RU2844690C1 - Resource blocks indication method, access point and station - Google Patents

Abstract

FIELD: electrical communication equipment.

SUBSTANCE: invention relates to communication engineering. In the method, a resource block allocation subfield in a starting frame includes a frequency band range indicator and a resource block indicator. Resource block indicator is used to indicate a multi-resource MRU allocated to the station. Frequency band range indicator is used to indicate the frequency band range in which the RU resource block in the MRU is located. Frequency band range indicator indicates the frequency band range related to the MRU and may further carry additional information, for example, the frequency band range in which the smallest RU is located.

EFFECT: reduced volume of service signalling in the system.

32 cl, 23 dwg, 9 tbl

Description

Cross-references to related applications

This application claims priority from Chinese Patent Application No. 202010923701.8, filed with the State Intellectual Property Office of the People's Republic of China on September 4, 2020, entitled "RESOURCE UNIT INDICATION METHOD, ACCESS POINT, AND STATION", claims priority from Chinese Patent Application No. 202011395419.3, filed with the State Intellectual Property Office of the People's Republic of China on December 2, 2020, entitled "RESOURCE UNIT INDICATION METHOD, ACCESS POINT, AND STATION", and claims priority from Chinese Patent Application No. 202110009966.1, filed with the State Intellectual Property Office of the People's Republic of China on January 5, 2021, and entitled "RESOURCE UNIT INDICATION METHOD, ACCESS POINT, AND STATION", which are incorporated herein by reference in their entirety.

Field of technology to which the invention relates

The present application relates generally to the field of communication technologies and, in particular, to a method for specifying resource blocks, an access point and a station.

State of the art

In the traditional wireless local area network (WLAN), when it is necessary to send uplink data, the non-access point station (non-AP STA) occupies the entire channel to transmit data through contention, which greatly reduces the efficiency of frequency utilization. In order to improve this situation, the radio channel is divided into multiple sub-channels (subcarriers) in the frequency domain to form a resource unit (RU), and user data is transmitted in some RUs instead of occupying the entire channel. In this way, multiple users can simultaneously perform parallel transmission in each time period, and they do not need to wait in a queue and compete with each other, thereby improving the efficiency of frequency utilization.

In the downlink, the access point (AP) can determine the RU allocation based on the priority of the downlink data of each non-AP station. However, in the uplink, the AP needs to notify the terminal device of the allocated RB through a trigger frame. The trigger frame includes a plurality of user information fields. One user information field includes information to be read by one station. For example, M user information fields are information to be read by non-AP station 1 for non-AP station M, respectively. The RB allocation subfield in the user information field is used to indicate the RB allocated to the non-AP station. Then, the non-AP station can send a data packet in the allocated RB. However, some non-AP stations need to send a relatively large amount of data, and it is necessary to allocate a relatively large number of RBs. Therefore, how to allocate a set of resource blocks of the corresponding station without an access point using the resource block allocation subfield is a technical problem that needs to be solved urgently.

The essence of the invention

Embodiments of the present application provide a method for specifying resource blocks, an access point, and a station for allocating a plurality of resource blocks to a corresponding station without an access point.

According to a first aspect, the present application provides a method for indicating resource blocks. In this method, a station receives a trigger frame from an access point, where the trigger frame includes a resource block allocation subfield used to indicate resource allocation to the station, the resource block allocation subfield includes a frequency band range indicator and a resource block indicator, the resource block indicator is used to indicate a multi-resource unit MRU allocated to the station, and the frequency band range indicator is used to indicate a frequency band range in which the smallest resource unit RU in the MRU is located; and then the station can determine the allocated MRU based on the resource block indicator and the frequency band range indicator.

It can be learned that in the method, the MRU can be allocated to the station so that the MRU is allocated more flexibly to help improve the utilization of the frequency band. In addition, the frequency band range indicated by the frequency band range indicator is the frequency band range in which the smallest RU in the MRU is located. Compared with the case where the frequency band range indicator indicates only the lowest frequency band range related to the MRU, the frequency band range indicator in the present application carries more information to help reduce the number of indices required to indicate resource blocks to indicate each MRU.

In one implementation, in the method for indicating resource blocks, the frequency band range indicator is used to indicate the frequency band of 80 MHz in which the smallest RU in the MRU is located. In other words, the granularity of the frequency band range in which the smallest RU in the MRU is located and which is indicated by the frequency band range indicator is 80 MHz. In this implementation, the location of the frequency band of 80 MHz in which the smallest RU in the MRU is located can be obtained from the frequency band range indicator. Thus, under this condition, the resource block indicator can indicate the corresponding MRU. With the same number of MRUs, the number of indices required to indicate resource blocks is reduced.

In another implementation, in the method of indicating resource blocks, the frequency band range indicator is used to indicate the frequency band of 40 MHz in which the smallest RU in the MRU is located. In other words, the granularity of the frequency band range in which the smallest RU in the MRU is located and which is indicated by the frequency band range indicator is 40 MHz. In this implementation, the location of the frequency band of 40 MHz in which the smallest RU in the MRU is located can be obtained from the frequency band range indicator. Thus, under this condition, the resource block indicator can indicate the corresponding MRU. With the same number of MRUs, the number of indices required to indicate resource blocks is reduced.

If the smallest RU in an MRU is a RU (996-tone RU) that includes 996 subcarriers, the 40 MHz bandwidth range indicated by the bandwidth range indicator may be one of the two 40 MHz bandwidth ranges covered by the 996-tone RU, or specified as the lowest 40 MHz bandwidth range in the two 40 MHz bandwidth ranges covered by the 996-tone RU, or specified as the highest 40 MHz bandwidth range in the two 40 MHz bandwidth ranges covered by the 996-tone RU.

In addition, if an MRU has multiple smallest RUs, the frequency band range indicator may indicate the frequency band range in which one of the smallest RUs is located.

In another implementation, the frequency band range indicator is used to indicate the 160 MHz frequency band in which the smallest RU in the MRU is located. In another implementation, the frequency band range indicator is used to indicate the 240 MHz frequency band in which the smallest RU in the MRU is located. In another implementation, the frequency band range indicator is used to indicate the 320 MHz frequency band in which the smallest RU in the MRU is located.

In this specification, the frequency band range indicated by the frequency band range designator is actually a specific range of frequency bands within a frequency passband or a location of a range of frequency bands within a frequency passband. For example, the 80 MHz frequency band range indicated by the frequency band range designator is actually a range of 80 MHz frequency bands within a passband or an 80 MHz location within a passband.

In this application, the MRU may include, but is not limited to, the following several elements.

The MRU indicated by the resource block indicator includes one resource block (26-tone RU) whose size is 26 subcarriers and one resource block (52-tone RU) whose size is 52 subcarriers, and the frequency band range indicated by the frequency band range indicator is the frequency band range in which the 26-tone RU is located; or

The MRU indicated by the resource block indicator includes one RU (106-tone RU) whose size is 106 subcarriers and one 26-tone RU, and the frequency band range indicated by the frequency band range indicator is the frequency band range in which the 26-tone RU is located; or

The MRU indicated by the resource block indicator includes one resource block (484-tone RU) whose size is 484 subcarriers and one resource block (242-tone RU) whose size is 242 subcarriers, and the frequency band range indicated by the frequency band range indicator is the frequency band range in which the 242-tone RU is located; or

The MRU indicated by the resource block indicator includes one resource block (996-tone RU) whose size is 996 subcarriers and one 484-tone RU, and the frequency band range indicated by the frequency band range indicator is the frequency band range in which the 484-tone RU is located; or

The MRU indicated by the resource block designator includes two 996-tone RUs and one 484-tone RU, and the frequency band range indicated by the frequency band range designator is the frequency band range in which the 484-tone RU is located; or

The MRU indicated by the resource block designator includes three 996-tone RUs, and the frequency band range indicated by the frequency band range designator is the frequency band range in which one of the 996-tone RUs is located; or

The MRU indicated by the resource block designator includes three 996-tone RUs and one 484-tone RU, and the frequency band range indicated by the frequency band range designator is the frequency band range in which the 484-tone RU is located; or

The MRU indicated by the resource block indicator includes one 996-tone RU, one 484-tone RU, and one 242-tone RU, and the frequency band range indicated by the frequency band range indicator is the frequency band range in which the 242-tone RU is located.

For a (3*996+484)-tone RU, in the resource block indicator method in this aspect, the frequency band range indicated by the frequency band range indicator is the 80 MHz frequency band in which the 484-tone RU is located, and only two indices are required for the (3*996+484)-tone RU indicated by the resource block indicator to indicate the location of the 484-tone RU in the 80 MHz frequency band range to notify the station of the allocation of the (3*996+484)-tone RU; or the frequency band range indicated by the frequency band range indicator is a 40 MHz frequency band in which a 484-tone RU is located, and only one index is required for the (3*996+484)-tone RU indicated by the resource block indicator to notify the station of the allocated (3*996+484)-tone RU. However, in the resource block indicator method in which the frequency band range indicated by the frequency band range indicator is the lowest 80 MHz frequency band related to the (3*996+484)-tone RU, the resource block indicator must additionally separately indicate eight indices to notify the station of the allocated (3*996+484)-tone RU. Thus, the resource block indicator method in this aspect can reduce the number of indices required for the resource block indicator.

According to a second aspect, the present application further provides a method for indicating resource blocks. The method of the resource block pointer corresponds to the method of the resource block pointer in the first aspect and is described from the point of view of an access point. In the method, the access point determines a trigger frame, where the trigger frame includes a resource block allocation subfield used to indicate the resource allocation of a station, the resource block allocation subfield includes a frequency band range pointer and a resource block pointer, the resource block pointer is used to indicate a multi-resource unit MRU allocated to the corresponding station, and the frequency band range pointer is used to indicate the frequency band range in which the smallest resource unit RU in the MRU is located; and the access point sends the trigger frame.

It can be learned that in the method, the MRU can be allocated to the station so that the MRU is allocated more flexibly, which can improve the utilization of the frequency band. In addition, when the access point needs to allocate the MRU to the station, the frequency band range indicator can be used to indicate the frequency band range in which the smallest RU in the MRU is located, and then, under this condition, an index to be indicated by the resource block indicator is determined. Compared with the case where the frequency band range indicator only indicates the lowest frequency band related to the MRU, the frequency band range indicator in the present application carries more information, such as the frequency band range in which the smallest RU is located, which can reduce the number of indices required to indicate the resource blocks to indicate each MRU.

For another related implementation of the method of specifying resource blocks, please refer to the related implementation in the first aspect. The details are not described here.

According to a third aspect, the present application further provides a method for indicating resource blocks. The method may include the following: a station receives a trigger frame, where the trigger frame includes a resource block allocation subfield used to indicate the resource allocation of the station, the resource block allocation subfield includes a frequency band range indicator and a resource block indicator, the resource block indicator is used to indicate an MRU allocated to the station, and the frequency band range indicator is used to indicate a frequency band range in which the MRU is located; and the station determines the allocated MRU based on the frequency band range indicator and the resource block indicator.

It can be learned that in the MRU method, stations can be allocated so that MRU is allocated more flexibly to promote better utilization of the frequency band.

In addition, after determining the allocated RU/MRU based on the frequency band range indicator and the resource block indicator, the station can determine the size of the allocated MRU based on the resource block indicator, determine, based on the frequency band range indicator, the frequency band range in which the RU/MRU is located, and then determine, in the frequency band range, the RU/MRU corresponding to the index indicated by the resource block indicator. It can be learned that in the method, the resource block indicator needs to indicate only the RU/MRU in the frequency band range, and thus the number of indices that need to be indicated by the resource block indicator to indicate the MRU of this size is reduced. In other words, in the method, the frequency band range indicator can carry more information, and the logic of the resource block indicator is simplified as much as possible, which can reduce the processing complexity of the station.

In the method of specifying resource blocks, an MRU that can be allocated to a station includes, but is not limited to, the following multiple elements: an MRU (represented as a (52+26)-tone RU) including one resource block (26-tone RU) whose size is 26 subcarriers and one resource block (52-tone RU) whose size is 52 subcarriers; an MRU (represented as a (106+26)-tone RU) including one (106-tone RU) whose size is 106 subcarriers and one 26-tone RU; MRU (designated as (484+242)-tone RU), which includes one resource block (484-tone RU) whose size is equal to 484 subcarriers, and one resource block whose size is equal to 242 subcarriers; MRU (designated as (996+484)-tone RU), which includes one resource block (996-tone RU) whose size is equal to 996 subcarriers and one 484-tone RU; MRU (designated as (2*996+484)-tone RU), which includes two 996-tone RUs and one 484-tone RU; MRU (designated as 3*996-tone RU), which includes three 996-tone RUs; MRU (designated as (3*996+484)-tone RU), which includes three 996-tone RUs and one 484-tone RU; or MRU (designated as (996+484+242)-tone RU), which includes one 996-tone RU, one 484-tone RU and one 242-tone RU.

In the resource block indicator method, when the frequency band range in which the MRU indicated by the resource block indicator is located is less than or equal to 80 MHz, the frequency band range indicated by the frequency band range indicator is 80 MHz in the passband; or

when the frequency band range in which the MRU indicated by the resource block indicator is located is greater than 80 MHz and less than or equal to 160 MHz, the frequency band range indicated by the frequency band range indicator is 160 MHz in passband; or

when the frequency band range in which the MRU indicated by the resource block indicator is located is greater than 160 MHz and less than or equal to 240 MHz, the frequency band range indicated by the frequency band range indicator is 240 MHz or 320 MHz in passband; or

when the frequency band range in which the MRU indicated by the resource block indicator is located is greater than 240 MHz and less than or equal to 320 MHz, the frequency band range indicated by the frequency band range indicator is 320 MHz in passband.

In one implementation, the resource block allocation subfield occupies 9 bits, the bandwidth indicator occupies bit 0 and bit 1 of the 9 bits, and the resource block indicator occupies bits 2 through bit 8.

In one implementation, if the frequency band range is 320 MHz, and if the frequency band range indicated by the frequency band range indicator is 80 MHz in the frequency band range of 320 MHz, four states represented by bit 0 and bit 1 may be used for the frequency band range indicator to respectively indicate four frequency bands of 80 MHz in the frequency band range of 320 MHz. If the frequency band range indicated by the frequency band range indicator is 160 MHz or 160 MHz in the frequency band range of 320 MHz, two states represented by bit 0 or bit 1 may be used for the frequency band range indicator to respectively indicate two frequency bands of 160 MHz in the frequency band range of 320 MHz. If the frequency band range indicated by the frequency band range indicator is 320 MHz, the state represented by bit 0 or bit 1 may not be limited for the frequency band range indicator to indicate 320 MHz.

In another implementation, if the frequency band range indicated by the frequency band range indicator is the lowest 240 MHz frequency band range or the highest 240 MHz frequency band range in a 320 MHz frequency band range, two states represented by bit 0 or bit 1 may be used for the frequency band range indicator to respectively indicate two 240 MHz frequency band ranges in the 320 MHz frequency band range.

According to a fourth aspect, the present application further provides a method for indicating resource blocks. The method corresponds to the method of the resource block indicator in the third aspect and is described from the point of view of an access point. The method for indicating resource blocks in this aspect includes the following: the access point determines a trigger frame, where the trigger frame includes a resource block allocation subfield used to indicate the resource allocation of a station, the resource block allocation subfield includes a frequency band indicator and a resource block indicator, where the resource block indicator is used to indicate an MRU allocated to a corresponding station, and the frequency band indicator is used to indicate a frequency band range in which the MRU is located; and the access point sends the trigger frame.

It can be learned that in the MRU method, the station can be allocated MRU so that it is allocated more flexibly, which can improve the utilization of the frequency band.

In addition, when allocating an MRU to a corresponding station, the access point may indicate, using a frequency band indicator, the frequency band in which the MRU is located, and then determine, in the frequency band, an index to be indicated by the resource block indicator to notify the station of the allocated MRU. It can be learned that in the method, the resource block indicator only needs to indicate the RU/MRU in the frequency band, and thus the number of indices to be indicated by the resource block indicator to indicate the MRU of this size is reduced. In other words, in the method, the frequency band indicator can carry more information, and the logic of indicating the frequency band indicator and the resource block indicator is simplified as much as possible, which can reduce the processing complexity of the station.

For another related implementation of the method of specifying resource blocks, please refer to the related implementation in the third aspect. The details are not described here.

According to a fifth aspect, the present application further provides a method for indicating resource blocks. In this method, a station receives a trigger frame from an access point, where the trigger frame includes a resource block allocation subfield used to indicate resource allocation to the station, the resource block allocation subfield includes a frequency band range indicator and a resource block indicator, the resource block indicator is used to indicate a multi-resource unit MRU allocated to the station, and the frequency band range indicator is used to indicate a frequency band range in a bandwidth in which some or all of the RUs other than the MRU are located; and the station determines the allocated MRU based on the frequency band range indicator and the resource block indicator.

It can be learned that in the method, the MRU can be allocated to the station so that the MRU is allocated more flexibly to help improve the utilization of the frequency band. In addition, the frequency band range indicated by the frequency band range indicator is the frequency band range in which some or all of the RUs other than the MRU indicated by the resource block indicator are located, or the frequency band range indicated by the frequency band range indicator is the frequency band range other than the frequency band range in which the MRU indicated by the resource block indicator is located, in other words, the MRU to be indicated by the resource block indicator is determined from the frequency band range smaller than the bandwidth. Therefore, compared with the case where the MRU to be indicated by the resource block indicator is determined from the frequency band range corresponding to the bandwidth, the number of indices to be indicated by the resource block indicator is reduced.

In one implementation, the MRU indicated by the resource block indicator includes three resource blocks (996-tone RU) whose size is equal to 996 subcarriers (designated as 3*996-tone RU), and the frequency band range indicated by the frequency band range indicator is 80 MHz in the bandwidth in which one 996-tone RU is located, other than the 3*996-tone RU, or the frequency band range indicated by the frequency band range indicator is 80 MHz in the bandwidth except the frequency band in which the 3*996-tone RU is located. It can be understood that in this implementation, the resource block indicator requires only one index to indicate the 3×996-tone RU, and the station can determine the allocated MRU with reference to the frequency band range indicator.

If the frequency band range indicated by the frequency band range indicator is the lowest 80 MHz frequency band range that relates to 3*996-tone RUs in the passband, after the lowest 80 MHz frequency band range that relates to 3*996-tone RUs in the passband is determined, there are three combinations for 3*996-tone RUs (that is, there are three combinations when two 996-tone RUs are selected from three 80 MHz frequency band ranges other than the lowest 80 MHz frequency band in the passband). Therefore, the resource block indicator must indicate one of the three indices corresponding to the three combinations in order to uniquely notify the station of the allocated MRU. Therefore, the value of the frequency band range indicator in this application makes it possible to reduce the number of indices that the resource block indicator must indicate.

According to a sixth aspect, the present application further provides a method for indicating resource blocks. The method corresponds to the method of the resource block indicator in the fifth aspect and is described from the point of view of an access point. The method includes the following: the access point determines a trigger frame, where the trigger frame includes a resource block allocation subfield used to indicate the resource allocation of a station, the resource block allocation subfield includes a frequency band range indicator and a resource block indicator, the resource block indicator is used to indicate an MRU allocated to the corresponding station, and the frequency band range indicator is used to indicate a frequency band range in the bandwidth in which some or all of the RUs other than the MRUs are located; and the access point sends the trigger frame.

It can be learned that in the method, the MRU can be allocated to the station so that the MRU is allocated more flexibly to help improve the utilization of the frequency band. In addition, the frequency band range indicated by the frequency band range indicator is the frequency band range in which some or all of the RUs other than the MRU indicated by the resource block indicator are located, or the frequency band range indicated by the frequency band range indicator is the frequency band range other than the frequency band range in which the MRU indicated by the resource block indicator is located, in other words, the MRU to be indicated by the resource block indicator is determined from the frequency band range smaller than the bandwidth. Therefore, compared with the case where the MRU to be indicated by the resource block indicator is determined from the frequency band range corresponding to the bandwidth, the number of indices to be indicated by the resource block indicator is reduced.

For another related implementation of the method of specifying resource blocks, refer to the related implementation in the fifth aspect. The details are not described here.

According to a seventh aspect, the present application further provides a method for indicating resource blocks. The method includes the following: a station receives a trigger frame from an access point, where the trigger frame includes a resource block allocation subfield used to indicate resource allocation to the station, the resource block allocation subfield includes a frequency band range indicator and a resource block indicator, the frequency band range indicator is used to indicate a frequency band range in a bandwidth, the resource block indicator is used to indicate an MRU allocated to the station, and the MRU includes remaining resource blocks RUs in a frequency band range, in a bandwidth different from the frequency band range indicated by the frequency band range indicator; and the station determines the allocated MRU based on the frequency band range indicator and the resource block indicator.

It can be learned that in the method, the MRU can be allocated to a station so that the MRU is allocated more flexibly, which can improve the utilization of the frequency band. In addition, the MRU indicated by the resource block indicator is a combination of the remaining RUs in a frequency band range, in a bandwidth different from the frequency band range indicated by the frequency band range indicator. Therefore, compared with the case where the MRU to be indicated by the resource block indicator is determined from the frequency band range corresponding to the bandwidth, the number of indices to be indicated by the resource block indicator is reduced.

In one implementation, the MRU indicated by the resource block pointer includes three resource blocks (996-tone RU) whose size is 996 subcarriers (denoted as 3*996-tone RU), and the frequency band range indicated by the frequency band range pointer is 80 MHz in the passband. In this case, the 3×996-tone RU includes the remaining three 996-tone RUs in the frequency band range other than 80 MHz in the passband. It can be learned that in this implementation, the resource block pointer needs one index to indicate the 3×996-tone RU. Compared with the case where the frequency band range indicated by the frequency band range indicator is the lowest 80 MHz frequency band range related to the 3*996-tone RU in the passband, the number of indices to be indicated by the resource block indicator is reduced in this application.

According to an eighth aspect, the present application further provides a method for indicating resource blocks. The method corresponds to the method of the resource block indicator in the seventh aspect and is described from the point of view of an access point. The method includes the following: the access point determines a trigger frame, where the trigger frame includes a resource block allocation subfield used to indicate resource allocation to a station, the resource block allocation subfield includes a frequency band range indicator and a resource block indicator, the frequency band range indicator is used to indicate a frequency band range in a bandwidth, the resource block indicator is used to indicate an MRU allocated to the corresponding station, and the MRU includes the remaining resource blocks RU in a frequency band range, in a bandwidth different from the frequency band range indicated by the frequency band range indicator; and the access point sends the trigger frame.

The MRU indicated by the resource block indicator is a combination of the remaining RUs in a frequency band range in a bandwidth different from the frequency band range indicated by the frequency band range indicator. Therefore, compared with the case where the MRU to be indicated by the resource block indicator is determined from the frequency band range corresponding to the bandwidth, the number of indices to be indicated by the resource block indicator is reduced.

For another related implementation of the method of specifying resource blocks, refer to the related implementation in the seventh aspect. The details are not described here.

In addition, in the first to eighth aspects, the resource block allocation subfield occupies N bits, and the number of bits in the N bits occupied by the frequency band indicator is determined based on the bandwidth and the frequency band range indicated by the frequency band range indicator. For example, the frequency band range indicator occupies from bit 0 to bit x, and the resource block indicator occupies from bit (x+1) to bit N. The value x refers to the bandwidth and the frequency band range indicated by the frequency band range indicator, and both the value N and x are greater than 0.

According to a ninth aspect, the present application further provides a method for indicating resource blocks. The method includes the following: a station receives a trigger frame from an access point, where the trigger frame includes a resource block allocation subfield used to indicate resource allocation to the station, the resource block allocation subfield occupies N bits, and an index indicated by the N bits represents an absolute location of a multi-resource unit MRU in a bandwidth, where N is greater than 0; and the station determines an MRU corresponding to the index indicated by the N bits, and uses the MRU as an MRU allocated to the station.

It can be learned that in the method of specifying resource blocks in the resource block allocation subfield, no distinction is made for the bit specifically used to specify a specific frequency band range, and the corresponding MRU can be directly searched based on the index specified by N bits in the resource block allocation subfield. Thus, the processing logic is greatly simplified, which can reduce the processing complexity of the station.

In one implementation, N is 9.

The absolute location, which is related to the MRU in the bandwidth and which is specified by N bits, contains one or more of the following:

An MRU comprising a first resource block (996-tone RU) whose size is 996 subcarriers and a second 996-tone RU in a frequency band of 320 MHz, or an MRU comprising a third 996-tone RU and a fourth 996-tone RU in a frequency band of 320 MHz; or

An MRU comprising the first 996-tone RU - the fourth 996-tone RU in the 320 MHz frequency band; or

An MRU that includes a second resource block (a 52-tone RU) whose size is 52 subcarriers and a second resource block (a 26-tone RU) whose size is 26 subcarriers in any 20 MHz band of frequency bands in the 320 MHz band of frequency bands, an MRU that includes a third 52-tone RU and an eighth 26-tone RU in any 20 MHz band of frequency bands in the 320 MHz band of frequency bands, or an MRU that includes a second 52-tone RU and a fifth 26-tone RU in any 20 MHz band of frequency bands in the 320 MHz band of frequency bands; or

An MRU comprising a first resource block (106-tone RU) whose size is equal to 106 subcarriers and a fifth 26-tone RU in any 20 MHz bandwidth in the 320 MHz bandwidth, or an MRU comprising a second 106-tone RU and a fifth 26-tone RU in any 20 MHz bandwidth in the 320 MHz bandwidth; or

An MRU comprising a first or second resource block (242-tone RU) whose size is 242 subcarriers and a second resource block (484-tone RU) whose size is 484 subcarriers in any 80 MHz band of frequency bands in the 320 MHz band of frequency bands, or an MRU comprising a third or fourth 242-tone RU and the first 484-tone RU in any 80 MHz band of frequency bands in the 320 MHz band of frequency bands; or

An MRU comprising a first or second 484-tone RU and a second resource block (996-tone RU) whose size is equal to 996 subcarriers in any 160 MHz band of the 320 MHz band, or an MRU comprising a third or fourth 484-tone RU and a second 996-tone RU in any 160 MHz band of the 320 MHz band; or

An MRU comprising a first or second 484-tone RU, a second 996-tone RU, and a third 996-tone RU in the lowest 240 MHz band of the 320 MHz band, an MRU comprising a third or fourth 484-tone RU, a first 996-tone RU, and a third 996-tone RU in the lowest 240 MHz band of the 320 MHz band, or an MRU comprising a fifth or sixth 484-tone RU, a first 996-tone RU, and a second 996-tone RU in the lowest 240 MHz band of the 320 MHz band; or

An MRU comprising a first or second 484-tone RU, a second 996-tone RU, and a third 996-tone RU in the lowest 240 MHz band of the 320 MHz band, an MRU comprising a third or fourth 484-tone RU, a first 996-tone RU, and a third 996-tone RU in the highest 240 MHz band of the 320 MHz band, or an MRU comprising a fifth or sixth 484-tone RU, a first 996-tone RU, and a second 996-tone RU in the highest 240 MHz band of the 320 MHz band; or

An MRU comprising a first or second 484-tone RU, a second 996-tone RU, a third 996-tone RU, and a fourth 996-tone RU in a 320 MHz frequency band, an MRU comprising a third or fourth 484-tone RU, a first 996-tone RU, a third 996-tone RU, and a fourth 996-tone RU in a 320 MHz frequency band, an MRU comprising a fifth or sixth 484-tone RU, a first 996-tone RU, a second 996-tone RU, and a fourth 996-tone RU in a 320 MHz frequency band, or an MRU comprising a seventh or eighth 484-tone RU, a first 996-tone RU, a second 996-tone RU, and a third 996-tone RU in the 320 MHz frequency band; or

MRU comprising three 996-tone RUs in the 320 MHz frequency band; or

An MRU comprising a first or second 242-tone RU, a second 484-tone RU, and a second 996-tone RU in the lowest 160 MHz band of the 320 MHz band, an MRU comprising a third or fourth 242-tone RU, a first 484-tone RU, and a second 996-tone RU in the lowest 160 MHz band of the 320 MHz band, an MRU comprising a fifth or sixth 242-tone RU, a fourth 484-tone RU, and a first 996-tone RU in the lowest 160 MHz band of the 320 MHz band. MHz or an MRU comprising a seventh or eighth 242-tone RU, a third 484-tone RU and a first 996-tone RU in the lowest 160 MHz band in the 320 MHz band; or

An MRU comprising a first or second 242-tone RU, a second 484-tone RU, and a second 996-tone RU in the lowest 160 MHz band of the 320 MHz band, an MRU comprising a third or fourth 242-tone RU, a first 484-tone RU, and a second 996-tone RU in the lowest 160 MHz band of the 320 MHz band, an MRU comprising a fifth or sixth 242-tone RU, a fourth 484-tone RU, and a first 996-tone RU in the highest 160 MHz in the 320 MHz band, or an MRU comprising a seventh or eighth 242-tone RU, a third 484-tone RU, and a first 996-tone RU in the lowest band 160 MHz in the 320 MHz frequency band range.

According to a tenth aspect, the present application further provides a method for indicating resource blocks. The method corresponds to the method of the resource block indicator in the ninth aspect and is described from the point of view of an access point. The method includes the following: the access point determines a trigger frame, where the trigger frame includes a resource block allocation subfield used to indicate the allocation of a station resource, the resource block allocation subfield occupies N bits, and the index indicated by the N bits directly represents the absolute location of the MRU in the bandwidth, where N is greater than 0; and the access point sends the trigger frame.

It can be learned that in the method of specifying resource blocks in the resource block allocation subfield, no distinction is made for the bit specifically used to specify a specific frequency band range, and the corresponding MRU can be directly searched based on the index specified by N bits in the resource block allocation subfield. Thus, the processing logic is greatly simplified, which can reduce the processing complexity of the station.

For another related implementation of the method of specifying resource blocks, refer to the related implementation in the ninth aspect. The details are not described here.

According to an eleventh aspect, the present application further provides a communication device. The communication device has some or all of the functions of the station in the example method in the first aspect, the third aspect, the fifth aspect, the seventh aspect or the ninth aspect. For example, the communication device may have the functions of some or all of the embodiments of the present application or may have the function of independently implementing any embodiment of the present application. The function may be implemented by hardware or may be implemented by hardware executing corresponding software. The hardware or software includes one or more units or modules corresponding to the above functions.

In a possible embodiment, the structure of the communication device may include a processing unit and a communication unit. The processing unit is configured to support the communication device when performing the corresponding function in the above-mentioned methods. The communication unit is configured to maintain communication between the communication device and another device. The communication device may additionally include a memory device. The memory unit is configured to be connected to the processing unit and the communication unit, and the storage unit stores program instructions and data that are necessary for the communication device.

In one implementation, the communication device implements a related function of the station in the first aspect, and the communication device includes:

a communication unit configured to receive a trigger frame from an access point, where

the trigger frame includes a resource block allocation subfield used to indicate the resource allocation of the station, the resource block allocation subfield includes a frequency band range indicator and a resource block indicator, the resource block indicator is used to indicate the MRU allocated to the station, and the frequency band range indicator is used to indicate the frequency band range in which the smallest RU in the MRU indicated by the resource block indicator is located; and

a processing unit configured to determine the allocated MRU based on the frequency band range indicator and the resource block indicator.

In an example, the processing unit may be a processor, the communication unit may be a transceiver or communication interface, and the storage unit may be a memory.

In another embodiment, the communication device implements the related function of the station in the third aspect, and the communication device includes:

a communication unit configured to receive a trigger frame from an access point, where

the trigger frame includes a resource block allocation subfield used to indicate the resource allocation of the station, the resource block allocation subfield includes a frequency band range indicator and a resource block indicator, the resource block indicator is used to indicate the MRU allocated to the station, and the frequency band range indicator is used to indicate the frequency band range in which the MRU is located; and

a processing unit configured to determine the allocated MRU based on the frequency band range indicator and the resource block indicator.

In another embodiment, the communication device implements the related function of the station in the fifth aspect, and the communication device includes:

a communication unit configured to receive a trigger frame from an access point, where

the trigger frame includes a resource block allocation subfield used to indicate the resource allocation of the station, the resource block allocation subfield includes a frequency band range indicator and a resource block indicator, the resource block indicator is used to indicate the MRU allocated to the station, and the frequency band range indicator is used to indicate the frequency band range in the bandwidth in which some or all of the RUs other than the MRUs are located; and

a processing unit configured to determine the allocated MRU based on the frequency band range indicator and the resource block indicator.

In another embodiment, the communication device implements the related function of the station in the seventh aspect, and the communication device includes:

a communication unit configured to receive a trigger frame from an access point, where

the trigger frame includes a resource block allocation subfield used to indicate the resource allocation to the station, the resource block allocation subfield includes a frequency band range indicator and a resource block indicator, the frequency band range indicator is used to indicate a range of frequency bands in the frequency band, the resource block indicator is used to indicate the MRU allocated to the station, and the MRU includes the remaining RUs in the frequency band range, in a bandwidth different from the frequency band range indicated by the frequency band range indicator; and

a processing unit configured to determine the allocated MRU based on the frequency band range indicator and the resource block indicator.

In another implementation, the communication device may implement the related function of the station in another aspect. The details are not described here.

In one implementation, the communication device implements a related function of the station in the first aspect and may include:

a transceiver configured to receive a trigger frame from an access point, where

the trigger frame includes a resource block allocation subfield used to indicate the resource allocation of the station, the resource block allocation subfield includes a frequency band range indicator and a resource block indicator, the resource block indicator is used to indicate the MRU allocated to the station, and the frequency band range indicator is used to indicate the frequency band range in which the smallest RU in the MRU indicated by the resource block indicator is located; and

a processor configured to determine an allocated MRU based on a frequency band range indicator and a resource block indicator.

In another embodiment, the communication device implements the related function of the station in the third aspect, and the communication device includes:

a transceiver configured to receive a trigger frame from an access point, where

the trigger frame includes a resource block allocation subfield used to indicate the resource allocation of the station, the resource block allocation subfield includes a frequency band range indicator and a resource block indicator, the resource block indicator is used to indicate the MRU allocated to the station, and the frequency band range indicator is used to indicate the frequency band range in which the MRU is located; and

a processor configured to determine an allocated MRU based on a frequency band range indicator and a resource block indicator.

In another implementation, the communication device may implement the related function of the station in another aspect. The details are not described here.

According to the twelfth aspect, the present application further provides a communication device. The communication device has some or all of the functions of the access point in the example method in the second aspect, the fourth aspect, the sixth aspect, the eighth aspect or the tenth aspect. For example, the communication device may have the functions of some or all of the embodiments of the present application or may have the function of independently implementing any embodiment of the present application. The function may be implemented by hardware or may be implemented by hardware executing corresponding software. The hardware or software includes one or more units or modules corresponding to the above functions.

In a possible embodiment, the structure of the communication device includes a processing unit and a communication unit. The processing unit is configured to support the communication device when performing the corresponding function in the above-mentioned methods. The communication unit is configured to maintain communication between the communication device and another device. The communication device may additionally include a memory device. The memory unit is configured to be connected to the processing unit and the communication unit, and the storage unit stores program instructions and data that are necessary for the communication device.

In one implementation, the communication device implements a related function of the access point in the second aspect, and the communication device includes:

a processing unit configured to determine a trigger frame, where

the trigger frame includes a resource block allocation subfield used to indicate the resource allocation of the station, the resource block allocation subfield includes a frequency band range indicator and a resource block indicator, the resource block indicator is used to indicate the MRU allocated to the corresponding station, and the frequency band range indicator is used to indicate the frequency band range in which the smallest RU in the MRU indicated by the resource block indicator is located; and

a communication unit configured to send a trigger frame.

In another implementation, the communication device implements the related function of the access point in the fourth aspect, and the communication device includes:

a processing unit configured to determine a trigger frame, where

the trigger frame includes a resource block allocation subfield used to indicate the resource allocation of the station, the resource block allocation subfield includes a frequency band range indicator and a resource block indicator, the resource block indicator is used to indicate the MRU allocated to the corresponding station, and the frequency band range indicator is used to indicate the frequency band range in which the MRU is located; and

a communication unit configured to send a trigger frame.

In another implementation, a communication device implements a related function of the access point in the sixth aspect, and the communication device includes:

a processing unit configured to determine a trigger frame, where

the trigger frame includes a resource block allocation subfield used to indicate the resource allocation of the station, the resource block allocation subfield includes a frequency band range indicator and a resource block indicator, the resource block indicator is used to indicate the MRU allocated to the corresponding station, and the frequency band range indicator is used to indicate the frequency band range in the bandwidth in which some or all of the RUs other than the MRUs are located; and

a communication unit configured to send a trigger frame.

In another implementation, the communication device implements a related function of the access point in the eighth aspect, and the communication device includes:

a processing unit configured to determine a trigger frame, where

the trigger frame includes a resource block allocation subfield used to indicate the resource allocation of the station, the resource block allocation subfield includes a frequency band range indicator and a resource block indicator, the frequency band range indicator is used to indicate a range of frequency bands in the frequency band, the resource block indicator is used to indicate the MRU allocated to the corresponding station, and the MRU includes the remaining resource blocks RU in the frequency band range, in a bandwidth different from the frequency band range indicated by the frequency band range indicator; and

a communication unit configured to send a trigger frame.

As an example, the processing unit may be a processor, the communication unit may be a transceiver or communication interface, and the storage unit may be a memory.

In another implementation, the communication device may implement a related function of an access point in another aspect. The details are not described here.

In one implementation, the communication device implements a related function of the access point in the second aspect and may include:

a processor configured to determine a trigger frame, where

the trigger frame includes a resource block allocation subfield used to indicate the resource allocation of the station, the resource block allocation subfield includes a frequency band range indicator and a resource block indicator, the resource block indicator is used to indicate the MRU allocated to the corresponding station, and the frequency band range indicator is used to indicate the frequency band range in which the smallest RU in the MRU indicated by the resource block indicator is located; and

a transceiver configured to send a trigger frame.

In one implementation, the communication device implements a related function of the access point in the fourth aspect and may include:

a processor configured to determine a trigger frame, where

the trigger frame includes a resource block allocation subfield used to indicate the resource allocation of the station, the resource block allocation subfield includes a frequency band range indicator and a resource block indicator, the resource block indicator is used to indicate the MRU allocated to the corresponding station, and the frequency band range indicator is used to indicate the frequency band range in which the MRU is located; and

a transceiver configured to send a trigger frame.

In another implementation, a communication device implements a related function of the access point in the sixth aspect, and the communication device includes:

a processor configured to determine a trigger frame, where

the trigger frame includes a resource block allocation subfield used to indicate the resource allocation of the station, the resource block allocation subfield includes a frequency band range indicator and a resource block indicator, the resource block indicator is used to indicate the MRU allocated to the corresponding station, and the frequency band range indicator is used to indicate the frequency band range in the bandwidth in which some or all of the RUs other than the MRUs are located; and

a transceiver configured to send a trigger frame.

In another implementation, the communication device implements a related function of the access point in the eighth aspect, and the communication device includes:

a processor configured to determine a trigger frame, where

the trigger frame includes a resource block allocation subfield used to indicate the resource allocation of the station, the resource block allocation subfield includes a frequency band range indicator and a resource block indicator, the frequency band range indicator is used to indicate a range of frequency bands in the passband, the resource block indicator is used to indicate the MRU allocated to the corresponding station, and the MRU includes the remaining RUs in the frequency band range, in a passband different from the frequency band range indicated by the frequency band range indicator; and

a transceiver configured to send a trigger frame.

In another implementation, the communication device may implement a related function of an access point in another aspect. The details are not described here.

In a particular implementation process, the processor may be configured to perform, for example, but not limited to, baseband processing; and the transceiver may be configured to perform, for example, but not limited to, radio frequency reception and sending. The above-mentioned components may be located separately in chips, independently of each other, or at least some or all of the components may be located in the same chip. For example, the processor may be further divided into an analog baseband processor and a digital baseband processor. The analog baseband processor and the transceiver may be integrated into the same chip, and the digital baseband processor may be located in an independent chip. With the continuous development of integrated circuit technologies, an increasing number of components may be integrated into a single chip. For example, a digital baseband processor and a plurality of application processors (for example, but not limited to, a graphics processor and a multimedia processor) may be integrated into a single chip. The microcircuit may be called a system-on-a-chip. Whether all components are located separately in different microcircuits or combined and located in one or more microcircuits usually depends on the specific design requirements of the product. The specific forms of implementation of the components are not limited to the embodiments of the present invention.

According to the thirteenth aspect, the present application further provides a processor configured to perform the method in the first aspect, the third aspect, the fifth aspect, the seventh aspect or the ninth aspect, or to perform the method in the second aspect, the fourth aspect, the sixth aspect, the eighth aspect or the tenth aspect. In the process of performing these methods, the process of sending the above-mentioned information and the process of receiving the above-mentioned information in the above-mentioned methods can be regarded as a process of outputting the above-mentioned information by the processor and a process of receiving the above-mentioned input information by the processor. In particular, when outputting information, the processor outputs information to the transceiver so that the transceiver transmits the information. In addition, after the information is output by the processor, it may be necessary to perform other processing on the information before the information is received by the transceiver. Similarly, when the processor receives input information, the transceiver receives the information and inputs the information to the processor. In addition, after the transceiver receives the information, it may be necessary to perform other processing on the information before the information is input to the processor.

Based on the above principle, for example, receiving a trigger frame in the above method can be considered as the processor inputting a trigger frame. In another example, sending a trigger frame can be considered as the processor outputting a trigger frame.

In this case, for operations such as transmitting, sending, and receiving that are attributed to the processor, unless there is a specific statement or unless the operations are inconsistent with the actual function or internal logic of the operations in the relevant descriptions, the operations can be considered more generally to be operations such as input, reception, and output that are performed by the processor, rather than operations such as transmitting, sending, and receiving that are directly performed by the RF circuit and antenna.

In a particular implementation process, the processor may be a processor specially configured to perform these methods, or a processor, such as a general-purpose processor, configured to execute computer instructions in a memory to perform these methods. The memory may be a non-transitory memory, such as a read-only memory (ROM). The memory and the processor may be integrated into the same chip or may be located separately in different chips. The type of memory and the arrangement of the memory and the processor are not limited in the embodiments of the present application.

According to the fourteenth aspect, the present application provides a computer-readable storage medium, adapted to store computer software instructions, which are to be used by the above-mentioned data transmission device. The computer software instructions include a program used to perform the method according to the first aspect, the third aspect, the fifth aspect, the seventh aspect or the ninth aspect, or include a program used to perform the method according to the second aspect, the fourth aspect, the sixth aspect, the eighth aspect or the tenth aspect.

According to a fifteenth aspect, the present application further provides a computer program product including instructions. When the computer program product is run on a computer, the computer is enabled to perform the method in the first aspect, the third aspect, the fifth aspect, the seventh aspect, or the ninth aspect, or the computer is enabled to perform the method in the second aspect, the fourth aspect, the sixth aspect, the eighth aspect, or the tenth aspect.

According to the sixteenth aspect, the present application provides a microcircuit system. The microcircuit system includes a processor and an interface and is configured to support a data transmission device when implementing the function in the first aspect, the third aspect, the fifth aspect, the seventh aspect or the ninth aspect, for example, determining or processing at least one of: data and information in the above-mentioned method, for example, a trigger frame. In a possible embodiment, the microcircuit system further includes a memory, and the memory is configured to store program instructions and data that are needed by the station. The microcircuit system may include a microcircuit or include a microcircuit and other discrete devices.

According to the seventeenth aspect, the present application provides a microcircuit system. The microcircuit system includes a processor and an interface and is configured to support a data transmission device when implementing a function in the second aspect, the fourth aspect, the sixth aspect, the eighth aspect or the tenth aspect, for example, determining or processing at least one of: data and information in the above-mentioned method. In a possible embodiment, the microcircuit system further includes a memory, and the memory is configured to store program instructions and data that are needed by the station. The microcircuit system may include a microcircuit or include a microcircuit and other discrete devices.

Brief description of the drawings

Fig. 1 is a schematic representation of a network structure according to an embodiment of the present application;

Fig.2a is a schematic representation of the allocation of 160 MHz channels according to an embodiment of the present application;

Fig.2b is a schematic representation of the allocation of 320 MHz channels according to an embodiment of the present application;

Fig. 3 is a schematic representation of the distribution of subcarriers in the 80 MHz frequency band range according to an embodiment of the present application;

Fig.4 is a schematic representation of uplink transmission based on trigger frames according to an embodiment of the present application;

Fig. 5 is a schematic representation of the frame structure of a trigger frame according to an embodiment of the present application;

Fig. 6 is a flow chart of a method 110 for specifying resource blocks according to an embodiment of the present application;

Fig.7 is a schematic representation of a (52+26)-tone RU in the 20 MHz frequency band range according to an embodiment of the present application;

Fig.8 is a schematic representation of a (106+26)-tone RU in the 20 MHz frequency band range according to an embodiment of the present application;

Fig.9 is a schematic representation of a (484+242)-tone RU in the 80 MHz frequency band range according to an embodiment of the present application;

Fig.10 is a schematic representation of a (996+484)-tone RU in the 160 MHz frequency band range according to an embodiment of the present application;

Fig.11 is a schematic representation of a (2×996+484)-tone RU in the 240 MHz frequency band range according to an embodiment of the present application;

Fig.12 is a schematic representation of a 3×996-tone RU in the 320 MHz frequency band range according to an embodiment of the present application;

Fig.13 is a schematic representation of a (3×996+484)-tone RU in the 320 MHz frequency band range according to an embodiment of the present application;

Fig.14 is a schematic representation of a (484+242)-tone RU in the 80 MHz frequency band range according to an embodiment of the present application;

Fig. 15 is a flow chart of a method 120 for specifying resource blocks according to an embodiment of the present application;

Fig. 16 is a flow chart of a method 210 for specifying resource blocks according to an embodiment of the present application;

Fig. 17 is a flow chart of a method 220 for specifying resource blocks according to an embodiment of the present application;

Fig. 18 is a flow chart of a method 310 for specifying resource blocks according to an embodiment of the present application;

Fig. 19 is a flow chart of a method 410 for specifying resource blocks according to an embodiment of the present application;

Fig.20 is a schematic representation of the structure of a communication device 500 according to an embodiment of the present application;

Fig.21 is a schematic diagram of the structure of another communication device 600 according to an embodiment of the present application; and

Fig.22 is a schematic representation of the structure of a microcircuit according to an embodiment of the present application.

Detailed description of the invention

Below, with reference to the accompanying drawings, embodiments of the present application are clearly and completely described.

A network structure to which the resource block designation method provided in the present application is applicable is described using Fig. 1 as an example. Fig. 1 is a schematic diagram of a network structure according to an embodiment of the present application. The network structure may include one or more access point (AP) stations and one or more non-access point (non-AP STA) stations. For ease of description, in this specification, an access point station is referred to as an access point (AP), and a non-AP station is referred to as a station (STA). The description of Fig. 1 is provided using an example in which the network structure includes one AP and two stations (STA 1 and STA 2).

An access point may be an access point used by a terminal device (e.g., a mobile phone) to access a wired (or wireless) network, mainly deployed indoors, in a building and a university campus, and has a typical coverage radius that ranges from tens of meters to hundreds of meters. Of course, an access point can be deployed outdoors. An access point is equivalent to a bridge that connects a wired network and a wireless network. The main function of an access point is to connect various wireless network clients together, and then connect the wireless network to Ethernet. In particular, an access point may be a terminal device (e.g., a mobile phone) or a network device (e.g., a router) that includes a wireless communication chip (Wireless-Fidelity, WiFi). An access point may be a device that supports the 802.11be standard. Alternatively, the access point may be a device that supports multiple wireless local area networks (WLAN) standards of the 802.11 family, such as 802.11be, 802.11ax, 802.11ac, 802.11n, 802.11g, 802.11b, and 802.11a. The access point in the present application may be a high efficient (HE) access point or an extremely high throughput (EHT) access point, or may be an access point applicable to the future Wi-Fi standard.

The station may be a wireless communication chip, a wireless sensor, a wireless communication terminal, etc., and may also be referred to as a user. For example, the station may be a mobile phone supporting the Wi-Fi communication function, a tablet computer supporting the Wi-Fi communication function, a set-top box supporting the Wi-Fi communication function, a smart TV supporting the Wi-Fi communication function, an intelligent wearable device supporting the Wi-Fi communication function, a communication device installed on a vehicle supporting the Wi-Fi communication function, or a computer supporting the Wi-Fi communication function. In addition, the station may support the 802.11be standard. Alternatively, the station may support multiple 802.11 family of wireless local area networks (WLAN) standards, such as 802.11be, 802.11ax, 802.11ac, 802.11n, 802.11g, 802.11b, and 802.11a.

The access point in this application may be a high efficient (HE) STA or an extremely high throughput (EHT) STA, or may be an STA applicable to a future Wi-Fi standard.

For example, the access point and station may be devices used in the Internet of vehicles, nodes, sensors, etc., in the Internet of things (IoT), in smart cameras, smart remote controls or smart meters/water meters in a smart home, and in sensors in a smart city.

In this document, 802.11n may also be referred to as high throughput (HT), 802.11ac may also be referred to as very high throughput (VHT), 802.11ax (Wi-Fi 6) may also be referred to as high efficient (HE), 802.11be (Wi-Fi 7) may also be referred to as extremely high throughput (EHT), and pre-HT standards such as 802.11a/b/g are collectively referred to as non-high throughput (non-HT). 802.11b uses non-orthogonal frequency division multiplexing (non-OFDM).

Starting with 802.11a/g, WLAN evolves from 802.11n and 802.11ac to 802.11ax and 802.11be, which are currently under discussion. The bandwidth and the number of space-time streams allowed for transmission in WLAN are shown in Table 1, respectively.

Table 1. Maximum throughput and maximum transmission rate allowed for transmission in each WLAN standard 802.11a/g 802.11n (HT) 802.11ac (VHT) 802.11ax (HE) 802.11be (EHT) Bandwidth 20 MHz 20/40 MHz 20/40/80/160 MHz 20/40/80/160 MHz 20/40/80/160/240/320 MHz Supported maximum data transfer rate 54 Mbps 600 Mbps 6.9 Gbps 9.6 Gbps Not less than 30 Gbps

As shown in Table 1, the maximum data rate supported for data transmission increases with the increase of bandwidth. Therefore, a wider bandwidth (such as 240 MHz or 320 MHz) greater than 160 MHz should be considered in the future Wi-Fi standard.

Although embodiments of the present application are primarily described using a network in which IEEE 802.11 is deployed as an example, one skilled in the art may readily appreciate that aspects of the present application may be extended to other networks that utilize different standards or protocols, such as Bluetooth, high performance radio LAN (HIPERLAN) (a wireless standard similar to IEEE 802.11 and primarily used in Europe), a wide area network (WAN), a wireless local area network (WLAN), a personal area network (PAN), or another network currently known or later developed. Thus, regardless of the coverage area and wireless access protocol used, aspects presented in the present application are applicable to any suitable wireless network.

In addition, in order to facilitate understanding of the related content in the embodiments of the present application, some concepts presented in the embodiments of the present application are described.

1. Channel distribution

In one implementation, the bandwidth may be divided into a plurality of subchannels. Fig. 2a shows a schematic representation of channel allocation according to an embodiment of the present application. As shown in Fig. 2a, when the bandwidth is 160 MHz, the bandwidth may be divided into a primary channel of 20 MHz (or called a primary channel of 20 MHz, Primary 20 MHz, P20), a secondary channel of 20 MHz (Secondary 40 MHz, S40), a secondary channel of 40 MHz (Secondary 40 MHz, S40) and a secondary channel of 80 MHz (Secondary 80 MHz, S80). In an optional implementation, channel 1 may correspond to the primary channel of 20 MHz, channel 2 corresponds to the secondary channel of 20 MHz, channel 3 and channel 4 are combined into a secondary channel of 40 MHz, and channel 5 - channel 8 are combined into a secondary channel of 80 MHz. In addition, the 40 MHz primary channel (or referred to as the Primary 40MHz, P40) is the 40 MHz channel in which the 20 MHz primary channel is located, and the 80 MHz primary channel (or referred to as the Primary 80MHz, P80) is the 80 MHz channel in which the 20 MHz primary channel is located.

As another example, Fig. 2b shows another channel allocation scheme according to an embodiment of the present application. As shown in Fig. 2b, when the bandwidth is 320 MHz, the bandwidth can be divided into a primary channel of 20 MHz (or called a primary channel of 20 MHz, Primary 20 MHz, P20), a secondary channel of 20 MHz (Secondary 20 MHz, S20), a secondary channel of 40 MHz (Secondary 40 MHz, S40), a secondary channel of 80 MHz (Secondary 80 MHz, S80) and a secondary channel of 160 MHz (Secondary 160 MHz, S160). In a further implementation, channel 1 may correspond to a 20 MHz primary channel, channel 2 corresponds to a 20 MHz secondary channel, channel 3 and channel 4 are combined into a 40 MHz secondary channel, channel 5 - channel 8 are combined into a 80 MHz secondary channel, and channels 9-16 are combined into a 160 MHz secondary channel. In addition, the 40 MHz primary channel (or referred to as the 40 MHz primary channel, P40) is the 40 MHz channel in which the 20 MHz primary channel is located, the 80 MHz primary channel (or referred to as the 80 MHz primary channel, P80) is the 80 MHz channel in which the 20 MHz primary channel is located, and the 160 MHz primary channel (or referred to as the 160 MHz primary channel, P160) is the 160 MHz channel in which the 20 MHz primary channel is located.

In another implementation, the bandwidth may be divided into resource units (RUs) of different sizes. Resource blocks of different sizes can be obtained by combining different numbers of subcarriers, for example, a resource block (called a 996-tone RU) that includes (or whose size is) 996 subcarriers, a resource block (called a 484-tone RU) that includes (or whose size is) 484 subcarriers, a resource block (called a 484-tone RU) that includes (or whose size is) 484 subcarriers, a resource block (called a 106-tone RU) that includes (or whose size is) 106 subcarriers, a resource block (called a 26-tone RU) that includes (or whose size is) 26 subcarriers, a resource block (called a 52-tone RU) that includes (or whose size is) is) 52 subcarriers, a resource block (called a 2*996-tone RU), a (996+996)-tone RU that includes two 996-tone RUs, or a (996+996)-tone RU MRU), which includes (or whose size is) 2*996 subcarriers, or a resource block (called a 3*996-tone RU, a (996+996+996)-tone RU), which includes three 996-tone RUs, or a (996+996+996)-tone MRU), which includes (or whose size is) 3*996 subcarriers.

Fig. 3 is a schematic diagram of subcarrier allocation in a frequency band of 80 MHz according to an embodiment of the present application. As shown in Fig. 3, the first row indicates that the frequency band of 80 MHz may include 36 26-tone RUs, the second row indicates that the frequency band of 80 MHz may include 16 52-tone RUs, the third row indicates that the frequency band of 80 MHz may include eight 106-tone RUs, the fourth row indicates that 80 MHz may include four 242-tone RUs, and the fifth row indicates that the frequency band of 80 MHz may include two 484-tone RUs. Here, 484L represents the left half of the 484-tone RU, and 484R represents the right half of the 484-tone RU. Each of the two parts includes 242 subcarriers, which is another schematic representation of a 484-tone RU. The sixth line indicates that 80 MHz can include one 996-tone RU. In addition, in addition to the RU used for data transmission, there can additionally be a guard subcarrier, a blank subcarrier, or a direct current (DC) subcarrier, as shown in Fig. 3.

A 160 MHz bandwidth or a 160 MHz bandwidth that includes discrete 80 MHz + 80 MHz frequency bands may be regarded as a duplicate combination of the subcarrier allocation of the two 80 MHz bandwidths shown in Fig. 3. For example, the entire bandwidth may include one 2*996-tone RU or may include various combinations of a 26-tone RU, a 52-tone RU, a 106-tone RU, a 242-tone RU, a 484-tone RU, and a 996-tone RU.

For a 240 MHz bandwidth or a 240 MHz bandwidth that includes discrete 160 MHz + 80 MHz bands, the entire bandwidth may be considered as a dual combination of the subcarrier allocations of the three 80 MHz frequency bands shown in Fig. 3, or may include various combinations of a 26-tone RU, a 52-tone RU, a 106-tone RU, a 242-tone RU, a 484-tone RU, and a 996-tone RU.

For a 320 MHz bandwidth or a 320 MHz bandwidth that includes discrete frequency bands of 160 MHz+160 MHz, the entire bandwidth may be considered as a dual combination of the subcarrier allocation of the four 80 MHz frequency bands shown in Fig. 3, or may include various combinations of a 26-tone RU, a 52-tone RU, a 106-tone RU, a 242-tone RU, a 484-tone RU, and a 996-tone RU.

In the subcarrier allocation in the above-mentioned bandwidths, the frequencies increase sequentially from left to right. For example, the left side shown in Fig. 3 can be regarded as the lowest frequency, and the right side shown in Fig. 3 can be regarded as the highest frequency. The resource blocks are numbered from left to right, for example, the first (1st) resource block and the second (2nd) resource block. As shown in Fig. 3, four 242-tone RUs included in the 80 MHz frequency band can be respectively numbered from left to right: the first 242-tone RU, the second 242-tone RU, the third 242-tone RU and the fourth 242-tone RU. The first 242-tone RU and the second 242-tone RU are in one-to-one correspondence with the two lowest 20 MHz frequency bands in the 80 MHz frequency band range in ascending frequency order. The third 242-tone RU and the fourth 242-tone RU are in one-to-one correspondence with the two highest 20 MHz bands in the 80 MHz band range in ascending frequency order. Each 80 MHz band has one central 26-tone RU, so the 242-tone RU and the 20 MHz corresponding to the 242-tone RU do not completely overlap in frequency.

In addition to the multiple RUs described above, 802.11be further introduces a multi-resource unit (multi-RU, MRU), which is obtained by combining multiple RUs of the above sizes. For example, 802.11be additionally introduces a (52+26)-tone RU (or called a (52+26)-tone MRU or 78-tone RU), which includes one 52-tone RU and one 26-tone RU, a (106+26)-tone RU (or called a (106+26)-tone MRU or 132-tone RU), which includes one 106-tone RU and one 26-tone RU, a (484+242)-tone RU (or called a (484+242)-tone MRU or 726-tone RU), which includes one 484-tone RU and one 242-tone RU, a (996+484)-tone RU (or called a (996+484)-tone MRU or 1480-tone RU), comprising one 996-tone RU and one 484-tone RU, a (2*996+484)-tone RU (or called a (2*996+484)-tone MRU or 2476-tone RU), comprising two 996-tone RUs and one 484-tone RU, a 3*996-tone RU (or called a 3*996-tone MRU or 2988-tone RU), comprising three 996-tone RUs, a (3*996+484)-tone RU (or called a (3*996+484)-tone MRU or 3472-tone RU), comprising three 996-tone RUs and one 484-tone RU, or (996+484+242)-tone RU (or called (996+484+242)-tone MRU or 1722-tone RU), which includes one 996-tone RU, one 484-tone RU and one 242-tone RU.

A 26-tone RU corresponds approximately to 2 MHz, a 52-tone RU corresponds approximately to 4 MHz, a 106-tone RU corresponds approximately to 8 MHz, and a 242-tone RU corresponds approximately to 20 MHz. Addition or multiplication can be performed for RUs of other sizes, respectively. The details are not described here.

A plurality of RUs allocated by an access point to a station may be referred to as an MRU allocated to the station. The MRU includes a plurality of RUs, a plurality of combined resource blocks, or a plurality of combined resource blocks, or is a combination of a plurality of resource blocks. Unless otherwise specified, the terms "combined", "combined", and "combination" have the same meaning in this description. If necessary, an MRU including a plurality of RUs may further include some DC subcarriers, a blank subcarrier, etc.

2. Initiate the uplink transmission method of scheduling based on the trigger frame

Typically, an STA obtains a permission to send through channel contention, and then transmits uplink data, for example, by preempting a channel based on an enhanced distributed channel access (EDCA) method. A trigger frame-based uplink transmission scheduling method is introduced in 802.11ax. A schematic diagram of trigger frame-based uplink transmission scheduling is shown in Fig. 4. Fig. 4 is a schematic diagram of trigger frame-based uplink transmission according to an embodiment of the present application. An access point sends a trigger frame. The trigger frame includes a resource scheduling parameter and another parameter used by one or more stations to send a physical layer protocol data unit (PPDU) of the uplink. After receiving the trigger frame, the station obtains, by parsing the user information field, the same as (or the same as) the association identifier of the station, and then sends a high efficient trigger based physical layer protocol data unit (HE TB PPDU) to the RU or MRU specified in the resource block allocation subfield of the user information field, in other words, the EHT PPDU is a type of EHT PPDU. After receiving the uplink multi-user PPDU including the uplink sub-PPDUs sent by one or more stations, the access point responds using an acknowledgment frame. The acknowledgment frame sent by the access point to one or more stations may be sent in the downlink OFDMA manner or may be sent in the non-HT transmission duplication manner. The acknowledgment frame includes an acknowledgment frame (Ack) and a block acknowledgment frame (Block Ack). The block acknowledgment frame includes a compressed block acknowledgment frame and a multi-sta block acknowledgment frame (Multi-STA Block Ack). The acknowledgement frame and the block acknowledgement frame are acknowledgements of an uplink sub-PPDU sent by a single station, and the multi-station block acknowledgement frame is an acknowledgement of an uplink sub-PPDU sent by one or more stations.

In one implementation, the frame format of the trigger frame may be shown in Fig. 5. Fig. 5 is a schematic diagram of the structure of the trigger frame according to an embodiment of the present application. The trigger frame may include only some of the fields shown in Fig. 5. Alternatively, the trigger frame may include more fields than those shown in Fig. 5. This is not limited to this embodiment of the present application. For example, the trigger frame includes a common info field and a user info list field. The trigger frame may further include a frame control field, a duration field, a receiver address (RA) field, a transmitter address (TA) field, a padding field, a frame check sequence (FCS), and the like.

The common information field may also be called the general field or the common information field. The common information field includes common information that must be read by all stations, such as the trigger type subfield, the length subfield, the cascade indication subfield, the CS Required subfield, the bandwidth subfield, the GI+LTF subfield, and the trigger dependent common info subfield.

The user information list field may also be called the user information list field, the per-station field, etc. The user information list field includes one or more user info fields. Each user info field includes information that must be read by each station, such as the Association Identifier (AID) subfield, the RU allocation subfield, the coding type subfield, the Modulation and Coding Scheme (MCS) subfield, the reserved subfield, and the trigger dependent user info subfield.

The Association Identifier field is used to indicate the association identifier of the station corresponding to the user information field. The Resource Block Allocation subfield is used to indicate the RU/MRU (or RU/MRU location) allocated to the station.

In this description, a “field” may also be referred to as a “field,” “information,” or the like, and a “subfield” may be referred to as a “subfield,” “information,” or the like.

The PPDU sent by the station on the dedicated RU/MRU may be an Extremely High Throughput trigger based physical layer protocol data unit (EHT TB PPDU). The function of each field in the PPDU is shown in Table 2. It should be understood that this is only an example. In a standard formulation or actual implementation, the EHT PPDU may additionally include one more field.

Table 2. Function of each field in PPDU Chinese expression Function Legacy Short Training Field (L-STF) Used for PPDU detection, coarse synchronization and automatic gain control Legacy Long Training Field (L-LTF) Used for precise synchronization and channel estimation Legacy Signal Field (L-SIG) Used to carry signaling information related to the PPDU length to ensure coexistence Universal Signal Field (U-SIG) Used to carry signaling for demodulation of subsequent data Extremely High Throughput Short Training Field (EHT-STF) Used to automatically adjust the gain for the subsequent field Extremely High Efficient Long Training Field (EHT-LTF) Used for channel evaluation Data Used to transfer data

With the development of wireless LAN, the data rate requested by a station to perform uplink data transmission increases. How an access point allocates a plurality of resource blocks to a station and specifies a plurality of resource blocks to a station so that the station can perform uplink data transmission using a plurality of resource blocks to increase the data rate becomes a technical problem that needs to be solved urgently.

The present application provides a method for designating resource blocks. In the method, an access point can allocate an MRU to a station. The method for designating resource blocks may also be referred to as a method for designating multi-resource blocks, a method for combining multi-resource blocks, and the like. In the embodiments of the present application, an MRU is assigned to a station using a trigger frame, and a resource block allocation subfield in the trigger frame is intended to implement RU/MRU allocation in a frequency band of 320 MHz. The trigger frame developed in the embodiments of the present application is applicable to a case in the 802.11be (EHT) standard and a future Wi-Fi system in which there is a high uplink transmission bandwidth and the number of types of uplink transmission resource blocks allocated to a station is increased.

Each station corresponds to one resource block allocation subfield. The resource block allocation subfield is divided into two parts. The first part of the bits is used to notify the station of a specific frequency band range, and the second part of the bits is used to notify the MRU entry based on the frequency band range. The entry is an index in the index table or an RU or MRU corresponding to the index, and the second part of the bits can indicate the RU or MRU in the index table. For ease of description, the first part of the bits can be referred to as a frequency band range indicator, and the second part of the bits can be referred to as a resource block indicator. In the standard formulation or actual implementation, the bits are included in the scope of the embodiments of the present application, provided that the bits implement the functions of the first part of the bits and the second part of the bits. The names of the first part of the bits and the second part of the bits are not limited in the embodiments of the present application.

It should be understood that in embodiments of the present application, the frequency range in which the RU in the MRU is located may be different from or the same as the actual frequency range covered by the RU. In embodiments, the frequency range in which the RU is located may be larger, smaller, or the same as the actual frequency range covered by the RU.

The actual frequency range covered by the RU is smaller than the occupied frequency range. For example, the actual frequency range covered by a 484-tone RU is a 40 MHz frequency band, and the 40 MHz frequency band is in the second 80 MHz frequency band in the 320 MHz frequency band range. When the frequency range in which the RU is located is described using the 80 MHz frequency band as the granularity, it can be described as follows: the frequency range in which the 484-tone RU is located, the frequency range, is the second 80 MHz frequency band in the 320 MHz frequency band range.

The actual frequency range covered by the RU is the same as or equal to the occupied frequency range. For example, the actual frequency range covered by a 484-tone RU is 40 MHz, and 40 MHz is the third 40 MHz frequency band in the 320 MHz frequency band range. When the frequency range in which the RU is located is described using 40 MHz as the granularity, it can be described as follows: the frequency range in which the 484-tone RU is located is the third 40 MHz frequency band in the 320 MHz frequency band range.

The actual frequency range covered by the RU is the same as or equal to the occupied frequency range. For example, the actual frequency range covered by a 996-tone RU is 80 MHz, and the 80 MHz frequency band is in the second 80 MHz frequency band in the 320 MHz frequency band range. When the frequency range in which the RU is located is described using 80 MHz as the granularity, it can be described as follows: the frequency range in which the 996-tone RU is located is the second 80 MHz frequency band in the 320 MHz frequency band range.

The actual frequency range covered by the RU is larger than the occupied frequency range. For example, the actual frequency range covered by a 996-tone RU is 80 MHz, and the 80 MHz frequency band is the second 80 MHz frequency band in the 320 MHz frequency band range. When the frequency range in which the RU is located is described using 40 MHz as the granularity, it can be described as follows: the frequency range in which the 996-tone RU is located is the third (or fourth) 80 MHz frequency band in the 320 MHz frequency band range.

For MRU, the frequency band range indicator and the frequency band range may be in a relationship described in any of the following aspects:

According to the first aspect, the frequency band range indicator is used to indicate the frequency band range in which the smallest RU in the MRU is located.

That is, the resource block pointer is used to indicate the MRU allocated to the station, and the frequency band range pointer is used to indicate the frequency band range in which the smallest RU in the MRU indicated by the resource block pointer is located; and then the station determines the allocated MRU based on the frequency band range pointer and the resource block pointer.

In another implementation, a resource block pointer is used to indicate a multi-resource unit (MRU) allocated to a station, and a frequency band range pointer is used to indicate a frequency band range in which a RU in the MRU indicated by the resource block pointer is located; and the station determines the allocated MRU based on the frequency band range pointer and the resource block pointer. The RU in the MRU may be the above-mentioned smallest RU in the MRU, the largest RU in the MRU, or a RU of a given size in the MRU. In the following embodiments, a description is provided using the smallest RU as an example. In this implementation, the frequency band range pointer may indicate a frequency band range, and the frequency band range is a frequency band range in which a RU in the MRU is located. In this way, the resource block pointer may indicate a larger number of MRU entries with the same number of bits, or when the resource block pointer must indicate the same number of MRU entries, a smaller number of indices is required, and a larger number of indices can be reserved to indicate other information.

The level of detail used for the frequency band range indicator to indicate the frequency band range in which the RU in the MRU is located may be 40 MHz, 80 MHz, 160 MHz, 240 MHz or 320 MHz. In other words, in an embodiment, the frequency band range indicator is used to indicate the 80 MHz frequency band in which the RU in the MRU is located. In another embodiment, the frequency band range indicator is used to indicate the 40 MHz frequency band in which the RU in the MRU is located. In yet another embodiment, the frequency band range indicator is used to indicate the 160 MHz frequency band in which the RU in the MRU is located. In yet another embodiment, the frequency band range indicator is used to indicate the 240 MHz frequency band in which the RU in the MRU is located. In yet another embodiment, the frequency band range indicator is used to indicate the 320 MHz frequency band in which the RU in the MRU is located.

In the present application, a method 110 for indicating resource blocks is described using an example in which a frequency band range indicator is used to indicate a frequency band of 80 MHz in which an RU in an MRU is located, and a method 120 for indicating resource blocks is described using an example in which a frequency band range indicator is used to indicate a frequency band of 40 MHz in which an RU in an MRU is located. In order to avoid redundancy, another level of granularity of the frequency band range is not described. However, a person skilled in the art can obtain a related embodiment based on this implementation, the method 110 for indicating resource blocks, and the method 120 for indicating resource blocks.

According to the second aspect, the frequency band range indicator is used to indicate a range of frequency bands in a passband that does not belong to the MRU.

In one implementation, a resource block indicator is used to indicate a multi-resource unit (MRU) allocated to a station, and a frequency band range indicator is used to indicate a frequency band range in a bandwidth in which some or all of the RUs other than the MRUs are located; and then the station determines the allocated MRU based on the frequency band range indicator and the resource block indicator.

In another implementation, a frequency band range indicator is used to indicate a frequency band range in a bandwidth, a resource block indicator is used to indicate an MRU allocated to the station, and the MRU includes the remaining RUs in the frequency band range, in a frequency bandwidth different from the frequency band range indicated by the frequency band range indicator; and the station determines the allocated MRU based on the frequency band range indicator and the resource block indicator.

It can be understood that in this implementation, the frequency band range indicator indicates a frequency band range, and the frequency band range is a frequency band range that does not belong to the MRU indicated by the resource block indicator. In this way, the station learns the frequency band range that belongs to the MRU in the bandwidth. In addition, the resource block indicator may indicate a larger number of MRU entries with the same number of bits, or when the resource block indicator must indicate the same number of MRU entries, a smaller number of indices is required, and a larger number of indices can be reserved to indicate other information.

In this application, the method 210 for indicating resource blocks is described using an example in which “a frequency band range indicator is used to indicate a range of frequency bands in a bandwidth in which some or all of the RU resource blocks other than the MRU are located,” and the method 220 for indicating resource blocks is described using an example in which “the MRU includes the remaining RU resource blocks in a range of frequency bands in a bandwidth other than the range of frequency bands indicated by the frequency band range indicator.”

According to the third aspect, the frequency band range indicated by the frequency band range indicator is variable and is of the MRU type indicated by the resource block indicator.

The granularity of the frequency band range indicated by the frequency band range indicator is related to the MRU indicated by the resource block indicator. If necessary, the frequency band range indicator is used to indicate the frequency band range in which the MRU indicated by the resource block indicator is located. Thus, the frequency band range indicated by the frequency band range indicator is variable and does not have the fixed granularity of the frequency band range described in the first aspect.

In this implementation, the frequency band range indicator may indicate the frequency band range in which the MRU indicated by the resource block indicator is located. In this way, the station knows the frequency band range related to the MRU in the bandwidth. In addition, the resource block indicator may indicate more MRU entries with the same number of bits, or when the resource block indicator must indicate the same number of MRU entries, fewer indices are required, and more indices may be reserved to indicate other information.

In the present application, the method 310 for indicating resource blocks is described using an example in which “a frequency band range indicator is used to indicate a frequency band range in which the MRU indicated by the resource block indicator is located.”

It can be learned that in the resource block designation methods in the three preceding aspects, upon receiving the corresponding resource block allocation subfield, the station can learn about the MRU, such as the location of the MRU, by reading the first part of the bits and the second part of the bits.

The present application further provides a method for indicating resource blocks according to a fourth aspect. In this aspect, the first part of the bits and the second part of the bits can be combined into one part for an indicator. That is, when a resource block allocated to a station is indicated, all the bits in the resource block allocation subfield are used for the indicator, and no longer distinguish between the first part of the bits used for indicating the frequency range and the second part of the bits used for the resource block indicator. For example, the resource block allocation subfield corresponding to a station occupies N bits, and the index indicated by the N bits directly represents the absolute location of the RU or MRU resource blocks in the bandwidth; and then the station can learn about the allocated RU/MRU by querying the table based on the index indicated by the N bits. Thus, in the present application, the method 410 for indicating resource blocks is described using an example in which “an index indicated by N bits directly represents the absolute location of an RU or a multi-resource block MRU in the bandwidth.”

Below, with reference to the accompanying drawings, the method 110 of indicating resource blocks, the method 120 of indicating resource blocks, the method 210 of indicating resource blocks, the method 220 of indicating resource blocks, the method 310 of indicating resource blocks and the method 410 of indicating resource blocks are described separately.

Embodiment 1: The method 110 for specifying resource blocks is mainly described in Embodiment 1.

Fig. 6 shows a flow chart of the process flow of the method 110 for designating resource blocks according to this embodiment of the present application. As shown in Fig. 6, the method 110 for designating resource blocks may include, but is not limited to, the following steps.

S111 The access point determines the trigger frame.

The trigger frame includes a resource block allocation subfield used to indicate the resource allocation of the station. The resource block allocation subfield includes a frequency band range indicator and a resource block indicator. The resource block indicator is used to indicate the MRU allocated to the corresponding station. The frequency band range indicator is used to indicate the 80 MHz band in which the smallest RU in the MRU indicated by the resource block indicator is located.

S112 The access point sends a trigger frame.

S113 The station receives a trigger frame from the access point.

S114 The station determines the allocated MRU based on the frequency band indicator and the resource block indicator.

In one implementation, the station determining the allocated MRU based on the frequency band range indicator and the resource block indicator in step S114 includes the following: the station determines the frequency band of 80 MHz indicated by the frequency band range indicator (in other words, the frequency band range indicator may indicate a value, namely 80 MHz, of the frequency band range and a location in the bandwidth), may learn that the smallest RU in the MRU indicated by the resource block indicator is located in the frequency band of 80 MHz, and then learns about the allocated MRU with reference to the index indicated by the resource block indicator.

For example, the MRU indicated by the resource block indicator is a (52+26)-tone RU, and the frequency band range indicated by the frequency band range indicator is the 80 MHz frequency band in which the 26-tone RU in the (52+26)-tone RU is located. Alternatively, the MRU indicated by the resource block indicator is a (106+26)-tone RU, and the frequency band range indicated by the frequency band range indicator is the 80 MHz frequency band in which the 26-tone RU in the (106+26)-tone RU is located. Alternatively, the MRU indicated by the resource block indicator is a (484+242)-tone RU, and the frequency band range indicated by the frequency band range indicator is the 80 MHz frequency band in which the 242-tone RU in the (484+242)-tone RU is located. Alternatively, the MRU indicated by the resource block indicator is a (996+484)-tone RU, and the frequency band range indicated by the frequency band range indicator is the 80 MHz frequency band in which the 484-tone RU in the (996+484)-tone RU is located. Alternatively, the MRU indicated by the resource block indicator is a (2*996+484)-tone RU, and the frequency band range indicated by the frequency band range indicator is the 80 MHz frequency band in which the 484-tone RU in the (2*996+484)-tone RU is located. Alternatively, the MRU indicated by the resource block indicator is a 3×996-tone RU, and the frequency band range indicated by the frequency band range indicator is the 80 MHz frequency band in which one 996-tone RU in the 3×996-tone RU is located. Alternatively, the MRU indicated by the resource block indicator is a (3*996+484)-tone RU, and the frequency band range indicated by the frequency band range indicator is the 80 MHz frequency band in which the 484-tone RU in the (3*996+484)-tone RU is located. Alternatively, the MRU indicated by the resource block indicator is a (996+484+242)-tone RU, and the frequency band range indicated by the frequency band range indicator is the 80 MHz frequency band in which the 242-tone RU in the (996+484+242)-tone RU is located.

It is assumed that the resource block allocation subfield includes 9 bits, and the frequency band range indicator is the first bit and the second bit, designated as B0 and B1, in the resource block allocation subfield. In this case, B0 and B1 indicate 80 MHz in the 320 MHz frequency band range. It is assumed that Table 3 shows the 80 MHz frequency band ranges that must be indicated by the frequency band range indicator (B0 and B1) to indicate the 80 MHz frequency band in which the smallest RU in the MRU indicated by the resource block indicator is located. The 80 MHz frequency bands in the 320 MHz frequency band range are sequentially designated as the first 80 MHz frequency band, the second 80 MHz frequency band, the third 80 MHz frequency band, and the fourth 80 MHz frequency band in ascending frequency order.

As shown in Table 3, when B0B1 is 00, it indicates that the frequency band range indicated by the frequency band range indicator is the first 80 MHz band in the 320 MHz band; when B0B1 is 01, it indicates that the frequency band range indicated by the frequency band range indicator is the second 80 MHz band in the 320 MHz band; when B0B1 is 10, it indicates that the frequency band range indicated by the frequency band range indicator is the third 80 MHz band in the 320 MHz band; and when B0B1 is 11, it indicates that the frequency band range indicated by the frequency band range indicator is the fourth 80 MHz band in the 320 MHz band.

Table 3. Frequency band ranges that must be indicated by the frequency band range indicator (B0 and B1) B0 and B1 in the resource block allocation subfield
(B0 and B1 of RU Allocation subfield) Meaning 00 First 80 MHz band in 320 MHz range 01 Second 80 MHz band in 320 MHz range 10 Third band 80 MHz in the 320 MHz range 11 Fourth 80 MHz in the 320 MHz range

The resource block indicator is the third to ninth bits, designated as B2-B8, in the resource block allocation subfield. In this case, with reference to the frequency band indicator and the RU or MRU to be indicated, the RU or MRU to be indicated by the resource block indicator can be given in Table 4. The values from B2 to B8 are given in the first column in Table 4, and can be referred to as the indices indicated by the resource block indicator. The second column of Table 4 indicates the size of the resource blocks corresponding to each index. The third column of Table 4 indicates the number of indices, namely the number of entries corresponding to each size of the resource blocks. In Table 4, the corresponding RU or MRU can be determined with reference to the frequency band indicator for each index.

Table 4. Records that must be pointed to by the resource block pointer (B2-B8) B8-B2 of RU Allocation subfield Resource Block Size (RU size) Number of entries 0-35 26-tone RU 36 36-51 52-tone RU 16 52-59 106-tone RU 8 60-63 242-tone RU 4 64-65 484-tone RU 2 66 996-tone RU 1 67 2×996-tone RU 1 68 4×996-tone RU 1 69-80 (52+26)-tone RU 12 81-88 (106+26)-tone RU 8 89-92 (484+242)-tone RU 4 93-94 (996+484)-tone RU 2 95-98 (2×996+484)-tone RU 4 99-101 (3×996)-tone RU 3 102-103 (3×996+484)-tone RU 2 104-107 (996+484+242)-tone RU 4

As shown in Fig. 3, there are 36 locations for a 26-tone RU in the 80 MHz band range. Thus, based on the 80 MHz band range indicated by the band range indicator, the resource block indicator indicates one of the indices 0-35 shown in Table 4 to indicate one corresponding 26-tone RU in the 80 MHz band range.

If necessary, in 802.11ax, there are 37 locations for a 26-tone RU in the 80 MHz frequency band. Therefore, in the table corresponding to the resource block index in 802.11ax, there are 37 indices, namely, index 0 - index 36, which are used to indicate a 26-tone RU. Therefore, in the present application, in order to implement better compatibility with the 802.11ax device, index 36 in Table 4 may be reserved and not used to indicate a 52-tone RU, in other words, an index starting with index 37 is used to indicate another RU/MRU. Therefore, in this embodiment of the present application, the 802.11ax device can continue to read the corresponding entry in Table 4, so that the technical solution provided in this embodiment of the present application is compatible with the existing standard.

As shown in Fig. 3, there are 16 locations for a 52-tone RU in the 80 MHz frequency band range. Thus, based on the 80 MHz frequency band range indicated by the frequency band range indicator, the resource block indicator indicates one of the indices 36 to 51 shown in Table 4 to indicate one corresponding 52-tone RU in the 80 MHz frequency band range.

As shown in Fig. 3, there are eight locations for a 106-tone RU in the 80 MHz frequency band range. Thus, based on the 80 MHz frequency band range indicated by the frequency band range indicator, the resource block indicator indicates one of the indices 52-59 shown in Table 4 to indicate one corresponding 52-tone RU in the 80 MHz frequency band range.

As shown in Fig. 3, there are four locations for a 242-tone RU in the 80 MHz band range. Thus, based on the 80 MHz band range indicated by the band range indicator, the resource block indicator indicates one of the indices 60 to 63 shown in Table 4 to indicate one corresponding 242-tone RU in the 80 MHz band range.

As shown in Fig. 3, there are two locations for the 484-tone RU in the 80 MHz frequency band range. Thus, based on the 80 MHz frequency band range indicated by the frequency band range indicator, the resource block indicator indicates one of the indices 64 and 65 shown in Table 4 to indicate one corresponding 484-tone RU in the 80 MHz frequency band range.

The frequency band indicator may indicate the 80 MHz frequency band in which the 996-tone RU is located. Thus, the resource block indicator requires only one index 66 to indicate the 996-tone RU. Accordingly, the station determines, based on the range indicator, the 80 MHz frequency band in which the smallest RU in the MRU is located, and then the station can know, with reference to the information indicating that the RU size corresponding to the index 66 indicated by the resource block indicator is a 996-tone RU, that the 996-tone RU corresponding to 80 MHz is an allocated RU.

A method for indicating one RU has been described above, and a method for indicating an MRU will be described below. In the schematic diagrams of the MRU shown in Fig. 7 to Fig. 14 in this specification, each MRU in each accompanying drawing includes an RU shaded with vertical lines. In other words, an RU shaded with vertical lines represents a RU included in the MRU. For example, in the three (26+52)-tone RUs shown in Fig. 7, the (26+52)-tone RU shown in the first row includes a second 26-tone RU shaded with vertical lines and a second 52-tone RU shaded with vertical lines. In addition, in this specification, “*” and “×” represent the same multiplication operation and are not distinguished. For example, a 2*996-tone RU can be represented as a 2×996-tone RU.

A 2*996-tone RU cannot overlap two 160 MHz frequency band ranges, in other words, the frequency band range in which a 2*996-tone RU is located can only be a 160 MHz primary channel or a 160 MHz secondary channel. Therefore, the frequency band range indicator can indicate the 80 MHz frequency band in which one 996-tone RU is located in a 2*996-tone RU, and the location of another 996-tone RU in a 2*996-tone RU can be learned. Thus, the resource block indicator requires only one index 67 to indicate a 2×996-tone RU with a reference to the frequency band range indicator. Accordingly, the station determines, based on the frequency band indicator, the 80 MHz frequency band in which the smallest RU in the MRU is located, and then the station can know, with reference to the information indicating that the RU size corresponding to the index, for example, 67, indicated by the resource block indicator is a 2*996-tone RU, that the 160 MHz primary channels or 160 MHz secondary channels in which 80 MHz are located are allocated to the 2*996-tone RU.

There is only one 4×996-tone RU in the 320 MHz bandwidth. Therefore, the resource block indicator can indicate one index 68, so that the station can know that the allocated RU is a 4×996-tone RU.

There are three combinations shown in Fig. 7 for a (52+26)-tone RU in a 20 MHz bandwidth: a (52+26)-tone RU including a second 52-tone RU and a second 26-tone RU in a 20 MHz bandwidth, a (52+26)-tone RU including a second 52-tone RU and a fifth 26-tone RU in a 20 MHz bandwidth, and a (52+26)-tone RU including a third 52-tone RU and an eighth 26-tone RU. No combination can be made for a (52+26)-tone RU by crossing 20 MHz, and thus there are 12 (namely, 4*3) combinations for a (52+26)-tone RU in a 80 MHz bandwidth. Thus, based on the 80 MHz frequency band in which the 26-tone RU is located and which is indicated by the frequency band range indicator, the resource block indicator must additionally indicate one of the indices 69-80 to indicate one corresponding (52+26)-tone RU in the 80 MHz frequency band. The indices 69-80 in ascending order may be in one-to-one correspondence with the starting frequencies of the 12 (52+26)-tone RUs in ascending order.

There are two combinations shown in Fig. 8 for a (106+26)-tone RU in a 20 MHz frequency band: a (106+26)-tone RU including the first 106-tone RU and the fifth 26-tone RU in a 20 MHz frequency band, and a (106+26)-tone RU including the second 106-tone RU and the fifth 26-tone RU in a 20 MHz frequency band. Thus, there are eight (namely 4*2) combinations for a (106+26)-tone RU in a 80 MHz frequency band. Thus, based on the 80 MHz frequency band in which the 26-tone RU is located and which is indicated by the frequency band range indicator, the resource block indicator must additionally indicate one of the indices 81-88 to indicate one corresponding (106+26)-tone RU in the 80 MHz frequency band. The indices 81-88 in ascending order may be in one-to-one correspondence with the starting frequencies of eight (106+26)-tone RUs in ascending order.

There are four combinations shown in Fig. 9 for (484+242)-tone RUs in the 80 MHz frequency band: a (484+242)-tone RU including a second 484-tone RU and a first 242-tone RU in the 80 MHz frequency band, and a (484+242)-tone RU including a second 484-tone RU and a second 242-tone RU in the 80 MHz frequency band, a (484+242)-tone RU including a first 484-tone RU and a third 242-tone RU in the 80 MHz frequency band, and a (484+242)-tone RU including a first 484-tone RU and a fourth 242-tone RU in the 80 MHz frequency band. Thus, based on the 80 MHz frequency band in which the 242-tone RU is located and which is indicated by the frequency band range indicator, the resource block indicator must additionally indicate one of the indices 89-92 to indicate one corresponding (484+242)-tone RU in the 80 MHz frequency band. The indices 89-92 in ascending order may be in one-to-one correspondence with the starting frequencies of four (484+242)-tone RUs in ascending order.

The (996+484)-tone RU may be located in the primary 160 MHz channel or in the secondary 160 MHz channel, and thus, Fig. 10 shows four combinations for the (996+484)-tone RU in the 160 MHz frequency band range: a (996+484)-tone RU including a first 484-tone RU and a second 996-tone RU in the 160 MHz frequency band range, and a (996+484)-tone RU including a second 484-tone RU and a second 996-tone RU in the 160 MHz frequency band range, a (996+484)-tone RU including a third 484-tone RU and the first 996-tone RU in the 160 MHz frequency band range, and (996+484)-tone RU, including the fourth 484-tone RU and the first 996-tone RU in the 160 MHz frequency band. Thus, based on the 80 MHz frequency band in which the 484-tone RU is located and which is indicated by the frequency band range indicator, the station can directly know the location of the 996-tone RU in the 160 MHz frequency band. Therefore, the resource block indicator must additionally indicate one of the indices 93 and 94 to indicate the location of the 484-tone RU in the (996+484)-tone RU in the 80 MHz frequency band. There are two locations for the 484-tone RU in the 80 MHz frequency band, and thus the resource block indicator corresponds to two entries.

Thus, for the access point side, the frequency band indicator may indicate the 80 MHz frequency band in which the 484-tone RU in the (996+484)-tone RU is located, and the resource block indicator may indicate index 93 or index 94. Accordingly, after receiving the resource block allocation subfield, the station can determine the allocated (996+484)-tone RU based on the 80 MHz frequency band indicated by the frequency band indicator and with reference to the location, in the 80 MHz frequency band, of the 484-tone RU corresponding to the index value indicated by the resource block indicator.

For example, it is assumed that the index 93 corresponds to the first 484-tone RU in the 80 MHz frequency band indicated by the frequency band range indicator, the index 94 corresponds to the second 484-tone RU in the 80 MHz frequency band indicated by the frequency band range indicator, and the 160 MHz frequency band shown in Fig. 10 is a 160 MHz primary channel in the 320 MHz frequency band. Thus, with reference to Table 3 and Table 4, in the resource block allocation subfield corresponding to the first (996+484)-tone RU in the first row shown in Fig. 10, the frequency band indicator is 00, and the resource block indicator is 93; in the resource block allocation subfield corresponding to the second (996+484)-tone RU in the first row shown in Fig. 10, the frequency range indicator is 00, and the resource block indicator is 94; in the resource block allocation subfield corresponding to the first (996+484)-tone RU in the second row shown in Fig. 10, the frequency range indicator is 01, and the resource block indicator is 93; and in the resource block allocation subfield corresponding to the second (996+484)-tone RU in the second row shown in Fig. 10, the frequency range indicator is 01, and the resource block indicator is 94.

The (2*996+484)-tone RU is transmitted in the 240 MHz bandwidth range and thus can only be present in the 240 MHz bandwidth range formed by puncturing the lowest or highest 80 MHz bandwidth in the 320 MHz bandwidth range. Fig. 11 shows six combinations for a (2*996+484)-tone RU in the 240 MHz frequency band range: a (2*996+484)-tone RU including a first 484-tone RU, a second 996-tone RU and a third 996-tone RU in the 240 MHz frequency band range, a (2*996+484)-tone RU including a second 484-tone RU, a second 996-tone RU and a third 996-tone RU in the 240 MHz frequency band range, a (2*996+484)-tone RU including a third 484-tone RU, a first 996-tone RU and a third 996-tone RU in the 240 MHz frequency band range, a (2*996+484)-tone RU, including the fourth 484-tone RU, the first 996-tone RU and the third 996-tone RU in the frequency band range of 240 MHz, a (2*996+484)-tone RU, including the fifth 484-tone RU, the first 996-tone RU and the second 996-tone RU in the frequency band range of 240 MHz and a (2*996+484)-tone RU, including the sixth 484-tone RU, the first 996-tone RU and the second 996-tone RU in the frequency band range of 240 MHz. Based on the 80 MHz frequency band in which the 484-tone RU in the (2*996+484)-tone RU is located and which is indicated by the frequency band range indicator, there are two possible locations of the 484-tone RU in the (2*996+484)-tone RU in the 80 MHz frequency band, and there are also two possible locations for the 240 MHz frequency band in which the (2*996+484)-tone RU is located. Therefore, the resource block indicator must additionally indicate indices 95-98 to indicate the corresponding location of the (2*996+484)-tone RU.

In another implementation, based on the 80 MHz frequency band in which the 484-tone RU in the (2*996+484)-tone RU is located and which is indicated by the frequency band range indicator, there are two possible locations for the 484-tone RU in the (2*996+484)-tone RU in the 80 MHz frequency band, and there are three possible locations for the 240 MHz frequency band in which the (2*996+484)-tone RU is located. Thus, the resource block indicator must additionally indicate indices 95-100 to indicate the corresponding location of the (2*996+484)-tone RU.

There are four combinations shown in Fig. 12 for 3*996-tone RU in the 320 MHz frequency band range: a combination of the second 996-tone RU - the fourth 996-tone RU in the 320 MHz frequency band range, a combination of the first 996-tone RU, the third 996-tone RU and the fourth 996-tone RU in the 320 MHz frequency band range, a combination of the first 996-tone RU, the second 996-tone RU and the fourth 996-tone RU in the 320 MHz frequency band range, and a combination of the first 996-tone RU - the third 996-tone RU in the 320 MHz frequency band range. Thus, based on the 80 MHz frequency band in which the 996-tone RU is located and which is indicated by the frequency band range indicator, there are three options for the remaining two 996-tone RUs in the 3*996-tone RU in the 320 MHz frequency band range. Thus, the resource block indicator must additionally indicate one of the indices 99-101 to indicate the location of the remaining two 996-tone RUs combined with the 996-tone RU corresponding to 80 MHz in the 320 MHz frequency band range. The indices 99-101 in ascending order may be in one-to-one correspondence with the starting frequencies, in ascending order, of the three 3*996-tone RUs, which exist when there are three options for the remaining two 996-tone RUs.

For example, the MRU size indicated by the resource block indicator is a 3×996-tone RU, and the indices indicated by the resource block indicator are in one-to-one correspondence with the starting frequencies of additional combinations of the 3*996-tone RU in ascending order. If the access point allocates the 3×996-tone RU shown in the first row of Fig. 12 to a station, it can be known, with reference to Table 3, that the value of B0B1 corresponding to the station should be set to 01. It is assumed that the index 99 in Table 4 corresponds to the 3*996-tone RU shown in the third row of Fig. 12, the index 100 corresponds to the 3×996-tone RU shown in the second row of Fig. 12, and the index 101 corresponds to the 3×996-tone RU shown in the first row of Fig. 12. In this case, B2-B8 needs to be set to 101. Then the station knows that the RU size corresponding to the index indicated by B2-B8 is a 3*996-tone RU, the index indicated by B2-B8 is 101, and B0B1 indicates that the 996-tone RU in the 3*996-tone RU is the second 996-tone RU in the 320 MHz frequency band. Then the station can know that the allocated 3×996-tone RU is the 3×996-tone RU shown in the first row of Fig. 12.

There are eight combinations shown in Fig. 13 for a (3*996+484)-tone RU in the 320 MHz band: a combination of one of the eight 484-tone RUs in the 320 MHz band and three other 996-tone RUs in a band range other than the 80 MHz band in which the 484-tone RU is located. Thus, based on the 80 MHz band in which the 484-tone RU is located and which is indicated by the band range indicator, there is only one option for the other three 996-tone RUs in the 320 MHz band, but there are two locations for the 484-tone RU in the 80 MHz band. Thus, the resource block indicator must additionally indicate one of the indices 102 and 103 to indicate one location of the 484-tone RU in the 80 MHz band. The indices 102 and 103 in ascending order can be in one-to-one correspondence with the starting frequencies of the 484-tone RU at two locations in the 80 MHz frequency band in ascending order.

There are four combinations shown in Fig. 14 for the (484+242)-tone RU in the 80 MHz band in the 160 MHz band range, and thus there are eight combinations for the (996+484+242)-tone RU in the 160 MHz band range. Thus, based on the 80 MHz band in which the 242-tone RU is located and which is indicated by the band range indicator, there is only one option for the 996-tone RU in a band range that is different from the 80 MHz band in the 160 MHz band range, but there are four locations for the 242-tone RU in the 80 MHz band. Thus, the resource block indicator must additionally indicate one of the indices 104-107 to indicate one location of the 242-tone RU in the 80 MHz band. Indexes 104-107 in ascending order can be in one-to-one correspondence with the starting frequencies of the 242-tone RU at four locations in the 80 MHz frequency band in ascending order.

From the above analysis, it can be concluded that the frequency band range in which the smallest RU in the MRU is located can be further notified using the frequency band range indicated by the frequency band range indicator, and thus this allows the resource block indicator to use fewer indices to indicate different possible locations of the MRU. For example, as shown in Table 4, the resource block indicator requires only four indices to respectively indicate eight combinations of (996+484+242)-tone RUs. As another example, as shown in Table 4, the resource block indicator requires only two indices to respectively indicate eight combinations of (3*996+484)-tone RUs.

Compared with the method in which the frequency band range indicator indicates only the lowest 80 MHz frequency band that belongs to the MRU, the frequency band range indicator in the resource block indicating method 110 can carry more information, in other words, can carry the 80 MHz frequency band in which the smallest RU in the MRU is located. For example, if the frequency band range indicator indicates only the lowest 80 MHz band that belongs to the MRU, four indices are required for the resource block indicator to respectively indicate the four (996+484)-tone RU combinations shown in Fig. 10. If the frequency band indicator is used to indicate the 80 MHz frequency band in which the smallest RU in the MRU is located, the resource block indicator requires only two indices to indicate all combinations of (996+484)-tone RUs, as shown in Table 4. Thus, the frequency band indicator in the resource block indicator method 101 can carry more information, and this allows the resource block indicator to use fewer indices to properly indicate the various possible MRU locations.

An embodiment of the present application further provides a technical solution and relates to another configuration of the RU Allocation subfield in the User Info field in the Trigger frame. As described in the previous embodiment, the RU Allocation subfield is designed using 9 bits and is specifically implemented as a 7-bit RB indicator+2-bit band range indicator. Here, 2 bits are a band range indicator and are used to indicate the location of specific 80 MHz bands. The RB indicator, which includes the remaining 7 bits, is used to indicate a specific location of the RU/MRU in the case of a specific 80 MHz band defined by 2 bits.

For example, as shown in Table 3, 2 bits are used to indicate the location of a specific 80 MHz on the absolute frequency, where 00 indicates the lowest 80 MHz band, 01 indicates the second lowest 80 MHz band, 10 indicates the highest 80 MHz band, and 11 indicates the highest 80 MHz band.

In order to help the receiving device better identify that the corresponding user information field is the HE/EHT user information field, to ensure compatibility with the previous generation device (11ax) in the user information field, etc., a 7-bit + 2-bit mode is provided. The primary/secondary channel location indication method is used for 2 bits, and 2 bits indicate the location of the 80 MHz frequency band in which the smallest RU in RU/MRU is located.

In the above case, when the primary/secondary channel location indication method is used in the 80 MHz band, there may be the following few specific configurations for the RU allocation subfield.

The advantages of using the primary/secondary channel location indication method are further described below. The 2 bits in the primary/secondary channel indication method are represented here as BS and B0 (which may be represented by other letters, such as B0B1 in the previous embodiment, which is only an example here), where B can be regarded as a bit and S can be regarded as a 160 MHz segment. Here, BS represents a 160 MHz primary channel or a 160 MHz secondary channel. In the case of P160 MHz, B0 represents a 80 MHz primary channel and an 80 MHz secondary channel. In the case of S160 MHz, B0 represents a 80 MHz lower frequency band and an 80 MHz upper frequency band. For example, the form of the 2-bit designator (BSB0) may be as follows: 00 indicates the Primary channel of 80 MHz (P80MHz), 01 indicates the Secondary channel of 80 MHz (S80MHz), 10 indicates the lower band of 80 MHz, which is also referred to as the third band of 80 MHz, in the secondary channel of 160 MHz (S160MHz), and 11 indicates the upper band of 80 MHz, which is also referred to as the fourth band of 80 MHz, in the secondary channel of 160 MHz (S160MHz). Here, the correspondences between the meaning of the 2 bits and the value are simply examples. In another implementation, the correspondences between the meaning of the 2 bits and the semantic value may be interchanged.

The 11be device can receive the 11be user information field or the 11ax user information field. When the primary/secondary channel indication case is used, advantages can be obtained for identifying the user information field. For example, in the common field part of the trigger frame, a 4-bit raster form can be used to respectively indicate the primary 80 MHz channel, the secondary 80 MHz channel, the third 80 MHz frequency band, and the fourth 80 MHz frequency band (or 2 bits can be used to indicate only the primary 80 MHz channel and the secondary 80 MHz channel). In such an architecture, the 11be device can learn, using the BS and B0, the 80 MHz frequency band to which all or some of the RUs allocated to the 11be device belong (this is because, in the indication method in this embodiment, the 80 MHz frequency band in which the smallest RU in the RU/MRU is located can be indicated), and then determine, using the HE/EHT pointer, whether the read user information field is the 11ax user information field or the 11be user information field. For example, if the bitmap has a value of 0011, this indicates that the primary/secondary channel of 80 MHz is intended for the ax user information field, and the secondary channel of 160 MHz is intended for the be user information field. In this case, the 11be receiving device can determine a specific 80 MHz frequency band, for example, the secondary channel of 80 MHz, using the BS and B0. The 80 MHz bandwidth specifies the user information field ax, and thus the 11be device can perform interpretation based on the user information field ax. Finally, the setup method in which the 80 MHz primary/secondary channel is used for BS and B0 allows the 11be device to identify HE/EHT TB PPDU.

It should be noted that 0 is usually set at the BS location in the 11ax user information field (possibly a reserved B39 field). The 11ax user information field is located in the primary 160 MHz channel, so BS must be 0, and the primary 160 MHz channels are considered by default. In addition, B0 is at the same location in the 11ax user information field and in the 11be user information field. Thus, when an 11be device reads a user information field that is not known to be an HE/EHT user information field, HE/EHT can be distinguished by BS and B0 and by referring to the above-mentioned HE/EHT x-bit map. When the user information field 11be indicates the primary/secondary channel of 80 MHz, BS-B0 may be equal to 00 or 01, and when the user information field 11ax indicates the primary/secondary channel of 80 MHz, BS-B0 is equal to 00 or 01. Thus, mutual compatibility is realized. In addition, BS and B0 in the user information field 11be may indicate 10 and 11, which indicates the frequency band of 80 MHz in the secondary channel of 160 MHz.

In embodiment (1), a 2-bit correspondence table between the primary/secondary channel pointer and the absolute pointer is shown.

In embodiment (1), the correspondence diagram shown in Table 4(1) is provided. Table 4(1) shows the correspondence between four primary/secondary channel cases (a, b, c and d), which relate to the location of the 80 MHz primary channel in the 320 MHz bandwidth range and which are indicated by 2 bits and the 80 MHz bandwidth in absolute frequency indicated by 2 bits. The absolute frequency here represents the absolute location of specific 80 MHz frequency bands in the entire 320 MHz bandwidth. In case a, there is a correspondence with the distribution of locations at absolute frequency, i.e., the 80 MHz primary channel is in the lower 80 MHz frequency band at absolute frequency. In case b, the 80 MHz primary channel is in the second lowest 80 MHz frequency band at absolute frequency. In case c, the 80 MHz primary channel is in the second location at absolute frequency 80 MHz. In case d, the 80 MHz primary channel is the highest 80 MHz bandwidth at absolute frequency. Each row in Table 4(1) indicates the values indicated by the 80 MHz bandwidth at absolute frequency and corresponding to four cases of primary/secondary channel allocation. For example, in the first row, 00 at absolute frequency corresponds to a0, b1, c2 and d2 (that is, the value 00 in case a corresponds to the absolute location 00, the value 01 in case b corresponds to the absolute location 00, the value 10 in case c corresponds to the absolute location 00, and the value 10 in case d corresponds to the absolute location 00). It should be noted that the values of 2 bits and the values indicated by 2 bits are just examples here. In a specific implementation, there may be a different correspondence, but there is a mapping relationship between the primary/secondary channel allocation case and the value indicated by the 80 MHz bandwidth at absolute frequency.

Thus, if the receiving terminal device knows a case, for example, case c, of the device where the received 2-bit pointer is c3 (11), c3 needs to correspond only to the absolute location 01, and then the finally allocated RU/MRU can be obtained by querying table 4 with reference to the 7-bit resource block pointer in the previous embodiment. This is equivalent to having an operation of switching the receiving terminal device from a relative location to an absolute location. The receiving terminal device here may be an STA without an AP.

Table 4(1), which shows the 2-bit correspondence between the primary/secondary channel indicator and the absolute frequency indicator, is as follows.

Table 4(1) Absolute frequency Case a for 320 MHz (case a for 320 MHz) Case b for 320 MHz (case b for 320 MHz) Case c for 320 MHz (case c for 320 MHz) Case d for 320 MHz (case d for 320 MHz) The lowest band is 80 MHz (00) a0 (00, primary channel 80) b1 (01, secondary channel 80) c2 (10, 3rd band 80 MHz) d2 (10, 3rd band 80 MHz) The second lowest channel band is 80 MHz (01) a1 (01, secondary channel 80) b0 (00, primary channel 80) c3 (11, 4th band 80 MHz) d3 (11, 4th band 80 MHz) The second highest channel band is 80 MHz (10) a2 (10, 3rd band 80 MHz) b2 (10, 3rd band 80 MHz) c0 (00, primary channel 80) d1 (01, secondary channel 80) Highest Band 80 MHz (11) a3 (11, 4th band 80 MHz) b3 (11, 4th band 80 MHz) c1 (01, secondary channel 80) d0 (00, primary channel 80)

Note: BS and B0 in this document may indicate the 80 MHz frequency band in which the smallest RU in an MRU or RU is located, and the primary/secondary location indication method is used. For example, a 3*996-tone RU includes a (2*996+996)-tone RU. In this case, the location of the 80 MHz frequency band in which the 996-tone RU is located may be indicated here. As another example, for a (3*996+484)-tone RU, the location of the 80 MHz frequency band in which the 484-tone RU is located may be indicated here.

As described above, in the RU allocation subfield, 2 bits may be used to indicate the location of a specific 80 MHz band. The form of the designator may be as follows: 00 indicates the primary 80 MHz channel, 01 indicates the secondary 80 MHz channel, 10 indicates the third 80 MHz band (the lower 80 MHz band in S160), and 11 indicates the fourth 80 MHz band (the upper 80 MHz band in S160).

In this embodiment of the present application, N is used to represent a ranking of 0, 1, 2 or 3 absolute frequencies corresponding to a frequency band of 80 MHz, when 2 bits in the RU allocation subfield indicate the location of a specific frequency band of 80 MHz. Here, 0, 1, 2 and 3 respectively represent the lowest frequency band of 80 MHz, the second lowest frequency band of 80 MHz, the second highest frequency band of 80 MHz and the highest frequency band of 80 MHz. N can be used to calculate the actual location of the RU in the frequency domain range.

If the 2-bit absolute frequency indicator in Table 4(1) is represented by X1 and X0, there is the following correspondence: N=2*X1+X0. If the mapping relationship between N and each of BS and B0 is expressed as a table, Table 4(1) can be equivalently expressed as follows. In other words, Table 4-A is an equivalent expression form of Table 4(1) and can be obtained from Table 4(1).

Table 4-A N Case a for 320 MHz (case a for 320 MHz) Case b for 320 MHz (case b for 320 MHz) Case c for 320 MHz (case c for 320 MHz) Case d for 320 MHz (case d for 320 MHz) 0 a0 (00, primary channel 80) b1 (01, secondary channel 80) c2 (10, 3rd strip 80 MHz) d2 (10, 3rd stripe 80 MHz) 1 a1 (01, secondary channel 80) b0 (00, primary channel 80) c3 (11, 4th stripe 80 MHz) d3 (11, 4th stripe 80 MHz) 2 a2 (10, 3rd lane 80 MHz) b2 (10, 3rd strip 80 MHz) c0 (00, primary channel 80) d1 (01, secondary channel 80) 3 a3 (11, 4th lane 80 MHz) b3 (11, 4th strip 80 MHz) c1 (01, secondary channel 80) d0 (00, primary channel 80)

Table 4-A may alternatively be expressed as Table 4-B (the two tables are completely equivalent except that the tables are expressed differently, in other words, Table 4-B is an equivalent form of expression of Table 4(1) or Table 4-A, and can be derived from Table 4(1) or Table 4-A).

Table 4-B

The following describes two design methods for compiling Table 4(1), Table 4-A, or Table 4-B, namely, methods concerning how to express the relationship between each of BS and B0 and each of X1 and X0, and the relationship between N and each of BS and B0 using a formula. In other words, the following formula is an equivalent form of expression of Table 4(1), Table 4-A, or Table 4-B.

Method 1 uses the 80 MHz and 160 MHz primary and secondary channel locations, and method 2 uses the a/b/c/d split in various cases.

Method 1: the formula for the relationship N=function(BS, B0, C80, C160) is calculated.

The following corresponding formulas can be obtained.

If there is [P80 S80] in ascending frequency order, C80=0. Otherwise, C80=1 (in this case it is [S80 P80]).

C80 specifies the location relationship between the absolute frequency and each of the primary 80 MHz channel and the secondary 80 MHz channel (P80 S80). If the frequency of the primary 80 MHz channel is lower than the frequency of the secondary 80 MHz channel, C80=0. Otherwise, C80=1, in which case the expression [S80 P80] is satisfied.

If there is [P160 S160] in ascending frequency order, C160=0. Otherwise, C160=1 (in this case there is [S160 P160]).

C160 describes the location relationship between the absolute frequency and each of the primary 160 MHz channel and the secondary 160 MHz channel (P160 S160). If the frequency of the primary 160 MHz channel is lower than the frequency of the secondary 160 MHz channel, C160=0. Otherwise, C160=1, and the expression [S160 P160] is satisfied.

When BS=0, it indicates that the location is located in the primary 160 MHz channel, and when BS=1, it indicates that the location is located in the secondary 160 MHz channel.

In this case, the following formula relationships may be present between each of BS and B0 and each of X1 and X0 (XOR indicates the exclusive OR operation, and the horizontal line above the parameter indicates the inverse operation).

X1 can be calculated as follows: X1=XOR(BS, C160).

The method for calculating X0 is as follows.

When C80 is 0, X0=B0.

When C80 is 1:

when BS is 1, X0=B0 (X0=XOR(B0, )).

when BS is 0, X0= (X0=XOR(B0, )).

In any case X0=XOR(B0, ), and thus X0 can be written in the following form.

Method 1 of recording

If C80=1, X0=XOR(B0, ). Otherwise X0=B0.

Method 2 of recording

If C80=1 and BS=0, X0= . Otherwise X0=B0.

Method 3 recording

X0=C80*XOR(B0, )+ *B0.

N=2*X1+X0, and thus the relationship between N and each of BS and B0 can be further expressed. For example, when notation method 3 is replaced by N, N=2*X1+X0=2*XOR(BS, C160)+C80*XOR(B0, )+ *B0.

Method 2: the formula of the relationship of N=function(BS, B0, case a/b/c/d) is calculated.

As described above, the relationships between N and each of BS and B0 in different cases are summed up, and the following formulas are available.

In case a, N=2*BS+B0.

In case b, , N=2*BS+XOR(B0, ).

In case of N=2* +B0.

In case d N=2* +XOR(B0, ).

For the expression on the right side, the first element refers to X1, and the second element refers to X0.

In conclusion, it should be noted that the method 1 and the method 2 provide methods for calculating X1 and X0 (methods for obtaining X1 and X0 based on BS and B0), and also provide methods for calculating N based on BS and B0. Although the values of N specified in the formula method are 0, 1, 2, and 3, which correspond to the order from the lowest frequency band of 80 MHz to the highest frequency band of 80 MHz, other rankings are also applicable. For example, when 1, 2, 3, and 4 are used to represent the ranking, N may be equal to 2*X1+X0+1, and BS and B0 may be replaced by X1 and X0.

Based on the technical solution described above, the transmitting terminal device indicates the location of a specific 80 MHz frequency band using 2 bits (BS and B0) in the RU allocation subfield. The receiving terminal device obtains, based on the 2 bits (BS and B0) in the RU allocation subfield and the above table or the conversion relationship in the formula, an absolute frequency indicated by X1 and X0 corresponding to the specific 80 MHz frequency band in the 320 MHz frequency band range, or obtains a ranking N of an absolute frequency corresponding to the specific 80 MHz frequency band in the 320 MHz frequency band range. In one implementation of this embodiment of the present application, the RU/MRU allocation indicator can be implemented using a minimum amount of overhead data of the RU allocation subfield indicator.

Embodiment (2): Table 4(1) in embodiment (1) is directly integrated into table 4(2).

In order to further facilitate reading for the device, the 2-bit pointer in the primary/secondary channel location indication method can be directly included in the 9-bit absolute location indication table. That is, the 2-bit absolute location value of 80 MHz in the original absolute location table can be replaced with the corresponding relative location value. As shown in the table in embodiment (1), in the first row, the lowest frequency band of 80 MHz (00 in the absolute location) corresponds to a0, b1, c2 and d2. A similar case is shown in another row. In this way, the device can directly read table 4(2), and can finally obtain the allocated RU/MRU without reading the resource block pointer after performing the mapping and conversion of the bit value.

Based on the above, the 2-bit pointer in the 9-bit primary/secondary channel location indication method can be shown in Table 4(2).

In the primary/secondary channel location indication method, a 2-bit indicator can indicate the 80 MHz location where the smallest RU in RU/MRU is located.

Embodiment (3): In another embodiment, table 4(2) may be represented as four tables.

Based on the correspondence in Table 4(1), Table 4(2) can be divided into the following four tables: Table 4(2a), Table 4(2b), Table 4(2c), and Table 4(2d). The tables are tables each of which includes only case a, case b, case c, or case d, and in another case, one table lacks the indicator BS and B0.

Table 4(2a) is given for case a.

Embodiment (4): Method of indicating a 2-bit location pointer + 7-bit table pointer

This is another technical solution for indicating the RU allocation subfield using a table, that is, only the 7-bit indication method is used to indicate a specific RU/MRU in the case of the 80 MHz band location determined by the BS and B0 bits. (3*996+484)-tone MRU is used as an example. When the 7-bit indicator is 105 (B7-B1), a total of four MRU cases are possible.

MRU 1: RU 2 (484T)+RU 2 (996T)+RU 2 (2x996T)

MRU 3: RU 4 (484T)+RU 1 (996T)+RU 2 (2x996T)

MRU 5: RU 6 (484T)+RU 4 (996T)+RU 1 (2x996T)

MRU 7: RU 8 (484T)+RU 3 (996T)+RU 1 (2x996T)

Based on the 2-bit pointer of BS and B0, the selection of MRU 1, MRU 3, MRU 5 or MRU 7 can be determined. That is, the idea of the method is that after providing a set of RU/MRU corresponding to a specific value of 7 bits, a specific MRU in the set can be determined with reference to the 2 bits of BS and B0.

It should be noted that MRUx or RUx of the corresponding resource block size may represent a specific RU/MRU location.

The primary/secondary channel location indication method is used for 2-bit BS and B0, and the 2-bit indicator can indicate the 80 MHz location where the smallest RU in RU/MRU is located. The details are provided in Table 4(3).

The MRU value in the table is given in the appendix “MRU Index” shown in Table 4(4a) and Table 4(4b).

The MRU index is the MRU index. It should be noted that the MRU index is not the value obtained using 7 bits or 9 bits in the resource block allocation subfield, but can be considered as an MRU template. Table 4(4a) and Table 4(4b) show the MRU indices that exist in the presence of 160 MHz and 320 MHz.

Table 4(4a) MRU type MRU index MRU combination
Note: empty means empty 996 RU+484 RU MRU 1 996 RU+484 RU; [blank-RU 484 RU 484 RU 996] MRU 2 996 RU+484 RU; [RU 484 empty - RU 484 RU 996] MRU 3 996 RU+484 RU; [RU 996 empty - RU 484 RU 484] MRU 4 996 RU+484 RU; [RU 996 RU 484 empty-RU 484] RU 996+RU 484+RU 242 (only for non-OFDMA) MRU 1 996 RU + 484 RU + 242 RU; [empty-RU 242 RU 242 RU 484 RU 996] MRU 2 996 RU + 484 RU + 242 RU; [RU 242 empty - RU 242 RU 484 RU 996] MRU 3 996 RU + 484 RU + 242 RU; [RU 484 empty - RU 242 RU 242 RU 996] MRU 4 996 RU + 484 RU + 242 RU; [RU 484 RU 242 empty - RU 242 RU 996] MRU 5 996 RU + 484 RU + 242 RU; [RU 996 empty - RU 242 RU 242 RU 484] MRU 6 996 RU + 484 RU + 242 RU; [RU 996 RU 242 empty - RU 242 RU 484] MRU 7 996 RU + 484 RU + 242 RU; [RU 996 RU 484 empty-RU 242 RU 242] MRU 8 996 RU + 484 RU + 242 RU; [RU 996 RU 484 RU 242 empty-RU 242]

Table 4(4b) MRU type MRU index MRU combination
Note: empty means empty 2×996 RU+484 RU MRU 1 2×996 RU+484 RU; [empty-RU 484 RU 484 RU 996 RU 996 empty-RU 996] MRU 2 2×996 RU+484 RU; [RU 484 empty-RU 484 RU 996 RU 996 empty-RU 996] MRU 3 2×996 RU+484 RU; [RU 996 empty-RU 484 RU 484 RU 996 empty-RU 996] MRU 4 2×996 RU+484 RU; [RU 996 RU 484 empty-RU 484 RU 996 empty-RU 996] MRU 5 2×996 RU+484 RU; [RU 996 RU 996 empty-RU 484 RU 484 empty-RU 996] MRU 6 2×996 RU+484 RU; [RU 996 RU 996 RU 484 empty-RU 484 empty-RU 996] MRU 7 2×996 RU+484 RU; [empty-RU 996 empty-RU 484 RU 484 RU 996 RU 996] MRU 8 2×996 RU+484 RU; [empty-RU 996 RU 484 empty-RU 484 RU 996 RU 996] MRU 9 2×996 RU+484 RU; [empty-RU 996 RU 996 empty-RU 484 RU 484 RU 996] MRU 10 2×996 RU+484 RU; [blank-RU 996 RU 996 RU 484 blank-RU 484 RU 996] MRU 11 2×996 RU+484 RU; [blank-RU 996 RU 996 RU 996 blank-RU 484 RU 484] MRU 12 2×996 RU+484 RU; [blank-RU 996 RU 996 RU 996 RU 484 blank-RU 484] 3×996 RU MRU 1 3×996 RU; [blank-RU 996 RU 996 RU 996 RU 996] MRU 2 3×996 RU; [RU 996 empty-RU 996 RU 996 RU 996] MRU 3 3×996 RU; [RU 996 RU 996 empty-RU 996 RU 996] MRU 4 3×996 RU; [RU 996 RU 996 RU 996 empty-RU 996] 3×996 RU+484 RU MRU 1 3×996 RU+484 RU; [blank-RU 484 RU 484 RU 996 RU 996 RU 996] MRU 2 3×996 RU+484 RU; [RU 484 empty - RU 484 RU 996 RU 996 RU 996] MRU 3 3×996 RU+484 RU; [RU 996 empty-RU 484 RU 484 RU 996 RU 996] MRU 4 3×996 RU+484 RU; [RU 996 RU 484 empty-RU 484 RU 996 RU 996] MRU 5 3×996 RU+484 RU; [RU 996 RU 996 empty-RU 484 RU 484 RU 996] MRU 6 3×996 RU+484 RU; [RU 996 RU 996 RU 484 empty-RU 484 RU 996] MRU 7 3×996 RU+484 RU; [RU 996 RU 996 RU 996 empty-RU 484 RU 484] MRU 8 3×996 RU+484 RU; [RU 996 RU 996 RU 996 RU 484 empty-RU 484]

It should be understood that the mapping relationship between the index and the RU/MRU in the table such as Table 4(1), Table 4(2), Table 4(2a), Table 4(2b), Table 4(2c), Table 4(2d), Table 4(3), Table 4(4a) or Table 4(4b) provided in the embodiments of the present application is merely an example. In a specific implementation, another table form may be obtained based on the technical solutions provided in the embodiments of the present application and shall fall within the scope of protection of the embodiments of the present application. In addition, it should be understood that the primary/secondary channel designation method provided in the embodiments of the present application may be implemented in combination with another embodiment of the present application as long as the solutions do not contradict each other, for example, it may be implemented in combination with the resource block designation methods and the device provided in Embodiments 1 to 6.

Embodiment 2: The method 120 for specifying resource blocks is mainly described in Embodiment 2.

Fig. 15 is a flow chart of the method 120 for indicating resource blocks according to this embodiment of the present application. The difference between the method 120 for indicating resource blocks shown in Fig. 15 and the method 110 for indicating resource blocks shown in Fig. 6 is that the frequency band range indicator indicates a different frequency band range, that is, the frequency band range indicator in the method 120 for indicating resource blocks is used to indicate a frequency band range of 40 MHz in which the smallest RU in the MRU indicated by the frequency band range indicator is located. As shown in Fig. 15, the method 120 for indicating resource blocks may include, but is not limited to, the following steps.

S121 The access point determines the trigger frame.

The trigger frame includes a resource allocation subfield used to indicate the resource allocation of the station. The resource block allocation subfield includes a frequency band range indicator and a resource block indicator. The resource block indicator is used to indicate the MRU allocated to the corresponding station. The frequency band range indicator is used to indicate the 40 MHz band in which the smallest RU in the MRU indicated by the resource block indicator is located.

S122 The access point sends a trigger frame.

S123 The station receives a trigger frame from the access point.

S124 The station determines the allocated MRU based on the frequency band indicator and the resource block indicator.

In one implementation, the station determining the allocated MRU based on the frequency band range indicator and the resource block indicator in step S124 includes: the RU in the MRU indicated by the resource block indicator is located in the frequency band range of 40 MHz, and then learning about the allocated MRU with reference to the index indicated by the resource block indicator.

The station identifies the 40 MHz indicated by the frequency band indicator, can learn that the smallest RU in the MRU indicated by the resource block indicator is in the 40 MHz frequency band, and then learns the allocated MRU with reference to the index indicated by the resource block indicator.

For example, the MRU indicated by the resource block indicator is a (52+26)-tone RU, and the frequency band range indicated by the frequency band range indicator is a 40 MHz frequency band in which the 26-tone RU in the (52+26)-tone RU is located. Alternatively, the MRU indicated by the resource block indicator is a (106+26)-tone RU, and the frequency band range indicated by the frequency band range indicator is a 40 MHz frequency band in which the 26-tone RU in the (106+26)-tone RU is located. Alternatively, the MRU indicated by the resource block indicator is a (484+242)-tone RU, and the frequency band range indicated by the frequency band range indicator is the 40 MHz frequency band in which the 242-tone RU in the (484+242)-tone RU is located. Alternatively, the MRU indicated by the resource block indicator is a (996+484)-tone RU, and the frequency band range indicated by the frequency band range indicator is the 40 MHz frequency band in which the 484-tone RU in the (996+484)-tone RU is located. Alternatively, the MRU indicated by the resource block indicator is a (2*996+484)-tone RU, and the frequency band range indicated by the frequency band range indicator is a 40 MHz frequency band in which a 484-tone RU is located in a (2*996+484)-tone RU. Alternatively, the MRU indicated by the resource block indicator is a 3*996-tone RU, and the frequency band range indicated by the frequency band range indicator is a 40 MHz frequency band in which one 996-tone RU is located in a 3*996-tone RU. Alternatively, the MRU indicated by the resource block indicator is a (3*996+484)-tone RU, and the frequency band range indicated by the frequency band range indicator is a 40 MHz frequency band in which the 484-tone RU is located in the (3*996+484)-tone RU. Alternatively, the MRU indicated by the resource block indicator is a (996+484+242)-tone RU, and the frequency band range indicated by the frequency band range indicator is a 40 MHz frequency band in which the 242-tone RU is located in the (996+484+242)-tone RU.

In this case, the 40 MHz band in which the 996-tone RU is located indicates the 40 MHz covered by the 996-tone RU. The 996-tone RU overlaps two 40 MHz band ranges, and thus the band range indicator may indicate the location of either of the two 40 MHz band ranges, is specified to indicate the location of the lowest 40 MHz band in the two 40 MHz band ranges, or is specified to indicate the location of the highest 40 MHz band in the two 40 MHz band ranges.

It is assumed that the resource block allocation subfield includes 9 bits, and the frequency range indicator is the first through third bits, designated as B0, B1, and B2, in the resource block allocation subfield. In this case, B0, B1, and B2 indicate a 40 MHz band in the 320 MHz range. It is assumed that Table 5 shows the 40 MHz band ranges that must be indicated by the frequency range indicator (B0, B1, and B2) to indicate the 40 MHz band in which the smallest RU in the MRU indicated by the resource block indicator is located. The 40 MHz band ranges in the 320 MHz band are sequentially designated as the first 40 MHz band, the second 40 MHz band, the third 40 MHz band, the fourth 40 MHz band, the fifth 40 MHz band, the sixth 40 MHz band, the seventh 40 MHz band, and the eighth 40 MHz band in ascending frequency order. As shown in Table 5, there are different values for B0, B1, and B2 corresponding to the eight 40 MHz band ranges.

Table 5. Frequency band ranges that must be indicated by the frequency band range indicator (B0, B1 and B2) B2-B0 of RU Allocation subfield Meaning 000 First 40 MHz band in 320 MHz range 001 Second 40 MHz band in 320 MHz range 010 Third band 40 MHz in the 320 MHz range 011 Fourth 40 MHz band in the 320 MHz range 100 Fifth band 40 MHz in the 320 MHz range 101 Sixth band 40 MHz in the 320 MHz range 110 The seventh band is 40 MHz in the 320 MHz range 111 Eighth band 40 MHz in the 320 MHz range

The resource block indicator is the fourth to ninth bit, designated as B3-B8, in the resource block allocation subfield. In this case, with reference to the frequency band indicator and the RU or MRU to be indicated, the RU or MRU to be indicated by the resource block indicator may be given in Table 6, but not limited to Table 6. The values of B3-B8 are in the first column of Table 6 and may be referred to as indices indicated by the resource block indicator. The second column in Table 6 indicates the resource block size corresponding to each index. The third column of Table 6 indicates the number of indices, namely the number of entries corresponding to each resource block size. In Table 6, the corresponding RU or MRU may be determined with reference to the frequency band indicator for each index.

Table 6. Records that must be pointed to by the resource block pointer (B8-B3) B8-B3 of RU Allocation subfield Size RU (RU size) Number of entries 0-17 26 18 18-25 52 8 26-29 106 4 30-31 242 2 32 484 1 33 996 1 34 2×996 1 35 4×996 1 36-41 52+26 6 42-45 106+26 4 46-47 484+242 2 48 996+484 1 49-51 2×996+484 3 52-54 3×996 3 55 3×996+484 1 56-57 996+484+242 2

As shown in Fig. 3, there are 18 locations for a 26-tone RU in a 40 MHz bandwidth. Thus, based on the 40 MHz bandwidth indicated by the bandwidth range indicator, the resource block indicator indicates one of the indices from 0 to 17 shown in Table 6 to indicate one corresponding 26-tone RU in the 40 MHz bandwidth. It can be learned that this implementation reduces the number of indices required to indicate the location of the 26-tone RU in the bandwidth.

As shown in Fig. 3, there are eight locations for a 52-tone RU in a 40 MHz bandwidth. Thus, based on the 40 MHz bandwidth indicated by the bandwidth range indicator, the resource block indicator indicates one of the indices 18 to 25 shown in Table 6 to indicate one corresponding 52-tone RU in the 40 MHz bandwidth. It can be learned that this implementation reduces the number of indices required to indicate the location of the 52-tone RU in the bandwidth.

As shown in Fig. 3, there are four locations for a 106-tone RU in a 40 MHz frequency band. Thus, based on the 40 MHz frequency band indicated by the frequency band range indicator, the resource block indicator indicates one of the indices 26 to 29 shown in Table 6 to indicate one corresponding 106-tone RU in the 40 MHz frequency band.

As shown in Fig. 3, there are two locations for a 242-tone RU in the 40 MHz frequency band range. Thus, based on the 40 MHz frequency band range indicated by the frequency band range indicator, the resource block indicator indicates one of the indices 30 and 31 shown in Table 6 to indicate one corresponding 242-tone RU in the 40 MHz frequency band range.

As shown in Fig. 3, there is one location for a 484-tone RU in a 40 MHz frequency band range. Thus, based on the 40 MHz frequency band range indicated by the frequency band range indicator, the resource block indicator indicates index 32 shown in Table 6 to indicate a 484-tone RU corresponding to 40 MHz.

As shown in Fig. 3, the 996-tone RU occupies two 40 MHz frequency bands, and thus the frequency band range indicator may indicate any of the two 40 MHz frequency bands. Accordingly, based on the 40 MHz frequency band indicated by the frequency band range indicator, the resource block indicator may indicate the index 33 shown in Table 6 to indicate the 996-tone RU corresponding to 40 MHz. For example, if the frequency band range indicator is 000, it can be learned from Table 5 that the 40 MHz frequency band indicated by the frequency band range indicator is the first 40 MHz frequency band in the 320 MHz frequency band range. If the resource block indicator indicates index 33, it can be known, with reference to Table 6, that the RU corresponding to index 33 is a 996-tone RU, and it can be known, with reference to the first 40 MHz frequency band in the 320 MHz frequency band range indicated by the frequency band range indicator, that the 996-tone RU indicated by the resource block indicator is the first 996-tone RU in the 320 MHz frequency band range.

2*996-tone RU cannot overlap two 160 MHz frequency bands, in other words, the frequency band range in which the 2*996-tone RU is located can only be the 160 MHz primary channel or the 160 MHz secondary channel. Therefore, the frequency band range indicator can indicate the 40 MHz frequency band in which one 996-tone RU in the 2×996-tone RU is located, and the location of the 2×996-tone RU can be known. Thus, only one index 34 is required for the resource block indicator. For example, a station can determine, based on the frequency band range indicator and Table 5, that the 40 MHz frequency band in which the smallest RU in the MRU is located is the first 40 MHz frequency band, and the station can then know, with reference to the information indicating that the RU size corresponding to index 34 indicated by the resource block indicator is a 2*996-tone RU, that the allocated 2*996-tone RU corresponds to the 160 MHz primary channel.

There is only one 4×996-tone RU in the 320 MHz bandwidth. Therefore, the resource block indicator can indicate one index 35, so that the station can know that the allocated RU is a 4×996-tone RU.

There are three combinations shown in Fig. 7 for (52+26)-tone RUs in the 20 MHz frequency band range. Thus, based on the 40 MHz frequency band in which the 26-tone RU is located and which is indicated by the frequency band range indicator, the resource block indicator must additionally indicate one of the indices 36-41 to indicate one corresponding (52+26)-tone RU in the 40 MHz frequency band range. The indices 36-41 in ascending order can be in one-to-one correspondence with the starting frequencies of six (52+26)-tone RUs in ascending order.

There are two combinations shown in Fig. 8 for the (106+26)-tone RUs in the 20 MHz frequency band range. Thus, there are four (namely 2*2) combinations for the (106+26)-tone RUs in the 40 MHz frequency band range. Thus, based on the 40 MHz frequency band in which the 26-tone RU is located and which is indicated by the frequency band range indicator, the resource block indicator must additionally indicate one of the indices 42-45 to indicate one corresponding (106+26)-tone RU in the 40 MHz frequency band. The indices 42-45 in ascending order can be in one-to-one correspondence with the starting frequencies of eight (106+26)-tone RUs in ascending order.

There are four combinations shown in Fig. 9 for the (484+242)-tone RUs in the 80 MHz frequency band. Thus, based on the 40 MHz frequency band in which the 242-tone RU is located and which is indicated by the frequency band range indicator, the resource block indicator needs to indicate only one of the two locations of the 242-tone RU in the 40 MHz frequency band range, since the 484-tone RU is located in the (484+242)-tone RU at a fixed location. Thus, the resource block indicator needs to additionally indicate one of the indices 46 and 47 to indicate one corresponding (484+242)-tone RU. The indices 46 and 47 in ascending order can be in one-to-one correspondence with the starting frequencies of the 242-tone RU at the two locations in the 40 MHz frequency band range in ascending order. For example, index 46 corresponds to the first 242-tone RU in the 40 MHz frequency band range, and index 47 corresponds to the second 242-tone RU in the 40 MHz frequency band range.

The (996+484)-tone RU can be located in the primary channel of 160 MHz or the secondary channel of 160 MHz, and thus there are four combinations shown in Fig. 10 for the (996+484)-tone RU in the frequency band of 160 MHz. Thus, based on the frequency band of 40 MHz in which the 484-tone RU is located and which is indicated by the frequency band range indicator, the station can directly know the location of the 996-tone RU and the 484-tone RU in the (996+484)-tone RU. Thus, the resource block indicator needs to indicate only one index 48.

Thus, for the access point side, the frequency band indicator may indicate the 40 MHz frequency band in which the 484-tone RU in the (996+484)-tone RU is located, and the resource block indicator may indicate the index 48 to notify the station that the size of the allocated RU is a (996+484)-tone RU. Accordingly, after receiving the resource block allocation subfield, the station can determine the location of the allocated (996+484)-tone RU based on the 40 MHz frequency band indicated by the frequency band indicator and by referring to the index 48 indicated by the resource block indicator and Table 6.

In one implementation, there is a limitation that the (2*996+484)-tone RU indicated by the resource block pointer is only in the lowest or highest 240 MHz frequency band in the 320 MHz frequency band range. Thus, there are six combinations shown in Fig. 11 for the (2*996+484)-tone RU in the 240 MHz frequency band range, in other words, there are six combinations shown in Fig. 11 for the (2*996+484)-tone RU in the lowest or highest 240 MHz frequency band in the 320 MHz frequency band range. Based on the 40 MHz frequency band in which the 484-tone RU in the (2*996+484)-tone RU is located and which is indicated by the frequency band range indicator, the remaining two 996-tone RUs can be two 996-tone RUs in the lowest 240 MHz frequency band or two 996-tone RUs in the highest 240 MHz frequency band. Therefore, the resource block indicator additionally requires two indices, for example, index 52 and index 53. One index corresponds to the lowest 240 MHz frequency band, and the other index corresponds to the highest 240 MHz frequency band.

In another implementation, for simplicity of logic, there is no restriction that the (2*996+484)-tone RU indicated by the resource block indicator is only in the lowest or highest frequency band of 240 MHz in the frequency band range of 320 MHz. Thus, based on the frequency band of 40 MHz in which the 484-tone RU in the (2*996+484)-tone RU is located and which is indicated by the frequency band range indicator, the remaining two 996-tone RUs can be any two of the other three 996-tone RUs in the frequency band of 320 MHz, except for the frequency band of 80 MHz in which the 484-tone RU is located. Thus, the resource block indicator must additionally indicate three indices, namely indices 49-51, to indicate the corresponding location of the (2*996+484)-tone RU.

There are four combinations shown in Fig. 12 for a 3*996-tone RU in a 320 MHz frequency band. Thus, based on the 40 MHz frequency band in which the 996-tone RU is located and which is indicated by the frequency band range indicator, there are three options for the remaining two 996-tone RUs in the 3*996-tone RU in a 320 MHz frequency band. Thus, the resource block indicator must additionally indicate one of the indices 52-54 to indicate the location of the remaining two 996-tone RUs in combination with the 996-tone RU corresponding to the 40 MHz frequency band in the 320 MHz frequency band. The indices 52-54 in ascending order can be in one-to-one correspondence with the starting frequencies in ascending order of the three 3*996-tone RUs, which are available when there are three options for the remaining two 996-tone RUs.

For example, the MRU size indicated by the resource block pointer is a 3×996-tone RU, and the indices indicated by the resource block pointer are in one-to-one correspondence with the starting frequencies of additional combinations of the 3*996-tone RU in ascending order. In this case, when allocating the 3×996-tone RU shown in the last row of Fig. 12 to a station, the access point shall set B0B1B2 corresponding to the station to 000 (or 001) and set B3 in B8 to 52 with reference to Table 5. Then, the station learns that the 40 MHz band in which the smallest RU in the MRU is located in the first or second 40 MHz band in the 320 MHz band range, the RU size corresponding to the index indicated from B3 to B8 is a 3*996-tone RU, and the index indicated from B3 to B8 is 52. Index 52 in Table 6 corresponds to the 3×996-tone RU shown in the third row of Fig. 12, index 53 corresponds to the 3×996-tone RU shown in the second row of Fig. 12, and index 54 corresponds to 3×996-tone RU shown in the first row of Fig. 12. Thus, the station can know, based on index 52, that the allocated 3×996-tone RU is the 3×996-tone RU shown in the third row of Fig. 12.

There are eight combinations shown in Fig. 13 for (3*996+484)-tone RUs in the 320 MHz band. Thus, based on the 40 MHz band in which the 484-tone RU is located and which is indicated by the band range indicator, for the remaining three 996-tone RUs in the 320 MHz band, there is only one option, and the 484-tone RU is in a fixed location. Thus, only one index 54 is required for the resource block indicator.

There are four combinations shown in Fig. 14 for the (484+242)-tone RU in the 80 MHz band, and thus there are eight combinations for the (996+484+242)-tone RU in the 160 MHz band range. Thus, based on the 40 MHz band in which the 242-tone RU is located and which is indicated by the band range indicator, there is only one option for the 996-tone RU in the band range that is different from the 80 MHz band in the 160 MHz band range, but there are two locations for the 242-tone RU in the 40 MHz band. Thus, the resource block indicator must additionally indicate one of the indices 55 and 56 in order to indicate one location of the 242-tone RU in the 40 MHz band. Indices 55 and 56 in ascending order can be in one-to-one correspondence with the starting frequencies of the 242-tone RU at two locations in the 40 MHz frequency band range in ascending order.

From the preceding analysis, it can be concluded that the frequency band in which the smallest RU in the MRU is located can be further notified using the frequency band range indicated by the frequency band range indicator, and thus this allows the resource block indicator to use fewer indices to indicate different possible locations of the MRU. For example, as shown in Table 6, the resource block indicator requires only two indices to respectively indicate eight combinations of (996+484+242)-tone RUs. As another example, as shown in Table 6, the resource block indicator requires only one index to respectively indicate eight combinations of (3*996+484)-tone RUs. Compared with the method in which the frequency band range indicator indicates only the lowest 80 MHz frequency band that belongs to the MRU, the frequency band range indicator in the resource block indicating method 120 can carry more information, in other words, can carry the 40 MHz frequency band in which the smallest RU in the MRU is located. For example, if the frequency band range indicator indicates only the lowest 80 MHz frequency band that belongs to the MRU, four indices are required for the resource block indicator to respectively indicate the four combinations of (996+484)-tone RUs shown in Fig. 10. If the frequency band indicator is used to indicate the 40 MHz band in which the smallest RU in the MRU is located, the resource block indicator requires only one index to indicate all combinations of (996+484)-tone RUs, as shown in Table 6. Thus, the frequency band indicator in the resource block indicator method 120 can carry more information, and this allows the resource block indicator to use fewer indices to properly indicate the various possible MRU locations.

In this embodiment of the present application, the frequency band range indicator is used to indicate the frequency band range in which the smallest RU in the MRU is located. In addition to the 80 MHz frequency band in the resource block indicating method 110 and the 40 MHz frequency band in the resource block indicating method 120, the frequency band range indicator may indicate 160 MHz, 240 MHz or 320 MHz. In other words, in the resource block indicating method, the frequency band range indicator is used to indicate the 160 MHz frequency band in which the smallest RU in the MRU is located. In another resource block indicating method, the frequency band range indicator is used to indicate the 240 MHz frequency band in which the smallest RU in the MRU is located. In yet another resource block indicating method, the frequency band range indicator is used to indicate the 320 MHz frequency band in which the smallest RU in the MRU is located. For related contents of these resource block indicating methods, refer to the resource block indicating method 110 and the resource block indicating method 120. The details are not described here.

In addition, in the above-mentioned methods of indicating resource blocks, when the frequency band range in which the smallest RU in the MRU is located is larger than the frequency band range indicated by the frequency band range indicator, the frequency band range indicated by the frequency band range indicator may be the lowest or the highest frequency band covered by the smallest RU, or the frequency band range indicated by the frequency band range indicator may be any frequency band range or a specified frequency band range. For example, in the resource block indicator method, when the frequency band range indicated by the frequency band range indicator is smaller than the frequency band range in which the smallest RU in the MRU is located, the frequency band range indicated by the frequency band range indicator is the lowest frequency band corresponding to the smallest RU. As another example, in the resource block indicator method, when the frequency band range indicated by the frequency band range indicator is smaller than the frequency band range in which the smallest RU in the MRU is located, the frequency band range indicated by the frequency band range indicator is the highest frequency band corresponding to the smallest RU.

For example, in the method 120 of indicating resource blocks, it is assumed that the MRU indicated by the resource block indicator is a 3×996-tone RU, and the smallest RU in the 3×996-tone RU is a 996-tone RU. The 40 MHz frequency band indicated by the frequency band range indicator is smaller than the frequency band range corresponding to the smallest RU, and thus the 40 MHz frequency band indicated by the frequency band range indicator may be any range of 40 MHz frequency bands corresponding to the 996-tone RU, or may be specified by the lowest 40 MHz frequency band or the highest 40 MHz frequency band corresponding to the 996-tone RU.

In addition, if there are a plurality of smallest RUs in the MRU, the frequency band range indicator may indicate any frequency band range or a specified frequency band range, for example, a frequency band range in which the first smallest RU is located, or a frequency band range in which the last smallest RU is located. For example, in the resource block indicating method 110, a 3×996-tone RU includes three smallest RUs, each of which is a 996-tone RU. Thus, the 80 MHz frequency band indicated by the frequency band range indicator may be the 80 MHz frequency band in which any 996-tone RU is located, the 80 MHz frequency band in which the first 996-tone RU in the 3*996-tone RU is located, or the 80 MHz frequency band in which the last 996-tone RU in the 3*996-tone RU is located.

If necessary, this application additionally provides some methods for indicating resource blocks. If the MRU indicated by the resource block indicator is a (2*996+484)-tone RU, when the 80 MHz frequency band indicated by the frequency band range indicator is the first frequency band or the second 80 MHz frequency band in the 320 MHz frequency band range, this indicates that the 240 MHz frequency band in which the (2*996+484)-tone RU is located is the first 80 MHz frequency band - the third 80 MHz frequency band in the 320 MHz frequency band range; or, when the 80 MHz band indicated by the band indicator is the third band or the fourth 80 MHz band in the 320 MHz band, it indicates that the 240 MHz band in which the (2*996+484)-tone RU is located is the second 80 MHz band - the fourth 80 MHz band in the 320 MHz band. Thus, the station can know, based on the band indicator, the 240 MHz band in which the (2*996+484)-tone RU indicated by the resource block indicator is located.

Embodiment 3: The method 210 for specifying resource blocks is mainly described in Embodiment 3.

The present application further provides a method 210 for indicating resource blocks. In the method 210 for indicating resource blocks, a frequency band range indicator is used to indicate a frequency band range in a bandwidth in which some or all of the RUs other than the RU/MRU indicated by the resource block indicator are located. Fig. 16 shows a flow chart of the method 210 for indicating resource blocks according to this embodiment of the present application. As shown in Fig. 16, the method 210 for indicating resource blocks may include, but is not limited to, the following steps.

S211 The access point determines the trigger frame.

The trigger frame includes a resource block allocation subfield used to indicate the resource allocation of the station. The resource block allocation subfield includes a frequency band range indicator and a resource block indicator. The resource block indicator is used to indicate the RUs/MRUs allocated to the corresponding station. The frequency band range indicator is used to indicate the range of frequency bands within the passband in which some or all of the RUs other than the RUs/MRUs are located.

S212 The access point sends a trigger frame.

S213 Station receives trigger frame.

S214 The station determines the allocated RU/MRU based on the resource block indicator and the frequency band range indicator.

The station's determination of the allocated RU/MRU based on the resource block indicator and the frequency band range indicator may include the following: the station determines, from a frequency band range, in a 320 MHz frequency band range other than the frequency band range indicated by the frequency band indicator, the RU/MRU indicated by the resource block indicator.

In one implementation, the range of frequency bands indicated by the frequency band range indicator is 40 MHz in bandwidth, and the MRU indicated by the resource block indicator is determined from a range of frequency bands other than 40 MHz, which is indicated by the frequency band range indicator.

For example, if the frequency band range indicated by the frequency band range indicator is the first 40 MHz band in the frequency band range of 320 MHz, the MRU indicated by the resource block indicator is determined from the frequency band range other than the first 40 MHz band in the frequency band range of 320 MHz. If the MRU indicated by the resource block indicator is a (3×996+484)-tone RU as shown in Fig. 13, the (3*996+484)-tone RU indicated by the resource block indicator is determined from the frequency band range other than the first 40 MHz band in the frequency band range of 320 MHz, in other words, it is a (3*996+484)-tone RU shown in the second row in Fig. 13.

In another implementation, the frequency band range indicated by the frequency band range indicator is 80 MHz in bandwidth, and the MRU indicated by the resource block indicator is determined from a frequency band range other than 80 MHz, which is indicated by the frequency band range indicator.

For example, if the frequency band range indicated by the frequency band range indicator is the first 80 MHz band in the frequency band range of 320 MHz, the RU/MRU indicated by the resource block indicator is determined from the second 80 MHz band to the fourth 80 MHz band, which are different from the first 80 MHz band in the frequency band range of 320 MHz. If the MRU indicated by the resource block indicator is a 3*996-tone RU, the 3*996-tone RU corresponding to the second 80 MHz band to the fourth 80 MHz band is the MRU allocated to the station, for example, the 3*996-tone RU shown in the first row of Fig. 12.

In another implementation, the frequency band range indicated by the frequency band range indicator is a 160 MHz frequency band in the passband, and the MRU indicated by the resource block indicator is defined in a 160 MHz frequency band range different from the 160 MHz frequency band indicated by the frequency band range indicator.

For example, if the frequency band range indicated by the frequency band range indicator is a 160 MHz primary channel in a 320 MHz frequency band range, the MRU indicated by the resource block indicator is determined from a 160 MHz secondary channel in a 320 MHz frequency band range. If the MRU size indicated by the resource block indicator is a (996+484)-tone RU, as shown in Fig. 10, the resource block indicator must additionally use one of the four indices to indicate one (996+484)-tone RU shown in Fig. 10.

It can be learned that in the resource block designation method 210, the frequency band range indicated by the frequency band range indicator is a frequency band range that does not belong to the RU/MRU indicated by the resource block designator, in other words, the station must determine from a frequency band range other than the frequency band range indicated by the frequency band range indicator, the RU/MRU indicated by the frequency band range indicator.

Embodiment 4: The method 220 for specifying resource blocks is mainly described in Embodiment 4.

The present application further provides a method 220 for indicating resource blocks. In the method 220 for indicating resource blocks, a frequency band range indicator is used to indicate a frequency band range in a passband, and the RU/MRU allocated to the station includes an RU in a frequency band range that is different from the frequency band range in the passband. Fig. 17 is a flow chart of the method 220 for indicating resource blocks according to this embodiment of the present application. As shown in Fig. 17, the method 220 for indicating resource blocks may include, but is not limited to, the following steps.

S221 The access point determines the trigger frame.

The trigger frame includes a resource block allocation subfield used to indicate the resource allocation of the station. The resource block allocation subfield includes a frequency band range indicator and a resource block indicator. The resource block indicator is used to indicate the RUs/MRUs allocated to the corresponding station. The frequency band range indicator is used to indicate the range of frequency bands in the passband. The MRU includes the remaining RUs in the frequency band range, in a passband different from the range of frequency bands indicated by the frequency band range indicator.

S222 The access point sends a trigger frame.

S223 Station receives trigger frame.

S224 The station determines the allocated RU/MRU based on the resource block indicator and the frequency band range indicator.

What the station identifies as an allocated RU/MRU based on the resource block indicator and the frequency band range indicator may include the following: the station uses an RU/MRU corresponding to a frequency band range in a 320 MHz frequency band range other than the frequency band range indicated by the frequency band range indicator as an allocated RU/MRU.

If necessary, the range of frequency bands indicated by the frequency band range indicator is a 40 MHz frequency band in the passband, and the MRU indicated by the resource block indicator includes the remaining RUs in the range of frequency bands, in a passband other than the 40 MHz frequency band indicated by the frequency band range indicator.

For example, if the frequency band range indicated by the frequency band range indicator is the first 40 MHz band in the frequency band range of 320 MHz, the RUs in the frequency band range that is different from the first 40 MHz band in the frequency band range of 320 MHz are, respectively, a 484-tone RU and three 996-tone RUs, as shown in Fig. 13. If the MRU indicated by the resource block indicator is a (3*996+484)-tone RU, the MRU is a RU in the frequency band range that is different from the first 40 MHz band in the frequency band range of 320 MHz, for example, the (3*996+484)-tone RU shown in the second row in Fig. 13.

If necessary, the range of frequency bands indicated by the frequency band range indicator is the 80 MHz frequency band in the passband, and the MRU indicated by the resource block indicator includes the remaining RUs in the range of frequency bands, in a passband other than the 80 MHz frequency band indicated by the frequency band range indicator.

For example, if the frequency band range indicated by the frequency band range indicator is the first 80 MHz band in the 320 MHz band range, the RU/MRU indicated by the resource block indicator is determined from the second 80 MHz band to the fourth 80 MHz band in the 320 MHz band range, excluding the first 80 MHz band. If the MRU indicated by the resource block indicator is a 3*996-tone RU, the 3*996-tone RU corresponding to the second 80 MHz band to the fourth 80 MHz band is the MRU allocated to the station, for example, the 3*996-tone RU shown in the first row in Fig. 12.

In another implementation, the frequency band range indicated by the frequency band range indicator is 160 MHz in the passband, and the MRU indicated by the resource block indicator includes the remaining RUs in a frequency band range other than the 160 MHz frequency band indicated by the frequency band range indicator.

For example, if the frequency band range indicated by the frequency band range indicator is a 160 MHz primary channel in a 320 MHz frequency band range, the MRU indicated by the resource block indicator is the 2*996-tone RU corresponding to the secondary 160 MHz.

It can be learned that in the method 220 of specifying resource blocks, the RU/MRU specified by the resource block indicator is the RU/MRU corresponding to a frequency band range different from the frequency band range specified by the frequency band range indicator. In this way, the number of indices that must be specified by the resource block indicator is further reduced. In addition, the processing logic can be simplified to reduce the processing complexity of the station.

Embodiment 5: The method 310 for specifying resource blocks is mainly described in Embodiment 5.

The present application further provides a method for indicating resource blocks. In the method for indicating resource blocks, the granularity of the frequency band range indicated by the frequency band range indicator relates to the RU/MRU indicated by the resource block indicator. When the frequency band range occupied by the RU/MRU (or in which the RU/MRU is located) is less than or equal to 80 MHz, the granularity of the frequency band range indicated by the frequency band range indicator is 80 MHz. When the frequency band occupied by the RU/MRU is greater than 80 MHz and less than or equal to 160 MHz, the granularity of the frequency band range indicated by the frequency band range indicator is 160 MHz. When the frequency band range occupied by the RU/MRU is greater than 160 MHz and less than 320 MHz, the granularity of the frequency band range indicated by the frequency band range indicator is 320 MHz.

Alternatively, a frequency band range of 240 MHz indicated by the frequency band range indicator may be added. In this case, when the frequency band range occupied by the RU/MRU is greater than 160 MHz and less than or equal to 240 MHz, the granularity of the frequency band range indicated by the frequency band range indicator is 240 MHz. When the frequency band range occupied by the RU/MRU is greater than 240 MHz and less than or equal to 320 MHz, the granularity of the frequency band range indicated by the frequency band range indicator is 320 MHz.

In this description, the frequency band range indicated by the frequency band range indicator actually refers to the value and location of the frequency band range, namely, the location of the frequency band range in the frequency pass band or the frequency band range in the pass band. For example, if the frequency band range indicated by the frequency band range indicator is 80 MHz in the pass band, this indicates that the granularity of the frequency band range indicated by the frequency band range indicator is 80 MHz, and indicates the location of the frequency band range of 80 MHz in the pass band.

The bandwidth indicator is assumed to be the first two bits, designated B0 and B1, in the resource block allocation subfield.

When the granularity of the frequency band range indicated by the frequency band range indicator is 80 MHz, B0 and B1 can represent four states, which shall respectively indicate four 80 MHz frequency band ranges in the 320 MHz frequency band range.

When the granularity of the frequency band range indicated by the frequency band range indicator is 160 MHz, in one case 0 or 1 in B0 is used to indicate the highest frequency band of 160 MHz or the lowest frequency band of 160 MHz, and B1 may be reserved. In another case, 0 or 1 in B1 may be used to indicate the highest frequency band of 160 MHz or the lowest frequency band of 160 MHz, and B0 is reserved. In another case, B0 corresponds to the highest frequency of 160 MHz, and B1 corresponds to the lowest frequency of 160 MHz. If B0 is set to 1, this indicates that the frequency band range indicated by the frequency band range indicator is 160 MHz. If B1 is set to 1, this indicates that the frequency band range indicated by the frequency band range indicator is the lowest frequency band of 160 MHz. In yet another case, two of the four states indicated by B0 and B1 may be used for the indication. For example, 00 corresponds to the lowest frequency of 240 MHz, and 01 corresponds to the highest frequency of 240 MHz.

When the granularity of the frequency band range indicated by the frequency band range indicator is 320 MHz, in a certain sense there is no plurality of locations with a frequency band of 320 MHz, and thus the values of B0 and B1 are not limited in this application, and B0 and B1 may be reserved or set randomly. In another case, one of the four states represented by B0 and B1, for example, 00, may be used to indicate that the frequency band range indicated by the frequency band range indicator is 320 MHz.

When the granularity of the frequency band range indicated by the frequency band range indication is 240 MHz, B0 and B1 can represent four states, which shall respectively indicate four combinations of 240 MHz in the frequency band range of 320 MHz.

When the 240 MHz frequency band range in which the MRU is located is required to be a continuous range of 240 MHz frequency bands, B0 corresponds to the highest frequency of 240 MHz and B1 corresponds to the lowest frequency of 240 MHz. If B0 is set to 1, it indicates that the frequency band range indicated by the frequency band range indicator is 240 MHz. If B1 is set to 1, it indicates that the frequency band range indicated by the frequency band range indicator is the lowest frequency band of 240 MHz. Alternatively, two of the four states represented by B0 and B1 can be used to indicate a continuous range of frequency bands within the 240 MHz frequency band range. For example, 00 corresponds to the lowest frequency band of 240 MHz and 01 corresponds to the highest frequency band of 240 MHz.

The resource block designation method 310 is described using an example in which "a frequency band range indicator is used to designate a frequency band range in which the RU/MRU indicated by the resource block indicator is located." Fig. 18 shows a flow chart of the resource block designation method 310 according to this embodiment of the present application. As shown in Fig. 18, the resource block designation method 310 may include, but is not limited to, the following steps.

S311 The access point determines the trigger frame.

The trigger frame includes a resource block allocation subfield used to indicate the resource allocation of the station. The resource block allocation subfield includes a frequency band range indicator and a resource block indicator. The resource block indicator is used to indicate the RU/MRU allocated to the corresponding station. The frequency band range indicator is used to indicate the frequency band range in which the RU/MRU indicated by the resource block indicator is located.

S312 The access point sends a trigger frame.

S313 Station receives trigger frame.

S314 The station determines the allocated RU/MRU based on the frequency band indicator and the resource block indicator.

In the method, the relationship between the MRU/RU indicated by the resource block indicator and the frequency band range indicated by the frequency band range indicator can be represented as follows.

When the frequency band range in which the MRU/RU indicated by the resource block indicator is located is less than or equal to 80 MHz, the frequency band range indicated by the frequency band range indicator is 80 MHz in passband; or

when the frequency band range in which the MRU/RU indicated by the resource block indicator is located is greater than 80 MHz and less than or equal to 160 MHz, the frequency band range indicated by the frequency band range indicator is 160 MHz in passband; or

when the frequency band range in which the MRU/RU indicated by the resource block indicator is located is greater than 160 MHz and less than or equal to 240 MHz, the frequency band range indicated by the frequency band range indicator is 240 MHz or 320 MHz in passband; or

when the frequency band range in which the MRU/RU indicated by the resource block indicator is located is greater than 240 MHz and less than or equal to 320 MHz, the frequency band range indicated by the frequency band range indicator is 320 MHz in passband.

In this case, in the relationship between the MRU/RU indicated by the resource block indicator and the frequency band range indicated by the frequency band range indicator, the number of indices to be indicated by the resource block indicator can be determined with reference to the RU/MRU shown in Fig. 3 and Fig. 7 to Fig. 14 to obtain the index table shown in Table 7.

Table 7. Records that must be pointed to by the resource block pointer (B8-B2) B8-B2 of RU Allocation subfield Size RU Number of records Note B1 and B0 0-35 26 36 36 in the 80 MHz range Specify 80 MHz 36-51 52 16 16 in the 80 MHz range Specify 80 MHz 52-59 106 8 8 in the 80 MHz range Specify 80 MHz 60-63 242 4 4 in the 80 MHz range Specify 80 MHz 64-65 484 2 2 in the 80 MHz range Specify 80 MHz 66 996 1 1 in the 80 MHz range Specify 80 MHz 67 2×996 1 1 in the 160 MHz range Specify 160 MHz 68 4×996 1 1 in the 320 MHz range Specify 320 MHz 69-80 52+26 12 12 in the 80 MHz range Specify 80 MHz 81-88 106+26 8 8 in the 80 MHz range Specify 80 MHz 89-92 484+242 4 4 in the 80 MHz range Specify 80 MHz 93-96 996+484 4 4 in the 160 MHz range Specify 160 MHz 97-102 2×996+484 6 6 in the 240 MHz range in one implementation 1 (or 12 at 320 MHz in one implementation 2) Specify 240 MHz in one implementation 1 (or specify 320 MHz in one implementation 2) 103-106 3×996 4 4 in the 320 MHz range in one implementation 2 (or 1 in the 240 MHz range in one implementation 1) Specify 320 MHz in one implementation 2 (or specify 240 MHz in one implementation 1) 107-114 3×996+484 8 8 in the 320 MHz range Specify 320 MHz 115-122 996+484+242 8 8 in the 160 MHz range Specify 320 MHz

When the frequency band range in which the RU/MRU indicated by the resource block indicator is located is less than or equal to 80 MHz, the frequency band range of 80 MHz indicated by the frequency band range indicator and in which the RU/MRU is located is 80 MHz. The number of entries corresponding to each RU/MRU size is equal to the number of additional locations of the RU/MRU size in the frequency band range of 80 MHz.

Thus, as shown in Table 7, the number of indices corresponding to a 26-tone RU is equal to the number of 36 additional locations of a 26-tone RU in the 80 MHz frequency band range, and each index corresponds to one 26-tone RU in the 80 MHz frequency band range.

As shown in Table 7, the number of indices corresponding to a (52+26)-tone RU is equal to the number of additional locations of the (52+26)-tone RU in the 80 MHz band. As shown in Fig. 7, there are 12 (namely, 4*3) additional locations for the (52+26)-tone RUs in the 80 MHz band. Thus, 12 indices are required for the resource block pointer to respectively indicate all the (52+26)-tone RUs in the 80 MHz band.

As shown in Table 7, the number of indices corresponding to a (106+26)-tone RU is equal to the number of additional locations of a (106+26)-tone RU in the 80 MHz band. As shown in Fig. 8, there are eight additional locations for (106+26)-tone RUs in the 80 MHz band. Thus, eight indices are required for the resource block pointer to respectively indicate all the (106+26)-tone RUs in the 80 MHz band.

As shown in Table 7, the number of indices corresponding to a (484+242)-tone RU is equal to the number of additional locations of the (484+242)-tone RU in the 80 MHz band. As shown in Fig. 9, there are four additional locations for the (484+242)-tone RUs in the 80 MHz band. Thus, four indices are required for the resource block pointer to respectively indicate all the (484+242)-tone RUs in the 80 MHz band.

When the frequency band range in which the RU/MRU indicated by the resource block indicator is located is greater than 80 MHz and less than or equal to 160 MHz, the 160 MHz frequency band range indicated by the frequency band range indicator is the 160 MHz frequency band range in which the RU/MRU is located. The number of entries corresponding to each RU/MRU size is equal to the number of additional RU/MRU size locations in the 160 MHz frequency band range.

Thus, as shown in Table 7, the number of indices corresponding to a 2*996-tone RU is equal to the number of 1 additional locations of a 2*996-tone RU in the 160 MHz band range. Thus, the resource block indicator needs to indicate only one index, and a station can learn about the allocated 2*996-tone RU by referring to the band range indicator.

As shown in Table 7, the number of indices corresponding to a (996+484)-tone RU is equal to the number of 4 (as shown in Fig. 10) additional locations of a (996+484)-tone RU in the 160 MHz frequency band. Thus, four indices are required for the resource block pointer to respectively indicate all the (996+484)-tone RUs in the 160 MHz frequency band.

There are two implementations for the case in which the bandwidth range in which the RU/MRU indicated by the resource block pointer is located is greater than 160 MHz and less than or equal to 320 MHz. The 240 MHz bandwidth range is introduced in one implementation 1, and the 240 MHz bandwidth range is not introduced in one implementation 2. The two implementations are described separately below.

Implementation 1: There is a 240 MHz bandwidth range for the bandwidth range specified by the bandwidth range indicator.

When the frequency band range in which the RU/MRU indicated by the resource block indicator is located is greater than 160 MHz and less than or equal to 240 MHz, the frequency band range indicated by the frequency band range indicator is the 240 MHz frequency band, namely the 240 MHz frequency band in which the RU/MRU is located. The number of entries corresponding to each RU/MRU size is equal to the number of additional RU/MRU size locations in the 240 MHz frequency band range.

The number of indices corresponding to a (2*996+484)-tone RU is equal to the number of 6 (the number of 6 additional locations shown in Fig. 11) additional locations of a (2*996+484)-tone RU in the 240 MHz frequency band. Thus, six indices (e.g., indices 97-102 shown in Table 7) are required for the resource block indicator to respectively indicate all the (2*996+484)-tone RUs in the 240 MHz frequency band.

The number of indices corresponding to a 3×996-tone RU is equal to the number 1 of additional locations of the 3×996-tone RU in the 240 MHz band. Thus, one index is required for the resource block pointer to indicate a 3*996-tone RU in the 240 MHz band range.

When the frequency band range in which the RU/MRU indicated by the resource block indicator is located is greater than 240 MHz and less than or equal to 320 MHz, the frequency band range indicated by the frequency band range indicator is a 320 MHz frequency band, namely, the 320 MHz frequency band in which the RU/MRU is located. The number of entries corresponding to each RU/MRU size is equal to the number of additional RU/MRU size locations in the 320 MHz frequency band range.

The number of indices corresponding to a 4×996-tone RU is equal to the number of additional 4×996-tone RU locations in the 320 MHz frequency band. Thus, one index (e.g., index 68 shown in Table 7) is required for the resource block pointer to indicate a 4×996-tone RU.

The number of indices corresponding to a (3*996+484)-tone RU is equal to the number 8 (as shown in Fig. 13) of additional locations of a (3*996+484)-tone RU in the 320 MHz frequency band range. Thus, eight indices (e.g., indices 107-114 shown in Table 7) are required for the resource block pointer to indicate all the (3*996+484)-tone RUs in the 320 MHz frequency band range.

The number of indices corresponding to a (996+484+242)-tone RU is equal to the number of 8 (2*the number of 4 additional locations shown in Fig. 14) additional locations of a (996+484+242)-tone RU in the 320 MHz frequency band. Thus, eight indices (e.g., indices 115-122 shown in Table 7) are required for the resource block pointer to indicate all the (996+484+242)-tone RUs in the 320 MHz frequency band.

Implementation 2: There is no 240 MHz bandwidth for the bandwidth range specified by the bandwidth range indicator.

When the frequency band range in which the RU/MRU indicated by the resource block indicator is located is greater than 160 MHz and less than or equal to 320 MHz, the frequency band range indicated by the frequency band range indicator is a 320 MHz frequency band, namely, the 320 MHz frequency band in which the RU/MRU is located. The number of entries corresponding to each RU/MRU size is equal to the number of additional RU/MRU size locations in the 320 MHz frequency band range.

The number of indices corresponding to a (2*996+484)-tone RU is equal to the number of 12 (2*6 additional locations shown in Fig. 11) additional locations of a (2*996+484)-tone RU in the 320 MHz frequency band range. Thus, 12 indices are required for the resource block pointer to indicate all (2*996+484) tone RUs in the 320 MHz frequency band range, respectively.

The number of indices corresponding to a 4×996-tone RU is equal to the number of additional 4×996-tone RU locations in the 320 MHz frequency band. Thus, one index (e.g., index 68 shown in Table 7) is required for the resource block pointer to indicate a 4×996-tone RU.

The number of indices corresponding to a 3×996-tone RU is equal to the number of 4 (as shown in Fig. 12) additional locations of a 3×996-tone RU in the 320 MHz frequency band range. Thus, four indices (e.g., indices 103-106 shown in Table 7) are required for the resource block pointer to indicate all 3×996-tone RUs in the 320 MHz frequency band range.

The number of indices corresponding to a (3*996+484)-tone RU is equal to the number 8 (as shown in Fig. 13) of additional locations of a (3*996+484)-tone RU in the 320 MHz frequency band range. Thus, eight indices (e.g., indices 107-114 shown in Table 7) are required for the resource block pointer to indicate all the (3*996+484)-tone RUs in the 320 MHz frequency band range.

The number of indices corresponding to a (996+484+242)-tone RU is equal to the number of 8 (2*the number of 4 additional locations shown in Fig. 14) additional locations of a (996+484+242)-tone RU in the 320 MHz frequency band. Thus, eight indices (e.g., indices 115-122 shown in Table 7) are required for the resource block pointer to indicate all the (996+484+242)-tone RUs in the 320 MHz frequency band.

It can be learned that the two implementations affect the number of indices corresponding to each of the (2*996+484)-tone RU and the 3*996-tone RU. For example, in one implementation 1, the number of indices corresponding to the (2*996+484)-tone RU is 6, and the number of indices corresponding to the 3*996-tone RU is 1; and in one implementation 2, the number of indices corresponding to the (2*996+484)-tone RU is 12, and the number of indices corresponding to the 3*996-tone RU is 4.

In one implementation, indices corresponding to RUs/MRUs of the same size may be determined based on a one-to-one correspondence between the indices in ascending order and the starting frequencies of the RUs/MRUs in ascending order. If the starting frequencies of the set of MRUs are the same, the order of the starting frequencies of the second RUs is used for the determination, and so on. If the starting frequencies of all RUs in the set of MRUs are the same, the order of the sizes of the last RUs with the same starting frequency is used for the arrangement. For example, the indices corresponding to the (2*996+484)-tone RUs in one implementation 1 are indices 97-102, and the starting frequencies of all the following (2*996+484)-tone RUs in the 240 MHz frequency band range are, in ascending order: the first combination in the second row shown in Fig. 11, the first combination in the third row shown in Fig. 11, the second combination in the third row shown in Fig. 11, the first combination in the first row shown in Fig. 11, the second combination in the second row shown in Fig. 11, and the second combination in the first row shown in Fig. 11. Thus, index 97 represents the first combination in the second row shown in Fig. 11, index 98 represents the first combination in the third row shown in Fig. 11, index 99 represents the second combination in the third row shown in Fig. 11, index 100 represents the first combination in the first row shown in Fig. 11, index 101 represents the second combination in the second row shown in Fig. 11, and index 102 represents the second combination in the first row shown in Fig. 11.

In another implementation, indices corresponding to RUs/MRUs of the same size may be determined based on a one-to-one correspondence between indices in ascending order and starting frequencies in ascending order of punctured RUs (namely, RUs not included in the RU/MRU) in the bandwidth in which the RU/MRUs are located. For example, in the 3×996-tone RU shown in Fig. 12, the punctured RU in the bandwidth in which the 3×996-tone RU shown in the first row is located has the lowest frequency, and thus the 3×996-tone RU shown in the first row corresponds to the smallest index; the punctured RU in the passband in which the 3×996-tone RU shown in the second row is located has the second lowest frequency, and thus the 3×996-tone RU shown in the second row corresponds to the second lowest index; the punctured RU in the passband in which the 3×996-tone RU shown in the third row is located has the second highest frequency, and thus the 3×996-tone RU shown in the third first row corresponds to the second highest index; and the punctured RU in the passband in which the 3×996-tone RU shown in the fourth row is located has the highest frequency, and thus the 3×996-tone RU shown in the fourth row corresponds to the highest index.

In another implementation, indices corresponding to RUs/MRUs of the same size may be determined based on a one-to-one correspondence between the indices in ascending order and the frequencies of the weight RUs in the RU/MRU in descending order. For example, in the 3×996-tone RU shown in Fig. 12, all three 996-tone RUs in the 3×996-tone RU shown in the first row have the highest frequency, and thus the 3×996-tone RU shown in the first row corresponds to the smallest index; two 996-tone RUs in the 3*996-tone RU shown in the second row have the second highest frequency, and thus the 3*996-tone RU shown in the second row corresponds to the second smallest index; one RU in the 3×996-tone RU shown in the third row has the second lowest frequency, and thus the 3×996-tone RU shown in the third row corresponds to the second highest index; and all three 996-tone RUs in the 3*996-tone RU shown in the fourth row have the lowest frequency, and thus the 3*996-tone RU shown in the fourth row corresponds to the highest index.

It can be learned that in the resource block designation method 310, after determining the allocated RU/MRU based on the frequency band range indicator and the resource block indicator, the station can determine, based on the size of the RU/MRU corresponding to the index indicated by the resource block indicator in Table 7, the frequency band range in which the RU/MRU is located and which is indicated by the frequency band range indicator, and then determine, in the frequency band range, the RU/MRU corresponding to the index indicated by the resource block indicator. It can be learned that the resource block indicator can directly indicate the RU/MRU in the frequency band range. When more information is carried using the frequency band range indicator, the logic is simplified as much as possible, which can reduce the processing complexity of the station.

In addition, in the above-mentioned methods of specifying resource blocks, the resource block allocation subfield occupies N bits, the frequency band range indicator occupies bit 0 - bit x, and the resource block indicator occupies bit (x+1) - bit N. The value x refers to the bandwidth and the frequency band range indicated by the frequency band range indicator, and both values of N and x are greater than 0. For example, in the method 110 of specifying resource blocks, x is 1, in the method 120 of specifying resource blocks, x is 2, or in the method 310 of specifying resource blocks, x is 2.

In addition, in the above embodiments, the locations of the frequency band range indicator and the resource block indicator in N bits can be interchanged. That is, in the above embodiments, the first two or three bits indicating the frequency band range indicator and the remaining bits indicating the resource block indicator can be replaced as follows: the first eight or seven bits indicating the resource block indicator and the remaining bits indicating the frequency band range indicator.

In addition, the "frequency band range" in this specification may also be referred to as a "frequency range", and the frequency band range indicator may also be referred to as a frequency range indicator. The frequency range or frequency band range corresponds to a continuous frequency.

Embodiment 6: The method 410 for specifying resource blocks is mainly described in Embodiment 6.

The present application further provides a method 410 for indicating resource blocks. In this method, the resource block allocation subfield corresponding to a station occupies N bits, and the index indicated by the N bits directly represents the absolute location of the MRU in the bandwidth; and then the station can directly know the allocated MRU by querying a table based on the index indicated by the N bits. In other words, the method no longer makes the following distinction: the first part of the bits indicates a frequency band range with a certain granularity, and the second part of the bits indicates a combination mode related to the frequency band range. Thus, the method can be referred to as a method for indicating a combination of resource blocks. Thus, the logic of the method for indicating resource blocks in the present application is further simplified to further reduce the processing complexity of the station. The method is described below.

Fig. 19 shows a flow chart of a method 410 for specifying resource blocks according to this embodiment of the present application. The method 410 for specifying resource blocks shown in Fig. 19 may include, but is not limited to, the following steps.

S411 The access point determines the trigger frame.

The trigger frame includes a resource block allocation subfield used to indicate the resource allocation of the station, the resource block allocation subfield occupies N bits, and the index indicated by the N bits directly represents the absolute location of the MRU resource block set in the bandwidth, where N is greater than 0.

S412 The access point sends a wake-up frame.

S413 Station receives trigger frame.

S414 The station determines the MRU directly corresponding to the index specified by the N bits and uses the MRU as the MRU allocated to the station.

In step S414, the station may request a resource block allocation table for the MRU corresponding to an index indicated by N bits, and use the MRU as the MRU allocated to the station. The index indicated by N bits is N bits in the resource block allocation subfield corresponding to the station.

For example, but not limitation, the resource block allocation table may be shown in Table 8. N bits are used to indicate the absolute location of each RU/MRU in the bandwidth, where N is 9, and are denoted as B0-B8.

Table 8. Resource Block Allocation Table B8-B0 of RU Allocation subfield Size RU Number of records 0-143 26 144 144-207 52 64 208-239 106 32 240-255 242 16 256-263 484 8 264-267 996 4 268-269 2×996 2 270 4×996 1 271-318 52+26 12*4 319-350 106+26 8*4 351-366 484+242 4*4 367-374 996+484 2*4 375-386 2×996+484 12=6*2 387-390 3×996 4 391-398 3×996+484 8 399-414 996+484+242 8+8

As shown in Fig. 3, there are 36 locations for a 26-tone RU in the 80 MHz band range, and thus there are 144 (namely, 4*36) locations for a 26-tone RU in the 320 MHz band range. Thus, as shown in Table 8, B8-B0 need to indicate one of the indices 0 to 143 to indicate one 26-tone RU.

As shown in Fig. 3, there are 16 locations for a 52-tone RU in the 80 MHz band range, and thus there are 64 (namely 4*16) locations for a 52-tone RU in the 320 MHz band range. Thus, B8-B0 must specify one of the indices 144 to 207 to specify one 52-tone RU.

As shown in Fig. 3, there are eight locations for a 106-tone RU in the 80 MHz band range, and thus there are 32 (namely, 4*8) locations for a 106-tone RU in the 320 MHz band range. Thus, B8-B0 must indicate one of the indices 208 to 239 to indicate one 106-tone RU.

As shown in Fig. 3, there are four locations for a 242-tone RU in the 80 MHz band, and thus there are 16 (namely, 4*4) locations for a 242-tone RU in the 320 MHz band. Thus, B8-B0 must specify one of the indices 240 to 255 to specify one 242-tone RU.

As shown in Fig. 3, there are two locations for a 484-tone RU in the 80 MHz band, and thus there are eight (namely, 4*2) locations for a 484-tone RU in the 320 MHz band. Thus, B8-B0 must specify one of the indices 256-263 to specify one 484-tone RU.

As shown in Fig. 3, there is one location for a 996-tone RU in the 80 MHz band range, and thus there are four locations for a 996-tone RU in the 320 MHz band range. Thus, B8-B0 must specify one of the indices 264-267 to specify one 996-tone RU.

2*996-tone RU cannot overlap two 160 MHz band ranges, in other words, the band range where 2*996-tone RU is located can only be 160 MHz primary channel or 160 MHz secondary channel, and thus there are two locations for 2*996-tone RU in 320 MHz band range. Therefore, B8-B0 must specify one of indexes 268 and 269 to specify one 2*996-tone RU.

There is only one 4×996-tone RU in the 320 MHz band. Therefore, B8-B0 can indicate one index 270 so that the station can know that the allocated RU is a 4×996-tone RU.

There are three combinations shown in Fig. 7 for a (52+26)-tone RU in the 20 MHz band range, and thus there are 48 (namely 16*3) combinations for a (52+26)-tone RU in the 320 MHz band range. Thus, B8-B0 must specify one of the indices 271-318 to specify one (52+26)-tone RU.

There are two combinations shown in Fig. 8 for a (106+26)-tone RU in the 20 MHz band range, and thus there are 32 (namely 16*2) combinations for a (106+26)-tone RU in the 320 MHz band range. Thus, B8-B0 must indicate one of the indices 319-350 to indicate one (106+26)-tone RU.

There are four combinations shown in Fig.9 for a (484+242)-tone RU in the 80 MHz band range, and thus 16 (namely 4*4) combinations for a (484+242)-tone RU in the 320 MHz band range. Thus, B8-B0 must specify one of the indices 351-366 to specify one (484+242)-tone RU.

The (996+484)-tone RU can be located in the primary channel of 160 MHz or the secondary channel of 160 MHz, and thus there are four combinations shown in Fig. 10 for the (996+484)-tone RU in the frequency band of 160 MHz, and thus there are eight (namely, 2*4) combinations for the (996+484)-tone RU in the frequency band of 320 MHz. Thus, B8-B0 must indicate one of the indices 367-374 to indicate one (996+484)-tone RU.

The (2*996+484)-tone RU is transmitted in the 240 MHz band range and thus can exist only in the 240 MHz band range formed by puncturing the lowest or highest 80 MHz band in the 320 MHz band range. There are six combinations shown in Fig. 11 for the (2*996+484)-tone RU in the 240 MHz band range, and thus there are 12 (namely, 2*6) combinations for the (2*996+484)-tone RU in the 320 MHz band range. Thus, B8-B0 must specify one of the indices 375-386 to specify one (2*996+484)-tone RU.

There are four combinations shown in Fig. 12 for a 3*996-tone RU in the 320 MHz frequency band. Thus, B8-B0 must specify one of the indices 387-390 to specify one 3*996-tone RU.

There are eight combinations shown in Fig. 13 for (3*996+484)-tone RUs in the 320 MHz frequency band. Thus, B8-B0 must specify one of the indices 391-398 to specify one (3*996+484)-tone RU.

When the (484+242)-tone RU is located in the primary 80 MHz channel in the frequency band of 160 MHz, there are four combinations shown in Fig. 14 for the (996+484+242)-tone RU in the frequency band of 160 MHz. Accordingly, when the (484+242)-tone RU is located in the secondary 80 MHz channel in the frequency band of 160 MHz, there are also four combinations for the (996+484+242)-tone RU in the frequency band of 160 MHz. Thus, there are eight combinations for the (996+484+242)-tone RU in the frequency band of 160 MHz. In addition, the (996+484+242)-tone RU can only be located in the lowest 160 MHz band or in the upper 160 MHz band, and thus there are 16 (namely 2*8) combinations for the (996+484+242)-tone RU in the 320 MHz band. Thus, B8-B0 must specify one of the indices 399 to 414 to specify one (996+484+242)-tone RU.

It can be learned that in the method 410 of specifying resource blocks in the resource block allocation subfield, no distinction is made for a bit specifically used to specify a specific frequency band range, and a corresponding RU/MRU can be directly searched in the resource block allocation table based on the index specified by N bits in the resource block allocation subfield. Thus, the processing logic is greatly simplified, which can reduce the processing complexity of the station.

The present application additionally provides a method for indicating resource blocks. The difference between the method for indicating resource blocks and the method 410 for indicating resource blocks is that the resource block allocation subfield occupies 8 bits, and the resource block allocation subfield is used to indicate the RU/MRU related to the 160 MHz frequency band. The station can know, using another parameter or signaling, whether the 160 MHz that are associated with the RU/MRU and that are indicated in the resource block allocation subfield are the primary 160 MHz or the secondary 160 MHz. If the 8 bits occupied by the resource block allocation subfield are designated as B7-B0, then B7-B0 are used to indicate all RU/MRUs in the primary 160 MHz channels or in the secondary 160 MHz channels. For example, the RU/MRUs designated from B7 to B0 may be listed in Table 9.

Table 9. Resource Block Allocation Table B7-B0 of RU Allocation subfield Size RU Number of records 0-71 26 36*2 72-103 52 16*2 104-119 106 8*2 120-127 242 4*2 128-131 484 2*2 132-133 996 1*2 134 2×996 1 135 4×996 1 136-159 52+26 12*2 160-175 106+26 8*2 176-183 484+242 4*2 184-187 996+484 4 188-199 2×996+484 12 200-203 3×996 4 204-211 3×996+484 8 212-219 996+484+242 8

As shown in Fig. 3, there are 36 locations for a 26-tone RU in the 80 MHz band range, and thus there are 72 (namely 2*36) locations for a 26-tone RU in the 160 MHz band range. Thus, as shown in Table 9, B7-B0 need to specify one of the indices 0-71 to specify one 26-tone RU.

As shown in Fig. 3, there are 16 locations for a 52-tone RU in the 80 MHz band range, and thus there are 32 (namely 2*16) locations for a 52-tone RU in the 160 MHz band range. Thus, B7-B0 must specify one of the indices 72-103 to specify one 52-tone RU.

As shown in Fig. 3, there are eight locations for a 106-tone RU in the 80 MHz band range, and thus there are 16 (namely, 2*8) locations for a 106-tone RU in the 160 MHz band range. Thus, B7-B0 must specify one of the indices 104-119 to specify one 106-tone RU.

As shown in Fig. 3, there are four locations for a 242-tone RU in the 80 MHz band, and thus there are eight (namely, 2*4) locations for a 242-tone RU in the 160 MHz band. Thus, B7-B0 must specify one of the indices 120-127 to specify one 242-tone RU.

As shown in Fig. 3, there are two locations for a 484-tone RU in the 80 MHz band, and thus there are four (namely, 2*2) locations for a 484-tone RU in the 160 MHz band. Thus, B7-B0 must specify one of the indices 128-131 to specify one 484-tone RU.

As shown in Fig. 3, there is one location for a 996-tone RU in the 80 MHz band range, and thus there are two locations for a 996-tone RU in the 160 MHz band range. Thus, B7-B0 must specify one of the indices 132 and 133 to specify one 996-tone RU.

2*996-tone RU cannot overlap two 160 MHz band ranges, in other words, the band range where 2*996-tone RU is located can only be 160 MHz primary channel or 160 MHz secondary channel, and thus there is one location for 2*996-tone RU in 160 MHz band range. Therefore, B7-B0 should indicate index 134 to indicate 2*996-tone RU.

There is only one 4×996-tone RU in the 320 MHz band. Therefore, B7-B0 can indicate one index 135 so that the station can know that the allocated RU is a 4×996-tone RU.

There are three combinations shown in Fig. 7 for a (52+26)-tone RU in the 20 MHz band range, and thus there are 24 (namely 8*3) combinations for a (52+26)-tone RU in the 160 MHz band range. Thus, B7-B0 must specify one of the indices 136-159 to specify one (52+26)-tone RU.

There are two combinations shown in Fig. 8 for a (106+26)-tone RU in the 20 MHz band range, and thus there are 16 (namely 8*2) combinations for a (106+26)-tone RU in the 160 MHz band range. Thus, B7-B0 must specify one of the indices 160-175 to specify one (106+26)-tone RU.

There are four combinations shown in Fig.9 for a (484+242)-tone RU in 80 MHz, and thus there are eight (namely 2*4) combinations for a (484+242)-tone RU in the 160 MHz frequency band. Thus, B7-B0 must specify one of the indices 176-183 to specify one (484+242)-tone RU.

The (996+484)-tone RU can be located in the primary 160 MHz channel or the secondary 160 MHz channel, and thus there are four combinations shown in Fig. 10 for the (996+484)-tone RU in the 160 MHz frequency band range. Thus, B7-B0 must specify one of the indices 184-187 to specify one (996+484)-tone RU.

The (2*996+484)-tone RU is transmitted in the 240 MHz bandwidth range and thus can exist only in the 240 MHz bandwidth range formed by puncturing the lowest or highest 80 MHz bandwidth in the 320 MHz bandwidth range. There are six combinations shown in Fig. 11 for the (2*996+484)-tone RU in the 240 MHz bandwidth range, and thus there are 12 (namely, 2*6) combinations for the (2*996+484)-tone RU in the 320 MHz bandwidth range. All 12 combinations of the (2*996+484)-tone RU overlap the 160 MHz primary channels or the 160 MHz secondary channels, thus there are 12 combinations for the (2*996+484)-tone RU in the 160 MHz bandwidth range. Thus, B7-B0 must specify one of the indices 188-195 to specify one (2*996+484)-tone RU.

There are four combinations shown in Fig. 12 for a 3*996-tone RU in a 320 MHz band range, and all four combinations are for a 160 MHz primary channel or a 160 MHz secondary channel. Thus, there are four combinations for a 3*996-tone RU in a 160 MHz band range. Thus, B7-B0 must specify one of the indices 200-203 to specify one 3*996-tone RU.

There are eight combinations shown in Fig. 13 for (3*996+484)-tone RUs in the 320 MHz band range, and all eight combinations are related to the 160 MHz primary channel or the 160 MHz secondary channel. Thus, B7-B0 must specify one of the indices 204-211 to specify one (3*996+484)-tone RU.

When the (484+242)-tone RU is located in the primary 80 MHz channel in the frequency band of 160 MHz, there are four combinations shown in Fig. 14 for the (996+484+242)-tone RU in the frequency band of 160 MHz. Accordingly, when the (484+242)-tone RU is located in the secondary 80 MHz channel in the frequency band of 160 MHz, there are also four combinations for the (996+484+242)-tone RU in the frequency band of 160 MHz. Thus, there are eight combinations for the (996+484+242)-tone RU in the frequency band of 160 MHz. Thus, B7-B0 must indicate one of the indices 212-219 to indicate one (996+484+242)-tone RU.

It can be learned that in the resource block indicator method, 8 bits in the resource block allocation subfield can be used to indicate all RUs/MRUs in the 160 MHz band. Thus, the number of required bits is reduced and the signaling overhead is reduced.

In the above-mentioned embodiments, the descriptions of each embodiment focus on the corresponding tasks. For a part that is not described in detail in an embodiment, reference should be made to the corresponding descriptions in other embodiments. In addition, various embodiments can be combined to indicate RUs/MRUs allocated to a station. For example, in the resource block indicating method 210 or the resource block indicating method 220, the content that relates to the resource block indicator and the frequency band indicator is applicable to the allocation of some MRUs in the resource block indicating method 110 or the resource block indicating method 120. For example, in the description of the resource block designation method 210, it is indicated that if the frequency band range indicated by the frequency band range indicator is the first 80 MHz frequency band in the 320 MHz frequency band range, then the MRU indicated by the resource block designation method 210, if a 3*996-tone RU corresponding to the second 80 MHz frequency band to the fourth 80 MHz frequency band, which are different from the first 80 MHz frequency band in the 320 MHz frequency band range, is applied to the resource block designation method 110, the indices 99 to 101 shown in Table 4 can be replaced by the index 99. In this way, the station can determine the location of the allocated 3*996-tone RU by referring to the value of the frequency band range indicator in the resource block designation method 210.

Thus, the size of each RU/MRU, the corresponding order of the indices, and the number of indices in Table 4, Table 6, Table 8, or Table 9 are not fixed, and corresponding changes can be made with reference to the above-mentioned embodiments. In addition, Table 3 and Table 4 are independent of each other, and Table 5 and Table 6 are independent of each other. As described above, the values of the frequency band range indices corresponding to some RU/MRUs shown in Table 4 may differ from the values shown in Table 3.

In the above-mentioned embodiments provided in the present application, the methods provided in the embodiments of the present application are described from the perspective of an access point and a station. In order to implement the functions in the methods provided in the above-mentioned embodiments of the present application, each access point and station may include a hardware structure and/or a software module to implement the above functions using a hardware structure, a software module, or a combination of a hardware structure and a software module. A function of the above functions may be implemented as a hardware structure, a software module, or a combination of a hardware structure and a software module.

Fig. 20 shows a schematic diagram of the structure of a communication device 500 according to an embodiment of the present application. The communication device 500 shown in Fig. 20 may include a communication unit 501 and a processing unit 502. The communication unit 501 may include a sending unit and a receiving unit. The sending unit is configured to implement a sending function, the receiving unit is configured to implement a receiving function, and the communication unit 501 may implement a sending function and/or a receiving function. The communication unit may also be described as a transceiver unit.

The communication device 500 may be a station, a device in a station, an access point, or a device in an access point.

In one implementation, the communication device 500 may perform a related operation performed by the station in the method 110 for indicating resource blocks in the above-mentioned embodiment of the method, and the communication device 500 may include a communication unit 501 and a processing unit 502.

The communication unit 501 is configured to receive a trigger frame from the access point.

The processing unit 502 is configured to determine the allocated RU/MRU based on the frequency band range indicator and the resource block indicator.

Alternatively, the communication device 500 can perform a related operation performed by the access point in the method 110 for indicating resource blocks in the above-mentioned embodiment of the method. The processing unit 502 is configured to determine the trigger frame. The communication unit 501 is configured to send the trigger frame.

In this implementation, the trigger frame includes a resource block allocation subfield used to indicate the resource allocation of the station. The resource block allocation subfield includes a frequency band range indicator and a resource block indicator. The resource block indicator is used to indicate the RU/MRU allocated to the station. The frequency band range indicator is used to indicate the 80 MHz band in which the smallest RU in the RU/MRU indicated by the resource block indicator is located.

It can be learned that the communication device 500 can allocate the MRU to the station so that the MRU is allocated more flexibly, which contributes to improving the utilization of the frequency band. In addition, the 80 MHz frequency band indicated by the frequency band range indicator is the 80 MHz frequency band in which the smallest RU in the MRU is located. Compared with the method in which the frequency band range indicator indicates only the lowest range of the 80 MHz frequency bands that belongs to the MRU, the communication device 500 can reduce the number of indices required for the resource block indicator to indicate each MRU.

In another implementation, the communication device 500 may perform a related operation performed by the station in the method 120 for indicating resource blocks in the above-mentioned embodiment of the method, and the communication device 500 may include a communication unit 501 and a processing unit 502.

The communication unit 501 is configured to receive a trigger frame from the access point.

The processing unit 502 is configured to determine the allocated RU/MRU based on the frequency band range indicator and the resource block indicator.

Alternatively, the communication device 500 can perform a related operation performed by the access point in the method 120 for indicating resource blocks in the above-mentioned embodiment of the method. The processing unit 502 is configured to determine the trigger frame. The communication unit 501 is configured to send the trigger frame.

In this implementation, the trigger frame includes a resource block allocation subfield used to indicate the resource allocation of the station. The resource block allocation subfield includes a frequency band range indicator and a resource block indicator. The resource block indicator is used to indicate the RU/MRU allocated to the station. The frequency band range indicator is used to indicate the 40 MHz band in which the smallest RU in the RU/MRU indicated by the resource block indicator is located.

It can be learned that the communication device 500 can allocate the MRU to the station so that the MRU is allocated more flexibly, which contributes to improving the utilization of the frequency band. In addition, the 40 MHz frequency band indicated by the frequency band range indicator is the 40 MHz frequency band in which the smallest RU in the MRU is located. Compared with the method in which the frequency band range indicator indicates only the lowest 80 MHz frequency band range that belongs to the MRU, the communication device 500 can reduce the number of indices required for the resource block indicator so as to indicate each MRU.

In another embodiment, the communication device 500 may perform a related operation performed by the station in the method 210 for indicating resource blocks in the above-mentioned embodiment of the method, and the communication device 500 may include a communication unit 501 and a processing unit 502.

The communication unit 501 is configured to receive a trigger frame from the access point.

The processing unit 502 is configured to determine the allocated RU/MRU based on the frequency band range indicator and the resource block indicator.

Alternatively, the communication device 500 can perform a related operation performed by the access point in the method 210 for indicating resource blocks in the above-mentioned embodiment of the method. The processing unit 502 is configured to determine the trigger frame. The communication unit 501 is configured to send the trigger frame.

In this implementation, the trigger frame includes a resource block allocation subfield used to indicate a resource allocation to the station, the resource block allocation subfield includes a frequency band range indicator and a resource block indicator, the resource block indicator is used to indicate an MRU allocated to the station, and the frequency band range indicator is used to indicate a frequency band range in the bandwidth in which some or all of the RUs other than the MRUs are located.

It can be learned that, in the communication device 500, the MRU to be indicated by the resource block pointer is determined from a frequency band range smaller than the bandwidth. Thus, compared with the case where the MRU to be indicated by the resource block pointer is determined from a frequency band range corresponding to the bandwidth, the number of indices to be indicated by the resource block pointer is reduced.

In another implementation, the communication device 500 can perform a related operation performed by the station in the resource block indicating method 220 in the above-mentioned embodiment of the method, or the communication device 500 can perform a related operation performed by the access point in the resource block indicating method 220 in the above-mentioned embodiment of the method. The difference between the trigger frame in this implementation and the trigger frame in the resource block indicating method 210 is that in this implementation, the resource block indicator is used to indicate the multi-resource unit MRU allocated to the station, the frequency band range, the frequency band range indicator is used to indicate the frequency band range, and the MRU includes the remaining RUs in the frequency band range, in a bandwidth different from the frequency band range indicated by the frequency band range indicator.

It can be learned that the MRU indicated by the resource block indicator is a combination of the remaining RUs in the frequency band range, in a bandwidth different from the frequency band range indicated by the frequency band range indicator. Thus, compared with the case where the MRU to be indicated by the resource block indicator is determined from the frequency band range corresponding to the bandwidth, the communication device 500 can reduce the number of indices to be indicated by the resource block indicator.

In another embodiment, the communication device 500 may perform a related operation performed by the station in the resource block designation method 310 in the above-mentioned embodiment of the method, and the communication device 500 may include a communication unit 501 and a processing unit 502.

The communication unit 501 is configured to receive a trigger frame from the access point.

The processing unit 502 is configured to determine the allocated RU/MRU based on the frequency band range indicator and the resource block indicator.

Alternatively, the communication device 500 can perform a related operation performed by the access point in the method 310 for indicating resource blocks in the above-mentioned embodiment of the method. The processing unit 502 is configured to determine the trigger frame. The communication unit 501 is configured to send the trigger frame.

In this implementation, the trigger frame includes a resource block allocation subfield used to indicate a resource allocation to the station, the resource block allocation subfield includes a frequency band range indicator and a resource block indicator, the resource block indicator is used to indicate the MRU allocated to the station, and the frequency band range indicator is used to indicate the range of the frequency band in which the MRU indicated by the resource block indicator is located.

It can be learned that in the communication device 500, the resource block pointer can indicate only RU/MRU in the frequency band range, and thus the number of indices that need to be indicated by the resource block pointer to indicate the MRU size is reduced. In other words, in the communication device 500, the frequency band range pointer can carry more information, and the logic of the resource block pointer is simplified as much as possible, which contributes to reducing the processing complexity of the station.

In another embodiment, the communication device 500 may perform a related operation performed by the station in the resource block designation method 410 in the above-mentioned embodiment of the method, and the communication device 500 may include a communication unit 501 and a processing unit 502.

The communication unit 501 is configured to receive a trigger frame from the access point.

The trigger frame includes a resource allocation subfield used to indicate the resource allocation of the station, the resource allocation subfield occupies N bits, and the index indicated by the N bits directly represents the absolute location of the MRU in the bandwidth where N is greater than 0.

The processing unit 502 is configured to: determine the MRU directly corresponding to the index indicated by the N bits, and use the MRU as the MRU allocated to the station.

Alternatively, the communication device 500 can perform a related operation performed by the access point in the method 410 for indicating resource blocks in the above-mentioned embodiment of the method. The processing unit 502 is configured to determine a trigger frame. The communication unit 501 is configured to send the trigger frame. The trigger frame includes a resource block allocation subfield used to indicate the allocation of a resource to the station, the resource block allocation subfield occupies N bits, and the index indicated by the N bits directly represents the absolute location of the MRU in the bandwidth, where N is greater than 0.

It can be learned that in the communication device 500, in the resource block allocation subfield, no distinction is made for a bit specifically used to indicate a specific frequency band range, and the corresponding MRU can be directly found based on the index indicated by N bits in the resource block allocation subfield. Thus, the processing logic is greatly simplified, which can reduce the processing complexity of the station.

In addition, the communication device can perform the corresponding implementation in any of the embodiments of the above-mentioned method. The details are not described here.

Fig. 21 shows a schematic diagram of the structure of a communication device 600 according to an embodiment of the present application. The communication device 600 may be an access point, a station, or a chip, a chip system, a processor, etc. that support an access point when implementing the above-mentioned method, or may be a chip, a chip system, a processor, etc. that support a station when implementing the above-mentioned method. The communication device may be configured to implement the methods described in the above-mentioned embodiments of the method. For details, see the descriptions of the above-mentioned embodiments of the method.

The communication device 600 may include one or more processors 601. The processor 601 may be a general-purpose processor, a specialized processor, etc. The processor 601 may be configured to: control the communication device (e.g., an access point, an access point chip, a station, or a station chip), execute a software program, and process data of the software program.

If necessary, the communication device 600 can include one or more memory devices 602. The memory stores instructions 604, and the instructions can be executed in the processor 601, so that the communication device 600 can execute the methods described in the above embodiments of the method. If necessary, the memory 602 can additionally store data. The processor 601 and the memory 602 can be located separately or can be combined together.

If necessary, the communication device 600 may further include a transceiver 605 and an antenna 606. The transceiver 605 may be called a transceiver unit, a transceiver, a transceiver circuit, etc., and is configured to implement a transceiver function. The transceiver 605 may include a receiver and a transmitter. The receiver may be called a receiving machine, a receiver circuit, etc., and is configured to implement a receiving function. The transmitter may be called a transmitting machine, a transmitter circuit, etc., and is configured to implement a sending function.

In one implementation, the communication device 600 may be a station, a device in a station, etc.

In this implementation, in the communication device 600, the transceiver 605 is configured to: perform the operation in step S113 shown in Fig. 6, perform the operation in step S123 shown in Fig. 15, perform the operation in step S213 shown in Fig. 16, perform the operation in step S223 shown in Fig. 17, perform the operation in step S313 shown in Fig. 18, and perform the operation in step S413 shown in Fig. 19; and the processor 601 is configured to: perform the operation in step S114 shown in Fig. 6, perform the operation in step S124 shown in Fig. 15, perform the operation in step S214 shown in Fig. 16, perform the operation in step S224 shown in Fig. 17, perform the operation in step S314 shown in Fig. 18, and perform the operation in step S414 shown in Fig. 19.

In another implementation, the communication device 600 may be an access point, a device within an access point, etc.

In this implementation, in the communication device 600, the transceiver 605 is configured to: perform the operation in step S112 shown in Fig. 6, perform the operation in step S122 shown in Fig. 15, perform the operation in step S212 shown in Fig. 16, perform the operation in step S222 shown in Fig. 17, perform the operation in step S312 shown in Fig. 18, and perform the operation in step S412 shown in Fig. 19; and the processor 601 is configured to: perform the operation in step S111 shown in Fig. 6, perform the operation in step S121 shown in Fig. 15, perform the operation in step S211 shown in Fig. 16, perform the operation in step S221 shown in Fig. 17, perform the operation in step S311 shown in Fig. 18, and perform the operation in step S411 shown in Fig. 19.

It can be learned that the communication device 600 can allocate an MRU to a station so that the MRU is allocated more flexibly to promote the improvement of the frequency band utilization. In addition, the frequency band range indicator in the present application carries more information, and thus the number of indices required for the resource block indicator for indicating each MRU is reduced. Alternatively, the communication device 600 performs a related operation shown in Fig. 19 to simplify the processing logic and reduce the processing load on the station.

For the relevant content of this implementation, see the related content of the above-mentioned embodiments of the method. The details are not described again here.

In another possible embodiment, the transceiver may be a transceiver circuit, an interface, or an interface circuit. The transceiver circuit, the interface, or the interface circuit, configured to implement a sending function and a receiving function, may be separated or may be integrated. The transceiver circuit, the interface, or the interface circuit may be configured to read and write code or data. Alternatively, the transceiver circuit, the interface, or the interface circuit may be configured to transmit or carry a signal.

In another possible embodiment, if necessary, the processor 601 can store instructions 603. When the instructions 603 are executed in the processor 601, the communication device 600 is capable of performing the methods described in the above-mentioned embodiments of the method. The instructions 603 can be fixed in the processor 601. In this case, the processor 601 can be implemented in hardware.

In another possible embodiment, the communication device 600 may include a circuit. The circuit may implement the sending, receiving or communication function in the above-mentioned embodiments of the method.

The processor and transceiver described in this application may be implemented in an integrated circuit (IC), an analog IC, a radio frequency integrated circuit (RFIC), a hybrid signal IC, an application-specific integrated circuit (ASIC), a printed circuit board (PCB), an electronic device, etc.

The communication device in the previous embodiment may be an access point or a station. However, the scope of the communication device described in the present application is not limited to this, and the structure of the communication device may not be limited to Fig. 21. The communication device may be an independent device or part of a relatively large device. For example, the communication device may be:

(1) an independent integrated circuit IC, microcircuit, or microcircuit system or subsystem;

(2) a set including one or more ICs, where, if necessary, the set of ICs may further include a storage component configured to store data and instructions;

(3) ASIC, such as a modem;

(4) a module that can be embedded into another device;

(5) a receiver, an intelligent terminal, a wireless device, a handset, a mobile device, a device installed on a vehicle, a cloud device, an artificial intelligence device, etc.; or

(6) other, etc.

In the case where the communication device can be a microcircuit or a system of microcircuits, it is necessary to refer to the basic diagram of the structure of the microcircuit shown in Fig. 22. The microcircuit 700 shown in Fig. 22 includes a processor 701 and an interface 702. There can be one or more processors 701, and there can be a plurality of interfaces 702.

In the case where the microcircuit is designed with the possibility of implementing the station function in the embodiments of the present application,

The interface 702 is configured to: perform the operation in step S113 shown in Fig. 6, perform the operation in step S123 shown in Fig. 15, perform the operation in step S213 shown in Fig. 16, perform the operation in step S223 shown in Fig. 17, perform the operation in step S313 shown in Fig. 18, and perform the operation in step S413 shown in Fig. 19. The processor 701 is configured to: perform the operation in step S114 shown in Fig. 6, perform the operation in step S124 shown in Fig. 15, perform the operation in step S214 shown in Fig. 16, perform the operation in step S224 shown in Fig. 17, perform the operation in step S314 shown in Fig. 18, and perform the operation in step S414 shown in Fig. 19.

In the case where the microcircuit is designed with the possibility of implementing the access point function in the embodiments of the present application,

The interface 702 is configured to: perform the operation in step S112 shown in Fig. 6, perform the operation in step S122 shown in Fig. 15, perform the operation in step S212 shown in Fig. 16, perform the operation in step S222 shown in Fig. 17, perform the operation in step S312 shown in Fig. 18, and perform the operation in step S412 shown in Fig. 19. The processor 701 is configured to: perform the operation in step S111 shown in Fig. 6, perform the operation in step S121 shown in Fig. 15, perform the operation in step S211 shown in Fig. 16, perform the operation in step S221 shown in Fig. 17, perform the operation in step S311 shown in Fig. 18, and perform the operation in step S411 shown in Fig. 19.

It can be learned that the chip can allocate the MRU to the station, so that the MRU is allocated more flexibly, which can improve the utilization of the frequency band. In addition, the frequency band range indicator in the present application carries more information, and thus the number of indices required for the resource block indicator to indicate each MRU is reduced. Alternatively, the chip performs a related operation shown in Fig. 19 to simplify the processing logic and reduce the processing load on the station.

If necessary, the microcircuit additionally includes a memory 703 connected to the processor 701, and the memory 703 is configured to store program instructions and data that are necessary for the microcircuit.

For the relevant content of this implementation, see the related content of the above-mentioned embodiments of the method. The details are not described again here.

It may be further understood by a person skilled in the art that the various illustrative logical blocks and steps listed in the embodiments of the present application may be implemented using electronic hardware, computer software, or a combination thereof. Whether the functions are implemented using hardware or software depends on the specific applications and the design requirements of the overall system. A person skilled in the art may use various methods to implement the described functions for each specific application, but should not be considered as going beyond the scope of the embodiments of the present application.

The present application additionally provides a machine-readable storage medium. The machine-readable storage medium stores a computer program. When the machine-readable storage medium is executed by a computer, the functions of any of the above-mentioned embodiments of the method are implemented.

The present application additionally provides a computer program product. When the computer program product is executed by a computer, the functions of any of the above-mentioned embodiments of the method are implemented.

All or some of the above embodiments may be implemented using software, hardware, firmware, or any combination thereof. When software is used to implement the embodiments, all or some of the embodiments may be implemented as a computer program product. The computer program product includes one or more computer instructions. When the computer instructions are loaded and executed on a computer, a procedure or functions according to the embodiments of the present application are fully or partially generated. The computer may be a general-purpose computer, a specialized computer, a computer network, or another programmable device. The computer instructions may be stored on a computer-readable storage medium or may be transmitted from a computer-readable storage medium to another computer-readable storage medium. For example, computer instructions may be transmitted from a website, computer, server, or data center to another website, computer, server, or data center by wire (e.g., coaxial cable, fiber optic cable, or digital subscriber line (DSL)) or wireless (e.g., using infrared radiation, radio waves, or microwaves). The computer-readable storage medium may be any usable storage medium accessible to a computer or a data storage device, such as a server or data center, that incorporates one or more usable storage media. The storage medium used may be a magnetic storage medium (e.g., a floppy disk, a hard disk, or magnetic tape), an optical storage medium (e.g., a high-density digital video disc (DVD)), a semiconductor storage medium (e.g., a solid-state drive (SSD)) or the like.

One skilled in the art may appreciate that various numerals such as "first" and "second" in this application are used merely for distinction for ease of description and are not used to limit the scope of embodiments of this application or to represent a sequence.

The correspondences shown in the tables in the present application may be configured or may be specified. The values of the information in the tables are merely examples, and other values may be configured. This is not limited in the present application. When the correspondence between the information and each parameter is configured, not all of the correspondences shown in the tables need to be configured. For example, in the tables of the present application, the correspondences shown in some rows may not be configured. As another example, appropriate deformations and adjustments such as splitting and combining can be performed in the above tables. The names of the parameters shown in the headers of the previous tables may also be other names that can be understood by the communication device, and the values or representation methods of the parameters may also have other values or representation methods that can be understood by the communication device. When implementing the above tables, another data structure may be used, such as an array, a queue, a container, a stack, a linear table, a pointer, a linked list, a tree, a graph, a structure, a class, a pile, or a hash table may be used.

"Predetermining" in this application may be considered as "defining", "predetermining", "saving", "pre-saving", "pre-coordinating", "pre-configuring", "fixing" or "pre-coordinating".

A person skilled in the art may know that in combination with the examples described in the embodiments disclosed in this description, the blocks and steps of the algorithm may be implemented using electronic equipment or a combination of computer software and electronic hardware. Whether the functions are performed by hardware or software depends on the specific applications and design limitations of the technical solutions. A person skilled in the art may use different ways of implementing the described functions for each specific application, but it should not be considered that the implementation goes beyond the scope of the present application.

It may be clear and understandable to a person skilled in the art that, for the purpose of a convenient and brief description of the detailed working process of the above-mentioned systems, devices and units, reference may be made to the corresponding process described in the above-mentioned embodiments of the method. The details are not described again here.

The above descriptions are merely specific implementations of the present application, but are not intended to limit the scope of protection of the present application. Any variation or replacement easily calculated by a person skilled in the art within the technical scope disclosed in the present application shall fall within the scope of protection of the present application. Thus, the scope of protection of the present application shall correspond to the scope of protection of the claims.

Claims (132)

1. A method for specifying resource blocks, in which the method comprises: reception, by a station (STA), of a trigger frame from an access point, where the trigger frame contains a resource block allocation subfield used to indicate the resource allocation of the station, the resource block allocation subfield contains a frequency band range indicator and a resource block indicator, the resource block indicator is used to indicate the multi-resource unit (MRU) allocated to the station, and the frequency band range indicator is used to indicate the frequency band range in which the smallest resource unit RU in the MRU is located; and determination by the station of the allocated MRU based on the frequency band indicator and the resource block indicator, wherein the MRU indicated by the resource block indicator comprises one resource block (26-tone RU) whose size is 26 subcarriers and one resource block (52-tone RU) whose size is 52 subcarriers, and the frequency band range indicated by the frequency band range indicator is the frequency band range in which the 26-tone RU is located; or The MRU indicated by the resource block indicator contains one RU (106-tone RU) whose size is 106 subcarriers and one 26-tone RU, and the frequency band range indicated by the frequency band range indicator is the frequency band range in which the 26-tone RU is located; or The MRU indicated by the resource block indicator contains one resource block (484-tone RU) whose size is 484 subcarriers and one resource block (242-tone RU) whose size is 242 subcarriers, and the frequency band range indicated by the frequency band range indicator is the frequency band range in which the 242-tone RU is located; or The MRU indicated by the resource block indicator contains one resource block (996-tone RU) whose size is 996 subcarriers and one 484-tone RU, and the frequency band range indicated by the frequency band range indicator is the frequency band range in which the 484-tone RU is located; or The MRU indicated by the resource block designator contains two 996-tone RUs and one 484-tone RU, and the frequency band range indicated by the frequency band range designator is the frequency band range in which the 484-tone RU is located; or The MRU indicated by the resource block designator contains two 996-tone RUs, and the frequency band range indicated by the frequency band range designator is the frequency band range in which one of the 996-tone RUs is located; or The MRU indicated by the resource block designator contains three 996-tone RUs and one 484-tone RU, and the frequency band range indicated by the frequency band range designator is the frequency band range in which the 484-tone RU is located; or The MRU indicated by the resource block indicator includes one 996-tone RU, one 484-tone RU, and one 242-tone RU, and the frequency band range indicated by the frequency band range indicator is the frequency band range in which the 242-tone RU is located. 2. A method for specifying resource blocks, in which the method comprises: definition, access point, trigger frame, where the trigger frame contains a resource block allocation subfield used to indicate the resource allocation of the station (STA), the resource block allocation subfield contains a frequency band range indicator and a resource block indicator, the resource block indicator is used to indicate the multi-resource unit (MRU) allocated to the corresponding station, and the frequency band range indicator is used to indicate the frequency band in which the smallest resource unit RU in the MRU indicated by the resource block indicator is located; and sending, by the access point, the trigger frame, wherein the MRU indicated by the resource block indicator comprises one resource block (26-tone RU) whose size is 26 subcarriers and one resource block (52-tone RU) whose size is 52 subcarriers, and the frequency band range indicated by the frequency band range indicator is the frequency band range in which the 26-tone RU is located; or The MRU indicated by the resource block indicator contains one RU (106-tone RU) whose size is 106 subcarriers and one 26-tone RU, and the frequency band range indicated by the frequency band range indicator is the frequency band range in which the 26-tone RU is located; or The MRU indicated by the resource block indicator contains one resource block (484-tone RU) whose size is 484 subcarriers and one resource block (242-tone RU) whose size is 242 subcarriers, and the frequency band range indicated by the frequency band range indicator is the frequency band range in which the 242-tone RU is located; or The MRU indicated by the resource block indicator contains one resource block (996-tone RU) whose size is 996 subcarriers and one 484-tone RU, and the frequency band range indicated by the frequency band range indicator is the frequency band range in which the 484-tone RU is located; or The MRU indicated by the resource block designator contains two 996-tone RUs and one 484-tone RU, and the frequency band range indicated by the frequency band range designator is the frequency band range in which the 484-tone RU is located; or The MRU indicated by the resource block designator contains two 996-tone RUs, and the frequency band range indicated by the frequency band range designator is the frequency band range in which one of the 996-tone RUs is located; or The MRU indicated by the resource block designator contains three 996-tone RUs and one 484-tone RU, and the frequency band range indicated by the frequency band range designator is the frequency band range in which the 484-tone RU is located; or The MRU indicated by the resource block indicator includes one 996-tone RU, one 484-tone RU, and one 242-tone RU, and the frequency band range indicated by the frequency band range indicator is the frequency band range in which the 242-tone RU is located. 3. The method according to claim 1 or 2, in which The Bandwidth Range Indicator is used to indicate the 80 MHz band range in which the smallest resource unit RU in the MRU is located. 4. The method according to claim 1 or 2, in which The frequency band range indicator is used to indicate the range of 160 MHz frequency bands in which the smallest resource unit RU in the MRU is located. 5. The method according to claim 4, wherein the MRU indicated by the resource block indicator comprises two resource blocks (two 996-tone RUs), wherein the size of each 996-tone RU is equal to 996 subcarriers, and one resource block (484-tone RU), whose size is equal to 484 subcarriers, and the frequency band range indicated by the frequency band range indicator is the frequency band range in which the 484-tone RU is located. 6. The method according to item 4 or 5, in which if the MRU indicated by the resource block indicator is a (2*996+484)-tone RU, when the 80 MHz frequency band range indicated by the frequency band range indicator is the first 80 MHz frequency band or the second 80 MHz frequency band in the 320 MHz frequency band range, this indicates that the 240 MHz frequency band range in which the (2*996+484)-tone RU corresponds to the first 80 MHz frequency band is the third 80 MHz frequency band in the 320 MHz frequency band range; or, when the 80 MHz band range indicated by the band range indicator is the third 80 MHz band or the fourth 80 MHz band in the 320 MHz band range, this indicates that the 240 MHz band range in which the (2*996+484)-tone RU is located is the second 80 MHz band - the fourth 80 MHz band in the 320 MHz band range. 7. The method according to any one of claims 1-6, in which RU/MRU indices of the same size in ascending order correspond to the initial RU/MRU frequencies in ascending order. 8. The method according to any one of claims 1-6, in which RU/MRU indices of the same size in ascending order correspond to the initial frequencies in ascending order of punctured RUs in the passband in which the RU/MRU is located. 9. The method according to any one of claims 1 to 8, wherein the resource block allocation subfield contains 9 bits, the frequency band range indicator contains 2 bits, and the resource block indicator contains 7 bits. 10. The method according to any one of claims 1 to 9, wherein the resource block indicator comprises one index, wherein the index indicates the size of the MRU or the index indicates the size of the MRU and the relative location of the MRU. 11. The method according to any one of claims 1 to 10, wherein the resource block pointer comprises an index, and the index is one of several indices in the following: index "68", which indicates an MRU containing two 484-tone RUs that are allocated to one station; index "69", which indicates an MRU containing four 996-tone RUs that are allocated to one station; indexes "70-81", each of which indicates an MRU containing one 52-tone RU and one 26-tone RU, which are allocated to one station; indexes "82-89", each of which indicates an MRU containing one 106-tone RU and one 26-tone RU, which are allocated to one station; indexes "90-93", each of which indicates an MRU containing one 484-tone RU and one 242-tone RU, which are allocated to one station; indexes "94-95", each of which indicates an MRU containing one 996-tone RU and one 484-tone RU, which are allocated to one station; indexes "96-99", each of which indicates an MRU containing one 996-tone RU, one 484-tone RU and one 242-tone RU, which are allocated to one station; indexes "96-99", each of which indicates an MRU containing one 996-tone RU, one 484-tone RU and one 242-tone RU, which are allocated to one station; indexes "100-103", each of which indicates an MRU containing two 996-tone RUs and one 484-tone RU, which are allocated to one station; index "104", which indicates an MRU containing three 996-tone RUs that are allocated to one station; indexes "105-106", each of which indicates an MRU containing three 996-tone RUs and one 484-tone RU, which are allocated to one station; indexes "107-127", each of which is reserved. 12. The method according to any one of claims 1 to 11, wherein the resource block pointer comprises an index, the MRU indicated by the resource block pointer corresponds to one or more indices, and the correspondence between the MRU and the number of indices is one or more of the following: An MRU containing two 996-tone RUs corresponds to one index; An MRU containing four 996-tone RUs corresponds to one index; An MRU containing one 52-tone RU and one 26-tone RU corresponds to 12 indices; An MRU containing one 106-tone RU and one 26-tone RU corresponds to eight indices; An MRU containing one 484-tone RU and one 242-tone RU corresponds to four indices; An MRU containing one 996-tone RU and one 484-tone RU corresponds to two indices; An MRU containing two 996-tone RUs and one 484-tone RU corresponds to four indices; An MRU containing three 996-tone RUs and one 484-tone RU corresponds to two indices; An MRU containing three 996-tone RUs corresponds to one index; An MRU containing one 996-tone RU, one 484-tone RU and one 242-tone RU corresponds to four indices. 13. The method according to any one of claims 1 to 12, wherein the frequency band range indicator and the resource block indicator are used to indicate the size and location of the MRU. 14. A communication device implementing the function of an access point, comprising: a processing unit configured to determine a trigger frame, where the trigger frame contains a resource block allocation subfield used to indicate the allocation of a resource to a station (STA), the resource block allocation subfield contains a frequency band range indicator and a resource block indicator, the resource block indicator is used to indicate the MRU allocated to the corresponding station, and the frequency band range indicator is used to indicate the frequency band range in which the smallest RU in the MRU is located; and a communication unit configured to send a trigger frame, wherein the MRU indicated by the resource block indicator comprises one resource block (26-tone RU) whose size is 26 subcarriers and one resource block (52-tone RU) whose size is 52 subcarriers, and the frequency band range indicated by the frequency band range indicator is the frequency band range in which the 26-tone RU is located; or The MRU indicated by the resource block indicator contains one RU (106-tone RU) whose size is 106 subcarriers and one 26-tone RU, and the frequency band range indicated by the frequency band range indicator is the frequency band range in which the 26-tone RU is located; or The MRU indicated by the resource block indicator contains one resource block (484-tone RU) whose size is 484 subcarriers and one resource block (242-tone RU) whose size is 242 subcarriers, and the frequency band range indicated by the frequency band range indicator is the frequency band range in which the 242-tone RU is located; or The MRU indicated by the resource block indicator contains one resource block (996-tone RU) whose size is 996 subcarriers and one 484-tone RU, and the frequency band range indicated by the frequency band range indicator is the frequency band range in which the 484-tone RU is located; or The MRU indicated by the resource block designator contains two 996-tone RUs and one 484-tone RU, and the frequency band range indicated by the frequency band range designator is the frequency band range in which the 484-tone RU is located; or The MRU indicated by the resource block designator contains two 996-tone RUs, and the frequency band range indicated by the frequency band range designator is the frequency band range in which one of the 996-tone RUs is located; or The MRU indicated by the resource block designator contains three 996-tone RUs and one 484-tone RU, and the frequency band range indicated by the frequency band range designator is the frequency band range in which the 484-tone RU is located; or The MRU indicated by the resource block indicator includes one 996-tone RU, one 484-tone RU, and one 242-tone RU, and the frequency band range indicated by the frequency band range indicator is the frequency band range in which the 242-tone RU is located. 15. A communication device implementing the station function (STA), comprising: a communication unit configured to receive a trigger frame from an access point, where the trigger frame contains a resource block allocation subfield used to indicate the resource allocation of the station, the resource block allocation subfield contains a frequency band range indicator and a resource block indicator, the resource block indicator is used to indicate the MRU allocated to the corresponding station, and the frequency band range indicator is used to indicate the frequency band range in which the smallest RU in the MRU is located; and a processing unit configured to determine the allocated MRU based on the frequency band range indicator and the resource block indicator, wherein the MRU indicated by the resource block indicator comprises one resource block (26-tone RU) whose size is 26 subcarriers and one resource block (52-tone RU) whose size is 52 subcarriers, and the frequency band range indicated by the frequency band range indicator is the frequency band range in which the 26-tone RU is located; or The MRU indicated by the resource block indicator contains one RU (106-tone RU) whose size is 106 subcarriers and one 26-tone RU, and the frequency band range indicated by the frequency band range indicator is the frequency band range in which the 26-tone RU is located; or The MRU indicated by the resource block indicator contains one resource block (484-tone RU) whose size is 484 subcarriers and one resource block (242-tone RU) whose size is 242 subcarriers, and the frequency band range indicated by the frequency band range indicator is the frequency band range in which the 242-tone RU is located; or The MRU indicated by the resource block indicator contains one resource block (996-tone RU) whose size is 996 subcarriers and one 484-tone RU, and the frequency band range indicated by the frequency band range indicator is the frequency band range in which the 484-tone RU is located; or The MRU indicated by the resource block designator contains two 996-tone RUs and one 484-tone RU, and the frequency band range indicated by the frequency band range designator is the frequency band range in which the 484-tone RU is located; or The MRU indicated by the resource block designator contains two 996-tone RUs, and the frequency band range indicated by the frequency band range designator is the frequency band range in which one of the 996-tone RUs is located; or The MRU indicated by the resource block designator contains three 996-tone RUs and one 484-tone RU, and the frequency band range indicated by the frequency band range designator is the frequency band range in which the 484-tone RU is located; or The MRU indicated by the resource block indicator includes one 996-tone RU, one 484-tone RU, and one 242-tone RU, and the frequency band range indicated by the frequency band range indicator is the frequency band range in which the 242-tone RU is located. 16. A communication device according to claim 14 or 15, in which The Bandwidth Range Indicator is used to indicate the 80 MHz band range in which the smallest resource unit RU in the MRU is located. 17. A communication device according to claim 14 or 15, in which The frequency band range indicator is used to indicate the range of 160 MHz frequency bands in which the smallest resource unit RU in the MRU is located. 18. The communication device according to claim 17, wherein the MRU indicated by the resource block indicator comprises two resource blocks (two 996-tone RUs), wherein the size of each 996-tone RU is equal to 996 subcarriers, and one resource block (484-tone RU), whose size is equal to 484 subcarriers, and the frequency band range indicated by the frequency band range indicator is the frequency band range in which the 484-tone RU is located. 19. A communication device according to claim 17 or 18, in which if the MRU indicated by the resource block indicator is a (2*996+484)-tone RU, when the 80 MHz frequency band range indicated by the frequency band range indicator is the first 80 MHz frequency band or the second 80 MHz frequency band in the 320 MHz frequency band range, this indicates that the 240 MHz frequency band range in which the (2*996+484)-tone RU is located is the first 80 MHz frequency band - the third 80 MHz frequency band in the 320 MHz frequency band range; or, when the 80 MHz band indicated by the band range indicator is the third 80 MHz band or the fourth 80 MHz band in the 320 MHz band range, this indicates that the 240 MHz band range in which the (2*996+484)-tone RU is located is the second 80 MHz band - the fourth 80 MHz band in the 320 MHz band range. 20. A communication device according to any one of paragraphs 14-19, in which RU/MRU indices of the same size in ascending order correspond to the initial RU/MRU frequencies in ascending order. 21. A communication device according to any one of paragraphs 14-19, in which RU/MRU indices of the same size in ascending order correspond to the initial frequencies in ascending order of punctured RUs in the passband in which the RU/MRU is located. 22. A communication device according to any one of claims 14-21, wherein the resource block allocation subfield comprises 9 bits, the frequency band range indicator comprises 2 bits, and the resource block indicator comprises 7 bits. 23. The communication device according to any one of claims 14 to 22, wherein the resource block indicator comprises one index, wherein the index indicates the size of the MRU or the index indicates the size of the MRU and the relative location of the MRU. 24. A communication device according to any one of claims 14 to 23, wherein the resource block indicator comprises an index, and the index is one of several indices in the following: index "68", which indicates an MRU containing two 484-tone RUs that are allocated to one station; index "69", which indicates an MRU containing four 996-tone RUs that are allocated to one station; indexes "70-81", each of which indicates an MRU containing one 52-tone RU and one 26-tone RU, which are allocated to one station; indexes "82-89", each of which indicates an MRU containing one 106-tone RU and one 26-tone RU, which are allocated to one station; indexes "90-93", each of which indicates an MRU containing one 484-tone RU and one 242-tone RU, which are allocated to one station; indexes "94-95", each of which indicates an MRU containing one 996-tone RU and one 484-tone RU, which are allocated to one station; indexes "96-99", each of which indicates an MRU containing one 996-tone RU, one 484-tone RU and one 242-tone RU, which are allocated to one station; indexes "96-99", each of which indicates an MRU containing one 996-tone RU, one 484-tone RU and one 242-tone RU, which are allocated to one station; indexes "100-103", each of which indicates an MRU containing two 996-tone RUs and one 484-tone RU, which are allocated to one station; index "104", which indicates an MRU containing three 996-tone RUs that are allocated to one station; indexes "105-106", each of which indicates an MRU containing three 996-tone RUs and one 484-tone RU, which are allocated to one station; indexes "107-127", each of which is reserved. 25. The communication device according to any one of claims 14-24, wherein the resource block indicator comprises an index, the MRU indicated by the resource block indicator corresponds to one or more indices, and the correspondence between the MRU and the number of indices is one or more of the following: An MRU containing two 996-tone RUs corresponds to one index; An MRU containing four 996-tone RUs corresponds to one index; An MRU containing one 52-tone RU and one 26-tone RU corresponds to 12 indices; An MRU containing one 106-tone RU and one 26-tone RU corresponds to eight indices; An MRU containing one 484-tone RU and one 242-tone RU corresponds to four indices; An MRU containing one 996-tone RU and one 484-tone RU corresponds to two indices; An MRU containing two 996-tone RUs and one 484-tone RU corresponds to four indices; An MRU containing three 996-tone RUs and one 484-tone RU corresponds to two indices; An MRU containing three 996-tone RUs corresponds to one index; An MRU containing one 996-tone RU, one 484-tone RU and one 242-tone RU corresponds to four indices. 26. A communication device according to any one of claims 14 to 25, wherein the frequency band indicator and the resource block indicator are used to indicate the size and location of the MRU. 27. A machine-readable information carrier, in which the machine-readable information carrier is configured to store instructions, and when the instructions are executed by the processor, the method according to any one of paragraphs 1, 3-13 is implemented. 28. A machine-readable information carrier, in which the machine-readable information carrier is configured to store instructions, and when the instructions are executed by the processor, the method according to any of paragraphs 2-13 is implemented. 29. A wireless communication microcircuit comprising at least one processor and an interface, wherein the interface is configured to receive a computer program, and the processor is configured to call the computer program to perform the method according to any of paragraphs 1, 3-13. 30. A wireless communication microcircuit comprising at least one processor and an interface, wherein the interface is configured to receive a computer program, and the processor is configured to call the computer program to perform the method according to any of paragraphs 2-13. 31. A communication device comprising: a processor and a memory, wherein the memory is configured to store instructions or a computer program, and the processor is configured to execute the computer program or instructions stored in the memory, so that the communication device performs the method according to any one of claims 1, 3-13. 32. A communication device comprising: a processor and a memory, wherein the memory is configured to store instructions or a computer program, and the processor is configured to execute the computer program or instructions stored in the memory, so that the communication device performs the method according to any one of paragraphs 2-13.