CN111757536B - A method and apparatus for determining resources available for transmission - Google Patents

Abstract

The invention provides a method and a device for determining resources available for transmission, wherein the method comprises the following steps: determining that a PRACH opportunity is valid and/or invalid and/or determining resources available for transmission based on at least one of the first resource configuration and the second resource configuration. According to the embodiment of the invention, for the network equipment with the return link and the access link, when the resources available for transmission are determined, the resource configuration corresponding to the return link and the resource configuration corresponding to the access link are considered, and the direction and the position of the resources configured by the network equipment are not considered, so that the accuracy of resource management can be improved.

Description

A method and apparatus for determining resources available for transmission

technical field

The present invention relates to the field of communication technologies, and in particular, to a method and apparatus for determining resources available for transmission.

Background technique

With the development of communication technology, 3GPP (3rd Generation Partnership Project, 3rd Generation Partnership Project) introduced self-backhaul technology.

As shown in FIG. 1 , the communication device 2 with self-backhaul capability can not only provide services for the terminal 3 through the access link (Access Link), but also can backhaul data to the terminal 3 through the backhaul link (Backhaul Link). Communication device 1 of transmission capability.

The resource allocation method of self-backhaul technology can be divided into TDM (Time Division Multiplexing, time division multiplexing mode), FDM (Frequency Division Multiplexing, frequency division multiplexing mode) and SDM (SpaceDivision Multiplexing, time division multiplexing mode). The corresponding resource allocation methods are shown in Figure 2, Figure 3 and Figure 4.

The communication equipment with self-backhaul capability includes two parts, namely the MT (Mobile Terminal) part that works as a terminal and the DU (Distribution Unit, distributed unit) part that works as a base station. The work of the two is subject to half-duplex work. way restrictions.

In the prior art, the resources allocated for the DU part include multiple types of resources, such as the first type of resources and the second type of resources. However, when a communication device with self-backhaul capability in the prior art performs resource management, it only considers the direction and location of the resource and does not consider the resource type, so accurate and effective resource management cannot be performed.

SUMMARY OF THE INVENTION

The purpose of the embodiments of the present invention is to provide a method and an apparatus for determining resources available for transmission, so as to solve the problem of inaccurate resource management of existing communication devices with self-backhaul capability.

In order to solve the above technical problems, the embodiments of the present invention are implemented as follows:

In a first aspect, an embodiment of the present invention provides a method for determining resources available for transmission, including:

According to at least one of the first resource configuration and the second resource configuration, it is determined that the physical random access channel PRACH opportunity is valid and/or invalid, and/or the resources available for transmission are determined.

In a second aspect, an embodiment of the present invention provides an apparatus for determining resources available for transmission, including:

A determining module, configured to determine whether the PRACH opportunity is valid and/or invalid, and/or determine resources available for transmission according to at least one of the first resource configuration and the second resource configuration.

In a third aspect, an embodiment of the present invention provides a communication device, including a memory, a processor, and a computer program stored on the memory and executable on the processor, wherein the computer program is processed by the processor The steps of the above-described method for determining resources available for transmission are implemented when the processor executes.

In a fourth aspect, an embodiment of the present invention provides a computer-readable storage medium on which a computer program is stored, wherein when the computer program is executed by a processor, the steps of the above method for determining resources available for transmission are implemented.

In this embodiment of the present invention, for a network device having a backhaul link and an access link, the PRACH is determined according to some or all of the resource configuration corresponding to the backhaul link and the resource configuration corresponding to the access link. Opportunities are valid and/or invalid, and/or determine the resources available for transmission. Since the embodiment of the present invention considers the resource configuration corresponding to the backhaul link and the resource configuration corresponding to the access link when determining the resources available for transmission, instead of only considering the direction and position of the resources configured by itself, therefore It can improve the accuracy of resource management.

Description of drawings

FIG. 1 shows a schematic diagram of a communication process of a communication device with self-backhaul capability in the prior art;

Fig. 2 shows the transmission schematic diagram of TDM in the prior art;

Fig. 3 shows the transmission schematic diagram of FDM in the prior art;

Fig. 4 shows the transmission schematic diagram of SDM in the prior art;

FIG. 5 shows a flowchart of a method for determining resources available for transmission according to an embodiment of the present invention;

Fig. 6a shows a schematic diagram of configuration resources of criterion 1 in an embodiment of the present invention;

Fig. 6b shows a schematic diagram of configuration resources of criterion 2 in an embodiment of the present invention;

Fig. 6c shows a schematic diagram of configuration resources of criterion 3 in an embodiment of the present invention;

FIG. 6d shows a schematic diagram of configuration resources of criterion 4 in an embodiment of the present invention;

FIG. 6e shows a schematic diagram of configuration resources of criterion 5 in an embodiment of the present invention;

FIG. 6f shows a schematic diagram of configuration resources of criterion 6 in an embodiment of the present invention;

FIG. 6g shows a schematic diagram of configuration resources of criterion 7 in an embodiment of the present invention;

FIG. 6h shows a schematic diagram of configuration resources of criterion 9 in an embodiment of the present invention;

FIG. 6i shows a schematic diagram of configuration resources of criterion 10 in an embodiment of the present invention;

FIG. 6j shows a schematic diagram of configuration resources of criterion 11 in an embodiment of the present invention;

FIG. 6k shows a schematic diagram of configuration resources of criterion 12 in an embodiment of the present invention;

7 shows a schematic structural diagram of an apparatus for determining resources available for transmission according to an embodiment of the present invention;

FIG. 8 is a schematic structural diagram of a communication device according to an embodiment of the present invention.

Detailed ways

In order to make the technical problems, technical solutions and advantages to be solved by the present invention more clear, the following will be described in detail with reference to the accompanying drawings and specific embodiments.

The purpose of the embodiments of the present invention is to provide a method and apparatus for determining resources available for transmission, which are based on the resource configuration (Resource Configuration, Resource Configurations, or Resources Configurations) corresponding to the backhaul link and the resources corresponding to the access link. Part or all of the configuration to determine the PRACH (Physical Random Access Channel, physical random access channel) opportunity (also known as: PRACH transmission opportunity, Occasion) is valid and/or invalid, and/or determine the resources available for transmission . Because the method according to the embodiment of the present invention considers the resource configuration corresponding to the backhaul link and the resource configuration corresponding to the access link when determining the resources available for transmission, instead of only considering the direction and location of the resources configured by itself , so the accuracy of resource management can be improved.

In the prior art, the resources allocated for the DU part include multiple resource types, such as the first type of resources and the second type of resources, wherein:

The first type of resources can also be referred to as soft resources (Soft); for this part of resources, although it is allocated to the DU part, its use requires the DU part to determine whether the resource is available according to the usage of the MT part, that is to say Whether the resource is available shall be judged according to whether the resource is used by the MT part. In other words, for the first type of resources, the MT part has a higher usage priority, while the DU part has a relatively lower usage priority.

The second type of resources can also be called hard resources; for this part of the resources, it can be allocated to the DU part for independent use, or it can also be allocated to the DU part, and the DU part is larger than the MT part. A resource with a higher usage priority.

In other words, for the second type of resource, the DU part can use the resource regardless of the usage of the resource by the MT part; or the DU part can use the resource arbitrarily; or the DU part can use the resource arbitrarily , and regardless of whether the MT part uses the resource; that is, for the second type of resource, the DU part has a higher priority of use than the MT part.

It is understandable that the resources in this embodiment may be time domain resources, frequency domain resources, or time-frequency domain resources and the like.

A method for determining resources available for transmission according to a specific embodiment of the present invention, as shown in FIG. 5 , the method includes:

Step 501: According to at least one of the first resource configuration and the second resource configuration, determine whether the PRACH opportunity is valid and/or invalid, and/or determine the resources available for transmission.

The PRACH opportunities in this step may be PRACH reception opportunities and/or PRACH transmission opportunities. The above determination that the PRACH opportunity is valid and/or invalid may mean that the PRACH reception opportunity and the PRACH transmission opportunity are determined to be valid, or that the PRACH reception opportunity and the PRACH transmission opportunity are determined to be invalid, or that the PRACH reception opportunity is determined to be valid, and the PRACH transmission opportunity is determined to be invalid, It may also indicate that the PRACH reception opportunity is determined to be invalid, and the PRACH transmission opportunity is determined to be valid.

In the specific embodiment of the present invention, for a network device having a backhaul link and an access link, the determination is based on part or all of the resource configuration corresponding to the backhaul link and the resource configuration corresponding to the access link. PRACH opportunities are valid and/or invalid, and/or determine the resources available for transmission. Because the method according to the embodiment of the present invention considers the resource configuration corresponding to the backhaul link and the resource configuration corresponding to the access link when determining the resources available for transmission, instead of only considering the direction and location of the resources configured by itself , so the accuracy of resource management can be improved.

In a specific embodiment of the present invention, the first resource configuration may be a resource configuration corresponding to a backhaul link of an IAB (Integrated Access and Backhaul, integrated backhaul) device, and the second resource configuration may be an access link of the IAB device. Resource configuration corresponding to the incoming link.

In a case where the first resource configuration is a resource configuration corresponding to the backhaul link of the IAB device, and the second resource configuration is a resource configuration corresponding to the access link of the IAB device, correspondingly, the PRACH opportunity is a PRACH opportunity of the MT part, and/or the PRACH opportunity is a PRACH opportunity of the DU part. The DU part can be a base station or a base station function of an IAB.

For the MT part, the PRACH opportunity is a PRACH transmission opportunity, and for the DU part, the PRACH opportunity is a PRACH reception opportunity.

It should be understood that, in the specific embodiment of the present invention, the above-mentioned method for determining the resources available for transmission can be performed by the network device having the backhaul link and the access link itself, or by other external devices. Execute, such as network management equipment.

As mentioned before, the resource allocation methods of the self-backhaul technology can be divided into multiplexing methods of TDM, FDM and SDM. The following describes how to determine whether the PRACH opportunity is valid and/or invalid, and/or determine the resources available for transmission according to at least one of the first resource configuration and the second resource configuration in different working modes.

<MT part and DU part work in time division mode>

When the MT part and the DU part work in the time division mode, the MT part and the DU part each occupy resources in independent time periods. At this time, it can be determined that the PRACH opportunity is valid and/or invalid according to at least one of the following criteria, and/or Determine the resources available for transmission.

As shown in Table 1 below, in the existing NR standard, a period and a transmission opportunity of an uplink RACH (Random Access Channel, random access channel) have been defined. The terminal can determine the specific PRACH cycle and transmission opportunity (RACH Occasion) according to the instruction of the base station.

Table 1

In Table 1, n _SFN mod x=y.

Similarly, for a communication device with self-backhaul capability, it can also determine the respective PRACH transmission opportunities (RACH Occasion) of the MT part and the DU part according to the PRACH configuration. Since the MT part and the DU part work in the half-duplex mode, when the DU part receives the uplink PRACH of the general terminal at the corresponding moment, the MT part cannot send the uplink RACH. Therefore, in the prior art, a periodic scaling factor (scaling) and an offset (offset) are introduced, so that the uplink RACH transmission opportunity of the MT part and the uplink PRACH reception opportunity of the DU part can be orthogonally separated without affecting each other.

After determining the resource corresponding to the PRACH opportunity according to the above-mentioned prior art, it is necessary to determine whether the PRACH opportunity is valid and/or invalid according to the resource configuration corresponding to the backhaul link and the resource configuration corresponding to the access link, as described below.

Criterion 1

As shown in Figure 6a, when the first resource is located outside the third resource, the PRACH opportunity is invalid; the third resource is: the resource allocated to the MT part; the first resource is: the PRACH opportunity of the MT part (RO) Corresponding resources (may also be referred to as: transmission resources).

In this case, the resource corresponding to the determined PRACH transmission opportunity of the MT part is not allocated to the MT part, so the PRACH opportunity of the MT part is invalid, and the MT part cannot use this part of the resources to transmit the PRACH.

Criterion 2

As shown in Fig. 6b, when the first resource is located within the third resource (which can be understood as overlapping the first resource and the third resource, or the first resource is a subset of the third resource), the PRACH opportunity is valid (valid); the third resource is: the resource allocated to the MT part; the first resource is: the resource corresponding to the PRACH opportunity of the MT part.

In this case, the resource corresponding to the determined PRACH transmission opportunity of the MT part is within the resources allocated to the MT part, so the PRACH opportunity of the MT part is valid, and the MT part can use this part of the resources to send PRACH.

Criterion 3

As shown in Fig. 6c, when the first resource is located within the fourth resource (which can be understood as overlapping the first resource and the fourth resource, or the first resource is a subset of the fourth resource), the PRACH opportunity is Effective; the fourth resource is: the first type of resource allocated to the DU part; the first resource is: the resource corresponding to the PRACH opportunity of the MT part.

In this case, the resource corresponding to the determined PRACH transmission opportunity of the MT part is located within the first type of resources configured for the DU part. For the first type of resources, the MT part has a higher priority, so the PRACH opportunity of the MT part is valid, and the MT part can use this part of the resources to send PRACH.

Guideline 4

As shown in Fig. 6d, when the first resource is located within the fifth resource (which can be understood as overlapping the first resource and the fifth resource, or the first resource is a subset of the fifth resource), the PRACH opportunity is Effective; the fifth resource is: the resource configured for the MT part, and the fifth resource is the second type of resource configured for the DU part; the first resource is: the resource corresponding to the PRACH opportunity of the MT part;

In this case, the resource corresponding to the determined PRACH transmission opportunity of the MT part is located within the second type of resources configured for the DU part. Although for the second type of resources, the DU part has higher priority. However, if a communication device with self-backhaul capability is not connected to a communication device with optical fiber transmission capability, it cannot provide complete services by itself. Therefore, in order to ensure that communication equipment with self-backhaul capability can access the The communication device also determines that the PRACH opportunity of the MT part is valid at this time, and the MT part can use this part of resources to send PRACH.

The validity of the PRACH sending opportunity of the MT part has been judged above, and the criterion for judging the validity of the PRACH receiving opportunity of the DU part will be further described in detail below.

Guideline 5

As shown in Fig. 6e, when the second resource is located within the sixth resource (which can be understood as overlapping the first resource and the sixth resource, or the first resource is a subset of the sixth resource), the PRACH opportunity is Effective; the sixth resource is: the second type of resource configured for the DU part; the second resource is: the resource corresponding to the PRACH opportunity of the DU part.

In this case, the resource corresponding to the determined PRACH reception opportunity of the DU part is located within the resources of the second type configured for the DU part. For the second type of resources, the DU part has a higher priority. Therefore, the PRACH opportunity of the DU part is also determined to be valid at this time, and the DU part can use this part of the resources to receive PRACH.

Guideline 6

As shown in Fig. 6f, when the second resource is located within the seventh resource (which can be understood as overlapping the first resource and the seventh resource, or the first resource is a subset of the seventh resource), the PRACH opportunity is Invalid; the seventh resource is: the first type of resource allocated to the DU part; the second resource is: the resource corresponding to the PRACH opportunity of the DU part.

In this case, the resource corresponding to the determined PRACH reception opportunity of the DU part is located within the first type of resources configured for the DU part. For the first type of resources, the MT part has a higher priority. Therefore, regardless of whether the MT part of this part of the resource is used or not, it is determined that the PRACH opportunity of the DU part is invalid, and the DU part cannot use this part of the resource for PRACH to ensure that the MT part has the priority to use this part of the resource.

Guideline 7

As shown in Fig. 6g, when the second resource is located within the eighth resource (which can be understood as overlapping the first resource and the eighth resource, or the first resource is a subset of the eighth resource), the PRACH opportunity is Invalid; the eighth resource is: the unavailable resource of the DU part; the second resource is: the resource corresponding to the PRACH opportunity of the DU part.

In this case, the resource corresponding to the determined PRACH reception opportunity of the DU part is an unavailable resource allocated to the DU part, so it can be determined that the PRACH opportunity of the DU part is invalid, and the DU part cannot use this part of resources to receive PRACH.

Guideline 8

In the specific embodiment of the present invention, as mentioned above, when the transmission resource corresponding to the PRACH opportunity of the MT part is located in the first type resource or the second type resource configured for the DU part, in order to ensure that the transmission resource with self-backhaul capability The communication device can access the communication device with optical fiber transmission capability, and the PRACH opportunities of the corresponding MT part are all valid. Correspondingly, this part of resources is unavailable to the DU part, that is:

When the first resource is located within the ninth resource, the ninth resource is unavailable to the DU part; the ninth resource is: the first type of resource or the second type of resource configured for the DU part; the The first resource is: the resource corresponding to the PRACH opportunity of the MT part.

<MT part and DU part work in frequency division mode or space division mode>

When the MT part and the DU part work in the frequency division mode or the space division mode, the MT part and the DU part can share the time domain resources at the same time. At this time, the PRACH opportunity can be determined to be valid and/or invalid according to at least one of the following criteria , and/or determine the resources available for transmission.

Guideline 9

As shown in Fig. 6h, when the first resource is located within the tenth resource (which can be understood as overlapping the first resource and the tenth resource, or the first resource is a subset of the tenth resource), the PRACH opportunity is Effective; the tenth resource is: the first type of resource allocated to the DU part; the first resource is: the resource corresponding to the PRACH opportunity of the MT part.

In this case, the resource corresponding to the determined PRACH transmission opportunity of the MT part is located within the first type of resources configured for the DU part. For the first type of resources, the MT part has a higher priority, so the PRACH opportunity of the MT part is valid, and the MT part can use this part of the resources to send PRACH.

Guideline 10

As shown in Fig. 6i, when the second resource is located within the eleventh resource (which can be understood as overlapping the first resource and the eleventh resource, or the first resource is a subset of the eleventh resource), The PRACH opportunity is valid; the eleventh resource is: allocated to the MT part, and the resource direction is a downlink or flexible resource; or, the eleventh resource is: allocated to the MT part, but the MT part is not used The second resource is: the resource corresponding to the PRACH opportunity of the DU part, and the second resource is the first type of resource.

In this case, although the soft resource corresponding to the determined PRACH receiving opportunity of the DU part has been allocated to the MT part, the receiving operation can be performed because the resource direction of the resources configured in the MT part is downlink or flexible resources. For the PRACH opportunity of the DU part, it is also a receiving opportunity. Because of the network equipment with the backhaul link and the access link, in the frequency division or space division mode, it can perform the receiving action or the sending action at the same time. Therefore, the PRACH opportunity of the DU part is valid, and the DU part can use this part of resources to receive PRACH.

In another case, although the soft resource corresponding to the determined PRACH receiving opportunity of the DU part has been allocated to the MT part, but the MT part is not used, therefore, the PRACH opportunity of the DU part is valid, and this part of resources is used for PRACH send.

Guideline 11

As shown in FIG. 6j , when the second resource is located within the twelfth resource (which can be understood as overlapping the first resource and the twelfth resource, or the first resource is a subset of the twelfth resource), The PRACH opportunity is valid; the twelfth resource is: a resource that is not allocated to the MT part but is allocated to the DU part; the second resource is: the resource corresponding to the PRACH opportunity of the DU part.

In this case, the resource corresponding to the determined PRACH reception opportunity of the DU part is not allocated to the MT part, but has been allocated to the DU part (which can be soft resources or hard resources). Therefore, the PRACH opportunity of the DU part Effective, the DU part can use this part of resources to receive PRACH.

Guideline 12

As shown in FIG. 6k, when the second resource is located within the thirteenth resource (which can be understood as overlapping the first resource and the thirteenth resource, or the first resource is a subset of the thirteenth resource), The PRACH opportunity is invalid (or in other words, the PRACH opportunity is invalid); the thirteenth resource is: the resource allocated to the MT part, and the resource direction is the uplink; the second resource is: the resource corresponding to the PRACH opportunity of the DU part , and the second resource is a resource of the first type.

In this case, the soft resource corresponding to the determined PRACH receiving opportunity of the DU part has been allocated to the MT part, and since the resource direction of the resources of the MT part is configured to be uplink, the sending operation can be performed. However, the PRACH opportunity for the DU part is a receiving opportunity, because the network device with the backhaul link and the access link cannot perform the receiving action and the sending action at the same time in the frequency division or space division mode. Therefore, the PRACH opportunity of the DU part is invalid, and the DU part cannot use this part of resources to receive PRACH.

Guideline 13

In the case where the first resource is located within the fourteenth resource (which can be understood as overlapping the first resource and the fourteenth resource, or the first resource is a subset of the fourteenth resource), the fourteenth resource Available to the DU part; the fourteenth resource is a first type of resource allocated to the DU part, and the resource direction is downlink or flexible; the first resource is: the resource corresponding to the PRACH opportunity of the MT part.

In this case, the resource corresponding to the determined PRACH transmission opportunity of the MT part is within the first type of resources configured for the DU part, and the resource direction is downlink or flexible, so the MT part and the DU part use this part of the resources Both perform the send operation. However, due to the network equipment having the backhaul link and the access link, in the frequency division or space division mode, it can perform the sending action at the same time. Therefore, the fourteenth resource is available for the DU portion.

Guideline 14

In the case where the first resource is located within the fifteenth resource (which can be understood as overlapping the first resource and the fifteenth resource, or the first resource is a subset of the fifteenth resource), the fifteenth resource Not available for the DU part; the fifteenth resource is: the first type of resource allocated to the DU part, and the resource direction is uplink; the first resource is: the resource corresponding to the PRACH opportunity of the MT part.

In this case, contrary to Criterion 13, although the determined resource corresponding to the PRACH transmission opportunity of the MT part is located within the first type of resources allocated to the DU part, the resource direction is uplink, and because of the backhaul chain In the frequency division or space division mode, the network equipment of the channel and the access link cannot perform transmission and reception operations at the same time. Therefore, the fifteenth resource is not available for the DU part.

Guideline 15

In the case where the second resource is located within the sixteenth resource (which can be understood as the overlap between the first resource and the sixteenth resource, or the first resource is a subset of the sixteenth resource), the second resource pair The DU part is available; the sixteenth resource is: resources allocated to the MT part, and the resource direction is downlink or flexible; or, the sixteenth resource is: resources that are not allocated to the MT part; the second The resource is: the resource corresponding to the PRACH opportunity of the DU part, and the resource configured for the DU to use.

In this case, although the soft resource corresponding to the determined PRACH receiving opportunity of the DU part has been allocated to the MT part, the receiving operation can be performed because the resource direction of the resources configured in the MT part is downlink or flexible resources. For the PRACH opportunity of the DU part, it is also a receiving opportunity. Because of the network equipment with the backhaul link and the access link, in the frequency division or space division mode, it can perform the receiving action or the sending action at the same time. Therefore, the DU part can utilize the second resource.

In another case, the soft resource corresponding to the determined PRACH reception opportunity of the DU part is not allocated to the MT part, therefore, the DU part can use the second resource.

Guideline 16

When the second resource is located within the seventeenth resource (which can be understood as overlapping the first resource and the seventeenth resource, or the first resource is a subset of the seventeenth resource), the second resource pair The DU part is unavailable; the seventeenth resource is: the resource allocated to the MT part, and the resource direction is the uplink; the second resource is: the resource corresponding to the PRACH opportunity of the DU part, and the second resource is the first resource. a type of resource.

In this case, also due to the network equipment having the backhaul link and the access link, in the frequency division or space division mode, it is not possible to perform the sending and receiving actions at the same time. Therefore, the second resource is not available for the DU part.

It should be noted that the validity and/or invalidity of the PRACH opportunity determined by the method of the embodiment of the present invention is only an intermediate result. , such as according to the uplink and downlink slot configuration (TDD-UL-DL-ConfigurationCommon), uplink symbol location information (whether it is in the UL symbol), the location of the SS/PBCH block, the processing delay of the downlink symbol, the PRACH opportunity and the downlink symbol The positional relationship, etc., can be further judged.

For example, a judgment criterion is: the PRACH opportunity is finally determined to be valid only when the following two conditions are met:

1. The PRACH opportunity is located within the uplink symbol;

2. Does not fall before the SS/PBCH block of the PRACH slot, and the distance between the starting point of the PRACH opportunity and the last downlink symbol and the last symbol of the SS/PBCH block transmission symbol is greater than or equal to N (defined by the existing protocol 38.213 Table 8.1-2 in the definition) symbols.

Please refer to FIG. 7. FIG. 7 is a schematic structural diagram of an apparatus for determining resources available for transmission according to an embodiment of the present invention. As shown in FIG. 7, the apparatus includes:

The determining module 71 is configured to determine, according to at least one of the first resource configuration and the second resource configuration, whether the PRACH opportunity is valid and/or invalid, and/or determine the resources available for transmission.

In the specific embodiment of the present invention, for a network device having a backhaul link and an access link, the determination is based on part or all of the resource configuration corresponding to the backhaul link and the resource configuration corresponding to the access link. PRACH opportunities are valid and/or invalid, and/or determine the resources available for transmission. When determining the resources available for transmission, the apparatus according to the embodiment of the present invention considers the resource configuration corresponding to the backhaul link and the resource configuration corresponding to the access link, instead of only considering the direction and location of the resources configured by itself , so the accuracy of resource management can be improved.

Optionally, the first resource configuration is a resource configuration corresponding to a backhaul link of the IAB device, and the second resource configuration is a resource configuration corresponding to an access link of the IAB device.

Optionally, the PRACH opportunity is the PRACH opportunity of the MT part;

And/or, the PRACH opportunity is a PRACH opportunity of the DU part.

Optionally, the determining module 71 is specifically configured to, according to at least one of the following criteria, determine whether the PRACH opportunity is valid and/or invalid, and/or determine the resources available for transmission:

When the first resource is located outside the third resource, the PRACH opportunity is invalid; the third resource is: the resource allocated to the MT part; the first resource is: the resource corresponding to the PRACH opportunity of the MT part;

When the first resource is located within the third resource, the PRACH opportunity is valid; the third resource is: the resource allocated to the MT part; the first resource is: the resource corresponding to the PRACH opportunity of the MT part;

When the first resource is located within the fourth resource, the PRACH opportunity is valid; the fourth resource is: the first type of resource allocated to the DU part; the first resource is: the PRACH opportunity corresponding to the MT part resource;

When the first resource is located within the fifth resource, the PRACH opportunity is valid; the fifth resource is: the resource configured for the MT part, and the fifth resource is the second type of resource configured for the DU part; The first resource is: the resource corresponding to the PRACH opportunity of the MT part;

When the second resource is located within the sixth resource, the PRACH opportunity is valid; the sixth resource is: the second type of resource allocated to the DU part; the second resource is: corresponding to the PRACH opportunity of the DU part resource;

When the second resource is located within the seventh resource, the PRACH opportunity is invalid; the seventh resource is: the first type of resource allocated to the DU part; the second resource is: the PRACH opportunity corresponding to the DU part resource;

When the second resource is located within the eighth resource, the PRACH opportunity is invalid; the eighth resource is: the unavailable resource of the DU part; the second resource is: the resource corresponding to the PRACH opportunity of the DU part.

When the first resource is located within the ninth resource, the ninth resource is unavailable to the DU part; the ninth resource is: the first type of resource configured for the DU part, or the first type of resource configured for the DU part. Two types of resources; the first resource is: the resource corresponding to the PRACH opportunity of the MT part.

Optionally, the above criterion is used in the case where the MT part and the DU part of the IAB device work in the time division mode.

Optionally, the determining module 71 is specifically configured to, according to at least one of the following criteria, determine whether the PRACH opportunity is valid and/or invalid, and/or determine the resources available for transmission:

When the first resource is located within the tenth resource, the PRACH opportunity is valid; the tenth resource is: the first type of resource allocated to the DU part; the first resource is: the PRACH opportunity corresponding to the MT part resource;

When the second resource is located within the eleventh resource, the PRACH opportunity is valid; the eleventh resource is: a resource allocated to the MT part, and the resource direction is downlink or flexible; or, the eleventh resource are: resources allocated to the MT part but not used by the MT part; the second resources are: resources corresponding to the PRACH opportunities in the DU part, and the second resources are resources of the first type;

When the second resource is located within the twelfth resource, the PRACH opportunity is valid; the twelfth resource is: the resource that is not allocated to the MT part but is allocated to the DU part; the second resource is: the DU part The resources corresponding to the PRACH opportunities;

When the second resource is located within the thirteenth resource, the PRACH opportunity is invalid; the thirteenth resource is: the resource allocated to the MT part, and the resource direction is the uplink; the second resource is: the DU part of the resource resources corresponding to PRACH opportunities, and the second resources are resources of the first type;

When the first resource is located within the fourteenth resource, the fourteenth resource is available to the DU part; the fourteenth resource is: configured to the DU part, and the resource direction is downlink or flexible first type resource; the first resource is: the resource corresponding to the PRACH opportunity of the MT part;

In the case where the first resource is located within the fifteenth resource, the fifteenth resource is unavailable to the DU part; the fifteenth resource is the first type of resource configured for the DU part and the resource direction is uplink ; The first resource is: the resource corresponding to the PRACH opportunity of the MT part;

In the case where the second resource is located within the sixteenth resource, the second resource is available to the DU part; the sixteenth resource is: a resource allocated to the MT part, and the resource direction is downlink or flexible; or, all The sixteenth resource is: the resource that is not allocated to the MT part; the second resource is: the resource corresponding to the PRACH opportunity of the DU part, and the resource that is configured to be used by the DU part;

When the second resource is located within the seventeenth resource, the second resource is unavailable to the DU part; the seventeenth resource is: a resource allocated to the MT part, and the resource direction is uplink; the second resource The resources are: resources corresponding to the PRACH opportunities in the DU part, and the second resources are resources of the first type.

Optionally, the above criterion is used in the case where the MT part and the DU part of the IAB device work in frequency division or space division mode.

Optionally, the first type of resources are: resources allocated to the DU part, but the availability needs to be judged according to the resource usage of the MT part, or allocated to the DU part, but the MT part has higher usage than the DU part. priority resources;

The second type of resources are: resources allocated to the DU part and can be used independently, or resources allocated to the DU part, and the DU part has a higher use priority than the MT part.

In addition, an embodiment of the present invention also provides a communication device, including a memory, a processor, and a computer program stored on the memory and executable on the processor, wherein the computer program is executed by the processor At the same time, each process of the foregoing method for determining resources available for transmission can be implemented, and the same technical effect can be achieved. To avoid repetition, details are not described here.

Specifically, as shown in FIG. 8 , an embodiment of the present invention further provides a communication device including a bus 81 , a transceiver 82 , an antenna 83 , a bus interface 84 , a processor 85 and a memory 86 .

In this embodiment of the present invention, the communication device further includes: a computer program stored on the memory 86 and executable on the processor 85 . When the computer program is executed by the processor 85, the following steps can be implemented:

According to at least one of the first resource configuration and the second resource configuration, it is determined that the PRACH opportunity is valid and/or invalid, and/or the resources available for transmission are determined.

It is understandable that the communication device according to the embodiment of the present invention can implement each process of the method embodiment for determining resources available for transmission shown in FIG. 5 above, and can achieve the same technical effect.

In FIG. 8, the bus architecture (represented by bus 81), which may include any number of interconnected buses and bridges, will include one or more processors, represented by processors 85, and memory, represented by memory 86. The various circuits are linked together. The bus 81 may also link together various other circuits such as peripherals, voltage regulators, and power management circuits, etc., which are well known in the art and therefore will not be described further herein. Bus interface 84 provides an interface between bus 81 and transceiver 82 . Transceiver 82 may be a single element or multiple elements, such as multiple receivers and transmitters, providing a means for communicating with various other devices over a transmission medium. The data processed by the processor 85 is transmitted on the wireless medium through the antenna 83 , and further, the antenna 83 also receives the data and transmits the data to the processor 85 .

Processor 85 is responsible for managing bus 81 and general processing, and may also provide various functions including timing, peripheral interface, voltage regulation, power management, and other control functions. Instead, memory 86 may be used to store data used by processor 85 in performing operations.

Optionally, the processor 85 may be a CPU, ASIC, FPGA or CPLD.

Embodiments of the present invention further provide a computer-readable storage medium on which a computer program is stored. When the computer program is executed by a processor, each process of the foregoing method for determining a resource available for transmission is implemented, and can achieve the same In order to avoid repetition, the technical effect will not be repeated here.

Computer-readable media includes both permanent and non-permanent, removable and non-removable media, and can be implemented by any method or technology for storage of information. Information may be computer readable instructions, data structures, modules of programs, or other data. Examples of computer storage media include, but are not limited to, phase-change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM), read only memory (ROM), Electrically Erasable Programmable Read Only Memory (EEPROM), Flash Memory or other memory technology, Compact Disc Read Only Memory (CD-ROM), Digital Versatile Disc (DVD) or other optical storage, Magnetic tape cassettes, magnetic tape magnetic disk storage or other magnetic storage devices or any other non-transmission medium that can be used to store information that can be accessed by a computing device. Computer-readable media, as defined herein, excludes transitory computer-readable media, such as modulated data signals and carrier waves.

It should be noted that, herein, the terms "comprising", "comprising" or any other variation thereof are intended to encompass non-exclusive inclusion, such that a process, method, article or device comprising a series of elements includes not only those elements, It also includes other elements not expressly listed or inherent to such a process, method, article or apparatus. Without further limitation, an element qualified by the phrase "comprising a..." does not preclude the presence of additional identical elements in a process, method, article or apparatus that includes the element.

The above-mentioned serial numbers of the embodiments of the present invention are only for description, and do not represent the advantages or disadvantages of the embodiments.

From the description of the above embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be implemented by means of software plus a necessary general hardware platform, and of course hardware can also be used, but in many cases the former is better implementation. Based on this understanding, the technical solutions of the present invention can be embodied in the form of software products in essence or the parts that make contributions to the prior art, and the computer software products are stored in a storage medium (such as ROM/RAM, magnetic disk, CD), including several instructions to make a terminal (which may be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) execute the methods described in the various embodiments of the present invention.

The above are only the preferred embodiments of the present invention. It should be pointed out that for those skilled in the art, without departing from the principles of the present invention, several improvements and modifications can be made. It should be regarded as the protection scope of the present invention.

Claims (14)

1. A method for determining resources available for transmission, wherein the method comprises: determining that the physical random access channel PRACH opportunity is valid and/or invalid, and/or determining resources available for transmission, according to at least one of the first resource configuration and the second resource configuration; Wherein, the first resource configuration is the resource configuration corresponding to the backhaul link of the backhaul integrated IAB device, and the second resource configuration is the resource configuration corresponding to the access link of the IAB device; Wherein, in the step of determining whether the PRACH opportunity of the physical random access channel is valid and/or invalid, and/or determining the resources available for transmission according to at least one of the first resource configuration and the second resource configuration, the specific criteria are as follows: At least one of, determining that a PRACH opportunity is valid and/or invalid, and/or determining resources available for transmission: When the first resource is located outside the third resource, the PRACH opportunity is invalid; the third resource is: the resource allocated to the MT part; the first resource is: the resource corresponding to the PRACH opportunity of the MT part; When the first resource is located within the third resource, the PRACH opportunity is valid; the third resource is: the resource allocated to the MT part; the first resource is: the resource corresponding to the PRACH opportunity of the MT part; When the first resource is located within the fourth resource, the PRACH opportunity is valid; the fourth resource is: the first type of resource allocated to the DU part; the first resource is: the PRACH opportunity corresponding to the MT part resource; When the first resource is located within the fifth resource, the PRACH opportunity is valid; the fifth resource is: the resource configured for the MT part, and the fifth resource is the second type of resource configured for the DU part; The first resource is: the resource corresponding to the PRACH opportunity of the MT part; When the second resource is located within the sixth resource, the PRACH opportunity is valid; the sixth resource is: the second type of resource allocated to the DU part; the second resource is: corresponding to the PRACH opportunity of the DU part resource; When the second resource is located within the seventh resource, the PRACH opportunity is invalid; the seventh resource is: the first type of resource allocated to the DU part; the second resource is: the PRACH opportunity corresponding to the DU part resource; When the second resource is located within the eighth resource, the PRACH opportunity is invalid; the eighth resource is: the unavailable resource of the DU part; the second resource is: the resource corresponding to the PRACH opportunity of the DU part; When the first resource is located within the ninth resource, the ninth resource is unavailable to the DU part; the ninth resource is: the first type of resource configured for the DU part, or the first type of resource configured for the DU part. Two types of resources; the first resource is: the resource corresponding to the PRACH opportunity of the MT part. 2. method according to claim 1, is characterized in that, described PRACH opportunity is the PRACH opportunity of mobile terminal MT part; and / or, The PRACH opportunity is the PRACH opportunity of the DU part of the distributed unit. 3. The method according to claim 1, wherein the criterion is used in a case where the MT part and the DU part of the IAB device operate in a time division mode. 4. The method according to claim 1, characterized in that, according to at least one of the first resource configuration and the second resource configuration, determining that the physical random access channel PRACH opportunity is valid and/or invalid, and/or determining In the step of resources available for transmission, the PRACH opportunity is determined to be valid and/or invalid, and/or the resources available for transmission are determined according to at least one of the following criteria: When the first resource is located within the tenth resource, the PRACH opportunity is valid; the tenth resource is: the first type of resource allocated to the DU part; the first resource is: the PRACH opportunity corresponding to the MT part resource; When the second resource is located within the eleventh resource, the PRACH opportunity is valid; the eleventh resource is: a resource allocated to the MT part, and the resource direction is downlink or flexible; or, the eleventh resource are: resources allocated to the MT part but not used by the MT part; the second resources are: resources corresponding to the PRACH opportunities in the DU part, and the second resources are resources of the first type; When the second resource is located within the twelfth resource, the PRACH opportunity is valid; the twelfth resource is: the resource that is not allocated to the MT part but is allocated to the DU part; the second resource is: the DU part The resources corresponding to the PRACH opportunities; When the second resource is located within the thirteenth resource, the PRACH opportunity is invalid; the thirteenth resource is: the resource allocated to the MT part, and the resource direction is the uplink; the second resource is: the DU part of the resource resources corresponding to PRACH opportunities, and the second resources are resources of the first type; When the first resource is located within the fourteenth resource, the fourteenth resource is available to the DU part; the fourteenth resource is: configured to the DU part, and the resource direction is downlink or flexible first type resource; the first resource is: the resource corresponding to the PRACH opportunity of the MT part; In the case where the first resource is located within the fifteenth resource, the fifteenth resource is unavailable to the DU part; the fifteenth resource is the first type of resource configured for the DU part and the resource direction is uplink ; The first resource is: the resource corresponding to the PRACH opportunity of the MT part; In the case where the second resource is located within the sixteenth resource, the second resource is available to the DU part; the sixteenth resource is: a resource allocated to the MT part, and the resource direction is downlink or flexible; or, all The sixteenth resource is: the resource that is not allocated to the MT part; the second resource is: the resource corresponding to the PRACH opportunity of the DU part, and the resource that is configured to be used by the DU part; When the second resource is located within the seventeenth resource, the second resource is unavailable to the DU part; the seventeenth resource is: a resource allocated to the MT part, and the resource direction is uplink; the second resource The resources are: resources corresponding to the PRACH opportunities in the DU part, and the second resources are resources of the first type. 5. The method according to claim 4, wherein the criterion is used in the case where the MT part and the DU part of the IAB device operate in frequency division or space division mode. 6. The method according to claim 4, wherein: the first type of resources are: resources allocated to the DU part, but the availability needs to be judged according to the resource usage of the MT part, or allocated to the DU part , but the MT part has a higher usage priority resource than the DU part. 7. The method according to claim 1, wherein: The first type of resources are: resources allocated to the DU part, but the availability needs to be determined according to the resource usage of the MT part, or resources allocated to the DU part, but the MT part has a higher usage priority than the DU part ; The second type of resources are: resources allocated to the DU part and can be used independently, or resources allocated to the DU part, and the DU part has a higher use priority than the MT part. 8. A method for determining resources available for transmission, characterized in that the method comprises: determining that the physical random access channel PRACH opportunity is valid and/or invalid, and/or determining resources available for transmission, according to at least one of the first resource configuration and the second resource configuration; Wherein, the first resource configuration is the resource configuration corresponding to the backhaul link of the backhaul integrated IAB device, and the second resource configuration is the resource configuration corresponding to the access link of the IAB device; Wherein, in the step of determining whether the PRACH opportunity of the physical random access channel is valid and/or invalid, and/or determining the resources available for transmission according to at least one of the first resource configuration and the second resource configuration, the specific criteria are as follows: At least one of, determining that a PRACH opportunity is valid and/or invalid, and/or determining resources available for transmission: When the first resource is located within the tenth resource, the PRACH opportunity is valid; the tenth resource is: the first type of resource allocated to the DU part; the first resource is: the PRACH opportunity corresponding to the MT part resource; When the second resource is located within the eleventh resource, the PRACH opportunity is valid; the eleventh resource is: a resource allocated to the MT part, and the resource direction is downlink or flexible; or, the eleventh resource are: resources allocated to the MT part but not used by the MT part; the second resources are: resources corresponding to the PRACH opportunities in the DU part, and the second resources are resources of the first type; When the second resource is located within the twelfth resource, the PRACH opportunity is valid; the twelfth resource is: the resource that is not allocated to the MT part but is allocated to the DU part; the second resource is: the DU part The resources corresponding to the PRACH opportunities; When the second resource is located within the thirteenth resource, the PRACH opportunity is invalid; the thirteenth resource is: the resource allocated to the MT part, and the resource direction is the uplink; the second resource is: the DU part of the resource resources corresponding to PRACH opportunities, and the second resources are resources of the first type; When the first resource is located within the fourteenth resource, the fourteenth resource is available to the DU part; the fourteenth resource is: configured to the DU part, and the resource direction is downlink or flexible first type resource; the first resource is: the resource corresponding to the PRACH opportunity of the MT part; In the case where the first resource is located within the fifteenth resource, the fifteenth resource is unavailable to the DU part; the fifteenth resource is the first type of resource configured for the DU part and the resource direction is uplink ; The first resource is: the resource corresponding to the PRACH opportunity of the MT part; In the case where the second resource is located within the sixteenth resource, the second resource is available to the DU part; the sixteenth resource is: a resource allocated to the MT part, and the resource direction is downlink or flexible; or, all The sixteenth resource is: the resource that is not allocated to the MT part; the second resource is: the resource corresponding to the PRACH opportunity of the DU part, and the resource that is configured to be used by the DU part; When the second resource is located within the seventeenth resource, the second resource is unavailable to the DU part; the seventeenth resource is: a resource allocated to the MT part, and the resource direction is uplink; the second resource The resources are: resources corresponding to the PRACH opportunities in the DU part, and the second resources are resources of the first type. 9. The method according to claim 8, wherein the criterion is used when the MT part and the DU part of the IAB device work in frequency division or space division mode. 10. The method according to claim 8, wherein: the first type of resources are: resources allocated to the DU part, but the availability needs to be judged according to the resource usage of the MT part, or allocated to the DU part , but the MT part has a higher usage priority resource than the DU part. 11. An apparatus for determining resources available for transmission, wherein the apparatus comprises: a determining module, configured to determine, according to at least one of the first resource configuration and the second resource configuration, that the PRACH opportunity is valid and/or invalid, and/or determine the resources available for transmission; Wherein, the first resource configuration is the resource configuration corresponding to the backhaul link of the backhaul integrated IAB device, and the second resource configuration is the resource configuration corresponding to the access link of the IAB device; Wherein, in the step of determining whether the PRACH opportunity of the physical random access channel is valid and/or invalid, and/or determining the resources available for transmission according to at least one of the first resource configuration and the second resource configuration, the specific criteria are as follows: At least one of, determining that a PRACH opportunity is valid and/or invalid, and/or determining resources available for transmission: When the first resource is located outside the third resource, the PRACH opportunity is invalid; the third resource is: the resource allocated to the MT part; the first resource is: the resource corresponding to the PRACH opportunity of the MT part; When the first resource is located within the third resource, the PRACH opportunity is valid; the third resource is: the resource allocated to the MT part; the first resource is: the resource corresponding to the PRACH opportunity of the MT part; When the first resource is located within the fourth resource, the PRACH opportunity is valid; the fourth resource is: the first type of resource allocated to the DU part; the first resource is: the PRACH opportunity corresponding to the MT part resource; When the first resource is located within the fifth resource, the PRACH opportunity is valid; the fifth resource is: the resource configured for the MT part, and the fifth resource is the second type of resource configured for the DU part; The first resource is: the resource corresponding to the PRACH opportunity of the MT part; When the second resource is located within the sixth resource, the PRACH opportunity is valid; the sixth resource is: the second type of resource allocated to the DU part; the second resource is: corresponding to the PRACH opportunity of the DU part resource; When the second resource is located within the seventh resource, the PRACH opportunity is invalid; the seventh resource is: the first type of resource allocated to the DU part; the second resource is: the PRACH opportunity corresponding to the DU part resource; When the second resource is located within the eighth resource, the PRACH opportunity is invalid; the eighth resource is: the unavailable resource of the DU part; the second resource is: the resource corresponding to the PRACH opportunity of the DU part; When the first resource is located within the ninth resource, the ninth resource is unavailable to the DU part; the ninth resource is: the first type of resource configured for the DU part, or the first type of resource configured for the DU part. Two types of resources; the first resource is: the resource corresponding to the PRACH opportunity of the MT part. 12. An apparatus for determining resources available for transmission, wherein the apparatus comprises: a determining module, configured to determine, according to at least one of the first resource configuration and the second resource configuration, that the PRACH opportunity is valid and/or invalid, and/or determine the resources available for transmission; Wherein, the first resource configuration is the resource configuration corresponding to the backhaul link of the backhaul integrated IAB device, and the second resource configuration is the resource configuration corresponding to the access link of the IAB device; Wherein, in the step of determining whether the PRACH opportunity of the physical random access channel is valid and/or invalid, and/or determining the resources available for transmission according to at least one of the first resource configuration and the second resource configuration, the specific criteria are as follows: At least one of, determining that a PRACH opportunity is valid and/or invalid, and/or determining resources available for transmission: When the first resource is located within the tenth resource, the PRACH opportunity is valid; the tenth resource is: the first type of resource allocated to the DU part; the first resource is: the PRACH opportunity corresponding to the MT part resource; When the second resource is located within the eleventh resource, the PRACH opportunity is valid; the eleventh resource is: a resource allocated to the MT part, and the resource direction is downlink or flexible; or, the eleventh resource are: resources allocated to the MT part but not used by the MT part; the second resources are: the resources corresponding to the PRACH opportunities in the DU part, and the second resources are resources of the first type; When the second resource is located within the twelfth resource, the PRACH opportunity is valid; the twelfth resource is: the resource that is not allocated to the MT part but is allocated to the DU part; the second resource is: the DU part The resources corresponding to the PRACH opportunities; When the second resource is located within the thirteenth resource, the PRACH opportunity is invalid; the thirteenth resource is: the resource allocated to the MT part, and the resource direction is the uplink; the second resource is: the DU part of the resource resources corresponding to PRACH opportunities, and the second resources are resources of the first type; When the first resource is located within the fourteenth resource, the fourteenth resource is available to the DU part; the fourteenth resource is: configured to the DU part, and the resource direction is downlink or flexible first type resource; the first resource is: the resource corresponding to the PRACH opportunity of the MT part; In the case where the first resource is located within the fifteenth resource, the fifteenth resource is unavailable to the DU part; the fifteenth resource is the first type of resource configured for the DU part and the resource direction is uplink ; The first resource is: the resource corresponding to the PRACH opportunity of the MT part; In the case where the second resource is located within the sixteenth resource, the second resource is available to the DU part; the sixteenth resource is: a resource allocated to the MT part, and the resource direction is downlink or flexible; or, all The sixteenth resource is: the resource that is not allocated to the MT part; the second resource is: the resource corresponding to the PRACH opportunity of the DU part, and the resource that is configured to be used by the DU part; When the second resource is located within the seventeenth resource, the second resource is unavailable to the DU part; the seventeenth resource is: a resource allocated to the MT part, and the resource direction is uplink; the second resource The resources are: resources corresponding to the PRACH opportunities in the DU part, and the second resources are resources of the first type. 13. A communication device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, wherein the computer program is executed by the processor to achieve the The steps of the method of determining resources available for transmission as claimed in any one of claims 1 to 7, or the steps of the method of determining resources available for transmission as claimed in any one of claims 8 to 10. 14. A computer-readable storage medium on which a computer program is stored, characterized in that, when the computer program is executed by a processor, determining a resource available for transmission according to any one of claims 1 to 7 is implemented or a method of determining resources available for transmission as claimed in any one of claims 8 to 10.

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