WO2017071620A1 - Information notification method and device - Google Patents

Abstract

Disclosed are an information notification method and device. The method comprises: a notification end sending a data frame or a control encapsulation frame containing an HTC domain to a response end, wherein the HTC domain carries notification information and type indication information about the notification information, and the type indication information is used for indicating that the notification information carried by an MFB or OM domain contained in the HTC domain comprises one piece of the following: link adaptive information under a current transceiving mode of the notification end; information about a transceiving mode to which the notification end is to be switched; the information about the transceiving mode to which the notification end is to be switched and link adaptive information under the transceiving mode; and the notification end receiving a radio frame sent by the response end after receiving the notification information and the type indication information. The information notification method and device disclosed in the embodiments of the present invention can reduce the overhead caused by the transmission of notification information, and can increase the speed of notification.

Description

Information notification method and device Technical field

The embodiments of the present invention relate to the field of wireless communications, and in particular, to an information notification method and apparatus.

Background technique

With the development of wireless local area network (WLAN) technology, the transmission and reception capabilities of WLAN devices are also increasing. For example, the number of spatial streams (Nss) can be increased (in relation to the number of antennas). ), the bandwidth (BW, bandwidth) that can be used is also increasing. However, more antennas and larger bandwidths may consume more energy. Therefore, the WLAN allows the device to switch the OM (operating mode). For example, when there are many services, it can be fast by using a large bandwidth multi-antenna. Transmission, when there is less traffic, you can switch to the small bandwidth single antenna mode to reduce power consumption. These handovers require both the sender and the receiver to be notified so that the receiver informs the sender of the conversion of the receiving mode.

In the current WLAN system, the indication of the mode switching needs to be sent using a special management frame or a special transmission mode. However, these separate frame exchanges bring overhead, affect network efficiency, and separate frame switching to the contention channel. The delay is too large to quickly complete the indication of the receive mode transition. In addition, in the new receiving mode, the station has to go through a separate link adaptation process to find a suitable modulation and coding scheme (MCS) on the new link. In addition, notifications of the site's delivery mode are also interacted through separate management frames. In short, the traditional indication method of transceiver mode conversion will affect the efficiency of the network and bring delay.

Summary of the invention

In order to solve the above technical problem, an embodiment of the present invention provides an information notification method and apparatus, which can reduce the overhead caused by transmitting notification information and improve the notification speed.

In order to achieve the above technical purpose, an embodiment of the present invention provides an information notification method, including: the notification end sends a data frame including a high throughput control (HTC) domain or controls an encapsulated frame to give a ring The HTC domain carries the notification information and the type indication information of the notification information, where the type indication information is used to indicate the modulation and coding scheme feedback (MFB) included in the HTC domain. The notification information carried in the OM (operating mode) domain includes one of the following: link adaptation information in the current transceiver mode of the notification end; transceiver mode information to be switched to the notification end; and a transceiver mode to be switched to the notification end Information and link adaptation information in the transceiver mode; the notification end receives the radio frame sent by the response end after receiving the notification information and the type indication information.

The embodiment of the present invention further provides an information notification method, including: receiving, by the response end, a data frame or a control encapsulation frame that includes an HTC domain, where the HTC domain carries the notification information and the type indication information of the notification information. The type indication information is used to indicate that the notification information carried by the MFB or OM domain included in the HTC domain includes one of the following: link adaptation information in the current transceiver mode of the notification end; and transceiver information to be switched to the notification end. Transmitting and receiving mode information to be switched to the notification end and link adaptation information in the transceiver mode; after receiving the notification information and the type indication information, the response end sends a radio frame to the notification end.

The embodiment of the present invention further provides an information notification apparatus, which is applied to the notification end, and includes: a first sending module, configured to send a data frame including an HTC domain or control an encapsulated frame to a response end, where the HTC domain carries the notification information And the type indication information of the notification information, where the type indication information is used to indicate that the notification information carried by the MFB or the OM domain included in the HTC domain includes one of the following: the link adaptation information in the current transceiver mode of the notification end; The transceiver mode information to be switched to the notification end; the transceiver mode information to be switched to the notification end and the link adaptation information in the transceiver mode; the first receiving mode, configured to receive the notification message when receiving the response terminal And the radio frame sent after the type indication information.

The embodiment of the present invention further provides an information notification apparatus, which is applied to the response end, and includes: a second receiving module, configured to receive a data frame or a control encapsulation frame that is sent by the notification end and includes an HTC domain, where the HTC domain carries the notification The information and the type indication information of the notification information, the type indication information is used to indicate that the notification information carried by the MFB or the OM domain included in the HTC domain includes one of the following: the link adaptation information in the current transceiver mode of the notification end The transceiver mode information to be switched to the notification end; the transceiver mode information to be switched to the notification end and the link adaptation information in the transceiver mode; the second sending module is configured to receive the notification information and the type indication information After that, a radio frame is sent to the notification end.

In the embodiment of the present invention, a computer storage medium is also provided, and the computer storage medium can be stored. There is an execution instruction for executing the information notification method in the above embodiment.

In the embodiment of the present invention, the notification end sends a data frame including the HTC domain or a control encapsulation frame to the response end, where the HTC domain carries the notification information and the type indication information of the notification information, where the type indication information is used. The notification information carried in the MFB or the OM domain that is included in the HTC domain includes: one of the following: the link adaptation information in the current transceiver mode of the notification end; the transceiver mode information to be switched to by the notification end; the notification The transceiver mode information to be switched to and the link adaptation information in the transceiver mode; the notification end receives the radio frame sent by the responding end after receiving the notification information and the type indication information. The invention utilizes the data frame or the HTC field in the frame header of the control encapsulation frame to transmit the notification information packet in the transmitted data frame or the control encapsulation frame, and completes the transmission of the notification information without increasing the overhead, thereby avoiding the use management. The overhead of the frame (used to transmit notification information) alone to contend for the channel greatly increases the speed of notification. Moreover, the notification information in the present invention is carried by the MFB or OM domain included in the HTC domain, and no new information domain is added in the HTC domain of the frame header, which further reduces overhead and improves efficiency.

DRAWINGS

FIG. 1 is a flowchart of an information notification method according to an embodiment of the present invention;

2 is a flowchart of an information notification method according to an embodiment of the present invention;

3 is a diagram showing an example of an HTC domain in the prior art;

4 is a schematic diagram of an HTC domain in Embodiment 1 of the present invention;

FIG. 5 is a schematic diagram of an MFB or OM domain according to Embodiment 1 of the present invention; FIG.

6 is a schematic flowchart of Embodiment 2 of the present invention;

7 is a schematic flowchart 1 of Embodiment 5 of the present invention;

FIG. 8 is a second schematic flowchart of Embodiment 5 of the present invention.

detailed description

The embodiments of the present invention are described in detail below with reference to the accompanying drawings.

FIG. 1 is a flowchart of an information notification method according to an embodiment of the present invention. As shown in FIG. 1, the information notification method provided in this embodiment includes the following steps:

Step 101: The notification end sends a data frame including a high throughput control (HTC) field or a control encapsulation frame to the response end, where the HTC domain carries notification information and type indication information of the notification information, The type indication information is used to indicate that the notification information carried by the modulation and coding scheme feedback (MFB) or the OM (operating mode) field included in the HTC domain includes one of the following:

Notifying the link adaptation information in the current transceiver mode;

The transceiver mode information to be switched to by the notification end;

The transceiver mode information to be switched to and the link adaptation information in the transceiver mode.

In the embodiment of the present invention, the high throughput control (HTC) domain may include: a named HTC domain or a control domain carrying HTC domain content, where the control encapsulation frame may be a control frame encapsulated with control information. The above content is not limited in the embodiment, and will not be described below.

Specifically, the MFB or OM domain included in the HTC domain is a notification information field, and the MFB or OM domain has different information according to different types of indication information. In the embodiment of the present invention, the foregoing OM domain may be, but is not limited to, an operation mode indication (OMI) domain in the corresponding protocol, which is not described in detail below.

The transceiver mode information includes: receiving mode information of the notifying end and/or sending parameter information of the notifying end.

Further, when the notification information carried by the HTC domain includes the transceiver mode information to be switched by the notification end, the data frame or the control encapsulated frame carries the transceiver mode switching completion duration information.

In an embodiment, when the type indication information indicates that the notification information carried by the HTC domain is the link adaptation information in the current transceiver mode of the notification end, the MFB or OM domain included in the HTC domain carries at least the notification end. Link adaptation information in the current receive mode.

In an embodiment, when the type indication information indicates that the notification information carried by the HTC domain is the transceiver mode information to be switched by the notification end, the MFB or OM domain included in the HTC domain carries the notification end to be switched to. Receiving mode information, the receiving mode information including at least a number of spatial streams (Nss, number of spatial streams) And new bandwidth (BW, bandwidth).

In an embodiment, the foregoing sending parameter information may include, but is not limited to, at least a number of spatial streams (Nss), a transmission power information, and a transmission mode information, which are not described herein.

In an embodiment, when the type indication information indicates that the notification information carried by the HTC domain is the transceiver mode information to be switched by the notification terminal and the link adaptation information in the transceiver mode, the HTC domain includes The MFB or OM domain carries the receiving mode information to be switched by the notifying end and the link adaptation information in the receiving mode.

Further, the manner in which the HTC domain carries the type indication information of the notification information includes one of the following:

Carrying the type indication information by a reserved bit in the HTC domain;

Carrying the type indication information by using a reserved value of an information domain already existing in the HTC domain;

Carrying the type indication information by a combined reserved value of at least two information fields already existing in the HTC domain;

The information bit in the notification information carried by the HTC domain carries the type indication information of the notification information.

The foregoing notification information may be, but not limited to, a Control Information Subfield in the corresponding protocol, and the type indication information of the notification information may be, but not limited to, a Control Identifier Subfield in the corresponding protocol, that is, In this embodiment, the control identification sub-domain in the control information sub-domain carried by the HTC domain is used to indicate the information type of the control information sub-domain, which is not described below.

Further, the control encapsulation frame is an unresponsive control encapsulation frame.

Step 102: The notification end receives the radio frame sent by the responding end after receiving the notification information and the type indication information.

FIG. 2 is a flowchart of an information notification method according to an embodiment of the present invention. As shown in FIG. 2, the information notification method provided in this embodiment includes the following steps:

Step 201: The responding end receives the data frame or the control encapsulation frame that is sent by the notifying end, and the HTC domain carries the notification information and the type indication information of the notification information, where the type indication information is used. The notification information carried in the MFB or the OM domain that is included in the HTC domain includes: one of the following: the link adaptation information in the current transceiver mode of the notification end; the transceiver mode information to be switched to by the notification end; the notification The transceiver mode information to be switched to and the link adaptation information in the transceiver mode.

After the step 201, the method further includes: the responding end adjusts a sending mode of sending the wireless frame to the notifying end according to the received type indication information and the notification information. The sending mode is a mode supported in the notification information.

Further, when the notification information includes the transceiver mode information to be switched to by the notification terminal, the adjusting, by sending, to the notification terminal, a transmission mode of the radio frame, including: adjusting to the The notification side sends the transmission mode of the radio frame.

Step 202: After receiving the notification information and the type indication information, the response terminal sends a radio frame to the notification end.

Further, the radio frame carries an explicit or implicit notification, and is used to indicate that the responding end has successfully received the notification information and the type indication information.

Further, the explicit notification is carried by an HTC domain of the radio frame.

Further, the radio frame is a data frame or a control frame, where the data frame includes a null data frame, and the control frame includes an unencapsulated control frame.

The invention is described in detail below by means of a number of specific examples.

Embodiment 1

The WLAN station can use the HTC domain carried in the data frame and the control frame to perform the MCS feedback, that is, the link adaptation process, where the format of the HTC domain is as shown in FIG. 3, and it should be noted that the figure in this embodiment is Shown as a schematic diagram, does not limit the length and order of each information field in the HTC domain. As shown in Figure 3, the traditional HTC domain includes:

One or more link adaptive auxiliary domains, such as a MCQ (modulation and coding scheme request) field, an MSI (modulation and coding scheme request sequence identifier) field, and an MCS feedback sequence identifier (MFSI, Modulation and coding scheme feedback sequence identifier)

MCS (modulation and coding scheme feedback) field, the feedback is link adaptation information notification;

Reserved bits, ie unused bits;

Other domains, such as related control domains for reverse transmission, are used to indicate the information domain of the HTC domain class. The categories of the HTC domain include HT (high throughput), very high throughput (VHT), high Efficiency (HE, high efficiency) and the like.

In this embodiment, in order to implement fast receiving mode notification and/or link adaptation notification, the modified HTC domain is as shown in FIG. 4 and FIG. 5. Specifically, as shown in FIG. 4, the modified HTC domain includes: type indication information of the MFB or OM domain and an MFB or OM domain.

Specifically, the type indication information of the MFB or the OM domain is used to indicate the information type carried in the MFB/OM domain in the HTC domain, and the type indication information may be carried in one of the following manners:

The type indication information is carried by the unused reserved bits in the HTC domain, as shown in FIG. 4;

The type indication information is carried by the reserved value of an information field already existing in the HTC domain, as shown in FIG. 4, for example, the MSI domain has an unused reserved value, and when the MSI domain indicates the reserved value, it indicates the MFB. Or the OM domain carries the receiving mode notification information;

The type indication information is carried by the combined reserved value of the multiple information fields that are already in the HTC domain. For example, if the MSI domain and the MFSI domain have reserved values, the two may indicate the corresponding information type.

If the existing information field of the HTC domain has no reserved value, but the combination of the two information fields is a combined reserved value, it can also be used to indicate the type indication information, for example, a combination of some values of the MRQ domain, the MSI domain, and the MFSI domain. If this is not possible, the combination can be used to indicate type information;

The type indication information is carried by some reserved value or value range of the MFB or OM domain itself.

FIG. 5 shows three cases of the MFB or OM domain in the first embodiment of the present invention. The MFB or OM domain carries different information according to the different types of indication information described above. As shown in FIG. 5(a), the MFB or OM domain carries the MFB information, that is, only the link adaptation notification information is included; as shown in FIG. 5(b), the MFB or OM domain carries the transceiver mode notification information, for example, only includes receiving. Mode notification information; as shown in FIG. 5(c); the MFB or OM domain carries a transceiver mode to be switched to and link adaptation information in the transceiver mode, for example, including reception mode notification information for notifying that the mode is to be switched The new receiving mode also includes MCS feedback information for indicating MCS feedback in the new receiving mode, wherein the new receiving mode includes at least a new spatial stream number (Nss) and a new bandwidth (BW).

Embodiment 2

In this embodiment, the STA (STA) contends to transmit data to the STA2. If the STA1 wants to switch the reception mode from the large bandwidth to the small bandwidth to achieve energy saving, the STA1 carries the HTC in the data frame sent to the STA2. The domain is used and the HTC domain is used to notify the receiving mode to switch to STA2. Assume that the HTC domain is in the high throughput category (HT). The specific process is shown in Figure 6:

STA1 sends a data frame including an HT class HTC domain to the STA2, where the HTC field contains type indication information of the MFB or OM domain, and the type indication information is carried by a reserved bit in the HTC domain; for example, the type indication information field is 1 bit. When set to 0, the MFB field of the next 7 bits indicates the MCS feedback, that is, for link adaptation. When the field is set to 1, it means that the latter 7bits MFB domain no longer feeds back MCS, but It is replaced by a receiving mode information (ROM, receiving operating mode), which includes a number of spatial streams (Nss, number of spatial streams) (3 bits) and a bandwidth (BW, bandwidth) (such as 2 bits), and other domains are reserved bits. It is assumed here that the type indication field of the MFB or OM domain is set to 1, STA1 notifies the reception mode to switch to STA2, and the spatial stream in the subsequent reception mode information is set to 2 spatial streams, and the bandwidth is set to 20 MHz, which means that after notification to STA2 If STA2 wants to send data to STA1 later, the transmission bandwidth cannot be greater than 20MHz, and the number of transmission streams cannot be greater than 2;

After receiving the data frame including the HTC domain and receiving the receiving mode notification information, the STA2 sends the response frame of the data frame to the STA1, indicating that the notification is received, that is, the implicit description received in the response frame is received. The notification, STA1 receives the response frame of STA2, indicating that the above-mentioned reception mode notification has been correctly received.

In addition, if STA2 wants to send data to STA1 next, its transmission bandwidth cannot be greater than 20 MHz, and the number of transmission streams cannot be greater than 2. After STA1 sends the reception mode notification, it needs a period of time to switch. STA2 should use the receiving mode notified by STA1 to adjust the sending mode sent by STA1 to STA1. This period of time can be called transceiver mode switching. The duration of the duration, which may be predefined by the protocol, or may be notified to STA2 by STA1 through the above data frame.

Embodiment 3

In this embodiment, an access point (AP, Access Point) and multiple site STAs form a network, and The STA1 contends to send data to the AP. If STA1 wants to switch the reception mode from the large bandwidth to the small bandwidth to achieve energy saving, and wants to notify the AP of the link adaptation information on the small bandwidth, that is, the MCS feedback information, STA1 is transmitting. The HTC domain is carried in the data frame of the AP to complete the foregoing notification to the AP. Assuming that the HTC domain is a VHT class, the specific process is as follows:

STA1 sends a data frame containing an ultra high throughput (VHT) very high throughput class HTC domain to the AP, the HTC domain containing type indication information of the MFB or OM domain, the information passing the reserved value in the MSI domain in the HTC domain When the MSI field is set to a defined value, the MFB field of the next 15 bits is indicated by the existing protocol, for example, for link adaptation, including: current spatial stream number Nss (3 bits), current bandwidth BW (2bits), MCS (4bits) recommended in the current receiving mode, and signal-to-noise ratio (SNR) information (6bits) in the current mode; when the MSI field is set to a reserved value, it indicates the following 15bits The MFB field is used to notify the reception mode switching and to notify the link adaptation information in the new reception mode, including: a new reception mode (spatial stream number Nss, bandwidth BW) and link adaptation information in the new mode ( Recommended MCS, SNR information); assume that the MSI is set to the reserved value, STA1 notifies the receiving mode to switch to the AP, and notifies the link adaptation information, assuming that the spatial stream in the receiving mode notification information is set to 1 spatial stream, bandwidth setting 20MHz, The MCS is 5 and the SNR is 15 dB. This means that after the AP is notified to the AP, if the AP wants to send data to STA1 later, the transmission bandwidth cannot be greater than 20 MHz, the number of transmission streams cannot be greater than 1, and the AP is recommended to use MCS 5 to transmit data.

After receiving the data frame including the HTC domain and receiving the receiving mode/link adaptation notification information, the AP sends the response frame of the data frame to the STA1, indicating that the notification is received, that is, the entrainment is hidden in the response frame. The description of the formula receives the notification, and STA1 receives the response frame of the AP, indicating that the notification has been correctly received.

In addition, STA1 can also only notify the reception mode transition without notifying the link adaptation information. For example, the MSI is set to a reserved value, and the subsequent MFB or OM domain contains the reception mode and link adaptation notification information, but the link adaptation information (recommended MCS, SNR information) is set to a reserved value or a specific value. (For example, setting the MCS to a reserved value, or setting the MCS to the maximum MCS, and setting the SNR to a specific value such as the lowest SNR, indicating that the content indicating the MCS domain and the SNR domain is invalid, that is, does not include link adaptation information.

In addition, it should be noted that the present invention does not limit the category of the HTC domain. In addition to the HT category or the VHT category, there may be other variants in the future, such as a high efficiency (HE) category or other future defined categories. The HTC domain can be used to perform reception mode/link adaptation notification information using the idea defined by the present invention. send.

Embodiment 4

In this embodiment, the type indication information is carried by the MFB or the OM domain itself.

For example, for the HTC domain of the HT category, if the MFB or OM domain multiplexes the original MFB domain (7 bits), 802.11n defines 77 MCSs with an index number of 0-76, and a value greater than 76 can be considered meaningless. Values, the instructions for completing the MFB or OM domain and its type can use the following methods:

When the value of the 7-bit information field is 0-76, it indicates that the field is an MFB domain, that is, carrying link adaptation notification information; when both bits of the highest bit of the field are 1 (at this time, the value of 7 bits is greater than Or equal to 96), indicating that the lower 5 bits of the domain carry the receiving mode notification information, specifically, the bandwidth BW (2 bits) and the Nss (3 bits) in the receiving mode, so that the value range of the MFB or OM sub-domain is automatically Complete the type indication.

For example, for the HTC domain of the VHT class, the MFB or OM domain multiplexes the original MFB domain (15 bits, including 2 bits of BW, 3 bits of Nss, 4 bits of MCS, and 6 bits of SNR), and 802.11ac defines 10 types of MCS. If the value in the MCS field exceeds 9 as a reserved value, the following methods can be used to complete the indication of the MFB or OM subdomain and its type:

Manner 1: Set the MCS or SNR value to a reserved value. For example, if the MCS is set to 15, the BW and Nss fields are received mode notification information, and the new receiving bandwidth and the number of spatial streams are notified.

Manner 2: The MCS and SNR are set to specific values for indicating that the BW and Nss domains are receiving mode notification information.

Embodiment 5

This embodiment is used to explain the notification of the reception mode/link adaptation information using the control encapsulation frame.

The control frame and the management frame itself cannot carry the HTC domain, but the WLAN allows the control frame to be encapsulated, that is, the control wrapper frame, which can carry the HTC domain or other control domain containing the content defined by the HTC domain. Since the control frame is generally shorter than the data frame, it is advantageous to complete fast frame exchange and perform information transmission. The control encapsulation frame described herein generally refers to all control frames that can encapsulate the notification information carried by the present invention, as follows: The control frame may be an acknowledgement (ACK) frame or a block acknowledgment (Block ACK) frame.

For example, the AP contends to send a data frame to STA1, and STA1 sends a Control Frame Acknowledgement (ACK) frame or a Block Acknowledgement (Block ACK) frame to the AP. Suppose STA1 wants to change the receiving mode and notify the AP, but because of this data The transmission is initiated by the AP. In this transmission opportunity, STA1 is generally not allowed to send data frames. STA1 is only allowed to send control frames to respond. In this case, STA1 can control the encapsulation frame to encapsulate the response frame to carry the HTC domain. Receive mode/link adaptation information notification.

Specifically, as shown in FIG. 7, the AP sends the data frame 1 to the STA1, and the STA1 sends the ACK frame of the control encapsulation to the AP, where the HTC domain in the encapsulated ACK frame carries the reception mode/link adaptation notification information. After receiving the ACK frame, the AP continues to send data frame 2 to STA1. STA1 receives the data frame 2 and the default AP has correctly received the reception mode/link adaptation information notification; or, the AP explicitly displays in the transmitted data frame 2. Carrying an indication that STA1 has received its reception mode/link adaptation notification information, for example using the HTC field in data frame 2.

Alternatively, as shown in FIG. 8, the AP sends the data frame 1 to the STA1, and the STA1 sends the ACK frame of the control encapsulation to the AP, where the HTC domain in the encapsulated ACK frame carries the reception mode/link adaptation notification information. Assume that only one data of the AP needs to be sent to STA1, but in order to notify STA1 that it has correctly received the reception mode/link adaptation notification information in the ACK frame, the AP may send a radio frame to STA1 after receiving the ACK frame, explicit Or implicitly carrying information to inform STA1 that it has received its reception mode/link adaptation notification information. The above radio frame may be a control frame, such as an ACK frame, or an empty data frame containing only a frame header.

In addition, the notification end may also encapsulate the control frame that needs to respond and transmit, and receive the control response frame of the response end, and complete the notification of the receiving mode/link adaptation information by using the control frame exchange. For example, the notifying end sends a request-send (RTS, request to send) frame, and the responding end sends a clear (CTS) clear to send frame.

In addition, the embodiment of the present invention further provides an information notification apparatus, which is applied to the notification end, and includes: a first sending module, configured to send a data frame including an HTC domain or control an encapsulated frame to a response end, where the HTC domain carries The notification information and the type indication information of the notification information, where the type indication information is used to indicate that the notification information carried by the MFB or the OM domain included in the HTC domain includes one of the following: the notification end of the link in the current transceiver mode Adaptive information; the transceiver mode information to be switched to by the notification end; the transceiver mode information to be switched to the notification end and the link adaptation information in the transceiver mode; the first receiving mode, configured to receive the response The radio frame sent by the terminal after receiving the notification information and the type indication information.

Further, the manner in which the HTC domain carries the type indication information of the notification information includes one of the following:

Carrying the type indication information by a reserved bit in the HTC domain;

Carrying the type indication information by using a reserved value of an information domain already existing in the HTC domain;

Carrying the type indication information by a combined reserved value of at least two information fields already existing in the HTC domain;

The information bit in the notification information carried by the HTC domain carries the type indication information of the notification information.

In addition, the embodiment of the present invention further provides an information notification apparatus, which is applied to the response end, and includes: a second receiving module, configured to receive a data frame or a control encapsulation frame that is sent by the notification end and includes an HTC domain, where the HTC domain And carrying the notification information and the type indication information of the notification information, where the type indication information is used to indicate that the notification information carried by the MFB or the OM domain included in the HTC domain includes one of the following: the notification end of the current transmission and reception mode chain The path adaptation information; the transceiver mode information to be switched to by the notification end; the transceiver mode information to be switched to the notification end and the link adaptation information in the transceiver mode; and the second sending module configured to receive After the notification information and the type indication information, the wireless frame is sent to the notification end.

Further, the foregoing apparatus further includes: a processing module, configured to adjust a transmission mode of transmitting the radio frame to the notification end according to the received type indication information and the notification information.

In addition, the specific processing flow of the above device is the same as that described above, and thus will not be described herein.

In a practical application, the first sending module and the second sending module are, for example, a communication component having an information transmitting capability, such as a transmitter, and the first receiving module and the second receiving module are, for example, receivers having information receiving capabilities. A communication element, such as a processor or the like having information processing capabilities. However, the present invention is not limited thereto.

Embodiments of the present invention also provide a storage medium. Optionally, in the embodiment, the foregoing storage medium may be configured to store program code for performing the following steps:

S1. The notification end sends a data frame including a high throughput control HTC domain or a control encapsulation frame to the response end, where the HTC domain carries notification information and type indication information of the notification information, and the type indication information is used to indicate modulation and coding included in the HTC domain. The notification information carried by the policy feedback MFB or the transceiver mode OM domain includes one of the following: link adaptation information in the current transceiver mode of the notification end; transceiver mode information to be switched to the notification end; and transceiver mode information to be switched to the notification end and Link adaptation information in the transceiver mode;

S2. The notification end receives the radio frame sent by the response end after receiving the notification information and the type indication information.

Optionally, in this embodiment, the foregoing storage medium may include, but not limited to, a USB flash drive, a Read-Only Memory (ROM), a Random Access Memory (RAM), a mobile hard disk, and a magnetic memory. A variety of media that can store program code, such as a disc or a disc.

The basic principles and main features of the present invention and the advantages of the present invention are shown and described above. The present invention is not limited by the above-described embodiments, and the above-described embodiments and the description are merely illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention. And modifications are intended to fall within the scope of the invention as claimed.

Industrial applicability

In the embodiment of the present invention, the notification end sends a data frame including the HTC domain or a control encapsulation frame to the response end, where the HTC domain carries the notification information and the type indication information of the notification information, where the type indication information is used. The notification information carried in the MFB or the OM domain that is included in the HTC domain includes: one of the following: the link adaptation information in the current transceiver mode of the notification end; the transceiver mode information to be switched to by the notification end; the notification The transceiver mode information to be switched to and the link adaptation information in the transceiver mode; the notification end receives the radio frame sent by the responding end after receiving the notification information and the type indication information. The invention utilizes the data frame or the HTC field in the frame header of the control encapsulation frame to transmit the notification information packet in the transmitted data frame or the control encapsulation frame, and completes the transmission of the notification information without increasing the overhead, thereby avoiding the use management. The overhead of the frame (used to transmit notification information) alone to contend for the channel greatly increases the speed of notification. Moreover, the notification information in the present invention is carried by the MFB or OM domain included in the HTC domain, and no new information domain is added in the HTC domain of the frame header, which further reduces overhead and improves efficiency.

Claims (18)

An information notification method, including: The notification end sends a data frame including a high throughput control HTC domain or a control encapsulation frame to the response end, where the HTC domain carries notification information and type indication information of the notification information, where the type indication information is used to indicate the HTC The notification information carried by the modulation and coding policy feedback MFB or the transceiver mode OM domain included in the domain includes one of the following: the link adaptation information in the current transceiver mode of the notification terminal; and the transceiver mode information to be switched to by the notification terminal; Transceiver mode information to be switched to by the notification end and link adaptation information in the transceiving mode; The notification end receives the radio frame sent by the responding end after receiving the notification information and the type indication information. The method of claim 1, wherein the transceiving mode information comprises: receiving mode information of the notifying end and/or transmitting parameter information of the notifying end. The method according to claim 1, wherein when the notification information carried by the HTC domain includes the transceiver mode information to be switched by the notification terminal, the data frame or the control encapsulated frame carries the transceiver mode switching completion duration information. The method according to claim 1, wherein when the type indication information indicates that the notification information carried by the HTC domain is link adaptation information in the current transceiver mode of the notification end, the MFB included in the HTC domain Or the OM domain carries at least the link adaptation information in the current receiving mode of the notification end. The method according to claim 1, wherein when the type indication information indicates that the notification information carried by the HTC domain is the transceiver mode information to be switched by the notification terminal, the MFB or OM domain included in the HTC domain And carrying the receiving mode information to be switched by the notification end, where the receiving mode information includes at least a new spatial stream number Nss and a new bandwidth BW. The method according to claim 1, wherein when the type indication information indicates that the notification information carried by the HTC domain is the transceiver mode information to be switched by the notification terminal and the link adaptation information in the transceiver mode The MFB or OM domain included in the HTC domain carries the receiving mode information to be switched by the notifying end and the link adaptation information in the receiving mode. The method of claim 1, wherein the manner in which the HTC domain carries the type indication information of the notification information comprises one of the following: Carrying the type indication information by a reserved bit in the HTC domain; Carrying the type indication information by using a reserved value of an information domain already existing in the HTC domain; Carrying the type indication information by a combined reserved value of at least two information fields already existing in the HTC domain; The information bit in the notification information carried by the HTC domain carries the type indication information of the notification information. The method of claim 1 wherein said controlling the encapsulated frame is an unresponsive control encapsulated frame. An information notification method, including: The responding end receives the data frame or the control encapsulation frame that is sent by the notifying end, and the HTC domain carries the notification information and the type indication information of the notification information, where the type indication information is used to indicate that the HTC domain includes The notification information carried by the MFB or the OM domain includes one of the following: the link adaptation information in the current transceiver mode of the notification end; the transceiver mode information to be switched to the notification end; and the sending and receiving of the notification end to be switched Mode information and link adaptation information in the transceiver mode; After receiving the notification information and the type indication information, the responding end sends a radio frame to the notification end. The method of claim 9, wherein the radio frame carries an explicit or implicit notification for indicating that the response terminal has successfully received the notification information and type indication information. The method of claim 10 wherein said explicit notification is carried by an HTC domain of said radio frame. The method of claim 9, wherein the radio frame is a data frame or a control frame, wherein the data frame comprises a null data frame, and the control frame comprises an unencapsulated control frame. The method of claim 9, wherein the responding end receives the data frame including the HTC domain or the control encapsulated frame sent by the notifying end, and further includes: the responding end according to the received type indication information and the notification information, Adjusting a transmission mode in which a radio frame is transmitted to the notification terminal. The method according to claim 13, wherein when the notification information includes the transceiver mode information to be switched by the notification terminal, the adjusting sends a transmission mode of the radio frame to the notification terminal, including: in the transceiver mode After the handover completion time, the transmission mode of transmitting the radio frame to the notification terminal is adjusted. An information notification device is applied to the notification end, and includes: a first sending module, configured to send a data frame including an HTC domain or a control encapsulation frame to the response end, where the HTC domain carries notification information and type indication information of the notification information, where the type indication information is used The notification information carried in the MFB or the OM domain that is included in the HTC domain includes: one of the following: the link adaptation information in the current transceiver mode of the notification end; the transceiver mode information to be switched to by the notification end; the notification The transceiver mode information to be switched to and the link adaptation information in the transceiver mode; The first receiving mode is configured to receive a radio frame that is sent by the responding end after receiving the notification information and the type indication information. The apparatus according to claim 15, wherein the manner in which the HTC domain carries the type indication information of the notification information comprises one of the following: Carrying the type indication information by a reserved bit in the HTC domain; Carrying the type indication information by using a reserved value of an information domain already existing in the HTC domain; Carrying the type indication information by a combined reserved value of at least two information fields already existing in the HTC domain; The information bit in the notification information carried by the HTC domain carries the type indication information of the notification information. An information notification device is applied to the response end, and includes: a second receiving module, configured to receive a data frame or a control encapsulation frame that is sent by the notification end, where the HTC domain carries the notification information and the type indication information of the notification information, where the type indication information is used to indicate The notification information carried by the MFB or OM domain included in the HTC domain includes one of the following: the link adaptation information in the current transceiver mode of the notification end; the transceiver mode information to be switched to the notification end; the notification end Transceiver mode information to be switched to and link adaptation information in the transceiving mode; The second sending module is configured to send a radio frame to the notification end after receiving the notification information and the type indication information. The apparatus according to claim 17, further comprising: a processing module configured to adjust a transmission mode of transmitting the radio frame to the notifying end according to the received type indication information and the notification information.

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