WO2023131062A1

WO2023131062A1 - Communication method and communication apparatus for stream classification service

Info

Publication number: WO2023131062A1
Application number: PCT/CN2022/143715
Authority: WO
Inventors: 黄国刚; 郭宇宸; 李云波; 淦明; 蒙特穆罗麦克
Original assignee: 华为技术有限公司
Priority date: 2022-01-07
Filing date: 2022-12-30
Publication date: 2023-07-13
Also published as: CN116455513A

Abstract

The embodiment of the present application provides a communication method and apparatus for a stream classification sevice (SCS). The method comprises: a station determines a first QoS characteristics element, the first QoS characteristics element comprising a first TID field, the first TID field being used for indicating a service identifier of a first SCS stream, and the first QoS characteristics element being used for indicating a QoS parameter of the first SCS stream; the station sends a first SCS request frame to an access point, the first SCS request frame comprising a first QoS characteristics element, and the first SCS request frame being used for requesting to create a first SCS stream. In this way, SCS streams with parameterized QoS and SCS streams without parameterized QoS can be distinguished. The embodiments of the present application can be applied to systems supporting 802.11be or EHT standards.

Description

Communication method and communication device for flow classification service

This application claims the priority of a Chinese invention patent application with an application date of January 7, 2022, an application number of 202210018383.X, and an application name of "A Communication Method and Communication Device for Stream Classification Services", the entire contents of which are incorporated by reference incorporated in this application.

technical field

The embodiments of the present application relate to the communication field, and more specifically, relate to a communication method and a communication device for a flow classification service.

Background technique

With the development of the mobile Internet and the popularity of smart terminals, data traffic is increasing rapidly. Wireless local area network (wireless local area network, WLAN) technology has become one of the mainstream mobile broadband access technologies by virtue of its advantages of high speed and low cost.

The standards mainly adopted by the WLAN technology are Institute of Electrical and Electronics Engineers (Institute of Electrical and Electronics Engineers, IEEE) 802.11 series. Due to the increasing demand of users for the quality of communication services, the IEEE 802.11be standard application was born, which can be used to meet the needs of users in terms of high throughput, low jitter and low delay. The IEEE 802.11be standard is also known as Extremely high throughput (EHT) standard.

The 802.11be standard supports the stream classification service (SCS) mechanism. Specifically, a station (station, STA) can negotiate the quality of service (quality of service, QoS ) parameters, and further, the STA can transmit the data of the SCS flow with QoS requirements with the associated AP. Among them, the SCS stream with QoS requirements can be called SCS stream with parameterized QoS (SCS stream with parameterized QoS), correspondingly, the SCS stream without QoS requirements can be called non-parameterized QoS SCS stream (SCS stream without parameterized QoS). QoS).

802.11 data transmission is based on the traffic identifier (TID), and in the current SCS mechanism, multiple SCS flows can be mapped to the same TID. In this case, SCS flows with parameterized QoS and non- The SCS flows with parameterized QoS may be mapped to the same TID, which will cause the QoS parameter requirements of the corresponding SCS flows to be meaningless.

Contents of the invention

Embodiments of the present application provide a communication method and a communication device for flow classification services, which can distinguish between SCS flows with parameterized QoS and SCS flows without parameterized QoS.

In the first aspect, a communication method for traffic classification services is provided. The method may be executed by a station, or may also be executed by a chip or a circuit configured in the station, which is not limited in this application. The following takes the implementation by the site as an example for illustration.

The method includes: the station determines a first QoS characteristic element (QoS characteristics element), the first QoS characteristic element includes a first TID field, the first TID field is used to indicate the service identifier of the first SCS flow, and the first QoS characteristic The element is used to indicate the QoS parameters of the first SCS flow; the station sends the first SCS request frame to the access point, the first SCS request frame includes the first QoS feature element, and the first SCS request frame is used to request the creation of the first SCS flow.

According to the solution of the embodiment of this application, the first TID field is used as the service identifier of the first SCS flow, and the first SCS is an SCS flow with parameterized QoS, so that the SCS flow with parameterized QoS and the non-parameterized SCS flow can be distinguished SCS flow for QoS.

With reference to the first aspect, in some implementation manners of the first aspect, the value of the first TID field is any one of 8 to 15.

Based on the above scheme, set the TID of the SCS flow with parameterized QoS to 8-15, correspondingly, the TID of the SCS flow without parameterized QoS is still 0-7, which can avoid indicating the service identifier of the SCS flow with parameterized QoS The value of is the same as that of the service identifier of the SCS flow without parameterized QoS, so that the SCS flow with parameterized QoS and the SCS flow without parameterized QoS can be distinguished by TID.

With reference to the first aspect, in some implementation manners of the first aspect, the first QoS feature element further includes a first direction field, where the first direction field is used to indicate the transmission direction of the first SCS flow, and the first direction field And the first TID field is used to identify the first SCS stream.

Therefore, in this embodiment of the present application, in addition to identifying the SCS flow with parameterized QoS through the SCSID, the SCS flow with parameterized QoS can also be identified jointly through the TID and the direction field, so that different SCS flows with parameterized QoS can be distinguished.

On the other hand, in this embodiment of the present application, the first SCS flow is jointly identified by the first direction field and the first TID field, so that when the data transmission of the first SCS flow is performed, the TID field and the data transmission direction of the data frame header can be to distinguish data of different SCS flows with parameterized QoS.

With reference to the first aspect, in some implementations of the first aspect, the method further includes: the station receives a first SCS response frame, the first SCS response frame is used to respond to the first SCS request frame, and the first SCS response frame Used to indicate that the first SCS stream is accepted.

With reference to the first aspect, in some implementations of the first aspect, the method further includes: the station receives a first SCS response frame, the first SCS response frame is used to respond to the first SCS request frame, and the first SCS response frame It is used to indicate whether the first SCS flow is accepted; if the first SCS flow is accepted, the station sends a second SCS request frame, and the second SCS request frame includes a second QoS characteristic element, and the second QoS characteristic element includes the first Two TID fields and a second direction field, the second TID field is used to indicate the service identifier of the second SCS flow, the second direction field is used to indicate the transmission direction of the second SCS flow, and the second direction field and the second TID are used to identify The second SCS flow, the second SCS request frame is used to request to create the second SCS flow, wherein, the value of the second direction field is different from that of the first direction field; or, the value of the second TID field is different from that of the first TID field or, the value of the second direction field is different from the value of the first direction field, and the value of the second TID field is different from the value of the first TID field.

Based on the above solution, if the first SCS flow is accepted, the TID field and direction field used to identify the second SCS flow will be different from those of the first SCS flow, thus ensuring the uniqueness of the identification of the SCS flow with parameterized QoS .

With reference to the first aspect, in some implementations of the first aspect, the method further includes: the station receives a first SCS response frame, the first SCS response frame is used to respond to the first SCS request frame, and the first SCS response frame is used to Indicate that the first SCS flow is accepted; the station sends a second SCS request frame, the second SCS request frame includes a second QoS feature element, the second QoS feature element includes a second TID field and a second direction field, and the second TID field is used for Indicates the service identifier of the second SCS flow, the second direction field is used to indicate the transmission direction of the second SCS flow, and the second direction field and the second TID are used to identify the second SCS flow.

Based on the above solution, if the first SCS flow is accepted, and the TID field and direction field used to identify the second SCS flow are the same as those of the first SCS flow, the access point will remove the first SCS flow, including the related QoS The parameter information and the identification mode can ensure the uniqueness of the identification of the SCS flow with parameterized QoS.

With reference to the first aspect, in some implementations of the first aspect, the first QoS feature element includes a first user priority field, the first user priority field is a reserved field, and the first SCS request frame further includes a first flow classification element, the first flow classification element is used to indicate the identification mode of the first SCS flow, the first flow classification element includes a second user priority field, and the second user priority field is used to indicate the priority of the first SCS flow.

Based on the above solution, it is possible to avoid the different values of the user priority fields in the QoS feature element and the flow classification element, which may lead to parsing errors at the receiving end.

With reference to the first aspect, in some implementation manners of the first aspect, the first QoS feature element includes a first user priority field, and the first SCS request frame further includes a first flow classification element, and the first flow classification element is used for Indicates the identification method of the first SCS flow. The first flow classification element includes the second user priority field. The value of the first user priority field is the same as the value of the second user priority field. The second user priority field is used for Indicates the priority of the first SCS stream.

With reference to the first aspect, in some implementation manners of the first aspect, the first SCS request frame further includes a second flow classification element, the second flow classification element is used to indicate the identification mode of the first SCS flow, and the second The flow classification element includes a third user priority field, and the value of the third user priority field is the same as the value of the second user priority field.

Based on the above solution, it is possible to avoid different values of the user priority fields in multiple flow classification elements, which may cause parsing errors at the receiving end.

With reference to the first aspect, in some implementations of the first aspect, the first SCS request frame further includes a service identifier and link TID-To-Link mapping element, and the TID-To-Link mapping element is used to indicate the service identifier Mapping rules with links.

With reference to the first aspect, in some implementations of the first aspect, the TID-To-Link mapping element includes a first field and a link mapping existence bitmap, and the first field is used to indicate the link mapping existence bit The length of the graph.

Therefore, in the embodiment of the present application, during the interaction of the SCS request/response frame, the TID-To-Link mapping negotiation can be performed at the same time, which helps to save resources.

With reference to the first aspect, in some implementations of the first aspect, the first SCS request frame further includes an enhanced distributed channel access parameter set element, and the enhanced distributed channel access parameter set element is used to indicate the channel of the station access parameters.

Therefore, in the embodiment of the present application, the station can request new EDCA parameters, so as to better participate in channel access, so as to support the QoS requirements of the SCS flow data.

With reference to the first aspect, in some implementations of the first aspect, the method further includes: the station receives a first SCS response frame, the first SCS response frame is used to respond to the first SCS request frame, and the first SCS response frame is used to Indicates that the first SCS stream is accepted; the station uses the channel access parameters indicated by the enhanced distributed channel access parameter set element to perform channel access.

With reference to the first aspect, in some implementations of the first aspect, the station uses the channel access parameters indicated by the elements of the enhanced distributed channel access parameter set to perform channel access, including: when the first SCS request frame requests When at least one SCS flow in the created SCS flow has data to be transmitted, the station uses the channel access parameters indicated by the enhanced distributed channel access parameter set element to perform channel access; or, when the first SCS request frame requests the created SCS When there is data to be transmitted in the SCS flow mapped to the AC of the first access type of the station, the first AC of the station uses the channel access parameters indicated by the element of the enhanced distributed channel access parameter set to perform channel access.

With reference to the first aspect, in some implementations of the first aspect, the method further includes: sending a first frame, where the first frame includes a measurement report element, where the measurement report element includes a second field, where the second field is used for Indicates the number of the first media access control service data unit (media access control service data unit, MSDU), and the first MSDU is an MSDU successfully transmitted within the range of the delay upper limit indicated in the first QoS characteristic element.

Therefore, this application reports the measurement report so that the access point can calculate the MSDU packet delivery ratio currently reached by the data of the SCS flow according to the measurement report, and then decide whether to take measures to improve the SCS flow according to the report QoS parameters.

With reference to the first aspect, in some implementation manners of the first aspect, the measurement report element further includes a third field, and the third field is used to indicate whether the second field exists.

In the second aspect, a communication method for traffic classification services is provided. The method may be executed by an access point, or may also be executed by a chip or a circuit configured in the access point, which is not limited in this application. The following takes the execution by the access point as an example for description.

The method includes: the access point receives a first SCS request frame from the station, and the first SCS request frame is used to request to create a first SCS flow; the access point sends the first SCS for responding to the first SCS request frame to the station A response frame, the first SCS response frame is used to indicate whether the first SCS flow is accepted, the first SCS response frame includes a third QoS feature element, the third QoS feature element includes a third service flow identifier TID field, and the third TID The field is used to indicate the service identifier of the first SCS flow, and the third QoS characteristic element is used to indicate the QoS parameter of the first SCS flow.

According to the solution of the embodiment of this application, the first TID field or the third TID field is used as the service identifier of the first SCS flow, and the first SCS is an SCS flow with parameterized QoS, so that SCSs with parameterized QoS can be distinguished flow and SCS flow with non-parametric QoS.

With reference to the second aspect, in some implementation manners of the second aspect, the value of the third TID field is any one of 8 to 15.

With reference to the second aspect, in some implementation manners of the second aspect, the third QoS feature element further includes a third direction field, the third direction field is used to indicate the transmission direction of the first SCS stream, the third direction field and the first Three TIDs are used to identify the first SCS flow.

On the other hand, the embodiment of the present application uses the direction field and the TID field to jointly identify the SCS flow with parameterized QoS, so that when the data transmission of the first SCS flow is performed, it can be distinguished based on the TID field of the data frame header and the data transmission direction. Data of different SCS flows with parameterized QoS.

With reference to the second aspect, in some implementation manners of the second aspect, the first SCS response frame is used to indicate that the first SCS stream is accepted.

With reference to the second aspect, in some implementations of the second aspect, the method further includes: the access point receives a second SCS request frame, where the second SCS request frame includes a second QoS characteristic element, and the second QoS characteristic element includes The second TID field and the second direction field, the second TID field is used to indicate the service identifier of the second SCS flow, the second direction field is used to indicate the transmission direction of the second SCS flow, the second direction field and the second TID are used for Identifying the second SCS flow, the second SCS request frame is used to request to create the second SCS flow, wherein, the value of the second direction field is different from that of the first direction field; or, the value of the second TID field is different from that of the first TID The values of the fields are different; or, the value of the second direction field is different from that of the first direction field, and the value of the second TID field is different from that of the first TID field.

Based on the above scheme, if the first SCS flow is accepted, the TID field and direction field used to identify the second SCS flow will be different from those of the first SCS flow, thus ensuring the uniqueness of the TID identifier of the SCS flow with parameterized QoS sex.

With reference to the second aspect, in some implementations of the second aspect, the first SCS response frame is used to indicate that the first SCS flow is accepted, and the method further includes: the access point receives the second SCS request frame, and the second SCS request The frame includes a second QoS feature element, the second QoS feature element includes a second TID field and a second direction field, the second TID field is used to indicate the service identifier of the second SCS flow, and the second direction field is used to indicate the second SCS flow transmission direction, the second direction field and the second TID are used to identify the second SCS flow, and the second SCS request frame is used to request the creation of the second SCS flow; if the value of the second direction field is the same as the value of the first direction field are the same, and the value of the second TID field is the same as the value of the first TID field, the access point deletes the locally stored information of the first SCS flow.

Based on the above solution, if the first SCS flow is accepted, and the TID field and direction field used to identify the second SCS flow are the same as those of the first SCS flow, the access point can remove the information of the first SCS flow, including related The QoS parameter information and identification method can ensure the uniqueness of the TID identification of the SCS flow with parameterized QoS.

Optionally, the access point deletes locally stored information of the first SCS flow, including: deleting locally stored QoS information of the first SCS flow, an identification method of the first SCS flow, identification information of the first SCS flow, and the like.

With reference to the second aspect, in some implementations of the second aspect, the third QoS feature element includes a fourth user priority field, the fourth user priority field is a reserved field, and the first SCS response frame further includes a third stream A classification element, the third flow classification element is used to indicate the identification mode of the first SCS flow, the third flow classification element includes a fifth user priority field, and the fifth user priority field is used to indicate the priority of the first SCS flow.

With reference to the second aspect, in some implementations of the second aspect, the third QoS feature element includes a fourth user priority field, and the first SCS response frame further includes a third flow classification element, and the third flow classification element is used for Indicates the identification method of the first SCS flow, the third flow classification element includes the fifth user priority field, the value of the fifth user priority field is the same as the value of the fourth user priority field, and the fifth priority field is used for Indicates the priority of the first SCS stream.

With reference to the second aspect, in some implementations of the second aspect, the first SCS response frame further includes a fourth flow classification element, the fourth flow classification element is used to indicate the identification method of the first SCS flow, and the fourth flow classification The element includes a sixth user priority field, and the value of the sixth user priority field is the same as the value of the fifth user priority field.

With reference to the second aspect, in some implementations of the second aspect, the first SCS response frame further includes a service identifier and link TID-To-Link mapping element, and the TID-To-Link mapping element is used to indicate the service identifier and link TID-To-Link mapping element. Link mapping rules.

With reference to the second aspect, in some implementations of the second aspect, the TID-To-Link mapping element includes a first field and a link mapping existence bitmap, and the first field is used to indicate the link mapping existence bitmap length.

With reference to the second aspect, in some implementations of the second aspect, the first SCS response frame further includes an enhanced distributed channel access parameter set element, and the enhanced distributed channel access parameter set element is used to indicate the channel access parameter set element of the station. input parameters.

Therefore, in the embodiment of the present application, the access point can indicate new EDCA parameters, so that the station can better participate in channel access, so as to support the QoS requirement of the SCS flow data.

In the third aspect, a method for transmitting a flow classification service is provided, and the method may be performed by a station, or may also be performed by a chip or a circuit configured in the station, or may also be performed by an access point, or may also It is executed by a chip or a circuit configured in the access point, which is not limited in the present application.

The method includes: sending two frames, the second frame includes a TID-To-Link mapping element, and the TID-To-Link mapping element is used to indicate a mapping rule between a service identifier and a link.

With reference to the third aspect, in some implementations of the third aspect, the TID-To-Link mapping element includes a first field and a link mapping existence bitmap, and the first field is used to indicate that the link mapping existence bit The length of the graph.

In a fourth aspect, a method for transmitting a flow classification service is provided, and the method may be performed by a station, or may also be performed by a chip or a circuit configured in the station, or may also be performed by an access point, or may also It is executed by a chip or a circuit configured in the access point, which is not limited in the present application.

The method includes: sending three frames, the third frame includes an enhanced distributed channel access parameter set element, and the enhanced distributed channel access parameter set element is used to indicate channel access parameters of the station.

Therefore, the embodiment of the present application can indicate new EDCA parameters, so that the station can better participate in channel access, so as to support the QoS requirement of the SCS flow data.

With reference to the fourth aspect, in some implementations of the fourth aspect, the enhanced distributed channel access parameter set element is used to indicate: the station uses the channel access parameters indicated by the enhanced distributed channel access parameter set element to perform channel access.

With reference to the fourth aspect, in some implementations of the fourth aspect, the station uses the channel access parameters indicated by the elements of the enhanced distributed channel access parameter set to perform channel access, including: when the first SCS request frame requests to create When at least one SCS flow in the SCS flow has data to be transmitted, the station uses the channel access parameters indicated by the enhanced distributed channel access parameter set element to perform channel access; or, when the SCS flow requested by the first SCS request frame is created When the SCS flow mapped to the first access type AC of the station has data to be transmitted, the first AC of the station uses the channel access parameters indicated by the element of the enhanced distributed channel access parameter set to perform channel access.

In the fifth aspect, a method for transmitting traffic classification services is provided. This method can be executed by a station, or can also be executed by a chip or circuit configured in the station. This application does not limit this, and the following takes execution by the station as an example. Be explained.

The method includes: the station sends a first frame, the first frame includes a measurement report element, the measurement report element includes a second field, and the second field is used to indicate the number of the first MSDU, the first MSDU is in the first QoS MSDUs successfully transmitted within the upper bound of the delay indicated in the Characteristic element.

With reference to the fifth aspect, in some implementation manners of the fifth aspect, the measurement report element further includes a third field, and the third field is used to indicate whether the second field exists.

In a sixth aspect, a communication device is provided, and the device may be implemented by a station, or may also be implemented by a chip or a circuit configured in the station, which is not limited in the present application.

The device includes: a processing unit, configured to determine a first QoS feature element, the first QoS feature element includes a first TID field, the first TID field is used to indicate a service identifier of the first SCS flow, and the first QoS feature element Used to indicate the QoS parameter of the first SCS flow; the sending unit is used to send the first SCS request frame to the access point, the first SCS request frame includes the first QoS feature element, and the first SCS request frame is used to request the creation First SCS stream.

With reference to the sixth aspect, in some implementation manners of the sixth aspect, the value of the first TID field is any one of 8 to 15.

With reference to the sixth aspect, in some implementation manners of the sixth aspect, the first QoS feature element further includes a first direction field, the first direction field is used to indicate the transmission direction of the first SCS flow, and the first direction field And the first TID field is used to identify the first SCS stream.

With reference to the sixth aspect, in some implementation manners of the sixth aspect, the transceiver unit is further configured to: receive a first SCS response frame, the first SCS response frame is used to respond to the first SCS request frame, and the first SCS response frame frame is used to indicate that the first SCS stream is accepted.

With reference to the sixth aspect, in some implementation manners of the sixth aspect, the transceiver unit is further configured to: receive a first SCS response frame, the first SCS response frame is used to respond to the first SCS request frame, and the first SCS response frame The frame is used to indicate whether the first SCS flow is accepted; the processing unit is also used to: if the first SCS flow is accepted, send a second SCS request frame, the second SCS request frame includes a second QoS feature element, the The second QoS feature element includes a second TID field and a second direction field, the second TID field is used to indicate the service identifier of the second SCS flow, the second direction field is used to indicate the transmission direction of the second SCS flow, and the second direction field and the second TID are used to identify the second SCS flow, and the second SCS request frame is used to request to create the second SCS flow, wherein the value of the second direction field is different from that of the first direction field; or, the value of the second TID field The value is different from the value of the first TID field; or, the value of the second direction field is different from the value of the first direction field, and the value of the second TID field is different from the value of the first TID field.

With reference to the sixth aspect, in some implementations of the sixth aspect, the transceiver unit is further configured to: receive a first SCS response frame, the first SCS response frame is used to respond to the first SCS request frame, and the first SCS response frame is used for To indicate that the first SCS stream is accepted; sending a second SCS request frame, the second SCS request frame includes a second QoS feature element, the second QoS feature element includes a second TID field and a second direction field, and the second TID field is used for Indicates the service identifier of the second SCS flow, the second direction field is used to indicate the transmission direction of the second SCS flow, and the second direction field and the second TID are used to identify the second SCS flow.

With reference to the sixth aspect, in some implementation manners of the sixth aspect, the first QoS feature element includes a first user priority field, the first user priority field is a reserved field, and the first SCS request frame further includes a first flow classification element, the first flow classification element is used to indicate the identification mode of the first SCS flow, the first flow classification element includes a second user priority field, and the second user priority field is used to indicate the priority of the first SCS flow.

With reference to the sixth aspect, in some implementation manners of the sixth aspect, the first QoS feature element includes a first user priority field, and the first SCS request frame further includes a first flow classification element, and the first flow classification element is used for Indicates the identification method of the first SCS flow. The first flow classification element includes the second user priority field. The value of the first user priority field is the same as the value of the second user priority field. The second user priority field is used for Indicates the priority of the first SCS stream.

With reference to the sixth aspect, in some implementation manners of the sixth aspect, the first SCS request frame further includes a second flow classification element, the second flow classification element is used to indicate the identification mode of the first SCS flow, and the second The flow classification element includes a third user priority field, and the value of the third user priority field is the same as the value of the second user priority field.

With reference to the sixth aspect, in some implementations of the sixth aspect, the first SCS request frame further includes a service identifier and link TID-To-Link mapping element, and the TID-To-Link mapping element is used to indicate the service identifier Mapping rules with links.

With reference to the sixth aspect, in some implementations of the sixth aspect, the TID-To-Link mapping element includes a first field and a link mapping existence bitmap, and the first field is used to indicate the link mapping existence bit The length of the graph.

With reference to the sixth aspect, in some implementations of the sixth aspect, the first SCS request frame further includes an enhanced distributed channel access parameter set element, and the enhanced distributed channel access parameter set element is used to indicate the channel of the station access parameters.

With reference to the sixth aspect, in some implementations of the sixth aspect, the transceiver unit is further configured to: receive a first SCS response frame, the first SCS response frame is used to respond to the first SCS request frame, and the first SCS response frame is used for In order to indicate that the first SCS stream is accepted; the processing unit is also configured to: use the channel access parameters indicated by the element of the enhanced distributed channel access parameter set to perform channel access.

With reference to the sixth aspect, in some implementation manners of the sixth aspect, the processing unit is specifically configured to: use the enhanced distributed channel when at least one of the SCS flows requested to be created by the first SCS request frame has data to be transmitted. The channel access parameter indicated by the access parameter set element is used for channel access; or, when the SCS flow mapped to the first access type AC of the station in the SCS flow requested by the first SCS request frame has data to be transmitted, The first AC of the device performs channel access using the channel access parameters indicated by the element of the enhanced distributed channel access parameter set.

With reference to the sixth aspect, in some implementation manners of the sixth aspect, the transceiver unit is further configured to: send a first frame, the first frame includes a measurement report element, and the measurement report element includes a second field, and the second field uses In order to indicate the number of the first media access control service data unit (media access control service data unit, MSDU), the first MSDU is the MSDU successfully transmitted within the range of the delay upper limit indicated in the first QoS characteristic element.

With reference to the sixth aspect, in some implementation manners of the sixth aspect, the measurement report element further includes a third field, and the third field is used to indicate whether the second field exists.

In a seventh aspect, a communication device is provided, and the device may be an access point, or may also be a chip or a circuit configured in the access point, which is not limited in the present application.

The device includes: a transceiver unit, configured to receive a first SCS request frame from a station, where the first SCS request frame is used to request the creation of a first SCS flow; The first SCS response frame of the frame, the first SCS response frame is used to indicate whether the first SCS flow is accepted, the first SCS response frame includes the third QoS characteristic element, the third QoS characteristic element includes the third TID field, the third TID The field is used to indicate the service identifier of the first SCS flow, and the third QoS characteristic element is used to indicate the QoS parameter of the first SCS flow.

According to the solution of the embodiment of the present application, the third TID field is used as the service identifier of the first SCS flow, and the first SCS is an SCS flow with parameterized QoS, so that the SCS flow with parameterized QoS and the non-parameterized SCS flow can be distinguished SCS flow for QoS.

With reference to the seventh aspect, in some implementation manners of the seventh aspect, the value of the third TID field is any one of 8 to 15.

With reference to the seventh aspect, in some implementation manners of the seventh aspect, the third QoS feature element further includes a third direction field, the third direction field is used to indicate the transmission direction of the first SCS flow, the third direction field and the first Three TIDs are used to identify the first SCS flow.

With reference to the seventh aspect, in some implementation manners of the seventh aspect, the first SCS response frame is used to indicate that the first SCS stream is accepted.

With reference to the seventh aspect, in some implementation manners of the seventh aspect, the transceiver unit is further configured to: receive a second SCS request frame, where the second SCS request frame includes a second QoS characteristic element, and the second QoS characteristic element includes a first Two TID fields and a second direction field, the second TID field is used to indicate the service identifier of the second SCS flow, the second direction field is used to indicate the transmission direction of the second SCS flow, and the second direction field and the second TID are used to identify The second SCS flow, the second SCS request frame is used to request to create the second SCS flow, wherein, the value of the second direction field is different from that of the first direction field; or, the value of the second TID field is different from that of the first TID field or, the value of the second direction field is different from that of the first direction field, and the value of the second TID field is different from that of the first TID field.

With reference to the seventh aspect, in some implementations of the seventh aspect, the first SCS response frame is used to indicate that the first SCS flow is accepted, and the transceiver unit is also used to: receive the second SCS request frame, the second SCS request The frame includes a second QoS feature element, the second QoS feature element includes a second TID field and a second direction field, the second TID field is used to indicate the service identifier of the second SCS flow, and the second direction field is used to indicate the second SCS flow The transmission direction of the transmission direction, the second direction field and the second TID are used to identify the second SCS flow, and the second SCS request frame is used to request to create the second SCS flow; the device also includes: a processing unit, for if the second direction field The value is the same as the value of the first direction field, and the value of the second TID field is the same as the value of the first TID field, then the locally stored information of the first SCS flow is deleted.

With reference to the seventh aspect, in some implementations of the seventh aspect, the third QoS feature element includes a fourth user priority field, the fourth user priority field is a reserved field, and the first SCS response frame further includes a third stream A classification element, the third flow classification element is used to indicate the identification mode of the first SCS flow, the third flow classification element includes a fifth user priority field, and the fifth user priority field is used to indicate the priority of the first SCS flow.

With reference to the seventh aspect, in some implementations of the seventh aspect, the third QoS feature element includes a fourth user priority field, and the first SCS response frame further includes a third flow classification element, and the third flow classification element is used for Indicates the identification method of the first SCS flow, the third flow classification element includes the fifth user priority field, the value of the fifth user priority field is the same as the value of the fourth user priority field, and the fifth priority field is used for Indicates the priority of the first SCS flow.

With reference to the seventh aspect, in some implementations of the seventh aspect, the first SCS response frame further includes a fourth flow classification element, the fourth flow classification element is used to indicate the identification mode of the first SCS flow, and the fourth flow classification The element includes a sixth user priority field, and the value of the sixth user priority field is the same as the value of the fifth user priority field.

With reference to the seventh aspect, in some implementations of the seventh aspect, the first SCS response frame further includes a service identifier and link TID-To-Link mapping element, and the TID-To-Link mapping element is used to indicate the service identifier and link TID-To-Link mapping element. Link mapping rules.

With reference to the seventh aspect, in some implementations of the seventh aspect, the TID-To-Link mapping element includes a first field and a link mapping existence bitmap, and the first field is used to indicate the link mapping existence bitmap length.

With reference to the seventh aspect, in some implementation manners of the seventh aspect, the first SCS response frame further includes an enhanced distributed channel access parameter set element, and the enhanced distributed channel access parameter set element is used to indicate the channel access parameter set element of the station. input parameters.

In an eighth aspect, a communication device is provided, including a processor. The processor is coupled with the memory, and can be used to execute instructions in the memory, so as to implement the method in the above-mentioned first aspect and any possible implementation of the first aspect, or the second aspect and any possible implementation of the second aspect The method in the manner, or the method in the third aspect and any possible implementation manner of the third aspect, or the method in the fourth aspect and any possible implementation manner of the fourth aspect, or the fifth aspect and the fifth aspect A method in any possible implementation of an aspect. Optionally, the device further includes a memory. Optionally, the device further includes a communication interface, and the processor is coupled to the communication interface.

In one implementation, the device is an access point. When the device is an access point, the communication interface may be a transceiver, or an input/output interface.

In another implementation manner, the device is a chip configured in an access point. When the device is a chip configured in an access point, the communication interface may be an input/output interface.

In one implementation, the device is a station. When the device is a station, the communication interface may be a transceiver, or an input/output interface.

In another implementation manner, the device is a chip configured in a site. When the device is a chip configured in a site, the communication interface may be an input/output interface.

In another implementation, the device is a chip or a system-on-a-chip.

Optionally, the transceiver may be a transceiver circuit. Optionally, the input/output interface may be an input/output circuit.

In a ninth aspect, there is provided a computer-readable storage medium, on which a computer program is stored, and when the computer program is executed by a device, the device realizes the first aspect and any possible implementation manner of the first aspect. method, or the method in the second aspect and any possible implementation of the second aspect, or the method in the third aspect and any possible implementation of the third aspect, or any of the fourth aspect and the fourth aspect A method in a possible implementation manner, or a method in the fifth aspect or any of the possible implementation manners of the fifth aspect.

According to the tenth aspect, there is provided a computer program product including instructions, when the instructions are executed by a computer, the device implements the method in the first aspect and any possible implementation manner of the first aspect, or the second aspect and the second aspect The method in any possible implementation manner of the third aspect, or the method in any possible implementation manner of the third aspect and the third aspect, or the method in the fourth aspect and any possible implementation manner of the fourth aspect, or The fifth aspect and the method in any possible implementation manner of the fifth aspect.

In an eleventh aspect, a communication system is provided, including the aforementioned access point and station.

Description of drawings

Fig. 1 is a schematic diagram of a communication system applicable to the embodiment of the present application.

FIG. 2 shows a connection mode between a multi-link AP and a multi-link STA.

Fig. 3 is a schematic diagram of a frame format of an SCS request frame provided by an embodiment of the present application.

Fig. 4 is a schematic diagram of a format of the SCS descriptor element provided by the embodiment of the present application.

Fig. 5 is a schematic diagram of a frame format of an SCS response frame provided by an embodiment of the present application.

FIG. 6 is a schematic flowchart of a method for communicating a traffic classification service provided by an embodiment of the present application.

FIG. 7 is a schematic diagram of two formats of TID-To-Link mapping elements provided by the embodiment of the present application.

Fig. 8 is a schematic diagram of the format of the EDCA parameter set elements provided by the embodiment of the present application.

Fig. 9 is a schematic diagram of the format of the first measurement report element provided by the embodiment of the present application.

Fig. 10 is a schematic block diagram of a communication device provided by an embodiment of the present application.

Fig. 11 is another schematic block diagram of a communication device provided by an embodiment of the present application.

Detailed ways

The technical solution in this application will be described below with reference to the accompanying drawings.

The technical solutions of the embodiments of the present application can be applied to various communication systems, such as: WLAN communication systems, wireless fidelity (Wireless Fidelity, Wi-Fi) systems, global system of mobile communication (GSM) systems, code division Multiple access (code division multiple access, CDMA) system, wideband code division multiple access (wideband code division multiple access, WCDMA) system, general packet radio service (general packet radio service, GPRS), long term evolution (long term evolution, LTE) system, LTE frequency division duplex (FDD) system, LTE time division duplex (TDD), universal mobile telecommunications system (UMTS), global interconnection microwave access (worldwide interoperability for Microwave access, WiMAX) communication system, fifth generation (5th generation, 5G) system, new radio (new radio, NR) or future communication system, etc.

Exemplarily, the embodiments of the present application can be applied to a system supporting the IEEE 802.11be standard or an extremely high throughput (extremely high throughput, EHT) standard.

The following is an exemplary description, taking a WLAN system as an example to describe the application scenario of the embodiment of the present application and the method of the embodiment of the present application.

Specifically, the embodiments of the present application can be applied to WLAN, and the embodiments of the present application can be applied to any protocol in the IEEE 802.11 series protocols currently adopted by the WLAN. The WLAN may include one or more basic service sets (basic service set, BSS), and the network nodes of the BSS include an access point (access point, AP) and a station (station, STA). Each BSS may contain an AP and multiple STAs associated with the AP.

In the embodiment of the present application, the sending end and/or the receiving end may be a STA in a WLAN, and the STA may also be called a system, a user unit, an access terminal, a mobile station, a mobile station, a remote station, a remote terminal, a mobile device, a user Terminal, terminal, wireless communication device, user agent, user device or user equipment (user equipment, UE). The STA can be a cellular phone, a cordless phone, a session initiation protocol (session initiation protocol, SIP) phone, a wireless local loop (wireless local loop, WLL) station, a personal digital assistant (personal digital assistant, PDA), a wireless LAN ( Handheld devices, wearable devices, computing devices, or other processing devices connected to wireless modems such as Wi-Fi communication capabilities. Optionally, the STA is a WLAN terminal device supporting 802.11 series standards.

In addition, the sending end and/or receiving end in this embodiment of the present application may be an AP in a WLAN, and the AP is also called a wireless access point or a hotspot. AP is the access point for mobile users to enter the wired network. It is mainly deployed in homes, buildings, and campuses, and can also be deployed outdoors. The AP is equivalent to a bridge connecting the wired network and the wireless network. Its main function is to connect various wireless network clients together, and then connect the wireless network to the Ethernet. The AP can be used to communicate with the access terminal through the wireless local area network, and transmit the data of the access terminal to the network side, or transmit the data from the network side to the access terminal. Specifically, the AP may be a terminal device or a network device with a wireless fidelity (wireless fidelity, WiFi) chip. Optionally, the AP may be a device supporting multiple WLAN standards such as 802.11.

To facilitate understanding of the embodiment of the present application, firstly, the communication system shown in FIG. 1 is taken as an example to illustrate the communication system applicable to the embodiment of the present application. The scenario system shown in FIG. 1 may be a WLAN system. The WLAN system 100 in FIG. 1 may include one or more APs and one or more STAs. In FIG. AP112) and two STAs (STA121 and STA122 shown in FIG. 1) are taken as an example.

One or more STAs in the station device may communicate with one or more APs in the access point device after establishing an association relationship. For example, the AP 111 can communicate with the STA 121 after establishing an association relationship. The AP 112 can communicate with the STA 122 after establishing an association relationship.

Exemplarily, the present application can also be used in a multi-link scenario, that is, the sending end and/or receiving end in the embodiment of the present application can also be a multi-link device (multi-link device, MLD), a multi-link device working The frequency bands are all or part of 1GHz, 2.4GHz, 5GHz, 6GHz and high-frequency 60GHz. MLD includes multi-link access point (multi-link access point) and multi-link STA (multi-link station). Multi-link AP can be called An access point multi-link device, a multi-link STA may be called a station multi-link device or a non-access point multi-link device.

FIG. 2 shows a connection mode between a multi-link AP and a multi-link STA.

As shown in Figure 2, a multi-link AP may include physical layer (physical layer, PHY) processing circuits (PHY#1, PHY#2, and PHY#n shown in Figure 2) and media access control (media access control) , MAC) layer processing circuit, the physical layer processing circuit can be used to process the physical layer signal, and the MAC layer processing circuit can be used to process the MAC layer signal. Further, in the MAC layer, it can also be divided into a high MAC (high-MAC) layer (high MAC as shown in Figure 2) and multiple low MAC (low-MAC) layers (low MAC as shown in Figure 2). #1, low MAC #2 and low MAC #n), the high MAC layer is connected to multiple low MAC layers respectively, that is, the high MAC layer is shared by multiple links. The upper MAC layer mainly completes the allocation of the sequence number (SN) and packet number (PN) of the MAC service data unit (MAC service data unit, MSDU), as well as encryption and decryption operations. Each low MAC layer mainly completes the assembly of the MAC protocol data unit (MAC protocol data unit, MPDU) of the respective link, channel access, packet transmission and reception confirmation and other operations. In Figure 2, the PHY#1 layer, low MAC#1 layer and high MAC layer in a multi-link AP can be regarded as AP#1, and the PHY#2 layer, low MAC#2 layer and high MAC layer can be regarded as AP #2, ..., the PHY #n layer, the lower MAC #n layer and the higher MAC layer can be regarded as AP #n, that is, it can be understood that a multi-link AP includes N AP entities. In a multi-link STA, the situation is similar, that is, the high MAC layer in a multi-link STA is also shared by multiple links, and the PHY#1 layer, the low MAC#1 layer and the high MAC layer are regarded as STA#1, The PHY#2 layer, the low MAC#2 layer and the high MAC layer are regarded as STA#2, ..., the PHY#n layer, the low MAC#n layer and the high MAC layer are regarded as STA#n, that is, it can be understood as multiple The link STA includes N STA entities.

As shown in Figure 2, PHY#1 of AP#1 in the multilink AP is connected to PHY#1 of STA#1 in the multilink STA, and AP#1 in the multilink AP and PHY#1 in the multilink STA STA#1 realizes communication through a link (link#1 shown in Figure 2); PHY#2 of AP#2 in the multi-link AP is connected with PHY#2 of STA#2 in the multi-link STA , AP#2 in the multi-link AP and STA#2 in the multi-link STA realize communication through a link (link #2 shown in Figure 2); the PHY# of AP#n in the multi-link AP n is connected to the PHY#n of STA#n in the multi-link STA, AP#n in the multi-link AP and STA#n in the multi-link STA pass through a link (link #n shown in Figure 2 ) to achieve communication.

It should be noted that Figure 2 is only a simple schematic diagram, which does not constitute any limitation to the scope of protection of this application. For the internal structure of AP and STA, refer to the introduction of the existing technology or refer to the internal structure of AP and STA after the development of future technology. , which is not limited in this application and will not be repeated here.

Due to the increasing demand of users for communication service quality, the IEEE 802.11ax standard has been difficult to meet user needs in terms of large throughput, low jitter and low delay, so there is an urgent need to develop the next generation of IEEE technology, for example, the IEEE802.11be standard .

The IEEE 802.11 next-generation standard supports the stream classification service (SCS) mechanism. Specifically, STAs and associated APs can negotiate service quality (quality of service, QoS) parameters through SCS request frames and SCS response frames, further , the STA can transmit SCS data with QoS requirements with the associated AP.

Fig. 3 is a schematic diagram of a frame format of an SCS request frame provided by an embodiment of the present application. As shown in Figure 3, the SCS request (request) frame includes a category (category) field, a robust action (robust action) field, a dialogue token (dialog token) field and an SCS descriptor list (SCS descriptor list) field. The indicated meaning of each field is as follows:

1. The category field is used to indicate the category to which the action frame belongs;

2. The robust action field is used to indicate which frame in the category the frame is;

3. The dialogue token field is used to match the corresponding SCS request frame and SCS response frame;

4. The SCS descriptor list field includes one or more SCS descriptor elements, and each SCS descriptor element is used to indicate related information of an SCS stream.

As an example, FIG. 4 is a schematic diagram of the format of the SCS descriptor element provided by the embodiment of the present application. As shown in (a) of FIG. 4 , the SCS descriptor element may include an element identifier (element ID) field, a length (length ) field, SCS identifier (SCSID) field and request type (request type) field, optionally, the SCS descriptor element can also include access category priority element (intra-access category priority element), traffic classification (traffic classification , TCLAS, or can also be called communication classification or business classification) element (TCLAS element), flow classification processing element (TCLAS processing element), service quality characteristic element (service of quality characteristics element) and other optional sub-elements (optional subelements). The indication of each byte or element is as follows:

1) The element identifier field is used to identify the SCS descriptor element.

2) The length field is used to indicate the length of the SCS descriptor element.

3) The SCSID field is 1 byte and is used to identify the SCS stream.

4) The request type is 1 byte, which is used to indicate the type requested by the SCS request frame. The value and indication function of the request type can be as shown in Table 1:

Table 1

request type的取值The value of request type		指示作用Indication
00	增加(add)，即增加/请求创建SCS流Add (add), that is, add/request to create an SCS stream
11	移除(remove)，即请求移除SCS流remove (remove), that is, request to remove the SCS stream
22	改变(change)，即请求修改SCS流Change (change), that is, request to modify the SCS stream

5) The specific format of the priority element within the access category is shown in Figure 4, including an element identifier (element ID) field, a length (length) field and an intra-access priority (intra-access priority) field. specifically:

5.1) The element identifier field is used to identify priority elements within the access category;

5.2) The length (length) field is used to indicate the length of the priority element in the access category;

5.3) The access priority field is 1 byte, including user priority (user priority) field, alternate queue (alternate queue) field, drop eligibility (drop Eligibility) field and reserved field, indicating the meaning of each field for:

a) 3 bits for the priority, used to indicate the priority of the user;

b) The standby queue is 1 bit, which is used to indicate whether to establish a new standby queue for the SCS flow;

c) The discard qualification is 1 bit, which is used to indicate whether the data packets of the SCS flow can be discarded when there are not enough resources.

6) The TCLAS element is used to indicate how to identify the SCS flow, and this element carries the criterion for judging the SCS flow. The TCLAS element may include an element identifier (element ID) field, a length (length) field, a user priority (user priority) field, and a frame classifier field.

Specifically, the element identifier field is used to identify the TCLAS element;

The length field is used to identify the TCLAS element;

The user priority (user priority) field is used to indicate the user priority. When multiple elements include the user priority field, the TCLAS element generally prevails.

7) The TCLAS processing element is used to indicate how to process multiple TCLAS elements when there are multiple TCLAS elements.

8) The QoS feature element is used to indicate information such as QoS parameters of the SCS flow.

If the SCS descriptor element carries a QoS feature element, the SCS stream corresponding to the SCS descriptor element can be called an SCS stream with parameterized QoS (SCS stream with parameterized QoS), if the SCS descriptor element does not carry a QoS feature element, and the SCS stream corresponding to the SCS descriptor element can be called a non-parameterized QoS SCS stream (SCS stream without parameterized QoS).

Among them, the QoS Characteristics element includes element identifier (element ID) field, length (length) field, extended element identifier (element ID extension) field, control information (control information) field, minimum service interval (minimum service interval) field, Maximum service interval (maximum service interval) field, minimum data rate (minimum data rate) field, delay upper limit (delay bound) field, maximum MSDU length (maximum MSDU size) field, service start time (service start time) field, Average data rate (mean data rate) field, burst size (burst size) field, MSDU lifetime (MSDU lifetime) field, MSDU delivery ratio (MSDU delivery ratio) field, MSDU count exponent (MSDU count exponent) field, media time (medium time) field, specifically:

8.1) The element identifier field and the extended element identifier field are used to identify the QoS feature element;

8.2) The length field is used to indicate the length of the QoS feature element;

8.3) A format of the control information field is shown in (b) of Figure 4, which includes a direction (direction) field, a traffic identifier (traffic identifier, TID) field, a user priority (user priority) field, whether other parameters The presence bitmap (presence bitmap of additional parameters) field, link identifier (link ID) and reserved (reserved) field.

a) The direction field is used to indicate the transmission direction of the SCS stream. Specifically, one indication method is: 00 means uplink; 10 means downlink; 01 means P2P (Peer-to-peer) direct link; 11 is a reserved value.

b) TID is used to identify the service type, and its value ranges from 0 to 7, and 8-15 are reserved values.

c) User priority, its value is 0 to 7, 0-7 respectively represent the user priority from low to high, and can be set to the same value as the TID field. Table 2 shows the correspondence between the value of user priority and the access category (AC) and service type.

It should be understood that the four different ACs provided by the standard 802.11 correspond to voice traffic (voice traffic, AC_VO), video traffic (video traffic, AC_VI), best effort traffic (best effort traffic, AC_BE) and background traffic (background traffic). , AC_BK).

Table 2

d) The bitmap of whether other parameters appear is used to indicate whether other parameters appear starting from the maximum MSDU length field.

e) The link identifier is used to indicate the link identifier corresponding to the direct link transmission. When the value of the direction field in the control information is not 1, this field is reserved and has no indication function.

8.4) The minimum service interval field is used to indicate the minimum interval between two consecutive service periods;

8.5) The maximum service interval field is used to indicate the maximum interval between two consecutive service periods;

8.6) The minimum data rate field is used to indicate the minimum data rate required by the described service flow;

8.7) The delay upper limit field is used to indicate the maximum delay allowed by the data packets of the described service flow;

8.8) The maximum MSDU length field is used to indicate the maximum MSDU length of the data packet of the described service flow;

8.9) The service start time field is used to indicate the start time of the first service period of the described service flow;

8.10) The average data rate field is used to indicate the average data rate required by the described service flow;

8.11) The burst size field is used to indicate the possible maximum peak traffic volume of the described traffic flow;

8.12) The MSDU lifetime field is used to indicate the lifetime of the data packet of the described service flow;

8.13) The MSDU delivery rate field is used to indicate the required MSDU delivery rate under the given delay upper limit requirement;

8.14) The MSDU quantity index field is used to indicate the number of reference MSDUs used to calculate the MSDU delivery rate;

8.15) The media time field is used to indicate the media time requested by the described service flow.

After receiving the SCS request frame, the AP will reply with an SCS response frame (response), which is used to respond to the request frame and indicate whether the SCS stream requested by the request frame is received.

As an example, FIG. 5 is a schematic diagram of a frame format of the SCS response frame provided by the embodiment of the present application.

As shown in Figure 5, the SCS response frame includes a category (category) field, a robust action (robust action) field, a dialog token (dialog token) field, a quantity (count) field, an SCS state list field, and an SCS descriptor list (SCS descriptor list) field. The indication function of each field, byte or element is similar to the indication function of the SCS request frame shown in Figure 3, in addition, the dialog token field in the SCS response frame is the same The content remains the same. The quantity field is used to indicate the number of SCS status groups in the SCS status list. The SCS status list field includes one or more SCS status groups. Each SCS status group includes SCSID and status code (status code), and SCSID is used to identify the SCS stream, the status code is used to indicate whether the SCS stream corresponding to the requested SCSID is accepted, if the status code indicates that a certain SCS stream is accepted (accept), the field in the QoS feature element indicates the parameter information to be adopted by the SCS stream, That is, when the access point agrees to the request of the station, the station needs to operate according to the parameter information carried in the SCS response frame; The station can re-initiate the SCS request according to the parameter information suggested by the access point.

It should be understood that FIG. 5 is only illustrated by taking an example in which the SCS state list field includes one SCS state group, which is not limited in the present application.

It should also be understood that the meaning of each specific field in FIG. 3 to FIG. 5 can refer to the standard definition, and details are not repeated here.

802.11 data transmission is based on TID, including SN allocation and block ack (block ack, BA) establishment, and in the current SCS mechanism, multiple SCS streams are allowed to be mapped to the same TID. In this case, there is The SCS flow with parameterized QoS and the SCS flow with non-parameterized QoS may be mapped to the same TID, making the QoS parameter requirement of the SCS flow reported by the station meaningless. For example, a station requests to create SCS flow #0 with QoS parameter 1, which is mapped to TID6, followed by a request to create SCS flow #1 without QoS parameter, which is also mapped to TID6. Since both SCS flow #0 and SCS flow #1 are mapped to TID 6, which is the voice service, the access point will not be able to distinguish the data packets of SCS flow #1 and SCS flow #2, and cannot preferentially transmit SCS flow #1 or SCS Packets for flow #2.

In view of this, the present application provides a communication method for flow classification services, which can distinguish between SCS flows with parameterized QoS and non-parameterized QoS SCS flows, and further, can improve the data of a specific SCS flow with parameterized QoS. Transport QoS.

The technical solutions provided by the present application will be described in detail below in conjunction with the accompanying drawings. The embodiments of the present application may be applied in multiple different scenarios, including the scenarios shown in FIG. 1 and FIG. 2 , but are not limited to the scenarios.

FIG. 6 is a schematic flowchart of a method 600 for communication of a traffic classification service provided by an embodiment of the present application.

S610. The station determines a first quality of service QoS feature element, where the first QoS feature element includes a first service identifier TID, where the first TID field is used to indicate the service identifier of the first SCS flow, and the first QoS feature element is used for Indicates the QoS parameters of the first SCS flow.

The first TID field may also be referred to as the first traffic stream identifier (TSID) field, and the first TID field is used to indicate the service identifier of the first SCS flow, that is, the first TID may be used as the first SCS flow Business identity.

When the station needs to request to create the first SCS flow, the station can determine the first QoS characteristic element, and use the TID field in the first QoS characteristic element to indicate the service identifier of the first SCS flow.

Since the station determines the first QoS feature element and indicates the QoS parameter of the first SCS stream through the first QoS feature element, the first SCS stream can be called an SCS stream with parameterized QoS (SCS stream without parameterized QoS).

The QoS parameters of the first SCS flow include information about the parameters indicated by the first QoS feature element.

In this application, a station may be a non-multi-link station or a multi-link station.

S620, the station sends the first SCS request frame to the access point.

Correspondingly, the access point receives the first SCS request frame.

The first SCS request frame includes the first QoS feature element, and the first SCS request frame is used to request creation of the first SCS flow.

As an example, the frame format of the first SCS request frame may be as shown in FIG. 3 . The first SCS request frame may include an SCS descriptor list including a first SCS descriptor element, and the first QoS feature element may be located in the first SCS descriptor element. Specifically, the format of the first SCS descriptor element and the first QoS feature element may be as shown in FIG. 4 . And in this format, the service identifier of the first SCS flow is indicated by the second field in the control information field of the first QoS feature element, that is, TID.

Optionally, the request type field of the first SCS descriptor element may indicate add (add).

The first SCS request frame includes a QoS feature element, that is, the station can request to create an SCS flow with parameterized QoS, and further, the station and the AP can transmit data of the SCS flow with parameterized QoS.

S630, the access point sends the first SCS response frame to the station, and the station receives the first SCS response frame accordingly.

The first SCS response frame is used to respond to the first SCS request frame, and the first SCS response frame is used to indicate whether the first SCS flow is accepted.

The first SCS response frame includes a third QoS feature element, the third QoS feature element includes a third TID field, the third TID field is used to indicate the service identifier of the first SCS flow, and the third QoS feature element is used to indicate QoS parameters of the first SCS flow.

It should be understood that the QoS parameter indicated by the third QoS feature element is a response to the request of the first SCS flow, and the element format and indication content of the first QoS feature element and the third QoS feature element may be the same or different Yes, this application does not make a limitation. Here, the difference includes all differences and partial differences.

As an example, after receiving the first SCS request frame, the access point may determine whether to agree to create the first SCS flow according to the QoS parameter indicated by the first QoS characteristic element. If the creation is agreed, that is, the first SCS is accepted, the third The QoS characteristic element indicates the parameter information that the first SCS flow needs to adopt, that is, the station needs to set the parameters of data transmission according to the parameter information indicated by the third QoS characteristic element. In this case, the QoS parameter indicated by the third QoS characteristic element and The QoS parameters indicated by the first QoS feature element may be the same or different. If the creation is not agreed, ie the first SCS is rejected, the third QoS characteristic element indicates the proposed QoS parameters for the first SCS flow. Further, the station can use the parameter information suggested by the access point to re-initiate the SCS request. For example, when the first SCS request frame includes incorrect TID and UP values, the AP can reject the creation request of the first SCS flow through the first SCS response frame, and suggest using the TID and UP information in the first SCS response frame. In this case, the QoS parameter indicated by the third QoS characteristic element is different from the QoS parameter indicated by the first QoS characteristic element.

The access point may use the third TID field in the third QoS feature element to indicate the service identifier of the first SCS flow, that is, the access point may use the third TID as the service identifier of the first SCS flow.

In this application, the access point may be a non-multilink access point or a multilink access point.

In addition, as an example, the frame format of the first SCS response frame may be as shown in FIG. 5 . Among them, the status code indicates accept (accept), which means that the creation of the first SCS is agreed, that is, the first SCS flow is accepted, and the status code indicates reject (reject with suggested changes), which means that the creation of the first SCS flow is refused and suggestions are given parameter, that the first SCS flow is rejected, or that the first SCS flow is not accepted.

The first SCS response frame may include an SCS descriptor list, and the SCS descriptor list includes a third SCS descriptor element, and the third QoS characteristic element is carried in the third SCS descriptor element. As an example, the format of the third SCS descriptor element and the third QoS feature element may be as shown in FIG. 4 . And in this format, the second field in the control information field of the third QoS feature element, ie TID, indicates the service identifier of the first SCS flow.

It should be understood that the first SCS request frame is a management frame, and when the access point successfully receives the first SCS request frame, it first replies with an acknowledgment (acknowledge, ACK), and then re-initiates channel access to send the first SCS response frame. The same is true for the first SCS response frame, that is, when the station successfully receives the first SCS response frame, it also needs to reply ACK first.

Based on the above solution, this application can use the first TID field or the third TID field as the service identifier of the first SCS flow, and the first SCS is an SCS flow with parameterized QoS, so that SCS flows with parameterized QoS can be distinguished and non-parametric QoS SCS flows.

Optionally, the method 600 further includes: the access point determining the above-mentioned third QoS feature element.

In an implementation manner, the value of the first TID field is any one of 8 to 15.

Similarly, the value of the third TID field is any one of 8-15.

Optionally, the value of the field of the first TID and the value of the third TID may be the same. For example, if the first SCS flow is accepted, and the TID in the first QoS characteristic element is the correct service identifier of the first SCS flow, then the access point uses the first TID as the service identifier of the first SCS flow, and the third TID and The first TID is the same.

Optionally, the value of the field of the first TID may also be different from the value of the third TID. For example, when the first SCS request frame includes incorrect TID and UP values, the AP may reject the creation request of the first SCS flow through the first SCS response frame, and indicate that the third TID is a suggested TID value.

In the embodiment of the present application, the value range of the TID may be set to 8 to 15, that is, the value of 8 to 15 is used as the service identifier of the first SCS flow.

Based on the above scheme, set the TID of the SCS flow with parameterized QoS to 8-15, correspondingly, the TID of the SCS flow without parameterized QoS is still 0-7, which can avoid indicating the service identifier of the SCS flow with parameterized QoS The value of is the same as the identifier of the service type, so that the SCS flow with parameterized QoS and the SCS flow without parameterized QoS can be distinguished.

In addition, since the SCS flow with parameterized QoS can be identified through the TID field and the direction field, and the sender can know the direction of the data to be transmitted during data transmission, the TID field in the data frame header and the data transmission direction It is possible to distinguish data of different SCS flows with parameterized QoS.

In an implementation manner, the first QoS feature element includes a first direction field, where the first direction field is used to indicate a transmission direction of the first SCS flow, and the first direction field and the first TID field are used to identify the first SCS flow.

Optionally, the transmission direction of the first SCS stream may be uplink, downlink, or direct connection.

As an example, the first direction field may be located in the first field in the control information field of the first QoS feature element, as shown in FIG. 4 .

The first direction field and the first TID field are used to identify the first SCS flow. It can be understood that the first direction field and the first TID field serve as joint fields and have a corresponding relationship with the first SCSID. The first TID and the first direction field may be referred to as a first joint field, that is, the first joint field is used to indicate the first SCS flow. (When there is one QoS Characteristics element within the SCS Descriptor element, then the SCS stream is also identified by the TID(8-15) and Direction fields within the QoS Characteristics element besides the SCSID.)

On the other hand, in this embodiment of the present application, the first SCS flow is jointly identified by the first direction field and the first TID field, so that when the data transmission of the first SCS flow is performed, the TID field and the data transmission direction of the data frame header can be To distinguish the data of different SCS streams.

Similarly, the third QoS feature element includes a third direction field, the third direction field is used to indicate the transmission direction of the first SCS flow, and the third direction field and the third TID field are used to identify the first SCS flow. The third direction field may be located in the first field in the control information field of the third QoS feature element, as shown in FIG. 4 .

In one implementation, the method 600 further includes: if the first SCS response frame is used to indicate that the first SCS flow is accepted, the station sends a second SCS request frame, and the second SCS request frame includes the second QoS feature element, the second QoS feature element includes a second TID field and a second direction field, the second TID field is used to indicate the service identifier of the second SCS flow, and the second direction field is used to indicate the transmission direction of the second SCS flow , the second direction field and the second TID are used to identify the second SCS flow, and the second SCS request frame is used to request to create the second SCS flow, wherein the value of the second direction field is the same as that of the first The direction field is different; or, the value of the second TID field is different from the value of the first TID field; or, the value of the second direction field is different from the value of the first direction field, and the value of the second The value of the second TID field is different from the value of the first TID field.

Similarly, the second TID and the second direction field may be referred to as a second joint field, that is, the second joint field is used to indicate the second SCS flow.

Specifically, before sending the second SCS, the station may first determine whether the first SCS flow is accepted. If the first SCS flow is accepted, that is, the access point agrees to create the first SCS flow, the access point locally saves the first SCS flow. information about the first SCS stream. The following procedure may be that, when the station sends the second SCS request frame, it may set the second joint field to be different from the first joint field, specifically, the value of the second direction field is different from that of the first direction field; Or, the value of the second TID field is different from the value of the first TID field; or, the value of the second direction field is different from the value of the first direction field, and the value of the second TID field is different from that of the first TID Fields have different values. In other words, when the station requests to create the second SCS flow, it should make the combination identification field of the second SCS flow different from the combination identification field of the first SCS flow, so that different SCS flows can be distinguished.

Optionally, the method further includes: the station determines whether the value of the second TID in the second SCS request frame is the same as the value of the first TID, whether the value of the second direction field is the same as the value of the first direction field same.

Further, if the value of the second direction field is different from the value of the first direction field, and/or the value of the second TID field is different from the value of the first TID field, the station sends the second SCS request frame.

Further, if the value of the second direction field is the same as that of the first direction field, and the value of the second TID field is the same as that of the first TID field, the station does not send the second SCS request frame. Or, the station first sends a third SCS request frame, where the third SCS request frame is used to remove the first SCS flow. If the response frame of the response and the third SCS request frame is received, it indicates that the removal of the first SCS is successful, and then the second SCS request frame is sent.

Optionally, the request type field in the third SCS request frame may indicate remove.

In this way, if the first SCS flow is accepted, the TID field and the direction field used to identify the second SCS flow will be different from those of the first SCS flow, thereby ensuring the uniqueness of the identifier of the SCS flow with parameterized QoS sex.

In an implementation manner, the first SCS response frame is used to indicate that the first SCS flow is accepted, and the method 600 further includes:

The station sends a second SCS request frame, the second SCS request frame includes a second QoS feature element, the second QoS feature element includes a second TID field and a second direction field, and the second TID field is used to indicate the second SCS flow The second direction field is used to indicate the transmission direction of the second SCS flow, the second direction field and the second TID are used to identify the second SCS flow, and the second SCS request frame is used to request to create the The second SCS stream; if the value of the second direction field is the same as the value of the first direction field, and the value of the second TID field is the same as the value of the first TID field, the access point deletes the local stored information of the first SCS stream.

Specifically, if the first SCS flow is accepted, that is, the access point agrees to create the first SCS flow, and thus the access point locally saves relevant information of the first SCS flow. The next process may be: the station sends the second SCS request frame to the access point, and the access point may determine whether the second association field is the same as the first association field after receiving the second SCS request frame, if the first association field field is the same as the second joint field, then the locally stored information of the first SCS flow is deleted, that is, the information of the previously established first SCS flow will be removed. Further, the station may send a second SCS response frame for responding to the second SCS request frame. If the value of the second direction field is different from the value of the first direction field; or, the value of the second TID field is different from the value of the first TID field; or, the value of the second direction field is the same as The value of the first direction field is different, and the value of the second TID field is different from the value of the first TID field, then the first SCS flow that does not need to be deleted before the access point sends the second SCS response frame information.

As an example, deleting the relevant information of the first SCS flow includes deleting the locally stored QoS information of the first SCS flow, the identification method of the first SCS flow, the identification information of the first SCS flow, etc., wherein the first SCS flow The identification mode is the information indicated by the TCLAS element.

Optionally, the method further includes: the access point determines whether the value of the second TID in the second SCS request frame is the same as the value of the first TID, and the value of the second direction field is the same as that of the first direction field. Are the values the same.

In this way, if the first SCS flow is accepted, and the TID field and direction field used to identify the second SCS flow are the same as those of the first SCS flow, the access point can remove the information of the first SCS flow, thereby The uniqueness of the identification of the SCS flow with QoS parameterized QoS can be guaranteed.

In an implementation manner, the first QoS feature element includes a first user priority field, and the first user priority field is a reserved field, and the first SCS request frame further includes a first flow classification element, and the first flow classification element is used to indicate that the first An identification method of the SCS flow, the first flow classification element includes a second user priority field, and the second user priority field is used to indicate the priority of the first SCS flow.

In this application, the first SCS request frame may also include a first flow classification element (TCLAS element) in addition to the first QoS feature element, and the first flow classification element is used to indicate the identification method of the first SCS flow. As an example, the identification method The first SCS flow may be identified according to Internet protocol (Internet protocol, IP) address information in the data packet.

The first QoS feature element includes a user priority field, which is called the first user priority field, and the first flow classification element also includes a user priority field, which may be called the second user priority field. A possible implementation manner is to set the first user priority field as a reserved (reserved) field, and use the second user priority field to indicate the priority of the first SCS flow.

Wherein, the reserved field can also be called a reserved field, and the first user priority field is set as a reserved field, which can be understood as, the first user priority field is empty, or this field is ignored, or this field has no indication function, or this field is not used to indicate the priority of the first SCS flow.

As an example, the first user priority field may be located in the third field in the control information field of the third QoS feature element, and the first flow classification element may also be an element carried in the first SCS descriptor element. The priority field may be located in the third field in the system information field of the first flow classification element, as shown in FIG. 4 .

In this way, it is possible to avoid different values of the user priority fields in the QoS feature element and the flow classification element, which may cause parsing errors at the receiving end.

In one implementation, the first QoS feature element includes a first user priority field, and the first SCS request frame further includes a first flow classification element, where the first flow classification element is used to indicate the identification method of the first SCS flow, and the first flow classification The element includes a second user priority field, the value of the first user priority field is the same as the value of the second user priority field, and the second user priority field is used to indicate the priority of the first SCS flow.

In this application, in addition to the first QoS feature element, the first SCS request frame may also include a first flow classification element, and the first flow classification element is used to indicate the identification method of the first SCS flow. Specifically, the identification method may be

The first QoS feature element includes a user priority field, which is called the first user priority field, and the first flow classification element also includes a user priority field, which may be called the second user priority field. The values of the first user priority field and the second priority field may be set to the same value, that is, the values of the first user priority field and the second priority field both indicate the priority of the first SCS flow.

As an example, the length of the second priority field may be 1 byte, and may take 256 values, and its values and indication functions may be as shown in Table 3.

table 3

用户优先级user priority	指示含义Indicative meaning
0-70-7	MSDU的用户优先级值User priority value of MSDU
88	MPDU的AC值为AC_VOThe AC value of MPDU is AC_VO
99	MPDU的AC值为AC_VIThe AC value of MPDU is AC_VI
1010	MPDU的AC值为AC_BEThe AC value of the MPDU is AC_BE
1111	MPDU的AC值为AC_BKThe AC value of MPDU is AC_BK
12至25412 to 254	保留(reserved)Reserved
255255	用户优先级字段不用于比较User priority field is not used for comparison

In this case, the protocol may define that the second user priority is only 0-7, and set the values of the first user priority field and the second priority field to the same value.

In an implementation manner, the first SCS request frame further includes a second flow classification element, the second flow classification element is used to indicate the identification mode of the first SCS flow, the second flow classification element includes a third user priority field, and the second flow classification element includes a third user priority field. The value of the third user priority field is the same as that of the second user priority field.

The first SCS request frame may include a plurality of flow classification elements, that is, in addition to the first flow classification element, it may also include a second flow classification element, and the second flow classification element is also used to indicate the identification mode of the first SCS flow. The second flow classification element also includes a user priority field, which is called the third user priority. In this case, the standard can define that the value of the third user priority field is the same as that of the second user priority field. Thus either the third user priority field or the second user priority field may indicate user priority. In this way, different values of user priority fields in multiple flow classification elements can be avoided, which may cause parsing errors at the receiving end.

Optionally, the second flow classification element may also be an element located in the first SCS descriptor element.

It should be understood that when there are multiple flow classification elements indicating the identification manner of the first SCS flow in the first request frame, the flow classification processing element may indicate the processing manner of the plurality of flow classification elements. For details, please refer to the definition of the standard.

Similarly, the third QoS feature element includes a fourth user priority field, and the fourth user priority field is a reserved field, and the first SCS response frame further includes a third flow classification element, and the third flow classification element is used to indicate that the first SCS In the flow identification manner, the third flow classification element includes a fifth user priority field, and the fifth user priority field is used to indicate the priority of the first SCS. Alternatively, the third QoS feature element includes a fourth user priority field, the first SCS response frame further includes a third flow classification element, the third flow classification element is used to indicate the identification mode of the first SCS flow, and the third flow classification element includes The fifth user priority field, the value of the fifth user priority field is the same as the value of the fourth user priority field, and the fifth priority field is used to indicate the priority of the first SCS flow.

Optionally, the first SCS response frame further includes a fourth flow classification element, the fourth flow classification element is used to indicate the identification mode of the first SCS flow, the fourth flow classification element includes a sixth user priority field, and the sixth user priority The value of the level field is the same as the value of the fifth user priority field.

Optionally, the priority of the first SCS flow indicated in the first SC request frame may be the same as or different from the priority of the first SCS flow indicated in the first SCS response frame. For example, if the access point determines that the priority of the first SCS flow indicated in the first SCS request frame is not appropriate, it may indicate an appropriate priority or a suggested priority in the first SCS response frame.

In an implementation manner, the first SCS request frame may further include a service identifier-to-link TID-To-Link mapping element, where the TID-To-Link mapping element is used to indicate a mapping rule between a service identifier and a link.

In this application, the TID and link mapping element can be carried in the first SCS request frame, so that when the station requests to create the first SCS flow, it can also negotiate the TID-To-Link mapping rule with the access point.

Optionally, the TID-To-Link mapping element may include a first field and a link mapping presence bitmap, where the first field is used to indicate the length of the link mapping presence bitmap.

As an example, FIG. 7 is a schematic diagram of two formats of the TID-To-Link mapping element provided by the embodiment of the present application. As shown in (a) of FIG. 7, the element includes an element identifier field (element ID) field, a length ( length) field, extended element identifier (element ID extension) field, TID and link mapping control (TID-To-Link mapping control) field, etc. specifically:

1) The element identifier field and the extended element identifier field are used to identify the TID-To-Link mapping element;

2) The length field is used to indicate the length of the TID-To-Link mapping element;

3) The TID and link mapping control field includes a direction field, a default link mapping (link mapping presence indicator) field, a first field, a link mapping presence indicator field and a reserved field. The indication meaning of each field is as follows:

a) The direction field is 2 bits, which is used to indicate the direction of data transmission. When it is set to 0, it means uplink; when it is set to 1, it means downlink; 2 and 3 are reserved values.

b) The default link mapping field is 1 bit, which is used to indicate whether all TIDs are mapped to all links.

When the value of this field is 1, it means that all TIDs are mapped to all links.

c) The first field may be 1 bit, and is used to indicate the length of the link mapping occurrence indication field, and the first field may also be referred to as a first length field. For example, if the value of the first field is 0, the length of the link map presence indication field is 1 byte, and if the value of the first field is 1, the length of the link map presence indication field is 2 bytes.

d) The link mapping occurrence indication field can also be called the link mapping occurrence bitmap field, and each bit indicates whether the link mapping of a TID (ie Link Mapping of TID n) appears, corresponding to 8 TIDs (n The value is any one from 0 to 7) or 16 TIDs (n is any one from 0 to 15). For example, when the value of the first field is 0, the link map presence indicator field is 8 bits, corresponding to 8 TIDs respectively; when the value of the first field is 1, the link map presence indicator field is 16 bits bits, corresponding to 16 TIDs respectively. When the value of the default link mapping field is 1, the link mapping presence indication field is reserved.

Further, as shown in (a) of Figure 7, when the link mapping of the link mapping occurrence indication field indicating TID n occurs, the TID-To-Link mapping element can also include the link mapping field of TID n, the TID The link mapping field of n is used to indicate the mapping rules between TID n and links, that is, on which links TID n can be transmitted.

(b) of FIG. 7 is another schematic diagram of the structure of the TID-To-Link mapping element. Unlike (a) of FIG. Link mapping of a TID (that is, Link Mapping of TID n, n can be any one of 0 to 15). When there are only 8 values for TID, the bits corresponding to TID 8 to TID 15 in the link mapping indication field can all take the value 0, indicating that the mapping from TID 8 to TID 15 does not exist. In this case, the first TID-To-Link mapping element may not include the first field.

It should be understood that the two formats of the TID-To-Link mapping element in FIG. 7 are only for illustration, and this application does not limit it.

Optionally, the link TID-To-Link mapping element may also include a fourth field, which is used to indicate whether the link mapping of TID 8-15 (that is, Link Mapping of TID 8-15) appears.

Specifically, the fourth field may be 1 bit, that is, the link mapping rules of TID 8-15 are the same, and the same field is used to indicate the corresponding link mapping.

In another implementation manner, the TID-To-Link mapping element may be included in the first SCS response frame.

In this application, the TID and link mapping element can be carried in the first SCS response frame, so that when the access point responds to the request for creating the first SCS flow, it can also negotiate the TID-To-Link mapping rule with the station.

As an example, the format of the TID-To-Link mapping element may be as shown in FIG. 7 , or other formats may be used, which are not limited in this application.

It should be understood that when the first SCS response frame includes a TID-To-Link mapping element, if the station does not agree with the link mapping rule indicated by the TID-To-Link mapping element, the station may subsequently send a teardown frame, for example , the TID-To-Link mapping removal frame is used to remove the link mapping rule indicated by the TID-To-Link mapping element.

It should be noted that, the solution that the first SCS request frame or the first SCS response frame includes the TID-To-Link mapping element can be implemented together with the above method 600, or can be implemented as a separate solution.

In one implementation, the first SCS request frame may also include an enhanced distribution channel access (enhanced distribution channel access, EDCA) parameter set element (EDCA parameter set element), which is used to indicate the channel of the station access parameters.

In this application, when the station requests the access point to create the first SCS flow, it may also carry the EDCA parameter set element, so as to negotiate channel access parameters with the access point.

Optionally, the EDCA parameter set element may be an element located in the first SCS descriptor element, or an element located outside the first SCS descriptor element, which is not limited in this application.

As an example, FIG. 8 is a schematic diagram of the format of the EDCA parameter set element provided by the embodiment of the present application. As shown in FIG. 8, the EDCA parameter set element includes an element identifier field (element ID) field, a length (length) field, and QoS information (QoS information), updated EDCA information (update EDCA information), AC_BE parameter report (AC_BE parameter record), AC_BK parameter report (AC_BK parameter record), AC_VI parameter report (AC_VI parameter record), AC_VO parameter report (AC_VO parameter record) . The indication of each field is as follows:

1) The element identifier field is the identifier of the EDCA parameter set element.

2) The length field is used to indicate the length of the EDCA parameter set element.

3) The QoS information field contains capability information bits, and its content depends on whether the sending end is an AP or an STA.

4) The updated EDCA information field is only used for STAs (S1G STA) below 1GHz (sub 1GHz, S1G). For non-S1G STA (Non-SIG STA), this field is reserved (reserved) field.

5) The AC_BE parameter report field is used to indicate the EDCA access parameters corresponding to AC_BE.

6) The AC_BK parameter report field is used to indicate the EDCA access parameters corresponding to AC_BK.

7) The AC_VI parameter report field is used to indicate the EDCA access parameters of the corresponding AC_VI.

8) The AC_VO parameter report field is used to indicate the EDCA access parameters of the corresponding AC_VO.

Specifically, each of the above-mentioned AC_XX (XX can be any one of BE, BK, VI, and VO) parameter report information includes access category index (access category index, ACI)/arbitration interframe space number (arbitration interframe space number, AIFSN) , Minimum contention window index (exponent contention window, ECW)/maximum ECW (ECWmin/ECWmax) field, transmission opportunity (transmit Opportunity, TXOP) time limit (TXOP limit) field.

Wherein, the ACI/AFISN field includes the following information: AIFSN, admission control mandatory (admission control mandatory, ACM), ACI and reserved fields. ACM is used to indicate whether admission control is required. When the value is 1, it means that the data of this AC must use access control before transmission. When the value of ACI is 0, it means AC_BE; when the value is 1, it means AC_BK; when the value is 2, it means AC_VI; when the value is 3, it means AC_VO.

The ECWmin/ECWmax fields include an ECWmin field and an ECWmax field, indicating a minimum contention window index and a maximum contention window index, respectively.

The TXOP time limit field is used to indicate the maximum time length of the corresponding TXOP.

It should be understood that the format of the EDCA parameter set elements in FIG. 8 is only for illustration, and the present application does not limit it.

Optionally, if the first SCS response frame is used to indicate that the first SCS flow is accepted, the method 600 further includes: the station uses the channel access parameters indicated by the EDCA parameter set element to perform channel access.

If the first response frame indicates that the first SCS stream is accepted, the station can use the channel access parameters indicated by the EDCA parameter set element to perform channel access.

In an implementation manner, the station uses the channel access parameters indicated by the EDCA parameter set element to perform channel access, including: when at least one SCS flow among the SCS flows requested to be created by the first SCS request frame has data to be transmitted, the station Use the channel access parameters indicated by the EDCA parameter set element to perform channel access; or, when the SCS flow mapped to the first AC of the station in the SCS flow requested by the first SCS request frame has data to be transmitted, the first AC of the station An AC uses the channel access parameters indicated by the EDCA parameter set element to perform channel access.

In this application, if the first SCS stream is accepted, the station can use the channel access parameters indicated by the EDCA parameter set elements to perform channel access under any circumstances, including continuing to send management frames and sending data. When at least one of the SCS streams requested by an SCS request frame has data to be transmitted, for example, the first SCS request creates multiple SCS streams, including SCS stream #1, SCS stream #2 and SCS stream #3 , as long as one of the SCSs has data to be transmitted, the station uses the channel access parameters indicated by the EDCA parameter set element to perform channel access. Alternatively, in the case where the SCS flow mapped to the first AC of the site has data to be transmitted in the SCS flow requested by the first SCS request frame, for example, the first SCS request creates multiple SCS flows, including the SCS flow# 1. SCS flow #2 and SCS flow #3, wherein SCS flow #1 is mapped to AC #1 of the station, SCS flow #2 and SCS flow #3 are both mapped to AC #2 of the station, when SCS flow #1 is to be transmitted When sending data, AC#1 of the station can use the channel access parameters indicated by the EDCA parameter set element to perform channel access. When SCS flow #2 or SCS flow #3 has data to be transmitted, AC#2 of the station can use the EDCA parameters Channel access is performed according to the channel access parameters indicated by the set element.

In another implementation manner, the first SCS response frame may include an EDCA parameter set element.

That is to say, when responding to the request for creating the first SCS, the access point may also carry the EDCA parameter set element through the first SCS response frame, so as to indicate the channel access parameters of the station.

Optionally, when the status code is success, the EDCA parameter set element indicates the EDCA parameters to be adopted by the STA; when the status code is rejection, the EDCA parameter set element indicates the suggested EDCA parameters.

If the status code in the first SCS response frame indicates that the first SCS flow is accepted, the parameters indicated by the EDCA parameter set element are the parameters that should be used for the SCS flow, that is, the station must use the parameters indicated by the EDCA parameter set element. The parameters of the EDCA parameter set element are the parameters that must be used by the station; if the status code indicates that the first SCS flow is rejected (reject with suggested changes), the parameters indicated by the EDCA parameter set element are the parameters suggested for the first SCS flow, that is, , the station can re-initiate the SCS request, and determine whether to use the parameters suggested by the access point according to the actual situation.

Similarly, the EDCA parameter set element in the SCS response frame can be used to indicate: if the status code in the first SCS response frame indicates that the first SCS stream is accepted, the station can use the channel access parameters indicated by the EDCA parameter set element Perform channel access.

Specifically, the access point indicates that the station can use the channel access parameters indicated by the EDCA parameter set element to perform channel access, including: instructing the station to use the channel access parameter indicated by the EDCA parameter set element to perform channel access in any case; into; or,

Indicate that when at least one of the SCS flows requested to be created by the first SCS request frame has data to be transmitted, the station uses the channel access parameters indicated by the EDCA parameter set element to perform channel access; or,

Indicates that when the SCS flow mapped to the first AC of the station has data to be transmitted in the SCS flow requested by the first SCS request frame, the first AC of the station uses the channel access parameters indicated by the EDCA parameter set element to perform channel access .

As an example, the format of the EDCA parameter set element may be as shown in FIG. 8 , or other formats may be used, which are not limited in this application.

Therefore, the embodiment of the present application can request or indicate new EDCA parameters, so as to better participate in channel access and support the QoS requirements of SCS flow data.

It should be noted that, the solution that the first SCS request frame or the first SCS response frame includes the EDCA parameter set elements may be implemented together with the above method 600, or may be implemented as a separate solution.

In an implementation manner, the method 600 further includes: the station sends a first frame to the access point, the first frame includes a first measurement report element, the first measurement report element includes a second field, and the second field uses Indicates the number of the first MSDU, and the first MSDU is the MSDU successfully transmitted within the range of the delay upper limit indicated in the first QoS characteristic element.

In this application, after the data transmission is completed, the station may also send feedback information to the access point to indicate the number of successfully transmitted MSDUs within the delay upper limit indicated in the first QoS feature element. For example, the station counts the time delay experienced by the MSDU sent from arriving at the service access point (Service Access Point, MAC SAP) to successfully receiving the ACK, so as to determine the upper limit of the time delay (that is, the delay bound field in the first QoS feature element) The number of successfully transmitted MSDUs within the indicated time delay) is the feedback information. Further, the station may carry the feedback information through the measurement report element in the first frame.

After the access point receives the first SCS frame, it can determine whether the current QoS parameters are appropriate according to the feedback information of the first SCS frame, so as to decide whether to modify the transmission resources allocated to the station to meet the requirements indicated by the first QoS characteristic element. QoS parameters.

Optionally, the frame type of the first frame is a transmit stream/category measurement report (transmit stream/category measurement report).

As an example, FIG. 9 is a schematic diagram of the format of a measurement report element provided by an embodiment of the present application. As shown in (a) of FIG. 9 , the first measurement report element includes an element identifier field (element ID) field, a length (length) field, measurement token field, measurement report mode field, measurement type field, measurement report. Specifically, the meanings of each field are as follows:

1) The element identifier is used to identify the measurement report element.

2) The length field is used to indicate the length of the measurement report element.

3) The measurement token field is used to match the corresponding measurement request frame and measurement response frame.

4) The measurement request mode field is used to indicate the mode of the measurement report. The measurement request mode fields include a late (late) field, an incapable (incapable) field, a refused (refused) field, and a reserved (reserved) field.

a) The hysteresis field is used to indicate that the station cannot perform the measurement operation because the measurement request is received after the requested measurement time point;

b) The inability field is used to indicate whether the station does not have the ability to generate measurement reports;

c) The rejection field is used to indicate whether the site refuses to generate measurement reports;

5) The measurement type is used to indicate the type of measurement;

6) The measurement report field is used to carry relevant statistical information of the measurement report; specifically includes:

a) Actual measurement start time (actual measurement start time) field: if it is a measurement report based on trigger conditions, this field carries the time value at the trigger moment;

c) Measurement duration (measurement duration) field: In the triggered transmission stream/category measurement report (transmit stream/category measurement report), the relevant information of multiple transmitted MSDUs is measured, not a duration, so the measurement The duration field is set to 0.

c) The peer station address (peer sta address) field is used to indicate the receiver address (RA) of the measured frame.

d) The traffic identifier (traffic identifier) field contains the TID field, and the TID field is used to indicate the traffic category (traffic category, TC) or traffic stream (traffic steam, TS) of the measured service, where the value of TID is 0-7 When the TID is 8-15, it is used to identify the service type. When the TID is 8-15, it is used to identify the SCS flow. The format of the communication identifier may be as shown in (b) of FIG. 9 .

e) Reporting Reason: It includes the following bits:

Average trigger frame (average trigger), if the value of this bit is 1, it means that the measurement report is generated by the average error trigger frame (average error trigger).

Continuous trigger frame (consecutive trigger), if the value of this bit is 1, it means that the measurement report is generated due to continuous error trigger frame (consecutive error trigger).

Delay trigger frame (delay trigger), if this bit is 1, it means that the measurement report is generated because the delay exceeds the delay threshold.

f) The number of MSDUs sent (transmitted MSDU Count) indicates the number of MSDUs that were successfully sent and received confirmation.

g) The number of discarded MSDUs (MSDU discarded count) indicates the number of MSDUs discarded due to timeout or exceeding the number of retransmissions.

h) The number of MSDUs that failed to be sent (MSDU failed count) indicates the number of MSDUs discarded due to exceeding the number of retransmissions.

i) The number of MSDUs retransmitted multiple times (MSDU multiple retry count) indicates the number of MSDUs that were successfully transmitted and retransmitted more than once.

j) QoS CF-polls frame loss times (QoS CF-polls lost count) represent the loss times of quality of service non-competition polling (quality of service contention-free-polls, QoS CF-polls) frames.

k) Average transmit delay (average transmit delay) represents the average value of the transmission delay.

l) Bin 0 range (range) indicates the delay range of the first histogram (Bin 0) of the transmission delay (transmit delay) histogram, and the Bin 0 range is recorded as B0.

m) Bin 0 indicates the number of MSDUs whose delay falls within 0 ≤ delay < B0.

n) Bin i represents the number of MSDUs whose delay falls within 2 ^i-1 ·B0 ≤ delay<2 ⁱ ·B0.

o) The second field is used to indicate the number of first MSDUs, and the first MSDUs are MSDUs successfully transmitted within the range of the delay upper limit indicated in the first QoS feature element.

As an example, the second field may be called an MSDU delivery count (MSDU delivery count) field.

Optionally, the measurement report element further includes a third field, where the third field is used to indicate whether the second field exists.

For example, as shown in (c) of Figure 9, a third field may be included in the communication indicator field, the third field is 1 bit, and when the value of the third field is 0, it means that the second field does not exist, When the value of the third field is 1, it means that the second field exists.

As an example, the second field may be called an MSDU delivery count present (MSDU delivery count present) field.

It should be understood that FIG. 9 is only an example, and the present application does not limit specific positions of the second field and the third field. In addition, the format of the measurement report element in FIG. 9 is only for illustration, which is not limited in the present application.

Therefore, this application reports the measurement report so that the AP can calculate the MSDU packet delivery ratio currently reached by the data of the SCS flow according to the measurement report, and the AP can decide whether to take measures to improve the QoS of the SCS flow according to the report parameter.

It should be noted that the solution that the first frame includes the measurement report element can be implemented together with the above method 600, or can be implemented as a separate solution.

It should be understood that the above TID-To-Link mapping elements, EDCA parameter set elements, and measurement report elements may all be carried in the same frame, or may be carried in different frames respectively, which is not limited in this application.

As an example, an embodiment of the present application further provides an SCS communication method, the method includes: sending a second frame, where the second frame includes a TID-To-Link mapping element.

That is, the above TID-To-Link mapping element may be carried in other frames as an independent element, for example, the TID-To-Link mapping element may be carried in an association request frame (association request frame) as a separate element.

Optionally, for the format and meaning of the TID-To-Link mapping element, reference may be made to the method 600 above, which will not be repeated here.

Optionally, the foregoing method may be executed by a station, or may also be executed by a chip or a circuit configured in the station, or may also be executed by an access point, or may also be executed by a chip or a circuit configured in the access point The implementation of the circuit is not limited in this application.

Similarly, the embodiment of the present application also provides a SCS communication method, the method includes: sending a third frame, where the third frame includes EDCA parameter set elements. That is, the EDCA parameter set elements can be carried in other frames as independent elements.

Optionally, for the format and meaning of the EDCA parameter set elements, reference may be made to the method 600 above, which will not be repeated here.

Optionally, the method may be executed by the station, or may also be executed by a chip or a circuit configured in the station, or may also be executed by an access point, or may also be executed by a chip or a circuit configured in the access point circuit implementation, this application does not limit

Similarly, the embodiment of the present application also provides an SCS communication method, the method includes: the access point sends the first frame, the first frame includes the measurement report element, that is, the station carries the measurement report element in the first frame and can also communicate with Method 600 is decoupled as an independent solution.

Above, with reference to FIG. 1 to FIG. 9 , the SCS communication method provided by the embodiment of the present application is described in detail. An embodiment of the present application provides a communication device. In a possible implementation manner, the device is configured to implement the steps or processes corresponding to the stations in the foregoing method embodiments. In another possible implementation manner, the apparatus is configured to implement the steps or processes corresponding to the multi-link access point in the foregoing method embodiments.

Hereinafter, the communication device provided by the embodiment of the present application will be described in detail with reference to FIG. 10 to FIG. 11 .

Fig. 10 is a schematic block diagram of a communication device provided by an embodiment of the present application. As shown in FIG. 10 , the apparatus 700 may include a processing unit 710 and a transceiver unit 720 . The processing unit 710 is used for data processing. The transceiver unit 720 can communicate with the outside, and the transceiver unit 720 can also be called a communication interface or a communication unit.

In a possible design, the device 700 can implement the steps or processes corresponding to the execution of the site in the above method embodiment, wherein the processing unit 710 is used to perform the processing-related operations of the site in the above method embodiment, The transceiving unit 720 is configured to perform operations related to transceiving of stations in the above method embodiments.

Exemplarily, the processing unit 710 is configured to determine a first QoS characteristic element, where the first QoS characteristic element includes a first TID field, where the first TID field is used to indicate the service identifier of the first SCS flow, and the first QoS The characteristic element is used to indicate the QoS parameter of the first SCS flow; the sending unit 720 is configured to send the first SCS request frame to the access point, the first SCS request frame includes the first QoS characteristic element, and the first SCS request frame uses Create the first SCS stream on request.

Optionally, the value of the first TID field is any one of 8 to 15.

Optionally, the first QoS feature element further includes a first direction field, the first direction field is used to indicate the transmission direction of the first SCS flow, and the first direction field and the first TID field are used to identify the first SCS stream flow.

Optionally, the transceiver unit 720 is also configured to: receive a first SCS response frame, the first SCS response frame is used to respond to the first SCS request frame, and the first SCS response frame is used to indicate whether the first SCS flow is accepted The processing unit 710 is also used for: if the first SCS stream is accepted, then send a second SCS request frame, the second SCS request frame includes a second QoS feature element, and the second QoS feature element includes a second TID field and the second direction field, the second TID field is used to indicate the service identifier of the second SCS flow, the second direction field is used to indicate the transmission direction of the second SCS flow, the second direction field and the second TID are used to identify the second SCS flow, the second SCS request frame is used to request to create a second SCS flow, wherein the value of the second direction field is different from that of the first direction field; or, the value of the second TID field is different from the value of the first TID field different; or, the value of the second direction field is different from the value of the first direction field, and the value of the second TID field is different from the value of the first TID field.

Optionally, the transceiver unit 720 is also configured to: receive a first SCS response frame, the first SCS response frame is used to respond to the first SCS request frame, and the first SCS response frame is used to indicate that the first SCS flow is accepted; Two SCS request frames, the second SCS request frame includes a second QoS feature element, the second QoS feature element includes a second TID field and a second direction field, the second TID field is used to indicate the service identifier of the second SCS flow, and the second The direction field is used to indicate the transmission direction of the second SCS flow, and the second direction field and the second TID are used to identify the second SCS flow.

Optionally, the first QoS feature element includes a first user priority field, which is a reserved field, and the first SCS request frame further includes a first flow classification element, and the first flow classification element is used to indicate that the first SCS In the flow identification manner, the first flow classification element includes a second user priority field, and the second user priority field is used to indicate the priority of the first SCS flow.

Optionally, the first QoS feature element includes a first user priority field, and the first SCS request frame further includes a first flow classification element, where the first flow classification element is used to indicate the identification mode of the first SCS flow, and the first flow classification The element includes a second user priority field, the value of the first user priority field is the same as the value of the second user priority field, and the second user priority field is used to indicate the priority of the first SCS flow.

Optionally, the first SCS request frame further includes a second flow classification element, the second flow classification element is used to indicate the identification mode of the first SCS flow, the second flow classification element includes a third user priority field, the The value of the third user priority field is the same as the value of the second user priority field.

Optionally, the first SCS request frame further includes a service identifier and link TID-To-Link mapping element, where the TID-To-Link mapping element is used to indicate a mapping rule between a service identifier and a link.

Optionally, the TID-To-Link mapping element includes a first field and a link mapping presence bitmap, where the first field is used to indicate the length of the link mapping presence bitmap.

Optionally, the first SCS request frame further includes an enhanced distributed channel access parameter set element, where the enhanced distributed channel access parameter set element is used to indicate channel access parameters of the station.

The transceiver unit 720 is also configured to: receive a first SCS response frame, the first SCS response frame is used to respond to the first SCS request frame, and the first SCS response frame is used to indicate that the first SCS flow is accepted; the processing unit 710 also uses For: performing channel access by using the channel access parameters indicated by the elements of the enhanced distributed channel access parameter set.

Optionally, the processing unit 710 is specifically configured to: use the channel access indicated by the enhanced distributed channel access parameter set element when at least one of the SCS streams requested to be created by the first SCS request frame has data to be transmitted. parameters for channel access; or, when the SCS flow mapped to the first access type AC of the station has data to be transmitted in the SCS flow requested by the first SCS request frame, the first AC of the device uses the enhanced distributed channel Channel access is performed by using the channel access parameters indicated by the access parameter set element.

Optionally, the transceiving unit 720 is further configured to: send a first frame, the first frame includes a measurement report element, and the measurement report element includes a second field, where the second field is used to indicate that the first medium access control service data unit The number of (media access control service data unit, MSDU), the first MSDU is the MSDU successfully transmitted within the range of the delay upper limit indicated in the first QoS characteristic element.

Optionally, the measurement report element further includes a third field, and the third field is used to indicate whether the second field exists.

Exemplarily, the above-mentioned transceiving unit 720 can be divided into a receiving unit and a sending unit, wherein the receiving unit is used to perform the receiving-related operations of the station in the above method embodiment, and the sending unit is used to perform the station in the above method embodiment Send related operations.

In a possible design, the apparatus 700 may implement the steps or procedures corresponding to the access point in the above method embodiment, wherein the processing unit 710 is configured to perform the processing of the access point in the above method embodiment For related operations, the transceiving unit 720 is configured to perform operations related to the sending and receiving of the access point in the above method embodiments.

Exemplarily, the transceiver unit 720 is configured to receive a first SCS request frame from the station, where the first SCS request frame is used to request to create a first SCS flow; The first SCS response frame of the SCS request frame, the first SCS response frame is used to indicate whether the first SCS flow is accepted, the third QoS characteristic element includes the third TID field, and the third TID field is used to indicate the service of the first SCS flow ID, the third QoS characteristic element is used to indicate the QoS parameter of the first SCS flow.

Optionally, the value of the third TID field is any one of 8 to 15.

Optionally, the third QoS feature element further includes a third direction field, the third direction field is used to indicate the transmission direction of the first SCS flow, and the third direction field and the third TID are used to identify the first SCS flow.

Optionally, the transceiver unit 720 is further configured to: receive a second SCS request frame, the second SCS request frame includes a second QoS feature element, the second QoS feature element includes a second TID field and a second direction field, and the second The TID field is used to indicate the service identifier of the second SCS flow, the second direction field is used to indicate the transmission direction of the second SCS flow, the second direction field and the second TID are used to identify the second SCS flow, and the second SCS request frame uses Based on the request to create a second SCS stream, wherein, the value of the second direction field is different from that of the first direction field; or, the value of the second TID field is different from the value of the first TID field; or, the value of the second direction field The value of is different from that of the first direction field, and the value of the second TID field is different from that of the first TID field.

Optionally, the first SCS response frame is used to indicate that the first SCS flow is accepted, and the transceiver unit 720 is also used to: receive a second SCS request frame, the second SCS request frame includes a second QoS characteristic element, and the second QoS The feature element includes a second TID field and a second direction field, the second TID field is used to indicate the service identifier of the second SCS flow, the second direction field is used to indicate the transmission direction of the second SCS flow, the second direction field and the second The TID is used to identify the second SCS flow, and the second SCS request frame is used to request to create the second SCS flow; the processing unit 710 is configured to: if the value of the second direction field is the same as the value of the first direction field, and the second If the value of the second TID field is the same as that of the first TID field, then the locally stored information of the first SCS stream is deleted.

Optionally, the third QoS characteristic element includes a fourth user priority field, and the fourth user priority field is a reserved field, and the first SCS response frame further includes a third flow classification element, and the third flow classification element is used to indicate the An identification method of the SCS flow, the third flow classification element includes a fifth user priority field, and the fifth user priority field is used to indicate the priority of the first SCS flow.

Optionally, the third QoS feature element includes a fourth user priority field, and the first SCS response frame further includes a third flow classification element, the third flow classification element is used to indicate the identification mode of the first SCS flow, and the third flow The classification element includes a fifth user priority field, the value of the fifth user priority field is the same as that of the fourth user priority field, and the fifth priority field is used to indicate the priority of the first SCS flow.

Optionally, the first SCS response frame further includes a fourth flow classification element, the fourth flow classification element is used to indicate the identification mode of the first SCS flow, the fourth flow classification element includes a sixth user priority field, and the sixth user The value of the priority field is the same as the value of the fifth user priority field.

Optionally, the first SCS response frame further includes a service identifier and link TID-To-Link mapping element, and the TID-To-Link mapping element is used to indicate a mapping rule between the service identifier and the link.

Optionally, the TID-To-Link mapping element includes a first field and a link mapping existence bitmap, and the first field is used to indicate the length of the link mapping existence bitmap.

Optionally, the first SCS response frame further includes an enhanced distributed channel access parameter set element, where the enhanced distributed channel access parameter set element is used to indicate channel access parameters of the station.

Exemplarily, the above-mentioned transceiver unit 720 can be divided into a receiving unit and a sending unit, wherein the receiving unit is used to perform operations related to the reception of the access point in the above method embodiment, and the sending unit is used to perform the above method embodiment Operations related to the sending of the access point.

It should be understood that the apparatus 700 here is embodied in the form of functional units. The term "unit" here may refer to an application specific integrated circuit (ASIC), an electronic circuit, a processor for executing one or more software or firmware programs (such as a shared processor, a dedicated processor, or a group processor, etc.) and memory, incorporated logic, and/or other suitable components to support the described functionality.

The apparatus 700 in the above solutions has the function of implementing the corresponding steps performed by the station in the above method, or the apparatus 700 in the above various solutions has the function of implementing the corresponding steps performed by the access point in the above method. The functions described above may be implemented by hardware, or may be implemented by executing corresponding software on the hardware. The hardware or software includes one or more modules corresponding to the above functions; for example, the transceiver unit can be replaced by a transceiver (for example, the sending unit in the transceiver unit can be replaced by a transmitter, and the receiving unit in the transceiver unit can be replaced by a receiver computer), and other units, such as a processing unit, may be replaced by a processor to respectively perform the sending and receiving operations and related processing operations in each method embodiment.

In addition, the above-mentioned transceiver unit may also be a transceiver circuit (for example, may include a receiving circuit and a sending circuit), and the processing unit may be a processing circuit. In the embodiment of the present application, the device in FIG. 7 may be a chip or a chip system, for example: a system on chip (system on chip, SoC). Wherein, the transceiver unit may be an input-output circuit or a communication interface; the processing unit is a processor or a microprocessor or an integrated circuit integrated on the chip. It is not limited here.

Fig. 11 is another schematic block diagram of a communication device provided by an embodiment of the present application. As shown in FIG. 11 , the device 800 includes a processor 810 and a transceiver 820 . Wherein, the processor 810 and the transceiver 820 communicate with each other through an internal connection path, and the processor 810 is used to execute instructions to control the transceiver 820 to send signals and/or receive signals.

Optionally, the apparatus 800 may further include a memory 830, and the memory 830 communicates with the processor 810 and the transceiver 820 through an internal connection path. The memory 830 is used to store instructions, and the processor 810 can execute the instructions stored in the memory 830 . In a possible implementation manner, the apparatus 800 is configured to implement various processes and steps corresponding to the sending end in the foregoing method embodiments. In another possible implementation manner, the apparatus 800 is configured to implement various processes and steps corresponding to the receiving end in the foregoing method embodiments.

It should be understood that the apparatus 800 may specifically be the sending end or the receiving end in the foregoing embodiments, and may also be a chip or a chip system. Correspondingly, the transceiver 820 may be a transceiver circuit of the chip, which is not limited here. Specifically, the apparatus 800 may be used to execute various steps and/or processes corresponding to the sending end or the receiving end in the above method embodiments. Optionally, the memory 830 may include read-only memory and random-access memory, and provides instructions and data to the processor. A portion of the memory may also include non-volatile random access memory. For example, the memory may also store device type information. The processor 810 may be used to execute the instructions stored in the memory, and when the processor 810 executes the instructions stored in the memory, the processor 810 is used to execute the steps of the above-mentioned method embodiments corresponding to the sending end or the receiving end and/or process.

The present application also provides a computer-readable medium on which a computer program is stored, and when the computer program is executed by a computer, the functions of any one of the above method embodiments are realized.

The present application also provides a computer program product, which implements the functions of any one of the above method embodiments when executed by a computer.

The present application also provides a system, which includes the aforementioned one or more stations and one or more access points.

In the above embodiments, all or part of them may be implemented by software, hardware, firmware or any combination thereof. When implemented using software, it may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer instructions are loaded and executed on the computer, the processes or functions according to the embodiments of the present application will be generated in whole or in part. The computer can be a general purpose computer, a special purpose computer, a computer network, or other programmable devices. The computer instructions may be stored in or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer instructions may be transmitted from a website, computer, server or data center Transmission to another website site, computer, server or data center by wired (such as coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (such as infrared, wireless, microwave, etc.). The computer-readable storage medium may be any available medium that can be accessed by a computer, or a data storage device such as a server or a data center integrated with one or more available media. The available medium may be a magnetic medium (for example, a floppy disk, a hard disk, a magnetic tape), an optical medium (for example, a high-density digital video disc (digital video disc, DVD)), or a semiconductor medium (for example, a solid state disk (solid state disk, SSD)) etc.

In the embodiments of the present application, words such as "exemplary" and "for example" are used as examples, illustrations or descriptions. Any embodiment or design described herein as "example" is not to be construed as preferred or advantageous over other embodiments or designs. Rather, the use of the word example is intended to present concepts in a concrete manner.

It should be understood that references to "an embodiment" throughout this specification mean that a particular feature, structure, or characteristic related to the embodiment is included in at least one embodiment of the present application. Thus, the various embodiments throughout the specification are not necessarily referring to the same embodiment. Furthermore, the particular features, structures or characteristics may be combined in any suitable manner in one or more embodiments.

It should be understood that, in various embodiments of the present application, the sequence numbers of the above-mentioned processes do not mean the order of execution, and the execution order of the processes should be determined by their functions and internal logic, and should not be used in the embodiments of the present application. The implementation process constitutes any limitation. The names of all nodes and messages in this application are only the names set by this application for the convenience of description. The names in the actual network may be different. It should not be understood that this application limits the names of various nodes and messages. On the contrary, any with and The names of nodes or messages with the same or similar functions used in this application are regarded as the methods of this application or equivalent replacements, and all are within the protection scope of this application.

It should also be understood that in this application, "when", "if" and "if" all mean that the UE or the base station will make corresponding processing under certain objective circumstances, and it is not a limited time, and the UE is not required to Or the base station must have a judgment action when it is implemented, and it does not mean that there are other restrictions.

It should be noted that in this embodiment of the application, "presetting", "preconfiguring", etc. can be realized by pre-saving corresponding codes, tables or other methods that can be used to indicate related information in the device (for example, terminal device). implementation, the present application does not limit its specific implementation, such as the preset rules and preset constants in the embodiments of the present application.

Additionally, the terms "system" and "network" are often used herein interchangeably. The term "and/or" in this article is just an association relationship describing associated objects, which means that there can be three relationships, for example, A and/or B can mean: A exists alone, A and B exist simultaneously, and they exist alone B these three situations.

Herein, the term "at least one of" or "at least one of" means all or any combination of the listed items, for example, "at least one of A, B and C", It can be expressed: A exists alone, B exists alone, C exists alone, A and B exist simultaneously, B and C exist simultaneously, and A, B, and C exist simultaneously. "At least one" herein means one or more. "Multiple" means two or more.

It should be understood that in each embodiment of the present application, "B corresponding to A" means that B is associated with A, and B can be determined according to A. However, it should also be understood that determining B according to A does not mean determining B only according to A, and B may also be determined according to A and/or other information. The terms "including", "comprising", "having" and variations thereof mean "including but not limited to", unless specifically stated otherwise.

It should be understood that in various embodiments of the present application, the first, second and various numbers are only for convenience of description and are not used to limit the scope of the embodiments of the present application. For example, to distinguish different information, etc.

Those skilled in the art can appreciate that the units and algorithm steps of the examples described in conjunction with the embodiments disclosed herein can be implemented by electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are executed by hardware or software depends on the specific application and design constraints of the technical solution. Skilled artisans may use different methods to implement the described functions for each specific application, but such implementation should not be regarded as exceeding the scope of the present application.

Those skilled in the art can clearly understand that for the convenience and brevity of the description, the specific working process of the above-described system, device and unit can refer to the corresponding process in the foregoing method embodiment, which will not be repeated here.

In the several embodiments provided in this application, it should be understood that the disclosed systems, devices and methods may be implemented in other ways. For example, the device embodiments described above are only illustrative. For example, the division of the units is only a logical function division. In actual implementation, there may be other division methods. For example, multiple units or components can be combined or May be integrated into another system, or some features may be ignored, or not implemented. In another point, the mutual coupling or direct coupling or communication connection shown or discussed may be through some interfaces, and the indirect coupling or communication connection of devices or units may be in electrical, mechanical or other forms.

The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place, or may be distributed to multiple network units. Part or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.

In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, each unit may exist separately physically, or two or more units may be integrated into one unit.

If the functions described above are realized in the form of software function units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application is essentially or the part that contributes to the prior art or the part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including Several instructions are used to make a computer device (which may be a personal computer, a server, or a network device, etc.) execute all or part of the steps of the methods described in the various embodiments of the present application. The aforementioned storage media include: U disk, mobile hard disk, read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), magnetic disk or optical disc and other media that can store program codes. .

The above is only a specific implementation of the application, but the scope of protection of the application is not limited thereto. Anyone familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the application. Should be covered within the protection scope of this application. Therefore, the protection scope of the present application should be determined by the protection scope of the claims.

Claims

A communication method for a flow classification service, characterized in that it includes:

The station determines the first quality of service QoS feature element, the first QoS feature element includes a first service identifier TID field, and the first TID field is used to indicate the service identifier of the first flow classification service SCS flow, and the first QoS The characteristic element is used to indicate the QoS parameter of the first SCS flow;

The station sends a first SCS request frame to the access point, where the first SCS request frame includes the first QoS feature element, and the first SCS request frame is used to request creation of the first SCS flow.
The method according to claim 1, wherein the value of the first TID field is any one of 8 to 15.
The method according to claim 1 or 2, wherein the first QoS feature element further includes a first direction field, the first direction field is used to indicate the transmission direction of the first SCS flow, the The first direction field and the first TID field are used to identify the first SCS flow.
The method according to claim 3, characterized in that the method further comprises:

The station receives a first SCS response frame, the first SCS response frame is used to respond to the first SCS request frame, and the first SCS response frame is used to indicate whether the first SCS flow is accepted;

If the first SCS flow is accepted, the station sends a second SCS request frame, the second SCS request frame includes a second QoS feature element, and the second QoS feature element includes a second TID field and a second direction field, the second TID field is used to indicate the service identifier of the second SCS flow, the second direction field is used to indicate the transmission direction of the second SCS flow, the second direction field and the second The TID is used to identify the second SCS flow, and the second SCS request frame is used to request to create the second SCS flow, wherein,

The value of the second direction field is different from that of the first direction field; or,

The value of the second TID field is different from the value of the first TID field; or,

The value of the second direction field is different from the value of the first direction field, and the value of the second TID field is different from the value of the first TID field.
The method according to claim 3, characterized in that the method further comprises:

The station receives a first SCS response frame, the first SCS response frame is used to respond to the first SCS request frame, and the first SCS response frame is used to indicate that the first SCS flow is accepted;

The station sends a second SCS request frame, the second SCS request frame includes a second QoS feature element, the second QoS feature element includes a second TID field and a second direction field, and the second TID field is used for Indicates the service identifier of the second SCS flow, the second direction field is used to indicate the transmission direction of the second SCS flow, and the second direction field and the second TID are used to identify the second SCS flow.
The method according to any one of claims 1 to 5, wherein the first QoS feature element includes a first user priority field, the first user priority field is a reserved field, and the first The SCS request frame also includes a first flow classification element, the first flow classification element is used to indicate the identification mode of the first SCS flow, the first flow classification element includes a second user priority field, and the second user priority field is used to indicate the priority of the first SCS flow.
The method according to any one of claims 1 to 5, wherein the first QoS feature element includes a first user priority field, and the first SCS request frame further includes a first flow classification element, the The first flow classification element is used to indicate the identification mode of the first SCS flow, and the first flow classification element includes the second user priority field, the value of the first user priority field and the value of the second user priority field The values are the same, and the second user priority field is used to indicate the priority of the first SCS stream.
The method according to claim 6 or 7, wherein the first SCS request frame further includes a second flow classification element, the second flow classification element is used to indicate the identification mode of the first SCS flow, The second flow classification element includes a third user priority field, and a value of the third user priority field is the same as a value of the second user priority field.
The method according to any one of claims 1 to 8, wherein the first SCS request frame further includes a service identifier and link TID-To-Link mapping element, and the TID-To-Link mapping element It is used to indicate the mapping rules between service identifiers and links.
The method according to claim 9, wherein the TID-To-Link mapping element includes a first field and a link mapping existence bitmap, and the first field is used to indicate that the link mapping existence bit The length of the bitmap.
The method according to any one of claims 1 to 10, wherein the first SCS request frame further includes an enhanced distributed channel access parameter set element, and the enhanced distributed channel access parameter set element uses Indicates the channel access parameters of the station.
The method according to claim 11, characterized in that the method further comprises:

The station receives a first SCS response frame, the first SCS response frame is used to respond to the first SCS request frame, and the first SCS response frame is used to indicate that the first SCS flow is accepted;

The station performs channel access using the channel access parameters indicated by the enhanced distributed channel access parameter set element.
The method according to claim 12, wherein the station uses the channel access parameters indicated by the elements of the enhanced distributed channel access parameter set to perform channel access, including:

When at least one of the SCS flows requested to be created by the first SCS request frame has data to be transmitted, the station uses the channel access parameters indicated by the enhanced distributed channel access parameter set element to perform channel access ;or,

When the SCS flow mapped to the first access type AC of the station has data to be transmitted in the SCS flow requested by the first SCS request frame, the first AC of the station uses the enhanced distributed channel access Channel access is performed according to the channel access parameters indicated by the input parameter set element.
The method according to any one of claims 1 to 13, further comprising:

Sending a first frame, where the first frame includes a measurement report element, and the measurement report element includes a second field, where the second field is used to indicate the number of the first medium access control service data unit MSDU, and the second field An MSDU is an MSDU successfully transmitted within the range of the delay upper limit indicated in the first QoS feature element.
The method according to claim 14, wherein the measurement report element further includes a third field, and the third field is used to indicate whether the second field exists.
A communication method for a flow classification service, characterized in that it includes:

The access point receives a first flow classification service SCS request frame from the station, and the first SCS request frame is used to request to create a first SCS flow;

The access point sends a first SCS response frame for responding to the first SCS request frame to the station, the first SCS response frame is used to indicate whether the first SCS flow is accepted, and the first SCS The response frame includes a third QoS feature element, the third QoS feature element includes a third service flow identifier TID field, the third TID field is used to indicate the service identifier of the first SCS flow, and the third QoS The feature element is used to indicate the QoS parameters of the first SCS flow.
The method according to claim 16, wherein the value of the third TID field is any one of 8 to 15.
The method according to claim 16 or 17, wherein the third QoS feature element further includes a third direction field, the third direction field is used to indicate the transmission direction of the first SCS flow, the The third direction field and the third TID are used to identify the first SCS flow.
The method according to claim 18, further comprising:

The access point receives a second SCS request frame, the second SCS request frame includes a second QoS feature element, the second QoS feature element includes a second TID field and a second direction field, and the second TID field Used to indicate the service identifier of the second SCS flow, the second direction field is used to indicate the transmission direction of the second SCS flow, and the second direction field and the second TID are used to identify the second SCS flow, the second SCS request frame is used to request to create the second SCS flow, wherein,

The value of the second direction field is different from that of the first direction field; or,

The value of the second TID field is different from the value of the first TID field; or,

The value of the second direction field is different from that of the first direction field, and the value of the second TID field is different from that of the first TID field.
The method according to claim 18, wherein the first SCS response frame is used to indicate that the first SCS flow is accepted, the method further comprising:

The access point receives a second SCS request frame, the second SCS request frame includes a second QoS feature element, the second QoS feature element includes a second TID field and a second direction field, and the second TID field Used to indicate the service identifier of the second SCS flow, the second direction field is used to indicate the transmission direction of the second SCS flow, and the second direction field and the second TID are used to identify the second SCS flow, the second SCS request frame is used to request to create the second SCS flow;

If the value of the second direction field is the same as the value of the first direction field, and the value of the second TID field is the same as the value of the first TID field, the access point Deleting locally stored information about the first SCS stream.
The method according to any one of claims 16 to 20, wherein the third QoS feature element includes a fourth user priority field, the fourth user priority field is a reserved field, and the first The SCS response frame also includes a third flow classification element, the third flow classification element is used to indicate the identification mode of the first SCS flow, the third flow classification element includes a fifth user priority field, and the fifth The user priority field is used to indicate the priority of the first SCS flow.
The method according to any one of claims 16 to 20, wherein the third QoS feature element includes a fourth user priority field, and the first SCS response frame further includes a third flow classification element, so The third flow classification element is used to indicate the identification mode of the first SCS flow, the third flow classification element includes a fifth user priority field, the value of the fifth user priority field and the fourth user priority The value of the priority field is the same, and the fifth priority field is used to indicate the priority of the first SCS flow.
The method according to claim 21 or 22, wherein the first SCS response frame further includes a fourth flow classification element, and the fourth flow classification element is used to indicate the identification mode of the first SCS flow, The fourth flow classification element includes a sixth user priority field, and a value of the sixth user priority field is the same as a value of the fifth user priority field.
The method according to any one of claims 16 to 23, wherein the first SCS response frame further includes a service identifier and link TID-To-Link mapping element, and the TID-To-Link mapping element It is used to indicate the mapping rules between service identifiers and links.
The method according to claim 24, wherein the TID-To-Link mapping element includes a first field and a link mapping existence bitmap, and the first field is used to indicate that the link mapping existence bit The length of the bitmap.
The method according to any one of claims 16 to 25, wherein the first SCS response frame further includes an enhanced distributed channel access parameter set element, and the enhanced distributed channel access parameter set element uses Indicates the channel access parameters of the station.
A communication device, characterized by comprising: a unit or module for implementing the method according to any one of claims 1 to 15, or for implementing the method according to any one of claims 16 to 26 A unit or module of a method.
A communication device, characterized by comprising:

memory for storing computer instructions;

A processor, configured to execute the computer instructions stored in the memory, so that the communication device performs the method according to any one of claims 1 to 15, or causes the communication device to perform the method according to any one of claims 16 to 26 any one of the methods described.
A chip, characterized in that it includes: a processor and an interface, used to call and run the computer program stored in the memory from the memory, so as to execute the method according to any one of claims 1 to 15, or Carrying out the method as claimed in any one of claims 16 to 26.
A computer-readable storage medium, characterized in that it is used to store a computer program, the computer program includes instructions for realizing the method according to any one of claims 1 to 15, or includes instructions for realizing the method according to any one of claims 1 to 15 Instructions for the method described in any one of 16 to 26 are required.
A computer program product, characterized in that it includes computer program code, when the computer program code is run on a computer, it causes the computer to implement the method according to any one of claims 1 to 15 or causes the computer to implement A method as claimed in any one of claims 16 to 26.