Communication method and device, and storage medium

Abstract

The embodiments of the present disclosure relate to the technical field of communication. Provided are a communication method and device, and a storage medium. The method is applied to a first AP, and comprises: when first restricted target wake time (R-TWT) scheduling is present in R-TWT scheduling established by the first AP, determining a first radio frame, wherein the first radio frame comprises scheduling information of the first R-TWT scheduling, and is used for requesting that a second AP performs R-TWT coordination, the R-TWT service period (SP) of the first R-TWT scheduling overlaps the R-TWT SP of at least one instance of R-TWT scheduling established by the second AP, the participants in the first R-TWT scheduling include a station (STA) located in a first overlapping basic service set (OBSS), and a first basic service set (BSS) where the first AP is located and a second BSS where the second AP is located form the first OBSS; and sending the first radio frame. The embodiments of the present disclosure can provide a method for requesting R-TWT coordination.

Description

Communication method, device and storage medium Technical Field

[0001] The present disclosure relates to the field of communication technologies, and in particular to a communication method, device, and storage medium. Background Art

[0002] Through negotiation, station devices (STAs) and access points (APs) can communicate within the service period (SP) of the target wake time (TWT) and remain dormant during the rest of the time to save device energy. To ensure the communication of low-latency services, the restricted target wake time (R-TWT) protocol is proposed. During the R-TWT SP, only low-latency services can be transmitted, and other communication services are suspended or postponed during this period.

[0003] With the diversification of communication service demands and the development trend of high-frequency bands, WLAN equipment deployment is becoming increasingly dense, and the phenomenon of overlapping basic service sets (BSSs) is becoming more and more common. The R-TWT mechanism can effectively ensure the priority transmission of low-latency services within the BSS, but the R-TWT SPs within each BSS are independent of each other. In the OBSS scenario, when the R-TWT SPs of different BSSs overlap, the low-latency service transmission of STAs in the OBSS scenario will be interfered with, resulting in low efficiency or even transmission interruption of low-latency services.

[0004] Summary of the Invention

[0005] Embodiments of the present disclosure provide a communication method, device, and storage medium.

[0006] In a first aspect, an embodiment of the present disclosure provides a communication method, applied to a first AP, the method comprising:

[0007] When a first R-TWT schedule exists in the restricted target wake-up time R-TWT schedule established by the first AP, determining a first radio frame, where the first radio frame includes scheduling information of the first R-TWT schedule, and the first radio frame is used to request the second AP to perform R-TWT coordination;

[0008] The R-TWT service time SP of the first R-TWT schedule overlaps with the R-TWT SP of at least one R-TWT schedule established by the second AP, and there is a site device STA located in the first overlapping basic service set OBSS among the members of the first R-TWT schedule, and the first basic service set BSS where the first AP is located and the second BSS where the second AP is located form the first OBSS;

[0009] Send the first wireless frame.

[0010] In a second aspect, an embodiment of the present disclosure provides a communication method, applied to a second AP, the method including:

[0011] receiving a first radio frame, where the first radio frame includes scheduling information of the first R-TWT scheduling, and the first radio frame is used to request the second AP to perform R-TWT coordination;

[0012] In which, the above-mentioned first wireless frame is sent by the first AP when there is a first R-TWT scheduling in the established R-TWT scheduling, the R-TWT SP of the above-mentioned first R-TWT scheduling overlaps with the R-TWT SP of at least one R-TWT scheduling established by the above-mentioned second AP, and there is an STA located in the first OBSS among the members of the above-mentioned first R-TWT scheduling, and the first BSS where the above-mentioned first AP is located and the second BSS where the above-mentioned second AP is located form the above-mentioned first OBSS.

[0013] In a third aspect, an embodiment of the present disclosure provides an AP, including:

[0014] a processing module, configured to, when a first R-TWT schedule exists in the R-TWT schedule established by the first AP, determine a first radio frame, where the first radio frame includes scheduling information of the first R-TWT schedule, and the first radio frame is used to request the second AP to perform R-TWT coordination;

[0015] The R-TWT SP of the first R-TWT scheduling overlaps with the R-TWT SP of at least one R-TWT scheduling established by the second AP, and there is an STA located in the first OBSS among the members of the first R-TWT scheduling, and the first BSS where the first AP is located and the second BSS where the second AP is located form the first OBSS;

[0016] The transceiver module is used to send the first wireless frame.

[0017] In a fourth aspect, an embodiment of the present disclosure provides an AP, including:

[0018] a transceiver module, configured to receive a first radio frame, where the first radio frame includes scheduling information of the first R-TWT scheduling, and the first radio frame is used to request the second AP to perform R-TWT coordination;

[0019] In which, the above-mentioned first wireless frame is sent by the first AP when there is a first R-TWT scheduling in the established R-TWT scheduling, the R-TWT SP of the above-mentioned first R-TWT scheduling overlaps with the R-TWT SP of at least one R-TWT scheduling established by the above-mentioned second AP, and there is an STA located in the first OBSS among the members of the above-mentioned first R-TWT scheduling, and the first BSS where the above-mentioned first AP is located and the second BSS where the above-mentioned second AP is located form the above-mentioned first OBSS.

[0020] In a fifth aspect, an embodiment of the present disclosure provides a communication device, comprising one or more processors;

[0021] Among them, when the above-mentioned communication device serves as the first AP, the above-mentioned processor is used to execute the communication method provided by the first aspect of the embodiment of this disclosure; when the above-mentioned communication device serves as the second AP, the above-mentioned processor is used to execute the communication method provided by the second aspect of the embodiment of this disclosure.

[0022] In a sixth aspect, an embodiment of the present disclosure provides a storage medium storing instructions. When the instructions are executed on a communication device, the communication device executes the communication method provided in the first aspect or the second aspect of the embodiment of the present disclosure.

[0023] In the seventh aspect, an embodiment of the present disclosure proposes a communication system, which includes a first AP and a second AP; wherein the first AP is configured to execute the method described in the first aspect, and the second AP is configured to execute the method described in the second aspect.

[0024] In an eighth aspect, an embodiment of the present disclosure provides a computer program product, which includes a computer program. When the computer program is executed by a processor, it implements the method described in the first aspect, or implements the method described in the second aspect.

[0025] Based on the communication method, device and storage medium provided in the embodiments of the present disclosure, a method for requesting R-TWT coordination between APs can be provided.

[0026] Additional aspects and advantages of the embodiments of the present disclosure will be given in part in the following description, which will become apparent from the following description or be learned through practice of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions of the embodiments of the present disclosure, the following briefly introduces the drawings required for use in the description of the embodiments of the present disclosure. Obviously, the drawings described below are only some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0028] FIG1a is a schematic diagram of the architecture of a communication system according to an embodiment of the present disclosure;

[0029] FIG1b is a schematic diagram of a communication scenario according to an embodiment of the present disclosure;

[0030] FIG2 is an interactive schematic diagram of a communication method according to an embodiment of the present disclosure;

[0031] FIG3 is a flow chart of a communication method according to an embodiment of the present disclosure;

[0032] FIG4 is a second flow chart of a communication method according to an embodiment of the present disclosure;

[0033] FIG5 is a third flow chart of a communication method according to an embodiment of the present disclosure;

[0034] FIG6 is a fourth flow chart of a communication method according to an embodiment of the present disclosure;

[0035] FIG7 is a schematic diagram of a structure of an AP according to an embodiment of the present disclosure;

[0036] FIG8 is a second structural diagram of a STA shown in an embodiment of the present disclosure;

[0037] FIG9 is a schematic structural diagram of a communication device proposed in an embodiment of the present disclosure;

[0038] FIG10 is a schematic diagram of the structure of a chip proposed in an embodiment of the present disclosure. DETAILED DESCRIPTION

[0039] The embodiments of the present disclosure provide a communication method, a device, and a storage medium.

[0040] In a first aspect, an embodiment of the present disclosure provides a communication method, which is applied to a first AP and includes:

[0041] When a first R-TWT schedule exists in the restricted target wake-up time R-TWT schedule established by the first AP, determining a first radio frame, where the first radio frame includes scheduling information of the first R-TWT schedule, and the first radio frame is used to request the second AP to perform R-TWT coordination;

[0042] The R-TWT service time SP of the first R-TWT schedule overlaps with the R-TWT SP of at least one R-TWT schedule established by the second AP, and there is a site device STA located in the first overlapping basic service set OBSS among the members of the first R-TWT schedule, and the first basic service set BSS where the first AP is located and the second BSS where the second AP is located form the first OBSS;

[0043] Send the first wireless frame.

[0044] In the above embodiment, when the first BSS where the first AP is located and the second BSS where the second AP is located form a first OBSS, and the R-TWT SP of the R-TWT scheduling established by the STA in the first OBSS and the first AP overlaps with at least one R-TWT SP of the R-TWT scheduling established by the second AP, the second AP can request the second AP to perform R-TWT coordination through the first wireless frame, thereby avoiding interference with the low-latency service transmission of the STA in the OBSS and improving communication efficiency.

[0045] In conjunction with some embodiments of the first aspect, in some embodiments, the first radio frame includes a first action field, and the first action field includes at least one of the following:

[0046] A first category field, where the first category field is used to indicate a frame type of the first radio frame;

[0047] A first identification field, where the first identification field is used to indicate a functional type of the first radio frame;

[0048] A first conversation token field, where the first conversation token field is used to identify the session in which the first radio frame participates;

[0049] The first target wake-up time element includes the scheduling information of the first R-TWT scheduling.

[0050] In the above embodiment, the first AP can indicate the frame type, function type, session identifier of the first wireless frame and scheduling information of the first R-TWT scheduling by reusing the information field in the action field, which is beneficial to saving signaling resources.

[0051] In conjunction with some embodiments of the first aspect, in some embodiments, the first target wake-up time element includes a first broadcast target wake-up time parameter set field corresponding to the first R-TWT schedule;

[0052] The first broadcast target wake-up time parameter set includes at least one of the following:

[0053] a second identification field, wherein the second identification field requests R-TWT coordination for the first R-TWT scheduling through a first value;

[0054] A third identification field, wherein the third identification field indicates that the first R-TWT scheduling supports adjustment through the second value; the third identification field indicates that the first R-TWT scheduling does not support adjustment through the third value;

[0055] The fourth identification field is used to indicate the identification information or BSS color of the first BSS.

[0056] In the above embodiment, the first AP can further save signaling resources when it indicates whether the first R-TWT scheduling supports adjustment and other information by broadcasting the information field in the target wake-up time parameter set field.

[0057] In conjunction with some embodiments of the first aspect, in some embodiments, the above method further includes:

[0058] receiving a second radio frame, where the second radio frame includes at least one of scheduling information of a third R-TWT schedule or scheduling information of a fourth R-TWT schedule;

[0059] The third R-TWT scheduling includes the first R-TWT scheduling or the adjusted first R-TWT scheduling, and the fourth R-TWT scheduling includes the second R-TWT scheduling or the adjusted second R-TWT scheduling; the R-TWT SP of the first R-TWT scheduling overlaps with the R-TWT SP of the second R-TWT scheduling, and the second R-TWT scheduling is established by the second AP;

[0060] Among them, when at least one of the above-mentioned third R-TWT scheduling and the above-mentioned fourth R-TWT scheduling is the adjusted R-TWT scheduling, the R-TWT SP of the above-mentioned third R-TWT scheduling and the R-TWT SP of the above-mentioned fourth R-TWT scheduling do not overlap.

[0061] In the above embodiment, after completing the R-TWT coordination, the second AP can carry the scheduling information of the coordinated R-TWT scheduling when responding to the first wireless frame through the second wireless frame, which is beneficial for the first AP to perform low-latency service transmission according to the scheduling information of the coordinated R-TWT scheduling, and is beneficial to avoid interference with the low-latency service transmission of the STA in the OBSS, thereby improving communication quality and efficiency.

[0062] In conjunction with some embodiments of the first aspect, in some embodiments, the second radio frame includes a second action field, and the second action field includes at least one of the following:

[0063] A second category field, where the second category field is used to indicate a frame type of the second radio frame;

[0064] A fifth identification field, wherein the second field is used to indicate a functional type of the second radio frame;

[0065] A second conversation token field, where the second conversation token field is used to identify the session in which the second radio frame participates;

[0066] The second target wake-up time element includes at least one item of the scheduling information of the third R-TWT scheduling or the scheduling information of the fourth R-TWT scheduling.

[0067] In the above embodiment, the second AP can indicate the frame type, function type, session identifier and scheduling information of the adjusted R-TWT scheduling of the second wireless frame by reusing the information field in the action field, which is beneficial to saving signaling resources.

[0068] In conjunction with some embodiments of the first aspect, in some embodiments, the scheduling information of the first R-TWT scheduling, the third R-TWT scheduling, and the fourth R-TWT scheduling includes at least one of the following:

[0069] The service type of the low-latency service transmitted within the corresponding R-TWT SP;

[0070] The start time and duration of the corresponding R-TWT SP;

[0071] The identification information of the BSS where the AP is located.

[0072] In conjunction with some embodiments of the first aspect, in some embodiments, the second target wake-up time element includes at least one of the following:

[0073] The second broadcast target wake-up time parameter set field corresponding to the third R-TWT scheduling;

[0074] The third broadcast target wake-up time parameter set field corresponding to the fourth R-TWT scheduling;

[0075] The second broadcast target wake-up time parameter set field and the third broadcast target wake-up time parameter set field include at least one of the following:

[0076] A sixth identification field, wherein the sixth identification field responds to the R-TWT coordination request using a fourth value;

[0077] a seventh identification field, wherein the seventh identification field indicates, through the fifth value, that the first R-TWT schedule is accepted and no adjustment is made to the first R-TWT schedule, and indicates, through the sixth value, that the first R-TWT schedule is adjusted and replaced with the adjusted first R-TWT schedule;

[0078] The eighth identification field is used to indicate the identification information or BSS color of the BSS where the corresponding AP is located.

[0079] In the above embodiment, the second AP can further save signaling resources when it indicates whether to adjust the first R-TWT scheduling and other information by broadcasting the information field in the target wake-up time parameter set field.

[0080] In conjunction with some embodiments of the first aspect, in some embodiments, the above method further includes:

[0081] When the priority of the first low-latency service is consistent with the priority of the second low-latency service, spatial multiplexing is used to transmit the low-latency service within the R-TWT SP scheduled by the third R-TWT.

[0082] When the priority of the first low-latency service is higher than the priority of the second low-latency service, the low-latency service is transmitted in the R-TWT SP of the third R-TWT scheduling, and the low-latency service is not transmitted in the R-TWT SP of the fourth R-TWT scheduling;

[0083] When the priority of the first low-latency service is lower than the priority of the second low-latency service, the low-latency service is transmitted in the R-TWT SP of the third R-TWT scheduling, and the low-latency service is not transmitted in the R-TWT SP of the fourth R-TWT scheduling; or, spatial multiplexing is used to transmit the low-latency service in the R-TWT SP of the third R-TWT scheduling;

[0084] Among them, the above-mentioned first low-latency service is a low-latency service transmitted within the R-TWT SP scheduled by the above-mentioned first R-TWT, and the above-mentioned second low-latency service is a low-latency service transmitted within the R-TWT SP scheduled by the above-mentioned second R-TWT.

[0085] In the above embodiment, when the priority of the first low-latency service is consistent with the priority of the second low-latency service, since the second AP does not adjust the first R-TWT scheduling and the second R-TWT scheduling, the first AP can use spatial multiplexing within the R-TWTSP of the third R-TWT scheduling to transmit the low-latency service, while ensuring the priority transmission of the first low-latency service and the second low-latency service, avoiding interference with the transmission of the second low-latency service when transmitting the first low-latency service.

[0086] When the priority of the first low-latency service is higher than the priority of the second low-latency service, since the second AP ensures the priority transmission of the first low-latency service by adjusting the second R-TWT scheduling, the first AP may not transmit the low-latency service within the R-TWT SP of the fourth R-TWT scheduling, but transmit the first low-latency service within the R-TWT SP of the third R-TWT scheduling, thereby avoiding interference with the transmission of the second low-latency service.

[0087] When the priority of the first low-latency service is lower than the priority of the second low-latency service, since the second AP adjusts the first R-TWT scheduling when the first R-TWT scheduling supports adjustment, and adjusts the second R-TWT scheduling when the first R-TWT scheduling does not support adjustment, or does not adjust any R-TWT scheduling, the first AP may not transmit the low-latency service within the R-TWT SP of the fourth R-TWT scheduling, but transmit the first low-latency service within the R-TWT SP of the third R-TWT scheduling, thereby avoiding interference with the transmission of the second low-latency service, or adopting spatial multiplexing to transmit the low-latency service within the R-TWT SP of the third R-TWT scheduling, so as to ensure priority transmission of the first low-latency service and the second low-latency service, thereby avoiding interference with the transmission of the second low-latency service when transmitting the first low-latency service.

[0088] In a second aspect, an embodiment of the present disclosure provides a communication method, which is applied to a second AP and includes:

[0089] receiving a first radio frame, where the first radio frame includes scheduling information of the first R-TWT scheduling, and the first radio frame is used to request the second AP to perform R-TWT coordination;

[0090] In which, the above-mentioned first wireless frame is sent by the first AP when there is a first R-TWT scheduling in the established R-TWT scheduling, the R-TWT SP of the above-mentioned first R-TWT scheduling overlaps with the R-TWT SP of at least one R-TWT scheduling established by the above-mentioned second AP, and there is an STA located in the first OBSS among the members of the above-mentioned first R-TWT scheduling, and the first BSS where the above-mentioned first AP is located and the second BSS where the above-mentioned second AP is located form the above-mentioned first OBSS.

[0091] In the above embodiment, when the first BSS where the first AP is located and the second BSS where the second AP is located form a first OBSS, and the R-TWT SP of the R-TWT scheduling established by the STA in the first OBSS and the first AP overlaps with at least one R-TWT SP of the R-TWT scheduling established by the second AP, the second AP can request the second AP to perform R-TWT coordination through the first wireless frame, thereby avoiding interference with the low-latency service transmission of the STA in the OBSS and improving communication efficiency.

[0092] In conjunction with some embodiments of the second aspect, in some embodiments, the first radio frame includes a first action field, and the first action field includes at least one of the following:

[0093] A first category field, where the first category field is used to indicate a frame type of the first radio frame;

[0094] A first identification field, where the first identification field is used to indicate a functional type of the first radio frame;

[0095] A first conversation token field, where the first conversation token field is used to identify the session in which the first radio frame participates;

[0096] The first target wake-up time element includes the scheduling information of the first R-TWT scheduling.

[0097] In the above embodiment, the first AP can indicate the frame type, function type, session identifier of the first wireless frame and scheduling information of the first R-TWT scheduling by reusing the information field in the action field, which is beneficial to saving signaling resources.

[0098] In conjunction with some embodiments of the second aspect, in some embodiments, the first target wake-up time element includes a first broadcast target wake-up time parameter set field corresponding to the first R-TWT schedule;

[0099] The first broadcast target wake-up time parameter set includes at least one of the following:

[0100] a second identification field, wherein the second identification field requests R-TWT coordination for the first R-TWT scheduling through a first value;

[0101] A third identification field, wherein the third identification field indicates that the first R-TWT scheduling supports adjustment through the second value; the third identification field indicates that the first R-TWT scheduling does not support adjustment through the third value;

[0102] The fourth identification field is used to indicate the identification information or BSS color of the first BSS.

[0103] In the above embodiment, the first AP can further save signaling resources when it indicates whether the first R-TWT scheduling supports adjustment and other information by broadcasting the information field in the target wake-up time parameter set field.

[0104] In conjunction with some embodiments of the second aspect, in some embodiments, the above method further includes at least one of the following:

[0105] When the priority of the first low-latency service is consistent with the priority of the second low-latency service, the first R-TWT scheduling and the second R-TWT scheduling are not adjusted, and spatial multiplexing is used within the R-TWT SP of the second R-TWT scheduling to transmit the low-latency service;

[0106] When the priority of the first low-latency service is higher than the priority of the second low-latency service, the second R-TWT scheduling is adjusted, and the low-latency service is not transmitted within the R-TWT SP of the first R-TWT scheduling, and the low-latency service is transmitted within the R-TWT SP of the adjusted second R-TWT scheduling;

[0107] When the priority of the first low-latency service is lower than the priority of the second low-latency service, and the first R-TWT scheduling supports adjustment, the first R-TWT scheduling is adjusted, and the low-latency service is not transmitted in the R-TWT SP of the adjusted first R-TWT scheduling, and the low-latency service is transmitted in the R-TWT SP of the second R-TWT scheduling;

[0108] When the priority of the first low-latency service is lower than the priority of the second low-latency service, and the first R-TWT scheduling does not support adjustment, the second R-TWT scheduling is adjusted, and the low-latency service is not transmitted in the R-TWT SP of the first R-TWT scheduling, and the low-latency service is transmitted in the R-TWT SP of the adjusted second R-TWT scheduling; or, the first R-TWT scheduling and the second R-TWT scheduling are not adjusted, and spatial multiplexing is used to transmit the low-latency service in the R-TWT SP of the second R-TWT scheduling;

[0109] The first low-latency service is a low-latency service transmitted within the R-TWT SP scheduled by the first R-TWT, and the second low-latency service is a low-latency service transmitted within the R-TWT SP scheduled by the second R-TWT;

[0110] Among them, the R-TWT SP of the above-mentioned first R-TWT scheduling overlaps with the R-TWT SP of the above-mentioned second R-TWT scheduling, and the above-mentioned second R-TWT scheduling is established by the above-mentioned second AP.

[0111] In the above embodiment, when the priority of the first low-latency service is consistent with the priority of the second low-latency service, the second AP may not adjust the first R-TWT scheduling and the second R-TWT scheduling, and adopt spatial multiplexing to transmit the low-latency service within the R-TWT SP of the second R-TWT scheduling. While ensuring the priority transmission of the first low-latency service and the second low-latency service, it can avoid interference with the transmission of the first low-latency service when transmitting the second low-latency service.

[0112] When the priority of the first low-latency service is higher than the priority of the second low-latency service, the second AP ensures the priority transmission of the first low-latency service by adjusting the second R-TWT scheduling, and does not transmit the low-latency service within the R-TWT SP of the first R-TWT scheduling, but transmits the second low-latency service within the R-TWT SP of the adjusted second R-TWT scheduling, thereby avoiding interference with the transmission of the first low-latency service.

[0113] When the priority of the first low-latency service is lower than the priority of the second low-latency service, if the first R-TWT scheduling supports adjustment, the second AP can adjust the first R-TWT scheduling, so that the second AP does not transmit the low-latency service within the R-TWT SP of the adjusted first R-TWT scheduling but transmits the low-latency service within the R-TWT SP of the second R-TWT scheduling, thereby ensuring the priority transmission of the second low-latency service and avoiding interference between the transmission of the first low-latency service and the transmission of the second low-latency service. When the first R-TWT scheduling does not support adjustment, the second AP can adjust the second R-TWT scheduling and transmit the second low-latency service within the R-TWT SP of the second R-TWT scheduling and no longer transmit the low-latency service within the R-TWT SP of the first R-TWT scheduling to ensure that the transmission of the first low-latency service and the transmission of the second low-latency service do not interfere with each other, or adopt spatial multiplexing to transmit low-latency services within the R-TWT SP of the second R-TWT scheduling to ensure priority transmission of the first low-latency service and the second low-latency service, so as to avoid interference with the transmission of the first low-latency service when transmitting the second low-latency service.

[0114] In conjunction with some embodiments of the second aspect, in some embodiments, the above method further includes:

[0115] sending a second radio frame, where the second radio frame includes at least one of scheduling information of the third R-TWT scheduling or scheduling information of the fourth R-TWT scheduling;

[0116] Among them, the above-mentioned third R-TWT scheduling includes the above-mentioned first R-TWT scheduling or the adjusted first R-TWT scheduling, the above-mentioned fourth R-TWT scheduling includes the second R-TWT scheduling or the adjusted second R-TWT scheduling, and when at least one of the above-mentioned third R-TWT scheduling and the above-mentioned fourth R-TWT scheduling is the adjusted R-TWT scheduling, the R-TWT SP of the above-mentioned third R-TWT scheduling and the R-TWT SP of the above-mentioned fourth R-TWT scheduling do not overlap.

[0117] In the above embodiment, after completing the R-TWT coordination, the second AP can carry the scheduling information of the coordinated R-TWT scheduling when responding to the first wireless frame through the second wireless frame, which is beneficial for the first AP to perform low-latency service transmission according to the scheduling information of the coordinated R-TWT scheduling, and is beneficial to avoid interference with the low-latency service transmission of the STA in the OBSS, thereby improving communication quality and efficiency.

[0118] In conjunction with some embodiments of the second aspect, in some embodiments, the second radio frame includes a second action field, and the second action field includes at least one of the following:

[0119] A second category field, where the second category field is used to indicate a frame type of the second radio frame;

[0120] A fifth identification field, wherein the second identification field is used to indicate a functional type of the second radio frame;

[0121] A second conversation token field, where the second conversation token field is used to identify the session in which the second radio frame participates;

[0122] The second target wake-up time element, the above-mentioned first target wake-up time element includes at least one item of the scheduling information of the above-mentioned third R-TWT scheduling or the scheduling information of the fourth R-TWT scheduling.

[0123] In the above embodiment, the second AP can indicate the frame type, function type, session identifier and scheduling information of the adjusted R-TWT scheduling of the second wireless frame by reusing the information field in the action field, which is beneficial to saving signaling resources.

[0124] In conjunction with some embodiments of the second aspect, in some embodiments, the scheduling information of the first R-TWT scheduling, the third R-TWT scheduling, and the fourth R-TWT scheduling includes at least one of the following:

[0125] The service type of the low-latency service transmitted within the corresponding R-TWT SP;

[0126] The start time and duration of the corresponding R-TWT SP;

[0127] The identification information of the BSS where the AP is located.

[0128] In conjunction with some embodiments of the second aspect, in some embodiments, the second target wake-up time element includes at least one of the following:

[0129] The second broadcast target wake-up time parameter set field corresponding to the third R-TWT scheduling;

[0130] The third broadcast target wake-up time parameter set field corresponding to the fourth R-TWT scheduling;

[0131] The second broadcast target wake-up time parameter set field and the third broadcast target wake-up time parameter set field include at least one of the following:

[0132] a sixth identification field, where when the identification value of the sixth identification field is the fourth value, the sixth identification field is used to indicate a response to the R-TWT coordination request of the first R-TWT scheduling;

[0133] a seventh identification field, when the identification value of the seventh identification field is the fifth value, the seventh identification field is used to indicate that the first R-TWT scheduling is accepted and the first R-TWT scheduling is not adjusted; when the identification value of the seventh identification field is the sixth value, the seventh identification field is used to indicate that the first R-TWT scheduling is adjusted and the first R-TWT scheduling is replaced with the adjusted first R-TWT scheduling;

[0134] The eighth identification field is used to indicate the identification information or BSS color of the BSS where the corresponding AP is located.

[0135] In the above embodiment, the second AP can further save signaling resources when it indicates whether to adjust the first R-TWT scheduling and other information by broadcasting the information field in the target wake-up time parameter set field.

[0136] In a third aspect, an embodiment of the present disclosure provides an AP, including:

[0137] a processing module, configured to, when a first R-TWT schedule exists in the R-TWT schedule established by the first AP, determine a first radio frame, where the first radio frame includes scheduling information of the first R-TWT schedule, and the first radio frame is used to request the second AP to perform R-TWT coordination;

[0138] The R-TWT SP of the first R-TWT scheduling overlaps with the R-TWT SP of at least one R-TWT scheduling established by the second AP, and there is an STA located in the first OBSS among the members of the first R-TWT scheduling, and the first BSS where the first AP is located and the second BSS where the second AP is located form the first OBSS;

[0139] The transceiver module is used to send the first wireless frame.

[0140] In a fourth aspect, an embodiment of the present disclosure provides an AP, including:

[0141] a transceiver module, configured to receive a first radio frame, where the first radio frame includes scheduling information of the first R-TWT scheduling, and the first radio frame is used to request the second AP to perform R-TWT coordination;

[0142] In which, the above-mentioned first wireless frame is sent by the first AP when there is a first R-TWT scheduling in the established R-TWT scheduling, the R-TWT SP of the above-mentioned first R-TWT scheduling overlaps with the R-TWT SP of at least one R-TWT scheduling established by the above-mentioned second AP, and there is an STA located in the first OBSS among the members of the above-mentioned first R-TWT scheduling, and the first BSS where the above-mentioned first AP is located and the second BSS where the above-mentioned second AP is located form the above-mentioned first OBSS.

[0143] In a fifth aspect, an embodiment of the present disclosure provides a communication device, comprising one or more processors;

[0144] In which, when the above-mentioned communication device acts as a first AP, the above-mentioned processor executes the communication method provided by the first aspect and the optional implementation method of the first aspect, or when it acts as a second AP, the above-mentioned processor executes the communication method provided by the second aspect and the optional implementation method of the second aspect.

[0145] In a sixth aspect, an embodiment of the present disclosure proposes a storage medium, which stores instructions. When the instructions are executed on a communication device, the communication device executes the method described in the first aspect, the second aspect, the optional implementation of the first aspect, and the optional implementation of the second aspect.

[0146] In a seventh aspect, an embodiment of the present disclosure proposes a program product. When the program product is executed by a communication device, the communication device executes the method described in the first aspect, the second aspect, the optional implementation of the first aspect, and the optional implementation of the second aspect.

[0147] In an eighth aspect, an embodiment of the present disclosure proposes a computer program, which, when executed on a computer, enables the computer to execute the method described in the first aspect, the second aspect, the optional implementation of the first aspect, and the optional implementation of the second aspect.

[0148] In a ninth aspect, an embodiment of the present disclosure provides a chip or a chip system, wherein the chip or chip system includes a processing circuit configured to execute the method described in the first aspect, the second aspect, the optional embodiment of the first aspect, and the optional embodiment of the second aspect.

[0149] In the tenth aspect, an embodiment of the present disclosure proposes a communication system, which includes a first AP and a second AP; wherein the first AP is configured to execute the method described in the first aspect and the optional implementation method of the first aspect, and the second AP is configured to execute the method described in the second aspect and the optional implementation method of the second aspect.

[0150] It is understandable that the first AP, second AP, communication system, communication device, storage medium, program product, computer program, chip, or chip system described above are all used to perform the methods proposed in the embodiments of the present disclosure. Therefore, the beneficial effects that can be achieved can refer to the beneficial effects of the corresponding methods and will not be repeated here.

[0151] The present disclosure provides a communication method, device, and storage medium. In some embodiments, the terms "communication method" and "information processing method" are interchangeable, the terms "communication device" and "information processing device" are interchangeable, and the terms "information processing system" and "communication system" are interchangeable.

[0152] The embodiments of the present disclosure are not exhaustive and are merely illustrative of some embodiments, and are not intended to be a specific limitation on the scope of protection of the present disclosure. In the absence of contradiction, each step in a certain embodiment can be implemented as an independent embodiment, and the steps can be arbitrarily combined. For example, a solution after removing some steps in a certain embodiment can also be implemented as an independent embodiment, and the order of the steps in a certain embodiment can be arbitrarily exchanged. In addition, the optional implementation methods in a certain embodiment can be arbitrarily combined; in addition, the embodiments can be arbitrarily combined. For example, some or all steps of different embodiments can be arbitrarily combined, and a certain embodiment can be arbitrarily combined with the optional implementation methods of other embodiments.

[0153] In each embodiment of the present disclosure, unless otherwise specified or provided for by logic, the terms and / or descriptions between the embodiments are consistent and can be referenced by each other. The technical features in different embodiments can be combined to form a new embodiment based on their inherent logical relationships.

[0154] The terms used in the embodiments of the present disclosure are only for the purpose of describing specific embodiments and are not intended to limit the present disclosure.

[0155] In the embodiments of the present disclosure, unless otherwise specified, elements expressed in the singular, such as "a", "an", "the", "above", "above", "the", etc., may mean "one and only one", or "one or more", "at least one", etc. For example, when using articles such as "a", "an", "the" in English in translation, the noun following the article may be understood as a singular expression or a plural expression.

[0156] In the embodiments of the present disclosure, “plurality” refers to two or more.

[0157] In some embodiments, the terms "at least one," "one or more," "a plurality of," "multiple," etc. may be used interchangeably.

[0158] In some embodiments, descriptions such as "at least one of A and B," "A and / or B," "A in one case, B in another case," or "in response to one case A, in response to another case B" may include the following technical solutions depending on the situation: in some embodiments, A (A is executed independently of B); in some embodiments, B (B is executed independently of A); in some embodiments, execution is selected from A and B (A and B are selectively executed); and in some embodiments, A and B (both A and B are executed). The above is also applicable when there are more branches such as A, B, and C.

[0159] In some embodiments, "A or B" and other descriptions may include the following technical solutions depending on the situation: in some embodiments, A (A is executed independently of B); in some embodiments, B (B is executed independently of A); in some embodiments, execution is selected from A and B (A and B are selectively executed). The above is also applicable when there are more branches such as A, B, C, etc.

[0160] The prefixes such as "first" and "second" in the embodiments of the present disclosure are only used to distinguish different description objects and do not constitute any restriction on the position, order, priority, quantity or content of the description objects. For the statement of the description object, please refer to the description in the context of the claims or embodiments, and no unnecessary restriction should be constituted due to the use of prefixes. For example, if the description object is a "field", the ordinal number before the "field" in the "first field" and the "second field" does not limit the position or order between the "fields". "First" and "second" do not limit whether the "fields" they modify are in the same message, nor do they limit the order of the "first field" and the "second field". For another example, if the description object is a "level", the ordinal number before the "level" in the "first level" and the "second level" does not limit the priority between the "levels". For another example, the number of description objects is not limited by the ordinal number and can be one or more. Taking "first device" as an example, the number of "devices" can be one or more. In addition, the objects modified by different prefixes can be the same or different. For example, if the description object is "device", then the "first device" and the "second device" can be the same device or different devices, and their types can be the same or different; for another example, if the description object is "information", then the "first information" and the "second information" can be the same information or different information, and their contents can be the same or different.

[0161] In some embodiments, “including A,” “comprising A,” “used to indicate A,” and “carrying A” can be interpreted as directly carrying A or indirectly indicating A.

[0162] In some embodiments, terms such as "in response to...", "in response to determining...", "in the case of...", "at the time of...", "when...", "if...", "if...", etc. can be used interchangeably.

[0163] In some embodiments, terms such as "greater than", "greater than or equal to", "not less than", "more than", "more than or equal to", "not less than", "higher than", "higher than or equal to", "not less than", and "above" can be replaced with each other, and terms such as "less than", "less than or equal to", "not greater than", "less than", "less than or equal to", "not more than", "lower than", "lower than or equal to", "not higher than", and "below" can be replaced with each other.

[0164] In some embodiments, obtaining data, information, etc. may comply with the laws and regulations of the country where the data is obtained.

[0165] In some embodiments, data, information, etc. may be obtained with the user's consent.

[0166] In addition, each element, each row, or each column in the table of the embodiment of the present disclosure can be implemented as an independent embodiment, and the combination of any elements, any rows, and any columns can also be implemented as an independent embodiment.

[0167] Through negotiation, station devices (STAs) and access points (APs) can communicate within the service period (SP) of the target wake time (TWT) and remain dormant during the rest of the time to save device energy. To ensure the communication of low-latency services, the restricted target wake time (R-TWT) protocol is proposed. During the R-TWT SP, only low-latency services can be transmitted, and other communication services are suspended or postponed during this period.

[0168] With the diversification of communication service demands and the development trend of high-frequency bands, WLAN equipment deployment is becoming increasingly dense, and the phenomenon of overlapping basic service sets (BSSs) is becoming more and more common. The R-TWT mechanism can effectively ensure the priority transmission of low-latency services within the BSS, but the R-TWT SPs within each BSS are independent of each other. In the OBSS scenario, when the R-TWT SPs of different BSSs overlap, the low-latency service transmission of STAs in the OBSS scenario will be interfered with, resulting in low efficiency or even transmission interruption of low-latency services.

[0169] R-TWT coordination among multiple APs can avoid interference with low-latency service transmission in OBSS scenarios and improve the transmission efficiency of low-latency services. However, there are many problems in how to achieve R-TWT coordination among multiple APs.

[0170] For example, AP1 and AP2 can understand the R-TWT schedule within each other's BSS by monitoring management frames such as Beacon frames sent by each other. When there is R-TWT SP overlap, AP1 and AP2 can coordinate through the R-TWT coordination mechanism between multiple APs to avoid overlapping R-TWT SPs.

[0171] However, when the R-TWT SP of R-TWT scheduling A established in BSS1 overlaps with the R-TWT SP of R-TWT scheduling B established in BSS2, if the member STAs of R-TWT scheduling A in BSS1 and the member STAs of R-TWT scheduling B in BSS2 are not located in the OBSS scenario formed by BSS1 and BSS2, even if there is an overlap of R-TWT SPs between R-TWT scheduling A and R-TWT scheduling B, the low-latency service transmissions in BSS1 and BSS2 within the overlapping SPs will not interfere with each other. At this time, there is no need for R-TWT coordination between AP1 and AP2, and blindly initiating R-TWT coordination will bring additional signaling overhead and waste of communication resources. Therefore, how to achieve efficient R-TWT coordination between multiple APs requires further research.

[0172] To address the above issues, the following will further describe the technical solutions in the embodiments of the present disclosure in a clear and complete manner with reference to the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present disclosure and do not constitute all the embodiments. All other embodiments obtained by persons of ordinary skill in the art based on the embodiments of the present disclosure without creative effort shall fall within the scope of protection of the present disclosure.

[0173] FIG1a is a schematic diagram showing the architecture of a communication system according to an embodiment of the present disclosure.

[0174] As shown in FIG. 1 a , a communication system 100 includes an AP 101 and an AP 102 .

[0175] Among them, AP101 and AP102 can be independent APs or subordinate APs of AP MLD.

[0176] 1b , when AP101 serves as the first AP, it can communicate with STA1-2 and STA1-1 in BSS1. When AP102 serves as the second AP, it can communicate with STA1-1, STA2-1, and STA2-2 in BSS2.

[0177] Among them, BSS1 and BSS2 form OBSS.

[0178] Among them, when the R-TWT SP of the R-TWT schedule established with STA1-1 overlaps with at least one R-TWT SP of the R-TWT schedule established by AP102 (the second AP), AP101 can request AP102 to perform R-TWT coordination through the first wireless frame.

[0179] In some embodiments, the AP 101 and the first STA 102 may be terminal devices or network devices with Wi-Fi chips.

[0180] It can be understood that the communication system described in the embodiment of the present disclosure is for the purpose of more clearly illustrating the technical solution of the embodiment of the present disclosure, and does not constitute a limitation on the technical solution proposed in the embodiment of the present disclosure. Ordinary technicians in this field can know that with the evolution of the system architecture and the emergence of new business scenarios, the technical solution proposed in the embodiment of the present disclosure is also applicable to similar technical problems.

[0181] The following embodiments of the present disclosure may be applied to the communication system 100 shown in FIG1 , or a portion thereof, but are not limited thereto. The entities shown in FIG1 are illustrative only. The communication system may include all or a portion of the entities shown in FIG1 , or may include other entities outside of FIG1 . The number and form of the entities are arbitrary, and the entities may be physical or virtual. The link relationships between the entities are illustrative only. The entities may be linked or unlinked, and the links may be of any type, including direct or indirect, wired or wireless.

[0182] The various embodiments of the present disclosure may be applied to wireless local area networks (WLANs), such as IEEE 802.11 system standards, such as 802.11a / b / g, 802.11n, 802.11ac, 802.11ax, 802.11bf, 802.11be, or their successors, such as 802.11bn. Alternatively, the various embodiments of the present disclosure may also be applied to wireless local area network systems, such as Internet of Things (IoT) networks or Vehicle to X (V2X) networks. Of course, the embodiments of the present disclosure can also be applied to other possible communication systems, such as long term evolution (LTE) system, LTE frequency division duplex (FDD) system, LTE time division duplex (TDD) system, universal mobile telecommunication system (UMTS), world-wide interoperability for microwave access (WiMAX) communication system, and fifth generation (5G) communication system.

[0183] FIG2 is an interactive diagram of a communication method according to an embodiment of the present disclosure. The communication method shown in FIG2 includes:

[0184] S201, when there is a first R-TWT schedule in the R-TWT schedule established by the first AP, the first AP determines a first wireless frame, the first wireless frame includes scheduling information of the first R-TWT schedule, and the first wireless frame is used to request the second AP to perform R-TWT coordination.

[0185] In some embodiments, the R-TWT SP of the first R-TWT schedule overlaps with the R-TWT SP of at least one R-TWT schedule established by the second AP, and a STA located in the first OBSS exists among the members of the first R-TWT schedule.

[0186] The first OBSS is an OBSS formed by a first BSS where the first AP is located and a second BSS where the second AP is located.

[0187] That is, for the first AP, when at least one STA located in the first OBSS establishes an R-TWT schedule with the first AP, and the R-TWT SP of the R-TWT schedule overlaps with the R-TWT SP of at least one R-TWT schedule established by the second AP, the first AP determines a first radio frame. At this time, the first radio frame includes scheduling information of the R-TWT schedule, and the first radio frame is used to request the second AP to perform R-TWT coordination for the R-TWT schedule.

[0188] As an example, the first BSS where the first AP is located and the second BSS where the second AP is located form a first OBSS, and the R-TWT SP of the R-TWT scheduling established between the first STA in the first OBSS and the first AP overlaps with the R-TWT SP of at least one R-TWT scheduling established between the second AP and the STA in the second BSS. The first AP determines a first wireless frame, and the first wireless frame includes scheduling information of the R-TWT scheduling established between the first AP and the first STA. The first wireless frame is used to request the second AP to perform R-TWT coordination for the R-TWT scheduling established between the first AP and the first STA.

[0189] Among them, the first AP can be called a restricted target wake time coordination initiator (R-TWT Coordination Initiator), and the second AP can be called a restricted target wake time responder (R-TWT Coordination Responder).

[0190] In some embodiments, the first wireless frame includes a first action field, which may include at least one of a first category field, a first identification field, a first dialog token field, or a first target wakeup time (TWT) element.

[0191] Specifically, the first category field is used to indicate the frame type of the first radio frame.

[0192] The first category field indicates that the first radio frame is an ultra high reliability (UHR) action frame through the seventh value, and indicates that the first radio frame is a protected ultra high reliability action frame through the eighth value. Alternatively, the first category field indicates that the first radio frame is a multi-AP coordination action frame through the ninth value, and indicates that the first radio frame is a protected multi-AP coordination action frame through the tenth value.

[0193] Among them, the seventh value and the eighth value are different values, and the ninth value and the tenth value are different values.

[0194] The seventh value and the ninth value may be the same value, and the eighth value and the tenth value may be the same value. Alternatively, the seventh value and the tenth value may be the same value, and the eighth value and the ninth value may be the same value.

[0195] As an example, when the identification value of the first category field is 38, it indicates that the first radio frame is a UHR Action frame; when the identification value of the first category field is 39, it indicates that the first radio frame is a Protected UHR Action frame. Alternatively, when the identification value of the first category field is 38, it indicates that the first radio frame is an M-AP Coordination Action frame; when the identification value of the first category field is 39, it indicates that the first radio frame is a Protected M-AP Coordination Action frame.

[0196] Specifically, the first identification field is used to indicate the function type of the first radio frame. When the first radio frame includes the first category field, the first identification field is used to indicate the specific function type of the first radio frame under the frame type indicated by the first category field.

[0197] Among them, when the identification value of the first identification field is the eleventh value, it is used to indicate that the first wireless frame is a UHR R-TWT coordination request frame; when the identification value of the first identification field is the twelfth value, it is used to indicate that the first wireless frame is an M-AP R-TWT coordination request frame.

[0198] Among them, the eleventh value and the twelfth value are different values.

[0199] As an example, the first wireless frame includes a first category field and a first identification field. When the first category field indicates that the first wireless frame is a UHR Action frame through the seventh value, the first identification field indicates that the first wireless frame is a UHR R-TWT coordination request frame through the eleventh value; when the first category field indicates that the first wireless frame is an M-AP Coordination Actio frame through the tenth value, the first identification field indicates that the first wireless frame is an M-AP R-TWT coordination request frame through the twelfth value.

[0200] Specifically, the first dialogue token field is used to identify the session in which the first wireless frame participates, such as used to identify the R-TWT coordination dialogue.

[0201] Specifically, the first TWT element includes scheduling information of the first R-TWT scheduling.

[0202] In some embodiments, the first wireless frame includes a first TWT element, and the first TWT element includes a first broadcast target wake-up time parameter set (Broadcast TWT Parameter Set) field corresponding to the first R-TWT scheduling.

[0203] The first broadcast target wake-up time parameter set field includes at least one of the second identification field, the third identification field, and the fourth identification field.

[0204] Specifically, the second identification field indicates a request for R-TWT coordination for the first R-TWT scheduling through a first value.

[0205] The first value may be 1, which is not limited here.

[0206] The second identification field may be a request type (Request Type) field.

[0207] Specifically, the third identification field indicates that the first R-TWT scheduling supports adjustment through the second value, and indicates that the first R-TWT scheduling does not support adjustment through the third value.

[0208] The second value and the third value are different values. For example, the second value may be 1 and the third value may be 0, which is not limited here.

[0209] Among them, the third identification field can be a target wake-up time establishment command (TWT Setup Command) field.

[0210] Specifically, the fourth identification field is used to identify the first BSS where the first AP is located, such as used to indicate identification information (such as BSS ID) or color information (BSS Color) of the first BSS.

[0211] It should be noted that when there are multiple first R-TWT schedules in the R-TWT schedule established by the first AP, the first wireless frame includes a first TWT element, and the first TWT element includes a first broadcast target wake-up time parameter set domain corresponding to each first R-TWT schedule.

[0212] Among them, each first broadcast target wake-up time parameter set domain corresponds to a first R-TWT schedule.

[0213] Among them, the second identification field in each first broadcast target wake-up time parameter set field indicates a request for R-TWT coordination for the corresponding first R-TWT scheduling through a first value.

[0214] Among them, the third identification field in each first broadcast target wake-up time parameter set field indicates that the corresponding first R-TWT scheduling supports adjustment through the second value, and indicates that the corresponding first R-TWT scheduling does not support adjustment through the third value.

[0215] The fourth identification field in each first broadcast target wake-up time parameter set field is used to identify the first BSS where the first AP is located, such as identification information (such as BSS ID) or color information (BSS Color) of the first BSS.

[0216] In some embodiments, the scheduling information of the first R-TWT schedule includes at least one of the following:

[0217] The service type of the low-latency service transmitted within the corresponding R-TWT SP;

[0218] Priority of low-latency services transmitted within the corresponding R-TWT SP;

[0219] The start time and duration of the corresponding R-TWT SP;

[0220] Identification information of the first BSS where the first AP is located.

[0221] S202. When the priority of the first low-latency service is consistent with the priority of the second low-latency service, the second AP does not adjust the first R-TWT scheduling and the second R-TWT scheduling, and uses spatial multiplexing within the R-TWT SP of the second R-TWT scheduling to transmit the low-latency service.

[0222] In some embodiments, after receiving the first radio frame, the second AP may determine whether the priority of the first low-latency service is consistent with the priority of the second low-latency service.

[0223] Among them, the first low-latency service is the low-latency service transmitted by the first AP in the R-TWT SP of the first R-TWT scheduling, and the second low-latency service is the low-latency service transmitted by the second AP in the R-TWT SP of the second R-TWT scheduling. The R-TWT SP of the first R-TWT scheduling overlaps with the R-TWT SP of the second R-TWT scheduling, and the second R-TWT scheduling is established by the second AP.

[0224] That is, for the second AP, after determining through the first wireless frame that the first AP requests R-TWT coordination for the first R-TWT scheduling, the second AP can determine the second R-TWT scheduling in which the R-TWT SP in the established R-TWT scheduling overlaps with the R-TWT SP of the first R-TWT scheduling. And further determine the priority of the first low-latency service transmitted within the R-TWT SP of the first R-TWT scheduling and the priority of the second low-latency service transmitted within the R-TWT SP of the second R-TWT scheduling, and compare the priority of the first low-latency service with the priority of the second low-latency service.

[0225] In some embodiments, when it is determined that the priority of the first low-latency service is consistent with the priority of the second low-latency service, in order to ensure the immediate transmission of the first low-latency service and the second low-latency service, the second AP may not adjust the first R-TWT scheduling and the second R-TWT scheduling, and adopt spatial multiplexing to transmit the low-latency service within the R-TWT SP of the second R-TWT scheduling. Based on this, while the first AP transmits the first low-latency service within the R-TWT SP of the first R-TWT scheduling, the second AP can transmit the second low-latency service on different spatial resources at the same time, thereby reducing communication interference and improving communication efficiency.

[0226] S203. When the priority of the first low-latency service is higher than the priority of the second low-latency service, the second AP adjusts the second R-TWT scheduling, and does not transmit the low-latency service within the R-TWT SP of the first R-TWT scheduling, but transmits the low-latency service within the R-TWT SP of the adjusted second R-TWT scheduling.

[0227] In some embodiments, when it is determined that the priority of the first low-latency service is higher than the priority of the second low-latency service, in order to ensure the immediate transmission of the first low-latency service, the second AP may adjust the second R-TWT scheduling so that the R-TWT SP of the adjusted second R-TWT scheduling does not overlap with the R-TWT SP of the first R-TWT scheduling.

[0228] Among them, the second AP can adjust the second R-TWT scheduling by adjusting the start time and / or duration of the R-TWT SP, and the specific adjustment method is not limited here.

[0229] After adjusting the second R-TWT scheduling, the second AP does not perform low-latency service transmission within the R-TWT SP of the first R-TWT scheduling, but performs low-latency service transmission within the R-TWT SP of the adjusted second R-TWT scheduling.

[0230] S204: When the priority of the first low-latency service is lower than the priority of the second low-latency service, the second AP determines whether the first R-TWT scheduling supports adjustment.

[0231] In some embodiments, when the second AP determines that the priority of the first low-latency service is lower than the priority of the second low-latency service, it may first determine whether the first R-TWT scheduling supports adjustment.

[0232] Optionally, the second AP may determine the first broadcast target wake-up time parameter set field corresponding to the first R-TWT scheduling in the first TWT element of the first wireless frame, and determine the identification value of the third identification field in the first broadcast target wake-up time parameter set field. When the identification value of the third identification field is the second value, the second AP may determine that the first R-TWT scheduling supports adjustment; when the identification value of the third identification field is the third value, the second AP may determine that the first R-TWT scheduling does not support adjustment.

[0233] When it is determined that the first R-TWT scheduling supports adjustment, the second AP executes S205. When it is determined that the first R-TWT scheduling does not support adjustment, the second AP executes S206.

[0234] S205, the second AP adjusts the first R-TWT scheduling, and does not perform low-latency service transmission in the R-TWT SP of the adjusted first R-TWT scheduling, but performs low-latency service transmission in the R-TWT SP of the second R-TWT scheduling.

[0235] In some embodiments, when the second AP determines that the first R-TWT scheduling supports adjustment, in order to ensure the immediate transmission of the second low-latency service, the second AP may adjust the first R-TWT scheduling so that the R-TWT SP of the adjusted first R-TWT scheduling does not overlap with the R-TWT SP of the second R-TWT scheduling.

[0236] Among them, the second AP can adjust the first R-TWT scheduling by adjusting the start time and / or duration of the R-TWT SP, and the specific adjustment method is not limited here.

[0237] After adjusting the first R-TWT scheduling, the second AP may not perform low-latency service transmission within the R-TWT SP of the adjusted first R-TWT scheduling, but may perform low-latency service transmission within the R-TWT SP of the second R-TWT scheduling.

[0238] S206, the second AP adjusts the second R-TWT scheduling, does not perform low-latency service transmission in the R-TWT SP of the first R-TWT scheduling, and performs low-latency service transmission in the R-TWT SP of the adjusted second R-TWT scheduling; or, does not adjust the first R-TWT scheduling and the second R-TWT scheduling, and uses spatial multiplexing to perform low-latency service transmission in the R-TWT SP of the second R-TWT scheduling.

[0239] In some embodiments, when the second AP determines that the first R-TWT scheduling does not support adjustment, in order to avoid communication interference between the first low-latency service transmission and the second low-latency service transmission, the second AP may adjust the second R-TWT scheduling so that the R-TWT SP of the adjusted second R-TWT scheduling does not overlap with the R-TWT SP of the first R-TWT scheduling.

[0240] Among them, the second AP can adjust the second R-TWT scheduling by adjusting the start time and / or duration of the R-TWT SP, and the specific adjustment method is not limited here.

[0241] After the second AP adjusts the second R-TWT scheduling, the second AP does not perform low-latency transmission within the R-TWT SP of the first R-TWT scheduling, but performs low-latency service transmission within the R-TWT SP of the adjusted second R-TWT scheduling.

[0242] In some embodiments, when the second AP determines that the first R-TWT scheduling does not support adjustment, in order to ensure the immediate transmission of the first low-latency service with higher priority, the second AP may not adjust the second R-TWT scheduling, and use spatial multiplexing within the R-TWT SP of the second R-TWT scheduling to transmit the low-latency service, thereby avoiding interference between the transmission of the first low-latency service and the transmission of the second low-latency service.

[0243] S207, the second AP sends a second wireless frame, the second wireless frame includes at least one item of scheduling information of the third R-TWT scheduling or the scheduling information of the fourth R-TWT scheduling; the third R-TWT scheduling includes the first R-TWT scheduling or the adjusted first R-TWT scheduling, and the fourth R-TWT scheduling includes the second R-TWT scheduling or the adjusted second R-TWT scheduling.

[0244] In some embodiments, after the second AP receives the first radio frame and completes R-TWT coordination, it may send a second radio frame to the first AP.

[0245] The second wireless frame includes at least one of the scheduling information of the third R-TWT scheduling or the scheduling information of the fourth R-TWT scheduling.

[0246] Among them, the third R-TWT scheduling includes the first R-TWT scheduling or the adjusted first R-TWT scheduling, and the fourth R-TWT scheduling includes the second R-TWT scheduling or the adjusted second R-TWT scheduling.

[0247] If the second AP adjusts the first R-TWT schedule, the second radio frame may include a third R-TWT schedule, which is the adjusted first R-TWT schedule. Optionally, the second radio frame may also include a fourth R-TWT schedule, which is the second R-TWT schedule.

[0248] If the second AP adjusts the second R-TWT schedule, the second radio frame may include a fourth R-TWT schedule, which is the adjusted second R-TWT schedule. Optionally, the second radio frame may also include a third R-TWT schedule, which is the first R-TWT schedule.

[0249] Among them, if the second AP does not adjust the first R-TWT scheduling and the second R-TWT scheduling, the second wireless frame may include at least one of the third R-TWT scheduling and the fourth R-TWT scheduling, the third R-TWT scheduling is the first R-TWT scheduling, and the fourth R-TWT scheduling is the second R-TWT scheduling.

[0250] Among them, when at least one of the third R-TWT scheduling and the fourth R-TWT scheduling is an adjusted R-TWT scheduling, the R-TWT SP of the third R-TWT scheduling and the R-TWT SP of the fourth R-TWT scheduling do not overlap. That is, if the second AP adjusts any one of the first R-TWT scheduling or the second R-TWT scheduling, the R-TWT SP of the adjusted R-TWT scheduling does not overlap with the R-TWT SP of the other unadjusted R-TWT scheduling. For example, the second AP adjusts the first R-TWT scheduling, and the R-TWT SP of the adjusted first R-TWT scheduling does not overlap with the R-TWT SP of the second R-TWT scheduling. The second AP adjusts the second R-TWT scheduling, and the R-TWT SP of the adjusted second R-TWT scheduling does not overlap with the R-TWT SP of the first R-TWT scheduling.

[0251] In some embodiments, the second wireless frame includes a second action field, and the second action field may include at least one of a second category field, a fifth identification field, a second dialogue token field, or a second target wakeup time (TWT) element.

[0252] Specifically, the second category field is used to indicate the frame type of the second radio frame.

[0253] The second category field indicates that the second radio frame is an ultra-high reliability action (UHR Action) frame through the seventh value, and indicates that the second radio frame is a protected ultra-high reliability action (Protected UHR Action) frame through the eighth value. Alternatively, the second category field indicates that the second radio frame is a multi-AP coordination action (M-AP Coordination Action) frame through the ninth value, and indicates that the second radio frame is a protected M-AP Coordination Action frame through the tenth value.

[0254] Among them, the seventh value and the eighth value are different values, and the ninth value and the tenth value are different values.

[0255] The seventh value and the ninth value may be the same value, and the eighth value and the tenth value may be the same value. Alternatively, the seventh value and the tenth value may be the same value, and the eighth value and the ninth value may be the same value.

[0256] As an example, when the identification value of the second category field is 38, it indicates that the second radio frame is a UHR Action frame; when the identification value of the second category field is 39, it indicates that the second radio frame is a Protected UHR frame. Alternatively, when the identification value of the second category field is 38, it indicates that the second radio frame is an M-AP Coordination Action frame; when the identification value of the second category field is 39, it indicates that the second radio frame is a Protected M-AP Coordination Action frame.

[0257] Specifically, the fifth identification field is used to indicate the function type of the second radio frame. When the second radio frame includes the second category field, the fifth identification field is used to indicate the specific function type of the second radio frame under the frame type indicated by the second category field.

[0258] Among them, when the identification value of the fifth identification field is the thirteenth value, it is used to indicate that the second wireless frame is a UHR R-TWT coordination response frame; when the identification value of the fifth identification field is the fourteenth value, it is used to indicate that the second wireless frame is an M-AP R-TWT coordination response frame.

[0259] Among them, the thirteenth value and the fourteenth value are different values.

[0260] As an example, the second wireless frame includes a second category field and a fifth identification field. When the second category field indicates that the second wireless frame is a UHR Action frame through the seventh value, the fifth identification field indicates that the second wireless frame is a UHR R-TWT coordination response frame through the thirteenth value; when the second category field indicates that the second wireless frame is an M-AP Coordination Action frame through the tenth value, the fifth identification field indicates that the second wireless frame is an M-AP R-TWT coordination response frame through the fourteenth value.

[0261] Specifically, the second dialogue token field is used to identify the session in which the second wireless frame participates, such as used to identify the R-TWT coordination dialogue.

[0262] Specifically, the second TWT element includes at least one of the scheduling information of the third R-TWT scheduling or the scheduling information of the fourth R-TWT scheduling.

[0263] In some embodiments, the second wireless frame includes a second TWT element, and the second TWT element includes at least one item from the second broadcast target wake-up time parameter set field corresponding to the third R-TWT scheduling or the third broadcast target wake-up time parameter set field corresponding to the fourth R-TWT scheduling.

[0264] The second broadcast target wake time parameter set field and the third broadcast target wake time parameter set field include at least one of the sixth identification field, the seventh identification field and the eighth identification field.

[0265] Specifically, the sixth identification field responds to the R-TWT scheduling coordination request through the fourth value indication.

[0266] The fourth value may be 0, which is not limited here.

[0267] The sixth identification field may be a request type (Request Type) field.

[0268] Specifically, the seventh identification field indicates through the fifth value that the first R-TWT scheduling is accepted and the first R-TWT scheduling is not adjusted, and indicates through the sixth value that the first R-TWT scheduling is adjusted and the first R-TWT scheduling is replaced with the adjusted first R-TWT scheduling.

[0269] The fifth value and the sixth value are different values. For example, the fifth value may be 4 and the sixth value may be 5, and there is no limitation here.

[0270] Among them, the seventh identification field can be a target wake-up time establishment command (TWT Setup Command) field.

[0271] Specifically, the eighth identification field is used to identify the BSS where the corresponding AP is located, such as used to indicate identification information (such as BSS ID) or color information (BSS Color) of the corresponding BSS.

[0272] Optionally, the seventh identification field in the third broadcast target wake-up time parameter set field can also indicate through the fifteenth value that the second AP has not adjusted the second R-TWT scheduling, that is, indicating that the fourth R-TWT scheduling is the second R-TWT scheduling, and the seventh identification field can also indicate through the sixteenth value that the second AP has adjusted the second R-TWT scheduling, that is, indicating that the fourth R-TWT scheduling is the adjusted second R-TWT scheduling.

[0273] In some embodiments, the scheduling information of the third R-TWT schedule and / or the scheduling information of the fourth R-TWT schedule includes at least one of the following:

[0274] The service type of the low-latency service transmitted within the corresponding R-TWT SP;

[0275] Priority of low-latency services transmitted within the corresponding R-TWT SP;

[0276] The start time and duration of the corresponding R-TWT SP;

[0277] The identification information of the BSS where the AP is located.

[0278] It should be noted that when the first wireless frame includes scheduling information of multiple first R-TWT schedules, that is, when the first AP requests the second AP to perform R-TWT coordination for multiple first R-TWT schedules through the first wireless frame, R-TWT coordination can be performed for each first R-TWT schedule based on the aforementioned S202-S208 method to obtain multiple third R-TWT schedules and corresponding fourth R-TWT schedules.

[0279] Moreover, the R-TWT SP of each third R-TWT schedule does not overlap with any R-TWT SP of the fourth R-TWT schedule, and the R-TWT SP of each fourth R-TWT SP does not overlap with any R-TWT SP of the third R-TWT schedule.

[0280] It should be noted that when the second AP performs R-TWT coordination for multiple first R-TWT schedules to obtain multiple third R-TWT schedules and corresponding fourth R-TWT schedules, the second wireless frame includes a second TWT element, and the second TWT element includes the second broadcast target wake-up time parameter set domain corresponding to each third R-TWT schedule and / or the third broadcast target wake-up time parameter set domain corresponding to each fourth R-TWT schedule.

[0281] Among them, each second broadcast target wake-up time parameter set domain corresponds to a third R-TWT scheduling, each third broadcast target wake-up time parameter set domain corresponds to a third R-TWT scheduling, each second broadcast target wake-up time parameter set domain corresponds to a third broadcast target wake-up time parameter set domain, and each second broadcast target wake-up time parameter set domain and its corresponding third broadcast target wake-up time parameter set domain correspond to an R-TWT coordination request of a first R-TWT scheduling.

[0282] Among them, the sixth identification field in each second broadcast target wake-up time parameter set field and the third broadcast target wake-up time parameter set field responds to the R-TWT coordination request of the corresponding first R-TWT scheduling through the fourth value indication.

[0283] Among them, for any second broadcast target wake-up time parameter set domain and its corresponding third broadcast target wake-up time parameter set domain, the seventh identification domain in the second broadcast target wake-up time parameter set domain and the corresponding third broadcast target wake-up time parameter set domain accepts the corresponding first R-TWT scheduling through the fifth value indication and does not adjust it. If the second AP adjusts the second R-TWT scheduling corresponding to the first R-TWT scheduling, the third broadcast target wake-up time parameter set domain includes the scheduling information of the adjusted second R-TWT scheduling. The seventh identification domain in the second broadcast target wake-up time parameter set domain and the corresponding third broadcast target wake-up time parameter set domain indicates through the sixth value that the corresponding first R-TWT scheduling is adjusted and replaced with the adjusted first R-TWT scheduling. At this time, the second broadcast target wake-up time parameter set domain includes the scheduling information of the adjusted first R-TWT scheduling.

[0284] S208, when the priority of the first low-latency service is consistent with the priority of the second low-latency service, the first AP uses spatial multiplexing to transmit the low-latency service within the R-TWT SP scheduled by the third R-TWT.

[0285] In some feasible implementations, after receiving the second wireless frame, the first AP may determine the priority of the first low-latency service and the priority of the second low-latency service, and compare the priority of the first low-latency service with the priority of the second low-latency service.

[0286] In some embodiments, when it is determined that the priority of the first low-latency service is consistent with the priority of the second low-latency task, the first AP may determine that the second AP has not adjusted the first R-TWT scheduling and the second R-TWT scheduling.

[0287] Furthermore, to ensure the immediate transmission of the first low-latency service and the second low-latency service, the first AP can use spatial multiplexing to transmit the low-latency service within the R-TWT SP scheduled by the third R-TWT. Based on this, while the second AP is transmitting the second low-latency service within the R-TWT SP scheduled by the fourth R-TWT, the first AP can transmit the first low-latency service on different spatial resources at the same time, thereby reducing communication interference and improving communication efficiency.

[0288] When the priority of the first low-latency service is consistent with the priority of the second low-latency service, the third R-TWT scheduling is the first R-TWT scheduling, and the fourth R-TWT scheduling is the second R-TWT SP.

[0289] S209, when the priority of the first low-latency service is higher than the priority of the second low-latency service, the first AP transmits the low-latency service within the R-TWT SP scheduled by the third R-TWT, and does not transmit the low-latency service within the R-TWT SP scheduled by the fourth R-TWT.

[0290] In some embodiments, when determining that the priority of the first low-latency service is higher than the priority of the second low-latency service, the first AP may determine that the second AP adjusts the second R-TWT scheduling.

[0291] In addition, to ensure the instant transmission of the first low-latency service, the first AP can perform low-latency service transmission in the R-TWT SP scheduled by the third R-TWT, and not perform low-latency service transmission in the R-TWT SP scheduled by the fourth R-TWT.

[0292] When the priority of the first low-latency service is higher than the priority of the second low-latency service, the third R-TWT scheduling is the first R-TWT scheduling, and the fourth R-TWT scheduling is the adjusted second R-TWT scheduling.

[0293] S210. When the priority of the first low-latency service is lower than the priority of the second low-latency service, the first AP transmits the low-latency service within the R-TWT SP scheduled by the third R-TWT, and does not transmit the low-latency service within the R-TWT SP scheduled by the fourth R-TWT; or, spatial multiplexing is used to transmit the low-latency service within the R-TWT SP scheduled by the third R-TWT.

[0294] In some embodiments, when it is determined that the priority of the first low-latency service is lower than the priority of the second low-latency service, and the first R-TWT scheduling supports adjustment, the first AP may transmit the low-latency service in the R-TWT SP of the third R-TWT scheduling, and not transmit the low-latency service in the R-TWT SP of the fourth R-TWT scheduling.

[0295] At this time, the third R-TWT scheduling is the adjusted first R-TWT scheduling, and the fourth R-TWT scheduling is the second R-TWT scheduling.

[0296] When it is determined that the priority of the first low-latency service is lower than the priority of the second low-latency service, and the first R-TWT scheduling does not support adjustment, the first AP may transmit the low-latency service in the R-TWT SP of the third R-TWT scheduling, and not transmit the low-latency service in the R-TWT SP of the fourth R-TWT scheduling. At this time, the third R-TWT scheduling is the first R-TWT scheduling, and the fourth R-TWT scheduling is the adjusted second R-TWT scheduling.

[0297] Alternatively, when the first R-TWT scheduling does not support adjustment, the second AP does not adjust the second R-TWT scheduling to ensure the immediate transmission of the second low-latency service. In this case, the first AP can use spatial multiplexing to transmit low-latency services in the R-TWT SP of the third R-TWT scheduling. At this time, the third R-TWT scheduling is the first R-TWT scheduling.

[0298] The communication method provided in the embodiment of the present application is further described below with reference to specific examples.

[0299] In a communication system, BSS1 of AP1 and BSS2 of AP2 form an OBSS, STA1 and STA2 are located in the OBSS, and AP1 and STA1 establish R-TWT scheduling 1, AP2 and STA2 establish R-TWT scheduling 2, and the R-TWTSP of R-TWT scheduling 1 overlaps with the R-TWT SP of R-TWT scheduling 3 established by AP2, and the R-TWT SP of R-TWT scheduling 2 overlaps with the R-TWT SP of R-TWT scheduling 4 established by AP2.

[0300] In this case, AP1 sends a first radio frame to AP2 to request AP2 to perform R-TWT coordination for R-TWT scheduling 1 and R-TWT scheduling 2.

[0301] Among them, the first wireless frame includes scheduling information of R-TWT scheduling 1 and scheduling information of R-TWT scheduling 2.

[0302] Among them, the first wireless frame includes an Action field, and the Action field includes a Category field, a first identification field, a Dialog Token field, and a TWT element.

[0303] The Category field in the first radio frame is used to indicate the frame type of the first radio frame. The Category field in the first radio frame indicates that the first radio frame is a UHR Action frame by using an identification value of 38, and indicates that the first radio frame is a Protected UHR Action frame by using an identification value of 39. Alternatively, the Category field in the first radio frame indicates that the first radio frame is an M-AP Coordination Action frame by using an identification value of 38, and indicates that the first radio frame is a Protected M-AP Coordination Action frame by using an identification value of 39.

[0304] The first identification field in the first wireless frame is used to indicate the specific function type of the first wireless frame under the frame type indicated by the Category field. When the Category field indicates that the first wireless frame is a UHR Action frame through the seventh value, the first identification field indicates that the first wireless frame is a UHR R-TWT coordination request frame through the eleventh value; when the Category field indicates that the first wireless frame is an M-AP Coordination Action frame through the tenth value, the first identification field indicates that the first wireless frame is an M-AP R-TWT coordination request frame through the twelfth value.

[0305] The Dialog Token field in the first radio frame is used to identify the session in which the first radio frame participates, such as for identifying the R-TWT coordination dialogue. The TWT element in the first radio frame includes the scheduling information of R-TWT scheduling 1 and the scheduling information of R-TWT scheduling 2.

[0306] Among them, the TWT element includes the Broadcast TWT Parameter Set field corresponding to R-TWT scheduling 1 and the Broadcast TWT Parameter Set field corresponding to R-TWT scheduling 2.

[0307] Each Broadcast TWT Parameter Set field in the first radio frame includes at least one of the following:

[0308] The Request Type field uses the first value to request R-TWT coordination for the corresponding R-TWT scheduling;

[0309] TWT Setup Command domain, the TWT Setup Command domain indicates that the corresponding R-TWT scheduling supports adjustment through the second value; the TWT Setup Command domain indicates that the corresponding R-TWT scheduling does not support adjustment through the third value;

[0310] The fourth identification field is used to indicate the BSS ID or BSS Color of BSS1.

[0311] For AP2, after receiving the first wireless frame, AP2 can determine the priority of low-latency service 1 transmitted within the R-TWT SP of R-TWT scheduling 1, the priority of low-latency service 2 transmitted within the R-TWT SP of R-TWT scheduling 2, the priority of low-latency service 3 transmitted within the R-TWT SP of R-TWT scheduling 3, and the priority of low-latency service 4 transmitted within the R-TWT SP of R-TWT scheduling 4.

[0312] For R-TWT scheduling 1 and R-TWT scheduling 3, when the priority of low-latency service 1 is the same as the priority of low-latency service 3, AP2 does not adjust R-TWT scheduling 1 and R-TWT scheduling 3, and uses spatial multiplexing to transmit low-latency service 3 within the R-TWT SP of R-TWT scheduling 3. When the priority of low-latency service 1 is higher than the priority of low-latency service 3, AP2 does not adjust R-TWT scheduling 1, but adjusts R-TWT scheduling 3. AP2 does not transmit low-latency service within the R-TWT SP of R-TWT scheduling 1, but transmits low-latency service 3 within the R-TWT SP of the adjusted R-TWT scheduling 3, where the R-TWT SP of the adjusted R-TWT scheduling 3 does not overlap with the R-TWT SP of R-TWT scheduling 1. When the priority of low-latency service 1 is lower than the priority of low-latency service 3, if R-TWT scheduling 1 supports adjustment, AP2 adjusts R-TWT scheduling 1 and does not adjust R-TWT scheduling 3, and AP2 does not transmit low-latency service in the R-TWT SP of the adjusted R-TWT scheduling 1, but transmits low-latency service 3 in the R-TWT SP of R-TWT scheduling 3, wherein the R-TWT SP of the adjusted R-TWT scheduling 1 does not overlap with the R-TWT SP of R-TWT scheduling 3; if R-TWT scheduling 1 does not support adjustment, AP2 does not adjust R-TWT scheduling 1 and R-TWT scheduling 3, and AP2 uses spatial multiplexing to transmit low-latency service 3 in the R-TWT SP of R-TWT scheduling 3, or AP2 adjusts R-TWT scheduling 3, does not transmit low-latency service in the R-TWT SP of R-TWT scheduling 1, and transmits low-latency service 3 in the R-TWT SP of R-TWT scheduling 3 after adjustment. Low-latency service 3 is transmitted within the SP, wherein the R-TWT SP of the adjusted R-TWT scheduling 3 does not overlap with the R-TWT SP of the R-TWT scheduling 1.

[0313] For R-TWT scheduling 2 and R-TWT scheduling 4, AP2 adopts the same method as above to perform R-TWT coordination and low-latency service transmission based on the priority of low-latency service 2 and the priority of low-latency service 4.

[0314] After performing R-TWT coordination, AP2 may also send a second wireless frame, which is used to respond to the R-TWT coordination request.

[0315] Among them, the second wireless frame includes scheduling information of R-TWT scheduling 5, scheduling information of R-TWT scheduling 6, scheduling information of R-TWT scheduling 7 and scheduling information of R-TWT scheduling 8.

[0316] The second wireless frame includes an Action field, and the Action field includes a Category field, a first identification field, a Dialog Token field, and a TWT element.

[0317] The Category field in the second radio frame is used to indicate the frame type of the second radio frame. The Category field in the second radio frame uses an identifier value of 38 to indicate that the second radio frame is a UHR Action frame, and uses an identifier value of 39 to indicate that the second radio frame is a Protected UHR Action frame. Alternatively, the Category field in the second radio frame uses an identifier value of 38 to indicate that the second radio frame is an M-AP Coordination Action frame, and uses an identifier value of 39 to indicate that the second radio frame is a Protected M-AP Coordination Action frame.

[0318] The fifth identification field in the second radio frame is used to indicate the specific function type of the second radio frame under the frame type indicated by the Category field. When the Category field indicates that the second radio frame is a UHR Action frame, the fifth identification field indicates that the second radio frame is a UHR R-TWT coordination response frame; when the Category field indicates that the second radio frame is a Protected UHR frame, the fifth identification field indicates that the second radio frame is an M-AP R-TWT coordination response frame.

[0319] The Dialog Token field in the second radio frame is used to identify the session in which the second radio frame participates, such as for identifying the R-TWT coordination dialogue. The TWT elements in the second radio frame include scheduling information for R-TWT scheduling 5, scheduling information for R-TWT scheduling 6, scheduling information for R-TWT scheduling 7, and scheduling information for R-TWT scheduling 8.

[0320] Among them, the TWT elements include the Broadcast TWT Parameter Set field corresponding to R-TWT scheduling 5, the Broadcast TWT Parameter Set field corresponding to R-TWT scheduling 6, the Broadcast TWT Parameter Set field corresponding to R-TWT scheduling 7, and the Broadcast TWT Parameter Set field corresponding to R-TWT scheduling 8.

[0321] Among them, the Broadcast TWT Parameter Set field corresponding to R-TWT scheduling 5 includes at least one of the Request Type field, the TWT Setup Command field or the fourth identification field. The Request Type field responds to the R-TWT coordination request through the fourth value, the TWT Setup Command field indicates the acceptance of R-TWT scheduling 1 and no adjustment to R-TWT scheduling 1 through the fifth value, and indicates the adjustment of R-TWT scheduling 1 and replacement of R-TWT scheduling 1 with the adjusted R-TWT scheduling 1 through the sixth value, and the fourth identification field is used to indicate the BSS ID or BSS Color of BSS1.

[0322] The Broadcast TWT Parameter Set field corresponding to R-TWT scheduling 6 includes at least one of the Request Type field, the TWT Setup Command field, or the fourth identification field. The Request Type field responds to the R-TWT coordination request through the fourth value, the TWT Setup Command field indicates acceptance of R-TWT scheduling 1 and no adjustment to R-TWT scheduling 1 through the fifth value, and indicates adjustment to R-TWT scheduling 1 and replacement of R-TWT scheduling 1 with the adjusted R-TWT scheduling 1 through the sixth value, and the fourth identification field is used to indicate the BSS ID or BSS Color of BSS2.

[0323] When AP2 does not adjust R-TWT Schedule 1, R-TWT Schedule 5 is R-TWT Schedule 1. When AP2 adjusts R-TWT Schedule 1, R-TWT Schedule 5 is the adjusted R-TWT Schedule 1. When AP2 does not adjust R-TWT Schedule 3, R-TWT Schedule 6 is R-TWT Schedule 3. When AP2 adjusts R-TWT Schedule 3, R-TWT Schedule 6 is the adjusted R-TWT Schedule 3.

[0324] Among them, the Broadcast TWT Parameter Set field corresponding to R-TWT scheduling 7 includes at least one of the Request Type field, the TWT Setup Command field or the fourth identification field. The Request Type field responds to the R-TWT coordination request through the fourth value, the TWT Setup Command field indicates the acceptance of R-TWT scheduling 2 and no adjustment to R-TWT scheduling 2 through the fifth value, and indicates the adjustment of R-TWT scheduling 2 and replacement of R-TWT scheduling 2 with the adjusted R-TWT scheduling 2 through the sixth value, and the fourth identification field is used to indicate the BSS ID or BSS Color of BSS1.

[0325] The Broadcast TWT Parameter Set field corresponding to R-TWT scheduling 8 includes at least one of the Request Type field, the TWT Setup Command field, or the fourth identification field. The Request Type field responds to the R-TWT coordination request through the fourth value, the TWT Setup Command field indicates acceptance of R-TWT scheduling 2 and no adjustment to R-TWT scheduling 2 through the fifth value, and indicates adjustment to R-TWT scheduling 3 and replacement of R-TWT scheduling 2 with the adjusted R-TWT scheduling 2 through the sixth value, and the fourth identification field is used to indicate the BSS ID or BSS Color of BSS3.

[0326] When AP2 does not adjust R-TWT Schedule 2, R-TWT Schedule 7 is R-TWT Schedule 2. When AP2 adjusts R-TWT Schedule 2, R-TWT Schedule 7 is the adjusted R-TWT Schedule 2. When AP2 does not adjust R-TWT Schedule 4, R-TWT Schedule 8 is R-TWT Schedule 4. When AP2 adjusts R-TWT Schedule 4, R-TWT Schedule 8 is the adjusted R-TWT Schedule 4.

[0327] Among them, any one of the R-TWT SP of R-TWT scheduling 5 and the R-TWT SP of R-TWT scheduling 7 does not overlap with the R-TWT SP of R-TWT scheduling 6 and the R-TWT SP of R-TWT scheduling 8.

[0328] After AP1 receives the second radio frame, when the priority of low-latency service 1 is consistent with the priority of low-latency service 3, AP1 uses spatial multiplexing to transmit low-latency service 1 within the R-TWT SP of R-TWT scheduling 1. When the priority of low-latency service 1 is higher than the priority of low-latency service 3, AP1 does not transmit low-latency service within the R-TWT SP of the adjusted R-TWT scheduling 3, and transmits low-latency service 1 within the R-TWT SP of R-TWT scheduling 1. When the priority of low-latency service 1 is lower than that of low-latency service 3, if R-TWT scheduling 1 supports adjustment and AP2 adjusts R-TWT scheduling 1, AP1 does not transmit low-latency service within the R-TWT SP of R-TWT scheduling 3, and transmits low-latency service 1 within the R-TWT SP of the adjusted R-TWT scheduling 1; if R-TWT scheduling 1 does not support adjustment and AP2 does not adjust R-TWT scheduling 1 and R-TWT scheduling 3, AP1 uses spatial multiplexing to transmit low-latency service 1 within the R-TWT SP of R-TWT scheduling 1, or AP2 adjusts R-TWT scheduling 3, AP1 does not transmit low-latency service within the R-TWT SP of the adjusted R-TWT scheduling 3, and transmits low-latency service 1 within the R-TWT SP of R-TWT scheduling 1.

[0329] The communication method involved in the embodiments of the present disclosure may include at least one of the aforementioned embodiments. For example, any one of S201-S210 may be implemented as an independent embodiment, and any combination of S201-S210 may be implemented as an independent embodiment, but is not limited thereto.

[0330] FIG3 is a flow chart of a communication method according to an embodiment of the present disclosure. As shown in FIG3 , the method is executed by a first AP and includes:

[0331] S31. When there is a first R-TWT schedule in the R-TWT schedule established by the first AP, determine a first wireless frame, the first wireless frame includes scheduling information of the first R-TWT schedule, and the first wireless frame is used to request the second AP to perform R-TWT coordination.

[0332] In some embodiments, the R-TWT service time SP of the first R-TWT schedule overlaps with the R-TWT SP of at least one R-TWT schedule established by the second AP, and there is a site device STA located in the first overlapping basic service set OBSS among the members of the first R-TWT schedule, and the first basic service set BSS where the first AP is located and the second BSS where the second AP is located form a first OBSS.

[0333] In some embodiments, the first radio frame includes a first action field, and the first action field includes at least one of the following:

[0334] A first category field, where the first category field is used to indicate a frame type of the first radio frame;

[0335] A first identification field, where the first identification field is used to indicate a function type of the first radio frame;

[0336] A first conversation token field, where the first conversation token field is used to identify the session in which the first radio frame participates;

[0337] A first target wake-up time element, the first target wake-up time element includes scheduling information of a first R-TWT schedule.

[0338] In some embodiments, the first target wake-up time element includes a first broadcast target wake-up time parameter set field corresponding to the first R-TWT schedule;

[0339] The first broadcast target wake-up time parameter set field includes at least one of the following:

[0340] a second identification field, wherein the second identification field requests R-TWT coordination for the first R-TWT scheduling through a first value;

[0341] A third identification field, wherein the third identification field indicates that the first R-TWT scheduling supports adjustment through the second value; the third identification field indicates that the first R-TWT scheduling does not support adjustment through the third value;

[0342] The fourth identification field is used to indicate the identification information or BSS color of the first BSS.

[0343] S32: Send a first wireless frame.

[0344] In some embodiments, the first radio frame may be sent to the second AP to request the second AP to perform R-TWT coordination.

[0345] The communication method involved in the embodiments of the present disclosure may include at least one of the aforementioned steps and embodiments. For example, any one of steps S31-S32 may be implemented as an independent embodiment, and S31-S32 may be implemented as an independent embodiment, but are not limited thereto.

[0346] FIG4 is a second flow chart of a communication method according to an embodiment of the present disclosure. As shown in FIG4 , the method is executed by a first AP and includes:

[0347] S41. When there is a first R-TWT schedule in the R-TWT schedule established by the first AP, determine a first wireless frame, the first wireless frame includes scheduling information of the first R-TWT schedule, and the first wireless frame is used to request the second AP to perform R-TWT coordination.

[0348] S42, sending a first wireless frame.

[0349] In some embodiments, the implementation of S41-S42 can refer to the implementation shown in S31-32 in Figure 3, and will not be repeated here.

[0350] S43, receiving a second wireless frame, the second wireless frame includes at least one item of scheduling information of a third R-TWT scheduling or scheduling information of a fourth R-TWT scheduling; the third R-TWT scheduling includes the first R-TWT scheduling or the adjusted first R-TWT scheduling, and the fourth R-TWT scheduling includes the second R-TWT scheduling or the adjusted second R-TWT scheduling.

[0351] In some embodiments, after the first AP sends the first radio frame, it may receive the second radio frame.

[0352] The second radio frame includes at least one of scheduling information of the third R-TWT schedule or scheduling information of the fourth R-TWT schedule;

[0353] The third R-TWT scheduling includes the first R-TWT scheduling or the adjusted first R-TWT scheduling, and the fourth R-TWT scheduling includes the second R-TWT scheduling or the adjusted second R-TWT scheduling; the R-TWT SP of the first R-TWT scheduling overlaps with the R-TWT SP of the second R-TWT scheduling, and the second R-TWT scheduling is established by the second AP;

[0354] Among them, when at least one of the third R-TWT scheduling and the fourth R-TWT scheduling is the adjusted R-TWT scheduling, the R-TWT SP of the third R-TWT scheduling and the R-TWT SP of the fourth R-TWT scheduling do not overlap.

[0355] In some embodiments, the second radio frame includes a second action field, and the second action field includes at least one of the following:

[0356] A second category field, where the second category field is used to indicate a frame type of the second radio frame;

[0357] A fifth identification field, the second field is used to indicate a functional type of the second radio frame;

[0358] A second conversation token field, where the second conversation token field is used to identify the session in which the second radio frame participates;

[0359] The second target wake-up time element includes at least one of the scheduling information of the third R-TWT scheduling or the scheduling information of the fourth R-TWT scheduling.

[0360] In some embodiments, the scheduling information of the first R-TWT schedule, the third R-TWT schedule, and the fourth R-TWT schedule includes at least one of the following:

[0361] The service type of the low-latency service transmitted within the corresponding R-TWT SP;

[0362] The start time and duration of the corresponding R-TWT SP;

[0363] The identification information of the BSS where the AP is located.

[0364] In some embodiments, the second target wake-up time element includes at least one of the following:

[0365] a second broadcast target wake-up time parameter set field corresponding to the third R-TWT scheduling;

[0366] a third broadcast target wake-up time parameter set field corresponding to the fourth R-TWT scheduling;

[0367] The second broadcast target wake time parameter set field and the third broadcast target wake time parameter set field include at least one of the following:

[0368] A sixth identification field, where the sixth identification field responds to the R-TWT coordination request using a fourth value;

[0369] A seventh identification field, where the seventh identification field indicates through the fifth value that the first R-TWT scheduling is accepted and no adjustment is made to the first R-TWT scheduling, and indicates through the sixth value that the first R-TWT scheduling is adjusted and the first R-TWT scheduling is replaced with the adjusted first R-TWT scheduling;

[0370] The eighth identification field is used to indicate the identification information or BSS color of the BSS where the corresponding AP is located.

[0371] S44, perform low-latency service transmission according to the scheduling information of the third R-TWT scheduling and the scheduling information of the fourth R-TWT scheduling.

[0372] In some embodiments, when the priority of the first low-latency service is consistent with the priority of the second low-latency service, spatial multiplexing is used to transmit the low-latency service within the R-TWT SP scheduled by the third R-TWT;

[0373] When the priority of the first low-latency service is higher than the priority of the second low-latency service, the low-latency service is transmitted in the R-TWT SP scheduled by the third R-TWT, and the low-latency service is not transmitted in the R-TWT SP scheduled by the fourth R-TWT;

[0374] When the priority of the first low-latency service is lower than the priority of the second low-latency service, the low-latency service is transmitted within the R-TWT SP scheduled by the third R-TWT, and the low-latency service is not transmitted within the R-TWT SP scheduled by the fourth R-TWT; or, spatial multiplexing is used to transmit the low-latency service within the R-TWT SP scheduled by the third R-TWT.

[0375] Among them, the first low-latency service is a low-latency service transmitted within the R-TWT SP scheduled by the first R-TWT, and the second low-latency service is a low-latency service transmitted within the R-TWT SP scheduled by the second R-TWT.

[0376] The communication method involved in the embodiments of the present disclosure may include at least one of the aforementioned steps and embodiments. For example, any one of steps S41-S44 may be implemented as an independent embodiment, and any combination of steps S41-S44 may be implemented as an independent embodiment, but is not limited thereto.

[0377] FIG5 is a third flow chart of a communication method according to an embodiment of the present disclosure. As shown in FIG5 , the method is executed by the second AP and includes:

[0378] S51, receiving a first wireless frame, where the first wireless frame includes scheduling information of a first R-TWT scheduling, and the first wireless frame is used to request a second AP to perform R-TWT coordination.

[0379] In some embodiments, the R-TWT service time SP of the first R-TWT schedule overlaps with the R-TWT SP of at least one R-TWT schedule established by the second AP, and there is a site device STA located in the first overlapping basic service set OBSS among the members of the first R-TWT schedule, and the first basic service set BSS where the first AP is located and the second BSS where the second AP is located form a first OBSS.

[0380] In some embodiments, the first radio frame includes a first action field, and the first action field includes at least one of the following:

[0381] A first category field, where the first category field is used to indicate a frame type of the first radio frame;

[0382] A first identification field, where the first identification field is used to indicate a function type of the first radio frame;

[0383] A first conversation token field, where the first conversation token field is used to identify the session in which the first radio frame participates;

[0384] A first target wake-up time element, the first target wake-up time element includes scheduling information of a first R-TWT schedule.

[0385] In some embodiments, the first target wake-up time element includes a first broadcast target wake-up time parameter set field corresponding to the first R-TWT schedule;

[0386] The first broadcast target wake-up time parameter set field includes at least one of the following:

[0387] a second identification field, wherein the second identification field requests R-TWT coordination for the first R-TWT scheduling through a first value;

[0388] A third identification field, wherein the third identification field indicates that the first R-TWT scheduling supports adjustment through the second value; the third identification field indicates that the first R-TWT scheduling does not support adjustment through the third value;

[0389] The fourth identification field is used to indicate the identification information or BSS color of the first BSS.

[0390] FIG6 is a fourth flow chart of a communication method according to an embodiment of the present disclosure. As shown in FIG6 , the method is executed by the second AP and includes:

[0391] S61, receiving a first wireless frame, the first wireless frame including scheduling information of a first R-TWT scheduling, the first wireless frame being used to request a second AP to perform R-TWT coordination.

[0392] In some embodiments, the implementation of S61 can refer to the implementation shown in S51 in Figure 5, and will not be repeated here.

[0393] S62: Perform R-TWT coordination based on the priority of the first low-latency service and the priority of the second low-latency service.

[0394] In some embodiments, when the priority of the first low-latency service is consistent with the priority of the second low-latency service, the first R-TWT scheduling and the second R-TWT scheduling are not adjusted, and spatial multiplexing is used within the R-TWT SP of the second R-TWT scheduling to transmit the low-latency service;

[0395] In some embodiments, when the priority of the first low-latency service is higher than the priority of the second low-latency service, the second R-TWT scheduling is adjusted, and the low-latency service is not transmitted in the R-TWT SP of the first R-TWT scheduling, and the low-latency service is transmitted in the R-TWT SP of the adjusted second R-TWT scheduling;

[0396] In some embodiments, when the priority of the first low-latency service is lower than the priority of the second low-latency service, and the first R-TWT scheduling supports adjustment, the first R-TWT scheduling is adjusted, and the low-latency service is not transmitted in the R-TWT SP of the adjusted first R-TWT scheduling, and the low-latency service is transmitted in the R-TWT SP of the second R-TWT scheduling;

[0397] In some embodiments, when the priority of the first low-latency service is lower than the priority of the second low-latency service and the first R-TWT scheduling does not support adjustment, the second R-TWT scheduling is adjusted, and the low-latency service is not transmitted in the R-TWT SP of the first R-TWT scheduling, and the low-latency service is transmitted in the R-TWT SP of the adjusted second R-TWT scheduling; or, the first R-TWT scheduling and the second R-TWT scheduling are not adjusted, and spatial multiplexing is used to transmit the low-latency service in the R-TWT SP of the second R-TWT scheduling;

[0398] Among them, the first low-latency service is a low-latency service transmitted within the R-TWT SP scheduled by the first R-TWT, and the second low-latency service is a low-latency service transmitted within the R-TWT SP scheduled by the second R-TWT;

[0399] Among them, the R-TWT SP of the first R-TWT scheduling overlaps with the R-TWT SP of the second R-TWT scheduling, and the second R-TWT scheduling is established by the second AP.

[0400] S63, sending a second wireless frame, the second wireless frame includes at least one item of scheduling information of the third R-TWT scheduling or the scheduling information of the fourth R-TWT scheduling; the third R-TWT scheduling includes the first R-TWT scheduling or the adjusted first R-TWT scheduling, and the fourth R-TWT scheduling includes the second R-TWT scheduling or the adjusted second R-TWT scheduling.

[0401] In some embodiments, after the second AP completes the R-TWT coordination, it may send a second wireless frame to the first AP.

[0402] The second radio frame includes at least one of scheduling information of the third R-TWT schedule or scheduling information of the fourth R-TWT schedule;

[0403] The third R-TWT scheduling includes the first R-TWT scheduling or the adjusted first R-TWT scheduling, and the fourth R-TWT scheduling includes the second R-TWT scheduling or the adjusted second R-TWT scheduling; the R-TWT SP of the first R-TWT scheduling overlaps with the R-TWT SP of the second R-TWT scheduling, and the second R-TWT scheduling is established by the second AP;

[0404] Among them, when at least one of the third R-TWT scheduling and the fourth R-TWT scheduling is the adjusted R-TWT scheduling, the R-TWT SP of the third R-TWT scheduling and the R-TWT SP of the fourth R-TWT scheduling do not overlap.

[0405] In some embodiments, the second radio frame includes a second action field, and the second action field includes at least one of the following:

[0406] A second category field, where the second category field is used to indicate a frame type of the second radio frame;

[0407] A fifth identification field, the second field is used to indicate a functional type of the second radio frame;

[0408] A second conversation token field, where the second conversation token field is used to identify the session in which the second radio frame participates;

[0409] The second target wake-up time element includes at least one of the scheduling information of the third R-TWT scheduling or the scheduling information of the fourth R-TWT scheduling.

[0410] In some embodiments, the scheduling information of the first R-TWT schedule, the third R-TWT schedule, and the fourth R-TWT schedule includes at least one of the following:

[0411] The service type of the low-latency service transmitted within the corresponding R-TWT SP;

[0412] The start time and duration of the corresponding R-TWT SP;

[0413] The identification information of the BSS where the AP is located.

[0414] In some embodiments, the second target wake-up time element includes at least one of the following:

[0415] a second broadcast target wake-up time parameter set field corresponding to the third R-TWT scheduling;

[0416] a third broadcast target wake-up time parameter set field corresponding to the fourth R-TWT scheduling;

[0417] The second broadcast target wake time parameter set field and the third broadcast target wake time parameter set field include at least one of the following:

[0418] A sixth identification field, where the sixth identification field responds to the R-TWT coordination request using a fourth value;

[0419] A seventh identification field, where the seventh identification field indicates through the fifth value that the first R-TWT scheduling is accepted and no adjustment is made to the first R-TWT scheduling, and indicates through the sixth value that the first R-TWT scheduling is adjusted and the first R-TWT scheduling is replaced with the adjusted first R-TWT scheduling;

[0420] The eighth identification field is used to indicate the identification information or BSS color of the BSS where the corresponding AP is located.

[0421] The communication method involved in the embodiments of the present disclosure may include at least one of the aforementioned steps and embodiments. For example, any one of steps S61-S63 may be implemented as an independent embodiment, and any combination of steps S61-S63 may be implemented as an independent embodiment, but is not limited thereto.

[0422] FIG7 is a schematic diagram of the structure of an AP according to an embodiment of the present disclosure. As shown in FIG7 , an AP 700 may include a processing module 710 and a transceiver module 720 .

[0423] In some embodiments, the processing module 710 is configured to, when a first R-TWT schedule exists in the R-TWT schedule established by the first AP, determine a first radio frame, where the first radio frame includes scheduling information of the first R-TWT schedule, and the first radio frame is used to request the second AP to perform R-TWT coordination;

[0424] The R-TWT SP of the first R-TWT scheduling overlaps with the R-TWT SP of at least one R-TWT scheduling established by the second AP, and there is an STA located in the first OBSS among the members of the first R-TWT scheduling, and the first BSS where the first AP is located and the second BSS where the second AP is located form the first OBSS;

[0425] In some embodiments, the transceiver module 720 is configured to send a first wireless frame.

[0426] Optionally, the processing module 710 is configured to execute at least one of the processing steps (e.g., S31 and S41, but not limited thereto) performed by the first AP in any of the above methods, which are not described in detail here. The transceiver module 720 is configured to execute at least one of the transceiver steps (e.g., S201, S208-S210, S32, S42-S44, but not limited thereto) performed by the first AP in any of the above methods, which are not described in detail here.

[0427] FIG8 is a second schematic diagram of the structure of an AP proposed in an embodiment of the present disclosure. As shown in FIG8 , the AP 800 may include a transceiver module 810 .

[0428] In some embodiments, the transceiver module 810 is configured to receive a first radio frame, where the first radio frame includes scheduling information of the first R-TWT scheduling, and the first radio frame is used to request the second AP to perform R-TWT coordination;

[0429] In which, the above-mentioned first wireless frame is sent by the first AP when there is a first R-TWT scheduling in the established R-TWT scheduling, the R-TWT SP of the above-mentioned first R-TWT scheduling overlaps with the R-TWT SP of at least one R-TWT scheduling established by the above-mentioned second AP, and there is an STA located in the first OBSS among the members of the above-mentioned first R-TWT scheduling, and the first BSS where the above-mentioned first AP is located and the second BSS where the above-mentioned second AP is located form the above-mentioned first OBSS.

[0430] Optionally, the transceiver module 810 is configured to execute at least one of the transceiver steps (e.g., S202-S203, S205-S207, S51, S61, and S63, but not limited thereto) performed by the second AP in any of the above methods, which are not described in detail here. Optionally, the AP 800 may further include a processing module 820, and the processing module 801 is configured to execute at least one of the processing steps (e.g., S204 and S62, but not limited thereto) performed by the second AP in any of the above methods.

[0431] It should be understood that the division of the above units or modules is merely a division of logical functions. In actual implementation, they may be fully or partially integrated into a single physical entity, or they may be physically separated. In addition, the units or modules may be implemented in the form of a processor calling software: for example, including a processor connected to a memory, the memory storing instructions, and the processor calling the instructions stored in the memory to implement any of the above methods or the functions of the above units or modules, where the processor is, for example, a general-purpose processor, such as a central processing unit (CPU) or a microprocessor, and the memory is a memory inside or outside the device. Alternatively, the units or modules in the device can be implemented in the form of hardware circuits, and the functions of some or all of the units or modules can be realized by designing the hardware circuits. The above-mentioned hardware circuits can be understood as one or more processors; for example, in one implementation, the above-mentioned hardware circuit is an application-specific integrated circuit (ASIC), and the functions of some or all of the above units or modules are realized by designing the logical relationship of the components in the circuit; for example, in another implementation, the above-mentioned hardware circuit can be realized by a programmable logic device (PLD). Taking a field programmable gate array (FPGA) as an example, it can include a large number of logic gate circuits, and the connection relationship between the logic gate circuits is configured by configuring the configuration file, thereby realizing the functions of some or all of the above units or modules. All units or modules of the above devices can be realized in the form of software called by the processor, or in the form of hardware circuits, or in part by the form of software called by the processor, and the remaining part by the form of hardware circuits.

[0432] In the embodiment of the present disclosure, the processor is a circuit with signal processing capability. In one implementation, the processor can be a circuit with instruction reading and execution capability, such as a central processing unit (CPU), a microprocessor, a graphics processing unit (GPU) (which can be understood as a microprocessor), or a digital signal processor (DSP); in another implementation, the processor can implement certain functions through the logical relationship of the hardware circuit, and the logical relationship of the above hardware circuit is fixed or reconfigurable, such as a hardware circuit implemented by a processor as an application-specific integrated circuit (ASIC) or a programmable logic device (PLD), such as an FPGA. In a reconfigurable hardware circuit, the process of the processor loading a configuration document and implementing the hardware circuit configuration can be understood as the process of the processor loading instructions to implement the functions of some or all of the above units or modules. In addition, it can also be a hardware circuit designed for artificial intelligence, which can be understood as an ASIC, such as a neural network processing unit (NPU), a tensor processing unit (TPU), a deep learning processing unit (DPU), etc.

[0433] Figure 9 is a schematic diagram of the structure of a communication device proposed in an embodiment of the present disclosure. Communication device 900 can be a first AP or a second AP, or can be a chip, chip system, or processor that supports the first AP or the second AP in implementing any of the above methods. The communication device can be used to implement the methods described in the above method embodiments. For details, please refer to the description of the above method embodiments.

[0434] As shown in Figure 9, the communication device 900 includes one or more processors 901. The processor 901 can be a general-purpose processor or a dedicated processor, for example, a baseband processor or a central processing unit. The baseband processor can be used to process communication protocols and communication data, and the central processing unit can be used to control the communication device (such as a base station, a baseband chip, a terminal device, a terminal device chip, a DU or a CU, etc.), execute programs, and process program data. The communication device 900 is used to perform any of the above methods.

[0435] In some embodiments, the communication device 900 further includes one or more memories 902 for storing instructions. Optionally, all or part of the memories 902 may be located outside the communication device 900.

[0436] In some embodiments, the communication device 900 further includes one or more transceivers 903. When the communication device 900 includes one or more transceivers 903, the transceiver 903 performs at least one of the communication steps such as sending and / or receiving in the above method (for example, S201-S203, S205-S210, S32, S42-S44, S51, S61, S63, but not limited thereto), and the processor 901 performs at least one of the other steps (for example, S204, S31, S41, S62, but not limited thereto).

[0437] In some embodiments, a transceiver may include a receiver and / or a transmitter. The receiver and transmitter may be separate or integrated. Optionally, the terms transceiver, transceiver unit, transceiver, and transceiver circuit may be used interchangeably; the terms transmitter, transmitting unit, transmitter, and transmitting circuit may be used interchangeably; and the terms receiver, receiving unit, receiver, and receiving circuit may be used interchangeably.

[0438] In some embodiments, the communication device 900 may include one or more interface circuits 904. Optionally, the interface circuit 904 is connected to the memory 902. The interface circuit 904 may be configured to receive signals from the memory 902 or other devices, and may be configured to send signals to the memory 902 or other devices. For example, the interface circuit 904 may read instructions stored in the memory 902 and send the instructions to the processor 901.

[0439] The communication device 900 described in the above embodiment may be a first AP or a second AP, but the scope of the communication device 900 described in the present disclosure is not limited thereto, and the structure of the communication device 900 may not be limited by FIG. 9 . The communication device may be an independent device or may be part of a larger device. For example, the above communication device may be: 1) an independent integrated circuit IC, or a chip, or a chip system or subsystem; (2) a collection of one or more ICs, optionally, the above IC collection may also include a storage component for storing data or programs; (3) an ASIC, such as a modem; (4) a module that can be embedded in other devices; (5) a receiver, a terminal device, an intelligent terminal device, a cellular phone, a wireless device, a handheld device, a mobile unit, an in-vehicle device, a network device, a cloud device, an artificial intelligence device, etc.; (6) others, etc.

[0440] 10 is a schematic diagram of the structure of a chip 1000 according to an embodiment of the present disclosure. The chip 1000 includes one or more processors 1001, and the chip 1000 is configured to execute any of the above methods.

[0441] In some embodiments, chip 1000 further includes one or more interface circuits 1003. Optionally, interface circuit 1003 is connected to memory 1002. Interface circuit 1003 can be used to receive signals from memory 1002 or other devices, and interface circuit 1003 can be used to send signals to memory 1002 or other devices. For example, interface circuit 1003 can read instructions stored in memory 1002 and send the instructions to processor 1001.

[0442] In some embodiments, the interface circuit 1003 executes at least one of the communication steps such as sending and / or receiving in the above method (for example, S201-S203, S205-S210, S32, S42-S44, S51, S61, S63, but not limited to these), and the processor 1001 executes at least one of the other steps (for example, S204, S31, S41, S62, but not limited to these).

[0443] In some embodiments, terms such as interface circuit, interface, transceiver pin, and transceiver may be used interchangeably.

[0444] In some embodiments, the chip 1000 further includes one or more memories 1002 for storing instructions. Alternatively, all or part of the memory 1002 may be external to the chip 1000.

[0445] The present disclosure also provides a storage medium having instructions stored thereon. When the instructions are executed on the communication device 900, the communication device 900 executes any of the above methods. Optionally, the storage medium is an electronic storage medium. Optionally, the storage medium is a computer-readable storage medium, but is not limited thereto and may also be a storage medium readable by other devices. Optionally, the storage medium may be a non-transitory storage medium, but is not limited thereto and may also be a temporary storage medium.

[0446] The present disclosure also provides a program product, which, when executed by the communication device 900, enables the communication device 900 to perform any of the above methods. Optionally, the program product is a computer program product.

[0447] The present disclosure also proposes a computer program, which, when run on a computer, enables the computer to execute any of the above methods. The above description is only a preferred embodiment of the present disclosure and an explanation of the technical principles used. Those skilled in the art should understand that the scope of disclosure involved in the present disclosure is not limited to the technical solutions formed by a specific combination of the above-mentioned technical features, but should also cover other technical solutions formed by any combination of the above-mentioned technical features or their equivalent features without departing from the above-mentioned disclosed concepts. For example, the above-mentioned features are replaced with the technical features with similar functions disclosed in the present disclosure (but not limited to) and the technical solutions formed.

Claims

1. A communication method, characterized in that: Applied to a first access point device AP, the method includes: When a first R-TWT schedule exists in the restricted target wake-up time R-TWT schedule established by the first AP, determining a first radio frame, where the first radio frame includes scheduling information of the first R-TWT schedule, and the first radio frame is used to request the second AP to perform R-TWT coordination; The R-TWT service time SP of the first R-TWT schedule overlaps with the R-TWT SP of at least one R-TWT schedule established by the second AP, and there is a site device STA located in a first overlapping basic service set OBSS among the members of the first R-TWT schedule, and the first basic service set BSS where the first AP is located and the second BSS where the second AP is located form the first OBSS; The first radio frame is sent.

2. The method according to claim 1, characterized in that The first radio frame includes a first action field, and the first action field includes at least one of the following: a first category field, where the first category field is used to indicate a frame type of the first radio frame; A first identification field, where the first identification field is used to indicate a function type of the first radio frame; A first conversation token field, where the first conversation token field is used to identify the session in which the first radio frame participates; A first target wake-up time element, wherein the first target wake-up time element includes scheduling information of the first R-TWT scheduling.

3. The method according to claim 2, characterized in that The first target wake-up time element includes a first broadcast target wake-up time parameter set field corresponding to the first R-TWT schedule; The first broadcast target wake-up time parameter set includes at least one of the following: a second identification field, wherein the second identification field requests R-TWT coordination for the first R-TWT scheduling through a first value; A third identification field, wherein the third identification field indicates that the first R-TWT scheduling supports adjustment through a second value; the third identification field indicates that the first R-TWT scheduling does not support adjustment through a third value; A fourth identification field, where the fourth identification field is used to indicate identification information or BSS color of the first BSS.

4. The method according to claim 1, wherein The method further comprises: receiving a second radio frame, the second radio frame including at least one of scheduling information of a third R-TWT schedule or scheduling information of a fourth R-TWT schedule; The third R-TWT scheduling includes the first R-TWT scheduling or the adjusted first R-TWT scheduling, and the fourth R-TWT scheduling includes the second R-TWT scheduling or the adjusted second R-TWT scheduling; the R-TWT SP of the first R-TWT scheduling overlaps with the R-TWT SP of the second R-TWT scheduling, and the second R-TWT scheduling is established by the second AP; When at least one of the third R-TWT scheduling and the fourth R-TWT scheduling is an adjusted R-TWT scheduling, the R-TWT SP of the third R-TWT scheduling and the R-TWT SP of the fourth R-TWT scheduling do not overlap.

5. The method according to claim 4, characterized in that The second radio frame includes a second action field, and the second action field includes at least one of the following: a second category field, where the second category field is used to indicate a frame type of the second radio frame; a fifth identification field, wherein the second field is used to indicate a functional type of the second radio frame; A second conversation token field, where the second conversation token field is used to identify the session in which the second radio frame participates; A second target wake-up time element, wherein the second target wake-up time element includes at least one item of scheduling information of the third R-TWT scheduling or scheduling information of the fourth R-TWT scheduling.

6. The method according to claim 4, characterized in that The scheduling information of the first R-TWT scheduling, the third R-TWT scheduling, and the fourth R-TWT scheduling includes at least one of the following: The service type of the low-latency service transmitted within the corresponding R-TWT SP; The start time and duration of the corresponding R-TWT SP; The identification information of the BSS where the AP is located.

7. The method according to claim 4, characterized in that The second target wake-up time element includes at least one of the following: a second broadcast target wake-up time parameter set field corresponding to the third R-TWT scheduling; a third broadcast target wake-up time parameter set field corresponding to the fourth R-TWT scheduling; The second broadcast target wake time parameter set field and the third broadcast target wake time parameter set field include at least one of the following: a sixth identification field, wherein the sixth identification field responds to the R-TWT coordination request using a fourth value; a seventh identification field, wherein the seventh identification field indicates, through a fifth value, that the first R-TWT scheduling is accepted and no adjustment is made to the first R-TWT scheduling, and indicates, through a sixth value, that the first R-TWT scheduling is adjusted and the first R-TWT scheduling is replaced with the adjusted first R-TWT scheduling; An eighth identification field, wherein the eighth identification field is used to indicate identification information or BSS color of the BSS where the corresponding AP is located.

8. The method according to claim 4, characterized in that The method further comprises: When the priority of the first low-latency service is consistent with the priority of the second low-latency service, spatial multiplexing is used to transmit the low-latency service within the R-TWT SP scheduled by the third R-TWT; When the priority of the first low-latency service is higher than the priority of the second low-latency service, the low-latency service is transmitted in the R-TWT SP of the third R-TWT scheduling, and the low-latency service is not transmitted in the R-TWT SP of the fourth R-TWT scheduling; When the priority of the first low-latency service is lower than the priority of the second low-latency service, the low-latency service is transmitted in the R-TWT SP of the third R-TWT scheduling, and the low-latency service is not transmitted in the R-TWT SP of the fourth R-TWT scheduling; or, spatial multiplexing is used to transmit the low-latency service in the R-TWT SP of the third R-TWT scheduling; Among them, the first low-latency service is a low-latency service transmitted within the R-TWT SP scheduled by the first R-TWT, and the second low-latency service is a low-latency service transmitted within the R-TWT SP scheduled by the second R-TWT.

9. A communication method, characterized in that: Applied to the second AP, the method includes: receiving a first radio frame, where the first radio frame includes scheduling information of the first R-TWT scheduling, and the first radio frame is used to request the second AP to perform R-TWT coordination; In which, the first wireless frame is sent by the first AP when there is a first R-TWT scheduling in the established R-TWT scheduling, the R-TWT SP of the first R-TWT scheduling overlaps with the R-TWT SP of at least one R-TWT scheduling established by the second AP, and there is an STA located in the first OBSS among the members of the first R-TWT scheduling, and the first BSS where the first AP is located and the second BSS where the second AP is located form the first OBSS.

10. The method according to claim 9, characterized in that The first radio frame includes a first action field, and the first action field includes at least one of the following: a first category field, where the first category field is used to indicate a frame type of the first radio frame; A first identification field, where the first identification field is used to indicate a function type of the first radio frame; A first conversation token field, where the first conversation token field is used to identify the session in which the first radio frame participates; A first target wake-up time element, wherein the first target wake-up time element includes scheduling information of the first R-TWT scheduling.

11. The method according to claim 10, characterized in that The first target wake-up time element includes a first broadcast target wake-up time parameter set field corresponding to the first R-TWT schedule; The first broadcast target wake-up time parameter set includes at least one of the following: a second identification field, wherein the second identification field requests R-TWT coordination for the first R-TWT scheduling through a first value; A third identification field, wherein the third identification field indicates that the first R-TWT scheduling supports adjustment through a second value; the third identification field indicates that the first R-TWT scheduling does not support adjustment through a third value; A fourth identification field, where the fourth identification field is used to indicate identification information or BSS color of the first BSS.

12. The method according to claim 10 or 11, characterized in that The method further comprises at least one of the following: When the priority of the first low-latency service is consistent with the priority of the second low-latency service, the first R-TWT scheduling and the second R-TWT scheduling are not adjusted, and spatial multiplexing is used within the R-TWT SP of the second R-TWT scheduling to transmit the low-latency service; When the priority of the first low-latency service is higher than the priority of the second low-latency service, the second R-TWT scheduling is adjusted, and the low-latency service is not transmitted within the R-TWT SP of the first R-TWT scheduling, and the low-latency service is transmitted within the R-TWT SP of the adjusted second R-TWT scheduling; When the priority of the first low-latency service is lower than the priority of the second low-latency service, and the first R-TWT scheduling supports adjustment, the first R-TWT scheduling is adjusted, and the low-latency service is not transmitted in the R-TWT SP of the adjusted first R-TWT scheduling, and the low-latency service is transmitted in the R-TWT SP of the second R-TWT scheduling; When the priority of the first low-latency service is lower than the priority of the second low-latency service and the first R-TWT scheduling does not support adjustment, the second R-TWT scheduling is adjusted, and the low-latency service is not transmitted within the R-TWT SP of the first R-TWT scheduling, and the low-latency service is transmitted within the R-TWT SP of the adjusted second R-TWT scheduling; or, the first R-TWT scheduling and the second R-TWT scheduling are not adjusted, and spatial multiplexing is used to transmit the low-latency service within the R-TWT SP of the second R-TWT scheduling; The first low-latency service is a low-latency service transmitted within the R-TWT SP scheduled by the first R-TWT, and the second low-latency service is a low-latency service transmitted within the R-TWT SP scheduled by the second R-TWT; The R-TWT SP of the first R-TWT scheduling overlaps with the R-TWT SP of the second R-TWT scheduling, and the second R-TWT scheduling is established by the second AP.

13. The method according to claim 12, characterized in that The method further comprises: sending a second radio frame, where the second radio frame includes at least one of scheduling information of the third R-TWT scheduling or scheduling information of the fourth R-TWT scheduling; In which, the third R-TWT scheduling includes the first R-TWT scheduling or the adjusted first R-TWT scheduling, the fourth R-TWT scheduling includes the second R-TWT scheduling or the adjusted second R-TWT scheduling, and when at least one of the third R-TWT scheduling and the fourth R-TWT scheduling is the adjusted R-TWT scheduling, the R-TWT SP of the third R-TWT scheduling and the R-TWT SP of the fourth R-TWT scheduling do not overlap.

14. The method according to claim 13, characterized in that The second radio frame includes a second action field, and the second action field includes at least one of the following: a second category field, where the second category field is used to indicate a frame type of the second radio frame; a fifth identification field, where the second identification field is used to indicate a functional type of the second radio frame; A second conversation token field, where the second conversation token field is used to identify the session in which the second radio frame participates; The second target wake-up time element, the first target wake-up time element includes at least one of the scheduling information of the third R-TWT scheduling or the scheduling information of the fourth R-TWT scheduling.

15. The method according to claim 13, characterized in that The scheduling information of the first R-TWT scheduling, the third R-TWT scheduling, and the fourth R-TWT scheduling includes at least one of the following: The service type of the low-latency service transmitted within the corresponding R-TWT SP; The start time and duration of the corresponding R-TWT SP; The identification information of the BSS where the AP is located.

16. The method according to claim 13, characterized in that The second target wake-up time element includes at least one of the following: a second broadcast target wake-up time parameter set field corresponding to the third R-TWT scheduling; a third broadcast target wake-up time parameter set field corresponding to the fourth R-TWT scheduling; The second broadcast target wake time parameter set field and the third broadcast target wake time parameter set field include at least one of the following: a sixth identification field, where when the identification value of the sixth identification field is the fourth value, the sixth identification field is used to indicate a response to the R-TWT coordination request scheduled by the first R-TWT; a seventh identification field, when the identification value of the seventh identification field is the fifth value, the seventh identification field is used to indicate that the first R-TWT scheduling is accepted and the first R-TWT scheduling is not adjusted; when the identification value of the seventh identification field is the sixth value, the seventh identification field is used to indicate that the first R-TWT scheduling is adjusted and the first R-TWT scheduling is replaced with the adjusted first R-TWT scheduling; An eighth identification field, wherein the eighth identification field is used to indicate identification information or BSS color of the BSS where the corresponding AP is located.

17. An AP, characterized in that: include: a processing module, configured to, when a first R-TWT schedule exists in the R-TWT schedule established by the first AP, determine a first radio frame, where the first radio frame includes scheduling information of the first R-TWT schedule, and the first radio frame is used to request the second AP to perform R-TWT coordination; The R-TWT SP of the first R-TWT scheduling overlaps with at least one R-TWT SP of the R-TWT scheduling established by the second AP, and there is a STA located in a first OBSS among the members of the first R-TWT scheduling, and a first BSS where the first AP is located and a second BSS where the second AP is located form the first OBSS; The transceiver module is used to send the first wireless frame.

18. An AP, characterized in that: include: a transceiver module, configured to receive a first radio frame, where the first radio frame includes scheduling information of the first R-TWT scheduling, and the first radio frame is used to request the second AP to perform R-TWT coordination; In which, the first wireless frame is sent by the first AP when there is a first R-TWT scheduling in the established R-TWT scheduling, the R-TWT SP of the first R-TWT scheduling overlaps with the R-TWT SP of at least one R-TWT scheduling established by the second AP, and there is an STA located in the first OBSS among the members of the first R-TWT scheduling, and the first BSS where the first AP is located and the second BSS where the second AP is located form the first OBSS.

19. A communication device, characterized in that: include: one or more processors; The processor is configured to execute the communication method according to any one of claims 1 to 8 or claims 9 to 16.

20. A storage medium storing instructions, characterized in that: When the instruction is executed on a communication device, the communication device is caused to execute the communication method according to any one of claims 1 to 8 or claims 9 to 16.

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