Communication method, AP MLD and storage medium

Abstract

The embodiment of the invention relates to the technical field of communication, and provides a communication method, an AP MLD and a storage medium. The method comprises: a first access point device (AP MLD) supporting multiple links determines a first wireless frame, the first wireless frame being used for indicating scheduling information of each first restricted target wake-up time (R-TWT) to which a first station device (STA) joins; wherein the first STA is attached to first site equipment Non-AP MLD supporting multiple links and works on a communication link corresponding to a first frequency band; the first Non-AP MLD is associated with the first AP MLD; the first STA is located in an overlapped basic service set (OBSS) formed by the first AP MLD and the second AP MLD in the first frequency band; and sending the first wireless frame to the second AP MLD. According to the embodiment of the invention, an indication mode of the scheduling information of the R-TWT added by the STA located in the basic service set can be provided under the condition that the basic service set is formed between the AP MLDs.

Description

Communication method, AP MLD and storage medium Technical Field

[0001] The present disclosure relates to the field of communication technology, and in particular to a communication method, an AP MLD, and a storage medium. Background Art

[0002] The Target Wake Time (TWT) is a negotiated mechanism between STAs (STAs) and access points (APs) to communicate during specific service periods and remain dormant during other periods to conserve energy. To ensure low-latency service communication, the Restricted Target Wake Time (R-TWT) protocol was proposed. Low-latency service communication occurs during the R-TWT service period (SP), while other communication services are suspended or postponed during this period.

[0003] Currently, the R-TWT mechanism will be further studied to ensure that low-latency business communications are not interfered with.

[0004] Summary of the Invention

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

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

[0007] The first multi-link access point device AP MLD determines a first radio frame, where the first radio frame is used to indicate scheduling information of each first restricted target wake-up time R-TWT joined by the first station device STA;

[0008] The first STA is attached to a first non-AP MLD supporting multi-link station device and operates on a communication link corresponding to a first frequency band; the first non-AP MLD is associated with the first AP MLD; the first STA is located in an overlapping basic service set (OBSS) formed by the first AP MLD and the second AP MLD in the first frequency band;

[0009] The first radio frame is sent to the second AP MLD.

[0010] In a second aspect, an embodiment of the present disclosure provides a communication method, the method comprising:

[0011] The second AP MLD receives a first radio frame sent by the first AP MLD, where the first radio frame is used to indicate scheduling information of each first R-TWT joined by the first STA;

[0012] The first STA is attached to the first Non-AP MLD and operates on a communication link corresponding to the first frequency band; the first Non-AP MLD is associated with the first AP MLD; and the first STA is located in an OBSS formed by the first AP MLD and the second AP MLD in the first frequency band.

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

[0014] a processing module, configured to determine a first radio frame, where the first radio frame is used to indicate scheduling information of each first restricted target wake-up time R-TWT to which a first station device STA joins;

[0015] The first STA is attached to a first non-AP MLD supporting multi-link site device and operates on a communication link corresponding to a first frequency band; the first non-AP MLD is associated with a first AP MLD; the first STA is located in an overlapping basic service set (OBSS) formed by the first AP MLD and the second AP MLD in the first frequency band;

[0016] The transceiver module is configured to send the first radio frame to the second AP MLD.

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

[0018] a transceiver module, configured to receive a first radio frame sent by a first AP MLD, where the first radio frame is used to indicate scheduling information of each first R-TWT joined by a first STA;

[0019] The first STA is attached to the first Non-AP MLD and operates on a communication link corresponding to the first frequency band; the first Non-AP MLD is associated with the first AP MLD; and the first STA is located in the OBSS formed by the first AP MLD and the second AP MLD in the first frequency band.

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

[0021] The AP MLD is used to execute the communication method described in the first aspect and / or the second aspect of the embodiment of the present 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 and / or described in 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 MLD and a second AP MLD; wherein the first AP MLD is configured to execute the method described in the first aspect, and the second AP MLD is configured to execute the method described in the second aspect.

[0024] Based on the communication method, AP MLD and storage medium provided in the embodiments of the present disclosure, a method for indicating the scheduling information of R-TWT can be provided.

[0025] Additional aspects and advantages of the embodiments of the present disclosure will be partially given in the following description, which will become apparent from the following description, or learned through practice of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] 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.

[0027] FIG1 is a schematic diagram of the architecture of a communication system according to an embodiment of the present disclosure;

[0028] FIG2 is a schematic diagram of a communication scenario according to an embodiment of the present disclosure;

[0029] FIG3 is a schematic diagram of R-TWT scheduling according to an embodiment of the present disclosure;

[0030] FIG4 is a schematic diagram illustrating interaction of a communication method according to an embodiment of the present disclosure;

[0031] FIG5 is a flow chart showing one of the communication methods according to an embodiment of the present disclosure;

[0032] FIG6 is a second flow chart of a communication method according to an embodiment of the present disclosure;

[0033] FIG7 is a third flow chart of a communication method according to an embodiment of the present disclosure;

[0034] FIG8 is a fourth flow chart of a communication method according to an embodiment of the present disclosure;

[0035] FIG9a is a schematic structural diagram of an AP MLD according to an embodiment of the present disclosure;

[0036] FIG9 b is another schematic diagram showing the structure of an AP MLD according to an embodiment of the present disclosure;

[0037] FIG10 is a schematic structural diagram of a communication device according to an embodiment of the present disclosure;

[0038] FIG11 is a schematic diagram of the structure of a chip proposed according to an embodiment of the present disclosure. DETAILED DESCRIPTION

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

[0040] In a first aspect, an embodiment of the present disclosure provides a communication method, the method comprising:

[0041] The first multi-link access point device AP MLD determines a first radio frame, where the first radio frame is used to indicate scheduling information of each first restricted target wake-up time R-TWT joined by the first station device STA;

[0042] The first STA is attached to a first non-AP MLD supporting multi-link station device and operates on a communication link corresponding to a first frequency band; the first non-AP MLD is associated with the first AP MLD; the first STA is located in an overlapping basic service set (OBSS) formed by the first AP MLD and the second AP MLD in the first frequency band;

[0043] The first radio frame is sent to the second AP MLD.

[0044] In the above embodiment, when the first AP MLD and the second AP MLD form an OBSS in the first frequency band, and the first STA (operating on the communication link corresponding to the first frequency band) attached to the first Non-AP MLD associated with the first AP MLD is located in the OBSS, the first AP MLD can indicate the scheduling information of each R-TWT joined by the first STA through the first wireless frame, thereby realizing the scheduling information interaction of R-TWT between the first AP MLD and the second AP MLD.

[0045] In combination with some embodiments of the first aspect, in some embodiments, the above-mentioned first wireless frame includes at least one first information field, and each of the above-mentioned first information fields is used to indicate the scheduling information of a first R-TWT joined by the above-mentioned first STA.

[0046] In the above embodiment, the first wireless frame can indicate the scheduling information of a first R-TWT joined by the first STA through each first information field, which is conducive to the second AP MLD quickly determining the number of first R-TWTs joined by the first STA and the scheduling information of each first R-TWT.

[0047] In conjunction with some embodiments of the first aspect, in some embodiments, each of the first information fields includes at least one of the following:

[0048] A first sub-information field, where the first sub-information field is used to indicate the broadcast target wakeup time identifier of the corresponding first R-TWT;

[0049] A second sub-information field, where the second sub-information field is used to indicate a target wake-up time of the corresponding first R-TWT;

[0050] A third sub-information field, wherein the third sub-information field is used to indicate the duration of the corresponding first R-TWT;

[0051] The fourth sub-information field, the above-mentioned fourth sub-information field includes multiple first identification bits, each of the above-mentioned first identification bits indicates through a first value that an affiliated STA of the above-mentioned first Non-AP MLD is a scheduling member of the corresponding first R-TWT, and indicates through a second value that an affiliated STA of the above-mentioned first Non-AP MLD is not a scheduling member of the corresponding first R-TWT.

[0052] In the above embodiment, each first information field can indicate different scheduling information of the corresponding first R-TWT through different sub-information fields, and can also indicate the scheduling status of the affiliated STA of the first Non-AP MLD associated with the first AP MLD and the first R-TWT through multiple identification bits, which is conducive to the distinguishing indication and determination of scheduling information.

[0053] In conjunction with some embodiments of the first aspect, in some embodiments, the above method further includes:

[0054] receiving a second radio frame sent by the second AP MLD, where the second radio frame is used to indicate scheduling information of a second R-TWT that has established a communication link with the first AP;

[0055] In which, the above-mentioned first AP is attached to the above-mentioned second AP MLD and operates in the communication link corresponding to the above-mentioned first frequency band; the above-mentioned second wireless frame is sent by the above-mentioned second AP MLD when the service time of the above-mentioned second R-TWT overlaps with the service time of at least one of the above-mentioned first R-TWT.

[0056] In the above embodiment, when the first AP MLD and the second AP MLD form an OBSS in the first frequency band, and the first STA (working on the communication link corresponding to the first frequency band) attached to the first Non-AP MLD associated with the first AP MLD is located in the OBSS, the second AP MLD can indicate the scheduling information of the second R-TWT joined by the first AP (the attached AP attached to the second AP MLD and working on the communication link corresponding to the first frequency band) through the second wireless frame, thereby further realizing the scheduling information interaction of the R-TWT between the first AP MLD and the second AP MLD.

[0057] In conjunction with some embodiments of the first aspect, in some embodiments, the second radio frame includes at least one of the following:

[0058] The fifth sub-information field is used to indicate the broadcast target wakeup time identifier of the second R-TWT;

[0059] The sixth sub-information field is used to indicate the target wake-up time of the second R-TWT;

[0060] A seventh sub-information field, where the seventh sub-information field is used to indicate the duration of the second R-TWT;

[0061] The eighth sub-information field, the above-mentioned eighth sub-information field includes multiple second identification bits, each of the above-mentioned second identification bits indicates through a first value that an affiliated STA of the second Non-AP MLD is a scheduling member of the above-mentioned second R-TWT, and indicates through a second value that an affiliated STA of the above-mentioned second Non-AP MLD is not a scheduling member of the above-mentioned second R-TWT; the above-mentioned second Non-AP MLD is associated with the above-mentioned second AP MLD.

[0062] In the above embodiment, the second wireless frame can indicate different scheduling information of the second R-TWT through different sub-information fields, and can also indicate the scheduling status of the affiliated STA of the second Non-AP MLD associated with the second AP MLD and the second R-TWT through multiple identification bits, which is conducive to the distinguishing indication and determination of scheduling information.

[0063] In combination with some embodiments of the first aspect, in some embodiments, the above-mentioned first wireless frame and the above-mentioned second wireless frame are R-TWT coordination notification frames, R-TWT coordination indication frames or R-TWT coordination declaration frames.

[0064] In the above embodiment, the first AP MLD and the second AP MLD can use existing radio frames to implement the indication of R-TWT scheduling information, which is beneficial to saving signaling resources.

[0065] In conjunction with some embodiments of the first aspect, in some embodiments, the above method further includes:

[0066] Sending a third radio frame to the second AP MLD;

[0067] The third wireless frame is used to request coordination of the third R-TWT, and the third R-TWT is the first R-TWT whose service time overlaps with the service time of the second R-TWT.

[0068] In the above embodiment, the first AP MLD may coordinate the third R-TWT whose service time overlaps with the second R-TWT through the third radio frame request to ensure the effective transmission of the low-latency service.

[0069] In combination with some embodiments of the first aspect, in some embodiments, the above-mentioned third wireless frame is an R-TWT coordination request frame, and the above-mentioned third wireless frame also includes the broadcast target wake-up time identifier of the above-mentioned third R-TWT.

[0070] In the above embodiment, the first AP MLD can utilize the existing radio frame request to perform R-TWT coordination, which is beneficial to saving signaling resources.

[0071] In combination with some embodiments of the first aspect, in some embodiments, if all subordinate STAs of the first Non-AP MLD are scheduling members of the third R-TWT, or the second R-TWT has been established on the communication links of all subordinate APs of the second AP MLD, the third radio frame is used to request coordination of the third R-TWT using coordinated orthogonal frequency division multiple access or coordinated spatial multiplexing;

[0072] If at least one subordinate STA of the above-mentioned first Non-AP MLD is not a scheduling member of the above-mentioned third R-TWT, and the above-mentioned second R-TWT is not established on the communication link on which at least one subordinate AP of the above-mentioned second AP MLD works, the above-mentioned third wireless frame is used to request link migration of the above-mentioned third R-TWT.

[0073] In the above embodiment, the first AP MLD may request different coordination methods to coordinate the third R-TWT according to the R-TWT scheduling status of its affiliated STA and the R-TWT establishment status of the second AP MLD, thereby improving the diversity of R-TWT coordination.

[0074] In combination with some embodiments of the first aspect, in some embodiments, the above-mentioned third wireless frame includes an R-TWT coordination type information field, and the above-mentioned R-TWT coordination type information field requests to coordinate the above-mentioned third R-TWT by adopting a coordinated orthogonal frequency division multiple access method through a third value, requests to coordinate the above-mentioned third R-TWT by adopting a coordinated spatial multiplexing method through a fourth value, and requests to perform link migration on the above-mentioned third R-TWT through a fifth value.

[0075] In the above embodiment, the third radio frame may indicate different R-TWT coordination modes through different identification values, which is helpful for the second AP MLD to quickly determine the R-TWT coordination mode requested by the first AP MLD.

[0076] In conjunction with some embodiments of the first aspect, in some embodiments, if the third radio frame is used to request coordination of the third R-TWT using a coordinated orthogonal frequency division multiple access method or a coordinated spatial multiplexing method, the third radio frame further includes a coordination parameter corresponding to the corresponding coordination method;

[0077] If the third wireless frame is used to request link migration of the third R-TWT, the third wireless frame also includes a first link identifier, and the first link identifier is used to indicate the first communication link of the third R-TWT to be applied after link migration of the third R-TWT.

[0078] In the above embodiment, when the first AP MLD requests to coordinate the above-mentioned third R-TWT using coordinated orthogonal frequency division multiple access or coordinated spatial multiplexing, it can provide corresponding coordination parameters to the second AP MLD; when requesting to perform link migration on the third R-TWT, it can provide the link identifier of the migrated communication link to the second AP MLD, which is conducive to improving the R-TWT coordination efficiency.

[0079] In conjunction with some embodiments of the first aspect, in some embodiments, the above method further includes:

[0080] Receive a fourth wireless frame sent by the second AP MLD, where the fourth wireless frame is used to indicate acceptance or rejection of coordination of the third R-TWT.

[0081] In the above embodiment, the second AP MLD may indicate acceptance or rejection of coordination of the third R-TWT through the fourth radio frame, which is conducive to improving the R-TWT coordination mechanism.

[0082] In combination with some embodiments of the first aspect, in some embodiments, the above-mentioned fourth wireless frame is used to indicate that when the above-mentioned third R-TWT is coordinated using a coordinated orthogonal frequency division multiple access method or a coordinated spatial multiplexing method, the above-mentioned third R-TWT is coordinated based on the coordination parameters corresponding to the corresponding coordination method.

[0083] In the above embodiment, when the first AP MLD accepts the coordinated orthogonal frequency division multiple access method or the coordinated spatial multiplexing method to coordinate the above-mentioned third R-TWT, the first AP MLD can perform R-TWT coordination according to the corresponding coordination parameters, which is conducive to improving the R-TWT coordination efficiency.

[0084] In combination with some embodiments of the first aspect, in some embodiments, the fourth wireless frame is used to indicate that when link migration of the third R-TWT is accepted, the third R-TWT is migrated to the first communication link.

[0085] In the above embodiment, the first AP MLD migrates the third R-TWT to the first communication link when the second AP MLD accepts link migration for the third R-TWT, which is beneficial to improving the R-TWT coordination efficiency.

[0086] In combination with some embodiments of the first aspect, in some embodiments, when the fourth radio frame is used to indicate acceptance of link migration of the third R-TWT, the fourth radio frame further includes a second link identifier;

[0087] The second link identifier is used to instruct the second AP MLD to apply the second communication link of the second R-TWT after link migration of the second R-TWT, and the first communication link is different from the second communication link.

[0088] In the above embodiment, when the second AP MLD accepts the link migration of the third R-TWT, the second AP MLD can also instruct the second AP MLD through the fourth wireless frame to perform link migration on the second R-TWT overlapping with the third R-TWT, and then apply the link identifier of the communication link of the second R-TWT, which is beneficial for the first AP MLD to determine the scheduling status of the second R-TWT of the second AP MLD.

[0089] In a second aspect, an embodiment of the present disclosure provides a communication method, the method comprising:

[0090] The second AP MLD receives a first radio frame sent by the first AP MLD, where the first radio frame is used to indicate scheduling information of each first R-TWT joined by the first STA;

[0091] The first STA is attached to the first Non-AP MLD and operates on a communication link corresponding to the first frequency band; the first Non-AP MLD is associated with the first AP MLD; and the first STA is located in an OBSS formed by the first AP MLD and the second AP MLD in the first frequency band.

[0092] In the above embodiment, when the first AP MLD and the second AP MLD form an OBSS in the first frequency band, and the first STA (operating on the communication link corresponding to the first frequency band) attached to the first Non-AP MLD associated with the first AP MLD is located in the OBSS, the first AP MLD can determine the scheduling information of each R-TWT joined by the first STA through the first wireless frame, thereby realizing the scheduling information interaction of R-TWT between the first AP MLD and the second AP MLD.

[0093] In combination with some embodiments of the second aspect, in some embodiments, the above-mentioned first wireless frame includes at least one first information field, and each of the above-mentioned first information fields is used to indicate the scheduling information of a first R-TWT joined by the above-mentioned first STA.

[0094] In the above embodiment, the first wireless frame can indicate the scheduling information of a first R-TWT joined by the first STA through each first information field, which is conducive to the second AP MLD quickly determining the number of first R-TWTs joined by the first STA and the scheduling information of each first R-TWT.

[0095] In conjunction with some embodiments of the second aspect, in some embodiments, each of the first information fields includes at least one of the following:

[0096] A first sub-information field, where the first sub-information field is used to indicate the broadcast target wakeup time identifier of the corresponding first R-TWT;

[0097] A second sub-information field, where the second sub-information field is used to indicate a target wake-up time of the corresponding first R-TWT;

[0098] A third sub-information field, wherein the third sub-information field is used to indicate the duration of the corresponding first R-TWT;

[0099] The fourth sub-information field, the above-mentioned fourth sub-information field includes multiple first identification bits, each of the above-mentioned first identification bits indicates through a first value that an affiliated STA of the above-mentioned first Non-AP MLD is a scheduling member of the corresponding first R-TWT, and indicates through a second value that an affiliated STA of the above-mentioned first Non-AP MLD is not a scheduling member of the corresponding first R-TWT.

[0100] In the above embodiment, each first information field can indicate different scheduling information of the corresponding first R-TWT through different sub-information fields, and can also indicate the scheduling status of the affiliated STA of the first Non-AP MLD associated with the first AP MLD and the first R-TWT through multiple identification bits, which is conducive to the distinguishing indication and determination of scheduling information.

[0101] In conjunction with some embodiments of the second aspect, in some embodiments, the above method further includes at least one of the following:

[0102] If the first AP does not support R-TWT scheduling, then during the service time of each first R-TWT, the second AP MLD does not communicate on the communication link in which the first AP operates.

[0103] The first AP is attached to the second AP MLD and operates on a communication link corresponding to the first frequency band.

[0104] If the communication link of the first AP does not establish a second R-TWT, then during the service time of each first R-TWT, the second AP MLD does not communicate on the communication link of the first AP.

[0105] If a second R-TWT has been established for the communication link of the first AP, and a fourth R-TWT exists in each of the first R-TWTs, the service time of which does not overlap with the service time of the second R-TWT, then during the service time of the fourth R-TWT, the second AP MLD does not communicate on the communication link of the first AP.

[0106] If the communication link of the above-mentioned first AP has established a second R-TWT, and there is a third R-TWT in each of the above-mentioned first R-TWTs whose service time overlaps with the service time of the above-mentioned second R-TWT, then a second wireless frame is sent to the above-mentioned first AP MLD, and the above-mentioned second wireless frame is used to indicate the scheduling information of the above-mentioned second R-TWT.

[0107] In the above embodiment, after determining the first scheduling information of the R-TWT joined by the first STA, the second AP MLD can adopt different communication response methods according to the R-TWT scheduling status of the first AP working on the same link as the first STA, and the service time overlap between the second R-TWT and the first R-TWT, which is conducive to achieving R-TWT adjustment and ensuring the transmission of low-latency services.

[0108] In conjunction with some embodiments of the second aspect, in some embodiments, the second radio frame includes at least one of the following:

[0109] The fifth sub-information field is used to indicate the broadcast target wakeup time identifier of the second R-TWT;

[0110] The sixth sub-information field is used to indicate the target wake-up time of the second TWT;

[0111] A seventh sub-information field, where the seventh sub-information field is used to indicate the duration of the second R-TWT;

[0112] The eighth sub-information field, the above-mentioned eighth sub-information field includes multiple second identification bits, each of the above-mentioned second identification bits indicates through a first value that an affiliated STA of the second Non-AP MLD is a scheduling member of the above-mentioned second R-TWT, and indicates through a second value that an affiliated STA of the above-mentioned second Non-AP MLD is not a scheduling member of the above-mentioned second R-TWT; the above-mentioned second Non-AP MLD is associated with the above-mentioned second AP MLD.

[0113] In the above embodiment, the second wireless frame can indicate different scheduling information of the second R-TWT through different sub-information fields, and can also indicate the scheduling status of the affiliated STA of the second Non-AP MLD associated with the second AP MLD and the second R-TWT through multiple identification bits, which is conducive to the distinguishing indication and determination of scheduling information.

[0114] In combination with some embodiments of the second aspect, in some embodiments, the above-mentioned first wireless frame and the above-mentioned second wireless frame are R-TWT coordination notification frames, R-TWT coordination indication frames or R-TWT coordination declaration frames.

[0115] In the above embodiment, the first AP MLD and the second AP MLD can use existing radio frames to implement the indication of R-TWT scheduling information, which is beneficial to saving signaling resources.

[0116] In conjunction with some embodiments of the second aspect, in some embodiments, after sending the second radio frame, the method further includes:

[0117] receiving a third radio frame sent by the first AP MLD;

[0118] The third wireless frame is used to request coordination of the third R-TWT, and the third R-TWT is the first R-TWT whose service time overlaps with the service time of the second R-TWT.

[0119] In the above embodiment, the first AP MLD may coordinate the third R-TWT whose service time overlaps with the second R-TWT through the third radio frame request to ensure the effective transmission of the low-latency service.

[0120] In combination with some embodiments of the second aspect, in some embodiments, the above-mentioned third wireless frame is an R-TWT coordination request frame, and the above-mentioned third wireless frame also includes the broadcast target wake-up time identifier of the above-mentioned third R-TWT.

[0121] In the above embodiment, the first AP MLD can utilize the existing radio frame request to perform R-TWT coordination, which is beneficial to saving signaling resources.

[0122] In conjunction with some embodiments of the second aspect, in some embodiments, if all subordinate STAs of the first Non-AP MLD are scheduling members of the third R-TWT, or the second R-TWT has been established on the communication links of all subordinate APs of the second AP MLD, the third radio frame is used to request coordination of the third R-TWT using coordinated orthogonal frequency division multiple access or coordinated spatial multiplexing;

[0123] If at least one subordinate STA of the above-mentioned first Non-AP MLD is not a scheduling member of the above-mentioned third R-TWT, and the above-mentioned second R-TWT is not established on the communication link on which at least one subordinate AP of the above-mentioned second AP MLD works, the above-mentioned third wireless frame is used to request link migration of the above-mentioned third R-TWT.

[0124] In the above embodiment, the first AP MLD may request different coordination methods to coordinate the third R-TWT according to the R-TWT scheduling status of its affiliated STA and the R-TWT establishment status of the second AP MLD, thereby improving the diversity of R-TWT coordination.

[0125] In combination with some embodiments of the second aspect, in some embodiments, the above-mentioned third wireless frame includes an R-TWT coordination type information field, and the above-mentioned R-TWT coordination type information field requests to coordinate the above-mentioned third R-TWT by adopting a coordinated orthogonal frequency division multiple access method through a third value, requests to coordinate the above-mentioned third R-TWT by adopting a coordinated spatial multiplexing method through a fourth value, and requests to perform link migration on the above-mentioned third R-TWT through a fifth value.

[0126] In the above embodiment, the third radio frame may indicate different R-TWT coordination modes through different identification values, which is helpful for the second AP MLD to quickly determine the R-TWT coordination mode requested by the first AP MLD.

[0127] In conjunction with some embodiments of the second aspect, in some embodiments, if the third radio frame is used to request coordination of the third R-TWT using a coordinated orthogonal frequency division multiple access method or a coordinated spatial multiplexing method, the third radio frame further includes a coordination parameter corresponding to the corresponding coordination method;

[0128] If the third wireless frame is used to request link migration of the third R-TWT, the third wireless frame also includes a first link identifier, and the first link identifier is used to indicate the first communication link of the third R-TWT to be applied after link migration of the third R-TWT.

[0129] In the above embodiment, when the first AP MLD requests to coordinate the above-mentioned third R-TWT using coordinated orthogonal frequency division multiple access or coordinated spatial multiplexing, it can provide corresponding coordination parameters to the second AP MLD; when requesting to perform link migration on the third R-TWT, it can provide the link identifier of the migrated communication link to the second AP MLD, which is conducive to improving the R-TWT coordination efficiency.

[0130] In conjunction with some embodiments of the second aspect, in some embodiments, the above method further includes:

[0131] A fourth wireless frame is sent to the first AP MLD, where the fourth wireless frame is used to indicate acceptance or rejection of coordination of the third R-TWT.

[0132] In the above embodiment, the second AP MLD may indicate acceptance or rejection of coordination of the third R-TWT through the fourth radio frame, which is conducive to improving the R-TWT coordination mechanism.

[0133] In combination with some embodiments of the second aspect, in some embodiments, the above-mentioned fourth wireless frame is used to indicate that when the above-mentioned third R-TWT is coordinated using a coordinated orthogonal frequency division multiple access method or a coordinated spatial multiplexing method, the above-mentioned third R-TWT is coordinated based on the coordination parameters corresponding to the corresponding coordination method.

[0134] In the above embodiment, when the second AP MLD accepts the coordinated orthogonal frequency division multiple access method or the coordinated spatial multiplexing method to coordinate the above third R-TWT, it can perform R-TWT coordination according to the corresponding coordination parameters, which is beneficial to improving the R-TWT coordination efficiency.

[0135] In conjunction with some embodiments of the second aspect, in some embodiments, the fourth radio frame is used to indicate that when link migration of the third R-TWT is accepted, the second R-TWT is migrated to the second communication link;

[0136] The second communication link is different from the first communication link, and the first communication link is a communication link of the third R-TWT applied after the first AP MLD performs link migration on the third R-TWT.

[0137] In the above embodiment, the first AP MLD migrates the third R-TWT to the first communication link when the second AP MLD accepts the link migration of the third R-TWT, which is beneficial to improving the R-TWT coordination efficiency, and can ensure that the communication links corresponding to the second AP MLD and the third R-TWT with overlapping service time are different, effectively ensuring that low-latency service transmission is not interfered with.

[0138] In combination with some embodiments of the second aspect, in some embodiments, the fourth wireless frame further includes a second link identifier of the second communication link.

[0139] In the above embodiment, when the second AP MLD accepts the link migration of the third R-TWT, the second AP MLD can also instruct the second AP MLD through the fourth wireless frame to perform link migration on the second R-TWT overlapping with the third R-TWT, and then apply the link identifier of the communication link of the second R-TWT, which is beneficial for the first AP MLD to determine the scheduling status of the second R-TWT of the second AP MLD.

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

[0141] a processing module, configured to determine a first radio frame, where the first radio frame is used to indicate scheduling information of each first restricted target wake-up time R-TWT to which a first station device STA joins;

[0142] The first STA is attached to a first non-AP MLD supporting multi-link site device and operates on a communication link corresponding to a first frequency band; the first non-AP MLD is associated with a first AP MLD; the first STA is located in an overlapping basic service set (OBSS) formed by the first AP MLD and the second AP MLD in the first frequency band;

[0143] The transceiver module is configured to send the first radio frame to the second AP MLD.

[0144] In a fourth aspect, an embodiment of the present disclosure provides an AP MLD, including:

[0145] a transceiver module, configured to receive a first radio frame sent by a first AP MLD, where the first radio frame is used to indicate scheduling information of each first R-TWT joined by a first STA;

[0146] The first STA is attached to the first Non-AP MLD and operates on a communication link corresponding to the first frequency band; the first Non-AP MLD is associated with the first AP MLD; and the first STA is located in the OBSS formed by the first AP MLD and the second AP MLD in the first frequency band.

[0147] In a fifth aspect, an embodiment of the present disclosure provides an AP MLD, comprising one or more processors;

[0148] The AP MLD is used to execute the communication method provided in the first aspect and the optional implementation manner of the first aspect.

[0149] In a sixth aspect, an embodiment of the present disclosure provides an AP MLD, comprising one or more processors;

[0150] The AP MLD is used to execute the communication method provided in the second aspect and the optional implementation manner of the second aspect.

[0151] In the seventh 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.

[0152] In an eighth 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.

[0153] In a ninth 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.

[0154] In a tenth 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.

[0155] In the eleventh aspect, an embodiment of the present disclosure proposes a communication system, which includes a first AP MLD and a second AP MLD; wherein the first AP MLD is configured to execute the method described in the first aspect and the optional implementation of the first aspect, and the second AP MLD is configured to execute the method described in the second aspect and the optional implementation of the second aspect.

[0156] It is understandable that the aforementioned communication devices, AP MLDs, communication systems, storage media, program products, computer programs, chips, or chip systems are all used to perform the methods proposed in the embodiments of the present disclosure. Therefore, the beneficial effects that can be achieved can be referenced to the beneficial effects of the corresponding methods and will not be repeated here.

[0157] The present disclosure provides a communication method, an AP MLD, and a storage medium. In some embodiments, the terms communication method, information processing method, and communication method are interchangeable, the terms communication device, information processing device, and information processing system are interchangeable, and the terms information processing system, communication system, and information processing device are interchangeable.

[0158] 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.

[0159] 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.

[0160] 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.

[0161] 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.

[0162] In the embodiments of the present disclosure, “plurality” refers to two or more.

[0163] In some embodiments, the terms "at least one," "one or more," "a plurality of," "multiple," etc. may be used interchangeably.

[0164] 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.

[0165] 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.

[0166] 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.

[0167] 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.

[0168] 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.

[0169] 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.

[0170] In some embodiments, obtaining data, information, etc. may comply with the laws and regulations of the country where the data is obtained.

[0171] In some embodiments, data, information, etc. may be obtained with the user's consent.

[0172] 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.

[0173] FIG1 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 communication system 100 includes a first AP MLD 101 and a second AP MLD 102 .

[0175] In some embodiments, the first AP MLD 101 and the second AP MLD 102 include multiple subordinate APs. Each AP acts as a bridge between a wired network and a wireless network, connecting wireless network clients and then connecting the wireless network to Ethernet. Specifically, each AP can be a terminal device or network device equipped with a Wi-Fi chip.

[0176] The first AP MLD 101 and the second AP MLD 102 can communicate with a STA or a non-AP MLD including multiple attached STAs. The STA can be a device including a wireless communication chip supporting WiFi communication, a wireless sensor, or a wireless communication terminal. Optionally, the wireless communication terminal can be, for example, at least one of a mobile phone, a wearable device, an IoT device supporting WiFi communication, a car with WiFi communication, a smart car, a tablet computer, a computer with wireless transceiver capabilities, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal device used in industrial control, a wireless terminal device used in self-driving, a wireless terminal device used in remote medical surgery, a wireless terminal device used in a smart grid, a wireless terminal device used in transportation safety, a wireless terminal device used in a smart city, and a wireless terminal device used in a smart home, but is not limited thereto.

[0177] Each subordinate AP of the first AP MLD101 and the second AP MLD102 operates on a communication link corresponding to a different frequency band, such as a communication link corresponding to 2.4 GHz, 5 GHz, and 6 GHz. Similarly, each subordinate STA of the non-AP MLD also operates on a communication link corresponding to a different frequency band, and each subordinate AP of the first AP MLD101 and the second AP MLD102 can establish a communication link and communicate with the STA of the corresponding frequency band.

[0178] 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.

[0179] In a wireless LAN, a Basic Service Set (BSS) consists of an AP (AP MLD) and STAs (non-AP MLDs) that communicate with it. If the coverage of two or more BSSs in the same frequency band overlaps, they form Overlapping Basic Service Sets (OBSSs). As shown in Figure 2, the subordinate APs of AP MLD1 and AP MLD2 can form BSS1-1 and BSS2-1, respectively, in the 5 GHz frequency band. The subordinate APs of AP MLD1 and AP MLD2 can form BSS1-2 and BSS2-2, respectively, in the 2.4 GHz frequency band. Non-AP MLD1-2 and Non-AP MLD1-1 are associated with AP MLD1, and Non-AP MLD2-2 is associated with AP MLD2.

[0180] With the development trend of high frequency bands, WLAN equipment deployment is becoming more and more dense, and the phenomenon of overlapping basic service sets is becoming more and more common. In the prior art, R-TWT is a protection mechanism defined from the perspective of transmitting low-latency services within a single basic service set. The STA in a single BSS suspends or terminates its transmission opportunities or other non-low-latency service transmissions before joining the SP of the R-TWT to ensure the effective transmission of low-latency services. When the scheduling members of the R-TWT are located in the OBSS, its low-latency service transmission will be interfered with by the AP that forms the OBSS, especially when the R-TWT SPs of multiple APs forming the OBSS overlap, the interference is more serious. On the other hand, the STA in the BSS knows the R-TWT SP of the AP in the BSS where it is located, but the APs do not know the R-TWT SP scheduled by the AP, which may lead to transmission overlap, collision, retransmission, and hidden node problems in different BSSs, thereby leading to higher transmission delays.

[0181] As shown in FIG3 , AP MLD1 includes subordinate AP1-2 and subordinate AP1-1, AP MLD2 includes subordinate AP2-1 and subordinate AP2-2, Non-AP MLD1-1 includes subordinate STA1-2 and subordinate STA1-1, and Non-AP MLD includes subordinate STA2-1 and subordinate STA2-2.

[0182] Among them, AP1-2 and STA1-2 work on the communication link (link2) corresponding to the 5GHz frequency band and perform low-latency service transmission within R-TWT SP1, and AP2-2 and STA2-2 work on the communication link (link2) corresponding to the 5GHz frequency band and communicate.

[0183] AP1-1 and STA1-1 operate on the communication link (link 1) corresponding to the 2.4 GHz frequency band and transmit low-latency services within R-TWT SP1-1 and R-TWT SP1-2. AP2-1 and STA2-1 operate on the communication link (link 1) corresponding to the 2.4 GHz frequency band and transmit low-latency services within R-TWT SP2-1 and R-TWT SP2-2.

[0184] AP1-2 and STA1-2 form BSS1-2 in the 5 GHz frequency band, AP1-1 and STA1-1 form BSS1-1 in the 2.4 GHz frequency band, AP2-1 and STA2-1 form BSS2-1 in the 2.4 GHz frequency band, and AP2-2 and STA2-2 form BSS2-2 in the 5 GHz frequency band.

[0185] When BSS1-1 and BSS2-1 form an OBSS, since R-TWT SP1-2 and AP MLD SP2-2 overlap, the low-latency service transmission between AP1-1 and STA1-1 and the low-latency service transmission between AP2-1 and STA2-1 will interfere with each other.

[0186] To solve the above problems, the embodiments of the present disclosure provide a communication method to reduce interference in low-latency service transmission while ensuring transmission efficiency and throughput.

[0187] 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 part 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 connection relationships between the entities are illustrative only. The entities may be connected or disconnected, and the connection may be in any manner, including direct or indirect, wired or wireless.

[0188] 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, and 802.11ax, or their successors, such as 802.11bn, 802.11bf, and 802.11be. The 802.11be standard is also known as Wi-Fi 7 or the extremely high-throughput (EHT) standard, or even a later generation standard. 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 future fifth generation (5G) communication system.

[0189] 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 embodiments described are only some of the embodiments of the present disclosure and are not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present disclosure without making any creative efforts shall fall within the scope of protection of the present disclosure.

[0190] FIG4 is a schematic diagram illustrating an interaction of a communication method according to an embodiment of the present disclosure. The communication method shown in FIG4 includes:

[0191] In step S41 , the first AP MLD sends a first radio frame to the second AP MLD, where the first radio frame is used to indicate scheduling information of each first R-TWT to which the first STA joins.

[0192] In the embodiment of the present disclosure, the first AP MLD and the second AP MLD form an overlapping basic service set (OBSS) in the first frequency band, that is, the BSS formed by the first AP MLD in the first frequency band overlaps with the BSS formed by the second AP MLD in the first frequency band.

[0193] The first STA is attached to the first Non-AP MLD, and the first STA works on a communication link corresponding to the first frequency band.

[0194] The first STA may be a scheduling member of at least one R-TWT of the first AP MLD, configured to perform low-latency service transmission within the service time of each R-TWT to which it joins. Furthermore, each first R-TWT to which the first STA joins as indicated by the first radio frame is an R-TWT established by the first AP MLD.

[0195] The first AP MLD is associated with the first Non-AP MLD, and the first STA is located in an OBSS formed by the first AP MLD and the second AP MLD in the first frequency band.

[0196] As an example, the first AP MLD may be AP MLD1 in FIG. 2 , the second AP MLD may be AP MLD2 in FIG. 2 , and when the first frequency band is 2.4 GHz, the first STA is an affiliated STA of Non-AP MLD1-1 in FIG. 2 and operates in a communication link corresponding to 2.4 GHz.

[0197] In an embodiment of the present disclosure, the first wireless frame includes at least one first information field, and each first information field is used to indicate scheduling information of a first R-TWT to which the first STA joins.

[0198] Optionally, each first information field may include a first sub-information field, and the first sub-information field is used to indicate the identification information of the corresponding first R-TWT, such as the broadcast target wake-up time identifier (Broadcast TWT ID) of the corresponding first R-TWT.

[0199] Optionally, each first information field may include a second sub-information field, where the second sub-information field is used to indicate a target wake-up time of the corresponding first R-TWT;

[0200] Optionally, each first information field may include a third sub-information field, where the third sub-information field is used to indicate the duration of the corresponding first R-TWT;

[0201] Optionally, each first information domain may include a fourth sub-information domain, the fourth sub-information domain includes multiple first identification bits, each first identification bit indicates through a first value that the affiliated STA working on the corresponding communication link in a frequency band of the Non-AP MLD associated with the first AP MLD is a scheduling member of the corresponding first R-TWT, and through a second value that the affiliated STA working on the corresponding communication link in a frequency band of the Non-AP MLD associated with the first AP MLD is not a scheduling member of the corresponding first R-TWT.

[0202] That is, each first information field may include a fourth sub-information field, and the fourth sub-information field includes multiple first identification bits, each of which indicates, via a first value, that an affiliated STA of the first AP MLD is a scheduled member of the corresponding first R-TWT, and indicates, via a second value, that an affiliated STA of the first AP MLD is not a scheduled member of the corresponding first R-TWT. Furthermore, each affiliated STA of the first AP MLD operates on a different communication link, and each first identification bit corresponds to a communication link of a frequency band.

[0203] It should be noted that each first information field may include at least one of a first sub-information field, a second sub-information field, a third sub-information field, or a fourth sub-information field.

[0204] Step S42: The second AP MLD determines whether the first AP supports R-TWT scheduling.

[0205] In the embodiment of the present disclosure, after receiving the first radio frame, the second AP MLD may determine the first AP from the attached APs.

[0206] The first AP is attached to the second AP MLD and operates on a communication link corresponding to the first frequency band.

[0207] As an example, the first AP MLD may be AP MLD1 in Figure 2, and the second AP MLD may be AP MLD2 in Figure 2. When the first frequency band is 2.4 GHz, the first STA is a subordinate STA of Non-AP MLD1-1 in Figure 2 and operates on a communication link corresponding to 2.4 GHz. The first AP is a subordinate AP of AP MLD2 in Figure 2 and operates on a communication link corresponding to 2.4 GHz.

[0208] In an embodiment of the present disclosure, after the second AP MLD determines the first AP, it can determine whether the first AP supports R-TWT scheduling, that is, determine whether the first AP supports the R-TWT mechanism to perform low-latency service transmission within the service time of R-TWT.

[0209] If the first AP does not support R-TWT scheduling, execute step S44.

[0210] If the first AP supports R-TWT scheduling, execute step S43.

[0211] Step S43: The second AP MLD determines whether the communication link of the first AP is used to establish a second R-TWT.

[0212] In the disclosed embodiment, if the second AP MLD determines that the communication link operated by the first AP has not established a second R-TWT, then no communication is performed on the communication link operated by the first AP during the service time of each first R-TWT. In other words, the communication of the first AP during the service time of each first R-TWT is suspended or postponed.

[0213] If the second AP MLD determines that the communication link of the first AP has established a second R-TWT, step S45 is executed.

[0214] Step S44: During the service time of each first R-TWT, the second AP MLD does not communicate on the communication link in which the first AP works.

[0215] That is, during the service time of each first R-TWT, the second AP MLD suspends or postpones the communication of the first AP during the service time of each first R-TWT.

[0216] Step S45: If there is a fourth R-TWT in the first R-TWT whose service time does not overlap with the service time of the second R-TWT, the second AP MLD does not communicate on the communication link where the first AP works during the service time of the fourth R-TWT.

[0217] In the disclosed embodiment, when a fourth R-TWT exists in each first R-TWT whose service time does not overlap with the service time of the second R-TWT, the second AP MLD does not communicate on the communication link on which the first AP operates during the service time of the fourth R-TWT. That is, during the service time of the fourth R-TWT, the second AP MLD suspends or postpones the first AP's communication during the service time of each first R-TWT.

[0218] Step S46: If there is a third R-TWT in the first R-TWT whose service time overlaps with the service time of the second R-TWT, the second AP MLD sends a second wireless frame to the first AP MLD, and the second wireless frame is used to indicate the scheduling information of the second R-TWT.

[0219] In an embodiment of the present disclosure, the second wireless frame may include a fifth sub-information field, which is used to indicate identification information of the second R-TWT, such as a broadcast target wake-up time identifier (Broadcast TWT ID) of the second R-TWT.

[0220] Optionally, the second radio frame may include a sixth sub-information field, where the sixth sub-information field is used to indicate a target wake-up time of the second R-TWT;

[0221] Optionally, the second radio frame may include a seventh sub-information field, where the seventh sub-information field is used to indicate the duration of the second R-TWT;

[0222] Optionally, the second wireless frame may include an eighth sub-information field, the eighth sub-information field including multiple second identification bits, each second identification bit indicating through a first value that the affiliated STA working on the communication link corresponding to a frequency band of the Non-AP MLD associated with the second AP MLD is a scheduling member of the second R-TWT, and through a second value that the affiliated STA working on the communication link corresponding to a frequency band of the Non-AP MLD associated with the second AP MLD is not a scheduling member of the second R-TWT.

[0223] That is, the second radio frame may include an eighth sub-information field, the eighth sub-information field including multiple second identification bits, each second identification bit indicating, through a first value, that an affiliated STA of the second AP MLD is a scheduled member of the second R-TWT, and through a second value, indicating that an affiliated STA of the second AP MLD is not a scheduled member of the second R-TWT. In addition, each affiliated STA of the second AP MLD operates on a different communication link, and each second identification bit corresponds to a communication link of a frequency band.

[0224] It should be noted that the second radio frame may include at least one of the fifth sub-information field, the sixth sub-information field, the seventh sub-information field or the eighth sub-information field.

[0225] In an embodiment of the present disclosure, the second wireless frame may also be used to indicate a third R-TWT whose service time overlaps with the service time of the first R-TWT and the service time of the second R-TWT. For example, the second wireless frame may include identification information of the third R-TWT, such as a broadcast target wake-up time identifier (Broadcast TWT ID) of the third R-TWT.

[0226] In an embodiment of the present disclosure, the first wireless frame and the second wireless frame may be an R-TWT Coordination Notification frame, an R-TWT Coordination Indication frame, or an R-TWT Coordination Announcement frame.

[0227] Step S47: The first AP MLD sends a third radio frame to the second AP MLD, where the third radio frame is used to request coordination of the third R-TWT.

[0228] In an embodiment of the present disclosure, when there is a third R-TWT in the first R-TWT joined by the first STA whose service time overlaps with the service time of the second R-TWT, the first AP MLD may send a third wireless frame to the second AP MLD to request coordination of the third R-TWT.

[0229] In an embodiment of the present disclosure, if all subordinate STAs of the first Non-AP MLD (i.e., the Non-AP MLD to which the first STA is affiliated) are scheduling members of the third R-TWT, or a second R-TWT has been established on the communication links on which all subordinate APs of the second AP MLD work (i.e., all subordinate APs of the second AP MLD perform low-latency service transmission within the service time of the second R-TWT), the third wireless frame is used to request coordination of the third R-TWT using a coordinated orthogonal frequency division multiple access method or a coordinated spatial multiplexing method.

[0230] If at least one subordinate STA of the first AP MLD is not a scheduling member of the third R-TWT, and the second R-TWT is not established on the communication link on which at least one subordinate AP of the second AP MLD operates (that is, there is at least one subordinate AP of the second AP MLD that does not adopt the second R-TWT), the third wireless frame is used to request link migration of the third R-TWT.

[0231] In an embodiment of the present disclosure, the third wireless frame includes an R-TWT coordination type information field, the R-TWT coordination type information field requests through a third value to coordinate the third R-TWT using a coordinated orthogonal frequency division multiple access method, the R-TWT coordination type information field requests through a fourth value to coordinate the third R-TWT using a coordinated spatial multiplexing method, and the R-TWT coordination type information field requests through a fifth value to perform link migration on the third R-TWT.

[0232] Optionally, when the third wireless frame is used to request coordination of the third R-TWT using a coordinated orthogonal frequency division multiple access method or a coordinated spatial multiplexing method, the third wireless frame also includes coordination parameters corresponding to the corresponding coordination method.

[0233] Optionally, when the third wireless frame is used to request link migration of the third R-TWT, the third wireless frame also includes a first link identifier, and the first link identifier is used to indicate the first communication link of the third R-TWT to be applied after link migration of the third R-TWT.

[0234] As an example, the first AP MLD sends a third wireless frame to the second AP MLD, and the third wireless frame includes an R-TWT coordination type information field. The R-TWT coordination type information field requests the third R-TWT to be coordinated using a coordinated orthogonal frequency division multiple access method through a third value.

[0235] The third radio frame further includes coordination parameters corresponding to the coordinated orthogonal frequency division multiple access mode.

[0236] As an example, the first AP MLD sends a third wireless frame to the second AP MLD, and the third wireless frame includes an R-TWT coordination type information field. The R-TWT coordination type information field requests coordination of the third R-TWT using a coordinated spatial multiplexing method through a fourth value.

[0237] The third radio frame also includes coordination parameters corresponding to the coordinated spatial multiplexing mode.

[0238] As an example, the first AP MLD sends a third radio frame to the second AP MLD, where the third radio frame includes an R-TWT coordination type information field, and the R-TWT coordination type information field requests link migration of the third R-TWT through a fifth value.

[0239] The third wireless frame also includes the first link identifier of the first communication link of the third R-TWT after link migration of the third R-TWT.

[0240] In step S48, the second AP MLD sends a fourth radio frame to the first AP MLD, where the fourth radio frame is used to indicate acceptance or rejection of coordination of the third R-TWT.

[0241] In an embodiment of the present disclosure, if the third radio frame is used to request coordination of the third R-TWT using a coordinated orthogonal frequency division multiple access method, the fourth radio frame is used to indicate acceptance or rejection of coordination of the third R-TWT using a coordinated orthogonal frequency division multiple access method. If the third radio frame is used to request coordination of the third R-TWT using a coordinated spatial multiplexing method, the fourth radio frame is used to indicate acceptance or rejection of coordination of the third R-TWT using a coordinated spatial multiplexing method. If the third radio frame is used to request link migration of the third R-TWT, the fourth radio frame is used to indicate acceptance or rejection of link migration of the third R-TWT.

[0242] In step S49, when the second AP MLD accepts coordination of the third R-TWT, the first AP MLD coordinates the third R-TWT using coordinated orthogonal frequency division multiple access or coordinated spatial multiplexing, or performs link migration on the third R-TWT.

[0243] In an embodiment of the present disclosure, when the fourth radio frame indicates acceptance of coordinated OFDMA for the third R-TWT, the first AP MLD may coordinate the third R-TWT using coordination parameters corresponding to the coordinated OFDMA. That is, when low-latency services are transmitted within the service time of the third R-TWT, the first AP MLD uses coordinated OFDMA for spectrum multiplexing to ensure that low-latency service transmission is not interfered with by the first AP.

[0244] When the fourth radio frame indicates acceptance of coordinated spatial multiplexing for coordination of the third R-TWT, the first AP MLD may coordinate the third R-TWT using coordination parameters corresponding to the coordinated spatial multiplexing. That is, when transmitting low-latency services within the service time of the third R-TWT, the first AP MLD uses coordinated spatial multiplexing to multiplex spatial resources, ensuring that low-latency service transmission is not interfered with by the first AP.

[0245] When the fourth wireless frame is used to indicate the acceptance of link migration of the third R-TWT, the first AP MLD can migrate the third R-TWT to other communication links (the first communication link) to avoid overlapping the service time with the second R-TWT of the first AP on the same communication link, affecting low-latency service transmission.

[0246] Step S410: When accepting the coordination of the third R-TWT, the third R-TWT is coordinated using a coordinated orthogonal frequency division multiple access method or a coordinated spatial multiplexing method, or the link of the second R-TWT is migrated.

[0247] In an embodiment of the present disclosure, when the second AP MLD indicates through the fourth radio frame that it accepts the coordinated OFDMA mode for coordination of the third R-TWT, it may coordinate the third R-TWT using the coordination parameters corresponding to the coordinated OFDMA mode in the third radio frame. That is, when low-latency service transmission is performed within the service time of the third R-TWT, the second AP MLD uses the coordinated OFDMA mode for spectrum multiplexing to ensure that the low-latency service transmission is not interfered with by the first AP.

[0248] When the second AP MLD indicates, via the fourth radio frame, that it accepts coordinated spatial multiplexing for coordination of the third R-TWT, it may coordinate the third R-TWT using the coordination parameters corresponding to the coordinated spatial multiplexing in the third radio frame. That is, when transmitting low-latency services within the service time of the third R-TWT, the second AP MLD uses coordinated spatial multiplexing to multiplex spatial resources, ensuring that low-latency service transmission is not interfered with by the first AP.

[0249] When the second AP MLD indicates acceptance of link migration for the third R-TWT through the fourth radio frame, the second AP MLD may not adjust the second R-TWT. Alternatively, the second AP MLD may migrate the second R-TWT to another communication link (the second communication link) to avoid overlapping service time with the third R-TWT on the same communication link, thereby affecting low-latency service transmission.

[0250] Among them, when the fourth wireless frame is used to indicate the acceptance of link migration of the third R-TWT, the first AP MLD can migrate the third R-TWT to the first communication link. If the second AP MLD migrates the second AP MLD to the second communication link, it is necessary to ensure that the first communication link and the second communication link are different.

[0251] The communication method involved in the embodiments of the present disclosure may include at least one of the aforementioned steps and embodiments. For example, step S41 may be implemented as an independent embodiment, steps S41-S46 may be implemented as an independent embodiment, steps S41-S47 may be implemented as an independent embodiment, steps S41-S48 may be implemented as an independent embodiment, and steps S41-S410 may be implemented as an independent embodiment, but are not limited thereto.

[0252] FIG5 is a flow chart of a communication method according to an embodiment of the present disclosure. As shown in FIG5 , the method is executed by the first AP MLD, and the method includes:

[0253] Step S51: determine a first wireless frame, where the first wireless frame is used to indicate scheduling information of each first R-TWT to which the first STA joins.

[0254] In the embodiment of the present disclosure, the first AP MLD and the second AP MLD form an overlapping basic service set (OBSS) in the first frequency band, that is, the BSS formed by the first AP MLD in the first frequency band overlaps with the BSS formed by the second AP MLD in the first frequency band.

[0255] The first STA is attached to the first Non-AP MLD, and the first STA works on a communication link corresponding to the first frequency band.

[0256] The first AP MLD is associated with the first Non-AP MLD, and the first STA is located in an OBSS formed by the first AP MLD and the second AP MLD in the first frequency band.

[0257] The first STA may be a scheduling member of at least one R-TWT of the first AP MLD, and may be used to perform low-latency service transmission within the service time of each R-TWT to which it joins. Furthermore, each first R-TWT to which the first STA joins, as indicated by the first wireless frame, is an R-TWT established by the first AP MLD.

[0258] In an embodiment of the present disclosure, the first wireless frame includes at least one first information field, and each first information field is used to indicate scheduling information of a first R-TWT to which the first STA joins.

[0259] Optionally, each first information field may include a first sub-information field, and the first sub-information field is used to indicate the identification information of the corresponding first R-TWT, such as the broadcast target wake-up time identifier (Broadcast TWT ID) of the corresponding first R-TWT.

[0260] Optionally, each first information field may include a second sub-information field, where the second sub-information field is used to indicate a target wake-up time of the corresponding first R-TWT;

[0261] Optionally, each first information field may include a third sub-information field, where the third sub-information field is used to indicate the duration of the corresponding first R-TWT;

[0262] Optionally, each first information domain may include a fourth sub-information domain, the fourth sub-information domain includes multiple first identification bits, each first identification bit indicates through a first value that the affiliated STA working on the corresponding communication link in a frequency band of the Non-AP MLD associated with the first AP MLD is a scheduling member of the corresponding first R-TWT, and through a second value that the affiliated STA working on the corresponding communication link in a frequency band of the Non-AP MLD associated with the first AP MLD is not a scheduling member of the corresponding first R-TWT.

[0263] That is, each first information field may include a fourth sub-information field, and the fourth sub-information field includes multiple first identification bits, each of which indicates, via a first value, that an affiliated STA of the first AP MLD is a scheduled member of the corresponding first R-TWT, and indicates, via a second value, that an affiliated STA of the first AP MLD is not a scheduled member of the corresponding first R-TWT. Furthermore, each affiliated STA of the first AP MLD operates on a different communication link, and each first identification bit corresponds to a communication link of a frequency band.

[0264] It should be noted that each first information field may include at least one of a first sub-information field, a second sub-information field, a third sub-information field, or a fourth sub-information field.

[0265] Step S52: Send a first radio frame to the second AP MLD.

[0266] After determining the first radio frame, the first AP MLD may send the first radio frame to the second AP MLD.

[0267] Among them, the first wireless frame can be an R-TWT coordination notification (R-TWT Coordination Notification) frame, an R-TWT coordination indication (R-TWT Coordination Indication) frame or an R-TWT coordination announcement (R-TWT Coordination Announcement) frame.

[0268] FIG6 is a second flow chart of a communication method according to an embodiment of the present disclosure. As shown in FIG6 , the method is executed by the first AP MLD, and the method includes:

[0269] Step S61: determine a first wireless frame, where the first wireless frame is used to indicate scheduling information of each first R-TWT to which the first STA joins.

[0270] Step S62: Send a first radio frame to the second AP MLD.

[0271] In the embodiment of the present disclosure, the implementation of step S61-step S62 can refer to the implementation of step S51-step S52 in Figure 5, and will not be repeated here.

[0272] Step S63: Receive a second radio frame sent by the second AP MLD, where the second radio frame is used to indicate scheduling information of the second AP MLD established on the communication link where the first AP works.

[0273] In the embodiment of the present disclosure, the first AP is attached to the second AP MLD and operates on a communication link corresponding to the first frequency band.

[0274] The second wireless frame is sent by the second AP MLD when a second R-TWT has been established on the communication link where the first AP operates, and the service time of the second R-TWT overlaps with the service time of at least one first R-TWT.

[0275] In an embodiment of the present disclosure, the second wireless frame may include a fifth sub-information field, which is used to indicate identification information of the second R-TWT, such as a broadcast target wake-up time identifier (Broadcast TWT ID) of the second R-TWT.

[0276] Optionally, the second radio frame may include a sixth sub-information field, where the sixth sub-information field is used to indicate a target wake-up time of the second R-TWT;

[0277] Optionally, the second radio frame may include a seventh sub-information field, where the seventh sub-information field is used to indicate the duration of the second R-TWT;

[0278] Optionally, the second wireless frame may include an eighth sub-information field, the eighth sub-information field including multiple second identification bits, each second identification bit indicating through a first value that the affiliated STA working on the communication link corresponding to a frequency band of the Non-AP MLD associated with the second AP MLD is a scheduling member of the second R-TWT, and through a second value that the affiliated STA working on the communication link corresponding to a frequency band of the Non-AP MLD associated with the second AP MLD is not a scheduling member of the second R-TWT.

[0279] That is, the second radio frame may include an eighth sub-information field, the eighth sub-information field including multiple second identification bits, each second identification bit indicating, through a first value, that an affiliated STA of the second AP MLD is a scheduled member of the second R-TWT, and through a second value, indicating that an affiliated STA of the second AP MLD is not a scheduled member of the second R-TWT. In addition, each affiliated STA of the second AP MLD operates on a different communication link, and each second identification bit corresponds to a communication link of a frequency band.

[0280] It should be noted that the second radio frame may include at least one of the fifth sub-information field, the sixth sub-information field, the seventh sub-information field or the eighth sub-information field.

[0281] In an embodiment of the present disclosure, the second wireless frame may also be used to indicate a third R-TWT whose service time overlaps with the service time of the first R-TWT and the service time of the second R-TWT. For example, the second wireless frame may include identification information of the third R-TWT, such as a broadcast target wake-up time identifier (Broadcast TWT ID) of the third R-TWT.

[0282] In an embodiment of the present disclosure, the second wireless frame may be an R-TWT Coordination Notification frame, an R-TWT Coordination Indication frame, or an R-TWT Coordination Announcement frame.

[0283] Step S64: Send a third radio frame to the second AP MLD, where the third radio frame is used to request coordination of the third R-TWT.

[0284] In an embodiment of the present disclosure, when there is a third R-TWT in the first R-TWT joined by the first STA whose service time overlaps with the service time of the second R-TWT, the first AP MLD may send a third wireless frame to the second AP MLD to request coordination of the third R-TWT.

[0285] In an embodiment of the present disclosure, if all subordinate STAs of the first Non-AP MLD (i.e., the Non-AP MLD to which the first STA is affiliated) are scheduling members of the third R-TWT, or a second R-TWT has been established on the communication links on which all subordinate APs of the second AP MLD work (i.e., all subordinate APs of the second AP MLD perform low-latency service transmission within the service time of the second R-TWT), the third wireless frame is used to request coordination of the third R-TWT using a coordinated orthogonal frequency division multiple access method or a coordinated spatial multiplexing method.

[0286] If at least one subordinate STA of the first AP MLD is not a scheduling member of the third R-TWT, and the second R-TWT is not established on the communication link on which at least one subordinate AP of the second AP MLD operates (that is, there is at least one subordinate AP of the second AP MLD that does not adopt the second R-TWT), the third wireless frame is used to request link migration of the third R-TWT.

[0287] In an embodiment of the present disclosure, the third wireless frame includes an R-TWT coordination type information field, the R-TWT coordination type information field requests through a third value to coordinate the third R-TWT using a coordinated orthogonal frequency division multiple access method, the R-TWT coordination type information field requests through a fourth value to coordinate the third R-TWT using a coordinated spatial multiplexing method, and the R-TWT coordination type information field requests through a fifth value to perform link migration on the third R-TWT.

[0288] Optionally, when the third wireless frame is used to request coordination of the third R-TWT using a coordinated orthogonal frequency division multiple access method or a coordinated spatial multiplexing method, the third wireless frame also includes coordination parameters corresponding to the corresponding coordination method.

[0289] Optionally, when the third wireless frame is used to request link migration of the third R-TWT, the third wireless frame also includes a first link identifier, and the first link identifier is used to indicate the first communication link of the third R-TWT to be applied after link migration of the third R-TWT.

[0290] As an example, the first AP MLD sends a third wireless frame to the second AP MLD, and the third wireless frame includes an R-TWT coordination type information field. The R-TWT coordination type information field requests the third R-TWT to be coordinated using a coordinated orthogonal frequency division multiple access method through a third value.

[0291] The third radio frame further includes coordination parameters corresponding to the coordinated orthogonal frequency division multiple access mode.

[0292] As an example, the first AP MLD sends a third wireless frame to the second AP MLD, and the third wireless frame includes an R-TWT coordination type information field. The R-TWT coordination type information field requests coordination of the third R-TWT using a coordinated spatial multiplexing method through a fourth value.

[0293] The third radio frame also includes coordination parameters corresponding to the coordinated spatial multiplexing mode.

[0294] As an example, the first AP MLD sends a third radio frame to the second AP MLD, where the third radio frame includes an R-TWT coordination type information field, and the R-TWT coordination type information field requests link migration of the third R-TWT through a fifth value.

[0295] The third wireless frame also includes the first link identifier of the first communication link of the third R-TWT after link migration of the third R-TWT.

[0296] Step S65: Receive a fourth radio frame sent by the second AP MLD, where the fourth radio frame is used to indicate acceptance or rejection of coordination of the third R-TWT.

[0297] In an embodiment of the present disclosure, if the third radio frame is used to request coordination of the third R-TWT using a coordinated orthogonal frequency division multiple access method, the fourth radio frame is used to indicate acceptance or rejection of coordination of the third R-TWT using a coordinated orthogonal frequency division multiple access method. If the third radio frame is used to request coordination of the third R-TWT using a coordinated spatial multiplexing method, the fourth radio frame is used to indicate acceptance or rejection of coordination of the third R-TWT using a coordinated spatial multiplexing method. If the third radio frame is used to request link migration of the third R-TWT, the fourth radio frame is used to indicate acceptance or rejection of link migration of the third R-TWT.

[0298] In step S66, when the second AP MLD accepts coordination of the third R-TWT, the third R-TWT is coordinated using a coordinated orthogonal frequency division multiple access method or a coordinated spatial multiplexing method, or link migration is performed on the third R-TWT.

[0299] In an embodiment of the present disclosure, when the fourth radio frame indicates acceptance of coordinated OFDMA for the third R-TWT, the first AP MLD may coordinate the third R-TWT using coordination parameters corresponding to the coordinated OFDMA. That is, when low-latency services are transmitted within the service time of the third R-TWT, the first AP MLD uses coordinated OFDMA for spectrum multiplexing to ensure that low-latency service transmission is not interfered with by the first AP.

[0300] When the fourth radio frame indicates acceptance of coordinated spatial multiplexing for coordination of the third R-TWT, the first AP MLD may coordinate the third R-TWT using coordination parameters corresponding to the coordinated spatial multiplexing. That is, when transmitting low-latency services within the service time of the third R-TWT, the first AP MLD uses coordinated spatial multiplexing to multiplex spatial resources, ensuring that low-latency service transmission is not interfered with by the first AP.

[0301] When the fourth wireless frame is used to indicate the acceptance of link migration of the third R-TWT, the first AP MLD can migrate the third R-TWT to other communication links (the first communication link) to avoid overlapping the service time with the second R-TWT of the first AP on the same communication link, affecting low-latency service transmission.

[0302] The communication method involved in the embodiments of the present disclosure may include at least one of the aforementioned steps and embodiments. For example, step S61 may be implemented as an independent embodiment, steps S61-S62 may be implemented as an independent embodiment, steps S61-S63 may be implemented as an independent embodiment, steps S61-S64 may be implemented as an independent embodiment, and steps S61-S65 may be implemented as an independent embodiment, but are not limited thereto.

[0303] FIG7 is a third flow chart of a communication method according to an embodiment of the present disclosure. As shown in FIG7 , the method is executed by the second AP MLD, and the method includes:

[0304] Step S71: Receive a first wireless frame, where the first wireless frame is used to indicate scheduling information of each first R-TWT joined by the first STA.

[0305] In the embodiment of the present disclosure, the first AP MLD and the second AP MLD form an overlapping basic service set (OBSS) in the first frequency band, that is, the BSS formed by the first AP MLD in the first frequency band overlaps with the BSS formed by the second AP MLD in the first frequency band.

[0306] The first STA is attached to the first Non-AP MLD, and the first STA works on a communication link corresponding to the first frequency band.

[0307] The first AP MLD is associated with the first Non-AP MLD, and the first STA is located in an OBSS formed by the first AP MLD and the second AP MLD in the first frequency band.

[0308] The first STA may be a scheduling member of at least one R-TWT of the first AP MLD, configured to perform low-latency service transmission within the service time of each R-TWT to which it joins. Furthermore, each first R-TWT to which the first STA joins as indicated by the first radio frame is an R-TWT established by the first AP MLD.

[0309] In an embodiment of the present disclosure, the first wireless frame includes at least one first information field, and each first information field is used to indicate scheduling information of a first R-TWT to which the first STA joins.

[0310] Optionally, each first information field may include a first sub-information field, and the first sub-information field is used to indicate the identification information of the corresponding first R-TWT, such as the broadcast target wake-up time identifier (Broadcast TWT ID) of the corresponding first R-TWT.

[0311] Optionally, each first information field may include a second sub-information field, where the second sub-information field is used to indicate a target wake-up time of the corresponding first R-TWT;

[0312] Optionally, each first information field may include a third sub-information field, where the third sub-information field is used to indicate the duration of the corresponding first R-TWT;

[0313] Optionally, each first information domain may include a fourth sub-information domain, the fourth sub-information domain includes multiple first identification bits, each first identification bit indicates through a first value that the affiliated STA working on the corresponding communication link in a frequency band of the Non-AP MLD associated with the first AP MLD is a scheduling member of the corresponding first R-TWT, and through a second value that the affiliated STA working on the corresponding communication link in a frequency band of the Non-AP MLD associated with the first AP MLD is not a scheduling member of the corresponding first R-TWT.

[0314] That is, each first information field may include a fourth sub-information field, and the fourth sub-information field includes multiple first identification bits, each of which indicates, via a first value, that an affiliated STA of the first AP MLD is a scheduled member of the corresponding first R-TWT, and indicates, via a second value, that an affiliated STA of the first AP MLD is not a scheduled member of the corresponding first R-TWT. Furthermore, each affiliated STA of the first AP MLD operates on a different communication link, and each first identification bit corresponds to a communication link of a frequency band.

[0315] It should be noted that each first information field may include at least one of a first sub-information field, a second sub-information field, a third sub-information field, or a fourth sub-information field.

[0316] FIG8 is a fourth flow chart of a communication method according to an embodiment of the present disclosure. As shown in FIG8 , the method is executed by the second AP MLD, and the method includes:

[0317] Step S81: Receive a first radio frame sent by a first AP MLD, where the first radio frame is used to indicate scheduling information of each first R-TWT joined by a first STA.

[0318] In the embodiment of the present disclosure, the implementation of step S81 can refer to the implementation of step S71 in Figure 7, and will not be repeated here.

[0319] Step S82: Determine whether the first AP supports R-TWT scheduling.

[0320] In the embodiment of the present disclosure, after receiving the first radio frame, the second AP MLD may determine the first AP from the attached APs.

[0321] The first AP is attached to the second AP MLD and operates on a communication link corresponding to the first frequency band.

[0322] In an embodiment of the present disclosure, after the second AP MLD determines the first AP, it can determine whether the first AP supports R-TWT scheduling, that is, determine whether the first AP supports the R-TWT mechanism to perform low-latency service transmission within the service time of R-TWT.

[0323] If the first AP does not support R-TWT scheduling, execute step S84.

[0324] If the first AP supports R-TWT scheduling, execute step S83.

[0325] Step S83: Determine whether the communication link of the first AP establishes a second R-TWT.

[0326] In the disclosed embodiment, if the second AP MLD determines that the communication link operated by the first AP has not established a second R-TWT, then no communication is performed on the communication link operated by the first AP during the service time of each first R-TWT. In other words, the communication of the first AP during the service time of each first R-TWT is suspended or postponed.

[0327] If the second AP MLD determines that the communication link of the first AP has established a second R-TWT, step S85 is executed.

[0328] Step S84: During the service time of each first R-TWT, the second AP MLD does not communicate on the communication link in which the first AP works.

[0329] That is, during the service time of each first R-TWT, the second AP MLD suspends or postpones the communication of the first AP during the service time of each first R-TWT.

[0330] Step S85: If there is a fourth R-TWT in the first R-TWT whose service time does not overlap with the service time of the second R-TWT, the second AP MLD does not communicate on the communication link where the first AP works during the service time of the fourth R-TWT.

[0331] In the disclosed embodiment, when a fourth R-TWT exists in each first R-TWT whose service time does not overlap with the service time of the second R-TWT, the second AP MLD does not communicate on the communication link on which the first AP operates during the service time of the fourth R-TWT. That is, during the service time of the fourth R-TWT, the second AP MLD suspends or postpones the first AP's communication during the service time of each first R-TWT.

[0332] Step S86: If there is a third R-TWT in the first R-TWT whose service time overlaps with the service time of the second R-TWT, a second wireless frame is sent to the first AP MLD, and the second wireless frame is used to indicate the scheduling information of the second R-TWT.

[0333] In an embodiment of the present disclosure, the second wireless frame may include a fifth sub-information field, which is used to indicate identification information of the second R-TWT, such as a broadcast target wake-up time identifier (Broadcast TWT ID) of the second R-TWT.

[0334] Optionally, the second radio frame may include a sixth sub-information field, where the sixth sub-information field is used to indicate a target wake-up time of the second R-TWT;

[0335] Optionally, the second radio frame may include a seventh sub-information field, where the seventh sub-information field is used to indicate the duration of the second R-TWT;

[0336] Optionally, the second wireless frame may include an eighth sub-information field, the eighth sub-information field including multiple second identification bits, each second identification bit indicating through a first value that the affiliated STA working on the communication link corresponding to a frequency band of the Non-AP MLD associated with the second AP MLD is a scheduling member of the second R-TWT, and through a second value that the affiliated STA working on the communication link corresponding to a frequency band of the Non-AP MLD associated with the second AP MLD is not a scheduling member of the second R-TWT.

[0337] That is, the second radio frame may include an eighth sub-information field, the eighth sub-information field including multiple second identification bits, each second identification bit indicating, through a first value, that an affiliated STA of the second AP MLD is a scheduled member of the second R-TWT, and through a second value, indicating that an affiliated STA of the second AP MLD is not a scheduled member of the second R-TWT. In addition, each affiliated STA of the second AP MLD operates on a different communication link, and each second identification bit corresponds to a communication link of a frequency band.

[0338] It should be noted that the second radio frame may include at least one of the fifth sub-information field, the sixth sub-information field, the seventh sub-information field or the eighth sub-information field.

[0339] In an embodiment of the present disclosure, the second wireless frame may also be used to indicate a third R-TWT whose service time overlaps with the service time of the first R-TWT and the service time of the second R-TWT. For example, the second wireless frame may include identification information of the third R-TWT, such as a broadcast target wake-up time identifier (Broadcast TWT ID) of the third R-TWT.

[0340] In an embodiment of the present disclosure, the first wireless frame and the second wireless frame may be an R-TWT Coordination Notification frame, an R-TWT Coordination Indication frame, or an R-TWT Coordination Announcement frame.

[0341] Step S87: Receive a third radio frame sent by the first AP MLD, where the third radio frame is used to request coordination of the third R-TWT.

[0342] In an embodiment of the present disclosure, if all subordinate STAs of the first Non-AP MLD (i.e., the Non-AP MLD to which the first STA is affiliated) are scheduling members of the third R-TWT, or a second R-TWT has been established on the communication links on which all subordinate APs of the second AP MLD work (i.e., all subordinate APs of the second AP MLD perform low-latency service transmission within the service time of the second R-TWT), the third wireless frame is used to request coordination of the third R-TWT using a coordinated orthogonal frequency division multiple access method or a coordinated spatial multiplexing method.

[0343] If at least one subordinate STA of the first AP MLD is not a scheduling member of the third R-TWT, and the second R-TWT is not established on the communication link on which at least one subordinate AP of the second AP MLD operates (that is, there is at least one subordinate AP of the second AP MLD that does not adopt the second R-TWT), the third wireless frame is used to request link migration of the third R-TWT.

[0344] In an embodiment of the present disclosure, the third wireless frame includes an R-TWT coordination type information field, the R-TWT coordination type information field requests through a third value to coordinate the third R-TWT using a coordinated orthogonal frequency division multiple access method, the R-TWT coordination type information field requests through a fourth value to coordinate the third R-TWT using a coordinated spatial multiplexing method, and the R-TWT coordination type information field requests through a fifth value to perform link migration on the third R-TWT.

[0345] Optionally, when the third wireless frame is used to request coordination of the third R-TWT using a coordinated orthogonal frequency division multiple access method or a coordinated spatial multiplexing method, the third wireless frame also includes coordination parameters corresponding to the corresponding coordination method.

[0346] Optionally, when the third wireless frame is used to request link migration of the third R-TWT, the third wireless frame also includes a first link identifier, and the first link identifier is used to indicate the first communication link of the third R-TWT to be applied after link migration of the third R-TWT.

[0347] As an example, the second AP MLD receives the third wireless frame sent by the first AP MLD, and the third wireless frame includes an R-TWT coordination type information field. The R-TWT coordination type information field requests the third R-TWT to be coordinated using a coordinated orthogonal frequency division multiple access method through a third value.

[0348] The third radio frame further includes coordination parameters corresponding to the coordinated orthogonal frequency division multiple access mode.

[0349] As an example, the second AP MLD receives the third wireless frame sent by the first AP MLD, and the third wireless frame includes an R-TWT coordination type information field. The R-TWT coordination type information field requests coordination of the third R-TWT using a coordinated spatial multiplexing method through a fourth value.

[0350] The third radio frame also includes coordination parameters corresponding to the coordinated spatial multiplexing mode.

[0351] As an example, the second AP MLD receives the third radio frame sent by the first AP MLD, where the third radio frame includes an R-TWT coordination type information field, and the R-TWT coordination type information field requests link migration of the third R-TWT through a fifth value.

[0352] The third wireless frame also includes the first link identifier of the first communication link of the third R-TWT after link migration of the third R-TWT.

[0353] Step S88: Send a fourth radio frame to the first AP MLD, where the fourth radio frame is used to indicate acceptance or rejection of coordination of the third R-TWT.

[0354] In an embodiment of the present disclosure, if the third radio frame is used to request coordination of the third R-TWT using a coordinated orthogonal frequency division multiple access method, the fourth radio frame is used to indicate acceptance or rejection of coordination of the third R-TWT using a coordinated orthogonal frequency division multiple access method. If the third radio frame is used to request coordination of the third R-TWT using a coordinated spatial multiplexing method, the fourth radio frame is used to indicate acceptance or rejection of coordination of the third R-TWT using a coordinated spatial multiplexing method. If the third radio frame is used to request link migration of the third R-TWT, the fourth radio frame is used to indicate acceptance or rejection of link migration of the third R-TWT.

[0355] Step S89, when accepting the coordination of the third R-TWT, the third R-TWT is coordinated using a coordinated orthogonal frequency division multiple access method or a coordinated spatial multiplexing method, or the link of the second R-TWT is migrated.

[0356] In an embodiment of the present disclosure, when the second AP MLD indicates through the fourth radio frame that it accepts the coordinated OFDMA mode for coordination of the third R-TWT, it may coordinate the third R-TWT using the coordination parameters corresponding to the coordinated OFDMA mode in the third radio frame. That is, when low-latency service transmission is performed within the service time of the third R-TWT, the second AP MLD uses the coordinated OFDMA mode for spectrum multiplexing to ensure that the low-latency service transmission is not interfered with by the first AP.

[0357] When the second AP MLD indicates, via the fourth radio frame, that it accepts coordinated spatial multiplexing for coordination of the third R-TWT, it may coordinate the third R-TWT using the coordination parameters corresponding to the coordinated spatial multiplexing in the third radio frame. That is, when transmitting low-latency services within the service time of the third R-TWT, the second AP MLD uses coordinated spatial multiplexing to multiplex spatial resources, ensuring that low-latency service transmission is not interfered with by the first AP.

[0358] When the second AP MLD indicates acceptance of link migration for the third R-TWT through the fourth radio frame, the second AP MLD may not adjust the second R-TWT. Alternatively, the second AP MLD may migrate the second R-TWT to another communication link (the second communication link) to avoid overlapping service time with the third R-TWT on the same communication link, thereby affecting low-latency service transmission.

[0359] Among them, when the fourth wireless frame is used to indicate the acceptance of link migration of the third R-TWT, the first AP MLD can migrate the third R-TWT to the first communication link. If the second AP MLD migrates the second AP MLD to the second communication link, it is necessary to ensure that the first communication link and the second communication link are different.

[0360] The communication method involved in the embodiments of the present disclosure may include at least one of the aforementioned steps and embodiments. For example, step S81 may be implemented as an independent embodiment, steps S81-S86 may be implemented as an independent embodiment, steps S81-S87 may be implemented as an independent embodiment, steps S81-S88 may be implemented as an independent embodiment, and steps S81-S89 may be implemented as an independent embodiment, but are not limited thereto.

[0361] FIG9 a is a schematic diagram showing a structure of an AP MLD according to an embodiment of the present disclosure. As shown in FIG9 a , an AP MLD 910 may include: a processing module 911 and a transceiver module 912 .

[0362] In some embodiments, the processing module 911 is configured to determine a first radio frame, where the first radio frame is used to indicate scheduling information of each first restricted target wake-up time R-TWT to which the first station device STA joins;

[0363] The first STA is attached to a first non-AP MLD supporting multi-link site device and operates on a communication link corresponding to a first frequency band; the first non-AP MLD is associated with a first AP MLD; the first STA is located in an overlapping basic service set (OBSS) formed by the first AP MLD and the second AP MLD in the first frequency band;

[0364] The transceiver module 912 is configured to send the first radio frame to the second AP MLD.

[0365] Optionally, the processing module 911 is configured to execute at least one of the processing steps (e.g., step S49, step S51, step S61, and step S66, but not limited thereto) performed by the first AP MLD in any of the above methods, which are not described in detail here. The transceiver module 912 is configured to execute at least one of the transceiver steps (e.g., step S41, step S47, step S52, and steps S62-S65, but not limited thereto) performed by the first AP MLD in any of the above methods.

[0366] FIG9 b is another schematic diagram of the structure of an AP MLD according to an embodiment of the present disclosure. As shown in FIG9 b , the AP MLD 920 may include a transceiver module 921 and a processing module 922 .

[0367] In some embodiments, the transceiver module 921 is configured to receive a first radio frame sent by a first AP MLD, where the first radio frame is used to indicate scheduling information of each first R-TWT to which the first STA joins.

[0368] The first STA is attached to the first Non-AP MLD and operates on a communication link corresponding to the first frequency band; the first Non-AP MLD is associated with the first AP MLD; and the first STA is located in the OBSS formed by the first AP MLD and the second AP MLD in the first frequency band.

[0369] Optionally, the transceiver module 921 is configured to execute at least one of the transceiver steps (e.g., steps S46, S48, S71, S81, and S86-S88, but not limited thereto) performed by the second AP MLD in any of the above methods, which are not described in detail here. The processing module 922 is configured to execute at least one of the processing steps (e.g., steps S42-S45, S410, S82-S84, and S89, but not limited thereto) performed by the second AP MLD in any of the above methods.

[0370] 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.

[0371] 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.

[0372] Figure 10 is a schematic diagram of the structure of a communication device according to an embodiment of the present disclosure. Communication device 1000 may be a first AP MLD or a second AP MLD, or may be a chip, chip system, or processor that supports the first AP MLD or the second AP MLD in implementing any of the above methods. The communication device may be used to implement the methods described in the above method embodiments. For details, please refer to the description of the above method embodiments.

[0373] As shown in Figure 10, the communication device 1000 includes one or more processors 1001. Processor 1001 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, baseband chip, terminal device, terminal device chip, DU or CU, etc.), execute programs, and process program data. The communication device 1000 is used to perform any of the above methods.

[0374] In some embodiments, the communication device 1000 further includes one or more memories 1002 for storing instructions. Optionally, all or part of the memory 1002 may also be outside the communication device 1000.

[0375] In some embodiments, the communication device 1000 further includes one or more transceivers 1003. When the communication device 1000 includes one or more transceivers 1003, the transceiver 1003 performs at least one of the communication steps such as sending and / or receiving in the above method (for example, step S41, step S46-step S48, step S52, step S62-step S65, step S71, step S81, step S86-step S88, but not limited thereto), and the processor 1001 performs at least one of the other steps (for example, step S42-step S45, step S49-step S410, step S51, step S61, step S66, step S82-step S85, step S89, but not limited thereto).

[0376] 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.

[0377] In some embodiments, the communication device 1000 may include one or more interface circuits 1004. Optionally, the interface circuit 1004 is connected to the memory 1002. The interface circuit 1004 may be configured to receive signals from the memory 1002 or other devices, and may be configured to send signals to the memory 1002 or other devices. For example, the interface circuit 1004 may read instructions stored in the memory 1002 and send the instructions to the processor 1001.

[0378] The communication device 1000 described in the above embodiment may be the first AP MLD or the second AP MLD, but the scope of the communication device 1000 described in the present disclosure is not limited thereto, and the structure of the communication device 1000 may not be limited by FIG10. The communication device may be an independent device or may be part of a larger device. For example, the 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 and 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.

[0379] 11 is a schematic diagram of the structure of a chip 1100 according to an embodiment of the present disclosure. The chip 1100 includes one or more processors 1101, and the chip 1100 is configured to execute any of the above methods.

[0380] In some embodiments, chip 1100 further includes one or more interface circuits 1103. Optionally, interface circuit 1103 is connected to memory 1102. Interface circuit 1103 can be used to receive signals from memory 1102 or other devices, and interface circuit 1103 can be used to send signals to memory 1102 or other devices. For example, interface circuit 1103 can read instructions stored in memory 1102 and send the instructions to processor 1101.

[0381] In some embodiments, the interface circuit 1103 executes at least one of the communication steps such as sending and / or receiving in the above method (for example, step S41, step S46-step S48, step S52, step S62-step S65, step S71, step S81, step S86-step S88, but not limited to these), and the processor 1101 executes at least one of the other steps (for example, step S42-step S45, step S49-step S410, step S51, step S61, step S66, step S82-step S85, step S89, but not limited to these).

[0382] In some embodiments, terms such as interface circuit, interface, transceiver pin, and transceiver may be used interchangeably.

[0383] In some embodiments, the chip 1100 further includes one or more memories 1102 for storing instructions. Alternatively, all or part of the memory 1102 may be external to the chip 1100.

[0384] The present disclosure also provides a storage medium having instructions stored thereon. When the instructions are executed on the communication device 1000, the communication device 1000 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-transitor 11 storage medium, but is not limited thereto and may also be a temporary storage medium.

[0385] The present disclosure also provides a program product, which, when executed by the communication device 1000, enables the communication device 1000 to perform any of the above methods. Optionally, the program product is a computer program product.

[0386] 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: The method comprises: A first access point device AP MLD supporting multi-link determines a first radio frame, where the first radio frame is used to indicate scheduling information of each first restricted target wake-up time R-TWT joined by a first station device STA; Among them, the first STA is attached to the first station device Non-AP MLD supporting multi-links and works on the communication link corresponding to the first frequency band; the first Non-AP MLD is associated with the first AP MLD; the first STA is located in the overlapping basic service set OBSS formed by the first AP MLD and the second AP MLD in the first frequency band; The first radio frame is sent to the second AP MLD.

2. The method according to claim 1, characterized in that: The first wireless frame includes at least one first information field, and each of the first information fields is used to indicate scheduling information of a first R-TWT joined by the first STA.

3. The method according to claim 2, characterized in that Each of the first information fields includes at least one of the following: A first sub-information field, where the first sub-information field is used to indicate a broadcast target wake-up time identifier of a corresponding first R-TWT; A second sub-information field, where the second sub-information field is used to indicate a target wake-up time of the corresponding first R-TWT; A third sub-information field, wherein the third sub-information field is used to indicate the duration of the corresponding first R-TWT; The fourth sub-information domain includes multiple first identification bits, each of the first identification bits indicates through a first value that a subordinate STA of the first Non-AP MLD is a scheduling member of the corresponding first R-TWT, and indicates through a second value that a subordinate STA of the first Non-AP MLD is not a scheduling member of the corresponding first R-TWT.

4. The method according to claim 1, characterized in that: The method further comprises: Receive a second radio frame sent by the second AP MLD, where the second radio frame is used to indicate scheduling information of a second R-TWT that has established a communication link for the first AP; Among them, the first AP is attached to the second AP MLD and works on the communication link corresponding to the first frequency band; the second wireless frame is sent by the second AP MLD when the service time of the second R-TWT overlaps with the service time of at least one of the first R-TWT.

5. The method according to claim 4, characterized in that The second radio frame includes at least one of the following: A fifth sub-information field, where the fifth sub-information field is used to indicate a broadcast target wake-up time identifier of the second R-TWT; A sixth sub-information field, where the sixth sub-information field is used to indicate a target wake-up time of the second R-TWT; A seventh sub-information field, where the seventh sub-information field is used to indicate the duration of the second R-TWT; The eighth sub-information field includes multiple second identification bits, each of the second identification bits indicates through a first value that a subordinate STA of the second Non-AP MLD is a scheduling member of the second R-TWT, and indicates through a second value that a subordinate STA of the second Non-AP MLD is not a scheduling member of the second R-TWT; the second Non-AP MLD is associated with the second AP MLD.

6. The method according to claim 4, characterized in that The method further comprises: Sending a third radio frame to the second AP MLD; The third wireless frame is used to request coordination of a third R-TWT, and the third R-TWT is the first R-TWT whose service time in the first R-TWT overlaps with the service time of the second R-TWT.

7. The method according to claim 6, characterized in that The third wireless frame is an R-TWT coordination request frame, and the third wireless frame also includes a broadcast target wake-up time identifier of the third R-TWT.

8. The method according to claim 6, characterized in that If all subordinate STAs of the first Non-AP MLD are scheduling members of the third R-TWT, or the second R-TWT has been established on the communication links where all subordinate APs of the second AP MLD work, the third wireless frame is used to request coordination of the third R-TWT using a coordinated orthogonal frequency division multiple access method or a coordinated spatial multiplexing method; If at least one subordinate STA of the first Non-AP MLD is not a scheduling member of the third R-TWT, and the second R-TWT is not established on the communication link on which at least one subordinate AP of the second AP MLD works, the third wireless frame is used to request link migration of the third R-TWT.

9. The method according to claim 8, characterized in that The third wireless frame includes an R-TWT coordination type information field, and the R-TWT coordination type information field coordinates the third R-TWT by adopting a coordinated orthogonal frequency division multiple access method through a third value request, coordinates the third R-TWT by adopting a coordinated spatial multiplexing method through a fourth value request, and performs link migration on the third R-TWT through a fifth value request.

10. The method according to claim 8, characterized in that If the third radio frame is used to request the third R-TWT to be coordinated by a coordinated orthogonal frequency division multiple access method or a coordinated spatial multiplexing method, the third radio frame further includes a coordination parameter corresponding to the corresponding coordination method; If the third wireless frame is used to request link migration of the third R-TWT, the third wireless frame also includes a first link identifier, and the first link identifier is used to indicate the first communication link of the third R-TWT to be applied after link migration of the third R-TWT.

11. The method according to claim 8, characterized in that The method further comprises: Receive a fourth wireless frame sent by the second AP MLD, where the fourth wireless frame is used to indicate acceptance or rejection of coordination of the third R-TWT.

12. The method according to claim 11, characterized in that The fourth wireless frame is used to indicate that when the third R-TWT is coordinated using a coordinated orthogonal frequency division multiple access method or a coordinated spatial multiplexing method, the third R-TWT is coordinated based on the coordination parameters corresponding to the corresponding coordination method.

13. The method according to claim 11, characterized in that The fourth wireless frame is used to indicate that when link migration of the third R-TWT is accepted, the third R-TWT is migrated to the first communication link.

14. The method according to claim 13, characterized in that When the fourth wireless frame is used to indicate acceptance of link migration of the third R-TWT, the fourth wireless frame further includes a second link identifier; The second link identifier is used to instruct the second AP MLD to apply the second communication link of the second R-TWT after link migration of the second R-TWT, and the first communication link is different from the second communication link.

15. A communication method, characterized in that: The method comprises: The second AP MLD receives a first radio frame sent by the first AP MLD, where the first radio frame is used to indicate scheduling information of each first R-TWT joined by the first STA; Among them, the first STA is attached to the first Non-AP MLD and works on the communication link corresponding to the first frequency band; the first Non-AP MLD is associated with the first AP MLD; the first STA is located in the OBSS formed by the first AP MLD and the second AP MLD in the first frequency band.

16. The method according to claim 15, characterized in that The first wireless frame includes at least one first information field, and each of the first information fields is used to indicate scheduling information of a first R-TWT joined by the first STA.

17. The method according to claim 16, characterized in that Each of the first information fields includes at least one of the following: A first sub-information field, where the first sub-information field is used to indicate a broadcast target wake-up time identifier of a corresponding first R-TWT; A second sub-information field, where the second sub-information field is used to indicate a target wake-up time of the corresponding first R-TWT; A third sub-information field, wherein the third sub-information field is used to indicate the duration of the corresponding first R-TWT; The fourth sub-information domain includes multiple first identification bits, each of the first identification bits indicates through a first value that a subordinate STA of the first Non-AP MLD is a scheduling member of the corresponding first R-TWT, and indicates through a second value that a subordinate STA of the first Non-AP MLD is not a scheduling member of the corresponding first R-TWT.

18. The method according to claim 15, characterized in that The method further comprises at least one of the following: If the first AP does not support R-TWT scheduling, then during the service time of each of the first R-TWTs, the second AP MLD does not communicate on the communication link in which the first AP works; Wherein, the first AP is attached to the second AP MLD and operates on a communication link corresponding to the first frequency band; If the communication link where the first AP works does not establish a second R-TWT, the second AP MLD does not communicate on the communication link where the first AP works during the service time of each of the first R-TWTs; If the communication link of the first AP has established a second R-TWT, and there is a fourth R-TWT in each of the first R-TWTs whose service time does not overlap with the service time of the second R-TWT, then during the service time of the fourth R-TWT, the second AP MLD does not communicate on the communication link of the first AP; If the communication link of the first AP has established a second R-TWT, and there is a third R-TWT in each of the first R-TWTs whose service time overlaps with the service time of the second R-TWT, a second wireless frame is sent to the first AP MLD, and the second wireless frame is used to indicate the scheduling information of the second R-TWT.

19. The method according to claim 18, characterized in that The second radio frame includes at least one of the following: A fifth sub-information field, where the fifth sub-information field is used to indicate a broadcast target wake-up time identifier of the second R-TWT; A sixth sub-information field, where the sixth sub-information field is used to indicate a target wake-up time of a second-TWT; A seventh sub-information field, where the seventh sub-information field is used to indicate the duration of the second R-TWT; The eighth sub-information field includes multiple second identification bits, each of the second identification bits indicates through a first value that a subordinate STA of the second Non-AP MLD is a scheduling member of the second R-TWT, and indicates through a second value that a subordinate STA of the second Non-AP MLD is not a scheduling member of the second R-TWT; the second Non-AP MLD is associated with the second AP MLD.

20. The method according to claim 18, characterized in that After sending the second radio frame, the method further includes: receiving a third radio frame sent by the first AP MLD; The third wireless frame is used to request coordination of a third R-TWT, and the third R-TWT is the first R-TWT whose service time in the first R-TWT overlaps with the service time of the second R-TWT.

21. The method according to claim 20, characterized in that The third wireless frame is an R-TWT coordination request frame, and the third wireless frame also includes a broadcast target wake-up time identifier of the third R-TWT.

22. The method according to claim 20, characterized in that If all subordinate STAs of the first Non-AP MLD are scheduling members of the third R-TWT, or the second R-TWT has been established on the communication links where all subordinate APs of the second AP MLD work, the third wireless frame is used to request coordination of the third R-TWT using a coordinated orthogonal frequency division multiple access method or a coordinated spatial multiplexing method; If at least one subordinate STA of the first Non-AP MLD is not a scheduling member of the third R-TWT, and the second R-TWT is not established on the communication link on which at least one subordinate AP of the second AP MLD works, the third wireless frame is used to request link migration of the third R-TWT.

23. The method according to claim 22, characterized in that The third wireless frame includes an R-TWT coordination type information field, and the R-TWT coordination type information field coordinates the third R-TWT by adopting a coordinated orthogonal frequency division multiple access method through a third value request, coordinates the third R-TWT by adopting a coordinated spatial multiplexing method through a fourth value request, and performs link migration on the third R-TWT through a fifth value request.

24. The method according to claim 22, characterized in that If the third radio frame is used to request the third R-TWT to be coordinated by a coordinated orthogonal frequency division multiple access method or a coordinated spatial multiplexing method, the third radio frame further includes a coordination parameter corresponding to the corresponding coordination method; If the third wireless frame is used to request link migration of the third R-TWT, the third wireless frame also includes a first link identifier, and the first link identifier is used to indicate the first communication link of the third R-TWT to be applied after link migration of the third R-TWT.

25. The method according to claim 22, characterized in that The method further comprises: A fourth wireless frame is sent to the first AP MLD, where the fourth wireless frame is used to indicate acceptance or rejection of coordination of the third R-TWT.

26. The method according to claim 25, characterized in that The fourth wireless frame is used to indicate that when the third R-TWT is coordinated using a coordinated orthogonal frequency division multiple access method or a coordinated spatial multiplexing method, the third R-TWT is coordinated based on the coordination parameters corresponding to the corresponding coordination method.

27. The method according to claim 25, characterized in that The fourth wireless frame is used to indicate that when link migration of the third R-TWT is accepted, the second R-TWT is migrated to the second communication link; The second communication link is different from the first communication link, and the first communication link is the communication link of the third R-TWT applied after the first AP MLD performs link migration on the third R-TWT.

28. The method according to claim 27, characterized in that The fourth radio frame also includes a second link identifier of the second communication link.

29. An AP MLD, characterized in that: include: A processing module, used to determine a first radio frame, where the first radio frame is used to indicate scheduling information of each first restricted target wake-up time R-TWT joined by a first station device STA; Among them, the first STA is attached to the first station device Non-AP MLD supporting multi-links and works on the communication link corresponding to the first frequency band; the first Non-AP MLD is associated with the first AP MLD; the first STA is located in the overlapping basic service set OBSS formed by the first AP MLD and the second AP MLD in the first frequency band; The transceiver module is used to send the first radio frame to the second AP MLD.

30. An AP MLD, characterized in that: include: A transceiver module, configured to receive a first radio frame sent by a first AP MLD, where the first radio frame is used to indicate scheduling information of each first R-TWT joined by a first STA; The first STA is attached to the first Non-AP MLD and works on a communication link corresponding to the first frequency band; the first Non-AP MLD is associated with the first AP MLD; The first STA is located in an OBSS formed by the first AP MLD and the second AP MLD in the first frequency band.

31. An AP MLD, characterized in that: include: one or more processors; The AP MLD is used to execute the communication method described in any one of claims 1-14 or claims 15-28.

32. 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 14 or claims 15 to 28.

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