Method and communication device for perceptual measurement

Abstract

The invention provides a method for sensing measurement and a communication device. The method and the communication device are mainly applied to a scene in which an MLD in a WLAN carries out multi-link sensing. A scheme of a sensing measurement establishment process and a sensing measurement interaction process is provided for a scene in which a sensing initiating end and a sensing responding end need to remove links. In the embodiment of the invention, the perception initiating end or the perception responding end can remove the link and close the perception measurement session according to the type of the link to be removed, or reconfigure a new link to enable the perception measurement session to be continuously carried out; or under the condition that the link to be removed is a redundant link, the redundant link is removed, and the work of the sensing measurement session on other links is not influenced. Therefore, the corresponding operation is executed according to the type of the link to be removed, and unnecessary air interface occupation and resource waste possibly generated on other links can be avoided. Reconfiguration of a new link can reduce resource waste and signaling overhead compared to re-establishment of a sensing measurement session.

Description

Technical Field

[0001] The present application relates to the field of wireless communication technology, and more specifically, to a method and a communication device for sensing measurement. Background Art

[0002] The Institute of Electrical and Electronics Engineers (IEEE) 802.11bf standard presents perception measurements in the form of sessions. Currently, perception in 802.11bf is mainly focused on single-link scenarios. 802.11be, also known as the seventh generation of wireless fidelity (Wi-Fi 7), has introduced multi-link features. With the popularity of Wi-Fi 7, there will be more multi-link devices. In a multi-link scenario, when access point (AP) multi-link device (MLD) and non-AP MLD perform multi-link perception, there may be a scenario where AP MLD or non-AP MLD wants to remove or shut down a link. Since the functions of the links used for perception may be different in different perception scenarios, removing or shutting down different links will have different effects on perception measurements / perception results. For example, if the link to be removed is a link that must be used for perception measurement, removing the link will cause the perception reports on other links to be no longer valid, and will also cause other links to continue to perform perception interaction, resulting in unnecessary air interface occupancy and waste of resources.

[0003] Therefore, there is an urgent need for a solution to remove or shut down links in multi-link scenarios. Summary of the invention

[0004] The present application provides a method and a communication device for sensing measurement.

[0005] In the first aspect, a method for perception measurement is provided, which can be performed by a communication device or a module (for example, a chip or a circuit, etc.) applied to a communication device, without limitation. For ease of description, the following description is given by taking a communication device as an example. The communication device can, for example, be a perception initiator or a perception responder in a multi-link perception scenario. The method may include: determining a link type of a first link, the first link being a link to be removed from multiple links of a perception measurement session, the link type including a mandatory link, an optional link, or a redundant link; and removing the first link according to the link type of the first link.

[0006] In the present technical solution, when a perception initiating device or a perception responding device needs to remove a link, it removes the link according to the link type of the link to be removed (the link type refers to the link to be removed relative to the perception measurement, for example, the link to be removed may be a mandatory link, an optional link or a redundant link of the perception measurement), thereby providing reasonable solutions for different scenarios of link removal.

[0007] In combination with the first aspect, in certain implementations of the first aspect, removing the first link according to the link type of the first link includes: if the first link is the required link or the optional link, removing the first link after a timer expires; and the method also includes: closing the perception measurement session.

[0008] In this implementation, other operations or processes may be performed after the first link is removed based on the link type of the first link to be removed, so as to avoid some adverse effects after the first link is removed. For example, if the first link is a mandatory link, closing the perception measurement session after removing the first link can avoid the perception measurement session continuing on other links to generate invalid perception measurement reports, and waste of air interface resources caused by reporting perception measurement reports.

[0009] In combination with the first aspect, in certain implementations of the first aspect, removing the first link according to the link type of the first link includes: if the first link is the optional link, removing the first link after a timer expires; and the method also includes: performing link reconfiguration before the timer expires.

[0010] In this implementation, other operations or processing can be performed after removing the first link based on the link type of the first link to be removed, so as to provide a reasonable solution for removing a link in a multi-link scenario. For example, if the first link is an optional link, after removing the first link, you can choose not to close the perception measurement session, but reconfigure a new link before the timer expires, so as to continue the perception measurement on the new link after the new link configuration is completed. And the perception measurement on other links is not affected by the removal of the first link. It can be seen that the purpose of continuing the perception measurement can be achieved, and the overhead caused by re-establishing a new perception measurement session after closing the perception measurement session can be avoided.

[0011] In combination with the first aspect, in some implementations of the first aspect, removing the first link according to the link type of the first link includes: if the first link is the redundant link, removing the first link after a timer expires.

[0012] In this implementation, if the first link to be removed is a redundant link, the first link can be removed after the timer expires. Since the redundant link is a backup link for the perception measurement, the removal of the redundant link will not affect the execution of the perception measurement on other links.

[0013] In combination with the first aspect, in certain implementations of the first aspect, the link reconfiguration before the timer expires includes: sending a first request frame, the first request frame is used to indicate a request to reconfigure the second link of the perception measurement session, the first request frame carries information about the second link, and the information about the second link includes an identifier of the second link and perception measurement parameters of the second link.

[0014] In this implementation, in the case of link reconfiguration without closing the perception measurement session, the perception initiating device sends a request frame for link reconfiguration to the perception responding device, and notifies the perception responding device of the information of the second link that needs to be reconfigured in the request frame. During the perception process, the perception initiating device can reconfigure a new link according to the situation to continue the perception activity instead of establishing a new perception measurement session. Compared with establishing a new perception measurement session, resource overhead can be reduced. In addition, the impact on perception performance can also be reduced.

[0015] In combination with the first aspect, in certain implementations of the first aspect, the first request frame includes a multi-link control field and a multi-link awareness measurement parameter element, the multi-link control field carries a type field, the type field is used to indicate that the multi-link awareness measurement element is a reconfigured multi-link awareness measurement parameter element, and the multi-link awareness measurement parameter element carries information of the second link.

[0016] In this implementation, the first request frame can be a variant of the multi-link perception measurement request frame. By designing the frame structure of the multi-link perception measurement request frame, it can be indicated that the multi-link perception measurement parameter element in the multi-link perception measurement request frame is a reconfigured multi-link perception measurement parameter element, providing a frame structure design for reconfiguring a new link.

[0017] In combination with the first aspect, in certain implementations of the first aspect, the multi-link control field also includes a first field, the first field being used to indicate whether the first request frame includes a link change bitmap, wherein the link change bitmap is used to determine the first link to be removed and the second link requested to be reconfigured; and, when the first field indicates that the first request frame includes the link change bitmap, the multi-link awareness measurement parameter element also includes a link change bitmap field.

[0018] This implementation provides a detailed frame structure design for a first request frame used to request reconfiguration of a new link.

[0019] In combination with the first aspect, in certain implementations of the first aspect, the multi-link awareness measurement parameter element further carries a multi-link awareness sub-element field, and the multi-link awareness sub-element field carries awareness measurement parameters of the second link at the link level based on different awareness measurement types.

[0020] In this implementation, different awareness measurement types may include TB awareness measurement type, non-TB awareness measurement type, or sensing by proxy (SBP) type.

[0021] In addition, the multi-link awareness sub-element carried in the multi-link awareness measurement parameter element carries awareness measurement parameters at the link level. Compared with creating a new awareness measurement session that carries awareness measurement parameters at the device level, it can reduce signaling overhead.

[0022] In combination with the first aspect, in certain implementations of the first aspect, the first request frame further carries an identifier of the awareness measurement session; the first request frame carries a multi-link awareness measurement reconfiguration parameter element, and the multi-link awareness measurement reconfiguration parameter element carries information about the second link for which reconfiguration is requested.

[0023] In this implementation, the first request frame can be a newly designed multi-link awareness measurement reconfiguration request frame of this application, which carries information about the new link for which reconfiguration is requested.

[0024] In combination with the first aspect, in certain implementations of the first aspect, the multi-link awareness measurement reconfiguration parameter element carries information about the second link for which reconfiguration is requested, including: the multi-link awareness measurement reconfiguration parameter element includes link materials of the second link, the link materials include an identifier of the second link and awareness measurement parameters of the second link, and the link materials further include an awareness sub-element, and the awareness sub-element carries awareness measurement parameters of the second link at the link level based on different awareness measurement types.

[0025] This implementation provides a detailed frame structure design for the multi-link awareness measurement reconfiguration request frame of this application. In addition, the awareness measurement parameters at the link level of the second link to be reconfigured are carried in the link materials in the multi-link awareness measurement reconfiguration request frame. Compared with creating a new awareness measurement session that carries awareness measurement parameters at the device level, it can reduce signaling overhead.

[0026] In combination with the first aspect, in some implementations of the first aspect, the method further includes: receiving a first response frame to the first request frame, the first response frame including a status code field, the status code field indicating acceptance of the multi-link awareness measurement reconfiguration parameter element requested in the first request frame, or

[0027] The status code indicates that the multi-link awareness measurement reconfiguration parameter element requested in the first request frame is partially accepted, and the first response frame also carries identification information of the accepted link, or

[0028] The status code indicates that the multi-link measurement reconfiguration parameter element requested in the first request frame is rejected, and the first response frame also carries a recommended perception measurement establishment parameter, or,

[0029] The status code indicates that the sensing measurement reconfiguration parameter element requested in the first request frame is rejected, and the multi-link sensing measurement reconfiguration parameter element does not carry a recommended sensing measurement establishment parameter.

[0030] This implementation method provides a detailed frame structure design of the multi-link perception measurement reconfiguration response frame of the present application. Specifically, the multi-link perception measurement reconfiguration response frame carries a status code field, which is used to indicate whether the perception response device accepts the multi-link perception measurement reconfiguration parameter element requested by the perception initiating device. In combination with the above-mentioned multi-link perception measurement reconfiguration request frame, the present application provides a scheme for the frame structure design of a request frame for reconfiguring a link and its response frame.

[0031] In combination with the first aspect, in some implementations of the first aspect, before sending the first request frame, the method further includes: receiving a second request frame, where the second request frame is used to indicate a request for link reconfiguration for the perception measurement session.

[0032] In this implementation, the method of the first aspect is performed by a perception responder. The perception responder sends a second request frame to the perception initiator to notify the perception initiator that the perception responder requests link reconfiguration. This can be applied to a scenario where a link reconfiguration request is initiated by the perception initiator.

[0033] In combination with the first aspect, in some implementations of the first aspect, the method further includes: sending a second response frame, wherein the second response frame indicates confirmation of receiving the second request frame.

[0034] In this implementation, the perception initiator sends a reception response to the perception responder for initiating a link reconfiguration request. The second request frame and its corresponding second response frame in this implementation are mainly used for notification, and serve the purpose of the perception responder notifying the initiator to reconfigure the link. Afterwards, the perception initiator can send a first request frame carrying information about the reconfigured new link, as described in the above other implementations.

[0035] In combination with the first aspect, in certain implementations of the first aspect, the second request frame carries a link expiration index, and the link expiration index indicates the duration of a timer used to perform the link reconfiguration.

[0036] In this implementation, the second request frame carries a link expiration index for indicating a time limit for link reconfiguration, and the new link needs to be completed before the timer indicated by the link expiration index expires.

[0037] In combination with the first aspect, in certain implementations of the first aspect, the second request frame also carries a reconfiguration link bitmap field, and the reconfiguration link bitmap field is used to indicate the identifier of the first link to be removed and the identifier of the second link requested to be reconfigured.

[0038] In this implementation, the second request frame may indicate the first link to be removed and information about the second link requested to be reconfigured, where the second link may be a link recommended by the perception responder.

[0039] In combination with the first aspect, in some implementations of the first aspect, the method is applied to trigger-based perception measurement or non-trigger-based perception measurement.

[0040] The above first aspect or any implementation method thereof is applicable to the perception measurement interaction process of TB or non-TB, and can meet the requirements of removing links in different multi-link scenarios.

[0041] In the second aspect, a method for perception measurement is provided, which can be executed by a communication device or a module (for example, a chip or a circuit, etc.) applied to a communication device, without limitation. For ease of description, the following description is given by taking a communication device as an example. The communication device can, for example, be a perception initiator in a multi-link perception scenario. The method may include: sending a first request frame, the first request frame being used to request reconfiguration of a second link of a perception measurement session, the first request frame carrying information of the second link, the information of the second link including an identifier of the second link and perception measurement parameters of the second link; receiving a first response frame to the first request frame.

[0042] The method of the second aspect or any of the following implementations of the second aspect is mainly aimed at the case of reconfiguring the link. Its beneficial technical effects can refer to the description of the corresponding scheme of the first aspect and will not be repeated here.

[0043] In combination with the second aspect, in certain implementations of the second aspect, the first request frame includes a multi-link control field and a multi-link awareness measurement parameter element, the multi-link control field includes a type field, the type field is used to indicate that the multi-link awareness measurement parameter element is a reconfigured multi-link awareness measurement parameter element, and the multi-link awareness measurement parameter element carries information about the second link.

[0044] In combination with the second aspect, in certain implementations of the second aspect, the multi-link control field also includes a first field, the first field being used to determine whether the first request frame includes a link change bitmap, wherein the link change bitmap is used to determine the first link to be removed and the second link requested to be reconfigured; and, when the first field indicates that the first request frame includes the link change bitmap, the multi-link awareness measurement parameter element also includes a link change bitmap field.

[0045] In combination with the second aspect, in some implementations of the second aspect, the multi-link perception measurement parameter element also carries a multi-link perception sub-element field, and the multi-link perception sub-element field carries the link-level perception measurement parameters of the second link obtained based on different perception measurement types.

[0046] In combination with the second aspect, in some implementations of the second aspect, the first request frame further carries an identifier of the perception measurement session;

[0047] The first request frame carries a multi-link awareness measurement reconfiguration parameter element, and the multi-link awareness measurement reconfiguration parameter element carries information of the second link requested to be reconfigured.

[0048] In combination with the second aspect, in some implementations of the second aspect, the multi-link awareness measurement reconfiguration parameter element carries information of the second link requested to be reconfigured, including:

[0049] The multi-link perception measurement reconfiguration parameter element includes link information of the second link, the link information includes an identifier of the second link and perception measurement parameters of the second link, and the link information also includes a perception sub-element, and the perception sub-element carries link-level perception measurement parameters of the second link based on different perception measurement types.

[0050] In combination with the second aspect, in some implementations of the second aspect, the first response frame includes a status code field, and the status code field indicates that the multi-link awareness measurement reconfiguration parameter element requested in the first request frame is accepted, or,

[0051] The status code indicates that the multi-link awareness measurement reconfiguration parameter element requested in the first request frame is partially accepted, and the first response frame also carries identification information of the accepted link, or,

[0052] The status code indicates that the multi-link measurement reconfiguration parameter element requested in the first request frame is rejected, and the first response frame also carries a recommended perception measurement establishment parameter, or,

[0053] The status code indicates that the perception measurement reconfiguration parameter element requested in the first request frame is rejected, and the first response frame does not carry the suggested perception measurement establishment parameters.

[0054] In combination with the second aspect, in some implementations of the second aspect, before sending the first request frame, the method further includes: receiving a second request frame, where the second request frame is used to indicate a request for link reconfiguration for the perception measurement session.

[0055] In combination with the second aspect, in some implementations of the second aspect, the method further includes: receiving a second response frame corresponding to the second request frame.

[0056] In combination with the second aspect, in certain implementations of the second aspect, the second request frame carries information about the duration of a timer used to perform the link reconfiguration.

[0057] In combination with the second aspect, in certain implementations of the second aspect, the second request frame also carries a reconfiguration link bitmap field, and the reconfiguration link bitmap field is used to indicate the identifier of the first link to be removed and the identifier of the second link requested to be reconfigured.

[0058] In a third aspect, a method for perception measurement is provided, which can be performed by a communication device or a module (for example, a chip or a circuit, etc.) applied to a communication device, without limitation. For ease of description, the following description is given by taking a communication device as an example. The communication device can, for example, be a perception initiator or a perception responder in a multi-link perception scenario. The method may include: determining to remove a first link, where the first link is any one of multiple links of a perception measurement session; removing the first link after the timer expires, and closing the perception measurement session.

[0059] In the method of the third aspect, when a link needs to be removed, the sensing initiating device or the sensing responding device removes the link after the timer expires, which is a parallel solution to the solution of the first aspect, and provides another solution for removing a link in a multi-link scenario.

[0060] In combination with the third aspect, in some implementations of the third aspect, determining to remove the first link includes: determining to remove the first link when it is determined that the first link needs to enter a power saving mode.

[0061] In this implementation, the device for removing the link may be a non-AP MLD (which may be a perception initiator or a perception responder). When a subordinate STA of the non-AP MLD needs to enter a power saving mode, the link between the subordinate STA and the corresponding AP is removed after the subordinate STA enters the power saving mode. This implementation provides a solution for removing the corresponding link when a subordinate STA of the non-AP MLD enters a power saving mode.

[0062] In a fourth aspect, a method for perception measurement is provided, which can be performed by a communication device or a module (for example, a chip or a circuit, etc.) applied to a communication device, without limitation. For ease of description, the following description is given by taking a communication device as an example. The communication device can, for example, be a perception initiator in a multi-link perception scenario. The method may include: determining a link type of a first link, where the first link is a link to be removed from multiple links of a perception measurement session, and the link type includes a mandatory link, an optional link, or a redundant link; removing the first link according to the link type of the first link and the link request information when establishing the perception measurement session, wherein the link request information indicates the minimum number of links requested.

[0063] In the method of the fourth aspect, when a link needs to be removed, the perception initiating device or the perception responding device removes the link according to the link type of the link to be removed and different situations of establishing a perception measurement session. The scheme of the fourth aspect is a parallel scheme with the scheme of the first aspect. When removing a link in a multi-link scenario, in addition to the link type, different situations when the perception measurement session is established are also considered, which can adapt to more complex link removal requirements or multi-link scenarios.

[0064] In combination with the fourth aspect, in certain implementations of the fourth aspect, removing the first link according to the type of the first link and the link request information when establishing the perception measurement session includes: if the number of the multiple links is equal to the minimum number of links, and the first link is a mandatory link or an optional link, removing the first link after the timer expires; and the method also includes: closing the perception measurement session.

[0065] In this implementation, if the number of links requested when establishing a perception measurement session is equal to the minimum number of links, this means that the perception measurement session has no redundant links. If the first link to be removed is a mandatory link or an optional link, the first link is removed after the timer expires, and the perception measurement session is closed. In the case where the first link is a mandatory link, closing the perception measurement session can avoid the perception activities on other links continuing and generating invalid perception result reports, as well as the overhead and waste of air interface resources and signaling caused by the reporting of perception result reports.

[0066] In combination with the fourth aspect, in certain implementations of the fourth aspect, removing the first link according to the type of the first link and the link request information when establishing the perception measurement session includes: if the number of the multiple links is equal to the minimum number of links and the first link is an optional link, removing the first link after the timer expires; and the method also includes: performing link reconfiguration before the timer expires.

[0067] In this implementation, if the number of links requested when establishing a perception measurement session is equal to the minimum number of links, this means that the perception measurement session has no redundant links. If the first link to be removed is an optional link, the first link is removed after the timer expires, and a new link is reconfigured before the timer expires, so that the perception measurement session does not need to be closed. After the new second link is reconfigured, the perception activity on the first link can be transferred to the second link to continue, and the perception measurement session is not affected by the removal of the first link. Compared with reestablishing a perception measurement session, the overhead of air interface resources and signaling can also be reduced.

[0068] In combination with the fourth aspect, in certain implementations of the fourth aspect, removing the first link according to the type of the first link and the link request information when establishing the perception measurement session includes: if the number of the multiple links is greater than the minimum number of links, and the first link is a mandatory link or an optional link, removing the first link after the timer expires; and the method also includes: closing the perception measurement session.

[0069] In this implementation, if the number of links requested when establishing a perception measurement session is greater than the minimum number of links, this means that there are redundant links in the perception measurement session. If the first link to be removed is an optional link, the first link is removed after the timer expires, and a new link is reconfigured before the timer expires, so that the perception measurement session does not need to be closed. After the new second link is reconfigured, the perception activity on the first link can be transferred to the second link to continue, and the perception measurement session is not affected by the removal of the first link. Compared with reestablishing a perception measurement session, the overhead of air interface resources and signaling can also be reduced.

[0070] In combination with the fourth aspect, in certain implementations of the fourth aspect, removing the first link according to the type of the first link and the link request information when establishing the perception measurement session includes: if the number of the multiple links is greater than the minimum number of links and the first link is an optional link, removing the first link after a timer expires; and the method also includes: performing link reconfiguration before the timer expires.

[0071] In this implementation, if the number of links requested when establishing a perception measurement session is greater than the minimum number of links, this means that there are redundant links in the perception measurement session. If the first link to be removed is an optional link, the first link is removed after the timer expires, and a new link is reconfigured before the timer expires, so that the perception measurement session does not need to be closed. After the new second link is reconfigured, the perception activity on the first link can be transferred to the second link and continued, and the perception measurement session is not affected by the removal of the first link.

[0072] In combination with the fourth aspect, in certain implementations of the fourth aspect, removing the first link according to the type of the first link and the link request information when establishing the perception measurement session includes: if the number of the multiple links is greater than the minimum number of links and the first link is a redundant link, implicitly removing the first link after the timer expires.

[0073] In this implementation, if the number of links requested when establishing the perception measurement session is greater than the minimum number of links, this means that there are redundant links in the perception measurement session. If the first link to be removed is a redundant link, the first link is removed after the timer expires, and the perception measurement session is not affected by the removal of the first link on other links.

[0074] In a fifth aspect, a method for perception measurement is provided, which can be performed by a communication device or a module (for example, a chip or a circuit, etc.) applied to a communication device, without limitation. For ease of description, the following description is given by taking a communication device as an example. The communication device can, for example, be a perception initiator in a multi-link perception scenario. The method may include: sending first information, wherein the first information is used to determine whether a link requested to be established for a perception measurement session includes a redundant link, and the link requested to be established for the perception measurement session includes at least one of a mandatory link and an optional link; based on the first information, establishing perception measurement.

[0075] Based on this technical solution, during the establishment of multi-link perception measurement, the perception initiator adds an indication of redundant links, and the perception receiver can determine whether there are redundant links in the perception measurement session based on the indication. On the one hand, the setting of redundant links can improve the reliability and flexibility of perception measurement interaction. On the other hand, removing a link in a multi-link scenario can provide a basis for performing different processing based on the link type.

[0076] In combination with the fifth aspect, in some implementations of the fifth aspect, sending the first information includes: sending a multi-link awareness measurement request frame, where the multi-link awareness measurement request frame carries the first information.

[0077] In this implementation, the first information used to determine whether there is a redundant link among the multiple links corresponding to the awareness measurement session may be carried in a multi-link awareness measurement request frame.

[0078] In combination with the fifth aspect, in some implementations of the fifth aspect, the first information includes a minimum number of links field and a maximum number of links field, the minimum number of links field is used to indicate the requested minimum number of links, and the maximum number of links field is used to indicate the requested maximum number of links;

[0079] If the value of the minimum link number indication is equal to the value of the maximum link number indication, the link requested to be established for the perception measurement session does not include the redundant link; or,

[0080] If the value of the minimum link number indicator is not equal to the value of the maximum link number indicator, the link requested to be established for the perception measurement session includes the redundant link.

[0081] In this implementation, the flexibility of establishing the perception measurement is increased by designing the minimum link number field and the maximum link number field. In addition, the values ​​of these two fields can implicitly indicate (or imply) whether there are redundant links.

[0082] In combination with the fifth aspect, in some implementations of the fifth aspect, the first information includes a redundancy indication field, where the redundancy indication field is used to indicate whether the optional link in the link requested to be established for the perception measurement session is a redundant link.

[0083] In this implementation, by designing the redundancy indication field, it can indicate whether the optional link corresponding to the perception measurement session is a redundant link, and it can indicate whether the perception measurement session has a redundant link, thereby increasing the flexibility of establishing the perception measurement.

[0084] In a sixth aspect, a communication device is provided, comprising a module or unit for executing the method of any one of the first to fifth aspects above, or any possible implementation of any one of the aspects. The device may be a network device or a terminal device, or a module of a network device or a terminal device (e.g., a chip, a chip system, or a circuit, etc.). Optionally, the network device or the terminal device is an MLD device. For example, the network device is an AP MLD, and the terminal device is a non-APMLD.

[0085] In a seventh aspect, a communication device is provided, including a processor, the processor is coupled to a memory, and can be used to perform the method of any one of the first to fifth aspects above. In one possible implementation, the communication device also includes a memory. In another possible implementation, the communication device also includes a communication interface, and the processor, the memory and the communication interface are coupled.

[0086] In one implementation, the communication device is a network device or a terminal device. When the communication device is a network device or a terminal device, the communication interface may be a transceiver, or an input / output interface. The transceiver may be a transceiver circuit, and the input / output interface may be an input / output circuit. In another implementation, the communication device is a chip or a chip system. In this implementation, the communication interface may be an input / output interface, an interface circuit, an output circuit, an input circuit, a pin or a related circuit on the chip or the chip system. The processor may also be embodied as a processing circuit, an integrated circuit or a logic circuit.

[0087] In an eighth aspect, a communication device is provided, comprising: an input circuit, a processing circuit, and an output circuit. The processing circuit can receive a signal through the input circuit and perform relevant processing and / or operations of the method in any aspect of the first to fifth aspects or any possible implementation thereof; and can also transmit a signal through the output circuit.

[0088] In the specific implementation process, the above-mentioned communication device can be a chip, the input circuit can be an input pin, the output circuit can be an output pin, and the processing circuit can be a transistor, a gate circuit, a trigger, and various logic circuits. The signal received by the input circuit may include but is not limited to being received and input by a receiver, and the output circuit output signal may include but is not limited to outputting the signal to a transmitter and transmitting the signal by the transmitter. In addition, the input circuit and the output circuit can be different circuits or the same circuit. In this case, the circuit is used as an input circuit and an output circuit at different times. The input circuit and / or the output circuit may also be referred to as an interface circuit. The embodiments of the present application do not limit the specific implementation methods of the processor and various circuits.

[0089] In the ninth aspect, a computer program product is provided, which includes: a computer program (also referred to as code, or instructions), which, when executed, enables a computer to execute a method in any aspect from the first to the fifth aspect, or in any possible implementation of any aspect.

[0090] In the tenth aspect, a computer-readable medium is provided, which stores a computer program (also referred to as code, or instructions) which, when executed on a computer, enables the computer to execute a method in any aspect of the first to fifth aspects, or in any possible implementation of any aspect.

[0091] In the eleventh aspect, a chip (or chip system) is provided, including a memory and a processor, the memory being used to store a computer program, the processor being used to call and run the computer program from the memory, so that a communication device equipped with the chip (or chip system) executes a method in any aspect of the first to fifth aspects above, or any possible implementation of any aspect.

[0092] The chip system may include an input circuit or interface for sending information and / or data, and an output circuit or interface for receiving information and / or data. The input circuit and the output circuit may be the same circuit, for example, called an interface circuit.

[0093] In a twelfth aspect, a communication system is provided, comprising at least one of the above-mentioned perception initiating end and the perception responding end. BRIEF DESCRIPTION OF THE DRAWINGS

[0094] Figure 1 Schematic diagram of the structure of the action field of the perception measurement request frame.

[0095] Figure 2 Schematic diagram of the elements of perceptual measurement parameters.

[0096] Figure 3A schematic diagram of the perception measurement parameter field in the perception measurement parameter element.

[0097] Figure 4 Schematic diagram of the structure of the action field of the perception measurement response frame.

[0098] Figure 5 Schematic diagram of the communication system of MLD and its affiliated STAs.

[0099] Figure 6 Schematic diagram of the frame structure of a multi-link element.

[0100] Figure 7 The figure is a schematic flowchart of multi-link perception.

[0101] Figure 8 A schematic flowchart of a method for perceptual measurement provided in the present application.

[0102] Fig. 9 This is a schematic diagram of the frame structure of the action domain of the perception measurement termination frame provided in this application.

[0103] Fig.10 This is a schematic diagram of the frame structure of the control field of the measurement session termination frame provided in this application.

[0104] Fig.11 A schematic flowchart of another method for perceptual measurement provided in the present application.

[0105] Fig.12 A schematic flowchart of another method for perceptual measurement provided in the present application.

[0106] Fig.13 This is an example of an improved multi-link awareness measurement request frame provided by the present application.

[0107] Fig.14 This is another example of the improved multi-link awareness measurement request frame provided by the present application.

[0108] Fig.15 A schematic diagram of the frame structure of a newly designed multi-link awareness measurement reconfiguration request frame provided in this application.

[0109] Fig.16 A schematic diagram of the frame structure of a newly designed multi-link awareness measurement reconfiguration response frame provided in this application.

[0110] Fig.17 A schematic interaction diagram of the link reconfiguration process initiated by the sensing initiator.

[0111] Fig.18 Schematic interaction diagram of the link reconfiguration process for link reconfiguration requested by the sensing responder.

[0112] Fig.19 A schematic diagram of the frame structure of a link reconfiguration request frame provided in this application.

[0113] Fig. 20 A schematic diagram of the frame structure of a link reconfiguration response frame provided in this application.

[0114] Fig.21 A schematic interactive diagram of another method for perceptual measurement provided in the present application.

[0115] Fig. 22 This is an example of a multi-link awareness measurement request frame carrying first information.

[0116] Fig.23 This is another example of a multi-link awareness measurement request frame carrying the first information.

[0117] Fig.24 Another example is obtained for the multi-link awareness measurement request frame to carry the first information.

[0118] Fig.25 A schematic structural diagram of a communication device provided in this application.

[0119] Fig.26 A schematic structural diagram of another communication device provided in this application.

[0120] Fig. 27 A schematic structural diagram of another communication device provided in this application. DETAILED DESCRIPTION

[0121] The technical solution in this application will be described below in conjunction with the accompanying drawings.

[0122] In order to facilitate understanding of the technical solution of the present application, a brief introduction to the related technologies or concepts is first given.

[0123] IEEE 802.11bf is a new generation wireless standard for WLAN sensing. WLAN sensing is the use of received wireless signals by devices with WLAN sensing capabilities in a given environment to determine the characteristics of a predetermined target (such as an object, animal, or person), including the target's distance, location, speed, motion, and behavior.

[0124] The existing IEEE 802.11bf standard involves four roles:

[0125] Sensing initiator: the device that initiates the sensing behavior;

[0126] Sensing responder: A device that responds to the sensing behavior initiated by the sensing initiator and participates in the sensing behavior;

[0127] Sensing transmitter (TX): A device that sends sensing PPDUs.

[0128] Sensing receiver (RX): A device that receives and senses physical layer protocol data units (PPDUs).

[0129] The current IEEE 802.11bf standard is based on a single link, and 11bf presents perception measurement in the form of a session. The perception measurement process includes: perception capability interaction, perception measurement establishment, perception measurement exchange, and perception measurement shutdown.

[0130] The process of establishing perception measurement includes:

[0131] (1) The sensing initiator sends a sensing measurement request frame to the sensing responder to initiate the sensing measurement establishment and set the sensing measurement parameters, sensing type (trigger based, TB / non-TB, sending by proxy, SBP) and corresponding sensing measurement parameters. The sensing measurement request frame action field format is as follows: Figure 1 The fields and elements of the sensing measurement parameters element are as follows: Figure 2 The sensing measurement parameters field in the sensing measurement parameters element is as follows: Figure 3 shown.

[0132] The sensing measurement parameter element may carry different sensing sub-elements, which may be a TB sensing specific subelement, a Non-TB sensing specific subelement, and a SBP specific subelement.

[0133] (2) After receiving the sensing measurement establishment request frame, the sensing responder sends a sensing measurement response frame to establish the sensing. The action field format of the sensing measurement response frame is as follows: Figure 4 In addition, the perception measurement response frame follows the following rules:

[0134] If the sensing responder accepts the sensing measurement parameters element requested in the sensing measurement setup request frame, the status code in the sensing measurement setup response frame is set to success; or,

[0135] If the perception responder rejects the perception measurement parameter element requested in the perception measurement setup request frame, but it provides recommended perception measurement setup parameters in the perception measurement setup response frame, the status code is set to rejected_with_suggested_changes; or,

[0136] If the perception responder rejects the perception measurement parameter element requested in the perception measurement setup request frame and does not provide recommended perception measurement setup parameters, the status code is set to request_declined.

[0137] After the sensing measurement is established, the sensing initiator will initiate one or more sensing measurement exchanges according to its own needs based on the sensing measurement parameters (or operational parameters of sensing measurement) negotiated during the sensing measurement establishment process. A sensing measurement exchange can be divided into two forms: trigger-based sensing measurement exchange (TBsensing measurement exchange) and non-trigger-based sensing measurement exchange (Non-TBsensing measurement exchange). Among them, the trigger-based sensing measurement instance is initiated by the AP as the sensing initiator, and the non-trigger-based sensing measurement instance is initiated by the non-AP STA as the sensing initiator.

[0138] Perception measurement closure includes explicit closure and implicit closure:

[0139] 1. Explicit shutdown: Either the sensing initiator or the sensing responder sends a sensing measurement termination frame to terminate the sensing measurement session;

[0140] 2. Implicit closing: The perception initiator or the perception responder closes the perception measurement session without sending a perception measurement termination frame, that is, the perception measurement session is closed without sending a frame for interaction. Alternatively, other ways of closing the perception measurement session other than explicitly closing the perception measurement session are implicitly closed. As an example, the perception initiator sets a measurement session expiry timer during the perception establishment process. When it is detected that there is no frame interaction within the timer duration, the perception measurement session is implicitly closed.

[0141] Currently, the perception in 802.11bf is still mainly focused on single-link scenarios. IEEE 802.11be (also known as Wi-Fi 7) introduces multi-link features. With the popularization of Wi-Fi 7, there will be more multi-link devices (MLD).

[0142] Figure 5 Figure 1 is a schematic diagram of the communication system of MLD and its affiliated STAs. Figure 5 , MLD can include one or more affiliated sites, each affiliated site has its own MAC address (MAC address, abbreviated as MAC addr). Affiliated sites have multiple lower MAC addresses (lower MAC addresses), and MLD has an upper MAC address (upper MAC address).

[0143] MLD can establish multiple links at the same time. If different links can receive and send at the same time (for example, assuming there are two links, one link sends and the other link receives), this mode is called (simultaneous transmit and receive, STR); if multiple links can only send or receive at the same time (for example, two links must send or receive at the same time), this mode is called (non-simultaneous transmit and receive, NSTR).

[0144] MLD STAs should include Basic variant Multi-Link element in some of the management frames they transmit to inform other STAs of their multi-link capabilities and information. Multi-link element can be carried in beacon frame, multi-link probe response frame and (re)associationresponse frame sent by AP, or in probe request frame and (re)associationrequest frame sent by STA. The structure of multi-link element is as follows: Figure 6 shown.

[0145] In a multi-link scenario, when AP MLD and Non-AP MLD perform multi-link perception, if AP MLD wants to remove, delete or disable a link, or Non-AP MLD needs to remove, delete or disable a link, or a subordinate STA of Non-AP MLD enters power saving mode, it may affect the perception measurement or perception result. The technical solution provided by the present application can be used in these scenarios.

[0146] The technical solution provided in the embodiments of the present application can be applicable to wireless local area network (WLAN) scenarios, for example, supporting the Institute of Electrical and Electronics Engineers (IEEE) 802.11 related standards, such as 802.11a / b / g standards, 802.11n standards, 802.11ac standards, 802.11ax standards, 802.11be standards, 802.11bn standards / UHR standards, 802.11ad standards, 802.11ay standards, ultra wide band (UWB) standards 802.15 series standards, and 802.11bf series standards.

[0147] The technical solution of this application is introduced below.

[0148] The technical solution of the present application is mainly aimed at the scenario where MLD performs multi-link perception in WLAN perception.

[0149] Figure 7The present invention is a schematic flowchart of multi-link sensing. The three main processes involved in the embodiment of the present application include a multi-link sensing measurement session, a multi-link sensing measurement exchange, and a multi-link sensing measurement session termination.

[0150] In an embodiment of the present application, during the perception measurement establishment process, the number of links actually established is allowed to be more than the minimum number of links requested, that is, the existence of redundant links is allowed to increase the reliability of the perception measurement interaction. During the perception measurement interaction process, if the perception initiator or the perception responder wants to remove one or more links, the embodiment of the present application provides a corresponding solution. In addition, the multi-link perception measurement closure involved in the embodiment of the present application may include the implicit closure of the link and the implicit closure of the perception measurement session, as described in the following embodiments.

[0151] The names of frames (such as request frames, response frames, etc.), messages / information, fields, etc. involved in the embodiments of the present application are for the purpose of clearly describing the technical solution. These names should not constitute any limitation on the essence of the technical solution, but on the actual role or function of these frames, messages / information, fields, etc. in each embodiment. The names of frames, messages / information, fields, etc. involved in the embodiments of this document are only for example. In future communication systems (such as 6G, or other short-range communication systems), these frames, messages / information, fields, etc. may be other names.

[0152] Solution 1

[0153] See also Figure 8 , Figure 8 A schematic flowchart of a method for perceptual measurement provided in the present application.

[0154] 210. The multi-link device determines a link type of a first link, where the first link is a link to be removed from multiple links corresponding to the perception measurement session, and the link type includes a mandatory link, an optional link, or a redundant link.

[0155] The mandatory link is a link that is indispensable or must be used in the perception measurement session. The optional link is a link that is required but not necessarily used in the perception measurement session. The redundant link is a backup link of the mandatory link or the optional link.

[0156] For example, a perception measurement session in a certain application scenario requires perception data on two links, where these two links must include link 1, while the other link may not be required. Assume that three links are established in the perception measurement establishment phase, including link 1, which must be established, as well as link 2 and link 3. Then, among these three links, link 1 is a mandatory link, and link 2 or link 3 is an optional link. When one of link 2 or link 3 is an optional link, the other is a redundant link. For example, if link 2 is an optional link, link 3 is a redundant link. Or, if link 3 is an optional link, link 2 is a redundant link.

[0157] The redundant link is a link proposed in the present application for improving the reliability of the perception measurement interaction. In a possible scenario, if the optional link needs to be removed, the redundant link can take over as a new optional link.

[0158] The first link, the second link, etc. described in the embodiments of the present application may be one or more. For example, removing the first link may be removing one or more first links, and reconfiguring the second link may be reconfiguring one or more second links, without limitation.

[0159] The “plurality” in the embodiments of the present application includes two or more than two.

[0160] 220. The multi-link device removes the first link according to the link type of the first link.

[0161] In the present application, "removing" a link can also be replaced by "closing" a link or "disabling" a link, etc. Among them, after removing or closing a link, the link does not exist and the parameter configuration related to the link no longer exists. Disabling a link means that the link is no longer used, but the parameter configuration related to the link still exists. Exemplarily, an AP MLD can remove, delete or disable one or more links. Non-AP MLD can remove, delete or disable one or more links. For example, if a subordinate STA of a Non-AP MLD enters a power saving mode, the link established between the subordinate STA and the AP is closed after the subordinate STA enters a power saving mode.

[0162] Depending on the link type of the first link, removing the first link may include the following possible situations:

[0163] In one possible case, the first link is a mandatory link, in which case the multi-link device removes the first link after the timer expires. Further, since the mandatory link is removed, the multi-link device may also close the perception measurement session. For example, the perception measurement session may be closed explicitly or implicitly, without limitation.

[0164] In another possible case, the first link is an optional link. In this case, one implementation is that the multi-link device can remove the first link after the timer expires, and further, implicitly close the perception measurement session. Another implementation is that the multi-link device can remove the first link after the timer expires, and perform link reconfiguration before the timer expires. Through link reconfiguration, a new optional link can be established to continue the perception measurement. The process of link reconfiguration will be described in detail below.

[0165] In addition, "after the timer expires" in each embodiment can be understood to include when the timer expires, the timer times out, or the timer duration ends.

[0166] In addition, if the multi-link device in method 200 is an AP MLD (which can be a perception initiator or a perception responder), the timer in method 200 can be an AP remover timer (AP remover timer) on the AP-MLD side, or a newly added timer for removing a link. If the multi-link device in method 200 is a non-AP MLD (which can be a perception initiator or a perception responder), the timer in method 200 can be a newly added timer for removing a link on the non-AP MLD side. In addition, the timer can also be a set default timer, which is not limited in the embodiments of the present application.

[0167] In another possible case, the first link is a redundant link. In this case, the multi-link device may remove the first link after the timer expires.

[0168] The above method 200 is applicable to the perception initiator or the perception responder. For example, the method 200 can be executed by an APMLD or a non-AP MLD. Accordingly, the multi-link device in the method 200 can be specifically an AP MLD or a non-AP MLD.

[0169] This is applicable to both AP MLD and non-AP MLD.

[0170] For example, if AP MLD wants to remove the first link, after AP MLD announces in a beacon frame that it wants to remove the first link, it performs corresponding operations according to the type of the first link. For another example, if the first link to be removed is a mandatory link, AP MLD automatically closes the first link after the timer expires. In addition, AP MLD closes (for example, implicitly closes) the perception measurement session. If the first link to be removed is an optional link of the perception measurement session, AP MLD can have the following two behaviors: AP MLD closes the first link after the timer expires and closes the perception measurement session; or AP MLD reconfigures a new second link in the current perception measurement session so that the perception measurement session continues. The process of reconfiguring the second link must be completed before the timer expires. For another example, if the first link to be removed is a redundant link of the perception measurement session, AP MLD removes the redundant link after the timer expires, and the work of the perception interaction on other links is not affected. Optionally, the beacon frame sent by AP MLD can carry a timer, or the beacon frame does not carry a timer. In this case, the timer can be a set default duration. In another example, if the AP MLD establishes the same perception measurement session with multiple non-AP MLDs, if at least one of the multiple links established between the AP MLD and the multiple non-AP MLDs is removed, deleted, or deactivated, then after the AP MLD and the non-AP MLD whose link is closed close the perception measurement session, the AP MLD also needs to send a perception measurement termination frame to other non-AP MLDs whose links are not closed, to explicitly notify these non-AP MLDs whose links are not closed to close the perception measurement session. The perception measurement termination frame can reuse the frame structure of 11bf, which is as follows: Fig. 9 and Fig.10 shown. Fig. 9 Schematic diagram of the action domain frame structure of the perception measurement termination frame. Fig.10 This is a schematic diagram of the frame structure of the control field of the perception measurement termination frame.

[0171] Non-AP MLD can also remove, delete or deactivate a link. For example, if a first link established between a subordinate STA of Non-AP MLD and an AP is to enter a power saving mode or a low power consumption mode, or Non-AP MLD is to remove the first link for other reasons, Non-AP MLD performs corresponding operations according to the link type of the first link to be removed. For example, if the first link to be removed is a required link for a perception measurement session, the first link is closed after the subordinate STA enters the power saving mode, and in addition, the perception measurement session is closed (for example, implicitly closed or explicitly closed). If the first link is an optional link for a perception measurement session, Non-AP MLD can have the following two behaviors: the first link is automatically closed after the subordinate STA of Non-AP MLD enters the power saving mode, and since the optional link is also required for the perception measurement session, Non-AP MLD also closes (for example, implicitly closed) the perception measurement session. Alternatively, Non-AP MLD reconfigures a new second link in the current perception measurement session. The process of establishing the second link must be completed before the timer expires. When the timer expires, the first link is automatically closed. If the first link to be removed is a redundant link, the Non-AP MLD removes the first link after the timer expires, and the perception interaction of other links is not affected.

[0172] In the embodiment of the present application, there is no limitation on the reasons why a multi-link device removes a link, and may include but is not limited to: the perception result of a certain link is not what the multi-link device expects, the switching of the perception scene, a subordinate STA of the non-AP MLD needs to enter a power saving mode and thus the link between the subordinate STA and the AP needs to be removed, other business requirements, and interference in the environment, etc.

[0173] The above method 200 is a solution for removing a link in a multi-link scenario provided by the present application. Another solution is provided below. Figure 3 Provide explanation.

[0174] Solution 2

[0175] Fig.11 A schematic flowchart of another method for perceptual measurement provided in the present application.

[0176] 310. The multi-link device determines a link type of a first link.

[0177] For step 310, reference may be made to the description of step 210 above, which will not be described in detail again.

[0178] 320. The multi-link device removes the first link according to the link type of the first link and the link request information when establishing the awareness measurement session, wherein the link request information indicates the minimum number of links requested.

[0179] In method 300, the multi-link device performs relevant processing for removing the first link based on the link type of the first link and the link request information when establishing the perception measurement session. Specifically, the multi-link device first determines whether the number of links of the perception measurement session is equal to or greater than the minimum number of links requested when establishing the perception measurement session, and then further performs relevant operations for removing the first link in combination with the link type of the first link to be removed. In general, two possible situations are involved.

[0180] Case 1

[0181] If the number of links of the perception measurement session is equal to the minimum number of links requested when establishing the perception measurement session, the multi-link device may further implement the following based on the link type of the first link:

[0182] 1. If the first link is a mandatory link for the perception measurement session, the multi-link device removes the first link after the timer expires. In addition, since the first link is a mandatory link, the multi-link device closes the perception measurement session after the timer expires, for example, implicitly closes or explicitly closes the perception measurement session;

[0183] 2. If the first link is an optional link of the perception measurement session, the multi-link device may be implemented in the following two ways:

[0184] (1) The multi-link device closes the first link after the timer expires. In addition, since the closed first link is an optional link but is also a link required by the perception measurement session, the perception measurement session may also be closed after the timer expires, for example, implicitly or explicitly.

[0185] (2) The multi-link device performs link reconfiguration. Specifically, the multi-link device re-establishes a new link (e.g., called a second link) in the current perception measurement session so that the perception measurement can continue on the second link. The establishment process of the second link must be completed before or when the timer expires.

[0186] In each embodiment of the present application, "performing link reconfiguration" refers to executing or completing the entire process of link reconfiguration.

[0187] Case 2

[0188] If the number of links of the awareness measurement session is greater than the minimum number of links requested when establishing the awareness measurement session, the multi-link device may include the following possible implementations:

[0189] 1. If the first link is a mandatory link for the perception measurement session, the multi-link device closes the first link after the timer expires. In addition, since the closed first link is a mandatory link, the multi-link device also closes the perception measurement session, such as implicitly closing or explicitly closing the perception measurement session;

[0190] 2. If the first link is an optional link of the perception measurement session, the multi-link device may include the following two implementations:

[0191] (1) The multi-link device closes the first link after the timer expires, and also closes the perception measurement session.

[0192] (2) The multi-link device reconfigures a new link before the timer expires, and closes the first link after the timer expires. In this implementation, after the new link configuration is completed, the perception measurement session can continue on the reconfigured new link.

[0193] 3. If the first link is a redundant link of the perception measurement session, the multi-link device shuts down the first link after the timer expires, or in other words, shuts down the perception measurement session on the first link, and the perception measurement session works normally on other links.

[0194] It can be seen that in some of the above implementations, for example, when the first link to be removed is an optional link and the multi-link device performs link reconfiguration before the timer expires, or when the first link is a redundant link, the multi-link device removes the first link but does not close the perception measurement session.

[0195] In addition, if the first link to be removed is a redundant link, after the redundant link is closed, the perception measurement interaction continues on other links without being affected, and the perception measurement session continues. In the case where the first link to be removed is a mandatory link, the multi-link device closes the first link and the perception measurement session after the timer expires, which can avoid invalid perception reports on other links other than the first link, and also avoid unnecessary air interface occupancy and resource waste due to continued perception interaction on other links. In addition, in the case where an optional link is removed, the multi-link device can choose to reconfigure the link to ensure that the current perception continues.

[0196] The above method 300 is applicable to the perception initiator or the perception responder. For example, the method 300 can be executed by an APMLD or a non-AP MLD. Accordingly, the multi-link device in the method 300 can be specifically an AP MLD or a non-AP MLD.

[0197] In addition, a solution for removing a link in a multi-link scenario is also provided, such as Solution 3 below.

[0198] Solution 3

[0199] In solution 3, if the multi-link device determines to remove the first link, the first link is removed after the timer expires, and the perception measurement session is closed. The first link is any one of the multiple links of the perception measurement session. The perception measurement session can be closed implicitly or explicitly, without limitation.

[0200] Similarly, Scheme 3 is applicable to both AP MLD and non-AP MLD. For example, after AP MLD announces in the beacon frame that it will remove the first link, it closes the first link after the timer expires. In addition, the perception measurement session is closed. The timer may be set by default, or may be carried in the beacon frame of AP MLD. For another example, a subordinate STA of non-AP MLD enters power saving mode, or sleep mode, after which the first link established between the subordinate STA and the AP is automatically closed, and the perception measurement session is also closed (for example, implicitly or explicitly). In addition, optionally, before the subordinate STA enters the power saving mode, non-AP MLD initiates a request for link reconfiguration in the current perception measurement session. The reconfiguration of the new link is completed before the timer expires. Optionally, the timer may be carried in a message for requesting link reconfiguration, or the timer may be a set default duration.

[0201] In some implementations of the above-mentioned Schemes 1 to 3, the multi-link device may perform link reconfiguration before the timer expires, such as reconfiguring the second link, so that after the second link configuration is completed, the perception measurement interaction on the removed first link may be transferred to the newly configured second link to ensure continuous perception.

[0202] The process of reconfiguring the link is described in detail in Scheme 4 below. The various embodiments of link reconfiguration before the expiration of the timer in Schemes 1 to 3 above can be used in combination with the embodiments in Scheme 4 below. For example, in Scheme 1, if the AP MLD determines that the first link to be removed is an optional link, one possible option is to reconfigure the second link before the expiration of the timer. Then, after announcing the removal of the first link, the AP MLD can execute the method 500 in Scheme 4 below. In this implementation, the perception initiating device in method 500 is the AP MLD.

[0203] Solution 4

[0204] Fig.12A schematic flowchart of another method for perceptual measurement provided in the present application.

[0205] 510. The perception initiating device sends a first request frame, where the first request frame is used to request reconfiguration of a second link of the perception measurement session.

[0206] The first request frame carries information about the second link, and the information about the second link includes an identifier of the second link and a perception measurement parameter of the second link. The perception measurement parameter of the second link may include the following: Fig.15 One or more of the parameters shown.

[0207] In the embodiment of the present application, the first request frame for requesting link reconfiguration may be implemented in multiple ways.

[0208] In an implementation manner, the first request frame may be a multi-link awareness measurement request frame, and the multi-link awareness measurement request frame carries information about the second link.

[0209] 1. Multi-link awareness measurement request frame.

[0210] As an example, a multi-link sensing measurement request frame includes a multi-link sensing measurement parameter element and a multi-link control field. The multi-link control field includes a type field, and the type field is used to indicate that the multi-link sensing measurement parameter element is a reconfigured multi-link sensing measurement parameter element or a basic sensing measurement parameter element. In the case where the multi-link sensing measurement request frame is used to request configuration of a second link, the type field indicates that the multi-link sensing measurement parameter element is a reconfigured multi-link sensing measurement parameter element. Among them, the multi-link sensing measurement parameter element carries information about the second link. Therefore, the multi-link sensing measurement parameter element can be regarded as a variant of the multi-link sensing measurement parameter element (for example, it can be expressed as a Multi-link sensing measurement parameters element variant). Based on the type field, the variant is indicated as a basic multi-link sensing measurement parameter element or a reconfigured multi-link sensing measurement parameter element, as shown in Table 1.

[0211] As an example, the encoding method of the type field is shown in Table 1.

[0212] Table 1

[0213]

[0214] It should be understood that the value of the type field in Table 1 is only an example, and those skilled in the art may also indicate that the multi-link awareness measurement parameter element is basic or reconfigured in other ways.

[0215] It should be noted that the basic multi-link perception measurement parameter element refers to the multi-link perception measurement parameter element including all perception measurement parameters required for perception measurement (or called operational parameters of perception measurement), that is, including device-level parameters and link-level parameters.

[0216] In addition, the multi-link control field also includes a first field, and the first field is used to indicate whether the multi-link sensing measurement request frame includes a link change bitmap. The link change bitmap is used to determine the first link to be removed and the second link requested to be reconfigured. Exemplarily, the first field may be a presence bitmap field. As an example, the link change bitmap field is used to indicate a changed link ID, such as a link ID to be removed and a link ID requested to be reconfigured. The link change bitmap field only exists when the multi-link sensing measurement request frame carries a reconfiguration multi-link sensing measurement parameter element.

[0217] In one implementation, the link change bitmap field may be included in the reconfigured multi-link awareness measurement parameter element, and the multi-link control field includes a bitmap existence field, which indicates whether the link change bitmap exists, such as Fig.13 In another implementation, the reconfigured multi-link awareness measurement parameter element carries information about the second link, for example, Fig.14 In addition, the multi-link control field includes a type field and an existence bitmap field. Fig.13 In the reconfigured multi-link perception parameter element, the link-level information of the second link based on different perception measurement types may be carried, and optionally, the device-level information based on different perception measurement types may be carried, without limitation. As an example, the link-level information may include the following: Fig.15 One or more of the parameters included in the "each sensing link profile" shown in . Optionally, Fig.15The "per-aware link profile" may also be replaced by "per-link profile" or per-STA profile, without limitation.

[0218] exist Fig.13 and Fig.14 In the two frame structure designs shown, the multi-link perception measurement request frame also includes a multi-link perception sub-element, which carries the perception measurement parameters of the link level of the second link based on different perception measurement types. Optionally, it can also carry information based on different perception measurement types at the multi-link device level. Carrying only link-level information can reduce overhead. In addition, carrying link-level information and MLD-level information can also reduce overhead compared to establishing a new perception measurement session after removing the link in the prior art. Among them, the perception measurement type may include a TB perception measurement type, a non-TB perception measurement type, or a proxy perception (sensing by proxy, SBP) type, etc.

[0219] In another implementation, the present application provides a newly designed request frame and a response frame for link reconfiguration, which are respectively referred to as a multi-link sensing measurement reconfiguration request frame (multi-link sensing measurement reconfiguration request frame) and a multi-link sensing measurement reconfiguration response frame (multi-link sensing measurement reconfiguration response frame) in the embodiments of the present application.

[0220] 2. Multi-link awareness measurement reconfiguration request frame and multi-link awareness measurement reconfiguration response frame.

[0221] As an example, the frame structure of the multi-link awareness measurement reconfiguration request frame is as follows: Fig.15 As shown. Fig.15 The multi-link sensing measurement reconfiguration request frame includes a sensing measurement session ID indication field, which is used to indicate the sensing measurement session corresponding to the second link requested for reconfiguration. In addition, the multi-link sensing measurement reconfiguration request frame also includes a multi-link sensing measurement reconfiguration parameter element. The multi-link sensing measurement reconfiguration parameter element carries the link information of the second link. In addition, Fig.15In the multi-link perception measurement reconfiguration parameter element, the link-level information of the second link based on different perception measurement types may be carried, and optionally, the device-level information based on different perception measurement types may be carried, without limitation. In one example, the link information includes a perception sub-element. In another example, the perception sub-element may be directly carried in the multi-link perception measurement reconfiguration parameter element. The perception sub-element may include link-level parameters based on different perception measurement types, or the perception sub-element may include link-level parameters based on different perception measurement types and MLD-level parameters, without limitation. As an example, the link-level parameters included in the perception sub-element may include: Fig.15 One or more of the parameters shown in are not limited.

[0222] As an example, the frame structure of the multi-link awareness measurement reconfiguration response frame is as follows: Fig.16 As shown. Fig.16 , the multi-link awareness measurement reconfiguration response frame carries a measurement session ID indication field and a multi-link awareness measurement reconfiguration parameter element.

[0223] 520. The perception initiating device receives a response frame to the first request frame.

[0224] The response frame of the first request frame is hereinafter referred to as the first response frame. The first response frame includes a status code field. The perception response frame establishes parameters based on whether the perception measurement requested in the first request frame is accepted, and the status code field may include the following possibilities:

[0225] The status code field indicates that the multi-link awareness measurement reconfiguration parameter element requested in the first request frame is accepted; or,

[0226] The status code indicates that the multi-link sensing measurement reconfiguration parameter element requested in the first request frame is partially accepted, and the first response frame carries the identification information of the link accepted by the sensing responder, or,

[0227] The status code indicates that the multilink perception measurement reconfiguration parameter element requested in the first request frame is partially rejected, and the first response frame carries the perception measurement establishment parameters recommended by the perception response end, or,

[0228] The status code indicates that the multi-link awareness measurement reconfiguration parameter element requested in the first request frame is rejected, and the first response frame does not carry the recommended awareness measurement establishment parameters.

[0229] In the case where the status code field indicates the first two possibilities mentioned above, the establishment of the perception measurement is completed, and the configuration of the perception measurement parameters (or operational parameters of the perception measurement) of the second link is completed.

[0230] Optionally, if the first request frame is the improved multi-link awareness measurement request frame as described above, the status code field is carried in the corresponding multi-link awareness measurement response frame. If the first request frame is Fig.15 the newly designed multi-link awareness measurement reconfiguration request frame in [reference], then the first response frame is a multi-link awareness measurement reconfiguration response frame, and the status code field can be carried in the multi-link awareness measurement reconfiguration parameter element of the multi-link awareness measurement reconfiguration response frame, or it can also be carried in other positions, without limitation.

[0231] In the embodiments involving link reconfiguration in the above solutions, the process of reconfiguring a new link should be completed before the timer expires.

[0232] Fig.17 It is a schematic interaction flowchart for the sensing initiator to initiate the link reconfiguration process. Taking APMLD as the sensing initiator and non-AP MLD as the sensing responder as an example. After APMLD announces in the beacon frame that the first link is to be removed, it sends a multi-link awareness measurement reconfiguration request frame. Among them, a timer is carried in the beacon frame. As an example, this timer can be an AP removal timer (such as an AP removal timer). Non-AP MLD replies to APMLD with a multi-link awareness measurement reconfiguration response frame. The process of reconfiguring the second link should be completed before the AP removal timer expires.

[0233] It should be understood that Fig.17 in [reference], taking the newly designed multi-link awareness measurement reconfiguration request frame and multi-link awareness measurement reconfiguration response frame as examples, obviously, the above-mentioned multi-link awareness measurement request frame and its corresponding multi-link awareness measurement response frame can also be used for the configuration of the second link, as shown in Fig.17 the frames shown by the dashed box in [reference]. In this case, the interaction behaviors of APMLD and non-AP MLD are similar and will not be elaborated here.

[0234] In the above Fig.17 in [reference], taking AP MLD as the sensing initiator, non-AP MLD as the sensing responder, and AP MLD initiating a link reconfiguration request as an example. Also, it is the sensing initiator that initiates the link reconfiguration request. Next, in combination with Fig.18 a example of a non-AP MLD as the sensing responder initiating a link reconfiguration request is given.

[0235] Fig.18 It is a schematic interaction diagram of the link reconfiguration process for the sensing responder to request link reconfiguration.

[0236] For example, the Non-AP MLD sends a link reconfiguration request frame, and may carry fields such as a timer, an identifier of the first link to be removed (link ID), and a recommended Link ID (for example, represented as a reconfiguration link ID) in the link reconfiguration request frame. The link reconfiguration request frame is used to notify the AP MLD that the first link will be closed after the timer expires and to request link reconfiguration. Based on the link reconfiguration request frame, the AP MLD replies with a link reconfiguration response frame to the Non-AP MLD. Optionally, in another implementation, the link reconfiguration request frame may not include a timer, and a default value, such as 20ms, may be set for the duration of the timer. The link reconfiguration response frame is used to indicate whether the AP MLD accepts the link reconfiguration request. If the AP MLD accepts the request, link reconfiguration is initiated. The process of APMLD initiating link reconfiguration can be found in. Fig.17 The corresponding instructions in will not be repeated here.

[0237] The link reconfiguration request frame in this embodiment is an example of the second request frame in this application, and the link reconfiguration response frame is an example of the second response frame.

[0238] In addition, the present application also provides the frame structure design of the link reconfiguration request frame and the link reconfiguration response frame. Fig.19 and Fig. 20 Provide explanation.

[0239] Fig.19 Schematic diagram of the frame structure of a link reconfiguration request frame. The link reconfiguration request frame carries a link expiry exponent field, which is used to indicate the expiration time of the first link or the expiration time for link reconfiguration. The process of reconfiguring the link is completed before the expiration time indicated by the link expiry index, or at the latest when the expiration time expires. The first link is closed after the expiration time indicated by the link expiration index expires. In addition, optionally, the link reconfiguration request frame also carries a reconfiguration link bitmap field, which is used to indicate the link to be removed and the recommended link. As an example, the position of the link ID to be removed is set to 0, and the position of the recommended link ID is set to 1.

[0240] Fig. 20 This is a schematic diagram of the frame structure of a link reconfiguration response frame. Fig. 20 , the link reconfiguration response frame may include a status code field, which is used to indicate whether the AP MLD agrees to perform link reconfiguration. Exemplarily, the status code field of the link reconfiguration response frame may indicate two states, namely success and request_declined. Among them, success indicates agreement to perform link reconfiguration, while request_declined indicates refusal to perform link reconfiguration. In addition, the link reconfiguration response frame may also include a reconfiguration link field, and the reconfiguration link field is used to indicate the link to be reconfigured. In another implementation, the link reconfiguration response frame may not carry the status code field. In this case, the link reconfiguration response frame is used to indicate the reception of the link reconfiguration request frame (acknowledge, ACK) or to indicate the reception of the link reconfiguration request frame. In yet another implementation, Fig.16 The interactive process shown may not involve a link reconfiguration response frame, that is, after the sensing responder sends a link reconfiguration request frame, the sensing initiator directly sends a multi-link sensing measurement reconfiguration request frame, and then the sensing responder replies to the sensing initiator with a multi-link sensing measurement reconfiguration response frame. In the case where the link reconfiguration process does not include a link reconfiguration response frame, the link reconfiguration request frame does not include a dialog token field.

[0241] In another implementation, removing the first link and requesting to reconfigure the second link can also be considered as requesting to replace the first link with the second link. In this case, the reconfigured link field is used to indicate the link to be replaced and the reconfigured link. As an example, the reconfigured link field can be a bitmap, where the position of the link ID to be replaced is set to 0, and the position of the link ID to be reconfigured is set to 1.

[0242] In the process of reconfiguring links, the closed links may be one or more, and the reconfigured links may be one or more, without limitation. In particular, if the number of closed links is equal to the number of reconfigured links, it can be considered as the above-mentioned link replacement, for example, closing a first link and reconfiguring a second link means replacing the first link with the second link.

[0243] According to the above introduction, the TB perception measurement interaction is initiated by the AP as the perception initiator, while the non-TB perception measurement interaction instance is initiated by the non-AP STA as the perception initiator. The perception measurement interaction process in the above schemes 1 to 4 is applicable not only to the TB perception measurement process, but also to the non-TB perception measurement process.

[0244] Specifically, the process of closing the link and the perception measurement session in the above schemes 1 to 4, the design of the relevant frame structure and the process of reconfiguring the link are also applicable to the non-TB perception measurement process. Specifically, it may include:

[0245] 1. For the TB-aware measurement process, the link reconfiguration process can occur after the AP MLD announces the removal of a link or before the announcement, as long as the process of removing the first link and reconfiguring the second link is completed before the timer expires. For the non-TB-aware measurement process, the link reconfiguration process can occur after the non-APMLD receives the announcement of closing the first link from the beaconframe of the AP MLD. Similarly, the process of reconfiguring the second link needs to be completed before the timer expires.

[0246] 2. During the link reconfiguration process, in the TB sensing measurement process, the elements carried by the sensing sub-element in the frame structure are elements for the TB sensing interaction process, while in the non-TB sensing measurement process, the sensing sub-element carries elements for the non-TB sensing interaction process, such as non-TB sensing specific sub-element.

[0247] 3. Regarding the link reconfiguration process, in the above TB perception measurement interaction, if the non-AP STA needs to remove the link and request link reconfiguration, the non-AP STA needs to send a link reconfiguration request frame to the AP MLD. In the non-TB perception measurement interaction, the non-AP STA does not need to send a link reconfiguration request frame and can directly initiate link reconfiguration. The link reconfiguration process is completed before the non-AP is deleted, deactivated, or the attached STA enters the power saving mode.

[0248] The above describes in detail the process of removing a link in a multi-link scenario and the possible link reconfiguration while removing a link. In the above embodiments, the present application proposes the concept of redundant links. On this basis, the present application also provides an improved multi-link perception measurement request frame to increase the setting of redundant links in the multi-link perception measurement establishment phase to improve the reliability of perception measurement interaction and the flexibility of perception measurement establishment. This is introduced in Solution 5 below.

[0249] Solution 5

[0250] Fig.21 A schematic flowchart of a method for perceptual measurement provided in the present application.

[0251] 610. The perception initiating device sends first information, where the first information is used to determine whether the link requested to be established for the perception measurement session includes a redundant link, wherein the link requested to be established for the perception measurement session includes at least one of a mandatory link and an optional link, and the redundant link is a backup link of the mandatory link or the optional link.

[0252] 620. The perception initiating device establishes perception measurement based on the first information.

[0253] In an implementation manner, the first information may be carried in a multi-link awareness measurement request frame.

[0254] For example, the multi-link perception measurement request frame includes a minimum link number field and a maximum link number field, wherein the minimum link number field is used to indicate the requested minimum number of links, and the maximum link number field is used to indicate the requested maximum number of links. If the value indicated by the minimum link number and the value indicated by the maximum link number are equal, it means that the links requested to be established for the perception measurement session do not include redundant links. If the values ​​indicated by the minimum link number and the maximum link number are not equal, it means that the links requested to be established for the perception measurement session include redundant links.

[0255] Fig. 22 This is an example of a multi-link awareness measurement request frame carrying the first information. Fig. 22 , the minimum link number field and the maximum link number field are carried in the sensing link common information (sensinglink common information) of the multi-link sensing measurement request frame. Among them, the sensing link common information indicates the parameter information shared by the links established for sensing measurement. The mandatory link bitmap is used to indicate the links that must be used for sensing measurement, that is, to indicate the mandatory links in the embodiment of the present application. The number of requested links is used to indicate the number of links required for sensing measurement. The recommended link report bitmap indicates the links recommended for sending sensing measurement reports in sensing measurement interaction.

[0256] Fig.23 Another example of a multi-link awareness measurement request frame carrying the first information. Fig.23 The minimum number of links field is carried in the sensing link common information of the multi-link sensing measurement request frame. In this example, the multi-link sensing measurement request frame only carries the minimum number of links field.

[0257] In another implementation, the first information is a newly added field in the multi-link awareness measurement request frame, for example, a redundancy indication field. The redundancy indication field is used to indicate whether an optional link in the link requested to be established for the awareness measurement session is a redundant link.

[0258] Fig.24This is another example of a multi-link awareness measurement request frame carrying the first information. Fig.24 , the redundancy indication field is included in the common information of the perception link of the multi-link perception measurement request frame. For example, assuming that the link requested to be established for the perception measurement session includes an optional link, the redundancy indication field is set to a first value, such as "1", indicating that the optional link is a redundant link; if the redundancy indication field is set to a second value, such as "0", it indicates that the optional link is not a redundant link. When the link requested to be established for the perception measurement session includes multiple optional links, the redundancy indication field can be used to indicate the link identifier of the optional link that is a redundant link to indicate a redundant link among the multiple optional links.

[0259] In solution 5, by adding redundant links in the process of establishing multi-link perception measurement, the reliability of perception measurement interaction is improved. In addition, by setting the minimum link number and the maximum link number fields, the flexibility of establishing perception measurement is increased.

[0260] As described above, the names of frames, messages, information or fields in the embodiments of the present application are merely examples set to facilitate the description of the technical solutions of the present application. In different communication systems, these names may also be different from the examples in the embodiments of the present application.

[0261] In addition, in some embodiments, in the action field of the frame, the field after the category (category) is an octet long and can be public action or Protected Dual of Public Action or PublicAction / Protected Dual of Public Action. If it is Protected Dual of Public Action, it means that the frame is a protected frame structure.

[0262] by Figure 7 The perception measurement process shown is taken as an example. "Multi-link perception measurement establishment" can also be called "multi-link perception measurement session", and can also be replaced by "perception measurement establishment" or "perception measurement session", that is, the prefix of "multilink" is cancelled. "Multi-link perception measurement interaction" can also be called "multi-link perception measurement instance", "perception measurement interaction" or "perception measurement instance". "Multi-link perception measurement shutdown" can also be called "perception measurement shutdown".

[0263] For another example, in the link reconfiguration process, the names of the multilink perception measurement reconfiguration request frame and the multilink perception measurement reconfiguration response frame may also remove the prefix "multilink" and be called "perception measurement reconfiguration request frame" and "perception measurement reconfiguration response frame" respectively. The names of the "multilink perception measurement request frame" and the "multilink perception measurement response frame" may also be replaced with "perception measurement request frame" and "perception measurement response frame" respectively.

[0264] For another example, the "redundant link" in each embodiment of the present application may also be referred to as a "backup link"; the "optional link" may also be referred to as a "preferred link", etc. In the frame structure design, Figure 22 to Figure 24 The "perception link common information" can also be called "common information".

[0265] In addition, some fields appearing in the embodiments of the present application are uniformly described:

[0266] Perception backhaul information: used to instruct non-associated devices to send perception measurement query frames to the AP within a given time to participate in perception measurement.

[0267] Measurement session ID indication: Indicates the session ID

[0268] Perception measurement parameter element: used to set parameters for perception measurement interaction, including perception measurement parameter domain and perception sub-elements.

[0269] Perception Measurement Parameters: are fields in the Perception Measurement Parameters element.

[0270] Perception sub-element: It is a field in the perception measurement parameter element, which varies according to the perception measurement type. It can be a TB perception specific sub-element, a Non-TB perception specific sub-element, or an SBP specific sub-element.

[0271] The fields in the Perception Measurement Parameters domain include:

[0272] Sensing transmitter: Indicates that the function of the device is to send sensing PPDUs.

[0273] Sensing receiver: Indicates that the function of the device is to receive sensing PPDU.

[0274] Sensing measurement report requested: indicates whether the device sends a sensing measurement report.

[0275] Measurement setup expiry exponent: A timer indicating when a session is closed.

[0276] Bandwidth (BW): Indicates the bandwidth used by the device.

[0277] TX HE-LTF Repetition: indicates the number of HE-LTF repetitions used by the device to send NDP.

[0278] RX HE-LTF Repetition: Indicates the number of HE-LTF repetitions used by the device to receive NDP

[0279] Transmit Time Space Streams (TX STS): Indicates the number of streams used by the device to transmit NDP within the specified bandwidth.

[0280] Receiver Time Space Streams (RX STS): Indicates the number of streams used by the device to receive NDP within the specified bandwidth.

[0281] Number of Rx antennas: indicates the number of antennas used by the receiving end.

[0282] Report timestamp: indicates whether there is a report timestamp in the perception measurement report frame.

[0283] Subcarrier Grouping Indicates the subcarrier grouping in the perception measurement report.

[0284] Basic service set color information (BSS Color Information): indicates the basic service set color.

[0285] In addition, in some embodiments, a link-related bitmap is involved, and the bitmap can be used to indicate a link ID. For example, when the i-th bit in the bitmap is set to 1, it is used to indicate a link with a link ID of i-1, where i is an integer. The link-related bitmap can indicate a link list or a link ID, without limitation.

[0286] The above describes in detail the method for sensing measurement provided by the present application and introduces the communication device provided by the present application.

[0287] In order to implement the functions of the communication device (eg, AP MLD or non-AP MLD) in the embodiments of the present application, the communication device may implement the corresponding functions in the form of a hardware structure, a software module, or a hardware structure plus a software module.

[0288] See also Fig.25 , Fig.25A schematic structural diagram of a communication device provided in this application.

[0289] like Fig.25 The communication device 1000 includes a processing module 1001 and a communication module 1002. The communication device 1000 may be a communication device, or may be a device applied to a communication device and capable of implementing corresponding functions of the communication device, such as a chip, a chip system or a circuit. Exemplarily, the communication device may include a perception initiator (such as an AP MLD or a non-AP MLD), a perception responder (such as a non-AP MLD, an AP MLD), and the like.

[0290] Among them, the communication module can also be a transceiver module, a transceiver, a transceiver, or a transceiver device, etc. The processing module can also be a processor, a processing board, a processing unit, or a processing device, etc. Optionally, the communication module is used to perform the sending operation and the receiving operation of the perception initiator or the perception response end in any method embodiment. The device used to implement the receiving function in the communication module can be regarded as a receiving unit, and the device used to implement the sending function in the communication module can be regarded as a sending unit, that is, the communication module includes a receiving unit and a sending unit. The processing module is used to perform operations / processing related to the internal implementation of the perception initiator or the perception response end in any method embodiment. It should be understood that the corresponding specific operations of each module can be found in the description in the method embodiment, and will not be repeated.

[0291] In addition, it should be noted that the aforementioned communication module and / or processing module can be implemented through a virtual module, for example, the processing module can be implemented through a software function unit or a virtual device, and the communication module can be implemented through a software function or a virtual device. Alternatively, the processing module or the communication module can also be implemented through a physical device, for example, if the device is implemented using a chip / hardware circuit, the communication module can be an input-output circuit and / or a communication interface, performing input operations (corresponding to the aforementioned receiving operations) and output operations (corresponding to the aforementioned sending operations); the processing module is an integrated circuit or a logic circuit, etc.

[0292] The division of modules in this application is schematic and is only a logical function division. There may be other division methods in actual implementation. In addition, each functional module in each example of this application may be integrated into one module, or may exist physically separately, or two or more modules may be integrated into one module. The above-mentioned integrated modules may be implemented in the form of hardware, or in the form of software functional modules, or in the form of a combination of hardware and software functional modules, without limitation.

[0293] See also Fig.26 , the present application also provides a schematic structural diagram of another communication device.

[0294] The communication device 1100 can be used to implement the functions of any network element (e.g., AP MLD or non-AP MLD) in the communication system described in the above examples. The communication device 1100 may include at least one processor 1110. Optionally, the processor 1110 (or processing device) is coupled to a memory, and the memory may be located within the communication device, or the memory may be integrated with the processor, or the memory may be located outside the communication device. For example, the communication device 1100 may also include at least one memory 1120. The memory 1120 stores the necessary computer programs, instructions and / or data, etc. for implementing any of the above embodiments; the processor 1110 may execute the computer programs, instructions and / or data, etc. stored in the memory 1120 to complete the corresponding functions of the AP MLD or non-AP MLD in any of the above embodiments.

[0295] The communication device 1100 may also include a communication interface 1130, and the communication device 1100 may exchange information with other devices through the communication interface 1130. Exemplarily, the communication interface 1130 may be a transceiver, a circuit, a bus, a module, a pin, or other types of communication interfaces. When the communication device 1100 is a chip-type device or circuit, the communication interface 1130 in the device 1100 may also be an input / output circuit, which may input information (or receive information) and / or output information (or send information), and the processor may be an integrated circuit or a logic circuit, etc., and the processor may determine the output information based on the input information.

[0296] The coupling in this application is an indirect coupling or communication connection between devices, units or modules, which can be electrical, mechanical or other forms, and is used for information exchange between devices, units or modules. The processor 1110 may cooperate with the memory 1120 and the communication interface 1130. The connection medium between the above-mentioned processor 1110, the memory 1120 and the communication interface 1130 is not limited in this application.

[0297] like Fig. 27 The present application also provides a chip, wherein the chip 30 includes a circuit 31 and a communication interface 32. The circuit 31 may be a logic circuit, an integrated circuit, etc., and the communication interface 32 may also be an input / output circuit, an input / output interface, an interface circuit, etc., which may input information (or receive information) or output information (or send information). The chip 30 may execute the method executed by the perception initiating device or the perception responding device in each embodiment of the present application.

[0298] In addition, the present application also provides a computer-readable storage medium, in which computer instructions are stored. When the computer instructions are executed on a computer, the operations and / or processing performed by the perception initiator or the perception responder in each method embodiment of the present application are executed.

[0299] The present application also provides a computer program product, which includes computer program code or instructions. When the computer program code or instructions are run on a computer, the operations and / or processing performed by the perception initiator or the perception responder in the various method embodiments of the present application are executed.

[0300] In addition, the present application also provides a chip, the chip including a processor. A memory for storing a computer program is provided independently of the chip, and the processor is used to execute the computer program stored in the memory, so that the operation and / or processing performed by the perception initiator or the perception responder in any method embodiment is executed.

[0301] Furthermore, the chip may further include a communication interface. The communication interface may be an input / output interface, or an interface circuit, etc. Furthermore, the chip may further include a memory.

[0302] The present application provides a communication system, including the perception initiator and the perception responder in the above method embodiment.

[0303] In this application, the processor may be a general-purpose processor, a digital signal processor, an application-specific integrated circuit, a field programmable gate array or other programmable logic device, a discrete gate or transistor logic device, or a discrete hardware component, and may implement or execute the methods, steps, and logic block diagrams disclosed in this application. A general-purpose processor may be a microprocessor or any conventional processor, etc. The steps of the method disclosed in this application may be directly embodied as being executed by a hardware processor, or may be executed by a combination of hardware and software modules in the processor.

[0304] In the present application, the memory may be a non-volatile memory, such as a hard disk drive (HDD) or a solid-state drive (SSD), etc., or a volatile memory (volatile memory), such as a random-access memory (RAM). The memory is any other medium that can be used to carry or store the desired program code in the form of instructions or data structures and can be accessed by a computer, but is not limited thereto. The memory in the present application may also be a circuit or any other device that can implement a storage function, for storing program instructions and / or data.

[0305] In addition, the present application provides a communication device, comprising at least one processor, wherein the at least one processor is coupled to at least one memory, and the at least one processor is used to execute a computer program or instruction stored in the at least one memory so that the communication device has the above-mentioned AP MLD or non-AP MLD function.

[0306] The present application also provides a chip, including a processor and a communication interface, wherein the communication interface is used to receive information and / or data to be processed, and send the information and / or data to be processed to the processor, and the processor is used to process the information and / or data to be processed, so that the communication device installed with the chip has the function of AP MLD or non-AP MLD in any of the above embodiments.

[0307] The present application also provides a computer-readable storage medium, in which computer instructions are stored. When the computer instructions are executed on a computer, the functions of the AP MLD or non-APMLD in any of the above embodiments are implemented.

[0308] The present application also provides a computer program product, which includes computer program code. When the computer program code runs on a computer, the function of the AP MLD or non-AP MLD in any of the above embodiments is implemented.

[0309] The present application also provides a wireless communication system, including one or more network elements in any one of the above embodiments. Exemplarily, the communication system includes at least one AP MLD and at least one non-AP MLD.

[0310] Those of ordinary skill in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of this application.

[0311] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0312] In the several embodiments provided in the present application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. For example, the device embodiments described above are only schematic. For example, the division of the units is only a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0313] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0314] In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0315] If the functions are implemented in the form of software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application can be essentially or partly embodied in the form of a software product that contributes to the prior art. The computer software product is stored in a storage medium and includes several instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the methods described in each embodiment of the present application. The aforementioned storage medium includes: various media that can store program codes, such as a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk.

[0316] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art who is familiar with the present technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A method for perceptual measurement, It is characterized in that include: Determine a link type of a first link, where the first link is a link to be removed from multiple links of the perception measurement session, and the link type includes a mandatory link, an optional link, or a redundant link; The first link is removed according to the link type of the first link.

2. The method according to claim 1, It is characterized in that The removing the first link according to the link type of the first link includes: If the first link is the mandatory link or the optional link, remove the first link after the timer expires; And, the method further comprises: Close the perception measurement session.

3. The method according to claim 1, It is characterized in that The removing the first link according to the link type of the first link includes: If the first link is the optional link, removing the first link after the timer expires; And, the method further comprises: Perform link reconfiguration before the timer expires.

4. The method according to claim 1, It is characterized in that The removing the first link according to the link type of the first link includes: If the first link is the redundant link, the first link is removed after the timer expires.

5. The method according to claim 3, It is characterized in that The link reconfiguration before the timer expires includes: A first request frame is sent, where the first request frame is used to indicate a request to reconfigure a second link of the perception measurement session, and the first request frame carries information about the second link, where the information about the second link includes an identifier of the second link and perception measurement parameters of the second link.

6. The method according to claim 5, It is characterized in that The first request frame includes a multi-link control field and a multi-link awareness measurement parameter element, the multi-link control field carries a type field, the type field is used to indicate that the multi-link awareness measurement element is a reconfigured multi-link awareness measurement parameter element, and the multi-link awareness measurement parameter element carries information about the second link.

7. The method according to claim 6, It is characterized in that The multi-link control field further includes a first field, wherein the first field is used to indicate whether the first request frame includes a link change bitmap, wherein the link change bitmap is used to determine the first link to be removed and the second link requested to be reconfigured; In a case where the first field indicates that the first request frame includes the link change bitmap, the multi-link awareness measurement parameter element further includes a link change bitmap field.

8. The method according to claim 6 or 7, It is characterized in that The multi-link awareness measurement parameter element further carries a multi-link awareness sub-element field, and the multi-link awareness sub-element field carries link-level awareness measurement parameters of the second link based on different awareness measurement types.

9. The method according to claim 5, It is characterized in that The first request frame also carries an identifier of the perception measurement session; The first request frame carries a multi-link awareness measurement reconfiguration parameter element, and the multi-link awareness measurement reconfiguration parameter element carries information of the second link requested to be reconfigured.

10. The method according to claim 9, It is characterized in that The multi-link awareness measurement reconfiguration parameter element carries information of the second link requested to be reconfigured, including: The multi-link perception measurement reconfiguration parameter element includes link information of the second link, the link information includes an identifier of the second link and perception measurement parameters of the second link, and the link information also includes a perception sub-element, and the perception sub-element carries link-level perception measurement parameters of the second link based on different perception measurement types.

11. The method according to claim 9 or 10, It is characterized in that The method further comprises: receiving a first response frame to the first request frame, the first response frame comprising a status code field, the status code field indicating acceptance of the multi-link awareness measurement reconfiguration parameter element requested in the first request frame, or The status code indicates that the multi-link awareness measurement reconfiguration parameter element requested in the first request frame is partially accepted, and the first response frame also carries identification information of the accepted link, or The status code indicates that the multi-link measurement reconfiguration parameter element requested in the first request frame is rejected, and the first response frame also carries a recommended perception measurement establishment parameter, or, The status code indicates that the sensing measurement reconfiguration parameter element requested in the first request frame is rejected, and the multi-link sensing measurement reconfiguration parameter element does not carry a recommended sensing measurement establishment parameter.

12. The method according to any one of claims 5 to 11, It is characterized in that Before sending the first request frame, the method further includes: A second request frame is received, where the second request frame is used to indicate a request for link reconfiguration for the perception measurement session.

13. The method according to claim 12, It is characterized in that The method further comprises: A second response frame is sent, wherein the second response frame indicates confirmation of receiving the second request frame.

14. The method according to claim 12 or 13, It is characterized in that The second request frame carries a link expiration index, where the link expiration index indicates the duration of a timer used for performing the link reconfiguration.

15. The method according to any one of claims 12 to 14, It is characterized in that The second request frame also carries a link reconfiguration bitmap field, where the link reconfiguration bitmap field is used to indicate an identifier of the first link to be removed and an identifier of the second link requested to be reconfigured.

16. The method according to any one of claims 1 to 15, It is characterized in that The method is applied to trigger-based perception measurement or non-trigger-based perception measurement.

17. A communication device, It is characterized in that The method comprises a module or a unit for executing the method according to any one of claims 1 to 16.

18. A communication device, It is characterized in that The device comprises a processor, the processor is coupled to a memory, and the processor is used to execute a computer program or instruction stored in the memory, so that the communication device executes the method according to any one of claims 1 to 16.

19. A chip, It is characterized in that It includes a circuit and a communication interface, wherein the communication interface is used to receive information and / or data to be processed and send the information and / or data to be processed to the circuit, and the circuit is used to process the information and / or data to be processed, so that the communication device installed with the chip executes the method as described in any one of claims 1 to 16.

20. A computer-readable storage medium, It is characterized in that The computer-readable storage medium stores computer instructions. When the computer instructions are executed on a computer, the method according to any one of claims 1 to 16 is implemented.

21. A wireless communication system, It is characterized in that Comprising a communication device as claimed in claim 17 or claim 18.

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