Communication method, communication device, and communication system
By carrying the BSSID identification information of neighboring access point devices in the wireless frame and coordinating R-TWT scheduling, the interference and resource waste problems of low-latency service transmission in the R-TWT mechanism are solved, and efficient and reliable low-latency service transmission and stability optimization of the Wi-Fi network are achieved.
Patent Information
- Application Number
- PCT/CN2024/083646
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2024-03-25
- Publication Date
- 2025-10-02
AI Technical Summary
The existing R-TWT mechanism has problems of interference and resource waste in the transmission of low-latency services, and needs to be further improved to ensure the reliable transmission of low-latency services.
By carrying the BSSID identification information of neighboring access point devices in the wireless frame, information exchange between access point devices and site devices is achieved, R-TWT scheduling is coordinated, scheduling conflicts and interference are avoided, and resource allocation is optimized.
It improves the transmission efficiency and reliability of low-latency services, reduces device power consumption, and enhances the stability and resource utilization of Wi-Fi networks.
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Figure CN2024083646_02102025_PF_FP_ABST
Abstract
Description
Communication method, communication equipment and communication system Technical Field
[0001] The present disclosure relates to the field of communication technology, and in particular to a communication method, communication equipment, and communication system. Background Art
[0002] Currently, Wi-Fi technology research focuses on Ultra High Reliability (UHR), with the goal of improving the reliability of Wireless Local Area Networks (WLAN) connections, reducing latency, improving manageability, increasing throughput at different signal-to-noise ratio (SNR) levels, and reducing device-level power consumption.
[0003] In wireless local area networks, a restricted target wake time (R-TWT) mechanism is proposed. During each negotiated restricted target wake time service period (R-TWT SP), only services marked as low-latency services can communicate, and other services are suspended or postponed during this period. The R-TWT mechanism effectively ensures the communication of low-latency services while reducing device power consumption. Therefore, it is necessary to further improve the low-latency service transmission mechanism of the R-TWT mechanism to ensure the reliable transmission of low-latency services.
[0004] Summary of the Invention
[0005] The embodiments of the present disclosure provide a communication method, a communication device, and a communication system to provide a low-latency service transmission mechanism that further improves the R-TWT mechanism.
[0006] In one aspect, an embodiment of the present disclosure provides a communication method, applied to a first access point device, the method comprising:
[0007] The first access point device determines a first radio frame; the first radio frame includes first identification information, where the first identification information identifies a basic service set identifier (BSSID) of a neighboring access point device; wherein the neighboring access point device is a neighboring access point device that can be monitored by the first access point device;
[0008] The first radio frame is sent.
[0009] On the other hand, an embodiment of the present disclosure further provides a communication method, applied to a site device, the method comprising:
[0010] The site device receives a first wireless frame sent by a first access point device; the first wireless frame includes first identification information, and the first identification information identifies a set of BSSIDs where all neighboring access point devices are located; wherein the neighboring access point device is a neighboring access point device that can be monitored by the first access point device.
[0011] On the other hand, an embodiment of the present disclosure further provides a communication device, wherein the communication device is a first access point device, and the first access point device includes:
[0012] A determination module, configured to determine a first radio frame; the first radio frame includes first identification information, where the first identification information identifies a basic service set identifier (BSSID) of a neighboring access point device; wherein the neighboring access point device is a neighboring access point device that can be monitored by the first access point device;
[0013] A sending module is used to send the first wireless frame.
[0014] On the other hand, an embodiment of the present disclosure further provides a communication device, wherein the communication device is a site device, and the site device includes:
[0015] A receiving module is used to receive a first wireless frame sent by a first access point device; the first wireless frame includes first identification information, and the first identification information identifies a set of BSSIDs where all neighboring access point devices are located; wherein the neighboring access point device is a neighboring access point device that can be monitored by the first access point device.
[0016] On the other hand, an embodiment of the present disclosure further provides a communication device, wherein the communication device is a first access point device, including:
[0017] one or more processors;
[0018] The first access point device is used to execute the communication method described in the embodiment of the present disclosure.
[0019] On the other hand, an embodiment of the present disclosure further provides a communication device, wherein the communication device is a site device, including:
[0020] one or more processors;
[0021] The site device is used to execute the communication method described in the embodiment of the present disclosure.
[0022] An embodiment of the present disclosure further provides a communication system, including a first access point device and a site device; wherein the first access point device is configured to implement the communication method described in the embodiment of the present disclosure, and the site device is configured to implement the communication method described in the embodiment of the present disclosure.
[0023] The embodiment of the present disclosure further provides a storage medium storing instructions. When the instructions are executed on a communication device, the communication device executes the communication method as described in the embodiment of the present disclosure.
[0024] In an embodiment of the present disclosure, a first access point device determines a first radio frame; the first radio frame includes first identification information, where the first identification information identifies a basic service set identifier (BSSID) of a neighboring access point device; wherein the neighboring access point device is a neighboring access point device that can be monitored by the first access point device; the first radio frame is sent to report the neighboring access point devices in other BSSs that can be monitored by the first access point device and their associated site devices, thereby improving the efficient and reliable transmission of low-latency services.
[0025] Additional aspects and advantages of the embodiments of the present disclosure will be given in part in the following description, which will become apparent from the following description or be learned through practice of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS
[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the following drawings required for describing the embodiments are introduced. The following drawings are merely some embodiments of the present disclosure and do not impose specific limitations on the protection scope of the present disclosure.
[0027] FIG1 is one of exemplary schematic diagrams of an architecture of a communication system provided according to an embodiment of the present disclosure;
[0028] FIG2 is an exemplary interaction diagram of a method provided according to an embodiment of the present disclosure;
[0029] FIG3 is a second exemplary schematic diagram of the architecture of a communication system provided according to an embodiment of the present disclosure;
[0030] FIG4 is a flow chart of a communication method according to an embodiment of the present disclosure;
[0031] FIG5 is a second flow chart of the communication method provided in an embodiment of the present disclosure;
[0032] FIG6 is a third flow chart of the communication method provided in an embodiment of the present disclosure;
[0033] FIG7 is a schematic structural diagram of a first access point device proposed in an embodiment of the present disclosure;
[0034] FIG8 is a schematic structural diagram of a site device proposed in an embodiment of the present disclosure;
[0035] FIG9 is a schematic diagram of the structure of a terminal proposed in an embodiment of the present disclosure;
[0036] FIG10 is a schematic diagram of the structure of a chip proposed in an embodiment of the present disclosure. DETAILED DESCRIPTION
[0037] The embodiments of the present disclosure provide a communication method, a communication device, and a communication system.
[0038] In a first aspect, an embodiment of the present disclosure provides a communication method, the method comprising:
[0039] The first access point device determines a first radio frame; the first radio frame includes first identification information, where the first identification information identifies a basic service set identifier (BSSID) of a neighboring access point device; wherein the neighboring access point device is a neighboring access point device that can be monitored by the first access point device;
[0040] The first radio frame is sent.
[0041] In the above embodiment, the first access point device sends the BSS identifier of the neighboring access point device that it can monitor to the station device through the first radio frame, so that the first access point device and the access point device can subsequently avoid OBSS transmission interference based on the BSSID of the neighboring access point device.
[0042] In combination with some embodiments of the first aspect, in some embodiments, the first radio frame includes a first element, and the first identification information is carried in the first element;
[0043] The first element includes at least one of the following:
[0044] A first field, identifying the first element, is used to identify the first element as a neighbor access point identifier set element;
[0045] The second field identifies the byte length of the first element;
[0046] The third field includes one or more of the first identification information.
[0047] In the above embodiment, by identifying the first element as a neighbor access point identification set element, the station device can more easily identify the information contained in the first radio frame and, therefore, identify neighboring access point devices. Furthermore, by precisely designing and configuring the first radio frame structure, the station device can simplify parsing and processing the first radio frame, improving parsing efficiency and accuracy while reducing system complexity and overhead.
[0048] In conjunction with some embodiments of the first aspect, in some embodiments, the method further includes at least one of the following:
[0049] The first field includes an element ID field;
[0050] The second field includes a length field;
[0051] The third field includes an overlapping basic service set identifier (OBSS BSSID Set) field.
[0052] In the above embodiment, the element identification field and the length field enable the site device to accurately identify and parse each element in the data, thereby avoiding parsing errors caused by unclear data format.
[0053] In combination with some embodiments of the first aspect, in some embodiments, the first wireless frame includes at least one of a beacon frame, a probe response frame, an association response frame, and a reassociation response frame.
[0054] In the above embodiment, the type of the first radio frame helps to achieve network discovery, connection, management, and optimization, thereby enhancing the stability of the Wi-Fi network.
[0055] In conjunction with some embodiments of the first aspect, in some embodiments, the method further includes:
[0056] Receiving a second radio frame sent by a site device; wherein the second radio frame indicates that the site device requests to join a first restricted target wake-up time R-TWT schedule of the first access point device;
[0057] The second radio frame includes second identification information, where the second identification information identifies second R-TWT scheduling information broadcast by the second access point device;
[0058] The second access point device does not include a neighboring access point device identified by the first identification information in the first wireless frame, and the site device monitors that the signal strength of the second access point device is higher than a preset signal strength threshold.
[0059] In the above embodiment, the second wireless frame also includes second identification information, and the second identification information identifies: the second R-TWT scheduling information broadcast by the second access point device, so that the first access point device schedules the R-TWT scheduling requested by the site device to join according to the second R-TWT scheduling information, avoiding the overlap of the service time of the R-TWT scheduling requested by the site device and the second R-TWT scheduling, which interferes with the communication of the site device, causes a decline in communication quality and waste of communication resources, and realizes reasonable optimization of communication resource allocation.
[0060] In combination with some embodiments of the first aspect, in some embodiments, the second identification information is carried in a target wake-up time TWT element of the second radio frame;
[0061] The TWT element includes: a first broadcast target wake-up time parameter set Broadcast TWT Parameter Set field and a second Broadcast TWT Parameter Set field;
[0062] Among them, the first Broadcast TWT Parameter Set field identifies the first R-TWT scheduling; the second Broadcast TWT Parameter Set field identifies the second R-TWT scheduling.
[0063] In the above embodiment, the second identification information is carried in the TWT element, so that the first access point device can coordinate the R-TWT scheduling between multiple access point devices based on the second identification information. Such flexibility can enable the network to better adapt to different scenarios and needs and improve resource utilization.
[0064] In combination with some embodiments of the first aspect, in some embodiments, the second Broadcast TWT Parameter Set field includes a first identification field and a second identification field;
[0065] The first identification field identifies a BSS where the second access point device is located;
[0066] The second identification field identifies the signal strength of the second access point device monitored by the site device.
[0067] In the above embodiment, the first identification domain identifies the BSS where the second access point device is located, so that the first access point device can accurately identify the existence of other surrounding BSSs. This helps to establish an accurate network topology map and provides necessary information for communication and resource management between devices. The second identification domain identifies the signal strength of the second access point device, which allows the first access point device to more accurately evaluate the signal strength difference between different access point devices, helps to achieve interaction and coordination of R-TWT scheduling between multiple access point devices, and improves the transmission efficiency of low-latency services.
[0068] In combination with some embodiments of the first aspect, in some embodiments, the second Broadcast TWT Parameter Set field also includes a request type Request Type subfield; the target wake-up time request TWT Request field and the target wake-up time setting command TWT Setup Command field of the Request Type subfield are set to reserved bits.
[0069] In the above embodiment, the solution of setting the target wake-up time request field and the target wake-up time setting command field as reserved bits helps to improve the flexibility, consistency and security of the protocol, while simplifying the implementation and maintenance process of the protocol.
[0070] In combination with some embodiments of the first aspect, in some embodiments, the second wireless frame includes at least one of an association request Association Request frame, a reassociation request Reassociation Request frame, and a target wake-up time setting TWT Setup frame.
[0071] In the above embodiment, the second radio frame type helps to achieve network discovery, connection, management, and optimization, thereby enhancing the stability of the Wi-Fi network.
[0072] In conjunction with some embodiments of the first aspect, in some embodiments, the method further includes:
[0073] Determine a third radio frame, where the third radio frame includes third identification information, where the third identification information identifies whether the first access point device accepts or rejects the site device from joining the first R-TWT scheduling;
[0074] The third radio frame is sent.
[0075] In the above embodiment, the first access point device schedules the R-TWT scheduling requested by the site device according to the second R-TWT scheduling information, so as to avoid the service time overlap between the R-TWT scheduling requested by the site device and the second R-TWT scheduling, thereby interfering with the communication of the site device, causing a decline in communication quality and waste of communication resources, and realizing reasonable optimization of communication resource allocation.
[0076] In combination with some embodiments of the first aspect, in some embodiments, if the service time of the first R-TWT schedule overlaps with the service time of the second R-TWT schedule, and the signal strength identified by the second identification field is lower than the preset signal strength threshold, the third wireless frame identifies at least one of the following:
[0077] When the first Broadcast TWT Parameter Set field is set to one of a first parameter value, a second parameter value, and a third parameter value, the third radio frame identifies that the first access point device accepts the site device from joining the first R-TWT scheduling;
[0078] When the first Broadcast TWT Parameter Set field is set to the second parameter value or the third parameter value, the third radio frame indicates that the first access point device suggests or recommends that the site device join a third R-TWT schedule; and parameters of the third R-TWT schedule are not completely consistent with parameters of the first R-TWT schedule;
[0079] When the first Broadcast TWT Parameter Set field is set to one of the first parameter value, the second parameter value and the third parameter value, the third wireless frame identifies that the first access point device refuses the site device to join the first R-TWT scheduling.
[0080] In the above embodiment, the first access point device schedules the R-TWT scheduling requested by the site device according to the second R-TWT scheduling information, so as to avoid the service time overlap between the R-TWT scheduling requested by the site device and the second R-TWT scheduling, thereby interfering with the communication of the site device, causing a decline in communication quality and waste of communication resources, and realizing reasonable optimization of communication resource allocation.
[0081] In combination with some embodiments of the first aspect, in some embodiments, if the service time of the first R-TWT schedule overlaps with the service time of the second R-TWT schedule, and the signal strength identified by the second identification field is not lower than the preset signal strength threshold, the third wireless frame identifies at least one of the following:
[0082] When the first Broadcast TWT Parameter Set field is set to the second parameter value or the third parameter value, the third radio frame identifies that the first access point device suggests or recommends that the site device join a third R-TWT schedule; and the service time of the third R-TWT schedule does not overlap with the service time of the second R-TWT schedule;
[0083] When the first Broadcast TWT Parameter Set field is set to one of the first parameter value, the second parameter value and the third parameter value, the third identification information indicates that the access point device refuses the site device to join the first R-TWT scheduling.
[0084] In the above embodiment, the first access point device schedules the R-TWT scheduling requested by the site device according to the second R-TWT scheduling information, so as to avoid the service time overlap between the R-TWT scheduling requested by the site device and the second R-TWT scheduling, thereby interfering with the communication of the site device, causing a decline in communication quality and waste of communication resources, and realizing reasonable optimization of communication resource allocation.
[0085] In combination with some embodiments of the first aspect, in some embodiments, if the service time scheduled by the first R-TWT does not overlap with the service time scheduled by the second R-TWT, the third radio frame identifies at least one of the following:
[0086] When the first Broadcast TWT Parameter Set field is set to one of a first parameter value, a second parameter value, and a third parameter value, the third radio frame identifies that the first access point device accepts the site device from joining the first R-TWT scheduling;
[0087] When the first Broadcast TWT Parameter Set field is set to the second parameter value or the third parameter value, the third radio frame indicates that the first access point device suggests or recommends that the site device join a third R-TWT schedule; and parameters of the third R-TWT schedule are not completely consistent with parameters of the first R-TWT schedule;
[0088] When the first Broadcast TWT Parameter Set field is set to one of the first parameter value, the second parameter value and the third parameter value, the third wireless frame identifies that the first access point device refuses the site device to join the first R-TWT scheduling.
[0089] In the above embodiment, the first access point device schedules the R-TWT scheduling requested by the site device according to the second R-TWT scheduling information, so as to avoid the service time overlap between the R-TWT scheduling requested by the site device and the second R-TWT scheduling, thereby interfering with the communication of the site device, causing a decline in communication quality and waste of communication resources, and realizing reasonable optimization of communication resource allocation.
[0090] In combination with some embodiments of the first aspect, in some embodiments, the third wireless frame is one or more of an Association Response frame, a Reassociation Response frame, and a TWT Setup frame.
[0091] In the above embodiment, the third radio frame type helps to achieve network discovery, connection, management, and optimization, thereby enhancing the stability of the Wi-Fi network.
[0092] In a second aspect, an embodiment of the present disclosure provides a communication method, the method comprising:
[0093] The site device receives a first wireless frame sent by a first access point device; the first wireless frame includes first identification information, and the first identification information identifies a set of BSSIDs where all neighboring access point devices are located; wherein the neighboring access point device is a neighboring access point device that can be monitored by the first access point device.
[0094] In conjunction with some embodiments of the second aspect, in some embodiments, the first radio frame includes a first element, and the first identification information is carried in the first element;
[0095] The first element includes at least one of the following:
[0096] A first field, identifying the first element, is used to identify the first element as a neighbor access point identifier set element;
[0097] The second field identifies the byte length of the first element;
[0098] The third field includes one or more of the first identification information.
[0099] In conjunction with some embodiments of the second aspect, in some embodiments, the method further includes at least one of the following:
[0100] The first field includes an Element ID field;
[0101] The second field includes a Length field;
[0102] The third field includes an OBSS BSSID Set field.
[0103] In combination with some embodiments of the second aspect, in some embodiments, the first wireless frame includes at least one of a Beacon frame, a Probe Response frame, an Association Response frame, and a Reassociation Response frame.
[0104] In conjunction with some embodiments of the second aspect, in some embodiments, the method further includes:
[0105] The site device determines a second radio frame; wherein the second radio frame identifies a request by the site device to join a first R-TWT schedule of the first access point device;
[0106] The second radio frame includes second identification information, where the second identification information identifies second R-TWT scheduling information broadcast by the second access point device;
[0107] The second access point device does not include a neighboring access point device identified by the first identification information in the first wireless frame, and the site device monitors that the signal strength of the second access point device is higher than a preset signal strength threshold;
[0108] The second radio frame is sent.
[0109] In combination with some embodiments of the second aspect, in some embodiments, the second identification information is carried in a TWT element of the second radio frame;
[0110] The TWT element includes: a first Broadcast TWT Parameter Set field and a second Broadcast TWT Parameter Set field;
[0111] Among them, the first Broadcast TWT Parameter Set field identifies the first R-TWT scheduling; the second Broadcast TWT Parameter Set field identifies the second R-TWT scheduling.
[0112] In conjunction with some embodiments of the second aspect, in some embodiments, the second Broadcast TWT Parameter Set field includes a first identification field and a second identification field;
[0113] The first identification field identifies a BSS where the second access point device is located;
[0114] The second identification field identifies the signal strength of the second access point device monitored by the site device.
[0115] In combination with some embodiments of the second aspect, in some embodiments, the second Broadcast TWT Parameter Set field also includes a Request Type subfield; the TWT Request field and TWT Setup Command field of the Request Type subfield are set to reserved bits.
[0116] In combination with some embodiments of the second aspect, in some embodiments, the second wireless frame includes at least one of an Association Request frame, a Reassociation Request frame, and a TWT Setup frame.
[0117] In conjunction with some embodiments of the second aspect, in some embodiments, the method further includes:
[0118] The site device receives a third wireless frame sent by the first access point device; the third wireless frame includes third identification information, and the third identification information identifies whether the first access point device accepts or rejects the site device from joining the first R-TWT scheduling.
[0119] In combination with some embodiments of the second aspect, in some embodiments, if the service time scheduled by the first R-TWT overlaps with the service time scheduled by the second R-TWT, and the signal strength identified by the second identification field is lower than the preset signal strength threshold, the third wireless frame identifies at least one of the following:
[0120] When the first Broadcast TWT Parameter Set field is set to one of a first parameter value, a second parameter value, and a third parameter value, the third radio frame identifies that the first access point device accepts the site device from joining the first R-TWT scheduling;
[0121] When the first Broadcast TWT Parameter Set field is set to the second parameter value or the third parameter value, the third radio frame indicates that the first access point device suggests or recommends that the site device join a third R-TWT schedule; and parameters of the third R-TWT schedule are not completely consistent with parameters of the first R-TWT schedule;
[0122] When the first Broadcast TWT Parameter Set field is set to one of the first parameter value, the second parameter value and the third parameter value, the third wireless frame identifies that the first access point device refuses the site device to join the first R-TWT scheduling.
[0123] In combination with some embodiments of the second aspect, in some embodiments, if the service time of the first R-TWT scheduling overlaps with the service time of the second R-TWT scheduling, and the signal strength identified by the second identification field is not lower than the preset signal strength threshold, the third wireless frame identifies at least one of the following:
[0124] When the first Broadcast TWT Parameter Set field is set to the second parameter value or the third parameter value, the third radio frame identifies that the first access point device suggests or recommends that the site device join a third R-TWT schedule; and the service time of the third R-TWT schedule does not overlap with the service time of the second R-TWT schedule;
[0125] When the first Broadcast TWT Parameter Set field is set to one of the first parameter value, the second parameter value and the third parameter value, the third identification information indicates that the access point device refuses the site device to join the first R-TWT scheduling.
[0126] In combination with some embodiments of the second aspect, in some embodiments, if the service time scheduled by the first R-TWT does not overlap with the service time scheduled by the second R-TWT, the third radio frame identifies at least one of the following:
[0127] When the first Broadcast TWT Parameter Set field is set to one of a first parameter value, a second parameter value, and a third parameter value, the third radio frame identifies that the first access point device accepts the site device from joining the first R-TWT scheduling;
[0128] When the first Broadcast TWT Parameter Set field is set to the second parameter value or the third parameter value, the third radio frame indicates that the first access point device suggests or recommends the site device to join a third R-TWT schedule; the parameters of the third R-TWT schedule are not completely consistent with the parameters of the first R-TWT schedule;
[0129] When the first Broadcast TWT Parameter Set field is set to one of the first parameter value, the second parameter value and the third parameter value, the third wireless frame identifies that the first access point device refuses the site device to join the first R-TWT scheduling.
[0130] In combination with some embodiments of the second aspect, in some embodiments, the third wireless frame is one or more of an Association Response frame, a Reassociation Response frame, and a TWT Setup frame.
[0131] In a third aspect, an embodiment of the present disclosure further provides a communication device, which is a first access point device, and the first access point device includes at least one of a determination module and a sending module; wherein the first access point device is used to execute an optional implementation method of the first aspect.
[0132] In a fourth aspect, an embodiment of the present disclosure further provides a communication device, which is a site device and includes: a first receiving module; wherein the above-mentioned site device is used to execute the optional implementation method of the second aspect.
[0133] In a fifth aspect, an embodiment of the present disclosure further provides a communication device, wherein the communication device is a first access point device, including:
[0134] one or more processors;
[0135] The first access point device is used to perform an optional implementation of the first aspect.
[0136] In a sixth aspect, an embodiment of the present disclosure further provides a communication device, wherein the communication device is a site device, including:
[0137] one or more processors;
[0138] The site device is used to execute the optional implementation of the second aspect.
[0139] In the seventh aspect, an embodiment of the present disclosure further provides a communication system, including a first access point device and a site device; wherein the first access point device is configured to perform the optional implementation method described in the first aspect, and the site device is configured as the optional implementation method described in the second aspect.
[0140] In an eighth aspect, an embodiment of the present disclosure further provides a storage medium storing instructions, which, when executed on a communication device, enables the communication device to execute the optional implementation methods described in the first and second aspects.
[0141] In a ninth aspect, an embodiment of the present disclosure proposes a program product. When the program product is executed by a communication device, the communication device executes the method described in the optional implementation of the first and second aspects.
[0142] In a tenth aspect, an embodiment of the present disclosure proposes a computer program, which, when executed on a computer, enables the computer to execute the method described in the optional implementation of the first and second aspects.
[0143] In an eleventh aspect, an embodiment of the present disclosure provides a chip or a chip system, wherein the chip or chip system includes a processing circuit configured to execute the method described in the optional implementation of the first and second aspects above.
[0144] It is understandable that the first access point device, station device, communication system, storage medium, program product, computer program, chip, or chip system described above are all used to perform the methods proposed in the embodiments of the present disclosure. Therefore, the beneficial effects that can be achieved can refer to the beneficial effects of the corresponding methods and will not be repeated here.
[0145] The embodiments of the present disclosure provide a communication method, a communication device, and a communication system. In some embodiments, the terms communication method, signal transmission method, wireless frame transmission method, etc. can be used interchangeably, and the terms information processing system, communication system, etc. can be used interchangeably.
[0146] The embodiments of the present disclosure are not exhaustive and are merely illustrative of some embodiments, and are not intended to be a specific limitation on the scope of protection of the present disclosure. In the absence of contradiction, each step in a certain embodiment can be implemented as an independent embodiment, and the steps can be arbitrarily combined. For example, a solution after removing some steps in a certain embodiment can also be implemented as an independent embodiment, and the order of the steps in a certain embodiment can be arbitrarily exchanged. In addition, the optional implementation methods in a certain embodiment can be arbitrarily combined; in addition, the embodiments can be arbitrarily combined. For example, some or all steps of different embodiments can be arbitrarily combined, and a certain embodiment can be arbitrarily combined with the optional implementation methods of other embodiments.
[0147] In each embodiment of the present disclosure, unless otherwise specified or provided for by logic, the terms and / or descriptions between the embodiments are consistent and can be referenced by each other. The technical features in different embodiments can be combined to form a new embodiment based on their inherent logical relationships.
[0148] The terms used in the embodiments of the present disclosure are only for the purpose of describing specific embodiments and are not intended to limit the present disclosure.
[0149] In the embodiments of the present disclosure, “plurality” refers to two or more.
[0150] In some embodiments, the terms "at least one," "one or more," "a plurality of," "multiple," etc. may be used interchangeably.
[0151] In some embodiments, descriptions such as "at least one of A and B," "A and / or B," "A in one case, B in another case," or "in response to one case A, in response to another case B" may include the following technical solutions depending on the situation: in some embodiments, A (A is executed independently of B); in some embodiments, B (B is executed independently of A); in some embodiments, execution is selected from A and B (A and B are selectively executed); and in some embodiments, A and B (both A and B are executed). The above is also applicable when there are more branches such as A, B, and C.
[0152] In some embodiments, "A or B" and other descriptions may include the following technical solutions depending on the situation: in some embodiments, A (A is executed independently of B); in some embodiments, B (B is executed independently of A); in some embodiments, execution is selected from A and B (A and B are selectively executed). The above is also applicable when there are more branches such as A, B, C, etc.
[0153] The prefixes such as "first" and "second" in the embodiments of the present disclosure are only used to distinguish different description objects and do not constitute any restriction on the position, order, priority, quantity or content of the description objects. For the statement of the description object, please refer to the description in the context of the claims or embodiments, and no unnecessary restriction should be constituted due to the use of prefixes. For example, if the description object is a "field", the ordinal number before the "field" in the "first field" and the "second field" does not limit the position or order between the "fields". "First" and "second" do not limit whether the "fields" they modify are in the same message, nor do they limit the order of the "first field" and the "second field". For another example, if the description object is a "level", the ordinal number before the "level" in the "first level" and the "second level" does not limit the priority between the "levels". For another example, the number of description objects is not limited by the ordinal number and can be one or more. Taking "first device" as an example, the number of "devices" can be one or more. In addition, the objects modified by different prefixes can be the same or different. For example, if the description object is "device", then the "first device" and the "second device" can be the same device or different devices, and their types can be the same or different; for another example, if the description object is "information", then the "first information" and the "second information" can be the same information or different information, and their contents can be the same or different.
[0154] In some embodiments, “including A,” “comprising A,” “used to indicate A,” and “carrying A” can be interpreted as directly carrying A or indirectly indicating A.
[0155] In some embodiments, terms such as "in response to...", "in response to determining...", "in the case of...", "at the time of...", "when...", "if...", "if...", etc. can be used interchangeably.
[0156] In some embodiments, terms such as "greater than", "greater than or equal to", "not less than", "more than", "more than or equal to", "not less than", "higher than", "higher than or equal to", "not less than", and "above" can be replaced with each other, and terms such as "less than", "less than or equal to", "not greater than", "less than", "less than or equal to", "not more than", "lower than", "lower than or equal to", "not higher than", and "below" can be replaced with each other.
[0157] In some embodiments, devices and equipment can be interpreted as physical or virtual, and their names are not limited to the names recorded in the embodiments. In some cases, they can also be understood as "equipment", "device", "circuit", "network element", "node", "function", "unit", "section", "system", "network", "chip", "chip system", "entity", "subject", etc.
[0158] In some embodiments, obtaining data, information, etc. may comply with the laws and regulations of the country where the data is obtained.
[0159] In some embodiments, data, information, etc. may be obtained with the user's consent.
[0160] In addition, each element, each row, or each column in the table of the embodiment of the present disclosure can be implemented as an independent embodiment, and the combination of any elements, any rows, and any columns can also be implemented as an independent embodiment.
[0161] FIG1 is a schematic diagram showing the architecture of a communication system according to an embodiment of the present disclosure.
[0162] As shown in Figure 1, a communication system 100 includes a first access point (AP) 101, a station (STA) 102, a neighboring AP 103, and a second AP 104. Neighboring APs 103 are neighbors of first AP 101, and there may be one or more of them. Second APs 104 are APs monitored by station 102, and there may also be one or more of them, but this is not limited in the present embodiment.
[0163] In some embodiments, the access point device can be an access point for a mobile terminal to enter a wired network. The AP is equivalent to a bridge connecting a wired network and a wireless network. Its main function is to connect various wireless network clients together and then connect the wireless network to the Ethernet. Specifically, the AP can be a terminal device or a network device with a wireless fidelity chip. Optionally, the AP can support multiple WLAN standards such as 802.11ax, 802.11be, 802.11ac, 802.11n, 802.11g, 802.11b and 802.11a, 802.11bf, 802.11bn, and support the next generation 802.11 protocol, but is not limited to this.
[0164] In some embodiments, the station device 102 includes, for example, a wireless communication chip, a wireless sensor, or a wireless communication terminal that supports Wi-Fi communication. Optionally, the wireless communication terminal is, for example, at least one of a mobile phone, a wearable device, an Internet of Things device that supports Wi-Fi communication, a car with Wi-Fi communication, a smart car, a tablet computer, a computer with wireless transceiver function, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal device used in industrial control, a wireless terminal device used in self-driving, a wireless terminal device used in remote medical surgery, a wireless terminal device used in a smart grid, a wireless terminal device used in transportation safety, a wireless terminal device used in a smart city, and a wireless terminal device used in a smart home, but is not limited thereto.
[0165] Specifically, the station device 102 may be a terminal device or a network device equipped with a Wireless Fidelity (Wi-Fi) chip. Optionally, the station device 102 may support multiple WLAN standards, such as 802.11ax, 802.11be, 802.11ac, 802.11n, 802.11g, 802.11b, 802.11a, 802.11bf, and 802.11bn, as well as the next generation 802.11 protocol, but is not limited thereto.
[0166] Optionally, in an embodiment of the present disclosure, the AP and STA may be devices supporting multiple connections, for example, they may be represented as a multi-connection access point device (AP MLD) and a multi-connection site device (Non-Access Point Multi-Link Device, Non-AP MLD), respectively; the AP MLD may represent an access point supporting multi-connection communication functions, and the non-AP MLD may represent a site supporting multi-connection communication functions.
[0167] It can be understood that the communication system described in the embodiment of the present disclosure is for the purpose of more clearly illustrating the technical solution of the embodiment of the present disclosure, and does not constitute a limitation on the technical solution proposed in the embodiment of the present disclosure. Ordinary technicians in this field can know that with the evolution of the system architecture and the emergence of new business scenarios, the technical solution proposed in the embodiment of the present disclosure is also applicable to similar technical problems.
[0168] The following embodiments of the present disclosure may be applied to the communication system 100 shown in FIG1 , or a portion thereof, but are not limited thereto. The entities shown in FIG1 are illustrative only. The communication system may include all or part of the entities shown in FIG1 , or may include other entities outside of FIG1 . The number and form of the entities are arbitrary, and the entities may be physical or virtual. The connection relationships between the entities are illustrative only. The entities may be connected or disconnected, and the connection may be in any manner, including direct or indirect, wired or wireless.
[0169] The various embodiments of the present disclosure can be applied to wireless local area networks (WLANs), such as those using the 802.11 series of protocols. In a WLAN, a Basic Service Set (BSS) is a fundamental component of a WLAN. A BSS network consists of station devices with some association within a specific coverage area. One scenario of association is that stations communicate directly with each other in an ad hoc network, which is called an Independent Basic Service Set (IBSS). Another more common scenario is that in a BSS network, there is only one central station dedicated to managing the BSS, called an access point, and all other STAs in the network are associated with it. Other stations in the BSS network that are not the central station are called terminals, also called non-AP STAs. Terminals and non-AP STAs are collectively referred to as STAs. When describing STAs, there is no need to distinguish between APs and non-AP STAs. In the same BSS network, due to distance, transmission power, and other factors, a STA cannot detect other STAs that are farther away from it, and the two STAs are each other's hidden nodes.
[0170] FIG2 is an interactive diagram of a communication method according to an embodiment of the present disclosure. As shown in FIG2 , the method includes:
[0171] In step 201, the first access point device 101 determines a first radio frame; the first radio frame includes first identification information, and the first identification information identifies a basic service set identifier (BSSID) of a neighboring access point device; wherein the neighboring access point device is a neighboring access point device that can be monitored by the first access point device 101.
[0172] In a wireless local area network, a Basic Service Set (BSS) can be composed of an AP and one or more STAs communicating with the AP. A Basic Service Set can be connected to a Distribution System (DS) through its AP, and then connected to another Basic Service Set to form an Extended Service Set (ESS). As a first example, referring to Figure 3, AP1 and STA1-1, STA1-2, STA1-3, and STA2-1 form BSS1, and AP2 and STA2-1, STA1-1, STA2-2, and STA2-3 form BSS2; if the coverage of two or more BSSs overlap, an Overlapping Basic Service Set (BSS, OBSS) is formed. As shown in Figure 3, BSS1 and BSS2 overlap to form an OBSS.
[0173] With the diversification of communication service needs and the development trend of high-frequency bands, more and more wireless local area networks are deployed in dense environments composed of multiple OBSSs. The high-density deployment of WLAN will inevitably lead to regional overlap of adjacent BSSs. When the R-TWT member STA is located in the OBSS scenario, during the restricted target wake time service period (Restricted Target Wake Time Service Period, R-TWT SP), other APs that form the OBSS scenario will interfere with the low-latency service transmission within the R-TWT SP. For example, two access point devices AP1 and AP2 that are far away from each other cannot monitor the management frames such as Beacon frames sent by each other, and thus are not clear about the R-TWT scheduling within each other's BSS; in the embodiment of the present disclosure, the first access point device (hereinafter referred to as AP1) carries the first identification information in the first wireless frame, and the first identification information identifies: the BSSID of the BSS where the neighboring access point device (hereinafter referred to as AP0) is located. Optionally, the first identification information may be a set of BSSIDs including all or some neighboring access point devices. For example, the first identification information includes a set of BSSIDs, which includes the BSSIDs of all or some neighboring access point devices.
[0174] Specifically, AP0 may interfere with the low-latency service transmission within the R-TWT scheduling of AP1. For example, a certain R-TWT scheduling member STA of AP1 is located in the OBSS scenario formed by AP1 and AP0, and the service transmission within the BSS to which AP0 belongs may interfere with the low-latency service transmitted by the STA within the R_TWT SP of AP1. In particular, when there is overlap in the R-TWT scheduling service time within the two BSSs, the low-latency services within the overlapping service time may interfere with each other, resulting in poor low-latency service transmission quality and low transmission efficiency. In the embodiment of the present disclosure, AP1 sends the BSS identifier of the neighboring AP to which it can monitor to the STA through the first wireless frame, so that AP1 and the STA can subsequently avoid OBSS transmission interference based on the BSS identifier to which the neighboring AP belongs.
[0175] It can be understood that in the embodiment of the present disclosure, AP0 is an access point device that can be monitored by AP1, for example, AP1 can monitor the management frame (such as Beacon frame) sent by AP0; or, AP0 is a device that forms an OBSS scenario with AP1, and the embodiment of the present disclosure does not limit this.
[0176] Step 202: The first access point device 101 sends the first radio frame.
[0177] In the embodiment of the present disclosure, AP1 sends a first radio frame to a station device in an OBSS scenario, where the station device is, for example, STA1 - 1 in FIG3 .
[0178] In some embodiments, the first radio frame carries first identification information, which identifies the basic service set (BSS) in which AP0 is located. AP0 is a neighboring access point device that AP1 can monitor. As shown in Figure 3, if AP1 and AP2 are within communication range, the first identification information identifies the BSS in which AP2 is located, namely, BSS2. If AP1 and AP2 are not within communication range, the first identification information does not identify the BSS in which AP2 is located.
[0179] Step 203 : The site device 102 receives a first radio frame sent by the first access point device 101 .
[0180] In this embodiment of the present disclosure, a station device in an OBSS scenario receives a first radio frame sent by associated AP1. The first radio frame carries first identification information that identifies the basic service set (BSS) in which AP0 resides. Based on the first radio frame, the station device can determine the BSS in which AP0 resides, which AP1 can monitor.
[0181] In the embodiment of the present disclosure, AP1 determines a first radio frame, carries first identification information in the first radio frame, and identifies the BSS where AP0 is located through the first identification information. AP0 is a neighboring access point device that can be monitored by AP1.
[0182] In some embodiments, the first radio frame includes a first element, and the first identification information is carried in the first element. The first element includes but is not limited to at least one of the following:
[0183] An Element ID field, which identifies the type of the first element as a BSSID set element for identifying the BSS where the neighboring access point device is located;
[0184] The Length field indicates the length in bytes of the first element.
[0185] The Overlapping Basic Service Set Identifier (OBSS) BSSID Set field includes one or more of the first identification information, for example, one or more BSSID fields, wherein each BSSID field identifies the BSS identifier of each neighboring access point device that can be monitored by the AP1.
[0186] The first element may be an OBSS BSSID Set element, and the structure of the OBSS BSSID Set element is shown in Table 1 below.
[0187] Table 1:
[0188] In some embodiments, the first wireless frame includes at least one of a beacon frame, a probe response frame, an association response frame, and a reassociation response frame.
[0189] Step 204: The site device 102 determines a second radio frame; wherein the second radio frame indicates that the site device 102 requests to join the first restricted target wake-up time R-TWT scheduling of the first access point device 101;
[0190] The second radio frame includes second identification information, where the second identification information identifies second R-TWT scheduling information broadcast by a second access point device (hereinafter referred to as AP2);
[0191] Among them, the AP2 does not include the AP0, and the site device monitors that the signal strength of the AP2 is higher than the preset signal strength threshold; it can be understood that the preset signal strength threshold can be set in advance, for example, a device that is higher than the preset signal strength threshold may interfere with the low-latency service transmission of AP1.
[0192] Normally, in a wireless local area network, a site device may not be able to obtain the R-TWT scheduling information in other BSSs that its associated access point device can monitor. In the embodiment of the present disclosure, AP1 sends the BSS identifier of the neighboring AP that it can monitor to the site device through the first wireless frame; when the site device monitors the R-TWT scheduling of all APs, it reports the second R-TWT scheduling information of the device that does not belong to the AP0 and can interfere with the low-latency service transmission of AP1 in the R-TWT scheduling that it can monitor to AP1, so that AP1 can coordinate the R-TWT scheduling requested by the site device to join. If the site device reports all the R-TWT scheduling in all other BSSs that it monitors to its associated access point device, it will not only bring additional signaling overhead, but also increase the power consumption overhead of the site device. Therefore, in the embodiment of the present disclosure, carrying the second R-TWT scheduling information in the second wireless frame can effectively reduce the signaling overhead, realize the interaction and coordination of R-TWT scheduling information between multiple access points, and improve the efficient and reliable transmission of low-latency services.
[0193] Specifically, when the neighboring access points monitored by AP1 do not include AP2, an OBSS scenario may exist, that is, multiple different wireless local area network BSSs operate on the same channel, that is, the OBSS formed by the BSS to which AP1 belongs and the BSS to which AP2 belongs. In this case, AP1 may not be able to know the existence of AP2, and the signals of the two are not monitored by each other. However, when the site device detects the signal of AP2, and the signal strength is higher than the preset signal strength threshold, the signal of AP2 has a certain strength near the site device and may affect the communication of the site device. In the embodiment of the present disclosure, the second wireless frame also includes second identification information, and the second identification information identifies: the second R-TWT scheduling information broadcast by AP2, so that AP1 can schedule the R-TWT scheduling requested by the site device to join according to the second R-TWT scheduling information, avoid the overlap of the service time of the R-TWT scheduling requested by the site device and the second R-TWT scheduling, interfere with the communication of the site device, cause the decline in communication quality and waste of communication resources, and realize the reasonable optimization of communication resource allocation.
[0194] For example, in Figure 3, the associated access point (AP1) of the station device STA1-1 is AP1. When the AP0 monitored by AP1 does not include AP2, and the signal strength of AP2 monitored by STA1-1 is greater than a preset threshold, STA1-1 carries the second identification information in the second wireless frame. The second identification information identifies: R-TWT scheduling information broadcast by AP2. It can be seen that the station device in the OBSS scenario can reduce additional signaling overhead and station energy overhead by reporting AP2, which is not monitored by the associated access point device and has a signal strength greater than a preset threshold, to its associated access point.
[0195] In some embodiments, the second identification information is carried in a target wake time (TWT) element of the second radio frame;
[0196] The TWT element includes: a first broadcast target wake-up time parameter set Broadcast TWT Parameter Set field and a second Broadcast TWT Parameter Set field;
[0197] Among them, the first Broadcast TWT Parameter Set field identifies the first R-TWT scheduling; the second Broadcast TWT Parameter Set field identifies the second R-TWT scheduling.
[0198] In the disclosed embodiment, the second identification information is carried in the TWT element, so that AP1 can coordinate the R-TWT scheduling between multiple access point devices based on the second identification information. Such flexibility can make the network better adapt to different scenarios and needs and improve resource utilization.
[0199] The second Broadcast TWT Parameter Set field includes a first identification field and a second identification field;
[0200] The first identification field identifies the BSS where the AP2 is located;
[0201] The second identification field identifies the signal strength of the AP2.
[0202] Among them, the format of the second Broadcast TWT Parameter Set field is shown in Table 2 below.
[0203] Table 2:
[0204] In the disclosed embodiment, the first identification field identifies the BSS where AP2 is located, allowing AP1 to accurately identify the existence of other surrounding BSSs. This helps to establish an accurate network topology map and provides necessary information for communication and resource management between devices. The second identification field identifies the signal strength of AP2, which allows AP1 to more accurately evaluate the signal strength differences between different access point devices, helps to achieve interaction and coordination of R-TWT scheduling between multiple access point devices, and improves the transmission efficiency of low-latency services.
[0205] In some embodiments, the second Broadcast TWT Parameter Set field further includes a request type Request Type subfield; the target wake-up time request TWT Request field and the target wake-up time setting command TWT Setup Command field of the Request Type subfield are set to reserved bits.
[0206] In the embodiment of the present disclosure, the solution of setting the target wake-up time request field and the target wake-up time setting command field as reserved bits helps to improve the flexibility, consistency and security of the protocol, while simplifying the implementation and maintenance process of the protocol.
[0207] In some embodiments, the second wireless frame includes at least one of an association request frame, a reassociation request frame, and a target wake time setting TWT Setup frame.
[0208] Step 205: The site device 102 sends the second radio frame.
[0209] The second wireless frame indicates that the site device requests to join the first R-TWT scheduling of AP1. The second wireless frame carries second identification information, and the second identification information identifies: the second R-TWT scheduling information broadcast by AP2. The AP2 does not include the neighboring access point device, and the site device detects that the signal strength of AP2 is higher than a preset signal strength threshold.
[0210] Step 206 : The first access point device 101 receives the second wireless frame sent by the station device 102 .
[0211] In the disclosed embodiment, AP1 receives a second radio frame transmitted by a site device. The second radio frame identifies a request by the site device to join a first R-TWT schedule of AP1, as well as information about a second R-TWT schedule broadcast by AP2. AP1 coordinates the R-TWT schedule based on the second radio frame, for example, rejecting the site device's request to join an R-TWT schedule whose service time overlaps with the second R-TWT schedule.
[0212] Step 207: The first access point device 101 determines a third wireless frame, where the third wireless frame includes third identification information. The third identification information identifies whether the first access point device 101 accepts or rejects the site device from joining the first R-TWT scheduling.
[0213] After receiving the second radio frame, the first access point device determines a third radio frame, wherein the third radio frame carries third identification information, and the third identification information indicates whether the first access point device accepts or rejects the site device from joining the first R-TWT scheduling.
[0214] In some embodiments, if the service time of the first R-TWT schedule overlaps with the service time of the second R-TWT schedule, and the signal strength identified by the second identification field is lower than the preset signal strength threshold, the third wireless frame identifies at least one of the following situations 1 to 2:
[0215] Case 1: When the first Broadcast TWT Parameter Set field is set to one of the first parameter value, the second parameter value, and the third parameter value, the third wireless frame indicates that the AP1 accepts the site device to join the first R-TWT scheduling. For example, the first parameter value is set to "00", the second parameter value is set to "01", and the third parameter value is set to "10"; if the first Broadcast TWT Parameter Set field is set to the first parameter value, then the third wireless frame indicates that the AP1 accepts the site device to join the first R-TWT scheduling. When the first Broadcast TWT Parameter Set field is set to the second parameter value or the third parameter value, the third wireless frame indicates that the AP1 suggests or recommends the site device to join the third R-TWT scheduling; the parameters of the third R-TWT scheduling are not completely consistent with the parameters of the first R-TWT scheduling. For example, the first parameter value is set to "00", the second parameter value is set to "01", and the third parameter value is set to "10"; the first Broadcast TWT Parameter Set field is set to the second parameter value, and the third wireless frame identifier AP1 suggests or recommends that the site device join the third R-TWT scheduling, where the parameters of the third R-TWT scheduling are slightly different from the parameters of the first R-TWT scheduling.
[0216] In case 2, when the first Broadcast TWT Parameter Set field is set to one of the first parameter value, the second parameter value, and the third parameter value, the third wireless frame identifies that the AP1 refuses the site device to join the first R-TWT scheduling. For example, the first parameter value is set to "00", the second parameter value is set to "01", and the third parameter value is set to "10"; if the first Broadcast TWT Parameter Set field is set to the third parameter value, then the third wireless frame identifies that the AP2 refuses the site device to join the first R-TWT scheduling.
[0217] It can be seen that AP1 can dynamically choose whether to allow the site device to join the first R-TWT scheduling, or recommend the site device to join the third R-TWT scheduling based on the current signal strength and scheduling situation, so as to better realize R-TWT scheduling coordination between multiple access points and improve the transmission efficiency of low-latency services.
[0218] It can be understood that if the first Broadcast TWT Parameter Set field is set to one of the first parameter value, the second parameter value or the third parameter value, then the third wireless frame identifier AP1 accepts or rejects the site device to join the first R-TWT scheduling, depending on other conditions or network status, and no specific restrictions are made here.
[0219] In some embodiments, if the service time of the first R-TWT schedule overlaps with the service time of the second R-TWT schedule, and the signal strength identified by the second identification field is not lower than the preset signal strength threshold, the third radio frame identifies at least one of the following situations 3 to 4:
[0220] Case three, when the first Broadcast TWT Parameter Set field is set to the second parameter value or the third parameter value, the third wireless frame identifier AP1 suggests or recommends the site device to join the third R-TWT scheduling; the service time of the third R-TWT scheduling does not overlap with the service time of the second R-TWT scheduling. For example, the second parameter value is set to "01" and the third parameter value is set to "10"; assuming that the first Broadcast TWT Parameter Set field is set to the second parameter value or the third parameter value, and the signal strength identified by the second identification field is not lower than the preset signal strength threshold. At this time, the third wireless frame will suggest or recommend the site device to join the third R-TWT scheduling, and the service time of the third R-TWT scheduling does not overlap with the service time of the second R-TWT scheduling.
[0221] Case 4: When the first Broadcast TWT Parameter Set field is set to one of the first parameter value, the second parameter value, and the third parameter value, the third identification information indicates that the access point device refuses the site device to join the first R-TWT scheduling. For example, the first parameter value is set to "00", the second parameter value is set to "01", and the third parameter value is set to "10"; assuming that the first Broadcast TWT Parameter Set field is set to the first parameter value, and the signal strength identified by the second identification field is not lower than the preset signal strength threshold. At this time, the third wireless frame identifier AP1 refuses the site device to join the first R-TWT scheduling.
[0222] The disclosed embodiments provide a mechanism for suggesting or refusing to join a specific R-TWT schedule for different situations, which helps coordinate R-TWT scheduling based on information reported by OBSS site devices. In addition, by suggesting or recommending that site devices join a third R-TWT schedule, the service time of the R-TWT schedule can be dynamically scheduled to avoid overlapping R-TWT schedule service times within two BSSs, which can lead to poor low-latency service transmission quality and low transmission efficiency.
[0223] In some embodiments, if the service time scheduled by the first R-TWT does not overlap with the service time scheduled by the second R-TWT, the third radio frame identifies at least one of the following cases 5 to 6:
[0224] Case 5: When the first Broadcast TWT Parameter Set field is set to one of the first parameter value, the second parameter value, and the third parameter value, the third wireless frame indicates that the AP1 accepts the site device to join the first R-TWT scheduling. For example, the first parameter value is set to "00", the second parameter value is set to "01", and the third parameter value is set to "10"; if the first Broadcast TWT Parameter Set field is set to the first parameter value, then the third wireless frame indicates that the AP1 accepts the site device to join the first R-TWT scheduling.
[0225] Case six: when the first Broadcast TWT Parameter Set field is set to the second parameter value or the third parameter value, the third wireless frame identifier AP1 suggests or recommends the site device to join the third R-TWT scheduling; the parameters of the third R-TWT scheduling are not completely consistent with the parameters of the first R-TWT scheduling. For example, the second parameter value is set to "01" and the third parameter value is set to "10"; the first Broadcast TWT Parameter Set field is set to the second parameter value, and the third wireless frame identifier AP1 suggests or recommends the site device to join the third R-TWT scheduling, wherein the parameters of the third R-TWT scheduling are slightly different from the parameters of the first R-TWT scheduling.
[0226] When the first Broadcast TWT Parameter Set field is set to one of the first parameter value, the second parameter value, and the third parameter value, the third wireless frame indicates that the AP1 refuses the site device to join the first R-TWT scheduling. For example, the first parameter value is set to "00", the second parameter value is set to "01", and the third parameter value is set to "10"; if the first Broadcast TWT Parameter Set field is set to the third parameter value, then the third wireless frame indicates that the AP1 refuses the site device to join the first R-TWT scheduling.
[0227] In some embodiments, the third wireless frame is one or more of an Association Response frame, a Reassociation Response frame, and a TWT Setup frame.
[0228] The communication method involved in the embodiments of the present disclosure may include at least one of the aforementioned steps and embodiments. For example, step 201 can be implemented as an independent embodiment, step 202 can be implemented as an independent embodiment, step 204 can be implemented as an independent embodiment, step 205 can be implemented as an independent embodiment, and step 207 can be implemented as an independent embodiment; the combination of step 201 and step 202 can be implemented as an independent embodiment, the combination of step 202 and step 203 can be implemented as an independent embodiment, the combination of step 204 and step 205 can be implemented as an independent embodiment, the combination of step 205 and step 206 can be implemented as an independent embodiment, and the combination of step 206 and step 207 can be implemented as an independent embodiment, but the present invention is not limited thereto.
[0229] In some embodiments, reference may be made to other optional implementations described before or after the description corresponding to FIG. 2 .
[0230] Referring to FIG4 , as an optional implementation of the embodiment of the present disclosure, the aforementioned communication method further includes:
[0231] When AP1 broadcasts the R-TWT scheduling to the site device, it also includes the BSS identification information of other R-TWT schedulings that it can monitor. When the site device located in the OBSS scenario makes an R-TWT scheduling establishment request, it determines whether it needs to report the R-TWT scheduling information it monitors to AP1 based on the broadcast information of the associated access point device and the signal strength of other BSSs it monitors. The AP1 coordinates the R-TWT scheduling based on the information reported by the OBSS site device. The embodiment of the present disclosure can realize the interaction of R-TWT scheduling between multiple access points. On the one hand, it can avoid repeated information transmission, reduce signaling overhead, and improve transmission efficiency; on the other hand, it can realize R-TWT scheduling coordination between multiple access points, reduce interference in low-latency service transmission in the OBSS scenario, and improve the transmission efficiency and quality of low-latency services.
[0232] Specifically, as shown in FIG4 , the method includes:
[0233] Step 401: AP1 sends a first radio frame including first identification information, where the first identification information identifies a list of BSS identifiers of BSSs where AP0 is located and which can be monitored by the AP1.
[0234] For example, the first radio frame includes a first element, and the first element includes but is not limited to:
[0235] An Element ID field, identifying the first element as an element of a BSSID set where the AP0 that forms an OBSS scenario with the access point device is located;
[0236] The Length field indicates the length of the first element in bytes.
[0237] The OBSS BSSID Set field includes one or more BSSID fields, wherein each BSSID field is the BSS identifier of the AP0 that can be monitored by the access point.
[0238] Step 402: Under a first condition, the site device sends a second radio frame to its associated AP1 to request to join a first R-TWT schedule.
[0239] The second wireless frame includes second identification information, and the second identification information identifies: the second R-TWT scheduling information broadcast by AP2 received by the site device.
[0240] The first condition includes, but is not limited to: the BSSID of the AP2 is not included in the OBSS BSSID Set included in the first wireless frame, and the signal strength of the AP2 monitored by the site device is greater than a threshold. The threshold is a fixed parameter and is not specifically limited.
[0241] The second wireless frame includes a TWT element, and the TWT includes two types of Broadcast TWT Parameter Set fields. The first type of Broadcast TWT Parameter Set field is used to carry the first R-TWT scheduling information that the site device requests to join; the second type of Broadcast TWT Parameter Set field is used to carry the second R-TWT scheduling information broadcast by the AP2 monitored by the site device.
[0242] The second identification information is included in the second type Broadcast TWT Parameter Set field. The second type Broadcast TWT Parameter Set includes but is not limited to:
[0243] A first identification field, where the first identification field identifies the BSS identifier where the AP2 is located;
[0244] The second identification field identifies the signal strength sent by AP2 monitored by the site device, for example, a received channel power indicator (RCPI).
[0245] In the Request Type subfield of the second type of Broadcast TWT Parameter Set field, the TWT Request field and the TWT Setup Command field are reserved bits.
[0246] Step 403: After receiving the second wireless frame, AP1 sends a third wireless frame in response.
[0247] Among them, if the first R-TWT scheduling service time overlaps with the second R-TWT scheduling service time, and the signal strength of the second field identifier in the second radio frame is lower than a certain threshold, the third radio frame indicates to perform any one of the following operations:
[0248] When the TWT Setup Command value in the first type Broadcast TWT Parameter Set field is set to one of the first parameter value, the second parameter value, and the third parameter value, accepting the first R-TWT establishment request;
[0249] When the TWT Setup Command value in the first type Broadcast TWT Parameter Set field is set to the second parameter value or the third parameter value, the third TWT parameter is suggested or recommended;
[0250] When the TWT Setup Command value in the first type Broadcast TWT Parameter Set field is set to one of the first parameter value, the second parameter value and the third parameter value, the first R-TWT establishment request is rejected.
[0251] If the signal strength of the second field identifier in the second radio frame is greater than a threshold, the third radio frame instructs to perform any one of the following operations:
[0252] When the TWT Setup Command value in the first type Broadcast TWT Parameter Set field is set to the second parameter value or the third parameter value, a third TWT parameter is suggested or recommended; the service time corresponding to the third TWT parameter does not overlap with the second R-TWT SP;
[0253] When the TWT Setup Command value in the first type Broadcast TWT Parameter Set field is set to one of the first parameter value, the second parameter value and the third parameter value, the first R-TWT establishment request is rejected.
[0254] In some embodiments, if the service time corresponding to the second R-TWT scheduling does not overlap with the service time corresponding to the first R-TWT scheduling, the third radio frame indicates performing any one of the following operations:
[0255] When the TWT Setup Command value in the first type Broadcast TWT Parameter Set field is set to one of the first parameter value, the second parameter value, and the third parameter value, accepting the first R-TWT establishment request;
[0256] When the TWT Setup Command value in the first type Broadcast TWT Parameter Set field is set to the second parameter value or the third parameter value, the third TWT parameter is suggested or recommended;
[0257] When the TWT Setup Command value in the first type Broadcast TWT Parameter Set field is set to one of the first parameter value, the second parameter value and the third parameter value, the first R-TWT establishment request is rejected.
[0258] The disclosed embodiments enable interaction and coordination of R-TWT scheduling between multiple access points. This avoids duplicate information transmission, reducing signaling overhead and energy consumption. Furthermore, it enables R-TWT scheduling coordination between multiple access points, improving the transmission efficiency of low-latency services.
[0259] The communication method involved in the embodiments of the present disclosure may include at least one of the aforementioned steps and embodiments. For example, step 401 may be implemented as an independent embodiment, step 402 may be implemented as an independent embodiment, and step 403 may be implemented as an independent embodiment; the combination of step 401 and step 402 may be implemented as an independent embodiment, and the combination of step 402 and step 403 may be implemented as an independent embodiment, but the present invention is not limited thereto.
[0260] In some embodiments, reference may be made to other optional implementations described before or after the description corresponding to FIG. 4 .
[0261] FIG5 is a flowchart of a communication method according to an embodiment of the present disclosure.
[0262] As shown in FIG5 , the above method may be applied to a first access point device 101, and the above method includes:
[0263] Step 501: A first access point device determines a first radio frame; the first radio frame includes first identification information, and the first identification information identifies a basic service set identifier (BSSID) of a neighboring access point device; wherein the neighboring access point device is a neighboring access point device that can be monitored by the first access point device.
[0264] Step 502: Send the first wireless frame.
[0265] Optionally, in the embodiment of the present disclosure, the first radio frame includes a first element, and the first identification information is carried in the first element;
[0266] The first element includes at least one of the following:
[0267] A first field, identifying the first element, is used to identify the first element as a neighbor access point identifier set element;
[0268] The second field identifies the byte length of the first element;
[0269] The third field includes one or more of the first identification information.
[0270] Optionally, in the embodiment of the present disclosure, the method further includes at least one of the following:
[0271] The first field includes an element ID field;
[0272] The second field includes a length field;
[0273] The third field includes an overlapping basic service set identifier (OBSS BSSID Set) field.
[0274] Optionally, in an embodiment of the present disclosure, the first wireless frame includes at least one of a beacon frame, a probe response frame, an association response frame, and a reassociation response frame.
[0275] Step 503: Receive a second radio frame sent by the site device; wherein the second radio frame indicates that the site device requests to join the first restricted target wake-up time R-TWT scheduling of the first access point device;
[0276] The second radio frame includes second identification information, where the second identification information identifies second R-TWT scheduling information broadcast by the second access point device;
[0277] The second access point device does not include a neighboring access point device identified by the first identification information in the first wireless frame, and the site device monitors that the signal strength of the second access point device is higher than a preset signal strength threshold.
[0278] Optionally, in an embodiment of the present disclosure, the second identification information is carried in a target wake-up time TWT element of the second radio frame;
[0279] The TWT element includes: a first broadcast target wake-up time parameter set Broadcast TWT Parameter Set field and a second Broadcast TWT Parameter Set field;
[0280] Among them, the first Broadcast TWT Parameter Set field identifies the first R-TWT scheduling; the second Broadcast TWT Parameter Set field identifies the second R-TWT scheduling.
[0281] Optionally, in the embodiment of the present disclosure, the second Broadcast TWT Parameter Set field includes a first identification field and a second identification field;
[0282] The first identification field identifies a BSS where the second access point device is located;
[0283] The second identification field identifies the signal strength of the second access point device monitored by the site device.
[0284] Optionally, in an embodiment of the present disclosure, the second Broadcast TWT Parameter Set field also includes a request type Request Type subfield; the target wake-up time request TWT Request field and the target wake-up time setting command TWT Setup Command field of the Request Type subfield are set to reserved bits.
[0285] Optionally, in an embodiment of the present disclosure, the second wireless frame includes at least one of an association request frame, a reassociation request frame, and a target wake time setting TWT Setup frame.
[0286] Step 504: Determine a third wireless frame, where the third wireless frame includes third identification information, and the third identification information identifies whether the first access point device accepts or rejects the site device from joining the first R-TWT scheduling.
[0287] Step 505: Send the third radio frame.
[0288] Optionally, in an embodiment of the present disclosure, if the service time of the first R-TWT schedule overlaps with the service time of the second R-TWT schedule, and the signal strength identified by the second identification field is lower than the preset signal strength threshold, the third wireless frame identifies at least one of the following:
[0289] When the first Broadcast TWT Parameter Set field is set to one of a first parameter value, a second parameter value, and a third parameter value, the third radio frame identifies that the first access point device accepts the site device from joining the first R-TWT scheduling;
[0290] When the first Broadcast TWT Parameter Set field is set to the second parameter value or the third parameter value, the third radio frame indicates that the first access point device suggests or recommends that the site device join a third R-TWT schedule; and parameters of the third R-TWT schedule are not completely consistent with parameters of the first R-TWT schedule;
[0291] When the first Broadcast TWT Parameter Set field is set to one of the first parameter value, the second parameter value and the third parameter value, the third wireless frame identifies that the first access point device refuses the site device to join the first R-TWT scheduling.
[0292] Optionally, in an embodiment of the present disclosure, if the service time of the first R-TWT schedule overlaps with the service time of the second R-TWT schedule, and the signal strength identified by the second identification field is not lower than the preset signal strength threshold, the third wireless frame identifies at least one of the following:
[0293] When the first Broadcast TWT Parameter Set field is set to the second parameter value or the third parameter value, the third radio frame identifies that the first access point device suggests or recommends that the site device join a third R-TWT schedule; and the service time of the third R-TWT schedule does not overlap with the service time of the second R-TWT schedule;
[0294] When the first Broadcast TWT Parameter Set field is set to one of the first parameter value, the second parameter value and the third parameter value, the third identification information indicates that the access point device refuses the site device to join the first R-TWT scheduling.
[0295] Optionally, in an embodiment of the present disclosure, if the service time scheduled by the first R-TWT does not overlap with the service time scheduled by the second R-TWT, the third radio frame identifies at least one of the following:
[0296] When the first Broadcast TWT Parameter Set field is set to one of a first parameter value, a second parameter value, and a third parameter value, the third radio frame identifies that the first access point device accepts the site device from joining the first R-TWT scheduling;
[0297] When the first Broadcast TWT Parameter Set field is set to the second parameter value or the third parameter value, the third radio frame indicates that the first access point device suggests or recommends that the site device join a third R-TWT schedule; and parameters of the third R-TWT schedule are not completely consistent with parameters of the first R-TWT schedule;
[0298] When the first Broadcast TWT Parameter Set field is set to one of the first parameter value, the second parameter value and the third parameter value, the third wireless frame identifies that the first access point device refuses the site device to join the first R-TWT scheduling.
[0299] Optionally, in an embodiment of the present disclosure, the third wireless frame is one or more of an Association Response frame, a Reassociation Response frame, and a TWT Setup frame.
[0300] The communication method involved in the embodiments of the present disclosure may include at least one of the aforementioned steps and embodiments. For example, step 501 can be implemented as an independent embodiment, step 502 can be implemented as an independent embodiment, step 503 can be implemented as an independent embodiment, step 504 can be implemented as an independent embodiment, and step 505 can be implemented as an independent embodiment; the combination of step 501 and step 502 can be implemented as an independent embodiment, the combination of step 502 and step 503 can be implemented as an independent embodiment, the combination of step 503 and step 504 can be implemented as an independent embodiment, and the combination of step 504 and step 505 can be implemented as an independent embodiment, but the present invention is not limited thereto.
[0301] In some embodiments, reference may be made to other optional implementations described before or after the description corresponding to FIG. 5 .
[0302] FIG6 is a second flowchart of a communication method according to an embodiment of the present disclosure.
[0303] As shown in FIG6 , the above method may be applied to the site device 102, and the above method includes:
[0304] In step 601, a site device receives a first wireless frame sent by a first access point device; the first wireless frame includes first identification information, and the first identification information identifies a set of BSSIDs of all neighboring access point devices; wherein the neighboring access point devices are neighboring access point devices that can be monitored by the first access point device.
[0305] Optionally, in the embodiment of the present disclosure, the first radio frame includes a first element, and the first identification information is carried in the first element;
[0306] The first element includes at least one of the following:
[0307] A first field, identifying the first element, is used to identify the first element as a neighbor access point identifier set element;
[0308] The second field identifies the byte length of the first element;
[0309] The third field includes one or more of the first identification information.
[0310] Optionally, in the embodiment of the present disclosure, the method further includes at least one of the following:
[0311] The first field includes an Element ID field;
[0312] The second field includes a Length field;
[0313] The third field includes an OBSS BSSID Set field.
[0314] Optionally, in an embodiment of the present disclosure, the first wireless frame includes at least one of a Beacon frame, a Probe Response frame, an Association Response frame, and a Reassociation Response frame.
[0315] Step 602: The site device determines a second radio frame; wherein the second radio frame indicates that the site device requests to join the first R-TWT schedule of the first access point device;
[0316] The second radio frame includes second identification information, where the second identification information identifies second R-TWT scheduling information broadcast by the second access point device;
[0317] The second access point device does not include a neighboring access point device identified by the first identification information in the first wireless frame, and the site device monitors that the signal strength of the second access point device is higher than a preset signal strength threshold.
[0318] Step 603: Send the second wireless frame.
[0319] Optionally, in the embodiment of the present disclosure, the second identification information is carried in a TWT element of the second radio frame;
[0320] The TWT element includes: a first Broadcast TWT Parameter Set field and a second Broadcast TWT Parameter Set field;
[0321] Among them, the first Broadcast TWT Parameter Set field identifies the first R-TWT scheduling; the second Broadcast TWT Parameter Set field identifies the second R-TWT scheduling.
[0322] Optionally, in the embodiment of the present disclosure, the second Broadcast TWT Parameter Set field includes a first identification field and a second identification field;
[0323] The first identification field identifies a BSS where the second access point device is located;
[0324] The second identification field identifies the signal strength of the second access point device monitored by the site device.
[0325] Optionally, in an embodiment of the present disclosure, the second Broadcast TWT Parameter Set field also includes a Request Type subfield; the TWT Request field and TWT Setup Command field of the Request Type subfield are set as reserved bits.
[0326] Optionally, in an embodiment of the present disclosure, the second wireless frame includes at least one of an Association Request frame, a Reassociation Request frame and a TWT Setup frame.
[0327] Step 604: The site device receives a third wireless frame sent by the first access point device; the third wireless frame includes third identification information, and the third identification information identifies whether the first access point device accepts or rejects the site device from joining the first R-TWT scheduling.
[0328] Optionally, in an embodiment of the present disclosure, if the service time of the first R-TWT schedule overlaps with the service time of the second R-TWT schedule, and the signal strength identified by the second identification field is lower than the preset signal strength threshold, the third wireless frame identifies at least one of the following:
[0329] When the first Broadcast TWT Parameter Set field is set to one of a first parameter value, a second parameter value, and a third parameter value, the third radio frame identifies that the first access point device accepts the site device from joining the first R-TWT scheduling;
[0330] When the first Broadcast TWT Parameter Set field is set to the second parameter value or the third parameter value, the third radio frame indicates that the first access point device suggests or recommends that the site device join a third R-TWT schedule; and parameters of the third R-TWT schedule are not completely consistent with parameters of the first R-TWT schedule;
[0331] When the first Broadcast TWT Parameter Set field is set to one of the first parameter value, the second parameter value and the third parameter value, the third wireless frame identifies that the first access point device refuses the site device to join the first R-TWT scheduling.
[0332] Optionally, in an embodiment of the present disclosure, if the service time of the first R-TWT schedule overlaps with the service time of the second R-TWT schedule, and the signal strength identified by the second identification field is not lower than the preset signal strength threshold, the third wireless frame identifies at least one of the following:
[0333] When the first Broadcast TWT Parameter Set field is set to the second parameter value or the third parameter value, the third radio frame identifies that the first access point device suggests or recommends that the site device join a third R-TWT schedule; and the service time of the third R-TWT schedule does not overlap with the service time of the second R-TWT schedule;
[0334] When the first Broadcast TWT Parameter Set field is set to one of the first parameter value, the second parameter value and the third parameter value, the third identification information indicates that the access point device refuses the site device to join the first R-TWT scheduling.
[0335] Optionally, in an embodiment of the present disclosure, if the service time scheduled by the first R-TWT does not overlap with the service time scheduled by the second R-TWT, the third radio frame identifies at least one of the following:
[0336] When the first Broadcast TWT Parameter Set field is set to one of a first parameter value, a second parameter value, and a third parameter value, the third radio frame identifies that the first access point device accepts the site device from joining the first R-TWT scheduling;
[0337] When the first Broadcast TWT Parameter Set field is set to the second parameter value or the third parameter value, the third radio frame indicates that the first access point device suggests or recommends the site device to join a third R-TWT schedule; the parameters of the third R-TWT schedule are not completely consistent with the parameters of the first R-TWT schedule;
[0338] When the first Broadcast TWT Parameter Set field is set to one of the first parameter value, the second parameter value and the third parameter value, the third wireless frame identifies that the first access point device refuses the site device to join the first R-TWT scheduling.
[0339] Optionally, in an embodiment of the present disclosure, the third wireless frame is one or more of an Association Response frame, a Reassociation Response frame, and a TWT Setup frame.
[0340] The communication method involved in the embodiments of the present disclosure may include at least one of the aforementioned steps and embodiments. For example, step 601 can be implemented as an independent embodiment, step 602 can be implemented as an independent embodiment, step 603 can be implemented as an independent embodiment, and step 604 can be implemented as an independent embodiment; the combination of step 601 and step 602 can be implemented as an independent embodiment, the combination of step 602 and step 603 can be implemented as an independent embodiment, and the combination of step 603 and step 604 can be implemented as an independent embodiment, but the present invention is not limited thereto.
[0341] The embodiments of the present disclosure further provide an apparatus for implementing any of the above methods. For example, an apparatus is provided, comprising units or modules for implementing each step performed by a terminal in any of the above methods. For another example, another apparatus is provided, comprising units or modules for implementing each step performed by a network device (e.g., an access network device, a core network function node, a core network device, etc.) in any of the above methods.
[0342] It should be understood that the division of the various units or modules in the above device is merely a division of logical functions. In actual implementation, they may be fully or partially integrated into a physical entity, or they may be physically separated. In addition, the units or modules in the device may be implemented in the form of a processor calling software: for example, the device includes a processor, the processor is connected to a memory, and the memory stores instructions. The processor calls the instructions stored in the memory to implement any of the above methods or implement the functions of the various units or modules of the above device, wherein the processor is, for example, a general-purpose processor, such as a central processing unit (CPU) or a microprocessor, and the memory is a memory within the device or a memory outside the device. Alternatively, the units or modules in the device can be implemented in the form of hardware circuits, and the functions of some or all of the units or modules can be realized by designing the hardware circuits. The above-mentioned hardware circuits can be understood as one or more processors; for example, in one implementation, the above-mentioned hardware circuit is an application-specific integrated circuit (ASIC), which realizes the functions of some or all of the above units or modules by designing the logical relationship of the components in the circuit; for example, in another implementation, the above-mentioned hardware circuit can be realized by a programmable logic device (PLD). Taking a field programmable gate array (FPGA) as an example, it can include a large number of logic gate circuits, and the connection relationship between the logic gate circuits is configured by configuring the configuration file, thereby realizing the functions of some or all of the above units or modules. All units or modules of the above devices can be realized in the form of software called by the processor, or in the form of hardware circuits, or in part by the form of software called by the processor, and the rest by hardware circuits.
[0343] In the embodiment of the present disclosure, the processor is a circuit with signal processing capability. In one implementation, the processor can be a circuit with instruction reading and execution capability, such as a central processing unit (CPU), a microprocessor, a graphics processing unit (GPU) (which can be understood as a microprocessor), or a digital signal processor (DSP); in another implementation, the processor can implement certain functions through the logical relationship of the hardware circuit, and the logical relationship of the above hardware circuit is fixed or reconfigurable, such as a hardware circuit implemented by a processor as an application-specific integrated circuit (ASIC) or a programmable logic device (PLD), such as an FPGA. In a reconfigurable hardware circuit, the process of the processor loading a configuration document and implementing the hardware circuit configuration can be understood as the process of the processor loading instructions to implement the functions of some or all of the above units or modules. In addition, it can also be a hardware circuit designed for artificial intelligence, which can be understood as an ASIC, such as a neural network processing unit (NPU), a tensor processing unit (TPU), a deep learning processing unit (DPU), etc.
[0344] FIG7 is a schematic diagram of the structure of a first access point device according to an embodiment of the present disclosure. As shown in FIG7 , the first access point device 700 may include at least one of a determining module 701 and a sending module 702 .
[0345] In some embodiments, the above-mentioned determination module 701 is used to determine a first wireless frame; the first wireless frame includes first identification information, and the first identification information identifies the basic service set identifier BSSID of the neighboring access point device; wherein the neighboring access point device is a neighboring access point device that can be monitored by the first access point device; the sending module 702 is used to send the first wireless frame.
[0346] Optionally, the determining module 701 is configured to execute at least one of the communication steps (e.g., step 201, step 401, and step 501, but not limited thereto) performed by the first access point device 101 in any of the above methods, which are not described in detail here. The sending module 702 is configured to execute steps 202, 402, and 502, but not limited thereto.
[0347] FIG8 is a schematic diagram of the structure of a station device according to an embodiment of the present disclosure. As shown in FIG8 , the station device 800 may include: a receiving module 801 .
[0348] In some embodiments, the above-mentioned receiving module 801 is used to receive a first wireless frame sent by a first access point device; the first wireless frame includes first identification information, and the first identification information identifies a set of BSSIDs where all neighboring access point devices are located; wherein the neighboring access point device is a neighboring access point device that can be monitored by the first access point device.
[0349] Optionally, the receiving module 801 is configured to execute at least one of the communication steps (eg, step 203 and step 601 , but not limited thereto) executed by the site device 102 in any of the above methods, which will not be described in detail here.
[0350] Figure 9 is a schematic diagram of the structure of a terminal 900 (e.g., user equipment) proposed in an embodiment of the present disclosure. Terminal 900 can be a chip, chip system, or processor that supports a network device implementing any of the above methods, or a chip, chip system, or processor that supports a terminal implementing any of the above methods. Terminal 900 can be used to implement the methods described in the above method embodiments. For details, please refer to the description of the above method embodiments.
[0351] As shown in Figure 9, terminal 900 includes one or more processors 901. Processor 901 can be a general-purpose processor or a dedicated processor, for example, a baseband processor or a central processing unit. The baseband processor can be used to process communication protocols and communication data, and the central processing unit can be used to control communication devices (such as base stations, baseband chips, terminal devices, terminal device chips, DUs or CUs, etc.), execute programs, and process program data. Terminal 900 is used to perform any of the above methods.
[0352] In some embodiments, the terminal 900 further includes one or more memories 902 for storing instructions. Optionally, all or part of the memories 902 may be located outside the terminal 900.
[0353] In some embodiments, the terminal 900 further includes one or more transceivers 904. When the terminal 900 includes one or more transceivers 904, the transceiver 904 performs at least one of the communication steps such as sending and / or receiving in the above method (for example, step 202, step 203, step 205, step 206, step 401, step 402, step 403, step 502, step 503, step 505, step 601, step 603, step 604, but not limited thereto), and the processor 901 performs at least one of the other steps (for example, step 201, step 204, step 207, step 501, step 504, step 602, but not limited thereto).
[0354] In some embodiments, a transceiver may include a receiver and / or a transmitter. The receiver and transmitter may be separate or integrated. Optionally, the terms transceiver, transceiver unit, transceiver, and transceiver circuit may be used interchangeably; the terms transmitter, transmitting unit, transmitter, and transmitting circuit may be used interchangeably; and the terms receiver, receiving unit, receiver, and receiving circuit may be used interchangeably.
[0355] In some embodiments, terminal 900 may include one or more interface circuits 903. Optionally, interface circuit 903 is connected to memory 902. Interface circuit 903 may be configured to receive signals from memory 902 or other devices, and may be configured to send signals to memory 902 or other devices. For example, interface circuit 903 may read instructions stored in memory 902 and send the instructions to processor 901.
[0356] The terminal 900 described in the above embodiment may be a communication device such as a user device, but the scope of the terminal 900 described in the present disclosure is not limited thereto, and the structure of the terminal 900 may not be limited by FIG. 9 . The communication device may be an independent device or may be part of a larger device. For example, the communication device may be: (1) an independent integrated circuit IC, or a chip, or a chip system or subsystem; (2) a collection of one or more ICs, optionally, the above IC collection may also include a storage component for storing data and programs; (3) an ASIC, such as a modem; (4) a module that can be embedded in other devices; (5) a receiver, a terminal device, an intelligent terminal device, a cellular phone, a wireless device, a handheld device, a mobile unit, an in-vehicle device, a network device, a cloud device, an artificial intelligence device, etc.; (6) others, etc.
[0357] FIG10 is a schematic diagram of the structure of a chip 1000 according to an embodiment of the present disclosure. If the terminal 900 is a chip or a chip system, reference may be made to the schematic diagram of the structure of the chip 1000 shown in FIG10 , but the present disclosure is not limited thereto.
[0358] The chip 1000 includes one or more processors 1001 , and the chip 1000 is configured to execute any of the above methods.
[0359] In some embodiments, chip 1000 further includes one or more 1003. Optionally, interface circuit 1003 is connected to memory 1002. Interface circuit 1003 can be used to receive signals from memory 1002 or other devices, and interface circuit 1003 can be used to send signals to memory 1002 or other devices. For example, interface circuit 1003 can read instructions stored in memory 1002 and send the instructions to processor 1001.
[0360] In some embodiments, the interface circuit 1003 executes at least one of the communication steps such as sending and / or receiving in the above method (for example, step 202, step 203, step 205, step 206, step 401, step 402, step 403, step 502, step 503, step 505, step 601, step 603, step 604, but not limited to these), and the processor 1001 executes at least one of the other steps (for example, step 201, step 204, step 207, step 501, step 504, step 602, but not limited to these).
[0361] In some embodiments, terms such as interface circuit, interface, transceiver pin, and transceiver may be used interchangeably.
[0362] In some embodiments, the chip 1000 further includes one or more memories 1002 for storing instructions. Alternatively, all or part of the memory 1002 may be external to the chip 1000.
[0363] The present disclosure also provides a storage medium having instructions stored thereon. When the instructions are executed on the terminal 900, the terminal 900 executes any of the above methods. Optionally, the storage medium is an electronic storage medium. Optionally, the storage medium is a computer-readable storage medium, but is not limited thereto and may also be a storage medium readable by other devices. Optionally, the storage medium may be a non-transitory storage medium, but is not limited thereto and may also be a transient storage medium.
[0364] The present disclosure also provides a program product, which, when executed by the terminal 900, enables the terminal 900 to perform any of the above methods. Optionally, the program product is a computer program product.
[0365] The present disclosure also proposes a computer program, which, when executed on a computer, causes the computer to perform any one of the above methods.
Claims
1. A communication method, characterized in that: include: The first access point device determines a first radio frame; the first radio frame includes first identification information, where the first identification information identifies a basic service set identifier (BSSID) of a neighboring access point device; wherein the neighboring access point device is a neighboring access point device that can be monitored by the first access point device; The first radio frame is sent.
2. The communication method according to claim 1, wherein: The first radio frame includes a first element, and the first identification information is carried in the first element; The first element includes at least one of the following: A first field, identifying the first element, is used to identify the first element as a neighbor access point identifier set element; The second field identifies the byte length of the first element; The third field includes one or more of the first identification information.
3. The communication method according to claim 2, wherein: The method further comprises at least one of the following: The first field includes an element ID field; The second field includes a length field; The third field includes an overlapping basic service set identifier (OBSS BSSID Set) field.
4. The communication method according to any one of claims 1 to 3, characterized in that: The first wireless frame includes at least one of a beacon frame, a probe response frame, an association response frame, and a reassociation response frame.
5. The communication method according to claim 1, wherein: The method further comprises: Receiving a second radio frame sent by a site device; wherein the second radio frame indicates that the site device requests to join a first restricted target wake-up time R-TWT schedule of the first access point device; The second radio frame includes second identification information, where the second identification information identifies second R-TWT scheduling information broadcast by the second access point device; The second access point device does not include a neighboring access point device identified by the first identification information in the first wireless frame, and the site device monitors that the signal strength of the second access point device is higher than a preset signal strength threshold. The communication method according to claim 5 , wherein: The second identification information is carried in a target wake-up time TWT element of the second radio frame; The TWT element includes: a first broadcast target wake-up time parameter set Broadcast TWT Parameter Set field and a second Broadcast TWT Parameter Set field; Among them, the first Broadcast TWT Parameter Set field identifies the first R-TWT scheduling; the second Broadcast TWT Parameter Set field identifies the second R-TWT scheduling.
7. The communication method according to claim 6, wherein: The second Broadcast TWT Parameter Set field includes a first identification field and a second identification field; The first identification field identifies a BSS where the second access point device is located; The second identification field identifies the signal strength of the second access point device monitored by the site device.
8. The communication method according to claim 7, wherein: The second Broadcast TWT Parameter Set field also includes a request type Request Type subfield; the target wake-up time request TWT Request field and the target wake-up time setting command TWT Setup Command field of the Request Type subfield are set to reserved bits.
9. The communication method according to any one of claims 5 to 8, characterized in that: The second wireless frame includes at least one of an association request frame, a reassociation request frame, and a target wake time setting TWT Setup frame.
10. The communication method according to claim 8, wherein: The method further comprises: Determine a third radio frame, where the third radio frame includes third identification information, where the third identification information identifies whether the first access point device accepts or rejects the site device from joining the first R-TWT scheduling; The third radio frame is sent.
11. The communication method according to claim 10, wherein: If the service time of the first R-TWT schedule overlaps with the service time of the second R-TWT schedule, and the signal strength identified by the second identification field is lower than the preset signal strength threshold, the third wireless frame identifies at least one of the following: When the first Broadcast TWT Parameter Set field is set to one of a first parameter value, a second parameter value, and a third parameter value, the third radio frame identifies that the first access point device accepts the site device from joining the first R-TWT scheduling; When the first Broadcast TWT Parameter Set field is set to the second parameter value or the third parameter value, the third radio frame indicates that the first access point device suggests or recommends that the site device join a third R-TWT schedule; and parameters of the third R-TWT schedule are not completely consistent with parameters of the first R-TWT schedule; When the first Broadcast TWT Parameter Set field is set to one of the first parameter value, the second parameter value and the third parameter value, the third wireless frame identifies that the first access point device refuses the site device to join the first R-TWT scheduling.
12. The communication method according to claim 10, wherein: If the service time of the first R-TWT schedule overlaps with the service time of the second R-TWT schedule, and the signal strength identified by the second identification field is not lower than the preset signal strength threshold, the third wireless frame identifies at least one of the following: When the first Broadcast TWT Parameter Set field is set to the second parameter value or the third parameter value, the third radio frame identifies that the first access point device suggests or recommends that the site device join a third R-TWT schedule; and the service time of the third R-TWT schedule does not overlap with the service time of the second R-TWT schedule; When the first Broadcast TWT Parameter Set field is set to one of the first parameter value, the second parameter value and the third parameter value, the third identification information indicates that the access point device refuses the site device to join the first R-TWT scheduling.
13. The communication method according to claim 10, wherein: If the service time scheduled by the first R-TWT does not overlap with the service time scheduled by the second R-TWT, the third radio frame identifies at least one of the following: When the first Broadcast TWT Parameter Set field is set to one of a first parameter value, a second parameter value, and a third parameter value, the third radio frame identifies that the first access point device accepts the site device from joining the first R-TWT scheduling; When the first Broadcast TWT Parameter Set field is set to the second parameter value or the third parameter value, the third radio frame indicates that the first access point device suggests or recommends that the site device join a third R-TWT schedule; and parameters of the third R-TWT schedule are not completely consistent with parameters of the first R-TWT schedule; When the first Broadcast TWT Parameter Set field is set to one of the first parameter value, the second parameter value and the third parameter value, the third wireless frame identifies that the first access point device refuses the site device to join the first R-TWT scheduling.
14. The communication method according to claim 10, wherein: The third wireless frame is one or more of an Association Response frame, a Reassociation Response frame and a TWT Setup frame.
15. A communication method, characterized in that: include: The site device receives a first wireless frame sent by the first access point device; The first wireless frame includes first identification information, where the first identification information identifies a BSSID of a neighboring access point device; wherein the neighboring access point device is a neighboring access point device that can be monitored by the first access point device.
16. The communication method according to claim 15, characterized in that: The first radio frame includes a first element, and the first identification information is carried in the first element; The first element includes at least one of the following: A first field, identifying the first element, is used to identify the first element as a neighbor access point identifier set element; The second field identifies the byte length of the first element; The third field includes one or more of the first identification information.
17. The communication method according to claim 16, wherein: The method further comprises at least one of the following: The first field includes an Element ID field; The second field includes a Length field; The third field includes an OBSS BSSID Set field.
18. The communication method according to any one of claims 15 to 17, characterized in that: The first wireless frame includes at least one of a Beacon frame, a Probe Response frame, an Association Response frame, and a Reassociation Response frame.
19. The communication method according to claim 15, wherein: The method further comprises: The site device determines a second radio frame; wherein the second radio frame identifies a request by the site device to join a first R-TWT schedule of the first access point device; The second radio frame includes second identification information, where the second identification information identifies second R-TWT scheduling information broadcast by the second access point device; The second access point device does not include a neighboring access point device identified by the first identification information in the first wireless frame, and the site device monitors that the signal strength of the second access point device is higher than a preset signal strength threshold; The second radio frame is sent.
20. The communication method according to claim 19, wherein: The second identification information is carried in a TWT element of the second radio frame; The TWT element includes: a first Broadcast TWT Parameter Set field and a second Broadcast TWT Parameter Set field; Among them, the first Broadcast TWT Parameter Set field identifies the first R-TWT scheduling; the second Broadcast TWT Parameter Set field identifies the second R-TWT scheduling.
21. The communication method according to claim 20, wherein: The second Broadcast TWT Parameter Set field includes a first identification field and a second identification field; The first identification field identifies a BSS where the second access point device is located; The second identification field identifies the signal strength of the second access point device monitored by the site device.
22. The communication method according to claim 21, wherein: The second Broadcast TWT Parameter Set field also includes a Request Type subfield; the TWT Request field and the TWT Setup Command field of the Request Type subfield are set to reserved bits.
23. The communication method according to any one of claims 19 to 22, characterized in that: The second wireless frame includes at least one of an Association Request frame, a Reassociation Request frame and a TWT Setup frame.
24. The communication method according to claim 22, wherein: The method further comprises: The site device receives a third wireless frame sent by the first access point device; the third wireless frame includes third identification information, and the third identification information identifies whether the first access point device accepts or rejects the site device from joining the first R-TWT scheduling.
25. The communication method according to claim 24, characterized in that If the service time of the first R-TWT schedule overlaps with the service time of the second R-TWT schedule, and the signal strength identified by the second identification field is lower than the preset signal strength threshold, the third wireless frame identifies at least one of the following: When the first Broadcast TWT Parameter Set field is set to one of a first parameter value, a second parameter value, and a third parameter value, the third radio frame identifies that the first access point device accepts the site device from joining the first R-TWT scheduling; When the first Broadcast TWT Parameter Set field is set to the second parameter value or the third parameter value, the third radio frame indicates that the first access point device suggests or recommends that the site device join a third R-TWT schedule; and parameters of the third R-TWT schedule are not completely consistent with parameters of the first R-TWT schedule; When the first Broadcast TWT Parameter Set field is set to one of the first parameter value, the second parameter value and the third parameter value, the third wireless frame identifies that the first access point device refuses the site device to join the first R-TWT scheduling.
26. The communication method according to claim 24, characterized in that If the service time of the first R-TWT schedule overlaps with the service time of the second R-TWT schedule, and the signal strength identified by the second identification field is not lower than the preset signal strength threshold, the third wireless frame identifies at least one of the following: When the first Broadcast TWT Parameter Set field is set to the second parameter value or the third parameter value, the third radio frame identifies that the first access point device suggests or recommends that the site device join a third R-TWT schedule; and the service time of the third R-TWT schedule does not overlap with the service time of the second R-TWT schedule; When the first Broadcast TWT Parameter Set field is set to one of the first parameter value, the second parameter value and the third parameter value, the third identification information indicates that the access point device refuses the site device to join the first R-TWT scheduling.
27. The communication method according to claim 24, wherein: If the service time scheduled by the first R-TWT does not overlap with the service time scheduled by the second R-TWT, the third radio frame identifies at least one of the following: When the first Broadcast TWT Parameter Set field is set to one of a first parameter value, a second parameter value, and a third parameter value, the third radio frame identifies that the first access point device accepts the site device from joining the first R-TWT scheduling; When the first Broadcast TWT Parameter Set field is set to the second parameter value or the third parameter value, the third radio frame indicates that the first access point device suggests or recommends the site device to join a third R-TWT schedule; the parameters of the third R-TWT schedule are not completely consistent with the parameters of the first R-TWT schedule; When the first Broadcast TWT Parameter Set field is set to one of the first parameter value, the second parameter value and the third parameter value, the third wireless frame identifies that the first access point device refuses the site device to join the first R-TWT scheduling.
28. The communication method according to claim 24, characterized in that The third wireless frame is one or more of an Association Response frame, a Reassociation Response frame and a TWT Setup frame.
29. A communication device, the communication device being a first access point device, characterized in that: The first access point device includes: A determination module, configured to determine a first wireless frame; the first wireless frame includes first identification information, the first identification information identifying a BSSID where a neighboring access point device is located; wherein the neighboring access point device is a neighboring access point device that can be monitored by the first access point device; A sending module is used to send the first wireless frame.
30. A communication device, wherein the communication device is a station device, characterized in that: The site equipment includes: A receiving module is used to receive a first wireless frame sent by a first access point device; the first wireless frame includes first identification information, and the first identification information identifies a set of BSSIDs where all neighboring access point devices are located; wherein the neighboring access point device is a neighboring access point device that can be monitored by the first access point device.
31. A communication device, the communication device being a first access point device, characterized in that: include: one or more processors; The first access point device is configured to execute the communication method according to any one of claims 1 to 14.
32. A communication device, the communication device being a station device, characterized in that: include: one or more processors; The site device is configured to execute the communication method according to any one of claims 15 to 28.
33. A communication system, characterized in that: The invention comprises a first access point device and a station device; wherein the first access point device is configured to implement the communication method according to any one of claims 1 to 14, and the station device is configured to implement the communication method according to any one of claims 15 to 28.
34. A storage medium storing instructions, characterized in that: When the instruction is executed on a communication device, the communication device is caused to execute the communication method according to any one of claims 1 to 14, or execute the communication method according to any one of claims 15 to 28.
35. A computer program product, characterized in that The computer program product comprises a computer program, and when the computer program is executed by a processor, the computer program implements the communication method according to any one of claims 1 to 14, or implements the communication method according to any one of claims 15 to 28.
Citation Information
Patent Citations
Communication method, STA device, AP device and storage medium
CN117099416A
Communication method, AP device and storage medium
CN117136594A
Data transmission method, device and computer storage medium
WO2017118297A1
Communication method, apparatus and system based on target wake time
WO2023116352A1