Communication method, communication device, and communication system
Patent Information
- Application Number
- PCT/CN2025/078084
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2025-02-19
- Publication Date
- 2026-08-27
Smart Images
Figure CN2025078084_27082026_PF_FP_ABST
Abstract
Description
Communication method, communication device and communication system TECHNICAL FIELD
[0001] The present disclosure relates to the technical field of communication, and in particular to a communication method, a communication device and a communication system. BACKGROUND
[0002] Currently, the contents researched by Wi-Fi technology, such as Ultra High Reliability (UHR), have the vision of improving the reliability of Wireless Local Area Networks (WLAN) connection, reducing delay, improving manageability, increasing throughput at different Signal to Noise Ratio (SNR) levels and reducing device-level power consumption, etc.
[0003] In UHR, how to make the coordinated communication between devices not interfere with each other needs to be further improved. SUMMARY
[0004] Embodiments of the present disclosure provide a communication method, a communication device and a communication system to reduce the interference of coordinated communication between devices.
[0005] In one aspect, the present disclosure provides a communication method applied to a first AP, the method comprising:
[0006] determining a first wireless frame; the first wireless frame is used to trigger a transmission opportunity-based power control coordination Co-SR mechanism;
[0007] The first wireless frame comprises first identification information, and the first identification information identifies communication parameter information of the first AP and a second AP under the Co-SR mechanism.
[0008] The first AP sends the first wireless frame.
[0009] In another aspect, the present disclosure also provides a communication method applied to a second AP, the method comprising:
[0010] The second AP receives a first wireless frame; the first wireless frame is used to trigger a Co-SR mechanism.
[0011] The first wireless frame comprises first identification information, and the first identification information identifies communication parameter information of the first AP and the second AP under the Co-SR mechanism.
[0012] In another aspect, the present disclosure also provides a communication device, which is a first AP, and the first AP comprises:
[0013] determining a first radio frame; the first radio frame is used to trigger a transmission opportunity based power control coordination Co-SR mechanism;
[0014] The first radio frame includes first identification information, and the first identification information identifies communication parameter information of the first AP and the second AP under the Co-SR mechanism.
[0015] The first radio frame includes first identification information, and the first identification information identifies communication parameter information of the first AP and the second AP under the Co-SR mechanism.
[0016] In another aspect, the embodiments of the present disclosure also provide a communication device, which is a second AP, and the second AP includes:
[0017] receiving a first radio frame; the first radio frame is used to trigger a Co-SR mechanism;
[0018] The first radio frame includes first identification information, and the first identification information identifies communication parameter information of the first AP and the second AP under the Co-SR mechanism.
[0019] In another aspect, the embodiments of the present disclosure also provide a communication device, which is a first AP, and the first AP includes:
[0020] one or more processors;
[0021] The first AP is configured to perform the communication method described in the embodiments of the present disclosure.
[0022] In another aspect, the embodiments of the present disclosure also provide a communication device, which is a second AP, and the second AP includes:
[0023] one or more processors;
[0024] The second AP is configured to perform the communication method described in the embodiments of the present disclosure.
[0025] The embodiments of the present disclosure also provide a communication system, which includes a first AP and a second AP.
[0026] The first AP determines a first radio frame; the first radio frame is used to trigger a transmission opportunity based power control coordination Co-SR mechanism; the first radio frame includes first identification information, and the first identification information identifies communication parameter information of the first AP and the second AP under the Co-SR mechanism; and the first radio frame is transmitted.
[0027] The second AP receives a first wireless frame; the first wireless frame is used to trigger a Co-SR mechanism; wherein the first wireless frame comprises first identification information, and the first identification information identifies communication parameter information of the first AP and the second AP under the Co-SR mechanism.
[0028] The disclosure also provides a storage medium storing instructions, which, when executed on a communication device, cause the communication device to perform the communication method as described in the embodiments of the disclosure.
[0029] In the embodiments of the disclosure, a first wireless frame is determined and transmitted; the first wireless frame is used to trigger a Co-SR mechanism based on transmission opportunity power control coordination; wherein the first wireless frame comprises first identification information, and the first identification information identifies communication parameter information of the first AP and the second AP under the Co-SR mechanism, which ensures that the two APs can communicate more accurately when working together. Through this mechanism, the interference problem that may occur when multiple APs work together can be reduced, and signal conflicts caused by inconsistent parameters or improper coordination can be avoided, thereby improving the stability and efficiency of communication in a multi-AP environment.
[0030] Additional aspects and advantages of the embodiments of the disclosure will be in part apparent and in part pointed out hereinafter. BRIEF DESCRIPTION OF DRAWINGS
[0031] In order to more clearly illustrate the technical solutions in the embodiments of the disclosure, the following describes the drawings required for the embodiment description. The following drawings are only some embodiments of the disclosure, and do not specifically limit the protection scope of the disclosure.
[0032] FIG. 1 is one exemplary schematic diagram of an architecture of a communication system according to an embodiment of the disclosure;
[0033] FIG. 2 is an exemplary interactive schematic diagram of a method according to an embodiment of the disclosure;
[0034] FIG. 3 is a flow schematic diagram of a communication method according to an embodiment of the disclosure;
[0035] FIG. 4 is a flow schematic diagram of a communication method according to another embodiment of the disclosure;
[0036] FIG. 5 is a structural schematic diagram of a first AP according to an embodiment of the disclosure;
[0037] FIG. 6 is a structural schematic diagram of a second AP according to an embodiment of the disclosure;
[0038] FIG. 7 is a structural schematic diagram of a terminal according to an embodiment of the disclosure;
[0039] FIG. 8 is a structural schematic diagram of a chip according to an embodiment of the present disclosure. DETAILED DESCRIPTION
[0040] The present disclosure provides a communication method, a communication device and a communication system.
[0041] In a first aspect, the present disclosure provides a communication method applied to a first AP, the method comprising:
[0042] determining a first wireless frame; the first wireless frame being used to trigger a transmission opportunity based power control coordination Co-SR mechanism;
[0043] wherein the first wireless frame comprises first identification information, the first identification information identifying communication parameter information of the first AP and a second AP under the Co-SR mechanism.
[0044] sending the first wireless frame.
[0045] In the above embodiment, the first wireless frame is determined and sent, the first wireless frame being used to trigger a transmission opportunity based power control coordination Co-SR mechanism; wherein the first wireless frame comprises first identification information, the first identification information identifying communication parameter information of the first AP and a second AP under the Co-SR mechanism, which ensures that the two APs can perform more accurate communication parameter coordination when working cooperatively. Through this mechanism, the interference problem that may be caused when multiple APs work cooperatively can be reduced, and signal conflict caused by inconsistent parameters or improper coordination can be avoided, thereby improving the stability and efficiency of communication in a multi-AP environment.
[0046] In some embodiments in combination with the first aspect, in some embodiments, the first identification information comprises at least one of the following:
[0047] a first identification bit identifying bandwidth information of the Co-SR mechanism established by the first AP after obtaining a transmission opportunity TXOP;
[0048] a second identification bit identifying a first transmission power of a downlink physical layer protocol data unit PPDU sent by the first AP and / or a modulation and coding MCS under a link where the downlink PPDU is sent by the first AP;
[0049] a third identification bit identifying that the first AP initiates a Co-SR operation and / or transmission mode information of the Co-SR mechanism;
[0050] a fourth identification bit identifying a number of spatial streams SS used by the first AP under the Co-SR mechanism.
[0051] In the above embodiments, by identifying the bandwidth information, the transmission power, the modulation and coding mode, the transmission mode and the number of spatial streams, the transmission performance under the Co-SR mechanism can be optimized, the dynamic adjustment of signal quality and data rate is ensured, and the transmission efficiency and stability of the system are improved.
[0052] In some embodiments of the first aspect, in some embodiments, the first identification bit, the second identification bit, the third identification bit and the fourth identification bit are carried in a common info field of the first radio frame.
[0053] The second identification bit is carried in a transmission power (Tx power) information field of the common info field.
[0054] In the above embodiments, by carrying the identification information such as bandwidth, transmission power, modulation and coding mode, transmission mode and number of spatial streams in the common info field of the first radio frame, more accurate transmission control can be achieved, the system flexibility and signal quality under the Co-SR mechanism are improved, and the interference management and data transmission efficiency in the multi-AP coordination process are optimized.
[0055] In some embodiments of the first aspect, in some embodiments, the first transmission power is determined according to an interference signal value of the first AP perceived by a station device (STA) associated with the second AP; or,
[0056] The first transmission power is determined according to an interference signal value of the first AP perceived by a STA in communication with the first AP within the TXOP.
[0057] In the above embodiments, by adjusting the first transmission power according to the interference signal value perceived by the STA associated with the second AP or the STA in communication with the first AP within the TXOP, the interference can be effectively reduced, the signal quality is optimized, the transmission efficiency in multi-AP cooperation is improved, and stable communication in the scenario of shared resources is ensured.
[0058] In some embodiments of the first aspect, in some embodiments, the first identification information further includes at least one of the following:
[0059] A fifth identification bit identifying the second AP;
[0060] A sixth identification bit identifying the number of SS used by the second AP when sending a downlink PPDU;
[0061] A seventh identification bit identifying a second transmission power of the second AP when sending a downlink PPDU;
[0062] An eighth identification bit identifying an MCS under a link where the second AP sends a downlink PPDU.
[0063] In the above embodiments, the fifth to eighth identification bits provide detailed identification information of the second AP, including the number of spatial streams used, the transmission power, and the modulation and coding scheme (MCS), which can help optimize resource allocation and interference management in multi-AP cooperation, ensure more accurate coordination between different APs, and improve overall communication efficiency and system stability.
[0064] In some embodiments of the first aspect, in some embodiments, the fifth identification bit, the sixth identification bit, the seventh identification bit, and the eighth identification bit are carried in a user information user info field of the first wireless frame.
[0065] The seventh identification bit is carried in a Tx power information field of the user info field, and the eighth identification bit is carried in an MCS information field of the user info field.
[0066] In the above embodiments, the fifth to eighth identification bits are carried in the user information (user info) field, which can ensure effective transmission of information such as the transmission power, the number of spatial streams, and the modulation and coding scheme (MCS) of the second AP. This approach helps improve resource management and interference control capabilities in multi-AP cooperation, ensures more accurate information transmission during communication, and improves system transmission performance and resource utilization.
[0067] In some embodiments of the first aspect, in some embodiments, the second transmission power is determined according to an interference signal value of the second AP perceived by a STA associated with the first AP; or,
[0068] The second transmission power is determined according to an interference signal value of the second AP perceived by a STA communicating with the second AP within the TXOP.
[0069] In the above embodiments, the second transmission power is dynamically adjusted according to the interference signal value of the second AP perceived by the STA associated with the first AP, which helps optimize the balance between signal strength and interference, reduces the decline in communication quality caused by interference, and improves overall network performance under multi-AP cooperation. This approach can flexibly adjust the transmission power according to real-time interference information, ensuring more stable and efficient communication under different network conditions.
[0070] In some embodiments of the first aspect, in some embodiments, the method further comprises:
[0071] receiving an interference signal value of the first AP perceived by a STA associated with the second AP sent by the second AP.
[0072] In the above embodiments, by receiving the interference signal value of the first AP perceived by the STA associated with the second AP, real-time interference evaluation can be achieved, helping the first AP to adjust its transmission power or other communication parameters according to the latest network environment, thereby effectively avoiding interference and improving communication quality and network stability.
[0073] In a second aspect, the embodiments of the present disclosure provide a communication method applied to a second AP, the method comprising:
[0074] receiving a first wireless frame; the first wireless frame is used to trigger a Co-SR mechanism;
[0075] The first wireless frame comprises first identification information, and the first identification information identifies communication parameter information of the first AP and the second AP under the Co-SR mechanism.
[0076] In combination with some embodiments of the second aspect, in some embodiments, the method further comprises:
[0077] sending, to the first AP, an interference signal value of the first AP perceived by a STA associated with the second AP.
[0078] In combination with some embodiments of the second aspect, in some embodiments,
[0079] The interference signal value of the first AP is perceived by the STA in a null data packet announcement (NDPA) process; or
[0080] The interference signal value of the first AP is perceived by the STA in a radio management (RM) process.
[0081] In the above embodiments, by obtaining the interference signal value of the first AP perceived by the STA in a null data packet announcement (NDPA) process or a radio management (RM) process, the interference situation in the network can be more accurately evaluated. This helps the first AP to obtain interference information in time and adjust its communication strategy or transmission power, thereby reducing interference in a shared channel environment and improving the transmission efficiency and signal quality of the network.
[0082] In a third aspect, the embodiments of the present disclosure further provide a communication device, which is a first AP, and comprises at least one of a determination module and a sending module; wherein the first AP is configured to execute the optional implementation manners of the first aspect.
[0083] In a fourth aspect, the embodiments of the present disclosure further provide a communication device, which is a second AP, and comprises a receiving module; wherein the second AP is configured to execute the optional implementation manners of the second aspect.
[0084] In a fifth aspect, the embodiments of the present disclosure further provide a communication device, the communication device being a first AP, comprising:
[0085] one or more processors;
[0086] The first AP is configured to perform the optional implementation manners of the first aspect.
[0087] In a sixth aspect, the embodiments of the present disclosure further provide a communication device, the communication device being a second AP, comprising:
[0088] one or more processors;
[0089] The second AP is configured to perform the optional implementation manners of the second aspect.
[0090] In a seventh aspect, the embodiments of the present disclosure further provide a communication system, comprising a first AP and a second AP.
[0091] The first AP determines a first wireless frame; the first wireless frame is used to trigger a transmission opportunity-based power control coordination Co-SR mechanism; the first wireless frame comprises first identification information, the first identification information identifying communication parameter information of the first AP and the second AP under the Co-SR mechanism; and the first AP transmits the first wireless frame.
[0092] The second AP receives the first wireless frame; the first wireless frame is used to trigger the Co-SR mechanism; the first wireless frame comprises first identification information, the first identification information identifying communication parameter information of the first AP and the second AP under the Co-SR mechanism.
[0093] In an eighth aspect, the embodiments of the present disclosure further provide a storage medium, the storage medium storing instructions, when the instructions are executed on a communication device, causing the communication device to perform the optional implementation manners of the first aspect and the second aspect.
[0094] In a ninth aspect, the embodiments of the present disclosure provide a program product, when the program product is executed by a communication device, causing the communication device to perform the method described in the optional implementation manners of the first aspect and the second aspect.
[0095] In a tenth aspect, the embodiments of the present disclosure provide a computer program, when the computer program is executed on a computer, causing the computer to perform the method described in the optional implementation manners of the first aspect and the second aspect.
[0096] In an eleventh aspect, the embodiments of the present disclosure provide a chip or a chip system. The chip or the chip system comprises a processing circuit configured to perform the method described in the optional implementation manners of the first aspect and the second aspect.
[0097] It can be understood that the first AP, the second AP, the communication system, the storage medium, the program product, the computer program, the chip or the chip system are used to execute the method proposed in the embodiments of the present disclosure. Therefore, the beneficial effects achieved thereby can refer to the beneficial effects in the corresponding method, which will not be described here.
[0098] The embodiments of the present disclosure propose a communication method, a communication device and a communication system. In some embodiments, the communication method and the signal sending method, the wireless frame sending method and the like can be replaced with each other, and the information processing system and the communication system and the like can be replaced with each other.
[0099] The embodiments of the present disclosure are not exhaustive, but only illustrate some embodiments, and are not specific limitations on the protection scope of the present disclosure. In the case of no contradiction, each step in an embodiment can be implemented as an independent embodiment, and the steps can be combined arbitrarily, for example, the scheme after removing some steps in an embodiment can also be implemented as an independent embodiment, and the order of the steps in an embodiment can be exchanged arbitrarily, in addition, the optional implementation manners in an embodiment can be combined arbitrarily; in addition, the embodiments can be combined arbitrarily, for example, the steps of different embodiments or part or all of the steps of different embodiments can be combined arbitrarily, an embodiment can be combined with the optional implementation manners of other embodiments arbitrarily.
[0100] In the embodiments of the present disclosure, the terms and / or descriptions between the embodiments are consistent and can be referred to each other if there is no special description and logical conflict, and the technical features in different embodiments can be combined to form new embodiments according to their inherent logical relationship.
[0101] The terms used in the embodiments of the present disclosure are only for the purpose of describing specific embodiments, and not as a limitation on the present disclosure.
[0102] In the embodiments of the present disclosure, "a plurality of" refers to two or more.
[0103] In some embodiments, the terms "at least one of A or B", "at least one of A and B", "one or more", "a plurality of", "multiple" and the like can be replaced with each other.
[0104] In some embodiments, the description of "at least one of A, B", "A and / or B", "A in one case and B in another", "A in response to one case and B in response to another", etc. can include the following technical solutions according to the case: in some embodiments, A (A is executed regardless of whether B branch exists); in some embodiments, B (B is executed regardless of whether A branch exists); in some embodiments, A and B are selectively executed (A and B are selectively executed); in some embodiments, A and B (A and B are executed). When there are more branches of A, B, C, etc., the above is similar.
[0105] In some embodiments, the description of "A or B" and the like can include the following technical solutions according to the case: in some embodiments, A (A is executed regardless of whether B branch exists); in some embodiments, B (B is executed regardless of whether A branch exists); in some embodiments, A and B are selectively executed (A and B are selectively executed). When there are more branches of A, B, C, etc., the above is similar.
[0106] The prefix words "first", "second" and the like in the embodiments of the present disclosure are only used to distinguish different description objects, and do not constitute a limitation on the position, order, priority, quantity or content of the description objects. The description of the description objects should refer to the description in the context of the claims or embodiments, and should not constitute an additional limitation because of the use of the prefix words. For example, the description object is "field", and the ordinal words before "field" in "first field" and "second field" do not limit the position or order between "fields", and "first" and "second" do not limit whether the "fields" modified by them are in the same message or not, nor limit the order of "first field" and "second field". For another example, the description object is "level", and the ordinal words before "level" in "first level" and "second level" do not limit the priority between "levels". For another example, the quantity of the description object is not limited by the ordinal words, and can be one or more. For example, "first device", where the quantity of "device" can be one or more. In addition, the objects modified by different prefix words can be the same or different, for example, the description object is "device", and "first device" and "second device" can be the same device or different devices, and their types can be the same or different; for another example, the description object is "information", and "first information" and "second information" can be the same information or different information, and their contents can be the same or different.
[0107] In some embodiments, "including A", "containing A", "for indicating A", "carrying A" can be interpreted as directly carrying A, or indirectly indicating A.
[0108] In some embodiments, the terms "time / frequency", "time / frequency domain" and the like refer to the time domain and / or the frequency domain.
[0109] In some embodiments, the terms "in response to", "in response to determining", "in the case of", "when", "if", "when", "if", and the like can be replaced with each other, which all refer to the device making corresponding processing under certain objective conditions, and do not necessarily limit the time, and do not require the device to have a judgment action when implemented, nor does it mean that there must be other limitations.
[0110] In some embodiments, the terms "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 lower than", "above", and the like can be replaced with each other, and the terms "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", "below", and the like can be replaced with each other.
[0111] In some embodiments, the apparatus and the like can be interpreted as physical or virtual, and the name thereof is not limited to the name recorded in the embodiments. The terms "apparatus", "equipment", "device", "circuit", "network element", "network function", "network device", "function", "node", "unit", "section", "system", "network", "chip", "chip system", "entity", "subject", and the like can be replaced with each other.
[0112] In some embodiments, "network" can be interpreted as an apparatus (for example, an access network device, a core network device, and the like) included in the network.
[0113] In addition, the terms "uplink", "downlink", and the like can also be replaced with the terms corresponding to the inter-terminal communication (for example, "side"). For example, the uplink channel, the downlink channel, and the like can be replaced with the side channel, and the uplink, the downlink, and the like can be replaced with the side link.
[0114] In some embodiments, the acquisition of data, information, and the like can comply with the laws and regulations of the country where the location is located.
[0115] In some embodiments, the data, information, and the like can be acquired after obtaining the consent of the user.
[0116] In addition, each element, each row, or each column in the table of the embodiments of the present disclosure can be implemented as an independent embodiment, and any combination of any element, any row, or any column can also be implemented as an independent embodiment.
[0117] FIG. 1 is a schematic diagram of an architecture of a communication system according to an embodiment of the present disclosure.
[0118] As shown in FIG. 1, the communication system 100 includes a first access point device (AP) 101, a second AP 102.
[0119] In some embodiments, the access point device 102 can be an access point for a mobile terminal to enter a wired network. The AP is equivalent to a bridge connecting the wired network and the wireless network, and its main function is to connect various wireless network clients together and then access the Ethernet through the wireless network. 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, 802.11a, 802.11bf, 802.11bn, etc., and support the next generation 802.11 protocol, but is not limited thereto.
[0120] Optionally, in the embodiments of the present disclosure, the AP can be a device supporting multi-link, which can be represented as an access point multi-link device (AP MLD) for example; the AP MLD can represent an access point supporting multi-link communication function. For example, in the embodiments of the present disclosure, link can represent connection or link; under various embodiments, the connection and the link can be interchangeable.
[0121] It can be understood that the communication system described in the embodiments of the present disclosure is for more clearly illustrating the technical solutions of the embodiments of the present disclosure, and does not constitute a limitation on the technical solutions proposed in the embodiments of the present disclosure. It can be known by those skilled in the art that, as the system architecture evolves and new business scenarios appear, the technical solutions proposed in the embodiments of the present disclosure are also applicable to similar technical problems.
[0122] The following embodiments of the present disclosure can be applied to the communication system 100 shown in FIG. 1 or part of the subject, but are not limited thereto. The subjects shown in FIG. 1 are examples, and the communication system can include all or part of the subjects in FIG. 1, or include other subjects other than those in FIG. 1. The number and form of each subject is arbitrary, each subject can be real or virtual, the connection relationship between each subject is an example, each subject can not be connected or can be connected, the connection can be in any way, can be direct connection or indirect connection, can be wired connection or wireless connection.
[0123] Embodiments of the present disclosure can be applied to a wireless local area network (WLAN), for example, a local area network using 802.11 series protocols. In a WLAN, a basic service set (BSS) is a basic component of a WLAN. A BSS network is composed of station devices having some association within a certain coverage area. One case of association is that the stations directly communicate with each other in an ad hoc network, which is referred to as an independent BSS (IBSS). Another more common case is that in a BSS network, there is only one central station having a full-time management BSS, which is referred to as an access point device, and other STAs in the network are associated with it. Other stations in the BSS network that are not central stations are referred to as terminals, also referred to as non-AP STAs. When describing a STA, it is not necessary to distinguish between a terminal and a non-AP STA. In the same BSS network, due to distance, transmission power, and the like, a STA cannot detect other STAs far away from it, and the two are each other's hidden nodes.
[0124] FIG. 2 is an interaction diagram of a communication method according to an embodiment of the present disclosure. As shown in FIG. 2, the above method includes:
[0125] In step 201, the first AP 101 determines a first wireless frame; the first wireless frame is used to trigger a transmission opportunity-based power control coordination Co-SR mechanism; wherein the first wireless frame includes first identification information, and the first identification information identifies communication parameter information of the first AP and the second AP under the Co-SR mechanism.
[0126] In UHR, to improve the transmission reliability and throughput of wireless networks, a Multi-AP Coordination mechanism is proposed. Through the cooperation between multiple Access Points (APs), the Multi-AP Coordination mechanism optimizes the allocation and use of network resources, effectively improving transmission efficiency, reducing interference, and improving coverage. The Multi-AP Coordination mechanism can flexibly adjust its working mode according to different needs to adapt to various network environments and transmission scenarios. Common Multi-AP Coordination mechanisms include but are not limited to TXOP-based with power control coordination mechanism (Co-SR: coordinated spatial reuse), coordinated beamforming mechanism (Co-BF), coordinated time division multiple access mechanism (Co-TDMA), coordinated real-time wireless transmission mechanism (Co-RTWT), etc. These Multi-AP Coordination mechanisms achieve coordination between multiple APs through different technical means, thereby improving the performance and efficiency of the network. However, although the existing Multi-AP Coordination mechanisms can reduce interference and improve resource utilization to some extent, when multiple APs work together, there are still challenges such as how to avoid excessive interference and how to optimize the cooperation between APs to achieve more efficient spatial reuse.
[0127] In the embodiments of the present disclosure, the first AP determines and sends a first wireless frame, and the first wireless frame is used to trigger a Co-SR mechanism. Specifically, the first AP can be a sharing TXOP access point device (Sharing AP) in the Co-SR mechanism. The Sharing AP not only coordinates with other APs, but also is responsible for communication with multiple associated devices (STAs) in the BSS. The second AP is an access point device (Shared AP) that receives the TXOP shared by the Sharing AP, and the second AP communicates with the associated STAs in the BSS in the TXOP. The first wireless frame can be a trigger frame (Trigger Frame). In the related art, the Sharing AP initiates the Co-SR mechanism through the Trigger frame, and the Trigger frame identifies the maximum number of spatial streams (Number of spatial streams, NSS) and some parameters of the Trigger frame, but these parameters cannot provide sufficient information to ensure coordination in multiple BSSs, so that the Co-SR mechanism cannot be smoothly implemented. Specifically, the lack of effective coordination makes it impossible to ensure that two APs can simultaneously send downlink physical layer protocol data units (Physical Protocol Data Unit, PPDU) to their associated STAs in at least two BSSs, which will increase communication interference and affect the transmission efficiency and throughput of the overall network.
[0128] In the embodiments of the present disclosure, the first wireless frame includes first identification information, and the first identification information identifies the communication parameter information of the first AP and the second AP under the Co-SR mechanism. It can be seen that, by including the communication parameter information of the first AP and the second AP under the Co-SR mechanism in the Trigger frame, the first AP and the second AP can share the communication parameter information under the Co-SR mechanism in real time, so as to ensure that multiple APs can work effectively in coordination, avoid interference caused by information asymmetry or poor coordination, and ultimately improve the transmission efficiency and throughput of the network.
[0129] In step 202, the first AP 101 sends the first wireless frame; correspondingly, the second AP 102 receives the first wireless frame.
[0130] In the embodiments of the present disclosure, the first AP sends the first wireless frame (for example, a Trigger frame) to start the Co-SR mechanism and coordinate the communication with the second AP. After receiving the first wireless frame, the second AP adjusts the cooperation with the first AP according to the communication parameter information carried in the first wireless frame, to ensure the smooth execution under the Co-SR mechanism. Through this process, the first AP and the second AP can efficiently share the necessary coordination information, ensure that multiple APs in multiple BSSs can work synchronously, avoid interference caused by improper coordination, and improve the overall transmission efficiency and throughput of the network.
[0131] In some embodiments, the first identification information includes at least one of the following:
[0132] The first identification bit identifies the bandwidth information of the Co-SR mechanism established by the first AP after obtaining the transmission opportunity TXOP.
[0133] The bandwidth information can be identified by a bandwidth (Bandwidth, BW) identification bit, which identifies the bandwidth range used by the first AP (Sharing AP) when initiating the Co-SR mechanism after obtaining the TXOP. The bandwidth information can be at least one of the following bandwidth values: 20MHz, 40MHz, 80MHz, 160MHz, 320MHz, etc. Among them, 20MHz bandwidth: suitable for environments with lower data transmission rate, usually used in poor channel conditions or more interference to ensure stable connection. 40MHz bandwidth: provides higher rate than 20MHz, suitable for relatively loose channel conditions, commonly used in environments with moderate interference. 80MHz bandwidth: suitable for environments with high data rate requirements, commonly used in good channel conditions, can provide higher throughput. 160MHz bandwidth: suitable for high-demand, high-speed data transmission environments, such as high-definition video streaming and large file transmission, suitable for use in good channel conditions. 320MHz bandwidth: used for very high rate communication, suitable for environments with very little interference and very superior network conditions, can support simultaneous transmission of a large amount of data. The selection of different bandwidth values can be flexibly adjusted according to the specific network environment, interference situation and transmission requirements. In the embodiments of the present disclosure, the bandwidth information is explicitly identified in the first identification information, so that the Sharing AP and the Shared AP can synchronously understand the bandwidth range used, thereby ensuring that the collaborative work under the Co-SR mechanism will not be disturbed due to bandwidth mismatch. This enables multiple APs to work more efficiently, rationally utilize bandwidth resources, and ensure that downlink PPDUs are simultaneously transmitted to associated STAs in multiple BSSs, ultimately improving the transmission efficiency, throughput and stability of the network.
[0134] a second identification bit, which identifies a first transmission power of the first AP for sending a downlink physical layer protocol data unit (PPDU) and / or a modulation and coding scheme (MCS) of a link under which the first AP sends the downlink PPDU.
[0135] The first identification information further includes a second identification bit, which identifies a first transmission power of the first AP for sending a downlink PPDU and / or a modulation and coding scheme (MCS) of a link under which the first AP sends the downlink PPDU. For example, the second identification bit can be identified by an AP transmission power information (Tx power) field, which indicates the transmission power used by the first AP (Sharing AP) when sending the downlink PPDU and / or the MCS of the link. The MCS scheme includes the number of spatial streams, the modulation scheme, the transmission power, etc. For example, in the MCS modulation and coding table, each MCS is an index corresponding to a transmission power value, which can be MCS0 to MCS17, etc. In addition, the transmission power value corresponding to the MCS is different under different frequency bands. Moreover, the MCS modulation and coding table has different contents under different frequency bands. For example, by explicitly identifying the transmission power and the MCS scheme for sending the downlink PPDU in the first wireless frame, the Sharing AP and the Shared AP can master the specific transmission power and modulation and coding parameters in real time. These information is crucial for avoiding signal interference and ensuring the collaborative work of multiple APs. Specifically, accurate transmission power control helps to reduce signal interference, improve the collaborative efficiency of multiple APs in the same frequency band, ensure that the APs in multiple BSSs can effectively synchronize and transmit data in parallel, and ultimately improve the throughput, transmission reliability and communication efficiency of the overall network.
[0136] a third identification bit, which identifies that the first AP initiates a Co-SR operation and / or transmission mode information of the Co-SR mechanism.
[0137] The third identification bit identifies that the first AP initiates a Co-SR operation and / or transmission mode information of the Co-SR mechanism. In some embodiments, the third identification bit can include a signal indicating that the first AP initiates the Co-SR operation, and further include an identification bit identifying that the transmission mode of the Co-SR operation is mode 1 or mode 2.
[0138] Specifically, there are different transmission modes under the Co-SR mechanism, especially in the case of supporting UHR and Extremely High Throughput (EHT) technology, the following two main modes are defined:
[0139] Mode 1 (Mode 1): In this mode, the content of the legacy signal (L-SIG) in the trigger frame is the same, but the content of the user signal (U-SIG) can be different. This mode is suitable for Co-SR transmission between UHR and EHT, EHT and UHR, or EHT and EHT. In this mode, no changes are required for non-UHR EHT devices.
[0140] Mode 2 (Mode 2): In this mode, the content of the L-SIG and U-SIG in the trigger frame is the same. This mode is only suitable for Co-SR transmission between UHR and UHR.
[0141] For the above two modes, whether it is Mode 1 or Mode 2, when performing Co-SR transmission, two physical layer protocol data units (PPDUs) will start and end at the same time. In addition, UHR PPDU can be used for Co-SR transmission in Mode 1 or Mode 2.
[0142] In the embodiments of the present disclosure, the design of the third identification bit can realize more efficient resource coordination when multiple APs work together by indicating the start of the Co-SR operation and the specific transmission mode (such as Mode 1 or Mode 2) adopted. Especially in the application scenario of UHR and EHT, the adaptation of different modes can ensure efficient operation of the network under different conditions. Specifically, the different applicability of Mode 1 and Mode 2 enables the system to flexibly select the appropriate transmission mode, avoid unnecessary conflicts, and ensure synchronization in multiple BSSs, thereby improving network transmission efficiency and reliability. In addition, by explicitly identifying these transmission modes, the system can optimize data transmission paths and power control, thereby further improving network throughput and reducing interference.
[0143] The fourth identification bit identifies the number of spatial streams (SS) used by the first AP under the Co-SR mechanism.
[0144] In the embodiments of the present disclosure, the fourth identification bit is used to identify the number of SS used by the first AP under the Co-SR mechanism. In the embodiments of the present disclosure, the identification domain of the number of spatial streams contains the number of spatial streams used by the first AP in the Co-SR process, and a maximum of 4 spatial streams is supported. The number of spatial streams determines the parallelism of data transmission, and increasing the number of spatial streams can improve the data transmission rate and the network throughput.
[0145] Specifically, in the Co-SR mechanism, by adjusting the number of spatial streams, the first AP can flexibly select the appropriate number of spatial streams according to the required transmission efficiency and network conditions. Common configurations include 2, 3, or 4 spatial streams, adapting to different transmission needs. In a network environment with a larger bandwidth, using more spatial streams helps improve overall transmission performance and reduce signal interference. Through the identification of the number of spatial streams, multiple APs can share relevant information, ensuring that network resources can be effectively utilized in the Co-SR process and avoiding signal conflicts caused by improper coordination.
[0146] In some embodiments, the first identification bit, the second identification bit, the third identification bit, and the fourth identification bit are carried in a common info field of the first wireless frame;
[0147] In some embodiments, the second identification bit is carried in a transmit power (Tx Power) information field of the common info field.
[0148] In the embodiments of the present disclosure, the first identification bit, the second identification bit, the third identification bit, and the fourth identification bit are carried in a common info field of the first wireless frame. Specifically, the second identification bit is specifically carried in a transmit power (Tx Power) information field in the common info field, for identifying the transmit power and related modulation and coding scheme (MCS) used by the sharing AP when sending a downlink PPDU. This structural design can enable the relevant information of different identification bits to be uniformly transmitted in the same wireless frame, simplifying the information carrying and processing procedures. By separately identifying the transmit power information and classifying it in the Tx Power information field, it helps to ensure that the APs can accurately synchronize the power and modulation parameters among each other when working cooperatively, avoiding communication interference or signal attenuation caused by inconsistent power or incorrect modulation parameters.
[0149] In some embodiments, the first transmit power is determined according to an interference signal value of the first AP perceived by a station device (STA) associated with the second AP; or,
[0150] The first transmit power is determined according to an interference signal value of the first AP perceived by a STA communicating with the first AP within the TXOP.
[0151] In the embodiments of the present disclosure, the first transmit power is determined according to an interference signal value perceived by a station device (STA) associated with the second AP (Shared AP) to the first AP (Sharing AP), or the first transmit power is determined according to an interference signal value perceived by a STA communicating with the first AP within the TXOP. This means that the signal transmitted by the Sharing AP can interfere with the STA associated with the Shared AP or the STA communicating with the Sharing AP within the same TXOP, and the strength of the interference signal determines how the Sharing AP adjusts its transmit power.
[0152] Specifically, when the signal transmitted by the Sharing AP interferes with the STA associated with the Shared AP, the Sharing AP needs to dynamically adjust its transmit power to minimize the interference to these STAs. The strength of the interference signal is usually perceived by the STA and the interference value is fed back to the Sharing AP. According to this feedback information, the Sharing AP can adjust its transmit power so that the signal strength remains within an acceptable range, avoiding excessive interference that leads to a decline in communication quality or signal collision.
[0153] The AP Tx Power information field carries feedback information related to the interference signal. Specifically, the information field identifies the interference signal value perceived by the STA associated with the Shared AP or the STA communicating with the Sharing AP, and adjusts the transmit power of the Sharing AP according to the information. This adjustment process can effectively reduce interference and ensure that communication between multiple STAs is not interfered with under the coordination mechanism between multiple APs, thereby improving the transmission efficiency and throughput of the overall network.
[0154] In some embodiments, the first identification information further includes at least one of:
[0155] The fifth identification bit identifies the second AP.
[0156] The fifth identification bit is used to distinguish different APs and ensure that the role and function of each AP is clear. In particular, in the process of Co-SR mechanism, the Sharing AP assigns a unique identification to the Shared AP when establishing a cooperative relationship with the Shared AP. The role of this identification bit is to clearly distinguish the Sharing AP and the Shared AP, and help the devices in the network identify their different roles and responsibilities in the Co-SR mechanism. For example, the Sharing AP is responsible for sharing the TXOP (Transmission Opportunity) to the Shared AP, while the Shared AP communicates with its associated STAs within the shared TXOP. By using the identification, the network can ensure that the responsibilities and behaviors of each AP in the Co-SR mechanism are correctly identified and executed, so as to achieve coordination and avoid confusion between different APs.
[0157] The sixth identification bit identifies the number of SSs used by the second AP when transmitting the downlink PPDU.
[0158] The SS information identifies the number of spatial streams used by the Shared AP in the downlink PPDU transmission process, which is usually the same as the parameter value identified by the SS number field in the common info domain. Through the sixth identification bit, the disclosure embodiments can help other devices in the network to clearly understand the number of spatial streams used by the Shared AP in downlink transmission, so as to ensure that multiple APs can effectively cooperate in the Co-SR mechanism, avoiding resource conflicts or transmission efficiency reduction. At the same time, through the clear identification of the number of spatial streams, the network can optimize resource allocation and improve transmission quality, ensuring that multiple APs will not reduce performance due to signal interference or resource conflicts when working together.
[0159] The seventh identification bit identifies the second transmission power of the second AP transmitting the downlink PPDU.
[0160] The power information carried by the seventh identification bit is used to indicate the transmission power adopted by the Shared AP in the downlink transmission process. It should be noted that the power information identified by the seventh identification bit may be consistent with the transmission power value identified by the Tx power information field in the common info domain, or there may be differences. The introduction of the transmission power information of the seventh identification bit in the disclosure embodiments can ensure that the transmission power of the Shared AP can be accurately adjusted in the Co-SR mechanism to reduce interference with other APs or STAs. By adjusting the transmission power according to the interference value, the signal coverage and quality in the wireless network can be effectively controlled, the resource allocation between different APs can be optimized, and the overall efficiency and throughput of the network can be improved. At the same time, the coordination between APs is ensured, and the performance problems caused by inconsistent power settings are avoided.
[0161] an eighth identification bit, indicating a modulation and coding scheme (MCS) used by the second AP (Shared AP) when sending a downlink physical layer protocol data unit (PPDU).
[0162] The eighth identification bit is used to indicate a modulation and coding scheme (MCS) used by the second AP (Shared AP) when sending a downlink physical layer protocol data unit (PPDU). Specifically, the information carried by the eighth identification bit indicates the modulation and coding scheme used by the Shared AP on the downlink, to control the rate and quality of data transmission.
[0163] In some embodiments, the fifth identification bit, the sixth identification bit, the seventh identification bit, and the eighth identification bit are carried in a user information (user info) field of the first wireless frame.
[0164] The seventh identification bit is carried in a Tx power information field of the user info field, and the eighth identification bit is carried in a MCS information field of the user info field.
[0165] In the embodiments of the present disclosure, the fifth identification bit, the sixth identification bit, the seventh identification bit, and the eighth identification bit are carried in a user information (user info) field of the first wireless frame. The seventh identification bit is carried in a Tx power information field, indicating the transmission power of the second AP when sending a downlink PPDU, and the eighth identification bit is carried in a MCS information field, indicating the modulation and coding scheme (MCS) used by the second AP when sending a downlink PPDU. Carrying these identification bits in the user information field helps to optimize the cooperation and resource management of multiple APs under the Co-SR mechanism. By concentrating key communication parameters such as transmission power and modulation scheme in the user info field, each AP can more efficiently share and coordinate communication information, reduce interference, and improve network transmission efficiency. At the same time, using the Tx power information field and the MCS information field can ensure that each AP selects appropriate power and modulation scheme when transmitting, so as to adapt to different channel environments, thereby improving the overall performance and reliability of the system.
[0166] In some embodiments, the second transmission power is determined according to an interference signal value of the second AP perceived by a STA associated with the first AP; or
[0167] The second transmission power is determined according to an interference signal value of the second AP perceived by a STA communicating with the second AP within the TXOP.
[0168] In the embodiments of the present disclosure, the second transmit power is determined according to an interference signal value of the second AP perceived by a STA associated with the first AP, or an interference signal value of the second AP perceived by a STA communicating with the second AP within the TXOP. Specifically, the adjustment of the transmit power of the second AP takes into account the interference signal value perceived by the STA associated with the first AP (or the STA communicating with the second AP within the same TXOP). These STAs can be interfered by the second AP, and therefore the transmit power needs to be adjusted according to the strength of the interference signals to minimize the impact of interference on communication quality.
[0169] In some embodiments, the method further comprises:
[0170] The second AP sends, to the first AP, an interference signal value of the first AP perceived by a STA associated with the second AP; correspondingly, the first AP receives the interference signal value of the first AP perceived by the STA associated with the second AP sent by the second AP.
[0171] In the embodiments of the present disclosure, the second AP needs to measure and record the interference signal value of the first AP perceived by the STA associated with the second AP. These signal values reflect the interference situation of the first AP to the communication environment of the second AP. Before the Co-SR mechanism occurs, the second AP sends these interference values to the first AP, so that the first AP can understand the interference situation before starting the shared transmission opportunity (TXOP), and adjust the parameter value size of the Tx power information field in the common info field as needed to reduce interference and optimize communication performance. Among them, the second AP can actively send these interference values to the first AP, or the first AP actively initiates an inquiry, so as to ensure that the second AP timely shares the relevant interference information. This information sharing mechanism ensures that the first AP can obtain real-time feedback about interference, so as to adjust its transmit power and other parameters and optimize the execution of the Co-SR mechanism. Through coordinated interference management, multiple APs can better cooperate to avoid interference between each other, improve the overall transmission efficiency and reliability of the network, and improve user experience.
[0172] In some embodiments, the interference signal value of the first AP is perceived by the STA during a null data packet announcement (NDPA) process; or,
[0173] The interference signal value of the first AP is perceived by the STA during a radio management (RM) process.
[0174] In the embodiments of the present disclosure, the interference signal value of the first AP is perceived by the STA in different wireless communication processes, including a Null Data Packet Announcement (NDPA) process and a Radio management (RM) process.
[0175] In the NDPA process, the STA associated with the second AP perceives the interference signal value from the first AP. This process is usually used to inform the STA whether it can send a data frame. In this process, the STA monitors the null data packet signal sent by the first AP and evaluates the interference level of the signal. In the RM process, the STA perceives the interference signal in the radio environment, including the interference signal from the first AP. In these processes, the second AP (i.e., the shared AP) needs to send the interference signal value of the first AP perceived by the STA associated with it to the first AP (i.e., the sharing AP) before the Co-SR mechanism is started. This can be achieved by the second AP actively sending the interference value, or by the first AP actively initiating a query. This interference signal sharing mechanism allows the first AP to obtain information about potential interference in its network before starting the Co-SR mechanism. By obtaining the interference signal in advance, the first AP can reasonably adjust its parameters (such as transmission power, channel selection, etc.) during transmission, effectively reducing interference and optimizing communication quality. Such real-time information exchange improves the efficiency of multi-AP cooperation, reduces conflicts and interference in communication, and thus improves the overall network performance.
[0176] In some embodiments, the names of information, etc. are not limited to the names described in the embodiments, and the terms "information", "message", "signal", "signaling", "report", "configuration", "indication", "instruction", "command", "channel", "parameter", "domain", "field", "symbol", "symbol", "codebook", "codeword", "code point", "bit", "data", "program", "chip", etc. can be replaced with each other.
[0177] In some embodiments, the terms "moment", "point in time", "time", "time position" and the like can be replaced with each other, and the terms "duration", "time period", "time window", "window", "time" and the like can be replaced with each other.
[0178] In some embodiments, the terms "wireless access scheme", "waveform" and the like can be replaced with each other.
[0179] In some embodiments, the terms "certain", "preseted", "preset", "set", "indicated", "certain", "arbitrary", "first" and the like can be replaced with each other, and "certain A", "preset A", "preset A", "set A", "indicated A", "certain A", "arbitrary A", "first A" can be interpreted as A specified in advance in a protocol or the like, or can be interpreted as A obtained by setting, configuring, or indicating, or can be interpreted as certain A, certain A, arbitrary A, or first A, but not limited thereto.
[0180] In some embodiments, the determination or judgment can be made by a value represented by 1 bit (0 or 1), or by a true or false value (Boolean value) represented by true or false, or by comparison of numerical values (for example, comparison with a predetermined value), but not limited thereto.
[0181] In some embodiments, "not expected to receive" can be interpreted as not receiving in the time domain resource and / or the frequency domain resource, or can be interpreted as not performing subsequent processing on the data or the like after receiving the data or the like; "not expected to send" can be interpreted as not sending, or can be interpreted as sending but not expecting the receiver to respond to the content of the sending.
[0182] The communication method related to the embodiments of the present disclosure can include step 201 or step 202. For example, step 201 can be implemented as an independent embodiment, step 202 can be implemented as an independent embodiment, step 201+202 can be implemented as an independent embodiment, but not limited thereto.
[0183] In some embodiments, reference can be made to each step and its optional implementation manner in other embodiments described before or after the specification corresponding to the present embodiment, and other related parts in the specification, which will not be repeated here.
[0184] FIG. 3 is one of the flow diagrams of the communication method according to the embodiments of the present disclosure.
[0185] As shown in FIG. 3, the above method can be applied to the first AP 101, and the above method includes:
[0186] Step 301, determining a first wireless frame; the first wireless frame is used to trigger a transmission opportunity based power control coordination Co-SR mechanism;
[0187] The first wireless frame includes first identification information, and the first identification information identifies communication parameter information of the first AP and a second AP under the Co-SR mechanism.
[0188] Step 302, sending the first wireless frame.
[0189] Optionally, in the embodiment of the present disclosure, the first identification information includes at least one of the following:
[0190] A first identification bit identifies bandwidth information of the Co-SR mechanism established by the first AP after obtaining a transmission opportunity TXOP;
[0191] A second identification bit identifies a first transmission power of a downlink physical layer protocol data unit PPDU sent by the first AP and / or a modulation and coding MCS under a link where the downlink PPDU is sent by the first AP;
[0192] A third identification bit identifies that the first AP initiates a Co-SR operation and / or transmission mode information of the Co-SR mechanism;
[0193] A fourth identification bit identifies a number of spatial streams SS used by the first AP under the Co-SR mechanism.
[0194] Optionally, in the embodiment of the present disclosure, the first identification bit, the second identification bit, the third identification bit, and the fourth identification bit are carried in a common info field of the first wireless frame.
[0195] The second identification bit is carried in a transmission power Tx power information field of the common info field.
[0196] Optionally, in the embodiment of the present disclosure, the first transmission power is determined according to an interference signal value of the first AP perceived by a station device STA associated with the second AP; or,
[0197] The first transmission power is determined according to an interference signal value of the first AP perceived by a STA in communication with the first AP within the TXOP.
[0198] Optionally, in the embodiment of the present disclosure, the first identification information further includes at least one of the following:
[0199] A fifth identification bit identifies the second AP;
[0200] a sixth identification bit, indicating a number of SSs used by the second AP when transmitting the downlink PPDU;
[0201] a seventh identification bit, indicating a second transmit power used by the second AP when transmitting the downlink PPDU;
[0202] an eighth identification bit, indicating an MCS used by the second AP when transmitting the downlink PPDU.
[0203] Optionally, in embodiments of the present disclosure, the fifth identification bit, the sixth identification bit, the seventh identification bit, and the eighth identification bit are carried in a user info field of the first wireless frame.
[0204] Optionally, in embodiments of the present disclosure, the seventh identification bit is carried in a Tx power information field of the user info field, and the eighth identification bit is carried in an MCS information field of the user info field.
[0205] Optionally, in embodiments of the present disclosure, the second transmit power is determined according to an interference signal value of the second AP perceived by a STA associated with the first AP; or,
[0206] the second transmit power is determined according to an interference signal value of the second AP perceived by a STA communicating with the second AP within the TXOP.
[0207] Optionally, in embodiments of the present disclosure, the method further comprises:
[0208] receiving an interference signal value of the first AP perceived by a STA associated with the second AP and transmitted by the second AP.
[0209] The communication method related to embodiments of the present disclosure can comprise at least one of step 301 or step 302. For example, step 301 can be implemented as an independent embodiment, step 302 can be implemented as an independent embodiment, and step 301+302 can be implemented as an independent embodiment, but the present disclosure is not limited thereto.
[0210] In some embodiments, reference can be made to the steps and optional implementation manners thereof in other embodiments described before or after the description of the present embodiment, and other related parts in the description, which will not be repeated here.
[0211] FIG. 4 is a flow diagram of a communication method according to embodiments of the present disclosure.
[0212] As shown in FIG. 4, the above method can be applied to the second AP 101, and the above method comprises:
[0213] Step 401, receiving a first wireless frame; the first wireless frame is used to trigger a Co-SR mechanism;
[0214] The first wireless frame includes first identification information, and the first identification information identifies communication parameter information of the first AP and the second AP in the Co-SR mechanism.
[0215] Step 402, sending, to the first AP, an interference signal value of the first AP perceived by a STA associated with the second AP.
[0216] Optionally, in the embodiments of the present disclosure, the interference signal value of the first AP is perceived by the STA in a null data packet announcement (NDPA) process; or,
[0217] The interference signal value of the first AP is perceived by the STA in a radio management (RM) process.
[0218] The communication method related to the embodiments of the present disclosure can include step 401 or step 402. For example, step 401 can be implemented as an independent embodiment, step 402 can be implemented as an independent embodiment, and step 401+402 can be implemented as an independent embodiment, but is not limited thereto.
[0219] In some embodiments, reference can be made to the steps and optional implementation manners thereof in other embodiments described before or after the description of the present embodiment, and other related parts in the description, which will not be repeated here.
[0220] In some embodiments, the related art defines the maximum number of SS and some parameters of the Trigger frame, but these parameters cannot support Co-SR, and more complete parameters carried by the Trigger frame need to be defined to enable Co-SR in at least two BSSs, that is, in two BSSs, the AP can simultaneously send a downlink PPDU to at least one STA associated therewith.
[0221] In some embodiments, the sharing AP sends a Trigger frame, where the Trigger frame can be a basic Trigger frame, and the Trigger frame includes at least one of the following:
[0222] BW identification bits, which identify bandwidth information of the sharing AP initiating Co-SR after obtaining a TXOP in this bandwidth, where the BW can be 20 MHz, 40 MHz, 80 MHz, 160, and 320 MHz;
[0223] AP Tx power information field (related to the interference value of the sharing AP received by the STA associated with the sharing AP (or the STA communicating in this TXOP)), which identifies the transmission power and MCS mode used by the sharing AP to send the downlink PPDU;
[0224] Bit 1, which identifies that the sharing AP initiates the Co-SR operation, and further, bit 2, which identifies that the initiated operation is mode 1 or mode 2 Co-SR operation;
[0225] SS number field, which identifies the number of SS used in the Co-SR process, and the maximum is 4;
[0226] The above-mentioned identification bits can be included in the common info field.
[0227] In some embodiments, the Trigger frame further includes at least one of the following:
[0228] The user info field, which includes the identification of the shared AP, which is assigned by the sharing AP to the shared AP in the process of establishing the Co-SR with the shared AP; includes SS information, which identifies the number of SS used by the shared AP to send the DL PPDU, which is generally consistent with the foregoing; includes Tx power, which identifies the power information used by the shared AP to send the DL PPDU (related to the interference value of the shared AP received by the STA associated with the sharing AP (or the STA communicating in this TXOP)), which can be inconsistent with the parameter value of the Tx power information field in the common info field, or can be consistent; can include the MCS information field, which identifies the MCS mode used to send the DL PPDU.
[0229] In some embodiments, the shared AP needs to send the interference value of the sharing AP perceived by the STA associated with the sharing AP (or the STA communicating in this TXOP) in the measurement process (such as the NDPA process or the beacon Request (RM: Radio management)) to the sharing AP before the Co-SR occurs, which can be initiated by the shared AP or inquired by the sharing AP.
[0230] The embodiments of the present disclosure further provide a device (which can also be referred to as a communication device, etc.) for implementing any of the above methods. For example, a device is provided, which includes units or modules for implementing the steps performed by a terminal in any of the above methods. For another example, another device is provided, which includes units or modules for implementing the steps performed by a network device (such as an access network device, a core network functional node, a core network device, etc.) in any of the above methods.
[0231] It should be understood that the division of units or modules in the above device is only a logical functional division, and all or part of the units or modules can be integrated into one physical entity, or can be physically separated. In addition, the units or modules in the device can be implemented in the form of processor invoking software: for example, the device includes a processor, a memory connected to the processor, and the memory stores instructions, and the processor invokes the instructions stored in the memory to implement any of the above methods or to implement the functions of the units or modules of the device, where the processor is, for example, a general 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 circuit, and the functions of part or all of the units or modules can be implemented by the design of the hardware circuit, and the hardware circuit can be understood as one or more processors; for example, in one implementation, the hardware circuit is an application-specific integrated circuit (ASIC), and the functions of part or all of the units or modules are implemented by the design of the logical relationship between the elements in the circuit; for another example, in another implementation, the hardware circuit is a programmable logic device (PLD), and 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 a configuration file, so as to implement the functions of part or all of the units or modules. All units or modules of the above device can be implemented in the form of processor invoking software, or all units or modules can be implemented in the form of hardware circuit, or part of the units or modules are implemented in the form of processor invoking software, and the remaining part is implemented in the form of hardware circuit.
[0232] In embodiments 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 running capability, such as a central processing unit (CPU), a microprocessor, a graphics processing unit (GPU) (which can be understood as a microprocessor), a digital signal processor (DSP), or the like. In another implementation, the processor can implement certain functions through a logical relationship of hardware circuits, and the logical relationship of the hardware circuits is fixed or can be reconfigured. For example, the processor is a hardware circuit implemented by an application-specific integrated circuit (ASIC) or a programmable logic device (PLD), such as an FPGA. In the reconfigurable hardware circuit, the processor loads a configuration document to implement the configuration of the hardware circuit. It can be understood that the processor loads instructions to implement the functions of the above part or all 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), or the like.
[0233] FIG. 5 is a structural schematic diagram of a first AP according to an embodiment of the present disclosure. The first AP is configured to perform any of the above methods. In some embodiments, as shown in FIG. 5, the first AP 500 can include at least one of a determination module 501, a sending module 502, and the like.
[0234] In some embodiments, the determination module 501 is configured to determine a first wireless frame. The first wireless frame is configured to trigger a transmission opportunity-based power control coordination Co-SR mechanism. The first wireless frame includes first identification information. The first identification information is configured to identify communication parameter information of the first AP and a second AP in the Co-SR mechanism. The sending module 502 is configured to send the first wireless frame.
[0235] Optionally, the determination module 501 is configured to perform at least one of the communication steps (for example, steps 201 and 301, but not limited thereto) performed by the first AP 101 in any of the above methods. Details are not described herein again. The sending module 502 is configured to perform steps 202 and 302.
[0236] In some embodiments, the determining module can be replaced by the processing module or the processor, and the sending module can be replaced by the transceiver module or the transceiver.
[0237] Figure 6 is a schematic diagram of the structure of the second AP proposed in an embodiment of this disclosure. The second AP is used to perform any of the above methods. In some embodiments, as shown in Figure 6, the second AP 600 may include a receiving module 601.
[0238] In some embodiments, the receiving module 601 is configured to receive a first radio frame; the first radio frame is configured to trigger the Co-SR mechanism.
[0239] The first wireless frame includes first identification information, which identifies the communication parameter information between the first AP and the second AP under the Co-SR mechanism.
[0240] Optionally, the receiving module 601 is used to perform at least one of the communication steps (such as step 202, step 401, but not limited thereto) performed by the second AP 102 in any of the above methods, which will not be described in detail here.
[0241] In some embodiments, the receiving module can be interchanged with the transceiver module or transceiver.
[0242] Figure 7 is a schematic diagram of the structure of a terminal 700 (e.g., a user equipment) proposed in an embodiment of this disclosure. The terminal 700 may be a chip, chip system, or processor that supports network devices in implementing any of the above methods, or it may be a chip, chip system, or processor that supports a terminal in implementing any of the above methods. The terminal 700 can be used to implement the methods described in the above method embodiments; for details, please refer to the descriptions in the above method embodiments.
[0243] As shown in Figure 7, terminal 700 includes one or more processors 701. Processor 701 can be a general-purpose processor or a dedicated processor, such as a baseband processor or a central processing unit (CPU). The baseband processor can be used to process communication protocols and communication data, while the CPU can be used to control communication devices (e.g., base stations, baseband chips, terminal devices, terminal device chips, DUs or CUs, etc.), execute programs, and process program data. Terminal 700 is used to execute any of the above methods.
[0244] In some embodiments, terminal 700 further includes one or more memories 702 for storing instructions. Optionally, all or part of the memories 702 may be located outside of terminal 700.
[0245] In some embodiments, the terminal 700 further includes one or more transceivers 704. When the terminal 700 includes one or more transceivers 704, the transceivers 704 perform at least one of the communication steps such as sending and / or receiving in the above method (e.g., steps 202, 302, 401, 402, but not limited thereto), and the processor 701 performs at least one of other steps (e.g., steps 201, 301, but not limited thereto).
[0246] In some embodiments, a transceiver may include a receiver and / or a transmitter, which may be separate or integrated. Optionally, the terms transceiver, transceiver unit, transceiver, transceiver circuit, etc., may be used interchangeably; the terms transmitter, transmitting unit, transmitter, transmitting circuit, etc., may be used interchangeably; and the terms receiver, receiving unit, receiver, receiving circuit, etc., may be used interchangeably.
[0247] In some embodiments, terminal 700 may include one or more interface circuits 703. Optionally, interface circuit 703 is connected to memory 702, and interface circuit 703 can be used to receive signals from memory 702 or other devices, and can be used to send signals to memory 702 or other devices. For example, interface circuit 703 can read instructions stored in memory 702 and send the instructions to processor 701.
[0248] The terminal 700 described in the above embodiments may be a user equipment or other communication device, but the scope of the terminal 700 described in this disclosure is not limited thereto, and the structure of the terminal 700 may not be limited to FIG. 7. The communication device may be an independent device or a part of a larger device. For example, the communication device may be: (1) an independent integrated circuit IC, or chip, or chip system or subsystem; (2) a set of one or more ICs, optionally, the IC set may also include storage components 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, terminal device, smart terminal device, cellular phone, wireless device, handheld device, mobile unit, vehicle device, network device, cloud device, artificial intelligence device, etc.; (6) others, etc.
[0249] Figure 8 is a schematic diagram of the structure of the chip 800 proposed in an embodiment of this disclosure. For cases where the terminal 700 can be a chip or a chip system, please refer to the schematic diagram of the chip 800 shown in Figure 8, but it is not limited thereto.
[0250] Chip 800 includes one or more processors 801, which are used to perform any of the above methods.
[0251] In some embodiments, chip 800 further includes one or more 803s. Optionally, interface circuitry 803 is connected to memory 802, and interface circuitry 803 can be used to receive signals from memory 802 or other devices, and interface circuitry 803 can be used to send signals to memory 802 or other devices. For example, interface circuitry 803 can read instructions stored in memory 802 and send the instructions to processor 801.
[0252] In some embodiments, the interface circuit 803 performs at least one of the communication steps such as sending and / or receiving in the above method (e.g., steps 202, 302, 401, 402, but not limited thereto), and the processor 801 performs at least one of other steps (e.g., steps 201, 301, but not limited thereto).
[0253] In some embodiments, the terms interface circuit, interface, transceiver pin, transceiver, etc., can be used interchangeably.
[0254] In some embodiments, chip 800 further includes one or more memories 802 for storing instructions. Optionally, all or part of the memories 802 may be located outside of chip 800.
[0255] This disclosure also proposes a storage medium storing instructions that, when executed on a terminal 700, cause the terminal 700 to perform any of the methods described above. Optionally, the storage medium is an electronic storage medium. Optionally, the storage medium is a computer-readable storage medium, but not limited thereto; it may also be a storage medium readable by other devices. Optionally, the storage medium may be a non-transitory storage medium, but not limited thereto; it may also be a temporary storage medium.
[0256] This disclosure also proposes a program product that, when executed by terminal 700, causes terminal 700 to perform any of the above methods. Optionally, the program product is a computer program product.
[0257] This disclosure also proposes a computer program that, when run on a computer, causes the computer to perform any of the above methods.
Claims
1. A communication method applied to a first access point device (AP), characterized in that, include: Determine the first radio frame; the first radio frame is used to trigger the opportunity-based power control coordination (Co-SR) mechanism. The first wireless frame includes first identification information, which identifies the communication parameter information between the first AP and the second AP under the Co-SR mechanism. Send the first wireless frame.
2. The communication method according to claim 1, characterized in that, The first identification information includes at least one of the following: The first identifier bit identifies the bandwidth information of the first AP after obtaining a transmission opportunity (TXOP) to establish the Co-SR mechanism; The second identifier bit identifies the first transmit power of the downlink physical layer protocol data unit (PPDU) transmitted by the first AP and / or the modulation and coding scheme (MCS) of the link where the downlink PPDU is transmitted by the first AP. The third identifier bit identifies the Co-SR operation initiated by the first AP and / or the transmission mode information of the Co-SR mechanism; The fourth identifier indicates the number of spatial streams (SS) used by the first AP under the Co-SR mechanism.
3. The communication method according to claim 2, characterized in that, The first identifier bit, the second identifier bit, the third identifier bit, and the fourth identifier bit are carried in the common info field of the first radio frame; The second identifier is carried in the transmit power (Tx power) information field of the common info field.
4. The communication method according to claim 2 or 3, characterized in that, The first transmit power is determined based on the interference signal value of the first AP sensed by the site equipment STA associated with the second AP; or, The first transmit power is determined based on the interference signal value of the first AP sensed by the STA communicating with the first AP within the TXOP.
5. The communication method according to any one of claims 1 to 4, characterized in that, The first identification information also includes at least one of the following: The fifth identifier bit identifies the second AP; The sixth identifier bit indicates the number of SS used by the second AP when sending downlink PPDU; The seventh identifier bit indicates the second transmit power of the downlink PPDU transmitted by the second AP; The eighth identifier bit identifies the MCS under the link where the second AP sends downlink PPPDU.
6. The communication method according to claim 5, characterized in that, The fifth, sixth, seventh, and eighth identifier bits are carried in the user info field of the first radio frame; The seventh identifier is carried in the Tx power information field of the user info field; the eighth identifier is carried in the MCS information field of the user info field.
7. The communication method according to claim 5 or 6, characterized in that, The second transmit power is determined based on the interference signal value of the second AP sensed by the STA associated with the first AP; or, The second transmit power is determined based on the interference signal value of the second AP sensed by the STA communicating with the second AP.
8. The communication method according to any one of claims 1 to 7, characterized in that, The method further includes: Receive the interference signal value of the first AP sent by the second AP, which is sensed by the STA associated with the second AP.
9. A communication method applied to a second AP, characterized in that, include: Receive the first wireless frame; The first radio frame is used to trigger the Co-SR mechanism; The first wireless frame includes first identification information, which identifies the communication parameter information between the first AP and the second AP under the Co-SR mechanism.
10. The communication method according to claim 9, characterized in that, The method further includes: The interference signal value of the first AP, as perceived by the STA associated with the second AP, is sent to the first AP.
11. The communication method according to claim 10, characterized in that, The interference signal value of the first AP is the value sensed by the STA during the NDPA (No Data Packet Announcement) process; or, The interference signal value of the first AP is the value sensed by the STA during the radio management (RM) process.
12. A communication device, wherein the communication device is a first access point (AP), characterized in that, include: One or more processors; The first AP is used to perform the communication method according to any one of claims 1 to 8.
13. A communication device, wherein the communication device is a second AP, characterized in that, include: One or more processors; The second AP is used to perform the communication method according to any one of claims 9 to 11.
14. A communication system, characterized in that, Including the first AP and the second AP; Wherein, the first AP determines the first radio frame; the first radio frame is used to trigger the Co-SR (Co-Signal Power Control) mechanism based on transmission opportunities; wherein, the first radio frame includes first identification information, the first identification information identifying: communication parameter information between the first AP and the second AP under the Co-SR mechanism; and the first radio frame is sent. The second AP receives a first radio frame; the first radio frame is used to trigger the Co-SR mechanism; wherein, the first radio frame includes first identification information, the first identification information identifying: communication parameter information between the first AP and the second AP under the Co-SR mechanism.
15. A storage medium storing instructions, characterized in that, When the instruction is executed on the communication device, the communication device performs the communication method as described in any one of claims 1 to 8, or performs the communication method as described in any one of claims 9 to 11.
16. A program product comprising at least one of a program and instructions, characterized in that, When at least one of the programs or instructions is executed by a communication device, it implements the communication method of any one of claims 1 to 8, or the communication method of any one of claims 9 to 11.