Position and angle combined sensing method based on sensing auxiliary communication

Abstract

The invention discloses a position and angle combined sensing method based on sensing auxiliary communication. The method comprises the following steps: an AP (Access Point) interactively explicitly acquires a working beam pair based on position and angle combined sensing through a control frame; the STA interactively explicitly acquires a working beam pair based on position and angle joint sensing through a control frame; and the AP and the STA implicitly initiate a sensing process without interaction of the control frame. According to the invention, the sensed position and angle information can be utilized to assist the millimeter wave to perform beam selection, and when at least one of the position or the angle of the STA changes, the working beam pair can be adjusted based on the sensed information, so that the communication performance of the millimeter wave WLAN is improved.

Description

Technical Field

[0001] The present invention belongs to the field of network technology, and particularly relates to a method for joint perception of position and angle based on perception-assisted communication. Background Art

[0002] WLAN (Wireless Local Area Network) refers to the general term for wireless networks covering a local area, and its typical representative is Wi-Fi. WLAN has become a core part of our daily work and life. With the booming development of emerging fields such as the Internet of Things, remote work, virtual reality, and smart homes, the application scope of WLAN is also constantly expanding. Together with mobile cellular networks, WLAN has become one of the two major pillars of current and future wireless communications. As the role of WLAN becomes increasingly important, emerging services have also put forward more stringent requirements for the performance of WLAN. For example, high-definition video and cloud services require the network to be able to handle a large amount of data, while online games and virtual reality require the network to have extremely low latency to ensure a high-quality user experience. Future WLANs are expected to face challenges such as high-density deployment and rapid node movement, which require the network to have greater bandwidth, lower latency, and stronger anti-interference capabilities. Driven by these demands for high-throughput and low-latency services, millimeter-wave WLAN technology has begun to receive great attention from the academic and industrial communities. Since millimeter-wave WLAN, IEEE 802.11ad / ay, operates in the 60 GHz band and can provide extremely high transmission rates and huge bandwidths, it is expected to provide strong support for the low-latency and high-throughput services of the next-generation WLAN.

[0003] In the IEEE 802.11ad / ay standard, the concept of Personal Basic Service Set (PBSS) is proposed. As Figure 1As shown, the PBSS is managed by a central control node, namely the PBSS Control Point (PCP), which is also referred to as the PCP / AP. The function of the PCP / AP is similar to that of an access point (AP) in a traditional low-frequency WLAN. It provides frame broadcasting, time synchronization, and access services for all nodes within the PBSS by sending directional Beacon frames. The PBSS contains one PCP / AP and multiple non-PCP nodes. These non-PCP nodes are functionally similar to stations (STAs) in a low-frequency WLAN and are also known as Directional Multi-gigabit (DMG) STAs or non-PCP / non-AP / STAs. Inside the PBSS, all nodes can communicate in a manner similar to an ad-hoc network.

[0004] To resist the extremely high attenuation in the 60GHz band, it is necessary to use directional beams to concentrate energy in a certain direction to improve the coverage of the link. IEEE 802.11ad / ay extended the function of the traditional WLAN beacon frame and defined the Beacon Interval (BI) structure. The BI structure is as Figure 2 shown, including the Beacon Header Interval (BHI) and the Data Transmission Interval (DTI). The BHI phase consists of three main sub-phases: the Beacon Transmission Interval (BTI), the Associated-Beamforming Training (A-BFT), and the Announce Transmission Interval (ATI). In the BTI phase, the PCP / AP broadcasts DMG beacon frames to DMG STAs, sending them through different sectors to transmit phase information and perform a scan of the sectors from which the PCP / AP sends. The A-BFT phase involves multiple communications between the DMG STAs and the PCP / AP, aiming to complete the sector scan of the STA. The ATI phase is for the PCP / AP to exchange information with the STAs that have associated and completed beam training in preparation for the upcoming DTI. In the DTI phase, the main activity is data transmission.

[0005] IEEE 802.11ad / ay supports a hybrid access mechanism, including two access mechanisms: random competition and dynamic channel time allocation. In DTI, it is embodied as the Contention-Based Access Period (CBAP) and the Service Period (SP). In the CBAP phase, the Enhanced Distributed Channel Access (EDCA) mechanism is used to compete for the channel, and in the SP phase, the channel is accessed in a contention-free scheduling manner.

[0006] In recent years, the Integrated Sensing and Communication (ISAC) technology has become a hot research direction in the field of wireless communication, attracting the attention of many experts and scholars. The core goal of ISAC technology is to integrate the communication system and the sensing system, and through communication-assisted sensing and sensing-assisted communication, to achieve the coexistence and mutual benefit of the two. In the application scenarios of the next-generation wireless local area network, the requirements for the quality of wireless connection and sensing accuracy are increasing day by day. Therefore, the role of sensing technology in the next-generation WLAN will become crucial. Sensing technology may no longer be only an auxiliary function of communication, but become one of the inherent functions of the next-generation WLAN. By using sensing-assisted communication, it is expected to further improve the overall performance of the communication system.

[0007] To make full use of the advantages of sensing-assisted communication, the Wi-Fi Alliance and the IEEE 802.11 working group jointly proposed a new Wi-Fi sensing standard - IEEE 802.11bf. This standard can use Wi-Fi signals to detect the target characteristics in the environment, including measuring distance, speed, angle, and target detection, etc. In this way, ISAC technology can not only improve communication efficiency, but also enhance the sensing ability of the network, bringing more possibilities and application scenarios for future wireless communication networks.

[0008] The existing technology has proposed a sensing-assisted communication technology based on location awareness. When a data packet arrives at the MAC layer queue and is ready to be sent, different processes are carried out according to different situations. If only the sender has the location awareness ability, the sender makes a decision on the working beam pair based on the location awareness result and indicates the receiving beam of the receiver in the transmitted PPDU (PHY Protocol Data Unit) Figure 3 (a). If only the receiver has the location awareness ability, a set of RTS (Request to Send) / CTS (Clear to Send) frame interactions need to be carried out in advance to obtain the optimal working beamFigure 3 (b))

[0009] The prior art of perception-assisted communication only assists communication by perceiving location information. However, in scenarios where both the location and angle of a node change, relying solely on location for perception will lead to a decline in system performance.

[0010] For the location-only perception mode, within a BI, if the node rotates, and communication is still carried out using the best beam pair before rotation at this location, the selected beam pair is not the optimal beam pair in the actual situation. Similarly, it will also cause a decrease in RSSI, leading to an increase in the packet loss rate and affecting the performance of the system. As Figure 4 shown. When not rotated on the left, since the location can be perceived, the beam switches from (1, 4) to (3, 2), and normal communication can be carried out at this time. However, if the node rotates, as shown on the right, communication should be carried out using the (3, 1) beam pair. But due to the lack of support for rotational perception, the transceiver will communicate using the (3, 2) beam pair determined by only using location perception, and packet loss may occur at this time. Summary of the Invention

[0011] To overcome the deficiencies of the prior art, the present invention provides a method for joint location and angle perception based on perception-assisted communication, including that the AP explicitly obtains the working beam pair for joint location and angle perception through control frame interaction; the STA explicitly obtains the working beam pair for joint location and angle perception through control frame interaction; the AP and the STA implicitly initiate the perception process without control frame interaction. The present invention can utilize the perceived location and angle information to assist millimeter-wave beam selection. When at least one of the location or angle of the STA changes, the working beam pair can be adjusted based on the perceived information, thereby improving the communication performance of millimeter-wave WLAN.

[0012] The technical solutions adopted by the present invention to solve its technical problems are as follows:

[0013] Step 1: The AP explicitly obtains the working beam pair for joint location and angle perception through control frame interaction;

[0014] Step 1-1: When the AP obtains the channel usage right and meets the perception trigger condition, the AP sends a perception trigger frame to the STA; the role of the perception trigger frame is to require the target STA to report the angle perception information of the target STA to the AP;

[0015] The perception trigger condition is one or a combination of the following conditions. When it is a combination of multiple conditions, it can be considered satisfied if any one of them is met, or it can only be considered satisfied if all conditions are met:

[0016] (1) The AP triggers the sensing process periodically with a period of T. When the time duration T has passed since the last sensing process;

[0017] (2) The AP fails to send packets to the target STA continuously for M times;

[0018] (3) Within a time window tw, the packet loss rate of the AP sending packets to the target STA is greater than the threshold λ;

[0019] (4) When the AP detects that the received energy value of the packet sent by the target STA is lower than the preset threshold β;

[0020] (5) When the AP successfully accesses the channel for the first time in any SP phase or CBAP phase;

[0021] Step 1 - 2: After receiving the sensing trigger frame sent by the AP, the target STA replies with a sensing report frame to the AP after an SIFS duration; the function of the sensing report frame is for the target STA to report its angle sensing result;

[0022] Step 1 - 3: After receiving the sensing report frame sent by the target STA, the AP records the angle sensing information of the target STA; combines the angle sensing information with the position sensing information of the AP for the target STA to obtain the working beam pair information based on joint position and angle sensing;

[0023] The working beam pair information refers to the beam numbers used by the AP and the target STA respectively when sending and receiving; after an SIFS duration after receiving the sensing report frame sent by the target STA, the AP sends a sensing response frame to the target STA, and the function of the sensing response frame is to notify the target STA of the working beam pair information; after sending the sensing response frame, the AP uses the working beam pair when communicating with the target STA;

[0024] Step 1 - 4: After receiving the sensing response frame sent by the AP, the target STA records the working beam pair information and uses the working beam pair when communicating with the AP.

[0025] Step 2: The STA explicitly obtains the working beam pair based on joint position and angle sensing through control frame interaction;

[0026] Step 2 - 1: When the STA obtains the channel access right and meets the sensing trigger conditions, it sends a sensing request frame to the AP; the angle sensing information of the STA itself is carried in the sensing request frame, and the function of sending the sensing request frame is to request the AP to feedback the working beam pair information based on joint position and angle sensing; the working beam pair information refers to the beam numbers used by the AP and the target STA respectively when sending and receiving;

[0027] The perception trigger condition is one or a combination of more than one of the following conditions. When it is a combination of multiple conditions, it can be considered satisfied if any one of them is met, or it can be considered satisfied only when all conditions are met:

[0028] (1) The STA triggers the perception process regularly with a period of T. When the time elapsed since the last perception process is T;

[0029] (2) The STA fails to send packets to the AP continuously for M times;

[0030] (3) Within a time window tw, the packet loss rate of the STA sending packets to the AP is greater than the threshold λ;

[0031] (4) When the STA detects that the received energy value of the packet sent by the AP is lower than the preset threshold β;

[0032] (5) When the STA successfully accesses the channel for the first time in any SP phase or CBAP phase;

[0033] Step 2-2: After receiving the perception request frame sent by the STA, the AP records the angle perception information of the target STA; combines the angle perception information with the position perception information of the STA by the AP to obtain the working beam pair information based on joint position and angle perception; the working beam pair information refers to the beam numbers used by the AP and the target STA when sending and receiving respectively; after the SIFS duration after receiving the perception report frame sent by the target STA, the AP sends a perception response frame to the target STA, and the role of the perception response frame is to notify the STA of the working beam pair information; after sending the perception response frame, the AP and the STA use the working beam pair for communication;

[0034] Step 2-3: After receiving the perception response frame sent by the AP, the STA records the working beam pair information and uses the working beam pair for communication with the AP;

[0035] Step 3: The AP and the STA implicitly initiate the perception process without interacting through control frames;

[0036] Step 3-1: When the STA meets the perception trigger condition, the STA can carry its own angle perception information in the data frame or ACK; if it is a downlink data transmission, the AP sends a data frame to the STA, so the STA carries its own angle perception information in the ACK frame; if it is an uplink data transmission, the STA sends a data frame to the AP, so the STA carries its own angle perception information in the data frame;

[0037] The perception trigger condition is one or a combination of more than one of the following conditions. When it is a combination of multiple conditions, it can be considered satisfied if any one of them is met, or it can be considered satisfied only when all conditions are met:

[0038] (1) The STA periodically triggers the sensing process at a period of T. When the time duration since the last sensing process has passed T;

[0039] (2) The STA fails to send packets to the AP continuously for M times;

[0040] (3) Within a time window tw, the packet loss rate of the STA sending packets to the AP is greater than the threshold λ;

[0041] (4) When the STA detects that the received energy value of the packet sent by the AP is lower than the preset threshold β;

[0042] Step 3-2: After the AP receives the angle sensing information carried in the data frame or ACK sent by the STA, record the angle sensing information of the target STA; Combine the angle sensing information with the position sensing information of the STA by the AP to obtain the working beam pair information based on combined position and angle sensing; The working beam pair information refers to the beam numbers respectively used by the AP and the target STA during transmission and reception.

[0043] Step 3-3: The AP indicates the working beam pair information in any future PPDU.

[0044] Step 3-4: After the STA receives the working beam pair information sent by the AP, use the working beam pair for communication with the AP.

[0045] A computer program that causes a computer to execute the above combined position and angle sensing method.

[0046] An electronic device, comprising: a processor and a memory; The memory is used to store a computer program, and the processor is used to execute the computer program stored in the memory so that the electronic device executes the above combined position and angle sensing method.

[0047] A computer-readable storage medium, on which a computer program is stored, and when the computer program is executed by a processor, the above combined position and angle sensing method is implemented.

[0048] A chip, comprising: a processor for calling and running a computer program from a memory, so that a device installed with the chip executes the above combined position and angle sensing method.

[0049] A computer program product, the computer program product includes a computer storage medium, the computer storage medium stores a computer program, the computer program includes instructions that can be executed by at least one processor, and when the instructions are executed by the at least one processor, the above combined position and angle sensing method is implemented.

[0050] The beneficial effects of the present invention are as follows:

[0051] The present invention can utilize the sensed position and angle information to assist millimeter wave in beam selection. When at least one of the position or angle of the STA changes, the working beam pair can be adjusted based on the sensed information, thereby improving the communication performance of millimeter wave WLAN. Brief Description of the Drawings

[0052] Figure 1 is the network structure of millimeter wave WLAN;

[0053] Figure 2 is the millimeter wave WLAN BI structure;

[0054] Figure 3 (a) is the frame interaction process where only the sender has position sensing ability, and (b) is the frame interaction process where only the receiver has position sensing ability;

[0055] Figure 4 are the technical problems existing only in position sensing;

[0056] Figure 5 is the illustration of Embodiment 1;

[0057] Figure 6 is the illustration of Embodiment 2;

[0058] Figure 7 is the illustration of Embodiment 3, (a) the sensing process based on ACK feedback, and (b) the sensing process based on data frame feedback. Detailed Embodiments

[0059] The present invention will be further described below with reference to the drawings and embodiments.

[0060] The solution of the present invention relates to data communication between a millimeter wave WLAN AP and one or more STAs.

[0061] The present invention assumes that the AP has position sensing ability and the STA has angle sensing ability.

[0062] Embodiment 1: A general method for the AP to explicitly obtain the working beam pair based on joint position and angle sensing through control frame interaction. The specific process is as Figure 5 shown.

[0063] Step 1: When the AP obtains the channel usage right and meets the sensing trigger condition, the AP sends a sensing trigger frame to the STA. The role of the sensing trigger frame is to require the target STA to report the angle sensing information of the target STA to the AP.

[0064] The perception trigger condition is one or a combination of the following conditions. When it is a combination of multiple conditions, it can be considered satisfied if any one of them is met, or it can be considered satisfied only when all conditions are met:

[0065] (1) The AP triggers the perception process regularly with a period of T. When the time elapsed since the last perception process is T.

[0066] (2) The AP fails to send packets to the target STA continuously for M times.

[0067] (3) Within a time window tw, the packet loss rate of the AP sending packets to the target STA is greater than the threshold λ.

[0068] (4) When the AP detects that the received energy value of the packet sent by the target STA is lower than the preset threshold β.

[0069] (5) When the AP successfully accesses the channel for the first time in any SP phase or CBAP phase.

[0070] Step 2: After receiving the perception trigger frame sent by the AP, the target STA replies with a perception report frame to the AP after an SIFS duration. The role of the perception report frame is for the target STA to report its angle perception result.

[0071] Step 3: After receiving the perception report frame sent by the target STA, the AP records the angle perception information of the target STA. Combine the angle perception information with the AP's position perception information of the target STA to obtain the working beam pair information based on joint position and angle perception. The working beam pair information refers to the beam numbers used by the AP and the target STA respectively during transmission and reception. After an SIFS duration after receiving the perception report frame sent by the target STA, the AP sends a perception response frame to the target STA. The role of the perception response frame is to inform the target STA of the working beam pair information. After sending the perception response frame, the AP uses the working beam pair when communicating with the target STA.

[0072] Step 4: After receiving the perception response frame sent by the AP, the target STA records the working beam pair information and uses the working beam pair when communicating with the AP.

[0073] Embodiment 2: A general method for the STA to explicitly obtain the working beam pair based on joint position and angle perception through control frame interaction. The specific process is as Figure 6 shown.

[0074] Step 1: When the STA obtains the channel usage right and meets the sensing trigger condition, it sends a sensing request frame to the AP. The sensing request frame carries the STA's own angle sensing information. The purpose of sending the sensing request frame is to request the AP to feedback the working beam pair information based on joint position and angle sensing. The working beam pair information refers to the beam numbers used by the AP and the target STA during transmission and reception respectively.

[0075] The sensing trigger condition is one or a combination of the following conditions. When it is a combination of multiple conditions, it can be considered satisfied if any one of them is met, or it can be considered satisfied only when all conditions are met:

[0076] (1) The STA triggers the sensing process regularly with a period of T. When the time elapsed since the last sensing process is T.

[0077] (2) The STA fails to send packets to the AP continuously for M times.

[0078] (3) Within a time window tw, the packet loss rate of the STA sending packets to the AP is greater than the threshold λ.

[0079] (4) When the STA detects that the received energy value of the packet sent by the AP is lower than the preset threshold β.

[0080] (5) When the STA successfully accesses the channel for the first time in any SP phase or CBAP phase.

[0081] Step 2: After receiving the sensing request frame sent by the STA, the AP records the angle sensing information of the target STA. Combine the angle sensing information with the AP's position sensing information of the STA to obtain the working beam pair information based on joint position and angle sensing. The working beam pair information refers to the beam numbers used by the AP and the target STA during transmission and reception respectively. The AP sends a sensing response frame to the target STA after the SIFS duration after receiving the sensing report frame sent by the target STA. The purpose of the sensing response frame is to inform the STA of the working beam pair information. After sending the sensing response frame, the AP and the STA use the working beam pair for communication.

[0082] Step 3: After receiving the sensing response frame sent by the AP, the STA records the working beam pair information and uses the working beam pair for communication with the AP.

[0083] Embodiment 3: A general method for the AP and the STA to implicitly initiate the sensing process without interacting through control frames. The specific process is as Figure 7 shown.

[0084] Step 1: When the STA meets the sensing trigger condition, the STA can carry its own angle sensing information in the data frame or ACK. Whether to carry it in the ACK or in the data frame depends on the downlink or uplink transmission. If it is downlink data transmission, the AP sends a data frame to the STA, so the STA carries its own angle sensing information in the ACK frame. If it is uplink data transmission, the STA sends a data frame to the AP, so the STA carries its own angle sensing information in the data frame.

[0085] The sensing trigger condition is one or a combination of the following conditions. When it is a combination of multiple conditions, it can be considered satisfied if any one of them is met, or it can be considered satisfied only if all conditions are met:

[0086] (1) The STA periodically triggers the sensing process at a period of T. When the time duration T has passed since the last sensing process.

[0087] (2) The STA fails to send packets to the AP continuously for M times.

[0088] (3) Within a time window tw, the packet loss rate of the STA sending packets to the AP is greater than the threshold λ.

[0089] (4) When the STA detects that the received energy value of the packet sent by the AP is lower than the preset threshold β.

[0090] Step 2: After the AP receives the angle sensing information carried in the data frame or ACK sent by the STA, it records the angle sensing information of the target STA. Combine the angle sensing information with the AP's position sensing information of the STA to obtain the working beam pair information based on joint position and angle sensing. The working beam pair information refers to the beam numbers used by the AP and the target STA during transmission and reception respectively.

[0091] Step 3: The AP indicates the working beam pair information in any future PPDU.

[0092] Step 4: After the STA receives the working beam pair information sent by the AP, it uses the working beam pair when communicating with the AP.

Claims

1. A method for joint position and angle perception based on perception-assisted communication, characterized in that: The steps include: Step 1: The AP explicitly obtains the working beam pair based on joint position and angle perception through control frame interaction; Step 1-1: When the AP obtains the right to use the channel and meets the perception trigger condition, the AP sends a perception trigger frame to the STA; the function of the perception trigger frame is to require the target STA to report the angle perception information of the target STA to the AP; The perception trigger condition is a combination of one or more of the following conditions. When it is a combination of multiple conditions, it can be considered that the condition is met when one of them is met, or it can be considered that the condition is met only when all the conditions are met: (1) The AP triggers the sensing process at a period of T, when a period of T has passed since the last sensing process; (2) The AP fails to send packets to the target STA M times in a row; (3) Within a time window tw, the packet loss rate of the AP to the target STA is greater than the threshold λ; (4) When the AP detects that the received energy value of the packet sent by the target STA is lower than the preset threshold β; (5) When the AP successfully accesses the channel for the first time in any SP phase or CBAP phase; Step 1-2: After receiving the perception trigger frame sent by the AP, the target STA replies with a perception report frame to the AP at an interval of SIFS; the perception report frame is used for the target STA to report its own angle perception result; Step 1-3: After receiving the perception report frame sent by the target STA, the AP records the angle perception information of the target STA; The angle perception information is combined with the AP's position perception information of the target STA to obtain the working beam pair information based on the joint perception of position and angle; The working beam pair information refers to the beam numbers used by the AP and the target STA when sending and receiving respectively; the AP sends a perception response frame to the target STA after the SIFS duration after receiving the perception report frame sent by the target STA, and the function of the perception response frame is to notify the target STA of the working beam pair information; after sending the perception response frame, the AP uses the working beam pair when communicating with the target STA; Step 1-4: After receiving the sensing response frame sent by the AP, the target STA records the working beam pair information and uses the working beam pair when communicating with the AP; Step 2: STA explicitly obtains the working beam pair based on joint position and angle perception through control frame interaction; Step 2-1: When the STA obtains the right to use the channel and meets the perception trigger condition, it sends a perception request frame to the AP; the perception request frame carries the STA's own angle perception information, and the purpose of sending the perception request frame is to request the AP to feedback the working beam pair information based on the joint perception of position and angle; the working beam pair information refers to the beam numbers used by the AP and the target STA when sending and receiving respectively; The perception trigger condition is a combination of one or more of the following conditions. When it is a combination of multiple conditions, it can be considered that the condition is met when one of them is met, or it can be considered that the condition is met only when all the conditions are met: (1) STA triggers the sensing process with a period of T, when a period of T has passed since the last sensing process; (2) The STA fails to send packets to the AP M times in a row; (3) Within a time window tw, the packet loss rate of packets sent by the STA to the AP is greater than the threshold λ; (4) When the STA detects that the received energy value of the packet sent by the AP is lower than the preset threshold β; (5) When a STA successfully accesses the channel for the first time in any SP phase or CBAP phase; Step 2-2: After receiving the perception request frame sent by the STA, the AP records the angle perception information of the target STA; The angle perception information is combined with the AP's position perception information of the STA to obtain the working beam pair information based on the joint perception of the position and angle; the working beam pair information refers to the beam numbers used by the AP and the target STA when sending and receiving respectively; the AP sends a perception response frame to the target STA after the SIFS duration after receiving the perception report frame sent by the target STA, and the role of the perception response frame is to notify the STA of the working beam pair information; after sending the perception response frame, the AP uses the working beam pair when communicating with the STA; Step 2-3: After receiving the sensing response frame sent by the AP, the STA records the working beam pair information and uses the working beam pair when communicating with the AP; Step 3: AP and STA implicitly initiate the perception process without exchanging control frames; Step 3-1: When the STA meets the perception trigger condition, the STA can carry its own angle perception information in the data frame or ACK; If it is downlink data transmission, the AP sends a data frame to the STA, so that the STA carries its own angle perception information in the ACK frame; If it is uplink data transmission, the STA sends a data frame to the AP, so that the STA carries its own angle perception information in the data frame; The perception trigger condition is a combination of one or more of the following conditions. When it is a combination of multiple conditions, it can be considered that the condition is met when one of them is met, or it can be considered that the condition is met only when all the conditions are met: (1) STA triggers the sensing process with a period of T, when a period of T has passed since the last sensing process; (2) The STA fails to send packets to the AP M times in a row; (3) Within a time window tw, the packet loss rate of packets sent by the STA to the AP is greater than the threshold λ; (4) When the STA detects that the received energy value of the packet sent by the AP is lower than the preset threshold β; Step 3-2: After receiving the angle perception information in the data frame or ACK sent by the STA, the AP records the angle perception information of the target STA; The angle perception information is combined with the AP's position perception information of the STA to obtain the working beam pair information based on the joint perception of the position and angle; the working beam pair information refers to the beam numbers used by the AP and the target STA when sending and receiving respectively; Step 3-3: The AP indicates the working beam pair information in any future PPDU; Step 3-4: After receiving the working beam pair information sent by the AP, the STA uses the working beam pair when communicating with the AP.

2. A computer program, characterized in that The computer program enables a computer to execute the method as claimed in claim 1.

3. An electronic device, characterized in that: include: Processor and memory; The memory is used to store a computer program, and the processor is used to execute the computer program stored in the memory, so that the electronic device executes the method as claimed in claim 1.

4. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the method as claimed in claim 1 is implemented.

5. A chip, characterized in that: include: A processor, used to call and run a computer program from a memory, so that a device equipped with the chip executes the method as claimed in claim 1.

6. A computer program product, characterized in that The computer program product comprises a computer storage medium storing a computer program, wherein the computer program comprises instructions executable by at least one processor, and when the instructions are executed by the at least one processor, the method according to claim 1 is implemented.

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