Signal processing method and apparatus, electronic device, and storage medium

Abstract

This disclosure relates to the field of mobile communication technology, providing a signal processing method and apparatus, an electronic device, and a storage medium. The signal processing method is applied to a multi-connectivity access point device. The method includes: transmitting a target radio frame; wherein the target radio frame carries a Basic Service Set Disabling (BSS) Color Disable information of the multi-connectivity access point device to indicate whether BSS Color is disabled. This allows BSS Color to be used in multi-connectivity scenarios, increasing the system capacity of the wireless network in dense environments and increasing frequency reuse among BSSs by assigning different colors to each BSS. This disclosure also provides a method for indicating whether there is a conflict in BSS color values ​​in a multi-connectivity scenario.

Description

Technical Field

[0001] This disclosure relates to the field of mobile communication technology, and more specifically, to a signal processing method and apparatus, an electronic device and a storage medium. Background Technology

[0002] With the rapid development of mobile communication technology, Wireless Fidelity (Wi-Fi) technology has made significant progress in terms of transmission rate and throughput. Currently, research on Wi-Fi technology focuses on areas such as 320MHz bandwidth transmission, aggregation and coordination of multiple frequency bands, and its main applications include video transmission, Augmented Reality (AR), and Virtual Reality (VR).

[0003] Specifically, multi-band aggregation and coordination refers to devices communicating simultaneously in 2.4GHz, 5.8GHz, 6GHz, and other frequency bands. For scenarios where devices communicate simultaneously in multiple frequency bands, a new Media Access Control (MAC) mechanism needs to be defined for management. Furthermore, multi-band aggregation and coordination is expected to support low-latency transmission.

[0004] Currently, the maximum bandwidth supported by multi-band aggregation and coordination technology is 320MHz (160MHz+160MHz). In addition, it may also support 240MHz (160MHz+80MHz) and other bandwidths supported by existing standards.

[0005] Current Wi-Fi technologies support multi-connection communication. For example, in a wireless LAN, a Basic Service Set (BSS) can consist of an Access Point (AP) and one or more Stations (STAs) communicating with the AP. The AP and STA can each be a Multi-Link Device (MLD), which supports simultaneous transmission and / or reception under multiple connections. Therefore, multiple connections can exist between the AP MLD and the STA MLD for communication.

[0006] Furthermore, to improve spectrum utilization and adapt to high-density communication environments, a spatial reuse (SR) mechanism is introduced. Further, within the SR mechanism, a BSS color value mechanism is employed to quickly distinguish the PPDUs transmitted by each BSS. However, in an Overlapping Basic Service Set (OBSS) environment, BSS color values ​​may conflict. Therefore, a method is needed to indicate whether BSS color values ​​conflict in multi-connection scenarios. Summary of the Invention

[0007] This disclosure provides a signal processing method, apparatus, electronic device, and storage medium to provide a way to indicate whether there is a conflict in BSS color values ​​in a multi-connection scenario.

[0008] On one hand, embodiments of this disclosure provide a signal processing method applied to a multi-connection access point device, the method comprising:

[0009] Send a target radio frame; wherein the target radio frame carries the Basic Service Set Disabling (BSS) Color Disable information of the multi-connection access point device.

[0010] On the other hand, this disclosure also provides a signal processing method applied to a site device, the method comprising:

[0011] Receive a target radio frame sent by a multi-connection access point device; wherein the target radio frame carries the Basic Service Set Disabling (BSS) Color Disable information of the multi-connection access point device.

[0012] On the other hand, this disclosure also provides an access point device, which is a multi-connection access point device, comprising:

[0013] A transmitting module is used to transmit a target radio frame; wherein the target radio frame carries the Basic Service Set Disabling (BSS) Color Disable information of the multi-connection access point device.

[0014] On the other hand, embodiments of this disclosure also provide a site device, the site device including: a receiving module, configured to receive a target radio frame sent by a multi-connection access point device; wherein the target radio frame carries a Basic Service Set Disabling identifier (BSS Color Disable) of the multi-connection access point device.

[0015] On the other hand, embodiments of this disclosure also provide a signal processing apparatus applied to a multi-connection access point device, the apparatus comprising:

[0016] A wireless frame transmission module is used to transmit a target wireless frame; wherein the target wireless frame carries the Basic Service Set Disabling (BSS) Color Disable information of the multi-connection access point device.

[0017] On the other hand, embodiments of this disclosure also provide a signal processing apparatus, which is applied to site equipment, and the apparatus includes:

[0018] A wireless frame receiving module is used to receive a target wireless frame sent by a multi-connection access point device; wherein the target wireless frame carries the Basic Service Set Disabling (BSS) Color Disable information of the multi-connection access point device.

[0019] This disclosure also provides an electronic device, including a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the program to implement one or more of the methods described in this disclosure.

[0020] This disclosure also provides a computer-readable storage medium storing a computer program that, when executed by a processor, implements one or more of the methods described in this disclosure.

[0021] In this embodiment of the disclosure, when the AP MLD sends a target radio frame to the STA, it carries BSSColor Disable information in the target radio frame to indicate whether BSS Color is disabled. This allows BSS Color to be applied in multi-connection scenarios, increasing the system capacity of the wireless network in dense environments and increasing frequency reuse among BSSs by assigning different colors to each BSS.

[0022] Additional aspects and advantages of embodiments of this disclosure will be set forth in part in the description which follows, and will become apparent from the description or may be learned by practice of this disclosure. Attached Figure Description

[0023] To more clearly illustrate the technical solutions of the embodiments of this disclosure, the accompanying drawings used in the description of the embodiments of this disclosure will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1This is one of the flowcharts for the signal processing method provided in the embodiments of this disclosure;

[0025] Figure 2 This is a schematic diagram of a first example of an embodiment of this disclosure;

[0026] Figure 3 This is a second flowchart of a signal processing method provided in an embodiment of the present disclosure;

[0027] Figure 4 This is the third flowchart of the signal processing method provided in the embodiments of this disclosure;

[0028] Figure 5 The fourth flowchart of the signal processing method provided in the embodiments of this disclosure;

[0029] Figure 6 This is a schematic diagram of the structure of the access point device provided in an embodiment of this disclosure;

[0030] Figure 7 A schematic diagram of the structure of the site equipment provided in the embodiments of this disclosure;

[0031] Figure 8 This is a schematic diagram of the structure of an electronic device provided in an embodiment of this disclosure. Detailed Implementation

[0032] In this disclosure, the term "and / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent three cases: A alone, A and B simultaneously, and B alone. The character " / " generally indicates that the preceding and following related objects have an "or" relationship.

[0033] In this disclosure, the term "multiple" refers to two or more, and other quantifiers are similar.

[0034] The technical solutions of the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this disclosure, and not all embodiments. Based on the embodiments of this disclosure, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this disclosure.

[0035] This disclosure provides a signal processing method, apparatus, electronic device, and storage medium to provide a way to indicate whether there is a conflict in BSS color values ​​in a multi-connection scenario.

[0036] The method and apparatus are based on the same concept of the application. Since the methods and apparatus solve problems in similar ways, the implementation of the apparatus and methods can refer to each other, and the repeated parts will not be described again.

[0037] like Figure 1 As shown in the illustration, this disclosure provides a signal processing method. Optionally, the method can be applied to a multi-connection access point device (AP or AP MLD), and the method may include the following steps:

[0038] Step 101: Send a target radio frame; wherein the target radio frame carries the Basic Service Set Disabling (BSS) Color Disable information of the multi-connection access point device.

[0039] In this disclosure, the AP and STA can be devices that support multiple connections, for example, they can be represented as APMLD and non-AP MLD, respectively. For ease of description, the following mainly describes an example of one AP and one STA communicating under multiple connections; however, the exemplary embodiments of this disclosure are not limited thereto.

[0040] As a first example, see Figure 2 AP MLD can represent an access point that supports multi-connection communication, while non-APMLD can represent a site that supports multi-connection communication. (See reference...) Figure 2 The AP MLD can operate in three links, such as Figure 2 As shown, AP1, AP2, and AP3 can each operate in connection 1, connection 2, and connection 3 respectively; non-AP MLDs can also operate in all three connections, such as... Figure 2 As shown, STA1, STA2, and STA3 operate at connection 1, STA2 at connection 2, and STA3 at connection 3. Figure 2 In the example, assume AP1 communicates with STA1 via the corresponding first connection Link 1; similarly, AP2 communicates with STA2 via the corresponding second connection Link 2, and AP communicates with STA3 via the third connection Link 3. Furthermore, Links 1 to 3 can be multiple connections at different frequencies, such as connections at 2.4GHz, 5GHz, and 6GHz, or several connections with the same or different bandwidths at 2.4GHz. Additionally, multiple channels can exist under each connection. It is understood that... Figure 2 The communication scenarios shown are merely exemplary, and the present disclosure is not limited thereto. For example, an AP MLD can connect to multiple non-AP MLDs, or under each connection, the AP can communicate with multiple other types of sites.

[0041] In multi-connection scenarios, a spatial reuse (SR) mechanism is employed to accommodate dense communication environments. To quickly distinguish the Presentation Protocol Data Units (PPDUs) transmitted by each BSS, a BSS color value mechanism is used. However, BSS color values ​​may conflict. Specifically, in half-duplex communication, only one device can transmit on the network at a time. When a node detects that the channel is busy, it needs to postpone its transmission until the channel is idle. Multiple APs and STAs are deployed on the same channel and compete for transmission, forming the OBSS. In OBSS, this co-channel interference is called Co-Channel Interference (CCI). BSS Coloring is a method to improve the spatial reuse rate of OBSS and reduce MAC layer contention overhead caused by overlapping BSSs. On the one hand, BSS Coloring aims to improve spatial reuse; on the other hand, it avoids the reduction in physical layer transmission rate between nodes due to interference between BSSs, thereby reducing the Modulation and Coding Scheme (MCS) value. Specifically, BSS Coloring distinguishes BSSs by adding a field (i.e., the BSS Coloring field) to the Physical Layer (PHY) header. This allows nodes to allocate MAC layer contention behavior based on the detected BSS Coloring field in the PHY header during contention. If two APs have the same BSS Coloring, a BSS Coloring conflict, or color conflict, occurs.

[0042] The BSS Color Disable information is used to indicate whether the color of the BSS to which the AP belongs is disabled; for example, after a conflict with the BSS color of the OBSS is detected, the BSS Color Disable information should be set to the disabled state to notify other STAs in the BSS that the BSS color has been disabled; otherwise, the BSS Color Disabled information should be set to the enabled state.

[0043] In this embodiment of the disclosure, when the AP MLD sends a target radio frame to the STA, it carries BSSColor Disable information in the target radio frame to indicate whether BSS Color is disabled. This allows BSS Color to be applied in multi-connection scenarios, increasing the system capacity of the wireless network in dense environments and increasing frequency reuse among BSSs by assigning different colors to each BSS. This embodiment of the disclosure provides a method for indicating whether there is a conflict in BSS color values ​​in a multi-connection scenario.

[0044] like Figure 3 As shown in the embodiments of this disclosure, a signal processing method is also provided. Optionally, the method can be applied to an AP, which includes a multiple access device (AP MLD). The method may include step 301 and / or step 302.

[0045] Step 301: In each of the communication connections of the multi-connection access point devices, the target radio frame is sent to the station corresponding to the communication connection respectively.

[0046] The AP MLD broadcasts a target radio frame on each link to the multi-connection access point device. The target radio frame carries BSS Color Disable information to indicate whether the BSS color is disabled. For example, after detecting a conflict with the BSS color of the OBSS, the BSS Color Disable information should be set to the disabled state to notify other STAs in the BSS that the BSS color has been disabled; otherwise, the BSS Color Disabled information should be set to the enabled state.

[0047] Step 302: Broadcast the target wireless frame in at least one of the communication connections.

[0048] Under at least one communication connection with the STA, the AP MLD can broadcast target radio frames under other communication connections, carrying BSS Color Disable information under other communication connections in the target radio frames to save signaling overhead. Carrying BSS Color Disable information in the target radio frames indicates whether BSS Color is disabled, enabling BSS Color to be applied in multi-connection scenarios, increasing the system capacity of the wireless network in dense environments, and increasing frequency reuse among BSSs.

[0049] In an optional embodiment, the target wireless frame is sent to the station corresponding to the communication connection respectively, that is, the target wireless frame is sent to each communication connection respectively;

[0050] The BSS Color Disable information is carried in the multi-connection ML information element, and the ML information element is carried in the target radio frame.

[0051] The ML information element identifies the AP's capabilities across multiple connections. As a first example, the format of the ML information element is shown in Table 1, which includes element identifier, length, element identifier extension, and general information.

[0052] Table 1:

[0053]

[0054] Furthermore, the BSS Color Disable information can be carried in the Multi-Link Control field. The format of the Multi-Link Control information is shown in Table 2 below. The SR indication information is carried in the Multi-Link Control information, for example, in the Reserved field.

[0055] Table 2:

[0056]

[0057] In an alternative embodiment, the BSS Color Disable information is carried in the site configuration per-STA profile sub-element or the link info sub-element of the ML information element.

[0058] The BSS Color Disable information can also be carried in the Linkinfo sub-element of the ML information element; in addition, the ML information element includes the sub-elements shown in Table 1, as well as the per-STA profile sub-element; as a second example, the format of the per-STA profile sub-element is shown in Table 3:

[0059] Table 3:

[0060]

[0061] In Table 3, the BSS Color Disable information can be carried in the STA profile field.

[0062] In an alternative embodiment, when broadcasting the target wireless frame, that is, broadcasting the target wireless frame under other communication connections through at least one communication connection;

[0063] The BSS Color Disable information is carried in the Enhanced Ultra High Throughput (EHT) operating element, which is carried in the target radio frame.

[0064] As a third example, the format of the Enhancements for Extremely High Throughput (EHT) operation element is shown in Table 4:

[0065] Table 4:

[0066]

[0067] Furthermore, in an optional embodiment, the BSS Color Disable information is carried in the EHT Operation Information sub-element of the EHT Operation element, i.e., the EHT Operation Information shown in Table 4.

[0068] like Figure 4 As shown in the embodiments of this disclosure, a signal processing method is also provided. Optionally, the method can be applied to an access point (AP), which includes a multiple access device (AP MLD). The method may include the following steps:

[0069] Step 401: If the BSS parameter change count information in the ML information element indicates that the BSS parameter has changed, set the BSS Color Disable information to indicate that the BSS Color is disabled, and send the target radio frame; the target radio frame carries the BSS Color Disable information.

[0070] Among them, the BSS parameter change count information is the information in the PresentBitmap subfield of the ML control field in the ML information element. As the fourth example, the format of Present Bitmap is shown in Table 5, and BSS ParametersChange Count is a sub-element of Present Bitmap.

[0071] Table 5:

[0072]

[0073] Taking "1" as an example to indicate that BSS Color is disabled, when the value of BSS Parameter Change Count Present is set to 1, it means that the value of BSS Parameters Change Count in the Common Info field of the ML information element has changed and increased by 1. Then, the value of BSS color disable in the ML information element is set to "1", which indicates that BSS Color is disabled under the current connection. This allows BSS Color to be used in multi-connection scenarios. By assigning different colors to each BSS, the system capacity of the wireless network in dense environments is increased, and frequency reuse between BSSs is increased.

[0074] In an optional embodiment, before transmitting the target radio frame, the method includes:

[0075] The AP determines (or generates) the target radio frame. Optionally, the target radio frame may be a Beacon frame, Probe Response frame, ML Probe Response frame, etc. The AP determines and carries BSSColor Disable information in the target radio frame to indicate whether BSS Color is disabled, enabling BSS Color to be used in multi-connection scenarios.

[0076] In one optional embodiment, the target radio frame includes at least one of a beacon frame, a probe response frame, a multi-connection probe response (ML Probe Response) frame, an association response frame, and a reassociation response frame. It is understood that the target radio frame may also include other forms, and this disclosure does not specifically limit its scope.

[0077] In this embodiment of the disclosure, when the AP MLD sends a target radio frame to the STA, it carries BSSColor Disable information in the target radio frame to indicate whether BSS Color is disabled. This allows BSS Color to be applied in multi-connection scenarios, increasing the system capacity of the wireless network in dense environments and increasing frequency reuse among BSSs by assigning different colors to each BSS. This embodiment of the disclosure provides a method for indicating whether there is a conflict in BSS color values ​​in a multi-connection scenario.

[0078] See Figure 5 This disclosure also provides a signal processing method applied to a station device (STA). The STA can be a device providing voice and / or data connectivity to a user, a handheld device with wireless connectivity, or other processing devices connected to a wireless modem. In a wireless local area network (WLAN), a BSS can consist of an access point (AP) and one or more STAs communicating with the AP. Communication between the AP and the STA is achieved through a communication link.

[0079] The method includes:

[0080] Step 501: Receive a target radio frame sent by the multi-connection access point device; wherein the target radio frame carries the Basic Service Set Disabling (BSS) Color Disable information of the multi-connection access point device.

[0081] The STA receives a target radio frame sent by the AP. Optionally, the target radio frame may be a Beacon frame, a ProbeResponse frame, an ML Probe Response frame, etc. The AP and STA can be multi-connection supported devices, for example, they can be represented as AP MLD and non-AP MLD, respectively. For ease of description, the following primarily describes an example of communication between an AP and a STA under multi-connection conditions; however, the exemplary embodiments of this disclosure are not limited thereto.

[0082] As a first example, see Figure 2 AP MLD can represent an access point that supports multi-connection communication, while non-APMLD can represent a site that supports multi-connection communication. (See reference...) Figure 2 The AP MLD can operate in three connection modes, such as... Figure 2 As shown, AP1, AP2, and AP3 can each operate in connection 1, connection 2, and connection 3 respectively; non-AP MLDs can also operate in all three connections, such as... Figure 2 As shown, STA1, STA2, and STA3 operate at connection 1, STA2 at connection 2, and STA3 at connection 3. Figure 2 In the example, assume AP1 communicates with STA1 via the corresponding first connection Link 1; similarly, AP2 communicates with STA2 via the corresponding second connection Link 2, and AP communicates with STA3 via the third connection Link 3. Furthermore, Links 1 to 3 can be multiple connections at different frequencies, such as connections at 2.4GHz, 5GHz, and 6GHz, or several connections with the same or different bandwidths at 2.4GHz. Additionally, multiple channels can exist under each connection. It is understood that... Figure 2 The communication scenarios shown are merely exemplary, and the present disclosure is not limited thereto. For example, an AP MLD can connect to multiple non-AP MLDs, or under each connection, the AP can communicate with multiple other types of sites.

[0083] In multi-connection scenarios, the SR (Search Server) mechanism is used to adapt to dense communication environments. To quickly distinguish the PPDUs sent by each BSS (Block Serving Unit), a BSS color value mechanism is used. However, BSS color values ​​may conflict. Specifically, in half-duplex communication, only one device can transmit on the network at a time. When a node detects that the channel is busy, it needs to postpone its transmission until the channel is idle. Multiple APs and STAs are deployed on the same channel and compete for transmission, forming the OBSS (On-Board Switched Serving). In OBSS, this co-channel interference is called CCI (Correction Interference). BSSColoring is a method to improve OBSS spatial reuse and reduce MAC layer contention overhead caused by overlapping BSSs. On the one hand, BSSColoring aims to improve spatial reuse; on the other hand, it avoids the reduction in physical layer transmission rate between nodes due to interference between BSSs, thereby reducing the MCS (Mean Cross-Side Component) value. Specifically, BSSColoring distinguishes BSSs by adding a field (i.e., the BSSColoring field) to the physical layer (PHY) header. During contention, nodes allocate MAC layer contention behavior based on the detected BSSColoring field in the physical layer header. If two APs have the same BSS coloring, then a BSS coloring conflict occurs, i.e., a color conflict.

[0084] The BSS Color Disable information is used to indicate whether the color of the BSS to which the AP belongs is disabled; for example, after a conflict with the BSS color of the OBSS is detected, the BSS Color Disable information should be set to the disabled state to notify other STAs in the BSS that the BSS color has been disabled; otherwise, the BSS Color Disabled information should be set to the enabled state.

[0085] In this embodiment of the disclosure, the STA receives a target radio frame sent by the AP. The target radio frame carries BSS ColorDisable information to indicate whether BSS Color is disabled. This allows BSS Color to be applied in multi-connection scenarios by assigning a different Color to each BSS, increasing the system capacity of the wireless network in dense environments and increasing frequency reuse among BSSs. This embodiment of the disclosure provides a method for indicating whether there is a conflict in BSS color values ​​in a multi-connection scenario.

[0086] In an optional embodiment, receiving the target radio frame sent by the multi-connection access point device includes:

[0087] In a communication connection with a multi-connection access point device, receive a target wireless frame sent by the multi-connection access point device;

[0088] and / or

[0089] Receive the target wireless frame broadcast by the multi-connection access point device.

[0090] In an optional embodiment, when receiving a target radio frame sent by a multi-connection access point device during a communication connection with the multi-connection access point device...

[0091] The BSS Color Disable information is carried in the multi-connection ML information element, and the ML information element is carried in the target radio frame.

[0092] In an alternative embodiment, the BSS Color Disable information is carried in the site configuration per-STA profile sub-element or the link info sub-element of the ML information element.

[0093] In an alternative embodiment, when receiving the target radio frame broadcast by the multiple connectivity access point device...

[0094] The BSS Color Disable information is carried in the Enhanced Ultra High Throughput (EHT) operating element, which is carried in the target radio frame.

[0095] In an optional embodiment, the BSS Color Disable information is carried in the EHT operation information sub-element of the EHT operation element.

[0096] In this embodiment of the disclosure, the STA receives a target radio frame sent by the AP. The target radio frame carries BSS ColorDisable information to indicate whether BSS Color is disabled. This allows BSS Color to be applied in multi-connection scenarios. By assigning a different Color to each BSS, the system capacity of the wireless network in dense environments is increased, and frequency reuse between BSSs is increased.

[0097] Based on the same principles as the methods provided in the embodiments of this disclosure, this disclosure also provides an access point device. In a wireless local area network (WLAN), a BSS can consist of an AP and one or more STAs communicating with the AP. A basic service set (BSS) can connect to a DS through its AP, and then access another basic service set (ESS), forming an extended service set (ESS). The AP and STA communicate via a communication connection. Figure 6 As shown, the access point device includes:

[0098] The transmitting module 601 transmits a target wireless frame; wherein the target wireless frame carries the Basic Service Set Disabling (BSS) Color Disable information of the multi-connection access point device.

[0099] Optionally, the target wireless frame may be a Beacon frame, a Probe Response frame, an ML Probe Response frame, etc. The AP and STA can be multi-connection supported devices, for example, they can be represented as AP MLD and non-AP MLD, respectively. For ease of description, the following primarily describes an example of communication between an AP and a STA under multi-connection conditions; however, the exemplary embodiments of this disclosure are not limited thereto.

[0100] As a first example, see Figure 2 AP MLD can represent an access point that supports multi-connection communication, while non-APMLD can represent a site that supports multi-connection communication. (See reference...) Figure 2 The AP MLD can operate in three connection modes, such as... Figure 2 As shown, AP1, AP2, and AP3 can each operate in connection 1, connection 2, and connection 3 respectively; non-AP MLDs can also operate in all three connections, such as... Figure 2 As shown, STA1, STA2, and STA3 operate at connection 1, STA2 at connection 2, and STA3 at connection 3. Figure 2 In the example, assume AP1 communicates with STA1 via the corresponding first connection Link 1; similarly, AP2 communicates with STA2 via the corresponding second connection Link 2, and AP communicates with STA3 via the third connection Link 3. Furthermore, Links 1 to 3 can be multiple connections at different frequencies, such as connections at 2.4GHz, 5GHz, and 6GHz, or several connections with the same or different bandwidths at 2.4GHz. Additionally, multiple channels can exist under each connection. It is understood that... Figure 2 The communication scenarios shown are merely exemplary, and the present disclosure is not limited thereto. For example, an AP MLD can connect to multiple non-AP MLDs, or under each connection, the AP can communicate with multiple other types of sites.

[0101] In multi-connection scenarios, the SR (Search Server) mechanism is used to adapt to dense communication environments. To quickly distinguish the PPDUs sent by each BSS (Block Serving Unit), a BSS color value mechanism is used. However, BSS color values ​​may conflict. Specifically, in half-duplex communication, only one device can transmit on the network at a time. When a node detects that the channel is busy, it needs to postpone its transmission until the channel is idle. Multiple APs and STAs are deployed on the same channel and compete for transmission, forming the OBSS (On-Board Switched Serving). In OBSS, this co-channel interference is called CCI (Correction Interference). BSSColoring is a method to improve OBSS spatial reuse and reduce MAC layer contention overhead caused by overlapping BSSs. On the one hand, BSSColoring aims to improve spatial reuse; on the other hand, it avoids the reduction in physical layer transmission rate between nodes due to interference between BSSs, thereby reducing the MCS (Mean Cross-Side Component) value. Specifically, BSSColoring distinguishes BSSs by adding a field (i.e., the BSSColoring field) to the physical layer (PHY) header. During contention, nodes allocate MAC layer contention behavior based on the detected BSSColoring field in the physical layer header. If two APs have the same BSS coloring, then a BSS coloring conflict occurs, i.e., a color conflict.

[0102] The BSS Color Disable information is used to indicate whether the color of the BSS to which the AP belongs is disabled; for example, after a conflict with the BSS color of the OBSS is detected, the BSS Color Disable information should be set to the disabled state to notify other STAs in the BSS that the BSS color has been disabled; otherwise, the BSS Color Disabled information should be set to the enabled state.

[0103] In an optional embodiment, the sending module 601 includes:

[0104] The first transmitting submodule is used to transmit the target wireless frame to the station corresponding to the communication connection in each of the communication connections of the multi-connection access point devices;

[0105] and / or

[0106] The second transmitting submodule is used to broadcast the target wireless frame in at least one of the communication connections.

[0107] In an alternative embodiment, the BSS Color Disable information is carried in a multi-connectivity ML information element, which is carried in the target radio frame.

[0108] In an alternative embodiment, the BSS Color Disable information is carried in the site configuration per-STA profile sub-element or the link info sub-element of the ML information element.

[0109] In an alternative embodiment, the BSS Color Disable information is carried in an Enhanced Very High Throughput (EHT) operating element, which is carried in the target radio frame.

[0110] In an optional embodiment, the BSS Color Disable information is carried in the EHT operation information sub-element of the EHT operation element.

[0111] In one optional embodiment, the access point device includes:

[0112] The determination module is used to determine the target wireless frame.

[0113] In an optional embodiment, the sending module 601 includes:

[0114] The third transmitting submodule is used to set the BSS Color Disable information to a state indicating that the BSS Color is disabled when the BSS parameter change count information in the ML information element indicates that the BSS parameter has changed, and then transmit the target radio frame.

[0115] In this embodiment of the disclosure, when the sending module 601 sends a target radio frame to the STA, it carries BSS Color Disable information in the target radio frame to indicate whether BSS Color is disabled. This allows BSS Color to be applied in multi-connection scenarios, increasing the system capacity of the wireless network in dense environments and increasing frequency reuse among BSSs by assigning different colors to each BSS.

[0116] This disclosure also provides a signal processing apparatus applied to a multi-connection access point device, the signal processing apparatus comprising:

[0117] A wireless frame transmission module is used to transmit a target wireless frame; wherein the target wireless frame carries the Basic Service Set Disabling (BSS) Color Disable information of the multi-connection access point device.

[0118] The device also includes other modules of the access point device in the foregoing embodiments, which will not be described in detail here.

[0119] See Figure 7This disclosure also provides a site device (STA), which can be a device providing voice and / or data connectivity to a user, a handheld device with wireless connectivity, or other processing devices connected to a wireless modem. In a wireless local area network (WLAN), a BSS can consist of an access point (AP) and one or more site devices (STAs) communicating with the AP. The AP and STAs communicate via a communication link.

[0120] The site equipment includes:

[0121] The receiving module 701 is used to receive a target radio frame sent by a multi-connection access point device; wherein the target radio frame carries the Basic Service Set Disabling identifier (BSS Color Disable) information of the multi-connection access point device.

[0122] The STA receives a target radio frame sent by the AP. Optionally, the target radio frame may be a Beacon frame, a ProbeResponse frame, an ML Probe Response frame, etc. The AP and STA can be multi-connection supported devices, for example, they can be represented as AP MLD and non-AP MLD, respectively. For ease of description, the following primarily describes an example of communication between an AP and a STA under multi-connection conditions; however, the exemplary embodiments of this disclosure are not limited thereto.

[0123] As a first example, see Figure 2 AP MLD can represent an access point that supports multi-connection communication, while non-APMLD can represent a site that supports multi-connection communication. (See reference...) Figure 2 The AP MLD can operate in three connection modes, such as... Figure 2 As shown, AP1, AP2, and AP3 can each operate in connection 1, connection 2, and connection 3 respectively; non-AP MLDs can also operate in all three connections, such as... Figure 2 As shown, STA1, STA2, and STA3 operate at connection 1, STA2 at connection 2, and STA3 at connection 3. Figure 2 In the example, assume AP1 communicates with STA1 via the corresponding first connection Link 1; similarly, AP2 communicates with STA2 via the corresponding second connection Link 2, and AP communicates with STA3 via the third connection Link 3. Furthermore, Links 1 to 3 can be multiple connections at different frequencies, such as connections at 2.4GHz, 5GHz, and 6GHz, or several connections with the same or different bandwidths at 2.4GHz. Additionally, multiple channels can exist under each connection. It is understood that... Figure 2The communication scenarios shown are merely exemplary, and the present disclosure is not limited thereto. For example, an AP MLD can connect to multiple non-AP MLDs, or under each connection, the AP can communicate with multiple other types of sites.

[0124] In multi-connection scenarios, the SR (Search Server) mechanism is used to adapt to dense communication environments. To quickly distinguish the PPDUs sent by each BSS (Block Component Subsystem), a BSS color value mechanism is used. However, BSS color values ​​may conflict. Specifically, in half-duplex communication, only one device can transmit on the network at a time. When a node detects that the channel is busy, it needs to postpone its transmission until the channel is idle. Multiple APs and STAs are deployed on the same channel and compete for transmission, forming the OBSS (On-Board Section). In OBSS, this co-channel interference is called CCI (Correction Concurrency Interference). BSSColoring is a method to improve OBSS spatial reuse and reduce MAC layer contention overhead caused by overlapping BSSs. On the one hand, BSSColoring aims to improve spatial reuse; on the other hand, it avoids the reduction in physical layer transmission rate between nodes due to interference between BSSs, thereby reducing the MCS (Mean Cross Section) value. Specifically, BSSColoring distinguishes BSSs by adding a field (i.e., the BSSColoring field) to the physical layer (PHY) header. During contention, nodes allocate MAC layer contention behavior based on the detected BSSColoring field in the physical layer header. If two APs have the same BSS coloring, then a BSS coloring conflict occurs, i.e., a color conflict.

[0125] The BSS Color Disable information is used to indicate whether the color of the BSS to which the AP belongs is disabled; for example, after a conflict with the BSS color of the OBSS is detected, the BSS Color Disable information should be set to the disabled state to notify other STAs in the BSS that the BSS color has been disabled; otherwise, the BSS Color Disabled information should be set to the enabled state.

[0126] In an optional embodiment, the receiving module 701 includes:

[0127] The first receiving submodule is used to receive the target wireless frame sent by the multi-connection access point device in a communication connection with the multi-connection access point device.

[0128] and / or

[0129] The second receiving submodule is used to receive the target wireless frame broadcast by the multi-connection access point device.

[0130] In an alternative embodiment, the BSS Color Disable information is carried in a multi-connectivity ML information element, which is carried in the target radio frame.

[0131] In an alternative embodiment, the BSS Color Disable information is carried in the site configuration per-STA profile sub-element or the link info sub-element of the ML information element.

[0132] In an alternative embodiment, the BSS Color Disable information is carried in an Enhanced Very High Throughput (EHT) operating element, which is carried in the target radio frame.

[0133] In an optional embodiment, the BSS Color Disable information is carried in the EHT operation information sub-element of the EHT operation element.

[0134] In this embodiment of the disclosure, the receiving module 701 receives a target wireless frame sent by the AP. The target wireless frame carries BSSColor Disable information to indicate whether BSS Color is disabled. This allows BSS Color to be applied in multi-connection scenarios by assigning a different color to each BSS, increasing the system capacity of the wireless network in dense environments and increasing frequency reuse among BSSs. This embodiment of the disclosure provides a method for indicating whether there is a conflict in BSS color values ​​in a multi-connection scenario.

[0135] This disclosure also provides a signal processing apparatus, which is applied to site equipment, and the signal processing apparatus includes:

[0136] A wireless frame receiving module is used to receive a target wireless frame sent by a multi-connection access point device; wherein the target wireless frame carries the Basic Service Set Disabling (BSS) Color Disable information of the multi-connection access point device.

[0137] The device also includes other modules of the site equipment in the foregoing embodiments, which will not be described in detail here.

[0138] This disclosure also provides an electronic device, such as... Figure 8 As shown, Figure 8The illustrated electronic device 8000 can be a server, including a processor 8001 and a memory 8003. The processor 8001 and the memory 8003 are connected, for example, via a bus 8002. Optionally, the electronic device 8000 may also include a transceiver 8004. It should be noted that in practical applications, the transceiver 8004 is not limited to one type, and the structure of this electronic device 8000 does not constitute a limitation on the embodiments of this disclosure.

[0139] Processor 8001 may be a CPU (Central Processing Unit), a general-purpose processor, a DSP (Digital Signal Processor), an ASIC (Application Specific Integrated Circuit), an FPGA (Field Programmable Gate Array), or other programmable logic devices, transistor logic devices, hardware components, or any combination thereof. It may implement or execute the various exemplary logic blocks, modules, and circuits described in conjunction with this disclosure. Processor 8001 may also be a combination that implements computational functions, such as including one or more microprocessor combinations, a combination of a DSP and a microprocessor, etc.

[0140] Bus 8002 may include a pathway for transmitting information between the aforementioned components. Bus 8002 may be a PCI (Peripheral Component Interconnect) bus or an EISA (Extended Industry Standard Architecture) bus, etc. Bus 8002 can be divided into address bus, data bus, control bus, etc. For ease of representation, Figure 8 The bus is represented by a single thick line, but this does not mean that there is only one bus or one type of bus.

[0141] The memory 8003 may be ROM (Read Only Memory) or other types of static storage devices capable of storing static information and instructions, RAM (Random Access Memory) or other types of dynamic storage devices capable of storing information and instructions, or EEPROM (Electrically Erasable Programmable Read Only Memory), CD-ROM (Compact Disc Read Only Memory) or other optical disc storage, optical disc storage (including compressed optical discs, laser discs, optical discs, digital universal optical discs, Blu-ray discs, etc.), magnetic disk storage media or other magnetic storage devices, or any other medium capable of carrying or storing desired program code in the form of instructions or data structures and accessible by a computer, but not limited thereto.

[0142] The memory 8003 stores application code that executes the present invention and is controlled by the processor 8001. The processor 8001 executes the application code stored in the memory 8003 to implement the content shown in the foregoing method embodiments.

[0143] Among them, electronic devices include, but are not limited to: mobile terminals such as mobile phones, laptops, digital radio receivers, PDAs (personal digital assistants), PADs (tablet computers), PMPs (portable multimedia players), and in-vehicle terminals (such as in-vehicle navigation terminals), as well as fixed terminals such as digital TVs and desktop computers. Figure 8 The electronic device shown is merely an example and should not be construed as limiting the functionality and scope of the embodiments disclosed herein.

[0144] The server provided in this disclosure can be a standalone physical server, a server cluster or distributed system composed of multiple physical servers, or a cloud server providing basic cloud computing services such as cloud services, cloud databases, cloud computing, cloud functions, cloud storage, network services, cloud communication, middleware services, domain name services, security services, CDN, and big data and artificial intelligence platforms. The terminal can be a smartphone, tablet, laptop, desktop computer, smart speaker, smartwatch, etc., but is not limited to these. The terminal and server can be directly or indirectly connected via wired or wireless communication, and this disclosure does not impose any restrictions.

[0145] This disclosure provides a computer-readable storage medium storing a computer program that, when run on a computer, enables the computer to execute the corresponding content in the aforementioned method embodiments.

[0146] It should be understood that although the steps in the flowcharts of the accompanying figures are shown sequentially as indicated by the arrows, these steps are not necessarily executed in the order indicated by the arrows. Unless explicitly stated herein, there is no strict order restriction on the execution of these steps, and they can be executed in other orders. Moreover, at least some steps in the flowcharts of the accompanying figures may include multiple sub-steps or multiple stages. These sub-steps or stages are not necessarily completed at the same time, but can be executed at different times, and their execution order is not necessarily sequential, but can be performed alternately or in turn with other steps or at least some of the sub-steps or stages of other steps.

[0147] It should be noted that the computer-readable medium described in this disclosure can be a computer-readable signal medium or a computer-readable storage medium, or any combination thereof. A computer-readable storage medium can be, for example,—but not limited to—an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination thereof. More specific examples of a computer-readable storage medium may include, but are not limited to: an electrical connection having one or more wires, a portable computer disk, a hard disk, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM or flash memory), optical fiber, portable compact disk read-only memory (CD-ROM), optical storage device, magnetic storage device, or any suitable combination thereof. In this disclosure, a computer-readable storage medium can be any tangible medium containing or storing a program that can be used by or in connection with an instruction execution system, apparatus, or device. In this disclosure, a computer-readable signal medium can include a data signal propagated in baseband or as part of a carrier wave, carrying computer-readable program code. Such propagated data signals can take various forms, including but not limited to electromagnetic signals, optical signals, or any suitable combination thereof. A computer-readable signal medium can be any computer-readable medium other than a computer-readable storage medium, which can send, propagate, or transmit a program for use by or in connection with an instruction execution system, apparatus, or device. The program code contained on the computer-readable medium can be transmitted using any suitable medium, including but not limited to: wires, optical fibers, RF (radio frequency), etc., or any suitable combination thereof.

[0148] The aforementioned computer-readable medium may be included in the aforementioned electronic device; or it may exist independently and not assembled into the electronic device.

[0149] The aforementioned computer-readable medium carries one or more programs, which, when executed by the electronic device, cause the electronic device to perform the methods shown in the above embodiments.

[0150] According to one aspect of this disclosure, a computer program product or computer program is provided, comprising computer instructions stored in a computer-readable storage medium. A processor of a computer device reads the computer instructions from the computer-readable storage medium and executes the computer instructions, causing the computer device to perform the signal processing methods provided in the various alternative implementations described above.

[0151] Computer program code for performing the operations of this disclosure can be written in one or more programming languages ​​or a combination thereof, including object-oriented programming languages ​​such as Java, Smalltalk, and C++, and conventional procedural programming languages ​​such as the "C" language or similar programming languages. The program code can be executed entirely on the user's computer, partially on the user's computer, as a standalone software package, partially on the user's computer and partially on a remote computer, or entirely on a remote computer or server. In cases involving remote computers, the remote computer can be connected to the user's computer via any type of network—including a local area network (LAN) or a wide area network (WAN)—or can be connected to an external computer (e.g., via the Internet using an Internet service provider).

[0152] The flowcharts and block diagrams in the accompanying drawings illustrate the architecture, functionality, and operation of possible implementations of systems, methods, and computer program products according to various embodiments of this disclosure. In this regard, each block in a flowchart or block diagram may represent a module, segment, or portion of code containing one or more executable instructions for implementing a specified logical function. It should also be noted that in some alternative implementations, the functions indicated in the blocks may occur in a different order than those indicated in the drawings. For example, two consecutively indicated blocks may actually be executed substantially in parallel, and they may sometimes be executed in reverse order, depending on the functions involved. It should also be noted that each block in the block diagrams and / or flowcharts, and combinations of blocks in the block diagrams and / or flowcharts, can be implemented using a dedicated hardware-based system that performs the specified function or operation, or using a combination of dedicated hardware and computer instructions.

[0153] The modules described in the embodiments of this disclosure can be implemented in software or in hardware. The name of a module does not necessarily limit the module itself; for example, module A can also be described as "module A for performing operation B".

[0154] The above description is merely a preferred embodiment of this disclosure and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of this disclosure is not limited to technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the above-described concept. For example, technical solutions formed by substituting the above features with (but not limited to) technical features disclosed in this disclosure that have similar functions.

Claims

1. A signal processing method applied to a multi-connectivity access point device, the method comprising: The method includes: When the BSS parameter change count information in the multi-connection ML information element indicates that the BSS parameter has changed, the Basic Service Set Disabling Identifier BSS Color Disable information is set to indicate that the BSS Color is disabled, and a target radio frame is sent; wherein the target radio frame carries the Basic Service Set Disabling Identifier BSS ColorDisable information of the multi-connection access point device. The method of transmitting the target wireless frame includes: In the communication connection of each of the multi-connection access point devices, the target radio frame is sent to the station corresponding to the communication connection respectively. The BSS Color Disable information is carried in the station configuration per-STA profile sub-element of the multi-connection ML information element in the target radio frame. and / or In at least one of the communication connections, the target radio frame is broadcast; the target radio frame carries BSS Color Disable information for other communication connections besides the stated communication connection.

2. The signal processing method of claim 1, wherein, When the target radio frame is sent to the station corresponding to the communication connection, the BSS Color Disable information is carried in the Link info sub-element of the ML information element.

3. The signal processing method of claim 1, wherein, In the case of broadcasting the target wireless frame The BSS Color Disable information is carried in the Enhanced Ultra High Throughput (EHT) operating element, which is carried in the target radio frame.

4. The signal processing method of claim 3, wherein, The BSS Color Disable information is carried in the EHT operation information sub-element of the EHT operation element.

5. The signal processing method according to claim 1, characterized in that, Before sending the target wireless frame, the method includes: Identify the target wireless frame.

6. A signal processing method applied to site equipment, characterized in that, The method includes: Receive a target radio frame sent by a multi-connection access point device; wherein the target radio frame carries the Basic Service Set Disabling (BSS) Color Disable information of the multi-connection access point device; Wherein, if the BSS parameter change count information in the multi-connection ML information element of the target radio frame indicates a change in the BSS parameter, the BSS Color Disable information is set to indicate that the BSS Color is disabled. The receiving of the target wireless frame sent by the multi-connection access point device includes: In a communication connection with a multi-connection access point device, a target radio frame sent by the multi-connection access point device is received; the BSS Color Disable information is carried in the per-STA profile sub-element of the multi-connection ML information element in the target radio frame. and / or The system receives the target radio frame broadcast by the multi-connection access point device; the target radio frame carries BSS Color Disable information for communication connections other than the communication connection in question.

7. The signal processing method according to claim 6, characterized in that, In a communication connection with a multi-connection access point device, when receiving a target radio frame sent by the multi-connection access point device, the BSS Color Disable information is carried in the Link info sub-element of the ML information element.

8. The signal processing method according to claim 6, characterized in that, In the case of receiving the target radio frame broadcast by the multi-connection access point device. The BSS Color Disable information is carried in the Enhanced Ultra High Throughput (EHT) operating element, which is carried in the target radio frame.

9. The signal processing method according to claim 8, characterized in that, The BSS Color Disable information is carried in the EHT operation information sub-element of the EHT operation element.

10. An access point device, wherein the access point device is a multi-connection access point device, characterized in that, The access point device includes: The sending module is configured to set the Basic Service Set Disable (BSS) Color Disable information to a state indicating BSS Color Disable when the BSS parameter change count information in the multi-connection ML information element indicates a BSS parameter change, and send a target radio frame; wherein the target radio frame carries the Basic Service Set Disable (BSS) Color Disable information of the multi-connection access point device. The sending module includes: The first transmitting submodule is used to transmit the target radio frame to the station corresponding to the communication connection in each of the communication connections of the multi-connection access point devices; the BSS Color Disable information is carried in the per-STA profile sub-element of the multi-connection ML information element in the target radio frame. and / or The second transmitting submodule is configured to broadcast the target radio frame in at least one of the communication connections; the target radio frame carries BSS Color Disable information for other communication connections besides the stated communication connection.

11. A site device, characterized in that, The site equipment includes: A receiving module is configured to receive a target radio frame sent by a multi-connection access point device; wherein the target radio frame carries a Basic Service Set Disable (BSS) Color Disable information of the multi-connection access point device; wherein, when the BSS parameter change count information in the multi-connection ML information element of the target radio frame indicates that the BSS parameter has changed, the BSS Color Disable information is set to indicate that the BSS Color is disabled. The receiving module includes: The first receiving submodule is used to receive a target radio frame sent by the multi-connection access point device in a communication connection with the multi-connection access point device; the BSS Color Disable information is carried in the site configuration per-STA profile sub-element of the multi-connection ML information element in the target radio frame; and / or The second receiving submodule is used to receive the target wireless frame broadcast by the multi-connection access point device; the target wireless frame carries BSS Color Disable information under other communication connections besides the communication connection.

12. A signal processing apparatus, said apparatus being applied to a multi-connection access point device, characterized in that, The signal processing device includes: A wireless frame transmission module is used to set the Basic Service Set Disable (BSS) Color Disable information to a state indicating BSS Color Disable when the BSS parameter change count information in the multi-connection ML information element indicates that the BSS parameter has changed, and then transmit a target wireless frame; wherein the target wireless frame carries the Basic Service Set Disable (BSS) Color Disable information of the multi-connection access point device. Specifically, the wireless frame transmission module is used for: In the communication connection of each of the multi-connection access point devices, the target radio frame is sent to the station corresponding to the communication connection respectively; the BSS Color Disable information is carried in the station configuration per-STA profile sub-element of the multi-connection ML information element in the target radio frame; and / or In at least one of the communication connections, the target radio frame is broadcast; the target radio frame carries BSS Color Disable information for other communication connections besides the stated communication connection.

13. A signal processing apparatus, characterized in that, The device is applied to site equipment, and the signal processing device includes: A wireless frame receiving module is used to receive a target wireless frame sent by a multi-connection access point device; wherein the target wireless frame carries a Basic Service Set Disable (BSS) Color Disable information of the multi-connection access point device; wherein, when the BSS parameter change count information in the multi-connection ML information element of the target wireless frame indicates that the BSS parameter has changed, the BSS Color Disable information is set to indicate that the BSS Color is disabled. Specifically, the wireless frame receiving module is used for: In a communication connection with a multi-connection access point device, a target radio frame sent by the multi-connection access point device is received; the BSS Color Disable information is carried in the per-STA profile sub-element of the multi-connection ML information element in the target radio frame. and / or The system receives the target radio frame broadcast by the multi-connection access point device; the target radio frame carries BSS Color Disable information for communication connections other than the communication connection in question.

14. An electronic device, characterized in that, It includes a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor, when executing the program, implements the method of any one of claims 1 to 9.

15. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores a computer program that, when executed by a processor, implements the method of any one of claims 1 to 9.

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