WO2025137880A1 - Communication method, access point device, and communication system - Google Patents

Abstract

Embodiments of the present invention relate to a communication method, an access point device, and a communication system. The communication method is executed by a shared access point device (shared AP) and comprises: determining a first wireless frame, wherein the first wireless frame comprises first identification information and second identification information, the first identification information being used for identifying that the frame type of the first wireless frame is a transmission opportunity return frame, and the second identification information being used for identifying TXS identification information of return transmission time by the shared AP to a sharing access point device (sharing AP), wherein the return transmission time of the Shared AP is time in a transmission opportunity shared by the Sharing AP to the Shared AP; and sending the first wireless frame. The present invention further improves TXOP sharing mechanisms.

Description

Communication method, access point device and communication system Technical Field

The present disclosure relates to the field of communication technology, and in particular to a communication method, an access point device, and a communication system.

Background Art

With the continuous development of Wi-Fi technology, the next generation of Wi-Fi technology has been proposed: Ultra High Reliability (UHR). In UHR technology, the access point device (AP) can share the transmission time of the transmission opportunity (TXOP) with other AP devices; after other AP devices obtain the transmission time, they can further share the transmission time with the associated station device (STA) device, so that the associated STA can perform non-triggered frame (Non-Triggered Based Sounding, Non-TB) data transmission or peer-to-peer (Peer To Peer, P2P) data transmission. Therefore, it is necessary to provide a TXOP processing method to improve the TXOP sharing mechanism and support UHR.

Summary of the invention

The embodiments of the present disclosure provide a communication method, an access point device, and a communication system to further improve the TXOP sharing mechanism.

In a first aspect, an embodiment of the present disclosure provides a communication method, which is performed by a shared access point device Shared AP, and the method includes:

Determine a first wireless frame; wherein the first wireless frame includes first identification information and second identification information, the first identification information is used to identify that the frame type of the first wireless frame is a transmission opportunity return frame; the second identification information is used to identify the TXS identification information of the Shared AP returning the transmission time to the sharing access point device Sharing AP; wherein the transmission time returned by the Shared AP is the time in the transmission opportunity shared by the Sharing AP to the Shared AP;

The first radio frame is sent.

In a second aspect, the embodiment of the present disclosure further provides a communication method, which is performed by a sharing access point device Sharing AP, and the method includes:

receiving a first wireless frame;

The first wireless frame includes first identification information and second identification information, the first identification information is used to identify that the frame type of the first wireless frame is a transmission opportunity return frame; the second identification information is used to identify the TXS identification information of the Shared AP returning the transmission time to the sharing access point device Sharing AP; wherein, the transmission time returned by the Shared AP is the time in the transmission opportunity shared by the Sharing AP to the Shared AP.

In a third aspect, the embodiment of the present disclosure further provides an access point device, wherein the access point device is a shared access point device Shared AP, including:

A determination module, used for determining a first wireless frame; wherein the first wireless frame includes first identification information and second identification information, the first identification information is used for identifying that the frame type of the first wireless frame is a transmission opportunity return frame; the second identification information is used for identifying the TXS identification information of the Shared AP returning the transmission time to the sharing access point device Sharing AP; wherein the transmission time returned by the Shared AP is the time in the transmission opportunity shared by the Sharing AP to the Shared AP;

A sending module is used to send the first wireless frame.

In a fourth aspect, the embodiments of the present disclosure further provide an access point device, wherein the access point device is a sharing access point device Sharing AP, comprising:

A receiving module, configured to receive a first wireless frame;

The first wireless frame includes first identification information and second identification information, the first identification information is used to identify that the frame type of the first wireless frame is a transmission opportunity return frame; the second identification information is used to identify the TXS identification information of the Shared AP returning the transmission time to the sharing access point device Sharing AP; wherein, the transmission time returned by the Shared AP is the time in the transmission opportunity shared by the Sharing AP to the Shared AP.

In a fifth aspect, an embodiment of the present disclosure further provides an access point device, including:

one or more processors;

The access point device is used to execute the communication method described in the first aspect or the second aspect of the embodiment of the present disclosure.

The embodiment of the present disclosure further provides a communication system, including a first access point device and a second access point device; wherein the first access point device is configured to implement the communication method described in the first aspect of the embodiment of the present disclosure, and the second access point device is configured to implement the communication method described in the second aspect of the embodiment of the present disclosure.

The embodiment of the present disclosure also provides a storage medium, which stores instructions. When the instructions are executed on a communication device, the communication device executes the communication method as described in the first aspect of the embodiment of the present disclosure, or executes the communication method as described in the second aspect of the embodiment of the present disclosure.

In the disclosed embodiment, the shared access point device Shared AP carries first identification information and second identification information in the first wireless frame, and the frame type of the first wireless frame is identified as a transmission opportunity return frame by the first identification information; the TXS identifier of the transmission time returned by the Shared AP to the sharing access point device Sharing AP is identified by the second identification information; wherein the transmission time returned by the Shared AP is the time in the transmission opportunity shared by the Sharing AP to the Shared AP; and the first wireless frame is sent; in this way, the Sharing AP that receives the first wireless frame can send a transmission opportunity return frame to the sharing access point device Sharing AP according to the Shared AP in the second identification information. The first wireless frame receives the TXS identifier of the transmission time returned by the Sharing AP, determines whether the TXS identifier is consistent with the TXS identifier of the transmission opportunity shared by the Sharing AP to the Shared AP, and if the two are consistent, re-holds the transmission time returned by the Shared AP, and performs data transmission within the re-held transmission time; at the same time, if the other device receiving the first wireless frame is a neighboring AP of the Sharing AP, it can suspend or postpone the data transmission process in the BSS where the channel-competing Sharing AP is located during the transmission time returned by the Shared AP to the Sharing AP, so as to avoid interfering with the data transmission process performed by the Sharing AP within the re-held transmission time.

Additional aspects and advantages of the embodiments of the present disclosure will be partially given in the description below, which will become apparent from the description below, or will be learned through the practice of the present disclosure.

BRIEF DESCRIPTION OF THE DRAWINGS

In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the drawings required for describing the embodiments are introduced below. The following drawings are only some embodiments of the present disclosure and do not impose specific limitations on the protection scope of the present disclosure.

FIG. 1a is one of exemplary schematic diagrams of an architecture of a communication system provided according to an embodiment of the present disclosure;

FIG1b is a second exemplary schematic diagram of the architecture of a communication system provided according to an embodiment of the present disclosure;

FIG2 is one of exemplary interaction schematic diagrams of a communication method provided according to an embodiment of the present disclosure;

FIG3 is a second exemplary interaction diagram of a communication method provided according to an embodiment of the present disclosure;

FIG4 is a flow chart of a communication method according to an embodiment of the present disclosure;

FIG5 is a second flow chart of a communication method according to an embodiment of the present disclosure;

FIG6 is a schematic diagram of a structure of an access point device according to an embodiment of the present disclosure;

FIG7 is a second schematic diagram of the structure of an access point device proposed in an embodiment of the present disclosure;

FIG8 is a schematic diagram of the structure of a terminal proposed in an embodiment of the present disclosure;

FIG. 9 is a schematic diagram of the structure of a chip proposed in an embodiment of the present disclosure.

DETAILED DESCRIPTION

The embodiments of the present disclosure provide a communication method, an access point device, and a communication system.

In a first aspect, an embodiment of the present disclosure provides a communication method, which is performed by a shared access point device Shared AP, and the method includes:

Determine a first wireless frame; wherein the first wireless frame includes first identification information and second identification information, the first identification information is used to identify that the frame type of the first wireless frame is a transmission opportunity return frame; the second identification information is used to identify the TXS identification information of the Shared AP returning the transmission time to the sharing access point device Sharing AP; wherein the transmission time returned by the Shared AP is the time in the transmission opportunity shared by the Sharing AP to the Shared AP;

The first radio frame is sent.

In the above embodiment, the shared access point device Shared AP carries the first identification information and the second identification information in the first wireless frame, and the frame type of the first wireless frame is identified as a transmission opportunity return frame by the first identification information; the TXS identifier of the transmission time returned by the Shared AP to the sharing access point device Sharing AP is identified by the second identification information; wherein the transmission time returned by the Shared AP is the time in the transmission opportunity shared by the Sharing AP to the Shared AP; and the first wireless frame is sent; in this way, the Sharing AP that receives the first wireless frame can determine whether the TXS identifier is consistent with the TXS identifier of the transmission opportunity shared by the Sharing AP to the Shared AP according to the TXS identifier of the transmission time returned by the Shared AP to the sharing access point device Sharing AP in the second identification information, and if the two are consistent, re-hold the transmission time returned by the Shared AP and perform data transmission within the re-held transmission time; at the same time, if the other device that receives the first wireless frame is a neighbor AP of Sharing AP102, it can suspend or postpone the data transmission process in its BSS during the transmission time returned by Shared AP101 to Sharing AP102, so as to avoid Sharing. The data transmission process performed by AP102 during the re-held transmission time causes interference.

In conjunction with some embodiments of the first aspect, in some embodiments,

The first identification information is carried in the Common Info field of the first radio frame; wherein the first identification information is set to a first parameter value, and the first identification information is used to identify that the frame type of the first radio frame is a transmission opportunity return frame;

The second identification information is carried in the user information field User Info field of the first wireless frame.

In the above embodiment, the device that receives the first wireless frame can parse the Common Info field and the User Info field of the first wireless frame to obtain information identified by the first identification information and the second identification information.

In combination with some embodiments of the first aspect, in some embodiments, before determining the first radio frame, the method further includes:

Receive a second wireless frame; wherein the second wireless frame includes third identification information, and the third identification information is used to identify TXS identification information of the Sharing AP sharing a transmission opportunity with the first AP; the first AP is a neighbor AP of the Sharing AP;

In response to the Shared AP determining that the identification information of the first AP matches the identification information of the Shared AP, a Clear to Send frame CTS frame is sent.

In the above embodiment, the third identification information carried in the second wireless frame identifies the TXS identification information of the Sharing AP sharing the transmission opportunity with the first AP. When the Shared AP that receives the second wireless frame determines that the identification information of the first AP matches the identification information of the Shared AP, it can determine that the Sharing AP has shared the transmission opportunity with the Shared AP and sends a CTS frame to inform the neighbor AP of the Shared AP that the Shared AP is about to communicate within the transmission time indicated by the transmission opportunity shared by the Sharing AP to the Shared AP, thereby avoiding interference of the neighbor AP of the Shared AP with the upcoming communication process of the Shared AP.

In combination with some embodiments of the first aspect, in some embodiments, the first radio frame is used to indicate at least one of the following operations:

Instruct the Sharing AP to re-hold the transmission time returned by the Shared AP;

Instructing the second AP to update the network configuration vector NAV of the second AP to zero; wherein the second AP is a neighbor AP of the Shared AP, and the second AP is not a neighbor AP of the Sharing AP;

Instruct a third AP to determine whether to update the NAV of the third AP based on the first wireless frame; wherein the third AP is a common neighbor AP of the Sharing AP and the Shared AP.

In the above embodiment, the second AP is a neighbor AP of the Shared AP, and the second AP is not a neighbor AP of the Sharing AP; the third AP is a common neighbor AP of the Sharing AP and the Shared AP; the Sharing AP is instructed to re-hold the transmission time returned by the Shared AP through the first wireless frame; the second AP is instructed to update the network configuration vector NAV of the second AP to zero; the third AP is instructed to determine whether to update the NAV of the third AP according to the first wireless frame; in this way, the Sharing AP can re-hold the transmission time returned by the Shared AP, and at the same time, avoid the third AP from interfering with the communication process of the Sharing AP during the transmission time returned by the re-held Shared AP; and the Shared AP ends the communication process, and the second AP can also re-compete for the channel.

In combination with some embodiments of the first aspect, in some embodiments, the instructing the third AP to determine whether to update the NAV of the third AP according to the first radio frame includes:

Instructing the third AP to update the NAV of the third AP to zero; wherein the TXS identification information in the second identification information indicating that the Shared AP returns the transmission time to the Sharing AP and the TXS identification information in the third identification information indicating that the Sharing AP shares the transmission opportunity with the first AP do not match;

or

Instruct the third AP not to update the NAV of the third AP; wherein the TXS identification information in the second identification information identifying the Shared AP returning the transmission time to the Sharing AP and the TXS identification information in the third identification information identifying the Sharing AP sharing the transmission opportunity with the first AP match.

In the above embodiment, when the second identification information and the third identification information are different, that is, the transmission time returned by the Shared AP is not the time in the transmission opportunity shared by the Sharing AP to the Shared AP, the third AP can re-compete for the channel, that is, the NAV of the third AP can be updated to zero, which will not interfere with the transmission process within the transmission time returned by the Shared AP;

When the second identification information and the third identification information are the same, that is, the transmission time returned by the Shared AP is the time in the transmission opportunity shared by the Sharing AP to the Shared AP, the third AP cannot re-compete for the channel, that is, it is necessary to maintain the NAV of the third AP and not update the NAV of the third AP to avoid interfering with the transmission process of the Sharing AP within the transmission time returned by the Shared AP.

In combination with some embodiments of the first aspect, in some embodiments, the CTS frame includes a duration field Duration field,

The Duration field indicates that the fourth AP does not update the NAV of the fourth AP when determining that the NAV of the fourth AP is greater than or equal to the value indicated by the Duration field; the fourth AP is a neighbor AP of the Shared AP;

or

The Duration field indicates that the fourth AP determines that the NAV of the fourth AP is less than the value indicated by the Duration field. When the value is set to 0, the NAV of the fourth AP is updated.

In the above embodiment, the fourth AP is a neighbor AP of the Shared AP; the Duration field in the CTS frame indicates that when the fourth AP determines that the NAV of the fourth AP is greater than or equal to the value indicated by the Duration field, the fourth AP does not update the NAV of the fourth AP; or when the fourth AP determines that the NAV of the fourth AP is less than the value indicated by the Duration field, the fourth AP's NAV is updated; this can prevent the neighbor AP of the Shared AP from interfering with the communication process of the Shared AP during the transmission time shared by the Sharing AP to the Shared AP.

In combination with some embodiments of the first aspect, in some embodiments, the third identification information is carried in the User Info field of the second wireless frame.

In the above embodiment, the third identification information is carried by the User Info field of the second wireless frame, so that the device receiving the second wireless frame can obtain the information identified by the third identification information by parsing the User Info field of the second wireless frame.

In combination with some embodiments of the first aspect, in some embodiments, after sending a confirmation sending frame CTS frame, the method further includes:

During the transmission time indicated by the transmission opportunity shared by the Sharing AP to the Shared AP, the Shared AP transmits data within the basic service set BSS where the Shared AP is located.

In the above embodiment, the third identification information carried in the second wireless frame identifies that the Sharing AP shares the transmission opportunity with the first AP. When the Shared AP that receives the second wireless frame determines that the identification information identifying the first AP in the third identification information matches the identification information identifying the Shared AP in the second identification information, it can be determined that the Sharing AP shares the transmission opportunity with the Shared AP; and perform data transmission within the basic service set BSS where the Shared AP is located within the transmission time indicated by the transmission opportunity shared by the Sharing AP to the Shared AP.

In a second aspect, the present disclosure provides a communication method, which is performed by a sharing access point device Sharing AP, and the method includes:

receiving a first wireless frame;

The first wireless frame includes first identification information and second identification information, the first identification information is used to identify that the frame type of the first wireless frame is a transmission opportunity return frame; the second identification information is used to identify the TXS identification information of the Shared AP returning the transmission time to the sharing access point device Sharing AP; wherein, the transmission time returned by the Shared AP is the time in the transmission opportunity shared by the Sharing AP to the Shared AP.

In combination with some embodiments of the second aspect, in some embodiments, the first identification information is carried in a Common Info field of the first radio frame; wherein the first identification information is set to a first parameter value, and the first identification information is used to identify that the frame type of the first radio frame is a transmission opportunity return frame;

The second identification information is carried in the user information field User Info field of the first wireless frame.

In combination with some embodiments of the second aspect, in some embodiments, before receiving the first radio frame, the method further includes:

Determine a second wireless frame; wherein the second wireless frame identifies that the Sharing AP shares a transmission opportunity with the first AP; the second wireless frame includes third identification information, and the third identification information is used to identify TXS identification information that the Sharing AP shares a transmission opportunity with the first AP; the first AP is a neighbor AP of the Sharing AP;

The second radio frame is sent.

In combination with some embodiments of the second aspect, in some embodiments, after receiving the first radio frame, the method further includes:

Re-hold the transmission time returned by the Shared AP.

In combination with some embodiments of the second aspect, in some embodiments, the second radio frame is used to indicate at least one of the following operations:

Instructing the first AP to perform data transmission within the BSS where the first AP is located within the transmission time indicated by the transmission opportunity shared by the Sharing AP to the first AP;

Instruct the fifth AP to update the NAV of the fifth AP to the value indicated by the duration field in the second wireless frame; the fifth AP is an AP among the neighbor APs of the Sharing AP that is not the first AP.

In the above embodiment, the fifth AP is an AP among the neighboring APs of the Sharing AP that is not the first AP. The second wireless frame instructs the first AP to transmit data within the BSS where the first AP is located within the transmission time indicated by the transmission opportunity shared by the Sharing AP to it. At the same time, the fifth AP is instructed to update its NAV to the value indicated by the duration field in the second wireless frame. In this way, the fifth AP can be prevented from interfering with the communication process of the first AP within the transmission time indicated by the transmission opportunity shared by the Sharing AP to the first AP.

In combination with some embodiments of the second aspect, in some embodiments, the third identification information is carried in the User Info field of the second wireless frame.

In a third aspect, the embodiments of the present disclosure further provide an access point device, which is a shared access point device Shared AP, comprising at least one of a determination module and a sending module; wherein the Shared AP is used to execute the optional implementation method of the first aspect.

In a fourth aspect, the embodiments of the present disclosure further provide an access point device, which is a sharing access point device Sharing AP, comprising a receiving module; wherein the above-mentioned Sharing AP is used to execute the optional implementation method of the second aspect.

In a fifth aspect, an embodiment of the present disclosure further provides an access point device, including:

one or more processors;

The access point device is used to execute an optional implementation method of the first aspect or the second aspect in the embodiment of the present disclosure.

In a sixth aspect, an embodiment of the present disclosure further provides a communication system, comprising a first access point device and a second access point device; wherein the first access point device is configured to execute the optional implementation method as described in the first aspect, and the second access point device is configured as the optional implementation method as described in the second aspect.

In a seventh aspect, an embodiment of the present disclosure further provides a storage medium storing instructions, which, when executed on a communication device, enables the communication device to execute an optional implementation as described in the first aspect or the second aspect.

In an eighth aspect, an embodiment of the present disclosure proposes a program product. When the program product is executed by a communication device, the communication device executes the method described in the optional implementation manner of the first aspect or the second aspect.

In a ninth aspect, an embodiment of the present disclosure proposes a computer program, which, when executed on a computer, enables the computer to execute the method described in the optional implementation of the first aspect or the second aspect.

In a tenth aspect, an embodiment of the present disclosure provides a chip or a chip system. The chip or chip system includes a processing circuit configured to execute the method described in the optional implementation of the first aspect or the second aspect.

It is understandable that the above-mentioned access point device, communication system, storage medium, program product, computer program, chip or chip system are all used to execute the method proposed in the embodiment of the present disclosure. Therefore, the beneficial effects that can be achieved can refer to the beneficial effects in the corresponding method, which will not be repeated here.

The embodiments of the present disclosure provide a communication method, an access point device and a communication system. In some embodiments, the terms such as communication method, signal transmission method, wireless frame transmission method, etc. can be replaced with each other, and the terms such as information processing system, communication system, etc. can be replaced with each other.

The embodiments of the present disclosure are not exhaustive, but are only illustrative of some embodiments, and are not intended to be a specific limitation on the scope of protection of the present disclosure. In the absence of contradiction, each step in a certain embodiment can be implemented as an independent embodiment, and the steps can be arbitrarily combined. For example, a solution after removing some steps in a certain embodiment can also be implemented as an independent embodiment, and the order of the steps in a certain embodiment can be arbitrarily exchanged. In addition, the optional implementation methods in a certain embodiment can be arbitrarily combined; in addition, the embodiments can be arbitrarily combined, for example, some or all of the steps of different embodiments can be arbitrarily combined, and a certain embodiment can be arbitrarily combined with the optional implementation methods of other embodiments.

In each embodiment of the present disclosure, unless otherwise specified or there is a logical conflict, the terms and/or descriptions between the embodiments are consistent and can be referenced to each other, and the technical features in different embodiments can be combined to form a new embodiment based on their internal logical relationships.

The terms used in the embodiments of the present disclosure are only for the purpose of describing specific embodiments and are not intended to limit the present disclosure.

In the embodiments of the present disclosure, “plurality” refers to two or more.

In some embodiments, the terms "at least one of", "one or more", "a plurality of", "multiple", etc. can be used interchangeably.

In some embodiments, "at least one of A and B", "A and/or B", "A in one case, B in another case", "in response to one case A, in response to another case B", etc., may include the following technical solutions according to the situation: in some embodiments, A (A is executed independently of B); in some embodiments, B (B is executed independently of A); in some embodiments, execution is selected from A and B (A and B are selectively executed); in some embodiments, A and B (both A and B are executed). When there are more branches such as A, B, C, etc., the above is also similar.

In some embodiments, the description method such as "A or B" may include the following technical solutions according to the situation: In some embodiments, A (A is executed independently of B); in some embodiments, B (B is executed independently of A); in some embodiments, execution is selected from A and B (A and B are selectively executed). When there are more branches such as A, B, C, etc., the above is also similar.

The prefixes such as "first" and "second" in the embodiments of the present disclosure are only used to distinguish different description objects, and do not constitute restrictions on the position, order, priority, quantity or content of the description objects. The statement of the description object refers to the description in the context of the claims or embodiments, and should not constitute unnecessary restrictions due to the use of prefixes. For example, if the description object is a "field", the ordinal number before the "field" in the "first field" and the "second field" does not limit the position or order between the "fields", and the "first" and "second" do not limit whether the "fields" they modify are in the same message, nor do they limit the order of the "first field" and the "second field". For another example, if the description object is a "level", the ordinal number before the "level" in the "first level" and the "second level" does not limit the priority between the "levels". For another example, the number of description objects is not limited by the ordinal number, and can be one or more. Taking the "first device" as an example, the number of "devices" can be one or more. In addition, the objects modified by different prefixes may be the same or different. For example, if the description object is "device", then the "first device" and the "second device" may be the same device or different devices, and their types may be the same or different. For another example, if the description object is "information", then the "first information" and the "second information" may be the same information or different information, and their contents may be the same or different.

In some embodiments, “including A”, “comprising A”, “used to indicate A”, and “carrying A” can be interpreted as directly carrying A or indirectly indicating A.

In some embodiments, terms such as "in response to ...", "in response to determining ...", "in the case of ...", "at the time of ...", "when ...", "if ...", "if ...", etc. can be used interchangeably.

In some embodiments, terms such as "greater than", "greater than or equal to", "not less than", "more than", "more than or equal to", "not less than", "higher than", "higher than or equal to", "not lower than", and "above" can be replaced with each other, and terms such as "less than", "less than or equal to", "not greater than", "less than", "less than or equal to", "no more than", "lower than", "lower than or equal to", "not higher than", and "below" can be replaced with each other.

In some embodiments, devices and equipment may be interpreted as physical or virtual, and their names are not limited to the names recorded in the embodiments. In some cases, they may also be understood as "equipment", "device", "circuit", "network element", "node", "function", "unit", "section", "system", "network", "chip", "chip system", "entity", "subject", etc.

In some embodiments, "network" can be interpreted as devices included in the network, such as access network equipment, core network equipment, etc.

In some embodiments, acquisition of data, information, etc. may comply with the laws and regulations of the country where the data is obtained.

In some embodiments, data, information, etc. may be obtained with the user's consent.

In addition, each element, each row, or each column in the table of the embodiments of the present disclosure may be implemented as an independent embodiment, and the combination of any elements, any rows, and any columns may also be implemented as an independent embodiment.

FIG. 1a and FIG. 1b are schematic diagrams of the architecture of a communication system according to an embodiment of the present disclosure.

As shown in Fig. 1a, the communication system 100 includes a shared access point device Shared AP (Access Point, AP) 101, a sharing access point device Sharing AP 102, a second AP 103, and a third AP 104. Referring to Fig. 1a and Fig. 1b, the neighbor APs of Shared AP 101 include Sharing AP 101, the second AP 103, and the third AP 104, and the neighbor APs of Sharing AP 102 include Shared AP 101 and the third AP 104, wherein the second AP 103 is the neighbor AP of the Shared AP 101, and the second AP is not the neighbor AP of the Sharing AP 102, and the second AP 103 cannot receive the wireless frame sent by the Sharing AP 102; the third AP 104 is the common neighbor AP of the Sharing AP 102 and the Shared AP 101.

In some embodiments, based on the AP-2-STA (AP to STA) triggered TXOP Sharing (TXS, transmission opportunity sharing) mechanism, the next generation Wi-Fi standard working group 802.11bn proposed an AP-2-AP (AP to AP) TXOP Sharing method to achieve coordination between multiple APs to improve the reasonable allocation of communication resources, improve access efficiency, and achieve better network performance. In the TXS mechanism based on AP-2-AP triggering, the AP that holds a TXOP and shares part of the TXOP with a neighboring AP is called a Sharing AP, and the AP that shares the TXOP with the Sharing AP is called a Shared AP.

In some embodiments, Shared AP101, Sharing AP102, the second AP103 and the third AP104 can be access points for mobile terminals to enter the wired network. AP is equivalent to a bridge connecting the wired network and the wireless network. Its main function is to connect various wireless network clients together and then connect the wireless network to the Ethernet. Specifically, AP can be a terminal device or a network device with a wireless fidelity chip. Optionally, AP can support multiple WLAN standards such as 802.11ax, 802.11be, 802.11ac, 802.11n, 802.11g, 802.11b and 802.11a, 802.11bf, 802.11bn, and support the next generation 802.11 protocol, but is not limited to this.

Optionally, in the embodiments of the present disclosure, AP and STA (Station, station device) can be devices supporting multiple connections, for example, they can be respectively represented as multi-connection access point device (Access Point Multi-Link Device, AP MLD) and multi-connection site device (Non-Access Point Multi-Link Device, Non-AP MLD); AP MLD can represent an access point supporting multi-connection communication functions, and non-AP MLD can represent a site supporting multi-connection communication functions.

In some embodiments, the station device includes, for example, a wireless communication chip, a wireless sensor, or a wireless communication chip that supports Wi-Fi communication function. Optionally, the wireless communication terminal is, for example, a mobile phone, a wearable device, an Internet of Things device supporting Wi-Fi communication function, a car with WiFi communication function, a smart car, a tablet computer, a computer with wireless transceiver function, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal device in industrial control, a wireless terminal device in self-driving, a wireless terminal device in remote medical surgery, a wireless terminal device in smart grid, a wireless terminal device in transportation safety, a wireless terminal device in smart city, and a wireless terminal device in smart home, but is not limited thereto.

Specifically, the site device may be a terminal device or a network device with a wireless fidelity (Wi-Fi) chip. Optionally, the site device may support multiple WLAN standards such as 802.11ax, 802.11be, 802.11ac, 802.11n, 802.11g, 802.11b, 802.11a, 802.11bf, 802.11bn, and support the next generation 802.11 protocol, but is not limited thereto.

It can be understood that the communication system described in the embodiment of the present disclosure is for the purpose of more clearly illustrating the technical solution of the embodiment of the present disclosure, and does not constitute a limitation on the technical solution proposed in the embodiment of the present disclosure. A person of ordinary skill in the art can know that with the evolution of the system architecture and the emergence of new business scenarios, the technical solution proposed in the embodiment of the present disclosure is also applicable to similar technical problems.

The following embodiments of the present disclosure may be applied to the communication system 100 shown in FIG1 , or part of the subject, but are not limited thereto. The subjects shown in FIG1 are examples, and the communication system may include all or part of the subjects in FIG1 , or may include other subjects other than FIG1 , and the number and form of the subjects are arbitrary, and the subjects may be physical or virtual, and the connection relationship between the subjects is an example, and the subjects may be connected or disconnected, and the connection may be in any manner, and may be a direct connection or an indirect connection, and may be a wired connection or a wireless connection.

The embodiments of the present disclosure can be applied to a wireless local area network (WLAN), such as a local area network using the 802.11 series of protocols. In a WLAN, a basic service set (BSS) is a basic component of a WLAN. A BSS network is composed of station devices with certain associations within a specific coverage area. One case of association is that stations communicate directly with each other in an ad hoc network, which is called an independent BSS (IBSS). Another more common case is that in a BSS network, there is only one central station with a full-time management of the BSS, which is called an access point device, and other stations in the BSS network that are not APs are called terminals, also called non-AP STAs, and APs and non-AP STAs are collectively referred to as STAs. When describing STAs, there is no need to distinguish between APs and non-AP STAs. In the same BSS network, due to distance, transmission power, etc., a STA cannot detect other STAs that are far away from it, and the two are hidden nodes of each other.

FIG. 2 and FIG. 3 are interactive schematic diagrams of a communication method according to an embodiment of the present disclosure.

As shown in FIG. 2 , the method includes:

Step 201, Sharing AP102 determines a second wireless frame; wherein, the second wireless frame includes third identification information, and the third identification information is used to identify the TXS identification information of the Sharing AP102 sharing the transmission opportunity with the first AP; the first AP is a neighbor AP of the Sharing AP;.

Optionally, the second wireless frame may be a MU-RTS TXS Trigger frame or a MU-RTS TXS Trigger modification frame.

In the disclosed embodiment, the third identification information is carried in the User Info field of the second radio frame. The User Info field includes the first identification field; wherein the third identification information includes the first identification field.

As an example, the format of the User Info field in the MU-RTS TXS Trigger frame is shown in Table 1.

Table 1:

In Table 1, the AID12 field and the AP Identifier field share the fields indicated by B0 to B11 in the User Info field, occupying 12 bits. Among them, when the fields indicated by B0 to B11 in the User Info field include the AP Identifier field, the device that shares the transmission opportunity with Sharing AP102 is identified as STA, and the AID12 field identifies the identification information of the STA (for example, the MAC (Media Access Control, media access control) address information of the STA or the MAC address information of the non-AP MLD to which the STA is attached). When the fields indicated by B0 to B11 in the User Info field include the AP Identifier field, the identification information of the target Shared AP that shares the transmission opportunity with Sharing AP102 is identified (for example, the MAC address information of the AP or the MAC address information of the AP MLD to which the AP is attached).

The RU Allocation (resource unit Allocation) field occupies 8 bits in the User Info field, and the corresponding bit sequence is B12 to B19; the Allocation Duration (allocation duration) field occupies 9 bits in the User Info field, and the corresponding bit sequence is B20 to B28, which identifies the transmission opportunity duration shared by Sharing AP102 to the first AP; The first identification field occupies 6 bits in the User Info field, and the corresponding bit order is B29 to B34, which identifies the TXS identifier of the transmission opportunity shared by Sharing AP102 to the first AP; the Reserved field occupies 4 bits in the User Info field, and the corresponding bit order is B35 to B38; the PS160 field indicates the master-slave (primary channel, secondary channel) 160, occupies 1 bit in the User Info field, and the corresponding bit order is B39.

Optionally, when the first identification field is set to different values, different TXS identifications are identified. In the embodiment of the present disclosure, when the first identification field occupies 6 bits in the User Info field, up to 64 different shared transmission opportunities can be identified. For example, the first identification field can be set to "000000", identifying the TXS identification information of Sharing AP102 sharing the transmission opportunity with AP1; the first identification field can be set to "000001", identifying the TXS identification information of Sharing AP102 sharing the transmission opportunity with AP2; the first identification field can be set to "000010", identifying the TXS identification information of Sharing AP102 sharing the transmission opportunity with AP3; the first identification field can be set to "000011", identifying the TXS identification information of Sharing AP102 sharing the transmission opportunity with AP4; the number of bits occupied by the first identification field can be other values, which is not limited in the embodiment of the present disclosure.

Optionally, Sharing AP102 can share the transmission opportunity with one or more first APs, and each first AP has a one-to-one correspondence with the aforementioned AID12/AP Identifier field, Allocation Duration field and third identification information. That is, each first AP has its corresponding AID12/AP Identifier field, Allocation Duration field and third identification information.

For example, if Sharing AP102 shares transmission opportunities with AP1, AP2, AP3, and AP4 at the same time, that is, the first AP includes AP1, AP2, AP3, and AP4, then the first wireless frame includes: the AID12/AP Identifier field, Allocation Duration field, and the third identification information corresponding to AP1, the AID/AP Identifier field, Allocation Duration field, and the third identification information corresponding to AP2, the AID/AP Identifier field, Allocation Duration field, and the third identification information corresponding to AP3, and the AID12/AP Identifier field, Allocation Duration field, and the third identification information corresponding to AP4.

In which, when the first AP includes multiple ones, the duration of the transmission opportunity shared by Sharing AP102 to each first AP, that is, the duration information indicated by the Allocation Duration field may be different.

Taking the above-mentioned Sharing AP102 sharing transmission opportunities with AP1, AP2, AP3, and AP4 at the same time as an example, if the transmission opportunity held by Sharing AP102 is 16ms, then Sharing AP102 can share 2ms (milliseconds) to 5ms of transmission opportunities with AP1 (duration is 3ms), 5ms to 7ms of transmission opportunities with AP2 (duration is 2ms), 7ms to 11ms of transmission opportunities with AP3 (duration is 4ms), and 11ms to 15ms of transmission opportunities with AP4 (duration is 4ms).

In an embodiment of the present disclosure, the second radio frame is used to indicate at least one of the following operations:

Instructing the first AP to perform data transmission within the BSS where the first AP is located within the transmission time indicated by the transmission opportunity shared by the Sharing AP 102 to the first AP;

Instruct the fifth AP to update the NAV of the fifth AP to the value indicated by the duration field in the second wireless frame; the fifth AP is an AP among the neighbor APs of the Sharing AP102 that is not the first AP.

Step 202, Sharing AP102 sends a second wireless frame to the neighbor AP of Sharing AP102.

Optionally, after Sharing AP102 sends the second wireless frame to the neighboring AP of Sharing AP102, Sharing AP102 suspends or postpones the data transmission process in the BSS. Specifically, the duration for which Sharing AP102 suspends or postpones the data transmission process in the BSS may be: the transmission duration identified by the Duration field in the second wireless frame.

Step 203, Shared AP101 sends a clear to send frame CTS (clear to send) frame to the neighbor AP of Shared AP101 when the identification information of the first AP matches the identification information of the Shared AP101.

As an example, after receiving the second wireless frame, Shared AP101 can determine whether the identification information of the first AP identified by the AID12/AP Identifier field carried by the second wireless frame is the same as the identification information of Shared AP101. When the two are the same, it can be determined that Shared AP101 is included in the first AP, that is, Sharing AP102 shares the transmission opportunity with Shared AP101, and Shared AP101 can hold the transmission opportunity shared by Sharing AP102 with Shared AP101. The specific transmission opportunity held is the transmission opportunity identified by the Allocation Duration field in the second wireless frame corresponding to the identification information of Shared AP101.

Optionally, Shared AP101 can send a CTS frame to Shared AP101's neighbor AP within the transmission time indicated by the transmission opportunity shared by Sharing AP102 to Shared AP101.

In the disclosed embodiment, the CTS frame includes a duration field Duration field.

The Duration field indicates that the fourth AP does not update the NAV of the fourth AP when determining that the NAV of the fourth AP is greater than or equal to the value indicated by the Duration field; the fourth AP is a neighbor AP of the Shared AP101;

or

The Duration field indicates that the fourth AP updates the NAV of the fourth AP when determining that the NAV of the fourth AP is less than the value indicated by the Duration field.

Optionally, the value indicated by the Duration field is the duration required for Shared AP101 to transmit data within the basic service set BSS (hereinafter referred to as BSS2) where Shared AP101 is located.

Optionally, when the NAV of the fourth AP is greater than or equal to the value indicated by the Duration field, when Shared AP101 performs data transmission in BSS2, the fourth AP always considers that the channel is busy, does not compete for the channel, and does not interfere with the data transmission process of Shared AP101 in BSS2. When the NAV of the fourth AP is less than the value indicated by the Duration field, when Shared AP101 has not completed data transmission in BSS2 (specifically, after the NAV of the fourth AP becomes zero), the fourth AP may mistakenly consider that the channel is idle and start to compete for the channel, causing interference with the data transmission process of Shared AP101 in BSS2.

In view of this, in the above embodiment, Duration field indicates that the fourth AP does not update the NAV of the fourth AP when it determines that the NAV of the fourth AP is greater than or equal to the value indicated by the Duration field; the fourth AP is a neighbor AP of the Shared AP101; Duration field indicates that the fourth AP updates the NAV of the fourth AP when it determines that the NAV of the fourth AP is less than the value indicated by the Duration field, which can avoid the fourth AP from interfering with the data transmission process of Shared AP101 in BSS2.

Optionally, the Duration field indicates that when the fourth AP determines that the NAV of the fourth AP is less than the value indicated by the Duration field, the fourth AP updates the NAV of the fourth AP to the value indicated by the Duration field.

Step 204, Shared AP101 transmits data within the basic service set BSS where the Shared AP101 is located within the transmission time indicated by the transmission opportunity shared by the Sharing AP102 to the Shared AP101.

Optionally, Shared AP101 can transmit data with the AP or STA associated with Shared AP101 within the basic service set (i.e., the above-mentioned BSS2); the present disclosed embodiment is not limited to this.

Optionally, after Shared AP101 completes data transmission in the basic service set BSS where the Shared AP101 is located within the transmission time indicated by the transmission opportunity shared by the Sharing AP102 to the Shared AP101, if there is remaining transmission time, step 205 may be executed.

In step 205, Shared AP101 determines a first wireless frame; wherein the first wireless frame includes first identification information and second identification information, the first identification information is used to identify that the frame type of the first wireless frame is a transmission opportunity return frame; the second identification information is used to identify the TXS identification information of the Shared AP101 returning the transmission time to the sharing access point device Sharing AP102; wherein the transmission time returned by the Shared AP101 is the time in the transmission opportunity shared by the Sharing AP102 to the Shared AP101.

After receiving the TXOP shared by Sharing AP102, Shared AP101 transmits data in the TXOP; Sharing AP102 will suspend or postpone data transmission in the BSS in which it is located in the TXOP. However, when the TXOP shared by Sharing AP102 to Shared AP101 is longer, or Shared AP101 completes data transmission in advance in the TXOP shared by Sharing AP102, part of the shared TXOP will be idle, resulting in a waste of resources.

To this end, in the disclosed embodiment, Shared AP101 carries first identification information and second identification information in the first wireless frame, and identifies the frame type of the first wireless frame as a transmission opportunity return frame through the first identification information, and identifies the TXS identifier of the transmission time returned by Shared AP101 to Sharing AP102 through the second identification information, and the transmission time returned by Shared AP101 is the time in the transmission opportunity shared by Sharing AP102 to Shared AP101, specifically: after Shared AP101 completes data transmission in advance, the remaining transmission time in the transmission opportunity shared by Sharing AP102 to Shared AP101; in this way, Shared AP101 can return the remaining TXOP to Sharing AP102 in time when Sharing AP102 completes data transmission in advance within the TXOP shared to it, thereby avoiding waste of communication resources.

Optionally, the first wireless frame may be a MU-RTS TXS Trigger frame or a MU-RTS TXS Trigger modification frame.

In an embodiment of the present disclosure, the first identification information is carried in the Common Info field of the first radio frame; wherein the first identification information is set to a first parameter value, and the first identification information is used to identify that the frame type of the first radio frame is a transmission opportunity return frame;

The second identification information is carried in the user information field User Info field of the first wireless frame.

Optionally, the Common Info field may include a first identifier, and the first identifier may occupy 1 bit in the Common Info field. The first identification information is the first identifier.

As an example, the first parameter value may be set to 0, that is, when the first identifier is set to 0, the first identifier identifies that the frame type of the first radio frame is a transmission opportunity return frame. When the first identifier is not set to 0, the first identifier identifies that the frame type of the first radio frame is not a transmission opportunity return frame.

Optionally, the format of the User Info field is as shown in Table 1 above and will not be elaborated here.

Optionally, the User Info field may include a second identification field, the second identification field occupies 6 bits in the User Info field, and the corresponding bit sequence is B29 to B34. The second identification information is the second identification field.

Optionally, when the second identification field is set to different values, different TXS identifications are identified. In the embodiment of the present disclosure, when the second identification field occupies 6 bits in the User Info field, up to 64 different shared transmission opportunities can be identified. For example, the first identification field can be set to "000000", which identifies the transmission opportunity of Sharing AP102 to AP1; the second identification field can be set to "000100", which identifies the TXS identification information of Sharing AP102 to AP1; the second identification field can be set to "000101", which identifies the TXS identification information of Sharing AP102 to AP2; the second identification field can be set to "000110", which identifies the TXS identification information of Sharing AP102 to AP3; the second identification field can be set to "000111", which identifies the TXS identification information of Sharing AP102 to AP4; the number of bits occupied by the first identification field can be other values, which are not limited in the embodiment of the present disclosure.

Optionally, when any two APs share or return transmission opportunities, the corresponding TXS identification information is the same. For example, the TXS identification information of AP1 sharing a transmission opportunity with AP2 and the TXS identification information of AP2 returning a transmission opportunity to AP1 are the same, for example, "100000".

In the above embodiment, the AP that receives the first wireless frame can parse the Common Info field and the User Info field of the first wireless frame to obtain the information respectively identified by the first identification information and the second identification information. In this way, Sharing AP102 that receives the first wireless frame can re-hold the transmission time returned by Shared AP101. At the same time, if the other device that receives the first wireless frame is a neighbor AP of Sharing AP102, it can suspend or postpone the data transmission process in the BSS where the neighbor AP is located during the transmission time returned by Shared AP101 to Sharing AP102, so as to avoid interfering with the data transmission process of Sharing AP102 during the re-held transmission time.

Optionally, if the common neighbor AP of Shared AP101 and Sharing AP102 mistakenly believes that the channel is idle after receiving the first wireless frame and starts to compete for the channel, Sharing AP102 may be unable to regain the transmission time returned by Shared AP101, or may interfere with the data transmission process of Sharing AP102 in the remaining time returned by Shared AP101. In view of this, in the embodiment of the present disclosure, the first wireless frame is used to indicate at least one of the following operations:

Instruct the Sharing AP102 to re-hold the transmission time returned by the Shared AP101;

Instruct the second AP103 to update the network configuration vector NAV of the second AP103 to zero; wherein the second AP103 is a neighbor AP of the Shared AP101, and the second AP103 is not a neighbor AP of the Sharing AP102;

Instruct the third AP104 to determine whether to update the NAV of the third AP104 according to the first wireless frame; wherein the third AP104 is a common neighbor AP of the Sharing AP102 and the Shared AP101.

In the above embodiment, although the second AP103 is a neighbor AP of Shared AP101, it is not a neighbor AP of Sharing AP102, that is, the second AP103 is not within the communication range of Sharing AP102, the data transmission process of the second AP103 in the BSS where it is located (hereinafter referred to as the data transmission process in BSS4) will not interfere with the data transmission process of Sharing AP102 in the remaining time returned by Shared AP101 (hereinafter referred to as the data transmission process in BSS1), and, since the second AP103 is not a neighbor AP of Sharing AP102, the second AP103 will not receive the second wireless frame before receiving the first wireless frame; therefore, the first wireless frame can instruct the second AP103 to update the NAV of the second AP103 to zero, that is, the second AP103 can resume competing for the channel after Shared AP102 completes the data transmission, without having to continuously suspend or postpone the data transmission process in BSS4, thereby avoiding wasting communication resources.

Since the third AP104 is a common neighbor AP of Sharing AP102 and Shared AP101, that is, the third AP104 is within the communication range of Sharing AP102, the data transmission process performed by the third AP104 in the BSS where it is located (hereinafter referred to as the data transmission process in BSS3) will interfere with the data transmission process in BSS1. Therefore, the first wireless frame can instruct the third AP104 to determine whether to update the NAV of the third AP104 according to whether Shared AP101 returns the remaining transmission time to Sharing AP102, so as to avoid the third AP104 interfering with the data transmission process of Sharing AP102 in BSS1 when Shared AP101 returns the remaining transmission time to Sharing AP102.

Optionally, the instructing the third AP 104 to determine whether to update the NAV of the third AP 104 according to the first radio frame includes:

instructing the third AP104 to update the NAV of the third AP104 to zero when the TXS identification information in the second identification information identifying that the Shared AP101 returns the transmission time to the Sharing AP102 and the TXS identification information in the third identification information identifying that the Sharing AP102 shares the transmission opportunity with the first AP do not match;

or

Instructing the third AP104 not to update the NAV of the third AP104 when the TXS identification information in the second identification information identifying the Shared AP101 returning the transmission time to the Sharing AP102 matches the TXS identification information in the third identification information identifying the Sharing AP102 sharing the transmission opportunity with the first AP.

Optionally, if the TXS identification information in the second identification information indicating that the Shared AP 101 returns the transmission time to the Sharing AP 102 and the TXS identification information in the third identification information indicating that the Sharing AP 102 shares the transmission opportunity with the first AP are not If they match, it means that Shared AP101 returns the remaining transmission time to Sharing AP102, which may not be the time in the transmission opportunity shared by Sharing AP102 to Shared AP101; if the TXS identification information in the second identification information that identifies the Shared AP101 returning the transmission time to the Sharing AP102 and the TXS identification information in the third identification information that identifies the Sharing AP102 sharing the transmission opportunity with the first AP match, it means that Shared AP101 returns the remaining transmission time to Sharing AP102, which is the time in the transmission opportunity shared by Sharing AP102 to Shared AP101.

In the disclosed embodiment, if the third AP104 determines that the time returned by Shared AP101 may not be the time in the transmission opportunity shared by Sharing AP102 to Shared AP101, the first wireless frame can instruct the third AP104 to update the NAV of the third AP104 to zero, that is, the third AP104 can restart the competition for the channel without continuously pausing or postponing the data transmission process within BSS3, thereby avoiding wasting communication resources.

If the third AP104 determines that the remaining transmission time returned by Shared AP101 to Sharing AP102 is the time in the transmission opportunity shared by Sharing AP102 to Shared AP101, the first wireless frame can instruct the third AP104 not to update the NAV of the third AP104 and to maintain the NAV of the third AP104, that is, the third AP104 cannot restart the competition for the channel and needs to continuously suspend or postpone the data transmission process within BSS3 to avoid interfering with the data transmission process within BSS1.

Step 206, Shared AP101 sends the first wireless frame to the neighbor AP of Shared AP101.

Step 207, Sharing AP102 re-holds the transmission time returned by Shared AP101.

Optionally, Sharing AP102 can continue the channel competition or data transmission process of Sharing AP102 within the BSS where it is located during the transmission time returned by the re-held Shared AP101.

Step 208, the second AP103 updates the network configuration vector NAV of the second AP103 to zero within the transmission time returned by Sharing AP102 after it re-holds Shared AP101.

Step 209: The third AP104 determines whether to update the NAV of the third AP104 according to the first wireless frame within the transmission time returned by Sharing AP102 after re-holding Shared AP101.

Optionally, when the TXS identification information in the second identification information indicating that the Shared AP 101 returns the transmission time to the Sharing AP 102 does not match the TXS identification information in the third identification information indicating that the Sharing AP 102 shares the transmission opportunity with the first AP, the third AP 104 updates the NAV of the third AP 104 to zero;

When the TXS identification information of the third AP104 in the second identification information indicating that the Shared AP101 returns the transmission time to the Sharing AP102 matches the TXS identification information in the third identification information indicating that the Sharing AP102 shares the transmission opportunity with the first AP, the NAV of the third AP104 is not updated, that is, the current NAV is maintained.

The optional implementations of step 207, step 208 and step 209 can refer to the optional implementation of step 205 in FIG. 2, which will not be described in detail here.

In the above embodiment, during the transmission time returned by Shared AP101 when Sharing AP102 regains possession of the second AP103, the second AP103 updates the NAV of the second AP103 to zero, that is, the second AP103 can restart competing for the channel without having to continuously suspend or postpone the data transmission process in BSS4, thereby avoiding waste of communication resources; the third AP104 determines whether to update the NAV of the third AP104 according to whether Shared AP101 returns the remaining transmission time to Sharing AP102, thereby avoiding the third AP104 from interfering with the data transmission process of Sharing AP102 in BSS1 when Shared AP101 returns the remaining transmission time to Sharing AP102.

In the above embodiment, the shared access point device Shared AP101 carries the first identification information and the second identification information in the first wireless frame, and the frame type of the first wireless frame is identified as a transmission opportunity return frame by the first identification information; the TXS identifier of the transmission time returned by the Shared AP101 to the sharing access point device Sharing AP102 is identified by the second identification information; wherein the transmission time returned by the Shared AP101 is the time in the transmission opportunity shared by the Sharing AP102 to the Shared AP101; and the first wireless frame is sent; in this way, the Sharing AP that receives the first wireless frame can return the transmission time to the sharing access point device Sharing AP102 according to the second identification information. The entry point device Sharing AP102 determines the TXS identifier of the transmission time returned by Sharing AP102, and determines whether the TXS identifier is consistent with the TXS identifier of the transmission opportunity shared by Sharing AP102 to Shared AP101. If the two are consistent, it re-holds the transmission time returned by Shared AP101 and performs data transmission within the re-held transmission time. At the same time, if the other device receiving the first wireless frame is a neighboring AP of Sharing AP102, it can suspend or postpone the data transmission process within its BSS during the transmission time returned by Shared AP101 to Sharing AP102, so as to avoid interfering with the data transmission process performed by Sharing AP102 during the re-held transmission time.

Referring to FIG. 3 , the Sharing AP is AP5, the Shared AP is AP6, the second AP (i.e., the common neighbor AP of the Sharing AP and the Shared AP) is AP7, and the third AP (i.e., the neighbor AP of the Shared AP but not the neighbor AP of the Sharing AP) is AP7. The above data interaction process is described by taking the example that the neighbor AP) is AP8, and the BSS where AP5 is located is BSS5, the BSS where AP6 is located is BSS6, the BSS where AP7 is located is BSS7, and the BSS where AP8 is located is BSS8. In FIG3 , all APs in the dotted box are neighbor APs, for example, AP5, AP6 and AP7 are neighbor APs, and AP6 and AP8 are neighbor APs.

Step 1: In the TXOP held by AP5 (hereinafter "TXOP held by AP5" is referred to as "first TXOP"), AP5 determines the second wireless frame during data transmission in BSS5, and sends the second wireless frame to AP5's neighboring APs (i.e., AP6 and AP7); the first identification field carried by the second wireless frame identifies the TXS identification information of the TXOP shared by AP5 and AP6 (hereinafter "TXOP shared by AP5 to AP6" is referred to as "second TXOP"), wherein the transmission time in the first TXOP except the second TXOP is the fourth TXOP.

At the same time, AP5 suspends or postpones the data transmission process in BSS5 where AP5 is located.

Step 2: After receiving the second wireless frame, AP6 determines that the identification information of AP6 is the same as the identification information of the AP indicated by AP Identifier in the second wireless frame, determines that AP6 is the target Shared AP, and sends a CTS frame to AP6's neighbor APs (i.e., AP5, AP7, and AP8).

After receiving the second wireless frame, AP7 determines that the identification information of AP7 is different from the identification information of the AP indicated by the AP Identifier in the second wireless frame, determines that AP7 is a non-target Shared AP, and sets the NAV of AP7 to the time length indicated by the second TXOP.

Step 3: After sending the CTS frame, AP6 performs data transmission within BSS6.

After receiving the CTS frame, AP5 determines that its NAV value is equal to the length of time indicated by the Duration field in the CTS frame and does not update AP5's NAV.

After receiving the CTS frame, AP7 determines that its NAV value is equal to the time length indicated by the Duration field in the CTS frame and does not update AP7's NAV.

After receiving the CTS frame, AP8 determines that its NAV value is less than the time length indicated by the Duration field in the CTS, and updates the NAV value of AP8 to the time length indicated by the second TXOP.

Among them, AP8 is not a neighbor AP of AP5, and AP8 cannot receive the second wireless frame. Before AP8 receives the CTS frame, AP8 can perform channel competition or perform data transmission in BSS8.

Step 4: After AP6 completes the data transmission process in BSS6 in advance within the second TXOP, it determines the first wireless frame and sends the first wireless frame to AP6's neighboring APs (AP5, AP7 and AP8); the second identification field carried by the first wireless frame identifies AP6 and returns the TXS identification information of the remaining TXOP in the second TXOP to AP5 (hereinafter "the remaining TXOP in the second TXOP" is referred to as "the third TXOP").

Step 5: After receiving the first wireless frame, AP5 re-holds the third TXOP, wherein the length of the TXOP currently held by AP5 is: the third AP + the fourth AP.

AP7 is a common neighbor AP of AP5 and AP6. After receiving the second wireless frame, AP7 will receive the first wireless frame again. When AP7 determines that the second identification field carried by the first wireless frame (that is, AP5 shares the TXS identification information of the TXOP with AP6) and the first identification field carried by the first wireless frame (that is, AP6 returns the TXS identification information of the remaining TXOP in the second TXOP to AP5) are the same, AP7 maintains its current NAV.

After receiving the first wireless frame, since AP8 is not a neighbor AP of AP5, it will not interfere with the data transmission process of AP5 in BSS5. AP8's NAV can be updated to zero (as shown by "×" in Figure 3, AP8 no longer maintains its NAV) and re-compete for the channel.

In some embodiments, the names of information, etc. are not limited to the names recorded in the embodiments, and terms such as "information", "message", "signal", "signaling", "report", "configuration", "indication", "instruction", "command", "channel", "parameter", "domain", "field", "symbol", "bit", "data", "program", and "chip" can be used interchangeably.

In some embodiments, terms such as "moment", "time point", "time", and "time position" can be interchangeable, and terms such as "duration", "period", "time window", "window", and "time" can be interchangeable.

In some embodiments, terms such as wireless access scheme and waveform may be used interchangeably.

In some embodiments, terms such as "certain", "preset", "preset", "set", "indicated", "some", "any", and "first" can be interchangeable, and "specific A", "preset A", "preset A", "set A", "indicated A", "some A", "any A", and "first A" can be interpreted as A pre-defined in a protocol, etc., or as A obtained through setting, configuration, or indication, etc., and can also be interpreted as specific A, some A, any A, or first A, etc., but is not limited to this.

In some embodiments, the determination or judgment may be performed by a value represented by 1 bit (0 or 1), by a true or false value (Boolean value) represented by true (true) or false (false), or by comparing a numerical value (e.g., with a predetermined value). The method may be performed by comparing the fixed values, but is not limited to this.

In some embodiments, "not expecting to receive" can be interpreted as not receiving on time domain resources and/or frequency domain resources, or as not performing subsequent processing on the data after receiving the data; "not expecting to send" can be interpreted as not sending, or as sending but not expecting the recipient to respond to the sent content.

The communication method involved in the embodiments of the present disclosure may include at least one of the aforementioned steps and embodiments. For example, step 201 can be implemented as an independent embodiment, step 202 can be implemented as an independent embodiment, step 203 can be implemented as an independent embodiment, step 204 can be implemented as an independent embodiment, step 205 can be implemented as an independent embodiment, step 207 can be implemented as an independent embodiment, step 208 can be implemented as an independent embodiment, and step 209 can be implemented as an independent embodiment; the combination of step 201 and step 202 can be implemented as an independent embodiment, the combination of step 201, step 202 and step 203 can be implemented as an independent embodiment, the combination of step 201, step 202, step 203 and step 204 can be implemented as an independent embodiment, the combination of step 205 and step 206 can be implemented as an independent embodiment, and step 201, step 202, step 203, step 204, step 205 can be implemented as an independent embodiment. The combination of step 201, step 202, step 203, step 204, step 205, step 206 and step 207 can be implemented as an independent embodiment, the combination of step 205, step 206 and step 208 can be implemented as an independent embodiment, the combination of step 205, step 206 and step 209 can be implemented as an independent embodiment, the combination of step 201, step 202, step 203, step 204, step 205, step 206 and step 207 can be implemented as an independent embodiment, the combination of step 201, step 202, step 203, step 204, step 205, step 206 and step 208 can be implemented as an independent embodiment, the combination of step 201, step 202, step 203, step 204, step 205, step 206 and step 209 can be implemented as an independent embodiment, but is not limited thereto.

In some embodiments, reference may be made to other optional implementations recorded before or after the description corresponding to FIG. 2 .

FIG. 4 is one of the flowchart diagrams of the communication method according to an embodiment of the present disclosure.

As shown in FIG. 4 , the above method may be applied to a shared access point device 101, and the above method includes:

Step 401, determine the first wireless frame; wherein the first wireless frame includes first identification information and second identification information, the first identification information is used to identify that the frame type of the first wireless frame is a transmission opportunity return frame; the second identification information is used to identify the TXS identification information of the Shared AP returning the transmission time to the sharing access point device Sharing AP; wherein the transmission time returned by the Shared AP is the time in the transmission opportunity shared by the Sharing AP to the Shared AP.

Optionally, in an embodiment of the present disclosure, the first identification information is carried in a Common Info field of the first radio frame; wherein the first identification information is set to a first parameter value, and the first identification information is used to identify that the frame type of the first radio frame is a transmission opportunity return frame;

The second identification information is carried in the user information field User Info field of the first wireless frame.

Optionally, in the embodiment of the present disclosure, before determining the first radio frame, the method further includes:

Receive a second wireless frame; wherein the second wireless frame includes third identification information, and the third identification information is used to identify TXS identification information of the Sharing AP sharing a transmission opportunity with the first AP; the first AP is a neighbor AP of the Sharing AP;

In response to the Shared AP determining that the identification information of the first AP matches the identification information of the Shared AP, a Clear to Send frame CTS frame is sent.

Optionally, in the embodiment of the present disclosure, the first radio frame is used to indicate at least one of the following operations:

Instruct the Sharing AP to re-hold the transmission time returned by the Shared AP;

Instructing the second AP to update the network configuration vector NAV of the second AP to zero; wherein the second AP is a neighbor AP of the Shared AP, and the second AP is not a neighbor AP of the Sharing AP;

Instruct a third AP to determine whether to update the NAV of the third AP based on the first wireless frame; wherein the third AP is a common neighbor AP of the Sharing AP and the Shared AP.

Optionally, in the embodiment of the present disclosure, the instructing the third AP to determine whether to update the NAV of the third AP according to the first radio frame includes:

Instructing the third AP to update the NAV of the third AP to zero; wherein the TXS identification information in the second identification information indicating that the Shared AP returns the transmission time to the Sharing AP and the TXS identification information in the third identification information indicating that the Sharing AP shares the transmission opportunity with the first AP do not match;

or

Instructing the third AP not to update the NAV of the third AP; wherein the TXS identification information in the second identification information that identifies the Shared AP returning the transmission time to the Sharing AP and the third identification information that identifies the Sharing AP returning the transmission time to the Sharing AP The TXS identification information of the first AP sharing the transmission opportunity matches.

Optionally, in the embodiment of the present disclosure, the CTS frame includes a duration field Duration field.

The Duration field indicates that the fourth AP does not update the NAV of the fourth AP when determining that the NAV of the fourth AP is greater than or equal to the value indicated by the Duration field; the fourth AP is a neighbor AP of the Shared AP;

or

The Duration field indicates that the fourth AP updates the NAV of the fourth AP when determining that the NAV of the fourth AP is less than the value indicated by the Duration field.

Optionally, in an embodiment of the present disclosure, the third identification information is carried in the User Info field of the second wireless frame.

Optionally, in the embodiment of the present disclosure, after sending a confirmation sending frame CTS frame, the method further includes:

During the transmission time indicated by the transmission opportunity shared by the Sharing AP to the Shared AP, the Shared AP transmits data within the basic service set BSS where the Shared AP is located.

The optional implementation of step 401 can refer to the optional implementation of step 201, step 202, step 203, step 204, step 205 in Figure 2, and other related parts in the embodiment involved in Figure 2, which will not be repeated here.

Step 402: Send the first wireless frame.

The optional implementation of step 402 can refer to the optional implementation of step 206 in FIG. 2 and other related parts in the embodiment involved in FIG. 2 , which will not be described in detail here.

The communication method involved in the embodiments of the present disclosure may include at least one of the aforementioned steps and embodiments. For example, step 401 may be implemented as an independent embodiment; the combination of step 401 and step 402 may be implemented as an independent embodiment, but is not limited thereto.

In some embodiments, reference may be made to other optional implementations recorded before or after the description corresponding to FIG. 3 .

FIG. 5 is a second flowchart of a communication method according to an embodiment of the present disclosure.

As shown in FIG. 5 , the above method can be applied to a shared access point device 102. The above method includes: ...

Step 501, receiving a first radio frame;

The first wireless frame includes first identification information and second identification information, the first identification information is used to identify that the frame type of the first wireless frame is a transmission opportunity return frame; the second identification information is used to identify the TXS identification information of the Shared AP returning the transmission time to the sharing access point device Sharing AP; wherein, the transmission time returned by the Shared AP is the time in the transmission opportunity shared by the Sharing AP to the Shared AP.

Optionally, in an embodiment of the present disclosure, the first identification information is carried in a Common Info field of the first radio frame; wherein the first identification information is set to a first parameter value, and the first identification information is used to identify that the frame type of the first radio frame is a transmission opportunity return frame;

The second identification information is carried in the user information field User Info field of the first wireless frame.

Optionally, in the embodiment of the present disclosure, before receiving the first radio frame, the method further includes:

Determine a second wireless frame; wherein the second wireless frame identifies that the Sharing AP shares a transmission opportunity with the first AP; the second wireless frame includes third identification information, and the third identification information is used to identify TXS identification information that the Sharing AP shares a transmission opportunity with the first AP; the first AP is a neighbor AP of the Sharing AP;

The second radio frame is sent.

Optionally, in the embodiment of the present disclosure, the second radio frame is used to indicate at least one of the following operations:

Instructing the first AP to perform data transmission within the BSS where the first AP is located within the transmission time indicated by the transmission opportunity shared by the Sharing AP to the first AP;

Instruct the fifth AP to update the NAV of the fifth AP to the value indicated by the duration field in the second wireless frame; the fifth AP is an AP among the neighbor APs of the Sharing AP that is not the first AP.

Optionally, in an embodiment of the present disclosure, the third identification information is carried in the User Info field of the second wireless frame.

Optionally, in the embodiment of the present disclosure, after receiving the first radio frame, the method further includes:

Re-hold the transmission time returned by the Shared AP.

The optional implementation of step 501 can refer to the optional implementation of step 201, step 202, step 203, step 204, step 205, step 206 and step 207 in Figure 2, and other related parts in the embodiment involved in Figure 2, which will not be repeated here.

In some embodiments, reference may be made to other optional implementations recorded before or after the description corresponding to FIG. 5 .

The embodiments of the present disclosure also propose a device for implementing any of the above methods, for example, a device is proposed, the above device includes a unit or module for implementing each step performed by the terminal in any of the above methods. For another example, another device is also proposed, including a unit or module for implementing each step performed by a network device (such as an access network device, a core network function node, a core network device, etc.) in any of the above methods.

It should be understood that the division of the units or modules in the above device is only a division of logical functions, which can be fully or partially integrated into one physical entity or physically separated in actual implementation. In addition, the units or modules in the device can be implemented in the form of a processor calling software: for example, the device includes a processor, the processor is connected to a memory, and instructions are stored in the memory. The processor calls the instructions stored in the memory to implement any of the above methods or implement the functions of the units or modules of the above device, wherein the processor is, for example, a general-purpose processor, such as a central processing unit (CPU) or a microprocessor, and the memory is a memory inside the device or a memory outside the device. Alternatively, the units or modules in the device may be implemented in the form of hardware circuits, and the functions of some or all of the units or modules may be implemented by designing the hardware circuits. The hardware circuits may be understood as one or more processors; for example, in one implementation, the hardware circuits are application-specific integrated circuits (ASICs), and the functions of some or all of the above units or modules may be implemented by designing the logical relationship of the components in the circuits; for another example, in another implementation, the hardware circuits may be implemented by programmable logic devices (PLDs), and Field Programmable Gate Arrays (FPGAs) may be used as an example, which may include a large number of logic gate circuits, and the connection relationship between the logic gate circuits may be configured by configuring the configuration files, thereby implementing the functions of some or all of the above units or modules. All units or modules of the above devices may be implemented in the form of software called by the processor, or in the form of hardware circuits, or in the form of software called by the processor, and the remaining part may be implemented in the form of hardware circuits.

In the disclosed embodiments, the processor is a circuit with signal processing capability. In one implementation, the processor may be a circuit with instruction reading and execution capability, such as a central processing unit (CPU), a microprocessor, a graphics processing unit (GPU) (which may be understood as a microprocessor), or a digital signal processor (DSP); in another implementation, the processor may implement certain functions through the logical relationship of a hardware circuit, and the logical relationship of the above hardware circuit may be fixed or reconfigurable, such as a hardware circuit implemented by an application-specific integrated circuit (ASIC) or a programmable logic device (PLD), such as an FPGA. In a reconfigurable hardware circuit, the process of the processor loading a configuration document to implement the hardware circuit configuration may be understood as the process of the processor loading instructions to implement the functions of some or all of the above units or modules. In addition, it can also be a hardware circuit designed for artificial intelligence, which can be understood as ASIC, such as Neural Network Processing Unit (NPU), Tensor Processing Unit (TPU), Deep Learning Processing Unit (DPU), etc.

Fig. 6 is one of the structural diagrams of the access point device proposed in the embodiment of the present disclosure. As shown in Fig. 6, the access point device is a shared access point device, and the shared access point device 600 may include: at least one of a determination module 601, a sending module 602, and the like.

In some embodiments, the above-mentioned determination module 601 is used to determine a first wireless frame; wherein the first wireless frame includes first identification information and second identification information, the first identification information is used to identify that the frame type of the first wireless frame is a transmission opportunity return frame; the second identification information is used to identify the TXS identification information of the Shared AP returning the transmission time to the sharing access point device Sharing AP; wherein the transmission time returned by the Shared AP is the time in the transmission opportunity shared by the Sharing AP to the Shared AP; the sending module 602 is used to send the first wireless frame.

Optionally, the determination module 601 is used to execute at least one of the communication steps (such as step 205, step 202, step 205, step 401, but not limited thereto) executed by the shared access point device 101 in any of the above methods, which will not be described in detail here. The sending module 602 is used to execute at least one of the sending and receiving steps (such as step 203, step 204, step 206, step 402, but not limited thereto) executed by the shared access point device 101 in any of the above methods, which will not be described in detail here.

FIG7 is a second schematic diagram of the structure of an access point device proposed in an embodiment of the present disclosure. As shown in FIG7 , the access point device is a shared access point device, and the shared access point device 700 may include: a receiving module 701 .

In some embodiments, the receiving module 701 is configured to receive a first radio frame;

The first wireless frame includes first identification information and second identification information, wherein the first identification information is used to identify the The frame type of the first wireless frame is a transmission opportunity return frame; the second identification information is used to identify the TXS identification information of the Shared AP returning the transmission time to the sharing access point device Sharing AP; wherein the transmission time returned by the Shared AP is the time in the transmission opportunity shared by the Sharing AP to the Shared AP.

Optionally, the receiving module 701 is used to execute at least one of the sending and receiving steps (such as step 202 and step 501, but not limited thereto) executed by the shared access point device 102 in any of the above methods, which will not be described in detail here.

The shared access point device 700 may include: a second determination module, which is used to execute at least one of the communication steps (such as step 201 and step 207, but not limited thereto) executed by the shared access point device 102 in any of the above methods, which will not be described in detail here.

FIG8 is a schematic diagram of the structure of a terminal 800 (e.g., user equipment, etc.) proposed in an embodiment of the present disclosure. The terminal 800 may be a chip, a chip system, or a processor, etc. that supports a network device to implement any of the above methods, or may be a chip, a chip system, or a processor, etc. that supports a terminal to implement any of the above methods. The terminal 800 may be used to implement the method described in the above method embodiment, and the details may refer to the description in the above method embodiment.

As shown in FIG8 , the terminal 800 includes one or more processors 801. The processor 801 may be a general-purpose processor or a dedicated processor, for example, a baseband processor or a central processing unit. The baseband processor may be used to process the communication protocol and the communication data, and the central processing unit may be used to control the communication device (such as a base station, a baseband chip, a terminal device, a terminal device chip, a DU or a CU, etc.), execute a program, and process the data of the program. The terminal 800 is used to execute any of the above methods.

In some embodiments, the terminal 800 further includes one or more memories 802 for storing instructions. Optionally, all or part of the memory 802 may also be outside the terminal 800.

In some embodiments, the terminal 800 further includes one or more transceivers 804. When the terminal 800 includes one or more transceivers 804, the transceiver 804 performs at least one of the communication steps such as sending and/or receiving in the above method (for example, step 202, step 203, step 204, step 206, step 402, step 501, but not limited thereto), and the processor 801 performs at least one of the other steps (for example, step 201, step 205, step 202, step 205, step 207, step 401, but not limited thereto).

In some embodiments, the transceiver may include a receiver and/or a transmitter, and the receiver and the transmitter may be separate or integrated. Optionally, the terms such as transceiver, transceiver unit, transceiver, transceiver circuit, etc. may be replaced with each other, the terms such as transmitter, transmission unit, transmitter, transmission circuit, etc. may be replaced with each other, and the terms such as receiver, receiving unit, receiver, receiving circuit, etc. may be replaced with each other.

In some embodiments, the terminal 800 may include one or more interface circuits 803. Optionally, the interface circuit 803 is connected to the memory 802, and the interface circuit 803 may be used to receive signals from the memory 802 or other devices, and may be used to send signals to the memory 802 or other devices. For example, the interface circuit 803 may read instructions stored in the memory 802 and send the instructions to the processor 801.

The terminal 800 described in the above embodiment may be a communication device such as a user device, but the scope of the terminal 800 described in the present disclosure is not limited thereto, and the structure of the terminal 800 may not be limited by FIG. 8. The communication device may be an independent device or may be part of a larger device. For example, the communication device may be: (1) an independent integrated circuit IC, or a chip, or a chip system or subsystem; (2) a collection of one or more ICs, optionally, the above IC collection may also include a storage component for storing data and programs; (3) an ASIC, such as a modem; (4) a module that can be embedded in other devices; (5) a receiver, a terminal device, an intelligent terminal device, a cellular phone, a wireless device, a handheld device, a mobile unit, a vehicle-mounted device, a network device, a cloud device, an artificial intelligence device, etc.; (6) others, etc.

Fig. 9 is a schematic diagram of the structure of a chip 900 provided in an embodiment of the present disclosure. In the case where the terminal 1300 may be a chip or a chip system, reference may be made to the schematic diagram of the structure of the chip 900 shown in Fig. 9, but the present disclosure is not limited thereto.

The chip 900 includes one or more processors 901 , and the chip 900 is used to execute any of the above methods.

In some embodiments, the chip 900 further includes one or more 903. Optionally, the interface circuit 903 is connected to the memory 902, and the interface circuit 903 can be used to receive signals from the memory 902 or other devices, and the interface circuit 903 can be used to send signals to the memory 902 or other devices. For example, the interface circuit 903 can read the instructions stored in the memory 902 and send the instructions to the processor 901.

In some embodiments, the interface circuit 903 executes at least one of the communication steps such as sending and/or receiving in the above method (for example, step 202, step 203, step 204, step 206, step 402, step 501, but not limited to this), and the processor 901 executes at least one of the other steps (for example, step 201, step 205, step 202, step 205, step 207, step 401, but not limited to this).

In some embodiments, terms such as interface circuit, interface, transceiver pin, and transceiver may be used interchangeably.

In some embodiments, the chip 900 further includes one or more memories 902 for storing instructions. Alternatively, all or part of the memory 902 may be outside the chip 900.

The present disclosure also provides a storage medium, on which instructions are stored. When the instructions are executed on the terminal 800, The terminal 800 executes any of the above methods. Optionally, the storage medium is an electronic storage medium. Optionally, the storage medium is a computer-readable storage medium, but is not limited thereto, and may also be a storage medium readable by other devices. Optionally, the storage medium may be a non-transitory storage medium, but is not limited thereto, and may also be a temporary storage medium.

The present disclosure also proposes a program product, and when the program product is executed by the terminal 800, the terminal 800 executes any of the above methods. Optionally, the program product is a computer program product.

The present disclosure also proposes a computer program, which, when executed on a computer, causes the computer to execute any one of the above methods.

Claims (20)

A communication method, characterized in that it is performed by a shared access point device Shared AP, and the method comprises: Determine a first wireless frame; wherein the first wireless frame includes first identification information and second identification information, the first identification information is used to identify that the frame type of the first wireless frame is a transmission opportunity return frame; the second identification information is used to identify the transmission opportunity sharing TXS identification information of the Shared AP returning the transmission time to the sharing access point device Sharing AP; wherein the transmission time returned by the Shared AP is the time in the transmission opportunity shared by the Sharing AP to the Shared AP; The first radio frame is sent. The communication method according to claim 1, characterized in that: The first identification information is carried in the Common Info field of the first radio frame; wherein the first identification information is set to a first parameter value, and the first identification information is used to identify that the frame type of the first radio frame is a transmission opportunity return frame; The second identification information is carried in the user information field User Info field of the first wireless frame. The communication method according to claim 1 or 2, characterized in that before determining the first wireless frame, the method further comprises: Receive a second wireless frame; wherein the second wireless frame includes third identification information, and the third identification information is used to identify TXS identification information of the Sharing AP sharing a transmission opportunity with the first AP; the first AP is a neighbor AP of the Sharing AP; In response to the identification information of the first AP matching the identification information of the Shared AP, a CTS frame is sent. The communication method according to claim 3, wherein the first wireless frame is used to indicate at least one of the following operations: Instruct the Sharing AP to re-hold the transmission time returned by the Shared AP; Instructing the second AP to update the network configuration vector NAV of the second AP to zero; wherein the second AP is a neighbor AP of the Shared AP, and the second AP is not a neighbor AP of the Sharing AP; Instruct a third AP to determine whether to update the NAV of the third AP based on the first wireless frame; wherein the third AP is a common neighbor AP of the Sharing AP and the Shared AP. The communication method according to claim 4, wherein the instructing the third AP to determine whether to update the NAV of the third AP according to the first wireless frame comprises: Instructing the third AP to update the NAV of the third AP to zero; wherein the TXS identification information in the second identification information indicating that the Shared AP returns the transmission time to the Sharing AP and the TXS identification information in the third identification information indicating that the Sharing AP shares the transmission opportunity with the first AP do not match; or Instruct the third AP not to update the NAV of the third AP; wherein the TXS identification information in the second identification information identifying the Shared AP returning the transmission time to the Sharing AP and the TXS identification information in the third identification information identifying the Sharing AP sharing the transmission opportunity with the first AP match. The communication method according to claim 3, characterized in that the CTS frame includes a duration field, The duration field indicates that the fourth AP does not update the NAV of the fourth AP when determining that the NAV of the fourth AP is greater than or equal to the value indicated by the duration field; the fourth AP is a neighbor AP of the Shared AP; or The duration field indicates that the fourth AP updates the NAV of the fourth AP when determining that the NAV of the fourth AP is less than the value indicated by the duration field. The communication method according to claim 3 is characterized in that the third identification information is carried in the User Info field of the second wireless frame. The communication method according to claim 3, characterized in that after sending a confirmation sending frame CTS frame, the method further comprises: Within the transmission time indicated by the transmission opportunity shared by the Sharing AP to the Shared AP, the Shared AP performs data transmission in the basic service set BSS where the Shared AP is located. A communication method, characterized in that it is performed by a sharing access point device Sharing AP, and the method comprises: receiving a first wireless frame; The first wireless frame includes first identification information and second identification information, the first identification information is used to identify that the frame type of the first wireless frame is a transmission opportunity return frame; the second identification information is used to identify the TXS identification information of the Shared AP returning the transmission time to the sharing access point device Sharing AP; wherein, the transmission time returned by the Shared AP is the time in the transmission opportunity shared by the Sharing AP to the Shared AP. The communication method according to claim 9, characterized in that: The first identification information is carried in the Common Info field of the first radio frame; wherein the first identification information is set to a first parameter value, and the first identification information is used to identify that the frame type of the first radio frame is a transmission opportunity return frame; The second identification information is carried in the user information field User Info field of the first wireless frame. The communication method according to claim 9 or 10, characterized in that before receiving the first wireless frame, the method further comprises: Determine a second wireless frame; wherein the second wireless frame identifies that the Sharing AP shares a transmission opportunity with the first AP; the second wireless frame includes third identification information, and the third identification information is used to identify TXS identification information that the Sharing AP shares a transmission opportunity with the first AP; the first AP is a neighbor AP of the Sharing AP; The second radio frame is sent. The communication method according to claim 11, wherein the first wireless frame is used to indicate at least one of the following operations: Instruct the Sharing AP to re-hold the transmission time returned by the Shared AP; Instructing the second AP to update the network configuration vector NAV of the second AP to zero; wherein the second AP is a neighbor AP of the Shared AP, and the second AP is not a neighbor AP of the Sharing AP; Instruct a third AP to determine whether to update the NAV of the third AP based on the first wireless frame; wherein the third AP is a common neighbor AP of the Sharing AP and the Shared AP. The communication method according to claim 12, characterized in that after receiving the first wireless frame, the method further comprises: Re-hold the transmission time returned by the Shared AP. The communication method according to claim 11, wherein the second wireless frame is used to indicate at least one of the following operations: Instructing the first AP to perform data transmission within the BSS where the first AP is located within the transmission time indicated by the transmission opportunity shared by the Sharing AP to the first AP; Instruct the fifth AP to update the NAV of the fifth AP to the value indicated by the duration field in the second wireless frame; the fifth AP is an AP among the neighbor APs of the Sharing AP that is not the first AP. The communication method according to claim 11 is characterized in that the third identification information is carried in the User Info field of the second wireless frame. An access point device, characterized in that the access point device is a shared access point device Shared AP, comprising: A determination module, used for determining a first wireless frame; wherein the first wireless frame includes first identification information and second identification information, the first identification information is used for identifying that the frame type of the first wireless frame is a transmission opportunity return frame; the second identification information is used for identifying the TXS identification information of the Shared AP returning the transmission time to the sharing access point device Sharing AP; wherein the transmission time returned by the Shared AP is the time in the transmission opportunity shared by the Sharing AP to the Shared AP; A sending module is used to send the first wireless frame. An access point device, characterized in that the access point device is a sharing access point device Sharing AP, comprising: A receiving module, configured to receive a first wireless frame; The first wireless frame includes first identification information and second identification information, wherein the first identification information is used to identify that the frame type of the first wireless frame is a transmission opportunity return frame; the second identification information is used to identify the TXS identification information of the Shared AP returning the transmission time to the Sharing AP; wherein the transmission time returned by the Shared AP is the Sharing AP. The time in the transmission opportunity that the AP shares with the Shared AP. An access point device, comprising: one or more processors; The access point device is used to execute the communication method according to any one of claims 1 to 8 or 9 to 15. A communication system, characterized by comprising a first access point device and a second access point device; wherein the first access point device is configured to implement the communication method described in any one of claims 1 to 8, and the second access point device is configured to implement the communication method described in any one of claims 9 to 15. A storage medium storing instructions, characterized in that when the instructions are executed on a communication device, the communication device executes the communication method as described in any one of claims 1 to 8 or 9 to 15.