Transmission method and device, equipment, storage medium and program product

Abstract

The invention discloses a transmission method and device, equipment, a storage medium and a program product, and belongs to the technical field of wireless communication. The method comprises: a first STA device in a first BSS monitoring or receiving a data unit in a first BSS channel to obtain first monitoring or receiving situation information (201); the first monitoring or receiving condition information is used for indicating transmission information, monitored or received by the first STA equipment, of a first target station in a second BSS; the first target station is a station in which the initiated transmission affects or interferes frame exchange of the first STA device in the first BSS; and reporting the first monitoring or receiving condition information to a first AP device in the first BSS (202).

Description

Method, device, equipment, storage medium and program product for transmission Technical Field

[0001] The present application relates to the field of wireless communication technology, and in particular to a method, apparatus, device, storage medium, and program product for transmission. Background Art

[0002] In a wireless local area network (WLAN), a target wake time (TWT) mechanism is used to support energy saving in a large-scale Internet of Things (IoT) environment.

[0003] IEEE 802.11be proposes Restricted TWT operation to allow access points (APs) to utilize enhanced medium access protection and resource reservation mechanisms to provide more predictable, lower worst-case delay and jitter, and higher reliability for the transmission of low-latency services.

[0004] However, there are usually overlapping basic service sets (OBSS) in Wi-Fi networks. The OBSS will interfere with the restricted TWT operation in the BSS, thereby affecting the transmission delay under the restricted TWT operation.

[0005] Summary of the Invention

[0006] The embodiments of the present application provide a method, apparatus, device, storage medium, and program product for transmission. The technical solution is as follows:

[0007] On the one hand, an embodiment of the present application provides a method for transmission, the method being performed by a first station (STA) device in a first basic service set (BSS), where the first STA device is a non-access point (non-AP) STA; the method comprising:

[0008] Monitoring or receiving a data unit in a first BSS channel to obtain first monitoring or reception information; the first monitoring or reception information is used to indicate transmission information of a first target station in a second BSS monitored or received by the first STA device; the first target station is a station whose transmission affects or interferes with frame exchange of the first STA device in the first BSS;

[0009] Report the first monitoring or receiving situation information to a first AP device in the first BSS.

[0010] In one aspect, an embodiment of the present application provides a method for transmission, the method being performed by a first AP device in a first BSS; the method comprising:

[0011] Obtaining monitoring or reception information; the monitoring or reception information is used to indicate transmission information of a target station in the second BSS monitored or received by a station in the first BSS in a first BSS channel; the target station is a station whose initiated transmission affects or interferes with frame exchange of the station in the first BSS in the first BSS;

[0012] Based on the monitoring or receiving situation information, the target resource information and / or target site information is shared with the second AP device in the second BSS; the target resource information and / or target site information is used by the second AP device to constrain the transmission of the site in the second BSS on the target channel and / or target time; the target channel and / or target time are the channels and / or times that require media access protection in the first BSS.

[0013] In one aspect, an embodiment of the present application provides a method for transmission, the method being performed by a second AP device in a second BSS, the method including:

[0014] receiving target resource information and / or target site information shared by a first AP device in a first BSS; the target resource information and / or target site information is shared by the first AP device based on monitoring or reception information; the monitoring or reception information is used to indicate transmission information of a target site in the second BSS monitored or received by a site in the first BSS; the target site is a site whose transmission initiates an impact on or interferes with frame exchange of a site in the first BSS;

[0015] Based on the information of the target resource and / or the information of the target site, the transmission of the sites in the second BSS on the target channel and / or target time is constrained; the target channel and / or target time are the channels and / or times that require media access protection in the first BSS.

[0016] In one aspect, an embodiment of the present application provides a method for transmission, the method being performed by a third STA device in a second BSS; the third STA device being a non-AP STA; the method comprising:

[0017] Receive a channel resource protection enable notification frame sent by a second AP device in the second BSS; the channel resource protection enable notification frame is sent by the second AP device after receiving target resource information and / or target site information sent by the first AP device in the first BSS; the target resource information and / or target site information is shared by the first AP device based on monitoring or reception situation information; the monitoring or reception situation information is used to indicate transmission information of a target site in the second BSS monitored or received by a site in the first BSS; the target site is a site whose initiated transmission affects or interferes with frame exchange of a site in the first BSS in the first BSS;

[0018] According to the channel resource protection start notification frame, the transmission of the third STA device on the target channel and / or target time is constrained; the target channel and / or target time is the channel and / or time that requires media access protection in the first BSS.

[0019] On the other hand, an embodiment of the present application provides a device for transmission, the device comprising:

[0020] A monitoring module, configured to monitor or receive a data unit in a first BSS channel to obtain first monitoring or reception information; the first monitoring or reception information is used to indicate transmission information of a first target station in a second BSS monitored or received by the first STA device; the first target station is a station whose initiated transmission affects or interferes with frame exchange of the first STA device in the first BSS;

[0021] A reporting module is configured to report the first monitoring or receiving situation information to the first AP device in the first BSS.

[0022] On the other hand, an embodiment of the present application provides a device for transmission, the device comprising:

[0023] an information acquisition module, configured to acquire monitoring or reception information; the monitoring or reception information indicating transmission information of a target station in a second BSS monitored or received in a first BSS channel by a station in a first BSS; the target station being a station whose transmission initiates an impact on or interferes with frame exchange of a station in the first BSS in the first BSS;

[0024] A sending module is used to share the target resource information and / or target site information with the second AP device in the second BSS based on the monitoring or receiving situation information; the target resource information and / or target site information is used by the second AP device to constrain the transmission of the site in the second BSS on the target channel and / or target time; the target channel and / or target time are the channels and / or times that require media access protection in the first BSS.

[0025] On the other hand, an embodiment of the present application provides a device for transmission, the device comprising:

[0026] a receiving module, configured to receive target resource information and / or target site information shared by a first AP device in a first BSS; the target resource information and / or target site information is shared by the first AP device based on monitoring or reception information; the monitoring or reception information is used to indicate transmission information of a target site in a second BSS monitored or received by a site in the first BSS; the target site is a site whose transmission initiates an impact on or interferes with frame exchange of a site in the first BSS in the first BSS;

[0027] A constraint module is used to constrain the transmission of sites in the second BSS on the target channel and / or target time based on the information of the target resources and / or the information of the target site; the target channel and / or target time are the channels and / or times that require media access protection in the first BSS.

[0028] On the other hand, an embodiment of the present application provides a device for transmission, the device comprising:

[0029] A receiving module, configured to receive a channel resource protection enable notification frame sent by a second AP device in a second BSS; the channel resource protection enable notification frame is sent by the second AP device after receiving target resource information and / or target site information sent by the first AP device in the first BSS; the target resource information and / or target site information is shared by the first AP device based on monitoring or reception situation information; the monitoring or reception situation information is used to indicate transmission information of a target site in the second BSS monitored or received by a site in the first BSS; the target site is a site whose initiated transmission affects or interferes with frame exchange of a site in the first BSS in the first BSS;

[0030] A constraint module is used to constrain the transmission of the third STA device on the target channel and / or target time according to the channel resource protection activation notification frame; the target channel and / or target time are the channels and / or times that require media access protection in the first BSS.

[0031] On the other hand, an embodiment of the present application provides a STA device, wherein the STA device is a first STA device in a first BSS, and the first STA device is a non-AP STA; the STA device includes a processor, a memory, and a transceiver;

[0032] The transceiver is used to monitor or receive data units in the first BSS channel to obtain first monitoring or reception situation information; the first monitoring or reception situation information is used to indicate the transmission information of the first target site in the second BSS monitored or received by the first STA device; the first target site is a site that initiates transmission that affects or interferes with the frame exchange of the first STA device in the first BSS; and reports the first monitoring or reception situation information to the first AP device in the first BSS.

[0033] On the other hand, an embodiment of the present application provides an AP device, wherein the AP device is an AP device in a first BSS; the AP device includes a processor, a memory, and a transceiver;

[0034] The transceiver is used to obtain monitoring or receiving situation information; the monitoring or receiving situation information is used to indicate the transmission information of the target site in the second BSS monitored or received by the station in the first BSS channel; the target site is a site that initiates transmission that affects or interferes with the frame exchange of the station in the first BSS in the first BSS; based on the monitoring or receiving situation information, the target resource information and / or target site information is shared with the second AP device in the second BSS; the target resource information and / or target site information is used by the second AP device to constrain the transmission of the station in the second BSS on the target channel and / or target time; the target channel and / or target time are the channels and / or times in the first BSS that require media access protection.

[0035] On the other hand, an embodiment of the present application provides an AP device, wherein the AP device is an AP device in a second BSS; the AP device includes a processor, a memory, and a transceiver;

[0036] The transceiver is configured to receive target resource information and / or target site information shared by a first AP device in a first BSS; the target resource information and / or target site information is shared by the first AP device based on monitoring or reception information; the monitoring or reception information is used to indicate transmission information of a target site in the second BSS monitored or received by a site in the first BSS; the target site is a site whose transmission initiates an impact on or interferes with frame exchange of a site in the first BSS in the first BSS;

[0037] The processor is used to constrain the transmission of the sites in the second BSS on the target channel and / or target time based on the information of the target resources and / or the information of the target site; the target channel and / or target time are the channels and / or times that require medium access protection in the first BSS.

[0038] On the other hand, an embodiment of the present application provides a STA device, wherein the STA device is a third STA device in a second BSS, and the third STA device is a non-AP STA; the STA device includes a processor, a memory, and a transceiver;

[0039] The transceiver is configured to receive a channel resource protection activation notification frame sent by a second AP device in the second BSS; the channel resource protection activation notification frame is sent by the second AP device after receiving target resource information and / or target site information sent by the first AP device in the first BSS; the target resource information and / or target site information are shared by the first AP device based on monitoring or reception situation information; the monitoring or reception situation information is used to indicate transmission information of a target site in the second BSS monitored or received by a site in the first BSS; the target site is a site whose initiated transmission affects or interferes with frame exchange of a site in the first BSS in the first BSS;

[0040] The processor is used to constrain the transmission of the third STA device on the target channel and / or target time according to the channel resource protection start notification frame; the target channel and / or target time are the channels and / or times that require medium access protection in the first BSS.

[0041] On the other hand, an embodiment of the present application provides a computer device, which includes a processor, a memory and a transceiver, wherein the memory stores a computer program, and the computer program is used to be executed by the processor so that the computer device implements the above-mentioned method for transmission.

[0042] On the other hand, an embodiment of the present application further provides a computer-readable storage medium, in which a computer program is stored. The computer program is loaded and executed by a processor so that a computer device executes the above-mentioned method for transmission.

[0043] In another aspect, a computer program product is provided, the computer program including computer instructions stored in a computer-readable storage medium. A processor of a computer device reads the computer instructions from the computer-readable storage medium and executes the computer instructions, causing the computer device to perform the above-mentioned method for transmission.

[0044] On the other hand, a chip is provided, which includes: a processor for calling and running a computer program from a memory, so that a computer device equipped with the chip executes the above-mentioned method for transmission.

[0045] On the other hand, a computer program is provided. The computer program is executed by a processor of a computer device to enable the computer device to perform the above-mentioned method for transmission.

[0046] The technical solutions provided in the embodiments of the present application can bring the following beneficial effects:

[0047] When the first STA device (non-AP STA) in the first BSS monitors that the transmission initiated by the first target station in the second BSS affects or interferes with the frame exchange of the first STA device, the corresponding first monitoring or reception situation information can be reported to the first AP device in the first BSS, so that the first AP device can subsequently take corresponding measures based on the first monitoring or reception situation information to reduce the impact or interference of the first target station in the second BSS on the first STA device, thereby reducing the transmission delay of the first STA device. BRIEF DESCRIPTION OF THE DRAWINGS

[0048] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0049] FIG1 is a schematic diagram of a network architecture of a communication system provided by one embodiment of the present application;

[0050] FIG2 is a flow chart of a method for transmission provided by an embodiment of the present application;

[0051] FIG3 is a flow chart of a method for transmission provided by an embodiment of the present application;

[0052] FIG4 is a flow chart of a method for transmission provided by one embodiment of the present application;

[0053] FIG5 is a flowchart of a method for transmission provided by an embodiment of the present application;

[0054] FIG6 is a system framework diagram for transmission according to an exemplary embodiment of the present application;

[0055] FIG7 is a flowchart of a method for transmission provided by an embodiment of the present application;

[0056] FIG8 is a schematic diagram of a transmission scenario involved in the embodiment shown in FIG7 ;

[0057] FIG9 is a schematic diagram of a transmission scenario involved in the embodiment shown in FIG7 ;

[0058] FIG10 is a schematic diagram of a transmission scenario involved in the embodiment shown in FIG7 ;

[0059] FIG11 is a schematic diagram of a transmission scenario involved in the embodiment shown in FIG7 ;

[0060] FIG12 is a schematic diagram of a transmission scenario involved in the embodiment shown in FIG7 ;

[0061] FIG13 is a schematic diagram of a transmission scenario involved in the embodiment shown in FIG7 ;

[0062] FIG14 is a schematic diagram of a transmission scenario involved in the embodiment shown in FIG7 ;

[0063] FIG15 is a block diagram of an apparatus for transmission provided by one embodiment of the present application;

[0064] FIG16 is a block diagram of an apparatus for transmission provided by one embodiment of the present application;

[0065] FIG17 is a block diagram of an apparatus for transmission provided by one embodiment of the present application;

[0066] FIG18 is a block diagram of an apparatus for transmission provided by one embodiment of the present application;

[0067] FIG19 is a schematic structural diagram of a computer device provided in one embodiment of the present application. DETAILED DESCRIPTION

[0068] In order to make the objectives, technical solutions and advantages of this application clearer, the implementation methods of this application will be further described in detail below with reference to the accompanying drawings.

[0069] The network architecture and business scenarios described in the embodiments of the present application are intended to more clearly illustrate the technical solutions of the embodiments of the present application, and do not constitute a limitation on the technical solutions provided by the embodiments of the present application. A person skilled in the art will appreciate that, with the evolution of the network architecture and the emergence of new business scenarios, the technical solutions provided by the embodiments of the present application are equally applicable to similar technical problems.

[0070] The technical solutions of the embodiments of the present application can be applied to various communication systems, such as Wireless Local Area Networks (WLAN), Wireless Fidelity (WiFi), or other communication systems.

[0071] For example, please refer to Figure 1, which shows a schematic diagram of the network architecture of a communication system 100 provided in one embodiment of the present application. The communication system 100 may include an access point 110 (ie, AP) and a station 120 (ie, STA) that accesses the network through the access point 110.

[0072] In some scenarios, an AP is also called an AP STA. In a sense, an AP is also a STA.

[0073] In some scenarios, a STA is also called a non-AP STA.

[0074] The communication in the communication system 100 can be communication between an AP and a non-AP STA, communication between a non-AP STA and a non-AP STA, or communication between a STA and a peer STA, where a peer STA may refer to a device that communicates with the STA on a peer-to-peer basis. For example, the peer STA may be an AP or a non-AP STA.

[0075] An AP acts as a bridge between wired and wireless networks, connecting wireless network clients and then connecting the wireless network to the Ethernet. An AP can be a terminal device with a Wi-Fi chip (such as a mobile phone) or a network device (such as a wireless router, wireless switch, or wireless repeater).

[0076] It should be understood that the role of STA in the communication system is not absolute. For example, in some scenarios, when a mobile phone is connected to a router, the mobile phone is a non-AP STA. When the mobile phone serves as a hotspot for other mobile phones, the mobile phone plays the role of AP.

[0077] APs and non-AP STAs can be devices used in the Internet of Vehicles, IoT nodes and sensors in the Internet of Things (IoT), smart cameras, smart remote controls, smart water and electricity meters in smart homes, and sensors in smart cities.

[0078] In some embodiments, a non-AP STA may support 802.11be. A non-AP STA may also support various current and future 802.11 family wireless local area network (WLAN) standards, such as 802.11ax, 802.11ac, 802.11n, 802.11g, 802.11b, and 802.11a.

[0079] In some embodiments, the AP may be a device supporting the 802.11be standard. The AP may also be a device supporting various current and future 802.11 family WLAN standards, such as 802.11ax, 802.11ac, 802.11n, 802.11g, 802.11b, and 802.11a.

[0080] In the embodiment of the present application, the STA may be a mobile phone, tablet computer, computer, virtual reality (VR) device, augmented reality (AR) device, wireless device in industrial control, set-top box, wireless device in self-driving, in-vehicle communication device, wireless device in remote medical, wireless device in smart grid, wireless device in transportation safety, wireless device in smart city, wireless device in smart home, wireless communication chip / application specific integrated circuit (ASIC) / system on chip (SOC), etc. that supports WLAN or WiFi technology.

[0081] The frequency bands supported by WLAN technology may include but are not limited to: low frequency bands (eg, 2.4 GHz, 5 GHz, 6 GHz) and high frequency bands (eg, 60 GHz).

[0082] FIG1 exemplarily shows one AP STA and two non-AP STAs. Optionally, the communication system 100 may include multiple AP STAs and other numbers of non-AP STAs, which is not limited in the embodiments of the present application.

[0083] It should be understood that in the embodiments of the present application, a device having communication functionality in a network / system may be referred to as a communication device. Taking the communication system 100 shown in FIG1 as an example, the communication device may include an access point 110 and a station 120 having communication functionality. Access point 110 and station 120 may be the specific devices described above and will not be described in detail here. The communication device may also include other devices in the communication system 100, such as a network controller, a gateway, or other network entities, which is not limited in the embodiments of the present application.

[0084] It should be understood that the terms "system" and "network" are often used interchangeably herein. The term "and / or" is simply a description of an association between related objects, indicating that three possible relationships exist. For example, "A and / or B" can represent: A exists alone, A and B exist simultaneously, or B exists alone. Furthermore, the character " / " generally indicates that the related objects are in an "or" relationship.

[0085] It should be understood that the "indication" mentioned in the embodiments of this application can be a direct indication, an indirect indication, or an indication of an association. For example, "A indicates B" can mean that A directly indicates B, for example, B can be obtained through A; it can also mean that A indirectly indicates B, for example, A indicates C, and B can be obtained through C; it can also mean that there is an association between A and B.

[0086] In the description of the embodiments of the present application, the term "corresponding" may indicate a direct or indirect correspondence between the two, or an association relationship between the two, or a relationship between indication and being indicated, configuration and being configured, etc.

[0087] In the embodiments of the present application, "predefined" may be implemented by pre-storing corresponding codes, tables, or other methods that can be used to indicate relevant information in a device (e.g., including an access point and a station). The present application does not limit the specific implementation method. For example, predefined may refer to a method defined in a protocol.

[0088] In the embodiments of the present application, the “protocol” may refer to a standard protocol in the communication field, for example, it may include a WiFi protocol and related protocols used in future WiFi communication systems, and the present application does not limit this.

[0089] The access point 110 and the station 120 may be associated and communicated with each other via wireless local area network technology. The above-mentioned association refers to the process of wireless link service negotiation between the STA and the AP to establish a wireless link between the STA and the AP.

[0090] In TWT, a schedule is established between the terminal and the AP (this schedule is agreed upon by the terminal and the AP). The schedule is composed of TWT time periods. When the negotiated time period between the terminal and the AP arrives, the terminal wakes up, waits for the trigger frame sent by the AP, and performs a data exchange. After the transmission is completed, it returns to sleep. Each terminal can independently negotiate with the AP and each terminal has a unique TWT time period.

[0091] TWT allows the AP to manage the behavior of the BSS to reduce contention between sites and reduce the awake time of sites in power management mode. This is achieved by sites operating in non-overlapping time and / or frequency domains and concentrating frame exchanges in predefined service periods. Therefore, to ensure the application effect of TWT, the AP generally requires that all associated sites within the BSS can join the TWT so that the AP can schedule them. According to the TWT protocol of 11ax, the HE (High-Efficiency, specifically 11ax) AP will request all associated sites that claim to support TWT to participate in TWT. Non-AP sites should perform individually customized TWT (individual TWT) protocol negotiation or join the broadcast TWT (broadcast TWT) after receiving the AP's indication to join TWT. In addition, the service period (SP) of TWT includes trigger-enabled SPs and non-trigger-enabled SPs. The TWT scheduling AP schedules by sending trigger frames in the trigger-enabled SP. At the same time, 11ax stipulates that TWT scheduled sites cannot transmit frames to TWT scheduling AP outside the broadcast TWT SP, and in trigger-enabled broadcast TWT, TWT scheduled sites cannot transmit frames that do not carry the High Efficiency Trigger-Based Physical layer Protocol Data Unit (HE TB PPDU) to the TWT scheduling AP.

[0092] IEEE 802.11be proposes Restricted TWT operation to allow APs to utilize enhanced medium access protection and resource reservation mechanisms to provide more predictable, lower worst-case latency and jitter, and higher reliability for the transmission of low-latency services. Currently, Restricted TWT mainly adds two channel access rules in terms of channel access: an extremely high throughput (EHT) non-AP station (non-AP STA) as the owner of a transmission opportunity (TXOP) shall ensure that its TXOP ends before the start of any restricted TWT service period when the TXOP is obtained outside the restricted TWT service period; the EHTAP will schedule a quiet interval that overlaps with the restricted TWT service period to shield the operations of legacy STAs that support the Quiet Element (QIE) within the TWT SP, but the shielding operation within the quiet interval is invalid for non-AP EHT STAs.

[0093] IEEE 802.11be defines enhanced media access protection operations for Restricted TWT, which mainly restricts the behavior of stations in the BSS that perform Restricted TWT operations. Since overlapping BSSs (OBSSs) often exist in Wi-Fi networks, OBSSs will interfere with the Restricted TWT operations in the BSS, interfering with the AP or Restricted TWT member stations from obtaining transmission opportunities in a timely manner to transmit low-latency service data during the Restricted TWT service period. Therefore, it is necessary to define a coordination mechanism between multiple APs or multiple BSSs to perform media protection for transmissions during the Restricted TWT service period in the BSS. The following are the main issues that need to be addressed:

[0094] 1) How to identify interfering links, especially OBSS STAs, where OBSS STAs are STAs in the OBSS whose transmissions interfere with the AP of the BSS where Restricted TWT operates or the transmissions of r-TWT STAs during the Restricted TWT service period;

[0095] 2) How to control the behavior of OBSS STAs from the perspective of protecting the transmission of low-latency services by APs or Restricted TWT member stations during the Restricted TWT service period;

[0096] 3) How to protect the transmission of low-latency service data during the Restricted TWT service period while reducing the impact on the transmission between sites in the OBSS. For example, if the AP of the BSS where the Restricted TWT operation is located and the r-TWT STA are not in the OBSS overlapping area, the OBSS AP can be allowed to initiate downlink transmission with the OBSS STA during the Restricted TWT service period.

[0097] Please refer to Figure 2, which shows a flow chart of a method for transmission provided by an embodiment of the present application. The method can be performed by a first station STA device in a first BSS, where the first STA device is a non-AP STA. The first basic service set BSS includes a first AP device and at least one non-AP STA device associated with the first AP device; the first STA device is any one of the at least one non-AP STA device associated with the first AP device; the non-AP STA device can be one of the stations 120 in the network architecture shown in Figure 1, and the AP device can be the access point 110 in the network architecture shown in Figure 1. The method can include the following steps:

[0098] Step 201, monitor or receive data units in the first BSS channel to obtain first monitoring or reception situation information; the first monitoring or reception situation information is used to indicate the transmission information of the first target station in the second BSS monitored or received by the first STA device; the first target station is a station that initiates transmission that affects or interferes with the frame exchange of the first STA device in the first BSS.

[0099] In some embodiments, the first BSS channel is a channel used by the first STA device to compete for access and transmission.

[0100] The second BSS is a BSS other than the first BSS. For example, the second BSS may be an OBSS of a station in the first BSS, or a BSS operating on the same channel as the first BSS.

[0101] Among them, the solution shown in the embodiment of the present application is applicable to the scenario where the first STA device performs channel competition or transmission in the first BSS channel within a specified time period, for example, the scenario where the first STA device performs channel competition or transmission based on the r-TWT mechanism.

[0102] Optionally, the above data unit may be a protocol data unit (Presentation Protocol Data Unit, PPDU).

[0103] Step 202: Report first monitoring or receiving status information to a first AP device in a first BSS.

[0104] In some embodiments, the first AP device may subsequently take corresponding measures based on the first monitoring or reception situation information to reduce the signal interference to the first STA device caused by the transmission of the first target site in the second BSS, including but not limited to restricting the transmission of the site in the second BSS, adjusting the first BSS channel used by the first STA device, adjusting the time for the first STA device to compete for the channel or transmit (such as r-TWT), etc.

[0105] The signal interference caused by transmission refers to the influence or interference caused by the initiated transmission on the frame exchange of other stations.

[0106] For example, the first monitoring or receiving situation information is used by the first access point AP device in the first BSS to share the target resource information and / or target site information with the second AP device in the second BSS; the target resource information and / or target site information is used by the second AP device to constrain the transmission of the site in the second BSS on the target channel and / or target time; the target channel and / or target time are the channels and / or times in the first BSS that require media access protection.

[0107] To sum up, in the solution shown in the embodiment of the present application, when the first STA device (non-AP STA) in the first BSS monitors that the transmission initiated by the first target station in the second BSS affects or interferes with the frame exchange of the first STA device, the corresponding first monitoring or reception situation information can be reported to the first AP device in the first BSS, so that the first AP device can subsequently take corresponding measures based on the first monitoring or reception situation information to reduce the impact or interference of the first target station in the second BSS on the first STA device, thereby reducing the transmission delay of the first STA device.

[0108] Please refer to Figure 3, which shows a flow chart of a transmission method provided by one embodiment of the present application. The method can be performed by a first AP device in a first BSS, where the first BSS includes the first AP device and at least one non-AP STA device associated with the first AP device. The non-AP STA device can be one of the stations 120 in the network architecture shown in Figure 1, and the AP device can be the access point 110 in the network architecture shown in Figure 1. The method can include the following steps:

[0109] Step 301, obtain monitoring or receiving situation information; the monitoring or receiving situation information is used to indicate the transmission information of the target station in the second BSS monitored or received by the station in the first BSS in the first BSS channel; the target station is the station that initiates the transmission and affects or interferes with the frame exchange of the station in the first BSS in the first BSS.

[0110] In some embodiments, the monitoring or reception status information obtained by the first AP device may include the monitoring or reception status information obtained by the non-AP STA in the first BSS monitoring or receiving the data unit, and / or the monitoring or reception status information obtained by the first AP device itself monitoring or receiving the data unit.

[0111] Accordingly, the stations in the first BSS may include non-AP STAs in the first BSS (such as the first STA device in the embodiment shown in FIG. 2 ) and / or the first AP device.

[0112] Step 302: Based on the monitoring or receiving information, the target resource information and / or target site information are shared with the second AP device in the second BSS; the target resource information and / or target site information are used by the second AP device to constrain the transmission of the site in the second BSS on the target channel and / or target time; the target channel and / or target time are the channels and / or times that require media access protection in the first BSS.

[0113] A direct or indirect communication connection is established between the first AP device and the second AP device, that is, data communication can be performed between the first AP device and the second AP device.

[0114] In some embodiments, the target channel may be all or part of the channels used by the stations in the first BSS; for example, the target channel may be all or part of the channels used by the stations in the first BSS that monitor the influence or interference from the second BSS.

[0115] The target time may be a time when stations in the first BSS may compete for channels or transmit.

[0116] To sum up, in the solution shown in the embodiment of the present application, when a station in the first BSS monitors that the transmission initiated by the target station in the second BSS affects or interferes with the frame exchange of the station in the first BSS, the first AP device in the first BSS can share the target resource information and / or target station information with the second AP device based on the corresponding monitoring or reception situation information, so that the second AP device can constrain the transmission in the second BSS, minimize the impact or interference of the station in the second BSS on the station in the first BSS, and thereby reduce the transmission delay of the station in the first BSS.

[0117] Please refer to Figure 4, which shows a flow chart of a method for transmission provided by one embodiment of the present application. The method can be performed by a second AP device in a second BSS, where the second BSS includes the second AP device and at least one non-AP STA device associated with the second AP device. The non-AP STA device can be one of the stations 120 in the network architecture shown in Figure 1, and the AP device can be the access point 110 in the network architecture shown in Figure 1. The method can include the following steps:

[0118] Step 401, receiving target resource information and / or target site information shared by the first AP device in the first BSS; the target resource information and / or target site information is shared by the first AP device based on monitoring or receiving situation information; the monitoring or receiving situation information is used to indicate the transmission information of the target site in the second BSS monitored or received by the site in the first BSS; the target site is a site that initiates transmission that affects or interferes with the frame exchange of the site in the first BSS.

[0119] Step 402: Based on the target resource information and / or target site information, constrain the transmission of sites in the second BSS on the target channel and / or target time; the target channel and / or target time are the channels and / or times that require medium access protection in the first BSS.

[0120] The above-mentioned constraints on the transmission of stations in the second BSS on the target channel and / or target time may refer to constraints on channel competition, transmission and other behaviors of stations in the second BSS on the target channel and / or target time.

[0121] The above-mentioned constraints on the transmission of stations in the second BSS on the target channel and / or target time may refer to constraints on the transmission of all or part of the stations in the second BSS (such as stations that are monitored by stations in the first BSS or are affected or interfered with by transmissions initiated by stations in the second BSS) on the target channel and / or target time.

[0122] To sum up, in the solution shown in the embodiment of the present application, when a station in the first BSS monitors that the transmission initiated by the target station in the second BSS affects or interferes with the frame exchange of the station in the first BSS, the first AP device in the first BSS can share the target resource information and / or target station information to the second AP device based on the corresponding monitoring or reception situation information. The second AP device can constrain the transmission in the second BSS, minimize the impact or interference of the station in the second BSS on the station in the first BSS, and thereby reduce the transmission delay of the station in the first BSS.

[0123] Please refer to Figure 5, which shows a flowchart of a method for transmission provided by one embodiment of the present application. The method can be performed by a third STA device in a second BSS; the second BSS includes a second AP device and at least one non-AP STA device associated with the second AP device; the third STA device is a non-AP STA, that is, one of the at least one non-AP STA associated with the second AP device; the non-AP STA device can be one of the stations 120 in the network architecture shown in Figure 1, and the AP device can be the access point 110 in the network architecture shown in Figure 1. The method can include the following steps:

[0124] Step 501, receiving a channel resource protection start notification frame sent by a second AP device in a second BSS; the channel resource protection start notification frame is sent by the second AP device after receiving the target resource information and / or target site information sent by the first AP device in the first BSS; the target resource information and / or target site information is shared by the first AP device based on monitoring or receiving situation information; the monitoring or receiving situation information is used to indicate the transmission information of the target site in the second BSS monitored or received by the site in the first BSS; the target site is a site that initiates transmission that affects or interferes with the frame exchange of the site in the first BSS.

[0125] Step 502: According to the channel resource protection start notification frame, the transmission of the third STA device on the target channel and / or target time is constrained; the target channel and / or target time is the channel and / or time that requires medium access protection in the first BSS.

[0126] To sum up, in the scheme shown in the embodiment of the present application, when a station in the first BSS monitors that the transmission initiated by the target station in the second BSS affects or interferes with the frame exchange of the station in the first BSS, the first AP device in the first BSS can share the target resource information and / or the target station information to the second AP device based on the corresponding monitoring or reception situation information. After the second AP device receives the target resource information and / or the target station information, it can instruct the third STA device in the second BSS to constrain the transmission on the target channel and / or target time through the channel resource protection start notification frame, so as to reduce the impact or interference of the station in the second BSS on the station in the first BSS as much as possible, thereby reducing the transmission delay of the station in the first BSS.

[0127] Based on the solutions shown in Figures 2 to 5 above, taking the second BSS as the OBSS of the first BSS as an example, please refer to Figure 6, which shows a system framework diagram for transmission involved in an exemplary embodiment of the present application. As shown in Figure 6, the system involved in the embodiment of the present application includes two BSSs, one is BSS1 corresponding to AP1 and its associated station STA1, and the other is BSS2 corresponding to AP2 and its associated station STA2. BSS2 is the OBSS of BSS1. To address the OBSS interference problem, resource protection is performed on the transmission between specific stations of BSS1 during a predetermined time period using the following method:

[0128] S61, BSS transmission-related stations (such as AP1 and STA1 in Figure 6) that need to perform wireless resource protection in a predetermined time period obtain specific information related to OBSS transmission (corresponding to the above-mentioned monitoring and receiving information) by monitoring or receiving OBSS PPDU.

[0129] STA1 may report specific information related to OBSS transmission obtained through monitoring or reception to AP1.

[0130] S62, AP1 shares the predetermined time period information (corresponding to the above-mentioned target time information, such as the r-TWT SP information corresponding to STA1) and / or the channel information (corresponding to the above-mentioned target channel) that requires wireless resource protection with AP2 (equivalent to the above-mentioned first AP device sharing the target resource information and / or target site information with the second AP device).

[0131] Optionally, AP1 may further share with AP2 the stations involved in the OBSS that require channel access and transmission constraints (such as information about stations involved in specific information related to OBSS transmission fed back by STA1 and / or AP1).

[0132] S63, after receiving the above information shared by AP1, AP2 restricts the channel access and transmission of the stations involved in the OBSS (ie, the relevant stations associated with AP2, such as STA2) before the starting time point of the above predetermined time period and / or during the predetermined time period.

[0133] Based on the schemes shown in Figures 2 to 5 above, please refer to Figure 7, which shows a flowchart of a method for transmission provided by one embodiment of the present application. The method can be performed by a first STA device in a first BSS, a first AP device in the first BSS, a second AP device in a second BSS, and a non-AP STA device in the second BSS; the first STA device is a non-AP STA; the non-AP STA device can be one of the stations 120 in the network architecture shown in Figure 1, and the AP device can be the access point 110 in the network architecture shown in Figure 1. The method can include the following steps:

[0134] Step 701: A first STA device monitors or receives a data unit in a first BSS channel to obtain first monitoring or receiving condition information.

[0135] Among them, the first monitoring or receiving situation information is used to indicate the transmission information of the first target site in the second BSS monitored or received by the first STA device; the first target site is the site whose initiated transmission affects or interferes with the frame exchange of the first STA device in the first BSS.

[0136] In other words, the first monitoring or receiving situation information is used to indicate the first target station monitored or received by the first STA device, where the transmission initiated in the second BSS affects or interferes with the first STA device.

[0137] In a scenario where the first STA device competes for a channel or transmits in the first BSS channel within a specified time period, the first STA device may monitor or receive data units in the first BSS channel within the above-mentioned specified time period; optionally, at other times outside the above-mentioned specified time period, the first STA device may not perform the steps of monitoring or receiving data units.

[0138] For example, in a scenario where the first STA device performs channel competition or transmission based on the r-TWT mechanism, the first STA device monitors or receives data units within the r-TWT SP period of the first STA device, and does not perform the action of monitoring or receiving data units outside the r-TWT SP period.

[0139] The above data unit may be a PPDU.

[0140] The second BSS may be the OBSS of the first BSS, or may be another BSS operating on the same channel as the first BSS.

[0141] In some embodiments, the first monitoring or receiving situation information is used by the first access point AP device in the first BSS to share the target resource information and / or target site information to the second AP device in the second BSS; the target resource information and / or target site information is used by the second AP device to constrain the transmission of the site in the second BSS on the target channel and / or target time; the target channel and / or target time are the channels and / or times in the first BSS that require media access protection, for example, they may be the channels and / or times corresponding to the impact or interference caused by the transmission initiated by the site in the second BSS on the site in the first BSS.

[0142] In some embodiments, the first monitoring or receiving situation information includes site information of the first target site.

[0143] The site information may include at least one of information related to the transmission of the monitored or received data unit and information related to the site corresponding to the monitored or received data unit.

[0144] In some embodiments, when the data unit is a PPDU, the site information may include PPDU transmission information corresponding to the PPDU; the PPDU transmission information includes at least one of the following transmission sub-information:

[0145] Transmission type, BSS color (BSS Colour), BSS identifier (BSSID), sender association identifier (AID), sender partial AID, sender media access control (MAC) address, receiver association identifier AID, receiver partial AID, receiver MAC address; where the transmission type includes uplink transmission, downlink transmission, or point-to-point P2P transmission.

[0146] In some embodiments, when the first STA device monitors or receives a data unit, if the BSS identification information contained in the first PPDU monitored or received is different from the BSS identification information of the first BSS, it is determined that the site information carried by the first PPDU includes information of the first target site, that is, the site corresponding to the first PPDU is the first target site.

[0147] Among them, when the first STA device monitors or receives data units on the first BSS channel, if the identification information of the BSS corresponding to the monitored or received PPDU is different from the identification information of the current BSS, it means that the first STA device receives the PPDU sent by the station in other BSS (such as OBSS). That is to say, in this case, the station in the other BSS initiates transmission and affects or interferes with the channel contention or transmission of the first STA device.

[0148] In some embodiments, the BSS identification information includes at least one of a BSS ID and a BSS color.

[0149] For example, after the first STA device monitors or receives a PPDU on the first BSS channel, if the BSSID in the PPDU is different from the BSSID of the first BSS, it can be determined that the PPDU sent by a station in another BSS is received.

[0150] For another example, after the first STA device monitors or receives a PPDU on the first BSS channel, if the BSS color in the PPDU is different from the BSS color of the first BSS, it can be determined that a PPDU sent by a station in another BSS is received.

[0151] For another example, after the first STA device monitors or receives a PPDU on the first BSS channel, if the BSSID in the PPDU is different from the BSSID of the first BSS, and the BSS color in the PPDU is different from the BSS color of the first BSS, it can be determined that the PPDU sent by the station in the other BSS is received.

[0152] Step 702: The first STA device reports first monitoring or receiving situation information to the first AP device in the first BSS; correspondingly, the first AP device receives the first monitoring or receiving situation information.

[0153] For example, in response to the requirement to perform resource protection on transmissions between certain stations during a predetermined time period (such as an r-TWT SP period) of BSS1, stations related to the transmission in the BSS1, such as AP1 and / or non-AP stations associated with AP1 (such as STA11, STA12), monitor and obtain in real time before or during the predetermined time period for which resource protection is required, PPDU transmission information of PPDUs that may interfere with their own transmissions, such as peer-to-peer (P2P) or uplink and downlink PPDU transmission information within the BSS, or PPDU transmission information of PPDUs from the OBSS, including information related to received PPDUs that cannot be determined as intra-BSS PPDUs. Specifically, the information may be as follows:

[0154] 1) For uplink or downlink transmissions that need to be protected, AP1 and STA11 monitor the network within a specific time period (such as the r-TWT SP period used for STA11 uplink and downlink transmissions). When receiving an inter-BSS PPDU or other OBSS PPDU that cannot be determined as an intra-BSS PPDU, the OBSS transmission specific information carried by the PPDU is recorded (i.e., the PPDU transmission information of the PPDU from the OBSS), which may optionally include the BSS identification information of the sender (such as BSSID, BSS Color, etc.), sender identification information (such as sender AID, sender partial AID, sender MAC address, etc.), receiver identification information (such as receiver AID, receiver partial AID, receiver MAC address, etc.), uplink or downlink marking information, whether it is P2P transmission, and other information. Among them, STA11 will count or process the OBSS transmission specific information corresponding to the OBSS PPDU received within a specific time period, and report it to the associated AP1 in real time or periodically; at the same time, AP1 will count or process the OBSS transmission specific information corresponding to the OBSS PPDU received within a specific time period.

[0155] 2) For peer-to-peer transmissions requiring protection, STA11 and STA12 associated with the transmission monitor the network during a specific time period. Upon receiving an inter-BSS PPDU or other OBSS PPDU that cannot be identified as an intra-BSS PPDU, they record the OBSS transmission-specific information carried by the PPDU. STA11 and STA12 collect or process the OBSS transmission-specific information corresponding to the OBSS PPDUs received during the specific time period and report it to the associated AP1 in real time or periodically.

[0156] The first STA device may report the first monitoring or receiving situation information to the first AP device by reporting a message frame.

[0157] For example, the reporting message frame used to report the first monitoring or receiving situation information includes the PPDU transmission information carried by the PPDU monitored or received by the first STA device.

[0158] In some embodiments, the report message frame includes a PPDU transmission information element; the PPDU transmission information element includes: a PPDU transmission information control field, and a PPDU transmission information field;

[0159] The PPDU transmission control information field is used to indicate the information format of the PPDU transmission information field; for example, the PPDU transmission control information field can indicate what information is in the subsequent PPDU transmission information field, and whether the corresponding PPDU is a PPDU sent by a station in the OBSS, etc.

[0160] The PPDU transmission information field is used to carry PPDU transmission information.

[0161] In some embodiments, the PPDU transmission control information field includes at least one of the following information:

[0162] PPDU type indication information, used to indicate whether the monitored or received PPDU comes from a BSS other than the first BSS;

[0163] The number of PPDU transmission information;

[0164] The bitmap of PPDU transmission information is used to indicate the information type of the transmission sub-information contained in the PPDU transmission information.

[0165] In some embodiments, each bit position in the bitmap of the PPDU transmission information corresponds to a type of transmission sub-information, and the bit value of each bit position in the bitmap of the PPDU transmission information is used to indicate whether the corresponding transmission sub-information exists in the PPDU transmission information field.

[0166] In an embodiment of the present application, the PPDU transmission information element is used to indicate the relevant transmission information of the PPDU monitored or received by the station, such as the relevant PPDU transmission information of the OBSS PPDU or Intra-BSS PPDU monitored or received by the station. The format of the PPDU transmission information element can be defined as shown in Table 1 below.

[0167] Table 1

[0168]

[0169] The format of the PPDU transmission information control field in Table 1 above may be as shown in Table 2 below.

[0170] Table 2

[0171]

[0172] In the above Table 2, the OBSS / Intra-BSS PPDU subfield indicates whether the PPDU is an OBSS PPDU or an Intra-BSS PPDU. For example, when it is set to 1, it indicates an OBSS PPDU, and when it is set to 0, it indicates an Intra-BSS PPDU.

[0173] The PPDU transmission information number subfield may indicate the number of PPDU transmission information carried by the PPDU transmission information field.

[0174] Optionally, the format definition of the PPDU transmission information indication bitmap subfield can be as shown in Table 3.

[0175] Table 3

[0176]

[0177]

[0178] The format of the PPDU transmission information field in Table 1 above may be defined as shown in Table 4 below, which carries 0 or more PPDU transmission information.

[0179] Table 4

[0180] PPDU transmission information 1…PPDU transmission information n

[0181] The definition of the format of the PPDU transmission information in Table 4 above can be shown in Table 5 below.

[0182] Table 5

[0183]

[0184] In some embodiments, the meanings of the sub-fields in Table 5 above may be as follows:

[0185] Uplink / Downlink / P2P Transmission Flag Subfield: When the value is "01", it indicates uplink transmission, that is, the PPDU transmission is from a non-AP STA to an AP; when the value is "10", it indicates downlink transmission, that is, the PPDU transmission is from an AP to a non-AP STA; when the value is "11", it indicates P2P transmission, that is, the PPDU transmission is from a non-AP STA to another non-AP STA; the value "00" is reserved;

[0186] BSS Color subfield: indicates the color of the BSS where the PPDU sender is located;

[0187] Sender Partial AID subfield: indicates the partial AID of the PPDU sender;

[0188] Sender AID subfield: indicates the AID of the PPDU sender;

[0189] Sender MAC address subfield: indicates the MAC address of the sender;

[0190] Receiver Partial AID subfield: indicates the partial AID of the PPDU receiver;

[0191] Receiver AID subfield: indicates the AID of the PPDU receiver;

[0192] Receiver MAC address subfield: indicates the receiver's MAC address.

[0193] In some embodiments, the reporting message frame used to report the first monitoring or reception situation information is a wireless measurement report frame.

[0194] In some embodiments, reporting the first monitoring or receiving condition information to the first AP device in the first BSS includes:

[0195] When a wireless measurement request frame is received and the measurement type corresponding to the wireless measurement request frame includes a specified measurement type, first monitoring or receiving situation information is reported to the first AP device.

[0196] In some embodiments, the specified measurement type comprises a frame measurement type.

[0197] For stations to report on specific types of PPDU transmission information that they monitor or receive, the measurement request and measurement report mechanism defined in the IEEE 802.11 specification can be used. At the same time, by adding the content of the measurement request type in the measurement request frame (that is, adding the request type of PPDU transmission information or adding the request of PPDU transmission information to the existing specific request type), and adding the PPDU transmission information element corresponding to the newly added measurement type content in the measurement report frame, the station can report on the specific type of PPDU transmission information that it monitors or receives.

[0198] The measurement initiator station sends radio measurement request frames, which include a measurement request element and carry the PPDU transmission information request type. In particular, the "Frame" measurement type can be selected in the measurement request element. Then, after receiving the radio measurement request frame, the measurement responder station feeds back radio measurement report frames, where the radio measurement report frame carries the measurement report element. The station performing radio measurement can report the specific type of PPDU transmission information monitored or received by carrying the PPDU transmission information element in the measurement report element. In particular, the PPDU transmission information sub-element can be included in the measurement report field of the measurement report element with the measurement type of "Frame", and its format can be as shown in Table 6 and Table 7 below. For the sub-elements carried in the measurement report field of the frame report, a new PPDU transmission information sub-element is defined, and its format can be as shown in Table 8. The definitions of the PPDU transmission information control field and the PPDU transmission information field can refer to the definitions in Table 2, Table 4 and Table 5 above.

[0199] Table 6

[0200]

[0201] Table 7

[0202]

[0203]

[0204] Table 7 above shows the format of the optional sub-element field in Table 6.

[0205] Table 8

[0206] Sub-element ID length PPDU transmission information control PPDU transmission information table

[0207] Table 8 above is another format of PPDU transmission information elements.

[0208] Step 703: The first AP device monitors or receives a data unit in the second BSS channel to obtain second monitoring or receiving condition information.

[0209] Among them, the second monitoring or reception situation information is used to indicate the transmission information of the second target site in the second BSS monitored or received by the first AP device; the second target site is the site whose initiated transmission affects or interferes with the frame exchange of the first AP device in the first BSS.

[0210] In other words, the second monitoring or receiving situation information is used to indicate the second target station monitored or received by the first AP device, where the transmission initiated in the second BSS affects or interferes with the first AP device.

[0211] The second monitoring or receiving situation information includes PPDU transmission information carried by the PPDU monitored or received by the first AP device.

[0212] The process of the first AP device monitoring or receiving the data unit in the second BSS channel and obtaining the second monitoring or receiving situation information is similar to the process in the above step 701 and will not be repeated here.

[0213] Step 704: The first AP device shares the target resource information and / or target site information with the second AP device in the second BSS based on the monitoring or reception information; correspondingly, the second AP device receives the target resource information and / or target site information.

[0214] Among them, the information of the target resource and / or the information of the target site is used by the second AP device to constrain the transmission of the site in the second BSS on the target channel and / or target time; the target channel and / or target time are the channels and / or times that require media access protection in the first BSS.

[0215] The monitoring or receiving situation information may include the first monitoring or receiving situation information reported by the first STA device and / or the second monitoring or receiving situation information obtained by the first AP device monitoring or receiving the data unit.

[0216] In some embodiments, the access point AP within the BSS that requires protection (i.e., the first AP device described above, assumed to be AP1) shares information about the predetermined time period for which wireless resource protection is required, channel information, and information about OBSS-related sites that require channel access and transmission constraints with its neighboring AP (i.e., the second AP device corresponding to the OBSS, assumed to be AP2). The information about OBSS-related sites that require channel access and transmission constraints to protect wireless resources can be OBSS transmission-specific information (i.e., the PPDU transmission information described above) monitored or received by transmission-related sites that require resource protection (i.e., AP1 itself, and STA11 and / or STA12) within a specific time period.

[0217] Among them, when the first AP device shares the information of the target resource and / or the information of the target site with the second AP device, the information of the target resource and / or the information of the target site can be sent directly to the second AP device, or the information of the target resource and / or the information of the target site can be sent indirectly to the second AP device through the sites in the first BSS and the second BSS.

[0218] Correspondingly, the second AP device receives the target resource information and / or target site information directly sent by the first AP device; or receives the target resource information and / or target site information indirectly forwarded by the first AP device through the non-AP sites in the first BSS and the second BSS.

[0219] In step 705, the second AP device constrains the transmission of the sites in the second BSS on the target channel and / or target time based on the information of the target resources and / or the information of the target site; the target channel and / or target time are the channels and / or times that require medium access protection in the first BSS.

[0220] In some embodiments, the target resource information includes target channel information and / or target time information.

[0221] In some embodiments, the target channel is all or part of the channels used by stations in the first BSS that monitor or receive transmission information from the second BSS.

[0222] For example, when the above-mentioned target site includes the first target site monitored or received by the first STA device, the above-mentioned target channel may include all or part of the channels in the first BSS channel used by the first STA device (such as part of the channels in the first BSS channel that monitor the PPDU corresponding to the first target site).

[0223] In some embodiments, the target channel is a working channel on a link corresponding to the r-TWT operation established in the first BSS.

[0224] The PPDU corresponding to the first target site may be a PPDU sent by the first target site, or may be a PPDU sent to the first target site.

[0225] In some embodiments, the target time is the time at which a station in the first BSS that monitors or receives transmission information from the second BSS performs channel contention and / or transmission.

[0226] In some embodiments, the target time information includes:

[0227] Information about a time period corresponding to a restricted target wake-up time r-TWT service period for stations in the first BSS that monitor or receive transmission information from the second BSS.

[0228] In some embodiments, the time information of the first channel resource includes:

[0229] Information about the time period that coincides with the r-TWT service period of the stations in the first BSS that monitor or receive transmission information from the second BSS.

[0230] In some embodiments, the AP (for example, AP2) corresponding to the OBSS of the first BSS (i.e., the above-mentioned second BSS) receives the information of the predetermined time period for which wireless resource protection is required, and the information of the OBSS-related sites that require channel access and transmission constraints, shared by AP1 (i.e., the above-mentioned first AP device). Then, the AP (for example, AP2) can constrain the channel access and transmission of the sites involved in the OBSS (i.e., AP2 and / or related sites associated with AP2) before the starting time point of the predetermined time period and during the predetermined time period, to ensure that the sites involved in the OBSS will not interfere with or reduce interference with the frame transmission between the sites related to the protected BSS transmission (such as AP1, STA11, STA12) during the predetermined time period.

[0231] In some embodiments, when the above-mentioned second AP device constrains the transmission of sites in the second BSS on the target channel and / or target time based on the information of the target resources and / or the information of the target site, it can constrain the transmission of all sites in the second BSS on the target channel and / or target time based on the information of the target resources and / or the information of the target site.

[0232] Among them, when the second AP device constrains the transmission of sites in the second BSS on the target channel and / or target time, it can directly control all sites in the second BSS to constrain transmission on the target channel and / or target time without distinguishing the sites in the second BSS.

[0233] In some embodiments, constraining transmissions by stations in the second BSS at target times includes:

[0234] Control all stations in the second BSS to terminate the transmission opportunity before the starting time point corresponding to the target time; or,

[0235] Control all stations in the second BSS to be in a silent state during a time period corresponding to the target time; or,

[0236] Allow all stations in the second BSS to compete for the TXOP using the first EDCA parameter set during the time period corresponding to the target time; or,

[0237] Control all stations in the second BSS to terminate the transmission opportunity before the starting time point corresponding to the target time, and control all stations in the second BSS to be in a silent state during the time period corresponding to the target time; or,

[0238] Control all stations in the second BSS to terminate transmission opportunities before a start time point corresponding to the target time, and allow all stations in the second BSS to compete for TXOPs using a first Enhanced Distributed Channel Access (EDCA) parameter set within a time period corresponding to the target time;

[0239] The priority of the first EDCA parameter set is lower than the priority corresponding to the second EDCA parameter set used by the station in the first BSS that monitors or receives transmission information from the second BSS, or lower than the priority corresponding to the general EDCA parameter set.

[0240] The general EDCA parameter set may be a multi-user (MU) EDCA parameter set.

[0241] For example, when the target resource information and / or target site information includes target time information, the second AP (e.g., AP2) may use at least one of the following channel access rules when restricting channel access and transmission of all sites in the OBSS before the start time of the predetermined time period for which wireless resource protection is required and during the predetermined time period:

[0242] 1) All OBSS stations terminate their TXOPs before the start of the scheduled time period for radio resource protection.

[0243] 2) All OBSS stations are in a silent state during a predetermined time period during which radio resource protection is required;

[0244] 3) All OBSS stations can compete for channels to obtain TXOP during a predetermined time period when radio resource protection is required, but use an EDCA parameter set with a lower competition priority than that of BSS stations.

[0245] Among them, the above rules 1) and 2) can be used in combination, and the above rules 1) and 3) can also be used in combination.

[0246] In some embodiments, constraining transmissions by stations in the second BSS on a target channel and at a target time includes:

[0247] Control all stations in the second BSS to terminate transmission opportunities on the target channel before the start time point corresponding to the target time; or,

[0248] Control all stations in the second BSS to be in a silent state on the target channel during a time period corresponding to the target time; or,

[0249] Allow all stations in the second BSS to use the first EDCA parameter set during the time period corresponding to the target time to compete for the TXOP on the target channel; or,

[0250] Control all stations in the second BSS to terminate transmission opportunities on the target channel before a starting time point corresponding to the target time, and control all stations in the second BSS to be in a silent state on the target channel during a time period corresponding to the target time; or

[0251] Control all stations in the second BSS to terminate the transmission opportunity on the target channel before the starting time point corresponding to the target time, and allow all stations in the second BSS to use the first EDCA parameter set within the time period corresponding to the target time to compete for TXOP on the target channel.

[0252] In the above embodiment, when the target resource information and / or target site information includes target time information, the second AP (e.g., AP2) restricts channel access and transmission on the target channel for all sites in the OBSS before the start of the predetermined time period for wireless resource protection and during the predetermined time period. In this solution, the second AP does not need to restrict channel access and transmission on channels other than the target channel for sites in the OBSS, thereby reducing the impact on transmission between sites in the OBSS.

[0253] In some embodiments, constraining transmissions by stations in the second BSS on the target channel includes:

[0254] Control all stations in the second BSS to be in a silent state on the target channel; or,

[0255] All stations in the second BSS are allowed to use the first EDCA parameter set to compete for the TXOP on the target channel.

[0256] In some embodiments, when the target resource information and / or the target site information further includes site information of the target site, constraining transmission of the site in the second BSS on the target channel and / or target time based on the target resource information and / or the target site information includes:

[0257] According to the information of the target resource and / or the information of the target site, the transmission of the target site on the target channel and / or the target time is constrained.

[0258] Among them, when the second AP device constrains the transmission of the stations in the second BSS on the target channel and / or target time, it can constrain the transmission of the target stations in the second BSS that are monitored by the stations in the first BSS and are affected or interfered with, that is, control the target stations in the second BSS to constrain the transmission on the target channel and / or target time.

[0259] In some embodiments, when the target resource information and / or the target site information also includes the site information of the target site, constraining the transmission of the target site at the target time includes:

[0260] Control the target station to terminate the transmission opportunity before the starting time point corresponding to the target time; or,

[0261] Control the target site to be in a silent state during the time period corresponding to the target time; or,

[0262] Allow the target station to use the first EDCA parameter set to compete for TXOP during the time period corresponding to the target time; or,

[0263] Control the target station to terminate the transmission opportunity before the starting time point corresponding to the target time, and control the target station to be in a silent state during the time period corresponding to the target time; or,

[0264] The target station is controlled to terminate the transmission opportunity before a start time point corresponding to the target time, and the target station is allowed to compete for the TXOP using the first EDCA parameter set within a time period corresponding to the target time.

[0265] For example, when the target resource information and / or target site information includes target time information, the channel access and transmission of the sites involved in the OBSS transmission link that may interfere with the first BSS transmission before the start time point of the predetermined time period for which wireless resource protection is required and during the predetermined time period are restricted. For example, the OBSS transmission link that may interfere with the transmission of the first BSS includes the link between the site STA21 and the site STA22 (both STA21 and STA22 are sites in the OBSS and may be access points or non-access point sites), and at least one of the following channel access rules is adopted:

[0266] 1) STA21 and station STA22 terminate their TXOPs in advance before the start time of the predetermined time period during which wireless resource protection is required.

[0267] 2) STA21 and station STA22 are in a silent state during a predetermined time period during which wireless resource protection is required.

[0268] 3) All OBSS stations can compete for channels to obtain TXOP during a predetermined time period when radio resource protection is required, but use an EDCA parameter set with a lower competition priority than that of BSS stations.

[0269] 4) For stations involved in the OBSS transmission link other than STA21 and STA22 in the OBSS that do not interfere with BSS transmission, no channel access and transmission restrictions are performed.

[0270] The above rules 1) and 2) can be used in combination, and the above rules 1) and 3) can also be used in combination. The above rules 1) to 3) can also be used in combination with rule 4).

[0271] In some embodiments, when the target resource information and / or the target site information further includes site information of the target site, constraining the transmission of the target site on the target channel and target time includes:

[0272] Control the target station to terminate the transmission opportunity on the target channel before the start time point corresponding to the target time; or,

[0273] Control the target station to be in a silent state on the target channel during the time period corresponding to the target time; or,

[0274] Allowing the target station to use the first EDCA parameter set to compete for TXOP on the target channel during the time period corresponding to the target time; or

[0275] Control the target station to terminate the transmission opportunity on the target channel before the starting time point corresponding to the target time, and control the target station to be in a silent state on the target channel during the time period corresponding to the target time; or

[0276] The target station is controlled to terminate a transmission opportunity on the target channel before a start time point corresponding to the target time, and the target station is allowed to use the first EDCA parameter set to compete for a TXOP on the target channel within a time period corresponding to the target time.

[0277] In the above embodiment, when the target resource information and / or target station information includes target time information, the second AP (e.g., AP2) restricts channel access and transmission by the target station in the OBSS on the target channel before the start time of the predetermined time period requiring wireless resource protection and during the predetermined time period. In this solution, the second AP does not need to restrict channel access and transmission by the target station in the OBSS on channels other than the target channel, thereby reducing the impact on transmission between stations in the OBSS.

[0278] In some embodiments, constraining transmission of a target station in the second BSS on a target channel includes:

[0279] Control the target station in the second BSS to be in a silent state on the target channel; or,

[0280] The target station in the second BSS is allowed to contend for the TXOP on the target channel using the first EDCA parameter set.

[0281] In some embodiments, constraining the transmission of the target station on the target channel and / or target time based on the target resource information and / or the target station information includes:

[0282] According to the target resource information and / or the target site information, based on the target site's transmission role, constrain the target site's transmission on the target channel and / or target time;

[0283] The transmission role is used to indicate that the target station is a transmission sender or a transmission receiver in the transmission information from the second BSS monitored or received by the station in the first BSS.

[0284] In the above embodiment, the second AP may also perform differentiated transmission restrictions on the target station in the second BSS according to the transmission role of the target station in the second BSS in the influence or interference monitored or received by the station in the first BSS.

[0285] In some embodiments, when the target station is a transmission sender, constraining the transmission of the target station at the target time includes:

[0286] Control the target station to terminate the transmission opportunity before the starting time point corresponding to the target time; or,

[0287] Control the target station not to initiate a contention TXOP during the time period corresponding to the target time; or,

[0288] Allow the target station to use the first EDCA parameter set to compete for TXOP during the time period corresponding to the target time; or,

[0289] Control the target station to terminate the transmission opportunity before the starting time point corresponding to the target time, and control the target station not to initiate a contention TXOP within the time period corresponding to the target time; or,

[0290] The target station is controlled to terminate the transmission opportunity before a start time point corresponding to the target time, and the target station is allowed to compete for the TXOP using the first EDCA parameter set within a time period corresponding to the target time.

[0291] In some embodiments, when the target station is a transmission sender, constraining the target station's transmission on a target channel and a target time includes:

[0292] Control the target station to terminate the transmission opportunity on the target channel before the start time point corresponding to the target time; or,

[0293] Control the target station not to initiate a contention TXOP on the target channel during the time period corresponding to the target time; or,

[0294] Allowing the target station to use the first EDCA parameter set to compete for TXOP on the target channel during the time period corresponding to the target time; or

[0295] Control the target station to terminate the transmission opportunity on the target channel before the starting time point corresponding to the target time, and control the target station not to initiate a contention TXOP on the target channel during the time period corresponding to the target time; or,

[0296] The target station is controlled to terminate a transmission opportunity on the target channel before a start time point corresponding to the target time, and the target station is allowed to use the first EDCA parameter set to compete for a TXOP on the target channel within a time period corresponding to the target time.

[0297] In some embodiments, when the target station is a transmission sender, constraining transmission of the target station in the second BSS on the target channel includes:

[0298] Control the target station in the second BSS to be in a silent state on the target channel; or,

[0299] The target station in the second BSS is allowed to contend for the TXOP on the target channel using the first EDCA parameter set.

[0300] In some embodiments, when the target station is a transmission receiver, constraining the target station's transmission on a target channel and / or a target time includes:

[0301] Allow the target station to initiate transmission on the target channel and / or target time and send a specified type of frame to the second STA device;

[0302] And / or, the target site is prohibited from sending frames other than the specified type of frames to the second STA device on the target channel and / or target time; the second STA device is a site in the first BSS that monitors or receives transmission information from the second BSS and sends it to the target site; wherein the length of the response frame of the specified type of frame is less than or equal to the frame length threshold.

[0303] In the above embodiment, for the case where the target site is the transmission recipient, the target site can be allowed to initiate transmission on the target channel and / or target time and send information frames that require shorter response frames to be fed back to the second STA device; and / or, the target site is prohibited from sending information frames that require longer response frames to be fed back to the second STA device, and the target site is allowed to send information frames that require shorter response frames (such as confirmation frames) to the second STA device, thereby controlling the length of the frame sent by the second STA device to the target site, thereby controlling the impact or interference of the second STA device on the site in the first BSS when sending PPDU to the target device.

[0304] In the above embodiment, for an OBSS transmission link that may interfere with BSS transmission before the start time point of a predetermined time period requiring wireless resource protection and during the predetermined time period, channel access and transmission constraints may be differentially applied to stations involved in the OBSS transmission link based on whether the station involved in the OBSS transmission link is a sender or a receiver. For example, in a case where the sender station in the OBSS transmission link that may interfere with BSS transmission is STA21 and the receiver station is STA22 (both STA21 and STA22 are stations in the OBSS and may be access points or non-access point stations), at least one of the following channel access rules may be applied to the sender station STA21:

[0305] 1) STA21 terminates its TXOP in advance before the start time of the scheduled time period for wireless resource protection;

[0306] 2) STA21 initiates transmission without competing for the channel during a predetermined time period during which wireless resource protection is required;

[0307] 3) STA21 can compete for the channel to obtain TXOP during the predetermined time period when wireless resource protection is required, but adopts an EDCA parameter set with a lower contention priority;

[0308] For STA22, since sending PPDU to STA21 does not cause interference to the BSS transmission link, STA22 can be allowed to compete for the channel to obtain TXOP to initiate transmission during the predetermined time period requiring wireless resource protection. However, during the TXOP when it initiates transmission, the length of the PPDU sent by STA21 to STA22 is controlled within a given threshold range, for example, only an acknowledgment frame is sent.

[0309] In some embodiments, when the second AP constrains the transmission of sites in the second BSS on the target channel and / or target time based on the information of the target resources and / or the information of the target site, it may send a channel resource protection enable notification frame to the third STA device in the second BSS based on the information of the target resources and / or the information of the target site; the channel resource protection enable notification frame is used to instruct the third STA device to constrain the transmission on the target channel and / or target time.

[0310] In some embodiments, the channel resource protection on notification frame includes a protected period element;

[0311] The protected period element includes a protected period control field, a protected period count field, a protected period field, a protected period duration field, and a protected period offset field;

[0312] The protected period control field is used to indicate a method for constraining transmission corresponding to the time information;

[0313] The protected period count field is used to indicate the number of TBTTs in the beacon interval where the start time of the next time period is reached;

[0314] The protected period field is used to indicate the number of beacon intervals between the start times of the time period;

[0315] The protected period duration field is used to indicate the duration of the time period;

[0316] The protected period offset field is used to indicate the offset value between the start time point of the time period and the TBTT defined by the protected period count field.

[0317] In some embodiments, the protected period control field includes a resource protection mode indication bitmap;

[0318] Each bit position in the resource protection mode indication bitmap corresponds to a resource protection mode, and the bit value of each bit position in the resource protection mode indication bitmap is used to indicate whether the corresponding resource protection mode is enabled.

[0319] In some embodiments, a channel resource protection operation notification frame is sent to the third STA device; the channel resource protection operation notification frame is used to instruct the third STA device to end or restart the constraint on transmission on the target channel and / or target time.

[0320] In some embodiments, the channel resource protection operation notification frame includes an indication flag;

[0321] The indication flag is used to indicate whether to close or restart the constraint on transmission on the target channel and / or target time.

[0322] In the above embodiment, the protected period element may be used to indicate protected period information and the channel resource protection mode or measure adopted during the protected period, and its format definition may be as shown in Table 9 below.

[0323] Table 9

[0324]

[0325] The format of the protected period control field in Table 9 above may be as shown in Table 10 below.

[0326] Table 10

[0327]

[0328] Taking the target resource information and / or target site information including the target time as an example, the definition of the resource protection mode indication bitmap subfield in Table 10 above may be as shown in Table 11.

[0329] Table 11

[0330]

[0331] The definitions of other fields in Table 9 above can be as follows:

[0332] The protected period count field is set to the number of target beacon transmission intervals (TBTT) to reach the beacon interval where the next protected period starts. A value of 0 indicates reservation.

[0333] The Protection Period field is set to the number of beacon intervals between the start times of the scheduled protection periods defined by this element; a value of 0 indicates that no protection period is defined.

[0334] The protected period duration field is set to the duration of the protected period, and the unit is expressed in time unit (TU).

[0335] Protected period offset field: set to the offset value between the start time of the protected period and the TBTT defined by the protected period count field.

[0336] In the above embodiment, the channel resource protection notification frame is used by the initiator to indicate to the responder the start of the protected period information and / or the adopted channel resource protection mode or measure. The action field format of the frame is shown in Table 12.

[0337] Table 12

[0338] Order Information 1 Category 2 Protected Action 3 Dialog Token 4 Protected Action Identifier 5 Protected Period Element

[0339] The category field in Table 12 above is defined in accordance with the provisions of the IEEE 802.11 specification;

[0340] The protected action domains in Table 12 above are defined in accordance with the provisions of the IEEE 802.11 specification;

[0341] The Dialog Token field in Table 12 is set to a non-zero value by the initiator and to a copy of the corresponding value in the received Channel Resource Protection Notification frame by the responder. A match between the Dialog Token value in the action initiated by the sender and the value in the action frame sent by the responder indicates that they belong to the same action event.

[0342] The protected action identification field in Table 12 above is used to uniquely identify the channel resource protection action event indicated by this frame.

[0343] The protected period element field is as defined in Tables 9 to 11 above.

[0344] The channel resource protection operation notification frame in the above embodiment is used to close or reopen a previously initiated channel resource protection action event. The action field format of the frame may be as shown in Table 13.

[0345] Table 13

[0346] Order information 1 Category 2 Protected Action 3 Dialog Token 4 Protected Action Flag 5 Close Indicator

[0347] The category field in Table 13 above is defined in accordance with the provisions of the IEEE 802.11 specification.

[0348] The protected action domains in Table 13 above are defined in accordance with the IEEE 802.11 specification.

[0349] The dialogue token field in Table 13 above is set to a non-zero value by the initiator and is set to a copy of the corresponding value of the received channel resource protection operation notification frame by the responder.

[0350] The protected action identification field in Table 13 above is used to indicate the channel resource protection action event corresponding to the operation.

[0351] The whether to close indication flag field in the above Table 13 is used to indicate whether to close or reopen the channel resource protection action event indicated by the protected action identification field.

[0352] The channel resource protection activation notification frame is generally sent by the AP and can be a broadcast / multicast frame or a unicast frame. When the channel resource protection activation notification frame is a broadcast frame, it notifies the non-AP STA associated with the AP to activate the relevant channel resource protection; when the channel resource protection notification frame is a multicast frame, it notifies the non-AP STA associated with the AP (identified by the destination multicast receiving address) that belongs to the indicated multicast group to activate the relevant channel resource protection; when the channel resource protection notification frame is a unicast frame, it notifies a specific non-AP STA associated with the AP (identified by the destination receiving address) to activate the relevant channel resource protection.

[0353] Channel resource protection operation notification frames are typically sent by the AP and can be broadcast / multicast or unicast frames. When broadcast, they notify non-AP STAs associated with the AP to perform the relevant channel resource protection operation. When multicast, they notify non-AP STAs associated with the AP (identified by the destination multicast address) that belong to the indicated multicast group and that are associated with the AP to perform the relevant channel resource protection operation. When unicast, they notify a specific non-AP STA associated with the AP (identified by the destination address) that is associated with the AP to perform the relevant channel resource protection operation.

[0354] Correspondingly, on the third STA device side, the third STA device receives the channel resource protection start notification frame sent by the second AP device in the second BSS; the channel resource protection start notification frame is sent by the second AP device after receiving the target resource information and / or target site information sent by the first AP device in the first BSS; the target resource information and / or target site information are shared by the first AP device based on the monitoring or receiving situation information; the monitoring or receiving situation information is used to indicate the transmission information of the target site in the second BSS monitored or received by the station in the first BSS; the target site is the site that initiates the transmission and affects or interferes with the frame exchange of the station in the first BSS in the first BSS; according to the channel resource protection start notification frame, the transmission of the third STA device on the target channel and / or target time is constrained; the target channel and / or target time are the channels and / or time in the first BSS that require media access protection.

[0355] In some embodiments, the third STA device constrains transmission of the third STA device at a target time, including:

[0356] Terminate the TXOP before the start time corresponding to the target time; or

[0357] Control all stations in the second BSS to be in a silent state during a time period corresponding to the target time; or,

[0358] Do not initiate a contention TXOP during the time period corresponding to the target time; or,

[0359] Using the first EDCA parameter set to compete for TXOP during the time period corresponding to the target time; or,

[0360] Terminate the TXOP before the start time corresponding to the target time and remain in silence for the time period corresponding to the target time; or

[0361] Terminate the TXOP before the start time corresponding to the target time, and do not initiate a contention TXOP during the time period corresponding to the target time; or

[0362] terminating the TXOP before the start time point corresponding to the target time, and allowing the first EDCA parameter set to be used to contend for the TXOP during the time period corresponding to the target time; or

[0363] Allowing transmission to be initiated on a target channel and / or target time and sending a specified type of frame to the second STA device; and / or prohibiting sending frames other than the specified type of frame to the second STA device.

[0364] In some embodiments, the third STA device constrains transmission of the third STA device on a target channel and at a target time, including:

[0365] Before the start time corresponding to the target time, terminate the TXOP on the target channel; or,

[0366] Control all stations in the second BSS to be in a silent state on the target channel during a time period corresponding to the target time; or,

[0367] During the time period corresponding to the target time, no contention TXOP is initiated on the target channel; or,

[0368] Using the first EDCA parameter set during the time period corresponding to the target time, competing for the TXOP on the target channel; or,

[0369] Before the start time corresponding to the target time, terminate the TXOP on the target channel and remain in a silent state on the target channel during the time period corresponding to the target time; or

[0370] Before the start time corresponding to the target time, terminate the TXOP on the target channel and do not initiate a contention TXOP on the target channel during the time period corresponding to the target time; or

[0371] Before the start time corresponding to the target time, terminate the TXOP on the target channel and allow contention for the TXOP on the target channel using the first EDCA parameter set during the time period corresponding to the target time; or

[0372] Allowing transmission to be initiated on the target channel and / or target time and sending a specified type of frame to the second STA device; and / or prohibiting sending frames other than the specified type of frame to the second STA device on the target channel and / or target time.

[0373] The following uses different scenarios as examples to introduce the solutions involved in this application:

[0374] Scene 1

[0375] Please refer to Figure 8, which shows a schematic diagram of a transmission scenario involved in an embodiment of the present application. As shown in Figure 8, there are two BSSs in the Wi-Fi system, one operated by AP1 and its associated station STA1, and the other operated by AP2 and its associated station STA2. To address the OBSS interference issue, the above-mentioned solution of the present application is used to protect resources for transmission between specific stations in the BSS during a predetermined time period (i.e., a protected period).

[0376] Specifically, BSS transmission-related stations that need to perform wireless resource protection in a predetermined time period (such as AP1 and STA1 in Figure 8) obtain OBSS transmission-specific information (i.e., PPDU transmission information corresponding to the PPDU sent by the station in the OBSS) by monitoring or receiving OBSS PPDU, wherein, by monitoring or reporting the specific type of PPDU transmission information received, STA1 feeds back the obtained information to AP1 through a wireless measurement report frame; AP1 shares the predetermined time period information for which wireless resource protection is required (such as r-TWT SP information corresponding to STA1), and the station information of the OBSS-related stations that need to perform channel access and transmission constraints to protect wireless resources (such as the OBSS transmission-related station information fed back by STA1 and / or AP1) with AP2; after receiving the above information, AP2 constrains the channel access and transmission of the stations involved in the OBSS (i.e., the related stations associated with AP2, such as STA2) during the predetermined time period by sending a channel resource protection start notification frame and / or a channel resource protection operation notification frame. The details are as follows:

[0377] As shown in Figure 10, the sender information of the OBSS PPDU received by STA1 includes the identification information of AP2 (such as a partial AID, AID, or MAC address of AP2) and / or the receiver information of the OBSS PPDU received by STA1 includes the identification information of the station associated with AP2 (set to STA2) (such as a partial AID, AID, or MAC address of STA2), and the sender information of the OBSS PPDU does not include the identification information of STA2 (associated with AP2), then AP2 adopts at least one of the following channel access rules:

[0378] 1) AP2 terminates its TXOP before the start time of the protected period (e.g., r-TWT service period);

[0379] 2) AP2 does not compete for the channel to initiate transmission during the protected period;

[0380] 3) AP2 can compete for the channel to obtain TXOP during the protected period but adopts an EDCA parameter set with a lower contention priority;

[0381] Furthermore, STA2 adopts at least one of the following channel access rules:

[0382] 1) Allow STA2 to compete for the channel in the protected period to obtain TXOP to initiate uplink transmission. During the TXOP when it initiates transmission, ensure that the PPDU length sent by the responder is controlled within a given threshold.

[0383] Scene 2

[0384] Please refer to Figure 9, which shows a schematic diagram of a transmission scenario involved in an embodiment of the present application. As shown in Figure 9, there are two BSSs in the Wi-Fi system, one is the BSS operated by AP1 and its associated station STA1, and the other is the OBSS operated by AP2 and its associated station STA2. To address the OBSS interference problem, the above-mentioned solution of the present application is used to protect resources for transmission between specific stations of a specific BSS during a predetermined time period (i.e., a protected period).

[0385] Specifically, BSS transmission-related stations that need to perform wireless resource protection in a predetermined time period (such as AP1 and STA1 in Figure 9) obtain OBSS transmission-specific information by monitoring or receiving OBSS PPDU, wherein, by monitoring or reporting the received specific type of PPDU transmission information, STA1 feeds back the obtained PPDU transmission information to AP1 through a wireless measurement report frame; AP1 shares the predetermined time period information for which wireless resource protection is required (such as r-TWT SP information corresponding to STA1), and the OBSS-related stations that need to perform channel access and transmission constraints to protect wireless resources (such as the OBSS transmission-related station information fed back by STA1 and / or AP1) with AP2; after receiving the information, AP2 constrains the channel access and transmission of the OBSS-related stations (i.e., the related stations associated with AP2, such as STA2) during the predetermined time period by sending a channel resource protection start notification frame and / or a channel resource protection operation notification frame. The details are as follows:

[0386] The sender information of the OBSS PPDU received by STA1 includes the identification information of AP2, and / or the receiver information of the OBSS PPDU received by STA1 includes the identification information of the station associated with AP2 (set to STA2). At the same time, the sender information of the OBSS PPDU received by STA1 also includes the identification information of STA2 (associated with AP2). AP2 adopts at least one of the following channel access rules:

[0387] 1) AP2 terminates its TXOP before the start of the protected period (e.g., r-TWT service period);

[0388] 2) AP2 does not compete for the channel to initiate transmission during the protected period;

[0389] 3) AP2 competes for the channel to obtain TXOP during the protected period but uses EDCA parameters with lower contention priority;

[0390] Furthermore, STA2 adopts at least one of the following channel access rules:

[0391] 1) STA2 terminates its TXOP before the start of the protected period (e.g., r-TWT service period);

[0392] 2) STA2 does not compete for the channel to initiate transmission during the protected period;

[0393] 3) STA2 contends for TXOP during the protected period but adopts EDCA parameters with lower contention priority.

[0394] Scene 3 and Scene 4

[0395] Please refer to Figures 10 and 11, which show schematic diagrams of two transmission scenarios involved in the embodiments of the present application. As shown in Figures 10 and 11, there are two BSSs in the Wi-Fi system, one is the BSS operated by AP1 and its associated station STA1 or STA3, and the other is the OBSS operated by AP2 and its associated station STA2. To address the OBSS interference problem, the solution involved in this application is used to protect resources for transmissions between specific stations of a specific BSS (i.e., the BSS operated by AP1 and its associated station STA1 or STA3) during a predetermined time period (i.e., a protected period).

[0396] Specifically, BSS transmission-related stations that need to perform wireless resource protection during a predetermined time period (such as AP1 and STA1 in Figures 10 and 11) obtain OBSS transmission-specific information by monitoring or receiving OBSS PPDU, wherein, through the reporting scheme of the specific type of PPDU transmission information monitored or received, STA1 feeds back the obtained PPDU transmission information to AP1 through a wireless measurement report frame; AP1 shares the predetermined time period information for which wireless resource protection is required (such as the r-TWT SP information corresponding to STA1), as well as the station information of the OBSS-related stations that need to perform channel access and transmission constraints to protect wireless resources (such as the OBSS transmission-related station information fed back by STA1 and / or AP1 in the figure) with AP2; after receiving the above information, AP2 constrains the channel access and transmission of the OBSS-related stations (i.e., the related stations associated with AP2, such as STA2) during the predetermined time period by sending a channel resource protection start notification frame and / or a channel resource protection operation notification frame. The details are as follows:

[0397] In scenarios 3 and 4, the sender identification information of the OBSS PPDU received by STA1 does not include the identification information of AP2, but includes the identification information of the station associated with AP2 (set as station STA2). STA2 then adopts at least one of the following channel access rules:

[0398] 1) STA2 terminates its TXOP before the start of the protected period (r-TWT service period);

[0399] 2) STA2 does not compete for the channel to initiate transmission during the protected period;

[0400] 3) STA2 competes for TXOP during the protected period but uses EDCA parameters with lower competition priority;

[0401] Furthermore, AP2 adopts at least one of the following channel access rules:

[0402] 1) If AP2 initiates transmission with STA2 using the TXOP acquired before the start time of the protected period, it terminates its TXOP in advance before the start time of the protected period;

[0403] 2) AP2 competes for the channel to obtain a TXOP during the protected period, but when obtaining the TXOP, it only initiates transmission to its associated stations (set as STA3) other than STA2, where the sender identification information of the OBSS PPDU received by STA1 does not include the identification information of STA3;

[0404] 3) AP2 competes for the channel to obtain a TXOP during the protected period. However, after obtaining the TXOP, if AP2 sends a trigger frame to trigger STA2's uplink transmission, it ensures that the length of STA2's uplink transmission is less than or equal to a threshold. Specifically, if the trigger frame sent by AP2 is a MU-BAR or GCR MU-BAR trigger frame, the uplink length subfield (UL Length subfield) in the general information field of the trigger frame corresponding to triggering STA2's uplink transmission is less than or equal to 418, or the uplink length subfield (UL Length subfield) in the general information field of the trigger frame corresponding to triggering STA2's uplink transmission is less than or equal to 76.

[0405] Scene 5

[0406] Please refer to Figure 12, which shows a schematic diagram of a transmission scenario involved in an embodiment of the present application. As shown in Figure 12, there are two BSSs in the Wi-Fi system, one is the BSS operated by AP1 and its associated station STA1, and the other is the OBSS operated by AP2 and its associated station STA2. To address the OBSS interference problem, the solution involved in this application is used to protect resources for transmissions between specific stations in a specific BSS (i.e., the BSS operated by AP1 and its associated station STA1) during a predetermined time period (i.e., a protected period).

[0407] Specifically, BSS transmission-related stations that need to perform wireless resource protection during a predetermined time period (such as AP1 and STA1 in Figure 12) obtain OBSS transmission-specific information by monitoring or receiving OBSS PPDU, wherein STA1 feeds back the obtained information to AP1 through a wireless measurement report frame through a reporting scheme of a specific type of PPDU transmission information monitored or received; AP1 shares the information of the predetermined time period for which wireless resource protection is required (such as r-TWT SP information corresponding to STA1), as well as the station information of the OBSS-related stations that need to perform channel access and transmission constraints to protect wireless resources (such as the station information of OBSS transmission involved fed back by STA1 and / or AP1) with AP2; after receiving the information, AP2 constrains the channel access and transmission of the OBSS-related stations (i.e., the related stations associated with AP2, such as STA2) during the predetermined time period by sending a channel resource protection start notification frame and / or a channel resource protection operation notification frame. The details are as follows:

[0408] If the sender identification information of the OBSS PPDU received by STA1 includes the identification information of STA2 and / or the identification information of AP2, and the sender identification information of the OBSS PPDU received by AP1 includes the identification information of AP2 and / or the identification information of STA2, then AP2 adopts at least one of the following channel access rules:

[0409] 1) AP2 terminates its TXOP before the start time of the protected period (r-TWT service period);

[0410] 2) AP2 does not compete for the channel to initiate transmission during the protected period;

[0411] 3) AP2 can compete for the channel to obtain TXOP during the protected period but adopts an EDCA parameter set with a lower contention priority;

[0412] STA2 adopts at least one of the following channel access rules:

[0413] 1) STA2 terminates its TXOP before the start time of the protected period;

[0414] 2) STA2 does not compete for the channel to initiate transmission during the protected period;

[0415] 3) During the protected period, STA2 can contend for the channel to obtain TXOP but adopts an EDCA parameter set with a lower contention priority.

[0416] Scenes 6 and 7

[0417] Please refer to Figures 13 and 14, which illustrate two transmission scenarios involved in embodiments of the present application. As shown in Figures 13 and 14, there are two BSSs in the Wi-Fi system, one is the BSS operated by AP1 and its associated station STA1, and the other is the OBSS operated by AP2 and its associated station STA2. To address the OBSS interference issue, the solution involved in this application performs resource protection for transmissions between specific stations of a specific BSS (i.e., the BSS operated by AP1 and its associated station STA1) during a predetermined time period (i.e., a protected period).

[0418] Specifically, BSS transmission-related stations that need to perform wireless resource protection during a predetermined time period (such as AP1 and STA1 in Figures 13 and 14) obtain OBSS transmission-specific information by monitoring or receiving OBSS PPDU, wherein, through the reporting scheme of the specific type of PPDU transmission information monitored or received, STA1 feeds back the obtained PPDU transmission information to AP1 through a wireless measurement report frame; AP1 shares the predetermined time period information for which wireless resource protection is required (such as the r-TWT SP information corresponding to STA1), and the station information of the OBSS-related stations that need to perform channel access and transmission constraints to protect wireless resources (such as the OBSS transmission-related station information fed back by STA1 and / or AP1) with AP2; after receiving the information, AP2 constrains the channel access and transmission of the OBSS-related stations (i.e., the related stations associated with AP2, such as STA2) during the predetermined time period by sending a channel resource protection start notification frame and / or a channel resource protection operation notification frame. The details are as follows:

[0419] If the sender identification information of the OBSS PPDU received by STA1 includes the identification information of AP2 and / or the identification information of STA2, and the sender identification of the OBSS PPDU received by AP1 includes the identification information of AP2 and / or the identification information of STA2, then AP2 adopts at least one of the following channel access rules:

[0420] 1) AP2 terminates its TXOP before the start time of the protected period (r-TWT service period);

[0421] 2) AP2 does not compete for the channel to initiate transmission during the protected period;

[0422] 3) AP2 can compete for the channel to obtain TXOP during the protected period but adopts an EDCA parameter set with a lower contention priority;

[0423] For STA2, since its sending of PPDU to AP2 does not interfere with the link transmission between AP1 and STA1, STA2 can be allowed to compete for the channel during the protected period to obtain TXOP to initiate transmission. At the same time, the length of the PPDU sent by AP2 to STA2 is limited to a given threshold range, for example, it is only used to send confirmation frames.

[0424] To sum up, in the scheme shown in the embodiment of the present application, when a station in the first BSS monitors that the transmission initiated by the target station in the second BSS affects or interferes with the frame exchange of the station in the first BSS, the first AP device in the first BSS can share the target resource information and / or the target station information to the second AP device based on the corresponding monitoring or reception situation information. After the second AP device receives the target resource information and / or the target station information, it can instruct the third STA device in the second BSS to constrain the transmission on the target channel and / or target time through the channel resource protection start notification frame, so as to reduce the impact or interference of the station in the second BSS on the station in the first BSS as much as possible, thereby reducing the transmission delay of the station in the first BSS.

[0425] Please refer to Figure 15, which shows a block diagram of an apparatus for transmission provided by an embodiment of the present application. The apparatus has the function of implementing the steps performed by the first STA device in the first BSS in the above-mentioned method for transmission, where the first STA device is a non-access point AP STA. As shown in Figure 15, the apparatus may include:

[0426] A monitoring module 1501 is configured to monitor or receive a data unit in a first BSS channel to obtain first monitoring or reception information; the first monitoring or reception information is used to indicate transmission information of a first target station in a second BSS monitored or received by the first STA device; the first target station is a station whose transmission initiates an impact or interference with a frame exchange of the first STA device in the first BSS;

[0427] The reporting module 1502 is configured to report the first monitoring or receiving status information to the first AP device in the first BSS.

[0428] In some embodiments, the first monitoring or receiving situation information is used by the first access point AP device in the first BSS to share target resource information and / or target site information with the second AP device in the second BSS; the target resource information and / or target site information is used by the second AP device to constrain the transmission of the site in the second BSS on the target channel and / or target time; the target channel and / or target time are the channels and / or times in the first BSS that require media access protection.

[0429] In some embodiments, the second BSS is an overlapping basic service set (OBSS) or a co-channel operating BSS of the first BSS.

[0430] In some embodiments, the first monitoring or receiving situation information includes site information of the first target site.

[0431] In some embodiments, the data unit comprises a physical layer protocol data unit (PPDU).

[0432] In some embodiments, the device further includes: a determination module for determining that the site information carried by the first PPDU includes information of the first target site when the BSS identification information contained in the monitored or received first PPDU is different from the BSS identification information of the first BSS.

[0433] In some embodiments, the BSS identification information includes at least one of a BSS ID and a BSS color.

[0434] In some embodiments, the reporting message frame for reporting the first monitoring or reception status information includes PPDU transmission information carried by the PPDU monitored or received by the first STA device; the PPDU transmission information includes at least one of the following transmission sub-information:

[0435] Transmission type, BSS color, BSSID, sender association identifier AID, sender partial AID, sender MAC address, receiver association identifier AID, receiver partial AID, receiver MAC address;

[0436] The transmission type includes uplink transmission, downlink transmission or point-to-point (P2P) transmission.

[0437] In some embodiments, the reporting message frame includes a PPDU transmission information element; the PPDU transmission information element includes: a PPDU transmission information control field, and a PPDU transmission information field;

[0438] The PPDU transmission control information field is used to indicate the information format of the PPDU transmission information field.

[0439] The PPDU transmission information field is used to carry the PPDU transmission information.

[0440] In some embodiments, the PPDU transmission control information field includes at least one of the following information:

[0441] PPDU type indication information, used to indicate whether the monitored or received PPDU comes from a BSS other than the first BSS;

[0442] The number of PPDU transmission information;

[0443] The bitmap of the PPDU transmission information is used to indicate the information type of the transmission sub-information included in the PPDU transmission information.

[0444] In some embodiments, each bit position in the bitmap of the PPDU transmission information corresponds to a type of transmission sub-information, and the bit value of each bit position in the bitmap of the PPDU transmission information is used to indicate whether the corresponding transmission sub-information exists in the PPDU transmission information field.

[0445] In some embodiments, the reporting message frame used to report the first monitoring or receiving situation information is a wireless measurement report frame.

[0446] In some embodiments, the reporting module 1502 is configured to report the first monitoring or receiving status information to the first AP device when a wireless measurement request frame is received and the measurement type corresponding to the wireless measurement request frame includes a specified measurement type.

[0447] In some embodiments, the specified measurement type comprises: a frame measurement type.

[0448] Please refer to Figure 16, which shows a block diagram of an apparatus for transmission provided by an embodiment of the present application. The apparatus has the function of implementing the steps performed by the first AP device in the first BSS in the above-mentioned method for transmission. As shown in Figure 16, the apparatus may include:

[0449] Information acquisition module 1601 is configured to acquire monitoring or reception information; the monitoring or reception information is configured to indicate transmission information of a target station in a second BSS monitored or received by a station in a first BSS in a channel of the first BSS; the target station is a station whose transmission affects or interferes with frame exchange of a station in the first BSS in the first BSS;

[0450] The sending module 1602 is used to share the target resource information and / or target site information with the second AP device in the second BSS based on the monitoring or receiving situation information; the target resource information and / or target site information is used by the second AP device to constrain the transmission of the site in the second BSS on the target channel and / or target time; the target channel and / or target time are the channels and / or times that require media access protection in the first BSS.

[0451] In some embodiments, the second BSS is an overlapping basic service set (OBSS) of the first BSS or a co-channel operating BSS.

[0452] In some embodiments, the monitoring or receiving situation information includes site information of the target site.

[0453] In some embodiments, the information acquisition module 1601 is used to:

[0454] Receive first monitoring or reception situation information reported by the first STA device in the first BSS; the first STA device is a non-APSTA; the first monitoring or reception situation information is used to indicate the transmission information of the first target site in the second BSS monitored or received by the first STA device; the first target site is a site that initiates transmission that affects or interferes with the frame exchange of the first STA device in the first BSS.

[0455] And / or, monitor or receive data units to obtain second monitoring or reception situation information; the second monitoring or reception situation information is used to indicate the transmission information of the second target site in the second BSS monitored or received by the first AP device; the second target site is a site whose initiated transmission affects or interferes with the frame exchange of the first AP device in the first BSS.

[0456] In some embodiments, the data unit comprises a physical layer protocol data unit (PPDU).

[0457] In some embodiments, the second monitoring or receiving status information includes PPDU transmission information carried by the PPDU monitored or received by the first AP device; the PPDU transmission information includes at least one of the following transmission sub-information:

[0458] Transmission type, BSS color, BSSID, sender association identifier AID, sender partial AID, sender MAC address, receiver association identifier AID, receiver partial AID, receiver MAC address; wherein the transmission type includes uplink transmission, downlink transmission or point-to-point P2P transmission.

[0459] In some embodiments, the reporting message frame for reporting the first monitoring or reception status information includes PPDU transmission information carried by the PPDU monitored or received by the first STA device; the PPDU transmission information includes at least one of the following transmission sub-information:

[0460] Transmission type, BSS color, BSSID, sender association identifier AID, sender partial AID, sender MAC address, receiver association identifier AID, receiver partial AID, receiver MAC address; wherein the transmission type includes uplink transmission, downlink transmission or point-to-point P2P transmission.

[0461] In some embodiments, the reporting message frame includes a PPDU transmission information element; the PPDU transmission information element includes: a PPDU transmission information control field, and a PPDU transmission information field;

[0462] The PPDU transmission control information field is used to indicate the information format of the PPDU transmission information field.

[0463] The PPDU transmission information field is used to carry the PPDU transmission information.

[0464] In some embodiments, the PPDU transmission control information field includes at least one of the following information:

[0465] PPDU type indication information, used to indicate whether the monitored or received PPDU comes from a BSS other than the first BSS;

[0466] The number of PPDU transmission information;

[0467] The bitmap of the PPDU transmission information is used to indicate the information type of the transmission sub-information included in the PPDU transmission information.

[0468] In some embodiments, each bit position in the bitmap of the PPDU transmission information corresponds to a type of transmission sub-information, and the bit value of each bit position in the bitmap of the PPDU transmission information is used to indicate whether the corresponding transmission sub-information exists in the PPDU transmission information field.

[0469] In some embodiments, the receiving first monitoring or reception status information reported by a first STA device in the first BSS includes:

[0470] Receive the first monitoring or receiving situation information reported by the first STA device through a wireless measurement report frame.

[0471] In some embodiments, the sending module is further configured to send a wireless measurement request frame to the first STA device, where the measurement type corresponding to the wireless measurement request frame includes a specified measurement type.

[0472] In some embodiments, the specified measurement type comprises: a frame measurement type.

[0473] In some embodiments, the target resource information includes the target channel information.

[0474] In some embodiments, the target channel is all or part of the channels used by stations in the first BSS that monitor or receive transmission information from the second BSS.

[0475] In some embodiments, the target channel is a working channel on a link corresponding to the r-TWT operation established in the first BSS.

[0476] In some embodiments, the target time is the time at which a station in the first BSS that monitors or receives transmission information from the second BSS competes for a channel and / or transmits.

[0477] In some embodiments, the target time information includes: information about a time period corresponding to a restricted target wake-up time r-TWT service period of a station in the first BSS that monitors or receives transmission information from the second BSS.

[0478] In some embodiments, the time information of the first channel resource includes: information of a time period that coincides with an r-TWT service period of a station in the first BSS that monitors or receives transmission information from the second BSS.

[0479] Please refer to Figure 17, which shows a block diagram of an apparatus for transmission provided by an embodiment of the present application. The apparatus has the function of implementing the steps performed by the second AP device in the second BSS in the above-mentioned method for transmission. As shown in Figure 17, the apparatus may include:

[0480] A receiving module 1701 is configured to receive target resource information and / or target site information shared by a first AP device in a first BSS; the target resource information and / or target site information is shared by the first AP device based on monitoring or reception information; the monitoring or reception information is used to indicate transmission information of a target site in a second BSS monitored or received by a site in the first BSS; the target site is a site whose transmission initiates an impact on or interferes with frame exchange of a site in the first BSS in the first BSS;

[0481] Constraint module 1702 is used to constrain the transmission of sites in the second BSS on the target channel and / or target time based on the information of the target resources and / or the information of the target site; the target channel and / or target time are the channels and / or times that require media access protection in the first BSS.

[0482] In some embodiments, the constraint module 1702 is configured to constrain transmission of all stations in the second BSS on the target channel and / or the target time based on the target resource information and / or target station information.

[0483] In some embodiments, the constraint module 1702 is used to:

[0484] Control all stations in the second BSS to terminate transmission opportunities before the starting time point corresponding to the target time; or,

[0485] controlling all stations in the second BSS to be in a silent state during a time period corresponding to the target time; or,

[0486] allowing all stations in the second BSS to compete for TXOP using the first EDCA parameter set during a time period corresponding to the target time; or,

[0487] Control all stations in the second BSS to terminate transmission opportunities before a starting time point corresponding to the target time, and control all stations in the second BSS to be in a silent state during a time period corresponding to the target time; or,

[0488] Control all stations in the second BSS to terminate transmission opportunities before a starting time point corresponding to the target time, and allow all stations in the second BSS to compete for TXOP using the first EDCA parameter set within a time period corresponding to the target time;

[0489] The priority of the first EDCA parameter set is lower than the priority corresponding to the second EDCA parameter set used by the station in the first BSS that monitors or receives transmission information from the second BSS, or lower than the priority corresponding to the general EDCA parameter set.

[0490] In some embodiments, the constraint module 1702 is used to:

[0491] controlling all stations in the second BSS to terminate transmission opportunities on the target channel before a starting time point corresponding to the target time; or,

[0492] controlling all stations in the second BSS to be in a silent state on the target channel during a time period corresponding to the target time; or,

[0493] allowing all stations in the second BSS to use the first EDCA parameter set during a time period corresponding to the target time to compete for a TXOP on the target channel; or,

[0494] Control all stations in the second BSS to terminate transmission opportunities on the target channel before a starting time point corresponding to the target time, and control all stations in the second BSS to be in a silent state on the target channel during a time period corresponding to the target time; or

[0495] Control all stations in the second BSS to terminate transmission opportunities on the target channel before a start time point corresponding to the target time, and allow all stations in the second BSS to use the first EDCA parameter set to compete for TXOP on the target channel during a time period corresponding to the target time;

[0496] The priority of the first EDCA parameter set is lower than the priority corresponding to the second EDCA parameter set used by the station in the first BSS that monitors or receives transmission information from the second BSS, or lower than the priority corresponding to the general EDCA parameter set.

[0497] In some embodiments, the constraint module 1702 is configured to constrain the transmission of the target site on the target channel and / or the target time based on the information of the target resource and / or the information of the target site.

[0498] In some embodiments, the constraint module 1702 is used to:

[0499] controlling the target station to terminate the transmission opportunity before the starting time point corresponding to the target time; or,

[0500] controlling the target site to be in a silent state during a time period corresponding to the target time; or,

[0501] allowing the target station to use the first EDCA parameter set to compete for TXOP during the time period corresponding to the target time; or,

[0502] Controlling the target station to terminate the transmission opportunity before the starting time point corresponding to the target time, and controlling the target station to be in a silent state during the time period corresponding to the target time; or,

[0503] controlling the target station to terminate a transmission opportunity before a start time point corresponding to the target time, and allowing the target station to compete for a TXOP using a first EDCA parameter set within a time period corresponding to the target time;

[0504] The priority of the first EDCA parameter set is lower than the priority corresponding to the second EDCA parameter set used by the station in the first BSS that monitors or receives transmission information from the second BSS, or lower than the priority corresponding to the general EDCA parameter set.

[0505] In some embodiments, the constraint module 1702 is used to:

[0506] controlling the target station to terminate the transmission opportunity on the target channel before the starting time point corresponding to the target time; or,

[0507] controlling the target station to be in a silent state on the target channel during a time period corresponding to the target time; or,

[0508] allowing the target station to use the first EDCA parameter to compete for TXOP on the target channel during a time period corresponding to the target time; or,

[0509] Controlling the target station to terminate the transmission opportunity on the target channel before the starting time point corresponding to the target time, and controlling the target station to be in a silent state on the target channel during the time period corresponding to the target time; or

[0510] Controlling the target station to terminate a transmission opportunity on the target channel before a start time point corresponding to the target time, and allowing the target station to use a first EDCA parameter set to compete for a TXOP on the target channel within a time period corresponding to the target time;

[0511] The priority of the first EDCA parameter set is lower than the priority corresponding to the second EDCA parameter set used by the station in the first BSS that monitors or receives transmission information from the second BSS, or lower than the priority corresponding to the general EDCA parameter set.

[0512] In some embodiments, the constraint module 1702 is configured to constrain transmission of the target site on the target channel and / or the target time based on the target resource information and / or target site information and the transmission role of the target site;

[0513] The transmission role is used to indicate that the target station is a transmission sender or a transmission receiver in the transmission information from the second BSS monitored or received by the station in the first BSS.

[0514] In some embodiments, when the target site is the transmission sender, the constraint module 1702 is configured to:

[0515] controlling the target station to terminate the transmission opportunity before the starting time point corresponding to the target time; or,

[0516] controlling the target station not to initiate a contention TXOP within a time period corresponding to the target time; or,

[0517] allowing the target station to use the first EDCA parameter set to compete for TXOP during the time period corresponding to the target time; or,

[0518] Controlling the target station to terminate the transmission opportunity before the starting time point corresponding to the target time, and controlling the target station not to initiate a contention TXOP within the time period corresponding to the target time; or,

[0519] controlling the target station to terminate a transmission opportunity before a start time point corresponding to the target time, and allowing the target station to compete for a TXOP using a first EDCA parameter set within a time period corresponding to the target time;

[0520] The priority of the first EDCA parameter set is lower than the priority corresponding to the second EDCA parameter set used by the station in the first BSS that monitors or receives transmission information from the second BSS, or lower than the priority corresponding to the general EDCA parameter set.

[0521] In some embodiments, when the target site is the transmission sender, the constraint module 1702 is configured to:

[0522] controlling the target station to terminate the transmission opportunity on the target channel before the starting time point corresponding to the target time; or,

[0523] controlling the target station not to initiate a contention TXOP on the target channel within a time period corresponding to the target time; or

[0524] allowing the target station to use the first EDCA parameter set within a time period corresponding to the target time to compete for TXOP on the target channel; or,

[0525] Controlling the target station to terminate the transmission opportunity on the target channel before the starting time point corresponding to the target time, and controlling the target station not to initiate a contention TXOP on the target channel within the time period corresponding to the target time; or

[0526] Controlling the target station to terminate a transmission opportunity on the target channel before a start time point corresponding to the target time, and allowing the target station to use a first EDCA parameter set to compete for a TXOP on the target channel within a time period corresponding to the target time;

[0527] The priority of the first EDCA parameter set is lower than the priority corresponding to the second EDCA parameter set used by the station in the first BSS that monitors or receives transmission information from the second BSS, or lower than the priority corresponding to the general EDCA parameter set.

[0528] In some embodiments, when the target site is the transmission recipient, the constraint module 1702 is used to allow the target site to initiate transmission on the target channel and / or target time and send a specified type of frame to the second STA device; and / or prohibit the target site from sending other frames other than the specified type of frame to the second STA device on the target channel and / or target time; the second STA device is a site in the first BSS that monitors or receives transmission information from the second BSS and sends it to the target site; wherein the length of the response frame of the specified type of frame is less than or equal to the frame length threshold.

[0529] In some embodiments, the universal EDCA parameter set is a MU EDCA parameter set.

[0530] In some embodiments, the target resource information includes the target channel information.

[0531] In some embodiments, the target channel is all or part of the channels used by stations in the first BSS that monitor or receive transmission information from the second BSS.

[0532] In some embodiments, the target channel is a working channel on a link corresponding to the r-TWT operation established in the first BSS.

[0533] In some embodiments, the target time is the time at which a station in the first BSS that monitors or receives transmission information from the second BSS competes for a channel and / or transmits.

[0534] In some embodiments, the target time information includes: information about a time period corresponding to a restricted target wake-up time r-TWT service period of a station in the first BSS that monitors or receives transmission information from the second BSS.

[0535] In some embodiments, the target time information includes: information about a time period that coincides with an r-TWT service period of a station in the first BSS that monitors or receives transmission information from the second BSS.

[0536] In some embodiments, the constraint module 1702 is used to send a channel resource protection enable notification frame to the third STA device in the second BSS based on the information of the target resource and / or the information of the target site; the channel resource protection enable notification frame is used to instruct the third STA device to constrain transmission on the target channel and / or the target time.

[0537] In some embodiments, the channel resource protection on notification frame includes a protected period element;

[0538] The protected period element includes a protected period control field, a protected period count field, a protected period field, a protected period duration field, and a protected period offset field;

[0539] The protected period control field is used to indicate a method for constraining transmission corresponding to the time information;

[0540] The protected period count field is used to indicate the number of TBTTs in the beacon interval where the start time of the next time period is located;

[0541] The protected period field is used to indicate the number of beacon intervals between the start times of the time period;

[0542] The protected period duration field is used to indicate the duration of the time period;

[0543] The protected period offset field is used to indicate the offset value between the starting time point of the time period and the TBTT defined by the protected period count field.

[0544] In some embodiments, the protected period control field includes a resource protection mode indication bitmap; each bit position in the resource protection mode indication bitmap corresponds to a resource protection mode, and the bit value of each bit position in the resource protection mode indication bitmap is used to indicate whether the corresponding resource protection mode is enabled.

[0545] In some embodiments, the apparatus further includes: a sending module for sending a channel resource protection operation notification frame to the third STA device; the channel resource protection operation notification frame is used to instruct the third STA device to end or restart the constraints on transmission on the target channel and / or the target time.

[0546] In some embodiments, the channel resource protection operation notification frame includes an indication flag;

[0547] The indication flag is used to indicate closing or restarting the restriction on transmission on the target channel and / or the target time.

[0548] In some embodiments, the receiving module 1701 is used to receive the target resource information and / or target site information directly sent by the first AP device; or, to receive the target resource information and / or target site information indirectly forwarded by the first AP device through non-AP sites in the first BSS and the second BSS.

[0549] Please refer to Figure 18, which shows a block diagram of an apparatus for transmission provided by one embodiment of the present application. The apparatus has the function of implementing the steps performed by a third STA device in the second BSS in the above-mentioned method for transmission, where the third STA device is a non-access point AP STA. As shown in Figure 18, the apparatus may include:

[0550] A receiving module 1801 is configured to receive a channel resource protection enable notification frame sent by a second AP device in a second BSS; the channel resource protection enable notification frame is sent by the second AP device after receiving target resource information and / or target site information sent by a first AP device in a first BSS; the target resource information and / or target site information is shared by the first AP device based on monitoring or reception information; the monitoring or reception information is used to indicate transmission information of a target site in the second BSS monitored or received by a site in the first BSS; the target site is a site whose transmission initiates an impact on or interferes with frame exchange of a site in the first BSS in the first BSS;

[0551] Constraint module 1802 is used to constrain the transmission of the third STA device on the target channel and / or target time according to the channel resource protection activation notification frame; the target channel and / or target time are the channels and / or times that require media access protection in the first BSS.

[0552] In some embodiments, the constraint module 1802 is used to:

[0553] terminating the TXOP before the starting time point corresponding to the target time; or,

[0554] controlling all stations in the second BSS to be in a silent state during a time period corresponding to the target time; or,

[0555] Not initiating a contention TXOP within the time period corresponding to the target time; or,

[0556] using a first EDCA parameter set to compete for the TXOP during a time period corresponding to the target time; a priority of the first EDCA parameter set is lower than a priority corresponding to a second EDCA parameter set used by a station in the BSS that monitors or receives transmission information from the second BSS, or lower than a priority corresponding to a common EDCA parameter set; or

[0557] terminating the TXOP before the starting time point corresponding to the target time and being in a silent state during the time period corresponding to the target time; or

[0558] terminating the TXOP before the starting time point corresponding to the target time, and not initiating a contention TXOP within the time period corresponding to the target time; or,

[0559] terminating the TXOP before the starting time point corresponding to the target time, and allowing the first EDCA parameter set to be used to compete for the TXOP during the time period corresponding to the target time; or

[0560] Allowing transmission to be initiated on the target channel and / or target time and sending a specified type of frame to the second STA device; and / or prohibiting sending frames other than the specified type of frame to the second STA device; the second STA device is a station in the first BSS that monitors or receives transmission information from the second BSS and sends it to the third STA device; the length of the response frame of the specified type of frame is less than or equal to the frame length threshold.

[0561] In some embodiments, the constraint module 1802 is used to:

[0562] Before the starting time point corresponding to the target time, terminate the TXOP on the target channel; or,

[0563] controlling all stations in the second BSS to be in a silent state on the target channel during a time period corresponding to the target time; or,

[0564] Initiating no contention TXOP on the target channel during the time period corresponding to the target time; or

[0565] using a first EDCA parameter set within a time period corresponding to the target time to compete for a TXOP on the target channel; a priority of the first EDCA parameter set is lower than a priority corresponding to a second EDCA parameter set used by a station in the first BSS that monitors or receives transmission information from the second BSS, or lower than a priority corresponding to a common EDCA parameter set; or

[0566] Before the starting time point corresponding to the target time, terminate the TXOP on the target channel and be in a silent state on the target channel during the time period corresponding to the target time; or

[0567] Before the starting time point corresponding to the target time, terminating the TXOP on the target channel, and not initiating a contention TXOP on the target channel during the time period corresponding to the target time; or

[0568] Before the starting time point corresponding to the target time, terminate the TXOP on the target channel and allow the use of the first EDCA parameter set to compete for the TXOP on the target channel during the time period corresponding to the target time; or

[0569] Allowing transmission to be initiated on the target channel and / or target time and sending a specified type of frame to the second STA device; and / or prohibiting sending frames other than the specified type of frame to the second STA device on the target channel and / or target time; the second STA device is a station in the first BSS that monitors or receives transmission information from the second BSS and sends it to the third STA device; the length of the response frame of the specified type of frame is less than or equal to the frame length threshold.

[0570] In some embodiments, the universal EDCA parameter set is a MU EDCA parameter set.

[0571] In some embodiments, the target resource information includes the target channel information.

[0572] In some embodiments, the target channel is all or part of the channels used by stations in the first BSS that monitor or receive transmission information from the second BSS.

[0573] In some embodiments, the target channel is a working channel on a link corresponding to the r-TWT operation established in the first BSS.

[0574] In some embodiments, the target time is the time at which a station in the first BSS that monitors or receives transmission information from the second BSS competes for a channel and / or transmits.

[0575] In some embodiments, the target time information includes: information about a time period corresponding to a restricted target wake-up time r-TWT service period of a station in the first BSS that monitors or receives transmission information from the second BSS.

[0576] In some embodiments, the target time information includes: information about a time period that coincides with an r-TWT service period of a station in the first BSS that monitors or receives transmission information from the second BSS.

[0577] In some embodiments, the channel resource protection on notification frame includes a protected period element;

[0578] The protected period element includes a protected period control field, a protected period count field, a protected period field, a protected period duration field, and a protected period offset field;

[0579] The protected period control field is used to indicate a method for constraining transmission corresponding to the time information;

[0580] The protected period count field is used to indicate the number of TBTTs in the beacon interval where the start time of the next time period is located;

[0581] The protected period field is used to indicate the number of beacon intervals between the start times of the time period;

[0582] The protected period duration field is used to indicate the duration of the time period;

[0583] The protected period offset field is used to indicate the offset value between the starting time point of the time period and the TBTT defined by the protected period count field.

[0584] In some embodiments, the protected period control field includes a resource protection mode indication bitmap;

[0585] Each bit position in the resource protection mode indication bitmap corresponds to a resource protection mode, and the bit value of each bit position in the resource protection mode indication bitmap is used to indicate whether the corresponding resource protection mode is enabled.

[0586] In some embodiments, the receiving module 1801 is also used to receive a channel resource protection operation notification frame sent by the second AP device; the channel resource protection operation notification frame is used to instruct the third STA device to end or restart the transmission constraints on the target channel and / or the target time.

[0587] In some embodiments, the channel resource protection operation notification frame includes an indication flag;

[0588] The indication flag is used to indicate closing or restarting the restriction on transmission on the target channel and / or the target time.

[0589] It should be noted that the device provided in the above embodiment only uses the division of the above-mentioned functional modules as an example to implement its functions. In actual applications, the above-mentioned functions can be assigned to different functional modules according to actual needs, that is, the content structure of the device can be divided into different functional modules to complete all or part of the functions described above.

[0590] Regarding the apparatus in the above embodiment, the specific manner in which each module performs operations has been described in detail in the embodiment of the method, and will not be elaborated here.

[0591] Please refer to FIG19 , which shows a schematic diagram of the structure of a computer device 1900 provided in one embodiment of the present application. The computer device 1900 may include: a processor 1901 , a receiver 1902 , a transmitter 1903 , a memory 1904 , and a bus 1905 .

[0592] The processor 1901 includes one or more processing cores. The processor 1901 executes various functional applications and information processing by running software programs and modules.

[0593] The receiver 1902 and the transmitter 1903 may be implemented as a communication component, which may be a communication chip, which may also be called a transceiver.

[0594] The memory 1904 is connected to the processor 1901 via a bus 1905 .

[0595] The memory 1904 may be used to store a computer program, and the processor 1901 may be used to execute the computer program to implement the various steps performed by the STAS device or the AP device in the above method embodiment.

[0596] In addition, memory 1904 can be implemented by any type of volatile or non-volatile storage device or a combination thereof, including but not limited to: magnetic disk or optical disk, electrically erasable programmable read-only memory, erasable programmable read-only memory, static random access memory, read-only memory, magnetic memory, flash memory, and programmable read-only memory.

[0597] In an exemplary embodiment, the computer device includes a processor, a memory, and a transceiver (the transceiver may include a receiver and a transmitter, the receiver is used to receive information, and the transmitter is used to send information);

[0598] In one possible implementation, when the computer device is a STA device, and the STA device can be the first STA device in the first BSS, the transceiver is used to monitor or receive data units in the first BSS channel to obtain first monitoring or reception situation information; the first monitoring or reception situation information is used to indicate the transmission information of the first target site in the second BSS monitored or received by the first STA device; the first target site is a site that initiates transmission that affects or interferes with the frame exchange of the first STA device in the first BSS; and the first monitoring or reception situation information is reported to the first AP device in the first BSS.

[0599] In one possible implementation, when the computer device is a STA device and the STA device is a third STA device in the second BSS, the transceiver is used to receive a channel resource protection activation notification frame sent by the second AP device in the second BSS; the channel resource protection activation notification frame is sent by the second AP device after receiving the target resource information and / or target site information sent by the first AP device in the first BSS; the target resource information and / or target site information are shared by the first AP device based on the monitoring or reception situation information; the monitoring or reception situation information is used to indicate the transmission information of the target site in the second BSS monitored or received by the station in the first BSS; the target site is a site whose initiated transmission affects or interferes with the frame exchange of the station in the first BSS in the first BSS; the processor is used to constrain the transmission of the third STA device on the target channel and / or target time based on the channel resource protection activation notification frame; the target channel and / or target time are the channels and / or time in the first BSS that require media access protection.

[0600] Among them, when the computer device is a STA device, the processor can be used to execute all or part of the steps performed by the first STA device or the third STA device in the embodiments shown in Figures 2, 5 or 7 through the transceiver, which will not be repeated here.

[0601] In one possible implementation, when the computer device is an AP device and the AP device is an AP device in a first BSS, the transceiver is used to obtain monitoring or reception situation information; the monitoring or reception situation information is used to indicate the transmission information of the target site in the second BSS monitored or received by the station in the first BSS in the first BSS channel; the target site is a site whose initiated transmission affects or interferes with the frame exchange of the station in the first BSS in the first BSS; based on the monitoring or reception situation information, the target resource information and / or the target site information are shared with the second AP device in the second BSS; the target resource information and / or the target site information are used by the second AP device to constrain the transmission of the station in the second BSS on the target channel and / or target time; the target channel and / or target time are the channels and / or times in the first BSS that require media access protection.

[0602] In one possible implementation, when the computer device is an AP device and the AP device is an AP device in a second BSS, the transceiver is used to receive target resource information and / or target site information shared by the first AP device in the first BSS; the target resource information and / or target site information are shared by the first AP device based on monitoring or receiving situation information; the monitoring or receiving situation information is used to indicate the transmission information of the target site in the second BSS monitored or received by the station in the first BSS; the target site is a site that initiates a transmission that affects or interferes with the frame exchange of the station in the first BSS in the first BSS; the processor is used to constrain the transmission of the station in the second BSS on the target channel and / or target time based on the target resource information and / or target site information; the target channel and / or target time are the channels and / or times in the first BSS that require media access protection.

[0603] Among them, when the computer device is an AP device, the processor and transceiver can be used to execute all or part of the steps performed by the first AP device or the second AP device in the embodiments shown in Figures 3, 4 or 7 above, which will not be repeated here.

[0604] An embodiment of the present application further provides a computer-readable storage medium, wherein the storage medium stores a computer program, and the computer program is loaded and executed by a processor of a computer device, so that the computer device performs each step performed by the first STA device, the first AP device, the second AP device, or the third STA device in the method shown in Figures 2-5 or 7 above.

[0605] The present application also provides a computer program product, comprising computer instructions stored in a computer-readable storage medium. A processor of a computer device reads the computer instructions from the computer-readable storage medium and executes the computer instructions, causing the computer device to perform each step performed by the first STA device, the first AP device, the second AP device, or the third STA device in the method shown in Figures 2-5 or 7 above.

[0606] The present application also provides a chip, which includes: a processor for calling and running a computer program from a memory, so that a computer device installed with the chip executes the various steps performed by the first STA device, the first AP device, the second AP device, or the third STA device in the method shown in Figures 2-5 or 7 above.

[0607] The present application also provides a computer program, which is executed by a processor of a computer device, so that the computer device performs the steps performed by the first STA device, the first AP device, the second AP device, or the third STA device in the method shown in Figures 2-5 or 7 above.

[0608] Those skilled in the art will appreciate that in one or more of the above examples, the functions described in the embodiments of the present application can be implemented using hardware, software, firmware, or any combination thereof. When implemented using software, these functions can be stored in a computer-readable medium or transmitted as one or more instructions or codes on a computer-readable medium. Computer-readable media include computer storage media and communication media, wherein communication media include any media that facilitates the transmission of computer programs from one place to another. The storage medium can be any available medium that can be accessed by a general-purpose or special-purpose computer.

[0609] The above description is merely an exemplary embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application shall be included in the scope of protection of the present application.

Claims

1. A method for transmission, characterized in that The method is performed by a first station STA device in a first basic service set BSS, where the first STA device is a non-access point station non-AP STA; the method includes: Monitoring or receiving a data unit in a first BSS channel to obtain first monitoring or reception information; the first monitoring or reception information is used to indicate transmission information of a first target station in a second BSS monitored or received by the first STA device; the first target station is a station whose transmission affects or interferes with frame exchange of the first STA device in the first BSS; Report the first monitoring or receiving situation information to a first AP device in the first BSS.

2. The method according to claim 1, characterized in that The first monitoring or receiving situation information is used by a first access point AP device in the first BSS to share target resource information and / or target site information with a second AP device in the second BSS; the target resource information and / or target site information is used by the second AP device to constrain transmission of sites in the second BSS on a target channel and / or target time; The target channel and / or target time is a channel and / or time requiring medium access protection in the first BSS.

3. The method according to claim 1 or 2, characterized in that The second BSS is an overlapping basic service set (OBSS) of the first BSS or a BSS operating on the same channel.

4. The method according to any one of claims 1 to 3, characterized in that The first monitoring or receiving situation information includes site information of the first target site.

5. The method according to any one of claims 1 to 4, characterized in that: The data unit includes a physical layer protocol data unit PPDU.

6. The method according to claim 5, characterized in that The method further comprises: When the BSS identification information included in the monitored or received first PPDU is different from the BSS identification information of the first BSS, it is determined that the site information carried by the first PPDU includes the information of the first target site.

7. The method according to claim 6, characterized in that The BSS identification information includes at least one of a BSS ID and a BSS color.

8. The method according to any one of claims 5 to 7, characterized in that: The reporting message frame for reporting the first monitoring or reception status information includes PPDU transmission information carried by the PPDU monitored or received by the first STA device; the PPDU transmission information includes at least one of the following transmission sub-information: Transmission type, BSS color, BSSID, sender association identifier AID, sender partial AID, sender MAC address, receiver association identifier AID, receiver partial AID, receiver MAC address; The transmission type includes uplink transmission, downlink transmission or point-to-point (P2P) transmission.

9. The method according to claim 8, characterized in that The reporting message frame includes a PPDU transmission information element; The PPDU transmission information element includes: a PPDU transmission information control field and a PPDU transmission information field; The PPDU transmission control information field is used to indicate the information format of the PPDU transmission information field; The PPDU transmission information field is used to carry the PPDU transmission information.

10. The method according to claim 9, characterized in that The PPDU transmission control information field includes at least one of the following information: PPDU type indication information, used to indicate whether the monitored or received PPDU comes from a BSS other than the first BSS; The number of PPDU transmission information; The bitmap of the PPDU transmission information is used to indicate the information type of the transmission sub-information included in the PPDU transmission information.

11. The method according to claim 10, characterized in that Each bit position in the bitmap of the PPDU transmission information corresponds to a type of transmission sub-information, and the bit value of each bit position in the bitmap of the PPDU transmission information is used to indicate whether the corresponding transmission sub-information exists in the PPDU transmission information field.

12. The method according to any one of claims 1 to 11, characterized in that: The reporting message frame used to report the first monitoring or receiving situation information is a wireless measurement report frame.

13. The method according to any one of claims 1 to 12, characterized in that: The reporting the first monitoring or receiving situation information to the first AP device in the first BSS includes: When a wireless measurement request frame is received and the measurement type corresponding to the wireless measurement request frame includes a specified measurement type, the first monitoring or receiving condition information is reported to the first AP device.

14. The method according to claim 13, characterized in that The specified measurement type includes: a frame measurement type.

15. A method for transmitting, characterized in that The method is performed by a first AP device in a first BSS; the method includes: Obtaining monitoring or reception information; the monitoring or reception information is used to indicate transmission information of a target station in the second BSS monitored or received by a station in the first BSS in a first BSS channel; the target station is a station whose initiated transmission affects or interferes with frame exchange of the station in the first BSS in the first BSS; Based on the monitoring or receiving situation information, the target resource information and / or target site information is shared with the second AP device in the second BSS; the target resource information and / or target site information is used by the second AP device to constrain the transmission of the site in the second BSS on the target channel and / or target time; the target channel and / or target time are the channels and / or times that require media access protection in the first BSS.

16. The method according to claim 15, characterized in that The second BSS is an overlapping basic service set (OBSS) of the first BSS or a BSS operating on the same channel.

17. The method according to claim 15 or 16, characterized in that The monitoring or receiving situation information includes site information of the target site.

18. The method according to any one of claims 15 to 17, characterized in that: The obtaining of monitoring or receiving situation information includes: Receiving first monitoring or reception situation information reported by a first STA device in the first BSS; the first STA device is a non-APSTA; the first monitoring or reception situation information is used to indicate transmission information of a first target station in the second BSS monitored or received by the first STA device; the first target station is a station whose initiated transmission affects or interferes with the frame exchange of the first STA device in the first BSS; And / or, monitor or receive data units to obtain second monitoring or reception situation information; the second monitoring or reception situation information is used to indicate the transmission information of the second target site in the second BSS monitored or received by the first AP device; the second target site is a site whose initiated transmission affects or interferes with the frame exchange of the first AP device in the first BSS.

19. The method according to claim 18, characterized in that The data unit includes a physical layer protocol data unit PPDU.

20. The method according to claim 19, characterized in that The second monitoring or receiving status information includes PPDU transmission information carried by the PPDU monitored or received by the first AP device; the PPDU transmission information includes at least one of the following transmission sub-information: Transmission type, BSS color, BSSID, sender association identifier AID, sender partial AID, sender MAC address, receiver association identifier AID, receiver partial AID, receiver MAC address; The transmission type includes uplink transmission, downlink transmission or point-to-point (P2P) transmission.

21. The method according to claim 19, wherein The reporting message frame for reporting the first monitoring or reception status information includes PPDU transmission information carried by the PPDU monitored or received by the first STA device; the PPDU transmission information includes at least one of the following transmission sub-information: Transmission type, BSS color, BSSID, sender association identifier AID, sender partial AID, sender MAC address, receiver association identifier AID, receiver partial AID, receiver MAC address; The transmission type includes uplink transmission, downlink transmission or point-to-point (P2P) transmission.

22. The method according to claim 21, characterized in that The reporting message frame includes a PPDU transmission information element; The PPDU transmission information element includes: a PPDU transmission information control field and a PPDU transmission information field; The PPDU transmission control information field is used to indicate the information format of the PPDU transmission information field; The PPDU transmission information field is used to carry the PPDU transmission information.

23. The method according to claim 22, characterized in that The PPDU transmission control information field includes at least one of the following information: PPDU type indication information, used to indicate whether the monitored or received PPDU comes from a BSS other than the first BSS; The number of PPDU transmission information; The bitmap of the PPDU transmission information is used to indicate the information type of the transmission sub-information included in the PPDU transmission information.

24. The method according to claim 23, wherein Each bit position in the bitmap of the PPDU transmission information corresponds to a type of transmission sub-information, and the bit value of each bit position in the bitmap of the PPDU transmission information is used to indicate whether the corresponding transmission sub-information exists in the PPDU transmission information.

25. The method according to any one of claims 18 to 24, characterized in that The receiving first monitoring or reception situation information reported by the first STA device in the first BSS includes: Receive the first monitoring or receiving situation information reported by the first STA device through a wireless measurement report frame.

26. The method according to claim 25, characterized in that The method further comprises: A wireless measurement request frame is sent to the first STA device, where the measurement type corresponding to the wireless measurement request frame includes a specified measurement type.

27. The method according to claim 26, characterized in that The specified measurement type includes: a frame measurement type.

28. The method according to any one of claims 15 to 27, characterized in that The target resource information includes the target channel information.

29. The method according to claim 28, characterized in that The target channel is all or part of the channels used by the stations in the first BSS that monitor or receive transmission information from the second BSS.

30. The method according to claim 29, wherein The target channel is a working channel on the link corresponding to the r-TWT operation established in the first BSS.

31. The method according to any one of claims 15 to 27, characterized in that The target time is the time when a station in the first BSS that monitors or receives transmission information from the second BSS performs channel competition and / or transmission.

32. The method according to claim 31, characterized in that The target time information includes: Information on a time period corresponding to a restricted target wake-up time r-TWT service period of stations in the first BSS that monitor or receive transmission information from the second BSS.

33. The method according to claim 32, characterized in that The time information of the first channel resource includes: Information about a time period that coincides with the r-TWT service period of a station in the first BSS that monitors or receives transmission information from the second BSS.

34. A method for transmission, characterized in that The method is performed by a second AP device in a second BSS, and the method includes: receiving target resource information and / or target site information shared by a first AP device in a first BSS; the target resource information and / or target site information is shared by the first AP device based on monitoring or reception information; the monitoring or reception information is used to indicate transmission information of a target site in the second BSS monitored or received by a site in the first BSS; the target site is a site whose transmission initiates an impact on or interferes with frame exchange of a site in the first BSS; Based on the information of the target resource and / or the information of the target site, the transmission of the sites in the second BSS on the target channel and / or target time is constrained; the target channel and / or target time are the channels and / or times that require media access protection in the first BSS.

35. The method according to claim 34, wherein The constraining transmission of a station in the second BSS on a target channel and / or a target time according to the target resource information and / or the target station information includes: According to the target resource information and / or target site information, transmission of all sites in the second BSS on the target channel and / or the target time is restricted.

36. The method according to claim 35, characterized in that The constraining transmission of all stations in the second BSS at the target time includes: Control all stations in the second BSS to terminate transmission opportunities before the starting time point corresponding to the target time; or, controlling all stations in the second BSS to be in a silent state during a time period corresponding to the target time; or, allowing all stations in the second BSS to compete for TXOP using the first EDCA parameter set during a time period corresponding to the target time; or, Control all stations in the second BSS to terminate transmission opportunities before a starting time point corresponding to the target time, and control all stations in the second BSS to be in a silent state during a time period corresponding to the target time; or, Control all stations in the second BSS to terminate transmission opportunities before a starting time point corresponding to the target time, and allow all stations in the second BSS to compete for TXOP using the first EDCA parameter set within a time period corresponding to the target time; The priority of the first EDCA parameter set is lower than the priority corresponding to the second EDCA parameter set used by the station in the first BSS that monitors or receives transmission information from the second BSS, or lower than the priority corresponding to the general EDCA parameter set.

37. The method according to claim 35, characterized in that The constraining transmission of stations in the second BSS on the target channel and at the target time includes: controlling all stations in the second BSS to terminate transmission opportunities on the target channel before a starting time point corresponding to the target time; or, controlling all stations in the second BSS to be in a silent state on the target channel during a time period corresponding to the target time; or, allowing all stations in the second BSS to use the first EDCA parameter set during a time period corresponding to the target time to compete for a TXOP on the target channel; or, Control all stations in the second BSS to terminate transmission opportunities on the target channel before a starting time point corresponding to the target time, and control all stations in the second BSS to be in a silent state on the target channel during a time period corresponding to the target time; or Control all stations in the second BSS to terminate transmission opportunities on the target channel before a start time point corresponding to the target time, and allow all stations in the second BSS to use the first EDCA parameter set to compete for TXOP on the target channel during a time period corresponding to the target time; The priority of the first EDCA parameter set is lower than the priority corresponding to the second EDCA parameter set used by the station in the first BSS that monitors or receives transmission information from the second BSS, or lower than the priority corresponding to the general EDCA parameter set.

38. The method according to claim 34, wherein The constraining transmission of a station in the second BSS on a target channel and / or a target time according to the target resource information and / or the target station information includes: According to the information of the target resource and / or the information of the target site, the transmission of the target site on the target channel and / or the target time is constrained.

39. The method according to claim 38, characterized in that The constraining the transmission of the target station at the target time includes: controlling the target station to terminate the transmission opportunity before the starting time point corresponding to the target time; or, controlling the target site to be in a silent state during a time period corresponding to the target time; or, allowing the target station to use the first EDCA parameter set to compete for TXOP during the time period corresponding to the target time; or, Controlling the target station to terminate the transmission opportunity before the starting time point corresponding to the target time, and controlling the target station to be in a silent state during the time period corresponding to the target time; or, controlling the target station to terminate a transmission opportunity before a start time point corresponding to the target time, and allowing the target station to compete for a TXOP using a first EDCA parameter set within a time period corresponding to the target time; The priority of the first EDCA parameter set is lower than the priority corresponding to the second EDCA parameter set used by the station in the first BSS that monitors or receives transmission information from the second BSS, or lower than the priority corresponding to the general EDCA parameter set.

40. The method according to claim 38, wherein The constraining transmission of the target station on the target channel and at the target time includes: controlling the target station to terminate the transmission opportunity on the target channel before the starting time point corresponding to the target time; or, controlling the target station to be in a silent state on the target channel during a time period corresponding to the target time; or, allowing the target station to use the first EDCA parameter to compete for TXOP on the target channel during a time period corresponding to the target time; or, Controlling the target station to terminate the transmission opportunity on the target channel before the starting time point corresponding to the target time, and controlling the target station to be in a silent state on the target channel during the time period corresponding to the target time; or Controlling the target station to terminate a transmission opportunity on the target channel before a start time point corresponding to the target time, and allowing the target station to use a first EDCA parameter set to compete for a TXOP on the target channel within a time period corresponding to the target time; The priority of the first EDCA parameter set is lower than the priority corresponding to the second EDCA parameter set used by the station in the first BSS that monitors or receives transmission information from the second BSS, or lower than the priority corresponding to the general EDCA parameter set.

41. The method according to claim 38, wherein The constraining transmission of the target site on the target channel and / or target time according to the target resource information and / or target site information includes: According to the information of the target resource and / or the information of the target site, and based on the transmission role of the target site, constraining the transmission of the target site on the target channel and / or the target time; The transmission role is used to indicate that the target station is a transmission sender or a transmission receiver in the transmission information from the second BSS monitored or received by the station in the first BSS.

42. The method according to claim 41, wherein In a case where the target station is the transmission sender, constraining the transmission of the target station at the target time includes: controlling the target station to terminate the transmission opportunity before the starting time point corresponding to the target time; or, controlling the target station not to initiate a contention TXOP within a time period corresponding to the target time; or, allowing the target station to use the first EDCA parameter set to compete for TXOP during the time period corresponding to the target time; or, Controlling the target station to terminate the transmission opportunity before the starting time point corresponding to the target time, and controlling the target station not to initiate a contention TXOP within the time period corresponding to the target time; or, controlling the target station to terminate a transmission opportunity before a start time point corresponding to the target time, and allowing the target station to compete for a TXOP using a first EDCA parameter set within a time period corresponding to the target time; The priority of the first EDCA parameter set is lower than the priority corresponding to the second EDCA parameter set used by the station in the first BSS that monitors or receives transmission information from the second BSS, or lower than the priority corresponding to the general EDCA parameter set.

43. The method according to claim 41, wherein In a case where the target station is the transmission sender, constraining the transmission of the target station on the target channel and the target time includes: controlling the target station to terminate the transmission opportunity on the target channel before the starting time point corresponding to the target time; or, controlling the target station not to initiate a contention TXOP on the target channel within a time period corresponding to the target time; or allowing the target station to use the first EDCA parameter set within a time period corresponding to the target time to compete for TXOP on the target channel; or, Controlling the target station to terminate the transmission opportunity on the target channel before the starting time point corresponding to the target time, and controlling the target station not to initiate a contention TXOP on the target channel within the time period corresponding to the target time; or Controlling the target station to terminate a transmission opportunity on the target channel before a start time point corresponding to the target time, and allowing the target station to use a first EDCA parameter set to compete for a TXOP on the target channel within a time period corresponding to the target time; The priority of the first EDCA parameter set is lower than the priority corresponding to the second EDCA parameter set used by the station in the first BSS that monitors or receives transmission information from the second BSS, or lower than the priority corresponding to the general EDCA parameter set.

44. The method according to claim 41, wherein In a case where the target station is the transmission recipient, constraining the transmission of the target station on the target channel and / or the target time includes: Allow the target station to initiate transmission on the target channel and / or the target time and send a specified type frame to the second STA device; And / or, the target station is prohibited from sending frames other than the specified type of frames to the second STA device on the target channel and / or the target time; the second STA device is a station in the first BSS that monitors or receives transmission information from the second BSS and sends it to the target station; wherein the length of the response frame of the specified type of frame is less than or equal to the frame length threshold.

45. The method according to any one of claims 36, 37, 39, 40, 42, and 43, wherein: The universal EDCA parameter set is a MU EDCA parameter set.

46. ​​The method according to any one of claims 35 to 45, characterized in that The target resource information includes the target channel information.

47. The method according to claim 46, wherein The target channel is all or part of the channels used by the stations in the first BSS that monitor or receive transmission information from the second BSS.

48. The method according to claim 47, wherein The target channel is a working channel on the link corresponding to the r-TWT operation established in the first BSS.

49. The method according to any one of claims 35 to 45, characterized in that The target time is the time when a station in the first BSS that monitors or receives transmission information from the second BSS performs channel competition and / or transmission.

50. The method according to claim 49, wherein The target time information includes: Information on a time period corresponding to a restricted target wake-up time r-TWT service period of stations in the first BSS that monitor or receive transmission information from the second BSS.

51. The method according to claim 50, characterized in that The target time information includes: Information about a time period that coincides with the r-TWT service period of a station in the first BSS that monitors or receives transmission information from the second BSS.

52. The method according to claim 50 or 51, characterized in that The constraining transmission of a station in the second BSS on a target channel and / or a target time according to the target resource information and / or the target station information includes: Based on the information of the target resource and / or the information of the target site, a channel resource protection enable notification frame is sent to the third STA device in the second BSS; the channel resource protection enable notification frame is used to instruct the third STA device to constrain transmission on the target channel and / or the target time.

53. The method according to claim 52, characterized in that The channel resource protection start notification frame includes a protected period element; The protected period element includes a protected period control field, a protected period count field, a protected period field, a protected period duration field, and a protected period offset field; The protected period control field is used to indicate a method for constraining transmission corresponding to the time information; The protected period count field is used to indicate the number of TBTTs in the beacon interval where the start time of the next time period is located; The protected period field is used to indicate the number of beacon intervals between the start times of the time period; The protected period duration field is used to indicate the duration of the time period; The protected period offset field is used to indicate the offset value between the starting time point of the time period and the TBTT defined by the protected period count field.

54. The method according to claim 53, wherein The protected period control field includes a resource protection mode indication bitmap; Each bit position in the resource protection mode indication bitmap corresponds to a resource protection mode, and the bit value of each bit position in the resource protection mode indication bitmap is used to indicate whether the corresponding resource protection mode is enabled.

55. The method according to any one of claims 52 to 54, characterized in that The method further comprises: A channel resource protection operation notification frame is sent to the third STA device; the channel resource protection operation notification frame is used to instruct the third STA device to end or restart the constraint on transmission on the target channel and / or the target time.

56. The method according to claim 55, characterized in that The channel resource protection operation notification frame includes an indication mark; The indication mark is used to indicate closing or restarting the restriction on transmission on the target channel and / or the target time.

57. The method according to claims 35 to 56, characterized in that The receiving target resource information and / or target site information shared by the first AP device in the first BSS includes: receiving the target resource information and / or target site information directly sent by the first AP device; Alternatively, the target resource information and / or target site information is received, which is indirectly forwarded by the first AP device through non-AP sites in the first BSS and the second BSS.

58. A transmission control method, characterized in that: The method is performed by a third STA device in the second BSS; The third STA device is a non-AP STA; the method includes: Receive a channel resource protection enable notification frame sent by a second AP device in the second BSS; the channel resource protection enable notification frame is sent by the second AP device after receiving target resource information and / or target site information sent by the first AP device in the first BSS; the target resource information and / or target site information is shared by the first AP device based on monitoring or reception situation information; the monitoring or reception situation information is used to indicate transmission information of a target site in the second BSS monitored or received by a site in the first BSS; the target site is a site whose initiated transmission affects or interferes with frame exchange of a site in the first BSS in the first BSS; According to the channel resource protection start notification frame, the transmission of the third STA device on the target channel and / or target time is constrained; the target channel and / or target time is the channel and / or time that requires media access protection in the first BSS.

59. The method according to claim 58, characterized in that The constraining transmission of the third STA device at the target time corresponding to the signal interference includes: terminating the TXOP before the starting time point corresponding to the target time; or, controlling all stations in the second BSS to be in a silent state during a time period corresponding to the target time; or, Not initiating a contention TXOP within the time period corresponding to the target time; or, using a first EDCA parameter set to compete for the TXOP during a time period corresponding to the target time; a priority of the first EDCA parameter set is lower than a priority corresponding to a second EDCA parameter set used by a station in the BSS that monitors or receives transmission information from the second BSS, or lower than a priority corresponding to a common EDCA parameter set; or terminating the TXOP before the starting time point corresponding to the target time and being in a silent state during the time period corresponding to the target time; or terminating the TXOP before the starting time point corresponding to the target time, and not initiating a contention TXOP within the time period corresponding to the target time; or, terminating the TXOP before the starting time point corresponding to the target time, and allowing the first EDCA parameter set to be used to compete for the TXOP during the time period corresponding to the target time; or Allowing transmission to be initiated on the target channel and / or the target time and sending a specified type of frame to the second STA device; and / or prohibiting sending frames other than the specified type of frame to the second STA device; the second STA device is a station in the first BSS that monitors or receives transmission information from the second BSS and sends it to the third STA device; the length of the response frame of the specified type of frame is less than or equal to the frame length threshold.

60. The method according to claim 58, wherein The constraining transmission of the third STA device on the target channel and target time corresponding to the signal interference includes: Before the starting time point corresponding to the target time, terminate the TXOP on the target channel; or, controlling all stations in the second BSS to be in a silent state on the target channel during a time period corresponding to the target time; or, Initiating no contention TXOP on the target channel during the time period corresponding to the target time; or using a first EDCA parameter set within a time period corresponding to the target time to compete for a TXOP on the target channel; a priority of the first EDCA parameter set is lower than a priority corresponding to a second EDCA parameter set used by a station in the first BSS that monitors or receives transmission information from the second BSS, or lower than a priority corresponding to a common EDCA parameter set; or Before the starting time point corresponding to the target time, terminate the TXOP on the target channel and be in a silent state on the target channel during the time period corresponding to the target time; or Before the starting time point corresponding to the target time, terminating the TXOP on the target channel, and not initiating a contention TXOP on the target channel during the time period corresponding to the target time; or Before the starting time point corresponding to the target time, terminate the TXOP on the target channel and allow the use of the first EDCA parameter set to compete for the TXOP on the target channel during the time period corresponding to the target time; or Allowing transmission to be initiated on the target channel and / or the target time and sending a specified type of frame to the second STA device; and / or prohibiting sending frames other than the specified type of frame to the second STA device on the target channel and / or the target time; the second STA device is a station in the first BSS that monitors or receives transmission information from the second BSS and sends it to the third STA device; the length of the response frame of the specified type of frame is less than or equal to the frame length threshold.

61. The method according to claim 59 or 60, characterized in that The universal EDCA parameter set is a MU EDCA parameter set.

62. The method according to any one of claims 58 to 61, characterized in that The target resource information includes the target channel information.

63. The method according to claim 62, characterized in that The target channel is all or part of the channels used by the stations in the first BSS that monitor or receive transmission information from the second BSS.

64. The method according to claim 63, wherein The target channel is a working channel on the link corresponding to the r-TWT operation established in the first BSS.

65. The method according to any one of claims 58 to 64, characterized in that The target time is the time when a station in the first BSS that monitors or receives transmission information from the second BSS performs channel competition and / or transmission.

66. The method according to claim 65, characterized in that The target time information includes: Information about a time period corresponding to a restricted target wake-up time r-TWT service period of stations in the first BSS that monitor or receive transmission information from the second BSS.

67. The method according to claim 66, characterized in that The target time information includes: Information about a time period that coincides with the r-TWT service period of a station in the first BSS that monitors or receives transmission information from the second BSS.

68. The method according to claim 66 or 67, characterized in that The channel resource protection start notification frame includes a protected period element; The protected period element includes a protected period control field, a protected period count field, a protected period field, a protected period duration field, and a protected period offset field; The protected period control field is used to indicate a method for constraining transmission corresponding to the time information; The protected period count field is used to indicate the number of TBTTs in the beacon interval where the start time of the next time period is located; The protected period field is used to indicate the number of beacon intervals between the start times of the time period; The protected period duration field is used to indicate the duration of the time period; The protected period offset field is used to indicate the offset value between the starting time point of the time period and the TBTT defined by the protected period count field.

69. The method according to claim 68, characterized in that The protected period control field includes a resource protection mode indication bitmap; Each bit position in the resource protection mode indication bitmap corresponds to a resource protection mode, and the bit value of each bit position in the resource protection mode indication bitmap is used to indicate whether the corresponding resource protection mode is enabled.

70. The method according to any one of claims 58 to 69, characterized in that The method further comprises: Receive a channel resource protection operation notification frame sent by the second AP device; the channel resource protection operation notification frame is used to instruct the third STA device to end or restart the transmission constraint on the target channel and / or the target time.

71. The method according to claim 70, characterized in that The channel resource protection operation notification frame includes an indication mark; The indication mark is used to indicate closing or restarting the restriction on transmission on the target channel and / or the target time.

72. A device for transmitting, characterized in that The device comprises: A monitoring module, configured to monitor or receive a data unit in a first BSS channel to obtain first monitoring or reception information; the first monitoring or reception information is used to indicate transmission information of a first target station in a second BSS monitored or received by the first STA device; the first target station is a station whose initiated transmission affects or interferes with frame exchange of the first STA device in the first BSS; A reporting module is configured to report the first monitoring or receiving situation information to the first AP device in the first BSS.

73. A device for transmitting, characterized in that The device comprises: an information acquisition module, configured to acquire monitoring or reception information; the monitoring or reception information indicating transmission information of a target station in a second BSS monitored or received in a first BSS channel by a station in a first BSS; the target station being a station whose transmission initiates an impact on or interferes with frame exchange of a station in the first BSS in the first BSS; A sending module is used to share the target resource information and / or target site information with the second AP device in the second BSS based on the monitoring or receiving situation information; the target resource information and / or target site information is used by the second AP device to constrain the transmission of the site in the second BSS on the target channel and / or target time; the target channel and / or target time are the channels and / or times that require media access protection in the first BSS.

74. A device for transmitting, characterized in that The device comprises: a receiving module, configured to receive target resource information and / or target site information shared by a first AP device in a first BSS; the target resource information and / or target site information is shared by the first AP device based on monitoring or reception information; the monitoring or reception information is used to indicate transmission information of a target site in a second BSS monitored or received by a site in the first BSS; the target site is a site whose transmission initiates an impact on or interferes with frame exchange of a site in the first BSS in the first BSS; A constraint module is used to constrain the transmission of sites in the second BSS on the target channel and / or target time based on the information of the target resources and / or the information of the target site; the target channel and / or target time are the channels and / or times that require media access protection in the first BSS.

75. A device for transmitting, characterized in that The device comprises: A receiving module, configured to receive a channel resource protection enable notification frame sent by a second AP device in a second BSS; the channel resource protection enable notification frame is sent by the second AP device after receiving target resource information and / or target site information sent by the first AP device in the first BSS; the target resource information and / or target site information is shared by the first AP device based on monitoring or reception situation information; the monitoring or reception situation information is used to indicate transmission information of a target site in the second BSS monitored or received by a site in the first BSS; the target site is a site whose initiated transmission affects or interferes with frame exchange of a site in the first BSS in the first BSS; A constraint module is used to constrain the transmission of the third STA device on the target channel and / or target time according to the channel resource protection activation notification frame; the target channel and / or target time are the channels and / or times that require media access protection in the first BSS.

76. A STA device, characterized in that: The STA device is a first STA device in a first BSS, and the first STA device is a non-AP STA; the STA device includes a processor, a memory, and a transceiver; The transceiver is used to monitor or receive data units in the first BSS channel to obtain first monitoring or reception situation information; the first monitoring or reception situation information is used to indicate the transmission information of the first target site in the second BSS monitored or received by the first STA device; the first target site is a site that initiates transmission that affects or interferes with the frame exchange of the first STA device in the first BSS; and reports the first monitoring or reception situation information to the first AP device in the first BSS.

77. An AP device, characterized in that: The AP device is an AP device in a first BSS; the AP device includes a processor, a memory, and a transceiver; The transceiver is configured to obtain monitoring or reception information; the monitoring or reception information is configured to indicate transmission information of a target station in the second BSS monitored or received by a station in the first BSS in a channel of the first BSS; The target station is a station whose initiated transmission affects or interferes with frame exchange of stations in the first BSS in the first BSS; based on the monitoring or reception information, target resource information and / or target station information is shared with a second AP device in the second BSS; the target resource information and / or target station information is used by the second AP device to constrain transmission of stations in the second BSS on a target channel and / or target time; The target channel and / or target time is a channel and / or time requiring medium access protection in the first BSS.

78. An AP device, characterized in that: The AP device is an AP device in a second BSS; the AP device includes a processor, a memory, and a transceiver; The transceiver is configured to receive target resource information and / or target site information shared by a first AP device in a first BSS; the target resource information and / or target site information is shared by the first AP device based on monitoring or reception information; the monitoring or reception information is used to indicate transmission information of a target site in the second BSS monitored or received by a station in the first BSS; The target station is a station whose initiated transmission affects or interferes with frame exchanges of stations in the first BSS in the first BSS; The processor is configured to constrain transmission of stations in the second BSS on a target channel and / or a target time based on the target resource information and / or the target station information; The target channel and / or target time is a channel and / or time requiring medium access protection in the first BSS.

79. A STA device, characterized in that: The STA device is a third STA device in a second BSS, and the third STA device is a non-AP STA; the STA device includes a processor, a memory, and a transceiver; The transceiver is configured to receive a channel resource protection activation notification frame sent by a second AP device in the second BSS; the channel resource protection activation notification frame is sent by the second AP device after receiving target resource information and / or target site information sent by the first AP device in the first BSS; the target resource information and / or target site information is shared by the first AP device based on monitoring or reception status information; the monitoring or reception status information is used to indicate transmission information of the target site in the second BSS monitored or received by a station in the first BSS; The target station is a station whose initiated transmission affects or interferes with frame exchanges of stations in the first BSS in the first BSS; The processor is configured to constrain transmission of the third STA device on a target channel and / or a target time according to the channel resource protection start notification frame; The target channel and / or target time is a channel and / or time requiring medium access protection in the first BSS.

80. A computer-readable storage medium, characterized in that The storage medium stores a computer program, which is used to be executed by a processor so that a computer device performs the method according to any one of claims 1 to 14, or the method according to any one of claims 15 to 33, or the method according to any one of claims 34 to 57, or the method according to any one of claims 58 to 71.

81. A chip, characterized in that include: A processor for calling and running a computer program from a memory so that a computer device equipped with the chip performs the method according to any one of claims 1 to 14, or the method according to any one of claims 15 to 33, or the method according to any one of claims 34 to 57, or the method according to any one of claims 58 to 71.

82. A computer program product, characterized in that The computer program product includes computer instructions, which are stored in a computer-readable storage medium; the processor of a computer device reads the computer instructions from the computer-readable storage medium and executes the computer instructions, so that the computer device performs the method according to any one of claims 1 to 14, or the method according to any one of claims 15 to 33, or the method according to any one of claims 34 to 57, or the method according to any one of claims 58 to 71.

83. A computer program, characterized in that The computer program is executed by a processor of a computer device, causing the computer device to perform the method according to any one of claims 1 to 14, or the method according to any one of claims 15 to 33, or the method according to any one of claims 34 to 57, or the method according to any one of claims 58 to 71.

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