Information transmission method and apparatus, storage medium, and program product
Patent Information
- Application Number
- CN202510564687.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-29
- Publication Date
- 2026-10-30
AI Technical Summary
当站点的发射(transmit，Tx)天线与接收(receive，Rx)天线处于同频全双工或相邻频段工作状态时，发射信号可能通过多种路径耦合至接收端，从而影响该站点的通信质量
[0015]本公开实施例公开了第一站点可以基于第一站点向第二站点发送第一信号时使用的时间，确定第三站点禁止第三站点向第一站点发送第二信号的时间(也即第一帧指示的时间)，并向第三站点告知该第一帧，以避免在第一站点在执行发送动作的同时，还执行接收动作，也即规避第一站点同时进行收发，这样可以避免第一站点向第二站点发送的第一信号会通过耦合干扰影响第一站点接收来自第三站点的第二信号，进而降低了第一站点内部的射频干扰，尽可能的保障了站点之间的通信质量。
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Figure CN123021367A_ABST
Abstract
Description
Technical Field
[0001] This disclosure relates to the field of communication technology, and in particular to information transmission methods, devices, storage media and program products. Background Technology
[0002] In wireless communication systems, especially in millimeter-wave band sites, radio frequency self-interference has become a key factor affecting system communication performance. When the transmit (Tx) antenna and receive (Rx) antenna of a site are operating in the same frequency full-duplex or adjacent frequency bands, the transmitted signal may couple to the receiver through multiple paths, thereby affecting the communication quality of the site. Summary of the Invention
[0003] This disclosure provides an information transmission method, apparatus, storage medium, and program product that can maximize the communication quality between stations in a communication network.
[0004] On the one hand, an information transmission method is provided, including: determining a first frame based on the time used when a first station sends a first signal to a second station, wherein the first frame is used to indicate the time when a third station is prohibited from sending a second signal to the first station;
[0005] Send the first frame to the third station.
[0006] In another aspect, an information transmission method is provided, comprising: receiving a first frame from a first station, the first frame being used to indicate a time when a third station is prohibited from sending a second signal to the first station, the first frame being determined based on the time used by the first station when sending a first signal to the second station;
[0007] Determine whether to prohibit the transmission of a second signal to the first station within the time specified in the first frame.
[0008] In another aspect, an information transmission device is provided, comprising: a communication unit and a processing unit; the processing unit is configured to determine a first frame based on the time used when a first station sends a first signal to a second station;
[0009] The communication unit is used to send the first frame to the third station.
[0010] In another aspect, an information transmission device is provided, comprising: a communication unit and a processing unit; the communication unit is configured to receive a first frame from a first station, the first frame being used to indicate a time when a third station is prohibited from sending a second signal to the first station, the first frame being determined based on the time used by the first station when sending a first signal to the second station;
[0011] The processing unit is used to determine whether to prohibit the transmission of the second signal to the first station within the time indicated by the first frame.
[0012] In another aspect, a communication device is provided, comprising: a memory and a processor; the memory and the processor are coupled; the memory is used to store a computer program; and the processor, when executing the computer program, implements the information transmission method of any of the above embodiments.
[0013] In another aspect, a computer-readable storage medium is provided, on which computer program instructions are stored, which, when executed by a processor, implement the information transmission method of any of the above embodiments.
[0014] In another aspect, a computer program product is provided, which includes computer program instructions that, when executed by a processor, implement the information transmission method of any of the above embodiments.
[0015] This disclosure discloses that a first station can determine the time (i.e., the time indicated by the first frame) during which the third station prohibits the third station from sending a second signal to the first station based on the time used when the first station sends a first signal to the second station, and inform the third station of the first frame. This is to prevent the first station from performing a sending action while simultaneously performing a receiving action, that is, to avoid the first station from simultaneously sending and receiving. This can prevent the first signal sent by the first station to the second station from affecting the first station's reception of the second signal from the third station through coupling interference, thereby reducing the radio frequency interference within the first station and ensuring the communication quality between stations as much as possible. Attached Figure Description
[0016] To more clearly illustrate the technical solutions in this disclosure, the accompanying drawings used in some embodiments of this disclosure will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on these drawings.
[0017] Figure 1 An example diagram of an NSTR provided for some embodiments of this disclosure;
[0018] Figure 2 This diagram illustrates a communication example of a station sending and receiving data, provided for some embodiments of this disclosure.
[0019] Figure 3 A communication system architecture diagram provided for some embodiments of this disclosure;
[0020] Figure 4 A flowchart illustrating an information transmission method provided in some embodiments of this disclosure;
[0021] Figure 5 A schematic diagram of a first frame provided for some embodiments of this disclosure;
[0022] Figure 6 This is a schematic diagram of another first frame provided for some embodiments of this disclosure;
[0023] Figure 7 This is a schematic diagram of another first frame provided for some embodiments of this disclosure;
[0024] Figure 8 A schematic diagram illustrating an information transmission method provided in some embodiments of this disclosure;
[0025] Figure 9 A schematic diagram illustrating another information transmission method provided in some embodiments of this disclosure;
[0026] Figure 10 A schematic diagram illustrating another information transmission method provided in some embodiments of this disclosure;
[0027] Figure 11 A flowchart illustrating another information transmission method provided in some embodiments of this disclosure;
[0028] Figure 12 A schematic diagram illustrating another information transmission method provided in some embodiments of this disclosure;
[0029] Figure 13 A schematic diagram illustrating another information transmission method provided in some embodiments of this disclosure;
[0030] Figure 14 A flowchart illustrating another information transmission method provided in some embodiments of this disclosure;
[0031] Figure 15 This is a schematic diagram of the structure of a communication device provided in some embodiments of this disclosure;
[0032] Figure 16 This is a schematic diagram of the structure of another communication device provided in some embodiments of this disclosure. Detailed Implementation
[0033] The technical solutions of this disclosure will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this disclosure, and not all embodiments. Based on the embodiments of this disclosure, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this disclosure.
[0034] Unless the context otherwise requires, throughout the specification and claims, the term "comprise" and its other forms, such as the third-person singular "comprises" and the present participle "comprising," are interpreted as open-ended and encompassing, meaning "including, but not limited to." In the description of the specification, terms such as "one embodiment," "some embodiments," "exemplary embodiments," "example," "specific example," or "some examples," etc., are intended to indicate that a particular feature, structure, material, or characteristic associated with that embodiment or example is included in at least one embodiment or example of this disclosure. The illustrative representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, a particular feature, structure, material, or characteristic may be included in any suitable manner in any one or more embodiments or examples.
[0035] It should be noted that, in this disclosure, the terms "exemplary" or "for example" are used to indicate examples, illustrations, or descriptions. Any embodiment or design described as "exemplary" or "for example" in this disclosure should not be construed as being more preferred or advantageous than other embodiments or designs. Specifically, the use of terms such as "exemplary" or "for example" is intended to present the relevant concepts in a concrete manner.
[0036] Hereinafter, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.
[0037] In the description of this disclosure, unless otherwise stated, " / " means "or," for example, A / B can mean A or B. "And / or" in this document is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A alone, A and B simultaneously, and B alone. Furthermore, "at least one" means one or more, and "more than one" means two or more.
[0038] In this disclosure, suffixes such as “module,” “part,” or “unit” used to represent elements are used only for the purpose of illustrative purposes and have no inherent meaning. Therefore, “module,” “part,” or “unit” can be used interchangeably.
[0039] The following describes the terms used in the embodiments of this disclosure.
[0040] 1. Fiber to the Room (FTTR)
[0041] FTTR technology refers to connecting multiple access points (APs) (e.g., wireless routers) in scenarios such as homes or small and medium-sized enterprises via fiber optic cables. This provides high-bandwidth, high-reliability interconnection for multiple APs, and the connection between master and slave APs can be achieved using a point-to-multipoint optical distribution network. Furthermore, these multiple APs can be deployed in different locations, such as different rooms.
[0042] 2. Millimeter wave
[0043] Millimeter waves refer to electromagnetic waves in the radio wave frequency range of 30 to 300 gigahertz (GHz) (or wavelengths of 1 to 10 millimeters (mm)). However, in wireless communication systems, millimeter waves typically refer to electromagnetic waves within multiple frequency bands ranging from 24 to 86 GHz. Millimeter waves primarily have the following characteristics:
[0044] Feature 1 is that millimeter waves have extremely wide bandwidth. For example, the Institute of Electrical and Electronics Engineers (IEEE) 802.11ay standard protocol stipulates that devices supporting millimeter wave communication mainly operate in the 60 GHz band. Compared to existing wireless fidelity (Wi-Fi) bands (also known as sub-7G mobile communication technology bands), such as 2.4 GHz, 5 GHz, and 6 GHz, the 60 GHz band provides an ultra-wide continuous spectrum (e.g., up to 8.64 GHz for a single channel). Therefore, the millimeter wave band has a wider range of applications in situations where frequency resources are scarce.
[0045] Feature 2 is that millimeter waves have a narrower beam. With the same antenna size, the beam of millimeter waves is much narrower than that of microwaves. Therefore, millimeter waves can distinguish targets that are closer together, making them applicable to a wider range of fields such as Wi-Fi sensing.
[0046] 3. Nonsimultaneous transmit and receive (NSTR) mode
[0047] NSTR refers to a working mode of multi-link operation (MLO) specified in the 802.11be standard protocol. It allows devices to transmit data alternately on multiple links (e.g., 2.4 GHz, 5 GHz, 6 GHz) in a time-division multiplexing manner, but prohibits the simultaneous transmission and reception of signals on different links to avoid self-interference between internal radio frequency modules of the device.
[0048] For example, Figure 1 An example diagram of an NSTR provided for some embodiments of this disclosure. For example... Figure 1 As shown, taking the example of allowing a device to transmit and receive signals on links 1, 2, and 3: the device can send a trigger frame to station 1 on link 1, send data 1 to station 2 on link 2, and send data 2 to station 3 on link 3. The device can also receive data 3 from station 1 on link 1, receive feedback frame 1 from station 2 on link 2, and receive feedback frame 2 from station 3 on link 3. The maximum difference between the end time of sending the trigger frame and the end time of sending data 1 is 4 microseconds (µs), and the maximum difference between the end time of sending data 1 and the end time of sending data 2 is 8 µs.
[0049] While the device is sending frames or data to stations 1, 2, and 3, stations 1, 2, and 3 will not send feedback frames or data back to the device. While the device is receiving feedback frames or data from stations 1, 2, and 3, the device will not send frames or data back to stations 1, 2, and 3.
[0050] The following is a more detailed description of MLO: MLO technology is a core feature specified in the 802.11be standard protocol. It aims to break through the limitations of serial transmission in traditional Wi-Fi systems by using multiple frequency bands or channels for data transmission simultaneously, thereby improving network throughput, reducing latency, and enhancing connection reliability.
[0051] Furthermore, the 802.11be standard protocol stipulates that MLO technology requires multiple links to be defined on different channels. Since an access point (AP) can operate in any of the following frequency bands: 2.4GHz, 5GHz, or 6GHz, signals transmitted in these bands have a wide beam coverage, making it difficult to effectively spatially separate multiple links on the same channel. Therefore, if two links operate on the same channel, they will interfere with each other, making simultaneous parallel transmission difficult and failing to fully utilize the advantages of multiple links. Therefore, it is necessary to place different links on different channels to minimize self-interference and improve the overall network communication performance.
[0052] For millimeter-wave bands, due to their shorter wavelengths and higher attenuation, access points (APs) can form extremely narrow and more directional beams using higher-density antenna arrays, enabling relatively independent spatial transmission within the same frequency band. Millimeter-wave bands can utilize massive MIMO and beamforming technologies to concentrate energy into a smaller spatial area, effectively reducing interference between links and, to some extent, achieving multi-link parallel communication with MLO on the same channel.
[0053] As described above regarding millimeter waves, for devices operating in the millimeter wave band, due to the narrower beam and wider bandwidth of millimeter waves, MIMO or array antennas combined with beamforming technology can be used to achieve independent control of the beam corresponding to each antenna, enabling them to provide services to different users, thereby significantly reducing mutual interference between antennas.
[0054] However, radio frequency self-interference has become a key factor affecting system communication performance. When the transmitting and receiving antennas of a site are operating in the same frequency full-duplex or adjacent frequency bands, the transmitted signal may couple to the receiving end through multiple paths, thereby affecting the communication quality of the site.
[0055] For example, Figure 2 This diagram illustrates a communication example of a station sending and receiving data, provided for some embodiments of this disclosure. Figure 1 As shown, taking the example of allowing a device to transmit and receive signals on both link1 and link2: the device can send data 3 and data 4 to station 2 on link1, and send data 5 to station 3 on link2, while receiving data 6 from station 3 on link2. However, while the device is sending data 4 to station 2 on link1, it is also receiving data 6 from station 3 on link2. This means the device is simultaneously transmitting and receiving, which could cause data 6 to be coupled to the device through multiple paths, thus affecting the device's communication quality.
[0056] In response, this disclosure provides an information transmission method in which a first station determines the time during which a third station prohibits the third station from sending a second signal to the first station (i.e., the time indicated by the first frame) based on the time used when the first station sends a first signal to the second station, and informs the third station of the first frame to avoid the first station performing a receiving action while performing a sending action, that is, to avoid the first station from simultaneously sending and receiving. This can prevent the first signal sent by the first station to the second station from affecting the first station's reception of the second signal from the third station through coupling interference, thereby reducing radio frequency interference within the first station and ensuring the communication quality between stations as much as possible.
[0057] The information transmission method provided in this disclosure can be applied to systems with various communication standards. For example, the systems to which the information transmission method provided in this disclosure is applicable include, but are not limited to, wireless local area network (WLAN) systems, such as wireless fidelity (Wi-Fi) or ambient power (AMP), long term evolution (LTE) systems, various versions based on LTE evolution, 5G systems, future mobile communication networks, or multiple converged communication systems. Furthermore, the information transmission method provided in this disclosure can also be applied to future-oriented communication systems.
[0058] For example, the above information transmission method can be applied to, for example, Figure 3 In communication systems, such as Figure 3 As shown, the communication system includes: a first station 301, a second station 302, and a third station 303.
[0059] The first station 301 can communicate with the second station 302 and the third station 303 respectively. The first station 301 can be an access point (AP), etc. The second station 302 and the third station 303 can be non-access points (non-APs), stations (STAs), or stations associated with APs, etc.
[0060] In some embodiments, the first station 301 determines the first frame based on the time used when the first station 301 sends the first signal to the second station 302, and sends the first frame to the third station 303. The first frame is used to indicate the time when the third station 303 is prohibited from sending the second signal to the first station 301, so as to avoid the first station performing the receiving action while performing the sending action, that is, to avoid the first station performing sending and receiving at the same time. This can prevent the first signal sent by the first station to the second station from affecting the first station's reception of the second signal from the third station through coupling interference, thereby reducing the radio frequency interference inside the first station and ensuring the communication quality between stations as much as possible.
[0061] It should be noted that, Figure 3 This is just an example framework diagram. Figure 3 The number of communication devices included, and the names of each communication device, are unlimited, except for... Figure 3 In addition to the communication equipment shown, the communication system may also include other communication equipment, such as relay stations.
[0062] The application scenarios of the embodiments disclosed herein are not limited. The system architecture and business scenarios described in the embodiments of this disclosure are for the purpose of more clearly illustrating the technical solutions of the embodiments of this disclosure, and do not constitute a limitation on the technical solutions provided by the embodiments of this disclosure. As those skilled in the art will know, with the evolution of network architecture and the emergence of new business scenarios, the technical solutions provided by the embodiments of this disclosure are also applicable to similar technical problems.
[0063] The information transmission method provided by the embodiments of this disclosure will now be described in detail with reference to the accompanying drawings.
[0064] The information transmission method provided in this disclosure can be applied to... Figure 3 The first station 301 in the communication system shown. Figure 4 A flowchart illustrating an information transmission method is shown, such as... Figure 4 As shown, the information transmission method includes the following S401 and S402.
[0065] S401. Determine the first frame based on the time used when the first station sends the first signal to the second station.
[0066] The first frame is used to indicate the time when the third station is prohibited from sending the second signal to the first station.
[0067] For example, the first signal and the second signal described in the embodiments of this disclosure may include downlink physical layer protocol data unit (DL PPDU) or other information, and the embodiments of this disclosure do not impose any limitations on this. Furthermore, the unit of time described in the embodiments of this disclosure may be microseconds (µs) or other time units, and the embodiments of this disclosure do not impose any limitations on this.
[0068] In some embodiments, the second and third stations may correspond to different transmission directions, for example, the second and third stations may correspond to different sectors, or for example, the second and third stations may correspond to different antennas; the second and third stations may correspond to the same transmission direction, for example, the second and third stations may correspond to the same sector, or for example, the second and third stations may correspond to the same antenna. This disclosure does not limit this.
[0069] S402, Send the first frame to the third station.
[0070] In some embodiments, the implementation of S402 above can be as follows: at the beginning of the transmission opportunity (TXOP) held by the first station, the first frame is sent to the third station. Here, the TXOP held by the first station refers to the time during which the first station can continuously transmit data after obtaining the right to use wireless communication resources.
[0071] In another alternative implementation, the above S402 process can be: before the start time of the TXOP held by the first station, send the first frame to the third station.
[0072] Furthermore, in this implementation, the first frame can be used in channel access or other processes, and this embodiment of the disclosure does not impose any restrictions on this.
[0073] The above is an exemplary description of the implementation process of S402. However, S402 may also be implemented in other ways. For example, the implementation process of S402 may also be: during the TXOP held by the first station, the first frame is sent to the third station. This embodiment of the present disclosure does not limit this.
[0074] Furthermore, this disclosure does not limit the number of third stations; that is, this disclosure may involve one or more third stations. In one possible implementation, the first station may send a first frame to each of the aforementioned first or more third stations via broadcast, multicast, or unicast.
[0075] Furthermore, in one possible implementation, after S202, the first station receives a fourth frame from the third station. The fourth frame is used to indicate that the third station received the first frame. Additionally, the fourth frame can also be used to indicate that the third station did not receive the first frame; this disclosure does not limit this approach.
[0076] In one possible implementation, the first frame is carried on any of the following channels: a 2.4G channel, a 5G channel, a 6G channel, or a millimeter-wave channel. The above is an exemplary description of the channel on which the first frame is carried; the first frame can also be carried on a 3G channel, and this disclosure does not limit this. Furthermore, the signals involved in this disclosure can all be replaced with links, resources, or other descriptions, and this disclosure does not limit this.
[0077] It is understandable that if the first frame is carried on any of the following channels: 2.4G channel, 5G channel, or 6G channel, it indicates that the third station can send the first frame through the sub-7G channel. This would eliminate the need to use the IMMW directional antenna to send the first frame, thus avoiding the problem of the IMMW directional antenna obstructing the transmission of frames to stations under the corresponding coverage sector.
[0078] The first frame mentioned above will be explained in detail below.
[0079] In some embodiments, the first frame includes information about a first time and / or a second time. The first time is the time when the third station is prohibited from sending the second signal to the first station, and the second time is the time when the third station is allowed to send the second signal to the first station. That is, the first frame can explicitly indicate the time when the third station is prohibited from sending the second signal to the first station (i.e., the first time), or it can implicitly indicate the first time, that is, the first frame reveals the time when the third station is allowed to send the second signal to the first station (i.e., the second time). Thus, any time other than the second time mentioned above can be considered the first time.
[0080] Furthermore, in this embodiment of the disclosure, in addition to the aforementioned information about the first time and / or the second time, the first frame may also include other information. In one possible implementation, the first frame further includes an identification (ID) of the first sector and / or an identification of the first antenna. The identification of the first sector and / or the identification of the first antenna are used to determine whether the third station is prohibited from transmitting the second signal to the first station during the time indicated by the first frame. The identification of the first sector and / or the identification of the first antenna can both be used to define the transmission direction of the first station.
[0081] The above is an exemplary description of other information that may be included in the first frame. Other information may also be included in the first frame, such as the media access control (MAC) address of the third site. This disclosure does not limit this.
[0082] Furthermore, regarding first-time information, in one possible implementation, first-time information includes at least one of the following: the start time of the first time, the duration of the first time, and the end time of the first time.
[0083] For example, if the information of the first time may include the start time of the first time and the duration of the first time, then the first site may determine the first time based on the start time of the first time and the duration of the first time.
[0084] If the first information includes the start time of the first time, the first station can determine the first time based on the pre-configured duration of the first time and the start time of the first time indicated by the first frame.
[0085] If the first information includes the duration of the first time, the first station can determine the first time based on the pre-configured start time of the first time and the duration of the first time indicated by the first frame.
[0086] The above is a detailed explanation of the process by which the first site determines the first time based on the first time information, assuming that the first time information may include the start time and / or the duration of the first time. However, in other cases, such as when the first time information may include the end time and / or the duration of the first time, or when the first time information may include the start time and / or the end time of the first time, the process by which the first site determines the first time can be understood by referring to the descriptions in the corresponding sections above, and will not be repeated here.
[0087] For example, Figure 5 This is a schematic diagram of a first frame provided for some embodiments of this disclosure. For example... Figure 5 As shown, taking the first frame, which includes information about the first time, the identifier of the first sector, and the identifier of the first antenna, as an example: the first frame can be an unavailable information announce frame.
[0088] The identifier for the first sector is carried in the antennaID field. The identifier for the first antenna is carried in the sector ID field.
[0089] The first-time information can be carried in the unavailable information field of the Integrated Mobile Multimedia WLAN (IMMW) in the unavailable information announcement frame. The first-time information includes: the start time of the first time, the duration of the first time, and the end time of the first time. The start time of the first time is carried in the unavailable begin time field, the duration of the first time is carried in the unavailable time field, and the end time of the first time is carried in the unavailable end time field.
[0090] Furthermore, in conjunction with the above example, the fourth frame can be an unavailable information response frame. The fourth frame can be specifically used to indicate that the third station has received an unavailable information announcement frame or information at the first moment. The receipt of the unavailable information announcement frame or information at the first moment by the third station can be carried in the IMW unavailable information confirm field in the unavailable information response frame.
[0091] Furthermore, regarding the information at the second time, in one possible implementation, the information at the second time includes at least one of the following: the start time of the second time, the duration of the second time, and the end time of the second time.
[0092] The process of determining the second time from the first site can be understood by referring to the relevant description of the process of determining the first time from the first site mentioned above, and will not be repeated here.
[0093] For example, Figure 6 This is a schematic diagram of another first frame provided for some embodiments of this disclosure. For example... Figure 6 As shown, taking the first frame, which includes information about the second time, the identifier of the first sector, and the identifier of the first antenna, as an example: the first frame can be an available information announce frame.
[0094] The identifier for the first sector is carried in the antennaID field. The identifier for the first antenna is carried in the sector ID field.
[0095] The second time information can be carried in the available information field of the IMW (Information on Available Mover) in the unavailable information announcement frame. The second time information includes: the start time of the second time, the duration of the second time, and the end time of the second time. The start time of the second time is carried in the available begin time field, the duration of the second time is carried in the available time field, and the end time of the second time is carried in the available end time field.
[0096] Furthermore, in conjunction with the above example, the fourth frame can be an available information response frame. The fourth frame can be specifically used to indicate that the third station has received an unavailable information announcement frame or information at a second time. The receipt of the unavailable information announcement frame or information at a second time by the third station can be carried in the available information confirm field of the available information response frame.
[0097] Furthermore, regarding the operation of a third station sending a second signal to a first station as described in the embodiments of this disclosure, in one possible implementation, the third station sending the second signal to the first station includes: the third station sending the second signal to the first station non-triggering. That is, the third station is not allowed to actively send the second signal to the first station, but is allowed to passively send the second signal to the first station in response to other signals or operations.
[0098] Furthermore, in this case, for example, Figure 7 This is a schematic diagram of another first frame provided for some embodiments of this disclosure. For example... Figure 7 As shown, taking the first frame, which includes information about the first time, the identifier of the first sector, and the identifier of the first antenna, as an example: the first frame can be an untrigger-based only UL transmission control frame.
[0099] The identifier for the first sector is carried in the antennaID field. The identifier for the first antenna is carried in the sector ID field.
[0100] The information for the first time can be carried in the untrigger-based only uplink transmission control frame, including the untrigger-based only UL transmission announce field. This information includes: the start time, duration, and end time of the first time. Specifically, the start time is carried in the untrigger UL trans only begin time field, the duration is carried in the untrigger UL trans only time field, and the end time is carried in the untrigger UL trans only end time field.
[0101] Furthermore, for example, taking a first frame that includes information about the first time, the identifier of the first sector, and the identifier of the first antenna: the first frame can be a trigger-based only UL transmission control frame.
[0102] The identifier for the first sector is carried in the antennaID field. The identifier for the first antenna is carried in the sector ID field.
[0103] The first-time information can be carried in the trigger-based only UL transmission announce field within the trigger-based only uplink transmission control frame. The second-time information includes: the start time of the second time, the duration of the second time, and the end time of the second time. The start time of the second time is carried in the trigger-based only uplink transmission begin time field, the duration of the second time is carried in the trigger-based only uplink transmission time field, and the end time of the second time is carried in the trigger-based only uplink transmission end time field.
[0104] In one example, Figure 8 This is a schematic diagram illustrating an information transmission method provided in some embodiments of this disclosure. For example... Figure 8As shown, taking AP1 as the first station, STA1 or STA2 as the second station, and STA1 or STA2 as the third station other than the second station, AP1 and STA2 communicate on link1 and link2, and AP1 and STA1 communicate on link3 and link4 as an example, the information transmission method provided in this embodiment will be described in detail.
[0105] During the period when AP1 holds TXOP1, AP1 can communicate with STA2 on link1. For example, AP1 can send a first signal (e.g., DL PPDU) 1 to STA2 on link1, and STA2 can send a feedback frame (e.g., block acknowledgment (BA) frame) of the first signal 1 to AP1 on link1. Furthermore, AP1 can send a first signal 2 to STA2 on link1, and STA2 can send a feedback frame of the first signal 2 to AP1 on link1.
[0106] TXOP1 is the TXOP used for communication between AP1 and STA2. link1 is the millimeter-wave channel.
[0107] At the start of AP1 holding TXOP1, AP1 can communicate with STA1 on link3. For example, AP1 can send the first frame (e.g., initial control frame (ICF)) to STA2 on link3. Correspondingly, STA1 can send the fourth frame (initial control response (ICR)) to AP1 on link3.
[0108] Link3 can be any of the following signals: 2.4G channel, 5G channel, or 6G channel. The first frame 1 is used to indicate the time during which STA1 is prohibited from sending a second signal to AP1.
[0109] STA1 determines whether to prohibit the transmission of a second signal to AP1 within the time specified in the first frame 1.
[0110] When TXOP1 held by AP1 has not ended, AP1 competes for TXOP2 on link4 to communicate with STA1.
[0111] During the period when AP1 holds TXOP2, AP1 can communicate with STA1 on link4. For example, AP1 can send a second signal (e.g., DL PPDU)1 to STA1 on link4, and STA1 can send a feedback frame (e.g., BA frame) of the second signal1 to AP1 on link4. Furthermore, AP1 can send a second signal 2 (e.g., DL PPDU2) to STA1 on link4, and STA1 can send a feedback frame of the second signal2 to AP1 on link4.
[0112] Link4 is the millimeter-wave channel.
[0113] At the start of AP1 holding TXOP2, AP1 can communicate with STA2 on link2. For example, AP1 can send the first frame 2 to STA2 on link2, and correspondingly, STA2 can send the fourth frame 2 to AP1 on link2.
[0114] Link2 can be any of the following signals: 2.4G channel, 5G channel, or 6G channel. This first frame 2 is used to indicate the time during which STA2 is prohibited from sending the second signal to AP1.
[0115] STA1 determines whether to prohibit the transmission of a second signal to AP1 within the time specified in the first frame 2.
[0116] Furthermore, during the overlap of TXOP1 and TXOP2, AP1 can also allow STA1 to send a second signal and allow STA1 to send a feedback frame of the second signal to AP1. Specifically, during the overlap of TXOP1 and TXOP2, triggered STA1 is allowed to send a second signal to AP1, but non-triggered STA1 is not allowed to send a second signal to AP1, which means that NSTR is supported on millimeter wave signals.
[0117] In one example, Figure 9 This is a schematic diagram illustrating another information transmission method provided in some embodiments of this disclosure. For example... Figure 9 As shown, taking AP1 as the first station, STA1 or STA2 as the second station, and STA1 or STA2 as the third station other than the second station, AP1 and STA2 communicate on link1 and link2, and AP1 and STA1 communicate on link3 and link4 as an example, the information transmission method provided in this embodiment will be described in detail.
[0118] Compared to Figure 8 Regarding the information transmission method shown, Figure 9In the information transmission method shown, the first frame 1 is sent before the start time of AP1 holding TXOP1, and the first frame 2 is sent before the start time of AP1 holding TXOP2. Figure 9 The first frame involved in the information transmission method shown is used for channel access.
[0119] about Figure 9 Other descriptions of the information transmission method shown can be found in [reference]. Figure 8 The information transmission method described herein will be understood and will not be repeated here.
[0120] In one example, Figure 10 This is a schematic diagram illustrating another information transmission method provided in some embodiments of this disclosure. For example... Figure 10 As shown, taking AP1 as the first station, STA1 or STA2 as the second station, and STA1 or STA2 as the third station, and AP1 and STA2 communicating on link1 and AP1 and STA2 communicating on link4 as an example, the information transmission method provided in this embodiment will be described in detail.
[0121] During the period when AP1 holds TXOP1, AP1 can communicate with STA2 on link1. For example, AP1 can send a first signal (e.g., DL PPDU) 1 to STA2 on link1, and STA2 can send a feedback frame (e.g., BA frame) of the first signal 1 to AP1 on link1.
[0122] At the start of AP1 holding TXOP1, AP1 can send the first frame (e.g., ICF frame) to STA1 on link4, and correspondingly, STA1 can send the fourth frame (e.g., ICR frame) to AP1 on link4.
[0123] The first frame 3 is used to indicate the time when STA1 is prohibited from sending the second signal to AP1.
[0124] During the period when AP1 holds TXOP2, AP1 can communicate with STA1 on link4. For example, AP1 can send a second signal 1 to STA1 on link4, and STA1 can correspondingly send a feedback frame (e.g., a BA frame) of the second signal 1 to AP1 on link4.
[0125] At the start of AP1 holding TXOP2, AP1 can send the first frame (e.g., ICF frame) 4 to STA2 on link1, and correspondingly, STA2 can send the fourth frame (e.g., ICR frame) 4 to AP1 on link1.
[0126] The first frame 4 is used to indicate the time when STA2 is prohibited from sending the second signal to AP1.
[0127] During the overlap of TXOP1 and TXOP2, AP1 can also send a second signal to STA1 and allow STA1 to send a feedback frame of the second signal to AP1. Specifically, during the overlap of TXOP1 and TXOP2, triggered STA1 is allowed to send a second signal to AP1, but non-triggered STA1 is not allowed to send a second signal to AP1, which means that NSTR is supported on millimeter wave signals.
[0128] As described above regarding the first frame, it can indicate the time during which the third station is prohibited from sending the second signal to the first station. However, in the disclosed embodiments, the time during which the third station is prohibited from sending the second signal to the first station can be adjusted (or replaced with an update). Therefore, in some embodiments, in conjunction with... Figure 4 ,like Figure 11 As shown, after S402 above, the method provided in this embodiment further includes:
[0129] S1101, Send the third frame to the third station.
[0130] The third frame is used to indicate the time when the third station is prohibited from sending the second signal to the first station, that is, to adjust the first time.
[0131] In some embodiments, the third frame includes at least one of the following: the start time of the adjusted first time, the duration of the adjusted first time, and the end time of the adjusted first time.
[0132] Furthermore, the adjustment of the first time involved in the embodiments of this disclosure may include shortening the first time or extending the first time, and the embodiments of this disclosure do not limit this.
[0133] In one example, Figure 12 This is a schematic diagram illustrating another information transmission method provided in some embodiments of this disclosure. For example... Figure 12 As shown, taking AP1 as the first station, STA1 or STA2 as the second station, and STA1 or STA2 as the third station other than the second station, AP1 and STA2 communicate on link1 and link2, and AP1 and STA1 communicate on link3 and link4 as an example, the information transmission method provided in this embodiment will be described in detail.
[0134] Compared to Figure 8 Regarding the information transmission method shown, in Figure 12In the information transmission method shown, the first station also sends a third frame to the third station. This third frame is used to shorten the time during which the third station is prohibited from sending the second signal to the first station, that is, to shorten the first time. For example, the third frame includes the start time of the shortened first time. In this example, only the start time of the first time is shortened, and the duration and end time of the first time are not adjusted.
[0135] about Figure 12 Other descriptions of the information transmission method shown can be found in [reference]. Figure 8 The information transmission method described herein will be understood and will not be repeated here.
[0136] In one example, Figure 13 This is a schematic diagram illustrating another information transmission method provided in some embodiments of this disclosure. For example... Figure 13 As shown, taking AP1 as the first station, STA1 or STA2 as the second station, and STA1 or STA2 as the third station other than the second station, AP1 and STA2 communicate on link1 and link2, and AP1 and STA1 communicate on link3 and link4 as an example, the information transmission method provided in this embodiment will be described in detail.
[0137] Compared to Figure 8 Regarding the information transmission method shown, in Figure 13 In the information transmission method shown, the first station also sends a third frame to the third station. This third frame is used to shorten the time during which the third station is prohibited from sending the second signal to the first station, that is, to shorten the first time. For example, the third frame includes the start time and end time of the shortened first time. In this example, only the start time of the first time is shortened, and the duration of the first time is not adjusted.
[0138] about Figure 13 Other descriptions of the information transmission method shown can be found in [reference]. Figure 8 The information transmission method described herein will be understood and will not be repeated here.
[0139] The information transmission method provided in this disclosure can be applied to... Figure 3 The third station 303 in the communication system shown. Figure 14 A flowchart illustrating another information transmission method is shown, such as... Figure 14 As shown, the information transmission method includes the following S1401 and S1402.
[0140] S1401, Receive the first frame from the first station.
[0141] The first frame is used to indicate the time when the third station is prohibited from sending the second signal to the first station. The first frame is determined based on the time used by the first station to send the first signal to the second station.
[0142] S1402. Determine whether to prohibit the transmission of a second signal to the first station within the time specified in the first frame.
[0143] In some embodiments, the first frame further includes an identifier of the first sector and / or an identifier of the first antenna. In this implementation, the above-described S1402 process can be as follows: if the third station is currently within the first sector and / or the antenna used by the third station to send the second signal to the first station is the first antenna, the third station determines that sending the second signal to the first station is prohibited during the time indicated by the first frame.
[0144] In another alternative implementation, the third station determines that it is prohibited from sending the second signal to the first station during the time indicated by the first frame if the third station is not currently within the first sector and / or the antenna used by the third station when sending the second signal to the first station is not the first antenna.
[0145] The above description uses the example of the first frame including the identifier of the first sector and / or the identifier of the first antenna, and also uses the example of determining whether the third station should prohibit sending the second signal to the first station within the time indicated by the first frame based on the identifier of the first sector and / or the identifier of the first antenna. However, the first frame may also include other information, so the third station can also determine whether it should prohibit sending the second signal to the first station within the time indicated by the first frame based on this other information. This disclosure does not limit this aspect.
[0146] It should be noted that the descriptions of the first frame, the first signal, the second signal, the information of the first time, the information of the second time, and the related effects can be referred to the description on the first site side, and will not be repeated here in the embodiments of this disclosure.
[0147] It is understood that, in order to achieve the above-mentioned functions, the information transmission device includes hardware structures and / or software modules corresponding to the execution of each function. Those skilled in the art should readily recognize that, based on the algorithmic steps of the examples described in conjunction with the embodiments of this disclosure, this disclosure can be implemented in hardware or a combination of hardware and computer software. Whether a function is executed in hardware or by computer software driving hardware depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this disclosure.
[0148] This disclosure embodiment can divide the information transmission device into functional modules according to the above method embodiment. For example, each function can be divided into a separate functional module, or two or more functions can be integrated into one functional module. The integrated module can be implemented in hardware or software. It should be noted that the module division in this disclosure embodiment is illustrative and only represents one logical functional division. In actual implementation, there may be other division methods. The following description uses the example of dividing each functional module according to each function.
[0149] Figure 15 This is a schematic diagram of a communication device provided in an embodiment of this disclosure. The communication device can execute the information transmission method provided in the above-described method embodiments. Figure 15 As shown, the communication device includes a communication unit 1501 and a processing unit 1502.
[0150] when Figure 15 The structural diagram shown is used to represent the structure of the first station:
[0151] Processing unit 1502 is used to determine a first frame based on the time used when the first station sends a first signal to the second station. The first frame is used to indicate the time when the third station is prohibited from sending a second signal to the first station.
[0152] Communication unit 1501 is used to send the first frame to the third station.
[0153] In one possible implementation, the first frame includes information about a first time and / or a second time, where the first time is the time when the third station is prohibited from sending the second signal to the first station, and the second time is the time when the third station is allowed to send the second signal to the first station.
[0154] In one possible implementation, the information at the first moment includes at least one of the following: the start time of the first moment, the duration of the first moment, and the end time of the first moment.
[0155] In one possible implementation, the information of the second time includes at least one of the following: the start time of the second time, the duration of the second time, and the end time of the second time.
[0156] In one possible implementation, the third station sending the second signal to the first station includes: the third station sending the second signal to the first station non-triggering.
[0157] In one possible implementation, the communication unit 1501 is further configured to send a first frame to the third station at the start of the transmission opportunity TXOP held by the first station.
[0158] In one possible implementation, the communication unit 1501 is further configured to send a first frame to the third station before the start time of the TXOP held by the first station.
[0159] In one possible implementation, the first frame is carried on any of the following channels: 2.4G channel, 5G channel, 6G channel, or millimeter wave channel.
[0160] In one possible implementation, the communication unit 1501 is also used to send a third frame to the third station, the third frame being used to indicate the time for adjusting the prohibition of the third station from sending the second signal to the first station.
[0161] In one possible implementation, the third frame includes at least one of the following: the start time of the adjusted first time, the duration of the adjusted first time, and the end time of the adjusted first time, wherein the first time is the time during which the third station is prohibited from sending the second signal to the first station.
[0162] In one possible implementation, the first frame also includes an identifier for the first sector and / or an identifier for the first antenna, which is used to determine whether the third station is prohibited from sending a second signal to the first station during the time indicated by the first frame.
[0163] In one possible implementation, the communication unit 1501 is also configured to receive a fourth frame from a third station, the fourth frame being used to indicate that the third station has received the first frame.
[0164] when Figure 15 The structural diagram shown is used to represent the structure of the third station:
[0165] The communication unit 1501 is used to receive a first frame from the first station. The first frame is used to indicate the time when the third station is prohibited from sending a second signal to the first station. The first frame is determined based on the time used by the first station to send the first signal to the second station.
[0166] Processing unit 1502 is used to determine whether to prohibit the transmission of the second signal to the first station within the time indicated by the first frame.
[0167] In one possible implementation, the first frame includes information about a first time and / or a second time, where the first time is the time when the third station is prohibited from sending the second signal to the first station, and the second time is the time when the third station is allowed to send the second signal to the first station.
[0168] In one possible implementation, the information at the first moment includes at least one of the following: the start time of the first moment, the duration of the first moment, and the end time of the first moment.
[0169] In one possible implementation, the information of the second time includes at least one of the following: the start time of the second time, the duration of the second time, and the end time of the second time.
[0170] In one possible implementation, the third station sending the second signal to the first station includes: the third station sending the second signal to the first station non-triggering.
[0171] In one possible implementation, the communication unit 1501 is further configured to receive a first frame from the first station at the start of the transmission opportunity TXOP held by the first station.
[0172] In one possible implementation, the communication unit 1501 is further configured to receive the first frame from the first station before the start time of the TXOP held by the first station.
[0173] In one possible implementation, the first frame is carried on any of the following channels: 2.4G channel, 5G channel, 6G channel, or millimeter wave channel.
[0174] In one possible implementation, the communication unit 1501 is further configured to receive a third frame from the first station, the third frame being configured to indicate the time for adjusting the prohibition of the third station from sending a second signal to the first station.
[0175] In one possible implementation, the third frame includes at least one of the following: the start time of the adjusted first time, the duration of the adjusted first time, and the end time of the adjusted first time, wherein the first time is the time during which the third station is prohibited from sending the second signal to the first station.
[0176] In one possible implementation, the first frame also includes an identifier of the first sector and / or an identifier of the first antenna; the processing unit 1502 is further configured to determine that the transmission of the second signal to the first station is prohibited during the time indicated by the first frame, provided that the third station is currently located within the first sector and / or the antenna used by the third station to transmit the second signal to the first station is the first antenna.
[0177] In one possible implementation, the communication unit 1501 is also configured to receive a fourth frame from a third station, the fourth frame being used to indicate that the third station has received the first frame.
[0178] In implementing the functionality of the integrated modules described above using hardware, this disclosure provides another possible structure for the communication device involved in the above embodiments. For example... Figure 16 As shown, the communication device 160 includes: a processor 1602 and a bus 1604. Optionally, the communication device may also include a memory 1601; optionally, the communication device may also include a communication interface 1603.
[0179] Processor 1602 may implement or execute various exemplary logic blocks, modules, and circuits described in conjunction with embodiments of this disclosure. Processor 1602 may be a central processing unit, a general-purpose processor, a digital signal processor, an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA), or other programmable logic devices, transistor logic devices, hardware components, or any combination thereof. It may implement or execute various exemplary logic blocks, modules, and circuits described in conjunction with embodiments of this disclosure. Processor 1602 may also be a combination of computing functions, such as including one or more microprocessor combinations, a combination of a DSP and a microprocessor, etc.
[0180] The communication interface 1603 is used to connect to other devices via a communication network. This communication network can be Ethernet, wireless access network, wireless local area network (WLAN), etc.
[0181] The memory 1601 may be a read-only memory (ROM) or other type of static storage device capable of storing static information and instructions, random access memory (RAM) or other type of dynamic storage device capable of storing information and instructions, or electrically erasable programmable read-only memory (EEPROM), disk storage media or other magnetic storage devices, or any other medium capable of carrying or storing desired program code in the form of instructions or data structures and accessible by a computer, but is not limited thereto.
[0182] In one possible implementation, the memory 1601 can exist independently of the processor 1602. The memory 1601 can be connected to the processor 1602 via a bus 1604 and is used to store instructions or program code. When the processor 1602 calls and executes the instructions or program code stored in the memory 1601, it can implement the information transmission method provided in the embodiments of this disclosure.
[0183] In another possible implementation, the memory 1601 can also be integrated with the processor 1602.
[0184] The 1604 bus can be an extended industry standard architecture (EISA) bus, etc. The 1604 bus can be divided into address bus, data bus, control bus, etc. For ease of representation, Figure 16The bus is represented by a single thick line, but this does not mean that there is only one bus or one type of bus.
[0185] Some embodiments of this disclosure provide a computer-readable storage medium (e.g., a non-transitory computer-readable storage medium) storing computer program instructions that, when executed on a computer, cause the computer to perform an information transmission method as described in any of the above embodiments.
[0186] For example, the computer-readable storage media described above may include, but are not limited to: magnetic storage devices (e.g., hard disks, floppy disks, or magnetic tapes), optical disks (e.g., compact disks (CDs), digital versatile disks (DVDs), etc.), smart cards, and flash memory devices (e.g., erasable programmable read-only memory (EPROMs), cards, sticks, or key drives, etc.). The various computer-readable storage media described in this disclosure may represent one or more devices and / or other machine-readable storage media for storing information. The term "machine-readable storage medium" may include, but is not limited to, wireless channels and various other media capable of storing, containing, and / or carrying instructions and / or data.
[0187] This disclosure provides a computer program product containing instructions that, when run on a computer, cause the computer to execute the information transmission method of any of the above embodiments. The above are merely specific embodiments of this disclosure, but the scope of protection of this disclosure is not limited thereto. Any variations or substitutions within the technical scope disclosed in this disclosure should be covered within the scope of protection of this disclosure. Therefore, the scope of protection of this disclosure should be determined by the scope of the claims.
Claims
1. An information transmission method, characterized in that, Applied to the first site, the method includes: Based on the time used when the first station sends the first signal to the second station, a first frame is determined, and the first frame is used to indicate the time when the third station is prohibited from sending the second signal to the first station; The first frame is sent to the third station.
2. The method according to claim 1, characterized in that, The first frame includes information at a first time and / or at a second time, wherein the first time is the time during which the third station is prohibited from sending the second signal to the first station, and the second time is the time during which the third station is allowed to send the second signal to the first station.
3. The method according to claim 2, characterized in that, The information of the first time includes at least one of the following: the start time of the first time, the duration of the first time, and the end time of the first time.
4. The method according to claim 2, characterized in that, The information of the second time includes at least one of the following: the start time of the second time, the duration of the second time, and the end time of the second time.
5. The method according to any one of claims 1-4, characterized in that, The third station sending the second signal to the first station includes: the third station sending the second signal to the first station non-triggering.
6. The method according to any one of claims 1-4, characterized in that, Sending the first frame to the third station includes: At the start of the transmission opportunity TXOP held by the first station, the first frame is sent to the third station.
7. The method according to any one of claims 1-4, characterized in that, Sending the first frame to the third station includes: The first frame is sent to the third station before the start time of the TXOP held by the first station.
8. The method according to any one of claims 1-4, characterized in that, The first frame is carried in any of the following channels: 2.4G channel, 5G channel, 6G channel, or millimeter wave channel.
9. The method according to any one of claims 1-4, characterized in that, The method further includes: A third frame is sent to the third station, the third frame being used to instruct the adjustment of the time during which the third station is prohibited from sending the second signal to the first station.
10. The method according to claim 9, wherein the third frame comprises at least one of the following: the start time of the adjusted first time, the duration of the adjusted first time, and the end time of the adjusted first time, wherein, The first time is the time during which the third station is prohibited from sending the second signal to the first station.
11. The method according to any one of claims 1-4, characterized in that, The first frame also includes an identifier for the first sector and / or an identifier for the first antenna, which are used to determine whether the third station is prohibited from sending the second signal to the first station during the time indicated by the first frame.
12. The method according to any one of claims 1-4, characterized in that, The method further includes: A fourth frame is received from the third station, the fourth frame being used to indicate that the third station has received the first frame.
13. An information transmission method, characterized in that, Applied to a third site, the method includes: Receive a first frame from a first station, the first frame being used to indicate the time during which the third station is prohibited from sending a second signal to the first station, the first frame being determined based on the time used by the first station to send a first signal to the second station; Determine whether to prohibit the transmission of the second signal to the first station within the time indicated by the first frame.
14. The method according to claim 13, characterized in that, The first frame includes information at a first time and / or at a second time, wherein the first time is the time during which the third station is prohibited from sending the second signal to the first station, and the second time is the time during which the third station is allowed to send the second signal to the first station.
15. The method according to claim 14, characterized in that, The information of the first time includes at least one of the following: the start time of the first time, the duration of the first time, and the end time of the first time.
16. The method according to claim 14, characterized in that, The information of the second time includes at least one of the following: the start time of the second time, the duration of the second time, and the end time of the second time.
17. The method according to any one of claims 13-16, characterized in that, The third station sending the second signal to the first station includes: the third station sending the second signal to the first station non-triggering.
18. The method according to any one of claims 13-16, characterized in that, Receiving the first frame from the first station includes: At the start of the transmission opportunity TXOP held by the first site, the first frame is received from the first site.
19. The method according to any one of claims 13-16, characterized in that, Receiving the first frame from the first station includes: Before the start time of the TXOP held by the first station, the first frame is received from the first station.
20. The method according to any one of claims 13-16, characterized in that, The first frame is carried in any of the following channels: 2.4G channel, 5G channel, 6G channel, or millimeter wave channel.
21. The method according to any one of claims 13-16, characterized in that, The method further includes: A third frame is received from the first station, the third frame being used to instruct the adjustment of the time during which the third station is prohibited from sending the second signal to the first station.
22. The method according to claim 21, characterized in that, The third frame includes at least one of the following: the start time of the adjusted first time, the duration of the adjusted first time, and the end time of the adjusted first time, wherein the first time is the time during which the third station is prohibited from sending the second signal to the first station.
23. The method according to any one of claims 13-16, characterized in that, The first frame also includes an identifier for the first sector and / or an identifier for the first antenna; determining whether to prohibit the transmission of the second signal to the first station within the time indicated by the first frame includes: If the third station is currently within the first sector, and / or the antenna used by the third station when sending the second signal to the first station is the first antenna, it is determined that sending the second signal to the first station is prohibited during the time indicated by the first frame.
24. The method according to any one of claims 13-16, characterized in that, The method further includes: A fourth frame is received from the third station, the fourth frame being used to indicate that the third station has received the first frame.
25. A communication device, characterized in that, include: Memory and processor; Memory and processor are coupled; The memory is used to store instructions that can be executed by the processor; When the processor executes the instructions, it performs the method as described in any one of claims 1-24.
26. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores computer instructions that, when executed on a computer, cause the computer to perform the method as described in any one of claims 1-24.
27. A computer program product, characterized in that, The computer program product includes computing technology program instructions that, when executed by a processor, implement the method as described in any one of claims 1-24.