Data relay transmission method, access point equipment, relay equipment and station equipment

Abstract

The embodiment of the invention relates to a data relay transmission method, access point equipment, relay equipment and station equipment. The data relay transmission method is applied to access point equipment, and comprises the following steps: determining a first trigger frame in a transmission opportunity TXOP; wherein the first trigger frame is used for triggering at least one of the following operations: triggering a candidate relay device to measure a channel quality parameter according to the first trigger frame and feed back a channel quality report to an access point device; triggering the station equipment to send a channel measurement frame to the candidate relay equipment; triggering the candidate relay device to send a channel measurement frame to the station device; and sending the first trigger frame to ensure that a relay transmission mode is superior to a direct link transmission mode, so as to optimize the data transmission process and meet the transmission requirement of the UHR.

Description

Data relay transmission method, access point device, relay device and site device Technical Field

[0001] The present disclosure relates to the field of communication technology, and in particular to a data relay transmission method, an access point device, a relay device, and a site device. Background Art

[0002] Currently, Wi-Fi technology research focuses on Ultra High Reliability (UHR), with the goal of improving the reliability of Wireless Local Area Networks (WLAN) connections, reducing latency, improving manageability, increasing throughput at different signal-to-noise ratio (SNR) levels, and reducing device-level power consumption.

[0003] In UHR, low-latency service transmission mechanisms will be further enhanced to support multi-connection scenarios. To improve throughput at different signal-to-noise ratio (SNR) levels, data relay may be used in UHR to transmit data frames. Therefore, further improvement of the data relay transmission mechanism is needed.

[0004] Summary of the Invention

[0005] The embodiments of the present disclosure provide a data relay transmission method, an access point device, a relay device, and a site device to further improve the data relay transmission mechanism.

[0006] In one aspect, an embodiment of the present disclosure provides a data relay transmission method, applied to an access point device, the method comprising:

[0007] In a transmission opportunity TXOP, a first trigger frame is determined; wherein the first trigger frame is used to trigger at least one of the following operations:

[0008] Triggering the candidate relay device to measure the channel quality parameter according to the first trigger frame and feeding back a channel quality report to the access point device; triggering the site device to send a channel measurement frame to the candidate relay device; triggering the candidate relay device to send a channel measurement frame to the site device;

[0009] Send the first trigger frame.

[0010] On the other hand, an embodiment of the present disclosure further provides a data relay transmission method, which is applied to a candidate relay device, and the method includes:

[0011] Receive a first trigger frame; wherein the first trigger frame is used to trigger at least one of the following operations:

[0012] Trigger the candidate relay device to measure the channel quality parameter according to the first trigger frame and feed back a channel quality report to the access point device; trigger the site device to send a channel measurement frame to the candidate relay device; trigger the candidate relay device to send a channel measurement frame to the site device.

[0013] On the other hand, an embodiment of the present disclosure further provides a data relay transmission method, applied to a site device, the method comprising:

[0014] Receive a first trigger frame; wherein the first trigger frame is used to trigger at least one of the following operations:

[0015] Trigger the candidate relay device to measure the channel quality parameter according to the first trigger frame and feed back a channel quality report to the access point device; trigger the site device to send a channel measurement frame to the candidate relay device; trigger the candidate relay device to send a channel measurement frame to the site device.

[0016] On the other hand, an embodiment of the present disclosure further provides an access point device, the access point device comprising:

[0017] A determination module is configured to determine a first trigger frame within a transmission opportunity TXOP, wherein the first trigger frame is used to trigger at least one of the following operations:

[0018] Triggering the candidate relay device to measure the channel quality parameter according to the first trigger frame and feeding back a channel quality report to the access point device; triggering the site device to send a channel measurement frame to the candidate relay device; triggering the candidate relay device to send a channel measurement frame to the site device;

[0019] A sending module is used to send the first trigger frame.

[0020] On the other hand, an embodiment of the present disclosure further provides a relay device, wherein the relay device is a candidate relay device, and the candidate relay device includes:

[0021] The first receiving module is configured to receive a first trigger frame, wherein the first trigger frame is configured to trigger at least one of the following operations:

[0022] Trigger the candidate relay device to measure the channel quality parameter according to the first trigger frame and feed back a channel quality report to the access point device; trigger the site device to send a channel measurement frame to the candidate relay device; trigger the candidate relay device to send a channel measurement frame to the site device.

[0023] On the other hand, an embodiment of the present disclosure further provides a site device, the site device including:

[0024] The second receiving module is configured to receive a first trigger frame, wherein the first trigger frame is configured to trigger at least one of the following operations:

[0025] Trigger the candidate relay device to measure the channel quality parameter according to the first trigger frame and feed back a channel quality report to the access point device; trigger the site device to send a channel measurement frame to the candidate relay device; trigger the candidate relay device to send a channel measurement frame to the site device.

[0026] On the other hand, an embodiment of the present disclosure further provides an access point device, including:

[0027] one or more processors;

[0028] The access point device is used to implement the data relay transmission method described in the embodiment of the present disclosure.

[0029] On the other hand, an embodiment of the present disclosure further provides a site device, including:

[0030] one or more processors;

[0031] The relay device is used to implement the data relay transmission method described in the embodiment of the present disclosure.

[0032] On the other hand, an embodiment of the present disclosure further provides a site device, including:

[0033] one or more processors;

[0034] The site device is used to execute the data relay transmission method described in the embodiment of the present disclosure.

[0035] An embodiment of the present disclosure further provides a communication system, including an access point device, a relay device, and a site device; wherein the access point device is configured to implement the data relay transmission method described in the embodiment of the present disclosure, the relay device is configured to implement the data relay transmission method described in the embodiment of the present disclosure, and the site device is configured to implement the data relay transmission method described in the embodiment of the present disclosure.

[0036] The embodiment of the present disclosure further provides a storage medium storing instructions. When the instructions are executed on a communication device, the communication device executes the data relay transmission method as described in the embodiment of the present disclosure.

[0037] In the embodiment of the present disclosure, in the uplink relay scenario and the downlink relay scenario, the access point device can obtain the channel quality of the relay link respectively through the first trigger frame, compare the channel quality of the relay link with the channel quality of the direct link, and select the candidate relay device whose two relay link channel qualities are higher than the direct link channel quality as the final relay device to complete the data relay transmission, ensuring that the transmission method through the relay is better than the transmission method through the direct link, thereby optimizing the data transmission process and meeting the transmission requirements of the UHR.

[0038] Additional aspects and advantages of the embodiments of the present disclosure will be given in part in the following description, which will become apparent from the following description or be learned through practice of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the following drawings required for describing the embodiments are introduced. The following drawings are merely some embodiments of the present disclosure and do not impose specific limitations on the protection scope of the present disclosure.

[0040] FIG1 is an exemplary schematic diagram of the architecture of a communication system provided according to an embodiment of the present disclosure;

[0041] FIG2 is an exemplary interaction diagram of a method provided according to an embodiment of the present disclosure;

[0042] FIG3 is one of the exemplary schematic diagrams provided by an embodiment of the present disclosure;

[0043] FIG4 is one of the exemplary schematic diagrams provided in an embodiment of the present disclosure;

[0044] FIG5 is a second exemplary schematic diagram provided by an embodiment of the present disclosure;

[0045] FIG6 is a flow chart of a data relay transmission method according to an embodiment of the present disclosure;

[0046] FIG7 is a flowchart of a data relay transmission method according to an embodiment of the present disclosure;

[0047] FIG8 is a third flow chart of the data relay transmission method provided in an embodiment of the present disclosure;

[0048] FIG9 is a schematic structural diagram of an access point device proposed in an embodiment of the present disclosure;

[0049] FIG10 is a schematic structural diagram of a relay device proposed in an embodiment of the present disclosure;

[0050] FIG11 is a schematic diagram of the structure of a site device proposed in an embodiment of the present disclosure;

[0051] FIG12 is a schematic structural diagram of a terminal proposed in an embodiment of the present disclosure;

[0052] FIG13 is a schematic diagram of the structure of a chip proposed in an embodiment of the present disclosure. DETAILED DESCRIPTION

[0053] The embodiments of the present disclosure provide a data relay transmission method, an access point device, a relay device, and a station device.

[0054] In a first aspect, an embodiment of the present disclosure provides a data relay transmission method, which is applied to an access point device. The method includes:

[0055] In a transmission opportunity TXOP, a first trigger frame is determined; wherein the first trigger frame is used to trigger at least one of the following operations:

[0056] Triggering the candidate relay device to measure the channel quality parameter according to the first trigger frame and feeding back a channel quality report to the access point device; triggering the site device to send a channel measurement frame to the candidate relay device; triggering the candidate relay device to send a channel measurement frame to the site device;

[0057] Send the first trigger frame.

[0058] In the above embodiment, the channel quality of the relay link is obtained respectively through the first trigger frame, and the channel quality of the relay link is compared with the channel quality of the direct link. The candidate relay devices whose channel quality of the two relay links is higher than the channel quality of the direct link are selected as the final relay devices to complete the data relay transmission, ensuring that the transmission method through the relay is better than the transmission method through the direct link, thereby optimizing the data transmission process and meeting the transmission requirements of the UHR.

[0059] In conjunction with some embodiments of the first aspect, in some embodiments, the first trigger frame includes at least one of the following:

[0060] Device identifier of the candidate relay device;

[0061] Equipment identification of the site equipment;

[0062] Transmission bandwidth information of the channel measurement frame;

[0063] Channel quality parameters, including CSI and / or RSSI;

[0064] NSS quantity information;

[0065] The MCS mode of the channel measurement frame.

[0066] In the above embodiment, the parameter information carried by the first trigger frame is clarified, a method for discovering a relay device is provided, and the data relay transmission mechanism is improved.

[0067] In conjunction with some embodiments of the first aspect, in some embodiments, before determining the first trigger frame within a transmission opportunity TXOP, the method includes:

[0068] Receive a relay device discovery frame sent by the site device.

[0069] In the above embodiment, the station device triggers the access point device to initiate an uplink relay device discovery process through the relay device discovery frame.

[0070] In conjunction with some embodiments of the first aspect, in some embodiments, after sending the first trigger frame, the method further includes:

[0071] Determine a second trigger frame; wherein the second trigger frame is used to trigger at least one of the following operations:

[0072] Triggering the candidate relay device to feed back a channel quality report to the access point device;

[0073] Triggering the site device to feed back a channel quality report to the access point device;

[0074] Triggering the candidate relay device to forward the channel quality report sent by the site device;

[0075] Triggering the site device to forward the channel quality report sent by the candidate relay device;

[0076] Send the second trigger frame.

[0077] In the above embodiment, the second trigger frame is used to trigger the site device and the relay device to feedback the channel quality report, so that the access point device can obtain the channel quality of the relay link respectively. According to the comparison between the channel quality of the relay link and the channel quality of the direct link, the candidate relay device whose two relay link channel qualities are both higher than the channel quality of the direct link is selected as the final relay device to complete the data relay transmission.

[0078] In conjunction with some embodiments of the first aspect, in some embodiments, the second trigger frame includes at least one of the following:

[0079] Device identifier of the candidate relay device;

[0080] The device ID of the site device.

[0081] In the above embodiment, the parameter information carried by the second trigger frame is clarified, a method for discovering a relay device is provided, and the data relay transmission mechanism is improved.

[0082] In conjunction with some embodiments of the first aspect, in some embodiments, the method further includes:

[0083] determining a relay device from the candidate relay devices according to the channel quality report;

[0084] Channel qualities of a first relay link between the relay device and the access point device and a second relay link between the relay device and the station device are higher than channel quality of a direct link between the access point device and the station device.

[0085] In the above embodiment, after the access point device obtains the channel quality of the relay link respectively, it compares the channel quality of the relay link with the channel quality of the direct link, and selects the candidate relay device whose two relay link channel qualities are both higher than the channel quality of the direct link as the final relay device to complete the data relay transmission.

[0086] In conjunction with some embodiments of the first aspect, in some embodiments, after determining the relay device from the candidate relay devices according to the channel quality report, the method further includes:

[0087] After obtaining TXOP, send MU-RTS TXS frame to the relay device;

[0088] or

[0089] After obtaining the TXOP, the device identification of the relay device is sent to the site device.

[0090] In the above embodiment, after obtaining the TXOP, the access point device allocates the obtained TXOP to the relay device or station device through the MU-RTS TXS trigger frame, so that the relay device or station device performs non-TB data transmission or P2P data transmission.

[0091] After obtaining the TXOP, the access point device may also send the device identification of the relay device, such as the AID or MAC address of the relay device, to the station device, so that the station device can identify the relay device and perform relay transmission.

[0092] In a second aspect, an embodiment of the present disclosure provides a data relay transmission method, which is applied to a candidate relay device. The method includes:

[0093] Receive a first trigger frame; wherein the first trigger frame is used to trigger at least one of the following operations:

[0094] Trigger the candidate relay device to measure the channel quality parameter according to the first trigger frame and feed back a channel quality report to the access point device; trigger the site device to send a channel measurement frame to the candidate relay device; trigger the candidate relay device to send a channel measurement frame to the site device.

[0095] In conjunction with some embodiments of the second aspect, in some embodiments, after receiving the first trigger frame, the method further includes at least one of the following:

[0096] measuring a channel quality parameter according to the first trigger frame and feeding back a channel quality report to the access point device;

[0097] Send a channel measurement frame to the site device.

[0098] In conjunction with some embodiments of the second aspect, in some embodiments, the method further includes:

[0099] receiving a channel measurement frame sent by the site device;

[0100] Send a channel quality report to the site device.

[0101] In conjunction with some embodiments of the second aspect, in some embodiments, after receiving the first trigger frame, the method further includes:

[0102] Receive a second trigger frame; wherein the second trigger frame is used to trigger at least one of the following operations:

[0103] Triggering the candidate relay device to feed back a channel quality report to the access point device;

[0104] Triggering the site device to feed back a channel quality report to the access point device;

[0105] Triggering the candidate relay device to forward the channel quality report sent by the site device;

[0106] The site device is triggered to forward the channel quality report sent by the candidate relay device.

[0107] In conjunction with some embodiments of the second aspect, in some embodiments, after receiving the second trigger frame, the method further includes:

[0108] Feedback a channel quality report to the access point device;

[0109] Forward the channel quality report sent by the site device.

[0110] In a third aspect, an embodiment of the present disclosure further provides a data relay transmission method, applied to a site device, the method comprising:

[0111] Receive a first trigger frame; wherein the first trigger frame is used to trigger at least one of the following operations:

[0112] Trigger the candidate relay device to measure the channel quality parameter according to the first trigger frame and feed back a channel quality report to the access point device; trigger the site device to send a channel measurement frame to the candidate relay device; trigger the candidate relay device to send a channel measurement frame to the site device.

[0113] In conjunction with some embodiments of the third aspect, in some embodiments, after receiving the first trigger frame, the method further includes at least one of the following:

[0114] measuring a channel quality parameter according to the first trigger frame and feeding back a channel quality report to the access point device;

[0115] Send a channel measurement frame to the candidate relay device.

[0116] In conjunction with some embodiments of the third aspect, in some embodiments, the method further includes:

[0117] receiving a channel measurement frame sent by the candidate relay device;

[0118] Sending a channel quality report to the candidate relay device.

[0119] In conjunction with some embodiments of the third aspect, in some embodiments, after receiving the first trigger frame, the method further includes:

[0120] Receive a second trigger frame; wherein the second trigger frame is used to trigger at least one of the following operations:

[0121] Triggering the candidate relay device to feed back a channel quality report to the access point device;

[0122] Triggering the site device to feed back a channel quality report to the access point device;

[0123] Triggering the candidate relay device to forward the channel quality report sent by the site device;

[0124] The site device is triggered to forward the channel quality report sent by the candidate relay device.

[0125] In conjunction with some embodiments of the third aspect, in some embodiments, after receiving the second trigger frame, the method further includes:

[0126] Feedback a channel quality report to the access point device;

[0127] Forwarding the channel quality report sent by the candidate relay device.

[0128] In a fourth aspect, an embodiment of the present disclosure further provides an access point device, comprising at least one of a determination module and a sending module; wherein the access point device is configured to execute the optional implementation of the first aspect.

[0129] In a fifth aspect, an embodiment of the present disclosure further provides a relay device, comprising: a first receiving module; wherein the above-mentioned relay device is used to execute the optional implementation method of the second aspect.

[0130] In a sixth aspect, an embodiment of the present disclosure further provides a site device, comprising: a second receiving module; wherein the above-mentioned site device is used to execute the optional implementation method of the third aspect.

[0131] In a seventh aspect, an embodiment of the present disclosure further provides an access point device, including:

[0132] one or more processors;

[0133] The access point device is used to execute the optional implementation of the first aspect.

[0134] In an eighth aspect, an embodiment of the present disclosure further provides a relay device, including:

[0135] one or more processors;

[0136] The relay device is used to execute the optional implementation of the second aspect.

[0137] In a ninth aspect, an embodiment of the present disclosure further provides a site device, including:

[0138] one or more processors;

[0139] The site device is used to execute the optional implementation of the third aspect.

[0140] In the tenth aspect, an embodiment of the present disclosure further provides a communication system, comprising an access point device and a relay device; wherein the access point device is configured to perform the optional implementation method as described in the first aspect, the relay device is configured as the optional implementation method as described in the second aspect, and the site device is configured as the optional implementation method as described in the third aspect.

[0141] In the eleventh aspect, an embodiment of the present disclosure further provides a storage medium storing instructions, which, when executed on a communication device, enables the communication device to execute the optional implementation methods described in the first, second, and third aspects.

[0142] In the twelfth aspect, an embodiment of the present disclosure proposes a program product. When the program product is executed by a communication device, the communication device executes the method described in the optional implementation of the first aspect, the second aspect, and the third aspect.

[0143] In a thirteenth aspect, an embodiment of the present disclosure proposes a computer program, which, when executed on a computer, enables the computer to execute the method described in the optional implementation of the first, second, and third aspects.

[0144] In a fourteenth aspect, an embodiment of the present disclosure provides a chip or a chip system, which includes a processing circuit configured to execute the method described in the optional implementation of the first, second, and third aspects above.

[0145] It is understandable that the aforementioned access point devices, relay devices, station devices, communication systems, storage media, program products, computer programs, chips, or chip systems are all used to perform the methods proposed in the embodiments of the present disclosure. Therefore, the beneficial effects that can be achieved can refer to the beneficial effects of the corresponding methods and will not be repeated here.

[0146] The present disclosure provides a data relay transmission method, an access point device, a relay device, a station device, and a communication system. In some embodiments, the terms data relay transmission method, signal transmission method, wireless frame transmission method, etc. are interchangeable, and the terms information processing system, communication system, etc. are interchangeable.

[0147] The embodiments of the present disclosure are not exhaustive and are merely illustrative of some embodiments, and are not intended to be a specific limitation on the scope of protection of the present disclosure. In the absence of contradiction, each step in a certain embodiment can be implemented as an independent embodiment, and the steps can be arbitrarily combined. For example, a solution after removing some steps in a certain embodiment can also be implemented as an independent embodiment, and the order of the steps in a certain embodiment can be arbitrarily exchanged. In addition, the optional implementation methods in a certain embodiment can be arbitrarily combined; in addition, the embodiments can be arbitrarily combined. For example, some or all steps of different embodiments can be arbitrarily combined, and a certain embodiment can be arbitrarily combined with the optional implementation methods of other embodiments.

[0148] In each embodiment of the present disclosure, unless otherwise specified or provided for by logic, the terms and / or descriptions between the embodiments are consistent and can be referenced by each other. The technical features in different embodiments can be combined to form a new embodiment based on their inherent logical relationships.

[0149] The terms used in the embodiments of the present disclosure are only for the purpose of describing specific embodiments and are not intended to limit the present disclosure.

[0150] In the embodiments of the present disclosure, “plurality” refers to two or more.

[0151] In some embodiments, the terms "at least one," "one or more," "a plurality of," "multiple," etc. may be used interchangeably.

[0152] In some embodiments, descriptions such as "at least one of A and B," "A and / or B," "A in one case, B in another case," or "in response to one case A, in response to another case B" may include the following technical solutions depending on the situation: in some embodiments, A (A is executed independently of B); in some embodiments, B (B is executed independently of A); in some embodiments, execution is selected from A and B (A and B are selectively executed); and in some embodiments, A and B (both A and B are executed). The above is also applicable when there are more branches such as A, B, and C.

[0153] In some embodiments, "A or B" and other descriptions may include the following technical solutions depending on the situation: in some embodiments, A (A is executed independently of B); in some embodiments, B (B is executed independently of A); in some embodiments, execution is selected from A and B (A and B are selectively executed). The above is also applicable when there are more branches such as A, B, C, etc.

[0154] The prefixes such as "first" and "second" in the embodiments of the present disclosure are only used to distinguish different description objects and do not constitute any restriction on the position, order, priority, quantity or content of the description objects. For the statement of the description object, please refer to the description in the context of the claims or embodiments, and no unnecessary restriction should be constituted due to the use of prefixes. For example, if the description object is a "field", the ordinal number before the "field" in the "first field" and the "second field" does not limit the position or order between the "fields". "First" and "second" do not limit whether the "fields" they modify are in the same message, nor do they limit the order of the "first field" and the "second field". For another example, if the description object is a "level", the ordinal number before the "level" in the "first level" and the "second level" does not limit the priority between the "levels". For another example, the number of description objects is not limited by the ordinal number and can be one or more. Taking "first device" as an example, the number of "devices" can be one or more. In addition, the objects modified by different prefixes can be the same or different. For example, if the description object is "device", then the "first device" and the "second device" can be the same device or different devices, and their types can be the same or different; for another example, if the description object is "information", then the "first information" and the "second information" can be the same information or different information, and their contents can be the same or different.

[0155] In some embodiments, “including A,” “comprising A,” “used to indicate A,” and “carrying A” can be interpreted as directly carrying A or indirectly indicating A.

[0156] In some embodiments, terms such as "in response to...", "in response to determining...", "in the case of...", "at the time of...", "when...", "if...", "if...", etc. can be used interchangeably.

[0157] In some embodiments, terms such as "greater than", "greater than or equal to", "not less than", "more than", "more than or equal to", "not less than", "higher than", "higher than or equal to", "not less than", and "above" can be replaced with each other, and terms such as "less than", "less than or equal to", "not greater than", "less than", "less than or equal to", "not more than", "lower than", "lower than or equal to", "not higher than", and "below" can be replaced with each other.

[0158] In some embodiments, devices and equipment can be interpreted as physical or virtual, and their names are not limited to the names recorded in the embodiments. In some cases, they can also be understood as "equipment", "device", "circuit", "network element", "node", "function", "unit", "section", "system", "network", "chip", "chip system", "entity", "subject", etc.

[0159] In some embodiments, obtaining data, information, etc. may comply with the laws and regulations of the country where the data is obtained.

[0160] In some embodiments, data, information, etc. may be obtained with the user's consent.

[0161] In addition, each element, each row, or each column in the table of the embodiment of the present disclosure can be implemented as an independent embodiment, and the combination of any elements, any rows, and any columns can also be implemented as an independent embodiment.

[0162] FIG1 is a schematic diagram showing the architecture of a communication system according to an embodiment of the present disclosure.

[0163] As shown in FIG1 , a communication system 100 includes an access point (AP) 101 , a relay device 102 (including candidate relay devices and relay devices), and a station (STA) 103 .

[0164] In some embodiments, the site device 101 and the relay device 102 include, for example, a wireless communication chip, a wireless sensor, or a wireless communication terminal that supports WiFi communication. Optionally, the wireless communication terminal may be, for example, a mobile phone, a wearable device, an Internet of Things device that supports WiFi communication, a car with WiFi communication, a smart car, a tablet computer, a computer with wireless transceiver function, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal device in industrial control, a wireless terminal device in self-driving, a wireless terminal device in remote medical surgery, a wireless terminal device in a smart grid, a wireless terminal device in transportation safety, a wireless terminal device in a smart city, or a wireless terminal device in a smart home, but is not limited thereto.

[0165] Specifically, the station device 101 may be a terminal device or network device equipped with a wireless fidelity (WiFi) chip. Optionally, the station device 101 may support multiple WLAN standards, such as 802.11ax, 802.11be, 802.11ac, 802.11n, 802.11g, 802.11b, 802.11a, 802.11bf, and 802.11bn, as well as the next generation 802.11 protocol, but is not limited thereto.

[0166] In some embodiments, access point device 101 and relay device 102 may be access points for mobile terminals to access wired networks. An AP acts as a bridge between wired and wireless networks, connecting wireless network clients and then connecting the wireless network to the Ethernet. Specifically, an AP may be a terminal device or network device equipped with a wireless fidelity chip. Optionally, the AP may support multiple WLAN standards, including 802.11ax, 802.11be, 802.11ac, 802.11n, 802.11g, 802.11b, 802.11a, 802.11bf, and 802.11bn, as well as support for the next generation 802.11 protocol, but is not limited thereto.

[0167] Optionally, in an embodiment of the present disclosure, the AP and STA may be devices supporting multiple connections, for example, they may be represented as a multi-connection access point device (AP MLD) and a multi-connection site device (Non-Access Point Multi-Link Device, Non-AP MLD), respectively; the AP MLD may represent an access point supporting multi-connection communication functions, and the non-AP MLD may represent a site supporting multi-connection communication functions.

[0168] It can be understood that the communication system described in the embodiment of the present disclosure is for the purpose of more clearly illustrating the technical solution of the embodiment of the present disclosure, and does not constitute a limitation on the technical solution proposed in the embodiment of the present disclosure. Ordinary technicians in this field can know that with the evolution of the system architecture and the emergence of new business scenarios, the technical solution proposed in the embodiment of the present disclosure is also applicable to similar technical problems.

[0169] The following embodiments of the present disclosure may be applied to the communication system 100 shown in FIG1 , or a portion thereof, but are not limited thereto. The entities shown in FIG1 are illustrative only. The communication system may include all or part of the entities shown in FIG1 , or may include other entities outside of FIG1 . The number and form of the entities are arbitrary, and the entities may be physical or virtual. The connection relationships between the entities are illustrative only. The entities may be connected or disconnected, and the connection may be in any manner, including direct or indirect, wired or wireless.

[0170] The various embodiments of the present disclosure can be applied to wireless local area networks (WLANs), such as those using the 802.11 series of protocols. In a WLAN, a Basic Service Set (BSS) is a fundamental component of a WLAN. A BSS network consists of station devices with some association within a specific coverage area. One scenario of association is that stations communicate directly with each other in an ad hoc network, which is called an Independent Basic Service Set (IBSS). Another more common scenario is that in a BSS network, there is only one central station dedicated to managing the BSS, called an access point, and all other STAs in the network are associated with it. Other stations in the BSS network that are not the central station are called terminals, also called non-AP STAs. Terminals and non-AP STAs are collectively referred to as STAs. When describing STAs, there is no need to distinguish between APs and non-AP STAs. In the same BSS network, due to distance, transmission power, and other factors, a STA cannot detect other STAs that are farther away from it, and the two STAs are each other's hidden nodes.

[0171] FIG2 is an interactive diagram of a data relay transmission method according to an embodiment of the present disclosure. As shown in FIG2 , the method includes:

[0172] In step 201, the access point device 101 determines a first trigger frame within a transmission opportunity TXOP; wherein the first trigger frame is used to trigger at least one of the following operations:

[0173] Trigger the candidate relay device to measure the channel quality parameter according to the first trigger frame and feed back a channel quality report to the access point device; trigger the site device to send a channel measurement frame to the candidate relay device; trigger the candidate relay device to send a channel measurement frame to the site device.

[0174] In UHR, in order to achieve high-quality data transmission at different Signal to Interference and Noise Ratio (SINR) levels (levels Rate-vs-Range), a relay transmission method may be used to transmit data frames; as an example, referring to Figure 3, during data relay transmission, the source device (Source, or sending device) transmits the relay data frame to the relay device (Relay) through a relay connection (Relay Link, such as Relay Link 1 in Figure 3); after the relay device performs necessary address padding on the relay data frame, it forwards the relay data frame to the destination device (Destination, or receiving device) through a relay connection (such as Relay Link 2 in Figure 3); in addition, the source device can also transmit data frames between the source device and the destination device via a direct connection (Direct Link). In the embodiment of the present disclosure, the relay end can also be an AP; for ease of explanation, STA will be used as the relay end in the following introduction, but this does not constitute a limitation to the embodiment of the present disclosure. In addition, relay transmission can also be divided into uplink transmission and downlink transmission. For example, in an uplink transmission scenario, the source and relay devices are STAs, and the destination device is an AP. That is, within a transmission opportunity (TXOP), the STA sends a data frame to the relay STA, which then forwards the data frame to the destination AP. In a downlink transmission scenario, the source device is the AP, and the relay and destination devices are STAs. Within a TXOP, the AP sends a data frame to the relay STA, which then forwards it to the destination STA.

[0175] In an embodiment of the present disclosure, during data relay transmission, to improve transmission stability and reliability, an access point device determines a first trigger frame within a TXOP; the first trigger frame is used to trigger at least one of the following operations 1 to 3:

[0176] Operation 1: triggering the candidate relay device to measure the channel quality parameters according to the first trigger frame and to feed back a channel quality report to the access point device; as shown in Figure 4, for example, in a downlink relay scenario, the access point device acts as a source device and sends a first trigger frame to the candidate relay device through Relay Link 1, triggering the candidate relay device to measure the channel quality parameters according to the first trigger frame and to feed back a channel quality report to the access point device; in an embodiment of the present disclosure, the channel quality parameters are, for example, at least one of channel state information (CSI) and received signal strength indicator (RSSI): after receiving the first trigger frame, the candidate relay device may measure and record the CSI and / or RSSI of the first trigger frame, and feed back a channel quality report to the access point device, so that the access point device obtains the channel quality of Relay Link 1.

[0177] As another example, as shown in Figure 5, in the uplink relay scenario, the access point device acts as the destination device and sends a first trigger frame to the relay device through Relay Link 2. The relay device is triggered to measure the channel quality parameters based on the first trigger frame and feed back a channel quality report to the access point device, thereby obtaining the channel quality of Relay Link 2.

[0178] Operation 2: Trigger the site device to send a channel measurement frame to the candidate relay device; wherein, the site device may send a channel measurement frame to multiple relay devices one-to-one. It can be understood that in the embodiment of the present disclosure, the channel measurement frame can be a frame dedicated to measuring the channel, such as a Null Data Packet (NDP), or it can reuse data frames or control frames with other functions. The embodiment of the present disclosure does not limit the specific form of the channel measurement frame, as long as it can be used for channel measurement. The first trigger frame triggers the site device to send a channel measurement frame to the candidate relay device, so that the candidate relay device measures the channel quality of one of the Relay Links according to the channel measurement frame, and sends the channel quality report to the access point device or forwards it to the access point device through the candidate relay device, so that the access point device can obtain the channel quality of the Relay Link.

[0179] As shown in Figure 4, for example, in a downlink relay scenario, the access point device acts as a source device and sends a first trigger frame to the site device via Direct Link, triggering the site device to send a channel measurement frame to the candidate relay device. The candidate relay device measures the channel quality of Relay Link 2 based on the channel measurement frame and sends a channel quality report to the access point device or forwards it to the access point device via the candidate relay device, so that the access point device can obtain the channel quality of Relay Link 2.

[0180] As another example, as shown in Figure 5, in the uplink relay scenario, the access point device acts as the destination device and sends a first trigger frame to the site device via Direct Link, triggering the site device to send a channel measurement frame to the candidate relay device, so that the candidate relay device measures the channel quality of Relay Link 1 according to the channel measurement frame, and sends the channel quality report to the access point device or forwards it to the access point device through the candidate relay device, so that the access point device can obtain the channel quality of Relay Link 1.

[0181] Operation 3: Trigger the candidate relay device to send a channel measurement frame to the site device. The first trigger frame triggers the candidate relay device to send a channel measurement frame to the site device. The site device measures the channel quality of one of the relay links based on the channel measurement frame and sends a channel quality report to the access point device or forwards it to the access point device through the site device. The access point device then obtains the channel quality of the relay link.

[0182] As shown in Figure 4, for example, in a downlink relay scenario, the access point device acts as a source device and sends a first trigger frame to the candidate relay device through Relay Link 1, triggering the candidate relay device to send a channel measurement frame to the site device. The site device measures the channel quality of Relay Link 2 based on the channel measurement frame and sends the channel quality report to the access point device or forwards it to the access point device through the site device, so that the access point device can obtain the channel quality of Relay Link 2.

[0183] As another example, as shown in Figure 5, in the uplink relay scenario, the access point device acts as the destination device and sends a first trigger frame to the candidate relay device through Relay Link 2, triggering the candidate relay device to send a channel measurement frame to the site device, so that the site device measures the channel quality of Relay Link 1 according to the channel measurement frame, and sends the channel quality report to the access point device or forwards it to the access point device through the site device, so that the access point device can obtain the channel quality of Relay Link 1.

[0184] In this way, in the uplink relay scenario and the downlink relay scenario, the access point device can trigger the combination of operation 1 and operation 3, or the combination of operation 1 and operation 3, through the first trigger frame, to obtain the channel quality of Relay Link 1 and Relay Link 2 respectively. Based on the comparison of the channel quality of Relay Link 1 and Relay Link 2 with the channel quality of Direct Link, the candidate relay device whose two Relay Link channel qualities are both higher than the Direct Link channel quality is selected as the final relay device to complete the data relay transmission, ensuring that the method of transmission through relay is superior to the method of transmission through the direct link, thereby optimizing the data transmission process and meeting the transmission requirements of UHR.

[0185] Step 202: The access point device 101 sends a first trigger frame to the candidate relay device and / or station device.

[0186] The access point device may send a first trigger frame to the candidate relay device and the site device respectively, triggering the two to perform channel quality measurement in response to the first trigger frame.

[0187] In some embodiments, the first trigger frame includes at least one of the following:

[0188] A device identifier of the candidate relay device; for example, an Association Identifier (AID) or a Media Access Control (MAC) address of the candidate relay device, which is used to uniquely identify the candidate relay device;

[0189] Device identifier of the site device, such as the AID or MAC address of the site device, which is used to uniquely identify the site device;

[0190] The transmission bandwidth information of the channel measurement frame is used by the candidate relay device or the site device to send the channel measurement frame according to the transmission bandwidth information;

[0191] Channel quality parameters, including CSI and / or RSSI;

[0192] Number of spatial streams (NSS) information, such as the number of NSSs in the first trigger frame or the number of NSSs in the channel measurement frame;

[0193] The channel measurement frame includes a modulation and coding scheme (MCS) mode, where the MCS mode includes the number of spatial streams, a modulation mode, and a transmit power.

[0194] In some embodiments, before determining the first trigger frame within a transmission opportunity TXOP, the method includes:

[0195] Step 200: Receive a relay device discovery frame sent by the site device.

[0196] Among them, in the uplink relay scenario, the site device acts as a source device and can actively send a relay device discovery frame to the AP, so that after receiving the relay device discovery frame, the AP determines the first wireless frame in response to the relay device discovery frame to screen target candidate devices for the site device.

[0197] In some embodiments, after sending the first trigger frame, the method further includes:

[0198] Step 203: Determine a second trigger frame; wherein the second trigger frame is used to trigger at least one of the following operations 4 to 7:

[0199] Operation 4: triggering the candidate relay device to feed back a channel quality report to the access point device;

[0200] Operation 5: triggering the station device to feed back a channel quality report to the access point device;

[0201] Operation 6: Triggering the candidate relay device to forward the channel quality report sent by the site device;

[0202] Operation 7: Triggering the site device to forward the channel quality report sent by the candidate relay device;

[0203] Step 204: Send the second trigger frame.

[0204] The second trigger frame is, for example, a report trigger frame.

[0205] In operation 4, the second trigger frame triggers the candidate relay device to feedback a channel quality report to the access point device. The feedback channel quality report may be measured by the candidate relay device, such as the channel quality report in the aforementioned operation 1, or the channel quality report measured by the candidate relay device in the aforementioned operation 2.

[0206] In operation 5, the second trigger frame triggers the site device to feed back a channel quality report to the access point device. The fed-back channel quality report may be measured by the site device, such as the channel quality report measured by the site device in the aforementioned operation 3.

[0207] In operation 6, the second trigger frame triggers the candidate relay device to forward the channel quality report sent by the site device. The channel quality report forwarded by the candidate relay device is measured by the site device, such as the channel quality report measured by the site device in the aforementioned operation 3.

[0208] In operation 7, the second trigger frame triggers the site device to forward the channel quality report sent by the candidate relay device. The channel quality report forwarded by the site device is measured by the candidate relay device, such as the channel quality report measured by the site device in the aforementioned operations 1 and 2.

[0209] In some embodiments, the second trigger frame includes at least one of the following:

[0210] A device identifier of the candidate relay device; for example, an AID or MAC address of the candidate relay device, used to uniquely identify the candidate relay device;

[0211] The device identifier of the site device, such as the AID or MAC address of the site device, is used to uniquely identify the site device.

[0212] In some embodiments, the method further comprises:

[0213] Step 205: Determine a relay device from the candidate relay devices based on the channel quality report;

[0214] Channel qualities of a first relay link between the relay device and the access point device and a second relay link between the relay device and the station device are higher than channel quality of a direct link between the access point device and the station device.

[0215] In the uplink relay scenario and the downlink relay scenario, the access point device can obtain the channel quality of Relay Link 1 and Relay Link 2 by sending a first trigger frame and a second trigger frame respectively. Based on the channel quality of the first relay link (for example, Relay Link 1 in Figure 3) and the second relay link (for example, Relay Link 2 in Figure 3) and the channel quality of the Direct Link, the candidate relay device whose two Relay Link channel qualities are both higher than the Direct Link channel quality is selected as the final relay device to complete the data relay transmission, ensuring that the relay transmission method is superior to the direct link transmission method, thereby optimizing the data transmission process and meeting the transmission requirements of the UHR.

[0216] It is understandable that, when there are multiple candidate relay devices that meet the above requirements, the access point device may select the candidate relay device with the highest channel quality of the two relay links as the relay device.

[0217] In some embodiments, after determining a relay device from the candidate relay devices based on the channel quality report, the method further includes:

[0218] Step 206: After obtaining the TXOP, send a MU-RTS TXS frame to the relay device;

[0219] or

[0220] Step 207: After obtaining the TXOP, the device identification of the relay device is sent to the site device.

[0221] Among them, in the data relay scenario, after the access point device obtains the TXOP, it allocates the obtained TXOP to the relay device or station device through the Multi User-Request to Send TXOP sharing (MU-RTS TXS) trigger frame, which is used by the relay device or station device to perform non-trigger-based (Non-TB) data transmission or peer-to-peer (P2P) data transmission.

[0222] In addition, in the uplink relay scenario, after obtaining the TXOP, the access point device sends the device identification of the relay device, such as the AID or MAC address of the relay device, to the station device, so that the station device can identify the relay device and perform relay transmission.

[0223] In the disclosed embodiment, in the uplink relay scenario and the downlink relay scenario, the access point device can obtain the channel quality of Relay Link 1 and Relay Link 2 through the first trigger frame and the second trigger frame respectively. Based on the comparison of the channel quality of Relay Link 1 and Relay Link 2 with the channel quality of Direct Link, the candidate relay device whose two Relay Link channel qualities are both higher than the Direct Link channel quality is selected as the final relay device to complete data relay transmission, thereby ensuring that the method of transmission via relay is superior to the method of transmission via direct link, thereby optimizing the data transmission process and meeting the transmission requirements of UHR.

[0224] In some embodiments, the names of information, etc. are not limited to the names described in the embodiments, and terms such as "information", "message", "signal", "signaling", "report", "configuration", "indication", "instruction", "command", "channel", "parameter", "domain", "field", "symbol", "codepoint", "bit", "data", "program", and "chip" can be used interchangeably.

[0225] In some embodiments, terms such as "moment", "time point", "time", and "time position" can be replaced with each other, and terms such as "duration", "period", "time window", "window", and "time" can be replaced with each other.

[0226] In some embodiments, terms such as wireless access scheme and waveform may be used interchangeably.

[0227] In some embodiments, terms such as "certain", "preset", "preset", "setting", "indicated", "a certain", "any", and "first" can be interchangeable. "Specific A", "preset A", "preset A", "setting A", "indicated A", "a certain A", "any A", and "first A" can be interpreted as A pre-specified in a protocol, etc., or as A obtained through setting, configuration, or indication, etc., or as specific A, a certain A, any A, or first A, etc., but not limited to this.

[0228] In some embodiments, the determination or judgment can be performed by a value represented by 1 bit (0 or 1), or by a true or false value (Boolean value) represented by true or false, or by comparison of numerical values ​​(for example, comparison with a predetermined value), but is not limited thereto.

[0229] In some embodiments, "not expecting to receive" can be interpreted as not receiving on time domain resources and / or frequency domain resources, or as not performing subsequent processing on the data after receiving it; "not expecting to send" can be interpreted as not sending, or as sending but not expecting the recipient to respond to the content sent.

[0230] The data relay transmission method involved in the embodiments of the present disclosure may include at least one of the aforementioned steps and embodiments. For example, step 201 can be implemented as an independent embodiment, step 200 can be implemented as an independent embodiment, step 203 can be implemented as an independent embodiment, step 205 can be implemented as an independent embodiment, step 206 can be implemented as an independent embodiment, and step 207 can be implemented as an independent embodiment; the combination of step 201 and step 202 can be implemented as an independent embodiment, the combination of step 200 and step 201 can be implemented as an independent embodiment, and the combination of step 203 and step 204 can be implemented as an independent embodiment, but are not limited thereto.

[0231] In some embodiments, reference may be made to other optional implementations described before or after the description corresponding to FIG. 2 to FIG. 5 .

[0232] FIG6 is a flowchart of a data relay transmission method according to an embodiment of the present disclosure.

[0233] As shown in FIG6 , the above method may be applied to an access point device 101, and the above method includes:

[0234] Step 601: Determine a first trigger frame within a transmission opportunity TXOP; wherein the first trigger frame is used to trigger at least one of the following operations:

[0235] Triggering the candidate relay device to measure the channel quality parameter according to the first trigger frame and feeding back a channel quality report to the access point device; triggering the site device to send a channel measurement frame to the candidate relay device; triggering the candidate relay device to send a channel measurement frame to the site device;

[0236] Step 602: Send the first trigger frame.

[0237] Optionally, in an embodiment of the present disclosure, the first trigger frame includes at least one of the following:

[0238] Device identifier of the candidate relay device;

[0239] Equipment identification of the site equipment;

[0240] Transmission bandwidth information of the channel measurement frame;

[0241] Channel quality parameters, including channel state information CSI and / or received signal strength indication RSSI;

[0242] Spatial stream NSS number information;

[0243] The modulation and coding strategy MCS mode of the channel measurement frame.

[0244] Optionally, in the embodiment of the present disclosure, before determining the first trigger frame within a transmission opportunity TXOP, the method includes:

[0245] Step 600: Receive a relay device discovery frame sent by the site device.

[0246] Optionally, in the embodiment of the present disclosure, after sending the first trigger frame, the method further includes:

[0247] Step 603: Determine a second trigger frame; wherein the second trigger frame is used to trigger at least one of the following operations:

[0248] Triggering the candidate relay device to feed back a channel quality report to the access point device;

[0249] Triggering the site device to feed back a channel quality report to the access point device;

[0250] Triggering the candidate relay device to forward the channel quality report sent by the site device;

[0251] Triggering the site device to forward the channel quality report sent by the candidate relay device;

[0252] Step 604: Send the second trigger frame.

[0253] Optionally, in an embodiment of the present disclosure, the second trigger frame includes at least one of the following:

[0254] Device identifier of the candidate relay device;

[0255] The device ID of the site device.

[0256] Optionally, in the embodiment of the present disclosure, the method further includes:

[0257] determining a relay device from the candidate relay devices according to the channel quality report;

[0258] Channel qualities of a first relay link between the relay device and the access point device and a second relay link between the relay device and the station device are higher than channel quality of a direct link between the access point device and the station device.

[0259] Optionally, in the embodiment of the present disclosure, after determining the relay device from the candidate relay devices according to the channel quality report, the method further includes:

[0260] Step 605: After obtaining the TXOP, a multi-user request to send transmission opportunity sharing MU-RTS TXS frame is sent to the relay device;

[0261] or

[0262] Step 606: After obtaining the TXOP, the device identification of the relay device is sent to the site device.

[0263] The data relay transmission method involved in the embodiments of the present disclosure may include at least one of the aforementioned steps and embodiments. For example, step 601 can be implemented as an independent embodiment, step 600 can be implemented as an independent embodiment, step 603 can be implemented as an independent embodiment, step 605 can be implemented as an independent embodiment, step 606 can be implemented as an independent embodiment, and step 607 can be implemented as an independent embodiment; the combination of step 601 and step 602 can be implemented as an independent embodiment, the combination of step 600 and step 601 can be implemented as an independent embodiment, and the combination of step 603 and step 604 can be implemented as an independent embodiment, but are not limited thereto.

[0264] In some embodiments, reference may be made to other optional implementations described before or after the description corresponding to FIG. 6 .

[0265] FIG7 is a flowchart of a data relay transmission method according to an embodiment of the present disclosure.

[0266] As shown in FIG7 , the above method may be applied to a relay device (a candidate relay device) 102, and the above method includes:

[0267] Step 701: Receive a first trigger frame; wherein the first trigger frame is used to trigger at least one of the following operations:

[0268] Trigger the candidate relay device to measure the channel quality parameter according to the first trigger frame and feed back a channel quality report to the access point device; trigger the site device to send a channel measurement frame to the candidate relay device; trigger the candidate relay device to send a channel measurement frame to the site device.

[0269] Optionally, in the embodiment of the present disclosure, after receiving the first trigger frame, the method further includes at least one of the following:

[0270] Step 702: Measure channel quality parameters according to the first trigger frame and feed back a channel quality report to the access point device;

[0271] Step 703: Send a channel measurement frame to the site device.

[0272] Optionally, in the embodiment of the present disclosure, the method further includes:

[0273] Step 704: receiving a channel measurement frame sent by the site device;

[0274] Step 705: Send a channel quality report to the site device.

[0275] Optionally, in the embodiment of the present disclosure, after receiving the first trigger frame, the method further includes:

[0276] Step 706: Receive a second trigger frame; wherein the second trigger frame is used to trigger at least one of the following operations:

[0277] Triggering the candidate relay device to feed back a channel quality report to the access point device;

[0278] Triggering the site device to feed back a channel quality report to the access point device;

[0279] Triggering the candidate relay device to forward the channel quality report sent by the site device;

[0280] The site device is triggered to forward the channel quality report sent by the candidate relay device.

[0281] Optionally, in the embodiment of the present disclosure, after receiving the second trigger frame, the method further includes:

[0282] Step 707: Feedback a channel quality report to the access point device;

[0283] Step 708: forward the channel quality report sent by the site equipment

[0284] The data relay transmission method involved in the embodiments of the present disclosure may include at least one of the aforementioned steps and embodiments. For example, step 701 can be implemented as an independent embodiment, step 702 can be implemented as an independent embodiment, step 703 can be implemented as an independent embodiment, and step 706 can be implemented as an independent embodiment; the combination of step 701 and step 702 can be implemented as an independent embodiment, the combination of step 701 and step 703 can be implemented as an independent embodiment, the combination of step 704 and step 705 can be implemented as an independent embodiment, and the combination of step 707 and step 708 can be implemented as an independent embodiment, but is not limited thereto.

[0285] In some embodiments, reference may be made to other optional implementations described before or after the description corresponding to FIG. 7 .

[0286] FIG8 is a flowchart of a data relay transmission method according to an embodiment of the present disclosure.

[0287] As shown in FIG8 , the above method may be applied to the site device 103, and the above method includes:

[0288] Step 801: Receive a first trigger frame; wherein the first trigger frame is used to trigger at least one of the following operations:

[0289] Trigger the candidate relay device to measure the channel quality parameter according to the first trigger frame and feed back a channel quality report to the access point device; trigger the site device to send a channel measurement frame to the candidate relay device; trigger the candidate relay device to send a channel measurement frame to the site device.

[0290] Optionally, in the embodiment of the present disclosure, after receiving the first trigger frame, the method further includes at least one of the following:

[0291] Step 802: Measure channel quality parameters according to the first trigger frame and feed back a channel quality report to the access point device;

[0292] Step 803: Send a channel measurement frame to the candidate relay device.

[0293] Optionally, in the embodiment of the present disclosure, the method further includes:

[0294] Step 804: receiving a channel measurement frame sent by the candidate relay device;

[0295] Step 805: Send a channel quality report to the candidate relay device.

[0296] Optionally, in the embodiment of the present disclosure, after receiving the first trigger frame, the method further includes:

[0297] Step 806: Receive a second trigger frame; wherein the second trigger frame is used to trigger at least one of the following operations:

[0298] Triggering the candidate relay device to feed back a channel quality report to the access point device;

[0299] Triggering the site device to feed back a channel quality report to the access point device;

[0300] Triggering the candidate relay device to forward the channel quality report sent by the site device;

[0301] The site device is triggered to forward the channel quality report sent by the candidate relay device.

[0302] Optionally, in the embodiment of the present disclosure, after receiving the second trigger frame, the method further includes:

[0303] Step 807: Feedback a channel quality report to the access point device;

[0304] Step 808: Forward the channel quality report sent by the candidate relay device.

[0305] The data relay transmission method involved in the embodiments of the present disclosure may include at least one of the aforementioned steps and embodiments. For example, step 801 can be implemented as an independent embodiment, step 802 can be implemented as an independent embodiment, step 803 can be implemented as an independent embodiment, and step 806 can be implemented as an independent embodiment; the combination of step 801 and step 802 can be implemented as an independent embodiment, the combination of step 801 and step 803 can be implemented as an independent embodiment, the combination of step 804 and step 805 can be implemented as an independent embodiment, and the combination of step 807 and step 808 can be implemented as an independent embodiment, but is not limited thereto.

[0306] In some embodiments, reference may be made to other optional implementations described before or after the description corresponding to FIG. 8 .

[0307] The embodiments of the present disclosure further provide an apparatus for implementing any of the above methods. For example, an apparatus is provided, comprising units or modules for implementing each step performed by a terminal in any of the above methods. For another example, another apparatus is provided, comprising units or modules for implementing each step performed by a network device (e.g., an access network device, a core network function node, a core network device, etc.) in any of the above methods.

[0308] It should be understood that the division of the various units or modules in the above device is merely a division of logical functions. In actual implementation, they may be fully or partially integrated into a physical entity, or they may be physically separated. In addition, the units or modules in the device may be implemented in the form of a processor calling software: for example, the device includes a processor, the processor is connected to a memory, and the memory stores instructions. The processor calls the instructions stored in the memory to implement any of the above methods or implement the functions of the various units or modules of the above device, wherein the processor is, for example, a general-purpose processor, such as a central processing unit (CPU) or a microprocessor, and the memory is a memory within the device or a memory outside the device. Alternatively, the units or modules in the device can be implemented in the form of hardware circuits, and the functions of some or all of the units or modules can be realized by designing the hardware circuits. The above-mentioned hardware circuits can be understood as one or more processors; for example, in one implementation, the above-mentioned hardware circuit is an application-specific integrated circuit (ASIC), which realizes the functions of some or all of the above units or modules by designing the logical relationship of the components in the circuit; for example, in another implementation, the above-mentioned hardware circuit can be realized by a programmable logic device (PLD). Taking a field programmable gate array (FPGA) as an example, it can include a large number of logic gate circuits, and the connection relationship between the logic gate circuits is configured by a configuration file, thereby realizing the functions of some or all of the above units or modules. All units or modules of the above devices can be implemented in the form of software called by the processor, or in the form of hardware circuits, or in part by software called by the processor, and the rest by hardware circuits.

[0309] In the embodiment of the present disclosure, the processor is a circuit with signal processing capability. In one implementation, the processor can be a circuit with instruction reading and execution capability, such as a central processing unit (CPU), a microprocessor, a graphics processing unit (GPU) (which can be understood as a microprocessor), or a digital signal processor (DSP); in another implementation, the processor can implement certain functions through the logical relationship of the hardware circuit, and the logical relationship of the above hardware circuit is fixed or reconfigurable, such as a hardware circuit implemented by a processor as an application-specific integrated circuit (ASIC) or a programmable logic device (PLD), such as an FPGA. In a reconfigurable hardware circuit, the process of the processor loading a configuration document and implementing the hardware circuit configuration can be understood as the process of the processor loading instructions to implement the functions of some or all of the above units or modules. In addition, it can also be a hardware circuit designed for artificial intelligence, which can be understood as an ASIC, such as a neural network processing unit (NPU), a tensor processing unit (TPU), a deep learning processing unit (DPU), etc.

[0310] FIG9 is a schematic diagram of the structure of an access point device proposed in an embodiment of the present disclosure. As shown in FIG9 , the access point device 900 may include at least one of: a determination module 901 , a sending module 902 , and the like.

[0311] In some embodiments, the determining module 901 is configured to determine a first trigger frame within a transmission opportunity TXOP; wherein the first trigger frame is configured to trigger at least one of the following operations:

[0312] Triggering the candidate relay device to measure the channel quality parameter according to the first trigger frame and feeding back a channel quality report to the access point device; triggering the site device to send a channel measurement frame to the candidate relay device; triggering the candidate relay device to send a channel measurement frame to the site device;

[0313] The sending module 902 is configured to send the first trigger frame.

[0314] Optionally, the determining module 901 is configured to execute at least one of the communication steps (eg, step 201 and step 601, but not limited thereto) executed by the access point device 101 in any of the above methods, which will not be described in detail herein.

[0315] FIG10 is a schematic diagram of the structure of a relay device according to an embodiment of the present disclosure. As shown in FIG10 , the relay device 1000 may include: a first receiving module 1001 .

[0316] In some embodiments, the first receiving module 1001 is configured to receive a first trigger frame; wherein the first trigger frame is configured to trigger at least one of the following operations:

[0317] Trigger the candidate relay device to measure the channel quality parameter according to the first trigger frame and feed back a channel quality report to the access point device; trigger the site device to send a channel measurement frame to the candidate relay device; trigger the candidate relay device to send a channel measurement frame to the site device.

[0318] Optionally, the first receiving module 1001 is configured to execute at least one of the communication steps (eg, step 701 ) executed by the relay device 102 in any of the above methods, which will not be described in detail herein.

[0319] FIG11 is a schematic diagram of the structure of a station device according to an embodiment of the present disclosure. As shown in FIG10 , the station device 1100 may include: a second receiving module 1101 .

[0320] In some embodiments, the second receiving module 1101 is configured to receive a first trigger frame; wherein the first trigger frame is configured to trigger at least one of the following operations:

[0321] Trigger the candidate relay device to measure the channel quality parameter according to the first trigger frame and feed back a channel quality report to the access point device; trigger the site device to send a channel measurement frame to the candidate relay device; trigger the candidate relay device to send a channel measurement frame to the site device.

[0322] Optionally, the second receiving module 1101 is configured to execute at least one of the communication steps (eg, step 801 ) executed by the relay device 102 in any of the above methods, which will not be described in detail here.

[0323] Figure 12 is a schematic diagram of the structure of a terminal 1200 (e.g., user equipment) proposed in an embodiment of the present disclosure. Terminal 1200 can be a chip, chip system, or processor that supports a network device implementing any of the above methods, or a chip, chip system, or processor that supports a terminal implementing any of the above methods. Terminal 1200 can be used to implement the methods described in the above method embodiments. For details, please refer to the description of the above method embodiments.

[0324] As shown in Figure 12, terminal 1200 includes one or more processors 1201. Processor 1201 can be a general-purpose processor or a dedicated processor, for example, a baseband processor or a central processing unit. The baseband processor can be used to process communication protocols and communication data, and the central processing unit can be used to control communication devices (such as base stations, baseband chips, terminal devices, terminal device chips, DUs or CUs, etc.), execute programs, and process program data. Terminal 1200 is used to perform any of the above methods.

[0325] In some embodiments, the terminal 1200 further includes one or more memories 1202 for storing instructions. Optionally, all or part of the memories 1202 may be located outside the terminal 1200.

[0326] In some embodiments, the terminal 1200 further includes one or more transceivers 1204. When the terminal 1200 includes one or more transceivers 1204, the transceiver 1204 performs at least one of the communication steps such as sending and / or receiving in the above method (for example, step 202, step 200, step 204, step 205, step 206, step 207, step 602, step 600, step 604, step 605, step 606, step 701, step 703, step 704, step 705, step 706, step 707, step 708, step 801, step 803, step 804, step 805, step 806, step 807, and step 808, but not limited thereto), and the processor 1201 performs at least one of the other steps (for example, step 201, step 203, step 205, step 601, step 603, step 702, and step 802, but not limited thereto).

[0327] In some embodiments, a transceiver may include a receiver and / or a transmitter. The receiver and transmitter may be separate or integrated. Optionally, the terms transceiver, transceiver unit, transceiver, and transceiver circuit may be used interchangeably; the terms transmitter, transmitting unit, transmitter, and transmitting circuit may be used interchangeably; and the terms receiver, receiving unit, receiver, and receiving circuit may be used interchangeably.

[0328] In some embodiments, terminal 1200 may include one or more interface circuits 1203. Optionally, interface circuit 1203 is connected to memory 1202. Interface circuit 1203 may be configured to receive signals from memory 1202 or other devices, and may be configured to send signals to memory 1202 or other devices. For example, interface circuit 1203 may read instructions stored in memory 1202 and send the instructions to processor 1201.

[0329] The terminal 1200 described in the above embodiment may be a communication device such as a user device, but the scope of the terminal 1200 described in the present disclosure is not limited thereto, and the structure of the terminal 1200 may not be limited by FIG. 12 . The communication device may be an independent device or may be part of a larger device. For example, the communication device may be: (1) an independent integrated circuit IC, or a chip, or a chip system or subsystem; (2) a collection of one or more ICs, optionally, the above IC collection may also include a storage component for storing data and programs; (3) an ASIC, such as a modem; (4) a module that can be embedded in other devices; (5) a receiver, a terminal device, an intelligent terminal device, a cellular phone, a wireless device, a handheld device, a mobile unit, an in-vehicle device, a network device, a cloud device, an artificial intelligence device, etc.; (6) others, etc.

[0330] FIG13 is a schematic diagram of the structure of a chip 1300 according to an embodiment of the present disclosure. In the case where the terminal 1200 may be a chip or a chip system, reference may be made to the schematic diagram of the structure of the chip 1300 shown in FIG13 , but the present disclosure is not limited thereto.

[0331] The chip 1300 includes one or more processors 1301 , and the chip 1300 is configured to execute any of the above methods.

[0332] In some embodiments, chip 1300 further includes one or more 1303. Optionally, interface circuit 1303 is connected to memory 1302. Interface circuit 1303 can be used to receive signals from memory 1302 or other devices, and interface circuit 1303 can be used to send signals to memory 1302 or other devices. For example, interface circuit 1303 can read instructions stored in memory 1302 and send the instructions to processor 1301.

[0333] In some embodiments, the interface circuit 1303 executes at least one of the communication steps such as sending and / or receiving in the above method (for example, step 202, step 200, step 204, step 205, step 206, step 207, step 602, step 600, step 604, step 605, step 606, step 701, step 703, step 704, step 705, step 706, step 707, step 708, step 801, step 803, step 804, step 805, step 806, step 807, step 808, but not limited to these), and the processor 1301 executes at least one of the other steps (for example, step 201, step 203, step 205, step 601, step 603, step 702, step 802, but not limited to these).

[0334] In some embodiments, terms such as interface circuit, interface, transceiver pin, and transceiver may be used interchangeably.

[0335] In some embodiments, chip 1300 also includes one or more memories 1302 for storing instructions. Alternatively, all or part of memory 1302 may be external to chip 1300.

[0336] The present disclosure also provides a storage medium having instructions stored thereon. When the instructions are executed on the terminal 1200, the terminal 1200 executes any of the above methods. Optionally, the storage medium is an electronic storage medium. Optionally, the storage medium is a computer-readable storage medium, but is not limited thereto and may also be a storage medium readable by other devices. Optionally, the storage medium may be a non-transitory storage medium, but is not limited thereto and may also be a transient storage medium.

[0337] The present disclosure also provides a program product, which, when executed by the terminal 1200, enables the terminal 1200 to perform any of the above methods. Optionally, the program product is a computer program product.

[0338] The present disclosure also proposes a computer program, which, when executed on a computer, causes the computer to perform any one of the above methods.

Claims

1. A data relay transmission method, applied to an access point device, characterized in that: The method comprises: In a transmission opportunity TXOP, a first trigger frame is determined; wherein the first trigger frame is used to trigger at least one of the following operations: Trigger the candidate relay device to measure the channel quality parameter according to the first trigger frame and feed back a channel quality report to the access point device; trigger the site device to send a channel measurement frame to the candidate relay device; trigger the candidate relay device to send a channel measurement frame to the site device; Send the first trigger frame.

2. The data relay transmission method according to claim 1, characterized in that: The first trigger frame includes at least one of the following: The device identifier of the candidate relay device; Equipment identification of the site equipment; Transmission bandwidth information of the channel measurement frame; Channel quality parameters, including channel state information CSI and / or received signal strength indication RSSI; Spatial stream NSS quantity information; The modulation and coding strategy MCS mode of the channel measurement frame.

3. The data relay transmission method according to claim 1, characterized in that: The method comprises: Receive a relay device discovery frame sent by the site device.

4. The data relay transmission method according to claim 1, characterized in that: After sending the first trigger frame, the method further includes: Determine a second trigger frame; wherein the second trigger frame is used to trigger at least one of the following operations: Triggering the candidate relay device to feed back a channel quality report to the access point device; Triggering the site device to feed back a channel quality report to the access point device; Triggering the candidate relay device to forward the channel quality report sent by the site device; Triggering the site device to forward the channel quality report sent by the candidate relay device; Send the second trigger frame.

5. The data relay transmission method according to claim 4, characterized in that: The second trigger frame includes at least one of the following: The device identifier of the candidate relay device; The device ID of the site device.

6. The data relay transmission method according to claim 4, characterized in that: The method further comprises: Determining a relay device from the candidate relay devices according to the channel quality report; The channel quality of the first relay link between the relay device and the access point device and the second relay link between the relay device and the site device is higher than the channel quality of the direct link between the access point device and the site device.

7. The data relay transmission method according to claim 6, characterized in that: After determining the relay device from the candidate relay devices according to the channel quality report, the method further includes: After obtaining the TXOP, a multi-user request to send transmission opportunity sharing MU-RTS TXS frame is sent to the relay device; or After obtaining the TXOP, the device identification of the relay device is sent to the site device.

8. A data relay transmission method, applied to a candidate relay device, characterized in that: The method comprises: Receive a first trigger frame; wherein the first trigger frame is used to trigger at least one of the following operations: Trigger the candidate relay device to measure the channel quality parameter according to the first trigger frame and feed back a channel quality report to the access point device; trigger the site device to send a channel measurement frame to the candidate relay device; trigger the candidate relay device to send a channel measurement frame to the site device.

9. The data relay transmission method according to claim 8, characterized in that: After receiving the first trigger frame, the method further includes at least one of the following: Measuring a channel quality parameter according to the first trigger frame and feeding back a channel quality report to the access point device; Send a channel measurement frame to the site device.

10. The data relay transmission method according to claim 8 or 9, characterized in that: The method further comprises: receiving a channel measurement frame sent by the site device; Send channel quality reports to site devices.

11. The data relay transmission method according to claim 8, characterized in that: After receiving the first trigger frame, the method further includes: Receive a second trigger frame; wherein the second trigger frame is used to trigger at least one of the following operations: Triggering the candidate relay device to feed back a channel quality report to the access point device; Triggering the site device to feed back a channel quality report to the access point device; Triggering the candidate relay device to forward the channel quality report sent by the site device; The site device is triggered to forward the channel quality report sent by the candidate relay device.

12. The data relay transmission method according to claim 11, characterized in that: After receiving the second trigger frame, the method further includes: Feedback a channel quality report to the access point device; Forward the channel quality report sent by the site device.

13. A data relay transmission method, applied to a site device, characterized in that: The method comprises: Receive a first trigger frame; wherein the first trigger frame is used to trigger at least one of the following operations: Trigger the candidate relay device to measure the channel quality parameter according to the first trigger frame and feed back a channel quality report to the access point device; trigger the site device to send a channel measurement frame to the candidate relay device; trigger the candidate relay device to send a channel measurement frame to the site device.

14. The data relay transmission method according to claim 13, characterized in that: After receiving the first trigger frame, the method further includes at least one of the following: Measuring a channel quality parameter according to the first trigger frame and feeding back a channel quality report to the access point device; Send a channel measurement frame to the candidate relay device.

15. The data relay transmission method according to claim 13 or 14, characterized in that: The method further comprises: Receiving a channel measurement frame sent by the candidate relay device; Sending a channel quality report to the candidate relay device.

16. The data relay transmission method according to claim 13, characterized in that: After receiving the first trigger frame, the method further includes: Receive a second trigger frame; wherein the second trigger frame is used to trigger at least one of the following operations: Triggering the candidate relay device to feed back a channel quality report to the access point device; Triggering the site device to feed back a channel quality report to the access point device; Triggering the candidate relay device to forward the channel quality report sent by the site device; The site device is triggered to forward the channel quality report sent by the candidate relay device.

17. The data relay transmission method according to claim 16, characterized in that: After receiving the second trigger frame, the method further includes: Feedback a channel quality report to the access point device; Forwarding the channel quality report sent by the candidate relay device.

18. An access point device, characterized in that: The access point device comprises: A determination module is used to determine a first trigger frame in a transmission opportunity TXOP; wherein the first trigger frame is used to trigger at least one of the following operations: Trigger the candidate relay device to measure the channel quality parameter according to the first trigger frame and feed back a channel quality report to the access point device; trigger the site device to send a channel measurement frame to the candidate relay device; trigger the candidate relay device to send a channel measurement frame to the site device; A sending module is used to send the first trigger frame.

19. A relay device, characterized in that: The relay device is a candidate relay device, and the candidate relay device includes: The first receiving module is configured to receive a first trigger frame; wherein the first trigger frame is configured to trigger at least one of the following operations: Trigger the candidate relay device to measure the channel quality parameter according to the first trigger frame and feed back a channel quality report to the access point device; trigger the site device to send a channel measurement frame to the candidate relay device; trigger the candidate relay device to send a channel measurement frame to the site device.

20. A site device, characterized in that: The site equipment includes: The second receiving module is configured to receive a first trigger frame; wherein the first trigger frame is configured to trigger at least one of the following operations: Trigger the candidate relay device to measure the channel quality parameter according to the first trigger frame and feed back a channel quality report to the access point device; trigger the site device to send a channel measurement frame to the candidate relay device; trigger the candidate relay device to send a channel measurement frame to the site device.

21. A storage medium storing instructions, characterized in that: When the instruction is executed on the communication device, the communication device executes the data relay transmission method as described in any one of claims 1 to 7, or executes the data relay transmission method as described in any one of claims 8 to 12, or executes the data relay transmission method as described in any one of claims 13 to 17.

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