Communication method, communication device, and communication system
By sending CTS frames under the eMLSR link to identify the service transmission time of other wireless communication media, the site equipment and access point equipment isolate the services of Wi-Fi communication services from other wireless communication media, solving the interference problem in Wi-Fi communication and improving system throughput and reliability.
Patent Information
- Application Number
- PCT/CN2024/070148
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2024-01-02
- Publication Date
- 2025-07-10
AI Technical Summary
In Wi-Fi communication, service interference from other wireless communication media leads to increased communication delay and reduced throughput, and the prior art has failed to effectively avoid such interference.
Site devices and access point devices can identify the service transmission time of other wireless communication media by sending CTS frames under the eMLSR link, isolate the services of Wi-Fi communication services from other wireless communication media, and avoid interference.
It effectively reduces the interference of burst communications of other wireless communication media to Wi-Fi communication, improves the system throughput, and meets the transmission needs of ultra-high reliability (UHR).
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Figure CN2024070148_10072025_PF_FP_ABST
Abstract
Description
Communication method, communication equipment and communication system Technical Field
[0001] The present disclosure relates to the field of communication technology, and in particular to a communication method, communication equipment, and communication system. 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, when a device is performing Wi-Fi communication, services on other wireless communication media may also be present. If there is communication interference from other wireless communication media, it will affect the current normal communication and increase communication latency. Therefore, it is necessary to provide a method to prevent Wi-Fi communication services from being interfered with by services on other wireless communication media.
[0004] Summary of the Invention
[0005] Embodiments of the present disclosure provide a communication method, a communication device, and a communication system to provide a way to prevent Wi-Fi communication services from being interfered with by services of other wireless communication media.
[0006] In one aspect, an embodiment of the present disclosure provides a communication method, the method comprising:
[0007] The station device receives an initial control frame in a first link of an enhanced multi-link single radio (eMLSR) link negotiated with an access point device, and determines to clear sending a CTS frame based on the presence of communication services of other wireless communication media that need to be transmitted by the station device in the first link; wherein the station device supports multi-link communication;
[0008] The CTS frame is sent under the first link.
[0009] On the other hand, an embodiment of the present disclosure further provides a communication method, the method comprising:
[0010] The access point device sends an initial control frame under the first link of the eMLSR link negotiated with the site device;
[0011] A CTS frame is received under the first link; wherein the CTS frame is sent by the station device based on the need to transmit a communication service of other wireless communication media under the first link.
[0012] On the other hand, an embodiment of the present disclosure further provides a communication device, wherein the communication device is a site device, and the site device includes:
[0013] a determining module, configured to, upon receiving an initial control frame in a first link of an enhanced multi-link single radio (eMLSR) link negotiated with an access point device, determine to clear sending a CTS frame based on the presence of communication services of other wireless communication media that need to be transmitted by the station device in the first link; wherein the station device supports multi-link communication;
[0014] The first sending module is configured to send the CTS frame under the first link.
[0015] On the other hand, an embodiment of the present disclosure further provides a communication device, wherein the communication device is an access point device, and the access point device includes:
[0016] A second sending module is configured to send an initial control frame under a first link of the eMLSR link negotiated with the site device;
[0017] The receiving module is configured to receive a CTS frame under the first link; wherein the CTS frame is sent by the site device based on the need to transmit a communication service of other wireless communication media under the first link.
[0018] On the other hand, an embodiment of the present disclosure further provides a communication device, wherein the communication device is a site device, including:
[0019] one or more processors;
[0020] The site device is used to execute the communication method described in the embodiment of the present disclosure.
[0021] On the other hand, an embodiment of the present disclosure further provides a communication device, wherein the communication device is an access point device, including:
[0022] one or more processors;
[0023] The access point device is used to implement the communication method described in the embodiment of the present disclosure.
[0024] An embodiment of the present disclosure further provides a communication system, including a site device and an access point device; wherein the site device is configured to implement the communication method described in the embodiment of the present disclosure, and the access point device is configured to implement the communication method described in the embodiment of the present disclosure.
[0025] 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 communication method as described in the embodiment of the present disclosure.
[0026] 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
[0027] 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.
[0028] FIG1 is an exemplary schematic diagram of the architecture of a communication system provided according to an embodiment of the present disclosure;
[0029] FIG2 is one of exemplary interaction diagrams of a method provided according to an embodiment of the present disclosure;
[0030] FIG3 is a second exemplary interaction diagram of a method provided according to an embodiment of the present disclosure;
[0031] FIG4 is a third exemplary interaction diagram of a method provided according to an embodiment of the present disclosure;
[0032] FIG5 is a flow chart of a communication method according to an embodiment of the present disclosure;
[0033] FIG6 is a second flow chart of the communication method provided in an embodiment of the present disclosure;
[0034] FIG7 is a schematic diagram of the structure of a site device proposed in an embodiment of the present disclosure;
[0035] FIG8 is a schematic structural diagram of an access point device proposed in an embodiment of the present disclosure;
[0036] FIG9 is a schematic diagram of the structure of a terminal proposed in an embodiment of the present disclosure;
[0037] FIG10 is a schematic diagram of the structure of a chip proposed in an embodiment of the present disclosure. DETAILED DESCRIPTION
[0038] The embodiments of the present disclosure provide a communication method, a communication device, and a communication system.
[0039] In a first aspect, an embodiment of the present disclosure provides a communication method, the method comprising:
[0040] The station device receives an initial control frame in a first link of an enhanced multi-link single radio (eMLSR) link negotiated with an access point device, and determines to clear sending a CTS frame based on the presence of communication services of other wireless communication media that need to be transmitted by the station device in the first link; wherein the station device supports multi-link communication;
[0041] The CTS frame is sent under the first link.
[0042] In the above embodiment, the station device receives an initial control frame sent by the access point device on any eMLSR link. If services on other wireless communication media exist on the receiving link, the station device uses a CTS frame to indicate that services on other wireless communication media need to be transmitted on the first link, and sends the CTS frame on the first link. This can temporally isolate Wi-Fi services from services on other wireless communication media to prevent interference between the two, thereby reducing interference caused by bursty communications on other wireless communication media on Wi-Fi communications, improving system throughput, and meeting UHR transmission requirements.
[0043] In conjunction with some embodiments of the first aspect, in some embodiments, the duration field or the newly defined field of the CTS frame is set to a first parameter value, indicating that the station device has communication services of other wireless communication media that need to be transmitted under the first link;
[0044] The CTS frame includes a transmission time for transmitting the communication service of the other wireless communication medium, and the transmission time indicates that the access point device can send the initial control frame again after the transmission time.
[0045] In the above embodiment, if the station device has services of other wireless communication media under the receiving link, the duration field of the CTS frame can be set to the first parameter value, and the CTS frame can be set to carry the transmission time of the communication services of other wireless communication media, thereby instructing the access point device to send the initial control frame after the transmission time, thereby avoiding interference of other communication services with the current communication services during the transmission time.
[0046] In conjunction with some embodiments of the first aspect, in some embodiments, after sending the CTS frame, the method further includes:
[0047] After the transmission time, the initial control frame is received in the first link.
[0048] In the above embodiment, after the transmission time, the initial control frame sent by the access point device is received under the first link, and the current service communication with the access point device is carried out to realize data interaction and meet the UHR transmission requirements.
[0049] In conjunction with some embodiments of the first aspect, in some embodiments, the CTS frame includes a first control field;
[0050] The first control field includes link information of the eMLSR link, and the link information is set to a second parameter value, indicating that uplink and downlink wireless Wi-Fi communications can be performed under the corresponding eMLSR link.
[0051] In the above embodiment, if the site device has services of other wireless communication media under the receiving link, the CTS frame can also be set to carry a first control field, where the first control field includes link information of the eMLSR link, and the link information is set to the second parameter value, indicating that uplink and downlink wireless Wi-Fi communications can be performed under the corresponding eMLSR link, so that the access point device can perform wireless Wi-Fi communication with the site device under other links other than the receiving link of the site device, thereby reducing the interference of burst communications of other wireless communication media on Wi-Fi communication, improving the system throughput, and making it suitable for the transmission requirements of UHR.
[0052] In conjunction with some embodiments of the first aspect, in some embodiments, the eMLSR link whose link information is set to the second parameter value is a target eMLSR link, and the target eMLSR link includes one or more;
[0053] The target eMLSR link and the first link are a STR connection pair that simultaneously transmits and receives STR.
[0054] In the above embodiment, the target eMLSR links whose link information is set to the second parameter value include one or more. That is, the second parameter value identifies that the access point device can perform uplink and downlink wireless Wi-Fi communications over one or more eMLSR links. The target eMLSR link and the first link form a simultaneous transceiver STR connection pair. That is, while the site device is receiving data on the first link, it can also send data on the target eMLSR link. Data transmission and reception between the two links do not affect each other, thereby improving the anti-interference capability of data transmission and reception between the links.
[0055] In conjunction with some embodiments of the first aspect, in some embodiments, after sending the CTS frame, the method further includes:
[0056] A request to send (RTS) frame sent by an access point device is received under one of the target eMLSR links.
[0057] In the above embodiment, the site device can receive the request to send RTS frame sent by the access point device under the target eMLSR link, thereby performing uplink and downlink wireless Wi-Fi communication with the access point device under the target eMLSR link to meet UHR transmission requirements.
[0058] In combination with some embodiments of the first aspect, in some embodiments, the communication service of the other wireless communication medium includes bursty service.
[0059] In a second aspect, an embodiment of the present disclosure provides a communication method, the method comprising:
[0060] The access point device sends an initial control frame under the first link of the eMLSR link negotiated with the site device;
[0061] A CTS frame is received under the first link; wherein the CTS frame is sent by the station device based on the need to transmit a communication service of other wireless communication media under the first link.
[0062] In conjunction with some embodiments of the second aspect, in some embodiments, the duration field or the newly defined field of the CTS frame is set to a first parameter value, indicating that the station device has communication services of other wireless communication media that need to be transmitted under the first link;
[0063] The CTS frame includes a transmission time for transmitting the communication service of the other wireless communication medium, and the transmission time indicates that the access point device can send the initial control frame again after the transmission time.
[0064] In conjunction with some embodiments of the second aspect, in some embodiments, after receiving the CTS frame, the method further includes:
[0065] After the transmission time, the initial control frame is sent under the first link.
[0066] In conjunction with some embodiments of the second aspect, in some embodiments, the CTS frame includes a first control field;
[0067] The first control field includes link information of the eMLSR link, where the link information is set to a second parameter value, indicating that uplink and downlink Wi-Fi communications can be performed under the corresponding eMLSR link.
[0068] In conjunction with some embodiments of the second aspect, in some embodiments, the eMLSR link whose link information is set to the second parameter value is a target eMLSR link, and the target eMLSR link includes one or more;
[0069] The target eMLSR link and the first link form an STR connection pair.
[0070] In combination with some embodiments of the first aspect, in some embodiments, the communication service of the other wireless communication medium includes bursty service.
[0071] In conjunction with some embodiments of the second aspect, in some embodiments, after receiving the CTS frame, the method further includes:
[0072] An RTS frame is sent under one of the target eMLSR links.
[0073] In a third aspect, an embodiment of the present disclosure further provides a communication device, which is a site device, and the site device includes at least one of a determination module and a first sending module; wherein the site device is used to execute an optional implementation method of the first aspect.
[0074] In a fourth aspect, an embodiment of the present disclosure further provides a communication device, which is an access point device, comprising: at least one of a second sending module and a receiving module; wherein the above-mentioned access point device is used to execute the optional implementation method of the second aspect.
[0075] In a fifth aspect, an embodiment of the present disclosure further provides a communication device, wherein the communication device is a site device, including:
[0076] one or more processors;
[0077] The site device is used to execute the optional implementation of the first aspect.
[0078] In a sixth aspect, an embodiment of the present disclosure further provides a communication device, wherein the communication device is an access point device, including:
[0079] one or more processors;
[0080] The access point device is used to perform the optional implementation of the second aspect.
[0081] In the seventh aspect, an embodiment of the present disclosure further provides a communication system, including a site device and an access point device; wherein the site device is configured to perform the optional implementation method described in the first aspect, and the access point device is configured as the optional implementation method described in the second aspect.
[0082] In an eighth 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 and second aspects.
[0083] In a ninth 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 and second aspects.
[0084] In a tenth 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 and second aspects.
[0085] In an eleventh aspect, an embodiment of the present disclosure provides a chip or a chip system, wherein the chip or chip system includes a processing circuit configured to execute the method described in the optional implementation of the first and second aspects above.
[0086] It is understandable that the aforementioned site devices, access point 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.
[0087] The embodiments of the present disclosure provide a communication method, a communication device, and a communication system. In some embodiments, the terms communication method, signal transmission method, wireless frame transmission method, etc. can be used interchangeably, and the terms information processing system, communication system, etc. can be used interchangeably.
[0088] 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.
[0089] 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.
[0090] 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.
[0091] In the embodiments of the present disclosure, “plurality” refers to two or more.
[0092] In some embodiments, the terms "at least one," "one or more," "a plurality of," "multiple," etc. may be used interchangeably.
[0093] 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.
[0094] 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.
[0095] 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.
[0096] 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.
[0097] 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.
[0098] 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.
[0099] 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.
[0100] In some embodiments, obtaining data, information, etc. may comply with the laws and regulations of the country where the data is obtained.
[0101] In some embodiments, data, information, etc. may be obtained with the user's consent.
[0102] 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.
[0103] FIG1 is a schematic diagram showing the architecture of a communication system according to an embodiment of the present disclosure.
[0104] As shown in FIG1 , a communication system 100 includes a station device (STA) 101 and an access point device (AP) 102 .
[0105] In some embodiments, the site device 101 includes, for example, a wireless communication chip, a wireless sensor, or a wireless communication terminal that supports WiFi communication. Optionally, the wireless communication terminal includes, but is not limited to, at least one of 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 capabilities, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal device used in industrial control, a wireless terminal device used in self-driving, a wireless terminal device used in remote medical surgery, a wireless terminal device used in a smart grid, a wireless terminal device used in transportation safety, a wireless terminal device used in a smart city, and a wireless terminal device used in a smart home.
[0106] 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.
[0107] In some embodiments, the access point device 102 can be an access point for a mobile terminal to enter a wired network. The AP is equivalent to a bridge connecting a wired network and a wireless network. Its main function is to connect various wireless network clients together and then connect the wireless network to the Ethernet. Specifically, the AP can be a terminal device or a network device with a wireless fidelity chip. Optionally, the AP can support multiple WLAN standards such as 802.11ax, 802.11be, 802.11ac, 802.11n, 802.11g, 802.11b and 802.11a, 802.11bf, 802.11bn, and support the next generation 802.11 protocol, but is not limited to this.
[0108] 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.
[0109] 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.
[0110] 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.
[0111] 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.
[0112] FIG2 is an interactive diagram of a communication method according to an embodiment of the present disclosure. As shown in FIG2 , the method includes:
[0113] Step 201: The access point device 102 sends an initial control frame in the first link of the enhanced multi-link single radio (eMLSR) link negotiated with the station device 101.
[0114] In WLAN communication scenarios, STAs or APs may support other wireless communication media in addition to Wi-Fi, such as Bluetooth (BT), New Radio (NR), Long Time Evolution (LTR), Ultra Wide Band (UWB), and Zigbee. However, when multiple wireless communication media communicate using the same frequency, they can interfere with each other, a phenomenon known as co-channel interference. This interference occurs when a device simultaneously communicates on two or more wireless communication media. Co-channel interference reduces system throughput, increases communication latency, and hinders the transmission of communication services. For example, if a STA supporting enhanced Multi-link Single Radio (eMLSR) receives an initial control frame from an AP and there is a burst of traffic on another communication media on the eMLSR link, the burst will interfere with the current Wi-Fi communication, hindering the transmission of communication services. However, the related art does not specify how a STA supporting the eMLSR function can avoid the impact of other communication media on Wi-Fi communication under the eMLSR link.
[0115] In some embodiments, a STA is attached to a non-AP MLD. When the non-AP MLD or AP MLD needs to conduct uplink or downlink Wi-Fi communication, the non-AP MLD listens for initial control frames sent by the AP MLD over the negotiated eMLSR link. These initial control frames include, but are not limited to, initial control frames, Multi-user Request to Send (MU-RTS) frames, and Buffer Status Report Poll (BSRP) frames. The present disclosure uses initial control frames as an example for illustration. For example, a non-AP MLD supporting eMLSR can simultaneously listen for initial control frames sent by the AP MLD on multiple links. The initial control frames include parameter information such as the number of service sets (SSs) and bandwidth (BW) mode.
[0116] In step 202 , the station device 101 receives an initial control frame in a first link of an enhanced multi-link single radio (eMLSR) link negotiated with the access point device 102 ; wherein the station device supports multi-link communication.
[0117] In some embodiments, a STA is attached to a non-AP MLD. When the non-AP MLD or AP MLD needs to perform uplink or downlink Wi-Fi communication, the non-AP MLD listens to and receives initial control frames sent by the AP MLD under the negotiated eMLSR link.
[0118] In step 203, the site device 101 determines to clear sending the CTS frame based on the fact that the site device 101 has other wireless communication media communication services that need to be transmitted under the first link; wherein the other wireless communication media communication services include burst services or temporary services.
[0119] If the non-AP MLD receives the initial control frame and has other communication tasks on the receiving link, such as bursty traffic, such as short bursts of dense traffic occurring within long periods of silence, the unlicensed spectrum can be used as a candidate frequency band for bursty traffic. This is because the sparse nature of unlicensed spectrum reduces the likelihood that the communication channel will be busy when the transmitting device attempts to send data.
[0120] Based on the fact that the station device 101 has other wireless communication media communication services that need to be transmitted under the first link, the STA attached to the non-AP MLD determines to send a clear to send (CTS) frame and executes step 204 .
[0121] Specifically, if the site device has communication services of other wireless communication media that need to be transmitted under the first link, the site device notifies the access point device through a CTS frame that it will transmit the communication services of the other wireless communication media within the duration of the CTS frame. In this way, during the duration, the access point device avoids uplink and downlink Wi-Fi communications with the site device, thereby preventing interference between Wi-Fi communications and communication services of other wireless communication media. The Wi-Fi communication services are temporally isolated from the services of other wireless communication media, thereby reducing interference caused by bursty communications of other wireless communication media on Wi-Fi communications, improving system throughput, and making it suitable for UHR transmission requirements.
[0122] Step 204: The site device 101 sends the CTS frame in the first link.
[0123] For example, a non-AP MLD sends a CTS frame on an eMLSR link after receiving an initial control frame.
[0124] Step 205: The access point device 102 receives a CTS frame in the first link.
[0125] For example, an AP MLD receives a CTS frame on an eMLSR link negotiated with a non-AP MLD.
[0126] As shown in FIG3 , in some embodiments of the present disclosure, the method includes:
[0127] In step 301 , the site device 101 determines to clear sending a CTS frame based on the fact that the site device 101 has other wireless communication media communication services that need to be transmitted under the first link; wherein the site device 101 supports multi-link communication.
[0128] The duration field or the newly defined field of the CTS frame is set to a first parameter value, indicating that the station device has a communication service of other wireless communication media that needs to be transmitted under the first link;
[0129] The CTS frame includes a transmission time for transmitting the communication service of the other wireless communication medium, and the transmission time indicates that the access point device can send the initial control frame again after the transmission time.
[0130] STA1, attached to a non-AP MLD, listens for and receives an initial control frame sent by the AP MLD on link 1. If a communication task using another communication medium exists on link 1, STA1 determines to send a CTS frame and responds to the CTS frame on link 1, for example, in a single-link scenario. The duration field or a newly defined field of the CTS frame is set to a first parameter value. The newly defined field may occupy a new field in the CTS frame and is used to indicate that the station device needs to transmit a communication service using another wireless communication medium on the first link. The first parameter value, for example, is "0," indicating that STA1 needs to transmit a communication task using another communication medium on link 1. At this time, STA1 cannot perform uplink or downlink Wi-Fi communications on link 1. Upon receiving the CTS frame, the access point device determines, based on the duration field, that STA1 cannot perform uplink or downlink Wi-Fi communications on link 1, and avoids performing uplink or downlink Wi-Fi communications with STA1 during the communication time of the other communication medium. Furthermore, when the duration field of the CTS frame is set to 0, the CTS frame carries the transmission time required to transmit the communication service of other wireless communication media. This allows the access point device to determine the time point when uplink and downlink Wi-Fi communication can resume based on the transmission time in the CTS frame (i.e., the time point after the communication time of the communication service of other wireless communication media ends) and send the initial control frame at that time point. This isolates the Wi-Fi communication service from the services of other wireless communication media in time, preventing interference between the two, reducing the interference caused by bursty communication of other wireless communication media on Wi-Fi communication, improving system throughput, and making it suitable for UHR transmission requirements.
[0131] Conversely, the duration field of the CTS frame is set to the same value as the duration field in the initial control frame, that is, the same as the duration of the initial control frame, indicating that STA1 has no communication tasks to transmit on other communication media under link 1 and can perform uplink and downlink Wi-Fi communication on link 1.
[0132] Step 302: The site device 101 sends the CTS frame in the first link.
[0133] Step 303: The access point device 102 sends the initial control frame again after the transmission time.
[0134] The CTS frame includes a transmission time for transmitting the communication service of the other wireless communication medium, and the transmission time indicates that the access point device can send the initial control frame again after the transmission time to attempt to initiate uplink and downlink Wi-Fi communications.
[0135] Step 304: The station device 101 receives the initial control frame in the first link after the transmission time.
[0136] After the transmission time, the station device receives the initial control frame again and performs uplink and downlink Wi-Fi communication with the access point device.
[0137] As shown in FIG4 , in some embodiments of the present disclosure, the method includes:
[0138] Step 401: The station device 101 receives an initial control frame in a first link of an enhanced multi-link single radio (eMLSR) link negotiated with the access point device 102, and determines to clear sending a CTS frame based on the station device having communication services on other wireless communication media that need to be transmitted in the first link; wherein the station device supports multi-link communication;
[0139] Wherein, the CTS frame includes a first control field;
[0140] The first control field includes link information of the eMLSR link, and the link information is set to a second parameter value, indicating that uplink and downlink Wi-Fi communications can be performed under the corresponding eMLSR link.
[0141] STA1, attached to a non-AP MLD, listens to and receives an initial control frame sent by the AP MLD on link 1. If a communication task using other communication media exists on link 1, STA1 determines that it sends a CTS frame and responds with a CTS frame on link 1. The CTS frame includes a first control field, such as an A-control field. The A-control field includes link information for the eMLSR link. The link information indicates whether the corresponding eMLSR link has a communication task using other communication media, that is, whether it can perform uplink and downlink Wi-Fi communication. For example, if the link information of an eMLSR link is set to a second parameter value, such as "0," it indicates that the corresponding eMLSR link has no communication task using other communication media and can perform uplink and downlink Wi-Fi communication. Links that can perform uplink and downlink Wi-Fi communication can serve as receiving links for initial control frames. For another example, if the link information of an eMLSR link is not set to the second parameter value, such as "1," it indicates that the corresponding eMLSR link cannot perform uplink and downlink Wi-Fi communication. Links that can perform uplink and downlink Wi-Fi communication can serve as receiving links for initial control frames.
[0142] Step 402: The site device 101 sends the CTS frame in the first link.
[0143] Step 403: The access point device 102 sends an RTS frame under one of the target eMLSR links.
[0144] Among them, after receiving the CTS frame, the access point device selects an eMLSR link with link information set to the second parameter value as the target eMLSR link according to the CTS frame and sends an RTS frame. After receiving the CTS frame replied by the site device, uplink and downlink Wi-Fi communication data interaction is performed.
[0145] Specifically, the duration of the RTS frame can be consistent with the duration of the initial control frame. For example, the value of the duration field of the RTS frame is consistent with the value of the duration field of the initial control frame, ensuring that the CTS frame sent by the site device in response to the initial control frame can be received within the duration of the RTS frame, that is, the CTS frame including the first control field.
[0146] Furthermore, the duration of the RTS frame can also be the duration of the initial control frame minus the length of the initial control frame and a short interframe interval (SIFS). For example, the value of the duration field of the RTS frame is the value of the duration field of the initial control frame minus the length of the initial control frame minus a short interframe interval (SIFS). In this case, the CTS frame sent by the station device in response to the initial control frame can still be received within the duration of the RTS frame.
[0147] In step 404, the site device 101 sends the CTS frame again under the target eMLSR link to perform uplink and downlink Wi-Fi communication data interaction.
[0148] In some embodiments, the eMLSR link whose link information is set to the second parameter value is a target eMLSR link, and the target eMLSR link includes one or more; multiple scenarios such as a multi-link scenario;
[0149] The target eMLSR link and the first link are a STR connection pair that simultaneously transmits and receives STR.
[0150] The first link and the target eMLSR link are a simultaneous transmitting and receiving (STR) connection pair, and data transmission and reception between the two links do not affect each other.
[0151] The communication method involved in the embodiments of the present disclosure may include at least one of the aforementioned steps and embodiments. For example, step 203 can be implemented as an independent embodiment, and step 204 can be implemented as an independent embodiment; step 301 can be implemented as an independent embodiment, step 302 can be implemented as an independent embodiment, step 303 can be implemented as an independent embodiment, and step 304 can be implemented as an independent embodiment; step 401 can be implemented as an independent embodiment, step 402 can be implemented as an independent embodiment, step 403 can be implemented as an independent embodiment, and step 404 can be implemented as an independent embodiment; the combination of step 202 and step 203 can be implemented as an independent embodiment, and step 203 can be implemented as an independent embodiment. The combination of step 301 and step 302 can be implemented as an independent embodiment, the combination of step 302 and step 303 can be implemented as an independent embodiment, the combination of step 303 and step 304 can be implemented as an independent embodiment, the combination of step 401 and step 402 can be implemented as an independent embodiment, the combination of step 402 and step 403 can be implemented as an independent embodiment, and the combination of step 403 and step 404 can be implemented as an independent embodiment, but are not limited to this.
[0152] In some embodiments, reference may be made to other optional implementations described before or after the description corresponding to FIG. 2 to FIG. 4 .
[0153] 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.
[0154] 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.
[0155] In some embodiments, terms such as wireless access scheme and waveform may be used interchangeably.
[0156] 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.
[0157] 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.
[0158] 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.
[0159] FIG5 is a flowchart of a communication method according to an embodiment of the present disclosure.
[0160] As shown in FIG5 , the above method may be applied to a site device 101, and the above method includes:
[0161] Step 501: The station device 101 receives an initial control frame in a first link of an enhanced multi-link single radio (eMLSR) link negotiated with the access point device 102, and determines to clear sending a CTS frame based on the presence of communication services on other wireless communication media that need to be transmitted by the station device 101 in the first link; wherein the station device 101 supports multi-link communication.
[0162] Step 502: The site device 101 sends the CTS frame in the first link.
[0163] Optionally, in an embodiment of the present disclosure, the duration field of the CTS frame is set to a first parameter value, indicating that the station device has communication services of other wireless communication media that need to be transmitted under the first link;
[0164] The CTS frame includes a transmission time for transmitting the communication service of the other wireless communication medium, and the transmission time indicates that the access point device can send the initial control frame again after the transmission time.
[0165] Step 503: After the transmission time, the station device 101 receives the initial control frame in the first link.
[0166] Optionally, in an embodiment of the present disclosure, the CTS frame includes a first control field;
[0167] The first control field includes link information of the eMLSR link, and the link information is set to a second parameter value, indicating that uplink and downlink Wi-Fi communications can be performed under the corresponding eMLSR link.
[0168] Optionally, in the embodiment of the present disclosure, the eMLSR link whose link information is set to the second parameter value is a target eMLSR link, and the target eMLSR link includes one or more;
[0169] The target eMLSR link and the first link are a STR connection pair that simultaneously transmits and receives STR.
[0170] Step 504: Receive a request to send (RTS) frame sent by the access point device 102 under one of the target eMLSR links.
[0171] Optionally, in an embodiment of the present disclosure, the communication services of the other wireless communication media include bursty services.
[0172] The communication method involved in the embodiments of the present disclosure may include at least one of the aforementioned steps and embodiments. For example, step 501 can be implemented as an independent embodiment, step 502 can be implemented as an independent embodiment, step 503 can be implemented as an independent embodiment, and step 504 can be implemented as an independent embodiment; the combination of step 501 and step 502 can be implemented as an independent embodiment, the combination of step 502 and step 503 can be implemented as an independent embodiment, and the combination of step 502 and step 504 can be implemented as an independent embodiment, but the present invention is not limited thereto.
[0173] In some embodiments, reference may be made to other optional implementations described before or after the description corresponding to FIG. 5 .
[0174] FIG6 is a second flowchart of a communication method according to an embodiment of the present disclosure.
[0175] As shown in FIG6 , the above method may be applied to an access point device 102, and the above method includes:
[0176] Step 601: The access point device 102 sends an initial control frame under the first link of the eMLSR link negotiated with the station device 101.
[0177] In step 602, the access point device 102 receives a CTS frame in the first link. The CTS frame is sent by the station device based on a communication service needing to be transmitted via other wireless communication media in the first link.
[0178] Optionally, in an embodiment of the present disclosure, the duration field of the CTS frame is set to a first parameter value, indicating that the station device has communication services of other wireless communication media that need to be transmitted under the first link;
[0179] The CTS frame includes a transmission time for transmitting the communication service of the other wireless communication medium, and the transmission time indicates that the access point device can send the initial control frame again after the transmission time.
[0180] Step 603: The access point device 102 sends the initial control frame in the first link after the transmission time.
[0181] Optionally, in an embodiment of the present disclosure, the CTS frame includes a first control field;
[0182] The first control field includes link information of the eMLSR link, where the link information is set to a second parameter value, indicating that uplink and downlink Wi-Fi communications can be performed under the corresponding eMLSR link.
[0183] Optionally, in the embodiment of the present disclosure, the eMLSR link whose link information is set to the second parameter value is a target eMLSR link, and the target eMLSR link includes one or more;
[0184] The target eMLSR link and the first link form an STR connection pair.
[0185] In step 604, the access point device 102 sends an RTS frame on one of the target eMLSR links.
[0186] The communication method involved in the embodiments of the present disclosure may include at least one of the aforementioned steps and embodiments. For example, step 602 may be implemented as an independent embodiment, step 603 may be implemented as an independent embodiment, and step 604 may be implemented as an independent embodiment; the combination of step 601 and step 602 may be implemented as an independent embodiment, the combination of step 602 and step 603 may be implemented as an independent embodiment, and the combination of step 602 and step 604 may be implemented as an independent embodiment, but the present invention is not limited thereto.
[0187] In some embodiments, reference may be made to other optional implementations described before or after the description corresponding to FIG. 6 .
[0188] 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.
[0189] 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 configuring the 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 realized in the form of software called by the processor, or in the form of hardware circuits, or in part by the form of software called by the processor, and the rest by hardware circuits.
[0190] 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.
[0191] Figure 7 is a schematic diagram of the structure of a site device according to an embodiment of the present disclosure. As shown in Figure 7 , the site device 700 may include at least one of a determining module 701 and a first sending module 702 .
[0192] In some embodiments, the above-mentioned determination module 701 is used to receive an initial control frame under the first link of the enhanced multi-link single radio eMLSR link negotiated with the access point device, and determine to clear sending a CTS frame based on the fact that the site device has other wireless communication media that need to be transmitted under the first link; wherein, the site device supports multi-link communication; and the first sending module 702 is used to send the CTS frame under the first link.
[0193] Optionally, the determination module 701 is configured to execute at least one of the communication steps (e.g., step 202, step 203, step 301, step 401, and step 501, but not limited thereto) performed by the site device 101 in any of the above methods, which are not described in detail here. The sending module 702 is configured to execute at least one of (step 204, step 302, step 402, and step 502, but not limited thereto), which are not described in detail here.
[0194] FIG8 is a schematic diagram of the structure of an access point device according to an embodiment of the present disclosure. As shown in FIG8 , the access point device 800 may include: a second sending module 801 and a receiving module 802 .
[0195] In some embodiments, the second sending module 801 is used to send an initial control frame under the first link of the eMLSR link negotiated with the site device; the receiving module 802 is used to receive a CTS frame under the first link; wherein, the CTS frame is sent by the site device based on the need to transmit communication services of other wireless communication media under the first link.
[0196] Optionally, the second sending module 801 is configured to execute at least one of the communication steps (e.g., step 201 and step 601, but not limited thereto) performed by the access point device 102 in any of the above methods, and will not be described in detail here. The receiving module 902 is configured to execute at least one of the communication steps (e.g., step 205 and step 602, but not limited thereto) performed by the access point device 102 in any of the above methods, and will not be described in detail here.
[0197] Figure 9 is a schematic diagram of the structure of a terminal 900 (e.g., user equipment) proposed in an embodiment of the present disclosure. Terminal 900 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 900 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.
[0198] As shown in Figure 9, terminal 900 includes one or more processors 901. Processor 901 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 900 is used to perform any of the above methods.
[0199] In some embodiments, the terminal 900 further includes one or more memories 902 for storing instructions. Optionally, all or part of the memories 902 may be located outside the terminal 900.
[0200] In some embodiments, the terminal 900 further includes one or more transceivers 904. When the terminal 900 includes one or more transceivers 904, the transceiver 904 performs at least one of the communication steps such as sending and / or receiving in the above method (for example, step 201, step 202, step 204, step 205, step 301, step 302, step 303, step 304, step 401, step 402, step 403, step 404, step 501, step 502, step 503, step 504, step 601, step 602, step 603, step 604, but not limited thereto), and the processor 1001 performs other steps (for example, step 203).
[0201] 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.
[0202] In some embodiments, terminal 900 may include one or more interface circuits 903. Optionally, interface circuit 903 is connected to memory 902. Interface circuit 903 may be configured to receive signals from memory 902 or other devices, and may be configured to send signals to memory 902 or other devices. For example, interface circuit 903 may read instructions stored in memory 902 and send the instructions to processor 901.
[0203] The terminal 900 described in the above embodiment may be a communication device such as a user device, but the scope of the terminal 900 described in the present disclosure is not limited thereto, and the structure of the terminal 900 may not be limited by FIG. 9 . 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.
[0204] FIG10 is a schematic diagram of the structure of a chip 1000 according to an embodiment of the present disclosure. If the terminal 900 is a chip or a chip system, reference may be made to the schematic diagram of the structure of the chip 1000 shown in FIG10 , but the present disclosure is not limited thereto.
[0205] The chip 1000 includes one or more processors 1001 , and the chip 1000 is configured to execute any of the above methods.
[0206] In some embodiments, chip 1000 further includes one or more 1003. Optionally, interface circuit 1003 is connected to memory 1002. Interface circuit 1003 can be used to receive signals from memory 1002 or other devices, and interface circuit 1003 can be used to send signals to memory 1002 or other devices. For example, interface circuit 1003 can read instructions stored in memory 1002 and send the instructions to processor 1001.
[0207] In some embodiments, the interface circuit 1003 executes at least one of the communication steps such as sending and / or receiving in the above method (for example, step 201, step 202, step 204, step 205, step 301, step 302, step 303, step 304, step 401, step 402, step 403, step 404, step 501, step 502, step 503, step 504, step 601, step 602, step 603, step 604, but not limited to this), and the processor 1001 executes other steps (for example, step 203).
[0208] In some embodiments, terms such as interface circuit, interface, transceiver pin, and transceiver may be used interchangeably.
[0209] In some embodiments, the chip 1000 further includes one or more memories 1002 for storing instructions. Alternatively, all or part of the memory 1002 may be external to the chip 1000.
[0210] The present disclosure also provides a storage medium having instructions stored thereon. When the instructions are executed on the terminal 900, the terminal 900 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.
[0211] The present disclosure also provides a program product, which, when executed by the terminal 900, enables the terminal 900 to perform any of the above methods. Optionally, the program product is a computer program product.
[0212] 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 communication method, characterized in that, The method includes: The station device receives an initial control frame on a first link in an enhanced multi-link single-radio (eMLSR) link negotiated with an access point device. Based on the need to transmit communication traffic of other wireless communication media on the first link by the station device, it determines to send a clear-to-send (CTS) frame; wherein, the station device supports multi-link communication. On the first link, send the CTS frame.
2. The communication method according to claim 1, characterized in that, The duration field or a newly defined field of the CTS frame is set to a first parameter value, indicating that the station device has communication traffic of other wireless communication media to transmit on the first link. The CTS frame includes the transmission time for transmitting the communication traffic of the other wireless communication media, and the transmission time indicates that the access point device can resend the initial control frame after the transmission time.
3. The communication method according to claim 2, wherein After sending the CTS frame, the method further includes: After the transmission time, receive the initial control frame on the first link.
4. The communication method according to claim 1, wherein The CTS frame includes a first control field. The first control field includes link information of the eMLSR link, and the link information is set to a second parameter value, indicating that uplink and downlink wireless Wi-Fi communication can be performed under the corresponding eMLSR link.
5. The communication method according to claim 4, wherein The eMLSR link with the link information set to the second parameter value is the target eMLSR link, and there are one or more target eMLSR links. The target eMLSR link and the first link are a simultaneous transmit and receive (STR) connection pair.
6. The communication method according to claim 5, wherein After sending the CTS frame, the method further includes: On one of the target eMLSR links, receive a request to send (RTS) frame sent by the access point device.
7. The communication method according to any one of claims 1 to 6, characterized in that, The communication traffic of the other wireless communication media includes bursty traffic.
8. A communication method, characterized in that, The method includes: The access point device sends an initial control frame on a first link of an eMLSR link negotiated with a station device. On the first link, receive a CTS frame; wherein, the CTS frame is sent by the station device based on the need to transmit communication traffic of other wireless communication media on the first link.
9. The communication method according to claim 8, characterized in that, The duration field or a newly defined field of the CTS frame is set to a first parameter value, indicating that the station device has communication traffic of other wireless communication media to transmit on the first link. The CTS frame includes the transmission time for transmitting the communication traffic of the other wireless communication media, and the transmission time indicates that the access point device can resend the initial control frame after the transmission time.
10. The communication method according to claim 9, wherein After receiving the CTS frame, the method further includes: After the transmission time, on the first link, send the initial control frame.
11. The communication method according to claim 8, wherein, The CTS frame includes a first control field. The first control domain includes link information of the eMLSR link, and the link information is set to a second parameter value, indicating that uplink and downlink Wi-Fi communication can be performed under the corresponding eMLSR link.
12. The communication method according to claim 11, wherein The eMLSR link whose link information is set to the second parameter value is the target eMLSR link, and there are one or more target eMLSR links; The target eMLSR link and the first link are a STR connection pair with each other.
13. The communication method according to claim 12, characterized in that After receiving the CTS frame, the method further includes: Sending an RTS frame under one of the target eMLSR links.
14. The communication method according to any one of claims 8 to 13, characterized in that The communication services of the other wireless communication medium include burst services.
15. A communication device, the communication device being a station device, characterized in that, The station device includes: A determination module, configured to receive an initial control frame under a first link in an enhanced multi-link single radio eMLSR link negotiated with an access point device, and determine to clear and send a CTS frame based on the need to transmit communication services of other wireless communication media under the first link of the station device; wherein, the station device supports multi-link communication; A first sending module, configured to send the CTS frame under the first link.
16. A communication device, which is an access point device, characterized in that, The access point device includes: A second sending module, configured to send an initial control frame under a first link of an eMLSR link negotiated with a station device; A receiving module, configured to receive a CTS frame under the first link; wherein, the CTS frame is sent by the station device based on the need to transmit communication services of other wireless communication media under the first link.
17. A communication device, characterized in that, Includes: One or more processors; Wherein, the station device is configured to execute the communication method according to any one of claims 1 to 7; the access point device is configured to execute the communication method according to any one of claims 8 to 14.
18. A storage medium, the storage medium stores instructions, characterized in that, When the instruction runs on a communication device, the communication device is caused to execute the communication method according to any one of claims 1 to 7, or execute the communication method according to any one of claims 8 to 14.
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