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WO2025097447A1 - Procédé de communication, dispositif de communication et système de communication - Google Patents

Procédé de communication, dispositif de communication et système de communication Download PDF

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Publication number
WO2025097447A1
WO2025097447A1 PCT/CN2023/131115 CN2023131115W WO2025097447A1 WO 2025097447 A1 WO2025097447 A1 WO 2025097447A1 CN 2023131115 W CN2023131115 W CN 2023131115W WO 2025097447 A1 WO2025097447 A1 WO 2025097447A1
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WO
WIPO (PCT)
Prior art keywords
duration
communication
txop
radio frame
wireless
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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PCT/CN2023/131115
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English (en)
Chinese (zh)
Inventor
董贤东
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Beijing Xiaomi Mobile Software Co Ltd
Original Assignee
Beijing Xiaomi Mobile Software Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Beijing Xiaomi Mobile Software Co Ltd filed Critical Beijing Xiaomi Mobile Software Co Ltd
Priority to PCT/CN2023/131115 priority Critical patent/WO2025097447A1/fr
Priority to CN202380012026.5A priority patent/CN120303996A/zh
Publication of WO2025097447A1 publication Critical patent/WO2025097447A1/fr
Pending legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/54—Allocation or scheduling criteria for wireless resources based on quality criteria
    • H04W72/541—Allocation or scheduling criteria for wireless resources based on quality criteria using the level of interference

Definitions

  • the present disclosure relates to the field of communication technology, and in particular to a communication method, communication equipment and communication system.
  • Ultra High Reliability UHR
  • WLAN Wireless Local Area Networks
  • SNR signal-to-noise ratio
  • the 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.
  • an embodiment of the present disclosure provides a communication method, which is applied to a TXOP responder, and the method includes:
  • the second radio frame is sent.
  • an embodiment of the present disclosure further provides a communication method, which is applied to a TXOP initiator, and the method includes:
  • an embodiment of the present disclosure further provides a communication device, wherein the communication device is a TXOP responder, and the TXOP responder includes:
  • a first receiving module configured to receive a first wireless frame; wherein the first wireless frame includes a first duration;
  • a determination module configured to determine a second radio frame; wherein the second radio frame includes a second duration, and the second duration is less than or equal to the first duration;
  • the first sending module is used to send the second wireless frame.
  • an embodiment of the present disclosure further provides a communication device, wherein the communication device is a TXOP initiator, and the TXOP initiator includes:
  • a second sending module configured to send a first wireless frame to a TXOP responder; wherein the first wireless frame includes a first duration;
  • the second receiving module is configured to receive a second radio frame replied by the TXOP responder; wherein the second radio frame includes a second duration, and the second duration is less than or equal to the first duration.
  • an embodiment of the present disclosure further provides a communication device, wherein the communication device is a TXOP responder, including:
  • processors one or more processors
  • the TXOP responder is used to execute the communication method described in the embodiment of the present disclosure.
  • an embodiment of the present disclosure further provides a communication device, wherein the communication device is a TXOP initiator, including:
  • processors one or more processors
  • the TXOP initiator is used to execute the communication method described in the embodiment of the present disclosure.
  • the embodiments of the present disclosure also provide a communication system, including a TXOP responder and a TXOP initiator; wherein the TXOP responder is configured to implement the communication method described in the embodiments of the present disclosure, and the TXOP initiator is configured to implement the communication method described in the embodiments of the present disclosure.
  • the embodiment of the present disclosure further provides a storage medium, which stores instructions.
  • the 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.
  • the TXOP responder sets the value of the second duration field in the CTS frame to be smaller than the value of the first duration field in the MU-RTS frame/RTS frame, that is, the TXOP responder will occupy part of the time within the first duration for communication service of other wireless communication media.
  • the Wi-Fi communication service and the service of other wireless communication media can be isolated in time to avoid mutual interference between the two, so as to reduce the interference of burst communication of other wireless communication media to Wi-Fi communication, improve the system throughput, and make it suitable for the transmission requirements of UHR.
  • FIG1 is an exemplary schematic diagram of the architecture of a communication system provided according to an embodiment of the present disclosure
  • FIG2 is an exemplary interaction diagram of a method provided according to an embodiment of the present disclosure.
  • FIG3 is one of schematic diagrams of communication duration provided by an embodiment of the present disclosure.
  • FIG4 is one of schematic diagrams of communication duration provided by an embodiment of the present disclosure.
  • FIG5 is one of schematic diagrams of communication duration provided by an embodiment of the present disclosure.
  • FIG6 is a flow chart of a communication method according to an embodiment of the present disclosure.
  • FIG7 is a second flow chart of the communication method provided in an embodiment of the present disclosure.
  • FIG8 is a schematic diagram of the structure of a TXOP responder proposed in an embodiment of the present disclosure.
  • FIG9 is a schematic diagram of the structure of a TXOP initiator proposed in an embodiment of the present disclosure.
  • FIG10 is a schematic diagram of the structure of a terminal provided in an embodiment of the present disclosure.
  • FIG. 11 is a schematic diagram of the structure of a chip proposed in an embodiment of the present disclosure.
  • the embodiments of the present disclosure provide a communication method, a communication device, and a communication system.
  • an embodiment of the present disclosure provides a communication method, which is applied to a TXOP responder.
  • the method includes:
  • the second radio frame is sent.
  • the value of the second duration field in the CTS frame is set to be smaller than the value of the first duration field, indicating that the TXOP responder needs to communicate with services on other wireless communication media during the first duration.
  • the Wi-Fi communication services and services on other wireless communication media can be isolated in time to avoid mutual interference between the two, thereby reducing the interference of burst communications on Wi-Fi communications caused by other wireless communication media, improving system throughput, and making it suitable for UHR transmission requirements.
  • the second duration is less than the first duration, indicating that the TXOP responder has communication services on other wireless communication media during the first duration.
  • the device when the device is performing Wi-Fi communication, if there are services of other wireless communication media, by setting the second duration to be less than the first duration, additional time is allocated within the first duration for transmitting services of other wireless communication media, so that the Wi-Fi communication service and the services of other wireless communication media can be isolated in time to avoid interference between the two.
  • the second radio frame further includes a first control field
  • the second duration is equal to the first duration, and the flag bit in the first control field is a reserved bit;
  • the second duration is shorter than the first duration, and the first control field includes communication time information of the TXOP responder performing communication services of other wireless communication media within the first duration.
  • the second duration is equal to the first duration, indicating that the TXOP responder does not exist within the first duration.
  • the communication service is performed.
  • the flag bit in the first control field is set as a reserved bit.
  • the second duration is less than the first duration, indicating that the TXOP responder has communication services on other wireless communication media within the first duration.
  • the first control field of the CTS frame carries the communication time information of the communication services on other wireless communication media performed by the TXOP responder within the first duration, so that the TXOP initiator can determine the specific time of other communication services according to the communication time information.
  • the communication time information includes at least one of the following:
  • the start time information and the end time information of the communication service are The start time information and the end time information of the communication service.
  • the end time information of the communication service and/or the third duration are the end time information of the communication service and/or the third duration.
  • the TXOP initiator can determine the time information for other communication services to communicate with the TXOP responder within the first duration according to the communication time information, so that the TXOP initiator can determine the specific time of other communication services according to the communication time information, and allocate additional time within the first duration for transmitting services of other wireless communication media, which can isolate the Wi-Fi communication service from the services of other wireless communication media in terms of time to avoid interference between the two.
  • the method further includes:
  • the second link in the NSTR link stops communicating during the communication duration of the communication service.
  • the second link in the NSTR link needs to stop communication. Even if the TXOP responder has communication services of other wireless communication media within the first duration, the non-simultaneous transceiver performance of the NSTR link must be ensured, that is, if one of the links in the NSTR link has communication services of other wireless communication media, no wireless communication is performed under another link in the NSTR link.
  • the method before sending the second radio frame, the method further includes:
  • First identification information is sent to the TXOP initiator, where the first identification information identifies that the TXOP responder supports communication services for transmitting other wireless communication media.
  • the TXOP responder can describe the periodic communication service interference existing in the system through the first identification information, so that the TXOP initiator can clearly know whether the TXOP responder supports the communication service of transmitting other wireless communication media, thereby reducing the probability of periodic communication service interference.
  • the first radio frame includes: a request to send an RTS frame or a multi-user request to send an MU-RTS frame;
  • the second radio frame includes a Clear to Send (CTS) frame.
  • CTS Clear to Send
  • the first wireless frame includes an RTS frame or an MU RTS frame; the RTS frame or the MU RTS frame is used to reserve the right to use the communication medium for use by the TXOP responder, and the CTS frame is used to respond to the RTS frame or the MU RTS frame.
  • an embodiment of the present disclosure proposes a communication method, which is applied to a TXOP initiator.
  • the method includes:
  • the second duration is less than the first duration, indicating that the TXOP responder has communication services on other wireless communication media during the first duration.
  • the second radio frame includes a first control field
  • the second duration is equal to the first duration, and the flag bit in the first control field is a reserved bit;
  • the second duration is shorter than the first duration, and the first control field includes communication time information of the TXOP responder performing communication services of other wireless communication media within the first duration.
  • the communication time information includes at least one of the following:
  • the start time information and the end time information of the communication service are The start time information and the end time information of the communication service.
  • the end time information of the communication service and/or the third duration are the end time information of the communication service and/or the third duration.
  • the method further includes:
  • the second link in the NSTR link stops communicating within the communication duration of the communication service.
  • the method before receiving the second radio frame replied by the TXOP responder, the method further includes:
  • First identification information sent by the TXOP responder is received, where the first identification information identifies that the TXOP responder supports communication services for transmitting other wireless communication media.
  • the first radio frame includes: a request to send an RTS frame or a multi-user request to send an MU-RTS frame;
  • the second radio frame includes a Clear to Send (CTS) frame.
  • CTS Clear to Send
  • an embodiment of the present disclosure further provides a communication device, which is a TXOP responder, and the TXOP responder includes at least one of a first receiving module, a determining module, and a first sending module; wherein the TXOP responder is used to execute an optional implementation method of the first aspect.
  • an embodiment of the present disclosure further provides a communication device, which is a TXOP initiator, comprising: at least one of a second sending module and a second receiving module; wherein the TXOP initiator is used to execute the optional implementation method of the second aspect.
  • a communication device which is a TXOP initiator, comprising: at least one of a second sending module and a second receiving module; wherein the TXOP initiator is used to execute the optional implementation method of the second aspect.
  • an embodiment of the present disclosure further provides a communication device, where the communication device is a TXOP responder, including:
  • processors one or more processors
  • the TXOP responder is used to execute the optional implementation of the first aspect.
  • an embodiment of the present disclosure further provides a communication device, wherein the communication device is a TXOP initiator, including:
  • processors one or more processors
  • the TXOP initiator is used to execute the optional implementation of the second aspect.
  • an embodiment of the present disclosure further provides a communication system, comprising a TXOP responder and a TXOP initiator; wherein the TXOP responder is configured to execute the optional implementation method as described in the first aspect, and the TXOP initiator is configured to execute the optional implementation method as described in the second 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.
  • an embodiment of the present disclosure proposes a program product.
  • the communication device executes the method described in the optional implementation manner of the first aspect and the second aspect.
  • an embodiment of the present disclosure proposes a computer program, which, when executed on a computer, enables the computer to execute the method described in the optional implementation of the first aspect and the second 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 aspect and the second aspect.
  • TXOP responder TXOP initiator
  • communication system storage medium
  • program product computer program
  • the chip or chip system is used to execute the method proposed in the embodiment of the present disclosure. Therefore, the beneficial effects that can be achieved can refer to the beneficial effects in the corresponding method, which will not be repeated here.
  • the embodiments of the present disclosure provide a communication method, a communication device and a communication system.
  • the terms such as communication method, signal transmission method, wireless frame transmission method, etc. can be replaced with each other, and the terms such as information processing system, communication system, etc. can be replaced with each other.
  • each step in a certain embodiment can be implemented as an independent embodiment, and the steps can be arbitrarily combined.
  • 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.
  • the optional implementation methods in a certain embodiment can be arbitrarily combined; in addition, the embodiments can be arbitrarily combined, for example, some or all of the steps of different embodiments can be arbitrarily combined, and a certain embodiment can be arbitrarily combined with the optional implementation methods of other embodiments.
  • plurality refers to two or more.
  • the terms "at least one of”, “one or more”, “a plurality of”, “multiple”, etc. can be used interchangeably.
  • "at least one of A and B", “A and/or B", “A in one case, B in another case”, “in response to one case A, in response to another case B”, etc. may include the following technical solutions according to the situation: in some embodiments, A (A is executed independently of B); in some embodiments, B (B is executed independently of A); in some embodiments, execution is selected from A and B (A and B are selectively executed); in some embodiments, A and B (both A and B are executed). When there are more branches such as A, B, C, etc., the above is also similar.
  • the recording method of "A or B” may include the following technical solutions according to the situation: in some embodiments, A (A is executed independently of B); in some embodiments, B (B is executed independently of A); in some embodiments, execution is selected from A and B (A and B are selectively executed).
  • A A is executed independently of B
  • B B is executed independently of A
  • execution is selected from A and B (A and B are selectively executed).
  • prefixes such as “first” and “second” in the embodiments of the present disclosure are only used to distinguish different description objects, and do not constitute restrictions on the position, order, priority, quantity or content of the description objects.
  • the statement of the description object refers to the description in the context of the claims or embodiments, and should not constitute unnecessary restrictions due to the use of prefixes.
  • 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”
  • the "first” and “second” do not limit whether the "fields” they modify are in the same message, nor do they limit the order of the "first field” and the "second field”.
  • 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”.
  • the number of description objects is not limited by the ordinal number, and can be one or more. Taking the "first device” as an example, the number of "devices” can be one or more.
  • the objects modified by different prefixes may be the same or different. For example, if the description object is "device”, then the “first device” and the “second device” may be the same device or different devices, and their types may be the same or different. For another example, if the description object is "information”, then the "first information” and the “second information” may be the same information or different information, and their contents may be the same or different.
  • “including A”, “comprising A”, “used to indicate A”, and “carrying A” can be interpreted as directly carrying A or indirectly indicating A.
  • terms such as “greater than”, “greater than or equal to”, “not less than”, “more than”, “more than or equal to”, “not less than”, “higher than”, “higher than or equal to”, “not lower than”, and “above” can be replaced with each other, and terms such as “less than”, “less than or equal to”, “not greater than”, “less than”, “less than or equal to”, “no more than”, “lower than”, “lower than or equal to”, “not higher than”, and “below” can be replaced with each other.
  • devices and equipment may be interpreted as physical or virtual, and their names are not limited to the names recorded in the embodiments. In some cases, they may also be understood as “equipment”, “device”, “circuit”, “network element”, “node”, “function”, “unit”, “section”, “system”, “network”, “chip”, “chip system”, “entity”, “subject”, etc.
  • acquisition of data, information, etc. may comply with the laws and regulations of the country where the data is obtained.
  • data, information, etc. may be obtained with the user's consent.
  • each element, each row, or each column in the table of the embodiments of the present disclosure may be implemented as an independent embodiment, and the combination of any elements, any rows, and any columns may also be implemented as an independent embodiment.
  • FIG1 is a schematic diagram of the architecture of a communication system according to an embodiment of the present disclosure.
  • the communication system 100 includes a transmission opportunity (TXOP) responder 101 (which may be Station, STA or Access Point, AP), TXOP initiator 102 (can be Station, STA or Access Point, AP).
  • TXOP transmission opportunity
  • responder 101 which may be Station, STA or Access Point, AP
  • TXOP initiator 102 can be Station, STA or Access Point, AP.
  • the TXOP responder 101 and the TXOP initiator 102 may be, for example, a wireless communication chip, a wireless sensor or a wireless communication terminal that supports WiFi communication function.
  • the wireless communication terminal may be, for example, a mobile phone, a wearable device, an Internet of Things device that supports WiFi communication function, a car with WiFi communication function, a smart car, a tablet computer, a computer with wireless transceiver function, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal device in industrial control, a wireless terminal device in self-driving, a wireless terminal device in remote medical surgery, a wireless terminal device in smart grid, a wireless terminal device in transportation safety, a wireless terminal device in smart city, or a wireless terminal device in smart home, but is not limited thereto.
  • VR virtual reality
  • AR augmented reality
  • the TXOP responder 101 and the TXOP initiator 102 may be terminal devices or network devices with a wireless fidelity (WiFi) chip.
  • the TXOP responder 101 and the TXOP initiator 102 may support multiple WLAN standards such as 802.11ax, 802.11be, 802.11ac, 802.11n, 802.11g, 802.11b, 802.11a, 802.11bf, 802.11bn, and support the next generation 802.11 protocol, but are not limited thereto.
  • the TXOP responder 101 and the TXOP initiator 102 may be access points for mobile terminals to enter a wired network.
  • 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.
  • the AP may be a terminal device or a network device with a wireless fidelity chip.
  • the AP may support multiple WLAN standards such as 802.11ax, 802.11be, 802.11ac, 802.11n, 802.11g, 802.11b, 802.11a, 802.11bf, 802.11bn, and support the next generation 802.11 protocol, but is not limited thereto.
  • AP and STA may be devices supporting multiple connections, for example, may be respectively represented as a multi-connection access point device (Access Point Multi-Link Device, AP MLD) and a multi-connection site device (Non-Access Point Multi-Link Device, Non-AP MLD); AP MLD may represent an access point supporting multi-connection communication functions, and non-AP MLD may represent a site supporting multi-connection communication functions.
  • AP MLD may represent an access point supporting multi-connection communication functions
  • non-AP MLD may represent a site supporting multi-connection communication functions.
  • the communication system described in the embodiment of the present disclosure is for the purpose of more clearly illustrating the technical solution of the embodiment of the present disclosure, and does not constitute a limitation on the technical solution proposed in the embodiment of the present disclosure.
  • a person of ordinary skill in the art can know that with the evolution of the system architecture and the emergence of new business scenarios, the technical solution proposed in the embodiment of the present disclosure is also applicable to similar technical problems.
  • the following embodiments of the present disclosure may be applied to the communication system 100 shown in FIG1 , or part of the subject, but are not limited thereto.
  • the subjects shown in FIG1 are examples, and the communication system may include all or part of the subjects in FIG1 , or may include other subjects other than FIG1 , and the number and form of the subjects are arbitrary, and the subjects may be physical or virtual, and the connection relationship between the subjects is an example, and the subjects may be connected or disconnected, and the connection may be in any manner, and may be a direct connection or an indirect connection, and may be a wired connection or a wireless connection.
  • a wireless local area network such as a local area network using the 802.11 series of protocols.
  • a basic service set (BSS) is a basic component of a WLAN.
  • a BSS network is composed of station devices with some association within a specific coverage area.
  • IBSS independent BSS
  • Another more common case is that there is only one central station in the BSS network that is dedicated to managing the BSS, which is called an access point device, and all other STAs in the network are associated with it.
  • STAs Other stations in the BSS network that are not central stations are called terminals, also called non-AP STAs, and terminals and non-AP STAs are collectively referred to as STAs.
  • terminals also called non-AP STAs
  • STAs terminals and non-AP STAs
  • a STA cannot detect other STAs that are far away from it, and the two are hidden nodes of each other.
  • FIG2 is an interactive schematic diagram of a communication method according to an embodiment of the present disclosure. As shown in FIG2 , the method includes:
  • Step 201 The TXOP initiator 102 sends a first radio frame; the first radio frame includes a first duration.
  • TXOP refers to a bounded time period during which a device (such as an AP or STA) can transmit a specific communication category.
  • a STA obtains a TXOP through competition. Once a TXOP is obtained, the STA can transmit frames of a specific communication category within the TXOP; frames can specifically be data frames, control frames, and management frames.
  • the device obtains a TXOP through channel competition, the device is called a TXOP holder.
  • the TXOP holder sends frames to other devices.
  • the device does not obtain a TXOP.
  • the device is called a TXOP responder.
  • the TXOP holder is called a TXOP initiator.
  • STA or AP may support other wireless communication media in addition to WiFi wireless communication media, such as Bluetooth (BT), New Radio (NR), Ultra Wide Band (UWB), Zigbee, etc.
  • WiFi wireless communication media such as Bluetooth (BT), New Radio (NR), Ultra Wide Band (UWB), Zigbee, etc.
  • multiple wireless communication media will cause interference when using the same frequency for communication, that is, co-frequency interference.
  • BT Bluetooth
  • NR New Radio
  • UWB Ultra Wide Band
  • Zigbee Zigbee
  • multiple wireless communication media will cause interference when using the same frequency for communication, that is, co-frequency interference.
  • a device is simultaneously performing communication services of two or more wireless communication media at a certain moment. Communication interference will occur at the same time.
  • Co-channel interference will reduce the throughput of the system, increase communication delay, and is not conducive to the transmission of communication services. Therefore, in order to prevent the communication services of other communication media from interfering with the current communication medium of the device, the co-located interference information element is
  • the co-located interference information element is used to describe the periodic communication service interference existing in the system and the communication status of the communication equipment in the system.
  • periodic communication service interference and non-periodic communication service interference.
  • non-periodic communication service interference can be, for example, sudden communication service interference, and the device cannot predict the sudden communication service interference through the co-located interference information element.
  • TXOP there are a TXOP initiator and a TXOP responder.
  • the TXOP initiator can be a STA or an AP.
  • the first wireless frame includes a request to send (RTS) frame or a multi-user request to send (MU RTS) frame; when the TXOP initiator is a STA, the STA sends an RTS frame to the TXOP responder (AP) after obtaining the TXOP transmission opportunity.
  • RTS request to send
  • MU RTS multi-user request to send
  • the RTS frame is used to reserve the right to use the communication medium for use by the TXOP responder.
  • the first duration field of the RTS frame carries information of a first duration, and the first duration is the communication time in the TXOP allocated by the TXOP initiator to the TXOP responder.
  • the AP can send a MU RTS frame to at least two TXOP responders (for example, STAs), or send an RTS frame to only one STA.
  • the duration field of the RTS frame or the MU RTS frame carries information about the first duration, which is the communication time in the TXOP allocated by the TXOP initiator to the TXOP responder.
  • the first duration may be explicitly indicated in the first duration field, for example, the first duration field directly carries the time length value; the first duration may also be implicitly indicated in the first duration field, for example, the first duration field carries an index value of the time length value.
  • Step 202 The TXOP responder 101 receives a first radio frame.
  • the TXOP responder may be a STA or an AP.
  • the STA receives a MU RTS frame or an RTS frame, obtains the indication information of the first duration carried in the RTS frame or the MU-RTS frame, and determines the communication time allocated by the TXOP initiator to the TXOP responder.
  • Step 203 The TXOP responder 101 determines a second radio frame; wherein the second radio frame includes a second duration, and the second duration is less than or equal to the first duration.
  • the TXOP responder when the TXOP responder receives the first wireless frame, such as an RTS frame or an MU-RTS frame, there may be communication services of other wireless communication media during the first duration, and other wireless communication media include but are not limited to BT, NR, UWB and Zigbee. Therefore, the TXOP responder determines a second wireless frame, and the second wireless frame is, for example, a clear to send (CTS) frame. Therefore, in the process of determining the CTS frame, the TXOP responder carries a second duration in the CTS frame, and the second duration indicates the duration of the CTS, that is, the usage time of the WiFi communication medium occupied by the TXOP responder.
  • CTS clear to send
  • the second duration is less than or equal to the first duration.
  • the value of the second duration field in the CTS frame is set to be smaller than the value of the first duration field, indicating that the TXOP responder needs to communicate with services on other wireless communication media during the first duration, that is, the TXOP responder will occupy part of the time during the first duration for communication services on other wireless communication media.
  • the Wi-Fi communication services and services on other wireless communication media can be isolated in time to avoid interference between the two, thereby reducing interference caused by bursty communications on other wireless communication media to Wi-Fi communications, improving system throughput, and making it suitable for UHR transmission requirements.
  • the value of the second duration field in the CTS frame can be set equal to the value of the first duration field, so that all Wi-Fi communications are carried out within the time allocated by the TXOP initiator to the TXOP responder, thereby effectively utilizing network transmission resources.
  • Step 204 The TXOP responder 101 sends the second radio frame.
  • the TXOP responder sends a second radio frame to the TXOP initiator to indicate the length of time the TXOP responder will occupy the radio channel.
  • the second duration is less than the first duration, indicating that the TXOP responder has communication services of other wireless communication media within the first duration, that is, the TXOP responder will occupy part of the time within the first duration for communication services of other wireless communication media, and isolate the Wi-Fi communication services from the services of other wireless communication media in terms of time to avoid interference between the two.
  • the second radio frame further includes a first control field
  • the second duration is equal to the first duration, and the flag bit in the first control field is a reserved bit;
  • the second duration is shorter than the first duration, and the first control field includes communication time information of the TXOP responder performing communication services of other wireless communication media within the first duration.
  • the second duration in the second radio frame is equal to the first duration, indicating that the TXOP responder is not interfered by other communication media within the first duration. Therefore, in order to ensure the consistency of the communication protocol, the identification bit in the first control field of the second radio frame is set to a reserved bit.
  • the first control field of the CTS frame carries communication time information of the TXOP responder performing communication services of other wireless communication media within the first duration.
  • the communication time information of the communication service of other wireless communication media performed by the TXOP responder within the first duration includes the following cases 1 to 3:
  • Case 1 The third duration of the communication service within the first duration covers the middle time period of the first duration.
  • the time indicated by the first control field of the second wireless frame covers the middle part of the time indicated by the first duration field of the first wireless frame (RTS frame or MU-RTS frame), and the communication time information includes the start time information and end time information of the communication service.
  • the first duration is between start time 1 and end time 1
  • the third duration is between start time 2 and end time 2
  • the third duration covers the middle time period of the first duration.
  • the start time information and the end time information of the third duration need to be recorded in the first control field, so that the TXOP initiator can determine the specific time of the Wi-Fi communication service (ie, the second duration), that is, the time period between start time 1 and start time 2, and the time period between end time 2 and end time 1.
  • Case 2 the third duration covers the second half of the first duration.
  • the time indicated by the first control field of the second radio frame is the second half of the time indicated by the first duration field of the first radio frame (RTS frame or MU-RTS frame), then the communication time information includes: the start time information of the communication service and/or the third duration occupied by the communication service within the first duration; wherein the third duration is the difference between the first duration and the second duration.
  • the actual communication duration of the communication service may be longer than the third duration.
  • the first control field can also carry the actual communication duration information of the communication service, which is not limited by the embodiment of the present disclosure.
  • the first duration is between start time 1 and end time 1
  • the third duration is between start time 2 and end time 2
  • the third duration covers the second half of the first duration.
  • the first control field needs to record at least one of the start time information of the communication service (start time 2) and the third duration occupied by the communication service within the first duration.
  • the third duration can be determined based on the start time 2 and the end time 1, and the time between the start time 2 and the end time 1 is the third duration.
  • the second duration can be determined according to the first duration and the third duration, and the difference between the first duration and the third duration is the second duration; in addition, the start time 2 can be obtained by reversing the third duration by the end time 1.
  • the first control field may also record the start time information and the end time information of the communication service, which is not limited in the embodiment of the present disclosure.
  • Case three the third duration covers the first half of the first duration, that is, the second duration is the remaining duration after deducting the third duration from the first duration.
  • the time indicated by the first control field of the second radio frame covers the first half of the time indicated by the first duration field of the first radio frame (RTS frame or MU-RTS frame), then the communication time information includes: the end time information of the communication service and/or the third duration occupied by the communication service within the first duration; wherein the third duration is the difference between the first duration and the second duration.
  • the actual communication duration of the communication service may be longer than the third duration.
  • the first control field can also carry the actual communication duration information of the communication service, which is not limited by the embodiment of the present disclosure.
  • the first duration is between start time 1 and end time 1
  • the third duration is between start time 2 and end time 2
  • the third duration covers the first half of the first duration.
  • the first control field needs to record at least one of the end time information (end time 2) of the communication service and the third duration occupied by the communication service within the first duration. kind.
  • the third duration can be determined based on the start time 1 and the end time 2, and the time between the start time 1 and the end time 2 is the third duration.
  • the second duration can be determined based on the first duration and the third duration, and the difference between the first duration and the third duration is the second duration; in addition, by pushing the third duration forward from the start time 1, the end time 2 can be obtained, and the end time 2 is used as the start time of the second duration.
  • the first control field may also record the end time information of the communication service and the end time information (the time point in the CTS frame is consistent with the time point in the MU-RTS/RTS frame to maintain clock synchronization), which is not limited in comparison with the embodiment of the present disclosure.
  • the method further comprises:
  • the second link in the NSTR link stops communicating during the communication duration of the communication service.
  • the TXOP responder needs to perform multi-link (Multi-Link Operation, MLO) communication in the NSTR link, and the TXOP responder has communication services of other wireless communication media under the first link in the NSTR link, in order to ensure the non-simultaneous transceiver performance of the NSTR link, the second link in the NSTR link needs to stop communication. Even if the TXOP responder has communication services of other wireless communication media within the first duration, the non-simultaneous transceiver performance of the NSTR link must be ensured, that is, if one of the links in the NSTR link has communication services of other wireless communication media, no wireless communication is performed under the other link in the NSTR link.
  • MLO Multi-Link Operation
  • the co-located interference information element is used to describe the periodic communication service interference existing in the system.
  • a mechanism for describing the non-periodic communication service interference is established. This mechanism is then used to reduce the probability of sudden communication services interfering with WiFi communications, thereby improving the system throughput and reducing latency.
  • the method before sending the second radio frame, the method further includes:
  • First identification information is sent to the TXOP initiator, where the first identification information identifies that the TXOP responder supports communication services for transmitting other wireless communication media.
  • the TXOP responder after receiving the RTS frame or the MU-RTS frame, the TXOP responder sends first identification information to the TXOP initiator, where the first identification information identifies whether the TXOP responder supports communication services transmitted over other wireless communication media.
  • the names of information, etc. are not limited to the names recorded in the embodiments, and terms such as “information”, “message”, “signal”, “signaling”, “report”, “configuration”, “indication”, “instruction”, “command”, “channel”, “parameter”, “domain”, “field”, “symbol”, “codepoint”, “bit”, “data”, “program”, and “chip” can be used interchangeably.
  • terms such as “moment”, “time point”, “time”, and “time position” can be interchangeable, and terms such as “duration”, “period”, “time window”, “window”, and “time” can be interchangeable.
  • wireless access scheme and waveform may be used interchangeably.
  • terms such as “certain”, “preset”, “preset”, “set”, “indicated”, “some”, “any”, and “first” can be interchangeable, and "specific A”, “preset A”, “preset A”, “set A”, “indicated A”, “some A”, “any A”, and “first A” can be interpreted as A pre-defined in a protocol, etc., or as A obtained through setting, configuration, or indication, etc., and can also be interpreted as specific A, some A, any A, or first A, etc., but is not limited to this.
  • the determination or judgment can be performed by a value represented by 1 bit (0 or 1), 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 to this.
  • not expecting to receive can be interpreted as not receiving on time domain resources and/or frequency domain resources, or as not performing subsequent processing on the data after receiving the data; "not expecting to send” can be interpreted as not sending, or as sending but not expecting the recipient to respond to the sent content.
  • step 201 may be implemented as an independent embodiment
  • step 202 may be implemented as an independent embodiment
  • step 203 may be implemented as an independent embodiment
  • step 204 may be implemented as an independent embodiment
  • the combination of step 201 and step 202 may be implemented as an independent embodiment
  • the combination of step 202 and step 203 can be implemented as an independent embodiment
  • the combination of step 203 and step 204 can be implemented as an independent embodiment, but are not limited thereto.
  • FIG. 6 is one of the flowchart diagrams of the communication method according to the embodiment of the present disclosure.
  • the above method may be applied to the TXOP responder 101, and the above method includes:
  • Step 601 the TXOP responder 101 receives a first radio frame; wherein the first radio frame includes a first duration;
  • Step 602 The TXOP responder 101 sends first identification information to the TXOP initiator 102, where the first identification information identifies that the TXOP responder supports communication services for transmitting other wireless communication media.
  • Step 603 The TXOP responder 101 determines a second radio frame; wherein the second radio frame includes a second duration, and the second duration is less than or equal to the first duration;
  • Step 604 The TXOP responder 101 sends the second radio frame.
  • the second duration is less than the first duration, indicating that the TXOP responder has communication services on other wireless communication media during the first duration.
  • the second radio frame further includes a first control field
  • the second duration is equal to the first duration, and the flag bit in the first control field is a reserved bit;
  • the second duration is shorter than the first duration, and the first control field includes communication time information of the TXOP responder performing communication services of other wireless communication media within the first duration.
  • the communication time information includes at least one of the following:
  • the start time information and the end time information of the communication service are The start time information and the end time information of the communication service.
  • the end time information of the communication service and/or the third duration are the end time information of the communication service and/or the third duration.
  • the method further includes:
  • the second link in the NSTR link stops communicating during the communication duration of the communication service.
  • the first radio frame includes: a request to send an RTS frame or a multi-user request to send an MU-RTS frame;
  • the second radio frame includes a Clear to Send (CTS) frame.
  • CTS Clear to Send
  • step 601 may be implemented as an independent embodiment
  • step 602 may be implemented as an independent embodiment
  • step 603 may be implemented as an independent embodiment
  • step 604 may be implemented as an independent embodiment
  • the combination of step 603 and step 604 may be implemented as an independent embodiment, but is not limited thereto.
  • FIG. 7 is a second flowchart of a communication method according to an embodiment of the present disclosure.
  • the above method may be applied to 102 , and the above method includes:
  • Step 701 the TXOP initiator 102 sends a first radio frame to the TXOP responder 101; wherein the first radio frame includes a first duration;
  • Step 702 The TXOP initiator 102 receives first identification information sent by the TXOP responder 101, where the first identification information identifies that the TXOP responder supports communication services for transmitting other wireless communication media;
  • Step 703 The TXOP initiator 102 receives a second radio frame replied by the TXOP responder 101; wherein the second radio frame includes a second duration, and the second duration is less than or equal to the first duration.
  • the second duration is less than the first duration, indicating that the TXOP responder has communication services on other wireless communication media during the first duration.
  • the second radio frame includes a first control field
  • the second duration is equal to the first duration, and the flag bit in the first control field is a reserved bit;
  • the second duration is shorter than the first duration, and the first control field includes communication time information of the TXOP responder performing communication services of other wireless communication media within the first duration.
  • the communication time information includes at least one of the following:
  • the start time information and the end time information of the communication service are The start time information and the end time information of the communication service.
  • the end time information of the communication service and/or the third duration are the end time information of the communication service and/or the third duration.
  • the method further includes:
  • the second link in the NSTR link stops communicating within the communication duration of the communication service.
  • the method before receiving the second radio frame replied by the TXOP responder, the method further includes:
  • First identification information sent by the TXOP responder is received, where the first identification information identifies that the TXOP responder supports communication services for transmitting other wireless communication media.
  • the first radio frame includes: a request to send an RTS frame or a multi-user request to send an MU-RTS frame;
  • the second radio frame includes a Clear to Send (CTS) frame.
  • CTS Clear to Send
  • step 701 may be implemented as an independent embodiment
  • step 702 may be implemented as an independent embodiment
  • step 703 may be implemented as an independent embodiment.
  • the embodiments of the present disclosure also propose a device for implementing any of the above methods, for example, a device is proposed, the above device includes a unit or module for implementing each step performed by the terminal in any of the above methods.
  • a device is also proposed, including a unit or module for implementing each step performed by a network device (such as an access network device, a core network function node, a core network device, etc.) in any of the above methods.
  • a network device such as an access network device, a core network function node, a core network device, etc.
  • the division of the units or modules in the above device is only a division of logical functions, which can be fully or partially integrated into one physical entity or physically separated in actual implementation.
  • the units or modules in the device can be implemented in the form of a processor calling software: for example, the device includes a processor, the processor is connected to a memory, and instructions are stored in the memory.
  • the processor calls the instructions stored in the memory to implement any of the above methods or implement the functions of the units or modules of the above device, wherein the processor is, for example, a general-purpose processor, such as a central processing unit (CPU) or a microprocessor, and the memory is a memory inside the device or a memory outside the device.
  • CPU central processing unit
  • microprocessor a microprocessor
  • the units or modules in the device may be implemented in the form of hardware circuits, and the functions of some or all of the units or modules may be implemented by designing the hardware circuits.
  • the hardware circuits may be understood as one or more processors; for example, in one implementation, the hardware circuits are application-specific integrated circuits (ASICs), and the functions of some or all of the above units or modules may be implemented by designing the logical relationship of the components in the circuits; for another example, in another implementation, the hardware circuits may be implemented by programmable logic devices (PLDs), and Field Programmable Gate Arrays (FPGAs) may be used as an example, which may include a large number of logic gate circuits, and the connection relationship between the logic gate circuits may be configured by configuring the configuration files, thereby implementing the functions of some or all of the above units or modules. All units or modules of the above devices may be implemented in the form of software called by the processor, or in the form of hardware circuits, or in the form of software called by the processor, and the remaining part may be implemented in
  • the processor is a circuit with signal processing capability.
  • the processor may be a circuit with instruction reading and execution capability, such as a central processing unit (CPU), a microprocessor, a graphics processing unit (GPU) (which may be understood as a microprocessor), or a digital signal processor (DSP).
  • the processor may implement certain functions through the logical relationship of hardware circuits, and the logical relationship of the above hardware circuits may be fixed or reconfigurable, such as a processor being an application-specific integrated circuit (ASIC).
  • the process of the processor loading a configuration document to implement 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.
  • 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.
  • NPU neural network processing unit
  • TPU tensor processing unit
  • DPU deep learning processing unit
  • Fig. 8 is a schematic diagram of the structure of a TXOP responder proposed in an embodiment of the present disclosure.
  • the TXOP responder 800 may include at least one of: a first receiving module 801, a determining module 802, a first sending module 803, and the like.
  • the above-mentioned first receiving module 801 is used to receive a first wireless frame; wherein the first wireless frame includes a first duration; the determination module 802 is used to determine a second wireless frame; wherein the second wireless frame includes a second duration, and the second duration is less than or equal to the first duration; the first sending module 803 is used to send the second wireless frame.
  • the first receiving module 801 is used to execute at least one of the communication steps (such as step 202 and step 601, but not limited thereto) executed by the TXOP responder 101 in any of the above methods, which will not be described in detail here.
  • the determining module 802 is used to execute at least one of step 203 and step 603, which will not be described in detail here.
  • the first sending module 803 is used to execute at least one of step 204 and step 604, which will not be described in detail here.
  • FIG9 is a schematic diagram of the structure of a TXOP initiator proposed in an embodiment of the present disclosure.
  • a TXOP initiator 900 may include: a second sending module 901 and a second receiving module 902 .
  • the second sending module 901 is used to send a first wireless frame to a TXOP responder; wherein the first wireless frame includes a first duration; the second receiving module 902 is used to receive a second wireless frame replied by the TXOP responder; wherein the second wireless frame includes a second duration, and the second duration is less than or equal to the first duration.
  • the second sending module 901 is used to execute at least one of the communication steps (such as step 201, step 701, but not limited to this) performed by the TXOP initiator 102 in any of the above methods, which will not be repeated here.
  • the second receiving module 902 is used to execute the communication step 703 performed by the TXOP initiator 102 in any of the above methods, which will not be repeated here.
  • FIG10 is a schematic diagram of the structure of a terminal 1000 (e.g., user equipment, etc.) proposed in an embodiment of the present disclosure.
  • the terminal 1000 may be a chip, a chip system, or a processor, etc. that supports a network device to implement any of the above methods, or may be a chip, a chip system, or a processor, etc. that supports a terminal to implement any of the above methods.
  • the terminal 1000 may be used to implement the method described in the above method embodiment, and the details may refer to the description in the above method embodiment.
  • the terminal 1000 includes one or more processors 1001.
  • the processor 1001 may be a general-purpose processor or a dedicated processor, for example, a baseband processor or a central processing unit.
  • the baseband processor may be used to process the communication protocol and the communication data
  • the central processing unit may be used to control the communication device (such as a base station, a baseband chip, a terminal device, a terminal device chip, a DU or a CU, etc.), execute a program, and process the data of the program.
  • the terminal 1000 is used to execute any of the above methods.
  • the terminal 1000 further includes one or more memories 1002 for storing instructions.
  • the memory 1002 may also be located outside the terminal 1000.
  • the terminal 1000 further includes one or more transceivers 1004.
  • the transceiver 1004 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 601, step 602, step 604, step 701, step 702, step 703, but not limited thereto), and the processor 1001 performs at least one of the other steps (for example, step 203, step 603, but not limited thereto).
  • the transceiver may include a receiver and/or a transmitter, and the receiver and the transmitter may be separate or integrated.
  • the terms such as transceiver, transceiver unit, transceiver, transceiver circuit, etc. may be replaced with each other, the terms such as transmitter, transmission unit, transmitter, transmission circuit, etc. may be replaced with each other, and the terms such as receiver, receiving unit, receiver, receiving circuit, etc. may be replaced with each other.
  • the terminal 1000 may include one or more interface circuits 1003.
  • the interface circuit 1003 is connected to the memory 1002, and the interface circuit 1003 may be used to receive signals from the memory 1002 or other devices, and may be used to send signals to the memory 1002 or other devices.
  • the interface circuit 1003 may read instructions stored in the memory 1002 and send the instructions to the processor 1001.
  • the terminal 1000 described in the above embodiments may be a communication device such as a user device, but the scope of the terminal 1000 described in the present disclosure is not limited thereto, and the structure of the terminal 1000 may not be limited by FIG. 10.
  • the communication device may be an independent device or may be part of a larger device.
  • 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 including a storage device for storing data, programs, or a plurality of other ICs; storage components; (3) ASIC, such as modems; (4) modules that can be embedded in other devices; (5) receivers, terminal devices, intelligent terminal devices, cellular phones, wireless devices, handheld devices, mobile units, vehicle-mounted devices, network devices, cloud devices, artificial intelligence devices, etc.; (6) others, etc.
  • Fig. 11 is a schematic diagram of the structure of a chip 1100 provided in an embodiment of the present disclosure.
  • the terminal 1000 may be a chip or a chip system
  • the chip 1100 includes one or more processors 1101 , and the chip 1100 is configured to execute any of the above methods.
  • the chip 1100 further includes one or more 1103.
  • the interface circuit 1103 is connected to the memory 1102, and the interface circuit 1103 can be used to receive signals from the memory 1102 or other devices, and the interface circuit 1103 can be used to send signals to the memory 1102 or other devices.
  • the interface circuit 1103 can read the instructions stored in the memory 1102 and send the instructions to the processor 1101.
  • the interface circuit 1103 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 601, step 602, step 604, step 701, step 702, step 703, but not limited to these), and the processor 1101 executes at least one of the other steps (for example, step 203, step 603, but not limited to these).
  • interface circuit interface circuit
  • transceiver pin transceiver
  • the chip 1100 further includes one or more memories 1102 for storing instructions. Alternatively, all or part of the memory 1102 may be outside the chip 1100.
  • the present disclosure also proposes a storage medium, on which instructions are stored, and when the instructions are executed on the terminal 1000, the terminal 1000 executes any of the above methods.
  • the storage medium is an electronic storage medium.
  • the storage medium is a computer-readable storage medium, but is not limited thereto, and it may also be a storage medium readable by other devices.
  • the storage medium may be a non-transitory storage medium, but is not limited thereto, and it may also be a temporary storage medium.
  • the present disclosure also proposes a program product, and when the program product is executed by the terminal 1000, the terminal 1000 executes any of the above methods.
  • the program product is a computer program product.
  • the present disclosure also proposes a computer program, which, when executed on a computer, causes the computer to execute any one of the above methods.

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Abstract

Des modes de réalisation de la présente divulgation concernent un procédé de communication, un dispositif de communication et un système de communication. Le procédé de communication consiste à : recevoir une première trame radio, la première trame radio comprenant une première durée ; déterminer une seconde trame radio, la seconde trame radio comprenant une seconde durée, et la seconde durée étant inférieure ou égale à la première durée ; et envoyer la seconde trame radio. De cette manière, la probabilité d'interférence d'autres services de communication sur le service de communication actuel est réduite, améliorant le débit du système, et répondant aux exigences de transmission UHR.
PCT/CN2023/131115 2023-11-10 2023-11-10 Procédé de communication, dispositif de communication et système de communication Pending WO2025097447A1 (fr)

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US20230209602A1 (en) * 2023-03-03 2023-06-29 Gil Meyuhas Clear-to-send duration field adjustments
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US20200267766A1 (en) * 2019-02-15 2020-08-20 Yongho Seok Signaling individualized transmission duration threshold for rts/cts
CN115702597A (zh) * 2020-04-14 2023-02-14 现代自动车株式会社 无线局域网系统中的直接通信的方法和装置
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