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WO2025086101A1 - Procédé de transmission de relais de données, dispositif de communication, et système de communication - Google Patents

Procédé de transmission de relais de données, dispositif de communication, et système de communication Download PDF

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Publication number
WO2025086101A1
WO2025086101A1 PCT/CN2023/126258 CN2023126258W WO2025086101A1 WO 2025086101 A1 WO2025086101 A1 WO 2025086101A1 CN 2023126258 W CN2023126258 W CN 2023126258W WO 2025086101 A1 WO2025086101 A1 WO 2025086101A1
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WO
WIPO (PCT)
Prior art keywords
frame
data
relay
data frame
sent
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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Application number
PCT/CN2023/126258
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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/CN2023/126258 priority Critical patent/WO2025086101A1/fr
Priority to CN202380011697.XA priority patent/CN120266546A/zh
Publication of WO2025086101A1 publication Critical patent/WO2025086101A1/fr
Pending legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/14—Relay systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. Transmission Power Control [TPC] or power classes
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Definitions

  • the present disclosure relates to the field of communication technology, and in particular to a data relay transmission method, communication equipment and a communication system.
  • Ultra High Reliability UHR
  • WLAN Wireless Local Area Networks
  • SNR signal-to-noise ratio
  • the low-latency service transmission mechanism will be further enhanced and support multi-connection scenarios.
  • data relay may be used in UHR to transmit data frames; and in the data relay scenario, the block acknowledgment (BA) mechanism needs to be supported; therefore, it is necessary to provide an implementation method of the BA mechanism in the data relay scenario to meet the transmission requirements of UHR.
  • SNR signal-to-noise ratio
  • the embodiments of the present disclosure provide a data relay transmission method, a communication device, and a communication system to provide an implementation method of a BA mechanism in a data relay scenario.
  • an embodiment of the present disclosure provides a data relay transmission method, which is applied to a source device, and the method includes:
  • the first data frame includes first identification information, and the first identification information identifies that the source device enters a sleep mode after receiving a first BA frame sent by a relay device; wherein the first BA frame is sent by the relay device in response to a second BA frame; and the second BA frame is used to confirm that the target device receives the first data frame forwarded by the relay device;
  • the first data frame is sent.
  • an embodiment of the present disclosure further provides a data relay transmission method, which is applied to a relay device, and the method includes:
  • the first data frame includes first identification information, and the first identification information identifies that the source device enters a sleep mode after receiving a first BA frame sent by the relay device; wherein the first BA frame is sent by the relay device in response to a second BA frame; and the second BA frame is used to confirm that the target device has received the first data frame forwarded by the relay device.
  • an embodiment of the present disclosure further provides a communication device, wherein the communication device is a source device, and the source device includes:
  • a determination module configured to determine a first data frame; wherein the first data frame includes first identification information, and the first identification information identifies that the source device enters a sleep mode after receiving a first BA frame sent by a relay device; wherein the first BA frame is sent by the relay device in response to a second BA frame; and the second BA frame is used to confirm that the target device receives the first data frame forwarded by the relay device;
  • a sending module is used for the first data frame.
  • an embodiment of the present disclosure further provides a communication device, the communication device relay device, the relay device comprising:
  • a receiving module used for receiving a first data frame; wherein the first data frame includes first identification information, and the first identification information identifies that the source device enters a sleep mode after receiving a first BA frame sent by the relay device; wherein the first BA frame is sent by the relay device in response to a second BA frame; and the second BA frame is used to confirm that the target device has received the first data frame forwarded by the relay device.
  • an embodiment of the present disclosure further provides a communication device, wherein the communication device is a source device, including:
  • processors one or more processors
  • the source device is used to execute the data relay transmission method described in the embodiment of the present disclosure.
  • processors one or more processors
  • the relay device is used to execute the data relay transmission method described in the embodiment of the present disclosure.
  • the embodiments of the present disclosure also provide a communication system, including a source device and a relay device; wherein the source device is configured to implement the data relay transmission method described in the embodiments of the present disclosure, and the relay device is configured to implement the data relay transmission method described in the embodiments of the present disclosure.
  • the embodiment of the present disclosure further provides a storage medium storing instructions.
  • the instructions When the instructions are executed on a communication device, the communication device executes the data relay transmission method as described in the embodiment of the present disclosure.
  • the source device carries first identification information in the first data frame, and the first identification information is used to identify:
  • the source device enters sleep mode after receiving the first BA frame sent by the relay device; wherein the first BA frame is sent by the relay device in response to the second BA frame; the second BA frame is used to confirm that the target device has received the first data frame forwarded by the relay device to transmit uplink data or downlink data, thereby improving the data transmission rate and reducing the transmission delay.
  • FIG1 is an exemplary schematic diagram of the architecture of a communication system provided according to an embodiment of the present disclosure
  • FIG2 is one of exemplary interaction diagrams of a method provided according to an embodiment of the present disclosure.
  • FIG3 is a second exemplary interaction diagram of a method provided according to an embodiment of the present disclosure.
  • FIG4 is a third exemplary interaction diagram of a method provided according to an embodiment of the present disclosure.
  • FIG5 is a schematic diagram of a flow chart of a data relay transmission method according to an embodiment of the present disclosure
  • FIG6 is a second flow chart of the data relay transmission method provided in an embodiment of the present disclosure.
  • FIG7 is a schematic diagram of a structure of a communication device according to an embodiment of the present disclosure.
  • FIG8 is a second schematic diagram of the structure of the communication device proposed in the embodiment of the present disclosure.
  • FIG9 is a schematic diagram of the structure of a terminal provided in an embodiment of the present disclosure.
  • FIG. 10 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 data relay transmission method, a communication device, and a communication system.
  • an embodiment of the present disclosure provides a data relay transmission method, which is applied to a source device.
  • the method includes:
  • the first data frame includes first identification information, and the first identification information identifies that the source device enters a sleep mode after receiving a first BA frame sent by a relay device; wherein the first BA frame is sent by the relay device in response to a second BA frame; and the second BA frame is used to confirm that the target device receives the first data frame forwarded by the relay device;
  • the first data frame is sent.
  • the source device enters the sleep mode after receiving the first BA frame sent by the relay device.
  • the first BA frame is sent by the relay device in response to the second BA frame fed back by the target device, so that during the data relay transmission process, the source device can receive the BA confirmation of the target device receiving the data frame fed back by the relay device after sending the data frame, thereby satisfying the need of the source device to understand the reception status of the final data frame by the target device.
  • the first identification information includes a first identification bit and a second identification bit
  • the first flag bit identifies whether the source device enters a power saving state after the first data frame is sent, and the second flag bit identifies whether the first data frame is the last frame.
  • the source device identifies when to enter the power saving state and the data frame sending state through the first identification bit and the second identification bit in the identification information, thereby improving the reliability of transmission.
  • the first flag bit indicates that the source device enters a power saving state after the first data frame is sent, and the second flag bit indicates that the first data frame is the last frame.
  • the first identification information indicates that the source device enters a sleep state after receiving the first BA frame and the second BA frame fed back by the relay device.
  • the source device identifies through the first identification information that it enters the sleep state after receiving the first BA frame and the second BA frame fed back by the relay device, thereby improving the sleep mechanism of the source device in data relay transmission.
  • the method further includes:
  • the third BA frame is used to confirm that the relay device has received the first data frame sent by the source device.
  • the source device receives the third BA frame fed back by the relay device.
  • the third BA frame can feed back the reception status of the data frame sent by the source device to the relay device, which is used to confirm that the relay device has received the data frame sent by the source device, thereby improving the integrity and reliability of data relay transmission.
  • the method further includes:
  • the first data frame is retransmitted, it is relayed again within the TXOP shared by the access point device.
  • the access point device may obtain a relay transmission opportunity and share it with the source device, so that the source device performs relay transmission again within the TXOP, thereby ensuring the transmission of low-latency service data.
  • an embodiment of the present disclosure provides a data relay transmission method, which is applied to a relay device, and the method includes:
  • the first data frame includes first identification information, and the first identification information identifies that the source device enters a sleep mode after receiving a first BA frame sent by the relay device; wherein the first BA frame is sent by the relay device in response to a second BA frame; and the second BA frame is used to confirm that the target device has received the first data frame forwarded by the relay device.
  • the first identification information includes a first identification bit and a second identification bit
  • the first flag bit identifies whether the source device enters a power saving state after the first data frame is sent, and the second flag bit identifies whether the first data frame is the last frame.
  • the first flag bit indicates that the source device enters a power saving state after the first data frame is sent, and the second flag bit indicates that the first data frame is the last frame.
  • the first identification information indicates that the source device enters the sleep state after receiving the first BA frame and the second BA frame fed back by the relay device.
  • the method after receiving the first data frame, the method further includes:
  • the third BA frame is used to confirm that the relay device has received the first data frame sent by the source device;
  • the first data frame is forwarded to the target device.
  • the method after forwarding the first data frame to the target device, the method includes:
  • the first BA frame is sent to the source device in response to the second BA frame.
  • the method further includes:
  • the first data frame is retransmitted, it is relayed again within the TXOP shared by the access point device.
  • an embodiment of the present disclosure further provides a communication device, which is a source device, and the source device includes at least one of a determination module and a sending module; wherein the source device is used to execute an optional implementation method of the first aspect.
  • an embodiment of the present disclosure further provides a communication device, wherein the communication device is a relay device, comprising: a receiving module; wherein the above-mentioned relay device 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 source device, including:
  • processors one or more processors
  • the source device 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 relay device includes:
  • processors one or more processors
  • the relay device is used to execute the optional implementation method of the second aspect.
  • an embodiment of the present disclosure further provides a communication system, including a source device and a relay device; wherein the source device is configured to execute the optional implementation method as described in the first aspect, and the relay device is configured as 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.
  • the embodiments of the present disclosure provide a data relay transmission method, a communication device and a communication system.
  • the data relay transmission method and the signal transmission method, the wireless frame transmission method and other terms can be replaced with each other, and the information processing system, the communication system and other terms 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 source device (which can be a Station, STA or Access Point, AP) 101, a relay device (Relay STA) 102 and a target device 103.
  • a source device which can be a Station, STA or Access Point, AP
  • a relay device Relay STA
  • target device 103 a target device 103.
  • the source device 101 or the target device 103 can be an access point for a mobile terminal 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.
  • AP can be a terminal device or a network device with a wireless fidelity chip.
  • AP can support 802.11ax, 802.11be, 802.11ac, 802.11n, 802.11g, 802.11b and 802.11a, 802.11bf, 802.11bn And other WLAN standards, as well as support for the next generation 802.11 protocol, but not limited to these.
  • the source device 101, the relay device 102 or the target device 103 may be, for example, a wireless communication chip, a wireless sensor or a wireless communication terminal including a WiFi communication function.
  • the wireless communication terminal may be, for example, a mobile phone, a wearable device, an Internet of Things device supporting a WiFi communication function, a car with a WiFi communication function, a smart car, a tablet computer, a computer with a 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 a smart city, or a wireless terminal device in a smart home, but is not limited thereto.
  • VR virtual reality
  • AR augmented reality
  • the source device 101, the relay device 102 or the target device 103 may be a terminal device or a network device with a wireless fidelity (WiFi) chip.
  • the source device 101 or the relay device 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 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 data relay transmission method according to an embodiment of the present disclosure. As shown in FIG2 , the method includes:
  • Step 201 the source device 101 determines a first data frame; wherein the first data frame includes first identification information, and the first identification information identifies that the source device 101 enters a sleep mode after receiving a first BA frame sent by the relay device 102; wherein the first BA frame is sent by the relay device 102 in response to a second BA frame; and the second BA frame is used to confirm that the target device has received the first data frame forwarded by the relay device 102.
  • a relay transmission method may be used to transmit data frames; as an example, see Figure 3, during data relay transmission, the source device (Source, or sending device) transmits a relay data frame, such as PPDU-1, to the relay device (Relay) through a relay link; after the relay device performs necessary address filling on the relay data frame, it forwards the relay data frame (such as PPDU-2) to the destination device (Destination, or receiving device); in addition, the source device can also transmit data frames to the destination device through a direct link.
  • the relay end can also be an AP; for the sake of convenience, STA is introduced as the relay end in the following, but this does not constitute a limitation on the embodiment of the present disclosure.
  • relay transmission can also be divided into uplink transmission and downlink transmission.
  • the source device and relay device are STA
  • the target device is AP, that is, in a transmission opportunity (TXOP)
  • TXOP transmission opportunity
  • the STA sends the data frame to the relay STA, and then the relay STA forwards it to the target AP.
  • the source device is the AP
  • the relay device and target device are the STA; in a TXOP, the AP sends the data frame to the relay STA, and then the relay STA sends it to the target STA.
  • a Block Ack (BA) mechanism needs to be introduced.
  • the first one is the confirmation sent by the relay device 102 (Relay STA) to the source device 101 (AP), which is used to confirm the reception of the data frame sent by the AP to the Relay STA;
  • the second one is the confirmation sent by the target device 103 (target STA) to the Relay STA, which is used to confirm the reception of the data frame forwarded by the Relay STA to the target STA;
  • the third one is the BA forwarded by the Relay STA to the AP after the second BA is sent, which is used to notify the AP that the target STA has received the data frame transmitted by the Relay, that is, the data frame has arrived at its receiving end.
  • the uplink Relay transmission there may be three BA confirmations, the first one is the confirmation sent by the Relay STA to the source STA, the second one is the confirmation sent by the destination AP to the Relay STA, and the third one is the BA forwarded by the Relay STA to the source STA after the second BA is sent.
  • the source device When there are three BA confirmations, if the source device sets the power management (PM) bit of the frame control (FC) field of the media access control (MAC) layer frame header to 1 in the data frame it sends, it indicates that it has entered the sleep mode (PS) or energy saving mode; after forwarding the data frame of the source STA, the Relay STA can also set the PS bit of the FC field of the MAC frame header of the Relay STA to 1, indicating that the Relay STA will also enter the PS mode.
  • the source device sends the data frame and receives the first BA confirmation fed back by the Relay device, it enters the PS mode, which will cause the source device to not receive: the third BA confirmation.
  • the Relay device may not cache the forwarded data frame. If the source device enters the PS mode after sending the data frame to the Relay device, the source device will not be able to receive the third BA forwarded by the Relay device, and thus cannot understand the final reception of the data frame by the target device.
  • the source device 101 determines the first data frame, carries the first identification information in the first data frame, and identifies through the first identification information: the source device 101 enters the sleep mode after receiving the first BA frame sent by the relay device 102 (equivalent to the third BA mentioned above); wherein the first BA frame is sent by the relay device 102 in response to the second BA frame; the second BA frame is used to confirm that the target device receives the first data frame forwarded by the relay device 102.
  • the target device after the target device receives the first data frame forwarded by the relay device 102, it sends the second BA frame (equivalent to the second BA mentioned above) to the relay device 102; after the relay device 102 receives the second BA frame, it sends the first BA frame (equivalent to the third BA mentioned above) to the source device 101; in this way, after the source device 101 receives the first BA frame, it can confirm that the target device successfully receives the first data frame forwarded by the relay device 102.
  • the source device 101 can understand the reception of the final data frame by the target device, improve the reliability of data relay transmission and system throughput, and meet UHR requirements. It can be understood that the source device 101 can be an AP, and in the case of considering AP power saving, the source device 101 can also be a STA.
  • the first identification information includes a first identification bit and a second identification bit; the first identification bit identifies whether the source device 101 enters a power saving state after the first data frame is sent, and the second identification bit identifies whether the first data frame is the last frame.
  • the first identification information includes a first identification bit, which may be: a PM bit in the FC control field of the MAC frame header of the first data frame.
  • a PM bit is set to "0", indicating that the source device 101 does not enter a power saving state after the first data frame is sent.
  • the PM bit is set to "1”, indicating that the source device 101 enters a power saving state after the first data frame is sent.
  • the second identification bit can be the more data bit in the FC control field of the MAC frame header of the first data frame. For example, the more data bit is set to "0", indicating that the first data frame is not the last frame, that is, there are other data frames to be sent during the relay transmission; conversely, the more data bit is set to "1", indicating that the first data frame is the last frame, that is, there are no other data frames to be sent during the relay transmission.
  • the first identification bit indicates that the source device 101 enters a power saving state after the first data frame is sent, and the second identification bit indicates that the first data frame is the last frame. Then, the first identification information indicates that the source device 101 enters a sleep state after receiving the first BA frame and the second BA frame fed back by the relay device 102.
  • the first identification bit indicates that the source device 101 enters a power saving state after the first data frame is sent
  • the second identification bit indicates that the first data frame is the last frame, that is, the first identification information identifies that the current data frame is the last frame. Then, after the source device 101 receives the first BA frame and the second BA frame fed back by the relay device 102, it confirms that the target device has successfully received the first data frame forwarded by the relay device 102, and can enter a sleep state.
  • Step 202 the source device 101 sends the first data frame to the relay device 102;
  • the relay device 102 is a Relay STA that maintains a communication connection with the source device 101.
  • the source device 101 sends a first data frame to the relay device 102, requesting the relay device 102 to forward the first data frame to the target device to transmit uplink data or downlink data, thereby increasing the data transmission rate and reducing the transmission delay.
  • the source device 101 sends the first data frame to the relay device 102 (Relay STA), and then sends it to the destination device (destination AP) through the relay device 102.
  • the source device 101 sends the first The data frame is sent to the relay device 102 (Relay STA), and then sent to the destination device (destination STA) through the relay device 102.
  • Step 203 the relay device 102 receives the first data frame
  • the relay device 102 receives the first data frame sent by the source device 101, obtains the first identification information in the first data frame, and then learns through the first identification information that the source device enters the sleep mode after receiving the first BA frame sent by the relay device.
  • the method further includes:
  • the third BA frame is used to confirm that the relay device 102 has received the first data frame sent by the source device 101 .
  • the relay device 102 After receiving the first data frame sent by the source device 101 , the relay device 102 feeds back a third BA frame to the source device 101 , where the third BA frame is used to confirm that the relay device has received the first data frame sent by the source device.
  • Step 204 The relay device 102 forwards the first data frame to the target device 103 .
  • Step 205 After receiving the first data frame, the target device 103 feeds back a second BA frame to the relay device 102.
  • the second BA frame is used to confirm that the target device has received the first data frame forwarded by the relay device.
  • Step 206 After receiving the second BA frame, the relay device 102 sends the first BA frame to the source device 101 .
  • the first BA frame is sent by the relay device in response to the second BA frame; the second BA frame is used to confirm that the target device has received the first data frame forwarded by the relay device. For example, after the relay device 102 sends the first data frame to the target device, the target device feeds back the second BA frame to the relay device 102. After the relay device 102 confirms that the second BA frame has been sent, it sends the first BA frame to the source device 101.
  • Step 207 After receiving the first BA frame sent by the relay device 102 , the source device 101 enters the sleep mode.
  • the source device 101 determines a first data frame and carries first identification information in the first data frame.
  • the first identification information identifies that: the source device 101 enters sleep mode after receiving the first BA frame sent by the relay device 102 (equivalent to the aforementioned third BA); wherein the first BA frame is sent by the relay device 102 in response to the second BA frame; and the second BA frame is used to confirm that the target device has received the first data frame forwarded by the relay device 102.
  • the source device 101 can understand the reception status of the final data frame by the target device, improve the reliability of data relay transmission and system throughput, and meet the UHR requirements.
  • the source device 101 can be an AP, and the source device 101 can also be a STA when considering AP power saving.
  • the disclosed embodiment improves the mechanism for the source device to enter the sleep mode during data relay transmission, improves the reliability of data relay transmission and system throughput, makes it suitable for UHR requirements, and improves spectrum utilization.
  • FIG. 4 shows an optional implementation of the embodiment of the present disclosure, including the following steps:
  • Step 401 the source device 101 sends the last frame and enters a sleep mode.
  • Step 402 After receiving the data frame, the relay device 102 sends a first BA frame to the source device 101 .
  • Step 403 the relay device 102 forwards the data frame to the target device 103. At this time, neither the source device 101 nor the relay device 102 enters the sleep mode.
  • Step 404 the target device 103 receives the data frame forwarded by the relay device 102 , and sends a second BA frame to the relay device 102 .
  • Step 405 the relay device 102 receives the second BA frame and sends a third BA frame (ie, the first BA) to the source device 101 .
  • the source device 101 and the relay device 102 may enter the sleep mode.
  • the method further comprises:
  • the first data frame is retransmitted, it is relayed again within the TXOP shared by the access point device.
  • the access point device may obtain a relay transmission opportunity and share it with the source device, so that the source device performs relay transmission again within the TXOP, thereby ensuring the transmission of low-latency service data.
  • 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.
  • wireless access scheme any wireless access scheme, waveform, etc. 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 can be implemented as an independent embodiment
  • step 202 can be implemented as an independent embodiment
  • step 203 can be implemented as an independent embodiment
  • step 204 can be implemented as an independent embodiment
  • step 207 can be implemented as an independent embodiment
  • the combination of step 201 and step 202 can be implemented as an independent embodiment
  • the combination of step 202 and step 203 can be implemented as an independent embodiment
  • the combination of step 201, 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
  • the combination of step 204 and step 205 can be implemented as an independent embodiment
  • the combination of step 206 and step 207 can be implemented as an independent embodiment, but is not limited thereto.
  • FIG. 5 is one of the flowchart diagrams of the data relay transmission method according to an embodiment of the present disclosure.
  • the above method may be applied to a source device 101, and the above method includes:
  • Step 501 determining a first data frame; wherein the first data frame includes first identification information, and the first identification information identifies that the source device enters a sleep mode after receiving a first BA frame sent by a relay device; wherein the first BA frame is sent by the relay device in response to a second BA frame; and the second BA frame is used to confirm that the target device receives the first data frame forwarded by the relay device;
  • Step 502 Send the first data frame.
  • the first identification information includes a first identification bit and a second identification bit
  • the first flag bit identifies whether the source device enters a power saving state after the first data frame is sent, and the second flag bit identifies whether the first data frame is the last frame.
  • the first flag bit indicates that the source device enters a power saving state after the first data frame is sent, and the second flag bit indicates that the first data frame is the last frame.
  • the first identification information indicates that the source device enters a sleep state after receiving the first BA frame and the second BA frame fed back by the relay device.
  • the method after sending the first data frame, the method further includes:
  • Step 503 Receive a third BA frame sent by the relay device; the third BA frame is used to confirm that the relay device has received the first data frame sent by the source device.
  • the method further includes:
  • Step 504 If the first data frame is retransmitted, relay transmission is performed again within the TXOP shared by the access point device.
  • step 501 may be implemented as an independent embodiment
  • step 502 may be implemented as an independent embodiment
  • step 503 may be implemented as an independent embodiment
  • step 504 may be implemented as an independent embodiment
  • the combination of step 501 and step 502 may be implemented as an independent embodiment
  • the combination of step 501, step 502 and step 503 may be implemented as an independent embodiment, but is not limited thereto.
  • FIG. 6 is a second flowchart of a data relay transmission method according to an embodiment of the present disclosure.
  • the above method may be applied to a relay device 102, and the above method includes:
  • Step 601 receiving a first data frame; wherein the first data frame includes first identification information, and the first identification information identifies that the source device enters a sleep mode after receiving a first BA frame sent by the relay device; wherein the first BA frame is sent by the relay device in response to a second BA frame; and the second BA frame is used to confirm that the target device has received the first data frame forwarded by the relay device.
  • the first identification information includes a first identification bit and a second identification bit
  • the first flag bit identifies whether the source device enters a power saving state after the first data frame is sent, and the second flag bit identifies whether the first data frame is the last frame.
  • the first flag bit indicates that the source device enters a power saving state after the first data frame is sent, and the second flag bit indicates that the first data frame is the last frame.
  • the first identification information indicates that the source device enters the sleep state after receiving the first BA frame and the second BA frame fed back by the relay device.
  • the method after receiving the first data frame, the method further includes:
  • Step 602 Send a third BA frame to the source device; the third BA frame is used to confirm that the relay device has received the first data frame sent by the source device;
  • the first data frame is forwarded to the target device.
  • the method after forwarding the first data frame to the target device, the method includes:
  • Step 603 receiving the second BA frame
  • the first BA frame is sent to the source device in response to the second BA frame.
  • the method further includes:
  • Step 604 If the first data frame is retransmitted, relay transmission is performed again within the TXOP shared by the access point device.
  • 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 601 and step 602 may be implemented as an independent embodiment
  • the combination of step 601, step 602 and step 603 may be implemented as an independent embodiment, but is not limited thereto.
  • 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 running 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); in another implementation, the processor may implement certain functions through the logical relationship of a hardware circuit, and the logical relationship of the above hardware circuit may be fixed or reconfigurable, such as a hardware circuit implemented by an application-specific integrated circuit (ASIC) or a programmable logic device (PLD), such as an FPGA.
  • ASIC application-specific integrated circuit
  • PLD programmable logic device
  • the process of the processor loading a configuration document to implement the hardware circuit configuration may 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 may also be a hardware circuit designed for artificial intelligence, which may be understood as an ASIC, such as a neural network processing unit (NPU), a tensor processing unit (TPU), or a deep learning processing unit (DPU). wait.
  • NPU neural network processing unit
  • TPU tensor processing unit
  • DPU deep learning processing unit
  • Fig. 7 is a schematic diagram of the structure of a source device according to an embodiment of the present disclosure.
  • a source device 700 may include at least one of a determination module 701, a sending module 702, and the like.
  • the above-mentioned determination module 701 is used to determine a first data frame; wherein, the first data frame includes first identification information, and the first identification information identifies that the source device enters a sleep mode after receiving a first BA frame sent by the relay device; wherein, the first BA frame is sent by the relay device in response to a second BA frame; and the second BA frame is used to confirm that the target device has received the first data frame forwarded by the relay device.
  • the sending module 702 is configured to send the first data frame.
  • the determination module 701 is used to execute the communication steps (such as step 201 and step 501, but not limited thereto) executed by the source device 101 in any of the above methods, which will not be described in detail here.
  • the sending module 702 is used to execute step 202 and step 502, but not limited thereto.
  • Fig. 8 is a schematic diagram of the structure of a relay device provided in an embodiment of the present disclosure.
  • the relay device 800 may include: a receiving module 801 .
  • the above-mentioned receiving module 801 is used to receive a first data frame; wherein the first data frame includes first identification information, and the first identification information identifies that the source device enters sleep mode after receiving the first BA frame sent by the relay device; wherein the first BA frame is sent by the relay device in response to the second BA frame; the second BA frame is used to confirm that the target device has received the first data frame forwarded by the relay device.
  • the receiving module 801 is used to execute the communication steps (such as step 203 to step 601, but not limited thereto) performed by the relay device 102 in any of the above methods, which will not be described in detail here.
  • FIG9 is a schematic diagram of the structure of a terminal 900 (e.g., user equipment, etc.) proposed in an embodiment of the present disclosure.
  • the terminal 900 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 900 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 900 includes one or more processors 901.
  • the processor 901 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 900 is used to execute any of the above methods.
  • the terminal 900 further includes one or more memories 902 for storing instructions.
  • the memory 902 may also be outside the terminal 900.
  • the terminal 900 further 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 202, step 203, step 204, step 205, step 206, step 207, step 401, step 402, step 403, step 404, step 405, step 502, step 503, step 504, step 601, step 602, step 603, step 604, but not limited thereto), and the processor 901 performs other steps (for example, step 201, step 501).
  • 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 900 may include one or more interface circuits 903.
  • the interface circuit 903 is connected to the memory 902, and the interface circuit 903 may be used to receive signals from the memory 902 or other devices, and may be used to send signals to the memory 902 or other devices.
  • the interface circuit 903 may read instructions stored in the memory 902 and send the instructions to the processor 901.
  • the terminal 900 described in the above embodiments 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.
  • 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, a vehicle-mounted device, a network device, a cloud device, an artificial intelligence device, etc.; (6) others, etc.
  • Fig. 10 is a schematic diagram of the structure of a chip 1000 provided in an embodiment of the present disclosure.
  • the terminal 1000 may be a chip or a chip system
  • the chip 1000 includes one or more processors 1001 , and the chip 1000 is used to execute any of the above methods.
  • the chip 1000 further includes one or more 1003.
  • the interface circuit 1003 is connected to the memory 1002.
  • the interface circuit 1003 can be used to receive signals from the memory 1002 or other devices, and the interface circuit 1003 can be used to send signals to the memory 1002 or other devices.
  • the interface circuit 1003 can read the instructions stored in the memory 1002 and send the instructions to the processor 1001.
  • 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 202, step 203, step 204, step 205, step 206, step 207, step 401, step 402, step 403, step 404, step 405, 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 201, step 501).
  • the communication steps such as sending and/or receiving in the above method (for example, step 202, step 203, step 204, step 205, step 206, step 207, step 401, step 402, step 403, step 404, step 405, step 502, step 503, step 504, step 601, step 602, step 603, step 604, but not limited to this)
  • the processor 1001 executes other steps (for example, step 201, step 501).
  • interface circuit interface circuit
  • transceiver pin transceiver
  • the chip 1000 further includes one or more memories 1002 for storing instructions. Alternatively, all or part of the memory 1002 may be outside the chip 1000.
  • the present disclosure also proposes a storage medium, on which instructions are stored, and when the instructions are executed on the terminal 900, the terminal 900 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 900, the terminal 900 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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  • Computer Networks & Wireless Communication (AREA)
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Abstract

L'invention concerne un procédé de transmission de relais de données, un dispositif de communication et un système de communication. Le procédé de transmission de relais de données consiste à : déterminer une première trame de données, la première trame de données comprenant des premières informations d'identifiant, les premières informations d'identifiant indiquant qu'un dispositif source entre dans un mode de veille lors de la réception d'une première trame BA envoyée par un dispositif relais, la première trame BA étant envoyée par le dispositif relais en réponse à une seconde trame BA, et la seconde trame BA étant utilisée pour déterminer qu'un dispositif cible a reçu la première trame de données transmise par le dispositif relais ; et envoyer la première trame de données, de façon à transmettre des données de liaison montante ou des données de liaison descendante, augmenter un débit de transmission de données, et réduire le retard de transmission.
PCT/CN2023/126258 2023-10-24 2023-10-24 Procédé de transmission de relais de données, dispositif de communication, et système de communication Pending WO2025086101A1 (fr)

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CN202380011697.XA CN120266546A (zh) 2023-10-24 2023-10-24 数据中继传输方法、通信设备及通信系统

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