WO2022011764A1 - Procédé et appareil permettant d'effectuer une communication point à point à l'aide de multiples liaisons, et support de stockage - Google Patents

Procédé et appareil permettant d'effectuer une communication point à point à l'aide de multiples liaisons, et support de stockage Download PDF

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WO2022011764A1
WO2022011764A1 PCT/CN2020/108349 CN2020108349W WO2022011764A1 WO 2022011764 A1 WO2022011764 A1 WO 2022011764A1 CN 2020108349 W CN2020108349 W CN 2020108349W WO 2022011764 A1 WO2022011764 A1 WO 2022011764A1
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point
parameter
link
data
bitmap
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PCT/CN2020/108349
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English (en)
Chinese (zh)
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吴昊
谢芳
廖杨
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成都极米科技股份有限公司
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Publication of WO2022011764A1 publication Critical patent/WO2022011764A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/01—Protocols
    • H04L67/10—Protocols in which an application is distributed across nodes in the network
    • H04L67/104—Peer-to-peer [P2P] networks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/15—Setup of multiple wireless link connections
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
    • H04L69/14—Multichannel or multilink protocols
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
    • H04L69/24—Negotiation of communication capabilities
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W40/00—Communication routing or communication path finding
    • H04W40/24—Connectivity information management, e.g. connectivity discovery or connectivity update
    • H04W40/246—Connectivity information discovery
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • H04W8/005—Discovery of network devices, e.g. terminals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0446—Resources in time domain, e.g. slots or frames
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/14—Direct-mode setup
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • H04W8/22—Processing or transfer of terminal data, e.g. status or physical capabilities
    • H04W8/24—Transfer of terminal data
    • 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 application relates to the field of wireless communication, and in particular, to a method, device and storage medium for point-to-point communication using multiple links.
  • 802.11be networking also known as Extremely High Throughput (EHT) networking
  • EHT Extremely High Throughput
  • WLANs wireless local area networks
  • video traffic will continue to be the dominant traffic type in many WLAN deployments.
  • the throughput requirements of these applications are evolving due to the advent of 4k and 8k video (20Gbps uncompressed rate).
  • New high-throughput, low-latency applications such as virtual or augmented reality, gaming, remote offices, and cloud computing will proliferate (for example, real-time gaming with sub-5ms latency).
  • 802.11be networks are designed to ensure WLAN competitiveness by further increasing overall throughput and reducing latency, while ensuring backward compatibility and coexistence with legacy technology standards. 802.11 compatible devices operating in the 2.4GHz, 5GHz and 6GHz bands.
  • a point-to-point communication enhancement method based on AP scheduling is proposed.
  • the AP schedules the wireless resources uniformly. While reducing the intermediate transmission nodes and reducing the transmission delay, it ensures that the transmission and reception of other devices in the network will not be lost due to interference. .
  • 802.11be in order to improve the data throughput and reduce the data transmission delay, it is proposed to use the point-to-point (P2P) transmission controlled by network access devices (such as routers, network access points, APs, etc., and the AP will be used as an example for illustration below).
  • P2P point-to-point
  • network access devices such as routers, network access points, APs, etc.
  • the AP will be used as an example for illustration below.
  • 802.11 network supports direct device connection, which is also a point-to-point transmission method, but in the previous two scenarios, the first is without AP, so that the transmission will not interfere with the transmission of other devices, and the second is with AP , after the two devices establish a connection through the AP, they will transmit directly. In this mode, it will cause interference to the data transmission between other devices within the coverage area of the AP and the AP. Therefore, it is proposed in 802.11be that the AP allocates point-to-point Wireless resources for communication, so as to avoid
  • the present application proposes a time-domain resource allocation method, which can ensure the performance of point-to-point communication transmission and limit its impact on network performance.
  • the present application provides a method for point-to-point communication using multiple links, including: sending a data-bearing message to a network access device, where the data-bearing message includes a source address, a destination address, and a parameter P2P option, and the parameter P2P option is used to indicate whether to use the point-to-point operation; receive the trigger message sent by the network access device, the trigger message contains the parameter P2P parameter set, and the parameter P2P parameter set is used to indicate the resources allocated to the point-to-point operation; data is transmitted according to the parameter P2P parameter set.
  • the parameter P2P parameter set contains the fields Link, P2P bitmap and P2P interval, Link is used to indicate the specified link, P2P bitmap is used to indicate the distribution of time slots in a time slot allocation period; P2P interval is used to indicate the time slot allocation cycle.
  • the P2P interval is an independent parameter, or, the P2P interval is not an independent parameter, and its value is equal to the total length of all time slots in the P2P bitmap.
  • the time slots in one time slot allocation period include point-to-point time slots and normal time slots, and the point-to-point time slots include point-to-point transmission time slots and/or point-to-point reception time slots.
  • transmitting data according to the parameter P2P parameter set includes: according to the P2P bitmap corresponding to the link, sending data to the peer terminal in the point-to-point transmission time slot on the link indicated in the field Link.
  • transmitting data according to the parameter P2P parameter set includes: disconnecting the current link, establishing a connection on the link indicated in the field Link, and after the connection is established, according to the P2P bitmap corresponding to the link, The data is sent to the peer terminal at the point-to-point transmission slot on the link indicated in the field Link.
  • transmitting data according to the parameter P2P parameter set also includes: according to the P2P bitmap corresponding to the link, sending data to the network access device or receiving the data sent by the network access device in the ordinary timeslot on the link indicated in the field Link. data.
  • transmitting the data according to the parameter P2P parameter set also includes: according to the P2P bitmap corresponding to the link, receiving the data sent by the peer terminal in the point-to-point reception time slot on the link indicated in the field Link.
  • the method further includes: sending a P2P setup release message to the network access device, requesting to release resources used for point-to-point operations.
  • the method further includes: sending capability information to the network access device, where the capability information includes parameters P2P mode, ML mode and STR mode, the parameter P2P mode is used to indicate whether the terminal supports point-to-point operations, and the parameter ML mode is used to indicate that the terminal Whether to support multi-link operation, the parameter STR mode is used to indicate whether the terminal supports simultaneous independent multi-link transmission and reception.
  • the capability information includes parameters P2P mode, ML mode and STR mode
  • the parameter P2P mode is used to indicate whether the terminal supports point-to-point operations
  • the parameter ML mode is used to indicate that the terminal Whether to support multi-link operation
  • the parameter STR mode is used to indicate whether the terminal supports simultaneous independent multi-link transmission and reception.
  • the present application provides a method for point-to-point communication using multiple links, including: receiving capability information sent by an initiating terminal and a peer terminal, where the capability information includes parameters P2P mode, ML mode and STR mode, and the parameter P2P mode uses It is used to indicate whether the terminal supports point-to-point operation, the parameter ML mode is used to indicate whether the terminal supports multi-link operation, the parameter STR mode is used to indicate whether the terminal supports simultaneous independent multi-link transmission and reception mode; receive the first data-bearing message sent by the initiating terminal , the message of the first bearing data includes the source address, the destination address and the parameter P2P option, the parameter P2P option is used to indicate whether to use the point-to-point operation; the parameter P2P parameter set is set according to the capability information of the initiating terminal and the peer terminal, and the parameter P2P parameter set Used to indicate the resources allocated to the point-to-point operation; send a trigger message to the initiating terminal, the trigger message contains the first parameter P2P parameter
  • the parameter P2P parameter set contains the fields Link, P2P bitmap and P2P interval, Link is used to represent the specified link, P2P bitmap is used to represent the distribution of time slots in a time slot allocation period; P2P interval is used to represent the time slot allocation cycle.
  • setting the parameter P2P parameter set according to the capability information of the initiating terminal and the peer terminal includes:
  • the configured P2P parameter set includes a set of parameters, and the set of parameters includes a specified link and its corresponding P2P bitmap and P2P interval, or include multiple sets of parameters, which include multiple specified links and their corresponding P2P bitmaps and P2P intervals, and multiple links correspond to each other
  • the P2P bitmap and P2P interval are the same or different;
  • the configured P2P parameter set contains a set of parameters, which contains the specified A link and its corresponding P2P bitmap and P2P interval, or include multiple sets of parameters, which include multiple specified links and their corresponding P2P bitmaps and P2P intervals, and multiple chains
  • the corresponding P2P bitmap and P2P interval are the same;
  • the configured P2P parameter set includes a set of parameters, which includes a specified link and its corresponding P2P bitmap and P2P interval.
  • the method further includes: setting the P2P interval as an independent parameter, or, the P2P interval is not used as an independent parameter, and its value is equal to the total length of all time slots in the P2P bitmap.
  • the time slots in one time slot allocation period include point-to-point time slots and normal time slots, and the point-to-point time slots include point-to-point transmission time slots and/or point-to-point reception time slots.
  • the method further includes: on the link indicated in the field Link, the ordinary time slot specified in the P2P bitmap receives data sent by any terminal or sends data to any terminal.
  • the method further includes: not allocating the point-to-point time slot specified in the P2P bitmap on the link indicated in the field Link to other terminals to transmit data.
  • the method also includes: receiving the P2P setup release message sent by the initiating terminal, and assigning the point-to-point time slot specified in the P2P bitmap on the link indicated in the field Link to any terminal connected to this link to transmit data .
  • the method for setting the P2P bitmap in the second parameter P2P parameter set includes: setting the P2P bitmap in the second parameter P2P parameter set to be the same as the P2P bitmap in the first parameter P2P parameter set; or, Set the time slot corresponding to the point-to-point sending time slot in the P2P bitmap in the P2P bitmap in the second parameter P2P parameter set as the point-to-point receiving time slot, and set the time slot in the P2P bitmap in the second parameter P2P parameter set with The time slot corresponding to the point-to-point reception time slot in the P2P bitmap in the first parameter P2P parameter set is set as the point-to-point transmission time slot.
  • the present application provides an apparatus for point-to-point communication using multiple links, including: a data-bearing message sending module configured to send a data-bearing message to a network access device, where the data-bearing message includes a source address, The target address and parameter P2P option, the parameter P2P option is used to indicate whether to use point-to-point operation; the trigger message receiving module is used to receive the trigger message sent by the network access device, the trigger message contains the parameter P2P parameter set, and the parameter P2P parameter set is used for Indicates the resources allocated to the point-to-point operation; the data transmission module is used to transmit data according to the parameter P2P parameter set.
  • the present application provides a device for point-to-point communication using multiple links, including: a capability information receiving module for receiving capability information sent by an initiating terminal and a peer terminal, the capability information including parameters P2P mode, ML mode and STR mode, the parameter P2P mode is used to indicate whether the terminal supports point-to-point operation, the parameter ML mode is used to indicate whether the terminal supports multi-link operation, the parameter STR mode is used to indicate whether the terminal supports simultaneous independent multi-link transmission and reception; the first bearer data
  • the message receiving module is used to receive the first data-bearing message sent by the initiating terminal.
  • the first data-bearing message includes the source address, the destination address and the parameter P2P option.
  • the parameter P2P option is used to indicate whether to use point-to-point operation; parameter setting The module is used to set the parameter P2P parameter set according to the capability information of the initiating terminal and the peer terminal, and the parameter P2P parameter set is used to indicate the resources allocated to the point-to-point operation; the message sending module is used to send a trigger message to the initiating terminal.
  • the first parameter P2P parameter set is included; the second data-bearing message is sent to the peer terminal, and the second data-bearing message includes the second parameter P2P parameter set.
  • the present application provides an apparatus for point-to-point communication using multiple links, comprising: a memory for storing a program; a processor coupled to the memory, wherein the processor is configured to run the program, such that The apparatus performs the method for point-to-point communication using multiple links as described in any one of the first aspect or possible implementations of the first aspect.
  • the present application provides an apparatus for point-to-point communication using multiple links, comprising: a memory for storing a program; a processor coupled to the memory, wherein the processor is configured to run the program, such that The apparatus performs the method for point-to-point communication using multiple links as described in any one of the second aspect or possible implementations of the second aspect.
  • the present application provides a computer-readable storage medium, comprising computer instructions, which, when executed by a processor, can implement the first aspect or a possible implementation manner of the first aspect or the second aspect or the first aspect.
  • the method for point-to-point communication using multiple links is described in any one of the possible implementation manners of the second aspect.
  • the devices described in the third aspect to the sixth aspect and the computer-readable storage medium described in the seventh aspect in this application are used to execute the method provided in the first aspect or the second aspect, and therefore can To achieve the same beneficial effects as the method described in the first aspect or the second aspect, the embodiments of the present application will not be repeated here.
  • the present application enables the terminal to transmit data according to the parameter P2P parameter set, and realizes a time domain resource allocation method, which can ensure the performance of point-to-point communication transmission, and can also limit its impact on network performance.
  • FIG. 1 is a flowchart of a method for performing point-to-point communication using multiple links according to an embodiment of the present application
  • FIG. 2 is a schematic diagram of the distribution of time slots in a time slot allocation period according to an embodiment of the present application
  • FIG. 3 is a schematic diagram of the distribution of time slots in another time slot allocation period according to an embodiment of the present application.
  • STA represents a terminal in a wireless local area network
  • AP represents a network access point in a wireless local area network
  • the P2P service identifies that the data transmission path between terminals does not pass through the AP. Services directly transmitted between two terminals.
  • STA1 and STA2 are two terminals within the coverage of the AP, and in the present invention, STA1 and STA2 use the P2P mode to communicate.
  • the initiator the first party that initiates a request for a P2P connection
  • the target STA that the initiator requests for connection is called the peer.
  • the network access device may be a router, an AP, or the like, and the embodiment of the present application uses an AP as an example for description.
  • Multi-link (ML, Multi-Link) operation means that a STA or AP can receive or send data on two or more links at the same time due to the configuration of multiple groups of transceiver antennas and enhanced internal processing capabilities.
  • This application describes based on two links (link1 and link2), but does not limit the application to scenarios with more than two links in the implementation process.
  • Simultaneous independent multi-link transceiver (STR) mode It means that data can be sent and received independently on multiple links at the same time without interfering with each other.
  • a time slot is the smallest time unit in a wireless local area network. For example, if a slot is set to 9 microseconds, the transmission time is 5 slots, which is 45 microseconds.
  • the video transmission service model is used as the standard of the P2P service model.
  • Pixel size 24bits/pixel
  • the transmission rate is about 120Mbps.
  • the MCS corresponding rate table such as Table 1, calculate the transmission time, and then determine the number of slots required to transmit a frame of data according to the time value of each slot.
  • FIG. 1 is a flowchart of a method for performing point-to-point communication using multiple links according to an embodiment of the present application. As shown in Figure 1, the method for point-to-point communication using multiple links includes the following steps:
  • STA1 connects to the AP and sends the capability information of STA1 to the AP.
  • the capability information includes parameters P2P mode, ML mode and STR mode.
  • the parameter P2P mode is used to indicate whether the terminal supports point-to-point operation
  • the parameter ML mode is used to indicate whether the terminal supports
  • the parameter STR mode is used to indicate whether the terminal supports simultaneous independent multi-link transmission and reception.
  • the parameters included in the capability information Capability are shown in Table 2.
  • STA1 may send its capability information to the AP in a probe request or association request or reassociation request.
  • STA2 connects to the AP, and sends the capability information of STA2 to the AP.
  • STA1 has data that needs to be sent to STA2 (ie, STA1 is the initiating terminal and STA2 is the peer terminal), then STA1 sends a message carrying the data to the AP.
  • data in the term “data-carrying message” can refer to both service data and service request indication, that is, the data-carrying message can be either an ordinary data frame sent by STA1 to the AP, or is a separate P2P operation request message.
  • the data-carrying message contains the following parameters:
  • SA source address, here is set to the address of STA1;
  • DA target address, here is set to the address of STA2;
  • Payload data sent from STA1 to STA2;
  • P2P option Indicates whether to use point-to-point operation, for example, the value is set as follows,
  • the parameter P2P parameter set includes the fields Link, P2P bitmap and P2P interval, as shown in Table 3, where 1 represents a point-to-point transmission time slot, and 0 represents a normal time slot, such as P2P slot and Normal slot in Figure 2.
  • the P2P slot includes a P2P-F slot and a P2P-R slot, as shown in FIG. 3 , wherein the P2P-F slot represents a point-to-point transmission time slot, that is, a slot for sending data in a P2P operation, and the P2P-R slot represents A point-to-point receiving slot, that is, a slot for receiving data in a P2P operation.
  • the P2P bitmap shown in Figure 3 is ⁇ 1110000002 ⁇ .
  • the setting method of the parameter P2P parameter set includes:
  • STA1 supports P2P operation, supports multi-link operation, and supports STR mode;
  • STA2 supports P2P operation, supports multi-link operation, and supports STR mode;
  • the configured P2P parameter set can include a set of parameter sets, where the parameters include a specified link (link1 or link2) and its corresponding P2P bitmap and P2P interval,
  • the configured P2P parameter set includes more than two sets of parameter sets, each of which respectively indicates the P2P bitmap and P2P interval on one link.
  • the settings of the P2P parameter set are shown in Table 4-Table 6.
  • STA1 supports P2P operation, supports multi-link operation, but does not support STR mode;
  • STA2 supports P2P operation, supports multi-link operation, and supports STR mode;
  • the configured P2P parameter set can include a set of parameter sets, where the parameters include a specified link (link1 or link2) and its corresponding P2P bitmap and P2P interval,
  • the following situation also belongs to the two sets of parameter sets in this application. Although it is a record in form, or a set of parameter sets, the identifiers of the two links are given in the link identifier column. Therefore, it is considered that the two sets of parameter sets are merged. Illustratively, as shown in Table 8.
  • STA1 supports P2P operation, supports multi-link operation, and supports STR mode;
  • STA2 supports P2P operation, supports multi-link operation, and does not support STR mode;
  • the configured P2P parameter set can include a set of parameter sets, where the parameters include a specified link (link1 or link2) and its corresponding P2P bitmap and P2P interval,
  • STA1 supports P2P operation, supports multi-link operation, but does not support STR mode;
  • STA2 supports P2P operation, supports multi-link operation, and does not support STR mode;
  • the configured P2P parameter set can include a set of parameter sets, where the parameters include a specified link (link1 or link2) and its corresponding P2P bitmap and P2P interval,
  • STA1 supports P2P operation and does not support multi-link operation
  • STA2 supports P2P operation and multi-link operation
  • the configured P2P parameter set includes a set of parameter sets, which includes a specified link and its corresponding P2P bitmap and P2P interval.
  • STA1 supports P2P operation and multi-link operation
  • STA2 supports P2P operation and does not support multi-link operation
  • the configured P2P parameter set includes a set of parameter sets, which includes a specified link and its corresponding P2P bitmap and P2P interval.
  • STA1 supports P2P operation and does not support multi-link operation
  • STA2 supports P2P operation and does not support multi-link operation
  • the configured P2P parameter set includes a set of parameter sets, which includes a specified link and its corresponding P2P bitmap and P2P interval.
  • the setting method of the P2P interval in the parameter P2P parameter set includes: setting the P2P interval to occupy bytes, and it is a specific value, such as the above-mentioned Table 3-Table 8.
  • P2P interval can also be set to not occupy bytes, and its value is equal to the total length of all time slots in the P2P bitmap, that is, the field P2P interval is not included, and the terminal calculates the value of the P2P interval according to the total length of all time slots in the P2P bitmap.
  • the AP sends a trigger message to STA1, the message contains the parameter P2P parameter set, and sends a data-bearing message to STA2, and the data-bearing message also includes the parameter P2P parameter set.
  • the data-bearing message sent by the AP to the STA2 may be either a common data frame or a separate P2P operation indication message. For example, if STA1 has data to send to STA2, it sends a data frame containing the parameter P2P option to the AP. After setting the parameter P2P parameter set, the AP sends a trigger message to STA1, and sends the received data to STA2.
  • the data frame contains the parameter P2P parameter set.
  • the P2P bitmap in the parameter P2P parameter set sent by the AP to STA2 is set to be the same as the P2P bitmap in the parameter P2P parameter set sent to STA1.
  • the time slot in the P2P bitmap in the parameter P2P parameter set sent to STA2 and the time slot corresponding to the point-to-point transmission time slot in the P2P bitmap in the parameter P2P parameter set sent to STA1 is set as the point-to-point receiving time slot
  • the time slot corresponding to the point-to-point receive time slot in the P2P bitmap in the parameter P2P parameter set sent to STA1 is set as the point-to-point transmission time slot.
  • the P2P bitmap in the parameter P2P parameter set sent to STA1 is set to ⁇ 1110000002 ⁇ , where 1 represents a point-to-point sending time slot, 0 represents a normal time slot, and 2 represents a point-to-point receiving time slot, then the parameter P2P sent to STA2
  • the P2P bitmap in the parameter set can be set to ⁇ 1110000002 ⁇ or ⁇ 2220000001 ⁇ .
  • STA2 needs to be notified to receive the data sent by STA1 in the time slot of 1, and in the time slot of 2.
  • STA2 only needs to know that 1 represents a point-to-point transmission time slot, 0 represents a normal time slot, and 2 represents a point-to-point reception time slot.
  • STA1 receives the message sent by the AP. If the message contains the parameter P2P parameter set, it transmits data according to the parameter P2P parameter set, including: viewing Link,
  • Link indicated by Link is the link that STA1 is currently connected to, then according to the P2P bitmap corresponding to the link, send data to the peer terminal in the point-to-point transmission time slot on the link indicated in the field Link, for example, in Set to "1" to send data to the corresponding slot.
  • STA1 disconnects the current link and establishes a connection on the link indicated in Link. After the connection is established, according to the P2P bitmap corresponding to the link, The data is sent to the peer terminal in the point-to-point transmission time slot on the link indicated in the field Link, for example, the data is sent in the corresponding slot set as "1".
  • STA2 receives the message sent by the AP. If the message contains the parameter P2P parameter set, it transmits data according to the parameter P2P parameter set, including: viewing Link,
  • Link indicated by Link is the link that STA2 is currently connected to, then according to the P2P bitmap corresponding to the link, send data to the peer terminal in the point-to-point transmission time slot on the link indicated in the field Link, for example, in Set to "1" for the corresponding slot to receive data.
  • STA2 disconnects the connection of the current link, and establishes a connection on the link indicated in Link. After the connection is established, according to the P2P bitmap corresponding to the link, The data is sent to the peer terminal at the point-to-point transmission time slot on the link indicated in the field Link, for example, the data is received at the corresponding slot set to "1".
  • STA1 and STA2 can also set the slot corresponding to "0" on the link indicated in Link to send data to or receive data from the AP according to the P2P bitmap corresponding to the link.
  • the AP does not allocate the slot used for P2P in the P2P bitmap on the link indicated in Link, that is, the slot indicated as "1" or "2" to other STAs to transmit data; In other words, only the slots indicated as "0" in the P2P bitmap are allocated to other STAs connected to this link to transmit data.
  • the method for point-to-point communication using multiple links may further include the following steps:
  • STA1 After STA1 data transmission is completed, it can send a P2P setup release message to the AP to request the release of resources for point-to-point operations. In some embodiments, STA1 can also send a P2P setup release message to STA2 at the same time.
  • the AP After the AP receives the P2P setup release message, it re-allocates the slot used for P2P in the P2P bitmap, that is, the slot indicated as "1" or "2" to any STA connected to this link to transmit data.
  • An embodiment of the present application further provides an apparatus for point-to-point communication using multiple links, including: a data-bearing message sending module, configured to send a data-bearing message to a network access device, where the data-bearing message includes a source address, a destination The address and parameter P2P option, the parameter P2P option is used to indicate whether to use point-to-point operation; the trigger message receiving module is used to receive the trigger message sent by the network access device, the trigger message contains the parameter P2P parameter set, and the parameter P2P parameter set is used to indicate Resources allocated to point-to-point operations; data transmission module, used to transmit data according to the parameter P2P parameter set.
  • a data-bearing message sending module configured to send a data-bearing message to a network access device, where the data-bearing message includes a source address, a destination The address and parameter P2P option, the parameter P2P option is used to indicate whether to use point-to-point operation
  • the trigger message receiving module is used to
  • the embodiment of the present application also provides another device for point-to-point communication using multiple links, including: a capability information receiving module, configured to receive capability information sent by an initiating terminal and a peer terminal, the capability information including parameters P2P mode, ML mode and STR mode, the parameter P2P mode is used to indicate whether the terminal supports point-to-point operation, the parameter ML mode is used to indicate whether the terminal supports multi-link operation, the parameter STR mode is used to indicate whether the terminal supports simultaneous independent multi-link transmission and reception; the first bearer data
  • the message receiving module is used to receive the first data-bearing message sent by the initiating terminal.
  • the first data-bearing message includes the source address, the destination address and the parameter P2P option.
  • the parameter P2P option is used to indicate whether to use point-to-point operation; parameter setting The module is used to set the parameter P2P parameter set according to the capability information of the initiating terminal and the peer terminal, and the parameter P2P parameter set is used to indicate the resources allocated to the point-to-point operation; the message sending module is used to send a trigger message to the initiating terminal.
  • the first parameter P2P parameter set is included; the second data-bearing message is sent to the peer terminal, and the second data-bearing message includes the second parameter P2P parameter set.
  • Embodiments of the present application further provide an apparatus for establishing a point-to-point communication connection, including a memory for storing a program, and a processor coupled to the memory, wherein the processor is configured to run the program, so that all The apparatus executes the method involved in the embodiment shown in FIG. 1 .
  • Embodiments of the present application further provide a computer-readable storage medium, including computer instructions, which, when executed by a processor, can implement the method involved in the embodiment shown in FIG. 1 .
  • the device and the computer-readable storage medium for establishing a point-to-point communication connection provided by the embodiment of the present application are used to execute the method involved in the embodiment shown in FIG. 1 , and thus can achieve the method involved in the embodiment shown in FIG. 1
  • the same beneficial effects are not repeated in the embodiments of the present application.
  • the disclosed system, apparatus and method may be implemented in other manners.
  • the apparatus embodiments described above are only illustrative.
  • the division of the units is only a logical function division. In actual implementation, there may be other division methods.
  • multiple units or components may be combined or Can be integrated into another system, or some features can be ignored, or not implemented.
  • the shown or discussed mutual coupling or direct coupling or communication connection may be through some interfaces, indirect coupling or communication connection of devices or units, and may be in electrical, mechanical or other forms.
  • the units described as separate components may or may not be physically separated, and components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution in this embodiment.
  • each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically alone, or two or more units may be integrated into one unit.
  • the functions, if implemented in the form of software functional units and sold or used as independent products, may be stored in a computer-readable storage medium.
  • the technical solution of the present application can be embodied in the form of a software product in essence, or the part that contributes to the prior art or the part of the technical solution.
  • the computer software product is stored in a storage medium, including Several instructions are used to cause a computer device (which may be a personal computer, a server, a network device or a terminal device, etc.) to execute all or part of the steps of the methods described in the various embodiments of the present application.
  • the aforementioned storage medium includes: U disk, removable hard disk, ROM, RAM) disk or optical disk and other media that can store program codes.
  • the words “if” or “if” as used herein may be interpreted as “at” or “when” or “in response to determining” or “in response to detecting.”
  • the phrases “if determined” or “if detected (the stated condition or event)” can be interpreted as “when determined” or “in response to determining” or “when detected (the stated condition or event),” depending on the context )” or “in response to detection (a stated condition or event)”.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Computer Security & Cryptography (AREA)
  • Databases & Information Systems (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

La présente invention porte sur un procédé et sur un appareil permettant d'effectuer une communication point à point (P2P) à l'aide de multiples liaisons, et sur un support de stockage. Le procédé consiste : à envoyer un message comportant des données à un dispositif d'accès au réseau, le message comportant des données comprenant une adresse source, une adresse cible et une option P2P de paramètre, et l'option P2P de paramètre étant utilisée pour indiquer s'il faut utiliser une opération P2P ; à recevoir un message de déclenchement envoyé par le dispositif d'accès au réseau, le message de déclenchement comprenant un ensemble de paramètres P2P de paramètre et l'ensemble de paramètres P2P de paramètre étant utilisé pour indiquer une ressource allouée pour l'opération P2P ; et à transmettre des données selon l'ensemble de paramètres P2P de paramètre. La présente invention concerne un procédé d'attribution de ressources dans le domaine temporel, qui permet d'assurer les performances de transmission d'une communication P2P et qui permet également de limiter l'impact sur les performances du réseau.
PCT/CN2020/108349 2020-07-13 2020-08-11 Procédé et appareil permettant d'effectuer une communication point à point à l'aide de multiples liaisons, et support de stockage WO2022011764A1 (fr)

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CN202010669830.9A CN114095504B (zh) 2020-07-13 2020-07-13 使用多链路进行点对点通信的方法、装置及存储介质

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