WO2023028891A1 - 数据传输方法、装置、设备及存储介质 - Google Patents

数据传输方法、装置、设备及存储介质 Download PDF

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Publication number
WO2023028891A1
WO2023028891A1 PCT/CN2021/115827 CN2021115827W WO2023028891A1 WO 2023028891 A1 WO2023028891 A1 WO 2023028891A1 CN 2021115827 W CN2021115827 W CN 2021115827W WO 2023028891 A1 WO2023028891 A1 WO 2023028891A1
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WIPO (PCT)
Prior art keywords
link
beacon
communication device
links
dtim
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PCT/CN2021/115827
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English (en)
French (fr)
Inventor
徐彦超
王泷
Original Assignee
Oppo广东移动通信有限公司
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.)
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Application filed by Oppo广东移动通信有限公司 filed Critical Oppo广东移动通信有限公司
Priority to CN202180099095.5A priority Critical patent/CN117441408A/zh
Priority to PCT/CN2021/115827 priority patent/WO2023028891A1/zh
Publication of WO2023028891A1 publication Critical patent/WO2023028891A1/zh

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    • 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
    • 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 mobile communication, in particular to a data transmission method, device, equipment and storage medium.
  • multiple links may be established between the first communication device and the second communication device, and then communicate through the multiple links.
  • the first communication device will send the DTIM at the TBTT (Targeted Beacon Transmit Time) corresponding to the Beacon (beacon) corresponding to the DTIM (Delivery Traffic Indication Map) of each link. Beacon, and send the broadcast multicast packet to be transmitted after sending the DTIM Beacon.
  • the TBTTs corresponding to DTIM Beacons in different links may be the same. If a DTIM Beacon is received through any link in the wake-up state, when the second communication device controls other links to also switch to the wake-up state, it will consume a lot of time due to the switching state. The broadcast multicast packet sent by the first communication device cannot be received for a long time, resulting in loss of the broadcast multicast packet.
  • the embodiment of the present application provides a data transmission method, device, device, and storage medium. Since there is an interval between the DTIM Beacon on the first link and the received DTIM Beacon, it is equivalent to reserving a space for the second communication device. time, so that the second communication device can successfully receive the broadcast-multicast packet on the first link, preventing loss of the broadcast-multicast packet. Described technical scheme is as follows:
  • a data transmission method is provided, the method is executed by a first communication device, there are multiple links between the first communication device and the second communication device, and the method includes:
  • the first communication device sends a transmission data indication mapping beacon DTIM Beacon through each of the multiple links, and the DTIM Beacon indicates at least one first link, and the first link is the There is a link of the broadcast multicast packet to be transmitted in the plurality of links;
  • the scheduled beacon transmission time TBTT corresponding to the DTIM Beacon on different links is different.
  • a data transmission method is provided, the method is executed by a second communication device, and there are multiple links between the second communication device and the first communication device, and the method includes:
  • the second communication device receives the transmission data indication mapping beacon DTIM Beacon sent by the first communication device through at least one link among the plurality of links, and the DTIM Beacon indicates at least one first link,
  • the first link is a link in which there is a broadcast multicast packet to be transmitted among the multiple links;
  • the scheduled beacon transmission time TBTT corresponding to the DTIM Beacon on different links is different.
  • a data transmission device is provided, the device is set in a first communication device, there are multiple links between the first communication device and a second communication device, and the device includes:
  • a sending module configured to send a transmission data indication mapping beacon DTIM Beacon through each link in the plurality of links, and the DTIM Beacon indicates at least one first link, and the first link is the There is a link of broadcast and multicast packets to be transmitted among multiple links;
  • the scheduled beacon transmission time TBTT corresponding to the DTIM Beacon on different links is different.
  • a data transmission device is provided, the device is set in a second communication device, there are multiple links between the second communication device and the first communication device, and the device includes:
  • the receiving module is configured to receive, through at least one of the multiple links, the transmission data indication mapping beacon DTIM Beacon sent by the first communication device, the DTIM Beacon indicating at least one first link, the The first link is a link in which there are broadcast multicast packets to be transmitted among the multiple links;
  • the scheduled beacon transmission time TBTT corresponding to the DTIM Beacon on different links is different.
  • a first communication device includes: a processor; a transceiver connected to the processor; a memory for storing executable instructions of the processor ; Wherein, the processor is configured to load and execute the executable instructions to implement the data transmission method as described in the above aspect.
  • a second communication device includes: a processor; a transceiver connected to the processor; a memory for storing executable instructions of the processor ; Wherein, the processor is configured to load and execute the executable instructions to implement the data transmission method as described in the above aspect.
  • a computer-readable storage medium wherein executable program code is stored in the readable storage medium, and the executable program code is loaded and executed by a processor to implement the above-mentioned aspect. data transfer method.
  • a chip is provided, the chip includes a programmable logic circuit and/or program instructions, and when the chip runs on the first communication device or the second communication device, it is used to implement the above-mentioned The data transmission method described in the aspect.
  • a computer program product is provided.
  • the computer program product is executed by a processor of the first communication device or the second communication device, it is used to implement the data transmission method described in the above aspect.
  • a computer program executed by a processor of the first communication device or the second communication device, so as to implement the data transmission method described in the above aspect.
  • the first communication device sends the broadcast multicast packet after sending the DTIM Beacon through any link, and the TBTT corresponding to the DTIM Beacon on different links is different, so that the DTIM Beacon sent on different links can be guaranteed There is a certain interval between them.
  • the second communication device switches at least one first link indicated by the DTIM Beacon to the wake-up state after receiving the DTIM Beacon, it will take a long time, but due to the DTIM Beacon on the first link and the received DTIM There is an interval between Beacons, which is equivalent to reserving time for the second communication device, so the second communication device can successfully receive the broadcast-multicast packet on the first link to prevent loss of the broadcast-multicast packet.
  • Fig. 1 shows a block diagram of a communication system provided by an exemplary embodiment of the present application.
  • Fig. 2 shows a schematic diagram of a data transmission method provided by an exemplary embodiment of the present application.
  • Fig. 3 shows a schematic diagram of a data transmission method provided by an exemplary embodiment of the present application.
  • Fig. 4 shows a flowchart of a data transmission method provided by an exemplary embodiment of the present application.
  • Fig. 5 shows a schematic diagram of a data transmission method provided by an exemplary embodiment of the present application.
  • Fig. 6 shows a schematic diagram of a data transmission method provided by an exemplary embodiment of the present application.
  • Fig. 7 shows a block diagram of a data transmission device provided by an exemplary embodiment of the present application.
  • Fig. 8 shows a block diagram of a data transmission device provided by an exemplary embodiment of the present application.
  • Fig. 9 shows a block diagram of a data transmission device provided by an exemplary embodiment of the present application.
  • Fig. 10 shows a schematic structural diagram of a communication device provided by an exemplary embodiment of the present application.
  • FIG. 1 shows a block diagram of a communication system provided by an exemplary embodiment of the present application.
  • the communication system may include: a first communication device 11 and a second communication device 12 .
  • the first communication device 11 is a wireless access point, and the first communication device 11 is a creator of a wireless network and a central node of the wireless network.
  • the second communication device 12 is a device connected to the wireless network created by the first communication device 11 .
  • the first communication device 11 may refer to a wireless router device, a wireless modem or other devices, which is not limited in this embodiment of the present application.
  • the second communication device 12 may refer to a UE (User Equipment, user equipment), an access terminal, a subscriber unit, a subscriber station, a mobile station, a mobile station, a remote station, a remote terminal, a mobile device, a wireless communication device , User Agent, or User Device.
  • UE User Equipment
  • the access terminal a subscriber unit, a subscriber station, a mobile station, a mobile station, a remote station, a remote terminal, a mobile device, a wireless communication device , User Agent, or User Device.
  • the terminal device 13 can also be a cellular phone, a cordless phone, a SIP (Session Initiation Protocol, session initiation protocol) phone, a WLL (Wireless Local Loop, wireless local loop) station, a PDA (Personal Digital Assistant, personal digital processing ), handheld devices with wireless communication functions, computing devices or other processing devices connected to wireless modems, vehicle-mounted devices, wearable devices, terminal devices in 5GS (5th Generation System, fifth-generation mobile communication system) or future evolution
  • the terminal equipment in the PLMN Public Land Mobile Network, public land mobile communication network
  • the devices mentioned above are collectively referred to as STA MLD.
  • the first communication device is AP MLD (Access Point Multiple Links Device, access point multi-link device), and the second communication device is STA MLD (Station Multiple Links Device, station multi-link device).
  • AP MLD Access Point Multiple Links Device, access point multi-link device
  • STA MLD Selection Multiple Links Device, station multi-link device
  • the network architecture and business scenarios described in the embodiments of the present application are for more clearly illustrating the technical solutions of the embodiments of the present application, and do not constitute limitations on the technical solutions provided by the embodiments of the present application.
  • the evolution of the technology and the emergence of new business scenarios, the technical solutions provided in the embodiments of this application are also applicable to similar technical problems.
  • the first communication device will send a DTIM Beacon at the TBTT corresponding to the DTIMBacon of each link, and send a broadcast multicast packet to be transmitted after sending the DTIM Beacon.
  • the first communication device passes The DTIM Beacon sent by each link will indicate that there is a broadcast multicast packet to be transmitted on the first link.
  • the second communication device After the second communication device receives the DTIM Beacon through any second link in the wake-up state, it also switches the first link indicated by the DTIM Beacon to the wake-up state, so as to receive broadcast multicast packets through the first link .
  • the first communication device will send a broadcast multicast packet after sending the DTIM Beacon through the first link, and the second communication device will receive the DTIM through the second link. After the Beacon, switch the first link indicated by the DTIM Beacon to the wake-up state. This process takes a long time, so the broadcast and multicast packets sent on the first link before switching to the wake-up state cannot be received, resulting in broadcast and multicast Packet lost.
  • the AP MLD as the first communication device and the STA MLD as the second communication device as an example.
  • the DTIM Beacon sent by the AP MLD on each link indicates the link where there is a broadcast multicast packet to be transmitted.
  • AP MLD will send DTIM Beacons on both link 1 and link 2, and the interval between the TBTTs corresponding to any two adjacent DTIM Beacons in link 1 is two times the target duration. times, the interval between the TBTTs corresponding to any two adjacent DTIM Beacons in link 2 is the target duration.
  • AP MLD determines that there is a broadcast multicast packet to be transmitted on link 2, and there is a broadcast multicast packet to be transmitted on link 1, and since AP MLD first sends the second DTIM Beacon through link 2, the The second DTIM Beacon on link 2 needs to indicate that there are broadcast and multicast packets to be transmitted on both link 1 and link 2, and after AP MLD sends DTIM Beacon on link 1 and link 2 respectively, it passes Link 1 and Link 2 send broadcast-multicast packets.
  • the TBTT corresponding to the DTIM Beacon on different links of the AP MLD is arbitrary, the TBTT corresponding to the DTIM Beacon on different links may be the same, and since the STA MLD monitors at least one of the multiple links, the STA MLD sets the link indicated by DTIM Beacon to the wake-up state after any link of at least one link receives DTIM Beacon. This process takes a long time, so the link that cannot receive DTIM Beacon is switched to wake-up The broadcast and multicast packets sent before the state, resulting in the loss of broadcast and multicast packets.
  • the TBTT corresponding to the DTIM Beacon in link 1 and link 2 is very close, and STA MLD only chooses to monitor Beacon or DTIM Beacon on link 1 by default. If the AP MLD indicates through the second DTIM Beacon of link 1 that both link 1 and link 2 have broadcast and multicast packets to be transmitted, after the STA MLD receives the DTIM Beacon through link 1, it continues to keep link 1 in Awake state to receive broadcast-multicast packets on link 1. Moreover, STA MLD switches link 2 to the wake-up state. Since this process takes a certain amount of time, when link 2 is in the wake-up state and can receive broadcast data packets, AP MLD has already sent the first packet on link 2. Therefore, the STA MLD cannot receive the broadcast multicast packet, resulting in the loss of the broadcast multicast packet.
  • Fig. 4 shows a flowchart of a data transmission method provided by an exemplary embodiment of the present application, the method is executed by the first communication device and the second communication device as shown in Fig. 1 , the first communication device and the second communication device with links between , the method includes at least some of the following:
  • Step 401 The first communication device sends a DTIM Beacon through each of the multiple links, and the DTIM Beacon indicates at least one first link, and the first link is a broadcast multicast to be transmitted among the multiple links.
  • the link of the packet, among which, among the multiple links, the TBTT corresponding to the DTIM Beacon on different links is different.
  • the first communication device will set the TBTT corresponding to the DTIM Beacon on each link, and the TBTT corresponding to the DTIM Beacon on different links is different, when reaching a certain TBTT set by any link , the first communication device sends the DTIM Beacon through the link.
  • the first communication device will also indicate, through the DTIM Beacon, at least one first link among the multiple links that has a broadcast-multicast packet to be transmitted.
  • the first communication device indicates, through the DTIM Beacon, that among the multiple links, there is one first link that has a broadcast-multicast packet to be transmitted.
  • the first communication device indicates through the DTIM Beacon that among the multiple links, there are three first links that have broadcast and multicast packets to be transmitted, or the first communication device will also indicate other numbers of first links Road, the embodiment of this application does not make a limitation.
  • the first communication device is an AP MLD
  • the second communication device is a STA MLD.
  • the TBTT corresponding to the DTIM Beacon on different links can be implemented in any of the following ways, and each implementation mode will be described below:
  • the first type the TBTT corresponding to each Beacon in multiple links is different, and Beacon includes DTIM Beacon.
  • the first communication device sets the TBTT corresponding to each Beacon in the multiple links to be different, and then the first communication device may send the Beacon at a different TBTT through each link.
  • link 1 and link 2 are established between the first communication device and the second communication device, the TBTT corresponding to each Beacon in link 1 and link 2 is different.
  • the Beacon in this embodiment of the application may be a DTIM Beacon, or may be a common Beacon other than the DTIM Beacon.
  • the Beacons in the embodiment of the present application may also be common Beacons other than the DTIM Beacon.
  • the Beacons in the embodiment of the present application may also all be DTIM Beacons.
  • part of the Beacon in the embodiment of the present application is a DTIM Beacon, and a part is a common Beacon other than the DTIM Beacon.
  • intervals between time points corresponding to any two adjacent TBTTs in each of the multiple links are the same.
  • the TBTT corresponding to the Beacon in link 1 is different from the TBTT corresponding to the Beacon in link 2, and the difference between the TBTT corresponding to the first Beacon in link 1 and the TBTT corresponding to the first Beacon in link 2
  • the interval between is the target duration.
  • the target duration is a preset duration or a duration set in other ways, which is not limited in this embodiment of the present application.
  • the target duration in this embodiment of the application is not equal to the interval between the TBTTs corresponding to any two adjacent Beacons in any link.
  • the first communication device is AP MLD
  • the second communication device is STA MLD as an example for description.
  • AP MLD sends Beacon through link 1 and link 2 at regular intervals respectively.
  • Link 1 and link 2 send Beacon at the same period, and the corresponding TBTT of Beacon on each link is shown in Figure 5.
  • the TBTT corresponding to the first Beacon in link 1 is different from the TBTT corresponding to the first Beacon in link 2, and the interval between the two TBTTs is the target duration, and the TBTT corresponding to the second Beacon in link 1 is The TBTT is different from the TBTT corresponding to the second Beacon in link 2, and the interval between the two TBTTs is a target duration, and so on, the TBTT corresponding to the nth Beacon in link 1 is different from that of link 2
  • the TBTTs corresponding to the n-th Beacon in the network are different, and the interval between the two TBTTs is the target duration, and if the STA MLD sets both link 1 and link 2 to the sleep state, the AP MLD has a pending broadcast multicast packet transmitted, the second DTIM Beacon sent by AP MLD through link 1 indicates that both link 1 and link 2 have broadcast multicast packets to be transmitted, and STA MLD receives the second DTIM Beacon
  • the TBTT corresponding to the Beacon in each link of multiple links is different, and since the Beacon includes a DTIM Beacon, the TBTT corresponding to the DTIM Beacon is also different, so that the DTIM sent on different links can be guaranteed There is a certain interval between Beacons.
  • the second communication device switches at least one first link indicated by the DTIM Beacon to the wake-up state after receiving the DTIM Beacon, it will take a long time, but due to the DTIM Beacon on the first link and the received DTIM There is an interval between Beacons, which is equivalent to reserving time for the second communication device, so the second communication device can successfully receive the broadcast-multicast packet on the first link to prevent loss of the broadcast-multicast packet.
  • the second type the interval between TBTTs corresponding to any two adjacent Beacons on the same link is the first target interval, and the first target intervals corresponding to different links are different.
  • Beacon includes DTIM Beacon.
  • the first target intervals between the TBTTs corresponding to any two adjacent Beacons on the same link are the same, that is, the TBTTs corresponding to the Beacons on the same link are arranged periodically.
  • the first target intervals corresponding to different links are different, that is, the intervals between any two adjacent Beacons in different links are different.
  • the first The communication device may send the Beacon according to different TBTTs of the first target interval corresponding to different links.
  • the Beacon includes a DTIM Beacon, the interval between the TBTTs corresponding to any two adjacent DTIM Beacons in different links is also different.
  • the first target interval of link 1 can be 10 milliseconds, and the first target interval of link 2 can be 14 milliseconds, the first target interval of link 3 may be 22 milliseconds.
  • the intervals between the TBTTs corresponding to any two adjacent Beacons in different links of multiple links are different, so the TBTTs corresponding to Beacons in different links will also be different, and then the TBTTs corresponding to Beacons in different links will be different.
  • the TBTT corresponding to DTIM Beacon is also different, which can ensure that there is a certain interval between DTIM Beacon sent on different links.
  • the second communication device switches at least one first link indicated by the DTIM Beacon to the wake-up state after receiving the DTIM Beacon, it will take a long time, but due to the DTIM Beacon on the first link and the received DTIM There is an interval between Beacons, which is equivalent to reserving time for the second communication device, so the second communication device can successfully receive the broadcast-multicast packet on the first link to prevent loss of the broadcast-multicast packet.
  • the third type the interval between the TBTTs corresponding to any two adjacent DTIM Beacons on the same link is the second target interval, and the second target intervals corresponding to different links are different.
  • the second target interval between the TBTTs corresponding to any two adjacent DTIM Beacons on the same link is the same, that is, the TBTTs corresponding to the DTIM Beacons on the same link are arranged periodically.
  • the second target intervals corresponding to different links are different, that is, the intervals between any two adjacent DTIM Beacons in different links are different.
  • the first target interval A communication device may send a DTIM Beacon according to the TBTT of different second target intervals corresponding to different links. Since the second target intervals corresponding to different links are different, it means that the TBTT corresponding to DTIM Beacon in different links is also different.
  • the intervals between the TBTTs corresponding to any two adjacent DTIM Beacons in different links are different, so the TBTTs corresponding to DTIM Beacons in different links will also be different, so that it can ensure that the TBTTs on different links are sent There is a certain interval between the DTIM Beacons.
  • the second communication device switches at least one first link indicated by the DTIM Beacon to the wake-up state after receiving the DTIM Beacon, it will take a long time, but due to the DTIM Beacon on the first link and the received DTIM There is an interval between Beacons, which is equivalent to reserving time for the second communication device, so the second communication device can successfully receive the broadcast-multicast packet on the first link to prevent loss of the broadcast-multicast packet.
  • the multiple links include a second link, and the second target interval corresponding to other links in the multiple links except the second link is a multiple of the second target interval corresponding to the second link .
  • the second target interval corresponding to the second link is 30 milliseconds
  • the second target intervals corresponding to other links in the plurality of links except the second link are multiples of 30 milliseconds.
  • the multiple may be 1.2 times, 1.7 times, 2.2 times or other values, which are not limited in this embodiment of the present application.
  • the second target interval corresponding to link 1 is set to 10 milliseconds
  • the second target interval corresponding to link 2 The interval is 1.2 times of 10 milliseconds
  • the second target interval corresponding to link 3 is 1.7 times of 10 milliseconds.
  • the second target interval is represented by DTIM count.
  • the value corresponding to the DTIM count represents the ratio of the second target interval to the target duration.
  • the target duration is the interval between TBTTs corresponding to any two adjacent Beacons in the link where the DTIM Beacon is located.
  • the first communication device determines the second link according to the link quality of multiple links, preferentially sets the second target interval of the second link, and then sets the second target interval corresponding to other links as the second target interval.
  • the second link is a link with the highest link quality among the multiple links.
  • the first communication device first determines the link with the highest link quality among the multiple links, and then sets the second target interval for the link.
  • link quality includes at least one of the following:
  • the first communication device and the second communication device transmit wireless signals through an established link to transmit data
  • the quality of the wireless signal of the link may represent the link quality of the link.
  • the wireless signal quality of the link is proportional to the link quality of the link, that is, the higher the wireless signal quality of the link, the higher the link quality of the link, and the lower the wireless signal quality of the link, It indicates that the link quality of the link is lower.
  • the first communication device selects the link with the highest wireless signal quality from the multiple links, and sets the first target interval for the link.
  • the wireless signal quality of the link is represented by the power of the wireless signal received through the link, or the wireless signal quality of the link is represented by other methods.
  • any link in the multiple links may be interfered, resulting in a decrease in the link quality of the link, that is,
  • the interference intensity of the link is inversely proportional to the link quality of the link. If the interference intensity of the link is greater, the link quality of the link is lower, and if the interference intensity of the link is smaller, the link quality of the link is lower. The higher the link quality is.
  • the first communication device selects the link with the lowest interference intensity from the multiple links, and sets the first target interval of the link.
  • the interference strength of the link is represented by the signal-to-noise ratio of the link, or the interference strength of the link is represented by the adjacent channel leakage ratio, or the interference strength of the link is represented by other methods.
  • each of the multiple links may have a load, and the load of the link is the same as the load of the link.
  • the link quality is inversely proportional, that is, the greater the load of the link, the lower the link quality of the link, and the smaller the load of the link, the higher the link quality of the link.
  • the first communication device selects a link with the smallest load from multiple links, and sets the first target interval of the link.
  • the embodiment of the present application is only described by using an example in which the first communication device determines the link with the highest link quality according to one link quality alone. In another embodiment, the first communication device also determines the link with the highest link quality according to various link qualities.
  • the first communication device determines the link with the highest link quality according to the wireless signal quality and the interference intensity.
  • the first communication device determines the link with the highest wireless signal quality and the lowest interference intensity from the multiple links as the link with the highest link quality.
  • the first communication device cannot select the link with the highest wireless signal quality and the lowest interference intensity, then according to the priorities of the wireless signal quality and interference intensity, the link with the highest priority among the wireless signal quality and interference intensity is given priority The link with the highest link quality.
  • the first communication device determines the link with the highest link quality according to the wireless signal quality.
  • the first communication device determines the link with the highest link quality according to the interference intensity.
  • the first communication device determines the link with the highest link quality according to the wireless signal quality and load.
  • the first communication device determines the link with the highest wireless signal quality and the smallest load from the multiple links as the link with the highest link quality.
  • the link with the highest priority among the wireless signal quality and the load is prioritized The link with the highest link quality.
  • the first communication device determines the link with the highest link quality according to the wireless signal quality.
  • the first communication device determines the link with the highest link quality according to the load.
  • the first communication device determines the link with the highest link quality according to the wireless signal quality, interference intensity, and load.
  • the first communication device determines the link with the highest wireless signal quality, the smallest load, and the smallest interference intensity from the multiple links as the link with the highest link quality.
  • the first communication device cannot select the link with the highest wireless signal quality, the smallest load, and the lowest interference intensity, then according to the priority of the wireless signal quality, load, and interference intensity, the wireless signal quality, load And the link with the highest priority in the interference intensity determines the link with the highest link quality.
  • the first communication device determines the link with the highest link quality according to the wireless signal quality.
  • the first communication device determines the link with the highest link quality according to the interference intensity.
  • the first communications device determines the link with the highest link quality according to the load.
  • the embodiments of the present application only illustrate the above three implementation manners respectively.
  • at least two of the above three implementation manners may be combined, and at least two implementation manners are used to ensure that the TBTTs corresponding to DTIM Beacons on different links are different.
  • the TBTT corresponding to each Beacon in multiple links is different.
  • the interval between TBTTs corresponding to any two adjacent Beacons on the same link is the first target interval, and the first target intervals corresponding to different links are different.
  • Beacon includes DTIM Beacon.
  • the TBTT corresponding to each Beacon in the multiple links is different, and the Beacon includes a DTIM Beacon.
  • the interval between the TBTTs corresponding to any two adjacent DTIM Beacons on the same link is the second target interval, and the second target intervals corresponding to different links are different.
  • the embodiment of the present application is only described by taking a different TBTT corresponding to each Beacon in multiple links and different second target intervals corresponding to different links as an example.
  • the second target intervals corresponding to different links may also be the same.
  • the interval between TBTTs corresponding to any two adjacent Beacons on the same link is the first target interval, and the first target intervals corresponding to different links are different.
  • Beacon includes DTIM Beacon.
  • the interval between the TBTTs corresponding to any two adjacent DTIM Beacons on the same link is the second target interval, and the second target intervals corresponding to different links are different.
  • the TBTT corresponding to each Beacon in multiple links is different.
  • the interval between TBTTs corresponding to any two adjacent Beacons on the same link is the first target interval, and the first target intervals corresponding to different links are different.
  • Beacon includes DTIM Beacon.
  • the interval between the TBTTs corresponding to any two adjacent DTIM Beacons on the same link is the second target interval, and the second target intervals corresponding to different links are different.
  • the embodiment of the present application is only described by taking the TBTT corresponding to each Beacon in multiple links as an example, the first target interval corresponding to different links is different, and the second target interval corresponding to different links is different. .
  • the second target intervals corresponding to different links may also be the same.
  • the first communication device is AP MLD
  • the second communication device is STA MLD as an example for description.
  • the AP MLD sends DTIM Beacons at regular intervals through link 1 and link 2 respectively, and the interval between any two adjacent DTIM Beacons in link 1 is twice the target duration, and the link The interval between any two adjacent DTIM Beacons in 2 is three times the target duration.
  • the AP MLD has broadcasts to be transmitted multicast packet
  • the second DTIM Beacon sent by AP MLD through link 1 indicates that both link 1 and link 2 have broadcast multicast packets to be transmitted
  • STA MLD receives the second DTIM Beacon through link 1 Beacon, set link 2 to the wake-up state, and receive the broadcast multicast packet sent by AP MLD through link 2.
  • the intervals between the TBTTs corresponding to any two adjacent Beacons are the same, and the Beacons include DTIM Beacon.
  • the interval between TBTTs corresponding to any two adjacent Beacons is 10 milliseconds, 50 milliseconds, 100 milliseconds or other values, which is not limited in this embodiment of the present application.
  • the intervals between the TBTTs corresponding to any two adjacent DTIM Beacons are the same.
  • the interval between TBTTs corresponding to any two adjacent DTIM Beacons is 10 milliseconds, 20 milliseconds, 30 milliseconds or other values, which is not limited in this embodiment of the present application.
  • the DTIM Beacon indicating at least one first link as an example.
  • the first communication device indicates whether there is a broadcast-multicast packet to be transmitted on the link through the bitmap control field included in the DTIM Beacon.
  • the DTIM Beacon includes a bitmap control field for each link, and the bitmap control field indicates whether there is a broadcast multicast packet to be transmitted on the link.
  • bitmap control field 0
  • bitmap control field 1 it means that the link corresponding to the bitmap control field There are no broadcast-multicast packets to be transmitted on the route.
  • DTIM Beacon includes the bitmap control fields of three links, and the bitmap control field of link 1 is 1, indicating that there is no broadcast multicast packet to be transmitted in link 1, and the bitmap control field of link 2 is 1.
  • the bitmap control field of link 3 is 0, indicating that there is a broadcast multicast packet to be transmitted in link 2, and the bitmap control field of link 3 is 0, indicating that there is broadcast multicast packet to be transmitted in link 3.
  • bitmap control field if the bitmap control field is 1, it means that the link corresponding to the bitmap control field has broadcast multicast packets to be transmitted, and if the bitmap control field is 0, it means that the link corresponding to the bitmap control field There are no broadcast-multicast packets to be transmitted on the route.
  • DTIM Beacon includes bitmap control fields of four links, and the bitmap control field of link 1 is 1, indicating that link 1 has a broadcast multicast packet to be transmitted, and the bitmap control field of link 2 If the control field is 0, it means that there is no broadcast multicast packet to be transmitted in link 2.
  • the bitmap control field of link 3 is 1, which means that there is a broadcast multicast packet to be transmitted in link 3.
  • the bitmap control field of link 4 is If the field is 1, it means that link 4 has broadcast multicast packets to be transmitted.
  • the Beacon sent by the first communication device through each link includes a count field, where the count field indicates whether the Beacon is a DTIM Beacon.
  • the count field is 0, it indicates that the Beacon where the count field is located is a DTIM Beacon, and when the count field is a value other than 0, it indicates that the Beacon where the count field is located is not a DTIM Beacon.
  • the other numerical values are 1, 2, 3, or other specified numerical values, which are not limited in this embodiment of the present application.
  • Step 402 After sending the DTIM Beacon through any link, the first communication device sends the broadcast multicast packet to be transmitted.
  • Step 403 The second communication device receives the DTIM Beacon sent by the first communication device through at least one link among multiple links.
  • the first communication device sends the DTIM Beacon through multiple links, and the second communication device can receive the DTIM Beacon sent by the first communication device through at least one of the multiple links.
  • the second communication device sets at least one link in the multiple links to the wake-up state, and sets other links to the sleep state, so that the second communication device can not only save resource consumption, but also can receive The DTIM Beacon sent by the first communication device is received in the link in the state.
  • Step 404 The second communication device sets at least one first link in an awake state based on the DTIM Beacon.
  • the second communication device After the second communication device receives the DTIM Beacon, since the DTIM Beacon indicates that there is a first link of the broadcast multicast packet to be transmitted, the second communication device can determine the first link based on the received DTIM Beacon, and then send the first link The link is set to the awake state.
  • the DTIM Beacon includes a bitmap control field of each link, and the bitmap control field indicates whether there is a broadcast multicast packet to be transmitted on the link, and the second communication device can determine according to the bitmap control field There are links for broadcast-multicast packets to be transmitted.
  • bitmap control field of each link included in the DTIM Beacon is similar to the bitmap control field in the above step 401, and will not be repeated here.
  • Step 405 the second communication device receives the broadcast multicast packet sent by the first communication device through the link in the awake state.
  • the first communication device sends a broadcast multicast packet through multiple links, and the second communication device sets the link to the wake-up state, then receives the link sent by the first communication device through the link in the wake-up state. broadcast multicast packets.
  • the first communication device sends the broadcast multicast packet after sending the DTIM Beacon through any link, and the TBTT corresponding to the DTIM Beacon on different links is different, so that different links can be guaranteed There is a certain interval between the DTIM Beacon sent on the Internet.
  • the second communication device switches at least one first link indicated by the DTIM Beacon to the wake-up state after receiving the DTIM Beacon, it will take a long time, but due to the DTIM Beacon on the first link and the received DTIM There is an interval between Beacons, which is equivalent to reserving time for the second communication device, so the second communication device can successfully receive the broadcast-multicast packet on the first link to prevent loss of the broadcast-multicast packet.
  • Fig. 7 shows a block diagram of a data transmission device provided by an exemplary embodiment of the present application, the device is set in the first communication device, there are multiple links between the first communication device and the second communication device, the device includes :
  • the sending module 701 is configured to send a transmission data indication mapping beacon DTIM Beacon through each link in the multiple links, and the DTIM Beacon indicates at least one first link, and the first link is a pending link in the multiple links.
  • the scheduled beacon transmission time TBTT corresponding to the DTIM Beacon on different links is different.
  • the TBTT corresponding to each Beacon in the multiple links is different;
  • Beacon includes DTIM Beacon.
  • the interval between the TBTTs corresponding to any two adjacent Beacons on the same link is the first target interval, and the first target intervals corresponding to different links are different;
  • Beacon includes DTIM Beacon.
  • the interval between the TBTTs corresponding to any two adjacent DTIM Beacons on the same link is the second target interval, and the second target intervals corresponding to different links are different.
  • the multiple links include the second link, and the second target interval corresponding to the links other than the second link in the multiple links is the second target interval corresponding to the second link multiples of .
  • the second link is the link with the highest link quality among the multiple links.
  • link quality includes at least one of the following:
  • intervals between TBTTs corresponding to any two adjacent Beacons are the same.
  • the intervals between the TBTTs corresponding to any two adjacent DTIM Beacons are the same.
  • the sending module 701 is further configured to send the broadcast multicast packet to be transmitted after sending the DTIM Beacon through any link.
  • the DTIM Beacon includes a bitmap control field for each link, and the bitmap control field indicates whether there is a broadcast multicast packet to be transmitted on the link.
  • the Beacon sent by the first communication device through each link includes a count field, and the count field indicates whether the Beacon is a DTIM Beacon.
  • the division of the above-mentioned functional modules is used as an example for illustration. In practical applications, the above-mentioned function allocation can be completed by different functional modules according to the needs.
  • the internal structure of the device is divided into different functional modules to complete all or part of the functions described above.
  • the device and the method embodiment provided by the above embodiment belong to the same idea, and the specific implementation process thereof is detailed in the method embodiment, and will not be repeated here.
  • Fig. 8 shows a block diagram of a data transmission device provided by an exemplary embodiment of the present application, the device is set in the second communication device, there are multiple links between the second communication device and the first communication device, the device includes :
  • the receiving module 801 is configured to receive a transmission data indicating mapping beacon DTIM Beacon sent by the first communication device through at least one of the multiple links, and the DTIM Beacon indicates at least one first link, and the first link is multiple There is a link of broadcast and multicast packets to be transmitted in the links;
  • the scheduled beacon transmission time TBTT corresponding to the DTIM Beacon on different links is different.
  • the device further includes:
  • a setting module 802 configured to set at least one first link to a wake-up state based on the DTIM Beacon;
  • the receiving module 801 is configured to receive the broadcast multicast packet sent by the first communication device through the link in the awake state.
  • the TBTT corresponding to each Beacon in the multiple links is different, and the Beacon includes a DTIM Beacon.
  • the interval between the TBTTs corresponding to any two adjacent Beacons on the same link is the first target interval, and the first target intervals corresponding to different links are different;
  • Beacon includes DTIM Beacon.
  • the interval between the TBTTs corresponding to any two adjacent DTIM Beacons on the same link is the second target interval, and the second target intervals corresponding to different links are different.
  • the plurality of links includes a second link
  • the second target intervals corresponding to links other than the second link among the multiple links are multiples of the second target intervals corresponding to the second link.
  • the second link is the link with the highest link quality among the multiple links.
  • At least one link is a link whose link quality is better than the target link quality.
  • the link quality of at least one link is better than the target link quality comprises at least one of the following:
  • the wireless signal quality of at least one link is not lower than the target signal quality
  • the interference strength of at least one link is not greater than the target interference strength
  • the load of at least one link is no greater than the target load.
  • the intervals between the TBTTs corresponding to any two adjacent DTIM Beacons are the same.
  • the interval between the TBTTs corresponding to any two adjacent Beacons is the same;
  • Beacon includes DTIM Beacon.
  • the bitmap control field of each link of the DTIM Beacon indicates whether there is a broadcast multicast packet to be transmitted on the link.
  • the Beacon sent by the first communication device through each link includes a count field, and the count field indicates whether the Beacon is a DTIM Beacon.
  • the division of the above-mentioned functional modules is used as an example for illustration. In practical applications, the above-mentioned function allocation can be completed by different functional modules according to the needs.
  • the internal structure of the device is divided into different functional modules to complete all or part of the functions described above.
  • the device and the method embodiment provided by the above embodiment belong to the same idea, and the specific implementation process thereof is detailed in the method embodiment, and will not be repeated here.
  • FIG. 10 shows a schematic structural diagram of a communication device provided by an exemplary embodiment of the present application.
  • the communication device includes: a processor 1001 , a receiver 1002 , a transmitter 1003 , a memory 1004 and a bus 1005 .
  • the processor 1001 includes one or more processing cores, and the processor 1001 executes various functional applications and information processing by running software programs and modules.
  • the processor 1001 includes an ASIC (Application Specific Integrated Circuit, Application Specific Integrated Circuit), and the ASIC is used to perform information processing.
  • ASIC Application Specific Integrated Circuit, Application Specific Integrated Circuit
  • the receiver 1002 and the transmitter 1003 can be realized as a communication component, and the communication component can be a communication chip.
  • the memory 1004 is connected to the processor 1001 through a bus 1005 .
  • the memory 1004 may be used to store at least one program code, and the processor 1001 is used to execute the at least one program code, so as to implement various steps in the foregoing method embodiments.
  • Memory 1004 can be realized by any type of volatile or nonvolatile storage device or their combination, volatile or nonvolatile storage device includes but not limited to: magnetic disk or optical disk, EEPROM (Electrically Erasable Programmable Read Only Memory , Electrically Erasable Programmable Read Only Memory), EPROM (Erasable Programmable Read Only Memory, Erasable Programmable Read Only Memory), SRAM (Static Random Access Memory, Static Random Access Memory), ROM (Read Only Memory, Read-only memory), magnetic memory, flash memory, programmable read-only memory (Programmable Read Only Memory, PROM).
  • EEPROM Electrically Erasable Programmable Read Only Memory
  • EPROM Erasable Programmable Read Only Memory, Erasable Programmable Read Only Memory
  • SRAM Static Random Access Memory, Static Random Access Memory
  • ROM Read Only Memory, Read-only memory
  • magnetic memory flash memory
  • PROM programmable read-only memory
  • a computer-readable storage medium is also provided, and executable program code is stored in the readable storage medium, and the executable program code is loaded and executed by a processor to implement the implementation of each of the above methods.
  • the example provides a data transmission method performed by a communication device.
  • a chip is provided, the chip includes programmable logic circuits and/or program instructions, and when the chip is run on a site multi-link device or an access point multi-link device, a In order to realize the data transmission method provided by each method embodiment.
  • a computer program product is provided, and when the computer program product is executed by a processor of a station multi-link device or an access point multi-link device, it is used to implement the methods provided by the foregoing method embodiments. data transfer method.
  • the program can be stored in a computer-readable storage medium.
  • the above-mentioned The storage medium mentioned may be a read-only memory, a magnetic disk or an optical disk, and the like.

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Abstract

本申请公开了一种数据传输方法、装置、设备及存储介质，涉及移动通信领域。该方法包括：第一通信设备通过多条链路中的每条链路，发送DTIM Beacon，DTIM Beacon指示至少一条第一链路；其中，多条链路中，不同链路上的DTIM Beacon对应的TBTT不同。本申请实施例提供的方法中，由于第一链路上的DTIM Beacon与已接收到的DTIM Beacon之间存在间隔，相当于为第二通信设备预留了时间，因此第二通信设备能够成功地接收到第一链路上的广播多播包，防止广播多播包丢失。

Description

数据传输方法、装置、设备及存储介质 技术领域
本申请涉及移动通信领域，特别涉及一种数据传输方法、装置、设备及存储介质。
背景技术
随着无线通信技术的快速发展，第一通信设备与第二通信设备之间可以建立多条链路，进而通过多条链路进行通信。
相关技术中，第一通信设备会在每条链路的DTIM(Delivery Traffic Indication Map，传送数据指示映射)Beacon(信标)对应的TBTT(Targeted Beacon Transmit Time，信标预定发送时间)，发送DTIM Beacon，并在发送DTIM Beacon之后发送待传输的广播多播包。
但是，不同链路中的DTIM Beacon对应的TBTT可能相同，若通过任一处于唤醒状态的链路接收到DTIM Beacon，第二通信设备控制其他链路也切换至唤醒状态时，会由于切换状态耗费的时长而无法接收到第一通信设备发送的广播多播包，导致广播多播包丢失。
发明内容
本申请实施例提供了一种数据传输方法、装置、设备及存储介质，由于第一链路上的DTIM Beacon与已接收到的DTIM Beacon之间存在间隔，相当于为第二通信设备预留了时间，因此第二通信设备能够成功地接收到第一链路上的广播多播包，防止广播多播包丢失。所述技术方案如下：
根据本申请的一个方面，提供了一种数据传输方法，所述方法由第一通信设备执行，所述第一通信设备与第二通信设备之间具有多条链路，所述方法包括：
所述第一通信设备通过所述多条链路中的每条链路，发送传送数据指示映射信标DTIM Beacon，所述DTIM Beacon指示至少一条第一链路，所述第一链路为所述多条链路中存在待传输的广播多播包的链路；
其中，所述多条链路中，不同链路上的DTIM Beacon对应的信标预定传送时间TBTT不同。
根据本申请的一个方面，提供了一种数据传输方法，所述方法由第二通信设备执行，所述第二通信设备与第一通信设备之间具有多条链路，所述方法包括：
所述第二通信设备通过所述多条链路中的至少一条链路，接收所述第一通信设备发送的传送数据指示映射信标DTIM Beacon，所述DTIM Beacon指示至少一条第一链路，所述第一链路为所述多条链路中存在待传输的广播多播包的链路；
其中，所述多条链路中，不同链路上的DTIM Beacon对应的信标预定传输时间TBTT不同。
根据本申请的一个方面，提供了一种数据传输装置，所述装置设置在第一通信设备中，所述第一通信设备与第二通信设备之间具有多条链路，所述装置包括：
发送模块，用于通过所述多条链路中的每条链路，发送传送数据指示映射信标DTIM Beacon，所述DTIM Beacon指示至少一条第一链路，所述第一链路为所述多条链路中存在待传输的广播多播包的链路；
其中，所述多条链路中，不同链路上的DTIM Beacon对应的信标预定传送时间TBTT不同。
根据本申请的一个方面，提供了一种数据传输装置，所述装置设置在第二通信设备中，所述第二通信设备与第一通信设备之间具有多条链路，所述装置包括：
接收模块，用于通过所述多条链路中的至少一条链路，接收所述第一通信设备发送的传送数据指示映射信标DTIM Beacon，所述DTIM Beacon指示至少一条第一链路，所述第一链 路为所述多条链路中存在待传输的广播多播包的链路；
其中，所述多条链路中，不同链路上的DTIM Beacon对应的信标预定传输时间TBTT不同。
根据本申请的一个方面，提供了一种第一通信设备，所述第一通信设备包括：处理器；与所述处理器相连的收发器；用于存储所述处理器的可执行指令的存储器；其中，所述处理器被配置为加载并执行所述可执行指令以实现如上述方面所述的数据传输方法。
根据本申请的一个方面，提供了一种第二通信设备，所述第二通信设备包括：处理器；与所述处理器相连的收发器；用于存储所述处理器的可执行指令的存储器；其中，所述处理器被配置为加载并执行所述可执行指令以实现如上述方面所述的数据传输方法。
根据本申请的一个方面，提供了一种计算机可读存储介质，所述可读存储介质中存储有可执行程序代码，所述可执行程序代码由处理器加载并执行以实现如上述方面所述的数据传输方法。
根据本申请的一个方面，提供了一种芯片，所述芯片包括可编程逻辑电路和/或程序指令，当所述芯片在第一通信设备或第二通信设备上运行时，用于实现如上述方面所述的数据传输方法。
根据本申请的一个方面，提供了一种计算机程序产品，当所述计算机程序产品被第一通信设备或第二通信设备的处理器执行时，其用于实现上述方面所述的数据传输方法。
根据本申请的一个方面，提供了一种计算机程序由第一通信设备或第二通信设备的处理器执行，以实现上述方面所述的数据传输方法。
本申请实施例提供的技术方案至少包括如下有益效果：
本申请实施例中，第一通信设备通过任一条链路发送DTIM Beacon之后再发送广播多播包，而且不同链路上的DTIM Beacon对应的TBTT不同，这样可以保证不同链路上发送的DTIM Beacon之间存在一定的间隔。那么，虽然第二通信设备在接收到DTIM Beacon后将DTIM Beacon指示的至少一条第一链路切换为唤醒状态的过程会耗费时长，但是由于第一链路上的DTIM Beacon与已接收到的DTIM Beacon之间存在间隔，相当于为第二通信设备预留了时间，因此第二通信设备能够成功地接收到第一链路上的广播多播包，防止广播多播包丢失。
附图说明
为了更清楚地说明本申请实施例中的技术方案，下面将对实施例描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本申请的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1示出了本申请一个示例性实施例提供的通信系统的框图。
图2示出了本申请一个示例性实施例提供的数据传输方法的示意图。
图3示出了本申请一个示例性实施例提供的数据传输方法的示意图。
图4示出了本申请一个示例性实施例提供的数据传输方法的流程图。
图5示出了本申请一个示例性实施例提供的数据传输方法的示意图。
图6示出了本申请一个示例性实施例提供的数据传输方法的示意图。
图7示出了本申请一个示例性实施例提供的数据传输装置的框图。
图8示出了本申请一个示例性实施例提供的数据传输装置的框图。
图9示出了本申请一个示例性实施例提供的数据传输装置的框图。
图10示出了本申请一个示例性实施例提供的通信设备的结构示意图。
具体实施方式
为使本申请的目的、技术方案和优点更加清楚，下面将结合附图对本申请实施方式作进一步地详细描述。
首先，对本申请的通信系统进行说明：
图1示出了本申请一个示例性实施例提供的通信系统的框图，该通信系统可以包括：第一通信设备11和第二通信设备12。
其中，第一通信设备11与第二通信设备12之间具有多条链路，每条链路均可以传输数据包。该第一通信设备11为无线接入点，该第一通信设备11为无线网络的创建者，是无线网络的中心节点。第二通信设备12是连接到第一通信设备11创建的无线网络的设备。
在一些实施例中，第一通信设备11可以指无线路由器设备、无线调制解调器或者其他设备，本申请实施例不作限定。
在一些实施例中，第二通信设备12可以指UE(User Equipment，用户设备)、接入终端、用户单元、用户站、移动站、移动台、远方站、远程终端、移动设备、无线通信设备、用户代理或用户装置。可选地，终端设备13还可以是蜂窝电话、无绳电话、SIP(Session Initiation Protocol，会话启动协议)电话、WLL(Wireless Local Loop，无线本地环路)站、PDA(Personal Digita1 Assistant，个人数字处理)、具有无线通信功能的手持设备、计算设备或连接到无线调制解调器的其它处理设备、车载设备、可穿戴设备，5GS(5th Generation System，第五代移动通信系统)中的终端设备或者未来演进的PLMN(Pub1ic Land Mobi1e Network，公用陆地移动通信网络)中的终端设备等，本申请实施例对此并不限定。为方便描述，上面提到的设备统称为STA MLD。
在一些实施例中，第一通信设备为AP MLD(Access Point Multiple Links Device，接入点多链路设备)，第二通信设备为STA MLD(Station Multiple Links Device，站点多链路设备)。
本申请实施例描述的网络架构以及业务场景是为了更加清楚地说明本申请实施例的技术方案，并不构成对本申请实施例提供的技术方案的限定，本领域普通技术人员可知，随着网络架构的演变和新业务场景的出现，本申请实施例提供的技术方案对于类似的技术问题，同样适用。
下面，对相关技术进行说明：
第一通信设备与第二通信设备之间建立有多条链路。第一通信设备会在每条链路的DTIMBeacon对应的TBTT，发送DTIM Beacon，并在发送DTIM Beacon之后发送待传输的广播多播包。其中，若通过多条链路中的第一链路连接的至少一个第二通信设备处于睡眠状态，且在第一链路上存在待传输的广播多播包的情况下，第一通信设备通过每条链路发送的DTIM Beacon会指示该第一链路存在待传输的广播多播包。而第二通信设备通过任一处于唤醒状态的第二链路接收到DTIM Beacon后，将该DTIM Beacon指示的第一链路也切换至唤醒状态，以便通过该第一链路接收广播多播包。
由于不同的链路中的DTIM Beacon对应的TBTT可能相同，第一通信设备在通过第一链路发送DTIM Beacon之后就会发送广播多播包，而第二通信设备通过第二链路接收到DTIM Beacon之后，再将DTIM Beacon指示的第一链路切换至唤醒状态，此过程需要耗费时长，因此无法接收第一链路上在切换至唤醒状态之前所发送的广播多播包，导致广播多播包丢失。
下面，以第一通信设备为AP MLD，第二通信设备为STA MLD为例对相关技术进行说明。AP MLD和STA MLD之间的具有多条链路，AP MLD在每条链路发送的DTIM Beacon指示存在待传输的广播多播包的链路。例如，如图2所示，AP MLD在链路1和链路2上均会发送DTIM Beacon，且链路1中相邻的任两个DTIM Beacon对应的TBTT之间的间隔为目标时长的两倍，链路2中相邻的任两个DTIM Beacon对应的TBTT之间的间隔为目标时长。AP MLD确定在链路2上存在待传输的广播多播包，且在链路1上存在待传输的广播多播包，并且由于AP MLD首先通过链路2发送第二个DTIM Beacon，因此该链路2上的第二个DTIM Beacon需要指示链路1和链路2上均存在待传输的广播多播包，并且AP MLD在链路1和链路2上分别发送DTIM Beacon之后，再通过链路1和链路2发送广播多播包。
但是，由于AP MLD在不同链路上DTIM Beacon对应的TBTT是任意的，导致不同链路 上的DTIM Beacon对应的TBTT可能相同，并且由于STA MLD监听多条链路中的至少一条链路，STA MLD在至少一条链路中的任一条链路接收到DTIM Beacon之后，将DTIM Beacon指示的链路设置为唤醒状态，此过程需要耗费时长，因此无法接收DTIM Beacon指示的链路上在切换至唤醒状态之前所发送的广播多播包，导致广播多播包丢失。
例如，如图3所示，链路1和链路2中DTIM Beacon对应的TBTT很接近，且STA MLD默认只选择在链路1上监听Beacon或DTIM Beacon。若AP MLD通过链路1的第二个DTIM Beacon指示链路1和链路2均存在待传输的广播多播包，STA MLD通过链路1收到该DTIM Beacon后，继续保持链路1处于唤醒状态，以接收链路1上的广播多播包。并且，STA MLD将链路2切换为唤醒状态，由于这个过程需要一定时长，导致链路2在处于唤醒状态并可以接收广播数据包的状态时，AP MLD已经在链路2上发送完第一个广播多播包了，因此STA MLD无法接收到这个广播多播包，导致该广播多播包丢失。
图4示出了本申请一个示例性实施例提供的数据传输方法的流程图，该方法由如图1所示的第一通信设备和第二通信设备执行，第一通信设备与第二通信设备之间具有多条链路，该方法包括以下内容中的至少部分内容：
步骤401：第一通信设备通过多条链路中的每条链路，发送DTIM Beacon，DTIM Beacon指示至少一条第一链路，第一链路为多条链路中存在待传输的广播多播包的链路，其中，多条链路中，不同链路上的DTIM Beacon对应的TBTT不同。
在本申请实施例中，第一通信设备会在每条链路上设置DTIM Beacon对应的TBTT，且不同链路上的DTIM Beacon对应的TBTT不同，在到达任一条链路设置的某一TBTT时，则第一通信设备通过该链路发送DTIM Beacon。并且，第一通信设备还会通过该DTIM Beacon指示多条链路中包括的、存在待传输的广播多播包的至少一条第一链路。
例如，第一通信设备通过该DTIM Beacon指示多条链路中包括的、存在待传输的广播多播包的第一链路有一条。或者，第一通信设备通过该DTIM Beacon指示多条链路中包括的、存在待传输的广播多播包的第一链路有三条，或者，第一通信设备还会指示其他数量的第一链路，本申请实施例不作限定。
可选地，第一通信设备为AP MLD，第二通信设备为STA MLD。
在一些实施例中，不同链路上的DTIM Beacon对应的TBTT不同可以采用以下任一种方式实现，下面分别每种实现方式进行说明：
第一种：多条链路中每个Beacon对应的TBTT不同，其中，Beacon包括DTIM Beacon。
在本申请实施例中，第一通信设备将多条链路中每个Beacon对应的TBTT设置为不同的，则第一通信设备可以通过每条链路在不同的TBTT发送Beacon。
例如，第一通信设备与第二通信设备之间建立有链路1和链路2，则链路1和链路2中的每个Beacon对应的TBTT均不同。
需要说明的是，本申请实施例中的Beacon可以为DTIM Beacon，或者可以是除DTIM Beacon以外的普通Beacon。例如，本申请实施例中的Beacon还可以均为除DTIM Beacon以外的普通Beacon。又例如，本申请实施例中的Beacon还可以均为DTIM Beacon。又例如，本申请实施例中的Beacon中的一部分为DTIM Beacon，一部分为除DTIM Beacon以外的普通Beacon。
可选地，多条链路中每条链路中相邻的任两个TBTT对应的时间点之间的间隔相同。
可选地，链路1中Beacon对应的TBTT与链路2中Beacon对应的TBTT不同，并且链路1中的第一个Beacon对应的TBTT和链路2中的第一个Beacon对应的TBTT之间的间隔为目标时长。
其中，该目标时长为预先设置的时长，或者为通过其他方式设置的时长，本申请实施例不作限定。
需要说明的是，本申请实施例中的目标时长不等于任一链路中相邻的任两个Beacon对应 的TBTT之间的间隔。
例如，如图5所示，以第一通信设备为AP MLD，第二通信设备为STA MLD为例进行说明。其中，AP MLD分别通过链路1和链路2每隔一定周期发送Beacon，链路1和链路2发送Beacon的周期相同，并且每条链路的Beacon对应的TBTT如图5所示，链路1中的第一个Beacon对应的TBTT与链路2中的第一个Beacon对应的TBTT不同，且这两个TBTT之间的间隔为目标时长，链路1中的第二个Beacon对应的TBTT与链路2中的第二个Beacon对应的TBTT不同，且这两个TBTT之间的间隔为一个目标时长，以此类推，链路1中的第n个Beacon对应的TBTT和链路2中的第n个Beacon对应的TBTT不同，且这两个TBTT之间的间隔为目标时长，并且若在STA MLD将链路1和链路2均设置为睡眠状态的情况下，AP MLD存在待传输的广播多播包，则AP MLD通过链路1发送的第二个DTIM Beacon指示链路1和链路2均存在待传输的广播多播包，并且STA MLD根据通过链路1接收的第二个DTIM Beacon，将链路2设置为唤醒状态，接收AP MLD通过链路2发送的广播多播包。
本申请实施例中，多条链路每条链路中的Beacon对应的TBTT均不同，并且由于Beacon包括DTIM Beacon，因此DTIM Beacon对应的TBTT也均不同，这样可以保证不同链路上发送的DTIM Beacon之间存在一定的间隔。那么，虽然第二通信设备在接收到DTIM Beacon后将DTIM Beacon指示的至少一条第一链路切换为唤醒状态的过程会耗费时长，但是由于第一链路上的DTIM Beacon与已接收到的DTIM Beacon之间存在间隔，相当于为第二通信设备预留了时间，因此第二通信设备能够成功地接收到第一链路上的广播多播包，防止广播多播包丢失。
第二种：同一链路上相邻的任两个Beacon对应的TBTT之间的间隔为第一目标间隔，不同链路对应的第一目标间隔不同。其中，Beacon包括DTIM Beacon。
其中，同一链路上相邻的任两个Beacon对应的TBTT之间的第一目标间隔均相同，也即是同一链路上的Beacon对应的TBTT为周期性排列。
并且，不同链路对应的第一目标间隔不同，也即是不同链路中相邻的任两个Beacon之间的间隔不同。
在本申请实施例中，多条链路中同一链路上相邻的任两个Beacon对应的TBTT之间的第一目标间隔相同，而不同链路对应的第一目标间隔不同，则第一通信设备可以按照不同链路对应的不同的第一目标间隔的TBTT发送Beacon。并且，由于Beacon包括DTIM Beacon，因此不同链路中相邻任两个DTIM Beacon对应的TBTT之间的间隔也不同。
例如，第一通信设备与第二通信设备之间具有链路1、链路2和链路3，则链路1的第一目标间隔可以为10毫秒、链路2的第一目标间隔可以为14毫秒、链路3的第一目标间隔可以为22毫秒。
本申请实施例中，多条链路不同链路中相邻的任两个Beacon对应的TBTT之间的间隔不同，因此不同链路中Beacon对应的TBTT也会不同，进而使不同链路中的DTIM Beacon对应的TBTT也不同，这样可以保证不同链路上发送的DTIM Beacon之间存在一定的间隔。那么，虽然第二通信设备在接收到DTIM Beacon后将DTIM Beacon指示的至少一条第一链路切换为唤醒状态的过程会耗费时长，但是由于第一链路上的DTIM Beacon与已接收到的DTIM Beacon之间存在间隔，相当于为第二通信设备预留了时间，因此第二通信设备能够成功地接收到第一链路上的广播多播包，防止广播多播包丢失。
第三种：同一链路上相邻的任两个DTIM Beacon对应的TBTT之间的间隔为第二目标间隔，不同链路对应的第二目标间隔不同。
其中，同一链路上相邻的任两个DTIM Beacon对应的TBTT之间的第二目标间隔均相同，也即是同一链路上的DTIM Beacon对应的TBTT为周期性排列。
并且，不同链路对应的第二目标间隔不同，也即是不同链路中相邻的任两个DTIM Beacon之间的间隔不同。
在本申请实施例中，多条链路中同一链路上相邻的任两个DTIM Beacon对应的TBTT之 间的第一目标间隔相同，并且不同链路对应的第二目标间隔不同，则第一通信设备可以按照不同链路对应的不同的第二目标间隔的TBTT发送DTIM Beacon，由于不同链路对应的第二目标间隔不同，说明不同链路中DTIM Beacon对应的TBTT也不同。
本申请实施例中，不同链路中的相邻的任两个DTIM Beacon对应的TBTT之间的间隔不同，因此不同链路中DTIM Beacon对应的TBTT也会不同，这样可以保证不同链路上发送的DTIM Beacon之间存在一定的间隔。那么，虽然第二通信设备在接收到DTIM Beacon后将DTIM Beacon指示的至少一条第一链路切换为唤醒状态的过程会耗费时长，但是由于第一链路上的DTIM Beacon与已接收到的DTIM Beacon之间存在间隔，相当于为第二通信设备预留了时间，因此第二通信设备能够成功地接收到第一链路上的广播多播包，防止广播多播包丢失。
可选地，多条链路中包括第二链路，多条链路中除第二链路之外的其他链路对应的第二目标间隔是第二链路对应的第二目标间隔的倍数。
例如，若第二链路对应的第二目标间隔为30毫秒，则多条链路中除第二链路之外的其他链路对应的第二目标间隔是30毫秒的倍数。
其中，该倍数可以为1.2倍、1.7倍、2.2倍或者其他数值，本申请实施例不作限定。
例如，若第一通信设备与第二通信设备之间具有链路1、链路2和链路3，链路1对应的第二目标间隔设置为10毫秒，则链路2对应的第二目标间隔为10毫秒的1.2倍，链路3对应的第二目标间隔为10毫秒的1.7倍。
在一些实施例中，该第二目标间隔采用DTIM count(计数)表示。该DTIM count对应的数值表示第二目标间隔与目标时长的比值。其中，该目标时长为DTIM Beacon所在链路中相邻任两个Beacon对应的TBTT之间的间隔。
可选地，第一通信设备根据多条链路的链路质量确定第二链路，优先设置该第二链路的第二目标间隔，再将其他链路对应的第二目标间隔设置为第二链路对应的第二目标间隔的倍数。
其中，第二链路为多条链路中链路质量最高的链路。在本申请实施例中，第一通信设备先确定多条链路中链路质量最高的链路，再设置该链路的第二目标间隔。
另外，链路质量包括以下至少一项：
(1)无线信号质量。
在本申请实施例中，第一通信设备与第二通信设备之间通过已建立的链路发射无线信号以传输数据，而链路的无线信号质量可以代表该链路的链路质量。链路的无线信号质量与该链路的链路质量成正比，也即是链路的无线信号质量越高，说明该链路的链路质量越高，而链路的无线信号质量越低，说明该链路的链路质量越低。
例如，第一通信设备从多条链路中选取无线信号质量最高的链路，设置该链路的第一目标间隔。
在一些实施例中，该链路的无线信号质量采用通过该链路接收到的无线信号的功率表示，或者，该链路的无线信号质量采用其他方式表示。
(2)干扰强度。
在本申请实施例中，第一通信设备与第二通信设备之间具有多条链路，多条链路中的任一条链路可能会受到干扰，导致链路的链路质量降低，也即是链路的干扰强度与链路的链路质量成反比，若链路的干扰强度越大，说明该链路的链路质量越低，而若链路的干扰强度越小，说明该链路的链路质量越高。
例如，第一通信设备从多条链路中选取干扰强度最小的链路，设置该链路的第一目标间隔。
在一些实施例中，链路的干扰强度采用该链路的信噪比表示，或者，链路的干扰强度采用邻道泄漏比表示，或者，该链路的干扰强度采用其他方式表示。
(3)负载量。
在本申请实施例中，第一通信设备与第二通信设备之间具有多条链路，多条链路中的每条链路均可以具有负载量，且链路的负载量与链路的链路质量成反比，也即是链路的负载量越大，链路的链路质量越低，而链路的负载量越小，链路的链路质量越高。
例如，第一通信设备从多条链路中选取负载量最小的链路，设置该链路的第一目标间隔。
需要说明的是，本申请实施例仅是以第一通信设备单独根据一种链路质量确定链路质量最高的链路为例进行说明。而在另一实施例中，第一通信设备还会根据多种链路质量确定链路质量最高的链路。
在一些实施例中，第一通信设备根据无线信号质量和干扰强度确定链路质量最高的链路。
第一通信设备从多条链路中确定无线信号质量最高，且干扰强度最小的链路作为链路质量最高的链路。
可选地，若第一通信设备无法选择无线信号质量最高，且干扰强度最小的链路，则根据无线信号质量和干扰强度的优先级，优先根据无线信号质量和干扰强度中优先级高的确定链路质量最高的链路。
例如，若无线信号质量的优先级高于干扰强度，则第一通信设备根据无线信号质量确定链路质量最高的链路。
或者，若干扰强度的优先级高于无线信号质量的优先级，则第一通信设备根据干扰强度确定链路质量最高的链路。
在另一些实施例中，第一通信设备根据无线信号质量和负载量确定链路质量最高的链路。
第一通信设备从多条链路中确定无线信号质量最高，且负载量最小的链路作为链路质量最高的链路。
可选地，若第一通信设备无法选择无线信号质量最高，且负载量最小的链路，则根据无线信号质量和负载量的优先级，优先根据无线信号质量和负载量中优先级高的确定链路质量最高的链路。
例如，若无线信号质量的优先级高于负载量，则第一通信设备根据无线信号质量确定链路质量最高的链路。
或者，若负载量的优先级高于无线信号质量的优先级，则第一通信设备根据负载量确定链路质量最高的链路。
在另一些实施例中，第一通信设备根据无线信号质量、干扰强度和负载量确定链路质量最高的链路。
第一通信设备从多条链路中确定无线信号质量最高、负载量最小且干扰强度最小的链路作为链路质量最高的链路。
可选地，若第一通信设备无法选择无线信号质量最高、负载量最小且干扰强度最小的链路，则根据无线信号质量、负载量和干扰强度的优先级，优先根据无线信号质量、负载量和干扰强度中优先级高的确定链路质量最高的链路。
例如，若无线信号质量的优先级最高，则第一通信设备根据无线信号质量确定链路质量最高的链路。
或者，若干扰强度的优先级最高，则第一通信设备根据干扰强度确定链路质量最高的链路。
或者，若负载量的优先级最高，则第一通信设备根据负载量确定链路质量最高的链路。
需要说明的是，本申请实施例仅是分别对上述三种实现方式进行说明。在另一实施例中，上述三种实现方式中的至少两种实现方式还可以结合，通过至少两种实现方式来保证不同链路上的DTIM Beacon对应的TBTT不同。
例如，多条链路中每个Beacon对应的TBTT不同。并且，同一链路上相邻的任两个Beacon对应的TBTT之间的间隔为第一目标间隔，不同链路对应的第一目标间隔不同。其中，Beacon包括DTIM Beacon。
又例如，多条链路中每个Beacon对应的TBTT不同，其中，Beacon包括DTIM Beacon。 并且，同一链路上相邻的任两个DTIM Beacon对应的TBTT之间的间隔为第二目标间隔，不同链路对应的第二目标间隔不同。
需要说明的是，本申请实施例仅是以多条链路中每个Beacon对应的TBTT不同，且不同链路对应的第二目标间隔不同为例进行说明。在另一实施例中，在多条链路中每个Beacon对应的TBTT不同的情况下，不同链路对应的第二目标间隔还可以相同。
又例如，同一链路上相邻的任两个Beacon对应的TBTT之间的间隔为第一目标间隔，不同链路对应的第一目标间隔不同。其中，Beacon包括DTIM Beacon。并且，同一链路上相邻的任两个DTIM Beacon对应的TBTT之间的间隔为第二目标间隔，不同链路对应的第二目标间隔不同。
又例如，多条链路中每个Beacon对应的TBTT不同。并且，同一链路上相邻的任两个Beacon对应的TBTT之间的间隔为第一目标间隔，不同链路对应的第一目标间隔不同。其中，Beacon包括DTIM Beacon。并且，同一链路上相邻的任两个DTIM Beacon对应的TBTT之间的间隔为第二目标间隔，不同链路对应的第二目标间隔不同。
需要说明的是，本申请实施例仅是以多条链路中每个Beacon对应的TBTT不同、不同链路对应的第一目标间隔不同且不同链路对应的第二目标间隔不同为例进行说明。在另一实施例中，在多条链路中每个Beacon对应的TBTT不同、且不同链路对应的第一目标间隔不同的情况下，不同链路对应的第二目标间隔还可以相同。
例如，如图6所示，以第一通信设备为AP MLD，第二通信设备为STA MLD为例进行说明。其中，AP MLD分别通过链路1和链路2每隔一定的时间间隔发送DTIM Beacon，并且链路1中的相邻的任两个DTIM Beacon之间的间隔为目标时长的两倍，链路2中的相邻的任两个DTIM Beacon之间的间隔为目标时长的三倍，若在STA MLD将链路1和链路2均设置为睡眠状态的情况下，AP MLD存在待传输的广播多播包，则AP MLD通过链路1发送的第二个DTIM Beacon指示链路1和链路2均存在待传输的广播多播包，并且STA MLD根据通过链路1接收的第二个DTIM Beacon，将链路2设置为唤醒状态，接收AP MLD通过链路2发送的广播多播包。
在一些实施例中，每条链路中，相邻任两个Beacon对应的TBTT之间的间隔相同，且Beacon包括DTIM Beacon。
可选地，相邻任两个Beacon对应的TBTT之间的间隔为10毫秒、50毫秒、100毫秒或者其他数值，本申请实施例不作限定。
在另一些实施例中，每条链路中，相邻的任两个DTIM Beacon对应的TBTT之间的间隔相同。
可选地，相邻的任两个DTIM Beacon对应的TBTT之间的间隔为10毫秒、20毫秒、30毫秒或其他数值，本申请实施例不作限定。
需要说明的是，本申请实施例仅是以DTIM Beacon指示至少一条第一链路为例进行说明。而在另一实施例中，第一通信设备通过DTIM Beacon包括的位图控制字段指示链路是否存在待传输的广播多播包。
在一些实施例中，DTIM Beacon包括每条链路的位图控制字段，位图控制字段指示链路是否存在待传输的广播多播包。
可选地，若位图控制字段为0，则表示该位图控制字段对应的链路存在待传输的广播多播包，而位图控制字段为1，则表示该位图控制字段对应的链路不存在待传输的广播多播包。
例如，本申请实施例中，DTIM Beacon包括三条链路的位图控制字段，链路1的位图控制字段为1，表示链路1不存在待传输的广播多播包，链路2的位图控制字段为0，表示链路2存在待传输的广播多播包，链路3的位图控制字段为0，表示链路3存在待传输的广播多播包。
可选地，若位图控制字段为1，则表示该位图控制字段对应的链路存在待传输的广播多播包，而位图控制字段为0，则表示该位图控制字段对应的链路不存在待传输的广播多播包。
例如，本申请实施例中，DTIM Beacon包括四条链路的位图控制字段，链路1的位图控制字段为1，表示链路1存在待传输的广播多播包，链路2的位图控制字段为0，表示链路2不存在待传输的广播多播包，链路3的位图控制字段为1，表示链路3存在待传输的广播多播包，链路4的位图控制字段为1，表示链路4存在待传输的广播多播包。
在一些实施例中，第一通信设备通过每条链路发送的Beacon包括计数字段，该计数字段指示Beacon是否为DTIM Beacon。
可选地，若计数字段为0，指示该计数字段所在的Beacon为DTIM Beacon，而计数字段为除0之外的其他数值时，指示该计数字段所在的Beacon不是DTIM Beacon。
例如，该其他数值为1、2、3，或者还可以为其他规定数值，本申请实施例不作限定。
步骤402：第一通信设备通过任一条链路发送DTIM Beacon之后，发送待传输的广播多播包。
步骤403：第二通信设备通过多条链路中的至少一条链路，接收第一通信设备发送的DTIM Beacon。
第一通信设备通过多条链路发送DTIM Beacon，而第二通信设备可以通过多条链路中的至少一条链路，接收第一通信设备发送的DTIM Beacon。
可选地，第二通信设备将多条链路中的至少一条链路设置为唤醒状态，将其他链路设置为睡眠状态，则第二通信设备不仅可以节省资源消耗，而且可以接收在处于唤醒状态的链路中接收第一通信设备发送的DTIM Beacon。
步骤404：第二通信设备基于DTIM Beacon，将至少一条第一链路设置为唤醒状态。
第二通信设备接收到DTIM Beacon后，由于该DTIM Beacon指示存在待传输的广播多播包的第一链路，则第二通信设备可以基于接收的DTIM Beacon确定第一链路，进而将第一链路设置为唤醒状态。
在一些实施例中，该DTIM Beacon包括每条链路的位图控制字段，位图控制字段指示链路是否存在待传输的广播多播包，则第二通信设备根据该位图控制字段可以确定存在待传输的广播多播包的链路。
其中，DTIM Beacon包括的每条链路的位图控制字段与上述步骤401中的位图控制字段类似，在此不再赘述。
步骤405：第二通信设备通过处于唤醒状态的链路，接收第一通信设备发送的广播多播包。
在本申请实施例中，第一通信设备通过多条链路发送广播多播包，且第二通信设备将链路设置为唤醒状态，则通过处于唤醒状态的链路，接收第一通信设备发送的广播多播包。
本申请实施例提供的数据传输方法中，第一通信设备通过任一条链路发送DTIM Beacon之后再发送广播多播包，而且不同链路上的DTIM Beacon对应的TBTT不同，这样可以保证不同链路上发送的DTIM Beacon之间存在一定的间隔。那么，虽然第二通信设备在接收到DTIM Beacon后将DTIM Beacon指示的至少一条第一链路切换为唤醒状态的过程会耗费时长，但是由于第一链路上的DTIM Beacon与已接收到的DTIM Beacon之间存在间隔，相当于为第二通信设备预留了时间，因此第二通信设备能够成功地接收到第一链路上的广播多播包，防止广播多播包丢失。
图7示出了本申请一个示例性实施例提供的数据传输装置的框图，该装置设置在第一通信设备中，第一通信设备与第二通信设备之间具有多条链路，该装置包括：
发送模块701，用于通过多条链路中的每条链路，发送传送数据指示映射信标DTIM Beacon，DTIM Beacon指示至少一条第一链路，第一链路为多条链路中存在待传输的广播多播包的链路；
其中，多条链路中，不同链路上的DTIM Beacon对应的信标预定传送时间TBTT不同。
在一些实施例中，多条链路中每个Beacon对应的TBTT不同；
其中，Beacon包括DTIM Beacon。
在一些实施例中，同一链路上相邻的任两个Beacon对应的TBTT之间的间隔为第一目标间隔，不同链路对应的第一目标间隔不同；
其中，Beacon包括DTIM Beacon。
在一些实施例中，同一链路上相邻的任两个DTIM Beacon对应的TBTT之间的间隔为第二目标间隔，不同链路对应的第二目标间隔不同。
在一些实施例中，多条链路中包括第二链路，多条链路中除第二链路之外的其他链路对应的第二目标间隔是第二链路对应的第二目标间隔的倍数。
在一些实施例中，第二链路为多条链路中链路质量最高的链路。
在一些实施例中，链路质量包括以下至少一项：
无线信号质量；
干扰强度；
负载量。
在一些实施例中，每条链路中，相邻任两个Beacon对应的TBTT之间的间隔相同。
在一些实施例中，每条链路中，相邻的任两个DTIM Beacon对应的TBTT之间的间隔相同。
在一些实施例中，发送模块701，还用于通过任一条链路发送DTIM Beacon之后，发送待传输的广播多播包。
在一些实施例中，DTIM Beacon包括每条链路的位图控制字段，位图控制字段指示链路是否存在待传输的广播多播包。
在一些实施例中，第一通信设备通过每条链路发送的Beacon包括计数字段，计数字段指示Beacon是否为DTIM Beacon。
需要说明的是，上述实施例提供的装置，在实现其功能时，仅以上述各功能模块的划分进行举例说明，实际应用中，可以根据需要而将上述功能分配由不同的功能模块完成，即将设备的内部结构划分成不同的功能模块，以完成以上描述的全部或者部分功能。另外，上述实施例提供的装置与方法实施例属于同一构思，其具体实现过程详见方法实施例，这里不再赘述。
图8示出了本申请一个示例性实施例提供的数据传输装置的框图，该装置设置在第二通信设备中，第二通信设备与第一通信设备之间具有多条链路，该装置包括：
接收模块801，用于通过多条链路中的至少一条链路，接收第一通信设备发送的传送数据指示映射信标DTIM Beacon，DTIM Beacon指示至少一条第一链路，第一链路为多条链路中存在待传输的广播多播包的链路；
其中，多条链路中，不同链路上的DTIM Beacon对应的信标预定传输时间TBTT不同。
在一些实施例中，参见图9，装置还包括：
设置模块802，用于基于DTIM Beacon，将至少一条第一链路设置为唤醒状态；
接收模块801，用于通过处于唤醒状态的链路，接收第一通信设备发送的广播多播包。
在一些实施例中，多条链路中每个Beacon对应的TBTT不同，Beacon包括DTIM Beacon。
在一些实施例中，同一链路上相邻的任两个Beacon对应的TBTT之间的间隔为第一目标间隔，不同链路对应的第一目标间隔不同；
其中，Beacon包括DTIM Beacon。
在一些实施例中，同一链路上相邻的任两个DTIM Beacon对应的TBTT之间的间隔为第二目标间隔，不同链路对应的第二目标间隔不同。
在一些实施例中，多条链路中包括第二链路；
多条链路中除第二链路之外的其他链路对应的第二目标间隔是第二链路对应的第二目标间隔的倍数。
在一些实施例中，第二链路为多条链路中链路质量最高的链路。
在一些实施例中，至少一条链路为链路质量优于目标链路质量的链路。
在一些实施例中，至少一条链路的链路质量优于目标链路质量包括以下至少一项：
至少一条链路的无线信号质量不低于目标信号质量；
至少一条链路的干扰强度不大于目标干扰强度；
至少一条链路的负载不大于目标负载。
在一些实施例中，每条链路中，相邻的任两个DTIM Beacon对应的TBTT之间的间隔相同。
在一些实施例中，每条链路中，相邻任两个Beacon对应的TBTT之间的间隔相同；
其中，Beacon包括DTIM Beacon。
在一些实施例中，DTIM Beacon每条链路的位图控制字段，位图控制字段指示链路是否存在待传输的广播多播包。
在一些实施例中，第一通信设备通过每条链路发送的Beacon包括计数字段，计数字段指示Beacon是否为DTIM Beacon。
需要说明的是，上述实施例提供的装置，在实现其功能时，仅以上述各功能模块的划分进行举例说明，实际应用中，可以根据需要而将上述功能分配由不同的功能模块完成，即将设备的内部结构划分成不同的功能模块，以完成以上描述的全部或者部分功能。另外，上述实施例提供的装置与方法实施例属于同一构思，其具体实现过程详见方法实施例，这里不再赘述。
图10示出了本申请一个示例性实施例提供的通信设备的结构示意图，该通信设备包括：处理器1001、接收器1002、发射器1003、存储器1004和总线1005。
处理器1001包括一个或者一个以上处理核心，处理器1001通过运行软件程序以及模块，从而执行各种功能应用以及信息处理。
在一些实施例中，该处理器1001包括ASIC(Application Specific Integrated Circuit，专用集成电路)，该ASIC用于执行信息处理。
接收器1002和发射器1003可以实现为一个通信组件，该通信组件可以是一块通信芯片。
存储器1004通过总线1005与处理器1001相连。
存储器1004可用于存储至少一个程序代码，处理器1001用于执行该至少一个程序代码，以实现上述方法实施例中的各个步骤。
此外，通信设备可以为终端设备或网络设备。存储器1004可以由任何类型的易失性或非易失性存储设备或者它们的组合实现，易失性或非易失性存储设备包括但不限于：磁盘或光盘，EEPROM(Electrically Erasable Programmable Read Only Memory，电可擦除可编程只读存储器)，EPROM(Erasable Programmable Read Only Memory，可擦除可编程只读存储器)，SRAM(Static Random Access Memory，静态随时存取存储器)，ROM(Read Only Memory，只读存储器)，磁存储器，快闪存储器，可编程只读存储器(Programmable Read Only Memory，PROM)。
在示例性实施例中，还提供了一种计算机可读存储介质，所述可读存储介质中存储有可执行程序代码，所述可执行程序代码由处理器加载并执行以实现上述各个方法实施例提供的由通信设备执行的数据传输方法。
在示例性实施例中，提供了一种芯片，所述芯片包括可编程逻辑电路和/或程序指令，当所述芯片在站点多链路设备或接入点多链路设备上运行时，用于实现如各个方法实施例提供的数据传输方法。
在示例性实施例中，提供了计算机程序产品，当所述计算机程序产品被站点多链路设备或接入点多链路设备的处理器执行时，其用于实现上述各个方法实施例提供的数据传输方法。
本领域普通技术人员可以理解实现上述实施例的全部或部分步骤可以通过硬件来完成， 也可以通过程序来指令相关的硬件完成，所述的程序可以存储于一种计算机可读存储介质中，上述提到的存储介质可以是只读存储器，磁盘或光盘等。
以上所述仅为本申请的可选实施例，并不用以限制本申请，凡在本申请的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本申请的保护范围之内。

Claims (56)

  1. 一种数据传输方法，其特征在于，所述方法由第一通信设备执行，所述第一通信设备与第二通信设备之间具有多条链路，所述方法包括：
    所述第一通信设备通过所述多条链路中的每条链路，发送传送数据指示映射信标DTIM Beacon，所述DTIM Beacon指示至少一条第一链路，所述第一链路为所述多条链路中存在待传输的广播多播包的链路；
    其中，所述多条链路中，不同链路上的DTIM Beacon对应的信标预定传送时间TBTT不同。
  2. 根据权利要求1所述的方法，其特征在于，所述多条链路中每个Beacon对应的TBTT不同；
    其中，所述Beacon包括所述DTIM Beacon。
  3. 根据权利要求1或2所述的方法，其特征在于，同一链路上相邻的任两个Beacon对应的TBTT之间的间隔为第一目标间隔，不同链路对应的所述第一目标间隔不同；
    其中，所述Beacon包括所述DTIM Beacon。
  4. 根据权利要求1至3任一项所述的方法，其特征在于，
    同一链路上相邻的任两个DTIM Beacon对应的TBTT之间的间隔为第二目标间隔，不同链路对应的所述第二目标间隔不同。
  5. 根据权利要求4所述的方法，其特征在于，所述多条链路中包括第二链路，所述多条链路中除所述第二链路之外的其他链路对应的第二目标间隔是所述第二链路对应的第二目标间隔的倍数。
  6. 根据权利要求5所述的方法，其特征在于，所述第二链路为所述多条链路中链路质量最高的链路。
  7. 根据权利要求6所述的方法，其特征在于，所述链路质量包括以下至少一项：
    无线信号质量；
    干扰强度；
    负载量。
  8. 根据权利要求1至7任一项所述的方法，其特征在于，每条链路中，相邻任两个Beacon对应的TBTT之间的间隔相同。
  9. 根据权利要求1至7任一项所述的方法，其特征在于，
    每条链路中，相邻的任两个DTIM Beacon对应的TBTT之间的间隔相同。
  10. 根据权利要求1至9任一项所述的方法，其特征在于，所述方法还包括：
    所述第一通信设备通过任一条链路发送DTIM Beacon之后，发送待传输的广播多播包。
  11. 根据权利要求1至10任一项所述的方法，其特征在于，所述DTIM Beacon包括每条链路的位图控制字段，所述位图控制字段指示所述链路是否存在待传输的广播多播包。
  12. 根据权利要求1至11任一项所述的方法，其特征在于，所述第一通信设备通过每条链路发送的Beacon包括计数字段，所述计数字段指示所述Beacon是否为所述DTIM Beacon。
  13. 一种数据传输方法，其特征在于，所述方法由第二通信设备执行，所述第二通信设备与第一通信设备之间具有多条链路，所述方法包括：
    所述第二通信设备通过所述多条链路中的至少一条链路，接收所述第一通信设备发送的传送数据指示映射信标DTIM Beacon，所述DTIM Beacon指示至少一条第一链路，所述第一链路为所述多条链路中存在待传输的广播多播包的链路；
    其中，所述多条链路中，不同链路上的DTIM Beacon对应的信标预定传输时间TBTT不同。
  14. 根据权利要求13所述的方法，其特征在于，所述方法还包括：
    基于所述DTIM Beacon，将所述至少一条第一链路设置为唤醒状态；
    通过处于唤醒状态的链路，接收所述第一通信设备发送的广播多播包。
  15. 根据权利要求13或14所述的方法，其特征在于，所述多条链路中每个Beacon对应的TBTT不同，所述Beacon包括所述DTIM Beacon。
  16. 根据权利要求13至15任一项所述的方法，其特征在于，同一链路上相邻的任两个Beacon对应的TBTT之间的间隔为第一目标间隔，不同链路对应的所述第一目标间隔不同；
    其中，所述Beacon包括所述DTIM Beacon。
  17. 根据权利要求13至16任一项所述的方法，其特征在于，
    同一链路上相邻的任两个DTIM Beacon对应的TBTT之间的间隔为第二目标间隔，不同链路对应的所述第二目标间隔不同。
  18. 根据权利要求17所述的方法，其特征在于，所述多条链路中包括第二链路；
    所述多条链路中除所述第二链路之外的其他链路对应的第二目标间隔是所述第二链路对应的第二目标间隔的倍数。
  19. 根据权利要求18所述的方法，其特征在于，所述第二链路为所述多条链路中链路质量最高的链路。
  20. 根据权利要求13至19任一项所述的方法，其特征在于，所述至少一条链路为链路质量优于目标链路质量的链路。
  21. 根据权利要求20所述的方法，其特征在于，所述至少一条链路的链路质量优于目标链路质量包括以下至少一项：
    所述至少一条链路的无线信号质量不低于目标信号质量；
    所述至少一条链路的干扰强度不大于目标干扰强度；
    所述至少一条链路的负载不大于目标负载。
  22. 根据权利要求13至21任一项所述的方法，其特征在于，
    每条链路中，相邻的任两个DTIM Beacon对应的TBTT之间的间隔相同。
  23. 根据权利要求13至22任一项所述的方法，其特征在于，每条链路中，相邻任两个Beacon对应的TBTT之间的间隔相同；
    其中，所述Beacon包括所述DTIM Beacon。
  24. 根据权利要求13至23任一项所述的方法，其特征在于，所述DTIM Beacon每条链路的位图控制字段，所述位图控制字段指示所述链路是否存在待传输的广播多播包。
  25. 根据权利要求13至24任一项所述的方法，其特征在于，所述第一通信设备通过每条链路发送的Beacon包括计数字段，所述计数字段指示所述Beacon是否为所述DTIM Beacon。
  26. 一种数据传输装置，其特征在于，所述装置设置在第一通信设备中，所述第一通信设备与第二通信设备之间具有多条链路，所述装置包括：
    发送模块，用于通过所述多条链路中的每条链路，发送传送数据指示映射信标DTIM Beacon，所述DTIM Beacon指示至少一条第一链路，所述第一链路为所述多条链路中存在待传输的广播多播包的链路；
    其中，所述多条链路中，不同链路上的DTIM Beacon对应的信标预定传送时间TBTT不同。
  27. 根据权利要求26所述的装置，其特征在于，所述多条链路中每个Beacon对应的TBTT不同；
    其中，所述Beacon包括所述DTIM Beacon。
  28. 根据权利要求26或27所述的装置，其特征在于，同一链路上相邻的任两个Beacon对应的TBTT之间的间隔为第一目标间隔，不同链路对应的所述第一目标间隔不同；其中，所述Beacon包括所述DTIM Beacon。
  29. 根据权利要求26至28任一项所述的装置，其特征在于，
    同一链路上相邻的任两个DTIM Beacon对应的TBTT之间的间隔为第二目标间隔，不同链路对应的所述第二目标间隔不同。
  30. 根据权利要求29所述的装置，其特征在于，所述多条链路中包括第二链路，所述多条链路中除所述第二链路之外的其他链路对应的第二目标间隔是所述第二链路对应的第二目标间隔的倍数。
  31. 根据权利要求30所述的装置，其特征在于，所述第二链路为所述多条链路中链路质量最高的链路。
  32. 根据权利要求31所述的装置，其特征在于，所述链路质量包括以下至少一项：
    无线信号质量；
    干扰强度；
    负载量。
  33. 根据权利要求26至32任一项所述的装置，其特征在于，每条链路中，相邻任两个Beacon对应的TBTT之间的间隔相同。
  34. 根据权利要求26至32任一项所述的装置，其特征在于，
    每条链路中，相邻的任两个DTIM Beacon对应的TBTT之间的间隔相同。
  35. 根据权利要求26至34任一项所述的装置，其特征在于，所述发送模块，还用于通过任一条链路发送DTIM Beacon之后，发送待传输的广播多播包。
  36. 根据权利要求26至35任一项所述的装置，其特征在于，所述DTIM Beacon包括每条链路的位图控制字段，所述位图控制字段指示所述链路是否存在待传输的广播多播包。
  37. 根据权利要求26至36任一项所述的装置，其特征在于，所述第一通信设备通过每条链路发送的Beacon包括计数字段，所述计数字段指示所述Beacon是否为所述DTIM Beacon。
  38. 一种数据传输装置，其特征在于，所述装置设置在第二通信设备中，所述第二通信设备与第一通信设备之间具有多条链路，所述装置包括：
    接收模块，用于通过所述多条链路中的至少一条链路，接收所述第一通信设备发送的传送数据指示映射信标DTIM Beacon，所述DTIM Beacon指示至少一条第一链路，所述第一链路为所述多条链路中存在待传输的广播多播包的链路；
    其中，所述多条链路中，不同链路上的DTIM Beacon对应的信标预定传输时间TBTT不同。
  39. 根据权利要求38所述的装置，其特征在于，所述装置还包括：
    设置模块，用于基于所述DTIM Beacon，将所述至少一条第一链路设置为唤醒状态；
    所述接收模块，用于通过处于唤醒状态的链路，接收所述第一通信设备发送的广播多播包。
  40. 根据权利要求38或39所述的装置，其特征在于，所述多条链路中每个Beacon对应的TBTT不同，所述Beacon包括所述DTIM Beacon。
  41. 根据权利要求38至40任一项所述的装置，其特征在于，同一链路上相邻的任两个Beacon对应的TBTT之间的间隔为第一目标间隔，不同链路对应的所述第一目标间隔不同；
    其中，所述Beacon包括所述DTIM Beacon。
  42. 根据权利要求38至41任一项所述的装置，其特征在于，
    同一链路上相邻的任两个DTIM Beacon对应的TBTT之间的间隔为第二目标间隔，不同链路对应的所述第二目标间隔不同。
  43. 根据权利要求42所述的装置，其特征在于，所述多条链路中包括第二链路；所述多条链路中除所述第二链路之外的其他链路对应的第二目标间隔是所述第二链路对应的第二目标间隔的倍数。
  44. 根据权利要求43所述的装置，其特征在于，所述第二链路为所述多条链路中链路质量最高的链路。
  45. 根据权利要求38至44任一项所述的装置，其特征在于，所述至少一条链路为链路质量优于目标链路质量的链路。
  46. 根据权利要求45所述的装置，其特征在于，所述至少一条链路的链路质量优于目标链路质量包括以下至少一项：
    所述至少一条链路的无线信号质量不低于目标信号质量；
    所述至少一条链路的干扰强度不大于目标干扰强度；
    所述至少一条链路的负载不大于目标负载。
  47. 根据权利要求38至46任一项所述的装置，其特征在于，
    每条链路中，相邻的任两个DTIM Beacon对应的TBTT之间的间隔相同。
  48. 根据权利要求38至47任一项所述的装置，其特征在于，每条链路中，相邻任两个Beacon对应的TBTT之间的间隔相同；
    其中，所述Beacon包括所述DTIM Beacon。
  49. 根据权利要求38至48任一项所述的装置，其特征在于，所述DTIM Beacon每条链路的位图控制字段，所述位图控制字段指示所述链路是否存在待传输的广播多播包。
  50. 根据权利要求38至49任一项所述的装置，其特征在于，所述第一通信设备通过每条链路发送的Beacon包括计数字段，所述计数字段指示所述Beacon是否为所述DTIM Beacon。
  51. 一种第一通信设备，其特征在于，所述第一通信设备包括：
    处理器；与所述处理器相连的收发器；
    用于存储所述处理器的可执行程序代码的存储器；
    其中，所述处理器被配置为加载并执行所述可执行程序代码以实现如权利要求1-12任一所述的数据传输方法。
  52. 一种第二通信设备，其特征在于，所述第二通信设备包括：
    处理器；与所述处理器相连的收发器；
    用于存储所述处理器的可执行程序代码的存储器；
    其中，所述处理器被配置为加载并执行所述可执行程序代码以实现如权利要求13-25任一所述的数据传输方法。
  53. 一种计算机可读存储介质，其特征在于，所述可读存储介质中存储有可执行程序代码，所述可执行程序代码由处理器加载并执行以实现如权利要求1至25任一所述的数据传输方法。
  54. 一种计算机程序产品，其特征在于，所述计算机程序产品包括计算机指令，所述计算机指令存储在计算机可读存储介质中；第一通信设备或第二通信设备的处理器从所述计算机可读存储介质读取所述计算机指令，并执行所述计算机指令，使得所述第一通信设备执行如权利要求1至12任一所述的数据传输方法，或使得所述第二通信设备执行如权利要求13至25任一所述的数据传输方法。
  55. 一种计算机程序，其特征在于，所述计算机程序由第一通信设备或第二通信设备的处理器执行，以实现如权利要求1至25任一所述的数据传输方法。
  56. 一种芯片，其特征在于，所述芯片包括可编程逻辑电路和/或程序指令，当所述芯片在第一通信设备或第二通信设备上运行时，用于实现如权利要求1至25任一所述的数据传输方法。
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Citations (3)

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CN101155101A (zh) * 2006-09-30 2008-04-02 华为技术有限公司 无线局域网网状网络信标信息冲突避免的方法、设备及系统
CN107333307A (zh) * 2016-04-29 2017-11-07 华为技术有限公司 一种无线局域网中切换接入点的方法及设备
US20210212156A1 (en) * 2020-01-04 2021-07-08 Nxp Usa, Inc. Apparatus and method for enabling and disabling links in multi-link communication systems

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101155101A (zh) * 2006-09-30 2008-04-02 华为技术有限公司 无线局域网网状网络信标信息冲突避免的方法、设备及系统
CN107333307A (zh) * 2016-04-29 2017-11-07 华为技术有限公司 一种无线局域网中切换接入点的方法及设备
US20210212156A1 (en) * 2020-01-04 2021-07-08 Nxp Usa, Inc. Apparatus and method for enabling and disabling links in multi-link communication systems

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