WO2023029009A1 - 传输方法及装置 - Google Patents
传输方法及装置 Download PDFInfo
- Publication number
- WO2023029009A1 WO2023029009A1 PCT/CN2021/116547 CN2021116547W WO2023029009A1 WO 2023029009 A1 WO2023029009 A1 WO 2023029009A1 CN 2021116547 W CN2021116547 W CN 2021116547W WO 2023029009 A1 WO2023029009 A1 WO 2023029009A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- link
- beacon
- tbtt
- interval
- frame
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
Links
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. Transmission Power Control [TPC] or power classes
- H04W52/02—Power saving arrangements
Definitions
- the present application relates to the communication field, and in particular to a transmission method and device.
- a multi-link device (Multi-Link Device, MLD) is a device that supports data transmission on multiple links at the same time.
- the communication ends of the multi-link device can be the station (Station, STA) MLD and the access Point (Access Point, AP) MLD.
- STA MLD and AP MLD can only perform the connection process on the first link, and realize the establishment of multiple links and determine the connection parameters on each link through the information exchanged during the connection process on the first link , where the connection parameter may include a delivery traffic indication map (Delivery Traffic indication map, DTIM) counter.
- DTIM Delivery Traffic indication map
- the DTIM counters in the next beacon (beacon) closest to the current moment in other links are directly determined, and then transmitted in the radio frame.
- the embodiment of the present application provides a transmission method and device to solve the problem that the STA MLD cannot correctly determine the TBTT corresponding to the DTIM Beacon on other links.
- the embodiment of the present application provides a transmission method applied to a first device, at least two links are established between the first device and the second device, and the at least two links include the first link and second link, including:
- the first device receives the first frame sent by the second device on the first link, the first frame includes first interval information, and the first interval information is used to indicate that the second a time interval for the device to send a Beacon message through the second link;
- the first device receives a first remaining interval number sent by the second device on the second link;
- the first device determines, according to the first interval information and/or the first remaining interval number, that the second device transmits and transmits data on the second link to indicate a target beacon for mapping a DTIM Beacon message Send time TBTT.
- the embodiment of the present application provides a transmission method applied to a second device, at least two links are established between the second device and the first device, and the at least two links include the first link and second link, including:
- the second device sends a first frame to the first device on the first link, the first frame includes first interval information, and the first interval information is used to indicate that the second device The time interval for sending the Beacon message through the second link;
- the first interval information and/or the first remaining interval number are used to determine the TBTT for the second device to transmit a DTIM Beacon on the second link.
- the embodiment of the present application provides a transmission device, which is applied to the first device, and at least two links are established between the first device and the second device, and the at least two links include the first link and second link, including:
- a receiving module configured for the first device to receive a first frame sent by the second device on the first link, where the first frame includes first interval information, and the first interval information is used for Instructing the second device to send a time interval for a Beacon message through the second link;
- the receiving module is further configured for the first device to receive the first remaining interval number sent by the second device on the second link;
- a determining module configured for the first device to determine, according to the first interval information and/or the first remaining interval number, the TBTT for the second device to transmit a DTIM Beacon on the second link.
- an embodiment of the present application provides a transmission device, which is applied to a second device, at least two links are established between the second device and the first device, and the at least two links include the first link and second link, including:
- a sending module configured for the second device to send a first frame to the first device on the first link, where the first frame includes first interval information, and the first interval information is used to indicate The time interval for the second device to send a Beacon message through the second link;
- the sending module is further configured for the second device to send a first remaining interval number to the first device on the second link;
- the first interval information and/or the first remaining interval number are used to determine the TBTT for the second device to transmit a DTIM Beacon on the second link.
- the embodiment of the present application provides a transmission device, including: a transceiver, a processor, and a memory;
- the memory stores computer-executable instructions
- the processor executes the computer-executed instructions stored in the memory, so that the processor executes the transmission method as described in the first aspect above;
- the processor includes an application specific integrated circuit ASIC.
- the embodiment of the present application provides a transmission device, including: a transceiver, a processor, and a memory;
- the memory stores computer-executable instructions
- the processor executes the computer-executed instructions stored in the memory, so that the processor executes the transmission method as described in the second aspect above;
- the processor includes an application specific integrated circuit ASIC.
- the embodiment of the present application provides a computer-readable storage medium, where computer-executable instructions are stored in the computer-readable storage medium, and when the computer-executable instructions are executed by a processor, they are used to implement the above first aspect or The transmission method described in the second aspect.
- an embodiment of the present application provides a computer program product, including a computer program, wherein, when the computer program is executed by a processor, the transmission method described in the first aspect or the second aspect is implemented.
- the embodiment of the present application provides a chip, including a processing module and a communication interface, where the processing module is used to implement the transmission method described in the first or second aspect above.
- the embodiment of the present application provides a transmission method and device, the method includes: the first device receives the first frame sent by the second device on the first link, the first frame includes the first interval information, and the first interval information uses The time interval for instructing the second device to send the Beacon message through the second link.
- the first device receives the first remaining interval number sent by the second device on the second link.
- the first device determines the TBTT corresponding to the second device transmitting the DTIM Beacon on the second link according to the first interval information and/or the first remaining interval number.
- the first device By receiving the first remaining interval number sent by the second device on the second link after the first device receives the first frame, it can ensure that the correct value of the DTIM counter is obtained, and then according to the first remaining interval number and The first interval information included in the first frame determines the TBTT corresponding to the DTIM Beacon, thereby effectively ensuring that the first device can correctly determine the TBTT corresponding to the DTIM Beacon on the second link.
- FIG. 1 is a schematic diagram of a communication scenario provided by an embodiment of the present application.
- FIG. 2 is a schematic diagram of links between multi-link devices provided in an embodiment of the present application.
- FIG. 3 is a first implementation schematic diagram of sending a Beacon message provided by the embodiment of the present application.
- FIG. 4 is a second implementation schematic diagram of sending a Beacon message provided by the embodiment of the present application.
- FIG. 5 is a schematic diagram of parameters of an AP provided in an embodiment of the present application.
- FIG. 6 is a schematic diagram of an implementation of establishing a multi-link connection provided by an embodiment of the present application.
- FIG. 7 is a first implementation schematic diagram of the connection response frame provided by the embodiment of the present application.
- FIG. 8 is a second schematic diagram of the realization of the connection response frame provided by the embodiment of the present application.
- FIG. 9 is a flowchart of a transmission method provided by an embodiment of the present application.
- FIG. 10 is a first implementation schematic diagram of determining DTIM information provided by the embodiment of the present application.
- FIG. 11 is a second implementation schematic diagram of determining DTIM information provided by the embodiment of the present application.
- FIG. 12 is a third schematic diagram of the implementation of determining DTIM information provided by the embodiment of the present application.
- FIG. 13 is a fourth implementation schematic diagram of determining DTIM information provided by the embodiment of the present application.
- FIG. 14 is a schematic diagram 5 for realizing the determination of DTIM information provided by the embodiment of the present application.
- FIG. 15 is a sixth schematic diagram of the implementation of determining DTIM information provided by the embodiment of the present application.
- FIG. 16 is the second flowchart of the transmission method provided by the embodiment of the present application.
- FIG. 17 is a first structural schematic diagram of a transmission device provided by an embodiment of the present application.
- FIG. 18 is a second structural schematic diagram of the transmission device provided by the embodiment of the present application.
- FIG. 19 is a first schematic structural diagram of a transmission device provided by an embodiment of the present application.
- FIG. 20 is a second schematic structural diagram of a transmission device provided by an embodiment of the present application.
- 802.11be is the next-generation WiFi standard, 802.11be network, also known as Extremely High Throughput (EHT, very high throughput) network, through a series of system features and various mechanism enhancements to achieve extremely high throughput, 802.11be is A new WLAN standard proposed after WiFi6 (802.11ax).
- EHT Extremely High Throughput
- one end is an AP device, and the other end is an STA device.
- the communication scene can be understood in conjunction with FIG. 1 , which is a schematic diagram of a communication scene provided by an embodiment of the present application. Referring to FIG. 1 , in this communication scenario, one end is an AP device, and the other end is an STA device.
- AP can be the access point for mobile users to enter the wired network. It is mainly deployed in homes, buildings, and campuses. The typical coverage radius is tens of meters to hundreds of meters. Of course, it can also be deployed outdoors.
- the AP is equivalent to a bridge connecting the wired network and the wireless network. Its main function is to connect various wireless network clients together, and then connect the wireless network to the Ethernet.
- the AP may be a terminal device or a network device with a wireless-fidelity (wreless-fidelity, WiFi) chip.
- the AP can be a device supporting the 802.11ax standard.
- the AP may also be a device supporting multiple wireless local area networks (wireless local area networks, WLAN) standards such as 802.11ac, 802.11n, 802.11g, 802.11b, and 802.11a.
- the STA may be a wireless communication chip, a wireless sensor or a wireless communication terminal.
- the STA can support the 802.11ax standard.
- STA can also support multiple WLAN standards such as 802.11ac, 802.11n, 802.11g, 802.11b, and 802.11a.
- the specific implementation manners of the AP device and the STA device can be selected according to actual requirements, which is not limited in this embodiment, as long as the AP device can be used as an access point and the STA device can be used as a station.
- 802.11be the function that can support 802.11 multiple links (Multiple Links) is defined.
- STA MLD site multi-link device
- AP MLD Access Point Multilink Device
- a multi-link device (Multi-Link Device, MLD) is a device that supports data transmission on multiple links at the same time. For example, it can communicate in the 2.4GHz, 5GHz and 60GHz frequency bands at the same time. Even when the number of antennas is limited, multi-link devices can also switch between different frequency bands, so as to select the best frequency band and ensure its communication quality. .
- MLD Multi-Link Device
- the STA MLD and AP MLD that have established multi-links can take advantage of multi-links to send and receive data on multiple links to achieve high throughput/low latency and other advantages.
- the multi-link device may include one or more APs, and if the multi-link device is an STA device, then the multi-link device may include one or more STAs.
- the multi-link device is essentially a device.
- the AP MLD described above can include one or more APs, and the STA MLD can include one or more APs.
- Multiple STAs, which can be understood as multi-link devices can include one or more virtual entities, where each logical entity performs data transmission with the other end of communication through a link, and a link is a wireless resource for transmitting data .
- FIG. 2 is a schematic diagram of links between the multilink devices provided in the embodiment of the present application.
- AP multi-link equipment currently includes AP1, AP2, ..., APn
- STA multi-link equipment includes STA1, STA2, ..., STAn
- AP1 and STA1 establish a Link (link) 1
- link 2 is established between AP2 and STA2
- ..., link n is established between APn and STAn
- each AP can work in different frequency bands
- each STA can work in different frequency bands, correspondingly, each established link is also a link in the corresponding frequency band.
- the specific number of APs included in the AP multi-link device and the specific number of STAs included in the STA multi-link device can be selected according to actual needs, which is not limited in this embodiment .
- the AP sends the Beacon message to synchronize the time of the AP and one or more STAs on the entire Basic Service Set (BSS) network.
- BSS Basic Service Set
- the Beacon sent by the AP The message has a time stamp (TimeStamp).
- the STA After receiving this field, the STA can synchronize its own time with the AP time.
- the BSS refers to the range covered by an AP, and STAs can communicate with each other within the service area of a BSS.
- FIG. 3 is an implementation schematic diagram 1 of sending the Beacon message provided by the embodiment of the present application.
- the AP expects to send Beacon packets at each TBTT (Targeted Beacon Transmit Time, target Beacon transmission time).
- TBTT Total Beacon Transmit Time, target Beacon transmission time.
- the time for the AP to send Beacon packets may lag behind the TBTT .
- the specific implementation of the Beacon Interval for the AP to send the Beacon message can be selected according to the requirements, and this embodiment does not limit it.
- the STA will allow the low power consumption (Power Save) state, and in the low power consumption state, the STA will be in the sleep mode, so when the AP buffers the broadcast to be sent to the STA more When broadcasting packets, the AP needs a mechanism to notify the STA that it has buffered broadcast and multicast packets. This mechanism is implemented through the DTIM Beacon mechanism of the AP in 802.11.
- the AP will initially define a DTIM period (Period).
- This DTIM Period means that every few Beacon Intervals, the AP will carry the indication information of whether there is a cached broadcast multicast packet in the Beacon report sent at this time point.
- the DTIM counter (count) carried in the Beacon message is used to count down until the next DTIM arrives. It can be understood that the DTIM count is used to indicate how many Beacon Intervals are left before the DTIM Beacon is sent.
- FIG. 4 is an implementation schematic diagram 2 of sending a Beacon packet provided by the embodiment of the present application.
- a DTIM Beacon is about to be sent;
- the buffered broadcast and multicast data will be transmitted after the DTIM Beacon. If there are multiple buffer frames, they will be transmitted sequentially.
- DTIM Period can be collectively referred to as DTIM information.
- FIG. 6 is a schematic diagram of an implementation of establishing a multi-link connection provided by an embodiment of the present application.
- Non-AP MLD is a multi-link terminal in a network connected to a multi-link network access point, which can be understood as the currently introduced STA MLD.
- the STA MLD and AP MLD only exchange information through the two packets of Association Request (connection request) and Association Response (connection response) on the 2.4GHz link
- the STA MLD and AP Three different links are established between the MLDs, which are link 1 on the frequency band 2.4GHz, link 2 on the frequency band 5GHz, and link 3 on the frequency band 6GHz shown in FIG. 6 .
- the link parameters on Link2/Link3, including Beacon Interval, DTIM Period, and DTIM Count are all carried in the interactive packet when establishing a connection on Link1.
- FIG. 7 is a first implementation schematic diagram of the connection response frame provided by the embodiment of the present application.
- STA MLD establishes multi-links on link1, assuming that two links, link1 and link2, are established, where link1 is the link between AP1 and STA1 in Figure 7, and link2 is the link in Figure 7 link between AP2 and STA2.
- STA MLD and AP MLD exchange packets containing link1/link2 link information on link1, by default, STA MLD is in the awake/active state on link1, in Doze state on link2, and link2 By default, it is not necessary to monitor the Beacon on link2 on link2.
- the Associate Response (Associate Response) frame sent by AP MLD on link1 carries the information of AP2 of AP MLD on link2, including DTIM Period/DTIM Count, where DTIM The period can be negotiated, but for different Beacons, the DTIM count may be different, so it is necessary to determine which Beacon's DTIM count is included in the connection response frame.
- determining the DTIM Count of AP2 included in the connection response frame for example, it may be to obtain the DTIM Count carried in the Beacon closest to the AP MLD on link2 at this time, so as to obtain the connection Information included in the response frame.
- the DTIM Count information on other links included in the connection response frame will appear.
- the DTIM Count information on other links cannot be correctly reflected at this time.
- FIG. 8 is a second implementation schematic diagram of the connection response frame provided by the embodiment of the present application.
- link1 is the link between AP1 and STA1 in Figure 8
- link2 is the link in Figure 8.
- ACK Acknowledge character, confirmation character
- the STA MLD is in the Doze state by default on Link2. If the STA MLD does not listen to the Beacon on Link2 on Link2 for a long time, it will cause STA MLD to respond to the Beacon on Link2. DTIM information will be in the wrong state for a long time, which will cause data transmission failure.
- a specific example can be used for illustration in conjunction with Figure 8. For example, after the current STA MLD receives the connection response frame, it determines that the DTIM period on link2 is 2 according to the DTIM information of link1 included in it, and determines that the next link on link2 The DTIM counter carried in the Beacon message is 1, then the STA MLD will determine that there is one Beacon interval and the AP will send a DTIM Beacon on link2.
- the Beacon message closest to this time point on Link2 is the message indicated by 802 in Figure 8, and STA MLD will consider the connection response
- the information in the frame is determined according to the Beacon message indicated by the 802, because the STA MLD determines from the connection response frame that there is one Beacon interval before the AP sends the DTIM Beacon on link2, so the current STA MLD according to the connection response frame, It will be determined that the message indicated by 803 in Figure 8 is a DTIM Beacon message, but in fact the message indicated by 802 is the real DTIM Beacon message, and then by analogy, it will lead to STA MLD for a long time The determination of DTIM information on Link2 is in the wrong state.
- the root cause of the above problem is that the time points of the connection response frames sent by the Beacon on other links and the AP MLD on this link are very close, so that the next most recent Beacon report on which the connection response frame is actually based The Beacon message and the next nearest Beacon message based on which the STA MLD considers the Connection Response frame are not the same Beacon message, so the above-mentioned error will occur.
- this application proposes the following technical idea: After the STA MLD receives the connection response frame, it can receive the Beacon on other links, so as to obtain the correct DTIM count from the received Beacon, so as to Avoid the problem that STA MLD will be in the wrong state for a long time for the DTIM information on Link2, thereby effectively improving the correctness of data transmission.
- the current embodiment can be applied to the first device.
- a relationship between the first device and the second device is established.
- At least two links may include a first link and a second link, wherein, for example, the first device may be the STA MLD described above, and the second device may be the AP MLD described above; Or, for example, the first device may be the AP MLD described above, and the second device may be the STA MLD described above.
- This embodiment does not limit the specific implementation of the first device and the second device, and the first device and the The specific number of links between the second devices is also not limited, and can be selected and expanded according to actual needs.
- FIG. 9 is a flowchart of the transmission method provided by the embodiment of the present application.
- the method includes:
- the first device receives the first frame sent by the second device on the first link, the first frame includes first interval information, and the first interval information is used to instruct the second device to send a beacon Beacon through the second link The time interval of the message.
- the first device may be an STA multi-link device
- the second device may be an AP multi-link device
- the first link may be one of multiple links between the first device and the second device.
- STA MLD and AP MLD are only allowed to perform the connection process on any link.
- the current first link is used to execute The link of the connection process.
- the first device may receive the first frame sent by the second device on the first link, the first frame may be, for example, the connection response frame introduced above, and the first frame includes the first interval information, the first interval information It is used to indicate the time interval for the second device to send Beacon packets through the second link. It can be understood that the current first interval information is the Beacon interval for the AP multi-link device to send Beacon packets on the second link. It has been introduced in the above embodiments, and will not be repeated here.
- the first device receives the first remaining interval number sent by the second device on the second link.
- the first device may receive the first remaining interval number sent by the second device on the second link, where the first remaining interval number may be, for example, the value of the DTIM counter introduced above.
- the first device may receive the Beacon packet sent by the second device on the second link, and then obtain the DTIM counter carried in the Beacon, so as to obtain the first remaining interval number.
- the number of remaining intervals is still included in the first frame, but it can be determined based on the above introduction that the number of remaining intervals included in the first frame may be incorrect, so the current first device can The Beacon message sent by the second device is received on the road, so as to ensure that the correct number of first remaining intervals is obtained.
- the first device determines the TBTT for the second device to transmit the DTIM Beacon on the second link according to the first interval information and/or the first remaining interval number.
- the first remaining interval number is used to indicate how many Beacon intervals are left before the DTIM Beacon message is sent, and the first interval information can be Indicates the length of the Beacon interval, so the first device can determine the TBTT for the second device to transmit the DTIM Beacon on the second link according to the first interval information and/or the first remaining interval number.
- the first interval information may be carried in the first frame.
- the Beacon packet received by the first device described above on the second link may also include, for example, the first interval information, so the first interval information in this embodiment may also be It is obtained from the Beacon message, that is to say, in this embodiment, the DTIM information of the second link can be determined jointly based on the first frame and the Beacon message received on the second link, or only based on the The Beacon message received on the second link can also determine the DTIM information of the second link.
- the specific determination method of the DTIM information can be selected according to actual needs, which is not limited in this embodiment.
- the DTIM Beacon can indicate whether there is currently a broadcast multicast packet sent through the link.
- the specific implementation method can refer to the introduction of the above embodiment, and will not be repeated here.
- the transmission method provided by the embodiment of the present application includes: the first device receives the first frame sent by the second device on the first link, the first frame includes the first interval information, and the first interval information is used to indicate the second device Time interval for sending Beacon packets through the second link.
- the first device receives the first remaining interval number sent by the second device on the second link.
- the first device determines the TBTT for the second device to transmit the DTIM Beacon on the second link according to the first interval information and/or the first remaining interval number.
- the first device By receiving the first remaining interval number sent by the second device on the second link after the first device receives the first frame, it can ensure that the correct value of the DTIM counter is obtained, and then according to the first remaining interval number and The first interval information included in the first frame determines the TBTT corresponding to the DTIM Beacon, thereby effectively ensuring that the first device can correctly determine the TBTT corresponding to the DTIM Beacon on the second link.
- FIG. 10 is a first implementation schematic diagram of determining DTIM information provided by the embodiment of the present application.
- the first device may be a STA MLD device
- the second device may be an AP MLD device.
- the current STA MLD performs multi-link establishment on the first link.
- the first link and the second link are two links, where the first link is the link between AP1 and STA1 in Figure 10, and the second link is the link between AP2 and STA2 in Figure 10 .
- the STA MLD device can receive the first frame sent by the AP MLD device on the first link, that is, the connection response frame shown in FIG. 10. It can be understood that the first interval information is included in the connection response frame, The first interval information is actually the Beacon interval on the second link, and the DTIM counter is also included in the connection response frame.
- the STA MLD device can receive the Beacon message sent by the AP MLD device on the second link, and obtain the first remaining interval number from the Beacon message, so that the correct remaining interval number can be obtained by itself, based on It can be determined from the above introduction that after the STA MLD has exchanged data packets on the first link, it is in a sleep state on the remaining links.
- the STA MLD after the STA MLD has exchanged data packets on the first link, Be in sleep state on the second link, so in the present embodiment STA MLD needs to receive the Beacon message that AP MLD equipment sends on the second link, so just need the first equipment to be placed on the second link Awake or activate state, so as to receive Beacon messages on the second link, for example, the first device can determine the TBTT information on the second link according to the connection response frame, so that the TBTT on the second link is set to wake up or active state, so as to receive the Beacon packet on the second link.
- the first device may, for example, determine the first moment at which the first Beacon packet is received on the second link according to the first interval information; Receive the first Beacon message sent by the second device, wherein the first Beacon message includes the first remaining interval number, and whether the first device is awake or active on the second link at the first moment status.
- the first Beacon packet can be a Beacon packet whose reception time is after the moment when the first device receives the first frame, that is,
- the first Beacon message in this embodiment may be any Beacon message sent by the second device on the second link after the first device receives the connection response frame, which is not limited in this embodiment.
- the STA MLD after the STA MLD receives the connection response frame, for example, it can determine the Beacon interval on the second link according to the connection response frame, and then according to the Beacon interval, it can determine that the AP MLD is in the second link. Each TBTT of the Beacon message is sent on the link, so the first moment at which the first Beacon message is received on the second link can be determined.
- the first Beacon message can be, for example, the Beacon message indicated by 1001 in FIG. 10, and the first moment corresponding to the Beacon message is TBTT1 shown in FIG. 10;
- the first moment corresponding to the Beacon message is TBTT2 described in Figure 10.
- the specific implementation method of the first Beacon message can be selected according to actual needs , after the STA MLD receives the connection response frame, the Beacon message sent by the AP MLD on the second link can be used as the first Beacon message in this embodiment.
- the STA MLD can be in the wake-up or active state on the second link at the time point corresponding to TBTT1, for example, to receive the Beacon message 1001 sent by the AP MLD on the second link, and from the Beacon message indicated by 1001
- the correct DTIM counter on the second link is obtained from the message, so as to obtain the correct number of first remaining intervals.
- the first Beacon packet may also be the Beacon packet indicated by 1002 in FIG. 10 , and its implementation is similar, and details are not repeated here.
- FIG. 11 is a second implementation diagram of determining DTIM information provided by the embodiment of this application
- FIG. 12 is a third implementation diagram of determining DTIM information provided by this embodiment of the application.
- the STA MLD can obtain the next TBTT (such as TBTT1 in Figure 11 ) closest to the current moment on the second link, and then at this time point If the Beacon message is received correctly on the TBTT, then there is no need to receive the Beacon message on the second link. See Figure 11.
- the STA MLD corresponds to the time point of TBTT1 at the After receiving the Beacon message on the second link, the STA MLD is in sleep state on the second link.
- the next nearest TBTT (TBTT2 in Figure 10 for example) can be obtained, and then the Beacon message is received at this point in time, and so on until the Beacon message is correctly received in the TBTT
- the correct and effective DTIM counter on the second link can be guaranteed to be obtained.
- each TBTT on the second link receives the Beacon message
- the STA MLD in Figure 12 TBTT1 wakes up to receive the Beacon message indicated by 1201 on the second link
- the STA MLD wakes up at TBTT2 in Figure 12 to receive the Beacon message indicated by 1202 on the second link
- the STA MLD in TBTT3 in FIG. 12 wakes up, so as to receive the Beacon message indicated by 1203 on the second link, and so on, so as to ensure that the STA MLD can obtain the correct and valid DTIM counter on the second link.
- the STA MLD can also receive a Beacon message on the second link every preset number of Beacon intervals, for example Referring to Figure 13, currently there are TBTT1, TBTT2, TBTT3, TBTT4, TBTT5, TBTT6, ... in chronological order, assuming that Beacon messages are received on the second link every 2 Beacon messages, as shown in the figure
- the STA MLD can wake up on the second link at the time point of TBTT1 to receive the Beacon packet indicated by 1302, and then the STA MLD can wake up on the second link at the time point of TBTT3 to perform the Beacon message indicated by 1303.
- the STA MLD wakes up on the second link at TBTT5 time point to receive the Beacon message, and so on, which can also ensure that the correct and effective DTIM counter on the second link is obtained.
- the second device After determining the first remaining interval number and the first interval information, it can be determined that the second device transmits the TBTT corresponding to the DTIM Beacon on the second link. After the first device receives the first frame sent by the second device, it wakes up at the corresponding TBTT time on the second link, so as to receive the first remaining interval number sent by the second device on the second link, so that it can effectively Ensure that the first device can correctly determine the TBTT corresponding to the DTIM Beacon on the second link.
- the awake (awake) state described above may also be an active (active) state.
- FIG. 14 is an implementation schematic diagram of determining DTIM information provided in the embodiment of the present application (5).
- the first frame further includes the second remaining interval number and/or first indication information of the second link, where the first indication information is used to indicate that the second remaining interval number is the first The number of remaining intervals included in the Beacon message sent by the second device at the first target sending time on the second link.
- the second remaining interval quantity included in the first frame can be used to determine the DTIM information of the second link, but an additional indication information needs to be carried in the first frame, and the indication information indicates that the currently carried
- the DTIM counter on the second link is in the Beacon message sent by which TBTT of the second link, wherein the first indication information may be, for example, the value of the first target beacon transmission time (TBTT); or, the second link
- the indication information may also be an offset of the value of the first target transmission time (TBTT).
- the current STA MLD performs multi-link establishment on the first link, assuming that two links, the first link and the second link, are established, wherein the first link is as shown in Figure 14
- the link between AP1 and STA1 in the second link is the link between AP2 and STA2 in FIG. 14 .
- the connection response frame when the AP MLD sends a connection response frame on the first link, the nearest next Beacon message on the corresponding second link is the Beacon message indicated by 1401 in Figure 14, which can be determined by referring to Figure 14,
- the information may be, for example, the value of TBTT2, or the offset of TBTT2, so the first indication information may indicate that the DTIM counter included in the current connection response frame is the DTIM counter carried in the Beacon message corresponding to TBTT2 .
- the STA MLD when the STA MLD processes the connection response frame, although the Beacon message at the corresponding TBTT2 time on the second link has already been sent, the STA MLD still uses the additional first indication information carried in the connection response frame. It can be determined that the DTIM counter of this connection response frame is the Beacon message at the TBTT2 time on the corresponding second link, so the STA MLD can still have Correct DTIM information on the second link.
- the first device may determine the second The moment when the device transmits a DTIM Beacon message on the second link, because the first indication information specifically indicates that the second remaining interval number is determined according to the Beacon on the second link, it can be guaranteed that the first device can obtain The correct DTIM information on the second link can effectively ensure that the first device can correctly determine the TBTT corresponding to the DTIM Beacon on the second link.
- AP MLD can, for example, select the sending time point of the connection response frame, so that this time point is different from other link There may be a certain time threshold distance between the nearest Beacon packets on the link, and the connection response frame still carries the DTIM Count of the nearest Beacon packets on other links. Because the sending time point of the connection response frame is limited, the situation that the sending time of the connection response frame is very close to the sending time of the next nearest Beacon message on the second link is avoided, thereby avoiding DTIM information errors .
- the time interval between the sending time of the first frame and the second TBTT of the second Beacon message on the second link is greater than or equal to the preset duration, and the second Beaocn message is the sending time of the TBTT in the first frame
- the Beacon message that is later and the sending time of the first frame is the latest;
- the first frame further includes the third remaining interval quantity carried in the second Beacon packet.
- the sending time of the connection response frame when determining the sending time of the connection response frame, the latest second Beacon message after that can be obtained on the second link, so that the sending time of the connection response frame is equal to the second TBTT of the second Beacon message
- the time interval between them is greater than or equal to the preset duration, and the specific implementation manner of the preset duration can be selected according to actual requirements, which is not limited in this embodiment.
- FIG. 15 is a sixth implementation diagram of determining DTIM information provided by the embodiment of the present application.
- AP MLD when AP MLD sends a connection response frame on the first link, it can select a sending time point, so that this time point is staggered by a certain time with the latest Beacon message on the second link, and What the connection response frame carries is the DTIM counter in the latest Beacon message on the second link determined above, that is, the DTIM counter in the Beacon message 1501 corresponding to TBTT3 in FIG. 15 .
- the sending time point of the next Beacon message on the second link can be determined first, for example, it can be TBTT2 in FIG. 15 , assuming that the current According to the Beacon message corresponding to TBTT2, the sending time of the connection response frame is determined, but based on the above content, it can be determined that the sending time point between TBTT2 and the connection response frame is very close, that is to say, the time point between TBTT2 and the connection response frame is very close.
- the time interval between the sending time points is less than the preset duration, so the currently determined sending time of the connection response frame is unavailable.
- the second target transmission time TBTT2 of the Beacon message 1501 and the transmission time of the connection response frame can satisfy the relationship introduced above, that is to say, the TBTT3 of the Beacon message 1501 is after the transmission time of the connection response frame.
- the time interval between TBTT3 of the Beacon message 1501 and the sending time of the connection response frame is greater than or equal to the preset duration, so the third remaining time in the connection response frame can be determined according to the DTIM counter carried in the Beacon message 1501 corresponding to TBTT3. number of intervals, and send the connection response frame at the determined sending time point.
- the STA MLD receives and processes the connection response frame, the next Beacon packet corresponding to the second link is also the Beacon packet 1501 corresponding to TBTT3, and the DTIM counter carried in it is 0, so the STA MLD can be guaranteed It is possible to have correct DTIM information on the second link.
- the first device receives the data packet sent by the second device on the second link, wherein the TBTT first device transmitting the DTIM Beacon message is in an awake state on the second link.
- the first device in this embodiment can correctly receive data based on the determined correct DTIM information.
- the transmission method provided by the embodiment of this application can be selected through the selection of an appropriate scheme during the multi-link establishment process of the STA MLD and the AP MLD on a certain link, or after the multi-link establishment is completed. This enables the STA MLD to accurately obtain the DTIM information of the AP MLD on all links.
- the programs may include:
- STA MLD After STA MLD and AP MLD complete multi-link establishment on a certain link, STA MLD actively receives corresponding Beacon messages on other links; and/or,
- the AP MLD carries Beacon information (first indication information) corresponding to the DTIM counter on each link; and/or,
- the AP MLD selects an appropriate time point to send the connection response frame, so that the time interval between the sending time of the connection response frame and the sending time of the Beacon message on the second link is greater than or equal to the preset duration.
- the 802.11be STA MLD can accurately obtain the DTIM information of the AP MLD on all links. After the 802.11be STA MLD obtains the correct DTIM information on all links, it can make the STA The MLD is correctly synchronized with the AP MLD on each link.
- FIG. 16 is the second flowchart of the transmission method provided by the embodiment of the present application.
- the second device sends a first frame to the first device on the first link, the first frame includes first interval information, and the first interval information is used to instruct the second device to send the Beacon message through the second link time interval.
- the second device sends the first remaining interval number to the first device on the second link.
- the first interval information and/or the first remaining interval number are used to determine the TBTT for the second device to transmit the DTIM Beacon on the second link.
- the second device in this embodiment may send a Beacon message to the first device on the second link, the Beacon message may include the first remaining interval number, and the Beacon message may also carry the
- the implementation of the first interval information is similar to that described in the foregoing embodiments.
- the transmission method provided by the embodiment of the present application includes: the second device sends a first frame to the first device on the first link, the first frame includes first interval information, and the first interval information is used to instruct the second device to pass Interval for sending Beacon packets on the second link.
- the second device sends the first remaining interval number to the first device on the second link, wherein the first interval information and/or the first remaining interval number are used to determine the second device transmits the DTIM Beacon on the second link TBTT.
- the second device sends the first frame to the first device, the first frame includes the first interval information, and the second device sends the first remaining interval time to the first device on the second link, so that the first device can After receiving the correct first remaining interval time, determine the TBTT corresponding to the DTIM Beacon according to the first remaining interval number and the first interval information included in the first frame, so as to effectively ensure that the first device can correctly determine the second link TBTT corresponding to the DTIM Beacon on the device.
- FIG. 17 is a first structural schematic diagram of a transmission device provided by an embodiment of the present application.
- the transmission device 170 may include a receiving module 1701 and a determining module 1702, wherein,
- a receiving module 1701 configured for the first device to receive a first frame sent by the second device on the first link, where the first frame includes first interval information, and the first interval information uses A time interval for instructing the second device to send a Beacon message through the second link;
- the receiving module 1701 is further configured for the first device to receive the first remaining interval number sent by the second device on the second link;
- a determining module 1702 configured for the first device to determine, according to the first interval information and/or the first remaining interval number, a TBTT for the second device to transmit a DTIM Beacon on the second link.
- the receiving module 1701 is specifically configured to:
- the first device determines, according to the first interval information, a first moment at which the first Beacon packet is received on the second link;
- the first device receives a first Beacon packet sent by the second device on the second link at the first moment, and the first Beacon packet includes the first remaining interval number, Wherein, the first device is in an awake state on the second link at the first moment.
- the first frame further includes the second remaining interval number of the second link and/or first indication information, and the first indication information is used to indicate that the second The remaining number of intervals is the remaining number of intervals included in the Beacon packet sent by the second device on the second link in the first TBTT.
- the determining module 1702 is also configured to:
- the first device After the first device receives the first frame sent by the second device on the first link, according to the first interval information, the second remaining interval number, and the first indication information, at least one of them, and determine the TBTT of the DTIM Beacon message transmitted by the second device on the second link.
- the first indication information is the value of the first TBTT; or,
- the first indication information is an offset of the first TBTT value.
- the time interval between the sending time of the first frame and the second TBTT of the second Beacon message on the second link is greater than or equal to a preset duration
- the second Beacon The message is a Beacon message whose TBTT is after the sending time of the first frame and is the closest to the sending time of the first frame
- the first frame further includes the third remaining interval quantity carried in the second Beacon packet.
- the receiving module 1701 is also configured to:
- the first device After determining that the second device transmits the TBTT of the DTIM Beacon on the second link, if it is determined that the second device caches data to be transmitted through the second link, then in the TBTT of the DTIM Beacon , the first device receives the data packet sent by the second device on the second link, wherein the first device is in an awake state on the second link in the TBTT of the DTIM Beacon .
- the transmission device provided in the embodiment of the present application can execute the technical solutions shown in the above method embodiments, and its implementation principles and beneficial effects are similar, and will not be repeated here.
- FIG. 18 is a second structural schematic diagram of the transmission device provided by the embodiment of the present application.
- the transmission device 180 may include a sending module 1801, wherein,
- the sending module 1801 is further configured for the second device to send a first remaining interval number to the first device on the second link;
- the first interval information and/or the first remaining interval number are used to determine the TBTT for the second device to transmit a DTIM Beacon on the second link.
- the sending module 1801 is specifically configured to:
- the second device determines, according to the first interval information, a first moment for sending a first Beacon packet on the second link;
- the second device sends a first Beacon packet to the first device on the second link at the first moment, and the first Beacon packet includes the first remaining interval number, wherein , the first device is in an awake state on the second link at the first moment.
- the first frame further includes the second remaining interval number of the second link and/or first indication information, and the first indication information is used to indicate that the second The remaining number of intervals is the remaining number of intervals included in the Beacon packet sent by the second device on the second link in the first TBTT.
- At least one of the first interval information, the second remaining interval number, and the first indication information is used to determine whether the second device is in the second chain TBTT for transmitting DTIM Beacon packets on the road.
- the first indication information is the value of the first TBTT; or,
- the first indication information is an offset of the first TBTT value.
- the time interval between the sending time of the first frame and the second TBTT of the second Beacon message on the second link is greater than or equal to a preset duration
- the second Beacon The message is a Beacon message whose TBTT is after the sending time of the first frame and is the closest to the sending time of the first frame
- the first frame further includes the third remaining interval quantity carried in the second Beacon packet.
- the sending module 1801 is also configured to:
- the second device If it is determined that the second device caches the data to be transmitted through the second link, then at the TBTT of the DTIM Beacon, the second device sends a data packet on the second link.
- the transmission device provided in the embodiment of the present application can execute the technical solutions shown in the above method embodiments, and its implementation principles and beneficial effects are similar, and will not be repeated here.
- FIG. 19 is a first structural schematic diagram of a transmission device provided by an embodiment of the present application.
- the transmission device 190 may include: a transceiver 21 , a memory 22 , and a processor 23 .
- the transceiver 21 may include: a transmitter and/or a receiver.
- the transmitter may also be called a transmitter, a transmitter, a sending port, or a sending interface, and similar descriptions
- the receiver may also be called a receiver, a receiver, a receiving port, or a receiving interface, or similar descriptions.
- the transceiver 21 , the memory 22 , and the processor 23 are connected to each other through a bus 24 .
- the memory 22 is used to store program instructions; the processor 23 is used to execute the program instructions stored in the memory, so as to make the transmission device 190 execute any of the transmission methods shown above.
- the processor includes an Application Specific Integrated Circuit (ASIC).
- ASIC Application Specific Integrated Circuit
- the receiver of the transceiver 21 can be used to perform the receiving function of the transmission device in the above transmission method.
- FIG. 20 is a second schematic structural diagram of a transmission device provided by an embodiment of the present application.
- the transmission device 200 may include: a transceiver 31 , a memory 32 , and a processor 33 .
- the transceiver 31 may include: a transmitter and/or a receiver.
- the transmitter may also be called a transmitter, a transmitter, a sending port, or a sending interface, and similar descriptions
- the receiver may also be called a receiver, a receiver, a receiving port, or a receiving interface, or similar descriptions.
- the transceiver 31 , the memory 32 , and the processor 33 are connected to each other through a bus 34 .
- the memory 32 is used to store program instructions; the processor 33 is used to execute the program instructions stored in the memory, so as to make the transmission device 200 execute any one of the transmission methods shown above.
- the processor includes an ASIC.
- the receiver of the transceiver 31 can be used to perform the receiving function of the transmission device in the above transmission method.
- An embodiment of the present application provides a computer-readable storage medium, where computer-executable instructions are stored in the computer-readable storage medium, and when the computer-executable instructions are executed by a processor, they are used to implement the above transmission method.
- An embodiment of the present application may further provide a computer program product, which may be executed by a processor, and when the computer program product is executed, any transmission method performed by the terminal device or network device shown above may be implemented.
- the embodiment of the present application also provides a chip, including: a processing module and a communication interface, where the processing module can implement the technical solutions of the transmission device in the foregoing method embodiments.
- the chip also includes a storage module (such as a memory), the storage module is used to store instructions, and the processing module is used to execute the instructions stored in the storage module, and the execution of the instructions stored in the storage module makes the processing module perform any of the foregoing.
- a storage module such as a memory
- the terminal device, computer-readable storage medium, and computer program product in the embodiments of the present application can execute the transmission method introduced in the above-mentioned embodiments.
- the disclosed system, device and method can be implemented in other ways.
- the device embodiments described above are only illustrative.
- the division of the units is only a logical function division.
- multiple units or components can be combined or May be integrated into another system, or some features may be ignored, or not implemented.
- the mutual coupling or direct coupling or communication connection shown or discussed may be through some interfaces, and the indirect coupling or communication connection of devices or units may be in electrical, mechanical or other forms.
- each functional unit in each embodiment of the present application may be integrated into one processing unit, each unit may exist separately physically, or two or more units may be integrated into one unit.
- the above-mentioned integrated units can be implemented in the form of hardware or in the form of software functional units.
- the aforementioned computer program can be stored in a computer-readable storage medium.
- the computer program When the computer program is executed by the processor, it implements the steps of the above-mentioned method embodiments; and the aforementioned storage medium includes: ROM, RAM, magnetic disk or optical disk and other various media that can store program codes.
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
Description
Claims (33)
- 一种传输方法,其特征在于,应用于第一设备,所述第一设备和第二设备之间建立有至少两条链路,所述至少两条链路中包括第一链路和第二链路,所述方法包括:所述第一设备在所述第一链路上接收所述第二设备发送的第一帧,所述第一帧中包括第一间隔信息,所述第一间隔信息用于指示所述第二设备通过所述第二链路发送信标Beacon报文的时间间隔;所述第一设备在所述第二链路上接收所述第二设备发送的第一剩余间隔数量;所述第一设备根据所述第一间隔信息和/或所述第一剩余间隔数量,确定所述第二设备在所述第二链路上传输传送数据指示映射DTIM Beacon报文的目标信标发送时间TBTT。
- 根据权利要求1所述的方法,其特征在于,所述第一设备在所述第二链路上接收所述第二设备发送的第一剩余间隔数量,包括:所述第一设备根据所述第一间隔信息,确定在所述第二链路上接收第一Beacon报文的第一时刻;所述第一设备在所述第一时刻在所述第二链路上接收所述第二设备发送的第一Beacon报文,所述第一Beacon报文中包括所述第一剩余间隔数量,其中,所述第一设备在所述第一时刻在所述第二链路上处于唤醒状态。
- 根据权利要求1或2所述的方法,其特征在于,所述第一帧中还包括所述第二链路的第二剩余间隔数量和/或第一指示信息,所述第一指示信息用于指示所述第二剩余间隔数量为所述第二设备在第二链路上在第一TBTT发送的Beacon报文中所包括的剩余间隔数量。
- 根据权利要求3所述的方法,其特征在于,所述第一设备在所述第一链路上接收所述第二设备发送的第一帧之后,所述方法还包括:根据所述第一间隔信息、所述第二剩余间隔数量以及所述第一指示信息三者中的至少一个,确定所述第二设备在所述第二链路上传输DTIM Beacon报文的TBTT。
- 根据权利要求3或4所述的方法,其特征在于,所述第一指示信息为所述第一TBTT的值;或者,所述第一指示信息为所述第一TBTT的值的偏移量。
- 根据权利要求1-5任一项所述的方法,其特征在于,所述第一帧的发送时间与第二链路上的第二Beacon报文的第二TBTT之间的时间间隔大于或等于预设时长,所述第二Beaocn报文为TBTT在所述第一帧的发送时间之后并且与所述第一帧的发送时间最近的Beacon报文;所述第一帧中还包括所述第二Beacon报文中所携带的第三剩余间隔数量。
- 根据权利要求1-6任一项所述的方法,其特征在于,所述确定所述第二设备在所述第二链路上传输传送数据指示映射DTIM Beacon报文的目标信标发送时间TBTT的时间点之后,所述方法还包括:若确定所述第二设备缓存有待通过所述第二链路传输的数据,则在DTIM Beacon的TBTT,所述第一设备在所述第二链路上接收所述第二设备发送的数据包,其中,在所述DTIM Beacon的TBTT所述第一设备在所述第二链路上处于唤醒状态。
- 一种传输方法,其特征在于,应用于第二设备,所述第二设备和第一设备之间建立有至少两条链路,所述至少两条链路中包括第一链路和第二链路,所述方法包括:所述第二设备在所述第一链路上向所述第一设备发送第一帧,所述第一帧中包括第一间隔信息,所述第一间隔信息用于指示所述第二设备通过所述第二链路发送Beacon报文的时间间隔;所述第二设备在所述第二链路上向所述第一设备发送第一剩余间隔数量;其中,所述第一间隔信息和/或所述第一剩余间隔数量用于确定所述第二设备在所述第二链路上传输DTIM Beacon的TBTT。
- 根据权利要求8所述的方法,其特征在于,所述第二设备在所述第二链路上向所述第一设备发送第一剩余间隔数量,包括:所述第二设备根据所述第一间隔信息,确定在所述第二链路上发送第一Beacon报文的第一时刻;所述第二设备在所述第一时刻在所述第二链路上向所述第一设备发送第一Beacon报文,所述第一Beacon报文中包括所述第一剩余间隔数量,其中,所述第一设备在所述第一时刻在所述第二链路上处于唤醒状态。
- 根据权利要求8或9所述的方法,其特征在于,所述第一帧中还包括所述第二链路的第二剩余间隔数量和/或第一指示信息,所述第一指示信息用于指示所述第二剩余间隔数量为所述第二设备在第二链路上在第一TBTT发送的Beacon报文中所包括的剩余间隔数量。
- 根据权利要求10所述的方法,其特征在于,所述第一间隔信息、所述第二剩余间隔数量以及所述第一指示信息三者中的至少一个用于确定所述第二设备在所述第二链路上传输DTIM Beacon报文的TBTT。
- 根据权利要求10或11所述的方法,其特征在于,所述第一指示信息为所述第一TBTT的值;或者,所述第一指示信息为所述第一TBTT的值的偏移量。
- 根据权利要求8-12任一项所述的方法,其特征在于,所述第一帧的发送时间与第二链路上的第二Beacon报文的第二TBTT之间的时间间隔大于或等于预设时长,所述第二Beaocn报文为TBTT在所述第一帧的发送时间之后并且与所述第一帧的发送时间最近的Beacon报文;所述第一帧中还包括所述第二Beacon报文中所携带的第三剩余间隔数量。
- 根据权利要求8-13任一项所述的方法,其特征在于,所述方法还包括:若确定所述第二设备缓存有待通过所述第二链路传输的数据,则在所述DTIMBeacon的TBTT,所述第二设备在所述第二链路上发送数据包。
- 一种传输装置,其特征在于,应用于第一设备,所述第一设备和第二设备之间建立有至少两条链路,所述至少两条链路中包括第一链路和第二链路,所述装置包括:接收模块,用于所述第一设备在所述第一链路上接收所述第二设备发送的第一帧,所述第一帧中包括第一间隔信息,所述第一间隔信息用于指示所述第二设备通过所述第二链路发送信标Beacon报文的时间间隔;所述接收模块,还用于所述第一设备在所述第二链路上接收所述第二设备发送的第一剩余间隔数量;确定模块,用于所述第一设备根据所述第一间隔信息和/或所述第一剩余间隔数量,确定所述第二设备在所述第二链路上传输DTIM Beacon的TBTT。
- 根据权利要求15所述的装置,其特征在于,所述接收模块具体用于:所述第一设备根据所述第一间隔信息,确定在所述第二链路上接收第一Beacon报文的第一时刻;所述第一设备在所述第一时刻在所述第二链路上接收所述第二设备发送的第一Beacon报文,所述第一Beacon报文中包括所述第一剩余间隔数量,其中,所述第一设备在所述第一时刻在所述第二链路上处于唤醒状态。
- 根据权利要求15或16所述的装置,其特征在于,所述第一帧中还包括所述 第二链路的第二剩余间隔数量和/或第一指示信息,所述第一指示信息用于指示所述第二剩余间隔数量为所述第二设备在第二链路上在第一TBTT发送的Beacon报文中所包括的剩余间隔数量。
- 根据权利要求17所述的装置,其特征在于,所述确定模块还用于:在所述第一设备在所述第一链路上接收所述第二设备发送的第一帧之后,根据所述第一间隔信息、所述第二剩余间隔数量以及所述第一指示信息三者中的至少一个,确定所述第二设备在所述第二链路上传输DTIM Beacon报文的TBTT。
- 根据权利要求17或18所述的装置,其特征在于,所述第一指示信息为所述第一TBTT的值;或者,所述第一指示信息为所述第一TBTT的值的偏移量。
- 根据权利要求15-19任一项所述的装置,其特征在于,所述第一帧的发送时间与第二链路上的第二Beacon报文的第二TBTT之间的时间间隔大于或等于预设时长,所述第二Beaocn报文为TBTT在所述第一帧的发送时间之后并且与所述第一帧的发送时间最近的Beacon报文;所述第一帧中还包括所述第二Beacon报文中所携带的第三剩余间隔数量。
- 根据权利要求15-20任一项所述的装置,其特征在于,所述接收模块还用于:在所述确定所述第二设备在所述第二链路上传输DTIM Beacon的TBTT之后,若确定所述第二设备缓存有待通过所述第二链路传输的数据,则在DTIM Beacon的TBTT,所述第一设备在所述第二链路上接收所述第二设备发送的数据包,其中,在所述DTIM Beacon的TBTT所述第一设备在所述第二链路上处于唤醒状态。
- 一种传输装置,其特征在于,应用于第二设备,所述第二设备和第一设备之间建立有至少两条链路,所述至少两条链路中包括第一链路和第二链路,所述装置包括:发送模块,用于所述第二设备在所述第一链路上向所述第一设备发送第一帧,所述第一帧中包括第一间隔信息,所述第一间隔信息用于指示所述第二设备通过所述第二链路发送Beacon报文的时间间隔;所述发送模块,还用于所述第二设备在所述第二链路上向所述第一设备发送第一剩余间隔数量;其中,所述第一间隔信息和/或所述第一剩余间隔数量用于确定所述第二设备在所述第二链路上传输DTIM Beacon的TBTT。
- 根据权利要求22所述的装置,其特征在于,所述发送模块具体用于:所述第二设备根据所述第一间隔信息,确定在所述第二链路上发送第一Beacon报文的第一时刻;所述第二设备在所述第一时刻在所述第二链路上向所述第一设备发送第一Beacon报文,所述第一Beacon报文中包括所述第一剩余间隔数量,其中,所述第一设备在所述第一时刻在所述第二链路上处于唤醒状态。
- 根据权利要求22或23所述的装置,其特征在于,所述第一帧中还包括所述第二链路的第二剩余间隔数量和/或第一指示信息,所述第一指示信息用于指示所述第二剩余间隔数量为所述第二设备在第二链路上在第一TBTT发送的Beacon报文中所包括的剩余间隔数量。
- 根据权利要求24所述的装置,其特征在于,所述第一间隔信息、所述第二剩余间隔数量以及所述第一指示信息三者中的至少一个用于确定所述第二设备在所述第二链路上传输DTIM Beacon报文的TBTT。
- 根据权利要求24或25所述的装置,其特征在于,所述第一指示信息为所述第一TBTT的值;或者,所述第一指示信息为所述第一TBTT的值的偏移量。
- 根据权利要求22-26任一项所述的装置,其特征在于,所述第一帧的发送时间与第二链路上的第二Beacon报文的第二TBTT之间的时间间隔大于或等于预设时长,所述第二Beaocn报文为TBTT在所述第一帧的发送时间之后并且与所述第一帧的发送时间最近的Beacon报文;所述第一帧中还包括所述第二Beacon报文中所携带的第三剩余间隔数量。
- 根据权利要求22-27任一项所述的装置,其特征在于,所述发送模块还用于:若确定所述第二设备缓存有待通过所述第二链路传输的数据,则在所述DTIM Beacon的TBTT,所述第二设备在所述第二链路上发送数据包。
- 一种传输设备,其特征在于,包括:收发器、处理器、存储器;所述存储器存储计算机执行指令;所述处理器执行所述存储器存储的计算机执行指令,使得所述处理器执行如权利要求1至8任一项所述的传输方法;其中,所述处理器中包括专用集成电路ASIC。
- 一种传输设备,其特征在于,包括:收发器、处理器、存储器;所述存储器存储计算机执行指令;所述处理器执行所述存储器存储的计算机执行指令,使得所述处理器执行如权利要求9至16任一项所述的传输方法;其中,所述处理器中包括ASIC。
- 一种计算机可读存储介质,其特征在于,所述计算机可读存储介质中存储有计算机执行指令,当所述计算机执行指令被处理器执行时用于实现如权利要求1至7或8至14任一项所述的传输方法。
- 一种计算机程序产品,包括计算机程序,其特征在于,所述计算机程序被处理器执行时实现如权利要求1至7或8至14任一项所述的传输方法。
- 一种芯片,包括处理模块与通信接口,该处理模块用于实现如权利要求1至7或8至14任一项所述的传输方法。
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202180099113.XA CN117480821A (zh) | 2021-09-03 | 2021-09-03 | 传输方法及装置 |
| PCT/CN2021/116547 WO2023029009A1 (zh) | 2021-09-03 | 2021-09-03 | 传输方法及装置 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2021/116547 WO2023029009A1 (zh) | 2021-09-03 | 2021-09-03 | 传输方法及装置 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2023029009A1 true WO2023029009A1 (zh) | 2023-03-09 |
Family
ID=85411867
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/CN2021/116547 Ceased WO2023029009A1 (zh) | 2021-09-03 | 2021-09-03 | 传输方法及装置 |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN117480821A (zh) |
| WO (1) | WO2023029009A1 (zh) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20200396568A1 (en) * | 2014-08-19 | 2020-12-17 | Po-Kai Huang | Group addressed data delivery |
| CN112218363A (zh) * | 2019-07-12 | 2021-01-12 | 华为技术有限公司 | 一种多链路通信方法及相关装置 |
| US20210051513A1 (en) * | 2020-10-30 | 2021-02-18 | Alexander MIN | Enhanced traffic indications for multi-link wireless communication devices |
| CN112788716A (zh) * | 2019-11-08 | 2021-05-11 | 华为技术有限公司 | 一种多链路设备间的通信方法和装置 |
| US20210185607A1 (en) * | 2020-07-29 | 2021-06-17 | Laurent Cariou | Multi-link parameters and capability indication |
-
2021
- 2021-09-03 CN CN202180099113.XA patent/CN117480821A/zh active Pending
- 2021-09-03 WO PCT/CN2021/116547 patent/WO2023029009A1/zh not_active Ceased
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20200396568A1 (en) * | 2014-08-19 | 2020-12-17 | Po-Kai Huang | Group addressed data delivery |
| CN112218363A (zh) * | 2019-07-12 | 2021-01-12 | 华为技术有限公司 | 一种多链路通信方法及相关装置 |
| CN112788716A (zh) * | 2019-11-08 | 2021-05-11 | 华为技术有限公司 | 一种多链路设备间的通信方法和装置 |
| US20210185607A1 (en) * | 2020-07-29 | 2021-06-17 | Laurent Cariou | Multi-link parameters and capability indication |
| US20210051513A1 (en) * | 2020-10-30 | 2021-02-18 | Alexander MIN | Enhanced traffic indications for multi-link wireless communication devices |
Also Published As
| Publication number | Publication date |
|---|---|
| CN117480821A (zh) | 2024-01-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP3820225B1 (en) | Multi access point coordination of target wake time schedules | |
| US20190253965A1 (en) | Data communication method and apparatus | |
| US20240137979A1 (en) | Wireless communication method using multi-link, and wireless communication terminal using same | |
| US20240397399A1 (en) | Methods of transition of bearers | |
| EP3849099A1 (en) | Channel sounding for multi-ap coordinated beamforming (cbf) and multi-ap joint transmission (jt) in an eht network | |
| US20240357653A1 (en) | Sensing reporting method and device | |
| CN108834119A (zh) | 无线局域网系统中的扫描方法以及用于其的支持装置 | |
| TWI880108B (zh) | 支持無線tsn的ap mld進行資料傳輸的方法及裝置 | |
| US20230309151A1 (en) | Wireless communication method using multiple links, and wireless communication terminal using same | |
| US20240064837A1 (en) | Wireless communication method using multilink, and wireless communication terminal using same | |
| US20240430740A1 (en) | Wireless communication method and device | |
| US20240114573A1 (en) | Wireless communication method using multi-link and wireless communication terminal using same | |
| EP4132118A1 (en) | Method for switching receive chain open state, and first multilink device | |
| WO2023206579A1 (zh) | 通信方法和设备 | |
| JP2024529982A (ja) | 低複雑度のwlanセンシングに関連するアプリケーションのための通信装置および通信方法 | |
| US20250301524A1 (en) | Multi-link communication method and apparatus | |
| CN104579616B (zh) | 一种多天线多信道聚合多站点并行轮询方法 | |
| WO2024065461A1 (zh) | 多链路通信的方法及设备 | |
| US20250227604A1 (en) | Wireless communication method using multi-link and wireless communication terminal using same | |
| CN100559765C (zh) | 连接通信网的子网的方法和桥接终端以及所述通信网 | |
| WO2023029009A1 (zh) | 传输方法及装置 | |
| US20230262805A1 (en) | Triggered multi-link access coordination | |
| WO2024109614A1 (zh) | 信息指示方法及设备 | |
| US20250393073A1 (en) | Dynamic unavailability operation for wireless network | |
| US20240357649A1 (en) | Qos procedures for wlan |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 21955542 Country of ref document: EP Kind code of ref document: A1 |
|
| WWE | Wipo information: entry into national phase |
Ref document number: 202180099113.X Country of ref document: CN |
|
| NENP | Non-entry into the national phase |
Ref country code: DE |
|
| 122 | Ep: pct application non-entry in european phase |
Ref document number: 21955542 Country of ref document: EP Kind code of ref document: A1 |
|
| 122 | Ep: pct application non-entry in european phase |
Ref document number: 21955542 Country of ref document: EP Kind code of ref document: A1 |