WO2021008399A1 - 一种多链路通信方法及相关装置 - Google Patents
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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
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W74/00—Wireless channel access
- H04W74/08—Non-scheduled access, e.g. ALOHA
- H04W74/0808—Non-scheduled access, e.g. ALOHA using carrier sensing, e.g. carrier sense multiple access [CSMA]
- H04W74/0816—Non-scheduled access, e.g. ALOHA using carrier sensing, e.g. carrier sense multiple access [CSMA] with collision avoidance
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W74/00—Wireless channel access
- H04W74/08—Non-scheduled access, e.g. ALOHA
- H04W74/0833—Random access procedures, e.g. with 4-step access
- H04W74/0841—Random access procedures, e.g. with 4-step access with collision treatment
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- H—ELECTRICITY
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- H04W—WIRELESS COMMUNICATION NETWORKS
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- H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
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Definitions
- This application relates to the field of communication technology, and in particular to a multi-link communication method and related devices.
- multi-link devices can support multi-link communication, such as simultaneous communication on 2.4GHz, 5GHz and 60GHz frequency bands. Even when the number of antennas is limited, multi-link devices Road equipment can also switch between different frequency bands to select the best frequency band to ensure its communication quality. As more and more application traffic is carried by wireless networks, high speed is the evolution goal of wireless fidelity (wreless-fidelity, WiFi) systems.
- wireless fidelity wireless fidelity
- WiFi wireless local area networks
- Multi-link aggregation communication involves coordination between multiple links, and there are mutual restrictions between multiple links. For example, it is difficult for a wireless transceiver unit to support full-duplex operation. If data is sent and received simultaneously on two links that cannot support simultaneous sending and receiving operations, the communication quality cannot be guaranteed.
- the embodiments of the present application provide a multi-link communication method and related devices, which can ensure communication quality.
- an embodiment of the present application provides a multi-link communication method, including: a first station generates a radio frame, the first station is one of a plurality of stations included in the first multi-link device, and the first multi-link device
- the road equipment includes a first station working on the first link and a second station working on the second link; the first station sends a radio frame on the first link, and the radio frame includes capability indication information and capability indication information Used to indicate whether the first station and the second station support simultaneous sending and receiving operations.
- Carrying capability indication information in the wireless frame indicates whether the first station working on the first link and the second station working on the second link in the first multi-link device support simultaneous transmission and reception operations.
- the other stations that have received the capability indication information can determine whether the first station and the second station in the first multi-link device can support sending and receiving data at the same time. In the case of supporting simultaneous sending and receiving, the other stations can communicate with the first station and The second site performs simultaneous transmission and reception, thereby improving communication efficiency; for situations where simultaneous transmission and reception are not supported, other sites can avoid causing the first site and the second site to simultaneously transmit and receive, thereby ensuring communication quality.
- the multi-link device does not support simultaneous receiving and sending operations on the first link and the second link.
- the multi-link device does not support simultaneous sending and receiving operations on the first link and the second link includes: the multi-link device does not support the physical layer protocol that the first station sends the first bandwidth on the first link at the same time
- the data unit PPDU and the second station receive the physical layer protocol data unit PPDU of the second bandwidth on the second link, or the first station does not support receiving the physical layer protocol data unit of the first bandwidth on the first link
- the physical layer protocol data unit of the second bandwidth is sent with the second station on the second link.
- the "simultaneous transmission and reception” or “simultaneous” in the embodiment of this application does not refer to the starting time point of the sent data and the received data Strictly the same as the end time point, it may mean that there is a non-empty intersection in time between the PPDU of the first bandwidth and the PPDU of the second bandwidth.
- an embodiment of the present application provides a multi-link communication method, including: a third station receives a radio frame sent by a first station among a plurality of stations included in the first multi-link device, and the first station
- the link device includes a first station working on the first link and a second station working on the second link; wherein the wireless frame includes capability indication information, and the capability indication information is used to indicate the first station and the second station Whether to support simultaneous sending and receiving operations; the third station determines whether the first station and the second station support simultaneous sending and receiving operations according to the capability indication information.
- the third station that receives the capability indication information can determine whether the first station and the second station in the first multi-link device can support sending and receiving data at the same time.
- the third station can communicate with the first station.
- the site and the second site perform simultaneous transmission and reception, thereby improving communication efficiency; for situations where simultaneous transmission and reception are not supported, other sites can avoid causing the first site and the second site to simultaneously transmit and receive, thereby ensuring communication quality.
- the capability indication information includes first indication information, and the first indication information is used to indicate whether the first station and the second station support simultaneous sending and receiving operations.
- the simultaneous sending and receiving operations include a first operation and a second operation, the first operation is receiving when the first station sends, and the second operation is When the first station receives it and the second station sends it, the first indication information includes 1 bit information, and the 1 bit information is used to indicate whether the first station and the second station support the first operation and the second operation at the same time.
- the simultaneous sending and receiving operations include a first operation and a second operation, the first operation is receiving when the first station sends, and the second operation is When received by the first station, the second station sends it.
- the first indication information includes 2bits information. The first bit information in the 2bits information is used to indicate whether the first station and the second station support the first operation. The second information in the 2bits information The bit information is used to indicate whether the first station and the second station support the second operation.
- the first indication information includes multiple 1bits or multiple 2bits, and one 1bit or one 2bits is used to indicate whether to support the first station to use the first bandwidth and the second The two sites use the second bandwidth for simultaneous receiving and sending operations. It is realized that the first site and the second site respectively use different bandwidths for simultaneous receiving and sending operations.
- the capability indication information includes second indication information, and the second indication information includes a threshold value, and the threshold value is used to indicate that two simultaneous sending and receiving operations are supported.
- the threshold value allows the third station to determine whether the first station and the second station support simultaneous sending and receiving operations.
- the capability indication information includes first indication information and second indication information
- the second indication information includes a threshold value
- the first indication information is used to indicate when When the difference between the working frequency of the first station and the working frequency of the second station is greater than the threshold, whether the first station and the second station support simultaneous sending and receiving operations.
- a joint instruction is performed through the first instruction information and the second instruction information, and simultaneous sending and receiving operations are performed when the requirements are met at the same time.
- the first multilink device includes at least one multilink logical entity, one multilink logical entity includes at least one station, and the capability indication information includes a third indication Information, the third indication information is used to indicate whether the first station and the second station are in the same multi-link logical entity. Therefore, when the first station and the second station are in the same multi-link logical entity, data frames of the same service type can be sent in a multi-link aggregate communication manner.
- the radio frame includes an information element, the capability indication information is carried in the information element, the information element includes the identification information of the second link, and the information element includes a multi-band element, Simplified neighbor report element or neighbor report element.
- the radio frame includes a transceiver capability information element, the transceiver capability information element includes element identification, element length, and capability indication information, and the capability indication information includes the link of the first link. Road ID and the link ID of the second link. It is possible to indicate whether the first station working on the first link in the first multi-link device and any station working on other links support simultaneous sending and receiving operations in a single transceiver capability information element, without the need to go through one by one Information elements are used to indicate, thereby reducing signaling overhead.
- an embodiment of the present application provides a multi-link communication method, including: a first multi-link device receives a physical protocol data unit PPDU sent by a second multi-link device on a main link, and the first multi-link device There are multiple links between the road device and the second multi-link device, and the multiple links include the primary link and the secondary link adjacent to the primary link; the first multi-link device sets the transmission prohibition time and prohibits transmission The time is used to indicate the time during which the station working on the secondary link in the first multi-link device is prohibited from sending data.
- the sending and receiving of data on the secondary link is prohibited by setting the prohibition sending time to avoid simultaneous sending and receiving of data on adjacent links, thereby reducing the interference of the primary link Conflict with competition.
- the time when sending is prohibited includes a start time point and an end time point.
- the prohibited sending time includes the starting time point and the length of time.
- the starting time point is the time point at which the signaling field in the physical layer preamble is obtained, or the receiving address in the media access control MAC frame header in the PPDU is determined to be the same as the one working on the main link.
- the end time point is the end time point of the PPDU, or the end time point of the block confirmation BA in response to the PPDU, or the time point of the BA in response to the PPDU plus the time point of the short interframe interval SIFS, or the end time of the transmission opportunity TXOP to which the PPDU belongs point.
- the time point may also be referred to as a moment in time.
- the starting time point is the smallest starting value among the multiple prohibited sending times corresponding to the multiple primary links, and the ending time point It is the maximum end value of the multiple prohibited sending times corresponding to multiple main links. Therefore, it is ensured that the prohibited transmission time set for the secondary link can meet the requirements of multiple primary links at the same time, and will not cause interference and competition conflicts on all primary links.
- the time length is the maximum value of the multiple time lengths corresponding to the multiple primary links. Therefore, it is ensured that the prohibited transmission time set for the secondary link can meet the requirements of multiple primary links at the same time, and will not cause interference and competition conflicts on all primary links.
- an embodiment of the present application provides a first multi-link communication device configured to implement the method performed by the first multi-link device in the first aspect and the third aspect.
- the sum function is realized by hardware/software, and the hardware/software includes modules corresponding to the above-mentioned functions.
- an embodiment of the present application provides a second multi-link communication device, and the second multi-link device is configured to implement the method and function performed by the second multi-link device in the above second aspect.
- Hardware/software implementation, and its hardware/software includes modules corresponding to the above-mentioned functions.
- an embodiment of the present application provides a first multi-link device, including: a processor, a memory, and a communication bus, where the communication bus is used to implement connection and communication between the processor and the memory, and the processor executes the The stored program is used to implement the steps of the first aspect and the third aspect described above.
- the first multi-link device provided in the present application may include a module corresponding to the behavior of the first entity in the foregoing method design.
- the module can be software and/or hardware.
- an embodiment of the present application provides a second multi-link device, including: a processor, a memory, and a communication bus, where the communication bus is used to implement connection and communication between the processor and the memory, and the processor executes the memory
- the stored program is used to implement the steps provided in the second aspect above.
- the second multi-link device provided in the present application may include a module corresponding to the behavior of the first multi-link device in the foregoing method design.
- the module can be software and/or hardware.
- the present application provides a computer-readable storage medium with instructions stored in the computer-readable storage medium, which when run on a computer, cause the computer to execute the methods of the above aspects.
- the present application provides a computer program product containing instructions, which when run on a computer, causes the computer to execute the methods of the above aspects.
- a chip including a processor, configured to call and execute instructions stored in the memory from the memory, so that a communication device installed with the chip executes the method of any one of the above aspects.
- the embodiments of the present application also provide another chip, which may be a chip in the first multi-link device or the second multi-link device, and the chip includes: an input interface, an output interface and a processing circuit, The input interface, the output interface, and the circuit are connected through an internal connection path, and the processing circuit is used to execute any of the above methods.
- another chip including: an input interface, an output interface, a processor, and optionally, a memory.
- the input interface, output interface, the processor and the memory are connected through an internal connection path, and the processor uses To execute the code in the memory, when the code is executed, the processor is used to execute the method in any of the above aspects.
- a device is provided to implement the method in any one of the foregoing aspects.
- FIG. 1 is a schematic diagram of the architecture of a communication system provided by an embodiment of the present application.
- FIG. 2 is a schematic diagram of an association relationship between multi-link devices according to an embodiment of the present application
- FIG. 3 is a schematic flowchart of a multi-link communication method provided by an embodiment of the present application.
- FIG. 4 is a schematic diagram of a multi-band element provided by an embodiment of the present application.
- FIG. 5 is a schematic diagram of other fields included in a multi-link element provided by an embodiment of the present application.
- FIG. 6 is a schematic diagram of a simplified neighbor node report element provided by an embodiment of the present application.
- FIG. 7 is a schematic diagram of other fields included in a simplified neighbor node report element provided by an embodiment of the present application.
- FIG. 8 is a schematic diagram of a neighbor node report element provided by an embodiment of the present application.
- FIG. 9 is a schematic diagram of other fields included in a neighbor node report element provided by an embodiment of the present application.
- FIG. 10 is a schematic diagram of a transceiving capability information element provided by an embodiment of the present application.
- FIG. 11 is a schematic flowchart of another multi-link communication method provided by an embodiment of the present application.
- FIG. 12 is a schematic diagram of data transmission according to an embodiment of the present application.
- FIG. 13 is a schematic structural diagram of a first multi-link communication device provided by an embodiment of the present application.
- FIG. 14 is a schematic structural diagram of a second multi-link communication device provided by an embodiment of the present application.
- FIG. 15 is a schematic structural diagram of a first multi-link device proposed by an embodiment of the present application.
- FIG. 16 is a schematic structural diagram of a second multi-link device proposed in an embodiment of the present application.
- FIG. 1 is a schematic diagram of the architecture of a communication system provided by an embodiment of the present application.
- the communication system includes access point equipment and site equipment.
- the multi-link device in the embodiment of the present application may be a site device or an access point device. If the multi-link device is an access point device, the multi-link device includes one or more access points (AP); if the multi-link device is a site device, the multi-link device includes one or more Station (station, STA).
- This architecture can also be extended to the application scenarios of base station (BS) and user equipment (UE).
- BS base station
- UE user equipment
- AP can be the access point for mobile users to enter the wired network. It is mainly deployed in homes, buildings, and parks. The typical coverage radius is tens of meters to hundreds of meters.
- AP is equivalent to a bridge connecting wired and wireless networks, and 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 WiFi chip.
- the AP can be a device that supports the 802.11ax standard.
- the AP can also be a device supporting multiple wireless local area networks (WLAN) standards such as 802.11ac, 802.11n, 802.11g, 802.11b, and 802.11a.
- WLAN wireless local area networks
- the STA can be a wireless communication chip, a wireless sensor, or a wireless communication terminal.
- the STA may 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.
- FIG. 2 is a schematic diagram of an association relationship between multi-link devices according to an embodiment of the present application.
- the multi-link device shown in FIG. 2 includes a first multi-link device and a second multi-link device.
- the first multi-link device or the second multi-link device may include at least one multi-link logical entity, one
- the multi-link logical entity may include one or more stations, and each station works on a different link.
- STA1 and STA2 in the first multilink device belong to one multilink logical entity
- STAn in the first multilink device belongs to another multilink logical entity.
- STA1 and STA2 in the second multilink device belong to one multilink logical entity, and STAn in the second multilink device belongs to another multilink logical entity. If the first multilink device needs to communicate with the second multilink device, each station in the first multilink device needs to be associated with a corresponding station in the second multilink device. As shown in Figure 2, STA1 in the first multi-link device is associated with STA1 in the second multi-link device, and works on link 1. STA2 in the first multi-link device is associated with STA2 in the second multi-link device and works on link 2. STAn in the first multi-link device is associated with STAn in the second multi-link device and works on link n. This enables each station in the first multi-link device to establish a connection with the corresponding station in the second multi-link device on its respective link, so as to realize multi-link communication between the two multi-link devices.
- Multi-link aggregation communication involves coordination between multiple links, and there are mutual restrictions between the links.
- the current wireless transceiver unit is still difficult to support full-duplex operation.
- Two links that are very close cannot achieve simultaneous transceiver operations, while two links that are far apart can achieve simultaneous transceiver operations.
- the prior art The solution does not indicate the simultaneous transmission and reception capabilities of each link, which affects the communication efficiency. If data is sent and received simultaneously on two links that cannot support simultaneous sending and receiving operations, the communication quality cannot be guaranteed.
- FIG. 3 is a schematic flowchart of a multi-link communication method according to an embodiment of the present application. The method includes but is not limited to the following steps:
- a first station generates a radio frame, where the first station is one of a plurality of stations included in a first multi-link device, and the first multi-link device includes the first station working on the first link.
- the link is determined according to the frequency band of the site, or the frequency band and channel of the site.
- a frequency band can include multiple channels. If the frequency bands of multiple sites are different, the links of the multiple sites are different. Or if multiple sites work in the same frequency band but on different channels, the links operated by the multiple sites are also different.
- the first station and the second station may be Non-AP STAs, or AP-STAs. If the first station and the second station are Non-AP STAs, the wireless frame may be a probe request frame, an authentication frame, an association request frame, or a re-association request frame. If the first station and the second station are AP STAs, the wireless frame may be a beacon frame, a probe response frame, an association response frame, an authentication frame, or a re-association response frame.
- the first station sends the radio frame on the first link, and the third station in the second multi-link device receives one of the multiple stations included by the first multi-link device.
- a sent radio frame, the radio frame includes capability indication information, the capability indication information is used to indicate whether the first station and the second station support simultaneous transceiver operations, the third station in the second multi-link device It may be determined whether the first station and the second station support simultaneous sending and receiving operations according to the capability indication information.
- the third station may not be a station in a multi-link device, but a station that can work on a single link, for example, a station that works on the first link.
- the capability indication information includes first indication information, and the first indication information is used to indicate whether the first station and the second station support simultaneous sending and receiving operations.
- the simultaneous transceiving operation includes a first operation and a second operation.
- the first operation may be received by the second station when the first station transmits, and the second operation may be received at the first station.
- the second station sends when the station receives it.
- the first operation may also be sent by the second station when the first station is receiving, and the second operation may also be received by the second station when the first station is sending, which is not limited here.
- the first indication information includes 1 bit information, and the 1 bit information is used to indicate whether the first station and the second station support the first operation and the second operation at the same time.
- the 1-bit information of the first indication information may be 0 or 1. If the 1-bit information is 1, it may indicate that the first station and the second station support both the first operation and the second operation. If the 1-bit information is 0, It means that the first site and the second site do not support the first operation and the second operation at the same time. Among them, the roles and functions indicated by 0 and 1 can also be interchanged, which is not limited here.
- the simultaneous sending and receiving operation includes a first operation and a second operation, the first operation is receiving at the second station when the first station sends, and the second operation is receiving at the first station When the second station sends, the first operation may also be sent by the second station when the first station receives it, and the second operation may also be the first station when the first station sends
- the second site is not limited here.
- the first indication information includes 2bits information, and the first bit information in the 2bits information is used to indicate whether the first station and the second station support the first operation, and the first bit in the 2bits information Two bits of information are used to indicate whether the first station and the second station support the second operation.
- 2bits information can include 00, 10, 01, or 11.
- 00 may indicate that the first site and the second site do not support the first operation and do not support the second operation.
- 10 may indicate that the first site and the second site support the first operation but not the second operation.
- 01 may indicate that the first site and the second site do not support the first operation but support the second operation.
- 11 may indicate that the first site and the second site support the first operation and support the second operation.
- the roles and functions indicated by 0 and 1 can also be interchanged, which is not limited here.
- the first indication information further includes multiple 1bits or multiple 2bits, one of the 1bit or one of the 2bits is used to indicate whether to support the first station to use the first bandwidth and the second station Use the second bandwidth to simultaneously transmit and receive operations.
- the first bandwidth is the data transmission bandwidth of the first station, which may include but is not limited to 20MHz, 40MHz, 80MHz, 160MHz, or 320MHz;
- the second bandwidth is the data transmission bandwidth of the second station, which may include but is not limited to 20MHz, 40MHz, 80MHz, 160MHz or 320MHz.
- the first site can use 20MHz, 40MHz, or 80MHz bandwidth to transmit data
- the second site can use 80MHz or 160MHz bandwidth to transmit data.
- the first site uses a 20MHz bandwidth to transmit data
- the second site uses a 160MHz bandwidth to transmit data.
- the first site uses a 40MHz bandwidth to transmit data
- the second site uses an 80MHz bandwidth to transmit data.
- the first site uses a 40MHz bandwidth to transmit data
- the second site uses a 160MHz bandwidth to transmit data.
- the first site uses 80 MHz bandwidth to transmit data
- the second site uses 80 MHz bandwidth to transmit data.
- the first site uses 80 MHz bandwidth to transmit data
- the second site uses 160 MHz bandwidth to transmit data.
- six 1bits or six 2bits can be used for indication.
- the above six channel bandwidth configurations can use six 1-bit indications. If the first indication information is 100,000, it can indicate that the first channel bandwidth configuration is used for simultaneous sending and receiving, that is, the first station is supported to use 20MHz bandwidth to receive (or send). ) When data is used, the second site uses 80MHz bandwidth to send (or receive) data.
- the first indication information is 001000, it can indicate that the third channel bandwidth configuration is supported for simultaneous sending and receiving, that is, when the first site uses 40MHz bandwidth to receive (or send) data, the second site uses 80MHz bandwidth to send (or receive). )data.
- the other channel bandwidth configurations are similar, and will not be repeated in the embodiment of this application.
- the capability indication information may include second indication information, and the second indication information includes a threshold value, and the threshold value is used to indicate the difference between the operating frequency points of the two links that support simultaneous sending and receiving operations The minimum value.
- the third station in the second multilink device obtains the information element in the wireless frame, where the information element includes the identification information of the second link, and according to the second link
- the identification information can determine the operating frequency point of the second station working on the second link in the first multi-link device, and the operating frequency point of the second station is compared with the operating frequency point of the first station that sends the wireless frame.
- the third station in the second multi-link device can determine that the first station and the second station in the first multi-link device support simultaneous transmission and reception operations. If the working frequency of the first station is the same as that of the second station The difference between the operating frequency points of the stations is less than or equal to (or less than) the threshold, the third station in the second multilink device can determine that the first station and the second station in the first multilink device are not Support simultaneous sending and receiving operations.
- the threshold value may be in a unit of a certain bandwidth width, such as 5 MHz or 20 MHz.
- the capability indication information may include first indication information and second indication information
- the second indication information includes a threshold value
- the first indication information is used to indicate when the operating frequency of the first station is When the difference between the operating frequency points of the second station and the second station is greater than the threshold value, whether the first station and the second station support simultaneous sending and receiving operations.
- the third station in the second multi-link device receives the wireless frame, if it is determined that the difference between the working frequency of the first station and the working frequency of the second station is greater than (or greater than or equal to) According to the threshold value, and it is determined according to the first indication information that the first station and the second station support simultaneous sending and receiving operations, the third station may determine that the first station and the second station support simultaneous receiving and sending operations.
- the third station may determine that the first station and the second station cannot support the simultaneous receiving and sending operations. If the third station determines that the difference between the operating frequency of the first station and the operating frequency of the second station is less than or equal to the threshold, in this case, regardless of whether the first indication information indicates whether to support simultaneous For receiving and sending operations, the third station determines that the first station and the second station cannot support simultaneous receiving and sending operations.
- the first indication information is set to a reserved value.
- the first multi-link device includes at least one multi-link logical entity (MLO entity), one multi-link logical entity includes at least one station, and the capability indication information includes Third indication information, where the third indication information is used to indicate whether the first station and the second station are in the same multilink logical entity. Further, if the first station and the second station are in the same MLO entity, the first station and the second station can send data frames of the same service type (traffic ID, TID) through multi-link aggregation communication. . If the first station and the second station are in different MLO entities, the first station and the second station may send data frames through multi-link aggregation communication, but the data frames are data frames of different service types.
- MLO entity multi-link logical entity
- TID traffic ID
- the first station and the second station may send data frames through multi-link aggregation communication, but the data frames are data frames of different service types.
- the radio frame includes an information element
- the capability indication information is carried in the information element
- the information element includes identification information of the second link
- the information element may be a multi-band element ( multi-band element), or simplified neighbor report element (reduced neighbor report element, RNR element) or neighbor report element (neighbor report element).
- the multi-band element can be used to indicate the working link of the second station.
- the RNR element and neighbor report element may indicate neighbor nodes detected by the first site, and are used to carry information about the detected neighbor nodes.
- the neighbor node may be a site other than the first site of the first multilink device, that is, the second site.
- One or more of the first indication information, the second indication information, and the third indication information may be carried in a multi-band element, or RNR element, or neighbor report element.
- FIG. 4 is a schematic diagram of a multi-band element provided in an embodiment of the present application.
- the multi-band element may include the first indication information field, the second indication information field, and the third indication information field.
- the multi-band element may also include other fields.
- the ellipsis part in FIG. 4 may include multiple fields as shown in FIG. 5.
- the multiple fields may include a band ID (band ID) field, a channel number (channel number) field, and an operating class (operating class) field.
- the frequency band identification field, the channel number field and the operation level can be used to indicate the second link that the second station works.
- the multiple fields may also include an element ID field, a length field, a multi-band control field, a beacon interval field, and a multi-band connection capability ( Multi-band connection capability field, station MAC address (STA MAC address) field, etc.
- the positions of the first indication information field, the second indication information field, the third indication information field, and the multiple fields shown in FIG. 5 in the multi-band element are not limited.
- FIG. 6 is a schematic diagram of a simplified neighbor node report element RNR element provided by an embodiment of the present application.
- the RNR element may include one or more of the first indication information field, the second indication information field, and the third indication information field.
- the number of bits in the first indication information field, the second indication information field, and the third indication information field are all It is not limited, and the location is not limited.
- the number of bits can be 1bit or 2bits.
- the RNR element may also include other fields.
- the ellipsis part in FIG. 6 may include multiple fields as shown in FIG. 7.
- the multiple fields may include a neighbor AP information (neighbor AP information) field, and the neighbor AP information field may further include a channel number (channel number) field and an operating class (operating class) field.
- the multiple fields may further include an element ID (element ID) field, a length (length) field, and so on.
- element ID element ID
- length length
- FIG. 8 is a schematic diagram of a neighbor report element provided by an embodiment of the present application.
- the neighbor report element may include one or more of the first indication information field, the second indication information field, and the third indication information field, where the number of bits in the first indication information field, the second indication information field, and the third indication information field It is not limited, and the position is not limited.
- the number of bits can be 1bit or 2bits.
- the neighbor report element may also include other fields.
- the part indicated by the ellipsis in FIG. 8 may include multiple fields as shown in FIG. 9, and the multiple fields may include a channel number (channel number) field and an operating class (operating class) field.
- the multiple fields may also include an element ID (element ID) field, a length (length) field, a basic service set ID (basic service set ID, BSSID) field, a BSSID information (BSSID information) field, and optional Element (optional subelements) fields and so on.
- element ID element ID
- length length
- BSSID basic service set ID
- BSSID information BSSID information
- the multi-band element (or RNR element, neighbor report element) is carried in the radio frame sent on the first link and carries the identifier of the second link.
- the third link of the multi-band element is received on the first link.
- the station may determine whether the first station is on the first link and the second station is on the second link according to the second link indicated by the multi-band element and the first indication information and/or the second indication information Support simultaneous sending and receiving operations. In this way, the multi-band element (or RNR element, neighbor report element) of the first link may not be carried, thereby saving signaling overhead.
- the radio frame may include a newly defined transceiver capability information element, the transceiver capability information element includes an element identification field, a length field, and a capability indication information field, and the capability indication information includes the information element of the first link.
- the transceiver capability information element can be used to indicate whether the first station and the second station support simultaneous transceiver operations, so that one transceiver capability information element can indicate the first station in the first multilink device that is working on the first link And whether any station working on other links supports simultaneous receiving and sending operations without the need to indicate one by one through information elements, thereby reducing signaling overhead.
- FIG. 10 is a schematic diagram of a transceiving capability information element provided by an embodiment of the present application.
- the transceiver capability information element may include an element identification field, an element length field, and a capability indication information field.
- the capability indication information field may further include N capability indication units, where N is an integer greater than or equal to 1.
- One capability indication unit may include two link identifiers that the first multilink device needs to indicate.
- the capability indicating unit #1 may include the link identifier of link 1 and the link identifier of link 2, indicating that the station working on link 1 and the station working on link 2 in the first multi-link device Can support simultaneous sending and receiving operations.
- the capability indicating unit #2 may include the link identification of link 3 and the link identification of link 4, indicating that the station working on link 3 and the station working on link 4 in the first multi-link device can support simultaneous
- the link identifier may include a channel identifier (band ID), an operating class (operating class), a channel number (channel number), and so on.
- one capability indication unit may further include one or more of the first indication information, the second indication information, and the third indication information. Among them, the functions and roles of the first indication information, the second indication information, and the third indication information have been described in detail above, and will not be repeated in this embodiment of the application.
- the capability indication information contained in the wireless frame sent by the first multilink device can be used to indicate whether the first station working on the first link and a second station working on the second link support simultaneous
- the transceiving operation can also be used to indicate whether the first station working on the first link and the multiple stations working on other multiple links in the first multi-link device support simultaneous transceiving operations.
- the capability indication information is carried in the wireless frame to indicate whether the first station working on the first link and the second station working on the second link in the first multilink device support simultaneous
- other stations that receive the capability indication information can determine whether the first station and the second station in the first multi-link device can support sending and receiving data at the same time.
- other stations can communicate with the first station.
- the first site and the second site perform simultaneous transmission and reception, thereby improving communication efficiency; for situations where simultaneous transmission and reception are not supported, other sites can avoid causing the first site and the second site to transmit and receive simultaneously, thereby ensuring communication quality.
- FIG. 11 is a schematic flowchart of another multi-link communication method provided by an embodiment of the present application. The method includes but is not limited to the following steps:
- the second multilink device sends a physical protocol data unit (PHY protocol data unit, PPDU) to the first multilink device on the main link, and the first multilink device receives the second multilink on the main link.
- PHY protocol data unit PHY protocol data unit
- a PPDU sent by a road device, the first multi-link device and the second multi-link device include multiple links, and the multiple links include the main link and are connected to the main link The adjacent secondary link.
- the first multi-link device in FIG. 11 includes a first site and a second site
- the second multi-link device includes a third site and a fourth site.
- the link between the first site and the third site is the primary link
- the link between the second site and the fourth site is the secondary link.
- the primary link and the secondary link are relatively close, if the first site and the second site in the first multi-link device send and receive data at the same time, the secondary link will cause interference to the data transmission on the primary link Conflict with competition.
- the second multi-link device may not be a device working on a multi-link, or may be a device working on a single link, such as a main link.
- the first multilink device sets a transmission prohibition time, where the transmission prohibition time is used to indicate a time when a station working on the secondary link in the first multilink device is prohibited from sending data.
- the first multilink device may set a sending prohibition time when determining that the PPDU is sent to itself.
- the first station in the first multi-link device may first determine the time for prohibition of sending, and then send a notification message to the second station.
- the notification message includes the time for prohibition of sending.
- the transmission prohibition time can also be determined and set by a module in the first multi-link device, which is not limited here.
- the sending prohibited time includes a start time point and an end time point.
- the sending prohibited time includes a starting time point and a time length. The time length is calculated by subtracting the start time point from the end time point of the prohibited sending time.
- the time length is used to set a timer.
- the second station can set a timer according to the time length. Timer, before the timer is reduced to 0, the second station does not send data. That is, when the first station of the first multi-link device receives data, the second station of the first multi-link device is prohibited from sending data within the time window indicated by the prohibition time.
- the sending prohibited time on the secondary link only includes a time length, during which the secondary link cannot be sent.
- the calculation method of the time length may be the time length of the end minus the starting point of the aforementioned sending prohibited time period, and the time length is used to set a timer.
- the starting time point may be a certain time point in the physical layer preamble, such as the time point when the signaling field in the physical layer preamble is acquired, and "acquisition" may also be receiving, parsing or detecting.
- the starting point in time may also be a point in time when it is determined that the receive address (receive address, RA) in the media access control MAC frame header in the PPDU matches the address of the station working on the main link.
- the starting time point may also be a time point when a frame check sequence (FCS) is received and the data packet is received correctly.
- FCS frame check sequence
- the end time point may be the end time point of the PPDU.
- the termination time point may also be the termination time point of the block acknowledgement (BA) of the station working on the primary link in the first multilink in response to the PPDU.
- the termination time point may also be the time point at which the station working on the primary link in the first multi-link responds to the BA of the PPDU plus the time point at which a short interframe space (SIFS) is added.
- the end time point may also be the end time point of the transmission opportunity (transmit opportunity, TXOP) to which the PPDU belongs.
- FIG. 12 is a schematic diagram of a data transmission provided by an embodiment of the present application.
- the first multilink device receives the PPDU sent by the second multilink device on the main link.
- time points there are 3 time points (the vertical solid line in the figure), from left to right are a certain time point in the physical layer preamble, determine the RA and the work in the MAC frame header in the PPDU
- any one of these time points can be used as the starting time point of the time when sending is prohibited.
- the first multi-link device replies to the second multi-link device on the main link with a block confirmation BA.
- the transmission prohibited time shown in FIG. 12 is to determine that the RA in the MAC frame header in the PPDU matches the address of the station working on the main link as the starting time point, and the block confirmation of the response PPDU
- the end time point of BA is regarded as the end time point.
- multiple primary links may participate in the secondary link to set the transmission prohibition time, and one primary link corresponds to a transmission prohibition time.
- the start time point is the minimum start value in the multiple transmission prohibited times corresponding to the multiple main links
- the end time point is the maximum end value in the multiple transmission prohibited times corresponding to the multiple main links .
- the time length is the maximum value of the multiple time lengths corresponding to the multiple main links. Therefore, it is ensured that the prohibited transmission time set for the secondary link can meet the requirements of multiple primary links at the same time, and will not cause interference and competition conflicts on all primary links.
- the sending prohibition time can be set for each primary link according to the above-mentioned method of setting the start time point and the end time point. Record multiple prohibited sending time.
- the first multi-link station sets the sending prohibition time corresponding to the primary link on the secondary link, so as to more finely prohibit sending time setting for the realization of each primary link.
- the sending of data on the secondary link is prohibited by setting the sending prohibition time, so as to avoid the simultaneous sending and receiving of data on adjacent links, thereby Reduce the interference and contention conflict of the main link.
- FIG. 13 is a schematic structural diagram of a first multi-link communication device provided by an embodiment of the present application.
- the first multi-link communication device may be used to implement the first multi-link communication in any of the foregoing embodiments.
- the first multi-link communication apparatus may include a processing module 1301, a sending module 1302, and a receiving module 1303.
- the sending module 1302 and the receiving module 1303 respectively correspond to a baseband circuit and a radio frequency circuit included in the first multi-link device.
- the detailed description of each module is as follows.
- the processing module 1301 is configured to generate a wireless frame through a first station, where the first station is one of a plurality of stations included in the first multi-link device, and the first multi-link device includes working on the first link The first station on the network and the second station working on the second link;
- the sending module 1302 is configured to send the wireless frame on the first link through the first station, where the wireless frame includes capability indication information, and the capability indication information is used to indicate the first station and the second station. Whether the second site supports simultaneous sending and receiving operations.
- processing module 1301 and the sending module 1302 may be modules in the above-mentioned first station, and the content and functions of the elements or fields included in the radio frame may refer to the description of the foregoing method embodiment, which will not be repeated here.
- the receiving module 1303 is configured to receive the physical protocol data unit PPDU sent by the second multi-link device on the main link, and there are multiple links between the first multi-link device and the second multi-link device ,
- the multiple links include the primary link and a secondary link adjacent to the primary link;
- the processing module 1301 is configured to set a transmission prohibition time, where the transmission prohibition time is used to indicate a time when a station in the first multilink device working on the secondary link is prohibited from sending data.
- the method for determining and setting the sending prohibited time can refer to the description of the foregoing method embodiment, which will not be repeated here.
- each module may also refer to the corresponding description of the method embodiment shown in FIG. 3 and FIG. 11 to execute the method and function performed by the first multi-link device in the foregoing embodiment.
- FIG. 14 is a schematic structural diagram of a second multi-link communication device provided by an embodiment of the present application.
- the second multi-link communication device may be used to implement the second multi-link communication in any of the foregoing embodiments.
- the second multi-link communication device may include a receiving module 1401 and a processing module 1402.
- the receiving module 1401 and the processing module 1402 may be modules in the foregoing third station, and the receiving module 1401 corresponds to a baseband circuit included in the third station.
- the detailed description of each module is as follows.
- the receiving module 1401 is configured to receive, through a third station, a radio frame sent by a first station among a plurality of stations included in the first multi-link device, the first multi-link device including working on the first link The first station and the second station working on the second link;
- the wireless frame includes capability indication information, and the capability indication information is used to indicate whether the first station and the second station support simultaneous transceiver operations;
- the processing module 1402 is configured to determine whether the first station and the second station support simultaneous sending and receiving operations according to the capability indication information through a third station.
- each module can also refer to the corresponding description of the method embodiment shown in FIG. 3 and FIG. 11 to execute the method and function performed by the second multi-link device in the foregoing embodiment.
- FIG. 15 is a schematic structural diagram of a first multi-link device according to an embodiment of the present application.
- the first multi-link device may include: at least one processor 1501, at least one communication interface 1502, at least one memory 1503, and at least one communication bus 1504.
- the processor 1501 may be a central processing unit, a general-purpose processor, a digital signal processor, an application specific integrated circuit, a field programmable gate array or other programmable logic devices, transistor logic devices, hardware components, or any combination thereof. It can implement or execute various exemplary logical blocks, modules and circuits described in conjunction with the disclosure of this application.
- the processor may also be a combination that implements computing functions, for example, a combination of one or more microprocessors, a combination of a digital signal processor and a microprocessor, and so on.
- the communication bus 1504 may be a standard PCI bus for interconnecting peripheral components or an extended industry standard structure EISA bus. The bus can be divided into address bus, data bus, control bus, etc.
- the communication bus 1504 is used to implement connection and communication between these components. Among them, the communication interface 1502 of the device in the embodiment of the present application is used for signaling or data communication with other node devices.
- the memory 1503 may include volatile memory, such as nonvolatile random access memory (NVRAM), phase change RAM (PRAM), magnetoresistive random access memory (magetoresistive).
- RAM, MRAM), etc. can also include non-volatile memory, such as at least one disk storage device, electrically erasable programmable read-only memory (electrically erasable programmable read-only memory, EEPROM), flash memory devices, such as reverse or flash memory (NOR flash memory) or NAND flash memory (NAND flash memory), semiconductor devices, such as solid state disks (SSD), etc.
- the memory 1503 may also be at least one storage device located far away from the foregoing processor 1501.
- the memory 1503 may also store a group of program codes.
- the processor 1501 may also execute a program stored in the memory 1503.
- the processor 1501 is configured to perform the following operations:
- a radio frame is generated by a first station, and the first station is one of a plurality of stations included in a first multi-link device, and the first multi-link device includes the first station working on the first link. Station and the second station working on the second link;
- the wireless frame is sent on the first link through the first station, where the wireless frame includes capability indication information, and the capability indication information is used to indicate whether the first station and the second station support Simultaneously send and receive operations.
- processor 1501 is further configured to perform the following operations:
- the physical protocol data unit PPDU sent by the second multi-link device is received on the main link.
- the first multi-link device and the second multi-link device include multiple links, and the multiple links
- a path includes the primary link and a secondary link adjacent to the primary link;
- the transmission prohibition time is used to indicate a time during which a station in the first multilink device working on the secondary link is prohibited from sending data.
- the method for determining and setting the sending prohibited time can refer to the description of the foregoing method embodiment, which will not be repeated here.
- processor may also cooperate with the memory and the communication interface to perform the operation of the first multi-link device in the above application embodiment.
- FIG. 16 is a schematic structural diagram of a second multi-link device according to an embodiment of the present application.
- the second multi-link device may include: at least one processor 1601, at least one communication interface 1602, at least one memory 1603, and at least one communication bus 1604.
- the processor 1601 may be various types of processors mentioned above.
- the communication bus 1604 may be a standard PCI bus for interconnecting peripheral components or an extended industry standard structure EISA bus. The bus can be divided into address bus, data bus, control bus, etc. For ease of presentation, only one thick line is used in FIG. 16, but it does not mean that there is only one bus or one type of bus.
- the communication bus 1604 is used to implement connection and communication between these components. Among them, the communication interface 1602 of the device in the embodiment of the present application is used for signaling or data communication with other node devices.
- the memory 1603 may be various types of memories mentioned above. Optionally, the memory 1603 may also be at least one storage device located far away from the foregoing processor 1601.
- the memory 1603 stores a set of program codes, and the processor 1601 executes the programs in the memory 1603.
- a radio frame sent by a first station among a plurality of stations included in a first multi-link device is received through a third station, and the first multi-link device includes the first station working on the first link And the second station working on the second link;
- the wireless frame includes capability indication information, and the capability indication information is used to indicate whether the first station and the second station support simultaneous transceiver operations;
- processor may also cooperate with the memory and the communication interface to perform the operation of the second multi-link device in the above application embodiment.
- the embodiment of the present application also provides a chip system
- the chip system includes a processor, which is used to support the first multi-link device or the second multi-link device to realize the functions involved in any one of the above embodiments, such as generating Or process the data and/or information involved in the above methods.
- the chip system may further include a memory, and the memory is used for necessary program instructions and data of the first multi-link device or the second multi-link device.
- the chip system may be composed of chips, or may include chips and other discrete devices.
- the embodiment of the present application also provides a processor, which is configured to be coupled with a memory and used to execute any method and function related to the first multi-link device or the second multi-link device in any of the foregoing embodiments. .
- the embodiment of the present application also provides a computer program product containing instructions, which when running on a computer, causes the computer to execute any one of the foregoing embodiments involving the first multi-link device or the second multi-link device Any method and function of.
- the embodiments of the present application also provide a device for executing any method and function related to the first multilink device or the second multilink device in any of the foregoing embodiments.
- An embodiment of the present application also provides a wireless communication system, which includes at least one first multilink device and at least one second multilink device involved in any of the foregoing embodiments.
- the computer program product includes one or more computer instructions.
- the computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable devices.
- the computer instructions may be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another computer-readable storage medium. For example, the computer instructions may be transmitted from a website, computer, server, or data center.
- the computer-readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server or a data center integrated with one or more available media.
- the usable medium may be a magnetic medium (for example, a floppy disk, a hard disk, and a magnetic tape), an optical medium (for example, a DVD), or a semiconductor medium (for example, a solid state disk (SSD)).
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Abstract
Description
Claims (27)
- 一种多链路通信方法,其特征在于,包括:第一多链路设备生成无线帧,所述第一多链路设备包含工作在第一链路上的第一站点和工作在第二链路上的第二站点;所述第一多链路设备在所述第一链路上发送所述无线帧,所述无线帧包括能力指示信息,所述能力指示信息用于指示所述第一站点和所述第二站点是否支持同时收发操作。
- 一种多链路通信方法,其特征在于,包括:第三站点接收由第一多链路设备发送的无线帧,所述第一多链路设备包含工作在第一链路上的第一站点和工作在第二链路上的第二站点;其中,所述无线帧包括能力指示信息,所述能力指示信息用于指示所述第一站点和所述第二站点是否支持同时收发操作;所述第三站点根据所述能力指示信息确定所述第一站点和所述第二站点是否支持同时收发操作。
- 如权利要求1或2所述的方法,其特征在于,所述能力指示信息包括第一指示信息,所述第一指示信息用于指示所述第一站点和所述第二站点是否支持同时收发操作,所述同时收发操作包括第一操作和第二操作,所述第一操作为在所述第一站点发送时所述第二站点接收,所述第二操作为在所述第一站点接收时所述第二站点发送。
- 如权利要求3所述的方法,其特征在于,所述第一指示信息包括1bit信息,所述1bit信息用于指示所述第一站点和所述第二站点是否同时支持所述第一操作和所述第二操作。
- 如权利要求3所述的方法,其特征在于,所述第一指示信息包括2bits信息,所述2bits信息中的第一个bit信息用于指示所述第一站点和所述第二站点是否支持所述第一操作,所述2bits信息中的第二个bit信息用于指示所述第一站点和所述第二站点是否支持所述第二操作。
- 如权利要求3-5任一项所述的方法,其特征在于,所述第一指示信息包括多个1bit或多个2bits,一个所述1bit或一个所述2bits用于指示在是否支持所述第一站点采用第一带宽和所述第二站点采用第二带宽同时收发操作。
- 如权利要求1或2所述的方法,其特征在于,所述能力指示信息包括第二指示信息,所述第二指示信息包括门限值,所述门限值用于指示支持同时收发操作的两条链路的工作频点之差的最小值。
- 如权利要求1或2所述的方法,其特征在于,所述能力指示信息包括第一指示信 息和第二指示信息,所述第二指示信息包括门限值,所述第一指示信息用于指示当所述第一站点的工作频点与所述第二站点的工作频点之间的差值大于所述门限值时,所述第一站点和所述第二站点是否支持同时收发操作。
- 如权利要求1-8任一项所述的方法,其特征在于,所述第一多链路设备包括至少一个多链路逻辑实体,一个所述多链路逻辑实体包括至少一个站点,所述能力指示信息包括第三指示信息,所述第三指示信息用于指示所述第一站点和所述第二站点是否处于同一个所述多链路逻辑实体中。
- 如权利要求1-9任一项所述的方法,其特征在于,所述无线帧包括信息元素,所述能力指示信息携带在所述信息元素中,所述信息元素包括所述第二链路的标识信息,所述信息元素包括多频段元素、简化的邻居节点报告元素或邻居节点报告元素。
- 如权利要求1-9任一项所述的方法,其特征在于,所述无线帧包括收发能力信息元素,所述收发能力信息元素包括元素标识、元素长度以及所述能力指示信息,所述能力指示信息包括所述第一链路的链路标识和所述第二链路的链路标识。
- 一种第一多链路通信装置,其特征在于,应用于第一站点侧,所述多链路通信装置包括:处理模块,用于生成无线帧,所述第一多链路设备包含工作在第一链路上的第一站点和工作在第二链路上的第二站点;发送模块,用于在所述第一链路上发送所述无线帧,所述无线帧包括能力指示信息,所述能力指示信息用于指示所述第一站点和所述第二站点是否支持同时收发操作。
- 一种第二多链路通信装置,其特征在于,包括:接收模块,用于接收由第一多链路设备发送的无线帧,所述第一多链路设备包含工作在第一链路上的第一站点和工作在第二链路上的第二站点;其中,所述无线帧包括能力指示信息,所述能力指示信息用于指示所述第一站点和所述第二站点是否支持同时收发操作;处理模块,用于通过所述第三站点根据所述能力指示信息确定所述第一站点和所述第二站点是否支持同时收发操作。
- 如权利要求12或13所述的装置,其特征在于,所述能力指示信息包括第一指示信息,所述第一指示信息用于指示所述第一站点和所述第二站点是否支持同时收发操作,所述同时收发操作包括第一操作和第二操作,所述第一操作为在所述第一站点发送时所述第二站点接收,所述第二操作为在所述第一站点接收时所述第二站点发送。
- 如权利要求14所述的装置,其特征在于,所述第一指示信息包括1bit信息,所述1bit信息用于指示所述第一站点和所述第二站点是否同时支持所述第一操作和所述第 二操作。
- 如权利要求14所述的装置,其特征在于,所述第一指示信息包括2bits信息,所述2bits信息中的第一个bit信息用于指示所述第一站点和所述第二站点是否支持所述第一操作,所述2bits信息中的第二个bit信息用于指示所述第一站点和所述第二站点是否支持所述第二操作。
- 如权利要求14-16任一项所述的装置,其特征在于,所述第一指示信息包括多个1bit或多个2bits,一个所述1bit或一个所述2bits用于指示在是否支持所述第一站点采用第一带宽和所述第二站点采用第二带宽同时收发操作。
- 如权利要求12或13所述的装置,其特征在于,所述能力指示信息包括第二指示信息,所述第二指示信息包括门限值,所述门限值用于指示支持同时收发操作的两条链路的工作频点之差的最小值。
- 如权利要求12或13所述的装置,其特征在于,所述能力指示信息包括第一指示信息和第二指示信息,所述第二指示信息包括门限值,所述第一指示信息用于指示当所述第一站点的工作频点与所述第二站点的工作频点之间的差值大于所述门限值时,所述第一站点和所述第二站点是否支持同时收发操作。
- 如权利要求12-19任一项所述的装置,其特征在于,所述第一多链路设备包括至少一个多链路逻辑实体,一个所述多链路逻辑实体包括至少一个站点,所述能力指示信息包括第三指示信息,所述第三指示信息用于指示所述第一站点和所述第二站点是否处于同一个所述多链路逻辑实体中。
- 如权利要求12-20任一项所述的装置,其特征在于,所述无线帧包括信息元素,所述能力指示信息携带在所述信息元素中,所述信息元素包括所述第二链路的标识信息,所述信息元素包括多频段元素、简化的邻居节点报告元素或邻居节点报告元素。
- 如权利要求12-20任一项所述的装置,其特征在于,所述无线帧包括收发能力信息元素,所述收发能力信息元素包括元素标识、元素长度以及所述能力指示信息,所述能力指示信息包括所述第一链路的链路标识和所述第二链路的链路标识。
- 一种计算机可读存储介质,其特征在于,用于存储指令,当所述指令在计算机上运行时,使所述计算机执行权利要求1至11中任一项所述的方法。
- 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一个或多个计算机指令,当所述计算机指令在计算机上运行时,使所述计算机执行权利要求1至11中任一项所述的方法。
- 一种装置,其特征在于,包括一个或多个处理器,以及,输入/输出接口,所述输入/输出接口用于负责所述装置的信息或信令输入和输出,所述一个或多个处理电路用于执行指令以实现权利要求1至11中任一项所述的方法。
- 一种装置,其特征在于,包括处理器和存储器,所述存储器用于存储指令,所述处理器运行所述指令以使得所述装置执行权利要求1至11中任一项所述的方法。
- 一种装置,其特征在于,用于实现权利要求1至11中任一项所述的方法。
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Publication number | Priority date | Publication date | Assignee | Title |
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CN112821996A (zh) * | 2019-11-15 | 2021-05-18 | 华为技术有限公司 | 一种链路标识和收发能力指示方法及相关设备 |
US11943701B2 (en) * | 2020-03-03 | 2024-03-26 | Intel Corporation | Neighbor report for an access point multi-link device |
US20210289575A1 (en) * | 2020-03-11 | 2021-09-16 | Qualcomm Incorporated | Transmission opportunity handling for multi-link communications |
WO2022151486A1 (zh) * | 2021-01-18 | 2022-07-21 | 北京小米移动软件有限公司 | 通信方法和通信设备 |
CN112911728B (zh) * | 2021-01-29 | 2023-05-02 | 极米科技股份有限公司 | 隧道直接链路建立中搜索对等终端的方法、终端及介质 |
WO2022198596A1 (zh) * | 2021-03-25 | 2022-09-29 | 北京小米移动软件有限公司 | 多连接下的通信方法和通信装置 |
WO2022226841A1 (zh) * | 2021-04-28 | 2022-11-03 | 北京小米移动软件有限公司 | 多连接下的通信方法和通信装置 |
CN115276894A (zh) * | 2021-04-30 | 2022-11-01 | 华为技术有限公司 | 非同时收发能力的指示方法、装置及系统 |
CN115334617B (zh) * | 2021-05-11 | 2024-06-14 | 极米科技股份有限公司 | 通过建立接入点进行数据传输的方法、装置及存储介质 |
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Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104067554A (zh) * | 2011-11-25 | 2014-09-24 | 株式会社泛泰 | 发送/接收关于处于频带间tdd发送方案的用户终端的发送模式信息的方法和装置 |
CN104980988A (zh) * | 2014-04-03 | 2015-10-14 | 上海宽带技术及应用工程研究中心 | 多链路聚合的无线通信系统及方法 |
CN105556909A (zh) * | 2013-09-16 | 2016-05-04 | 高通股份有限公司 | 用于无线网络上的全双工通信的系统和方法 |
US20170171060A1 (en) * | 2015-12-11 | 2017-06-15 | Qualcomm Incorporated | Coordination of multiple routes for a single ip connection |
CN109600856A (zh) * | 2017-10-02 | 2019-04-09 | 马维尔国际贸易有限公司 | 用于具有双工媒体访问控制的多用户操作的系统和方法 |
US20190335454A1 (en) * | 2018-07-11 | 2019-10-31 | Po-Kai Huang | Methods for multi-link setup between a multi-link access point (ap) logical entity and a multi-link non-ap logical entity |
CN111385828A (zh) * | 2020-05-19 | 2020-07-07 | 成都极米科技股份有限公司 | 无线局域网收发数据的方法、终端和系统及网络接入设备 |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9197393B2 (en) * | 2012-11-27 | 2015-11-24 | Intel Corporation | Multi-transceiver wireless communication device and methods for adaptive multi-band communication |
US9288139B2 (en) * | 2014-04-02 | 2016-03-15 | Qualcomm Incorporated | Methods for selection of link aggregation capable access points |
CN111836404B (zh) * | 2015-09-29 | 2024-04-12 | 华为技术有限公司 | 端到端通信链路建立方法、接入点及站点 |
CN108011688B (zh) * | 2016-11-01 | 2020-07-07 | 华为技术有限公司 | 一种传输多站点控制帧的方法、接入点及系统 |
US10959153B2 (en) * | 2017-09-11 | 2021-03-23 | Qualcomm Incorporated | Techniques for multi-link aggregation signaling |
US11329871B2 (en) * | 2018-02-28 | 2022-05-10 | Qualcomm Incorporated | Conditional inheritance in management frame for multi-link aggregation |
-
2019
- 2019-07-12 CN CN202410253789.5A patent/CN118158793A/zh active Pending
- 2019-07-12 CN CN201910634696.6A patent/CN112218363B/zh active Active
- 2019-07-12 CN CN202410232773.6A patent/CN118234062A/zh active Pending
- 2019-07-12 CN CN202310201180.9A patent/CN116234019B/zh active Active
- 2019-07-12 CN CN202310201032.7A patent/CN116782420A/zh active Pending
-
2020
- 2020-07-06 WO PCT/CN2020/100375 patent/WO2021008399A1/zh unknown
- 2020-07-06 KR KR1020227003261A patent/KR20220028050A/ko active Search and Examination
- 2020-07-06 EP EP20839626.7A patent/EP3993520B1/en active Active
- 2020-07-06 JP JP2022501289A patent/JP7507846B2/ja active Active
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-
2022
- 2022-01-10 US US17/572,461 patent/US20220338285A1/en active Pending
-
2023
- 2023-10-05 JP JP2023173771A patent/JP2023178343A/ja active Pending
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104067554A (zh) * | 2011-11-25 | 2014-09-24 | 株式会社泛泰 | 发送/接收关于处于频带间tdd发送方案的用户终端的发送模式信息的方法和装置 |
CN105556909A (zh) * | 2013-09-16 | 2016-05-04 | 高通股份有限公司 | 用于无线网络上的全双工通信的系统和方法 |
CN104980988A (zh) * | 2014-04-03 | 2015-10-14 | 上海宽带技术及应用工程研究中心 | 多链路聚合的无线通信系统及方法 |
US20170171060A1 (en) * | 2015-12-11 | 2017-06-15 | Qualcomm Incorporated | Coordination of multiple routes for a single ip connection |
CN109600856A (zh) * | 2017-10-02 | 2019-04-09 | 马维尔国际贸易有限公司 | 用于具有双工媒体访问控制的多用户操作的系统和方法 |
US20190335454A1 (en) * | 2018-07-11 | 2019-10-31 | Po-Kai Huang | Methods for multi-link setup between a multi-link access point (ap) logical entity and a multi-link non-ap logical entity |
CN111385828A (zh) * | 2020-05-19 | 2020-07-07 | 成都极米科技股份有限公司 | 无线局域网收发数据的方法、终端和系统及网络接入设备 |
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