WO2020215953A1 - 数据传输方法及装置 - Google Patents
数据传输方法及装置 Download PDFInfo
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- WO2020215953A1 WO2020215953A1 PCT/CN2020/080804 CN2020080804W WO2020215953A1 WO 2020215953 A1 WO2020215953 A1 WO 2020215953A1 CN 2020080804 W CN2020080804 W CN 2020080804W WO 2020215953 A1 WO2020215953 A1 WO 2020215953A1
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- 238000000034 method Methods 0.000 title claims abstract description 51
- 238000012790 confirmation Methods 0.000 claims description 13
- 238000004590 computer program Methods 0.000 claims description 8
- 238000013461 design Methods 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 12
- 101100520018 Ceratodon purpureus PHY2 gene Proteins 0.000 description 2
- 101150005660 PHY1 gene Proteins 0.000 description 2
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/16—Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/08—Configuration management of networks or network elements
- H04L41/0803—Configuration setting
- H04L41/0806—Configuration setting for initial configuration or provisioning, e.g. plug-and-play
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/08—Configuration management of networks or network elements
- H04L41/0803—Configuration setting
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
- H04L5/0055—Physical resource allocation for ACK/NACK
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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]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W84/00—Network topologies
- H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
- H04W84/10—Small scale networks; Flat hierarchical networks
- H04W84/12—WLAN [Wireless Local Area Networks]
Definitions
- the present invention relates to the field of communications, in particular to a data transmission method and device.
- MAC Media Access Control
- the embodiment of the present invention provides a data transmission method suitable for an access point.
- the transmission method is used in a multi-link Wi-Fi system.
- the multi-link Wi-Fi system includes a plurality of transmission links.
- Each of the transmission links includes a queuing queue for determining the order of sending data frames, and the transmission method includes: determining that some of the multiple transmission links are uplink transmission links or downlink transmission links, and the rest are ordinary transmissions Link, the ordinary transmission link is used to transmit uplink data frames or downlink data frames, the uplink transmission link is only used to transmit uplink data frames, and the downlink transmission link is only used to transmit downlink data frames; The corresponding transmission link of the transmitted data frame; and when the normal transmission link or the downlink transmission link obtains the transmission opportunity, respectively transmit the data frame at the top of its queue.
- the determining that a part of the multiple transmission links is an uplink transmission link or a downlink transmission link includes: the access point configures the part of the multiple transmission links as an uplink transmission link and a downlink transmission link. Transmission link.
- the transmission method further includes: the access point broadcasts the uplink transmission link and the downlink transmission link. Index information.
- the determining that a part of the multiple transmission links is an uplink transmission link or a downlink transmission link includes: the access point configures the part of the multiple transmission links as the uplink by default. Transmission link and downlink transmission link.
- the determining that a part of the multiple transmission links is an uplink transmission link or a downlink transmission link includes: the access point sets the part of the multiple transmission links according to the bandwidth of the transmission link It is the uplink transmission link or the downlink transmission link.
- determining the corresponding transmission link of the data frame to be transmitted includes: the access point sets the corresponding transmission link of the data frame to be transmitted according to the length of the data frame to be transmitted.
- the acknowledgement information about the data frame sent by the station is received.
- the embodiment of the present invention provides a data transmission method suitable for stations.
- the transmission method is used in a multi-link Wi-Fi system.
- the multi-link Wi-Fi system includes multiple transmission links.
- Each of the transmission links includes a queuing queue for determining the order of sending data frames, and the transmission method includes: determining that the multiple transmission links are divided into a normal transmission link, an uplink transmission link, and a downlink transmission link.
- the ordinary transmission link is used to transmit uplink data frames or downlink data frames, the uplink transmission link is only used to transmit uplink data frames, and the downlink transmission link is only used to transmit downlink data frames; the data frame to be transmitted is determined Corresponding to the transmission link; and when the normal transmission link or the uplink transmission link obtains a transmission opportunity, respectively transmit the data frame at the top of its queue.
- the determining that a part of the multiple transmission links is an uplink transmission link or a downlink transmission link includes: receiving index information of the uplink transmission link or the downlink transmission link; The index information configures a part of the multiple transmission links as an uplink transmission link or a downlink transmission link.
- the determining that a part of the multiple transmission links is an uplink transmission link or a downlink transmission link includes: configuring a part of the multiple transmission links as the uplink transmission in a default manner Link or the downlink transmission link.
- determining the corresponding transmission link of the data frame to be transmitted includes: determining the corresponding transmission link of the data frame to be transmitted according to the length of the data frame to be transmitted.
- the embodiment of the present invention provides a data transmission device, which is suitable for an access point side, and includes a memory and a processor, the memory stores a computer program that can run on the processor, and the processor executes the The program implements the steps in the data transmission method.
- the embodiment of the present invention provides a data transmission device, which is suitable for a site side, and includes a memory and a processor.
- the memory stores a computer program that can run on the processor. When the processor executes the program, Implement the steps in the data transmission method.
- the transmission method includes: determining that some of the multiple transmission links are uplink transmission links or downlink transmission links, and the rest are ordinary transmission links, and the ordinary transmission links are used for Transmitting an uplink data frame or a downlink data frame, the uplink transmission link is only used for transmitting uplink data frames, and the downlink transmission link is only used for transmitting downlink data frames; determining the corresponding transmission link of the data frame to be transmitted; and When the ordinary transmission link or the downlink transmission link obtains a transmission opportunity, the data frame at the top of the queue is respectively transmitted.
- the technical scheme of the present invention is beneficial to the reuse of channel space by configuring the uplink transmission link and the downlink transmission link, can improve the transmission efficiency of the data frame, and has better compatibility with the existing system and lower design complexity.
- FIG. 1 is a schematic diagram of a multi-link Wi-Fi system provided by an embodiment of the present invention
- Fig. 2 is a schematic diagram of the queuing queue during data transmission in the Wi-Fi system shown in Fig. 1;
- FIG. 3 is a schematic flowchart of a data transmission method provided by an embodiment of the present invention.
- FIG. 4 is a schematic diagram of the queuing queue in the data transmission method shown in FIG. 3;
- FIG. 5 is a schematic flowchart of a data transmission method provided by an embodiment of the present invention.
- FIG. 6 is a schematic diagram of the queuing queue in the data transmission method shown in FIG. 5;
- FIG. 7 is a schematic structural diagram of a data transmission device according to an embodiment of the present invention.
- FIG. 8 is a schematic structural diagram of a data transmission device provided by an embodiment of the present invention.
- FIG. 1 is a schematic diagram of a multi-link Wi-Fi system provided by an embodiment of the present invention.
- the multi-link Wi-Fi system may include a station (Station, STA), an access point (Access Point, AP), and multiple transmission links, where the multiple transmission links are located at the station and Data frames are transmitted between the access points.
- the multi-link Wi-Fi system includes a first transmission link CH1 and a second transmission link CH2.
- the first transmission link CH1 and the second transmission link CH2 may occupy different frequency band resources to implement data transmission.
- the first transmission link CH1 may occupy a frequency band with a center frequency of 2 GHz
- the second transmission link CH2 may occupy a frequency band with a center frequency of 5 GHz.
- the first transmission link CH1 and the second transmission link CH2 may also occupy the same frequency band to implement data transmission.
- the shared frequency band is relatively wide so that two transmission links can be used for data transmission at the same time, or the two transmission links can also be used for data transmission in a time division multiplexing manner.
- data frames to be transmitted can be queued into the queuing queue of the first transmission link CH1 and the queuing queue of the second transmission link CH2 respectively.
- the data frames to be transmitted can be respectively queued into queuing queues of different transmission links in the form of indexes.
- the network layer includes the MAC layer (Common MAC), and all of them include the first sub-MAC layer LMAC1 and the second sub-MAC under the MAC layer.
- the first sub-MAC layer LMAC1 and the first physical layer PHY1 are suitable for enabling stations or access points to transmit data on the first transmission link CH1, and the second sub-MAC layer LMAC2 and all
- the second physical layer PHY2 is suitable for enabling stations or access points to transmit data on the second transmission link CH2.
- the multi-link Wi-Fi system may include multiple transmission links, so the multi-link Wi-Fi system may include multiple sub-MAC layers and corresponding multiple physical layers.
- FIG. 2 is a schematic diagram of the queuing queue when the Wi-Fi system shown in FIG. 1 performs data transmission.
- the data frame to be transmitted includes: data frame A, data frame B, data frame C, data frame D, and data frame E.
- the data frame to be transmitted will be put into the queuing queue of each transmission link, and the data frame to be transmitted can be transmitted from any transmission link.
- FIG. 3 is a schematic flowchart of a data transmission method according to an embodiment of the present invention
- FIG. 4 is a schematic diagram of queuing queues in the data transmission method shown in FIG. 3.
- the multi-link Wi-Fi system includes a first transmission link (CH1), a second transmission link (CH2), and a third transmission link (CH3) And the fourth transmission link (CH4),
- FIG. 4 shows the queuing queue of the above transmission link. This solution is applicable to the access point side.
- the transmission method is used in a multi-link Wi-Fi system.
- the multi-link Wi-Fi system includes a plurality of transmission links, and each of the transmission links includes a queue for determining the order of sending data frames .
- the normal transmission link is used to transmit uplink data frames or downlink data frames
- the uplink transmission link is only used to transmit uplink data frames
- the downlink transmission link is only used to transmit downlink data frames.
- the access point may configure parts of the multiple transmission links as an uplink transmission link and a downlink transmission link, and broadcast index information of the uplink transmission link and the downlink transmission link. Therefore, the access point can thereby determine which transmission link is the uplink transmission link or the downlink transmission link.
- the access point may also configure part of the multiple transmission links as an uplink transmission link and a downlink transmission link in a default manner.
- the third transmission link is configured as a downlink transmission link
- the fourth transmission link is configured as an uplink transmission link
- the first transmission link and the second transmission link are The transmission link is an ordinary transmission link.
- the access point may set a part of the multiple transmission links as an uplink transmission link or a downlink transmission link according to the bandwidth of the transmission link. Specifically, part of the transmission link with a larger bandwidth may be configured as a downlink transmission link, and a part of the link with a smaller bandwidth may be configured as an uplink transmission link.
- the access point may determine the transmission link corresponding to the data frame to be transmitted, And add the data frame to be transmitted into the queuing queue of the corresponding transmission link.
- the data to be transmitted on the side of the access point may be transmitted on the normal transmission link or the downlink transmission link.
- data frame A can be transmitted on the normal transmission link or the downlink transmission link (CH3)
- data frame B, data frame C, data frame D, and data frame E can be Transmission on the common transmission link
- the data frame G and data frame H can be transmitted on the downlink transmission link
- the corresponding transmission link of the data frame to be transmitted can be set according to the length of the data frame to be transmitted.
- the first data frame threshold can be set. If the length of the data frame to be transmitted is greater than the first data frame threshold, the access point transmits the data frame on the downlink transmission link; otherwise, the data frame is transmitted on the normal transmission link. The data frame is transmitted on.
- the access point transmits the data frame A on the first transmission link. After the data frame A starts to be transmitted, the downlink When the transmission link (CH3) obtains a transmission opportunity, the data frame G is transmitted on the downlink transmission link.
- CH3 transmission link
- the access point When the access point finishes transmitting the data frame, it will receive an acknowledgement message (ACK) from the access point.
- ACK acknowledgement message
- the access point may receive the confirmation information about the data frame sent by the station on the downlink transmission link that transmits the data frame. For example, after the access point transmits the data frame A on the downlink transmission link, it may receive an acknowledgement message on the downlink transmission link.
- the access point may receive the confirmation information about the data frame sent by the station on the uplink transmission link. For example, after the access point transmits the data frame A on the downlink transmission link, it may receive an acknowledgement message on the uplink transmission link.
- the above-mentioned design can maintain compatibility with the original Wi-Fi system while also having a certain degree of flexibility.
- FIG. 5 is a schematic flowchart of a data transmission method according to an embodiment of the present invention
- FIG. 6 is a schematic diagram of queuing queues in the data transmission method shown in FIG.
- the multi-link Wi-Fi system includes a first transmission link (CH1), a second transmission link (CH2), and a third transmission link (CH3) And the fourth transmission link (CH4),
- FIG. 6 shows the queuing queue of the above transmission link. This solution is applicable to the site side.
- the transmission method is used in a multi-link Wi-Fi system.
- the multi-link Wi-Fi system includes a plurality of transmission links, and each of the transmission links includes a queue for determining the order of sending data frames .
- the multiple transmission links are divided into a normal transmission link, an uplink transmission link, and a downlink transmission link.
- the normal transmission link is used to transmit uplink data frames or downlink data frames
- the uplink transmission link is only used to transmit uplink data frames
- the downlink transmission link is only used to transmit downlink data frames.
- the station may receive index information of the uplink transmission link or the downlink transmission link, and configure part of the multiple transmission links as the uplink transmission link or according to the index information. Downlink transmission link.
- the station may also configure part of the multiple transmission links as an uplink transmission link and a downlink transmission link in a default manner.
- the third transmission link is configured as a downlink transmission link
- the fourth transmission link is configured as an uplink transmission link
- the first transmission link and the second transmission link are configured as an uplink transmission link.
- the transmission link is an ordinary transmission link.
- the station may determine the transmission link corresponding to the data frame to be transmitted, and The data frame to be transmitted is added to the queuing queue of the corresponding transmission link.
- the data to be transmitted on the station side may be transmitted on the normal transmission link or the downlink transmission link.
- data frame C can be transmitted on the normal transmission link or the uplink transmission link (CH4); data frame A, data frame B, data frame D, and data frame E can be transmitted on all The transmission is performed on the ordinary transmission link; the data frame G and the data frame K can be transmitted on the uplink transmission link.
- the corresponding transmission link of the data frame to be transmitted may be determined according to the length of the data frame to be transmitted. Specifically, a second data frame threshold can be set. If the length of the data frame to be transmitted is less than the second data frame threshold, the station transmits the data frame on the uplink transmission link, otherwise, transmits on the ordinary transmission link Data Frame.
- the station transmits the data frame A on the first transmission link. After the data frame A starts to be transmitted, the uplink transmission link When the channel (CH4) obtains the transmission opportunity, the data frame C is transmitted on the uplink transmission link.
- the station When the station finishes transmitting the data frame, it will receive a confirmation message from the access point.
- the station may receive the confirmation information about the data frame sent by the access point on the uplink transmission link that transmits the data frame. For example, after transmitting the data frame C on the uplink transmission link, the station may receive the confirmation message on the uplink transmission link.
- the station may receive the confirmation information about the data frame sent by the access point on the downlink transmission link. For example, after transmitting the data frame C on the uplink transmission link, the station may receive the confirmation message on the downlink transmission link.
- FIG. 7 is a schematic structural diagram of a data transmission device provided by an embodiment of the present invention, and the device is suitable for an access point side.
- the device includes a memory 11 and a processor 12.
- the memory 11 stores a computer program that can run on the processor 12, and the computer program stored in the memory 11 is used to implement the data transmission method.
- the processor 12 implements the steps when executing the program.
- the memory 11 may include: ROM, RAM, magnetic disk or optical disk, etc. Please refer to the above for the steps of the data transmission method, which will not be repeated here.
- FIG. 8 is a schematic structural diagram of a data transmission device provided by an embodiment of the present invention, and the device is suitable for a site side.
- the device includes a memory 21 and a processor 22.
- the memory 21 stores a computer program that can run on the processor 22.
- the computer program stored in the memory 21 is used to implement the data transmission method.
- the processor 22 executes the program, the steps are implemented.
- the memory 21 may include: ROM, RAM, magnetic disk or optical disk, etc. Please refer to the above for the steps of the data transmission method, which will not be repeated here.
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Abstract
一种数据传输方法及装置,所述传输方法包括:确定所述多个传输链路中的部分为上行传输链路或下行传输链路,其余为普通传输链路,所述普通传输链路用于传输上行数据帧或下行数据帧,所述上行传输链路仅用于传输上行数据帧,所述下行传输链路仅用于传输下行数据帧;确定待传输的数据帧的对应传输链路;以及当所述普通传输链路或所述下行传输链路获得传输时机时,分别传输处于其排队队列首位的数据帧。本发明技术方案通过配置上行传输链路以及下行传输链路,可以提升数据帧的传输效率,并与现有系统的兼容性较好,设计复杂度较低。
Description
本申请要求于2019年4月22日提交中国专利局、申请号为201910327189.8、发明名称为“数据传输方法及装置”的中国专利申请的优先权,其全部内容通过引用结合在本申请中。
本发明涉及通信领域,具体涉及一种数据传输方法及装置。
在传统的Wi-Fi系统中,媒体访问控制(Media Access Control,MAC)层与物理层的数量均只有一个。因此,数据帧只能在Wi-Fi系统中的单个传输链路上进行传输。
目前,也出现了一些关于多链路Wi-Fi系统的设计方案,但是,多链路Wi-Fi系统的信道空间利用率以及数据帧的传输效率仍有待提高。
发明内容
本发明实施例提供一种数据传输方法,适用于接入点,所述传输方法用于多链路Wi-Fi系统,所述多链路Wi-Fi系统均包括多个传输链路,每个所述传输链路均包括用于确定发送数据帧顺序的排队队列,所述传输方法包括:确定所述多个传输链路中的部分为上行传输链路或下行传输链路,其余为普通传输链路,所述普通传输链路用于传输上行数据帧或下行数据帧,所述上行传输链路仅用于传输上行数据帧,所述下行传输链路仅用于传输下行数据帧;确定待传输的数据帧的对应传输链路;以及当所述普通传输链路或所述下行传输链路获 得传输时机时,分别传输处于其排队队列首位的数据帧。
可选地,所述确定所述多个传输链路中的部分为上行传输链路或下行传输链路包括:接入点配置所述多个传输链路中的部分为上行传输链路以及下行传输链路。
可选地,所述确定所述多个传输链路中的部分为上行传输链路或下行传输链路后,所述传输方法还包括:接入点广播上行传输链路以及下行传输链路的索引信息。
可选地,所述确定所述多个传输链路中的部分为上行传输链路或下行传输链路包括:接入点通过默认的方式将所述多个传输链路中的部分配置为上行传输链路以及下行传输链路。
可选地,所述确定所述多个传输链路中的部分为上行传输链路或下行传输链路包括:接入点根据传输链路的带宽设定所述多个传输链路中的部分为上行传输链路或下行传输链路。
可选地,确定待传输的数据帧的对应传输链路包括:接入点根据待传输的数据帧的长度设定待传输的数据帧的对应传输链路。
可选地,在传输所述数据帧的下行传输链路上,接收站点发送的关于所述数据帧的确认信息。
可选地,在所述上行传输链路上,接收站点发送的关于所述数据帧的确认信息。
本发明实施例提供了一种数据传输方法,适用于站点,所述传输方法用于多链路Wi-Fi系统,所述多链路Wi-Fi系统均包括多个传输链路,每个所述传输链路均包括用于确定发送数据帧顺序的排队队列,所述传输方法包括:确定所述多个传输链路分为普通传输链路、上行传输链路以及下行传输链路,所述普通传输链路用于传输上行数据帧或下行数据帧,所述上行传输链路仅用于传输上行数据帧,所述下行传输链路仅用于传输下行数据帧;确定待传输的数据帧的对应传输链路;以及当所述普通传输链路或所述上行传输链路获得传输时机 时,分别传输处于其排队队列首位的数据帧。
可选地,所述确定所述多个传输链路中的部分为上行传输链路或下行传输链路包括:接收所述上行传输链路或所述下行传输链路的索引信息;根据所述索引信息将所述多个传输链路中的部分配置为上行传输链路或下行传输链路。
可选地,所述确定所述多个传输链路中的部分为上行传输链路或下行传输链路包括:通过默认的方式将所述多个传输链路中的部分配置为所述上行传输链路或所述下行传输链路。
可选地,确定待传输的数据帧的对应传输链路包括:根据待传输的数据帧的长度确定待传输的数据帧的对应传输链路。
可选地,在传输所述数据帧的上行传输链路上,接收接入点发送的关于所述数据帧的确认信息。
可选地,在所述下行传输链路上,接收接入点发送的关于所述数据帧的确认信息。
本发明实施例提供了一种数据传输装置,适用于接入点侧,包括存储器和处理器,所述存储器上存储有可在所述处理器上运行的计算机程序,所述处理器执行所述程序时实现所述数据传输方法中的步骤。
本发明实施例提供了一种数据传输装置,适用于站点侧,包括存储器和处理器,所述存储器上存储有可在所述处理器上运行的计算机程序,所述处理器执行所述程序时实现所述数据传输方法中的步骤。
与现有技术相比,本发明实施例的技术方案具有以下优点:
在本发明技术方案中,所述传输方法包括:确定所述多个传输链路中的部分为上行传输链路或下行传输链路,其余为普通传输链路,所述普通传输链路用于传输上行数据帧或下行数据帧,所述上行传输链路仅用于传输上行数据帧,所述下行传输链路仅用于传输下行数据 帧;确定待传输的数据帧的对应传输链路;以及当所述普通传输链路或所述下行传输链路获得传输时机时,分别传输处于其排队队列首位的数据帧。本发明技术方案通过配置上行传输链路以及下行传输链路,有利于信道空间的再利用,可以提升数据帧的传输效率,并与现有系统的兼容性较好,设计复杂度较低。
图1是本发明实施例提供的一种多链路Wi-Fi系统的示意图;
图2是图1所示的Wi-Fi系统进行数据传输时的排队队列示意图;
图3是本发明实施例提供的一种数据传输方法的流程示意图;
图4是图3所示的数据传输方法中的排队队列示意图;
图5是本发明实施例提供的一种数据传输方法的流程示意图;
图6是图5所示的数据传输方法中的排队队列示意图;
图7是本发明实施例提供的一种数据传输装置的结构示意图;
图8是本发明实施例提供的一种数据传输装置的结构示意图。
参考图1,图1是本发明实施例提供的一种多链路Wi-Fi系统的示意图。
本发明实施例提供的多链路Wi-Fi系统可以包括站点(Station,STA)、接入点(Access Point,AP)以及多条传输链路,所述多条传输链路在所述站点以及所述接入点间传输数据帧。在图1所示的实施例中,多链路Wi-Fi系统包括第一传输链路CH1以及第二传输链路CH2。
在一些实施例中,所述第一传输链路CH1和所述第二传输链路 CH2可以占据不同的频段资源实现数据传输。例如,所述第一传输链路CH1可以占据中心频率为2GHz的频段,而所述第二传输链路CH2可以占据中心频率为5GHz的频段。在一些实施例中,所述第一传输链路CH1以及所述第二传输链路CH2也可以占据相同的频段实现数据传输。在具体实施中,所共用的频段较宽从而可同时供两个传输链路进行数据传输,或者所述两个传输链路也可以通过时分复用的方式进行数据传输。
在图1所示的实施例中,以站点为例,待传输的数据帧可以被分别排入所述第一传输链路CH1的排队队列和所述第二传输链路CH2的排队队列中。在具体实施中,待传输的数据帧可以以索引的形式被分别排入不同传输链路的排队队列中。
在图1所示的实施例中,对于站点或接入点,其网络层级中均包括MAC层(Common MAC),且在MAC层之下均包括:第一子MAC层LMAC1、第二子MAC层LMAC2、第一物理层PHY1以及第二物理层PHY2。具体地,所述第一子MAC层LMAC1和所述第一物理层PHY1适于使站点或接入点在所述第一传输链路CH1上传输数据,所述第二子MAC层LMAC2和所述第二物理层PHY2适于使站点或接入点在所述第二传输链路CH2上传输数据。在其他实施例中,多链路Wi-Fi系统可以包括多个传输链路,因此所述多链路Wi-Fi系统可以包括多个子MAC层以及对应的多个物理层。
参考图2,图2是图1所示的Wi-Fi系统进行数据传输时的排队队列示意图。待传输的数据帧包括:数据帧A、数据帧B、数据帧C、数据帧D以及数据帧E。在现有的多链路Wi-Fi系统中,待传输的数据帧将被放入各传输链路的排队队列中,待传输的数据帧可以从任何一个传输链路上进行传输。
结合参考图3以及图4,图3是本发明实施例提供的一种数据传输方法的流程示意图;图4是图3所示的数据传输方法中的排队队列示意图。在图3以及图4所示的实施例中,所述多链路Wi-Fi系统包 括第一传输链路(CH1)、及第二传输链路(CH2)、第三传输链路(CH3)以及第四传输链路(CH4),图4示出了上述传输链路的排队队列。本方案适用于接入点侧。
所述传输方法用于多链路Wi-Fi系统,所述多链路Wi-Fi系统均包括多个传输链路,每个所述传输链路均包括用于确定发送数据帧顺序的排队队列。
在S11中,确定所述多个传输链路中的部分为上行传输链路或下行传输链路,其余为普通传输链路。
在一些实施例中,所述普通传输链路用于传输上行数据帧或下行数据帧,所述上行传输链路仅用于传输上行数据帧,所述下行传输链路仅用于传输下行数据帧。
在一些实施例中,接入点可以配置所述多个传输链路中的部分为上行传输链路以及下行传输链路,并广播所述上行传输链路以及下行传输链路的索引信息。因此,接入点可以由此确定哪些传输链路为所述上行传输链路或所述下行传输链路。
在一些实施例中,接入点也可以通过默认的方式将所述多个传输链路中的部分配置为上行传输链路以及下行传输链路。
在图4所示的实施例中,所述第三传输链路被配置为下行传输链路,所述第四传输链路被配置为上行传输链路,所述第一传输链路以及第二传输链路为普通传输链路。
在一些实施例中,接入点可以根据传输链路的带宽设定所述多个传输链路中的部分为上行传输链路或下行传输链路。具体地,可以将带宽较大的部分传输链路配置为下行传输链路,并将带宽较小的部分链路配置为上行传输链路。
在S12中,确定待传输的数据帧的对应传输链路。
在一些实施例中,当确定所述多个传输链路中的部分为所述上行 传输链路或所述下行传输链路后,接入点可以确定待传输的数据帧对应的传输链路,并将待传输的数据帧加入对应传输链路的排队队列中。
在图4所示的实施例中,接入点一侧的待传输数据可以在所述普通传输链路或所述下行传输链路上进行传输。具体地,根据接入点配置,数据帧A可以在所述普通传输链路或所述下行传输链路(CH3)上进行传输;数据帧B、数据帧C、数据帧D以及数据帧E可以在所述普通传输链路上进行传输;所述数据帧G以及数据帧H可以在所述下行传输链路上进行传输
在一些实施例中,可以根据待传输的数据帧的长度设定待传输的数据帧的对应传输链路。具体地,可以设置第一数据帧阈值,若待传输的数据帧的长度大于所述第一数据帧阈值,接入点在所述下行传输链路上传输数据帧,否则,在普通传输链路上传输数据帧。
在S13中,当所述普通传输链路或所述下行传输链路获得传输时机时,分别传输处于其排队队列首位的数据帧。
在图4所示的实施例中,若所述第一传输链路获得传输时机时,接入点在所述第一传输链路传输数据帧A,当开始传输数据帧A之后,所述下行传输链路(CH3)获得传输时机,则在所述下行传输链路上传输数据帧G。
当接入点完成传输数据帧后,会接收到来自接入点的确认消息(ACK)。在一些实施例中,接入点可以在传输所述数据帧的下行传输链路上,接收站点发送的关于所述数据帧的确认信息。例如,接入点在所述下行传输链路上传输数据帧A之后,可以在所述下行传输链路上接收确认消息。
在一些实施例中,接入点可以在上行传输链路上,接收站点发送的关于所述数据帧的确认信息。例如,接入点在所述下行传输链路上传输数据帧A之后,可以在所述上行传输链路上接收确认消息。
因此,上述的设计可以与原有Wi-Fi系统保持兼容性的同时也有一定的灵活性。
结合参考图5以及图6,图5是本发明实施例提供的一种数据传输方法的流程示意图;图6是图5所示的数据传输方法中的排队队列示意图。在图5以及图6所示的实施例中,所述多链路Wi-Fi系统包括第一传输链路(CH1)、及第二传输链路(CH2)、第三传输链路(CH3)以及第四传输链路(CH4),图6示出了上述传输链路的排队队列。本方案适用于站点侧。
所述传输方法用于多链路Wi-Fi系统,所述多链路Wi-Fi系统均包括多个传输链路,每个所述传输链路均包括用于确定发送数据帧顺序的排队队列。
在S21中,确定所述多个传输链路分为普通传输链路、上行传输链路以及下行传输链路。
在一些实施例中,所述普通传输链路用于传输上行数据帧或下行数据帧,所述上行传输链路仅用于传输上行数据帧,所述下行传输链路仅用于传输下行数据帧。
在一些实施例中,站点可以接收所述上行传输链路或所述下行传输链路的索引信息,并根据所述索引信息将所述多个传输链路中的部分配置为上行传输链路或下行传输链路。
在一些实施例中,站点也可以通过默认的方式将所述多个传输链路中的部分配置为上行传输链路以及下行传输链路。
在图6所示的实施例中,所述第三传输链路被配置为下行传输链路,所述第四传输链路被配置为上行传输链路,所述第一传输链路以及第二传输链路为普通传输链路。
在S22中,确定待传输的数据帧的对应传输链路。
在一些实施例中,当确定所述多个传输链路中的部分为所述上行 传输链路或所述下行传输链路后,站点可以确定待传输的数据帧对应的传输链路,并将待传输的数据帧加入对应传输链路的排队队列中。
在图6所示的实施例中,站点一侧的待传输数据可以在所述普通传输链路或所述下行传输链路上进行传输。具体地,根据站点配置,数据帧C可以在所述普通传输链路或所述上行传输链路(CH4)上进行传输;数据帧A、数据帧B、数据帧D以及数据帧E可以在所述普通传输链路上进行传输;所述数据帧G以及数据帧K可以在所述上行传输链路上进行传输。
在一些实施例中,可以根据待传输的数据帧的长度确定待传输的数据帧的对应传输链路。具体地,可以设置第二数据帧阈值,若待传输的数据帧的长度小于所述第二数据帧阈值,站点在所述上行传输链路上传输数据帧,否则,在普通传输链路上传输数据帧。
在S23中,当所述普通传输链路或所述上行传输链路获得传输时机时,分别传输处于其排队队列首位的数据帧。
在图6所示的实施例中,若所述第一传输链路获得传输时机时,站点在所述第一传输链路传输数据帧A,当开始传输数据帧A之后,所述上行传输链路(CH4)获得传输时机,则在所述上行传输链路上传输数据帧C。
当站点完成传输数据帧后,会接收到来自接入点的确认消息。在一些实施例中,站点可以在传输所述数据帧的上行传输链路上,接收接入点发送的关于所述数据帧的确认信息。例如,站点在所述上行传输链路上传输数据帧C之后,可以在所述上行传输链路上接收确认消息。
在一些实施例中,站点可以在所述下行传输链路上,接收接入点发送的关于所述数据帧的确认信息。例如,站点在所述上行传输链路上传输数据帧C之后,可以在所述下行传输链路上接收确认消息。
参考图7,图7是本发明实施例提供的一种数据传输装置的结构 示意图,所述装置适用于接入点侧。所述装置包括存储器11和处理器12,所述存储器上11存储有可在所述处理器12上运行的计算机程序,所述存储在存储器11上的计算机程序即为实现所述数据传输方法中的步骤的程序,所述处理器12执行所述程序时实现所述步骤。所述存储器11可以包括:ROM、RAM、磁盘或光盘等。所述数据传输方法的步骤请参见上文,此处不再赘述。
参考图8,图8是本发明实施例提供的一种数据传输装置的结构示意图,所述装置适用于站点侧。所述装置包括存储器21和处理器22,所述存储器上21存储有可在所述处理器22上运行的计算机程序,所述存储在存储器21上的计算机程序即为实现所述数据传输方法中的步骤的程序,所述处理器22执行所述程序时实现所述步骤。所述存储器21可以包括:ROM、RAM、磁盘或光盘等。所述数据传输方法的步骤请参见上文,此处不再赘述。
虽然本发明披露如上,但本发明并非限定于此。任何本领域技术人员,在不脱离本发明的精神和范围内,均可作各种更动与修改,因此本发明的保护范围应当以权利要求所限定的范围为准。
Claims (16)
- 一种数据传输方法,适用于接入点,其特征在于,所述传输方法用于多链路Wi-Fi系统,所述多链路Wi-Fi系统均包括多个传输链路,每个所述传输链路均包括用于确定发送数据帧顺序的排队队列,所述传输方法包括:确定所述多个传输链路中的部分为上行传输链路或下行传输链路,其余为普通传输链路,所述普通传输链路用于传输上行数据帧或下行数据帧,所述上行传输链路仅用于传输上行数据帧,所述下行传输链路仅用于传输下行数据帧;确定待传输的数据帧的对应传输链路;以及当所述普通传输链路或所述下行传输链路获得传输时机时,分别传输处于其排队队列首位的数据帧。
- 根据权利要求1所述的数据传输方法,其特征在于,所述确定所述多个传输链路中的部分为上行传输链路或下行传输链路包括:接入点配置所述多个传输链路中的部分为上行传输链路以及下行传输链路。
- 根据权利要求2所述的数据传输方法,其特征在于,所述确定所述多个传输链路中的部分为上行传输链路或下行传输链路后,还包括:接入点广播上行传输链路以及下行传输链路的索引信息。
- 根据权利要求1所述的数据传输方法,其特征在于,所述确定所述多个传输链路中的部分为上行传输链路或下行传输链路包括:接入点通过默认的方式将所述多个传输链路中的部分配置为上行传输链路以及下行传输链路。
- 根据权利要求1所述的数据传输方法,其特征在于,所述确定所述多个传输链路中的部分为上行传输链路或下行传输链路包括:接入点根据传输链路的带宽设定所述多个传输链路中的部分为上行传输链路或下行传输链路。
- 根据权利要求1所述的数据传输方法,其特征在于,确定待传输的数据帧的对应传输链路包括:接入点根据待传输的数据帧的长度设定待传输的数据帧的对应传输链路。
- 根据权利要求1所述的数据传输方法,其特征在于,在传输所述数据帧的下行传输链路上,接收站点发送的关于所述数据帧的确认信息。
- 根据权利要求1所述的数据传输方法,其特征在于,在所述上行传输链路上,接收站点发送的关于所述数据帧的确认信息。
- 一种数据传输方法,适用于站点,其特征在于,所述传输方法用于多链路Wi-Fi系统,所述多链路Wi-Fi系统均包括多个传输链路,每个所述传输链路均包括用于确定发送数据帧顺序的排队队列,所述传输方法包括:确定所述多个传输链路分为普通传输链路、上行传输链路以及下行传输链路,所述普通传输链路用于传输上行数据帧或下行数据帧,所述上行传输链路仅用于传输上行数据帧,所述下行传输链路仅用于传输下行数据帧;确定待传输的数据帧的对应传输链路;以及当所述普通传输链路或所述上行传输链路获得传输时机时,分别传输处于其排队队列首位的数据帧。
- 根据权利要求9所述的传输方法,其特征在于,所述确定所述多个传输链路中的部分为上行传输链路或下行传输链路包括:接收所述上行传输链路或所述下行传输链路的索引信息;根据所述索引信息将所述多个传输链路中的部分配置为上行传输 链路或下行传输链路。
- 根据权利要求9所述的传输方法,其特征在于,所述确定所述多个传输链路中的部分为上行传输链路或下行传输链路包括:通过默认的方式将所述多个传输链路中的部分配置为所述上行传输链路或所述下行传输链路。
- 根据权利要求9所述的数据传输方法,其特征在于,确定待传输的数据帧的对应传输链路包括:根据待传输的数据帧的长度确定待传输的数据帧的对应传输链路。
- 根据权利要求9所述的数据传输方法,其特征在于,在传输所述数据帧的上行传输链路上,接收接入点发送的关于所述数据帧的确认信息。
- 根据权利要求9所述的数据传输方法,其特征在于,在所述下行传输链路上,接收接入点发送的关于所述数据帧的确认信息。
- 一种数据传输装置,包括存储器和处理器,所述存储器上存储有可在所述处理器上运行的计算机程序,其特征在于,所述处理器执行所述程序时实现如权利要求1至8中任一所述的数据传输方法中的步骤。
- 一种数据传输装置,包括存储器和处理器,所述存储器上存储有可在所述处理器上运行的计算机程序,其特征在于,所述处理器执行所述程序时实现如权利要求9至14中任一所述的数据传输方法中的步骤。
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CN113965977B (zh) * | 2020-07-20 | 2023-03-31 | 成都极米科技股份有限公司 | 多链路系统中数据传输方法、设备、系统及介质 |
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US20210235322A1 (en) | 2021-07-29 |
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