WO2021057777A1 - 通信方法、装置、计算机可读介质及电子设备 - Google Patents

通信方法、装置、计算机可读介质及电子设备 Download PDF

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Publication number
WO2021057777A1
WO2021057777A1 PCT/CN2020/117063 CN2020117063W WO2021057777A1 WO 2021057777 A1 WO2021057777 A1 WO 2021057777A1 CN 2020117063 W CN2020117063 W CN 2020117063W WO 2021057777 A1 WO2021057777 A1 WO 2021057777A1
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Prior art keywords
field
information
group
message frame
device group
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PCT/CN2020/117063
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English (en)
French (fr)
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左鑫
徐剑波
张丹
宁斌晖
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腾讯科技（深圳）有限公司
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Priority to JP2021530181A priority Critical patent/JP7202461B2/ja
Priority to EP20870179.7A priority patent/EP4037229A4/en
Publication of WO2021057777A1 publication Critical patent/WO2021057777A1/zh
Priority to US17/326,164 priority patent/US20210274516A1/en

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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
    • 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
    • H04L5/0044—Arrangements for allocating sub-channels of the transmission path allocation of payload
    • 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
    • H04L5/0058—Allocation criteria
    • H04L5/0064—Rate requirement of the data, e.g. scalable bandwidth, data priority
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/16—Discovering, processing access restriction or access information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0446—Resources in time domain, e.g. slots or frames
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/30—Resource management for broadcast services
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/002—Transmission of channel access control information
    • H04W74/006—Transmission of channel access control information in the downlink, i.e. towards the terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/04—Scheduled access
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/11—Allocation or use of connection identifiers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/40—Connection management for selective distribution or broadcast
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling
    • H04W72/121—Wireless traffic scheduling for groups of terminals or users
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal

Definitions

  • This application relates to the field of computer and communication technologies, and in particular, to communication methods, devices, computer-readable media, and electronic equipment.
  • wireless access networks such as wireless local area networks
  • RTA Real Time Application
  • the embodiments of the present application provide communication methods, devices, computer-readable media, and electronic equipment.
  • a communication method which is executed by an electronic device, and the method includes: generating a first message frame, the first message frame containing grouping indication information of an access device, and The grouping indication information is used to indicate the information of the device grouping that performs data transmission after sending the first message frame; the first message frame is sent to trigger the device grouping indicated by the grouping indication information to perform data transmission.
  • a communication device including: a generating unit, configured to generate a first message frame, the first message frame containing grouping indication information of an access device, and the grouping indication The information is used to indicate the information of the device grouping for data transmission after sending the first message frame; the sending unit is used to send the first message frame to trigger the device group indicated by the grouping indication information to perform data transmission .
  • a computer-readable medium having a computer program stored thereon, and the computer program, when executed by a processor, implements the communication method as described in the above-mentioned embodiment.
  • an electronic device including: one or more processors; a storage device, configured to store one or more programs, when the one or more programs are used by the one or more programs.
  • a storage device configured to store one or more programs, when the one or more programs are used by the one or more programs.
  • the one or more processors are caused to implement the communication method described in the foregoing embodiment.
  • FIG. 1 shows a schematic diagram of an exemplary system architecture to which the technical solutions of the embodiments of the present application can be applied;
  • Fig. 2 shows a flowchart of a communication method according to an embodiment of the present application
  • Fig. 3 shows a flowchart of a communication method according to an embodiment of the present application
  • Figure 4 shows a schematic structural diagram of a trigger frame
  • Fig. 5 shows a schematic structural diagram of a trigger frame according to an embodiment of the present application
  • Figure 6 shows a data exchange flow chart according to an embodiment of the present application
  • Fig. 7 shows a schematic structural diagram of an element for sending grouping information according to an embodiment of the present application
  • Fig. 8 shows a schematic structural diagram of a user information field according to an embodiment of the present application.
  • Fig. 9 shows a schematic structural diagram of a trigger frame according to an embodiment of the present application.
  • Fig. 10 shows a data exchange flowchart according to an embodiment of the present application
  • FIG. 11 shows a schematic structural diagram of a trigger frame according to an embodiment of the present application.
  • Fig. 12 shows a data exchange flowchart according to an embodiment of the present application
  • Fig. 13 shows a block diagram of a communication device according to an embodiment of the present application.
  • Fig. 14 shows a schematic structural diagram of a computer system suitable for implementing an electronic device according to an embodiment of the present application.
  • the existing standard IEEE802.11ax cannot meet the low latency and low jitter requirements of RTA in many scenarios, and when there are a large number of RTA services, the signaling overhead is relatively large, which will affect the communication efficiency of the system.
  • the embodiments of the present application provide communication methods, devices, computer-readable media, and electronic equipment.
  • the first message frame containing the grouping indication information of the access device is generated, and the grouping indication information is used to indicate data transmission after sending the first message frame.
  • Device grouping information after sending the first message frame to trigger the device group indicated by the grouping indication information for data transmission, so that a first message frame can trigger one or more device groups for data transmission, reducing signaling overhead,
  • the communication efficiency of the system can be improved, and it can also meet the needs of RTA services.
  • Fig. 1 shows a schematic diagram of an exemplary system architecture to which the technical solutions of the embodiments of the present application can be applied.
  • the system architecture may include an access point (Access Point, AP for short) 101, a station (non-AP, Station, STA for short) 102, a station 103, and a station 104.
  • the access point 101, the station 102, the station 103, and the station 104 form a wireless local area network (Local Area Network, LAN for short).
  • the site can be a smart phone, tablet computer, portable computer, desktop computer, etc.
  • FIG. 1 the number of access points and stations shown in FIG. 1 is merely illustrative. According to implementation needs, there can be any number of access points and stations.
  • the access point 101 may generate a first message frame, the first message frame may be a trigger frame (ie Trigger Frame), and the first message frame contains the grouping indication information of the access device
  • the grouping indication information is used to indicate the grouping information of the device that performs data transmission after sending the first message frame.
  • the station 102, the station 103, and the station 104 belong to a device group
  • the first message frame generated by the access point 101 may contain indication information for the group to which the station 102, the station 103 and the station 104 belong, and the access point 101 is in After sending the first message frame, the station 102, the station 103, and the station 104 can be triggered to perform data transmission.
  • the technical solution of the embodiment of the present application can trigger multiple devices to perform data transmission by sending a first message frame, thereby reducing signaling Expenses, which in turn can improve the communication efficiency of the system.
  • the communication method provided in the embodiment of the present application is generally executed by the access point 101, and correspondingly, the communication device provided in the embodiment of the present application is generally set in the access point 101.
  • FIG. 2 shows a flowchart of a communication method according to an embodiment of the present application.
  • the communication method may be executed by an access point, and the access point may be the access point 101 shown in FIG. 1.
  • the communication method includes at least step S210 to step S220, which are described in detail as follows.
  • step S210 a first message frame is generated, and the first message frame contains grouping indication information of the access device, and the grouping indication information is used to indicate a device that performs data transmission after sending the first message frame Grouped information.
  • the first message frame may be a trigger frame
  • the access device may be a site device.
  • One device group can contain one or more access devices.
  • the grouping indication information may include a first field and at least one second field.
  • the first field is used to indicate the number of device packets that perform data transmission after sending the first message frame, and the number is the same as the number of the second field;
  • the second field is used to indicate data transmission after the first message frame is sent
  • the identification information of the transmitted device group For example, if the number of device groups indicated by the first field is 3, then the group indication information may include three second fields, and each second field indicates identification information of a corresponding device group.
  • the sequence of each second field included in the group indication information in the group indication information is used to indicate the channel access sequence of the device group indicated by each second field. For example, if the grouping indication information contains three second fields, which are arranged in sequence and indicate device group 1, device group 2, and device group 3 respectively, then the channel access sequence of these three device groups They are device group 1, device group 2, and device group 3.
  • the resource allocation information of each device in the device group may be notified to each device before the first message frame.
  • a communication method in an embodiment of the present application may include The steps S310 and S320 are as follows.
  • step S310 before sending the first message frame, a second message frame is generated, and the second message frame contains identification information of the device group and resource allocation information of each device in the device group.
  • the resource allocation information of the device includes bandwidth resource information, transmission power information, MCS (Modulation and Coding Scheme, modulation and coding strategy) for uplink transmission, and FEC (Forward Error Correction) Channel coding, etc.
  • MCS Modulation and Coding Scheme, modulation and coding strategy
  • FEC Forward Error Correction
  • the identification information of the device group may be generated according to the association identifier (Association Identifier, AID for short) of each device included in the device group.
  • the identification information of the device group can be generated according to the associated identification of one device in the device group.
  • the value of some bits of the associated identification of a device in the device group can be used as the value of each bit of the identification information of the device group, for example, the lower 12 bits of the associated identification can be used as the identification information of the device group; or
  • the value of the partial bit of the association identifier of a device in the device group is used as the value of the partial bit of the identification information of the device group.
  • the low 8 bits of the association identifier are used as the low 8 bits of the identification information of the device group.
  • the upper 4 bits of the identification information are customized by the access point; or the bits of the identification information of the device group can be set according to the value of the partial bit value of the associated identification of a device in the device group and the set value. Bit value, such as adding the lower 11 bits of the associated identification to 2046 to obtain the identification information of the device group.
  • the identification information of the device group can be generated based on the associated identification of one device in the device group as described above, or it can be generated based on the associated identification of at least two devices.
  • Identification information of the device group For example, some bits in the associated identification of at least two devices may be spliced to obtain each bit in the identification information of the device group. For example, when generating the identification information of the device group based on the associated identifications of the three devices in the device group, the lower 4 bits of the associated identifications of the three devices can be spliced to obtain the identification information of the device group.
  • step S320 the second message frame is sent to each device in the device group.
  • the technical solution of the embodiment shown in FIG. 3 enables the device grouping information and the resource allocation information of each device in the device group to be notified in advance to each device, so that each device can perform data based on the allocated resources after receiving the first message frame transmission.
  • the grouping indication information may also include at least one third field, and the value of the third field is used to indicate data transmission after the first message frame is sent. Information about at least one device.
  • the technical solution of this embodiment enables the first message frame to trigger at least one device to perform data transmission on the basis of triggering device grouping.
  • the at least one device indicated by the third field and the device in the device group indicated by the previous second field of the third field have the same channel access sequence during data transmission.
  • the device indicated by the third field is device 4, and the device group indicated by the second field before the third field contains device 1, device 2, and device 3, then device 4 is the same as device 1, device 2, and device 3. Have the same channel access sequence.
  • step S220 the first message frame is sent to trigger the device group indicated by the grouping indication information to perform data transmission.
  • the grouping indication information can be multiplexed with the device information field (ie, the User Info field) in the trigger frame.
  • the first message frame may also include a trigger type field, and the trigger type field is used to indicate the type of the first message frame; wherein, in the case that the first message frame is a trigger frame,
  • the trigger type field can reuse the common information field (ie Common Info field) in the trigger frame.
  • the trigger frame in 802.11ax can be a PPDU (Presentation Protocol Data Unit, representing a layer protocol data unit, which is a physical layer protocol data unit); PPDU is in a MPDU (Media Access Control Protocol Data Unit, medium access The control layer protocol data unit) adds a data frame formed by the physical layer frame header (PHY Header) and PE (frame extension) fields; MPDU contains the MAC layer frame header (MAC Header), frame body (Frame Body) ) And frame check sequence (Frame Check Sequence, FCS for short).
  • PPDU Presentation Protocol Data Unit
  • MPDU Media Access Control Protocol Data Unit, medium access
  • MPDU contains the MAC layer frame header (MAC Header), frame body (Frame Body) ) And frame check sequence (Frame Check Sequence, FCS for short).
  • the MAC layer frame header includes a frame control field (Frame Control, FC), a length field (Duration), a receiver address field (Receiver Address, RA), and a transmitting address field (Transmitter Address, TA);
  • FC frame control field
  • Duration length field
  • RA receiver address field
  • TA transmitting address field
  • the body contains a common information field (i.e. Common Info), a user information list (i.e. User Info List), and a padding field (i.e. Padding).
  • the trigger frame in the embodiment of the present application in which the value of the "trigger type” field in the trigger frame can be set to indicate that the trigger frame is used to indicate device grouping.
  • the value of the "Trigger Type” field can be set to 8 (the reserved value of the "Trigger Type” field of the trigger frame in 802.11ax).
  • the User Info field in the original trigger frame can be reused as the grouping indication field.
  • the group indication field includes a "number of groups” field and a "group ID” field.
  • the "packet number” field can be 4 bits
  • the "packet ID” field can be 12 bits.
  • the "packet number” field is used to indicate how many subsequent packet accesses, that is, how many "packet ID” fields are there.
  • 0, 8-15 are reserved values of the "number of packets” field; the value of the "number of packets” field is equal to 1-7, which means that the trigger frame proposed in the embodiment of the present application will trigger several packet accesses.
  • the "Group ID” field is used to indicate a predefined group number, which is allocated by the AP.
  • the value of the "Group Quantity” field should be equal to the number of the "Group ID” field. In the embodiment shown in FIG. 5, it means that the trigger frame triggers a packet access, and the packet ID is packet 3.
  • the specific data exchange process is shown in Figure 6.
  • the AP After the AP sends a trigger frame (the trigger frame indicates that the number of packets is 1, and the group ID is 3), STA1, STA2, and STA3 in group 3 indicated by the trigger frame send PPDUs, and then After receiving the PPDU sent by each STA in packet 3, the AP performs a multi-site reply.
  • the trigger frame indicates that the number of packets is 1, and the group ID is 3
  • STA1, STA2, and STA3 in group 3 indicated by the trigger frame send PPDUs, and then After receiving the PPDU sent by each STA in packet 3, the AP performs a multi-site reply.
  • the device group triggered by the trigger frame should be sent according to the configuration corresponding to the pre-saved group ID when sending uplink data.
  • these configurations include bandwidth resource allocation, transmission power indication, uplink transmission MCS, FEC channel coding, etc. of each station in the device group.
  • These configurations should be sent to each participating station before the trigger frame, and the station should save the packet ID and corresponding configuration information after receiving it.
  • new elements can be used to send these configurations, as shown in Figure 7, which can include: element ID field (i.e. Element ID), length field (i.e. Length), extension field (i.e.
  • Element ID Extension
  • group ID field ie User Info List
  • user information list field ie User Info List
  • element ID field can be 8 bits
  • the length field can be 8 bits
  • the extension field can be 8 bits
  • the packet ID field can be 12 bits
  • user information list field can be multiple bytes.
  • the value of the element ID field can be 255, and the value of the extension field can be 61 or any other legal value (between 0-255) that has not been adopted;
  • the length field indicates the word of the entire field. Number of sections;
  • the group ID field indicates the ID of the device group;
  • the user information list field contains one or more User Info fields.
  • the structure of the User Info field is shown in Figure 8, which can include: association identification field (ie AID), resource allocation field (Resource Unit Allocation, RU Allocation), uplink FEC coding type field (UL FEC Coding Type), and uplink modulation It is related to the coding strategy field (UL MCS), the uplink dual carrier modulation field (UL Dual Carrier Modulation, referred to as UL DCM), and the spatial stream allocation/random access-resource unit information field (spatial stream Allocation/Random Access-Resource Unit Information, SS Allocation).
  • the association identification field can occupy 12 bits
  • the resource allocation field can occupy 8 bits
  • the uplink FEC coding type can occupy 1 bit
  • the uplink modulation and coding strategy field can occupy 4 bits
  • the uplink dual-carrier modulation field can occupy 1 bit.
  • Bits, spatial stream allocation/random access-the resource unit information field can occupy 6 bits
  • the uplink target RSSI field can occupy 7 bits
  • the reserved field can occupy 1 bit
  • the length of the user information field depends on the trigger frame. change.
  • resource allocation information such as bandwidth resource allocation and transmission power indication of each station included in the device group may also be notified to the station in other formats.
  • the setting of the group ID may follow the setting of the AID subfield in the User Info field. Specifically, it can be set according to the following principles:
  • the 8-bit setting of the group ID field can be associated with the AID of one or more stations in the group, and 2046 can be added.
  • group 2 has only one station 2 (its AID is 2), the 12 bits of the group ID take the lower 11 bits of the station’s AID and add 2046.
  • the group ID can be spliced by the AIDs of multiple participating sites.
  • the lower 4 bits of the group ID are the lower 4 bits of the AID of station 1
  • the middle 4 bits of the group ID are the lower 4 bits of the AID of the station 2
  • the upper 4 bits of the group ID are the lower 4 bits of the AID of the station 3. Then add 2046 to get the final group ID.
  • Some bits of the group ID field can be associated with the AID of one or more stations participating in the group, and the rest of the bits are defined by the AP.
  • the lower 8 bits of the 12 bits of the group ID can be the lower 8 bits of the AID of the station 3
  • the upper 4 bits of the group ID can be assigned by the AP, for example, distinguished by different RTA service allocations.
  • the value of the group ID is between 2046 and 4095, and does not include 2046 and 4095.
  • the trigger frame can trigger the grouping access of multiple devices.
  • the value indicated by the group quantity field is 3, and the group indication field contains 3 group ID fields. For example, it can be used to indicate group 3, group 2 and group 4 respectively.
  • the channel access sequence is group 3, group 2 and group 4.
  • the data frame sent by each station in group 3 is a PPDU based on the trigger frame.
  • Each station in group 2 starts the data transmission process after each station in group 3 has completed the transmission, and each station in group 4 is in each station in group 2. After the transmission is completed, the data transmission process starts.
  • the specific data exchange process is shown in Figure 10.
  • the AP sends a trigger frame (the trigger frame indicates the number of packets is 3) and the SIFS (Short interframe space) is passed
  • the STA1 in the packet 3 indicated by the trigger frame , STA2 and STA3 send PPDUs first
  • each station in group 3 sends PPDUs after the completion of the transmission and after SIFS
  • STA2 in group 2 sends PPDUs
  • each station in group 2 sends PPDUs after finishing sending and after SIFS
  • STA4 in group 4 sends PPDUs.
  • the AP receives the PPDU sent by the STA in each packet, it performs a multi-site reply.
  • the trigger frame may also indicate the information of the station performing the data transmission.
  • the value of the "trigger type” field of the trigger frame can be set to 9 (different from 8 in the foregoing embodiment, it is reserved for the "trigger type” field of the trigger frame in 802.11ax. Value), where the group indication field may include a "User Info List” field in addition to the "Group Quantity” and the indicated “Group ID” field.
  • the "User Info List” field can use the unused bandwidth in the packet ID to trigger other stations to send PPDUs based on the trigger frame (ie, TB PPDU).
  • the STAs corresponding to the "User Info List" field included in the "Group Indication” field can send PPDUs together with the STAs corresponding to the previous group ID.
  • the trigger frame indicates grouping information
  • the STA1, STA2, and STA3 in the group 3 indicated by the trigger frame, and the group ID in the "group indication" field STA4 and STA5 indicated by the last user information list field of 3 send PPDU first.
  • STA1, STA2, STA3, STA4 and STA5 are sent and passed SIFS
  • STA2 and STA4 send the PPDU after the completion of the SIFS
  • the STA4 in group 4 sends the PPDU.
  • the AP receives the PPDU sent by the STA in each packet, it performs a multi-site reply.
  • the technical solution of the foregoing embodiment of the present application can realize the scheduling of static uplink data frame transmission through grouping indication information, and reduce the signaling overhead.
  • the indication information of the common info and user info fields in the trigger frame is statically fixed and fixed. It is the grouping information, and then only the grouping indication information can be carried in the new trigger frame to complete the triggered station indication and related bandwidth resource allocation, transmission power indication, etc.
  • one trigger frame can trigger multiple transmissions of TB PPDUs, which further reduces signaling overhead and meets the needs of RTA services.
  • Fig. 13 shows a block diagram of a communication device according to an embodiment of the present application.
  • the communication device may be set in an access point device.
  • a communication device 1300 includes: a generating unit 1302 and a sending unit 1304.
  • the generating unit 1302 is configured to generate a first message frame, the first message frame contains grouping indication information of the access device, and the grouping indication information is used to indicate data transmission after sending the first message frame
  • the sending unit 1304 is configured to send the first message frame to trigger the device group indicated by the grouping indication information to perform data transmission.
  • the grouping indication information includes a first field and at least one second field; the first field is used to indicate data transmission after sending the first message frame
  • the number of the device group is the same as the number of the second field; the second field is used to indicate the identification information of the device group that performs data transmission after sending the first message frame.
  • the arrangement order of each second field included in the grouping indication information in the grouping indication information is used to indicate the order of the device grouping indicated by each second field.
  • Channel access sequence
  • the generating unit 1302 is further configured to: generate a second message frame, the second message frame containing identification information of the device group, and each device in the device group
  • the sending unit 1304 is further configured to send the second message frame to each device in the device group before sending the first message frame.
  • the generating unit 1302 is further configured to generate the identification information of the device group according to the associated identification of each device included in the device group.
  • the generating unit 1302 is configured to: if one or more devices are included in the device group, generate the device according to the association identifier of one device in the device group.
  • the identification information of the device group if the device group includes at least two devices, the identification information of the device group is generated according to the associated identification of the at least two devices.
  • the generating unit 1302 is configured to generate the identification information of the device group according to the associated identification of a device in the device group, including: grouping the devices into The value of the partial bit of the association identifier of a device in the device group is used as the value of each bit of the identification information of the device group; or the value of the partial bit of the association identifier of a device in the device group is used as the device The value of the partial bit of the identification information of the group; or the value obtained by calculating the value of the partial bit of the associated identification of a device in the device group and the set value to set each bit of the identification information of the device group The value of the bit.
  • the generating unit 1302 is configured to generate the identification information of the device group according to the associated identification of the at least two devices, including: Part of the bits in the association identification are spliced to obtain each bit in the identification information of the device group.
  • the first message frame is a trigger frame
  • the grouping indication information multiplexes the device information field in the trigger frame.
  • the first message frame further includes a trigger type field, and the trigger type field is used to indicate the type of the first message frame;
  • the trigger type field multiplexes the common information field in the trigger frame.
  • the grouping indication information further includes at least one third field; the value of the third field is used to indicate data transmission after sending the first message frame Information about at least one device.
  • the at least one device indicated by the third field and the device in the device group indicated by the previous second field of the third field have data transmission The same channel access sequence.
  • the third field includes at least one device information field, and each device information field is used to indicate resource allocation information of a device; each device information field It contains a designated bit, and the value of the designated bit is used to indicate whether the next field is the device information field.
  • Fig. 14 shows a schematic structural diagram of a computer system suitable for implementing an electronic device according to an embodiment of the present application.
  • the computer system 1400 includes a central processing unit (Central Processing Unit, CPU) 1401, which can be loaded into a random system according to a program stored in a read-only memory (Read-Only Memory, ROM) 1402 or from the storage part 1408. Access to the program in the memory (Random Access Memory, RAM) 1403 to execute various appropriate actions and processing, for example, execute the method described in the foregoing embodiment. Various programs and data required for system operation are also stored in RAM 1403.
  • the CPU 1401, the ROM 1402, and the RAM 1403 are connected to each other through a bus 1404.
  • An Input/Output (I/O) interface 1405 is also connected to the bus 1404.
  • the following components are connected to the I/O interface 1405: input part 1406 including keyboard, mouse, etc.; output part 1407 including cathode ray tube (Cathode Ray Tube, CRT), liquid crystal display (LCD), etc., and speakers, etc. ; A storage part 1408 including a hard disk, etc.; and a communication part 1409 including a network interface card such as a LAN (Local Area Network) card, a modem, and the like.
  • the communication section 1409 performs communication processing via a network such as the Internet.
  • the driver 1410 is also connected to the I/O interface 1405 as needed.
  • a removable medium 1411 such as a magnetic disk, an optical disk, a magneto-optical disk, a semiconductor memory, etc., is installed on the drive 1410 as needed, so that the computer program read therefrom is installed into the storage portion 1408 as needed.
  • the process described above with reference to the flowchart can be implemented as a computer software program.
  • the embodiments of the present application include a computer program product, which includes a computer program carried on a computer-readable medium, and the computer program includes a computer program for executing the method shown in the flowchart.
  • the computer program may be downloaded and installed from the network through the communication part 1409, and/or installed from the removable medium 1411.
  • CPU central processing unit
  • the computer-readable medium shown in the embodiment of the present application may be a computer-readable signal medium or a computer-readable storage medium, or any combination of the two.
  • the computer-readable storage medium may be, for example, but not limited to, an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, device, or device, or a combination of any of the above.
  • Computer-readable storage media may include, but are not limited to: electrical connections with one or more wires, portable computer disks, hard disks, random access memory (RAM), read-only memory (ROM), erasable removable Erasable Programmable Read Only Memory (EPROM), flash memory, optical fiber, portable compact disk read-only memory (Compact Disc Read-Only Memory, CD-ROM), optical storage device, magnetic storage device, or any suitable of the above The combination.
  • a computer-readable storage medium may be any tangible medium that contains or stores a program, and the program may be used by or in combination with an instruction execution system, apparatus, or device.
  • a computer-readable signal medium may include a data signal propagated in a baseband or as a part of a carrier wave, and a computer-readable computer program is carried therein.
  • This propagated data signal can take many forms, including but not limited to electromagnetic signals, optical signals, or any suitable combination of the foregoing.
  • the computer-readable signal medium may also be any computer-readable medium other than the computer-readable storage medium.
  • the computer-readable medium may send, propagate, or transmit the program for use by or in combination with the instruction execution system, apparatus, or device .
  • the computer program contained on the computer-readable medium can be transmitted by any suitable medium, including but not limited to: wireless, wired, etc., or any suitable combination of the above.
  • each block in the flowchart or block diagram may represent a module, program segment, or part of the code, and the above-mentioned module, program segment, or part of the code includes one or more executables for realizing the specified logic function. instruction.
  • the functions marked in the block may also occur in a different order from the order marked in the drawings. For example, two blocks shown in succession can actually be executed substantially in parallel, and they can sometimes be executed in the reverse order, depending on the functions involved.
  • each block in the block diagram or flowchart, and the combination of blocks in the block diagram or flowchart can be implemented by a dedicated hardware-based system that performs the specified function or operation, or can be implemented by It is realized by a combination of dedicated hardware and computer instructions.
  • the units involved in the embodiments described in the present application may be implemented in software or hardware, and the described units may also be provided in a processor. Among them, the names of these units do not constitute a limitation on the unit itself under certain circumstances.
  • this application also provides a computer-readable medium.
  • the computer-readable medium may be included in the electronic device described in the above-mentioned embodiments; or it may exist alone without being assembled into the electronic device. in.
  • the foregoing computer-readable medium carries one or more programs, and when the foregoing one or more programs are executed by an electronic device, the electronic device realizes the method described in the foregoing embodiment.
  • modules or units of the device for action execution are mentioned in the above detailed description, this division is not mandatory.
  • the features and functions of two or more modules or units described above may be embodied in one module or unit.
  • the features and functions of a module or unit described above can be further divided into multiple modules or units to be embodied.
  • the example embodiments described here can be implemented by software, or can be implemented by combining software with necessary hardware. Therefore, the technical solution according to the embodiments of the present application can be embodied in the form of a software product, which can be stored in a non-volatile storage medium (which can be a CD-ROM, U disk, mobile hard disk, etc.) or on the network , Including several instructions to make a computing device (which can be a personal computer, a server, a touch terminal, or a network device, etc.) execute the method according to the embodiments of the present application.
  • a non-volatile storage medium which can be a CD-ROM, U disk, mobile hard disk, etc.
  • Including several instructions to make a computing device which can be a personal computer, a server, a touch terminal, or a network device, etc.

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Abstract

本申请的实施例提供了通信方法、装置、计算机可读介质及电子设备。该通信方法包括：生成第一消息帧，所述第一消息帧中包含有接入设备的分组指示信息，所述分组指示信息用于指示在发送所述第一消息帧之后进行数据传输的设备分组的信息；发送所述第一消息帧，以触发所述分组指示信息所指示的设备分组进行数据传输。

Description

通信方法、装置、计算机可读介质及电子设备
本申请要求于2019年9月29日提交国家知识产权局、申请号为201910936481.X、申请名称为“通信方法、装置、计算机可读介质及电子设备”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。
技术领域
本申请涉及计算机及通信技术领域，具体而言，涉及通信方法、装置、计算机可读介质及电子设备。
背景技术
随着互联网技术的发展，很多服务和应用对无线接入网络(例如无线局域网)的吞吐量和时延等各方面都提出了越来越高的要求，比如RTA(Real Time Application，实时应用)。
发明内容
本申请的实施例提供了通信方法、装置、计算机可读介质及电子设备。
本申请的其它特性和优点将通过下面的详细描述变得显然，或部分地通过本申请的实践而习得。
根据本申请实施例的一个方面，提供了一种通信方法，由电子设备执行，该方法包括：生成第一消息帧，所述第一消息帧中包含有接入设备的分组指示信息，所述分组指示信息用于指示在发送所述第一消息帧之后进行数据传输的设备分组的信息；发送所述第一消息帧，以触发所述分组指示信息所指示的设备分组进行数据传输。
根据本申请实施例的一个方面，提供了一种通信装置，包括：生成单元，用于生成第一消息帧，所述第一消息帧中包含有接入设备的分组指示信息，所述分组指示信息用于指示在发送所述第一消息帧之后进行数据传输的设备分组的信息；发送单元，用于发送所述第一消 息帧，以触发所述分组指示信息所指示的设备分组进行数据传输。
根据本申请实施例的一个方面，提供了一种计算机可读介质，其上存储有计算机程序，所述计算机程序被处理器执行时实现如上述实施例中所述的通信方法。
根据本申请实施例的一个方面，提供了一种电子设备，包括：一个或多个处理器；存储装置，用于存储一个或多个程序，当所述一个或多个程序被所述一个或多个处理器执行时，使得所述一个或多个处理器实现如上述实施例中所述的通信方法。
应当理解的是，以上的一般描述和后文的细节描述仅是示例性和解释性的，并不能限制本申请。
附图说明
此处的附图被并入说明书中并构成本说明书的一部分，示出了符合本申请的实施例，并与说明书一起用于解释本申请的原理。显而易见地，下面描述中的附图仅仅是本申请的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其它的附图。在附图中：
图1示出了可以应用本申请实施例的技术方案的示例性系统架构的示意图；
图2示出了根据本申请的一个实施例的通信方法的流程图；
图3示出了根据本申请的一个实施例的通信方法的流程图；
图4示出了一种触发帧的结构示意图；
图5示出了根据本申请的一个实施例的触发帧的结构示意图；
图6示出了根据本申请的一个实施例的数据交互流程图；
图7示出了根据本申请的一个实施例的用于发送分组信息的元素的结构示意图；
图8示出了根据本申请的一个实施例的用户信息字段的结构示意图；
图9示出了根据本申请的一个实施例的触发帧的结构示意图；
图10示出了根据本申请的一个实施例的数据交互流程图；
图11示出了根据本申请的一个实施例的触发帧的结构示意图；
图12示出了根据本申请的一个实施例的数据交互流程图；
图13示出了根据本申请的一个实施例的通信装置的框图；
图14示出了适于用来实现本申请实施例的电子设备的计算机系统的结构示意图。
具体实施方式
现在将参考附图更全面地描述示例实施方式。然而，示例实施方式能够以多种形式实施，且不应被理解为限于在此阐述的范例；相反，提供这些实施方式使得本申请将更加全面和完整，并将示例实施方式的构思全面地传达给本领域的技术人员。
此外，所描述的特征、结构或特性可以以任何合适的方式结合在一个或更多实施例中。在下面的描述中，提供许多具体细节从而给出对本申请的实施例的充分理解。然而，本领域技术人员将意识到，可以实践本申请的技术方案而没有特定细节中的一个或更多，或者可以采用其它的方法、组元、装置、步骤等。在其它情况下，不详细示出或描述公知方法、装置、实现或者操作以避免模糊本申请的各方面。
附图中所示的方框图仅仅是功能实体，不一定必须与物理上独立的实体相对应。即，可以采用软件形式来实现这些功能实体，或在一个或多个硬件模块或集成电路中实现这些功能实体，或在不同网络和/或处理器装置和/或微控制器装置中实现这些功能实体。
附图中所示的流程图仅是示例性说明，不是必须包括所有的内容和操作/步骤，也不是必须按所描述的顺序执行。例如，有的操作/步骤还可以分解，而有的操作/步骤可以合并或部分合并，因此实际执行的顺序有可能根据实际情况改变。
现有标准IEEE802.11ax在很多场景下无法满足RTA的低时延、低抖动的需求，且在有大量RTA业务时，信令开销较大，进而会影响系统的通信效率。
有鉴于此，本申请实施例提供了通信方法、装置、计算机可读介质及电子设备。在本申请的一些实施例所提供的技术方案中，通过生成包含有接入设备的分组指示信息的第一消息帧，且该分组指示信息用于指示在发送第一消息帧之后进行数据传输的设备分组的信息，以在发送第一消息帧之后触发分组指示信息所指示的设备分组进行数据传输，使得一个第一消息帧可以触发一个或多个设备分组进行数据传输，减少了信令开销，进而可以提高系统的通信效率，同时也能够满足RTA业务的需求。
图1示出了可以应用本申请实施例的技术方案的示例性系统架构的示意图。
如图1所示，系统架构可以包括接入点(Access Point，简称AP)101、站点(non-AP，即Station，简称STA)102、站点103和站点104。其中，接入点101、站点102、站点103和站点104组成无线局域网(Local Area Network，简称LAN)。站点可以是智能手机、平板电脑、便携式计算机、台式计算机等等。
应该理解，图1中所示的接入点和站点的数目仅仅是示意性的。根据实现需要，可以具有任意数目的接入点和站点。
在本申请的一个实施例中，接入点101可以生成第一消息帧，该第一消息帧可以是触发帧(即Trigger Frame)，该第一消息帧中包含有接入设备的分组指示信息，该分组指示信息用于指示在发送第一消息帧之后进行数据传输的设备分组的信息。比如站点102、站点103和站点104归属于一个设备分组，那么接入点101生成的第一消息帧中可以包含针对站点102、站点103和站点104所属分组的指示信息，进而接入点101在发送第一消息帧之后，可以触发站点102、站点103和站点104进行数据传输，可见，本申请实施例的技术方案可以通过发送一个第一消息帧触发多个设备进行数据传输，减少了信令开销，进而可以提高系统的通信效率。
需要说明的是，本申请实施例所提供的通信方法一般由接入点101 执行，相应地，本申请实施例所提供的通信装置一般设置于接入点101中。
以下对本申请实施例的技术方案的实现细节进行详细阐述。
图2示出了根据本申请的一个实施例的通信方法的流程图，该通信方法可以由接入点来执行，该接入点可以是图1中所示的接入点101。参照图2所示，该通信方法至少包括步骤S210至步骤S220，详细介绍如下。
在步骤S210中，生成第一消息帧，所述第一消息帧中包含有接入设备的分组指示信息，所述分组指示信息用于指示在发送所述第一消息帧之后进行数据传输的设备分组的信息。
在本申请的一个实施例中，第一消息帧可以是触发帧，接入设备可以是站点设备。一个设备分组中可以包含一个或者多个接入设备。
在本申请的一个实施例中，分组指示信息可以包含有第一字段和至少一个第二字段。其中，第一字段用于指示在发送第一消息帧之后进行数据传输的设备分组的数量，该数量与第二字段的个数相同；第二字段用于指示在发送第一消息帧之后进行数据传输的设备分组的标识信息。比如，若第一字段指示的设备分组的数量为3，那么分组指示信息中可以包含有3个第二字段，每个第二字段指示相应的一个设备分组的标识信息。
在本申请的一个实施例中，分组指示信息中包含的各个第二字段在分组指示信息中的排列顺序用于表示各个第二字段所指示的设备分组的信道接入顺序。比如，若分组指示信息中包含有3个第二字段，这3个第二字段依次排列，且分别指示设备分组1、设备分组2和设备分组3，那么这三个设备分组的信道接入顺序依次为设备分组1、设备分组2和设备分组3。
在本申请的一个实施例中，设备分组中的各个设备的资源分配信息可以在第一消息帧之前通知给各个设备，具体地，如图3所示，本申请实施例的一个通信方法可以包括如下步骤S310和步骤S320。
在步骤S310中，在发送第一消息帧之前，生成第二消息帧，所述第二消息帧中包含有设备分组的标识信息，以及所述设备分组中的各个设备的资源分配信息。
在本申请的一个实施例中，设备的资源分配信息包括带宽资源信息、发送功率信息、上行发送的MCS(Modulation and Coding Scheme，调制与编码策略)、FEC(Forward Error Correction，前向纠错)信道编码等。
在本申请的一个实施例中，可以根据设备分组中所包含的各个设备的关联标识(Association Identifier，简称AID)生成设备分组的标识信息。
具体地，若设备分组中包含有一个设备，则可以根据设备分组中的一个设备的关联标识生成设备分组的标识信息。比如，可以将设备分组中的一个设备的关联标识的部分比特位的值作为设备分组的标识信息的各个比特位的值，如将关联标识的低12位作为设备分组的标识信息；或者可以将设备分组中的一个设备的关联标识的部分比特位的值作为设备分组的标识信息的部分比特位的值，如将关联标识的低8位作为设备分组的标识信息的低8位，设备分组的标识信息的高4位由接入点进行自定义；或者可以根据设备分组中的一个设备的关联标识的部分比特位的值与设定值进行运算得到的值设置设备分组的标识信息的各个比特位的值，如将关联标识的低11位与2046进行相加运算得到设备分组的标识信息。
具体地，若设备分组中包含有至少两个设备，则既可以如以上所描述的根据设备分组中的一个设备的关联标识生成设备分组的标识信息，也可以根据至少两个设备的关联标识生成设备分组的标识信息。比如，可以将至少两个设备的关联标识中的部分比特位进行拼接，得到设备分组的标识信息中的各个比特位。如根据设备分组中的三个设备的关联标识生成设备分组的标识信息时，可以分别取这三个设备的关联标识中的低4位进行拼接得到设备分组的标识信息。
继续参照图3所示，在步骤S320中，将所述第二消息帧发送给所 述设备分组中的各个设备。
图3所示实施例的技术方案使得能够将设备分组信息和设备分组中的各个设备的资源分配信息事先通知给各个设备，以便于各个设备在接收到第一消息帧后基于分配的资源进行数据传输。
基于前述实施例的技术方案，在本申请的一个实施例中，分组指示信息中还可以包含有至少一个第三字段，该第三字段的值用于指示在发送第一消息帧之后进行数据传输的至少一个设备的信息。该实施例的技术方案使得第一消息帧在触发设备分组的基础上，还可以触发至少一个设备来进行数据传输。
在本申请的一个实施例中，第三字段所指示的至少一个设备与第三字段的前一个第二字段所指示的设备分组中的设备在进行数据传输时具有相同的信道接入顺序。比如，第三字段指示的设备为设备4，第三字段的前一个第二字段所指示的设备分组中包含有设备1、设备2和设备3，那么设备4与设备1、设备2和设备3具有相同的信道接入顺序。
在本申请的一些实施例中，基于前述方案，第三字段包含有至少一个设备信息字段，每个设备信息字段用于指示一个设备的资源分配信息；每个设备信息字段中包含有指定比特位，该指定比特位的值用于表示下一个字段是否是设备信息字段。比如，设备信息字段为User Info，该指定比特位可以是User Info字段中的B39比特位，若B39＝1，则指示下一字段仍然是User Info；若B39＝0，则指示下一字段不是User Info。
继续参照图2所示，在步骤S220中，发送所述第一消息帧，以触发所述分组指示信息所指示的设备分组进行数据传输。
在本申请的一个实施例中，若第一消息帧为触发帧，则分组指示信息可以复用触发帧中的设备信息字段(即User Info字段)。
在本申请的一些实施例中，第一消息帧中还可以包含有触发类型字段，该触发类型字段用于指示第一消息帧的类型；其中，在第一消息帧为触发帧的情况下，该触发类型字段可以复用触发帧中的共同信 息字段(即Common Info字段)。
以下结合图4至图12，以上述的第一消息帧是触发帧为例，对本申请实施例中的技术方案进行详细阐述。
参照图4所示，802.11ax中的触发帧可以是PPDU(Presentation Protocol Data Unit，表示层协议数据单元，其是物理层协议数据单元)；PPDU是在MPDU(Media Access Control Protocol Data Unit，介质访问控制层协议数据单元)的基础上添加了物理层帧头部(PHY Header)和PE(帧扩展)字段形成的数据帧；MPDU包含了MAC层帧头部(MAC Header)、帧主体(Frame Body)和帧校验序列(Frame Check Sequence，简称FCS)。其中，MAC层帧头部包含了帧控制字段(Frame Control，简称FC)、长度字段(即Duration)、接收地址字段(Receiver Address，简称RA)、发送地址字段(Transmitter Address，简称TA)；帧主体包含了共同信息字段(即Common Info)、用户信息列表(即User Info List)、填充字段(即Padding)。
在本申请的一个实施例中，如图5所示为本申请实施例中的触发帧，其中可以通过设置触发帧中的“触发类型”字段的值来表示该触发帧是用于指示设备分组的触发帧，比如可以将“触发类型”字段的值设置为8(802.11ax中的触发帧的“触发类型”字段的预留值)。并且可以复用原始触发帧中的User Info字段作为分组指示字段。
在本申请的一个实施例中，分组指示字段包括“分组数量”字段和“分组ID”字段。其中，“分组数量”字段可以是4比特，“分组ID”字段可以是12比特。
在本申请的一个实施例中，“分组数量”字段用于表示后续共有多少次分组接入，即有多少个“分组ID”字段。0、8-15为“分组数量”字段的预留值；“分组数量”字段的值等于1-7即表示本申请实施例中所提出的触发帧会触发几次分组接入。“分组ID”字段用来指示预先定义的分组编号，由AP来分配。“分组数量”字段的值应该等于“分组ID”字段的个数。在图5所示实施例中，表示触发帧触发了一次分组接入，该 分组ID为分组3。具体的数据交互流程如图6所示，当AP发送触发帧(该触发帧指示分组数量为1，分组ID为3)之后，触发帧指示的分组3中的STA1、STA2和STA3发送PPDU，然后AP在接收到分组3中的各个STA发送的PPDU之后，进行多站点回复。
在本申请的一个实施例中，触发帧(“触发类型”字段的值可以为8)所触发的设备分组在发送上行数据时，应按照预先保存的分组ID对应的配置来发送。其中，这些配置包括设备分组中各站点的带宽资源分配、发送功率指示、上行发送MCS、FEC信道编码等。这些配置应在触发帧之前发送给各参与站点，站点在接收后应保存分组ID和对应的配置信息。在本申请的一个实施例中，可以利用新的元素来发送这些配置，如图7所示，可以包括：元素ID字段(即Element ID)、长度字段(即Length)、扩展字段(即Element ID Extension)、分组ID字段和用户信息列表字段(即User Info List)。并且在一个实施例中，元素ID字段可以为8比特、长度字段可以为8比特、扩展字段可以为8比特、分组ID字段可以为12比特、用户信息列表字段可以为多字节。
在本申请的一个实施例中，元素ID字段的值可以为255，扩展字段的值可以为61或者其它任何尚未被采用的合法值(处于0-255之间)；长度字段指示整个字段的字节数；分组ID字段指示了设备分组的ID；用户信息列表字段中包含一个或者多个User Info字段。其中，User Info字段的结构如图8所示，可以包括：关联标识字段(即AID)、资源分配字段(Resource Unit Allocation，RU Allocation)、上行FEC编码类型字段(UL FEC Coding Type)、上行调制与编码策略字段(UL MCS)、上行双载波调制字段(UL Dual Carrier Modulation，简称UL DCM)、空间流分配/随机访问-资源单元信息字段(spatial stream Allocation/Random Access-Resource Unit Information，SS Allocation/RA-RU Information)、上行目标RSSI字段(UL Target Received Signal Strength Indication，简称UL Target RSSI)、预留字段和依赖于触发帧的用户信息字段(即Trigger Dependent User Info)。其中，关联标识字段可以占 用12比特位、资源分配字段可以占用8比特位、上行FEC编码类型可以占用1比特位、上行调制与编码策略字段可以占用4比特位、上行双载波调制字段可以占用1比特位、空间流分配/随机访问-资源单元信息字段可以占用6比特位、上行目标RSSI字段可以占用7比特位、预留字段可以占用1比特位和依赖于触发帧的用户信息字段的长度可变。
在本申请的一个实施例中，设备分组中所包含的各个站点的带宽资源分配、发送功率指示等资源分配信息也可以按照其它格式通知给站点。
在本申请的一个实施例中，分组ID的设置可以遵循User Info字段中的AID子字段的设置。具体来说，可以按以下原则设置：
(1)分组ID字段的8比特设置可以和分组中的一个或者多个站点的AID关联，并加上2046得到。例如：
若分组2只有一个站点2(其AID为2)，则分组ID的12比特取该站点的AID的低11位，并加上2046，这里分组2对应的分组ID十进制应为2+2046＝2048；
若分组3中含有多个站点，则可以选其中一个站点，例如站点3(AID为3)，分组ID的12比特取该站点的AID＝3的低11位，并加上2046，这里分组3对应的分组ID十进制应为3+2046＝2049。
若分组中含有多个站点，如站点1、站点2和站点3，分组ID可以由多个参与站点的AID拼接而成。例如，分组ID的低4位为站点1的AID的低4位，分组ID的中4位为站点2的AID的低4位，分组ID的高4位为站点3的AID的低4位，然后加上2046得到最终的分组ID。
(2)分组ID字段的其中部分比特可以和参与分组的一个或者多个站点的AID关联，其余部分比特由AP自定义。例如，分组ID的12比特中的低8位可以为站点3的AID的低8位，分组ID中的高4位可以由AP自定义分配，例如按不同RTA业务分配区分。
需要说明的是：分组ID的值处于2046与4095之间，且不包含2046和4095。
在本申请的一个实施例中，如图9所示，触发帧可以触发多个设备分组接入，此时分组数量字段指示的值为3，且分组指示字段中包含有3个分组ID字段，比如可以分别用于指示分组3、分组2和分组4。如图9所示，根据分别指示分组3、分组2和分组4的分组ID字段在分组指示字段中的排列顺序，可以确定信道接入顺序依次为分组3、分组2和分组4，其中，分组3中的各站点发送的数据帧为基于触发帧的PPDU，分组2中的各站点在分组3中的各站点发送完成之后开始数据传输过程，分组4中的各站点在分组2中的各站点发送完成之后开始数据传输过程。具体的数据交互流程如图10所示，当AP发送触发帧(该触发帧指示分组数量为3)且经过SIFS(Short interframe space，短帧间间隔)之后，触发帧指示的分组3中的STA1、STA2和STA3先发送PPDU，分组3中的各站点发送完成且经过SIFS之后由分组2中的STA2发送PPDU，分组2中的各站点发送完成且经过SIFS之后由分组4中的STA4发送PPDU。最后AP在接收到各个分组中的STA发送的PPDU之后，进行多站点回复。
在图9所示的实施例中，由于触发帧可以触发多个设备分组接入，因此接入点应在触发帧之前发送分组ID＝3、2、4的配置信息给所触发的STA。其中，当分组ID＝3时，配置信息的元素(Element)中用户信息列表中包含3个用户信息字段；当分组ID＝2或4时，配置信息的Element中用户信息列表中都只包含1个用户信息字段。
在本申请的一个实施例中，触发帧在指示分组信息的基础上，还可以指示进行数据传输的站点的信息。具体地，如图11所示，触发帧的“触发类型”字段的值可以设置为9(与前述实施例中的8相区别，为802.11ax中的触发帧的“触发类型”字段的预留值)，其中分组指示字段中除了包含有“分组数量”和所指示的“分组ID”字段之外，还可以包含有“用户信息列表(User Info List)”字段。“分组数量”字段和“分组 ID”字段的定义及相关说明参照前述实施例的技术方案。其中，这里“用户信息列表(User Info List)”字段可以利用分组ID中未利用的带宽来触发其它站点来发送基于触发帧的PPDU(即TB PPDU)。
在本申请的一个实施例中，“用户信息列表(User Info List)”字段中包含有一个或多个“User Info”字段，可以利用该User Info中的B39预留比特指示下一字段是否为User Info，比如若B39＝1，则指示下一字段仍然是User Info；若B39＝0，则指示下一字段为非User Info。
在本申请的一个实施例中，“分组指示”字段中包含的“用户信息列表(User Info List)”字段所对应的STAs可以与前一个分组ID所对应的STAs一起发送PPDU。具体地，如图12所示，当AP发送触发帧(该触发帧指示分组信息)且经过SIFS之后，触发帧指示的分组3中的STA1、STA2和STA3，以及“分组指示”字段中分组ID＝3的后一个用户信息列表字段所指示的STA4和STA5先发送PPDU，STA1、STA2、STA3、STA4和STA5发送完成且经过SIFS之后，由分组2中的STA2以及“分组指示”字段中分组ID＝2的后一个用户信息列表字段所指示的STA4发送PPDU，STA2和STA4发送完成且经过SIFS之后由分组4中的STA4发送PPDU。最后AP在接收到各个分组中的STA发送的PPDU之后，进行多站点回复。
本申请上述实施例的技术方案通过分组指示信息可以实现静态的上行数据帧发送的调度，并降低了信令开销，具体是将触发帧中的common info和user info字段的指示信息静态化，固定为分组信息，进而可以在新的触发帧中只携带分组指示信息，完成所触发的站点指示和相关的带宽资源分配、发送功率指示等。同时使得一个触发帧可以触发多次TB PPDU的发送，进一步降低了信令开销，同时更满足RTA业务的需求。
以下介绍本申请的装置实施例，可以用于执行本申请上述实施例中的通信方法。对于本申请装置实施例中未披露的细节，请参照本申请上述的通信方法的实施例。
图13示出了根据本申请的一个实施例的通信装置的框图，该通信装置可以设置在接入点设备内。
参照图13所示，根据本申请的一个实施例的通信装置1300包括：生成单元1302和发送单元1304。
其中，生成单元1302用于生成第一消息帧，所述第一消息帧中包含有接入设备的分组指示信息，所述分组指示信息用于指示在发送所述第一消息帧之后进行数据传输的设备分组的信息；发送单元1304用于发送所述第一消息帧，以触发所述分组指示信息所指示的设备分组进行数据传输。
在本申请的一些实施例中，基于前述方案，所述分组指示信息包含有第一字段和至少一个第二字段；所述第一字段用于指示在发送所述第一消息帧之后进行数据传输的设备分组的数量，所述数量与所述第二字段的个数相同；所述第二字段用于指示在发送所述第一消息帧之后进行数据传输的设备分组的标识信息。
在本申请的一些实施例中，基于前述方案，所述分组指示信息中包含的各个第二字段在所述分组指示信息中的排列顺序用于表示所述各个第二字段所指示的设备分组的信道接入顺序。
在本申请的一些实施例中，基于前述方案，生成单元1302还用于：生成第二消息帧，所述第二消息帧中包含有设备分组的标识信息，以及所述设备分组中的各个设备的资源分配信息；发送单元1304还用于：在发送所述第一消息帧之前，将所述第二消息帧发送给所述设备分组中的各个设备。
在本申请的一些实施例中，基于前述方案，生成单元1302还用于根据所述设备分组中所包含的各个设备的关联标识，生成所述设备分组的标识信息。
在本申请的一些实施例中，基于前述方案，生成单元1302被配置为：若所述设备分组中包含有一个或多个设备，则根据所述设备分组中的一个设备的关联标识生成所述设备分组的标识信息；若所述设备分组中包含有至少两个设备，则根据所述至少两个设备的关联标识生 成所述设备分组的标识信息。
在本申请的一些实施例中，基于前述方案，生成单元1302被配置为根据所述设备分组中的一个设备的关联标识生成所述设备分组的标识信息的过程，包括：将所述设备分组中的一个设备的关联标识的部分比特位的值作为所述设备分组的标识信息的各个比特位的值；或者将所述设备分组中的一个设备的关联标识的部分比特位的值作为所述设备分组的标识信息的部分比特位的值；或者根据所述设备分组中的一个设备的关联标识的部分比特位的值与设定值进行运算得到的值设置所述设备分组的标识信息的各个比特位的值。
在本申请的一些实施例中，基于前述方案，生成单元1302被配置为根据所述至少两个设备的关联标识生成所述设备分组的标识信息的过程，包括：将所述至少两个设备的关联标识中的部分比特位进行拼接，得到所述设备分组的标识信息中的各个比特位。
在本申请的一些实施例中，基于前述方案，所述第一消息帧为触发帧，所述分组指示信息复用所述触发帧中的设备信息字段。
在本申请的一些实施例中，基于前述方案，所述第一消息帧中还包含有触发类型字段，所述触发类型字段用于指示所述第一消息帧的类型；其中，在所述第一消息帧为触发帧的情况下，所述触发类型字段复用所述触发帧中的共同信息字段。
在本申请的一些实施例中，基于前述方案，所述分组指示信息中还包含有至少一个第三字段；所述第三字段的值用于指示在发送所述第一消息帧之后进行数据传输的至少一个设备的信息。
在本申请的一些实施例中，基于前述方案，所述第三字段所指示的至少一个设备与所述第三字段的前一个第二字段所指示的设备分组中的设备在进行数据传输时具有相同的信道接入顺序。
在本申请的一些实施例中，基于前述方案，所述第三字段包含有至少一个设备信息字段，每个所述设备信息字段用于指示一个设备的资源分配信息；每个所述设备信息字段中包含有指定比特位，所述指定比特位的值用于表示下一个字段是否是所述设备信息字段。
图14示出了适于用来实现本申请实施例的电子设备的计算机系统的结构示意图。
需要说明的是，图14示出的电子设备的计算机系统1400仅是一个示例，不应对本申请实施例的功能和使用范围带来任何限制。
如图14所示，计算机系统1400包括中央处理单元(Central Processing Unit，CPU)1401，其可以根据存储在只读存储器(Read-Only Memory，ROM)1402中的程序或者从存储部分1408加载到随机访问存储器(Random Access Memory，RAM)1403中的程序而执行各种适当的动作和处理，例如执行上述实施例中所述的方法。在RAM 1403中还存储有系统操作所需的各种程序和数据。CPU 1401、ROM 1402以及RAM 1403通过总线1404彼此相连。输入/输出(Input/Output，I/O)接口1405也连接至总线1404。
以下部件连接至I/O接口1405：包括键盘、鼠标等的输入部分1406；包括诸如阴极射线管(Cathode Ray Tube，CRT)、液晶显示器(Liquid Crystal Display，LCD)等以及扬声器等的输出部分1407；包括硬盘等的存储部分1408；以及包括诸如LAN(Local Area Network，局域网)卡、调制解调器等的网络接口卡的通信部分1409。通信部分1409经由诸如因特网的网络执行通信处理。驱动器1410也根据需要连接至I/O接口1405。可拆卸介质1411，诸如磁盘、光盘、磁光盘、半导体存储器等等，根据需要安装在驱动器1410上，以便于从其上读出的计算机程序根据需要被安装入存储部分1408。
特别地，根据本申请的实施例，上文参考流程图描述的过程可以被实现为计算机软件程序。例如，本申请的实施例包括一种计算机程序产品，其包括承载在计算机可读介质上的计算机程序，该计算机程序包含用于执行流程图所示的方法的计算机程序。在这样的实施例中，该计算机程序可以通过通信部分1409从网络上被下载和安装，和/或从可拆卸介质1411被安装。在该计算机程序被中央处理单元(CPU)1401执行时，执行本申请的系统中限定的各种功能。
需要说明的是，本申请实施例所示的计算机可读介质可以是计算机可读信号介质或者计算机可读存储介质或者是上述两者的任意组合。计算机可读存储介质例如可以是——但不限于——电、磁、光、电磁、红外线、或半导体的系统、装置或器件，或者任意以上的组合。计算机可读存储介质的更具体的例子可以包括但不限于：具有一个或多个导线的电连接、便携式计算机磁盘、硬盘、随机访问存储器(RAM)、只读存储器(ROM)、可擦式可编程只读存储器(Erasable Programmable Read Only Memory，EPROM)、闪存、光纤、便携式紧凑磁盘只读存储器(Compact Disc Read-Only Memory，CD-ROM)、光存储器件、磁存储器件、或者上述的任意合适的组合。在本申请中，计算机可读存储介质可以是任何包含或存储程序的有形介质，该程序可以被指令执行系统、装置或者器件使用或者与其结合使用。而在本申请中，计算机可读的信号介质可以包括在基带中或者作为载波一部分传播的数据信号，其中承载了计算机可读的计算机程序。这种传播的数据信号可以采用多种形式，包括但不限于电磁信号、光信号或上述的任意合适的组合。计算机可读的信号介质还可以是计算机可读存储介质以外的任何计算机可读介质，该计算机可读介质可以发送、传播或者传输用于由指令执行系统、装置或者器件使用或者与其结合使用的程序。计算机可读介质上包含的计算机程序可以用任何适当的介质传输，包括但不限于：无线、有线等等，或者上述的任意合适的组合。
附图中的流程图和框图，图示了按照本申请各种实施例的系统、方法和计算机程序产品的可能实现的体系架构、功能和操作。其中，流程图或框图中的每个方框可以代表一个模块、程序段、或代码的一部分，上述模块、程序段、或代码的一部分包含一个或多个用于实现规定的逻辑功能的可执行指令。也应当注意，在有些作为替换的实现中，方框中所标注的功能也可以以不同于附图中所标注的顺序发生。例如，两个接连地表示的方框实际上可以基本并行地执行，它们有时也可以按相反的顺序执行，这依所涉及的功能而定。也要注意的是， 框图或流程图中的每个方框、以及框图或流程图中的方框的组合，可以用执行规定的功能或操作的专用的基于硬件的系统来实现，或者可以用专用硬件与计算机指令的组合来实现。
描述于本申请实施例中所涉及到的单元可以通过软件的方式实现，也可以通过硬件的方式来实现，所描述的单元也可以设置在处理器中。其中，这些单元的名称在某种情况下并不构成对该单元本身的限定。
作为另一方面，本申请还提供了一种计算机可读介质，该计算机可读介质可以是上述实施例中描述的电子设备中所包含的；也可以是单独存在，而未装配入该电子设备中。上述计算机可读介质承载有一个或者多个程序，当上述一个或者多个程序被一个该电子设备执行时，使得该电子设备实现上述实施例中所述的方法。
应当注意，尽管在上文详细描述中提及了用于动作执行的设备的若干模块或者单元，但是这种划分并非强制性的。实际上，根据本申请的实施方式，上文描述的两个或更多模块或者单元的特征和功能可以在一个模块或者单元中具体化。反之，上文描述的一个模块或者单元的特征和功能可以进一步划分为由多个模块或者单元来具体化。
通过以上的实施方式的描述，本领域的技术人员易于理解，这里描述的示例实施方式可以通过软件实现，也可以通过软件结合必要的硬件的方式来实现。因此，根据本申请实施方式的技术方案可以以软件产品的形式体现出来，该软件产品可以存储在一个非易失性存储介质(可以是CD-ROM，U盘，移动硬盘等)中或网络上，包括若干指令以使得一台计算设备(可以是个人计算机、服务器、触控终端、或者网络设备等)执行根据本申请实施方式的方法。
本领域技术人员在考虑说明书及实践这里公开的实施方式后，将容易想到本申请的其它实施方案。本申请旨在涵盖本申请的任何变型、用途或者适应性变化，这些变型、用途或者适应性变化遵循本申请的一般性原理并包括本申请未公开的本技术领域中的公知常识或惯用技术手段。
应当理解的是，本申请并不局限于上面已经描述并在附图中示出的精确结构，并且可以在不脱离其范围进行各种修改和改变。本申请的范围仅由所附的权利要求来限制。

Claims (16)

  1. 一种通信方法，由电子设备执行，包括：
    生成第一消息帧，所述第一消息帧中包含有接入设备的分组指示信息，所述分组指示信息用于指示在发送所述第一消息帧之后进行数据传输的设备分组的信息；
    发送所述第一消息帧，以触发所述分组指示信息所指示的设备分组进行数据传输。
  2. 根据权利要求1所述的通信方法，所述分组指示信息包含有第一字段和至少一个第二字段；
    所述第一字段用于指示在发送所述第一消息帧之后进行数据传输的设备分组的数量，所述数量与所述第二字段的个数相同；
    所述第二字段用于指示在发送所述第一消息帧之后进行数据传输的设备分组的标识信息。
  3. 根据权利要求2所述的通信方法，所述分组指示信息中包含的各个第二字段在所述分组指示信息中的排列顺序用于表示所述各个第二字段所指示的设备分组的信道接入顺序。
  4. 根据权利要求2所述的通信方法，在发送所述第一消息帧之前，所述通信方法还包括：
    生成第二消息帧，所述第二消息帧中包含有设备分组的标识信息，以及所述设备分组中的各个设备的资源分配信息；
    将所述第二消息帧发送给所述设备分组中的各个设备。
  5. 根据权利要求4所述的通信方法，还包括：
    根据所述设备分组中所包含的各个设备的关联标识，生成所述设备分组的标识信息。
  6. 根据权利要求5所述的通信方法，所述根据所述设备分组中所包含的各个设备的关联标识，生成所述设备分组的标识信息，包括：
    若所述设备分组中包含有一个设备，则根据所述设备分组中的一个设备的关联标识生成所述设备分组的标识信息；
    若所述设备分组中包含有至少两个设备，则根据所述设备分组中 的一个设备的关联标识生成所述设备分组的标识信息，或者根据所述至少两个设备的关联标识生成所述设备分组的标识信息。
  7. 根据权利要求6所述的通信方法，所述根据所述设备分组中的一个设备的关联标识生成所述设备分组的标识信息，包括：
    将所述设备分组中的一个设备的关联标识的部分比特位的值作为所述设备分组的标识信息的各个比特位的值；或者
    将所述设备分组中的一个设备的关联标识的部分比特位的值作为所述设备分组的标识信息的部分比特位的值；或者
    根据所述设备分组中的一个设备的关联标识的部分比特位的值与设定值进行运算得到的值，设置所述设备分组的标识信息的各个比特位的值。
  8. 根据权利要求6所述的通信方法，所述根据所述至少两个设备的关联标识生成所述设备分组的标识信息，包括：
    将所述至少两个设备的关联标识中的部分比特位进行拼接，得到所述设备分组的标识信息中的各个比特位。
  9. 根据权利要求1所述的通信方法，所述第一消息帧为触发帧，所述分组指示信息复用所述触发帧中的设备信息字段。
  10. 根据权利要求1所述的通信方法，所述第一消息帧中还包含有触发类型字段，所述触发类型字段用于指示所述第一消息帧的类型；
    其中，在所述第一消息帧为触发帧的情况下，所述触发类型字段复用所述触发帧中的共同信息字段。
  11. 根据权利要求2至10中的任一项所述的通信方法，所述分组指示信息中还包含有至少一个第三字段；
    所述第三字段的值用于指示在发送所述第一消息帧之后进行数据传输的至少一个设备的信息。
  12. 根据权利要求11所述的通信方法，所述第三字段所指示的至少一个设备与所述第三字段的前一个第二字段所指示的设备分组中的设备在进行数据传输时具有相同的信道接入顺序。
  13. 根据权利要求11所述的通信方法，所述第三字段包含有至少 一个设备信息字段，每个所述设备信息字段用于指示一个设备的资源分配信息；
    每个所述设备信息字段中包含有指定比特位，所述指定比特位的值用于表示下一个字段是否是所述设备信息字段。
  14. 一种通信装置，包括：
    生成单元，用于生成第一消息帧，所述第一消息帧中包含有接入设备的分组指示信息，所述分组指示信息用于指示在发送所述第一消息帧之后进行数据传输的设备分组的信息；和
    发送单元，用于发送所述第一消息帧，以触发所述分组指示信息所指示的设备分组进行数据传输。
  15. 一种计算机可读介质，其上存储有计算机程序，所述计算机程序被处理器执行时实现如权利要求1至13中的任一项所述的通信方法。
  16. 一种电子设备，包括：
    一个或多个处理器；
    存储装置，用于存储一个或多个程序，当所述一个或多个程序被所述一个或多个处理器执行时，使得所述一个或多个处理器实现如权利要求1至13中的任一项所述的通信方法。
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