WO2021008401A1 - 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

Info

Publication number
WO2021008401A1
WO2021008401A1 PCT/CN2020/100401 CN2020100401W WO2021008401A1 WO 2021008401 A1 WO2021008401 A1 WO 2021008401A1 CN 2020100401 W CN2020100401 W CN 2020100401W WO 2021008401 A1 WO2021008401 A1 WO 2021008401A1
Authority
WO
WIPO (PCT)
Prior art keywords
data transmission
data
message frame
wireless communication
access
Prior art date
Application number
PCT/CN2020/100401
Other languages
English (en)
French (fr)
Inventor
王涛
Original Assignee
腾讯科技（深圳）有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 腾讯科技（深圳）有限公司 filed Critical 腾讯科技（深圳）有限公司
Priority to JP2021552181A priority Critical patent/JP7271700B2/ja
Priority to EP20839715.8A priority patent/EP3998830A4/en
Publication of WO2021008401A1 publication Critical patent/WO2021008401A1/zh
Priority to US17/329,851 priority patent/US11937294B2/en

Links

Images

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/08—Non-scheduled access, e.g. ALOHA
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/02—Hybrid access
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/56—Allocation or scheduling criteria for wireless resources based on priority criteria
    • H04W72/566—Allocation or scheduling criteria for wireless resources based on priority criteria of the information or information source or recipient
    • H04W72/569—Allocation or scheduling criteria for wireless resources based on priority criteria of the information or information source or recipient of the traffic information
    • 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
    • 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

  • This application relates to the field of computer and communication technology, and in particular to a communication method, device, computer readable medium and electronic equipment.
  • the embodiments of the present application provide a communication method, device, computer readable medium, and electronic device, which can improve channel utilization and communication efficiency between devices at least to a certain extent.
  • a communication method which is executed by an electronic device, and the method includes: generating a wireless communication message frame, the wireless communication message frame containing information about each device that needs to access a channel , And the access sequence of each device; if the information of the available transmission channel is obtained, the wireless communication message frame is sent to start the data transmission process, and instruct each device in the access sequence in the In the data transmission process, communication data is sent sequentially through the transmission channel.
  • a communication method which is executed by an electronic device, and the method includes: receiving a wireless communication message frame, the wireless communication message frame contains each device that needs to access a designated transmission channel And the access sequence of each device; if the wireless communication message frame contains the information of the specified device, monitor the specified transmission channel; if the specified device is monitored on the specified transmission channel When the data transmission of the previous device based on the access sequence is completed, and the designated transmission channel is monitored to be idle, the designated device sends communication data through the designated transmission channel.
  • a communication device including: a generating unit, configured to generate a wireless communication message frame, the wireless communication message frame contains information of each device that needs to access the channel, and The access sequence of each device; the sending unit is used to send the wireless communication message frame to start the data transmission process when the information of the available transmission channel is obtained, and instruct the devices to perform the data transmission according to the access sequence In the data transmission process, communication data is sent sequentially through the transmission channel.
  • a communication device including: a receiving unit, configured to receive a wireless communication message frame, the wireless communication message frame containing information about each device that needs to access a designated transmission channel, And the access sequence of each device; a monitoring unit, for monitoring the designated transmission channel when the wireless communication message frame contains information about a designated device; a transmission unit, for monitoring the designated transmission channel When it is detected that the data transmission of the previous device based on the access sequence of the designated device is completed, and the designated transmission channel is detected to be idle, the designated device sends communication data through the designated transmission channel.
  • 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 When multiple processors are executed, the one or more processors implement the communication method described in the foregoing embodiment.
  • a wireless communication message frame containing the information of each device that needs to access the channel and the access sequence of each device is generated, and when the available transmission channel is obtained When sending information, the wireless communication message frame is sent to start the data transmission process to instruct each device to send communication data through the transmission channel in the data transmission process according to the access sequence, so that after obtaining the available transmission channel, Multiple devices send data based on the transmission channel in turn, which avoids the need for channel competition for each device when sending data and increases signaling overhead, and realizes a more reasonable multi-device channel access control strategy, thereby improving channel performance Utilization rate and communication efficiency between devices.
  • the designated transmission channel is monitored, and the data transmission of the previous device based on the access sequence of the designated device is detected on the designated transmission channel, and the designated transmission channel is free.
  • the designated device sends communication data through the designated transmission channel. On the one hand, it can avoid the need for channel competition for each device when sending data and increase the signaling overhead. On the other hand, it also enables each device to pass the designated transmission channel in a reasonable and orderly manner.
  • the transmission channel sends data, which in turn helps to improve channel utilization and communication efficiency between devices.
  • 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;
  • Figure 2 shows a flowchart of a communication method according to an embodiment of the present application
  • FIG. 3 shows a structural diagram of a wireless communication message frame according to an embodiment of the present application
  • Figure 4 shows a structural diagram of a wireless communication message frame according to an embodiment of the present application
  • Fig. 5 shows a flowchart of a communication method according to an embodiment of the present application
  • Fig. 6 shows a flowchart of a communication method according to an embodiment of the present application
  • FIG. 7 shows a schematic diagram of a processing flow of an STA according to an embodiment of the present application.
  • FIG. 8 shows a schematic diagram of an AP processing flow according to an embodiment of the present application.
  • Fig. 9 shows a flowchart of a packet access process according to an embodiment of the present application.
  • Fig. 10 shows a flowchart of a packet access process according to an embodiment of the present application
  • Fig. 11 shows a scene diagram of mutually hidden nodes according to an embodiment of the present application.
  • Fig. 12 shows a flowchart of a packet access process according to an embodiment of the present application
  • Fig. 13 shows a scene diagram of an interference situation according to an embodiment of the present application
  • Figure 14 shows a flowchart of a packet access process according to an embodiment of the present application
  • Fig. 15 shows a flowchart of a packet access process according to an embodiment of the present application
  • Fig. 16 shows a flowchart of a packet access process according to an embodiment of the present application
  • Fig. 17 shows a flowchart of a packet access process according to an embodiment of the present application
  • Fig. 18 shows a block diagram of a communication device according to an embodiment of the present application.
  • Fig. 19 shows a block diagram of a communication device according to an embodiment of the present application.
  • FIG. 20 shows a schematic structural diagram of a computer system suitable for implementing an electronic device according to an embodiment of the present application.
  • 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, and a station 103.
  • the access point 101, the station 102, and the station 103 form a wireless local area network (Local Area Network, LAN for short).
  • the site can be a smartphone, tablet, laptop, 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 wireless communication message frame, the wireless communication message frame may be a trigger frame, the wireless communication message frame contains information about each device that needs to access the channel, and the The access sequence of each device. After the access point 101 obtains the available transmission channel information, it can send the wireless communication message frame to start the data transmission process, and instruct each device included in the wireless communication message frame to perform the data transmission process in accordance with the access sequence. In order to send communication data through the transmission channel.
  • the access point 101 can send the wireless communication after obtaining the available transmission channel.
  • Message frame After the station 102 receives the wireless communication message frame, it can learn the information of the transmission channel according to the wireless communication message frame, and then after monitoring that the channel is idle, it can send communication data through the transmission channel; when the station 103 receives the wireless communication frame After the communication message frame, it can be known from the wireless communication message frame that it needs to transmit data through the station 102 before it can transmit data through the transmission channel. Therefore, the station 103 can monitor the transmission channel.
  • the station 103 can send data through the transmission channel. It can be seen that, on the one hand, the technical solution of the embodiments of the present application can avoid the need for channel competition for each device to send data and increase the signaling overhead, on the other hand, it also enables each device to send data through the designated transmission channel in a reasonable and orderly manner Data, which in turn helps to improve channel utilization and communication efficiency between devices.
  • 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 device, for example, may be executed by 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 wireless communication message frame is generated, and the wireless communication message frame contains the information of each device that needs to access the channel and the access sequence of each device.
  • the wireless communication message frame may be a trigger frame.
  • Each device that needs to access the channel may include a site device that needs to access the channel to send data, and may also include an access point device that needs to access the channel to send data.
  • the wireless communication message frame may be a PPDU (Presentation Protocol Data Unit, presentation layer protocol data unit); PPDU is in MPDU (MAC Protocol Data Unit, MAC protocol data unit) The data frame formed by the physical layer frame header (PHY Header) and PAD (padding) bits is added on the basis of the MPDU; and the MPDU is based on the MSDU (MAC Service Data Unit, MAC service data unit) with MAC (Media Access Control, media access control) layer frame header (MAC Header) to form a data frame; MSDU contains access parameter information, FCS (Frame Check Sequence, frame check sequence) and the information of each device that needs to access the channel ( STA1, STA2, and STA3 as shown in FIG. 3), where the arrangement order of the information of these devices indicates the access sequence of each device. As shown in Figure 3, the access sequence of STA1 is before STA2, and the access sequence of STA2 is before STA3.
  • PPDU Presentation Protocol Data Unit, presentation layer protocol data unit
  • MPDU MAC Protocol Data
  • the wireless communication message frame may be a PPDU.
  • the information of each device that needs to access the channel and the information of the access sequence of each device can be added to the MAC layer header part of the wireless communication message frame.
  • the information of the access sequence of each device may also be represented by the sequence of the information of each device.
  • information about each device that needs to access the channel and information about the access sequence of each device may also be added to the physical layer frame header of the wireless communication message frame.
  • the wireless communication message frame may also include first indication information, which is used to indicate that the priority of the data frame sent by each device in the data transmission process is greater than or equal to the specified priority. That is, the first indication information included in the wireless communication message frame is used to indicate service priority information, and the priority of the data frame sent by each device in the data transmission process may be greater than or equal to the service priority indicated by the first indication information.
  • the wireless communication message frame may also include the maximum duration of the data transmission process, or may also include a message indicating the modulation and coding strategy (Modulation and Coding Scheme, MCS for short) used for data transmission. Fourth instruction information.
  • MCS Modulation and Coding Scheme
  • step S220 if the information of the available transmission channel is acquired, the wireless communication message frame is sent to start the data transmission process, and instruct the devices to be in all locations in accordance with the access sequence.
  • communication data is sent sequentially through the transmission channel.
  • the access point device may obtain the information of the available transmission channel through channel competition. Or the access point device may also communicate and negotiate with other access point devices to obtain information about available transmission channels.
  • each device included in the wireless communication message frame may send communication data through the transmission channel after monitoring that the data transmission of the previous device is completed and when it is detected that the transmission channel is idle.
  • the access point device may send a message frame to close the data transmission process after detecting that the data transmission of the last device in the access sequence is completed.
  • the message frame may include at least one field, which is used to indicate that the current data transmission process is closed.
  • a message frame to close the data transmission process can also be sent in time .
  • a message frame that closes the data transmission process may be sent.
  • the access point device when it sends the wireless communication message frame, it can determine the access sequence and the allowed transmission time length of each device in the packet corresponding to the wireless communication message frame. For example, the first predetermined duration starts from the time when the access point device detects that the communication data (data frame) of the previous device of the target device is completed.
  • the target device is the first device in the group, the first predetermined time is counted, for example, after the access point device sends the wireless communication message frame.
  • a new wireless communication message frame may be generated, and the data transmission duration indicated by the new wireless communication message frame is less than or equal to the closed data transmission process The remaining transmission time.
  • the remaining transmission time by using the remaining transmission time, different levels of requirements can be met. For example, when there are fewer grouped devices and the required communication duration is relatively short, the "remaining transmission duration" can be used to meet the communication requirements to improve the utilization of the air interface.
  • the second device or the first device may not be turned on for the second predetermined period of time.
  • the data transfer process prevents the data transmission process including the second device or the first device from being started within the second predetermined period of time, so as to prevent continuous interference between the first device and the second device from affecting data transmission.
  • the second predetermined period of time starts, for example, when the access point device detects that the data transmission of the first device and the data transmission of the second device that are interfering are completed.
  • the first device can be turned on on a transmission channel other than the transmission channel of the first device.
  • the data transmission process of the device enables the data transmission process for the second device on another transmission channel different from the transmission channel of the first device, so as to prevent the first device and the second device from causing interference on the same transmission channel. data transmission.
  • the wireless communication message frame may also include second indication information and third indication information.
  • the second indication information is used to indicate the priority of the data frame sent by each device in the data transmission process.
  • the level is equal to the specified priority
  • the third indication information is used to indicate whether the transmission of service data higher than the specified priority is allowed in the data transmission process; wherein, if the third indication information indicates that the transmission is allowed to be higher than the specified priority in the data transmission process
  • the target service data of the designated priority is allowed to be transmitted in the transmission channel after the data transmission of the last device in the access sequence is completed.
  • a message frame for closing the data transmission process is sent.
  • the foregoing third indication information indicates that the target service data higher than the specified priority is allowed to be transmitted in the data transmission process
  • the data transmission of the last device is completed If the target service data is not received within the next third predetermined time period, a message frame for closing the data transmission process is sent.
  • the foregoing third indication information indicates that the target service data higher than the specified priority is allowed to be transmitted in the data transmission process
  • a message frame for closing the data transmission process is sent.
  • each device included in the wireless communication message frame since each device included in the wireless communication message frame starts to transmit data after monitoring that the data transmission of the previous device is completed, if there are hidden nodes between the devices, it may cause data transmission
  • the process is interrupted, so the embodiment of the present application provides the processing process shown in FIG. 5, which specifically includes the following steps:
  • Step S510 Determine whether there is a hidden node of the target device in each device according to the data transmission situation of each device.
  • the target device can be any device included in the wireless communication message frame. If a device is too far away from the target device to receive the data sent by the target device, the device can be used as The hidden node of the target device.
  • Step S520 If there is a hidden node of the target device, when a wireless communication message frame is generated again, the target device and the hidden node are included in different wireless communication message frames.
  • the technical solution of the embodiment shown in FIG. 5 includes the target device and the hidden node in different wireless communication message frames, so as to avoid the interruption of the data transmission process by setting the devices that are mutually hidden nodes in the same data transmission process. The problem.
  • FIG. 6 shows a flowchart of a communication method according to an embodiment of the present application.
  • the communication method may be executed by a device as a station, for example, the station 102 or the station 103 shown in FIG. 1 may be executed.
  • the communication method includes at least step S610 to step S630, which are described in detail as follows:
  • step S610 a wireless communication message frame is received, and the wireless communication message frame contains information about each device that needs to access the designated transmission channel, and the access sequence of each device.
  • the wireless communication message frame may be a trigger frame.
  • the designated transmission channel may be an available transmission channel obtained by the access point device. Wherein, the designated transmission channel may be acquired by the access point device through channel competition, or may also be acquired through communication and negotiation with other access point devices.
  • step S620 if the wireless communication message frame contains information of a designated device, the designated transmission channel is monitored.
  • the wireless communication message frame contains information about a designated device, it means that the designated device can transmit data through the designated transmission channel. Therefore, the designated device can monitor the designated transmission channel.
  • step S630 if it is detected on the designated transmission channel that the data transmission of the previous device of the designated device based on the access sequence is completed, and the designated transmission channel is detected to be idle, then the designated device The communication data is transmitted through the designated transmission channel.
  • a device when a device can monitor the data frame sent by the previous device on the designated transmission channel, it can determine that the data transmission of the previous device is completed. That is, the technical solution of this embodiment does not require each device to monitor the reception confirmation information for the data frame sent by the previous device.
  • the technical solution of this embodiment requires each device to monitor the reception confirmation information (ie ACK) for the data frame sent by the previous device.
  • the AP will reply ACK information for the data frame sent by each device.
  • the device listens to the ACK information that the AP replies to the data frame sent by the previous device, it determines that the data transmission of the previous device is completed.
  • the wireless communication message frame may also include indication information for indicating an ACK reply strategy, which is used to indicate that the AP will reply ACK information for the data frame sent by each device, and each device needs to monitor After the ACK information for the data frame sent by the previous device, it is determined whether to start sending the data frame.
  • indication information for indicating an ACK reply strategy which is used to indicate that the AP will reply ACK information for the data frame sent by each device, and each device needs to monitor After the ACK information for the data frame sent by the previous device, it is determined whether to start sending the data frame.
  • the access point AP can perform channel access by scheduling grouped STAs.
  • STAs do not need to compete for channels, and only need to access channels sequentially through the access sequence defined by AP That is, it is possible to avoid channel competition between STAs and increase signaling overhead, which is beneficial to improve channel utilization and communication efficiency between devices.
  • the AP and the AP can obtain the available channels through channel competition, for example, through CSMA/CA (Carrier Sensing Multiple Access/Collision Avoidance, carrier sensing multiple access/collision Avoid) backoff methods, such as EDCA (Enhanced Distributed Channel Access) to compete for available channels, or the available channel information can be determined through negotiation between APs.
  • the AP can send a trigger frame to define the duration of the entire access process. All STAs that receive the trigger frame can set NAV (Network Allocation Vector) according to the indicated duration. , No access to the channel is allowed within the NAV setting time period.
  • the duration set by the NAV is, for example, the timing from the moment when the STA receives the trigger frame.
  • EDCA is a control channel access protocol for wireless transmission.
  • EDCA is based on CSMA/CA and allows compatible PHYs (Physical, physical layer) to share wireless media.
  • PHYs Physical, physical layer
  • the PHY can know whether the wireless medium is idle by performing physical sensing in each time slot.
  • EDCA will select a random integer value from a certain range as the initial backoff time.
  • EDCA will start backoff, that is The backoff timer is subtracted by 1.
  • EDCA judges that the contention channel access is successful, that is, it obtains the transmission opportunity TXOP, and starts to send data; if the medium is detected to be busy in a time slot during the backoff process, the backoff will temporarily hang , When it detects that it is idle again, the previous backoff will continue, and when the backoff timer of two devices at the same time is 0, a collision will occur.
  • Access Category In addition, four types of access categories AC (Access Category) are defined in the EDCA protocol, and the priorities are VO, VI, BE, and BK from high to low, representing voice, video, and best effort respectively. And it is the (Best Effort) category and the background (Background) category.
  • the aforementioned trigger frame may be an extension of a trigger frame based on 802.11ax, or may be a newly defined frame.
  • the trigger frame should contain the address of each STA that needs to be accessed and the access sequence. All STAs that receive the trigger frame and are in the access sequence should keep channel monitoring and immediately access the channel when the conditions are met.
  • the trigger frame can include access parameters to define the maximum length of the STA's access channel, the minimum MCS, etc., and then the STA must comply with the access parameters defined in the trigger frame when subsequently sending data.
  • the structure of the trigger frame may be as shown in FIG. 3, where the sequential positions of STA1, STA2, and STA3 in the MSDU represent the access sequence.
  • the trigger frame can also be shown in FIG. 4, indicating the STA grouping information through the signal part of the frame header.
  • the grouping information may include the address and access sequence of the STAs in the group, and the corresponding service priority indication.
  • one STA can appear at most once in a trigger frame, and each STA can only send at most one PPDU, and the grouping information should include at least one STA.
  • the difference between the PPDU sent by the STA and the PPDU of the trigger frame in Figure 3 above is that the MSDU part (the payload of the PPDU) is different.
  • the MSDU in the PPDU sent by the STA may be specific service data.
  • the grouping information indicated in the trigger frame can be associated with the service priority.
  • the priority of the frame data sent by the STA should be greater than or equal to the corresponding packet Priority. For example, if a certain group corresponds to a service priority of VI, then STAs in the group can send PPDUs with priority VI or higher than VI, for example, PPDUs with priority VI or VO. And one STA may appear in multiple different access packets, corresponding to different service priorities.
  • the processing flow of the STA mainly includes the following steps:
  • Step S701 After receiving the trigger frame, the STA judges whether it is in the group defined by the trigger frame; if so, execute step S702; otherwise, set NAV. Among them, the STA can determine whether it is in the group defined by the trigger frame by determining whether its address is included in the trigger frame.
  • the address of the STA may be a MAC address, AID (Association Identification, connection identification) and/or other identifications.
  • Step S702 the STA records the address of the previous STA in the access sequence.
  • Step S703 The STA monitors the access channel indicated by the trigger frame.
  • step S704 the STA judges whether a data frame is received through the monitored access channel, and if so, performs step S705; otherwise, returns to step S703 to continue monitoring the access channel.
  • step S705 the STA judges whether the monitored data frame comes from the previous STA in the access sequence, and if so, executes step S706; otherwise, returns to step S703 to continue to monitor the access channel.
  • Step S706 The STA monitors the access channel indicated by the trigger frame.
  • step S707 the STA judges whether the access channel is idle, and if so, sends data through the access channel; otherwise, it returns to step S706 to continue monitoring whether the access channel is idle.
  • the STA can determine that the channel is idle after the monitoring channel changes from busy to no signal transmission and remains for a period of time.
  • the maintained period of time may be SIFS (Short Interframe Space, short interframe space), or other time lengths.
  • the processing flow of AP mainly includes the following steps:
  • Step S801 the AP sends a trigger frame to set the access duration for the designated channel. After sending the trigger frame, the AP should keep channel monitoring to confirm whether the channel access is performed according to the plan, that is, whether the STAs in the monitoring access sequence send PPDUs in sequence.
  • step S802 the AP judges whether the PPDU is received through the designated channel, and if so, executes step S803; otherwise, waits for a period of time (for example, it may be SIFS) and executes step S807.
  • a period of time for example, it may be SIFS
  • step S803 it is judged whether the received PPDU decoding is correct, and if so, step S804 is executed; otherwise, it waits for a period of time (for example, it may be SIFS) and executes step S807. Among them, if the STA has a collision during data transmission, the AP may not be able to decode successfully after receiving the PPDU of the STA.
  • a period of time for example, it may be SIFS
  • Step S804 It is judged whether the received PPDU comes from the next STA in the access sequence, if so, step S805 is executed; otherwise, step S810 is executed.
  • the station before the first station in the trigger frame may be the AP that sends the trigger frame.
  • the AP receives the PPDU for the first time, it is judged whether the received PPDU is sent by the first STA after the AP. For other PPDUs, the AP can determine whether the received PPDU is the next STA in the access sequence from the STA that has received the PPDU.
  • Step S805 It is judged whether the received PPDU comes from the last STA in the access sequence, if yes, step S806 is executed; otherwise, step S809 is executed.
  • Step S806 wait for the completion of the PPDU reception, and then wait for a period of time (for example, it may be SIFS), and then return to step S802.
  • a period of time for example, it may be SIFS
  • Step S807 It is judged whether there is enough access time remaining in the access time defined by the trigger frame, if yes, step S808 is executed; otherwise, step S810 is executed.
  • the AP has calculated the total duration of this data transmission process, that is, the access duration, before sending the trigger frame in step S801, and may include the access duration in the trigger frame.
  • the AP can know the remaining access time according to the access time and the duration of the current data transmission. After that, the AP compares the remaining access duration with the sum of the duration required to send the message frame in step S809 plus the duration of the necessary interval between frames to determine whether sufficient access duration remains.
  • Step S808 it is judged whether the channel is idle, if yes, then step S809 is executed; otherwise, it returns to step S807.
  • Step S809 Send a message frame to close the current access process.
  • Step S810 It is determined that the transmission fails, and the access procedure is stopped.
  • the AP may delete STAs that have not successfully sent the PPDU from the current packet to ensure the access efficiency of the packet.
  • the AP initiates a packet access procedure by sending a trigger frame, and the STAs included in the trigger frame sequentially access the channel according to the access sequence.
  • the STA access sequence can be STA1-STA2-STA3, then after STA1 sends a PPDU to the AP through the channel, STA2 monitors the transmission and end of the PPDU of STA1 on the channel, and then monitors that the channel is idle and after waiting for SIFS , Start sending; similarly, after STA2 sends a PPDU to AP through a channel, STA3 monitors the sending and end of the PPDU of STA2 on the channel, and then monitors that the channel is idle and waits for SIFS, and then starts sending PPDUs of STA3. After receiving the PPDU of the last STA3 in the access sequence, the AP can send a frame to close the process.
  • the AP may also include the AP as an access STA in the packet in the trigger frame.
  • the AP initiates a packet access process by sending a trigger frame, and the access sequence defined in the trigger frame is STA1—STA2—AP—STA3.
  • STA2 monitors the transmission and termination of the PPDU of STA1 on the channel, and then monitors that the channel is idle and waits for SIFS, and then starts to send the PPDU of STA2; when the AP receives the PPDU sent by STA2 After that, the listening channel is idle, and after SIFS, AP sends PPDU to STA1; after STA3 receives the PPDU sent by AP, the listening channel is idle, and after SIFS, it starts to send PPDU of STA3. After receiving the PPDU of the last STA3 in the access sequence, the AP can send a frame to close the process.
  • the AP may only appear at most once in the access sequence.
  • some services may have requirements for bidirectional transmission. For example, after STA1 sends a PPDU to the AP, it may need to obtain downlink confirmation or downlink data sent by the AP as soon as possible.
  • the AP By including the AP as an access STA in the packet, the flexibility of the packet access procedure and the adaptability of different scenarios can be improved.
  • the problem of hidden nodes (Hidden Node) will be more serious.
  • STA2 and STA3 are hidden nodes on 6GHz each other, that is, they cannot receive PPDUs from each other.
  • the access sequence is STA1-STA2-STA3
  • STA3 cannot receive the PPDU. In this case, because STA3 is not satisfied STA3 will always keep monitoring and will not send any PPDU.
  • the AP can continue to wait for a period of time (the total waiting time can be DIFS (Distributed Inter-frame Spacing, distributed) After the inter-frame gap)), choose to send a frame to close the current access process, or as shown in Figure 12, the AP sends a new trigger frame to define a new access packet and start a new access process.
  • the access duration defined by the newly initiated access process may be less than or equal to the remaining access duration of the previous access process. In this way, the utilization rate of the air interface can be improved.
  • the AP can detect network conditions through this access process. For example, STA2 and STA3 are mutually hidden nodes. Therefore, in the next access grouping, the AP can re-plan group STAs to avoid the same group of STA2 and STA3. For example, in the access process 2 shown in FIG. 12, the second access process initiated by the AP only includes the access sequence of STA3-STA1, and STA2 is not included in the packet.
  • the PPDU transmission of a certain STA in the access process may be interfered.
  • the interference may come from STAs in a neighboring BSS (Basic Service Set), or other unknown interference.
  • BSS Basic Service Set
  • STA4 did not receive the trigger frame sent by the AP, so the PPDU was also sent during the process of sending the PPDU by STA3, causing two PPDUs to reach the AP at the same time and send collision.
  • the AP monitors the collision it should wait for the channel to be idle, and after a period of time (such as EIFS (Extending Inter-frame Spacing)), then initiate the backoff access mechanism.
  • EIFS ending Inter-frame Spacing
  • the AP can learn that STA3 may be currently vulnerable to interference through this access process, so it can avoid re-initiating packet access including STA4 for a period of time. And after a period of time, as shown in FIG. 14, when the AP regains channel access through the backoff mechanism, the AP can initiate packet access to STA3 again.
  • the period of time may include a period of EIFS time starting from the completion of PPDU transmission of STA3 or STA4 (the latter of the two).
  • the AP can also initiate packet access including STA4 again on other channels to avoid generating STA3 on the current channel. interference.
  • the STA in the packet needs to monitor the ACK for the PPDU sent by the previous STA After the information is sent, and the channel is detected to be free, it will be sent.
  • the PPDU sent by the STA must be a PPDU that needs to reply ACK immediately.
  • the STAs in the triggered access sequence should set the sending condition as the channel is idle after the AP sends an ACK, and the address indicated by the ACK should be the address of the previous STA (that is, the address sent by the AP) ACK is the confirmation information for the PPDU sent by the previous STA).
  • AP replies with ACK information for the PPDU sent by STA1, and STA2 listens to the ACK information sent by AP for the PPDU sent by STA1 on the channel, and then monitors that the channel is idle and waits for SIFS After that, start to send PPDUs of STA2; when STA2 sends PPDUs to AP through the channel, AP replies ACK information for the PPDU sent by STA2, and STA3 listens to the ACK information sent by AP for the PPDU sent by STA2 on this channel, and then monitors the channel After being idle and waiting for SIFS, it starts to send PPDUs of STA3; after receiving the PPDUs sent by STA3, the AP can reply ACK information, and then can send a frame after waiting for SIFS to close the process.
  • the wireless communication message frame may also contain indication information for indicating an ACK reply strategy, which is used to indicate that the AP will reply ACK information for the data frame sent by each STA, and each STA needs to monitor After the ACK information for the data frame sent by the previous STA, it is determined whether the data frame can be sent.
  • indication information for indicating an ACK reply strategy which is used to indicate that the AP will reply ACK information for the data frame sent by each STA, and each STA needs to monitor After the ACK information for the data frame sent by the previous STA, it is determined whether the data frame can be sent.
  • the STA group defined in the trigger frame may correspond to the service priority.
  • the priority corresponding to the PPDU sent by each STA may be equal to or greater than the priority corresponding to the packet.
  • the priority of the PPDU sent by each STA in the STA group can only be equal to the priority corresponding to the group.
  • SIFS a period of time
  • the AP can wait for a longer time (such as DIFS), if there is no other STA unauthorized access to send a higher priority PPDU, then the AP can send a frame to close the access process. If the AP receives the unauthorized access of other STAs to send higher priority PPDUs, it can start receiving, and after receiving it, send a frame close procedure. By receiving this high-priority PPDU, the AP can learn that there are higher-priority services that need to be accessed in the current network, so it can select higher-priority STA packets for priority access in the next process.
  • DIFS a longer time
  • STA3 and STA4 both send higher priority services to the AP after the STA2 has completed the transmission.
  • the AP can send a frame to close the current access process after waiting for the collision to complete. Through the collision, the AP can learn that the higher priority services in the current network need to be accessed and the demand is urgent, so it can select higher priority packets for priority access in the next process.
  • the technical solution of the foregoing embodiment of the present application determines the access sequence of each STA in the grouped STA, so that each STA can access the channel in turn and send PPDUs according to regulations, thereby reducing the overhead of air interface contention and signaling interaction.
  • the technical solutions of the embodiments of the present application can allow higher priority services to access unauthorized access, to a certain extent, the transmission of higher priority services can be guaranteed, and the AP can also learn about the high priority services in the network in time. Therefore, it can adapt to network changes more quickly and perform access scheduling more efficiently.
  • the 6GHz frequency band is taken as an example to illustrate the technical solutions of the embodiments of the present application.
  • the technical solutions of the embodiments of the present application may also be applied to other frequency bands. , Such as 5GHz frequency band, etc., to achieve more efficient access control.
  • Fig. 18 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 1800 includes: a generating unit 1802 and a sending unit 1804.
  • the generating unit 1802 is used to generate a wireless communication message frame, the wireless communication message frame contains the information of each device that needs to access the channel, and the access sequence of each device; the sending unit 1804 is used to obtain When the information of the available transmission channel is available, the wireless communication message frame is sent to start the data transmission process, and instruct the respective devices to sequentially send communication data through the transmission channel in the data transmission process according to the access sequence.
  • the frame body part of the wireless communication message frame contains the information of the respective devices, and the arrangement order of the information of the respective devices in the frame body part is used to indicate The access sequence of each device;
  • the frame header part of the wireless communication message frame contains the information of each device and the information of the access sequence of each device.
  • the communication device 1800 further includes: an acquiring unit configured to acquire the information of the available transmission channel through channel competition; The point device performs communication negotiation to obtain the information of the available transmission channel.
  • the sending unit 1804 is further configured to send a message frame for closing the data transmission process when it is detected that the data transmission of the last device in the access sequence is completed.
  • the sending unit 1804 is further configured to: within the transmission time of the target device included in the wireless communication message frame, if the target is not detected within the first predetermined time period For the communication data sent by the device, a message frame for closing the data transmission process is sent, wherein the first predetermined duration starts from the completion of the communication data transmission of the previous device of the target device in the access sequence.
  • the generating unit 1802 is further configured to: after the sending unit 1804 sends a message frame that closes the data transmission process, generate a new wireless communication message frame, and the new wireless communication
  • the data transmission duration indicated by the message frame is less than or equal to the remaining transmission duration of the data transmission procedure.
  • the communication device 1800 further includes: a determining unit, configured to determine whether there is a hidden node of the target device in each device according to the data transmission situation of each device
  • the generating unit 1802 is further configured to: if there is a hidden node of the target device, when generating the wireless communication message frame again, include the target device and the hidden node in different wireless communication message frames.
  • the communication device 1800 further includes a processing unit, configured to: when it is detected that the communication data sent by the first device and the second device interfere
  • the data transmission process that includes the second device or the first device is not started within, wherein the second predetermined time period can be based on the data transmission of the first device or the data transmission of the second device.
  • the timing of the completion of the next data transmission is started; or when it is detected that the communication data sent by the first device and the second device interfere with each other, it is used to turn on the target on the transmission channel other than the transmission channel of the first device.
  • the data transmission process of the second device is described.
  • the wireless communication message frame further includes first indication information, and the first indication information is used to indicate the information sent by each device in the data transmission process.
  • the priority of the data frame is greater than or equal to the specified priority.
  • the wireless communication message frame further includes second indication information and third indication information, and the second indication information is used to indicate that each device is in the data
  • the priority of the data frame sent in the transmission process is equal to the designated priority
  • the third indication information is used to indicate whether the transmission of service data higher than the designated priority is allowed in the data transmission process
  • the third indication information indicates that the target service data higher than the specified priority is allowed to be transmitted in the data transmission process, after the data transmission of the last device in the access sequence is completed, the data transmission is allowed Transmitting the target service data in the transmission channel.
  • the sending unit 1804 is further configured to: if it is detected that the target service data is transmitted in the transmission channel, send a message frame to close the data transmission process; or When the third indication information indicates that the target service data higher than the specified priority is allowed to be transmitted in the data transmission process, if the third predetermined device after the data transmission of the last device is completed If the target service data is not received within the time period, a message frame for closing the data transmission process is sent.
  • the sending unit 1804 is further configured to: in the third indication information, indicate that the transmission of target service data higher than the specified priority is allowed in the data transmission process Next, if the target service data transmitted by multiple other devices in the transmission channel is detected after the data transmission of the last device is completed, a message frame for closing the data transmission process is sent.
  • the wireless communication message frame further includes any one of the following information or a combination of multiple information: the maximum duration of the data transmission process, which is used to indicate the data transmission.
  • the fourth indication information of the modulation and coding strategy is not limited to the wireless communication message frame.
  • Fig. 19 shows a block diagram of a communication device according to an embodiment of the present application.
  • the communication device may be set in a site device.
  • a communication device 1900 includes: a receiving unit 1902, a monitoring unit 1904, and a transmission unit 1906.
  • the receiving unit 1902 is used to receive a wireless communication message frame, and the wireless communication message frame contains the information of each device that needs to access the designated transmission channel, and the access sequence of each device;
  • the monitoring unit 1904 is used to When the wireless communication message frame contains the information of the designated device, monitor the designated transmission channel;
  • the transmission unit 1906 is configured to monitor the previous device of the designated device based on the access sequence on the designated transmission channel When the data transmission is completed and the designated transmission channel is monitored to be idle, the designated device sends communication data through the designated transmission channel.
  • the transmission unit 1906 is further configured to: if the data frame sent by the previous device is monitored on the designated transmission channel, determine the data transmission of the previous device Complete; or used to determine that the data transmission of the previous device is completed when the reception confirmation information for the data frame sent by the previous device is monitored on the designated transmission channel.
  • FIG. 20 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 2000 includes a central processing unit (Central Processing Unit, CPU) 2001, which can be loaded into a random system according to a program stored in a read-only memory (Read-Only Memory, ROM) 2002 or from a storage part 2008 Access to the program in the memory (Random Access Memory, RAM) 2003 to execute various appropriate actions and processing, for example, execute the method described in the foregoing embodiment.
  • CPU Central Processing Unit
  • RAM Random Access Memory
  • various programs and data required for system operation are also stored.
  • the CPU 2001, ROM 2002, and RAM 2003 are connected to each other through a bus 2004.
  • the Input/Output (I/O) interface 2005 is also connected to the bus 2004.
  • the following components are connected to the I/O interface 2005: the input part 2006 including the keyboard, mouse, etc.; including the output part such as cathode ray tube (Cathode Ray Tube, CRT), liquid crystal display (LCD), and speakers 2007 ; A storage part 2008 including a hard disk, etc.; and a communication part 2009 including a network interface card such as a LAN (Local Area Network) card and a modem.
  • the communication section 2009 performs communication processing via a network such as the Internet.
  • the driver 2010 is also connected to the I/O interface 2005 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 2009, and/or installed from the removable medium 2011.
  • the computer program is executed by the central processing unit (CPU) 2001, it executes various functions defined in the system of the present application.
  • the computer-readable medium shown in the embodiments 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 electric, magnetic, optical, electromagnetic, infrared, or semiconductor system, device, or device, or any combination 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 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.
  • the 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, or 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 functions or operations, or can be It is realized by a combination of dedicated hardware and computer instructions.
  • the units involved in the embodiments described in the present application can be implemented in software or hardware, and the described units can 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 exemplary embodiments described herein 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 (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 embodiment of the present application.
  • a computing device which can be a personal computer, a server, a touch terminal, or a network device, etc.

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

本申请的实施例提供了一种通信方法、装置、计算机可读介质及电子设备。该通信方法包括：生成无线通信消息帧，所述无线通信消息帧中包含有需要接入信道的各个设备的信息，以及所述各个设备的接入顺序；若获取到可用的传输信道的信息，则发送所述无线通信消息帧以开启数据传输流程，并指示所述各个设备按照所述接入顺序在所述数据传输流程中依次通过所述传输信道发送通信数据。本申请实施例的技术方案可以提高信道的利用率及设备之间的通信效率。

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07月12日提交的申请号为201910628398.6、发明名称为“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，涉及一种通信方法、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。另一方面，由于无线局域网的标准IEEE802.11保持后向兼容，因此随着标准的迭代更新，IEEE802.11a/b/g/n/ac/ax和下一代的be都会共同使用相同的频段(比如2.4GHz和5GHz频段)，导致频谱拥挤情况越来越严重。针对这种情况，如何能够保证信道的利用效率，以提高系统的通信效率成为亟待解决的技术问题。
发明内容
本申请的实施例提供了一种通信方法、装置、计算机可读介质及电子设备，进而至少在一定程度上可以提高信道的利用率及设备之间的通信效率。
本申请的其他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，所述方法包括：生成无线通信消息帧，所述无线通信消息帧中包含有需要接入信道的各个设备的信息，以及所述各个设备的接入顺序；若获取到可用的传输信道的信息，则发送所述无线通信消息帧以开启数据传输流程，并指示所述各个设备按照所述接入顺序在所述数据传输流程中依次通过所述传输信道发送通信数据。
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，所述方法包括：接收无线通信消息帧，所述无线通信消息帧中包含有需要接入指定传输信道的各个设备的信息，以及所述各个设备的接入顺序；若所述无线通信消息帧中包含有指定设备的信息，则监听所述指定传输信道；若在所述指定传输信道上监听到所述指定设备基于所述接入顺序的前一个设备的数据发送完成，且监听到所述指定传输信道空闲，则由所述指定设备通过所述指定传输信道发送通信数据。
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，用于生成无线通信消息帧，所述无线通信消息帧中包含有需要接入信道的各个设备的信息，以及所述各个设备的接入顺序；发送单元，用于在获取到可用的传输信道的信息时，发送所述无线通信消息帧以开启数据传输流程，并指示所述各个设备按照所述接入顺序在所述数据传输流程中依次通过所述传输信道发送通信数据。
根据本申请实施例的一个方面，提供了一种通信装置，包括：接收单元，用于接收无线通信消息帧，所述无线通信消息帧中包含有需要接入指定传输信道的各个设备的信息，以及所述各个设备的接入顺序；监听单元，用于在所述无线通信消息帧中包含有指定设备的信息时，监听所述指定传输信道；传输单元，用于在所述指定传输信道上监听到所述指定设备基于所述接入顺序的前一个设备的数据发送完成，且监听到所述指定传输信道空闲时，由所述指定设备通过所述指定传输信道发送通信数据。
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。
在本申请的一些实施例所提供的技术方案中，通过生成包含有需要接入信道的各个设备的信息及该各个设备的接入顺序的无线通信消息帧，并在获取到可用的传输信道的信息时，发送该无线通信消息帧以开启数据传输流程，以指示该各个设备按照该接入顺序在数据传输流程中依次通过该传输信道发送通信数据，使得在获取到可用的传输信道之后，能够使多个设备依次基于该传输信道发送数据，避免了各个设备在发送数据时都需要进行信道竞争而增加信令的开销，实现了更合理的多设备信道接入控制策略，进而可以提高信道的利用率及设备之间的通信效率。
在本申请的一些实施例所提供的技术方案中，通过接收包含有需要接入指定传输信道的各个设备的信息及该各个设备的接入顺序的无线通信消息帧，当该无线通信消息帧中包含有指定设备的信息时，监听该指定传输信道，并在该指定传输信道上监听到指定设备基于该接入顺序的前一个设备的数据发送完成，且监听到该指定传输信道空闲时，由该指定设备通过该指定传输信道发送通信数据，一方面使得能够避免各个设备在发送数据时都需要进行信道竞争而增加信令的开销，另一方面也使得各个设备能够 合理有序地通过该指定传输信道发送数据，进而有利于提高信道的利用率及设备之间的通信效率。
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他的附图。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无线通信消息帧的结构图；
图4示出了根据本申请的一个实施例的无线通信消息帧的结构图；
图5示出了根据本申请的一个实施例的通信方法的流程图；
图6示出了根据本申请的一个实施例的通信方法的流程图；
图7示出了根据本申请的一个实施例的STA的处理流程示意图；
图8示出了根据本申请的一个实施例的AP的处理流程示意图；
图9示出了根据本申请的一个实施例的分组接入过程的流程图；
图10示出了根据本申请的一个实施例的分组接入过程的流程图；
图11示出了根据本申请的一个实施例的互为隐藏节点的场景图；
图12示出了根据本申请的一个实施例的分组接入过程的流程图；
图13示出了根据本申请的一个实施例的产生干扰情况的场景图；
图14示出了根据本申请的一个实施例的分组接入过程的流程图；
图15示出了根据本申请的一个实施例的分组接入过程的流程图；
图16示出了根据本申请的一个实施例的分组接入过程的流程图；
图17示出了根据本申请的一个实施例的分组接入过程的流程图；
图18示出了根据本申请的一个实施例的通信装置的框图；
图19示出了根据本申请的一个实施例的通信装置的框图；
图20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。
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和站点103。其中，接入点101、站点102和站点103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可以生成无线通信消息帧，该无线通信消息帧可以是触发帧，该无线通信消息帧中包含有需要接入信道的各个设备的信息，以及该各个设备的接入顺序。当接入点101获取到可用的传输信道的信息之后，可以发送该无线通信消息帧以开启数据传输流程，并指示无线通信消息帧中包含的各个设备，按照该接入顺序在该数据传输流程中依次通过传输信道发送通信数据。
比如，若该无线通信消息帧中包含有站点102和站点103的信息，并且站点102的接入顺序处于站点103之前，那么接入点101在获取到可用的传输信道之后，可以发送该无线通信消息帧。当站点102接收到该无线通信消息帧之后，可以根据该无线通信消息帧获知该传输信道的信息，然 后在监听到信道空闲之后，可以通过该传输信道发送通信数据；当站点103接收到该无线通信消息帧之后，可以根据该无线通信消息帧获知其需要在站点102传输数据之后才能通过该传输信道传输数据，因此站点103可以监听该传输信道，当监听到站点102的数据传输完成且监听到该传输信道空闲时，站点103可以通过该传输信道发送数据。可见，本申请实施例的技术方案一方面使得能够避免各个设备在发送数据时都需要进行信道竞争而增加信令的开销，另一方面也使得各个设备能够合理有序地通过该指定传输信道发送数据，进而有利于提高信道的利用率及设备之间的通信效率。
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设备来执行，比如可以由图1中所示的接入点101来执行。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，生成无线通信消息帧，所述无线通信消息帧中包含有需要接入信道的各个设备的信息，以及所述各个设备的接入顺序。
在本申请的一个实施例中，无线通信消息帧可以是触发帧。需要接入信道的各个设备可以包括需要接入信道发送数据的站点设备，也可以包括需要接入信道发送数据的接入点设备。
在本申请的一个实施例中，如图3所示，无线通信消息帧可以是PPDU(Presentation Protocol Data Unit，表示层协议数据单元)；PPDU是在MPDU(MAC Protocol Data Unit，MAC协议数据单元)的基础上添加了物理层帧头部(PHY Header)和PAD(填充)比特位形成的数据帧；而MPDU是在MSDU(MAC Service Data Unit，MAC服务数据单元)的基础上添加了MAC(Media Access Control，媒体访问控制)层帧头部(MAC Header)形成的数据帧；MSDU包含了接入参数信息、FCS(Frame Check Sequence，帧校验序列)及需要接入信道的各个设备的信息(如图3中所示的STA1、STA2和STA3)，其中这些设备的信息的排列顺序表示了各个设备的接入顺序。如图3所示，STA1的接入顺序位于STA2之前，STA2的接入顺序位于STA3之前。
在本申请的一个实施例中，如图4所示，无线通信消息帧可以是PPDU。其中，可以在无线通信消息帧的MAC层帧头部分添加需要接入信道的各个设备的信息以及该各个设备的接入顺序的信息。其中，各个设备的接入顺序的信息也可以通过各个设备的信息的排列顺序来表示。在本申请的其它实施例中，也可以在无线通信消息帧的物理层帧头部分添加需要接入信道的各个设备的信息以及该各个设备的接入顺序的信息。
在本申请的一个实施例中，无线通信消息帧中还可以包含有第一指示 信息，该第一指示信息用于指示各个设备在数据传输流程中发送的数据帧的优先级大于或等于的指定优先级。即无线通信消息帧中包含的第一指示信息用于指示服务优先级的信息，进而各个设备在数据传输流程中发送的数据帧的优先级可以大于或等于第一指示信息指示的服务优先级。
在本申请的一个实施例中，无线通信消息帧中还可以包括数据传输流程的最大时长，或者还可以包括用于指示数据传输所采用的调制与编码策略(Modulation and Coding Scheme，简称MCS)的第四指示信息。
继续参照图2所示，在步骤S220中，若获取到可用的传输信道的信息，则发送所述无线通信消息帧以开启数据传输流程，并指示所述各个设备按照所述接入顺序在所述数据传输流程中依次通过所述传输信道发送通信数据。
在本申请的一个实施例中，接入点设备可以通过信道竞争的方式获取到可用的传输信道的信息。或者接入点设备也可以通过与其它接入点设备进行通信协商，以获取到可用的传输信道的信息。
在本申请的一个实施例中，无线通信消息帧中包含的各个设备可以在监测到前一个设备的数据传输完成之后，并监测到传输信道空闲时，就可以通过该传输信道发送通信数据。
在本申请的一个实施例中，接入点设备在发送无线通信消息帧之后，可以在检测到按照接入顺序的最后一个设备的数据传输完成后，发送关闭数据传输流程的消息帧。其中，该消息帧可以至少包含一个字段，用于表示关闭当前的数据传输流程。
在本申请的一个实施例中，各个设备在依次传输通信数据的过程中，可能会由于通信问题导致某个设备没有发送通信数据，在这种情况下也可以及时发送关闭数据传输流程的消息帧。具体而言，可以在无线通信消息帧中包含的目标设备的传输时间内，若在第一预定时长内未检测到该目标设备发送的通信数据，则发送关闭该数据传输流程的消息帧。其中，接入点设备在发送无线通信消息帧时，可以确定该无线通信消息帧所对应分组中的各设备的接入顺序以及允许的传输时长。所述第一预定时长例如从接入点设备检测到目标设备的前一个设备的通信数据(数据帧)传输完成时刻开始计时。当目标设备为分组中的第一个设备时，所述第一预定时间例如从接入点设备发送所述无线通信消息帧之后起计时。
在本申请的一个实施例中，在发送关闭数据传输流程的消息帧之后，可以生成新的无线通信消息帧，该新的无线通信消息帧所指示的数据传输时长小于或等于关闭的数据传输流程的剩余传输时长。根据本申请实施例，通过利用剩余传输时长，可以满足不同等级的需求。例如，在分组的设备较少、所需的通信时长较短时，可以利用“剩余传输时长”来满足通信需 求，以提高空口的利用率。
在本申请的一个实施例中，若在数据传输过程中检测到第一设备与第二设备发送的通信数据产生干扰，则可以在第二预定时长内不开启包含有第二设备或第一设备的数据传输流程。该实施例的技术方案通过在第二预定时长内不开启包含有第二设备或第一设备的数据传输流程，使得能够避免第一设备与第二设备之间产生持续的干扰而影响数据传输。其中，所述第二预定时长例如从接入点设备检测到发生干扰的第一设备的数据传输和第二设备的数据传输中靠后的一个数据传输的完成时刻开始计时。
在本申请的一个实施例中，若在数据传输过程中检测到第一设备与第二设备发送的通信数据产生干扰，则可以在不同于第一设备的传输信道的其它传输信道上开启针对第二设备的数据传输流程。该实施例的技术方案通过在不同于第一设备的传输信道的其它传输信道上开启针对第二设备的数据传输流程，使得能够避免第一设备与第二设备在同一传输信道上产生干扰而影响数据传输。
在本申请的一个实施例中，无线通信消息帧中还可以包含有第二指示信息和第三指示信息，该第二指示信息用于指示该各个设备在数据传输流程中发送的数据帧的优先级等于指定优先级，该第三指示信息用于指示在数据传输流程中是否允许传输高于该指定优先级的业务数据；其中，若该第三指示信息指示在数据传输流程中允许传输高于该指定优先级的目标业务数据，则在按照接入顺序的最后一个设备的数据传输完成后，允许在所述传输信道中传输目标业务数据。该实施例的技术方案使得可以在原有数据传输业务正常进行的前提下，保证高优先级的业务数据得到及时传输。
在本申请的一个实施例中，若检测到前述的目标业务数据在所述传输信道中传输完成，则发送关闭所述数据传输流程的消息帧。
在本申请的另一个实施例中，在前述第三指示信息指示在数据传输流程中允许传输高于所述指定优先级的目标业务数据的情况下，若在所述最后一个设备的数据传输完成后的第三预定时长内未接收到该目标业务数据，则发送关闭所述数据传输流程的消息帧。
在本申请的一个实施例中，在前述第三指示信息指示在数据传输流程中允许传输高于所述指定优先级的目标业务数据的情况下，若在所述最后一个设备的数据传输完成后检测到多个其它设备在所述传输信道中传输的目标业务数据，则发送关闭所述数据传输流程的消息帧。该实施例的技术方案使得有多个其它设备发送的目标业务数据产生干扰时，能够及时关闭数据传输流程。
在本申请的一个实施例中，由于无线通信消息帧中包含的各个设备是在监测到前一个设备的数据传输完成之后才开始传输数据，如果设备之间 存在隐藏节点，那么可能会导致数据传输流程中断，因此本申请的实施例提供了如图5所示的处理流程，具体包括如下步骤：
步骤S510，根据各个设备的数据传输情况，确定所述各个设备中是否存在目标设备的隐藏节点。
在本申请的一个实施例中，目标设备可以是无线通信消息帧中所包含的任一个设备，如果某个设备距离目标设备太远导致不能接收到目标设备发送的数据，则可以将该设备作为目标设备的隐藏节点。
步骤S520，若存在所述目标设备的隐藏节点，则在再次生成无线通信消息帧时，将所述目标设备与所述隐藏节点包含在不同的无线通信消息帧中。
图5所示实施例的技术方案通过将目标设备与隐藏节点包含在不同的无线通信消息帧中，使得能够避免将互为隐藏节点的设备设置在同一个数据传输流程中而导致数据传输流程中断的问题。
前述实施例的技术方案从接入点设备的角度对本申请实施例的通信方法进行了阐述，以下结合图6，从站点设备的角度对本申请实施例的通信方法进行详细说明：
图6示出了根据本申请的一个实施例的通信方法的流程图，该通信方法可以由作为站点的设备来执行，比如可以由图1中所示的站点102或站点103来执行。参照图6所示，该通信方法至少包括步骤S610至步骤S630，详细介绍如下：
在步骤S610中，接收无线通信消息帧，所述无线通信消息帧中包含有需要接入指定传输信道的各个设备的信息，以及所述各个设备的接入顺序。
在本申请的一个实施例中，无线通信消息帧可以是触发帧。指定传输信道可以是接入点设备获取到的可用的传输信道。其中，指定传输信道可以是接入点设备通过信道竞争的方式获取到的，或者也可以是通过与其它接入点设备进行通信协商获取到的。
在步骤S620中，若所述无线通信消息帧中包含有指定设备的信息，则监听所述指定传输信道。
在本申请的一个实施例中，如果无线通信消息帧中包含有指定设备的信息，那么说明该指定设备可以通过该指定传输信道传输数据，因此，该指定设备可以对该指定传输信道进行监听。
在步骤S630中，若在所述指定传输信道上监听到所述指定设备基于所述接入顺序的前一个设备的数据发送完成，且监听到所述指定传输信道空闲，则由所述指定设备通过所述指定传输信道发送通信数据。
在本申请的一个实施例中，一个设备可以在指定传输信道上监听到前一个设备发送的数据帧时，确定前一个设备的数据发送完成。即该实施例 的技术方案不需要各个设备监听针对前一个设备发送的数据帧的接收确认信息。
在本申请的一个实施例中，可以在指定传输信道上监听到针对前一个设备发送的数据帧的接收确认信息时，确定前一个设备的数据发送完成。即该实施例的技术方案需要各个设备监听针对前一个设备发送的数据帧的接收确认信息(即ACK)。比如AP会针对各个设备发送的数据帧回复ACK信息，那么在这种情况下，当设备监听到AP针对前一个设备发送的数据帧所回复的ACK信息时，确定前一个设备的数据发送完成。基于该实施例的技术方案，无线通信消息帧中还可以包含用于指示ACK回复策略的指示信息，其用于指示AP会针对各个设备发送的数据帧回复ACK信息，并且各个设备需要在监听到针对前一个设备发送的数据帧的ACK信息之后，再确定是否开始发送数据帧。
图6所示实施例的技术方案一方面使得能够避免各个设备在发送数据时都需要进行信道竞争而增加信令的开销，另一方面也使得各个设备能够合理有序地通过该指定传输信道发送数据，进而有利于提高信道的利用率及设备之间的通信效率。
前述实施例分别从接入点设备和站点设备的角度对本申请实施例的通信方法进行了阐述，以下结合图7至图17，以在6GHz频段上由接入点调度站点进行信道接入为例，对本申请实施例中的技术方案进行详细阐述：
在本申请的一个实施例中，接入点AP可以通过调度分组STA的方式进行信道接入，在这种情况下，STA无需进行信道竞争，只需通过AP定义的接入顺序依次接入信道即可，进而可以避免各个STA进行信道竞争而增加信令的开销，有利于提高信道的利用率及设备间的通信效率。
在本申请的一个实施例中，AP与AP之间可以通过信道竞争的方式来获取到可用的信道，比如可以通过CSMA/CA(Carrier Sensing Multiple Access/Collision Avoidance，载波侦听多路访问/碰撞避免)的退避方式，如EDCA(Enhanced Distributed Channel Access，增强分布式信道接入)来竞争可用的信道，或者也可以通过AP之间的协商来确定可用的信道信息。在获得可用的信道信息之后，AP可以发送一个触发帧来定义整个接入流程的时间长度，所有收到该触发帧的STA都可以按照指示的时间长度设置NAV(Network Allocation Vector，网络分配矢量)，在NAV设置时长内不允许接入信道。其中，NAV设置的时长例如是从STA接收到触发帧的时刻开始计时。
需要说明的是，EDCA是针对无线传输的控制信道接入的协议，EDCA基于CSMA/CA允许互相兼容的PHY(Physical，物理层)共享无线媒介。其中，在载波侦听(Carrier Sensing)的过程中，PHY通过在每一个时隙执 行物理的侦听，可以得知无线媒介是否为空闲状态。在随机退避(Random Backoff)过程中，EDCA会从一定范围内选择一个随机整数值作为初始的退避时间，当PHY在一个时隙内侦听到共享媒介为空闲时，EDCA会开始进行退避，即退避计时减去1。当退避计时为0时，EDCA就判断为竞争信道接入成功，即获得传输机会TXOP，并开始发送数据；如果退避过程中在一个时隙内侦听到媒介为忙，则退避会暂时挂起，当再次侦听到空闲时，会继续之前的退避，当两个设备同时退避计时为0时，则发生碰撞。
此外，在EDCA协议中定义了4类接入类别AC(Access Category)，优先级从高到低依次为VO、VI、BE、BK，分别代表语音(Voice)类、视频(Video)类、尽力而为(Best Effort)类和背景(Background)类。
在本申请的一个实施例中，前述的触发帧可以是基于802.11ax的触发帧的扩展，也可以是重新定义的一种新的帧。触发帧中应当包含需要接入的各个STA的地址以及接入顺序，所有收到触发帧的且在该接入顺序中的STA，应当保持信道监听，当条件满足时立即接入信道。另外，触发帧中可以包含接入参数，以定义STA接入信道的最大长度、最低MCS等，进而STA在后续发送数据时，必须遵守触发帧中定义的接入参数。
在本申请的一个实施例中，触发帧的结构可以如图3所示，其中STA1、STA2、STA3在MSDU中出现的先后位置代表了接入顺序。触发帧也可以如图4所示，通过帧头部的信令(signal)部分指示STA分组信息。分组信息中可以包括组内STA的地址和接入顺序，以及对应的服务优先级指示。可选地，一个STA在一个触发帧中可以最多出现一次，且每个STA只能发送最多一个PPDU，分组信息中应至少包括一个STA。在本申请中，STA发送的PPDU和前文图3的触发帧的PPDU，区别在于MSDU部分(PPDU的净荷(payload))不同。STA发送的PPDU中的MSDU可以是具体的某业务的数据。
此外，在本申请的一个实施例中，触发帧中指示的分组信息可以与服务优先级相关联，在某一次的分组接入流程中，STA发送的帧数据的优先级应当大于或者等于分组对应的优先级。例如，某个分组对应一个服务优先级为VI，那么分组内的STA可以发送优先级为VI或者高于VI的PPDU，例如，优先级为VI或VO的PPDU。并且一个STA可能会出现在多个不同的接入分组中，对应于不同的服务优先级。
在本申请的一个实施例中，如图7所示，STA的处理流程主要包括如下步骤：
步骤S701，当STA接收到触发帧之后，判断自己是否在触发帧定义的分组中；若是，则执行步骤S702；否则，设置NAV。其中，STA可以通过 判断其地址是否包括在触发帧中，来判断自己是否在触发帧定义的分组中。STA的地址可以是MAC地址、AID(Association Identification，连接标识)和/或其他标识。
步骤S702，STA记录接入顺序中该STA的前一个STA的地址。
步骤S703，STA监听触发帧指示的接入信道。
步骤S704，STA判断是否通过监听的接入信道接收到数据帧，若是，则执行步骤S705；否则，返回步骤S703继续监听所述接入信道。
步骤S705，STA判断监听到的数据帧是否来自于接入顺序中的前一个STA，若是，则执行步骤S706；否则，返回步骤S703继续监听所述接入信道。
步骤S706，STA监听触发帧指示的接入信道。
步骤S707，STA判断接入信道是否空闲，若是，则通过该接入信道发送数据；否则返回步骤S706继续监听接入信道是否空闲。
在本申请的一个实施例中，STA在监听信道从繁忙变为无任何信号传输且保持一段时间后，可以判定信道空闲。其中，保持的这一段时间可以是SIFS(Short interframe space，短帧间间隔)，或者是其它时间长度。
在本申请的一个实施例中，如图8所示，AP的处理流程主要包括如下步骤：
步骤S801，AP发送触发帧，以设置对指定信道的接入时长。在发送触发帧之后，AP应当保持信道监听，以确认信道接入是否按照规划进行，即监听接入顺序中的STA是否按顺序依次发送PPDU。
步骤S802，AP判断是否通过指定信道接收到PPDU，若是，则执行步骤S803；否则等待一段时间(比如可以是SIFS)执行步骤S807。
步骤S803，判断接收到的PPDU解码是否正确，若是，则执行步骤S804；否则等待一段时间(比如可以是SIFS)执行步骤S807。其中，如果STA在数据发送过程中出现了碰撞，则AP收到了该STA的PPDU后可能会无法解码成功。
步骤S804，判断接收到的PPDU是否来自于接入顺序的下一个STA，若是，则执行步骤S805；否则执行步骤S810。其中，触发帧中第一个站点的前一个站点可以是发送触发帧的AP。在这种情况下，当AP第一次接收到PPDU时，判断接收到的该PPDU是否是AP之后的第一个STA发送的。对于其他PPDU，AP可以判断接收到的PPDU是否是来自已收到的PPDU的STA的在接入顺序中的下一个STA。步骤S805，判断接收到的PPDU是否来自于接入顺序的最后STA，若是，则执行步骤S806；否则执行步骤S809。
步骤S806，等待该PPDU接收完成，然后等待一段时间(比如可以是SIFS)之后返回步骤S802。
步骤S807，判断触发帧定义的接入时长中是否剩余足够的接入时长，若是，则执行步骤S808；否则执行步骤S810。其中，AP在步骤S801发送触发帧之前，已经计算出了此次数据传输流程的总时长，即，接入时长，并且可以将该接入时长包括在触发帧中。在步骤S807中，AP可以根据接入时长和本次数据传输已进行时长，便可以得知剩余的接入时长。之后，AP再将剩余的接入时长与步骤S809发送消息帧所需要的时长加上必要的帧之间间隔的时长之和进行比较，来判断是否剩余足够的接入时长。
步骤S808，判断信道是否空闲，若是，则执行步骤S809；否则返回步骤S807。
步骤S809，发送消息帧，以关闭当前的接入流程。
步骤S810，确定发送失败，停止接入流程。
在本申请的一个实施例中，AP可以将没有成功发送PPDU的STA从当前的分组中删除，以保证分组的接入效率。
以下通过AP与STA之间的交互流程来详细阐述本申请实施例的技术方案：
在本申请的一个实施例中，如图9所示，AP通过发送触发帧来发起一个分组接入流程，触发帧中所包含的STA依照接入顺序依次接入信道。比如，STA接入顺序可以为STA1—STA2—STA3，那么当STA1通过信道发送PPDU给AP之后，STA2在该信道上监听到STA1的该PPDU的发送和结束，然后监听信道为空闲且等待SIFS之后，开始发送；类似地，当STA2通过信道发送PPDU给AP之后，STA3在该信道上监听到STA2的该PPDU的发送和结束，然后监听信道为空闲且等待SIFS之后，开始发送STA3的PPDU。AP在收到接入顺序中最后一个STA3的PPDU之后，可以发送一个帧以关闭流程。
在本申请的一个实施例中，AP还可以在触发帧中将AP作为一个接入STA包括在分组中。如图10所示，AP通过发送触发帧来发起一个分组接入流程，触发帧中定义的接入顺序为STA1—STA2—AP—STA3。当STA1通过信道发送PPDU给AP之后，STA2在该信道上监听到STA1的该PPDU的发送和结束，然后监听信道为空闲且等待SIFS之后，开始发送STA2的PPDU；当AP收到STA2发出的PPDU之后，监听信道为空闲，经过SIFS之后，AP发送PPDU给STA1；STA3在收到AP发送的PPDU之后，监听信道为空闲，并经过SIFS之后，开始发送STA3的PPDU。AP在收到接入顺序中最后一个STA3的PPDU之后，可以发送一个帧以关闭 流程。可选地，AP在接入顺序中可以只出现最多一次。根据本申请实施例，某些业务可能具有双向传输的要求，例如，STA1发送PPDU给AP之后，可能需要尽快得到AP发送的下行确认或者下行数据。通过将AP作为一个接入STA包括在分组中，可以提高分组接入流程的灵活性和不同场景的适应性。在本申请的一个实施例中，由于6GHz的覆盖范围小于传统Wi-Fi的2.4GHz频段，因此隐藏节点(Hidden Node)的问题会更严重。如图11所示，STA2和STA3互为6GHz上的隐藏节点，即无法收到对方发出的PPDU。当AP发起一个如图12所示的分组接入流程时，即接入顺序为STA1—STA2—STA3，那么当STA2发出PPDU之后，STA3无法接收到PPDU，在这种情况下，由于不满足STA3的接入条件，STA3会一直保持监听，不会发送任何PPDU。同时，AP在收到STA2发出的PPDU且经过一段时间(SIFS)之后没有收到STA3的PPDU，那么AP可以在继续等待一段时间(等待的总时间可以是DIFS(Distributed Inter-frame Spacing，分布式帧间间隙))之后，选择发送一个帧关闭当前的接入流程，或者也可以如图12所示，AP发送一个新的触发帧来定义一个新的接入分组，开始新的接入流程。其中，新发起的接入流程所定义的接入时长可以小于或等于上一个接入流程的剩余接入时长。通过这样，可以提高空口的利用率。
另外，AP可以通过这个接入流程侦测到网络情况，例如这里的STA2与STA3之间互为隐藏节点，因此在下一次接入分组中，AP可以重新规划分组STA，避免STA2与STA3同组。比如图12所示的接入流程2中，AP所发起的第二次接入流程仅包含了STA3—STA1的接入顺序，没有将STA2包含在分组中。
在本申请的一个实施例中，接入流程中的某次STA的PPDU发送可能会被干扰，干扰可能来自邻近BSS(Basic Service Set，基本服务集)中的STA，也可能是其它未知干扰。比如图13所示的干扰情况中，STA4没有收到AP发出的触发帧，因此在STA3发送PPDU的过程中也发送了PPDU，导致两个PPDU同时到达AP，发送碰撞。AP在监听到该碰撞之后，应等待信道空闲，并经过一段时间(例如EIFS(Extending Inter-frame Spacing，扩展帧间间隔))之后，再发起退避接入机制。具体如图14所示，STA3与STA4发送的PPDU在AP处发生碰撞，那么在经过一段时间(EIFS)之后，AP可以重新发起新的接入流程。
在图13所示的场景中，AP通过这次的接入流程可以了解到STA3当前可能处于易受干扰的情况，因此在一段时间内可以避免再次发起包括STA4的分组接入。并且在一段时间之后，如图14所示，当AP通过退避机制重新拿到信道接入之后，AP可以再次对STA3发起分组接入。其中， 所述一段时间可以包括从STA3或STA4的PPDU传输(二者中靠后的一个)完成开始的一段EIFS时长。当然，由于AP通过这次的接入流程可以了解到STA3当前可能处于易受干扰的情况，因此AP也可以在其它信道上再次发起包括STA4的分组接入，以避免在当前信道上对STA3产生干扰。
在本申请的一个实施例中，如果是针对需要立即回复ACK(Acknowledgement，确认字符)的业务所发起的分组接入流程，那么分组中的STA需要在监听到针对前一个STA发送的PPDU的ACK信息之后，且监听到信道空闲时再进行发送。如图15所示，在AP发送的触发帧所指示的接入流程中，STA发送的PPDU必须是需要立即回复ACK的PPDU。这时，所触发的接入顺序(STA1—STA2—STA3)中的STA应当将发送条件设置为AP发出ACK之后信道空闲，且ACK所指示的地址应为前一个STA的地址(即AP发送的ACK是针对前一个STA发送的PPDU的确认信息)。具体地，当STA1通过信道发送PPDU给AP之后，AP针对STA1发送的PPDU回复ACK信息，STA2在该信道上监听到AP发送的针对STA1发送的PPDU的ACK信息，然后监听信道为空闲且等待SIFS之后，开始发送STA2的PPDU；当STA2通过信道发送PPDU给AP之后，AP针对STA2发送的PPDU回复ACK信息，STA3在该信道上监听到AP发送的针对STA2发送的PPDU的ACK信息，然后监听信道为空闲且等待SIFS之后，开始发送STA3的PPDU；AP在接收到STA3发送的PPDU之后，可以回复ACK信息，然后可以等待SIFS之后发送一个帧以关闭流程。基于该实施例的技术方案，无线通信消息帧中还可以包含用于指示ACK回复策略的指示信息，其用于指示AP会针对各个STA发送的数据帧回复ACK信息，并且各个STA需要在监听到针对前一个STA发送的数据帧的ACK信息之后，再确定是否可以开始发送数据帧。
在本申请的一个实施例中，触发帧中定义的STA分组可以与服务优先级对应。在这种情况下，各个STA所发送的PPDU对应的优先级可以等于也可以大于分组对应的优先级。
在本申请的另一个实施例中，STA分组中的各个STA所发送的PPDU的优先级只能等于分组对应的优先级。同时，在触发帧中可以指定当前发起的接入流程是否允许更高优先级业务的越权接入，如果设置为允许更高优先级业务的越权接入，则在接入顺序中的最后一个STA发送PPDU完毕后，其它分组中的STA可以在等待一段时间(例如SIFS)之后，立刻发送一个更高优先级的PPDU。具体如图16所示，当包含STA1和STA2的分组中最后一个STA(即STA2)发送PPDU完毕后，STA3可以等待SIFS之后，立刻发送一个更高优先级的PPDU。
在本申请的一个实施例中，如果AP在触发帧中设置了允许更高优先级业务的越权接入，那么在接入顺序的最后一个STA发送完毕后，可以等待一个更长的时间(如DIFS)，如果没有其它STA越权接入发送更高优先级的PPDU，那么AP可以发送一个帧关闭接入流程。如果AP收到了其它STA越权接入发送更高优先级的PPDU，则可以开始接收，并在接收完毕后，发送一个帧关闭流程。通过接收到这个高优先级PPDU，AP可以了解到当前网络中有更高优先级业务需要接入，因此可以在下一次流程选择更高优先级的STA分组优先接入。
在本申请的一个实施例中，如果分组的多个STA都在最后一个分组STA发送完成后发送更高优先级业务，则会出现碰撞。具体如图17所示，STA3和STA4在STA2发送完成后都向AP发送更高优先级的业务，那么AP在检测到碰撞之后，可以在等待碰撞完成后发送一个帧关闭当前接入流程。通过碰撞，AP可以了解到当前网络中更高优先级业务需要接入且需求急切，因此可以在下一次流程中选择更高优先级的分组优先接入。
本申请上述实施例的技术方案通过确定分组STA内的各个STA的接入顺序，使得各个STA可以按照规定依次接入信道发送PPDU，减少了空口竞争以及信令交互的开销。同时，由于本申请实施例的技术方案可以允许更高优先级的业务越权接入，因此在一定程度上可以保障更高优先级业务的传输，并且也能够使AP及时了解到网络中高优先级业务的传输需求，进而可以更快速地适应网络变化，更高效地进行接入调度。
需要说明的是，上述实施例中以6GHz频段为例对本申请实施例的技术方案进行了阐述，在本申请的其它实施例中，也可以将本申请实施例的技术方案应用到其它的频段内，比如5GHz频段等，以实现更高效的接入控制。
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18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18所示，根据本申请的一个实施例的通信装置1800，包括：生成单元1802和发送单元1804。
其中，生成单元1802用于生成无线通信消息帧，所述无线通信消息帧中包含有需要接入信道的各个设备的信息，以及所述各个设备的接入顺序；发送单元1804用于在获取到可用的传输信道的信息时，发送所述无线通信消息帧以开启数据传输流程，并指示所述各个设备按照所述接入顺序在所述数据传输流程中依次通过所述传输信道发送通信数据。
在本申请的一些实施例中，基于前述方案，所述无线通信消息帧的帧体部分包含有所述各个设备的信息，所述各个设备的信息在所述帧体部分的排列顺序用于表示所述各个设备的接入顺序；或
所述无线通信消息帧的帧头部分包含有所述各个设备的信息以及所述各个设备的接入顺序的信息。
在本申请的一些实施例中，基于前述方案，所述的通信装置1800还包括：获取单元，配置为通过信道竞争的方式获取所述可用的传输信道的信息；或配置为通过与其它接入点设备进行通信协商，以获取所述可用的传输信道的信息。
在本申请的一些实施例中，基于前述方案，发送单元1804还用于：在检测到按照所述接入顺序的最后一个设备的数据传输完成时，发送关闭所述数据传输流程的消息帧。
在本申请的一些实施例中，基于前述方案，发送单元1804还用于：在所述无线通信消息帧中包含的目标设备的传输时间内，若在第一预定时长内未检测到所述目标设备发送的通信数据，则发送关闭所述数据传输流程的消息帧，其中，所述第一预定时长从所述接入顺序中所述目标设备的前一个设备的通信数据传输完成开始计时。
在本申请的一些实施例中，基于前述方案，生成单元1802还用于：在发送单元1804发送关闭所述数据传输流程的消息帧之后，生成新的无线通信消息帧，所述新的无线通信消息帧所指示的数据传输时长小于或等于所述数据传输流程的剩余传输时长。
在本申请的一些实施例中，基于前述方案，所述的通信装置1800还包括：确定单元，用于根据所述各个设备的数据传输情况，确定所述各个设备中是否存在目标设备的隐藏节点；生成单元1802还用于：若存在所述目标设备的隐藏节点，则在再次生成所述无线通信消息帧时，将所述目标设备与所述隐藏节点包含在不同的无线通信消息帧中。
在本申请的一些实施例中，基于前述方案，所述的通信装置1800还包括：处理单元，用于在检测到第一设备与第二设备发送的通信数据产生干扰时，在第二预定时长内不开启包含有所述第二设备或所述第一设备的数据传输流程，其中，所述第二预定时长可以从所述第一设备的数据传输或所述第二设备的数据传输中靠后的一个数据传输的完成开始计时；或者用于在检测到第一设备与第二设备发送的通信数据产生干扰时，在不同于所述第一设备的传输信道的其它传输信道上开启针对所述第二设备的数据传输流程。
在本申请的一些实施例中，基于前述方案，所述无线通信消息帧中还 包含有第一指示信息，所述第一指示信息用于指示所述各个设备在所述数据传输流程中发送的数据帧的优先级大于或等于指定优先级。
在本申请的一些实施例中，基于前述方案，所述无线通信消息帧中还包含有第二指示信息和第三指示信息，所述第二指示信息用于指示所述各个设备在所述数据传输流程中发送的数据帧的优先级等于指定优先级，所述第三指示信息用于指示在所述数据传输流程中是否允许传输高于所述指定优先级的业务数据；
其中，若所述第三指示信息指示在所述数据传输流程中允许传输高于所述指定优先级的目标业务数据，则在按照所述接入顺序的最后一个设备的数据传输完成后，允许在所述传输信道中传输所述目标业务数据。
在本申请的一些实施例中，基于前述方案，发送单元1804还用于：若检测到所述目标业务数据在所述传输信道中传输完成，则发送关闭所述数据传输流程的消息帧；或者用于在所述第三指示信息指示在所述数据传输流程中允许传输高于所述指定优先级的目标业务数据的情况下，若在所述最后一个设备的数据传输完成后的第三预定时长内未接收到所述目标业务数据，则发送关闭所述数据传输流程的消息帧。
在本申请的一些实施例中，基于前述方案，发送单元1804还用于：在所述第三指示信息指示在所述数据传输流程中允许传输高于所述指定优先级的目标业务数据的情况下，若在所述最后一个设备的数据传输完成后检测到多个其它设备在所述传输信道中传输的所述目标业务数据，则发送关闭所述数据传输流程的消息帧。
在本申请的一些实施例中，基于前述方案，所述无线通信消息帧中还包含有以下任一信息或多个信息的组合：所述数据传输流程的最大时长、用于指示数据传输所采用的调制与编码策略的第四指示信息。
图19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站点设备内。
参照图19所示，根据本申请的一个实施例的通信装置1900，包括：接收单元1902、监听单元1904和传输单元1906。
其中，接收单元1902用于接收无线通信消息帧，所述无线通信消息帧中包含有需要接入指定传输信道的各个设备的信息，以及所述各个设备的接入顺序；监听单元1904用于在所述无线通信消息帧中包含有指定设备的信息时，监听所述指定传输信道；传输单元1906用于在所述指定传输信道上监听到所述指定设备基于所述接入顺序的前一个设备的数据发送完成，且监听到所述指定传输信道空闲时，由所述指定设备通过所述指定传输信道发送通信数据。
在本申请的一些实施例中，基于前述方案，传输单元1906还用于：若在所述指定传输信道上监听到所述前一个设备发送的数据帧，则确定所述前一个设备的数据发送完成；或者用于在所述指定传输信道上监听到针对所述前一个设备发送的数据帧的接收确认信息时，确定所述前一个设备的数据发送完成。
图20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20示出的电子设备的计算机系统2000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20所示，计算机系统2000包括中央处理单元(Central Processing Unit，CPU)2001，其可以根据存储在只读存储器(Read-Only Memory，ROM)2002中的程序或者从存储部分2008加载到随机访问存储器(Random Access Memory，RAM)2003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 2003中，还存储有系统操作所需的各种程序和数据。CPU 2001、ROM 2002以及RAM 2003通过总线2004彼此相连。输入/输出(Input/Output，I/O)接口2005也连接至总线2004。
以下部件连接至I/O接口2005：包括键盘、鼠标等的输入部分2006；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2007；包括硬盘等的存储部分2008；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2009。通信部分2009经由诸如因特网的网络执行通信处理。驱动器2010也根据需要连接至I/O接口2005。可拆卸介质2011，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2010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2008。
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2009从网络上被下载和安装，和/或从可拆卸介质2011被安装。在该计算机程序被中央处理单元(CPU)2001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 (19)

  1. 一种通信方法，由电子设备执行，其特征在于，所述方法包括：
    生成无线通信消息帧，所述无线通信消息帧中包含有需要接入信道的各个设备的信息，以及所述各个设备的接入顺序；
    若获取到可用的传输信道的信息，则发送所述无线通信消息帧以开启数据传输流程，并指示所述各个设备按照所述接入顺序在所述数据传输流程中依次通过所述传输信道发送通信数据。
  2. 根据权利要求1所述的通信方法，其特征在于，所述无线通信消息帧的帧体部分包含有所述各个设备的信息，所述各个设备的信息在所述帧体部分的排列顺序用于表示所述各个设备的接入顺序；或
    所述无线通信消息帧的帧头部分包含有所述各个设备的信息以及所述各个设备的接入顺序的信息。
  3. 根据权利要求1所述的通信方法，其特征在于，还包括：
    通过信道竞争的方式获取所述可用的传输信道的信息；或
    通过与其它接入点设备进行通信协商，以获取所述可用的传输信道的信息。
  4. 根据权利要求1所述的通信方法，其特征在于，还包括：
    若检测到按照所述接入顺序的最后一个设备的数据传输完成，则发送关闭所述数据传输流程的消息帧。
  5. 根据权利要求1所述的通信方法，其特征在于，还包括：
    在所述无线通信消息帧中包含的目标设备的传输时间内，若在第一预定时长内未检测到所述目标设备发送的通信数据，则发送关闭所述数据传输流程的消息帧，其中，所述第一预定时长从所述接入顺序中所述目标设备的前一个设备的通信数据传输完成开始计时。
  6. 根据权利要求5所述的通信方法，其特征在于，在发送关闭所述数据传输流程的消息帧之后，所述通信方法还包括：
    生成新的无线通信消息帧，所述新的无线通信消息帧所指示的数据传输时长小于或等于所述数据传输流程的剩余传输时长。
  7. 根据权利要求1所述的通信方法，其特征在于，还包括：
    根据所述各个设备的数据传输情况，确定所述各个设备中是否存在目标设备的隐藏节点；
    若存在所述目标设备的隐藏节点，则在再次生成无线通信消息帧时，将所述目标设备与所述隐藏节点包含在不同的无线通信消息帧中。
  8. 根据权利要求1所述的通信方法，其特征在于，还包括：
    若检测到第一设备与第二设备发送的通信数据产生干扰，则在第二预定时长内不开启包含有所述第二设备或所述第一设备的数据传输流程，其中，所述第二预定时长可以从所述第一设备的数据传输或所述第二设备的数据传输中靠后的一个数据传输的完成开始计时；或
    若检测到第一设备与第二设备发送的通信数据产生干扰，则在不同于所述第一设备的传输信道的其它传输信道上开启针对所述第二设备的数据传输流程。
  9. 根据权利要求1所述的通信方法，其特征在于，所述无线通信消息帧中还包含有第一指示信息，所述第一指示信息用于指示所述各个设备在所述数据传输流程中发送的数据帧的优先级大于或等于的指定优先级。
  10. 根据权利要求1所述的通信方法，其特征在于，所述无线通信消息帧中还包含有第二指示信息和第三指示信息，所述第二指示信息用于指示所述各个设备在所述数据传输流程中发送的数据帧的优先级等于指定优先级，所述第三指示信息用于指示在所述数据传输流程中是否允许传输高于所述指定优先级的业务数据；
    其中，若所述第三指示信息指示在所述数据传输流程中允许传输高于所述指定优先级的目标业务数据，则在按照所述接入顺序的最后一个设备的数据传输完成后，允许在所述传输信道中传输所述目标业务数据。
  11. 根据权利要求10所述的通信方法，其特征在于，还包括：
    若检测到所述目标业务数据在所述传输信道中传输完成，则发送关闭所述数据传输流程的消息帧；或
    在所述第三指示信息指示在所述数据传输流程中允许传输高于所述指定优先级的目标业务数据的情况下，若在所述最后一个设备的数据传输完成后的第三预定时长内未接收到所述目标业务数据，则发送关闭所述数据传输流程的消息帧。
  12. 根据权利要求10所述的通信方法，其特征在于，还包括：
    在所述第三指示信息指示在所述数据传输流程中允许传输高于所述指定优先级的目标业务数据的情况下，若在所述最后一个设备的数据传输完 成后检测到多个其它设备在所述传输信道中传输的所述目标业务数据，则发送关闭所述数据传输流程的消息帧。
  13. 根据权利要求1至12中任一项所述的通信方法，其特征在于，所述无线通信消息帧中还包含有以下任一信息或多个信息的组合：
    所述数据传输流程的最大时长、用于指示数据传输所采用的调制与编码策略的第四指示信息。
  14. 一种通信方法，由电子设备执行，其特征在于，包括：
    接收无线通信消息帧，所述无线通信消息帧中包含有需要接入指定传输信道的各个设备的信息，以及所述各个设备的接入顺序；
    若所述无线通信消息帧中包含有指定设备的信息，则监听所述指定传输信道；
    若在所述指定传输信道上监听到所述指定设备基于所述接入顺序的前一个设备的数据发送完成，且监听到所述指定传输信道空闲，则由所述指定设备通过所述指定传输信道发送通信数据。
  15. 根据权利要求14所述的通信方法，其特征在于，还包括：
    若在所述指定传输信道上监听到所述前一个设备发送的数据帧，则确定所述前一个设备的数据发送完成；或
    若在所述指定传输信道上监听到针对所述前一个设备发送的数据帧的接收确认信息，则确定所述前一个设备的数据发送完成。
  16. 一种通信装置，其特征在于，包括：
    生成单元，用于生成无线通信消息帧，所述无线通信消息帧中包含有需要接入信道的各个设备的信息，以及所述各个设备的接入顺序；
    发送单元，用于在获取到可用的传输信道的信息时，发送所述无线通信消息帧以开启数据传输流程，并指示所述各个设备按照所述接入顺序在所述数据传输流程中依次通过所述传输信道发送通信数据。
  17. 一种通信装置，其特征在于，包括：
    接收单元，用于接收无线通信消息帧，所述无线通信消息帧中包含有需要接入指定传输信道的各个设备的信息，以及所述各个设备的接入顺序；
    监听单元，用于在所述无线通信消息帧中包含有指定设备的信息时，监听所述指定传输信道；
    传输单元，用于在所述指定传输信道上监听到所述指定设备基于所述 接入顺序的前一个设备的数据发送完成，且监听到所述指定传输信道空闲时，由所述指定设备通过所述指定传输信道发送通信数据。
  18. 一种计算机可读介质，其上存储有计算机程序，其特征在于，所述计算机程序被处理器执行时实现如权利要求1至13中任一项所述的通信方法，或实现如权利要求14至15中任一项所述的通信方法。
  19. 一种电子设备，其特征在于，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中任一项所述的通信方法，或实现如权利要求14至15中任一项所述的通信方法。
PCT/CN2020/100401 2019-07-12 2020-07-06 通信方法、装置、计算机可读介质及电子设备 WO2021008401A1 (zh)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP2021552181A JP7271700B2 (ja) 2019-07-12 2020-07-06 通信方法、装置、及びコンピュータプログラム
EP20839715.8A EP3998830A4 (en) 2019-07-12 2020-07-06 COMMUNICATION METHOD, APPARATUS, COMPUTER READABLE MEDIUM AND ELECTRONIC DEVICE
US17/329,851 US11937294B2 (en) 2019-07-12 2021-05-25 Communication method, apparatus, computer-readable medium and electronic device

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201910628398.6A CN110381601B (zh) 2019-07-12 2019-07-12 通信方法、装置、计算机可读介质及电子设备
CN201910628398.6 2019-07-12

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US17/329,851 Continuation US11937294B2 (en) 2019-07-12 2021-05-25 Communication method, apparatus, computer-readable medium and electronic device

Publications (1)

Publication Number Publication Date
WO2021008401A1 true WO2021008401A1 (zh) 2021-01-21

Family

ID=68252878

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2020/100401 WO2021008401A1 (zh) 2019-07-12 2020-07-06 通信方法、装置、计算机可读介质及电子设备

Country Status (5)

Country Link
US (1) US11937294B2 (zh)
EP (1) EP3998830A4 (zh)
JP (1) JP7271700B2 (zh)
CN (2) CN116074972A (zh)
WO (1) WO2021008401A1 (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11937294B2 (en) 2019-07-12 2024-03-19 Tencent Technology (Shenzhen) Company Limited Communication method, apparatus, computer-readable medium and electronic device

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111698067B (zh) * 2019-03-15 2023-03-10 华为技术有限公司 数据传输方法及装置
CN110661608B (zh) * 2019-09-29 2021-09-17 腾讯科技（深圳）有限公司 通信方法、装置、计算机可读介质及电子设备
CN116669144A (zh) * 2020-08-28 2023-08-29 华为技术有限公司 多链路通信的链路指示方法及相关装置
CN115333995B (zh) * 2022-08-13 2024-03-22 刘学 一种路由消息机制的实现方法、系统、设备及介质

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110261742A1 (en) * 2010-04-23 2011-10-27 Qualcomm Incorporated Sequential ack for multi-user transmissions
CN104579616A (zh) * 2015-02-02 2015-04-29 成都希盟泰克科技发展有限公司 一种多天线多信道聚合多站点并行轮询方法
CN105263192A (zh) * 2010-09-15 2016-01-20 高通股份有限公司 具有接入点标识符的物理层头部
CN107637005A (zh) * 2015-05-15 2018-01-26 韦勒斯标准与技术协会公司 用于多用户上行链路传输的无线通信终端和无线通信方法
CN110381601A (zh) * 2019-07-12 2019-10-25 腾讯科技（深圳）有限公司 通信方法、装置、计算机可读介质及电子设备

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8619658B2 (en) 2005-09-21 2013-12-31 Interdigital Technology Corporation Method and apparatus for transmission management in a wireless communication system
US8619786B2 (en) * 2010-10-20 2013-12-31 Qualcomm Incorporated Facilitating distributed channel access for transmissions in a wireless communication environment
US8599735B2 (en) * 2011-09-14 2013-12-03 Cisco Technology, Inc. Group addressing for multicast transmissions for power savings at physical layer
CN103634925B (zh) * 2012-08-24 2017-10-03 华为技术有限公司 无线局域网中建立关联的方法和接入点、站点
US10230497B2 (en) * 2013-11-01 2019-03-12 Qualcomm Incorporated Protocols for multiple user frame exchanges
CN103944671B (zh) * 2014-05-22 2017-12-29 中国地质大学（武汉） 基于多信道聚合的超宽带机载数据的实时传输方法及系统
US9961668B2 (en) * 2014-10-16 2018-05-01 Qualcomm Incorporated Communication between devices of a neighbor aware network
WO2016176595A1 (en) * 2015-04-29 2016-11-03 Interdigital Patent Holdings, Inc. Triggered transmission opportunity and multiple user ack procedures in wlan systems
CN108155975B (zh) * 2016-12-06 2021-03-05 华为技术有限公司 数据传输方法、设备及系统
WO2018222177A1 (en) * 2017-05-31 2018-12-06 Intel Corporation Methods and arrangements for collaborative beamforming in multi-access point wi-fi networks
CN109151957B (zh) * 2017-06-28 2022-03-11 珠海市魅族科技有限公司 无线局域网的通信方法及通信装置、通信设备
US10484925B1 (en) * 2018-02-01 2019-11-19 Amazon Technologies, Inc. Channel diversity-aware routing in wireless mesh networks

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110261742A1 (en) * 2010-04-23 2011-10-27 Qualcomm Incorporated Sequential ack for multi-user transmissions
CN105263192A (zh) * 2010-09-15 2016-01-20 高通股份有限公司 具有接入点标识符的物理层头部
CN104579616A (zh) * 2015-02-02 2015-04-29 成都希盟泰克科技发展有限公司 一种多天线多信道聚合多站点并行轮询方法
CN107637005A (zh) * 2015-05-15 2018-01-26 韦勒斯标准与技术协会公司 用于多用户上行链路传输的无线通信终端和无线通信方法
CN110381601A (zh) * 2019-07-12 2019-10-25 腾讯科技（深圳）有限公司 通信方法、装置、计算机可读介质及电子设备

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
HUAWEI, HISILICON: "NR numerology and frame structure for unlicensed bands", 3GPP DRAFT; R1-1810123, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. RAN WG1, no. Chengdu, China; 20181008 - 20181012, 29 September 2018 (2018-09-29), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France, XP051517538 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11937294B2 (en) 2019-07-12 2024-03-19 Tencent Technology (Shenzhen) Company Limited Communication method, apparatus, computer-readable medium and electronic device

Also Published As

Publication number Publication date
EP3998830A1 (en) 2022-05-18
CN116074972A (zh) 2023-05-05
CN110381601B (zh) 2022-12-27
CN110381601A (zh) 2019-10-25
EP3998830A4 (en) 2022-08-10
JP2022522847A (ja) 2022-04-20
US20210282183A1 (en) 2021-09-09
JP7271700B2 (ja) 2023-05-11
US11937294B2 (en) 2024-03-19

Similar Documents

Publication Publication Date Title
JP7389200B2 (ja) アクセス方法及び装置
WO2021008401A1 (zh) 通信方法、装置、计算机可读介质及电子设备
US10959266B2 (en) OFDMA contention method and access point
EP3139680B1 (en) Channel access method, system and computer readable storage medium
JP4726792B2 (ja) 無線通信装置及び無線通信方法
WO2014166379A1 (zh) 一种资源预约方法及装置
US11683732B2 (en) Transmission opportunity control method and apparatus
EP3306999A1 (en) Channel access method, station and system
WO2014187087A1 (zh) 一种信道竞争方法及设备
US11956812B2 (en) Method and device for processing network allocation vector
US20160295612A1 (en) Information sending method and apparatus
WO2018107370A1 (zh) 一种点到多点的信道分配方法、装置及系统
WO2023197782A1 (zh) 信道接入方法、装置、设备及存储介质
WO2016201693A1 (zh) 数据传输方法和装置
WO2017114033A1 (zh) 一种传输机会确定方法及接入点
WO2020010991A1 (zh) 一种信道接入的方法及装置
WO2017036258A1 (zh) 竞争接入方法、竞争接入装置、站点及竞争接入系统
WO2016070438A1 (zh) 一种节点设备、系统、发送数据的方法及接收数据的方法
JP2017225079A (ja) 通信装置、通信システム、通信方法、及びコンピュータプログラム

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 20839715

Country of ref document: EP

Kind code of ref document: A1

ENP Entry into the national phase

Ref document number: 2021552181

Country of ref document: JP

Kind code of ref document: A

NENP Non-entry into the national phase

Ref country code: DE

ENP Entry into the national phase

Ref document number: 2020839715

Country of ref document: EP

Effective date: 20220214