WO2022150956A1 - 块确认方法及装置、存储介质 - Google Patents

块确认方法及装置、存储介质 Download PDF

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Publication number
WO2022150956A1
WO2022150956A1 PCT/CN2021/071229 CN2021071229W WO2022150956A1 WO 2022150956 A1 WO2022150956 A1 WO 2022150956A1 CN 2021071229 W CN2021071229 W CN 2021071229W WO 2022150956 A1 WO2022150956 A1 WO 2022150956A1
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Prior art keywords
connection
data
frame
connections
transmitted
Prior art date
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PCT/CN2021/071229
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English (en)
French (fr)
Inventor
董贤东
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北京小米移动软件有限公司
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.)
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Publication date
Application filed by 北京小米移动软件有限公司 filed Critical 北京小米移动软件有限公司
Priority to EP21918175.7A priority Critical patent/EP4280495A4/en
Priority to US18/271,959 priority patent/US20240072977A1/en
Priority to PCT/CN2021/071229 priority patent/WO2022150956A1/zh
Priority to CN202180000242.9A priority patent/CN115088210B/zh
Priority to CN202410146409.8A priority patent/CN117938320A/zh
Publication of WO2022150956A1 publication Critical patent/WO2022150956A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
    • H04L5/0055—Physical resource allocation for ACK/NACK
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/1607—Details of the supervisory signal
    • H04L1/1614—Details of the supervisory signal using bitmaps
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
    • H04L1/0056—Systems characterized by the type of code used
    • H04L1/0057—Block codes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/1607—Details of the supervisory signal
    • H04L1/1621—Group acknowledgement, i.e. the acknowledgement message defining a range of identifiers, e.g. of sequence numbers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/1607—Details of the supervisory signal
    • H04L1/1642—Formats specially adapted for sequence numbers

Definitions

  • the present disclosure relates to the field of communications, and in particular, to a block confirmation method and device, and a storage medium.
  • a BA block ACK, block acknowledgment
  • BA can be based on the MLD (Multi-link device, multi-connection device) level, where MLD means that a physical device can communicate under multiple connections. That is to say, data frames of the same TID (Task Identifier, service identifier) can be transmitted under different connections, and BA feedback can be performed under one of the connections.
  • MLD Multi-link device, multi-connection device
  • the BA frame When performing BA feedback, the BA frame includes the SSN (Starting Sequence Number, starting sequence number), but the current SSN setting is for a single connection, that is, for the SSN setting and the SN (sequence number of each data frame) , serial number) settings cannot be applied to MLD-level BA feedback.
  • SSN Startting Sequence Number, starting sequence number
  • the embodiments of the present disclosure provide a block confirmation method and device, and a storage medium.
  • a block acknowledgment method is provided.
  • the method is used for at least two data sending ends, including:
  • the at least two connections include the at least two data sending ends respectively established with the same data receiving end connect;
  • the method before the sequence number SN of each to-be-transmitted data frame corresponding to the same service identifier under each connection in the at least two connections is determined, the method also includes:
  • the maximum value of the SN of all data frames to be transmitted in the at least two connections is determined.
  • the number of starting sequence numbers SSN of all data frames to be transmitted in the at least two connections is one, and the SSN is a preset value;
  • the determining of the sequence number SN of each data frame to be transmitted corresponding to the same service identifier under each of the at least two connections includes:
  • the SN of each data frame to be transmitted under the first connection is sequentially determined based on the preset value; wherein the designated connection is the The minimum value of the SN of the data frame to be transmitted in at least two connections is a connection of the SSN;
  • the SN of each data frame to be transmitted under the second connection is sequentially determined.
  • the determining the minimum value of the SN of the data frame to be transmitted under the second connection includes:
  • the minimum value of the SN of the data frame to be transmitted under the second connection is determined.
  • the starting sequence number SSN of the data frame to be transmitted under each connection in the at least two connections is a preset value
  • the determining of the sequence number SN of each data frame to be transmitted corresponding to the same service identifier under each of the at least two connections includes:
  • the SN of each data frame to be transmitted under each connection is sequentially determined.
  • a block acknowledgment BA method is provided, and the method is used for a data receiving end, including:
  • the at least two connections include at least two data transmissions The connection established by the terminal and the data receiving terminal respectively;
  • the target BA frame is fed back through one of the at least two connections.
  • the method further includes:
  • the maximum value of the sequence number SN of the target data frame for BA feedback is determined.
  • the number of starting sequence numbers SSN of all target data frames is one, and the SSN is a preset value;
  • Described determining the target BA frame that carries out BA feedback to described all target data frames including:
  • each first bit value in the first bitmap used to indicate the receiving status of the target data frame Based on the first bit number, determine each first bit value in the first bitmap used to indicate the receiving status of the target data frame; wherein, the bit position where each first bit value is located is different from each There is a one-to-one correspondence between the SNs of the target data frames.
  • the starting sequence number SSN of the target data frame under each connection in the at least two connections is a preset value
  • Described determining the target BA frame that carries out BA feedback to described all target data frames including:
  • the target BA frame includes the connection identifier of each connection, and the second bitmap corresponding to the connection identifier of each connection one-to-one;
  • each second bit value in the second bitmap used to indicate the reception status of the target data frame under each connection wherein, the bit position where each second bit value is located is the same as that received under each connection.
  • the SN of each target data frame corresponds to each other.
  • a block acknowledgment apparatus the apparatus being used for at least two data sending ends, including:
  • the SN determination module is configured to determine the sequence number SN of each data frame to be transmitted corresponding to the same service identifier under each of the at least two connections; wherein, the at least two connections include the at least two data sending ends respectively A connection established with the same data receiver;
  • the sending module is configured to send the data frames to be transmitted including the SN under each connection.
  • a block acknowledgment apparatus the apparatus being used for a data receiving end, including:
  • the BA frame determination module is configured to, in response to receiving all target data frames corresponding to the same service identifier through at least two connections, determine target BA frames for performing BA feedback on all target data frames; wherein, the at least two Each connection includes at least two connections established by the data sending end and the data receiving end respectively;
  • a feedback module configured to feed back the target BA frame through one of the at least two connections.
  • a computer-readable storage medium where the storage medium stores a computer program, and the computer program is configured to execute the block confirmation method according to any one of the above-mentioned first aspect.
  • a computer-readable storage medium where the storage medium stores a computer program, and the computer program is configured to execute the block confirmation method according to any one of the foregoing second aspects.
  • a block confirmation apparatus including:
  • memory for storing processor-executable instructions
  • the processor is configured to execute the block confirmation method according to any one of the above-mentioned first aspect.
  • a block confirmation apparatus including:
  • memory for storing processor-executable instructions
  • the processor is configured to execute the block confirmation method according to any one of the above second aspects.
  • At least two data sending ends can respectively determine the SN of each data frame to be transmitted corresponding to the same service identifier under each connection, so as to send the data frame to be transmitted including the SN under each connection, so as to facilitate data reception
  • the terminal determines the target BA frame, realizes the BA feedback based on the MLD level, and improves the feedback efficiency.
  • At least two data sending ends may send a request frame for requesting the establishment of a BA mechanism.
  • the buffer size is used to determine the maximum value of the SN of all data frames to be transmitted.
  • the data receiving end can determine the maximum value of the SN of the received target data frame according to the size of the buffer in the request frame, which is easy to implement and has high availability.
  • the number of SSNs set by at least two data sending ends for all data frames to be transmitted may be one, and the SSN is a preset value.
  • at least two data sending ends may determine, based on the SSN, respectively SN of each data frame to be transmitted under each connection.
  • the data receiving end can perform BA feedback according to the BA frame structure in the related art, which conforms to the development of communication standards and realizes the purpose of BA feedback based on the MLD level.
  • the number of SSNs set by the at least two data sending ends for the data frame to be transmitted may be multiple, and each SSN is a preset value.
  • the at least two data sending ends may be based on the SSN, Determine the SN of each data frame to be transmitted under its own connection.
  • the target BA frame needs to carry at least the connection identifier of each connection, which also achieves the purpose of BA feedback based on the MLD level.
  • FIG. 1A is a schematic diagram showing the structure of a BA frame according to an exemplary embodiment.
  • FIG. 1B is a schematic structural diagram of a BAR information field in a BA frame according to an exemplary embodiment.
  • FIG. 1C is a schematic structural diagram of a Per TID Info field according to an exemplary embodiment.
  • 1D is a schematic structural diagram of the Block ACK Starting Sequence Control field shown according to an exemplary embodiment.
  • FIG. 1E is a schematic structural diagram of an SN according to an exemplary embodiment.
  • Fig. 2 is a schematic flowchart of a block confirmation method according to an exemplary embodiment.
  • Fig. 3 is a schematic flowchart of another block confirmation method according to an exemplary embodiment.
  • Fig. 4 is a schematic flowchart of another block confirmation method according to an exemplary embodiment.
  • Fig. 5 is a schematic flowchart of another block confirmation method according to an exemplary embodiment.
  • Fig. 6 is a schematic flowchart of another block confirmation method according to an exemplary embodiment.
  • Fig. 7 is a schematic flowchart of another block confirmation method according to an exemplary embodiment.
  • Fig. 8 is a schematic flowchart of another block confirmation method according to an exemplary embodiment.
  • Fig. 9 is a schematic flowchart of another block confirmation method according to an exemplary embodiment.
  • Fig. 10 is a schematic flowchart of another block confirmation method according to an exemplary embodiment.
  • Fig. 11 is a block diagram of a block confirmation apparatus according to an exemplary embodiment.
  • Fig. 12 is a block diagram of another block confirmation apparatus according to an exemplary embodiment.
  • first, second, third, etc. may be used in this disclosure to describe various pieces of information, such information should not be limited by these terms. These terms are only used to distinguish the same type of information from each other.
  • first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information, without departing from the scope of the present disclosure.
  • word "if” as used herein can be interpreted as "at the time of” or "when” or "in response to determining.”
  • the BA frame structure specified in the current standard is shown in Figure 1A, including Frame Control (frame control) field, Duration (duration) field, RA (Receiver Address, receiving address) field, TA (Transmitter Address, sending address) field, The BAR Control (block acknowledgement response control) field, the BAR information (block acknowledgement response information) field, and the FCS (Frame Check Sequence, frame check sequence) field.
  • Frame Control frame control
  • Duration duration
  • RA Receiveiver Address, receiving address
  • TA Transmitter Address, sending address
  • the BAR Control block acknowledgement response control
  • BAR information block acknowledgement response information
  • FCS Full Check Sequence, frame check sequence
  • the structure of the BAR information field in the BA frame is shown with reference to Figure 1B, including the Per TID Info (each TID information) field and the Block ACK Starting Sequence Control (block acknowledgment starting sequence control) field.
  • the structure of the Per TID Info field is shown with reference to FIG. 1C, including a Reseved (reserved) field and a TID Value (TID value) field.
  • the structure of the Block ACK Starting Sequence Control field is shown in Figure 1D, for example, including the Fragment Number (segment number) field and the Starting Sequence Number (starting sequence number) field.
  • the data sender when sending the data frame corresponding to the same TID, the data sender will carry the SN in the data frame.
  • the structure of the SN is shown in Figure 1E, including the Fragment Number (segment number) field and the Sequence Number (sequence number) field.
  • the current SSN setting is for a single connection, that is, the setting of the SSN and the setting of the SN of each data frame cannot be applied to the BA feedback at the MLD level.
  • the present disclosure provides a BA solution.
  • the following is an introduction from the data sender side.
  • FIG. 2 is a flowchart of a block acknowledgment BA method according to an embodiment.
  • the method can be used in a data sending end group, and the data sending end group includes two or more data sending ends. , including the following steps:
  • step 201 the sequence number SN of each to-be-transmitted data frame corresponding to the same service identifier under each of the at least two connections is determined.
  • the at least two connections include connections established by at least two data sending ends and the same data receiving end respectively.
  • Each data sender determines the SN of each to-be-transmitted data frame corresponding to the same TID under its own connection.
  • the data frame to be transmitted includes but is not limited to MSDU (MAC Service Data Unit, MAC Service Data Unit) or A-MSDU (Aggregation MSDU, Aggregation MSDU) to be transmitted.
  • step 202 the data frame to be transmitted including the SN under each connection is sent.
  • At least two data sending ends send the data frames to be transmitted including the SN under each connection to the data receiving end.
  • At least two data sending ends may simultaneously and continuously send the data to be transmitted including the SN under each connection.
  • At least two data sending ends may continuously send the data to be transmitted including the SN under different connections in a time-sharing manner or at the same time.
  • the number of data frames to be transmitted sent under each connection may be the same or different, which is not limited in the present disclosure.
  • the number of data frames to be transmitted sent under connection 1 is 4, the number of data frames to be transmitted under connection 2 is 4 or 5, and so on.
  • At least two data sending ends can respectively determine the serial number SN of each data frame to be transmitted corresponding to the same service identifier under each connection, so as to send the data frame to be transmitted including the SN under each connection, so that the data
  • the receiving end determines the target BA frame, realizes the BA feedback based on the MLD level, and improves the feedback efficiency.
  • Fig. 3 is a flowchart of a block confirmation BA method shown according to an embodiment, comprising the following steps:
  • step 301 a request frame for requesting to establish a BA mechanism is sent.
  • the request frame includes, but is not limited to, an ADDBA request frame.
  • step 302 based on the buffer size in the request frame, determine the maximum value of the SN of all data frames to be transmitted in the at least two connections.
  • At least two data senders can negotiate a buffer size (buffer size) with the data receiver through the request frame when the BA mechanism is established.
  • buffer size buffer size
  • the maximum value of the SN of all data frames to be transmitted under at least two connections established between them cannot exceed the buffer size.
  • At least two data sending ends before determining the SN of each to-be-transmitted data frame corresponding to the same service identifier under each connection, at least two data sending ends can send a request frame for requesting the establishment of a BA mechanism, according to the buffer in the request frame. Area size to determine the maximum value of the SN of all data frames to be transmitted. The data receiving end can determine the maximum value of the SN of the received target data frame according to the size of the buffer in the request frame, which is easy to implement and has high availability.
  • the number of SSNs for all data to be transmitted is one, and the SSN may be a preset value, wherein , the preset value may be any integer, including but not limited to 0, 1, -1, etc., which is not limited in the present disclosure.
  • FIG. 4 is a flowchart of a block confirmation BA method according to an embodiment, including the following steps:
  • step 401 determine the sequence number SN of each data frame to be transmitted corresponding to the same service identifier under each of the at least two connections; in response to the first connection in the at least two connections belonging to a designated connection, based on the The default value is to sequentially determine the SN of each data frame to be transmitted under the first connection.
  • one designated connection may be determined in at least two connections, and the designated connection is a connection whose minimum value of the SN of the data frame to be transmitted is the SSN, that is, the SN of the data frame to be transmitted under the designated connection It is arranged in order starting from SSN.
  • connection 1 and connection 2 the default value is 0, the first connection is connection 1, connection 1 belongs to the specified connection, there are 5 data frames to be transmitted under connection 1, and the sequence of these 5 to-be-transmitted data frames is determined.
  • the SNs of the transmitted data frames are 0, 1, 2, 3, and 4, respectively.
  • step 402 in response to the second connection in the at least two connections not belonging to the designated connection, determine the minimum value of the SN of the data frame to be transmitted under the second connection.
  • the minimum value of the SN under the second connection may be determined according to the maximum value of the SN determined by other connections.
  • the maximum value of the SN of the other connection may be added by one to obtain the minimum value of the SN of the second connection.
  • the at least two connections include connection 1 and connection 2, the default value is 0, the first connection is connection 1, connection 1 belongs to the specified connection, there are 5 data frames to be transmitted under connection 1, and the sequence of these 5 to-be-transmitted data frames is determined.
  • the SNs of the transmitted data frames are 0, 1, 2, 3, and 4, respectively.
  • the maximum value of SN under connection 1 is 4, then the minimum value of SN under connection 2 is 5, that is, the SSN under connection 2 is 5.
  • connection 3 If there is still connection 3, if the determined maximum value of SN in connection 1 and connection 2 is 8, the minimum value of SN of connection 3 is 9, and so on.
  • step 403 based on the minimum value of the SN, the SN of each data frame to be transmitted under the second connection is sequentially determined.
  • connection 2 the minimum value of SN under connection 2 is 5, and there are 4 data frames to be transmitted under connection 2, then the SNs of the 4 data frames to be transmitted under connection 2 are 5, 6, 7, 8.
  • connection 3 the minimum value of the SN under connection 3 is 9, and the SNs of the four data frames to be transmitted under connection 3 are 9, 10, 11, and 12, respectively.
  • the maximum value of the SN of the data frame to be transmitted cannot exceed the buffer size of the request frame for requesting to establish the BA mechanism. For example, if the buffer size is 15, the maximum value of the SN of all data frames to be transmitted needs to be less than or equal to 15.
  • the number of SSNs set by at least two data sending ends for all data frames to be transmitted may be one, and the SSN is a preset value.
  • at least two data sending ends may determine each The SN of each data frame to be transmitted under the connection.
  • the data receiving end can perform BA feedback according to the BA frame structure in the related art, which conforms to the development of communication standards and realizes the purpose of BA feedback based on the MLD level.
  • the starting sequence number SSN of the data frame to be transmitted under each connection is a preset value, wherein, The preset value may be any integer, including but not limited to 0, 1, -1, etc., which is not limited in the present disclosure. That is, the number of SSNs is two or more, and the number of SSNs is the same as the number of connections of at least two connections.
  • connections include connection 1, connection 2 and connection 3, the number of connections is 3, the number of SSNs is also 3, the SSN of the data frame to be transmitted under connection 1 is the preset value, and the number of connections under connection 2 and connection 3 is to be The SSN of the transmission data frame is also the preset value.
  • FIG. 5 is a flowchart of a block confirmation BA method according to an embodiment, including the following steps:
  • step 501 based on the preset value, the SN of each data frame to be transmitted under each connection is sequentially determined.
  • connection 1 For example, if at least two connections include connection 1, connection 2 and connection 3, the number of SSNs is also 3, the default value is 0, and the number of data frames to be transmitted under connection 1 is 4, then 4 data frames to be transmitted under connection 1
  • the SNs of the frames are 0, 1, 2, and 3, respectively, and the number of data frames to be transmitted under connection 2 is 3.
  • the SNs of the three data frames to be transmitted under connection 2 are 0, 1, and 2, respectively, and the number of data frames to be transmitted under connection 2 is 0, 1, and 2.
  • the number of data frames is 5, then the SNs of the 5 data frames to be transmitted under connection 3 are 0, 1, 2, 3, and 4, respectively.
  • the maximum value of the SN of all data frames to be transmitted cannot exceed the buffer size of the request frame used to request the establishment of the BA mechanism, and the total number of all the data frames to be transmitted cannot exceed the buffer size of the request frame used to request the establishment of the BA mechanism area size. For example, if the buffer size is 15, the maximum value of the SN of all data frames to be transmitted in connection 1, connection 2 and connection 3 cannot exceed 15, and the total number of data frames to be transmitted in connection 1, connection 2 and connection 3 does not exceed 15. over 15.
  • the number of SSNs set by at least two data sending ends for all data frames to be transmitted may be multiple, and each SSN is a preset value.
  • at least two data sending ends may be based on SSNs, Determine the SN of each data frame to be transmitted under its own connection.
  • the target BA frame needs to carry at least the connection identifier of each connection, which also achieves the purpose of BA feedback based on the MLD level.
  • FIG. 6 is a flowchart of a block acknowledgment BA method according to an embodiment, and the method can be used for a data receiving end, including the following steps:
  • step 601 in response to receiving all target data frames corresponding to the same service identifier through at least two connections, determine target BA frames for performing BA feedback on all target data frames.
  • the data receiving end may receive a BA request frame through one of the at least two connections, and the BA request frame is used to request the data receiving end to perform BA feedback.
  • step 602 the target BA frame is fed back through one of the at least two connections.
  • the terminal feeds back the target BA frame through the connection that has received the BA request frame in the at least two connections.
  • the data receiving end after receiving all target data frames corresponding to the same service identifier through at least two connections, the data receiving end can feed back the target BA frame through one of the connections, thereby realizing the purpose of BA feedback based on the MLD level, and improving the feedback efficiency.
  • FIG. 7 is a flow chart of a block acknowledgment BA method according to an embodiment, including the following steps:
  • step 701 a request frame for requesting to establish a BA mechanism is received.
  • the data receiving end receives the request frame through each of the at least two connections.
  • the request frame includes, but is not limited to, an ADDBA request frame.
  • step 702 based on the buffer size in the request frame, the maximum value of the sequence number SN of the target data frame for BA feedback is determined.
  • the data receiving end will determine the maximum value of the SN of the target data frame for BA feedback according to the buffer size negotiated when the BA mechanism is established.
  • the data receiving end can determine the maximum value of the SN of the received target data frame according to the size of the buffer in the request frame, which is easy to implement and has high availability.
  • the number of starting sequence numbers SSNs of all target data frames received by the data receiving end through at least two connections is one, and the SSN is a preset value, and the preset value can be any Integer, such as 0, 1, etc., then the data receiving end can determine the target BA frame according to the structure shown in FIG. 1A.
  • FIG. 8 is a flowchart of a block confirmation BA method according to an embodiment, including the following steps:
  • step 801 it is determined that the SSN included in the target BA frame is the preset value.
  • the data receiving end may set the SSN included in the target BA frame to the preset value.
  • the preset value is 0, and the SSN in the target BA is also set to 0.
  • step 802 the first bit number of the first bitmap for BA feedback included in the target BA frame is determined.
  • the first number of bits may be the total number of target data frames received by the data receiving end.
  • the first bit number of the first bitmap included in the target BA frame is 10.
  • step 803 based on the first bit number, determine each first bit value in the first bitmap for indicating the reception status of the target data frame.
  • the bit position where each first bit value is located is in one-to-one correspondence with the SN of each target data frame.
  • the bit position 1 corresponds to the target data frame whose SN is 0, and the bit value of the bit position 1 may indicate the reception status of the target data frame whose SN is 0.
  • the bit value of bit position 2 may indicate the reception status of the target data frame whose SN is 1, and so on.
  • a bit value of 1 may be used to indicate that the reception status of the target data frame is successful, and a bit value of 0 may be used to indicate that the reception status of the target data frame is a failure.
  • the first bitmap includes 6 bit positions,
  • the first bit value sequence of the 6 bit positions is: 1, 1, 1, 0, 0, 1. It should be noted that the target data frames of 0, 1, 2 and 5 may be target data frames received through different connections in at least two connections.
  • the number of SSNs set by at least two data sending ends for all data frames to be transmitted may be one, and the SSN is a preset value.
  • at least two data sending ends may determine each The SN of each data frame to be transmitted under the connection.
  • the data receiving end can perform BA feedback according to the BA frame structure in the related art, which conforms to the development of communication standards and realizes the purpose of BA feedback based on the MLD level.
  • the starting sequence number SSN of the target data frame under each of the at least two connections by the data receiving end is a preset value, that is, the SN of the target data frame received under each connection is Arranged sequentially from the preset value.
  • the determined target BA frame needs to include at least the connection identifier of each connection.
  • FIG. 9 is a flowchart of a block confirmation BA method according to an embodiment, including the following steps:
  • step 901 it is determined that the target BA frame includes connection identifiers of the connections and a second bitmap corresponding to the connection identifiers of the connections one-to-one.
  • connection 1 and connection 2 the number of second bitmaps is also 2, connection 1 corresponds to second bitmap 1, and connection 2 corresponds to second bitmap 2.
  • step 902 each second bit value used to indicate the reception status of the target data frame under each connection in the second bitmap is determined.
  • the bit position where each second bit value is located is in one-to-one correspondence with the SN of each target data frame received under each connection.
  • connection 1 For example, the number of target data frames received under connection 1 is 4, and the second bitmap 1 corresponding to connection 1 includes 4 bit positions, which are respectively used to indicate the reception status of the 4 target data frames under connection 1.
  • a bit value of 1 may be used to indicate that the reception status of the target data frame is successful, and a bit value of 0 may be used to indicate that the reception status of the target data frame is a failure.
  • connection 1 For example, under connection 1, the target data frame with SN of 0 and 1 is successfully received, and the target data frame with SN of 2 and 3 fails to be received.
  • the second bitmap 1 corresponding to connection 1 includes 4 bit positions.
  • the second bit value sequence is 1, 1, 0, 0.
  • the number of SSNs set by the at least two data sending ends for the data frame to be transmitted may be multiple, and each SSN is a preset value.
  • the at least two data sending ends may determine the SSN based on the SSN.
  • the SN of each data frame to be transmitted under its own connection.
  • the target BA frame needs to carry at least the connection identifier of each connection, which also achieves the purpose of BA feedback based on the MLD level.
  • FIG. 10 is a flowchart of a block acknowledgment BA method according to an embodiment, including the following steps:
  • a data sending end group consisting of at least two data sending ends determines the sequence number SN of each data frame to be transmitted corresponding to the same service identifier under each of the at least two connections.
  • the at least two connections include the connections respectively established by the at least two data sending ends and the same data receiving end.
  • the at least two connections include the connections respectively established by the at least two data sending ends and the same data receiving end.
  • FIG. 10 only two data transmitters are taken as an example for description, and more data transmitters may be included in an adaptive application.
  • the number of starting sequence numbers SSN of all data frames to be transmitted in the at least two connections is one, and the SSN is a preset value. If the first connection of the at least two connections belongs to the designated connection, the SN of each data frame to be transmitted under the first connection is sequentially determined based on the preset value, and the second connection of the at least two connections does not belong to the designated connection.
  • the specified connection is used to determine the minimum value of the SN of the data frame to be transmitted under the second connection, and further, based on the minimum value of the SN, the SN of each data frame to be transmitted under the second connection is sequentially determined.
  • step 1002 at least two data sending ends send data frames to be transmitted including the SN under each connection.
  • step 1003 in response to receiving all target data frames corresponding to the same service identifier through at least two connections, the data receiving end determines target BA frames for performing BA feedback on all target data frames.
  • the structure of the target BA frame is shown with reference to FIG. 1A .
  • the SSN included in the target BA frame is the preset value
  • the target BA frame includes a first bitmap
  • each first bit value of the first bitmap is used to indicate the reception status of the target data frame, used for Indicates the reception status of the target data frame.
  • step 1004 the target BA frame is fed back through one of the at least two connections.
  • the number of SSNs set by at least two data sending ends for all data frames to be transmitted may be one, and the SSN is a preset value.
  • at least two data sending ends may determine each The SN of each data frame to be transmitted under the connection.
  • the data receiving end can perform BA feedback according to the BA frame structure in the related art, which conforms to the development of communication standards and realizes the purpose of BA feedback based on the MLD level.
  • the number of SSNs set by the above at least two data sending ends for the data frame to be transmitted may be multiple, and each SSN is a preset value.
  • at least two data sending ends may determine their own connection based on the SSN.
  • SN of each data frame to be transmitted When the data receiving end performs BA feedback, the target BA frame needs to carry at least the connection identifier of each connection, which can also achieve the purpose of BA feedback based on the MLD level.
  • the present disclosure further provides an application function implementation device embodiment.
  • FIG. 11 is a block diagram of a block acknowledgment apparatus according to an exemplary embodiment.
  • the apparatus is used for at least two data sending ends, including:
  • the SN determination module 1101 is configured to determine the sequence number SN of each data frame to be transmitted corresponding to the same service identifier under each of the at least two connections; wherein, the at least two connections include the at least two data senders Connections established with the same data receiving end respectively;
  • the sending module 1102 is configured to send the to-be-transmitted data frame including the SN under each connection.
  • FIG. 12 is a block diagram of a block acknowledgment apparatus according to an exemplary embodiment.
  • the apparatus is used for a data receiving end, including:
  • the BA frame determination module 1201 is configured to, in response to receiving all target data frames corresponding to the same service identifier through at least two connections, determine target BA frames for performing BA feedback on all the target data frames; wherein the at least The two connections include at least two connections established by the data sending end and the data receiving end respectively;
  • the feedback module 1202 is configured to feed back the target BA frame through one of the at least two connections.
  • the present disclosure also provides a computer-readable storage medium, where a computer program is stored in the storage medium, and the computer program is used to execute the block acknowledgment method described above for at least two data sending end sides. .
  • the present disclosure also provides a computer-readable storage medium, where the storage medium stores a computer program, and the computer program is used to execute any one of the block confirmation methods described above for the data receiving end side.
  • a block confirmation device comprising:
  • memory for storing processor-executable instructions
  • the processor is configured to execute the block acknowledgment method described in any one of the above at least two data sending ends.
  • a block confirmation device comprising:
  • memory for storing processor-executable instructions
  • the processor is configured to execute any one of the block acknowledgment methods described above on the data receiving end side.

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Abstract

本公开提供一种块确认方法及装置、存储介质，其中，所述块确认方法包括：确定至少两个连接中各连接下对应相同业务标识的每个待传输数据帧的序列号SN；其中，所述至少两个连接包括所述至少两个数据发送端分别与同一数据接收端建立的连接；发送所述各连接下包括所述SN的待传输数据帧。本公开可以实现基于MLD级的BA反馈，提高反馈效率。

Description

块确认方法及装置、存储介质 技术领域
本公开涉及通信领域，尤其涉及块确认方法及装置、存储介质。
背景技术
目前，为了提高反馈效率，可以采用BA(block ACK，块确认)的方式对两个或两个以上数据帧的接收状况进行反馈。BA可以基于MLD(Multi-link device，多连接设备)级，其中，MLD是指一个物理设备可以在多个连接下进行通信。也就是说，相同TID(Task Identifier，业务标识符)的数据帧可以在不同的连接下进行传输，BA反馈可以在其中一个连接下进行。
在进行BA反馈时，BA帧中包括SSN(Starting Sequence Number，起始序列号)，但是目前SSN的设置是针对单连接而言的，即对于SSN的设置及每个数据帧的SN(sequence number，序列号)的设置无法适用于MLD级的BA反馈。
发明内容
为克服相关技术中存在的问题，本公开实施例提供一种块确认方法及装置、存储介质。
根据本公开实施例的第一方面，提供一种块确认方法，所述方法用于至少两个数据发送端，包括：
确定至少两个连接中各连接下对应相同业务标识的每个待传输数据帧的序列号SN；其中，所述至少两个连接包括所述至少两个数据发送端分别与同一数据接收端建立的连接；
发送所述各连接下包括所述SN的待传输数据帧。
可选地，所述确定至少两个连接中各连接下对应相同业务标识的每个 待传输数据帧的序列号SN之前，所述方法还包括：
发送用于请求建立BA机制的请求帧；
基于所述请求帧中的缓冲区大小，确定所述至少两个连接中所有待传输数据帧的SN的最大值。
可选地，所述至少两个连接中所有待传输数据帧的起始序列号SSN的数目为一个，且所述SSN为预设值；
所述确定至少两个连接中各连接下对应相同业务标识的每个待传输数据帧的序列号SN，包括：
响应于所述至少两个连接中的第一连接属于指定连接，基于所述预设值，顺序确定所述第一连接下每个待传输数据帧的SN；其中，所述指定连接是所述至少两个连接中待传输数据帧的SN的最小值为所述SSN的一个连接；
响应于所述至少两个连接中的第二连接不属于所述指定连接，确定所述第二连接下待传输数据帧的SN的最小值；
基于所述SN的最小值，顺序确定所述第二连接下每个待传输数据帧的SN。
可选地，所述确定所述第二连接下待传输数据帧的SN的最小值，包括：
基于所述至少两个连接中其他连接所确定的SN的最大值，确定所述第二连接下待传输数据帧的SN的最小值。
可选地，所述至少两个连接中所述各连接下待传输数据帧的起始序列号SSN均为预设值；
所述确定至少两个连接中各连接下对应相同业务标识的每个待传输数据帧的序列号SN，包括：
基于所述预设值，顺序确定所述各连接下每个待传输数据帧的SN。
根据本公开实施例的第二方面，提供一种块确认BA方法，所述方法用于数据接收端，包括：
响应于通过至少两个连接接收到对应相同业务标识符的所有目标数据帧，确定对所述所有目标数据帧进行BA反馈的目标BA帧；其中，所述至少两个连接包括至少两个数据发送端分别与所述数据接收端建立的连接；
通过所述至少两个连接中的一个连接，反馈所述目标BA帧。
可选地，所述方法还包括：
接收用于请求建立BA机制的请求帧；
基于所述请求帧中的缓冲区大小，确定进行BA反馈的目标数据帧的序列号SN的最大值。
可选地，所述所有目标数据帧的起始序列号SSN的数目为一个，且所述SSN为预设值；
所述确定对所述所有目标数据帧进行BA反馈的目标BA帧，包括：
确定所述目标BA帧中所包括的SSN为所述预设值；
确定所述目标BA帧中所包括的用于进行BA反馈的第一比特图的第一比特数目；
基于所述第一比特数目，确定所述第一比特图中用于指示目标数据帧的接收状况的每个第一比特值；其中，所述每个第一比特值所在的比特位置与每个目标数据帧的SN一一对应。
可选地，所述至少两个连接中各连接下目标数据帧的起始序列号SSN均为预设值；
所述确定对所述所有目标数据帧进行BA反馈的目标BA帧，包括：
确定所述目标BA帧中包括所述各连接的连接标识，以及与所述各连接的连接标识一一对应的第二比特图；
确定所述第二比特图中用于指示所述各连接下目标数据帧的接收状况的每个第二比特值；其中，每个第二比特值所在的比特位置与所述各连接下接收到的每个目标数据帧的SN一一对应。
根据本公开实施例的第三方面，提供一种块确认装置，所述装置用于至少两个数据发送端，包括：
SN确定模块，被配置为确定至少两个连接中各连接下对应相同业务标识的每个待传输数据帧的序列号SN；其中，所述至少两个连接包括所述至少两个数据发送端分别与同一数据接收端建立的连接；
发送模块，被配置为发送所述各连接下包括所述SN的待传输数据帧。
根据本公开实施例的第四方面，提供一种块确认装置，所述装置用于数据接收端，包括：
BA帧确定模块，被配置为响应于通过至少两个连接接收到对应相同业务标识符的所有目标数据帧，确定对所述所有目标数据帧进行BA反馈的目标BA帧；其中，所述至少两个连接包括至少两个数据发送端分别与所述数据接收端建立的连接；
反馈模块，被配置为通过所述至少两个连接中的一个连接，反馈所述目标BA帧。
根据本公开实施例的第五方面，提供一种计算机可读存储介质，所述存储介质存储有计算机程序，所述计算机程序用于执行上述第一方面任一项所述的块确认方法。
根据本公开实施例的第六方面，提供一种计算机可读存储介质，所述存储介质存储有计算机程序，所述计算机程序用于执行上述第二方面任一项所述的块确认方法。
根据本公开实施例的第七方面，提供一种块确认装置，包括：
处理器；
用于存储处理器可执行指令的存储器；
其中，所述处理器被配置为用于执行上述第一方面任一项所述的块确认方法。
根据本公开实施例的第八方面，提供一种块确认装置，包括：
处理器；
用于存储处理器可执行指令的存储器；
其中，所述处理器被配置为用于执行上述第二方面任一项所述的块确 认方法。
本公开的实施例提供的技术方案可以包括以下有益效果：
本公开实施例中，至少两个数据发送端可以分别确定各连接下对应相同业务标识符的每个待传输数据帧的SN，从而在各连接下发送包括SN的待传输数据帧，以便数据接收端确定目标BA帧，实现基于MLD级的BA反馈，提高反馈效率。
本公开实施例中，至少两个数据发送端在确定各连接下对应相同业务标识符的每个待传输数据帧的SN之前，可以发送用于请求建立BA机制的请求帧，根据该请求帧中缓冲区大小，来确定所有待传输数据帧的SN的最大值。数据接收端可以根据该请求帧中缓冲区大小，确定接收到的目标数据帧的SN的最大值，实现简便，可用性高。
本公开实施例中，至少两个数据发送端针对所有待传输数据帧设置的SSN的数目可以为一个，且SSN为预设值，相应地，至少两个数据发送端可以基于该SSN，分别确定各连接下每个待传输数据帧的SN。数据接收端可以按照相关技术中的BA帧结构进行BA反馈，符合通信标准的发展，实现了基于MLD级的BA反馈的目的。
本公开实施例中，至少两个数据发送端针对待传输数据帧设置的SSN的数目可以为多个，且每个SSN均为预设值，相应地，至少两个数据发送端可以基于SSN，确定自身连接下每个待传输数据帧的SN。数据接收端在进行BA反馈时，目标BA帧中至少需要携带各连接的连接标识，同样实现了基于MLD级的BA反馈的目的。
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，并不能限制本公开。
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，示出了符合本发明的实施例，并与说明书一起用于解释本发明的原理。
图1A是根据一示例性实施例示出的BA帧结构示意图。
图1B是根据一示例性实施例示出的BA帧中的BAR information字段的结构示意图。
图1C是根据一示例性实施例示出的Per TID Info字段的结构示意图。
图1D是根据一示例性实施例示出的Block ACK Starting Sequence Control字段的结构示意图。
图1E是根据一示例性实施例示出的SN的结构示意图。
图2是根据一示例性实施例示出的一种块确认方法流程示意图。
图3是根据一示例性实施例示出的另一种块确认方法流程示意图。
图4是根据一示例性实施例示出的另一种块确认方法流程示意图。
图5是根据一示例性实施例示出的另一种块确认方法流程示意图。
图6是根据一示例性实施例示出的另一种块确认方法流程示意图。
图7是根据一示例性实施例示出的另一种块确认方法流程示意图。
图8是根据一示例性实施例示出的另一种块确认方法流程示意图。
图9是根据一示例性实施例示出的另一种块确认方法流程示意图。
图10是根据一示例性实施例示出的另一种块确认方法流程示意图。
图11是根据一示例性实施例示出的一种块确认装置框图。
图12是根据一示例性实施例示出的另一种块确认装置框图。
具体实施方式
这里将详细地对示例性实施例进行说明，其示例表示在附图中。下面的描述涉及附图时，除非另有表示，不同附图中的相同数字表示相同或相似的要素。以下示例性实施例中所描述的实施方式并不代表与本发明相一致的所有实施方式。相反，它们仅是与如所附权利要求书中所详述的、本发明的一些方面相一致的装置和方法的例子。
在本公开使用的术语是仅仅出于描述特定实施例的目的，而非旨在限制本公开。在本公开和所附权利要求书中所使用的单数形式的“一种”、“所 述”和“该”也旨在包括多数形式，除非上下文清楚地表示其他含义。还应当理解，本文中使用的术语“和/或”是指并包含一个或多个相关联的列出项目的任何或所有可能组合。
应当理解，尽管在本公开可能采用术语第一、第二、第三等来描述各种信息，但这些信息不应限于这些术语。这些术语仅用来将同一类型的信息彼此区分开。例如，在不脱离本公开范围的情况下，第一信息也可以被称为第二信息，类似地，第二信息也可以被称为第一信息。取决于语境，如在此所使用的词语“如果”可以被解释成为“在……时”或“当……时”或“响应于确定”。
目前标准中规定的BA帧结构参照图1A所示，包括Frame Control(帧控制)字段、Duration(持续时间)字段、RA(Receiver Address，接收地址)字段、TA(Transmitter Address，发送地址)字段、BAR Control(块确认响应控制)字段、BAR information(块确认响应信息)字段以及FCS(Frame Check Sequence，帧校验序列)字段。
BA帧中的BAR information字段的结构参照图1B所示，包括Per TID Info(每个TID信息)字段和Block ACK Starting Sequence Control(块确认启动顺序控制)字段。Per TID Info字段的结构参照图1C所示，包括Reseved(保留)字段和TID Value(TID值)字段。Block ACK Starting Sequence Control字段的结构例如图1D所示，包括Fragment Number(段序号)字段和Starting Sequence Number(起始序列号)字段。
另外，数据发送端在发送相同TID对应的数据帧时，会在数据帧中携带SN，SN的结构例如图1E所示，包括Fragment Number(段序号)字段和Sequence Number(序列号)字段。
但是目前SSN的设置是针对单连接而言的，即对于SSN的设置及每个数据帧的SN的设置无法适用于MLD级的BA反馈。
为了解决上述问题，本公开提供了一种BA方案。下面先从数据发送端侧进行介绍。
参照图2所示，图2是根据一实施例示出的一种块确认BA方法流程图，该方法可以用于数据发送端组，该数据发送端组中包括两个或两个以上数据发送端，包括以下步骤：
在步骤201中，确定至少两个连接中各连接下对应相同业务标识的每个待传输数据帧的序列号SN。
在本公开实施例中，至少两个连接包括至少两个数据发送端分别与同一数据接收端建立的连接。每个数据发送端确定自身连接下对应相同TID的每个待传输数据帧的SN。其中，待传输数据帧包括但不限于待传输的MSDU(MAC Service Data Unit，MAC服务数据单元)或者A-MSDU(Aggregation MSDU，聚合MSDU)。
在步骤202中，发送所述各连接下包括所述SN的待传输数据帧。
上述实施例可以独立被执行，也可以与本公开的其他任何一个实施例一起被执行，本公开实施例中并不对此作出限定。
在本公开实施例中，至少两个数据发送端将各连接下包括SN的待传输数据帧发送给数据接收端。
在一个可能地示例中，至少两个数据发送端可以同时连续发送各连接下包括SN的待传输数据。
在另一个可能地示例中，至少两个数据发送端可以分时或同时在不同连接下连续发送包括SN的待传输数据。
在本公开实施例中，各连接下发送的待传输数据帧的数目可以相同或不同，本公开对此不作限定。例如连接1下发送的待传输数据帧的数目为4，连接2下的待传输数据帧的数目为4或5等。
上述实施例中，至少两个数据发送端可以分别确定各连接下对应相同业务标识符的每个待传输数据帧的序列号SN，从而在各连接下发送包括SN的待传输数据帧，以便数据接收端确定目标BA帧，实现基于MLD级的BA反馈，提高反馈效率。
在一些可选实施例中，参照图3所示，图3是根据一实施例示出的一 种块确认BA方法流程图，包括以下步骤：
在步骤301中，发送用于请求建立BA机制的请求帧。
在本公开实施例中，该请求帧包括但不限于ADDBA请求帧。
在步骤302中，基于所述请求帧中的缓冲区大小，确定所述至少两个连接中所有待传输数据帧的SN的最大值。
上述实施例可以独立被执行，也可以与本公开的其他任何一个实施例一起被执行，本公开实施例中并不对此作出限定。在本公开实施例中，至少两个数据发送端可以通过请求帧，在BA机制建立时与数据接收端协商buffer size(缓冲区大小)，进一步地，至少两个数据发送端与数据接收端之间建立的至少两个连接下所有待传输数据帧的SN的最大值不能超过buffer size。
上述实施例中，至少两个数据发送端在确定各连接下对应相同业务标识符的每个待传输数据帧的SN之前，可以发送用于请求建立BA机制的请求帧，根据该请求帧中缓冲区大小，来确定所有待传输数据帧的SN的最大值。数据接收端可以根据该请求帧中缓冲区大小，确定接收到的目标数据帧的SN的最大值，实现简便，可用性高。
在一些可选实施例中，至少两个数据发送端与同一数据接收端之间建立的至少两个连接中，所有待传输数据的SSN的数目为一个，且该SSN可以为预设值，其中，预设值可以是任意整数，包括但不限于0、1、-1等，本公开对此不作限定。
参照图4所示，图4是根据一实施例示出的一种块确认BA方法流程图，包括以下步骤：
在步骤401中，确定至少两个连接中各连接下对应相同业务标识的每个待传输数据帧的序列号SN；响应于所述至少两个连接中的第一连接属于指定连接，基于所述预设值，顺序确定所述第一连接下每个待传输数据帧的SN。
在本公开实施例中，可以在至少两个连接中确定一个指定连接，该指 定连接是待传输数据帧的SN的最小值为所述SSN的一个连接，即指定连接下待传输数据帧的SN是从SSN开始顺序排列的。
例如，至少两个连接包括连接1和连接2，预设值为0，第一连接为连接1，连接1属于指定连接，连接1下有5个待传输数据帧，顺序确定的这5个待传输数据帧的SN分别为0、1、2、3、4。
在步骤402中，响应于所述至少两个连接中的第二连接不属于所述指定连接，确定所述第二连接下待传输数据帧的SN的最小值。
在本公开实施例中，第二连接如果不属于指定连接，那么可以根据其他连接已确定的SN的最大值，来确定第二连接下SN的最小值。在一个示例中，可以将其他连接的SN的最大值加一，得到第二连接下SN的最小值。
例如，至少两个连接包括连接1和连接2，预设值为0，第一连接为连接1，连接1属于指定连接，连接1下有5个待传输数据帧，顺序确定的这5个待传输数据帧的SN分别为0、1、2、3、4。连接1下SN的最大值为4，那么连接2下的SN的最小值为5，即在连接2下SSN为5。
如果还有连接3，在连接1和连接2中已确定的SN的最大值为8的情况下，连接3的SN的最小值为9，以此类推。
在步骤403中，基于所述SN的最小值，顺序确定所述第二连接下每个待传输数据帧的SN。
例如，第二连接为连接2，连接2下的SN的最小值为5，连接2下有4个待传输数据帧，那么连接2下的4个待传输数据帧的SN分别为5、6、7、8。
再例如，第二连接为连接3，连接3下的SN的最小值为9，连接3下4个待传输数据帧的SN分别为9、10、11、12。
当然，在本公开实施例中，待传输数据帧的SN的最大值不能超过用于请求建立BA机制的请求帧的缓冲区大小。例如，缓存区大小为15，所有待传输数据帧的SN的最大值需要小于或等于15。
上述实施例中，至少两个数据发送端针对所有待传输数据帧设置的 SSN的数目可以为一个，且SSN为预设值，相应地，至少两个数据发送端可以基于该SSN，分别确定各连接下每个待传输数据帧的SN。数据接收端可以按照相关技术中的BA帧结构进行BA反馈，符合通信标准的发展，实现了基于MLD级的BA反馈的目的。
在一些可选实施例中，至少两个数据发送端与同一数据接收端之间建立的至少两个连接中，各连接下待传输数据帧的起始序列号SSN均为预设值，其中，预设值可以是任意整数，包括但不限于0、1、-1等，本公开对此不作限定。即SSN的数目为两个或两个以上，SSN的数目与至少两个连接的连接数目相同。
例如，至少两个连接包括连接1、连接2和连接3，连接数目为3，SSN的数目也为3，连接1下待传输数据帧的SSN为该预设值，连接2和连接3下待传输数据帧的SSN也为该预设值。
参照图5所示，图5是根据一实施例示出的一种块确认BA方法流程图，包括以下步骤：
在步骤501中，基于所述预设值，顺序确定所述各连接下每个待传输数据帧的SN。
例如，至少两个连接包括连接1、连接2和连接3，SSN的数目也为3，预设值为0，连接1下待传输数据帧的数目为4，那么连接1下4个待传输数据帧的SN分别为0、1、2、3，连接2下待传输数据帧的数目为3，那么连接2下3个待传输数据帧的SN分别为0、1、2，连接2下待传输数据帧的数目为5，那么连接3下5个待传输数据帧的SN分别为0、1、2、3、4。
当然，所有待传输数据帧的SN的最大值不能超过用于请求建立BA机制的请求帧的缓冲区大小，且所有待传输数据帧的总数目不能超过用于请求建立BA机制的请求帧的缓冲区大小。例如，缓冲区大小为15，连接1、连接2和连接3中所有待传输数据帧的SN的最大值不能超过15，且连接1、连接2和连接3中所有待传输数据帧的总数目不超过15。
上述实施例中，至少两个数据发送端针对所有待传输数据帧设置的SSN的数目可以为多个，且每个SSN均为预设值，相应地，至少两个数据发送端可以基于SSN，确定自身连接下每个待传输数据帧的SN。数据接收端在进行BA反馈时，目标BA帧中至少需要携带各连接的连接标识，同样实现了基于MLD级的BA反馈的目的。
上述实施例可以独立被执行，也可以与本公开的其他任何一个实施例一起被执行，本公开实施例中并不对此作出限定。
下面再从数据接收端侧介绍一下本公开实施例提供的BA方案。
参照图6所示，图6是根据一实施例示出的一种块确认BA方法流程图，该方法可以用于数据接收端，包括以下步骤：
在步骤601中，响应于通过至少两个连接接收到对应相同业务标识符的所有目标数据帧，确定对所述所有目标数据帧进行BA反馈的目标BA帧。
在本公开实施例中，数据接收端在接收到所有目标数据帧之后，可以通过至少两个连接中的一个连接接收BA请求帧，BA请求帧用于请求数据接收端进行BA反馈。
在步骤602中，通过所述至少两个连接中的一个连接，反馈所述目标BA帧。
在本公开实施例中，终端通过至少两个连接中的接收到BA请求帧的连接，反馈目标BA帧。
上述实施例中，数据接收端可以在通过至少两个连接接收到对应相同业务标识符的所有目标数据帧之后，通过其中一个连接反馈目标BA帧，实现了基于MLD级的BA反馈的目的，提高了反馈效率。
在一些可选实施例中，参照图7所示，图7是根据一实施例示出的一种块确认BA方法流程图，包括以下步骤：
在步骤701中，接收用于请求建立BA机制的请求帧。
在本公开实施例中，数据接收端通过至少两个连接中的各连接接收该 请求帧。在一个示例中，该请求帧包括但不限于ADDBA请求帧。
在步骤702中，基于所述请求帧中的缓冲区大小，确定进行BA反馈的目标数据帧的序列号SN的最大值。
在本公开实施例中，数据接收端会根据BA机制建立时协商的缓冲区大小，确定进行BA反馈的目标数据帧的SN的最大值。
上述实施例中，数据接收端可以根据该请求帧中缓冲区大小，确定接收到的目标数据帧的SN的最大值，实现简便，可用性高。
在一些可选实施例中，数据接收端通过至少两个连接接收到的所有目标数据帧的起始序列号SSN的数目为一个，且所述SSN为预设值，该预设值可以为任意整数，例如0、1等，那么数据接收端可以按照图1A所示的结构，确定目标BA帧。
上述实施例可以独立被执行，也可以与本公开的其他任何一个实施例一起被执行，本公开实施例中并不对此作出限定。
参照图8所示，图8是根据一实施例示出的一种块确认BA方法流程图，包括以下步骤：
在步骤801中，确定所述目标BA帧中所包括的SSN为所述预设值。
在本公开实施例中，数据接收端可以将目标BA帧中所包括的SSN设置为该预设值。例如预设值为0，目标BA中的SSN也设置为0。
在步骤802中，确定所述目标BA帧中所包括的用于进行BA反馈的第一比特图的第一比特数目。
在本公开实施例中，第一比特数目可以为数据接收端接收到的目标数据帧的总数目。
例如，数据接收端通过至少两个连接共接收到10个目标数据帧，那么目标BA帧中包括的第一比特图的第一比特数目为10。
在步骤803中，基于所述第一比特数目，确定所述第一比特图中用于指示目标数据帧的接收状况的每个第一比特值。
在本公开实施例中，所述每个第一比特值所在的比特位置与每个目标 数据帧的SN一一对应。例如，比特位置1对应SN为0的目标数据帧，该比特位置1的比特值可以指示SN为0的目标数据帧的接收状况。比特位置2的比特值可以指示SN为1的目标数据帧的接收状况，以此类推。
在一个示例中，可以用比特值1表示目标数据帧的接收状况为成功，用比特值0表示目标数据帧的接收状况为失败。
例如，第一比特数目为6，SN序号为0、1、2和5的目标数据帧接收成功，SN序号为3和4的目标数据帧接收失败，那么第一比特图包括6个比特位置，6个比特位置的第一比特值顺序为：1、1、1、0、0、1。需要说明的是，0、1、2和5的目标数据帧可以是通过至少两个连接中不同连接接收到的目标数据帧。
以上仅为示例性说明，其他在BA帧中反馈通过至少两个连接接收到的所有目标数据帧的接收状况的实现方式，均应属于本公开的保护范围。
上述实施例中，至少两个数据发送端针对所有待传输数据帧设置的SSN的数目可以为一个，且SSN为预设值，相应地，至少两个数据发送端可以基于该SSN，分别确定各连接下每个待传输数据帧的SN。数据接收端可以按照相关技术中的BA帧结构进行BA反馈，符合通信标准的发展，实现了基于MLD级的BA反馈的目的。
在一些可选实施例中，数据接收端通过至少两个连接中各连接下目标数据帧的起始序列号SSN均为预设值，即每个连接下接收到的目标数据帧的SN均是从预设值开始顺序排列的。在本公开实施例中，确定的目标BA帧中至少需要包括各连接的连接标识。
上述实施例可以独立被执行，也可以与本公开的其他任何一个实施例一起被执行，本公开实施例中并不对此作出限定。
参照图9所示，图9是根据一实施例示出的一种块确认BA方法流程图，包括以下步骤：
在步骤901中，确定所述目标BA帧中包括所述各连接的连接标识，以及与所述各连接的连接标识一一对应的第二比特图。
例如，至少两个连接包括连接1和连接2，第二比特图的数目也为2，连接1对应第二比特图1，连接2对应第二比特图2。
在步骤902中，确定所述第二比特图中用于指示所述各连接下目标数据帧的接收状况的每个第二比特值。
在本公开实施例中，每个第二比特值所在的比特位置与所述各连接下接收到的每个目标数据帧的SN一一对应。
例如，连接1下接收到的目标数据帧的数目为4，连接1对应的第二比特图1所包括的比特位置有4个，分别用于指示连接1下4个目标数据帧的接收状况。
在一个示例中，可以用比特值1表示目标数据帧的接收状况为成功，用比特值0表示目标数据帧的接收状况为失败。
例如，在连接1下SN为0、1的目标数据帧接收成功，SN为2、3的目标数据帧接收失败，连接1对应的第二比特图1包括4个比特位置，4个比特位置的第二比特值顺序为1、1、0、0。
上述实施例中，至少两个数据发送端针对待传输数据帧设置的SSN的数目可以为多个，且每个SSN均为预设值，相应地，至少两个数据发送端可以基于SSN，确定自身连接下每个待传输数据帧的SN。数据接收端在进行BA反馈时，目标BA帧中至少需要携带各连接的连接标识，同样实现了基于MLD级的BA反馈的目的。
上述实施例可以独立被执行，也可以与本公开的其他任何一个实施例一起被执行，本公开实施例中并不对此作出限定。
在一些可选实施例中，参照图10所示，图10是根据一实施例示出的一种块确认BA方法流程图，包括以下步骤：
在步骤1001中，由至少两个数据发送端组成的数据发送端组确定至少两个连接中各连接下对应相同业务标识的每个待传输数据帧的序列号SN。
其中，所述至少两个连接包括所述至少两个数据发送端分别与同一数据接收端建立的连接。图10中仅以两个数据发送端为例进行说明，适应应 用中，可以包括更多数据发送端。
所述至少两个连接中所有待传输数据帧的起始序列号SSN的数目为一个，且所述SSN为预设值。如果至少两个连接中的第一连接属于指定连接，基于所述预设值，顺序确定所述第一连接下每个待传输数据帧的SN，至少两个连接中的第二连接不属于所述指定连接，确定所述第二连接下待传输数据帧的SN的最小值，进一步地，基于所述SN的最小值，顺序确定所述第二连接下每个待传输数据帧的SN。
在步骤1002中，至少两个数据发送端发送所述各连接下包括所述SN的待传输数据帧。
在步骤1003中，数据接收端响应于通过至少两个连接接收到对应相同业务标识符的所有目标数据帧，确定对所述所有目标数据帧进行BA反馈的目标BA帧。
在本公开实施例中，目标BA帧的结构参照图1A所示。其中，目标BA帧中所包括的SSN为所述预设值，目标BA帧中包括第一比特图，第一比特图的每个第一比特值用于指示目标数据帧的接收状况，用于指示目标数据帧的接收状况。
在步骤1004中，通过所述至少两个连接中的一个连接，反馈所述目标BA帧。
上述实施例中，至少两个数据发送端针对所有待传输数据帧设置的SSN的数目可以为一个，且SSN为预设值，相应地，至少两个数据发送端可以基于该SSN，分别确定各连接下每个待传输数据帧的SN。数据接收端可以按照相关技术中的BA帧结构进行BA反馈，符合通信标准的发展，实现了基于MLD级的BA反馈的目的。
当然，上述至少两个数据发送端针对待传输数据帧设置的SSN的数目可以为多个，且每个SSN均为预设值，相应地，至少两个数据发送端可以基于SSN，确定自身连接下每个待传输数据帧的SN。数据接收端在进行BA反馈时，目标BA帧中至少需要携带各连接的连接标识，同样可以实现 基于MLD级的BA反馈的目的。
上述实施例可以独立被执行，也可以与本公开的其他任何一个实施例一起被执行，本公开实施例中并不对此作出限定。
与前述应用功能实现方法实施例相对应，本公开还提供了应用功能实现装置的实施例。
参照图11，图11是根据一示例性实施例示出的一种块确认装置框图，所述装置用于至少两个数据发送端，包括：
SN确定模块1101，被配置为确定至少两个连接中各连接下对应相同业务标识的每个待传输数据帧的序列号SN；其中，所述至少两个连接包括所述至少两个数据发送端分别与同一数据接收端建立的连接；
发送模块1102，被配置为发送所述各连接下包括所述SN的待传输数据帧。
参照图12，图12是根据一示例性实施例示出的一种块确认装置框图，所述装置用于数据接收端，包括：
BA帧确定模块1201，被配置为响应于通过至少两个连接接收到对应相同业务标识符的所有目标数据帧，确定对所述所有目标数据帧进行BA反馈的目标BA帧；其中，所述至少两个连接包括至少两个数据发送端分别与所述数据接收端建立的连接；
反馈模块1202，被配置为通过所述至少两个连接中的一个连接，反馈所述目标BA帧。
对于装置实施例而言，由于其基本对应于方法实施例，所以相关之处参见方法实施例的部分说明即可。以上所描述的装置实施例仅仅是示意性的，其中上述作为分离部件说明的单元可以是或者也可以不是物理上分开的，作为单元显示的部件可以是或者也可以不是物理单元，即可以位于一个地方，或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部模块来实现本公开方案的目的。本领域普通技术人员在不付出创造性劳动的情况下，即可以理解并实施。
相应地，本公开还提供了一种计算机可读存储介质，所述存储介质存储有计算机程序，所述计算机程序用于执行上述用于至少两个数据发送端侧任一所述的块确认方法。
相应地，本公开还提供了一种计算机可读存储介质，所述存储介质存储有计算机程序，所述计算机程序用于执行上述用于数据接收端侧任一所述的块确认方法。
相应地，本公开还提供了一种块确认装置，包括：
处理器；
用于存储处理器可执行指令的存储器；
其中，所述处理器被配置为用于执行上述至少两个数据发送端任一所述的块确认方法。
相应地，本公开还提供了一种块确认装置，包括：
处理器；
用于存储处理器可执行指令的存储器；
其中，所述处理器被配置为用于执行上述数据接收端侧任一所述的块确认方法。
本领域技术人员在考虑说明书及实践这里公开的发明后，将容易想到本公开的其它实施方案。本公开旨在涵盖本公开的任何变型、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公开的一般性原理并包括本公开未公开的本技术领域中的公知常识或者惯用技术手段。说明书和实施例仅被视为示例性的，本公开的真正范围和精神由下面的权利要求指出。
应当理解的是，本公开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。本公开的范围仅由所附的权利要求来限制。

Claims (15)

  1. 一种块确认BA方法，其特征在于，所述方法用于至少两个数据发送端，包括：
    确定至少两个连接中各连接下对应相同业务标识的每个待传输数据帧的序列号SN；其中，所述至少两个连接包括所述至少两个数据发送端分别与同一数据接收端建立的连接；
    发送所述各连接下包括所述SN的待传输数据帧。
  2. 根据权利要求1所述的方法，其特征在于，所述确定至少两个连接中各连接下对应相同业务标识的每个待传输数据帧的序列号SN之前，所述方法还包括：
    发送用于请求建立BA机制的请求帧；
    基于所述请求帧中的缓冲区大小，确定所述至少两个连接中所有待传输数据帧的SN的最大值。
  3. 根据权利要求1所述的方法，其特征在于，所述至少两个连接中所有待传输数据帧的起始序列号SSN的数目为一个，且所述SSN为预设值；
    所述确定至少两个连接中各连接下对应相同业务标识的每个待传输数据帧的序列号SN，包括：
    响应于所述至少两个连接中的第一连接属于指定连接，基于所述预设值，顺序确定所述第一连接下每个待传输数据帧的SN；其中，所述指定连接是所述至少两个连接中待传输数据帧的SN的最小值为所述SSN的一个连接；
    响应于所述至少两个连接中的第二连接不属于所述指定连接，确定所述第二连接下待传输数据帧的SN的最小值；
    基于所述SN的最小值，顺序确定所述第二连接下每个待传输数据帧的SN。
  4. 根据权利要求3所述的方法，其特征在于，所述确定所述第二连接 下待传输数据帧的SN的最小值，包括：
    基于所述至少两个连接中其他连接所确定的SN的最大值，确定所述第二连接下待传输数据帧的SN的最小值。
  5. 根据权利要求1所述的方法，其特征在于，所述至少两个连接中所述各连接下待传输数据帧的起始序列号SSN均为预设值；
    所述确定至少两个连接中各连接下对应相同业务标识的每个待传输数据帧的序列号SN，包括：
    基于所述预设值，顺序确定所述各连接下每个待传输数据帧的SN。
  6. 一种块确认BA方法，其特征在于，所述方法用于数据接收端，包括：
    响应于通过至少两个连接接收到对应相同业务标识符的所有目标数据帧，确定对所述所有目标数据帧进行BA反馈的目标BA帧；其中，所述至少两个连接包括至少两个数据发送端分别与所述数据接收端建立的连接；
    通过所述至少两个连接中的一个连接，反馈所述目标BA帧。
  7. 根据权利要求6所述的方法，其特征在于，所述方法还包括：
    接收用于请求建立BA机制的请求帧；
    基于所述请求帧中的缓冲区大小，确定进行BA反馈的目标数据帧的序列号SN的最大值。
  8. 根据权利要求6所述的方法，其特征在于，所述所有目标数据帧的起始序列号SSN的数目为一个，且所述SSN为预设值；
    所述确定对所述所有目标数据帧进行BA反馈的目标BA帧，包括：
    确定所述目标BA帧中所包括的SSN为所述预设值；
    确定所述目标BA帧中所包括的用于进行BA反馈的第一比特图的第一比特数目；
    基于所述第一比特数目，确定所述第一比特图中用于指示目标数据帧的接收状况的每个第一比特值；其中，所述每个第一比特值所在的比特位置与每个目标数据帧的SN一一对应。
  9. 根据权利要求6所述的方法，其特征在于，所述至少两个连接中各连接下目标数据帧的起始序列号SSN均为预设值；
    所述确定对所述所有目标数据帧进行BA反馈的目标BA帧，包括：
    确定所述目标BA帧中包括所述各连接的连接标识，以及与所述各连接的连接标识一一对应的第二比特图；
    确定所述第二比特图中用于指示所述各连接下目标数据帧的接收状况的每个第二比特值；其中，每个第二比特值所在的比特位置与所述各连接下接收到的每个目标数据帧的SN一一对应。
  10. 一种块确认装置，其特征在于，所述装置用于至少两个数据发送端，包括：
    SN确定模块，被配置为确定至少两个连接中各连接下对应相同业务标识的每个待传输数据帧的序列号SN；其中，所述至少两个连接包括所述至少两个数据发送端分别与同一数据接收端建立的连接；
    发送模块，被配置为发送所述各连接下包括所述SN的待传输数据帧。
  11. 一种块确认装置，其特征在于，所述装置用于数据接收端，包括：
    BA帧确定模块，被配置为响应于通过至少两个连接接收到对应相同业务标识符的所有目标数据帧，确定对所述所有目标数据帧进行BA反馈的目标BA帧；其中，所述至少两个连接包括至少两个数据发送端分别与所述数据接收端建立的连接；
    反馈模块，被配置为通过所述至少两个连接中的一个连接，反馈所述目标BA帧。
  12. 一种计算机可读存储介质，其特征在于，所述存储介质存储有计算机程序，所述计算机程序用于执行上述权利要求1-5任一项所述的块确认方法。
  13. 一种计算机可读存储介质，其特征在于，所述存储介质存储有计算机程序，所述计算机程序用于执行上述权利要求6-9任一项所述的块确认方法。
  14. 一种块确认装置，其特征在于，包括：
    处理器；
    用于存储处理器可执行指令的存储器；
    其中，所述处理器被配置为用于执行上述权利要求1-5任一项所述的块确认方法。
  15. 一种块确认装置，其特征在于，包括：
    处理器；
    用于存储处理器可执行指令的存储器；
    其中，所述处理器被配置为用于执行上述权利要求6-9任一项所述的块确认方法。
PCT/CN2021/071229 2021-01-12 2021-01-12 块确认方法及装置、存储介质 WO2022150956A1 (zh)

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