# US 2017/0257902 A1 · Parallel multiuser data transmission method and primary node > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2017/0257902 A1 - Document ID: US20170257902A1 - Status: Published application - Kind: A1 - Application number: 15/510,793 - Filed: 2015-03-23 - Published: 2017-09-07 - Earliest claimed: 2014-09-12 - Assignees: Zte Corporation - Applicants: Zte Corporation - Inventors: Weimin XING; Kaibo TIAN; Nan LI; Kaiying LV - Web page: https://patentgrep.com/patent/US20170257902A1 ## CPC - H04W 76/15: Setup of multiple wireless link connections - H04L 1/1614: {using bitmaps} - H04L 1/1887: {Scheduling and prioritising arrangements} - H04L 1/1896: {ARQ related signaling} - H04W 72/0446: Resources in time domain, e.g. slots or frames - H04W 84/12: WLAN [Wireless Local Area Networks] - H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72) - H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M) ## Abstract A method for implementing parallel multi-user data transmission and a primary node are disclosed. The method includes: a primary node receiving uplink parallel multi-user data; and the primary node using a radio frame carrying multiple pieces of user data acknowledgement/paging information as a feedback frame to acknowledge the received uplink parallel multi-user data, and indicate respectively whether each of users is able to continue to send uplink data. ## Claims ### Claim 1 A method for implementing parallel multi-user data transmission, comprising: a primary node receiving uplink parallel multi-user data; and the primary node using a radio frame carrying multiple pieces of user data acknowledgement/paging information as a feedback frame to acknowledge the received uplink parallel multi-user data, and indicate respectively whether each of users is able to continue to send uplink data. ### Claim 2 (depends on 1) The method according to claim 1, wherein a sending mode adopted by the feedback frame is: sending using a frame format decodable by all wireless local area network, WLAN, devices; sending using a downlink parallel multi-user manner. ### Claim 3 (depends on 2) The method according to claim 2, wherein the downlink parallel multi-user manner is a downlink orthogonal frequency division multiple access, OFDMA, manner, a downlink multi-user multi-input multi-output, MU-MIMO, manner, or a downlink interleave-division multiple-access, IDMA, manner. ### Claim 4 (depends on 1) The method according to claim 1, wherein the feedback frame comprises at least a frame head and a frame body, wherein the frame head comprises a sending address field and a receiving address field, wherein the sending address field is used for indicating address information of a device sending the feedback frame, and the receiving address field is used for indicating destination information of receiving the feedback frame; and the frame body comprises an acknowledgement/paging control field and N user data acknowledgement/paging information fields, wherein each of the user data acknowledgement/paging information field corresponds to one user in uplink multi-user data transmission, and N represents the total number of the users and is an integer great than or equal to 2. ### Claim 5 (depends on 4) The method according to claim 4, wherein each of the user data acknowledgement/paging information fields comprises a paging indication field used for indicating whether a user corresponding to said user data acknowledgement/paging information field is able to send the uplink data in a subsequent uplink multi-user radio frame; or, the acknowledgement/paging control field comprises a multi-user paging indication field used for indicating respectively whether each of the users is able to send the uplink data in a subsequent uplink multi-user radio frame. ### Claim 6 (depends on 5) The method according to claim 5, wherein the acknowledgement/paging control field further comprises a frame format control field and a number field of the user data acknowledgement/paging information field, wherein the frame format control field is used for indicating that the feedback frame is used for acknowledgement/paging of the uplink multi-user data, and the number field of the user data acknowledgement/paging information field is used for indicating the number of the user data acknowledgement/paging information fields, a value of the number field of the user data acknowledgement/paging information field is the number N of the users in the uplink multi-user data transmission; and the user data acknowledgement/paging information field further comprises a user identity field, a traffic stream identity field, acknowledgement information sequence control information and an acknowledgement information bitmap, wherein the user identity field is used for representing the user corresponding to the user data acknowledgement/paging information field, the traffic stream identity field is used for representing an identity of a traffic stream in which a data unit corresponding to a right and wrong indication in the acknowledgement information bitmap is located, the acknowledgement information sequence control information is used for representing a sequence number range of the data unit corresponding to the right and wrong indication in the acknowledgement information bitmap, and the acknowledgement information bitmap is a bit map and each bit corresponds to a right and wrong indication of one data unit in the traffic stream. ### Claim 7 (depends on 4) The method according to claim 4, wherein the frame head further comprises a frame control field used for indicating that a frame in which the frame control field is located is the feedback frame carrying the multiple pieces of user data acknowledgement/paging information. ### Claim 8 (depends on 4) The method according to claim 4, wherein the frame head further comprises a duration field used for determining a length of an uplink multi-user radio frame for the users who are indicated to be able to send the uplink data in the next uplink multi-user data transmission. ### Claim 9 (depends on 4) The method according to claim 4, wherein the feedback frame further comprises a frame check. ### Claim 10 (depends on 1) The method according to claim 1, wherein the parallel multi-user data transmission is in one transmission opportunity, TXOP, or service period; and the method further comprises: time occupied by multi-user multi-frame exchange in the parallel multi-user data transmission is within a time threshold, wherein the time threshold is a limit value of a duration of the TXOP or service period. ### Claim 11 (depends on 10) The method according to claim 10, wherein the time threshold is a fixed duration; or the time threshold is determined by data attributes, station attributes, or quality of service, QoS, requirements of the uplink multi-user. ### Claim 12 (depends on 5) The method according to claim 5, wherein a mode of the multi-user paging indication field indicating whether each of the users is able to send the uplink data in the subsequent uplink multi-user radio frame is: indicating that the number of the users who are allowed to send the uplink data in the subsequent uplink multi-user radio frame is M, and then the first M corresponding users in the N user data acknowledgement/paging information fields are allowed to send the uplink data in the subsequent uplink multi-user radio frame, wherein M is less than or equal to N. ### Claim 13 A primary node, comprising a receiving module and an acknowledgement/paging module, wherein the receiving module is arranged to receive uplink parallel multi-user data; and the acknowledgement/paging module is arranged to use a radio frame carrying multiple pieces of user data acknowledgement/paging information as a feedback frame to acknowledge the received uplink parallel multi-user data, and indicate respectively whether each of users is able to continue to send uplink data. ### Claim 14 (depends on 13) The primary node according to claim 13, wherein the acknowledgement/paging module is arranged to send the feedback frame using a downlink parallel multi-user manner of a frame format decodable by all WLAN devices, wherein the feedback frame carries the multiple pieces of user data acknowledgement/paging information which acknowledge the received uplink parallel multi-user data and indicate whether to be able to send the uplink data. ### Claim 15 (depends on 13) The primary node according to claim 13, wherein the feedback frame comprises at least a frame head and a frame body, wherein the frame head comprises a sending address field and a receiving address field, wherein the sending address field is used for indicating address information of a device sending the feedback frame, and the receiving address field is used for indicating destination information of receiving the feedback frame; and the frame body comprises an acknowledgement/paging control field and N user data acknowledgement/paging information fields, wherein each of the user data acknowledgement/paging information fields corresponds to one user in uplink multi-user data transmission, and N represents the total number of the users. ### Claim 16 (depends on 15) The primary node according to claim 15, wherein each of the user data acknowledgement/paging information fields comprises a paging indication field used for indicating whether a user corresponding to said user data acknowledgement/paging information field is able to send the uplink data in a subsequent uplink multi-user radio frame; or, the acknowledgement/paging control field comprises a multi-user paging indication field used for indicating respectively whether each of the users is able to send the uplink data in a subsequent uplink multi-user radio frame. wherein a mode of the multi-user paging indication field indicating whether each of the users is able to send the uplink data in the subsequent uplink multi-user radio frame is: indicating that the number of the users who are allowed to send the uplink data in the subsequent uplink multi-user radio frame is M, and then the first M corresponding users in the N user data acknowledgement/paging information fields are allowed to send the uplink data in the subsequent uplink multi-user radio frame, wherein M is less than or equal to N. ### Claim 17 (depends on 16) The primary node according to claim 16, wherein the acknowledgement/paging control field further comprises a frame format control field and a number field of the user data acknowledgement/paging information field, wherein the frame format control field is used for indicating that the feedback frame is used for acknowledgement/paging of the uplink multi-user data, and the number field of the user data acknowledgement/paging information field is used for indicating the number of the user data acknowledgement/paging information fields, a value of the number field of the user data acknowledgement/paging information field is the number N of the users in the uplink multi-user data transmission; and the user data acknowledgement/paging information field further comprises a user identity field, a traffic stream identity field, acknowledgement information sequence control information and an acknowledgement information bitmap, wherein the user identity field is used for representing the user corresponding to the user data acknowledgement/paging information field, the traffic stream identity field is used for representing an identity of a traffic stream in which a data unit corresponding to a right and wrong indication in the acknowledgement information bitmap is located, the acknowledgement information sequence control information is used for representing a sequence number range of the data unit corresponding to the right and wrong indication in the acknowledgement information bitmap, and the acknowledgement information bitmap is a bit map and each bit corresponds to a right and wrong indication of one data unit in the traffic stream. ### Claim 18 (depends on 15) The primary node according to claim 15, wherein the frame head further comprises a frame control field used for indicating that a frame in which the frame control field is located is the feedback frame carrying the multiple pieces of user data acknowledgement/paging information. ### Claim 19 (depends on 15) The primary node according to claim 15, wherein the frame head further comprises a duration field used for determining a length of the uplink multi-user radio frame for the users who are indicated to be able to send the uplink data in the next uplink multi-user data transmission. ### Claim 20 (canceled) ### Claim 21 (depends on 1) A computer readable storage medium storing computer executable instructions for executing the method according to claim 1.