# US 2019/0174520 A1 · Service Data Transmission Method, Network Device, and Terminal Device > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2019/0174520 A1 - Document ID: US20190174520A1 - Status: Published application - Kind: A1 - Application number: 16/271,977 - Filed: 2019-02-11 - Published: 2019-06-06 - Earliest claimed: 2016-08-12 - Assignees: Huawei Technologies Co., Ltd. - Applicants: Huawei Technologies Co., Ltd. - Inventors: Lingli PANG; Xiaoxiao ZHENG; Min HUANG - Web page: https://patentgrep.com/patent/US20190174520A1 ## CPC - H04W 72/1273: of downlink data flows - H04L 65/61: for supporting one-way streaming services, e.g. Internet radio - H04L 67/568: Storing data temporarily at an intermediate stage, e.g. caching - H04W 4/00: Services specially adapted for wireless communication networks; Facilities therefor - H04W 72/12: Wireless traffic scheduling - H04L 47/2416: Real-time traffic - H04L 47/30: in combination with information about buffer occupancy at either end or at transit nodes - H04L 47/80: Actions related to the user profile or the type of traffic - 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 The present disclosure relates to service data transmission methods, network devices, and terminal devices. One example method includes obtaining, by a network device, characteristic information of service data, determining, by the network device based on the characteristic information, scheduling information for transmitting the service data, and transmitting, by the network device, the service data to a terminal device based on the scheduling information. ## Claims ### Claim 1 A service data transmission method, comprising: determining, by a terminal device, characteristic information of service data; and sending, by the terminal device, the characteristic information to a network device, wherein the characteristic information is used by the network device to determine scheduling information for transmitting the service data, and wherein the network device transmits the service data to the terminal device based on the scheduling information. ### Claim 2 (depends on 1) The method according to claim 1, wherein the service data is video service data, and wherein the characteristic information comprises at least one of cache capability information, data frame transmission interval information, service data request period information, or mobility information. ### Claim 3 (depends on 1) The method according to claim 1, wherein the method further comprises: sending, by the terminal device, a data volume of the service data to the network device, wherein the data volume is used by the network device to determine the scheduling information. ### Claim 4 (depends on 3) The method according to claim 3, wherein the sending the data volume to the network device comprises at least one of: sending, by the terminal device, the data volume of the service data when a data volume in a cache changes; or sending, by the terminal device, the data volume of the service data when a scheduling grant value in previous scheduling information is less than a data volume in a cache. ### Claim 5 (depends on 1) The method according to claim 1, wherein the service data is video service data; and wherein the method further comprises: sending, by the terminal device, refresh rate information, code compression rate information, and video resolution information of the video service data to the network device, wherein the refresh rate information, the code compression rate information, and the video resolution information of the video service data are used by the network device to determine a data volume of the video service data, and wherein the data volume is used by the network device to determine the scheduling information. ### Claim 6 (depends on 1) The method according to claim 1, wherein the service data is video service data; and wherein the method further comprises: sending, by the terminal device, bit rate information and play duration information of the video service data to the network device, wherein the bit rate information and the play duration information of the video service data are used to determine a data volume of the video service data, and wherein the data volume is used by the network device to determine the scheduling information. ### Claim 7 A network device for service data transmission, comprising: a receiver, the receiver configured to obtain characteristic information of service data; at least one processor, the at least one processor configured to determine, based on the characteristic information, scheduling information for transmitting the service data; and a transmitter, the transmitter configured to transmit the service data to a terminal device based on the scheduling information. ### Claim 8 (depends on 7) The network device according to claim 7, wherein the service data is video service data, and wherein the characteristic information comprises at least one of cache capability information, data frame transmission interval information, service data request period information, or mobility information. ### Claim 9 (depends on 7) The network device according to claim 7, wherein the receiver is configured to receive the characteristic information from the terminal device. ### Claim 10 (depends on 7) The network device according to claim 7, wherein the receiver is further configured to obtain a data volume of the service data; and wherein the at least one processor is configured to determine the scheduling information based on the characteristic information and the data volume. ### Claim 11 (depends on 10) The network device according to claim 10, wherein the service data is video service data; and wherein the receiver is further configured to obtain refresh rate information, code compression rate information, and video resolution information; and wherein the at least one processor is further configured to determine a data volume of the video service data based on the refresh rate information, the code compression rate information, and the video resolution information. ### Claim 12 (depends on 10) The network device according to claim 10, wherein the service data is video service data; and wherein the receiver is further configured to obtain bit rate information and play duration information of the video service data; and wherein the at least one processor is further configured to determine a data volume of the video service data based on the bit rate information and the play duration information of the video service data. ### Claim 13 (depends on 10) The network device according to claim 10, wherein the receiver is configured to at least one of: receive the data volume that is of the service data from the terminal device when a data volume in a cache changes; or receive the data volume that is of the service data from the terminal device when a scheduling grant value in previous scheduling information is less than a data volume in a cache. ### Claim 14 A terminal device for service data transmission, comprising: at least one of processor, the at least one of processor configured to determine characteristic information of service data; and a transmitter, the transmitter configured to send the characteristic information to a network device for determining scheduling information for transmitting the service data, and transmitting the service data to the terminal device based on the scheduling information. ### Claim 15 (depends on 14) The terminal device according to claim 14, wherein the service data is video service data, and wherein the characteristic information comprises at least one of cache capability information, data frame transmission interval information, service data request period information, or mobility information. ### Claim 16 (depends on 14) The terminal device according to claim 14, wherein the transmitter is further configured to send a data volume of the service data to the network device determining the scheduling information. ### Claim 17 (depends on 16) The terminal device according to claim 16, wherein the transmitter is configured to at least one of: send the data volume of the service data when a data volume in a cache changes; or send the data volume of the service data when a scheduling grant value in previous scheduling information is less than a data volume in a cache. ### Claim 18 (depends on 14) The terminal device according to claim 14, wherein the service data is video service data; and wherein the transmitter is further configured to send refresh rate information, code compression rate information, and video resolution information of the video service data to the network device, wherein the refresh rate information, the code compression rate information, and the video resolution information of the video service data are used by the network device to determine a data volume of the video service data, and wherein the data volume is used by the network device to determine the scheduling information. ### Claim 19 (depends on 14) The terminal device according to claim 14, wherein the service data is video service data; and wherein the transmitter is further configured to send bit rate information and play duration information of the video service data to the network device, wherein the bit rate information and the play duration information of the video service data are used to determine a data volume of the video service data, and wherein the data volume is used by the network device to determine the scheduling information. ### Claim 20 (depends on 14) The terminal device according to claim 14, wherein the scheduling information comprises at least one of resource configuration information, scheduling priority information, or multi-flow or multi-access configuration information.