# US 2019/0173635 A1 · Reception timing configuration method and communications device > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2019/0173635 A1 - Document ID: US20190173635A1 - Status: Published application - Kind: A1 - Application number: 16/271,297 - Filed: 2019-02-08 - Published: 2019-06-06 - Earliest claimed: 2016-08-09 - Assignees: Huawei Technologies Co., Ltd. - Applicants: Huawei Technologies Co., Ltd. - Inventors: Ting WANG; Yuanjie LI; Na DENG; Shengyue DOU - Web page: https://patentgrep.com/patent/US20190173635A1 ## CPC - H04L 5/0035: {Resource allocation in a cooperative multipoint environment} - H04B 7/02: Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas (RAKE receivers H04B1/7115) - H04L 5/0053: {Allocation of signalling, i.e. of overhead other than pilot signals} - H04W 56/001: {Synchronization between nodes} - H04W 72/0446: Resources in time domain, e.g. slots or frames - H04W 72/23: in the downlink direction of a wireless link, i.e. towards a terminal - H04W 56/00: Synchronisation arrangements - H04W 72/04: Wireless resource allocation - H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M) - H04B: TRANSMISSION - H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72) ## Abstract A reception timing configuration method and a communications device are provided. The method includes: configuring, by a first communications device for a second communications device, a reception timing parameter corresponding to transmission, where the reception timing parameter includes at least two timing points respectively corresponding to at least two transmission points, and the at least two transmission points are configured to transmit downlink data to the terminal device cooperatively; and sending, by the first communications device, indication information to the second communications device, where the indication information is used to indicate the reception timing parameter. According to the method, there may be a plurality of corresponding reception timings when different data is sent by using a same frequency. ## Claims ### Claim 1 An apparatus, comprising: a processor, configured to configure, for another communications device, a reception timing parameter corresponding to transmission, wherein the reception timing parameter comprises at least two timing points respectively corresponding to at least two transmission points, and the at least two transmission points are configured to transmit downlink data to the other communications device cooperatively; and a transmitter, configured to send indication information to the other communications device, wherein the indication information is used to indicate the reception timing parameter. ### Claim 2 (depends on 1) The apparatus according to claim 1, wherein the apparatus further comprises a receiver and wherein: the receiver is configured to receive a capability parameter from the other communications device, wherein the capability parameter is used to indicate that the other communications device supports a plurality of reception timings; and the processor is configured to configure, for the other communications device based on the capability parameter, the reception timing parameter corresponding to transmission. ### Claim 3 (depends on 1) The apparatus according to claim 1, wherein the transmitter is configured to: send a plurality of groups of timing configuration identifiers and reception timing parameters using higher layer signaling; and send, using physical layer signaling, indication information used to indicate a timing configuration identifier corresponding to transmission. ### Claim 4 (depends on 3) The apparatus according to claim 3, wherein the transmitter is configured to: send the indication information using downlink control information DCI, wherein the indication information is used to indicate the corresponding timing configuration identifier and one or more of a transmitted codeword, an antenna port, and a quantity of transmission layers of at least one of the at least two transmission points. ### Claim 5 (depends on 1) The apparatus according to claim 1, wherein the transmitter is configured to send the indication information using higher layer signaling or physical layer signaling. ### Claim 6 (depends on 1) The apparatus according to claim 1, wherein the indication information is used to indicate identifiers of the at least two transmission points and the corresponding reception timing parameter; or the indication information is used to indicate the corresponding reception timing parameter and one or more of a transmitted codeword, an antenna port, and a quantity of transmission layers of at least one of the at least two transmission points. ### Claim 7 An apparatus, comprising: a receiver, configured to receive indication information from a first communications device, wherein the indication information is used to indicate a reception timing parameter corresponding to transmission, the timing parameter comprises at least two timing points respectively corresponding to at least two transmission points, and the at least two transmission points are configured to transmit downlink data to the apparatus or a terminal device the apparatus is used for cooperatively; and a processor, configured to determine the reception timing parameter based on the indication information. ### Claim 8 (depends on 7) The apparatus according to claim 7, wherein the receiver is further configured to respectively receive, at the at least two timing points, the downlink data transmitted by the at least two transmission points in the coordinated manner. ### Claim 9 (depends on 7) The apparatus according to claim 7, wherein the apparatus further comprises a transmitter, configured to send a capability parameter to the first communications device, wherein the capability parameter is used to indicate that the second communications device supports a plurality of reception timings. ### Claim 10 (depends on 7) The apparatus according to claim 7, wherein the receiver is configured to: receive, using higher layer signaling, a plurality of groups of timing configuration identifiers and reception timing parameters that are from the first communications device; and receive, using physical layer signaling, indication information that is from the first communications device and that is used to indicate a timing configuration identifier corresponding to transmission; and the processor is configured to: determine, based on the indication information, the timing configuration identifier corresponding to transmission; and determine, in the plurality of groups of timing configuration identifiers and reception timing parameters, a reception timing parameter corresponding to the timing configuration identifier corresponding to transmission. ### Claim 11 (depends on 10) The apparatus according to claim 10, wherein the processor is configured to determine, according to a table that is agreed on in a protocol or preconfigured and that is of a correspondence between indication information and a timing configuration identifier, a timing configuration identifier corresponding to the indication information as the timing configuration identifier corresponding to transmission. ### Claim 12 (depends on 7) The apparatus according to claim 7, wherein the receiver is configured to receive, using physical layer signaling, the indication information from the first communications device; and the processor is configured to determine, according to a table that is agreed on in a protocol or preconfigured and that is of a correspondence between indication information and a timing value, timing values corresponding to the indication information as the at least two timing points. ### Claim 13 (depends on 11) The apparatus according to claim 11, wherein the correspondence table further comprises a correspondence between indication information and one or any combination of a transmitted codeword, an antenna port, and a quantity of transmission layers of at least one of the at least two transmission points. ### Claim 14 (depends on 7) The apparatus according to claim 7, wherein the receiver is configured to receive identifiers of the at least two transmission points and the corresponding reception timing parameter by using higher layer signaling; and the processor is configured to determine a corresponding timing value based on an identifier of a transmission point transmitting data. ### Claim 15 A non-transitory storage medium, configured to store instructions, which, when executed by a processor, cause the processor to perform the steps of: configuring, for an another communications device, a reception timing parameter corresponding to transmission, wherein the reception timing parameter comprises at least two timing points respectively corresponding to at least two transmission points, and the at least two transmission points are configured to transmit downlink data to the other communications device cooperatively; and sending indication information to the other communications device, wherein the indication information is used to indicate the reception timing parameter. ### Claim 16 (depends on 15) The storage medium according to claim 15, further configured to store instructions, which, when executed by a processor, cause the processor to perform the steps of receiving a capability parameter from the other communications device, wherein the capability parameter is used to indicate that the other communications device supports a plurality of reception timings; and configuring, for the other communications device based on the capability parameter, the reception timing parameter corresponding to transmission. ### Claim 17 (depends on 15) The storage medium according to claim 15, further configured to store instructions, which, when executed by a processor, cause the processor to perform the steps of sending a plurality of groups of timing configuration identifiers and reception timing parameters by using higher layer signaling; and send, by using physical layer signaling, indication information used to indicate a timing configuration identifier corresponding to transmission. ### Claim 18 A non-transitory storage medium, configured to store instructions, which, when executed by a processor, cause the processor to perform the steps of: receiving indication information from a first communications device, wherein the indication information is used to indicate a reception timing parameter corresponding to transmission, the timing parameter comprises at least two timing points respectively corresponding to at least two transmission points, and the at least two transmission points are configured to transmit downlink data to a terminal device the storage medium is used for cooperatively; and determining the reception timing parameter based on the indication information. ### Claim 19 (depends on 18) The storage medium according to claim 18, further configured to store instructions, which, when executed by a processor, cause the processor to perform the steps of respectively receiving, at the at least two timing points, the downlink data transmitted by the at least two transmission points in the coordinated manner. ### Claim 20 (depends on 18) The storage medium according to claim 18, further configured to store instructions, which, when executed by a processor, cause the processor to perform the steps of sending a capability parameter to the first communications device, wherein the capability parameter is used to indicate that the second communications device supports a plurality of reception timings.