# US 12,113,740 B2 · Communication method and communications apparatus > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,113,740 B2 - Document ID: US12113740B2 - Status: Granted - Kind: B2 - Application number: 17/514,268 - Filed: 2021-10-29 - Published: 2022-02-17 - Granted: 2024-10-08 - Earliest claimed: 2019-04-30 - Assignees: Huawei Technologies Co., Ltd. - Applicants: Huawei Technologies Co., Ltd. - Inventors: Haicun Hang; Liuliu Ji; Hongzhe Shi; Xiaohan Wang; Xiaoyan Bi - Web page: https://patentgrep.com/patent/US12113740B2 ## CPC - H04L 5/0044: {Allocation of payload; Allocation of data channels, e.g. PDSCH or PUSCH} - H04L 5/0051: {of dedicated pilots, i.e. pilots destined for a single user or terminal} - H04L 1/189: {Transmission or retransmission of more than one copy of a message} - H04L 1/1896: {ARQ related signaling} - H04L 5/0023: {Time-frequency-space} - H04L 5/0091: {Signalling for the administration of the divided path, e.g. signalling of configuration information} - H04W 72/0446: Resources in time domain, e.g. slots or frames - H04W 72/0453: Resources in frequency domain, e.g. a carrier in FDMA - H04W 72/23: in the downlink direction of a wireless link, i.e. towards a terminal - H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M) - H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72) ## Abstract Example communication methods and communications apparatus are described. One example method include: receiving downlink control information (DCI), where the DCI indicates N demodulation reference signal (DMRS) ports. The N DMRS ports correspond to each of M physical downlink shared channel (PDSCH) transmission units, at least two of the M PDSCH transmission units correspond to different transmission configuration indicator (TCI)-states, N is an integer greater than or equal to 1, and M are integers greater than or equal to 2. M PDSCHs are received based on the DCI. ## Claims ### Claim 1 A communication method, comprising: receiving downlink control information (DCI), wherein the DCI indicates N demodulation reference signal (DMRS) ports, the N DMRS ports correspond to each of M physical downlink shared channel (PDSCH), the N DMRS ports used in at least two of M PDSCH transmission units correspond to different transmission configuration indicator (TCI)-states, N is an integer greater than or equal to 1, and M is an integer greater than or equal to 2, and wherein at least one PDSCH transmission unit among the M PDSCH transmission units is determined based on an interval between neighboring PDSCH transmission units, and the interval between the neighboring PDSCH transmission units comprises a symbol length between an ending position of a first PDSCH transmission unit and a starting position of a second PDSCH transmission unit in the neighboring PDSCH transmission units; and receiving M PDSCHs based on the DCI. ### Claim 2 (depends on 1) The communication method according to claim 1, wherein: the M PDSCHs comprise a first PDSCH; a PDSCH transmission unit configured to transmit the first PDSCH is a first PDSCH transmission unit; and the first PDSCH transmission unit is determined based on a starting position of the first PDSCH transmission unit and a length of the first PDSCH transmission unit. ### Claim 3 (depends on 2) The communication method according to claim 2, wherein: the M PDSCHs further comprise a second PDSCH; and a PDSCH transmission unit configured to transmit the second PDSCH is a second PDSCH transmission unit; and the second PDSCH transmission unit is determined based on the first PDSCH transmission unit and an interval between the first PDSCH transmission unit and the second PDSCH transmission unit. ### Claim 4 (depends on 1) The communication method according to claim 1, wherein: the interval between the neighboring PDSCH transmission units is carried in higher layer signaling; or when the higher layer signaling does not carry the interval between the neighboring PDSCH transmission units, the interval between the neighboring PDSCH transmission units is 0. ### Claim 5 A communications apparatus, comprising: at least one processor configured with processor-executable instructions to perform operations comprising: receiving downlink control information (DCI), wherein the DCI indicates N demodulation reference signal (DMRS) ports, the N DMRS ports correspond to each of M physical downlink shared channel (PDSCH), the N DMRS ports used in at least two of M PDSCH transmission units correspond to different transmission configuration indicator (TCI)-states, N is an integer greater than or equal to 1, and M is an integer greater than or equal to 2, and wherein at least one PDSCH transmission unit among the M PDSCH transmission units is determined based on an interval between neighboring PDSCH transmission units, and the interval between the neighboring PDSCH transmission units comprises a symbol length between an ending position of a first PDSCH transmission unit and a starting position of a second PDSCH transmission unit in the neighboring PDSCH transmission units; and receiving M PDSCHs based on the DCI. ### Claim 6 (depends on 5) The communications apparatus according to claim 5, wherein: the M PDSCHs comprise a first PDSCH; a PDSCH transmission unit configured to transmit the first PDSCH is a first PDSCH transmission unit; and the first PDSCH transmission unit is determined based on a starting position of the first PDSCH transmission unit and a length of the first PDSCH transmission unit. ### Claim 7 (depends on 6) The communications apparatus according to claim 6, wherein: the M PDSCHs further comprise a second PDSCH; a PDSCH transmission unit configured to transmit the second PDSCH is a second PDSCH transmission unit; and the second PDSCH transmission unit is determined based on the first PDSCH transmission unit and an interval between the first PDSCH transmission unit and the second PDSCH transmission unit. ### Claim 8 (depends on 5) The communications apparatus according to claim 5, wherein: the interval between the neighboring PDSCH transmission units is carried in higher layer signaling; or when the higher layer signaling does not carry the interval between the neighboring PDSCH transmission units, the interval between the neighboring PDSCH transmission units is 0. ### Claim 9 (depends on 5) The communications apparatus according to claim 5, wherein: the communications apparatus is any one of the following: a terminal device, a chip, or a chip system. ### Claim 10 A non-transitory computer-readable storage medium, comprising a computer program for execution by at least one processor to perform operations comprising: receiving downlink control information (DCI), wherein the DCI indicates N demodulation reference signal (DMRS) ports, the N DMRS ports correspond to each of M physical downlink shared channel (PDSCH), the N DMRS ports used in at least two of M PDSCH transmission units correspond to different transmission configuration indicator (TCI)-states, N is an integer greater than or equal to 1, and M is an integer greater than or equal to 2, and wherein at least one PDSCH transmission unit among the M PDSCH transmission units is determined based on an interval between neighboring PDSCH transmission units, and the interval between the neighboring PDSCH transmission units comprises a symbol length between an ending position of a first PDSCH transmission unit and a starting position of a second PDSCH transmission unit in the neighboring PDSCH transmission units; and receiving M PDSCHs based on the DCI. ### Claim 11 (depends on 10) The non-transitory computer-readable storage medium according to claim 10, wherein: the M PDSCHs comprise a first PDSCH; a PDSCH transmission unit configured to transmit the first PDSCH is a first PDSCH transmission unit; and the first PDSCH transmission unit is determined based on a starting position of the first PDSCH transmission unit and a length of the first PDSCH transmission unit. ### Claim 12 (depends on 11) The non-transitory computer-readable storage medium according to claim 11, wherein: the M PDSCHs further comprise a second PDSCH; a PDSCH transmission unit configured to transmit the second PDSCH is a second PDSCH transmission unit; and the second PDSCH transmission unit is determined based on the first PDSCH transmission unit and an interval between the first PDSCH transmission unit and the second PDSCH transmission unit. ### Claim 13 (depends on 10) The non-transitory computer-readable storage medium according to claim 10, wherein: the interval between the neighboring PDSCH transmission units is carried in higher layer signaling; or when the higher layer signaling does not carry the interval between the neighboring PDSCH transmission units, the interval between the neighboring PDSCH transmission units is 0. ### Claim 14 A communication method, comprising: generating downlink control information (DCI), wherein the DCI indicates N demodulation reference signal (DMRS) ports, the N DMRS ports correspond to each of M physical downlink shared channel (PDSCH), the N DMRS ports used in at least two of M PDSCH transmission units correspond to different transmission configuration indicator (TCI)-states, N is an integer greater than or equal to 1, and M is an integer greater than or equal to 2, and wherein at least one PDSCH transmission unit among the M PDSCH transmission units is determined based on an interval between neighboring PDSCH transmission units, and the interval between the neighboring PDSCH transmission units comprises a symbol length between an ending position of a first PDSCH transmission unit and a starting position of a second PDSCH transmission unit in the neighboring PDSCH transmission units; and sending the DCI. ### Claim 15 (depends on 14) The communication method according to claim 14, wherein: the M PDSCHs comprise a first PDSCH; a PDSCH transmission unit configured to transmit the first PDSCH is a first PDSCH transmission unit; and the first PDSCH transmission unit is determined based on a starting position of the first PDSCH transmission unit and a length of the first PDSCH transmission unit. ### Claim 16 (depends on 15) The communication method according to claim 15, wherein: the M PDSCHs further comprise a second PDSCH; and a PDSCH transmission unit configured to transmit the second PDSCH is a second PDSCH transmission unit; and the second PDSCH transmission unit is determined based on the first PDSCH transmission unit and an interval between the first PDSCH transmission unit and the second PDSCH transmission unit. ### Claim 17 (depends on 14) The communication method according to claim 14, wherein: the interval between the neighboring PDSCH transmission units is carried in higher layer signaling; or when the higher layer signaling does not carry the interval between the neighboring PDSCH transmission units, the interval between the neighboring PDSCH transmission units is 0. ### Claim 18 A communications apparatus, comprising: at least one processor configured with processor-executable instructions to perform operations comprising: generating downlink control information (DCI), wherein the DCI indicates N demodulation reference signal (DMRS) ports, the N DMRS ports correspond to each of M physical downlink shared channel (PDSCH), the N DMRS ports used in at least two of M PDSCH transmission units correspond to different transmission configuration indicator (TCI)-states, N is an integer greater than or equal to 1, and M is an integer greater than or equal to 2, and wherein at least one PDSCH transmission unit among the M PDSCH transmission units is determined based on an interval between neighboring PDSCH transmission units, and the interval between the neighboring PDSCH transmission units comprises a symbol length between an ending position of a first PDSCH transmission unit and a starting position of a second PDSCH transmission unit in the neighboring PDSCH transmission units; and sending the DCI. ### Claim 19 (depends on 18) The communications apparatus according to claim 18, wherein: the M PDSCHs comprise a first PDSCH; a PDSCH transmission unit configured to transmit the first PDSCH is a first PDSCH transmission unit; and the first PDSCH transmission unit is determined based on a starting position of the first PDSCH transmission unit and a length of the first PDSCH transmission unit. ### Claim 20 (depends on 18) The communications apparatus according to claim 18, wherein: the M PDSCHs further comprise a second PDSCH; and a PDSCH transmission unit configured to transmit the second PDSCH is a second PDSCH transmission unit; and the second PDSCH transmission unit is determined based on the first PDSCH transmission unit and an interval between the first PDSCH transmission unit and the second PDSCH transmission unit. ### Claim 21 (depends on 18) The communications apparatus according to claim 18, wherein: the interval between the neighboring PDSCH transmission units is carried in higher layer signaling; or when the higher layer signaling does not carry the interval between the neighboring PDSCH transmission units, the interval between the neighboring PDSCH transmission units is 0.