# US 12,192,141 B2 · Resource determining method and apparatus > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,192,141 B2 - Document ID: US12192141B2 - Status: Granted - Kind: B2 - Application number: 17/560,681 - Filed: 2021-12-23 - Published: 2022-04-14 - Granted: 2025-01-07 - Earliest claimed: 2019-06-25 - Assignees: Huawei Technologies Co., Ltd. - Applicants: Huawei Technologies Co., Ltd. - Inventors: Xianda Liu; Kunpeng Liu - Web page: https://patentgrep.com/patent/US12192141B2 ## CPC - H04L 5/0051: {of dedicated pilots, i.e. pilots destined for a single user or terminal} - H04W 72/0453: Resources in frequency domain, e.g. a carrier in FDMA - H04L 5/0053: {Allocation of signalling, i.e. of overhead other than pilot signals} - 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 The present disclosure relates to resource determining methods and apparatus. One example method includes receiving, by a terminal, N pieces of channel measurement reference signal configuration information, where each of the N pieces of channel measurement reference signal configuration information is used to indicate a time domain resource occupied by a channel measurement reference signal on one carrier, serving cell, or bandwidth part, and N is a positive integer, and determining, by the terminal based on the N pieces of channel measurement reference signal configuration information, an orthogonal frequency division multiplexing (OFDM) symbol occupied by a demodulation reference signal (DMRS) in a first time unit. ## Claims ### Claim 1 A resource determining method, comprising: receiving, by a terminal from one or more of transmission reception points (TRPs) in a coordinated multipoint transmission/reception (COMP) scenario, N pieces of channel measurement reference signal configuration information, wherein each of the N pieces of channel measurement reference signal configuration information is used to indicate a resource occupied by a channel measurement reference signal on one carrier, serving cell, or bandwidth part, the resource occupied by the channel measurement reference signal comprises a time domain resource, and N is a positive integer; and determining, by the terminal based on the N pieces of channel measurement reference signal configuration information, an orthogonal frequency division multiplexing (OFDM) symbol occupied by a demodulation reference signal (DMRS) in a first time unit. ### Claim 2 (depends on 1) The resource determining method according to claim 1, wherein the time domain resource includes an OFDM symbol, and an OFDM symbol occupied by the DMRS does not overlap an OFDM symbol occupied by channel measurement reference signals indicated by the N pieces of channel measurement reference signal configuration information. ### Claim 3 (depends on 1) The resource determining method according to claim 1, wherein if an OFDM symbol occupied by a channel measurement reference signal indicated by at least one of the N pieces of channel measurement reference signal configuration information comprises a first OFDM symbol, the OFDM symbol occupied by the DMRS does not comprise the first OFDM symbol, or the OFDM symbol occupied by the DMRS comprises a second OFDM symbol. ### Claim 4 (depends on 3) The resource determining method according to claim 3, wherein the first OFDM symbol and the second OFDM symbol are OFDM symbols other than a start OFDM symbol of a physical downlink shared channel (PDSCH) corresponding to the DMRS. ### Claim 5 (depends on 4) The resource determining method according to claim 4, wherein the first time unit is a slot in which the PDSCH corresponding to the DMRS is located, the first OFDM symbol is the twelfth OFDM symbol in the slot, and the second OFDM symbol is the thirteenth OFDM symbol in the slot. ### Claim 6 (depends on 1) The resource determining method according to claim 1, wherein if OFDM symbols occupied by the channel measurement reference signals indicated by the N pieces of channel measurement reference signal configuration information do not comprise a first OFDM symbol, the OFDM symbol occupied by the DMRS comprises the first OFDM symbol, and the OFDM symbol occupied by the DMRS does not comprise a second OFDM symbol. ### Claim 7 (depends on 1) The resource determining method according to claim 1, wherein at least one of: one or more pieces of channel measurement reference signal configuration information in the N pieces of channel measurement reference signal configuration information are associated with a control resource set, the control resource set is used to carry downlink control information (DCI), and the DCI is used to schedule a physical downlink shared channel (PDSCH) corresponding to the DMRS; or one or more pieces of channel measurement reference signal configuration information in the N pieces of channel measurement reference signal configuration information are associated with a code division multiplexing (CDM) group occupied by the DMRS. ### Claim 8 A resource determining method, comprising: obtaining, by a network device, N pieces of channel measurement reference signal configuration information for one or more of transmission reception points (TRPs) in a coordinated multipoint transmission/reception (COMP) scenario, wherein each of the N pieces of channel measurement reference signal configuration information is used to indicate a resource occupied by a channel measurement reference signal on one carrier, serving cell, or bandwidth part, the resource occupied by the channel measurement reference signal comprises a time domain resource, and N is a positive integer; and determining, by the network device based on the N pieces of channel measurement reference signal configuration information, an orthogonal frequency division multiplexing (OFDM) symbol occupied by a demodulation reference signal (DMRS) in a first time unit. ### Claim 9 (depends on 8) The resource determining method according to claim 8, wherein the time domain resource includes an OFDM symbol, and an OFDM symbol occupied by the DMRS does not overlap an OFDM symbol occupied by channel measurement reference signals indicated by the N pieces of channel measurement reference signal configuration information. ### Claim 10 (depends on 8) The resource determining method according to claim 8, wherein if an OFDM symbol occupied by a channel measurement reference signal and indicated by at least one of the N pieces of channel measurement reference signal configuration information comprises a first OFDM symbol, the OFDM symbol occupied by the DMRS does not comprise the first OFDM symbol, or the OFDM symbol occupied by the DMRS comprises a second OFDM symbol. ### Claim 11 (depends on 10) The resource determining method according to claim 10, wherein the first OFDM symbol and the second OFDM symbol are OFDM symbols other than a start OFDM symbol of a physical downlink shared channel (PDSCH) corresponding to the DMRS. ### Claim 12 (depends on 11) The resource determining method according to claim 11, wherein the first time unit is a slot in which the PDSCH corresponding to the DMRS is located, the first OFDM symbol is the twelfth OFDM symbol in the slot, and the second OFDM symbol is the thirteenth OFDM symbol in the slot. ### Claim 13 (depends on 8) The resource determining method according to claim 8, wherein if OFDM symbols occupied by the channel measurement reference signals indicated by the N pieces of channel measurement reference signal configuration information do not comprise a first OFDM symbol, the OFDM symbol occupied by the DMRS comprises the first OFDM symbol, and the OFDM symbol occupied by the DMRS does not comprise a second OFDM symbol. ### Claim 14 A communication apparatus, comprising: a transceiver, the transceiver configured to receive N pieces of channel measurement reference signal configuration information from one or more of transmission reception points (TRPs) in a coordinated multipoint transmission/reception (COMP) scenario, wherein each of the N pieces of channel measurement reference signal configuration information is used to indicate a resource occupied by a channel measurement reference signal on one carrier, serving cell, or bandwidth part, the resource occupied by the channel measurement reference signal comprises a time domain resource, and N is a positive integer; at least one processor; and one or more memories coupled to the at least one processor and storing programming instructions for execution by the at least one processor to determine, based on the N pieces of channel measurement reference signal configuration information, an orthogonal frequency division multiplexing (OFDM) symbol occupied by a demodulation reference signal (DMRS) in a first time unit. ### Claim 15 (depends on 14) The communication apparatus according to claim 14, wherein the time domain resource includes an OFDM symbol, and an OFDM symbol occupied by the DMRS does not overlap an OFDM symbol occupied by channel measurement reference signals indicated by the N pieces of channel measurement reference signal configuration information. ### Claim 16 (depends on 14) The communication apparatus according to claim 14, wherein if an OFDM symbol occupied by a channel measurement reference signal indicated by at least one of the N pieces of channel measurement reference signal configuration information comprises a first OFDM symbol, the OFDM symbol occupied by the DMRS does not comprise the first OFDM symbol, or the OFDM symbol occupied by the DMRS comprises a second OFDM symbol. ### Claim 17 (depends on 16) The communication apparatus according to claim 16, wherein the first OFDM symbol and the second OFDM symbol are OFDM symbols other than a start OFDM symbol of a physical downlink shared channel (PDSCH) corresponding to the DMRS. ### Claim 18 (depends on 17) The communication apparatus according to claim 17, wherein the first time unit is a slot in which the PDSCH corresponding to the DMRS is located, the first OFDM symbol is the twelfth OFDM symbol in the slot, and the second OFDM symbol is the thirteenth OFDM symbol in the slot. ### Claim 19 (depends on 14) The communication apparatus according to claim 14, wherein if OFDM symbols occupied by the channel measurement reference signals indicated by the N pieces of channel measurement reference signal configuration information do not comprise a first OFDM symbol, the OFDM symbol occupied by the DMRS comprises the first OFDM symbol, and the OFDM symbol occupied by the DMRS does not comprise a second OFDM symbol. ### Claim 20 (depends on 14) The communication apparatus according to claim 14, wherein at least one of: one or more pieces of channel measurement reference signal configuration information in the N pieces of channel measurement reference signal configuration information are associated with a control resource set, the control resource set is used to carry downlink control information (DCI), and the DCI is used to schedule a physical downlink shared channel (PDSCH) corresponding to the DMRS; or one or more pieces of channel measurement reference signal configuration information in the N pieces of channel measurement reference signal configuration information are associated with a code division multiplexing (CDM) group occupied by the DMRS.