# US 12,225,544 B2 · Information determination method and apparatus, device, and storage medium > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,225,544 B2 - Document ID: US12225544B2 - Status: Granted - Kind: B2 - Application number: 17/832,398 - Filed: 2022-06-03 - Published: 2022-09-15 - Granted: 2025-02-11 - Earliest claimed: 2020-02-13 - Assignees: Guangdong Oppo Mobile Telecommunications Corp., Ltd. - Applicants: Guangdong Oppo Mobile Telecommunications Corp., Ltd. - Inventors: Bin Liang; Jing Xu - Web page: https://patentgrep.com/patent/US12225544B2 ## CPC - H04L 5/0051: {of dedicated pilots, i.e. pilots destined for a single user or terminal} - H04W 72/23: in the downlink direction of a wireless link, i.e. towards a terminal - H04L 5/0048: {Allocation of pilot signals, i.e. of signals known to the receiver (allocation of control signalling H04L5/0053; use of control signalling H04L5/0091)} - H04L 5/0053: {Allocation of signalling, i.e. of overhead other than pilot signals} - H04L 5/0094: {Indication of how sub-channels of the path are allocated} - H04L 5/0023: {Time-frequency-space} - 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 provides an information determination method and apparatus, a device, and a storage medium, which relate to the field of mobile communications. The method includes: determining, when no antenna port field exists in a format of first Downlink Control Information (DCI), a first Demodulation Reference Signal (DMRS) port used for transmission scheduled by the first DCI, and/or a first antenna port used for transmission scheduled by the first DCI. ## Claims ### Claim 1 An information determination method, applied in a terminal device, the method comprising: determining, when no antenna port field exists in a format of first Downlink Control Information (DCI), a first Demodulation Reference Signal (DMRS) port used for transmission scheduled by the first DCI, and/or a first antenna port used for transmission scheduled by the first DCI, wherein the first DMRS port is determined based on an identification of the first antenna port and a quantity of orthogonal DMRS ports supported by the terminal device, wherein the first DMRS port is determined based on a remainder between the identification of the first antenna port and the quantity of orthogonal DMRS ports supported by the terminal device. ### Claim 2 (depends on 1) The method according to claim 1, wherein the first DMRS port is determined based on a correspondence and the first antenna port, wherein the correspondence comprises a correspondence between antenna ports and DMRS ports. ### Claim 3 (depends on 1) The method according to claim 1, wherein the first antenna port has an identification specified by a protocol. ### Claim 4 (depends on 1) The method according to claim 1, further comprising: receiving the first DCI, wherein a quantity of bits of the antenna port field included in the first DCI is 0; and determining, when the quantity of bits of the antenna port field is 0, that no antenna port field exists in the format of the first DCI. ### Claim 5 A terminal, comprising: a processor; a transceiver connected to the processor; a memory for storing executable instructions of the processor, wherein the processor is configured to load and execute the executable instructions to implement operations comprising: determining, when no antenna port field exists in a format of first Downlink Control Information (DCI), a first Demodulation Reference Signal (DMRS) port used for transmission scheduled by the first DCI, and/or a first antenna port used for transmission scheduled by the first DCI, wherein the first DMRS port is determined based on an identification of the first antenna port and a quantity of orthogonal DMRS ports supported by the terminal, wherein the first DMRS port is determined based on a remainder between the identification of the first antenna port and the quantity of orthogonal DMRS ports supported by the terminal. ### Claim 6 (depends on 5) The terminal according to claim 5, wherein the first DMRS port is determined based on a correspondence and the first antenna port, wherein the correspondence comprises a correspondence between antenna ports and DMRS ports. ### Claim 7 (depends on 5) The terminal according to claim 5, wherein the first antenna port has an identification specified by a protocol. ### Claim 8 (depends on 5) The terminal according to claim 5, wherein the operations further comprise: receiving the first DCI, wherein a quantity of bits of the antenna port field included in the first DCI is 0; and determining, when the quantity of bits of the antenna port field is 0, that no antenna port field exists in the format of the first DCI. ### Claim 9 A network device, comprising: a processor; a transceiver connected to the processor; a memory for storing executable instructions of the processor, wherein the processor is configured to load and execute the executable instructions to implement operations comprising: transmitting first Downlink Control Information (DCI) to a terminal device, wherein a quantity of bits of an antenna port field included in the first DCI is 0, wherein when the quantity of bits of the antenna port field is 0, it is determined that no antenna port field exists in a format of the first DCI, wherein the first DCI is transmitted to control the terminal device to determine, when no antenna port field exists in the format of the first DCI, a first Demodulation Reference Signal (DMRS) port used for transmission scheduled by the first DCI, and/or a first antenna port used for transmission scheduled by the first DCI, wherein the first DMRS port is determined based on an identification of the first antenna port and a quantity of orthogonal DMRS ports supported by the terminal device, wherein the first DMRS port is determined based on a remainder between the identification of the first antenna port and the quantity of orthogonal DMRS ports supported by the terminal device. ### Claim 10 (depends on 9) The network device according to claim 9, wherein the first DMRS port is determined based on a correspondence and the first antenna port, wherein the correspondence comprises a correspondence between antenna ports and DMRS ports. ### Claim 11 (depends on 9) The network device according to claim 9, wherein the first antenna port has an identification specified by a protocol.