# US 12,192,999 B2 · Information transmission 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 12,192,999 B2 - Document ID: US12192999B2 - Status: Granted - Kind: B2 - Application number: 17/244,715 - Filed: 2021-04-29 - Published: 2021-08-12 - Granted: 2025-01-07 - Earliest claimed: 2018-11-02 - Assignees: Vivo Mobile Communication Co., Ltd. - Applicants: Vivo Mobile Communication Co., Ltd. - Inventors: Siqi Liu; Zichao Ji; Kai Wu; Yu Ding - Web page: https://patentgrep.com/patent/US12192999B2 ## CPC - H04W 72/20: Control channels or signalling for resource management - 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 27/0006: {Assessment of spectral gaps suitable for allocating digitally modulated signals, e.g. for carrier allocation in cognitive radio (for spectrum sharing between different networks H04W16/14)} - H04W 74/0833: Random access procedures, e.g. with 4-step access - H04W 74/0836: with 2-step access - H04W 74/0838: using contention-free random access [CFRA] - 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 This disclosure discloses an information transmission method and a communications device. The method includes: obtaining a reference object group containing at least two reference objects, where the reference objects contained in the reference object group are quasi co-located; and performing information transmission based on the reference object group. ## Claims ### Claim 1 An information transmission method, performed by a receive end being a terminal, comprising: receiving spatial information of at least two reference objects from a network device, wherein the spatial information comprises spatial grouping factor; determining that the reference objects having the same modulo result with respect to the spatial grouping factor are quasi co-located; and performing information transmission based on the reference objects which are quasi co-located. ### Claim 2 (depends on 1) The information transmission method according to claim 1, wherein the spatial information further comprises spatial index information, and the reference objects are indicated by reference index information and/or time domain position information. ### Claim 3 (depends on 1) The information transmission method according to claim 1, wherein the reference objects comprise an SSB, the SSB is indicated by an SSB index, SSB indexes corresponding to a same spatial index are quasi co-located, wherein the spatial index=SSB index mod M, M is a value range of the spatial grouping factor, and a range of M is {1, 2, 4, 8}. ### Claim 4 (depends on 1) The information transmission method according to claim 1, wherein the step of performing information transmission based on the reference objects which are quasi co-located comprises: determining an available random access resource based on a first correspondence between the reference objects and random access resources; and performing a random access procedure on the available random access resource; or the step of performing information transmission based on the reference objects which are quasi co-located further comprises: determining a target monitoring occasion based on information about a second correspondence between the reference objects and monitoring occasions; and monitoring downlink information within the target monitoring occasion; or the step of performing information transmission based on the reference objects which are quasi co-located further comprises: performing rate matching or puncturing on target transmission information based on the reference objects and transmitting the rate-matched or punctured target transmission information, wherein the target transmission information is different from the reference objects contained in the reference objects. ### Claim 5 (depends on 4) The information transmission method according to claim 4, wherein the first correspondence comprises at least one of the following: information about a quantity of random access resources corresponding to the reference objects; information about preambles corresponding to the reference objects in the random access resources, wherein the information about preambles is used to indicate at least one of a preamble for contention-based random access, a preamble for contention-free random access, a preamble for a system information (SI) request, a preamble for beam failure recovery BFR, or a preamble for a specified group; power parameters of the random access resources; or a measurement threshold for the reference objects. ### Claim 6 (depends on 4) The information transmission method according to claim 4, wherein the second correspondence comprises: information about a quantity of monitoring occasions corresponding to the reference objects. ### Claim 7 (depends on 4) The information transmission method according to claim 4, wherein the step of performing rate matching or puncturing on target transmission information based on the reference objects comprises: when a resource for at least one reference object in the reference objects and a resource for the target transmission information at least partially overlap, performing rate matching or puncturing on the target transmission information based on one of the following preset modes: wherein the preset modes comprise: transmitting a reference object in the reference objects on an overlapping resource; or transmitting the target transmission information on the overlapping resource. ### Claim 8 (depends on 1) The information transmission method according to claim 1, wherein the reference objects having the same modulo result with respect to the spatial grouping factor are quasi co-located comprises: the reference objects having the same modulo result with respect to the spatial grouping factor are quasi co-located with respect to QCL-TypeA, and QCL-TypeD. ### Claim 9 A communications device, performed by a receive end being a terminal, comprising a processor, a memory, and a computer program stored in the memory and running on the processor, wherein the processor executes the computer program to: receive spatial information of at least two reference objects from a network device, wherein the spatial information comprises spatial grouping factor; determine that the reference objects having the same modulo result with respect to the spatial grouping factor are quasi co-located; and perform information transmission based on the reference objects which are quasi co-located. ### Claim 10 (depends on 9) The communications device according to claim 9, wherein the spatial information further comprises spatial index information, and the reference objects are indicated by reference index information and/or time domain position information. ### Claim 11 (depends on 9) The communications device according to claim 9, wherein the reference objects comprise an SSB, the SSB is indicated by an SSB index, SSB indexes corresponding to a same spatial index are quasi co-located, wherein the spatial index=SSB index mod M, M is a value range of the spatial grouping factor, and a range of M is {1, 2, 4, 8}. ### Claim 12 (depends on 9) The communications device according to claim 9, wherein the processor executes the computer program to: determine an available random access resource based on a first correspondence between the reference objects and random access resources; and perform a random access procedure on the available random access resource; or determine a target monitoring occasion based on information about a second correspondence between the reference objects and monitoring occasions; and monitor downlink information within the target monitoring occasion; or perform rate matching or puncturing on target transmission information based on the reference objects and transmit the rate-matched or punctured target transmission information, wherein the target transmission information is different from the reference objects contained in the reference objects. ### Claim 13 (depends on 12) The communications device according to claim 12, wherein the first correspondence comprises at least one of the following: information about a quantity of random access resources corresponding to the reference objects; information about preambles corresponding to the reference objects in the random access resources, wherein the information about preambles is used to indicate at least one of a preamble for contention-based random access, a preamble for contention-free random access, a preamble for a system information (SI) request, a preamble for beam failure recovery (BFR), or a preamble for a specified group; power parameters of the random access resources; or a measurement threshold for the reference objects. ### Claim 14 (depends on 12) The communications device according to claim 12, wherein the second correspondence comprises: information about a quantity of monitoring occasions corresponding to the reference objects. ### Claim 15 (depends on 12) The communications device according to claim 12, wherein the processor executes the computer program to: when a resource for at least one reference object in the reference objects and a resource for the target transmission information at least partially overlap, perform rate matching or puncturing on the target transmission information based on one of the following preset modes: wherein the preset modes comprise: transmitting a reference object in the reference objects on an overlapping resource; or transmitting the target transmission information on the overlapping resource. ### Claim 16 (depends on 9) The communications device according to claim 9, wherein the reference objects having the same modulo result with respect to the spatial grouping factor are quasi co-located comprises: the reference objects having the same modulo result with respect to the spatial grouping factor are quasi co-located with respect to QCL-TypeA, and QCL-TypeD. ### Claim 17 A communications device, performed by a transmit end being a network device, comprising: a processor, a memory, and a computer program stored in the memory and running on the processor, wherein the processor executes the computer program to: transmit, to a terminal, spatial information of at least two reference objects, wherein the reference objects having the same modulo result with respect to the spatial grouping factor are quasi co-located. ### Claim 18 (depends on 17) The communications device according to claim 17, wherein the spatial information further comprises spatial index information, and the reference objects are indicated by reference index information and/or time domain position information. ### Claim 19 (depends on 18) The communications device according to claim 18, wherein the reference objects comprise an SSB, the SSB is indicated by an SSB index, SSB indexes corresponding to a same spatial index are quasi co-located, wherein the spatial index=SSB index mod M, M is a value range of the spatial grouping factor, and a range of M is {1, 2, 4, 8}. ### Claim 20 (depends on 17) The communications device according to claim 17, wherein the processor executes the computer program to: transmit a first correspondence between the reference objects and random access resources to terminal; or transmit a second correspondence between the reference objects and monitoring occasions to the terminal; wherein the first correspondence comprises at least one of the following: information about a quantity of random access resources corresponding to the reference objects; information about preambles corresponding to the reference objects in the random access resources, wherein the information about preambles is used to indicate at least one of a preamble for contention-based random access, a preamble for contention-free random access, a preamble for a system information (SI) request, a preamble for beam failure recovery (BFR), or a preamble for a specified group; power parameters of the random access resources; or a measurement threshold for the reference objects; wherein the second correspondence comprises: information about a quantity of monitoring occasions corresponding to the reference objects.