# US 11,309,949 B2 · Signal processing 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 11,309,949 B2 - Document ID: US11309949B2 - Status: Granted - Kind: B2 - Application number: 16/619,362 - Filed: 2017-09-14 - Published: 2020-05-07 - Granted: 2022-04-19 - Earliest claimed: 2017-09-14 - Assignees: Guangdong Oppo Mobile Telecommunications Corp., Ltd. - Applicants: Guangdong Oppo Mobile Telecommunications Corp., Ltd. - Inventors: Wenhong Chen - Web page: https://patentgrep.com/patent/US11309949B2 ## CPC - H04L 5/0023: {Time-frequency-space} - H04B 7/0617: {for beam forming} - H04B 7/06966: {using beam correspondence; using channel reciprocity, e.g. downlink beam training based on uplink sounding reference signal [SRS]} - H04B 7/06968: {using quasi-colocation [QCL] between signals} - H04B 7/088: {using beam selection} - 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 5/0051: {of dedicated pilots, i.e. pilots destined for a single user or terminal} - H04L 5/0064: {Rate requirement of the data, e.g. scalable bandwidth, data priority} - H04L 5/0091: {Signalling for the administration of the divided path, e.g. signalling of configuration information} - H04L 27/2613: {Structure of the reference signals} - H04W 72/23: in the downlink direction of a wireless link, i.e. towards a terminal - H04L 5/0032: {Distributed allocation, i.e. involving a plurality of allocating devices, each making partial allocation} - H04L 5/008: {once only, on installation} - H04L 25/0224: {using sounding signals} - 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 An embodiment of the present application relates to a signal processing method and apparatus. The method includes: determining a plurality of signals that are quasi-co-located with a first port set of a first reference signal, wherein the first port set is used to send or receive the first reference signal, and the first port set comprises at least one port; determining a target signal among the plurality of signals; and sending or receiving the first reference signal via the first port set according to a quasi-co-location relationship between the first port set and the target signal. ## Claims ### Claim 1 A signal processing method, comprising: determining, by a terminal device, a plurality of signals that are quasi-co-located with a first port set in a first reference signal, wherein the first port set is used to send or receive the first reference signal, the first port set comprises all antenna ports for sending or receiving the first reference signal, and the plurality of signals are different types of signals; determining, by the terminal device, a target signal among the plurality of signals; and receiving, by the terminal device, the first reference signal via the first port set according to a quasi-co-location relationship between the first port set and the target signal, wherein the first reference signal and any one of the plurality of signals have the same or similar channel large-scale parameters, or a beam for sending or receiving the first reference signal is the same as or similar to a beam for sending or receiving any one of the plurality of signals. ### Claim 2 (depends on 1) The method according to claim 1, wherein the determining, by the terminal device, the plurality of signals that are quasi-co-located with the first port set of the first reference signal comprises: determining, by the terminal device, a second signal that is quasi-co-located with the first port set according to a beam correspondence, the second signal belonging to the plurality of signals. ### Claim 3 (depends on 2) The method according to claim 2, wherein the determining, by the terminal device, the second signal that is quasi-co-located with the first port set according to the beam correspondence comprises: when a beam for sending or receiving a signal on the first port set is the same as a beam for sending or receiving the second signal, determining that the first port set and the second signal are quasi-co-located on a spatial receiving parameter. ### Claim 4 (depends on 1) The method according to claim 1, wherein the determining, by the terminal device, the target signal among the plurality of signals comprises: determining, by the terminal device, the target signal based on a priority of each of the plurality of signals. ### Claim 5 (depends on 4) The method according to claim 4, wherein the priority of the target signal is higher than a priority of a third signal in the plurality of signals and wherein the first port set and the target signal are quasi-co-located with respect to a target channel large-scale parameter, and the first port set and the third signal are quasi-co-located with respect to the target channel large-scale parameter. ### Claim 6 (depends on 1) The method according to claim 1, wherein the determining, by the terminal device, the target signal among the plurality of signals comprises: determining, by the terminal device, the target signal based on a preset rule according to at least one quasi-co-location indication information sent by a network device, wherein the at least one quasi-co-location indication information is used to determine the plurality of signals quasi-co-located with the first port set. ### Claim 7 (depends on 1) The method according to claim 1, wherein the first reference signal is one of a demodulation reference signal (DMRS), a channel state information reference signal (CSI-RS), a channel sounding reference signal (SRS), and a phase tracking reference signal (PTRS). ### Claim 8 (depends on 1) The method according to claim 1, wherein the determining, by the terminal device, the plurality of signals that are quasi-co-located with the first port set of the first reference signal comprises: receiving, by the terminal device, quasi-co-location indication information sent by a network device; and determining, by the terminal device, a first signal that is quasi-co-located with the first port set according to the quasi-co-location indication information, the first signal belonging to the plurality of signals. ### Claim 9 (depends on 1) The method according to claim 1, wherein the channel large-scale parameters comprise at least one parameter of a delay spread, a Doppler spread, a Doppler shift, an average gain, an average delay, a departure of angle, an arrival of angle, a correlation of receiving, a correlation of transmitting, and a spatial receiving parameter. ### Claim 10 (depends on 1) The method according to claim 1, wherein the receiving, by the terminal device, the first reference signal via the first port set according to the quasi-co-location relationship between the first port set and the target signal comprises: determining, by the terminal device, a target beam that sends or receives the target signal; and receiving, by the terminal device, the first reference signal via the target beam. ### Claim 11 A terminal device, comprising: a storage unit; and a processor, wherein the storage unit is used for storing instructions, the processor is used for executing the instructions stored in the storage unit, and when the processor executes the instructions stored in the storage unit, the execution causes the processor to: determine a plurality of signals that are quasi-co-located with a first port set of the first reference signal, wherein the first port set is used to send or receive the first reference signal, the first port set comprises all antenna ports for sending or receiving the first reference signal, and the plurality of signals are different types of signals; determine a target signal among the plurality of signals; and receive the first reference signal via the first port set according to a quasi-co-location relationship between the first port set and the target signal, wherein the first reference signal and any one of the plurality of signals have the same or similar channel large-scale parameters, or a beam for sending or receiving the first reference signal is the same as or similar to a beam for sending or receiving any one of the plurality of signals. ### Claim 12 (depends on 11) The terminal device according to claim 11, wherein the execution further causes the processor to: determine a second signal that is quasi-co-located with the first port set according to a beam correspondence, the second signal belonging to the plurality of signals. ### Claim 13 (depends on 12) The terminal device according to claim 12, wherein the execution further causes the processor to: when a beam for sending or receiving a signal on the first port set is the same as a beam for sending or receiving the second signal, determine that the first port set and the second signal are quasi-co-located on a spatial receiving parameter. ### Claim 14 (depends on 11) The terminal device according to claim 11, wherein the execution further causes the processor to: determine the target signal based on a priority of each of the plurality of signals. ### Claim 15 (depends on 14) The terminal device according to claim 14, wherein the priority of the target signal is higher than a priority of a third signal in the plurality of signals and wherein the first port set and the target signal are quasi-co-located with respect to a target channel large-scale parameter, and the first port set and the third signal are quasi-co-located with respect to the target channel large-scale parameter. ### Claim 16 (depends on 11) The terminal device according to claim 11, wherein the execution further causes the processor to: determine the target signal based on a preset rule according to at least one quasi-co-location indication information sent by a network device, wherein the at least one quasi-co-location indication information is used to determine the plurality of signals quasi-co-located with the first port set signal. ### Claim 17 (depends on 11) The terminal device according to claim 11, wherein the first reference signal is one of a demodulation reference signal (DMRS), a channel state information reference signal (CSI-RS), a channel sounding reference signal (SRS), and a phase tracking reference signal (PTRS). ### Claim 18 (depends on 11) The terminal device according to claim 11, wherein the execution further causes the processor to perform: receive quasi-co-location indication information sent by a network device; and determine a first signal that is quasi-co-located with the first port set according to the quasi-co-location indication information, the first signal belonging to the plurality of signals. ### Claim 19 (depends on 11) The terminal device according to claim 11, wherein the channel large-scale parameters comprise at least one parameter of a delay spread, a Doppler spread, a Doppler shift, an average gain, an average delay, a departure of angle, an arrival of angle, a correlation of receiving, a correlation of transmitting, and a spatial receiving parameter. ### Claim 20 A network device, comprising: a storage unit; and a processor, wherein the storage unit is used for storing instructions, the processor is used for executing the instructions stored in the storage unit, and when the processor executes the instructions stored in the storage unit, the execution causes the processor to: send quasi-co-location indication information to a terminal device; wherein the quasi-co-location indication information indicates a first signal is quasi-co-located with a first port set of the terminal device, the first signal belonging to a plurality of signals send the plurality of signals to the terminal device; wherein the first reference signal and any one of the plurality of signals have the same or similar channel large-scale parameters, or a beam for sending or receiving the first reference signal is the same as or similar to a beam for sending or receiving any one of the plurality of signals.