# US 12,016,005 B2 · Terminal device, and communication method for sounding reference signal transmission using spatial domain filter settings > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,016,005 B2 - Document ID: US12016005B2 - Status: Granted - Kind: B2 - Application number: 17/275,161 - Filed: 2019-09-06 - Published: 2022-06-23 - Granted: 2024-06-18 - Earliest claimed: 2018-09-14 - Assignees: Sharp Kabushiki Kaisha; FG Innovation Company Limited - Applicants: Sharp Kabushiki Kaisha; FG Innovation Company Limited - Inventors: Hiromichi Tomeba; Ryota Yamada - Web page: https://patentgrep.com/patent/US12016005B2 ## CPC - H04B 7/06966: {using beam correspondence; using channel reciprocity, e.g. downlink beam training based on uplink sounding reference signal [SRS]} - H04B 7/0456: Selection of precoding matrices or codebooks, e.g. using matrices antenna weighting - H04L 5/0053: {Allocation of signalling, i.e. of overhead other than pilot signals} - H04W 16/28: using beam steering - H04W 72/046: {the resource being in the space domain, e.g. beams} - H04B: TRANSMISSION - 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 A terminal device and a communication method are provided. The terminal device includes a receiver for receiving sounding reference signal (SRS) setting information and setting information for signals having a spatial correlation set to a SRS, and a transmitter for transmitting the SRS. The SRS setting information includes information indicating the spatial correlation to the SRS. The receiver, when receiving the signals having the spatial correlation set to the SRS, sets a first spatial domain reception filter and a second spatial domain reception filter. The transmitter, when transmitting the SRS, sets a first spatial domain transmission filter and a second spatial domain transmission filter. The first spatial domain reception filter and the first spatial domain transmission filter are set with beam correspondence. The second spatial domain reception filter and the second spatial domain transmission filter are set with beam correspondence. ## Claims ### Claim 1 A terminal device that communicates with a base station device, the terminal device comprising: a receiver for receiving sounding reference signal (SRS) setting information and setting information for signals, the signals having a spatial correlation that is set to at least one SRS; and a transmitter for transmitting the at least one SRS, wherein: the SRS setting information includes information indicating the spatial correlation with the at least one SRS; the transmitter, when transmitting the at least one SRS, sets a first spatial domain transmission filter and a second spatial domain transmission filter; a first spatial domain reception filter and the first spatial domain transmission filter are set with beam correspondence; a second spatial domain reception filter and the second spatial domain transmission filter are set with beam correspondence; the setting information for the signals having the spatial correlation set to the at least one SRS includes information identifying the first spatial domain reception filter and the second spatial domain reception filter; and the transmitter transmits the at least one SRS using at least one of the first spatial domain transmission filter and the second spatial domain transmission filter based on the information indicating the spatial correlation with the at least one SRS and the signals having the spatial correlation set to the at least one SRS. ### Claim 2 (depends on 1) The terminal device according to claim 1, wherein the first spatial domain reception filter is associated with a predetermined transmission configuration indication (TCI)-State. ### Claim 3 (depends on 1) The terminal device according to claim 1, wherein the information identifying the first spatial domain reception filter and the second spatial domain reception filter is set in a predetermined frequency band. ### Claim 4 (depends on 1) The terminal device according to claim 1, wherein the SRS setting information includes the information identifying the first spatial domain reception filter and the second spatial domain reception filter. ### Claim 5 (depends on 1) The terminal device according to claim 1, wherein each of the signals having the spatial correlation set to the at least one SRS comprises a synchronization signal (SS) Physical Broadcast Channel (PBCH) signal, and a filter that is set when receiving each SS/PBCH signal is set as the first spatial domain reception filter. ### Claim 6 A communication method for a terminal device communicating with a base station device, the communication method comprising: receiving sounding reference signal (SRS) setting information and setting information for signals, the signals having a spatial correlation that is set to at least one SRS; and transmitting the at least one SRS, wherein: the SRS setting information includes information indicating the spatial correlation with the at least one SRS; when transmitting the at least one SRS, a first spatial domain transmission filter and a second spatial domain transmission filter are set; a first spatial domain reception filter and the first spatial domain transmission filter are set with beam correspondence; a second spatial domain reception filter and the second spatial domain transmission filter are set with beam correspondence; the setting information for the signals having the spatial correlation set to the at least one SRS includes information identifying the first spatial domain reception filter and the second spatial domain reception filter; and the at least one SRS is transmitted using at least one of the first spatial domain transmission filter and the second spatial domain transmission filter based on the information indicating the spatial correlation with the at least one SRS and the signals having the spatial correlation set to the at least one SRS. ### Claim 7 (depends on 6) The communication method according to claim 6, wherein the first spatial domain reception filter is associated with a predetermined transmission configuration indication (TCI)-State. ### Claim 8 (depends on 6) The communication method according to claim 6, wherein the information identifying the first spatial domain reception filter and the second spatial domain reception filter is set in a predetermined frequency band. ### Claim 9 (depends on 6) The communication method according to claim 6, wherein the SRS setting information includes the information identifying the first spatial domain reception filter and the second spatial domain reception filter. ### Claim 10 (depends on 6) The communication method according to claim 6, wherein: each of the signals having the spatial correlation set to the at least one SRS comprises a synchronization signal (SS)/Physical Broadcast Channel (PBCH) signal, and a filter that is set when receiving each SS/PBCH signal is set as the first spatial domain reception filter.