# US 12,192,138 B2 · Method and apparatus for transmitting and receiving reference signal in wireless communication system > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,192,138 B2 - Document ID: US12192138B2 - Status: Granted - Kind: B2 - Application number: 18/467,139 - Filed: 2023-09-14 - Published: 2024-01-04 - Granted: 2025-01-07 - Earliest claimed: 2017-11-17 - Assignees: Samsung Electronics Co., Ltd. - Applicants: Samsung Electronics Co., Ltd. - Inventors: Cheol Kyu Shin; Jeong Ho Yeo; Young Woo Kwak; Hoon Dong Noh; Hyun Il Yoo - Web page: https://patentgrep.com/patent/US12192138B2 ## CPC - 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 5/0007: {the frequencies being orthogonal, e.g. OFDM(A) or DMT} - H04L 5/0051: {of dedicated pilots, i.e. pilots destined for a single user or terminal} - H04L 5/0078: {Timing of allocation} - H04L 5/0098: {Signalling of the activation or deactivation of component carriers, subcarriers or frequency bands} - H04L 5/0012: {Hopping in multicarrier systems} - H04L 5/0023: {Time-frequency-space} - H04L 5/0092: {Indication of how the channel is divided} - H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M) ## Abstract Disclosed is a method of transmitting a sounding reference signal (SRS) of a user equipment in a wireless communication system, including identifying an SRS transmission count based on an SRS periodicity, a number of SRS symbols, an SRS repetition factor, a system frame number, a number of slots per a frame for a subcarrier spacing, and a slot number within the frame for the subcarrier spacing, and transmitting, to a base station, the SRS based on the SRS transmission count. ## Claims ### Claim 1 A method of transmitting a sounding reference signal (SRS) of a user equipment in a wireless communication system, the method comprising: identifying an SRS transmission count based on an SRS periodicity, a number of SRS symbols, an SRS repetition factor, a system frame number, a number of slots per a frame for a subcarrier spacing, and a slot number within the frame for the subcarrier spacing; and transmitting, to a base station, the SRS based on the SRS transmission count. ### Claim 2 (depends on 1) The method of claim 1, wherein the SRS transmission count is identified based on a slot offset with the SRS periodicity, the number of SRS symbols, the SRS repetition factor, the system frame number, the number of slots per the frame for the subcarrier spacing, and the slot number within the frame for the subcarrier spacing. ### Claim 3 (depends on 1) The method of claim 1, wherein frequency hopping for the SRS is performed based on the SRS transmission count. ### Claim 4 (depends on 1) The method of claim 1, wherein the number of SRS symbols is 1, 2, or 4, and wherein the SRS repetition factor is less than the number of the SRS symbols. ### Claim 5 (depends on 1) The method of claim 1, wherein information for the number of the SRS symbols and information for the SRS repetition factor is received from the base station via higher layer signaling. ### Claim 6 A user equipment (UE) in a wireless communication system, the UE comprising: a transceiver; and at least one processor coupled with the transceiver and configured to: identify a sounding reference signal (SRS) transmission count based on an SRS periodicity, a number of SRS symbols, an SRS repetition factor, a system frame number, a number of slots per a frame for a subcarrier spacing, and a slot number within the frame for the subcarrier spacing, and transmit, to a base station, an SRS based on the SRS transmission count. ### Claim 7 (depends on 6) The UE of claim 6, wherein the SRS transmission count is identified based on a slot offset with the SRS periodicity, the number of SRS symbols, the SRS repetition factor, the system frame number, the number of slots per the frame for the subcarrier spacing, and the slot number within the frame for the subcarrier spacing. ### Claim 8 (depends on 6) The UE of claim 6, wherein frequency hopping for the SRS is performed based on the SRS transmission count. ### Claim 9 (depends on 6) The UE of claim 6, wherein the number of SRS symbols is 1, 2, or 4, and wherein the SRS repetition factor is less than the number of the SRS symbols. ### Claim 10 (depends on 6) The UE of claim 6, wherein information for the number of the SRS symbols and information for the SRS repetition factor is received from the base station via higher layer signaling. ### Claim 11 A method performed by a base station in a wireless communication system, the method comprising: receiving, from a user equipment, a sounding reference signal (SRS) based on an SRS transmission count, wherein the SRS transmission count is based on an SRS periodicity, a number of SRS symbols, an SRS repetition factor, a system frame number, a number of slots per a frame for a subcarrier spacing, and a slot number within the frame for the subcarrier spacing. ### Claim 12 (depends on 11) The method of claim 11, wherein the SRS transmission count is identified based on a slot offset with the SRS periodicity, the number of SRS symbols, the SRS repetition factor, the system frame number, the number of slots per the frame for the subcarrier spacing, and the slot number within the frame for the subcarrier spacing. ### Claim 13 (depends on 11) The method of claim 11, wherein frequency hopping for the SRS is performed based on the SRS transmission count. ### Claim 14 (depends on 11) The method of claim 11, wherein the number of SRS symbols is 1, 2, or 4, and wherein the SRS repetition factor is less than the number of the SRS symbols. ### Claim 15 (depends on 11) The method of claim 11, wherein information for the number of the SRS symbols and information for the SRS repetition factor is transmitted from the base station via higher layer signaling. ### Claim 16 A base station in a wireless communication system, the base station comprising: a transceiver; and at least one processor coupled with the transceiver and configured to: receive, from a user equipment, a sounding reference signal (SRS) based on an SRS transmission count, wherein the SRS transmission count is based on an SRS periodicity, a number of SRS symbols, an SRS repetition factor, a system frame number, a number of slots per a frame for a subcarrier spacing, and a slot number within the frame for the subcarrier spacing. ### Claim 17 (depends on 16) The base station of claim 16, wherein the SRS transmission count is identified based on a slot offset with the SRS periodicity, the number of SRS symbols, the SRS repetition factor, the system frame number, the number of slots per the frame for the subcarrier spacing, and the slot number within the frame for the subcarrier spacing. ### Claim 18 (depends on 16) The base station of claim 16, wherein frequency hopping for the SRS is performed based on the SRS transmission count. ### Claim 19 (depends on 16) The base station of claim 16, wherein the number of SRS symbols is 1, 2, or 4, and wherein the SRS repetition factor is less than the number of the SRS symbols. ### Claim 20 (depends on 16) The base station of claim 16, wherein information for the number of the SRS symbols and information for the SRS repetition factor is transmitted from the base station via higher layer signaling.