# US 12,184,574 B2 · Method and apparatus for determining and transmitting parameter of reference signal, terminal device and base station > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,184,574 B2 - Document ID: US12184574B2 - Status: Granted - Kind: B2 - Application number: 17/644,044 - Filed: 2021-12-13 - Published: 2022-04-07 - Granted: 2024-12-31 - Earliest claimed: 2017-01-04 - Assignees: Zte Corporation - Applicants: ZTE Corporation - Inventors: Chuangxin Jiang; Zhaohua Lu; Yu Ngok Li; Hao Wu; Bo Gao; Nan Zhang - Web page: https://patentgrep.com/patent/US12184574B2 ## 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 5/005: {of common pilots, i.e. pilots destined for multiple users or terminals} - H04B 7/01: Reducing phase shift - H04L 5/0007: {the frequencies being orthogonal, e.g. OFDM(A) or DMT} - H04L 27/26: Systems using multi-frequency codes (H04L27/32 takes precedence) - H04W 76/27: Transitions between radio resource control [RRC] states - H04L 5/0037: {Inter-user or inter-terminal allocation} - H04L 5/0094: {Indication of how sub-channels of the path are allocated} - 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 The embodiments of the present disclosure disclose a method for determining a parameter of a reference signal, a method for transmitting a parameter of a reference signal, a terminal device and a base station. The determination method includes: obtaining a parameter of a first type of reference signal by a first signaling; and determining a parameter of a second type of reference signal according to the obtained parameter of the first type of reference signal, and the first type of reference signal and/or the second type of reference signal include at least one of: reference signal for data demodulation, reference signal for phase noise compensation, reference signal for Doppler shift compensation, or extended reference signal for data demodulation. ## Claims ### Claim 1 A method for wireless communication, comprising: determining, by a network apparatus, a first parameter associated with a demodulation reference signal; determining, by the network apparatus, according to the first parameter, a second parameter associated with a second reference signal, wherein the second reference signal is related to phase noise compensation and is not a demodulation reference signal; and receiving or transmitting the second reference signal according to the second parameter, wherein the receiving or transmitting the second reference signal and applying a time-domain orthogonal sequence for the demodulation reference signal (DMRS) do not occur simultaneously such that, when the second reference signal is received or transmitted, the time-domain orthogonal sequence is not applied for the demodulation reference signal and, when the time-domain orthogonal sequence is configured for the DMRS, the second reference signal is not received or transmitted. ### Claim 2 (depends on 1) The method of claim 1, comprising: receiving or transmitting, by the network apparatus, a Radio Resource Control (RRC) message indicating a location of a transmission resource block for the second reference signal in a sub-band that comprises multiple transmission resource blocks. ### Claim 3 (depends on 1) The method of claim 1, wherein the second parameter is used by the network apparatus to generate a sequence of the second reference signal. ### Claim 4 (depends on 3) The method of claim 3, wherein the sequence of the second reference signal is a replicate of the sequence of the demodulation reference signal at a same frequency-domain location. ### Claim 5 (depends on 1) The method of claim 1, wherein the determining of the first parameter comprises: receiving or transmitting, by the network apparatus, a Radio Resource Control message that includes the first parameter for generating a sequence of the demodulation reference signal. ### Claim 6 (depends on 1) The method of claim 1, wherein the first parameter indicates a port number of the demodulation reference signal, and the second parameter indicates a transmission resource used by the second reference signal. ### Claim 7 A wireless communication device implemented as a base station, comprising at least one processor that is configured to: determine a first parameter associated with a demodulation reference signal; determine, according to the first parameter, a second parameter associated with a second reference signal, wherein the second reference signal is related to phase noise compensation and is not a demodulation reference signal; and transmit the second reference signal according to the second parameter, wherein transmitting the second reference signal and configuration of a time-domain orthogonal sequence for the demodulation reference signal (DMRS) do not occur simultaneously such that, when wireless communication device transmits the second reference signal, the time-domain orthogonal sequence is not configured for the demodulation reference signal and, when the time-domain orthogonal sequence is configured for the DMRS, the wireless communication device does not transmit the second reference signal. ### Claim 8 (depends on 7) The wireless communication device of claim 7, wherein the at least one processor is configured to: transmit a Radio Resource Control (RRC) message indicating a location of a transmission resource block for the second reference signal in a sub-band that comprises multiple transmission resource blocks. ### Claim 9 (depends on 7) The wireless communication device of claim 7, wherein the second parameter is used to generate a sequence of the second reference signal. ### Claim 10 (depends on 7) The wireless communication device of claim 7, wherein the at least one processor is configured to: transmit a Radio Resource Control message that includes the first parameter for generating a sequence of the demodulation reference signal. ### Claim 11 (depends on 10) The wireless communication device of claim 10, wherein the sequence of the second reference signal is a replicate of the sequence of the demodulation reference signal at a same frequency-domain location. ### Claim 12 (depends on 7) The wireless communication device of claim 7, wherein the first parameter indicates a port number of the demodulation reference signal, and the second parameter indicates a transmission resource used by the second reference signal. ### Claim 13 A wireless communication device implemented as a terminal device, comprising at least one processor that is configured to: determine a first parameter associated with a demodulation reference signal; determine, according to the first parameter, a second parameter associated with a second reference signal, wherein the second reference signal is related to phase noise compensation and is not a demodulation reference signal; and receive the second reference signal according to the second parameter, wherein receiving the second reference signal and configuration of a time-domain orthogonal sequence for the demodulation reference signal (DMRS) do not occur simultaneously such that, when wireless communication device receives the second reference signal, the time-domain orthogonal sequence is not configured for the demodulation reference signal and, when the time-domain orthogonal sequence is configured for the DMRS, the wireless communication device does not receive the second reference signal. ### Claim 14 (depends on 13) The wireless communication device of claim 13, wherein the at least one processor is configured to: receive a Radio Resource Control (RRC) message indicating a location of a transmission resource block for the second reference signal in a sub-band that comprises multiple transmission resource blocks. ### Claim 15 (depends on 13) The wireless communication device of claim 13, wherein the second parameter is used to generate a sequence of the second reference signal. ### Claim 16 (depends on 13) The wireless communication device of claim 13, wherein the at least one processor is configured to: receive a Radio Resource Control message that includes the first parameter for generating a sequence of the demodulation reference signal. ### Claim 17 (depends on 16) The wireless communication device of claim 16, wherein the sequence of the second reference signal is a replicate of the sequence of the demodulation reference signal at a same frequency-domain location. ### Claim 18 (depends on 13) The wireless communication device of claim 13, wherein the first parameter indicates a port number of the demodulation reference signal, and the second parameter indicates a transmission resource used by the second reference signal.