# US 2019/0379495 A1 · Techniques for multi-cluster uplink transmissions > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2019/0379495 A1 - Document ID: US20190379495A1 - Status: Published application - Kind: A1 - Application number: 16/551,292 - Filed: 2019-08-26 - Published: 2019-12-12 - Earliest claimed: 2017-03-24 - Assignees: QUALCOMM Incorporated - Applicants: QUALCOMM Incorporated - Inventors: Alexandros MANOLAKOS; Joseph Binamira SORIAGA; Hao XU; Wanshi CHEN; Tingfang JI; Peter GAAL - Web page: https://patentgrep.com/patent/US20190379495A1 ## CPC - H04L 5/005: {of common pilots, i.e. pilots destined for multiple users or terminals} - H04L 1/0013: {Rate matching, e.g. puncturing or repetition of code symbols} - H04L 5/0044: {Allocation of payload; Allocation of data channels, e.g. PDSCH or PUSCH} - 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 5/0053: {Allocation of signalling, i.e. of overhead other than pilot signals} - H04L 5/0094: {Indication of how sub-channels of the path are allocated} - H04L 25/0224: {using sounding signals} - H04W 72/044: based on the type of the allocated resource - H04L 5/0005: {Time-frequency} - H04L 5/0007: {the frequencies being orthogonal, e.g. OFDM(A) or DMT} - H04L 5/0041: {Frequency-non-contiguous} - 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 Various aspects described herein relate to techniques for multi-cluster uplink transmissions in wireless communications systems. A method, a computer-readable medium, and an apparatus are provided. In an aspect, the method comprises receiving, by a user equipment (UE), information of one or more sounding reference signal (SRS) patterns, generating, by the UE, one or more rate matching parameters based on the information, and transmitting, by the UE, an uplink signal based on the generated one or more rate matching parameters. ## Claims ### Claim 1 A method of wireless communications, comprising: receiving, by a user equipment (UE), information of one or more sounding reference signal (SRS) patterns; generating, by the UE, one or more rate matching parameters based on the information; determining, by the UE, whether an uplink signal is an orthogonal frequency division multiplexing with cyclic prefix (CP-OFDM) signal or a discrete Fourier transform spread OFDM (DFT-S-OFDM) signal; and determining, by the UE, a number of clusters that can be used by the UE for uplink transmissions based on the determination of the uplink signal being a CP-OFDM signal or a DFT-S-OFDM signal, wherein the number of clusters is different for the uplink signal being a CP-OFDM signal or a DFT-S-OFDM signal; and transmitting, by the UE, the uplink signal based on the generated one or more rate matching parameters. ### Claim 2 (depends on 1) The method of claim 1, further comprising: identifying, by the UE, one or more SRS resources based on the information, wherein the uplink signal is transmitted around the identified one or more SRS resources. ### Claim 3 (depends on 2) The method of claim 2, wherein the identified one or more SRS resources are configured semi-statically or independently. ### Claim 4 (depends on 1) The method of claim 1, further comprising: performing, by the UE, rate matching for the uplink signal based on the generated one or more rate matching parameters. ### Claim 5 (depends on 1) The method of claim 1, further comprising: puncturing, by the UE, the uplink signal based on the generated one or more rate matching parameters. ### Claim 6 (depends on 1) The method of claim 1, wherein the uplink signal is a Physical Uplink Shared Channel (PUSCH) or Physical Uplink Control Channel (PUCCH) signal. ### Claim 7 (depends on 1) The method of claim 1, wherein the uplink signal is a long PUCCH channel, or a short PUCCH channel, or a PUSCH channel with a duration from one to fourteen symbols. ### Claim 8 (depends on 1) The method of claim 1, further comprising: identifying, by the UE, one or more SRS resources based on the information, wherein the uplink signal is transmitted in the identified one or more SRS resources. ### Claim 9 (depends on 1) The method of claim 1, further comprising: decreasing, by the UE, the number of clusters in response to the number of clusters being larger than a maximum number of clusters the UE supports. ### Claim 10 (depends on 9) The method of claim 9, wherein the clusters are non-contiguous clusters in frequency domain that can be used by the UE for the uplink transmission, and wherein a symbol is an orthogonal frequency division multiplexing (OFDM) symbol. ### Claim 11 (depends on 9) The method of claim 9, wherein the decreasing the number of clusters comprises dropping one or multiple of the clusters. ### Claim 12 (depends on 1) The method of claim 1, wherein the uplink signal is transmitted when at least one other UE is scheduled to transmit SRS. ### Claim 13 (depends on 1) The method of claim 1, wherein the one or more SRS patterns include at least a cell-specific SRS pattern or a UE-specific SRS pattern, and wherein the one or more rate matching parameters are generated based on at least the cell-specific SRS pattern or the UE-specific SRS pattern. ### Claim 14 A method of wireless communications, comprising: receiving, by a user equipment (UE), one or more rate matching parameters; determining, by the UE, that the UE is not scheduled to transmit uplink signals in one or more sounding reference signal (SRS) resources based on the received one or more rate matching parameters; determining, by the UE, whether an uplink signal is an orthogonal frequency division multiplexing with cyclic prefix (CP-OFDM) signal or a discrete Fourier transform spread OFDM (DFT-S-OFDM) signal; determining, by the UE, a number of clusters that can be used by the UE for uplink transmissions based on the determination of the uplink signal being a CP-OFDM signal or a DFT-S-OFDM signal, wherein the number of clusters is different for the uplink signal being a CP-OFDM signal or a DFT-S-OFDM signal; and transmitting, by the UE, an uplink signal based on the determinations. ### Claim 15 (depends on 14) The method of claim 14, wherein the one or more rate matching parameters includes one or more SRS patterns indicating the one or more SRS resources. ### Claim 16 (depends on 14) The method of claim 14, further comprising: identifying, by the UE, the one or more SRS resources based on the one or more rate matching parameters, wherein the uplink signal is transmitted around the identified one or more SRS resources. ### Claim 17 (depends on 14) The method of claim 14, further comprising: performing, by the UE, rate matching for the uplink signal based on the one or more rate matching parameters. ### Claim 18 (depends on 14) The method of claim 14, further comprising: puncturing, by the UE, the uplink signal based on the one or more rate matching parameters. ### Claim 19 (depends on 14) The method of claim 14, wherein the uplink signal is an SRS, a PUSCH signal, or a PUCCH signal. ### Claim 20 An apparatus for wireless communications, comprising: a receiver configured to receive signals; a transmitter configured to transmit signals; a memory configured to store instructions; and at least one processor communicatively coupled with the receiver, the transmitter, and the memory, wherein the at least one processor is configured to execute the instructions to: receive, via the receiver, information of one or more sounding reference signal (SRS) patterns; generate one or more rate matching parameters based on the information; determine whether an uplink signal is an orthogonal frequency division multiplexing with cyclic prefix (CP-OFDM) signal or a discrete Fourier transform spread OFDM (DFT-S-OFDM) signal; determine a number of clusters that can be used by the UE for uplink transmissions based on the determination of the uplink signal being a CP-OFDM signal or a DFT-S-OFDM signal, wherein the number of clusters is different for the uplink signal being a CP-OFDM signal or a DFT-S-OFDM signal; and transmit, via the transmitter, the uplink signal based on the generated one or more rate matching parameters. ### Claim 21 (depends on 20) The apparatus of claim 20, wherein the at least one processor is configured to execute further instructions to: identify one or more SRS resources based on the information; and transmit, via the transmitter, the uplink signal around the identified one or more SRS resources. ### Claim 22 (depends on 20) The apparatus of claim 20, wherein the at least one processor is configured to execute further instructions to: perform rate matching for the uplink signal based on the generated one or more rate matching parameters. ### Claim 23 (depends on 20) The apparatus of claim 20, wherein the at least one processor is configured to execute further instructions to: puncture the uplink signal based on the generated one or more rate matching parameters. ### Claim 24 (depends on 20) The apparatus of claim 20, wherein the uplink signal is a Physical Uplink Shared Channel (PUSCH) or Physical Uplink Control Channel (PUCCH) signal. ### Claim 25 (depends on 20) The apparatus of claim 20, wherein the at least one processor is configured to execute further instructions to: decrease the number of clusters in response to the number of clusters being larger than a maximum number of clusters the apparatus supports. ### Claim 26 An apparatus for wireless communications, comprising: a receiver configured to receive signals; a transmitter configured to transmit signals; a memory configured to store instructions; and at least one processor communicatively coupled with the receiver, the transmitter, and the memory, wherein the at least one processor is configured to execute the instructions to: receive, via the receiver, one or more rate matching parameters; determine that the apparatus is not scheduled to transmit uplink signals in one or more sounding reference signal (SRS) resources based on the received one or more rate matching parameters; determine whether an uplink signal is an orthogonal frequency division multiplexing with cyclic prefix (CP-OFDM) signal or a discrete Fourier transform spread OFDM (DFT-S-OFDM) signal; and determine a number of clusters that can be used by the UE for uplink transmissions based on the determination of the uplink signal being a CP-OFDM signal or a DFT-S-OFDM signal, wherein the number of clusters is different for the uplink signal being a CP-OFDM signal or a DFT-S-OFDM signal; and transmit, via the transmitter, an uplink signal based on the determination. ### Claim 27 (depends on 26) The apparatus of claim 26, wherein the one or more rate matching parameters includes one or more SRS patterns that indicate the one or more SRS resources. ### Claim 28 (depends on 26) The apparatus of claim 26, wherein the at least one processor is configured to execute further instructions to: identify the one or more SRS resources based on the one or more rate matching parameters; and transmit, via the transmitter, the uplink signal around the identified one or more SRS resources. ### Claim 29 (depends on 26) The apparatus of claim 26, wherein the at least one processor is configured to execute further instructions to: perform rate matching for the uplink signal based on the one or more rate matching parameters. ### Claim 30 (depends on 26) The apparatus of claim 26, wherein the at least one processor is configured to execute further instructions to: puncture the uplink signal based on the one or more rate matching parameters.