# US 12,192,134 B2 · Sequence-based 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 12,192,134 B2 - Document ID: US12192134B2 - Status: Granted - Kind: B2 - Application number: 17/940,824 - Filed: 2022-09-08 - Published: 2023-05-11 - Granted: 2025-01-07 - Earliest claimed: 2017-09-08 - Assignees: Huawei Technologies Co., Ltd. - Applicants: Huawei Technologies Co., Ltd. - Inventors: Bingyu Qu; Hao Sun - Web page: https://patentgrep.com/patent/US12192134B2 ## 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 5/0053: {Allocation of signalling, i.e. of overhead other than pilot signals} - H04L 27/26: Systems using multi-frequency codes (H04L27/32 takes precedence) - H04L 27/2613: {Structure of the reference signals} - H04L 27/2614: {Peak power aspects} - H04L 27/2628: {Inverse Fourier transform modulators, e.g. inverse fast Fourier transform [IFFT] or inverse discrete Fourier transform [IDFT] modulators (H04L27/2634 takes precedence)} - H04W 72/1268: of uplink data flows - H04W 72/23: in the downlink direction of a wireless link, i.e. towards a terminal - H04W 72/542: using measured or perceived quality - H04L 5/0007: {the frequencies being orthogonal, e.g. OFDM(A) or DMT} - H04L 5/0055: {Physical resource allocation for ACK/NACK (for physical mapping arrangements in ARQ protocols H04L1/1861)} - 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 sequence-based signal processing method and apparatus are provided. A sequence meeting a requirement for sending a signal by using a physical uplink control channel (PUCCH) is determined, where the sequence is a sequence {fn} consisting of N elements, fn is an element in the sequence {fn}, and the determined sequence {fn} is a sequence meeting a preset condition; then, the N elements in the sequence {fn} are respectively mapped to N subcarriers to generate a first signal; and the first signal is sent. By using the determined sequence, when a signal is sent by using a PUCCH, a low sequence correlation can be maintained, and a relatively small peak-to-average power ratio (PAPR) value and cubic metric (CM) value can also be maintained, thereby meeting a requirement of a communication application environment in which a signal is sent by using a PUCCH. ## Claims ### Claim 1 A sequence-based signal processing method comprising: receiving a first signal; and processing the first signal based on a sequence {fn}, wherein fn is an element in the sequence {fn}, and wherein the sequence {fn} is generated based on a sequence {sn} consisting of 18 elements, and the sequence {sn} is {−3, 3, −1, 1, 3, 1, −3, −1, 1, 1, −3, 1, 3, 3, −1, −3, −3, −3}. ### Claim 2 (depends on 1) The signal processing method according to claim 1, wherein the first signal occupies 18 subcarriers. ### Claim 3 (depends on 2) The signal processing method according to claim 2, wherein the 18 subcarriers are consecutive. ### Claim 4 (depends on 2) The signal processing method according to claim 2, wherein the 18 subcarriers are equally spaced. ### Claim 5 (depends on 1) The signal processing method according to claim 1, wherein the first signal is a reference signal. ### Claim 6 (depends on 1) The signal processing method according to claim 1, wherein the first signal is a signal carrying uplink control information (UCI). ### Claim 7 (depends on 1) The signal processing method according to claim 1, wherein the sequence {sn} belongs to a sequence set. ### Claim 8 (depends on 1) The signal processing method according to claim 1, wherein fn meets fn=xn·e2π·j·a·n, 0≤n≤17, n is an integer, a is a real number, xn=eπ·j·sn/4. ### Claim 9 A sequence-based signal processing apparatus comprising: a storage medium including executable instructions; and a processor coupled to the storage medium wherein the executable instructions, when executed by the processor, cause the apparatus to: receive a first signal; and process the first signal based on a sequence {fn}, wherein fn is an element in the sequence {fn}, the sequence {fn} is generated based on a sequence {sn} consisting of 18 elements, and the sequence {sn} is {−3, 3, −1, 1, 3, 1, −3, −1, 1, 1, −3, 1, 3, 3, −1, −3, −3, −3}. ### Claim 10 (depends on 9) The signal processing apparatus according to claim 9, wherein the first signal occupies 18 subcarriers. ### Claim 11 (depends on 10) The signal processing apparatus according to claim 10, wherein the 18 subcarriers are consecutive. ### Claim 12 (depends on 10) The signal processing apparatus according to claim 10, wherein the 18 subcarriers are equally spaced. ### Claim 13 (depends on 9) The signal processing apparatus according to claim 9, wherein the first signal is a reference signal. ### Claim 14 (depends on 9) The signal processing apparatus according to claim 9, wherein the first signal is a signal carrying uplink control information (UCI). ### Claim 15 (depends on 9) The signal processing apparatus according to claim 9, wherein the sequence {sn} belongs to a sequence set. ### Claim 16 (depends on 9) The signal processing apparatus according to claim 9, wherein fn meets fn=xn·e2π·j·a·n, 0≤n≤17, n is an integer, a is a real number, xn=eπ·j·sn/4. ### Claim 17 A non-transitory computer-readable storage medium comprising computer-executable instructions, wherein the computer-executable instructions, when executed by a computer, cause the computer to: receive a first signal; and process the first signal based on a sequence {fn}, wherein fn is an element in the sequence {fn}, the sequence {fn} is generated based on a sequence {sn} consisting of 18 elements, and the sequence {sn} is {−3, 3, −1, 1, 3, 1, −3, −1, 1, 1, −3, 1, 3, 3, −1, −3, −3, −3}. ### Claim 18 (depends on 17) The non-transitory computer-readable storage medium according to claim 17, wherein the first signal occupies 18 subcarriers. ### Claim 19 (depends on 18) The non-transitory computer-readable storage medium according to claim 18, wherein the 18 subcarriers are consecutive. ### Claim 20 (depends on 18) The non-transitory computer-readable storage medium according to claim 18, wherein the 18 subcarriers are equally spaced. ### Claim 21 (depends on 17) The non-transitory computer-readable storage medium according to claim 17, wherein the first signal is a reference signal. ### Claim 22 (depends on 17) The non-transitory computer-readable storage medium according to claim 17, wherein the first signal is a signal carrying uplink control information (UCI). ### Claim 23 (depends on 17) The non-transitory computer-readable storage medium according to claim 17, wherein the sequence {sn} belongs to a sequence set. ### Claim 24 (depends on 17) The non-transitory computer-readable storage medium according to claim 17, wherein fn meets fn=xn·e2π·j·a·n, 0≤n≤17, n is an integer, a is a real number, xn=eπ·j·sn/4.