# US 12,003,455 B2 · Intra-symbol OCC mapping for transmissions such as NR-U PUCCH transmissions > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,003,455 B2 - Document ID: US12003455B2 - Status: Granted - Kind: B2 - Application number: 17/266,764 - Filed: 2019-08-07 - Published: 2021-09-23 - Granted: 2024-06-04 - Earliest claimed: 2018-08-09 - Assignees: Telefonaktiebolaget LM Ericsson (publ) - Applicants: Telefonaktiebolaget LM Ericsson (publ) - Inventors: Gustav Almquist; Stephen Grant - Web page: https://patentgrep.com/patent/US12003455B2 ## CPC - H04L 5/0053: {Allocation of signalling, i.e. of overhead other than pilot signals} - H04L 5/0007: {the frequencies being orthogonal, e.g. OFDM(A) or DMT} - H04L 5/0016: {Time-frequency-code} - H04L 27/2602: {Signal structure} - H04W 16/14: Spectrum sharing arrangements {between different networks} - H04W 72/21: in the uplink direction of a wireless link, i.e. towards the network - H04L 5/0051: {of dedicated pilots, i.e. pilots destined for a single user or terminal} - 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 Systems and methods are disclosed herein for intra-symbol Orthogonal Cover Code (OCC) mapping for transmissions such as, e.g., New Radio-Unlicensed (NR-U) Physical Uplink Control Channel (PUCCH) transmissions. In this regard, embodiments of a method performed by a wireless device and corresponding embodiments of a wireless device are disclosed. In some embodiments, a method performed by a wireless device comprises selecting a repetition mapping for In-Phase/Quadrature-Phase (I/Q) symbol repetitions within an Orthogonal Frequency Division Multiplexing (OFDM) or Discrete Fourier Transform spread OFDM (DFT-s-OFDM) symbol of an uplink transmission. The I/Q symbol repetitions are for application of an intra data symbol OCC to the I/Q symbol repetitions. The method further comprises transmitting an uplink transmission using the selected repetition mapping. In this manner, performance is improved. Embodiments of a method of operation of a base station and corresponding embodiments of a base station are also disclosed. ## Claims ### Claim 1 A method performed by a wireless device, the method comprising: selecting a repetition mapping for In-Phase/Quadrature-Phase, I/Q, symbol repetitions within an Orthogonal Frequency Division Multiplexing, OFDM, or Discrete Fourier Transform spread OFDM, DFT-s-OFDM, symbol of an uplink transmission, the I/Q symbol repetitions being for application of an intra data symbol Orthogonal Cover Code, OCC, to the I/Q symbol repetitions; and transmitting an uplink transmission using the selected repetition mapping. ### Claim 2 (depends on 1) The method of claim 1 wherein the uplink transmission is a physical uplink channel transmission in an unlicensed spectrum. ### Claim 3 (depends on 1) The method of claim 1 wherein the uplink transmission is a New Radio Unlicensed, NR-U, physical uplink channel transmission. ### Claim 4 (depends on 1) The method of claim 1 wherein the OFDM or DFT-s-OFDM symbol is an OFDM symbol, and selecting the repetition mapping for the I/Q symbol repetitions comprises selecting a symbol repetition mapping as the repetition mapping for the I/Q symbol repetitions within the OFDM symbol of the uplink transmission. ### Claim 5 (depends on 1) The method of claim 1 wherein the OFDM or DFT-s-OFDM symbol is an OFDM symbol, and selecting the repetition mapping for the I/Q symbol repetitions comprises selecting a block repetition mapping as the repetition mapping for the I/Q symbol repetitions within the OFDM symbol of the uplink transmission. ### Claim 6 (depends on 1) The method of claim 1 wherein the OFDM or DFT-s-OFDM symbol is a DFT-s-OFDM symbol, and selecting the repetition mapping for the I/Q symbol repetitions comprises selecting a block repetition mapping as the repetition mapping for the I/Q symbol repetitions within the OFDM symbol of the uplink transmission. ### Claim 7 (depends on 1) The method of claim 1 wherein the OFDM or DFT-s-OFDM symbol is a DFT-s-OFDM symbol, and selecting the repetition mapping for the I/Q symbol repetitions comprises selecting a symbol repetition mapping as the repetition mapping for the I/Q symbol repetitions within the OFDM symbol of the uplink transmission. ### Claim 8 (depends on 1) The method of claim 1 wherein the uplink transmission is a Physical Uplink Control Channel, PUCCH, transmission. ### Claim 9 (depends on 1) The method of claim 1 wherein the I/Q symbol repetitions are within a single Physical Resource Block, PRB. ### Claim 10 (depends on 1) The method of claim 1 wherein the I/Q symbol repetitions are within two or more Physical Resource Blocks, PRBs. ### Claim 11 (depends on 1) The method of claim 1 wherein the I/Q symbol repetitions are repetitions of one or more I/Q data symbols. ### Claim 12 (depends on 1) The method of claim 1 wherein the I/Q symbol repetitions are repetitions of one or more I/Q symbols other than data symbols. ### Claim 13 (depends on 1) The method of claim 1 wherein selecting the repetition mapping for the I/Q symbol repetitions comprises selecting the repetition mapping for the I/Q symbol repetitions based on either or both of: a coderate or a payload size. ### Claim 14 (depends on 1) The method of claim 1 wherein the intra data symbol OCC is cycled over the frequency domain. ### Claim 15 (depends on 1) The method of claim 1 wherein the intra data symbol OCC is cycled over the frequency domain such that different OCCs are used for different subsets of a frequency range. ### Claim 16 (depends on 15) The method of claim 15 wherein the different OCCs used for different subsets of a frequency range for a first User Equipment, UE, are orthogonal to the different OCCs for a second UE in each subset of the frequency range. ### Claim 17 A wireless device for a cellular communications network, the wireless device adapted to: select a repetition mapping for In-Phase/Quadrature-Phase, I/Q, symbol repetitions within an Orthogonal Frequency Division Multiplexing, OFDM, or Discrete Fourier Transform spread OFDM, DFT-s-OFDM, symbol of an uplink transmission, the I/Q symbol repetitions being for application of an intra data symbol Orthogonal Cover Code, OCC, to the I/Q symbol repetitions; and transmit an uplink transmission using the selected repetition mapping. ### Claim 18 (depends on 17) The wireless device of claim 17 wherein the wireless device comprises: one or more transmitters; and processing circuitry associated with the one or more transmitters, the processing circuitry configured to cause the wireless device to: select the repetition mapping for I/Q symbol repetitions within the OFDM or DFT-s-OFDM symbol of the uplink transmission, the I/Q symbol repetitions being for application of an intra data symbol OCC to the I/Q symbol repetitions; and transmit an uplink transmission using the selected repetition mapping. ### Claim 19 A method performed by a base station, the method comprising: providing, to a wireless device, information that either: instructs the wireless device to use a particular repetition mapping for In-Phase/Quadrature-Phase, I/Q, symbol repetitions within an Orthogonal Frequency Division Multiplexing, OFDM, or Discrete Fourier Transform spread OFDM, DFT-s-OFDM, symbol of an uplink transmission, the I/Q symbol repetitions being for application of an intra data symbol Orthogonal Cover Code, OCC, to the I/Q symbol repetitions; or assists the wireless device with selection of a particular repetition mapping for I/Q symbol repetitions within an OFDM or DFT-s-OFDM symbol of an uplink transmission, the I/Q symbol repetitions being for application of an intra data symbol OCC to the I/Q symbol repetitions. ### Claim 20 (depends on 19) The method of claim 19 wherein the information comprises an instruction or configuration that instructs the wireless device to use a particular one of two or more predefined repetition mappings. ### Claim 21 A base station for a cellular communications network, the base station adapted to: provide, to a wireless device, information that either: instructs the wireless device to use a particular repetition mapping for In-Phase/Quadrature-Phase, I/Q, symbol repetitions within an Orthogonal Frequency Division Multiplexing, OFDM, or Discrete Fourier Transform spread OFDM, DFT-s-OFDM, symbol of an uplink transmission, the I/Q symbol repetitions being for application of an intra data symbol Orthogonal Cover Code, OCC, to the I/Q symbol repetitions; or assists the wireless device with selection of a particular repetition mapping for I/Q symbol repetitions within an OFDM or DFT-s-OFDM symbol of an uplink transmission, the I/Q symbol repetitions being for application of an intra data symbol OCC to the I/Q symbol repetitions. ### Claim 22 (depends on 21) The base station of claim 21 wherein the information comprises an instruction or configuration that instructs the wireless device to use a particular one of two or more predefined repetition mappings. ### Claim 23 (depends on 21) The base station of claim 21 wherein the base station comprises: processing circuitry configured to cause the base station to provide, to a wireless device, information that either: instructs the wireless device to use a particular repetition mapping for I/Q symbol repetitions within an OFDM or DFT-s-OFDM symbol of an uplink transmission, the I/Q symbol repetitions being for application of an intra data symbol OCC to the I/Q symbol repetitions; or assists the wireless device with selection of a particular repetition mapping for I/Q symbol repetitions within an OFDM or DFT-s-OFDM symbol of an uplink transmission, the I/Q symbol repetitions being for application of an intra data symbol OCC to the I/Q symbol repetitions.