# US 10,484,985 B2 · Terminal, base station, transmission method, and reception method > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,484,985 B2 - Document ID: US10484985B2 - Status: Granted - Kind: B2 - Application number: 16/144,770 - Filed: 2018-09-27 - Published: 2019-01-31 - Granted: 2019-11-19 - Earliest claimed: 2014-05-09 - Assignees: Panasonic Intellectual Property Corporation of America - Applicants: Panasonic Intellectual Property Corporation of America - Inventors: Tetsuya Yamamoto; Hidetoshi Suzuki; Alexander Golitschek Edler von Elbwart; Seigo Nakao - Web page: https://patentgrep.com/patent/US10484985B2 ## CPC - H04W 72/23: in the downlink direction of a wireless link, i.e. towards a terminal - H04B 1/707: using direct sequence modulation - H04J 11/00: Orthogonal multiplex systems, {e.g. using WALSH codes}(H04J13/00 takes precedence) - H04J 13/004: {Orthogonal} - H04J 13/0074: {Code shifting or hopping} - H04J 13/18: Allocation of orthogonal codes - H04L 1/08: by repeating transmission, e.g. Verdan system {(H04L1/1858 and H04L1/189 take precedence)} - H04W 4/30: Services specially adapted for particular environments, situations or purposes - H04W 4/70: Services for machine-to-machine communication [M2M] or machine type communication [MTC] - H04W 72/04: Wireless resource allocation - H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72) - H04B: TRANSMISSION - H04J: MULTIPLEX COMMUNICATION (transmission in general H04B; peculiar to transmission of digital information H04L5/00; systems for the simultaneous or sequential transmission of more than one television signal H04N7/08; in exchanges H04Q11/00; stereophonic systems H04S) - H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M) ## Abstract A plurality of the same signals to be repetitively transmitted over multiple subframes are multiplied, in each subframe, by one of components of one sequence of a plurality of orthogonal sequences orthogonal to each other thereby generating a transmission signal. The generated transmission signal is transmitted. ## Claims ### Claim 1 A terminal comprising: a generator that generates a transmission signal repetitively over multiple subframes by multiplying, in each subframe, a signal by one of components of one sequence of a plurality of first sequences orthogonal to each other; and a transmitter that transmits the transmission signal over the multiple subframes, wherein the plurality of first sequences are respectively associated with terminal IDs, and the generator sets, as the one sequence used by the terminal, a sequence included in the plurality of first sequences and corresponding to a terminal ID indicated by a base station. ### Claim 2 (depends on 1) The terminal according to claim 1, wherein the signal is a response signal, and wherein the terminal further comprises a first spreader that performs primary spreading on the response signal by using one of a plurality of second sequences defined by different cyclic shift indexes; and a second spreader that performs secondary spreading on the response signal having been subjected to the primary spreading by using one of a plurality of third sequences orthogonal to each other in a subframe, wherein the generator generates the transmission signal by multiplying, in each subframe, the secondarily-spread response signal by one of components of the one sequence. ### Claim 3 (depends on 1) The terminal according to claim 1, further comprising a receiver that receives information indicating the one sequence used by the terminal, the information allocated to part or all of a field for use for indication of control information of a downlink control channel. ### Claim 4 (depends on 3) The terminal according to claim 3, wherein the control information is resource allocation information, MCS information, HARQ process information, transmission mode information, or transmission power control information. ### Claim 5 (depends on 1) The terminal according to claim 1, further comprising a receiver that receives, using a higher layer, information indicating the one sequence used by the terminal. ### Claim 6 (depends on 1) The terminal according to claim 1, further comprising a receiver that receives information indicating the one sequence used by the terminal, the information allocated to a field that is an unused one of fields for use in indicating downlink allocation control information requesting the terminal to transmit a random access signal. ### Claim 7 (depends on 1) The terminal according to claim 1, wherein a number of the repetitions is an integer multiple of a period of a subframe from which the repetitions may start, and a sequence length of the first sequence is equal to said period. ### Claim 8 (depends on 1) The terminal according to claim 1, wherein a sequence length of the first sequence is equal to a number of the repetitions. ### Claim 9 A transmission method comprising: generating a transmission signal repetitively over multiple subframes by multiplying, in each subframe, a signal by one of components of one sequence of a plurality of first sequences orthogonal to each other; and transmitting the transmission signal over the multiple subframes, wherein the plurality of first sequences are respectively associated with terminal IDs, and the generating step includes setting, as the one sequence used by the terminal, a sequence included in the plurality of first sequences and corresponding to a terminal ID indicated by a base station. ### Claim 10 (depends on 9) The transmission method according to claim 9, wherein the signal is a response signal, and wherein the transmission method further comprises primarily spreading the response signal by using one of a plurality of second sequences defined by different cyclic shift indexes; and secondarily spreading the response signal having been subjected to the primary spreading by using one of a plurality of third sequences orthogonal to each other in a subframe; and wherein the generating step includes generating the transmission signal by multiplying, in each subframe, the secondarily-spread response signal by one of components of the one sequence. ### Claim 11 (depends on 9) The transmission method according to claim 9, further comprising: receiving information indicating the one sequence used in the generating step, the information allocated to part or all of a field for use for indication of control information of a downlink control channel. ### Claim 12 (depends on 11) The transmission method according to claim 11, wherein the control information is resource allocation information, MCS information, HARQ process information, transmission mode information, or transmission power control information. ### Claim 13 (depends on 9) The transmission method according to claim 9, further comprising: receiving, using a higher layer, information indicating the one sequence used in the generating step. ### Claim 14 (depends on 9) The transmission method according to claim 9, further comprising: receiving information indicating the one sequence used in the generating step, the information allocated to a field that is an unused one of fields for use in indicating downlink allocation control information requesting a terminal to transmit a random access signal. ### Claim 15 (depends on 9) The transmission method according to claim 9, wherein a number of the repetitions is an integer multiple of a period of a subframe from which the repetitions may start, and a sequence length of the first sequence is equal to said period. ### Claim 16 (depends on 9) The transmission method according to claim 9, wherein a sequence length of the first sequence is equal to a number of the repetitions. ### Claim 17 A base station comprising: a receiver that receives a signal repetitively transmitted over multiple subframes from a terminal, the signal having been multiplied by the terminal, in each subframe, by one of components of one sequence of a plurality of first sequences orthogonal to each other; and a combiner that generates a combined signal by combining signals of the multiple subframes using the one sequence, wherein the plurality of first sequences are respectively associated with terminal IDs, and the one sequence used by the terminal and used in the generating step is a sequence included in the plurality of first sequences and corresponding to a terminal ID notified to the terminal by the base station. ### Claim 18 (depends on 17) The base station according to claim 17, wherein a number of the repetitions is an integer multiple of a period of a subframe from which the repetitions may start, and a sequence length of the first sequence is equal to said period. ### Claim 19 A reception method comprising: receiving a signal repetitively transmitted over multiple subframes from a terminal, the signal having been multiplied by the terminal, in each subframe, by one of components of one sequence of a plurality of first sequences orthogonal to each other; and generating a combined signal by combining signals of the multiple subframes using the one sequence, wherein the plurality of first sequences are respectively associated with terminal IDs, and the one sequence used by the terminal and used in the generating step is a sequence included in the plurality of first sequences and corresponding to a terminal ID associated with the terminal. ### Claim 20 (depends on 19) The reception method according to claim 19, wherein a number of the repetitions is an integer multiple of a period of a subframe from which the repetitions may start, and a sequence length of the first sequence is equal to said period.