# US 12,004,155 B2 · Mobile station, 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 12,004,155 B2 - Document ID: US12004155B2 - Status: Granted - Kind: B2 - Application number: 17/421,351 - Filed: 2019-09-12 - Published: 2021-12-23 - Granted: 2024-06-04 - Earliest claimed: 2019-01-09 - Assignees: Panasonic Intellectual Property Corporation of America - Applicants: Panasonic Intellectual Property Corporation of America - Inventors: Shotaro Maki; Takashi Iwai; Tomofumi Takata - Web page: https://patentgrep.com/patent/US12004155B2 ## CPC - H04W 72/1268: of uplink data flows - H04L 1/0051: {Stopping criteria} - H04L 5/0044: {Allocation of payload; Allocation of data channels, e.g. PDSCH or PUSCH} - H04L 5/0051: {of dedicated pilots, i.e. pilots destined for a single user or terminal} - H04L 5/0094: {Indication of how sub-channels of the path are allocated} - H04W 16/14: Spectrum sharing arrangements {between different networks} - H04W 72/0453: Resources in frequency domain, e.g. a carrier in FDMA - H04W 72/20: Control channels or signalling for resource management - H04W 72/23: in the downlink direction of a wireless link, i.e. towards a terminal - H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72) - H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M) ## Abstract Provided is a mobile station that can appropriately allocate resources in an unlicensed band. In the mobile station (200), on the basis of resource association between an uplink reference signal and another uplink signal different from the reference signal, a control unit (205) determines a frequency resource to be used for uplink transmission. A transmission unit (209) uses the frequency resource to transmit at least one of the reference signal and the other uplink signal. ## Claims ### Claim 1 A mobile station, comprising: reception circuitry, which, in operation, receives control information relating to a resource used for an uplink signal or a sidelink signal other than a reference signal; control circuitry, which, in operation, determines the resource used for the uplink signal or the sidelink signal based on the control information, and determines a resource used for the reference signal, wherein the resource used for the reference signal is determined based on the resource used for the uplink signal or the sidelink signal in a first case, the resource of the reference signal when the control information indicates a first resource of the uplink signal or the sidelink signal being different from the resource of the reference signal when the control information indicates a second resource of the uplink signal or the sidelink signal, wherein the resource used for the reference signal is determined without using the resource of the uplink signal or the sidelink signal in a second case which is different from the first case; and transmission circuitry, which, in operation, transmits at least the reference signal. ### Claim 2 (depends on 1) The mobile station according to claim 1, wherein, the transmission circuitry, in operation, transmits the reference signal within a slot and transmits the uplink signal or the sidelink signal within the slot. ### Claim 3 (depends on 1) The mobile station according to claim 1, wherein, the resource to which the reference signal is mapped is at least one of resources indicated by another control information. ### Claim 4 (depends on 3) The mobile station according to claim 3, wherein, when a parameter of the reference signal is a specific value, the resource to which the reference signal is mapped is the at least one of the resources, and a resource other than the resource used for an uplink signal or a sidelink signal is determined based on the specific value, the resource to which the reference signal is mapped being configured for the reference signal. ### Claim 5 (depends on 3) The mobile station according to claim 3, wherein the resource to which the reference signal is mapped is the at least one of the resources, when the reference signal is mapped to a temporal position prior to the temporal position of the uplink signal or the sidelink signal, and when a period of performing carrier sensing is longer than a threshold. ### Claim 6 (depends on 3) The mobile station according to claim 3, wherein the resource to which the reference signal is mapped is the at least one of the resources, when the reference signal is mapped to a temporal position prior to the temporal position of the uplink signal or the sidelink signal, and when carrier sensing has failed. ### Claim 7 A transmission method, comprising: receiving control information relating to a resource used for an uplink signal or a sidelink signal other than a reference signal; determining the resource used for the uplink signal or the sidelink signal based on the control information, and determining a resource used for the reference signal, wherein the resource used for the reference signal is determined based on the resource used for the uplink signal or the sidelink signal in a first case, the resource of the reference signal when the control information indicates a first resource of the uplink signal or the sidelink signal being different from the resource of the reference signal when the control information indicates a second resource of the uplink signal or the sidelink signal, wherein the resource used for the reference signal is determined without using the resource of the uplink signal or the sidelink signal in a second case which is different from the first case; and transmitting at least the reference signal.