# US 2019/0357243 A1 · User terminal and radio communication method > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2019/0357243 A1 - Document ID: US20190357243A1 - Status: Published application - Kind: A1 - Application number: 16/483,334 - Filed: 2018-02-02 - Published: 2019-11-21 - Earliest claimed: 2017-02-03 - Assignees: Ntt Docomo, Inc. - Applicants: Ntt Docomo, Inc. - Inventors: Kazuki Takeda; Shimpei Yasukawa; Satoshi Nagata; Xiaohang Chen; Qun Zhao - Web page: https://patentgrep.com/patent/US20190357243A1 ## CPC - H04W 52/146: {Uplink power control} - H04W 72/1268: of uplink data flows - H04W 52/54: Signalisation aspects of the TPC commands, e.g. frame structure - H04W 72/21: in the uplink direction of a wireless link, i.e. towards the network - H04W 52/281: {taking into account user or data type priority} - H04W 72/0473: {the resource being transmission power} - H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72) ## Abstract The present invention is designed to provide a user terminal and a radio communication method, whereby adequate communication can be performed when contention-based UL transmission is employed. A user terminal according to the present invention has a transmission section that transmits UL data and a reference signal without a UL transmission command from a radio base station, and control section that controls transmission of the UL data and the reference signal, and the control section applies a reference signal that can identify the user terminal, as the reference signal, and controls transmission of the UL data and the reference signal by using predetermined resources that are configured in advance. ## Claims ### Claim at position 1 -7. (canceled) ### Claim 8 A terminal comprising: a transmission section that performs UL data transmission without a UL transmission command from a radio base station and performs UL data transmission in accordance with a UL transmission command from the radio base station; and a control section that controls so that a transmission power parameter of the UL data transmission without the UL transmission command and a transmission power parameter of the UL data transmission in accordance with the UL transmission command are different from each other. ### Claim 9 (depends on 8) The terminal according to claim 8, wherein the UL data transmission in accordance with the UL transmission command is applied with fractional transmission power control. ### Claim 10 (depends on 9) The terminal according to claim 9, wherein the UL data transmission without the UL transmission command and the UL data transmission in accordance with the UL transmission command are configured to have different transmission power control parameters α. ### Claim 11 (depends on 8) The terminal according to claim 8, wherein resource allocation for the UL data transmission without the UL transmission command is provided by RRC. ### Claim 12 (depends on 8) The terminal according to claim 8, wherein resource allocation for the UL data transmission without the UL transmission command is provided by downlink control information. ### Claim 13 (depends on 8) The terminal according to claim 8, wherein in the UL data transmission without the UL transmission command, reference signal configuration for the UL data transmission in accordance with the UL transmission command and reference signal configuration for the UL data transmission without the UL transmission command are different from each other. ### Claim 14 A radio communication method comprising: performing UL data transmission without a UL transmission command from a radio base station and performing UL data transmission in accordance with a UL transmission command from the radio base station, and controlling so that a transmission power parameter of the UL data transmission without the UL transmission command and a transmission power parameter of the UL data transmission in accordance with the UL transmission command are different from each other. ### Claim 15 (depends on 9) The terminal according to claim 9, wherein resource allocation for the UL data transmission without the UL transmission command is provided by RRC. ### Claim 16 (depends on 9) The terminal according to claim 9, wherein resource allocation for the UL data transmission without the UL transmission command is provided by downlink control information. ### Claim 17 (depends on 9) The terminal according to claim 9, wherein in the UL data transmission without the UL transmission command, reference signal configuration for the UL data transmission in accordance with the UL transmission command and reference signal configuration for the UL data transmission without the UL transmission command are different from each other. ### Claim 18 (depends on 10) The terminal according to claim 10, wherein resource allocation for the UL data transmission without the UL transmission command is provided by RRC. ### Claim 19 (depends on 10) The terminal according to claim 10, wherein resource allocation for the UL data transmission without the UL transmission command is provided by downlink control information. ### Claim 20 (depends on 10) The terminal according to claim 10, wherein in the UL data transmission without the UL transmission command, reference signal configuration for the UL data transmission in accordance with the UL transmission command and reference signal configuration for the UL data transmission without the UL transmission command are different from each other. ### Claim 21 (depends on 11) The terminal according to claim 11, wherein in the UL data transmission without the UL transmission command, reference signal configuration for the UL data transmission in accordance with the UL transmission command and reference signal configuration for the UL data transmission without the UL transmission command are different from each other. ### Claim 22 (depends on 12) The terminal according to claim 12, wherein in the UL data transmission without the UL transmission command, reference signal configuration for the UL data transmission in accordance with the UL transmission command and reference signal configuration for the UL data transmission without the UL transmission command are different from each other.