# US 2017/0289918 A1 · Power allocation method and communications device > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2017/0289918 A1 - Document ID: US20170289918A1 - Status: Published application - Kind: A1 - Application number: 15/630,229 - Filed: 2017-06-22 - Published: 2017-10-05 - Earliest claimed: 2014-12-23 - Assignees: Huawei Technologies Co., Ltd. - Applicants: Huawei Technologies Co., Ltd. - Inventors: Wei SUN; Yongxia LYU; Ronghui WEN - Web page: https://patentgrep.com/patent/US20170289918A1 ## CPC - H04W 52/143: {Downlink power control} - H04W 52/325: {Power control of control or pilot channels} - H04W 52/30: using constraints in the total amount of available transmission power - Y02D 30/70: in wireless communication networks - H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72) - Y02D: CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE ## Abstract Embodiments of the present invention provide a power allocation method and a communications device. The power allocation method includes: determining, by a first communications device, a first power control parameter group, where the first power control parameter group includes information used to indicate a transmit power of the first communications device in a first-type subframe, and sending, by the first communications device, a signal only on a downlink frequency resource in the first-type subframe; and determining, by the first communications device, a second power control parameter group, where the second power control parameter group includes information used to indicate a transmit power of the first communications device in a second-type subframe, and sending, by the first communications device, signals on both a downlink frequency resource and an uplink frequency resource in the second-type subframe. ## Claims ### Claim 1 A communications device, comprising: a processing module and a sending module, wherein the processing module is configured to: determine a first power control parameter group, wherein the first power control parameter group comprises information used to indicate a transmit power of the sending module in a first-type subframe, and the sending module sends a signal only on a preset downlink frequency resource in the first-type subframe; and determine a second power control parameter group, wherein the second power control parameter group comprises information used to indicate a transmit power of the sending module in a second-type subframe, and the sending module sends signals on both a downlink frequency resource and an uplink frequency resource that are preset in the second-type subframe. ### Claim 2 (depends on 1) The communications device according to claim 1, wherein the second power control parameter group comprises a third power control parameter group and a fourth power control parameter group, wherein the third power control parameter group comprises information used to indicate a transmit power of the sending module on a downlink frequency resource in the second-type subframe, and the fourth power control parameter group comprises information used to indicate a transmit power of the sending module on an uplink frequency resource in the second-type subframe. ### Claim 3 (depends on 2) The communications device according to claim 2, wherein the third power control parameter group comprises information used to indicate a transmit power of the sending module for a data signal in a symbol that comprises a reference signal and that is on the downlink frequency resource in the second-type subframe, and information used to indicate a transmit power of the sending module for a data signal in a symbol that does not comprise a reference signal and that is on the downlink frequency resource in the second-type subframe. ### Claim 4 (depends on 2) The communications device according to claim 2, wherein if a reference signal is comprised on the uplink frequency resource in the second-type subframe, the fourth power control parameter group comprises: information used to indicate a transmit power of the sending module for a reference signal on the uplink frequency resource in the second-type subframe, information used to indicate a transmit power of the sending module for a data signal in a symbol that comprises a reference signal and that is on the uplink frequency resource in the second-type subframe, and information used to indicate a transmit power of the sending module for a data signal in a symbol that does not comprise a reference signal and that is on the uplink frequency resource in the second-type subframe; or if a reference signal is not comprised at an uplink frequency resource in the second-type subframe, the fourth power control parameter group comprises information used to indicate a transmit power of the sending module for a data signal on the uplink frequency resource in the second-type subframe. ### Claim 5 (depends on 1) The communications device according to claim 1, wherein the transmit power of the sending module in the first-type subframe is equal to the transmit power of the sending module in the second-type subframe. ### Claim 6 (depends on 2) The communications device according to claim 2, wherein the transmit power of the sending module in the first-type subframe is equal to the transmit power of the sending module on the downlink frequency resource in the second-type subframe; and the third power control parameter group is the same as the first power control parameter group. ### Claim 7 (depends on 6) The communications device according to claim 6, wherein if a reference signal is comprised on the uplink frequency resource in the second-type subframe, the fourth power control parameter group comprises: the information used to indicate a transmit power of the sending module for a reference signal on the uplink frequency resource in the second-type subframe, or the information used to indicate a transmit power of the sending module for a reference signal on the uplink frequency resource in the second-type subframe and information used to indicate a difference from or a ratio to a transmit power of the sending module for a reference signal in the first-type subframe; or if a reference signal is not comprised on the uplink frequency resource in the second-type subframe, the fourth power control parameter group comprises: the information used to indicate a transmit power of the sending module for a data signal on the uplink frequency resource in the second-type subframe, or the information used to indicate a transmit power of the sending module for a data signal on the uplink frequency resource in the second-type subframe and information used to indicate a difference from or a ratio to a transmit power of the sending module for a data signal in the first-type subframe. ### Claim 8 (depends on 1) The communications device according to claim 1, wherein the first power control parameter group comprises: information used to indicate a transmit power of the sending module for a data signal in a symbol that comprises a reference signal and that is in the first-type subframe, and information used to indicate a transmit power of the sending module for a data signal in a symbol that does not comprise a reference signal and that is in the first-type subframe; or the first power control parameter group comprises: information used to indicate a transmit power of the sending module for a reference signal in the first-type subframe, information used to indicate a transmit power of the sending module for a data signal in a symbol that comprises a reference signal and that is in the first-type subframe, and information used to indicate a transmit power of the sending module for a data signal in a symbol that does not comprise a reference signal and that is in the first-type subframe. ### Claim 9 (depends on 1) The communications device according to of claim 1, wherein the sending module is further configured to: send the first power control parameter group to a second communications device; and send the second power control parameter group to the second communications device. ### Claim 10 A communications device, comprising: a receiving module, configured to: receive a first power control parameter group sent by a first communications device, wherein the first power control parameter group comprises information used to indicate a transmit power of the first communications device in a first-type subframe, and the first communications device sends a signal only on a downlink frequency resource in the first-type subframe; and receive a second power control parameter group sent by the first communications device, wherein the second power control parameter group comprises information used to indicate a transmit power of the first communications device in a second-type subframe, and the first communications device sends signals on both a downlink frequency resource and an uplink frequency resource in the second-type subframe; and a processing module, configured to: determine the transmit power of the first communications device in the first-type subframe; and determine the transmit power of the first communications device in the second-type subframe. ### Claim 11 (depends on 10) The communications device according to claim 10, wherein the second power control parameter group comprises a third power control parameter group and a fourth power control parameter group, wherein the third power control parameter group comprises information used to indicate a transmit power of the first communications device on a downlink frequency resource in the second-type subframe, and the fourth power control parameter group comprises information used to indicate a transmit power of the first communications device on an uplink frequency resource in the second-type subframe. ### Claim 12 (depends on 11) The communications device according to claim 11, wherein the third power control parameter group comprises information used to indicate a transmit power of the first communications device for a data signal in a symbol that comprises a reference signal and that is on the downlink frequency resource in the second-type subframe, and information used to indicate a transmit power of the first communications device for a data signal in a symbol that does not comprise a reference signal and that is on the downlink frequency resource in the second-type subframe. ### Claim 13 (depends on 11) The communications device according to claim 11, wherein if a reference signal is comprised on the uplink frequency resource in the second-type subframe, the fourth power control parameter group comprises: information used to indicate a transmit power of the first communications device for a reference signal on the uplink frequency resource in the second-type subframe, information used to indicate a transmit power of the first communications device for a data signal in a symbol that comprises a reference signal and that is on the uplink frequency resource in the second-type subframe, and information used to indicate a transmit power of the first communications device for a data signal in a symbol that does not comprise a reference signal and that is on the uplink frequency resource in the second-type subframe; or if a reference signal is not comprised at an uplink frequency in the second-type subframe, the fourth power control parameter group comprises information used to indicate a transmit power of the first communications device for a data signal on the uplink frequency resource in the second-type subframe. ### Claim 14 (depends on 10) The communications device according to claim 10, wherein the transmit power of the first communications device in the first-type subframe is equal to the transmit power of the first communications device in the second-type subframe. ### Claim 15 (depends on 11) The communications device according to claim 11, wherein the transmit power of the first communications device in the first-type subframe is equal to the transmit power of the first communications device on the downlink frequency resource in the second-type subframe; and the third power control parameter group is the same as the first power control parameter group. ### Claim 16 (depends on 15) The communications device according to claim 15, wherein if a reference signal is comprised on the uplink frequency resource in the second-type subframe, the fourth power control parameter group comprises: the information used to indicate a transmit power of the first communications device for a reference signal on the uplink frequency resource in the second-type subframe, or the information used to indicate a transmit power of the first communications device for a reference signal on the uplink frequency resource in the second-type subframe and information used to indicate a difference from or a ratio to a transmit power of the first communications device for a reference signal in the first-type subframe; or if a reference signal is not comprised on the uplink frequency resource in the second-type subframe, the fourth power control parameter group comprises: the information used to indicate a transmit power of the first communications device for a data signal on the uplink frequency resource in the second-type subframe, or the information used to indicate a transmit power of the first communications device for a data signal on the uplink frequency resource in the second-type subframe and information used to indicate a difference from or a ratio to a transmit power of the first communications device for a data signal in the first-type subframe. ### Claim 17 (depends on 10) The communications device according to claim 10, wherein the first power control parameter group comprises: information used to indicate a transmit power of the first communications device for a data signal in a symbol that comprises a reference signal and that is in the first-type subframe, and information used to indicate a transmit power of the first communications device for a data signal in a symbol that does not comprise a reference signal and that is in the first-type subframe; or the first power control parameter group comprises: information used to indicate a transmit power of the first communications device for a reference signal in the first-type subframe, information used to indicate a transmit power of the first communications device for a data signal in a symbol that comprises a reference signal and that is in the first-type subframe, and information used to indicate a transmit power of the first communications device for a data signal in a symbol that does not comprise a reference signal and that is in the first-type subframe. ### Claim 18 A power allocation method, comprising: determining, by a first communications device, a first power control parameter group, wherein the first power control parameter group comprises information used to indicate a transmit power of the first communications device in a first-type subframe, and sending, by the first communications device, a signal only on a downlink frequency resource in the first-type subframe; and determining, by the first communications device, a second power control parameter group, wherein the second power control parameter group comprises information used to indicate a transmit power of the first communications device in a second-type subframe, and sending, by the first communications device, signals on both a downlink frequency resource and an uplink frequency resource in the second-type subframe. ### Claim 19 (depends on 18) The method according to claim 18, wherein the second power control parameter group comprises a third power control parameter group and a fourth power control parameter group, wherein the third power control parameter group comprises information used to indicate a transmit power of the first communications device on a downlink frequency resource in the second-type subframe, and the fourth power control parameter group comprises information used to indicate a transmit power of the first communications device on an uplink frequency resource in the second-type subframe. ### Claim 20 (depends on 19) The method according to claim 19, wherein the third power control parameter group comprises information used to indicate a transmit power of the first communications device for a data signal in a symbol that comprises a reference signal and that is on the downlink frequency resource in the second-type subframe, and information used to indicate a transmit power of the first communications device for a data signal in a symbol that does not comprise a reference signal and that is on the downlink frequency resource in the second-type subframe.