# US 12,004,207 B2 · Method, device, and system for notifying information about power difference > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,004,207 B2 - Document ID: US12004207B2 - Status: Granted - Kind: B2 - Application number: 17/332,515 - Filed: 2021-05-27 - Published: 2021-09-16 - Granted: 2024-06-04 - Earliest claimed: 2018-11-29 - Assignees: Huawei Technologies Co., Ltd. - Applicants: Huawei Technologies Co., Ltd. - Inventors: Fengwei Liu; Lei Chen; Jing Qiu - Web page: https://patentgrep.com/patent/US12004207B2 ## CPC - H04L 5/0048: {Allocation of pilot signals, i.e. of signals known to the receiver (allocation of control signalling H04L5/0053; use of control signalling H04L5/0091)} - H04W 72/54: based on quality criteria - H04B 7/0626: {Channel coefficients, e.g. channel state information [CSI]} - H04W 52/262: {taking into account adaptive modulation and coding [AMC] scheme} - H04W 52/325: {Power control of control or pilot channels} - H04W 52/143: {Downlink power control} - Y02D 30/70: in wireless communication networks - 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) - H04B: TRANSMISSION - 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 disclosure disclose example network device, terminal device, and method for notifying information about a power difference. One example network device includes one or more processors performing operations that include determining first information and sending, by a transceiver of the network device, the first information to a terminal device. The first information indicates a first power difference that is associated with a first waveform. The first power difference is an offset between a power of a reference signal and a power of a first physical downlink shared channel (PDSCH) on which the first waveform is used. ## Claims ### Claim 1 A network device, comprising: a transceiver; and one or more processors in communication with the transceiver and to a non-transitory memory storage, wherein the one or more processors execute computer-executable instructions of the non-transitory memory storage to cause the one or more processors to perform operations comprising: determining first information, wherein: the first information is used to indicate a first power difference, the first power difference is associated with a first waveform, and the first power difference comprises an offset between a power of a reference signal and a power of a first physical downlink shared channel (PDSCH) on which the first waveform is used; and the first information is used to indicate a plurality of power differences, and at least two of the plurality of power differences correspond to different waveforms; and sending, by the transceiver, the first information to a terminal device. ### Claim 2 (depends on 1) The network device according to claim 1, wherein the first waveform comprises a single-carrier waveform or a multi-carrier waveform. ### Claim 3 (depends on 1) The network device according to claim 1, wherein the operations further comprise: sending, by the transceiver, second information to the terminal device, wherein the second information is used to indicate waveform information corresponding to channel state information (CSI) to be reported by the terminal device; or receiving, by the transceiver, third information from the terminal device, wherein the third information is used to indicate the waveform information corresponding to the CSI to be reported by the terminal device. ### Claim 4 (depends on 1) The network device according to claim 1, wherein the operations further comprise: receiving, by the transceiver, channel state information (CSI) from the terminal device, wherein the CSI is determined based on the first power difference. ### Claim 5 (depends on 1) The network device according to claim 1, wherein the operations further comprise: performing, by the transceiver, downlink transmission based on the first power difference. ### Claim 6 A terminal device, comprising: a transceiver; and one or more processors in communication with the transceiver and to a non-transitory memory storage, wherein the one or more processors execute computer-executable instructions of the non-transitory memory storage to cause the one or more processors to perform operations comprising: receiving, by the transceiver, first information from a network device, wherein: the first information is used to indicate a first power difference, the first power difference is associated with a first waveform, and the first power difference comprises an offset between a power of a reference signal and a power of a first physical downlink shared channel (PDSCH) on which the first waveform is used; and the first information is used to indicate a plurality of power differences, and at least two of the plurality of power differences correspond to different waveforms; and obtaining the first power difference. ### Claim 7 (depends on 6) The terminal device according to claim 6, wherein the first waveform comprises a single-carrier waveform or a multi-carrier waveform. ### Claim 8 (depends on 6) The terminal device according to claim 6, wherein the operations further comprise: receiving, by the transceiver, second information from the network device, wherein the second information is used to indicate waveform information corresponding to channel state information (CSI) to be reported by the terminal device; or sending, by the transceiver, third information to the network device, wherein the third information is used to indicate the waveform information corresponding to the CSI to be reported by the terminal device. ### Claim 9 (depends on 6) The terminal device according to claim 6, wherein the operations further comprise: determining channel state information (CSI) based on the first power difference; and sending, by the transceiver, the CSI to the network device. ### Claim 10 (depends on 6) The terminal device according to claim 6, wherein the operations further comprise: receiving, by the transceiver and based on the first power difference, downlink transmission from the network device. ### Claim 11 (depends on 6) The terminal device according to claim 6, wherein: if the first waveform comprises a single-carrier waveform, the first power difference is associated with the first waveform and a first modulation scheme, and the first power difference comprises an offset between the power of the reference signal and a power of a first PDSCH on which the first waveform and the first modulation scheme are used. ### Claim 12 (depends on 6) The terminal device according to claim 6, wherein: the first information comprises information about a second power difference and information about a third power difference, the second power difference is associated with a second waveform, the second power difference comprises an offset between the power of the reference signal and a power of a second PDSCH on which the second waveform is used, the third power difference comprises an offset between the power of the first PDSCH and the power of the second PDSCH, and the first power difference is determined based on the second power difference and the third power difference. ### Claim 13 (depends on 6) The terminal device according to claim 6, wherein: the first information comprises information about a second power difference, the second power difference is associated with a second waveform, the second power difference comprises an offset between the power of the reference signal and a power of a second PDSCH on which the second waveform is used, the first power difference is determined based on the second power difference and a third power difference, and the third power difference comprises an offset between the power of the first PDSCH and the power of the second PDSCH. ### Claim 14 (depends on 6) The terminal device according to claim 6, wherein: the first information comprises information about a fourth power difference and information about a fifth power difference, the fourth power difference is associated with the first waveform and a second modulation scheme, the fourth power difference comprises an offset between the power of the reference signal and a power of a third PDSCH on which the first waveform and the second modulation scheme are used, the fifth power difference comprises an offset between the power of the first PDSCH and the power of the third PDSCH, and the first power difference is determined based on the fourth power difference and the fifth power difference. ### Claim 15 (depends on 6) The terminal device according to claim 6, wherein: the first information comprises information about a fourth power difference, the fourth power difference is associated with the first waveform and a second modulation scheme, the fourth power difference comprises an offset between the power of the reference signal and a power of a third PDSCH on which the first waveform and the second modulation scheme are used, the first power difference is determined based on the fourth power difference and a fifth power difference, and the fifth power difference comprises an offset between the power of the first PDSCH and the power of the third PDSCH. ### Claim 16 A method for notifying information about a power difference, comprising: determining, by a network device, first information, wherein: the first information is used to indicate a first power difference, the first power difference is associated with a first waveform, and the first power difference comprises an offset between a power of a reference signal and a power of a first physical downlink shared channel (PDSCH) on which the first waveform is used; and the first information is used to indicate a plurality of power differences, and at least two of the plurality of power differences correspond to different waveforms; and sending, by the network device, the first information to a terminal device. ### Claim 17 (depends on 16) The method according to claim 16, wherein the method further comprises: sending, by the network device, second information to the terminal device, wherein the second information is used to indicate waveform information corresponding to channel state information (CSI) to be reported by the terminal device; or receiving, by the network device, third information from the terminal device, wherein the third information is used to indicate the waveform information corresponding to the CSI to be reported by the terminal device. ### Claim 18 A method for notifying information about a power difference, comprising: receiving, by a terminal device, first information from a network device, wherein: the first information is used to indicate a first power difference, the first power difference is related to a first waveform, and the first power difference is an offset between a power of a reference signal and a power of a first physical downlink shared channel PDSCH on which the first waveform is used; and the first information is used to indicate a plurality of power differences, and at least two of the plurality of power differences correspond to different waveforms; and obtaining, by the terminal device, the first power difference. ### Claim 19 (depends on 18) The method according to claim 18, wherein the first waveform comprises a single-carrier waveform or a multi-carrier waveform. ### Claim 20 (depends on 18) The method according to claim 18, wherein the method further comprises: receiving, by the terminal device, second information from the network device, wherein the second information is used to indicate waveform information corresponding to CSI that needs to be reported by the terminal device; or sending, by the terminal device, third information to the network device, wherein the third information is used to indicate waveform information corresponding to CSI to be reported by the terminal device.