# US 11,121,753 B2 · Method and device for receiving channel state information in mobile communication system > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,121,753 B2 - Document ID: US11121753B2 - Status: Granted - Kind: B2 - Application number: 16/323,462 - Filed: 2017-06-22 - Published: 2019-06-06 - Granted: 2021-09-14 - Earliest claimed: 2016-08-19 - Assignees: Samsung Electronics Co., Ltd. - Applicants: Samsung Electronics Co., Ltd. - Inventors: Youngwoo Kwak; Hoondong Noh - Web page: https://patentgrep.com/patent/US11121753B2 ## CPC - H04B 7/0626: {Channel coefficients, e.g. channel state information [CSI]} - H04B 7/0417: Feedback systems - H04B 7/06: at the transmitting station - H04B 7/0617: {for beam forming} - H04B 7/0639: {Using selective indices, e.g. of a codebook, e.g. pre-distortion matrix index [PMI] or for beam selection} - H04L 1/0026: {Transmission of channel quality indication} - H04L 1/0038: {Blind format detection (for detection of modulation format H04L27/0012)} - H04L 1/0693: {Partial feedback, e.g. partial channel state information [CSI]} - 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)} - H04L 5/0051: {of dedicated pilots, i.e. pilots destined for a single user or terminal} - H04B: TRANSMISSION - H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M) ## Abstract Disclosed is a 5G or pre-5G communication system for supporting a data transmission rate higher than that of a 4G communication system such as LTE. According to an embodiment of the present invention, a method for reporting channel state information of a terminal in a wireless communication system comprises the steps of: determining whether a resource for transmitting a reference signal for channel measurement overlaps with a resource for a specific type of transmission; generating channel state information on the basis of the determination result; and transmitting the generated channel state information to a base station. ## Claims ### Claim 1 A method performed by a terminal in a wireless communication system, the method comprising: receiving control information for configuring a measurement restriction from a base station; determining that there is an overlap between a resource for receiving a channel state information reference signal and a resource for a specific type of reception; generating channel state information based on overlapping resources corresponding to the determination result and the control information; and transmitting the generated channel state information to the base station. ### Claim 2 (depends on 1) The method of claim 1, wherein the determining that there is the overlap is performed based on a reception power or a sequence of the channel state information reference signal received by the terminal. ### Claim 3 (depends on 1) The method of claim 1, wherein determining that there is the overlap further comprises: receiving information on the specific type of reception from the base station, and wherein the determining that there is the overlap is based on the information on the specific type of reception. ### Claim 4 (depends on 1) The method of claim 1, wherein generating the channel state information further comprises: generating, first channel state information based on the channel state information reference signal received in a resource other than the overlapping resources; estimating second channel state information, which is channel state information associated with the overlapping resources, based on the first channel state information; and generating final channel state information based on the first channel state information and the second channel state information. ### Claim 5 (depends on 1) The method of claim 1, wherein generating the channel state information further comprises: generating first channel state information based on the channel state information reference signal received in a resource other than the overlapping resources; and transmitting the first channel state information to the base station. ### Claim 6 A method performed by a base station in a wireless communication system, the method comprising: determining whether there is an overlap between a resource for transmitting a channel state information reference signal and a resource for a specific type of transmission; generating control information for indicating to a terminal to report channel state information based on a measurement restriction and overlapping resources corresponding to the determination result; transmitting the generated control information to the terminal; and receiving the channel state information from the terminal corresponding to the control information. ### Claim 7 (depends on 6) The method of claim 6, wherein generating the control information further comprises: generating, in case that a level of the overlap is lower than or equal to a threshold, first control information that configures the measurement restriction in terms of time and frequency and indicates reporting of subband channel state information; and generating, in case that the level of the overlap is higher than the threshold, second control information that configures the measurement restriction in terms of time and indicates reporting of wideband channel state information. ### Claim 8 (depends on 6) The method of claim 6, wherein generating control information further comprises generating third control information that indicates a reset of channel state information obtained by the terminal. ### Claim 9 A terminal in a wireless communication system, comprising: a transceiver; and a controller coupled with the transceiver and configured to: receive control information for configuring a measurement restriction from a base station, determine that there is an overlap between a resource for receiving receive a channel state information reference signal and a resource for a specific type of reception, generate channel state information based on overlapping resources corresponding to the determination result and the control information, and transmit the generated channel state information to the base station. ### Claim 10 (depends on 9) The terminal of claim 9, wherein the controller is further configured to determine that there is the overlap based on a reception power or a sequence of the channel state information reference signal received by the terminal. ### Claim 11 (depends on 9) The terminal of claim 9, wherein the controller is further configured to receive information on the specific type of reception from the base station, and wherein the determining that there is the overlap is based on the information on the specific type of reception. ### Claim 12 (depends on 9) The terminal of claim 9, wherein the controller is further configured to: generate first channel state information based on the channel state information reference signal received in a resource other than the overlapping resources, estimate second channel state information, which is channel state information associated with the overlapping resources, based on the first channel state information, and generate final channel state information based on the first channel state information and the second channel state information. ### Claim 13 (depends on 9) The terminal of claim 9, wherein the controller is further configured to: generate first channel state information based on the channel state information reference signal received in a resource other than the overlapping resources, and transmit the first channel state information to the base station. ### Claim 14 A base station capable of receiving channel state information in a wireless communication system, comprising: a transceiver; and a controller coupled with the transceiver and configured to: determine whether there is an overlap between a resource for transmitting a channel state information reference signal and a resource for a specific type of transmission, generate control information for indicating to a terminal to report channel state information based on a measurement restriction and overlapping resources corresponding to the determination result; transmit the generated control information to the terminal, and receive the channel state information from the terminal corresponding to the control information. ### Claim 15 (depends on 14) The base station of claim 14, wherein the controller is further configured to: generating, in case that a level of the overlap between the resources is lower than or equal to a threshold, first control information that configures the measurement restriction in terms of time and frequency and indicates reporting of subband channel state information; generating, in case that the level of the overlap between the resources is higher than the threshold, second control information that configures the measurement restriction in terms of time and indicates reporting of wideband channel state information. ### Claim 16 (depends on 14) The base station of claim 14, wherein the controller is further configured to generate third control information that indicates a reset of channel state information obtained by the terminal.