# US 2019/0320397 A1 · Method and device for signal detection > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2019/0320397 A1 - Document ID: US20190320397A1 - Status: Published application - Kind: A1 - Application number: 16/309,364 - Filed: 2016-07-01 - Published: 2019-10-17 - Earliest claimed: 2016-07-01 - Assignees: Guangdong Oppo Mobile Telecommunications Corp., Ltd. - Applicants: Guangdong Oppo Mobile Telecommunications Corp., Ltd. - Inventors: Hai TANG - Web page: https://patentgrep.com/patent/US20190320397A1 ## CPC - H04W 56/00: Synchronisation arrangements - H04L 5/0094: {Indication of how sub-channels of the path are allocated} - H04L 9/40: Network security protocols - H04W 24/10: Scheduling measurement reports {; Arrangements for measurement reports} - H04W 56/001: {Synchronization between nodes} - H04W 56/0065: {using measurement of signal travel time} - H04W 76/11: Allocation or use of connection identifiers - 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 Disclosed are a method and device for signal detection. The method comprises: a terminal receives system configuration information of a second transmission point sent by a first transmission point; the terminal performs downlink signal detection on the second transmission point according to the system configuration information of the second transmission point. The terminal in embodiments of the present invention can obtain the system configuration information of the second transmission point from the first transmission point, thereby reducing the complexity of signal detection on the second transmission point by the terminal. ## Claims ### Claim 1 A method for signal detection, comprising: receiving, by a terminal from a first Transmission Point (TP), system configuration information of a second TP; and performing, by the terminal, downlink signal detection of the second TP according to the system configuration information of the second TP. ### Claim 2 (depends on 1) The method of claim 1, wherein the system configuration information comprises at least one of the following information: working frequency point information of the second TP, system bandwidth information of the second TP, time synchronization information of the second TP relative to the first TP, sub-carrier spacing information of the second TP, prefix information of a signal of the second TP, configuration information on structure of a sub-frames of the second TP, configuration information on uplink and downlink time slots of the second TP, configuration information on a synchronization signal of the second TP, configuration information on a reference signal of the second TP, Identifier (ID) information of the second TP or antenna configuration information of the second TP. ### Claim 3 (depends on 2) The method of claim 2, wherein the time synchronization information of the second TP relative to the first TP comprises at least one of: indication information for indicating whether the second TP is synchronous with the first TP, or a time synchronization offset of the second TP relative to the first TP. ### Claim 4 (depends on 3) The method of claim 3, wherein the time synchronization information comprises the indication information for indicating whether the second TP is synchronous with the first TP, and performing, by the terminal, downlink signal detection of the second TP according to the system configuration information of the second TP comprises: responsive to indicating that the second TP is synchronous with the first TP, performing, by the terminal, the downlink signal detection of the second TP according to downlink timing of the first TP; or, determining, by the terminal, a detection window for the synchronization signal of the second TP according to the downlink timing of the first TP; performing, by the terminal, synchronization signal detection of the second TP in the detection window to obtain synchronization reference of the second TP; and performing, by the terminal, the downlink signal detection of the second TP according to the synchronization reference of the second TP. ### Claim 5 (depends on 3) The method of claim 3, wherein the time synchronization information comprises the indication information for indicating whether the second TP is synchronous with the first TP, and performing, by the terminal, downlink signal detection of the second TP according to the system configuration information of the second TP comprises: responsive to indicating that the second TP is asynchronous with the first TP, detecting, by the terminal, the synchronization signal of the second TP to obtain synchronization reference of the second TP; and performing, by the terminal, the downlink signal detection of the second TP according to the synchronization reference of the second TP. ### Claim at position 6 -7. (canceled) ### Claim 8 (depends on 2) The method of claim 2, wherein the configuration information on the synchronization signal of the second TP comprises at least one of resource position information of the synchronization signal or sequence information carried in the synchronization signal. ### Claim 9 (depends on 8) The method of claim 8, wherein performing, by the terminal, downlink signal detection of the second TP according to the system configuration information of the second TP comprises: determining, by the terminal, at least one of time-frequency resource position or sequence information on the synchronization signal of the second TP according to at least one of the resource position information of the synchronization signal or the sequence information carried in the synchronization signal; detecting, by the terminal, the synchronization signal of the second TP according to at least one of the time-frequency resource position or sequence information to obtain synchronization reference of the second TP; and performing, by the terminal, the downlink signal detection of the second TP according to the synchronization reference of the second TP. ### Claim 10 (depends on 2) The method of claim 2, wherein the configuration information on the reference signal of the second TP comprises at least one of the following information: configuration information on time-frequency resources of the reference signal, sequence information of the reference signal, configuration information on transmitting power of the reference signal or port configuration information of the reference signal. ### Claim 11 (depends on 10) The method of claim 10, wherein the system configuration information of the second TP comprises the configuration information on the reference signal of the second TP, and performing, by the terminal, downlink signal detection of the second TP according to the system configuration information of the second TP comprises: determining, by the terminal, a configuration for the reference signal of the second TP according to the configuration information on the reference signal of the second TP; and performing, by the terminal, downlink Radio Resource Management (RRM) measurement of the second TP according to the configuration for the reference signal of the second TP; and the method further comprises: generating, by the terminal, an RRM measurement result; and sending, by the terminal, the RRM measurement result to the first TP; or, determining, by the terminal, whether the second TP is detected according to the RRM measurement result. ### Claim at position 11 -14. (canceled) ### Claim 15 (depends on 2) The method of claim 2, wherein the system configuration information of the second TP comprises the sub-carrier spacing information of the second TP, and performing, by the terminal, downlink signal detection of the second TP according to the system configuration information of the second TP comprises: determining, by the terminal, a number of sub-carriers within a target bandwidth of the second TP according to the sub-carrier spacing information; and performing, by the terminal, the downlink signal detection of the second TP according to the number of sub-carriers within the target bandwidth. ### Claim 16 (depends on 2) The method of claim 2, wherein the configuration information on structure of sub-frames of the second TP comprises at least one of: a number of Orthogonal Frequency Division Multiplexing (OFDM) symbols in a sub-frame, a number of Guard Periods (GPs) in the sub-frame, positions of the GPs in the sub-frame, or a number of different types of OFDM symbols in the sub-frame. ### Claim 17 (depends on 16) The method of claim 16, wherein the system configuration information comprises the configuration information on structure of sub-frames of the second TP, and performing, by the terminal, downlink signal detection of the second TP according to the system configuration information of the second TP comprises: determining, by the terminal, a sub-frame structure of the second TP according to the configuration information on structure of sub-frames of the second TP; and performing, by the terminal, the downlink signal detection of the second TP according to the sub-frame structure. ### Claim at position 15 -19. (canceled) ### Claim 20 (depends on 2) The method of claim 2, wherein the system configuration information comprises the antenna configuration information of the second TP, and performing, by the terminal, downlink signal detection of the second TP according to the system configuration information of the second TP comprises: determining, by the terminal, an antenna port used by the second TP for transmitting the downlink signal according to the antenna configuration information; and performing, by the terminal, the downlink signal detection of the second TP according to the antenna port. ### Claim 21 (canceled) ### Claim 22 (depends on 1) The method of claim 1, wherein the first TP is a carrier for transmitting Long Term Evolution (LTE) data, and the second TP is a carrier for transmitting 5th-Generation (5G) New Radio (NR) data. ### Claim 23 (depends on 1) The method of claim 1, further comprising: generating, by the terminal, a measurement result or a detection result for the downlink signal of the second TP; and sending, by the terminal, the measurement result or the detection result to the first TP. ### Claim 24 (depends on 1) The method of claim 1, further comprising: sending, by the terminal, an uplink signal to the second TP according to the system configuration information of the second TP. ### Claim 25 A method for signal detection, comprising: sending, by a first Transmission Point (TP), system configuration information of a second TP to a terminal, to enable the terminal to perform downlink signal detection of the second TP according to the system configuration information of the second TP. ### Claim 26 (depends on 25) The method of claim 25, wherein the system configuration information comprises at least one of the following information: working frequency point information of the second TP, system bandwidth information of the second TP, time synchronization information of the second TP relative to the first TP, sub-carrier spacing information of the second TP, prefix information of a signal of the second TP, configuration information on structure of sub-frames of the second TP, configuration information on uplink and downlink time slots of the second TP, configuration information on a synchronization signal of the second TP, configuration information on a reference signal of the second TP, Identifier (ID) information of the second TP or antenna configuration information of the second TP. ### Claim at position 23 -28. (canceled) ### Claim 29 A device for signal detection, comprising: a memory and a processor, the memory storing one or more computer programs that, when executed by the processor, cause the processor to execute operations comprising: receiving from a first Transmission Point (TP) system configuration information of a second TP; and performing downlink signal detection of the second TP according to the system configuration information of the second TP. ### Claim 30 (depends on 29) The device of claim 29, wherein the system configuration information comprises at least one of the following information: working frequency point information of the second TP, system bandwidth information of the second TP, time synchronization information of the second TP relative to the first TP, sub-carrier spacing information of the second TP, prefix information of a signal of the second TP, configuration information on structure of sub-frames of the second TP, configuration information on uplink and downlink time slots of the second TP, configuration information on a synchronization signal of the second TP, configuration information on a reference signal of the second TP, Identifier (ID) information of the second TP or antenna configuration information of the second TP. ### Claim at position 26 -56. (canceled)