Method and device for signal detection

1. A method for signal detection, comprising:

receiving, by a terminal, system configuration information of a second TP, from a first Transmission Point (TP), wherein the system configuration information comprises time synchronization information and sub-carrier spacing information of the second TP, and the time synchronization information of the second TP comprises 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 downlink timing of the first TP, when the indication information indicates that the second TP is synchronous with the first TP,

wherein the first TP is a carrier on a Long Term Evolution (LTE) frequency band, and the second TP is a carrier on a 5th-Generation (5G) New Radio (NR) frequency band.

2. The method of claim 1 , wherein the system configuration information further comprises at least one of the following information:

working frequency point information of the second TP, system bandwidth 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.

3. 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.

4. The method of claim 3 , wherein the system configuration information of the second TP comprises the configuration information on the synchronization signal of the second TP, and the method further 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.

5. 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.

6. The method of claim 5 , wherein the system configuration information of the second TP comprises the configuration information on the reference signal of the second TP, and the method further 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.

7. 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.

8. The method of claim 7 , wherein the system configuration information comprises the configuration information on structure of sub-frames of the second TP, and the method further 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.

9. The method of claim 2 , wherein the system configuration information comprises the antenna configuration information of the second TP, and the method further 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.

10. The method of claim 1 , wherein the time synchronization information of the second TP further comprises a time synchronization offset of the second TP relative to the first TP.

11. The method of claim 1 , further comprising:

detecting, by the terminal, the synchronization signal of the second TP to obtain synchronization reference of the second TP, when the indication information indicates that the second TP is asynchronous with the first TP; and

performing, by the terminal, the downlink signal detection of the second TP according to the synchronization reference of the second TP.

12. The method of claim 1 , wherein the system configuration information of the second TP comprises the sub-carrier spacing information of the second TP, and the method further 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.

13. 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.

14. 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.

15. A method for signal detection, comprising:

sending, by a first Transmission Point (TP), system configuration information of a second TP to a terminal, wherein the system configuration information comprises time synchronization information and sub-carrier spacing information of the second TP, and the time synchronization information of the second TP comprises indication information for indicating whether the second TP is synchronous with the first TP, to enable the terminal to perform downlink signal detection of the second TP according to downlink timing of the first TP, when the indication information indicates that the second TP is synchronous with the first TP;

wherein the first TP is a carrier on a Long Term Evolution (LTE) frequency band, and the second TP is a carrier on a 5th-Generation (5G) New Radio (NR) frequency band.

16. The method of claim 15 , wherein the system configuration information further comprises at least one of the following information:

working frequency point information of the second TP, system bandwidth 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.

17. 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, wherein the system configuration information comprises time synchronization information and sub-earner spacing information of the second TP, and the lime synchronization information of the second TP comprises indication information for indicating whether the second TP is synchronous with the first TP; and

performing downlink signal detection of the second TP according to downlink timing of the first TP, when the indication information indicates that the second TP is synchronous with the first TP;

wherein the first TP is a carrier on a Long Term Evolution (LTE) frequency band, and the second TP is a carrier on a 5th-Generation (5G) New Radio (NR) frequency band.

18. The device of claim 17 , wherein the system configuration information further comprises at least one of the following information:

working frequency point information of the second TP, system bandwidth 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.