Electron device and wireless communication method in wireless communication system

1. An electronic device at a user equipment side, comprising:

one or more processing circuits configured to perform operations of:

determining positioning measurement auxiliary data for the user equipment, the positioning measurement auxiliary data including configuration information of an enhanced discovery reference signal (eDRS) transmitted by at least one sleeping small cell base station;

performing positioning measurement on the eDRS transmitted by the at least one sleeping small cell base station and reference signals transmitted by two other cell base stations based on the positioning measurement auxiliary data and calculating a reference signal time difference (RSTD); and

generating positioning information based on a result of the positioning measurement performed on the eDRS transmitted by the at least one sleeping small cell base station to perform positioning on the user equipment and the calculated RSTD,

wherein the eDRS has a greater transmission power than a discovery reference signal (DRS); and

wherein the eDRS is different than a positioning reference signal (PRS).

2. The electronic device according to claim 1 , wherein the positioning measurement auxiliary data includes configuration information of the eDRS transmitted by the at least one sleeping small cell base station and configuration information of the reference signals for positioning measurement transmitted by the two other cell base stations.

3. The electronic device according to claim 2 , wherein among the two other cell base stations and the at least one sleeping small cell base station, one is a positioning reference cell base station, and remaining two are neighboring cell base stations participating in the positioning measurement, and the one or more processing circuits are configured to read offset information between reference signals of the neighboring cell base stations and a reference signal of the reference cell base station in the positioning measurement auxiliary data, and perform the positioning measurement based on the offset information.

4. The electronic device according to claim 2 , wherein at least one of the two other cell base stations is an active cell base station, a reference signal of which is a PRS, and the one or more processing circuits are configured to calculate the RSTD based on measurements results of the eDRS and the PRS.

5. The electronic device according to claim 4 , wherein the configuration information of the eDRS further includes at least one of cell base station identifier information, frequency information, antenna port configuration information and cyclic prefix length information of the at least one sleeping small cell base station.

6. The electronic device according to claim 1 , wherein the configuration information of the eDRS includes at least one of a power configuration, a bandwidth, a period, a time offset and silent information of the eDRS, and the period of the eDRS is an integral multiple of a period of the DRS which is greater than 1.

7. The electronic device according to claim 1 , wherein the one or more processing circuits are further configured to perform radio resource management measurement on the DRS in a radio environment where the user equipment is located to discover a neighboring sleeping small cell base station, and wherein the one or more processing circuits are configured to identify the eDRS based on a measurement signal intensity and correct the discovery of the neighboring sleeping small cell base station in response to the identification of the eDRS.

8. The electronic device according to claim 7 , wherein the correcting the discovery of the neighboring sleeping small cell base station includes: when determining a result of the radio resource management measurement,

neglecting the eDRS;

replacing the eDRS with a neighboring discovery reference signal DRS prior to the eDRS; or

subtracting, from a receiving power of the eDRS, a difference between transmission powers of the eDRS and the DRS.

9. The electronic device according to claim 1 , wherein the electronic device is the user equipment, and further comprises a transceiver configured to receive the positioning measurement auxiliary data from a network device via an air interface and transmit the positioning information to the network device.