Electronic device and wireless communication method in wireless communication system

5:

• The electronic equipment according to claim 1, wherein the processing circuitry is further configured to:
• set configuration information for the D2D communication measurement that includes the information on the reference signal of the second user equipment;
• transmit the configuration information, to trigger a D2D communication link quality measurement between the first and second user equipments;
• and
• determine, based on the measurement report and information on a user equipment moving state, whether the current communication object of the first user equipment is to be switched to the second user equipment, the information on the user equipment moving state including the information on a relative velocity between the first and second user equipment.

9:

• The electronic equipment according to claim 8, wherein the first user equipment is in the first scenario when any of the following conditions is met:
• the information on user equipment moving state indicates that the relative velocity between the first and second user equipments is low and an absolute velocity between the first user equipment and the electronic equipment is high;
• the information on user equipment moving state indicates that the absolute velocity between the first user equipment and the electronic equipment is moderate, and the information on adjacent cell deployment density indicates that an adjacent cell deployment density is high;
• the information on user equipment service requirement indicates that a user equipment service requirement is a continuous large data size;
• and
• the information on user equipment service requirement indicates that the user equipment service requirement is a continuous moderate data size, and the information on source cell load degree indicates that a source cell load degree is high.

13:

• An electronic equipment in a wireless communication system, comprising processing circuitry configured to:
• receive information on a reference signal of a user equipment being a candidate object for a Device-to-Device (D2D) communication of the electronic equipment;
• transmit a measurement report to the base station equipment based on quality of a D2D communication link between the electronic equipment and the user equipment based on the referenced signal of the user equipment;
• and
• switch a communication between the electronic equipment and a current communication object to a communication between the electronic equipment and the user equipment based on switching information, wherein the base station equipment (i) transmits the switching information, (ii) determines to switch the communication between the electronic equipment and the user equipment to a D2D communication between the electronic equipment and another user equipment based on the D2D communication link quality measurement and a relative velocity between the electronic equipment and the another user equipment, and (iii) determines whether the electronic equipment is in a first scenario in which a system gain is improved when a D2D communication is performed between the electronic equipment and the user equipment,
• wherein the communication mode is to be switched from the traditional cellular communication mode to the D2D communication mode when the electronic equipment is in the first scenario and the measurement report indicates that a measured value of the quality of a D2D communication link between the electronic equipment and the user equipment is greater than a first predetermined threshold.

18:

• The electronic equipment according to claim 13, wherein:
• the processing circuitry is further configured to
• receive configuration information for D2D communication measurement that includes the information on the reference signal and the switching information,
• perform a configuration on the electronic equipment based on the configuration information, to perform a communication link quality measurement,
• perform a measurement on the quality of a communication link between the electronic equipment and the user equipment based on the configuration and reference signal of the user equipment, and
• transmit the measurement report based on the quality of the D2D communication link indicated by a result of the measurement, and wherein the base station equipment determines that the electronic equipment is in a scenario in which a measured value of a D2D communication link quality between the electronic equipment and the user equipment is lower than a threshold, sets the configuration information, and transmits the switching information to trigger a measurement of the quality of the D2D communication link between the electronic equipment and another user equipment among a plurality of equipment.

19:

• An electronic equipment in a wireless communication system, comprising
• processing circuitry configured to:
• receive configuration information on physical resource of a Device-to-Device (D2D) reference signal for a D2D measurement, from a base station equipment serving the electronic equipment:
• and
• transmit the D2D reference signal comprising at least one of a Sounding Reference Signal (SRS) and a Demodulation Reference Signal (DMRS);
• establish a communication with a user equipment, which switches a previous communication between the user equipment and the base station equipment to the communication between the user equipment and the electronic equipment, wherein the base station equipment (i) determines that the user equipment is in a scenario in which a measured value of a D2D communication link quality between the electronic equipment and the user equipment is lower than a threshold, (ii) sets the configuration information, (iii) transmits the configuration information, (iv) determines to switch the communication between the user equipment and the electronic equipment to a D2D communication between the user equipment and the another user equipment based on a D2D communication link quality measurement and a relative velocity between the user equipment and the another user equipment, (v) determines whether the user equipment is in a first scenario in which a system gain is improved when a D2D communication is performed between the electronic equipment and the user equipment, and (vi) initiates the setting of the configuration information when the user equipment is in the first scenario,
• wherein the communication mode is to be switched from the traditional cellular communication mode to the D2D communication mode when the user equipment is in the first scenario and the measurement report indicates that a measured value of the quality of a D2D communication link between the electronic equipment and the user equipment is greater than a first predetermined threshold.