Electronic device and method for synchronous detection between time division duplex wireless communication cells

An electronic device for a time division duplex wireless communication system, wherein the electronic device comprises:

• command circuitry configured to notify a specific terminal device of a target cell serving as a target of synchronization detection, as well as a detection period or a maximum detection time interval for the synchronization detection;
• and
• receiving circuitry configured to receive an actual time slot allocation of the target cell as well as a cell ID and an operator ID of the target cell reported by the specific terminal device,
• wherein the electronic device is a base station, and the target cell comprises a cell of the base station,
• wherein the base station further comprises:
• determining circuitry configured to determine, based on content received by the receiving circuitry, whether or not the target cell is out of step;
• and
• control circuitry configured to perform control to readjust time synchronization of itself when it is determined that itself is out of step, and perform control to send a notification to a designated party when it is determined that a cell other than itself is out of step,
• wherein the command circuitry is further configured to measure or estimate a distance from a candidate terminal device to a base station of the target cell based on an advanced amount of an uplink transmission time of the candidate terminal device, a path loss of the present cell or a signal arrival angle of the candidate terminal device, and to select and activate a candidate terminal device at a distance from the base station of the target cell less than or equal to a predetermined distance threshold as the specific terminal device for performing the synchronization detection on the target cell.

A method of detecting synchronization between cells in a time division duplex wireless communication system, comprising:

• acquiring, at a specific time, an actual time slot allocation of a target cell by synchronizing to the target cell based on a detection period or a maximum detection time interval, as well as a cell ID and an operator ID of the target cell, the target cell serving as a target of synchronization detection of the electronic device;
• transmitting the actual time slot allocation of the target cell as well as the cell ID and the operator ID of the target cell to a designated party;
• determining, based on content received, whether or not the target cell is out of step;
• readjusting time synchronization when it is determined that the target cell is out of step, and sending a notification to a designated party when it is determined that another cell is out of step;
• measuring or estimating a distance from a candidate terminal device to a base station of the target cell based on an advanced amount of an uplink transmission time of the candidate terminal device, a path loss of the present cell or a signal arrival angle of the candidate terminal device, and to select and activate a candidate terminal device at a distance from the base station of the target cell less than or equal to a predetermined distance threshold as the specific terminal device for performing the synchronization detection on the target cell.

A method of detecting synchronization between cells in a time division duplex wireless communication system, comprising:

• notifying a specific terminal device of a target cell serving as a target of synchronization detection, as well as a detection period or a maximum detection time interval of the synchronization detection;
• receiving an actual allocation of the target cell as well as a cell ID and an operator ID of the target cell reported by the specific terminal device;
• determining, based on content received, whether or not the target cell is out of step;
• readjusting time synchronization when it is determined that the target cell is out of step, and sending a notification to a designated party when it is determined that another cell is out of step;
• measuring or estimating a distance from a candidate terminal device to a base station of the target cell based on an advanced amount of an uplink transmission time of the candidate terminal device, a path loss of the present cell or a signal arrival angle of the candidate terminal device, and to select and activate a candidate terminal device at a distance from the base station of the target cell less than or equal to a predetermined distance threshold as the specific terminal device for performing the synchronization detection on the target cell.