China Academy of Telecommunications Technology

Datang Mobile Communications Equipment Co., Ltd.

Shanghai Datang Mobile Communications Equipment Co., Ltd.

Yusong He

Feng Li

Tiezhu Xu

Guiliang Yang

Shihe Li

Xiaolong Ran

Wenqian Zhou

The present invention relates to the technical field of wireless communications. Disclosed are a physical cell identifier allocation method and an apparatus. In a scheme, when allocating a physical cell identifier, first determining a degree of interference of each type of an adjacent cell to a main cell for which a physical cell identifier needs to be allocated, and then performing allocation for the main cell based on a remainder value corresponding to a minimum degree of interference, thus implementing effective reduction of reference signal interference and improving effectiveness of reducing reference signal interference.

Physical cell identifier allocation method and apparatus

A method for distributing wireless resource in multicarrier time division duplexing mobile communication system, such as TD-CDMA system, to overcome the shortage of 3GPP single carrier cell channel distribution technology of covering more lager area in composing cellular system, which contains using an area of covering same or almost same as a cell, selecting one carrier as main carrier and other carriers as auxiliary carrier, the frequency of main carrier is as different as possible, setting all public control channel in main carrier, the left resource of main carrier and resource of auxiliary carrier are used in uplink and downlink service channel, the arrangement of public channel in main carrier is same with that in single carrier cell.

Method for allocating radio resource in multi-carrier time division duplex mobile communication system

The invention discloses to a signal processing method for user equipment in a CDMA mobile communication system. The signal processing method is a combination of time diversity and joint detection in order to raise diversity gain of a receiver. The method comprises: sample a received signal on time domain, estimate spatial channel impulse response value, obtain matrixes, constitute a system matrix, perform joint detection algorithm and obtain an estimated value of original sending data. When the method is used in a mobile user equipment, the uplink and downlink performance unmatched problem can be solved, using same frequency multiplexing can be reached and the joint detection algorithm is a simpler one. The method also can be used in a base station.

Method for signal processing in user equipment of CDMA mobile communication system

The invention relates to a cell initial search method for user equipment (UE) in a CDMA digital cellular mobile communication system. The method includes: a UE after selecting a working frequency point, obtains downlink synchronization with the base station; and corrects carrier deviation between the UE and the base station. The downlink synchronization includes: deciding a range of downlink training sequence timeslot (DwPTS) based on training sequence power characteristic window value method; solving correlation of received data and training sequence in the range to obtain accurate receiving position of a UE. The correction of carrier deviation between a UE and the base station includes: estimating carrier deviation between a UE and the base station by software, recovering carrier frequency difference by using decision and feedback method to adjust hardware and carrier deviation correction method based on joint detection to correct carrier deviation.

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Beijing, China

Yusong He