Zte Corporation

Jiying Xiang

Meng Zhao

Yanwei Wu

Chunbo Yao

Guanghui Yu

Liujun Hu

Nan Li

Shijun Chen

Chen Huang

WeiFeng Zhang

Aimin You

Dandan Guo

Gang Qiu

Donglei Chen

Peng Geng

Daxiong Xie

Xianming Zhao

Zhen Ren

Zongan Li

Shiju Sui

Nanfang Li

Lilin Li

Zhaogang He

Provided are an inter-eNodeB communication method and device, wherein the method includes that: an inter-eNodeB interface transmission condition is detected, a cooperation mode of inter-eNodeB communication is determined according to the inter-eNodeB interface transmission condition, and the inter-eNodeB communication is performed according to the cooperation mode. The present disclosure solves the problem of inter-eNodeB cooperation in different inter-eNodeB interface conditions in the related art, thus improving the effect of the inter-eNodeB cooperation.

Inter-eNodeB communication method and device

The disclosure discloses a method for sharing a frequency spectrum between a GSM system and a LTE system. The method includes: avoiding fixed channels of the LTE system of a current cell when allocating frequency points of the GSM system to the current cell and a neighbor cell interfering with the current cell; frequency domain resources allocated to users and indicated by Physical Downlink Share Channels (PDSCHs) and Physical Uplink Share Channels (PUSCHs) of the LTE system are not located on same frequency resources with frequency points of the GSM system of the current cell and the neighbor cell interfering with the current cell.

Method and system for sharing frequency spectrum between GSM system and LTE system

A system for synchronizing clock, which is used to realize the synchronization between a radio frequency module and a base band module in a base station, comprises: one or more time generators, located on the radio frequency module side, configured to generate a synchronous signal according to an external clock signal, and to send the synchronous signal to a time distributor; the time distributor, located on the base band module side, configured to generate a synchronous clock according to a synchronous signal from one of the one or more time generators, and to adjust the synchronous clock according to a communication delay between the time generator which outputs the synchronous signal and the time distributor, and to send the synchronous clock adjusted to the radio frequency module and the base band module to realize the synchronization between the radio frequency module and the base band module.

System for synchronizing clock

A method for reducing the fitting thrust of golden finger () and a PCB (). The method and the PCB () solve the problem of excessive inserting force of the golden finger () of the prior art, through modifying the shape of the edge of the PCB (), the edge of the PCB open reeds of a connector () at different time. The PCB () has at least one concave edge section or at least one convex edge section or at least one tilt edge section, and the edge can further be beveled. The bonding pads of the golden finger can be assorted, pin ends of a part of golden fingers () can be partially removed or these golden fingers can be completely removed, the pin ends of a part of golden fingers () can be preserved. Through the method, the purpose of reducing the fitting thrust upon inserting the PCB () into the connector can be achieved.

Method for reducing the fitting thrust of golden finger and PCB

The present invention relates to a device for realizing beam-forming in CDMA mobile telecommunication system by employing smart antenna technique and method thereof, which forms multiple fixed beams in a sector, and uses multiple fixed beams to form the traffic channel with narrow beams and the common channel with sector beams simultaneously in the same smart antenna system, and overcomes the problem of inconsistency of phrases of respective channels due to the variations of time and temperature without complicated correction technique, thereby improving the capacity and performance of CDMA system with multiple antennas. It solves the problem that the fixed beams in some area correlate with and counteract one another or are greatly reduced due to the correlating addition of the space vectors of each fixed beam when the multiple antenna CDMA system transmits the common channels, and makes the strength of the pilot channel and the traffic channel in corresponding proportion in the coverage area, and improves the signal to noise ratio of receiving signals by the mobile station. By adding an optical transceiver system between the base band and the radio frequency TRX, the base band part can support more sectors. The radio frequency part is very close to the antennas, therefore the power consumption is reduced.

Method and apparatus for implementing beam forming in CDMA communication system

A device and method for eliminating narrow-band interference by windowing in a spread spectrum system are disclosed. The method comprises extracting N sampling points of data to perform frequency spectrum transform each time and obtaining N points of data; updating control information, comparing the energy values of the N points with the threshold within the set time period to determine the number of narrow-band interference as well as the width and location of the interference; determining the corresponding frequency domain adjusting window based on the width and location of the narrow band interference, obtaining the points within the window and the adjusted values of those points; with regard to the transformed N points during interference elimination process, setting the energy values of the points within the window during the current time period and the last period as the corresponding adjusted values, outputting the points after frequency spectrum inverse transform.

Method and apparatus for eliminating narrow band interference by means of windowing processing in spread spectrum system

Narrow-band interference in spread spectrum systems is eliminated by performing a frequency spectrum transform on N sampling points of the data to obtain N points of data; after M transforms, getting an energy accumulation of individual data to obtain N energy values; removing partial excessive large values from the N energy values, averaging the rest, then calculating the threshold value for interference determination based on the average value; identifying all points that have energy values exceeding the threshold value, and performing interference suppression for the data of corresponding points after frequency spectrum transform and finally outputting the data after frequency spectrum inverse transform.

Method and device for removing narrow band interference in spreading frequency system

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Shenzhen, China

Jiying Xiang