Zte Corporation

Zte Wistron Telecon Ab

Weiming Pan

Feng Zeng

Yijun Duan

Zhengjian Dai

Lei Zhang

Zhe Zhang

James Peroulas

Aimin You

Dongfang Ning

Mei Huang

Dameng Ren

Zeliang Yang

Yuping Cui

The present document discloses an apparatus and method for nonlinear system distortion correction. The apparatus includes: apparatus for nonlinear system distortion correction including: a robustness signal source generator, arranged to generate a robustness signal provided to an adaptive device; the adaptive device, arranged to collect a main link signal output by a signal generator and a feedback signal returned by the main link signal via a feedback link, and generate a correction parameter according to the main link signal, the feedback signal and the robustness signal; and a pre-corrector, arranged to according to the correction parameter perform pre-correction processing on the main link signal output by the signal generator.

Nonlinear system distortion correction device and method

A multi-channel predistortion method and apparatus are disclosed. The technical method provided in the embodiment of the present invention includes: determining a channel index of a current channel to be processed; performing handover to the current channel according to a determined channel index; collecting forward data and reverse data of the current channel, and estimating a predistortion coefficient; and performing predistortion compensation on forward data of each channel according to a corresponding predistortion coefficient. In the embodiments of the present invention, by using a jumping polling mode on a channel time, the predistortion efficiency under multiple channels is improved. In addition, by means of all channels or a plurality of channels sharing N power levels, the resource utilization rate is improved.

Multi-channel predistortion method and apparatus

A multicarrier baseband peak elimination device and method are disclosed. The device includes: K branches, a peak selection module, an error signal generation module, and an adder; wherein K is an integer greater than 1; and each branch includes a delayer, a digital up conversion module, a first numerically controlled oscillator, a first multiplier, a second numerically controlled oscillator, a second multiplier, a digital down conversion module, an offset pulse generation module, and a subtractor.

Peak elimination device and method for multicarrier baseband

The document discloses a pre-distorter, which comprises: a pre-distortion module, which is configured to pre-distort a plurality of baseband input signals by an equal number of pre-distortion functions to obtain an equal number of pre-distorted signals respectively, wherein all of the baseband input signals input into every pre-distortion function, and each pre-distortion function has one output; an adder, which is configured to combine all of the pre-distorted signals output from every pre-distortion function into one combined signal; and a power amplifier (PA), which is configured to amplify the combined signal, wherein the cascade of the pre-distortion functions and the PA are linear overall. And the document also discloses a method for distorting. The document reduces the implementation cost of a pre-distorter.

Method for pre-distorting and a pre-distorter

The disclosure discloses a remote radio unit, which comprises: a common slot, an antenna and a plurality of function modules; wherein the common slot is connected with the antenna and comprises a plurality of slots, and each function module is inserted in a different slot of the common slot respectively. The disclosure can solve the problem that a remote radio unit is extended inconveniently while adding frequency bands and the whole remote radio unit will be greatly affected in most cases when a fault occurs in the module supporting one frequency band.

Remote radio unit

Growing community of inventors

Shenzhen, China

Weiming Pan