Zte Corporation

Zte Wistron Telecom Ab

Zte Wistron Telecon Ab

Aimin You

Peng Hao

Wei Gou

Junfeng Zhang

Jun Li

James Peroulas

Patrick Svedman

Feng Zeng

Jiying Xiang

Yijun Duan

Zhengjian Dai

Dongfang Ning

Weiming Pan

Qun Liao

Daxiong Xie

Xianming Zhao

Zeliang Yang

Qingqi Yu

Yiqun Mo

Zhaoquan Zeng

Weitao Yuan

Xiaowei Yan

A random access method, device, and equipment are disclosed. The method includes: receiving, by a network node, a random access request, wherein the random access request comprises a preamble and a first data block; and sending, by the network node, a random access response.

Random access method, device, and equipment

An improved DPD system includes a predistortion module having at least one predistortion function. The predistortion module is configured to receive and subsequently process a baseband signal. The system also includes a power amplifier configured to receive the processed baseband signal from the predistortion module. The system further includes a model calculator configured to program priorities for predistortion functions so that the processed baseband signal transmitted from the predistortion module corresponds to the transmission power of the power amplifier. The model calculator is further configured to send a trigger signal to indicate when data capture from the power amplifier should begin so as to update the predistortion functions. A trigger module in the system is configured to receive the trigger signal and to initiate data capture from the power amplifier upon receipt of the trigger signal.

Capture buffer of digital predistortion systems

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

An apparatus and method for linearizing a non-linear power amplifier. The method comprises: performing an iteration algorithm by using a desired output signal of the non-linear power amplifier, to calculate an input signal of the non-linear power amplifier, whereby with the calculated input signal of the non-linear power amplifier, the non-linear power amplifier is linearized. The apparatus and method can produce a signal on the output of the non-linear power amplifier with an arbitrarily high quality of performance.

Method and apparatus for linearizing a non-linear power amplifier

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Shenzhen, China

Aimin You