Fujitsu Corporation

Cambridge Enterprise Limited

Advex Corporation Limited

Beijing Halation Technology Co., Ltd.

China Institute of Atomic Energy

Gang Sun

Hui Li

Zhan Shi

Xin Wang

Su Yi

Zhi Yan

William Alden Crossland

Qiang Liu

Jian Zhou

Jianmin Zhou

Donghui Zhang

Yaping Li

Zhiqi Wang

Anthony Bernard Davey

Sheng Lei

Zhaoyang Liu

Alan Colin Dixon

Haitao Xu

Kongli Yang

Mingzheng Wang

Chunguang Yan

Mingyue Sun

A beam management method, an apparatus thereof and an intelligent beam management device. The method includes querying a database according to position information (x, y, z) of a terminal equipment, the database including multiple entries, each entry containing beam measurement related information of a point (x, y, z), selecting entries corresponding to points in a predetermined range of the terminal equipment from the database; selecting no more than a first number of identifiers (IDs) of base station transmitter beams with the highest number of occurrences from all the selected entries; and determining a base station transmitter beam serving the terminal equipment according to whether beams corresponding to the no more than a first number of IDs of base station transmitter beams belong to a serving base station or another base station.

Beam management method, apparatus thereof and beam management device

A beam management method, an apparatus thereof and an intelligent beam management device. The method includes: querying a database according to position information (x, y, z) of a terminal equipment, the database including multiple entries, each entry containing beam measurement related information of a point (x, y, z), selecting entries corresponding to points in a predetermined range of the terminal equipment from the database; selecting no more than a first number of base station transmitter beam identifiers with the highest number of occurrences from all the selected entries; and determining a base station transmitter beam serving the terminal equipment according to whether beams corresponding to the no more than a first number of base station transmitter beam identifiers belong to a serving base station or another base station.

A network device system, a method for implementing a network device system and a computer-readable storage medium. The method includes: determining first times needed by functional modules of a network device in implementing respective functions according to processing abilities of physical resources; estimating second times needed by the functional modules in implementing respective functions according to the first times of the functional modules and empirical factors corresponding to the functional modules; determining physical resources needed by the network device according to the second times of the functional modules; and determining a scheduling scheme of the functional modules at current configurations according to the physical resources needed by the network device and scheduling schemes corresponding to different configurations of the functional modules. Hence, resources may be flexibly configured to meet different demands for traffics, thereby ensuing transmission quality while improving energy efficiency.

Network device system, method for implementing network device system and computer-readable storage medium

A method and apparatus for searching carrier frequencies (CFs) including determining all CFs to be measured within a frequency band according to a predetermined frequency interval; selecting part of the CFs as Sampling Measurement CFs (SMCFs) according to a predetermined band search step, and for each of the SMCFs, calculating initial peak to average ratio (PAR) of the SMCFs; weighting the initial PAR of each of the SMCFs by using initial PARs of SMCFs left and right neighboring each of the SMCFs, to obtain a determined PAR of each of the SMCFs; ordering the determined PARs of all the SMCFs, and selecting, in a descending order of the determined PARs, a predetermined number of SMCFs and frequencies to be measured left and right neighboring the selected SMCFs as a search result.

Method and apparatus for searching carrier frequencies

This invention relates to an amplifier device and a predistortion control method. The amplifier device comprises a predistortion unit, a predistortion control unit, and an amplifier unit, of which the predistortion control unit controls the predistortion unit in accordance with a signal fed back from the amplifier unit. The predistortion control method comprises determining power of a left side lobe of two side lobes of a frequency spectrum of the signal fed back from the amplifier unit; determining power of a right side lobe of two side lobes of a frequency spectrum of the signal fed back from the amplifier unit; determining a cost function in accordance with the power of the first and right side lobes, and controlling the predistortion unit in accordance with the cost function.

Amplifier device and predistortion control method

An adaptive digital predistortion device and method, the adaptive digital predistortion device including a predistortion unit for predistorting an input signal according to a predistortion parameter stored in a look-up table; a cost function generation unit for generating a cost function; a fixed segment point determination unit for determining a fixed segment point; and an update unit for updating parameters (u, u, k) according to the cost function to update the look-up table based on the updated parameters (u, u, k), wherein kis an updated adaptive segment point, uand uare slopes on two sides of the adaptive segment point ka; and for subsequently updating parameters (v, v) according to the cost function to update the look-up table based on the updated parameters (v, v) and the fixed segment point, wherein vand vare slopes on two sides of the fixed segment point. Therefore, the adaptive digital predistortion device according to the present invention can obtain a good performance within an acceptable convergence time by combining the adaptive segment with the fixed segment.

Adaptive digital predistortion device and method

An electrically controlled medium for modulating light includes two plastic thin film layers () and (), and a mixture layer () is arranged between the two plastic thin film layers () and (). The mixture layer () is consisted of smectic liquid crystals (), polymer materials () and dopants (). Electrode layers () are coated on one side of each of the two plastic thin film layers () and () facing to the mixture layer (), and the electrode layers () are connected to a device of electrical driving system (). The liquid crystal molecules are allowed to exhibit different molecule alignments by controlling the amplitude, frequency and driving time of the electric power applied to the electrode layers (), so that the electrically controlled medium for modulating light can be switched between a blurredly scattering state and a fully transparent state, even may be switched among a plurality of gradual translucent states of different gray levels. The medium is power saving, hard to be broken and eco friendly and it can maintain its state after power is off (memory effect). It has fast switching speed and can be broadly used for the fields of architectural decoration, privacy control areas, automotive electronics and glass, etc.

Electrically controlled medium for modulating light

This invention relates to a nonlinear degree measuring apparatus and method for a power amplifier, and a predistortion compensation apparatus. The nonlinear degree measuring apparatus comprises a delayer (), for delaying inputted pilot frequency data; a subtracter (), for subtracting, from the pilot frequency data delayed by the delayer, subsequently inputted pilot frequency data; a power calculating unit (), for calculating an instantaneous power of an outputted signal from the subtracter (); and an averager (), for averaging the instantaneous power calculated by the power calculating unit () to obtain an averaged power.

Nonlinear degree measuring apparatus and method for a power amplifier, predistortion compensation apparatus

A liquid crystal structure () comprising first and second reflective regions () arranged to reflect respective first and second colours. The first and second reflective regions () are disposed transversely to the direction of reflection (R). Each region includes a reflective back area and a selector () controllable to control light reflected from the region. Furthermore, a controllable reflector () is superposed over the reflective region in the direction of reflection (R) and controllable to transmit or scatter incident light.

Large scale liquid crystal structures

The present invention discloses a baseband predistorter and baseband predistortion method. The baseband predistorter comprising: an address generator for calculating an address of a phase basic lookup table and an address of an amplitude basic lookup table; a parameter determining unit for determining a phase translational amount, an amplitude translational amount, a phase curvature adjustment amount and an amplitude curvature adjustment amount; a phase translating unit for changing the address in accordance with the phase translational amount; an amplitude translating unit for changing the address in accordance with the amplitude translational amount; a phase basic lookup table searching section for determining a corresponding phase output; an amplitude basic lookup table searching section, for determining a corresponding amplitude output; a phase curvature adjusting section, for adjusting the phase output; and an amplitude curvature adjusting section, for adjusting the amplitude output.

Growing community of inventors

Beijing, China

Gang Sun