Zte Corporation

Huawei Technologies Co., Limited

Byd Company Limited

Shenzhen Byd Auto R&d Company Limited

Tencent Technology (shenzhen) Company Limited

Xi'an Zhongxing New Software Co., Ltd.

Chen Huang

Zhipeng Zhou

Renzhou Zhang

Weizhong Yuan

Yajun Zhao

Hanqing Xu

Linmei Mo

Yujie Li

Xin Hui Zhang

Cheng Wang

Hongfeng Qin

Ming Yang

Wei Wu

Nan Li

Yun Yang

Haojun Zhou

Xiaolong Zhang

Zhifeng Yuan

Yunfeng Sun

Wei Wei

Liang Chen

Qian Wang

Li Tian

Xiao Zhang

Yuzhou Hu

Yongjing Zhang

Jianqiang Dai

Jue Wang

Jian Ken Song

Fang Zhang

Shuai Wang

Ziyang Li

Xin Zhang

Baoyu Sun

Pei Dang

Zhengang Li

Gang Qiu

Chaowei Wang

Zhen Ren

Jiying Xiang

Qiang Xie

Yi Wang

Sichen Wang

Guofeng Chen

Donglei Chen

Chuansuo Ding

Peng Geng

Hongfeng Yuan

Yanmin Yu

Wen Ji Zhao

Qingliang Li

Caofei Heng

Yufeng Ruan

Dongying Zhang

Zihui Liu

Mingxia Cao

Tian Cai

Yihuai Zhang

Wanfang Zhang

Xi Yuan

Kankan Ji

Dagang Chen

Chuanchuan Yang

Yankai Peng

Mingzheng Feng

Haojuan Zhou

Wenjie Feng

In a voltage conversion circuit, a sampling signal and a triangular wave signal are synthesized into a first signal, and the first signal and a second signal are compared to output a pulse-width modulation (PWM) signal. A frequency of the PWM signal may be determined by a frequency of the triangular wave signal. Therefore, the frequency of the PWM signal is fixed using the frequency-fixed triangular wave signal. Turning on or switching off of a power transistor in a voltage conversion subcircuit is controlled according to the PWM signal to convert a received direct current input voltage into a direct current output voltage, thereby implementing a fixed operating frequency for the voltage conversion circuit.

Apparatus and method for a voltage conversion circuit with feedback circuitry

Provided are a multi-carrier signal generation method, apparatus, and system. The method comprises: according to property information of a subframe, determining filter configuration information corresponding to said subframe (); according to the filter configuration information, obtaining a multi-carrier signal of the filter bank corresponding to each of the filter configuration information ().

Multi-carrier signal generation method, apparatus, and system

Methods, systems, and devices related to the configuration of multiple transmissions to reduce signaling overhead between a wireless communication node and a user device. In one exemplary aspect, a method for wireless communication is described. The method includes receiving, at a mobile device, a first message from a wireless communication node, the first message including one or more parameters for configuring transmissions between the wireless communication node and the mobile device. The method includes performing, based on the one or more parameters included in the first message, a first transmission with the wireless communication node. The method also includes performing, based on at least one parameter of the one or more parameters included in the first message, a second transmission with the wireless communication node.

Configuring multiple transmissions

A data transmission method includes receiving a service request sent by a terminal device. The method also includes determining, based on the service request, a target transmission path of service data corresponding to the service request and a change policy corresponding to the target transmission path. The method further includes changing, according to the change policy, a current content delivery network (CDN) to a target CDN. The target CDN includes a plurality of serving nodes corresponding to the target transmission path. The method additionally includes sending an indication message to a first serving node in the target CDN to indicate the first serving node to send the service data to the terminal device through the target transmission path; or sending an indication message to a second serving node in the target CDN to indicate the second serving node to send the service data to the terminal device.

Data transmission method and related apparatus

This disclosure relates generally to wireless communications and, more particularly, to systems and methods for bit level processing to produce a scrambled data bit sequence that, after modulation, may produce a symbol sequence that matches a symbol sequence produced by symbol spreading. In one embodiment, a method performed by a communication device includes: encoding user data to produce a first data bit sequence; generating a result bit sequence based on a first scrambling bit sequence and the first data bit sequence; and transmitting a signal based on a scrambled data bit sequence scrambled with the result bit sequence.

Systems and methods for bit level signal processing

According to various implementations, a device, such as a wireless communication device, carries out the following actions: for each element of a spreading sequence to be applied, determining, based on the element, whether to carry out randomization on a coded data stream, in which each element of the spreading sequence belongs to the set {1, &#x2212;1, j, &#x2212;j}; for each element of the spreading sequence for which randomization is determined to be applied, applying, based on the value of the element, one or more randomization techniques to the coded data stream; modulating the coded data stream; and transmitting the modulated data stream.

Methods and computing device for bit level signal processing

This application provides a dual-polarized radiating element, an antenna, a base station, and a communications system. The dual-polarized radiating element includes: an insulated support structure with a solid structure, where the insulated support structure includes a top part, a base, and an intermediate supporting piece that connects the top part and the base; and at least two radiating arm groups conformal to the insulated support structure, and feeding mechanisms corresponding to the radiating arm groups; the feeding mechanism includes a balun and a feeding plate, one end of the balun is electrically connected to a corresponding radiating arm group, and another end of the balun is electrically connected to a ground layer; and the feeding plate is connected to an electric lead on the base of the insulated support structure.

Dual-polarized radiating element, antenna, base station, and communications system

A message sending method includes: displaying chat messages on a chat interface, which is one of a group chat interface and a single chat interface; when detecting a reply operation performed by a user on a first chat message in the chat messages, obtaining content of the first chat message and content of a reply message corresponding to the reply operation; combining the content of the first chat message and the content of the reply message into a second chat message; when the first chat message is on the group chat interface, sending the second chat message to a client corresponding to each chat account that participates in a group chat; and when the first chat message is on the single chat interface, sending the second chat message to a client corresponding to a chat account that posted the first chat message.

Message sending method and apparatus, computer terminal, and storage medium

Disclosed are a method and apparatus for interference alignment based on codebook design and selection. The method includes: a codebook set including codebooks of different sizes of a precoding matrix is pre-designed or pre-stored; a receiver or a transmitter selects a codebook satisfying a specified condition from the codebook set to explicitly or implicitly notify the opposite end; the receiver designs, based on obtained ideal CSI and an interference alignment condition, a precoding matrix V and a receiving matrix U for interference alignment; the receiver selects a matrix V' having the highest similarity to V from the current codebook to serve as a finally quantized precoding matrix V&#x2032;; the receiver calculates, based on V&#x2032;, U again to obtain a receiving matrix U&#x2032; according to the interference alignment condition; and the transmitter transmits a signal according to feedback information and V&#x2032;, and the receiver filters the signal according to U&#x2032;.

Method and apparatus for implementing interference alignment on the basis of codebook design and selection

A voltage conversion circuit and method, and a multiphase parallel power system, where in the voltage conversion circuit, a feedback circuit provides a frequency-controllable feedback ripple signal. Therefore, the voltage conversion circuit has a controllable operating frequency, and a frequency requirement of a load may be met. Compensation does not need to be performed in a hysteresis mode, and therefore the hysteresis mode has a fast-speed response. The operating frequency is fixed. Therefore, the voltage conversion circuit in the embodiments may be applied to the multiphase parallel power system such that the multiphase parallel power system is applicable to an application scenario with a large load current.

Voltage conversion circuit and method, and multiphase parallel power system

Provided is a method for interference alignment applied to a multi-cell and multi-user Multiple Input Multiple Output (MIMO) system. The method includes that: a BS divides multiple users in a cell into a plurality of user groups, and notifies the multiple users of grouping information; and when one of the plurality of user groups is interfered by a neighbor cell, users in the one of the plurality of user groups cooperate with each other to perform interference alignment. The disclosure also provides a pre-coding method and system based on interference alignment. The disclosure, by means of grouping and cooperation of the users and designing of a receiving matrix of each user, achieves the effect of interference alignment in a signal transmission space of the BS.

Pre-coding system and method based on interference alignment

Disclosed are a multi-antenna transmission method, a terminal and a base station, wherein, an eNB sends a UE a SRS transmission mode including new SRS transmission port information and/or a signaling for instructing the UE to perform antenna group alternate transmission as well as a control signaling required by the SRS transmission mode; the UE transmits a SRS using the abovementioned SRS transmission mode, and the eNB estimates a channel information according to the SRS and calculates and transmits a precoding matrix.

Multi-antenna transmission method, terminal and base station

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 present document discloses a method, apparatus and system for indicating downlink resources of a coordinated multi-point network in an LTE system. The method includes: determining a control station/cell and a service station/cell of a User Equipment (UE); and indicating through signaling that a Physical Downlink Shared Channel (PDSCH) of the UE occupies radio resources of the service station/cell in a control region, whereby a start position of the PDSCH allocated for the UE by the service station/cell is the first symbol of a subframe, and when a resource mapping in the control region is performed, the PDSCH does not occupy Resource Elements (REs) occupied by a Cell Reference Signal (CRS), a Physical Control Format Indicator Channel (PCFICH), a Physical Hybrid-ARQ Indicator Channel (PHICH) of a station/cell where the PDSCH is located, and a Physical Downlink Control Channel PDCCH of the UE.

Downlink resource indication method, apparatus and system for multiple-point-coordination network in LTE system

A method for guaranteeing channel phase continuity of pre-coded RB groups, a base station and a computer-readable storage medium are described. The method includes that: a base station implements a channel estimation through a Sounding Reference Signal (SRS) measurement to obtain an uplink channel and obtains a corresponding downlink channel based on reciprocity of uplink and downlink channels; the base station calculates a weight phase correction factor based on the obtained downlink channel and corrects a pre-coding weight with the weight phase correction factor; and the base station pre-codes data according to the corrected pre-coding weight and sends the pre-coded data.

Method for guaranteeing channel phase continuity of pre-coded RB groups, base station and computer-readable storage medium

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Shenzhen, China

Chen Huang