Hon Lin Technology Co., Ltd.

Mykola Servetnyk

Wei-Han Hsiao

Shang-Ho Tsai

Wen-Rong Wu

Yu-Heng You

Hsuan-Chi Liang

Hsuan-yi Wu

Ming-Lun Wu

Huan-Tang Sheng

A method, applied in an apparatus and computer readable storage medium, for establishing location of a target terminal in an obstructed environment comprises determining, based on indoor environmental information and data observed by a plurality of base stations in communication with the terminal, establishes lines of signals from the terminal scattered by local obstructions, and based on positional information as to the obstructions which cause the scattering, estimating a more precise positional information of the terminal.

Method, apparatus and computer readable storage medium for establishing precise location of a terminal in wireless communication with base stations

A method and a system for downlink pre-coding in cloud radio access networks uses a baseband unit, a number of remote radio heads, and a number of user equipments. The baseband unit determines a received signal expression for each user equipment based on system parameters and channel state information, and determines a sum rate expression which may be achievable for downlink transmission based on the received signal expression. The baseband unit then sets up a constrained optimal problem expression subject to a maximum transmitting power of each remote radio head with an objective function of sum rate maximization based on the achievable sum rate expression, and finally determines optimal solutions for the constrained optimal problem where the optimal solutions comprise downlink pre-coding used for downlink transmission.

Method and system for downlink pre-coding in cloud radio access networks

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Hsinchu, Taiwan

Mykola Servetnyk