Samsung Electronics Co., Ltd.

Kmw Inc

Sogang University Research Foundation

Industry-university Cooperation Foundation Sogang University

Dae-Hyoung Hong

Young-Chan Moon

Mi-Sun Do

Hyon-Goo Kang

Bong-Jhin Shin

Won-Jin Sung

Chang-Seob Choi

Jung-Min So

Myong-Sik Lee

Doo-Hun Choi

Hee-Jung Byun

Sang-Won Yun

Young-Lok Kim

Ok-Hyun Jeong

Ga-Hee Lee

The present invention relates to a mobile communication base station system comprising: a donor unit connected to a baseband unit; and a remote unit installed at the base station antenna side, wherein the donor unit has a baseband signal processing part including a digital signal processing part for processing interface with the baseband unit, a wireless communication part for processing a wireless communication signal between the baseband signal processing part and the remote unit, and a synchronization and communication control part for processing a synchronizing signal and a communication control signal from the baseband unit, and wherein the remote unit has a service signal processing part for processing MIMO interface with a base station antenna, a wireless communication part for processing a wireless communication signal between the service signal processing part and the donor unit, and a synchronization and communication control part for processing a synchronizing signal and a communication control signal from the donor unit. The donor unit and the remote unit can be easily expanded in a daisy-chain fashion, thereby broadening coverage, and can also be utilized for multihop relay, and thus are suitable for small cell-based next generation communication systems for capacity expansion.

Donor unit, remote unit, and mobile communication base station system having same

A method and apparatus allocates a Physical Cell Identifier (PCID) in a wireless communication system by considering a PCID reuse factor. An allowable PCID list is acquired from a server. A set of candidate PCIDs is determined from the allowable PCID list according to PCID allocation conditions. A received signal strength of each cell using the determined set of candidate PCID is determined. At least one PCID is selected by using a PCID reuse factor and the received signal strength of each of the cells using the determined set of candidate PCIDs.

Method and apparatus for allocating physical cell identifier in wireless communication system

Growing community of inventors

Seoul, South Korea

Dae-Hyoung Hong