PCS ARCHITECTURE

Personal Communication System PCS (personal communications service) is a wireless phone

service similar to cellular telephone. It's sometimes referred to as digital cellular. Technologies used for PCS Time Division Multiple Access (TDMA), Code Division Multiple Access (CDMA), Global System for Mobile (GSM) communication.  The goals of PCS are to provide a mobile user with voice,

data, and multimedia at any place, at any time, and in any format.

PCS

PCS technologies have grown rapidly in the telecommunications industry.

Two of the most popular are Cellular Telephony Cordless and low tier PCS technology The basic architecture consist of two parts Radio Network Wireline Transport Network

PCS ARCHITECTURE

PCS users carry mobile stations(MSs) to communicate with the base station in a PCS network.

MS is also referred to as handset,mobile phone,subscriber unit or portable.

The term subscriber unit is used when we describe wireless local loop.

The term portable is used when we describe the low tier system such as PACS.

The term mobile station is used when we describe the GSM system.

RADIO NETWORK

The radio coverage of a base station or a sector in the base station is called a cell.

For systems such as GSM and PACS, The base station system is partitioned into a controller and

radio transmitters/receivers. Controller: (Base station controller in GSM and radio port

control unit in PACS) Radio transmitters/receivers: (base transiever stations in GSM

and radio ports in PACS) The base stations usually reach the wireline transport network

via land links or dedicated microwave links.

RADIO NETWORK CONTINUED

The mobile switching center (MSC) connected to the base station is a special switch.

The MSC is connected to the PSTN to provide services between the PCS users and wireline users.

MSC also communicates with mobility databases to track the locations of mobile stations.

WIRELINE TRANSPORT NETWORK