Abstract: A first aspect of the invention discloses a local server station for controlling a wireless telecommunications system comprising a plurality of remote server stations and client stations, the local server station comprising: an object based control system maintained at the local server station for controlling the wireless telecommunications system wherein the local server station is connected by way of an interface with at least one control station of the wireless telecommunications system, and a reconfigurable dynamic interface for communication with at least one of the remote servers and/or client stations.

Abstract: The present invention provides a transmission controller and method for processing data items to be transmitted over a wireless link connecting a central terminal and a subscriber terminal of a wireless telecommunications system, a single frequency channel being employed for transmitting data items pertaining to a plurality of wireless links. The transmission controller comprises an orthogonal code generator for providing an orthogonal code from a set of `m` orthogonal codes used to create `m` orthogonal channels within the single frequency channel, and a first encoder for combining a data item to be transmitted on the single frequency channel with said orthogonal code from the orthogonal code generator, the orthogonal code determining the orthogonal channel over which the data item is transmitted, whereby data items pertaining to different wireless links may be transmitted simultaneously within different orthogonal channels of said single frequency channel.

Abstract: Message packets for passing control information between a central telecommunications station and a controller for one or more telecommunications stations include: a packet header including a packet start pattern and a message size identifier for individually setting a message size for respective packets; a variable number of message records, each having a size relating to the message size selected for the packet; and a packet terminator including a unique packet end pattern invalid as an initial bit sequence for a message record. The tracking of transmissions is facilitated by the use of cyclical sequence numbers and an arrangement whereby up to a predetermined number of messages may be sent without an acknowledgment.

Abstract: The present invention provides a bandwidth management system, a subscriber terminal, and a method for managing calls between a central terminal and a subscriber terminal of a wireless telecommunications system, a number of items of telecommunications equipment being connectable to the subscriber terminal. The subscriber terminal is arranged to pass call data between said items of telecommunications equipment and the central terminal via a wireless link, the wireless link being provided on a frequency channel with a predetermined maximum call data bandwidth for the transmission of said call data. The bandwidth management system comprises a bandwidth manager for maintaining in a storage information about allocation of the predetermined maximum call data bandwidth amongst calls currently being handled on the frequency channel.

Abstract: A wireless telecommunications system (1) includes a central terminal (10) for transmitting and receiving radio frequency signals to and from a subscriber terminal (20). A downlink communication path is established from a transmitter (200) of the central terminal (10) to a receiver (202) of the subscriber terminal (20). A downlink signal (212) is transmitted from the transmitter (200) to the receiver (202) during setup and operation of the wireless telecommunications system (1). The downlink signal (212) includes an overhead channel (224) having a code synchronization signal (234). The code synchronization signal (234) is capable of adjusting a phase of a transmitter (204) in the subscriber terminal (20). A receiver (206) in the central terminal (10) monitors an uplink signal (214) transmitted by the transmitter (204) in the subscriber terminal and provides changes to the code synchronization signal (234) such that the transmitter (204) is synchronized to the receiver (206).

Abstract: The present invention provides a housing for holding a rack of equipment (210), comprising a main enclosure portion (200) for retaining the rack (210), the main enclosure portion (200) having a first opening for receiving the rack (210) and comprising a first wall (310) defining at least one edge of said first opening. A wiring portion (205), distinct from said main enclosure portion (200), is also provided for receiving wires (220) to be routed to said rack (210), and the first wall (310) is arranged to separate the wiring portion (205) from said main enclosure portion (200), such that the wiring portion (205) is located between the first wall (310) and a front face of the housing. Due to the proximity of the wiring portion (205) to the front face of the housing, this arrangement significantly improves access to the wiring of the housing, thereby reducing the time taken to install and commission a system, and to perform routine checks on the wiring.

Abstract: The present invention provides a housing for holding a rack of equipment(210), the housing comprising a main enclosure portion (200) for retaining the rack (210), and the main enclosure portion (200) comprising a conductive wall (310). A wiring portion (205) distinct from said main enclosure portion (200) is also provided for receiving one or more wires (220) to be routed to said rack (210), the wires (220) being routed through said conductive wall (310) to said rack (210), and an outer portion of the wires (200) being earthed against said conductive wall (310), thereby inhibiting the transmission of noise along said wires (220) to said rack (210).

Abstract: A subscriber station for the wireless connection of user telecommunications equipment to a remote central station of a wireless telecommunications system includes a transmitter/receiver for wireless communication with the central station, at least one telephone line for connection to subscriber telecommunications equipment and a communications controller connected between the transmitter/receiver and the telephone line for processing signals for transmission and/or received signals The subscriber station is configurable in response to wireless programming signals representative of control code down-loaded from the central station By enabling the down-loading of software for programming the subscriber station, the flexibility and convenience of configuring the subscriber station, both initially and subsequently, is greatly enhanced

Abstract: A wireless telecommunications system (1) includes a central terminal (10) for transmitting and receiving radio frequency signals to and from a subscriber terminal (20). A downlink communication path is established from a transmitter (200) of the central terminal (10) to a receiver (202) of the subscriber terminal (20). A downlink signal (212) is transmitted from the transmitter (200) to the receiver (202) during setup and operation of the wireless telecommunications system (1). The receiver (202) of the subscriber terminal (20) compares a code and phase of a master code sequence in the downlink signal (212) to a code and phase of a slave code sequence of the receiver (202). The receiver (202) adjusts the phase of the slave code sequence until a match is obtained with the master code sequence. Matching of the slave code sequence to the master code sequence facilitates establishment of the downlink communication path.

Abstract: A subscriber station of a wireless telecommunications system includes a transmitter/receiver (24) for wireless communication with a central station and for processing signals for transmission and/or received signals. The transmitter/receiver (24) is connected via a link (408) to a supply unit (30) for connection to one or more telephone lines for user telecommunications equipment. The link (408) carries telephone call data for one or more telephone lines and subscriber station control data in accordance with an internal protocol. The internal protocol control data comprises operational status parameters of the subscriber station. The provision of internal protocol control data including operation status parameters on a link between the transmitter/receiver and the supply unit thus provides a point of access for monitoring the operational status of the subscriber station.

Abstract: Software is down-loaded from a central station of a wireless telecommunications system to a remote subscriber station for configuring the remote subscriber station to permit wireless connection of user telecommunications equipment at the remote subscriber station to the central station. A multi-layer down-load protocol includes a number of independent protocol layers, preferably operating a master-slave configuration. Each layer controls respective sequence numbers to ensure system integrity. Control software is arranged with a device independent boot-strap and a set of device specific external service parameters to provide portability.

Abstract: A subscriber station monitor system is provided for a subscriber station of a wireless telecommunications system. The subscriber station includes a transmitter/receiver for wireless communication with a central station and a communications controller for processing signals for transmission and/or received signals, a supply unit for connection to one or more telephone lines for user telecommunications equipment and a link connecting the communications controller to the supply unit, control data being passed in accordance with an internal protocol between the communications controller and the supply unit via the link. The station monitor system comprises a display and at least one user input device, a connector to the link and a protocol interpreter for extracting control data to be displayed on the display for monitoring the operation of the subscriber station and/or for inserting input control data to the link for configuring the subscriber station.

Abstract: A subscriber station provides the wireless connection of user telecommunications equipment to a remote central station of a wireless telecommunications system. The subscriber station includes a transmitter/receiver for wireless communication with a central station and for processing signals for transmission and/or received signals, at least one telephone line for connection to subscriber telecommunications equipment, and a high impedance test circuit connected across a telephone line under test. The use of a high impedance test circuit means that the test circuit can effectively be connected permanently across a telephone line under test.