Alcatel USA Sourcing, L.p.

Airspan Communications Corporation

Dsc Communications Corporation

Airspan Networks Inc.

Guy A Cooper

Jonathan A Thompson

Jonathan F Nethercott

Martin Lysejko

Richard M Lamkin

Joemanne Chi Cheung Yeung

Ian L Cooper

Gavin J Meakes

Shashikant Bhagalia

Andrew M Walding

Robert G Rhodes

A communications protocol interface is arranged at a central station of a telecommunications network and is responsive to a control message received from a network controller in accordance with a first message protocol to transmit the control message in accordance with a second message protocol to subscriber stations and is responsive to a control message received in accordance with the second message protocol to transmit the control message to the network controller in accordance with the first message protocol. The first message protocol is a balanced protocol with the communications protocol converter or the network controller able to initiate an exchange of information. The second message protocol is a master-slave protocol with the communications protocol interface acting as master. The second control message protocol operates over central station bus for communicating with at least one network element in the central station.

Control message transmission in telecommunications systems

The present invention provides a system for handling telecommunications signals passed between a first and second element of a telecommunications network, the first element having an interface for transmitting and receiving signals in a first protocol, and the second element having an interface for transmitting and receiving signals in a second protocol. The system of the present invention comprises a first interface unit for receiving a first telecommunications signal transmitted in one of said first and second protocols between said first and second elements, the first interface unit being arranged to separate traffic bearing channels from non-traffic bearing channels within the first telecommunications signal. A traffic management element is then provided for performing a cross-connection function to map the traffic bearing channels to the appropriate format for the other of said protocols, whilst a protocol conversion element is provided for performing predetermined protocol conversion steps on the non-traffic bearing channels in order to regenerate those non-traffic bearing channels in the other of said protocols. Further, a second interface unit is provided for combining the channels as output by the traffic management element and the protocol conversion element in order to create a second telecommunications signal in the other of said protocols, the second interface unit being arranged to output the second telecommunications signal. Preferably, said first protocol has a concentrated format, and said second protocol has an unconcentrated format.

Handling of telecommunications signals passed between elements of a telecommunications network

A wireless telecommunications systems (,) includes a central terminal (,) for transmitting and receiving radio frequency signals to and from a subscriber terminal (,). A downlink communication path is established from a transmitter (,) of the central terminal (,) to a receiver (,) of the subscriber terminal (,). A downlink signal (,) is transmitted from the transmitter (,) to the receiver (,) during setup and operation of the wireless telecommunications system (,). The receiver (,) of the subscriber terminal (,) compares a code and phase of a master code sequence that includes an orthogonal code in the downlink signal (,) to a code and phase of a slave code sequence of the receiver (,). The receiver (,) adjusts the phase of the slave code sequence until a match is obtained with the master code sequence. The receiver (,) monitors the downlink signal (,) to identify the frame alignment signal (,) and establishes the downlink communication path when two successive frame alignment signals (,) are identified. A channel identifier signal within the downlink signal is identified and used to identify the orthogonal code included in the master code sequence. The channel identifier signal is matched to a reference identifier code to verify that the correct downlink signal is being read.

Apparatus and method of establishing and maintaining communication paths in a wireless telecommunications system

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

Remote control of wireless telecommunications systems

The present invention provides a central terminal (10), and method of operation of such a central terminal (10), for managing calls between a telephone exchange (500) connectable to the central terminal (10) and a plurality of subscriber terminals (520), the central terminal being arranged to communicate with the subscriber terminals (520) via wireless links (515). According to the invention, the central terminal (10) comprises a call manager (560) for receiving a call from the telephone exchange (500) or from subscriber terminals (520), and for generating a call instance to represent said call, the call instance having a plurality of attribute fields to store attributes defining the call, at least one attribute being provided by the call. Further, the central terminal (10) comprises a storage unit arranged to store a matrix of interrelated data elements, accessible by the call instance, for enabling other attributes of the call to be determined from said at least one attribute provided by the call, the call instance being arranged to store these other attributes within the appropriate attribute fields of the call instance.

Call instance representation of a call for call management in a wireless

The present invention provides a central terminal (10), and method of operation of such a central terminal (10), for routing calls between a telephone exchange (18) connectable to the central terminal (10) and a plurality of subscriber terminals (20), the central terminal (10) being arranged to communicate with the subscriber terminals (20) via wireless links (515), and each subscriber terminal (20) being arranged to support one or more lines (525) to subscriber telecommunications equipment. According to the invention, the central terminal (10) comprises a storage unit arranged to store a phone number list (535) associating phone numbers for said subscriber telecommunications equipment with corresponding of said lines (525) to subscriber telecommunications equipment.

Call routing in a wireless telecommunications system

The present invention provides a client station and method for controlling a telecommunications system, the telecommunications system including a central station and a server station. The server station is arranged to maintain an object model thereon representing the central station, and is connectable to the central station to send control signals to the central station in accordance with the object model. The client station comprises a communications manager for establishing a connection with the server station to enable communication between the client station and the server station, thereby enabling the client station to manage the object model maintained on the server. The client station has a memory for storing a portion of the object model, and a retrieval means for retrieving from the server station, as required by the client station, additional objects of the object model for expanding the portion of the object model stored in the memory.

Control system for a telecommunications system

The present invention provides a client station and method for controlling a telecommunications system, the telecommunications system including a central station and a server station. The server station is arranged to maintain an object model thereon representing the central station, and is connectable to the central station to send control signals to the central station in accordance with the object model. The client station comprises a communications manager for establishing first and second interfaces with the server station to enable communication between the client station and the server station, thereby to manage the object model maintained on the server. The client station has a memory for storing a portion of the object model, and a processor for processing commands received by the client station via the first interface from a queue maintained on the server station. Further, there is provided a retrieval means, responsive to a command requiring an operation to be performed on an object not currently in the portion of the object model stored in the memory, for retrieving from the server station via the second interface said object for inclusion in the portion of the object model stored in the memory, during which time no further commands are processed by the processor.

Handling of commands passed between the server and client stations of a

The present invention provides a client station and method for controlling a telecommunications system, the telecommunications system including a central station and a server station. The server station is arranged to maintain an object model thereon representing the central station, and is connectable to the central station to send control signals to the central station in accordance with the object model. The client station comprises a communications manager for establishing a connection with the server station to enable communication between the client station and the server station, thereby to manage the object model maintained on the server. The client station has a memory for storing a portion of the object model, and a processor for processing commands received by the client station to determine whether status information associated with each object in the portion of the object model should be altered, and for altering the status information based on said commands.

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.

Subscriber terminal for a wireless telecommunications system

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.

Software download for a subscriber terminal of a wireless

A communications interface is used in a telecommunications network station which including a number of network elements, a controller for controlling the network elements and an internal bus interconnecting the controller and the network elements. The controller operates as a busmaster on the bus and each of the network elements operates as a slave on the bus. The communications interface has a pool of buffers for temporary message storage and a polling function for temporarily storing a message received from the bus in a buffer and/or for taking a message from a buffer for transmission over the bus. A binary sequence number is inverted for a reply if a received message is valid, otherwise it is not changed for the reply. A message is re-sent when the sequence number in a reply has not changed.

A protocol converter for a wireless telecommunications system, the protocol converter comprising: an interface for receiving first protocol message packets from at least one control station of the telecommunications system and for transmitting first protocol message packets to the at least one control station; and a server in communication with the interface for maintaining the protocol converter and an object based telecommunications system control system; wherein the protocol converter converts first protocol message packets received from the interface into operations and converts operations into first protocol message packets for subsequent transmission to the at least one control station via the interface, the operations being received from and applied to the object based control system maintained in the server thereby to control the wireless telecommunications system.

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Windsor, United Kingdom

Guy A Cooper