Abstract: A method and apparatus for redirecting a wireless communication unit (113) from a LTE cell to a neighboring 3G or 2G cell for the purposes of performing a procedure which is available in the 2G or 3G cell but not available in the LTE cell includes the provision of an additional LTE access point (109) within the coverage area of an LTE macrocell. The additional LTE access point (109) is arranged to capture a wireless communication unit (113) which is camped onto the LTE macrocell and redirect it to a 3G/2G cell irrespective of whether or not a better service may be provided in the 2G/3G cell. The invention has application to presence detection where collection of wireless communication units' and subscribers' IDs for such a purpose is possible in 3G and 2G cells but not in LTE cells.

Abstract: A presence service can be provided by an access point 101 serving a small cell 100 by rejecting a request for registration from a user equipment 103 after acquiring its IMSI and sending the IMSI to a presence database 105. The user equipment determines if the cell is a presence cell by comparing the cell's location area code (LAC) with LACs stored in a list and looking for a match. It the cell is a presence cell then the user equipment, rather than placing the LAC in a forbidden list, re-tries registration again but only after a pre-set time period of 5-10 minutes has elapsed. This has the advantage that a presence service can be notified of subscribers who linger in a particular area or return to that area at regular intervals.

Abstract: A presence service can be provided by an access point 101 serving a small cell 100 by rejecting a request for registration from a user equipment 103 after acquiring its IMSI and sending the IMSI to a presence database 105. The user equipment determines if the cell is a presence cell by comparing the cell's location area code (LAC) with LACs stored in a list and looking for a match. It the cell is a presence cell then the user equipment, rather than placing the LAC in a forbidden list, re-tries registration again but only after a pre-set time period of 5-10 minutes has elapsed. This has the advantage that a presence service can be notified of subscribers who linger in a particular area or return to that area at regular intervals.

Abstract: A method and apparatus for redirecting a wireless communication unit (113) from a LTE cell to a neighbouring 3G or 2G cell for the purposes of performing a procedure which is available in the 2G or 3G cell but not available in the LTE cell includes the provision of an additional LTE access point (109) within the coverage area of an LTE macrocell. The additional LTE access point (109) is arranged to capture a wireless communication unit (113) which is camped onto the LTE macrocell and redirect it to a 3G/2G cell irrespective of whether or not a better service may be provided in the 2G/3G cell. The invention has application to presence detection where collection of wireless communication units' and subscribers' IDs for such a purpose is possible in 3G and 2G cells but not in LTE cells.

Abstract: A network element comprises a signal processor supporting communications between a subscriber unit (UE) and a core network (CN). The signal processor is arranged to: receive a first update request message (location or routing area) from the subscriber unit; forward the first update request message to the core network; receive from the CN a first update accept (or response) message; store at least a part of the accept message content; forward the first update response message to the subscriber unit; receive a second update request from the subscriber unit; create a second update accept (or response) message using the at least part of the stored content; and respond to the subscriber unit second update accept (or response) message direct.

Abstract: A network element comprises a signal processor supporting communications between a subscriber unit (UE) and a core network (CN). The signal processor is arranged to: receive a first update request message (location or routing area) from the subscriber unit; forward the first update request message to the core network; receive from the CN a first update accept (or response) message; store at least a part of the accept message content; forward the first update response message to the subscriber unit; receive a second update request from the subscriber unit; create a second update accept (or response) message using the at least part of the stored content; and respond to the subscriber unit second update accept (or response) message direct.

Abstract: A cellular radio telecommunication handover system and method for enabling the handover of a mobile telecommunications device between a licensed (cellular) network and an unlicensed mobile network comprising a plurality of low power access points having all of them the same common cell identity (GGI) is disclosed. The mobile telecommunications device establishes a handover between one access point of the licensed network and another access point of the unlicensed network by communication of handover resources therebetween.

Abstract: A network element (230) for communicating with a wireless communication unit (214) in a communication cell (200) of a communication system (200) comprises a receiver arranged to perform a frequency sweep across a plurality of operational frequencies. Signal processing logic (255), operably coupled to the receiver, processes the received signals from the frequency sweep and providing an estimate of a level of interference at a number of frequency carriers of the swept frequencies. The signal processing logic (255) is capable of determining whether a transmit power level at a frequency selected from the processed frequency sweep satisfies at least one predetermined quality criterion of the communication system (200). A transmitter (270) is arranged, upon initial activation of the network element (230), to transmit to a wireless communication unit at the determined transmit power level.

Abstract: A network element (230) for communicating with a wireless communication unit (214) in a communication cell (200) of a communication system (200) comprises a receiver arranged to perform a frequency sweep across a plurality of operational frequencies. Signal processing logic (255), operably coupled to the receiver, processes the received signals from the frequency sweep and providing an estimate of a level of interference at a number of frequency carriers of the swept frequencies. The signal processing logic (255) is capable of determining whether a transmit power level at a frequency selected from the processed frequency sweep satisfies at least one predetermined quality criterion of the communication system (200). A transmitter (270) is arranged, upon initial activation of the network element (230), to transmit to a wireless communication unit at the determined transmit power level.

Abstract: A Local Area network is disclosed in which host specific configuration information, and in particular VSI, can be distributed. A network server is disclosed that is capable of supplying both network configuration information, including IP addresses, and VSI. This is used in addition to existing network servers. A relay agent is also supplied that is configured to add VSI to the network configuration information supplied by an existing network server. A network server is also disclosed that provides VSI only in response to DHCP INFORM requests.

Abstract: A cellular radio telecommunication system comprising a BaseStation Transceiver System BTS and Transcoder Rate Adaptor TRAU in which the TRAU implements pre-coding of Enhanced Full-Rate EFR speech data for error checking at the Mobile Station MS. The BTS and TRAU may be co-located, or separated by a transmission link which has very low error rates. Error detection bits in the TRAU frame carrying Enhanced Full Rate EFR speech data may conform to a predetermined pattern which is recognised by the BTS and ignored for error correction. These error detection bits may be used across the BTS-TRAU interface for error checking of all the speech data bits of the TRAU frame evenly. The TRAU and BTS may negotiate the error checking protocol to be used so that this conforms to that used by the BTS.

Abstract: A LAN comprises a plurality of nodes (6, 7) connected by LAN cables (14, 15) with conductors (9) dedicated to transmission of timing signals (2) alone or in addition to a power supply for equipment at the node. The conductors (9) may comprise a twisted pair. The conductors (9) may be connected between all ports or may be connected via a wiring box (11). The timing signal may be provided by a source (2) at a LAN connection device (1) or the wiring box (11) or at a node (17).

Abstract: A cellular radio telecommunication system is described that allows the beacon frequencies in the system that distributes the common control channel to carry more traffic channels than the number of remaining TDM slots, by reusing the same slot in different parts of the network to carry different traffic to different mobiles. This is achieved by monitoring the location in the network of each mobile which is assigned to a traffic channel on the beacon frequency, using a controlling agent, and ensuring that any basestation assigned to the beacon frequency which is sufficiently close to this mobile transmits exactly the same data in the slot carrying this traffic channel, but otherwise allows the slot to be reallocated.

Abstract: A cellular radio telecommunication system comprises a plurality of base stations (BS1, BS2, BS3, BS4) and a basestation controller (PC). The basestation controlled is arranged to control the base stations so that at least two of the base stations use the same broadcast control channel, each basestation being substantially synchronised with respect to each other. The basestation controller further controls the base stations to use dedicated traffic and signalling channels within the immediate vicinity of each basestations. The telecommunication system seeks to provided the maximum space diversity gained in traffic capacity by controlling the base stations so that they use a single broadcast synchronise control channel and separately handle dedicated traffic and signalling channels in their immediate vicinity.

Abstract: The present invention concerns a method for transmitting audio information to a receiver, in which first audio information is transmitted from a first source to the receivertogether with other information comprising addressing data and a data signal dependent on the addressing data is selectively transmitted from the receiver to a service provider. The data signal received at the service provider is matched with respective further audio information and the respective further audio information is then transmitted from a second source to the receiver. Thus, a web of recursively linked audio material may selectively be provided to a user of the receiver.

Abstract: A radio telecommunication system, and in particular an in-building system, comprises a number of basestations connected together by a local area network (LAN) at least one of the basestations (BS) is capable of receiving a control channel transmitted by one or more of the other basestations (BS) of the telecommunication systems, from which it derives frequency reference and time base synchronisation data to enable the basestation to correct the frequency and time offset of its own transmissions with respect to the other basestations (BS) in the system. Also connected to the LAN is a controller (PC). The controller receives transmission measurement signals from each of the basestations (BS) and processes these transmission measurement signals to select radio frequency channels on which the basestations of the system should transmit to minimise interference with an external telecommunications system.