Abstract: A method is provided of a sensor sensing a mobile user terminal for cellular radio telecommunications, the user terminal being associated with any one of a plurality of networks, each network having a distinct carrier frequency band for radio signals. The method comprises: broadcasting a common signal at each of multiple carrier frequency bands; the user terminal receiving the signal in the associated carrier frequency band of its network; the user terminal checking information in the received signal, and upon determining that the information is acceptable to allow connection to the sensor, the user terminal acknowledging to the sensor its receipt of the signal.

Abstract: A wireless communication technique provides mobility for a mobile station to communicate with an overlay network device, which is within a coverage area of an underlay network device, when the mobile station is within a coverage area of both devices. The overlay network device broadcasts at least two downlink channels. A cell code (e.g., a scrambling code or pseudo noise offset) of a first one of the downlink channels identifies an overlay network device exclusively. The mobile station can detect the first downlink channel responsive to an indication of the exclusive cell code from the underlay network device. A second one of the downlink channels allows for subsequent, ongoing communications between the mobile station and the overlay network device.

Abstract: A wireless communication technique provides mobility for a mobile station to communicate with an overlay network device, which is within a coverage area of an underlay network device, when the mobile station is within a coverage area of both devices. The overlay network device broadcasts at least two downlink channels. A cell code (e.g., a scrambling code or pseudo noise offset) of a first one of the downlink channels identifies an overlay network device exclusively. The mobile station can detect the first downlink channel responsive to an indication of the exclusive cell code from the underlay network device. A second one of the downlink channels allows for subsequent, ongoing communications between the mobile station and the overlay network device.

Abstract: A method is provided of identifying a handover target femtocell base station from among multiple femtocell base stations.

Abstract: A method and network node for controlling operation of first and second wireless communication networks both operating in a predetermined frequency band. The first communication network is operable to communicate within a plurality of first network channels within the predetermined frequency band. The second communication network is operable to communicate within at least one second network channel within the predetermined frequency band. Each of the second network channels co-exist in a frequency range occupied by a plurality of the first network channels.

Abstract: A method, a network access node and a computer program product are disclosed. The method of estimating a distance between at least one network access node and a network node of a wireless communications network, comprises: measuring total path losses between the at least one network access node and the network node on at least two different frequencies; determining frequency-dependent path losses of transmissions by the at least one network access node on the at least two different frequencies; and estimating a distance between the network node and the at least one network access node using the total path losses and the frequency-dependent path losses on the at least two different frequencies. By measuring the total path losses between network nodes on different frequencies and using frequency-dependent path losses determined for those frequencies, it is possible to estimate the distance between network nodes.

Abstract: A method is provided of a sensor sensing a mobile user terminal for cellular radio telecommunications, the user terminal being associated with any one of a plurality of networks, each network having a distinct carrier frequency band for radio signals. The method comprises: broadcasting a common signal at each of multiple carrier frequency bands; the user terminal receiving the signal in the associated carrier frequency band of its network; the user terminal checking information in the received signal, and upon determining that the information is acceptable to allow connection to the sensor, the user terminal acknowledging to the sensor its receipt of the signal.

Abstract: A method is provided of identifying a handover target femtocell base station from among multiple femtocell base stations.

Abstract: A user equipment identification detector for use in a wireless telecommunication network. The user equipment is operable to communicate with network nodes provided in the wireless telecommunication network. The detector comprises a proximity sensor and an interrogation unit. The proximity sensor is operable to detect placement of the user equipment within a predetermined detection region. The interrogation unit is operable to request an indication of identity from the user equipment detected in the predetermined detection region and communicate the indication of identity to a user equipment identification unit.

Abstract: A method and network node for controlling operation of first and second wireless communication networks both operating in a predetermined frequency band. The first communication network is operable to communicate within a plurality of first network channels within the predetermined frequency band. The second communication network is operable to communicate within at least one second network channel within the predetermined frequency band. Each of the second network channels co-exist in a frequency range occupied by a plurality of the first network channels.

Abstract: A method is provided of radio communication in a radio communications network comprising a macrocell base station and a femtocell base station. The method comprises the femtocell base station: transmitting in a first radio frequency band that is allocated to the macrocell, and detecting that a user terminal that is connected to the macrocell base station is in the femtocell. In response to said detecting the user terminal as being in the femtocell, the femtocell base station ceases to use that frequency band at least in the region in which the user terminal is located so as to avoid unacceptable interference to the user terminal.

Abstract: Wireless access to a network 2 by an isolated user 1 includes the isolated user 1 transmitting a wireless signal intended to produce interference at nodes included in a group 3, 4 and 9 of nodes, that have access to the network 2. Upon the interference being detected by a member of one of the groups, and a link established between the isolated user 1 and the member of the group, access to the network 2 is arranged for the isolated user 1. In one method, the isolated user is unlicensed and seeks access to the network via a licensed part of the wireless spectrum.

Abstract: A method for operating a communications arrangement comprising femto cells includes opportunistic use of the spectrum by a femto cell. The method may involve multi-operator spectrum re-use and/or multi-service spectrum re-use. The femto cell may use parts of the spectrum when they are not used by primary license holders. A femto base station 12 includes a spectrum decision unit 20 for using information about primary usage to determine operation of the femto base station 12 to achieve opportunistic re-use.

Abstract: A method is provided of radio communication in a radio communications network comprising a macrocell base station and a femtocell base station. The method comprises the femtocell base station: transmitting in a first radio frequency band that is allocated to the macrocell, and detecting that a user terminal that is connected to the macrocell base station is in the femtocell. In response to said detecting the user terminal as being in the femtocell, the femtocell base station ceases to use that frequency band at least in the region in which the user terminal is located so as to avoid unacceptable interference to the user terminal.

Abstract: The present invention provides a method involving at least one first circuit having at least one first input, at least one second input, and at least one output. The method includes determining at least one first value of at least one output of a second circuit based on at least one first value of the at least one first input. The second circuit has been configured using first configuration information generated based on the first circuit and at least one first value of the at least one second input. The method also includes generating, concurrently with determining the at least one first value of said at least one output, second configuration information based on the first circuit and at least one second value of the at least one second input.

Abstract: A wireless communication technique provides mobility for a mobile station (52) to communicate with an overlay network device (40), which is within a coverage area (34) of an underlay network device (24), when the mobile station (52) is within a coverage area (42) of both devices. The overlay network device (40) broadcasts at least two downlink channels. A cell code (e.g., a scrambling code or pseudo noise offset) of a first one of the downlink channels identifies an overlay network device (40) exclusively. The mobile station (52) can detect the first downlink channel responsive to an indication of the exclusive cell code from the underlay network device. A second one of the downlink channels allows for subsequent, ongoing communications between the mobile station and the overlay network device.

Abstract: Wireless access to a network 2 by an isolated user 1 includes the isolated user 1 transmitting a wireless signal intended to produce interference at nodes included in a group 3, 4 and 9 of nodes, that have access to the network 2. Upon the interference being detected by a member of one of the groups, and a link established between the isolated user 1 and the member of the group, access to the network 2 is arranged for the isolated user 1. In one method, the isolated user is unlicensed and seeks access to the network via a licensed part of the wireless spectrum.