Telefonaktiebolaget Lm Ericsson (publ)

Dan Antonsson

Paul Schliwa-Bertling

Claes-Göran Persson

Philip Hodges

Pär Gustavsson

Sofia Svedevall

Bo Ehrenholm

Fredrik Malmqvist

Described is a method for managing locally switched call connections in a wireless communication network comprising receiving, at a core network node, a first message indicating that a first user equipment connected via the locally switched call connection has been detected in a target radio access node and transmitting, triggered by the first message, a second message requesting a status change of the locally switched call connection to a second user equipment, such that a user plane data path from the first user equipment to the second user equipment is switched to a core network path. Moreover, the method is implemented in a network node, while the method steps can be executed by means of a computer program product comprising instruction sets performing each method step.

Local call local switching at handover

Methods and apparatus in a base station controller (BSC) or equivalent node for sharing a pool of radio transceivers are described. The BSC belongs to a first wireless telecommunication network, the pool of radio transceivers includes first radio transceivers for a first radio base station (RBS) belonging to the first wireless telecommunication network and second radio transceivers for a second RBS belonging to a second wireless telecommunication network, and the first and second radio transceivers have substantially the same geographic coverage. A method includes selecting a radio transceiver from the pool irrespective of whether the radio transceiver selected is a first radio transceiver or a second radio transceiver; and allocating a communication channel provided by the selected radio transceiver to a respective mobile station registered in at most one of the first and second telecommunication networks.

Methods and apparatus for transceiver allocation in mobile communication networks

The invention relates to a switching device for switching input data frames (IDF) from a plurality of N input lines (i , i , . . . i , i ) to output data frames (ODF) on a plurality of M output lines (o , o , . . . o , o ). The switching device contains a number K of switch pattern units, each containing a specific switch pattern. A number K of frame store memories (FSM ) each store all input data frames from all input lines in every frame period. Each frame store memory is used for selecting bits to a sub-group of M/K output lines. The parallelly working units (u , u , . . . u ) each sequentially select a plurality of M/K bits from the stored input data frames and simultaneously assign the selected bits to the output data frames on the respective sub-group of output lines. The selection and assigning of bits in each unit is performed at a M/K times higher clock rate than the bit rate on the input data lines. Thus, a bit-orientated reading of input data frames and writing of output data frames is achieved which allows a flexible switching of full rate as well as sub-rate input PCM data frames.

Device and a method for switching data frames

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Vikingstad, Sweden

Dan Antonsson