Telefonaktiebolaget Lm Ericsson (publ)

Ericsson Gmbh

Bagher Zadeh

Shahrokh Amirijoo

Ranjit Bhatia

Cormac Mullally

David Quinlan

Siavash Farhadi

The present invention relates to a method and apparatus for automatically assigning cell identifier values in a communication network and to a method and apparatus for managing the assignment of cell identifier values in a communication network. In particular, the present invention relates to the management and assignment of cell identifier values that are required to be unique between adjacent cells, in a border region within a communication network in which cells from two or more cell sets are present. The present invention provides a novel method and apparatus for assigning cell identifier values in a communication network and for managing the assignment of cell identifier values in a communication network. Embodiments of the invention enable the automatic assignment of cell identifiers in a communication network, such as the assignment of physical cell identities (PCI) and scrambling codes (SC) in a Long Term Evolution (LTE) network. The need for manual administration in border areas between cell sets managed by different Operation Support Systems (OSSs) can therefore be reduced or eliminated.

Method and apparatus for assigning cell identifier values and method and apparatus for managing assignment of cell identifier values in a communication network

A telecommunications system and method is disclosed for adaptively configuring the cell structure of a cell having at least two carrier frequencies between an overlaid/underlaid (OL/UL) sub-cell structure and a normal cell structure based on the position of mobile stations within the cell. A Base Station Controller (BSC) for the cell determines the position of all of the mobile stations involved in a call connection within the cell relative to the cell site. If the number of mobile stations within a predefined distance from the cell site is greater than a channel threshold, the BSC adapts the cell configuration to the OL/UL sub-cell structure. The channel threshold is an operator-defined percentage of available channels (throughout the cell or within either the overlaid or underlaid cell). However, if the BSC determines that the percentage of mobile stations closer than the predefined distance is less than the channel threshold, the BSC maintains the normal cell structure.

System and method for adaptive configuration of cell structure based on the position of mobile stations

A telecommunications system and method is disclosed for improving the quality of data calls within a cellular network by dynamically changing the air interface data rate for transparent and non-transparent data services. As the quality of a higher data rate radio link deteriorates below a specified upper quality threshold due to interference, a change of channel coding to a lower data rate is ordered by the network. If the radio link quality measurements after a specified period of time indicate that the quality level has exceeded a specified lower quality threshold, the data rate is changed back to the higher data rate.

System and method for modifying the data rate for data calls in a cellular network

A wireless communications system ( ) capable of delivering Time Of Arrival (TOA) positioning data to at least one externally operated and maintained requesting agent ( ), including a gateway ( ) to the external agent ( ), which provides an interface to the requesting agent ( ). The system ( )also includes a Base Station Subsystem (BSS) ( ) and an array of Location Management Units (LMUs) ( ). The BSS ( ) serves at least one mobile set ( ) for which TOA positioning data is requested and is accessible by the requesting agent ( ) through the gateway ( ). The LMUs ( ) are configured to compute positioning coordinates for the mobile set ( ), wherein the BSS ( ) includes positioning functions ( ) are moved to the BSC ( ) or integrated within the BTS ( ) so that control of the LMUs ( ) is accomplished at the BSS ( ).

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Solna, Sweden

Bagher Zadeh