Telefonaktiebolaget Lm Ericsson (publ)

Andre Beliveau

Francois Sawyer

Brian Alleyne

Catherine Truchan

Knut Magnus Almgren

Carl Magnus Frodigh

Eric Dyke

Mahmoud Mohamed Bahnasy

Hangkan Gunnar Olofsson

Halima Elbiaze

Kenneth Yngve Wallstedt

Bochra Boughzala

Chakravarthy Padala

Karim Idoudi

Switch fabric in routers require tight characteristics in term of packet loss, fairness in bandwidth allocation and low latency for high-priority traffic. Such attributes have been resolved using specialized switch devices, but with the emergence of Data Center Bridging, the possibility of using commodity Ethernet switches to build switch fabric in routers is considered. Systems and methods are provided for adjusting a data transmission rate in accordance with an estimation of network path utilization.

Ethernet congestion control and prevention

Method and router supporting tracing of a packet therein. A first service module receives the packet and a memory module stores a tracing extension header. The extension header comprises an identifier of a receiving service module and a tracing identifier associated with the packet. The extension is stored following reception of the packet by the first service module. Optionally, the receiving module may be the first service module that further receives the packet through a network interface module. The first service module may also generate the tracing identifier associated with the packet that uniquely identifies the tracing in the receiving module. The router may comprise a second service module and a second memory module associated thereto. The first service module may further append the tracing extension header to the packet and forwards the packet to the second service module. The second memory module may then store the extension header thereupon.

Tracing support in a router

A method and system for neighbor cell list creation and verification in a telecommunications system is provided. Over a period of time measurements are performed on signals transmitted and received on measurement channels of cells neighboring the cell for which a neighbor cell list is being created. The results of the signal measurements are used to create an ordered list of the measurement channels on which the measurements were done. A neighbor cell list containing a desired number of cells is then created by placing a certain number of cells having the most interfered measurement channels in the neighbor cell list. The invention also presents a method and system for verifying an existing neighbor cell list. In the method and system measurements are performed on measurement channels of neighbor cells over a period of time. Periodically the measurement results are checked to determine if cells should be added to or deleted from the existing neighbor cell list.

Neighbor cell list creation and verification in a telecommunications

A method and apparatus for adaptively reconfiguring a neighbor cell list. For a selected cell of a cellular system, data associated with the selected cell and each of a plurality of neighboring base stations is collected. The collected data includes data on events indicative of the quality of handoffs from the selected cell to each of the neighboring base stations. The collected data also includes signal level measurements made on measurement channels of the neighboring base stations. A plurality of quality values, each associated with the selected cell and one of the neighboring cells, are then determined from the collected data. A neighbor cell list is then generated for the selected cell by determining the highest quality values, and placing the handoff measurement channels of the neighboring cells associated with the highest quality values in the neighbor cell list.

Adaptive neighbor cell list

A system and method for establishing and administering personal home areas for subscribers of a cellular telecommunications network. The system enables one or more Home areas to be designated for each subscriber. The Home areas may vary in size, and the system is capable of applying a different set of service parameters inside an area and outside the area. Each Home area is defined by designating the latitude and longitude coordinates, and the altitude of a subscriber's home location, as well as the radius of the Home area from the home location. A system operator may designate one of several alternate radii by entering the coordinates of the center of the area at various levels of precision, each of which corresponds to a different Home area radius.

Individually defined personal home area for subscribers in a cellular

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Laval, Canada

Andre Beliveau