Method and apparatus for seamless handover in a wireless communication network

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United States of America Patent

PATENT NO RE49808
SERIAL NO

17154128

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Abstract

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A mobile station is configured to support handover from a source base station to a target base station. The mobile station receives signaling from the target base station that indicates Packet Data Convergence Protocol (PDCP) protocol data units which have been successfully received at the target base station. In response, the mobile station generates further PDCP protocol data units for missing PDCP service data units from corresponding PDCP service data units buffered at the mobile station. The generating comprises using a different header compression state from that which was used for the missing PDCP service data units and ciphering specific to a connection with the target base station. The mobile station transmits the further PDCP protocol data units to the target base station.

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Patent Owner(s)

Patent OwnerAddress
TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)STOCKHOLM SWE STOCKHOLM

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Meyer, Michael Aachen, DE 396 5194
Peisa, Janne Espoo, FI 157 3414
Pelletier, Ghyslain Laval, CA 475 15741
Sågfors, Mats Fredrik Kyrkslätt, FI 20 54
Stattin, Magnus Upplands Väsby, SE 231 2752
Torsner, Per Johan Kyrkslätt, FI 46 383
Wiemann, Henning Aachen, DE 187 2664

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