Method and apparatus for pdcp reordering at handoff

Details Method and apparatus for pdcp reordering at handoff Method and apparatus for pdcp reordering at handoff

H - Electricity

04

W

H04W 36/02 (2009.01)

Patent

CA 2687862

Systems and methodologies are described that facilitate management of data delivery and processing in a wireless communication system and, more particularly, that support Packet Data Convergence Protocol (PDCP) reordering of packets during a handoff operation. Various aspects described herein can mitigate processing delays associated with PDCP reordering of packets at handoff by determining, communicating, and/or otherwise identifying one or more indicators during handoff that facilitate lossless communication of packets to a terminal with minimal delay. These indicators can include sequence number information for a source Node B, information regarding a step or jump size applied to a sequence number by a target Node B, a reset command, and/or other suitable indicators.

L'invention concerne des systèmes et méthodologies qui facilitent la gestion de livraison de données et le traitement dans un système de communication sans fil et, plus particulièrement, qui supportent un reclassement par ordre de paquets de protocole de convergence de données de paquet (PDCP) pendant une opération de transfert. Divers aspects décrits ici peuvent atténuer les retards de traitement associés au reclassement par ordre de paquets PDCP pour transfert en déterminant, communiquant et/ou sinon identifiant un ou supérieur indicateurs qui facilitent une communication sans perte de paquets à un terminal avec un retard minimal. Ces indicateurs peuvent comprendre des informations de nombre de séquence pour un nAEud de source B, des informations concernant une étape ou taille de saut appliquée à un nombre de séquence par un nAEud cible B, un ordre de réinitialisation et/ou d'autres indicateurs appropriés.

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