Adaptive measurement of round-trip time in automatic...

Details Adaptive measurement of round-trip time in automatic... Adaptive measurement of round-trip time in automatic...

H - Electricity

04

L

H04L 1/18 (2006.01) H04L 12/56 (2006.01) H04L 29/06 (2006.01) H04L 29/08 (2006.01)

Patent

CA 2475161

For efficient communications of data across various protocol layers in an ARQ communication system (100), a base station (101) receives radio link protocol (RLP) packets (509) of data. A processor (401) assembles received RLP packets (509) of data. The processor (401) is configured for determining whether a received RLP packet (509) of data is received out of sequence in a series of RLP packet (509) of data, starting an abort timer associated with a transmitted negative acknowledgment (NAK) for measuring an elapsed time of the abort timer, determining whether the elapsed time of said abort timer exceeds an abort period of time dynamic threshold that is based on statistical data of periods of time measured for previously received successful retransmissions of RLP packet (509) of data.

Afin d'effectuer des communications réussies de données sur différentes couches de protocole dans un système de communication ARQ (100), une station de base (101) reçoit des paquets (501) de protocole de liaison radio (RLP) de données sur un protocole de couche physique (509). Un processeur (401) assemble des paquets RLP reçus (509) de données. Le processeur (401) est configuré afin de déterminer si un paquet RLP reçu (509) de données est reçu en dehors de la séquence dans une série de paquets RLP (509) de données, de démarrer un temporisateur d'annulation associé à l'accusé négatif (NAK) transmis afin de mesurer le temps écoulé du temporisateur d'annulation, et de mesurer si le temps écoulé dudit temporisateur d'annulation excède une période annulée de temps mesurée pour les retransmissions réussies préalablement reçues de paquets RLP (509) de données.

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