H - Electricity – 04 – L
Patent
H - Electricity
04
L
H04L 12/56 (2006.01) H04L 29/06 (2006.01) H04Q 7/38 (2006.01)
Patent
CA 2282257
A method and apparatus of improving user response time during cellular hand- offs and radio frequency changes in a Transmission Control Protocol/Internet Protocol (TCP/IP) mobile environment. In the mobile environment there is at least a mobile end station (20), a mobile data base station (22), a mobile data intermediate system (MDIS) (30) and a fixed end station (40). The MDIS (30) keeps track of the mobile end station (20) as it roams through the mobile environment. As a result, the MDIS (30) can distinguish between delays due to network congestion and delays due to cellular hand-offs. Further, the mobile data base station (22) informs the MDIS (30) of any changes in the radio frequency signal, thus allowing the MDIS (30) to also recognize delays due to changes in the radio frequency signal. With the knowledge of being able to identify the cause of the delays, the MDIS (30) is able to initiate or suppress a congestion control and recovery process.
L'invention porte sur un procédé et un appareil améliorant le temps de réponse de l'abonné lors de transferts entre cellules ou de changements de fréquence radio dans un environnement mobile utilisant un protocole de gestion des transmissions/protocole Internet (TCP/IP). L'environnement mobile comporte au moins une station mobile terminale (20), une station mobile de base (22), un service intermédiaire mobile (30) de transmission de données (SIMTD) et une station terminale fixe (40). Le SIMTD (30) garde la trace de la station mobile terminale (20) évoluant dans l'environnement mobile et peut ainsi distinguer entre les retards dus à la congestion du réseau et les retards dus aux transferts entre cellules. De plus, la station mobile de base (22) informe le SIMTD (30) de toute modification du signal R.F., ce qui lui permet de reconnaître les retards dus auxdites modifications. Cette capacité d'identification de la cause des retards permet au SIMTD (30) de lancer ou d'arrêter un processus de gestion des congestions et de reprise.
Andjelic Dragan
Maini Viji
Park Sung-Woo
Gowling Lafleur Henderson Llp
Motorola Inc.
Motorola Mobility Inc.
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