Apparatus and method for measuring propagation delay in an...

H - Electricity – 04 – B

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H04B 17/00 (2006.01) H04B 7/216 (2006.01) H04B 7/26 (2006.01)

Patent

CA 2397323

Disclosed is a method for measuring a propagation delay value of a frame transmitted by a UE to a Node B in a TDD mobile communication system. The UE acquires synchronization with the Node B based on a downlink pilot channel signal transmitted in a period of a downlink pilot time slot, and determines an estimated round trip delay value T1 by comparing transmission power of a physical common channel signal in a first time slot with reception power of the physical common channel signal.

L'invention concerne un procédé de mesure d'une valeur de temps de propagation d'une trame émise par un équipement utilisateur vers un noeud B dans un système de communication mobile DRT. L'équipement utilisateur obtient une synchronisation avec le noeud B sur la base d'un signal de canal pilote de liaison descendante émis au cours d'une période d'un intervalle de temps pilote de liaison descendante, et détermine une valeur estimée de temps de propagation aller-retour T1 en comparant la puissance d'émission d'un signal de canal commun physique dans un premier intervalle de temps à la puissance de réception dudit signal.

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