Telecommunications – Transmitter and receiver at separate stations – Plural transmitters or receivers
Reexamination Certificate
2003-05-15
2008-08-12
Trinh, Tan (Department: 2618)
Telecommunications
Transmitter and receiver at separate stations
Plural transmitters or receivers
C455S069000, C455S013400
Reexamination Certificate
active
07412252
ABSTRACT:
A system, transmitter, receiver and method for communication power control by the transmitting entity (150A) keeping a sequence number counter (200) per UE (130A) that is incremented whenever a common channel transmission is made specifically to that UE, the value of the counter is signalled inside the message itself (or possibly by other signalling means) across the Uu interface, when the intended recipient UE correctly decodes a message, it also decodes the counter value, it compares this counter value with the last correctly received sequence number, which it holds in a memory (300), and deduces whether there are any missing sequence numbers, and accordingly effects transmission power control, this provides the advantage that the transmitting entity is able to provide information to the receiving entity that enables a correct recipient-specific error statistic to be generated, when applied to 3GPP release 5 HS-SCCH for TDD, this technique is able to assist the UE in calculating a correct error statistic for the HS-SCCH enabling the UE then to correctly set the SIR target to meet the desired HS-SCCH error target, and to then consequently correctly set the TPC command direction as “power-up” or “power-down”.
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IPWireless, Inc.
Morrison & Foerster / LLP
Trinh Tan
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