Procedure to determine radio link condition using radio link...

Details Procedure to determine radio link condition using radio link... Procedure to determine radio link condition using radio link...

2007-05-01

2007-05-01

Vo, Nguyen T. (Department: 2618)

Multiplex communications

Communication over free space

Having a plurality of contiguous regions served by...

C455S452200

Reexamination Certificate

active

10678131

ABSTRACT:
A method of controlling the performance of a radio link between a base transceiver station and a radio terminal for a wireless transmission system is provided. A radio network controller (RNC) monitors a directly observable L-2parameter, and determines a without explicit L2-L1signaling a threshold violation by the L-1parameter for accordingly triggering a status change of the radio link. Namely, a L-2radio resource management algorithm prompts the radio terminal and the RNC to perform a radio resource management action whenever the L-1parameter violates a L-1threshold. Such an action could be directly downgrading or upgrading the transmission rate on the radio link, or a radio link reconfiguration. The L-1parameter may be the radio block error rate r, and the L-2parameter may be the PDU retransmission rate R.

REFERENCES:
patent: 7120448 (2006-10-01), Brouwer
patent: 2004/0110521 (2004-06-01), Soldani et al.

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