Method for optimizing discontinuous reception in random...

Details Method for optimizing discontinuous reception in random... Method for optimizing discontinuous reception in random...

2009-06-22

2011-10-04

Chou, Albert T (Department: 2471)

Multiplex communications

Communication over free space

Having a plurality of contiguous regions served by...

C370S252000, C370S337000, C455S450000

Reexamination Certificate

active

08031668

ABSTRACT:
In a method for optimizing discontinuous reception mechanism in random access or scheduling request, the user equipment behaves according to a TTI window and a contention resolution timer so that the user equipment is at active time to monitor PDCCH. In the random access, the UE is at active time while a PDCCH indicating a new transmission addressed to the C-RNTI of the UE has not been received after successful reception of a Random Access Response for the non-contention preamble. In the scheduling request, the UE is at active time while an UL grant for the UE has not been received after SR has been sent.

REFERENCES:
patent: 2009/0176502 (2009-07-01), Kuo
patent: 2009/0303896 (2009-12-01), Che et al.
patent: 2009/0316638 (2009-12-01), Yi et al.
patent: 2010/0202420 (2010-08-01), Jersenius et al.
patent: 2010/0260132 (2010-10-01), Rao
3rdGeneration Partnership Project, Technical Specification Group Radio Access Network; Evolved Universal Terrestrial Radio Access (E-UTRA) Medium Access Control (MAC) Protocol Specification, Mar. 2008, 1-30, V.8.1.0, 3GPP Organizational Partners, France.

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