Multiplex communications – Communication techniques for information carried in plural... – Adaptive
Reexamination Certificate
2007-08-07
2007-08-07
Taylor, Barry (Department: 2617)
Multiplex communications
Communication techniques for information carried in plural...
Adaptive
C370S235000
Reexamination Certificate
active
10286588
ABSTRACT:
This invention provides solutions to resolve the potential security unsynchronizing problem when upper layers issue a suspend command to the RLC entity while a TFC selection exchange process has been initialised. Three solutions of this invention, can be used either in UM or in AM environment, in which the RLC entity defines a safe range factor and add it to the upper-layers-passed parameter N of the prior art to calculate a new suspend sequence number for the suspended RLC entity. During the suspension, the RLC entity will continuously pass the scheduled RLC PDUs to lower layers as long as the SN of scheduled RLC PDU is less than the new suspend sequence number. One solution of this invention is more suitable to be implemented in UM than in AM. In this solution, upper layers decide and pass to the RLC entity a suitable parameter N having a more tolerant safety range than the prior art does.
REFERENCES:
patent: 2004/0009786 (2004-01-01), Terry
3rdGeneration Partnership Project, Technical specification Group Radio Access Betwork, RLC protocal Specification (relase 1999), Sep. 2001.
Birch & Stewart Kolasch & Birch, LLP
Innovative Sonic Limited
Taylor Barry
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