Multiplex communications – Diagnostic testing – Determination of communication parameters
Reexamination Certificate
2005-09-06
2005-09-06
Marcelo, Melvin (Department: 2662)
Multiplex communications
Diagnostic testing
Determination of communication parameters
C370S329000, C370S468000, C455S452200
Reexamination Certificate
active
06940824
ABSTRACT:
The present invention provides scheduling algorithms that guarantee minimum data transport service for even ATs with poor channel conditions. Data-requesting ATs are divided into a number (Ng1) of AT groups according to their channel conditions. Also, a recurring sequence of time slots is defined on the TDMA channel and partitioned into a number (Ng2) of slot groups, where Ng2is made larger than Ng1. Generally, slot assignment according to the present invention is a two-step process. First, in the sequence, the slot groups are allocated to the AT groups so that AT groups with better channel conditions will receive more slot groups while each AT group will receive at least one slot group. Second, in each AT group, the time slots allocated to an AT group are assigned to the individual ATs in the group. By assigning more slot groups to AT groups with better channel conditions, the algorithm will optimize the overall data throughput. By assigning at least one slot group to each AT groups, the algorithm will guarantee minimum service to ATs with poor channel conditions.
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Brinks Hofer Gilson & Lione
Marcelo Melvin
NTT DoCoMo Inc.
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