Apparatus, method and computer program product for...

Details Apparatus, method and computer program product for... Apparatus, method and computer program product for...

2011-01-18

2011-01-18

Rao, Seema S (Department: 2462)

Multiplex communications

Communication over free space

Having a plurality of contiguous regions served by...

C370S436000, C370S478000

Reexamination Certificate

active

07873011

ABSTRACT:
Methods and apparatus operative in a wireless communications system divide a communications resource available for performing information transmission and retransmission operations into a plurality of communication resource units. The units are ordered in a predetermined order. A first group of communication resource units are selected from the communication resource in ascending order and assigned to a first group of communications devices to perform information transmission operations in a first time period. A second group of communication resource units are selected from the communication resource in descending order and assigned to a second group of communications devices to perform information transmission operations in a second time period. At least a portion of the first group of communication resource units is assigned to the first group of communication resource units to perform retransmission operations. In operation often the first group of communication resource units will be available to perform retransmission operations in the second time period. In such a manner a non-adaptive HARQ retransmissions can be accommodated in a 3GPP LTE OFDM based wireless communications system.

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3GPP TR 25,814 V.7.0.0, section 9.1.2.5 (Jun. 2006), “Technical Report, 3rdGeneration Partnershp Project; Technical Specification group Radio Access Network; Physical layer aspects for evolved Universal Terrestrial Radio Access (UTRA) (Release 7)”, 3 pgs.

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