Method of decoding uplink status flags for RT-EGPRS users
AssigneeLucent Technologies Inc.
InventorsCristian Demetrescu, Konstantinos Samaras, Louis Gwyn Samuel, Magnus Sandell, Jian Jun Wu, Ran-Hong Yan
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Abstract
In the GPRS, a method of decoding uplink status having reduced interleaving depth in a RLC/MAC block is proposed; for RT-EGPRS users, all of the uplink flag bits are provided in the first burst of the four bursts; and for EGPRS users, nine bits of the uplink status flags are provided in the first burst of the RLC/MAC block and the remaining bits in the next three bursts. On receiving the first nine bits, a mobile performs an autocorrelation to identify the USF whether it belongs to the EGPRS or to the RT-EGPRS group.
Claims12
In the general packet radio service telecommunications system, a method of decoding uplink status flags having reduced interleaving depth in a radio link control/medium access control block comprising the steps of:
- selecting a first plurality of uplink status flags and providing all of the flag bits in the first block of said group of bursts;
- and
- selecting a second plurality of uplink status flags and providing a predetermined number of bits of the uplink status flags in the first burst of said group of bursts and the remaining bits in the other bursts of the group.
A General Packet Radio Service comprising:
- a plurality of base transceiver stations 14;
- a plurality of radio network controllers 16;
- and
- a core network 18;
- wherein each base transceiver station 14 is arranged to decode uplink status flags for a first group of voice users by providing all of the flag bits in the first burst of the radio link control medium access control block, and for a second group of voice users by providing a predetermined number of bits in the first burst of the radio link control medium access control block and the remaining bits in subsequent bursts.
Dependencies are inferred from the claim text.