Back to results
US 10,567,119 B2Granted
Method and system of retransmission
AssigneeTelefonaktiebolaget LM Ericsson (publ)
InventorsJohan Torsner, Janne Peisa
Life of this patent
Estimating the term…
Abstract
The present invention relates to retransmissions in a communications system. A method and system of reducing uplink retransmission delay of a radio communications system by introducing an uplink MAC ARQ layer of Node B is disclosed. Further, a MAC PDU data indicator for soft combining control in Node B and RLC PDU reordering is introduced.
Claims11
A method performed by a radio network controller of a radio communications system, the method comprising:
- receiving first protocol data units from one or more base stations, the first protocol data units having one or more second protocol data units assembled therein;
- buffering received first protocol data units;
- identifying two first protocol data units that are the same, or were identically assembled, the two first protocol data units transmitted from a user equipment via two base stations;
- keeping a first of the two identified first protocol data units that are the same, or were identically assembled and discarding a second of the two identified first protocol data units that are the same, or were identically assembled;
- segmenting the first received first protocol data unit into second protocol data units;
- reassembling second protocol data units into service data units;
- and
- transferring service data units.
5 more elements
A radio network controller of a radio communications system comprising:
- receive means, for receiving first protocol data units from one or more base stations, the first protocol data units having one or more second protocol data units assembled therein;
- buffering means, for buffering received first protocol data units;
- identification means, for identifying two first protocol data units that are the same, or were identically assembled, the two first protocol data units transmitted from a user equipment via two base stations, wherein a first of the two identified first protocol data units that are the same, or were identically assembled is kept and a second of the two identified first protocol data units that are the same, or were identically assembled is discarded;
- segmentation means, for segmenting the first received first protocol data unit into second protocol data units;
- reassemble means, for reassembling second protocol data units into service data units;
- and
- transfer means, for transferring the service data units.
4 more elements
Dependencies are inferred from the claim text.