Data structure caching for PDU re-generation and transmission in a 3G wireless network
US7738369B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 17, 2007 |
| Grant date | Jun 15, 2010 |
| Priority date | — |
| Expiry date | Nov 11, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W28/14
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
In one embodiment, a transmitter (a) caches one or more MAC-d PDUs received from a network layer, (b) selects a subset of the MAC-d PDUs for combination into a MAC-e PDU, (c) generates the MAC-e PDU from the subset of selected MAC-d PDUs, (d) caches a data structure to allow re-generation of the MAC-e PDU, wherein the re-generation does not rely on any cached copy of the MAC-e PDU, (e) transmits the MAC-e PDU for receipt by a receiver; and (f) determines whether an ACK was received, wherein if an ACK was not received, then the MAC-e PDU is re-generated using the cached data structure and the subset of selected MAC-d PDUs, and steps (e) and (f) are repeated, and if an ACK was received, then the memories used to cache the data structure and the first subset of MAC-d PDUs are freed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.