MAC-d multiplexing in UTRAN HSDPA wireless networks
US8467421B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 14, 2007 |
| Grant date | Jun 18, 2013 |
| Priority date | — |
| Expiry date | Apr 19, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L1/1819
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
UTRAN MAC-d multiplexing of data from multiple logical channels to a single MAC-d flow is supported while reducing overhead and achieving octet alignment in MAC-d PDU length. In one embodiment, the C/T field of a multiplexed MAC-d PDU is eliminated, and the logical channels multiplexed into the MAC-d flow are mapped to a MAC-hs PQ in at least the NodeB (and preferably in the UE as well). In other embodiments, the C/T field is retained, and an octet-aligned length indicator is transmitted from the RNC to the UE. In one embodiment, the length indicator is octet-aligned by padding the MAC-d PDUs. In another embodiment, transmitters and receivers in the path from RNC to UE are configured with an offset to add to the length indicator to achieve octet alignment. The padding or offset is (8−n) bits, where n=the number of bits in C/T field.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.