Joint coding method based on binary tree and coder
US8989293B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 1, 2011 |
| Grant date | Mar 24, 2015 |
| Priority date | — |
| Expiry date | Jan 19, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W72/21
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
The present invention provides a method and a coder for jointly coding Pre-coding Matrix Index #1 (W1) and Rank Index (RI) for channel state information feedback of a double codebook precoding frame. In the present invention, it is determined whether Rank Index RI is more than 2; if the RI is no more than 2, a first half branch of a coding binary tree is used to represent joint coding of the RI and W1 when RI=1 and RI=2; if the RI is more than 2, a second half branch of the coding binary tree is used to represent remaining separate codings and/or joint codings when the RI is more than 2; and processing results of the above coding steps are output. The present invention may be applied to an equal-length coding or an unequal-length coding. The present invention has advantages such as easy implementation, lower signaling overhead etc., and may be suitable for an LTE-A/4G cellular communication system and a future 5G cellular communication system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.