De-rate matching method and apparatus in a high speed downlink packet access system
US7391727B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 28, 2005 |
| Grant date | Jun 24, 2008 |
| Priority date | — |
| Expiry date | Sep 16, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B2201/70722
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A de-rate matching method and apparatus in a High Speed Downlink Packet Access (HSDPA) system are provided. In the de-rate matching apparatus and method, a collection buffer temporarily stores a received packet, a combining buffer stores the packet received from the collection buffer according to predetermined memory address information including information indicating the positions of bits punctured during the rate matching, a controller decodes high-speed shared common control channel (HS-SCCH) information including a predetermined hybrid automatic repeat request (HARQ) parameter received from the transmitter and provides overall control to de-rate matching between the collection buffer and the combining buffer, an address generator generates the memory address information based on the decoded HARQ parameter, an address buffer stores the memory address information, and a zero inserter initializes at least one of data stored at memory addresses of the combining buffer including memory addresses for the punctured, before the de-rate matching.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.