Method and device for mapping spatial stream to space time stream, and method and device for transmitting data
US9247545B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 28, 2011 |
| Grant date | Jan 26, 2016 |
| Priority date | — |
| Expiry date | Dec 15, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L5/0023
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method and device for mapping a spatial stream to a space-time stream, and a method and device for transmitting data are provided in the disclosure. The mapping method includes: determining, according to a space-time encoding indication bit in a network, whether to adopt space-time encoding (S102); if it is determined to adopt space-time encoding, mapping M OFDM symbols carried by the nth spatial stream to OFDM symbols carried by the (2n−1)th and 2nth space-time stream respectively, n=1, 2, . . . , N, N is the total number of spatial streams in the network, M is the number of OFDM symbols carried by each spatial stream, and M is an even greater than zero (S104). Applying the disclosure, the problem that there is no specific method for mapping spatial stream to space-time stream using space-time encoding in a typical 802.11ac ultrahigh throughput WLAN system can be solved.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.