Method and apparatus for multi-antenna signal transmission in RF long-distance wireless BS
US7817603B2 · kind B2 · utility
Assignees
Inventor
Key dates
| Filing date | Apr 23, 2004 |
| Grant date | Oct 19, 2010 |
| Priority date | — |
| Expiry date | Nov 23, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04J2203/0035
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
The invention relates to a method for transmitting a plurality of antenna signals in a wireless Base Transceiver Station (BTS) using Remote Radio Head (RRH) technology and the corresponding system. The method includes the steps of: transmitting signals over the transmit channel using Synchronous Digital Hierarchy (SDH)/Optical Transmission Network (OTN), multiplexing the plurality of antenna signals adopting the manners of time division multiplex or GFP frame-level multiplex; forming the multiplexed antenna signal stream and in-band control signaling stream into Generic Framing Procedure (GFP) frame; or forming the plurality of antenna signals and the plurality of respective control signals on the in-band control signaling channel into a plurality of respective GFP frames in parallel; and further mapping the GFP frames to STM-N/OTM-n frames, therefore multiplexing the plurality of antenna signals and the in-band control signaling stream to realize the SDH/OTN-based transmission. According to the invention, in the circumstance of using a plurality of antennas for transmitting signals, the strict time and phase relations between various antenna signals can be ensured, and also system…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.