Apparatus and method for transmission of sounding reference signal in uplink wireless communication systems with multiple antennas and sounding reference signal hopping
US8976836B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 19, 2012 |
| Grant date | Mar 10, 2015 |
| Priority date | — |
| Expiry date | Dec 19, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04J13/0074
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A sounding reference signal transmission method which is efficient in an uplink wireless telecommunications system using a multiple antenna technique and sounding reference signal hopping. A terminal using the multiple antenna technique is equipped with a plurality of antennas, and a base station receives the sounding reference signal transmitted from these antennas and estimates the uplink channel state of each antenna. Moreover, the sounding reference signal performs frequency hopping so that the base station determines the channel condition for the entire bandwidth to which data is transmitted in the uplink system. The sounding reference signal is transmitted through an antenna pattern in which the sounding reference signal can be transmitted through the entire data transmission bandwidth of the uplink system for each antenna of the terminal without additional overhead in this environment.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.