Method of switching a periodic/aperiodic transmission of a channel estimation reference signal, and apparatus and method for a transmitting/receiving channel estimation reference signal using the same
US8953553B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 28, 2011 |
| Grant date | Feb 10, 2015 |
| Priority date | — |
| Expiry date | Sep 25, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L5/0057
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method for switching between periodic transmission and aperiodic transmission of a channel estimation reference signal for scheduling resources in an Orthogonal Frequency Division Multiple Access (OFDMA) system and an apparatus to transmit/receive the reference signal using the same. To schedule periodic and aperiodic transmission of the channel estimation reference signal, a predetermined type of transmission indicator is used, the transmission indicator including one or more bits of a periodic/aperiodic identification indicator. According to the present embodiment, when periodic and aperiodic transmission of the channel estimation reference signal is mixedly performed, interference between user equipment or between cells can be minimized, and a transmission efficiency of the reference signal can be enhanced.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.