Patent · US Active

Method and apparatus for modified reference signal transmission for cell discovery

US9967809B2 · kind B2 · utility

0Cited by

1References

28Claims

0Family size

Assignee

ZTE WISTRON TELECOM AB · SE

Inventors

Thorsten Schier · Lund, SE
Patrick Svedman · Sollentuna, SE
Aijun Cao · Sollentuna, SE
Yonghong Gao · Sollentuna, SE
Jan Johansson · Sollentuna, SE
Bojidar Hadjiski · Stockholm, SE

Key dates

Filing date	Sep 11, 2014
Grant date	May 8, 2018
Priority date	—
Expiry date	Dec 11, 2034

Classification

Technology area (CPC H)Electricity
CPC primaryH04W48/12
WIPO fieldDigital communication
WIPO sectorElectrical engineering

Abstract

The proposed approach contemplates systems and methods configured to utilize a modified reference signal to facilitate efficient discovery of as many cells as possible within one channel state information reference signal (CSI-RS) sub-frame while maintaining certain detection and measurement performance. The proposed approach is configured to unambiguously discover at least the number of anticipated small cells within one cluster and to further identify all small cells within the coverage area of a base station/macro cell. In some embodiments, frequency multiplexing is utilized to allow different cells to transmit their discovery signals on different physical resource blocks (PRBs) rather than one cell using every PRB over the entire system bandwidth.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.