US 2014/0211701 A1 · COMMON REFERENCE SIGNAL PHASE DISCONTINUITY AND SEQUENCE INITIALIZATION

Abstract

Methods, systems, and devices are described for supporting common reference signaling in wireless communications systems. Some configurations introduce a phase discontinuity between common reference signal (CRS) transmissions on different subframes. This may address issues that may arise when a reduced CRS periodicity is utilized. Indicators may also be transmitted from base stations to user equipment (UEs) to indicate whether phase continuity may be assumed or not. Some configurations may support CRS sequence initialization. These tools and techniques may utilize an extended CRS sequence periodicity, which may increase the number of CRS sequences transmitted by a cell.

Claims30

Dependent claims

A method for receiving common reference signals in a wireless communications system, the method comprising:

determining that a phase continuity may not be assumed between a first common reference signal (CRS) transmission and a second CRS transmission;
and
receiving the first CRS transmission and the second CRS transmission without maintaining the phase continuity.

Dependencies are inferred from the claim text.

Facts

Application

14/162,484Filed 23 Jan 2014

Priority

25 Jan 2013

Published

31 Jul 2014

Term ends

Not estimatedThe source records don’t support an estimate.

Classification6 codes

H04L 5/005
Allocation of pilot signals, i.e. of signals known to the receiver: of common pilots, i.e. pilots destined for multiple users or terminals
H04L 5/0053
Arrangements for allocating sub-channels of the transmission path: allocation of signalling, i.e. of overhead other than pilot signals
H04W 56/0045
Compensating for timing error of reception due to propagation delay: compensating for timing error by altering transmission time
H04W 72/20
Local resource management: control channels or signalling for resource management

Common reference signal phase discontinuity and sequence initialization

Life of this patent

Common reference signal phase discontinuity and sequence initialization

Life of this patent

Abstract

Claims30