US 2014/0112287 A1 · METHOD AND APPARATUS FOR ALLOCATING REFERENCE SIGNAL PORT IN WIRELESS COMMUNICATION SYSTEM

Abstract

Provided are a method and apparatus for allocating a DMRS (DeModulation Reference Signal) port in a wireless communication system. A base station: respectively allocates the DMRS port to a plurality of nodes by the number of layers used in each node; maps the DMRS port allocated to each node to a resource element within a RB (Resource Block); and transmits DMRS through the DMRS port allocated to each node. The plurality of nodes have the same cell ID (identifier) and the DMRS ports allocated to neighboring nodes in the plurality of nodes do not overlap each other.

Claims15

Dependent claims

A method for allocating, by a base station, a demodulation reference signal (DMRS) port in a wireless communication system, the method comprising:

allocating DMRS ports to each of a plurality of nodes by a number of layers used by each of the plurality of nodes;
mapping the DMRS ports allocated to each of the plurality of nodes to resource elements within a resource block (RB);
and
transmitting a DMRS through the DMRS ports allocated to each of the plurality of nodes,
wherein the plurality of nodes have the same cell identifier (ID), and
wherein DMRS ports allocated to neighboring nodes among the plurality of nodes do not overlap with each other.

3 more elements

Dependencies are inferred from the claim text.

Facts

Application

14/126,388Filed 20 Jun 2012

Priority

22 Jun 2011

Published

24 Apr 2014

Term ends

Not estimatedThe source records don’t support an estimate.

Classification5 codes

H04L 5/0048
Arrangements for allocating sub-channels of the transmission path: allocation of pilot signals, i.e. of signals known to the receiver
H04L 5/0023
Three-dimensional division: time-frequency-space
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 5/0073
Allocation criteria: allocation arrangements that take into account other cell interferences

Method and apparatus for allocating reference signal port in wireless communication system

Life of this patent

Method and apparatus for allocating reference signal port in wireless communication system

Life of this patent

Abstract

Claims15