US 10,314,022 B2 · Method and apparatus for transmitting control information in wireless communication systems

Abstract

A method for transmitting control information by a base station in a wireless communication system is provided. The method includes determining a precoder to be applied to a resource and a Demodulation Reference Signal (DMRS) port, the resource being used to transmit the control information, and the DMRS port corresponding to the resource and being used to transmit a DMRS, precoding the resource and the DMRS port by using the determined precoder, and transmitting the control information and the DMRS to a user equipment.

Claims18

Dependent claims

A method for receiving control information by a user equipment (UE) in a wireless communication system, the method comprising:

receiving, by the UE, information for configuring a control channel region for receiving the control information from a base station;
and
receiving, by the UE, the control information based on a resource element group (REG) and at least one demodulation reference signal (DMRS) from the base station,
wherein the REG includes a plurality of resources elements (REs) used for the control information and the REG excludes REs used for the at least one DMRS,
wherein the at least one DMRS is transmitted by using a first antenna port and a second antenna port of the base station, and
wherein each RE in the REG is associated with one of the first antenna port or the second antenna port in an alternating manner.

3 more elements

Dependencies are inferred from the claim text.

Facts

Application

14/625,150Filed 18 Feb 2015 · continuation

Priority

16 Nov 2011

Published

US 2015/0163783 A111 Jun 2015

Granted

4 Jun 2019

Term ends

Not estimatedThe source records don’t support an estimate.

Classification11 codes

H04W 72/23
Control channels or signalling for resource management: in the downlink direction of a wireless link, i.e. towards a terminal
H04B 7/0456
MIMO systems: selection of precoding matrices or codebooks, e.g. using matrices antenna weighting
H04L 1/00
Arrangements for detecting or preventing errors in the information received
H04L 1/02
Arrangements for detecting or preventing errors in the information received: by diversity reception

Family

Application61/560,454Us provisional application · filed 16 Nov 2011

Application61/587,351Us provisional application · filed 17 Jan 2012

Application13/679,086Parent of this continuation · filed 16 Nov 2012

US 2015/0163783 A1Pre-grant publication · published 11 Jun 2015

US 9,247,537 B2Parent of this continuation

US 2013/0121276 A1Published application

US 10,314,022 B2This patent

From the US filing history. Foreign family members aren’t listed.

Method and apparatus for transmitting control information in wireless communication systems

Life of this patent

Method and apparatus for transmitting control information in wireless communication systems

Life of this patent

Abstract

Claims18