US 12,543,180 B2 · Method for transmitting control information in wireless communication systems

Abstract

When a plurality of terminals share the same resources in a wireless communication system, and when control information such as acknowledgement/negative acknowledgement (ACK/NAK) information or scheduling information is transmitted, a method of efficiently performing code division multiplexing (CDM) is required to distinguish the plurality of terminals. In particular, it is necessary to develop a method by which a code sequence of CDM can be selected and used according to each cell condition. Provided is a method of forming a signal in a wireless communication system in which a plurality of terminals commonly share frequency and time resources. The method includes the operations of receiving condition information in a cell; selecting one of a plurality of time domain orthogonal sequences having different lengths, according to the condition information; and allocating the selected time domain orthogonal sequence to a control signal symbol block.

Claims18

Dependent claims

A communication method comprising:

transmitting, at a base station, first information to a first terminal, wherein the first information indicates a cyclically shifted sequence, a first sequence and a first set of uplink radio resources;
receiving, at the base station, a first signal through the first set of uplink radio resources;
and
obtaining, at the base station, first control information from the first signal using the cyclically shifted sequence and the first sequence,
wherein the first sequence is one of a first set of sequences which are orthogonal to each other, and
wherein the first set of sequences consists of three (3) sequences, the three sequences comprising at least two sequences of (1, 1, 1, 1) and (1, −1, 1, −1).

3 more elements

A communication apparatus, comprising:

a circuitry which is configured to:
cause the communication apparatus to transmit first information to a first terminal, wherein the first information indicates a cyclically shifted sequence, a first sequence and a first set of uplink radio resources;
cause the communication apparatus to receive a first signal through the first set of uplink radio resources;
and
cause the communication apparatus to obtain first control information from the first signal using the cyclically shifted sequence and the first sequence,
wherein the first sequence is one of a first set of sequences which are orthogonal to each other, and
wherein the first set of sequences consists of three (3) sequences, the three sequences comprising at least two sequences of (1, 1, 1, 1) and (1, −1, 1, −1).

4 more elements

A communication device for a communication apparatus, the communication device comprising:

a circuitry which is configured to:
cause the communication apparatus to transmit first information to a first terminal, wherein the first information indicates a cyclically shifted sequence, a first sequence and a first set of uplink radio resources;
cause the communication apparatus to receive a first signal through the first set of uplink radio resources;
and
cause the communication apparatus to obtain first control information from the first signal using the cyclically shifted sequence and the first sequence,
wherein the first sequence is one of a first set of sequences which are orthogonal to each other, and
wherein the first set of sequences consists of three (3) sequences, the three sequences comprising at least two sequences of (1, 1, 1, 1) and (1, −1, 1, −1).

4 more elements

Dependencies are inferred from the claim text.

Facts

Application

18/377,833Filed 9 Oct 2023 · continuation

Priority

KR 10-2007-006085221 Jun 2007

Published

US 2024/0040569 A11 Feb 2024

Granted

3 Feb 2026

Term ends

Not estimatedThe source records don’t support an estimate.

Classification16 codes

H04W 72/20
Local resource management: control channels or signalling for resource management
H04J 13/0048
Orthogonal: walsh
H04J 13/18
Code allocation: allocation of orthogonal codes
H04L 1/003
Formatting: adaptive formatting arrangements particular to signalling, e.g. variable amount of bits

Family

PCT/KR2008/003573Parent of this continuation · filed 23 Jun 2008

Application13/755,497Parent of this continuation · filed 31 Jan 2013

US 8,391,232 B2Parent of this continuation · filed 5 Mar 2013

US 9,602,233 B2Parent of this continuation · filed 12 Nov 2013

Application15/452,541Parent of this continuation · filed 7 Mar 2017

Application16/253,260Parent of this continuation · filed 22 Jan 2019

US 10,225,824 B2Parent of this continuation · filed 5 Mar 2019

Application17/169,409Parent of this continuation · filed 6 Feb 2021

US 10,917,877 B2Parent of this continuation · filed 9 Feb 2021

US 2024/0040569 A1Pre-grant publication · published 1 Feb 2024

US 11,785,600 B2Parent of this continuation

Application12/664,925Parent of this continuation

US 2010/0182976 A1Published application

US 2013/0163557 A1Published application

US 2017/0181152 A1Published application

US 2019/0159190 A1Published application

US 2021/0160847 A1Published application

US 12,543,180 B2This patent

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

Method for transmitting control information in wireless communication systems

Life of this patent

Method for transmitting control information in wireless communication systems

Life of this patent

Abstract

Claims18