Method of transmitting uplink control signals in wireless communication system

• US 8,891,560 B2
• Filed: 03/08/2013
• Issued: 11/18/2014
• Est. Priority Date: 08/08/2007
• Status: Active Grant

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: Kwak, Jin Sam, Park, Hong Won, Han, Seung Hee, Noh, Min Seok, Kwon, Yeong Hyeon, Lee, Hyun Woo, Kim, Dong Cheol, Chung, Jae Hoon
• Primary Examiner(s): MARCELO, MELVIN C
• Application Number:
  US13/791,398
• Publication Number:
  US 20130188587A1
• Time in Patent Office: 620 Days
• Field of Search: 370/522
• US Class Current: 370/522
• CPC Class Codes: H04L 1/1854 Scheduling and prioritising arrangements
• CPC Class Codes: H04L 5/0055 Physical resource allocation for ACK/NACK for physical mapping arrangements in ARQ protocols H04L1/1861
• CPC Class Codes: H04W 72/21 in the uplink direction of a wireless link, i.e. towards the network
• CPC Class Codes: H04W 72/535 based on resource usage policies

Abstract

A method and device for transmitting uplink control signals in a wireless communication system, the method including: reserving a preassigned scheduling request (SR) physical uplink control channel (PUCCH) resource used for transmission of a SR; determining a frequency domain sequence and an orthogonal sequence based on the preassigned SR PUCCH resource; spreading an ACK/NACK for Hybrid Automatic Repeat Request (HARQ) with the frequency domain sequence and the orthogonal sequence to generate a mapped sequence; and transmitting the mapped sequence.

Claims

1. A method for transmitting uplink control signals in a wireless communication system using a subframe comprising two slots, each slot including a plurality of symbols, the wireless communication system configured to transmit a scheduling request (SR) via a physical uplink control channel resource which is assigned for a SR transmission and to transmit an ACK/NACK via a physical uplink control channel resource which is assigned for an ACK/NACK transmission, the method comprising:

generating an ACK/NACK modulation symbol by modulating the ACK/NACK; and

transmitting the ACK/NACK modulation symbol in the subframe via the physical uplink control channel resource which is assigned for the SR transmission if it is determined that the ACK/NACK and the SR are to be transmitted in the subframe.

2. The method of claim 1, further comprising:

transmitting the ACK/NACK modulation symbol in the subframe via the physical uplink control channel resource which is assigned for the ACK/NACK transmission if it is determined that the ACK/NACK is to be transmitted in the subframe without an SR.

3. The method of claim 1, wherein the step of transmitting the ACK/NACK modulation symbol in the subframe via the physical uplink control channel resource which is assigned for the SR transmission comprises:

determining an orthogonal sequence based on the physical uplink control channel resource which is assigned for the SR transmission;

spreading the ACK/NACK modulation symbol with the orthogonal sequence to generate a mapped sequence; and

transmitting the mapped sequence in the subframe.

4. A mobile communication apparatus configured to transmit uplink control signals in a wireless communication system using a subframe comprising two slots, each slot including a plurality of symbols, the wireless communication system configured to transmit a scheduling request (SR) via a physical uplink control channel resource which is assigned for a SR transmission and to transmit an ACK/NACK via a physical uplink control channel resource, which is assigned for an ACK/NACK transmission, the mobile communication apparatus comprising:

a memory; and

a processor operatively coupled with the memory and configured to;

generate an ACK/NACK modulation symbol by modulating the ACK/NACK; and

transmit the ACK/NACK modulation symbol in the subframe via the physical uplink control channel resource which is assigned for the SR transmission if it is determined that the ACK/NACK and the SR are to be transmitted in the subframe.

5. The mobile communication apparatus of claim 4, wherein the processor is configured to transmit the ACK/NACK modulation symbol in the subframe via the physical uplink control channel resource which is assigned for the ACK/NACK transmission if it is determined that the ACK/NACK is to be transmitted in the subframe without an SR.

6. The mobile communication apparatus of claim 4, wherein the processor is configured to transmit the ACK/NACK modulation symbol in the subframe via the physical uplink control channel resource which is assigned for the SR transmission by:

determining an orthogonal sequence based on the physical uplink control channel resource assigned for the SR transmission;

spreading the ACK/NACK modulation symbol with the orthogonal sequence to generate a mapped sequence; and

transmitting the mapped sequence in the subframe.