US 9,854,575 B2 · Method for transmitting and receiving control information and apparatus for the same

Abstract

The present invention relates to a wireless communication and, more specifically, to a method for transmitting an HARQ) response by a UE in a wireless communication system, and an apparatus for the same. The method includes receiving an E-PDCCH signal on at least one of a plurality of enhanced physical downlink control channel (E-PDCCH) sets, each E-PDCCH set including a plurality of resources units indexed per E-PDCCH set; and transmitting the HARQ response using a physical uplink control channel (PUCCH) resource determined using the index of the first resource unit among one or more resource units carrying the E-PDCCH signal, wherein the index of the first resource unit is determined on the basis of the E-PDCCH set having the lowest index among the plurality of E-PDCCH sets when specific conditions are satisfied.

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Claims12

Dependent claims

A method for transmitting a hybrid automatic repeat request (HARQ) response by a user equipment (UE) in a wireless communication system, the method comprising:

detecting an enhanced physical downlink control channel (E-PDCCH);
determining a resource unit index of the detected E-PDCCH based on a position of the detected E-PDCCH in an E-PDCCH set, wherein the E-PDCCH set includes a plurality of resource units indexed per E-PDCCH;
and
transmitting the HARQ response using a physical uplink control channel (PUCCH) resource determined using the resource unit index of the detected E-PDCCH,
wherein the UE assumes that the detected E-PDCCH is received through one of the different E-PDCCH sets having a lowest E-PDCCH set index, when the detected E-PDCCH corresponds to a plurality of E-PDCCH candidates of different E-PDCCH sets, and
wherein the UE determines that the detected E-PDCCH corresponds to the plurality of E-PDCCH candidates of the different E-PDCCH sets, if at least i), ii) and iii) are satisfied:
i) the different E-PDCCH sets are scrambled with a same sequence,
ii) the plurality of E-PDCCH candidates of the different E-PDCCH sets have a same downlink control information (DCI) payload size, and
iii) the plurality of E-PDCCH candidates of the different E-PDCCH sets are exactly overlapped on a same set of resource units.

6 more elements

Dependencies are inferred from the claim text.

Description14,814 words

Summary801 words

#The present invention relates to a wireless communication system and, more particularly, to a method for transmitting and receiving control information and an apparatus for the same.

#Wireless communication systems have been widely deployed to provide various types of communication services including voice and data services. In general, a wireless communication system is a multiple access system that supports communication among multiple users by sharing available system resources (e.g. bandwidth, transmit power, etc.) among the multiple users. The multiple access system may adopt a multiple access scheme such as code division multiple access (CDMA), frequency division multiple access (FDMA), time division multiple access (TDMA), orthogonal frequency division multiple access (OFDMA), or single carrier frequency division multiple access (SC-FDMA).

#An object of the present invention devised to solve the problem lies in a method for efficiently transmitting/receiving control information in a wireless communication system and an apparatus for the same. Another object of the present invention is to provide a method for efficiently transmitting/receiving a control channel signal and an apparatus for the same.

Brief description of the drawings20 figures

#The accompanying drawings, which are included to provide a further understanding of the invention, illustrate embodiments of the invention and together with the description serve to explain the principle of the invention. In the drawings:

#FIG. 1 illustrates physical channels used in LTE(-A) and a signal transmission method using the same;

#FIG. 2 illustrates a radio frame structure for use in LTE(-A);

Detailed description13,720 words

#Embodiments of the present invention are applicable to a variety of wireless access technologies such as code division multiple access (CDMA), frequency division multiple access (FDMA), time division multiple access (TDMA), orthogonal frequency division multiple access (OFDMA), and single carrier frequency division multiple access (SC-FDMA). CDMA can be implemented as a radio technology such as Universal Terrestrial Radio Access (UTRA) or CDMA2000. TDMA can be implemented as a radio technology such as Global System for Mobile communications (GSM)/General Packet Radio Service (GPRS)/Enhanced Data Rates for GSM Evolution (EDGE). OFDMA can be implemented as a radio technology such as Institute of Electrical and Electronics Engineers (IEEE) 802.11 (Wireless Fidelity (Wi-Fi)), IEEE 802.16 (Worldwide interoperability for Microwave Access (WiMAX)), IEEE 802.20, and Evolved UTRA (E-UTRA). UTRA is a part of Universal Mobile Telecommunications System (UMTS). 3rd Generation Partnership Project (3GPP) Long Term Evolution (LTE) is a part of Evolved UMTS (E-UMTS) using E-UTRA, employing OFDMA for downlink and SC-FDMA for uplink. LTE-Advanced (LTE-A) evolves from 3GPP LTE.

#While the following description is given, centering on 3GPP LTE/LTE-A for clarity, this is purely exemplary and thus should not be construed as limiting the present invention. It should be noted that specific terms disclosed in the present invention are proposed for convenience of description and better understanding of the present invention, and the use of these specific terms may be changed to other formats within the technical scope or spirit of the present invention.

#FIG. 1 illustrates physical channels used in LTE(-A) and a signal transmission method using the same.

Facts

Application

15/052,429Filed 24 Feb 2016 · continuation

Priority

31 Oct 2012

Published

US 2016/0174204 A116 Jun 2016

Granted

26 Dec 2017

Term ends

15 Jul 2034

Estimated · how

20 years from earliest known nonprovisional domestic filing plus recorded patent term adjustment, including 70 days of adjustment. Maintenance-fee lapses, terminal disclaimers and statutory extensions have not been checked. The continuity chain may be incomplete; this is not an enforceability determination.

Classification13 codes

H04W 72/23
Control channels or signalling for resource management: in the downlink direction of a wireless link, i.e. towards a terminal
H04L 1/18
In which the return channel carries supervisory signals, e.g. repetition request signals: automatic repetition systems, e.g. Van Duuren systems
H04L 1/1812
Automatic repetition systems, e.g. Van Duuren systems: hybrid protocols; Hybrid automatic repeat request [HARQ]
H04L 1/1854
Arrangements specially adapted for the receiver end: scheduling and prioritising arrangements

Family

Application61/720,396Us provisional application · filed 31 Oct 2012

Application61/756,466Us provisional application · filed 25 Jan 2013

Application61/763,971Us provisional application · filed 13 Feb 2013

Application61/814,830Us provisional application · filed 23 Apr 2013

PCT/KR2013/009774Parent of this continuation · filed 31 Oct 2013

Application14/642,164Parent of this continuation · filed 9 Mar 2015

US 9,014,131 B2Parent of this continuation · filed 21 Apr 2015

Application14/826,584Parent of this continuation · filed 14 Aug 2015

US 9,167,577 B2Parent of this continuation · filed 20 Oct 2015

US 2016/0174204 A1Pre-grant publication · published 16 Jun 2016

US 9,300,441 B2Parent of this continuation

Application14/826,584Parent of this continuation

Application14/356,462Parent of this continuation

Application14/642,164Parent of this continuation

US 2014/0307695 A1Published application

US 2015/0181581 A1Published application

US 2015/0358125 A1Published application

US 9,854,575 B2This patent

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

Timeline

31 Oct 2012Priority claimedParent application 61/720,396
24 Feb 2016Application filedUS 15/052,429
25 Feb 2016Assigned to LG Electronics Inc.assignment of assignor's interest
16 Jun 2016PublishedUS 2016/0174204 A1
26 Dec 2017GrantedUS 9,854,575 B2
12 Oct 2026TodayWithin its term
15 Jul 2034Term endsEstimated, includes 70 days of adjustment

Method for transmitting and receiving control information and apparatus for the same

Life of this patent

Method for transmitting and receiving control information and apparatus for the same

Life of this patent

Life of this patent

Abstract

Drawings

Drawings

Claims12

Description14,814 words

Drawings

Classification13 codes

Life of this patent

Description14,814 words