Method for transmitting/receiving signal and device therefor

• US 9,277,553 B2
• Filed: 03/23/2015
• Issued: 03/01/2016
• Est. Priority Date: 03/24/2011
• Status: Active Grant

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: Yang, Suckchel, Kim, Mingyu, Ahn, Joonkui, Seo, Dongyoun
• Primary Examiner(s): HAN, CLEMENCE S
• Application Number:
  US14/665,971
• Publication Number:
  US 20150208407A1
• Time in Patent Office: 344 Days
• US Class Current: 1/1
• CPC Class Codes: H04B 7/2656 for structure of frame, burst
• CPC Class Codes: H04L 1/18 Automatic repetition systems, e.g. Van Duuren systems
• CPC Class Codes: H04L 25/03891 Spatial equalizers MIMO diversity systems H04B7/0413
• CPC Class Codes: H04L 5/001 the frequencies being arranged in component carriers
• CPC Class Codes: H04L 5/0032 Distributed allocation, i.e. involving a plurality of allocating devices, each making partial allocation
• CPC Class Codes: H04L 5/0055 Physical resource allocation for ACK/NACK for physical mapping arrangements in ARQ protocols H04L1/1861
• CPC Class Codes: H04L 5/14 Two-way operation using the same type of signal, i.e. duplex
• CPC Class Codes: H04L 5/1469 using time-sharing
• CPC Class Codes: H04L 5/22 using time-division multiplexing
• CPC Class Codes: H04W 72/04 Wireless resource allocation
• CPC Class Codes: H04W 72/0446 Resources in time domain, e.g. slots or frames
• CPC Class Codes: H04W 72/21 in the uplink direction of a wireless link, i.e. towards the network
• CPC Class Codes: H04W 72/23 in the downlink direction of a wireless link, i.e. towards a terminal

Abstract

The present invention relates to a wireless communication system. More particularly, the present invention relates to a method comprising: setting a first cell having a first TDD UL-DL configuration and a second cell having a second TDD UL-DL configuration; receiving a PHICH signal in a subframe #(n−L) of the first cell, or receiving a PDCCH signal in a subframe #(n−K) of the first cell; and transmitting a PUSCH signal in a subframe #n of the second cell, corresponding to the PHICH signal or the PDCCH signal, wherein the relationship between the subframes #(n−L), #(n−K), and #n is determined in consideration of a parameter value set in a specific TDD UL-DL configuration, which is the TDD UL-DL configuration having the least number of UL subframes from TDD UL-DL configuration(s), in which subframes set as UL in the first or second cell are all set as ULs.

Claims

1. A method for transmitting an uplink signal by a wireless device configured with a primary cell having a first Time Division Duplex Uplink-Downlink (TDD UL-DL) configuration and a secondary cell having a second TDD UL-DL configuration different from the first TDD UL-DL configuration, the method comprising:

receiving, by the wireless device, one or more data within subframe #n−

k′

(k′

∈

K′

) on the secondary cell; and

transmitting, by the wireless device, acknowledgement information about the one or more data in subframe #n according to a reference TDD UL-DL configuration different from the second TDD UL-DL configuration,

wherein K′

consists of a subset of elements of K;

{k₀, k₁, . . . , k<sub>M−

1</sub>} of the reference TDD UL-DL configuration as defined in Table 1 below such that subframe #n−

k′

in the secondary cell is only a downlink subframe or a special subframe,

wherein TDD UL-DL configurations are defined according to table 2;

2. The method of claim 1,

wherein a relationship between the first TDD UL-DL configuration, the second TDD UL-DL configuration and the reference TDD UL-DL configuration is shown in Table 3 below:

3. The method of claim 1,

wherein the reference TDD UL-DL configuration is TDD UL-DL configuration #4 when (the first TDD UL-DL configuration, the second TDD UL-DL configuration) corresponds to (#1, #3) or (#3, #1),

wherein the reference TDD UL-DL configuration is TDD UL-DL configuration #5 when (the first TDD UL-DL configuration, the second TDD UL-DL configuration) corresponds to (#2, #3), (#3, #2), (#2, #4) or (#4, #2).

4. The method of claim 1, wherein the acknowledgement information is transmitted on the primary cell via a physical uplink control channel (PUCCH).

5. The method of claim 1, wherein the acknowledgement information is transmitted on the primary cell or the secondary cell via a physical uplink shared channel (PUSCH).

6. A wireless device which can be configured with a primary cell having a first Time Division Duplex Uplink-Downlink (TDD UL-DL) configuration and a secondary cell having a second TDD UL-DL configuration different from the first TDD UL-DL configuration and configured to transmit an uplink signal, the wireless device comprising:

a receiver;

a transmitter; and

a processor operatively connected to the receiver and the transmitter, the processor configured to;

receive one or more data within subframe #n−

k′

(k′

∈

K′

) on the secondary cell; and

transmit acknowledgement information about the one or more data in subframe #n according to a reference TDD UL-DL configuration different from the second TDD UL-DL configuration,

wherein K′

consists of a subset of elements of K;

{k₀, k₁, . . . , k<sub>M−

1</sub>} of the reference TDD UL-DL configuration as defined in Table 1 below such that subframe #n−

k′

in the secondary cell is only a downlink subframe or a special subframe,

wherein TDD UL-DL configurations are defined according to table 2;

7. The wireless device of claim 6,

wherein a relationship between the first TDD UL-DL configuration, the second TDD UL-DL configuration and the reference TDD UL-DL configuration is shown in Table 3 below:

8. The wireless device of claim 6,

wherein the reference TDD UL-DL configuration is TDD UL-DL configuration #4 when (the first TDD UL-DL configuration, the second TDD UL-DL configuration) corresponds to (#1, #3) or (#3, #1),

wherein the reference TDD UL-DL configuration is TDD UL-DL configuration #5 when (the first TDD UL-DL configuration, the second TDD UL-DL configuration) corresponds to (#2, #3), (#3, #2), (#2, #4) or (#4, #2).

9. The wireless device of claim 6, wherein the acknowledgement information is transmitted on the primary cell via a physical uplink control channel (PUCCH).

10. The wireless device of claim 6, wherein the acknowledgement information is transmitted on the primary cell or the secondary cell via a physical uplink shared channel (PUSCH).