METHOD AND DEVICE FOR TRANSMITTING SOUNDING REFERENCE SIGNAL AND EXTENDED UPLINK CONTROL INFORMATION IN WIRELESS COMMUNICATION SYSTEM

• US 20120320859A1
• Filed: 07/26/2011
• Published: 12/20/2012
• Est. Priority Date: 07/26/2010
• Status: Active Grant

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: Ahn, Joonkui, Yang, Suckchel, Kim, Mingyu, Seo, Dongyoun
• Granted Patent: US 8,861,467 B2
• Time in Patent Office: Days
• US Class Current: 370/329
• CPC Class Codes: H04L 1/1607 Details of the supervisory signal
• CPC Class Codes: H04L 1/1861 Physical mapping arrangements for ACK signaling see also H04L5/0053
• CPC Class Codes: H04L 5/0048 Allocation of pilot signals, i.e. of signals known to the receiver
• CPC Class Codes: H04L 5/0053 Allocation of signaling, i.e. of overhead other than pilot signals

Abstract

The present invention relates to a wireless communication system, and more particularly, discloses a method and a device for transmitting a sounding reference signal and extended uplink control information in a wireless communication system. A method for a terminal transmitting the uplink control information through a physical uplink control channel in the wireless communication system, according to one embodiment of the present invention, comprises the following steps: creating a block by multiplying a modulation symbol, which shows the uplink control information, to a circular shift sequence, and creating a N_SF blocks for each of the two slots of an uplink subframe; block-wise spreading the N_SF blocks using an orthogonal code; and mapping a N_RS reference signals and the block-wise spread N_SF blocks to each of the two lots of the uplink subframe, and transmitting same to a base station, wherein the N_SF blocks transmitted from the second slot of the uplink subframe can have an equal value when the transmission of the sounding reference signal is set and when the transmission of the sounding reference signal is not set in the uplink subframe.

Claims

1. A method of transmitting an uplink (UL) control information, which is transmitted via a physical uplink control channel (PUCCH) by a user equipment in a wireless communication system, comprising the steps of:

generating N_SF blocks for each of 2 slots of a UL subframe, by generating a block by multiplying a modulated symbol indicating the UL control information by a cyclic-shifted sequence;

block-wise spreading the N_SF blocks using orthogonal code; and

mapping N_RS reference signals (RSs) and the N_SF block-wide spread blocks to the 2 slots of the UL subframe, respectively, and transmitting the N_RS RSs and the N_SF block-wide spread blocks to a base station

wherein the number N_SF of the blocks transmitted in the 2^nd slot of the UL subframe has a same value for a case of configuring a transmission of sounding reference signal (SRS) in the UL subframe and a case of not configuring the transmission of the SRS.

2. The method of claim 1, wherein the UL control information comprises hybrid automatic repeat request (HARQ) ACK/NACK information transmitted using PUCCH format 1, PUCCH format 1a or PUCCH format 1b, and

wherein the number N_SF of the blocks transmitted in the 2^nd slot of the UL subframe is set to 4 for each of the UL subframe of a normal cyclic prefix (CP) and the UL subframe of an extended cyclic prefix (CP).

3. The method of claim 1, wherein the number N_RS of the reference signals transmitted in the 2^nd slot of the UL subframe in the case of configuring the transmission of the SRS in the UL subframe is not equal to the number N_RS of the reference signals transmitted in the 2^nd slot of the UL subframe in the case of not configuring the transmission of the SRS.

4. The method of claim 1, wherein the UL control information comprises HARQ ACK/NACK information transmitted using PUCCH format 1, PUCCH format 1a or PUCCH format 1b,

wherein the number N_RS of the reference signals transmitted in the 2^nd slot of the UL subframe is 2 in the case of configuring the transmission of the SRS in the UL subframe of a normal cyclic prefix (CP) and is 3 in the case of not configuring the transmission of the SRS, or

wherein the number N_RS of the reference signals transmitted in the 2^nd slot of the UL subframe is 1 in the case of configuring the transmission of the SRS in the UL subframe of an extended cyclic prefix (CP) and is 2 in the case of not configuring the transmission of the SRS.

5. The method of claim 1, wherein the sequence is cyclic-shifted in accordance with a different cyclic shift value for each of a plurality of SC-FDMA (single carrier frequency division multiple access) symbols of each of the 2 slots of the UL subframe for transmitting the UL control information.

6. The method of claim 1, wherein a plurality of PUCCH transmission resources are allocated to the user equipment and wherein at least one of a resource block (RB), an orthogonal code (OC) and a cyclic shift (CS) is differently allocated to each of a plurality of the PUCCH transmission resources.

7. A method of receiving an uplink (UL) control information, which is received via a physical uplink control channel (PUCCH) by a base station in a wireless communication system, comprising the step of:

receiving N_RS reference signals (RSs) and N_SF block-wide spread blocks, which are mapped to 2 slots of a UL subframe, respectively, from a user equipment,

wherein the N_SF block-wide spread blocks are generated by the user equipment by generating a block by multiplying a modulated symbol indicating the UL control information by a cyclic-shifted sequence, and generating N_SF blocks for each of the 2 slots of the UL subframe, and then block-wise spreading the N_SF blocks using orthogonal code and

wherein the number N_SF of the blocks transmitted in the 2^nd slot of the UL subframe has a same value for a case of configuring a transmission of sounding reference signal (SRS) in the UL subframe and a case of not configuring the transmission of the SRS.

8. The method of claim 7, wherein the UL control information comprises hybrid automatic repeat request (HARQ) ACK/NACK information transmitted using PUCCH format 1, PUCCH format 1a or PUCCH format 1b, and

wherein the number N_SF of the blocks transmitted in the 2^nd slot of the UL subframe is set to 4 for each of the UL subframe of a normal cyclic prefix (CP) and the UL subframe of an extended cyclic prefix (CP).

9. The method of claim 7, wherein the number N_RS of the reference signals transmitted in the 2^nd slot of the UL subframe in the case of configuring the transmission of the SRS in the UL subframe is not equal to the number N_RS of the reference signals transmitted in the 2^nd slot of the UL subframe in the case of not configuring the transmission of the SRS.

10. The method of claim 7, wherein the UL control information comprises HARQ ACK/NACK information transmitted using PUCCH format 1, PUCCH format 1a or PUCCH format 1b,

wherein the number N_RS of the reference signals transmitted in the 2^nd slot of the UL subframe is 2 in the case of configuring the transmission of the SRS in the UL subframe of a normal cyclic prefix (CP) and is 3 in the case of not configuring the transmission of the SRS, or

wherein the number N_RS of the reference signals transmitted in the 2^nd slot of the UL subframe is 1 in the case of configuring the transmission of the SRS in the UL subframe of an extended cyclic prefix (CP) and is 2 in the case of not configuring the transmission of the SRS.

11. The method of claim 7, wherein the sequence is cyclic-shifted in accordance with a different cyclic shift value for each of a plurality of SC-FDMA (single carrier frequency division multiple access) symbols of each of the 2 slots of the UL subframe for transmitting the UL control information.

12. The method of claim 7, wherein a plurality of PUCCH transmission resources are allocated to the user equipment and wherein at least one of a resource block (RB), an orthogonal code (OC) and a cyclic shift (CS) is differently allocated to each of a plurality of the PUCCH transmission resources.

13. A user equipment, which transmits an uplink (UL) control information via a physical uplink control channel (PUCCH) in a wireless communication system, comprising:

a transmitting module transmitting an uplink (UL) signal to a base station;

a receiving module receiving a downlink (DL) signal from the base station; and

a processor controlling the user equipment including the receiving module and the transmitting module, the processor configured to;

generate N_SF blocks for each of 2 slots of a UL subframe, by generating a block by multiplying a modulated symbol indicating the UL control information by a cyclic-shifted sequence,

block-wise spread the N_SF blocks using orthogonal code,

mapping N_RS reference signals (RSs) and the N_SF block-wide spread blocks to the 2 slots of the UL subframe, respectively, and transmit the N_RS RSs and the N_SF block-wide spread blocks to the base station via the transmitting module,

wherein the number N_SF of the blocks transmitted in the 2^nd slot of the UL subframe has a same value for a case of configuring a transmission of sounding reference signal (SRS) in the UL subframe and a case of not configuring the transmission of the SRS.

14. A base station, which receives an uplink (UL) control information via a physical uplink control channel (PUCCH) in a wireless communication system, comprising:

a transmitting module transmitting a downlink signal to at least one user equipment;

a receiving module receiving an uplink signal from the at least one user equipment; and

a processor controlling the base station including the receiving module and the transmitting module, the processor configured to receive N_RS reference signals (RSs) and N_SF block-wide spread blocks, which are mapped to 2 slots of a UL subframe, respectively, from the user equipment,

wherein the N_SF block-wide spread blocks are generated by the user equipment by generating a block by multiplying a modulated symbol indicating the UL control information by a cyclic-shifted sequence, and generating N_SF blocks for each of the 2 slots of the UL subframe, and then block-wise spreading the N_SF blocks using orthogonal code and

wherein the number N_SF of the blocks transmitted in the 2^nd slot of the UL subframe has a same value for a case of configuring a transmission of sounding reference signal (SRS) in the UL subframe and a case of not configuring the transmission of the SRS.