METHOD FOR TRANSMITTING SOUNDING REFERENCE SIGNAL IN WIRELESS COMMUNICATION SYSTEM AND APPARATUS FOR SAME

• US 20120218967A1
• Filed: 10/29/2010
• Published: 08/30/2012
• Est. Priority Date: 01/19/2010
• Status: Active Grant

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: Moon, Sung Ho, Chung, Jae Hoon, Noh, Min Seok
• Granted Patent: US 8,873,415 B2
• Time in Patent Office: Days
• US Class Current: 370/329
• CPC Class Codes: H04W 24/00 Supervisory, monitoring or testing arrangements
• CPC Class Codes: H04W 72/0453 Resources in frequency domain, e.g. a carrier in FDMA

Abstract

The present invention relates to a method in which a terminal transmits a sounding reference signal in a wireless communication system. Specifically, the method includes: receiving sounding reference signal setting information from a base station; and transmitting the sound reference signal to the base station on the basis of the sounding reference signal setting information, wherein an upstream link signal based on the sounding reference signal is transmitted over an upstream link control channel, and a frequency band corresponding to an upstream link data channel and a frequency band corresponding to an upstream link control channel are allocated as frequency resources for the sounding reference signal.

Claims

1. A method for transmitting a sounding reference signal in a wireless communication system, the method comprising the steps of:

receiving sounding reference signal setting information from a base station; and

transmitting the sound reference signal to the base station on the basis of the sounding reference signal setting information,

wherein an uplink signal based on the sounding reference signal is transmitted through an uplink control channel, and frequency hopping in a slot unit is not performed for the uplink control channel.

2. The method according to claim 1, wherein the sounding reference signal is transmitted through a frequency band corresponding to an uplink data channel and a frequency band corresponding to the uplink control channel.

3. The method according to claim 1, wherein the sounding reference signal is transmitted through a frequency band corresponding to the uplink control channel, and a basic unit of a bandwidth for transmitting the sounding reference signal is less than four resource blocks.

4. A method for transmitting a sounding reference signal from a user equipment in a wireless communication system, the method comprising the steps of:

transmitting a periodical sounding reference signal to a base station for a first subframe; and

transmitting an additional sounding reference signal from the base station for a second subframe,

wherein the second subframe is subsequent to the first subframe.

5. The method according to claim 4, wherein the additional sounding reference signal has a transmission period the same as that of the periodical sounding reference signal.

6. The method according to claim 4, wherein, if the additional sounding reference signal is set equally to the periodical sounding reference signal, at least one of orthogonal cover codes, random sequences and masking sequences is applied to the first subframe and the second subframe.

7. A user equipment in a wireless communication system, the user equipment comprising:

a reception module receiving sounding reference signal setting information from a base station;

a processor allocating a resource for transmitting the sound reference signal on the basis of the sounding reference signal setting information; and

a transmission module transmitting the sounding reference signal to the base station by using the allocated resource,

wherein the transmission module transmits an uplink signal based on the sounding reference signal through an uplink control channel, and frequency hopping in a slot unit is not performed for the uplink control channel.

8. The user equipment according to claim 7, wherein the processor allocates a frequency band corresponding to an uplink data channel and a frequency band corresponding to the uplink control channel as frequency resources for the sounding reference signal.

9. The user equipment according to claim 7, wherein the processor allocates a frequency band corresponding to the uplink control channel as a frequency resource for the sounding reference signal, and a basic unit of a bandwidth for transmitting the sounding reference signal is less than four resource blocks.

10. A user equipment in a wireless communication system, the user equipment comprising:

a processor allocating a resource for transmitting a sounding reference signal; and

a transmission module transmitting the sounding reference signal to a base station by using the allocated resource,

wherein the processor allocates a first subframe as a time resource for a periodical sounding reference signal and allocates a second subframe as a time resource for an additional sounding reference signal, and

the second subframe is subsequent to the first subframe.

11. The user equipment according to claim 10, wherein the processor sets a transmission period of the additional sounding reference signal equally to that of the periodical sounding reference signal.

12. The user equipment according to claim 10, wherein the processor, if the additional sounding reference signal is set equally to the periodical sounding reference signal, applies at least one of orthogonal cover codes, random sequences and masking sequences to the first subframe and the second subframe.