Method for transmitting control information and apparatus for same

• US 8,724,574 B2
• Filed: 07/27/2010
• Issued: 05/13/2014
• Est. Priority Date: 07/27/2009
• Status: Expired due to Fees

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: Yang, Suck Chel, Kim, Min Gyu, Ahn, Joon Kui, Seo, Dong Youn
• Primary Examiner(s): Pham, Chi
• Assistant Examiner(s): CHOWDHURY, FAHMIDA S
• Application Number:
  US13/380,968
• Publication Number:
  US 20120106495A1
• Time in Patent Office: 1,386 Days
• Field of Search: 370/455
• US Class Current: 370/329
• CPC Class Codes: H04L 5/001 the frequencies being arranged in component carriers
• 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
• CPC Class Codes: H04L 5/0094 Indication of how sub-channels of the path are allocated
• CPC Class Codes: H04W 24/10 Scheduling measurement reports ; Arrangements for measurement reports
• CPC Class Codes: H04W 72/23 in the downlink direction of a wireless link, i.e. towards a terminal

Abstract

A method according to an embodiment includes receiving, from a base station, first component information for transmitting first channel information for a first frequency band; receiving, from the base station, second component information for transmitting second channel information for a second frequency band added to the first frequency band; transmitting the first channel information to the base station in accordance with the first component information; and transmitting the second channel information to the base station in accordance with the second component information. When the point of time of the transmission of the first channel information and the point of time of the transmission of the second channel information coincide with each other, either the first channel information or the second channel information is transmitted in accordance with a predetermined drop rule.

Claims

1. A method for transmitting by a user equipment control information for a downlink component carrier having a specific bandwidth in a wireless communication system, wherein the downlink component carrier comprises a system band in a middle of the specific bandwidth and a segment band on either side of the specific bandwidth in a frequency domain, the method comprising:

receiving, from a base station, first configuration information related to first channel quality information for at least portion of the system band;

receiving, from the base station, second configuration information related to second channel quality information for the segment band;

transmitting the first channel quality information to the base station based upon the first configuration information; and

transmitting the second channel quality information to the base station based upon the second configuration information,

wherein, when a transmission timing of the first channel quality information coincides with a transmission timing of the second channel quality information, one of the first and second channel quality information is dropped.

2. The method of claim 1, wherein, when a transmission timing of the first channel quality information coincides with a transmission timing of the second channel quality information, the second channel quality information is dropped.

3. The method of claim 1, wherein, when a transmission timing of the first channel quality information coincides with a transmission timing of the second channel quality information, channel quality information for a smaller frequency band is dropped.

4. The method of claim 1, wherein, when a transmission timing of the first channel quality information coincides with a transmission timing of the second channel quality information, channel quality information with a smaller transmission cycle period is dropped.

5. The method of claim 1, wherein, when a transmission timing of the first channel quality information coincides with a transmission timing of the second channel quality information, each channel quality information is alternately dropped per each subframe.

6. A method for transmitting by a user equipment control information for a downlink component carrier having a specific bandwidth in a wireless communication system, the method comprising:

receiving, from a base station, first configuration information related to first channel quality information for the system band;

transmitting the first channel quality information to the base station based upon the first configuration information; and

optionally transmitting second channel quality information for the segment band to the base station by applying the first configuration information,

wherein, when a transmission timing of the first channel quality information coincides with a transmission timing of the second channel quality information and the at least portion of the system band is adjacent to the segment band, the first and second channel quality information are transmitted at the same time.

7. The method of claim 6, further comprising:

when the first and second channel quality information are transmitted at the same time, transmitting index information of a subband of the at least portion of the system band to the base station.

8. A method for transmitting by a user equipment reference signals for a uplink component carrier having a specific bandwidth in a wireless communication system, wherein the uplink component carrier comprises a system band in a middle of the specific bandwidth and a segment band on either side of the specific bandwidth in a frequency domain, the method comprising:

receiving, from the base station, first configuration information related to a first reference signal for at least portion of the system band;

receiving, from the base station, second configuration information related to a second reference signal for the segment band;

transmitting the first reference signal to the base station based upon the first configuration information; and

transmitting the second reference signal to the base station based upon the second configuration information,

wherein, when a transmission timing of the first reference signal coincides with a transmission timing of the second reference signal, one of the first and second reference signals is dropped.

9. The method of claim 8, wherein, when a transmission timing of the first reference signal coincides with a transmission timing of the second reference signal, the second reference signal is dropped.

10. The method of claim 8, wherein, when a transmission timing of the first reference signal coincides with a transmission timing of the second reference signal, a reference signal for a smaller frequency band is dropped.

11. The method of claim 8, wherein, based upon the predetermined dropping rule, when a transmission timing of the first reference signal coincides with a transmission timing of the second reference signal, a reference signal having a smaller transmission cycle period is dropped.

12. The method of claim 8, wherein, when a transmission timing of the first reference signal coincides with a transmission timing of the second reference signal, each reference signal is alternately dropped per each subframe.

13. A method for transmitting by a user equipment reference signals for a uplink component carrier having a specific bandwidth in a wireless communication system, wherein the uplink component carrier comprises a system band in a middle of the specific bandwidth and a segment band on either side of the specific bandwidth in a frequency domain, the method comprising:

receiving, from a base station, first configuration information for transmitting a first reference signal for at least portion of the system band;

transmitting the first reference signal to the base station based upon the first configuration information; and

optionally transmitting a second reference signal for the segment band to the base station by applying the first configuration information,

wherein, when a transmission timing of the first channel quality information coincides with a transmission timing of the second channel quality information and the at least portion of the system band is adjacent to the segment band, the first and second reference signals are transmitted at the same time.

14. A user equipment for transmitting control information for a downlink component carrier having a specific bandwidth in a wireless communication system, wherein the downlink component carrier comprises a system band in a middle of the specific bandwidth and a segment band on either side of the specific bandwidth in a frequency domain, the user equipment comprising:

a reception module configured to receive a radio signal;

a transmission module configured to transmit a radio signal; and

a processor configured to;

receive, from a base station, first configuration information relate to first channel quality information for at least portion of the system band,

receive, from the base station, second configuration information related to second channel quality information for the segment band,

transmit the first channel quality information to the base station based upon the first configuration information, and

transmit the second channel quality information to the base station based upon the second configuration information,

wherein, when a transmission timing of the first channel quality information coincides with a transmission timing of the second channel quality information, one of the first and second channel quality information is dropped.

15. A user equipment for transmitting control information for a uplink component carrier having a specific bandwidth in a wireless communication system, wherein the uplink component carrier comprises a system band in a middle of the specific bandwidth and a segment band on either side of the specific bandwidth in a frequency domain, the user equipment comprising:

a reception module configured to receive a radio signal;

a transmission module configured to transmit a radio signal; and

a processor configured to;

receive, from the base station, first configuration information related to a first reference signal for at least portion of the system band,

receive, from the base station, second configuration information related to a second reference signal for the segment band,

transmit the first reference signal to the base station based upon the first configuration information, and

transmit the second reference signal to the base station based upon the second configuration information,

wherein, when a transmission timing of the first reference signal coincides with a transmission timing of the second reference signal, one of the first and second reference signals is dropped.