Methods for transmitting and receiving of control channel in wireless communication systems

• US 10,009,896 B2
• Filed: 06/21/2012
• Issued: 06/26/2018
• Est. Priority Date: 06/21/2011
• Status: Active Grant

• Current Assignee: Electronics and Telecommunications Research Institute
• Original Assignee: Electronics and Telecommunications Research Institute
• Inventors: Noh, Tae Gyun, Ko, Young Jo, Seo, Bang Won, Ahn, Jae Young
• Primary Examiner(s): Ko, Sithu
• Assistant Examiner(s): Orgad, Edan
• Application Number:
  US13/529,310
• Publication Number:
  US 20130003639A1
• Time in Patent Office: 2,196 Days
• Field of Search: 370312, 370329, 455450
• 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 4/20 Services signaling; Auxiliary data signalling, i.e. transmitting data via a non-traffic channel
• CPC Class Codes: H04W 72/046 the resource being in the space domain, e.g. beams
• CPC Class Codes: H04W 72/20 Control channels or signalling for resource management
• CPC Class Codes: H04W 72/23 in the downlink direction of a wireless link, i.e. towards a terminal

Abstract

A method of transmitting and receiving a control channel in a wireless communication system is provided. A base station allocates a data channel to a radio resource, adds start position information of the data channel into a payload of a control channel, and performs signaling for indication information on the start position information added into the payload of the control channel to a terminal. Accordingly, the legacy system and the enhanced system can efficiently transmit a control channel.

Claims

1. A communication method for a user equipment (UE), the communication method comprising:

receiving, by the UE, a first message from an eNode-B;

receiving, by the UE, control information from the eNode-B, wherein the control information is received through a physical downlink control channel (PDCCH) of a subframe;

determining, by the UE, whether the subframe is allocated for Multicast-Broadcast Single Frequency Network (MBSFN) at least based on the control information; and

receiving, by the UE, data in the subframe from the eNode-B,

wherein the first message comprises a plurality of parameter sets, and the control information comprises an indicator indicating one of the plurality of parameter sets, and

wherein each of the plurality of parameter sets indicates a starting symbol of a downlink shared channel in a subframe on which data is transmitted and an MBSFN subframe configuration.

4. The method of claim 1, wherein the control information is transmitted from a first cell and the data is transmitted from a second cell.

6. The method of claim 1, wherein both the control information and the data are received in the subframe.

7. The method of claim 1, wherein the control information is received from a first cell and the data is received from a second cell.

8. The method of claim 1, further comprising:

determining, by the UE, a radio resource location of a reference signal in the subframe at least based on the control information.

2. A communication method for an eNode-B, comprising:

transmitting, by the eNode-B, a first message;

generating, by the eNode-B, control information;

transmitting, by the eNode-B, the control information through a physical downlink control channel (PDCCH) of a subframe; and

transmitting data in the subframe,

wherein the control information allows a user equipment (UE) to determine whether the subframe is allocated for Multicast-Broadcast Single Frequency Network (MBSFN),

wherein the first message comprises a plurality of parameter sets, and the control information comprises an indicator indicating one of the plurality of parameter sets, and

wherein each of the plurality of parameter sets indicates a starting symbol of a downlink shared channel in a subframe on which data is transmitted and an MBSFN subframe configuration.

3. The method of claim 2, wherein both the control information and the data are transmitted in the subframe.

5. The method of claim 2, wherein the indicator comprises a predetermined number of bits.

9. A communication apparatus, comprising:

a memory; and

a processor operably coupled to the memory,

wherein the processor, when executing program instructions stored in the memory, is configured to;

cause the apparatus to receive a first message from an eNode-B;

cause the apparatus to receive control information from the eNode-B, the control information being received through a physical downlink control channel (PDCCH) of a subframe;

determine whether the subframe is allocated for Multicast-Broadcast Single Frequency Network (MBSFN) at least based on the control information; and

cause the apparatus to receive data in the subframe from the eNode-B,

wherein the first message comprises a plurality of parameter sets, and the control information comprises an indicator indicating one of the plurality of parameter sets, and

wherein each of the plurality of parameter sets indicates a starting symbol of a downlink shared channel in a subframe on which data is transmitted and an MBSFN subframe configuration.

10. The apparatus of claim 9, wherein both the control information and the data are transmitted in the subframe.

11. The apparatus of claim 9, wherein the control information is received from a first cell and the data is received from a second cell.

12. The apparatus of claim 9, wherein the processor is further configured to:

determine a radio resource location of a reference signal in the subframe at least based on the control information.

13. An apparatus for an eNode-B, the apparatus comprising:

a memory; and

a processor operably coupled to the memory,

wherein the processor, when executing program instructions stored in the memory;

is configured to;

cause the eNode-B to transmit a first message;

generate control information;

cause the eNode-B to transmit the control information through a physical downlink control channel (PDCCH) of a subframe; and

cause the eNode-B to transmit data in the subframe,

wherein the control information allows a user equipment (UE) to determine whether the subframe is allocated for Multicast-Broadcast Single Frequency Network (MBSFN),

wherein the first message comprises a plurality of parameter sets, and the control information comprises an indicator indicating one of the plurality of parameter sets, and

wherein each of the plurality of parameter sets indicates a starting symbol of a downlink shared channel in a subframe on which data is transmitted and an MBSFN subframe configuration.

14. The apparatus of claim 13, wherein both the control information and the data are transmitted in the subframe.

15. The apparatus of claim 13, wherein the control information is transmitted from a first cell and the data is transmitted from a second cell.

16. The apparatus of claim 13, wherein the indicator comprises a predetermined number of bits.

17. An apparatus for a user equipment (UE), the apparatus comprising:

a memory; and

a processor operably coupled to the memory,

wherein the processor, when executing program instructions stored in the memory, is configured to;

cause the UE to receive a first message from an eNode-B;

cause the UE to receive control information from the eNode-B, the control information being received through a physical downlink control channel (PDCCH) of a subframe;

determine whether the subframe is allocated for Multicast-Broadcast Single Frequency Network (MBSFN) at least based on the control information; and

cause the UE to receive data in the subframe from the eNode-B,

wherein the first message comprises a plurality of parameter sets, and the control information comprises an indicator indicating one of the plurality of parameter sets, and

wherein each of the plurality of parameter sets indicates a starting symbol of a downlink shared channel in a subframe on which data is transmitted and an MBSFN subframe configuration.

18. The apparatus of claim 17, wherein both the control information and the data are transmitted in the subframe.

19. The apparatus of claim 17, wherein the control information is received from a first cell and the data is received from a second cell.

20. The apparatus of claim 17, wherein the processor is further configured to:

determine a radio resource location of a reference signal in the subframe at least based on the control information.