METHOD AND DEVICE FOR TRANSMITTING CONTROL CHANNEL

• US 20140078999A1
• Filed: 11/22/2013
• Published: 03/20/2014
• Est. Priority Date: 07/27/2012
• Status: Active Grant

• Current Assignee: Huawei Device Company Limited (Huawei Investment & Holding Co., Ltd.)
• Original Assignee: Huawei Device Company Limited (Huawei Investment & Holding Co., Ltd.)
• Inventors: WANG, Jian
• Granted Patent: US 9,445,401 B2
• Time in Patent Office: Days
• US Class Current: 370/329
• CPC Class Codes: H04L 5/0007 the frequencies being orthogonal, e.g. OFDM(A), DMT
• CPC Class Codes: H04L 5/0053 Allocation of signaling, i.e. of overhead other than pilot signals
• CPC Class Codes: H04W 72/0446 Resources in time domain, e.g. slots or frames
• CPC Class Codes: H04W 72/20 Control channels or signalling for resource management

Abstract

A method, an apparatus, and a device for transmitting a control channel are disclosed. The method includes: generating at least one eCCE, and transmitting the control channel through the at least one eCCE, where a process of generating each eCCE specifically includes: determining at least two physical resource block (PRB) pairs for transmitting the control channel, where each PRB pair of the at least two PRB pairs correspond to multiple enhanced resource element groups eREGs and the multiple eREGs have eREG attribute information that is not exactly the same; and selecting each eREG from the multiple eREGs corresponding to each PRB pair, where the selected eREGs have different eREG attribute information, and forming an eCCE with the selected eREGs. Embodiments of the present invention are applied to implement generation of an eCCE according to an eREG, so as to transmit an enhanced control channel through the eCCE.

Claims

1. A method for transmitting a control channel, comprising:

generating at least one enhanced control channel element (eCCE); and

transmitting the control channel through the at least one eCCE;

wherein;

the generating each eCCE comprises;

determining at least two physical resource block (PRB) pairs for transmitting the control channel, wherein each PRB pair of the at least two PRB pairs corresponds to multiple enhanced resource element groups (eREGs) and the multiple eREGs have eREG attribute information that is not exactly the same; and

selecting each eREG from the multiple eREGs corresponding to each PRB pair, wherein the selected eREGs have different eREG attribute information, and forming an eCCE with the selected eREGs.

2. The method according to claim 1, wherein each eREG among the multiple eREGs comprises a specified number of resource elements (REs), REs comprised in each PRB pair are divided according to the specified number to obtain multiple groups, and each group corresponds to an eREG.

3. The method according to claim 1, wherein:

the eREG attribute information comprises resource location information, and that the selected eREGs have the different eREG attribute information refers to that the selected eREGs have different resource location information;

the eREG attribute information comprises resource port number information, and that the selected eREGs have the different eREG attribute information refers to that the selected eREGs have different resource port number information;

or

the eREG attribute information comprises resource location information and resource port number information, and that the selected eREGs have the different eREG attribute information refers to that the selected eREGs have the different resource location information, or that the selected eREGs have the different resource port number information, or that the selected eREGs have the different resource location information and resource port number information.

4. The method according to claim 3, wherein the eREG attribute information further comprises the number of punches of an RE;

and

that the selected eREGs have the different eREG attribute information further comprises that the selected eREGs have different numbers of the punches.

5. The method according to claim 1, further comprising:

selecting at least two eCCEs from the generated eCCEs, wherein among eREGs of the at least two eCCEs, eREGs belonging to a same PRB pair have different resource port number information; and

wherein the transmitting the control channel through the at least one eCCE comprises;

transmitting the control channel through the selected at least two eCCEs.

6. A device for transmitting a control channel, comprising:

a processor, configured to generate at least one enhanced control channel element (eCCE); and

a transmitter, configured to transmit the control channel through the at least one eCCE generated by the processor;

wherein;

the processor is configured to determine at least two physical resource block (PRB) pairs for transmitting the control channel when each eCCE is generated, wherein each PRB pair of the at least two PRB pairs correspond to multiple enhanced resource element groups (eREGs) and the multiple eREGs have eREG attribute information that is not exactly the same; and

select an eREG from the multiple eREGs corresponding to each PRB pair, wherein the selected eREGs have different eREG attribute information, and form an eCCE with the selected eREGs.

7. The device according to claim 6, wherein each eREG among the multiple eREGs comprises a specified number of resource elements (REs), REs comprised in each PRB pair are divided according to the specified number to obtain multiple groups, and each group is corresponding to an eREG.

8. The device according to claim 6, wherein:

the eREG attribute information comprises resource location information, and that the selected eREGs have different eREG attribute information refers to that the selected eREGs have different resource location information;

the eREG attribute information comprises resource port number information, and that the selected eREGs have the different eREG attribute information refers to that the selected eREGs have different resource port number information;

or

the eREG attribute information comprises resource location information and resource port number information, and that the selected eREGs have the different eREG attribute information refers to that the selected eREGs have the different resource location information, or that the selected eREGs have the different resource port number information, or that the selected eREGs have the different resource location information and resource port number information.

9. The device according to claim 8, wherein the eREG attribute information further comprises the number of punches of an RE;

and

that the selected eREGs have the different eREG attribute information further comprises that the selected eREGs have different numbers of the punches.

10. The device according to claim 6, wherein:

the processor is further configured to select at least two eCCEs from the generated eCCEs, wherein among eREGs of the at least two eCCEs, eREGs belonging to a same PRB pair have different resource port number information; and

the transmitter is configured to transmit the control channel through the at least two eCCEs selected by the processor.