Method for allocating resources for downlink control channel in wireless communication system and device for same
First Claim
1. A method for allocating a resource for a downlink control channel by a base station (BS) in a wireless communication system, the method comprising:
- mapping resource elements for a channel state information reference signal (CSI-RS) transmission in each resource block for the downlink control channel into a first predetermined number of resource element groups equally;
mapping remaining resource elements other than the resource elements for the CSI-RS transmission into the first predetermined number of resource element groups by dividing the remaining resource elements in each resource block for the downlink control channel along a frequency domain;
configuring each control channel element using a second predetermined number of resource element groups among the first predetermined number of resource element groups;
allocating the control channel elements as the resource for the downlink control channel, wherein the number of control channel elements equals an aggregation level of the downlink control channel, andtransmitting the downlink control channel using the allocated resource,wherein the number of available resource elements included in each resource element group is equivalent.
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Abstract
A method for allocating resources for a downlink control channel by a base station in a wireless communication system is disclosed. Specifically, the method comprises the steps of: mapping resource elements to resource element groups for each of resource blocks; forming control channel elements by using a predetermined number of resource element groups from among the resource element groups; and allocating control channel elements of a number corresponding to an aggregation level of the downlink control channel as resources for the downlink control channel, wherein the number of available resource elements included in each of the resource element groups or the number of available resource elements included in each of the control channel elements of a number corresponding to the aggregation level is uniform.
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Citations
11 Claims
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1. A method for allocating a resource for a downlink control channel by a base station (BS) in a wireless communication system, the method comprising:
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mapping resource elements for a channel state information reference signal (CSI-RS) transmission in each resource block for the downlink control channel into a first predetermined number of resource element groups equally; mapping remaining resource elements other than the resource elements for the CSI-RS transmission into the first predetermined number of resource element groups by dividing the remaining resource elements in each resource block for the downlink control channel along a frequency domain; configuring each control channel element using a second predetermined number of resource element groups among the first predetermined number of resource element groups; allocating the control channel elements as the resource for the downlink control channel, wherein the number of control channel elements equals an aggregation level of the downlink control channel, and transmitting the downlink control channel using the allocated resource, wherein the number of available resource elements included in each resource element group is equivalent. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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Specification