METHOD AND APPARATUS FOR CONFIGURING SEARCH SPACE OF A DOWNLINK CONTROL CHANNEL
First Claim
1. A method by a terminal in a wireless communication system, the method comprising:
- identifying a quantity of resource elements (REs) in a physical resource block (PRB) pair for an enhanced physical downlink control channel (E-PDCCH);
identifying a quantity of E-PDCCH candidates of each of aggregation levels based on the identified quantity of REs in the PRB pair; and
monitoring the E-PDCCH candidates in an E-PDCCH search space based on the identified quantity of E-PDCCH candidates.
0 Assignments
0 Petitions
Accused Products
Abstract
A method for configuring a search space of a downlink control channel is provided. The method includes determining the parameters for Enhanced Physical Downlink Control Channel (E-PDCCH) candidates of each aggregate level according to the number of Resource Elements (RE) in a subframe and/or the number of bits of Downlink Control Information (DCI) formats, when the parameters for E-PDCCH candidates of E-PDCCH search space is configured, determining, by a User Equipment (UE), the parameters for E-PDCCH candidates according to a current downlink subframe and a detected DCI format, and detecting blindly, by the UE, the E-PDCCH candidates in the E-PDCCH search space corresponding to the parameters for E-PDCCH candidates. The present invention also provides a UE and a base station. Application of the present invention can improve the flexibility of the base station scheduling, and reduce the possibility that the E-PDCCHs of different UEs block each other.
-
Citations
28 Claims
-
1. A method by a terminal in a wireless communication system, the method comprising:
-
identifying a quantity of resource elements (REs) in a physical resource block (PRB) pair for an enhanced physical downlink control channel (E-PDCCH); identifying a quantity of E-PDCCH candidates of each of aggregation levels based on the identified quantity of REs in the PRB pair; and monitoring the E-PDCCH candidates in an E-PDCCH search space based on the identified quantity of E-PDCCH candidates. - View Dependent Claims (2, 3, 4, 5, 6, 7)
-
-
8. A terminal in a wireless communication system, the terminal comprising:
-
a transceiver configured to transmit and receive a signal; and a controller configured to; identify a quantity of resource elements (REs) in a physical resource block (PRB) pair for an enhanced physical downlink control channel (E-PDCCH), identify a quantity of E-PDCCH candidates of each of aggregation levels based on the identified quantity of REs in the PRB pair, and monitor the E-PDCCH candidates in an E-PDCCH search space based on the identified quantity of E-PDCCH candidates. - View Dependent Claims (9, 10, 11, 12, 13, 14)
-
-
15. A method by a base station in a wireless communication system, the method comprising:
-
identifying a quantity of resource elements (REs) in a physical resource block (PRB) pair for an enhanced physical downlink control channel (E-PDCCH); identifying a quantity of E-PDCCH candidates of each of aggregation levels based on the identified quantity of REs in the PRB pair; selecting the E-PDCCH candidate in an E-PDCCH search space based on the quantity of E-PDCCH candidates; and transmitting the E-PDCCH using resources corresponding to the selected E-PDCCH candidate. - View Dependent Claims (16, 17, 18, 19, 20, 21)
-
-
22. A base station in a wireless communication system, the base station comprising:
-
a controller configured to transmit and receive a signal; and a controller configured to; identify a quantity of resource elements (REs) in a physical resource block (PRB) pair for an enhanced physical downlink control channel (E-PDCCH), identify a quantity of E-PDCCH candidates of each of aggregation levels based on the identified quantity of REs in the PRB pair, select the E-PDCCH candidate in an E-PDCCH search space based on the quantity of E-PDCCH candidates, and transmit the E-PDCCH using resources corresponding to the selected E-PDCCH candidate. - View Dependent Claims (23, 24, 25, 26, 27, 28)
-
Specification