METHOD AND APPARATUS FOR RECEIVING CONTROL INFORMATION THROUGH BLIND DECODING OF AN ENHANCED PHYSICAL DOWNLINK CONTROL CHANNEL (EPDCCH)
First Claim
1. A method for receiving control information by a user equipment (UE) in a wireless communication system, the method comprising:
- receiving, via higher layer signaling, an enhanced physical downlink control channel (EPDCCH) configuration including a scrambling sequence parameter for an EPDCCH demodulation reference signal (DMRS);
obtaining an EPDCCH DMRS sequence based on an equation ‘
(└
ns/2┘
+1)·
(2X+1)·
216+nSCID’
, where ‘
ns’
denotes a slot number, ‘
X’
denotes the EPDCCH DMRS scrambling sequence parameter included in the EPDCCH configuration and ‘
nSCID’
denotes a scrambling identity for the EPDCCH DMRS; and
receiving downlink control information (DCI) through an EPDCCH using the EPDCCH DMRS sequence,wherein the scrambling identity ‘
nSCID’
for the EPDCCH DMRS is fixed to a predetermined value.
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Accused Products
Abstract
One embodiment of the present invention provides a method for enabling a terminal to receive control information in a wireless communication system, comprising the steps of: determining resource units for Enhanced Physical Downlink Control Channel (EPDCCH) of a plurality of resource units, with respect to each of one or more resource sets; and blind-decoding the resource units for the EPDCCH with respect to each of the one or more resource sets, wherein each of the one or more resource sets is set for one of localized EPDCCH transmission or distributed EPCCH transmission.
5 Citations
15 Claims
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1. A method for receiving control information by a user equipment (UE) in a wireless communication system, the method comprising:
-
receiving, via higher layer signaling, an enhanced physical downlink control channel (EPDCCH) configuration including a scrambling sequence parameter for an EPDCCH demodulation reference signal (DMRS); obtaining an EPDCCH DMRS sequence based on an equation ‘
(└
ns/2┘
+1)·
(2X+1)·
216+nSCID’
, where ‘
ns’
denotes a slot number, ‘
X’
denotes the EPDCCH DMRS scrambling sequence parameter included in the EPDCCH configuration and ‘
nSCID’
denotes a scrambling identity for the EPDCCH DMRS; andreceiving downlink control information (DCI) through an EPDCCH using the EPDCCH DMRS sequence, wherein the scrambling identity ‘
nSCID’
for the EPDCCH DMRS is fixed to a predetermined value. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
-
-
9. A user equipment (UE) comprising:
-
a receiver to receive, via higher layer signaling, an enhanced physical downlink control channel (EPDCCH) configuration including a scrambling sequence parameter for an EPDCCH demodulation reference signal (DMRS), and to receive downlink control information (DCI) through an EPDCCH using a EPDCCH DMRS sequence; and a processor to obtain the EPDCCH DMRS sequence based on an equation ‘
(└
ns/2┘
+1)·
(2X+1)·
216+nSCID’
, where ‘
ns’
denotes a slot number, ‘
X’
denotes the EPDCCH DMRS scrambling sequence parameter included in the EPDCCH configuration and ‘
nSCID’
denotes a scrambling identity for the EPDCCH DMRS,wherein the scrambling identity ‘
nSCID’
for the EPDCCH DMRS is fixed to a predetermined value. - View Dependent Claims (10, 11, 12, 13, 14, 15)
-
Specification