METHOD OF TRANSMITTING AND RECEIVING CONTROL INFORMATION BASED ON SPATIAL-MULTIPLEXING GAIN
First Claim
1. A transmission method, comprising:
- allocating resource blocks (RBs) to at least one data stream transmitted via an enhanced-physical downlink shared channel (E-PDSCH);
generating control information for each of the RBs;
allocating the control information for each of the RBs to a resource region for an enhanced-physical downlink control channel (E-PDCCH); and
performing one of;
beamforming of the control information for each of the RBs based on the resource region,spatial-multiplexing of the control information associated with the RBs based on the resource region, andbeamforming-based spatial-multiplexing of the control information associated with the RBs based on the resource region.
1 Assignment
0 Petitions
Accused Products
Abstract
A control information transmission and reception method based on a spatial-multiplexing gain, are provided. The control information may be transmitted by obtaining the spatial-multiplexing gain using an E-PDCCH region, and thus, a transmission efficiency of the control information may be improved. The common control information used for decoding the E-PDCCH may be transmitted via a PDCCH, and thus, a base station supporting both a general terminal and an enhanced terminal may effectively transmit the control information. Information associated with an indicator indicating whether the E-PDCCH is to be used during a subsequent resource allocation period may be transmitted, and thus, whether decoding with respect to the E-PDCCH is to be performed during the subsequent allocation period may be determined.
-
Citations
31 Claims
-
1. A transmission method, comprising:
-
allocating resource blocks (RBs) to at least one data stream transmitted via an enhanced-physical downlink shared channel (E-PDSCH); generating control information for each of the RBs; allocating the control information for each of the RBs to a resource region for an enhanced-physical downlink control channel (E-PDCCH); and performing one of; beamforming of the control information for each of the RBs based on the resource region, spatial-multiplexing of the control information associated with the RBs based on the resource region, and beamforming-based spatial-multiplexing of the control information associated with the RBs based on the resource region. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
-
-
16. A reception method, comprising:
-
extracting a previous indicator included in multiple pieces of control information received in a previous resource allocation period; determining, using the previous indicator, a channel through which multiple pieces of target control information are transmitted, from among an E-PDCCH and a PDCCH; and decoding the multiple pieces of target control information based on the determination. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23, 24, 25, 26)
-
-
27. A reception method, comprising:
-
receiving control information that is one of beamforming-processed, spatial-multiplexed, and beamforming-based spatial-multiplexed, via an E-PDCCH; decoding the control information based on a blind decoding scheme; recognizing, based on the decoded control information, RBs allocated to least one data stream that is transmitted via the E-PDSCH; and receiving at least one data stream based on the RBs allocated to the at least one data stream. - View Dependent Claims (28, 29)
-
-
30. A transmitter, comprising:
-
a scheduler to allocate RBs to at least one data stream transmitted via an E-PDSCH, to generate control information for each of the RBs, and to allocate the control information for each of the RBs to a resource region for an E-PDCCH; and a spatial-multiplexer to perform one of beamforming, spatial-multiplexing, and beamforming-based spatial-multiplexing with respect to each of the RBs, based on the resource region.
-
-
31. A receiver, comprising:
-
a memory to store a previous indicator included in control information received in a previous resource allocation period; and a processor to determine, based on the previous indicator, a channel through which target control information is transmitted, from among an E-PDCCH or a PDCCH, and to decode the target control information based on the determination.
-
Specification