Method of transmitting and receiving control information based on spatial-multiplexing gain
First Claim
1. A reception method, comprising:
- extracting an indicator included in a first control information received in a first allocation period;
determining, using the indicator, a channel that will contain a second control information in a second allocation period, the channel comprising one of an E-PDCCH or a PDCCH; and
performing, based on the determined channel, one of blind decoding the second control information from the E-PDCCH and decoding the second control information from the PDCCH.
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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.
14 Citations
18 Claims
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1. A reception method, comprising:
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extracting an indicator included in a first control information received in a first allocation period; determining, using the indicator, a channel that will contain a second control information in a second allocation period, the channel comprising one of an E-PDCCH or a PDCCH; and performing, based on the determined channel, one of blind decoding the second control information from the E-PDCCH and decoding the second control information from the PDCCH. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A reception method, comprising:
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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, Resource Blocks (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 (15, 16, 17)
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18. A receiver, comprising:
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a memory to store an indicator included in a first control information received in a first resource allocation period; and a processor to determine, based on the indicator, a channel that contains a second control information transmitted in a second period, the channel comprising one of an E-PDCCH or a PDCCH, and to decode, based on the determination, the second control information, wherein the second control information comprises multiple pieces of information corresponding to respective data streams, and wherein the processor decodes each of the multiple pieces of information in an order that is based on a signal to noise ration (SNR) of each corresponding piece of information, in response to determining that the E-PDCCH contains the second control information.
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Specification