Downlink control information sending method and device, and downlink control information receiving method and device
First Claim
1. A downlink control information sending method, comprising:
- sending, by a base station device, downlink control information (DCI) on a physical downlink control channel (PDCCH) in a downlink time resource, wherein the DCI instructs user equipment (UE) to receive physical downlink shared channel (PDSCH) information in an uplink time resource, wherein the DCI sent by the base station device comprises a cyclic redundancy check (CRC), a scrambling code, or both the CRC and the scrambling code, wherein the CRC, the scrambling code, or a combination of the CRC and the scrambling code instructs the UE to receive the PDSCH information in the uplink time resource; and
sending, by the base station device, the PDSCH information in the uplink time resource.
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Accused Products
Abstract
The present invention discloses a downlink control information sending method and device, and a downlink control information receiving method and device. The sending method includes: sending, by a base station device, downlink control information DCI on a physical downlink control channel PDCCH of a downlink subframe, where the DCI is used to instruct user equipment UE to receive physical downlink shared channel PDSCH information in an uplink subframe; and sending the PDSCH information in the uplink subframe. In this way, the base station can effectively schedule an uplink subframe, and a purpose of transmitting a downlink service by using an uplink subframe is achieved, which not only improves utilization of a wireless spectrum resource corresponding to the uplink subframe, but also effectively diverts load pressure of a wireless spectrum resource corresponding to a downlink subframe. Therefore, overall utilization of wireless spectrum resources of a system is improved.
13 Citations
20 Claims
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1. A downlink control information sending method, comprising:
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sending, by a base station device, downlink control information (DCI) on a physical downlink control channel (PDCCH) in a downlink time resource, wherein the DCI instructs user equipment (UE) to receive physical downlink shared channel (PDSCH) information in an uplink time resource, wherein the DCI sent by the base station device comprises a cyclic redundancy check (CRC), a scrambling code, or both the CRC and the scrambling code, wherein the CRC, the scrambling code, or a combination of the CRC and the scrambling code instructs the UE to receive the PDSCH information in the uplink time resource; and sending, by the base station device, the PDSCH information in the uplink time resource. - View Dependent Claims (2, 3, 4, 5)
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6. A downlink control information receiving method, comprising:
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receiving, by user equipment (UE), downlink control information (DCI) from a base station device, wherein the DCI instructs the UE to receive physical downlink shared channel (PDSCH) information in an uplink time resource, wherein the DCI from the base station device comprises a cyclic redundancy check (CRC), a scrambling code, or both the CRC and the scrambling code, wherein the CRC, the scrambling code, or a combination of the CRC and the scrambling code instructs the UE to receive the PDSCH information in the uplink time resource; and receiving, by the UE according to the DCI, the PDSCH information from the base station device in the uplink time resource. - View Dependent Claims (7, 8, 9, 10)
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11. A downlink control information sending device, comprising:
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a signal transmitter, configured to send downlink control information (DCI) on a physical downlink control channel (PDCCH) in a downlink time resource, wherein the DCI instructs user equipment (UE) to receive physical downlink shared channel (PDSCH) information in an uplink time resource, wherein the DCI sent by the base station device comprises a cyclic redundancy check (CRC), a scrambling code, or both the CRC and the scrambling code, wherein the CRC, the scrambling code, or a combination of the CRC and the scrambling code instructs the UE to receive the PDSCH information in the uplink time resource; and the signal transmitter is further configured to send the PDSCH information in the uplink time resource. - View Dependent Claims (12, 13, 14, 15)
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16. A downlink control information receiving device, comprising:
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a signal receiver, configured to receive downlink control information (DCI) from a base station device, wherein the DCI instructs user equipment (UE) to receive physical downlink shared channel (PDSCH) information in an uplink time resource, wherein the DCI from the base station device comprises a cyclic redundancy check (CRC), a scrambling code, or both the CRC and the scrambling code, wherein the CRC, the scrambling code, or a combination of the CRC and the scrambling code instructs the UE to receive the PDSCH information in the uplink time resource; and the signal receiver is further configured to receive, according to the DCI, the PDSCH information from the base station device in the uplink time resource. - View Dependent Claims (17, 18, 19, 20)
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Specification