CONTROL INFORMATION SENDING METHOD, RECEIVING METHOD, AND DEVICE
First Claim
1. A control information sending method, comprising:
- determining, by a network device, a first subframe of a first radio frame on a first carrier, wherein the first subframe comprises at least two control regions, each of the control regions is in first n symbols of the first subframe, and n is a natural number less than 5, the number of symbols within the first subframe is 12 or 14;
notifying, by the network device, a user equipment of positions of the control regions, wherein the at least two control regions are frequency-multiplexed;
sending, by the network device, control information in at least one of the control regions of the first subframe of the first radio frame to the user equipment, and sending a demodulation reference signal in the first subframe to the user equipment, wherein the control information comprises at least one physical downlink control channel (PDCCH).
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Accused Products
Abstract
Embodiments of the present invention provide a control information sending method, receiving method, and device. The control information sending method includes: determining a first subframe of a first radio frame on a first carrier, where the first subframe includes a control region; sending control information in the control region of the first subframe of the first radio frame to a user equipment, where the control information includes a PDCCH; and sending an ePDCCH in a second subframe of the first radio frame to the user equipment. According to the embodiments of the present invention, when control information borne on an ePDCCH cannot be sent in a first radio frame, a PDCCH can still be sent to a user equipment through a control region in a first subframe, thereby achieving purposes of performing uplink/downlink scheduling for the user equipment and downlink feedback for uplink data of the user equipment.
11 Citations
20 Claims
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1. A control information sending method, comprising:
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determining, by a network device, a first subframe of a first radio frame on a first carrier, wherein the first subframe comprises at least two control regions, each of the control regions is in first n symbols of the first subframe, and n is a natural number less than 5, the number of symbols within the first subframe is 12 or 14; notifying, by the network device, a user equipment of positions of the control regions, wherein the at least two control regions are frequency-multiplexed; sending, by the network device, control information in at least one of the control regions of the first subframe of the first radio frame to the user equipment, and sending a demodulation reference signal in the first subframe to the user equipment, wherein the control information comprises at least one physical downlink control channel (PDCCH). - View Dependent Claims (2, 3, 4, 5)
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6. A control information receiving method, comprising:
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determining, by a user equipment, a first subframe of a first radio frame on a first carrier, wherein the first subframe comprises at least two control regions, each of the control regions is in first n symbols of the first subframe, and n is a natural number less than 5, the number of symbols within the first subframe is 12 or 14; receiving positions of the control regions that is notified by the network device, wherein the at lease two control regions are frequency-multiplexed; receiving, by the user equipment, control information, sent by a network device, in at least one of the control regions of the first subframe of the first radio frame, and receiving a demodulation reference signal, sent by the network device, in the first subframe, wherein the control information comprises at least one physical downlink control channel (PDCCH). - View Dependent Claims (7, 8, 9, 10)
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11. A network device, comprising:
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a processor, configured to determine a first subframe of a first radio frame on a first carrier, wherein the first subframe comprises at least two control regions, each of the control regions is in first n symbols of the first subframe, and n is a natural number less than 5, the number of symbols within the first subframe is 12 or 14; a transceiver, configured to notify the user equipment of positions of the control regions, wherein the at least two control regions are frequency-multiplexed; and the transceiver if further configured to send control information in at least one of the control regions of the first subframe of the first radio frame determined by the processor, and send a demodulation reference signal in the first subframe to the user equipment, wherein the control information comprises at least one physical downlink control channel (PDCCH). - View Dependent Claims (12, 13, 14, 15)
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16. A user equipment, comprising:
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a processor, configured to determine a first subframe of a first radio frame on a first carrier, wherein the first subframe comprises at least two control regions, each of the control regions is in first n symbols of the first subframe, and n is a natural number less than 5, the number of symbols within the first subframe is 12 or 14; a transceiver, configured to receive positions of the control regions that is notified by the network device, wherein the at least two control regions are frequency-multiplexed; and the transceiver is further configured to receive control information, sent by a network device, in at least one of the control regions of the first subframe determined by the processor, and receive a demodulation reference signal, sent by the network device, in the first subframe, wherein the control information comprises at least one physical downlink control channel (PDCCH). - View Dependent Claims (17, 18, 19, 20)
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Specification