Control information sending method, receiving method, and device
First Claim
1. A control information sending method comprising:
- sending, by a network device, system information to a user equipment, wherein the system information is scheduled by an enhanced physical downlink control channel (ePDCCH) scrambled by a system information radio network temporary identifier (SI-RNTI);
receiving, by the network device, random access information sent by the user equipment, wherein configuration information of the random access information is obtained from the system information;
sending, by the network device, random access response information to the user equipment, wherein the random access response information is scheduled by another ePDCCH scrambled by a random access radio network temporary identifier (RA-RNTI);
sending radio resource control (RRC) connection setup information to the user equipment; and
sending, by the network device, RRC dedicated signaling to the user equipment, so as to indicate a position of a first subframe of a first radio frame on a first carrier to the user equipment.
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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.
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Citations
16 Claims
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1. A control information sending method comprising:
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sending, by a network device, system information to a user equipment, wherein the system information is scheduled by an enhanced physical downlink control channel (ePDCCH) scrambled by a system information radio network temporary identifier (SI-RNTI); receiving, by the network device, random access information sent by the user equipment, wherein configuration information of the random access information is obtained from the system information; sending, by the network device, random access response information to the user equipment, wherein the random access response information is scheduled by another ePDCCH scrambled by a random access radio network temporary identifier (RA-RNTI); sending radio resource control (RRC) connection setup information to the user equipment; and sending, by the network device, RRC dedicated signaling to the user equipment, so as to indicate a position of a first subframe of a first radio frame on a first carrier to the user equipment. - View Dependent Claims (2, 3, 4)
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5. A control information receiving method comprising:
receiving, by a user equipment, system information sent by a network device, wherein the system information is scheduled by an enhanced physical downlink control channel (ePDCCH) scrambled by a system information radio network temporary identifier (SI-RNTI); sending, by the user equipment, random access information to the network device, wherein configuration information of the random access information is obtained from the system information; receiving, by the user equipment, random access response information sent by the network device, wherein the random access response information is scheduled by another ePDCCH scrambled by a random access radio network temporary identifier (RA-RNTI); and receiving, by the user equipment, radio resource control (RRC) connection setup information sent by the network device; receiving, by the user equipment, RRC dedicated signaling sent by the network device, wherein the RRC dedicated signaling is used to indicate a position of a first subframe of a first radio frame on a first carrier. - View Dependent Claims (6, 7, 8)
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9. A 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 a control region, the control region is in first n symbols of the first subframe, and n is a natural number less than 5; and a transceiver configured to send control information in the control region of the first subframe of the first radio frame determined by the processor, and send a demodulation reference signal in the first subframe to user equipment, wherein the control information comprises a physical downlink control channel (PDCCH) or a first enhanced physical downlink control channel (ePDCCH);
whereinthe transceiver is further configured to send a second ePDCCH in a second subframe of the first radio frame to the user equipment. - View Dependent Claims (10)
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11. A network device comprising:
- a processor and a transceiver,
wherein the processor is configured to;
control the transceiver to send system information to a user equipment, wherein the system information is scheduled by an enhanced physical downlink control channel (ePDCCH) scrambled by a system information radio network temporary identifier (SI-RNTI);control the transceiver to receive random access information sent by the user equipment, wherein configuration information of the random access information is obtained from the system information; control the transceiver to send random access response information to the user equipment, wherein the random access response information is scheduled by another ePDCCH scrambled by a random access radio network temporary identifier (RA-RNTI); and control the transceiver to send radio resource control (RRC) connection setup information to the user equipment through the transmitter; and the transceiver is configured to send RRC dedicated signaling to the user equipment, so as to indicate a position of a first subframe of a first radio frame on a first carrier to the user equipment. - View Dependent Claims (12)
- a processor and a transceiver,
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13. A user equipment comprising a processor configured to determine a first subframe of a first radio frame on a first carrier, wherein the first subframe comprises a control region, the control region is in first n symbols of the first subframe, and n is a natural number less than 5;
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a transceiver configured to receive control information, sent by a network device, in the control region 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 a physical downlink control channel (PDCCH) or a first enhanced physical downlink control channel (ePDCCH), wherein the transceiver is further configured to receive a second ePDCCH, sent by the network device, in a second subframe of the first radio frame. - View Dependent Claims (14)
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15. A user equipment comprising:
- a processor and a transceiver,
wherein the processor is configured to; receive, through the transceiver, system information sent by a network device, wherein the system information is scheduled by an enhanced physical downlink control channel (ePDCCH) scrambled by a system information radio network temporary identifier (SI-RNTI); control the transceiver to send random access information to the network device, wherein configuration information of the random access information is obtained from the system information; receive, through the transceiver, random access response information sent by the network device, wherein the random access response information is scheduled by another ePDCCH scrambled by a random access radio network temporary identifier (RA-RNTI); and receive, through the transceiver, radio resource control (RRC) connection setup information sent by the network device; and wherein the transceiver is further configured to;
receive RRC dedicated signaling sent by the network device, wherein the RRC dedicated signaling is used to indicate a position of a first subframe of a first radio frame on a first carrier. - View Dependent Claims (16)
- a processor and a transceiver,
Specification