Physical downlink control channel transmission method, base station device, and user equipment
First Claim
1. A method for sending a physical downlink control channel, the method comprising:
- sending a random access response message on a predefined resource, wherein the random access response message carries configuration information of a first physical downlink control channel for indicating manners of sending and receiving the first physical downlink control channel; and
sending control information on the first physical downlink control channel according to the configuration information of the first physical downlink control channel;
wherein sending the random access response message comprises;
sending the random access response message, and adding indication information to the random access response message, wherein the indication information comprises scheduling information of a random access contention resolution message for indicating manners of sending and receiving the random access contention resolution message;
sending the random access contention resolution message, wherein the random access contention resolution message carries the configuration information of the first physical downlink control channel, orsending the random access response message, and adding indication information to the random access response message, wherein the indication information comprises configuration information of a third physical downlink control channel for indicating manners of sending and receiving the third physical downlink control channel, the third physical downlink control channel for transmitting scheduling information of a random access contention resolution message for indicating manners of sending and receiving the random access contention resolution message, and the configuration information of the third physical downlink control channel comprises configuration information of a common search space in the third physical downlink control channel, and/or configuration information of a user equipment specific search space in a physical downlink control resource of the third physical downlink control channel; and
sending the random access contention resolution message, wherein the random access contention resolution message carries the configuration information of the first physical downlink control channel.
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Abstract
Embodiments of the present disclosure disclose a physical downlink control channel sending method. The method includes: sending configuration information of a first physical downlink control channel on a predefined resource, where the configuration information of the first physical downlink control channel is used to indicate manners of sending and receiving the first physical downlink control channel; and sending the first physical downlink control channel according to the configuration information of the first physical downlink control channel. Correspondingly, the embodiments of the present disclosure further disclose a physical downlink control channel receiving method, a base station device, and user equipment. By using the present disclosure, a physical downlink control channel, especially, an EPDCCH channel, can be transmitted, to resolve a problem of physical downlink control channel transmission caused by the fact that narrowband user equipment cannot receive a broadband PDCCH channel.
15 Citations
12 Claims
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1. A method for sending a physical downlink control channel, the method comprising:
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sending a random access response message on a predefined resource, wherein the random access response message carries configuration information of a first physical downlink control channel for indicating manners of sending and receiving the first physical downlink control channel; and sending control information on the first physical downlink control channel according to the configuration information of the first physical downlink control channel; wherein sending the random access response message comprises; sending the random access response message, and adding indication information to the random access response message, wherein the indication information comprises scheduling information of a random access contention resolution message for indicating manners of sending and receiving the random access contention resolution message; sending the random access contention resolution message, wherein the random access contention resolution message carries the configuration information of the first physical downlink control channel, or sending the random access response message, and adding indication information to the random access response message, wherein the indication information comprises configuration information of a third physical downlink control channel for indicating manners of sending and receiving the third physical downlink control channel, the third physical downlink control channel for transmitting scheduling information of a random access contention resolution message for indicating manners of sending and receiving the random access contention resolution message, and the configuration information of the third physical downlink control channel comprises configuration information of a common search space in the third physical downlink control channel, and/or configuration information of a user equipment specific search space in a physical downlink control resource of the third physical downlink control channel; and sending the random access contention resolution message, wherein the random access contention resolution message carries the configuration information of the first physical downlink control channel. - View Dependent Claims (2, 3)
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4. A method for receiving a physical downlink control channel, the method comprising:
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receiving a random access response message on a predefined resource; obtaining configuration information of a first physical downlink control channel carried in the random access response message for indicating manners of sending and receiving the first physical downlink control channel; and receiving control information on the first physical downlink control channel according to the configuration information of the first physical downlink control channel; wherein obtaining the configuration information of the first physical downlink control channel carried in the random access response message comprises; receiving the random access response message, and obtaining indication information carried in the random access response message, the indication information comprising scheduling information of a random access contention resolution message for indicating manners of sending and receiving the random access contention resolution message; receiving the random access contention resolution message according to the scheduling information of the random access contention resolution message, and obtaining the configuration information of the first physical downlink control channel carried in the random access contention resolution message, or receiving the random access response message, and obtaining indication information carried in the random access response message, wherein the indication information comprises configuration information of a third physical downlink control channel for indicating manners of sending and receiving the third physical downlink control channel, the third physical downlink control channel for transmitting scheduling information of a random access contention resolution message for indicating manners of sending and receiving the random access contention resolution message, and the configuration information of the third physical downlink control channel comprises configuration information of a common search space in the third physical downlink control channel, and/or configuration information of a user equipment specific search space in a physical downlink control resource of the third physical downlink control channel; and receiving the random access contention resolution message according to the scheduling information of the random access contention resolution message, and obtaining the configuration information of the first physical downlink control channel carried in the random access contention resolution message. - View Dependent Claims (5, 6)
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7. A base station device, comprising:
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a processor; and memory coupled to the processor and storing programming instructions that, when executed by the processor, cause the base station to; send a random access response message on a predefined resource, wherein the random access response message carries configuration information of a first physical downlink control channel for indicating manners of sending and receiving the first physical downlink control channel; send control information on the first physical downlink control channel according to the configuration information of the first physical downlink control channel; send the random access response message, and add indication information to the random access response message, wherein the indication information comprises scheduling information of a random access contention resolution message for indicating manners of sending and receiving the random access contention resolution message; send the random access contention resolution message, wherein the random access contention resolution message carries the configuration information of the first physical downlink control channel, or send the random access response message, and add indication information to the random access response message, wherein the indication information comprises configuration information of a third physical downlink control channel for indicating manners of sending and receiving the third physical downlink control channel, the third physical downlink control channel for transmitting scheduling information of a random access contention resolution message, the scheduling information of the random access contention resolution message for indicating manners of sending and receiving the random access contention resolution message, and the configuration information of the third physical downlink control channel comprises configuration information of a common search space in the third physical downlink control channel, and/or configuration information of a user equipment specific search space in a physical downlink control resource of the third physical downlink control channel; and send the random access contention resolution message, wherein the random access contention resolution message carries the configuration information of the first physical downlink control channel. - View Dependent Claims (8, 9)
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10. User equipment, comprising:
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a processor; and memory coupled to the processor and storing programming instructions that, when executed by the processor, cause the user equipment to; receive a random access response message on a predefined resource; obtain configuration information of a first physical downlink control channel carried in the random access response message for indicating manners of sending and receiving the first physical downlink control channel; and receive control information on the first physical downlink control channel according to the configuration information of the first physical downlink control channel; receive the random access response message, and obtain indication information carried in the random access response message, wherein the indication information comprises scheduling information of a random access contention resolution message for indicating manners of sending and receiving the random access contention resolution message; receive the random access contention resolution message according to the scheduling information of the random access contention resolution message, and obtain the configuration information of the first physical downlink control channel carried in the random access contention resolution message, or receive the random access response message, and obtain indication information carried in the random access response message, wherein the indication information comprises configuration information of a third physical downlink control channel for indicating manners of sending and receiving the third physical downlink control channel, the third physical downlink control channel for transmitting scheduling information of a random access contention resolution message, the scheduling information of the random access contention resolution message for indicating manners of sending and receiving the random access contention resolution message, and the configuration information of the third physical downlink control channel comprises configuration information of a common search space in the third physical downlink control channel, and/or configuration information of a user equipment specific search space in a physical downlink control resource of the third physical downlink control channel; and receive the random access contention resolution message according to the scheduling information of the random access contention resolution message, and obtain the configuration information of the first physical downlink control channel carried in the random access contention resolution message. - View Dependent Claims (11, 12)
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Specification