Scheduling method, data transmission method, and apparatus
First Claim
1. A scheduling method, applied to a communications system, the method comprising:
- sending, by a base station, downlink control information (DCI) to a first-type terminal, wherein the DCI comprises scheduling information used to instruct the first-type terminal to send uplink data using a first-mode frame format, whereinthe first-mode frame format comprises at least one uplink subframe, and each uplink subframe comprises at least one first-mode frame format symbol;
wherein the duration of the first-mode frame format symbol is at least four times of the duration of a second-mode frame format symbol, and the second-mode frame format symbol is a single carrier frequency division multiple access (SC-FDMC) symbol in an LTE system;
wherein when the communications system is a frequency division duplex (FDD) system, a time length of the first-mode frame format is N*10 milliseconds, wherein N is 1 or is an even number greater than 0, and the duration of the at least one uplink subframe in the first-mode frame format is M milliseconds, wherein M is an even number greater than 0, and M<
=N*10; and
when the duration of the uplink subframe in the first-mode frame format is 2 milliseconds, and the communications system uses a normal cyclic prefix (CP) in uplink, the uplink subframe comprises seven first-mode frame format symbols, and the duration of the seven first-mode frame format symbols is equal to duration of 28 second-mode frame format symbols and equal to 2 milliseconds.
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Abstract
Embodiments of the present invention provide a scheduling method, a data transmission method, and an apparatus, and relate to the field of communications technologies, so as to resolve a problem that an existing LTE system does not support a new type of terminal. The scheduling method includes: sending, by a base station, downlink control information DCI to a first-type terminal, where the DCI includes scheduling information used to instruct the first-type terminal to send uplink data by using a first-mode frame format; the first-mode frame format includes at least one uplink subframe, and each uplink subframe includes at least one first-mode frame format symbol; and duration of the first-mode frame format symbol is at least four times of duration of a second-mode frame format symbol, and the second-mode frame format symbol is a single carrier frequency division multiple access SC-FDMA symbol in an LTE system.
24 Citations
16 Claims
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1. A scheduling method, applied to a communications system, the method comprising:
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sending, by a base station, downlink control information (DCI) to a first-type terminal, wherein the DCI comprises scheduling information used to instruct the first-type terminal to send uplink data using a first-mode frame format, wherein the first-mode frame format comprises at least one uplink subframe, and each uplink subframe comprises at least one first-mode frame format symbol;
wherein the duration of the first-mode frame format symbol is at least four times of the duration of a second-mode frame format symbol, and the second-mode frame format symbol is a single carrier frequency division multiple access (SC-FDMC) symbol in an LTE system;wherein when the communications system is a frequency division duplex (FDD) system, a time length of the first-mode frame format is N*10 milliseconds, wherein N is 1 or is an even number greater than 0, and the duration of the at least one uplink subframe in the first-mode frame format is M milliseconds, wherein M is an even number greater than 0, and M<
=N*10; andwhen the duration of the uplink subframe in the first-mode frame format is 2 milliseconds, and the communications system uses a normal cyclic prefix (CP) in uplink, the uplink subframe comprises seven first-mode frame format symbols, and the duration of the seven first-mode frame format symbols is equal to duration of 28 second-mode frame format symbols and equal to 2 milliseconds. - View Dependent Claims (2, 3, 4)
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5. A data transmission method, wherein the method comprises:
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sending, by a terminal, uplink control information or random access information to a base station, wherein the terminal is a first-type terminal, and a frame format used to send the uplink control information or the random access information is a first-mode frame format, wherein the first-mode frame format comprises at least one uplink subframe, and each uplink subframe comprises at least one first-mode frame format symbol; and
the duration of the first-mode frame format symbol is at least four times of duration of a second-mode frame format symbol, and the second-mode frame format symbol is a single carrier frequency division multiple access (SC-FDMA) symbol in an LTE system;wherein when the communications system is a frequency division duplex (FDD) system, a time length of the first-mode frame format is N*10 milliseconds, wherein N is 1 or is an even number greater than 0, and the uplink subframe in the first-mode frame format is M milliseconds, wherein M is an even number greater than 0, and M<
=N*10; andwhen the duration of the uplink subframe in the first-mode frame format is 2 milliseconds, and the communications system uses a normal cyclic prefix (CP) in uplink, the uplink subframe comprises seven first-mode frame format symbols, and duration of the seven first-mode frame format symbols is equal to duration of 28 second-mode frame format symbols and equal to 2 milliseconds. - View Dependent Claims (6, 7, 8, 9)
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10. A base station, wherein the base station comprises a processor, a memory, a system bus, and a communications interface, wherein
the memory is configured to store a computer executable instruction, the processor is connected to the memory by using the system bus, and when the base station runs, the processor executes the computer executable instruction stored in the memory, so that the base station executes the following steps: -
sending downlink control information (DCI) to a first-type terminal, wherein the DCI comprises scheduling information used to instruct the first-type terminal to send uplink data using a first-mode frame format, wherein the first-mode frame format comprises at least one uplink subframe, and each uplink subframe comprises at least one first-mode frame format symbol; and
the duration of the first-mode frame format symbol is at least four times of the duration of a second-mode frame format symbol, and the second-mode frame format symbol is a single carrier frequency division multiple access (SC-FDMA) symbol in an LTE system;
wherein when the communications system is a frequency division duplex (FDD) system, a time length of the first-mode frame format is N*10 milliseconds, wherein N is 1 or is an even number greater than 0, and the duration of the at least one uplink subframe in the first-mode frame format is M milliseconds, wherein M is an even number greater than 0, and M<
=N*10; andwhen the duration of the uplink subframe in the first-mode frame format is 2 milliseconds, and the communications system uses a normal cyclic prefix (CP) in uplink, the uplink subframe comprises seven first-mode frame format symbols, and the duration of the seven first-mode frame format symbols is equal to duration of 28 second-mode frame format symbols and equal to 2 milliseconds. - View Dependent Claims (11, 12)
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13. A terminal, wherein the terminal comprises a processor, a memory, a system bus, and a communications interface, wherein
the memory is configured to store a computer executable instruction, the processor is connected to the memory by using the system bus, and when the terminal runs, the processor executes the computer executable instruction stored in the memory, so that the terminal executes the following steps: -
sending uplink control information or random access information to a base station, wherein the terminal is a first-type terminal, and a frame format used to send the uplink control information or the random access information is a first-mode frame format, wherein the first-mode frame format comprises at least one uplink subframe, and each uplink subframe comprises at least one first-mode frame format symbol; and
the duration of the first-mode frame format symbol is at least four times of duration of a second-mode frame format symbol, and the second-mode frame format symbol is a single carrier frequency division multiple access (SC-FDMA) symbol in an LTE system;
wherein when the communications system is a frequency division duplex (FDD) system, a time length of the first-mode frame format is N*10 milliseconds, wherein N is 1 or is an even number greater than 0, and the uplink subframe in the first-mode frame format is M milliseconds, wherein M is an even number greater than 0, and M<
=N*10; andwhen the duration of the uplink subframe in the first-mode frame format is 2 milliseconds, and the communications system uses a normal cyclic prefix (CP) in uplink, the uplink subframe comprises seven first-mode frame format symbols, and duration of the seven first-mode frame format symbols is equal to duration of 28 second-mode frame format symbols and equal to 2 milliseconds. - View Dependent Claims (14, 15, 16)
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Specification