DATA TRANSMISSION METHOD, BASE STATION, AND USER EQUIPMENT
First Claim
1. A data transmission method, comprising:
- determining, by a base station, a modulation and coding level;
determining, by the base station in a first modulation and transport block size index table, a first transport block size TBS index and a first modulation mode that are corresponding to the modulation and coding level, or determining, in a second modulation and transport block size index table, a second TBS index and a second modulation mode that are corresponding to the modulation and coding level, wherein the second TBS index is not smaller than the first TBS index;
determining, by the base station, a time-frequency resource, and determining, according to the time-frequency resource, a quantity of physical resource block pairs;
selecting, by the base station in a transport block size table, a transport block size TBS corresponding to the quantity of physical resource pairs and corresponding to the determined first TBS index or second TBS index;
sending, by the base station, service data to a user equipment by adopting the selected TBS; and
sending, by the base station, a system scheduling control signal to the user equipment, wherein the system scheduling control signal comprises the modulation and coding level and the time-frequency resource.
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Accused Products
Abstract
Embodiments of the present invention provide a data transmission method, a base station, and a user equipment. The data transmission method includes: determining, by a base station, a modulation and coding level and a time-frequency resource, and determining, in a first or second modulation and transport block size index table, a TBS index and a modulation mode, where a second TBS index is not smaller than a first TBS index; and sending service data and a system scheduling control signal to a user equipment by adopting the selected TBS. In this way, the base station can select a larger TBS to achieve a higher coding rate and increase a system throughput.
24 Citations
28 Claims
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1. A data transmission method, comprising:
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determining, by a base station, a modulation and coding level; determining, by the base station in a first modulation and transport block size index table, a first transport block size TBS index and a first modulation mode that are corresponding to the modulation and coding level, or determining, in a second modulation and transport block size index table, a second TBS index and a second modulation mode that are corresponding to the modulation and coding level, wherein the second TBS index is not smaller than the first TBS index; determining, by the base station, a time-frequency resource, and determining, according to the time-frequency resource, a quantity of physical resource block pairs; selecting, by the base station in a transport block size table, a transport block size TBS corresponding to the quantity of physical resource pairs and corresponding to the determined first TBS index or second TBS index; sending, by the base station, service data to a user equipment by adopting the selected TBS; and sending, by the base station, a system scheduling control signal to the user equipment, wherein the system scheduling control signal comprises the modulation and coding level and the time-frequency resource. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A data transmission method, comprising:
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receiving, by a user equipment, a system scheduling control signal sent by a base station, wherein the system scheduling control signal comprises a modulation and coding level and a time-frequency resource; determining, by the user equipment in a first modulation and transport block size index table, a first transport block size TBS index and a first modulation mode that are corresponding to the modulation and coding level, or determining, in a second modulation and transport block size index table, a second TBS index and a second modulation mode that are corresponding to the modulation and coding level, wherein the second TBS index is not smaller than the first TBS index; determining, by the user equipment, a quantity of physical resource block pairs according to the time-frequency resource; and selecting, by the user equipment in a transport block size table, a transport block size TBS corresponding to the quantity of physical resource pairs and corresponding to the determined first TBS index or second TBS index; and
receiving, by adopting the selected TBS, service data sent by the base station. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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15. A base station, comprising:
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a processor, configured to determine a modulation and coding level;
determine, in a first modulation and transport block size index table, a first transport block size TBS index and a first modulation mode that are corresponding to the modulation and coding level, or determine, in a second modulation and transport block size index table, a second TBS index and a second modulation mode that are corresponding to the modulation and coding level, wherein the second TBS index is not smaller than the first TBS index; and
determine a time-frequency resource and determine, according to the time-frequency resource, a quantity of physical resource block pairs;wherein the processor is further configured to select, in a transport block size table, a transport block size TBS corresponding to the quantity of physical resource block pairs and corresponding to the determined first TBS index or second TBS index; and a sender, configured to send service data to a user equipment by adopting the selected TBS, and send a system scheduling control signal to the user equipment, wherein the system scheduling control signal comprises the modulation and control level and the time-frequency resource. - View Dependent Claims (16, 17, 18, 19, 20, 21)
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22. A user equipment, comprising:
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a receiver, configured to receive a system scheduling control signal sent by a base station, wherein the system scheduling control signal comprises a modulation and coding level and a time frequency resource; and a processor, configured to determine, in a first modulation and transport block size index table, a first transport block size TBS index and a first modulation mode that are corresponding to the modulation and coding level, or determine, in a second modulation and transport block size index table, a second TBS index and a second modulation mode that are corresponding to the modulation and coding level, wherein the second TBS index is not smaller than the first TBS index; and
determine a quantity of physical resource block pairs according to the time-frequency resource;wherein the processor is further configured to select, in a transport block size table, a transport block size TBS corresponding to the quantity of physical resource blocks and corresponding to the determined first TBS index or second TBS index; and the receiver is further configured to receive, by adopting the selected TBS, service data sent by the base station. - View Dependent Claims (23, 24, 25, 26, 27, 28)
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Specification