Terminal Resource Allocation for 5G Data Streams
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Solution Overview
Problem
In 5G communication systems, managing two data streams with different reliability requirements leads to resource waste or unmet reliability, as existing methods either allocate excessive resources or fail to meet the higher reliability needs.
Innovation Solution
A communication method where a terminal receives indication information from a network device to determine separate time-frequency resources and modulation and coding schemes (MCS) for each data stream, allowing for flexible resource allocation and meeting diverse reliability requirements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If joint coding is used for two data streams with different reliability requirements, then device complexity is reduced, but resource waste occurs when meeting reliability of both data streams
Solution Approach 1:
The patent segments the coding process by applying different MCS indices to different data streams. Specifically, first MCS index information is used for first data and second MCS index information is used for second data, allowing separate optimization of coding parameters for each data stream's reliability requirements while avoiding the resource waste of uniform joint coding
Solution Approach 2:
The patent applies local quality by tailoring the coding parameters (MCS indices) to the specific reliability requirements of each data stream. The first MCS index information and second MCS index information are selected independently based on the respective reliability needs of the first and second data streams, ensuring optimal resource utilization for each local requirement
2Reliability
If separate MCS indices are used for two data streams with different reliability requirements, then reliability of both data streams is met, but signaling overhead increases
Solution Approach 1:
The patent uses a single downlink control information (DCI) message to convey both first MCS index information and second MCS index information. This multi-functional approach allows the same signaling mechanism to serve multiple data streams with different reliability requirements, reducing overall signaling overhead compared to separate signaling for each stream
Solution Approach 2:
The patent merges the signaling for multiple data streams into a single DCI format. By combining the first MCS index information and second MCS index information in one downlink control information message, the patent reduces the number of separate signaling transmissions required while still providing differentiated coding parameters for each data stream
Data Source
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AI summary
This application provides a communication method and apparatus, and relates to the field of communication technologies. A terminal receives first indication information that is sent by a network device and that indicates a time-frequency resource and an MCS of first data, and determines a first time-frequency resource carrying the first data, a second time-frequency resource carrying second data, and an MCS of the second data. The time-frequency resource includes the first time-frequency resource and the second time-frequency resource. In the method, if there are two pieces of data, the terminal may determine time-frequency resources and MCSs of the two pieces of data, to meet different data requirements and flexibly perform data transmission.