DCI Encoding for SRI and TPMI/TRI Information
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Solution Overview
Problem
There is no method for encoding SRI and TPMI/TRI information in existing protocols and communication systems, which hinders efficient uplink data transmission in wireless communication systems.
Innovation Solution
A method for encoding SRI and TPMI/TRI information is introduced, where the network device determines the number of candidate values for the preset indication field in the DCI, calculates the field length, and encodes the information to generate DCI, allowing for separate or joint encoding of SRI and TPMI/TRI information.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If no encoding method is used for SRI and TPMI/TRI information, then the system maintains simplicity in protocol design, but uplink data transmission efficiency is hindered due to lack of proper information encoding
Solution Approach 1:
The patent segments the Downlink Control Information (DCI) into multiple fields, including a first indication field for SRI information and a second indication field for TPMI/TRI information. This segmentation allows independent encoding and processing of different control parameters, improving uplink data transmission efficiency while maintaining manageable protocol complexity through structured organization.
Solution Approach 2:
The patent introduces new parameters (SRI, TPMI, TRI) and their corresponding indication fields in the DCI structure. By changing the parameter set to include these specific encoding elements, the system enables efficient uplink data transmission without fundamentally altering the overall DCI framework, thus balancing productivity improvement with controlled complexity increase.
2Measurement precision
If separate encoding fields are introduced for SRI and TPMI/TRI information, then encoding precision is improved, but the DCI message length increases
Solution Approach 1:
The patent implements partial encoding by introducing specific indication fields only where needed in the DCI structure. Rather than encoding all possible information uniformly, the system applies encoding precision selectively to SRI and TPMI/TRI parameters, achieving necessary encoding precision while minimizing the overall increase in DCI message length through targeted rather than comprehensive encoding.
Data Source
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AI summary
Embodiments of the present application provide a method and apparatus for transmitting downlink control information (DCI), for solving the technical problem that neither the existing protocol nor the communication system has a method for encoding sounding reference signal resource indication (SRI) and pre-coding matrix indication (TPMI) or rank indication (TRI) information. The method comprises: a network device determines the number of candidate values of preset indication information borne by a preset indication field in the downlink control information (DCI), the preset indication information comprising one of or a combination of two of the sounding reference signal resource indication (SRI) and pre-coding matrix indication (TPMI) or rank indication (TRI) information; the network device determines the length of the preset indication field according to the number of candidate values of the preset indication information, and encodes the preset indication information according to the length to generate the DCI; and the network device sends the DCI to the UE.