TRP-Specific Scrambling Code Sequence Generation for 5G NR
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Solution Overview
Problem
In 5G NR technology, the existing scrambling code sequence generation method fails to randomize interference between transmission reception points (TRPs) effectively, leading to poor system performance as user equipment cannot distinguish data from different TRPs, resulting in non-randomized interference.
Innovation Solution
The scrambling code sequence is determined based on unique configuration parameters for each TRP, ensuring that different TRPs generate distinct scrambling code sequences, thereby randomizing interference and improving system performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the same initial scrambling code value is used by all TRPs in a 5G NR cell, then the scrambling process is simplified and consistent, but the interference between TRPs cannot be randomized, leading to poor system performance
Solution Approach 1:
Each TRP is assigned a unique identification code that is locally specific to that TRP. This identification code is incorporated into the initial scrambling code value calculation, making the scrambling code locally unique to each TRP while maintaining the overall scrambling structure. This resolves the contradiction by allowing simplified consistent processing while achieving TRP-specific interference randomization.
Solution Approach 2:
The initial scrambling code value is modified by incorporating the TRP-specific identification code as an additional parameter. This parameter change ensures that each TRP generates a distinct scrambling code sequence from the same base formula, enabling interference randomization without increasing overall system complexity.
2Reliability
If TRP-specific configuration parameters are used to generate scrambling code sequences, then interference randomization is achieved and system performance improves, but the complexity of generating and managing distinct scrambling codes increases
Solution Approach 1:
The solution modifies the existing scrambling code generation formula by adding the TRP identification code as an additional parameter. This approach achieves TRP-specific scrambling sequences using the same base algorithm, avoiding the need for completely separate generation processes and minimizing the increase in complexity while improving system performance.
Data Source
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AI summary
This application discloses a scrambling code sequence generation method and apparatus, and belongs to the field of communication technologies. The method includes: determining a scrambling code sequence based on a configuration parameter of a transmission reception point TRP, where different TRPs correspond to different configuration parameters; and scrambling or descrambling data by using the scrambling code sequence. This application is used for data transmission, resolves a problem in a related technology that system performance is relatively poor because user equipment cannot better obtain, from received data, data sent by a TRP, and improves system performance.