Wireless Control Resource Grouping for Multi-TRP Data Descrambling
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Solution Overview
Problem
The increasing demand for higher speed and capacity in mobile communication systems, coupled with the need for efficient data transmission and reception, is not adequately addressed by existing technologies, particularly in scenarios involving joint transmission from multiple transmission and reception points (TPs/TRPs) in wireless communication systems.
Innovation Solution
A method for transmitting and receiving data in wireless communication systems that involves configuring control resources into distinct groups, using scrambling identification information for each group, and applying spatial-related information to distinguish and descramble data channels, thereby enabling efficient data transmission and reception even in overlapping scenarios.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If joint transmission from multiple TPs/TRPs is implemented to increase data transmission capacity and speed, then the data transmission rate and system capacity are improved, but the complexity of distinguishing and descrambling data channels increases
Solution Approach 1:
The patent divides control resources into distinct first and second control resource groups, each associated with different TPs/TRPs. This segmentation allows the terminal to separately identify and process control information from different transmission points, reducing the complexity of distinguishing data channels in joint transmission scenarios.
Solution Approach 2:
The patent applies different scrambling identification information to different control resource groups, creating local differentiation. Each control resource group has unique scrambling parameters (such as different n_SCID values), enabling the terminal to locally identify and separately descramble data channels from specific TPs/TRPs without increasing overall system complexity.
2Ease of operation
If control resources are configured without distinct grouping, then the configuration simplicity is maintained, but the terminal cannot unambiguously distinguish data channels from multiple TPs/TRPs
Solution Approach 1:
Control resources are segmented into first and second control resource groups, each uniquely associated with specific TPs/TRPs. This segmentation maintains configuration simplicity through clear grouping while enabling reliable distinction between data channels from different transmission points.
Solution Approach 2:
The patent changes scrambling parameters (scrambling identification information, such as n_SCID) for different control resource groups. This parameter differentiation allows the terminal to reliably identify data channels from multiple TPs/TRPs without complicating the overall configuration structure.
3Loss of energy
If scrambling identification information is not differentiated for different control resource groups, then the processing overhead is reduced, but the terminal experiences operational uncertainty in descrambling data channels
Solution Approach 1:
Different scrambling identification information is applied locally to each control resource group, enabling the terminal to efficiently and unambiguously descramble data channels from specific TPs/TRPs. This local differentiation minimizes processing overhead by providing clear identification rules for each group.
Solution Approach 2:
The patent modifies scrambling parameters (such as different n_SCID values) for different control resource groups. These parameter changes provide operational certainty in descrambling while maintaining efficient processing, as the terminal can directly use the provided scrambling identification information without complex analysis.
Data Source
AI summary
The method for a terminal receiving data may comprise the steps of: carrying out an access procedure; on the basis of the access procedure, receiving configuration information associated with physical control channel control resources, wherein one or more of the control resources included in the configuration information are each configured into a first control resource group or a second control resource group; receiving a first physical control channel and a second physical control channel on the basis of the configuration information; receiving a first physical data channel on the basis of the first control resource group which is associated with the control resource on which the first physical control channel is received; and receiving a second physical data channel on the basis of the second control resource group which is associated with the control resource on which the second physical control channel is received.