PEI DCI Reserved Bit Configuration for Lower Blind Detection Overhead
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Solution Overview
Problem
Existing wireless communication systems face inefficiencies in wireless signal transmission and reception procedures, particularly in managing downlink control information (DCI) formats for paging early indications (PEI), which can lead to increased overhead and power consumption due to blind detection of unsupported functions in user equipment (UEs).
Innovation Solution
The size of reserved bits in the DCI format for PEI is made configurable, ensuring forward compatibility for UEs with new functions while maintaining power savings by minimizing unnecessary blind detection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the size of reserved bits in DCI format for PEI is fixed to support future UEs with new functions, then forward compatibility is improved, but blind detection overhead increases for existing UEs that do not support the new functions
Solution Approach 1:
The patent applies dynamics by making the reserved bit size configurable rather than fixed. The base station can dynamically adjust the number of reserved bits in the DCI format for PEI based on whether future functions are activated. When new functions are not yet deployed, the reserved bit size is reduced to minimize blind detection overhead for existing UEs. When future functions are activated, the reserved bit size is increased to accommodate the new functionality, thereby achieving forward compatibility without permanently increasing overhead for all UEs.
Solution Approach 2:
The patent implements parameter changes by allowing the size of reserved bits to be configured according to system conditions and UE capabilities. The number of reserved bits is not a fixed parameter but can be adjusted based on whether future PEI functions are supported. This configurable parameter approach enables the system to optimize the balance between forward compatibility and blind detection efficiency for different deployment scenarios and UE types.
2Adaptability or versatility
If the DCI format includes reserved bits for future functions, then adaptability to future UEs is improved, but power consumption increases due to increased blind detection
Solution Approach 1:
The patent applies dynamics by making the reserved bit size configurable rather than fixed. The base station can dynamically adjust the number of reserved bits in the DCI format for PEI based on whether future functions are activated. When new functions are not yet deployed, the reserved bit size is reduced to minimize blind detection overhead for existing UEs. When future functions are activated, the reserved bit size is increased to accommodate the new functionality, thereby achieving forward compatibility without permanently increasing overhead for all UEs.
Solution Approach 2:
The patent implements parameter changes by allowing the size of reserved bits to be configured according to system conditions and UE capabilities. The number of reserved bits is not a fixed parameter but can be adjusted based on whether future PEI functions are supported. This configurable parameter approach enables the system to optimize the balance between forward compatibility and blind detection efficiency for different deployment scenarios and UE types.
Data Source
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AI summary
A terminal disclosed herein can: receive information for paging early indication (PEI) DCI payload size 'N' through layer signaling; determine the size 'M' of total information bits of PEI DCI, the total information bits including first information bits related to paging and second information bits related to the availability of a tracking reference signal (TRS) in an RRC pause/inactive state; and determine 'N'-'M' reserved bits.