UE Broadcast Signal Combining for Shaded Area Coverage
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
In communication systems, particularly in 5G and IoT environments, User Equipment (UE) in shaded areas, such as basements, face challenges in receiving broadcast information due to insufficient repetition of initial signals from the Base Station (BS), leading to poor communication coverage.
Innovation Solution
A method and apparatus for a UE to improve communication coverage by repeatedly identifying and combining broadcasting channel signals at predetermined intervals, allowing for decoding of broadcast information, which includes extracting and combining Physical Broadcast Channel (PBCH) signals over a preset time interval.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the UE repeatedly receives broadcast information in shaded areas, then communication coverage is improved, but power consumption increases
Solution Approach 1:
The UE performs preliminary actions by storing received broadcast information in a buffer before attempting to decode it. This allows the UE to accumulate multiple copies of broadcast information over time without immediately processing them, reducing the need for continuous high-power reception and processing operations while still achieving reliable reception in shaded areas
Solution Approach 2:
The UE employs periodic reception and decoding attempts of broadcast information rather than continuous operation. By periodically checking for and combining stored broadcast information, the system achieves reliable communication coverage while allowing the receiver to enter low-power states between periodic operations, thus reducing overall power consumption
2Reliability
If the UE repeatedly receives broadcast information in shaded areas, then communication coverage is improved, but access time increases
Solution Approach 1:
The UE performs preliminary reception and storage of broadcast information in advance, building up a buffer of received signals before decoding attempts. This preliminary accumulation phase allows subsequent decoding operations to be faster and more successful, reducing the overall access time while maintaining improved coverage in shaded areas
Solution Approach 2:
The system maintains continuous useful action by continuously receiving and storing broadcast information in the buffer, even when full decoding is not yet achieved. This continuous accumulation ensures that when decoding conditions are met, the process can complete quickly without interruption, thus improving access time while maintaining enhanced coverage
3Measurement precision
If the UE extracts and combines PBCH signals over preset time interval, then decoding accuracy is improved, but device complexity increases
Solution Approach 1:
The UE segments the broadcast information reception process into distinct phases: extraction of PBCH signals at predetermined intervals, storage in buffer, and subsequent combining/decoding operations. This segmentation allows the complex task of improving decoding accuracy to be broken into manageable steps, reducing the instantaneous processing complexity while maintaining overall decoding precision
Solution Approach 2:
The buffer acts as an intermediary between signal extraction and decoding operations. By introducing this intermediate storage stage, the system can accumulate multiple PBCH signal copies over time and combine them with optimized processing, improving decoding accuracy without requiring all processing operations to occur simultaneously, thus reducing device complexity
Data Source
AI summary
Disclosed are a communication technique for merging, with IoT technology, a 5G communication system for supporting a data transmission rate higher than that of a 4G system, and a system therefor. The disclosed communication technique and system therefor can be applied to intelligent services (for example, smart home, smart building, smart city, smart car or connected car, health care, digital education, retail, security and safety related services, and the like) on the basis of 5G communication technology and IoT-related technology. The present disclosure relates to a method and a device for receiving, by a terminal, broadcast information in a communication system. According to an embodiment of the present disclosure, the method by which a terminal receives broadcast information in a communication system comprises the steps of: receiving a plurality of radio frames from a base station; extracting at least one broadcasting channel signal from the plurality of radio frames in every set period; combining, for a preset time slot, the at least one broadcasting channel signal extracted in every set period; and acquiring broadcast information by decoding the combined broadcasting channel signal.