Multi-Beam System Information Decoding for 5G Terminals
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Solution Overview
Problem
In 5G wireless communication systems, there is a challenge in achieving a high decoding success rate for system information, which is crucial for maintaining communication, as failures can lead to service coverage issues due to the complexity of acquiring signals transmitted via multiple beams.
Innovation Solution
A terminal device with a processor and transceiver receives signals from a base station using multiple beams and decodes them in combination to acquire system information, thereby increasing the success rate by managing and combining channel qualities for effective beam-based decoding.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If system information is transmitted via multiple beams, then coverage area is improved, but decoding complexity increases
Solution Approach 1:
The patent segments the system information transmission into multiple beams, where each beam carries a portion of the system information or redundant copies. The terminal device receives and decodes information from individual beams separately, then combines results to achieve complete system information acquisition, thereby managing decoding complexity while expanding coverage.
Solution Approach 2:
The patent combines signals or information from multiple beams at the terminal device side. By merging the received signals or decoding results from different beams, the terminal can successfully acquire system information even if some individual beams fail, thus improving coverage while distributing decoding complexity across multiple reception paths.
2Reliability
If multiple beams are used for signal transmission, then reliability is improved, but signal processing complexity increases
Solution Approach 1:
The patent implements preliminary actions by having the base station prepare and transmit multiple beams with system information in advance. The terminal device is pre-configured to monitor and receive these beams, performing initial signal processing and selection before full decoding is required, thereby reducing the complexity of the main decoding operation while maintaining high reliability.
Solution Approach 2:
The patent introduces an intermediary mechanism where the base station transmits reference signals or pilot signals along with the actual system information beams. These intermediary signals help the terminal device estimate channel conditions, select optimal beams for decoding, and combine multiple received signals, thereby improving reliability while managing processing complexity through simplified intermediate steps.
3Reliability
If signals are combined from multiple beams, then decoding success rate is improved, but processing time increases
Solution Approach 1:
The patent employs periodic transmission of system information beams, where the base station transmits the same or redundant system information through multiple beams at regular intervals. The terminal device can accumulate received signals over these periodic transmissions and perform combining operations, thereby improving decoding success rate while distributing the processing time across multiple periodic opportunities rather than requiring all processing in a single time slot.
Data Source
AI summary
The present disclosure relates to a pre-5th-Generation (5G) or 5G communication system to be provided for supporting higher data rates Beyond 4th-Generation (4G) communication system such as Long Term Evolution (LTE). According to various embodiments, a device of a terminal, in a wireless communication system, can include at least one processor and at least one transceiver operatively coupled to the at least one processor. The at least one transceiver configured to receive, from a base station, a first signal transmitted using a first beam of the base station and including system information and receive, from the base station, a second signal transmitted using a second beam of the base station and including the system information, and the at least one processor is configured to decode the second signal in combination with the first signal, thereby enabling the system information to be acquired.