Joint-Channel PUSCH Configuration for 5G Uplink Reliability
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Solution Overview
Problem
The challenge in 5G communication systems is to extend cell coverage in the superhigh frequency (mmWave) band for uplink transmissions, particularly for services like mMTC that require broader coverage and low-cost, long battery life terminals, while also supporting low latency and high reliability services like URLLC.
Innovation Solution
The method involves configuring transport block processing over multi-slot (TBoMS) or joint channel configurations, allocating physical uplink shared channel (PUSCH) resources, and performing power and phase adjustments based on configuration information, along with repetitive transmissions to enhance coverage and reliability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If repetitive transmission is performed to extend cell coverage in mmWave band, then coverage area is improved, but transmission time and latency increase
Solution Approach 1:
The base station performs channel estimation and decoding in advance by combining signals from multiple slots (TBoMS). The channel state information is prepared beforehand, allowing the terminal to transmit with optimized parameters without waiting for real-time channel assessment, thus reducing latency while maintaining extended coverage through repetitive transmission.
Solution Approach 2:
The patent implements continuous channel estimation and signal combining across multiple slots. By maintaining continuous transmission and continuously accumulating channel state information across slots, the system achieves both extended coverage through repetition and reduced effective latency through continuous processing and early decoding opportunities.
2Reliability
If transport block processing over multi-slot is configured, then transmission reliability is improved, but system complexity increases
Solution Approach 1:
The base station performs multiple functions simultaneously: channel estimation, signal combining, and decoding are integrated into a unified TBoMS processing framework. This multi-functional approach improves reliability through diverse processing techniques while reducing overall system complexity by consolidating operations into a single coordinated mechanism rather than separate independent systems.
Solution Approach 2:
The patent merges channel estimation from multiple slots into a unified processing operation. By combining signals and channel state information across slots into a single decoding operation, the system achieves improved reliability through diversified signal processing while reducing complexity by consolidating multiple operations into one integrated process.
3Productivity
If joint channel configuration is used, then resource allocation efficiency is improved, but adaptability to different service requirements decreases
Solution Approach 1:
The system dynamically adapts joint channel configuration based on service type requirements. For mMTC services, the configuration optimizes for coverage and power efficiency, while for URLLC services, it prioritizes low latency and high reliability. This dynamic adjustment allows the same joint channel mechanism to serve multiple service types efficiently, maintaining both resource efficiency and service adaptability.
Data Source
AI summary
The disclosure relates to a 5th generation (5G) or pre-5G communication system for supporting a higher data transmission rate than a 4th generation (4G) communication system such as long term evolution (LTE). An operating method of a terminal in a wireless communication system is provided. The operating method includes receiving, from a base station, first configuration information regarding transport block (TB) processing over multi-slot (TBoMS) or a joint channel configuration, allocating a physical uplink shared channel (PUSCH) transmission resource based on the first configuration information, receiving, from the base station, second configuration information regarding a cancellation indication (CI) or a dynamic slot-format indication (SFI), determining whether to transmit the PUSCH transmission resource, based on the second configuration information, configuring a transmit power and a phase regarding TBoMS PUSCH transmission, PUSCH transmission, or PUSCH repetitive transmission, based on the first configuration information, and performing at least one of the TBoMS PUSCH transmission, the PUSCH transmission, or the PUSCH repetitive transmission, based on the PUSCH transmission resource.