Wireless Resource Allocation Using Non-Contiguous RBs in Limited Bandwidth
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing wireless communication systems face challenges in efficiently utilizing limited bandwidth for enhanced mobile broadband and massive machine type communications, particularly in managing random access procedures and resource allocation to support diverse communication needs.
Innovation Solution
The solution involves utilizing non-contiguous resource blocks in the frequency domain for resource allocation during random access procedures, leveraging spare bits in the frequency domain resource allocation field and channel state information request fields within uplink grants to transmit additional information, and employing message-2 and message-3 transmissions to enhance communication efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If non-contiguous resource blocks are used for resource allocation, then communication capacity is improved, but device complexity increases
Solution Approach 1:
The frequency domain is segmented into multiple resource blocks that can be allocated non-contiguously. The patent divides the available bandwidth into discrete resource units that can be independently assigned to different users, enabling flexible resource distribution that improves communication capacity while managing complexity through structured segmentation.
Solution Approach 2:
The patent introduces a bitmap field in the downlink control information that adds a new dimension to resource allocation representation. Instead of traditional contiguous allocation methods, the bitmap approach encodes non-contiguous resource block selections in a compact format, enabling complex allocation patterns while simplifying the control signal structure.
2Productivity
If spare bits in frequency domain resource allocation field are used to transmit additional information, then information transmission efficiency is improved, but measurement precision requirements increase
Solution Approach 1:
The patent makes the frequency domain resource allocation field multi-functional by using spare bits from this field to carry additional control information. The same bit field serves dual purposes: indicating resource block allocation and transmitting supplementary control data, thereby improving overall information transmission efficiency without requiring separate dedicated fields.
Solution Approach 2:
The patent merges the resource allocation indication function with the additional control information transmission function by combining them into a single integrated field structure. The spare bits from the frequency domain resource allocation field are merged with other control information, creating a compact unified structure that reduces overhead and improves transmission efficiency.
3Adaptability or versatility
If channel state information request field bits are used to transmit additional information, then adaptability is improved, but device complexity increases
Solution Approach 1:
The patent introduces dynamic reusability of the channel state information request field bits. These bits are not fixed to a single function but can be dynamically configured to serve different purposes: originally for CSI requests, then reused for additional control information transmission. This dynamic adaptability allows the system to adjust to different communication scenarios while managing protocol complexity through flexible bit field utilization.
Data Source
AI summary
The present disclosure relates to performing communication by using a limited bandwidth in a wireless communication system, and a method for operating a terminal may include performing a random access procedure, receiving information related to resource allocation for downlink communication, and receiving a downlink signal based on the resource allocation. The resource allocation is a plurality of non-contiguous resources in frequency domain, and a sum of resource blocks (RBs) of the plurality of resources may be equal to or smaller than a maximum number of RBs of the terminal.