Terminal Resource Allocation via BWP Parameter Transformation
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Solution Overview
Problem
Current wireless communication systems face challenges in efficiently managing communication resources, particularly in scenarios requiring high-speed, low-latency, and reliable connections for diverse applications such as eMBB, URLLC, and mMTC.
Innovation Solution
The development of a base station apparatus and terminal apparatus that employ advanced communication methods, including carrier aggregation, dual connectivity, and flexible bandwidth parts, to optimize resource allocation and improve communication efficiency across various service scenarios.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If resource allocation information uses RIV determined based on the number of RBs of a first BWP, then the resource allocation can be efficiently encoded, but the starting RB index and number of RBs in a second BWP with greater bandwidth cannot be directly represented
Solution Approach 1:
The patent transforms the resource allocation representation by changing parameters: instead of directly using starting RB index and number of RBs in the second BWP, it uses starting RB index and number of RBs from the first BWP (with smaller bandwidth) to determine the RIV. This parameter transformation allows the same RIV encoding mechanism to work across BWPs of different sizes, resolving the contradiction between encoding efficiency and adaptability.
2Adaptability or versatility
If the system supports multiple service scenarios (eMBB, URLLC, mMTC) with different requirements, then the communication system becomes more versatile, but the resource management complexity increases
Solution Approach 1:
The patent implements a universal resource allocation mechanism using RIV that can serve multiple service scenarios (eMBB, URLLC, mMTC) with different requirements. By defining a standardized method for determining RIV based on first BWP parameters that works across second BWPs of various sizes, the system achieves multi-functionality without proportionally increasing resource management complexity.
Data Source
Figure 1A~1B
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AI summary
A terminal apparatus includes: a reception unit configured to receive an MIB that configures a first CORESET, receive an SIB1 that configures a second CORESET, receive first information that configures an initial UL BWP and second information that configures an additional UL BWP, and receive a first DCI format that schedules a PUSCH in a common search space; and a transmission unit configured to specify a set of allocated resource blocks based on a first field included in a first DCI format and transmit a PUSCH in an active UL BWP, the active UL BWP being either the initial UL BWP or the additional UL BWP, the first value indicated by a first field is provided based on the size of the initial UL BWP, a first start position that is a start position of a set of allocated resource blocks, and the number of first resource blocks continuously allocated, and the common search space is used for a random access procedure.