PDCCH Resource Block Numbering for Control Channel Repetition
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Solution Overview
Problem
Current mobile communication networks face challenges in efficiently managing and optimizing communication protocols across diverse wireless devices and base stations, particularly in handling multiple technologies and releases, which affects traffic management and resource allocation.
Innovation Solution
The implementation of advanced NR user plane and control plane protocol stacks, along with bandwidth adaptation and carrier aggregation techniques, enables flexible configuration and optimization of communication protocols to support multiple technologies and releases, improving resource allocation and traffic management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If control channel repetition is implemented across multiple resource blocks, then reliability of control information transmission is improved, but device complexity and resource management difficulty increase
Solution Approach 1:
The control channel repetition is segmented across multiple resource blocks (RBs) within a bandwidth part. Each RB carries a portion of the repeated control information, allowing the system to distribute the transmission load and improve reliability through diversity while maintaining manageable complexity through structured segmentation.
Solution Approach 2:
The system dynamically configures the number of resource blocks and repetition patterns based on channel conditions and traffic requirements. This dynamic adaptation allows the network to optimize reliability when needed while reducing complexity under normal operating conditions, resolving the contradiction between reliability improvement and complexity increase.
2Adaptability or versatility
If bandwidth adaptation and carrier aggregation are used to support multiple technologies, then adaptability and network efficiency are improved, but protocol stack complexity increases
Solution Approach 1:
The protocol stack is designed with universal components that can handle multiple radio access technologies (E-UTRA and NR) through a unified architecture. The user plane and control plane protocols are configured to support both LTE and 5G NR carriers simultaneously, allowing single equipment to perform multiple functions without proportionally increasing complexity.
Solution Approach 2:
The protocol stack employs a nested structure where E-UTRA and NR protocol layers are organized in a hierarchical manner. The legacy LTE protocol stack is nested within the broader 5G NR protocol framework, allowing efficient reuse of existing protocol mechanisms while adding new capabilities, thereby managing complexity through structured nesting rather than parallel independent implementations.
Data Source
AI summary
A base station may transmit, to a wireless device, a physical downlink control channel (PDCCH) comprising a downlink control information (DCI) scheduling a physical downlink shared channel (PDSCH), wherein the PDCCH includes PDCCH candidates from search space sets, associated with control resource sets (coresets), configured for repetition. The base station may transmit, to the wireless device, a transport block via the PDSCH, wherein resource block (RB) numbering of the PDSCH starts from a lowest RB of a coreset with a lowest index among the coresets.