P-RNTI Segmentation for Network Slice Paging
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Solution Overview
Problem
Terminal devices cannot determine the type of network slice for downlink data, leading to inappropriate cell access and resource selection, resulting in camping on cells that do not meet the required slice services.
Innovation Solution
A paging method where terminal devices receive downlink control information via a first paging-radio network temporary identifier (P-RNTI), allowing them to acquire paging information corresponding to at least one network slice, enabling suitable access and camping on cells that support the required slice services.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If terminal devices use a single P-RNTI to receive paging messages, then the paging mechanism is simple and easy to implement, but the terminal device cannot determine the network slice type for downlink data, leading to inappropriate cell access and resource selection
Solution Approach 1:
The patent segments the single P-RNTI into multiple P-RNTIs, where each P-RNTI corresponds to a specific network slice type. This allows terminal devices to receive paging messages tailored to different slice types (e.g., eMBB, URLLC, MTC) and determine the appropriate network slice type for downlink data, thereby resolving the information loss problem while maintaining manageable complexity through systematic segmentation
Solution Approach 2:
The patent introduces P-RNTI as an intermediary that carries network slice type information. By scrambling the paging message with a specific P-RNTI corresponding to a network slice type, the system enables terminal devices to identify the slice type without directly transmitting the slice type information in the paging message itself, thus resolving the information loss problem while keeping the mechanism relatively simple
2Ease of manufacture
If terminal devices cannot determine network slice type, then the paging message transmission is straightforward, but the terminal device camps on cells that cannot satisfy slice services required by the terminal device
Solution Approach 1:
The patent segments the paging mechanism into multiple P-RNTIs, each associated with a specific network slice type. Terminal devices monitor for paging messages scrambled with P-RNTIs corresponding to their subscribed slice types, enabling them to identify suitable cells that support the required slice services. This segmentation approach maintains transmission simplicity while significantly improving service satisfaction reliability
Solution Approach 2:
The patent implements preliminary action by pre-configuring multiple P-RNTIs in the network, each corresponding to a specific network slice type. Terminal devices are pre-configured with information about which P-RNTIs correspond to their subscribed slice types. When a paging message is transmitted with a specific P-RNTI, the terminal device can immediately determine the slice type and assess whether the current cell supports the required services, thereby ensuring reliable cell selection before actual data transmission begins
Data Source
AI summary
A paging method is provided. The paging method includes that a terminal device receives, via a first paging-radio network temporary identifier (P-RNTI), downlink control information (DCI) transmitted by a network device, and acquires paging information. The first P-RNTI corresponds to at least one network slice.