Paging Group ID Allocation for Wireless Paging Efficiency
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Solution Overview
Problem
Current wireless communication systems face challenges in efficiently and easily managing paging information sent to user terminals, particularly in newer generation systems, due to their complexity.
Innovation Solution
The method involves time-hashing user equipment to a specific subframe for a paging occasion, associating a paging group ID with the physical downlink control channel (PDCCH), allocating resources on the PDCCH for the physical downlink shared channel (PDSCH), and transmitting paging messages during the paging occasion, with optional CRC masking and paging indicator transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional paging mechanisms are used in newer generation wireless systems, then paging information can be transmitted to user terminals, but the complexity of managing and decoding paging information increases significantly
Solution Approach 1:
The patent segments paging information management by introducing paging groups and associating each group with a unique paging group ID. User equipment is divided into different paging groups, and each group has its own dedicated PDCCH resources. This segmentation reduces the complexity for individual UEs as they only need to monitor their assigned paging group's control channel rather than processing all paging information system-wide.
Solution Approach 2:
The patent inverts the traditional approach by having the network associate paging group IDs with PDCCH resources rather than having UEs directly monitor general paging channels. The network side performs the association and allocation, then UEs simply follow the assigned relationships. This inversion shifts the complexity management to the network side, simplifying UE operations.
2Productivity
If paging information is transmitted to all user equipment, then all UEs can receive paging messages, but the decoding complexity and resource usage for each UE increases
Solution Approach 1:
By dividing UEs into paging groups and assigning each group a unique ID that is associated with specific PDCCH resources, the patent enables UEs to segment their monitoring activities. Each UE only needs to decode PDCCH resources associated with its assigned paging group ID, significantly reducing the number of decodings required compared to monitoring all paging channels system-wide.
Solution Approach 2:
The patent applies local quality by providing different PDCCH resource allocations and paging group ID associations tailored to specific UE groups. Each paging group has its own dedicated control channel resources, allowing UEs to optimize their reception by focusing only on locally relevant resources rather than processing all system paging information uniformly.
3Productivity
If dynamic resource allocation is implemented for paging messages, then resource utilization improves, but the complexity of resource management increases
Solution Approach 1:
The patent implements preliminary action by having the network pre-associate paging group IDs with specific PDCCH resources and pre-allocate PDSCH resources for paging messages. This preliminary setup allows for dynamic resource allocation while simplifying UE operations, as UEs can efficiently utilize pre-configured associations rather than performing complex real-time resource management decisions.
Solution Approach 2:
The paging group ID serves as an intermediary that links UEs to their assigned PDCCH resources and PDSCH resources. This intermediary mechanism simplifies resource management by providing a clear association path: UE → paging group ID → PDCCH resources → PDSCH resources. The intermediary abstracts the complexity of direct resource management while enabling efficient dynamic allocation.
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AI summary
Systems and methods for utilizing paging group IDs and paging indicators are disclosed for PDCCH and PDSCH transmissions to mobile terminals in a mobile communication system. By use of the paging group IDs and paging indicators, various groups of mobile terminals, including subsets of those groups can be paged with reduced decoding requirements. Nesting of the grouping is exploited and packing of the PDCCH frame to accomplish efficient use is described.