Group Paging PEI Segmentation for Lower Terminal Power Use
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Solution Overview
Problem
Existing wireless communication systems face inefficiencies in group paging, leading to unnecessary power consumption due to terminals with low paging probabilities being awakened, and the need to adapt to terminals with varying capabilities in processing paging early indications (PEIs).
Innovation Solution
Implementing two types of paging early indications (PEIs): one without indicating a paging sub-group and one indicating a paging sub-group, allowing the system to adapt to terminals with different capabilities by using distinct identifiers and configurations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If group paging is implemented to page all terminals in one group by sending one paging message, then signaling overhead is reduced, but terminals with low paging probabilities are unnecessarily awakened leading to increased power consumption
Solution Approach 1:
The patent segments the paging group into multiple sub-groups and introduces a paging sub-group indication field in the PEI. This allows the base station to indicate only the specific sub-group containing the paged terminal, enabling terminals in other sub-groups to remain asleep and avoid unnecessary power consumption while still benefiting from group paging efficiency.
Solution Approach 2:
The patent applies local quality by making the PEI structure adaptive - it includes an optional paging sub-group indication field that is present only when needed. This allows the paging mechanism to be precisely targeted to specific sub-groups rather than broadcasting to all terminals uniformly, reducing unnecessary awakenings.
2Device complexity
If a single type of PEI is used for all terminals, then system simplicity is maintained, but compatibility with terminals having different capabilities is reduced
Solution Approach 1:
The patent designs the PEI structure to be universal by incorporating an optional paging sub-group indication field. This single PEI format can serve multiple functions: it can indicate paging for terminals that support sub-group differentiation, and it can also function as a standard group paging indication for terminals that do not support sub-group differentiation, thus achieving backward compatibility.
Solution Approach 2:
The PEI structure is made dynamic and adaptive rather than static. The presence or absence of the paging sub-group indication field depends on terminal capability, allowing the system to flexibly adapt to different terminal types without requiring multiple separate PEI formats or complex capability negotiation procedures.
Data Source
AI summary
A method for group paging, performed by a base station, includes: sending a paging early indication (PEI), in which the PEI includes at least one of a first type of PEI or a second type of PEI, the first type of PEI is a PEI without indicating a paging sub-group; and the second type of PEI is a PEI indicating a paging sub-group. A method for group paging, performed by a terminal, includes: receiving a paging early indication (PEI); in which the PEI comprises at least one of a first type of PEI or a second type of PEI, the first type of PEI is a PEI without indicating a paging sub-group, and the second type of PEI is a PEI indicating the paging sub-group.