Paging Message Transmission in Wireless Communication Systems
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Solution Overview
Problem
In wireless communication systems with multiple frequency bands, providing a UE with a desired service quality while efficiently transmitting paging messages over a dedicated frequency band is challenging, especially when UEs need to receive both MBMS and unicast services simultaneously.
Innovation Solution
A method where the Base Station transmits paging messages to UEs with identifier and location information, allowing UEs to respond appropriately, and includes suspending data transmission during a paging gap to transmit the message, enabling UEs to switch between dedicated and non-dedicated frequency bands to receive paging messages efficiently.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the Base Station transmits paging messages over a dedicated frequency band for MBMS services, then the service quality for MBMS is improved, but the ability to efficiently notify UEs of unicast service data deteriorates
Solution Approach 1:
The patent segments the frequency bands into dedicated MBMS frequency bands and non-dedicated frequency bands. Paging messages for unicast services are transmitted on non-dedicated frequency bands, while MBMS services continue on dedicated bands. This segmentation allows simultaneous optimization of both MBMS service quality and unicast paging delivery without mutual interference.
2Reliability
If the UE continuously monitors the dedicated frequency band for paging messages, then the paging message reception is improved, but the power consumption increases
Solution Approach 1:
The patent implements periodic paging message transmission on non-dedicated frequency bands with defined paging cycles. UEs only need to monitor these specific periodic intervals rather than continuously monitoring the dedicated MBMS frequency band, significantly reducing power consumption while maintaining reliable paging message reception.
3Productivity
If the UE switches between dedicated and non-dedicated frequency bands to receive paging messages, then the paging efficiency is improved, but the device complexity increases
Solution Approach 1:
The patent pre-configures UEs with information about non-dedicated frequency bands and paging occasions before paging messages are sent. This preliminary configuration includes frequency band parameters, timing information, and resource allocation details, allowing UEs to efficiently switch to the appropriate frequency band without complex real-time decision-making, thereby reducing device complexity while maintaining high paging efficiency.
Data Source
AI summary
A method to transmit and receive a paging message in a wireless communication system is provided. In a method to transmit a paging message, a Base Station transmits a paging message including identifier and location information of a UE to be paged to the UE and receives a paging response message from the UE in response to the paging message. In a method to receive a paging message, the UE switches from a dedicated frequency band for a specific service to a non-dedicated frequency band during a predetermined period or paging gap and checks whether or not a paging message has been received from the Base Station over the non-dedicated frequency band.