PDCCH Order Polling for Multicast Broadcast Service Interest
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Solution Overview
Problem
Current solutions for polling devices for multicast broadcast service interest indication in MBS systems are inefficient, leading to increased power consumption and separate monitoring occasions for paging and PDCCH orders, which are not beneficial for power saving and simultaneous reception of information.
Innovation Solution
A method where a device receives a PDCCH order addressed by a Paging-Radio Network Temporary Identifier (P-RNTI) and responds with a random access preamble, allowing for simultaneous monitoring of PDCCH orders and reducing power consumption by avoiding separate wake-up occasions for PDCCH order monitoring.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If separate monitoring occasions are used for paging and PDCCH orders, then reliability of information reception is improved, but power consumption increases due to multiple wake-up occasions
Solution Approach 1:
The patent combines paging and PDCCH order monitoring into a single monitoring occasion. The network device sends both paging information and PDCCH order information in the same downlink time interval, allowing the terminal device to wake up once and receive both types of information simultaneously, thereby reducing the number of wake-up occasions and power consumption while maintaining reliable reception of both information types
2Reliability
If separate monitoring occasions are used for paging and PDCCH orders, then complete information reception is ensured, but device complexity increases due to multiple monitoring configurations
Solution Approach 1:
The patent merges paging and PDCCH order monitoring into a unified monitoring framework. The network configures a single monitoring occasion that carries both types of information, eliminating the need for separate monitoring configurations and reducing terminal device complexity while ensuring complete reception of both paging and PDCCH order information
3Measurement precision
If PDCCH order monitoring is performed separately, then accurate polling for MBS interest indication is achieved, but loss of time occurs due to extra wake-up occasions
Solution Approach 1:
The patent combines paging and PDCCH order monitoring in the same time interval, allowing the network to perform accurate polling for MBS interest indication while the terminal wakes up only once. This eliminates the time loss associated with multiple separate wake-up occasions while maintaining the accuracy of MBS interest indication polling through the integrated monitoring approach
Data Source
AI summary
Example embodiments of the present disclosure relate to polling a device for multicast broadcast service interest indication. A first device receives, from a second device, a physical downlink control channel (PDCCH) order addressed by a paging radio network temporary identifier for the first device. The PDCCH order comprises a request for an indication that at least one multicast broadcast service is to be received by the first device. The first device transmits, to the second device, a random access preamble associated with the at least one multicast broadcast service as a response to the request. Through this solution, the first device that monitors the single PDCCH order may have less power consumption.