Paging Indication Transmission via Segmented PBCH and PDCCH Payloads
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Solution Overview
Problem
In 5G communications systems using high carrier frequencies above 6 GHz, the narrow coverage area of beamforming technology requires frequent beam scanning for paging information transmission, leading to increased overheads due to limited payload capacity in physical broadcast channels (PBCH) or physical downlink control channels (PDCCH).
Innovation Solution
A method where a network device sends a first and second paging indication separately using different resource blocks or channels, such as PBCH and PDCCH, to form a complete paging indication, reducing the payload size by transmitting only a part of the group information at each transmission, allowing the terminal device to assemble the complete group information.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If all paging indication bits are transmitted at one time through PBCH or PDCCH, then complete paging information is delivered, but the payload size of PBCH or PDCCH is increased
Solution Approach 1:
The complete paging indication is divided into multiple parts (first paging indication and second paging indication), each transmitted separately through different physical channels (PBCH and PDCCH). This segmentation reduces the payload size of each individual channel while ensuring complete paging information is delivered through the combination of multiple transmissions.
2Area of stationary object
If beam scanning is performed frequently for paging information transmission, then coverage is improved, but overheads are increased
Solution Approach 1:
Paging indications for different terminal device groups are segmented and transmitted through different physical channels (PBCH for first group, PDCCH for second group). This allows beam scanning to be performed less frequently since not all paging information needs to be transmitted through the same channel, thereby reducing overheads while maintaining coverage.
Solution Approach 2:
The patent implements periodic transmission of paging indications through different channels at different time instances. The first paging indication is transmitted periodically through PBCH, while the second paging indication is transmitted periodically through PDCCH, reducing the need for frequent beam scanning and lowering overheads.
Data Source
AI summary
This application discloses a paging indication transmission method, including: sending, by a network device, a first paging indication to a terminal device; and sending, by the network device, a second paging indication to the terminal device, where the first paging indication and the second paging indication form a complete paging indication of the terminal device. According to the foregoing paging indication transmission method and apparatus, the network device delivers the paging indication at two times, to reduce a payload for a single transmission of the paging indication.