Network Device Paging Message Transmission via Reported Beam Information
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Solution Overview
Problem
In 5G communications systems, the current method of sending paging messages in a beam sweeping manner leads to waste of downlink time-frequency resources due to the inability of network devices to determine the correct beam in which a communications device resides, resulting in inefficient resource utilization.
Innovation Solution
A method where a network device determines, based on beam information reported by a communications device, whether it is in a beam update mode and sends paging messages over a specific beam, thereby avoiding beam sweeping and reducing resource waste. This involves the communications device reporting beam information and the network device using this information to determine the appropriate beam for message transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the network device sends paging messages in a beam sweeping manner to ensure the communications device can receive the paging message, then the paging message delivery reliability is improved, but the downlink time-frequency resource waste increases
Solution Approach 1:
The communications device performs beam measurement and reports beam information to the network device before the paging message is sent. This preliminary action enables the network device to determine the correct beam for paging message transmission in advance, avoiding the need for beam sweeping and reducing downlink time-frequency resource waste while ensuring reliable delivery.
Solution Approach 2:
The communications device feeds back beam information (such as receive beam indices or beam quality metrics) to the network device. This feedback mechanism allows the network device to identify the optimal beam for paging message transmission, thereby improving delivery reliability while minimizing resource consumption by eliminating unnecessary beam sweeping operations.
2Reliability
If the network device uses beamforming technology to increase transmit power and SINR, then the signal quality is improved, but the system complexity increases
Solution Approach 1:
The communications device autonomously performs beam measurement, identifies the optimal receive beam, and reports the beam information to the network device. This self-service approach enables the system to achieve high signal quality through beamforming without requiring complex network-side beam management, as the device itself handles the beam selection and reporting processes.
Data Source
AI summary
This application provides a paging message transmission method and relates to the field of communications technologies, to resolve a problem of waste of a downlink time-frequency resource. The method includes: determining, by a network device, that a communications device is in a beam update mode; then determining, by the network device, a second beam based on beam information reported by the communications device, where the beam information includes information about at least one receive beam, and the information about the at least one receive beam includes information about the second beam; and finally sending, by the network device, a paging message to the communications device over a first beam, where the first beam corresponds to the second beam. This application is applicable to a paging message transmission process.