Paging Message Transmission in Separate Transport Blocks for Lower UE Power
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Solution Overview
Problem
In existing LTE systems, user equipment (UE) wastes power consumption and increases system resource overheads due to repeated detection of control channels for paging messages, especially in low-cost or low-complexity devices, and enhanced coverage scenarios.
Innovation Solution
The method involves transmitting paging messages in separate transport blocks without relying on control channel scheduling, using indication information in a first paging message to instruct the reception of a second paging message, allowing flexible transport block size adjustments and reducing the need for UE detection of control channels.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the control channel is repeatedly sent to enable reliable paging message transmission in enhanced coverage scenarios, then the paging message can be reliably received, but system resource overheads are increased and network resource utilization is reduced
Solution Approach 1:
The patent extracts the paging message from the traditional control channel scheduling mechanism and places it directly in the data channel. This removes the need for separate control channel transmissions to schedule paging messages, thereby reducing system resource overhead while maintaining reliable delivery through direct data channel transmission.
Solution Approach 2:
The patent merges the control information and paging message into a single data channel transmission. By combining what were previously separate control channel scheduling messages and data channel paging messages into one unified transmission, the system reduces the total number of transmissions required while ensuring reliable delivery.
2Reliability
If the control channel and paging message are repeatedly sent for enhanced coverage, then the UE can reliably detect the paging message, but detection complexity and power consumption overheads of the UE are greatly increased
Solution Approach 1:
The patent extracts the paging message detection task from the complex control channel detection process and places it directly in the data channel. This simplifies the UE's detection process by eliminating the need to first detect control channel scheduling information before detecting the paging message, thereby reducing detection complexity and power consumption while maintaining reliable detection through direct data channel transmission.
Solution Approach 2:
The patent allows the UE to skip the intermediate control channel detection step and directly detect the paging message in the data channel. This skipping of the control channel detection phase reduces the total detection time and power consumption required for reliable paging message reception in enhanced coverage scenarios.
3Loss of information
If the UE successfully detects the control channel and paging message, then the UE can determine whether it is paged, but power consumption is wasted when the paging message does not indicate the UE is paged
Solution Approach 1:
The patent segments the paging message into two parts: a first part containing the UE's identity or paging indication that can be quickly checked, and a second part containing the actual paging message content. The UE first detects the first part to determine if it is paged, and only if indicated as paged does the UE proceed to detect the second part, thereby avoiding wasted power consumption when not paged.
Solution Approach 2:
The patent performs preliminary action by placing the UE identity or paging indication at the beginning of the paging message transmission. The UE detects this preliminary information first to determine whether further detection is necessary, thereby avoiding the waste of power consumption that would occur if the UE had to detect and process the entire paging message regardless of whether it was the intended recipient.
Data Source
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AI summary
A paging message transmission method, a base station, and user equipment are provided. The paging message transmission method includes: determining indication information included in a first paging message, where the indication information is used to instruct user equipment UE to receive the first paging message and/or receive a second paging message; sending the first paging message including the indication information, where the first paging message is included in a first transport block; and sending the second paging message if the indication information instructs the user equipment to receive the second paging message, where the second paging message is included in a second transport block, and the second transport block and the first transport block are different transport blocks that are separately transmitted.