Cell Offset Transmission via Dedicated Channels
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Solution Overview
Problem
Conventional telecommunication networks face delays and increased processing time for user terminals in determining cell individual offsets, leading to inappropriate event triggering and capacity loss due to the need to read system information from broadcast channels, which is periodic and resource-intensive.
Innovation Solution
Transmitting cell individual offset information on channels other than the broadcast channel, such as reference or pilot symbols, allowing the user terminal to extract and apply offsets without reading system information, reducing delays and processing overhead.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If cell individual offset information is transmitted on broadcast channel, then all user terminals can receive the information, but user terminals experience delays and increased processing time due to periodic transmission
Solution Approach 1:
The patent segments the information transmission by separating cell individual offset information from the periodic broadcast channel transmissions. Instead of relying on periodic broadcast, the offset information is transmitted on dedicated physical channels (such as PDCCH or PDSCH) that can deliver information immediately when needed, thus resolving the contradiction between reliable delivery and time delay.
Solution Approach 2:
The network transmits cell individual offset information on dedicated channels before the user terminal needs to perform measurements or handover decisions. This preliminary transmission ensures that the offset information is already available in the user terminal when required, eliminating delays associated with periodic broadcast channel readings.
2Loss of information
If user terminal reads system information from broadcast channel to determine offsets, then offset information can be obtained, but processing time and power consumption increase
Solution Approach 1:
The patent extracts the cell individual offset information from the periodic broadcast channel system information and places it on dedicated physical channels. This extraction allows user terminals to obtain offset information without reading the entire system information block, significantly reducing processing time and power consumption while maintaining information completeness.
Solution Approach 2:
The network automatically provides cell individual offset information on dedicated channels that user terminals can access directly during measurement and handover procedures. This self-service mechanism eliminates the need for user terminals to actively read and process periodic broadcast system information, reducing their power consumption and processing burden.
3Reliability
If cell individual offset information is transmitted periodically on broadcast channel, then information can be delivered to all terminals, but network capacity is reduced due to resource overhead
Solution Approach 1:
The patent applies local quality by transmitting cell individual offset information on dedicated physical channels that are allocated specifically for this purpose, rather than using the general-purpose broadcast channel. This dedicated allocation ensures reliable delivery to relevant user terminals while minimizing overhead on the overall network capacity, as the dedicated channels are efficiently utilized only when offset information needs to be transmitted.
Data Source
AI summary
A terminal unit, base station, computer readable medium and method for transmitting cell individual offset information from a base station in a cell in a communication network, to a user terminal that applies the cell individual offset information to measurement reports and/or events associated with the cell, including, generating the cell individual offset information; mapping the cell individual offset information on at least one channel that is different from a broadcast channel; and transmitting the mapped cell individual offset information.