Paging Indicator Channel Timing Synchronization for High Speed Data
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional wireless communication systems lack effective methods for providing timely and efficient feedback on channel information, particularly in MIMO systems, which limits the utilization of additional dimensionalities for improved spectral efficiency and throughput.
Innovation Solution
The method involves employing a paging indicator channel in conjunction with high speed channels, where the paging indicator is transmitted to mobile devices, and scheduling information is based on parameters transmitted on common channels, allowing for the synchronization and decoding of high speed data.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If conventional wireless communication systems are used without integrated paging and high speed channel coordination, then system simplicity is maintained, but spectral efficiency and throughput are limited
Solution Approach 1:
The patent combines the paging indicator channel (PICH) and high speed shared control channel (HS-SCCH) into a unified channel structure. The PICH and HS-SCCH are merged such that the paging indicator is transmitted on the same physical channel as the high speed data scheduling information, eliminating the need for separate channel coordination and improving spectral efficiency by reducing overhead.
Solution Approach 2:
The unified channel serves multiple functions: it acts as both a paging indicator channel and a high speed shared control channel. This multi-functional channel can simultaneously indicate paging messages to mobile devices and carry scheduling information for high speed data transmissions, reducing the need for dedicated separate channels and improving overall system productivity.
2Productivity
If separate paging and high speed channels are used without synchronization, then channel design simplicity is maintained, but data retrieval efficiency is reduced
Solution Approach 1:
The patent merges the timing structures of the paging indicator channel and high speed shared control channel. By transmitting both the paging indicator and scheduling information on the same unified channel with synchronized timing, the system eliminates the need for complex inter-channel timing coordination while improving data retrieval efficiency through streamlined processing.
3Productivity
If conventional feedback mechanisms are used without integrated channel information, then system complexity is reduced, but channel utilization for MIMO systems is insufficient
Solution Approach 1:
The unified channel provides multi-functional capability by simultaneously delivering paging indicators, scheduling information, and channel state feedback. This integrated approach enables better MIMO system performance by incorporating channel information into the same transmission mechanism, improving channel utilization without requiring entirely separate feedback pathways.
Data Source
Figure 1
Figure 2
Figure 3
AI summary
Systems and methodologies are described that facilitate employing a paging indicator channel in connection with high speed channels in a wireless communications network. A paging indicator transmission can be sent on the paging channel to one or more mobile devices. The paging indicator indicates that additional information such as a full paging messages, other control plane data or other user plane data is expected to be transmitted at a specific time instant (e.g., subframe) on the associated high speed channel. A set of parameters can be transmitted on common channels that specify a set of associated subframes in a high speed channel. Mobile devices can analyze the set of parameters to determine the associated subframes and receive the subframes in accordance with a schedule.