Time-Division Coexistence Mode for LTE-ISM Interference
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Solution Overview
Problem
Wireless communication systems face interference issues due to adjacent frequency band leakage and harmonic frequency interference between different communication systems, such as LTE and ISM or GPS systems, leading to communication failures and high code error rates, which conventional methods like using higher performance filters increase the cost of user equipment.
Innovation Solution
A method for establishing a co-existence working mode where user equipment in a first communication system performs first and second communications with a base station and another apparatus in a time-division manner, allowing for quick configuration of co-existence modes by requesting and configuring the mode with a base station, using messages to encapsulate configuration information and feedback on completion status.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If higher performance transmitting filter is employed to reduce adjacent frequency band leakage, then interference between communication systems is reduced, but the cost of user equipment is largely increased
Solution Approach 1:
The patent segments the operation of different communication systems into separate time periods. The user equipment alternates between operating in the first communication system during first time periods and in the second communication system during second time periods, thereby eliminating frequency interference without requiring expensive filters
Solution Approach 2:
The patent implements periodic switching between different communication systems. The user equipment periodically transitions between operating modes, alternating between the first communication system and the second communication system in a time-division manner, which resolves interference issues while maintaining cost-effectiveness
2Adaptability or versatility
If multiple communication systems operate simultaneously in user equipment, then communication functionality is enhanced, but interference between systems occurs due to adjacent frequency band leakage
Solution Approach 1:
The patent divides the operation of multiple communication systems into separate time segments. The user equipment operates in the first communication system during first time periods and switches to the second communication system during second time periods, enabling multi-system functionality without mutual interference
Solution Approach 2:
The patent introduces dynamic time-division switching between different communication systems. The user equipment adaptively alternates between operating modes based on configured time periods, enabling flexible multi-system operation while avoiding frequency interference through dynamic resource allocation
Data Source
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AI summary
The present invention discloses a coexistent working mode establishment method, a base station, user equipment, and system for performing the method. In the coexistent working mode, the user equipment in a first communication system performs respectively, in a way of time division multiplexing, a first communication with the base station in a first communication system and a second communication with the device in a second communication system which is different from the first communication system. The coexistent working mode establishment method comprises the following steps: the base station receives from the user equipment a mode establishment request which is used for requesting an establishment of the coexistent working mode; the base station encapsulates the configuration information of the coexistent working mode allowed to be used by the user equipment into an establishment response message; the base station transmits the establishment response message to the user equipment and receives from the user equipment a feedback message which represents whether the configuration of the coexistent working mode has been completed or not.