Base Station Index Value Notification for Wireless Signal Reliability
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Solution Overview
Problem
In wireless communication systems, especially under low signal-to-interference and noise power ratio (SINR) environments, existing methods require repeated transmission of control information and varying transmission power for different physical channels, leading to increased information notification complexity for base stations to mobile stations.
Innovation Solution
A method where a base station determines a common index value for multiple physical channels based on reception information, using a lookup table to associate this index with corresponding repetition counts, and notifies the mobile station with this index value instead of individual repetition counts for each channel, reducing the amount of information transmitted.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the base station notifies the mobile station of information concerning a power offset amount and transmission repetition count for each physical channel, then the mobile station can receive signals under low SINR environments, but the amount of information to be notified increases
Solution Approach 1:
The patent combines the notification of power offset amounts and transmission repetition counts into a single unified notification mechanism. Instead of separately notifying each parameter for every physical channel, the base station aggregates this information and notifies the mobile station in a consolidated manner, thereby reducing the total information notification amount while maintaining signal reception reliability under low SINR conditions.
Solution Approach 2:
The patent creates a universal notification mechanism that serves multiple physical channels simultaneously. A single notification structure is designed to convey power offset amounts and transmission repetition counts applicable to multiple physical channels, making the notification system multi-functional and reducing redundant information transmission.
2Reliability
If transmission power is increased or transmission is repeated to expand coverage, then communication link reliability is improved, but the complexity of controlling multiple parameters increases
Solution Approach 1:
The patent merges the control of transmission power (power offset amount) and transmission repetition count into a unified control framework. By combining these parameters in the notification structure, the system reduces the complexity of managing multiple independent parameters while maintaining communication link reliability through coordinated adjustment of both parameters.
Solution Approach 2:
The base station performs preliminary determination of power offset amounts and transmission repetition counts before actual data transmission. By pre-calculating and notifying these parameters in advance, the system simplifies real-time control complexity while ensuring reliable communication link establishment under varying SINR conditions.
Data Source
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AI summary
A base station communicates with a mobile station by using a plurality of physical channel, the base station comprising: a transmitter configured to transmit a first signal to the mobile station; a receiver configured to receive a second signal from transmitted the mobile station; a controller configured to acquire an information which generated by the mobile station according to reception state of the first signal; wherein, the transmitter transmit a third signal including an index value indicating a repetition count for a fourth signal which is transmitted from the mobile station by using physical channel among the plurality of physical channel, the index value is based on the information acquired by the controller.