Mobile Station Connection Setup Timing Calculation
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Solution Overview
Problem
In mobile communication systems, the existing connection setup process between a mobile station and a wireless access network device leads to increased connection delay and battery power consumption due to unnecessary signal reception operations and repeated connection attempts, as well as delays in channel setup and synchronization.
Innovation Solution
A mobile communication system that includes a connection set-up signal reception timing calculation unit in the mobile station and a connection set-up signal scheduling unit in the wireless access network device, which calculates and assigns fixed reception timings for connection setup signals, allowing the mobile station to determine if the signal is received and perform operations accordingly, reducing unnecessary power consumption and channel switching.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If the mobile station constantly monitors the forward access channel for connection setup signals, then the connection setup can be detected timely, but battery power consumption increases
Solution Approach 1:
The mobile station calculates and stores the expected reception timing of the connection setup signal in advance, based on the transmission timing of the connection request signal. This preliminary timing calculation allows the mobile station to wake up and monitor only at the specific expected time rather than continuously, reducing power consumption while ensuring timely detection.
Solution Approach 2:
Instead of continuous monitoring, the mobile station employs periodic monitoring at predetermined intervals based on the calculated reception timing. The mobile station monitors the forward access channel at specific periodic moments when the connection setup signal is expected to be transmitted, rather than continuously, thereby reducing energy consumption while maintaining detection capability.
2Reliability
If the mobile station repeatedly attempts connection setup beyond the first attempt, then connection reliability improves, but connection delay increases
Solution Approach 1:
The mobile station uses feedback information from the connection request signal transmission to determine the expected reception timing of the connection setup signal. By calculating the reception timing based on the transmission timing and using this feedback loop, the mobile station can efficiently determine whether the connection setup was successful without unnecessary repeated attempts, thereby reducing connection delay while maintaining reliability.
3Reliability
If the mobile station switches from physical random access channel to secondary common control physical channel and then to dedicated physical channel, then signal transmission quality improves, but channel setup time increases
Solution Approach 1:
The mobile station calculates the expected reception timing of the connection setup signal in advance, based on the transmission timing of the connection request signal. This preliminary timing information allows the mobile station to prepare for the channel switching process and reduces the time needed for channel setup and synchronization, as the mobile station already knows when to expect the signal and can pre-configure its reception parameters.
Data Source
AI summary
A mobile communication system is provided that performs bi-directional communications between a mobile station and a wireless access network device. The mobile station includes a connection set-up signal reception timing calculation unit for calculating a reception timing of a connection set-up signal when a connection request signal is transmitted, and a connection set-up signal reception determination unit that determines, according to the reception timing, whether the connection set-up signal is received, and performs a signal reception operation based on the determination. The wireless access network device includes a connection set-up signal scheduling unit that, after receiving a connection request signal from the mobile station, performs a connection set-up signal transmission assignment based on a reception timing of the connection request signal, a connection set-up signal generation unit that generates a connection set-up signal to be sent to the mobile station; and a connection set-up signal transmission unit that transmits the connection set-up signal based on the connection set-up signal transmission assignment.