Acquiring CPC Capability via RNC Signaling
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Solution Overview
Problem
The serving Radio Network Controller (RNC) cannot accurately determine whether a Base Station (BS) supports continuous packet connectivity technology, leading to incorrect implementation and resource wastage in high-speed packet access systems.
Innovation Solution
A method and system where the serving RNC sends a radio link establishing or adding request message to the drift RNC, which includes continuous packet connectivity technology support capability information in the response message, allowing the serving RNC to acquire and utilize this information to manage the use of continuous packet connectivity technology by the User Equipment (UE).
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the serving RNC does not acquire CPC capability information from the drift RNC, then the system follows the standard protocol without modification, but the serving RNC cannot determine whether the BS supports continuous packet connectivity technology
Solution Approach 1:
The solution segments the information acquisition process by separating the request and response phases. The serving RNC sends a radio link establishing/adding request message to the drift RNC, which then responds with capability information included in the response message. This segmentation allows the serving RNC to obtain specific CPC capability information without requiring changes to the standard protocol framework.
Solution Approach 2:
The radio link establishing/adding response message acts as an intermediary carrier that transports the CPC capability information from the drift RNC to the serving RNC. This intermediary mechanism enables information exchange between RNCs without requiring direct modification of the standard protocol, as the capability information is embedded within existing message structures.
2Reliability
If the serving RNC acquires CPC capability information through the described method, then correct implementation of continuous packet connectivity technology is enabled, but additional message exchange steps are required
Solution Approach 1:
The solution merges the CPC capability information transmission with the existing radio link establishing/adding response message. By combining the capability information with an already-necessary message exchange, the system avoids adding separate dedicated signaling messages, thereby reducing overall system complexity while ensuring reliable CPC implementation.
Solution Approach 2:
The drift RNC prepares and includes the CPC capability information in the response message in advance, before the serving RNC needs to make decisions about continuous packet connectivity technology. This preliminary preparation of information ensures that the serving RNC has all necessary data available for reliable CPC implementation without requiring additional follow-up exchanges.
3Loss of energy
If continuous packet connectivity technology is implemented without accurate BS capability information, then UE power resource and system load can be saved when supported, but incorrect implementation leads to resource wastage
Solution Approach 1:
The solution implements a feedback mechanism where the drift RNC provides CPC capability information back to the serving RNC through the radio link establishing/adding response message. This feedback enables the serving RNC to make informed decisions about whether to configure continuous packet connectivity technology, ensuring correct operation while optimizing UE power consumption and system load without causing resource wastage.
Data Source
AI summary
A method and system for acquiring continuous packet connectivity technology support capability information. The method comprises the following steps: sending a radio link establishing request message or a radio link adding request message to a drift radio network controller when it is monitored that a UE needs to establish or add a radio link with a cell dominated by the drift radio network controller, by means of a serving radio network controller; adding a continuous packet connectivity technology support capability information of an adjacent cell into a radio link establishing response message or a radio link adding response message after the radio link establishing request message or the radio link adding request message is received, and returning the radio link establishing response message or the radio link adding response message to the serving radio network controller, by means of the drift radio network controller; acquiring the continuous packet connectivity technology support capability information of the adjacent cell from the radio link establishing response message or the radio link adding response message, after the radio link establishing response message or the radio link adding response message is received, by means of the serving radio network controller.