User Equipment Wireless Communication Network Switching
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Solution Overview
Problem
User equipment with single reception or dual reception/single transmission capabilities must 'tune away' from a current system to access another system, leading to network connection disruptions and impact on key performance indicators.
Innovation Solution
A user equipment and method for wireless communication that allows for seamless switching between networks by transmitting an indication to the current network and switching transmissions to the new network while maintaining a suspended connection, enabling resumed connections upon return to the original network.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If user equipment with single reception or dual reception/single transmission capabilities tunes away from current system to access another system, then the user equipment can perform transmission in another system, but the network connection is disrupted and key performance indicators are impacted
Solution Approach 1:
The network is预先 informed of the UE's intention to tune away to another system. The network proactively suspends the connection before the UE actually switches, rather than reacting after the connection is already broken. This preliminary action prevents connection disruption and maintains reliability while allowing the UE to access another system.
Solution Approach 2:
The UE provides feedback to the network about its lower layer capability (single Rx or dual Rx/single Tx) and its intention to tune away. The network uses this feedback to make informed decisions about connection management, suspending connections proactively when needed. This feedback mechanism enables the network to adapt to UE capabilities and maintain connection stability during system switching.
2Ease of operation
If user equipment autonomously releases connection to current system to access another system, then the user equipment can switch systems, but the network perceives the UE as gone out of coverage
Solution Approach 1:
Instead of autonomously releasing the connection (which causes the network to think the UE is lost), the UE notifies the network in advance of its intention to tune away. The network then proactively suspends the connection with full awareness of the UE's status. This preserves the information that the UE is still in coverage, just temporarily switching systems, rather than appearing as a coverage loss.
3Productivity
If user equipment with dual reception/dual transmission capabilities is used, then simultaneous transmission in both systems is possible, but device complexity increases
Solution Approach 1:
The network is designed to handle multiple UE capability types (single Rx, dual Rx/single Tx, and dual Rx/dual Tx) through a unified connection management approach. The network proactively suspends connections for all UE types that need to tune away, regardless of their specific capabilities. This universal handling mechanism allows simpler UEs to benefit from connection suspension while more capable UEs can utilize simultaneous transmission, without requiring separate management systems for each capability type.
Data Source
AI summary
A user equipment and a method of wireless communication of same are provided. The method includes transmitting, to a first network, an indication when the user equipment is connected to the first network and is intended to be connected to a second network, and switching a transmission of the user equipment on the first network to the second network.