Fast Release Indicator in Paging Response for Wireless UEs
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Solution Overview
Problem
Current wireless communication systems face challenges in efficiently releasing user equipment (UE) from active to inactive or idle mode after a paging response, leading to resource wastage and potential disruptions in connected mode operations.
Innovation Solution
A method and apparatus for wireless communication that enable a UE to receive a paging message from a base station while operating in an inactive or idle mode on one radio access network and a connected mode on another. The UE transmits a response rejecting the paging message, including information to request a fast release to the inactive or idle mode, and receives an RRC message from the base station to effect this release.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the UE responds to a paging message by transitioning to connected mode, then the network can establish communication with the UE, but the UE experiences disruption in ongoing connected mode operations on another RAN and resource wastage occurs
Solution Approach 1:
The patent segments the paging response process into two distinct paths: a fast release path that maintains inactive/idle mode, and a traditional connection establishment path. The UE includes a fast release indicator in the paging response message to select the appropriate path, avoiding unnecessary mode transitions and maintaining operational continuity on other RANs.
Solution Approach 2:
The UE performs preliminary action by including the fast release indicator in the initial paging response message before any mode transition occurs. This allows the network to proactively release the UE back to inactive/idle mode, preventing disruption to ongoing operations on other RANs before they can occur.
2Loss of information
If the UE transitions to connected mode to respond to paging, then the network can deliver downlink data, but the release process is slow and causes resource wastage
Solution Approach 1:
The patent implements a fast release mechanism that skips the traditional lengthy connection establishment and subsequent release procedures. By including the fast release indicator in the paging response, the UE triggers an immediate release process that completes in minimal time, preventing resource wastage while ensuring downlink data can be delivered through alternative means.
3Productivity
If the UE remains in inactive or idle mode to avoid disruption, then connected mode operations on other RAN are maintained, but the network cannot efficiently deliver downlink data
Solution Approach 1:
The patent introduces feedback mechanism where the UE sends a paging response message containing a fast release indicator to the network. This feedback informs the network that the UE prefers to remain in inactive/idle mode, allowing the network to adjust its data delivery strategy accordingly while maintaining operational continuity.
Data Source
AI summary
Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a base station associated with a first radio access network (RAN) may transmit, and a user equipment (UE) may receive, a paging message while the UE is operating in an inactive or idle mode on the first RAN and while the UE is operating in a connected mode on a second RAN. The UE may transmit a response rejecting the paging message to the base station associated with the first RAN, and the response may include information that causes the base station to release the UE to the inactive or idle mode. Accordingly, the base station may transmit, to the UE, a radio resource control message that includes information to release the UE to the inactive or idle mode on the first RAN. Numerous other aspects are provided.