5G Standalone UE Broadcast Redirection via Intermediary Base Station
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Solution Overview
Problem
5G New Radio (NR) standalone wireless communication systems do not support broadcast content, such as eMBMS, leading to a need for improved redirection procedures for user equipment (UE) to efficiently receive broadcast content.
Innovation Solution
A method and apparatus for a UE to determine available broadcast content, receive a release message with redirection information from a first base station associated with a non-supporting RAT, and establish a connection with a second base station supporting the content using a different RAT to receive the content.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a UE is connected to a first base station using a first RAT that does not support broadcasting, then the UE can maintain connection stability, but the UE cannot receive broadcast content
Solution Approach 1:
The patent introduces a second base station using a different RAT as an intermediary to enable broadcast content reception. The UE is redirected from the first base station (which provides stable connection but no broadcast support) to the second base station (which supports broadcast content). This intermediary approach allows the system to maintain connection stability while adding broadcast capability through a different access technology.
2Adaptability or versatility
If the UE redirects to a second base station supporting broadcast content, then the UE can receive broadcast content, but the redirection process increases complexity
Solution Approach 1:
The patent applies preliminary action by providing the UE with a list of suitable frequencies and cell identities before the actual redirection occurs. The network sends this information in advance through the release message, allowing the UE to quickly identify and connect to an appropriate second base station without extensive searching or complex decision-making processes during the redirection phase.
3Ease of operation
If the UE remains connected to the first base station, then the connection procedure is simple, but the UE cannot access broadcast services
Solution Approach 1:
The patent uses a second base station as an intermediary to bridge the gap between simple connection procedures and broadcast service access. The redirection mechanism maintains procedural simplicity by providing pre-configured frequency and cell information, while the intermediary second base station provides the necessary broadcast service capability that the first base station lacks.
Data Source
AI summary
In an aspect of the disclosure, a method, a computer-readable medium, and an apparatus are provided. The apparatus may be a UE. Further, the apparatus may be configured to determine that content is available for reception based on broadcast context information. In an aspect, the apparatus may be in an idle or inactive mode and may be associated with a first base station that is associated with a first radio access technology (RAT) that does not support broadcasting of the content. The apparatus may be further configured to receive a release message from the first base station, the release message including redirection information indicating a second base station associated with a second RAT that supports broadcasting of the content, establish a connection with the second base station based on the redirection information, and receive the content from the second base station using the second RAT.