RRC Connection Request Service Type Indication for Voice Video Short Message
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Solution Overview
Problem
In the context of instant messaging services such as voice, video, and short message services, existing technologies fail to establish connections due to network congestion control or overload control, leading to service failures.
Innovation Solution
A service processing method and system that includes a base station and mobility management network element capable of receiving service type indications in RRC and NAS requests, allowing them to determine and establish connections for user equipment even during congestion or overload control, ensuring service setup by sending appropriate setup messages.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the access network performs congestion control or overload control by rejecting signaling connection requests, then the signaling load on the network side is reduced, but the service (voice, video, or short message) fails to be established
Solution Approach 1:
The patent applies local quality by differentiating treatment of signaling connections based on service type. The base station identifies IMS service requests (voice, video, short message) and provides them with preferential access by skipping ACB and rejecting congestion control rejections, while other services continue to undergo normal congestion control. This localized quality enhancement ensures critical services are established successfully without unnecessarily increasing overall network signaling load.
Solution Approach 2:
The patent changes the parameter of access control policy dynamically based on service type. When an IMS service is detected, the system transitions from a state of applying congestion control to a state of allowing preferential access. The base station modifies its behavior by changing the acceptance parameter for signaling connections from 'reject during congestion' to 'accept for IMS services' based on the service type indication in the RRC connection request.
2Ease of operation
If the AS layer skips ACB to initiate signaling connection setup request for IMS services, then preferential access processing is achieved, but the network side may still reject the request during congestion control
Solution Approach 1:
The patent implements feedback by having the UE indicate the service type in the RRC connection request message. The base station receives this feedback and uses it to determine whether to apply preferential access processing. This feedback mechanism allows the network to identify IMS services and adjust its congestion control behavior accordingly, ensuring that preferential access is granted only when needed while maintaining connection establishment reliability.
Solution Approach 2:
The patent applies preliminary action by having the UE prepare and include the service type indication in the RRC connection request before the base station makes its congestion control decision. This preliminary identification of service type enables the base station to make an informed decision about whether to skip congestion control rejection, ensuring that IMS services receive preferential treatment before the congestion control mechanism can interfere.
Data Source
AI summary
Embodiments of the present invention provide a service processing method, a related apparatus, and a system. The method includes: UE adds a service type indication of a service initiated by the UE to an RRC connection request and sends the RRC connection request to a base station, and adds the service type indication of the service initiated by the UE to a non-access stratum NAS request and sends the NAS request to a mobility management network element. In this way, when a network side performs congestion control or overload control, the base station may determine, according to the service type indication, that the service initiated by the UE is a voice service, a video service, or a short message service, accept the RRC connection request. Similarly, the mobility management network element may accept, according to the service type indication, the NAS request.