RRC Connection Request Handling via Single Counting Message
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Solution Overview
Problem
In UMTS networks, the conventional method of handling RRC connection requests from idle state terminals leads to inefficient use of radio resources due to the need for individual RRC connection reject messages and potential re-transmissions, especially in scenarios like multicast services where many terminals simultaneously request connections, causing increased interference and load on uplink channels.
Innovation Solution
A method and apparatus that utilize a single counting status message to inform multiple terminals that their RRC connection requests should not be re-transmitted, conserving radio resources by broadcasting a connection-not-required indicator instead of sending individual reject messages, allowing terminals to determine whether to re-transmit based on this message.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If individual RRC connection reject messages are sent to each terminal, then each terminal receives specific feedback, but radio resources are wasted and response time increases
Solution Approach 1:
The patent combines multiple individual RRC connection reject messages into a single broadcast message that is transmitted to all terminals simultaneously. This merging approach maintains the feedback function while dramatically reducing radio resource consumption and transmission time, directly resolving the contradiction between reliable feedback and resource efficiency.
2Reliability
If terminals continuously re-transmit connection requests without proper feedback, then connection establishment chances increase, but radio resource wastage increases
Solution Approach 1:
The patent introduces a feedback mechanism where the network broadcasts counting status information to terminals. This feedback informs terminals whether their connection requests were successful or should be terminated, preventing unnecessary re-transmissions and optimizing radio resource utilization while maintaining connection establishment reliability.
3Reliability
If the network waits for individual reject messages from each terminal, then connection status is confirmed, but response time and processing load increase
Solution Approach 1:
The patent implements preliminary action by having the network prepare and broadcast counting status information before individual terminal responses are needed. This proactive approach allows terminals to make immediate decisions about connection requests without waiting for individual reject messages, significantly reducing response time and processing load.
Data Source
AI summary
A method and apparatus is provided for transmitting a single counting end message to reject RRC connection requests of a plurality of terminals and for providing a quick response to terminals that transmitted a connection request. RRC connection request messages are sent by a plurality of terminals to a network in response to an RRC connection-required message received on a first channel. Each terminal monitors a second channel for an RRC connection setup message. The network establishes connections with a predetermined number of terminals by transmitting an RRC connection setup message on the second channel and transmits a single RRC connection-not-required message to the plurality of terminals on the first channel. Each terminal not receiving an RRC connection setup message after a predetermined period of time then terminates the network connection procedure and does not re-transmit an RRC connection request message after receiving the RRC connection-not-required message.