RRC Connection Setup via Resource Mapping
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Solution Overview
Problem
The existing LTE system faces challenges in supporting the setup of RRC connections for a large quantity of UEs due to the limited length of information carried in RRC connection requests, leading to congestion and delays in communication.
Innovation Solution
A method and apparatus that establish a mapping relationship between a part of RRC connection request information and a connection request resource, allowing the UE to implicitly send part of the RRC request information before originating the RRC connection request, reducing the amount of information needed in the RRC request message and extending its length to accommodate more types of users, thereby optimizing network resource allocation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the RRC connection request message uses a fixed length format, then the message structure is simple and easy to process, but it cannot accommodate information for a large quantity of UEs, causing congestion and delays
Solution Approach 1:
The RRC connection request information is segmented into two parts: a first information segment carried in the connection request resource selection and a second information segment carried in the RRC connection request message. This segmentation allows the fixed-length message structure to be maintained while accommodating additional UE information through the resource selection mechanism, thereby increasing connection setup capacity without compromising structural simplicity.
2Length of stationary object
If the information length in RRC connection request is limited, then the message size remains manageable, but it cannot support diverse UE types and access reasons, leading to communication delays
Solution Approach 1:
The patent extends the information carrying capacity by adding another dimension through resource selection. Instead of increasing the message length directly, the system uses the connection request resource (time-frequency resources, preamble sequences, etc.) as an additional dimension to encode UE information. This allows diverse UE types and access reasons to be supported while keeping the message length manageable.
3Productivity
If more UEs attempt to establish connections simultaneously, then network utilization increases, but the limited information length causes congestion and access delays
Solution Approach 1:
The patent performs preliminary action by having UEs encode part of their connection request information in advance through connection request resource selection. This preliminary encoding of the first information segment allows the network to pre-process and categorize connection requests before receiving the full RRC message, enabling more efficient handling of simultaneous connection attempts and reducing congestion-related delays.
Data Source
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AI summary
Embodiments of the present invention provide a connection setup method, apparatus, and system. The method in the present invention includes: sending information about to-be-provided connection request resources to a user equipment UE set; receiving a connection request message that is sent on a selected connection request resource by one UE in the user equipment set; acquiring a first information segment of a radio resource control connection request of the UE according to the selected connection request resource and the mapping relationship; receiving a radio resource control connection request message that is sent, by the UE, on a radio resource that corresponds to the resource scheduling information; and determining radio resource control connection request information of the UE according to the first information segment of the radio resource control connection request and a second information segment of the radio resource control connection request. In the embodiments of the present invention, by reducing a quantity of information carried in a connection request message, setup of radio resource control connections for more user terminals is implemented.