RRC Connection Request Message Segmentation for Radio Resource Allocation

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Solution Overview

Problem

In the E-UMTS system, the limited information in the initial RRC Connection Request message from the terminal to the base station leads to inaccurate radio resource allocation, resulting in time delays and inefficient use of radio resources due to potential radio resource shortages.

Innovation Solution

A method is introduced to separate and optimize the transmission of access information by determining required radio resources based on allocated resources, allowing for the generation and transmission of the RRC CONNECTION REQUEST message in parts if necessary, ensuring efficient use of allocated radio resources and minimizing time delays.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Device complexity

If the RRC CONNECTION REQUEST message is transmitted with limited information, then the message structure is simple and easy to transmit, but the radio resource allocation becomes inaccurate leading to resource shortages and time delays

Engineering Contradiction:

Improvemessage structure complexityVSAvoidradio resource allocation accuracy

Core Design Contradiction:

Device complexityVSMeasurement precision

Solution Approach 1:

The RRC CONNECTION REQUEST message is segmented into multiple parts or components. Critical information elements are separated from optional or less critical elements, allowing the base station to allocate radio resources based on the size and requirements of each segment. This segmentation enables more accurate resource allocation while keeping the initial message structure relatively simple.

Inventive Principle:

Principle #1Segmentation

2Speed

If radio resource allocation is based on limited initial information, then the allocation process is fast and simple, but it results in radio resource shortages causing time delays

Engineering Contradiction:

Improveallocation process speedVSAvoidtime delay due to resource shortage

Core Design Contradiction:

SpeedVSLoss of time

Solution Approach 1:

The patent performs preliminary actions by including information elements in the RRC CONNECTION REQUEST message that enable the base station to make an initial radio resource allocation estimate. This preliminary information allows for faster initial allocation while reducing the likelihood of resource shortages that would cause time delays.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The patent implements a feedback mechanism where the base station monitors the adequacy of allocated radio resources based on information provided in the RRC CONNECTION REQUEST message. If resource shortages are detected, the system can adjust allocations in subsequent transmissions, balancing the speed of initial allocation with the need to avoid time delays.

Inventive Principle:

Principle #23Feedback

3Measurement precision

If the RRC CONNECTION REQUEST message includes comprehensive information, then the radio resource allocation accuracy improves, but the message size increases leading to inefficient use of radio resources

Engineering Contradiction:

Improveradio resource allocation accuracyVSAvoidradio resource waste due to large message size

Core Design Contradiction:

Measurement precisionVSLoss of energy

Solution Approach 1:

The patent applies local quality by including different types of information elements in different parts of the RRC CONNECTION REQUEST message based on their importance and impact on resource allocation. Critical information that directly affects resource allocation accuracy is included, while less critical information is either omitted or placed in optional fields, optimizing the balance between allocation accuracy and message size.

Inventive Principle:

Principle #3Local quality

Solution Approach 2:

The patent changes parameters of the message structure dynamically based on terminal requirements and network conditions. Information elements are selectively included or excluded based on whether they are critical for resource allocation, allowing the message size to adapt to the actual needs of the connection request while maintaining allocation accuracy where necessary.

Inventive Principle:

Principle #35Parameter changes

Data Source

PatentUS8570956B2Method of communicating data in a wireless mobile communications system using message separation and mobile terminal for use with the same

Publication Date: 2013.10.29 LG ELECTRONICS INC

AI summary

A method for effectively transmitting and receiving access information between a terminal and a base station using a message separation for a RRC CONNECTION REQUEST message that may include: transmitting a random access preamble; receiving a random access response in response to the random access preamble, wherein the random access response includes information related to at least one allocated radio resource which will be used for transmitting the RRC CONNECTION REQUEST message; determining at least one required radio resource for transmitting the RRC CONNECTION REQUEST message; generating the RRC CONNECTION REQUEST message by considering a characteristic of at least one among the at least one allocated radio resource and the determined at least one required radio resource, and transmitting the generated RRC CONNECTION REQUEST message.