User Equipment Common Channel Resource Acquisition
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Solution Overview
Problem
The coexistence of RACH fallback and standalone HS-DPCCH transmission sub-features in wireless communication networks leads to conflicts in user equipment operations, particularly when conflicting instructions are received, potentially worsening network congestion and inefficient resource allocation.
Innovation Solution
A method for user equipment to select a common channel type for uplink transmission by attempting to acquire resources on a first type of common channel based on an order to provide feedback, then ceasing attempts if no information is available, and considering fallback to a second type of channel if instructed, thereby optimizing resource usage and minimizing network congestion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If user equipment attempts to acquire resources on a first type of common channel for feedback transmission, then feedback transmission capability is improved, but network congestion increases when no information is available to send
Solution Approach 1:
The user equipment checks whether there is any information to be sent before attempting to acquire resources on the first type of common channel. This preliminary check prevents unnecessary resource acquisition attempts when no feedback data is available, thereby reducing network congestion while maintaining the capability to transmit feedback when needed.
2Reliability
If user equipment continuously attempts to acquire common channel resources, then feedback transmission reliability is improved, but energy consumption increases
Solution Approach 1:
The user equipment performs a preliminary check to determine whether there is any information to be sent before initiating the resource acquisition process. This prevents unnecessary energy consumption from continuous acquisition attempts when no feedback data is available, while maintaining reliable feedback transmission when data is present.
Solution Approach 2:
The resource acquisition process is made dynamic by conditionally attempting to acquire resources only when information is available to send. The user equipment adapts its behavior based on the presence or absence of feedback data, transitioning between active acquisition mode and idle mode accordingly.
3Productivity
If user equipment follows RACH fallback instructions when common channels are congested, then network resource allocation is improved, but transmission reliability may be compromised when fallback is not appropriate
Solution Approach 1:
The user equipment checks whether there is any information to be sent before attempting to acquire resources on the first type of common channel. This preliminary action enables the equipment to make informed decisions about whether to proceed with normal feedback transmission or appropriately handle RACH fallback scenarios, balancing network resource allocation efficiency with transmission reliability.
Data Source
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AI summary
A method of selecting a common channel type for uplink transmission in a wireless communication network when conflicting instructions are received, a computer program product and user equipment operable to perform that method. The method comprises: attempting to acquire resource on a first type of common channel for uplink transmission of information in accordance with a first received instruction; receiving a second instruction to make any uplink transmission on a second type of common channel; determining whether there is any information to be sent and, if not, ceasing attempts to acquire resource on the first type of common channel. Aspects and embodiments described aim to provide a method to resolve a mixture of commands received by user equipment whilst aiming to ensure efficient overall network operation.