Random Access Stop Control for Triggered TA Reporting SR

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Solution Overview

Problem

Existing wireless communication systems face inefficiencies in managing ongoing random access procedures, leading to increased latency and resource utilization, particularly in scenarios involving non-terrestrial networks (NTNs) with high propagation delays.

Innovation Solution

Implementing a mechanism to stop ongoing random access procedures based on specific criteria, such as traffic load and packet sizes, using wireless devices and base stations capable of supporting multiple technologies and releases, and employing configurable protocols to optimize communication in heterogeneous networks.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If random access procedures are allowed to complete fully, then connection establishment is ensured, but latency increases and resources are wasted

Engineering Contradiction:

Improveconnection establishmentVSAvoidlatency

Core Design Contradiction:

ReliabilityVSLoss of time

Solution Approach 1:

The base station performs preliminary actions by sending a first indication information before the random access procedure completes, notifying the wireless device to stop the ongoing procedure. This allows the network to prepare for alternative connection methods in advance, reducing overall latency while maintaining connection establishment reliability.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The system implements feedback mechanisms where the base station sends indication information to the wireless device about the random access procedure status. This feedback loop allows dynamic control of the random access process, enabling early termination when conditions warrant, thus reducing latency without compromising connection reliability.

Inventive Principle:

Principle #23Feedback

2Reliability

If random access procedures continue ongoing, then connection is established, but network resources are wasted

Engineering Contradiction:

Improveconnection establishmentVSAvoidresource utilization

Core Design Contradiction:

ReliabilityVSLoss of energy

Solution Approach 1:

The base station sends first indication information before the random access procedure completes, allowing the wireless device to stop the procedure early. This preliminary notification enables resource reallocation to more efficient procedures, reducing energy consumption while maintaining connection establishment reliability.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The system discards ongoing random access procedures that are no longer needed by sending termination indication information. Resources allocated to these procedures are then recovered and reallocated to more efficient connection methods, reducing overall energy consumption while preserving connection reliability where needed.

Inventive Principle:

Principle #34Discarding and recovering

3Loss of time

If random access procedure is stopped early, then latency is reduced and resources saved, but connection establishment may fail

Engineering Contradiction:

ImprovelatencyVSAvoidconnection establishment

Core Design Contradiction:

Loss of timeVSReliability

Solution Approach 1:

The base station provides feedback through indication information that guides the wireless device's decision to stop the random access procedure. This controlled feedback mechanism ensures that termination occurs only when appropriate conditions are met, maintaining connection establishment reliability while achieving latency reduction.

Inventive Principle:

Principle #23Feedback

Solution Approach 2:

The indication information acts as an intermediary signal between the base station and wireless device, mediating the decision to terminate the random access procedure. This intermediary mechanism ensures coordinated action that maintains connection reliability while enabling early termination for latency reduction.

Inventive Principle:

Principle #24Intermediary (Mediator)

4Adaptability or versatility

If multiple random access procedures are managed, then connection options increase, but system complexity increases

Engineering Contradiction:

Improveconnection optionsVSAvoidprocedure management

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The system segments the random access procedure management into distinct phases with specific indication information messages. This segmentation simplifies the overall management complexity by breaking down the multi-step process into manageable segments, each handled by specific protocols, while maintaining multiple connection options.

Inventive Principle:

Principle #1Segmentation

Data Source

PatentUS20250358759A1Stopping Ongoing Random Access Procedure for Triggered Scheduling Request

Publication Date: 2025.11.20 BLOOMSBURY DESIGN LABS LLC

AI summary

A method can include receiving, by a wireless device, one or more configuration parameters for a timing advance (TA) reporting procedure. The one or more configuration parameters can include a first timing advance threshold for a TA reporting based on an offset between a current timing advance value and a last reported timing advance value. The method can also include triggering the TA reporting procedure based on a condition for the first timing advance threshold being satisfied. The method can further include triggering a scheduling request (SR), based on the triggering the TA reporting procedure. The method can additionally include transmitting a TA reporting information via one or more uplink shared channel (UL-SCH) resources. The method can also include, in response to the transmitting the TA reporting information, stopping an ongoing random access procedure for the triggered SR.