Access Burst Acknowledgement Without Resource Assignment
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Solution Overview
Problem
Current methods for multilateration timing advance (MTA) procedures in wireless communication networks require the mobile station (MS) to be assigned resources for acknowledgement, which is unnecessary when using the Access Burst method, leading to inefficiencies in power consumption and resource allocation.
Innovation Solution
A mobile station and base station subsystem (BSS) configuration that allows the MS to perform MTA procedures using the Access Burst method without being assigned radio resources, by modifying existing assignment messages to exclude resource allocation and using new message types that acknowledge access attempts without assigning resources.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If the mobile station uses the Access Burst method for MTA procedures, then power consumption is reduced and resource allocation is optimized, but the base station cannot properly acknowledge the access attempt without assigning resources
Solution Approach 1:
The patent extracts the resource assignment function from the acknowledgement message. The base station sends an acknowledgement message on the AGCH that confirms receipt of the access burst without including resource assignment information. This separates the acknowledgement function from the resource assignment function, allowing the MS to use the Access Burst method without being forced into a full resource allocation procedure.
Solution Approach 2:
The patent introduces an intermediary indication in the acknowledgement message that tells the mobile station whether resources have been assigned. This intermediary signal allows the MS to interpret the acknowledgement message correctly - understanding that an acknowledgement without resource assignment indication means the Access Burst method should be used, thereby maintaining reliability of the acknowledgement while enabling power-efficient operation.
2Reliability
If the base station assigns resources for acknowledgement, then the access attempt is properly confirmed, but unnecessary resource allocation occurs when using the Access Burst method
Solution Approach 1:
The patent removes the resource assignment component from the acknowledgement message when the Access Burst method is used. The base station sends an acknowledgement on the AGCH that contains only the confirmation of access burst receipt, excluding any resource assignment fields. This extraction prevents unnecessary resource allocation while maintaining reliable access attempt confirmation.
Solution Approach 2:
The patent changes the parameter state of the acknowledgement message by setting an indication parameter that specifies whether resource assignment is included. When this parameter indicates no resource assignment, the MS understands that the Access Burst method is in effect and no additional resources should be allocated, thus optimizing resource quantity while maintaining confirmation reliability.
3Adaptability or versatility
If legacy assignment messages are used for Access Burst method, then message compatibility is maintained, but resource allocation inefficiency occurs
Solution Approach 1:
The patent makes the acknowledgement message universal by designing it to serve multiple functions: it can both acknowledge access attempts and optionally assign resources, depending on the indication parameter. This multi-functionality allows the same message structure to work for both traditional methods and the Access Burst method, maintaining compatibility while enabling resource allocation efficiency through the optional resource assignment field.
Solution Approach 2:
The patent introduces dynamic behavior to the acknowledgement message through an indication parameter that changes based on the operational mode. When the Access Burst method is used, the parameter indicates no resource assignment, and the message structure adapts to exclude resource allocation fields. This dynamic adjustment maintains legacy compatibility while improving resource allocation efficiency for the Access Burst method.
Data Source
AI summary
A mobile station (MS), a base station subsystem (BSS), and various methods are described herein that enable the MS to receive acknowledgement of an access attempt for performing a multilateration timing advance (MTA) procedure using the Access Burst method without also being assigned resources.