Uplink Backlog Report Dictionaries for Wireless Terminals
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Solution Overview
Problem
Current wireless communication systems face inefficiencies in reporting uplink traffic channel resource requests due to the use of a single fixed interpretation format, which is not well-suited for diverse wireless terminal operating conditions and varying application needs, leading to suboptimal allocation of air link resources.
Innovation Solution
Implementing a method that uses multiple report dictionaries to map information bits to bit patterns, allowing wireless terminals to dynamically select the appropriate dictionary based on current conditions, enabling efficient communication of uplink traffic channel resource requests and supporting multiple request groups and backlog information.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a single fixed interpretation uplink traffic channel request report format is used, then the implementation is simple, but the efficiency of communicating a wide range of uplink traffic channel request information is poor
Solution Approach 1:
The patent applies dynamics by transitioning from a static, fixed interpretation report format to a dynamic system where the interpretation format can be selected and changed based on current communication needs. The wireless terminal and base station can dynamically choose different report formats (e.g., 3-bit, 4-bit, or extended formats) depending on the specific uplink traffic channel request information that needs to be communicated, allowing the system to adapt its reporting capability to match the actual information requirements.
Solution Approach 2:
The patent implements parameter changes by modifying the bit size and interpretation parameters of the uplink traffic channel request report format. Instead of using a single fixed format, the system can change parameters such as the number of bits allocated for different report elements (e.g., changing from a 3-bit format to a 4-bit format, or extending to 5 bits for additional request groups), thereby adjusting the reporting capacity to match the complexity of the traffic channel requests that need to be communicated.
2Adaptability or versatility
If the bit size of the fixed interpretation information report is increased to a relatively large number, then the range of reporting possibilities increases, but valuable air link resources are consumed
Solution Approach 1:
The patent applies partial action by implementing variable-length or selective reporting formats where only the necessary number of bits are used for each specific reporting scenario. Instead of always transmitting a maximum-size report (e.g., always using 5 bits), the system can use shorter formats (3 or 4 bits) when fewer request groups need to be reported, and only extend to longer formats when additional request group information is required. This partial utilization of the available bit capacity conserves air link resources while maintaining the ability to report comprehensive information when needed.
3Reliability
If multiple uplink traffic channel request groups are supported, then quality of service support is enabled, but the complexity of the reporting structure increases
Solution Approach 1:
The patent applies segmentation by dividing the uplink traffic channel requests into multiple distinct request groups (e.g., first request group, second request group, third request group, fourth request group), each potentially representing different quality of service requirements or traffic types. The reporting structure is segmented to allow selective reporting of these groups using different bit allocations. For example, specific bits in the report can indicate the status of specific request groups, allowing the base station to understand which QoS categories have pending traffic without requiring a completely separate reporting mechanism for each group.
Data Source
AI summary
Methods and apparatus for communicating information using a plurality of report dictionaries are described. A plurality of request dictionaries are implemented for a wireless terminal to use for multi-bit uplink transmission backlog request reports communicated via the dedicated control channel. Each dictionary defines a different bit mapping interpretation for a set of multi-bit uplink transmission backlog request reports, e.g. a 3 bit uplink request report and a 4 bit uplink request report. The plurality of request dictionaries includes a default dictionary and additional dictionaries. The implementation of a plurality of alternative request dictionaries expands the reporting possibilities allowing a wireless terminal to use a reporting format well-suited to its current needs. The default dictionary is mandated to be used under certain predefined conditions, e.g., upon entry into the active state. Rules for transitioning between different dictionaries and continuing to use a selected dictionary are described.