Terminal Device Buffer Status Reporting Tables
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Solution Overview
Problem
Existing wireless communication systems face inefficiencies in processing Buffer Status Reports (BSR) and Scheduling Requests (SR) in terminal devices, particularly in Device-to-Device (D2D) communication scenarios, where efficient data transmission and resource allocation are hindered by complex buffer size reporting mechanisms.
Innovation Solution
The implementation of a terminal device with a transmission unit that sends MAC control elements containing buffer size fields, using predefined tables to indicate available data, where the choice of table depends on higher-layer parameters, ensuring efficient processing and resource allocation by correlating buffer sizes with indices, thereby optimizing BSR and SR operations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If multiple tables are used to indicate buffer size values for different communication types, then measurement precision is improved, but device complexity increases
Solution Approach 1:
The patent segments the buffer size indication mechanism by creating separate tables for different communication types (uplink and D2D). This allows each table to be optimized for its specific communication scenario, improving measurement precision while managing complexity through structured separation of concerns.
Solution Approach 2:
Different tables are applied locally to different communication types based on their specific requirements. The first table is used for uplink communication buffer sizes, while the second table is used for D2D communication buffer sizes, allowing each communication type to have tailored buffer size indications.
2Ease of operation
If standardized buffer size reporting is implemented, then ease of operation is improved, but adaptability decreases
Solution Approach 1:
The patent implements a universal buffer size reporting mechanism where the same MAC control element structure and reporting procedures are used across different communication types. This standardized approach improves ease of operation while maintaining adaptability through configurable table selections based on communication type.
3Adaptability or versatility
If extended buffer size ranges are supported, then adaptability is improved, but loss of information increases
Solution Approach 1:
The patent adds a dimensional aspect to buffer size reporting by introducing table selection based on communication type. This allows the system to maintain precise buffer size indications within each communication type's context while extending the overall adaptability to cover different communication scenarios with potentially different buffer size ranges.
Data Source
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AI summary
There is provided a terminal device that transmits a signal to a base station apparatus through uplink, the terminal device including: a transmission unit that transmits to the base station apparatus a first MAC control element which includes a first buffer size field indicating an amount of first data available for transmission within a first buffer for the uplink and a second MAC control element which includes a second buffer size field indicating an amount of second data available for transmission within a second buffer for a first link that is used for communication between the terminal device and a different terminal device, in which, in a case where a first parameter is not configured, a value that is used in the first buffer size field is indicated with a first table, in which, in the case where the first parameter is configured, the value that is used in the first buffer size field is indicated with a second table, and in which a value that is used in the second buffer size field is indicated at all times with the first table.