MAC PDU LCID Indicator for Combined Data Transmission
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Solution Overview
Problem
Current wireless communication systems, such as LTE, face challenges in efficiently transmitting MAC PDUs that combine multiple types of data, as they lack a clear mechanism to identify and manage these combinations, leading to potential data separation issues and inefficiencies.
Innovation Solution
The proposed solution involves a method where User Equipment (UE) uses an Indicator, specifically a MultiData Indicator or LCID, to identify the combination of multiple types of data within a MAC PDU, ensuring accurate transmission and reception of combined data types, such as CCCH SDU and MAC control elements, to the eNB.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If multiple types of data are combined in a single MAC PDU for transmission, then transmission efficiency is improved, but difficulty in identifying and managing data combinations increases
Solution Approach 1:
The patent segments the identification of data combinations by introducing specific indicator fields (MultiData Indicator or LCID) that divide and categorize different data type combinations within the MAC PDU structure, making each combination uniquely identifiable and manageable
Solution Approach 2:
The patent introduces an intermediary indicator mechanism (MultiData Indicator or LCID) that mediates between the combined data types and the receiving device, enabling clear identification and management of multiple data type combinations without increasing overall system complexity
2Reliability
If an indicator mechanism is introduced to identify data combinations, then data transmission accuracy is improved, but MAC PDU structure complexity increases
Solution Approach 1:
The patent merges the indicator function into existing MAC PDU structures by utilizing available fields (LCID) or adding compact indicator elements, thereby improving data transmission accuracy while minimizing increases in overall structure complexity
Solution Approach 2:
The patent changes the parameter representation by using specific values or combinations of existing fields (LCID values, indicator bits) to encode data type combination information, achieving accurate identification without requiring entirely new structural elements
Data Source
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Figure 2B
Figure 3(a)~4
AI summary
The present invention relates to a wireless communication system. More specifically, the present invention relates to a method and a device for transmitting a MAC PDU in wireless communication system, the method comprising: generating a Medium Access Control (MAC) sub-header including a Logical Channel Identifier (LCID) identifying both of a MAC Control Element (CE) and a MAC Service Data Unit (SDU); generating a MAC Protocol Data Unit (PDU) including the MAC sub-header, the MAC CE and the MAC SDU; and transmitting the generated MAC PDU.