Dynamic MAC Subheader Selection for Large Data Transmissions
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Solution Overview
Problem
Current communication technologies face limitations in indicating the size of data blocks greater than 32767 octets due to insufficient length fields in MAC subheaders, leading to unnecessary overhead for shorter data transmissions and inadequate support for emerging high-data-rate communication requirements.
Innovation Solution
A method and system that dynamically select and use different MAC subheader formats based on the size of the MAC Service Data Unit (SDU) and a signaling parameter, allowing for a longer length field when necessary, to efficiently transmit data between nodes in a communication network.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a 15-bit length field is used in MAC subheader to indicate larger data sizes, then the maximum indicated size increases to 32767 octets, but unnecessary overhead is introduced for shorter data transmissions
Solution Approach 1:
The patent implements dynamic selection of MAC subheader formats based on the actual size of the MAC SDU being transmitted. The transmitting node determines whether to use a first MAC subheader format (with shorter length field) or a second MAC subheader format (with longer length field) depending on the data size requirements, thereby optimizing the balance between indication capability and overhead for each transmission
Solution Approach 2:
The patent changes the parameter of length field size in the MAC subheader from a fixed value to a variable value that adapts to the data transmission requirements. By configuring different length field sizes (e.g., 7 bits, 15 bits, or extended sizes) based on the MAC SDU size and network configuration, the system achieves flexible data size indication while minimizing overhead for smaller transmissions
2Ease of manufacture
If the length field size is fixed at 15 bits, then implementation is simplified, but the capability to indicate data sizes greater than 32767 octets is lost
Solution Approach 1:
The patent segments the MAC subheader into different formats with different length field sizes. Instead of using a single fixed-length field, the system divides the indication capability into multiple segments (first MAC subheader format with shorter length field, second MAC subheader format with longer length field), allowing the appropriate segment to be selected based on data size requirements
Solution Approach 2:
The patent creates a universal MAC subheader structure that can serve multiple functions: the first MAC subheader format handles shorter data transmissions with minimal overhead, while the second MAC subheader format handles larger data transmissions requiring extended size indication. This multi-functional approach allows a single MAC layer to efficiently support both legacy and emerging high-data-rate communication requirements
Data Source
AI summary
The present disclosure relates to a pre-5th-Generation (5G) or 5G communication system to be provided for supporting higher data rates Beyond 4th-Generation (4G) communication system such as Long Term Evolution (LTE). A method and system for managing data transmission in a communication network is provided. During Data Resource Bearer (DRB) creation, network signals to a transmitting node, the data transfer requirement. The network uses a signaling parameter to indicate a large data transfer requirement. Based on the data transfer requirement information collected from the network, the transmitting node determines the type of data format that needs to be used for the data transmission. If the network signals large data transfer requirement, then the transmitting node selects a Subheader format in which the length field of the data format suits the large data transfer requirement. Further, data communication is initiated using the selected Subheader format.