WLAN AP MAC Address Routing for LTE Aggregation
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Solution Overview
Problem
In LTE-WLAN aggregation systems, the WLAN AP may fail to accurately forward uplink WLAN data packets to the target eNB when connected to multiple WTs, leading to incomplete data aggregation and transmission issues.
Innovation Solution
Incorporating the MAC address of the target WT into the WLAN data packet allows the WLAN AP to correctly forward the data to the target WT, which then sends it to the target eNB, ensuring accurate uplink transmission by ensuring the data packet is routed to the correct eNB for aggregation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If the WLAN AP is connected to multiple WTs to increase network coverage and capacity, then the network coverage and user capacity are improved, but the WLAN AP cannot accurately forward uplink data packets to the target eNB, leading to data aggregation failures
Solution Approach 1:
The patent introduces a MAC address as an intermediary identifier in the data packet structure. When the WLAN AP receives an uplink data packet, it extracts the MAC address of the target WT from the packet, uses this MAC address to identify which eNB the packet should be forwarded to, and then forwards the packet to the corresponding eNB. This intermediary mechanism resolves the ambiguity caused by multiple WTs being connected to the same WLAN AP.
Solution Approach 2:
The patent segments the data packet into distinct components, including the MAC address field that separately identifies the target WT. By segmenting the packet structure and extracting the MAC address as a separate identifier, the system can accurately determine the target eNB for forwarding without confusion from multiple WTs.
2Speed
If the WLAN AP forwards data packets without MAC address identification, then the forwarding process is simple and fast, but the data packets cannot be correctly routed to the target eNB in multi-WT scenarios
Solution Approach 1:
The patent applies preliminary action by pre-configuring each WT with a unique MAC address and pre-establishing the correspondence between WT MAC addresses and eNB identifiers. When the WLAN AP receives a data packet, it can directly extract the pre-configured MAC address and quickly determine the target eNB without complex real-time analysis, thus maintaining fast forwarding speed while ensuring accurate routing.
Data Source
AI summary
A data transmission system includes one or more evolutional Node B (eNBs), one or more wireless local area network terminations (WTs), one or more wireless local area network access points (WLAN APs), and user equipment (UE). The WTs are connected to the eNBs in a one-to-one correspondence, and each WT is connected to at least one WLAN AP. The UE is configured to send an LTE data packet to a target eNB through an LTE network. The UE is configured to send to the WLAN AP a WLAN data packet including a MAC address of a target WT connected to the target eNB. The WLAN AP is configured to send the WLAN data packet to the target WT according to the MAC address of the target WT. The target WT is configured to send the WLAN data packet to the target eNB for aggregation with the LTE data packet.