Baseband UDP/TCP Encapsulation via IPSec Synchronization
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Solution Overview
Problem
Existing technologies lack efficient methods for enabling UDP/TCP encapsulation in baseband, which hinders the realization of higher data rates due to the absence of mechanisms for retrieving uplink Security Protocol Index (SPI) from the IPSec host.
Innovation Solution
The proposed solution involves an apparatus with processing circuitry that negotiates with an IPSec host device to determine if both the user equipment (UE) and the IPSec host can support synchronization of IPSec information. When capable, the apparatus receives IPSec information over a dedicated channel, including UL/DL SPI, to enable UDP/TCP encapsulation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If UDP/TCP encapsulation is implemented in baseband, then higher data rates are achieved, but the complexity of the baseband processing increases due to the need for IPSec information synchronization
Solution Approach 1:
The patent introduces an intermediary mechanism where the UE negotiates with the network to determine IPSec capability support, and the network provides IPSec information (including UL/DL SPI) through dedicated signaling. This intermediary approach allows the baseband to enable UDP/TCP encapsulation without having to independently manage complex IPSec synchronization, thus achieving higher data rates while controlling baseband processing complexity.
2Adaptability or versatility
If IPSec information synchronization is supported, then UDP/TCP encapsulation is enabled, but the negotiation and information exchange processes increase signaling overhead
Solution Approach 1:
The patent implements preliminary action by having the UE negotiate IPSec capability support with the network during the initial connection setup phase, before actual data transmission begins. The network provides IPSec information (including UL/DL SPI) in advance through dedicated signaling. This preliminary exchange allows UDP/TCP encapsulation to be enabled without requiring additional signaling overhead during subsequent data transmissions, as the encapsulation rules are pre-configured.
3Reliability
If UL SPI is retrieved from IPSec host, then end-to-end encapsulation is supported, but the mechanism for retrieving and synchronizing IPSec information adds system complexity
Solution Approach 1:
The patent uses the network as an intermediary to manage IPSec information synchronization. Instead of the UE directly retrieving UL SPI from the IPSec host (which would require complex direct communication and synchronization mechanisms), the network acts as an intermediary that provides the necessary IPSec information through dedicated signaling. This approach ensures reliable end-to-end encapsulation support while keeping the UE's IPSec information management relatively simple.
Data Source
AI summary
An apparatus configured to negotiate with an Internet Security Protocol (IPSec) host device to determine whether both a user equipment (UE) and the IPsec host device are capable of supporting synchronization of IPSec information and when both the UE and the IPsec host device are capable of supporting synchronization of IPSec information, receive IPSec information from the IPSec host device over a dedicated channel, the IPSec information being configured to support encapsulation.