1x Message Encapsulation for Synchronous CDMA2000 LTE Interworking
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Solution Overview
Problem
The existing inter-working solutions between CDMA2000 1x and LTE networks face challenges in synchronously transmitting multiple 1x Layer3 messages due to limitations in the GCSNA protocol, leading to issues with message loss and retransmission during air interface transmission.
Innovation Solution
The system and method involve encapsulating multiple 1x messages into a single message, such as a GCSNA1xCircuitService message, to ensure synchronous transmission and processing, with the sending terminal (IWS) encapsulating messages like feature notifications and resource assignments in a unified format for receipt by terminals supporting multiple radio access technologies.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple 1x Layer3 messages are transmitted separately using individual GCSNA1xCircuitService messages, then each message can be transmitted independently, but the transmission complexity increases and synchronous sending cannot be guaranteed
Solution Approach 1:
The patent combines multiple 1x Layer3 messages into a single GCSNA1xCircuitService message for transmission. Instead of sending each message separately, the system aggregates multiple messages (such as feature notification messages and general paging messages) into one unified message structure, enabling synchronous transmission while reducing the complexity of managing multiple separate transmission mechanisms.
2Productivity
If multiple GCSNA1xCircuitService messages are used to carry individual 1x Layer3 messages, then message transmission is possible, but processing failures occur due to message loss and retransmission issues
Solution Approach 1:
The patent merges multiple 1x Layer3 messages into a single GCSNA1xCircuitService message to eliminate the problems of message loss and retransmission. By transmitting all required messages in one unified structure, the system ensures that either all messages are received together or none are, preventing partial reception and the subsequent processing failures that occur with separate message transmissions.
Solution Approach 2:
The patent implements a message aggregation mechanism that prepares all messages for transmission in advance within a single message structure. This beforehand cushioning approach ensures that the terminal receives a complete set of messages atomically, preventing message loss and the need for retransmission, thereby improving both reliability and processing efficiency.
3Ease of operation
If separate GCSNA1xCircuitService messages are used for each 1x Layer3 message, then message formatting is simplified, but synchronous receiving and processing cannot be guaranteed
Solution Approach 1:
The patent combines multiple 1x Layer3 messages into a single GCSNA1xCircuitService message structure that maintains clear internal formatting. The message aggregation is performed in a way that preserves the individual message formats while enabling synchronous transmission and reception. This approach eliminates synchronization time delays while maintaining ease of message formatting through the structured aggregation mechanism.
Data Source
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AI summary
The disclosure provides a system, end and method for transmitting 1x messages. The method comprises: when a sending terminal needs to send a plurality of 1 x messages to a receiving terminal through a non-1x network, carrying the plurality of 1x messages in one message. With the technical solution of the disclosure, the problem that it is unable to ensure that a plurality of 1x Layer3 messages is transmitted synchronously under the related inter-working situation and the problem of the processing time sequence of messages are solved.