PDP Multi-Link Channel Mapping for Parallel PS Data Transmission

The patent segments the single PDP link into multiple logical channels by introducing channel identifiers (channel IDs) that can distinguish different service data flows within the same physical link. This allows parallel processing of multiple services while sharing the underlying transmission infrastructure, thereby improving productivity without proportionally increasing device complexity.

The patent makes the PDP link multi-functional by enabling it to carry multiple services simultaneously through the introduction of service identifiers and channel mapping mechanisms. A single PDP link can handle multiple services (e.g., internet access, email, messaging) in parallel by distinguishing them via channel IDs, achieving universality that improves transmission efficiency while avoiding the need for separate dedicated links for each service.

The patent introduces an intermediary layer (the channel identification and mapping mechanism) that sits between the service layer and the physical PDP link. This intermediary assigns channel IDs to different services and manages the mapping between services and links, allowing parallel transmission capabilities while abstracting away the complexity of multiple link management from the service applications.

Instead of adding more physical links (one-dimensional scaling), the patent introduces a new dimension of abstraction by adding channel identifiers and service mapping layers. This dimensional change allows multiple services to be multiplexed over the same physical link, achieving parallel transmission capability without the linear increase in link management complexity that would result from establishing separate PDP links for each service.