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Simplified X1 Protocol [1]

Simplified X1 Protocol [1]. X1 header always includes both MS/AT ID (RATI:ATI24 or UATI: ATI24) Target node ID (HRPD Sector ID) X1 header has Type indicator (T) T=0: Data Only Data is included T=1: Control Only Control messages are included SFF requirement

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Simplified X1 Protocol [1]

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  1. Simplified X1 Protocol [1] • X1 header always includes both • MS/AT ID (RATI:ATI24 or UATI: ATI24) • Target node ID (HRPD Sector ID) • X1 header has Type indicator (T) • T=0: Data • Only Data is included • T=1: Control • Only Control messages are included • SFF requirement • Looks up IP address mapping table with MS/AT ID or Target Node ID in X1 header or A23 header, • Forwards the packets with new source and destination IP address/port

  2. Simplified X1 Protocol [2] • X1 Header • T( Type) • T=0: Data • T=1: Control • MS/AT ID Type • ‘000’: Reserved • ‘001’: HRPD RATI • ’010’: HRPD UATI • ‘011’: (Reserved for WiMAX MS identifier) • ‘100’ - ‘111’: Reserved • Target Node ID Type • ‘000’: Reserved • ‘001’: HRPD AN SectorID • ‘011’: (Reserved for WiMAX BS identifier) • ‘100’ - ‘111’: Reserved

  3. Simplified X1 Protocol [3] • X1 Control Messages • X1 Control Message Types • Error Notification Message Format • Error Cause Values

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