1xBTS 1xBTS

Standards Compliance

3GPP2 and IETF specifications referenced in the implementation.

3GPP2 CDMA2000 (Primary)

StandardTitleCoverage
C.S0002-EPhysical Layer Standard for CDMA2000 Spread Spectrum SystemsRC1, RC2, RC3 forward/reverse, spreading, coding, interleaving
C.S0003-EMedium Access Control (MAC) StandardMuxPDU, rate decision, signaling
C.S0004-ESignaling Link Access Control (LAC) StandardARQ, MSG_SEQ/ACK_SEQ, CRC-30
C.S0005-EUpper Layer (Layer 3) Signaling StandardRegistration, origination, paging, service negotiation, orders
C.S0016-DOver-the-Air Service Provisioning*228 NAM / MMS / Home System Tag / SSPR PRL read-back and download
C.S0017-005-AData Service Options: SO7Basic PPP over RC1
C.S0017-012-AData Service Options: SO33High-rate PPP over RC3
C.S0017-010-ARadio Link Protocol Type 3RLP3 for SO33
A.S0003-AAbis BTS-BSC Interfacetarget for BTS/BSC control messages and bearer payload families
A.S0001IOS / A1 Interfacetarget for BSC/MSC call-control seam
A.S0014-DIOS A2p Bearer Interfaceper-circuit RTP/UDP QCELP/EVRC voice bearer reference

3GPP2 Network Interfaces

StandardTitleCoverage
A.S0017-DInteroperability Standard for A10/A11packet data control/bearer reference for PCF/PDSN
X.S0011-003-ECDMA2000 Wireless IP Network StandardFOU tunneling reference
IS-2001Signaling transport referenceA1 signaling transport profile used by the current architecture

3GPP2 EV-DO / HRPD

StandardTitleCoverage
C.S0024-100-CIntroduction to cdma2000 High Rate Packet Data Air InterfaceHRPD layer model and terminology
C.S0024-200-CPhysical Layer for cdma2000 High Rate Packet Data Air InterfaceHRPD forward/reverse slots, Pilot, Control, Access, Traffic, DRC, ACK, RRI, coding
C.S0024-300-CMedium Access Control Layer for cdma2000 High Rate Packet Data Air InterfaceControl Channel MAC, Access Channel MAC, Forward/Reverse Traffic MAC, RTCAck, H-ARQ
C.S0024-400-CConnection and Security Layers for cdma2000 High Rate Packet Data Air InterfaceIdle/connected state, RouteUpdate, TrafficChannelAssignment, TrafficChannelComplete
C.S0024-500-CApplication, Stream and Session Layers for cdma2000 High Rate Packet Data Air InterfaceUATI, session management, Default Signaling, Default Packet Application, stream framing
A.S0007-AIOS for High Rate Packet Data in AN InterfacesHRPD AN/PCF session and mobility boundaries
A.S0008-CIOS for High Rate Packet Data A8/A9/A10/A11 InterfacesHRPD PCF/PDSN control and keyed-GRE bearer path
A.S0019-AInteroperability Specification for 1x and HRPDA21-style hybrid access terminal coordination and cross-paging reference

IS-95 Legacy

StandardTitleCoverage
IS-95AMobile Station–Base Station Compatibility StandardRC1 baseline, access channel, registration
IS-95BWideband Spread Spectrum Digital CellularRC2 and Rate Set 2 voice reference
TIA-96Basic Variable Rate VoiceSO1 QCELP 8K voice codec
TIA-73313K Variable Rate VoiceSO32768 QCELP 13K voice codec
IS-127Enhanced Variable Rate Codec (EVRC)Voice codec

IETF RFCs

RFCTitleCoverage
RFC 1661The Point-to-Point Protocol (PPP)LCP negotiation, state machine
RFC 1662PPP in HDLC-like FramingHDLC byte stuffing, FCS
RFC 1332PPP Internet Protocol Control Protocol (IPCP)IP address negotiation
RFC 3558RTP Payload Format for EVRC and SMVEVRC RTP payload format used by the A2p bearer

Notes

Physical layer support focuses on SR1 (1.2288 Mcps) with RC1, RC2, and RC3. Layer 3 covers the common message types for registration, call setup, SMS, and data. RLP implements Type 1 (SO7) and Type 3 (SO33). PPP covers LCP and IPCP for CDMA packet data. Standards-defined network interfaces such as Abis, A1, A2p, A8/A9, and A10/A11 stay separate from management gRPC. Packet data uses the packet service API, configured A10 bearer delivery, and authenticated A11 signaling between the PCF and PDSN.