ETSI TS 129 277

ETSI TS 129 277 specifies the stage 3 of the Evolved Packet System S102 interface between the MME and the 1xCS IWS to relay the 1xCS signalling messages documented in 3GPP TS 23.216 [2] and 3GPP TS 23.272 [4]. 1x CSsignalling messages are those messages that are defined for A21 interface as described in 3GPP2 A.S0008-D [3] and3GPP2 A.S0009-D [6]. The S102 interface messages shall be based on A21 messages.

The S102 interface is used to support UEs that do not transmit and receive on both the LTE and 1x radio interfacessimultaneously. S102 protocol aspects for SRVCC from E-UTRAN access to 3GPP2 1xCS is covered in thisspecification. Handling of non-voice component and protocol aspects for SRVCC from 3GPP2 1xCS to E-UTRANdirection is not specified in this release.

The S102 interface is also used to support CS fallback to 1xRTT procedures from E-UTRAN access to CDMA 1x RTTCS domain and to support SMS over S102 with the CDMA 1xRTT CS domain through support of registration over EPSprocedures as specified in 3GPP TS 23.272[4].

Edition:

14.0.0

Published:

04/01/2017

Number of Pages:

13

File Size:

1 file , 96 KB

Note:

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