Content for TS 26.130 Word version: 18.1.0
0 Introduction
1 Scope
2 References
3 Definitions of terms, symbols and abbreviations
3.1 Terms
3.2 Symbols
3.3 Abbreviations
4 Interfaces
4.1 General
4.2 Acoustic interfaces
4.3 Electrical interfaces
5 Test setup
5.1 General
5.2 Setup for terminals
5.3 Setup of the electrical interfaces of test equipment
5.4 Accuracy of test equipment
5.5 Test signals
5.6 Environmental conditions
5.7 System simulator conditions
...
...
0 Introduction p. 6
The present document specifies requirements and test methods to verify correct implementations of the RTP payload format for 3GPP codecs in UE. The focus is on conversational services in LTE, NR and WLAN terminals when used to provide narrowband, wideband, super-wideband or fullband telephony.
1 Scope p. 7
The present document is applicable to any terminal capable of supporting narrowband, wideband, super-wideband or fullband telephony, either as a stand-alone service or as the telephony component of a multimedia service. The present document specifies requirements and test methods to verify correct implementations of the RTP payload format for 3GPP codecs in UE. The focus is on conversational services in LTE, NR and WLAN terminals when used to provide narrowband, wideband, super-wideband or fullband telephony.
2 References p. 7
The following documents contain provisions which, through reference in this text, constitute provisions of the present document.
- References are either specific (identified by date of publication, edition number, version number, etc.) or non-specific.
- For a specific reference, subsequent revisions do not apply.
- For a non-specific reference, the latest version applies. In the case of a reference to a 3GPP document (including a GSM document), a non-specific reference implicitly refers to the latest version of that document in the same Release as the present document.
[1]
TR 21.905: "Vocabulary for 3GPP Specifications".
[2]
TS 26.132: "Speech and video telephony terminal acoustic test specification".
[3]
TS 26.139: "Real-time Transport Protocol (RTP) / RTP Control Protocol (RTCP) verification procedures".
[4]
TS 34.229-1: "Internet Protocol (IP) multimedia call control protocol based on Session Initiation Protocol (SIP) and Session Description Protocol (SDP); User Equipment (UE) conformance specification; Part 1: Protocol conformance specification".
[5]
TS 34.229-2: "Internet Protocol (IP) multimedia call control protocol based on Session Initiation Protocol (SIP) and Session Description Protocol (SDP); User Equipment (UE) conformance specification; Part 2: Implementation Conformance Statement (ICS) specification".
[6]
TS 34.229-3: "Internet Protocol (IP) multimedia call control protocol based on Session Initiation Protocol (SIP) and Session Description Protocol (SDP); User Equipment (UE) conformance specification; Part 3: Abstract test suite (ATS)".
[7]
TS 34.229-5: "Internet Protocol (IP) multimedia call control protocol based on Session Initiation Protocol (SIP) and Session Description Protocol (SDP); User Equipment (UE) conformance specification; Part 5: Protocol conformance specification using 5G System (5GS)".
[8]
RFC 4867: "RTP Payload Format and File Storage Format for the Adaptive Multi-Rate (AMR) and Adaptive Multi-Rate Wideband (AMR-WB) Audio Codecs".
[9]
TS 26.445: "Codec for Enhanced Voice Services (EVS);Detailed algorithmic description".
[10]
ITU-T Recommendation P.501 (06/2015): "Test signals for use in telephonometry".
[11]
TS 26.101: "Mandatory speech codec speech processing functions; Adaptive Multi-Rate (AMR) speech codec frame structure".
[12]
TS 26.190: "Speech codec speech processing functions; Adaptive Multi-Rate - Wideband (AMR-WB) speech codec; Transcoding functions".
[13]
TS 26.114: IP Multimedia Subsystem (IMS); Multimedia telephony; Media handling and interaction.
[14]
RFC 3550: RTP: A Transport Protocol for Real-Time Applications.
[15]
ITU-T Recommendation P.863 (09/2014): "Perceptual objective listening quality assessment".
[16]
ITU-T Recommendation P.863.1 (09/2014): "Application guide for Recommendation ITU-T P.863".
3 Definitions of terms, symbols and abbreviations p. 8
3.1 Terms p. 8
For the purposes of the present document, the terms given in TR 21.905 and the following apply. A term defined in the present document takes precedence over the definition of the same term, if any, in TR 21.905.
Incoming CMR:
CMR in RTP packet received by the DUT
Receiving:
Link from test simulator to DUT
Sending:
Link from DUT to test simulator
3.2 Symbols p. 8
Void.
3.3 Abbreviations p. 8
For the purposes of the present document, the abbreviations given in TR 21.905 and the following apply. An abbreviation defined in the present document takes precedence over the definition of the same abbreviation, if any, in TR 21.905.
DUT
Device Under Test
MO
Mobile Originated
MT
Mobile Terminated
SS
System Simulator
TX
Transmission
VoNR
5G capable DUT supporting voice over NR
4 Interfaces p. 8
4.1 General p. 8
By default, electrical interfaces should be used for testing. Acoustic interfaces may be used as an alternative. The actual interfaces used in sending and receiving shall be documented.
Test cases may be implemented either by injecting specific packet information (including CMR requests) in a live call or assuming a PCAP player scenario. To define the test setup, one approach is to reuse the test setup defined in TS 26.132 (defining acoustical and electrical interfaces) where only LTE, WLAN and NR apply.
If no acoustic measurement is required, the test setup in TS 26.139 can be reused for RTP /RTCP "data injection" with either active or passive test instrument.
4.2 Acoustic interfaces p. 8
4.3 Electrical interfaces p. 9
5 Test setup p. 9
5.1 General p. 9
Similar to clause 5.1 in TS 26.139:
- The "system under test" is the device (DUT). or software to be tested
- The "test instrument" is the equipment used to place an IMS call including configurable SIP and SDP parameters and to collect test data (SDP/RTP/RTCP output from the system under test). It can extract, calculate, and store information to check requirements for all the test described in the present document.
- The "data injection" is the device or equipment used to generate RTP/RTCP data sent to the system under test.
5.2 Setup for terminals p. 9
See clause 5.2 in TS 26.132 for the setup definition (Handset UE, Headset UE, Desktop-mounted hands-free UE, Hand-held hands-free UE, Softphone UE).
5.3 Setup of the electrical interfaces of test equipment p. 9
See clause 5.2 in TS 26.132.
For receive tests, where a user operated volume control is provided, the measurements [should/shall] be carried out at the nominal setting of the volume control.
5.4 Accuracy of test equipment p. 9
5.5 Test signals p. 9
5.6 Environmental conditions p. 9
See clause 6 in TS 26.132.
For LTE, WLAN, and NR connections, an RF shielded room should be one way to achieve these requirements on block error rate and jitter. Otherwise, care should be taken with potential sources of radio interference and their impact.
5.7 System simulator conditions p. 10
Test applicability and test result may depend on the SIM card or eSIM configuration. Depending on MNC and MCC, the DUT could be set in test mode or load specific parameters. Unless otherwise stated, a new call shall be established for each test case.
