| 汽车内的宽带免提通信 |
ITU-T P.1110建议书描述了车载窄带免提通信的性能要求和测试方法。本建议书包括：– 内置免提系统；– 售后免提车用配件；– 有绳头戴式话机；以及– 无线头戴式话机；这些将用于行驶中的车载通信。本建议书涉及全套系统以及免提麦克风和用于免提系统与移动网络互连的短距离无线传输连接电话子系统的测试。在测试方面，描述了测试的设置和建议的环境条件。本建议书描述的方法、分析和性能参数基于ITU-T P.50、ITU-T P.501、ITU-T P.502、ITU-T P.340和ITU-T P.380建议书定义的测试信号和测试程序。
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| Citation: |
https://handle.itu.int/11.1002/1000/10659 |
| Series title: |
P series: Telephone transmission quality, telephone installations, local line networks
P.1100-P.1199: Communications involving vehicles |
| Approval date: |
2009-12-14 |
| Provisional name: | P.CarHFTWB |
| Approval process: | AAP |
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Status: |
Superseded |
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Maintenance responsibility: |
ITU-T Study Group 12 |
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Further details: |
Patent statement(s)
Development history
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ITU-T Supplement
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Title
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Status
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Summary
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Table of contents
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Download
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P Suppl. 10 (11/1988)
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Considerations relating to transmission characteristics for analogue handset telephones
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In force
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-
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here
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here
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P Suppl. 16 (11/1988)
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Guidelines for placement of microphones and loudspeakers in telephone conference rooms and for group audio terminals (GATs)
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In force
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-
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here
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here
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P Suppl. 20 (03/1993)
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Examples of measurements of handset receive-frequency responses: dependence on earcap leakage losses
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In force
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-
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here
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here
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P Suppl. 23 (02/1998)
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ITU-T coded-speech database
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In force
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here
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here
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here
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P Suppl. 24 (10/2005)
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Parameters describing the interaction with spoken dialogue systems
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In force
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here
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here
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here
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P Suppl. 25 (01/2011)
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Parameters describing the interaction with multimodal dialogue systems
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In force
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here
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here
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here
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P Suppl. 26 (09/2017)
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Scenarios for the subjective evaluation of audio and audiovisual multiparty telemeeting quality
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In force
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here
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here
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here
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P Suppl. 28 (09/2020)
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Considerations for the development of new QoS and QoE related objective models to be embedded in Recommendations prepared by ITU-T Study Group 12
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In force
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here
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here
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here
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