Thursday, 23 November 2017

ZTE channel model proposal preliminarily accepted in ITU-R WP 5D

ZTE
Friday 04 November 16

ZTE Corporation, a major international provider of telecommunications, enterprise and consumer technology solutions for the Mobile Internet, today announced that its map-based hybrid channel model has been preliminarily accepted by the IMT-2020 technology evaluation report. Channel model plays a fundamental role in both physical layer design and the evaluation of technology. The inclusion of the channel model proposed by ZTE within the ITU IMT-2020 Evaluation Report at the ITU-R WP5D#25 meeting in Geneva demonstrates the willingness for collaboration among industry stakeholders to further facilitate the 5G standardisation process in terms of radio propagation characteristics…

ZTE Corporation, a major international provider of telecommunications, enterprise and consumer technology solutions for the Mobile Internet, today announced that its map-based hybrid channel model has been preliminarily accepted by the IMT-2020 technology evaluation report.

Channel model plays a fundamental role in both physical layer design and the evaluation of technology. The inclusion of the channel model proposed by ZTE within the ITU IMT-2020 Evaluation Report at the ITU-R WP5D#25 meeting in Geneva demonstrates the willingness for collaboration among industry stakeholders to further facilitate the 5G standardisation process in terms of radio propagation characteristics, in which ZTE's research and development (R&D) capabilities and technical strength are devoted to.

The ITU Radiocommunication Sector (ITU-R), a specialised agency of the United Nations , plays a vital role in the global management of the radio-frequency spectrum, taking account of all parties concerned to create the conditions for the harmonised development and efficient operation of existing and new radiocommunication systems (5G).

The global IMT-2020 (5G) technology evaluation will commence in 2018, in accordance with the IMT-2020 (5G) work plan published by the ITU-R. Before the evaluation, the ITU-R needs to define key technical indexes and determine the evaluation methodology. Channel model identification is essential to this process and directly affects the evaluation results, as well as the ITU-R's acceptance of new 5G air interface technologies in the future.

ZTE has engaged in various research activities on channel modelling, by collaborating with universities, and undertaking extensive measurement campaigns and optimising ray-tracing tools. The digital map-based hybrid channel model preliminarily accepted by ITU-R WP 5D was developed by ZTE taking into account the 5G requirements of large capacity, high density and high frequency, in conjunction with those of key application scenarios. In this model, wireless channel propagation is emulated based on 3D digital map and physical electromagnetic propagation theories. Both the ray-tracing-based deterministic and measurement-based statistical modelling methodologies are used to better reflect the electromagnetic propagation features in terms of specular and diffuse components in the actual propagation environments. This hybrid channel model supports large bandwidth and arrays, and provides the consistency requirements between high and low frequency domains, spatial consistency and dual mobility, effectively supporting the evaluation and simulation of 5G air interface technologies.

A number of channel model proposals from 11 different countries were submitted to WP5D#25. After lengthy and constructive discussion, the hybrid channel model proposed by ZTE was accepted as a reference model in the IMT-2020 Evolution Report. The hybrid channel model recognised by the China IMT-2020 (5G) Promotion Group, and adopted by the 3rd Generation Partnership Project (3GPP), has been recommended by China to the ITU-R IMT-2020 Evaluation Report.

Mr. Xu Huijun, CTO of ZTE Corporation, said: "I really appreciate the excellent collaboration and alignment among industrial players, as well as the outstanding work done by my colleagues on this channel modelling aspect. An old Chinese saying goes, ‘if you want to go fast, walk alone; and if you want to go far, walk together.’ We are looking forward to partnering with players from across the industry to promote the 5G standardisation process and build a bright future for globally harmonized 5G standards."

ZTE is a major contributor and participant in the research of global 5G technologies and standards. The company actively participates in the discussions for the establishment of 5G standards and has now joined more than 40 standardisation organisations, unions and forums. It is a member of many international standard organisations and industrial unions including the ITU, 3GPP, IEEE, NGMN and 5GMF.


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