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Taipei: 4G International Forum

Still related to 4G Mobile Technology, this month I was invited to give a presentation in the 4G International Forum, held at the Sheraton Hotel, Taipei. I found it interesting and challenging: it is a rare opportunity for me to give presentations in the official forums abroad, in a cutting-edge topic that is still a mainstream conversations in the telecommunications technology and business world.

Taiwan does not have visa-free agreement with Indonesia. So first I had to apply for the visa. Luckily, it was not a complicated process. Indeed, there is no Taiwan embassy or consulate here in Jakarta. But there is a Taiwan trade office in Artha Graha Building, where we can apply for Taiwan visa. And there, we’d find very friendly officers serving our visa process. All it requires is a letter of recommendation from the organiser, another one from the office, a document called “Kartu Keluarga” :), two photos, and a fee of about US$ 50.

I had sent my paper at the end of June. Accommodation at the Sheraton Hotel is provided by the event organiser. For transportation, initially I chose Garuda Indonesia (GIA). But presently there is no Garuda flight from Cengkareng to Taoyuan. They offered their partner airlines, though: China Airlines. However, I found their schedule did not quite fit mine. Eventually I bought online tickets at Singapore Airlines (SIA).

I departed early morning on July 11, at 4:00 o’clock from home. SIA flew me at 6:00 (all in local time), and I arrived at 8:30 at Changi. Waited a few hours in a comfortable place, then SIA flew again at 12:00, and arrived at 17:00 at Taoyuan Airport. The Forum would be held 12-13 July 2010.

Monday, July 12, the Forum began. Speakers came from universities and research institutes, developers and manufacturers (Nokia Siemens Networks, Ericsson, Alcatel Lucent, Huawei), consultancy agencies, regulators, operators, etc. I learned a lot about various aspects of 4G Mobile viewed from various sides. Fairly balanced between those discussing LTE and those choosing WiMAX, with various issues of interoperability and applications. Very enriching :). We had almost no time for a break. Coffee time and lunch time were used for networking and other conversations. If I took some time for tweeting, Mr. Tan (the organiser) would introduce me to one of the important figures (he emphasized that) to chat with. Was a real fun :). Oh, I had the time for tweeting while listening to the presentations :).

The organiser did not prepare a program for the evening. So I spent my time to visit three points in Taipei: Sun Yat Sen Memorial Hall, Taipei 101 Tower, and Chiang Kai Shek Memorial Hall. In Taipei 101, I misled myself to a bookshop (a mandatory mislead, indeed). I bought two editions of Le Petit Prince in Chinese language & letters.

Tuesday, July 13th, the forum continued. The second day was filled with a combination of presentations and panels. My turn was at 09:00 to perform my presentation, in 20 minutes. My presentation is classically titled “4G Mobile: opportunities & challenges in Indonesia” :). I began by telling the current conditions in Indonesia: how the public enthusiastically adopts the digital mobile lifestyle, proven by the rank this country get in term of Twitter, Facebook, and Opera Mini usages. Then the preparations Telkom Group has been taking for deploying 4G Mobile Network (LTE and WiMAX) through its subsidiary and divisions. Then how these issues could be matched with potentials and demands from the community developers, enthusiasts, and lifestylists (no, I did not really use such terms like these) throughout Indonesia. A bit about Indigo, IPTV, and the SDF / SDP. Then I discusses some LTE implementation model for the diverse regions and segments, with different migration models. Then to the regulation of WiMAX.

After the presentation, I had to wait another 20 minutes to listen to a presentation about the implementation of 4G, WiMAX in particular, in the Philippines. Then I had to go on stage again to join the panel discussion which took about half an hour. So I finished my tasks.

Done? Apparently not. Mr Tan told me to see a Professor from PRC (I would not write his name here, he could google it). He holds a position of considerable importance, and must be escorted by several people :). A serious discussion about regulations, about the IEEE, of the other conferences, etc. Then again another discussion with an officer from Taiwan ministry. Then I had to say goodbye to Mr Tan to leave earlier. My flight was scheduled at midday, so I could not attend the conference through to completion.

About an hour later with an orange juice at Taoyuan Airport. About seven hours later with a big mug of Chai Latte at Changi Airport. About ten hours later with a cup of Earl Grey at home. The week will be continued with IPTV implementation issues :).


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UPH Seminar on 4G Technologies

I spent two weeks discussing the infrastructures for network services & contents in Gegerkalong Campus, the Learning Centre of Telkom. On the last day, almost without break, I had to fly to Surabaya for preparing a seminar. This seminar is a part of the seminar series Opening The Gates to 4G Mobile Technology that we have carried out in Jakarta, Bandung, and Yogyakarta. In Surabaya, the seminar is hosted by Universitas Pelita Harapan (UPH Surabaya). It was held at Hotel Mercure Surabaya on 20 February 2009.

The seminar was coordinated directly by Vice Rector of UPH, Prof John Batubara. Unlike the previous seminars in this series, this one was attended by the IEEE Indonesia Section Chair, Mr Arnold Ph. Djiwatampu, and the Rector of UPH Jonathan Parapak. The presenters, in succession:

  • Arnold Ph. Djiwatampu (IEEE Indonesia Section Chair), Opening Speech
  • Jonathan Parapak (Rector of UPH), Welcome Speech
  • Muhammad Ary Murti: Introduction to the IEEE, societies, Indonesia section, chapters, membership.
  • Kuncoro Wastuwibowo (IEEE Comsoc Indonesia Chapter Chair): 4G Mobile Technologies, network & service aspects, cognitive radio, 4G candidates
  • Arif Hamdani Gunawan (IEEE Indonesia Section Vice Chair): LTE -> evolution, features, architecture
  • Prof. Dr. Dadang Gunawan: IEEE Student Branch
  • Arif Hamdani Gunawan: LTE -> radio access, OFDMA & SCFDMA, implementation plan
  • Kuncoro Wastuwibowo: WiMAX II -> evolution, features, architecture

Participants came from UPH Surabaya and other campuses around Surabaya, as well as some professionals who study the field of mobile telecommunications. And just like the way I came — i.e. with almost no break — I also had to leave Surabaya the same way. Signed the certificates, and run for the flight under a heavy rain under Surabaya sky. But I was delighted — it was a very successful seminar. Thank you, UPH Surabaya :).

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WiMAX II

On November 21st, the IEEE Comsoc Indonesia Chapter will conduct a seminar to introduce the aspects of 4G Mobile Communications. The seminar will be carried out in Horizon Hotel, Bandung. You might visit Comsoc’s website to see the detail information. I will start the discussion by exploring the necessity of the items mentioned in 4G requirements. Then we will discuss the candidates of the 4G platforms: the LTE, the UMB, and WiMAX II. But we know UMB has been revoked by Qualcomm who then chose the LTE way :). I have blogged LTE a couple times in my other blogs. But it is Arief Hamdani who will explore LTE in details then. My duty is to describe WiMAX II.

You might have known the standard IEEE 802.16e, a.k.a. the Mobile WiMAX. This is the standard for the first mobile broadband access solution that enables the convergence of mobile & fixed broadband network through a common wide-area radio access technology and flexible network architecture. The OFDMA transmission is used for both downlink and uplink. WiMAX II, or  the incoming standard IEEE 802.16m is the amendment to develop an advanced air interface to meet the requirement of ITU-R / IMT-Advanced for 4G systems. The data transfer rates will reach 1 Gb/s, but it must have full backward compatibility with existing Mobile WiMAX. The protocol stacks of WiMAX II is as follows:

WiMAX II Protocol Stack

The objectives and advantages of WiMAX II are, among others:

  • Multi hop relay architecture
  • Self configuration
  • Advanced single-user / multi-user multi antenna schemes and interference mitigation techniques
  • Enhanced multicast broadcast service
  • Increased VoIP capacity
  • Improved cell-edge user throughput
  • Support of vehicular speed (? 500 km/h)

To discuss deeper on the issue, I invite you to attend the seminar. Visit the IEEE Comsoc site :).

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