I went to see climbing the front line of the LTE countermeasure to make the net possible with smaho at Mt. Fuji

In July of the year, mountain opening is held at Mt. Fuji, and many tourists and climbers visit Mt. Fuji from around the world as well as from Japan. If a lot of people gather, the communication demand of smartphones and mobile phones that most people now have will also increase. This time, how KDDI is implementing the area countermeasure which is carried out at mountain climbing road and mountain top of Mt. Fuji, what kind of efforts are being done for environmental preservation, is actually on my feet I decided to see the reality while aiming for the summit.

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Before we start climbing Mt. Fuji, Shizuoka side ·Gotemba routeIt becomes the base ofGotemba mouth new fifth consecutive eyesThe "Mt. FUJI TRAIL STATION(Mount Fuji Trail Station:Treste) "We stopped by. In Treste which is open only at the Gotemba mouth new fifth gym which is the only climbing mouth of Mt. Fuji where there is no single car regulation, we purchase information on mountains and it is useful for climbingchocolateYamobile batteryIt is said that we are implementing a campaign that can get you.


Treste is open during the period of mountain opening of Mt. Fuji, so you can use it from 10th July (Fri) to 6th September (Sunday) in 2015.


Buildings using several huts and containers are installed in the area.


In GotembaWarashi FestivalAnd a huge straw sandwich used for mikoshi was also exhibited.


◆ Pay for "Mt. Fuji Conservation Cooperation Fund" and get a mobile battery that can be used for smartphone
At Treste, at the windowMt. Fuji Conservation Cooperation FundAs a target for those who paid 1000 yen as KDDI, we distribute mobile batteries that can be used for charging smartphones and others. this is,To leave a beautiful Mt. Fuji in future generationsIt is a system that has been implemented since 2014 with the aim of preserving the environment of Mt. Fuji and taking safety measures for climbers under the slogan of


That's why I paid 1,000 yen at the window and I will receive receipts, guide books, badges etc. from the staff.


What I got was "cloth sticker and can badge that proves payment for conservation cooperation payment, and" guide book on configuration assets "which will also be a stamp book.


In the guidebook, it is possible to push the stamp placed at each point.


And when we pass the received receipt at the window of Treste ......


Get dry battery type mobile battery and connection cable. Because it is a battery type, it is possible to charge anytime if you insert even new batteries, especially if you are an iPhone user you can get lightning cable in exchange for cooperation money so attractive husband.


Furthermore, for members of au Smart Pass, at the windowGhana chocolateBecause campaign that can get is also carried out, it seems that it is better for the person to visit.


◆ "TRAVEL JAPAN Wi-Fi" service
As I registered as a World Cultural Heritage Site, I can see many visitors from overseas at Mt. Fuji. For convenience of such visitors to the Tresto and Mt. Fuji can use free Wi-Fi by using a special applicationTRAVEL JAPAN Wi-FiIs being offered.


If you have been to overseas trips, there are many people who feel and feel the appreciate of wireless Wi-Fi at their destination. TRAVEL JAPAN Wi-Fi is a service for foreigners visiting Japan, which is inevitably unfamiliar for Japanese users, but in the sense that it provides the appreciation that is felt at the travel destination for visitors to Japan It seems that it can be called a service that boosts appeal.


The advantage of using a special application is that you can easily connect 240,000 Wi-Fi spots throughout Japan to free without having to worry about setting up troublesome SSID etc. for free. In addition, the application also has the function to display sightseeing information around the spot as follows, so it will be useful for information gathering as well. Of course, even users who say "I will search for information on their own," there is no disadvantage because if you connect to Wi-Fi with an application you can use the net at will, you can use it.


In addition, it is necessary to install a special application for use of TRAVEL JAPAN Wi-Fi, and in part it points out a contradiction that "Internet connection is necessary first to drop an application!" It is also a fact that there are voices to do. But even in such a case, since Treste distributes "Wi2 300 One Time (1 Day)" ticket which can use Wi - Fi spot more than 200,000 nationwide nationwide free of charge, first of all Wi2 After using Wi-Fi and getting the application, you can use it like switching to TRAVEL JAPAN Wi-Fi.


Although it can not be denied that there is a side that requires a little time because it is necessary to set it in two stages, it seems to be an effort to adjust the convenience of visiting customers.


As I was listening to the explanation, as visiting customers stopped by Treste as if they had bought in advance, I started thinking about the photo without thinking because I started signing up for TRAVEL JAPAN Wi - Fi. It was like everyone who visited Japan from Middle East.


I will talk about Mr. Yamaguchi of Mt. Fuji Tourism Gotemba Executive Committee and Mr. Nakamura of Tourism Section of Gotemba City on the aim of setting this Treste. This Treste started from 2013, and initially it has been increasing its content year by year since there were only parking lots, toilets and shops. It seems that Treste is working mainly on the four pillars of "safety awareness", "information dissemination", "environmental preservation" and "educational activities" and climbing hospitality hospitality.


In Treste, a water field to wash hands, feet, accessories etc. of people who have descended down ......


An observation deck is installed on a building using a container.


It was unfortunate weather on that day, but on a sunny day it seems that we can overlook the Hakone direction.


◆ Start Mt. Fuji climb · Start from Fujinomiya mouth fifth consecutive eyes
In this climbing, we set up a route to start from the Fujinomiya mouth fifth gym on the Shizuoka side. I moved by car from Treste to Fujinomiya mouth.


In preparation for the start of mountain climbing, we start at the cafeteria where we start at the start.


On the stairs to get off to the dining room, a guide plate combining branches of trees.


I ordered cooking at the counter. Menu such as udon noodles, soba, curry, hamburger etc. is prepared.


This time, rice towering like Mt. FujiMt. Fuji curry"(1100 yen including tax) I ordered. It is an orthodox curry which does not take a strange feeling, and it stores energy first.


At the window, there was a repeater to amplify the KDDI radio wave arriving outdoors and relay it indoors.


At the start of climbing, for communication between membersLTE transceiverHas been distributed. Unlike conventional transceivers where terminals are directly connected by radio waves, this terminal, which has a different structure from mobile phones, is an IP transceiver using KDDI's 4 G LTE network. With this, it is possible to talk anywhere in Japan without going through the net if there is only an LTE network. Also, simultaneous calling is possible, no need to apply for license or acquisition of wireless stations, and it is also possible to talk with smartphone applications and IP business phones. How to use is the same as a general transceiver, and it is designed to transmit only while pressing the switch next to the main unit.


Drinks of vending machines may be unavoidable if the 500 ml PET bottle is 300 yen and the small size can juice is 160 yen, which is higher than at the foot.


In addition to calorie mate to take nutrition, sweets etc. are sold.


When I was ready, I finally started climbing. The fifth Fujinomiya mouth is said to be a relatively easy-to-climb route, as the starting point has the highest altitude of 2400 meters.


Start climbing the mountain climbing route wrapped in fog. From here to the mountaintop, the climbing starts at about 1370 meters.


Petroleum is rolling around there like Mt. Fuji which is still active volcano. The colors of soil and stone are also increasing black and red brown.


Soon, I arrived at the mountain hut "Unkai Sou". At the start of the first break point, we will adjust the clothes and the backing Zuck.


When checking the radio wave condition of the smartphone in front of Unshuosou, 4 G pictograph is displayed on the screen. KDDI said that in order to prepare the LTE environment with four climbing routes, at the foot of Mt. Fuji, a base station dedicated to climbing roads was set up to implement area countermeasures. We set up a huge planar antenna with a total length of about 3 meters towards the mountain path, aiming at a climbing road 5 km - 12 km ahead with a sharp directivity from the foot.


Here, I will listen to interesting stories about the radio waves of smartphones. Although it seems no problem to irradiate strong radio waves from the base station towards the climbing road, it is difficult to deliver radio waves to base stations far away from smart phones with limited power. Asking if it is skipping radio waves to the base stations a few kilometers in what way, in fact the directivity of the strong side of the antenna becomes stronger on the receiving side so that it is possible to pick up radio waves from afar It is said that. Therefore, it seems that it is possible to receive a radio wave that is not so strong emitted from a smartphone located several kilometers away, without problems with a remote antenna.

I will hurry down the road leaving the uncle san. The area around this is still relatively gradual, and it is possible to climb with a hiking mood.


In about 30 minutes to climb, I arrived at "Hohnaga crater" at an altitude of about 2,700 meters. Edo periodHori Erenaki eruptionIn the crater made of the scale, the scenery full of scale feeling spreads, the level you want to see with your own eyes once by all means. From here onward, we will go up the "Dog" shaped route seen on the slope on the other side and aim at the point called "top horseback" at the top.


In this case, we conducted a reception test of emergency bulletin mail using the test machine brought by KDDI. You can see that there is a system that allows you to receive information as soon as you need an emergency, such as an earthquake or volcanic eruption information.


Of course LTE radio waves are being received without problems. After that, while climbing Horinaga crater there was a place where the sensitivity fell momentarily, but otherwise I could use the smartphone without problems.


By saying that the LTE network can be used, of course, the LTE transceiver can also be used without problems. Where I wrote "I can talk to those far away!", But if you think carefully, using the LTE (IP) transceiver makes it possible to talk to most areas of Japan so it was commonplace.


It is a mountain climb that started from Fujinomiya mouth, but this time it leads to Gotemba routePrince RouteIt goes through.


I often break after I reached Prince Route. We eat chocolate which we got at Treste and supply nutrition.


Measure the pulse with Apple Watch at the same time. The pulse rate is 142, and it is a high numerical value as expected. After this, when we measured at the harshest climbing point, we had reached a high numerical value of about 160.


Suddenly I looked into my eyes and saw Kawaguchi lake from the end of the clouds.


After joining the Gotemba route, I will continue climbing aiming at the summit. As the altitude has been rising, plants on the slope have become less visible.


Climb reaching altitude 3000 meters in about 3 hours.


When coming to this area, a mountain hut built on the route "Warashikan"The signboard will entice climbers. Seduction that you can eat 'Suka' in 30 minutes ... ...


I was invited to say "Why do not you have some tea?" With freshly baked waffles ......


A word that seems to be tasty for anything, such as "buried gold dorayaki" limited to the Warabikan, creates a wavy attack.


Soon, I arrived at the seventh inning.


The mountain hut located here was closed.


Suddenly in the seventh conspicuous eyes, there was magnificent view that the shadow of Mt. Fuji was reflected on the sea of ​​clouds spreading under the eyes. At this time it was around 17:45 in the evening, but the moment when the tension rose as the time, the condition of the sea of ​​clouds, the scenery that can not be seen unless all of the weather is well aligned.


Finally I reached the Warabikan.


I can not seem to tempt the signboard, I order cup noodles (800 yen) and watermelon (300 yen).


Certainly the price is not cheap, but the cup noodles that can eat at the altitude of 3050 meters are also exceptional. The soup is soaked in a tired body. In addition, boiling points of hot water will be lower from high altitude, so cooking requires 5 minutes longer than usual 3 minutes.


Sweet watermelon has healed tiredness as well.


The LTE state of the so-called Bali Bali is secured even at this point, and there is no problem at all in viewing YouTube with smooth image quality as well as e-mail and SNS, if it is worrisome.


Immediately after leaving the Warabikan, a mountain hut serving as the accommodation of the day "Sandikan"Arrival in.


Before entering the hut, I will pay the sand on my pants and climbing shoes with a brush.


In the inside of the hut, the cot was made of wood, and before that the hall spanning the meal space spread.


The bed is a type with two tiers in the upper and lower side, and it is a type that people sleep together.


The altitude exceeds 3000 meters and it is completely cold in the middle of the night at night. Although it was July, charcoal fire was burned in the hut.


The toilet installed is a bio-toilet that decomposes feces by the action of microorganisms. To use it we pay 300 yen once, but guests can use it free of charge.


When I look up to the sky, there is even more wonderful scenery than before. I could see the magnificent sight of the earth level that the shadow of Mt. Fuji is projected to the Earth's atmosphere spreading beyond the horizon. The shadow disappeared in a few minutes afterwards, so it was very lucky to be able to shoot this scene.


After having taken an eye on the scenery, we start dinner. Guests at Sandikan can relax and eat as much curry as you like.


You will have a curry like a model that looks just like meals.


The curry of sweetness heals tiredness, but I feel that he will be able to feed himself better in preparation for the mountaintop attack of tomorrow. On this day we ate 2 cups of curry and dinner was completed. There were also some fiercers who lightly flattened the third cup depending on the person.


It will be dark around the end of dinner. When I looked at the western Shizuoka area, a very beautiful night view was visible from the clouds break.


Even if you see the Odawara direction to the east side of the opposite side, the night view is spreading. The light of the city leaking from under the sea of ​​clouds in the foreground was very fantastic.


And at 9 o'clock the mountain hut turned off. The next day we will start attacking from the early morning at around 1:30 am with the target of the mountaintop as the target.


◆ Start a mountaintop attack · Will you worship the light
Around 1:30 am, we started preparing for the climb in the dark. Temperature is one digit and wind is available so the sensible temperature can be said to be below freezing level. Anyway, it is very cold, unless you put on a thin down jacket etc in clothes you will definitely get cold.


The measures against cold weather were applied, and the preparation was completed by wearing the LED light on the head.


Because it will be the summit in darkness, LTE transceiver for communication is indispensable.


At 2 am, we start attacking towards the top.


Only visible range of LED light shines. Take care and walk forward while checking the scaffolding.


In about 40 minutes, I arrived at the mountain hut "Akawa Hachihinkan".


The altitude is 3290 meters. It is seven ninety nine shrunk which does not reach the eighth line.


After a while, I will climb again. When it exceeds 3000 meters, the air becomes thin, and breathing becomes hard. While enduring the dull pain felt at the bottom of the lungs, I will step forward anyway with a slow gait while avoiding the altitude so as not to suffer from altitude sickness.


It reached the eighth grade at 3:09 in the morning.


The rocks that made the rugged rocks became more and more.


The weather which was good at departure gradually fogged many fog. When I looked at the back, there was a sight that looked like an exploration of an unknown planet.


When around 4:00 am it gradually became bright. The expected light hour of this day is around 4:30. It is a calculation that does not make it at the last minute. Anyway, are you going to worship the light in this fog? Is it?


A sign showing the top of the mountain that we see occasionally. I have to hurry ... ....


However, there is neither the original nor the child if it is impossible to battle and get rid of it. Proceed anyway while gnawing the chocolate I got the day before.


As the field of vision gradually opens ...


The torii has come to light! That is a bad goal point over there.


People who do commemorative pictures. At this point the time is at 4:35. Although the scheduled time for the lighting has been passed for a while, ....


Anyway, I got through the torii and reached the summit. But here we can not see the light, so we will move to the nearby spot.


Move to the front of "Top Fuji House" where many people gather. Has been able to see the light on a small rock above this before ....


Unfortunately, the fog is white. Naturally there is no choice but to give up if there is no choice but to persevere with others.


After 5 AM, the operation of the top Fuji pavilion began.


The inside is crowded with people who take a break and those who buy warm items.


We also found a souvenir corner.


It is a matrix at the mouth of the meal.


Cup noodles, cup udon, soup with black tea, miso soup etc. There was a menu to warm the cold body.


A lot of cup noodles stacked in the kitchen. I will give climbers a temptation of silence.


Even at the summit, KDDI's LTE covered the area without problems.


After a break, when you go outside the building, the sun is seen from the foggy weather! I decided that I saw Kagamitsu (like something) and aim for "Yamaguchiya" at the top of the Fujiyoshida route, the next destination.


When I aimed for Yamaguchiya on the other side by advancing "bowl tour around" around the crater at the top of Mt. Fuji, the mist that was standing for that moment has come out.


It was not long enough that the surroundings were clear, the skirts and the sea of ​​clouds spread widely under the eyes.


I instantly shoot with the panorama function of the iPhone. Perhaps there was a landscape only seen here in Japan, like between the ground and outer space.


About 30 minutes to walk I arrived at the top of the Fujiyoshida route. The appearance of a large hut of a large scale has come to light.


On the way, you can see the highest point of Mt. Fuji on the other side of the crater, "Kendo Peak". A figure of a very small person can be seen in places on the slope, and it is likely to realize the huge magnificence of Mt. Fuji coupled with the striking cliffs that might be several hundred meters high.


◆ I looked at the actual situation of countermeasures against LTE area at the summit
Arrived at the mountain hut area on the summit of the Fujiyoshida route. On the right hand side of the image is a large panoramic landscape from the top.


There was a bulldozer carrying goods etc. where I entered the area. A bulldozer equipped with a crawler (caterpillar) and climbing up to an inclination of 45 degrees at the maximum from the foot for an hour is an important means of transportation, and if transportation fees are charged according to the weight of the goods Thing. One of the reasons that the price of food on the mountain is high is Kore.


There was a Yamaguchiya in the destination in the summit area. Although I have visited several purposes, first of all it is my first goal ......


I decided to eat ramen. The price is 900 yen.


As you can tell from the appearance, the taste was orthodox Miso ramen. It seems that it is not so special that it is seasoned except that menma, wakame and green onions are topped, but somehow I feel special food to eat at the summit.


Another important purpose of visiting Yamaguchiya was to visit the mountaintop area measures, such as equipment for 4 G LTE installed by KDDI. There are two kinds of routes for delivering radio waves, one of which is to skip radio waves with strong directivity from the foot of Mt. Fuji like the following picture, once the radio waves received by the receiving antenna are relayed once From the transmit antenna for the mountain top area set on the roof from over to cover the area.


And another way is to deliver radio waves to the sword peak with radio waves with a high frequency of 26 GHz band different from ordinary radio waves, and then to fly again to the summit of the Fujiyoshida route so that communication suitable for the increased needs It seems to have secured capacity.


In this way, the two kinds of radio waves received from the foot enter the base station equipment dedicated to the summit installed in the store of Yamaguchiya. KDDI also combines radio waves of 2 GHz band and 800 MHz band at Mt. Fuji peakCarrier aggregationIn addition to providing measures to mountaintop areas, radio waves for Wi - Fi are emitted from the antenna placed on equipment racks to cover the area inside the building.


The antenna installed on the roof looks like this. It was set to emit radio waves towards the area where many people around the mountain hut were gathered from the edge of the building. Since this area is one of the "grand light spots" even at Mt. Fuji, it can be seen that other communication companies' antennas are also installed and priority area countermeasures are being carried out.


When measuring the speed at the plaza in Yamaguchiya 's shop, it is surprising that the speed which does not differ from the lower bound of 80 Mbps goes down. There were cases in which other participants recorded the speed of 120 Mbps.


Also at the summit, the environment of "TRAVEL JAPAN Wi - Fi" mentioned at the beginning of the article has been arranged and it is possible to use free Wi - Fi like this way.


Of course, there is no problem in receiving emergency bulletin mail sent when a disaster occurs. In the event of a disaster that is expected to occur in the future, you can see that the system is ready for obtaining information immediately.


Shimoyama is always waiting after climbing. After spending time at the summit, we will go down the mountain aiming at the climbing mouth at the foot over a few hours. On the downKurodo routeIt passed.


A part of the Suzunin Route will go through the same road as the bulldozer. I passed several bulls that climbed the slope with plenty of goods, staff and dudes.


While catching a break at a mountain hut in the middle of the route, I aim at the foot.


I tried speed measurement several times even during the route, but it was able to secure almost 30 Mbps or more. A moment when I realized that it was a wonderful era when high speed communication was secured even on such a mountain.


On the way down Shimoyama, there were some memorial monuments of those who were distressed in Mount Fuji. There are many people who offer bells like this, but it seems that the true intention of the officials is that they really do not want to leave anything.


On the way down Shimoyama,Google Street ViewI also encountered the camera. Because there are people who do this work, I wonder if I can use Street View, I think my head is going down on the steep slope with a heavy looking equipment, but indeed I am wrapped in fog and a white landscape is usable I can not help it worried about becoming.


Keeping down the slope I came back to the altitude of 2000 meters for about 5 hours. The lower part of the Sukuro route is a forest zone where the trees grow gently and it seems that it properly blocks summer sunlight. It is one of the charms that Mt. Fuji can enjoy various sights like this.


Returning to the old Mitake shrine with torii, Shimoyama almost finished.


At the end, if you go down a light paved road ......


Finally Shimoyama's goal. I smashed at the tea room at the entrance to the mountain path and I felt the feeling of Mt. Fuji climbing.


Actually, since the editorial staff who participated in the climbing this time was a climbing beginner, it was a climb of endless worry until the end whether it could reach the top of the mountain clearly, but thanks to equipped equipment and experienced accompanying persons, I was able to finish my journey. Even if I looked up from the bottom I can not see the feel of the ground feet at the feet during climbing or when I look back on the view from the summit,Because there is a mountain thereEven if the word "sorry" was actually a mistranslation, it was Mt. Fuji climbing that made me realize that the charm of the mountain is summarized in the word.

Also, 300 thousand climbers are visiting Mt. Fuji every year. For climbing this time, due to the convenience of such mountaineers, communication companies such as KDDI have also understood the actual situation that measures such as adding base stations and transmitting radio waves from the foot are taken. Registered as World Cultural Heritage,Subject of faith and source of artFuji climbing experience that remained in my heart that it is necessary for everyone to keep in mind, especially climbers, in order to leave beautiful Mt. Fuji which became the heritage of human beings in posterity.