How is the attribution of mobile phone signals defined? What should I do at the junction of the two provinces?

How is the attribution of mobile phone signals defined? What should I do at the junction of the two provinces? In fact, roaming charges have been cancelled now, and it is of little significance to discuss such issues. However, if roaming charges can still be used in the past, we should still pay attention. So below, I will analyze how the attribution of mobile phone signals was determined in the past.

I have been to places near neighboring provinces before, and I used Unicom cards, but I was very worried when I approached them. You are welcome to move in a province. In fact, geographically, I have never been to a neighboring province. In fact, this is very simple, because the same distance signal strength will be different.

At this time, our mobile phones will become very smart and will directly choose the party with strong signal, which is why we use other people's signals before going, which only shows that the signals in neighboring provinces are stronger.

Another way is to go to the local business hall to find out where the signal you use belongs. This is also a way to know which signal is used by the current mobile phone, but since roaming charges are cancelled, it is of little significance. So if you have any different opinions, you can leave a message below to let more people see your opinions.

This question is very interesting. There is no roaming fee now. This controversy is meaningless, but it was still significant in the past.

Under normal circumstances, the signals received by mobile phones at the junction of two provinces are not fixed. Often, if you are closer to your mobile phone, you may choose a signal base station from other provinces. I didn't say which base station must be selected at the same distance, because this ideal state is unlikely to exist in real life. After all, even if the distance is equal, the signal strength will be different. At this time, the mobile phone will choose the party with strong signal.

What shall we do after discussing this problem? Now that roaming charges are cancelled and traffic charges are unified, you don't have to think about what to do (unless you are on the border between the two countries). So how did you solve this problem in the past?

The answer is fuzzy processing.

At the beginning, many users generated a lot of roaming charges for this reason. Later, because there were more people complaining, the official knew it was unreasonable, so he adopted a vague approach. For example, when talking at the junction of province A and province B, the mobile phone in province A is likely to be connected to the signal in province B, resulting in roaming charges.

After fuzzy processing, operators will regard it as a local call, thus exempting roaming charges. Of course, this is the unique property of signal towers on the border, and there is no such treatment further inside.

Answer at the invitation of "Little Secretary Wukong"!

How is the attribution of mobile phone signals defined? What should I do at the junction of the two provinces?

A: I have received short messages from the other side at the junction of the two places before. This is because your mobile phone received a signal from someone else's site. Why is it so accurate?

1 You should know that the base station of the operator transmits signal towers all over the place, covering every corner, and this signal spreads around in a straight line like a water wave, not a parabola. The transmission frequency is the same, but the transmission power is different. The base station can measure how many meters its transmitting circumferential distance is, and the transmitting signals of the two areas partially overlap.

For example, I went to Yangzhong by boat to buy erhu. When I went to Jiangxin by boat, my mobile phone suddenly received a welcome message from Yangzhong. I was curious, too. I bought an erhu in Wuxi, Suzhou, and I was informed when I entered the city. This is the signal intersection of the two areas, because when I suddenly receive a different signal, my mobile phone will automatically switch to someone else's strong signal (the boundary strength of the signal will be weakened).

Now, driving navigation is also based on this principle. The base station displays the sanitary condition on the frequency screen of the satellite launch center. The base station receives the signal from your car. When you are away from each signal range, the navigation system will inform you according to the direction your car is driving on a certain road. If the distance is far, it will automatically switch to another base station. It also has a small dead angle and overlapping area, but it is very small, and the base station knows it.

Now the telephone bill is relatively cheap, and the price is similar if you don't go abroad (Hong Kong, Macao and Taiwan). Although you are several hundred meters away from the two neighboring provinces, don't be afraid that you won't double the charge, and the signal is 300 thousand kilometers per second. The computer on the website has been connected. Operators know these phenomena, and they will handle them well so that users will not suffer. If you used to distinguish between local and roaming, once you receive a signal from another province, try not to make a phone call. I always do this when I go out. Now the cost makes no difference, so leave him alone.

Thank you for reading!

Invited to answer questions in this industry.

Now the mobile roaming fee has been cancelled, but there was no need to consider cross-provincial or cross-city issues before.

In the past, the three major operators all had special databases, which were specially used to manage the base stations of this inter-provincial border and inter-city border. There is a special database, which records the information of provincial base stations and city boundaries, and there is a special person to maintain this database. When a new base station located at the border is connected to the network, it is necessary to report the base station information first and declare it to the cities that may be touched. For example, this base station is located at the junction of A/B cities. When the operator of A city opens a base station X, it will report the information of the base station X to the relevant personnel of the operator of B city and tell the other party: I am going to build a station at the junction.

The operator of city B will mark this base station X as a border base station.

Border base stations do not roam, which is equivalent to local calls. For example, users who belong to city B use the signal of X base station in city A to make a phone call or surf the Internet, which is not roaming, and will be charged according to local calls, so roaming charges will not be generated. And users in a city use this X base station, which is undoubtedly a local call.

The same is true for provincial border base stations, so users at the border between Shandong and Jiangsu provinces don't have to worry about any roaming charges, because they are calculated according to local calls, no matter whether you occupy the signals of base stations at the same distance from Shandong or Jiangsu provinces.

In rare cases, the database of this base station is not updated in time, and the resulting call charges may be roaming calls, which may lead to charging disputes. At this time, the operator will give you a reduction in the overcharged phone bill. However, this rarely happens. I have opened hundreds of border base stations, and none of them have missed. Hehe, this is a very small probability. If you forget the report, you will be deducted.

In short, users who cross provincial and municipal boundaries do not have to worry about roaming charges at any time. We generally set the base station on the third floor of the border as the border base station, with the isolation zone10-20km.

Today, let's learn the first vocabulary: border roaming. This word is a perfect explanation. If we are at the junction of administrative districts and there are signal towers on both sides, there will be border roaming charges because of the strength of the signal. So because this matter is easy to cause disputes, this solution is given.

Generally, roaming at the border will not charge roaming fees. That is to say, you are a user of province A, and you just use the signal of province B because the signal tower of province B is stronger at the border. In this case, you don't need to pay extra, but you still charge the telephone bill of province A. ..

However, we don't have to worry about this problem at all now: on July 20 18/day, the "traffic roaming fee" will be cancelled; 2065438+September, 2007 1 day, China Mobile, China Telecom and China Unicom completely canceled domestic long-distance and roaming charges for mobile phones (excluding Hong Kong, Macao and Taiwan).

In fact, the cancellation of roaming charges is an improvement, although it is not good for some users, because the local phone charges or traffic charges in his area may be cheaper before the cancellation, but they will be more expensive after the cancellation!

However, the cancellation of roaming charges is actually the general trend, and we don't have to worry about the old topic of "border roaming". However, when can the international roaming fee be cancelled?

I remember that in the 2G era, there was a charge for making and making phone calls, but it was cheaper to answer the phone, and there was also the saying of roaming. Moreover, in the case of roaming, the price of calling and answering the phone is much more expensive than that of the local area. Later, in the 3G era, China Unicom took the lead in reform. In its 3G package, the national tariff is uniform. When users make a phone call anywhere in China, it will be 65438+ after exceeding the time in the package.

Later, other operators began to follow up, basically adopting this package model, and the tariffs were unified nationwide. Domestic calls are free, and after calls are beyond the package, there will be no more expensive tariff problems due to roaming. Therefore, if the subject only considers the mobile phone package tariff, it doesn't matter which discount you choose, Shandong or Jiangsu.

As for the attribution of the mobile phone, it has nothing to do with where you received the signal. This depends on the city where the business hall where you open an account belongs. If you open an account in Shandong, then the attribution is Shandong. In fact, you open an account in Guangzhou, which is used in the border area of Shandong and Jiangsu, and the attribution is still in Guangzhou. In short, the user's home is determined not by the mobile phone signal you receive, but by the business hall where you open an account.

As for the border between Shandong and Jiangsu, you should apply for the number of Shandong or Jiangsu. Look at your ID card. If you are from Shandong, you can apply for Shandong. Of course, if you are a Shandong ID card, and if you live in Jiangsu now, it will be better to apply for one in Jiangsu, because mobile phones can often send broadband now. Generally speaking, broadband cannot cross provinces.

For example, if you have a mobile phone number in Shandong and live in a house in Jiangsu, then even if Shandong gives you a broadband, there is often no way to give it to you across provinces. Of course, these can be consulted with local operators in advance. After all, it depends on the relevant policies, but some places I know are not feasible.

As for whether the mobile phone signal you received is from Shandong or Jiangsu, it is easier, because each base station cell of the operator has a unique identification code, and there is no difference between the identification codes of the two cells. According to the cell identification code, the operator will know whose signal you are using and which base station cell you can go to. As for how to avoid the roaming charging problem caused by this situation in the past, operators will set the border cell as a fuzzy cell.

Assuming that there is a boundary between city A and city B, operators will set up relevant sites in the boundary area of city AB. Whether users belonging to City A or City B change between these base stations, roaming charges will not be counted. Of course, if you are not a user of City A or City B, coming to this area will still be counted as roaming.

For mobile phone users living at the junction of the two provinces, the distinction of the attribution of mobile phone numbers is quite special.

Here is a brief explanation of the attribution of mobile phone signals at the junction of the two provinces:

1, the attribution of the mobile phone number is specified when the card is opened. Each province and city has different rules to follow. Usually, the telephone area code of the province and city is added to the mobile phone number, which is the most commonly used method.

2. Each base station has its own identity, just like an ID card. With identity, it is convenient for operators to manage base stations. The number of base stations in each province and city is different, which distinguishes the ownership of base stations.

3. For the base stations at the junction of two provinces, operators will not set roaming tariff function for base stations within a few kilometers around the junction.

4. Roaming fees charged by mobile phones can be judged according to the following conditions:

(1) Whether the attribution of the mobile phone number is consistent with that of the occupied base station. If they are consistent, roaming charges will not be charged.

(2) Whether roaming charges are set for the billing function of the base station. If the base station is not equipped with roaming charging function, roaming charges will not be charged even if the mobile phone number of other provinces is occupied.

5. According to the above analysis, the determination of charging roaming fee is based on the attribution of mobile phone number and the roaming function setting of base station.

The above is a simple explanation of the basis for charging roaming charges.

This situation is called border roaming.

Border roaming means that when a mobile phone number is at the junction of two cities or two provinces, the mobile phone number may accept signals from mobile communication networks that do not belong to it. There may be additional charges such as roaming charges in the early stage, but after the roaming charges are cancelled, this situation will not have much impact on users.

Regarding the handling of border roaming charges, I have been engaged in the handling of border roaming charges. At the junction of our county and another city, users at the junction often switch signals and roam. For this part of customers, we can only solve them according to customer feedback. Ordinary users first find that their fees are extra, then call for consultation, and then we will record the user's number, and then verify whether the switching of base stations really belongs to the border roaming fee. Then the expenses will be sold back at the end of the month. This work needs to be done once a month.

After the roaming fee was abolished on 20 17 and the roaming fee was gradually abolished, this problem basically did not have much impact on users. Especially now, many packages have no roaming and long distance in the country. The most helpless situation is that you will often receive text messages: for example, you are in Shandong, but the text message you may receive is "Welcome to Jiangsu", that's all. Therefore, there is no need to be too entangled in the choice of the attribution of mobile phone numbers.

There is a boundary between provinces, and mobile phones can receive signals from two provinces. This problem has always existed.

Maybe there has been no good solution to this problem before. This kind of problem often causes complaints when moving, especially at the junction of two provinces, but generally it is which station's signal is close. However, at the same distance, the signal strength will be different. The mobile phone will directly choose the party with strong signal, which is why using other people's signals before going can only show that the signals in neighboring provinces are stronger.

Second question, there is no roaming fee now. This argument is meaningless, but it was significant in the past. When there is roaming fee, if there is mobile roaming at the junction of two provinces, first explain the situation in the business hall and ask the operator to dial your mobile phone number. In fact, this situation was still very common at this intersection at that time. But now that roaming charges have been cancelled, it is of little significance.

I wonder if readers have ever encountered such a situation? Please leave a comment below to let more people see your opinion. Thank you!

In Dongguan, I climbed Yin Ping several times. At the top of the first peak in Dongguan, I received three messages from operators: Dear customers, welcome to Hong Kong! ..... Scared me into flying mode, for fear that the phone bill would suddenly run out, and then I dared to connect the signal at the foot of the mountain.