Along with China Mobile's successful lead 5G system design, its 4G users have reached an astonishing number. At the 7th Global Mobile Broadband Forum (MBBF) held today, Li Yue, president of China Mobile, revealed that as of now, China Mobile's 4G subscribers have exceeded 500 million.
A few days ago, China Mobile announced its operating data for October 2016. The number of 4G users has reached 4,973,700, and the number is 4 billion. The order of magnitude means that almost one-third of Chinese people are China Mobile 4G users, far exceeding The sum of the other two China Telecom and China Unicom 4G users.
In terms of 4G base stations, Li Yue said that 1.4 million 4G base stations will be built by the end of this year, and 4G+ service capabilities will be upgraded through carrier aggregation and other technologies. In terms of VoLTE, by the end of this year, VoLTE will cover more than 300 cities, develop 30 million users, and launch 100 million VoLTE/CA terminals, achieving a total of 330 million units.
In order to compete for users and make a smooth transition to 5G, China's three major operators have been accelerating the pace of 4G+ network construction, especially based on the VoLTE service (ie HD voice and video call) under the network, which has become the competition of operators at this stage. focus.
Among the three major operators, China Mobile is advancing faster in VoLTE. In the first half of this year, China Mobile launched a three-month VoLTE experience package event, which freely presented VoLTE HD voice (including high-definition video) to the domestic market for 500 minutes. Recently, China Mobile has launched a free 200-minute VoLTE service per month, but it needs to be opened.
However, in the test about VoLTE, Tencent Technology found that it was possible to access the Internet at the same time during the call. However, browsing the webpage was slow, and it was almost impossible to open the video, just like going back to the 3G era. The outside world has also been vocal about VoLTE, and it is considered to be the operator's chicken rib business.
An industry source said: "China Mobile is pushing VoLTE because the 2G connection from 4G is too slow, and the cost of dual-network dual standby terminals is high, resulting in the construction and maintenance of 2G\4G network cost, so it is only necessary to push VoLTE, not Due to market user demand."
The Ministry of Industry and Information Technology's third quarter telecommunications service quality notice shows. By the end of the third quarter, the total number of telephone users nationwide reached 1.532 billion, of which 1.316 billion were mobile phone users; 4G users maintained rapid growth, with a net increase of 256 million from January to September, with a total of 686 million.
Permanent magnet Dc Motor is composed of stator magnetic pole, rotor, brush, case and so on. Stator magnetic pole is made of permanent magnet (permanent magnet steel), ferrite, alnico, ndfeb and other materials, and the rotor is generally made of silicon steel laminated. Enameled wire is wound between two slots in the rotor core (three slots are provided with three windings), and its joints are separately welded on the metal sheet of the commutator. Electric brush is a conductive part connecting power supply and rotor winding. Permanent magnet motor brush USES single metal sheet or metallic graphite brush, electrochemical graphite brush.Permanent magnet Gear Motor is established using permanent magnet magnetic field of a dc motor. Permanent magnet gear motor is widely used in various kinds of portable electronic equipment or apparatus
precision instruments and meters,automobile industry, medical equipment, consumer electronics, household appliances, electric glass doors and Windows,etc., wide application range,,Permanent Magnet Gear Motor is usually used in small power occasion.
Features: permanent
magnet gear motor is a kind of rectangular pulse wave, sine wave current, in the form of hybrid permanent magnet motor. Simple structure, high reliability and high efficiency.
Method of use: the best stable in horizontal plane, installed on the permanent magnet gear motor output shaft parts, cannot use a hammer to knock,knock prone to press into the permanent magnet gear motor drive, may cause damage to internal components, and cannot be used in the case of blocked.
Operating temperature range:
permanent magnet gear motor should be used at a temperature of -10~60℃.
The figures stated in the catalog specifications are based on use at ordinary room temperature catalog specifications re based on use at ordinary room temperature (approximately20~25℃.
If a geared motor is used outside the prescribed temperature range,the grease on the gearhead area will become unable to function normally and the motor will become unable to start.Depending on the temperature conditions ,it may be possible to deal with them by changing the grease of the motor's parts.Please feel free to consult with us about this.
Storage temperature range:
permanent magnet gear motor should be stored ta a temperature of -15~65℃.
In case of storage outside this range,the grease on the gearhead area will become unable to function normally and the motor will become unable to start.
Service life:
The longevity of permanent magnet gear motor is greatly affected by the load conditions , the mode of operation,the environment of use ,etc.Therefore,it is necessary to check the conditions under which the product will actually be used .The following conditions will have a negative effect on longevity.Please consult with us should any of them apply.
â—Use with a load that exceeds the rated torque
â—Frequent starting
â—Momentary reversals of turning direction
â—Impact loads
â—Long-term continuous operation
â—Forced turning using the output shaft
â—Use in which the permitted overhang load or the permitted thrust load is exceeded
â—A pulse drive ,e.g.,a short break,counter electromotive force,PWM control
â—Use of a voltage that is nonstandard as regards the rated voltage
â—Use outside the prescribed temperature or relative-humidity range,or in a special environment.
â—Please consult with us about these or any other conditions of use that may apply,so that we can be sure that you select the most appropriate model.
when it come to volume production,we're a major player as well .each month,we rurn out 600000 units,all of which are compliant with the rohs directive.Have any questions or special needed, please contact us, we have the engineer group and best sales department to service to you Looking forward to your inquiry. Welcome to our factory.
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Shenzhen Shunchang Motor Co., LTD. , https://www.scgearmotor.com