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MTK chip Data Daquan, MediaTek's various models of chip data are:The other does not say, directly may be clear: The picture does not know why not show.Download Link: https://bbs.usoftchina.com/forum-238-1.htmlThese information are all the small partners to share and collected, dare not say that all of the MTK chip data have, but most of them are here, the model is also many, need to add our AC Q Group: 813238832. The following release of the different models of the introduction and information f

industry predicts that by 1000, the capacity demand of the mobile communication network will be times that of the current network, and the number of connections will be 10-times that of the current network. Obviously, the existing technology cannot meet such connection requirements, and even a simple upgrade of the existing network cannot meet such connection requirements. "We often have a vague understanding about whether a 4G upgrade can be changed to a 5G upgrade. We must first emphasize tha

Multi-mode multi-frequency requirements after joining LTE:After joining LTE, the terminal not only requires the end to increase the LTE working frequency band on the basis of multimode, but also increases the frequency bands which can ensure the user to realize the international roaming. HoweverThe global distribution of LTE bands is more and more discrete.

Sample Code for common mongodb select operations in php, mongodbselect We have mentioned mongodb installation, configuration, cluster, and php insertion and update. For more information, see mongodb.The following describes common mongodb select operations. Test data:Copy codeThe Code is as follows:{"_ Id": 1, "title": "Dream of Red Mansions", "auther": "Cao Xueqin", "typeColumn": "test", "money": 80, "code": 10}{"_ Id": 2, "title": "besieged city", "auther": "Qian Zhongshu", "typeColumn": "test"

In front of the MongoDB installation, configuration, clustering, and PHP insert and update, please refer to: MongoDB. Here's a look at the common operations of MongoDB Select Test data:Copy the Code code as follows:{"_id": 1, "title": "Red Mansions", "Auther": "Cao Xueqin", "Typecolumn": "Test", "Money": "Code": 10}{"_id": 2, "title": "Fortress Besieged", "Auther": "Qian Zhongshu", "Typecolumn": "Test", "money": "," "Code": 20}{"_id": 3, "title": "Baidicheng", "Auther": "Li Bai", "Typecolumn":

In front of the MongoDB installation, configuration, clustering, as well as PHP inserts and updates, please refer to: MongoDB.Let's say, the common operations of MongoDB Select Test data: Copy Code code as follows: {"_id": 1, "title": "Red Mansions", "Auther": "Cao Xueqin", "Typecolumn": "Test", "money": "," Code ": 10} {"_id": 2, "title": "Fortress Besieged", "Auther": "Qian Zhongshu", "Typecolumn": "Test", "money": A, "code": 20} {"_id": 3, "title": "Chao fa Baidicheng", "A

MongoDB Aggregation OperationsReading notesMongoDB, two kinds of computational aggregates pipeline and MapReducePipeline queries are faster than MapReduce, but MapReduce can execute complex aggregation logic on multiple servers in parallel.MongoDB does not allow pipeline to consume too much system memory for a single aggregation operation, and if an aggregation operation consumes more than 20% of the memory, MongoDB stops the operation directly and outputs an error message to the client.The pipe

The 4G era is already coming, and for users, 4G means faster transfer speeds and a better mobile network experience. But for operators, how to deploy 4G has become a big problem. As we all know, 4G LTE is now the most advanced mobile broadband solution in the world and the fastest-growing wireless communication technology in history. For operators, in order to occupy a place in the 4G era, in addition to actively promote

field:idx,name and age in each doc. for (I=0; I10000; I+ +) { db.foo. Insert ({"IDX": I,name: "user "+i,age:i);}1, the use of $match pipe to filter the collection doc, the qualified doc into the pipeline, can reduce the memory consumed by the aggregation operation, improve the efficiency of the aggregation.Db.foo.aggregate ({$match: {age:{$lte: 25}})2, use $project pipe character, use part of Doc field to enter subordinate pipelinedb.foo.aggregate

Some symbols in mongodb greater than: $ gt greater than or equal to: $ gte less than: $ lt less than or equal to: $ lte not equal to: $ neIN: $ inNOTIN: $ nin remainder: $ mod not: $ not or: $ OR Example 1: Query persons of the age of 20 and 30 in XXX: [javascript] db. XXX. find ({age :{$ gt: 20, lte: 30}); Example 2: query the age in XXX Some symbols IN mongodb greater than: $ gt greater than or equal to:

As operators are facing almost crazy demands for mobile data, data congestion may occur in at least four different fields, including: · Wireless Access Network; · Network Signaling and Control; · Grouping core networks; · Return network. Each type of bottleneck is a special challenge for operators. One of the following three methods can be used to solve the problem: 1.Increase the capacity of the affected network resources; 2.Distribute network resources to relieve congestion; 3. Take the above

December 31, 2013, Shenzhen-on World Telecommunication Day (December 31, May 17, the "2013 Shenzhen terminal Radio Frequency Technology Seminar" sponsored by microwave radio frequency network, an industry portal website focusing on microwave, RF, and wireless technology, was successfully held at the default Hotel in Bolin, Shenzhen. This seminar will focus on the hardware design and testing technical difficulties and hot spots of next-generation LTE (

. 　　4, my licensed iphone 5s was abandoned by 4G?—— use 4G is only a matter of time A while ago the iphone 5s/5c with China Mobile 4G network of things stir, a time Business Hall cut card sound, but a lot of small partners to go after the disappointment and return, because only the port version of the iphone 5s/5c can be 4G "lucky", a time licensed, American version of the user dejected. The little fellows raised their heads, and the good news came! In fact, we saw in the iphone 5

Compared with the 2g/3g, 4G the biggest feature is to provide more than 100Mbps peak rate, since the speed can be seconds off 20M of optical fiber fixed network, it is used for voice calls is a piece of cake? It is a pity that the problem arises here. Since the current LTE network (4G) does not support voice services, so whether it is Td-lte (mobile 4G) or Fdd-

Since operators are facing a near-crazy demand for mobile data, there are at least four different areas where data congestion can occur, including: • Wireless access network; • Network signaling and Control section; • cluster core network; • Return network. Each bottleneck is a special challenge for operators, which can be solved in one of the following three ways: 1. Increase the capacity of the affected network resources; 2. Streaming network resources to alleviate congestion; 3. Both

Explain and IndexExplain there are three modes, namely: Queryplanner, Executionstats, Allplansexecution. In the reality development, the common executionstats pattern, this example analyzes this mode.> db.createcollection ("Person"){"OK": 1}> for (var i=0;i... db.person.insert ({"Name": "Ryan" +i, "age": i})... }Writeresult ({"ninserted": 1})> Db.person.find ({"Age": {"$lte": +}}). Explain ("Executionstats"){"Queryplanner": {"Plannerversion": 1,"Names

The Ministry of Industry issued a notice, to China Mobile, Chinese Telecom and Unicom issued "lte/fourth generation digital cellular mobile communications Business (TD-LTE)" Business license. Thus, China's formal entry into the 4G commercial era. According to the Ministry of Public announcement, China Mobile, China Telecom and Unicom have access to td-lte licenc

With the development of China's routing industry, many emerging technologies have emerged. IP routing technology is widely used in routing technology, here we will mainly analyze the practical principles that should be followed when using IP routing technology, from the perspective of the transmission network, I think it is necessary to carefully check whether it has the Bandwidth Reservation for processing QoS and users' mobile terminals in the whole IP environment. Speech traffic and other hig

downloaded, and the other is uploaded. Like a two-lane car, two directions do not interfere with each other, smooth and unobstructed. TDD adopts another method. It uses only one frequency for both upload and download. The advantage is that FDD saves a lot of time and consumes more resources (in fact, TDD needs to reserve a large protection band to avoid interference and consume some resources ). Because it is a "one-way street" that runs two-way "traffic flow", TDD can only control traffic t

How is the development of 4G + operator? In the recent period, 4G + has become a keyword that the three major domestic operators are scrambling to mention. The so-called 4G +, is the LTE-A (LTE-Advancde), is based on the original 4G network, the use of carrier aggregation technology (CA), further expand the network spectrum, network quality optimization, in essence, 4G + is the evolution of 4G technology.