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difficulties to operation and maintenance. Iv. typical application fields of LMDS system (1) Application of LMDS in data communication network As the access part of the data communication network, the LMDS system plays the role of connecting the Service node interface and the user network interface. This application is the traditional telecom operators on the basis of existing networks, as a complementary means of optical fiber access, in the short term to meet user demand for broadband serv

If your company is in the Tempe City of Arizona, State, you now face the choice of spending money on large area Wi-Fi or cellular digital services like 1X ev-do. Wireless network problems As with most other things, finding the answer is not easy. Maybe you need to pay for both of these, depending on your end-user needs and the applications they use. Currently, Wi-Fi providers are already using low monthly rents and high bandwidth to woo customers, a

HSDPA (High speed downlink packet access) is used to realize high speed downlink data service of WCDMA network, which can make the downlink data rate reach 8~10mbps, which is regarded as the main solution of the 3G era. The data rate can reach 20Mbps in the HSDPA system with multiple and multiple out (MIMO) technology. The emergence of HSDPA has aroused great concern of the industry. As the following evolution technology of WCDMA system, many key technologies in HSDPA are similar to CDMA20001XEV

reached 108, WCDMA style has been a relatively many improvements. At present, the commercial system, from the WCDMA angle is mainly based on F4, cellular mobile camp including broadband access, different camps competition between the comparison, but also to promote the 3G technology and standards continue to develop. CDMA2000 's camp is in the position of comparative advantage, as 1X itself can provide a user rate of up to 80K. WCDMA itself and the E

The historical background of "1" MTK debutIf the 1960 is the era of mainframe (Mainframe) , the 1970 's is the era of minicomputer (microcomputer) , then the 1980 is undoubtedly the era of personal computers (PC), And the 1990 's is the era of the Internet. What about after 2000? Perhaps the era of mobile internet.Similar to the development of the computer, the development of the mobile Internet, it seems to be the same as the hardware improvement as the forerunner, the software boom followed, d

The launch of Android 4.4 , power-saving technology, Google also said that the improvement! Let's get to know what's going on with Android 4.4 Power-saving technology !Test conclusion:1) The most power-saving of the off-screen standby:A) any app including background service should minimize the number of wake-up CPU, such as the long connection of IM business heartbeat, QQ reminder Standby alarm class business alarm hard clock wake to strict control;b) Each wake up CPU execution of the code shoul

services such as voice communication or medium-speed data communication. DECT in Europe, PHS in Japan, and UT Starcom in PHS are flexible in use. It can be used in public network wireless access technology systems, it can also be used for private network wireless access systems. The most suitable private Wireless Access system within a building or within a unit area. It is also suitable for public communication operators to set up small-area wireless access technology systems in exhibition cent

When talking about Unified Communication, many friends first think of mobile communication. Indeed, in the concept of Unified Communication, mobile communication technology is indeed included. But not all of them. We will introduce this knowledge in detail through this article for mobile Unified Communication. Mobile Unified Communication Elements With the wide recognition of the benefits of mobility, there are a wide variety of mobile communication solutions available. The mobile Unified Commun

Access Network Technology-Wireless Access Wireless access can be divided into mobile access and fixed access. Mobile access can be divided into two types: high speed and low speed. High-speed mobile access is generally available in cellular systems, satellite mobile communication systems, and cluster systems. Low-speed access systems can use PGN micro-cells and micro-cells, such as cdma will, PACS, and PHS. Fixed access refers to wireless access from

confidentiality and anti-interference capabilities, clear sound quality, stable calls, large capacity, high frequency resource utilization, open interfaces, and powerful functions. China introduced this technical standard in early 1990s. Previously, it had been using cellular analog mobile technology, that is, the first generation of GSM technology, which was disabled by China in December 31, 2001 ). Currently, China Mobile and China Unicom each have

configuration, this configuration will not cache, cookies, etc. exist locally, only in memory, so when the program exits, all the data will disappear Background mode (backgroundsessionconfiguration): In the background to complete the upload download, create a configuration object, you need to give a NSString ID used to track the completion of the session is which. This configuration is used when making remote push notifications or when the application hangs. Common Properties