at t 3g plan

After analyzing the structure of the softswitch network, this article describes the hierarchical structure of the UMTS Release5 network, which reflects the application of the softswitch concept in 3G. Combined with the wireless LAN mode, 3G and WLAN Integration solutions are discussed. In recent years, the Softswitch technology has become the focus of public attention and will become the core technology of

With the rapid development of mobile communication, it becomes more and more important to solve the problem of indoor cover and capacity, and the micro-cell base station becomes an important means to improve the indoor coverage effect and to increase the special area capacity. The importance of 3G indoor coverage Good network coverage, especially indoor coverage is the key to the success of 3G, NTT DoCoMo

With the advent of the 3G communication era, it has also brought a variety of multimedia applications. In recent years, the rapid development of high-speed WLAN, which can provide close data rates, has gradually become an important application for the combination of 3G and WLAN, and has a deep potential for market development. In the 3GPP and other mobile communication standardization organizations, the con

1. Introduction As we all know, 3G network technology has three major technical systems, namely WCDMA, CDMA2000 and TD-CDMA technology. The first two technical systems because of the early, but also in Europe and the United States a number of well-known telecommunications equipment manufacturers, research institutions and operators support, so no matter from the standard or technical maturity, are relatively far ahead. TD-SCDMA is the

At present, China's 3G experiments and outfield testing is actively underway, the industry on the construction of 3G mobile network is very enthusiastic. For various reasons, the Ministry of Information industry is very cautious about the business of 3G service and has not yet made clear the time of issuance of 3G lice

1.3G Requirements for the transfer network WCDMA, CDMA2000 and TD-SCDMA as the three major standards of 3G, the main difference is the air interface part, the network's logical structure is basically the same. From the perspective of the transport layer, the three standard network structures are similar, so the requirements for the transport network are similar to each standard. For example, cdma2000ev-do is equivalent to the WCDMAR99 version of the

China's 3G market may bring the total value of the network infrastructure will be more than 500 billion yuan, terminal equipment sales will also reach the total of 500 billion yuan. In the face of this huge market of more than 1 trillion yuan, the communications giants have no reason not to move, not for the cry. The 3G network technology test, which began last October, has come to a close in China, but the

At the end of last year, the country's first 3G network was run in Guangzhou. During the same period, the media reported that 158, 159th will be classified as 3G resources. In Beijing, the 3G network has quietly covered two-ring main road. Users with a support for WCDMA and GSM mode of 3G dual-mode mobile phone, you ca

It is reported that, according to the operating data released by the three major domestic operators in July, as of the end of 0.159 billion, the number of 3G users in China reached. At the same time, the growth of 3G users slowed down significantly. The net increase of 3G users by the three major operators in April was no more than 3 million. Both China Telecom

, download the above generated usb_modeswitch executable program (no file type) and usb_modeswitch.conf configuration file to a directory on the Development Board (which is also executed in this place when execution is executed. 5. Compile the driver option of the 3G module. ko: device Drivers ---> USB support ---> Find the USB 3g driver file driver // USB/serial/option. c In the kernel source package

Yesterday, Le Video network announced has been approved by the SARFT, allowed to carry out mobile phone video business in the future. In fact, a group of websites, including the red-headed, have already obtained the SARFT's. The use of mobile phone platform to provide audio-visual programs, seems to be the video web site industry from the bottleneck to break through the new opportunities. However, the industry said that video site 3G dream in the term

. In the purchase mode and trial mode, you need to support the billing method of the number of users. In other modes, you do not need to use the billing method of the number of times. A pricing plan generally defines the price of the type and number of times of purchasing an application. All pricing plans have a validity day, that is, the start date of the effectiveness of the pricing plan. In addition, the

I believe many Internet users are no longer familiar with the 3G term. In the face of the arrival of 3G, many netizens cheered for the new "Broadband" era, because after a long wait, netizens can finally get rid of the limitations of wired networks, experience wireless Internet access. More importantly, in the 3G era, Internet users no longer need to suffer from

Do I still need WAP in the 3G era?(Article: Hero Wang) Recently, when chatting with friends, I often mention a topic. Do I still need WAP in the 3G era? This is a good topic. Most of the people who ask this question are WAP practitioners. What they are most worried about is that in the 3G era, when users use 3G to acc

News of Mobile 4G is also rumoured to be available by the end of the year (2013), and the number of handsets currently available to use 4G networks is numbered. For 4G than 3G Network 10 times times faster This message, personally think is still not true. First of all, it is true theoretically 4G network is 10 times times faster than 3G itself, but when you are moving, the distance from the cell phone sign

PS: no navigation function is available after upgrade to baseband 06.15, Unless your iPhone baseband is already 05.14 or 05.15 and you need to upgrade it to 06.15, we recommend that you do not upgrade it for the time being. PreviousIt cannot be downgraded back to the old baseband. Now the new version can be downgraded back to the baseband, but some machines still cannot be downgraded, depending on your luck. My personal character is guaranteed, and the baseband is downgraded once. By the w

The Most mature 3G network system is the WCDMA developed by the 3GPP project team. WCDMA network structure, can refer to Figure 12.1, which has several characteristics. 1. Reverse-compatible Gsm/grps network. The base station subsystem (BSS) of the original GSM network remains unchanged and can be interconnected with the transformed core network via the original a protocol stack and the GB protocol stack. 2. The core network maintains the netw

With the development of the routing industry, IPv6 routers are also widely used. So I have studied the practical application of IPv6 routers in the 3G mobile communication system. Here I will share with you, I hope it will be useful to you. Due to the rapid development of Internet and Internet applications in recent years, the number of people using networks and computers that are new to the Internet has rapidly increased. Currently, the 32-bit IPv4 a

Point of view 1: In the construction of 3G mobile transmission network, a simple idea is to build a set of independent ATM network for UTRAN, but ATM switching equipment is more expensive, and as a basic network, practice proves that it is not the best solution for other business. In addition, ATM has the problem of automatic configuration and recovery time of the whole network connection in the use of fiber network, and it can't meet the requirement

I. Arm-Linux ARM-Linux-2.6.17 3G usb modem: huaweie220 (WCDMA), huaweiec156 (evdo) Arm-Linux must support at least USB host, USB storage, usb fs, and USB serial Ii. Linux driver Option. c In Linux, option. c is the driver for 3G modem. You can modify it to support most of the 3G usb modem. Currently, the USB option PCMCIA serial driver of my current version depe