W-CDMA/LTE Area Optimization using ML8780A/81A

نویسندگان

  • Shoji Hamao
  • Yuji Yoshida
چکیده

Shoji Hamao, Yuji Yoshida [Summary] Mobile phone networks in Japan are switching from 3G to 3.9G/4G (LTE hereafter). However, there are some overlapping frequency bands between 3G and LTE. Further, mixed 3G and LTE networks will remain in place for some years due to the high cost of replacing legacy 3G network infrastructure. Consequently, measuring instruments that can obtain stably outcome never affected by interference of W-CDMA/LTE from each other system are needed and then it is necessary for special consideration of difference character betwewn W-CDMA and LTE. The ML8780A/81A Area Tester with new MU878030A/MU878040A test options is ideal for optimizing mixed W-CDMA/LTE service areas.

برای دانلود رایگان متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

High-Efficiency Power Amplifier for LTE/W-CDMA System

Long Term Evolution (LTE) systems are attracting attention as next-generation mobile communication systems. Such systems have come to transfer and manage large volumes of data at high speed. Therefore, base stations have urgent requirements for devices that are friendlier to the environment, easier to install and cheaper to run. Further, there are needs to reduce size and power consumption. Thi...

متن کامل

Optimum Medium Access Technique for next Generation Wireless Systems

This paper proposes a Multi-Code Multi-Carrier CDMA, best suited for multi-rate services using multicode schemes and multi-carrier services used for high rate transmission as required for the Universal Telecommunication Mobile Systems (UMTS) Long Term Evolution (LTE). The system performance has been analyzed and evaluated by means of signal-to-noise plus interference ratio and bit error rate un...

متن کامل

Voice capacity over LTE in PMR context : challenges and solutions. (Capacité de la voix sur LTE dans le contexte PMR : défis et solutions)

The Professional Mobile Radio (PMR) network, which is used for public safety operation, has to evolve to the broadband solutions to satisfy the user demands in the future. In the current broadband technologies Long Term Evolution (LTE) standard, developed by the 3rd Generation Partnership Project (3GPP), is considered as one of the potential candidates for the next generation of PMR. Despite th...

متن کامل

Performance Evaluation of Joint MLD with Channel Coding Information for Control Signals Using Cyclic Shift CDMA and Block Spread CDMA

This paper presents joint maximum likelihood detection (MLD) using channel coding information for orthogonal code division multiple access (CDMA) to decrease the required average received signal-tonoise power ratio (SNR) satisfying the target block error rate (BLER), and investigates the effect of joint MLD from the conventional coherent detection associated with channel coding. In the paper, w...

متن کامل

SAW-less Transceiver for 4G/3G/2G Cellular Standards

A single-chip multi-mode multi-band CMOS transceiver was designed and implemented for the 4G mobile platform. The transceiver supports both Long Term Evolution (LTE) frequency division duplexing (FDD) and time division duplexing (TDD) operation modes. It also supports 3G Wideband Code Division Multiple Access (W-CDMA) and 2G global system for mobile communication (GSM)/ enhanced general packet ...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2014