Thursday, March 18, 2010

Motorola Adds TD-LTE 4Tx/8Rx Radio Head

Motorola has added a TD-LTE-Advanced capable 4Tx/8Rx radio head with multiple input/multiple output (MIMO) to its 4G - WBR 700 Series LTE eNodeB portfolio, which is the company's fourth generation orthogonal frequency division multiplexing (OFDM) solution and its second generation LTE platform. The WBR 700 Series features Motorola's proprietary Intelligent OFDM Scheduler for improved sector throughput. This eNodeB portfolio supports TD-LTE as well as FDD-LTE solutions in a wide variety of frequencies from 700MHz to 2.6GHz and offers an unprecedented mix of capacity, compact size and energy efficiency.

The new TD-LTE solution - while similar in size to a standard 2Tx/2Rx LTE eNodeB - enables advanced MIMO schemes including multi user (MU) MIMO and beam-forming. The product will be available for 2.3GHz and other TD-LTE bands such as 2.6GHz.

Motorola said its energy-efficient WBR 700 TD-LTE 4Tx/8Rx radio head reduces power consumption by up to 30 percent using advanced linearization techniques, helping to lower operational expenses.

Motorola also noted that interest in TD-LTE continues to grow because of several key factors:

  • the low cost of TDD spectrum that is particularly attractive to emerging and developing markets

  • operators' continuing need for more capacity and spectrum

  • and the ability of TD-LTE to hand-off to FDD-LTE networks. This means operators can use TD-LTE networks to augment their FDD-LTE network for more capacity or other applications such as video broadcasting, while operators choosing to use TD-LTE as their "main" network can still offer their subscribers the ability to roam to other operators' FDD-LTE networks in different countries.
  • Motorola was selected last year by China Mobile Communications Corporation (CMCC) to be the primary TD-LTE solution supplier providing indoor coverage for all major pavilions at the World Expo 2010 in Shanghai China.

  • Motorola's on-going advancements in TD-LTE include its recently announced first over- the-air TD-LTE data session on the TD-LTE network in Shanghai and the successful completion of the TD-LTE key functionalities tests initiated by China's Ministry of Industry and Information Technology (MIIT).