HPUE

From Wikipedia, the free encyclopedia
Jump to navigation Jump to search

High Power User Equipment (HPUE) is a special class of user equipment for the LTE cellular network.

In Release 11 of the LTE standard, 3GPP proposed so called High Power User Equipment (HPUE) for band 14 (700 MHz).[1] While current off-the-shelf UE is only allowed to transmit at a maximum output power of 23 dBm, the HPUE are allowed to transmit with an output power of up to 31 dBm. Since the transmission range depends on the transmit power, the cell range can be increased by nearly 80% and user devices can operate better in challenging RF environments, such as inside large concrete buildings.

The first HPUE has been presented by the Finnish company Bittium Oyj formerly known as Elektrobit, together with Rohde & Schwarz at Mobile World Congress 2014.[2] They implemented the test cases of 3GPP, to show that the use of HPUE does indeed not interfere with adjacent commercial LTE networks.

The first portable, battery-operated device to operate with HPUE capabilities in actual field operation is the HPUE Band 14 Personal Gateway device by Assured Wireless Corporation in early 2017. [3] This device is fully compliant with 3GPP specifications for HPUE and operates at the full 31dBm maximum transmit power levels. Tests on networks around the U.S. and, specifically, actual public safety user experience at the 2017 Houston Livestock Show and Rodeo [4] showed the ability of this HPUE equipment to operate with any LTE Band 14 network with reliable performance that stays connected in areas where all existing standard-power LTE devices fail to connect, while also improving user data rates even in areas of good coverage and increasing overall cell capacity.

References[edit]

  1. ^ 3GPP, “TR 36.837 - V11.0.0 - Public safety broadband high power User Equipment (UE) for band 14,” 2012
  2. ^ Rohde & Schwarz, “Rohde & Schwarz and Elektrobit first to test high-power user equipment for public safety networks on LTE Band 14,” http://www.rohde-schwarz.de/de/news_events/press-room/pressemitteilungen/press-Rohde_%26_Schwarz_and_Elektrobit_first_to_test_high-power_user_equipment_for_public_safety_networks_on_LTE_Band_14_.html?tl=en, 2014, [Online; accessed 05-Jan-2016].
  3. ^ "PSC Online, Assured Wireless Demonstrates Industry’s First High Power Portable User Equipment for LTE Band 14 Public Safety Wireless Networks," http://psc.apcointl.org/2017/03/16/assured-wireless-demonstrates-industrys-first-high-power-portable-user-equipment-for-lte-band-14-public-safety-wireless-networks/ 2017
  4. ^ "Mission Critical Communications, Public-Safety LTE High-Power User Devices Tested at Houston Rodeo," https://www.rrmediagroup.com/News/NewsDetails/NewsID/15424, April 2017