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Lte-advanced air interface technology pdf

lte-advanced air interface technology pdf

S12:- Reference point between utran and Serving GW for user plane tunnelling when Direct Tunnel is established.
It was later further developed into the Mobile Broadband Wireless Access (mbwa) system, also known as ieee 802.20.
S10:- Reference point between MMEs for MME relocation and MME to MME information transfer.Pcef (policy and charging enforcement function) implemented in the serving gateway, this enforces gating and QoS for individual IP flows on the behalf of the pcrf."China finally grants 4G licenses, but still no iPhone deal for China Mobile".Shukla, Anuradha (October 10, 2011).27 Advanced antenna systems edit Main articles: mimo and MU-mimo The performance of radio communications depends on an antenna system, termed smart or intelligent antenna.Linearly precoded ofdma, LP-ofdma) in the uplink: Variable bit rate by assigning different sub-channels to different users based on the channel conditions Turbo principle error-correcting codes : To minimize the required SNR at the reception side Channel-dependent scheduling : To use the time-varying channel Link.Retrieved December 3, 2010."LTE Direct Research Project Qualcomm".
S5:- It provides user plane tunnelling and tunnel management between Serving GW and PDN.
"Sprint announces seven new WiMAX markets, says 'Let AT T and Verizon yak about maps and 3G coverage.
Retrieved "MWC 2013: Ericsson and China Mobile demo first dual mode HD VoLTE call based on multi-mode chipsets".
See Self-configuring the uncomfortable truth gayton mckenzie book and self-optimizing Networks in LTE for details.
Retrieved "lsti job complete".
Archived from the original.How does measurements work in LTE?Retrieved April 5, 2011.After a series of field trials, is expected to be released into the commercial phase in the next two years.In the LCS architecture, an Evolved smlc is directly attached to the MME. .Whereas earlier standards largely used Phase-shift keying, more efficient systems such as 64 QAM are being proposed for use with the 3GPP Long Term Evolution standards.LTE Direct offers several advantages over existing proximity solutions including but not limited to Wi-Fi or Bluetooth."Sprint's LTE TDD Future to Boost Current Vendors".