MIMO Single User for LTE

SU-MIMO = Single User MIMO It is the most common form of MIMO. Each user is served by only one BS and it occupies the resource exclusively, including time, frequency....
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India’s Supreme Court Rejects Appeals Over Confiscated GSM Licenses

India’s Supreme Court has rejected petitions to review its decision to void all 122 of the controversial GSM licenses that were awarded in 2008.   Seven mobile networks affected by...
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cell, google, gsm, news, telecom, telecom news, updates, usa

How Downlink Control Information or DCI in LTE?

The PDCCH carries Downlink Control Information or DCI to indicate the resource assignment in UL or DL for one RNTI.  A DCI can conveys various pieces of information, but the...
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categories, data lte, dci format lte, downlink, downlink control information, how dci sent to ue in lte, lte, number of dci in lte, resource block, rnti, telecom, transmission in lte, ue, ue in lte, uplink

How Data Transmission in UL in LTE?

In UL, the UE has no dedicated resources to transmit directly when new data arrived in the buffer from higher layer.  It requests resources to transmit them.  It receives radio...
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categories, data lte, demodulation reference signal lte, downlink, fdma, frequency selective scheduling, lte, sc-fdma lte, sounding reference signal, telecom, transmission in lte, ue, ue in lte, uplink, uplink scheduling request lte

DL scheduler in LTE

The DL scheduler is spit into 3 functional parts: 1.The Static Scheduler: Which assigns a fixed amount of Transport Blocks as well as PDCCH and PDSCH resources for the BCCH...
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Downlink DL Scheduler in LTE, Static Scheduler, Semi-static Scheduler, Dynamic Scheduler LTE work, lte basic, lte advanceBCCH, categories, data lte, downlink, lte, lte timing advance ts, telecom, timing advance, timing advance in lte, transmission in lte, ue, ue in lte

Radio Bearer in LTE

There are 2 types of Radio Bearers (RB) in LTE:  To carry signaling. There are called the SRB (Signaling Radio Bearer) To carry user data. There are associated with an...
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attach, bearer, bearer in lte, enodeb, eps, lte, lte radio, lte radio bearers, margin in lte, qos, radio bearers in lte, telecom, telecom bearer, traffic, traffic in lte, what is a dedicated radio bearer

What is EPS Bearer in LTE?

EPS is a connection-oriented transmission network and, as such, it requires the establishment of a “virtual” connection between two endpoints (e.g. a UE and a PDN-GW) This virtual connection is...
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bearer, bearer in lte, drb, enodeb, eps, lte, lte radio, margin in lte, qci, qos, radio bearers in lte, telecom, traffic, traffic in lte

How Synchronization Channel Works in LTE?

After the power on, the UE knows:  the UE category and capability. the preferred PLMN. the carriers. The UE needs to know: The frame synchronization to be able to decode...
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access, BCH, cell, lte, lte sync, no of primary channel identifier in lte, radio, resource block, rrc, step in lte, sync, telecom

Synchronization & BCH for TDD Frame in LTE

The Primary synchronization signal (PSS): is placed at the third symbol in subframes #1 and #6. The secondary synchronization signal (SSS): is placed at the last symbol in subframes #0...
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access, BCH, cell, d-bch lte, lte, lte sync, lte tdd pbch, radio, rrc, step in lte, sync, telecom

Random Access Procedure in LTE

When the UE has obtained system information, it has to request an RRCconnection. Like it has no dedicated resources, the UE requests the connection using the Random Access Procedure using...
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random access procedure lte, lte rrc states, random access preamble lte, lte cell search procedure detailaccess, BCH, cell, contention free random access, enodeb, lte, lte random access procedure, lte sync, ra-rnti associated preamble, radio, rnti, rrc, step in lte, steps for ue and enodeb, sync, telecom, uplink

WCDMA Modulation

Different modulation methods corresponding to different transmitting abilities in air interface. R99/R4: QPSK HSDPA: QPSK or 16QAM The UTRAN air interface uses QPSK modulation in the downlink, although HSDPA may...
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air interface, amplitude, cdma, cdma modulation, hsdpa, modulation, qam, qpsk, signal, telecom, wcdma modulation, wcdma modulation qam

Step of RRC Connection Setup in LTE

When the UE is powered up, it has to be RRC connected to be able to exchange data and signaling with the network. After the RRC connection, the Initial network...
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