LTE eNodeB

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LTE eNodeB

LTE eNodeB is partitioned into following categories:

Radio

Physical Layer (PHY)

Protocol Stack & Applications

Customizable Digital Frontend

SAI provides full end to end solution for eNodeB PHY and Protocol Stack in combination with any third party radio. The

solution complies fully with 3GPP LTE Release 8 and Release 9. SAI is also developing a complete compliant solution

for LTE Advanced (Release 10 & beyond) available by March, 2012.

eNodeB PHY

eNodeB PHY Highlights

OFDMA in DL and SC-FDMA in UL

Duplexing schemes; full/half duplex FDD, and TDD

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Scalable channel bandwidth up to 20 MHz and higher bandwidths of 40 MHz to 100 MHz with LTE Advanced

MIMO processing with 2x2 UL and 4x4 DL antennas with layering and pre-coding options & higher MIMO

configurations up to 8x8 in LTE Advanced

Adaptive modulation and coding, QPSK, 16QAM, and 64QAM for DL

Two frame structures: Type-1 shared by both full- and half-duplex FDD, Type-2 applicable to TDD Turbo code

eNodeB PHY Functional BLOCK DIAGRAM:

eNodeB PHY Deliverables

Matlab IP source code

C/ DSP IP source code

DSP based implementation

FPGA based implementation Verilog/VHDL

Test Bench/Test Vector

Software reference design document

Protocol test tool code

Complete reference design kit

User manual


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eNodeB Protocol Stack

Conformance to 3GPP standards through integration and validation with different systems as well as inter-

operability with leading infrastructure vendors

Adaptable future-proof design to support continuously evolving standards towards LTE-Advanced (LTE Release

10 and beyond)

Supports highest UE category (maximum LTE data rates)

Scalable and portable to integrate with different embedded hardware platforms and operating systems

Designed to meet optimum memory and performance requirements

Comprehensive set of debug trace and statistical logging tools supported

Supported OS are: Linux , Android, WinCE, VxWorks, Nucleus and also can be customized to customer’s specific

RTOS

LTE Layer 2

Layer-2 software consists of the comprehensive implementation of the LTE MAC, RLC and PDCP protocol sub-layers.

Key features are:

MAC – All LTE transport channels with optional MBMS

RLC – UM, TM, AM modes

PDCP – Ciphering, integrity protection and ROHC v1 and upgraded ROHC v2

LTE Layer 3


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The LTE Layer 3 software comprises of the Radio Resource Control (RRC) protocol. The LTE RRC layer provides

broadcast of system information; configures the RLC, MAC and PDCP layers; carries out mobility functions and QoS

management functions. Key features are:

System information handling

Paging

Measurements and cell reselection

Handover

RRC security and integrity

Radio Resource Management (RRM)

Radio resource management (RRM) – This covers all functions related to the radio bearers, such as radio bearer

control, radio admission control, radio mobility control, scheduling and dynamic allocation of resources to UEs in both

uplink and downlink.


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eNodeB Protocol Stack Deliverables

Binary or ANSI C source code for core protocol components

OS abstraction layer for target RTOS/platform

Fully documented APIs with user manuals

Continuous update of functionality based on the latest 3GPP LTE Standards

Product customization support services for both remote and on-site

Full solution on reference platforms based on PowerPC, MIPS, Arm and x86.


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LTE eNodeB

Documents

Transcript of LTE eNodeB