Carrier Aggregation in LTE-Advanced

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Carrier Aggregation in LTE-Advanced

  1. 1. © 2012 Agilent Technologies LTE-Advanced Design and Test Challenges - Carrier Aggregation Presented by: Martha Zemede, Agilent Technologies
  2. 2. © 2012 Agilent Technologies 2 © 2012 Agilent Technologies Agenda • Overview of carrier aggregation – Carrier aggregation modes – Operating bands – Cell configuration – Deployment scenarios – Layer 1 and 2 structure – Resource scheduling • Design challenges • Test challenges • Agilent solutions • Resources
  3. 3. © 2012 Agilent Technologies 3 © 2012 Agilent Technologies Release 10 and Beyond Proposals Radio aspects 1. Carrier aggregation 2. Enhanced uplink multiple access a) Clustered SC-FDMA b) Simultaneous Control and Data 3. Enhanced multiple antenna transmission a) Downlink 8 antennas, 8 streams b) Uplink 4 antennas, 4 streams 4. Coordinated Multipoint (CoMP) 5. Relaying 6. Home eNB mobility enhancements 7. Customer Premises Equipment 8. Heterogeneous network support 9. Self Optimizing networks (SON) Rel 10 LTE-A proposed to ITU Other Release 10 and beyond
  4. 4. © 2012 Agilent Technologies 4 © 2012 Agilent Technologies What is Carrier Aggregation? • Extends the maximum transmission bandwidth, up to 100 MHz, by aggregating up to five LTE carriers – also known as component carriers (CCs) • Lack of sufficient contiguous spectrum forces use of carrier aggregation to meet peak data rate targets: – 1 Gbps in the downlink and 500 Mbps in the uplink • Motivation: – Achieve wide bandwidth transmissions – Facilitate efficient use of fragmented spectrum – Efficient interference management for control channels in heterogeneous networks ≈ Resourceblock f
  5. 5. © 2012 Agilent Technologies 5 © 2012 Agilent Technologies Band A Band B Carrier Aggregation Modes Intra -band contiguous allocation Resourceblock f ≈ Resourceblock f Intra-band non-contiguous allocation Inter-band non-contiguous allocation Component Carrier (CC)– up to 20 MHz BW Resourceblock f Band A Band A
  6. 6. © 2012 Agilent Technologies 6 © 2012 Agilent Technologies Carrier Aggregation for Release 10 • Backward compatible with LTE Release 8 / 9 – Each component carrier (CC) appears as Release 8/9 carrier to LTE UE – Can be operated stand-alone as a single carrier or as part of carrier aggregation • Deployment will be limited to the use of two CCs; signalling supports up to 5 CCs • FDD downlink – Supports both intra-band contiguous and inter-band aggregation • TDD downlink – Supports intra-band contiguous aggregation • FDD & TDD uplink – Supports intra-band contiguous aggregation PUSCH PUSCH PUCCH Frequency Example of contiguous aggregation of two uplink CCs
  7. 7. © 2012 Agilent Technologies 7 © 2012 Agilent Technologies Carrier Aggregation – Operating Bands for Release 10 • Intra-band contiguous CA: – Bands 1 and 40 are supported: • 15 and 20 MHz carrier bandwidths for Band 1 • 10, 15 and 20 MHz bandwidth in Band 40 Band E-UTRA Band Uplink (UL) operating band Downlink (DL) operating band Duplex ModeBS receive / UE transmit BS transmit / UE receive FUL_low – FUL_high FDL_low – FDL_high CA_1 1 1920 MHz – 1980 MHz 2110 MHz – 2170 MHz FDD CA_40 40 2300 MHz – 2400 MHz 2300 MHz – 2400 MHz TDD Band E-UTRA Band Uplink (UL) operating band Downlink (DL) operating band Duplex ModeBS receive / UE transmit BS transmit / UE receive FUL_low – FUL_high FDL_low – FDL_high CA_1-5 1 1920 MHz – 1980 MHz 2110 MHz – 2170 MHz FDD 5 824 MHz – 849 MHz 869 MHz – 894 MHz • Inter-band non-contiguous CA: – Bands 1 and 5 for 10 MHz CCs, one CC per band
  8. 8. © 2012 Agilent Technologies 8 © 2012 Agilent Technologies Rel-11 Carrier Aggregation Combinations Band Lead company Uplink Downlink Uplink Downlink Mode CA-B3_B7 TeliaSonera 1710 - 1785 1805 - 1880 2500 - 2570 2620 - 2690 FDD CA-B4_B17 AT&T 1710 – 1755 2110 - 2155 704 – 716 734 - 746 FDD CA-B4_B13 Ericsson (Verizon) 1710 – 1755 2110 - 2155 777 - 787 746 - 756 FDD CA-B4_B12 Cox Communications 1710 – 1755 2110 - 2155 698 – 716 728 - 746 FDD CA-B20_B7 Huawei (Orange) 832 – 862 791 - 821 2500 - 2570 2620 - 2690 FDD CA-B2_B17 AT&T 1850 – 1910 1930 - 1990 704 – 716 734 - 746 FDD CA-B4_B5 AT&T 1710 – 1755 2110 - 2155 824 – 849 869 - 894 FDD CA-B5_B12 US Cellular 824 – 849 869 - 894 698 – 716 728 - 746 FDD CA-B5_B17 AT&T 824 – 849 869 - 894 704 – 716 734 - 746 FDD CA-B20_B3 Vodafone 832 – 862 791 - 821 1710 - 1785 1805 - 1880 FDD CA-B20_B8 Vodafone 832 – 862 791 - 821 880 – 915 925 - 960 FDD CA-B3_B5 SK Telecom 1710 - 1785 1805 - 1880 824 – 849 869 - 894 FDD CA-B7 China Unicom 2500 - 2570 2620 - 2690 2500 - 2570 2620 - 2690 FDD CA-B1_B7 China Telecomm 1920 - 1980 2110 - 2170 2500 - 2570 2620 - 2690 FDD CA-B4_B7 Rogers Wireless 1710 – 1755 2110 - 2155 2500 - 2570 2620 - 2690 FDD CA-B25_25 Sprint 1850 - 1915 1930 - 1995 1850 - 1915 1930 - 1995 FDD CA-B38 Huawei (CMCC) 2570 - 2620 2570 - 2620 2570 - 2620 2570 - 2620 TDD CA-B43 Clearwire 3600 - 3800 3600 - 3800 3600 - 3800 3600 - 3800 TDD
  9. 9. © 2012 Agilent Technologies 9 © 2012 Agilent Technologies Carrier Aggregation- Cell Configuration • PCell (Primary Serving Cell): handles the RRC connection establishment/re-establishment – PCC (Primary Component Carriers): uplink and downlink CCs corresponding to the PCell • SCell (Secondary Serving Cell): configured after connection establishment, to provide additional radio resources – SCC (Secondary Component Carriers): uplink and downlink CCs corresponding to the SCell • PCell: – PDCCH/PDSCH/PUSCH/PUCCH can be transmitted – Measurement and mobility procedure are based on PCell – Random access procedure is performed over PCell – Can not be deactivated – DL PCell and UL PCell are linked via SIB2 • SCell: – PDCCH/PDSCH/PUSCH can be transmitted (not PUCCH) – MAC layer based dynamic activation/deactivation procedure is supported for SCell for UE battery saving – Can be cross scheduled SCC SCCPCC Downlink PCC SCC Uplink Examples of primary and secondary component carriers for uplink and downlink
  10. 10. © 2012 Agilent Technologies 10 © 2012 Agilent Technologies Carrier Aggregation Deployment Scenarios (1 of 2) Scenario #2: • F1 and F2 cells are co-located and overlaid, but F2 has smaller coverage • Only F1 provides sufficient coverage and F2 is used to improve throughput. • Likely scenario when F1 and F2 are of different bands F1 F2 Scenario #3: • F1 and F2 cells are co-located but F2 antennas are directed to the cell boundaries of F1 so that cell edge throughput is increased. • F1 provides sufficient coverage but F2 potentially has holes • Likely scenario when F1 and F2 are of different bands Scenario #1: • F1 and F2 cells are co-located and overlaid, providing same coverage. • Likely scenario when F1 and F2 are of the same band.
  11. 11. © 2012 Agilent Technologies 11 © 2012 Agilent Technologies Carrier Aggregation Deployment Scenarios (2 of 2) Scenario #4: • F1 provides macro coverage and on F2 Remote Radio Heads (RRHs) are used to improve throughput at hot spots. • Likely scenario when F1 and F2 are of different bands, Scenario #5: • Similar to scenario #2, but frequency selective repeaters are deployed to extend coverage for one of the frequencies. In Release 10, scenarios 1, 2 & 3 are supported for UL when F1 & F2 are in same band. For DL, all scenarios are supported
  12. 12. © 2012 Agilent Technologies 12 © 2012 Agilent Technologies Layer 2 Structure for Carrier Aggregation • Data aggregation happens in MAC layer, the multi-carrier nature of carrier aggregation not visible to core network • The MAC layer divides the data between different CCs and separate HARQ processes for each CC Segm. ARQ etc Multiplexing UE1 Segm. ARQ etc ... Scheduling / Priority Handling Logical Channels Transport Channels MAC RLC Segm. ARQ etc Segm. ARQ etc PDCP ROHC ROHC ROHC ROHC Radio Bearers Security Security Security Security ... HARQ HARQ... Multiplexing UEn HARQ HARQ... CC1 CCx... CC1 CCy... Multiplexing ... Scheduling / Priority Handling Transport Channels MAC RLC PDCP Segm. ARQ etc Segm. ARQ etc Logical Channels ROHC ROHC Radio Bearers Security Security HARQ HARQ... CC1 CCx... Layer 2 Structure for the UL (3GPP TR 36.912 V10.0.0, Figure 5.2.1-2) Layer 2 Structure for the DL (3GPP TR 36.912 V10.0.0, Figure 5.2.1--1) Independent HARQ per CC Independent HARQ per CC
  13. 13. © 2012 Agilent Technologies Channel coding HARQ modulation Resource mapping CC2 MAC to Physical Layer Mapping for Carrier Aggregation • There is one transport block, up to two in case of spatial multiplexing, and one HARQ entity per scheduled component carrier • A UE can be scheduled over multiple component carriers simultaneously, but one random access procedure at any time Channel coding HARQ modulation Resource mapping CC1 One UE TrBlk 1 TrBlk 2 ….
  14. 14. © 2012 Agilent Technologies 14 © 2012 Agilent Technologies Resource Scheduling Downlink Control Signaling • Resources can be assigned to a UE in two ways: – Same-carrier scheduling – separate PDCCH for each CC • Reusing Release 8/9 PDCCH structure and DCI formats – Cross-carrier scheduling – common PDCCH for multiple CCs. • Reusing Release 8 /9 PDCCH structure • New 3-bit Carrier Indicator Field (CIF) added to Release 8 DCI • Main motivation: – Load balancing – Interference management for control channels in heterogeneous networks • PCell can not be cross scheduled, it is always scheduled through its own PDCCH PDCCH PDSCHCC1: PCell PDCCH PDSCH CC1: PCell PDSCH scheduled by PDCCH from PCell CC2: SCell 1 ms subframe Cross-carrier scheduling (3-bit CIF included in DCI) 1 ms subframe Same-carrier scheduling
  15. 15. © 2012 Agilent Technologies 15 © 2012 Agilent Technologies Macro Cell Pico CellCC1 for Macro Cell CC2 for Macro Cell CC2 Low Power CC1 Low Power Cross-Carrier Scheduling: Interference management for control channels in heterogeneous networks • Cross-carrier scheduling provides interference management for control channels known as Inter- Cell Interference Coordination (ICIC) for PDCCH. • In this example, CC1 of Macro Cell would cause high interference to CC1 of pico cell, therefore pico cell uses CC2 for PDCCH messages to schedule PDSCH transmission on CC1 • Macro cell uses CC1 to schedule PDSCH transmission on both CC1 and CC2 PDCCH PDSCH PDSCH scheduled by PDCCH from CC1 Macro Cell PDCCH PDSCH PDSCH scheduled by PDCCH from CC2 Pico Cell CC1 CC2 CC1 CC2 Cross-carrier scheduling avoids control channel interference
  16. 16. © 2012 Agilent Technologies 16 © 2012 Agilent Technologies Updates to Uplink Control Signaling • Uplink control signaling must be extended to work across multiple carriers – Release 8 PUCCH was not designed to carry large numbers of ACK/NACK bits • PUCCH format 1b with “channel selection” for up to 4 ACK/NACK bits, 2 CCs – Similar way to Release 8 TDD • New PUCCH format 3 for full range of ACK/NACK – Transmits large number of ACK/NACK bits: • Up to 10 ACK/NACK bits for FDD • Up to 20 ACK/NACK bits for TDD – Not based on Zadoff-Chu sequences, uses similar to PUSCH transmissions (DFT-S-OFDM) – QPSK modulation PUCCH: uplink control
  17. 17. © 2012 Agilent Technologies 17 © 2012 Agilent Technologies Agenda • Overview of carrier aggregation – Carrier aggregation modes – Operating bands – Cell configuration – Deployment scenarios – Layer 1 and 2 structure – Resource scheduling • Design challenges • Test challenges • Agilent solutions • Resources
  18. 18. © 2012 Agilent Technologies 18 © 2012 Agilent Technologies UE Transmitter Architecture for Various Intra-Band Aggregation Scenarios RF PA RF filter Multiplex 1 and 2 BB D/AIFFT L1 Single (baseband + IFFT + DAC + mixer + PA) Aggregation Scenario: Intra-band contiguous Multiplex 1 BB Multiplex 2 BB IFFT IFFT D/A D/A L1 RF PA L2 RF filter Multiple (baseband + IFFT + DAC), single (stage-1 IF mixer + combiner @ IF + stage-2 RF mixer + PA) Aggregation Scenarios: Intra-band contiguous and non- contiguous Multiplex 1 BB Multiplex 2 BB IFFT IFFT D/A D/A RF PA RF filter L2 L1 Multiple (baseband + IFFT + DAC + mixer), low- power combiner @ RF, and single PA Aggregation Scenarios: Intra-band contiguous and non-contiguous Scenario A Scenario B Scenario C Reference: 3GPP TR 36.912 v.10.0.0. Figure 11.3.2.1-1
  19. 19. © 2012 Agilent Technologies 19 © 2012 Agilent Technologies UE Receiver Architecture Rx Characteristics Option Description (Rx architecture) Intra Band aggregation Inter Band aggregation Contiguous (CC) Non contiguous (CC) Non contiguous (CC) A Single (RF + FFT + baseband) with BW>20MHz Yes B Multiple (RF + FFT + baseband) with BW≤20MHz Yes Yes Yes Option A Single wideband-capable (i.e., >20MHz) RF front end (i.e., mixer, AGC, ADC) and a single FFT, or alternatively multiple "legacy" RF front ends (<=20MHz) and FFT engines. Option B In the case non adjacent Inter band separate RF front end are necessary. Reference: 3GPP TR 36.912 v.10.0.0.
  20. 20. © 2012 Agilent Technologies 20 © 2012 Agilent Technologies SystemVue LTE-Advanced Carrier Aggregation Scenario number Deployment scenario Transmission BWs of LTE-A carriers # of LTE-A component carriers Bands for LTE-A carriers Duplex modes 1 Single-band contiguous spec. alloc. @ 3.5GHz band for FDD UL: 40 MHz DL: 80 MHz UL: Contiguous 2x20 MHz CCs DL: Contiguous 4x20 MHz CCs 3.5 GHz band FDD 2 Single-band contiguous spec. alloc. @ Band 40 for TDD 100 MHz Contiguous 5x20 MHz CCs Band 40 (2.3 GHz) TDD 4 Single-band, non-contiguous spec. alloc. @ 3.5GHz band for FDD UL: 40 MHz DL: 80 MHz UL: Non-contiguous 1x20 + 1x20 MHz CCs DL: Non-contiguous 2x20 + 2x20 MHz CCs 3.5 GHz band FDD Re Im Env 1 1 0 1 0 1 1 0 1 0 UE1_Dat a HARQ _Bit s f r m _TD f r m _FD UE1_M odSym bols UE1_ChannelBit s SC_St at us UE1_PM I LTE_A DL Src UEs_n_SCID=0;0;0;0;0;0 [[0, 0, 0, 0, 0, 0]] UserDefinedAntMappingMatrix=NO LTE_A_DL_Src_2 Fc Change Spect rum Anal yzer CCDF Stop=10ms Start=0s CCDF_CA CCDF Stop=10ms Start=0s WoCA Mod OUT QUAD OUT Freq Phas e Q I Am p Im 1 1 0 1 0 1 1 0 1 0 UE1_Dat a HARQ _Bit s f r m _TD f r m _FD UE1_M odSym bols UE1_ChannelBit s SC_St at us UE1_PM I LTE_A DL Src Mod OUT QUAD OUT Freq Phas e Q I Re Im Mod OUT QUAD OUT Freq Phas e Q I Am p 1 1 0 1 0 1 1 0 1 0 UE1_Dat a HARQ _Bit s f r m _TD f r m _FD UE1_M odSym bols UE1_ChannelBit s SC_St at us UE1_PM I LTE_A DL Src UEs_n_SCID=0;0;0;0;0;0 [[0, 0, 0, 0, 0, 0]] UserDefinedAntMappingMatrix=NO LTE_A_DL_Src_1 20MHzC Cs
  21. 21. © 2012 Agilent Technologies 21 © 2012 Agilent Technologies Design Challenges – Intra-Band CA • Several technical challenges, especially for a UE • From RF perspective, intra-band contiguous aggregated carriers have similar properties as a corresponding wider carrier being transmitted and received. • Release 10 requires more stringent linearity requirements on the power amplifier than Release 8/9 – UE will need to use less transmitter power for the amplifier to remain in the linear region • Use of multiple CC on UL should be optional and only used for cases where UEs are not at the cell edge. • For the base station, it has less impact - it corresponds in practice to multi-carrier configuration already supported in earlier releases. Example of CCDF plot using N7624B LTE/LTE- Advanced Signal Studio software 2 uplink contiguous CCs Single uplink CC
  22. 22. © 2012 Agilent Technologies 22 © 2012 Agilent Technologies Design Challenges – Inter-Band CA • Major challenge for the UE – Multiple simultaneous receive chains – Multiple simultaneous transmit chains • Challenging radio environment in terms of intermodulation and cross-modulation within the UE device – Need to design front-end components that help reduce harmonics, and other intermodulation products, which meet 3GPP requirements. • Simultaneous transmit or receive with mandatory MIMO support add significantly to the challenge of antenna design • For the base station it has less impact – similar to current base stations supporting multiple bands. Multiplex 1 BB Multiplex 2 BB IFFT IFFT D/A D/A RF PA RF filterL2 L1 RF PA RF filter RF filter Multiple (baseband + IFFT + DAC + mixer + PA), high-power combiner to single antenna OR dual antenna (MIMO) Reference: 3GPP TR 36.912 v.10.0.0. Figure 11.3.2.1-1
  23. 23. © 2012 Agilent Technologies 23 © 2012 Agilent Technologies Agenda • Overview of carrier aggregation – Carrier aggregation modes – Operating bands – Cell configuration – Deployment scenarios – Layer 1 and 2 structure – Resource scheduling • Design challenges • Test challenges • Agilent solutions • Resources
  24. 24. © 2012 Agilent Technologies 24 © 2012 Agilent Technologies Test Challenges: Power Amplifier Characterization Agilent Solution: • Signal Studio software generates LTE- Advanced downlink and uplink signals to test power and modulation characteristics of components and transmitters. • Supports up to 5 component carriers within up to 160 MHz I/Q bandwidth with MXG vector signal generator • Investigate effects of carrier aggregation on components including PAR and CCDF Test Challenge: Characterizing the LTE-Advanced UE or eNB power amplifier presents RF challenge. The different carrier aggregation configurations will stress the amplifier in different ways since each will have different peak-to-average ratios. Configure up to 5 component carriers
  25. 25. © 2012 Agilent Technologies 25 © 2012 Agilent Technologies SystemVue LTE-Advanced Carrier Aggregation Scenario Link Configuration PAPR of single CC, before aggregation PAPR with CCs, after aggregation Scenario 1 FDD DL 4x20 MHz CCs 8.45 dB 9.98 dB Scenario 2 TDD DL 5x20 MHz CCs 9.17 dB 11.71 dB Scenario 4 FDD DL 2x20+2x20MHz 8.38 dB 9.58 dB FDD UL 20 + 20MHz 5.79 dB 6.86 dB Scenario 1 FDD DL Scenario 2 TDD DL Scenario 4 FDD DL Scenario 4 FDD UL
  26. 26. © 2012 Agilent Technologies 26 © 2012 Agilent Technologies Test Challenges: Analyze the Multiple Transmit and Receive Chains Simultaneously Agilent Solutions: 89600 VSA software  Inter-band and intra-band carrier aggregation support for both uplink and downlink, FDD and TDD Hardware: X-Series signal analyzers or N7109A multi-channel signal analyzer Two component carriers at 800 MHz One component carrier at 2100 MHz Test Challenge: For Release 10, the multiple component carriers must arrive at the receiver at the same time, time alignment error of 1.3 µs for inter-band and 130 ns for intra-band. This requires simultaneous demodulation of the multiple component carriers
  27. 27. © 2012 Agilent Technologies 27 © 2012 Agilent Technologies LTE-Advanced Signal Analysis: 89600 VSA Carrier Aggregation • FDD and TDD per 3GPP Release 10 • Inter-band and intra-band for UL and DL • Analyze up to five component carriers (CCs) simultaneously: – Up to 160 MHz analysis bandwidth on PXA for intra-band CA – Multi-channel signal analyzer for inter-band CA – Independent measurement setup, including varying bandwidths, for individual CCs – Rich selection of EVM measurements plus CCDF, freq response and more • Strenuous in-band and out-of-band spurious and interference testing is possible with PXA’s industry best RF performance
  28. 28. © 2012 Agilent Technologies 28 © 2012 Agilent Technologies 89600 VSA: Setting up the LTE-Advanced Demodulator Measurement example for setting up component carriers, including: FDD / TDD UL / DL Bandwidth & span Sync type Up to 5 component carriers, both inter-band and intra-band configuration.
  29. 29. © 2012 Agilent Technologies 29 © 2012 Agilent Technologies ≈ Resourceblock Inter-Band Carrier Aggregation Analysis Band A Band B N7109A OR Test Challenge: Demodulating inter-band carrier aggregated signals require signal analyzer with bandwidth that spans multiple frequency bands (ex. 800 MHz and 2100 MHz) •10 MHz Freq ref. •Time sync CC from “Band A” CC from “Band B” Dual signal analyzer Agilent’s Unique Solution:  Dual input hardware, fully synchronized , plus 89600 VSA software. VSA software acquires all the CCs simultaneously, demodulate the captured signals, and analyze them all simultaneously Two CCs at 800 MHz Three CCs at 2100 MHz
  30. 30. © 2012 Agilent Technologies 30 © 2012 Agilent Technologies Inter-Band Carrier Aggregation Analysis Allocated resources per component carrier Constellation diagram per component carrier Spectrum of two CCs at 800 MHz Frame summary per component carrier Spectrum of three CCs at 2100 MHz
  31. 31. © 2012 Agilent Technologies 31 © 2012 Agilent Technologies Test Challenges: Simultaneous analysis of Inter-Band Aggregation plus downlink MIMO Agilent Solutions: • N7109A multi-channel signal analysis system: 2, 4 or 8 channels, 40 MHz demodulation BW per channel • Pick and choose how you want to use the 8 channels (ex. 4x4 MIMO on two inter-band component carriers or 2x2 MIMO on four inter-band component carriers) Test Challenge: when inter-band carrier aggregation is combined with spatial multiplexing MIMO, it requires test tools that has a minimum of 4 inputs (two inputs per CC). Up to 8 channels MIMO Info trace for CC0 MIMO Info trace for CC1 Frequency response for CC0 Frequency response for CC0 Constellation for CC0 Constellation for CC1 Example of 2x2 MIMO and inter-band carrier aggregation with two component carriers
  32. 32. © 2012 Agilent Technologies 32 © 2012 Agilent Technologies Agenda • Overview of carrier aggregation – Carrier aggregation modes – Operating bands – Cell configuration – Deployment scenarios – Layer 1 and 2 structure – Resource scheduling • Design challenges • Test challenges • Agilent solutions • Resources
  33. 33. © 2012 Agilent Technologies 33 © 2012 Agilent Technologies Agilent LTE and LTE-Advanced Portfolio Signal Generators RDX for DigRF v4 Systems for RF and Protocol Conformance RF Module Development RF Proto RF Chip/module Design Simulation BTS and Mobile BB Chipset Development L1/PHY FPGA and ASIC Conformance RF and BB Design Integration L1/PHY System Design Validation System Level RF Testing BTS or Mobile Protocol Development L2/L3 DigRF v4 Pre-Conformance Network Deployment Manufacturing 89600 VSA SystemVue (BB) ADS/GG (RF/A) N5971A IFT Software Scopes and Logic Analyzers Baseband Generator and Channel Emulator Signal creation software RF Handheld Analyzers Manufacturing test platforms Battery drain characterization N6070A LTE signaling conformance test RF & Protocol test platforms Signal Analyzers with LTE Measurement Apps 89600 WLA N7109A Multi-Channel Signal Analysis System
  34. 34. © 2012 Agilent Technologies Summary • Carrier aggregation is one of the most important features for LTE- Advanced enabling: – Higher data rates – Facilitate efficient use of fragmented spectrum – Interference management in heterogeneous networks • It is introduced in LTE Release 10 with deployment of two component carriers and will be extended with Rel. 11and beyond • It introduces various design challenges, especially for UE • Test challenges for multi-carrier EVM requiring simultaneous demodulation of both inter-band and intra-band signal configurations • Agilent was first to market with LTE-Advanced solution addressing system simulation, signal generation and analysis tools 34
  35. 35. © 2012 Agilent Technologies 35 © 2012 Agilent Technologies For More Information Agilent Resources • LTE-Advanced application and product info: www.agilent.com/find/lteadvanced • 89600 VSA product information: www.agilent.com/find/vsa • X-Series signal analyzer product information: www.agilent.com/find/xseries • N7109A multi-channel signal analyzer information: www.agilent.com/find/N7109A • Signal Studio product information: www.agilent.com/find/signalstudio Key LTE-Advanced Documents • Historical documents: – Study Item RP-080599: ftp://ftp.3gpp.org/tsg_ran/TSG_RAN/TSGR_41/Docs/RP-080599.zip – Requirements TR 36.913 v9.0.0 (2009-12): ftp://ftp.3gpp.org/Specs/html-info/36913.htm – Study Phase Technical Report TR 36.912 v9.3.0 (2010-06): ftp://ftp.3gpp.org/Specs/html- info/36912.htm • The LTE-A specifications are now drafted in the Release 10 specifications ftp.3gpp.org/specs/latest/Rel-10/
  36. 36. © 2012 Agilent Technologies THANK YOU!

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