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8.2.1.5 ADVANCED INTER‐CELL INTERFERENCE COORDINATION Another simple CoMP transmission scheme which relies on resource management cooperation among eNBs for controlling inter-cell interference is an efficient way to improve the cell edge spectral efficiency. The Inter-Cell Interference Coordination (ICIC) enhancement currently being studied for LTE-Advanced can be classified into dynamic Interference Coordination (D-ICIC) and Static Interference Coordination (S- ICIC). In D-ICIC, the utilization of frequency resource, spatial resource (beam pattern) or power resource is exchanged dynamically among eNBs. This scheme is flexible and adaptive to implement the resource balancing in unequal load situations. For S-ICIC, both static and semi-static spatial resource coordination among eNBs are being considered. The advanced ICIC techniques were defined in Rel-10 for Macro-Pico scenarios. Further advancement to these schemes may be studied in Rel-11 as discussed in Section 8.2.3. 8.2.1.6 PERFORMANCE RESULTS Figure 8.3 shows the possible system performance gain determined from system simulation with the various CoMP techniques in the downlink. The simulations assumptions were consistent with that agreed to in 3GPP. 129 The CoMP techniques investigated include: � Coordinated Beam Switching (CBS) � Non-Coherent Joint Processing (JP-Nco) � Coherent Joint Processing (JP-Co) � CBF � Intra-Site Coherent JP Quantized feedbacks were assumed for CBS with SU-MIMO and Intra site JP with MU-MIMO while idealized feedbacks were assumed for the other schemes. Figure 8.3 illustrates that significant cell edge and cell average throughput gain is possible. 129 3GPP TR 36.814, Further Advancements for E-UTRA, Physical layer Aspects. www.4gamericas.org February 2011 Page 84
8.2.2 CARRIER AGGREGATION Figure 8.3. Potential Gain of <strong>DL</strong> CoMP. In Rel-10, the carrier aggregation work in RAN4 was focused mainly on generic intra-band and inter-band cases. As discussed in Section 7.4, carrier aggregation will be treated as a release independent feature. Thus, the Rel-11 work item process will concentrate on band-specific issues related to RF performance, inter-mod analysis and conformance testing for a real carrier aggregation band combination (which can be included in TS 36.307 prior to the completion of Rel-11 as explained in Section 7.4). While many band combinations are expected to be studied over the next few years, RAN-4 and RAN-5 will have early focus on the following combinations: a. Inter-band carrier aggregation of Band-4 and Band-13 b. Inter-band carrier Aggregation of Band-4 and Band-17 8.2.3 ENHANCED ICIC The inclusion of Enhanced ICIC topics has been postponed until March 2011. The following items were proposed to be studied under this item: a. Data channel ICIC enhancements, e.g., FDM/TDM coordination and enhanced signaling for resource allocation b. Higher layer enhancements, e.g., for idle mode operation and mobility enhancements (RAN1, RAN2, RAN3, RAN4) c. Uplink enhancements (e.g. uplink interference mitigation for Macro-Pico and Macro-Femto) www.4gamericas.org February 2011 Page 85
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www.4gamericas.org February 2011 Pa
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7.3.1 Home NodeB/eNodeB enhancement
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D.2 TARGET REQUIREMENTS FOR 3GPP LT
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downlink throughput of up to 21 Mbp
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eceivers. Examples of advanced rece
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1 INTRODUCTION Wireless data usage
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2 PROGRESS OF RELEASE 99, RELEASE 5
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HSDPA network in February, followed
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download speeds of up to 8 Mbps aim
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Since around 2005, some research fi
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As operators evolve their networks
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One of key elements of the LTE/SAE
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In 2008, a top vendor unveiled the
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3 PLANS FOR RELEASE 9 AND RELEASE 1
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4 THE GROWING DEMANDS FOR WIRELESS
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to address network congestion issue
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Page 35 and 36: accounted for 12 percent of total r
Page 37 and 38: various mobile data services have o
Page 39 and 40: devices to turn them into full-fled
Page 41 and 42: spectrum for mobile broadband use.
Page 43 and 44: MME S1-MME S11 eNode IP GW S1-U Fig
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Page 49 and 50: 6.2 THE 3GPP ROLE Figure 6.1. Progr
Page 51 and 52: 7 STATUS OF RELEASE 10: HSPA+ ENHAN
Page 53 and 54: Figure 7.2. An Illustration of NxDF
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Page 59 and 60: to in 3GPP. 117 The simulation scen
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Page 67 and 68: Local IP Access provides access for
Page 69 and 70: 7.3.3 FIXED MOBILE CONVERGENCE ENHA
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Page 79 and 80: E-UTRA CA Band E-UTRA operating Ban
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Page 93 and 94: 8.4.7 FIXED MOBILE CONVERGENCE The
Page 95 and 96: 9 CONCLUSIONS Wireless data usage c
Page 97 and 98: Communications Research demo lab in
Page 99 and 100: increases through load balancing an
Page 101 and 102: support the most heavily loaded and
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Page 111 and 112: APPENDIX B: UPDATE OF RELEASE 9 STA
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Page 115 and 116: B.2.1.4 PDN GW SELECTION FUNCTION (
Page 117 and 118: The subscribers of participating CM
Page 119 and 120: 3GPP TS 29.168. Cell Broadcast Cent
Page 121 and 122: � Gateway Mobile Location Center
Page 123 and 124: CELL ID METHOD This is the simplest
Page 125 and 126: Figure B.4. 1xRTT CSFB Architecture
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Page 129 and 130: o Includes concurrent 1xRTT and HRP
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B.2.6 SELF‐ORGANIZING NETWORKS (S
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cross-talk suppression. The downlin
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eNodeB solutions. Rel-8 defined the
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UE HeNB LTE-Uu C1 (OMA DM /OTA) S1
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Server. The latter capability allow
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Denoted by � i the number of corr
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Table C.2. Cell Edge User Spectral
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C.1.7 HANDOVER The handover interru
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APPENDIX D: LTE‐ADVANCED AND SELF
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2 Linked work items (list of linked
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d) To develop documents that will s
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Full‐buffer spectrum efficiency E
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Uplink peak spectrum efficiency •
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Cell‐average and Cell‐edge spec
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Cell‐average and Cell‐edge spec
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Antenna configuration (C) VoIP resu
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APPENDIX F: THE ITU‐R IMT‐ADVAN
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ITU-R Outside ITU-R Step 1 Circular
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APPENDIX G: GLOBAL HSPA & HSPA+ DEP
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Africa Réunion SFR Reunion In Serv
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Latin America & Caribbean Jamaica C
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Asia Pacific Malaysia DiGi (Telenor
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Eastern Europe Czech Republic Mobil
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Eastern Europe Slovenia T‐2 In De
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Western Europe Liechtenstein mobilk
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US/Canada Canada Bell Wireless Affi
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Latin America Colombia UNE Planned
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Eastern Europe Armenia Orange Armen
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Western Europe Andorra STA Planned
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Middle East Saudi Arabia Etihad Eti
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C/I Carrier to Interference Ratio (
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FER Frame Erasure Rate FFR Fraction
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LI Lawful Intercept LIPA Local Inte
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PHICH Physical Hybrid ARQ Indicator
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TAU Target Acquisition and tracking
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ACKNOWLEDGMENTS The mission of 4G A
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