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RAN 4 Report RP-070277

This report highlights the recent RAN4 meetings, discussions on corrections to specifications, and the approval of CRs for different releases. Key topics include spurious emission limits, CQI reporting, MIMO, low chip rate E-DCH, UE antenna performance, improved performance requirements, and LTE progress.

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RAN 4 Report RP-070277

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  1. RAN 4 ReportRP-070277 Howard Benn RP-070277 Slide 0

  2. Summary • 2 meetings since last RAN meeting • Adhoc in Sophia Antipolis, main meeting in Kobe • Consistent number of delegates (around 100) • 400 input contributions in Kobe • Corrections to the specification (cat B,C & F numbers) • Release 99 – CRs • Release 4 – CRs • Release 5 - CRs • Release 6 – CRs • Release 7 - CRs • There will be 2 WG meeting before the next plenary. RP-070277 Slide 1

  3. R99 – Rel-5 Highlights • R99 • Category B spurious emission limits for TDD BS and repeater reflecting new limits agreed with CEPT/ECC • Rel – 4 • Rel – 5 • Correction to Node B test model • Corrections to low chip rate TDD HSDPA • Looking at a new method to measure the CQI reporting, this is probably take a few meetings to resolve RP-070277 Slide 2

  4. Rel-6 Highlights • TEI-6 RP-070277 Slide 3

  5. TEI - 7 • High speed train requirements • Uplink and downlink simulations completed • CRs with performance requirements approved • Correction of Test Case for Inter-system Handover from UTRAN FDD to GSM • Introduction of band X into the repeater specification • Repeater ACRR description • RRM test cases for UE with multiple receive antennas • Result of RAN 1 CR on linear average • Work needed to complete CR RP-070277 Slide 4

  6. TEI-8 • Proposal to add 15 code 16 QAM requirements • Request to spec clock accuracy on IuB • Passed to plenary for discussion of which working group this falls under RP-070277 Slide 5

  7. Work and Study Items RP-070277 Slide 6

  8. Highlights • MIMO • Work continues • Low Chip rate E-DCH • Simulation results presented • CRs approved • UE Antenna Performance Evaluation Method and Requirements • Discussion continues • Proposal to work with COST 2100 • Follows on from COST273 • LMU performance spec • Simulation assumption presented • Initial simulation results • Work continues RP-070277 Slide 7

  9. Improved performance requirements • Further Improved Performance Requirements for UMTS/HSDPA UE (FDD) • Dynamic reconfigurable receivers • Questions raised on impact to network RP-070277 Slide 8

  10. Others • CPC • Simulation results presented for ideal and implementation margin • Demod performance CR approved • 16 QAM uplink • Work proceeding • One more meeting cycle needed • 64 QAM downlink • Work proceeding • Performance CRs approved • Few issues – see status report • One more meeting cycle needed RP-070277 Slide 9

  11. MBSFN • New channel model under discussion • First set of simulations performed • Type 3i performance requirements • Discussed testing scenarios to reduce complexity • UMTS 1500 • TR approved • Enhanced cell FACH testing • Question over which release performance requirements should be in ? RP-070277 Slide 10

  12. Interference mitigation study item • Simulations showed limited performance improvements • Agreed no need to standardise performance • Home Node B • Work started • Conference call before the Orlando meeting to progress the work RP-070277 Slide 11

  13. LTE • Close to being on schedule • Channel options below 5 MHz • 1.4 MHz and 3 MHz proposed by a number of companies but not agreed • PHS co-existence • Still working on a solution • UE TR • Baseline transmitter requirements agreed • Baseline RF receiver performance agreed • Channel models agreed • Work plan for demodulation requirements agreed RP-070277 Slide 12

  14. Meeting schedule RP-070277 Slide 13

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