1 / 22

Dual Cell

Dual Cell. 1900 MHz/800 MHz Integration. 1900. 800. TDMA/136 - Merging of 800 & 1900 deployments. Increase capacity Increase coverage - new licenses enabling extended coverage Full coverage from day one! - dual mode/dual band phones Re-use of existing infrastructure

deanne
Download Presentation

Dual Cell

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Dual Cell

  2. 1900 MHz/800 MHz Integration 1900 800

  3. TDMA/136- Merging of 800 & 1900 deployments • Increase capacity • Increase coverage - new licenses enabling extended coverage • Full coverage from day one! - dual mode/dual band phones • Re-use of existing infrastructure • Better trunking efficiency TDMA 1900 TDMA 800 TDMA 1900

  4. TDMA/136 - The dual-band standard Dual-band/dual-mode terminal 800 MHz AMPS/TDMA & 1900 TDMA 800 MHz AMPS/TDMA 1900 MHz TDMA An example of how an operator can get nationwide coverage by merging 800 & 1900 MHz deployments

  5. One System 800 1900MHz 800MHz MSC (ICMS8800) 800 1900MHz 1900MHz

  6. Infrastructure Reuse TCB ANP MSC CRI ATCC PSTN GS Rx MTRAC NTSW RTT TRX MC EMRPS ATC Tx ETC ETB STR EMRP

  7. POWD CRI POWD POWD Prim TCB c ATCC c ATCC c CRI TCB a POWD TCB b 1/2 CRI TCB c Main TCB c ANPC 1 ANPC 2 CRI TCB f ANPC a TCB a ANPC b TCB b ANPC c ATCC c TCB b ATCC b ATCC b TCB e ATCC a ATCC a ATCC b ATCC b ATCC c Prim TCB c TCB a ATCC a ATCC a TCB d TCB a TCB a TCB b TCB b TCB c Base Stations in 1900MHz Band RBS 884 Macro (1900MHz) • 3X15 Maximum • Up to 15 carriers per cell • City and Rural applications RBS 884 Micro (1900MHz) • 3x4 Maximum • Up to 12 carriers per site • City and in building applications RBS 884 Macro Quad (1900MHz) • 3X16 Maximum • Up to 16 carriers per cell • Rural applications

  8. POWD POWD CRI TCB ANPC 2 ANPC 1 CRI TCB TCB TCB ATCC 1 ATCC 2 TCB TCB TCB ATCC 1 ATCC 2 TCB ATCC 1 ATCC 2 TCB TCB TCB Base Stations in 800MHz Band RBS 884 Micro • Indoor sites • 24 dBm • 24carriers/cell RBS 884 Pico • Indoor sites <20 dBm • 4 carriers/cell RBS 884 Micro With MCPA • City and rural sites • 36 dBm • 24 carriers/cell RBS 884 Macro • City and rural sites • Three power classes: 36 dBm 40 dBm 44 dBm • 32 carriers/cell

  9. Better Trunking Efficiency • Common trunking group means higher capacity. Example: 20 + 20 Channels One System: 30.1 Erlang @ 2% GOS Separate Systems: 26.4 Erlang @ 2% GOS => 14% Higher Capacity with CMS8800. • Same coverage assumed

  10. 1900 and 800 Coverage Issues R1 • Due to different propagation, 1900 MHz gives smaller radius at same output power. 800 1900 800 • Only when range is noise limited, i.e. rural sites. • Urban sites is usually C/I limited 0.7R1 800

  11. System Configuration Either create hand-off zones (1900-800-1900) or Deploy new 1900 sites to over the inter-hyperband hand-off corridor Use existing sites when possible 800 800 800 1900 800 1900 1900 800 800 800

  12. Hand Off • MAHO-List Cell A 850 Cell B 1900 Cell D 850 Cell C 850 1900 850

  13. Hyperband Handoff Using the HCS Algorithm Standard 1900 layer Preferred Non Preferred 850 layer

  14. HCS Macro Cell – Micro Cell Hand-Off Macrocell 1 Microcell 2 & 3: Standard Microcells 4: Preferred Microcell 3 Microcell 2 Microcell 4 SS-SUFF Sel. 1 Sel. 2 Sel. 4 Sel. 1 Sel. 1

  15. Dual Cell Verification • When the 850 and 1900 are co-located • Ability to use the 850 MHz MVER to verify the 1900 Handoff 1900 850 to 1900 Hand off 850 1900 850 MVER MVER

  16. Border Areas • When leaving the 1900 coverage area • 1900 MVER is needed in the neighbor cell • Ability to use the 1900 MHz MVER to verify the 850 Handoff 1900 1900 850 to 1900 Hand off 850 850 1900 850 850 1900 MVER MVER MVER MVER

  17. Border Issues 800 MHz buffer zone with 1900 co-located sites 800 1900 800 800 800 800 1900 800 800 1900 800

  18. 1900 layer Using SSSUF in the Border Areas Standard SSSUF= x dB SSSUF=x+10 dB 850 layer

  19. 1900 coverage for the verification device Border Issue • It is recommended to have 1900 verification device (LVM) for 1900/800 handoff. • The 1900 LVM must have same coverage as the 800 cell. 1900 800 • Only when range is noise limited, i.e. rural sites. • Urban sites is usually C/I limited.

  20. Network Support 1900 MHz DTC ACELP Codec MSC (TDMA/136.0) MSC (TDMA/136.A) MSC (Other vendor MSC with level of functionality < TDMA/136.A) 1900MHz to 800MHz (Analog) 800 MHz(ACELP) to 800 MHz (Analog) 800 MHz (Analog) to 800 MHz (A/D) 800 MHz (VSELP) to 800 MHz (A/D) MSC (IS-54.B) IS-41.C or lower/MTUP 1900 MHz to 1900 MHz 1900MHz to 800MHz (A/D) 800 MHz(ACELP) to 800 MHz (A/D) 800 MHz (Analog) to 800 MHz (A/D) 800 MHz (VSELP) to 800 MHz (A/D) MSC (TDMA/136.A) IS-41.C + TSB76 (PCS Multi-Band Support)

  21. Standard Support • 1900 MHz systems take full advantage of the functionality provided by TDMA/136.A and thereby are fully integrated to their the 800 MHz counterpart Bi-directional Inter-Hyperband Handoff Bi-directional Inter-Hyperband Directed Retry Multi Hyperband Capable Best Server Selection support • Network inter-operability is fully supported by IS-41.C + TSB76 Inter-system Inter-Hyperband Handoff Full roaming support • Ericsson supports dual band-dual mode systems as of Release C.

  22. 1900 MHz systems can be deployed based on existing infrastructure Same functionality is offered on both 1900 MHz and 800 MHz hyperbands which allows for both capacity driven and service driven deployment Level of integration depends on customer commercial strategy Considerations might be taken when inter-operating towards ‘other vendor’ systems which level of functionality is not compatible with PCS systems Conclusions

More Related