Mobile broadband spectrum needs and harmonization
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Mobile Broadband: Spectrum Needs and Harmonization. Veena Rawat VP, Ambassador to the ITU Research In Motion. Private and public partnership for mobile broadband access. Radio frequency spectrum is an essential resource for wireless access networks

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Mobile broadband spectrum needs and harmonization

Mobile Broadband:Spectrum Needs and Harmonization

Veena Rawat

VP, Ambassador to the ITU

Research In Motion


Private and public partnership for mobile broadband access
Private and public partnership for mobile broadband access

  • Radio frequency spectrum is an essential resource for wireless access networks

  • Developing national mobile broadband capabilities is an area of high priority for many administrations

    • Assign spectrum for the greatest national benefit

    • A key policy element is to provide access to broadband networks in rural and remote areas

  • Mobile broadband can provide wireless access for rural and remote areas

    • New mobile broadband technologies, such as LTE, can provide traditional ‘fixed’ access and as well as new mobile applications in rural and remote areas

  • Spectrum harmonization (local, regional and globally) is the key component for mobile broadband networks to achieve benefits of economies of scale and increase spectrum efficiency


Mobile broadband technology for high capacity and large coverage
Mobile broadband technology for high capacity and large coverage

  • Technology is ready for flexible and large spectrum use

    • LTE-Advanced can support up to 100 MHz aggregated spectrum for high data rate and high user capacity

    • Contiguous spectrum is preferred to take advantage of this technology

  • Large spectrum bandwidth is also a tool to extend cell coverage – advantage for rural

    • For the same data rate, link budget is improved by transmitting on larger bandwidth with more power efficient modulation/coding scheme, e.g. QPSK and/or lower code rate.

  • The challenge is the implementation of multiple spectrum bands, especially in the user equipment

    • Multiple bands and carrier aggregation increase the complexity of RF front-end

    • Contiguous spectrum is preferred

Note 2: 3GPP Rel-10/11 specifications(LTE-Advanced), operation band can be up 5x20MHz total spectrum by aggregating 5 carriers, each of which can be up to 20 MHz bandwidth


Implementation complexity of handset smartphone
Implementation complexity of handset/smartphone

E-UTRA(LTE) operating bands

  • Support legacy cellular bands

    • GSM/PCS/AWS/CDMA

  • More than 30 band classes defined for LTE

    • With Intra-band or inter-band carrier aggregation

  • Co-exist with other radio bands

    • WiFi/Bluetooth/GPS/NFC

  • Spectrum harmonization required to reduce device implementation complexity


Technologies and bands
Technologies and Bands

  • Mobile phones are required to support a wide range of wireless technologies

    • Users prefer a single device for access to all services

  • In most devices, diversity antennas are a minimum and five or more antenna sets are generally needed in a smart phone.

GSM

UMTS

EDGE

WCDMA

CDMA

EVDO

GSM

UMTS

EDGE

WCDMA

CDMA

EVDO

WLAN/WiMax

BT

NFC

LTE

GPS

700

800

950

1575

13.56

1700

1900

2400

5800 (MHz)

Diversity

Diversity

Diversity


Antenna placement in the handset
Antenna Placement in the Handset

Challenges

  • Where to put multiple antennas?

  • Distance between PCB/bracket and antenna should be >3mm (BT, GPS, WiFi and WiMax); for low bands it should be even higher.

  • Space under antenna element should be clear of any shields, flexes, or components

  • Large batteries limit the space allocated for the antennas.

  • Components (such as shield cans, speaker, camera) may be directly behind the antennas.

  • Smart phone also includes NFC

4G

Diversity

WiFI

Bluetooth &

GPS

Main


Spectrum harmonization for mobile broadband
Spectrum Harmonization for mobile broadband

  • For the near term, the following spectrum is under consideration for mobile broadband and must be harmonized:

    • Digital Dividend 600/700/800 MHz

    • Remaining part of 1710 – 2200 MHz

    • 2500 – 2690 MHz



1710 2200 mhz
1710 – 2200 MHz

R2

1710

1850

1980

2180

1930

2000

2025

2110

2155

FIXED / MOBILE

FIXED/MOBILE

MSS

MSS

MOBILE

MSS

FIXED

MOBILE

2025 – 2110 MHz EESS/SPACE/FIXED/mobile

Canadian

2180

1710

1755

1850

1910

1930

1990

2000

2025

2110

2155

2200

AWS

PCS

PCS

MSS

AWS

MSS

MOBILE

MSS

LE-PCS

MOBILE

MOBILE

2025 – 2110 MHz EESS/SPACE/FIXED/mobile

Canadian Frequency Allocation: C37 (CAN-06) The designation of the bands 1755-1 780 MHz, 2 020-2 025 MHz and 2 155-2 180 MHz for Advanced Wireless Services may be the subject of a future public consultation.


2500 2690 mhz
2500-2690 MHz

ITU options for Band Plan

3GPP/LTE Band Plan

2500

2570

2620

2690

LTE band 7

FDD - UL

LTE band 38

TDD

LTE band 7

FDD - DL


Harmonization and wrc 15
Harmonization and WRC-15

  • WRC-15 provides the next opportunity for harmonization at regional and global level

    • Agenda Item 1.1 to consider additional spectrum allocations to the mobile service on a primary basis and identification of additional frequency bands for International Mobile Telecommunications (IMT) and related regulatory provisions, to facilitate the development of terrestrial mobile broadband applications, in accordance with Resolution COM6/8 (WRC-12);

    • Agenda Item 1.2 to examine the results of ITU-R studies, in accordance with Resolution COM5/10(WRC-12), on the use of the frequency band 694-790 MHz by the mobile, except aeronautical mobile, service in Region 1 and take the appropriate measures;


Summary
Summary

  • Mobile broadband enabled by the current technology and has the advantage and flexibility to provide services and applications to wide range of regions, including rural and remote areas

  • Spectrum harmonization is the necessity for mobile broadband

    • Mobile broadband access prefers contiguous spectrum

  • Preparation for WRC-15 provides is opportunity to align harmonization and additional spectrum for mobile broadband



Digital dividend in region 21
Digital Dividend in Region 2

5.292 Different category of service:  in Mexico, the allocation of the band 470‑512 MHz to the fixed and mobile services, and in Argentina, Uruguay and Venezuela to the mobile service, is on a primary basis (see No. 5.33), subject to agreement obtained under No. 9.21.    (WRC‑07)

MOD

5.293 Different category of service:  in Canada, Chile, Cuba, the United States, Guyana, Honduras, Jamaica, Mexico, Panama and Peru, the allocation of the bands 470-512 MHz and 614-806 MHz to the fixed service is on a primary basis(see No. 5.33), subject to agreement obtained under No. 9.21. In Canada, Chile, Cuba, the United States, Guyana, Honduras, Jamaica, Mexico, Panama and Peru, the allocation of the bands 470-512 MHz and 614-698 MHz to the mobile service is on a primary basis(see No. 5.33), subject to agreement obtained under No. 9.21. In Argentina and Ecuador, the allocation of the band 470-512 MHz to the fixed and mobile services is on a primary basis (see No. 5.33), subject to agreement obtained under No. 9.21.     (WRC‑12)

5.297  Additional allocation:  in Canada, Costa Rica, Cuba, El Salvador, the United States, Guatemala, Guyana, Honduras, Jamaica and Mexico, the band 512-608 MHz is also allocated to the fixed and mobile services on a primary basis, subject to agreement obtained under No. 9.21.     (WRC‑07)

5.309  Different category of service:  in Costa Rica, El Salvador and Honduras, the allocation of the band 614-806 MHz to the fixed service is on a primary basis (see No. 5.33), subject to agreement obtained under No. 9.21.

5.313B Differentcategory of service:  in Brazil, the allocation of the band 698-806 MHz to the mobile service is on a secondary basis (see No. 5.32).     (WRC‑07)

MOD

5.317A Those parts of the band 698-960 MHz in Region 2 and the band 790-960 MHz in Regions 1 and 3 which are allocated to the mobile service on a primary basis are identified for use by administrations wishing to implement International Mobile Telecommunications (IMT) – see Resolutions 224 (Rev.WRC‑12) and 749 (Rev.WRC‑12), as appropriate. This identification does not preclude the use of these bands by any application of the services to which they are allocated and does not establish priority in the Radio Regulations.     (WRC‑12)

Region 2 (MHz)



1710 2200
1710-2200

R2

1710

1850

1980

2180

1930

2000

2025

2110

2155

US

2180

1710

1755

1850

1915

1930

1995

2000

2025

2110

2155

2200

FIXED/ MOBILE

FIXED/MOBILE

MSS

MSS

MOBILE

MSS

FIXED

MOBILE

AWS -1

PCS

PCS

AWS-4

AWS -1

AWS-3

AWS-4

UPCS

AWS-2

AWS-2

AWS-2

AWS-2

2025 – 2110 MHz EESS/SPACE/FIXED/mobile

1755

1850

2025 – 2110 MHz EESS/SPACE/FIXED/mobile

Canadian

2180

1710

1755

1850

1910

1930

1990

2000

2025

2110

2155

2200

Under review(NTIA/FCC)

for mobile broadband

AWS

PCS

PCS

MSS

AWS

MSS

MOBILE

MSS

LE-PCS

MOBILE

MOBILE

2025 – 2110 MHz EESS/SPACE/FIXED/mobile

C37 (CAN-06) The designation of the bands 1 755-1 780 MHz, 2 020-2 025 MHz and 2 155-2 180 MHz for Advanced Wireless Services may be the subject of a future public consultation.

Notes:

  • The spectrum for further authorization can be assigned as PCS/AWS extension

  • Band plans for these spectrum should maintain the existing technical condition and minimize the implementation complexity of handset

  • Mexico AWS: 1710-1770MHz/2110-2170MHz(60+60 MHz)

  • Peru AWS: 1710-1770MHz/2110-2170MHz(60+60 MHz)

16



2500 2690 mhz2
2500-2690 MHz

US Band plan

Canadian

Band plan

ECC Band plan

18


Where to put the antennas and radios
Where to put the antennas and radios?

e.g. Smart Phone c. 2008

Antenna

connectors

back

Note: individual antennas

may support multiple service bands

Space for battery

SIM connector


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