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    Introduction Introduction Document Transcript

    • Qualcomm Europe Inc. Stureplan 4c th 4 Floor SE11435 Stockholm Sweden www.qualcomm.com Qualcomm response to the PTS consultation on ‘The 800 MHz band, planning and assignment proposals’. Introduction Qualcomm welcomes the opportunity to comment on PTS’s 800 MHz band, planning and assignment proposals. Mobile Broadband has been recognized as a key factor to an economic competitiveness and hence is crucial for a sustainable economic growth. Most importantly, mobile broadband can significantly increase the availability of quality broadband connection, to enable an array of services ranging from e-health, e-inclusion, e-education to e-government. As such, mobile broadband is a key component to reduce the so-called digital divide between population with access to broadband and the rest of the population. The 800MHz band is recognized, in complement to the 900 MHz, as a prime and key band for the extension of mobile broadband network throughout Europe, due to its good propagation characteristics. In this context, Qualcomm applauds PTS, the Riksdag (Swedish Parliament) and the Swedish government for recognizing the importance of the 800MHz band and acting early and decisively to ensure the success of mobile broadband roll-out in Sweden in the 800MHz band. Qualcomm believes that Sweden citizens’ best interest lies in ensuring the availability and evolution of mobile broadband networks and therefore welcomes the premium put on coverage in PTS proposed frequency award rules. Qualcomm also approves the adoption by PTE of the technology neutral harmonized spectrum use technical conditions as defined by CEPT. A technology neutral framework based on harmonised band plan is the key to achieve economies of scale and avoid interference while enabling standards competition, Organisationsnummer: 516405-1970
    • Qualcomm Europe Inc. Mobile Broadband Market The 3G is now the reference technology for the mobile broadband market. The 3G market continues to grow very fast in the world and in Europe. 750 million customers (12% increase compared to July 2008) have adopted the technology worldwide, with 210 millions HSPA or EV-DO customers (+50% increase compared to July 2008). These numbers highlight the adoption of 3G mobile broadband as a mass market technology. 3G will be the key enabling technology for the development of the mobile broadband for the next 10 years. Analysts predict that 3G will represent 80% of the mobile broadband subscriptions by 2013: This evolution is mainly due to the recess of the 2G technology, while LTE will progressively enter the market, with its evolution expected to complement 3G. 2
    • Qualcomm Europe Inc. In 2013, 3G terminals will represent 70% of the shipments. These numbers should be analyzed together with some specificities of this market, in particular, the high demand for smart phones will allow both to improve the performance of these devices (connectivity and processing power) but also to reduce their manufacturing costs. Both effects combine to enable an estimated 40% yearly growth for the smart phone segment. This global growth is expected to vary regionally, with an even stronger growth in Europe and North America. HSPA+ The HSPA+, an evolution of UMTS, has been commercialized in 2009 and offers significantly improved data rates and features together with a significant breakthrough from the 2G background. 3
    • Qualcomm Europe Inc. HSPA+ is already commercially available in its Rel-7 flavor, allowing peak data rates up to 28 Mbps by implementing 64 QAM and MIMO. Such an evolution significantly improves the capacity of mobile networks (doubling the capacity of existing HSPA networks), hence enabling the mass-market offering of data mobile services (mobile Internet, Mobile 2.0, data connectivity through USB keys or built-in modules in PCs. HSPA+ already benefits from a large and proven international ecosystem: 4
    • Qualcomm Europe Inc. Some key HSPA+ Rel-7 features have favored the adoption of the technology by mobile operators: - First and foremost, HSPA+ is readily implemented in existing network equipment and represents a cost efficient functional evolution of existing 3G networks. The handsets benefit from the backward compatibility of HSPA+ with previous HSPA versions. - HSPA+ brings timely significant capacity improvement in a 5 MHz channel, as mobile data usage is exploding and operators now need three HSPA carriers in some dense urban areas. Multi-carrier technology, i.e. the simultaneous multiplexing of data over adjacent 5MHz channels, allows HSPA+ in its Rel-8 to improve and ensure the reliability of the data rates, under real load scenarios, experienced by the mobile user over the entire cell and especially at the cell edge. LTE LTE is an optimized OFDMA solution, on the roadmap of 3G evolutions, improving both the spectrum efficiency and mobility of 3G technology. LTE will enable the increase of data capacity in urban areas, particularly through the roll-out of networks operating in frequency bands which allow bandwidth larger than 10 MHz (e.g. the 2.6 GHz band). The LTE deployment at 2.6 GHz is suitable for areas where capacity requirements exceed the HSPA+ capacity available in the 2 GHz frequency band. This paradigm, combined with the 3GPP-defined inter-technology mobility and handover, requires multi-modes terminals for early roll-out. Qualcomm target is to deliver the market’s first commercially available multimode components (LTE, HSPA+, EV-DO Rev. B) around mid- 2010, in order to ensure the availability of the first USB keys and data cards around mid-2011. In fact, HSPA + and LTE offer parallel evolution paths. While HSPA+ allows optimal usage of 5 MHz and 10 MHz FDD frequency channels, LTE would be optimum for the new FDD frequencies with channel bandwidths ≥ 10 MHz, as well as TDD spectrum bands. 5
    • Qualcomm Europe Inc. Hence, the operators’ interest for the LTE FDD technology is linked to the perspective of the availability of new frequency bands, as 800 MHz, with at least 10 MHz MHz channel bandwidth. Qualcomm chipsets are supporting the evolution of industry requirements Qualcomm chipsets extends the Qualcomm approach, i.e. offering market-first solutions to the mobile communication industry through 3GPP defined technologies, first via PCMCIA cards and USB keys (data terminals), then through extension to mobile handsets (« feature phones, smart phones »). HSPA+ Rel-7 solutions are already commercially available for data terminals, with handsets solutions available beginning of 2010. HSPA+ Rel-8 data terminals solutions will be sampling mid-2009, targeting commercial availability mid-2010. HSPA+ Rel-8/LTE multimode solution will follow a similar roadmap (mid-2010 commercial availability). HSPA+ Rel-8/LTE solutions for handsets should be commercially available in 2011: 6
    • Qualcomm Europe Inc. HSPA+ R7 and R8 terminals solutions Solution for multimode HSPA+/LTE terminals In addition, Qualcomm is developing a processor dedicated to pico/femtocells, in order to cater for the operators’ specific needs in tailored coverage (dedicated indoor coverage, smartbox, capacity in ultra-high density zones). Commercial availability target is mid-2010. Qualcomm detailed responses to the public consultation can be found thereafter. 7
    • Qualcomm Europe Inc. 1. The point in time of the assignment is proposed to be the autumn of 2010. Due to the importance of the 800 MHz band both in terms of economic competitiveness and in terms of digital inclusion, Qualcomm welcomes an early award of this band which would enable to foster product developments supporting this band. Qualcomm notes that PTS proposal is consistent with the timeline set by a number of other European countries e.g. France, Germany and UK. 2. Requirements for coverage and infrastructure roll out (Sub-section 3.3). Qualcomm applauds PTS for acknowledging that increasing broadband coverage should be the prime target of the award procedure. Qualcomm welcomes PTS proposed methodology and considers it as appropriate to ensure an increase of accessibility to broadband, provided the following safeguards are respected: - PTS maintains national licences. Mobility is a prime feature in mobile broadband and several key services require mobility. As such, it is important to ensure that users will have access to national mobile network, not only wireless broadband access to their home. - PTS opens the possibility for award winners to cover some of the SCB grids through infrastructure and/or network sharing. This will prevent valuable capital to be wasted in multiple networks in areas where a shared network is sufficient to support the demand. - PTS applies equivalent requirements to all 800 MHz licence applicants during the award procedure. The whole 800 MHz band ought to be subject to requirements for coverage and roll out to ensure fairness and transparency of the award process, as well as maximum effectiveness in fighting against the digital divide. With regards to requirements to be imposed as regards to the lowest service quality, Qualcomm believes this would require further technical and regulatory considerations. Indeed, Quality of Service will play a key role in the delivery of mobile broadband services while noting the intrinsic characteristics and differences of wireless services compared to wireline services. It is important to ensure full transparency to the users in terms of Quality of Service vs. the price they are paying for the various services. 8
    • Qualcomm Europe Inc. 3. Technology and service-neutral licence conditions (Sub-section 4.1). Qualcomm fully supports PTS as a long-time advocate for technology neutrality, under harmonised band plan and technical condition of access to the band. As such, Qualcomm fully supports the conjunction of the three following decisions: - Technology neutrality, - Adoption of the CEPT Preferred Harmonised Frequency Arrangement (FDD band plan with 2 x 30 MHz and a duplex gap of 11 MHz), - Adoption of the harmonised technical condition of access determined in the upcoming ECC Decision. The need for improving economies of scale, as well as providing greatest possible roaming, require the conjunction of all three aspects in order to achieve technology and applications neutrality without compromising the availability of mass-market products. 4. The 800 MHz band is planned as an FDD, with six paired channels of 2 x 5 MHz each (Sub-section 4.2) The UHF is very valuable spectrum, but this value can only be achieved through Europe wide harmonisation of spectrum. The CEPT Preferred Harmonised Frequency Arrangement for the 800 MHz band ensures timely availability and affordability of products and enables roaming. Any other band plan, e.g. a so-called flexible band plan, would require the development of terminals specific to Sweden. This was recognized by some of Europe larger markets such as France, UK and Germany, which will adopt the CEPT 800 MHz Preferred Harmonised Frequency Arrangement for the mobile broadband networks. Such an approach would be even more critical for medium-sized countries. Therefore, Qualcomm strongly recommends the adoption of the CEPT Preferred Harmonised Frequency Arrangement (FDD band plan) for 800 MHz. 5. National licences (Sub-section 4.3) Qualcomm strongly recommends granting national licences, which provide the following benefits: 9
    • Qualcomm Europe Inc. National operators can leverage high revenue areas in order to improve coverage in sparsely populated areas. National licences allow new operators to enter the market. Customers can access the network nationwide, instead of being restricted to selected areas. This can be the crucial factor for the viability of applications such as e-health. Operators will benefit from economies of scale which are beneficial to consumers. Roaming agreement can be easily reach with neighbourhood countries. 6. The auction object is a frequency blocks in the form of paired channels of 2 x 5 MHz (Sub-section 5.1.2) Qualcomm supports this proposal as it offers the flexibility to develop a variety of business plans. The possibility to aggregate contiguous spectrum should, of course, be kept through careful design of the award rules. However, Qualcomm believes that the best outcome for the award process will be licences based on 2x10MHz frequency blocks. Availability of terminals and supported bandwidth The band plan adopted by CEPT includes a 41MHz duplex distance and an 11MHz duplex gap. In a full duplex FDD system (like LTE and HSPA+), receiver desensitization is the result of out-of-band emissions from an FDD transmitter falling into its own receive channel (called also self-interference). This phenomenon is a significant factor for the 800 MHz band, because of the small separation between transmit and receive channels. Self-interference is inherently linked to band plans with a small duplex distance and is taken into account in 3GPP standards, both for HSPA+ and LTE, with the consequence that the performance of the available duplex filter technology will limit the supported bandwidth by HSPA+ and LTE user equipments (UEs). 3GPP RAN4 is going to specify for LTE UEs in the 800 MHz band operational bandwidths larger than 10 MHz. However given the available RF technology, this can be achieved only at the cost of maximum allowable spectral occupancy by the LTE UE. More precisely, the bigger the LTE UE nominal channel bandwidth, the smaller the maximum number of resource blocks which a UE can transmit while fulfilling the minimum specification for reference sensitivity. To support a bigger spectral occupancy for LTE UEs with a channel bandwidth > 10 MHz, either the reference sensitivity has to be considerably relaxed or significant advances in radio-frequency component technology are required. Such performance improvements in RF technology are unthinkable in the short and medium term, since they would require improvements of several orders of magnitude compared to the performance of current technologies. 10
    • Qualcomm Europe Inc. Optimal bandwidth in the 800MHz band Taking into account the handset design challenges linked to the band plan, Qualcomm recommends to award frequency blocks of 10MHz, in order to guarantee a user experience continuity between areas serviced by high frequency bands (> 1 GHz) and areas serviced by low frequency bands (<1 GHz). Innovative services requiring high data rate would suffer from limited coverage if they are restrained to high frequency bands (e.g. 2.6 GHz). Therefore, it is of utmost importance to enable the availability of 10 MHz bandwidth carriers in frequency bands adapted to national coverage (e.g. 800 MHz) in order not to recreate a digital divide. Furthermore, it is noticeable that channel bandwidths larger than 10MHz offer limited gains in cell edge data rate, i.e. the most critical parameter to guarantee quality of service over large coverage (both rural areas and indoor coverage). 10 MHz channel bandwidth is the optimal channelization for frequencies of the digital dividend. Qualcomm recommends the award of licences based on 2x10MHz frequency blocks, as represented in the Figure below. 791 801 811 821 832 842 852 862 FDD 1 FDD 2 FDD3 Duplex Gap FDD 1 FDD 2 FDD 3 10 MHz 10 MHz 10 MHz 11 MHz 10 MHz 10 MHz 10 MHz 11