[introduction]The UWB new GB with long already raise one’s head and look eventually be born, arrange of this with one action will quicken the prosperity of UWB zoology to develop greatly. relativelyBefore thisBlue tooth, the wireless communication technology such as WiFi, in new GB how-to below, an UWB zoology catenary that breeds by China will expand gradually, lead the whole world industrial development, come true truly“China of base oneself upon, lead the world “target.

The UWB new GB with long already raise one’s head and look eventually be born, arrange of this with one action will quicken the prosperity of UWB zoology to develop greatly. relatively the wireless communication technology such as the blue tooth before this, WiFi, in new GB how-to below, an UWB zoology catenary that breeds by China will expand gradually, lead the whole world industrial development, true implementation ” China of base oneself upon, lead the world ” target.

On April 29, 2024, national industry and informatization ministry were released ” exceed a broadband (UWB) equipment radio administers provisional regulation ” (new edition of the following abbreviation ” regulation ” ) , decided the radio frequency technology that exceeds broadband UWB radio to launch device asks formally. As the issuance of new rule, the Chinese standard that involves UWB new technology and new facility discussed to have definite way eventually! New edition ” set ” the development that opened 7163MHz formally to be used at UWB technology and equipment to the frequency limits of 8812MHz, and signal bandwidth not less than 500MHz, basically apply at stone’s throw high speed the domain such as wireless data communication, fixed position, range finding and perception.

So, relatively before UWB state level, new edition ” regulation ” undertook what is revised and adjust? Form in the standard what exploration to experience in the process? Why to innovate than having again with photograph of foreign UWB standard with before the place of look up? The article will undertake be unscramblinged in detail to this, reveal for you new ” regulation ” in accumulate contained deep information (text makes an appointment with 5 1000 words, read time about 18 minutes) .

Unscramble outline:

This life of what kind of preexistence did OUWB state level experience?

O new edition ” regulation ” what UWB channel to support after all?

O new edition ” set ” be limitation to UWB technology? Still encourage?

O new edition ” set ” why mode of big bandwidth of UWB of banner brightly support?

Why does O say new edition ” regulation ” ” China of base oneself upon, lead the world ” ?

Unscramble one: This life of what kind of preexistence did UWB state level experience?

Well-known, the spectrum resource of wireless communication is one of strategic resource with a country and the mainest area. And level of a state is decided really, want to be based on existing technology circumstance already, also want to consider prospective development; Want to accord with international to understand a regulation already, let product or service facilitate the contend that shares global market, also want to consider special situation of home and demand.

All previous classics develops for years, UWB exceeds technology of broadband communication fixed position already as a child numerous industrial application develops the standardization platform technology that makes the masses consume a domain gradually, cover the field such as net of couplet of mobile phone, car, content. The permission of UWB wireless communication uses frequency paragraph the requirement that must satisfy two respects at the same time, namely the frequency technology of demand of development of UWB technology industry and national government is normative.

International learning committee (for example IEEE 802. 15. 4 standardization working group) and each occupation standard convert guild (for example FiRa is allied, net of CCC car couplet is allied, modes of life and relation to their environment of industry of couplet of ICCE wisdom car is allied, couplet of ICCOA intelligence car opens alliance to wait) to UWB technology, especially physical layer (PHY) in the frequency limits of UWB signal has corresponding technology standard and use standard. But final emissive frequency limits needs to accord with national level to set.

Develop the change of trend and industrial demand to get used to a technology better, UWB state level early or late all previous classics is adjusted several times.

Be in early in December 2008, industry letter ministry was promulgated ” exceed a broadband (UWB) technical frequency uses a provision ” [1] . However, level of industry of main bureau be confined to uses UWB technology at that time, its locate range finding and perceptive function had be notted standardize.

In recent years, wait for the development of the radio engineering as UWB, afore-mentioned regulations cannot have gotten used to the development of technology and industry and administrative demand completely. Accordingly, in January 2023, industry letter ministry was released ” exceed a broadband (UWB) equipment radio administers a regulation (ask for an opinion to stalk of grain) ” [2] , right UWB, emissive power and be restricted the many parameter such as the value undertook adjustment. Among them most marked change is allow UWB working frequency limitation to come in 7235MHz between 8750MHz.

Graph 1 UWB radio launchs course of gradual progress of level of state of technology of equipment radio frequency and parameter contrast

In August 2023, labour believes a ministry to World Trade Organization (WTO) released ” exceed a broadband (UWB) equipment radio administers a regulation ” technical trade barrier is reported [3] , more widely survey and collect the opinion that manages domestic and internationally about UWB technology and feedback. This one version is in in January 2023 on the seeks opinion draft base of edition, relaxed to work to UWB appropriately the limitation of frequency, the permission after revising works frequency comes for 7163MHz between 8812MHz. However, this version introduced a new limitative requirement, namely UWB signal bandwidth (- 10dB bandwidth) should not exceed 650MHz.

One year through be as long as much opinion is collected with consider, in April 2024, be versed in letter ministry released final version ” exceed a broadband (UWB) equipment radio administers provisional regulation ” [4] , deleted clearly early before the about upper limit of signal bandwidth 650MHz description in version. In the meantime, UWB allows to use frequency limits to maintain come in 7163MHz between 8812MHz. New edition ” regulation ” still made clear become effective time limit, rise from August 1, 2025 namely, UWB equipment needs to abide by new edition ” regulation ” . Graph the 1 gradual progress course that revealed UWB radio to project equipment state level, undertook contrast to a few crucial parameter, among them red background data is relatively the content that before one version has modified.

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Unscramble 2: New edition ” regulation ” what UWB channel to support after all?

UWB regards a kind of wireless communication as the technology, its channel definition uses IEEE 802 normally. 15. The 4 agreements definition to layer of UWB technology physics. According to this one definition, UWB channel includes channel normally 1 to channel 15, enclothed central frequency range roughly from about 3. 5GHz arrives about 9. 5GHz. The signal bandwidth of every UWB channel is endless and identical, the signal bandwidth of most channel is 500MHz about, and channel 4, channel 7, channel 11 belong to big bandwidth mode 15 times with channel, support the bandwidth of 1331MHz, 1082MHz, 1331MHz and 1355MHz respectively. New edition ” regulation ” clear support uses channel 8, 9, 10 with 11, among them channel 11 it is the big bandwidth mode that bandwidth is 1331MHz.

Graph 2 revealed UWB state level to be opposite in each phase the supportive circumstance of UWB channel. The formulary in principle of edition can support 2008 from channel 5 to channel 7 channel of 11, but because UWB technology and equipment have not gain ground at that time, use these frequency without too much product actually paragraph. In certain industry application, for example the personnel equipment inside colliery tunnel is monitored etc, communication fixed position often undertakes in the special section that closes relatively, these setting use channel more 2, and emissive power is restricted to be worth and accord with the management at that time not completely to set.

Graph 2 UWB state level supports channel circumstance and gradual progress course

New edition ” regulation ” undertook filtration to the support of UWB channel, below the case that limits in contented emissive power spectral density, support 8, 9, 10 with channel of these 4 11 UWB. Notable is, in new edition ” set ” in establishing a procedure, mode of to whether supporting big bandwidth (channel 11) undertook for many times discussing, also be the crucial central issue in standard iteration process. Can see from inside the watch, WTO sought the UWB bandwidth upper limit that 650MHz raised in opinion draft in August 2023 this one limitation, prohibited channel the 11 use that are in China. However, new 2024 edition ” set ” give the decisive word, support channel clearly finally the big bandwidth mode of 11.

The graph described new edition 3 times ” regulation ” UWB emissive power spectral density is restricted value and IEEE 802. 15. 4 agreements a group of things with common features the contrast of the film of attack by surprise of chart of UWB channel power of the definition. Can see from inside the graph, new edition ” regulation ” supported channel completely 8, 9, 10 and 11 take in UWB inside (- 10dB bandwidth) spectrum is used, but opposite to launching power spectral density to undertake outside emissive belt rigidder limitation. This also raised requirement of taller radio frequency technology, apply to the UWB facility that is about to enter Chinese market.

Graph 3 New edition " regulation " UWB emissive power spectral density is restricted value and IEEE 802. 15. 4 agreements a group of things with common features the film of attack by surprise of chart of UWB channel power of the definition is comparative

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Unscramble 3: New edition ” set ” be limitation to UWB technology? Still encourage?

Current, the new edition that issues to industry letter ministry inside course of study ” set ” the sound that is kept in a few misunderstanding, think new national standard restricted the scope of application of UWB technology, thereby block up its develop. Produce the partial reason of this kind of misunderstanding to depend on, at present equipment of on the market a few UWB or product support channel only 5 (central frequency is made an appointment with 6. 5GHz) , because this is likely after August 2025,compasses sale cannot close on Chinese market, caused pair of new edition thereby ” regulation ” doubt.

In fact, differentiate clearly and efficient use valuable spectrum resource, it is responsible to technology and market act. As the ceaseless development of technology of 5G ／ 6G, intermediate frequency paragraph spectrum resource already made system of 5G ／ 6G in rare be short of ” gold resource ” . Our country is in ” radio frequency of People’s Republic of China differentiates regulation ” (2023 edition) in first frequency of 6425 ～ 7125MHz paragraph differentiate use at system of 5G ／ 6G. As a result of new come true hard between the system of 5G ／ 6G that introduce and existing UWB equipment with frequency compatible, because this needs to undertake be adjustmented accordingly to the use frequency of UWB equipment, so that coordinate the development of the relevant radio application such as 5G ／ 6G and UWB better.

On the other hand, although new edition ” set ” relatively the version 2008, in apparently look be like the support that reduced pair of UWB channel, but at present product of UWB of the great majority on the market and equipment support channel only 5 or channel 9, did not make full use of frequency of other UWB usable channel. To new edition ” set ” the channel that supports clearly 8, 10 with 11, relevant product and application still are lacked to make full use of on the market at present these frequency paragraph. Accordingly, new edition ” set ” the demand that follow-up of with a view to expands, be UWB technology upgrade and applied promotion to provide vast market space, also provided strong basis for relevant policy at the same time. Broad to China application is major interest program trader and chip manufacturer good, mean new opportunity and blue sea market.

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Unscramble 4: New edition ” set ” why mode of big bandwidth of UWB of banner brightly support?

In new edition ” set ” in publishing a process, of UWB frequency scope of application the focal problem that updating is industry attention from beginning to end. Of final edition ” regulation ” stalk of grain than seeking an opinion in January 2023, relaxed appropriately frequency scope of application, and take out WTO sought the to 650MHz bandwidth upper limit restriction in opinion draft in August 2023. In the regulation of new edition government that issues finally, withheld channel option of mode of this 11 big bandwidth, from many respects regard, such choice has active sense.

1. 1. Big bandwidth mode can bring remarkable function promotion

Theory considers to make clear, increase UWB signal bandwidth to be able to raise range finding precision significantly. The range finding principle of UWB technology is based on the flight time that measures pulse signal. Narrower pulse signal is helpful for measuring the time information between signal accurately, and this means bigger signal bandwidth (graph 4) .

Real test shows, use big bandwidth pattern (like channel 11) can fixed position precision from be more than 3 centimeters to promote 1 centimeter of less than. This kind of remarkable promotion accords with national Information Industry completely to expand demand, got client of many famous head approbate, get applied extensively in many new products and new setting. Besides range finding fixed position, another of UWB technology main application is radar perception function. Current, this function has been in the applied field Jing Zhongcheng that is a delegate with car electron erupts now type grows. Increase UWB signal bandwidth to be able to promote its radar perception function significantly. When UWB pulse has bigger bandwidth, its pulse width will be narrower. When radar works, emissive wave leak and the jackknife that the object reflexes echo to go up in time become little, because this can raise the time resolution of pulse, reduced radar blind area thereby. On the other hand, use big bandwidth mode to be able to increase the interference rejection capacity of radar, because UWB radar launchs pulse width decrescent, launch duration to shorten, can reduce the probability of collision effectively. No matter be range finding fixed position or radar function, big bandwidth mode can raise letter a confusion of voices of the system to compare. Basis new edition ” set ” , the equivalent when UWB blasts off is to radiation power spectral density completely – 41dBm ／ MHz. Increase as bandwidth, the transmit total energy that allows inside unit time also rises accordingly. For example, signal of UWB of 1331MHz big bandwidth, 2 its combine compasses emissive power greatly most is signal of 500MHz bandwidth UWB. 6 times (rise 4. 3dB) , this covers what improve communication or radar greatly the distance.

Graph 4 Signal of big bandwidth UWB has narrower pulse to be able to raise range finding precision

Be worth what carry is, big bandwidth channel the central frequency of 11 and channel 9 complete coincide (make an appointment with 8GHz) , modulation and encode means agree completely also. Because this is using end, the UWB equipment of 11 can mix use channel the each other of UWB equipment interconnection of 9 opens use channel each other operation. This special conduce to applied plan upgrading, the user can choose UWB hardware equipment neatly according to product requirement. Although big bandwidth mode brought a challenge to chip design, but the framework that changes through can reframing the design method that with core module answer uses, carry out a proof, supportive channel 11 did not increase chip area and power comsumption apparently, the accrual of the design is more than design cost far. Next graphs were summed up use big bandwidth channel the 11 systematization with use 500MHz bandwidth can be comparative.

Graph 5 Photograph of big bandwidth mode compares the function promotion that 500MHz bandwidth mode brings

1. 2. Big bandwidth mode provided a space to develop dominant position of homebred chip performance

Current, although agreement of international UWB standard reachs the control of main country and area,UWB bandwidth upper limit did not set in the standard, but international contest is tasted in rare product supports big bandwidth pattern. Because support the circumstance of big bandwidth mode to fall,this is, be designed in chip and older technique exists to challenge on plan development. Even if is the UWB chip manufacturer of foreign mainstream, the UWB channel that its product supports 500MHz basically only (be like channel 9) , do not support channel the big bandwidth mode of 11. On the other hand, as UWB technology standard ceaseless and perfect, the acting time difference between technology of domestic and international chip is not apparent, this offerred opportunity in base oneself upon of native land market for homebred chip, organic meeting realizes tortuous path overtake. Of hearten making a person is, the homebred chip group that is a delegate with science and technology of button luck core obtained major breakthrough in this one domain, the chip of communication of UWB fixed position that successful research and development gives pattern of supportive big bandwidth, precision of its range finding and the precision that measure part (AoA) had achieved be less than 1 centimeter to mix far the high accuracy function that is less than 1 degree far. Graph the 6 contrast that showed the UWB chip that has delegate sense domestic and internationally to believe path condition to support, the whole line of UWB series chip that its China produces science and technology of button luck core supports new edition ” regulation ” medium big bandwidth channel 11. This enough explains, base oneself upon at Chinese market, respect Chinese client, take the route of own innovation, the homebred chip group that is a delegate with science and technology of button luck core had the actual strength that competes directly with Euramerican chip, and can be on a few crucial performance data surmount international contest taste, make Chinese distinguishing feature.

Graph 6 Chip of domestic and international representative UWB supports channel parameter contrast

1. 3. Big bandwidth mode provided a space to produce advantage of homebred UWB plan

As our country the high speed of wireless communication career develops, UWB technology is in home market perspective is wide. Trader of program of domestic main head and equipment business, include the many fields such as net of couplet of electron of mobile phone terminal, car, content, begin to make full use of the performance advantage that big bandwidth mode brings and applied latent capacity, enhance the international competition ability of the product ceaselessly. Markets of these China of enterprise base oneself upon, the new setting that uses UWB freeboard precision to locate range finding and radar perception are brought mixes new applying, provide more rich user experience for consumer.

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Unscramble 5: Why to say new edition ” regulation ” ” China of base oneself upon, lead the world ” ? UWB technology gets one of wireless communication technologies that fix eyes upon fully as instantly, each country publishs corresponding emissive control standard in succession. Graph 7 pairs of main countries and the UWB channel that area standard supports undertook contrast, limitation of standard of FCC of indication United States is least, and Europe and Japanese mark criterion use the restriction that has different rate to UWB frequency. Can see, channel 9, 10 with the 11 channel that all support as all standards, the main trend that makes product of the UWB on international.

Graph 7 Main country and area are comparative to the support of UWB channel

In the meantime, review new edition of our country industry and informatization ministry ” regulation ” gradual progress course, the level that can see China is mature the effective demand of Chinese market and user. On one hand, considering the future that corresponds with 5G ／ 6G coexistence develops, new edition ” regulation ” kept away from 7GHz less than relatively congested frequency paragraph. On the other hand, to ensure the sufficient progress of UWB technology, particularly open from 7163 to 8812MHz nearly 1. A paragraph of whole of 6GHz successive frequency paragraph. This kind of reasonable frequency resource configuration can provide enough development space for UWB application. Be opposite especially the support of big bandwidth, dash forward the actual strength that showed trader of Chinese application program and chip supplier to begin to have as direct as foreign advantage plan and chip competition on UWB technology. Nowadays, china has been the mobile market with global the biggest dimensions, domestic demand also is representing global demand greatly. Review before stone’s throw is wireless communication technology, wait like blue tooth, WiFi, the norms that its use equipment and chip often is satisfied first Euramerican the demand that waits for a developed country, global market gains ground again later. And UWB technology hopeful turns round this to develop way, probable meeting is in China ecbolic new zoology chain, lead the whole world the market then. Accordingly, in such development the trend falls, the norms that uses equipment and chip needs the requirement of client of first consideration China. In the meantime, top-ranking enterprise leads a standard, chip company of China and plan company also can be on this burgeoning circuit, change to follow before the situation of foreign company step, bear has the responsibility that leads a technology development. Although be in new edition ” set ” below the requirement, a few existing UWB equipment must undertake the technology upgrades changing mixing, but of sex of the look up before outstanding standard always is had. New edition ” regulation ” publish those who promoted UWB technology industry to upgrade, those who fell into disuse to lag behind, the facility that does not have competition ability, led the new application that has Chinese distinguishing feature and new modes of life and relation to their environment. From long-term in light of, this will be Chinese manufacturing industry upgrade surely the road of classics.

Bibliographical reference:

Http: ／ ／ Www. Srrc. Org. Ministry of letter of industry of Upload ／ of ／ of Cn ／ Srrc is not had [2008] 354 exceed a broadband about releasing (UWB) the announcement ％ that technical frequency uses a provision 20. Pdf [1]

Https: ／ ／ Www. Miit. Gov. 2023 ／ of ／ of Art of ／ of Gggs of ／ of Wgj of ／ of Cn ／ Jgsj Art ＿ Df8ec283689d4facba0b65c41c371bb1. Html [2]

Http: ／ ／ Www. Tbt – Sps. Gov. 1 ／ of ／ of Cn ／ Tbt 3235920BC0EF86C2 [3] Https: ／ ／ Wap. Miit. Gov. 2024 ／ of ／ of Art of ／ of Wjfb of ／ of Wgj of ／ of Cn ／ Jgsj Art ＿ A8a34b2839ab4423972f44d1987bf8b5. Html [4]

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