EP2614607A1

EP2614607A1 - Multi-waveform and wireless very high throughput radio system

Info

Publication number: EP2614607A1
Application number: EP11749459.1A
Authority: EP
Inventors: François Magne
Original assignee: Bluwan SAS
Current assignee: Bluwan SAS
Priority date: 2010-09-09
Filing date: 2011-09-02
Publication date: 2013-07-17
Also published as: FR2964811A1; US9226269B2; US20130279429A1; WO2012031991A1; FR2964811B1

Abstract

The invention relates to a very high throughput radio SHF-EHF system with very large capacity of several gigabits comprising at least one very wide band base (1) and one very wide band and multiuse terminal (9) for very high throughput wireless systems effecting the point-to-multipoint transmission of several simultaneous waveforms so as to service several subscribers or clients of various types with multiservices. The base (1) and the terminal (9) comprise very wide band transmitters, receivers capable of exchanging several waveforms delivered by multiplexes of diverse modems (2, 3, 12). The radio of the base has at least one microwave spectrum generator (4) for the multiplexes optimized for each service and for any type of client. The transmitter-receiver (11) of the radio of the terminal (9) is adapted to operate in the subband of the downlink and in at least one of the bidirectional subbands.

Description

VERY HIGH SPEED RADIO SYSTEM WIRELESS AND MULTI-FORMS

WAVE

The invention particularly relates to a radio system, base and terminal, very high speed wireless in a context point-to-multipoint communication network, for example MWS wireless multimedia networks (English abbreviation of Multimedia Wireless Systems). It concerns millimeter radio systems Ultra Wide Band Multi Function, Multi Wave Forms.

The invention particularly relates to radio systems for constituting access systems and devices for feeding base stations (radiomobile type or WiMAX), better known by the acronym Anglo-Saxon "backhaul" very high capacity Internet and multimedia, or very high speed transmission networks, multi-purpose for both individuals and businesses.

The radio system or radio set according to the invention applies, for example, in systems making it possible to deliver, in a sector of several kilometers, a very high capacity intended for multiple customers and of various types (under the radio coverage). , joint and various services like HDTV, symmetrical and asymmetrical Internet.

Terminology used

In the remainder of the description, reference is made to the following terms: o the MWS (Multimedia Wireless System) system, which is an access network and "backhaul" over a wide area and delivers to various types of customers in quantity several services like multimedia and the Internet,

o Ultra-Wide Band (UWB) refers to very broadband communications radios, typically 500MHz, the "client" which can be: a company, an individual, a group of individuals (ADSL secondary sub-distributor) or even mobile radio base stations or a WiMAX or Wifi (hot spot) base station,

a Waveform: type of modulation and standardized medium access mode (MAC),

the bit rate, which relates to the instant band which the subscriber or the subscriber group needs for example for HDTV (private) or for the virtual office (company),

the capacity, which concerns the allocation of resources or "provisioning" of a number of customers that can be served with an acceptable quality of service (QoS),

the base or head of the network that broadcasts and collects customer information and connects it to the infra structure network from the presence point or PoP generally powered by an optical fiber, the terminal that is located at each customer,

millimeter waves or 'EHF' (Anglo-Saxon acronym for Extremely High Frequency): frequency range where sufficient bandwidth can be available for the application of the invention,

integrated circuits or MMICs: Microwave Monolithic Integrated Circuit, CSM: mounting of surface components,

the word transceiver is used to designate an integrated transmitter / receiver assembly,

the term multimedia includes: voice, sound, image and data, and

the abbreviations SHF, EHF relate to radio systems with frequency ranges [3, 30 GHz] for SHF and [30-300 GHz] for EHF. All NET services and Information and Communication Technologies (ICT) for all have become the major challenge. One of the answers to the needs would probably be optical fiber, but the costs at the line are quickly too high as soon as one moves away from the centers of the metropolises and moreover the capacity is often superfluous.

Moreover, for the performances envisaged in an average dense or dispersed habitat, the communication technique of ADSL (Asymmetric Digital Subscriber Line) can not be suitable in term because of the lengths of the wires which limit the instantaneous flow.

Current solutions known by satellites have the disadvantage of not ensuring at all a sufficient Internet capacity and they are of low flow in return with too much latency for the voice.

Very broadband radio systems, in microwaves in millimeter range, have capabilities similar to those of optical fiber and are more competitive when no fiber layout exists. Microwave solutions are preferable provided that they provide: sufficient data rates to the subscriber (especially for multimedia, voice, picture, sound), as well as the local capacity, ie a bandwidth in the network. Consumption-friendly sector of all customers under the sector's coverage. In a sector and with the desired bit rates, the resulting capabilities are several gigabytes per second (Gbps). Such fluxes can be obtained in radio only at very high frequencies, in extremely wide bands that have very high frequencies, the highest usable range is the EHF range, corresponding to wavelengths of a few millimeters ; today these bands are the only ones to have a spectrum of the GHz class.

In general, the needs encountered by users are of three types: for the private individuals, the diffusion of the multimedia and in particular the HDTV, of the asymmetrical Internet of capacity of class VDSL, it is this what is called 3-play (or even quadruple play now including the mobile radio service); for businesses the need is for the Internet more symmetrical from 20 to 100Mbps and finally for the backhaul of mobile radio base stations or WiMAX stations, the needs are 70Mbps downstream and 30Mbps back.

These services, in terms of signal processing and access to the medium (MAC), can be efficiently obtained by commercial modems chosen for each of the desired services. The radio systems described in the prior art, however, do not allow the simultaneous transmission, simultaneously and on demand, of various waveforms, functions and performances adapted to the dissemination and collection of contents and upstream capacities. and downstream differentiated according to the needs of various customers and their applications.

Patent application WO97 / 48196 discloses a network for communicating a plurality of signals between a central network head control and several subscriber stations. This patent application does not deal with the problems of very broadband and very high symmetrical and asymmetrical speed.

One of the objectives of the invention is in particular the implementation in a point-to-multipoint wireless network, for example of the simultaneous MWS type of very high-speed point-to-multipoint broadband channels, in order to serve jointly, optimally multiple clients (individuals, companies, etc.) that are associated with different multimedia services (broadcast or, video surveillance, access and backhaul, data, symmetrical and asymmetrical ...) in a given sector, for example several kilometers. These "standardized" waveforms are, for example, derived from commercial broadband radio modems in the L, S & C bands, their use allows in particular to take advantage of all technological developments in the field while reducing costs. The subject of the invention relates to a very high speed and very large capacity radio-frequency SHF-EHF system, of the order of several gigabits, comprising at least one very broadband base station and a very broadband terminal and several uses for very high speed wireless systems providing point-to-point transmission for several simultaneous services such as multimedia, very high speed Internet access, backhaul of base stations, video surveillance, to serve multiple subscribers or customers of various types in multiple services, characterized in that:

the base comprises at least one very broadband transmitter associated with an antenna, a very broadband receiver associated with a reception antenna,

the very broadband terminal comprises at least one very broadband transceiver associated with an antenna,

the base and the terminal exchange several waveforms delivered by multiplexes of various modems,

o the base includes a radio having at least one multiplex microwave frequency "generator" optimized for each service and for all types of clients, and consisting of at least one group of channels or downlink sub-band adapted to broadcast at least multimedia and to deliver at least the unbalanced Internet, and at least one group of channels or subband for access communications and / or for symmetric-and-dynamic communications for backhaul and video communications monitoring,

o the transceiver of the terminal radio is adapted to operate in the sub-band of the downstream channel, groups Gi & G ₂ and in at least one of the bidirectional subbands, Groups G ₃ or G ₄ , o said system comprises means adapted to temporally, spectrally and spatially separate several groups of multiplexes of contents Multimedia, Internet, Video Surveillance, of flow rates and symmetrical capacitance, asymmetrical, diversified for a set of diverse customers.

According to an implementation variant, the microwave spectrum generator comprises at least the following elements:

A first-level device for the Gi and G ₂ group single-way links connected in parallel with a second-level device for the two-way links G ₃ and G _{4 groups} ,

the first-level device of the mono-directional links consists of a combiner comprising an output S21 connected to the transmitter of the base, and an input E ₂ i of the combiner is an output of the modems,

the second level device of the bi-directional links is made by a circulator having an output S22 coupled to a combiner having an output S23 which goes to the base transmitter and by devices having a function that is inverse to that of the combiner, or a "splitter", said splitter is connected to the receiver of the base, the signals from the splitter return to the modems through circulators.

The wide radio band of the base and the wide band radio of the terminal are, for example, suitable for processing at least two intermediate frequency ranges for G1 channel groups and G2 directional mono and G3 channel groups and G ₄ bi directional, each group being assigned to a type of service on a waveform optimized for its content and for its function such as performance, symmetry, quality of service or QoS.

According to an alternative embodiment, the radio system is characterized in that:

o the issuer of the database contains at least the following elements:

External connection means for the groups of the first and second level multiplexes (G 1, G 2) and G ₃ , G 4, respectively, At the output, a microwave transition to a sectoral antenna with a high lateral decoupling a desired sector, as well as an output of a local oscillator to the receiver of the base,

between these inputs and outputs the transmitter comprises:

o the oscillator (OL),

a group combiner Gi and an intermediate transposition in order to carry out the final multiplex of groups Gi,

an up converter MMIC comprising: an OL multiplier, an image rejection and OL rejection mixer, an automatic gain control AGC, a preamplifier,

o a MMIC power amplifier,

o the sectoral antenna with strong lateral decoupling adapted to ensure optimum separation of the rising and falling signals,

a combiner adapted to perform the sharing of the local oscillator frequency to the receiver and to the mixer, and:

o said receiver of the base comprises at least the following elements:

o In inputs a power supply, a microwave transition from a sectoral antenna with a strong lateral decoupling covering a fixed sector, and a local oscillator input coming from the base transmitter, or at the output, at least one output jack of the groups Gi bi directional multiplexes,

between these inputs and outputs, the receiver of the base comprises at least:

a down converter MMIC converter comprising a low noise amplifier, an OL multiplier, an image rejection mixer,

o a combiner,

o an automatic receiving AGC gain control which contributes to adjusting the total level of the group (Gi) of the G3 return channels and

G ₄ ,

o the sectoral antenna with strong lateral decoupling. An integrated transmitter / receiver of a customer may include:

o at the input a single directive antenna of variable gain according to the zone of distance plus a transposition,

o I / O Frequency Intermediate: a first tap for one of the groups of bi-directional channels for the return channel and one or two outlets of the outputs of the video or Internet type one-way groups,

a modulation signal of the TDD modem duplex assigned to the client, between these inputs and outputs, the transmitter / receiver comprises at least one common local oscillator, a reception channel and a decoupled transmission channel at the transition of the TDD modem. antenna by a millimeter circulator.

The reception chain includes:

o a MMIC "down-converter" identical to that of the reception chain of the base, a combiner,

o a coupler to direct the Groups to the output of the "down converter" on one side, to the output circulator for the bidirectional connection Groups G ₃ or G ₄ on the other side to a transposition for the output unidirectional links Groups Gi & G ₂ , a combiner adapted to separate the two latter groups G ₁ & G ₂ ,

an image rejection mixer adapted to transpose said mono-directional links, said mixer having an oscillator frequency obtained by dividing by two the common oscillator (OL) of said transceiver. The transmission chain includes:

a control unit for control voltages, an upconverter MMIC identical to that of the base transmitter including the transmission AGC and a preamplifier, o a MMIC power amp,

o the output of the power amp being switched on either the line or on a load.

The system may comprise at least one pair of transceivers operating in the EHF frequency ranges, having a working range or bandwidth of at least 250 MHz and adapted to go to 1 GHz, of adjustable frequency range at beyond GHz and at least over 2GHz.

The system may comprise means adapted to convey a plurality of mono and bi-directional waveforms, symmetrical and asymmetrical, these waveforms each having several channels are organized into homogeneous groups of the same services making it possible to deliver by their adaptive number and their channel width the capacity needed by customers for their varied services in a MWS system.

The system can have a multiplex at least two levels: multiplexing channels of the same waveform at a first level and, at a second level, different waveform groups placed on different intermediate frequencies.

According to an alternative embodiment, on the one hand, the base consists of a synchronized UWB transmitter and receiver whose received (uplink) and transmitted (downstream) spectra are decoupled jointly by their sectoral antennas by the time division of the modems. and by their channeling, on the other hand the client terminal is integrated in transmission-reception, the decoupling between waveforms being provided by circulators and the time division jointly.

The terminal comprises, for example, an antenna selected from the following list: a patch antenna short distance or integrated into a long-distance lens antenna.

The system can be linked to classes of high and ultra high speed commercial mono and bi directional modems for TVD, symmetric dynamic Internet and video surveillance. The system includes, for example, MMICs (AsGa) multifunctional and mounted in CMS.

The modules constituting the base and the terminal are, for example, arranged in relay so as to extend the MWS coverage.

Other characteristics and advantages of the present invention will appear better on reading the description given by way of illustration and in no way limiting attached to the figures which represent:

FIG. 1 presents the general diagram of the multi-function multi-wave radio (heart of the invention) in a point-to-multipoint system MWS,

Figure 2A shows the principle and composition of the dual radio multiplex, its services and the multiplex groups transmitted by the millimeter radio, and Figure 2B shows the radio spectrum generation scheme at the base level. of the MWS system,

FIG. 3 gives an example of a diagram of realization of the issuer of the base according to the description below,

FIG. 4 provides a possible embodiment of the receiver of the base according to the description below,

FIG. 5 provides an exemplary embodiment of the transceiver (English word for "integrated transceiver") of the client according to the description below.

One of the objectives of the very broadband multi-waveband radio according to the invention is notably to optimize the services served to the customers of a very high speed network. This optimization according to the invention has the following object:

· Optimize available, upstream and downstream bandwidth, • give all flexibility and modularity to the services of a very high speed network,

• to optimize transmissions subject to strong variations due to rain, especially in EHF,

· Optimize each service,

• Optimize the distribution of debits and capacities for the benefit of the various customers under the cover.

In summary, the radio set or radio system according to the invention of transmission and reception comprises at least three modules: a transmitter-receiver pair by sector of the point-to-multipoint base station of the system (for example type MWS), a terminal for the customers comprising an integrated receiver-transmitter, a generator or device allowing the development of the spectrum transporting the contents and services from the modems chosen for the services and the capacity of the system (for example of the MWS type); these elements are detailed in Figures 1 to 5.

In order to better understand the principle implemented by the invention, the following description will be made of the radio network for a very high speed network type MWS. According to the CEPT, the MWS is defined as a point-to-point multi-point communication network (voice, data, images) very broadband for any type of application including access, backhaul, broadcasting, symmetrical and dissymmetrical communications. The SHF-EHF system allows point-to-multipoint transmission for several simultaneous services such as multimedia HDTV, 100Mbps high-speed Internet access for example, backhaul base stations or "hot sopts" (100 Mbps dynamic), simultaneous video surveillance to serve multiple subscribers or customers of various types in multiservices.

The system according to the invention described in Figure 1 is a SHF-EHF very high speed radio system, for example 100Mbps per client and very large capacity of the order of several gigabits. The system includes, for for example, a radio of a sector of the base 1 or very broadband sector (or base) which comprises a first set of directional mono modems 2 and a second set of bi-directional modems 3. The sets of modems 2, 3 are connected to a diversified modems multiplex group microwave spectrum generator according to the invention, 4 detailed in FIG. 2B, which is in connection with a very broadband transmitter 5 comprising a sectorial emission antenna 6 and with a very broadband receiver 7 comprising a sectoral antenna 8. The two sectoral branches are strongly decoupled. The base radio has at least one "generator" microwave 4 multiplex spectrum optimized for each service and for all types of customers. The radio consists of at least one group of channels or sub-band: a downlink adapted to broadcast at least multimedia and to deliver at least the asymmetrical Internet, and at least one group of channels or subband for the access communications and / or for symmetric-and dynamic communications of backhaul links.

For this example, reference is made to the very broadband UWB system which is typically 500 MHz, 1 GHz for large sectors and 250 MHz for light systems. The radio system operates in the millimeter bands (such as the Ka, Q, W, E ...) very high frequency bands where only the available spectrum can be found.

Associated with the transmitter, the base radio has, for example, a waveform multiplexer corresponding to the waveforms adapted to the video services to be broadcast, (HDTV VoD, etc.) to the Internet services to be broadcast and collect or even video surveillance to collect.

Associated with the base receiver, a waveform demultiplexer for Internet services (collection of access and backhaul) in return for the client terminals enables the flows of the waveforms assigned to the client to be separated. These flows can be either broadcast downstream flows or bidirectional flows for the return channel or symmetrical flows of backhaul. A terminal, very broad band and multi-purpose, 9 comprising a receiving antenna 10, for example a directional antenna, an integrated transmitter / receiver 1 1 capable of receiving the waveforms transmitted by the radio base that are intended to the customer having the terminal and able to emit the return channel of the waveform assigned to this client.

The integrated transceiver 1 1 is in connection with several modems 12 mono and bidirectional.

These radio equipments provide point-to-multipoint transmission of an arrangement of several waveforms best suited to the customer's functions or services: adapted to downstream video and Internet channels, adapted to symmetrical "backhaul" channels or to the tracks unbalanced back video. These two radio equipment (sector of the base and terminal), have particular characteristics of being very broad band (UWB) and multi waveforms.

The very broadband spectrum (UWB) which conveys the various information between a sector of the base and the client terminals of this sector is of width adapted to the range allocated to the operator, for example, from 250 MHz to 1 GHz and adapted to the necessary capacity in the sector.

Given the propagation constraints and multiple applications, the waveforms for, in particular, the types of service mentioned will be optimized by different choices. For example: for individuals, multimedia broadcasting and the Internet descent channel will be optimized with DVB-S2, the latest standard for transmitting multimedia content via satellite, which has the best broadcast or Broadcast microwave layer as demonstrated by the satellite; for individuals, the return path is of low capacity compared to the downstream path, so it appears that the 802.16d waveform is close to optimal; for companies and groups of companies, the 802.1 1 η waveform currently appears to be the most suitable (high throughput symmetrical), it is also very well adapted for the "backhaul" of node B (base of the mobile radio). Other waveforms appear such as ECMA386 or those of WiGig. The evolution of waveform technologies continues and one of the objectives of the radio system according to the invention is to use the best adapted for each application (Multimedia, Internet ..), for each function (continuous downlink , return channel time slot or "burst") and for each configuration (backhaul radio base station, video surveillance ... or direct access to homes or businesses).

The very broadband spectrum is, for example, organized as shown in Figure 2A (for example for a range of 500MHz). As can be seen in this FIG. 2A, this spectrum is organized by services group Gi, the bandwidth of these groups is adapted to the needs of the customers in a given sector. These service groups consist of channel multiplexes derived, for example, from commercial modems. The services can be rendered by commercial modems which are therefore multiplexed by group of the same type of service.

By way of example, FIG. 2A shows four groups of services: video broadcasting, Internet broadcasting, symmetrical Ethernet (backhaul), asymmetric ethernet (access); this example is not limiting as the set of combinations of mono directional or bi directional, symmetrical and asymmetrical links are numerous in a very broad spectrum.

Indeed, the commercial modems used for each aforementioned service or used by a customer can be programmed with channels of 10, 20, 30, 40 or 50 MHz; the modems can be mono or bi directional, which offers in the 1 GHz band hundreds of possible combinations in all types of situations that can be encountered.

One of the objectives and interest of the invention is precisely to produce a radio system making it possible to implement all these opportunities to optimize services under the sector's coverage. The constitution of the spectrum is configured by the commercial modems that are connected to the radio system. Commercial modems deliver signals over standard frequency ranges, especially in the L, S and C bands; the most common bands are the L, BIS band: the Extended Satellite Intermediate Band (950-2250MHz) as well as the C Band (IMS 4.9 to 5.8GHz). The frequencies of the modems constitute the intermediate frequencies of the transmitters and receivers of the base and the terminals. The spectrum thus consists of several multiplex modems constituting the groups of services delivered to customers on different intermediate frequencies microwave.

At the base of the MWS, the constitution of the spectrum is achieved by the arrangement of groups of modems corresponding to the desired services. The spectrum comprises from two to several groups of modems: Gi to G ₄ (Figure 2A). Each group Gi is a multiplex of modems of identical waveforms and variable bandwidth (for example from 10 to 50 MHz each), in each group are therefore organized a set of channels whose total corresponds to the capacity required for the service in question. These multiplex groups are formed in the base station (by sector) by combining the commercial modems. These groups are then coupled to the base radio which will multiplex and transpose them and ensure the exchange with the terminals according to their requests and their service assignments (SLA: Service Level Agreement).

At the base and by sector the constitution and the exploitation of the spectrum are carried out, for example, in the manner described hereafter:

o At the transmitter of the base, the spectrum emitted on the millimeter range, is realized by the combination of two processes: the combination of the groups of the same range of intermediate frequencies then the transpositions of all the intermediate frequency bands in the band of 'program millimetric (allocated to the operator), the final multiplex on the millimetric band is shown in Figure 2A.

o At the receiver of the base, the spectrum is demultiplexed by the inverse methods of the previous ones: first of all the transpositions of the millimetric band to the intermediate bands of the groups of modems are carried out and then the groups of multiplexes of the same service are separated. .

Spectrum operation is carried out in the following way: o The transmitter / receiver or transceiver on reception performs, in the same way as the receiver of the base, the transposition of the millimetric band towards the frequency bands intermediate modems assigned to the client. It should be noted at this point that the demultiplexing in each intermediate frequency band (or groups) is taken into account by the client's modem whose channel was programmed during network configuration (from the base sector). With the exception of a relay terminal, therefore, the terminal radio does not need its own demultiplexing outside the group separation.

The transmission transceiver transmits only one channel, said channel "return" although bi directional, corresponding to the modem channel that has been assigned by the base. The advantage of a configuration by the base of the broadband multiplex is the universal character that can be given to the transceiver which can thus serve any type of client (according to the choice of the modem in width of channel and access protocol) . Similarly, the base has a universal character at the radio level by the simple addition or activation of modems of various types according to the increasing needs. In this description, the band chosen is one of the sub-bands of the Q band [40.5 - 43.5 GHz] standardized by the CEPT and quite relevant for the MWS, such an embodiment is also possible in other Frequency ranges provided they have sufficient spectral width. In general, the millimeter ranges are well adapted to such an implementation.

FIG. 2B describes an example of a spectrum generator 4 of groups Gi in relation with FIG. 2A.

At the input and at the output of the radio of the base station, the spectrum according to FIG. 2A is organized by configuring this spectrum at intermediate frequencies (FIG. 2B). For this purpose, the first level of multiplexing of contents of the same nature is realized from the commercial modems according to this same FIG. 2B: there are two types of devices or multiplexes connected in parallel depending on whether it is a one-way link (groups G i and G ₂ ) or bidirectional links (groups G3 and G ₄ ).

o A first-level multiplex of the mono-directional links are made by a combiner 21 whose output S21 goes to the transmitter 5 of the base. The input E ₂ i of a combiner is the output of a commercial modem (of the DVB-S type for example),

a second-level multiplex of the bi-directional links are made by a circulator 22 whose output S22 goes to a combiner 23 having an output S23 which goes to the transmitter 5 of the base and by devices having a function inverse to that of the combiner better known by the name "splitters" 25 connected to the receiver 7 of the base, the signal from the "splitter" 25 returns to the modems through the circulators 22 to 26. The inputs out of the commercial modems, by example of Ethernet type _802.1 1 n or 802.16d, are connected to the circulators 22 to 26 which guide therefore the flows down to the combiner 23 and take up the flow coming from the splitters 25.

A common power supply 28 to the different elements constituting the generator of the service groups is provided to power the components and the radios (N or SMA sockets typically).

FIG. 3 represents an example of a very broadband transmitter 5 according to the invention of the base.

The transmitter has the following inputs / outputs: at the input connectors or connectors 300 and 301 for groups respectively (d, G2) and (G ₃ , G 4) above. Output a microwave transition 302 to a sectoral antenna 303 (after passing through a filter 302b) covering the desired sector, and an output 304 of a local oscillator 305 to the receiver.

In input-output control and power supply is available the presence control and power supply 306, automatic gain control command, and the supply voltage (12 -24 or 48V). The transmitter 5 has a power supply unit to distribute all the necessary voltages MMIC supply pads.

Between these inputs and outputs the transmitter comprises:

o the oscillator (OL) 305 band X low phase noise and very stable, these two conditions are necessary for the performance of the radio, o a 307 group combiner Gi and an intermediate transposition (noted CGi) 308 and 309 of way to realize the final multiplex (groups Gi), on the millimetric band (reference in Figure 2A). The intermediate transposition is carried out using the frequency of the local oscillator divided by 2, 309, 310,

a frequency converter called "up converter" MMIC system used for the transmission of uplinks signals (noted MMIC UC) 31 1 comprising: an OL 312 multiplier, a mixer 313 with image rejection and OL rejection, an AGC 314 (automatic gain control), a preamplifier 315,

a power amplifier 316 MMIC (denoted MMIC PA) typically of 25 to 33dbm (these values being indicative for an acceptable balance at a few Kms),

the sectorial antenna 303 with strong lateral decoupling (patch column for example) designed to ensure optimal separation of the rising and falling signals,

a "splitter" 305b allows the sharing of the local oscillator frequency to the receiver 7 (Figure 2B) and to the mixer 309.

FIG. 4 represents an example of receiver of the base according to the invention.

The receiver 7 of the base has the following inputs: in inputs the power supply 306 (identical to that of the transmitter), a microwave transition 401 (K-tap or guide) from a sectoral antenna 402 covering the sector, and an input 403 local oscillator from the transmitter; at the output, the output jacks 404 of the groups Gi of the bi-directional multiplexes.

Between these input-outputs the receiver 7 comprises:

a down converter MMIC 405 (denoted MMIC DC) comprising a low noise amplifier 406, a multiplier 407 of OL, a mixer 408 with image rejection,

a combiner 409.

o A receiving AGC 410 that helps to adjust the total level of the return path group (Gi) (type G3 & G ₄ ).

o The sectoral antenna 402 with strong lateral decoupling identical to that of the transmitter for example patch designed for this purpose.

Figure 5 shows an example of an integrated transmitter / receiver transceiver of a client. The equipment of any customer has microwave input of a single directive antenna 500 variable gain depending on the area of distance (patch, lens or reflect array) plus a transposition 501 after a filter 500b used for its usual features and known to the skilled person.

In IF input / output (intermediate frequency according to the frequencies of the modems): a first plug 503 or connector for one of the groups of bi-directional channels, in particular for the return channel and one or two sockets 502 of the outputs of the one-way groups (type video or Internet),

A connector 504 for supplying and controlling the TDD signal, the power supply unit and the presence of the power supply,

In the control input / output, there is a TDD modem duplex switching signal 505 assigned to the client, the transmit AGC control voltage (integrated in the UC MMIC), the presence control of the power supply and supply voltage (12 -24 or 48V).

Between these inputs, the transceiver has: a power supply unit 506 for all the voltages of the MMICs, a common local oscillator (OL) 507 identical to that of the base, a reception channel and a decoupled transmission chain at the transition antenna by a circulator 508. the millimeter separation emission receiving the bi directional path (G3 or _G4) is provided by a circulator coupled to the input - output modem of this group.

o The reception chain includes (besides the hyper transition and the circulators common to the emission and the reception):

the MMIC "down-converter" (MMIC DC) 510 identical to that of the reception chain of the base, a combiner 51 1, o a coupler 3db to direct the groups to the output of the "down converter" of one side, to the output circulator 509 with respect to the bidirectional link (Groups G3 or

G ₄ ) on the other side to a transposition for output 502 of unidirectional links (Groups Gi & G 2), a splitter

(optional at the transceiver) then allows to separate these last two groups,

o The transposition of the mono-directional links is obtained by an image rejection mixer 513 whose reference

"Oscillator" is obtained by dividing the oscillator by two

507 common (OL) of the transceiver,

The mixed signals are filtered 514.

The transmission chain includes (besides the hyper transition and the circulators common to the emission and the reception):

o the control voltages (presence of power supply, AGC emission, blocking of the transmitter during the reception of the Group

(G 3 or G4),

o the MMIC "up-converter" (MMIC UC) 515 identical to that of the issuer of the base notably comprising the transmission AGC,

o the 516 MMIC power amp from 25 to 30dbm (MMIC PA) depending on the application (access or backhaul). The output of the power amp is switched 517 either on line 518 or on a load 519.

The radio system according to the invention has the following advantages:

o the very broadband capacity of the invention allows to organize on the MWS (Point System Multiservice Multipoint) all services for any type of client depending on the requested capacity;

the services and their capacity can be provided by commercial modems, according to the needs of the customers of the system according to the invention. Thus, by assigning waveforms to groups and content, the best performance for each content and user can be achieved. The advantage of the configuration of the spectrum, according to the invention, from diversified modems is to adapt in a modular way, in capacity per service to the global demand, to the demand by type of service (Group) and the needs of each of the clients. This is done by simply adding (or starting) modems of the desired type of service.

The modularity and the very wide band of the MWS, having a radio system such as that described in the invention, a scalable system, growing on demand, both in capacity, type of service and coverage;

the very broad band allows for multi-gigabit capacity, matching the current and future needs of MWS systems for a large number of deployments: urban, suburban, residential or rural. Rural areas (village groups);

the integration of several services into the same equipment appears to the subscriber and the operator as a single multi-function network;

the compact and modular construction of the radio or radio system according to the invention makes it possible to use it for relays for network extension purposes. The same modules for relays and terminals provide economical relaying;

a simple and compact integration of the subscriber terminal thus allows wide distribution, easy installation and a reduced price;

optimization of the associated radio, according to the invention, to the various modems allows the best spectral efficiency;

the very broadband and EHF bands associated with efficient modems, as well as the qualities of the radio (sensitivity, linearity, low phase noise) allow a lower power of radiation, compared to any other terrestrial radio system , such as terrestrial television, WiFi or mobile radio (GSM), therefore leads to a very ecological system whose safety is guaranteed due to the very weak field near the radio (measurements made by the Bureau Veritas have proven fields <0.1 V / m).

Claims

1 - SHF-EHF radio very high speed and very large multi-gigabit system including at least one very broadband base station (1) and a terminal (9) very broad band and muiti uses for very high speed wireless systems realizing point-to-point transmission for several simultaneous services such as multimedia, very high speed Internet access, backhaul of base stations, video surveillance, to serve multiple subscribers or customers of various types in multiple services characterized in that

the base (1) comprises at least one very broadband transmitter (5) associated with an antenna (6), a very broadband receiver (7) associated with a reception antenna (8),

the very broadband terminal (9) comprises at least one very broadband transmitter / receiver (1 1) associated with an antenna (10), where the base (1) and the terminal (9) exchange several delivered waveforms by multiplexes of various modems (2, 3, 12),

o the base (1) comprises a radio having at least one multiplex microwave "generator" (4) of the multiplex optimized for each service and for all types of customers, and consisting of at least one group of channels or under a descendant band adapted to broadcast at least multimedia and to deliver at least the asymmetrical Internet, and at least one group of channels or subband for access communications and / or for symmetric-and dynamic communications for backhaul communications and video surveillance,

the transceiver (1 1) of the terminal radio (9) is adapted to operate in the downlink subband, Groups Gi & G2 and in at least one of the bidirectional subbands, Groups G ₃ or G ₄ , o said system comprises means adapted to temporally, spectrally and spatially separate several multiplex groups of multimedia content, Internet, video surveillance, flow rates and symmetrical capacitance, asymmetrical, diversified for a set of diverse customers.

2 - radio system according to claim 1 characterized in that the generator (4) of microwave spectrum comprises at least the following elements: a first level device for the unidirectional links groups Gi and G2 in parallel with a second level device for the bidirectional links G ₃ and G _{4 groups} ,

the first-level device of the mono-directional links consists of a combiner (21) comprising an output S21 connected to the transmitter (5) of the base (1), and an input E21 of the combiner (21) is an output of the modems (2, 3),

the second level device of the bi-directional links is made by a circulator (22) having an output S22 coupled to a combiner (23) having an output S23 which goes to the transmitter (5) of the base (1) and by devices having an inverse function to that of the combiner, ie a "splitter" (25), said splitter (25) is connected to the receiver (7) of the base (1), the signals from the splitter return to the modems (12) through circulators (22 to 26).

3 - radio system according to claim 1 characterized in that the wide radio band of the base and the wide band radio of the terminal are adapted to process at least two intermediate frequency ranges for G1 channel groups and G ₂ directional mono and groups of bi-directional channels G ₃ and G ₄ , each group being assigned to a type of service on a waveform optimized for its content and for its function such as performance, symmetry, quality of service or QoS . 4 - radio system according to claim 1 characterized in that

o the transmitter (5) of the base has at least the following elements:

External connection means (300) and (301) for the groups of the first and second level multiplexes (Gi, G 2) and (G ₃ , G ₄ ) respectively,

At the output a microwave transition (302) to a sectoral antenna (303) with a large lateral decoupling a desired sector, and an output (304) of a local oscillator (305) to the receiver (7) of the base ,

between these inputs and outputs the transmitter comprises:

o the oscillator (OL) (305),

a Gi group combiner (307) and an intermediate transposition (308) and (309) for performing the final Gi multiplex,

an upconverting MMIC frequency converter (31 1) comprising: an OL multiplier (312), an image rejection and OL rejection mixer (313), an AGC automatic gain control ( 314), a preamplifier (315)

a power amplifier (316) MMIC,

o the sectorial antenna (303) with strong lateral decoupling adapted to ensure optimum separation of the rising and falling signals,

a combiner (305b) adapted to perform the sharing of the local oscillator frequency to the receiver (7) and to the mixer (309), and: o said receiver (7) of the base comprises at least the following elements: inputs a power supply (308), a microwave transition (401) from a sectoral antenna with high lateral decoupling (402) covering a fixed sector, and a local oscillator input (403) from the transmitter (5) of the base,

at the output, at least one output socket (404) of the groups Gi of the bi-directional multiplexes,

between these input-outputs, the receiver (7) of the base comprises at least: a down converter MMIC (405) comprising a low noise amplifier (406), an OL multiplier (407), an image rejection mixer (408),

a combiner (409),

an automatic reception gain control CAG (410) which contributes to adjusting the total level of the group (Gi) of the return channels (type G ₃ and G ₄ ),

the sectorial antenna (402) with strong lateral decoupling. 5 - Radio system according to claim 1 characterized in that a transmitter / receiver (1 1) integrated with a client comprises:

o at the input a single directive antenna (500) of variable gain according to the zone of distance plus a transposition (501),

o I / O Frequency Intermediate: a first tap (503) for one of the two-way channel groups for the return channel and one or two sockets (502) of the outputs of the video or Internet-type one-way groups;

a signal (505) for switching the duplex of the TDD modem assigned to the client,

between these inputs / outputs, the transmitter / receiver (1 1) comprises at least one common local oscillator (507), a reception channel and a decoupled transmission channel at the antenna transition by a millimeter circulator. (508)

The reception chain includes:

o a MMIC "down-converter" (510) identical to that of the reception chain of the base, a combiner (51 1), o a coupler to direct the Groups to the output of the "down converter" of a side, to the output circulator with regard to the bidirectional link Groups G3 or _G4 on the other side to a transposition to the output connections unidirectional Groups Gi & G2, a combiner adapted to separate these two groups G1 & G ₂ ,

an image-rejection mixer (513) adapted to transpose said mono-directional links, said mixer having a frequency obtained by dividing by two the common oscillator (OL) of said transceiver.

The transmission chain includes:

o control voltages (506),

a MMIC "up-converter" (515) identical to that of the transmitter of the base notably comprising the transmission AGC and a preamplifier,

o a power amp (516) MMIC,

o the output of the power amp (516) being switched (517) either on the line (518) or on a load (519).

6 - radio system according to claim 1 characterized in that it comprises at least a pair of transceivers operating in the EHF frequency ranges, having a working range or bandwidth of at least 250 MHz and can go to 1 GHz, adjustable frequency range beyond GHz and at least over 2GHz.

7 - radio system according to claim 1 characterized in that it comprises means adapted to convey several mono and bi directional waveforms, symmetrical and asymmetrical, these waveforms each having several channels are organized in homogeneous groups of same services to deliver by their adaptive number and channel width the capacity needed by customers for their varied services in a MWS system. 8 - radio system according to claim 1 characterized in that it has a multiplex at least two levels: multiplex channels of the same waveform at a first level and, at a second level, different waveform groups placed on different intermediate frequencies.

9 - radio system according to claim 2 characterized in that: firstly the base consists of a transmitter and a receiver UWB synchronized whose received spectra (amount) and transmitted (down) are decoupled jointly by their antennas In addition, the customer terminal is integrated into transmission-reception, the decoupling between waveforms being ensured by circulators and by the time division in conjunction with the time division of the modems and their channeling.

10 - Radio system according to claim 1 characterized in that the terminal (9) comprises an antenna selected from the following list: a patch antenna short distance or integrated into a long-distance lens antenna.

1 1 - Radio system according to claims 1 and 2 characterized in that it is in connection with the classes of high and very high speed commercial and mono modems for dual directional TVD dynamic symmetric Internet and video surveillance.

12- Radio system according to claim 3 characterized in that it comprises MMIC (AsGa) multifunctional and CMS-mounted.

13 - Radio system according to claim 1 characterized in that said modules constituting the base and the terminal are arranged in relay so as to extend the coverage of the MWS.