Radio communication system

FIELD: communications engineering; mobile communication systems.

SUBSTANCE: proposed mobile communication system has base station system incorporating servicing sectors of base transceiving stations, subscriber terminals, and switching center common for all base station systems that has switch, communication controllers, and central controller; the latter has main processor, means for allocating radio channels in base transceiving stations, means for ordering radio channel access, recording unit for j groups of transceiving devices of base transceiving stations, unit for specifying radio channels from j groups of frequency bands, and unit for assigning priority of subscriber terminal access to radio channels. Subscriber terminal is primarily given priority of access to radio channels of frequency group covering innermost area in cell and only when they are unavailable due to location of subscriber terminal beyond this area or when all radio channels of this group are completely busy is the subscriber terminal given access to radio channel of frequency group bearing numbers j reduced by one sequentially and also with priority.

EFFECT: enhanced capacity, reduced frequency resource requirement and cost of system, reduced inherent noise and provision for electromagnetic compatibility.

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The invention relates to the field of communications, and more particularly to a communication system based on the principle of re-use of frequencies with multiple access.

The increase in the number of operators and cellular subscribers exacerbates the problem of rational use of frequency resources, and this requires the development of new systems, implementing new ways to improve the efficiency of reuse of frequencies.

The invention allows to increase the capacity of any system of communication (CC) for a given amount allocated for the operation of the system frequency bands or to provide the specified capacity smaller number of frequency bands, i.e. to save the frequency resource, improve quality and increase overall technical and economic efficiency of the system with all the components that affect its technical features and the full amount.

The invention relates to the cellular system, built in the form of a set of cells covering the serviced territory. Simplified cell present in the form of a hexagon in the center of which is the system base station (SBS). SBS consists of several base transceiver stations (BPS), which can be in the same place (for example, on a single mast), and serving each azimuthal sector within the cell. BPS can be snapped on the controller or to have their own controllers. Each BPS caters to all user terminals (AT) within their sector. When moving AT from one sector to another is transferred his services from one BPS to another, and when moving AT from one cell to another service is transferred from one SBS to another. All SBS, in turn, closed, at least one switching center (CC), which controls the entire system and provides access to other communication systems. The overall management of the work of the Central Committee and the communications system as a whole is the Central controller that is part of the Central Committee and with powerful software including reprogrammable part.

Real contours (boundaries) of the cells have the shape of irregular curves, depending on the propagation and attenuation of radio waves, and are not clearly defined, the position of the SBS also only approximately coincides with the center of the cell. The principle of re-use of frequencies is the basic principle of cellular communication system, which allows to increase the capacity of the system consists in using a close friend from other sectors of different frequency bands and in their repetition in sectors other cells under the scheme, providing socialnew electromagnetic compatibility (EMC). This also applies to the cells.

In practice, cellular use three main methods set the nogo access sharing a limited part of the spectrum of frequencies by many users: frequency, time and code division communication channels (for example, patent of Russian Federation CL H 04 b 7/26 No. 2104615). Also use abrupt rearrangement frequencies (U.S. Pat. RF, CL is the same, no 2119255).

For any multiple access system capacity with repeated use of the bands increase a few basic methods implemented by the corresponding communication systems:

1) Go to the digital information processing and more perfect method of access from the frequency to the time and code.

2) Increase the repetition frequency, reducing the service area of the individual BS (crushing cells) and increasing the density of their placement in areas with intensive schedule. This is achieved by reducing the radiation power as BS, and AT decreasing the height of the suspension antennas and increase the angle of their pattern (Mavritansky. Basics of cellular communication. M.: Radio and communication, 2000, p.81; Technology and communication, 2002, No. 2, p.40).

3) To reduce the flow of handovers caused by crushing, assume the use of multilevel systems network building with service microsotf quickly moving AT, and microsotf - sedentary AT. With a small graph of the cell is not crushed, and enlarges (Mavritansky. CIT., p.81.

4) Apply a multi-sectoral SBS (3, 6, 9, 12, 16 sectors) using sectors directional antennas (U.S. Pat. RF, H 04 b 7/26, No. 2172072; Wagamama. Standards and mobile radio systems. 1996, p.59-61, RIS, 3.6).

5) Occasionally use adaptive channel allocation in frequency and time division multiplexing. In this case, the frequency resource is not given in advance in a certain way between the cells of the cluster, and the whole or part is in operational order of the Central Committee, which allocates them to use the base station upon receipt of the call, i.e. in accordance with the actual schedule, but subject to the necessary territorial-frequency separation (for example, Mavritansky, CIT., 83; U.S. Pat. RF, CL H 04 b 7/26, No. 2154901).

6) Extend the allotted bandwidth, but it is of limited use path.

To improve noise immunity of the system base stations with the same frequency bands are removed from each other by a distance providing a given level socialnih, intersystem interference (Mavritansky. Basics of cellular communication. M, Radio and communications, 2000, section 2.4.2). Known to increase noise immunity in the communication system, in which SBS, creating mutual interference and in relation to each other which is the interfering set of active relays and AT with automatic power control signaling, the location is routed near stranger interfering SBS, receive and transmit signals pereizlucheniya relays, frequency range which coincides with an operating range of frequencies AT, respectively, of their and their SBS (U.S. Pat. RF, CL is the same, no 2161866).

These methods and uses their radio system to increase capacity and reduce intersystem interference with communication systems. However, the fast development of mobile communication and investment in its creation and operation so large that you need a continuous further development, improvement, identify additional opportunities to improve technical and economic efficiency of communication systems.

Way radio simultaneously filed application authors gives great additional opportunities to improve technical and economic efficiency, essentially any known communication systems (SS). This is achieved by the fact that allocated for each sector SBS frequency is deliberately divided into several groups that do not contain the same frequency transmitting unit (PPU) for each j-th group radioactivit nested one inside the other areas with casiotone disjoint paths, and the j-th group of frequencies covers only the j-th zone. However, access AT the radio (RK) is implemented with a priority to the RK group frequencies, radioactively the interior in the Gaza area, and only the ri their inaccessibility in case of finding out AT this zone or, but when fully engaged RK this group of frequencies AT successively with priority allowed to RK groups of frequencies umenjshenie unit numbers j. The frequency of j-th group re-used in other sectors of the cell circuits, providing the desired socialnew EMC, carrying through the allocation of radio access terminals to the radio in specified order.

Known communication system (SS), containing the Central Committee of the interface connecting to the TOP (common area phones), SBS, connected to the Central Committee, and AT having access to the SS through the SBS, controllers, communication is enabled between the Central Committee and SBS with interface connection to the TOP (U.S. Pat. RF, CL H 04 b 7/26, No. 2126591). Known SS containing the CC interface connection to other SS and means of decision-making and management solutions, SBS, connected to the Central Committee, and AT having access to the SS through the SBS (U.S. Pat. RF, CL H 04 b 7/26, No. 2143177).

These SS are not intended and cannot implement the above-described method according to the request of the authors.

As a prototype of the selected known radio system (Mavritansky. Basics of cellular communication. M.: Radio and communication, 2000, p.20-31, 48-54, 65), based on the principle of re-use of frequencies, built in the form of a covering in the aggregate the entire service territory of cells with SBS in each and having a sector structure with the space sector Sk and service every what about the sector, its bpps with the provision of radio communication AT within BPS containing a switching center that is common to all SBS service area, including functionally connected to the Central controller, a switch for switching the flow of information between the respective lines and controllers to transfer the service from one BPS to another when moving AT from one sector to another and the transfer of service from one SBS to another when moving AT from one cell to another and the connection with other communication systems, and the Central controller is functionally connected to each other and with the switch main processor for controlling operation of the switching center and the means to establish a specified procedure for access to radio channels and allocator radio subscriber terminals through BPS, the system base station contains functionally connected to at least one controller to manage and control bpps and block its pairing with the communication line connected to the controllers communication switching center, each BPS connected to the controller SBS and contains a transceiver device which, in the aggregate, the radio coverage of the entire area Sk of the k-sector, and each contains AT functionally connected to the control unit, transceiver unit and the antenna unit is made with the possibility of a functional is a real connection with transceiver devices BPS.

The disadvantage of the prototype compared with the stated communication system is that it is not intended and may not be way radio at the request of the authors, the essence of which is set out above, and therefore does not provide additional opportunities to increase capacity and reduce system noise communication systems, saving frequency resource, and thus does not allow to increase technical and economic efficiency of the cellular communication system.

The proposed radio system based on the principle of re-use of frequencies, built in the form of a covering in the aggregate the entire service territory of cells with SBS in each and having a sector structure with the space sector Sk and maintenance of each sector of your BPS with the provision of radio communication AT within BPS containing a switching center that is common to all SBS service area, including functionally connected to the Central controller, a switch for switching the flow of information between the respective lines and controllers to transfer the service from one BPS to another when moving AT from one sector to another and the transfer of service from one SBS to another when moving AT from one cell to another and the connection with other communication systems, and the Central controller contains a functional the material United with each other and with the switch main processor for controlling operation of the switching center and the means to establish a specified procedure for access to the radio channels, as well as a means of allocating radio subscriber terminals through BPS, the system base station contains functionally connected to at least one controller to manage and control bpps and block its pairing with the communication line connected to the controllers communication switching center, each BPS connected to the controller SBS and contains a transceiver device which, in the aggregate, the radio coverage of the entire area Sk of the k-sector, and each subscriber terminal contains functionally connected to the control unit, transceiver unit and antenna unit is made with the possibility of functional communication with transceiver devices BPS.

A significant, distinctive features of the prototype features are the following:

each k-vol sector transceivers BPS subdivided into j-tide group, where j varies from 0 to Lk a Lk can be different for different sectors with the possibility of providing transmission and reception of signals by radio from j-mentioned groups of frequency bands that do not contain the same frequency bands allocated from the reserved sector for communications Mk frequency bands, and transmitting-receiving device bpps made with the possibility of providing in the aggregate coverage area k of sector j's zones, nested one inside the other with the contours, quasiparallel the circuit the coverage of the k-sector, without crossing with each other and with the contours of the coverage of other sectors and cells adjacent to the k-sector, and j-Tye band transceiver devices bpps made with the possibility of providing in the aggregate coverage only j-mentioned zones k-sector areas of Sj,k that satisfy the condition SLk,k<...<Sj,k<...<S2,k<S1,k<Sk, the Central controller switching center entered functionally connected in series recording unit j-mentioned groups of transceivers each BPS, block set radio from j-mentioned groups of frequency bands of the k-th sector and the unit ensure priority access AT first to radio j-th group of transceivers k-th sector with the highest number j, is equal to Lk, and their inaccessibility in case of being at the k-th sector outside the radio coverage with the highest number or in the case of a finding in this area, but when fully occupied radio channels group vies with the highest number j, in series, providing priority access to the radio channels groups PUF with umenjshenie unit numbers j until the radio group PUF that is dedicated to providing overall coverage of the entire area Sk of the k-sector, with the unit providing priority access AT the k-th sector included between the means of establishing the specified procedure access the and radio channels and means of allocating radio channels AT the k-th sector, functionally connected to the recording unit j-mentioned groups PUF each BPS.

The number allocated to the j-th group of frequency bands of communication Mj,k is chosen to be close to the integer part of the ratio Mk·(Sj,k Sj+1,k)/Sk with j from 0 to Lk-1 and Mk·Sj,k/Sk if j=Lk, provided that M0,k+M1,k+...Mj,k+...+MLk,k=Mk.

In addition, each k-th sector j-Tye group PUF his bpps configured to provide transmission and reception of radio signals by the radio channels of the j-th group of frequency bands corresponding to the j-th zone coverage with an area of Sj,k, is equal to (Sj-1,k-Sk·Mj-1,k/Mk), where j is from 1 to Lk, a, Mj,k is set for j from 0 to Lk, provided that M0,k+M1,k+...Mj,k+...+MLk,k=Mk.

Finally, in each k-th sector j-Tye group PUF his bpps with possibly large rooms j is arranged to provide transmission and reception of radio signals by the radio channels of the j-th group of frequency bands corresponding to the j-th zone coverage, most adjacent to the frequency bands involved are in the vicinity of the k-sector electronic facilities of other communications systems.

The proposed radio system increases technical and economic efficiency of the communication system due to the introduction of it to the new elements and their relations, allowing the reception and transmission of radio signals PUF his BPS on a new algorithm and implementation of the access AT the radio sudannatcom, but with the new build priority access according to the above method. This allows you to increase capacity, reduce intra-system interference, to ensure the electromagnetic compatibility of radio-electronic means of other communication systems, save frequency resource and consequently to reduce the cost of cellular systems.

Below the invention is described in more detail with reference to the drawings, schematically illustrating the SS and its work.

1 shows a communication system according to the prototype, figure 2 - declare the communication system, figure 3 serves to explain the operation of the proposed radio system.

Communication system prototype (figure 1) in each cell contains functionally related system base station 1, maintained AT 2 and common to all SBS switching center 3, which is the brain and the control point of the entire cellular communication system, which isolates the flow of information from all SBS and through which the other communication network. The switching center (CC) contains functionally connected to the Central controller 4 which carries out the overall management of the work of the Central Committee and of the overall system and has a powerful mathematical software, including reprogrammable part, the switch 5, switch the flow of information between the respective communication lines, for example the direction is t the flow of information from one SBS or BPS to another or from SBS (BPS) to a fixed communication network (otherwise, to TOP common area phones) or Vice versa - from the latest to the SBS(BPS), the communication controllers 6 for the implementation of the interim flow processing, transfer of service from one SBS to another when moving AT from one cell to another or transfer of service from one BPS to another when moving AT from one sector to another, as well as connections with other communication systems. The Central controller contains, including the main processor 7 that performs these basic functions of the Central controller, a means of allocating radio channels (RK) 8 for k-th BPS subscriber terminals 2 through SBS 1 of their location - in the zone-specific PPPs (in other words, issuing a command of the Central Committee for the purpose of channel traffic) and the means to establish a specified procedure for access to RK 9, the procedure of which is shown, for example, in the CIT. the book Mavratsas, RZD “Initialization and communication”, functionally connected with each other and with the switch 5. The Committee members are also terminal operators 10, because the work of the Central Committee involves active participation of operators, display and registration information 11 and database 12. Each SBS 1 contains transceivers BPS 13, composed, as usual, a transmitter 14, a receiver 15, a power adder 16, the power divider 17, the reception antennas is with receive diversity 18 and the transmitting antenna 19, which may be separate from the receiving antenna. Also SBS contains at least one controller SBS 20, which represents a perfect computer and ensure the management of SBS, as well as monitoring the performance of all sub-units and units, and a connection unit with a communication line 21, carrying a package of information transmitted through the communication line to the Central Committee, and unpacking the received information. GSM BPS closed on common controller SBS, as shown in figure 1 In the standard D-AMPS in a similar case can be used independent BPS, each with its own controller, located in the same place and working each on their sector antenna. If SBS and the CC are not in the same place as their lines of communication are commonly used microwave or fiber-optic lines. PPU 13 through the controller SBS 20 and the connection unit 21 is functionally connected to the controller connection 6 of the switching center 3. AT 2 contains functionally connected to the control unit 22, the transmitting unit 23 and the antenna unit 24, functionally associated with the PPU BPS 13. Functional connections in figure 1 and 2 is shown by arrows.

The requested telecommunication system (figure 2) contains all of the elements of the prototype 1...24 and their functional connections, and advanced Central controller 4 CC 3 between cf is a rotary selection RK for k-th BPS 8 and a means to establish a specified procedure for access to RK 9 entered functionally connected in series recording unit 25 j-mentioned groups PUF each BPS, where j varies from 0 to Lk a Lk can be different for different sectors, unit assignments of radio channels 26 of the j-mentioned groups of frequency bands bpps not contain the same frequency bands and allocated from the reserved sector for communications Mk frequency bands, and the unit ensure priority access 27 user terminals 2 in the first instance to the radio channels of the selected group of frequency bands with the highest number j, is equal to Lk, and only when their inaccessibility in case of presence of a subscriber terminal in the k-th sector outside the radio coverage with the highest number or in case of finding in this zone, but when fully occupied radio channels group vies with the highest number, sequentially, providing priority accesses the radio groups PUF with umenjshenie unit numbers j until the radio group PUF that is dedicated to providing overall coverage of the entire area of the k-sector Sk.

PPU 13 each BPS configured to provide transmission and reception of radio signals by the radio channels of the j-mentioned groups of frequency bands that do not contain the same frequency bands allocated from the reserved sector for communications Mk frequency bands, and foam 13 is arranged to provide, in the aggregate coverage of their k-sector and j-mentioned areas, nested one inside the other with the contours, Quas is similar to the contour of the coverage of the k-sector, without crossing with each other and with the contours of the coverage of other sectors and cells adjacent to the k-sector, and j-Tye band transceiver devices bpps made with the possibility of providing in the aggregate coverage only j-mentioned zones k-sector areas of Sj,k that satisfy the condition SLk,k<...<Sj,k<...<S2,k<S1,k<Sk.

The amount allocated to the j-th group of frequency bands of communication Mj,k is chosen to be close to the integer part of the ratio Mk·(Sj,k Sj+1,k)/Sk with j from 0 to Lk-1 and Mk·Sj,k/Sk if j=Lk, provided that M0,k+M1,k+...Mj,k+...+MLk,k=Mk.

In addition, in each sector j-Tye group PPU 13 his bpps configured to provide transmission and reception of radio signals by the radio channels of the j-th group of frequency bands corresponding to the j-th zone coverage with an area of Sj,k, is equal to (Sj-1,k-Sk·Mj-1,k/Mk), where j is from 1 to Lk, a, Mj,k is set for j from 0 to Lk, provided that M0,k+M1,k+Mj...k+...+MLk,k=Mk.

Finally, in each sector j-Tye group PPU 13 his bpps with possibly large rooms j is arranged to provide transmission and reception of radio signals by the radio channels of the j-th group of frequency bands corresponding to the j-th zone coverage, most adjacent to the frequency bands involved are in the vicinity of the k-sector electronic facilities of other communications systems.

The inventive radio system is in the distinctions of the different standards, the operating system due simply upgraded and implemented in the system described above may be used in conjunction with almost any known means of increasing the efficiency of use of frequency resource, complementing and developing them and giving substantial economic effect.

The proposed radio system operates as follows.

The radio system is built in the form of cells with SBS 1, conventionally located in the center of each of them (figure 3). BPS provides radio communication AT all within the sector. All bpps functionally connected with the General of the Central Committee of 3 (see figure 2), which transmits service from one BPS to another when moving AT from one sector to another and connects with other communication systems.

The CPU 13 k-BPS and respectively AT 2, within the k-sector, transmit and receive radio signals on Mk radio channels allocated in the sector for communications frequency bands, in the aggregate of radioactiva the entire area of the sector. The required number of frequency bands used in the k th sector, I repeat in sectors other cells under the scheme, providing the desired socialnew electromagnetic compatibility, as is common in communication systems based on the principle of re-use of frequencies. Access AT 2 to the radio for the implementation of the proven means of allocating radio channels 8 for the k-th BPS specified in a particular communication system procedure carried out by means of establishing a given order of access 9.

To achieve a technical result of the invention shall take the following actions.

In each sector the foam 13 is divided into j-tide group, where j varies from 0 to Lk a Lk can be different for different sectors. These units are registered in the registration unit j-mentioned groups PUF BPS. In each sector PUF transmit and receive radio signals by radio from j-mentioned groups of frequency bands that do not contain the same frequency bands allocated from the reserved sector for communications frequency bands, in the aggregate of radiopacity their sector and j-tide zone, and nested one within the other with the contours, quasimodogeniti the contour of the coverage of the sector, without crossing with each other and with the contours of the coverage of other sectors and cells adjacent to the k-sector, and radio signals by radio from j-mentioned groups of frequency bands collectively cover only j-those areas k-sector areas of Sj,k that satisfy the condition SLk,k<...<Sj,k<...<S2,k<S1,k<Sk. While j-Tye group of frequency bands allocated from the reserved sector for communications frequency bands, block set radio channels 26 are allocated to the j-th groups PUF BPS and together cover the sector. Internal j-th zone has the largest number. When this definition is shining, that radio signals by the radio channels of the j-th group bands together cover only the j-th zone k-sector. The latter is carried out by various means, for example, power control, radiation as BPS and AT or change the height of the suspension of the antennas, or by setting the desired angle of their pattern (Mavritansky. Basics of cellular communication. M.: Radio and communication, 2000, p.81; Technology and communication, 2002, No. 2, p.40).

The required number of frequency bands used in the k th sector, I repeat in sectors other cells under the scheme, providing the desired socialnew electromagnetic compatibility, as is common in communication systems based on the principle of re-use of frequencies.

The following actions, providing in conjunction with the above achievement of the technical result is the access AT 2 to the radio. Namely access AT the radio channels is carried out in a specific communication system known means of allocating radio channels 8 and the tool 9 establish a specified procedure for access, but with the following priority, implemented using the introduced tools 27 software (ordering) priority access to RK. Access AT a primary role in the radio channels of the selected group of frequency bands with the highest number j (it is equal to k). The radio group of frequency bands with j=Lk can be available in two cases: 1) AT is outside the radio coverage of this group of frequency bands, and (2) AT is in the zone of coverage of this selected group of frequency bands, but the radio channels of the selected group of frequency bands with the highest number of fully occupied. In this situation, access the radio channels of the selected group of frequencies with reduced per unit group number, i.e., for j=Lk-1. If for this group of radio channels is not available, then access the radio the next group with j=Lk-2. This process is sequentially repeated until the access to the radio channels from the group of frequency bands allocated to ensure overall coverage of the entire area of the sector.

The control signals operate on the entire sector dedicated channels.

Note that the reuse of the required number of frequency bands of the j-th group, used in the sector, again in sectors other cells under the scheme, providing the desired socialnew electromagnetic compatibility, as is common in communication systems based on the principle of re-use of frequencies, as shown in figure 3, where the communication system is presented in the form of a fragment of the totality of cells covering the serviced territory.

The radio system on monsterverse a simple example of the 3-cell cluster with 6 sectors per cell (figure 3), to which are allocated to 6 groups of frequency bands M1...M6 to ensure overall coverage of the entire area of the cell. Within each sector conditionally shows the contours of the radio coverage of each of the j-th groups PUF his BPS, conditionally placed in the center of the cell. Each group vies transmits and receives radio signals only from its j-th group of the allocated frequency bands. In each sector are for example two areas marked in Arabic numerals: for M1-1,2, M2-3,4 etc.

In each sector in General, the amount of foam and groups of frequency bands may be different and the radio coverage can have various sizes. Radio coverage j-tym groups selected frequency bands must not overlap with the coverage areas of adjacent (neighboring) sectors and cells, as shown in figure 3.

Reuse of the required number of frequency bands from the same internal groups used in the cell can also be made in each cell, as shown in figure 3.

Implementation of access AT the radio show on the example of a sector with zones 1 and 2. Let AT is in the inner zone coverage 2. Then it provides access primarily to the radio channels of the selected group of frequency bands with the highest number, i.e. in this example 2. If the channels of this group will be engaged, AT predostavlyaut access the second queue the radio channels of the selected group of frequency bands 1, zone coverage which extends over the entire cell and is limited in this example, the contour of the cell.

Now suppose that AT is 1 area. Then it is not available radio channels of the group of bands 2 and provides access to a group of frequency bands 1. The density AT (number AT per unit area) can be considered with sufficient accuracy the same on all accepted his bpps territory. Then the number of radio channels Mj,k of the j-th group of frequency bands corresponding to the j-th zone coverage, which transmit and receive radio signals j-Tye group PUF his BPS, is determined from the condition of constancy of the number of ATS per channel. Given squares Sj,k j's radio coverage Mj,k is close to the integer part of the ratio Mk·(Sj,k Sj+1,k)/Sk with j from 0 to Lk-1 and Mk·Sj,k/Sk if j=Lk, provided that M0,k+M1,k+...Mj,k+...+MLk,k=Mk. Has practical value option, which specifies the number of radio channels Mj,k for each j-th group of frequency bands corresponding to the j-th zone coverage, which transmit and receive radio signals of the j-th group PUF his BPS. Square Sj,k j is the radio coverage in this embodiment, under the same assumption and the condition is (Sj-1,k-Sk·Mj-1,k/Mk), where j is from 1 to Lk, a, Mj,k is set for j from 0 to Lk, provided that M0,k+M1,k+...Mj,k+...+MLk,k=Mk.

In around the spine of the sector can be radio-electronic means of other communication systems, operating in a certain frequency band. In this case, the same frequency bands can send and receive radio signals j-Tye group PUF his bpps by radio from the j-th group of frequency bands with possibly large numbers j, i.e. corresponding j-th zone coverage in the cell.

Using the stated communication systems allows to increase the capacity of the communication system or the number of radio channels per frequency band.

Released when using the claimed system group frequencies allocated in the sector for communication systems can be added in the most tense areas with intensive schedule. Accordingly, reduction of costs and costs of operation of the communication system. The claimed system radio universal and can be used in combination with systems using other means of communication.

We also note the following important circumstance. When creating a cellular network due to the high investment, the operators at the initial stages of construction of their systems aim to provide maximum area coverage with even a small amount AT. Further increase subscriber capacity by increasing the number of base stations, their sectorization and multiplying the number of channels occurs after entering the system, e is sploitation. This approach requires simply increasing the amount of foam, but it may entail a complete change in the structure of their antenna-feeder equipment (AFO). In order to minimize the costs of modernizing the AFO that includes not only the actual cost of the equipment, but also quite time-consuming installation work, it is necessary at the initial stage of network design to provide for the further development of the overall system and possible changes in the structure of individual base stations. The application stated communication systems greatly reduce these difficulties, and in some cases eliminate them.

Thus, the distinctive features of the proposed radio system provide the appearance of new properties that are not achievable in the prototype and the like. The analysis has allowed to establish: analogues with a set of characteristics is identical for all features of the claimed technical solution is available, which indicates the compliance of the cellular communication system the condition of “novelty”.

The results of the search of the known solutions in the field of communication in order to identify characteristics that match the distinctive features of the prototype of the features of the declared communication systems has shown that they do not follow explicitly from the prior art. Also revealed no known effect provided significant PR the signs of the claimed invention of actions to achieve a specific result. Therefore, the claimed invention meets the condition of patentability “inventive step”.

1. Radio system based on the principle of re-use of frequencies, built in the form of a covering in the aggregate the entire service area of the cell system of the base station in each and having a sector structure with the space sector Sk and service to every sector of its base transceiver station with the provision of radio communication terminals located within the base transceiver station containing a switching center that is common to all systems of the base station service area and includes functionally connected to the Central controller, a switch for switching the flow of information between the respective lines and controllers to transfer the service from one base transceiver station to another when moving user terminal from one sector to another and the transfer of service from one base station to another when moving user terminal from one cell to another and to connect with other communication systems, and the Central controller is functionally connected to each other and with the switch main processor for controlling operation of the switching center and the facility at which Stanovlenie given access to radio channels as well as a means of allocating radio channels of the subscriber terminals via the base transceiver station system base station contains functionally connected to at least one controller for managing and controlling the base transceiver stations and block its pairing with the communication line connected to the controllers communication switching center, each base transceiver station is connected to the controller system base station and contains a transceiver device which, in the aggregate, the radio coverage of the entire area Sk of the k-th sector, and each subscriber terminal contains functionally connected to the control unit, transceiver unit and antenna unit is made with the possibility of functional communication with transceiver devices base transceiver station, characterized in that in each k-th sector transceivers base transceiver station is divided into j-th group, where j varies from 0 to Lk a Lk can be different for different sectors, with the possibility of providing transmission and reception of signals by radio from the j-th groups of frequency bands that do not contain the same frequency bands allocated from the reserved sector for communications Mk frequency bands, and transmitting-receiving device base transceiver station is made possible with the TEW ensure overall coverage area of the k-th sector and the j-th zone, nested one within the other with the contours, quasimodogeniti the contour of the coverage of the k-th sector, without crossing with each other and with the contours of the coverage of other sectors and cells adjacent to the k-th sector, and the j-th group of transceivers base transceiver station is arranged to provide, in the aggregate coverage only j-x zones k-th sector with areas of Sj,k that satisfy the condition SLk,k<...<Sj,k<...<S2,k<S1,k<Sk, the Central controller switching center entered functionally connected in series recording unit j-x groups of transceivers each base transceiver station, unit assignments of radio channels of the j-th groups of frequency bands of the k-th sector and the unit ensure priority access terminals in the first instance to the radio j-th group of transceivers k-th sector with the highest number j, is equal to Lk, and their inaccessibility in case of presence of a subscriber terminal in the k-th sector outside the radio coverage with the highest number or in case of being in the zone, but when fully occupied radio band transceiver devices with the highest number j, in series, providing priority access to the radio channel groups of transceivers with umenjshenie unit numbers j until radika the Alov group of transceivers, dedicated to providing overall coverage of the entire area Sk of the k-th sector, and the unit ensure priority access terminals k-th sector included between the means of establishing a given order of access to the radio channels and means of allocating radio subscriber terminals k-th sector, functionally connected to the recording unit j-x groups of transceivers each base transceiver station.

2. The system according to claim 1, characterized in that the amount allocated to the j-th group of frequency bands of communication Mj,k is chosen to be close to the integer part of the ratio Mk·(Sj,k Sj+1,k)/Sk with j from 0 to Lk-1 and Mk·Sj,k/Sk if j=Lk, provided that M0,k+M1,k+...Mj,k+...+MLk,k=Mk.

3. The system according to claim 1, characterized in that in each k-th sector of the j-th group of transceivers its base transceiver station is arranged to provide transmission and reception of radio signals by the radio channels of the j-th group of frequency bands corresponding to the j-th zone coverage with an area of Sj,k, is equal to (Sj-1,k-Sk·Mj-1,k/Mk), where j is from 1 to Lk, a, Mj,k is set for j from 0 to Lk, provided that M0,k+M1,k+...Mj,k+...+MLk,k=Mk.

4. The system according to claim 1 or 2, or 3, characterized in that in each k-th sector of the j-th group of transceivers its base transceiver station with possibly large numbers j are designed to ensure peredachi reception of radio signals by the radio channels of the j-th group of frequency bands, the corresponding j-th zone coverage, most adjacent to the frequency bands involved are in the vicinity of the k-th sector of electronic means of other communication systems.



 

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2 cl, 7 dwg, 1 tbl

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2 cl, 7 dwg, 1 tbl

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EFFECT: enhanced quality of voice information.

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