System with moving base station for radio communication with mobile objects

 

(57) Abstract:

In the communication system with mobile phones mobile objects used mobile base station, moving in the direction of the traffic flow moving along the roadway. Moving the base station has a connection with a fixed radio ports connected with stations firewall pair. Lots of moving stations are separated from each other on a closed path and move with the traffic flow along one road in one branch circuit and with heavy traffic flow along another road in another branch circuit. The moving base stations have connections with many fixed radio ports connected by a transmission line signals with the station firewall mates, which, in turn, connected in a wired line telephone network. Each moving base station is provided with two directional antennas, one antenna is aimed at the transport stream, and the other antenna on the fixed radio ports. The technical result - the creation of an infrastructure that allows you to use the target device for all applications in your home or office as radisich speeds. 2 C. and 39 C.p. f-crystals, 9 Il.

The present invention relates to cellular telephony system in which a mobile phone mobile object is communicated by radio with the base station connected to a wired telephone network, and more specifically to a cellular telephony system, adapted for use with mobile phones moving objects.

Description of the prior art

In a typical cellular telephone communication systems, the region is divided into multiple zones (m), and each zone has a contact point located in the center of the zone. Mobile phone a mobile object moving in such a network connection with the zone (cell) structure, reported by radio to the nearest point of contact zones. Each point of contact areas is connected by a cable or by direct microwave (microwave) communication interface with the telephone network. Features of the model interface of the communication network described in the technical journal " The Bell System Technical Journal, January 1979, Volume 58, No. 1. One of the functions performed by the interface to the telephone network, is the so-called "transfer". When a mobile phone moves through the network connection with the zone (cell) structure, it will move posi quality control signal, taken from a mobile phone, transmits the information to the interface telephone network and determines when it should be transferred to the continuing relationship of subscribers from one zone to another point of contact. This procedure is known as "transfer". The process of communication subscribers includes several operations, providing the choice of connecting the telephone line point of contact zone between the mobile switching station and the point of contact of the other areas, send message to the transmitter/receiver of a mobile phone for the settings from the currently used channel voice frequency channel tone frequency at the point of contact of the new zone corresponding to the newly selected connection of the telephone line, setting up a speech channel in a mobile telephone switching station from the connection of the telephone line point of contact zones to the connecting line, currently used for communication subscribers, and waiting for the speech channel switching with the switching circuit mobile switching station between the connecting telephone line old zone and connecting the telephone line to the telephone network the new zone.

The problem is rocedure of communication subscribers requires a lot of time. It turns into a big problem in urban areas that are heavily overloaded. The basic principle of cellular telephony system is the concept of reuse frequency. It can be argued that the throughput of cellular systems is increasing in N2times, if the size of the zone, i.e. its diameter is reduced N times. This is due to the fact that to use in each independent zone, at least in principle, available to all frequencies in the spectrum of the mobile phone. Thus, when increasing the number of zones increases the total number of simultaneous connections of subscribers. However, the drawback of reducing the size of zones is that the mobile phone of a moving object tends to cross the boundaries of the zone more often, requiring more transmission links, which will lead to an overload of the mobile telephone switching station to such an extent that the existing communication subscribers can be interrupted or terminated.

Personal communication services (PCS) works essentially as well as mobile cellular system. In PCS, the subscriber may be in the building, walk down the street or riding in a vehicle, using the handset, which communicates with BA the tee connection. Obviously, PCS, due to breakdown on a very small area can provide telephone service for a very large number of subscribers, for example, in a densely populated urban area. The difficulty with using PCS is the same as when using a cellular system in which transmission links of the subscribers have become a bottleneck.

In modern cellular systems use what is known as a multistation access in systems with code division multiplexing (CDMA) communications extended range. When direct sequencing of the coding CDMA (DS-CDMA) energy of the subscriber signal is uniformly distributed in the range of operating frequencies, providing separation between users of the same frequency in adjacent areas. The requirement of DS-CDMA is to accept interference could not be much stronger than the desired signal, because otherwise they would have crushed a weaker signal. This type of encoding used in the systems, which are sometimes called hierarchical cellular systems. The most famous of the hierarchical system is a system in which macrozone covers a number of micro-watersheds. For example, mobile phone mastrodicasa object can be ologen through macroelectrodes subscribers are micro. When using the concept of DS-CDMA in micro and macrosonic use the same frequency. To prevent strong interference in the microzone mobile phone having a communication with the base station of macrosomy, the output power of a mobile phone increases to suppress the signal, with harmful effects. Obviously, to meet the requirements of future mobile communications, using a hierarchical cellular system to provide high quality speech signal, data transmission speeds up to 2 Mbit/s and video to mobile phones of mobile objects moving at speeds over 100 mph (160 km/h) and with PCS.

In a hierarchical cellular system a small area, for example, a diameter of the order of 100 feet (30 m) serve low speed. Low velocities have mainly pedestrians and traffic, moving at speeds less than 30 mph (48 km/h). The advantage of small areas is low power, simplicity, low cost and low weight of the terminal device. Requires the creation of an infrastructure that would allow the use of such terminal devices for all applications at home or in the office as radiotele is the Raleigh with interchanges at different levels, moving at high speeds. In addition, to provide affordable, high-quality service, which requires a wide range of operating frequencies for each subscriber, need a wide range of multiple use.

To provide wire line long distance telephone services and high-quality speech signal requires coders ADPCM (adaptive differential pulse code modulation). When using the data radio will need even more wide range of operating frequencies. In the future it may be possible to use spectrum in the 60 GHz band, providing a very large range of operating frequencies. However, radio wave characteristics at the frequency dictated by the need for very short range and line of the local transmission signal, requiring very small areas. However, as indicated, for small areas, and mobile phone mastrodicasa object is incompatible due to the time required for the procedure of transfer of communication.

A summary of the present invention

These and other problems in the prior art, are overcome in accordance with inim phone of a moving object and a stationary base station. In accordance with the present invention, the mobile base station moves with the transport stream when the speed level which is compatible with the speed of traffic flow, and has a connection with a mobile phone, a mobile object through the standard mobile radio. Mobile base station additionally reported via radio signals with multiple fixed antennas, spaced along the path of the mobile base station. Multiple fixed antennas in the usual way connected with the wire line telephone network through the station firewall pair. In accordance with the present invention the fixed radio ports are synchronized, and the interface between the moving base station and the fixed radio ports is an interface with a temporary seal (TDM), DS-CDMA extended range.

In one specific embodiment of the present invention in addition to the moving base stations provided by the fixed base station that allows you to have a relationship with slower movement, for example, the movement of pedestrians or vehicles during peak hours.

In a typical embodiment of the present izopet the mouths radio. Link fixed ports of mobile radio base stations is carried out at a relatively low power level, and mobile base stations with mobile phones - with a relatively high power level. Due to the characteristics of the DS-CDMA extended spectrum signal of a higher power level will overpower the signal at a lower power level so that the mobile phone will not accept data from the fixed radio ports, but only from the mobile base station. In the reverse direction, from mobile phone to mobile base stations transmit a signal of a low level of power, and from the mobile base station to a fixed port radio signal of a high level of power, except in accordance with this any direct connection from the mobile phone with a fixed port of the radio.

In one embodiment of the present invention the mobile base station is maintained at the closed loops and the ends of adjacent paths overlap to facilitate the transfer of subscriber's communication between adjacent contours.

A brief description of the drawings.

Fig. 1 is a block diagram of the structure of the roadway with a fixed base stations, the movement is the radio it is shown in Fig. 1.

Fig. 3 is a block diagram of a fixed base station shown in Fig. 1.

Fig. 4 is a block diagram of a moving base station shown in Fig. 1.

Fig. 5 is a block diagram of the station interconnection of the coupling shown in Fig. 1.

Fig. 6 is a schematic diagram of distribution channels.

Fig. 7 is a schematic diagram of the selected channels.

Fig. 8 is an illustration of the transmission of signals among elements of the system.

Fig. 9 is a block diagram of a moving base stations operating in separate paths.

Detailed description of the present invention

In Fig. 1 is a diagram of a communication system with mobile phones mobile objects, containing the principles of the present invention. For example, in Fig. 1 shows a divided highway with mobile phones 20 moving objects, moving first to the roadway 10 in one direction, and many mobile phones 25 moving objects moving on the second to the roadway 15 in the opposite direction. Lots of moving base stations 30 located along one edge of the roadway 10. The base station spaced from each other by a selected distance, equivale using the vehicle along the guide 35, or other suitable vehicle, which can be a mechanical vehicle, moving on to the roadway 10 in the direction of traffic flow, as shown by the arrow 12. Similarly many of the moving base station 40, located adjacent to the roadway 15 moves in the direction of traffic flow, as shown by the arrow 17. Moving the base station 40 is moved along the guide 45. Moving the base station 30, 40 may be supported on any suitable vehicle, for example, on the guides 35, 45. This vehicle depending on the terrain and available space can move at ground level or above. Moving the base station is preferably located so as to provide optimum radio communication with mobile phones mobile objects moving on to the roadway.

Many fixed radio ports 50, which are connected via a fibre-optic ring 55 (or similar device for transmitting signals to the telephone station connected to a wired line telephone network, and the called station firewall mates, is located between the driving interface between the communication system with mobile phones and wired line telephone network. Station firewall pairing is a well-known equipment. It is part of the telephone network and is responsible for handling communication subscribers together with the base stations. As will be described in more detail below, the station firewall mates will contain a processor and software to detect a symbol of the best quality signal and to selectively transfer the data symbol of the best quality signal to the telephone network. Many fixed base station 70 is located in the vicinity of the roadway 10 and connected with the station 60 firewall mates through fiber-optic ring 75 or similar device for transmitting signals.

In the process of moving the base station 30 can move in the direction of traffic flow with a speed of, for example, 60 mph (96 km/h), which can be more than some vehicles, and less than others. Moving the base station preferably manages communication with mobile phones mobile objects that move at speeds of no more than 30 mph (48 km/h) faster or slower moving base station. For example, moving the base camp of the speeds in the range of 30-90 mph (48-144 km/h). In the apparatus shown in Fig. 1, the fixed base station 70 will provide connectivity with mobile phones mobile objects moving at speeds less than 30 mph (48 km/h), including pedestrians and stationary objects. It is obvious that instead of fixed and mobile base stations shown in Fig. 1, can be also used slow-moving and fast-moving base station. Specific moving base station effective if the moving objects move in the same direction with the base station. In Fig. 1 shows two of the road to ensure traffic flow in opposite directions, and the moving base station is located between the road canvases and moved in the direction of traffic flow. These base stations can be located on opposite edges of one of the road, has a two-way traffic flow, and moving the base station are moved in opposite directions on opposite sides of the roadway.

In a typical cellular telephony base station, also called the point of contact zone forms interfacename a number of functions, for example, the location of the mobile phone, as well as processing of speech signals, and function installation connection of subscribers, control, communications subscribers and end users. In addition, the base station performs the function of transmitting and receiving an existing link (subscribers) mobile phone mobile object that moves in or outside normal service base station. They are all well-known functions of the base station. In some proposed systems, telephone communication with mobile phones mobile objects base station are only interfaces radio and the base station controller connected to multiple base stations, the function of the communication control subscribers to multiple base stations. System corresponding to the present invention differs from the systems of the prior art mainly because the base station 30, 40 stations are moving with traffic flow and having a connection with the station 60 firewall mates through fixed ports 50 radio. In addition, moving the base station performs various control functions communication subscribers, including the procedure paynim telephone number of the transmission connection is significantly reduced.

Each of the moving base stations 30, 40 are provided with antennas 100, 101. Antennas 100, 101, which is preferably directional antennas with high gain, applied to mobile phones mobile objects, are well known and are produced on an industrial basis. Fixed base station 70 is provided with four separate antennas 110, facing different directions. The antenna 100 at the base stations 30, 40 used for communications with the mobile telephones 20, 25 at the time, as the antenna 101 on the moving base stations used for communication with the stationary ports 50 radio. Preferably, each of the fixed base stations 70 provided with four antennas 102-105. Can also be used less than four antennas. In this case, use at least one Omni-directional antenna. In the system shown in Fig. 1, the antenna 102 are positioned to provide communication with the mobile phone 20 and the antenna 103-105 - for communication with other mobile phones moving objects slow moving traffic flow or fixed subscribers. Each fixed port 50 of the radio communication system shown in Fig. 1, is provided with two n the 40 move relative to the fixed ports 50 radio data representing speech signals, and information related to the communications subscribers, is transmitted between the antennas 101 on the moving base stations 30, 40 and antennas 110, 111 on the fixed ports 50 of the radio.

In Fig. 2 shows the schematic diagram of the fixed ports 50 radio. The device includes a standard microprocessor 150, an interface circuit 154 radio that provides an interface between the radio signals received by antennas 110, 111, and a microprocessor 150. These schemes are, as a rule, the schemas used in the fixed base stations, and well known in the art. In addition, each port 50 radio contains a processor 150 coupled to the multiplexer for transmission/reception of communication (ADM) 152. ADM 152 is mated with the fiber optic cable 55 and the ability to summarize data from processor 150 in the data stream on the fiber-optic cable 55. In addition, ADM 152 detects the data stream, followed by the address that identifies the processor 150, and transmits the data from the data stream of fiber-optic cable to the processor 155. As will be described below, the processor 150 computes the symbol-quality signal information transmitted from the interface circuit 154 p is special. The processor 150 controls the transfer of information between the fiber optic cable 55 and the various moving base stations through the antenna 110, 111.

In Fig. 3 shows a block diagram of one of the fixed base stations 70. Fixed base station 70 perform the functions of a standard fixed base station of the prior art. The base station 70 is connected with fiber-optic ring 75 and include a multiplexer receiving/transmitting communication (ADM) 162, which provides interfacing processor 160 with fiber-optic ring 75.

As indicated above, the fiber-optic ring 55 and fiber-optic ring 75 is connected with the station 60 firewall pair. The main function of the station firewall pairing is the software interface with a wired telephone network. It distributes the load of a communication channel between the network and the moving base stations through a fixed radio ports. Fiber-optic ring 55, 75 preferably are continuous rings with multiplexer receiving/transmitting connection for each ring station firewall pair. Data transmission over fiber-optic rings 55, 75, preferably ASU is ke, or Protocol synchronous digital hierarchy SDH) data.

Directional antennas 100-105, 110, 111 can be partitioned antennas or phased array antennas arrays. Such antennas are preferably used to reduce the mutual influence between mobile base stations and the fixed radio ports, allowing greater reuse of the spectrum. Antenna diversity can be achieved through two spatially dispersed radiology separated in time by a specified offset time delay for easy separation at the reception. In the technique of well-known various technologies for a large diversity antenna and antenna, which explode used such technology, are produced on an industrial basis.

In Fig. 4 shows a block diagram of a moving base station 30. Station 30 includes a processor 130, which is connected via the interface circuit 132, 134 radio antennas 100, 101, respectively. The processor 130 may be a standard microprocessor and interface circuit 132, 134 - standard interface circuits. The microprocessor is preferably programmed to control functio together with the controller of the base station. In this case, the moving base station has a higher autonomy and requires less communication with the base station controller or similar device. Circuit 132 as well as the interface circuit 154 radio in a fixed port 50 radio and interface circuit 164 radio in the fixed base station 70 are well known and are manufactured on an industrial basis schemes.

The radio interface between mobile phones 20, 25, and the moving base stations 30, 40 and the fixed base station 70 is a standard interface radio, well known in the art. The radio interface between the moving base stations 30, 40 and stationary ports 50 radio are preferably TDM/DS-CDMA interface. Many of the channels between the base station and the fixed radio ports are temporarily sealed as time intervals in the data stream. The data stream is spread by a pseudo-random code in the corresponding spectrum. For simplicity, the synchronization signal is a well-known method of inserting pilot sequence. The interface between the mobile base station and a fixed port Radiocommunication preferably the two is the amount of separation (channels) can be used for duplex communication. In the FDD mode (frequency division duplex communication) data is transferred simultaneously in both directions, each in a specific frequency band of the spectrum. In a typical system, which is in the FDD mode, the duration of transmission of the TDM cycle will be approximately 500 microseconds, making the interface essentially transparent for the entire system.

The interface between the mobile phone and the mobile base station may be a standard interface IS-95, is selected on the basis of the standard for PCS. Bandwidth for the so-called "advanced mode" (2.5 MHz) was determined for seven channels when the signal transfer speed 32 kbps. Licensed spectrum allocated by the Federal communications Commission, personal communication services (PCS) contains licenses for 10 MHz and 30 MHz. Each license 10 MHz provides two separate 5 MHz bandwidth, and each license 30 MHz provides two separate 15 MHz bandwidth for two-way communication. Two 5 MHz bands can support 14 duplex communication channels at 32 kbit/s, and two 15 MHz bandwidth can support 42 channel duplex communication at 32 kbit/s.

Speech signals between the mobile phone and the station firewall mates encode in the standard way, and the Noah rate 32 kbit/s in each channel. The interface between the moving base station and a fixed port the radio is adapted to carry up to 19 channels 32 kbit/s at 16 bits per time interval. The cycle speed of the temporary seal between the mobile base station and a fixed port radio is 608 kbps. To achieve the win in 9 dB in the signal-to-noise ratio in the signal processing speed of the cycle is increased 8 times, getting 4864 kbps, which corresponds to 5 MHz range. In Fig. 6 shows the principal distribution channels, which shows 16 wideband plus 3 channel for signaling, control, and error code. In Fig. 7 shows a view of the channels 18 and 19, shown in Fig. 6.

Moving the base station address, using predefined code sequence executed in a known manner by applying the functions of the Welsh. In U.S. patent N 5103349, entitled "System and method of formation of forms of signal waves in a cellular telephone system with CDMA", describes the use of the functions of the Welsh for code generation. U.S. patent N 5103349 included in this application by reference. As described in this patent, the choice of the eighth order functions Welch provides 8 orthogonal codes in a real Welsh as the pilot signal at the carrier frequency with the other seven sequences, available to the moving base station. The code sequence may be repeated as ABCDEFG; ABCDEFG; . .. Although it may be used less code, preferably using at least three. Due to differences in propagation time of signals between the moving base station and two or more different fixed radio ports, it is not possible to satisfy the condition of adjustment of the time required to ensure the orthogonality of the functions of the Welsh simultaneously for two or more fixed radio ports. For this purpose we use two external pseudo-random code to ensure distinguish between signals reaching the moving base station different from the fixed radio ports. Speed pseudo-random code is preferably 4864 kbps. The length of the sequence to the transmitted carrier signal is approximately 32768 elements of the signal, as described in U.S. patent N 5103459. External pseudo-random codes modulate the signal in quadrature phase manipulation.

The pilot signal is transmitted in both directions from the moving base station to the fixed radio ports and Vice versa. This is made possible by the th, to the number of different sequences could be formed by shifting in the main sequence. The separation is large enough to ensure that between the pilot signals no mutual influence. To ensure separation of the signal of each of the moving base stations will have a different offset from adjacent the moving base station. Similarly, each fixed port radio will have a different offset relative to the adjacent fixed port of the radio.

The Federal communications Commission has allocated 20 MHz of unlicensed spectrum containing 10 MHz bandwidth for transmission of speech signals and 10 MHz bandwidth for transmission of data signals. Thus, available in one contiguous 10 MHz channel and preferably is used to transfer data with a temporary seal. The data transfer speed in both directions of transmission will be twice the speed for duplex communication mode frequency separation in obtaining the total delay 500us and win 9 dB in the signal-to-noise in signal processing. Mode time division duplex communication between the mobile phone and the moving base station and between guigui reverse directions. During one half of the time-division signals cycle duplex communication transmitted from the mobile phone to the moving base station and thence to a fixed port on the radio. For another politicla signals are transmitted from the fixed port of the radio to the moving base station and then to a mobile phone.

Two 15 MHz licensed band (30 MHz) spectrum is preferably divided into three 5 MHz channel in each direction, using the same technique that was described in this application previously in relation to 5 MHz of licensed spectrum. 15 MHz of licensed spectrum of each of the 5 MHz channels will support 14 channels of a transport stream, 42 channels of a transport stream in each of 15 MHz bandwidth. The air interface between the moving base station and the fixed port of the radio, as well as the structure of the signal can be modified and adapted to the set of distributions of the spectrum and standards air interface.

In the present embodiment, as previously described, to provide communication between the fixed ports 50 radio and the moving base stations 30, 40 available 7 orthogonal codes. As described in this application previously and shown HB. As shown in Fig. 7, the channel 19 can contain 7 control bits and 9 identification bits. Nine identification bits provide the 512 unique identification numbers, so that each of the 3854 moving base stations may have a unique identification number. When the distance between the moving base stations equal to 200 feet (60 m), the total distance covered 3854 moving base stations, approximately 135 miles (216 km). In Fig. 1 shows part of a system with mobile base stations, moving in opposite directions along the road of paintings, aimed in opposite directions, and the fixed radio ports with antennas with dual pattern. Traffic moving in opposite directions one to the roadway, serve, preferably with a moving base stations on opposite sides of the roadway. When each of the roadway has only one-way traffic, the system preferably have between road canvases. In one embodiment of the present invention illustrated in Fig. 9, two separate circuit 200, 205 are located between the arrows on 207, 209. Circuits 200 and 205 moving base station 210 and 250, respectively. In this embodiment of the present invention, these base stations are moving in the direction shown by arrows 201 and 202. Because the circuits 200, 205 have almost indefinite length, to cover the required area may take many paths. To avoid disconnection, the ends of the paths preferably are close enough to each other or overlap each other to provide overlapping coverage for mobile phones mobile objects moving in the area of the ends of the paths. This will allow one of the moving stations, moving near the end of the path, part of which it is to transmit the communication subscribers moving base station adjacent the path.

Each loop preferably has one station firewall mates to connect to a wired telephone network. One advantage of this device is that it eliminates the necessity of registration of the moving base stations, which is required when moving the base station moves between stations firewall pair. In Fig. 9 shows two stations 215 firewall mates, wired is about pair all the time connected to the fixed radio ports of the circuit in case of failure in one of the stations firewall pairing can work in load sharing mode with another station for communication with the transport stream loop.

To prevent interruption of communication with mobile phones mobile objects moving along the roadway in the area of the two ends of adjacent contours, existing communication subscribers are transmitted from the moving base station near the end of her path to the moving base station of the next circuit. The process of communication is essentially the same as the transmission of a communication between the moving base stations of the same circuit except that the transferred communication subscribers will be directed to a wired network connection to another station firewall pair. This procedure is equivalent to the transmission of a communication between the contact points of the various zones in an existing cellular network in a way that is well known in the art. To ensure appropriate overlap of communication between the moving base stations of the two circuits and to prevent loss of communication with mobile phones, transmitted from one circuit to another, circuits 200 and 205 can physically overlap.

Clocking and synchronization between the moving base station and the fixed port of the radio, which is connected to the moving base station, automatically adjusted in phase with the pilot signal, prinimaya moving base station will once per second dot clock universal coordinated time (UCT) global satellite positioning system (GPS).

It is well known that CDMA technology is sensitive to power regulation. In particular, more powerful signals were inclined to consume less powerful signals in the receiver. As a rule, to ensure that all signals received in the receiver at the same level, has developed a complex scheme to regulate power. However, in the system corresponding to the present invention, provides sensitivity to the power level CDMA. In Fig. 8 illustrates the principles of signal transmission used in the system corresponding to the present invention. Determine two level power radio, high (H) and low (L). As follows from Fig.1, signals a high level of power transfer from the moving base station 30 to the mobile phone 20 and from the moving base station 30 to the stationary port 50 radio. Signals of low power transfer from fixed port 50 radio to the moving base station. Similarly, signals of low power transmit from the mobile phone 20 to the moving base station 30. Since moving base station receives the signal of a low level of power from a fixed port radio communication and transmits the signal to the high power level to a target of strdest, transmitted from the fixed port of the radio to the moving base station. Any weak signal transmitted from the mobile phone 20, reaching a fixed port 50 Radiocommunication similarly be littered with high signal power transmitted from the moving base station to a fixed port on the radio. As mentioned above, the antenna 100-105, 110, 111 are preferably directional antennas with high gain, with very little feedback of the transmitted signal with the received. Feedback due to reflections and other foreign sources can be easily excluded from the moving base station, using a well-known technique suppression.

When the mobile phone is first switched on or first appears in the area of telephone service, your mobile phone must register with the previously described method by transmitting its unique address in the new service area. This address will be passed nearest the moving station 30 and passed through a fixed port radio station and 60 firewall interfacing to the telephone network. This registration procedure is required for an incoming request, the mobile body is moving ports 50 of the radio (Fig. 1), and the level of the signal transmitted between the moving base stations and the fixed radio ports determines the number of fixed radio ports with which the moving base station may have a relationship at any point at any time. Distance and signal strength should preferably be such that each fixed port radio received signals from three moving base stations. When the stationary port radio receives the data, followed by the identification number of the moving base station, the processor 150 (Fig.2) calculates the symbol signal quality for the received signal. Symbol signal quality is a quality indicator, calculated as a function of signal level and signal-to-noise. It is added to the accepted data and injected into the fiber optic ring 55 through ADM 152. Station 60 firewall coupling preferably takes the same data from several different fixed ports 50 radio and stores these data in the internal storage device in the firewall mates in connection with identification number and code of the dispersion functions of the Welsh. Address fixed port radio, from which were taken the data, is also stored in remember odvisnih ports radio compared with the preset threshold value of the symbol-quality signal and rejected data corresponding to the symbol signal quality is below the threshold value. Otherwise, the data is saved. Code cyclical redundancy of transmitted data, is used to detect any errors cycle D. The best data, i.e. data associated with the symbol of best quality signal is transmitted from station 60 firewall interfacing to the telephone network. Data received by the station 60 firewall pair from the telephone network and destined for a registered mobile phone, stored in the storage device processor 150 in the register, particularly related to the moving base station serving at the present time this mobile phone. These data will be sent through fiber-optic ring 55 to all fixed radio ports that are identified in the storage device processor 65 as the fixed radio ports with an acceptable symbol signal quality. The received data will be transferred from each of the fixed port of the radio, which has taken these data together with the ID code and the function code of the Welsh moving the base station to which the data is output bands of channels, with different delays, so that they could be taken and divided in the moving base stations. Delays can be accurately adjusted by means of the synchronous distribution fiber optic ring 55 in the format of a SONET or SDH. Receiving a moving station through its processor 130 compares multiple copies of the received data signals, combines and combines them for the best reception.

Each of the moving base stations will have one of the N codes assigned, where N can be any number, but preferably a number of at least not less than 3. Preferably use seven different function codes Welsh. Codes may be repeated in sequence, for example, ABCDEFGABCDEFG. Codes assign different moving base stations in such sequence that the two moving base station with the same code that was to be apart from each other at a sufficient distance so as not to exert mutual influence on the relationship between the fixed radio ports and the moving base stations having the same identification code. Work fixed base stations 70 is essentially the same as the standard base station. In congested areas tra the example, with a speed less than 30 mph, preferably will be served by one of the fixed base stations 70. When the moving velocity of the mobile phone 20 of a moving object increases, the fixed base station will transmit the communication subscribers moving base station. Procedures for determining whether a mobile telephone served by a fixed base station or moving base station, similar to the procedures described in the application above relating to the procedures for determining that the moving base station must be selected to service a mobile phone, i.e. on the basis of the signal level and error rate. Thus, when initiated communication with the mobile phone or when it is determined that must be transferred communication subscribers, the mobile phone can be submitted for service from the moving base station to a fixed base station or Vice versa. Every mobile phone monitors the pilot signals from fixed and moving base station and synchronizes with the base station providing the best signal. In the so-called "soft" mode mobile phone can "connect" with three n the STV increases, stationary or slow-moving base station will be disabled. In a more loaded zones where the speed of traffic flow will vary between zero and 60 mph (96 km/h) speed base stations can be installed, for example, equal to 30 mph (48 km/h). In this case, the moving base station must be able to serve the entire transport stream in the range of 0-60 mph (0-96 km/h).

It is obvious that the above described device is only an illustration of the application of the principles of the present invention and that a qualified expert in this field of art may devise other devices without deviating from the scope of the present invention, which is limited in the accompanying claims.

Captions to drawings

To Fig. 1:

1 - to the telephone network

2 - fixed base station

3 - mobile phone mobile object

4 - moving base station

5 - fixed port radio

To Fig. 2 - 5:

1 - the interface circuit radio

2 - processor

3 - multiplexer receiving/transmitting connection

4 - station firewall mates

To Fig. 6:

1 - 16 wideband

To Fig. 7:

1 - channel 19

2 vignolo object

2 - moving base station

3 - fixed port radio

To Fig. 9:

1 - station roaming

2 - moving base station.

1. The mobile communication system for communication with mobile phones (20, 25), including fixed radio ports (50) connected to the telephone network (60) containing a radio interface for transmitting signals to mobile phones and receive radio signals from mobile phones, characterized in that the mobile communication system also includes a mobile base station (30), placed so that they can move independently from the mobile phone (20) in a limited area relative to the fixed port communication (50), thus the mobile base station (30) contains the first radio interface (132), the receiving radio signals transmitted by mobile phones (20, 25), and transmitting radio signals on a fixed port communication (50), and a second radio interface (132), the receiving radio signals transmitted by a fixed port communication (50), and transmitting radio signals to mobile phones (20).

2. The system under item 1, characterized in that the mobile phones (2) moving along the road on the Sabbath. (10).

3. The system under item 2, wherein the mobile base station (30) is placed can be moved along the guide (35), oriented parallel to the roadway (10).

4. The system under item 3, characterized in that the fixed port communication (50) is located on one side of the guide (35) against the roadway (10).

5. The system under item 1, characterized in that the mobile base station (30) includes a first antenna (100) connected with the first radio interface (132) and aimed at mobile phones (20) and second antenna (101) connected with the second radio interface (132) and aimed at a fixed port communication (50) and the processor (130) connected to the first and second radio interfaces.

6. The system under item 1, characterized in that the radio signals transmitted between the mobile base station (30) and a fixed port communication (50), is transmitted in accordance with a multiple access systems with code division multiple access direct sequence and transmission Protocol signals extended range.

7. The system under item 6, characterized in that the signals transmitted from the mobile phone (20) to the mobile base station (30), lane is in the radio (50), passed at the second power level higher than the first power level.

8. The system under item 6, characterized in that the signals transmitted between the fixed port communication (50) and the mobile base station (30), pass in the process of implementing full-duplex communication with time division.

9. The system under item 6, characterized in that the signals transmitted between the fixed port communication (50) and the mobile base station (30), pass in the process of implementing full duplex frequency division.

10. The system under item 6, characterized in that it contains many fixed radio ports (50) and multiple mobile stations (30), in which each of the mobile base station (50) are synchronized with the selected fixed port communication (50) through the transmission of pilot signals to the selected fixed port of the radio.

11. The system under item 1, characterized in that the transmit signals from a fixed port communication (50) to the mobile base station (30) at the first power level, and from the mobile base station (30) to a mobile phone (20) on a second power level higher than the first power level.

12. The system under item 1, characterized in that it includes MnO mobile base station (30) includes a processor (130), perform the function of communication subscribers and receive existing relationships subscribers for mobile phones (20) in the associated service area.

13. The system under item 12, characterized in that each mobile base station (30) has a processor (130), which defines the location of the identified mobile phone (20) in the associated service area.

14. The system under item 1, characterized in that the mobile base station (30) has a processor (130), perform the function of locating the identified mobile phone (20) and the transmission of signals corresponding to the radio signals received from a telephone station (60).

15. The system under item 1, characterized in that it contains many fixed radio ports (50), and a restricted zone is defined relative to the set of fixed radio ports (50).

16. The system under item 1, characterized in that the signals transmitted by the first radio interface (132) to the fixed radio ports (50) correspond to the signals received by the first interface (132) from mobile phones (20), and the signals transmitted by the second radio interface (132) to mobile phones (20) correspond to the signals, p. 1, characterized in that it contains mobile phones (20), moving along the roadway (10), multiple mobile base stations (30) placed with the possibility of movement on the guide (35), running parallel to the roadway (10) and having a first edge adjacent to the roadway (10), and a second edge, opposite the first, many spaced from each other a fixed radio ports (50), located on the second edge of the rail (35), each mobile base station (30) includes a processor (130) and associated with the first radio antenna (100) towards the first edge guide (35), and the second radio antenna (101) towards the second edge guide (35), each fixed port communication (50) includes a processor (150) and an associated radio antenna (110), aimed at the guide (35), the processor (130) is sensitive to radio signals, received the first antenna (100) for transmission of radio signals through the second antenna (101) to the fixed radio ports (50), and the processor (150) is sensitive to radio signals received through the associated radio antenna (110) for transmitting corresponding signals to the telephone station (60).

18. The system is e signals are transmitted to the telephone station (60).

19. The system under item 1, characterized in that the mobile base station (30) is moved at a given speed in a certain direction.

20. The system under item 19, wherein the set speed is transferred from the base station (30), is a function of the average speed of many mobile phones (20).

21. The system under item 1, characterized in that the mobile base station (30) is moved in a first given direction and associated with mobile phones (20) moving in the same direction, further comprises a second movable base station (40), moving in a second direction, opposite the first, and is associated with other mobile phones (25), moving in the second direction.

22. System on p. 21, characterized in that it is mobile phones (20) move one to the roadway (10), and other mobile phones (25) move on to another road pavement (15), mobile base station (30) moves along the guide (35) adjacent to the first road surface (10) and located between the first road surface (10) and the second road surface (15), and another mobile base station (40) moves along the second rail (45), adjacent to the second road mobile port communication (50) is located between the first (35) and second (45) guides.

23. The system under item 1, characterized in that the fixed port communication (50) is connected to the telephone station (60) via the fiber optic ring (55).

24. The system under item 1, characterized in that it contains multiple fixed base stations (70) connected to the telephone station (60) via the fiber optic ring (55) that is sensitive to radio signals transmitted to the mobile phone (20), for transmitting corresponding signals to the telephone station (60).

25. The system under item 1, characterized in that it contains many fixed radio ports (50) and a plurality of mobile base stations (30), each fixed port communication (50) sensitive to radio signals transmitted is identified by the mobile base station (30) and each fixed port radio sensitive to radio signals from the identified mobile base station, calculates the symbol-quality signal for data submitted to the transmitted radio signals, and transmitting to the telephone station (60) of the data signals corresponding to the transmitted radio signals together with the corresponding symbol of quality signals, when this telephone station (60) sensitivity is atih from the selected one of the fixed radio ports (50), with the preferred symbol of quality signals.

26. The system under item 1, characterized in that it contains a lot of fixed radio ports (50) and a plurality of mobile base stations (30), each fixed port communication (50) sensitive to block data received from the telephone station (60), for transfer of the respective radio to the selected one of the mobile base station (30), the telephone station (60) transmits the specified data block intended for the selected one of the mobile base station (30), to the selected one of the fixed radio ports (50), and each selected one of the fixed radio ports (50) sensitive to receive the specified data block for transmission to the respective radio signals to a selected one of the mobile base station (30).

27. The system under item 22, wherein the specified data block is passed to each selected one of the fixed radio ports (50) in a time sequence, and the selected one of the fixed radio ports (50) transmit appropriate signals in the appropriate time sequence.

28. The system under item 1, characterized in that it sterigma base station (30) has an associated service area and provides the functionality of sending and receiving existing relationships subscribers for mobile phones in the associated service area.

29. The system under item 1, characterized in that it contains a lot of mobile base stations (30), each mobile base station (30) has an associated service area and performs many functions, including the determination of the location of the identified mobile phone in the related service.

30. The system under item 1, characterized in that it contains the first and second telephone station (60,215) connected to the telephone network, and a multitude of fixed radio ports (50,212) to communicate with mobile phones (20,25), each of the fixed radio ports (50,212,252) is connected to one of the telephone stations (60,215), the first and second closed paths (200,205), each of which has opposite ends and supports with the possibility of moving a lot of mobile base stations (30,210,250), and the telephone exchange (60,215) provide the registration position of each mobile base stations (30,210) on each circuit (200,205) and provide the transmission of a warning signal through one of the fixed radio ports (50,212,252) to the movable base stations (30,210) approaching one of the opposite ends of one of the paths (200,205), and mobile La transmission of existing connections with mobile phones to other mobile base station (30,210,250).

31. The system under item 30, wherein one of the opposite ends of one of the paths (200,205) overlaps one of the opposite ends of the other path (200,205).

32. The method of transmitting signals in a mobile communication system between telephone switching station (215) is connected to a fixed port, radio, and mobile phone, moving in a certain direction and transmitting radio signals, characterized in that in it the movement of the mobile base station (210) associated with the telephone switching stations (215), is carried out in a certain direction along the roadway (206) in the area bounded by relatively movable port radio (212), the mobile base station (210) of the radio signals transmitted from the mobile phone, and the transmission of signals from the mobile base station (210) to a fixed port radio (212) corresponding to the radio signals transmitted from the mobile phone.

33. The method according to p. 32, characterized in that it provides for the reception of the mobile base station (210) of the radio signals transmitted from a fixed port radio (212), and transmission from the mobile base station (210) to a mobile phone rings the same time, that in it the movement of the mobile base station (210) is carried out in one direction along a path (205) having opposite ends and passing essentially parallel to the roadway (206) for a limited distance, and the movement of the mobile base station (210) in the reverse direction, when the mobile base station reaches one end of a limited distance.

35. The method according to p. 32, characterized in that it is the movement of multiple mobile base stations (210) in a certain direction, determining the quality of the received signals of the identified mobile phone in each of the multiple mobile base station (210) and the selection of the preferred signal quality.

36. The method according to p. 32, characterized in that it is the transmission of radio signals between the mobile base station (210) and a fixed port radio (212) in accordance with multistation access in systems with code division multiple access direct sequence and transmission Protocol signals extended range.

37. The method according to p. 33, characterized in that the radio signals from mobile phone to mobile base station (210) transmitted through FDI (212) passed at the second power level, which is less than the first power level.

38. The method according to p. 33, characterized in that the radio signals from fixed port radio (212) to the mobile base station (210) passed at the first power level, and the radio signals from the mobile base station (210) to a mobile phone to transmit at the second power level higher than the first power level.

39. The method according to p. 33, characterized in that the radio signals between the fixed port radio (212) and the mobile base station (210) passed in the process of implementing full-duplex communication with time division.

40. The method according to p. 33, characterized in that it is the synchronization of the mobile base station (210) with the selected mobile phone by transmitting the pilot signal from the mobile base station to the selected mobile phone.

41. The method according to p. 33, characterized in that it made the movement of multiple mobile base stations (30,210) in a certain direction, establishing a telephone connection between the telephone station (60,215) and mobile phone (20,25) through selection of one of the movable base stations (30,210), the current control signal transmission from the mobile phone the mobile base station (30,210) from the selected mobile base station (30,210) to another mobile base station (30,210).

 

Same patents:

The invention relates to a mobile communication system, and more particularly to a method and apparatus for managing a service channel of a base station to improve the efficiency and stability of the system characteristics, multiple access, code-division multiplexing

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The invention relates to communication systems and can be used to provide voice and data services for the population of terminals

FIELD: radio communications.

SUBSTANCE: proposed method intended for single-ended radio communications between mobile objects whose routes have common initial center involves radio communications with aid of low-power intermediate transceiving stations equipped with non-directional antennas and dropped from mobile object, these intermediate transceiving drop stations being produced in advance on mentioned mobile objects and destroyed upon completion of radio communications. Proposed radio communication system is characterized in reduced space requirement which enhances its effectiveness in joint functioning of several radio communication systems.

EFFECT: reduced mass and size of transceiver stations, enhanced noise immunity and electromagnetic safety of personnel.

1 cl, 7 dwg, 1 tbl

FIELD: radio communications.

SUBSTANCE: proposed method intended for data transfer from mobile object to stationary one residing at initial center of common mobile-object route using electronic means disposed on stationary and mobile objects involves radio communications with aid of low-power intermediate transceiving stations equipped with non-directional antennas and dropped from mobile object, these intermediate transceiving drop stations being produced in advance on mobile object. Proposed radio communication system is characterized in reduced space requirement which enhanced its effectiveness in joint functioning with several other radio communication systems.

EFFECT: reduced mass and size of transceiver stations, enhanced noise immunity and electromagnetic safety of personnel.

2 cl, 6 dwg

FIELD: radio communications.

SUBSTANCE: proposed method intended for data transfer to mobile object from stationary one residing at initial center of mobile-object route using electronic means disposed on stationary and mobile objects involves radio communications with aid of low-power intermediate transceiving stations equipped with non-directional antennas and dropped from mobile object, these intermediate transceiving drop stations being produced in advance on mobile object. Proposed radio communication system is characterized in reduced space requirement which enhances its effectiveness in joint functioning with several other radio communication systems.

EFFECT: reduced mass and size of transceiver stations, enhanced noise immunity and electromagnetic safety of personnel.

2 cl, 6 dwg, 1 tbl

FIELD: radio communications.

SUBSTANCE: proposed method for single-ended radio communications between mobile objects whose routes have common initial center involves use of low-power intermediate transceiving stations equipped with non-directional antennas and dropped from mobile objects. Proposed radio communication system is characterized in reduced space requirement and, consequently, in enhanced effectiveness when operating simultaneously with several other radio communication systems.

EFFECT: reduced mass and size, enhanced noise immunity and electromagnetic safety for attending personnel.

2 cl, 7 dwg, 1 tbl

FIELD: radio communications.

SUBSTANCE: proposed method intended for data transfer to mobile objects from stationary one residing at initial center of common mobile-objects route using electronic means disposed on stationary and mobile objects involves radio communications with aid of low-power intermediate transceiving stations equipped with non-directional antennas and dropped from first mobile object. Proposed radio communication system is characterized in reduced space requirement which enhances its effectiveness in simultaneous functioning of several radio communication systems.

EFFECT: reduced mass and size of transceiver stations, enhanced noise immunity and electromagnetic safety of personnel.

2 cl, 7 dwg, 1 tbl

FIELD: radio communications.

SUBSTANCE: proposed method intended for data transfer to mobile objects from stationary one residing at initial center of common mobile-objects route using electronic means disposed on stationary and mobile objects involves radio communications with aid of low-power intermediate transceiving stations equipped with non-directional antennas and dropped from first mobile object, these intermediate transceiving drop stations being produced in advance on first mobile object. Proposed radio communication system is characterized in reduced space requirement which enhances its effectiveness in joint functioning with several other radio communication systems.

EFFECT: reduced mass and size of transceiver stations, enhanced noise immunity and electromagnetic safety of personnel.

2 cl, 7 dwg, 1 tbl

FIELD: radio communications.

SUBSTANCE: proposed method for single-ended radio communications between mobile objects having common initial center involves use of low-power intermediate transceiver stations equipped with non-directional antennas and dropped from mobile objects. Proposed radio communication system is characterized in reduced space requirement and, consequently, in enhanced effectiveness when operating simultaneously with several other radio communication systems.

EFFECT: reduced mass and size, enhanced noise immunity and electromagnetic safety of personnel.

2 cl, 7 dwg, 1 tbl

FIELD: radio communications.

SUBSTANCE: proposed method intended for data transfer to mobile objects from stationary one residing at initial center of common mobile-objects route using electronic means disposed on stationary and mobile objects involves radio communications with aid of low-power intermediate transceiving stations equipped with non-directional antennas and dropped from first mobile object, these intermediate transceiving drop stations being produced in advance on first mobile object and destroyed upon completion of radio communications between mobile and stationary objects. Proposed radio communication system is characterized in reduced space requirement which enhances its effectiveness in joint functioning with several radio communication systems.

EFFECT: reduced mass and size of transceiver stations, enhanced noise immunity and electromagnetic safety of personnel.

2 cl, 7 dwg, 1 tbl

FIELD: radio communications engineering; digital communications in computer-aided ground-to-air data exchange systems.

SUBSTANCE: proposed system designed to transfer information about all received messages irrespective of their priority from mobile objects to information user has newly introduced message processing unit, group of m modems, (m + 1) and (m + 2) modems, address switching unit, reception disabling unit whose input functions as high-frequency input of station and output is connected to receiver input; control input of reception disabling unit is connected to output of TRANSMIT signal shaping unit; first input/output of message processing unit is connected through series-connected (m + 2) and (m + 1) modems and address switching unit to output of control unit; output of address switching unit is connected to input of transmission signal storage unit; t outputs of message processing unit function through t respective modems as low-frequency outputs of station; initialization of priority setting and control units, message processing unit clock generator, and system loading counter is effected by transferring CLEAR signal to respective inputs.

EFFECT: enhanced efficiency due to enhanced throughput capacity of system.

1 cl, 2 dwg

FIELD: radiophone groups servicing distant subscribers.

SUBSTANCE: proposed radiophone system has base station, plurality of distant subscriber stations, group of modems, each affording direct digital synthesizing of any frequency identifying frequency channel within serial time spaces, and cluster controller incorporating means for synchronizing modems with base station and used to submit any of modems to support communications between subscriber stations and base station during sequential time intervals.

EFFECT: enhanced quality of voice information.

12 cl, 11 dwg

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