Asymmetric power control downlink channel in a communication network mdcr

 

The invention relates to communication systems, multiple access, code-division multiplexing (mdcr) and, more specifically, to a system power control direct communication channel from the base station to the mobile stations. A method and system for power control of a direct communication channel based on the implementation of independent power control of the base station when the mobile station is in a state of transmission service. The method and system include the transfer of various bits control the power to each base station, to independently control the transmission power of each base station. The technical result achieved by the invention is to provide reduce interference with other mobile stations in a cell of the base station when the mobile station is in a state of transmission service. 4 C. and 11 C.p. f-crystals, 5 Il.

The invention relates to communication systems, multiple access, code-division multiplexing mdcr, and more specifically, to a system and method of power control of a direct communication channel from the base station to the mobile station.

The prior art One type of cellular communication system uses a technology known is evidence from one another using the unique codes, assigned to them, at the same time sharing the same frequency band at the same time. Since all users share the same bandwidth, they interfere with each other. The level of this noise must be controlled to ensure the required quality of service to ensure the frequency error is below an acceptable level. A more detailed description mdcr and differences between mdcr, MKV (multiple access with time division) and MDRI (multiple access with split frequency) is shown in the "Multiple Access Code Division multiplexing", "Communication", February 1990, Fred Baumgartner, which is incorporated into this description by reference.

In Fig.1 schematically shows a communication system based on mdcr containing the mobile station 10, the base station 20, the reverse channel 30, which represents a communication channel by the electromagnetic wave transmitted from mobile station 10 to base station 20, and a direct channel 40, which represents the communication channel by the electromagnetic wave transmitted from the base station 20 to the mobile station 10.

One of the ways to control the noise level in the communication system based on mdcr is the management capacity is l), or from the base station 20 to the mobile station 10 (direct channel), control or change. Power control of the reverse link channel is required because of the so-called problem of "near/far". This problem occurs when the mobile station near the base station is experiencing a relatively low power loss during propagation, and thus, the base station detects a very high level of the signal of the mobile station while the mobile station is located further exposed to relatively high losses of the distribution, and thus, the power detected by the base station from this mobile station, very small. Power control for the reverse channel, thus, used to give the team a nearby or remote mobile stations to reduce or increase the transmission power to the base station, as is known from the prior art.

Due to the variability of the propagation conditions of radio waves as moving mobile stations update rate control commands power should be relatively large. The frequency with which updates the management teams capacity in existing systems IS-95 based mdcr equal to 800 Hz. In the region of the ligature is not as critical, as for the reverse communication channel, and used a relatively slow update scheme of control commands power (typically less than 1 Hz). In modern PSS (personal communication systems) standard J-STD-008 update scheme of the management teams power to direct the communication channel has been adapted to have a refresh rate of 50 Hz. The phenomenon that occurs during the propagation of electromagnetic waves, known as fast fading, cannot be adequately regulated by the scheme changes the power control downlink channel operating at relatively low frequencies, such as less than 50 Hz. This leads to the necessity of the use of direct channels of graphics relatively high power in order to reduce the error to below acceptable. However, the increasing power of the direct TV schedule significantly reduces the throughput of the direct channel.

In order to solve the above problems, recently was proposed standard mdcr W-mdcr (wide frequency mdcr) to increase the speed of power control direct channel to 800 Hertz. The mobile station evaluates the quality of the direct communication channel known in the prior art diagram of power control in a closed loop and is this the mobile station in the transmission status of the service or not. These bits control commands power sent with a frequency of 800 Hertz via the control channel of the reverse link.

In the proposed standard W-mdcr reverse channel has two main sub-channel: an access channel, and the channel graph. The channel graph, in turn, has four subchannel: pilot channel, main channel, an additional channel and a control channel. In the proposed standard W-mdcr the same control bits power is sent to all base stations when the mobile station is in a state of transmission service. Thus, the control circuit power standard W-mdcr does not allow for independent control of the power of the base station when the mobile station is in the transmission mode of service. This leads to the fact that some base stations transmit more power than required. As a consequence, the level of interference to other mobile stations, created a direct channel of communication increases and thus leads to lower bandwidth.

The proposed control structure, channel implemented in the mobile station for the standard W-mdcr, plautia to block CRC (ICC) 50, to detect the error condition. The output signal ICC 50 is fed into the encoder 60 of the shank. The output shaft 60 is fed into the convolutional encoder 70. The output signal of the convolutional encoder 70 is sent to the multiplexer 80. Sixteen bits power control (BOOM) in 20 milliseconds, or 1-bit power control (BOOM) 1.25 milliseconds served in the block 90 repetition. The output signal of block repetition supplied to the multiplexer 80, so that there are three bits of the power control for each information bit, and the output signal of multiplexer 80 is 384 bits. A more detailed description of the structure of the control channel and the components of this structure are presented in the description of the TIA/EIA/IS-95A (which is included in the present description by reference).

The result is the structure of the control channel, which does not allow for independent control of the power of the base station, because the bits of the control command output is sent to the base station are generated based on the aggregate quality of two or more signals received from multiple base stations.

Thus, there is a need for a new high-speed diagram of the power control downlink channel Dlott base station. This provides a reduced level of interference to the direct communication channel, which in turn increases the throughput of the direct communication channel.

The essence of the invention.

In accordance with the present invention the proposed system and method of power control of a direct communication channel of the communication system based on mdcr through the implementation of independent power control of the base station when the mobile station receives the transmission status of the service.

In accordance with the present invention also proposed a system mdcr containing the set of base stations for the generation of the combined power level of the direct channel, with each of the multiple base stations has a set of bits of the control and mobile stations that are in electronic communication with multiple base stations and the mobile station is capable of measuring the combined power level of the direct channel and independently set the value of each of the sets of bits in the power control based on the combined power level of the direct channel.

Additionally, in accordance with the present invention, the proposed system mdcr in which the mobile station compares the combined level modnote team each of the multiple base stations to reduce power if the combined power level of the direct channel is greater than this threshold. The present invention also provides a system mdcr, in which each of the multiple base stations has the level of pilot signal of a direct communication channel with the mobile station compares the relative levels of each of the levels of the pilot signal of a direct communication channel to determine which of the multiple base stations has a maximum level of the pilot signal of the direct communication channel. The mobile station may compare the combined power level of the direct channel with a threshold and to adjust the value of each of the sets of bits in the power control to issue a command to the selected base stations from multiple base stations to reduce power, and one of the multiple base stations having the maximum level of the pilot signal of the direct communication channel, issue the command to increase the power, if the combined power level of the direct channel is less than or equal to the threshold.

In accordance with the present invention is additionally provided with the system mdcr, in which one of the multiple base stations has a maximum level of pilot signal of a direct communication channel with the mobile station compares ing power, to issue a command to the selected base stations from multiple base stations, reduce power, and one of the multiple base stations having the maximum level of the pilot signal of the direct communication channel, issue the command to increase the power, if the combined power level of the direct channel is less than or equal to a threshold.

Additionally, in accordance with the present invention is also provided with the system mdcr containing the set of base stations for the generation of the combined power level of the direct channel, and each of the multiple base stations is associated with a set of bits in the power control and mobile stations that are in electromagnetic communication with multiple base stations and the mobile station is configured to independently adjust the value of each of the sets of bits in the power control based on the combined power level of the direct channel. The mobile station may compare the combined power level of the direct channel with a threshold and to adjust the value of each of the sets of bits in the power control to issue a command to each of the multiple base stations to reduce power, if the combined power level of the direct channel more this is and communication moreover, the mobile station compares the relative levels of each of the levels of the pilot signal of a direct communication channel to determine which of the multiple base stations has a maximum level of the pilot signal of the direct communication channel. The mobile station may compare the combined power level of the direct channel with a threshold and to adjust the value of each of the sets of bits in the power control to issue a command to the selected base stations from multiple base stations to reduce power, and one of the multiple base stations having the maximum level of the pilot signal of the direct communication channel, issue the command to increase the power, if the combined power level of the direct channel is less than or equal to a threshold.

In accordance with the present invention is additionally provided with the system mdcr, in which one of the multiple base stations has a maximum level of pilot signal of a direct communication channel with the mobile station compares the combined power level of the direct channel with a threshold, and adjusts the value of each of the sets of bits in the power control to issue a command to the selected base stations from multiple base stations to reduce power, and one who Mandu to increase capacity, if the combined power level of the direct channel is less than or equal to a threshold. Additionally, the system mdcr of the present invention can ensure the preservation and maintenance of one of the sets of bits in the power control of each of the multiple base stations.

In accordance with the present invention also provide a method of operation of the system mdcr containing steps to maintain multiple base stations for the generation of the combined power level of the direct channel, with each of the multiple base stations associated with the bit set power control; maintenance of the mobile station, which is in electronic communication with multiple base stations; the configuration of the mobile station so as to independently adjust the value of each of the sets of bits in the power control based on the combined power level of the direct channel, adjust the value of each of the sets of bits in the power control based on the combined power level of the direct channel. This method may further comprise the steps of comparing the combined power level of the direct channel with a threshold and adjust the value of each of the sets of bits in the power control to issue a command to each of God.

In accordance with the present invention can be also provided a method of operation of the system mdcr, in which each of the multiple base stations has a level of the pilot signal, the direct communication channel, and the method further comprises the step of comparing the relative levels of each of the levels of the pilot signal is a direct channel to determine which of the multiple base stations has a maximum level of the pilot signal of the direct communication channel. The method may further comprise the step of comparing the combined power level of the direct channel with the threshold control value of each of the sets of bits in the power control to issue a command to the selected base stations from multiple base stations to reduce power, and one of the multiple base stations having the maximum level of the pilot signal of the direct communication channel, issue the command to increase the power, if the combined power level of the direct channel is less than or equal to the threshold.

Additionally, in accordance with the present invention may be provided with a method of operation of the system mdcr, in which one of the multiple base stations has a maximum level of the pilot signal of the direct communication channel, and the method of dopolnitelnogo of sets of bits in the power control, to issue a command to the selected base stations from multiple base stations to reduce power, and one of the multiple base stations having the maximum level of the pilot signal of the direct communication channel, issue the command to increase the power, if the combined power level of the direct channel is less than or equal to a threshold. This method may further comprise the step of preservation and maintenance of sets of bits in the power control in the set of base stations.

In accordance with the present invention also provide a method of operation of the system mdcr containing the measurement stages combined power level of the direct channel of the multiple base stations, each base station has a set of bits power control; comparing the combined power level of the direct channel with a threshold and independent adjustment of the values of each of the sets of bits in the power control to issue a command to each of the multiple base stations to reduce power, if the combined power level of the direct channel more of the threshold.

Additionally, in accordance with the present invention is provided a method of operation of the system mdcr containing the measurement stages combined power level of the direct channel of many bagnal direct channel; comparison of the combined power level of the direct channel with a threshold; comparing the relative levels of each of the levels of the pilot signal of a direct communication channel to determine which of the multiple base stations has a maximum level of pilot signal of a direct communication channel; and independent adjustment of the values of each of the sets of bits in the power control to issue a command to the selected base stations from multiple base stations to reduce power, and give the team one of the multiple base stations having the maximum level of the pilot signal of a direct communication channel to increase capacity, if the combined power level of the direct channel is less than or equal to the threshold. The method may further comprise the step independent adjustment value of each of the sets of bits in the power control to issue a command to each of the multiple base stations to reduce power, if the combined power level of the direct channel more of the threshold.

An advantage of the present invention is to reduce interference with other mobile stations in a cell of the base station when the mobile station is in a state of transmission service.

Another advantage of the present izobreteniya of the invention is the reduction of the total required capacity of the direct channel.

A brief description of the drawings Fig.1 is a communication system based on mdcr known from the prior art; Fig.2 is a diagram known from the prior art structure of a control channel used in the return channel standard -mdcr; Fig.3 is a diagram of a conventional communication network mdcr in accordance with the present invention; Fig. 4 is a structure diagram of a control channel according to the present invention; Fig.5 is a block diagram of the complete method in accordance with the present invention.

Conventional phone system, which implements the present invention shown in Fig.3. The system shown in Fig.3, uses a technique of modulation mdcr for communication between the mobile stations of the system, the phone blocks and the Central points of cells or base stations. Cellular systems in large cities can have hundreds of sites in the Central points of the honeycomb, serving hundreds of thousands of mobile phones. The use of technology mdcr greatly simplifies the problem of increasing the number of users in the system of this size compared to conventional cellular systems, frequency modulation.

In Fig.3, the controller 110 and the switch system, which are also called switching center mobile phones CKPT usually contains in what anziani. The controller 110 also controls the routing of telephone calls from the public switched telephone network of General use (PSTN) to the appropriate base station for transmission to the appropriate mobile station. The controller 110 also controls the routing of calls from the mobile station via at least one base station to the PSTN. The controller 110 sends a call established between mobile users through the appropriate base station, such as mobile stations such users usually are not connected directly with each other.

The controller 110 may be connected to base stations through various means such as dedicated telephone lines, optical fiber links or microwave links. It is obvious that the controller 110 and the switch system may be combined with any number of base stations. In Fig.3 shows three such typical base station 112, 114 and 116, together with a typical mobile station 118, which is a cell phone. Arrows 120A-120b define the communication channels between the base station 112 and the mobile station 118. Arrows a-122b define the possible communication channel between the base station 114 and the mobile station 11 is of 118.

Service area Central point of the cell or base station, or cell geographically planned so that the mobile station is typically located closer to one Central point honeycomb than the other. When the mobile station is waiting, i.e., does not serve the current call, it continuously monitors the transmission of the pilot signal from each of the nearest base station. As shown in Fig.3, the pilot signals are respectively transmitted to the mobile station 118 base stations 112, 114 and 116, respectively, on direct communication channels 120b, 122b and 124b. The mobile station then determines in which cell it is, by comparing the levels of the pilot signals transmitted from these specific centres hundred.

In the example shown in Fig.3, the mobile station 118 may be considered to be closest to the base station 116. when the mobile station 118 initiates a call control message is transmitted to the nearest base station, the base station 116. The base station 116, after receiving a request message at the call signals to the controller 110 of the system and transmits the number to call. The system controller 110 then connects the call through the PSTN to the intended receiver.

If the call must be initiated within CTED, pass the message retrieval call (paging), the mobile station assigned to the recipient. When the mobile station receives a message of defiance, she is responsible managing message that arrives to the nearest base station. This control message signals the system controller that a particular base station has established communication with this mobile station. The controller 110 then connects the call through the base station to this mobile station.

If the mobile station 118 out of the service area of the original base station, the base station 116, an attempt is made to continue the call by its connection through another base station. In the process or condition of the transmission service there are different ways to initiate the transfer, or referral through another base station.

When the transfer initiated by the mobile station, the mobile station uses the receiver search to scan the transmission of the pilot signal of the neighboring base stations 112 and 114, in addition to performing other functions. If it is determined that the level of the pilot signal of base stations 112 and 114 is greater than the level of the pilot signal of the base station 116, the mobile station 118 transmits uprtou, identifying the base station with a high level signal, in addition to the information requesting the transfer to this base station. The current base station 116 then transmits that control message to the controller 110.

In accordance with the present invention, each base station is assigned a set of bits in the power control, which should be transmitted on the reverse channel of the mobile station. This arrangement allows the mobile station to communicate with each base station independently, taking into account the need to increase or decrease the power of the base station. Thus, the power for each of the direct communication channel can be controlled independently. Thus, the capacity of the first base station can be increased, while the capacity of the second base station may be reduced to minimize interference with other mobile stations that are not in the upload service.

In Fig.4 presents a diagram of the structure of a control channel according to the present invention. Reference numbers used in Fig.4, which is identical with the reference numbers used in Fig.2 denote the same components. Fig. 4 look identical to Fig.2, except that the block 295 Odo base station N (ECN), where one frame is transmitted in 20 milliseconds. Bits of power control for BS, bits of power control for BC2 to bits power control for BCN can be formed in the mobile station using the control channel structure shown in Fig.4.

Functional block 295 associations can generate multi-level bits. For example, can be used amplitude and pulse modulation (aim) to send control bits power.

The number of different sets of bits in the power control is obviously limited by the fact that the power assigned to all the officers bits in a period of 1.25 milliseconds, remains constant. This is because all the bits of power control are sent within 1.25 milliseconds; for example, can be sent 2 control bits for 1.25 milliseconds, of which one-bit power control assigned to the first base station and the second bit controls the power assigned to the second base station; and can be sent to the 3-bit power control for 1.25 milliseconds, where a one-bit power control will be sent to the first base station, the second bit of the power control will be sent to the second base station and the third bit of the control monoculodes within a period of 1.25 milliseconds, then the practical limit may be, for example, equal to 3 or 4 managing bits of 1.25 milliseconds, since the reception of the base station may not be able to detect intended her bit power control due to reduced individual power level of the bit caused by division of the total power assigned to a single frame, equally divided between each BOOM (bit power control).

According to the present invention, the power level of the bits of the power control can be controlled independently of the 10 bits of control information, as follows from the structure of the control channel, to provide N bits of the power control 1.25 milliseconds, or in other words, to control the N base stations.

According to the present invention, there are two rules for forming bits power control for different base stations in the mobile station.

Rule 1. If the combined power of the direct channel exceeds some predefined threshold, the mobile station should form the bits of the power control to give a command to all base stations to reduce power (to reduce the power of their respective direct channels).

Rule 2. If the combined power Prov levels of the pilot signal of a direct channel of communication (Ec/Io) for all involved base stations in the communication status of the service. The mobile station shall then adjust the bit power control of the base station corresponding to the maximum (Ec/Io), to increase the capacity (to increase the capacity of the corresponding forward channel) and the other base stations to reduce power.

These rules and method according to the present invention is represented by the block diagram in Fig. 5. The method begins at step 300. At step 305 determines whether the mobile station in the transmission status of the service. If the mobile station is not in a state of transmission service, there is a transition to step 310, where the power of the direct channel is compared with a predetermined threshold value. If the capacity of the direct channel more predetermined magnitude threshold transitions to step 315, where the bits of the power control regulated to reduce power. If the capacity of the downlink channel does not exceed the threshold, then transitions to step 320, where the bits of the power control regulated to increase power. After adjustment bits power control to reduce power stage 315 or increasing capacity at stage 320 transitions to step 325 in which all control bits mossotti power control could be transferred from the mobile station to the respective base stations.

If the mobile station is in a state of transmission service, as determined at step 305, then transitions to step 330, where the combined power of the direct channel is compared with a predetermined threshold. If the combined power of the downlink channel is greater than a predefined threshold transitions to step 335. At step 335 all bits control the power of all base stations are regulated to reduce power, and transitions to step 325, where all the bits of the power control packaged in a control channel. If the combined power of the direct channel is not more than the threshold, as determined at step 330 transitions to step 340, where is the maximum ratio Ec/Io of all involved base stations. The process then proceeds to step 345, where bit power control for base stations with a maximum Ec/Io is adjusted to increase power and control bits power for other base stations are regulated to reduce power. Then it moves on to step 325, where all the bits of the power control packaged in a control channel. The process ends in step 350.

It is obvious that the present invention could the Les of the invention.

Claims

1. System multiple access, code-division multiplexing (mdcr) containing the base station, each of which has a power level, and a mobile station, which is in electronic communication with said base stations and measuring the combined power level of the direct channel of said base stations, wherein each of the base stations associated one of the bits of the power control set bits in the power control, the mobile station is configured to measure the power levels of the direct communication channel each of these base stations, moreover, the mentioned mobile station identifies each of the bits of the power control in the set of bits in the power control based on the measured power level of the direct channel of each of the base stations and the combined power level of the direct channel and transmits the bits set the power management of each of these base stations.

2. The system under item 1, characterized in that the said mobile station compares the combined power level of the direct channel with a threshold, and adjusts the value of each of these sets of bits in the power control to give Pramogu channel more of the threshold.

3. The system under item 1, characterized in that each of the said multiple base stations has a level of the pilot signal of the direct communication channel, and referred to the mobile station compares the relative levels of each of the levels of the pilot signal of a direct communication channel to determine which of these sets of base stations has a maximum level of the pilot signal is a direct link.

4. The system under item 3, characterized in that the said mobile station compares the combined power level of the direct channel with a threshold, and adjusts the value of each of the sets of bits in the power control to issue a command to the selected base stations of the said multiple base stations to reduce power and to one of the said multiple base stations having the maximum level of the pilot signal of the direct communication channel, issue the command to increase the power, if the combined power level of the direct channel is less than or equal to the threshold.

5. The system under item 1, characterized in that one of the said multiple base stations has a maximum level of the pilot signal of the direct communication channel, and referred to the mobile station compares obyedinenny the surveillance capacity, to issue a command to the selected base stations of the said multiple base stations to reduce power, and referred to one of the said multiple base stations having the maximum level of the pilot signal of the direct communication channel, issue the command to increase the power, if the combined power level of the direct channel is less than or equal to the threshold.

6. The system under item 1, characterized in that each of the said multiple base stations maintains and supports one of the above sets of bits in the power control.

7. The method of operation of the system mdcr, namely, that perform the measurement of the combined power level of the direct channel of base stations, each base station has a power level of a direct communication channel and is assigned to one of the bits of the power control set bits power control, wherein the combined power level of the direct channel is compared with a predetermined threshold, determine the bits of the power control set bits power control, issue a command to all base stations to reduce power, if the combined power level of the direct channel more than a predetermined threshold, and transmit n what about the work system mdcr, namely, that perform the measurement of the combined power level of the direct channel from the base stations, each base station has a power level of the direct channel and assigned to one of the bits of the power control set bits power control, wherein the combined power level of the direct channel is compared with a predetermined threshold, determine which of the base stations has a maximum power level of the direct communication channel, determine that one of the base stations having the maximum power level of the direct channel should increase power, while the other base station to reduce the power if the combined power level of the direct channel is less than a predetermined threshold, or equal to, and transmit the set power control containing the bits of the power control, the base stations.

9. The method according to p. 8, characterized in that it further perform the step independent of the adjustment values of each of the said sets of bits in the power control to issue a command to each of the multiple base stations to reduce power, if the combined power level of the direct channel more of the threshold.

11. The method according to p. 10, characterized in that it further perform the steps of comparing the combined power level of the direct channel with a threshold and adjust the value of each of the sets of bits in the power control to issue a command to each of the multiple base stations to reduce power, if the combined power level of the direct channel more of the threshold.

12. The method according to p. 10, characterized in that each of the nutrient perform the step of comparing the relative levels of each of these levels of the pilot signal, direct channel to determine which of these sets of base stations has a maximum level of the pilot signal is a direct link.

13. The method according to p. 12, characterized in that it further perform the step of comparing the combined power level of the direct channel with a threshold and adjust the value of each of the said sets of bits in the power control to issue a command to the selected base stations from multiple base stations to reduce power, and one of the multiple base stations having the maximum level of the pilot signal of the direct communication channel, issue the command to increase the power, if the combined power level of the direct channel is less than or equal to the threshold.

14. The method according to p. 10, wherein one of the said multiple base stations has a maximum level of the pilot signal of the direct communication channel, and additionally performs the step of comparing the combined power level of the direct channel with a threshold and adjust the value of each of the said sets of bits in the power control to issue a command for selected stations from the said multiple base stations to reduce power, and one of the multiple base stations having the maximum the capacity of the direct channel is less than or equal to the threshold.

15. The method according to p. 10, characterized in that it further perform the step of preserving and maintaining the above-mentioned sets of bits in the power control in the above-mentioned set of base stations.

 

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1 cl, 8 dwg

FIELD: mobile radio communication systems.

SUBSTANCE: proposed method and device are intended to control transmission power levels for plurality of various data streams transferred from at least one base station to mobile one in mobile radio communication system. First and second data streams are transmitted from base station and received by mobile station. Power-control instruction stream is generated in mobile station in compliance with first or second data stream received. Power control signal is shaped in mobile station from first power control instruction stream and transferred to base station. Received power control instruction stream is produced from power control signal received by base station; power transmission levels of first and second data streams coming from base station are controlled in compliance with power control instruction stream received. In this way control is effected of transmission power levels of first data stream transferred from each base station out of first active set to mobile station and of transmission power levels of second data stream which is transferred from each base station out of second active set to mobile station.

EFFECT: enlarged functional capabilities.

80 cl, 21 dwg

FIELD: radio engineering.

SUBSTANCE: proposed method and device designed for fast synchronization of signal in wade-band code-division multiple access (WCDMA) system involve use of accumulations of variable-length samples, testing of decoder estimates for reliability, and concurrent decoding of plurality of sync signals in PERCH channel. Receiver accumulates samples required for reliable estimation of time interval synchronization. As long as time interval synchronization estimates have not passed reliability tests, samples are accumulated for frame synchronization estimates. As long as frame synchronization estimates have not passed reliability tests, samples are analyzed to determine channel pilot signal shift.

EFFECT: reduced time for pulling into synchronism.

13 cl, 9 dwg

FIELD: satellite navigation systems and may be used at construction of imitators of signals of satellite navigational system GLONASS and pseudo-satellites.

SUBSTANCE: for this purpose two oscillators of a lettered frequency and of a fixed frequency are used. Mode includes successive fulfillment of the following operations - generation of a stabilized lettered frequency, its multiplication with an oscillator's fixed frequency and filtration of lateral multipliers with means of filters of L1 and L2 ranges and corresponding option of a fixed and a lettered frequencies.

EFFECT: reduces phase noise and ensures synthesizing of lettered frequencies of L1 and L2 ranges of satellite navigational system from one supporting generator at minimum number of analogous super high frequency units.

3 cl, 1 dwg

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