Method and device for using accessible power in communications system

FIELD: mobile communications.

SUBSTANCE: method includes stages: (A) identification of at least one portion of time frame in direct communication line, while this identified frame portion has available data capacity fro transfer of at least portion of at least one non-planned before traffic flow in addition to any traffic flows, previously planned for transfer along direct communications line and (B) concurrent transfer of previously planned traffic flows and portion of previously not planned traffic flow during identification portion of frame, while total power, assigned for planned and not planned traffic flows does not exceed maximal limit of power.

EFFECT: maximized use of accessible power.

7 cl, 9 dwg

 

The technical FIELD

This invention relates to the field of communication systems and, in particular, to maximize the use of available capacity in the communication system, where the signals associated with multiple subscribers can be simultaneously transmitted over a common channel.

PRIOR art

Telecommunications traffic can be divided into many classes. According to one classification schemes traffic is divided on the basis of the speed with which the transmitted traffic, and traffic priority. In accordance with this classification scheme, the traffic is classified as a traffic with constant bit rate (CBE), traffic with variable bit rate (CHD) or traffic with the available bit rate (DBS). Traffic CBE is a fixed bit rate regardless of the requirements of the data that must be transferred. This is the most expensive type of available service. Traffic CHD allows the subscriber to set the speed at which the traffic is destined for each transmission. Traffic DBS is traffic with the lowest priority. Traffic DBS is transferred to any available speed. Accordingly, the DBS service is relatively inexpensive.

One example of the traffic that the best way is sent using the services CBE, is a standard dial-up traffic schemes with tirovannoj speed. Examples of signals with the applicable requirements, appropriate to the services of CHD are services voice and Internet video. As traffic CBE and traffic CHD are services in real time with a relatively high demand for quality services. Quality of service is an indicator of the reliability of successful data reception, as well as delays that occur when receiving. Traffic DBS has a lower priority and do not provide a high probability that the traffic will be delivered within a short time interval. Traffic, suitable for DBS services, associated with the transfer of files and send e-mail. If the load is low and, therefore, the delay is low, then most of the gear world wide web use the DBS service.

The possibility of direct lines of communication cellular communication system (i.e. the number of subscribers and bit rate of each subscriber) is partly determined by the ability of the power amplifier used to amplify the signals transmitted from base stations of the system. For example, in the communication system, multiple access, code-division multiplexing (mdcr), each of the transmitted data streams are assigned a certain code channel. Such a system mdcr described in detail in U.S. patent No. 4901307 on "communication System multiple access spread spectrum, using the appropriate satellite or terrestrial repeaters", which ceded to the assignee of this invention and are incorporated in this description by reference. Each channel in the system mdcr is modulated by the frequency band (which is the same for each code channel) and combined to form channel mdcr. The amount of power required in each code channel, depends on the bit rate of the traffic on this code channel gain of the antenna at the receiving station (such as a mobile station) and a transmitter (such as a base station), path loss of signal propagation (i.e. the magnitude of the coefficient of attenuation) between the base station and the remote station to which the information is transferred, the noise level in the mobile station and the effectiveness of the applied modulation scheme. The noise level in the mobile station includes thermal noise, noise from other cell from which the mobile station is not receiving, and noise due to non-orthogonal components of signals from cell to cell in which the mobile station receives. Channel mdcr amplified by the power amplifier of the base station. The base station must transmit full power, sufficient to set the target mobile station has received the transmitted thereto signals with the desired values of the coefficients of the error. Base the station uses different procedures so the full amount of power required by the channel mdcr, does not exceed the amount of power that the amplifier can provide power without unwanted distortion.

The possibility of direct lines of communication cellular communication systems are also limited by the amount of interference from your own cell cell of the subscriber (non-orthogonal components, if the signal is transmitted orthogonal TIA/EIA-95 (telecommunications industry Association/electronic industry Association, USA), and interference from signals transmitted by other mobile cells). This provides a limit regardless of the power values, which transmits the base station. In this situation, the increase in transmit power of the base station is above certain limits only insignificant increases the capabilities of the system.

The maximum output power of the base station is determined by many design parameters associated with the power amplifier of the base station. Two such parameters of the amplifier are power dissipation and unwanted radiation. Unwanted radiation are radiation outside the operating frequency range of the transmitted signal. A large part of the undesired radiation due to intermodulation products in the power amplifier. Intermodulation products is one of promiscuity. Intermodulation distortion increase as the power amplifier is controlled so as to approach the maximum output signal of the amplifier. Regulators such as the Federal communications Commission, often limit unwanted radiation. Industry standards can also set limits on unwanted emissions in order to avoid mutual interference in the same system or another system.

In order to maintain unwanted emissions within the required limits, the possibility of the output power of the power amplifier are selected to provide a very slight probability that the unwanted radiation will exceed the desired limit. When exceeding the desired maximum power output power base station can limit the output power to maintain unwanted emissions within the prescribed limits. However, the requirement for the power amplifier is determined by the set of traffic streams, which are transmitted at the same time. Each transmitted stream of traffic may begin and end at any time. Therefore, it is difficult to determine the amount of power required from the base station to transmit in each time.

An important characteristic in the communication system is the signal-to-noise. In the a or the communication system, the desired signal-to-noise ratio equal to the product of bit rate and the required energy per bit, divided by the total spectral density of the noise. The error rate of the communication system is often expressed through the frequency of the bit-error or error rate in frames. The error rate is a decreasing function of the signal-to-noise. If the received signal-to-noise ratio is too low, then the probability of error is very high. Thus, the communication system tries to maintain the signal-to-noise ratio for the received signal is equal to or above the required signal-to-noise ratio for the desired frequency errors.

Accordingly, in mobile radio systems, such as system mdcr, where many subscribers simultaneously carrying out the transmission on a shared channel, the number of simultaneous subscribers CHD and CBE permitted in the telecommunications system, are usually limited. This limit is chosen to maintain a low probability of exceeding the maximum output power. When selecting a limit value for the number of subscribers should be taken into account properties of a variable speed services CHD and dynamic capacity management in a straight line.

Though the characteristics described above have been described in connection with a direct line, similar characteristics are also applicable to the reverse link.

The INVENTION

The claimed method of maximizing the use of available power of the communication system (such as system mdcr), which uses a common frequency channel for simultaneous transmission of signals associated with multiple subscribers. In accordance with the described method is a direct link in the mobile radio system supports multiple data streams associated with multiple subscribers, and uses at least one common channel from the transmitting station (such as base station) to the receiving stations (such as mobile station). A direct line of communication depends on the maximum power limit. Originally defined the first output power level associated with the simultaneous transmission of the first set of traffic flows from the base station to mobile stations in a straight line. Then the first output power level is compared with the maximum power limit. Identified at least one time frame in a straight line, with the "available capacity" for the transfer of at least one additional stream of traffic. The available capacity means the amount of power required for transmission in a straight line, is lower than the power level at which transmission on a straight line connection can be made without unwanted distortion. The first set of traffic flows and a portion of at least one additional stream of traffic then simultaneously transmitted over p is at least one frame in a straight line. Additional traffic flow may alternatively be transmitted intermittently in a straight line and have a lower priority than the first set of traffic flows. Intermittent transmission refers to transmission in frames that are not adjacent to each other in time (i.e. frames that do not include intermittent stream, are transmitted between frames, which really include intermittent stream).

In accordance with the preferred embodiment, any available capacity in a straight line is allocated to the second set of traffic flows, in which each element of the second set is transmitted intermittently in a straight line connection with the use of one or several frames. In this embodiment, the second power output level associated with the simultaneous transfer of a group of frames from the second set of traffic flows in a straight line, and the sum of the first power output level (i.e. power output level associated with the first set of traffic flows in a straight line and the second power output level does not exceed the maximum power limit. In a particularly preferred embodiment, the sum of the first and second levels of the output power is maintained at a constant level (preferably equal to the maximum power limit) on the set BP is time frames. When implementing the invention in combination with fast power control of the straight line defining the distributions of the power required for the implementation of the invention preferably is carried out in the device power control, located in the base transceiver station. Alternatively, in cases where the system includes a base station controller, which handles many of the transceivers of the base stations, determining distributions of power can be implemented in the scheduler, located in the base station controller, and then can be transmitted to the corresponding base transceiver station.

In accordance with an additional aspect, when the available power in a straight line is present in the group of one or more frames and is allocated to the second set of traffic flows, at least one frame in the second set of traffic flows initially transmitted in a straight line with the first energy of the characters, which is not sufficient for correct demodulation of the specified target mobile station. In this embodiment, at least one frame in the second set of traffic flows, originally transferred from the first energy of the symbols transmitted again at a later time with a different energy of character, which the traveler may not be sufficient in itself for correct demodulation of the specified target mobile station. Re-transmitting at least one frame is performed one or more times until the amount of received energy of the symbols will not be large enough for proper demodulation of the specified target mobile station.

In cases when a frame is initially sent from the first energy value of the characters, which is not sufficient for correct demodulation of the specified target mobile station, the mobile station may determine that the received frame was adopted correctly and inform the base station using the specified Protocol. The Protocol may be a Protocol with either positive or negative acknowledgement. In other words, the mobile station may either send an acknowledgement when it is able to correctly demodulate the information, or, alternatively, the mobile station may send a negative acknowledgement every time she is not able to correctly demodulate the information. Because the base station can calculate the energy of the symbol information received in the mobile station, a mobile station may, but need not, send information about the energy back to the base station when using any Protocol. Thus, the transfer of explicit additional information about the energy from the mobile station to the base station is La select the power level for the second transmission frame to the mobile station is not required in this invention.

In accordance with another aspect, the first set of traffic streams includes at least one stream of traffic with constant bit rate and at least one data stream with variable bit rate and frames in the stream of traffic with constant bit rate, frames and the second set of traffic flows time-shifted relative to each other. A group of frames in the second set of traffic streams may optionally include messages of different lengths. In addition, each of the traffic flows may have different length frames.

One aspect of the invention, which provides for initial transmission of data traffic from the base station with the energy of the characters, which is not sufficient for correct demodulation in a given receiving mobile station, and then later re-transmits the same information traffic from the base station with the additional energy of the characters, which in itself is not sufficient for correct demodulation in a given receiving mobile station, may be applied, in General, when the transmission or rear lines of communication to achieve temporary explode. In other words, this aspect of the invention can be used to send any traffic flow, not just one specific traffic flows mentioned in the above embodiments, about what westline.

BRIEF DESCRIPTION of DRAWINGS

The features, objectives and advantages of the present invention are explained in the following detailed description, illustrated by the drawings, in which identical reference positions indicated corresponding elements in all the drawings and showing the following:

figure 1 is a graphical representation of traffic in a direct line of communication cellular communication system for a period covering many a time frame with available capacity;

figure 2 is a graphical representation of traffic in a direct line of communication cellular communication system for the period covering multiple time frames, while all the available power in a straight line dedicated traffic DBS;

figure 3 is a graphical representation of traffic in a direct line of communication cellular communication system for the period covering multiple time frames, and to transmit signals applied time shifts;

4 is a graphical representation of the traffic in a direct line of communication cellular communication system for the period covering multiple time frames, and applies the specified scheduling policy;

5 is a timing diagram of the Protocol with acknowledgement of reception between the base station and the mobile station communication system suitable for implementation in the system corresponding to the invention;

6 is a timing diagram FR the stake with a negative acknowledgement between the base station and the mobile station communication system, suitable for realization in the system corresponding to the invention;

7 is a timing diagram of the Protocol with a negative acknowledgement between the base station and the mobile station communication system suitable for implementation in the system corresponding to the invention;

Fig is a block diagram showing the controller of the base station, which includes a scheduler for allocating power direct line of communication between different traffic flows in accordance with this invention;

Fig.9 is a block diagram showing two base transceiver stations, each of which includes a device power control for power distribution direct line of communication between different traffic flows in accordance with this invention.

DETAILED description of the INVENTION

Figure 1 shows a graphical representation 10 of the traffic in a direct line of communication cellular communication system. Graphical representation 10 covers the period of time that includes time frames 18a-f. Time frames 18a-f may have a duration of, for example, twenty milliseconds. Graphical representation 10 illustrates the use of communication system to send traffic straight line, which includes three traffic flow CBE with a constant bit rate 14a-C. All traffic flows CBE 14a-peredautsa for all time frames 18a-f. In addition, in the graphical view 10 shows three traffic flow ischemic heart disease with variable bit rate 14d-f. Data streams CHD 14d-f alternate between the States "on" and "off" and have a variable speed transmission in each time frame 18a-f.

All traffic flows 14a-f are transmitted simultaneously over a common channel using, for example, modulation mdcr. In line, illustrated by the representation of 10, the time frame 18C has the greatest load because the output power required from the base station is the largest in the time frame 18C. More specifically, the time frame 18C requires more power than other time frames 18a-f due to traffic flows CHD 14d-f. Time frame 18E has the lowest load, as the two traffic flow may 14, 14f require a small power in the time frame 18E due to the relatively low bit rates. Unfilled region 22 graphical representation 10 indicate unused capacity and, therefore, available information capacity in the described communication system.

Figure 2 provides a graphical representation of traffic in a direct line of communication cellular communication system during the period covering the time frames 18a-f. The graphical representation illustrates the use of a communication system for transmission of traffic. Traffic on the includes three traffic flow CBE 14a-C and three traffic flow CHD 14d-f. Traffic flows 14a-f are transmitted, as described previously for the graphical representation shown in figure 1. In addition, the graphical representation of figure 2 shows the traffic flows DBS 20A, b. It should be noted that traffic flow DBS 20A has priority over traffic flow DBS 20b. Traffic flows DBS 20A, b are transmitted simultaneously over the same channel as the traffic flows 14a-f using, for example, modulation mdcr.

Traffic flows DBS 20A, b are using all available output power of the base station represented by the unfilled regions 22 a graphical representation, shown in figure 1. In this example, the base station loads direct line of communication traffic CBE and CHD in each time frame 18a-f. Then the base station determines what time frames 18a-f have additional capacity available for traffic DBS by comparing the power required for transmission of the CBE and CHD within each such frame with the maximum value of output power. Then the base station plans or transfers traffic DBS in order to take advantage of the available transmit power, which otherwise would remain unused. Traffic DBS is consistent with the relative priorities of each of the traffic flows DBS. This way of planning is possible in the example, asanam in figure 2, as the length of the frame traffic CBE, IBS and DBS are identical. It should be borne in mind that the threads CBE or disease can be used to fill the available transmit power in the same way that flows DBS, provided that the requirements for quality of service for these flows can be satisfied.

The base station may use different strategies to determine how best to plan or to stream data DBS in order to take advantage of the available transmit power in a straight line, which otherwise would remain unused. For example, after determining the power required to transmit each of the different threads DBS buffered for transmission, the base station can simply choose one or more threads DBS with the requirements of power, possibly equal to the available capacity. Alternatively, the base station may divide the available power equally among all threads DBS buffered for transmission. Moreover, the DBS threads can be transmitted intermittently. Intermittent transfer refers to the transfer of personnel that are not adjacent to each other in time (i.e. frames that do not include intermittent stream, are transmitted between frames, which really include intermittent the th stream).

As more fully explained below, when scheduling threads DBS for transmission to the base station may choose to transfer this thread DBS at full power (i.e. the power level, which calculates the base station, required for correct demodulation of the transmitted information in the mobile station) or, alternatively, the base station may deliberately choose data transmission traffic DBS initially when power is less than the total power required for correct demodulation, and then, at a later time, re-transmit the same information traffic capacity less than full capacity. The mobile station receiving multiple transmissions of the same data traffic will then be combined (or aggregated) both send character by character in the buffer in order to correctly demodulate the information traffic. In one embodiment, the base station allocates power among many different threads so that no thread was originally transmitted with sufficient power for correct demodulation of the specified receiver. Through the initial transmission of the data traffic at a power less than the power required for correct demodulation specified by the receiver and then re-transmit the same information at a later in EMA, the base station may implement a temporary separation in combination with transmission DBS. In an environment with fading this reduces the total required Eb/N0. Other parameters that the base station can be adjusted in combination with the distribution of power, which otherwise remained d1unused, are the baud rate and code rate of the transmitted stream.

One of the advantages of full filling the straight line method, described above, is that the full power of Iortransmitted from the base station in a straight line is constant. Consistency in loading a straight line can simplify capacity management direct line of communication. But it is not necessary to use all available bandwidth for a straight line. Moreover, even if you use all available bandwidth (data capacity), not necessarily to fill the entire remaining capacity of the entire flow (flow) traffic DBS. For example, if you have enough power to send additional traffic flows CBE or disease in a straight line, in one example, the available bandwidth capacity may be used for transmission of the traffic flow CBE or disease.

Figure 3 shows a graphical representation 50 of traffic to direct the first line of cellular communication systems in the period covering time frames 18a-f. Graphical representation 50 illustrates the use of communication systems for the transmission of traffic, including three traffic flow CBE 14a-C and three traffic flow CHD 14d-f. Traffic flows 14a-C are transmitted, as described previously for graphical representations 10, 30. However, in the graphical representation 50 frames of the traffic flows CHD 14d-f offset of a time frame 18a-f. Bias frames in the graphical representation 50 reduce peak processing (i.e. the amount of information that must be processed at the same time, the peak use of the relay (the amount of information that must be transmitted to other components of the infrastructure, such as transceivers, base stations and base station controllers) and the delay in the communication system. Shifts frames of this type are well known.

In addition, the shifts shown in figure 3, to cause a significant change in the total of the required transmission power in the time frame 18a-f. In radiotelephone systems mdcr operating in accordance with the proposed TIA/EIA (Standard compatibility the mobile station and a base station for dual-mode cellular systems with spread spectrum", TIA/EIA/IS-95), from July 1993, the content of which is also incorporated by reference (standard IS-95), there are sixteen possible time shifts in PR is the business time frame 18a-f. Therefore, the power level can vary up to sixteen times in each frame. When the power level is changed sixteen times, there is some statistical averaging of the load, as the number of traffic flows is large. However, the power level still varies considerably. This can lead to difficulties in the distribution of power flow DBS 20A, b. However, the known methods of power control with high performance. Procedures for the management of power in a typical case involved eight hundred times per second for flow and therefore increase or reduce the required transmit power for every stream of 1.25 MS. System fast power control of direct line of communication described in the patent application U.S. No. 08/842993 for "Method and device for power control of direct line, which is assigned to the assignee of the present invention and the contents of which are incorporated in this description by reference.

All frames 18a-f graphical representations 10, 30, 50 have the same duration. In the preferred embodiment, they comprise 20 MS. In addition, you can use frames of different duration. For example, can be used frames having a duration of 5 MS, alternating frames with a duration of 20 MS. Alternativemusic be used frames, having a large length, for example, 40 MS, alternating frames with a duration of 20 MS.

Figure 4 provides a graphical representation 70 of traffic in a direct line of communication cellular communication system for a period covering the time frames 18a-f. A graphical representation 70 illustrates the planning strategy, which is adapted to maintain the output power of the base station at a constant level. As in the case of the system shown in figure 2, in the system shown in figure 4, the base station schedules the traffic flows DBS 20A, 20b in order to take advantage of the available transmit power (i.e., the blocks 22, shown in figure 3), which otherwise would remain unused. The power level of the traffic flows DBS 20A, b may be dynamically configured to maintain the output power constant. Thus, the base station can reduce the capacity of the traffic flows DBS 20A, b, if it has insufficient available information capacity. The setting can be made in the middle of the frame duration of 20 MS. As a result, the power level of the traffic flows DBS 20A, b may be lower than required for adequate reception when using dynamic configuration. Similarly, the base station can increase the capacity of the traffic flows DBS 20A, 20b, if the base station is I have available information capacity. Different scheduling policies described above with reference to figure 2, can also be applied in the context of the system shown in figure 4.

Consider the method mentioned above in which the base station intentionally transmits information traffic DBS initially with a capacity of less than sufficient power required for correct demodulation of the specified receiver. Specialists in the art should understand that the successful transfer of bits of information in the communication system requires a certain relationship, the minimum energy per bit to spectral noise density, Fb/N0. The probability of bit error is a decreasing function of Eb/N0. The frame consists of a set of bits. The frame is erroneous if any of the bits in the frame is erroneous. In the unencrypted communication system is high enough ratio Eb/N0required for each bit, so that the frame was not mistaken. However, in systems using coding and interleaving, this requirement does not necessarily apply to each bit. Rather, these systems usually require a minimum of secondary relations Eb/N0. The average energy level really required in systems using coding and interleaving may depend on the duration of the averaging, in particular from encode and interleave and values of the energy, taken at different times.

Coding and interleaving are typically used to counter the effects of fading, which often take place in the transmission channels. In communication systems, compatible with the standard IS-95, coding and interleaving are performed on a frame duration 20 MS. Thus, in systems of this type the total received energy per frame, is an important parameter. Therefore, for explanations, see graphical representations, as well as the system and method of the present invention, it is useful to describe more fully the energy transfer and frequency errors.

The total received energy per frame, can be represented as Et/N0. If there are N encoded symbols per frame, each of which has the same relation to Es/N0then:

Et=N Es/N0,

where Esthe energy of the symbol.

Let (Es/N0)rkithe ratio of Es/N0for the i-th received symbol of the k-th frame. In addition, let (Et/N0)rk- accept energy in the k-th frame. Then the ratio of the energy spectral density of the noise received in the k-th frame, can be expressed as:

The probability of correct reception of the k-th frame (i.e. the k-th frame, the enactment of the energy sufficient for correct demodulation of the specified receiver) is proportional to (Et/N0)rk. Thus, if (Et/N0)rkexceeds the specified value, there is a high probability that the k-th frame is accepted correctly. Es/N0adopted in the mobile station, can be determined from PrC/N0/R, where Pr- adopted energy code rate and R is the transmission rate. An alternative relation Es/N0can be determined by any of numerous methods known to experts in this field of technology. In the case of this system, as the system standard IS-95, Esthe energy per symbol, the received code channel and Pr- power received in the code channel.

If the transmit power of the traffic flow DBS may change, you must change either the bit rate or accept Es/N0. Rapid change in the transmit power of the traffic flow DBS is desirable to maintain a high level of output power of the base station. However, it is difficult reliably to indicate a new transmission speed of the mobile station. For the system standard IS-95 power output level can be changed every of 1.25 MS, as described above. Thus, it is possible to provide for the application of accepted Es/Noand, according to the respectively, may vary (Et/N0)rk. The base station waste consumes energy when it transmits with a power level sufficient to provide a large enough (Et/N0)rkin order to achieve very low error probability. Conversely, if the base station transmits with a power level that is too low, this can cause the error probability in the frame will be too high.

The base station may compute (Et/N0)rktaken at the mobile station, based on the magnitude of the power transferred by the code channel. The base station can perform this calculation by summing the energies of encoded symbols, which are transmitted in a coded channel. Because full (Et/N0)rkis a good indication of the probability of correct reception of the frame, the base station can determine, were passing a sufficiently high energy level to achieve the desired probability of correct reception. If the transferred energy level is not high enough, then the base station may increase its level of transmission power for the later parts of the frame to provide the desired transmitted value (Et/N0)k. Similarly, if the base station transmits more energy than necessary is in the early part of the frame, it can reduce the amount of energy later in the frame and use the saved energy to other code channels. From the base station is not required, so it really was calculated (Et/N0)rk, the base station may instead calculate the normalized value of the energy of the transmitted symbols. The base station may determine the desired normalized total transmitted energy per frame using any of the methods known to experts in this field of technology.

As described below, this invention can be used without passing in an explicit form for more information about energy from the mobile station to the base station. In particular, the mobile station can determine if adopted correctly received frame or not, and perform Protocol acknowledgment from the base station. The Protocol may be a Protocol with either positive or negative acknowledgement. In other words, the mobile station may either send an acknowledgement when it is able to correctly demodulate the information, or, alternatively, the mobile station may send a negative acknowledgement whenever she is not able to correctly demodulate the information. Two exemplary Protocol acknowledgment that can be used Dan is the first invention, described below with reference to figure 5 and 6. If the control is already transmitted power, the base station can estimate the energy of the symbol information received by the mobile station. Then the mobile station may, although not necessarily, to convey information about energy back to the base station using any Protocol. Thus, the transfer of such information about the energy from the mobile station back to the base in the present invention is optional.

Dynamic change of the amount of transmitted power can negatively affect the demodulation process in the receiver of the mobile station. In the receiver the optimal process consists in weighing the accumulated amplitude signal-to-noise ratio for each character. This weighing process is described in patent application U.S. No. 08/969319 "Method and apparatus for efficient retransmission using the accumulation of symbols", which is assigned to the assignee of the present invention and the contents of which are incorporated into this description by reference. In most implementations of the standard IS-95 weighting uses the common pilot signal as the power of the code channel is constant across the frame and the ratio of Ewith/I0the pilot signal is scaled by the value of the signal-to-noise. When using bystrodejstvuyuschih management direct power line connection (described in patent application U.S. No. 08/842993, cited above), the capacity can vary in the frame so that the power of the code channel is not in a constant proportion of the common pilot signal. Changes in power within the frame do not create problems, since the mobile station, if necessary, may be appropriate weighting. However, if the base station reduces the transmission energy code channel to use in one or more other channels, the weighting can give very different results and the mobile station may not be aware of the power used by the base station. For example, the weighting applied to the stream DBS 14f graphical representation 50 at the end of the first frame, may be much larger than the weighting applied at the end of the third frame. It is clear that a large amount of power is transferred to the stream at the end of the first frame and that little power is transferred at the end of the third frame. For accurate weighing in such situations, the mobile station can estimate the energy and noise in the received symbols, and to apply the appropriate weighting.

Instead of using the normal channel pilot signal for weighting described above, it is also possible to perform weighting with the use of a dedicated channel pilot signal. Dedicated channel pilot signal is a pilot signal, the art is meant for a specific mobile station. The power allocated to the pilot signal should be part of the power transmitted to the specific mobile station. Using a dedicated pilot signal, you can adjust the level of the pilot signal proportional to transmitted power on the data channel. The disadvantage of this approach is that it has the effect of increasing the variance of the estimation phase, which leads to deterioration of characteristics. Moreover, using a dedicated channel pilot signal weighting may be ineffective if the mobile station is transferred to the DBS service is not of type and no DBS type requires a high level of the pilot signal for correct operation. In such cases, a dedicated pilot signal will be maintained at a high level, which leads to excessive power consumption and prevents the use of a dedicated channel pilot signal for the weigh-in.

Under the above conditions, the mobile station may not receive the traffic flow DBS with the power required for demodulation of the stream with a sufficiently low number of errors (i.e. for correct demodulation of the thread). The mobile station may use a combination of cyclic redundancy check code (CEC), the test error rate re-coded symbols and check the total received energy to determine whether the frame means is further errors. Can also be used and other methods known to experts in this field of technology.

In accordance with this invention, when the error detection frame, the mobile station stores the received code symbols for the frame buffer. In accordance with one embodiments of the present invention, the mobile station then calculates (Et/N0)kbased on energy, adopted in the frame. Can then be calculated the amount of additional (Et/N0)krequired for demodulation of the frame with a desired error rate. The mobile station sends to the base station a negative acknowledgement, and may include the specified assessment required additional (Et/N0)rk. Complete the required (Et/N0)kcan be estimated in this way power control based on the capacity of the external circuit (or threshold)required for the main channel or channel DCCH (channel of data transfer). The patent application U.S. No. 08/842993 (cited above) describes the method of estimating the full desired relationship (Et/N0)kon the basis of the power required by the external circuit. On the other hand, may be a separate method of controlling the capacity of the external circuit for the channel used. It is clear that if the frame is accepted correctly (i.e. with unwanted cyclomatic), (Et/N0)kis insufficient. Thus, the optimum power level can be determined by conventional statistics, which take into account the fact that in previous attempts admission was error. Instead of transferring the amount of additional required (Et/N0)rkthe mobile station can transmit to the base station value (Et/N0)rkthat was taken. The mobile station may also be included in the information sent to the base station, the evaluation values, which is necessary for correct demodulation.

Figure 5 shows a graphical representation 90 showing a timing diagram of the Protocol with acknowledgement of reception between the base station and the mobile station communication system suitable for implementing the method corresponding to the invention. Protocol with acknowledgement, according to the graphical representation 90, can be used in the method of power control, as described above.

A preferred variant of the method according to the graphical representation 90 can be implemented in the system of the third generation standard IS-95. In the system of the third generation standard IS-95 can be used to direct additional channel (F-SCH) for transmitting traffic flows DBS in a straight line. Additional the anal is usually planned by the channel, although it can also be a channel with fixed or variable speed. Channels F-DCCH and R-DCCH is forward and reverse dedicated control channels, respectively. When using an additional channel (F-SCH) for transmitting traffic flows DBS in a straight line in accordance with this invention, the frequency error of the selected control channels DCCH usually lower than the error rate of an additional channel (F-SCH). In the Protocol acknowledgment for graphical representation 90 of the base station transmits the schedule (plan) in messages 94 and 98 control access to the transmission medium (UDS) to the mobile station. Schedule informs the mobile station about several aspects of transmission, which may include, but are not limited to, the number of frames that should be transmitted, the speed of transmission, time of transmission and their frame numbers. In one of the embodiments of the invention the message DCP 94 notifies the mobile station of the transmission rate that should be used. In this embodiment, the mobile station is constantly trying to take direct additional channel (F-SCH.

The base station indicates that the two frame 102, 106 Protocol radio communications (PCR) must be transmitted to the mobile station. PCR is a Protocol framing top-level communication system. Can be used PCR, is such Protocol, described in TIA IS-707, although can be used in various other protocols framing the upper level. In the further description, it is assumed that the frame PCR appears exactly in the frame of the physical layer, although this is not required for this invention. Sequence numbers of frames PCR 102, 106 are k and k+1 respectively. Footage PCR 102, 106 are transmitted over the physical frames i+1 and i+2 respectively. If correct reception of the mobile station transmission frame PCR k+1 (106) it confirms the reception of the frame using the message 112. Since the base station does not accept the ACK frame PCR k (102), the base station sends a new appointment straight line in the message DCP 98, indicating that the frame PCR k is scheduled for re-transmission over the physical frame i+5 (110). Mobile station learns from the message DCP 98 that she should combine the signal adopted for frame i+5 (110) with the signal taken during frame i+1 (102). After the physical frame i+1 is re-transmitted within a physical frame i+5, the mobile station combines the received energy for each symbol in the retransmitted physical frame i+5 adopted by the energy of the initial transmission during frame i+1 (stored in the buffer as described above) and decodes the combined received energy frames, as described you what that is

The mobile station acknowledges receipt of the frame PCR k during frame i+6 using message 114 acknowledgment. With this method, based on the acknowledgement information about the energy shortage is not transmitted to the base station. In other embodiments, implementation of the information about the energy deficit can be transmitted to a base station ACK frame PCR k+2. Thus, in this embodiment, the ACK always carries an estimate of the additional (Et/N0)krequired from the first frame, which was buggy. However, this method may not work satisfactorily, if the last frame in the sequence of frames not received correctly by the mobile station.

When the base station determines that the ACK was not received from the mobile station and it needs to resend the message, the base station determines the level at which you want to send the message. The base station can choose the level based on feedback information about the value of the required energy needed by the mobile station. Alternative base station may estimate the amount of energy that the mobile station has already received, and use this to determine the level for retransmission. The power level selected for retransmission, in one the embodiment will meet the minimum level of energy required for correct demodulation, when the energy of the characters of the original message and the retransmitted message is merged into the buffer of the receiver. The base station can form an estimate of the energy that the mobile station has already received, using information from the forward link power control, transmission rate, propagation conditions, the power values already used for transmission of the frame, and path loss distribution. The actual information used in the development of this assessment may include these or any other options that are available to the base station. Alternative base station may directly transmit a fixed power (or fixed relative power level of the forward link power control) to the mobile station. This fixed power level may be set to the base station.

Instead, the method comprising transmitting base station explicitly message 98 to the mobile station to provide the identification of the re-transmitted frame, the mobile station may, as an option, to define an implicit identification of the re-transmitted frame with an acceptable degree of accuracy of the transferred data. For example, can be used Euclidean distance to determine whether the frame i+5 d is authorized, adopted in the previous frame that have not been confirmed, for example, in frame i+1. Thus, the re-sending explicit messages 98 is not required for this invention. In this alternative embodiment, the mobile station compares the received symbols of the current frame with the characters from all the previous frames stored in the buffer of the mobile station. If the mobile station determines that the re-transmitted frame corresponds to the frame that is already in the buffer, the mobile station combines the energy for each symbol and attempts to decode the frame.

In an alternative embodiment, the Protocol shown in figure 5, the message 94 is not required. Message 94 is used in the embodiment described above, to provide instructions to the mobile station that the frames 102 and 106 must be passed. In this alternative embodiment, the mobile station can alternatively implicitly to determine whether the current frame with a new frame or re-transmitted frame with an acceptable degree of accuracy, based on the transmitted data using the Euclidean distance, as described earlier.

Figure 6 provides a graphical representation 120 timing diagram of the Protocol negative acknowledgement of reception between the base station and mobile station, right on what I implemented in the system, corresponding to this invention. The Protocol negative acknowledgment, according to the graphical representation 120 may be used in the method of power control set forth above.

In the Protocol of a negative acknowledgment, according to the graphical representation 120, the base station informs the mobile station about PCR frames 102, 106, which will be transferred, and frames physical layer to be transmitted through the message DCP 94. Then the base station transmits frames 102, 106 to the mobile station. If the mobile station does not accept the correct frame PCR 102, the mobile station sends a negative acknowledgement 116 to the base station. The base station then transmits a message 98, as described above, and the information of the frame 102 is resubmitted as a frame 110.

One of the drawbacks of the Protocol, based on a negative acknowledgement is that the base station is not able to retransmit the frame 102, if a negative acknowledgement is received from the mobile station. For traffic DBS is the probability that a frame transmitted in a straight line, is erroneous, much more than the probability that a negative acknowledgement is transmitted over the reverse link, is erroneous. This is because the amount of power required is emnd to send a frame with lots of bits in a straight line, significantly higher than the amount of power required for transmission of the acknowledgment. The Protocol with a negative acknowledgement may use the message DCP 98 to indicate that the frame is transmitted again. Message DCP 98 may be similar to the message that is used for Protocol acknowledgment, shown in figure 5. Protocols with a negative acknowledgement can also use the method for determining an implicit identification of the re-transmitted frame, which is similar to the method described for Protocol acknowledgment, shown in figure 5.

There are several other options for the implementation of the Protocol, based on a negative acknowledgement. In one embodiment, the base station informs the mobile station about frames of the original transmission and does not inform the mobile station about the time intervals of the frame transmission. The mobile station demodulates all physical frames. If the mobile station correctly receives a frame of PCR k+1, it transmits a negative acknowledgement for the missing frames (which include the k-th frame) on the reverse dedicated control channel R-DCCH. The disadvantage of this Protocol is that the mobile station does not know when to release the memory used to store the energies of characters from different the frames. This deficiency can be corrected in several ways. One way is providing a fixed amount of memory and unloading mobile station most of the old energies of the symbols of the frames of the physical layer when it needs more memory. Alternatively, the mobile station can unload the memory corresponding to the frame of the physical layer, which was adopted previously specified time in the past.

Another drawback of this Protocol is that the mobile station may not have information about when to send a negative acknowledgement just for the frames that are received with errors. This disadvantage is due to the fact that only a few frames can be correctly taken in first gear. This disadvantage can be overcome, if the base station from time to time transmits the second message of completion to the mobile station on the direct dedicated control channel (F-DCCH. This message perfection informs the mobile station that the base station has transmitted a sequence of frames, thereby allowing the mobile station to determine the frames that should have been taken. The mobile station may then send a negative acknowledgment for the frames that it has not accepted. Any message of completion can be combined is any other message, such as a message that indicates that will be transmitted frames.

It is essential that when the frame initially transmitted energy is not sufficient for correct demodulation of the specified receiver, as described above, and then re-transmitted, re-transmission provides a temporary separation. The total energy of the frame transmission (including retransmission) is lower. In other words, the combined energy of the characters as for the initial transmission and re-transmission (transmission) of the frame is lower than the energy that would be required to send the frame initially at full power (i.e. the power level that was sufficient in itself for correct demodulation of the specified receiver). This can be determined because the required Eb/Ntfor a given error rate in the objects or frequency errors in the frames below when using this method, resubmit.

In addition, it is clear that the fast power control of direct line of communication (as described in the patent application U.S. No. 08/842993, cited above) less important in the case of traffic flows DBS that use resubmission method described above. Fast power control is a direct line of communication is equally important, since the retransmission is a form of control who their power. In addition, the fast power control of direct line of communication may be less important when using the retransmission, since fast power control is a direct line of communication aimed at maintaining Eb/Ntconstant in the mobile station. Thus, it may be preferable not to use fast power control of direct line of communication to DBS services.

In the case of a straight line the base station adjusts its transmit power in the channel, when it is not possible to provide additional capacity for this channel from the base station. This may occur, for example, when the subscriber services CHD or multiple service subscribers CHD, higher-priority thread (thread CBE or disease), or multiple high-priority threads require more transmit power due to different path loss propagation or propagation conditions, or when the losses due to route distribution between the mobile station and the base station.

The invention is described above in relation to changes in the load of the base station during transmission services in a straight line, such as threads CBE and CHD, and to changes caused by capacity management. However, it is clear that the invention can be usefully applied in other situations, including the actual operation of transmission on the reverse link.

In the case of a return line connection, an important parameter is to increase the full value of the noise above thermal noise at the base station. The increase in noise relative to the level of thermal noise corresponds to the load of the reverse link. Loaded the system tries to maintain the increase in noise relative to thermal noise about the setpoint. If this increase in noise is too large, the range in the cell the cell is reduced and the reverse communication line becomes less stable. A large increase in noise over thermal noise also causes a small change in an instant download, which lead to large deviations in the output power of the mobile station. However, a slight increase in noise relative to thermal noise may indicate that the return line has a low load, which leads to the potential cost of available capacity. Specialists in the art it should be clear that to determine the load return line can be used in ways different from measuring the increase in noise relative to the level of thermal noise.

Traffic flows DBS can also be distributed in accordance with available capacity in the return line to maintain a level of noise above thermal noise in a more permanent limits. Basic is the first station can control the transmission return line connection through high-speed control Protocol radio link. The third generation system standard IS-95 is the only stream of power control, which controls the pilot signal, the reverse fundamental channel R-FCH reverse additional channel R-SCH and the reverse dedicated control channel data R-DCCH at the same time. In this embodiment, according to the standard IS-95 is applied at a slower alarm to control power distribution between the channels. Usually the reverse channel R-SCH requires large part of the power transmission, as it carries high-speed data stream. If all channels are controlled by high-speed flow power control, when the base station requiring less power in reverse supplemental channel R-SCH to control loading, the capacity of all channels is reduced. This is undesirable, since the pilot signal and the channel R-FCH and R-DCCH can be received by the base station at a level that is too low.

A single high-speed channel power control from the base station to the mobile station can be used for power control in the reverse link lines in the system standard IS-95 third generation. Speed power control for reverse communication line may be eight hundred bits per second. Although the same speed can be used for control channel R-SCH independently ka is Alov, the rate of 800 bits per second requires more transmit power of the base station than is necessary. Thus, the speed control capacity for R-SCH may be slightly lower, as it should not just be supported in terms of fading. Moreover, power control for R-SCH may be shifted relative to the main stream of power control for channels R-SCH, R-DCCH, and the pilot signal. The message signaling or other signaling scheme can be transmitted to the mobile station to ensure that the relative power control instead of the bit stream of power control.

In an alternative embodiment, a separate low-speed stream of power control may be used to provide correction for all mobile stations regarding their own individual streams of power control. This can be a binary stream that determines the increase or decrease in power for mobile stations regarding their own individual streams of power control. It can also be a three way, which may indicate an increase, decrease or no change of power. In addition, any other known control circuit power can be used to separate low-speed power control.

Described FPIC is b may also be used, when the mobile station has insufficient power to transmit all the threads that you want to transmit to a given receiver when the power level of the intake, which allows a correct demodulation. In this case, the mobile station can reduce the transmitted power in the channel R-SCH to try to maintain the channel R-FCH and R-DCCH at the desired level of output power. This method is similar to the method used in the direct line of communication. Because the base station will receive some power from the mobile station, the amount of power required during re-transmission will be less.

Figure 7 shows the graphical representation 150 illustrating a timing diagram of the Protocol with a negative acknowledgement in the return line between the base station and the mobile station communication system, suitable for use with this invention. The Protocol with a negative acknowledgement according to the graphical representation 150 may be used in the method of power control set forth above.

A large part of the structure synchronization and acknowledgment return line operates in the same manner as described for direct communication line with the following exception. In the return line, the mobile station requests permission to transmit high-speed frame DBS 164 168 by request 176. The base station informs the mobile station when sending frames DBS 164, 168 through the message destination 152. From the mobile station, according to the graphical representation 150, is not required to request retransmission of the frame 164 with errors. However, the base station knows that the frame 164 is received with errors, and plans retransmission if the return line connection available information capacity. Moreover, the message 156 to the negative acknowledgement transmitted by the base station, may include permission to re-transmit the frame 172 power return line and the time interval in which it is passed.

The alternatives described above for direct lines of communication, can also be applied to the reverse link. For example, in one embodiment, the implementation of the return line connection from the mobile station is not required to request transfer using message DCP 176. In addition, from the base station is not required to allow access to the channel with messages DCP 152. In another embodiment, the base station is not required to inform explicitly mobile station using message 176 of the frame in which you want to resend the message.

On Fig depicts a block diagram showing the controller 810 base station (KBS), which includes the em in the scheduler 812 for power distribution direct lines of communication among different data streams in accordance with one embodiments of the present invention. Different strategies for the distribution of power flows for transmission DBS can be implemented in software using the scheduler 812. The work scheduler, which can be modified to include software for power distribution in accordance with this invention, described in patent application U.S. No. 08/798951 on the "New and improved method of scheduling transmission speed straight line, which is assigned to the assignee of the present invention and the contents of which are incorporated into this description by reference. In the embodiment shown in Fig, KBS 800 determines the power distribution for each of the transmitted data streams, then this information is the distribution of power is transmitted to systems 820, 822 transceiver base stations (RBS), which in turn transmit different data streams to one or more mobile stations 830 in accordance with the definitions of power distribution performed in the scheduler 810.

Figure 9 presents a block diagram showing two transceiver a, a base stations, each of which includes a device 821 power control for power distribution direct lines of communication among different data streams in accordance with an alternative done by the means of this invention. An implementation option, shown in Fig.9, is useful in cases when you use fast power control straight line, as in this embodiment, the power distribution is determined in PBS (not 800 KBS), which eliminates the delay resulting from the transmission capacity in a straight line from CBE to KBS and information distribution capacity from 800 KBS to CBE. In the embodiment shown in Fig.9, different strategies of distribution power flow transmission DBS can be implemented in software using devices 821 power control. Each device 821 power control sets the power distribution for each of the data streams that are transmitted to the respective PBS and then PBS transmits different data streams to one or more mobile stations 830 in accordance with the definitions of power distribution performed by the device 821 power control. In another embodiment, the scheduler 810 in KBS can set some General strategy of power distribution, which is carried device 821 power control in the CBE. This has the advantage that the device 821 power control can manage short-term fluctuations without delay between CBE and KBS and provide a coherent strategy planning is of all data streams.

So, when transmission of a time frame 18a-f, there are various planning strategies. Strategy planning staff is a set of rules for determining which signals awaiting transmission, and really entered into the frame. According to one of the planning strategies, the base station may transmit data streams, which may be taken at a sufficient power given receiving mobile station. On the other hand, can be used in the planning strategy, according to which the transmission in direct lines of communication are carried out with sufficient power for correct demodulation in a given receiving mobile station when the first transfer. In another embodiment, the base station can distribute power to multiple threads in such a way that none of the threads is not transmitted with sufficient power for reliable decoding by the receiver without at least one retransmission, as described previously. The baud rate and code rate of the transmitted stream is included in the number of parameters that the base station can be adjusted in this case. In addition, in one of the embodiments of the invention the mobile station has insufficient power to transmit all bit streams. In this case, the mobile station can reduce the transmitted power is ity in reverse supplemental channel R-SCH, to try to maintain the required power level in the channel R-FCH and R-DCCH. This method is similar to the method used for direct communication line. Since the base station takes some power from the mobile station, the amount of power required when re-transmission is lower. It is clear that all the methods described here can be used to establish the call or at any time in the transfer process after a call.

The above description of the preferred embodiments are intended to give the specialist in the art to implement or use the present invention. Various modifications of these embodiments obvious to a person skilled in the art, and the General principles defined in the present description, can be used in other variants of implementation without the use of additional inventions. Thus, the invention is not limited to variants of implementation described above, and corresponds to the widest extent consistent with the described principles and new features. It should also be noted that the sections and subsections in the claims identified by letter and number designations. These designations do not indicate the order of importance is suitable the constraints, or sequential order, in which to perform steps.

1. The method of transmitting information from the base station to the mobile stations in the communication system, comprising the steps: (A) identifying at least one part of the time frame in a straight line, and this identified portion of the frame has the information available capacity to transmit at least part of at least one previously not planned traffic flow in addition to any traffic flows, previously planned for transmission in a straight line and (B) the simultaneous transmission of the previously planned traffic flows and parts previously not planned traffic flow within the identified portion of the frame, the amount of power allocated planned and not planned traffic flow does not exceed the maximum power limit.

2. The method according to claim 1, wherein step (C) includes allocating at least part of the information available capacity of the identified frame is not previously planned traffic flow.

3. The method according to claim 2, characterized in that the said amount of power is essentially equal to the maximum power limit and is maintained at a constant level over a variety of time frames by repeating the steps of claim 1.

4. The method according to claim 2, characterized in that at least part of one the Adra previously not planned set of traffic flows intentionally transmitted through the first power of symbols, which is not sufficient for correct demodulation of the given receiving station.

5. The method according to claim 4, characterized in that it further includes the step of re-transmission in a straight line, at least one part of the information previously transmitted from the first value of the power of symbols, and re-transmitted part of the re-transmitted with the power of the characters, which is not sufficient by itself for correct demodulation of the given receiving station.

6. The method according to claim 5, wherein the re-transmission re-transmitted part is repeated as long as the sum of the received power of the symbols will not be large enough to allow a correct demodulation re-transmitted part of the given receiving station.

7. The method according to claim 6, characterized in that the previously planned data streams include at least one traffic stream with a constant bit rate and at least one stream of traffic with variable bit rate.

8. The method according to claim 7, characterized in that the frames in the stream of traffic with constant bit rate and frames in previously not planned traffic flows time-shifted relative to each other.

9. The method according to claim 8, characterized in that the frames in previously not planned traffic flows include messages of different lengths.

10. SPO is about according to claim 2, characterized in that the traffic flow of the previously planned flows has a frame length different from the length of the frame of the traffic flow from a previously planned flows.

11. The method according to claim 10, characterized in that the additional traffic flow is transmitted intermittently.

12. The method according to claim 11, characterized in that were not previously planned traffic flow has a lower priority than previously planned traffic flows.

13. The method according to claim 1, characterized in that the frames, at least one of the previously planned traffic flows and frames, at least, one not previously planned traffic flow time-shifted relative to each other.

14. The method according to item 13, wherein the frames in at least one of the previously planned traffic flows and frames, at least, one not previously planned traffic flow have different lengths.

15. The method according to claim 1, wherein the communication system uses a modulation multiple access, code-division multiplexing (mdcr).

16. Device for transmitting information from the base station to the mobile stations in the communication system having a base station and multiple mobile stations, in which a direct line of communication, which includes many of the traffic flows is set, at least one channel from the base station to the mobile when anziam, and a direct link is characterized by a maximum power limit, containing (A) a base station controller, which determines the output power level associated with the simultaneous transmission of the first set of one or more sets of traffic from base stations to mobile stations in a straight line, compares the output power to a maximum power within each frame and identifies at least one time frame in a straight line with available information capacity for transmission of the second set of one or more traffic flows, and (V) the transmitter base stations that simultaneously transmits the first set of one or more traffic flows and part of the second set of one or more flows of traffic within at least one frame in a straight line.

17. Device for transmitting information from the base station to the mobile stations in the communication system having a base station and multiple mobile stations, in which a direct line of communication, which includes many of the traffic flows is set, at least one channel from the base station to the mobile stations, and a direct line of communication is characterized by a maximum power limit, containing (A) a means for determining the level of output the power, associated with simultaneous transmission of the first set of one or more traffic flows from the base station to mobile stations in a straight line, (B) means for comparing the output power to a maximum power within each frame, (C) means for identifying at least one time frame in a straight line with available information capacity for transmission of the second set of one or more traffic flows, and (D) a means for the simultaneous transmission of the first set of one or more traffic flows and part of the second set of one or more traffic flows within at least one frame in a straight line.

18. The method of transmitting traffic information from the base station to the mobile station in a communication system having a base station and multiple mobile stations, comprising the steps: (A) intentional transmission of data traffic from the base station with the first value of the power of symbols, which is not sufficient for correct demodulation of the data traffic of the mobile station, and (C) after step (A), re-transmission of traffic information originally transmitted with the first capacity value of the symbols from the base station to the mobile station, and traffic is re-transmitted at the step (C) will complete the through the thickness of the characters, which is also not sufficient in itself for correct demodulation of the data traffic of the mobile station.

19. The method according to p, characterized in that it further includes step (C) repeating step (C)until the sum of the power values of the symbols used for transmission of traffic information originally transmitted with the power of the characters is insufficient for correct demodulation, will not be large enough to allow a correct demodulation of the mobile station.

20. The method according to p, characterized in that the additional value of the power of symbols used for re-transmitting the traffic information in step (B)is determined in the base station using fast power control in a straight line.

21. The method according to p, characterized in that it further includes the steps of determining in the mobile station received power value corresponding to the traffic information transmitted from the base station in step (A); transmitting the received power value from the mobile station to the base station; and additional capacity value of the characters used for re-transmitting the traffic information in step (B)is determined at the base station in accordance with the power value transmitted from the mobile station.

22. The method according to item 21, characterized the eat, that the received power value transmitted from the mobile station to the base station using a Protocol with ACK.

23. The method according to item 22, wherein the Protocol with acknowledgement is transmitted between the base station and the mobile station using forward and reverse control channels.

24. The method according to item 23, wherein the traffic information is transmitted to the steps (a) and (b) on the additional channel, and forward and reverse control channels have a lower error rate than the additional channel.

25. The method according to item 21, wherein the received power value transmitted from the mobile station to the base station using a Protocol with a negative acknowledgement.

26. The method according A.25, characterized in that the Protocol with acknowledgement is transmitted between the mobile and base station using forward and reverse control channel.

27. The method according to p, wherein the traffic information is transmitted to the steps (a) and (b) on the additional channel, and forward and reverse control channels have a lower error rate than the additional channel.

28. The method according to claim 19, characterized in that it further includes the steps: (D) summing the traffic information transmitted from the first capacity value of the characters on the stage (A), with information the th traffic transmitted with additional capacity value of the characters on the stage (C), by combining the received power associated with the traffic information transmitted from the first capacity value of the characters on the stage (A), with the accepted power associated with the traffic information transmitted from the additional capacity value of the characters on the stage (In), in the buffer in the mobile station, and (E) demodulation information of the mobile station in accordance with the result of step (D).

29. Device for transmitting traffic information from the base transceiver station to the mobile station in a mobile radiotelephone system having a base station controller, which handles many transponders, which transmit data traffic to multiple mobile stations, comprising: (A) the distribution unit power controller base station that selects the first value of the power of symbols for transmission of data traffic from the base transceiver station to the mobile station, with the first value of the power of symbols is not sufficient for correct demodulation of the data traffic of the mobile station, and the distribution unit power selects additional capacity value of the character to re-transmit the traffic information from the base station transceiver to the mobile station, and more in the guise of a power of symbols is also not sufficient in itself for correct demodulation of the data traffic of the mobile station; (B) the transmitter of the base station, which initially transmits the traffic information from the base transceiver station to the mobile station with the first value of the power of symbols, and then transmits the traffic information from the base transceiver station to the mobile station with an additional amount of power of symbols.

30. Device for transmitting traffic information from the base station to the mobile station in a mobile radiotelephone system having a base station that transmits data traffic to multiple mobile stations, comprising: (A) the distribution unit power at the base station, which selects the first value of the power of symbols for transmission of data traffic from the base station to the mobile station, with the first value of the power of symbols is not sufficient for correct demodulation of the data traffic of the mobile station, and the distribution unit power selects additional capacity value of the character to re-transmit the traffic information from the base station to the mobile station, and an additional amount of power characters not sufficient in itself for correct demodulation of the data traffic of the mobile station; (B) the transmitter of the base station, which initially transmits the traffic information from the base station to the mobile station with the first values of the th power of symbols, and then transmits the traffic information from the base station to the mobile station with an additional amount of power of symbols.

31. Device for transmitting traffic information from the base station to the mobile station in a mobile radiotelephone system having a base station and multiple mobile stations, containing (A) a means for intentional transmission of data traffic from the base station with the first value of the power of symbols, which is not sufficient for correct demodulation of the data traffic of the mobile station; (C) means for re-transmitting the data traffic with the additional amount of power symbol, which is also not sufficient in itself for correct demodulation of the data traffic of the mobile station.



 

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EFFECT: reduced excess transmission power and noise, enhanced forward throughput of system.

42 cl, 10 dwg

FIELD: radar engineering and cellular communication systems for locating mobile stations.

SUBSTANCE: proposed method is distinguished from prior art in saving satellite measurement results incorporating abnormal errors and reducing weight of these erroneous measurements followed by repeated searching for subscriber's mobile station location using corrected weighting coefficient. This operation is executed until sum of weighed error measures corresponding to corrected location of subscriber's mobile station using refined weighting coefficients reduces below threshold value. Corrected estimate of subscriber's mobile station location obtained in this way is assumed as final estimate of subscriber's mobile station location.

EFFECT: enhanced precision and reliability of locating subscriber's mobile station.

3 cl, 5 dwg

FIELD: radio engineering.

SUBSTANCE: proposed method used for detecting mutual time mismatch of base stations in cellular radio communication systems, for instance in cellular radio communication systems of third generation, to detect location of mobile user includes joint statistical processing of all qualified time mismatch signals of base stations so as to determine mutual time mismatch of signals coming from any pair of base stations of radio communication system.

EFFECT: enhanced precision.

4 cl, 13 dwg

FIELD: radio engineering.

SUBSTANCE: method involves arranging base stations supplying services to objects belonging to given region in pentagon vertices. Its two non-adjacent angles are equal to 90° and vertex with an angle of 132° is between them. The other angles are equal to 114°. Communication zones cover territory under service without gaps. Their base stations have circular pattern and two radii of communication zones r and R related to each other as r=0.575R. The stations having lesser serviceability radius form a square which side is equal to 1.827l.

EFFECT: reduced service zone overlay degree; coverage of uneven and convex earth surface types.

3 dwg

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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