Improved performance of mobile cellular systems

 

(57) Abstract:

Characteristics of mobile systems is improved by determining whether the mobile device-specific ability, and control the operation of the base station to improve system performance in response to determining that the mobile device has referred to a specific opportunity that can be characterized by the reception signal with a lower requirement for the signal-to-noise ratio (s/t). In this case, the system performance can be improved by adjusting power transmitting device of the base station at a lower power range in response to determining that the mobile device has a specific characteristic, thereby creating less interference mobile devices that require a higher ratio of C/N, and increasing system capacity, what is the technical result. 7 C. and 6 C.p. f-crystals, 4 Il.

The invention relates to systems in the mobile-cellular telephone, and more particularly to methods and devices designed to ensure the use of various designs of subscriber telephone sets with regard to compromise requirements e is t to maintain the maximum number of communication at the same time is the goal for services providing this type of service because it directly leads to an increase in income. At the same time, telephones cellular patterns are consumer products, low cost which is crucial to retail distributors. You can create systems and telephones, which can increase throughput by increasing retail prices. You can also reduce the cost of such equipment price reduction in throughput. This conflict could be adjusted, if the service that provides this type of service has offered a grant in the retail sale of handsets, the use of which they seek to promote on the basis of providing the necessary bandwidth. However, the disadvantage of this approach is to limit the freedom of an independent competition in terms of equipment and maintenance, because the consumer may not be allowed to buy a phone with a maximum subsidy from the first seller and then transfer the payment to the second owner, having a lower fee and a charge for the calls, because he does not offer such subsidies,

One of the other commercial service but only some disadvantages for the retail consumer, is the use of the method of diversity reception. It can be shown that the provision of two separate receiving channels and antennas in a mobile telephone apparatus can reduce the signal to mutual interference (C/P), necessary for high-quality connection, by up to 7 dB. As the number of re-uses radio frequency channel for private communication in a given geographical area is directly related to the required ratio C/N, the bandwidth of the telephone network may be approximately doubled due to the use of mobile phones capable of posted receive.

Because not all mobile subscribers can expect to purchase more expensive vehicles, it is desirable to provide the possibility of adopting mobile phones as with the above improvements and corresponding restrictions reuse frequency in the same geographic area, and without them. In addition, it is desirable to create for retail consumers an incentive to purchase more sophisticated products, as it will provide in a mobile communication system polysia above problems are solved by the method and the device, intended for a base station in a cellular communication system comprising a base station and a mobile unit. First, determine whether the movable block specific opportunities. Then work the base station is controlled to improve the efficiency of the system, taking into account the fact that the movable block has a specific technical capabilities.

In accordance with one embodiment of the invention the identification of the specific features of the rolling unit includes a reception signal from the moving block, and the signal is encoded to contain information about the specific technical capabilities of the rolling block.

Alternatively, the identification of specific features of the rolling unit may include a signal identification from rolling block, and the signal identification coded to identify which one of the many mobile units adopted this signal identification; and then use the signal identification for searching in the database code that identifies the specific technical characteristics of the rolling block.

In another aspect of the invention mentioned concrete is et to be achieved through receive diversity. In addition, the operation control base station includes configuring the power transmission device of a base station in a lower power range in response to determining that the movable block has a specific ability. This reduces interference for cheap mobile units requiring higher ratio of C/N, and increases system throughput.

In another aspect of the invention the operation of the base station includes the lower of the two rates billing billing rolling block in response to determining that the movable block has a specific technical feature. This reflects the fact that highly mobile units accounts for a smaller portion of the bandwidth of the network connections, and stimulates retail consumers to purchase high-efficiency devices.

Objectives and advantages of the invention will be understood from the following detailed description, illustrated by the drawings, which represent the following:

Fig. 1 is a block diagram of a cell of a cell in a mobile communication system having a base station operating in accordance with the present invention;

Fig. 2 - is possible;

Fig. 3 is a block diagram illustrating operation of a base station in accordance with an alternative embodiment of the invention;

Fig. 4 is a block diagram corresponding to one of the aspects of the invention system, designed for different tariff billing, depending on the technical characteristics of the equipment used.

More effective than previously used, the method of allocation of radio frequency channels networks with a fixed frequency distribution described in co-filed patent application U.S. N 08/245 031 dated may 17, 1994 in the name of Andersen and others on "Method and device for use in a communication system", is shown here for reference. Another effective method of allocation of radio frequency channels, different from the existing schemes of their distribution, are described in co-filed patent application U.S. N 08/207 032 dated March 7, 1994 in the name of J. Haartsen on "Method and system for allocating channels using power control and measurements in the transmission of communications using mobile devices", which is owned by the same assignee as the present patent application and which is incorporated here as a reference. Others with the materials described in the application for U.S. patent N 08/288 255 in the name of D & dent "System and method for allocating time and frequency intervals from 1 September 1994, which is also owned by the assignee of the present patent application. This method provides a continuous assessment of the potential characteristics of all available channels at the base station and assigns the best channel for each communication session with a mobile subscriber. How adaptive distribution channels disclosed in the aforementioned applications, provide an opportunity to predict the characteristics of the channels in both directions of communication from the base station to the moving object from the moving object to a base station and to take them into account when assigning a channel.

In accordance with one aspect of the present invention a method of adaptive distribution channels mutated in such a way as to take into account the mobile subscriber units in the system have different requirements for the signal to mutual interference (C/P). That is, the specific relationship With s/P that the system seeks to achieve, vary depending on the specific capabilities of each rolling unit. Along with this change of the function value, assigning penalties for failure to achieve target relationship/P. Now it will be described with reference to Fig. 1, which illustrates a cell 100 in the mobile communication system. Cell 100 including the about 120 high performance, and mobile device 130 with low performance are served by base station 110 while each of them is within the cell 100. Mobile device 120 with high performance has lower requirements with respect To/P, resulting, for example, using the method of diversity reception. In a mobile device 130 with low characteristics not used this method, so there are higher requirements for the ratio C/N than the requirements of mobile device 120 with high performance.

As explained above, in order to increase throughput to the base station, it is advantageous to use the advantage of better performance of mobile device 120 with high performance. Thus, in accordance with one aspect of the present invention, the base station 110 communicates with each mobile device 120 and 130 with high and low characteristics in accordance with the flowchart illustrated in Fig. 2. At a high level, the base station 110 is illustrated generalized blocks, which is shown in Fig. 2 by dashed lines. In block 210, the base station 110 determines the capabilities of mobile devices, which is samymi opportunities.

A more detailed example of the operation of the Central station, respectively the present invention, is illustrated in Fig. 2, the blocks shown in solid lines. As shown in Fig. 2, is determined by the availability requirements of increased relations With/P, as mentioned above. Thus, the base station 110 starts (block 215) receive the code that identifies the requirement for the ratio C/P from any of the mobile devices 120, 130, with which it communicates. Such a code indicating the requirement for the ratio C/P, can directly contain the required information. For example, you can enter a Protocol by which the mobile devices 120, 130 meet the 2-bit codes, encoded as follows:

Code - Valid with respect TO s/P

00 - 6 dB

01 - 12 dB

10 - 18 dB

11 - 24 dB

The above coding allows to determine the required relationship With/P directly using equation

The desired ratio C/N=6 (Code + 1) dB

When the above-mentioned encoding code 00 may correspond to the mode of transmission of the data packet with diversity or without him. Code 01 may correspond to a mobile telephone, which is equipped with an antenna and receiver is th mobile radio service, mobile telephone with taking no explode. Code 11 may correspond to user-selected especially free channel (channel with high fidelity), for which he is willing to pay. (Such a channel may be desirable, for example, for international calls).

If it is desirable to create a system that does not affect the design itself of mobile devices, as an alternative of mobile devices 120, 130, explicitly sending code, which inhibits the requirement for the ratio C/P, such a code received from a mobile device, can be its own telephone number of the mobile device or electronic serial number. Such information is usually passed between the mobile device and the base station in the known systems, and its encoding and transmission method well-known to specialists in this field of technology. In this case, the base station 110 uses the received telephone number or electronic serial number to access a database that resides in the source automatic telephone stations (ATS) of the subscriber, and finds in it a code indicating the desired ratio C/P.

Next on the block is e/P. If the code indicates that the base station 110 is associated with a mobile device 130 having a low characteristic, that takes you to a block 240, according to which the base station 110 regulates the capacity of its transmitting device so that she was within the range, referred to here as "normal".

Alternatively, if the code indicates that the base station 110 is associated with a mobile device 120 having high characteristics, the transition from block 200 to block 250, according to which base article reduces the capacity of its transmitting device to a low range that is lower than the "normal" range. This allows the station 110 still meet the requirements With respect LTO mobile device 120 high performance, at the same time providing less interference to mobile device 130 with low characteristics, which require a higher ratio C/P.

As mentioned above, the base station 110 may additionally adapt the capacity of its transmitting device within alternative "normal" and low range, in accordance with such factors as the distance of the mobile station from basicrate in the above-mentioned patent application U.S. N 08/207 032, which is incorporated herein by reference.

Alternatively described with reference to Fig. 2 the method of Fig. 3 shows a variant, which is in all respects identical to that shown in Fig. 2, except for the method of operation of a base station 110, which is regulated in accordance with certain technical capabilities of mobile devices. In this alternative embodiment, instead of regulating the power level of the signal used to communicate with a mobile device, selects a channel to be used by a mobile device, depending on its capabilities. Since the base station 110 may assign any of a number of different channels (frequencies) to use a mobile device, reducing interference and increase system throughput can be achieved by assigning mobile devices 120 high performance frequency, characterized by a smaller reuse distance (i.e., a smaller distance from the base station 110 and the nearest other base station, which can also assign the same frequency to use a mobile device), compared with other cha is more similar characteristics re-use of system resources, inevitably must transmit at lower power levels than other channels to avoid interference from neighboring cells.

Thus, if taken at stage 330, the code that specifies the requirements for the ratio C/P, shows that the base station 110 is associated with a mobile device 130 with a low performance, then switch to the block 340, in this case, the base station assigns a channel that is re-used at a higher spatial separation (i.e. at a greater distance reuse, so that the power transmitting device for this channel lies in the "normal" range) than for other assigned channels. If, on the other hand, adopt a code that indicates the requirement for the ratio C/P, shows that the base station 110 communicates with mobile device 120 having high characteristics, then, according to block 350, the base station 110 allocates the channel, which is re-used on a smaller reuse distance (i.e. assigned a channel having a smaller reuse distance). This allows the base station 110 is still to meet the requirements of mobile device 120 high x is greater reuse frequency.

In accordance with another aspect of the invention, the base station 110 uses the knowledge requirements for the ratio C/P of the mobile station to determine the tariff billing on radioperegovory subscriber, as measured, for example, in cents per minute. That is, after adjusting power transmitting device to the level of "normal" range (block 240) base station 110 then carry out the treatment according to block 245 where communication establishes a higher rate billing. Similarly, after adjusting power transmitting device to the level of the low range (block 250), the base station 110 then performs processing according to the block 255, for communication is set lower rate billing. This discrepancy in the rates billing reflects the fact that the mobile device 120 high performance accounts for a smaller portion of the network bandwidth. Based on the fact that these savings will go to the subscriber, any retail buyer waiting less time on phone calls, will tend to purchase more expensive mobile device 120 with high performance. As explained by viceisthename provides the possibility of increasing the system capacity.

In Fig. 4 shows an example of executing mobile systems using different rates billing, subject to certain technical capabilities of subscribers. For the purpose of illustration is shown one mobile device 400 with low performance and one movable device 410 high performance. However, it is clear that this system can work with a large number of mobile devices of each type. Radio communication between the mobile devices 400, 410 and the system is performed via the antenna 420, connected to the base station 430. The base station 430 is connected to the switching center 440 mobile telephone stations. In accordance with the present invention, the switching center 440 mobile device includes an automatic subsystem billing 441, which is performed using the operations illustrated any of the flowchart shown in Fig. 2 and 3. Alternatively, automatic subsystem billing 441 instead, you can include in the logger location temporarily (not shown). In any case, automatic subsystem billing 441 may be a mainframe computer, programmed to perform the described not described here.

As more fully described above, each of the mobile devices 400, 410 sends a signal, which indicates whether it is to the device with low or high performance. This information is transmitted from the antenna 420 to the Central station 430. Central station 430 uses this information for decision: whether to use a low rate billing ("list of tariffs And billing") (for the mobile device, which is movable device 410 high performance) or you should use instead the high rate billing ("list of tariffs In billing") (for the mobile device, which is movable device 400 with low performance). Then the code that defines the selected list of tariff billing is transmitted from the base station 430 to automatically subsystem 441 billing in the switching center 440 mobile devices.

Receiving a code list tariff billing allows automatic subsystem 441 billing to charge the call, depending on your capabilities, and also the amount of time to use these features.

At the end of the challenge code, the Registrar of the original location (not shown), the corresponding mobile device on which invoice is issued. This transfer can be accomplished using well-known signaling system # 7 or protocols IS41.

The invention is described with reference to a specific variant of implementation. However, specialists in the art it should be clear that the invention can be used in concrete forms, different from the above-described preferred embodiments, without departing from the invention.

For example, described an implementation option takes advantage arising from the definition of requirements ratio C/P of the rolling device and the corresponding regulation of the power transmission device. However, the present invention is applicable to any situation where some of the mobile devices may have improved properties that increase the effectiveness of the system. In any such example, the present invention allows to determine whether a particular mobile device with improved properties, and then modify the system in such a way as to benefit from the use of the improved properties when they are identified. In addition, the present invention psocoptera to buy a more expensive device with improved properties.

Thus, the preferred embodiment of the invention is illustrative only and should not be construed as limitations. Scope of the invention defined by the claims and not the preceding description, and all modifications and equivalents of the features in the claims should be regarded as being in the scope of the invention.

1. The method of controlling base station in the cellular system containing a base station and a mobile device, comprising the steps of: determining whether the mobile device is a concrete opportunity to receive signals with lower signal-to-noise ratio, the operation of the base station to improve system performance in response to determining that the mobile device has a specific ability, and improving the characteristics of the system include reduction of spectral resources in the cellular system.

2. The method according to p. 1, wherein the step of determining includes the reception signal from the mobile device, and the signal is encoded to indicate whether the mobile station-specific characteristic.

3. The method according to p. 1, characterized in that the phase predetermin so, to identify a particular mobile device from a variety of mobile devices, which adopted the identifying signal and use the signal to the identification code search in the database pointing to a specific characteristic.

4. The method of controlling base station in the cellular system containing a base station and a mobile device, comprising the steps of: determining whether the mobile device is a concrete opportunity for the reception of signals with lower signal-to-noise ratio, the operation of the base station to improve system performance in response to determining that the mobile device has a specific feature, and the operation of the base station includes configuring a power transmitting device of the base station at a reduced power range in response to determining that the mobile device has a specific ability.

5. The method of controlling base station in the cellular system containing a base station and a mobile device, comprising the steps of: determining whether the mobile device is a concrete opportunity to receive signals with lower signal-to-noise ratio, vignae device has a specific feature, when the base station uses a lot of assigned frequencies, with each assigned frequency is the parameter reuse, which indicates the proximity of reuse with respect to the nearest other base station, which also uses the assigned frequency, the operation of the base station includes the purpose for the use of a movable device of the selected one of the assigned frequencies, which has the option of re-use, indicating a greater closeness reuse than proximity to reuse any of the assigned frequencies.

6. The method of controlling base station in the cellular system containing a base station and a mobile device, comprising the steps of: determining whether the mobile device is a concrete opportunity to receive signals with lower signal-to-noise ratio, the operation of the base station to improve performance in response to determining that the mobile device has a specific feature, it is the operation of the base station includes in response to determining that the mobile device has a specific origination account for the automatic charging of the payment of the call, made by a mobile device or a call to the mobile device.

7. Device to control the operation of the base station in the cellular system containing a base station and mobile device containing means for determining whether the mobile device is a concrete opportunity to receive signals with lower signal-to-noise ratio, the control operation of the base station to improve system performance in response to determining that the mobile device has a specific ability, while improving system performance includes the reduction of spectral resources in the cellular system.

8. The device according to p. 7, characterized in that the means for determining includes means receiving the signal from the mobile device, and the signal is encoded to indicate whether the mobile station-specific characteristic.

9. The device according to p. 7, characterized in that the means for determining includes means signal identification from the mobile device, and signal identification coded to identify a particular mobile device from a variety of mobile devices, which adopted Iomega specific characteristic.

10. The device control operation of the base station in the cellular system containing a base station and mobile device containing means for determining whether the mobile device is a concrete opportunity to receive signals with low signal-to-noise ratio, the control operation of the base station to improve system performance in response to determining that the mobile device has a specific opportunity, and the means to control the operation of the base station contains means tinctures power transmitting device of the base station at a reduced power range in response to determining that the mobile device has a specific ability.

11. The device control operation of the base station in the cellular system containing a base station and mobile device containing means for determining whether the mobile device is a concrete opportunity to receive signals with lower signal-to-noise ratio, the control operation of the base station to improve system performance in response to determining that the mobile device has a specific feature, the tool control base mobile device in response to determining what mobile device has a specific ability.

12. The method according to p. 1, characterized in that the specific ability to receive signals with lower signal-to-noise ratio due to the fact that the mobile device uses the posted receive.

13. The device according to p. 7, characterized in that the specific ability to receive signals with lower signal-to-noise ratio due to the fact that the mobile device has the facility receive diversity.

 

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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.

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1 cl, 7 dwg, 1 tbl

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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.

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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.

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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.

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

2 cl, 7 dwg, 1 tbl

FIELD: radio communications.

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

1 cl, 2 dwg

FIELD: radiophone groups servicing distant subscribers.

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EFFECT: enhanced quality of voice information.

12 cl, 11 dwg

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