KR100356632B1 - Path connection control system and control method thereof in cdma mobile communication system - Google Patents

Abstract

The path connection control system in the CDMA mobile communication system can establish a minimum enough path even during high-speed movement without degrading the communication quality due to the delay of the handoff control. The path access control system in the CDMA mobile communication system determines, by the base station control apparatus, a wireless base station for establishing a path for communication with the mobile terminal. The base station controller includes means for repeatedly inputting the position information of the mobile terminal, means for calculating the current position, the moving speed and the moving direction of the mobile terminal based on the repeatedly inputted position information of the mobile terminal; It includes a required route number map which determines the required route number based on the topographic map. The base station control apparatus takes the information of the current position, the moving speed and the moving direction of the mobile terminal, and the information from the required route number map to calculate a necessary route and to determine a wireless base station to establish a route.

Description

PATH CONNECTION CONTROL SYSTEM AND CONTROL METHOD THEREOF IN CDMA MOBILE COMMUNICATION SYSTEM}

The present invention relates to a path access control system and a control method thereof in a code division multiple access (CDMA) mobile communication system.

A mobile communication in which a base station control device is connected to a mobile communication switching center by a wired line, a plurality of wireless base stations are connected to a base station control device by a wired line, and each base station is connected by a wireless line with a plurality of mobile terminals entering a service area of the own station. The system is well known.

As a method of multiplexing a wireless communication path in a mobile communication system, in addition to frequency division multiple access (FDMA) or time division multiple access (TDMA), information bits to be communicated are spread by spectrum spread using a spreading code pattern of several tens to thousands of bits. Code division multiple access (CDMA) for multiplexing is known.

The CDMA scheme is advantageous against narrowband interference and can accommodate a plurality of paths within the same carrier. Background Art In the current general CDMA mobile communication system, even in a call on one radio channel, a path connection system for establishing a multipath for a plurality of radio base stations in accordance with a communication state is adopted. However, because CDMA uses a low power band over a wide band, when the number of paths exceeds a certain number, wireless signals arriving through this relatively large number of paths become noisy. Therefore, in the CDMA mobile communication system, it is particularly important to control the connection of the path according to the communication environment.

Fig. 8 is a diagram for explaining path connection control of this type of conventional CDMA mobile communication system.

In Fig. 8, reference numeral 50 is a mobile terminal (MS), reference numerals 51 to 53 are radio base stations (BTS), reference numeral 54 is a base station control apparatus (BSC), and reference numeral 58 Is a mobile communication switching center (MSC).

On the other hand, in the base station control apparatus 54, reference numeral 55 is an electric field strength data extraction unit for extracting data of electric field strength, and reference numeral 56 monitors electric field strength levels of each wireless base station according to the electric field strength data. An electric field strength level monitoring unit, reference numeral 57 is a path setting control unit that determines a path to be connected and a path to be blocked based on the information from the electric field strength level monitoring unit 56.

Next, path connection control of the CDMA mobile communication system shown in FIG. 8 will be described.

At the time of the call from the mobile terminal 50, the mobile terminal 50 measures the received electric field strength of the pilot pattern transmitted from each of the wireless base stations 51 to 53 and makes a call connection to the wireless base station having the highest electric field strength. .

Here, assuming that the wireless base station having the highest electric field strength is the wireless base station 52, the mobile terminal 50 first establishes a path to the wireless base station 52.

Even after performing the path establishment with the radio base station 52, the mobile terminal 50 continuously measures the received electric field strength of the pilot pattern to construct the electric field strength information of each radio base station measured with the radio base station 52. Reports sequentially to the base station control apparatus 54 via the established path.

In the base station controller 54, electric field strength level monitoring by extracting data related to electric field strength of each wireless base station from the signal input from the wireless base station 52 and supplying the extracted data to the electric field strength level monitoring unit 56 In section 56, the electric field strength level of each wireless base station is monitored.

In the handoff control during movement, when a new wireless base station having a field strength level exceeding a threshold value for establishing a path appears, a new path is established in the newly appeared wireless base station. On the contrary, when the field strength level of the wireless base station in which the path has already been established is lower than the threshold value that becomes the reference, the path to the wireless base station is blocked.

That is, in the handoff control in the conventional CDMA mobile communication system, path connection control is performed in accordance with the actual field strength level of each radio base station reported from the mobile terminal.

In the above-described path access control system in the conventional CDMA mobile communication system, since the path access control is performed according to the actual electric field strength level of each radio base station reported from the mobile terminal, the following problems are encountered.

First, in order to reset the path according to the height of the actual electric field strength level, when the mobile terminal is moving at high speed, handoff control is delayed and communication quality deteriorates until handoff control is terminated.

Second, since the paths are uniformly established for the wireless base stations having the electric field strength level above a certain level, the original paths are also established for the wireless base stations passing momentarily. On the other hand, in order to adapt to sudden changes in the communication environment, it is always necessary to establish a plurality of paths, resulting in waste of communication resources.

In Japanese Unexamined Patent Application Publication No. 7-322336, "Hand-Off System for Cellular Telephone System", as shown in Figs. 9, 10A and 10B, shows the current position of the mobile terminal and the mobile terminal 50. A position detector 518 is provided for detecting the direction of movement, and in the control station 502, a map data storage unit 522, a position detector 518 for storing map data covering all cell areas of the cellular phone system. The mobile terminal position information storage unit 521 and the mobile terminal movement direction determination unit 523 for storing the position information and the movement direction information detected by the "

The mobile terminal moving direction determination unit 523, when the wireless base station in the cell area where the mobile terminal actually exists is notified of the deterioration of the electric field strength associated with the movement of the mobile terminal, maps based on the location information and the moving direction information. By reference, the cell area to which the mobile terminal moves is detected.

The system disclosed in the above publication has a radio base station map, and after narrowing the range of radio base stations to be handed off based on the moving direction of the mobile terminal, handoff is executed to efficiently use some communication resources. However, even in this technique, the problem of delay of handoff control during high-speed movement cannot be solved and the efficient use of communication resources cannot be satisfied.

The present invention has been devised in consideration of the above-mentioned drawbacks of the prior art. Accordingly, an object of the present invention is to provide a path access control system and a method of controlling the same in a CDMA mobile communication system capable of establishing a minimum sufficient path without causing degradation of communication quality due to delay of handoff control even during high-speed movement. It is.

According to a first aspect of the present invention, a path access control system in a CDMA mobile communication system for determining, by a base station control apparatus, a wireless base station for establishing a path for communication with a mobile terminal, the base station control apparatus includes:

Means for repeatedly inputting location information of the mobile terminal;

Means for calculating a current position, a moving speed, and a moving direction of the mobile terminal based on the repeatedly inputted position information of the mobile terminal; And

Includes a required number of route maps, which determine the number of required routes based on the topographic map,

The base station controller performs control to take the information from the current position, the moving speed and the moving direction of the mobile terminal, and the information from the required number of route maps, calculate the required route, and determine a wireless base station to establish the route. A path access control system in a CDMA mobile communication system is provided.

According to a second aspect of the present invention, a path access control system in a CDMA mobile communication system for determining, by a base station control apparatus, a wireless base station for establishing a path for communication with a mobile terminal, the base station control device includes:

Means for repeatedly inputting location information of the mobile terminal;

Means for calculating the current position, the moving speed, and the moving direction of the mobile terminal based on the repeatedly inputted position information of the mobile terminal, and at the same time predicting the near future position, the moving speed, and the moving direction of the mobile terminal. ; And

Includes a map of the required number of routes, which determines the number of required routes based on the topographic map,

The base station controller includes information on a current position, a moving speed, and a moving direction of the mobile terminal, prediction information on a near future position, a moving speed, and a moving direction of the mobile terminal, and information from the required number of route maps. There is provided a path access control system in a CDMA mobile communication system which takes the control to calculate the required path in the near future and performs control to determine the wireless base station to establish the path.

According to a third aspect of the present invention, there is provided a path access control method in a CDMA mobile communication system in which a base station controller determines a wireless base station for establishing a path for communication with a mobile terminal.

A first step of repeatedly inputting location information of the mobile terminal;

Calculating a current position, a moving speed, and a moving direction of the mobile terminal based on repeatedly inputted position information of the mobile terminal; And

Providing a required number of route maps in which the number of required routes is determined in advance based on a topographic map, taking information from the current position, moving speed and direction of the mobile terminal, and information from the required number of route maps, and calculating necessary routes; There is provided a path connection control method in a CDMA mobile communication system comprising a third step of determining a wireless base station to establish a path.

According to a fourth aspect of the present invention, there is provided a path access control method in a CDMA mobile communication system in which a base station controller determines a wireless base station for establishing a path for communication with a mobile terminal.

A first step of repeatedly inputting location information of the mobile terminal;

A second step of calculating a current position, a moving speed, and a moving direction of the mobile terminal based on repeatedly inputted position information of the mobile terminal, and predicting a near future position, moving speed, and moving direction of the mobile terminal; ; And

Providing a required number of route maps, the number of required routes being determined in advance based on a topographical map, the current position of the mobile terminal, information of a moving speed and a moving direction, a near future position of the mobile terminal, and prediction information of a moving speed and a moving direction And a third step of taking the information from the required route number map to calculate a closer necessary route, and determining a wireless base station to establish a route.

Preferably, the required route number map may be a required route number map based on the predicted moving speed of the mobile terminal based on the topographic map. Alternatively, the required route number map may be a required route number map based on the predicted moving direction change rate of the mobile terminal based on the topographic map. Alternatively, the required route number map may be a required route number map based on the predicted rate of change of the mobile terminal based on the topographic map. Alternatively, the required route number map may include a necessary route number map based on the predicted movement speed of the mobile terminal based on the topographic map, a required route number map based on the predicted movement direction change rate, and a need based on the predicted movement speed change rate. It may be a route number map.

1 is a block diagram showing a system configuration for explaining a path access control system in a CDMA mobile communication system according to the present invention;

FIG. 2 is a diagram showing a detailed configuration of the moving state analyzer shown in FIG. 1. FIG.

3A and 3B are diagrams showing examples of required route number maps.

4A and 4B are diagrams showing examples of required route number maps.

5 is a flowchart for explaining the operation shown in the embodiment.

6 is a flowchart for explaining the operation shown in the embodiment.

7 is a block diagram showing an example of the configuration of a mobile terminal used in the embodiment.

8 is a diagram illustrating an example of a path connection control system in a conventional CDMA mobile communication system.

9 illustrates a prior art.

10A and 10B illustrate the prior art;

<Explanation of symbols for the main parts of the drawings>

10: mobile terminal

11, 12, 13: wireless base station

14: base station controller

15: location data extraction unit

16: moving state analysis unit

17: path setting control unit

18: field strength data extraction unit

19: timer

The present invention will be more fully understood from the detailed description given below and the accompanying drawings of the preferred embodiments of the present invention, but the above embodiments and drawings are merely for explanation and understanding and should not be understood as limiting the present invention. Hereinafter, with reference to the accompanying drawings, the present invention will be described in detail by the preferred embodiment of the present invention. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. However, it will be apparent to one skilled in the art that the present invention may be practiced without these specific details. In other instances, well-known configurations are not shown in detail in order to not unnecessarily obscure the present invention.

First, the path connection control system in the CDMA mobile communication system according to the present invention is designed to establish a minimum sufficient path.

For this purpose,

(Iv) For example, if a mobile station is stationary in a good communication environment, if at least one stable path is established and a sudden change in the path stability is not expected, other previously established paths may be blocked. There is a need.

(Ii) When the mobile terminal is moving in a place having a good communication environment and the probability of changing the moving direction is high, a stable path is established, but when the stability of the path is expected to change abruptly, It is necessary to establish multiple paths for sudden change.

(Iii) When a call is made from a vehicle moving on a highway, when the mobile terminal is moving at a high speed in the direction of movement expected in advance, it is necessary to skip a route established only for a short period.

On the other hand, the path connection control system in the CDMA mobile communication system according to the present invention is designed to perform control for preventing the delay of the handoff control during the high speed movement.

For this purpose, it is necessary to anticipate a future communication environment and to initiate handoff control when in high-speed movement, before predicting the current field strength level.

Accordingly, there is a need to provide a means for predicting the near future state transition of a mobile terminal.

For this purpose, in the path access control system in the CDMA mobile communication system according to the present invention, the base station control apparatus uses a predetermined number of required path maps (for example, based on the moving speed based on the topographical map) according to the point state. A required number of route maps, a required number of route maps based on the rate of change of movement direction, a required number of route maps based on the rate of change rate of speed, etc.), and the current position, movement direction, speed of movement, rate of change of movement direction, Calculate one or all of the moving speed change rate, the position, the moving speed, the moving direction change rate, and the speed change rate of the mobile terminal in the near future, and add them to the wireless base station position data and the wireless base station field strength data, and these are required parameters as the number of paths. The map is searched to calculate the necessary route, and the connection control of the route is performed.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.

In Fig. 1, reference numeral 1a is a mobile communication switching center (MSC), reference numeral 10 is a mobile terminal (MS), reference numerals 11, 12, and 13 are radio base stations (BTSs), respectively. Reference numeral 14 is a base station control device (BSC).

On the other hand, in the base station controller 14, reference numeral 15 is a position data extracting unit, reference numeral 16 is a moving state analyzer, reference numeral 17 is a route setting controller, and reference numeral 18 is an electric field. The intensity data extraction section, reference numeral 19, is a timer.

It should be noted that the broken line between the mobile terminal 10 and each of the wireless base stations 11, 12, and 13 is a wireless zone. There is a fixed-line zone between each radio base station and the base station control device 14 and between the base station control device 14 and the mobile communication switching center 1a.

The position data extracting unit 15 performs an operation of extracting the position data of the mobile terminal 10 reported from the mobile terminal 10 from the signals input from the base station controller 14.

On the other hand, the electric field strength data extracting unit 18 performs an operation of extracting electric field strength data of each base station reported from the mobile terminal 10 from the signals input to the base station control device 14.

Also, from the timer, the time at which the position data is extracted is input.

In the moving state analyzer 16, the position data of the mobile terminal from the position data extracting unit 15, the field strength data of each base station from the field strength data extracting unit 18, and the time from the timer 19 As appropriate, it is entered and updated.

On the other hand, the movement state analyzer 16 is provided with various map information and radio base station position information described later. Using this data as a parameter, an operation for predicting the near future state transition of the mobile station and controlling the path setting control unit 17 is performed.

FIG. 2 is a diagram illustrating a detailed configuration of the moving state analyzing unit 16 shown in FIG. 1. In the following description, the same reference numerals will be given to parts similar to those of FIG. 1, and common parts will be omitted for the sake of clear understanding of the present invention.

The movement state analyzer 16 is provided with various map data 27a, mobile terminal position data 27b, wireless base station position data 27c, and wireless base station electric field strength data 27d. Using the mobile terminal position data 27b, the moving speed and direction 27g of the mobile terminal are calculated, and the next position measurement timing 27e and the route setting change request 27f are outputted as parameters.

Here, the map data 27a and the radio base station position data 27c are data related to a cell under the control of the base station controller 14, and are fixed data provided beforehand regardless of the state of the mobile terminal.

An to Dn of the map data 27a are data on various maps, where An is location data of a mobile terminal on a topographic map, in which buildings, stations, roads, tracks, etc. are shown in detail, and Bn is expected from the topographic map A. Data on the required number of route maps based on the estimated movement speed, Cn is data on the required number of route maps based on the expected rate of change of movement direction from the topographic map A, and Dn is based on the rate of expected speed change from the topographic map A. This is the data on the required route number map.

On the other hand, in the radio station position data 27c, Hn denotes the position of the radio base station, In denotes an area required to set a path having a normal electric field strength of a predetermined level or more, and Jn usually denotes a path of electric field strength of a predetermined level or less. This is the area required to block. (Note that these areas I and J can be set uniformly according to the physical distance from the wireless base station.)

3A, 3B, 4A, and 4B show examples of necessary route number maps. FIG. 3A is a required route number map based on a topographical map, FIG. 3B is a required route number map based on a moving speed, FIG. 4A is a required route number map based on a moving direction change rate, and FIG. 4B is a speed change rate. Map of the number of paths needed. (Note that the numbers " 1 " to " 3 " on each map do not represent the required number of routes, but merely represent a ratio of " 3 "> " 2 " " 1 &quot;.

For example, when there are wide roads, narrow roads, tracks, stations, etc. on the topographical map shown in Fig. 3A, in Fig. 3B, which is a required number of route maps based on the moving speed, the roads are located on the track or in the center of the wide roads. The mobile terminal is expected to move at high speed. Therefore, in this case, the required path number is set to "3". On the other hand, the required number of paths is set to "2" on both sides of the narrow road or the wide road. Further, at the station or other place, the mobile terminal is expected to move at high speed, and the required number of paths is set to "1".

In FIG. 4A, which is the required number of route maps based on the rate of change in the direction of movement, the probability of the direction of change on the road in reverse or reverse is high. Therefore, the required route number is set to "3", and the required route number is set to "2" on both sides of the narrow road or the wide road. The number of required paths is set to "1" on the track or in the middle of the wide road.

In Fig. 4B, which is the required route number map based on the rate of change of velocity, the probability of the change of the moving speed on the road or in the station is expected to be high, so that the required route number is set to " 3 ". On the track, since the probability that the moving speed changes is expected to be about medium, the number of required paths is set to "2". At other places, the number of required paths is set to "1".

In FIG. 3A, which is the required route number map based on the topographical map, only the region 30a to construct the route and the region 30b to block the route are shown.

On the other hand, the mobile terminal position data 27b and the wireless base station electric field strength data 27d in the moving state analyzer 16 of FIG. 2 are transmitted from the base station controller 14 through the wireless base station through which the path is to be established. -1, 10-2) is a data obtained by making a measurement request and storing the measured data as a measurement result.

In the mobile terminal position data 27b, En is a kind of mobile terminal, Fn is a current position of the mobile terminal, Gn is a data reception time, and Kn of the wireless base station electric field strength data 27d is a mobile terminal 10-1. The field strengths for each wireless base station in E are listed, and Ln is the field strengths for each wireless base station in the mobile terminal 10-2.

Next, the operation of the illustrated embodiment will be described with reference to the flowcharts of FIGS. 5 and 6.

When the call is made from the mobile terminal 10, the mobile terminal 10 measures the received electric field strength of the pilot pattern transmitted from each of the wireless base stations 11 to 13, and makes a call connection to the wireless base station having the highest electric field strength. .

Here, assuming a radio base station having the highest electric field strength as the radio base station 12, the mobile terminal 10 first establishes a path with the radio base station 12.

On the other hand, the mobile terminal 10 continuously measures the received electric field strength of the pilot pattern (S1) and transmits the measured electric field strength information of the wireless base station to the base station control device 14 through the path established with the wireless base station 12. Report sequentially (S2).

In the radio base station controller 14, the electric field strength data extracting unit 18 extracts data on the electric field strength of each radio base station from the signals input from the radio base station 12, and extracts the extracted data into a moving state analyzing unit ( 16, and stored as the electric field strength data 27d of each radio base station of the movement state analyzer 16 (S3).

Next, the base station control apparatus 14 requests the position data report to the mobile terminal 10 (S4).

The mobile terminal 10 that has received such a request measures the position of its mobile terminal and reports the position data to the base station controller 14 (S5).

As a method of measuring the position of one's own mobile terminal, a method of obtaining the difference in propagation time difference from three or more radio base stations is common. However, it is also possible to mount a GPS receiver on the mobile terminal 10 and measure the position by GPS.

7 shows an example of the configuration of a mobile terminal 10 equipped with a GPS receiver.

Referring to FIG. 7, the mobile terminal 40 includes a transceiver 400, a vocoder 401, a cell configuration and separation unit 402, an address identification unit 403, a contention detection unit 404, and a contention control unit ( 405, demodulator 406, modulator 407, transmit / receive amplifier 408, communication antenna 409, GPS antenna 410, and GPS receiver 411. Position signals from the GPS satellites are received by the GPS receiver 411 through the GPS antenna 410 to measure the position of the mobile terminal 40 by the GPS receiver 411.

In the base station control apparatus 14, the position data extraction part 15 extracts position data from the signal input from the radio base station 12, and moves to the mobile terminal position data 27b of the movement state analysis part 16. FIG. Store the terminal location data and the received time (S6).

Subsequently, the base station control apparatus 14 requests the mobile station 10 to report the position data again after a predetermined time has elapsed (S7). In response to this, the mobile terminal 10 reports the position data to the base station control apparatus 14 (S8), and the base station control apparatus 14 moves the mobile state analyzer 16 with the time of receiving the mobile terminal position data. It is stored again in (S9).

Then, the moving state analysis unit 16 calculates the moving direction and the moving speed V of the mobile terminal based on the received time difference between the two stored position data and the respective two position data (S10). Further, other expected parameter values (one of the current moving direction change rate and the moving speed change rate of the mobile terminal 10 and the position, the moving direction, the moving speed, the moving direction change rate, and the speed changing rate of the mobile terminal 10 in the near future or All of them, etc.), the next position measurement timing T of the mobile terminal 10 is calculated. In relation to this, a path is established by searching for a wireless base station to establish a path (S11). Then, the next position measurement timing T is waited (S12).

On the other hand, when the state change is caused by the movement of the mobile terminal 10 or other reasons, a path that can be blocked by the values of various parameters is searched (S15). If a path that can be blocked exists (S16), the path of the associated wireless base station is blocked (S17).

On the other hand, in the next step S18, a route that can be constructed by various parameters is searched. If there is a path that can be constructed (S19), the current number of paths is read (S20). If the current number of paths is less than the predetermined maximum number of paths (S21), a path with a related base station is established (S22).

That is, in the path access control system in the CDMA mobile communication system according to the present invention, the position information of the mobile terminal is sequentially input, and the position, the moving speed and the moving direction of the mobile terminal, and the present direction of the moving direction and the speed of the mobile terminal. The change rate is calculated, the near future movement speed, the movement direction change rate, and the movement speed change rate of the mobile terminal are predicted to determine the path to be constructed and blocked by one or all of the parameters to perform path connection control. Therefore, the degradation of the communication quality due to the delay of the handoff control can be prevented and the waste of communication resources due to unnecessary path establishment can also be prevented.

In the path access control system in the CDMA mobile communication system of the present invention, the current movement direction change rate, the movement speed change rate, and the near future position, the movement speed, the movement direction change rate, and the movement speed change rate of the mobile terminal are shown. It calculates by the map previously prepared on the basis, and enables quick correspondence even during high-speed movement.

In the above-described embodiment, three maps are prepared in advance based on the topographical map, that is, a map based on the estimated moving speed, a map based on the expected moving direction change rate, and a map based on the estimated speed changing rate. This is merely an embodiment. Any parameter may be included as a parameter for the path access control.

As described above, the path access control system in the CDMA mobile communication system of the present invention is configured to predict a near future state change of the mobile terminal to determine a base station to establish a path. Therefore, handoff can be performed naturally even during high speed heterogeneity of the mobile terminal, thereby preventing deterioration in communication quality due to delay in handoff control.

On the other hand, an unnecessary path is not established even for a wireless base station having a high field strength. Therefore, the control for maximizing the path establishment can be performed and the communication resources can be utilized efficiently.

Although the present invention has been described by way of example embodiments, those skilled in the art will recognize that various changes, omissions, and additions described above may be made without departing from the spirit and scope of the invention. Therefore, it is to be understood that the present invention is not limited to the above-described specific embodiments but includes all the ranges and equivalents included in the features described in the appended claims.

Claims (20)

A path access control system in a CDMA mobile communication system that determines, by a base station control apparatus, a wireless base station for establishing a path for communication with a mobile terminal, The base station control device, Means for repeatedly inputting location information of the mobile terminal; Means for calculating a current position, a moving speed, and a moving direction of the mobile terminal based on the repeatedly inputted position information of the mobile terminal; And Required number of route maps based on the contour map Including, The base station controller performs control to take the information from the current position, the moving speed and the moving direction of the mobile terminal, and the information from the required number of route maps, calculate the required route, and determine a wireless base station to establish the route. A route access control system in a CDMA mobile communication system, characterized by the above-mentioned. The path access control system of claim 1, wherein the required path number map is a required path number map based on an estimated moving speed of the mobile terminal based on a topographical map. The route access control system of claim 1, wherein the required route number map is a necessary route number map based on an expected rate of change of the mobile terminal based on a topographical map. The path access control system of claim 1, wherein the required path number map is a required path number map based on an expected rate of change of the mobile terminal based on a topographical map. The number of necessary route maps according to claim 1, wherein the necessary route number map is based on a topographical map and a required route number map based on an expected movement speed of the mobile terminal and a rate of change in the expected movement direction of the mobile terminal. And a required number of route maps based on an expected rate of change of the mobile terminal. A path access control system in a CDMA mobile communication system that determines, by a base station control apparatus, a wireless base station for establishing a path for communication with a mobile terminal, The base station control device, Means for repeatedly inputting location information of the mobile terminal; Means for calculating the current position, the moving speed, and the moving direction of the mobile terminal based on the repeatedly inputted position information of the mobile terminal, and at the same time predicting the near future position, the moving speed, and the moving direction of the mobile terminal. ; And Number of required route maps that determine the required number of routes in advance based on the topographic map Including, The base station controller includes information on a current position, a moving speed, and a moving direction of the mobile terminal, estimated information on a near future position, a moving speed, and a moving direction of the mobile terminal, and information from the required number of route maps. Calculating a necessary path in the near future, and performing a control for determining a wireless base station to establish a path, in the CDMA mobile communication system. 7. The path access control system of claim 6, wherein the required path number map is a required path number map based on an estimated moving speed of the mobile terminal based on a topographical map. 7. The path access control system of claim 6, wherein the required path number map is a required path number map based on an expected rate of change of the mobile terminal based on a topographical map. 7. The path access control system of claim 6, wherein the required path number map is a required path number map based on an expected rate of change of the mobile terminal based on a topographical map. The apparatus of claim 6, wherein the required route number map comprises: a required route number map based on an estimated movement speed of the mobile terminal based on a topographic map, a required route number map based on an expected movement direction change rate, and an expected movement A route access control system in a CDMA mobile communication system, characterized in that it is a required route number map based on a rate of change of rate. A path access control method in a CDMA mobile communication system for determining, by a base station controller, a wireless base station for establishing a path for communication with a mobile terminal, A first step of repeatedly inputting location information of the mobile terminal; Calculating a current position, a moving speed, and a moving direction of the mobile terminal based on repeatedly inputted position information of the mobile terminal; And Providing a required number of route maps in which the number of required routes is determined in advance based on a topographic map, taking information from the current position, moving speed and direction of the mobile terminal, and information from the required number of route maps, and calculating necessary routes; Third step of determining wireless base station to establish route Path access control method in a CDMA mobile communication system comprising a. The method of claim 11, wherein the required path number map is a required path number map based on an estimated moving speed of the mobile terminal based on a topographical map. 12. The method of claim 11, wherein the required path number map is a required path number map based on an expected rate of change of the mobile terminal based on a topographical map. 12. The method of claim 11, wherein the required path number map is a required path number map based on an expected rate of change of the mobile terminal based on a topographical map. The apparatus of claim 11, wherein the required route number map comprises: a required route number map based on an estimated movement speed of the mobile terminal based on a topographic map, a required route number map based on an expected movement direction change rate, and an expected movement A path access control method in a CDMA mobile communication system, characterized in that it is a required number of path maps based on a rate of change of speed. A path access control method in a CDMA mobile communication system for determining, by a base station controller, a wireless base station for establishing a path for communication with a mobile terminal, A first step of repeatedly inputting location information of the mobile terminal; A second step of calculating a current position, a moving speed, and a moving direction of the mobile terminal based on repeatedly inputted position information of the mobile terminal, and predicting a near future position, moving speed, and moving direction of the mobile terminal; ; And Providing a required number of route maps, the number of required routes being determined in advance based on a topographical map, the current position of the mobile terminal, information of a moving speed and a moving direction, an estimated position of the near future, a moving speed and a moving direction of the mobile terminal; And a third step of taking the information from the required route number map to calculate a necessary route in the near future and to determine a wireless base station to establish the route. Path access control method in a CDMA mobile communication system comprising a. 17. The method of claim 16, wherein the required path number map is a required path number map based on an estimated moving speed of the mobile terminal based on a topographical map. 17. The method of claim 16, wherein the required path number map is a required path number map based on an expected rate of change of the mobile terminal based on a topographical map. 17. The method of claim 16, wherein the required path number map is a required path number map based on an expected rate of change of the mobile terminal based on a topographical map. The method of claim 16, wherein the required route number map comprises a necessary route number map based on an estimated movement speed of the mobile terminal, a necessary route number map based on an expected movement direction change rate, and an expected movement speed change rate based on a topographical map. A route access control method in a CDMA mobile communication system, characterized in that it is a necessary route number map based.