KR100428860B1 - Method for Resource Allocation for Data Service - Google Patents

Abstract

1. TECHNICAL FIELD OF THE INVENTION

The present invention relates to a data service resource allocation method and a computer readable recording medium having recorded thereon a program for realizing the method.

2. Technical problem to be solved by the invention

The present invention provides a data service resource allocation method capable of variably allocating a required data service capacity by configuring a channel for providing a data service, and a computer-readable recording medium recording a program for realizing the method. To provide.

3. Summary of the Solution of the Invention

The present invention relates to a data service capacity allocation method of a mobile communication system including at least one CPU in charge of data service call processing, wherein upon receiving a data call request from a mobile station, a base station controller analyzes the data call request and sets up a call. A first step of determining whether it is a request or a call release request; A second step of the base station controller confirming a data service capacity required for a call; If the call establishment request is a 144 Kbps / 64 Kbps data service, the base station controller allocates an available packet data service capacity of 2.4 within a maximum available service capacity range; A fourth step of the base station controller allocating an available packet data service capacity of 1 within a maximum available service capacity range if the call establishment request is a 14.4 Kbps / 8Kbps data service; A fifth step of the base station controller releasing the available packet data service capacity of 2.4 allocated according to the 144Kbps / 64Kbps data service capacity when the call release request is a 144Kbps / 64Kbps data service; And a sixth step, when the call release request is a 14.4 Kbps / 8 Kbps data service, the base station controller releasing an available packet data service capacity of 1 allocated according to the 144 Kbps / 64 Kbps data service capacity.

4. Important uses of the invention

The present invention is used for data service resource allocation of a mobile communication system.

Description

{Method for Resource Allocation for Data Service}

The present invention relates to mobile communication systems such as DCS, PCS, IS-2000, and IMT-2000, and more particularly, a method for efficiently allocating service resources when providing a data service, and a program for realizing the method. The present invention relates to a computer-readable recording medium.

Conventional packet data services include IS-95A packet data service supporting 8Kbps or 14.4Kbps data service, IS-95B packet data service supporting 64Kbps data service, and IS-95C packet data supporting 144Kbps data service. There was a service.

However, even when the system is upgraded from IS-95A to IS-95B / C or the system is upgraded from IS-95B to IS-95C, the conventional system capacity should be sufficiently supported. Since physical channel resources per channel element were matched 1: 1, there was a problem in that service capacity could not be efficiently allocated when the capacity of the upgraded system was allocated as it is for the previous service capacity. In other words, if a 144Kbps data channel is allocated to support 64Kbps data service, wasteful of the data channel, the channel can no longer be allocated when the mobile station requires 144Kbps data service. There was a problem that can not support the data service.

SUMMARY OF THE INVENTION The present invention has been proposed to solve the above problems, and comprises a data service resource allocation method and a method for variably allocating a required data service capacity by configuring a channel for providing a data service as a logical channel. It is an object of the present invention to provide a computer-readable recording medium that records a program for realization.

1 is an exemplary configuration diagram of a mobile communication system to which the present invention is applied.

2 is a flowchart illustrating a data service call setup process to which the present invention is applied.

3 is a flowchart illustrating a call processing process between a base station controller and a packet controller of FIG.

4 is a flowchart of an embodiment of a data service resource allocation method according to the present invention;

* Explanation of symbols for the main parts of the drawings

11 mobile station 13 base station

15: base station controller 17: mobile switching center

19: packet control unit 21: packet data service node

23 call control processor 25 high capacity transcoder selector bank

27: high speed data selector bank 29: data control processor

31: packet control block

In order to achieve the above object, the present invention provides a data service capacity allocation method of a mobile communication system including at least one CPU in charge of data service call processing. Analyzing a data call request to determine whether it is a call establishment request or a call release request; A second step of the base station controller confirming a data service capacity required for a call; If the call establishment request is a 144 Kbps / 64 Kbps data service, the base station controller allocates an available packet data service capacity of 2.4 within a maximum available service capacity range; A fourth step of the base station controller allocating an available packet data service capacity of 1 within a maximum available service capacity range if the call establishment request is a 14.4 Kbps / 8Kbps data service; A fifth step of the base station controller releasing the available packet data service capacity of 2.4 allocated according to the 144Kbps / 64Kbps data service capacity when the call release request is a 144Kbps / 64Kbps data service; And a sixth step in which the base station controller releases the available packet data service capacity of 1 allocated according to the 144Kbps / 64Kbps data service capacity when the call release request is a 14.4Kbps / 8Kbps data service.

On the other hand, in the present invention, in order to variably allocate data service capacity, a base station controller analyzes a data call request when receiving a data call request from a mobile station in a mobile communication system having a processor, and determines whether it is a call setup request or a call release. A first function of determining whether a request is made; A second function of the base station controller confirming a data service capacity required for a call; A third function of assigning, by the base station controller, an available packet data service capacity of 2.4 within a maximum available service capacity range when a call establishment request is a 144 Kbps / 64 Kbps data service; A fourth function of assigning, by the base station controller, an available packet data service capacity of 1 within a maximum available service capacity range when a call establishment request is a 14.4 Kbps / 8 Kbps data service; A fifth function of the base station controller releasing an available packet data service capacity of 2.4 allocated according to the 144Kbps / 64Kbps data service capacity when the call release request is a 144Kbps / 64Kbps data service; And if the call release request is a 14.4 Kbps / 8 Kbps data service, the base station controller records a program for realizing a sixth function of releasing the available one packet data service capacity of 1 allocated according to the 144 Kbps / 64 Kbps data service capacity. Provide a readable recording medium.

The CPU may be included in a base station controller (BSC) or a packet control function (PCF). The channel concept in the High Speed Selector Bank (HDSB) is one HDSB board rather than a physical channel, such as assigning one voice channel in one channel element in the case of voice communication. This is a logical channel concept that handles all data calls in the CPU mounted on the CPU.It can be used in the same way as the index concept based on the task of managing the HDSB internal database. Call control processor (HDCB) allocates an HDSB to provide data service to an available HDSB.

The above objects, features and advantages will become more apparent from the following detailed description taken in conjunction with the accompanying drawings. Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is an exemplary configuration diagram of a mobile communication system to which the present invention is applied. As shown in FIG. 1, a mobile communication system includes a mobile station (MS) 11 and a wireless section with the mobile station 11. A base transceiver system (BTS) 13 that transmits and receives a message and manages radio resources, and a base station controller (BSC) 15 that controls a BTS 13 and transmits and receives a message with the BTS 13. The BSC 13 includes a call control processor (CCP) 23 for controlling the BSC 13, and a high capacity transcoder selector (HTSB) for performing call processing for voice communication. Bank 25 and High Speed Data Selector Bank (HDSB) 27 are also included. In addition, as shown in the figure, a mobile switching for switching an incoming / outgoing call of the mobile station 11. Mobile Switching Center (MSC) 17 and Packet Data Service A packet control function (PCF) 19 connected to a node (PDSN: Packet Data Service Node) 21 to support data services is included in the mobile communication system. Here, the PCF 19 includes a PCF 19 Data control processor (DCF) 29 and a packet control function block (PCFB) 31. In such a system configuration, the CCP 23 has resource management and allocation procedures for efficient use of resources in data call processing, and efficient algorithms and procedures can increase system performance to provide more service capacity. .

FIG. 2 is a flowchart illustrating a data service call setup process to which the present invention is applied. As shown in FIG. 2, the mobile station 11 transmits a call over an access channel of a radio section to request packet data service. Origination) message is transmitted to the BSC (15) (S201). Then, the BSC 15 transmits a message confirming reception of the outgoing message to the mobile station 11 (S202), and transmits a connection management (CM) service request message to the MSC 17 (S203). In response, the MSC 17 transmits a message requesting radio resource allocation to the BSC 15 (S204).

3 is a flowchart illustrating a call processing process between the base station controller and the packet controller of FIG. 2.

In step S201, the CCP 23 of the BSC 15, which has received the packet data service request from the mobile station 11, transmits a message requesting data call processing to the HDSB 27 (S301). ) Requests available HDSB information from the HDSB 27 (S303). Then, the HDSB 27 receiving the available HDSB information transmits the available HDSB information and the HDSB state information to the CCP 23 (S305). Here, the available HDSB information is information indicating whether data service processing of the current HDSB 27 is possible, and is information received from the HDSB 27 when the CCP 23 is restarted, and the HDSB status information is currently Information for informing the information of the HDSB in service processing, which is information received during call processing. Here, in the case of voice communication, the HDSB 27 allocates a physical channel (for example, one voice channel in one channel element). Rather than assigning a physical channel, it has a logical channel that processes all data calls from a CPU mounted on a single HDSB board. Therefore, the HDSB state information managed by the CCP 23 is reported in units of boards of the HDSB 27 and not in units of channels.

Based on the available HDSB information and the HDSB state information, the CCP 23 allocates a data service resource to the HDSB 27 (S307). Here, the data service resource means a channel for providing a data service, which will be described later with reference to FIG. 4. The HDSB 27 assigned with the data service resource then acquires a connection with the mobile station 11, obtains time synchronization, and performs service negotiation with the mobile station 11 based on the assigned data service resource. Informs the CCP 23 that the data service channel with the mobile station 11 has been acquired (S309).

Steps S301 to S309 are included in the step S205 of establishing a radio traffic channel between the BSC 15 and the mobile station 11 of FIG. 2. A radio traffic channel is established between the BSC 15 and the mobile station 11, and the BSC is established. When the 15 requests traffic channel setting to the PCF 19 (S206), the PCF 19 sets up a channel with the PDSN 21 (S207), and sends a channel setting completion message to the CCP 23 of the BSC 15. (S208). On the other hand, the CCP 23 having received the channel setting completion message transmits a radio resource allocation completion message to the MSC 17 (S209), and the mobile station 11 and the PDSN 21 establish a PPP connection (S210). ).

4 is a flowchart illustrating a method of variably allocating data service resources according to an embodiment of the present invention. A service capacity is initialized and a maximum available service capacity is defined (S401). Here, in order to explain an embodiment of the present invention, the flow chart shown in this figure employs an MPC 750 CPU that has a speed of up to 400Mhz and can handle 733MIPS (11.7 Mbps) in the HDSB 27. Considering frame selection, 62% of performance can be achieved, and it is assumed that it can handle up to 7.2Mbps (= 11.7 x 0.62). Thus, up to 50 calls (= 7.2 Mbps / 144 Kbps) can be handled by the HDSB 27, while 144 Kbps and 64 Kbps packet data services can handle up to 120 calls. It is presented assuming that it can be treated in (27).

However, the number of channels that can be allocated, that is, the service capacity may vary according to the CPU processing capacity and data service capacity of the HDSB 27 assumed in one embodiment of the present invention. It is obvious to those of ordinary knowledge. Therefore, it should be understood that the present invention is not limited to the service capacity allocation as shown in FIG. For example, in the embodiment of FIG. 4, the service channel is allocated to 8 / 14.4 Kbps and 64/144 Kbps data service request based on 14.4 Kbps and 144 Kbps, respectively, but the service channel is allocated to each data service request. In the embodiment of FIG. 4, in the case of a data service request of 8 / 14.4 Kbps, up to 120 calls are allocated, but 553 calls (= 7.2 Mbps / 14.4 Kbps) are provided. It is obvious that the service capacity may be allocated until.

In step S401, when the maximum available service capacity is set to 120 channels for the HDSB 27 resource allocation, the available packet data service capacity of 8 Kbps / 14.4 Kbps is 1, and the available packet data service capacity of 64 Kbps / 144 Kbps is 2.4. To allocate. That is, resource allocation of capacity available for 64Kbps / 144Kbps data service allocates 2.4 to support up to 50 calls, and available service capacity for up to 120 calls for 8Kbps / 14.4Kbps data service. Assign 1 to support it.

In another embodiment of the present invention, 144 Kbps can support up to 50 calls, and thus, the available packet data service capacity is allocated to 2.4, and 64 Kbps can support up to 60 calls. Allocate available packet data service capacity to 2, support up to 80 calls for 14.4 Kbps, and assign available packet data service capacity to 1.5, and up to 120 calls for 8 Kbps In this case, the available packet data service capacity may be allocated to 1 as being able to support.

As described above, in the case of voice communication, the HDSB 27 is mounted on one HDSB board rather than allocating a physical channel such as allocating one voice channel in one channel element. Since the CPU has a logical channel processing all data calls, and the HDSB status information managed by the CCP 23 is reported in units of boards of the HDSB 27, not in channels. By allocating the available packet data service capacity to 1, 1.5, 2 or 2.4, the available service capacity is used as if the actual channel was allocated.

According to the present invention, when the resources of the HDSB 27 are allocated, the available service capacity of the HDSB 27 increases by 1 from the initial value when the first 8 Kbps data service is required. If the 144 Kbps data service is requested while this 8 Kbps data service is in progress, the available service capacity of the HDSB 27 increases to 3.4. If 8Kbps data service is terminated while 8Kbps and 144Kbps data services are in progress, the available service capacity of HDSB 27 is reduced to 2.4. In this way, the available service capacity is allocated so that its maximum value does not exceed 120.

4 again, after step S401, it is determined whether the data service request from the mobile station 11 is a call setup request or a call release request (S403), and in the case of a call setup request, the mobile station 11 requests it. In the case of supporting the data service capacity, it is determined whether the maximum data service resource allocation capacity of the HDSB 27 is exceeded (S405), and if the service resource allocation capacity is not exceeded, what is the data service capacity required by the mobile station 11? In step S407, S411, S415, and S419, data service resources of 1 are allocated (S417, S421) or data service resources of 2.4 are allocated (S409, S413).

On the other hand, in step S403, when the data service request from the mobile station 11 is a call release request (S403), it is determined how much data service capacity the mobile station 11 requests for release (S423, S427, S431, S435) Release the data service resource of 1 (S433, S437), or release the data service resource of 2.4 (S425, S429).

According to the present invention as described above, it is possible to efficiently manage data service resources in the process of allocating the low speed data service and the high speed data service in the mobile communication system.

In addition, as described above, in the embodiment of the present invention, only the data service resource allocation process in the BSC 15 is disclosed, but the PCF 19 should also allocate the data service resource, and the DCP 29 may use the PCF ( 19) As a control unit, data service resources of the PCF 19 are allocated. In this case, the PCF 19 resources may be allocated using the above algorithm.

The method of the present invention as described above may be implemented as a program and stored in a computer-readable recording medium (CD-ROM, RAM, ROM, floppy disk, hard disk, magneto-optical disk, etc.).

The present invention described above is not limited to the above-described embodiments and the accompanying drawings, and various substitutions, modifications, and changes are possible in the technical field of the present invention without departing from the technical spirit of the present invention. It will be clear to those of ordinary knowledge.

According to the present invention as described above, by configuring a channel for providing a data service as a logical channel and variably allocating required data service capacity, it is possible to efficiently manage data service resources, thereby improving system performance. There is.

Claims (12)

A data service capacity allocation method of a mobile communication system including at least one CPU in charge of data service call processing, the method comprising: Receiving a data call request from the mobile station, the base station controller analyzing the data call request to determine whether it is a call setup request or a call release request; A second step of the base station controller confirming a data service capacity required for a call; If the call establishment request is a 144 Kbps / 64 Kbps data service, the base station controller allocates an available packet data service capacity of 2.4 within a maximum available service capacity range; A fourth step of the base station controller allocating an available packet data service capacity of 1 within a maximum available service capacity range if the call establishment request is a 14.4 Kbps / 8Kbps data service; A fifth step of the base station controller releasing the available packet data service capacity of 2.4 allocated according to the 144Kbps / 64Kbps data service capacity when the call release request is a 144Kbps / 64Kbps data service; And Step 6, when the call release request is 14.4 Kbps / 8 Kbps data service, the base station controller releases the available packet data service capacity of 1 allocated according to the 144 Kbps / 64 Kbps data service capacity. Data service capacity allocation method comprising a. The method of claim 1, The CPU The data service of 144Kbps and 64Kbps can handle up to 50 calls, and the data service of 14.4Kbps and 8Kbps has a processing capacity of 7.2Mbps that can handle up to 120 calls. The service capacity of 2.4 is allocated or released for data services of 144 Kbps and 64 Kbps, and the service capacity of 1 is allocated or released for data services of 14.4 Kbps and 8 Kbps. delete delete delete delete The method according to claim 1 or 2, The CPU, Data service capacity allocation method, characterized in that included in the base station controller (BSC). The method according to claim 1 or 2, The CPU, Data service capacity allocation method, characterized in that it is included in the packet control function (PCF). In a mobile communication system having a processor for variably allocating data service capacity, A first function of, upon receiving a data call request from a mobile station, the base station controller analyzing the data call request to determine whether it is a call setup request or a call release request; A second function of the base station controller confirming a data service capacity required for a call; A third function of assigning, by the base station controller, an available packet data service capacity of 2.4 within a maximum available service capacity range when a call establishment request is a 144 Kbps / 64 Kbps data service; A fourth function of assigning, by the base station controller, an available packet data service capacity of 1 within a maximum available service capacity range when a call establishment request is a 14.4 Kbps / 8 Kbps data service; A fifth function of the base station controller releasing an available packet data service capacity of 2.4 allocated according to the 144Kbps / 64Kbps data service capacity when the call release request is a 144Kbps / 64Kbps data service; And A sixth function for the base station controller to release the available packet data service capacity of 1 allocated according to the 144 Kbps / 64 Kbps data service capacity when the call release request is a 14.4 Kbps / 8 Kbps data service; A computer-readable recording medium having recorded thereon a program for realizing this. delete delete delete