KR100422711B1 - Method of frequency information commoning of different base station - Google Patents

Abstract

The present invention relates to a method of sharing frequency information between different base stations, and the method of sharing frequency between other base stations according to the present invention corresponds to a frequency error occurrence / recovery message in a first base station where any frequency error has occurred / recovered. Transmitting to the first base station management apparatus; The first base station management device receiving the frequency error generation / recovery message transmits the frequency error generation / recovery message and service usage change message to a second base station management device in charge of another mobile communication system service using a standard protocol. step; Transmitting, at the second base station management apparatus, the frequency error occurrence / recovery message and service usage change message received using a standard protocol to a second base station of the corresponding system; Transmitting a response message for the frequency error occurrence / recovery message and a service usage change message received at the second base station to the second base station management apparatus, and updating the first base station frequency information and service usage information; And transmitting the changed serviceable frequency information to all frequencies serviced by the second base station.

According to the present invention, it is expected that the frequency information shared by the base stations of different mobile communication systems installed in the same area can be shared between base stations through a base station management apparatus using a standard protocol.

Description

Method of sharing frequency information between other base stations {Method of frequency information commoning of different base station}

The present invention relates to a method for sharing frequencies between different mobile communication system base stations, and more particularly, to a method for sharing frequencies between 2G system base stations and 1X base stations.

Mobile communication systems that used voice communication through wireless communication have developed to the level of transmitting data at high speed in modern times.

The mobile communication system is divided into 1G, 2G, and 3G generations, and 1G refers to an analog mobile communication service.

The 2G refers to the majority of services currently served by domestic and foreign mobile subscribers, and commonly refers to CDMA, PCS, GSM in Europe, and PDC in Japan.

The CDMA system is serviced based on standard recommendations under the auspices of the American Telecommunications Equipment Manufacturers Association (TIA) of IS-95A and IS-95B.

In addition, IS-95C has been developed to implement high-speed data transmission by resolving the capacity problem for data service by changing a large part of common air interface (CAI) standard of IS-95A.

The above-mentioned 2G mobile communication system allocates some frequencies to support high-speed data communication similar to 3G mobile communication service, and a new mobile communication system for 3G is being separately constructed.

In particular, the present invention shares frequency information between a 2G system including a 1X upgraded version for enabling additional use of a 1X service, which is a type of 3G mobile communication service, to a 2G system, and a 1X overlay system, which is a 3G mobile communication system. I will focus on how to do this.

Conventionally, there is no method for exchanging information between a base station of a 2G system and a base station of a 1X system.

However, some of the frequencies allocated to operators by the user's definition in advance are used by some of the 2G systems and others by the base stations of the 1X system.In the base station operation, communication between the other base stations is impossible even if an error of the frequency occurs or recovers. So there was a problem with each other unknown.

Accordingly, the mobile communication terminal user can use the 2G voice service or the 1X data service only at a predetermined frequency, and since the error frequency information is not known, a problem may occur in connection.

In order to solve the above problems, the present invention uses the point that the base station management device connected to each base station can exchange information through the standard protocol TCP / IP method, the base station to exchange the frequency information from the base station It is an object of the present invention to provide a frequency sharing method between other base stations to easily share frequency information between base stations of different mobile communication systems by updating the frequency information.

1 is a flowchart illustrating a method of transmitting frequency information to a counterpart base station when a frequency error occurs / recovery of a base station of a 2G system or a base station of a 1X system according to an exemplary embodiment of the present invention.

2 is a message flow diagram when a service usage change in a 2G system base station or a 1X system base station according to an embodiment of the present invention.

Frequency information sharing method between other base stations according to the present invention,

Transmitting a frequency error occurrence / recovery message to a corresponding first base station management apparatus at a first base station where any frequency error has occurred / recovered;

The first base station management device receiving the frequency error generation / recovery message transmits the frequency error generation / recovery message and service usage change message to a second base station management device in charge of another mobile communication system service using a standard protocol. step;

Transmitting, at the second base station management apparatus, the frequency error occurrence / recovery message and service usage change message received using a standard protocol to a second base station of the corresponding system;

Transmitting a response message for the frequency error occurrence / recovery message and a service usage change message received at the second base station to the second base station management apparatus, and updating the first base station frequency information and service usage information;

And transmitting the changed serviceable frequency information to all frequencies serviced by the second base station.

Preferably, the first base station is a base station capable of 2G service and 1X upgrade service, which is a second generation mobile communication service, and the second base station is a base station capable of 1X overlay service, which is a third generation mobile communication service;

The first base station is a base station capable of 1X overlay service, which is a third generation mobile communication service, and the second base station is a base station capable of 2G service and 1X upgrade service, which is a second generation mobile communication service.

Preferably, the frequency error occurrence / recovery message,

An error is generated or recovered at any one of a 2G service frequency and a 1X service frequency preset and serviced by each base station, and includes information on an error occurrence or recovery of the frequency.

Preferably, the service use change message,

Set up 2G service and 1X service at the same time for each base station,

Or it includes information to set to provide only 2G services.

Referring to the accompanying drawings with respect to the frequency sharing method between other base stations according to the present invention configured as described above are as follows.

1 is a view illustrating an operation flow of a method of transmitting frequency information to a counterpart base station when a frequency error occurs and recovery of a base station of a 2G system or a 1X system base station according to an embodiment of the present invention.

Referring to FIG. 1, a 2G base station is specified between a 2G base station main processor 10, a 2G base station manager (BSM) 20, a 1X BSM 40, and a 1X base station main processor 30. When an error in frequency occurs / recovered (S101), the 2G base station main processor 10 in which the frequency error occurs / recovered transmits a frequency error occurrence / recovery information message to the corresponding 2G BSM 20 (S102).

In this case, the frequency error generation or recovery is to set the frequency for the 2G service and 1X service in each base station, the service is not available because the error occurs in any frequency, or recovers any frequency where the error occurred When the service is available again, in order to share the same fact with the other party (1X base station or 2G base station) to provide the same frequency information to all subscribers, a frequency error generation / recovery message is created and transmitted.

Upon receiving the frequency error occurrence / recovery information message, the 2G BSM 20 transmits a frequency status information message to the counterpart 1XBSM 40 (S103), and also transmits a service usage change message.

Since the 2G BSM 20 and the 1X BSM 40 are workstations, the 2G BSM 20 and the 1X BSM 40 have a function of sending and receiving messages using a standard protocol TCP / IP, and thus using a frequency error generation / recovery message received from a corresponding base station. By creating information of serviceable and non-serviceable frequencies, service status information messages can be exchanged with each other using TCP / IP.

In addition, the service usage change message is a message for determining the type of service provided by the base station and indicates Ext_CHAN_LIST field information of a system parameter message. In general, when this field value is '1', 1X service is supported. If '0', only 2G service is supported.

Therefore, the BSM of each mobile communication system can change and set the use of the base station according to the operator's selection and limit the type of service.

When the frequency state information message and the service usage change message are transmitted to the 1X BSM 40, the frequency state information message and the service usage change message are transmitted to the 1X base station main processor 30 (S104), and a response message is received (S105).

The 1X base station main processor 30 updates the frequency information and service usage information used by the counterpart base station, that is, the 2G base station by using the received frequency state information message and service use change message (S106), and is currently in service. CCDMA (CDMA channel list message) and ECCLM (Extended CDMA channel list message) is transmitted at all frequencies (S107).

The CCLM is frequency channel information for 2G service, and the ECCLM is frequency channel information for 1X service. As described above, each time frequency information is changed, the CCLM transmits CCLM and ECCLM to all frequencies so that the wireless terminal can service 2G. It is to know and use 1X serviceable frequency.

In addition, when the frequency error occurs or recovered in the 1X base station, the information is exchanged and notified to the 2G base station main processor so that the CCLM and ECCLM can be retransmitted to all terminals serving the 2G base station.

Meanwhile, the 1X base station and the 2G base station may provide 2G service and 1X service, respectively. Whether to provide both services or only 2G service may be changed by the operator's setting.

A description of such service usage change will be described in detail with reference to FIG. 2.

2 is a message flow diagram when a service usage is changed in a 2G system base station or a 1X system base station according to an exemplary embodiment of the present invention.

Referring to FIG. 2, when an operator changes the purpose of the 2G base station through the 2G BSM 20, a system parameter message as described above to provide only 2G service or 1X service together. ), The EXT_CHAN_LIST field information is changed to '1' or '0' (S201).

According to the base station use change by the operator, the 2G BSM 20 transmits a service use change message to the 2G base station (S202), and accordingly, the 2G base station main processor 10 changes the service use (S203). .

When the service usage is changed according to the operator's setting, the 2G base station main processor 10 transmits a response message to the 2G BSM 20 (S204), updates its base station service usage information (S205), and is currently in service. Notify by transmitting all frequency CCLM and ECCLM messages (S206).

Meanwhile, the 2G BSM 20 should inform the other party's 1X base station that the service usage of the 2G base station has been changed. For this purpose, the 2G BSM 20 first transmits a service usage change message to the 1X BSM 40 using the TCP / IP standard protocol (S207). ).

The 1X BSM 40 transmits the received service usage change message to the 1X base station main processor 30 (S208), and then receives a response message (S209).

The 1X base station main processor 30 updates the service usage information of the other base station according to the received service usage change information (S210), and then transmits and informs CCLM and ECCLM at all frequencies currently being serviced (S211).

Informing the frequency use change as described above is performed in the same manner when changing the frequency use of the 1X base station.

As described above, the 2G base station and the 1X base station can share frequency information by exchanging frequency state information and service usage change information between the base station management apparatuses using a standard protocol.

As described above, in the method of sharing a frequency between other base stations according to the present invention, when a new mobile communication system is additionally serviced to an existing mobile communication system, a limited frequency resource is divided and used in different mobile communication systems. In the case where the direct communication was not possible in the exchange of frequency information between the wireless terminals, the wireless terminal shared the frequency information by transmitting and receiving frequency information through a base station management apparatus that can use a standard protocol to provide a mobile communication service. It is effective to know and use.

Claims (4)

Transmitting a frequency error occurrence / recovery message to a corresponding first base station management apparatus at a first base station where any frequency error has occurred / recovered; The first base station management device receiving the frequency error generation / recovery message transmits the frequency error generation / recovery message and service usage change message to a second base station management device in charge of another mobile communication system service using a standard protocol. step; Transmitting, at the second base station management apparatus, the frequency error occurrence / recovery message and service usage change message received using a standard protocol to a second base station of the corresponding system; Transmitting a response message for the frequency error occurrence / recovery message and a service usage change message received at the second base station to the second base station management apparatus, and updating the first base station frequency information and service usage information; And transmitting the changed serviceable frequency information to all frequencies serviced by the second base station. The base station of claim 1, wherein the first base station is a base station capable of 2G service and 1X upgrade service, which is a second generation mobile communication service, and the second base station is a base station capable of 1X overlay service, which is a third generation mobile communication service; The first base station is a base station capable of 1X overlay service, which is a third generation mobile communication service, and the second base station is a base station capable of 2G service and 1X upgrade service, which is a second generation mobile communication service. . The method of claim 1, wherein the frequency error generation / recovery message, Error information is generated or recovered in any of 2G service frequency and 1X service frequency preset and serviced by each base station, so that frequency information is shared between other base stations, including information on the occurrence or recovery of the error of the frequency. Way. The method of claim 1, wherein the service usage change message, Set up 2G service and 1X service at the same time for each base station, Or sharing information configured to provide only 2G services.