KR20010059551A - Combined type basestation apparatus and its operational method - Google Patents

Abstract

PURPOSE: An integration-type base station and a method for operating the base station are provided to manage functions of systems, divided into a base station and a base station controller, with integration. CONSTITUTION: A trans-coder part(33) detects a voice signal conversion and a tone, and interfaces a traffic channel of a wireless modem part(32), and then performs a traffic channel interface with a switch(34). The switch(34) controls the trans-coder part(33), a processor(41) and E1 interface parts(35,37). The E1 interface parts(35,37) interface with a switching center(38) and a data network interface unit(36), and perform the traffic channel interface with the switch(34). A processor(39) controls the wireless modem part(32), and processes a system message. A processor(40) controls the trans-coder part(33). and reports a status and an error of the trans-coder part(33) to a processor(43). The processor(41) controls the switch(34), and allocates a switch channel. A processor(42) receives and transmits a V5.2 signal, and processes a protocol. A processor(43) controls the processors(39,40,42), and interfaces with an operator.

Description

Integrated base station apparatus and its operation method {COMBINED TYPE BASESTATION APPARATUS AND ITS OPERATIONAL METHOD}

The present invention is currently being used in the wireless subscriber network (WLL), broadband wireless subscriber network (B-WLL), frequency public communication network (TRS), mobile telephone network (Cellullar), personal mobile communication network (PCS), intelligent transportation network (ITS), foreign countries In the wireless communication system including other mobile phone networks in use in next generation, next generation mobile communication networks such as International Mobile Telecommunication-2000 (IMT-2000) and Universal Mobile Telecommunication Service (UMTS), which are currently being standardized in European and North American methods. A base station apparatus incorporating the functions of a base station and a base station controller, a method of operating the same, and a computer-readable recording medium having recorded thereon a program for realizing the method, particularly in a wireless subscriber network (WLL). An integrated base station apparatus capable of integrating and managing functions of separate systems into one, an operation method thereof, and a method for realizing the method. It relates to a computer-readable recording medium recording the program.

1 is a block diagram of a conventional wireless communication system.

As shown in FIG. 1, the conventional wireless communication system includes a base station controller (BSC) 13, which controls a base station (BS) 12 and several base stations, between the subscriber station 11 and the switch 14. One base station controller 13 is configured to control several base stations 12. Such a system configuration is suitable for accommodating a large number of subscribers, but it is not suitable for the current state of subscriber lines in Korea. Can be. Therefore, when accommodating small subscribers distributed in a specific region, the base station controller 14 cannot fully utilize the resources of the base station controller 14, and thus, a base station apparatus capable of solving such disadvantages is required.

The conventional wireless subscriber network system currently being developed in Korea is composed of a plurality of subscriber stations (subscriber access devices), a base station for connecting them wirelessly, a base station controller for controlling several base stations and connected to a switch. The wireless subscriber network system having such a configuration has no problem when accommodating large subscribers, but when the wired subscriber line is well established as in Korea, the wireless subscriber network demand is distributed in a region where a small number of subscribers is limited. It is likely to be concentrated somewhere. Installing a conventional wireless subscriber network system in such an area results in using only a part of the base station controller capacity, resulting in an inefficient system.

In general, the base station controller is configured to control and manage 16 base stations, in which case one base station controller accommodates a maximum of 8,000 subscribers. However, considering the facilities and distribution of domestic wired subscriber lines, it is unlikely that many subscribers will be accommodated in the wireless subscriber network (WLL) at the same time, making it difficult to properly use the capacity of the base station controller. . Therefore, if the conventional system structure is maintained as it is, the cost of the wireless subscriber network is increased, which causes a problem of lowering investment efficiency and weakening competitiveness with other subscriber networks.

The present invention has been made to solve the above problems, and functions of systems separated into a base station and a base station controller when accepting small subscribers distributed in a specific area in a wireless communication system such as a wireless subscriber network (WLL). It is an object of the present invention to provide an integrated base station apparatus for unifying and managing them as one, a method of operating the same, and a computer-readable recording medium storing a program for realizing the method.

1 is a block diagram of a conventional wireless communication system.

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

3 is an embodiment configuration diagram of an integrated base station apparatus according to the present invention;

4A and 4B are flowcharts of one embodiment of a method of operation of an integrated base station according to the present invention;

* Explanation of symbols for the main parts of the drawings

31: RF unit 32: wireless modem unit

33: transcoder section 34: switch section

35,37: interface unit 36: data network matching device

38: switch 39: processor 1

40: processor 2 41: processor 3

42: processor 4 43: processor 5

According to an aspect of the present invention, there is provided an integrated base station apparatus incorporating functions of a base station and a base station controller in a wireless communication system, comprising: radio frequency processing means for transmitting and receiving radio frequency signals through a wireless connection with a subscriber access device; Signal modulation and demodulation means for modulating and demodulating the signal between the base station and the base station controller according to the control signal to mutually enable data communication; Interfacing means for interfacing with a packet network according to the control signal; Transcoding means for compressing / extending the data transmitted from the signal modulation / demodulation means to detect a voice signal tone and remove echo of the voice data according to the control signal; Switching means for connecting said transcoding means to said interfacing means in accordance with said control signal; First control means for generating the control signal in accordance with a state control signal; And second control means for generating a state control signal for controlling the state of the first control means.

In addition, the present invention is a method of operating an integrated base station apparatus incorporating the functions of a base station and a base station controller applied to a wireless communication system, the first lower-level processor Receiving a access channel message according to an originating request generated through an access channel and analyzing an outgoing call processing request message to determine a traffic information type; Selecting a switch and a data network matching device to allocate a channel according to the traffic information type, and receiving a response from the switch to notify a higher level processor of the request for channel allocation; And a third step in which the first lower level processor, which is requested to allocate a radio channel from the higher level processor, forms a paging message and connects to the packet network through the paging channel.

The present invention also provides an integrated base station apparatus incorporating the functions of a base station and a base station controller in a wireless communication system having a processor. Receiving the access channel message according to the outgoing request generated through the access channel and analyzing the outgoing call processing request message to determine a traffic information type; Selecting a switch and a data network matching device to allocate a channel according to the traffic information type, and receiving a response from the switch to notify a higher level processor of the request for channel allocation; And a computer readable recording medium having recorded thereon a program for realizing a function of connecting a packet network through a paging channel by the first lower level processor requesting to allocate a radio channel from the upper level processor. to provide.

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.

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

As shown in FIG. 2, the present invention provides an integrated base station incorporating functions of systems separated into a conventional base station and a base station controller between a subscriber station 21 and an exchange 23 in a wireless communication system. By constructing (22), the system construction cost is reduced and operation maintenance convenience is maintained.

3 is a diagram illustrating an embodiment of an integrated base station apparatus according to the present invention.

As shown in FIG. 3, the integrated base station device amplifies a radio frequency transmission signal transmitted from an antenna, amplifies a low noise radio frequency reception signal, modulates and bandpass filters an intermediate frequency signal, and transmits and receives radio frequency. Signal processing (channel coding / decoding, interleaving / deinterleaving, symbol repetition) of the RF (Radio Frequency) unit 31 and the wideband CDMA (W-Code Division Multiple Access) signal as a baseband to the transcoder unit 33 A switch 34 for interfacing the traffic channel of the radio modem unit 32 with a radio modem unit 32 for processing and matching the intermediate frequency signal of the traffic matching and RF unit 31, detecting voice signal conversion and tone, and And a transcoder section 33 for performing a traffic interface with the transcoder section 33, a switch section 34 for adjusting the transcoder section 33, the processor 3 (41), and the first and second E1 interface sections (35, 37). And exchanger 38 and Controls the E1 interface units 35 and 37 and the wireless modem unit 32 to perform V5.2 / E1 matching with the data network matching device 36 and to perform the traffic channel interface with the switch 34, and to manage and troubleshoot the state. Processor 1 (39) for transmitting and receiving a system message (synchronization / paging / access message) and transcoder unit 33 and detecting state management and faults by detecting the state of the transcoder unit 33 Processor 2 (40) for reporting a failure to processor 5 (43), processor 3 (41) for controlling the switch unit 34, detecting a state management and a failure, and assigning a switch channel, and controlling the E1 interface and failure. Processor 4 (42) for detecting and transmitting and receiving V5.2 signals and protocol processing; and processor 5 (43) for controlling processors 1, 2, 4 (39, 40, 42), detecting failures, and matching with operators. .

As described above, in the present invention, it is possible to secure only economics by accommodating only one base station in one base station controller, and additionally integrates the base station and the base station controller to include the data network matching device in the base station device, thereby securing economical efficiency and high speed in the future. Provides wireless data service.

4A and 4B are flowcharts of an embodiment of a method of operating an integrated base station according to the present invention.

As shown in FIGS. 4A and 4B, when a call request is generated through the access channel, the base station receives the access channel message to the processor 1 39 through the RF unit 31 and the wireless modem unit 32 (401). .

Subsequently, when processor 1 39 receives the access channel message and proceeds interprocessor communication to request outgoing call processing to processor 5 43, processor 5 43 analyzes the outgoing call processing request message (402). In step 403, the type of traffic information is determined.

As a result of the determination, if the voice traffic is requested to the processor 2 (40), the voice conversion process (404), if the data traffic is requested for the non-conversion process (405), the processor 3 (41) requests the switch channel allocation (406) .

Subsequently, the processor 3 (41), which has been requested to allocate the channel, selects the exchange matching E1 or the data network matching E1 according to the traffic information type in the switch channel allocation request message to allocate the channel (407). At this time, when processor 5 (43) requests processor 4 (42) to transmit to exchange 38 (408), processor 4 (42) transmits V5. The message 2 is transmitted, and the response of the switch 38 is received, and the processor 5 43 is notified of the channel allocation request (409). Accordingly, the processor 5 (43) notified of the channel allocation request requests the processor 1 (39) to allocate a radio channel (410).

Subsequently, processor 1 39 forms a paging message and determines whether to request channel allocation to the terminal station through the paging channel (411).

As a result of the determination, if the voice traffic receives a dial tone from the exchange, the call is then communicated with the other party through dialing (412), and if the data traffic is connected to the data network through an interworking function (IWF) (413). .

On the other hand, if the traffic type is traffic by analog modem or G3 fax (FAX), the call is initially set up in the same process as the voice traffic described above, and then the fax or modem tone is detected by the transcoder unit 33. In this case, the call being set up is transmitted to the processor 5 (43) through the processor 2 (40), rather than the voice call. Processor 5 43 requests channel change from voice channel to voice band data channel through signal channel in the corresponding traffic channel through processor 1 39. The terminal station receiving the channel change request changes the channel and transmits the change completion message to the processor 1 39 via the RF unit 31 and the wireless modem unit 32. Upon receiving the channel change completion message from the terminal station, processor 1 39 transmits the channel change completion result to processor 5 43. Processor 5 (43) receives this request to the processor 2 (40) to perform a non-transformation processing, the processor 2 (40) is a non-transformation processing, so all the path from the terminal station to the exchange 38 is composed of a channel of 64kbps You can use a fax or modem.

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

As described above, the present invention includes the function of the base station controller in the base station without installing the base station controller in the switching center by using the integrated base station, so that it is advantageous not only to secure the top of the switching station but also the operation maintenance necessary for operating and managing the base station controller. The need for manpower is eliminated. In addition, the wired subscriber network is well established as in Korea, so if the demand of the wireless subscriber network (WLL) is small or limited to some regions, the system can be efficiently used to improve economic efficiency.

Claims (7)

An integrated base station apparatus incorporating functions of a base station and a base station controller in a wireless communication system, Radio frequency processing means for transmitting / receiving radio frequency signals through a radio with a subscriber access device; Signal modulation and demodulation means for modulating and demodulating the signal between the base station and the base station controller according to the control signal to mutually enable data communication; Interfacing means for interfacing with a packet network according to the control signal; Transcoding means for compressing / extending the data transmitted from the signal modulation / demodulation means to detect a voice signal tone and remove echo of the voice data according to the control signal; Switching means for connecting said transcoding means to said interfacing means in accordance with said control signal; First control means for generating the control signal in accordance with a state control signal; And Second control means for generating a state control signal for controlling the state of the first control means Integrated base station device comprising a. The method of claim 1, The first control means, A first processor for controlling the signal modulation and demodulation means, and detecting and managing a state and a failure to transmit and receive a system message (sync / paging / access message); A second processor that controls the transcoding means, detects status management and faults, and reports it to the second control means; A third processor that controls the switching means and detects state management and faults and allocates a switch channel; And A fourth processor for controlling the interfacing means and detecting a failure to transmit / receive a signal V5.2 and perform protocol processing Integrated base station device comprising a. The method of claim 1, The second control means, And a fifth processor that controls the first, second, and fourth processors, detects a failure, and matches the operator. A method of operating an integrated base station apparatus incorporating the functions of a base station and a base station controller applied to a wireless communication system, In order to collectively manage the functions of the base station and the base station controller, a first lower level processor receives an access channel message according to an outgoing request generated through an access channel and analyzes an outgoing call processing request message to determine a traffic information type. First step; Selecting a switch and a data network matching device to allocate a channel according to the traffic information type, and receiving a response from the switch to notify a higher level processor of the request for channel allocation; And A third step in which the first lower level processor, which is requested to allocate a radio channel from the higher level processor, forms a paging message and connects to a packet network through a paging channel; Method of operation of the integrated base station device comprising a. The method of claim 3, wherein The first step is, A fourth step of receiving an access channel message to the first lower level processor through a radio frequency (RF) unit and a radio modem unit when a call request is generated through an access channel; A fifth step of analyzing the outgoing call processing request message by transmitting the received access channel message to the upper level processor; A sixth step of determining a traffic information type of the upper level processor; As a result of the sixth step, a seventh step of requesting a voice conversion process by transferring the voice traffic to a second lower level processor and requesting a non-transformation process of the data traffic; And An eighth step of requesting switch channel allocation to a third lower-level processor after performing the seventh step Method of operation of the integrated base station device comprising a. The method of claim 5, The second step, A ninth step of the third lower level processor, which has been requested to allocate the channel, selects an exchange matching device or a data network matching device and allocates a channel according to the traffic information type in the switch channel allocation request message; A tenth step, wherein the upper level processor requests the fourth lower level processor to process outgoing to the exchange; An eleventh step of sending, by the fourth lower level processor, a message to the exchange through a predetermined channel for transmitting a protocol message, receiving a transmitted response, and notifying the upper level processor of a request for channel allocation; A twelfth step of requesting, by the higher level processor notified of the channel allocation, the radio channel allocation to the first lower level processor; A thirteenth step, wherein the first lower level processor generates a paging message and delivers the paging message to a terminal station through a paging channel and determines whether to request channel allocation; And As a result of the determination of the thirteenth step, in the case of voice traffic, a fourteenth step of receiving a dial tone from the exchange to make a call with the other party; Method of operation of the integrated base station device comprising a. In an integrated base station apparatus incorporating the functions of a base station and a base station controller in a wireless communication system having a processor, In order to collectively manage the functions of the base station and the base station controller, a first lower level processor receives an access channel message according to an outgoing request generated through an access channel and analyzes an outgoing call processing request message to determine a traffic information type. function; Selecting a switch and a data network matching device to allocate a channel according to the traffic information type, and receiving a response from the switch to notify a higher level processor of the request for channel allocation; And The first lower level processor, which is requested to allocate a radio channel from the upper level processor, forms a paging message and accesses a packet network through a paging channel; A computer-readable recording medium having recorded thereon a program for realizing this.