Device and method for measuring radio quality

Description: TECHNICAL FIELD [Detailed description of the invention]

【0001】

[Technical field to which the invention belongs]

The present invention relates to a wireless quality measuring device used for mobile communication, and more particularly to an improvement capable of grasping a wide area wireless communication state in real time.

【0002】

[Conventional technology]

FIG. 9 is an explanatory diagram of conventional wireless quality measurement. The intensity measurement vehicle 62 moves within the measurement area and stops when it arrives at an appropriate place to measure the quality of radio waves radiated from the base station 60 of mobile communication. The intensity measurement vehicle 62 is equipped with a mobile terminal and a measuring instrument for receiving, and a GPS (Global Positioning System) device for positioning. The measuring instrument measures the FER (Frame Error Rate), the ratio (Ec / Io) of the pilot energy (Ec) accumulated over the 1PN chip period to the total power spectrum density (Io) in the reception band. The telecommunications carrier processes the results measured by the intensity measurement vehicle 62 with the office computer 64, draws the radio wave quality on the area map 66, and confirms and analyzes the communication quality in the area in charge of each base station.

【0003】

[Problems to be Solved by the Invention]

However, when wireless quality measurement is performed by the electric measuring vehicle 62, since wireless quality measurement is sequentially performed for each base station, for example, it takes about half a year to measure all the base stations, and the measurement is performed. There was a problem that the required cost was also high. In addition, CDMA (Code Division Multiple Access) has the property that the communication quality in the area fluctuates depending on the amount of traffic, so it is necessary to perform detailed radio quality measurement on a regular basis. However, it is difficult to perform wireless quality measurement frequently and at low cost by performing wireless quality measurement using an intensity measurement vehicle, and if the service area is widely measured in the same time zone, a large number of tasks are required. In addition to the need for personnel, there is a problem that the work time and the cost required for the work become enormous. Furthermore, in order to expand the radio quality measurement values measured by each intensity measurement vehicle on the area map, labor-intensive work such as data entry and map drawing occurs, and the measurement results are quickly expanded on the area map. There was a problem that it was difficult.

【0004】

The present invention solves the above-mentioned problems, and is suitable for performing detailed wireless quality measurement on a regular basis when the communication quality in the area fluctuates due to the amount of traffic as in CDMA, and the measurement result can be quickly obtained. It is an object of the present invention to provide the obtained wireless quality measuring device.

【0005】

[Means for solving problems]

As shown in FIG. 1, the wireless quality measuring device of the first invention that solves the above problems is a mobile device activation type, and is transmitted from the mobile device 10 communicating with the content server 40 via the mobile communication network. The activation request receiving means 34 that receives the activation request of the location information service, and the location information that receives the location information of the mobile unit and the measured value of the radio quality transmitted from the mobile unit when the location information service is used. -The positioning server 30 including the measured value receiving means 36. Preferably, the positioning server 30 is provided with the map expanding means 38 that expands the received position information and the measured value of the radio quality on the map. Here, the location information service provides a service using the location information of the mobile device because the position of the mobile device can be grasped at least within the range of the base station in the mobile communication network.

【0006】

In the device configured in this way, the start request of the location information service is a mobile device start type that is transmitted from the mobile device 10 communicating with the content server 40. When the activation request receiving means 34 receives the activation request of the location information service transmitted from the mobile device 10, the mobile device 10 transmitted from the mobile device 10 when the location information / measured value receiving means 36 uses the location information service. Receive location information and wireless quality measurements. The map expanding means 38 performs data processing such as expanding the received position information and the measured value of the radio quality on the map. The location information service may be used at the start time or after an appropriate time has elapsed from the start time.

【0007】

As shown in FIG. 5, the wireless quality measuring device of the second invention that solves the above problems is a general network activation type, and is a mobile communication network in response to an instruction to activate the location information service of the content server 40. It has a start request means 22 for transmitting a start request of the location information service to the mobile device 10 to the mobile device 10. The activation requesting means 22 may be provided, for example, in the cellular infrastructure system 20 constituting the mobile communication network. The positioning server 30 includes a position information / measured value receiving means 36 that receives the position information of the mobile device 10 and the measured value of the radio quality transmitted from the mobile device when the position information service is used. Preferably, the positioning server 30 is provided with the map expanding means 38 that expands the received position information and the measured value of the radio quality on the map.

【0008】

In the device configured in this way, the start request of the location information service is a general network start type transmitted from the cellular infrastructure system 20 in response to the start instruction of the location information service of the content server 40. The activation requesting means 22 of the cellular infrastructure system 20 transmits a activation request of the location information service to the mobile unit 10 of the mobile communication network to the mobile unit 10. The mobile device 10 transmits the received start request of the location information service to the location positioning server 30. In the position information and measurement reception unit 36 receives the measured value of the position information and the radio quality of the mobile station 10 transmitted from the mobile machine 10 at the time of use of the location service. The map expanding means 38 performs data processing such as expanding the received position information and the measured value of the radio quality on the map.

【0009】

As shown in FIG. 7, the wireless quality measuring device of the third invention that solves the above problems is a dedicated server activation type, and corresponds to the activation instruction of the wireless quality measurement of the dedicated server 50 of the mobile communication network. It has an activation requesting means 22 for transmitting a start request for wireless quality measurement to the mobile device 10 to the mobile device 10. The activation requesting means 22, the position information / measured value receiving means 36, and the map expanding means 38 are the same as those of the radio quality measuring device of the second invention described above. In the device configured in this way, the start request of the location information service is a dedicated server start type sent from the cellular infrastructure system 20 in response to the start instruction of the location information service of the dedicated server 50.

【0010】

Preferably, the radio quality measurements are frame error rate (FER), ratio of pilot energy stored over a 1PN chip period to total power spectrum density in the receive band (Ec / Io), mobile receive power, mobile. If the configuration includes at least one of the transmission outputs of the mobile device, the measured value of the radio quality already provided in the mobile device is used, so that the modification of the mobile device can be reduced. Further, if the position information of the mobile machine is configured to have a positional relationship with the base station used for the handoff processing of the mobile machine, the information of the handoff processing already provided in the mobile machine is used. Less modification is required. Further, if the position information of the mobile device is configured to be a GPS signal received by the mobile device or latitude and longitude information calculated from the GPS signal, accurate position positioning using the GPS signal can be performed.

【0011】

BEST MODE FOR CARRYING OUT THE INVENTION

Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a configuration block diagram illustrating an embodiment of the mobile device activation type of the present invention, and FIG. 2 is a configuration block diagram illustrating an example of a mobile communication network having an Internet connection function. In the figure, the mobile device 10 is a terminal device owned by the user, via a mobile communication network using CDMA (Code Division Multiple Access), GSM (General Standard for Mobile communication), PDC (Personal Digital Cellular), etc. It is possible to make calls and data communications with other mobile devices and landlines. The mobile device 10 has a function of measuring the frame error rate (FER) and the ratio (Ec / Io) of the pilot energy accumulated over the 1PN chip period to the total power spectrum density in the reception band. Furthermore, in the mobile device 10, the PN Offset (Pseudo random Noise Offset) and Ec / Io of the base station (active station, neighbor station, candy date station) used for handoff processing, and the transmission output of the mobile device (Mobile T x). It should have a function to measure Power [dBm]) and received electric field strength (RSSI [dBm]). Here, the PN code is a code sequence that randomly takes a value of ± 1 at a speed far exceeding the bit rate of the transmitted data, and has a periodicity of repeating a random bit pattern having a constant code length. Further, the mobile device 10 may be provided with a function of receiving a mobile device unique number and a GPS signal, and more preferably a function of calculating latitude, longitude and altitude from the GPS signal.

【0012】

The cellular infrastructure system 20 is composed of a base station and an exchange used for mobile communication, an optical fiber network connecting the base station and the exchange, a microwave network, and the like, and is a packet communication network which is a type of mobile communication network. Consists of. The cellular infrastructure system 20 includes a WAP gateway 24 that connects a mobile network and a WAP (Wireless Access Protocol) network, and a WAP proxy 26 that is a protocol conversion device for connecting the WAP network and other networks such as the Internet. I have.

【0013】

The positioning server 30 includes a base station database 31, a mobile device / location information database 33, a radio quality information database 35, a start request receiving means 34 for receiving a start request for a position information service transmitted from the mobile device 10, and the position information. When using the service, the location information / measured value receiving means 36 that receives the position information and the measured value of the radio quality of the mobile device 10 transmitted from the mobile device 10, and the area map 32 that receives the received position information and the measured value of the radio quality. It is equipped with a map expansion means 38 that expands above. The base station database 31 has the location information of the base stations of the cellular infrastructure system 20. In the mobile device / position information database 33, the position information at the time of linking of each mobile device 10 received by the position information / measured value receiving means 36 is registered. In the radio quality information database 35, the position information at the time of linking and the radio quality information of each mobile device 10 received by the position information / measured value receiving means 36 are registered together with the measurement time, and can be used by the map developing means 38. Offering.

【0014】

The content server 40 provides multimedia information to the mobile device 10 via a cellular infrastructure system 20 such as an Internet network 28, a WAP proxy 26, a WAP gateway 24, and a packet communication network. WAP (Wireless Application Protocol) and TCP While using communication protocols such as / IP (Transmission Control Protocol / Internet Protocol), the content is described in languages such as HDML (Handheld Device Markup Language), WML (Wireless Markup Language), and Compact HTML (Hyper Text Markup Language). There is. As a location information service, the content server 40 distributes area information near the base station, for example, information on public facilities, meeting places, convenience stores, restaurants, etc. to the mobile device 10 in the area. The location information service includes a format in which a request from the mobile device 10 is waited for delivery, a format in which the mobile device 10 is delivered when the mobile device 10 moves within the service area, and the like.

【0015】

The operation of the device configured in this way will be described below. FIG. 3 is a sequence diagram for explaining the transfer of mobile device-activated information. First, the mobile device 10 forms a link with the content server 40 (S100). Next, while the user of the mobile device 10 is performing the data communication service with the content server 40, the location information service is started (Fig. 2). Then, the mobile device 10 makes a start request to the positioning server 30 (S102). Subsequently, the mobile device 10 transmits the mobile device information and the radio quality information to the positioning server 30 (S104; FIG. 2). Subsequently, the mobile device 10 executes a positioning sequence and transmits positioning data (for example, a received GPS signal) to the positioning server 30 (S106; FIG. 2). The positioning server 30 calculates the latitude and longitude based on the transferred positioning data and transmits it to the mobile device 10 (S108; FIG. 2). If the mobile device 10 cannot receive GPS signals, the positioning server 30 processes the positional relationship information with the base station used by the mobile device 10 for handoff processing based on the principle of triangulation, and the location of the mobile device 10 is located. Calculate the position and send it to the mobile device 10.

【0016】

In addition, the positioning server 30 stores the calculated latitude and longitude of the mobile device 10 and the wireless quality information transmitted from the mobile device 10 in the wireless quality information database 35 (Fig. 2). Preferably, the mobile device 10 may transmit radio quality information to the positioning server 30 at appropriate intervals (S110). However, the transmission interval of wireless quality information should be set so as not to interfere with voice communication and data communication in the mobile device 10. Then, the mobile device 10 transmits the positioning data transferred in S108 to the content server 40 (S112). Then, the content server 40 provides an information service in the vicinity of the point where the mobile device 10 is located (S114).

【0017】

FIG. 4 is a diagram illustrating an example of a wireless quality information database. The wireless quality information database 35 includes a mobile device column 110, a current position column 120, a wireless communication quality column 130, and a base station column 140. The identification number of each mobile device, the terminal model, and the like are registered in the mobile device column 110. The latitude, longitude, altitude, etc. of each mobile device are registered in the current position column 120. In the wireless communication quality column 130, FER, PN (Offset), Ec / Io, state, received electric field strength, transmission output, and the like are registered.

【0018】

FIG. 5 is a configuration block diagram illustrating an embodiment of the general network activation type of the present invention. The content server 40 has a means 42 for instructing the start of the location information service for the cellular infrastructure system 20. The cellular infrastructure system 20 has a means 22 for requesting activation of a location information service for the mobile device 10.

【0019】

The operation of the device configured in this way will be described below. FIG. 6 is a sequence diagram for explaining the exchange of general network-activated information. First, the content server 40 instructs the cellular infrastructure system 20 to start the location information service (S200). The activation instruction may be given through the positioning server 30. Then, the cellular infrastructure system 20 requests the mobile device 10 to start the location information service (S202). Then, the mobile device 10 forms a link with the content server 40 (S204). Next, the mobile device 10 makes a start request to the positioning server 30 (S206). Subsequently, the mobile device 10 transmits the mobile device information and the radio quality information to the positioning server 30 (S208). Subsequently, the mobile device 10 executes the positioning sequence and transmits the positioning data (for example, the received GPS signal) to the positioning server 30 (S210). The positioning server 30 performs GPS calculation based on the transferred positioning data to calculate the latitude and longitude, and transmits the latitude and longitude to the mobile device 10 (S212). Subsequently, the mobile device 10 transmits the positioning data transferred by S212 to the content server 40 (S214). Then, the content server 40 provides an information service in the vicinity of the point where the mobile device 10 is located (S216).

【0020】

FIG. 7 is a configuration block diagram illustrating an embodiment of the dedicated server activation type of the present invention. The dedicated server 50 gives an instruction to start wireless quality measurement to the cellular infrastructure system 20 constituting the mobile communication network. The cellular infrastructure system 20 has a means 22 for requesting activation of radio quality measurement for the mobile device 10. In the dedicated server activation type, the activation instruction of the wireless quality measurement is given to the mobile devices 10 in general who do not use the location information service.

【0021】

The operation of the device configured in this way will be described below. FIG. 8 is a sequence diagram for explaining the exchange of information that is started by a dedicated server. The dedicated server 50 instructs the cellular infrastructure system 20 to start the wireless quality measurement (S300). Then, the cellular infrastructure system 20 requests the mobile device 10 to start the wireless quality measurement (S302). Then, the mobile device 10 forms a link with the positioning server 30 (S304). Next, the mobile device 10 transmits the mobile device information and the radio quality information to the positioning server 30 (S306). Subsequently, the mobile device 10 executes the positioning sequence and transmits the positioning data (for example, the received GPS signal) to the positioning server 30 (S308). The positioning server 30 performs GPS calculation based on the transferred positioning data to calculate the latitude and longitude, and transmits the latitude and longitude to the mobile device 10 (S310). Preferably, the mobile device 10 may transmit radio quality information to the positioning server 30 at appropriate intervals (S312).

【0022】

In the above embodiment, the mobile device activation type, the general network activation type, and the dedicated server activation type are shown as the types of activation instructions for the wireless quality measurement, but the present invention is not limited to this. For example, a voice-only terminal without a packet communication function or a terminal not making a call may be configured to be able to give an activation instruction for wireless quality measurement.

【0023】

[Effect of the invention]

As described above, according to the present invention, the activation request receiving means for receiving the activation request of the location information service transmitted from the mobile device communicating with the content server via the mobile communication network, and the location information. When using the service, the location information of the mobile unit transmitted from the mobile unit and the position information / measured value receiving means for receiving the measured value of the radio quality are provided, so that the area depends on the traffic amount like CDMA. It is suitable for performing detailed wireless quality measurement on a regular basis when the communication quality in the area fluctuates. Further, if the received position information and the measured value of the radio quality are expanded on the map, the measurement result can be quickly obtained on the area map.

【0024】

In addition, if the wireless quality measurement activation instruction is configured as a mobile device activation type, it becomes a natural one with less communication load for the mobile communication network, and the measurement rate is improved by popularizing terminals having a measurement activation instruction function. To do. If the activation instruction of wireless quality measurement is a general network activation type configuration, the content server that provides the location information service gives the activation instruction to the mobile device that has entered the area of the location information service. There is no need to prepare special facilities or equipment, and the cost is low. If the wireless quality measurement activation instruction is configured as a dedicated server activation type, the electrical measurement activation instruction is given not only to the mobile device using the location information service but also to other mobile devices during a call or standby. Therefore, it is possible to obtain a large amount of electrical measurement data as compared with the mobile device activation type and the general network activation type.

[Simple explanation of drawings]

[Figure 1]

It is a block diagram explaining one Embodiment of the mobile device start type of this invention.

[Figure 2]

It is a block diagram explaining an example of a mobile communication network having an Internet connection function.

[Fig. 3]

It is a sequence diagram explaining the transfer of information of a mobile device activation type.

[Fig. 4]

It is a figure explaining an example of a wireless quality information database.

[Fig. 5]

It is a block diagram explaining one Embodiment of the general network activation type of this invention.

[Fig. 6]

It is a sequence diagram explaining the transfer of information of a general network activation type.

[Fig. 7]

It is a block diagram explaining one Embodiment of the dedicated server start type of this invention.

[Fig. 8]

It is a sequence diagram explaining the transfer of information of a dedicated server start type.

[Fig. 9]

It is explanatory drawing of the conventional apparatus.

[Explanation of symbols]

10 mobile 20 Cellular infrastructure system 30 Positioning server 34 Start request receiving means 36 Location / measured value receiving means 38 Map expansion method 40 content server 50 Dedicated server