JPH05252090A - Radio channel reception state measurement control system - Google Patents

Abstract

PURPOSE:To relieve the operating rate of a control signal line between a radio base station and a radio transmission reception station and the processing load of the radio base station when reception state measurement control of a radio channel of a radio exchange system is implemented. CONSTITUTION:A radio base station 500 sends an averaging procedure (unit of averaging, number of times of averaging, calculation method of averaging) in an averaging procedure information memory 51 to each of radio transmission reception stations 300-302. Each of the radio transmission reception stations 300-302 uses a calculation section 32 to average the reception state measurement result of an outgoing radio channel of its own station and adjacent stations and the reception state measurement result of an incoming radio channel 200 reported from a mobile terminal equipment 100 for processing period, stores the averaged measurement result to a measurement result collection memory 33 and reports the result to a radio base station 500. The radio base station 500 uses a measurement result analysis section 52 to analyze the result of averaging measurement thereby implementing the optimization of incoming and outgoing radio channels and output control of the mobile terminal equipment 100 and the radio transmission reception stations 300-302.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wireless switching system in which a mobile terminal and a wireless base station connected to a wireless switching center communicate with each other via a wireless channel via a wireless transceiver station connected to the wireless switching center. The present invention relates to a radio channel reception state measurement control method.

[0002]

2. Description of the Related Art A conventional radio channel reception state measurement control method for a radio switching system of this type is such that a radio transmission / reception station reports a reception state measurement result of a downlink radio channel reported from a mobile terminal at a constant cycle and a neighboring radio transmission / reception. The reception state measurement result of the downlink radio channel from the station and the reception state measurement result of the uplink radio channel from the mobile terminal are reported to the radio base station at regular intervals. The radio base station analyzes the measurement results reported from the radio transceiver station according to the averaging procedure consisting of the unit of averaging managed in its own memory, the number of averagings and the averaging calculation method. The switching of wireless channels, the output control of the mobile terminal, and the output control of the wireless transceiver station are performed.

[0003]

In the above-mentioned conventional radio channel reception state measurement control method, the radio transmission / reception station reports the reception state measurement result of the radio channel to the radio base station at a constant cycle, and the radio base station transmits the radio wave. Since the measurement results of channel reception status are averaged and analyzed, the problem is that when the number of wireless channels used increases, the amount of control signal lines connecting between the wireless transceiver station and the wireless base station also increases. ,
There is a problem that the processing load of the wireless base station becomes large.

[0004]

According to the radio channel reception state measurement control method of the present invention, a mobile terminal and a radio base station connected to a radio switching center operate a radio transceiver station connected to the radio base station. In a radio channel reception state measurement control method of a radio switching system that communicates via a radio channel via the radio transmission / reception station, the radio transmission / reception station reports the reception state of a downlink radio channel from the mobile station, which is reported in a fixed cycle, and a neighborhood. Means for averaging the reception state measurement result of the downlink radio channel from the radio transceiver station and the reception state measurement result of the uplink radio channel from the mobile terminal according to an averaging procedure instructed by the radio base station; Means for temporarily accumulating the measured results and reporting to the radio base station, the radio base station storing means for storing the averaging procedure, and the stored Means for instructing the radio transceiver station of an equalization procedure, means for analyzing the measurement result from the radio transceiver station, and performing switching control of the radio channel and output control of the mobile terminal and the radio base station. I have it.

In the above structure, the averaging procedure may include a unit of averaging, the number of times of averaging, and a calculation method of averaging.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, the present invention will be described with reference to the drawings.

FIG. 1 is a block diagram showing an embodiment of the present invention. FIG. 2 is an averaging procedure transmission information diagram of the measurement result of the radio channel reception state instructed by the radio transmission / reception stations 300 to 302 from the radio base station 500 of the embodiment of FIG. Figure 3
FIG. 3A is an averaged measurement result transmission information diagram reported from the wireless transmission / reception station 302 of the embodiment of FIG. 1 to the wireless base station 500, and FIG. 3B is detailed information of information 811 of the neighboring wireless transmission / reception stations. FIG.

The radio base station 500 is connected to the radio exchange station 600 by a control signal line 400, and the radio transmission / reception station 30.
0, 301, 302 and control signal lines 410, 411, 41
They are tangent to each other at 2. This wireless base station 500
Includes an averaging procedure information memory 51 for storing the averaging procedure transmission information 800 (see FIG. 2) and a measurement result analysis unit 52, and stores the averaging procedure transmission information 800 stored in the averaging procedure information memory 51. It has a function of instructing the wireless transmission / reception stations 300 to 302. Each of the wireless transmission / reception stations 300 to 302 has a wireless transmission / reception unit 31, a calculation unit 32, and a measurement result collection memory 33, and each has a downlink wireless channel 21.
0, 211, and 212 are assigned. In addition, each of the radio transceiver stations 300 to 302 communicates with the mobile terminal 100 using the respective downlink radio channels 210 to 212 and the uplink radio channel 200, and obtains the averaged measurement result transmission information as shown in FIG. It has a function of reporting to the radio base station 500.

Next, the operation will be described. Wireless base station 500
The control signal line 410 sends the averaging procedure transmission information 800 to the wireless transceiver stations 300 to 302 when initializing the wireless transceiver stations 300 to 302 and changing the averaging procedure transmission information 800 in the averaging procedure information memory 51. Instruct through 412. When the mobile terminal 100 starts communication with the wireless transmission / reception unit 31 of the wireless transmission / reception station 302 by using the up radio channel 200 and the down radio channel 212, the reception level, reception quality, and reception of the radio channel 212 are periodically performed. Reception state measurement results such as delay time and the nearby radio transceiver station 30
0 and 301, and the reception state measurement results such as the reception levels of the downlink radio channels 210 and 211, and the radio transmission / reception station 302.
Report to. The radio transceiver station 302 receives the reception state measurement result reported from the mobile terminal 100 and the uplink radio channel 2
The reception state measurement results such as the reception level and reception quality of 00 are averaged by the calculation unit 32 according to the averaging procedure transmission information 800 instructed by the wireless base station 500. The averaging is performed by the averaging calculation method when the averaging unit transmission information 800 has been collected by the averaging unit. The averaging calculation result information is stored in the measurement information collection memory 33. This averaging is performed for the number of times of averaging, edited as averaging measurement result transmission information 810, and reported to the radio base station 500. The radio base station 500 analyzes the reported averaged measurement result transmission information 810 by the measurement result analysis unit 52, switches the uplink radio channel 200 or the downlink radio channel 212 to the optimum channel, and outputs the mobile terminal 100 as necessary. Control and output control of the wireless transmission / reception station 302 are performed.

[0010]

As described above, according to the present invention, in the wireless switching system having the mobile terminal, the averaging process of the reception state measurement result of the wireless channel, which is conventionally performed by the wireless base station, is performed by the wireless transceiver station. It is possible to reduce the usage rate of the control signal line between the radio base station and the radio transceiver station and reduce the processing load of the radio base station.

[Brief description of drawings]

FIG. 1 is a block diagram showing an embodiment of the present invention.

FIG. 2 is a diagram showing averaging procedure transmission information instructed by a wireless transmission / reception station from the wireless base station of the embodiment of FIG.

3A is a diagram showing averaged measurement result transmission information reported from the wireless transceiver station of the embodiment of FIG. 1 to a wireless base station, and FIG. 3B is a detailed information of its neighboring wireless transceiver stations. FIG.

[Explanation of symbols]

 31 wireless transmission / reception unit 32 calculation unit 33 measurement result memory 51 averaging procedure information memory 52 measurement result analysis unit 100 mobile terminal 200 upstream radio channel 210-212 downstream radio channel 300-302 wireless transmission / reception station 400, 410-412 control signal line 500 Wireless base station 600 Wireless switching center

Claims (2)

[Claims] 1. A radio channel reception state measurement control of a radio switching system in which a mobile terminal and a radio base station connected to a radio switching station communicate by radio channels via a radio transceiver station connected to this radio base station. In the method, the wireless transmission / reception station, a reception state measurement result of a downlink radio channel from the mobile station, which is reported in a fixed cycle from the mobile terminal, and a reception state measurement result of a downlink radio channel from a neighboring radio transmission / reception station, Means for averaging the reception state measurement result of the uplink radio channel from the mobile terminal according to an averaging procedure instructed by the radio base station, and means for temporarily accumulating the averaged measurement result and reporting to the radio base station. And a means for storing the averaging procedure,
Means for instructing the wireless transceiver station of the stored averaging procedure, analyzing the measurement result from the wireless transceiver station, and performing switching control of the wireless channel and output control of the mobile terminal and the wireless base station. A wireless channel reception state measurement control method, comprising: 2. The wireless channel reception state measurement control method according to claim 1, wherein the averaging procedure includes an averaging unit, an averaging count, and an averaging calculation method.