JPH0346835A - Mobile communication system - Google Patents

Abstract

PURPOSE:To eliminate the need for the installation of a radio base station at every area by providing certain waiting time to process plural reception signals from the same mobile station at the time of receiving a call or call response signal from one of plural incoming control channels having the same frequency. CONSTITUTION:When a mobile station 5 originates a call, the call signal is detected by a CRR 15a and CRR 15b since the mobile station 5 exists in areas 3a and 3b, and they inform an RP 18 reception. The RP 18 confirms whether an CRR which controls the signal of the same frequency channel as the CRR 15a exists or not to set the certain waiting time. Since the call signal of the mobile station 5 is detected by the CRR 15b also, the reception level of each sector is added to the received call signal and it is reported to an automatic telephone exchange. When the level received by the CRR 15b is higher than that received by the CRR 15a, the call is connected through the CRR 15b to set a voice line.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a mobile communication system in a wireless base station,
In particular, the present invention relates to a processing system for a radio base station control device when deploying a plurality of uplink control channels having the same frequency.

[Prior Art] As a conventional technique, a wireless base station has a plurality of uplink control channels having the same frequency and a single uplink control channel.

When a radio base station control device receives a call or a call response signal from a plurality of uplink control channels having the same frequency, it immediately reports it to the switching device.

[Problems to be Solved by the Invention] However, in the conventional radio base station in which a plurality of uplink control channels having the same frequency as described above and a single uplink control channel are installed, the radio base station control device This is because when a call or call response is received from one of the multiple uplink control channels with

Immediately after that, if another uplink control channel controller rjl (CRR) having the same frequency receives a call or a paging response from the same mobile station, even though the call or paging response is from the same mobile station, First, multiple reports were made to the switching equipment separately, so calls could not be made normally.

Therefore, in order to avoid this, it is necessary to change multiple uplink control channels that have the same frequency to individual frequencies and provide corresponding downlink control channels, or to change multiple uplink control channels that have the same frequency to individual frequencies. The disadvantage is that separate radio base stations must be placed for the area covered by the uplink control channel and the area covered by a single uplink control channel.

Therefore, one technical problem of the present invention is to solve the above drawbacks.

There is no need to separately change multiple uplink control channels having the same frequency to individual frequencies and provide multiple downlink control channels corresponding to each frequency. To provide a mobile communication system that does not require separate radio base stations for each area.

[Means for Solving the Problems] According to the present invention, in a sector configuration multi-channel access mobile communication system in which a plurality of uplink control channels having the same frequency and a single control channel are provided, means for transmitting a call from one of a plurality of uplink control channels, or for waiting for a call response for a certain period of time, and then reporting the received carrier level to the switching equipment; A mobile communication system is obtained which is characterized by having means for immediately reporting a call or a response to a call to a switching device.

[Example] Next, embodiments of the present invention will be described with reference to the drawings.

FIG. 1 is a diagram showing an example of a case where the wireless base station of this embodiment simultaneously controls an area with an omni configuration and an area with a sector configuration.

The radio base station 1 covers an area 2 with an omni configuration and an area 3 with a sector configuration, where the area 3 is composed of a sector area 3a and a sector area 3b. Mobile station 4 covers the area covered by area 2, mobile station 5 covers the area covered by areas 3a and 3b, and mobile station 6 covers the area covered by area 2. The vehicle is moving through areas covered by both areas 3a and 3b.

FIG. 2 shows an example of a configuration diagram of a channel control device in the wireless base station 1 for realizing FIG. 1.

The downlink control channel controller (CTR) 11 and the uplink control channel controller (CRR) 12 are
It controls the same frequency channel and covers Area 2. Audio channel control device (VCR) 13a ~
13n controls the audio channel within area 2. C
The TR14, CRR15a, and CRR15b control the same frequency channel, and the CTR14 controls the entire area 3, the CRR15a controls the area 3a, and the CRR15 controls the entire area 3.
b covers area 3b. VCR16a~16
n is in area 3a, VCR17a to 17n are in area 3
Controls the audio channel within b. The remote processor (RP) 18 uses CTRII, 14 to send a signal to the mobile station 4, 5.6, and CRR 12, 15a.
, 15b, the VCR 13a
-13n, 16a-16n, 1.7a-17n.

Suppose now that the mobile station 4 makes a call. Since the mobile station 4 exists within area 2, the CRR 12 detects the calling signal and reports the reception to the RP 18. Said CRR12
The RP 18 receives the call signal from the CRR.
Check whether there are any other CRRs that control signals on the same frequency channel as 12. Since there is no other CRR that controls signals on the same frequency channel as the CRR 12, the RP 18 determines that the received calling signal is a signal coming from the omni configuration area, and provides a certain waiting time. The information is sent to the car telephone exchange instead.

Next, assume that the mobile station 5 makes a call. Since the mobile station 5 exists within area 3a and area 3b, CRR1
5a and CRR15b detect the calling signal, and RP18
A reception report will be made to the recipient.

It is now assumed that the RP 18 has received a calling signal from the CRR 15a. The RP18 is the CRR15a
Check to see if there are any other CRRs that control signals on the same frequency channel.

The CRR 15b controls signals on the same frequency channel as the CRR 15a. Therefore, in the RP18,
The received calling signal is determined to be a signal coming from an area with a sector configuration, and since there is a possibility that the same signal comes from another sector, a certain waiting time is set.

Since the calling signal from the mobile station 5 is also detected by the CRR 15b, a reception report is made to the RP 18 within the waiting time. The RP 18 adds the reception level of each sector to the received calling signal and reports it to the mobile telephone exchange.

The level received by the CRR 15b is the level received by the CRR 15a.
If the level is greater than the level received at CRR15,
A call is made via VCRI 6a to 16n, and a voice line is set up using one of the VCRIs 6a to 16n.

Assume that the mobile station 6 makes a call. Is the mobile station 6 included in area 2 or area 3? Since the frequency channels used in area 3 are different, whichever channel is stronger is captured. When the mobile station 4 accesses the CRR 12 that controls area 2 in the omni configuration, the same procedure as when the mobile station 4 makes a call is made. The call is answered using the same procedure as when the station 5 makes the call.

[Effects of the Invention] As explained above, the present invention provides a control device for a wireless base station having a plurality of uplink control channels having the same frequency and a single uplink control channel. When a call or a call response signal is received from one of the mobile stations, multiple uplink control channels having the same frequency are separately and individually set by providing a certain waiting time and processing multiple receptions from the same mobile station. Change the frequency to
There is no need to provide multiple downlink control channels corresponding to each, and there is no need to install separate radio base stations for areas with multiple uplink control channels and areas with a single uplink control channel. .

[Brief explanation of drawings]

FIG. 1 is a diagram showing an example of a wireless base station according to an embodiment of the present invention that simultaneously controls an omni-configuration area and a sector-type area, and FIG. 2 is a wireless base station for realizing FIG. 1. FIG. 2 is a configuration diagram of a channel control device in FIG. 1... Wireless base station, 2... Area (omni configuration). 3... Area (sector configuration), 3a, 3b-0, sector area, 4, 5.6... Mobile station, 11... Downlink control channel controller (CTR) (area 2
), 12...uplink control channel control device (
CRR) (for area 2), 13a to 13n...Audio channel control device (VCR) (for area 2). 14・CTR (for area 3), 15a・CRR (for area 3a), 15b・CRR (for area 3b), 16a
~16n-VCR (for area 3a). 17 a ~ 17 n-VCR (for area 3b), 18
...Remote processor (RP). Figure 1 Figure 2 FroJTo MTSO

Claims (1)

[Claims] (1) In a sector-configured multi-channel access mobile communication system that deploys multiple uplink control channels having the same frequency and a single uplink control channel, uplink control of one of the multiple uplink control channels having the same frequency means for waiting for a call or paging response from another uplink control channel having the same frequency for a certain period of time in response to a call or paging response from the channel, and then reporting the received carrier level to the switching device; 1. A mobile communication system comprising means for immediately reporting to a switching device a call originating from an uplink control channel or a call response.