JP2852062B2 - Reserved connection method in mobile communication - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to an improvement in a call connection method in mobile communication.

(Problems to be Solved by the Related Art and the Invention) Generally, in the current mobile communication, when there is no idle communication channel in response to a connection request by a call from a mobile station, a lockout signal is transmitted to the mobile station. To notify the connection busy.

However, on the mobile station side, if you really want to contact the other party or if you want to talk for a short time,
Even if the call fee is high, there is a demand that a reservation be made and a connection be made as soon as the call channel becomes available.

An object of the present invention is to provide a reservation connection method in mobile communication that can satisfy the above-mentioned requirements.

(Means for Solving the Problems) The present invention provides a radio base station having a plurality of communication channels, arranged in each zone, a plurality of mobile stations performing communication using the communication channels, and a plurality of mobile stations. And a radio network controller that controls the radio base station. In a mobile communication system that performs communication by allocating an empty communication channel when there is a call request from the mobile station or when there is an incoming call to the mobile station. The mobile station has a reserved connection transmitting means for requesting a reserved connection in addition to the normal transmitting function, the radio base station has a reservation managing means for the reserved connection request, and the radio network controller performs the reserved connection. It has position management means for performing position management of the requested mobile station for each zone, and when there is no idle communication channel in response to a reservation connection request from the mobile station, when the position management of the mobile station is performed as a connection reservation state Both Monitoring the idle communication channel in the zone where the mobile station is located, and notifying the mobile station when the communication channel becomes free in the zone to which the mobile station currently belongs, and performing a call connection from the mobile station. In this way, when the mobile station moves to another zone in the connection reservation state, the mobile station reports a position change to the radio base station of the other zone, and the radio base station of the other zone reports that the position has been changed. To the radio network controller, and the radio network controller receiving the report performs a position change report to the radio base station in the zone where the mobile station was previously located, and ends the reservation management operation, and Mobile communication characterized in that a radio base station in another zone performs reservation management of a mobile station by reporting a reservation call registration to a radio base station in another zone and requesting a reservation management operation. Reservation connection in It is the law.

(Example) Hereinafter, an Example is described with reference to drawings.

FIG. 1 is an overall configuration diagram of a mobile communication system to which the present invention is applied. MSS is a mobile station, MBS1 to 3 are radio zones RZ1 to RZ3.
(Not shown), a radio base station, MCS is a radio network controller, and AMS is a dedicated exchange. C-CH1 to 3 are station control channels, D-CH is a data channel, S-CH1 to
Reference numeral 3 denotes a communication line group assigned to each zone. Here, the mobile station has, in addition to a normal transmission function, a reserved connection transmitting means for a reserved connection request to be described later. Each wireless base station has a reservation management unit as a unit corresponding to the reservation connection transmission unit. Further, the radio network controller has a location management means for the mobile station that functions when the reservation connection request is made.

FIG. 2 shows an example of a reservation connection flow according to the present invention,
The operation will be described with reference to FIG.

When the mobile station receives the notification of the connection busy for the normal call, the mobile station makes the reserved connection transmitting means function by a predetermined operation, and transmits a reserved transmission signal for displaying the reserved connection request.
It transmits to the wireless base station (for example, MBS1) in the zone located at the time of reservation transmission on the common control channel A-CH. That is, since the reservation transmission signal also has the zone number where the mobile station exists, the radio base station MBS1 identifies this zone number to determine that it is a reservation transmission signal for the own station. The zone number is automatically included in the outgoing signal when the mobile station originates a call by using a known method, for example, a multi-station simultaneous sequential transmission method, regardless of which zone the mobile station is in.

In the radio base station MBS1, in response to the received reservation transmission signal, if there is an idle communication channel, the idle communication channel is first secured, the normal transmission acceptance is notified to the mobile station MSS, and the ordinary transmission connection is executed.

If there is no idle communication channel, the radio base station MBS1 starts reservation management based on the reservation management means, transmits a reservation transmission acceptance to the mobile station MSS, and moves to the mobile station MSS between zones. Initiate a location change reporting operation to report a location change to the radio base station in the new zone,
A reservation call position management request is transmitted to the radio network controller MCS.
Here, for example, when the mobile station MSS reports a position change to the radio base station MBS2, the radio base station MBS2 reports this to the radio network controller MCS. Upon receiving the position change report from the radio base station MBS2, the radio network controller MCS reports the position change to the radio base station MBS1 and reports the reservation call registration to the radio base station MBS2 based on the position management means. Request a reservation management operation.

On the other hand, in the radio base station MBS1, when receiving the position change report from the radio network controller MCS by the reservation management operation, the management operation ends. However, if there is no change in location and an idle call channel occurs, the call channel is reserved, a reserved call is transmitted to the radio network controller MCS, and a reserved call connection start is transmitted to the mobile station MSS to perform a call connection operation. To start.

When receiving a position change report from the radio base station MBS2 during the reserved call position management operation, the radio network controller MCS performs the above operation and continues the management operation. Then, upon receiving the reserved call transmission, the management operation is terminated, the reserved transmission is transmitted to the dedicated exchange AMS, and the transmission connection process is started.

When the mobile station MSS shifts to another zone during the position change report operation, the mobile station MSS identifies the change and reports the position change to the radio base station MBS2 in the new zone as described above, and further notifies the start of the reservation transmission connection. This operation is repeated until comes.
Then, upon receiving the reservation transmission connection start, the position change report operation is terminated and the transmission connection processing is started.

In addition, the radio base station MBS2 relays the above-mentioned position change report to the radio network controller MCS, and upon receiving a reservation call registration from the radio network controller MCS, all the dial information for transmission in the received signal. Remember and start reservation management.

By the above operation, the mobile station that wants to be contacted by all means can have the connection process executed preferentially as soon as the communication channel becomes available in the latest zone by the reservation operation.

(Effects of the Invention) As described above, according to the present invention, a call can be made when a call channel becomes vacant by performing a reservation operation even when there is no vacancy in the call channel.

[Brief description of the drawings]

FIG. 1 is a diagram showing a configuration example of a mobile communication system to which the present invention is applied, and FIG. 2 is a flowchart for explaining a reservation connection method according to the present invention. In the figure, MSS is a mobile station, MBS1 to 3 are radio base stations, MCS is a radio network controller, and AMS is a dedicated exchange.

──────────────────────────────────────────────────続 き Continued from the front page Examiner Masaaki Suzuki (56) References JP-A-58-90838 (JP, A) JP-A-62-95031 (JP, A) JP-A-2-34045 (JP, A) JP-A-1-189240 (JP, A) (58) Fields investigated (Int. Cl. ⁶ , DB name) H04B 7/24-7/26

Claims (1)

(57) [Claims] 1. A wireless base station having a plurality of communication channels and arranged in each zone, a plurality of mobile stations performing communication using the communication channels, and a wireless line controlling the plurality of wireless base stations. In a mobile communication system configured with a control station and performing communication by allocating an empty communication channel when there is an outgoing call request from the mobile station or an incoming call to the mobile station, the mobile station performs a normal outgoing call. In addition to the function, the wireless base station has a reservation connection transmitting means for making a reservation connection request, the radio base station has a reservation management means for the reservation connection request, and the radio network controller performs position management of the mobile station which has requested the reservation connection. It has a location management means for each zone, and when there is no idle communication channel in response to a reservation connection request from a mobile station, performs location management of the mobile station as a connection reservation state, and sets a zone where the mobile station exists. Monitoring the idle communication channel in the mobile station, notifying the mobile station when the communication channel becomes free in the zone to which the mobile station currently belongs, and performing a call connection from the mobile station; When moving to another zone in the reservation state, report the position change to the radio base station of the other zone,
The radio base station in the other zone reports to the radio network controller that the position has been changed, and the radio network controller receiving the report sends the radio base station to the radio base station in the zone where the mobile station was previously located. Performs a location change report to end the reservation management operation, and reports a reservation call registration to the radio base station in the other zone to request the reservation management operation, whereby the radio base station in the other zone moves. A reservation connection method in mobile communication, wherein reservation management of a station is performed.