JPH11331183A - Radio communication system for raveling object - Google Patents

Abstract

PROBLEM TO BE SOLVED: To realize data communication with more radio terminals by efficiently allocating resources in a radio base station in a radio communication system for the traveling object having the configuration of connecting the radio terminal via the radio base station to the radio terminal for data communication. SOLUTION: Inside a radio base station 2, this radio communication system is provided with a means 3 for performing data communication with plural radio terminals 1 and 18, means 9 and 17 for performing data communication with plural protocols, means 7 and 15 for checking the idle states of resources to be used for the protocols, means 8 and 16 for acquiring the resources to be used for the protocols, means 5 and 13 for connecting data links, a means 10 for disconnecting the data link of the protocol under communication with the means for performing data communication and a means 12 for detecting the radio terminal capable of changing the protocol, so that the resources in the radio base station can be allocated efficiently.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mobile radio communication system having a configuration in which a radio terminal is connected to a radio terminal for data communication via a radio base station, using a plurality of radio terminals and a plurality of protocols. And a mobile communication system for performing data communication.

[0002]

2. Description of the Related Art In recent years, portable telephones and PHSs (Personal Han
2. Description of the Related Art Mobile wireless communication systems represented by a dy phone system) are widely used. In particular, digital wireless terminals are often used for purposes other than human conversation, such as data communication. There are many protocols for data communication, and depending on the protocol, a dedicated resource may be required. At that time, it is common to acquire the required resource and connect the data link.

FIG. 7 shows a configuration of a conventional radio base station. In the figure, 34 is a wireless terminal, 35 is a wireless base station, and this wireless base station 35 is a wireless inter-terminal communication means 36, a protocol detecting means 37, a protocol A data link connecting means 38, and a protocol A It comprises a data communication unit 39, a protocol A resource 40, a protocol A resource free state detection unit 41, and a protocol A resource acquisition unit 42.

[0004] A conventional data communication procedure with a wireless terminal will be described below with reference to FIG. FIG. 8 is a flowchart showing the flow of data communication in the wireless base station.

[0005] First, the radio base station 35 analyzes the call setting request from the radio terminal 34 by the protocol detecting means 37,
The wireless terminal 34 detects a protocol desired to be used (step 1). The wireless base station 35 connects the communication path by the wireless terminal communication means 36 (step 2). The wireless base station 35 receives the data link connection request from the wireless terminal 34 (Step 3). The radio base station 35 uses the protocol A
The free state of the resource is checked (step 4).
If there is a vacancy, the radio base station 35 acquires the resource 40 of the protocol A by the resource acquisition means 42 (step 5). When the resource is acquired, a data link connection response (connection OK) is issued to the wireless terminal 34 by the data link connection means 38 of protocol A, and the data link is connected (step 6). Protocol A when data link is connected
Data communication is performed by the data communication means 39 (step 7). If the resource cannot be acquired in step 4, the data link connection response (connection NG) is sent to the wireless terminal 34 by the data link connection means 38 of protocol A.
And the data link is not connected (step 8).

[0006]

However, in the mobile radio communication system, when a data link connection request is received from the radio terminal 34, it is not always possible to obtain resources required for the protocol. That is, in a situation where the radio base station 35 cannot prepare resources for the number of communication channels due to cost reduction or failure, etc., when the resources of the radio base station 35 are insufficient due to communication with other radio terminals, the When a data link connection request is received using a protocol that uses the resources being used, there is a problem that the data link connection becomes impossible due to lack of resources.

[0007] In view of the above-mentioned problems, an object of the present invention is to provide a mobile radio communication system capable of simultaneously performing data communication with more radio terminals by efficiently allocating resources in a radio base station. And

[0008]

In order to achieve the above object, the present invention provides a radio base station for performing data communication with a plurality of radio terminals, a means for performing data communication with a plurality of protocols, Means for checking the availability of resources used in the protocol, means for acquiring resources used in the protocol, means for connecting data links,
A mobile radio communication system includes means for performing data communication, means for disconnecting a data link of a protocol under communication, and means for detecting a radio terminal capable of changing the protocol.

According to the present invention, it is possible to simultaneously perform data communication with more wireless terminals by efficiently allocating resources in the wireless base station.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The invention described in claim 1 of the present invention is a mobile radio communication system having a configuration in which a radio terminal is connected to a data communication terminal via a radio base station, wherein the radio base station comprises: Means for performing data communication with a plurality of wireless terminals, means for performing data communication with a plurality of protocols,
Means for checking the availability of resources used in the protocol, means for acquiring resources used in the protocol, means for connecting a data link, means for performing data communication, and disconnecting the data link of the protocol being communicated And a means for detecting a wireless terminal capable of changing the protocol, wherein when a wireless terminal receives a data link connection request for a protocol for which resources are insufficient, data is transmitted using a protocol for which resources are insufficient. A mobile wireless communication system that disconnects the data link of another wireless terminal in communication and reconnects with another protocol to make available resources, and uses resources that are insufficient in the wireless base station from the wireless terminal When a data link connection request is received using a protocol that Cutting the Tarinku reconnected other protocols to allow connection by drilling resource has the effect of realizing a data communication with more wireless terminals.

According to a second aspect of the present invention, in the mobile radio communication system according to the first aspect, the radio base station gives “reason for release: protocol change” when disconnecting the data link. By doing so, it is possible to reconnect the data link by another protocol, and also has the effect of realizing data communication with more wireless terminals.

According to a third aspect of the present invention, in the mobile radio communication system according to the first aspect, the radio base station can be used with a partner terminal when connecting a data link. A protocol is detected and stored, and a wireless terminal whose protocol can be changed is selected by referring to the protocol. The wireless terminal can also perform data communication with more wireless terminals.

An embodiment of the present invention will be described below with reference to the drawings. (Embodiment 1) FIG. 1 is a block diagram showing a configuration of a radio base station in a mobile radio communication system according to Embodiment 1 of the present invention.

As shown in FIG. 1, this mobile radio communication system comprises a radio terminal A1, a radio terminal B18, and a radio base station 2, and the radio base station 2
Protocol detecting means 4, protocol A data link connecting means 5, protocol A resource 6, protocol A resource free state detecting means 7, protocol A resource acquiring means 8, and protocol A data communication Means 9 and data link disconnection means 10 for protocol A
A protocol holding means 11 usable by a wireless terminal currently communicating data, and a protocol changeable terminal detecting means 12
And a protocol B data link connection unit 13, a protocol B resource 14, a protocol B resource free state detection unit 15, a protocol B resource acquisition unit 16, and a protocol B data communication unit 17. .

FIG. 4 shows that the radio base station 2
1 shows a flow until a data link is connected to perform data communication.

First, the radio base station 2 analyzes the call setting request from the radio terminal A1 by the protocol detection means 4, and detects the protocol A that the radio terminal A1 wants to use (step 1). A communication path is connected by the wireless terminal communication means 3 (step 2). The wireless base station 2 is a wireless terminal A1
(Step 3). The radio base station 2 checks the availability of the protocol A resources by the protocol A resource availability detection means 7 (step 4). If there is a vacancy, the resource 6 of the protocol A is acquired by the resource acquiring means 8 (step 5). When the resource is acquired, a data link connection response (connection OK) is transmitted to the wireless terminal A1 by the data link connection means 5 of the protocol A, and the data link is connected (step 6). When the data link is connected, data communication is performed by the data communication means 9 of protocol A (step 7). If there is no free resource in step 4, the free state of the protocol B resource is checked by the protocol B resource free state detecting means 15 (step 8). If there is a vacancy, the protocol changeable terminal detecting means 12 detects the wireless terminal B18 which can use the protocol B from the protocol holding means 11 which can be used by the wireless terminal B18 (step 9). The data link with the wireless terminal B 18 is disconnected by the data link disconnecting means 10 of the protocol A (step 10). The protocol B resource 14 is acquired by the protocol B resource acquisition means 16 (step 1).
1).

When a data link connection request is received from the wireless terminal B18, the data link connection means 1 of protocol B
3 transmits a data link connection response (connection OK) to the wireless terminal B18, and the data link is connected (step 1).
2). When the data link is connected, the data communication is resumed by the data communication means 17 of protocol B (step 13). The resource of protocol A is acquired by the resource acquisition means 8 of protocol A (step 14). When the resource is acquired, a data link connection response (connection O) is sent to the wireless terminal A1 by the data link connection means 5 of protocol A.
K) and the data link connects (step 1)
5). When the data link is connected, data communication is performed by the data communication means 9 of protocol A (step 1).
6).

FIG. 2 is a block diagram showing the configuration of the radio base station and the configuration of the data link reconnection means in the embodiment of the present invention.

The radio communication system comprises a radio terminal 19 and a radio base station 2
0, and the radio base station 20
1, protocol A data link connection means 22, protocol A data communication means 23, data link disconnection reason notifying means 24, protocol A data link disconnection means 25, and protocol B data link connection means 26
And data communication means 27 of protocol B.

FIG. 5 shows a flow from the disconnection of the data link of the wireless terminal capable of data communication using another protocol to the resumption of data communication using another protocol in the embodiment of FIG. .

First, when transmitting a protocol A data link disconnection request to the wireless terminal 19, the radio base station 20 gives "release reason: change to protocol B" by the data link disconnection reason notifying means 24. (Step 1). A data link disconnection response (disconnection OK) is received from the wireless terminal 19 (step 2). A data link connection request of protocol B is received from the wireless terminal 19 (step 3). The radio base station 20 transmits a data link connection response (connection OK) to the radio terminal 19 by the data link connection means 26 of the protocol B, and the data link is connected (step 4). When the data link is connected, data communication is performed by the data communication means 27 of protocol B (step 5).

FIG. 3 is a block diagram showing a means for storing a protocol usable in the wireless terminal in the embodiment of FIG.

This is a wireless terminal 28 and a wireless base station 29
And the wireless base station 29
, A data link connection unit 31, an available protocol detection unit 32, and an available protocol storage unit 33.

FIG. 6 shows a flow until the protocol usable in the wireless terminal is stored in the embodiment of FIG.

First, the radio base station 29 receives a data link connection request from the radio terminal 28 (step 1). The wireless base station 29 analyzes the data link connection request by the available protocol detecting means 32 and detects a protocol name that can be used by the wireless terminal 28 (step 2). The usable protocol name is stored by the available protocol storage unit 33 (step 3).

[0026]

As is apparent from the above description, the present invention allows a radio base station in a mobile radio communication system to change a radio terminal using a protocol of a deficient resource to a protocol having a sufficient resource. By making the change, data communication with more wireless terminals can be realized.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a configuration of a radio base station in a mobile radio communication system according to a first embodiment of the present invention.

FIG. 2 is a block diagram showing a configuration of the wireless base station.

FIG. 3 is a block diagram showing a configuration of the wireless base station.

FIG. 4 is a flowchart showing a flow of data communication in the wireless base station.

FIG. 5 is a flowchart showing a flow of data communication in the wireless base station.

FIG. 6 is a flowchart showing a flow of data communication in the wireless base station.

FIG. 7 is a block diagram showing a configuration of a conventional radio base station.

FIG. 8 is a flowchart showing a flow of data communication in the wireless base station.

[Explanation of symbols]

 Reference Signs List 1 wireless terminal A 2 wireless base station 3 wireless terminal communication means 4 protocol detection means 5 protocol A data link connection means 6 protocol A resources 7 protocol A resource free state detection means 8 protocol A resource acquisition means 9 protocol A Data communication means 10 Protocol A data link disconnection means 11 Protocol storage means usable in wireless terminal 12 Protocol changeable terminal detection means 13 Protocol B data link connection means 14 Protocol B resources 15 Protocol B resource free state detection means 16 Resource acquisition means of Protocol B 17 Data communication means of Protocol B 18 Wireless terminal B 19 Wireless terminal 20 Wireless base station 21 Communication means between wireless terminals 22 Data link connection means of Protocol A 23 Data communication of Protocol A Means 24 Protocol A data link disconnection reason notifying means 25 Protocol A data link disconnecting means 26 Protocol B data link connecting means 27 Protocol B data communication means 28 Wireless terminal 29 Wireless base station 30 Wireless terminal communication means 31 Data link Connection means 32 Usable protocol detection means 33 Usable protocol storage means

──────────────────────────────────────────────────の Continued on the front page (51) Int.Cl. ⁶ Identification code FI H04Q 7/26 7/30

Claims (3)

[Claims] 1. A mobile radio communication system having a configuration in which a wireless terminal is connected to a wireless terminal for data communication via a wireless base station, wherein the wireless base station performs data communication with a plurality of wireless terminals. Means for performing data communication using a plurality of protocols, means for checking the availability of resources used in the protocol, means for acquiring resources used in the protocol, means for connecting a data link, and data communication. And means for disconnecting the data link of the protocol being communicated, and means for detecting a wireless terminal capable of changing the protocol. When it comes, it disconnects the data link of another wireless terminal that is currently performing data communication with the protocol that lacks resources, and reconnects with another protocol Mobile radio communication system is characterized in that so as to free up resources Te. 2. The wireless base station according to claim 1, wherein when the data link is disconnected, "reason for release: protocol change" is added to enable reconnection of the data link with another protocol. 2. The mobile radio communication system according to claim 1. 3. A wireless base station detects and stores a protocol usable with a partner terminal when connecting a data link, and selects a wireless terminal capable of changing the protocol by referring to the protocol. 2. The method according to claim 1, wherein
The mobile radio communication system according to claim 1.