KR100338637B1 - Apparatus for setting up a radio resource control call and releasing it in international mobile telecommunication-2000 of using general packet radio service and method thereof - Google Patents

Abstract

The present invention relates to a general packet radio service (GPRS) of the IMT-2000 mobile communication system, and more particularly, an apparatus for a mobile terminal and a base station according to the universal packet radio service (GPRS) to establish and release a call in a radio section; It's about how. In the present invention, in the case of a mobile terminal in the call setup, if a call setup request according to the GPRS is generated, a connection setup request message requesting connection setup to a radio resource control (RRC) layer is generated. Generate on the GMM layer and transmit to the radio resource control (RRC) layer to establish a radio resource control (RRC) layer connection; In case of a base station, if a connection establishment request message according to a connection establishment request is transmitted from a radio resource control (RRC) layer due to a call establishment request according to the general purpose packet radio service (GPRS), wireless transmission is performed according to the transmission of the connection establishment request message. Set up a resource control (RRC) layer connection, and generates and transmits a connection setup complete message for indicating completion of the radio resource layer (RRC) connection setup according to the connection setup result. In the case of a mobile terminal in call release, if a disconnect message according to a disconnect request is transmitted from a radio resource control (RRC) layer due to a call release request according to a general purpose packet radio service (GPRS), Release the RRC layer connection according to the transmission, and generate a disconnection completion instruction message on the RRC layer to indicate completion of disconnection according to the disconnection result. GMM) layer; In the base station, when a call release request according to the GPRS is generated, a release request message according to a release request of the radio resource control (RRC) layer connection is generated on the universal mobility management (GMM) layer. After transmitting to a control (RRC) layer, releasing a radio resource control (RRC) layer connection in response to the transmitted disconnect request message, and transmitting a disconnection completion message for indicating completion of the disconnection. It generates on the (RRC) layer and transmits to the universal mobility management (GMM) layer.

Description

Apparatus and method for establishing and releasing radio section call in general packet radio service of next generation high speed data mobile communication system METHOD THEREOF}

The present invention relates to a general packet radio service (GPRS) of the IMT-2000 mobile communication system. In particular, a mobile station and a base station according to the general packet radio service (GPRS) are used to establish a call in a radio section. An apparatus and a method for release are provided.

FIG. 1 shows the configuration of Layer 3 proposed in 3GPP in the proposal of the IMT-2000 mobile communication system. As the definition of the layer 3, signal processing between the mobile terminal and the network is performed, through which call establishment, release, and maintenance are performed. Its configuration is roughly divided into radio resource layer (RR), LLC layer, mobility management layer (MM), and connection operating layer (CM), which are interconnected as SAP. In FIG. 1, connection between internal components of each layer is omitted.

Meanwhile, in the case of the layer 3, in the case of establishing and releasing a Radio Resource Control (RRC) connection on an existing non-GPRS, an RRC connection is established on a GPRS recently proposed in an IMT-2000 mobile communication system. It can be seen that it is different from the release process.

This means that in case of non-GPRS, Connection Control (CM) / Mobility Management (MM) provides RRC events for establishing and releasing RRC connections, while in GPRS, RCM connections in CM / MM are related to establishing and releasing RRC connections. This is because no events are sent. That is, non-GPRS and GPRS are different from each other in providing events for establishing and releasing an RRC connection.

Due to the mutual differences in the disconnection on the RRC as described above, the process of establishing and releasing the RRC connection between the non-GRPS and the GPRS lacks uniformity, which is to establish and expand a mobile communication system having mutual compatibility and correlation in the future. Sex can be a problem.

Even at the time of filing of the present invention, the uniformity of the RRC connection establishment and release procedure between the non-GRPS and the GRPS has not yet been achieved from the standpoint of CM / MM of the third layer in the 3rd Generation Partnership Project (3GPP) during IMT-2000 standardization. have.

Accordingly, an object of the present invention is an apparatus for establishing and releasing a call for unifying the flow of messages according to establishing and releasing an RRC connection in a radio section of a non-GPRS and a GPRS in an IMT-2000 mobile communication system. In providing a method.

More specifically, an object of the present invention is to provide a call setup / release device and a method for unifying the flow of the message according to the RRC connection establishment and release in the GPRS radio interval in accordance with the non-GPRS.

In order to achieve these objects, the present invention, in the case of a mobile terminal in the call setup, if a call setup request according to the GPRS is generated, requesting the connection setup to the radio resource control (RRC) layer Generate a connection establishment request message on a universal mobility management (GMM) layer and transmit the connection establishment request message to a radio resource control (RRC) layer to establish a radio resource control (RRC) layer connection; In case of a base station, if a connection establishment request message according to a connection establishment request is transmitted from a radio resource control (RRC) layer due to a call establishment request according to the general purpose packet radio service (GPRS), wireless transmission is performed according to the transmission of the connection establishment request message. Set up a resource control (RRC) layer connection, and generates and transmits a connection setup complete message for indicating completion of the radio resource layer (RRC) connection setup according to the connection setup result. In the case of a mobile terminal in call release, if a disconnect message according to a disconnect request is transmitted from a radio resource control (RRC) layer due to a call release request according to a general purpose packet radio service (GPRS), Release the RRC layer connection according to the transmission, and generate a disconnection completion instruction message on the RRC layer to indicate completion of disconnection according to the disconnection result. GMM) layer; In the base station, when a call release request according to the GPRS is generated, a release request message according to a release request of the radio resource control (RRC) layer connection is generated on the universal mobility management (GMM) layer. After transmitting to a control (RRC) layer, and in response to the transmitted disconnect request message, releases a radio resource control (RRC) layer connection, and then releases a disconnection completion message for indicating completion of the disconnection. It generates on the (RRC) layer and transmits to the universal mobility management (GMM) layer.

1 is a diagram illustrating a configuration state of Layer 3 proposed in 3GPP in the proposal of an IMT-2000 mobile communication system to which the present invention is applied.

2 is a message flow diagram illustrating an RRC connection establishment procedure on a typical non-GPRS starting from a mobile terminal.

3 is a message flow diagram illustrating an RRC disconnection procedure on a typical non-GPRS originating from a mobile terminal.

4 is a message flow diagram illustrating an RRC connection establishment procedure on a typical GPRS starting from a mobile terminal.

5 is a message flow diagram illustrating an RRC connection establishment process on a GPRS starting from a proposed mobile terminal according to a preferred embodiment of the present invention.

6 is a message flow diagram illustrating an RRC connection release procedure on a typical GPRS starting from a mobile terminal.

7 is a message flow diagram illustrating an RRC connection release procedure on GPRS starting from a proposed mobile terminal according to a preferred embodiment of the present invention.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. First of all, in adding reference numerals to the components of each drawing, it should be noted that the same reference numerals have the same reference numerals as much as possible even if displayed on different drawings. Also, in the following description, many specific details such as components of specific circuits are shown, which are provided to help a more general understanding of the present invention, and the present invention may be practiced without these specific details. It is self-evident to those of ordinary knowledge in Esau. In the following description of the present invention, if it is determined that a detailed description of a related known function or configuration may unnecessarily obscure the subject matter of the present invention, the detailed description thereof will be omitted.

First, the configuration of the layer 3 that implements the present invention is the same as the configuration shown in FIG. 1, which also has the configuration of a pure software protocol.

Hereinafter, the following detailed description is made in the following three steps for a clear description of the present invention.

Firstly, the RRC connection establishment and release procedure on non-GRPS, secondly the RRC connection establishment and release procedure on the existing 3GPP GPRS, and finally the GPRS which introduced the non-GPRS concept according to the implementation of the present invention. RRC connection establishment and release procedure on the network. The third procedure is the implementation of the present invention, and the first second is the description of the normal connection establishment and release referenced in the description of the present invention.

The first case will be described with reference to FIGS. 2 and 3.

RRC connection on non-GPRS is done as follows. And the RRC connection on the non-GPRS consists of the establishment and release, it will be described separately.

First, in the setting, the setting of the RRC connection on the non-GPRS can be described in two aspects, which can be described as the case where the start of the setting is performed at the mobile terminal and at the base station. However, for the sake of convenience of explanation and in a conventional manner, starting setting on the mobile terminal will be described.

Referring to Figure 2, it can be seen the process of establishing the RRC connection on the non-GPRS starting from the mobile terminal.

As shown in FIG. 2, in order to transmit a message according to an outgoing call, a mobile station makes a request for setting from an upper layer to a lower layer in layer 3. Only when there is a response to the configuration request and the response is correct, a peer-to-peer message is exchanged.

In more detail, when the MMI receives an outgoing call request from the mobile terminal user, the MMI sends MNCC_SETUP_REQ as shown in FIG. 2 to the Call Control (CC). The CC cannot directly exchange messages between the CC of the base station and peer-to-peer. Therefore, the CC sends MMCC_EST_REQ to the MM. Since the MM also cannot directly exchange messages between the MM of the base station and the peer-to-peer, the MM sends RR_EST_REQ to the RRC.

In other words, RR_EST_REQ should be sent from MM in order to set up RRC Connection in non-GPRS.In addition, in order to communicate between peer-to-peers, it can be started from its parent (eg MM in RRC, CC and CC in MM). In this case, it is started by a message sent by MMI (Man Machine Interface). Its characteristics must be satisfied on GPRS to maintain the uniformity of connection establishment and release for the radio section between non-GPRS and GPRS.

Next, a description will be given in the release. There are two aspects to the release of RRC connections on the non-GPRS. Similar to the setting, it is the aspect of whether the release is started by the mobile terminal or the release is started by the base station. In the case of the release, the same description will be given based on starting from the mobile terminal as in the above setting. In GPRS, a normal terminal starts first.

The release of the RRC connection on the non-GPRS can be seen by referring to FIG. 3, which shows a call release process by the mobile terminal.

Referring to FIG. 3, in order to release a call from a mobile terminal, a release request is first made from an upper layer to a lower layer in layer 3. Only when there is an appropriate response to the release request, a peer-to-peer message is exchanged, and thus a phased release of the connection is performed.

In more detail, when MMI receives a call termination request from a mobile terminal user, MMIC_DISCONNECT_REQ message is sent to the CC. The mobile station CC performs a process of exchanging messages between the CC of the base station and the peer-to-peer, and as a result, the CC is released.

Then, the release result is informed by the mobile station and the base station CC to the lower MM as an MMCC_REQ_REQ message. In this case, the mobile station MM does not process the MMCC_REQ_REQ message as it is. It just waits for the RR_REL_IND message to tell RRC that the RRC connection has been released. However, the MM of the base station sends a release request to the base station RRC as an RR_REL_REQ message.

That is, in the above case, in order to release the RRC connection, the MM of the base station must send an RR_REL_REQ message to start. In addition, the mobile terminal can be known as notifying the MM that the upper CC and lower RRC connections have been released based on the MM in the release procedure.

RRC connection establishment and release procedure on GPRS of existing 3GPP according to the second and third steps in the above-described three steps, and RRC connection establishment and release procedure on GPRS, which introduced the non-GPRS concept according to the embodiment of the present invention. Look below.

First of all, the present invention performs RRC connection on GPRS incorporating the non-GPRS concept. RRC connection establishment and release on GPRS incorporating a non-GPRS concept according to an embodiment of the present invention will be described separately for establishment and release for the purpose of understanding the description of establishment and release. For reference, in the following description, connection establishment and release are proposed to achieve the purpose of having uniformity for RRC connection establishment and release from the standpoint of CM / MM on the RRC. This is accomplished by creating and using new messages that are not mentioned in the existing 3GPP in the practice of the present invention.

With reference to the accompanying Figures 4 and 5 looks at the existing GPRS setting process and the GPRS setting process introducing the non-GPRS concept according to the implementation of the present invention.

In the case of the accompanying FIG. 4, it shows a process of setting GPRS of 3GPP which is currently being standardized at the time of filing the present invention. It can be seen that this is similar to the call setup process on non-GPRS.

Referring to FIG. 4, the upper GMM or LLC assumes that the RRC connection has already been set up and proceeds with the setting process. This is a part where the difference from the non-GPRS described above is greatly generated. This is where the unity of non-GPRS and GPRS is combined.

Accordingly, in the practice of the present invention, a new message is created to request the GMM to establish an RRC connection. The delivery of the new message is shown in FIG.

The new message is proposed by applying characteristics of a message used for establishing an RRC connection between MM and RRC in non-GPRS. In the implementation of the present invention, a newly proposed message, that is, a message that satisfies the concept of non-GPRS, is the first "GMMRR_EST_REQ" message. This is defined as a message requesting the RRC connection establishment from GMM to RRC. Second is the "GMMRR_EST_CNF" message. This is defined as a message indicating that RRC connection setup is completed from RRC to GMM.

Connection establishment according to an embodiment of the present invention is made as the proposal of the two messages, specifically, a connection establishment procedure on GPRS as a non-GPRS concept can be made. As shown in FIG. 5, the RRC connection is established as the transmission and response of the two messages.

In FIG. 5, in the conventional case, a data message is transmitted to the LLC as soon as the GMM receives a configuration request message. However, the proposed two messages are not immediately transmitted when the GMM receives the configuration request message from the higher layer. In the present invention, an RRC Connection Setup Request message is first sent to the RRC. When the RRC connection setup is completed according to the RRC connection setup request sent by the GMM, the setup is performed by notifying the GMM as a message that the setup has been completed. When the process is performed, the process is performed as it is, as shown in FIG. 4.

Next, with reference to the accompanying Figures 6 and 7 looks at the release process of the existing GPRS and the release process of GPRS incorporating the non-GPRS concept according to the implementation of the present invention.

Referring to FIG. 6, the release process of GPRS in 3GPP can be known. Its characteristic is the fact that there is no message to inform the parent about RRC Connection release. This is a big difference from non-GPRS. In other respects it is similar to the call release process in non-GPRS.

After all, what can be solved by the fact that there is no such message is that the GMM can see why the RRC Connection is released. As we have seen the setting process described above, GMM needs to know the state of RRC Connection so that it can operate properly. In this case, when receiving a configuration message, which is a GPRS configuration request message from a higher level, the GMM may not know whether to set an RRC connection or send a message immediately. Accordingly, in order to know the fact, when the RRC connection is released in the RRC, this information should be informed to the GMM. In this case a definition of a new message is needed, which is the proposed message according to the practice of the present invention.

First, it defines a "GMMRR_REL_REQ" message, which is used at the base station and is defined as a message for the GMM to request RRC Connection release to RRC. Secondly, the "GMMRR_REL_CNF" message is used by the base station and is defined as a message to which the RRC responds when the RRC connection is released for the RRC connection release request requested by the GMM. Thirdly, it is defined as a message reporting from the RRC to the GMM that the RRC connection is released by using the terminal as a "GMMRR_REL_IND" message.

As shown in FIG. 7, when the base station requests the release of the RRC connection in the GPRS, the peer-to-peer communication between the GMMs is finished, and the base station GMM sends the RRC connection to the RRC of the base station. It is time to request the release procedure. As such, the RRCConnection release procedure on the GPRS is performed. After the RRC connection release procedure is completed, the procedure is performed in the same manner as the release procedure of GPRS as shown in FIG. 6.

Meanwhile, in the detailed description of the present invention, specific embodiments have been described, but various modifications are possible without departing from the scope of the present invention. Therefore, the scope of the present invention should not be limited to the described embodiments, but should be defined not only by the scope of the following claims, but also by the equivalents of the claims.

As described above, the implementation of the present invention always has information on the RRC connection establishment and release in the MM, so that the procedure for establishing and releasing the RRC connection between the non-GPRS and the GPRS is performed as a unified characteristic. This has the advantage of not requiring new RRC Connection settings.

In the non-GPRS case or the GPRS case, there is an advantage in that a command can be generated and managed in the same module for the same operation in the protocol structure.

Claims (20)

In the wireless section call setup apparatus of the mobile terminal according to the next generation high speed data mobile communication system (IMT-2000) general purpose packet radio service (GPRS), If a call establishment request according to the GPRS is generated, a connection establishment request message for generating a connection establishment request message on a universal mobility management (GMM) layer requesting connection establishment to a radio resource control (RRC) layer. A generation unit, A connection establishment request message transmitting unit configured to transmit the generated connection establishment request message to the radio resource control (RRC) layer; And a radio resource control layer connection setting unit for establishing a radio resource control (RRC) layer connection according to transmission of the connection establishment request message. The method of claim 1, wherein the connection establishment request message, And requesting to establish a radio resource control (RRC) connection from the universal mobility management (GMM) layer to the radio resource control (RRC) layer. In a method for establishing a wireless section call of a mobile terminal according to a next generation high speed data mobile communication system (IMT-2000) general purpose packet radio service (GPRS), If a call establishment request according to the GPRS is generated, a connection establishment request message for generating a connection establishment request message on a universal mobility management (GMM) layer requesting connection establishment to a radio resource control (RRC) layer. Creation process, A connection establishment request message transmission process of transmitting the generated connection establishment request message to the radio resource control (RRC) layer; And a radio resource control layer connection establishment process of establishing a radio resource control (RRC) layer connection according to transmission of the connection establishment request message. The method of claim 1, wherein the connection establishment request message, And requesting to establish a radio resource control (RRC) connection from the universal mobility management (GMM) layer to the radio resource control (RRC) layer. In the wireless section call setup apparatus of the base station according to the next generation high-speed data mobile communication system (IMT-2000) general purpose packet radio service (GPRS), When a connection establishment request message according to a connection establishment request is transmitted from a radio resource control (RRC) layer by a call establishment request generation according to the general purpose packet radio service (GPRS), radio resource control according to transmission of the connection establishment request message ( RRC) radio resource control layer connection setting unit for establishing a layer connection, A connection establishment completion message generation unit generating a connection establishment completion message for indicating completion of the radio resource layer (RRC) connection establishment according to a result of setting up the radio resource control layer connection; Apparatus, characterized in that consisting of a connection establishment complete message transmission unit for transmitting the generated connection establishment completion message to the universal mobility management (GMM) layer. The method of claim 5, wherein the connection establishment complete message, And a message requesting to establish a radio resource control (RRC) connection from the radio resource control (RRC) layer to the universal mobility management (GMM) layer. In a method for establishing a wireless section call of a base station according to a next generation high speed data mobile communication system (IMT-2000) general purpose packet radio service (GPRS), When a connection establishment request message according to a connection establishment request is transmitted from a radio resource control (RRC) layer by a call establishment request generation according to the general purpose packet radio service (GPRS), radio resource control according to transmission of the connection establishment request message ( RRC) radio resource control layer connection establishment process for establishing a layer connection, A connection establishment completion message generation process of generating a connection establishment completion message for indicating completion of the radio resource layer (RRC) connection establishment according to a result of the establishment of the radio resource control layer connection; And a connection establishment completion message transmission process of transmitting the generated connection establishment completion message to a universal mobility management (GMM) layer. The method of claim 7, wherein the connection setup complete message, And requesting to establish a radio resource control (RRC) connection from the radio resource control (RRC) layer to the universal mobility management (GMM) layer. In the wireless section call release device of the mobile terminal according to the next generation high speed data mobile communication system (IMT-2000) General Packet Radio Service (GPRS), When a disconnect message according to a disconnect request is transmitted from a radio resource control (RRC) layer due to a call release request generated by the GPRS, a radio resource control (RRC) according to the transmission of the disconnect message. A radio resource control (RRC) layer disconnection unit for releasing the layer connection; A disconnection completion instruction message generation unit for generating a disconnection completion instruction message on the radio resource control (RRC) layer to indicate completion of disconnection according to the radio resource control (RRC) layer disconnection result; And a disconnection completion instruction message transmission unit for transmitting the generated disconnection completion instruction message to the universal mobility management (GMM) layer. The method of claim 9, wherein the disconnect message, And the universal mobility management (GMM) layer requests to release a radio resource control (RRC) connection to the radio resource control (RRC) layer. The method of claim 9, wherein the disconnect completion instruction message, And reporting a release of radio resource control (RRC) connection from the radio resource control (RRC) layer to the universal mobility management (GMM) layer. In a method for releasing a wireless section call of a mobile terminal according to a next generation high speed data mobile communication system (IMT-2000) general purpose packet radio service (GPRS), When a disconnect message according to a disconnect request is transmitted from a radio resource control (RRC) layer due to a call release request generated by the GPRS, a radio resource control (RRC) according to the transmission of the disconnect message. A radio resource control (RRC) layer disconnection process for releasing a layer connection; A disconnection completion instruction message generation process of generating a disconnection completion instruction message on the radio resource control (RRC) layer to indicate completion of disconnection according to the radio resource control (RRC) layer disconnection result; And a disconnection completion instruction message transmission step of transmitting the generated disconnection completion instruction message to the universal mobility management (GMM) layer. The method of claim 12, wherein the disconnect message, And a message transmitted when the GMM layer at the base station requests to release the radio resource control (RRC) connection to the radio resource control (RRC) layer. The method of claim 12, wherein the disconnect completion instruction message, And reporting a release of radio resource control (RRC) connection from the radio resource control (RRC) layer to the universal mobility management (GMM) layer. In the radio section call release apparatus of the base station according to the next generation high speed data mobile communication system (IMT-2000) General Packet Radio Service (GPRS), When a call release request according to the GPRS is generated, a release request message is generated on a GMM layer, which releases a connection request message according to a release request of a radio resource control (RRC) layer. Wealth, A disconnection request message transmitter for transmitting the generated disconnection request message to the radio resource control (RRC) layer; A radio resource control layer disconnection unit for releasing a radio resource control (RRC) layer connection in response to the transmitted disconnect request message; A disconnection completion message generation unit generating a disconnection completion message on the radio resource control (RRC) layer to indicate completion of disconnection according to the radio resource control (RRC) layer disconnection result; And a disconnection complete message transmission unit for transmitting the generated disconnection completion message to the universal mobility management (GMM) layer. The method of claim 15, wherein the disconnect message, And the universal mobility management (GMM) layer requests to release a radio resource control (RRC) connection to the radio resource control (RRC) layer. The method of claim 15, wherein the disconnect complete message, And if the radio resource control (RRC) connection is released from the radio resource control (RRC) layer to the universal mobility management (GMM) layer, the radio resource control (RRC) connection release request. In the radio section call release method of the base station according to the next generation high speed data mobile communication system (IMT-2000) general purpose packet radio service (GPRS), When a call release request according to the GPRS is generated, a release request message is generated on a GMM layer, which releases a connection request message according to a release request of a radio resource control (RRC) layer. Process, A disconnection request message transmission step of transmitting the generated disconnection request message to the radio resource control (RRC) layer; A radio resource control layer disconnection process of releasing a radio resource control (RRC) layer connection in response to the transmitted disconnect request message; A disconnection complete message generation process of generating a disconnection completion message on the radio resource control (RRC) layer to indicate completion of disconnection according to a radio resource control (RRC) layer disconnection result; And a disconnection complete message transmission step of transmitting the generated disconnection completion message to the universal mobility management (GMM) layer. The method of claim 18, wherein the disconnect message, And a message for requesting release of a radio resource control (RRC) connection to the radio resource control (RRC) layer by the universal mobility management (GMM) layer. The method of claim 18, wherein the disconnect complete message, And if the radio resource control (RRC) connection is released from the radio resource control (RRC) layer to the universal mobility management (GMM) layer, the radio resource control (RRC) connection release request.