WO2012171277A1

WO2012171277A1 - Method and system for processing terminal service

Info

Publication number: WO2012171277A1
Application number: PCT/CN2011/079566
Authority: WO
Inventors: 杨金星
Original assignee: 中兴通讯股份有限公司
Priority date: 2011-06-15
Filing date: 2011-09-13
Publication date: 2012-12-20
Also published as: CN102833781B; CN102833781A

Abstract

Disclosed is a method for processing a terminal service, including: after having detected a radio link control (RLC) unrecoverable error occurring on the radio bearer (RB) of a data service, a terminal sending a radio resource control (RRC) message to a radio network controller (RNC); and after having received the RRC message, the RNC releasing the RB where the RLC unrecoverable error has occurred or reallocating the RB where the RLC unrecoverable error has occurred. Also provided is a system for processing a terminal service. The technical solution of the present invention can decrease the dropped call probability of the single data service, and solve the problem of dropped calls in the voice service where there is a plurality of concurrent services.

Description

Method and system for processing terminal service

The present invention relates to Wideband Code Division Multiple Access (WCDMA) technology, and in particular, to a terminal service processing method and system. Background technique

The research and development of WCDMA systems has greatly promoted the wireless application of data services. In WCDMA systems, wireless networks provide reliable data transmission over the Radio Link Control (RLC) protocol. The RLC protocol is a two-way full-duplex protocol. When the data sent by the sender is always unacknowledged, the sender sends an RLC reset (Reset) message to the receiver, requesting the receiver to perform an RLC layer reset. When the reset message is always unable to respond. The RLC layer sends an RLC layer protocol error indication to the upper layer.

In a WCDMA system and an LTE system, each Radio Bearer (RB) is carried by an RLC instance. If the terminal receives the RLC layer protocol error indication, two processing methods are provided according to the configuration of the T314 and T315 parameters: The first method is that the terminal releases all bearers and turns the terminal state to idle (IDLE); The terminal is changed from the CELL_DCH state to the CELL_FACH state, and the radio network controller (RNC, Radio Network Controller) related abnormality is notified by a cell update message carried by a random access channel (RACH) channel. The reason for the message carried in the RLC layer is the RLC Un-recover Error, and the failed RB is also available. Because the terminal becomes the CELL_FACH state, other concurrent services such as voice are affected, and the data cannot be continuously transmitted. .

Therefore, the current protocol processing method is reasonable and effective for a single service. However, for concurrent services, especially in the scenario where voice and data services are concurrent, the RLC of the data service RB does not occur. The recoverable error causes the voice service to follow the failed scenario, causing unnecessary voice service dropped calls. With the popularity of smart terminals, concurrent services have become a frequent occurrence, and mainstream operators and equipment vendors are considering the quality assurance of voice services when voice concurrent data services. Summary of the invention

In view of the above, the main purpose of the present invention is to provide a method and system for processing a terminal service, which can reduce the probability of dropped calls of a single data service and solve the problem of dropped calls of voice services in multiple service scenarios.

In order to achieve the above object, the technical solution of the present invention is achieved as follows:

The present invention provides a method for processing a terminal service, including:

When the terminal detects that the radio bearer (RB) of the data service has a radio link control (RLC) unrecoverable error, it sends a radio resource control (RRC) message to the radio network controller (RNC); after receiving the RRC message, the RNC release occurs. RLC cannot recover erroneous RBs or reconfigure RBs that have RLC unrecoverable errors.

In the above method,

The RRC message carries an identifier of an RB in which an RLC unrecoverable error occurs and a message cause; the RRC message is an extended cell update (cell update) carried on an uplink dedicated channel (DCH) or an uplink enhanced dedicated channel (E-DCH) The message, or the RRC message is a defined new uplink RRC message carried on the uplink DCH or the uplink E-DCH.

In the above method, after receiving the RRC message, the RNC releases the RB in which the RLC unrecoverable error occurs:

After receiving the RRC message sent by the terminal, the RNC sends an RB release message to the terminal, where the RNC carries the identifier of the RB that needs to release the RLC unrecoverable error, and only releases the RLC unrecoverable error. RB.

In the above method, after receiving the RRC message, the RNC releases the RB in which the RLC unrecoverable error occurs: After receiving the RRC message sent by the terminal, the RNC sends an RRC connection release message to the terminal to release the entire RRC connection.

In the above method, after receiving the RRC message, the RNC reconfigures the RB in which the RLC unrecoverable error occurs:

After receiving the RRC message sent by the terminal, the RNC sends an RB reconfiguration message to the terminal, where the RB reconfiguration message carries the identifier of the RB that needs to be reconfigured to generate an RLC unrecoverable error. Reconfigure RBs that have RLC unrecoverable errors.

The present invention further provides a processing system for a terminal service, including: a terminal and an RRC; wherein, the terminal is configured to send an RRC message to the RNC when the RLC of the data service is detected to have an RLC unrecoverable error;

The RNC is configured to release the RB that has an RLC unrecoverable error or retransmit the RB that has an RLC unrecoverable error after receiving the RRC message.

In the above system,

The RRC message carries the identifier of the RB that generates the RLC unrecoverable error and the message reason; the RRC message is an extended cell update message carried on the uplink DCH or the uplink E-DCH, or the RRC message is carried in the uplink DCH. Or a new uplink RRC message defined on the uplink E-DCH.

In the above system, after receiving the RRC message, releasing the RLC unrecoverable error occurs.

RB is:

In the above system, after receiving the RRC message, the RB that releases the RLC unrecoverable error is:

If the terminal is a single data service, the RNC receives the RRC message sent by the terminal, and then sends the RRC message to the terminal. The RRC connection release message is sent, and the entire RRC connection is released.

In the above system, after receiving the RRC message, the RB that reconfigures the RLC unrecoverable error is:

The method and system for processing a terminal service provided by the present invention, when the terminal detects that an RLC unrecoverable error occurs in the RB of the data service, the terminal sends a radio resource control (RRC, Radio Resource Control) message to the RNC; after receiving the RRC message, the RNC release occurs. RLC can not recover the wrong RB or reconfigure the RB with the RLC unrecoverable error. It can save the failure of the single data service and reduce the drop probability of the single data service. For concurrent services, it can effectively reduce the data service. The RB has a drop probability of other services caused by the RLC unrecoverable error. If it is a scenario of voice concurrent data services, it can also ensure that high-priority user voice services will not be dropped, giving users a good experience. DRAWINGS

1 is a schematic flowchart of a method for processing a terminal service according to the present invention;

2 is a schematic flowchart of Embodiment 1 of a method for processing a terminal service according to the present invention; FIG. 3 is a schematic flowchart of a second embodiment of a method for processing a terminal service according to the present invention; FIG. 5 is a schematic flowchart of Embodiment 4 of a method for processing a terminal service according to the present invention; FIG. 6 is a schematic structural diagram of a processing system for implementing a terminal service according to the present invention. detailed description

The basic idea of the present invention is: when the terminal detects that the RB of the data service has an RLC unrecoverable error, it sends an RRC message to the RNC; after receiving the RRC message, the RNC releases the RLC. Unrecoverable erroneous RBs or recombination RBs with RLC unrecoverable errors.

The invention will be further described in detail below with reference to the drawings and specific embodiments.

The present invention provides a method for processing a terminal service. FIG. 1 is a schematic flowchart of a method for processing a terminal service according to the present invention. As shown in FIG. 1, the method includes the following steps:

Step 101: When the terminal detects that the RLC of the data service fails to recover, the RRC message is sent to the RNC.

Specifically, in the WCDMA system, the terminal has a single data service or multiple services concurrently. When the terminal detects that the RB of the single data service has an RLC unrecoverable error or the RB of the data service in the multiple service has an RLC unrecoverable error. The terminal sends an RRC message to the RNC, where the RRC message carries the identifier of the RB in which the RLC unrecoverable error occurs and the message reason (the RLC unrecoverable error); the RRC message is an uplink RRC message, that is, the bearer is in the uplink dedicated channel ( The RRC message on the DCH, the Dedicated Channel is the RRC message carried on the Enhanced Dedicated Channel (E-DCH). Here, the uplink RRC message may be an extended cell update message or a new definition. The uplink RRC message; wherein the extended cell update message can be implemented by extending the bearer channel of the current cell update message, so that the extended cell update message can be carried on the uplink DCH or E-DCH, and sent by the terminal to the RNC. ; The new uplink RRC message defined may be an RRC uplink error indication message The message carried on the uplink DCH or E-DCH, sent by the terminal to the RNC.

Step 102: After receiving the RRC message, the RNC releases the RB that has an RLC unrecoverable error or reconfigures the RB that has an RLC unrecoverable error.

Specifically, if the RRC message is sent by the terminal, the RNC sends an RB release message to the terminal, where the RN release message carries the identifier of the RB that needs to release the RLC unrecoverable error, and is used for the RRC message sent by the terminal. Only the RB that generates the RLC unrecoverable error is released, or the RNC sends an RB reconfiguration message to the terminal, where the RB reconfiguration message carries a heavy weight Configuring an RB with an RLC unrecoverable error to re-allocate only the RBs that have an RLC unrecoverable error;

If the RNC receives the RRC message sent by the terminal, the RNC sends an RRC connection release message to the terminal to release the entire RRC connection. This is because the terminal has a single data service, that is, only one service task. Therefore, only one service task can be released. Therefore, releasing the entire RRC connection is equivalent to releasing the RB that has an RLC unrecoverable error, or the RNC sends an RB reconfiguration message to the terminal, where the RB reconfiguration message carries the reconfiguration and the RLC is not available. The identifier of the erroneous RB is recovered, and is used to reconfigure the RB in which the RLC unrecoverable error occurs.

Embodiment 1

2 is a schematic flowchart of Embodiment 1 of a method for processing a terminal service according to the present invention. The specific implementation method for releasing the entire RRC connection when the terminal is a single data service and the RB has an RLC unrecoverable error, as shown in FIG. 2, The method includes the following steps:

Step 201: When the terminal has a service requirement, establish an RRC connection with the RNC.

Step 202: The terminal establishes a data service with the RNC, and the ID of the RB is A.

Step 203: The terminal performs data transmission by using the RB and the RNC.

Step 204: The RLC unrecoverable error occurs in the uplink RB of the terminal due to the poor quality of the radio signal, and the terminal notifies the RNC of the abnormality by using the RRC uplink error indication message, where the RRC uplink error indication message carries the RB with the RLC unrecoverable error. The ID and message reason, for example, the message content for RB "A" has an RLC unrecoverable error.

Step 205: After receiving the RRC uplink error indication message sent by the terminal, the RNC sends an RRC connection release message to the terminal, and releases the entire RRC connection.

Step 206: After receiving the RRC connection release message sent by the RNC, the terminal returns an RRC connection release complete message to the RNC.

Embodiment 2

3 is a schematic flowchart of Embodiment 2 of a method for processing a terminal service according to the present invention, which is When the terminal is a single data service and the RB has an RLC unrecoverable error, the RB is reconfigured to generate an RLC unrecoverable error. As shown in FIG. 3, the method includes the following steps: Step 301: When the terminal has a service requirement, Establish an RRC connection with the RNC.

Step 302: The terminal establishes a data service with the RNC, and the ID of the RB is A.

Step 303: The terminal performs data transmission by using the RB and the RNC.

Step 304: The RLC unrecoverable error occurs in the uplink RB of the terminal due to the poor quality of the radio signal. The terminal notifies the RNC of the abnormality by using the RRC uplink error indication message, where the RRC uplink error indication message carries the RB with the RLC unrecoverable error. The ID and message reason, for example, the message content for RB "A" has an RLC unrecoverable error.

Step 305: After receiving the RRC layer uplink error indication message from the terminal, the RNC sends an RB reconfiguration message to the terminal to reconstruct or reset the RLC layer.

Step 306: After receiving the RB reconfiguration message from the RNC, the terminal returns an RB reconfiguration complete message to the RNC.

Step 307: After the reconfiguration succeeds, the data transmission between the terminal and the RNC returns to normal.

Embodiment 3

4 is a schematic flowchart of Embodiment 3 of a method for processing a terminal service according to the present invention. When a terminal concurrently sends multiple services and an RLC unrecoverable error occurs, only the RBs that generate an RLC unrecoverable error are released, so that other RBs can still be normal. A specific implementation method for transmitting data, as shown in FIG. 4, the method includes the following steps:

Step 401: When the terminal needs a service, establish an RRC connection with the RNC.

Step 402: The terminal establishes a packet domain data service with the RNC, and the ID of the RB is A. Step 403: The terminal establishes a second service with the RNC, and the ID of the RB is B, and the second service may be a circuit domain service or a packet domain service.

Step 404: The terminal performs data transmission with the RNC through RB "A" and RB "B". Step 405, the terminal uplink RB "A" occurs RLC due to poor radio signal quality, and the like. The unrecoverable error is sent to the RNC by the RRC uplink error indication message, where the RRC uplink error indication message carries the ID of the RB in which the RLC unrecoverable error occurs and the message reason. For example, the message content is RB "A". RLC cannot recover errors.

Step 406: After receiving the RRC uplink error indication message sent by the terminal, the RNC sends an RB release message to the terminal, where the RB release message carries the identifier of the RB that needs to release the RLC unrecoverable error, and only releases the RB that has the RLC unrecoverable error. "A".

Step 407: After receiving the RB release message sent by the RNC, the terminal returns an RB release completion message to the RNC. After the RB release is completed, the data of the RB "B" between the terminal and the RNC can still be normally transmitted.

Embodiment 4

5 is a schematic flowchart of Embodiment 4 of a method for processing a terminal service according to the present invention. When a terminal concurrently sends multiple services and an RLC unrecoverable error occurs, only the RBs that generate an RLC unrecoverable error are re-allocated, so that all RBs can be normal. A specific implementation method of transmitting data, as shown in FIG. 5, the method includes the following steps:

Step 501: When the terminal has a service requirement, establish an RRC connection with the RNC.

Step 502: The terminal establishes a packet domain data service with the RNC, and the ID of the RB is A;

Step 503: The terminal establishes a second service with the RNC, and the ID of the RB is B, and the second service may be a circuit domain service or a packet domain service.

Step 504: The terminal performs data transmission with the RNC through RB "A" and RB "B". Step 505: The RLC unrecoverable error occurs in the uplink RB "A" of the terminal due to the poor quality of the radio signal, and the terminal notifies the RNC of the abnormality by using the RRC uplink error indication message, where the RRC uplink error indication message carries the RLC unrecoverable. The wrong RB ID and message reason, for example, the message content RB "A" has an RLC unrecoverable error.

Step 506: After receiving the RRC uplink error indication message sent by the terminal, the RNC sends an RB reconfiguration message to the terminal, where the RB reconfiguration message carries the reconfiguration required to generate the RLC unrecoverable error. The identifier of the erroneous RB is only reconfigured with the RB "A" in which the error occurred, and the RLC layer of the RB "A" is reconstructed or reset.

Step 507: After receiving the RB reconfiguration message sent by the RNC, the terminal returns an RB reconfiguration complete message to the RNC.

Step 508, after the RB reconfiguration is completed, the data of the RB "A" and the RB "B" between the terminal and the RNC can be normally transmitted.

The present invention further provides a processing system for a terminal service, and FIG. 6 is a schematic structural diagram of a processing system for implementing a terminal service according to the present invention. As shown in FIG. 6, the system includes: a terminal 61 and an RRC 62;

The terminal 61, when detecting that the RB of the data service is RLC unrecoverable error, sending an RRC message to the RNC 62;

The RNC 62 is configured to release an RB that has an RLC unrecoverable error or reconfigure an RB that has an RLC unrecoverable error after receiving the RRC message.

After receiving the RRC message, the RB that releases the RLC unrecoverable error is released: If the RRC message is sent by the terminal after the RNC receives the RRC message, the RNC sends an RB release message to the terminal, where the RB releases the message. Carrying an identifier of the RB that needs to release the RLC unrecoverable error, and releasing only the RB in which the RLC unrecoverable error occurs.

After receiving the RRC message, the RB that releases the RLC unrecoverable error is released: If the terminal is a single data service, after receiving the RRC message sent by the terminal, the RNC sends an RRC connection release message to the terminal, which is used to release the entire RRC message. RRC connection.

After receiving the RRC message, the RB that re-allocates the RLC unrecoverable error is: When the RNC receives the RRC message sent by the terminal, the RNC sends an RB reconfiguration message to the terminal, where the RB reconfiguration message carries the identifier of the RB that needs to be reconfigured to generate an RLC unrecoverable error. Reconfigure RBs that have RLC unrecoverable errors.

Industrial applicability

The method and system for processing the terminal service provided by the present invention, when the terminal detects that the RB of the data service has an RLC unrecoverable error, sends an RRC message to the RNC; after receiving the RRC message, the RNC releases the RB or reconfiguration with the RLC unrecoverable error. An RB that cannot recover the error of the RLC can save the failure of the single data service and reduce the probability of dropped calls of the single data service. For concurrent multiple services, the other problems caused by the RLC unrecoverable error of the data service RB can be effectively reduced. The probability of dropped calls of the service, if it is a scenario of voice concurrent data services, can also ensure that high-priority user voice services will not be dropped.

The above description is only for the preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included. Within the scope of protection of the present invention.

Claims

Claim

A method for processing a terminal service, characterized in that the method comprises:

2. The method of claim 1 wherein

The method according to claim 1, wherein after receiving the RRC message, the RNC releases the RB in which the RLC unrecoverable error occurs:

After receiving the RRC message sent by the terminal, the RNC sends an RRC connection release message to the terminal to release the entire RRC connection.

The method according to claim 1, wherein, after the receiving the RRC message, the RNC reconfigures the RB in which the RLC unrecoverable error occurs:

A processing system for a terminal service, characterized in that the system comprises: a terminal and an RRC;

The terminal is configured to send an RRC message to the RNC when detecting an RLC unrecoverable error of the data service.

7. The system of claim 6 wherein:

8. The system according to claim 6, wherein, after receiving the RRC message, releasing the RB in which the RLC unrecoverable error occurs is:

The system according to claim 6, wherein, after receiving the RRC message, releasing the RB in which the RLC unrecoverable error occurs is:

The system according to claim 6, wherein, after receiving the RRC message, the RB that reconfigures the RLC unrecoverable error is: