WO2014019139A1

WO2014019139A1 - Method, device and system for implementing radio resource control connection release

Info

Publication number: WO2014019139A1
Application number: PCT/CN2012/079429
Authority: WO
Inventors: 姜怡; 张戬; 权威; 宋巍巍
Original assignee: 华为技术有限公司
Priority date: 2012-07-31
Filing date: 2012-07-31
Publication date: 2014-02-06
Also published as: CN104429153A; CN104429153B

Abstract

Disclosed are a method, device and system for implementing radio resource control connection release. The method includes: an evolved Node B (eNB) receives the connection release assistant message transmitted by a UE in RRC connection state; the information in the connection release assistant message transmitted by the UE is acquired, and according to the information and the preset connection delay condition, whether to release the RRC connection of the UE is judged. In the technical solution of the present invention, because the UE can assist the eNB to perform the adjudgement of the RRC connection release according to the acquired service attribute information, the unnecessary signaling cost can be avoided, and the resource utilization rate can be increased.

Description

Method, device and system for realizing wireless resource control connection release

Technical field

The present invention relates to the field of communications technologies, and in particular, to a method, apparatus, and system for implementing radio resource control connection release.

Background of the invention

In the existing LTE (Long Term Evolution) system, UE (User Equipment, user equipment) has two basic states: one is RRC (Radio Resource) Control, radio resource control) idle state; the other is the RRC connection state. UE through RRC connection establishment process and eNB (evolved Node B, the evolved node B) establishes an RRC connection, enters an RRC connection state from an RRC idle state, releases an RRC connection with the eNB through an RRC connection release procedure, and enters an RRC idle state from an RRC connection state; wherein the RRC connection release procedure is initiated only by the eNB Therefore, a connection release timer is usually maintained on the eNB side for each UE in the RRC connected state. When the eNB detects that there is no data transmission with a certain UE, the timer is started, and when the timer expires, the RRC connection is released. .

However, with the development of mobile intelligent terminals, more and more types of intelligent applications have emerged. There is a big difference between these emerging intelligent applications and the business models of traditional applications. Since the eNB does not have enough information about the business attributes, it is very It is difficult to set the connection release timer reasonably. If the timer is set to a long time, the UE with no service transmission will stay in the RRC connection state for a long time, and it will consume more power than the idle state. In addition, the eNB usually The UE in the connected state allocates some system resources and stores the context information of the UE. Therefore, staying in the RRC connection state for a long time also increases the power consumption of the UE, the system resource overhead, and the memory of the eNB; if the timer duration is set, It is also possible that the UE needs to send the uplink data again after the eNB releases the RRC connection of the UE. The UE needs to initiate the connection establishment process again, which increases unnecessary signaling overhead.

In the implementation process of the present invention, the inventor finds that the eNB's unreasonable setting of the connection release timer will result in an increase in power consumption, system resources, eNB memory, and signaling overhead of the UE.

Summary of the invention

The embodiments of the present invention provide a method, an apparatus, and a system for implementing radio resource control connection release. Since the UE can assist the eNB to enter the RRC connection release decision according to the obtained service attribute information, unnecessary signaling overhead can be avoided and the UE can be improved. Resource utilization.

The present invention provides a method for implementing radio resource control connection release, including:

Receiving, by the eNB, a connection release assistance message sent by the UE in an RRC connection state;

Acquiring information in the connection release assistance message sent by the UE, and determining whether to release the RRC connection of the UE according to the information and the predetermined connection extension condition.

The present invention provides an evolved node for implementing radio resource control connection release, including:

a message receiving module, configured to receive a connection release assistance message sent by the UE in an RRC connection state;

The decision control module is configured to obtain information in the connection release assistance message sent by the UE, and determine whether to release the RRC connection of the UE according to the information and the predetermined connection extension condition.

The present invention provides another method for implementing radio resource control connection release, including:

The UE in the RRC connected state acquires the time when the next data packet arrives;

Sending a connection release assistance message to the eNB, where the connection release assistance message includes a time when the next data packet arrives, so that the eNB determines whether to release the RRC connection according to the information in the connection release assistance message and the connection extension condition. .

The present invention provides a user equipment for implementing radio resource control connection release, including:

An information acquiring module, configured to acquire, by a UE in an RRC connected state, a time when a next data packet arrives;

a message sending module, configured to send a connection release assistance message to the eNB, where the connection release assistance message includes a time when the next data packet arrives, so that the eNB releases the information in the auxiliary message according to the connection and the predetermined connection extension condition It is determined whether to release the RRC connection.

The present invention also provides a system for implementing radio resource control connection release, including an evolved node as described above, and a user equipment as described above.

It can be seen that the eNB receives the connection release assistance message sent by the UE in the RRC connection state, and acquires the information in the connection release assistance message sent by the UE, according to the information and the predetermined The connection extension condition is used to determine whether to release the RRC connection of the UE. Since the UE can assist the eNB to enter the RRC connection release decision according to the obtained service attribute information, unnecessary signaling overhead can be avoided, and resource utilization is improved.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a flowchart of a method for implementing radio resource control connection release according to an embodiment of the present invention;

2 is a schematic structural diagram of an evolved node for implementing radio resource control connection release according to an embodiment of the present invention;

FIG. 3 is a flowchart of another method for implementing radio resource control connection release according to an embodiment of the present invention;

FIG. 4 is a schematic structural diagram of a user equipment for implementing radio resource control connection release according to an embodiment of the present invention;

FIG. 5 is a schematic structural diagram of a system for implementing radio resource control connection release according to an embodiment of the present invention.

Mode for carrying out the invention

As shown in FIG. 1 , an embodiment of the present invention provides a method for implementing radio resource control connection release, where the method is proposed by an eNB, and the method includes:

101. The eNB receives a connection release assistance message sent by the UE in an RRC connection state.

102. The eNB acquires information in the connection release assistance message sent by the UE, and determines whether to release the RRC connection of the UE according to the information and the predetermined connection extension condition.

In an embodiment of the present invention, before the step 101, the method may further include:

Sending an RRC connection release message to the UE when the first connection release timer of the RRC connected state UE expires on the eNB side; or

When the eNB determines that the RRC connection release is required to be performed according to the current network load, when the first connection release timer of the RRC connection state UE expires on the eNB side, the RRC connection release message including the enforcement indication is sent to the UE;

Otherwise, an RRC Connection Release message not containing an enforcement indication is sent to the UE.

In an embodiment of the present invention, step 101 may include:

After the eNB sends an RRC connection release message that includes an enforcement identifier to the UE, the connection release assistance message received by the eNB is a consent release message;

After the eNB sends an RRC connection release message that does not include an enforcement identifier to the UE, the connection release assistance message is a consent release message or a rejection release message.

In an embodiment of the present invention, the step 102 may include:

And performing a connection release operation when the connection release assistance message is an consent release message;

When the connection release assistance message is a refusal release message, and the connection extension condition is satisfied, the UE continues to be in the RRC connection state; when the connection extension condition is not satisfied, the RRC connection release operation is performed;

The refusal release message is sent to the eNB when the time is less than or equal to the first threshold after the time when the next data packet arrives, and the refusal release message carries the reason for the refusal release. And the time from the arrival of the next packet;

The connection extension condition includes one or more combinations of a current network load, a reason for rejecting release reported by the UE, and a time of arrival of the next data packet.

In the embodiment of the present invention, the eNB may determine whether to set the RRC connection release message to be mandatory or non-enforced according to the current network load, where the eNB cannot determine that the UE needs to enforce the RRC connection release. Forcing the RRC connection release message of the identifier to be rejected; for example, when the current network load is heavy, the eNB may forcibly release the RRC connection corresponding to the UE for the UE whose first connection release timer expires on the eNB side; The RRC connection release message that does not contain the enforcement identifier may be processed in a manner of agreeing to release or rejecting the release.

The enforcement and non-enforcement can be implemented by adding an indication identifier to the RRC connection release message.

For the sake of further understanding, before the foregoing step 101, the eNB further includes the specific implementation process of the present invention when the eNB needs to set the RRC connection release message to be mandatory or non-enforced according to the current network load. The process of the resource control connection release method is described in detail.

Embodiment 1:

11. When the first connection release timer of the UE in the RRC connection state is expired, the eNB decides to release the RRC connection of the UE, and sends an RRCConnectionRelease (RRC Connection Release) message to the UE, which is carried in the message. A 'whether enforcement indication' is implemented to indicate that the RRC connection is mandatory or not enforced;

Specifically, when the RRC connection release message sent by the eNB carries the enforcement identifier, the UE is notified that the RRC connection release message does not allow the UE to refuse to perform the RRC connection release operation.

The determining, by the eNB, whether the RRC connection release message is mandatory or not includes: if the current network load is heavy, the eNB forcibly requests the UE to release the connection for the UE whose first connection release timer expires to save network resources;

12. When the UE receives the RRCConnectionRelease message, it is determined whether the release indication is mandatory;

Specifically, the UE determines whether the release is mandatory or non-enforced by reading the “whether or not the execution indication” in the RRCConnectionRelease message;

If the release is mandatory, the RRC connection release operation is performed, and it should be noted that performing the RRC connection release operation may be implemented by using the prior art;

If the release is unenforced, the UE obtains a packet arrival prediction from its own application layer, that is, a time when the next data packet arrives. If the arrival time is greater than the first threshold, the UE sends an RRCConnectionReleaseResponse (RRC) to the eNB. a connection release response message, agreeing to release the RRC connection, and after determining that the eNB successfully receives the message, performing an RRC connection release operation;

Otherwise, the UE sends an RRCConnectionReleaseReject message to the eNB, refusing to release the RRC connection, where the UE may carry the reason for refusing to release the connection, and/or the time when the next data packet arrives;

The first threshold may be configured by the UE according to the experience value, or may be configured by the eNB for the UE, and sent to the UE by using an RRC message.

In addition, the RRC connection release reject message sent by the UE to the eNB in the embodiment of the present invention may be implemented by adding an identifier for identifying the message as an RRC connection release reject message in an RRC message, for example, adding “if in the RRCConnectionReleaseResponse message” Rejecting the "identification"; it can also be implemented by specifically extending a dedicated message for indicating an RRC Connection Release Reject message, such as an RRCConnectionReleaseReject message. It should be noted that, in the following embodiments, the RRC connection release reject message can be implemented by this method.

13. The eNB receives a connection release assistance message that is sent by the UE for the RRC connection release message, and performs a determination;

Specifically, if the eNB sends the mandatory RRC connection release message to the UE, after determining that the UE successfully receives the message, performing an RRC connection release operation;

If the eNB sends an unenforced RRC Connection Release message to the UE, the connection release assistance message sent by the UE is received:

Wherein, if the RRCConnectionReleaseResponse message is received, the RRC connection release operation is performed;

If the RRCConnectionReleaseReject message is received, the UE continues to be in the RRC connected state.

Optionally, the eNB may refer to the time when the next data packet is predicted by the UE, and schedule the UE at a corresponding time, that is, allocate uplink transmission resources for the UE, and if the UE is out of synchronization, the eNB may further instruct the UE to perform In the random access process, uplink synchronization is performed, and the random access process may be non-competitive or competitive.

In addition, the eNB does not receive the data packet of the UE within the time when the UE predicts the next data packet arrives in the RRC connection state, and the eNB may perform a forced release operation on the RRC connection of the UE.

In addition, in order to further understand the technical solution of the present invention when the eNB receives the RRC connection release message before the step 101 in the embodiment of the present invention, the process of implementing the method for releasing the radio resource control connection is detailed in the following Embodiment 2. Description.

Embodiment 2:

The eNB determines to release the RRC connection of the UE and sends an RRCConnectionRelease (RRC Connection Release) message to the UE when the first connection release timer of the UE in the RRC connection state is timed out.

22. When the UE receives the RRCConnectionRelease message, the UE obtains the data packet arrival prediction from its own application layer, that is, the arrival time of the next data packet, and compares the arrival time with the first threshold value;

If the time is greater than the first threshold, the UE sends an RCConnectionReleaseResponse message to the eNB, agrees to release the RRC connection, and after determining that the eNB successfully receives the message, performs an RRC connection release operation;

Otherwise, the UE sends an RRCConnectionReleaseReject message to the eNB, and refuses to release the RRC connection; wherein the UE may carry the reason for the rejection in the message, and/or the time when the next data packet arrives;

The eNB receives the connection release assistance message that the UE makes for the RRC connection release message, and determines:

If the eNB receives the RRCConnectionReleaseResponse message, or the received RRCConnectionReleaseResponse message carries the identifier set as the consent, the eNB sends an RRCConnectionReleaseAck (RRC Connection Release Ack) message to the UE, and carries the IE set as the consent in the message; After the message is successfully received, the RRC connection is released.

If the eNB receives the RRCConnectionReleaseReject message, or the received RRCConnectionReleaseResponse message carries the identifier that is set to be rejected, the eNB needs to determine whether to agree to the UE to reject the RRC connection release, that is, the eNB determines whether the connection extension condition is met;

Specifically, the eNB determines whether the connection extension condition is met, and may refer to the current network load, the reason for the rejection reported by the UE, and the time when the next data packet arrives;

If the current network load is heavy, the eNB may disagree with the UE's rejection request;

If the current network load is light, and the time that the next packet arrives by the UE is less than the second threshold, the eNB may agree to the UE's rejection request;

The second threshold may be a set of values. For example, the eNB sets different thresholds according to the weight of the network load. If the network load is heavy, a smaller threshold may be set; if the network load is light, the setting is set. Longer threshold.

If the eNB determines that the UE does not satisfy the connection extension condition, the UE does not agree to release the RRC connection, and then sends an RRCConnectionReleaseAck message to the UE, and carries the disagreement identifier in the message, ensuring the message. After being successfully received, releasing the RRC connection;

If the eNB determines that the UE meets the connection extension condition, it agrees that the UE refuses to release the RRC connection, and then sends an RRCConnectionReleaseAck message to the UE, and carries the set identity identifier in the message, and keeps the UE in the RRC connection state.

Optionally, the eNB may refer to the time when the next data packet is predicted by the UE, and schedule the UE at a corresponding time, that is, allocate uplink transmission resources for the UE. If the UE is out of synchronization, the eNB may also instruct the UE to perform a random access procedure and perform uplink synchronization. The random access procedure may be non-competitive or competitive.

In the embodiment of the present invention, the object of the present invention can also be achieved by maintaining two second connection release timers on the UE side.

In an embodiment of the present invention, the method may further include:

The eNB notifies the UE of the start rule and the size of the first connection release timer by using the RRC message, so that the second connection release timer on the UE side is synchronized with the first connection release timer.

Further, the step 101 may include:

The connection release assistance message received by the eNB is a time report; the time report carries a time when the next data packet arrives at the distance;

The time report is when the time when the second connection release timer distance of the UE side times out is equal to the third threshold, and the time after the UE arrives at the time when the next data packet arrives is less than or Is sent to the eNB when it is equal to the first threshold.

Further, the step 102 may include

The eNB determines, according to the connection extension condition, the UE that sends the time report;

When the connection extension condition is met, the first connection release timer is updated with the time when the next data packet arrives at the distance; when the connection extension condition is not satisfied, the connection release is performed after the first connection release timer of the eNB side times out. operating;

The connection extension condition is the current network load and/or the time from the arrival of the next packet.

For the sake of clearer description, the above technical solution of the present invention is implemented by maintaining a second connection release timer on the UE side. The foregoing solution will be described in detail through Embodiment 3.

Embodiment 3:

31, The eNB notifies the UE of the start rule and the size of the first connection release timer by using the RRC message; in addition, the start rule and the size may also be made available to the eNB and the UE in a clearly defined manner in the protocol;

32. The UE synchronizes the second connection release timer with the first connection release timer according to the obtained start rule and size of the first connection release timer.

Specifically, the UE starts the second connection release timer from the beginning of no data transmission, and when the data transmission starts again, resets the second connection release timer, and restarts the timer when the UE has no data transmission again; The no data may include only user plane data, and may include both user plane data and signaling plane data.

When the time of the second connection release timer distance timeout maintained by the UE is equal to the third threshold, the UE acquires the next packet arrival time from the application layer, and compares the arrival time with the first threshold;

When the arrival time is greater than the first threshold, the second connection release timer is timed out, and the RRC connection release message sent when the first connection release timer expires on the eNB is received;

If the time is less than or equal to a threshold, sending a time report to the eNB, where the time report carries the next packet arrival time;

Specifically, the message used for the time report may be a new RRC message, or may be implemented by adding an existing RRC message to the existing RRC message; or may be a new MAC address. CE (Media Access Control, Control Element, Media Access Layer, Control Element), or an existing MAC The CE is implemented by adding a new field, such as a BSR (Buffer Status Report) MAC CE.

33. After receiving the time report, the eNB determines whether the connection extension condition is met.

Specifically, the eNB may decide whether to extend the timer according to the network load condition. If the current network load is heavy, the UE does not satisfy the connection extension condition, and the eNB may not extend the extension;

If the current network load is light, and the time when the UE arrives from the next data packet is less than the second threshold, the UE satisfies the connection extension condition, and the eNB may agree to extend, and update the first time with the arrival time of the next data packet of the distance. Connection release timer

The second threshold may also be a set of values. For example, the eNB sets different thresholds according to the weight of the network load. If the network load is heavy, a smaller threshold may be set. Light, set a longer threshold.

Specifically, if the eNB extends the first connection release timer, it may also refer to the time when the next data packet is predicted by the UE, and schedule the UE at a corresponding time, that is, allocate uplink transmission resources for the UE. If the UE is out of synchronization, the eNB may also instruct the UE to perform a random access procedure and perform uplink synchronization. The random access procedure may be non-competitive or competitive.

In another embodiment of the present invention, the method may further include:

Further, step 101 may include:

The connection release assistance message received by the eNB is a measurement report; the measurement report includes at least a request release indication and/or a time from the arrival of the next data packet;

The measurement report is sent by the UE to the eNB when the time when the timeout of the second connection release timer on the UE side is equal to the third threshold, and the measurement reporting condition is met;

The measurement reporting condition includes a measurement report triggering event configured by the eNB for the UE, and a determination process by which the UE compares the acquired time when the next data packet arrives with the first threshold value.

Further, the step 102 may include:

The connection extension condition is a connection release condition, where the connection release condition includes a current network load, and a determination process of a time when the next packet arrives and a second threshold value;

Determining, by the eNB, the UE that sends the measurement report according to the connection release condition, and performing an RRC connection release operation when determining that the connection release condition is met; or sending a connection release message to the UE; wherein the RRC connection release operation includes The local RRC connection is released.

In order to clarify the technical solution of the present invention by maintaining the second connection release timer on the UE side, the above solution will be described in detail through Embodiment 4.

Embodiment 4:

The eNB notifies the UE of the start rule and the size of the first connection release timer by using the RRC message; in addition, the start rule and the size may also be made available to the eNB and the UE in a clearly defined manner in the protocol;

42: The UE keeps the second connection release timer synchronized with the first connection release timer according to the obtained start rule and size of the first connection release timer.

Specifically, the UE starts the timer from no data transmission, and when the data transmission starts again, resets the timer, and restarts the timer when the UE has no data transmission again; the no data may include only the user plane. The data may also include both user plane data and signaling plane data.

The UE performs the measurement to determine whether the measurement reporting condition is met, and the measurement reporting condition may be a measurement report triggering event configured by the eNB;

Specifically, if the measurement report is triggered, and the connection release timer maintained by the UE is about to time out, the UE sends a measurement report to the eNB;

The measurement report may be a new RRC message, or may be an existing RRC message and implemented by adding a new IE; or may be a new MAC. CE, can also be an existing MAC CE and implemented by adding new fields to it;

The measurement report includes at least a request release indication, and may also include a normal measurement report;

Specifically, the measurement reporting condition may further include: a process of determining, by the UE, a time when the next data packet arrives from the application layer, and comparing the time with the first threshold;

If the time is greater than the first threshold, the above measurement report is performed;

If the time is less than or equal to the first threshold, only normal measurement reports are performed;

It should be noted that, if the process of comparing the arrival time of the next data packet with the first threshold value is included in the determining whether the measurement reporting condition is met, the UE may report the time to the eNB when transmitting the measurement report. So that the eNB performs a reference for whether to perform release;

44. The eNB receives the foregoing measurement report sent by the UE, and determines whether it is a local release or a release release message.

The eNB determines whether it is a local release or a release release message, which may be negotiated between the two parties in the connection process, or may be specified by the protocol; if the two parties negotiate well in the connection process, the RRC message may be used, or may be used. MAC CE;

The eNB performs a local release connection operation when it is determined that the RRC connection is locally released;

When determining that the RRC connection release message is sent to the UE, the eNB performs a release connection operation after confirming that the UE receives the release message.

In addition, if the UE reports the time of arrival of the next data packet in the measurement report, the eNB may determine according to the time, if the time is greater than the second threshold, then agree to release; otherwise, the release may be refused, and the UE is notified ;

Specifically, the refusal release indication may be a new RRC message, or may be an existing RRC message and implemented by adding a new IE; or may be a new MAC The CE can also be an existing MAC CE and implemented by adding new fields to it.

In addition, the refusal release indication may also be a handover command message, that is, if the eNB decides to reject the release request, it may send a handover command message to the UE to instruct the UE to perform handover.

Optionally, the second threshold value may also be a set of values, for example, the eNB sets different threshold values according to the weight of the network load. If the network load is heavy, you can set a smaller threshold; if the network load is light, set a longer threshold. It should be noted that if the eNB can determine whether to agree to release, the agreement of both parties cannot be released locally.

45. If the two parties negotiate a local release, the UE releases the connection locally after ensuring that the eNB correctly receives the report message. If the eNB needs to send the connection release message, the UE performs the release process after receiving the connection release message.

Optionally, if the UE receives the refusal release indication sent by the eNB, the UE continues to stay in the connected state. If the indication message is a handover command message, the UE performs a handover procedure.

It can be seen from the foregoing embodiment that, in the technical solution of the present invention, since the UE can obtain the data packet arrival prediction from its own application layer, and assists the eNB to enter the RRC connection release decision according to the obtained service attribute information, unnecessary signaling can be avoided. Overhead, increased resource utilization.

As shown in FIG. 2, based on the method described in the foregoing embodiment of FIG. 1, an embodiment of the present invention provides an evolved node that implements release of a radio resource control connection, including:

The message receiving module 211 is configured to receive a connection release assistance message sent by the UE in an RRC connection state;

The decision control module 212 is configured to obtain information in the connection release assistance message sent by the UE, and determine whether to release the RRC connection of the UE according to the information and the predetermined connection extension condition.

Further, the evolved node further includes:

The message control module 213 is configured to send an RRC connection release message to the UE when the first connection release timer of the RRC connection state UE expires on the eNB side; or

When the eNB determines that the RRC connection release needs to be enforced according to the current network load, when the first connection release timer expires on the eNB side, the RRC connection release message including the enforcement indication is sent to the UE; otherwise, the sending to the UE does not include The indicated RRC Connection Release message is enforced.

Further, the message receiving module is specifically configured to:

Further, the decision control module is specifically configured to:

Further, the evolved node further includes:

The information notification module 214 is configured to notify the UE of the start rule and the size of the first connection release timer by using an RRC message, so that the second connection release timer on the UE side is synchronized with the first connection release timer.

Further, the message receiving module is specifically configured to:

Receiving the connection release assistance message as a time report; the time report carries a time when the next packet arrives at the distance;

Further, the decision control module is specifically configured to:

Determining the UE that sends the time report according to the connection extension condition;

Further, the message receiving module is specifically configured to:

Receiving the connection release assistance message as a measurement report; the measurement report includes at least a request release indication and/or a time from the arrival of the next data packet;

Further, the decision control module is specifically configured to:

Determining, by the connection release condition, the UE that sends the measurement report, performing an RRC connection release operation when determining that the connection release condition is met; or sending a connection release message to the UE; wherein the RRC connection release operation includes local The RRC connection is released.

It should be noted that the evolved node proposed by the embodiment of the present invention is obtained based on the method embodiment of FIG. 1 and includes the same or corresponding technical features, wherein the functions implemented by each module in the embodiment of the present invention are the same as those in the embodiment of FIG. For the specific implementation of the steps, refer to the related descriptions in Embodiments 1, 2, 3, and 4. Therefore, the specific solution involved in the present invention can be referred to the related description in the embodiment of FIG. 1, and details are not described herein.

As shown in FIG. 3, an embodiment of the present invention provides a method for implementing a radio resource control connection release, which is proposed by a UE, and includes:

301. The UE in the RRC connection state acquires a time when the next data packet arrives;

302. Send a connection release assistance message to the eNB, where the connection release assistance message includes a time when the next data packet arrives, so that the eNB determines whether to release according to the information in the connection release assistance message and the predetermined connection extension condition. The RRC connection.

In an embodiment of the present invention, the method may further include: before the sending the connection release assistance message to the eNB:

Receiving an RRC connection release message sent by the eNB; or

Receiving an RRC connection release message that includes an enforcement indication sent by the eNB, or receiving an RRC connection release message sent by the eNB that does not include an enforcement indication.

In an embodiment of the present invention, the step 301 may include:

When receiving the RRC connection release message sent by the eNB or the RRC connection release message that does not include the enforcement indication, acquiring a time from the arrival of the next data packet, and comparing the time with the first threshold value;

When the time is greater than the first threshold, the RRC connection is agreed to be released; when the time is less than or equal to the first threshold, the RRC connection is refused to be released.

In an embodiment of the present invention, step 302 may include:

And performing a connection release operation when the connection release assistance message sent to the eNB is a consent release message;

When the connection release assistance message sent to the eNB is a refusal release message, the message includes a reason for refusing to release and a time when the next data packet arrives, so that the eNB, when determining that the UE satisfies the connection extension condition, The RRC connection state continues to be maintained; when the connection extension condition is not satisfied, the RRC connection release operation is performed.

It should be noted that, in the implementation of the embodiment of the present invention, a specific solution for indicating the enforcement or non-enforcement of the identifier is set for the eNB to the RRC connection release message, and reference may be made to the related description in the first embodiment, where The operation performed by the UE in the embodiment of the present invention is the same as the operation procedure of the UE in the first embodiment.

In addition, for the technical solution that the enforcement or non-enforcement of the identifier is not set in the RRC connection release message, refer to the related description in the second embodiment, the operation performed by the UE in the embodiment of the present invention, and the operation of the UE in the first embodiment. The process is the same.

In the embodiment of the present invention, the technical solution of the present invention may be implemented by using two manners of maintaining a second connection release timer on the UE side, as follows:

In an embodiment of the present invention, the method may further include:

Receiving a start rule and a size of a first connection release timer sent by the eNB by using an RRC message;

And maintaining a second connection release timer maintained by the UE side with the first connection release timer.

Further, step 301 can include:

And acquiring, when the time when the second connection release timer distance expires is equal to the third threshold, the time when the next data packet arrives;

The sending the connection release assistance message to the eNB in step 302 may include:

And sending, when the time is less than or equal to the first threshold, a connection release assistance message to the eNB, where the message is a time report; the time report carries a time when the next packet arrives at the distance, so that the eNB The length of the first connection release timer is extended when it is determined that the UE satisfies the connection extension condition; the connection extension condition is a current network load and/or a time when the next data packet arrives.

For the above implementation, refer to the related description in the third embodiment. The operation procedure performed by the UE in this embodiment is the same as the processing procedure of the UE in the third embodiment.

In another embodiment of the present invention, the method may further include:

Further, step 301 can include:

When the timeout timeout of the second connection release timer is equal to the third threshold, the time of arrival of the next data packet is obtained, and it is determined whether the measurement reporting condition is met; the measurement reporting condition includes the eNB configuring the UE for the UE. Measuring a report triggering event, and a determination process by which the UE compares the time at which the next packet arrives with the first threshold value;

When the value of the second connection release timer is equal to the third threshold, and the measurement reporting condition is met, the connection release assistance message is sent to the eNB, where the message is a measurement report; the measurement report includes at least the request release indication and/or Or the time when the next data packet arrives, so that when the eNB determines that the UE satisfies the connection release condition, the RRC connection release operation is performed; the connection release condition includes the current network load, and the time when the next packet arrives The judgment process of the second threshold.

For the foregoing implementation scheme, refer to the related description in the fourth embodiment. In the embodiment, the operation procedure performed by the UE is the same as the processing procedure of the UE in the fourth embodiment.

As shown in FIG. 4, based on the method embodiment shown in FIG. 3, a user equipment for implementing radio resource control connection release is provided, including:

The information obtaining module 411 is configured to acquire, by the UE in an RRC connected state, a time when the next data packet arrives;

The message sending module 412 is configured to send a connection release assistance message to the eNB, where the connection release assistance message includes a time when the next data packet arrives, so that the eNB releases the information in the auxiliary message according to the connection and the predetermined connection is extended. Condition to determine whether to release the RRC connection.

Further, the user equipment may further include:

The message receiving module 413 is configured to receive an RRC connection release message sent by the eNB before sending the connection release assistance message to the eNB.

Or before receiving the connection release assistance message to the eNB, receiving the RRC connection release message as an RRC connection release message including an enforcement indication, or an RRC connection release message not including an enforcement indication.

Further, the information acquiring module is specifically configured to:

When receiving the RRC connection release message or the connection release message not including the enforcement indication, acquiring a time from the arrival of the next data packet, and comparing the time with the first threshold value;

Further, the message sending module is specifically configured to:

When the connection release assistance message sent to the eNB is a refusal release message, the message includes a reason for refusing to release and a time when the next data packet arrives, so that the eNB determines that the UE satisfies the connection extension condition, The UE continues to be in the RRC connected state; when the connection extension condition is not satisfied, the RRC connection release operation is performed.

Further, the user equipment further includes:

The receiving synchronization module 414 is configured to receive a start rule and a size of a first connection release timer sent by the eNB by using an RRC message;

Further, the information acquiring module is specifically configured to:

The message sending module is specifically configured to:

Further, the information acquiring module is specifically configured to:

The message sending module is specifically configured to:

It should be noted that the user equipment provided by the embodiment of the present invention is obtained based on the method embodiment of FIG. 3, and includes the same or corresponding technical features, wherein the functions implemented by each module in the embodiment of the present invention are in the embodiment of FIG. For the specific solutions involved in the present invention, reference may be made to the related description in the embodiment of FIG. 3, and details are not described herein.

As shown in FIG. 5, the embodiment of the present invention further provides a system for implementing radio resource control connection release, including the evolved node 511 shown in FIG. 2, and the user equipment 512 shown in FIG.

The above-mentioned FIG. 2 and FIG. 4 respectively describe the eNodeB and the user equipment included in FIG. 5 in detail, and therefore are not described in detail in this embodiment. For details, refer to the description in the foregoing related embodiments.

One of ordinary skill in the art can understand that all or part of the process of implementing the foregoing embodiments can be completed by a computer program to instruct related hardware, and the program can be stored in a computer readable storage medium. When executed, the flow of an embodiment of the methods as described above may be included. The storage medium may be a magnetic disk, an optical disk, or a read-only storage memory (Read-Only) Memory, ROM) or Random Access Memory (RAM).

Claims

A method for implementing radio resource control connection release, comprising:

The evolved node eNB receives the connection release assistance message sent by the user equipment UE in the RRC connection state of the radio resource control;

Acquiring information in the connection release assistance message sent by the UE, and determining whether to release the RRC connection of the UE according to the information and the predetermined connection extension condition.
The method according to claim 1, wherein before the eNB receives the connection release assistance message sent by the UE in the RRC connection state, the method further includes:

Sending an RRC connection release message to the UE when the first connection release timer of the RRC connected state UE expires on the eNB side; or

When the eNB determines that the RRC connection release needs to be enforced according to the current network load, when the first connection release timer expires on the eNB side, the RRC connection release message including the enforcement indication is sent to the UE; otherwise, the sending to the UE does not include The indicated RRC Connection Release message is enforced.
The method according to claim 1 or 2, wherein the eNB receives the connection release assistance message sent by the UE in the RRC connection state, including:

After the eNB sends an RRC connection release message that includes an enforcement identifier to the UE, the connection release assistance message received by the eNB is a consent release message;

After the eNB sends an RRC connection release message that does not include an enforcement identifier to the UE, the connection release assistance message is a consent release message or a rejection release message.
The method according to claim 3, wherein the acquiring information in the connection release assistance message sent by the UE determines whether to release the RRC connection of the UE according to the information and a predetermined connection extension condition. include:

And performing a connection release operation when the connection release assistance message is an consent release message;

When the connection release assistance message is a refusal release message, and the connection extension condition is satisfied, the UE continues to be in the RRC connection state; when the connection extension condition is not satisfied, the RRC connection release operation is performed;

The refusal release message is sent to the eNB when the time is less than or equal to the first threshold after the time when the next data packet arrives, and the refusal release message carries the reason for the refusal release. And the time from the arrival of the next packet;

The connection extension condition includes one or more combinations of a current network load, a reason for rejecting release reported by the UE, and a time of arrival of the next data packet.
The method of claim 1 wherein The method further includes:

The eNB notifies the UE of the start rule and the size of the first connection release timer by using the RRC message, so that the second connection release timer on the UE side is synchronized with the first connection release timer.
The method according to claim 5, wherein the eNB receives the connection release assistance message sent by the UE in the RRC connection state, including:

The connection release assistance message received by the eNB is a time report; the time report carries a time when the next data packet arrives at the distance;

The time report is when the time when the second connection release timer distance of the UE side times out is equal to the third threshold, and the time after the UE arrives at the time when the next data packet arrives is less than or Is sent to the eNB when it is equal to the first threshold.
The method according to claim 6, wherein the acquiring information in the connection release assistance message sent by the UE determines whether to release the RRC connection of the UE according to the information and a predetermined connection extension condition. include

The eNB determines, according to the connection extension condition, the UE that sends the time report;

When the connection extension condition is met, the first connection release timer is updated with the time when the next data packet arrives at the distance; when the connection extension condition is not satisfied, the connection release is performed after the first connection release timer of the eNB side times out. operating;

The connection extension condition is the current network load and/or the time from the arrival of the next packet.
The method according to claim 5, wherein the eNB receives the connection release assistance message sent by the UE in the RRC connection state, including:

The connection release assistance message received by the eNB is a measurement report; the measurement report includes at least a request release indication and/or a time from the arrival of the next data packet;

The measurement report is sent by the UE to the eNB when the time when the timeout of the second connection release timer on the UE side is equal to the third threshold, and the measurement reporting condition is met;

The measurement reporting condition includes a measurement report triggering event configured by the eNB for the UE, and a determination process by which the UE compares the acquired time when the next data packet arrives with the first threshold value.
The method according to claim 8, wherein the acquiring information in the connection release assistance message sent by the UE determines whether to release the RRC connection of the UE according to the information and a predetermined connection extension condition. include:

The connection extension condition is a connection release condition, where the connection release condition includes a current network load, and a determination process of a time when the next packet arrives and a second threshold value;

Determining, by the eNB, the UE that sends the measurement report according to the connection release condition, and performing an RRC connection release operation when determining that the connection release condition is met; or sending a connection release message to the UE; wherein the RRC connection release operation includes The local RRC connection is released.
An evolved node for implementing radio resource control connection release, comprising:

a message receiving module, configured to receive a connection release assistance message sent by the UE in an RRC connection state;

The decision control module is configured to obtain information in the connection release assistance message sent by the UE, and determine whether to release the RRC connection of the UE according to the information and the predetermined connection extension condition.
The node according to claim 10, wherein the evolved node further comprises:

a message control module, configured to send an RRC connection release message to the UE when the first connection release timer of the RRC connection state UE expires on the eNB side; or

When the eNB determines that the RRC connection release needs to be enforced according to the current network load, when the first connection release timer expires on the eNB side, the RRC connection release message including the enforcement indication is sent to the UE; otherwise, the sending to the UE does not include The indicated RRC Connection Release message is enforced.
The node according to claim 10 or 11, wherein the message receiving module is specifically configured to:

After the eNB sends an RRC connection release message that includes an enforcement identifier to the UE, the connection release assistance message received by the eNB is a consent release message;

After the eNB sends an RRC connection release message that does not include an enforcement identifier to the UE, the connection release assistance message is a consent release message or a rejection release message.
The node according to claim 12, wherein the decision control module is specifically configured to:

And performing a connection release operation when the connection release assistance message is an consent release message;

When the connection release assistance message is a refusal release message, and the connection extension condition is satisfied, the UE continues to be in the RRC connection state; when the connection extension condition is not satisfied, the RRC connection release operation is performed;

The refusal release message is sent to the eNB when the time is less than or equal to the first threshold after the time when the next data packet arrives, and the refusal release message carries the reason for the refusal release. And the time from the arrival of the next packet;

The connection extension condition includes one or more combinations of a current network load, a reason for rejecting release reported by the UE, and a time of arrival of the next data packet.
The node of claim 10 wherein: The evolved node further includes:

The information notification module is configured to notify the UE of the start rule and the size of the first connection release timer by using an RRC message, so that the second connection release timer on the UE side is synchronized with the first connection release timer.
The node according to claim 14, wherein the message receiving module is specifically configured to:

Receiving the connection release assistance message as a time report; the time report carries a time when the next packet arrives at the distance;

The time report is when the time when the second connection release timer distance of the UE side times out is equal to the third threshold, and the time after the UE arrives at the time when the next data packet arrives is less than or Is sent to the eNB when it is equal to the first threshold.
The method according to claim 15, wherein the decision control module is specifically configured to:

Determining the UE that sends the time report according to the connection extension condition;

When the connection extension condition is met, the first connection release timer is updated with the time when the next data packet arrives at the distance; when the connection extension condition is not satisfied, the connection release is performed after the first connection release timer of the eNB side times out. operating;

The connection extension condition is the current network load and/or the time from the arrival of the next packet.
The node according to claim 14, wherein the message receiving module is specifically configured to:

Receiving the connection release assistance message as a measurement report; the measurement report includes at least a request release indication and/or a time from the arrival of the next data packet;

The measurement report is sent by the UE to the eNB when the time when the timeout of the second connection release timer on the UE side is equal to the third threshold, and the measurement reporting condition is met;

The measurement reporting condition includes a measurement report triggering event configured by the eNB for the UE, and a determination process by which the UE compares the acquired time when the next data packet arrives with the first threshold value.
The node according to claim 17, wherein the decision control module is specifically configured to:

The connection extension condition is a connection release condition, where the connection release condition includes a current network load, and a determination process of a time when the next packet arrives and a second threshold value;

Determining, by the connection release condition, the UE that sends the measurement report, performing an RRC connection release operation when determining that the connection release condition is met; or sending a connection release message to the UE; wherein the RRC connection release operation includes local The RRC connection is released.
A method for implementing radio resource control connection release, comprising:

The UE in the RRC connected state acquires the time when the next data packet arrives;

Sending a connection release assistance message to the eNB, where the connection release assistance message includes a time when the next data packet arrives, so that the eNB determines whether to release the information according to the information in the connection release assistance message and a predetermined connection extension condition. RRC connection.
The method of claim 19, wherein the method further comprises before the transmitting the connection release assistance message to the eNB:

Receiving an RRC connection release message sent by the eNB; or

Receiving an RRC connection release message that includes an enforcement indication sent by the eNB, or receiving an RRC connection release message sent by the eNB that does not include an enforcement indication.
The method according to claim 20, wherein the UE in the RRC connected state acquires the time from the arrival of the next data packet, including:

When receiving the RRC connection release message sent by the eNB or the RRC connection release message that does not include the enforcement indication, acquiring a time from the arrival of the next data packet, and comparing the time with the first threshold value;

When the time is greater than the first threshold, the RRC connection is agreed to be released; when the time is less than or equal to the first threshold, the RRC connection is refused to be released.
The method according to claim 21, wherein the sending the connection release assistance message to the eNB comprises:

And performing a connection release operation when the connection release assistance message sent to the eNB is a consent release message;

When the connection release assistance message sent to the eNB is a refusal release message, the message includes a reason for refusing to release and a time when the next data packet arrives, so that the eNB, when determining that the UE satisfies the connection extension condition, The RRC connection state continues to be maintained; when the connection extension condition is not satisfied, the RRC connection release operation is performed.
The method of claim 19, wherein the method further comprises:

Receiving a start rule and a size of a first connection release timer sent by the eNB by using an RRC message;

And maintaining a second connection release timer maintained by the UE side with the first connection release timer.
The method according to claim 23, wherein the UE in the RRC connected state acquires the time from the arrival of the next data packet, including:

And acquiring, when the time when the second connection release timer distance expires is equal to the third threshold, the time when the next data packet arrives;

The sending a connection release assistance message to the eNB includes:

And sending, when the time is less than or equal to the first threshold, a connection release assistance message to the eNB, where the message is a time report; the time report carries a time when the next packet arrives at the distance, so that the eNB The length of the first connection release timer is extended when it is determined that the UE satisfies the connection extension condition; the connection extension condition is a current network load and/or a time when the next data packet arrives.
The method according to claim 23, wherein the UE in the RRC connected state acquires the time from the arrival of the next data packet, including:

When the timeout timeout of the second connection release timer is equal to the third threshold, the time of arrival of the next data packet is obtained, and it is determined whether the measurement reporting condition is met; the measurement reporting condition includes the eNB configuring the UE for the UE. Measuring a report triggering event, and a determination process by which the UE compares the time at which the next packet arrives with the first threshold value;

The sending a connection release assistance message to the eNB includes:

When the value of the second connection release timer is equal to the third threshold, and the measurement reporting condition is met, the connection release assistance message is sent to the eNB, where the message is a measurement report; the measurement report includes at least the request release indication and/or Or the time when the next data packet arrives, so that when the eNB determines that the UE satisfies the connection release condition, the RRC connection release operation is performed; the connection release condition includes the current network load, and the time when the next packet arrives The judgment process of the second threshold.
A user equipment for implementing radio resource control connection release, which is characterized in that:

An information acquiring module, configured to acquire, by a UE in an RRC connected state, a time when a next data packet arrives;

a message sending module, configured to send a connection release assistance message to the eNB, where the connection release assistance message includes a time when the next data packet arrives, so that the eNB releases the information in the auxiliary message according to the connection and the predetermined connection extension condition It is determined whether to release the RRC connection.
The user equipment according to claim 26, wherein the user equipment further comprises:

a message receiving module, configured to receive an RRC connection release message sent by the eNB before sending the connection release assistance message to the eNB;

Or before receiving the connection release assistance message to the eNB, receiving the RRC connection release message as an RRC connection release message including an enforcement indication, or an RRC connection release message not including an enforcement indication.
The user equipment according to claim 27, wherein the information acquisition module is specifically configured to:

When receiving the RRC connection release message or the connection release message not including the enforcement indication, acquiring a time from the arrival of the next data packet, and comparing the time with the first threshold value;

When the time is greater than the first threshold, the RRC connection is agreed to be released; when the time is less than or equal to the first threshold, the RRC connection is refused to be released.
The user equipment according to claim 28, wherein the message sending module is specifically configured to:

And performing a connection release operation when the connection release assistance message sent to the eNB is a consent release message;

When the connection release assistance message sent to the eNB is a refusal release message, the message includes a reason for refusing to release and a time when the next data packet arrives, so that the eNB determines that the UE satisfies the connection extension condition, The UE continues to be in the RRC connected state; when the connection extension condition is not satisfied, the RRC connection release operation is performed.
The user equipment according to claim 26, wherein the user equipment further comprises:

a receiving synchronization module, configured to receive a start rule and a size of a first connection release timer sent by the eNB by using an RRC message;

And maintaining a second connection release timer maintained by the UE side with the first connection release timer.
The user equipment according to claim 30, wherein the information acquisition module is specifically configured to:

And acquiring, when the time when the second connection release timer distance expires is equal to the third threshold, the time when the next data packet arrives;

The message sending module is specifically configured to:

And sending, when the time is less than or equal to the first threshold, a connection release assistance message to the eNB, where the message is a time report; the time report carries a time when the next packet arrives at the distance, so that the eNB The length of the first connection release timer is extended when it is determined that the UE satisfies the connection extension condition; the connection extension condition is a current network load and/or a time when the next data packet arrives.
The user equipment according to claim 30, wherein the information acquisition module is specifically configured to:

When the timeout timeout of the second connection release timer is equal to the third threshold, the time of arrival of the next data packet is obtained, and it is determined whether the measurement reporting condition is met; the measurement reporting condition includes the eNB configuring the UE for the UE. Measuring a report triggering event, and a determination process by which the UE compares the time at which the next packet arrives with the first threshold value;

The message sending module is specifically configured to:

When the value of the second connection release timer is equal to the third threshold, and the measurement reporting condition is met, the connection release assistance message is sent to the eNB, where the message is a measurement report; the measurement report includes at least the request release indication and/or Or the time when the next data packet arrives, so that when the eNB determines that the UE satisfies the connection release condition, the RRC connection release operation is performed; the connection release condition includes the current network load, and the time when the next packet arrives The judgment process of the second threshold.
A system for implementing radio resource control connection release, comprising the evolved node of any of claims 10-18, and the user equipment of any of claims 26-32.