CN105265006B - Method and device for sending and receiving indication information - Google Patents

Abstract

Embodiments of the present invention provide a method and apparatus for sending and receiving indication information. The method includes: a first base station receives an RLF report, compares the RLF report with a preset feature, and when it is determined that the RLF report conforms to the preset feature, The first base station sends indication information to the second base station, for the second base station to know, according to the indication information, the access failure situation that occurs in the cell of the second base station. The method and apparatus for sending and receiving indication information provided by the embodiments of the present invention can realize that after a UE fails to access or handover in a certain cell, the cell can know the reason for the failure of access or handover in its own coverage area through the indication information , thereby providing conditions for the base station to which the cell belongs to control the behavior of the UE after the cell access or handover fails.

Description

Method and device for sending and receiving indication information

technical field

Embodiments of the present invention relate to the field of communication technologies, and in particular, to a method and apparatus for sending and receiving indication information.

Background technique

The Chiba phenomenon is a network access failure problem discovered by operators. Its essence is that there is an unbalanced area of uplink and downlink signal propagation within the cell coverage. The specific scenarios are as follows: For two base stations deployed on both sides of the river, if the user equipment ( User Equipment, hereinafter referred to as: UE) is on the left bank of the river, although it is far from the base station on the right, but due to the reflection of the river, the signal strength of the signal from the base station on the right reaching the UE is still relatively strong, and the UE performs cell reselection according to the downlink signal. the signal strength is selected. Therefore, when the UE performs cell reselection near the river bank, it will still select the cell to which the base station on the right belongs. If the UE initiates a service at this time, since the UE is far away from the base station on the right, the uplink signal sent by the UE cannot reach the base station on the right. A random access channel (Random Access Channel, hereinafter referred to as: RACH) access fails. There is a timer T300 inside the UE. The UE will start the timer when it initiates RACH access. Before the timer expires, the UE will keep trying to access the RACH. After the timer expires, if the UE still fails to access successfully, it will Trigger to stop access. Subsequently, if the UE re-initiates the access, the above-mentioned access process will be repeated, but the UE will always fail to access. For such a cell, if the network side triggers the handover from the left base station to the right base station, a handover failure will also occur. A solution in the prior art is that, if the UE encounters T300 timeout and access failure in a certain cell continuously, it will ban the cell, so as to re-select another cell to initiate the service.

However, in practice, even if the UE is not in the area of the Chiba phenomenon, the UE may experience access or handover failure. For example, if the uplink load of a cell is relatively heavy in a certain period of time, it will also cause the UE to fail in access or handover. In the prior art, the UE cannot distinguish whether the access or handover failure is caused by a certain reason. Therefore, how to effectively identify the failure in the cell The reason for the access or handover failure is a problem that needs to be solved.

SUMMARY OF THE INVENTION

The embodiments of the present invention provide a method and device for sending and receiving indication information, which can realize that the network side can know the failure of access or connection establishment in its own coverage area, and control the behavior of the UE after the failure of access or connection establishment for the base station conditions are provided.

In a first aspect, an embodiment of the present invention provides a method for sending indication information, including:

The first base station receives a radio link failure RLF report, the RLF report is sent by the user equipment UE or forwarded by a third base station, and the third base station is established after the UE handover fails and the UE successfully establishes Radio resource control RRC connected base station;

The first base station compares the RLF report with a preset feature;

When it is determined that the RLF report conforms to the preset feature, the first base station sends indication information to the second base station, which is used by the second base station to know the cell of the second base station according to the indication information Access failures occurred;

The first base station is a source cell base station where the handover failure of the UE occurs, and the second base station is a target handover cell base station where the handover failure occurs for the UE.

With reference to the first aspect, in a first possible implementation manner of the first aspect, the RLF report at least includes the identity of the target handover cell and the reason for the handover failure, and the preset feature is: the UE is handed over failure, and the reason for the handover failure is that the random access channel RACH fails; or,

The RLF report includes at least the identity of the target handover cell and the identity of the re-establishment target cell, and the preset feature is: the identity of the re-establishment target cell is the same as the identity of the target handover cell; or,

The RLF report includes at least: information on whether the re-establishment is successful, and the preset feature is: the re-establishment fails; or,

The RLF report includes at least: the identity of the target handover cell and the channel measurement result of the target handover cell where the handover failure occurs, and the preset feature is: the UE fails in the handover, and the target handover in which the handover failure occurs is failed. The channel measurement result of the cell is higher than the predetermined threshold.

With reference to the first aspect or the first possible implementation manner of the first aspect, in a second possible implementation manner of the first aspect, the indication information includes: the RLF report and/or the indication of the second base station The cell is the information of the uplink and downlink unbalanced cell;

The first base station sends indication information to the second base station, which is used for the second base station to know, according to the indication information, the access failure situation that occurs in the cell of the second base station, including:

The first base station sends the RLF report and/or information indicating that the cell of the second base station is an uplink and downlink unbalanced cell to the second base station, for the second base station to use the RLF report and/or the information Or the information indicating that the cell of the second base station is an unbalanced cell in uplink and downlink is used to learn the access failure situation that occurs in the cell of the second base station.

In a second aspect, an embodiment of the present invention provides a method for receiving indication information, including:

The second base station receives the indication information sent by the first base station, the indication information is that after the first base station receives the RLF report of the radio link failure, the first base station compares the RLF report with the preset characteristics, when determining the RLF The report is sent when the report conforms to the preset feature, and the RLF report received by the first base station is sent by the user equipment UE or forwarded by a third base station, and the third base station is in the UE. a base station that successfully establishes a radio resource control RRC connection with the UE after the handover fails;

The second base station learns, according to the indication information, the access failure situation that occurs in the cell of the second base station;

The first base station is a source cell base station where the handover failure of the UE occurs, and the second base station is a target handover cell base station where the handover failure occurs for the UE.

With reference to the second aspect, in a first possible implementation manner of the second aspect, the RLF report at least includes the identity of the target handover cell and the reason for the handover failure, and the preset feature is: the UE is handed over failure, and the reason for the handover failure is that the random access channel RACH fails; or,

The RLF report includes at least the identity of the target handover cell and the identity of the re-establishment target cell, and the preset feature is: the identity of the re-establishment target cell is the same as the identity of the target handover cell; or,

The RLF report includes at least: information on whether the re-establishment is successful, and the preset feature is: the re-establishment fails; or,

The RLF report includes at least: the identity of the target handover cell and the channel measurement result of the target handover cell where the handover failure occurs, and the preset feature is: the UE fails in the handover, and the target handover in which the handover failure occurs is failed. The channel measurement result of the cell is higher than the predetermined threshold.

With reference to the second aspect or the first possible implementation manner of the second aspect, in the second possible implementation manner of the second aspect, the indication information includes:

The RLF reports and/or the information indicating that the cell of the second base station is an unbalanced cell in uplink and downlink;

The second base station learns, according to the indication information, the access failure situation that occurs in the cell of the second base station, including:

The second base station learns, according to the RLF report and/or the information indicating that the cell of the second base station is an uplink-downlink unbalanced cell, the access failure situation that occurs in the cell of the second base station.

With reference to the second possible implementation manner of the second aspect, in a third possible implementation manner of the second aspect, the second base station reports and/or indicates that the cells of the second base station are up and down according to the RLF report After the information about the unbalanced cell is used to obtain the access failure situation in the cell of the second base station, the method further includes:

The second base station broadcasts a notification message after determining that the first cell of the second base station is an uplink-downlink unbalanced cell according to the RLF report and/or the information indicating that the cell of the second base station is an uplink-downlink unbalanced cell , which is used to notify the UE in the first cell that it is forbidden to access the first cell again after an access failure.

In a third aspect, an embodiment of the present invention provides a method for sending indication information, including:

The first base station receives the indication information sent by the user equipment UE, the indication information includes the cell identifier of the cell where the UE connection establishment fails, the first base station is after the UE connection establishment fails and the UE successfully establishes a wireless connection. The resource controls the base station to which the RRC-connected cell belongs;

The first base station forwards the indication information to the second base station to which the second cell corresponding to the cell identity belongs, according to the cell identifier, so that the second base station can learn the information about the location of the second cell according to the indication information. A connection establishment failure occurred.

With reference to the third aspect, in a first possible implementation manner of the third aspect, the indication information further includes: the total number of times that the UE fails to establish a connection, or the number of consecutive connection establishment failures of the UE, or the The specific reason why the UE connection establishment fails.

With reference to the third aspect or the first possible implementation manner of the third aspect, in a second possible implementation manner of the third aspect, before the first base station receives the indication information sent by the user equipment UE, the method further includes:

receiving, by the first base station, a first indication message sent by the UE, where the first indication message is used to indicate that the UE stores the indication information;

The first base station requests the UE to send the indication information according to the first indication message.

In a fourth aspect, an embodiment of the present invention provides a method for sending indication information, including:

After the user equipment UE fails to establish a radio resource control RRC connection, it records indication information, where the indication information includes the cell identifier of the cell where the UE connection establishment fails;

After the UE and the first base station establish an RRC connection, the UE sends the indication information to the first base station, which is used by the first base station to report to the first base station according to the cell identifier to which the second cell corresponding to the cell identifier belongs. The second base station of the second base station forwards the indication information, so that the second base station can learn the connection establishment failure situation in the second cell according to the indication information.

With reference to the fourth aspect, in a first possible implementation manner of the fourth aspect, the indication information further includes: the total number of times that the UE fails to establish a connection, or the number of consecutive connection establishment failures of the UE, or the The specific reason why the UE connection establishment fails.

With reference to the fourth aspect or the first possible implementation manner of the fourth aspect, in a second possible implementation manner of the fourth aspect, after the UE sends the indication information to the first base station, the method further includes:

The UE clears the recorded indication information.

With reference to the method described in any one of the fourth aspect to the second possible implementation manner of the fourth aspect, in a third possible implementation manner of the fourth aspect, the UE sends the indication to the first base station Before the information, it also includes:

The UE sends a first indication message to the first base station, where the first indication message is used for the first base station to know that the UE stores the indication information, and to request the indication information according to the first indication message The UE sends the indication information to the first base station.

In a fifth aspect, an embodiment of the present invention provides a method for receiving indication information, including:

The second base station receives the indication information forwarded by the first base station, where the indication information is sent by the user equipment UE to the first base station, and the indication information includes the cell identifier of the cell where the connection establishment of the UE fails. The base station is a base station to which the UE successfully establishes a radio resource control RRC connection after the UE fails to establish a connection, and the second base station is a base station to which the cell corresponding to the cell identifier belongs;

The second base station learns, according to the indication information, a situation of connection establishment failure occurring in the cell corresponding to the cell identifier.

With reference to the fifth aspect, in a first possible implementation manner of the fifth aspect, after the second base station learns, according to the indication information, the connection establishment failure that occurs in the cell corresponding to the cell identifier, the method further includes:

The second base station determines, according to the indication information, that the cell corresponding to the cell identifier is an unbalanced cell in uplink and downlink, and broadcasts a notification message, which is used to notify UEs in the cell corresponding to the cell identifier to be prohibited from accessing again after access failure. Enter the cell corresponding to the cell identifier.

In a sixth aspect, an embodiment of the present invention provides a base station, including:

A receiving module, configured to receive a radio link failure RLF report, the RLF report is sent by the user equipment UE or forwarded by a third base station, the third base station A base station that successfully establishes a radio resource control RRC connection;

a processing module, configured to compare the RLF report received by the receiving module with a preset feature;

a sending module, configured to send indication information to a second base station when the processing module determines that the RLF report conforms to the preset feature, so that the second base station can know the second base station according to the indication information Access failure in the cell of the base station;

The base station is a source cell base station where the handover failure of the UE occurs, and the second base station is a target handover cell base station where the handover failure occurs for the UE.

With reference to the sixth aspect, in a first possible implementation manner of the sixth aspect, the RLF report includes at least the identity of the target handover cell and the reason for the handover failure, and the preset feature is: the UE is handed over failure, and the reason for the handover failure is that the random access channel RACH fails; or,

The RLF report includes at least the identity of the target handover cell and the identity of the re-establishment target cell, and the preset feature is: the identity of the re-establishment target cell is the same as the identity of the target handover cell; or,

The RLF report includes at least: information on whether the re-establishment is successful, and the preset feature is: the re-establishment fails; or,

The RLF report includes at least: the identity of the target handover cell and the channel measurement result of the target handover cell where the handover failure occurs, and the preset feature is: the UE fails in the handover, and the target handover in which the handover failure occurs is failed. The channel measurement result of the cell is higher than the predetermined threshold.

With reference to the sixth aspect or the first possible implementation manner of the sixth aspect, in a second possible implementation manner of the sixth aspect, the indication information includes:

The RLF reports and/or the information indicating that the cell of the second base station is an unbalanced cell in uplink and downlink;

The sending module is used for:

Send the RLF report and/or the information indicating that the cell of the second base station is an uplink and downlink unbalanced cell to the second base station, so that the second base station can use the RLF report and/or indicate the first The information that the cell of the second base station is an unbalanced cell in uplink and downlink is used to obtain the access failure situation that occurs in the cell of the second base station.

In a seventh aspect, an embodiment of the present invention provides a base station, including:

The receiving module is configured to receive the indication information sent by the first base station, the indication information is that after the first base station receives the RLF report of the radio link failure, the RLF report is compared with the preset characteristics, and when it is determined that the RLF report is The RLF report is sent when the RLF report matches the preset feature, and the RLF report received by the first base station is sent by the user equipment UE or forwarded by a third base station, where the third base station is located. The base station that the UE successfully establishes a radio resource control RRC connection after the UE handover fails;

a processing module, configured to learn, according to the indication information received by the receiving module, an access failure situation that occurs in the cell of the second base station;

Wherein, the first base station is a source cell base station where the handover failure of the UE occurs, and the base station is a target handover cell base station where the handover failure occurs for the UE.

With reference to the seventh aspect, in a first possible implementation manner of the seventh aspect, the RLF report at least includes the identity of the target handover cell and the reason for the handover failure, and the preset feature is: the UE is handed over failure, and the reason for the handover failure is that the random access channel RACH fails; or,

The RLF report includes at least the identity of the target handover cell and the identity of the re-establishment target cell, and the preset feature is: the identity of the re-establishment target cell is the same as the identity of the target handover cell; or,

The RLF report includes at least: information on whether the re-establishment is successful, and the preset feature is: the re-establishment fails; or,

The RLF report includes at least: the identity of the target handover cell and the channel measurement result of the target handover cell where the handover failure occurs, and the preset feature is: the UE fails in the handover, and the target handover in which the handover failure occurs is failed. The channel measurement result of the cell is higher than the predetermined threshold.

With reference to the seventh aspect or the first possible implementation manner of the seventh aspect, in a second possible implementation manner of the seventh aspect, the indication information includes:

The RLF reports and/or the information indicating that the cell of the second base station is an unbalanced cell in uplink and downlink;

The processing module is used for:

According to the RLF report and/or the information indicating that the cell of the second base station is an uplink-downlink unbalanced cell, the access failure situation in the cell of the second base station is acquired.

With reference to the second possible implementation manner of the seventh aspect, in a third possible implementation manner of the seventh aspect, the processing module is specifically configured to report and/or indicate the cell of the second base station according to the RLF is the information of the uplink and downlink unbalanced cells, and determines that the first cell of the second base station is an uplink and downlink unbalanced cell;

The base station also includes:

The sending module is configured to broadcast a notification message after the processing module determines that the first cell of the second base station is an unbalanced cell in uplink and downlink, and is used to notify the UE in the first cell that the UE in the first cell is prohibited from accessing again after the access failure. into the first cell.

In an eighth aspect, an embodiment of the present invention provides a base station, including:

The receiving module is configured to receive the indication information sent by the user equipment UE, the indication information includes the cell identifier of the cell where the UE connection establishment fails, the base station is after the UE connection establishment fails and the UE successfully establishes a wireless connection The resource controls the base station to which the RRC-connected cell belongs;

a sending module, configured to forward the indication information to a second base station to which the second cell corresponding to the cell identity belongs according to the cell identifier included in the indication information received by the receiving module, for the second base station The situation of connection establishment failure occurring in the second cell is acquired according to the indication information.

With reference to the eighth aspect, in a first possible implementation manner of the eighth aspect, the indication information further includes: the total number of times that the UE fails to establish a connection, or the number of consecutive connection establishment failures of the UE, or the The specific reason why the UE connection establishment fails.

With reference to the eighth aspect or the first possible implementation manner of the eighth aspect, in a second possible implementation manner of the eighth aspect, the receiving module is further configured to: before receiving the indication information sent by the UE, receiving a first indication message sent by the UE, where the first indication message is used to indicate that the UE stores the indication information;

The base station also includes:

A processing module, configured to request the UE to send the indication information according to the first indication message received by the receiving module.

In a ninth aspect, an embodiment of the present invention provides a user equipment, including:

a recording module, configured to record indication information after a radio resource control RRC connection establishment failure occurs, where the indication information includes the cell identifier of the cell where the user equipment UE connection establishment fails;

A sending module, configured to send the indication information recorded by the recording module to the first base station after the UE and the first base station establish an RRC connection, so that the first base station can send the information to the first base station according to the cell identifier. The indication information is forwarded by the second base station to which the second cell corresponding to the cell identifier belongs, for the second base station to know the connection establishment failure that occurs in the second cell according to the indication information.

With reference to the ninth aspect, in a first possible implementation manner of the ninth aspect, the indication information further includes: the total number of times that the UE fails to establish a connection, or the number of consecutive connection establishment failures of the UE, or the The specific reason why the UE connection establishment fails.

With reference to the ninth aspect or the first possible implementation manner of the ninth aspect, in the second possible implementation manner of the ninth aspect, it also includes:

a clearing module, configured to clear the recorded indication information after the sending module sends the indication information to the first base station.

With reference to the user equipment described in any one of the ninth aspect to the second possible implementation manner of the ninth aspect, in a third possible implementation manner of the ninth aspect, the sending module is further configured to:

Before sending the indication information to the first base station, a first indication message is sent to the first base station, where the first indication message is used for the first base station to know that the UE stores the indication information, and requesting the UE to send the indication information to the first base station according to the first indication message.

In a tenth aspect, an embodiment of the present invention provides a base station, including:

a receiving module, configured to receive indication information forwarded by the first base station, where the indication information is sent by the user equipment UE to the first base station, the indication information includes the cell identifier of the cell where the UE connection establishment fails, the The first base station is the base station to which the cell to which the UE successfully establishes the RRC connection after the UE connection establishment fails, and the base station is the base station to which the cell corresponding to the cell identifier belongs;

An acquiring module is configured to acquire, according to the indication information received by the receiving module, a situation of connection establishment failure occurring in the cell corresponding to the cell identifier.

With reference to the tenth aspect, in a first possible implementation manner of the tenth aspect, it also includes:

A processing module, configured to determine, according to the indication information, a connection establishment failure that occurs in the cell corresponding to the cell identifier after the acquiring module acquires the situation of connection establishment failure occurring in the cell corresponding to the cell identifier according to the indication information received by the receiving module. The cell is an uplink and downlink unbalanced cell;

A sending module, configured to broadcast a notification message after the processing module determines, according to the indication information, that the cell corresponding to the cell identifier is an unbalanced cell in uplink and downlink, so as to notify the UE in the cell corresponding to the cell identifier to access the After the failure, it is forbidden to access the cell corresponding to the cell identifier again.

In an eleventh aspect, an embodiment of the present invention provides a base station, including:

a receiver, configured to receive a radio link failure RLF report, where the RLF report is sent by the user equipment UE or forwarded by a third base station, where the third base station communicates with the UE after the handover of the UE fails A base station that successfully establishes a radio resource control RRC connection;

a processor, configured to compare the RLF report received by the receiver with a preset feature;

a transmitter, configured to send indication information to a second base station when the processor determines that the RLF report conforms to the preset feature, so that the second base station can learn the second base station according to the indication information Access failure in the cell of the base station;

The base station is a source cell base station where the handover failure of the UE occurs, and the second base station is a target handover cell base station where the handover failure occurs for the UE.

With reference to the eleventh aspect, in a first possible implementation manner of the eleventh aspect, the RLF report at least includes the identity of the target handover cell and the reason for the handover failure, and the preset feature is: the UE A handover failure occurs, and the reason for the handover failure is that the random access channel RACH fails; or,

The RLF report includes at least the identity of the target handover cell and the identity of the re-establishment target cell, and the preset feature is: the identity of the re-establishment target cell is the same as the identity of the target handover cell; or,

The RLF report at least includes: information on whether the re-establishment is successful, and the preset feature is: the re-establishment fails; or,

The RLF report includes at least: the identity of the target handover cell and the channel measurement result of the target handover cell where the handover failure occurs, and the preset feature is: the UE fails in the handover, and the target handover in which the handover failure occurs is failed. The channel measurement result of the cell is higher than the predetermined threshold.

With reference to the eleventh aspect or the first possible implementation manner of the eleventh aspect, in a second possible implementation manner of the eleventh aspect, the indication information includes:

The RLF reports and/or the information indicating that the cell of the second base station is an unbalanced cell in uplink and downlink;

The transmitter is used for:

Send the RLF report and/or the information indicating that the cell of the second base station is an uplink and downlink unbalanced cell to the second base station, so that the second base station can use the RLF report and/or indicate the first The information that the cell of the second base station is an unbalanced cell in uplink and downlink is used to obtain the access failure situation that occurs in the cell of the second base station.

In a twelfth aspect, an embodiment of the present invention provides a base station, including:

The receiver is configured to receive the indication information sent by the first base station, the indication information is that after the first base station receives the radio link failure RLF report, the RLF report is compared with the preset characteristics, and when it is determined that the RLF report is The RLF report is sent when the RLF report matches the preset feature, and the RLF report received by the first base station is sent by the user equipment UE or forwarded by a third base station, where the third base station is located. The base station that the UE successfully establishes a radio resource control RRC connection after the UE handover fails;

a processor, configured to learn, according to the indication information received by the receiver, an access failure situation that occurs in the cell of the second base station;

Wherein, the first base station is a source cell base station where the handover failure of the UE occurs, and the base station is a target handover cell base station where the handover failure occurs for the UE.

With reference to the twelfth aspect, in a first possible implementation manner of the twelfth aspect, the RLF report at least includes the identity of the target handover cell and the reason for the handover failure, and the preset feature is: the UE A handover failure occurs, and the reason for the handover failure is that the random access channel RACH fails; or,

The RLF report includes at least the identity of the target handover cell and the identity of the re-establishment target cell, and the preset feature is: the identity of the re-establishment target cell is the same as the identity of the target handover cell; or,

The RLF report at least includes: information on whether the re-establishment is successful, and the preset feature is: the re-establishment fails; or,

The RLF report includes at least: the identity of the target handover cell and the channel measurement result of the target handover cell where the handover failure occurs, and the preset feature is: the UE fails in the handover, and the target handover in which the handover failure occurs is failed. The channel measurement result of the cell is higher than the predetermined threshold.

With reference to the twelfth aspect or the first possible implementation manner of the twelfth aspect, in a second possible implementation manner of the twelfth aspect, the indication information includes:

The RLF reports and/or the information indicating that the cell of the second base station is an unbalanced cell in uplink and downlink;

The processor is used to:

According to the RLF report and/or the information indicating that the cell of the second base station is an uplink-downlink unbalanced cell, the access failure situation in the cell of the second base station is acquired.

With reference to the second possible implementation manner of the twelfth aspect, in a third possible implementation manner of the twelfth aspect, the processor is specifically configured to report and/or instruct the second base station according to the RLF information that the cell of the second base station is an uplink and downlink unbalanced cell, and determine that the first cell of the second base station is an uplink and downlink unbalanced cell;

The base station also includes:

A transmitter, configured to broadcast a notification message after the processor determines that the first cell of the second base station is an unbalanced cell in uplink and downlink, to notify the UE in the first cell that the UE in the first cell is prohibited from accessing again after the access failure. into the first cell.

In a thirteenth aspect, an embodiment of the present invention provides a base station, including:

A receiver, configured to receive indication information sent by a user equipment UE, where the indication information includes a cell identifier of a cell where the UE fails to establish a connection, the base station is after the UE fails to establish a connection and the UE successfully establishes a wireless connection The resource controls the base station to which the RRC-connected cell belongs;

a transmitter, configured to forward the indication information to a second base station to which the second cell corresponding to the cell identity belongs according to the cell identifier included in the indication information received by the receiver, for the second base station The situation of connection establishment failure occurring in the second cell is acquired according to the indication information.

With reference to the thirteenth aspect, in a first possible implementation manner of the thirteenth aspect, the indication information further includes: the total number of times that the UE fails to establish a connection, or the number of consecutive times that the UE fails to establish a connection, or The specific reason why the UE connection establishment fails.

With reference to the thirteenth aspect or the first possible implementation manner of the thirteenth aspect, in a second possible implementation manner of the thirteenth aspect, the receiver is further configured to: after receiving the indication sent by the UE Before the information, receive a first indication message sent by the UE, where the first indication message is used to indicate that: the UE stores the indication information;

The base station also includes:

and a processor, configured to request the UE to send the indication information according to the first indication message received by the receiver.

In a fourteenth aspect, an embodiment of the present invention provides a user equipment, including:

a processor, configured to record indication information after a radio resource control RRC connection establishment failure occurs, where the indication information includes a cell identifier of a cell where the user equipment UE connection establishment fails;

A transmitter, configured to send the indication information recorded by the recorder to the first base station after the UE and the first base station establish an RRC connection, so that the first base station can send the information to the first base station according to the cell identifier. The indication information is forwarded by the second base station to which the second cell corresponding to the cell identifier belongs, for the second base station to know the connection establishment failure that occurs in the second cell according to the indication information.

With reference to the fourteenth aspect, in a first possible implementation manner of the fourteenth aspect, the indication information further includes: the total number of times that the UE fails to establish a connection, or the number of consecutive times that the UE fails to establish a connection, or The specific reason why the UE connection establishment fails.

With reference to the fourteenth aspect or the first possible implementation manner of the fourteenth aspect, in a second possible implementation manner of the fourteenth aspect, the processor is further configured to:

After the transmitter sends the indication information to the first base station, the recorded indication information is cleared.

With reference to the user equipment described in any one of the fourteenth aspect to the second possible implementation manner of the fourteenth aspect, in the third possible implementation manner of the fourteenth aspect, the transmitter is further configured to :

Before sending the indication information to the first base station, a first indication message is sent to the first base station, where the first indication message is used for the first base station to know that the UE stores the indication information, and requesting the UE to send the indication information to the first base station according to the first indication message.

In a fifteenth aspect, an embodiment of the present invention provides a base station, including:

a receiver, configured to receive the indication information forwarded by the first base station, where the indication information is sent by the user equipment UE to the first base station, the indication information includes the cell identifier of the cell where the connection establishment of the UE fails, the The first base station is the base station to which the cell to which the UE successfully establishes the RRC connection after the UE connection establishment fails, and the base station is the base station to which the cell corresponding to the cell identifier belongs;

The processor is configured to acquire, according to the indication information received by the receiver, a connection establishment failure situation that occurs in the cell corresponding to the cell identifier.

With reference to the fifteenth aspect, in a first possible implementation manner of the fifteenth aspect, the processor is further configured to:

After learning the failure of connection establishment in the cell corresponding to the cell identifier according to the indication information received by the receiver, determine, according to the indication information, that the cell corresponding to the cell identifier is an uplink-downlink unbalanced cell;

a transmitter, configured to broadcast a notification message after the processor determines, according to the indication information, that the cell corresponding to the cell identifier is an unbalanced cell in uplink and downlink, so as to notify the UE in the cell corresponding to the cell identifier that the access After the failure, it is forbidden to access the cell corresponding to the cell identifier again.

In the method and apparatus for sending and receiving indication information provided by the embodiments of the present invention, an RLF report is received by the first base station, the RLF report is sent by the UE or forwarded by the third base station, and then the first base station compares the RLF report with the preset feature After comparison, if the RLF report matches the preset characteristics, the first base station sends indication information to the second base station, so that the second base station controls the behavior of the UE after the access failure of the cell included by the second base station according to the indication information. Therefore, after the UE fails to access or handover in a certain cell, the cell can know the reason for the failure of access or handover in its own coverage area through the indication information, so as to control the access or handover of the UE in the cell for the base station to which the cell belongs. Provides conditions for behavior after an entry or switch failure.

Description of drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description These are some embodiments of the present invention, and for those of ordinary skill in the art, other drawings can also be obtained from these drawings without any creative effort.

FIG. 1 is a flowchart of Embodiment 1 of a method for sending indication information according to the present invention;

2 is a flowchart of Embodiment 1 of a method for receiving indication information according to the present invention;

3 is a flowchart of Embodiment 2 of a method for sending indication information according to the present invention;

4 is a flowchart of Embodiment 3 of a method for sending indication information according to the present invention;

FIG. 5 is a flowchart of Embodiment 2 of a method for receiving indication information according to the present invention;

FIG. 6 is a schematic structural diagram of Embodiment 1 of a base station according to the present invention;

FIG. 7 is a schematic structural diagram of Embodiment 2 of a base station according to the present invention;

FIG. 8 is a schematic structural diagram of Embodiment 3 of a base station according to the present invention;

FIG. 9 is a schematic structural diagram of Embodiment 4 of a base station according to the present invention;

FIG. 10 is a schematic structural diagram of Embodiment 5 of a base station according to the present invention;

FIG. 11 is a schematic structural diagram of Embodiment 1 of a user equipment according to the present invention;

FIG. 12 is a schematic structural diagram of Embodiment 2 of a user equipment according to the present invention;

13 is a schematic structural diagram of Embodiment 6 of a base station according to the present invention;

14 is a schematic structural diagram of Embodiment 7 of a base station according to the present invention;

FIG. 15 is a schematic structural diagram of Embodiment 8 of a base station according to the present invention;

16 is a schematic structural diagram of Embodiment 9 of a base station according to the present invention;

17 is a schematic structural diagram of Embodiment 10 of a base station according to the present invention;

FIG. 18 is a schematic structural diagram of Embodiment 11 of a base station according to the present invention;

FIG. 19 is a schematic structural diagram of Embodiment 12 of a base station according to the present invention;

FIG. 20 is a schematic structural diagram of Embodiment 3 of a user equipment according to the present invention;

FIG. 21 is a schematic structural diagram of Embodiment 13 of a base station according to the present invention;

FIG. 22 is a schematic structural diagram of Embodiment 14 of a base station according to the present invention.

Detailed ways

In order to make the purposes, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments These are some embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

FIG. 1 is a flowchart of Embodiment 1 of a method for sending indication information according to the present invention. As shown in FIG. 1 , the method in this embodiment may include:

S101. The first base station receives a radio link failure (Radio link failure, hereinafter referred to as: RLF) report, the RLF report is sent by the UE or forwarded by a third base station, and the third base station is after the handover of the UE fails and the UE succeeds A base station that establishes a radio resource control (Radio Resource Control, RRC for short) connection.

Wherein, the first base station is the base station of the source cell where the handover of the UE fails, and the second base station is the base station of the target handover cell where the handover of the UE fails.

Specifically, the RLF report is sent by the UE or forwarded by the third base station. The following uses the Chiba phenomenon as an example to describe the sending of the RLF report. For example, the first base station is the base station where cell A is located, the second base station is the base station where cell B is located, the UE is in cell A, there is a water surface between cell A and cell B, cell C is adjacent to cell A, and the UE works in cell A, Gradually move closer to cell B. The network judges that it needs to handover to cell B according to the measurement of the downlink signal, and triggers the handover. After the handover is triggered, the UE fails in the uplink random access channel (RACH) process of cell B, and the handover fails due to the inability to access. After the handover fails, the UE performs cell selection, selects cell B, and initiates RRC connection re-establishment to cell B, but the re-establishment fails again. The UE records the RLF report, which includes handover failure and re-establishment failure information. Specifically, it may include: source cell identity, target handover cell identity, re-establishment target cell identity, reasons for the handover failure, channel measurement results of the target handover cell where the handover failure occurs, and/or information on whether the re-establishment is successful. The UE reselects to cell C or cell A due to movement, and reports the RLF report. If it is reported to cell C, cell C forwards the report to serving cell A before the failure.

S102. The first base station compares the RLF report with a preset feature.

S103. When it is determined that the RLF report conforms to the preset feature, the first base station sends indication information to the second base station for the second base station to know the access failure situation in the cell of the second base station according to the indication information.

Among them, optional:

The RLF report includes at least the identity of the target handover cell and the reason for the handover failure, and the preset features are: the UE fails to handover, and the reason for the handover failure is the RACH failure; or,

The RLF report at least includes the identity of the target handover cell and the identity of the re-establishment target cell, and the preset feature is: the identity of the re-establishment target cell is the same as the identity of the target handover cell; or,

The RLF report includes at least: information on whether the re-establishment is successful, and the preset feature is: the re-establishment fails; or,

The RLF report includes at least: the identity of the target handover cell and the channel measurement result of the target handover cell where the handover failure occurs. The preset feature is: the UE fails in the handover, and the channel measurement result of the target handover cell where the handover failure occurs is higher than a predetermined threshold value.

Specifically, the indication information includes: an RLF report and/or information indicating that the cell of the second base station is an unbalanced cell in uplink and downlink.

The first base station sends indication information to the second base station, which is used for the second base station to know, according to the indication information, the access failure situation in the cell of the second base station, which specifically includes:

The first base station sends an RLF report and/or information indicating that the cell of the second base station is an uplink-downlink unbalanced cell to the second base station, which is used by the second base station according to the RLF report and/or indicates that the cell of the second base station is an uplink-downlink unbalanced cell The information of the cell acquires the access failure situation that occurs in the cell of the second base station. Specifically, it provides conditions for the second base station to control the behavior of the UE after access or handover failure. For example, when the second base station learns that there is a Chiba phenomenon in the area covered by itself, it can control the behavior of the UE after the access failure, so as to prevent the UE from continuously trying to access the cell after the access failure of the cell.

In the method for sending indication information provided in this embodiment, the first base station receives the RLF report, the RLF report is sent by the UE or forwarded by the third base station, and then the first base station compares the RLF report with the preset features, and when When it is determined that the RLF report conforms to the preset characteristics, the first base station sends indication information to the second base station, and the second base station can learn the access failure situation in the cell of the second base station according to the indication information. Therefore, after the UE fails to access or handover in a certain cell, the cell can know the reason for the failure of access or handover in its own coverage area through the indication information, so as to control the access or handover of the UE in the cell for the base station to which the cell belongs. Provides conditions for behavior after an entry or switch failure.

FIG. 2 is a flowchart of Embodiment 1 of a method for receiving indication information according to the present invention. As shown in FIG. 2 , the method of this embodiment may include:

S201. The second base station receives the indication information sent by the first base station.

The indication information is sent when the first base station compares the RLF report with the preset features after receiving the RLF report, and when it is determined that the RLF report is consistent with the preset features, the RLF report received by the first base station is sent by the UE or is forwarded by a third base station, where the third base station is a base station that successfully establishes an RRC connection with the UE after the handover of the UE fails.

Wherein, the first base station is the base station of the source cell where the handover of the UE fails, and the second base station is the base station of the target handover cell where the handover of the UE fails.

Among them, optional:

The RLF report includes at least the identity of the target handover cell and the reason for the handover failure, and the preset features are: the UE fails to handover, and the reason for the handover failure is the RACH failure; or,

The RLF report at least includes the identity of the target handover cell and the identity of the re-establishment target cell, and the preset feature is: the identity of the re-establishment target cell is the same as the identity of the target handover cell; or,

The RLF report includes at least: information on whether the re-establishment is successful, and the preset feature is: the re-establishment fails; or,

The RLF report includes at least: the identity of the target handover cell and the channel measurement result of the target handover cell where the handover failure occurs. The preset feature is: the UE fails in the handover, and the channel measurement result of the target handover cell where the handover failure occurs is higher than a predetermined threshold value.

S202. The second base station learns, according to the indication information, the access failure situation that occurs in the cell of the second base station.

Specifically, the indication information includes: an RLF report and/or information indicating that the cell of the second base station is an unbalanced cell in uplink and downlink.

The second base station learns, according to the indication information, the access failures that occur in the cell of the second base station, including:

The second base station learns, according to the RLF report and/or the information indicating that the cell of the second base station is an uplink-downlink unbalanced cell, the access failure situation that occurs in the cell of the second base station.

After the second base station learns the access failure in the cell of the second base station, it can control the behavior of the UE after the access failure, so as to prevent the UE from continuously trying to access the cell after the access failure of the cell, and improve the access or handover of the UE. s efficiency. For example, according to the RLF report and/or the information indicating that the cell of the second base station is an unbalanced cell in uplink and downlink, the second base station determines that the first cell of the second base station is an unbalanced cell in uplink and downlink, and then broadcasts a notification message to notify the cells in the first cell The UE is forbidden to access the first cell again after the access failure. It should be noted here that the notification message is used to notify all UEs in the first cell that they are prohibited from accessing the first cell again after access failure.

In the method for sending indication information provided in this embodiment, the target handover cell base station where the UE fails to handover receives the indication information sent by the source cell base station where the handover failure occurs, and then the target handover cell base station learns the access failure in the cell according to the indication information Happening. Therefore, after the UE fails to access or handover in a certain cell, the cell can know the reason for the failure of access or handover in its own coverage area through the indication information, so as to control the access or handover of the UE in the cell for the base station to which the cell belongs. Provides conditions for behavior after an entry or switch failure.

FIG. 3 is a flowchart of Embodiment 2 of a method for sending indication information according to the present invention. As shown in FIG. 3 , in this embodiment, the method in this embodiment may include:

S301. The first base station receives indication information sent by the UE, the indication information includes the cell identifier of the cell where the UE connection establishment fails, and the first base station is the base station to which the UE successfully establishes the RRC connection after the UE connection establishment fails.

S302: The first base station forwards the indication information to the second base station to which the second cell corresponding to the cell identity belongs according to the cell ID, so that the second base station can learn the connection establishment failure in the second cell according to the indication information.

Further, the indication information further includes: the total number of times that the UE fails to establish a connection, or the number of consecutive times that the UE fails to establish a connection.

The indication information may also include: specific reasons for the failure of connection establishment, such as not receiving a preamble confirmation, or not receiving an RRC connection establishment confirmation message.

Further, before S301, it also includes:

S303. The first base station receives a first indication message sent by the UE, where the first indication message is used to indicate that the UE stores indication information;

S304. The first base station requests the UE to send the indication information according to the indication message.

In the method for sending indication information provided by this embodiment, after the UE fails to establish a connection and the base station to which the UE successfully establishes an RRC connection belongs, after receiving the indication information sent by the UE, the base station sends the indication information to the second corresponding to the cell identity according to the cell identifier in the indication information. The base station to which the cell belongs forwards the indication information, which is used by the second base station to know, according to the indication information, the connection establishment failure that occurs in the second cell. Therefore, after the UE fails to establish a connection in a certain cell, the cell can know the reason for the failure to establish the connection within its own coverage area through the indication information, so as to control the UE to which the cell belongs to after the failure to establish the connection occurs in the cell. behavior provides conditions.

FIG. 4 is a flowchart of Embodiment 3 of a method for sending indication information according to the present invention. As shown in FIG. 4 , in this embodiment, the method in this embodiment may include:

S401. After the UE fails to establish an RRC connection, record indication information, where the indication information includes a cell identifier or a channel measurement result of a cell where the UE fails to establish a connection.

Specifically, the UE initiates a connection establishment request process, starts a timer, and still does not receive an RRC connection establishment message after the timer expires, and considers that the connection establishment fails, and then records the indication information. The UE may record information corresponding to the last connection establishment failure, or record corresponding information for each connection establishment failure. Specifically, the UE may record the total number of connection establishment failures, or the number of consecutive connection establishment failures. For example, the process of initiating a connection establishment request for the first time fails, the second succeeds, the third fails, and the fourth fails, the total number of failures is 3, and the number of consecutive failures is 2. Further, the indication information further includes: the total number of times of UE connection establishment failures or the number of consecutive UE connection establishment failures.

More specifically, in a Long Term Evolution (Long Term Evolution, LTE for short) network, the sending process of an RRC connection establishment request is as follows:

First, the layer 3 (RRC layer) of the UE generates an RRC connection establishment request message, starts the T300 timer and sends it to the cache of layer 2. Layer 2 refers to the medium access control (Medium Access Control, referred to as: MAC) layer or radio link The Radio Link Control (RLC for short) layer. Second, layer 2 receives the RRC connection establishment request message, triggers the random access process, and sends a preamble sequence to the base station to request access. If the confirmation of the preamble sequence is received, send the RRC connection establishment request message in the cache to the base station (eNB), and then wait for the RRC connection establishment confirmation message. The sending process of the request failed. If the confirmation of the preamble sequence is not received, the preamble sequence is reselected and sent. If the confirmation of the preamble sequence is still not received after the T300 timeout, the sending process of the RRC connection establishment request this time fails.

A failure in the sending process of the RRC connection establishment request after a T300 timeout is an RRC connection establishment failure at the access layer. After the failure, the access stratum no longer initiates an RRC connection establishment request, and then waits for the indication of the non-access stratum. If the non-access stratum instructs the UE access stratum to send the RRC connection establishment request again, the UE starts T300 again to send. In the LTE system, every time the RRC connection establishment is triggered by the non-access stratum, the access stratum only triggers the failure of the RRC connection establishment at most once. But there are other wireless access systems, such as the Universal Mobile Telecommunications System (UMTS), where an RRC connection establishment process triggered by the non-access stratum, the UE can trigger multiple RRC connection establishment request processes at the access stratum , which can further trigger multiple RRC connection establishment failures. It should be noted that, the RRC connection establishment failures counted by the present invention are all corresponding to the requests of the non-access stratum. No matter how many RRC connection establishment failures occur in the access stratum during an RRC connection establishment request triggered by the non-access stratum, it is counted as one RRC connection failure. The RRC connection establishment failure counted by the present invention is actually the number of connection establishment failure times received by the non-access stratum.

Further, the indication information may also include: specific reasons for the failure of connection establishment, such as not receiving a preamble confirmation, or not receiving an RRC connection establishment confirmation message.

S402. After the UE establishes the RRC connection with the first base station, the UE sends indication information to the first base station, so that the first base station forwards the indication information to the second base station to which the second cell corresponding to the cell identity belongs according to the cell identifier, for the second base station The base station learns, according to the indication information, the failure of connection establishment in the second cell.

Further, after the UE sends the indication information to the first base station in S402, the method further includes:

S403. The UE clears the recorded indication information. After clearing, the UE restarts to count the number of failures.

Further, before the UE sends the indication information to the first base station in S402, the method further includes:

S404: The UE sends a first indication message to the first base station, where the first indication message is used to indicate that the first base station learns that the UE stores indication information, and requests the UE to send indication information to the first base station according to the first indication message.

In the method for sending indication information provided in this embodiment, after the UE fails to establish an RRC connection, the indication information is recorded, and after the UE establishes the RRC connection with the first base station, the UE sends the indication information to the first base station, which is used by the first base station according to the cell identifier. The indication information is forwarded to the second base station to which the second cell corresponding to the cell identifier belongs, so that the second base station can learn the connection establishment failure in the second cell according to the indication information. Therefore, after the UE fails to establish a connection in a certain cell, the cell can know the reason for the failure to establish the connection within its own coverage area through the indication information, so as to control the UE to which the cell belongs to after the failure to establish the connection occurs in the cell. behavior provides conditions.

FIG. 5 is a flowchart of Embodiment 2 of a method for receiving indication information according to the present invention. As shown in FIG. 5 , in this embodiment, the method in this embodiment may include:

S501. The second base station receives the indication information forwarded by the first base station, the indication information is sent by the UE to the first base station, the indication information includes the cell identifier of the cell where the UE connection establishment fails, and the first base station communicates with the UE after the UE connection establishment fails. In the cell where the RRC connection is successfully established, the second base station is the base station to which the cell corresponding to the cell identifier belongs.

S502 , the second base station learns, according to the indication information, the connection establishment failure that occurs in the cell corresponding to the cell identifier.

Further, after the second base station learns, according to the indication information, that the connection establishment failure occurs in the cell corresponding to the cell identifier, the second base station further includes:

S503. The second base station determines, according to the indication information, that the cell corresponding to the cell ID is an unbalanced cell in uplink and downlink, and broadcasts a notification message, which is used to notify the UE in the cell corresponding to the cell ID to prohibit re-accessing the cell corresponding to the cell ID after the access fails. .

In the method for receiving indication information provided in this embodiment, after receiving the indication information forwarded by the first base station through the second base station, the connection establishment failure in the cell corresponding to the cell identifier included in the indication information is obtained according to the indication information. Therefore, after the UE fails to establish a connection in a certain cell, the cell can know the reason for the failure to establish the connection within its own coverage area through the indication information, so as to control the UE to which the cell belongs to after the failure to establish the connection occurs in the cell. behavior provides conditions.

FIG. 6 is a schematic structural diagram of Embodiment 1 of a base station according to the present invention. As shown in FIG. 6 , the base station in this embodiment may include: a receiving module 11, a processing module 12, and a sending module 13, wherein the receiving module 11 is configured to receive an RLF report, The RLF report is sent by the UE or forwarded by a third base station, and the third base station is a base station that successfully establishes an RRC connection with the UE after the handover of the UE fails. The processing module 12 is configured to compare the RLF report received by the receiving module 11 with preset features. The sending module 13 is configured to send indication information to the second base station when the processing module 12 determines that the RLF report conforms to the preset characteristics, so that the second base station can know the access failure situation in the cell of the second base station according to the indication information. Wherein, the base station is the base station of the source cell where the handover of the UE fails, and the second base station is the base station of the target handover cell where the handover of the UE fails.

Among them, optional:

The RLF report includes at least the identity of the target handover cell and the reason for the handover failure, and the preset features are: the UE fails to handover, and the reason for the handover failure is the RACH failure; or,

The RLF report at least includes the identity of the target handover cell and the identity of the re-establishment target cell, and the preset feature is: the identity of the re-establishment target cell is the same as the identity of the target handover cell; or,

The RLF report includes at least: information on whether the re-establishment is successful, and the preset feature is: the re-establishment fails; or,

The RLF report includes at least: the identity of the target handover cell and the channel measurement result of the target handover cell where the handover failure occurs. The preset feature is: the UE fails in the handover, and the channel measurement result of the target handover cell where the handover failure occurs is higher than a predetermined threshold value.

In the above embodiment, the indication information includes: an RLF report and/or information indicating that the cell of the second base station is an unbalanced cell in uplink and downlink.

The sending module 12 is used for:

Send an RLF report and/or information indicating that the cell of the second base station is an unbalanced cell in uplink and downlink to the second base station, which is used by the second base station according to the RLF report and/or information indicating that the cell of the second base station is an unbalanced cell in uplink and downlink Acquire the access failure situation that occurs in the cell of the second base station.

The apparatus in this embodiment can be used to execute the technical solution of the method embodiment shown in FIG. 1 , and the implementation principle thereof is similar, which is not repeated here.

The base station provided in this embodiment receives the RLF report through the receiving module, and the RLF report is sent by the UE or forwarded by the third base station, and then the sending module compares the RLF report with the preset features. When the characteristics are matched, the indication information is sent to the second base station, and the second base station can learn the access failure situation in the cell of the second base station according to the indication information. Therefore, after the UE fails to access or handover in a certain cell, the cell can know the reason for the failure of access or handover in its own coverage area through the indication information, so as to control the access or handover of the UE in the cell for the base station to which the cell belongs. Provides conditions for behavior after an entry or switch failure.

FIG. 7 is a schematic structural diagram of Embodiment 2 of a base station according to the present invention. As shown in FIG. 7 , the base station in this embodiment may include: a receiving module 21 and a processing module 22, wherein the receiving module 21 is configured to receive indication information sent by the first base station , the indication information is sent when the first base station compares the RLF report with the preset features after receiving the RLF report, and when it is determined that the RLF report is consistent with the preset features, the RLF report received by the first base station is sent by the UE Sent or forwarded by a third base station, where the third base station is a base station that successfully establishes an RRC connection with the UE after the handover of the UE fails. The processing module 22 is configured to know, according to the indication information received by the receiving module 21, the access failure situation that occurs in the cell of the second base station. Wherein, the first base station is the base station of the source cell where the handover of the UE fails, and the base station is the base station of the target handover cell where the handover of the UE fails.

Among them, optional:

The RLF report includes at least the identity of the target handover cell and the reason for the handover failure, and the preset features are: the UE fails to handover, and the reason for the handover failure is the RACH failure; or,

The RLF report at least includes the identity of the target handover cell and the identity of the re-establishment target cell, and the preset feature is: the identity of the re-establishment target cell is the same as the identity of the target handover cell; or,

The RLF report includes at least: information on whether the re-establishment is successful, and the preset feature is: the re-establishment fails; or,

The RLF report includes at least: the identity of the target handover cell and the channel measurement result of the target handover cell where the handover failure occurs. The preset feature is: the UE fails in the handover, and the channel measurement result of the target handover cell where the handover failure occurs is higher than a predetermined threshold value.

In the above embodiment, the indication information includes: an RLF report and/or information indicating that the cell of the base station is an unbalanced cell in uplink and downlink.

The processing module 22 is used to:

According to the RLF report and/or the information indicating that the cell of the base station is an uplink-downlink unbalanced cell, the access failure situation in the cell of the second base station is acquired.

FIG. 8 is a schematic structural diagram of Embodiment 3 of a base station according to the present invention. As shown in FIG. 8 , the base station in this embodiment may further include a sending module 23 on the basis of the base station shown in FIG. 7 .

The processing module 22 is specifically configured to determine that the first cell of the second base station is an uplink-downlink unbalanced cell according to the RLF report and/or information indicating that the cell of the second base station is an uplink-downlink unbalanced cell. The sending module 23 is configured to broadcast a notification message after the processing module 22 determines that the first cell of the second base station is an uplink-downlink unbalanced cell, and is configured to notify the UE in the first cell that it is forbidden to access the first cell again after access failure.

The apparatuses in the embodiments shown in FIG. 7 and FIG. 8 can be used to implement the technical solutions of the method embodiments shown in FIG. 2 , and the implementation principles and technical effects thereof are similar, and are not repeated here.

In the base station provided by the embodiments shown in FIG. 7 and FIG. 8 , the receiving module receives the indication information sent by the base station of the source cell where the handover fails, and then the processing module learns the access that occurs in the cell of the second base station according to the indication information received by the receiving module. failure condition. Therefore, after the UE fails to access or handover in a certain cell, the cell can know the reason for the failure of access or handover in its own coverage area through the indication information, so as to control the access or handover of the UE in the cell for the base station to which the cell belongs. Provides conditions for behavior after an entry or switch failure.

FIG. 9 is a schematic structural diagram of Embodiment 4 of a base station according to the present invention. As shown in FIG. 9 , the apparatus in this embodiment may include: a receiving module 31 and a sending module 32, wherein the receiving module 31 is configured to receive indication information sent by the UE, indicating that The information includes the cell identifier of the cell where the UE connection establishment fails, and the base station is the cell that successfully establishes the RRC connection with the UE after the UE connection establishment fails. The sending module 32 is configured to forward the indication information to the base station to which the second cell corresponding to the cell identity belongs according to the cell identity included in the indication information received by the receiving module 31, so that the second base station can learn the connection establishment failure that occurs in the second cell according to the indication information Happening.

The indication information further includes: the total number of times that the UE fails to establish a connection, or the number of times that the UE fails to establish a continuous connection, or the specific reason for the failure of the UE to establish a connection.

The apparatus of this embodiment can be used to execute the technical solution of the method embodiment shown in FIG. 3 , and its implementation principle and technical effect are similar, and details are not repeated here.

In the base station provided in this embodiment, after receiving the indication information sent by the UE through the receiving module, the transmitting module forwards the indication information to the base station to which the second cell corresponding to the cell identity belongs according to the cell identifier in the indication information, so that the second base station can use the indication information according to the indication information. Acquire the connection establishment failure that occurs in the second cell. Therefore, after the UE fails to establish a connection in a certain cell, the cell can know the reason for the failure to establish the connection within its own coverage area through the indication information, so as to control the UE to which the cell belongs to after the failure to establish the connection occurs in the cell. behavior provides conditions.

FIG. 10 is a schematic structural diagram of Embodiment 5 of the base station according to the present invention. As shown in FIG. 10 , the base station in this embodiment may further include a processing module 33 on the basis of the base station shown in FIG. 9 .

Wherein, further, the receiving module 31 is further configured to: before receiving the indication information sent by the UE, receive a first indication message sent by the UE, where the first indication message is used to indicate that the UE stores the indication information.

The processing module 33 is configured to request the UE to send the indication information according to the first indication message.

The apparatus of this embodiment can be used to execute the technical solution of the method embodiment shown in FIG. 3 , and its implementation principle and technical effect are similar, and details are not repeated here.

FIG. 11 is a schematic structural diagram of Embodiment 1 of the user equipment according to the present invention. As shown in FIG. 11 , the user equipment in this embodiment may include: a recording module 41 and a sending module 42 , wherein the recording module 41 is used for RRC connection establishment failure when an RRC connection fails to be established. Afterwards, the indication information is recorded, and the indication information includes the cell identifier of the cell where the UE connection establishment fails. The sending module 42 is configured to send the indication information recorded by the recording module 41 to the first base station after the UE establishes an RRC connection with the first base station, so that the first base station can send the second base station to which the second cell corresponding to the cell identification belongs to the first base station according to the cell identification. Forwarding the indication information is used for the second base station to know, according to the indication information, a connection establishment failure situation in the second cell.

The indication information further includes: the total number of times that the UE fails to establish a connection, or the number of times that the UE fails to establish a continuous connection, or the specific reason for the failure of the UE to establish a connection.

The apparatus in this embodiment can be used to execute the technical solution of the method embodiment shown in FIG. 4 , and the implementation principle and technical effect thereof are similar, and are not repeated here.

In the user equipment provided in this embodiment, the recording module records the indication information after the UE fails to establish the RRC connection, and the sending module sends the indication information to the first base station after the UE establishes the RRC connection with the first base station for the first base station. The indication information is forwarded to the second base station to which the second cell corresponding to the cell identity belongs according to the cell identity, so that the second base station can learn the connection establishment failure in the second cell according to the indication information. Therefore, after the UE fails to establish a connection in a certain cell, the cell can know the reason for the failure to establish the connection within its own coverage area through the indication information, so as to control the UE to which the cell belongs to after the failure to establish the connection occurs in the cell. behavior provides conditions.

FIG. 12 is a schematic structural diagram of Embodiment 2 of the user equipment according to the present invention. As shown in FIG. 12 , the user equipment of this embodiment, on the basis of the user equipment shown in FIG. 11 , may further include: a clearing module 43 , which clears The module 43 is configured to clear the recorded indication information after the sending module 42 sends the indication information to the first base station.

In the above-mentioned embodiment, the sending module 42 is also used for:

Before sending the indication information to the first base station, a first indication message is sent to the first base station. The first indication message is used for the first base station to know that the UE has stored indication information, and to request the UE to send an indication to the first base station according to the first indication message. information.

FIG. 13 is a schematic structural diagram of Embodiment 6 of a base station according to the present invention. As shown in FIG. 13 , the base station in this embodiment may include: a receiving module 51 and a learning module 52, wherein the receiving module 51 is configured to receive the indication information forwarded by the first base station , the indication information is sent by the UE to the first base station, and the indication information includes the cell identifier of the cell where the UE connection establishment fails. The first base station is the base station to which the UE successfully establishes the RRC connection after the UE connection establishment fails, and the base station is the cell Identifies the base station to which the corresponding cell belongs. The acquiring module 52 is configured to acquire, according to the indication information received by the receiving module 51, the connection establishment failure situation that occurs in the cell corresponding to the cell identifier.

The apparatus of this embodiment can be used to execute the technical solution of the method embodiment shown in FIG. 5 , and the implementation principle and technical effect thereof are similar, and are not repeated here.

In the base station provided in this embodiment, after receiving the indication information forwarded by the first base station through the receiving module, the acquiring module acquires the connection establishment failure situation in the cell corresponding to the cell identifier according to the indication information received by the receiving module. Therefore, after the UE fails to establish a connection in a certain cell, the cell can know the reason for the failure to establish the connection within its own coverage area through the indication information, so as to control the UE to which the cell belongs to after the failure to establish the connection occurs in the cell. behavior provides conditions.

FIG. 14 is a schematic structural diagram of Embodiment 7 of a base station according to the present invention. As shown in FIG. 14 , the base station in this embodiment may further include a processing module 53 and a sending module 54 on the basis of the base station shown in FIG. 13 . The processing module 53 is configured to determine, according to the indication information, that the cell corresponding to the cell ID is an uplink-downlink unbalanced cell after the obtaining module 52 obtains the connection establishment failure in the cell corresponding to the cell ID according to the indication information received by the receiving module 51 . The sending module 54 is configured to broadcast a notification message after the processing module 53 determines that the cell corresponding to the cell identifier is an unbalanced cell in uplink and downlink according to the indication information, and is used to notify the UE in the cell corresponding to the cell identifier to be prohibited from accessing the cell again after the access failure. Identifies the corresponding cell.

The apparatus of this embodiment can be used to execute the technical solution of the method embodiment shown in FIG. 5 , and the implementation principle and technical effect thereof are similar, and are not repeated here.

FIG. 15 is a schematic structural diagram of Embodiment 8 of a base station according to the present invention. As shown in FIG. 15 , the base station in this embodiment may include: a receiver 61, a processor 62, and a transmitter 63, where the receiver 61 is configured to receive an RLF report, The RLF report is sent by the UE or forwarded by a third base station, and the third base station is a base station that successfully establishes an RRC connection with the UE after the handover of the UE fails. The processor 62 is configured to compare the RLF report received by the receiver 61 with preset characteristics. The transmitter 63 is configured to send indication information to the second base station when the processor 62 determines that the RLF report conforms to the preset characteristics, so that the second base station can learn the access failure situation in the cell of the second base station according to the indication information. Wherein, the base station is the base station of the source cell where the handover of the UE fails, and the second base station is the base station of the target handover cell where the handover of the UE fails.

Among them, optional:

The RLF report includes at least the identity of the target handover cell and the reason for the handover failure, and the preset features are: the UE fails to handover, and the reason for the handover failure is the RACH failure; or,

The RLF report at least includes the identity of the target handover cell and the identity of the re-establishment target cell, and the preset feature is: the identity of the re-establishment target cell is the same as the identity of the target handover cell; or,

The RLF report includes at least: information on whether the re-establishment is successful, and the preset feature is: the re-establishment fails; or,

The RLF report includes at least: the identity of the target handover cell and the channel measurement result of the target handover cell where the handover failure occurs. The preset feature is: the UE fails in the handover, and the channel measurement result of the target handover cell where the handover failure occurs is higher than a predetermined threshold value.

In the above embodiment, the indication information includes: an RLF report and/or information indicating that the cell of the second base station is an unbalanced cell in uplink and downlink.

Transmitter 62 is used to:

Send an RLF report and/or information indicating that the cell of the second base station is an unbalanced cell in uplink and downlink to the second base station, which is used by the second base station according to the RLF report and/or information indicating that the cell of the second base station is an unbalanced cell in uplink and downlink Acquire the access failure situation that occurs in the cell of the second base station.

The apparatus in this embodiment can be used to execute the technical solution of the method embodiment shown in FIG. 1 , and the implementation principle thereof is similar, which is not repeated here.

The base station provided in this embodiment receives the RLF report through the receiver, the RLF report is sent by the UE or forwarded by the third base station, and then the transmitter compares the RLF report with the preset features, and when it is determined that the RLF report is When the characteristics are matched, the indication information is sent to the second base station, and the second base station can learn the access failure situation in the cell of the second base station according to the indication information. Therefore, after the UE fails to access or handover in a certain cell, the cell can know the reason for the failure of access or handover in its own coverage area through the indication information, so as to control the access or handover of the UE in the cell for the base station to which the cell belongs. Provides conditions for behavior after an entry or switch failure.

FIG. 16 is a schematic structural diagram of Embodiment 9 of a base station according to the present invention. As shown in FIG. 16 , the base station in this embodiment may include: a receiver 71 and a processor 72, where the receiver 71 is configured to receive indication information sent by the first base station , the indication information is sent when the first base station compares the RLF report with the preset features after receiving the RLF report, and when it is determined that the RLF report is consistent with the preset features, the RLF report received by the first base station is sent by the UE Sent or forwarded by a third base station, where the third base station is a base station that successfully establishes an RRC connection with the UE after the handover of the UE fails. The processor 72 is configured to learn, according to the indication information received by the receiver 71, an access failure situation that occurs in the cell of the second base station. Wherein, the first base station is the base station of the source cell where the handover of the UE fails, and the base station is the base station of the target handover cell where the handover of the UE fails.

Among them, optional:

The RLF report includes at least the identity of the target handover cell and the reason for the handover failure, and the preset features are: the UE fails to handover, and the reason for the handover failure is the RACH failure; or,

The RLF report at least includes the identity of the target handover cell and the identity of the re-establishment target cell, and the preset feature is: the identity of the re-establishment target cell is the same as the identity of the target handover cell; or,

The RLF report includes at least: information on whether the re-establishment is successful, and the preset feature is: the re-establishment fails; or,

The RLF report includes at least: the identity of the target handover cell and the channel measurement result of the target handover cell where the handover failure occurs. The preset feature is: the UE fails in the handover, and the channel measurement result of the target handover cell where the handover failure occurs is higher than a predetermined threshold value.

In the above embodiment, the indication information includes: an RLF report and/or information indicating that the cell of the base station is an unbalanced cell in uplink and downlink.

Processor 72 is used to:

According to the RLF report and/or the information indicating that the cell of the base station is an uplink-downlink unbalanced cell, the access failure situation in the cell of the second base station is acquired.

FIG. 17 is a schematic structural diagram of Embodiment 10 of a base station according to the present invention. As shown in FIG. 17 , the base station in this embodiment may further include a transmitter 73 on the basis of the base station shown in FIG. 16 .

The processor 72 is specifically configured to determine that the first cell of the second base station is an uplink-downlink unbalanced cell according to the RLF report and/or information indicating that the cell of the second base station is an uplink-downlink unbalanced cell. The transmitter 73 is configured to broadcast a notification message after the processor 72 determines that the first cell of the second base station is an unbalanced cell in uplink and downlink, and is configured to notify the UE in the first cell that it is forbidden to access the first cell again after access failure.

The apparatuses in the embodiments shown in FIG. 16 and FIG. 17 can be used to implement the technical solutions of the method embodiments shown in FIG. 2 , and the implementation principles and technical effects thereof are similar, and are not repeated here.

In the base station provided by the embodiments shown in FIG. 16 and FIG. 17 , the receiver receives the indication information sent by the base station of the source cell in which the handover failed, and then the processor learns the access that occurs in the cell of the second base station according to the indication information received by the receiver. failure condition. Therefore, after the UE fails to access or handover in a certain cell, the cell can know the reason for the failure of access or handover in its own coverage area through the indication information, so as to control the access or handover of the UE in the cell for the base station to which the cell belongs. Provides conditions for behavior after an entry or switch failure.

FIG. 18 is a schematic structural diagram of Embodiment 11 of a base station according to the present invention. As shown in FIG. 18 , the apparatus of this embodiment may include: a receiver 81 and a transmitter 82, wherein the receiver 81 is configured to receive indication information sent by the UE, The indication information includes the cell identifier of the cell where the UE connection establishment fails, and the base station is the cell that successfully establishes the RRC connection with the UE after the UE connection establishment fails. The transmitter 82 is configured to forward the indication information to the base station to which the second cell corresponding to the cell identity belongs according to the cell identity included in the indication information received by the receiver 81 , so that the second base station can learn, according to the indication information, that the connection establishment failure occurred in the second cell. Happening.

The indication information further includes: the total number of times that the UE fails to establish a connection, or the number of times that the UE fails to establish a continuous connection, or the specific reason for the failure of the UE to establish a connection.

The apparatus of this embodiment can be used to execute the technical solution of the method embodiment shown in FIG. 3 , and its implementation principle and technical effect are similar, and details are not repeated here.

In the base station provided in this embodiment, after receiving the indication information sent by the UE through the receiver, the transmitter forwards the indication information to the base station to which the second cell corresponding to the cell identity belongs according to the cell identifier in the indication information, so that the second base station can use the indication information according to the indication information. Acquire the connection establishment failure that occurs in the second cell. Therefore, after the UE fails to establish a connection in a certain cell, the cell can know the reason for the failure to establish the connection within its own coverage area through the indication information, so as to control the UE to which the cell belongs to after the failure to establish the connection occurs in the cell. behavior provides conditions

FIG. 19 is a schematic structural diagram of Embodiment 12 of the base station according to the present invention. As shown in FIG. 19 , the base station of this embodiment may further include a processor 83 on the basis of the base station shown in FIG. 18 .

Wherein, further, the receiver 81 is further configured to: before receiving the indication information sent by the UE, receive a first indication message sent by the UE, where the first indication message is used to indicate that the UE stores the indication information.

The processor 83 is configured to request the UE to send the indication information according to the first indication message.

The apparatus of this embodiment can be used to execute the technical solution of the method embodiment shown in FIG. 3 , and its implementation principle and technical effect are similar, and details are not repeated here.

FIG. 20 is a schematic structural diagram of Embodiment 3 of the user equipment according to the present invention. As shown in FIG. 20, the user equipment in this embodiment may include: a processor 91 and a transmitter 92, where the processor 91 is configured to fail to establish an RRC connection when an RRC connection fails to be established. Afterwards, the indication information is recorded, and the indication information includes the cell identifier of the cell where the UE connection establishment fails. The transmitter 92 is configured to send the indication information recorded by the processor 91 to the first base station after the UE establishes the RRC connection with the first base station, so that the first base station can send the second base station to which the second cell corresponding to the cell identification belongs to the first base station according to the cell identification. Forwarding the indication information is used for the second base station to know, according to the indication information, a connection establishment failure situation in the second cell.

The indication information further includes: the total number of times that the UE fails to establish a connection, or the number of times that the UE fails to establish a continuous connection, or the specific reason for the failure of the UE to establish a connection.

Further, the processor 91 is further configured to clear the recorded indication information after the transmitter 92 sends the indication information to the first base station.

In the above embodiment, the transmitter 92 is also used for:

Before sending the indication information to the first base station, a first indication message is sent to the first base station. The first indication message is used for the first base station to know that the UE has stored indication information, and to request the UE to send an indication to the first base station according to the first indication message. information.

The apparatus in this embodiment can be used to execute the technical solution of the method embodiment shown in FIG. 4 , and the implementation principle and technical effect thereof are similar, and are not repeated here.

In the user equipment provided in this embodiment, the processor records the indication information after the UE fails to establish the RRC connection, and the transmitter sends the indication information to the first base station after the UE establishes the RRC connection with the first base station, which is used for the first base station The indication information is forwarded to the second base station to which the second cell corresponding to the cell identity belongs according to the cell identity, so that the second base station can learn the connection establishment failure in the second cell according to the indication information. Therefore, after the UE fails to establish a connection in a certain cell, the cell can know the reason for the failure to establish the connection within its own coverage area through the indication information, so as to control the UE to which the cell belongs to after the failure to establish the connection occurs in the cell. behavior provides conditions.

FIG. 21 is a schematic structural diagram of Embodiment 13 of a base station according to the present invention. As shown in FIG. 21 , the base station in this embodiment may include: a receiver 101 and a processor 102, where the receiver 101 is configured to receive an indication forwarded by the first base station information, the indication information is sent by the UE to the first base station, and the indication information includes the cell identifier of the cell where the UE connection establishment fails. The first base station is the base station to which the UE successfully establishes the RRC connection after the UE connection establishment fails. The base station is The cell identifier corresponds to the base station to which the cell belongs. The processor 102 is configured to acquire, according to the indication information received by the receiver 101, a connection establishment failure situation that occurs in a cell corresponding to the cell identifier.

The apparatus of this embodiment can be used to execute the technical solution of the method embodiment shown in FIG. 5 , and the implementation principle and technical effect thereof are similar, and are not repeated here.

In the base station provided in this embodiment, after receiving the indication information forwarded by the first base station through the receiver, the processor learns, according to the indication information received by the receiver, that the connection establishment failure occurred in the cell corresponding to the cell identifier. Therefore, after the UE fails to establish a connection in a certain cell, the cell can know the reason for the failure to establish the connection within its own coverage area through the indication information, so as to control the UE to which the cell belongs to after the failure to establish the connection occurs in the cell. behavior provides conditions.

FIG. 22 is a schematic structural diagram of Embodiment 14 of a base station according to the present invention. As shown in FIG. 22 , the base station in this embodiment may further include a processor 103 and a transmitter 104 on the basis of the base station shown in FIG. 21 . The processor 103 is configured to determine, according to the indication information, that the cell corresponding to the cell identity is an uplink-downlink unbalanced cell after learning the connection establishment failure in the cell corresponding to the cell identity according to the indication information received by the receiver 101 . The transmitter 104 is configured to broadcast a notification message after the processor 103 determines, according to the indication information, that the cell corresponding to the cell identifier is an unbalanced cell in uplink and downlink, and is configured to notify the UE in the cell corresponding to the cell identifier to be prohibited from accessing the cell again after the access failure. Identifies the corresponding cell.

The apparatus of this embodiment can be used to execute the technical solution of the method embodiment shown in FIG. 5 , and the implementation principle and technical effect thereof are similar, and are not repeated here.

In the several embodiments provided by the present invention, it should be understood that the disclosed apparatus and method may be implemented in other manners. For example, the apparatus embodiments described above are only illustrative. For example, the division of the units is only a logical function division. In actual implementation, there may be other division methods. For example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored, or not implemented. On the other hand, the shown or discussed mutual coupling or direct coupling or communication connection may be through some interfaces, indirect coupling or communication connection of devices or units, and may be in electrical, mechanical or other forms.

The units described as separate components may or may not be physically separated, and components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution in this embodiment.

In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically alone, or two or more units may be integrated into one unit. The above-mentioned integrated unit may be implemented in the form of hardware, or may be implemented in the form of hardware plus software functional units.

The above-mentioned integrated units implemented in the form of software functional units can be stored in a computer-readable storage medium. The above-mentioned software function unit is stored in a storage medium, and includes several instructions to cause a computer device (which may be a personal computer, a server, or a network device, etc.) or a processor (processor) to execute the methods described in the various embodiments of the present invention. some steps. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), magnetic disk or optical disk and other media that can store program codes .

Those skilled in the art can clearly understand that, for the convenience and brevity of the description, only the division of the above functional modules is used for illustration. The internal structure is divided into different functional modules to complete all or part of the functions described above. For the specific working process of the apparatus described above, reference may be made to the corresponding process in the foregoing method embodiments, and details are not described herein again.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, but not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: The technical solutions described in the foregoing embodiments can still be modified, or some or all of the technical features thereof can be equivalently replaced; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the technical solutions of the embodiments of the present invention. scope.

Claims (30)

1. An indication information sending method, comprising:

a first base station receives a Radio Link Failure (RLF) report, wherein the RLF report is sent by User Equipment (UE) or forwarded by a third base station, and the third base station is a base station which successfully establishes Radio Resource Control (RRC) connection with the UE after the UE fails to switch;

the first base station compares the RLF report with preset characteristics;

when the RLF report is determined to be consistent with the preset characteristics, the first base station sends indication information to a second base station, and the indication information is used for the second base station to acquire the access failure condition in the cell of the second base station according to the indication information; the indication information includes: the RLF report and information indicating that the cell of the second base station is an uplink and downlink unbalanced cell;

the first base station is a source cell base station of the UE which fails the switching, and the second base station is a target cell base station of the UE which fails the switching.

2. The method of claim 1,

the RLF report at least includes the identity of the target handover cell and the reason for handover failure, and the preset features are: the UE has a switching failure, and the reason of the switching failure is the failure of a Random Access Channel (RACH); or,

the RLF report at least includes an identifier of the target handover cell and an identifier of a reestablished target cell, where the preset characteristic is: the identification of the reestablished target cell is the same as the identification of the target switching cell; or,

the RLF report includes at least: reestablishing information on whether the reestablishment is successful, wherein the preset characteristics are as follows: the reconstruction fails; or,

the RLF report includes at least: the identifier of the target handover cell and the channel measurement result of the target handover cell in which the handover failure occurs are preset features as follows: and the UE fails to switch, and the channel measurement result of the target switching cell which fails to switch is higher than a preset threshold value.

3. An indication information receiving method, comprising:

the second base station receives indication information sent by the first base station, wherein the indication information is sent by the first base station after receiving a Radio Link Failure (RLF) report, the RLF report is compared with a preset characteristic, when the RLF report is determined to be consistent with the preset characteristic, the RLF report received by the first base station is sent by User Equipment (UE) or forwarded by a third base station, and the third base station is a base station which successfully establishes Radio Resource Control (RRC) connection with the UE after the UE fails to switch; the indication information includes: the RLF report and information indicating that the cell of the second base station is an uplink and downlink unbalanced cell;

the second base station acquires the access failure condition occurring in the cell of the second base station according to the indication information;

the second base station judges that a first cell of the second base station is an uplink and downlink unbalanced cell according to the indication information, and then broadcasts a notification message for notifying the UE in the first cell of prohibiting to access the first cell again after the access fails;

the first base station is a source cell base station of the UE which fails the switching, and the second base station is a target cell base station of the UE which fails the switching.

4. The method of claim 3,

the RLF report at least includes the identity of the target handover cell and the reason for handover failure, and the preset features are: the UE has a switching failure, and the reason of the switching failure is the failure of a Random Access Channel (RACH); or,

the RLF report at least includes an identifier of the target handover cell and an identifier of a reestablished target cell, where the preset characteristic is: the identification of the reestablished target cell is the same as the identification of the target switching cell; or,

the RLF report includes at least: reestablishing information on whether the reestablishment is successful, wherein the preset characteristics are as follows: the reconstruction fails; or,

the RLF report includes at least: the identifier of the target handover cell and the channel measurement result of the target handover cell in which the handover failure occurs are preset features as follows: and the UE fails to switch, and the channel measurement result of the target switching cell which fails to switch is higher than a preset threshold value.

5. An indication information sending method, comprising:

a first base station receives indication information sent by User Equipment (UE), wherein the indication information comprises a cell identifier of a cell in which connection establishment of the UE fails, and the first base station is a base station to which the cell in which Radio Resource Control (RRC) connection is successfully established with the UE after the connection establishment of the UE fails; the indication information further includes: the total number of times of connection establishment failure of the UE, or the number of times of continuous connection establishment failure of the UE, or a specific reason of the connection establishment failure of the UE; the specific reasons for the connection establishment failure include: the preamble acknowledgement is not received, or the RRC connection establishment acknowledgement message is not received;

and the first base station forwards the indication information to a second base station to which a second cell corresponding to the cell identifier belongs according to the cell identifier, so that the second base station can know the connection establishment failure condition occurring in the second cell according to the indication information.

6. The method of claim 5, wherein before the first base station receives the indication information sent by the UE, the method further comprises:

the first base station receives a first indication message sent by the UE, wherein the first indication message is used for indicating: the UE stores the indication information;

and the first base station requests the UE to send the indication information according to the first indication message.

7. An indication information sending method, comprising:

recording indication information after a Radio Resource Control (RRC) connection is failed to establish by User Equipment (UE), wherein the indication information comprises a cell identifier of a cell in which the UE connection fails to establish; the indication information further includes: the total number of times of connection establishment failure of the UE, or the number of times of continuous connection establishment failure of the UE, or a specific reason of the connection establishment failure of the UE; the specific reasons for the connection establishment failure include: the preamble acknowledgement is not received, or the RRC connection establishment acknowledgement message is not received;

after the UE establishes RRC connection with a first base station, the UE sends the indication information to the first base station, so that the first base station forwards the indication information to a second base station to which a second cell corresponding to the cell identifier belongs according to the cell identifier, and the second base station acquires a connection establishment failure condition occurring in the second cell according to the indication information.

8. The method of claim 7, wherein after the UE sends the indication information to the first base station, the method further comprises:

the UE clears the recorded indication information.

9. The method according to claim 7 or 8, wherein before the UE sends the indication information to the first base station, the method further comprises:

and the UE sends a first indication message to the first base station, wherein the first indication message is used for the first base station to know that the UE stores the indication information, and requests the UE to send the indication information to the first base station according to the first indication message.

10. An indication information receiving method, comprising:

the method comprises the steps that a second base station receives indication information forwarded by a first base station, wherein the indication information is sent to the first base station by User Equipment (UE), the indication information comprises a cell identifier of a cell in which connection establishment of the UE fails, the first base station is a base station to which a cell in which Radio Resource Control (RRC) connection is successfully established with the UE after the connection establishment of the UE fails, and the second base station is a base station to which the cell corresponding to the cell identifier belongs; the indication information further includes: the total number of times of connection establishment failure of the UE, or the number of times of continuous connection establishment failure of the UE, or a specific reason of the connection establishment failure of the UE; the specific reasons for the connection establishment failure include: the preamble acknowledgement is not received, or the RRC connection establishment acknowledgement message is not received;

the second base station acquires the connection establishment failure condition occurring in the cell corresponding to the cell identifier according to the indication information;

and the second base station broadcasts a notification message after judging that the cell corresponding to the cell identifier is an uplink and downlink unbalanced cell according to the indication information, and the notification message is used for notifying the UE in the cell corresponding to the cell identifier to forbid to access the cell corresponding to the cell identifier again after the access fails.

11. A base station, comprising:

a receiving module, configured to receive a Radio Link Failure (RLF) report, where the RLF report is sent by a User Equipment (UE) or forwarded by a third base station, and the third base station is a base station that successfully establishes a Radio Resource Control (RRC) connection with the UE after a handover failure of the UE;

the processing module is used for comparing the RLF report received by the receiving module with preset characteristics;

a sending module, configured to send, when the processing module determines that the RLF report matches the preset feature, indication information to a second base station, where the indication information is used by the second base station to obtain an access failure condition occurring in a cell of the second base station; the indication information includes: the RLF report and information indicating that the cell of the second base station is an uplink and downlink unbalanced cell;

the base station is a source cell base station of the UE which fails the switching, and the second base station is a target cell base station of the UE which fails the switching.

12. The base station of claim 11,

the RLF report at least includes the identity of the target handover cell and the reason for handover failure, and the preset features are: the UE has a switching failure, and the reason of the switching failure is the failure of a Random Access Channel (RACH); or,

the RLF report at least includes an identifier of the target handover cell and an identifier of a reestablished target cell, where the preset characteristic is: the identification of the reestablished target cell is the same as the identification of the target switching cell; or,

the RLF report includes at least: reestablishing information on whether the reestablishment is successful, wherein the preset characteristics are as follows: the reconstruction fails; or,

the RLF report includes at least: the identifier of the target handover cell and the channel measurement result of the target handover cell in which the handover failure occurs are preset features as follows: and the UE fails to switch, and the channel measurement result of the target switching cell which fails to switch is higher than a preset threshold value.

13. A second base station, comprising:

a receiving module, configured to receive indication information sent by a first base station, where the indication information is sent by the first base station after receiving a Radio Link Failure (RLF) report, and the RLF report is compared with a preset feature, and when it is determined that the RLF report matches the preset feature, the RLF report received by the first base station is sent by a User Equipment (UE) or forwarded by a third base station, where the third base station is a base station that successfully establishes Radio Resource Control (RRC) connection with the UE after the UE fails to handover; the indication information includes: the RLF report and information indicating that the cell of the second base station is an uplink and downlink unbalanced cell;

a processing module, configured to obtain, according to the indication information received by the receiving module, an access failure condition occurring in the cell of the second base station;

the processing module is specifically configured to determine, according to the indication information, that the first cell of the second base station is an uplink/downlink unbalanced cell;

a sending module, configured to broadcast a notification message after the processing module determines that the first cell of the second base station is an uplink/downlink unbalanced cell, to notify the UE in the first cell that the UE is prohibited to re-access the first cell after the access fails;

the first base station is a source cell base station of the UE which fails the switching, and the second base station is a target cell base station of the UE which fails the switching.

14. The second base station of claim 13,

the RLF report at least includes the identity of the target handover cell and the reason for handover failure, and the preset features are: the UE has a switching failure, and the reason of the switching failure is the failure of a Random Access Channel (RACH); or,

the RLF report at least includes an identifier of the target handover cell and an identifier of a reestablished target cell, where the preset characteristic is: the identification of the reestablished target cell is the same as the identification of the target switching cell; or,

the RLF report includes at least: reestablishing information on whether the reestablishment is successful, wherein the preset characteristics are as follows: the reconstruction fails; or,

the RLF report includes at least: the identifier of the target handover cell and the channel measurement result of the target handover cell in which the handover failure occurs are preset features as follows: and the UE fails to switch, and the channel measurement result of the target switching cell which fails to switch is higher than a preset threshold value.

15. A base station, comprising:

a receiving module, configured to receive indication information sent by a user equipment UE, where the indication information includes a cell identifier of a cell in which connection establishment of the UE fails, and the base station is a base station to which a cell in which radio resource control RRC connection is successfully established with the UE after the connection establishment of the UE fails; the indication information further includes: the total number of times of connection establishment failure of the UE, or the number of times of continuous connection establishment failure of the UE, or a specific reason of the connection establishment failure of the UE; the specific reasons for the connection establishment failure include: the preamble acknowledgement is not received, or the RRC connection establishment acknowledgement message is not received;

a sending module, configured to forward the indication information to a second base station to which a second cell corresponding to the cell identifier belongs according to the cell identifier included in the indication information received by the receiving module, so that the second base station learns, according to the indication information, a connection establishment failure occurring in the second cell.

16. The base station of claim 15, wherein the receiving module is further configured to: before receiving the indication information sent by the UE, receiving a first indication message sent by the UE, where the first indication message is used to indicate: the UE stores the indication information;

the base station further comprises:

a processing module, configured to request the UE to send the indication information according to the first indication message received by the receiving module.

17. A user device, comprising:

the recording module is used for recording indication information after the radio resource control RRC connection establishment fails, wherein the indication information comprises a cell identifier of a cell in which the connection establishment of user equipment UE fails; the indication information further includes: the total number of times of connection establishment failure of the UE, or the number of times of continuous connection establishment failure of the UE, or a specific reason of the connection establishment failure of the UE; the specific reasons for the connection establishment failure include: the preamble acknowledgement is not received, or the RRC connection establishment acknowledgement message is not received;

a sending module, configured to send, to the first base station, the indication information recorded by the recording module after the UE establishes RRC connection with the first base station, so that the first base station forwards, according to the cell identifier, the indication information to a second base station to which a second cell corresponding to the cell identifier belongs, and the second base station learns, according to the indication information, a connection establishment failure condition occurring in the second cell.

18. The user equipment of claim 17, further comprising:

a clearing module, configured to clear the recorded indication information after the sending module sends the indication information to the first base station.

19. The ue of claim 17 or 18, wherein the sending module is further configured to:

and before sending the indication information to the first base station, sending a first indication message to the first base station, where the first indication message is used for the first base station to know that the UE stores the indication information, and requesting the UE to send the indication information to the first base station according to the first indication message.

20. A base station, comprising:

a receiving module, configured to receive indication information forwarded by a first base station, where the indication information is sent to the first base station by a user equipment UE, the indication information includes a cell identifier of a cell in which connection establishment of the UE fails, the first base station is a base station to which a cell in which radio resource control RRC connection is successfully established with the UE after the connection establishment of the UE fails, and the base station is a base station to which a cell corresponding to the cell identifier belongs; the indication information further includes: the total number of times of connection establishment failure of the UE, or the number of times of continuous connection establishment failure of the UE, or a specific reason of the connection establishment failure of the UE; the specific reasons for the connection establishment failure include: the preamble acknowledgement is not received, or the RRC connection establishment acknowledgement message is not received;

a learning module, configured to learn, according to the indication information received by the receiving module, a connection establishment failure condition occurring in a cell corresponding to the cell identifier;

a processing module, configured to determine, according to the indication information received by the receiving module, that the cell corresponding to the cell identifier is an uplink/downlink unbalanced cell after the learning module learns, according to the indication information received by the receiving module, that the connection establishment failure occurring in the cell corresponding to the cell identifier is a failure;

a sending module, configured to broadcast a notification message after the processing module determines, according to the indication information, that the cell corresponding to the cell identifier is an uplink/downlink unbalanced cell, and is used to notify the UE in the cell corresponding to the cell identifier that the UE is prohibited to re-access the cell corresponding to the cell identifier after the access fails.

21. A base station, comprising:

a receiver, configured to receive a Radio Link Failure (RLF) report, where the RLF report is sent by a User Equipment (UE) or forwarded by a third base station, and the third base station is a base station that successfully establishes a Radio Resource Control (RRC) connection with the UE after a handover failure of the UE;

a processor for comparing the RLF report received by the receiver with a preset signature;

a transmitter, configured to send, when the processor determines that the RLF report matches the preset feature, indication information to a second base station, where the indication information is used for the second base station to obtain, according to the indication information, an access failure condition occurring in a cell of the second base station; the indication information includes: the RLF report and information indicating that the cell of the second base station is an uplink and downlink unbalanced cell;

the base station is a source cell base station of the UE which fails the switching, and the second base station is a target cell base station of the UE which fails the switching.

22. The base station of claim 21,

the RLF report at least includes the identity of the target handover cell and the reason for handover failure, and the preset features are: the UE has a switching failure, and the reason of the switching failure is the failure of a Random Access Channel (RACH); or,

the RLF report at least includes an identifier of the target handover cell and an identifier of a reestablished target cell, where the preset characteristic is: the identification of the reestablished target cell is the same as the identification of the target switching cell; or,

the RLF report includes at least: reestablishing information on whether the reestablishment is successful, wherein the preset characteristics are as follows: the reconstruction fails; or,

the RLF report includes at least: the identifier of the target handover cell and the channel measurement result of the target handover cell in which the handover failure occurs are preset features as follows: and the UE fails to switch, and the channel measurement result of the target switching cell which fails to switch is higher than a preset threshold value.

23. A second base station, comprising:

a receiver, configured to receive indication information sent by a first base station, where the indication information is sent by the first base station after receiving a Radio Link Failure (RLF) report, and the RLF report is compared with a preset feature, and when it is determined that the RLF report matches the preset feature, the RLF report received by the first base station is sent by a User Equipment (UE) or forwarded by a third base station, where the third base station is a base station that successfully establishes Radio Resource Control (RRC) connection with the UE after the UE fails to handover; the indication information includes: the RLF report and information indicating that the cell of the second base station is an uplink and downlink unbalanced cell;

a processor, configured to obtain, according to the indication information received by the receiver, an access failure condition occurring in a cell of the second base station;

the processor is specifically configured to determine, according to the indication information, that the first cell of the second base station is an uplink/downlink unbalanced cell;

a transmitter, configured to broadcast a notification message after the processor determines that the first cell of the second base station is an uplink/downlink unbalanced cell, to notify the UE in the first cell that the UE is prohibited to access the first cell again after the access fails;

the first base station is a source cell base station of the UE which fails the switching, and the second base station is a target cell base station of the UE which fails the switching.

24. The second base station of claim 23,

the RLF report at least includes the identity of the target handover cell and the reason for handover failure, and the preset features are: the UE has a switching failure, and the reason of the switching failure is the failure of a Random Access Channel (RACH); or,

the RLF report at least includes an identifier of the target handover cell and an identifier of a reestablished target cell, where the preset characteristic is: the identification of the reestablished target cell is the same as the identification of the target switching cell; or,

the RLF report includes at least: reestablishing information on whether the reestablishment is successful, wherein the preset characteristics are as follows: the reconstruction fails; or,

the RLF report includes at least: the identifier of the target handover cell and the channel measurement result of the target handover cell in which the handover failure occurs are preset features as follows: and the UE fails to switch, and the channel measurement result of the target switching cell which fails to switch is higher than a preset threshold value.

25. A base station, comprising:

the base station is a base station to which a cell to which a Radio Resource Control (RRC) connection is successfully established with the UE after the connection establishment of the UE fails; the indication information further includes: the total number of times of connection establishment failure of the UE, or the number of times of continuous connection establishment failure of the UE, or a specific reason of the connection establishment failure of the UE; the specific reasons for the connection establishment failure include: the preamble acknowledgement is not received, or the RRC connection establishment acknowledgement message is not received;

a transmitter, configured to forward the indication information to a second base station to which a second cell corresponding to the cell identifier belongs according to the cell identifier included in the indication information received by the receiver, so that the second base station learns, according to the indication information, a connection establishment failure condition occurring in the second cell.

26. The base station of claim 25, wherein the receiver is further configured to: before receiving the indication information sent by the UE, receiving a first indication message sent by the UE, where the first indication message is used to indicate: the UE stores the indication information;

the base station further comprises:

a processor, configured to request the UE to send the indication information according to the first indication message received by the receiver.

27. A user device, comprising:

the device comprises a processor and a controller, wherein the processor is used for recording indication information after the Radio Resource Control (RRC) connection is failed to establish, and the indication information comprises a cell identifier of a cell which fails to establish the UE connection; the indication information further includes: the total number of times of connection establishment failure of the UE, or the number of times of continuous connection establishment failure of the UE, or a specific reason of the connection establishment failure of the UE; the specific reasons for the connection establishment failure include: the preamble acknowledgement is not received, or the RRC connection establishment acknowledgement message is not received;

and the transmitter is configured to send the recorded indication information to the first base station after the UE establishes RRC connection with the first base station, and is configured to forward, by the first base station, the indication information to a second base station to which a second cell corresponding to the cell identifier belongs according to the cell identifier, so that the second base station learns, according to the indication information, a connection establishment failure occurring in the second cell.

28. The user equipment of claim 27, wherein the processor is further configured to:

clearing the recorded indication information after the transmitter transmits the indication information to the first base station.

29. The user equipment of claim 27 or 28, wherein the transmitter is further configured to:

and before sending the indication information to the first base station, sending a first indication message to the first base station, where the first indication message is used for the first base station to know that the UE stores the indication information, and requesting the UE to send the indication information to the first base station according to the first indication message.

30. A base station, comprising:

a receiver, configured to receive indication information forwarded by a first base station, where the indication information is sent to the first base station by a user equipment UE, the indication information includes a cell identifier of a cell in which connection establishment of the UE fails, the first base station is a base station to which a cell in which radio resource control, RRC, connection is successfully established with the UE after the connection establishment of the UE fails, and the base station is a base station to which a cell corresponding to the cell identifier belongs; the indication information further includes: the total number of times of connection establishment failure of the UE, or the number of times of continuous connection establishment failure of the UE, or a specific reason of the connection establishment failure of the UE; the specific reasons for the connection establishment failure include: the preamble acknowledgement is not received, or the RRC connection establishment acknowledgement message is not received;

a processor, configured to obtain, according to the indication information received by the receiver, a connection establishment failure condition occurring in a cell corresponding to the cell identifier;

the processor is further configured to:

after acquiring the connection establishment failure condition in the cell corresponding to the cell identifier according to the indication information received by the receiver, determining that the cell corresponding to the cell identifier is an uplink and downlink unbalanced cell according to the indication information;

a transmitter, configured to broadcast a notification message after the processor determines, according to the indication information, that the cell corresponding to the cell identifier is an uplink/downlink unbalanced cell, and is used to notify the UE in the cell corresponding to the cell identifier that the UE is prohibited to re-access the cell corresponding to the cell identifier after the access fails.