CN110149731B

CN110149731B - Indication information sending and receiving method and device

Info

Publication number: CN110149731B
Application number: CN201910264820.4A
Authority: CN
Inventors: 李秉肇; 陈燕燕; 支玉亮
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2013-08-06
Filing date: 2013-08-06
Publication date: 2021-04-20
Anticipated expiration: 2033-08-06
Also published as: CN105265006B; CN110149731A; WO2015017975A1; CN105265006A

Abstract

The embodiment of the invention provides an indication information sending and receiving method and a device, wherein the method comprises the following steps: and the first base station receives the RLF report, compares the RLF report with the preset characteristics, and when the RLF report is determined to be consistent with the preset characteristics, the first base station sends indication information to the second base station, so that the second base station can know the access failure condition in the cell of the second base station according to the indication information. The method and the device for sending and receiving the indication information can realize that the cell can know the reason of the access or switching failure in the coverage area of the cell through the indication information after the access or switching failure of the UE occurs in a certain cell, thereby providing conditions for the base station to which the cell belongs to control the behavior of the UE after the access or switching failure of the cell.

Description

Indication information sending and receiving method and device

Technical Field

The embodiment of the invention relates to the technical field of communication, in particular to a method and a device for sending and receiving indication information.

Background

The thousand-leaf phenomenon is a network access failure problem discovered by an operator, and is essentially a region with unbalanced uplink and downlink signal propagation in a cell coverage area, and the specific scene is as follows: for two base stations deployed on both sides of a river, if a User Equipment (User Equipment, hereinafter referred to as UE) is located on the left bank of the river, although the distance between the User Equipment and the right base station is relatively long, the signal strength of a signal from the right base station to the UE is still relatively strong due to reflection of the river surface, and the UE selects for cell reselection according to the signal strength of a downlink signal. Therefore, when the UE reselects a cell near a river bank, or selects a cell to which the right base station belongs, if the UE initiates a service, because the UE is far away from the right base station, an uplink signal sent by the UE cannot reach the right base station, and thus a Random Access Channel (RACH) Access failure occurs. The UE is internally provided with a timer T300, the timer is started when the UE initiates RACH access, the UE always tries RACH access before the timer is overtime, and if the timer is overtime, if the UE is still not successfully accessed, the UE is triggered to stop accessing. Subsequently, if the UE re-initiates access, the above access procedure is repeated, but the UE fails to access all the time. For such cells, handover failure may also occur if the network side triggers handover from the left base station to the right base station. One solution in the prior art is that if a certain cell continuously encounters T300 timeout and access fails, the UE prohibits the cell, and reselects another cell to initiate a service.

However, in practice, the UE may have access or handover failures even if the UE is not in the area of the thousand leaf phenomenon. For example, when uplink load of a cell in a certain time period is heavy, access or handover failure of a UE may also occur, and in the prior art, the UE cannot distinguish access or handover failure caused by a certain reason, so how to effectively identify the reason for access or handover failure occurring in the cell is a problem to be solved.

Disclosure of Invention

The embodiment of the invention provides an indication information sending and receiving method and device, which can realize that a network side can know the condition of access or connection establishment failure in a coverage area of the network side and provide conditions for a base station to control the behavior of UE after the access or connection establishment failure.

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

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 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.

With reference to the first aspect, in a first possible implementation manner of the first aspect, the RLF report at least includes an identifier of the target handover cell and a reason for handover failure, where the preset feature is: 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.

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 information indicating that the cell of the second base station is an uplink and downlink unbalanced cell;

the first base station sends indication information to a second base station, so that the second base station learns the access failure condition occurring in the cell of the second base station according to the indication information, and the method comprises the following steps:

and 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, so that the second base station learns the access failure condition occurring in the cell of the second base station according to the RLF report and/or the information indicating that the cell of the second base station is the uplink and downlink unbalanced cell.

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

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

With reference to the second aspect, in a first possible implementation manner of the second aspect, the RLF report at least includes an identifier of the target handover cell and a 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,

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

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

the second base station learns the access failure condition occurring in the cell of the second base station according to the indication information, and the method comprises the following steps:

and the second base station acquires the access failure condition in the cell of the second base station according to the RLF report and/or the information indicating that the cell of the second base station is an uplink and downlink unbalanced cell.

With reference to the second possible implementation manner of the second aspect, in a third possible implementation manner of the second aspect, after 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, an access failure condition occurring in the cell of the second base station, the method further includes:

and the second base station judges that the first cell of the second base station is an uplink and downlink unbalanced cell and broadcasts a notification message according to the RLF report and/or the information indicating that the cell of the second base station is the uplink and downlink unbalanced cell, so as to notify the UE in the first cell that the UE is forbidden to access the first cell again after the access fails.

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

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;

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.

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 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.

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 receiving, by the first base station, indication information sent by a user equipment UE, the method further includes:

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.

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

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;

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.

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 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.

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 sending, by the UE, the indication information to the first base station, the method further includes:

the UE clears the recorded indication information.

With reference to the method in any one of the second possible implementation manners of the fourth aspect to the fourth aspect, in a third possible implementation manner of the fourth aspect, before the sending, by the UE, the indication information to the first base station, the method further includes:

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.

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

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;

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

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, a connection establishment failure condition occurring in a cell corresponding to the cell identifier, the method further includes:

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.

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, 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 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.

With reference to the sixth aspect, in a first possible implementation manner of the sixth aspect, the RLF report at least includes an identifier of the target handover cell and a 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,

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 sending module is used for:

and sending the 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, so that the second base station can know the access failure condition occurring in the cell of the second base station according to the RLF report and/or the information indicating that the cell of the second base station is the uplink/downlink unbalanced cell.

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

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;

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

With reference to the seventh aspect, in a first possible implementation manner of the seventh aspect, the RLF report at least includes an identifier of the target handover cell and a reason for handover failure, where the preset feature is: the UE has a switching failure, and the reason of the switching failure is the failure of a Random Access Channel (RACH); or,

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 processing module is used for:

and acquiring the access failure condition occurring in the cell of the second base station according to the RLF report and/or the information indicating that the cell of the second base station is an uplink and downlink unbalanced cell.

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 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 base station further comprises:

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, so as to notify the UE in the first cell that the UE is prohibited to re-access the first cell after the access fails.

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

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;

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.

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 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.

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: 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.

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

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;

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.

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 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.

With reference to the ninth aspect or the first possible implementation manner of the ninth aspect, in a second possible implementation manner of the ninth aspect, the method further 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:

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.

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 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;

and a learning module, configured to learn, according to the indication information received by the receiving module, a connection establishment failure condition 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, the method further includes:

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.

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 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;

With reference to the eleventh aspect, in a first possible implementation manner of the eleventh aspect, the RLF report at least includes an identifier of the target handover cell and a 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,

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 transmitter is configured to:

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

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;

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;

With reference to the twelfth aspect, in a first possible implementation manner of the twelfth aspect, the RLF report at least includes an identifier of the target handover cell and a 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,

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 processor is configured to:

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 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 base station further comprises:

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.

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

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;

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.

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 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.

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: 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.

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

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;

and the transmitter is configured to send the indication information recorded by the recorder to the first base station after the UE establishes RRC connection with the first base station, and is 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 by the first base station, so that the second base station learns a connection establishment failure condition occurring 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 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.

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:

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

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

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

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;

and the processor is used for acquiring the connection establishment failure condition which occurs in the cell corresponding to the cell identifier according to the indication information received by the receiver.

With reference to the fifteenth aspect, in a first possible implementation manner of the fifteenth aspect, 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.

The method and the device for sending and receiving the indication information receive the RLF report through the first base station, the RLF report is sent by the UE or forwarded by the third base station, then the first base station compares the RLF report with the preset characteristics, and if the RLF report is consistent with the preset characteristics, the first base station sends the 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 contained in the second base station according to the indication information. Therefore, after the access or switching failure of the UE occurs in a certain cell, the cell can acquire the reason of the access or switching failure in the coverage area of the cell through the indication information, and conditions are provided for the base station to which the cell belongs to control the behavior of the UE after the access or switching failure of the cell.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a flowchart of a first embodiment of a method for sending indication information according to the present invention;

FIG. 2 is a flowchart of an indication information receiving method according to a first embodiment of the present invention;

fig. 3 is a flowchart of a second embodiment of a method for sending indication information according to the present invention;

fig. 4 is a flowchart of a third embodiment of a method for sending indication information according to the present invention;

FIG. 5 is a flowchart of a second embodiment of an indication information receiving method according to the present invention;

fig. 6 is a schematic structural diagram of a base station according to a first embodiment of the present invention;

fig. 7 is a schematic structural diagram of a second base station according to the present invention;

fig. 8 is a schematic structural diagram of a base station according to a third embodiment of the present invention;

fig. 9 is a schematic structural diagram of a base station according to a fourth embodiment of the present invention;

fig. 10 is a schematic structural diagram of a base station according to a fifth embodiment of the present invention;

fig. 11 is a schematic structural diagram of a ue according to a first embodiment of the present invention;

fig. 12 is a schematic structural diagram of a second ue embodiment according to the present invention;

fig. 13 is a schematic structural diagram of a base station according to a sixth embodiment of the present invention;

fig. 14 is a schematic structural diagram of a base station according to a seventh embodiment of the present invention;

fig. 15 is a schematic structural diagram of an eighth embodiment of a base station according to the present invention;

fig. 16 is a schematic structural diagram of a base station according to a ninth embodiment of the present invention;

fig. 17 is a schematic structural diagram of a base station according to a tenth embodiment of the present invention;

fig. 18 is a schematic structural diagram of an eleventh embodiment of a base station according to the present invention;

fig. 19 is a schematic structural diagram of a base station according to a twelfth embodiment of the present invention;

fig. 20 is a schematic structural diagram of a third ue embodiment according to the present invention;

fig. 21 is a schematic structural diagram of a base station according to a thirteenth embodiment of the present invention;

fig. 22 is a schematic structural diagram of a fourteenth base station embodiment of the present invention.

Detailed Description

In order to make the objects, 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 drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Fig. 1 is a flowchart of a first embodiment of a method for sending indication information according to the present invention, as shown in fig. 1, the method of this embodiment may include:

s101, a first base station receives a Radio Link Failure (RLF) report, wherein the RLF report is sent by 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 is a source cell base station of UE which is failed to switch, and the second base station is a target cell base station of UE which is failed to switch.

Specifically, the RLF report is transmitted by the UE or forwarded by the third base station, and the RLF report is transmitted by taking the thousand-leaf phenomenon as an example. For example, the first base station is the base station where the cell a is located, the second base station is the base station where the cell B is located, the UE has a water surface between the cell a and the cell B, the cell C is adjacent to the cell a, and the UE operates in the cell a and gradually moves closer to the cell B. The network judges that the handover to the cell B is needed according to the measurement of the downlink signal, and triggers the handover, after the handover is triggered, the UE fails in the process of uplink Random Access Channel (RACH) of the cell B, and the UE cannot Access to the RACH, so that the handover fails. And after the switching fails, the UE selects the cell, selects the cell B, initiates RRC connection reestablishment to the cell B, and fails to reestablish. The UE records the RLF report including handover failure and re-establishment failure information. The method specifically comprises the following steps: the source cell identification, the target switching cell identification, the target cell identification reestablishment, the reason of the switching failure, the channel measurement result of the target switching cell in which the switching failure occurs, and/or the information of whether the reestablishment is successful. And the UE reselects to the cell C or the cell A due to movement, reports the RLF report, and if the RLF report is reported to the cell C, the cell C forwards the report to the serving cell A before failure.

S102, the first base station compares the RLF report with preset characteristics.

And S103, when the RLF report is determined to be consistent with the preset characteristics, the first base station sends indication information to the 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.

Wherein, optional:

the RLF report at least includes the identifier of the target handover cell and the reason of the handover failure, and the preset features are as follows: UE fails to switch, and the reason of the failure of switching is RACH failure; or,

the RLF report at least includes an identifier of the target handover cell and an identifier of the target cell to be reestablished, and the preset features are as follows: the identification of the target cell is rebuilt to be the same as the identification of the target switching cell; or,

the RLF report includes at least: reestablishing information about whether the information is successful or not, 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 with handover failure are preset with the following characteristics: 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.

Specifically, the indication information includes: the RLF reports and/or indicates the cell of the second base station as an uplink and downlink unbalanced cell.

The method includes that a first base station sends indication information to a second base station, the indication information is used for the second base station to acquire an access failure condition occurring in a cell of the second base station according to the indication information, and the method specifically includes:

and the first base station sends an 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, and the 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 RLF report and/or the information indicating that the cell of the second base station is the uplink and downlink unbalanced cell. In particular, conditions are provided for the second base station to control the behavior of the UE after an access or handover failure. For example, if the second base station knows that the area covered by the second base station has the thousand-leaf phenomenon, the second base station can control the behavior of the UE after the access failure, and avoid that the UE continuously tries to access after the access failure of the cell.

In the method for sending the indication information provided in this embodiment, the first base station receives the RLF report, where 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, and when it is determined that the RLF report matches the preset feature, the first base station sends the indication information to the second base station, and the second base station can know, according to the indication information, an access failure condition occurring in the cell of the second base station. Therefore, after the access or switching failure of the UE occurs in a certain cell, the cell can acquire the reason of the access or switching failure in the coverage area of the cell through the indication information, and conditions are provided for the base station to which the cell belongs to control the behavior of the UE after the access or switching failure of the cell.

Fig. 2 is a flowchart of a first embodiment of an indication information receiving method according to the present invention, and 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 by the first base station 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 the UE or forwarded by a third base station, and the third base station is a base station which successfully establishes RRC connection with the UE after the UE fails to switch.

Wherein, optional:

S202, the second base station learns the access failure condition in the cell of the second base station according to the indication information.

and the second base station acquires the access failure condition occurring in the cell of the second base station according to the RLF report and/or the information indicating that the cell of the second base station is an uplink and downlink unbalanced cell.

After the second base station learns the access failure condition occurring in the cell of the second base station, the second base station can control the behavior of the UE after the access failure, avoid the UE from continuously trying to access after the access failure of the cell, and improve the efficiency of the UE access or switching. For example, the second base station determines 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 the uplink/downlink unbalanced cell, and then broadcasts a notification message to notify the UE in the first cell that the UE is prohibited to access the first cell again after the access fails. It should be noted that the notification message is used to notify all UEs in the first cell to prohibit to access the first cell again after the access fails.

In the method for sending the indication information provided in this embodiment, the target handover cell base station that has failed handover receives the indication information sent by the source cell base station that has failed handover through the UE, and then the target handover cell base station learns the access failure condition occurring in the cell according to the indication information. Therefore, after the access or switching failure of the UE occurs in a certain cell, the cell can acquire the reason of the access or switching failure in the coverage area of the cell through the indication information, and conditions are provided for the base station to which the cell belongs to control the behavior of the UE after the access or switching failure of the cell.

Fig. 3 is a flowchart of a second embodiment of a method for sending indication information according to the present invention, as shown in fig. 3, in this embodiment, the method of this embodiment may include:

s301, the first base station receives indication information sent by the UE, wherein the indication information comprises a cell identifier of a cell in which the UE fails to establish connection, and the first base station is a base station to which the cell in which the UE successfully establishes RRC connection belongs after the UE fails to establish connection.

And S302, the first base station forwards the indication information to a second base station to which the second cell corresponding to the cell identifier belongs according to the cell identifier, so that the second base station can acquire the connection establishment failure condition in the second cell according to the indication information.

Further, the indication information further includes: the total number of connection establishment failures of the UE, or the number of continuous connection establishment failures of the UE.

The indication information may further include: specific reasons for the connection establishment failure, such as not receiving the preamble acknowledgement or not receiving the RRC connection establishment acknowledgement message.

Further, before S301, the method further includes:

s303, the first base station receives a first indication message sent by the UE, where the first indication message is used to indicate: 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 the indication information, after the connection establishment of the UE fails and the base station to which the cell to which the UE successfully establishes the RRC connection belongs receives the indication information sent by the UE, the indication information is forwarded to the base station to which the second cell corresponding to the cell identifier belongs according to the cell identifier in the indication information, so that the second base station learns the connection establishment failure condition occurring in the second cell according to the indication information. Therefore, after the connection establishment of the UE fails in a certain cell, the cell can know the reason of the connection establishment failure in the coverage area of the cell through the indication information, and conditions are provided for the base station to which the cell belongs to control the behavior of the UE after the connection establishment failure occurs in the cell.

Fig. 4 is a flowchart of a third embodiment of a method for sending indication information according to the present invention, as shown in fig. 4, in this embodiment, the method may include:

s401, after the RRC connection establishment failure occurs to the UE, recording indication information, wherein the indication information comprises a cell identifier or a channel measurement result of a cell with the UE connection establishment failure.

Specifically, the UE initiates a connection establishment request procedure, starts a timer, considers that the connection establishment fails if the RRC connection establishment message is still not received after the timer expires, and then records 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, if the process of initiating the receiving and establishing request for the first time fails, succeeds for the second time, fails for the third time, and fails for the fourth time, the statistical total failure times is 3, and the continuous failure times is 2. Further, the indication information further includes: the total number of connection establishment failures of the UE or the number of continuous connection establishment failures of the UE.

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

first, layer 3(RRC layer) of the UE generates an RRC connection setup request message, starts a T300 timer, and sends the message to a buffer of layer 2, where layer 2 refers to a Medium Access Control (MAC) layer or a Radio Link Control (RLC) layer. Secondly, layer 2 receives the RRC connection establishment request message, triggers the random access process, and sends a leader sequence to the base station to request access. If the confirmation of the preamble sequence is received, the RRC connection establishment request message in the buffer is sent to a base station (eNB), then the RRC connection establishment confirmation message is waited, if the RRC connection establishment confirmation message is not received after T300 is overtime, the sending process of the RRC connection establishment request fails. If the confirmation of the preamble sequence is not received, the preamble sequence is reselected and transmitted, and if the confirmation of the preamble sequence is still not received after T300 times out, the transmission process of the RRC connection establishment request fails.

The failure of the transmission process of the RRC connection establishment request after the timeout of one T300 is an RRC connection establishment failure of an access stratum. After the failure, the access layer does not initiate the RRC connection establishment request any more, and further waits for the indication of the non-access layer. If the non-access stratum indicates that the UE access stratum is to send the RRC connection establishment request again, the UE starts T300 again to send. In the LTE system, each time the RRC connection setup triggered by the non-access stratum, the access stratum also triggers the RRC connection setup failure at most once. However, there are also other radio access systems, such as Universal Mobile Telecommunications System (UMTS), which is a non-access stratum triggered RRC connection establishment procedure, and the UE may trigger multiple RRC connection establishment request procedures in the access stratum and may further trigger multiple RRC connection establishment failures. It should be noted that the RRC connection establishment failures counted by the present invention are all for the requests of the non-access stratum layer. Whether the access layer generates several RRC connection establishment failures in one non-access stratum triggered RRC connection establishment request process, one RRC connection failure is counted. The statistical RRC connection establishment failure is actually the connection establishment failure times received by the non-access layer.

Further, the indication information may further include: specific reasons for the connection establishment failure, such as not receiving the preamble acknowledgement or not receiving the RRC connection establishment acknowledgement message.

S402, after the UE establishes RRC connection with the first base station, the UE sends indication information to the first base station, the indication information is used for the first base station 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, and the indication information is used for the second base station to acquire the connection establishment failure condition occurring 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 the clearing, the UE resumes counting 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: the first base station learns 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.

In the method for sending indication information provided in this embodiment, after the RRC connection establishment failure occurs in the UE, the indication information is recorded, and after the RRC connection is established between the UE and the 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 the second base station to which the second cell corresponding to the cell identifier belongs according to the cell identifier, and the second base station learns the connection establishment failure occurring in the second cell according to the indication information. Therefore, after the connection establishment of the UE fails in a certain cell, the cell can know the reason of the connection establishment failure in the coverage area of the cell through the indication information, and conditions are provided for the base station to which the cell belongs to control the behavior of the UE after the connection establishment failure occurs in the cell.

Fig. 5 is a flowchart of a second embodiment of an indication information receiving method according to the present invention, as shown in fig. 5, in this embodiment, the method of this embodiment may include:

s501, 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 UE, the indication information comprises a cell identifier of a cell in which UE connection establishment fails, the first base station is a cell in which RRC connection is successfully established with the UE after the UE connection establishment fails, and the second base station is a base station to which the cell corresponding to the cell identifier belongs.

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

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

and S503, 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.

In the indication information receiving method provided in this embodiment, after receiving the indication information forwarded by the first base station through the second base station, the indication information is used to obtain, according to the indication information, a connection establishment failure condition occurring in a cell corresponding to a cell identifier included in the indication information. Therefore, after the connection establishment of the UE fails in a certain cell, the cell can know the reason of the connection establishment failure in the coverage area of the cell through the indication information, and conditions are provided for the base station to which the cell belongs to control the behavior of the UE after the connection establishment failure occurs in the cell.

Fig. 6 is a schematic structural diagram of a base station according to a first embodiment of the present invention, and as shown in fig. 6, the base station according to this embodiment may include: the receiving module 11, the processing module 12, and the sending module 13, where the receiving module 11 is configured to receive an RLF report, where 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 UE fails to handover. The processing module 12 is configured to compare the RLF report received by the receiving module 11 with a preset feature. The sending module 13 is configured to send, when the processing module 12 determines that the RLF report matches the preset feature, indication information to the second base station, so that the second base station learns an access failure condition occurring in the cell of the second base station according to the indication information. The base station is a source cell base station of the UE which fails to switch, and the second base station is a target cell base station of the UE which fails to switch.

Wherein, optional:

In the above embodiment, the indication information includes: the RLF reports and/or indicates the cell of the second base station as an uplink and downlink unbalanced cell.

The sending module 12 is configured to:

and sending 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, wherein the RLF report and/or the information indicating that the cell of the second base station is the uplink/downlink unbalanced cell is used for the second base station to acquire the access failure condition occurring in the cell of the second base station according to the RLF report and/or the information indicating that the cell of the second base station is the uplink/downlink unbalanced cell.

The apparatus of this embodiment may be used to implement the technical solution of the method embodiment shown in fig. 1, and the implementation principle thereof is similar, which is not described herein again.

In the base station provided in this embodiment, the receiving module receives the RLF report, where 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 feature, and when it is determined that the RLF report matches the preset feature, sends the indication information to the second base station, and the second base station can learn, according to the indication information, an access failure condition occurring in the cell of the second base station. Therefore, after the access or switching failure of the UE occurs in a certain cell, the cell can acquire the reason of the access or switching failure in the coverage area of the cell through the indication information, and conditions are provided for the base station to which the cell belongs to control the behavior of the UE after the access or switching failure of the cell.

Fig. 7 is a schematic structural diagram of a second embodiment of the base station of the present invention, and as shown in fig. 7, the base station of this embodiment may include: a receiving module 21 and a processing module 22, where the receiving module 21 is configured to receive indication information sent by a first base station, the indication information is sent by the first base station after receiving an RLF report, 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 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 a handover failure of the UE. The processing module 22 is configured to learn, according to the indication information received by the receiving module 21, an access failure condition occurring in the cell of the second base station. The first base station is a source cell base station of the UE which fails to switch, and the base station is a target cell base station of the UE which fails to switch.

Wherein, optional:

In the above embodiment, the indication information includes: the RLF reports and/or indicates the cell of the base station as an uplink and downlink unbalanced cell.

The processing module 22 is configured to:

and acquiring the access failure condition occurring in the cell of the second base station according to the RLF report and/or the information indicating that the cell of the base station is an uplink and downlink unbalanced cell.

Fig. 8 is a schematic structural diagram of a third embodiment of a base station of the present invention, and as shown in fig. 8, the base station of this embodiment may further include, on the basis of the base station shown in fig. 7: a sending module 23.

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 the UE is prohibited to access the first cell again after the access fails.

The apparatuses in the embodiments shown in fig. 7 and fig. 8 may be used to implement the technical solution in the embodiment of the method shown in fig. 2, and the implementation principle and the technical effect are similar, which are not described herein again.

In the base station provided in the embodiments shown in fig. 7 and fig. 8, the receiving module receives the indication information sent by the source cell base station where the handover fails, and then the processing module learns the access failure condition occurring in the cell of the second base station according to the indication information received by the receiving module. Therefore, after the access or switching failure of the UE occurs in a certain cell, the cell can acquire the reason of the access or switching failure in the coverage area of the cell through the indication information, and conditions are provided for the base station to which the cell belongs to control the behavior of the UE after the access or switching failure of the cell.

Fig. 9 is a schematic structural diagram of a fourth base station according to the present invention, and as shown in fig. 9, the apparatus of this embodiment may include: a receiving module 31 and a sending module 32, where the receiving module 31 is configured to receive indication information sent by the UE, the indication information includes a cell identifier of a cell in which the connection establishment of the UE fails, and the base station is a cell in which the RRC connection is successfully established with the UE after the connection establishment of the UE 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 identifier belongs according to the cell identifier included in the indication information received by the receiving module 31, and the second base station learns a connection establishment failure condition occurring in the second cell according to the indication information.

Wherein, the indication information further includes: the total number of connection establishment failures of the UE, or the number of continuous connection establishment failures of the UE, or a specific reason of the connection establishment failures of the UE.

The apparatus of this embodiment may be used to implement the technical solution of the method embodiment shown in fig. 3, and the implementation principle and the technical effect are similar, which are not described herein again.

In the base station provided in this embodiment, after the receiving module receives the indication information sent by the UE, the sending module forwards the indication information to the base station to which the second cell corresponding to the cell identifier belongs according to the cell identifier in the indication information, so that the second base station learns the connection establishment failure condition occurring in the second cell according to the indication information. Therefore, after the connection establishment of the UE fails in a certain cell, the cell can know the reason of the connection establishment failure in the coverage area of the cell through the indication information, and conditions are provided for the base station to which the cell belongs to control the behavior of the UE after the connection establishment failure occurs in the cell.

Fig. 10 is a schematic structural diagram of a fifth embodiment of the base station of the present invention, and as shown in fig. 10, the base station of this embodiment may further include, on the basis of the base station shown in fig. 9: a processing module 33.

Wherein, further, the receiving module 31 is further configured to: before receiving the indication information sent by the UE, receiving a first indication message sent by the UE, wherein the first indication message is used for indicating: the UE stores indication information.

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

Fig. 11 is a schematic structural diagram of a first user equipment embodiment of the present invention, and as shown in fig. 11, the user equipment of this embodiment may include: a recording module 41 and a sending module 42, wherein the recording module 41 is configured to record indication information after an RRC connection establishment failure occurs, where the indication information includes a cell identifier of a cell in which the UE connection establishment fails. The sending module 42 is configured to send, to the first base station, the indication information recorded by the recording module 41 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, and is configured to obtain, by the second base station, a connection establishment failure condition occurring in the second cell according to the indication information.

The apparatus of this embodiment may be used to implement the technical solution of the method embodiment shown in fig. 4, and the implementation principle and the technical effect are similar, which are not described herein again.

The UE provided in this embodiment records the indication information through the recording module after the RRC connection establishment failure occurs in the UE, and the sending module sends the indication information to the first base station after the RRC connection is established between the UE and 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 identifier belongs according to the cell identifier, and the second base station learns the connection establishment failure occurring in the second cell according to the indication information. Therefore, after the connection establishment of the UE fails in a certain cell, the cell can know the reason of the connection establishment failure in the coverage area of the cell through the indication information, and conditions are provided for the base station to which the cell belongs to control the behavior of the UE after the connection establishment failure occurs in the cell.

Fig. 12 is a schematic structural diagram of a second user equipment embodiment of the present invention, and as shown in fig. 12, the user equipment of this embodiment may further include, on the basis of the user equipment shown in fig. 11: a clearing module 43, where the clearing 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 embodiment, the sending module 42 is further configured to:

before sending the indication information to the first base station, sending 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 requesting the UE to send the indication information to the first base station according to the first indication message.

Fig. 13 is a schematic structural diagram of a sixth embodiment of a base station of the present invention, and as shown in fig. 13, the base station of this embodiment may include: the receiving module 51 and the learning module 52 are configured to receive indication information forwarded by a first base station, where the indication information is sent to the first base station by a 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 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 learning module 52 is configured to learn, according to the indication information received by the receiving module 51, a connection establishment failure condition occurring in the cell corresponding to the cell identifier.

The apparatus of this embodiment may be used to implement the technical solution of the method embodiment shown in fig. 5, and the implementation principle and the technical effect are similar, which are not described herein again.

In the base station provided in this embodiment, after the receiving module receives the indication information forwarded by the first base station, the obtaining module obtains, according to the indication information received by the receiving module, a connection establishment failure condition occurring in the cell corresponding to the cell identifier. Therefore, after the connection establishment of the UE fails in a certain cell, the cell can know the reason of the connection establishment failure in the coverage area of the cell through the indication information, and conditions are provided for the base station to which the cell belongs to control the behavior of the UE after the connection establishment failure occurs in the cell.

Fig. 14 is a schematic structural diagram of a seventh embodiment of the base station of the present invention, and as shown in fig. 14, the base station of this embodiment may further include, on the basis of the base station shown in fig. 13: a processing module 53 and a sending module 54. The processing module 53 is configured to, after the obtaining module 52 obtains, according to the indication information received by the receiving module 51, a connection establishment failure condition occurring in the cell corresponding to the cell identifier, determine, according to the indication information, that the cell corresponding to the cell identifier is an uplink/downlink unbalanced cell. The sending module 54 is configured to broadcast a notification message after the processing module 53 determines, according to the indication information, that the cell corresponding to the cell identifier is an uplink/downlink unbalanced cell, and is configured 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.

Fig. 15 is a schematic structural diagram of an eighth embodiment of the base station of the present invention, and as shown in fig. 15, the base station of this embodiment may include: a receiver 61, a processor 62 and a transmitter 63, wherein the receiver 61 is configured to receive an RLF report, the RLF report being 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 a handover failure of the UE. The processor 62 is configured to compare the RLF report received by the receiver 61 with a predetermined characteristic. The transmitter 63 is configured to send, when the processor 62 determines that the RLF report matches the preset feature, indication information to the second base station, so that the second base station learns, according to the indication information, an access failure condition occurring in a cell of the second base station. The base station is a source cell base station of the UE which fails to switch, and the second base station is a target cell base station of the UE which fails to switch.

Wherein, optional:

The transmitter 62 is configured to:

In the base station provided in this embodiment, the receiver receives the RLF report, where 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 feature, and when it is determined that the RLF report matches the preset feature, the transmitter sends the indication information to the second base station, and the second base station can know, according to the indication information, an access failure condition occurring in the cell of the second base station. Therefore, after the access or switching failure of the UE occurs in a certain cell, the cell can acquire the reason of the access or switching failure in the coverage area of the cell through the indication information, and conditions are provided for the base station to which the cell belongs to control the behavior of the UE after the access or switching failure of the cell.

Fig. 16 is a schematic structural diagram of a ninth embodiment of a base station of the present invention, and as shown in fig. 16, the base station of this embodiment may include: the receiver 71 and the processor 72, wherein the receiver 71 is configured to receive indication information sent by the first base station, the indication information is sent by the first base station by comparing the RLF report with a preset feature after receiving the RLF report, 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 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 UE fails to perform handover. The processor 72 is configured to learn about an access failure condition occurring in the cell of the second base station according to the indication information received by the receiver 71. The first base station is a source cell base station of the UE which fails to switch, and the base station is a target cell base station of the UE which fails to switch.

Wherein, optional:

The processor 72 is configured to:

Fig. 17 is a schematic structural diagram of a tenth embodiment of the base station of the present invention, and as shown in fig. 17, the base station of this embodiment may further include, on the basis of the base station shown in fig. 16: a transmitter 73.

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 uplink/downlink unbalanced cell, so as to notify the UE in the first cell to prohibit the UE from accessing the first cell again after the access fails.

The apparatuses in the embodiments shown in fig. 16 and fig. 17 may be used to implement the technical solution in the embodiment of the method shown in fig. 2, and the implementation principle and the technical effect are similar, which are not described herein again.

In the base station provided in the embodiments shown in fig. 16 and fig. 17, the receiver receives the indication information sent by the source cell base station where the handover failure occurs, and then the processor learns the access failure condition occurring in the cell of the second base station according to the indication information received by the receiver. Therefore, after the access or switching failure of the UE occurs in a certain cell, the cell can acquire the reason of the access or switching failure in the coverage area of the cell through the indication information, and conditions are provided for the base station to which the cell belongs to control the behavior of the UE after the access or switching failure of the cell.

Fig. 18 is a schematic structural diagram of an eleventh embodiment of a base station of the present invention, and as shown in fig. 18, an apparatus of this embodiment may include: the receiver 81 is configured to receive indication information sent by the UE, where the indication information includes a cell identifier of a cell in which the connection establishment of the UE fails, and the base station is a cell in which the RRC connection is successfully established with the UE after the connection establishment of the UE fails. The transmitter 82 is configured to forward the indication information to a base station to which the second cell corresponding to the cell identifier belongs according to the cell identifier included in the indication information received by the receiver 81, so that the second base station learns a connection establishment failure condition occurring in the second cell according to the indication information.

In the base station provided in this embodiment, after receiving the indication information sent by the UE through the receiver, the sender forwards the indication information to the base station to which the second cell corresponding to the cell identifier belongs according to the cell identifier in the indication information, so that the second base station learns the connection establishment failure condition occurring in the second cell according to the indication information. Therefore, after the UE fails to establish the connection in a certain cell, the cell can know the reason of the failure of the connection establishment in the coverage area of the cell through the indication information, and conditions are provided for the base station to which the cell belongs to control the behavior of the UE after the failure of the connection establishment in the cell

Fig. 19 is a schematic structural diagram of a twelfth embodiment of a base station of the present invention, and as shown in fig. 19, the base station of this embodiment may further include, on the basis of the base station shown in fig. 18: and a processor 83.

Wherein, further, the receiver 81 is further configured to: before receiving the indication information sent by the UE, receiving a first indication message sent by the UE, wherein the first indication message is used for indicating: the UE stores indication information.

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

Fig. 20 is a schematic structural diagram of a third embodiment of the user equipment in the present invention, and as shown in fig. 20, the user equipment in this embodiment may include: a processor 91 and a transmitter 92, wherein the processor 91 is configured to record indication information after an RRC connection establishment failure occurs, and the indication information includes a cell identifier of a cell in which the UE connection establishment fails. The transmitter 92 is configured to send, to the first base station, the indication information recorded by the processor 91 after the UE establishes the RRC connection with the first base station, to forward, by the first base station, the indication information to the second base station to which the second cell corresponding to the cell identifier belongs according to the cell identifier, and to learn, by the second base station, a connection establishment failure condition occurring in the second cell according to the indication information.

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

In the above embodiment, the transmitter 92 is further configured to:

In the UE provided in this embodiment, the processor records the indication information after the RRC connection setup failure occurs in the UE, and the transmitter sends the indication information to the first base station after the RRC connection is established between the UE and 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 identifier belongs according to the cell identifier, and the second base station learns the connection setup failure occurring in the second cell according to the indication information. Therefore, after the connection establishment of the UE fails in a certain cell, the cell can know the reason of the connection establishment failure in the coverage area of the cell through the indication information, and conditions are provided for the base station to which the cell belongs to control the behavior of the UE after the connection establishment failure occurs in the cell.

Fig. 21 is a schematic structural diagram of a thirteenth embodiment of a base station of the present invention, and as shown in fig. 21, the base station of this embodiment may include: the receiver 101 and the processor 102, where the receiver 101 is configured to receive indication information forwarded by a first base station, the indication information is sent to the first base station by the 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 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 processor 102 is configured to learn, according to the indication information received by the receiver 101, a connection establishment failure occurring in the cell corresponding to the cell identifier.

In the base station provided in this embodiment, after the receiver receives the indication information forwarded by the first base station, the processor obtains, according to the indication information received by the receiver, a connection establishment failure condition occurring in the cell corresponding to the cell identifier. Therefore, after the connection establishment of the UE fails in a certain cell, the cell can know the reason of the connection establishment failure in the coverage area of the cell through the indication information, and conditions are provided for the base station to which the cell belongs to control the behavior of the UE after the connection establishment failure occurs in the cell.

Fig. 22 is a schematic structural diagram of a fourteenth base station embodiment of the present invention, and as shown in fig. 22, the base station of this embodiment may further include, on the basis of the base station shown in fig. 21: a processor 103 and a transmitter 104. The processor 103 is configured to determine, according to the indication information received by the receiver 101, that the cell corresponding to the cell identifier is an uplink/downlink unbalanced cell after knowing that the connection establishment failure condition occurs in the cell corresponding to the cell identifier. 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 uplink/downlink unbalanced cell, and is configured 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.

In the embodiments provided in the present invention, it should be understood that the disclosed apparatus and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.

The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.

In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, or in a form of hardware plus a software functional unit.

The integrated unit implemented in the form of a software functional unit may be stored in a computer readable storage medium. The software functional unit is stored in a storage medium and includes several instructions to enable a computer device (which may be a personal computer, a server, or a network device) or a processor (processor) to execute some steps of the methods according to the embodiments of the present invention. And the aforementioned storage medium includes: various media capable of storing program codes, such as a usb disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.

It is obvious to those skilled in the art that, for convenience and simplicity of description, the foregoing division of the functional modules is merely used as an example, and in practical applications, the above function distribution may be performed by different functional modules according to needs, that is, the internal structure of the device is divided into different functional modules to perform all or part of the above described functions. For the specific working process of the device described above, reference may be made to the corresponding process in the foregoing method embodiment, which is not described herein again.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. An indication information sending method, comprising:

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

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, wherein the indication information comprises: the RLF reports or indicates that the cell of the second base station is an uplink and downlink unbalanced cell;

and the first base station sends the RLF report or 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 learns the access failure condition occurring in the cell of the second base station according to the RLF report or the information indicating that the cell of the second base station is the uplink and downlink unbalanced cell.

3. An indication information receiving method, comprising:

4. The method of claim 3, wherein the indication information comprises:

the RLF reports or indicates that the cell of the second base station is an uplink and downlink unbalanced cell;

and the second base station acquires the access failure condition occurring in the cell of the second base station according to the RLF report or the information indicating that the cell of the second base station is an uplink and downlink unbalanced cell.

5. The method of claim 4, wherein after the second base station learns the access failure condition occurring in the cell of the second base station according to the RLF report or the information indicating that the cell of the second base station is an uplink/downlink unbalanced cell, the method further comprises:

and the second base station judges that the first cell of the second base station is an uplink and downlink unbalanced cell and broadcasts a notification message according to the RLF report or the information indicating that the cell of the second base station is the uplink and downlink unbalanced cell, so as to notify the UE in the first cell that the UE is forbidden to access the first cell again after the access fails.

6. An indication information sending method, comprising:

after the UE establishes RRC connection with a first base station, the UE sends the indication information to the first base station;

the indication information further includes: the total number of connection establishment failures of the UE, or the number of continuous connection establishment failures of the UE, or no preamble acknowledgement or no RRC connection establishment acknowledgement message is received.

7. The method of claim 6, wherein after the UE sends the indication information to the first base station, the method further comprises:

the UE clears the recorded indication information.

8. The method according to any of claims 6-7, wherein before the UE sends the indication information to the first base station, the method further comprises:

9. An indication information receiving method, comprising:

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

10. A base station, comprising:

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;

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

11. The base station of claim 10, wherein the indication information comprises:

the sending module is used for:

and sending the RLF report or information indicating that the cell of the second base station is an uplink/downlink unbalanced cell to the second base station, so that the second base station can acquire the access failure condition occurring in the cell of the second base station according to the RLF report or the information indicating that the cell of the second base station is the uplink/downlink unbalanced cell.

12. A second base station, comprising:

13. The second base station of claim 12, wherein the indication information comprises:

the processing module is used for:

and acquiring the access failure condition occurring in the cell of the second base station according to the RLF report or the information indicating that the cell of the second base station is an uplink and downlink unbalanced cell.

14. The second base station according to claim 13, wherein the processing module 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 or information indicating that the cell of the second base station is an uplink/downlink unbalanced cell;

the second base station further comprises:

15. A user device, comprising:

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, where the indication information further includes: the total number of connection establishment failures of the UE, or the number of continuous connection establishment failures of the UE, or no preamble acknowledgement or no RRC connection establishment acknowledgement message is received.

16. The user equipment of claim 15, further comprising:

17. The user equipment according to any of claims 15-16, wherein the sending module is further configured to:

18. 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 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, and the indication information further includes: the total number of connection establishment failures of the UE, or the number of continuous connection establishment failures of the UE, or no preamble confirmation or no RRC connection establishment confirmation message is received;

19. A base station, comprising:

20. The base station of claim 19, wherein the indication information comprises:

the transmitter is configured to:

21. A second base station, comprising:

22. The second base station of claim 21, wherein the indication information comprises:

the processor is configured to:

23. The second base station according to claim 22, wherein the processor 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 or information indicating that the cell of the second base station is an uplink/downlink unbalanced cell;

the second base station further comprises:

24. A user device, comprising:

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 in which a connection establishment of a user equipment UE fails, and the indication information further includes: the total number of connection establishment failures of the UE, or the number of continuous connection establishment failures of the UE, or no preamble confirmation or no RRC connection establishment confirmation message is received;

a transmitter, configured to send the recorded indication information to a first base station after the UE establishes an RRC connection with the first base station.

25. The user equipment of claim 24, wherein the processor is further configured to:

26. The user equipment of any of claims 24-25, wherein the transmitter is further configured to:

27. 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 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, and the indication information further includes: the total number of connection establishment failures of the UE, or the number of continuous connection establishment failures of the UE, or no preamble confirmation or no RRC connection establishment confirmation message is received;

28. A computer-readable storage medium having computer-executable instructions stored therein, which when executed by a processor, are configured to implement the method of any one of claims 1-9.