WO2015113253A1

WO2015113253A1 - Method and device for reporting and obtaining redirection information

Info

Publication number: WO2015113253A1
Application number: PCT/CN2014/071765
Authority: WO
Inventors: 支玉亮; 李秉肇; 奥鲁佛松•亨里克
Original assignee: 华为技术有限公司
Priority date: 2014-01-29
Filing date: 2014-01-29
Publication date: 2015-08-06
Also published as: CN105264951A; CN105264951B

Abstract

The present invention relates to communications technologies. Disclosed are a method and device for reporting and obtaining redirection information. After receiving a Redirect command, a UE records related information of a Redirect event and reports the recorded related information of the Redirect event to a network side, so that a network side device can obtain redirection information of the UE and a base station initiating handover or redirection can perform subsequent optimization operations according to the redirection information.

Description

Redirection information reporting and obtaining method and device

Technical field

The present invention relates to communication technologies, and in particular, to a method and an apparatus for reporting and acquiring redirection information. Background technique

SON (Synchronous Optical Net) technology is a network self-optimization technology. The network collects user information to determine the optimal adjustment of network parameters. A typical application is mobile robustness self-optimization. That is, the UE records related information that the radio link fails or the handover fails in the network. When the UE establishes a connection with the network again, the UE reports the recorded failure information to the network. After the network analyzes the failure information of a large number of UEs, it can infer the cause of the failure problem and further adjust the mobility related parameters. By automatically optimizing the mobility parameters, you can avoid the same failure events in the network.

Currently, through the mobile robustness self-optimization technology, the network can identify and optimize problem scenarios such as premature handover, late handover, handover to the wrong cell, and ping-pong handover.

But there is another important mobility scenario in the network that is a redirect scenario. Redirection method Due to its simple operation, it is widely used in existing networks. Redirection is also caused by unreasonable parameter settings. It can also cause problems such as switching UEs to inappropriate frequency points or causing premature redirect switching.

However, at present, the network side cannot obtain the redirect information of the UE, and the subsequent optimization operation cannot be performed. Summary of the invention

The embodiment of the present invention provides a method and a device for reporting and retrieving redirection information, so as to obtain redirection information of a UE by a base station that initiates handover or redirection, and then perform subsequent optimization operations.

The first aspect, a method for reporting redirection information, includes:

After receiving the redirect command message sent by the base station of the first cell, the UE records the related information of the redirection event;

The UE reports information about the redirect event to the network side. With reference to the first aspect, in a first possible implementation, the information related to the record redirection event includes:

After determining that the radio link control RRC connection establishment with the second cell fails, the first information is recorded, where the first information includes: a first cell identifier and a second cell identifier;

The UE reports the related information of the redirection event to the network side, and specifically includes:

When the UE initiates an RRC connection setup to the third cell or after the UE enters the connected state, the UE sends the first redirection indication information including the first information to the third cell, and the base station of the third cell sends the base station to the base station of the first cell. Sending a second redirection indication information, where the second redirection indication information includes: first redirection indication information;

The third cell and the second cell are the same cell or different cells.

In conjunction with the first possible implementation of the first aspect, in the second possible implementation, the first information further includes one or a combination of the following:

The tracking area or the routing area identifier, the target frequency point information, the identifier of the UE in the first 'area, the time when the UE receives the redirection command to the time when the RRC connection establishment fails, and the measurement result of the relevant measurement by the UE;

The second redirection indication information further includes one or a combination of the following:

The interval between the current distance RRC connection establishment failure and the third cell identifier and the first cell identifier.

In conjunction with the first possible implementation of the first aspect, in a third possible implementation, the second redirection indication information further includes: the UE redirects to the wrong frequency point and/or the UE redirection failure.

In conjunction with the first possible implementation of the first aspect, in a fourth possible implementation, the method further includes:

The UE adds the first information to a connection establishment failure variable.

With reference to the first aspect, in a fifth possible implementation, the information related to the record redirection event includes:

After determining that the RRC connection with the second cell is successfully established, recording second information, the second information The information includes: a first cell identifier;

The UE sends the third redirection indication information including the second information to the second cell, and the base station of the second cell sends the fourth redirection indication information to the base station of the first cell, where the fourth redirection indication information includes: The third redirect indication information.

In conjunction with the fifth possible implementation of the first aspect, in the sixth possible implementation, the second information further includes one or a combination of the following:

Tracking area/routing area identifier, identity of the UE in the first 'area, target frequency point information, identity of the UE in the first cell, time when the UE receives the redirect command to initiate the establishment of the RRC connection, whether the UE has successfully redirected, Whether the UE is directed to the wrong frequency

The fourth redirection indication information further includes one or a combination of the following:

The second cell identity and whether the UE has successfully redirected, whether the UE is directed to the wrong frequency point. With reference to the first aspect, in a seventh possible implementation, the information about the redirection event is recorded by the UE, including:

After the redirection command message is redirected to the second cell and the radio link fails, the third information is recorded, where the third information includes: a first cell identifier and a second cell identifier;

After the third cell enters the connected state, the UE sends, to the third cell, fifth redirection indication information including the third information and the interval of the current RRC connection setup failure, and the base station of the third cell sends the base station to the base station of the second cell. And the sixth redirection indication information including the fifth redirection indication information and the third cell identifier, where the base station of the second cell determines that the UE redirects to the wrong frequency point, and sends the sixth redirection indication to the base station of the first cell. The information and/or the seventh redirection indication information that the UE redirects to the wrong frequency point.

In conjunction with the seventh possible implementation of the first aspect, in the eighth possible implementation, the third information further includes one or a combination of the following:

The tracking area/routing area identifier, the target frequency point information, the identifier of the UE in the first 'area, and the time when the UE receives the redirect command until the radio link fails. In conjunction with the seventh possible implementation of the first aspect, in a ninth possible implementation, the method further includes:

The UE adds the third information to a radio link failure reporting variable.

With reference to the first aspect, in a tenth possible implementation, the receiving, by the UE, the redirection command message sent by the base station of the first cell, specifically includes:

After switching from the third cell to the first cell, the UE receives the redirection command message sent by the base station of the first cell.

With reference to the tenth possible implementation manner of the foregoing aspect, in the eleventh possible implementation manner,

After the UE is redirected to the second cell according to the redirection command message, the fourth information is recorded, where the fourth information includes: a first cell identifier;

The UE sends the eighth redirection indication information including the fourth information to the second cell, where the base station of the second cell sends the ninth redirection indication information to the base station of the first cell, where the ninth redirection indication information includes: Redirection indication information, the second cell identifier, and whether the UE has successfully redirected, whether the UE is redirected to the wrong frequency point; and the base station of the first cell determines that the UE performs the ping-pong handover, and sends the packet to the base station of the third cell. Paging switching indication information, where the ping-pong switching indication information includes: ninth redirection indication information.

With reference to the eleventh possible implementation manner of the first aspect, in the twelfth possible implementation, the fourth information further includes one or a combination of the following:

Tracking area/routing area identifier, identity of the UE in the first 'area, target frequency point information, identity of the UE in the first cell, time when the UE receives the redirect command to initiate the establishment of the RRC connection, whether the UE has successfully redirected, Whether the UE is directed to the wrong frequency point;

The ping-pong switching indication information further includes one or a combination of the following:

The third cell identifier, the handover reason, and the first cell identity.

With reference to the tenth possible implementation manner of the foregoing aspect, in the thirteenth possible implementation manner, the redirection command message includes history information that the UE performs handover; The information about the redirection event is recorded by the UE, and specifically includes:

After the UE is redirected to the second cell according to the redirection command message, the fifth information is recorded, where the fifth information includes: a first cell identifier and historical information that the UE performs handover;

The UE sends the tenth redirection indication information including the fifth information to the second cell, and the base station of the second cell determines, according to the historical information of the handover performed by the UE, that the UE sends the ping-pong handover indication to the base station of the third cell after performing the ping-pong handover. The information, the ping-pong switching indication information includes: a tenth redirection indication information.

With reference to the thirteenth possible implementation manner of the first aspect, in the fourteenth possible implementation manner, the fifth information further includes one or a combination of the following:

The redirect command message, the second cell identifier, the third cell identifier, the target frequency point, the handover reason, and the first 'zone identifier.

With reference to the thirteenth possible implementation manner of the foregoing aspect, in the fifteenth possible implementation manner, the historical information that the UE performs the handover includes:

The third cell identifier and the identifier of the first cell.

With reference to the fifteenth possible implementation manner of the first aspect, in the sixteenth possible implementation manner, the historical information of the handover performed by the UE further includes one or a combination of the following:

The dwell time of the UE in the third cell, the reason why the UE is handed over in the third cell, the identity of the UE in the third cell, the dwell time of the UE in the first cell, the identity of the UE in the first cell, and the UE in the first The reason why the cell is redirected.

With reference to the first aspect, in the seventeenth possible implementation, the information about the redirection event is recorded by the UE, specifically:

The UE records the sixth information including the first 'zone identifier; The information about the redirection event reported by the UE to the network side includes:

When transmitting the RRC connection setup request or the RRC setup complete message to the base station of the second cell, the UE carries the eleventh redirect indication information including the sixth information, and the base station of the second cell The directional indication information is sent to the core network, and the core network determines, according to the handover history information of the UE, that the UE performs ping-pong handover, and then sends a ping-pong handover indication to the base station of the third cell.

With reference to any one of the first to the nineteenth possible implementation manners of the first aspect, in the eighteenth possible implementation manner, the second cell is:

After receiving the redirect command message, the UE performs the cell selected after the cell selection; or

After receiving the redirect command message, the UE initiates a cell in which the RRC connection is established.

With reference to the first aspect, in a nineteenth possible implementation, the redirecting command message includes:

Redirect event reporting information indicating that the UE needs to record and report the information related to the redirection.

The second aspect, a method for obtaining redirection information, includes:

The base station of the first cell sends a redirect command message to the UE;

The base station of the first cell receives the redirection indication information sent by the base station that is relocated after the UE is redirected, and the redirection indication information includes information about the redirection event of the base station that the UE records and reports to the UE after redirection.

With reference to the second aspect, in a first possible implementation manner, before the base station of the first cell sends a redirect command message to the UE, the method further includes:

The base station of the first cell determines that the UE switches from the third cell to the first cell;

After receiving, by the base station of the first cell, the redirection indication information sent by the base station that is relocated by the UE after redirection, the method further includes:

The base station of the first cell determines that the UE performs redirection within a set time of handover to the first cell, and sends ping-pong handover indication information including the redirection indication information to the base station of the third cell.

The third aspect, a method for reporting redirection information, includes:

The base station of the second cell receives the redirect command sent by the base station that the UE receives the first cell. After the information is recorded, the redirection indication information sent after the information about the redirection event is recorded;

The base station of the second cell forms new redirection indication information including the redirection indication information according to the redirection indication information;

The base station of the second cell transmits the new redirection indication information to the base station of the first cell. The fourth aspect, a method for reporting redirection information, includes:

The base station of the second cell receives the redirection indication information sent by the UE after receiving the redirection command message sent by the base station of the first cell, and records the related information of the redirection event;

The base station of the second cell determines, according to the historical information of the UE handover included in the redirection indication information, that the ping-pong handover indication information is sent to the third cell that is camped on before the handover of the UE.

In a fifth aspect, a method for reporting redirection information includes:

After receiving the redirect command message sent by the base station of the first cell, the base station of the second cell receives the radio link control RRC connection setup request or the RRC setup complete message;

The base station of the second cell sends a service request message to the core network, and receives the history information of the UE that is sent by the core network to perform handover;

The base station of the second cell determines, according to the historical information of the handover performed by the UE, that the UE sends the ping-pong handover indication information to the third cell that is camped on before the UE performs the ping-pong handover.

In a sixth aspect, a method for reporting redirection information includes:

After receiving the redirection command message sent by the base station of the first cell, the base station of the second cell sends a radio link control RRC connection setup request or an RRC setup complete message, in the RRC connection setup request or the RRC setup complete message. Carrying an eleventh redirection indication information including a first cell identifier;

The base station of the second cell sends a service request message to the core network, where the service request message carries the eleventh redirection indication information, and the core network determines that the UE performs the ping-pong handover, and sends the third cell to the UE before the handover. Ping Pong switching indication information.

In a seventh aspect, a user equipment includes:

a recording unit, configured to receive a redirection command message sent by a base station of the first cell, and record Information about the redirect event;

The reporting unit is configured to report information about the redirect event to the network side.

With reference to the seventh aspect, in a first possible implementation manner, the recording unit records information about a redirection event, which specifically includes:

The reporting unit is specifically configured to:

When the RRC connection establishment is initiated to the third cell, or after the UE enters the connected state, the third redirection indication information including the first information is sent to the third cell, and the base station of the third cell sends the information to the base station of the first cell. a second redirection indication information, where the second redirection indication information includes: first redirection indication information;

The third cell and the second cell are the same cell or different cells.

With reference to the first possible implementation manner of the seventh aspect, in the second possible implementation manner, the first information further includes one or a combination of the following:

With reference to the first possible implementation manner of the seventh aspect, in a third possible implementation manner, when the third cell is not the second cell, the second redirection indication information further includes: the UE redirects to Incorrect frequency and/or UE redirection failed.

In conjunction with the first possible implementation of the seventh aspect, in a fourth possible implementation, the recording unit is further configured to:

The first information is added to the connection establishment failure variable.

With reference to the seventh aspect, in a fifth possible implementation, the recording unit records redirection Information about the event, including:

After determining that the RRC connection with the second cell is successfully established, the second information is recorded, where the second information includes: a first cell identifier;

The reporting unit is specifically configured to:

Sending, by the base station of the second cell, the fourth redirection indication information to the base station of the first cell, where the fourth redirection indication information includes: Three redirect instructions.

With reference to the fifth possible implementation manner of the seventh aspect, in the sixth possible implementation, the second information further includes one or a combination of the following:

The second cell identity and whether the UE has successfully redirected, whether the UE is directed to the wrong frequency point. With reference to the seventh aspect, in a seventh possible implementation manner, the recording unit records information about a redirection event, which specifically includes:

The reporting unit is specifically configured to:

After the third cell enters the connected state, the fifth redirection indication information including the third information and the interval of the current RRC connection establishment failure is sent to the third cell, where the base station of the third cell sends the information to the base station of the second cell, including The fifth redirection indication information and the sixth redirection indication information of the third cell identifier, after the base station of the second cell determines that the UE redirects to the wrong frequency point, sends the sixth redirection indication information to the base station of the first cell. And/or the seventh redirection indication information that the UE redirects to the wrong frequency point.

With reference to the seventh possible implementation manner of the seventh aspect, in the eighth possible implementation, the third information further includes one or a combination of the following: The tracking area/routing area identifier, the target frequency point information, the identifier of the UE in the first 'area, and the time when the UE receives the redirect command until the radio link fails.

With reference to the seventh possible implementation of the seventh aspect, in a ninth possible implementation, the recording unit is further configured to:

The third information is added to the radio link failure reporting variable.

With reference to the seventh aspect, in a tenth possible implementation, the receiving, by the recording unit, the redirection command message sent by the base station of the first cell, specifically includes:

After switching from the third cell to the first cell, receiving a redirect command message sent by the base station of the first cell.

With reference to the tenth possible implementation manner of the seventh aspect, in the eleventh possible implementation manner, the recording unit records related information of the redirection event, specifically:

After the redirection command message is redirected to the second cell, the fourth information is recorded, where the fourth information includes: a first cell identifier;

The reporting unit is specifically configured to:

Transmitting, by the base station of the second cell, the ninth redirection indication information to the base station of the first cell, where the ninth redirection indication information includes: Orientation indication information, the second cell identifier, and whether the UE has successfully redirected, whether the UE is redirected to the wrong frequency point; and the base station of the first cell determines that the UE is performing ping-pong handover, and sends the ping pong to the base station of the third cell. The switching indication information includes: ninth redirection indication information.

With reference to the eleventh possible implementation manner of the seventh aspect, in the twelfth possible implementation, the fourth information further includes one or a combination of the following:

The third cell identifier, the handover reason, and the first cell identity. With reference to the tenth possible implementation manner of the seventh aspect, in the thirteenth possible implementation manner, the redirection command message includes history information that the UE performs handover;

The recording unit records related information of the redirect event, and specifically includes:

After the redirection command message is redirected to the second cell, the fifth information is recorded, where the fifth information includes: a first cell identifier and historical information that the UE performs handover;

The reporting unit is specifically configured to:

Transmitting, by the base station of the second cell, the tenth redirection indication information including the fifth information, and determining, by the base station of the second cell, that the UE performs the ping-pong handover, and transmitting the ping-pong switch to the base station of the third cell, according to the historical information of the UE performing the handover. The indication information, the ping-pong switching indication information includes: a tenth redirection indication information.

With reference to the thirteenth possible implementation manner of the seventh aspect, in the fourteenth possible implementation manner, the fifth information further includes one or a combination of the following:

With reference to the thirteenth possible implementation manner of the seventh aspect, in the fifteenth possible implementation manner, the historical information that the UE performs the handover includes:

The third cell identifier and the identifier of the first cell.

With reference to the fifteenth possible implementation manner of the seventh aspect, in the sixteenth possible implementation manner, the historical information of the handover performed by the UE further includes one or a combination of the following:

With reference to the seventh aspect, in the seventeenth possible implementation manner, the recording unit records re-determination Information about the event, including:

Recording sixth information including the first cell identifier;

The reporting unit is specifically configured to:

When the RRC connection setup request or the RRC setup complete message is sent to the base station of the second cell, the eleventh redirection indication information including the sixth information is carried, and the eleventh redirection is performed by the base station of the second cell. The indication information is sent to the core network, and the core network determines, according to the handover history information of the UE, that the UE performs the ping-pong handover, and then sends the ping-pong handover indication to the base station of the third cell.

With reference to any one of the first to the nineteenth possible implementation manners of the seventh aspect, in the eighteenth possible implementation manner, the second cell is:

After receiving the redirect command message, the cell selected after the cell selection is performed; or

After receiving the redirect command message, the cell that initiated the RRC connection is initiated.

With reference to the seventh aspect, in the nineteenth possible implementation, the redirection command message includes:

The eighth aspect, a base station, comprising:

a sending unit, configured to send a redirect command message to the UE;

The receiving unit is configured to receive redirection indication information that is sent by the base station that is relocated after the UE is redirected, and the redirection indication information includes information about a redirection event that is recorded by the UE and reported to the base station that is relocated after the UE is redirected.

With reference to the eighth aspect, in a first possible implementation manner, the sending unit is further configured to: before sending a redirection command message to the UE, determining that the UE switches from the third cell to the first 'area; Used for:

After receiving the redirection indication information sent by the base station that is relocated after the UE is redirected, the UE determines that the UE performs redirection within a set time of the handover to the first cell, and sends the redirection indication information to the base station of the third cell. Ping Pong switching indication information.

A ninth aspect, a base station, comprising: The information receiving unit is configured to receive redirection indication information that is sent after the UE receives the redirection command message sent by the base station of the first cell, and records the related information of the redirection event;

a generating unit, configured to form, according to the redirection indication information, new redirection indication information including the redirection indication information;

And a forwarding unit, configured to send the new redirection indication information to a base station of the first cell. In a tenth aspect, a base station includes:

The indication information receiving unit is configured to receive redirection indication information that is sent after the UE receives the redirection command message sent by the base station of the first cell, and records the related information of the redirection event;

And a determining unit, configured to determine, according to the historical information of the UE handover included in the redirection indication information, that the ping-pong handover indication information is sent to the third cell camped before the handover of the UE after the ping-pong handover is performed by the UE.

In an eleventh aspect, a base station includes:

a message receiving unit, configured to receive a radio link control RRC connection setup request or an RRC setup complete message sent by the UE after receiving the redirect command message sent by the base station of the first cell, and a requesting unit, configured to send a service to the core network Requesting a message, and receiving historical information of the handover performed by the UE sent by the core network;

The indication information sending unit is configured to determine, according to the historical information of the handover performed by the UE, that the UE sends the ping-pong handover indication information to the third cell that is camped on before the UE performs the ping-pong handover.

According to a twelfth aspect, a base station includes:

The RRC message receiving unit is configured to: after receiving the redirection command message sent by the base station of the first cell, send the radio link control RRC connection setup request or RRC setup complete message, where the RRC connection setup request or RRC setup completes The message carries the eleventh redirection indication information including the first cell identifier;

a service requesting unit, configured to send a service request message to the core network, where the service request message carries the eleventh redirection indication information, where the core network determines that the UE performs the ping-pong handover, and then the third cell camped before the UE is switched. Send ping-pong switching indication information.

The embodiment of the invention provides a method and a device for reporting and acquiring redirection information, which are received by the UE. After the redirection command is performed, the information about the redirection event is recorded, and the information about the redirection event is reported to the network side, so that the network side device can obtain the redirection information of the UE, so that the base station that initiates the handover or redirection can Subsequent optimization operations are performed based on the redirect information. DRAWINGS

FIG. 1 is a flowchart of a method for reporting redirection information according to an embodiment of the present invention;

2 is a flowchart of a method corresponding to Embodiment 1 according to an embodiment of the present invention;

3 is a flowchart of a method corresponding to Embodiment 2 according to an embodiment of the present invention;

4 is a flowchart of a method corresponding to Embodiment 3 according to an embodiment of the present invention;

FIG. 5 is a flowchart of a method corresponding to Embodiment 4 according to an embodiment of the present disclosure;

FIG. 6 is a flowchart of a method corresponding to Embodiment 5 according to an embodiment of the present disclosure;

FIG. 7 is a flowchart of a method corresponding to Embodiment 6 according to an embodiment of the present disclosure;

FIG. 8 is a flowchart of a method corresponding to Embodiment 7 according to an embodiment of the present invention;

FIG. 9 is a flowchart of a method for acquiring redirection information according to an embodiment of the present invention;

10 is a second flowchart of a method for reporting redirection information according to an embodiment of the present invention; FIG. 11 is a third flowchart of a method for reporting redirection information according to an embodiment of the present invention;

FIG. 12 is a fourth flowchart of a method for reporting redirection information according to an embodiment of the present invention;

FIG. 13 is a fifth flowchart of a method for reporting redirection information according to an embodiment of the present invention;

FIG. 14 is a schematic structural diagram of a user equipment according to an embodiment of the present disclosure;

FIG. 15 is a schematic structural diagram of a base station according to an embodiment of the present disclosure;

FIG. 16 is a second schematic structural diagram of a base station according to an embodiment of the present disclosure;

FIG. 17 is a third schematic structural diagram of a base station according to an embodiment of the present disclosure;

FIG. 18 is a fourth schematic structural diagram of a base station according to an embodiment of the present disclosure;

FIG. 19 is a fifth schematic structural diagram of a base station according to an embodiment of the present disclosure;

FIG. 20 is a second schematic structural diagram of a user equipment according to an embodiment of the present disclosure;

FIG. 21 is a sixth schematic structural diagram of a base station according to an embodiment of the present invention. detailed description

The embodiment of the present invention provides a method and a device for reporting and retrieving redirection information. After receiving a redirection command, the UE records the related information of the redirection event, and reports the related information of the redirection event to the network side. The network side device is enabled to obtain the redirection information of the UE, so that the base station that initiates the handover or redirection can perform subsequent optimization operations according to the redirection information.

As shown in FIG. 1 , the redirection information reporting method provided by the embodiment of the present invention includes: Step S101: After receiving a redirection command message sent by a base station of a first cell, the UE records related information of a redirection event.

Step S102: The UE reports related information of the redirect event to the network side.

The UE records the information about the redirection event and reports the information about the redirection event to the network side, so that the network side can obtain the redirection of the UE in time, so that the network side can perform subsequent optimization operations.

In the following, according to different actual situations, a detailed description will be given by way of specific embodiments:

Embodiment 1

In this embodiment, after receiving the redirect command message sent by the base station of the first cell, the UE redirects to the second cell according to the redirect command, but the RRC connection setup fails, the UE records related information, and initiates RRC again. When connected, or after establishing an RRC connection, it is sent to the corresponding base station.

At this time, in step S101, the related information of the redirect event is recorded, which specifically includes:

After determining that the radio link control RRC connection establishment of the base station of the second cell fails, the first information is recorded, where the first information includes: a first cell identifier and a second cell identifier;

The RRC connection establishment process is triggered by a redirect command message. That is to say, when the first cell sends a redirect command to the UE, the service of the UE does not end. After the UE receives the redirect and selects a cell, the service establishment process is still initiated, and the service establishment process includes an RRC connection establishment process.

In step S102, the UE reports the related information of the redirection event to the network, and the method includes: when the UE initiates an RRC connection setup to the third cell, or after the UE enters the connection state in the third cell, Transmitting the first redirection indication information including the first information to the third cell, where the base station of the third cell sends the second redirection indication information to the base station of the first cell, where the second redirection indication information includes: a first redirection indication information;

The third cell and the second cell are the same cell or different cells.

Further, the first information may further include one or a combination of the following:

The second redirection indication information may further include one or a combination of the following:

When the frequency of the second cell is different from the frequency indicated by the first cell, it may be considered to be redirected to the wrong frequency or the redirection fails. At this time, the second redirection indication information further includes: the UE redirects to the error. The frequency and/or UE redirection failed.

Preferably, the UE may further add the first information to the connection establishment failure variable, so that the UE and the network side subsequently obtain the corresponding information by using the variable.

In the following, as shown in FIG. 2, the third cell and the second cell are different cells, and the detailed description includes:

Step S201: The base station of the first cell sends a redirect command message to the UE, where the redirect command message includes: frequency point information, information on the redirect event;

The frequency point information is used to indicate that the UE selects a suitable cell at the frequency point, and performs cell camping. The frequency point information may be an Absolute Radio Frequency Channel Number (ARFCN), and the redirect event reporting information is used. The information indicating whether the UE records the redirection event is reported and reported. If the UE needs to record the information about the redirection event and reports the information, the redirection command message does not need to carry the redirection event report information.

Step S202: The UE initiates a cell selection process, selects a cell to camp, and when the RR connection is initiated, an RRC connection setup fails. The RRC connection setup fails, which means that the UE still does not receive the RRC connection setup message before the T300 timer expires.

Step S203: The UE records the first information, including: a first cell identifier, a tracking area/routing area identifier, a second cell identifier, target frequency point information, and an identifier of the UE in the first area (eg, C-RNTI (Cell-Radio) Network Temporary Identifier, information such as short medium access control integrity (short media access control integrity protection), time when the UE receives the redirect command until the RRC connection establishment fails, and the UE The measurement result of the related measurement is performed; wherein, for the identifier of the tracking area/routing area, the identifier of the tracking area/routing area of the first 'area may be included, and the identifier of the tracking area/routing area of the second cell may also be included.

The cell identifier includes: a frequency point information of the cell, a physical identifier of the cell, a location area identifier of the cell, a tracking area identifier, a Public Land Mobile Network (PLMN) identifier, and a global cell identifier. The physical identification of the cell is the primary scrambling code for the UMTS (Universal Mobile Telecommunication System), and the PCI (physical cell identity) for the LTE (Long Term Evolution).

Step S204: When the UE initiates the RRC connection establishment or enters the connection state in the third cell, the first redirection indication information is reported to the base station of the third cell, where the first redirection indication information includes the first information and the current distance RRC. The interval at which the connection establishment failed.

Step S205: The base station of the third cell identifies the cell that sends the redirection command according to the identifier of the first cell in the first redirection indication information, and sends the second redirection indication information to the base station of the first cell. Optionally, the base station of the third cell may further determine, according to the identifier of the third cell and the target frequency point information, whether the UE is redirected to the wrong frequency point, and is carried in the second redirection indication information.

The first redirection indication information and the second redirection indication information are specific to the redirection indication information in the scenario, and after the corresponding network side device receives the first redirection indication information or the second redirection indication information, The event corresponding to the redirect indication information may be determined, and the difference between each redirect indication information may be embodied by a type or by a name. Embodiment 2

In this embodiment, after receiving the redirection command message sent by the base station of the first cell, the UE, after being redirected to the second cell according to the redirection command, records the related information and sends the information to the base station of the second cell. The second cell is not necessarily the frequency point indicated by the base station of the first cell.

After determining that the RRC connection with the base station of the second cell is successfully established, the second information is recorded, where the second information includes: a first cell identifier;

In step S102, the UE reports the related information of the redirection event to the network, and the method includes: the UE sends the third redirection indication information including the second information to the second cell, where the base station of the second cell sends the information to the base station of the first cell. The fourth redirection indication information includes: third redirection indication information.

Further, the second information may further include one or a combination of the following:

The fourth redirection indication information may further include one or a combination of the following:

The second cell identity and whether the UE has successfully redirected, whether the UE is directed to the wrong frequency point. Specifically, as shown in FIG. 3, in the embodiment, the redirection information reporting method specifically includes: Step S301: The base station of the first cell sends a redirection command message to the UE, where the redirection command message includes: frequency point information, Redirect information on the event;

Step S302: The UE initiates a cell selection process, selects a cell to camp, and successfully redirects to the second cell. Step S303: The UE records the second information, where the second information includes: a first cell identifier, a tracking area/routing area identifier, an identifier of the UE in the first cell, a target frequency point information, an identifier of the UE in the first cell, and a UE receiving Whether to redirect the command to the time when the RRC connection is initiated, whether the UE has successfully redirected, and whether the UE is directed to the wrong frequency point;

Step S304: The UE sends third redirection indication information including the second information to the base station of the second cell.

Step S305: The base station of the second cell sends the fourth redirection indication information to the base station of the first cell, where the fourth redirection indication information includes: the third redirection indication information, the second cell identifier, and whether the UE has successfully redirected, the UE Whether to target the wrong frequency.

The third redirection indication information and the fourth redirection indication information are specific to the redirection indication information in the scenario, and after the corresponding network side device receives the third redirection indication information or the fourth redirection indication information, The event corresponding to the redirect indication information may be determined, and the difference between each redirect indication information may be embodied by a type or by a name. Embodiment 3

In this embodiment, after receiving the redirect command message sent by the base station of the first cell, the UE redirects to the second cell according to the redirect command, and after the radio link fails, the UE records relevant information, and the UE is in the first After the three cells enter the connected state, the recorded information is sent to the base station of the third cell.

In step S102, the UE reports the related information of the redirection event to the network, and the method includes: after the third cell enters the connected state, the UE sends the third information to the third cell, and the interval between the current distance and the RRC connection establishment failure. The fifth redirection indication information, the base station of the third cell sends the sixth redirection indication information including the fifth redirection indication information and the third cell identifier to the base station of the second cell, and the base station of the second cell determines the UE redirection. After the wrong frequency point, the seventh base redirection indication information and the seventh point of the UE redirecting to the wrong frequency point are sent to the base station of the first cell. Redirect indication information.

Further, the third information may further include one or a combination of the following:

Tracking area/routing area identifier, target frequency point information, identity of the UE in the first 'area, time when the UE receives the redirect command to the failure of the wireless link.

Further, the UE may also add the third information to the radio link failure report variable. Specifically, as shown in FIG. 4, in the embodiment, the redirection information reporting method specifically includes: Step S401: The base station of the first cell sends a redirection command message to the UE, where the redirection command message includes: frequency point information, Redirect information on the event;

The frequency point information is used to indicate that the UE selects a suitable cell at the frequency point to perform cell camping, and the frequency point information may be an absolute wireless channel number (Absolute Radio Frequency Channel).

The number of the redirection event is used to indicate whether the UE records the information about the redirection event and reports it. If the UE needs to record the information about the redirection event and reports it, the redirection command message does not need to be carried. Directed event reporting information.

Step S402, the UE initiates a cell selection process, selects a cell to camp, and successfully redirects to the second cell. At this time, the UE may send the previously recorded redirection indication information to the second cell, and the specific steps are the same as the second embodiment;

Step S403: The UE fails to generate a radio link in the second cell, and the UE records the third information, where the third information includes: a first cell identifier, a tracking area/routing area identifier, a second cell identifier, target frequency point information, and the UE is in the UE. The identifier of the first cell, the time when the UE receives the redirect command to the failure of the wireless link;

Step S404: After the third cell enters the connected state, the UE sends, to the third cell, fifth redirection indication information including the third information and the interval between the current distance and the RRC connection establishment failure.

Step S405: The base station of the third cell sends the sixth redirection indication information including the fifth redirection indication information and the third cell identifier to the base station of the second cell.

Step S406: After determining, by the base station of the second cell, that the UE redirects to the wrong frequency point, the base station sends the seventh redirection indication information including the sixth redirection indication information and the frequency point that the UE redirects to the error to the base station of the first cell. The fifth redirection indication information, the sixth redirection indication information, and the seventh redirection indication information are dedicated to the redirection indication information in the scenario, and the corresponding network side device receives the fifth redirection indication information, After the redirection indication information or the seventh redirection indication information, the event corresponding to the redirection indication information may be determined, and the difference between the redirection indication information may be embodied by a type or by a name. Embodiment 4

In this embodiment, after the UE is switched from the third cell to the first cell, after receiving the redirect command message sent by the base station of the first cell, the UE redirects to the second cell according to the redirect command, and the UE records relevant information. And transmitting the recorded information to the base station of the second cell.

At this time, in step S101, the UE receives the redirect command message sent by the base station of the first cell, which specifically includes:

In step S101, the related information of the redirect event is recorded, which specifically includes:

After the UE is redirected to the second cell according to the redirection command message, the first information is recorded, where the first information includes: a first cell identifier;

In step S102, the UE reports the related information of the redirection event to the network, and the method includes: the UE sends an eighth redirection indication information including the fourth information to the second cell, where the base station of the second cell sends the information to the base station of the first cell. a ninth redirection indication information, where the ninth redirection indication information includes: an eighth redirection indication information, a second cell identifier, and whether the UE has successfully redirected, whether the UE is redirected to an incorrect frequency point; After the base station determines that the UE performs the ping-pong handover, it sends the ping-pong handover indication information to the base station of the third cell, where the ping-pong handover indication information includes: ninth redirection indication information.

Further, the fourth information further includes one or a combination of the following:

Tracking area/routing area identifier, identity of the UE in the first 'area, target frequency point information, identity of the UE in the first cell, time when the UE receives the redirect command to initiate the establishment of the RRC connection, whether the UE has become Work redirection, whether the UE is directed to the wrong frequency point;

The third cell identifier, the handover reason, and the first cell identity.

Specifically, as shown in FIG. 5, in the embodiment, the redirection information reporting method specifically includes: Step S501: The base station of the third cell sends a handover request message to the base station of the first cell, where the third cell identifier is included;

Step S502: The base station of the first cell sends a handover response message to the base station of the third cell. Step S503: The base station of the first cell sends a redirection command message to the UE, where the redirection command message includes: frequency point information, redirection event Information

Step S504: After the UE redirects to the second cell according to the redirection command message, the fourth information is recorded, and the eighth redirection indication information including the fourth information is sent to the second cell, where the fourth information includes: the first cell identifier The tracking area/routing area identifier, the identifier of the UE in the first 'area, the target frequency point information, the identifier of the UE in the first ', the area, the time when the UE receives the redirect command to initiate the establishment of the RRC connection, whether the UE has Successfully redirected, whether the UE is directed to the wrong frequency point;

Step S505: The base station of the second cell sends the ninth redirection indication information to the base station of the first cell, where the ninth redirection indication information includes: an eighth redirection indication information, a second cell identifier, and whether the UE has successfully redirected, the UE Whether it is directed to the wrong frequency point;

Step S506: The base station of the first cell determines that the UE performs the ping-pong handover, and sends the ping-pong handover indication information to the base station of the third cell, where the ping-pong handover indication information includes: the ninth redirection indication information, the third cell identifier, and the handover Cause and first cell identity.

The eighth redirection indication information and the ninth redirection indication information are specific to the redirection indication information in the scenario, and the corresponding network side device receives the eighth redirection indication information or the ninth re-determination After the indication information is obtained, the event corresponding to the redirection indication information may be determined, and the difference between the redirection indication information may be embodied by a type or by a name. Embodiment 5

In this embodiment, the redirection command message carries the history information of the handover performed by the UE, and the redirection indication information reported by the UE also carries the history information of the handover performed by the UE, and the base station of the second cell performs the handover history information according to the UE. The cell camped before the UE handover may be directly determined, and the ping-pong handover indication information is sent to the base station of the cell.

After the UE is redirected to the second cell according to the redirection command message, the fifth information is recorded, where the fifth information includes: the first cell identifier and the history information that the UE performs the handover;

In step S102, the UE reports the related information of the redirection event to the network, and the method includes: the UE sends the tenth redirection indication information including the fifth information to the second cell, and the base station of the second cell performs the handover history information according to the UE. After the ping-pong handover is performed, the UE sends the ping-pong handover indication information to the base station of the third cell, where the ping-pong handover indication information includes: the tenth redirection indication information.

Further, the fifth information further includes one or a combination of the following:

Tracking area/routing area identifier, identity of the UE in the first 'area, target frequency point information, identity of the UE in the first cell, time when the UE receives the redirect command to initiate the establishment of the RRC connection, whether the UE has successfully redirected, Whether the UE is directed to the wrong frequency point; The ping-pong switching indication information also includes one or a combination of the following:

The historical information of the handover performed by the UE includes:

The third cell identifier and the identifier of the first cell.

Further, the historical information of the handover performed by the UE further includes one or a combination of the following:

Specifically, as shown in FIG. 6, in the embodiment, the redirection information reporting method specifically includes: Step S601: The base station of the third cell sends a handover request message to the base station of the first cell, where the third cell identifier is included;

Step S602: The base station of the first cell sends a handover response message to the base station of the third cell. Step S603: The base station of the first cell sends a redirection command message to the UE, where the redirection command message includes: frequency information, redirection event The upper information and the historical information of the UE performing the handover; wherein the frequency point information is used to indicate that the UE selects a suitable cell at the frequency point to perform cell camping, and the frequency point information may be an Absolute Radio Frequency Channel Number (Absolute Radio Frequency Channel Number, A redirection event reporting information is used to indicate whether the UE records the related information of the redirection event and reports the information. If the UE needs to record the information about the redirection event and reports the information, the redirection command message does not need to carry the redirection event. Report the information.

Step S604: After the UE redirects to the second cell according to the redirect command message, the fifth information is recorded, and the tenth redirection indication information including the fifth information is sent to the base station of the second cell, where the fifth information includes: The cell identifier, the tracking area/routing area identifier, the identity of the UE in the first 'area, the target frequency point information, the identity of the UE in the first cell, the time when the UE receives the redirect command to initiate the establishment of the RRC connection, whether the UE has succeeded Redirection, whether the UE is directed to the wrong frequency point, and historical information of the handover by the UE;

Step S605: The base station of the second cell determines, according to historical information of the handover performed by the UE, that the UE is After the ping-pong switch, the ping-pong handover indication information is sent to the base station of the third cell, where the ping-pong handover indication information includes: a tenth redirection indication information, a redirection command message, a second cell identifier, a third cell identifier, and a target frequency. Point, switch reason and first 'zone ID.

The tenth redirection indication information is specific to the redirection indication information in the scenario, and after the corresponding network side device receives the tenth redirection indication information, the event corresponding to the redirection indication information may be determined. The difference between the orientation indications can be expressed by type or by name. Embodiment 6

In this embodiment, the base station of the first cell sends the history information of the UE to the core network, and the base station of the second cell receives the eleventh redirection indication information sent by the UE, and also the eleventh redirection indication information. After being sent to the core network, the core network determines, according to the handover history information of the UE, that the UE performs ping-pong handover, and then sends a ping-pong handover indication to the base station of the third cell.

The UE records the sixth information including the first 'zone identifier;

In step S102, the UE reports the related information of the redirection event to the network, and the method includes: when the UE sends an RRC connection setup request or sends an RRC setup complete message to the base station of the second cell, carrying the eleventh weight including the sixth information Orientation indication information, the eleventh redirection indication information is sent by the base station of the second cell to the core network, and the core network determines, according to the handover history information of the UE, that the UE performs ping-pong handover, and sends a ping-pong handover indication to the base station of the third cell. . Specifically, as shown in FIG. 7, in the embodiment, the redirection information reporting method specifically includes: Step S701: The base station of the third cell sends a handover request message to the base station of the first cell, where the information may include the history information of the handover performed by the UE. ;

Step S702: The base station of the first cell sends a redirect command message to the UE, where the redirect command message includes: frequency point information, information on the redirect event;

Step S703: The base station of the first cell sends, to the SGSN, history information of the handover performed by the UE including the information of the current handover of the UE.

Step S704: The UE records the sixth information including the first cell identifier, and when transmitting the RRC connection setup request or the RRC setup complete message to the base station of the second cell, carrying the eleventh redirect indication information including the sixth information;

Step S705: The base station of the second cell carries the eleventh redirection indication information in the service request message and sends the message to the MME.

Step S706: The MME requests the SGSN to request the UE to perform the handover history information.

Step S707: The SGSN sends the history information of the handover of the UE to the MME.

Step S708: The MME determines, according to the historical information of the handover performed by the UE, that the UE sends a ping-pong handover indication to the base station of the third cell after performing the ping-pong handover.

The eleventh redirection indication information is specific to the redirection indication information in the scenario, and after the corresponding network side device receives the eleventh redirection indication information, the event corresponding to the redirection indication information may be determined. The difference between each redirection indication information can be expressed by type or by name. Example VII. In this embodiment, after receiving the redirect command message sent by the base station of the first cell, the UE redirects to the second cell according to the redirect command after the UE is switched from the third cell to the first cell, and the base station of the first cell Transmitting the history information of the UE to the core network, and after receiving the RRC connection setup request or the RRC setup complete message sent by the UE, the base station of the second cell performs a service request to the core network, and the core network determines the UE according to the handover history information of the UE. After the ping-pong handover, the ping-pong handover indication is sent to the base station of the third cell.

Specifically, as shown in Figure 8, it includes:

Step S801: The base station of the third cell sends a handover request message to the base station of the first cell, where the information about the history of the handover may be included by the UE.

Step S802: The base station of the first cell sends a redirect command message to the UE, where the redirect command message includes: frequency point information;

The frequency point information is used to indicate that the UE selects a suitable cell at the frequency point to perform cell camping, and the frequency point information may be an Absolute Radio Frequency Channel Number (ARFCN).

Step S803: The base station in the first 'area transmits, to the MME, history information of the handover performed by the UE including the information of the current handover of the UE;

Step S804: The UE sends an RRC connection setup request or sends an RRC setup complete message to the base station of the second cell.

Step S805: The base station of the second cell sends a service request message to the MME.

Step S806: The MME determines, according to the handover history information of the UE, that the UE sends a ping-pong handover indication to the base station of the third cell after performing ping-pong handover.

In the above embodiments, the RRC connection establishment process is triggered by a redirect command message. That is to say, when the first cell sends a redirect command to the UE, the UE's service does not end. After the UE receives the redirection and selects a cell, the service establishment process is still initiated, and the service establishment process includes an RRC connection establishment process.

In the above embodiments, the second cell is:

After receiving the redirect command message, the UE performs the cell selected after the cell selection; or After receiving the redirect command message, the UE initiates a cell in which the RRC connection is established.

The embodiment of the present invention further provides a method for acquiring redirection information, as shown in FIG. 9, the method includes: Step S901: A base station of a first cell sends a redirect command message to a UE;

Step S902: The base station of the first cell receives the redirection indication information sent by the base station that is relocated by the UE after the redirection of the UE, and the redirection indication information includes information about the redirection event of the base station that the UE records and reports to the base station that is redirected by the UE.

Corresponding to the fourth embodiment, before the base station of the first cell sends the redirection command message to the UE, the method further includes: determining, by the base station of the first cell, that the UE switches from the third cell to the first cell;

After receiving the redirection indication information sent by the base station that is relocated after the UE is redirected, the base station of the first cell further includes:

The base station of the first cell determines that the UE performs redirection within a set time of handover to the first cell, and transmits ping-pong handover indication information including redirection indication information to the base station of the third cell.

The embodiment of the present invention further provides a redirection information reporting method, corresponding to the first, second, third, and fourth embodiments, as shown in FIG. 10, including:

Step S1001: The base station of the second cell receives the redirection indication information sent by the UE after receiving the redirection command message sent by the base station of the first cell, and records the related information of the redirection event. Step S1002: Redirecting the indication information to form new redirection indication information including the redirection indication information;

Step S1003: The base station of the second cell sends new redirection indication information to the base station of the first cell.

Corresponding to the fifth embodiment, the embodiment of the present invention further provides a redirection information reporting method, as shown in FIG. 11, which includes:

Step S1101: The base station of the second cell receives the redirection indication information sent by the UE after receiving the redirection command message sent by the base station of the first cell, and records the related information of the redirection event. Step S1102: The base station of the second cell is configured according to Resetting the history information of the UE handover included in the indication information, determining that the ping-pong handover indication information is sent to the third cell camped before the UE handover after the ping-pong handover occurs. Corresponding to Embodiment 7, the embodiment of the present invention further provides a method for redirecting information, as shown in FIG. 12, including:

Step S1201: After receiving the redirection command message sent by the base station of the first cell, the base station of the second cell receives the radio link control RRC connection establishment request or the RRC establishment complete message;

Step S1202: The base station of the second cell sends a service request message to the core network, and receives the history information that the UE sends the handover information sent by the core network.

Step S1203: The base station of the second cell determines, according to the historical information of the handover performed by the UE, that the UE sends the ping-pong handover indication information to the third cell that is camped on before the UE performs the ping-pong handover.

Corresponding to Embodiment 6, the embodiment of the present invention further provides a redirection information reporting method, as shown in FIG. 13, including:

Step S1301: After receiving the redirection command message sent by the base station of the first cell, the base station of the second cell receives the radio link control RRC connection setup request or the RRC setup complete message, the RRC connection setup request or the RRC setup. The completion message carries the eleventh redirection indication information including the first cell identifier;

Step S1302: The base station of the second cell sends a service request message to the core network, where the service request message carries the eleventh redirection indication information, and the core network determines that the UE performs the ping-pong handover, and then the third cell camped before the handover to the UE. Send ping-pong switching indication information.

The embodiment of the present invention further provides a user equipment, as shown in FIG. 14 , including:

The recording unit 1401 is configured to: after receiving the redirect command message sent by the base station of the first cell, record related information of the redirect event;

The reporting unit 1402 is configured to report related information of the redirect event to the network side.

Further, corresponding to the first embodiment, the recording unit 1401 records related information of the redirect event, which specifically includes:

The upper unit 1402 is specifically used for: When the RRC connection establishment is initiated to the third cell, or after the third cell enters the connected state, the first redirection indication information including the first information and the current interval of the RRC connection establishment failure is sent to the third cell, and the third redirection indication information is sent to the third cell. The base station of the cell sends the second redirection indication information to the base station of the first cell, where the second redirection indication information includes: first redirection indication information;

The third cell and the second cell are the same cell or different cells.

The first information also includes one or a combination of the following:

Preferably, when the third cell is not the second cell, the second redirection indication information further includes: the UE redirects to the wrong frequency point and/or the UE redirection failure.

Further, the recording unit 1401 is further configured to:

Add the first information to the connection establishment failure variable.

Corresponding to the second embodiment, the recording unit 1401 records the related information of the redirection event, and specifically includes: after determining that the RRC connection with the second cell is successfully established, the second information is recorded, where the second information includes: the first cell identifier;

The upper unit 1402 is specifically used for:

Further, the second information further includes one or a combination of the following:

Tracking area/routing area identifier, identity of the UE in the first 'area, target frequency point information, identity of the UE in the first cell, time when the UE receives the redirect command to initiate the establishment of the RRC connection, whether the UE has successfully redirected, Whether the UE is directed to the wrong frequency The fourth redirection indication information further includes one or a combination of the following:

The second cell identity and whether the UE has successfully redirected, whether the UE is directed to the wrong frequency point. Corresponding to the third embodiment, the recording unit 1401 records the related information of the redirection event, and specifically includes: after the redirection command message is redirected to the second cell, and the radio link fails, the third information is recorded, where the third information is recorded. The method includes: a first cell identifier, and a second cell identifier;

The upper unit 1402 is specifically used for:

Further, the third information further includes one or a combination of the following:

Preferably, the recording unit 1401 is further configured to:

The third information is added to the radio link failure reporting variable.

Corresponding to the fourth, fifth, and sixth embodiments, the recording unit 1401 receives the redirection command message sent by the base station in the first area, and specifically includes:

Corresponding to the fourth embodiment, the recording unit 1401 records the related information of the redirection event, and specifically includes: after the redirection command message is redirected to the second cell, the fourth information is recorded, where the fourth information includes: the first cell Identification

The upper unit 1402 is specifically used for:

Transmitting, by the base station of the second cell, the ninth redirection indication information, where the ninth redirection indication information packet is sent by the base station of the second cell to the second cell And including: the eighth redirection indication information, the second cell identifier, and whether the UE has successfully redirected, whether the UE is redirected to the wrong frequency point; and determining, by the base station of the first cell, that the UE is performing ping-pong handover, to the third cell The base station sends the ping-pong switching indication information, where the ping-pong switching indication information includes: ninth redirection indication information.

The third cell identifier, the handover reason, and the first cell identity.

Corresponding to the fifth embodiment, the redirection command message includes the history information that the UE performs the handover; the recording unit 1401 records the related information of the redirection event, which specifically includes:

The upper unit 1402 is specifically used for:

The ping-pong switching indication information also includes one or a combination of the following:

Preferably, the historical information that the UE performs the handover includes: The third cell identifier and the identifier of the first cell.

Preferably, the historical information of the handover performed by the UE further includes one or a combination of the following:

Corresponding to the sixth embodiment, the recording unit 1401 records related information of the redirection event, and specifically includes: recording sixth information including the identifier of the first cell;

The upper unit 1402 is specifically used for:

Corresponding to each embodiment, the second cell is:

The redirect command message includes:

The embodiment of the present invention further provides a base station, corresponding to the base station of the first cell in the embodiment of the present invention, as shown in FIG.

The sending unit 1501 is configured to send a redirect command message to the UE.

The receiving unit 1502 is configured to receive redirection indication information that is sent by the base station that is relocated after the UE is redirected, and the redirection indication information includes information about a redirection event that is recorded and reported by the UE to the base station that is relocated after the UE is redirected.

Corresponding to the third embodiment, the sending unit 1501 is further configured to:

Before transmitting the redirect command message to the UE, determining that the UE switches from the third cell to the first 'area; the receiving unit 1502 is further configured to: After receiving the redirection indication information sent by the base station that is relocated after the UE is redirected, the UE determines that the UE performs redirection within a set time of switching to the first cell, and sends a ping-pong switch including the redirection indication information to the base station of the third cell. Instructions.

The embodiment of the present invention provides a base station, where the base station corresponds to the base station of the second cell in the embodiment of the present invention, as shown in FIG.

The information receiving unit 1601 is configured to receive redirection indication information that is sent after the UE receives the redirection command message sent by the base station of the first cell, and records the related information of the redirection event;

The generating unit 1602 is configured to: according to the redirection indication information, form new redirection indication information including the redirection indication information;

The forwarding unit 1603 is configured to send new redirection indication information to the base station of the first cell. The embodiment of the present invention further provides a base station, where the base station corresponds to the second base station in the embodiment of the present invention. As shown in FIG. 17, the method includes:

The indication information receiving unit 1701 is configured to receive redirection indication information that is sent after the UE receives the redirection command message sent by the base station of the first cell, and then records the related information of the redirection event; the determining unit 1702 is configured to perform redirection according to the redirection And indicating the history information of the UE handover included in the indication information, determining that the ping-pong handover indication information is sent to the third cell that is camped before the handover of the UE after the ping-pong handover occurs.

The embodiment of the present invention further provides a base station, where the base station corresponds to the base station of the second cell in the embodiment of the present invention, as shown in FIG. 18, and includes:

The message receiving unit 1801 is configured to: after receiving, by the UE, the redirection command message sent by the base station of the first cell, the sent radio link control RRC connection establishment request or RRC establishment completion message;

The requesting unit 1802 is configured to send a service request message to the core network, and receive, by the core network, history information that the UE performs handover.

The indication information sending unit 1803 is configured to determine, according to the historical information of the handover performed by the UE, the ping-pong handover indication information sent by the UE to the third cell camped before the UE performs the ping-pong handover.

The embodiment of the present invention further provides a base station, where the base station corresponds to the second cell in the embodiment of the present invention. The base station, as shown in Figure 19, includes:

The RRC message receiving unit 1901 is configured to receive, after receiving the redirection command message sent by the base station of the first cell, the radio link control RRC connection setup request or the RRC setup complete message, the RRC connection setup request or the RRC establishment. The completion message carries the eleventh redirection indication information including the first cell identifier;

The service requesting unit 1902 is configured to send a service request message to the core network, where the service request message carries the eleventh redirection indication information, where the core network determines that the UE performs the ping-pong handover, and sends the third cell that is camped before the UE handover. Ping Pong switching indication information.

The embodiment of the present invention further provides a user equipment, as shown in FIG. 20, including a processor 2001 and a transceiver interface 2002, where:

The processor 2001 is configured to: after receiving the redirection command message sent by the base station of the first cell, the information about the redirection event is recorded by the transceiver interface 2002; and the related information of the redirection event is reported to the network side by the transceiver interface 2002. .

The embodiment of the present invention further provides a base station, as shown in FIG. 21, including a processor module 2101 and a transceiver interface module 2102, where:

The processor module 2101 is configured to send, by using the transceiver interface module 2102, a redirect command message to the UE, and receive, by the transceiver interface module 2102, redirection indication information sent by the base station that is camped after the UE is redirected, where the redirection indication information includes the UE. Recording and reporting information related to the redirect event of the base station that is camped after the UE is redirected;

Or

After receiving the redirection command message sent by the base station of the first cell, the redirection indication information sent by the UE after receiving the redirection event information is received by the transceiver interface module 2102; a new redirection indication information including the redirection indication information; sending, by the transceiving interface module 2102, the new redirection indication information to a base station of the first cell;

Or

For receiving, by the transceiver interface module 2102, the weight sent by the base station that the UE receives the first cell After the directional command message is sent, the redirection indication information is sent after the information about the redirection event is recorded. According to the history information of the UE handover included in the redirection indication information, after the ping-pong handover is performed, the UE is sent to the UE through the transceiver interface module 2102. The third cell camped before the handover sends the ping-pong handover indication information;

Or

After receiving the redirection command message sent by the UE receiving the first cell by the transceiver interface module 2102, the sent radio link controls an RRC connection setup request or an RRC setup complete message; and sends the packet to the core network through the transceiver interface module 2102. Receiving a service request message, and receiving the history information of the handover of the UE sent by the core network; determining, according to the history information of the handover performed by the UE, that the UE performs the ping-pong handover, and sends the third cell that is camped before the UE is switched by the transceiver interface module 2102. Ping-pong switching indication information;

Or

Receiving, by the transceiver interface module 2102, the radio link control RRC connection setup request or RRC setup complete message sent by the UE after receiving the redirect command message sent by the base station of the first cell, in the RRC connection setup request or the RRC setup complete message Carrying the eleventh redirection indication information including the first cell identifier; sending, by the transceiver interface module 2102, a service request message to the core network, where the service request message carries the eleventh redirection indication information, and the core network determines the UE to perform After the ping-pong handover, the ping-pong handover indication information is sent to the third cell camped before the UE handover.

Those skilled in the art will appreciate that embodiments of the present invention can be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment, or a combination of software and hardware. Moreover, the invention can be embodied in the form of one or more computer program products embodied on a computer-usable storage medium (including but not limited to disk storage, CD-ROM, optical storage, etc.) in which computer usable program code is embodied. The present invention has been described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (system), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flowchart illustrations and/or FIG. These computer program instructions can be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing device to produce a machine for the execution of instructions for execution by a processor of a computer or other programmable data processing device. Means for implementing the functions specified in one or more of the flow or in a block or blocks of the flow chart.

The computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture comprising the instruction device. The apparatus implements the functions specified in one or more blocks of a flow or a flow and/or block diagram of the flowchart.

These computer program instructions can also be loaded onto a computer or other programmable data processing device such that a series of operational steps are performed on a computer or other programmable device to produce computer-implemented processing for execution on a computer or other programmable device. The instructions provide steps for implementing the functions specified in one or more of the flow or in a block or blocks of a flow diagram.

Although the preferred embodiment of the invention has been described, it will be apparent to those skilled in the < Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and the modifications and modifications The spirit and scope of the embodiments of the present invention are departed. Thus, it is intended that the present invention cover the modifications and modifications of the embodiments of the invention.

Claims

Rights request

1. A method for reporting redirection information, characterized by including:

After the user equipment UE receives the redirection command message sent by the base station of the first cell, it records the relevant information of the redirection event;

The UE reports the relevant information of the redirection event to the network side.

2. The method of claim 1, wherein the recording of relevant information of the redirection event specifically includes:

After it is determined that the radio link control RRC connection with the second cell fails to be established, first information is recorded, and the first information includes: a first cell identifier and a second cell identifier;

The UE reports relevant information of the redirection event to the network side, specifically including:

When the UE initiates RRC connection establishment to the third cell or after the UE enters the connected state in the third cell, it sends first redirection indication information including the first information to the third cell, from the base station of the third cell to the base station of the first cell. Send second redirection instruction information, where the second redirection instruction information includes: first redirection instruction information;

The third cell and the second cell are the same cell or different cells.

3. The method of claim 2, wherein the first information also includes one or a combination of the following:

Tracking area or routing area identification, target frequency point information, UE identification in the first area, the time from when the UE receives the redirection command to when the RRC connection establishment failure occurs, and the measurement results of related measurements performed by the UE;

The second redirection indication information also includes one or a combination of the following:

The current interval between the failure of RRC connection establishment and the third cell identity and the first cell identity.

4. The method of claim 2, wherein the second redirection indication information further includes: the UE is redirected to a wrong frequency and/or the UE redirection fails.

5. The method of claim 2, further comprising: The UE adds the first information to the connection establishment failure variable.

6. The method of claim 1, wherein the recording of relevant information of the redirection event specifically includes:

After it is determined that the RRC connection with the second cell is successfully established, second information is recorded, and the second information includes: the first cell identifier;

The UE sends third redirection indication information including the second information to the second cell, and the base station of the second cell sends fourth redirection indication information to the base station of the first cell. The fourth redirection indication information includes: Third redirection indication information.

7. The method of claim 6, wherein the second information also includes one or a combination of the following:

Tracking area/routing area identification, UE identification in the first area, target frequency point information, UE identification in the first cell, the time from when the UE receives the redirection command to initiating RRC connection establishment, whether the UE has been redirected successfully, Whether the UE is directed to the wrong frequency point

The fourth redirection indication information also includes one or a combination of the following:

The second cell identity and whether the UE has been successfully redirected and whether the UE has been directed to the wrong frequency point.

8. The method of claim 1, wherein the UE records relevant information of the redirection event, specifically including:

After the redirection command message is redirected to the second cell and a wireless link failure occurs, third information is recorded, and the third information includes: a first cell identifier and a second cell identifier;

After the UE enters the connected state in the third cell, the UE sends the fifth redirection indication information including the third information and the current interval time from the RRC connection establishment failure to the third cell, and is sent by the base station of the third cell to the base station of the second cell. The sixth redirection indication information including the fifth redirection indication information and the third cell identity is sent by the base station of the second cell including the sixth redirection indication to the base station of the first cell after determining that the UE is redirected to the wrong frequency point. information and/or seventh redirection indication information that redirects the UE to the wrong frequency point.

9. The method of claim 8, wherein the third information also includes one or a combination of the following:

Tracking area/routing area identification, target frequency point information, UE's identification in the first area, and the time from when the UE receives the redirection command to the occurrence of wireless link failure.

10. The method of claim 8, further comprising:

The UE adds the third information to a wireless link failure report variable.

11. The method of claim 1, wherein the UE receives a redirection command message sent by the base station of the first cell, specifically including:

After the UE is handed over from the third cell to the first cell, it receives the redirection command message sent by the base station of the first cell.

12. The method of claim 11, wherein the UE records relevant information of the redirection event, specifically including:

After the UE is redirected to the second cell according to the redirection command message, the fourth information is recorded, and the fourth information includes: the first cell identifier;

The UE sends eighth redirection indication information including fourth information to the second cell, and the base station of the second cell sends ninth redirection indication information to the base station of the first cell. The ninth redirection indication information includes: eighth The redirection indication information, the second cell identification and whether the UE has been redirected successfully and whether the UE has been redirected to the wrong frequency point; and after the base station of the first cell determines that the UE is performing ping-pong handover, it sends a signal to the base station of the third cell. The ping-pong switching indication information includes: ninth redirection indication information.

13. The method of claim 12, wherein the fourth information further includes one or a combination of the following:

Tracking area/routing area identification, UE identification in the first area, target frequency point information, UE identification in the first cell, the time from when the UE receives the redirection command to initiating RRC connection establishment, whether the UE has been redirected successfully, Whether the UE is directed to the wrong frequency;

The ping-pong handover indication information also includes one or a combination of the following: The third cell identification, the handover reason and the first cell identification.

14. The method of claim 11, wherein the redirection command message includes historical information of the UE switching;

The UE records relevant information of the redirection event, specifically including:

After the UE is redirected to the second cell according to the redirection command message, the fifth information is recorded. The fifth information includes: the first cell identifier and the UE handover history information;

The UE sends the tenth redirection indication information including the fifth information to the second cell. After the base station of the second cell determines that the UE is performing a Ping-Pong handover based on the historical information of the UE handover, it sends a Ping-Pong handover indication to the base station of the third cell. Information, the ping pong handover indication information includes: tenth redirection indication information.

15. The method of claim 14, wherein the fifth information further includes one or a combination of the following:

The ping pong handover indication information also includes one or a combination of the following:

Redirection command message, second cell identity, third cell identity, target frequency point, handover reason and first cell identity.

16. The method of claim 14, wherein the historical information of the UE handover specifically includes:

The identity of the third cell and the identity of the first cell.

17. The method according to claim 16, wherein the history information of the UE switching also includes one or a combination of the following:

The residence time of the UE in the third cell, the reason for the handover of the UE in the third cell, the identity of the UE in the third cell, the residence time of the UE in the first cell, the identity of the UE in the first cell, the identity of the UE in the first cell The reason why the community redirection occurs.

18. The method of claim 1, wherein the UE records relevant information of the redirection event, specifically including:

The UE record includes sixth information of the first zone identifier;

When the UE sends an RRC connection establishment request or an RRC establishment completion message to the base station of the second cell, it carries the eleventh redirection indication information including the sixth information, and the base station of the second cell sends the eleventh redirection indication information. The directional indication information is sent to the core network, and after the core network determines that the UE performs ping-pong handover based on the UE's handover history information, it sends a ping-pong handover indication to the base station of the third cell.

19. The method according to any one of claims 2 to 18, wherein the second cell is: the cell selected after the UE performs cell selection after receiving the redirection command message; or

After receiving the redirection command message, the UE initiates the cell in which the RRC connection is established.

20. The method of claim 1, wherein the redirection command message includes:

Redirect event reporting information used to indicate that the UE needs to record and report redirection-related information.

21. A method for obtaining redirection information, characterized by including:

The base station of the first cell sends a redirection command message to the UE;

The base station of the first cell receives the redirection indication information sent by the base station where the UE camps after redirection. The redirection indication information includes the relevant information of the redirection event recorded and reported by the UE to the base station where the UE camps after redirection.

22. The method of claim 11, wherein before the base station of the first cell sends the redirection command message to the UE, it further includes:

After the base station of the first cell receives the redirection indication information sent by the base station where the UE resides after redirection, it also includes:

The base station of the first cell determines that the UE is redirected within the set time for switching to the first cell, and sends the ping-pong handover indication information including the redirection indication information to the base station of the third cell.

23. A method for reporting redirection information, characterized by including:

After the base station of the second cell receives the redirection command message sent by the base station of the first cell, the UE records the relevant information of the redirection event and sends the redirection indication information;

The base station of the second cell sends the new redirection indication information to the base station of the first cell.

24. A method for reporting redirection information, characterized by including:

The base station of the second cell determines that a ping-pong handover has occurred on the UE based on the UE handover history information included in the redirection indication information, and then sends the ping-pong handover indication information to the third cell where the UE camped before the handover.

25. A method for reporting redirection information, characterized by including:

The base station of the second cell receives the radio link control RRC connection establishment request or RRC establishment completion message sent by the UE after receiving the redirection command message sent by the base station of the first cell;

The base station of the second cell sends a service request message to the core network, and receives the historical information of the UE handover sent by the core network;

After the base station of the second cell determines that the UE performs Ping-Pong handover based on the historical information of the UE handover, it sends Ping-Pong handover indication information to the third cell where the UE camped before the handover.

26. A method for reporting redirection information, characterized by including:

After the base station of the second cell receives the redirection command message sent by the base station of the first cell, the base station of the second cell sends a radio link control RRC connection establishment request or RRC establishment completion message. In the RRC connection establishment request or RRC establishment completion message, Carrying eleventh redirection indication information including the first cell identity;

The base station of the second cell sends a service request message to the core network. The service request message carries the eleventh redirection indication information. After the core network determines that the UE performs ping-pong handover, it sends it to the third cell where the UE camped before the handover. Ping-pong switching indication information.

27. A user equipment, characterized by: including:

A recording unit, configured to record relevant information of the redirection event after receiving the redirection command message sent by the base station of the first cell;

The reporting unit is used to report relevant information of the redirection event to the network side.

28. The user equipment according to claim 27, characterized in that the recording unit records relevant information of the redirection event, specifically including:

The reporting unit is specifically used for:

When initiating RRC connection establishment to the third cell or after the UE enters the connected state in the third cell, the first redirection indication information including the first information is sent to the third cell, and is sent by the base station of the third cell to the base station of the first cell. Second redirection indication information, the second redirection indication information includes: first redirection indication information;

The third cell and the second cell are the same cell or different cells.

29. The user equipment according to claim 28, characterized in that the first information also includes one or a combination of the following:

30. The user equipment according to claim 28, characterized in that, when the third cell is not the second cell, the second redirection indication information further includes: the UE is redirected to a wrong frequency point and/or UE redirection failed.

31. The user equipment according to claim 28, wherein the recording unit is further configured to: add the first information to a connection establishment failure variable.

32. The user equipment according to claim 27, characterized in that the recording unit records relevant information of the redirection event, specifically including:

The reporting unit is specifically used for:

Send third redirection indication information including the second information to the second cell, and send fourth redirection indication information from the base station of the second cell to the base station of the first cell, where the fourth redirection indication information includes: Triple redirection instructions.

33. The user equipment according to claim 32, characterized in that the second information also includes one or a combination of the following:

34. The user equipment according to claim 27, characterized in that the recording unit records relevant information of the redirection event, specifically including:

The reporting unit is specifically used for:

After the third cell enters the connected state, the fifth redirection indication information including the third information and the current interval time from the RRC connection establishment failure is sent to the third cell, and the base station of the third cell sends the information including The fifth redirection indication information and the sixth redirection indication information of the third cell identity are sent by the base station of the second cell including the sixth redirection indication information to the base station of the first cell after determining that the UE is redirected to the wrong frequency point. and/or the seventh redirection indication information that redirects the UE to the wrong frequency point.

35. The user equipment according to claim 34, characterized in that the third information further includes Including one or a combination of the following:

36. The method of claim 34, wherein the recording unit is further configured to: add the third information to a wireless link failure report variable.

37. The user equipment according to claim 27, wherein the recording unit receives the redirection command message sent by the base station of the first cell, specifically including:

After switching from the third cell to the first cell, a redirection command message sent by the base station of the first cell is received.

38. The user equipment according to claim 37, characterized in that the recording unit records relevant information of the redirection event, specifically including:

After redirecting to the second cell according to the redirection command message, fourth information is recorded, and the fourth information includes: the first cell identifier;

The reporting unit is specifically used for:

The eighth redirection indication information including the fourth information is sent to the second cell, and the base station of the second cell sends the ninth redirection indication information to the base station of the first cell, where the ninth redirection indication information includes: eighth redirection indication information; Orientation indication information, second cell identification, and whether the UE has been redirected successfully and whether the UE has been redirected to the wrong frequency point; and after the base station of the first cell determines that the UE is performing Ping-Pong handover, it sends Ping-Pong to the base station of the third cell. The handover instruction information includes: ninth redirection instruction information.

39. The user equipment according to claim 38, characterized in that the fourth information also includes one or a combination of the following:

The ping-pong handover indication information also includes one or a combination of the following:

The third cell identification, the handover reason and the first cell identification.

40. The user equipment according to claim 37, wherein the redirection command message includes historical information of handover by the UE;

The recording unit records relevant information of the redirection event, specifically including:

After redirecting to the second cell according to the redirection command message, fifth information is recorded, and the fifth information includes: the first cell identifier and the history information of the UE handover;

The reporting unit is specifically used for:

Send the tenth redirection indication information including the fifth information to the base station of the second cell. After the base station of the second cell determines that the UE is performing a Ping-Pong handover based on the historical information of the UE handover, it sends a Ping-Pong handover to the base station of the third cell. Instruction information, the ping-pong handover instruction information includes: tenth redirection instruction information.

41. The user equipment according to claim 40, characterized in that the fifth information also includes one or a combination of the following:

42. The user equipment according to claim 40, characterized in that the historical information of the UE handover specifically includes:

The identity of the third cell and the identity of the first cell.

43. The user equipment according to claim 42, characterized in that the historical information of the UE switching also includes one or a combination of the following:

44. The user equipment according to claim 27, characterized in that the recording unit records repeated Information related to targeted events, including:

recording sixth information including the first cell identifier;

The reporting unit is specifically used for:

When sending an RRC connection establishment request or an RRC establishment completion message to the base station of the second cell, the eleventh redirection indication information including the sixth information is carried, and the base station of the second cell redirects the eleventh redirection. The indication information is sent to the core network, and after the core network determines that the UE performs Ping-Pong handover based on the handover history information of the UE, it sends a Ping-Pong handover instruction to the base station of the third cell.

45. The user equipment according to any one of claims 28 to 44, characterized in that the second cell is:

After receiving the redirection command message, perform cell selection and then select the cell; or

After receiving the redirection command message, the cell initiates RRC connection establishment.

46. The user equipment according to claim 27, wherein the redirection command message includes:

47. A base station, characterized by including:

A sending unit, used to send a redirection command message to the UE;

The receiving unit is configured to receive redirection indication information sent by the base station where the UE camps after redirection, where the redirection indication information includes information related to redirection events recorded and reported by the UE to the base station where the UE camps after redirection.

48. The base station of claim 47, wherein the sending unit is further configured to: before sending the redirection command message to the UE, determine that the UE switches from the third cell to the first zone; the receiving unit is further configured to: Used for:

After receiving the redirection indication information sent by the base station where the UE camped after redirection, it is determined that the UE will be redirected within the set time of switching to the first cell, and sends the redirection indication information including the redirection indication information to the base station of the third cell. Ping-pong switching indication information.

49. A base station, characterized by including: The information receiving unit is configured to receive the redirection indication information sent by the UE after recording the relevant information of the redirection event after receiving the redirection command message sent by the base station of the first cell;

A generating unit, configured to form new redirection instruction information including the redirection instruction information according to the redirection instruction information;

A forwarding unit, configured to send the new redirection indication information to the base station of the first cell.

50. A base station, characterized by including:

The indication information receiving unit is configured to receive the redirection indication information sent by the UE after recording the relevant information of the redirection event after receiving the redirection command message sent by the base station of the first cell;

The determining unit is configured to determine, based on the historical information of UE switching included in the redirection indication information, that a ping-pong handover occurs in the UE, and then send the ping-pong handover indication information to the third cell where the UE camped before the handover.

51. A base station, characterized by including:

The message receiving unit is used to receive the radio link control RRC connection establishment request or RRC establishment completion message sent by the UE after receiving the redirection command message sent by the base station of the first cell; the requesting unit is used to send services to the core network request message, and receive the historical information about the handover of the UE sent by the core network;

An indication information sending unit is configured to determine, based on the historical information of the UE's handover, that the UE has performed a Ping-Pong handover, and then send the Ping-Pong handover indication information to the third cell where the UE camped before the handover.

52. A base station, characterized by including:

The RRC message receiving unit is configured to receive the radio link control RRC connection establishment request or RRC establishment completion message sent by the UE after receiving the redirection command message sent by the base station of the first cell. The RRC connection establishment request or RRC establishment completion message is The message carries eleventh redirection indication information including the first cell identity;

A service request unit, configured to send a service request message to the core network. The service request message carries the eleventh redirection indication information. After the core network determines that the UE performs a ping-pong handover, it will move to the third cell where the UE camped before the handover. Send ping-pong handover instruction information.