WO2013139242A1 - Information recording method, information obtaining method, device and system - Google Patents

Abstract

The present invention provides an information recording method, an information obtaining method, a device and a system. The method comprises: a UE receiving a redirection instruction or cell change order sent by a first network node, the redirection instruction or cell change order being used for instructing the UE to establish a communication connection with a second network node; the UE executing the redirection or cell change order, and recording redirection information or cell change information; and the UE reporting the redirection information or cell change information. According to the information recording method, the information obtaining method, the device and the system provided by the present invention, redirection and CCO information can be recorded in the redirection or CCO.

Description

 Information i method, information acquisition method, device and system

This application claims priority to Chinese Patent Application No. 201210073115.4, entitled "Information Recording Method, Information Acquisition Method, Equipment and System", filed on March 19, 2012, the entire contents of which are incorporated by reference. In this application. TECHNICAL FIELD The present invention relates to communication control technologies, and in particular, to an information recording method, an information acquisition method, a device, and a system, and belongs to the field of communication technologies.

The mobility of the user equipment (UE) refers to cell reselection, handover, and cell change between different network nodes according to different Radio Resource Control (RRC) states of the user equipment. Cell change order ) or redirection, where cell reselection applies to UEs in the idle state, and handover, cell change and redirection are applicable to UEs in the connected state. Redirection, cell reselection, and cell change do not require a network-side negotiation process, which is determined autonomously by the source network, and the handover requires that the target network acknowledges that the UE handover can be received, and the source network notifies the UE to perform the handover.

 The UE does not perform recording or reporting operations under the cell reselection, redirection, or cell change order (CCO), but only fails to perform Radio Link Failure (RLF) and inter-system handover failure in the UE. The record is only started under (HOF).

 Since the typical application of relocation is used in Circuit Switched Fall Back (CSFB), operators currently have statistical delay and success rate requirements for CSFB.

 For the CCO, if the network side cannot perform related information about redirection or cell change according to the UE, the network system cannot be optimized and/or the performance of the current network system can be counted.

Summary of the invention The embodiment of the invention provides an information recording method, an information acquisition method, a device and a system for implementing network system optimization.

 In one aspect, an information recording method is provided, including:

 Receiving, by the UE, a redirection indication or a cell change command sent by the first network node, where the redirection indication or the cell change command is used to indicate that the UE establishes a communication connection with the second network node; and the UE performs a redirection or cell change command. And recording the redirect information or the cell change information;

 The UE reports the redirect information or cell change information.

 In one aspect, a UE is provided, including:

 a receiving module, configured to receive a redirection indication or a cell change command sent by the first network node, where the redirection indication or the cell change command is used to indicate that a communication connection is established with the second network node;

 a recording module, configured to perform a redirection indication or a cell change command received by the receiving module, and record redirection information or cell change information;

 The reporting module is configured to report redirection information or cell change information recorded by the recording module. In one aspect, an information acquisition method is provided, including:

 The upper node of the node in the network node sends a redirection indication or a cell change command to the UE, where the redirection indication or the cell change command is used to instruct the UE to establish a communication connection with the one node, so that the UE performs redirection. Or a cell change command, and record the redirect information or the cell change information;

 If the UE is redirected or the cell is changed to the one node, the one node receives the redirection information or cell change information reported by the UE.

 In one aspect, a network node set is provided, including at least one node for performing the information acquisition method provided by the embodiment of the present invention and a superior node of the one node.

 In one aspect, a network node is provided, including:

 The information receiving module is configured to receive the redirection information or the cell change information reported by the UE, where the redirection information or the cell change information is sent by the UE according to a redirection indication or a cell change command sent by a superordinate node of the network node. When the redirect or cell change command is executed, the redirected information or the cell change information is recorded.

In one aspect, a communication system is provided, including the network node set provided by the embodiment of the present invention and the UE provided by the embodiment of the present invention. The information recording method, the information acquisition method, the device, and the system according to the embodiment of the present invention, when the UE performs the redirection or the cell change, records the redirection information or the cell change information, and reports the recorded redirection to the network side. The information or the cell change information solves the problem that the network side cannot learn the information about the UE performing the redirection or the cell change, and cannot optimize the network system according to the information about the UE performing the redirection or the cell change, and/or the performance of the current network system. The technical problem of statistics is performed, so that the network side can optimize the network according to the real situation that the UE performs redirection or CCO when the UE performs redirection or CCO success or failure, and/or successfully performs redirection or CCO in the UE. Statistics on the performance of the current network system, such as UE redirection delay statistics.

BRIEF DESCRIPTION OF THE DRAWINGS In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings to be used in the embodiments or the description of the prior art will be briefly described below, and obviously, in the following description The drawings are only some of the embodiments of the present invention, and other drawings may be obtained from those skilled in the art without departing from the drawings.

 1 is a schematic flow chart of an information recording method according to an embodiment of the present invention;

 2 is a schematic diagram of a system for implementing an information recording method according to an embodiment of the present invention; FIG. 3 is a first example flowchart of a UE performing information recording and reporting;

 4 is a second exemplary flowchart of performing information recording and reporting by a UE;

 FIG. 5 is a third exemplary flowchart of performing information recording and reporting by a UE;

 6 is a flowchart of a fourth example of the UE performing information recording and reporting;

 7 is a flowchart of a fifth example of the UE performing information recording and reporting;

 8 is a schematic flow chart of an example of recording information on a UE;

 FIG. 9 is a schematic structural diagram of a UE according to an embodiment of the present invention;

 FIG. 10 is a schematic flowchart diagram of an information acquiring method according to an embodiment of the present invention;

 FIG. 11 is a schematic structural diagram of a network node according to an embodiment of the present invention.

detailed description The technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without departing from the inventive scope are the scope of the present invention.

 The source cell initiates a Radio Resource Control (RRC) connection release message (RRC connection release) or an RRC connection reject message (RRC connection reject), and both of the messages may include redirection information in the redirection information. After the target cell or the target frequency point is specified, after receiving the redirection information, the UE releases the RRC connection, returns to the idle state, and searches for and attempts to camp on the target cell/target frequency. If a suitable camping cell is found, An RRC connection request message is initiated on the target cell/target frequency. If the camped cell is not found, the RRC connection request message is re-initiated at the frequency point of the target cell or reselected to the source cell.

 The source cell initiates a CCO process, and the target cell is specified in the CCO command. If the UE cannot successfully establish an RRC connection with the target cell within the specified timer, it returns to the source cell to send a CCO failure command.

 The technical problem to be solved by the present invention is that the network side cannot learn related information of the UE performing redirection or cell change, optimizes the network according to the real situation of the UE performing redirection or CCO, and/or performs statistics on the performance of the current network system.

 In order to solve the above technical problems, the present invention provides the following technical solutions.

 Embodiments of the present invention are exemplified by redirection and CCO occurring in different modes, but can also be used in the same wireless system.

 For example, the target frequency of the redirect command /CCO and the source cell that initiates the redirect signaling belong to UMTS or belong to LTE, or both belong to GERAN, CDMA, and so on.

 Embodiment 1

 FIG. 1 is a schematic flowchart diagram of an information recording method according to Embodiment 1 of the present invention. As shown in FIG. 1, the information recording method includes the following steps:

 The UE receives the redirection indication or the cell change command sent by the first network node, where the redirection indication or the cell change command is used to indicate that the UE establishes a communication connection with the second network node.

102. The UE performs redirection or cell change, and records redirection information or cell change. Information

 103. The UE reports the redirect information or cell change information.

 The first network node and the second network node may be different radio access network nodes of different radio access systems, and may be different radio access network nodes of the same radio access system, and may be the same radio access system. Different frequency points can also be different cells of the same wireless system. If the first network node and the second network node are different radio access network nodes of different line access systems, the redirection info may be included in the RRC connection reject or radio resource control. Connect to the RRC connection release message. If the first network node and the second network node are different radio access network nodes of the same radio access system or different cells of the same radio system, redirection information (frequency point information or cell scrambling code of the second network node) The information) may be included in an RRC reconfiguration message (eg, radio bearer reconfiguration, transport channel reconfiguration, physical channel reconfiguration, etc.).

 In the information recording method of this embodiment, a description is made by taking an example of a different radio access network node in which the first network node and the second network node are different radio access systems. That is, after the UE receives the redirection indication or the Cell change order command from the cell of the first radio access technology RAT 1, the UE is required to enter the RAT 2 to establish a connection, and the UE performs redirection or performs cell execution on the RAT 1 The change command succeeds, the information record of the RRC connection is successfully established with the RAT 2, or the redirection or the cell change command is performed from the RAT 1 to the information record of the RAT 2 failure. The RATs mentioned here may be EUTRAN, CDMA2000, GERAN, and various standard networks such as WiMAX, WiFi, WCDMA, and TD-CDMA.

 Hereinafter, RAT 1 is referred to as a source RAT, and RAT 2 is referred to as a target RAT.

 Specifically, Fig. 2 is a schematic diagram of a system for implementing the information recording method of the first embodiment of the present invention. As shown in FIG. 2, the first cell Cell 1 and the second cell Cell 2 are cells of a Universal Mobile Telecommunications System (UMTS) having a frequency of fl, a third cell Cell 3, a fourth cell Cell 4, and a The five-cell Cell 5 is a cell of a Long Term Evolution (LTE) system with a frequency of £2, and the sixth cell Cell 6 is a Global System for Mobile Communications (GSM)/Enhanced Data Rate GSM Evolution Technology (EDGE) with a frequency of f4. The cell of the radio access network (GERAN), and the seventh cell Cell 7 is a cell of GERAN with a frequency of β. The UE resides in the fourth cell cell 4.

The following is an example of the scenario where the network side redirects the UE when the UE initiates the CSFB service. The description of the line is only used as an example, and is not limited to the technical solution of the embodiment, for example.

The redirection of the PS service or the cell change command and the like are applicable to this embodiment.

 The fourth cell cell 4 of the LTE indicates, in the inter-RAT redirection indication sent to the UE, that the frequency of the UE redirection is f4, and the system information of a certain cell (for example, the first cell cell 1) in the target RAT. Provided to the UE as auxiliary information. The UE responds to the inter-RAT redirection indication, performs a redirection process, and records redirection related information according to a preset rule. The redirection indication is included, for example, in a Radio Resource Control (RRC) RRC connection release (RRC connection release) or an RRC connection reject message (RRC connection reject).

 By recording the redirection related information and providing the record information to the network side, the UE can optimize the inter-RAT interoperation of the network and calculate the delay and success rate of the UE CSFB.

 Specifically, for example, the auxiliary information provided by the network side is system information of the first cell cell 1. When the UE performs redirection, the redirect to the first cell cell 1 fails and is redirected to the second cell cell 2 (the third network node, the third network node and the first network node and the second network node may be different wireless The different radio access network nodes of the access system may be different radio access network nodes of the same radio access system, may be different frequency points of the same radio access system, or may be different cells of the same radio system. Here, the third network node is an example of a different radio access network node different from the first network node and the second network node, that is, the system information of the first cell cell 1 provided by the network side. Redirection for the UE did not help. At this time, the UE records the situation and provides the information to the network side, and the network side can analyze and know that the provided auxiliary information is not suitable. The UE should be provided with the system information of the second cell cell 2 to speed up the UE access. Moreover, if the UE records the time from the start of the CSFB service to the successful completion of the connection of the CS domain, the network side can conveniently count the delay of the UE CSFB.

Wherein, if it is redirection, the delay may also be from the receipt of a Radio Resource Control (RRC) release message (RRC release) / RRC connection reject indicating the connection release/RRC connection reject, to the UE success. The RRC connection is established with cell2, that is, the time when the UE sends the RRC connection setup complete message. If the cell is replaced, the delay may be that the RRC connection is established between the UE and the second cell 2 after the UE receives the "mobility from EUTRA Command" command, which is the time when the UE sends the RRC connection setup complete message. If it is a CCO, the UE may receive a CCO command from the source cell to start recording until the UE successfully establishes an RRC connection with the target cell/target frequency in the CCO command; or until the UE determines that the CCO fails, sending the CCO in the source cell. Failure during this time.

 If the recording is in the CCO scenario, the UE may perform the foregoing in the target cell or the cell in the target frequency after the cell in the target cell or the target frequency in the CCO command successfully establishes an RRC connection or successfully establishes an RRC connection. Record information on the network side; or

 If the CCO fails, the UE cannot successfully establish an RRC connection with the cell of the target cell or the target frequency, and the UE reports the information to the originating CCO in a CCO failure command or other message after returning to the source cell or the source system node. Source cell/source system of the process.

 According to the information recording method of the foregoing embodiment, when the UE performs redirection or cell change, the redirection information or the cell change information is recorded, so as to optimize the network and conveniently calculate the delay and/or success rate of the UE CSFB.

 Embodiment 2

 On the basis of the foregoing embodiment, the recording redirection information or the cell change information specifically includes:

 The redirection indication or the cell change command is parsed. If the redirection indication or the cell change command carries indication information for instructing the UE to perform a recording operation, the UE records redirection information or cell change information.

 Specifically, the UE needs to record the redirection or cell change information based on the indication on the network side. The network side carries indication information for instructing the UE to perform redirection or CCO recording in a redirection indication, a cell change command, or other RRC message (for example, an RRC reconfiguration message or UE control information).

 More specifically, the source RAT network performs one or more of the following settings on the UE, for example, by adding indication information in an RRC reconfiguration message, an RRC connection release message, or a CCO: setting whether the UE is in a redirect or CCO scenario Initiating a record; (the redirection may be an RRC connection release or an RRC connection reject or an RRC reconfiguration message) setting a valid duration of the record, for example, giving a timer;

 The reporting range PLMN information is set. If the PLMN information is not given, the default is that the UE reports the record only when the source RAT and the PLMN of the target RAT are the same or belong to the same.

Setting specific information content recorded by the UE; the specific content may be one or more of the following contents; After receiving the indication from the network side, the UE may record one or more of the following information during the process of performing the redirection or the cell change: (may be determined according to the control of the network, or have a prior negotiation with the network)

 After receiving the command, the UE records one or more of the following information:

 (1) latitude and longitude geographic location information ( location information );

 Specifically, the latitude and longitude geographic location information is location information of the UE when the source RAT network indicates that the UE is redirected or the cell is changed (that is, when the UE receives the network indication message); and/or, the UE finally successfully establishes in the target RAT network. The location information of the UE when the connection is successful.

 (2) the signal quality of the source RAT cell, the target RAT cell, and/or the cell that ultimately successfully establishes the RRC connection;

 Specifically, for example, reference signal receiving power (RSRP), reference signal receiving quality (RSRQ), energy/band limit per chip on the code channel after the spreading end is expanded. The power spectral density (Ec/No) of the white noise, and the received signal code power (RSCP), etc., are used to describe the signal quality of the source RAT cell and the target RAT cell, where the source RAT cell is the UE. The cell to which the redirection indication or the cell change indication is located, the target RAT cell is a cell after the UE successfully performs redirection or cell change.

 If the UE successfully establishes an RRC connection in the network redirection or the target cell of the CCO, the above target RAT cell and the finally successfully established RRC connected cell may be the same cell. If the UE receives the cell indicating that the target cell is cell2/f2 and the RRC connection is successfully established, the target RAT cell and the finally successfully established RRC connected cell may be different cells. (3) Source RAT cell information:

 Specifically, the information of the source RAT cell to be recorded includes, for example, one or more of the following information:

 The source RAT, which is, for example, a global cell identifier (global cell)

ID) and / or cell primary scrambling code (PSC);

 The frequency layer where the source cell is located, that is, the frequency at which the UE receives the network side redirection or cell replacement indication;

Source RAT type, such as LTE Time Division Duplexing (TDD), LTE Frequency Division Duplexing (FDD), Worldwide Interoperability for Microwave Access (WiMAx), Code Division Multiple Access (Code Division Multiple Access, CDMA) 2000, UMTS, etc.; Public Land Mobile Network (PLMN) information of the source RAT cell;

 Tracking area of source cell / location area for data service / location area for voice service (TA/RAC/LAC) and other information;

 In the cell that the UE accesses the target cell or successfully establishes the RRC connection establishment, the information of the source RAT cell is recorded and reported to the target network for optimization or statistics on the network side.

 (4) Time information

 Specifically, the time information includes timestamp information and time period information: in the redirection information, the timestamp information is a time point at which the UE starts performing redirection; and the time segment information is, for example, receiving an RRC connection release message indicating that the connection is released (RRC The connection release is started, and the RRC connection is established between the UE and the target cell 2, which is the time when the UE sends the RRC connection setup complete message;

 In the cell change information, the timestamp information is a time point at which the UE starts to perform the cell change; the time period information includes delay information from the time when the UE receives the cell change command, and the UE establishes an RRC connection with the changed cell.

 (5) The tag information of the system information of the target cell Cell l;

 (6) When the target RAT/target cell is accessed, or when the non-target RAT/non-target cell successfully establishes an RRC connection, the reason for establishing the RRC connection from the source RAT to the current cell may be recorded and uploaded;

 For example, CCO success, CSFB, CSFB high priority, normal inter-RAT cell reselection, congestion, load balancing (load Balancing TAU required) And the release cause value carried in the RRC connection release message sent by the source RAT network.

 (7) In the CCO scenario, when the target RAT/target cell access fails, when the CCO fails to be sent to the source cell or the source system, the cause of the connection establishment failure in the target cell may be reported, which may be one of the following: Or multiple combinations;

For example: If the timer expires (for CCO from UMTS, it can be T309 expired), the RRC connection cannot be established successfully, the target cell congestion is congested; the RACH access fails; the RRC connection establishment fails in the target cell (for example, it is not received) RRC connection setu or RRC connection release or RRC connection reject is received in the target cell; AC information is determined to be barred in the system broadcast message of the target cell; the target cell status is barred; RRC connection is sent in the target cell Request exceeds the maximum number of retransmissions, and so on.

 (8) Cell reselection tracking record;

 Specifically, the cell reselection tracking record includes, for example, the following information:

 Description of the scene, for example, the scene is "LTE Redirect to UMTS" (this scene is only an example, not a limitation of the applicable scenario):

 It is assumed that the UE initially in the connected state receives an RRC connection release indication or a cell change indication from the LTE cell 1 to the UMTS.

 The UE first releases the connection from the connection state in the LTE to enter the idle state, and then performs cell selection to the UMTS, and initiates an RRC connection establishment request in any cell suitable for camping that satisfies the S criterion;

After the UE initiates the first RRC connection establishment request in the UMTS, it waits for the network side to reply to the RRC connection setup message (RRC connection setup);

 The special scenario description, the special scenario is, for example, any one of the following six scenarios: Special scenario 1: If the UE waits for the RRC connection setu, if cell reselection occurs or T300 (Transmission of RRC CONNECTION REQUEST in case of connection establishment for reasons) Other than MBMS reception ) or T318 ( Transmission of RRC CONNECTION REQUEST in case of connection establishment for MBMS reception ) expires;

 Special scenario 2: Cell reselection occurs before the UE submits the RRC connection setup complete message to the UE under layer;

 Special scenario 3: After the RRC connection setu message received by the UE, the physical channel fails to be established with the current cell according to the configuration parameter in the RRC connection setu message;

 Special scenario 4: In the RRC connection setu message received by the UE, the specified UE enters

CELL FACH state and the network specifies the UE entry frequency (frequency) A. The UE does not find a suitable camped cell on frequency A, but finds a suitable cell on frequency B. Special scenario 5: RRC connection setu message received by the UE The UE is designated to enter the CELL_FACH state and the network designates the UE to enter the target cell (primary scrambling code), but the UE selects another cell;

Special scenario 6: In the RRC connection setu message received by the UE, the specified UE enters The CELL_FACH state, and the Cell Radio Network Temporary Identifier (C-RNTI) and the HSDPA System Radio Network Temporary Identity (H-RNTI) allocated by the network to the UE are empty;

 When any of the special scenarios described above occur, the UE may record the above special scenario and perform the following judgments:

 The UE checks whether the internal counter V300 (V300 records the number of RRC connection requests that the UE has sent) is less than N300 (the maximum number of times the network determines the number of RRC connection requests). If the V300 is smaller than N300 and the cell reselection occurs, the UE The RRC connection request will be resent in the new cell, and V300 will be added to restart T300. Otherwise, it is considered that the RRC establishment process fails and enters the Idle state.

 In addition, the UE may also record one or more combinations of the following information when any of the special scenarios described above occur:

 Every time V300 force. 1, the reason for resending the RRC connection request;

 If the UE successfully establishes an RRC connection from the source RAT cell to the target RAT cell (i.e., transmits the RRC connection setup complete to the bottom layer), assuming that the UE has previously performed cell reselection, the cell reselection history, i.e., the path, may be recorded.

 In addition to the case where the UE performs the recording operation according to the network indication in the embodiment, the UE may also automatically start the recording operation and record the inter-RAT redirection when performing the inter-RAT redirection or the inter-RAT cell change. Information or inter-RAT cell change information. Specifically, the UE may start the recording process according to the indication message that the network side indicates that the UE performs the RRC relocation or the cell replacement, for example, when the RRC connection release message of the load balancing of the CSFB or the TAU is received. The process of recording.

 Embodiment 3

 Based on any of the above embodiments,

 The reporting, by the UE, the redirection information or the cell change information includes:

 Transmitting or redirecting the UE to the second network node, and reporting the redirect information or the cell change information to the second network node; or

The UE does not successfully redirect or change the cell to the second network node, and sends the redirection information or cell change information to the first network node or the third network node. In addition, after the UE fails to change the cell to the second network node, the method further includes: Sending a cell change failure message to the first network node or the third network node. The UE is not successfully redirected or the cell is changed to the second network node, where the UE performs cell selection or cell reselection from the first network node to the cell under the second network node, in the second network. A cell that meets the cell camping condition is not found in the node, and the UE performs cell selection or cell reselection to enter the first network node or the cell in the third network node to find a cell that meets the cell camping condition; or the UE Connect to the second network node when the threshold is exceeded.

 Specifically, FIG. 3 is a first example flowchart of the UE performing information recording and reporting. As shown in FIG. 3, the first network node sends a redirection indication/cell change command targeting the second network node to the UE; the UE records redirection information or cell change information, and successfully performs redirection to the second network node/ The cell changes; the UE sends an RRC connection establishment request to the second network node, and reports the recorded redirection information or cell change information. If the first network node and the second network node are different radio access network nodes of the same radio access system or different cells of the same radio system, after the redirect/cell change to the second network node is successfully performed The RRC reconfiguration response message sent by the UE to the second network node, the redirect information or the cell change information recorded.

 FIG. 4 is a second exemplary flowchart of the UE performing information recording and reporting. As shown in FIG. 4, the first network node sends a redirection indication targeting the second network node to the UE; the UE records the redirection information, performs the redirection to the second network node failure, and the cell reselects to the third network node. The UE sends an RRC setup connection request or an RRC reconfiguration response message to the third network node, and reports the recorded redirection information; the third network node sends the redirection information to the first network node.

 FIG. 5 is a third exemplary flowchart of the UE performing information recording and reporting. As shown in FIG. 5, the first network node sends a redirection indication targeting the second network node to the UE; the UE records the redirection information, performs the redirection to the second network node failure, and the cell reselection returns to the first network. The UE sends an RRC setup connection request or an RRC reconfiguration response message to the first network node, and reports the recorded redirection information.

FIG. 6 is a fourth exemplary flowchart of the UE performing information recording and reporting. As shown in FIG. 6, the first network node sends a cell change command targeting the second network node to the UE; the UE records the cell change information, fails to perform the cell change to the second network node, and the cell reselection returns to the first network node. The UE notifies the first network node that the cell change fails, and the cell change information recorded on the top. Figure Ί is a fifth example flow chart for the UE to perform information recording and reporting. As shown in FIG. 7, the first network node sends a cell change command targeting the second network node to the UE; the UE records the cell change information, performs the cell change to the second network node failure, and the cell reselects to the third network node. The UE notifies the third network node that the cell change fails, and records the changed cell information to the third network node; the third network node sends the cell change information to the first network node.

 In the above example, the UE may report the record information to the network side (ie, the first network node, the second network node, or the third network node) in any of the following manners:

 Manner 1: After the UE performs the redirection or the cell change is successful, the recorded redirection information or the cell change information is automatically reported, that is, after the UE successfully links to the target cell, the record information is directly reported to the target network.

 Specifically, the UE carries the recorded redirection information or cell change information in an RRC connection establishment request, an RRC connection setup complete message, or other RRC message.

 Manner 2: After the UE performs the redirection or the cell change is successful, if the report of the report record sent by the network side is received, the recorded redirection information or cell change information is reported.

 FIG. 8 is a schematic flowchart of an example of recording information on a UE. As shown in FIG. 8, after the UE successfully accesses the target network or the access target network fails to return to a certain network, the UE does not directly report the record information, but first indicates that the network record information is valid or indicates that the current record has available records. The information is reported, and after the message of the record information is reported by the UE that has received the successful access to the target network or the network that failed to return, the record information is reported. For example, when the UE accesses the target RAT cell or the CCO fails to return to the source cell, it carries an indication information indicating whether the UE has redirection optimization information or a CCO failure record, and is controlled by the radio network receiving the indication. The Radio Network Controller (RNC) or the eNB determines and determines whether the UE is required to report the recorded information.

 Manner 3: The UE reports the recorded redirection information or cell change information if it determines that the preset report record condition is met.

Specifically, the preset report recording condition can be arbitrarily defined as needed. For example, it may be defined that the UE reports the indication only when the target RAT cell selected by the UE is not in the cell list specified by the source RAT network or is not in the frequency list specified by the source RAT network, or reports the specific record used for network optimization. content. In addition, for example, in a network sharing scenario, the UE determines, according to the PLMN information of the target RAT cell, that the source RAT cell belongs to the target cell. For the same PLMN, the indication or the record specifically used for network optimization is reported.

 Alternatively, the UE, when receiving the CCO command and failing, defines the UE to report any combination of information or multiple types of information mentioned in the second embodiment in the CCO failure command, for example, reporting the CCO failure reason in the CCO failure command.

 Further, the UE performs the redirection or the cell change to the second network node, and the redirection information or the cell change information is sent to the first network node to specifically include:

 After performing the redirection failure, the UE carries the recorded redirection information in an RRC establishment connection request, an RRC connection setup complete message, or other RRC message sent to the first network node; or

 After the UE performs the cell change failure, the cell change failure message or other RRC message sent to the first network node includes the recorded cell change information; or

 After the UE performs the redirection or the cell change fails, if the report request sent by the first network node is received, the recorded redirection information or cell change information is reported.

 According to the information recording method of the present embodiment, a flexible recording information reporting mechanism is provided. Embodiment 4

 On the basis of the foregoing Embodiment 1, after the performing the inter-RAT redirection or the inter-RAT cell change, the UE further includes:

 If the UE fails to perform the redirection, the reason for the redirection is reported;

 If the cell fails to perform the cell change, the cell change reason is reported, the cell change failure message is sent in the source RAT cell, and the cell RAT fails to be reconstructed.

 In this embodiment, two cases of redirection failure and cell replacement failure are respectively described. First, the redirect failed

The failure of the redirection is defined, for example, as any of the following situations: The auxiliary information provided by the network is inconsistent with the information that the UE last connected successfully, for example, the source RAT network instructs the UE to connect on frequency 1, but the UE does not connect on frequency 1. Successfully, finally connected to frequency 2; or, the network provides system information of the first cell cell 1, but the UE is finally connected to the second cell cell 2; or the UE is connected to the network after the time T, wherein the time T is for example The network is specified or preset in the UE. Or, further, when the first network node initiates redirection to the target cell of the second network node, the redirection information carries a system broadcast message of the target cell of the second network node; and the UE uses the second network obtained from the redirection information. Node's system broadcast message attempt The access target cell fails; when the UE initiates the access from the third network node or the first network node, the UE notifies the third network node or the first network node that the first network node initiates the redirect to the second network node fails. . Further, the specific failure reason may be carried, for example, the failure to access the second network node by using the system broadcast message of the target cell obtained from the first network node may be performed.

 Further, after the UE fails to perform the redirection, the UE may further extend the radio link failure (RLF) report, and identify the reason for the redirection in the RLF report. For example, if the UE initiates a redirection due to CSFB, but the last redirection fails, the UE identifies in the RLF report that the reason for this redirection is CSFB.

 Second, the community replacement (CCO) failed

 When the UE is in the CCO command of the source RAT network, the cell replacement process is performed, where the CCO carries the frequency of the target RAT or the information of the cell. If the UE cannot perform connection establishment on the target RAT/cell indicated by the source RAT network before T309 expires, it is judged that the CCO fails, and the CCO failure message is sent back to the source RAT.

 The UE records the CCO process,

 (1) The timer (which may be T309 for CCO from UMTS) does not successfully establish an RRC connection with the target cell/target frequency/target RAT before timeout;

 (2) The random access procedure fails in the target cell/target frequency/target RAT, for example due to congestion of the Random Access Channel (RACH);

 (3) The RRC connection setup fails in the target cell, for example, the target cell does not receive the RRC connection setu or the MAC conflict is resolved.

 (4) In the target cell/target frequency/target RAT access phase, the random number generated by the UE itself is smaller than the "ac-Barring Factor" parameter, so that the UE considers the target cell as a forbidden cell;

(5) The access control indication in the system broadcast message of the target cell/target frequency/target RAT is "prohibited" or "reserved";

 (6) receiving an RRC Connection Reject message at the target cell/target frequency/target RAT;

 (7) receiving an RRC Connection Rerelease message (RRC Connection Rerelease) at the target cell/target frequency/target RAT;

(8) a release cause obtained by the target cell/target frequency/target RAT receiving the RRC connection release message and obtained from the RRC connection release message, for example, load balancing of TAU, CSFB or CSFB high priority, etc.; (9) The non-access (NAS) layer of the UE indicates to the access (AS) layer, and the RRC connection establishment process is abandoned;

 (10) a cell ID with which cell the UE attempts to establish an RRC connection;

 (11) In the RRC connection establishment process of the target RAT or the target cell, the timer that expires or stops causes the RRC connection establishment to fail, and the timer is, for example, T300, Τ302, Τ303, or 305.

 After the cell fails to be replaced, the UE sends a CCO failure message on the source RAT network, and indicates in the CCO failure message that the reason for the reconstruction is one or a combination of the above reasons.

 Further, the UE may also carry only the "records that can be used for reporting" in the CCO failure command, and report the information under the network control.

 Embodiment 5

 FIG. 9 is a schematic structural diagram of a UE according to Embodiment 5 of the present invention. As shown in FIG. 9, the UE includes: a receiving module 91, configured to receive a redirection indication or a cell change command sent by the first network node, where the redirection indication or the cell change command is used to indicate the UE and the second network node. Establish a communication connection;

 The recording module 92 is configured to perform a redirection or a cell change command, and record the redirection information or the cell change information;

 The reporting module 93 is connected to the execution and recording module, and is configured to report the redirect information or the cell change information.

 The process of the information recording performed by the UE in this embodiment is the same as the information recording method in the foregoing embodiment, and therefore is not described herein again.

 The UE according to this embodiment records inter-RAT redirection information or cell change information when performing redirection or cell change, thereby implementing network optimization, and/or conveniently counting UE CSFB delay and success rate.

 Further, the uplink module is further configured to redirect or change the cell to the second network node, and report the redirect information or the cell change information to the second network node; or perform a redirect or a cell change to the The second network node fails to send the redirection information or the cell change information to the first network node or the third network node.

The first network node, the second network node, and the third network node are different radio access network nodes of different radio access systems; or different radio accesses of the same radio access system Network node; or different frequency points of the same wireless access system; or It is a different cell of the same wireless system.

 Further, the UE further includes:

 a connection module, configured to re-establish an RRC connection with the first network node if the recording module is not successfully redirected or the cell is changed to the second network node;

 The reporting module is specifically configured to report the redirection information or the cell change information to the first network node after the connection module re-establishes an RRC connection with the first network node; or

 The connection module is configured to establish an RRC connection with the third network node if the recording module is not successfully redirected or the cell is changed to the second network node;

 The reporting module is specifically configured to report the redirection information or the cell change information to the third network node after the connection module re-establishes an RRC connection with the third network node.

 Further, the UE further includes:

 And a sending module, configured to send the cell change failure message to the first network node or the third network node, if the recording module fails to change the cell to the second network node.

 Further, the receiving module is further configured to acquire a signaling indication message sent by the first network node, where the signaling indication message is used to indicate that the UE indicates the location when receiving the redirect indication or the cell change command. The recording module records the redirection information or the cell change information.

 Further, the recording module is further configured to receive, by the first network node, in a redirection indication, a cell change command, or another RRC message, to indicate, when the UE receives the redirection indication or the cell change command, , indication information for recording redirection information or cell change information.

 Further, the receiving module is specifically configured to receive a redirection indication carrying the indication message or the cell change command;

 The UE further includes:

 a parsing module, configured to acquire the signaling indication message by parsing the redirection indication or the cell change command received by the receiving module; or

 The receiving module is further configured to receive an RRC message that is sent by the first network node and that carries the signaling indication message;

 The parsing module is configured to obtain the signaling indication message by parsing the RRC message received by the receiving module.

Further, the redirection indication received by the receiving module is included in the radio resource control connection. The drop message or the radio resource control connection release message or the RRC reconfiguration message.

 Further, the reporting module is specifically configured to: after the recording module successfully performs the redirection or the cell change, initiate an RRC connection establishment request or an RRC connection setup complete message or an RRC reconfiguration response to the second network node. a message, and carrying the recorded redirection information or cell change information; or specifically, after the recording module successfully performs the redirection or the cell change, and the receiving module receives the second network If the report is sent by the node, the recorded redirection information or the cell change information is reported to the second network node; or is specifically used to determine that the preset report record condition is met by the judgment, and then the second network is sent to the second network. The node reports the recorded redirection information or cell change information.

 Further, the reporting module is specifically configured to: after the performing the redirection failure, the RRC connection request, the RRC connection setup complete message, or the RRC is sent to the first network node or the third network node. The configuration response message or other RRC message carries the recorded redirection information; or specifically, after the recording module performs the cell change failure, the cell is sent to the first network node or the third network node. The failure message or the RRC reconfiguration response message or other RRC message includes the recorded cell change information; or, specifically, after the recording module performs the redirection or the cell change fails, if the receiving module receives the If the report request is sent by the first network node or the third network node, the recorded redirection information or cell change information is reported.

 Further, the redirection information or the cell change information specifically includes any one or more of the following information: UE geographic location information, first network node cell information, second network node cell information, and third network node cell. Information, time information, tag information of system information of the second network node cell, cause of RRC connection establishment from the first network node to the second network node, cell reselection tracking record, and/or cell change failure reason, use from the first The system broadcast message of the target cell obtained by a network node fails to access the second network node.

 Further, the cell information includes frequency point information, global cell identity information, cell physical identity information, signal quality information, and/or wireless access system information.

 Further, the reason for the cell change failure includes any one or more of the following reasons:

 The RRC connection is not successfully established with the second network node before the timer expires;

 Establishing a connection with the second network node fails the random access procedure;

Not receiving an RRC connection setup message during the RRC connection with the second network node or The media access control address MAC conflict is resolved by the competition;

 The second network node is a forbidden cell or a reserved cell;

 Receiving an RRC connection drop message or an RRC connection re-release message during the establishment of the RRC connection with the second network node;

 The reason for rejecting the RRC connection drop message of the second network node;

 a reason for releasing the second network node RRC connection release message;

 In the process of establishing an RRC connection with the second network node, the started timer expires or stops causing the RRC connection establishment to fail.

 Further, the time information includes time period information and timestamp information, where: in the redirection information, the timestamp information is a time point at which the UE starts performing redirection; the time information includes a slave UE. Receiving a radio resource control protocol RRC release message, starting to delay the information that the UE successfully establishes an RRC connection with the redirected cell;

 In the cell change information, the timestamp information is a time point at which the UE starts performing cell change; the timestamp information includes starting from a UE receiving a cell change command, and establishing an RRC to the cell after the UE successfully and changed. Delay information for the connection.

 Further, it also includes:

 The reporting module 1 is configured to report the reason for the redirection if the redirection failure of the recording module is performed; if the cell change fails, report the cell change reason, send a cell change failure message to the first network node, and During the process of reestablishing the first network node, indicating that the reason for the reestablishment is a cell change failure.

 Embodiment 6

 FIG. 10 is a schematic flowchart diagram of an information acquiring method according to an embodiment of the present invention. As shown in FIG. 10, the information acquisition method includes:

 201. The upper node of one of the network nodes sends a redirection indication or a cell change command to the UE, so that the UE performs a redirection or cell change command, and records redirection information or cell change information;

202. If the UE is redirected or the cell is changed to the one node, the one node receives the redirect information or cell change information reported by the UE; and/or if the UE does not successfully redirect or If the cell is changed to the one node, the upper node of the one node or the lower node of the one node receives the redirection information or cell change information reported by the UE. The one node is, for example, the second network node in the information recording method of the foregoing embodiment, and the upper node of one node is, for example, the first network node in the information recording method of the foregoing embodiment, and the lower node of one node is, for example, the foregoing implementation. The third network node in the information recording method of the example. The specific process of the UE recording the redirection information or the cell change information, and the process of reporting the redirection information or the cell change information of the UE are the same as the information recording method of the foregoing embodiment, and therefore are not described herein again.

 According to the information acquiring method of the present embodiment, the network node receives the redirection information or the CCO information recorded by the UE in the process of performing the redirection or CCO, so that the network side can perform the redirection or the CCO failure when the UE performs the UE according to the UE. The network is optimized by performing real-time redirection or CCO, and/or the UE performs a redirection or CCO to perform statistics on the performance of the current network system.

 Further, the one node, the upper node of the one node, and the lower node of the one node are different radio access network nodes of different radio access systems; or different wireless connections of the same radio access system Incoming network nodes; or different frequency points of the same wireless access system; or different cells of the same wireless system.

 Further, if the UE performs the redirection or the cell change to the one node fails, the receiving, by the upper node or the lower node of the one node, the redirection information or the cell change information reported by the UE includes:

 If the UE is not successfully redirected or the cell is changed to the one node, the upper node of the one node re-establishes an RRC connection with the UE, and receives the redirection information or cell change information reported by the UE; Or

 If the UE is not successfully redirected or the cell is changed to the one node, the subordinate node of the one node establishes an RRC connection with the UE, and receives the redirection information or cell change information reported by the UE.

 Further, after the sending, by the upper node of the node, the redirection indication or the cell change command to the UE, the method further includes:

 If the UE does not successfully change the cell to the one node, the upper node or the lower node of the one node receives the cell change failure message sent by the UE.

 Further, it also includes:

The upper node of the one node sends a signaling indication message to the UE before the UE performs a redirection or a cell change command, where the signaling indication message is used to indicate that the UE receives the When the redirection indication or the cell change command is performed, the redirection information or the cell change information is recorded. Further, the sending, by the upper node of the one node, the signaling indication message to the UE before the UE performs the redirection or the cell change command includes:

 The upper node of the one node carries the signaling indication message in the redirection indication or the cell change command, and sends the message to the UE; or

 The upper node of the one node sends an RRC message carrying the signaling indication message to the UE.

 Further, the redirection indication is included in a radio resource control connection drop message or a radio resource control connection release message or an RRC reconfiguration message.

 Further, the receiving, by the one node, the redirection information or the cell change information reported by the UE includes:

 The one node sends a report of the report to the UE, and receives the redirect information or cell change information reported by the UE in response to the report of the report;

 The one node receives an RRC setup connection request or an RRC connection setup complete message or an RRC reconfiguration response message that is sent by the UE and carries the redirection information or cell change information; or

 The one node receives the redirection information or cell change information reported by the UE under the condition that the preset report record is met.

 Further, the receiving, by the upper node or the lower node of the one node, the redirection information or the cell change information reported by the UE includes:

 The upper node or the lower node of the one node receives an RRC setup connection request, an RRC connection setup complete message, or an RRC reconfiguration response message that is sent by the UE and carries the redirection information;

 The upper node or the lower node of the one node receives the cell change failure message or the RRC reconfiguration response message that is sent by the UE and carries the cell change information; or

 The upper node or the lower node of the one node sends a record request to the UE, and receives the redirect information or cell change information reported by the UE in response to the report record request.

 Further, it also includes:

The upper node or the lower node of the one node receives the redirection reason reported by the UE after the UE performs the redirection failure; and/or The upper node or the lower node of the one node receives the cell change reason reported by the UE after the UE performs the cell change failure.

 Further, it also includes:

 After the UE performs the cell change failure, the upper node of the one node performs reestablishment with the UE, and receives indication information that is sent by the UE to indicate that the reestablishment reason is a cell change failure.

 Further, it also includes:

 If the one node or the subordinate network node of the one node receives the redirection information or the cell change information, the one node or the lower node of the one node may use the redirection information or the cell change information. Forwarded to the superior node of the one node.

 Further, forwarding the redirection information or the cell change information to the upper node of the one node includes:

 If the one node or the lower node of the one node and the upper node of the one node belong to different network standards, the one node or the lower node of the one node passes the one node or the one node The direct transmission signaling of the lower-level node forwards the redirection information or the cell change information to the upper-level node of the one node; wherein, the direct transmission signaling is, for example, eNB DIRECT INFORMATION TRANSFER or mobile Management entity (MME) direct information transfer signaling (MME DIRECT INFORMATION TRANSFER), etc.;

 If the one node or the lower node of the one node belongs to the same network standard as the upper node of the one node, the one node or the lower node of the one node sends the message through the lur or X2 interface message. The redirect information or the cell change information is forwarded to the upper node of the one node, where the message directly transmitting the information (Direct Information Transfer), the information exchange initial request (INFORMATION EXCHANGE INITIATION REQUEST) or the information exchange initial response ( INFORMATION EXCHANGE INITIATION REQUEST ).

 Example 7

 The present embodiment provides a network node set including at least one node for performing the information acquisition method of the sixth embodiment and a superior node of the one node.

The network node set of this embodiment is used to perform the information obtaining method of the foregoing embodiment, and the specific process is the same as that of the foregoing embodiment, and therefore is not described herein again. According to the network node set of the embodiment, the redirection information or the CCO information recorded by the UE during the redirection or CCO process is received from the UE, so that the network side can perform the redirection according to the UE when the UE performs redirection or CCO failure. The real situation of the orientation or CCO is optimized for the network, and/or the UE performs a redirection or CCO to perform statistics on the performance of the current network system.

 Example eight

 FIG. 11 is a schematic structural diagram of a network node according to an embodiment of the present invention. As shown in Figure 11, the network nodes include:

 The information receiving module 111 is configured to receive the redirection information or the cell change information reported by the UE, where the redirection information or the cell change information is sent by the UE 4 according to a redirection indication sent by the upper node of the network node or The cell change command, the redirect information or the cell change information recorded when the redirect or cell change command is executed.

 The network node in this embodiment is, for example, a node for performing the information acquisition method of the foregoing sixth embodiment, or may be a superior node of one node, or a lower node of a node, which is specifically a base station or an MME in the network. Network element.

 The network node according to the embodiment, by receiving the redirection information or the cell change information recorded by the UE when performing the redirection or the cell change, enables the network node to optimize the network according to the redirection information or the cell change information, and/or is convenient. The delay and success rate of the UE CSFB are counted.

 Further, it also includes:

 The report requesting module 112 is configured to send a report of the report to the UE, so that the UE reports the redirect information or the cell change information in response to the report request.

 Embodiment 9 This embodiment provides a communication system including the UE of the above embodiment, and the network node set of the above embodiment.

 The flow of the information recording process performed by the communication system of this embodiment is the same as that of the foregoing embodiment, and therefore will not be described herein.

 According to the communication system of the present embodiment, when performing redirection or cell change, the UE records the redirection information or the cell change information, and reports the information to the network node, so that the network node optimizes the network according to the redirection information or the cell change information. And/or convenient statistics of the delay and success rate of the UE CSFB.

A person skilled in the art can understand that all or part of the steps of implementing the above method embodiments may be completed by using hardware related to program instructions, and the foregoing program may be stored in a computer readable storage medium, and the program is executed when executed. Including the steps of the above method embodiments; The foregoing storage medium includes: a medium that can store program codes, such as a ROM, a RAM, a magnetic disk, or an optical disk.

 It should be noted that the above embodiments are only for explaining the technical solutions of the present invention, and are not intended to be limiting; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those skilled in the art that: The technical solutions described in the foregoing embodiments are modified, or some of the technical features are equivalently replaced. The modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

Rights request

1. An information recording method, comprising:

 The user equipment UE receives the redirection indication or the cell change command sent by the first network node, where the redirection indication or the cell change command is used to indicate that the UE establishes a communication connection with the second network node;

 The UE performs a redirection or cell change command, and records redirection information or cell change information;

 The UE reports the redirect information or cell change information.

 The information recording method according to claim 1, wherein the reporting, by the UE, the redirection information or the cell change information comprises:

 Transmitting or redirecting the UE to the second network node, and reporting the redirect information or the cell change information to the second network node; or

 The UE does not successfully redirect or change the cell to the second network node, and sends the redirection information or cell change information to the first network node or the third network node.

 The information recording method according to claim 2, wherein the first network node, the second network node, and the third network node are different wireless access networks of different wireless access systems. a node; or a different radio access network node of the same radio access system; or a different frequency point of the same radio access system; or a different cell of the same wireless system.

 The information recording method according to claim 2 or 3, wherein the UE is not successfully redirected or the cell is changed to the second network node, and the redirect information or the cell change information is reported to the The first network node includes:

 The UE does not successfully redirect or change the cell to the second network node, and re-establishes a radio resource control protocol RRC connection with the first network node, and sends the redirection information or cell change information to the first Network node

 And the UE is not successfully redirected or the cell is changed to the second network node, and the redirecting information or the cell change information is sent to the third network node, where:

The UE is not successfully redirected or the cell is changed to the second network node, and an RRC connection is established with the third network node, and the redirect information or the cell change information is reported to the third network. Node.

 The information recording method according to any one of claims 2-4, wherein, after the UE does not successfully change the cell to the second network node, the method further includes:

 Sending a cell change failure message to the first network node or the third network node.

The information recording method according to any one of claims 1 to 4, wherein before the performing the redirection or the cell change command, the UE further includes:

 Obtaining a signaling indication message sent by the first network node, where the signaling indication message is used to indicate that the UE records the redirection information or the cell change information when performing the redirection or the cell change command.

 The information recording method according to claim 6, wherein the acquiring the signaling indication message sent by the first network node comprises:

 Acquiring the signaling indication message by parsing the redirection indication or the cell change command, where the redirection indication or the cell change command carries the signaling indication message; or

 Receiving an RRC message that is sent by the first network node and carrying the signaling indication message, and acquiring the signaling indication message by parsing the RRC message.

 The information recording method according to any one of claims 1 to 4, wherein the redirection indication is included in a radio resource control connection drop message or a radio resource control connection release message or an RRC heavy In the configuration message.

 The information recording method according to any one of claims 2-4, wherein the UE redirection or cell change to the second network node, reporting the redirection information or cell change information Giving the second network node includes:

 Transmitting or redirecting the UE to the second network node, and initiating an RRC connection establishment request or an RRC connection setup complete message or an RRC reconfiguration response message to the second network node, and carrying the recorded redirection information or Cell change information node; or

 And the UE redirects or the cell is changed to the second network node, and if the report request sent by the second network node is received, the recorded redirection information or cell change information is reported to the second network node. ; or

 The UE reports the recorded redirection information or cell change information to the second network node by determining that the preset report recording condition is met.

The information recording method according to any one of claims 2 to 4, characterized in that If the UE is not successfully redirected or the cell is changed to the second network node, the reporting of the redirection information or the cell change information to the first network node or the third network node includes:

 After performing the redirection failure, the UE carries the recorded redirection in an RRC connection establishment request, an RRC connection setup complete message, or an RRC reconfiguration response message sent to the first network node or the third network node. Information; or

 After the UE performs the cell change failure, the cell change failure message or the RRC reconfiguration response message sent to the first network node or the third network node includes the recorded cell change information; or

 After the UE performs the redirection or the cell change fails, if the report request sent by the first network node or the third network node is received, the recorded redirection information or cell change information is reported.

 The information recording method according to any one of claims 1 to 4, wherein the redirection information or the cell change information includes any one of the following information or

UE geographical location information, first network node cell information, second network node cell information, third network node cell information, time information, tag information of system information of the second network node cell, from the first network node to the second network The reason why the node performs the RRC connection establishment, the cell reselection tracking record, and/or the cell change failure reason, and the system broadcast message of the target cell obtained from the first network node fails to access the second network node.

 The information recording method according to claim 11, wherein the cell information comprises frequency point information, global cell identification information, cell physical identification information, signal quality information, and/or wireless access system information.

 The information recording method according to claim 11, wherein the cell change failure cause includes any one or more of the following reasons:

 The RRC connection is not successfully established with the second network node before the timer expires;

 Establishing a connection with the second network node fails the random access procedure;

 The RRC connection setup message is not received during the RRC connection with the second network node, or the media access control address MAC conflict is resolved.

 The second network node is a forbidden cell or a reserved cell;

Receiving an RRC connection drop message or an RRC connection re-release message during the establishment of the RRC connection with the second network node; The reason for rejecting the RRC connection drop message of the second network node;

 a reason for releasing the second network node RRC connection release message;

 In the process of establishing an RRC connection with the second network node, the started timer expires or stops causing the RRC connection establishment to fail.

 The information recording method according to claim 11, wherein the time information includes time period information and time stamp information, wherein:

 In the redirection information, the timestamp information is a time point at which the UE starts performing redirection; the time information includes starting from a UE receiving a radio resource control protocol RRC release message, and the UE successfully retargeting the cell. Establish delay information of the RRC connection;

 In the cell change information, the timestamp information is a time point at which the UE starts performing cell change; the timestamp information includes starting from a UE receiving a cell change command, and establishing an RRC to the cell after the UE successfully and changed. Delay information for the connection.

 The information recording method according to any one of claims 1-4 and 6, wherein after the performing the redirection or the cell change, the UE further comprises:

 If the UE fails to perform the redirection, the reason for the redirection is reported;

 If the cell fails to perform the cell change, the cell change reason is reported, and the cell change failure message is sent to the first network node, and in the process of reestablishing with the first network node, the reason for the reestablishment is the cell change failure. .

 The information recording method according to claim 10, wherein, if the second network node or the third network node receives the redirection information or the cell change information reported by the UE, the second network node or the The three network node forwards the redirect information or the cell change information to the first network node.

 A user equipment (UE), comprising:

 a receiving module, configured to receive a redirection indication or a cell change command sent by the first network node, where the redirection indication or the cell change command is used to indicate that a communication connection is established with the second network node;

 a recording module, configured to perform a redirection indication or a cell change command received by the receiving module, and record redirection information or cell change information;

 The reporting module is configured to report redirection information or cell change information recorded by the recording module.

18. The UE according to claim 17, wherein:

The reporting module is specifically configured to use the recording module to redirect or change a cell to the second network The network node reports the redirection information or the cell change information to the second network node; or the recording module fails to redirect or the cell changes to the second network node, and the redirection information or the cell change information is used. And giving the first network node or the third network node.

 The UE according to claim 18, wherein the first network node, the second network node, and the third network node are different radio access network nodes of different radio access systems; Or different radio access network nodes of the same radio access system; or different frequency points of the same radio access system; or different cells of the same wireless system.

 The UE according to claim 18 or 19, wherein the UE further comprises: a connection module, configured to: if the recording module is not successfully redirected or the cell is changed to the second network node, The first network node establishes an RRC connection;

 The reporting module is specifically configured to report the redirection information or the cell change information to the first network node after the connection module re-establishes an RRC connection with the first network node; or

 The connection module is configured to establish an RRC connection with the third network node if the recording module is not successfully redirected or the cell is changed to the second network node;

 The reporting module is specifically configured to report the redirection information or the cell change information to the third network node after the connection module re-establishes an RRC connection with the third network node.

 The UE according to any one of claims 18 to 20, wherein the UE further includes:

 And a sending module, configured to send the cell change failure message to the first network node or the third network node, if the recording module fails to change the cell to the second network node.

 The UE according to any one of claims 17 to 21, wherein the receiving module is further configured to acquire a signaling indication message sent by the first network node, where the signaling indication message is used. And when the receiving module receives the redirection indication or the cell change command, instructing the recording module to record redirection information or cell change information.

 The UE according to claim 22, wherein the receiving module is specifically configured to receive a redirection indication carrying the indication message or the cell change command;

 The UE further includes:

 a parsing module, configured to acquire the signaling indication message by parsing the redirection indication or the cell change command received by the receiving module; or

The receiving module is further configured to receive, by the first network node, the carrying the signaling finger RRC message indicating the message;

 The parsing module is configured to obtain the signaling indication message by parsing the RRC message received by the receiving module.

 The UE according to any one of claims 17-21, wherein the redirection indication received by the receiving module is included in a radio resource control connection drop message or a radio resource control connection release message or an RRC heavy In the configuration message.

 The UE according to any one of claims 17-21, characterized in that

 The reporting module is specifically configured to: after the recording module successfully performs the redirection or the cell change, initiate an RRC connection establishment request or an RRC connection setup complete message or an RRC reconfiguration response message to the second network node, and Carrying the recorded redirection information or cell change information; or specifically, after the recording module successfully performs the redirection or the cell change, and the receiving module receives the second network node sends the Reporting the record request, reporting the recorded redirection information or the cell change information to the second network node; or specifically, reporting to the second network node by determining that the preset report record condition is met Recorded redirect information or cell change information.

 The UE according to any one of claims 18 to 21, wherein the reporting module is specifically configured to send, to the first network node or the third, the recording module after performing the redirection failure. The RRC connection establishment request, the RRC connection establishment complete message, or the RRC reconfiguration response message or other RRC message of the network node carries the recorded redirection information; or specifically, after the recording module performs the cell change failure, The cell change failure message or the RRC reconfiguration response message or the other RRC message sent to the first network node or the third network node includes the recorded cell change information; or, specifically, the recording module performs the After the redirection or the cell change fails, if the receiving module receives the report request sent by the first network node or the third network node, the received redirection information or the cell change information is reported.

The UE according to any one of claims 17-21 and 23, wherein the redirection information or the cell change information specifically includes any one or more of the following information: UE geographic location information And the first network node cell information, the second network node cell information, the third network node cell information, the time information, the tag information of the system information of the second network node cell, and the RRC connection from the first network node to the second network node Reason for establishment, cell reselection tracking record and/or cause of cell change failure, using target cell obtained from the first network node The system broadcast message failed to access the second network node.

 The UE according to claim 27, wherein the cell information comprises frequency information, global cell identity information, cell physical identity information, signal quality information, and/or wireless access system information.

 The UE according to claim 27, wherein the cell change failure reason includes any one or more of the following reasons:

 The RRC connection is not successfully established with the second network node before the timer expires;

 Establishing a connection with the second network node fails the random access procedure;

 The RRC connection setup message is not received during the RRC connection with the second network node, or the media access control address MAC conflict is resolved.

 The second network node is a forbidden cell or a reserved cell;

 Receiving an RRC connection drop message or an RRC connection re-release message during the establishment of the RRC connection with the second network node;

 The reason for rejecting the RRC connection drop message of the second network node;

 a reason for releasing the second network node RRC connection release message;

 In the process of establishing an RRC connection with the second network node, the started timer expires or stops causing the RRC connection establishment to fail.

 The UE according to claim 27, wherein the time information includes time period information and time stamp information, where:

 In the redirection information, the timestamp information is a time point at which to start performing redirection; the time information includes starting from receiving a RRC release message from the UE, and the UE successfully establishes an RRC connection with the redirected cell. Delay information;

 In the cell change information, the timestamp information is a time point at which to start performing cell change; the timestamp information includes when the UE receives a cell change command, and when the UE successfully establishes an RRC connection with the changed cell. Extended information.

 The UE according to any one of claims 17-21 and 23, wherein the UE further comprises:

The reporting module 1 is configured to report the reason for the redirection if the redirection failure of the recording module is performed; if the cell change fails, report the cell change reason, send a cell change failure message to the first network node, and During the process of reestablishing the first network node, indicating that the reason for the reestablishment is a cell change failure.

32. A method for acquiring information, comprising:

 The upper node of the node in the network node sends a redirection indication or a cell change command to the UE, where the redirection indication or the cell change command is used to instruct the UE to establish a communication connection with the one node, so that the UE performs redirection. Or a cell change command, and record the redirect information or the cell change information;

 If the UE is redirected or the cell is changed to the one node, the one node receives the redirection information or cell change information reported by the UE.

 The method for acquiring information according to claim 32, wherein the method further comprises:

 If the UE is not successfully redirected or the cell is changed to the one node, the upper node of the one node or the lower node of the one node receives the redirection information or cell change information reported by the UE.

 The information acquiring method according to claim 33, wherein the one node, the upper node of the one node, and the lower node of the one node are different wireless access networks of different wireless access systems. a node; or a different radio access network node of the same radio access system; or a different frequency point of the same radio access system; or a different cell of the same wireless system.

 The information acquiring method according to claim 33 or 34, wherein if the UE performs redirection or cell change to the one node fails, the upper node or the lower node of the one node receives the The redirection information or the cell change information reported by the UE includes: if the UE is not successfully redirected or the cell is changed to the one node, the upper node of the one node re-establishes an RRC connection with the UE, and receives the Decoding the redirect information or cell change information reported by the UE; or

 If the UE is not successfully redirected or the cell is changed to the one node, the subordinate node of the one node establishes an RRC connection with the UE, and receives the redirection information or cell change information reported by the UE.

 The information acquiring method according to claim 33 or 34, wherein after the sending, by the upper node of the one node, the redirection indication or the cell change command to the UE, the method further includes: if the UE fails to successfully change the cell to The one node, the upper node or the lower node of the one node receives the cell change failure message sent by the UE.

The information acquiring method according to claim 33 or 34, wherein The method also includes:

 The upper node of the one node sends a signaling indication message to the UE before the UE performs a redirection or a cell change command, where the signaling indication message is used to indicate that the UE receives the redirection indication or the cell. When the command is changed, the redirect information or the cell change information is recorded.

 The information obtaining method according to claim 37, wherein the sending, by the upper node of the one node, the signaling indication message to the UE before the UE performs a redirection or a cell change command, includes:

 The upper node of the one node carries the signaling indication message in the redirection indication or the cell change command, and sends the message to the UE; or

 The upper node of the one node sends an RRC message carrying the signaling indication message to the UE.

 The information acquiring method according to claim 33, 34 or 38, wherein the redirection indication is included in a radio resource control connection drop message or a radio resource control connection release message or an RRC reconfiguration message.

 The information acquiring method according to claim 33, 34 or 38, wherein the receiving, by the one node, the redirection information or the cell change information reported by the UE comprises: the one node to the UE Sending a report request, and receiving the redirect information or cell change information reported by the UE in response to the report record request;

 The one node receives an RRC setup connection request or an RRC connection setup complete message or an RRC reconfiguration response message that is sent by the UE and carries the redirection information or cell change information; or

 The one node receives the redirection information or cell change information reported by the UE under the condition that the preset report record is met.

 The information obtaining method according to claim 33, 34 or 38, wherein the receiving, by the upper node or the lower node of the one node, the redirection information or the cell change information reported by the UE comprises:

 The upper node or the lower node of the one node receives an RRC setup connection request, an RRC connection setup complete message, or an RRC reconfiguration response message that is sent by the UE and carries the redirection information;

Receiving, by the upper node or the lower node of the node, a cell change failure message or an RRC reconfiguration response message that is sent by the UE and carrying the cell change information; or The upper node or the lower node of the one node sends a request for recording to the UE, and receives the redirection information or cell change information reported by the UE in response to the report request.

 The method for acquiring information according to claim 33, 34 or 38, wherein the method further comprises:

 The upper node or the lower node of the one node receives the redirection reason reported by the UE after the UE performs the redirection failure; and/or

 The upper node or the lower node of the one node receives the cell change reason reported by the UE after the UE performs the cell change failure.

 The method for acquiring information according to claim 33, 34 or 38, further comprising:

 After the UE performs the cell change failure, the upper node of the one node performs reestablishment with the UE, and receives indication information that is sent by the UE to indicate that the reestablishment reason is a cell change failure.

 The method for acquiring information according to claim 33, 34 or 38, further comprising:

 If the one node or the subordinate network node of the one node receives the redirection information or the cell change information, the one node or the lower node of the one node may use the redirection information or the cell change information. Forwarded to the superior node of the one node.

 The information acquiring method according to claim 44, wherein the forwarding the redirection information or the cell change information to the upper node of the one node comprises:

 If the one node or the lower node of the one node and the upper node of the one node belong to different network standards, the one node or the lower node of the one node passes the one node or the one node The direct transmission signaling of the lower node forwards the redirection information or the cell change information to the upper node of the one node;

 If the one node or the lower node of the one node belongs to the same network standard as the upper node of the one node, the one node or the lower node of the one node sends the message through the lur or X2 interface message. The redirect information or the cell change information is forwarded to the upper node of the one node, where the message through the lur interface directly transmits signaling, an information exchange initial request, or an information exchange initial response.

46. A network node set, characterized by at least comprising means for performing claims 32-45 a node of any of the information acquisition methods and a superior node of the one node; or a node that performs the information acquisition method according to any one of claims 32-45, a superior node of the one node, and the A subordinate node of a node.

 47. A network node, comprising:

 The information receiving module is configured to receive the redirection information or the cell change information reported by the UE, where the redirection information or the cell change information is sent by the UE according to a redirection indication or a cell change command sent by a superordinate node of the network node. When the redirect or cell change command is executed, the redirected information or the cell change information is recorded.

 The network node according to claim 47, further comprising: a report requesting module, configured to send a report request to the UE, so that the UE responds to the report request, and reports the heavy Directional information or cell change information.

 A communication system, comprising the UE according to any one of claims 17-31, and the network node set according to claim 46.