WO2013010464A1 - 小区信息上报和小区移动性参数调整的方法及设备 - Google Patents

小区信息上报和小区移动性参数调整的方法及设备 Download PDF

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Publication number
WO2013010464A1
WO2013010464A1 PCT/CN2012/078659 CN2012078659W WO2013010464A1 WO 2013010464 A1 WO2013010464 A1 WO 2013010464A1 CN 2012078659 W CN2012078659 W CN 2012078659W WO 2013010464 A1 WO2013010464 A1 WO 2013010464A1
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WO
WIPO (PCT)
Prior art keywords
cell
terminal
base station
event information
signal quality
Prior art date
Application number
PCT/CN2012/078659
Other languages
English (en)
French (fr)
Inventor
季莉
王淑坤
刘艳艳
Original Assignee
华为技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to JP2014519403A priority Critical patent/JP5869117B2/ja
Priority to EP12814828.5A priority patent/EP2720487B1/en
Publication of WO2013010464A1 publication Critical patent/WO2013010464A1/zh
Priority to US14/156,081 priority patent/US9560536B2/en

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/19—Connection re-establishment
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/04—Arrangements for maintaining operational condition
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/02—Terminal devices
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/08—Access point devices

Definitions

  • the present invention relates to the field of communications technologies, and in particular, to a method and a device for cell information reporting and cell mobility parameter adjustment.
  • LTE Long Term Evolution
  • eNB evolved NodeB
  • the measurement configuration information is sent to the terminal, and the terminal is instructed to measure the signal quality of the neighboring cell of the source cell and the source cell.
  • the terminal reports the measurement result to the source eNB, and the source eNB according to the terminal.
  • the reported measurement report determines whether or not to perform the handover.
  • An aspect of the present invention provides a cell information reporting method, including: a terminal connection failure occurs; the terminal reestablishes a radio resource control RRC connection; and the terminal sends a cell of a neighbor cell of the source cell to a control base station that reestablishes the RRC connected cell.
  • the identification and the above terminal are in the above connection Event information of the foregoing neighboring cells recorded before the failure.
  • Another aspect of the present invention provides another cell mobility parameter adjustment method, including: the control base station of the source cell acquires the cell identity of the neighboring cell of the source cell reported by the terminal after the connection failure occurs, and the terminal fails before the connection fails. The event information of the neighboring cell recorded; the control base station of the source cell adjusts the mobility parameter of the neighboring cell according to the event information of the neighboring cell recorded by the terminal before the connection failure occurs.
  • a further aspect of the present invention provides a terminal, comprising: a detecting unit, configured to detect that a terminal has failed to connect; and a reconstruction unit, configured to: when the detecting unit detects that the terminal fails to connect, reestablish a radio resource control RRC connection; and send And a unit, configured to send a cell identifier of a neighboring cell of the source cell to the control base station that reestablishes the RRC connected cell, and event information of the neighboring cell recorded by the terminal before the connection failure occurs.
  • a further aspect of the present invention provides a base station, including: an acquiring unit, configured to acquire a cell identifier of a neighboring cell of the source cell that is reported by a terminal after a connection failure occurs, and the neighboring cell recorded by the terminal before a connection failure occurs.
  • the event information the adjusting unit, configured to adjust, according to the event information of the neighboring cell recorded by the terminal, the foregoing neighboring cell recorded before the connection failure occurs, and the sending unit, The mobility parameter of the neighboring cell adjusted by the adjustment unit is sent to the terminal.
  • the terminal when the terminal fails to connect, the terminal reestablishes the radio resource control RRC connection, and sends the cell identity of the neighboring cell of the source cell to the control base station that reestablishes the RRC connected cell, and the terminal fails in the connection. Event information of the foregoing neighboring cells recorded previously.
  • control base station of the cell that reestablishes the RRC connection forwards the cell identifier of the neighboring cell of the source cell and the event information of the neighboring cell recorded by the terminal before the connection failure occurs to the control base station of the source cell, and further
  • the control base station of the source cell may adjust the mobility parameter of the neighboring cell according to an event experienced by the neighboring cell and send the mobility parameter to the terminal. In turn, the accuracy of the mobility parameter adjustment and the switching efficiency of the terminal are improved. It should be noted that, if the RRC-connected cell and the source cell belong to the same base station, the source base station can directly obtain the cell identity of the neighboring cell of the source cell and the neighboring cell recorded by the terminal before the connection failure occurs. Event information, and adjustment of the movement parameters of the neighboring cells.
  • An aspect of the present invention provides a cell information reporting method, including: a terminal connection failure occurs; the terminal reestablishes a radio resource control RRC connection; the terminal sends a cell identity of the source cell to the control base station that reestablishes the RRC connected cell, and the terminal is in the occurrence Record before the above connection fails
  • the event information of the source cell is sent by the terminal to the control base station of the cell that reestablishes the RRC connection, and the event information of the neighboring cell recorded by the terminal before the connection failure occurs.
  • the terminal sends a cell identifier of the source cell to a control base station that reestablishes the RRC-connected cell, and the source recorded by the terminal before the connection failure occurs.
  • Another aspect of the present invention provides another cell mobility parameter adjustment method, including: after a terminal fails to establish a connection failure and reestablishes an RRC connection, the control base station that reestablishes the RRC connected cell receives the information reported by the terminal; and the reestablishing the RRC connection.
  • the control base station of the cell forwards the information reported by the terminal to the control base station of the source cell;
  • the information reported by the terminal includes: a cell identifier of the source cell and event information of the source cell recorded by the terminal before the connection failure occurs; or And including: the cell identifier of the neighboring cell of the source cell and the event information of the neighboring cell recorded by the terminal before the connection failure occurs; or: the cell identifier of the source cell, and the foregoing record recorded by the terminal before the connection failure occurs.
  • the event information of the source cell, the cell identifier of the neighboring cell of the source cell, and the event information of the neighboring cell recorded by the terminal before the connection failure occurs; wherein the neighboring cell and the source cell are different frequency cells or different systems Community.
  • a further aspect of the present invention provides a terminal, comprising: a detecting unit, configured to detect that a terminal has failed to connect; and a reconstruction unit, configured to: when the detecting unit detects that the terminal fails to connect, reestablish a radio resource control RRC connection; And transmitting, by the control base station that reestablishes the RRC connected cell, the cell identifier of the source cell and the event information of the source cell that is recorded by the terminal before the connection failure occurs; or sending the source to the control base station that reestablishes the RRC connected cell.
  • the control unit of the cell transmits the cell identifier of the source cell, the event information of the source cell recorded by the terminal before the connection failure occurs, the cell identifier of the neighboring cell of the source cell, and the record recorded by the terminal before the connection failure occurs.
  • Event information of the foregoing neighboring cell, the above phase The neighboring cell and the above source cell are inter-frequency cells or different system cells.
  • a further aspect of the present invention provides a base station, including: a receiving unit, configured to: after a connection failure occurs and reestablish an RRC connection, receive information reported by the terminal; and a forwarding unit, configured to forward the foregoing to the control base station of the source cell
  • the information reported by the terminal received by the unit; the information reported by the terminal includes: the cell identifier of the source cell and the event information of the source cell recorded by the terminal before the connection failure occurs; or: the neighboring of the source cell The cell identifier of the cell and the event information of the neighboring cell recorded by the terminal before the connection failure occurs; or: the cell identifier of the source cell, the event information of the source cell recorded by the terminal before the connection failure occurs, and the source The cell identifier of the neighboring cell of the cell and the event information of the neighboring cell recorded by the terminal before the connection failure occurs; wherein the neighboring cell and the source cell are an inter-frequency cell or a different-system cell.
  • the terminal when the terminal fails to connect, the terminal reestablishes the radio resource control RRC connection, and sends the cell identifier of the source cell to the control base station that reestablishes the RRC connected cell and the foregoing record recorded by the terminal before the connection failure occurs.
  • Event information of the source cell or, transmitting, to the control base station of the cell that reestablishes the RRC connection, the cell identity of the neighboring cell that is different from the source cell frequency or the communication system, and the event information of the neighboring cell; or
  • the control base station of the cell sends the cell identifier of the source cell and the event information of the source cell, and the cell identifier of the neighboring cell and the event information of the neighboring cell, so that the control base station of the reestablished RRC connected cell reports the above
  • the information is forwarded to the control base station of the source cell, and the control base station of the source cell can adjust the mobility parameter according to the event experienced by the source cell and/or the event experienced by the neighboring cell of the source cell or the different system.
  • FIG. 1 is a schematic flowchart of a method for reporting cell information according to an embodiment of the present invention
  • FIG. 2 is a schematic flowchart of a cell mobility parameter adjustment method according to an embodiment of the present invention
  • 4 is a schematic flowchart of a method according to another embodiment of the present invention
  • FIG. 5 is a schematic structural diagram of a terminal according to an embodiment of the present invention.
  • FIG. 6 is a schematic structural diagram of a base station according to an embodiment of the present invention.
  • FIG. 7 is a flowchart of a cell information reporting method according to an embodiment of the present invention.
  • FIG. 8 is a flowchart of a cell mobility parameter adjustment method according to an embodiment of the present invention
  • FIG. 9 is a schematic flowchart of a method according to another embodiment of the present invention.
  • FIG. 10 is a schematic flowchart diagram of a method according to another embodiment of the present invention.
  • FIG. 11 is a schematic structural diagram of a terminal according to an embodiment of the present invention.
  • FIG. 12 is a schematic structural diagram of a base station according to an embodiment of the present invention.
  • the technical solutions in the embodiments of the present invention will be described clearly and completely in conjunction with the accompanying drawings in the embodiments of the present invention. It is obvious that the embodiments described below are a part of the embodiments of the present invention, and not all of the embodiments. example. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.
  • FIG. 1 is a flowchart of an embodiment of a method for reporting cell information according to the present invention. As shown in FIG. 1, the method includes the following content.
  • the terminal has a connection failure.
  • connection failure of the terminal may be a radio link failure (RLF) of the terminal in the source cell, or a handover failure (H ⁇ F) of the terminal.
  • RLF radio link failure
  • H ⁇ F handover failure
  • the terminal may be a user equipment (UE), such as a wireless communication device, a handheld device, a cordless phone, or the like.
  • UE user equipment
  • the terminal reestablishes a Radio Resource Control (RRC) connection.
  • RRC Radio Resource Control
  • the terminal may re-establish the RRC connection in the source cell, or may re-establish the RRC connection in the handover target cell where the handover fails, and may also re-establish the RRC connection in the third cell except the source cell and the handover target cell.
  • S103 The terminal sends a cell identifier of a neighboring cell of the source cell to a control base station that reestablishes the RRC connected cell, and an event message of the neighboring cell recorded by the terminal before the connection failure occurs.
  • the reestablishing the RRC connected cell may be generated. Switching the failed handover target cell, or the source cell, or the third cell other than the source cell and the handover target cell.
  • the event information of the neighboring cell recorded by the terminal before the connection failure occurs may also be referred to as "event information of the neighboring cell”
  • the control base station of the source cell may also be referred to as The source base station
  • the control base station of the handover target cell may also be referred to as a handover target base station
  • the control base station of the third cell may also be referred to as a third base station.
  • the event information of the foregoing neighboring cell includes one of the following information: initial state information, a signal quality threshold, a Time to Trigger (TTT) timeout, and a terminal receiving a handover command.
  • initial state information e.g., initial state information
  • signal quality threshold e.g., a signal quality threshold
  • TTT Time to Trigger
  • the connection failure of the terminal is RLF
  • the neighboring cell The event information is: initial state information; or, if the signal quality of the neighboring cell of the source cell satisfies a preset signal quality threshold before the RLF occurs in the terminal, and the TTT does not time out, the event information of the neighboring cell is : satisfy the signal quality threshold; or,
  • the event information of the neighboring cell is: TTT timeout.
  • the event information of the neighboring cell is: To the switch command
  • the event information of the neighboring cell is: the terminal has sent the preamble;
  • the event information of the neighboring cell is: the terminal has obtained the preamble response; or, if the HOF occurs at the terminal, the terminal The first scheduled uplink message is sent to the handover target base station, and the event information of the neighboring cell is: the terminal has sent the scheduling message; or, if the HOF occurs in the terminal, the terminal has received the handover target base station returned Conflict If the indication information is resolved, the event information of the neighboring cell is: the terminal has received the conflict resolution indication information; or
  • the event information of the neighboring cell is: The terminal has received the configuration preamble information.
  • the neighboring cells of the source cell in the foregoing embodiments may be one or more.
  • the cell A is the source cell
  • the neighboring cell of the cell A may be one or more of the cell C, the cell D, and the cell E.
  • the neighboring cells of the cell A are referred to as cell B, cell C, cell D, and cell E.
  • the event information of each of the foregoing neighboring cells recorded by the terminal before the connection failure occurs may be respectively
  • the terminal may transmit the table 1 to the target base station in S103.
  • the event information corresponding to the cell B before the RLF is generated is the TTT timeout
  • the event information corresponding to the cell C is the signal quality threshold.
  • the event information corresponding to the cell D is the initial state information.
  • the event information of the cell E is that the terminal receives the handover command.
  • Table 1 takes Table 1 as an example to describe the process of the terminal recording the event information of the neighboring cell.
  • the terminal first sets the event information of the neighboring cell to the initial state information, and the initialization information may also be referred to as the initialization state of the event information of the neighboring cell, for example, the terminal will report the event information of the four neighboring cells in Table 1. Set to initial status information.
  • the information is initialization information, such as event information corresponding to cell D in Table 1.
  • the terminal Before the RLF occurs in the terminal, if the terminal measures the signal quality of the cell C is full. If the preset signal quality threshold is sufficient, and the TTT does not time out, the event information corresponding to the cell C is updated from the initial state information to the signal quality threshold.
  • the event information of the cell C that is sent by the terminal to the target base station after the RLF occurs is the signal quality threshold, for example, the event information corresponding to the cell C in Table 1.
  • the terminal Before the RLF occurs in the terminal, if the terminal determines that the signal quality of the cell B meets the preset signal quality threshold, and the TTT does not time out, the event information corresponding to the cell B is updated from the initial state information to the signal quality threshold. If the time when the cell B meets the threshold of the preset signal quality exceeds the preset TTT duration, that is, the TTT times out, the terminal updates the event information corresponding to the cell B from the satisfying signal quality threshold to the TTT timeout.
  • the event information of the cell B that the terminal sends to the target base station after the RLF occurs is the TTT timeout, for example, the event information corresponding to the cell B in Table 1.
  • the terminal Before the RLF occurs in the terminal, if the terminal determines that the signal quality of the cell E meets the preset signal quality threshold, and the TTT does not time out, the event information corresponding to the cell E is updated from the initial state information to the signal quality threshold. If the time when the cell E meets the threshold of the preset signal quality exceeds the preset TTT duration, that is, the TTT times out, the terminal updates the event information corresponding to the cell E from the satisfied signal quality threshold to the TTT timeout; if the HOF occurs in the terminal The terminal has received the handover command sent by the source base station, and the terminal updates the event information corresponding to the cell E from the TTT timeout to the terminal receiving the handover command.
  • the event information of the cell E sent by the terminal to the target base station after the terminal generates the HOF is that the terminal receives the handover command, for example, the event information corresponding to the cell E in Table 1.
  • the terminal updates the original event information with the new event information when a new event occurs. Therefore, the event reported by the terminal to the neighboring cell of the target base station after the RLF or HOF occurs occurs.
  • the information reflects the most recent events involved in neighboring cells.
  • the foregoing cell identifier may be a physical identifier (ID, ID) of the cell, or may be a Cell Global Identifier (CGI), or may be a physical ID and a CGI.
  • ID physical identifier
  • CGI Cell Global Identifier
  • the above event information may be represented by an event identifier, for example, in any form or combination of numbers, letters, strings, etc., each event having a unique event identifier.
  • the initial state is represented as "0”
  • the signal quality threshold is expressed as "1”
  • the TTT timeout is indicated as "2”
  • the terminal receives the switching command as "3"
  • the initial state is expressed as "00”
  • the signal quality threshold is expressed as "01
  • TTT timeout is expressed as "10”
  • the switch command is indicated as "1 1 ".
  • the foregoing terminal may further send one or more of the following parameters that are sent by the source base station to the target base station: a timer T310 for determining whether to generate an RLF, and determining whether to start the timer
  • the number of out-of-synchronization indications N310 is used to determine whether to terminate the synchronization indication number N311 of the timer, the maximum number of times the radio link control layer retransmits, and the maximum number of preamble retransmissions.
  • the source base station and the target base station may be an evolved base station eNB, a base station (BS), a Node B (Node B), an access point (AP), and the like.
  • the source base station and the target base station may be a macro base station, a medium base station, or a micro base station, such as a home base station.
  • the terminal when the terminal fails to connect, the terminal reestablishes the RRC connection, and sends the cell identity of the neighboring cell of the source cell to the control base station that reestablishes the RRC connected cell, and the terminal fails to generate the connection.
  • the previously recorded event information of the neighboring cell so that the control base station of the reestablished RRC connected cell sets the cell identity of the neighboring cell of the source cell and the event of the neighboring cell recorded by the terminal before the connection failure occurs.
  • the information is forwarded to the source base station, so that the source base station can adjust the mobility parameter of the neighboring cell according to the event experienced by the neighboring cell, and send the mobility parameter to the terminal, thereby improving the accuracy of the mobility parameter adjustment and the switching efficiency of the terminal.
  • the source base station can directly obtain the cell identity of the neighboring cell of the source cell and the neighboring cell recorded by the terminal before the connection failure occurs. Event information, and adjustment of the movement parameters of the neighboring cells.
  • FIG. 2 is a flowchart of an embodiment of a cell mobility parameter adjustment method provided by the present invention. As shown in FIG. 2, the method includes the following content.
  • the control base station of the source cell acquires the cell identifier of the neighboring cell of the source cell that is reported by the terminal after the connection failure occurs, and event information of the neighboring cell recorded by the terminal before the connection failure occurs.
  • the cell identifier of the neighboring cell of the source cell and the event information of the neighboring cell recorded by the terminal before the connection failure occurs are the control base station reported by the terminal to the cell that reestablishes the RRC connection, and the content of the specific reporting process is shown in FIG. 1 . The contents of the illustrated embodiment are not described herein again.
  • the control base station of the source cell receives the terminal report.
  • the control base station of the source cell adjusts a mobility parameter of the neighboring cell according to event information of the neighboring cell recorded by the terminal before a connection failure occurs.
  • the threshold of the signal quality in the mobility parameter of the neighboring cell is lowered; if the event information of the neighboring cell is to satisfy the signal quality If the number of thresholds exceeds a preset threshold, the TTT duration in the mobility parameter of the neighboring cell is reduced.
  • the source base station may receive event information of neighboring cells reported by one or more terminals. Therefore, the source base station may collect event information of adjacent cells sent by one or more terminals in a period of time.
  • the event information of a neighboring cell sent by a terminal in a period of time is initial state information, indicating that the neighboring cell does not meet the preset signal quality threshold for a period of time, that is, no event occurs, or more than a period of time If more than 90% of the event information reported by a terminal is an initial state information, it indicates that the preset signal quality threshold of the neighboring cell may be set too high.
  • the source base station may appropriately adjust the neighboring cell pre- The relevant parameters of the signal quality threshold, including cell-specific offset ( ⁇ cn), measurement event offset (offset), etc., thereby reducing the preset signal quality threshold. For example, if more than 90% of the event information reported by a terminal or a plurality of terminals in a neighboring cell meets the preset signal quality threshold for a period of time, the TTT duration of the neighboring cell may be too long, therefore, the source The base station can appropriately shorten the TTT duration of the neighboring cell.
  • the above are only two specific examples of adjusting the mobile performance parameters of neighboring cells by the source base station, but are not intended to be limiting of the present invention.
  • the source base station can adjust the mobility performance parameter of the neighboring cell according to the event information of the neighboring cell reported by one terminal or multiple terminals in a period of time, so as to more accurately adjust the mobility performance parameter of the neighboring cell, thereby Improve the switching efficiency of the terminal.
  • the source base station obtains the cell identifier of the neighboring cell of the source cell reported by the terminal after the connection failure occurs, and the event information of the neighboring cell recorded by the terminal before the connection failure occurs.
  • the source base station may adjust the mobility parameter of the neighboring cell according to the event information of the neighboring cell, and send the mobility parameter to the terminal, thereby improving the accuracy of the mobility parameter adjustment.
  • the accuracy and switching efficiency of the terminal may be adjusted.
  • FIG. 3 a scenario in which the terminal generates an RLF with the source base station before receiving the handover command sent by the source base station is taken as an example, and the embodiment provided in FIG. 1 and FIG. Technical solutions.
  • This embodiment specifically includes the following contents.
  • the terminal receives measurement configuration information sent by the source base station, and performs measurement on the source cell (ie, the current serving cell) and the neighboring cell according to the measurement configuration information.
  • the terminal receives the measurement configuration information that is sent by the source base station, and the measurement configuration information indicates that the terminal performs signal quality measurement on the source cell and the neighboring cell, where the measurement configuration information includes mobility parameters of the neighboring cell.
  • the foregoing adjacent cells may be one or plural.
  • the mobility parameter may include: a signal quality threshold, for example: A3 threshold, and the A3 threshold is a signal quality threshold, specifically a threshold for reporting a report event defined in the 3GPP 36.331 standard protocol.
  • the signal quality may be Reference Signal Receiving Power (RSRP), or Reference Signal Receiving Quality (RSRQ), etc.; the mobility parameter may also include: TTT duration, if the signal quality of the neighboring cell When the time when the preset signal quality threshold is exceeded exceeds the TTT duration, the terminal reports the measurement report to the source base station.
  • RSRP Reference Signal Receiving Power
  • RSRQ Reference Signal Receiving Quality
  • the neighboring cell is used as the cell 1 as an example. In fact, there may be multiple neighbor cells for measurement by the terminal.
  • the terminal measures that the signal quality of the cell 1 meets the preset signal quality threshold, starts the TTT, and the TTT does not time out, and updates the event information corresponding to the cell identifier of the cell 1 from the initial state information to the signal quality threshold.
  • the signal quality threshold in this embodiment may be an A3 threshold.
  • the preset signal quality threshold is a preset threshold indicated in the measurement configuration information delivered by the source base station.
  • the initial event information corresponding to the cell identifier of the default cell 1 is initial state information.
  • the terminal updates the event information corresponding to the cell identifier of the cell 1 from the initial state information to the signal quality threshold.
  • the terminal updates the event information corresponding to the cell identifier of each neighboring cell to the signal quality threshold.
  • the terminal updates the event information corresponding to the cell identifier of the cell 1 to the TTT timeout, and the terminal reports the measurement report to the source base station.
  • the TTT duration may be the duration of the TTT indicated in the measurement configuration information delivered by the source base station.
  • the terminal generates an RLF in the source cell, and the terminal reestablishes the RRC connection, and the terminal reports the cell identifier of the cell 1 and the event information corresponding to the cell 1 to the control base station of the cell that reestablishes the RRC connection.
  • the terminal may carry the cell identifier of the cell 1 and the event information corresponding to the cell 1 in the RLF report to the control base station of the cell that reestablishes the RRC connection.
  • the RRC-connected cell may be a source cell or a source cell. In this embodiment, the scenario in which the RRC-connected cell is not the source cell, and the RRC-connected cell and the source cell do not belong to the same base station are used as an example. .
  • the scenario in this embodiment is that after the signal quality of the cell 1 meets the preset signal quality threshold exceeds the TTT duration, the event information corresponding to the cell 1 has been updated to the TTT timeout, and the terminal generates the RLF in the source cell. Therefore, in S304 of this embodiment, the event information of the cell 1 reported by the terminal to the control base station that reestablishes the RRC-connected cell is a TTT timeout.
  • the terminal performs the RLF in the source cell, that is, the S304 is directly executed after the S301, and the event information corresponding to the cell 1 is still the initial state. information.
  • the event information of the cell 1 reported by the terminal to the control base station of the cell in which the RRC connection is reestablished in S304 is initial state information.
  • the terminal If the signal quality of the cell 1 meets the set threshold, but the TTT timeout condition has not occurred, the terminal generates an RLF in the source base station (ie, S302 is executed after S302), and the event information corresponding to the cell 1 is the signal quality threshold identifier. In this case, the event information of the cell 1 reported by the terminal to the control base station of the cell that reestablishes the RRC connection in S304 is that the signal quality threshold is met.
  • the terminal may also report one or more of the following information delivered by the source base station to the control base station that reestablishes the RRC connected cell: T310 (specifically, a timer for determining whether to generate RLF), and N310 (the number of consecutively reporting Qout) , where Qout is the signal quality threshold for judging whether out-of-synchronization occurs, radio link control (RLC) retransmission maximum retransmission times, random access channel (RACH) preamble maximum retransmission times, etc. And adjusting the mobile performance parameter of the neighboring cell by the auxiliary source base station.
  • T310 specifically, a timer for determining whether to generate RLF
  • N310 the number of consecutively reporting Qout
  • Qout is the signal quality threshold for judging whether out-of-synchronization occurs
  • RLC radio link control
  • RACH random access channel
  • the control base station that reestablishes the RRC connected cell forwards the cell identifier of the cell 1 reported by the terminal and the event information corresponding to the cell 1 to the source base station.
  • the source base station adjusts the mobility parameter of the cell 1 according to the event information corresponding to the cell 1.
  • the method for adjusting the mobility parameter of the cell 1 in S306 refer to the details in the embodiment shown in FIG. 2, and details are not described herein again.
  • the terminal when the terminal generates the RLF, the terminal reestablishes the RRC connection, and sends the cell identity of the neighboring cell of the source cell to the control base station that reestablishes the RRC connected cell and the record recorded by the terminal before the RLF occurs. Event information of the foregoing neighboring cells.
  • the control base station of the cell that reestablishes the RRC connection forwards the cell identifier of the neighboring cell of the source cell and the event information of the neighboring cell recorded by the terminal before the RLF loss occurs to the source base station, so that the source base station can
  • the mobility parameter of the neighboring cell is adjusted according to an event experienced by the neighboring cell and sent to the terminal.
  • the accuracy of the mobility parameter adjustment and the switching efficiency of the terminal are improved. It should be noted that, if the RRC-connected cell and the source cell belong to the same base station, the source base station can directly obtain the cell identity of the neighboring cell of the source cell and the neighboring cell recorded by the terminal before the connection failure occurs. Event information, and adjustment of the movement parameters of the neighboring cells.
  • FIG. 4 is a flowchart of still another embodiment of a cell mobility parameter adjustment method according to the present invention. As shown in FIG. 4, the difference between this embodiment and the previous embodiment is that the terminal generates H after receiving the handover command. F.
  • the method specifically includes the following.
  • the terminal receives measurement configuration information sent by the source base station, and performs measurement on the source cell (ie, the current serving cell) and the neighboring cell according to the measurement configuration information.
  • the terminal measures that the signal quality of the cell 2 meets the preset signal quality threshold (the threshold is set to the A3 threshold in this embodiment), then starts the TTT, and the TTT does not time out, and the event information corresponding to the cell identifier of the cell 2 is The initial state information is updated to meet the signal quality threshold.
  • the threshold is set to the A3 threshold in this embodiment
  • the terminal updates the event information corresponding to the cell identity of the cell 2 to the TTT timeout, and the terminal The source base station reports the measurement report.
  • S401-S403 is similar to the process of S301-S303 in the embodiment shown in FIG. 3. For details, refer to the embodiment shown in FIG. 3.
  • S404 The terminal receives the handover command sent by the source base station (for example, HO Command), and the terminal updates the event information corresponding to the cell 2 by the TTT timeout to the terminal receiving the handover command.
  • the source base station for example, HO Command
  • the terminal After receiving the handover command, the terminal disconnects from the source base station and starts to establish a link with the handover target base station.
  • the terminal generates HOF, that is, the handover target base station is not successfully switched.
  • the terminal reestablishes an RRC connection, and carries the cell identifier of the cell 2 in the RLF report.
  • the event information corresponding to the cell 2 is reported to the control base station that reestablishes the RRC connection.
  • the event information corresponding to the cell 2 is that the terminal terminal receives the handover command.
  • control base station that reestablishes the RRC connection may be the source base station, or the handover target base station where the handover fails, or the third base station other than the source base station and the handover target base station.
  • control base station that re-establishes the RRC connection is the handover target base station or the third base station, and the reestablishment of the RRC-connected base station and the source base station are not the same base station as an example.
  • the terminal may also report one or more of the following information delivered by the source base station to the control base station that reestablishes the RRC connection: T310, N310, N31 1, RLC retransmission maximum retransmission times, random access preamble maximum retransmission The number of times, etc., to adjust the mobile performance parameters of the neighboring cells by the secondary source base station.
  • the control base station that reestablishes the RRC connection forwards the cell identifier of the cell 1 reported by the terminal and the event information corresponding to the cell 1 to the source base station of the terminal.
  • the source base station adjusts the mobility parameter of the cell 2 according to the event information corresponding to the cell 2.
  • the method for adjusting the mobility parameter of the cell 2 in S408 refer to the details in the embodiment shown in FIG. 2, and details are not described herein again.
  • the terminal may also initiate random access or non-random access to the handover target base station.
  • the terminal may initiate the random access (RACH) to the handover target base station.
  • RACH random access
  • the terminal may update the event information corresponding to the cell 2 to the terminal that has sent the preamble; the terminal may receive the After the preamble response message sent by the target base station is switched, the event information corresponding to the cell 2 is updated to be that the terminal has obtained the preamble response; the terminal may send the event information corresponding to the cell 2 after transmitting the first scheduled uplink message to the handover target base station.
  • the terminal sends a scheduling message to the terminal.
  • the terminal may update the event information corresponding to the cell 2 to the terminal that has received the conflict resolution indication information.
  • the event information of the cell 2 may be represented by an identifier, for example, the preamble of the terminal may be represented by "4", the preamble response of the terminal may be represented by "5", and the terminal has sent a scheduling message. It can be indicated by "6", and the terminal has received the conflict resolution indication information and can be represented by "7".
  • the terminal When the terminal initiates non-random access to the handover target base station, the terminal receives the configuration preamble information delivered by the handover target base station, and updates the event information corresponding to the cell 2 to the terminal that has received the configuration preamble information; Sending the preamble, the event information corresponding to the cell 2 is further The new terminal has sent a preamble; if the terminal receives the preamble response message returned by the handover target base station, the event information corresponding to the cell 2 is updated to that the terminal has acquired the preamble response.
  • the source base station can adjust the uplink power of the cell 2.
  • the terminal when the terminal generates the HOF, the terminal reestablishes the RRC connection, and sends the cell identity of the neighboring cell of the source cell to the control base station that reestablishes the RRC connected cell and the record of the terminal before the HOF occurs. Event information of the foregoing neighboring cells.
  • the control base station of the cell that reestablishes the RRC connection forwards the cell identifier of the neighboring cell of the source cell and the event information of the neighboring cell recorded by the terminal before the HOF failure occurs to the source base station, so that the source base station can
  • the mobility parameter of the neighboring cell is adjusted according to an event experienced by the neighboring cell and sent to the terminal. Furthermore, the accuracy of the mobility parameter adjustment and the switching efficiency of the terminal are improved. It should be noted that, if the RRC-connected cell and the source cell belong to the same base station, the source base station can directly obtain the cell identity of the neighboring cell of the source cell and the neighboring cell recorded by the terminal before the connection failure occurs. Event information, and adjustment of the movement parameters of the neighboring cells.
  • the storage medium may be a magnetic disk, an optical disk, a read-only memory (ROM), or a random access memory (RAM).
  • FIG. 5 is a schematic structural diagram of a terminal according to an embodiment of the present invention. As shown in FIG. 5, the terminal 50 includes: a detecting unit 11, a reconstructing unit 12, and a sending unit 13.
  • the detecting unit 11 is configured to detect that the terminal has failed to connect; the re-establishing unit 12 is configured to re-establish a radio resource control RRC connection when the detecting unit detects that the terminal fails to connect, and the sending unit 13 is configured to The control base station that reestablishes the RRC-connected cell transmits the cell identifier of the neighboring cell of the source cell and the event information of the neighboring cell recorded by the terminal before the connection failure occurs.
  • the event information of the neighboring cell sent by the sending unit 13 includes one of the following information: initial state information, a signal quality threshold, a trigger time TTT timeout, and a terminal receiving a handover command. If the connection failure detected by the detecting unit 11 is that the terminal generates RLF in the source cell, then:
  • the event information of the neighboring cell sent by the sending unit 13 is: initial state information
  • the event information of the neighboring cell sent by the sending unit 13 is: Quality threshold; or,
  • the event information of the neighboring cell sent by the sending unit 13 is: TTT time out.
  • connection failure detected by the detecting unit 11 is a handover failure HOF of the terminal, then:
  • the event information of the neighboring cell sent by the sending unit 13 is: the terminal receives the handover command; or
  • the terminal has sent a preamble message to the control base station of the handover target cell, and the event information of the neighboring cell sent by the sending unit 13 is: the terminal has sent Leading; or,
  • the detecting unit detects that the terminal has generated the HOF, the terminal has received the preamble response message returned by the control base station of the handover target cell, and the event information of the neighboring cell sent by the sending unit 13 is: The terminal has obtained the preamble response; or,
  • the detecting unit 11 detects that the terminal generates HOF, the terminal has sent the first scheduled uplink message to the control base station of the handover target cell, and the event information of the neighboring cell sent by the sending unit 13 To: The terminal has sent a scheduling message; or,
  • the detection unit 11 detects that the terminal has generated the HOF, and the terminal has received the conflict resolution indication information returned by the control base station of the handover target cell, the event information of the neighboring cell sent by the sending unit 13 is : The terminal has received the conflict resolution indication message; or,
  • the sending unit 13 is further configured to: send, to the control base station of the target cell, one or more of the following parameters sent by the control base station of the source cell: a timer for determining whether to generate an RLF, Determining whether to start the number of out-of-synchronization indications of the timer, determining whether to terminate the synchronization indication of the timer, the maximum number of times the radio link control layer retransmits, and the maximum number of preamble retransmissions.
  • the foregoing terminal provided in this embodiment can implement the operation content of the terminal in the method embodiment shown in FIG. 1 - 4, and details are not described herein again.
  • the terminal provided by the embodiment of the present invention reestablishes an RRC connection when a connection failure occurs, and sends a cell identifier of a neighboring cell of the source cell to the control base station that reestablishes the RRC connected cell, and the foregoing phase recorded by the terminal before the connection failure occurs.
  • Event information of the neighboring cell The control base station of the cell that reestablishes the RRC connection forwards the cell identifier of the neighboring cell of the source cell and the event information of the neighboring cell recorded by the terminal before the connection failure occurs, to the source base station, thereby enabling the source base station to
  • the mobility parameter of the neighboring cell is adjusted according to an event experienced by the neighboring cell and sent to the terminal.
  • the accuracy of the mobility parameter adjustment and the switching efficiency of the terminal are improved. It should be noted that, if the RRC-connected cell and the source cell belong to the same base station, the source base station can directly obtain the cell identity of the neighboring cell of the source cell and the neighboring cell recorded by the terminal before the connection failure occurs. Event information, and adjustment of the movement parameters of the neighboring cells.
  • FIG. 6 is a schematic structural diagram of a base station according to an embodiment of the present invention. As shown in FIG. 6, the base station includes: an obtaining unit 21 and an adjusting unit 22.
  • the acquiring unit 21 is configured to acquire the cell identifier of the neighboring cell of the source cell that is reported by the terminal after the connection failure occurs, and the event information of the neighboring cell that is recorded before the terminal fails to connect.
  • the adjusting unit 22 is configured to use The event information of the neighboring cell recorded by the terminal acquired by the acquiring unit 21 before the connection failure occurs, and the mobility parameter of the neighboring cell is adjusted.
  • the cell belongs to the same base station; the acquiring unit is further configured to: after the terminal reestablishes the RRC connection, receive the neighbor cell of the source cell reported by the terminal The cell identity and the event information of the neighboring cell recorded by the terminal before the connection failure occurs.
  • the acquiring unit is further configured to: after the terminal reestablishes the RRC connection, receive the source cell forwarded by the control base station of the cell that reestablishes the RRC connection Cell identity of neighboring cells And event information of the neighboring cell recorded by the terminal before the connection failure occurs.
  • the event information of the neighboring cell acquired by the acquiring unit includes one of the following information: initial state information, a signal quality threshold, a trigger time TTT timeout, and a terminal receiving a handover command.
  • the adjusting unit 22 may be specifically configured to: if the event information of the neighboring cell is that the quantity of the initial state information exceeds a preset threshold, reduce the signal quality in the mobility parameter of the neighboring cell. If the event information of the neighboring cell exceeds the preset threshold, the TTT duration in the neighbor cell mobility parameter is decreased.
  • the base station provided by the embodiment of the present invention is a source base station of the terminal, and corresponds to the embodiment of the cell mobility parameter adjustment method provided by the embodiment of the present invention shown in FIG. 2, which is an execution device of the method embodiment, and the specific execution process thereof may be See the method embodiment for further details.
  • the source base station obtains the source cell of the neighboring cell after the connection failure occurs, and the event information of the neighboring cell recorded by the terminal before the connection failure occurs, so that the source cell
  • the control base station can adjust the mobility parameter of the neighboring cell according to the event information of the neighboring cell and send the mobility parameter to the terminal, thereby improving the accuracy of the mobility parameter adjustment and the switching efficiency of the terminal.
  • FIG. 7 is a flowchart of a cell information reporting method according to an embodiment of the present invention. As shown in FIG. 1, the method includes the following content.
  • the terminal has a connection failure.
  • connection failure of the terminal may be that the terminal generates an RLF in the source cell, or the terminal generates H ⁇ F.
  • the terminal may be a UE, such as a wireless communication device, a handheld device, a cordless phone, or the like.
  • the terminal reestablishes an RRC connection.
  • the terminal may reestablish the RRC connection in the source cell, or may reestablish the RRC connection in the handover target cell, and may also reestablish the RRC connection in the third cell except the source cell and the handover target cell.
  • the terminal sends a cell of the source cell to a control base station that reestablishes the RRC connected cell. And identifying, by the terminal, event information of the source cell that is recorded before the connection failure occurs; or, the terminal sends the cell identifier of the neighboring cell of the source cell to the control base station that reestablishes the RRC connected cell, and the terminal fails to generate the connection.
  • the event information of the neighboring cell that is recorded before, the neighboring cell and the source cell are different frequency cells or different system cells; or the terminal sends the cell identity of the source cell to the control base station of the cell that reestablishes the RRC connection, and the terminal Event information of the source cell recorded before the connection failure occurs, a cell identifier of a neighboring cell of the source cell, and event information of the neighboring cell recorded by the terminal before the connection failure occurs, the neighboring cell and the foregoing
  • the source cell is an inter-frequency cell or a hetero-system cell.
  • the cell for reestablishing the RRC connection may be a handover target cell in which a handover failure occurs, or a source cell, or a third cell other than the source cell and the handover target cell.
  • the event information of the source cell recorded by the terminal before the connection failure occurs may also be referred to as “event information of the source cell", and the terminal records the failure before the connection failure occurs.
  • the event information of the neighboring cell of the source cell inter-frequency or different system may also be referred to as "event information of the neighboring cell”.
  • the control base station of the source cell may also be referred to as a source base station
  • the control base station of the handover target cell may also be referred to as a handover target base station
  • the control base station of the third cell may also be referred to as a third base station.
  • the event information of the source cell may include: initial state information or a signal quality threshold, or a TTT timeout.
  • connection failure of the terminal is RLF
  • the event information of the source cell is: Status information
  • the event information of the source cell is: satisfying the signal quality threshold; or
  • the event information of the source cell is: TTT timeout.
  • the event information of the neighboring cell that is different from the source cell or the different system includes one of the following information: initial state information, a signal quality threshold is met, a TTT timeout, and the terminal receives the handover command.
  • the event information of the neighboring cell is: initial state information; or
  • the event information of the neighboring cell is: The signal quality threshold is met; if the signal quality of the neighboring cell meets the preset signal quality threshold exceeds the preset time before the RLF occurs in the terminal.
  • the duration of the event information of the neighboring cell is: ⁇ Timeout.
  • the connection failure of the terminal is HOF
  • the terminal generates HOF if the terminal has received the handover command sent by the source base station, the phase difference with the source cell or the different system
  • the event information of the neighboring cell is: the terminal receives the handover command;
  • the event information of the neighboring cell is: the terminal has sent the preamble;
  • the event information of the neighboring cell is: the terminal has obtained the preamble response; or, if the HOF occurs at the terminal, the terminal
  • the first scheduled uplink message is sent to the handover target base station, and the event information of the neighboring cell is: the terminal has sent the scheduling message; or, if the HOF occurs in the terminal, the terminal has received the handover target base station returned
  • the conflict resolution indication information the event information of the neighboring cell is: the terminal has received the conflict resolution indication information; or
  • the event information of the neighboring cell is: The terminal has received the configuration preamble information.
  • the inter-frequency or different-system neighboring cells of the source cell in the above embodiments may be one or more.
  • the cell ⁇ is the source cell
  • the adjacent cell of the inter-frequency or different system of the cell A may be one or more of the cell C, the cell D, and the cell E.
  • the cell B, the cell C, the cell D, and the cell E are all different from the frequency of the cell A or the communication system is different, that is, the inter-frequency or inter-system cell of the cell A.
  • the neighboring cells of the cell A are referred to as cell B, cell C, cell D, and cell E.
  • the event information of the source cell recorded by the terminal before the connection failure may be a TTT timeout.
  • the event information of the neighboring cells of the source cell may be a signal quality threshold, an initial state, a handover command received by the terminal, and a TTT timeout.
  • the terminal can transmit the table 2 to the target base station in S703.
  • the cell D terminal receives the handover command.
  • the cell E TTT times out.
  • the event information of the cell A (source cell) recorded before the RLF occurs is a TTT timeout
  • the event information corresponding to the cell B is the signal quality threshold
  • the event information corresponding to the cell C is the initial state.
  • the information that records the event information of the cell D is that the terminal receives the handover command
  • the event information of the recorded cell E is the TTT timeout.
  • Table 2 takes Table 2 as an example to describe the process of the terminal recording the event information of the neighboring cell.
  • the terminal first sets the event information of the source cell and the neighboring cell to the initial state information, and the initialization information may also be referred to as the initialization state of the event information of the source cell and the neighboring cell, for example, the terminal uses one source in Table 2.
  • the event information of the cell and the four neighboring cells are set as initial state information.
  • the event information of the cell C sent by the terminal to the target base station after the RLF occurs It is initial state information, such as event information corresponding to cell C in Table 2.
  • the signal quality threshold may be the A2 threshold, and the cell B satisfies the signal quality threshold.
  • the signal quality threshold may be the A4 threshold.
  • the signal quality threshold may be the B1 threshold.
  • the event information corresponding to the cell B is updated from the initial state information to meet the signal quality threshold.
  • the event information of the cell B that the terminal sends to the target base station after the RLF occurs is the signal quality threshold, for example, the event information corresponding to the cell B in Table 1.
  • the event information corresponding to the cell A can be The initial state information is updated to meet the signal quality threshold. If the signal quality of the cell A meets the preset signal quality threshold for more than the preset TTT duration before the RLF occurs, the event information corresponding to the cell A may be satisfied from the signal quality. Threshold The event information that is updated to the TTT timeout and the cell that is sent to the target base station after the RLF occurs is the TTT timeout, for example, the event information corresponding to the cell A in Table 2.
  • the event information corresponding to the cell D is updated from the initial state information to the signal quality threshold;
  • the HOF has received the handover command sent by the source base station, and the terminal further updates the event information corresponding to the cell D from the satisfying signal quality threshold to the terminal to receive the handover command.
  • the event information of the cell D that is sent by the terminal to the target base station after the terminal generates the HOF is that the terminal receives the handover command, for example, the event information corresponding to the cell D in Table 2.
  • the event information corresponding to the cell E is updated from the initial state to the signal quality threshold; If the signal quality of the cell E has reached the preset signal quality threshold for more than the preset TTT duration, the event information corresponding to the cell E is updated from the met signal quality threshold to the TTT duration.
  • the event information of the cell E sent by the terminal to the target base station after the RLF occurs is the TTT duration, for example, the event information corresponding to the cell E in Table 2.
  • the terminal updates the original event information with the new event information when a new event occurs. Therefore, the event information reported by the terminal to the source cell of the target base station after the RLF or HOF occurs occurs. The most recent event involved in the source cell is reflected, and the event information reported to the neighboring cell of the target base station reflects the most recent event involved in the neighboring cell.
  • the foregoing cell identifier may be a physical ID of the cell, or may be a CGI, or may be a physical ID and a CGL.
  • the event information may be represented by an event identifier, for example, in any form or combination of numbers, letters, and strings. Indicates that each event has a unique event ID. For example, the initial state is represented as "0", the signal quality threshold is expressed as "1”, the TTT timeout is indicated as "2”, and the terminal receives the switching command as "3"; or, the initial state is represented as "00", the signal quality threshold is expressed as "01”, and the terminal receives the switching command as "10".
  • the foregoing terminal may further send one or more of the following parameters that are sent by the source base station to the target base station: a timer T310 for determining whether to generate an RLF, and determining whether to start the timer
  • the number of out-of-synchronization indications N310 is used to determine whether to terminate the synchronization indication number N311 of the timer, the maximum number of times the radio link control layer retransmits, and the maximum number of preamble retransmissions.
  • the source base station and the target base station may be evolved base stations eNB, BS, Node B, AP, and the like.
  • the source base station and the target base station may be a macro base station, a medium base station, or a micro base station, such as a home base station.
  • the terminal when the terminal fails to connect, the terminal reestablishes the RRC connection, and sends the cell identity of the source cell to the control base station that reestablishes the RRC connected cell and the foregoing record recorded by the terminal before the connection failure occurs.
  • Event information of the source cell or, transmitting, to the control base station of the cell that reestablishes the RRC connection, the cell identity of the neighboring cell that is different from the source cell frequency or the communication system, and the event information of the neighboring cell; or
  • the control base station of the cell sends the cell identifier of the source cell and the event information of the source cell, and the cell identifier of the neighboring cell and event information of the neighboring cell, so that the control base station of the cell that reestablishes the RRC connection will be the terminal.
  • the reported information is forwarded to the source base station, so that the source base station can adjust the mobility parameter according to the event experienced by the source cell and/or the event experienced by the neighboring cell of the source cell or the different system, thereby improving mobility.
  • the accuracy of the parameter adjustment and the switching efficiency of the terminal is forwarded to the source base station, so that the source base station can adjust the mobility parameter according to the event experienced by the source cell and/or the event experienced by the neighboring cell of the source cell or the different system, thereby improving mobility.
  • FIG. 8 is a flowchart of a cell mobility parameter adjustment method according to an embodiment of the present invention. As shown in FIG. 8, the method includes the following content.
  • the control base station After the terminal fails to connect and reestablish the RRC connection, the control base station that reestablishes the RRC connected cell receives the information reported by the terminal.
  • the information reported by the terminal includes: a cell identifier of the source cell, and event information of the source cell recorded by the terminal before the connection failure occurs; or: the cell identifier of the neighboring cell of the source cell and the terminal fail to connect The event information of the neighboring cell recorded in the foregoing; or: the cell identifier of the source cell, the event information of the source cell recorded by the terminal before the connection failure occurs, the cell identity of the neighboring cell of the source cell, and the terminal The event information of the foregoing neighboring cell recorded before the connection failure occurs; wherein the neighboring cell and the source cell are an inter-frequency cell or a different-system cell.
  • the cell identifier of the source cell and the event information of the source cell recorded by the terminal before the connection failure occurs are the control base station reported by the terminal to the cell that reestablishes the RRC connection, and the cell identifier and the terminal of the neighboring cell of the source cell are occurring.
  • the event information of the neighboring cell recorded before the connection failure is reported by the terminal to the control base station of the cell that reestablishes the RRC connection.
  • the event information of the source cell received by the control base station that reestablishes the RRC connected cell may include: initial state information or a signal quality threshold, or a trigger time TTT timeout.
  • the terminal fails to connect, and the terminal generates a radio link failure RLF in the source cell, and the shell
  • the event information of the source cell in the information reported by the terminal is: initial state information; or
  • the event information of the source cell in the information reported by the terminal is: satisfying the signal quality threshold
  • the event information of the source cell in the information reported by the terminal is: TTT time out.
  • the event information of the neighboring cell received by the control base station of the RRC connected cell may include: one of the following information: initial state information, a signal quality threshold is met, a trigger time TTT timeout, and the terminal receives the handover command.
  • the terminal fails to connect, and the terminal fails to generate a radio link in the source cell.
  • RLF, B J:
  • the event information of the neighboring cell in the information reported by the terminal is: initial state information; or
  • the event information of the neighboring cell in the information reported by the terminal is: satisfying the signal quality threshold;
  • the event information of the neighboring cell in the information reported by the terminal is : TTT timed out.
  • connection failure of the terminal is caused by the handover failure of the terminal, HOF, and the
  • the terminal When the terminal generates HOF, if the terminal has received the handover command sent by the control base station of the source cell, the event information of the neighboring cell in the information reported by the terminal is: The terminal receives the handover command.
  • the terminal has control to the handover target cell
  • the base station sends the preamble message, and the event information of the neighboring cell in the information reported by the terminal is: the terminal has sent the preamble; or
  • the event information of the neighboring cell in the information reported by the terminal is: the terminal has obtained the preamble response; or ,
  • the terminal has sent the first scheduled uplink message to the control base station of the handover target cell when the terminal generates the HOF, the event information of the neighboring cell in the information reported by the terminal is: The terminal has sent the scheduling message.
  • the terminal has received the conflict resolution indication information returned by the control base station of the handover target cell when the terminal generates the HOF, the event information of the neighboring cell in the information reported by the terminal is: The terminal has received the conflict resolution. Instructions; or,
  • the terminal has received the configuration preamble information sent by the control base station of the handover target cell when the terminal generates the HOF, the event information of the neighboring cell in the information reported by the terminal is: The terminal has received the configuration preamble information.
  • the control base station that reestablishes the RRC connected cell forwards the information reported by the terminal to the control base station of the source cell.
  • the control base station of the RRC-connected cell may forward the information reported by the terminal to the control base station of the source cell, so that the control base station of the source cell can perform events according to the source cell reported by the terminal.
  • the information and/or the events experienced by the neighboring cells of the source cell inter-frequency or different systems are adjusted for mobility parameters, thereby improving the accuracy of the mobility parameter adjustment and the handover efficiency of the terminal.
  • the control base station that reestablishes the RRC-connected cell receives the cell identifier of the source cell that is reported by the terminal, and the event information of the source cell that is recorded by the terminal before the connection failure occurs; or a cell identifier of a neighboring cell with different frequencies or different communication systems and event information of the foregoing neighboring cell; or, a cell identifier of the source cell and event information of the source cell, and a cell identifier of the neighboring cell and a neighboring cell
  • the event information, the control base station that re-establishes the RRC-connected cell may forward the information reported by the terminal to the control base station of the source cell, so that the control base station of the source cell may be based on an event experienced by the source cell and/or an inter-frequency or The events experienced by the neighboring cells of the different system adjust the mobility parameters, thereby improving the accuracy of the mobility parameter adjustment and the switching efficiency of the terminal.
  • the present invention also provides that the control base station of the source cell receives the control of reestablishing the RRC connected cell. After the above information reported by the terminal forwarded by the base station, the mobility parameter of the source cell and/or the mobility parameter of the trusted cell of the source cell or the heterogeneous system are adjusted.
  • the control base station of the source cell may increase the threshold of the signal quality in the mobility parameter of the source cell.
  • the control base station of the source cell can lower the threshold of the signal quality in the mobility parameter of the neighboring cell.
  • the source base station may receive event information of the source cell reported by one or more terminals. Therefore, the source base station may collect the event information of the source cell sent by one or more terminals in a period of time.
  • the event information of the source cell sent by a terminal in a period of time is initial state information, indicating that the source cell does not meet the preset signal quality threshold for a period of time, that is, no event occurs, or if multiple terminals are in a period of time
  • the source base station may appropriately adjust the relevant parameters of the signal quality threshold preset by the source cell to improve the signal quality threshold of the source cell;
  • the event information of the source cell is mostly the signal quality threshold.
  • the event information of a neighboring cell that is reported by multiple terminals and is not the same as the frequency of the source cell or the communication system is different is the initial state information.
  • the signal quality threshold of the neighboring cell may be set too high. Therefore, the source base station may appropriately adjust related parameters of the signal quality threshold preset by the neighboring cell to lower the signal quality threshold of the neighboring cell.
  • the above is only a specific example of adjusting the mobile performance parameters of the source cell by the source base station, but it is not intended to be a limitation of the present invention.
  • the source base station can adjust the mobile performance parameter of the source cell according to the event information of the source cell reported by one terminal or multiple terminals in a period of time, so as to more accurately adjust the mobile performance parameter of the source cell, thereby improving the handover of the terminal. effectiveness.
  • the above is only two specific examples of adjusting the mobile performance parameters of the source cell by the source base station, and/or adjusting the mobility performance parameters of the neighboring cells different from the source cell frequency or the communication system, but not as the present invention. limit.
  • the control base station that reestablishes the RRC-connected cell receives the cell identifier of the source cell that is reported by the terminal, and the event information of the source cell that is recorded by the terminal before the connection failure occurs; or Adjacent small frequencies with different frequencies or different communication systems
  • the control base station may forward the foregoing information reported by the terminal to the control base station of the source cell, so that the control base station of the source cell may adjust the mobility parameter of the source cell according to the event experienced by the source cell, and may also be based on the event experienced by the source cell.
  • the event experienced by the neighboring cell of the source cell or the different system performs the adjustment of the mobility parameter on the neighboring cell, thereby improving the accuracy of the mobility parameter
  • FIG. 9 a scenario in which the terminal generates an RLF with the source base station before receiving the handover command sent by the source base station is taken as an example, and the embodiments provided in FIG. 7 and FIG. 8 are further described in detail.
  • the source cell is used as the cell 1 as an example, and the terminal sends the cell identity of the source cell and the event information of the source cell to the control base station of the cell that reestablishes the RRC connection, so that the source base station adjusts the cell according to the event information corresponding to the cell 1.
  • the specific process of the mobility parameter of 1. This embodiment specifically includes the following contents.
  • the terminal receives the first measurement configuration information sent by the source base station, and performs measurement on the source cell (ie, the current serving cell) and the neighboring cell in the same frequency as the source cell according to the first measurement configuration information.
  • the source cell ie, the current serving cell
  • the terminal receives the first measurement configuration information that is sent by the source base station, where the first measurement configuration information indicates that the terminal performs signal quality measurement on the source cell and the same-frequency neighboring cell, where the first measurement configuration information includes the source cell and the neighboring cell.
  • Mobility parameters may include: a signal quality threshold, for example: A2 threshold, and the A2 threshold is a signal quality threshold, specifically a threshold for reporting a report event defined in the 3GPP 36.331 standard protocol.
  • the signal quality may be RSRP, or RSRQ.
  • the mobility parameter may also include: TTT duration. If the signal quality of the source cell satisfies the preset signal quality threshold within the TTT duration, the terminal reports the measurement report to the source base station.
  • S902 The terminal measures that the signal quality of the cell 1 meets the preset signal quality threshold, and updates the event information corresponding to the cell identifier of the cell 1 from the initial state information to the signal quality threshold.
  • the preset signal quality threshold is a preset threshold indicated in the first measurement configuration information delivered by the source base station, for example, an A2 threshold.
  • the initial event information corresponding to the cell identifier of the default cell 1 is initial state information.
  • the terminal updates the event information corresponding to the cell identifier of the cell 1 from the initial state information to the signal quality threshold.
  • the terminal measures that the signal quality of the cell 1 has met the preset signal quality threshold for more than the preset TTT duration, and updates the event information corresponding to the cell identifier of the cell 1 to the TTT timeout, and reports the measurement. report.
  • the base station sends the second measurement configuration information to the terminal, where the second measurement configuration information includes a measurement gap (GAP) for performing the inter-frequency or different system frequency point measurement, and the mobility of the inter-frequency or different system frequency points. parameter.
  • GAP measurement gap
  • the terminal performs measurement on the neighboring cell of the inter-frequency or the different system according to the second measurement configuration information in S904, but when the neighboring cell of the inter-frequency or different system does not meet the measurement condition, the terminal generates the RLF in the cell 1, The terminal reestablishes the RRC connection, and the terminal reports the cell identifier of the cell 1 and the event information corresponding to the cell 1 to the control base station of the cell that reestablishes the RRC connection.
  • the terminal may carry the cell identifier of the cell 1 and the event information corresponding to the cell 1 in the RLF report and report the message to the control base station of the cell that reestablishes the RRC connection.
  • the RRC-connected cell may be a source cell or a source cell. In this embodiment, the scenario in which the RRC-connected cell is not the source cell, and the RRC-connected cell and the source cell do not belong to the same base station are used as an example. .
  • the implementation scenario provided in this embodiment is as follows: The signal quality of the cell 1 meets the set threshold exceeds the preset TTT duration, and the terminal generates the RLF in the source base station. At this time, the event information corresponding to the cell 1 is the TTT timeout identifier. Next, the event information of the cell 1 reported by the terminal to the control base station that reestablishes the RRC connected cell in the S905 is a TTT timeout.
  • the terminal performs the RLF in the source cell, that is, the S905 is directly executed after the S901, and the event information corresponding to the cell 1 is still the initial state. information.
  • the event information of the cell 1 reported by the terminal to the control base station of the cell that reestablishes the RRC connection is the initial state information. If the cell 1 meets the signal quality threshold, but the terminal does not time out, the terminal generates RLF in the source cell, that is, S902 is directly executed after S902. At this time, the event information corresponding to the cell 1 still satisfies the signal quality threshold.
  • the terminal may also report one or more of the following information sent by the source base station to the control base station that re-establishes the RRC-connected cell: T310 (specifically, a timer for determining whether to generate RLF), and N310 (the number of consecutively reporting Qout) , wherein Qout is a signal quality threshold for determining whether an out-of-synchronization occurs, RLC retransmission maximum retransmission times, RACH preamble maximum retransmission times, etc., to assist the source base station to adjust the mobile performance parameters of the neighboring cells. 5906.
  • the control base station that reestablishes the RRC connected cell forwards the cell identifier of the cell 1 reported by the terminal and the event information corresponding to the cell 1 to the source base station.
  • the source base station adjusts the mobility parameter of the cell 1 according to the event information corresponding to the cell 1. For example, if the event information of the source cell is that the number of initial state information exceeds a preset threshold, the threshold of the signal quality in the mobility parameter of the source cell is increased.
  • the method for adjusting the mobility parameter of the cell 1 in S907 can also refer to the details in the embodiment shown in FIG. 8, and details are not described herein again.
  • the terminal when the terminal generates the RLF, the terminal reestablishes the RRC connection, and sends the cell identity of the source cell and the event of the source cell recorded by the terminal before the RLF occurs to the control base station that reestablishes the RRC connected cell. information.
  • the control base station of the cell that reestablishes the RRC connection forwards the cell identifier of the source cell and the event information of the source cell recorded by the terminal before the RLF loss occurs to the source base station, so that the source base station can experience according to the source cell. Event, adjust the mobility parameter of the source cell and send it to the terminal. In turn, the accuracy of the mobility parameter adjustment and the switching efficiency of the terminal are improved.
  • the source base station can directly obtain the cell identifier of the source cell and event information of the source cell recorded by the terminal before the connection failure occurs, and perform phase-to-phase The adjustment of the movement parameters of the neighboring cell.
  • FIG. 10 a scenario in which the terminal generates an RLF at the source base station before receiving the handover command sent by the source base station is taken as an example, and the embodiments provided in FIG. 7 and FIG. 8 are further described in detail.
  • a neighboring cell 2 of the source cell is taken as an example, and the terminal sends a cell identifier of the cell 2 and event information of the cell 2 to the control base station of the cell that reestablishes the RRC connection, so that the source base station corresponds to the cell 2 according to the cell 2
  • the event information adjusts the specific process of the mobility parameter of the cell 2.
  • the cell 2 is a small area that is different from the source cell or different system. This embodiment specifically includes the following contents.
  • the terminal receives the first measurement configuration information sent by the source base station, and performs measurement on the source cell (ie, the current serving cell) and the neighboring cell in the same frequency as the source cell according to the first measurement configuration information.
  • the source cell ie, the current serving cell
  • the terminal receives the first measurement configuration information that is sent by the source base station, where the first measurement configuration information indicates that the terminal performs signal quality measurement on the source cell and the neighboring cell, where the first measurement configuration information includes the movement of the source cell and the neighboring cell.
  • sexual parameters wherein the adjacent measurement in the first measurement configuration information
  • the mobility parameter of the zone is the mobility parameter of the neighboring cell of the same frequency as the source cell.
  • the foregoing adjacent cells may be one or plural.
  • the mobility parameter may include: a signal quality threshold, for example: For a neighboring cell having the same frequency as the source cell and the same communication system, the signal quality threshold may be an A3 threshold, and the A3 threshold is a signal quality threshold, specifically 3GPP. 36.331 A threshold for reporting events reported by a measurement report as defined in the standard protocol.
  • the signal quality can be RSRP, or RSRQ.
  • the mobility parameter may further include: a TTT duration, if the signal quality of the neighboring cell meets the preset signal quality threshold exceeds the TTT duration, the terminal reports the measurement to the source base station. report.
  • the neighboring cell is used as the cell 2 as an example. In fact, there may be multiple neighbor cells for measurement by the terminal.
  • the terminal measures that the signal quality of the source cell meets a preset signal quality threshold, and the terminal reports that the source cell satisfies the signal quality event.
  • the signal quality threshold of the source cell may be, for example: an A2 event.
  • the terminal detects that the signal quality of the source cell has met the preset signal quality threshold for more than a preset TTT duration, and updates the event information corresponding to the cell identifier of the source cell to a TTT timeout and satisfies the measurement. report.
  • the terminal receives the second measurement configuration message sent by the source base station, and performs measurement on the cell 2 according to the second measurement configuration message, where the second measurement configuration message includes a time gap (GAP) for performing the inter-frequency or different system frequency point measurement. ), and the mobility parameters of the different frequency or different system frequency points.
  • GAP time gap
  • the source base station may carry the time gap of the inter-frequency or different-system frequency point measurement and the mobility parameter of the inter-frequency or different-system frequency point in the second measurement configuration message, and send the parameter to the terminal for the terminal measurement to be different from the source cell. Or neighboring cells of a different system.
  • the mobility parameter of the inter-frequency or different-system frequency point included in the second measurement configuration information that is sent by the source base station may include a signal quality threshold, for example: for a neighboring cell different from the source cell frequency, the signal quality The threshold may be the A4 threshold; for neighboring cells different from the source cell communication system, the signal quality threshold may be the B1 threshold.
  • the triggering terminal measures the signal of the cell 2 that is different from the source cell frequency or the communication system is different. Quality, if the signal quality of the source cell does not meet the preset signal quality threshold, the terminal does not perform the signal quality measurement operation of the cell 2.
  • the terminal measures the signal quality of the cell 2 to meet the preset signal quality threshold, and updates the event information corresponding to the cell identifier of the cell 2 from the initial state information to the signal quality threshold.
  • the signal quality threshold may be an A4 threshold. If the cell 2 is an inter-system cell with the source cell, the signal quality threshold may be a B1 threshold.
  • the preset signal quality threshold is a preset threshold indicated in the measurement configuration information delivered by the source base station.
  • the initial value of the event information corresponding to the cell identifier of the default cell 2 is initial state information.
  • the terminal updates the event information corresponding to the cell identity of the cell 2 from the initial state information to the signal quality threshold.
  • the terminal updates the event information corresponding to the cell identifier of each neighboring cell to the signal quality threshold.
  • the terminal reports the measurement report of the cell 2 to the source base station.
  • the terminal If the RLF occurs in the source cell, the terminal reestablishes the RRC connection, and the terminal reports the cell identifier of the cell 2 and the event information corresponding to the cell 2 to the control base station of the cell that reestablishes the RRC connection.
  • the terminal may carry the cell identifier of the cell 2 and the event information corresponding to the cell 2 in the RLF report to the control base station of the cell that reestablishes the RRC connection.
  • the RRC-connected cell may be a source cell or a source cell. In this embodiment, the scenario in which the RRC-connected cell is not the source cell, and the RRC-connected cell and the source cell do not belong to the same base station are used as an example. .
  • the scenario in this embodiment is that the signal quality of the cell 2 satisfies the preset signal quality threshold, that is, the event information corresponding to the cell 2 has been updated to meet the signal quality threshold, and the terminal generates the RLF in the source cell. Therefore, in S1006 of this embodiment, the event information of the cell 2 reported by the terminal to the control base station of the cell in which the RRC connection is reestablished is a signal quality threshold.
  • the terminal performs the RLF in the source cell, that is, the S1007 is directly executed after the S1002, and the event information corresponding to the cell 2 is still the initial state. information.
  • the terminal in S1007 The event information of the cell 2 reported to the control base station of the cell that reestablishes the RRC connection is initial state information. If the signal quality of the cell 2 meets the preset signal quality threshold and exceeds the set duration TTT duration, the terminal generates RLF in the source cell, and the event information of the cell 2 reported by the terminal to the control base station of the cell that reestablishes the RRC connection is the TTT duration.
  • the terminal may also report one or more of the following information sent by the source base station to the control base station that re-establishes the RRC-connected cell: T310 (specifically, a timer for determining whether to generate RLF), and N310 (the number of consecutively reporting Qout) , wherein Qout is a signal quality threshold for determining whether an out-of-synchronization occurs, RLC retransmission maximum retransmission times, RACH preamble maximum retransmission times, etc., to assist the source base station to adjust the mobile performance parameters of the neighboring cells.
  • T310 specifically, a timer for determining whether to generate RLF
  • N310 the number of consecutively reporting Qout
  • Qout is a signal quality threshold for determining whether an out-of-synchronization occurs, RLC retransmission maximum retransmission times, RACH preamble maximum retransmission times, etc.
  • the control base station that reestablishes the RRC connected cell forwards the cell identifier of the cell 2 reported by the terminal and the event information corresponding to the cell 2 to the source base station.
  • the source base station adjusts mobility parameter of the cell 2 according to event information corresponding to the source cell and the cell 2.
  • the terminal when the terminal generates the RLF, the terminal reestablishes the RRC connection, and sends the cell identifier of the neighboring cell of the inter-frequency or different system of the source cell to the control base station that reestablishes the RRC connected cell, and the terminal Event information of the foregoing neighboring cells recorded before the RLF occurs.
  • the control base station of the cell that reestablishes the RRC connection forwards the cell identifier of the neighboring cell and the event information of the neighboring cell to the source base station, so that the source base station can experience according to the event experienced by the source cell and the neighboring cell.
  • the event adjusts the mobility parameters of the neighboring cells and sends them to the terminal.
  • the accuracy of the mobility parameter adjustment and the switching efficiency of the terminal are improved. It should be noted that, if the RRC-connected cell and the source cell belong to the same base station, the source base station can directly obtain the cell identity of the neighboring cell that is different from the source cell frequency or the communication system, and the terminal fails before the connection failure occurs. The event information of the neighboring cell is recorded, and the motion parameter adjustment of the neighboring cell is performed.
  • FIG. 11 is a schematic structural diagram of a terminal according to an embodiment of the present invention. As shown in FIG. 11, the terminal 70 includes: a detecting unit 11, a reconstructing unit 12, and a sending unit 13.
  • the detecting unit 11 is configured to detect that the terminal has failed to connect; the re-establishing unit 12 is configured to re-establish a radio resource control RRC connection when the detecting unit detects that the terminal fails to connect, and the sending unit 13 is configured to re-establish the RRC.
  • Control base station of connected cell Transmitting a cell identifier of the source cell and event information of the source cell recorded by the terminal before the connection failure occurs; or transmitting a cell identifier of the neighboring cell of the source cell to the control base station reestablishing the RRC connected cell and the
  • the event information of the neighboring cell recorded by the terminal before the connection failure occurs, the neighboring cell and the source cell are different frequency cells or different system cells; or, send to the control base station of the cell that reestablishes the RRC connection a cell identifier of the source cell, event information of the source cell recorded by the terminal before the connection failure occurs, a cell identifier of a neighboring cell of the source cell, and a record recorded by the terminal before the connection failure occurs.
  • the event information of the neighboring cell, the neighboring cell and the source cell are inter-frequency cells or different system cells.
  • the event information of the source cell sent by the sending unit 13 includes: initial state information, a signal quality threshold, or a TTT timeout.
  • the event information of the neighboring cell sent by the sending unit 13 includes one of the following information: initial state information, a signal quality threshold, a TTT timeout, and a handover command received by the terminal.
  • connection failure detected by the detecting unit 11 is that the terminal generates RLF in the source cell, then:
  • the event information of the source cell sent by the sending unit 13 is: initial state information
  • the event information of the source cell sent by the sending unit 13 is: satisfying the signal quality threshold
  • the event information of the source cell sent by the sending unit 13 is: TTT timeout .
  • connection failure detected by the detecting unit 11 is that the terminal generates RLF in the source area
  • the event information of the neighboring cell sent by the sending unit 13 is: initial state information
  • the event information of the neighboring cell sent by the sending unit 13 is: satisfying the signal quality threshold; or (3) If the signal quality of the source cell satisfies a preset signal quality threshold before the RLF occurs in the terminal, and the signal quality of the neighboring cell has met the preset signal quality threshold for more than a preset TTT duration, Then, the event information of the neighboring cell sent by the sending unit 13 is: TTT timeout.
  • connection failure detected by the detecting unit 11 is a handover failure HOF of the above terminal, then:
  • the event information of the neighboring cell sent by the sending unit 13 is: the terminal receives the handover command; or
  • the terminal If the terminal detects that the terminal has generated the HOF, the terminal has sent a preamble message to the control base station of the handover target cell, and the event information of the neighboring cell sent by the sending unit 13 is: the terminal has sent the preamble Or,
  • the event information of the neighboring cell sent by the sending unit 13 is: Get the leading response; or,
  • the terminal has sent the first scheduled uplink message to the control base station of the handover target cell, and the event information of the neighboring cell sent by the sending unit 13 is :
  • the terminal has sent a scheduling message; or,
  • the detection unit 11 detects that the terminal has generated the HOF, and the terminal has received the conflict resolution indication information returned by the control base station of the handover target cell, the event information of the neighboring cell sent by the sending unit 13 is: The terminal has received the conflict resolution indication message; or,
  • the sending unit 13 is further configured to: send, to the control base station of the target cell, one or more of the following parameters sent by the control base station of the source cell: a timer for determining whether to generate an RLF, Determining whether to start the number of out-of-synchronization indications of the timer, determining whether to terminate the synchronization indication of the timer, the maximum number of times the radio link control layer retransmits, and the maximum number of preamble retransmissions.
  • the foregoing terminal provided in this embodiment can implement the operation content of the terminal in the method embodiment shown in FIG. 7-10, and details are not described herein again.
  • the terminal provided by the embodiment of the present invention reestablishes an RRC connection when a connection failure occurs, and sends a cell identifier of the source cell to the control base station of the cell that reestablishes the RRC connection, and event information of the source cell recorded by the terminal before the connection failure occurs.
  • the control base station of the cell that reestablishes the RRC connection transmitting, to the control base station of the cell that reestablishes the RRC connection, the cell identity of the neighboring cell that is different from the source cell frequency or the communication system, and event information of the neighboring cell; or sending the control base station of the cell that reestablishes the RRC connection
  • the source cell sends the cell identifier of the source cell and the event information of the source cell, and the cell identifier of the neighboring cell and the event information of the neighboring cell, so that the control base station of the reestablished RRC connected cell forwards the information reported by the terminal.
  • the source base station is further configured to enable the source base station to adjust the mobility parameter according to an event experienced by the source cell and/or an event experienced by the neighboring cell of the source cell or the adjacent system, thereby improving the accuracy of the mobility parameter adjustment. And the switching efficiency of the terminal.
  • FIG. 12 is a schematic structural diagram of a base station according to an embodiment of the present invention. As shown in FIG. 12, the base station 80 includes: a receiving unit 21 and a forwarding unit 22.
  • the receiving unit 21 is configured to: after receiving the connection failure and reestablishing the RRC connection, the terminal receives the information reported by the terminal; the forwarding unit 22 is configured to forward, to the control base station of the source cell, the information reported by the terminal received by the receiving unit.
  • the information reported by the terminal includes: a cell identifier of the source cell, and event information of the source cell recorded by the terminal before the connection failure occurs; or: the cell identifier of the neighboring cell of the source cell and the terminal are connected.
  • the event information of the neighboring cell recorded before the failure or: the cell identifier of the source cell, the event information of the source cell recorded by the terminal before the connection failure occurs, the cell identifier of the neighboring cell of the source cell, and The event information of the foregoing neighboring cell recorded by the terminal before the connection failure occurs; wherein the foregoing neighboring cell and the source cell are an inter-frequency cell or a different-system cell.
  • the event information of the source cell acquired by the receiving unit 21 includes: initial state information, a signal quality threshold, or a TTT timeout.
  • the event information of the neighboring cell acquired by the receiving unit 21 includes one of the following information: initial state information, a signal quality threshold, a TTT timeout, and a handover command received by the terminal.
  • the event information of the source cell received by the receiving unit 21 is: Initial state information; or,
  • the event information of the source cell received by the receiving unit 21 is: satisfying a signal quality threshold;
  • the event information of the source cell received by the receiving unit 21 is : TTT timed out.
  • the event information of the neighboring cell received by the receiving unit 21 is: initial state information; or
  • the event information of the neighboring cell received by the receiving unit 21 is: meeting the signal quality threshold
  • the terminal When the terminal generates HOF, if the terminal has received the handover command sent by the control base station of the source cell, the event information of the neighboring cell received by the receiving unit 21 is: The terminal receives the handover command.
  • the event information of the neighboring cell received by the receiving unit 21 is: the terminal has sent a preamble; or
  • the event information of the neighboring cell received by the receiving unit 21 is: The terminal has acquired the preamble response.
  • the event information of the neighboring cell received by the receiving unit 21 is: the terminal has sent Scheduling messages; or, (5) If the terminal has received the conflict resolution indication information returned by the control base station of the handover target cell when the terminal generates the HOF, the event information of the neighboring cell received by the receiving unit 21 is: the terminal has received Conflict resolution indication information; or,
  • the terminal has received the configuration preamble information sent by the control base station of the handover target cell when the terminal generates the HOF
  • the event information of the neighboring cell received by the receiving unit 21 is: the terminal has received Configure the preamble information.
  • the base station provided by the embodiment of the present invention is a source base station of the terminal, and corresponds to the embodiment of the cell mobility parameter adjustment method provided by the embodiment of the present invention shown in FIG. 8 , which is an execution device of the method embodiment, and the specific execution process thereof may be See the method embodiment for further details.
  • the control base station that reestablishes the RRC-connected cell receives the cell identifier of the source cell that is reported by the terminal, and the event information of the source cell that is recorded by the terminal before the connection failure occurs; or a cell identifier of a neighboring cell with different frequencies or different communication systems and event information of the foregoing neighboring cell; or, a cell identifier of the source cell and event information of the source cell, and a cell identifier of the neighboring cell and a neighboring cell
  • the event information, the control base station that re-establishes the RRC-connected cell may forward the information reported by the terminal to the control base station of the source cell, and further enable the control base station of the source cell to adjust the mobility parameter of the source cell according to the event experienced by the source cell.
  • the mobility parameter can also be adjusted according to the event experienced by the source cell and the event experienced by the neighboring cell of the source cell or the neighboring cell of the different system, thereby improving the accuracy of the mobility

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Abstract

小区信息上报和小区移动性参数调整的方法及设备。小区信息上报的方法包括终端发生连接失败（S101）；该终端重建无线资源控制RRC连接（S102）；该终端向重建RRC连接的小区的控制基站发送源小区的相邻小区的小区标识和所述终端在发生所述连接失败前记录的所述相邻小区的事件信息（S103）。本发明实施例提供技术方案可以帮助网络侧提高移动性参数调整的准确度，进而提高终端的切换效率。

Description

小区信息上报和小区移动性参数调整的方法及设备
本申请要求于 2011 年 7 月 15 日提交中国专利局、 申请号为 201110199209.1、 发明名称为"小区信息上报和小区移动性参数调整的方法 及设备 "的中国专利申请， 以及于 2012年 5月 16日提交中国专利局、 申请 号为 201210151979.3、 发明名称为"小区信息上报和小区移动性参数调整的 方法及设备"的中国专利申请的优先权， 其全部内容通过引用结合在本申请 中。 技术领域
本发明涉及通信技术领域， 特别涉及小区信息上报和小区移动性参数 调整的方法及设备。 背景技术 在第 3代合作伙伴计划 ( The 3rd Generation Partnership Project, 3GPP ) 的长期演进（Long Term Evolution, LTE ) ***中， 终端的源小区 的控制基站， 即源演进基站（evolved NodeB, eNB ), 向终端下发测量配 置信息， 指示终端对源小区及源小区的相邻小区的信号质量进行测量， 终 端在相邻小区信号质量满足切换条件时，将测量结果上报给源 eNB,源 eNB 根据终端上报的测量报告决定是否执行切换。 上述测量配置信息中的相邻 小区的移动性参数直接影响终端上报的测量结果， 进而影响切换的成功率。 现有技术中源 eNB对相邻小区的移动性参数的调整不准确， 进而影响 终端的切换效率。 发明内容 本发明一方面提供一种小区信息上报方法， 包括： 终端发生连接失败； 上述终端重建无线资源控制 RRC连接； 上述终端向重建 RRC连接的小区 的控制基站发送源小区的相邻小区的小区标识和上述终端在发生上述连接 失败前记录的上述相邻小区的事件信息。
本发明另一方面还提供另一种小区移动性参数调整方法， 包括： 源小 区的控制基站获取终端在发生连接失败后上报的上述源小区的相邻小区的 小区标识和终端在发生连接失败前记录的上述相邻小区的事件信息； 上述 源小区的控制基站根据上述终端在发生上述连接失败前记录的上述相邻小 区的事件信息， 调整上述相邻小区的移动性参数。
本发明再一方面提供一种终端， 包括： 检测单元， 用于检测终端发生 连接失败； 重建单元， 用于在上述检测单元检测到上述终端发生连接失败 时， 重建无线资源控制 RRC连接； 和发送单元， 用于向重建 RRC连接的 小区的控制基站发送源小区的相邻小区的小区标识和上述终端在发生上述 连接失败前记录的上述相邻小区的事件信息。
本发明再一方面还提供一种基站， 包括： 获取单元， 用于获取终端在 发生连接失败后上报的上述源小区的相邻小区的小区标识和终端在发生连 接失败前记录的上述相邻小区的事件信息； 调整单元， 用于根据上述获取 单元获取的上述终端在发生上述连接失败前记录的上述相邻小区的事件信 息， 调整上述相邻小区的移动性参数； 和发送单元， 用于将上述调整单元 调整后的上述相邻小区的移动性参数发送给上述终端。
在上述技术方案中， 当终端发生连接失败时， 该终端重建无线资源控 制 RRC连接， 并向重建 RRC连接的小区的控制基站发送源小区的相邻小 区的小区标识和该终端在发生上述连接失败前记录的上述相邻小区的事件 信息。以使该重建 RRC连接的小区的控制基站将上述源小区的相邻小区的 小区标识和该终端在发生上述连接失败前记录的上述相邻小区的事件信息 转发给源小区的控制基站， 进而使该源小区的控制基站可以根据相邻小区 经历的事件， 调整上述相邻小区的移动性参数并发送给终端。 进而提高移 动性参数调整的准确度和终端的切换效率。 需要说明的是， 如果重建 RRC 连接的小区和源小区属于同一基站， 即源基站可直接获得上述源小区的相 邻小区的小区标识和该终端在发生上述连接失败前记录的上述相邻小区的 事件信息， 并进行相邻小区的移动参数调整。
本发明一方面提供一种小区信息上报方法， 包括： 终端发生连接失败； 上述终端重建无线资源控制 RRC连接； 上述终端向重建 RRC连接的小区 的控制基站发送源小区的小区标识和上述终端在发生上述连接失败前记录 的上述源小区的事件信息； 或者， 上述终端向重建 RRC连接的小区的控制 基站发送上述源小区的相邻小区的小区标识和上述终端在发生上述连接失 败前记录的上述相邻小区的事件信息， 上述相邻小区和上述源小区是异频 小区或异***小区； 或者， 上述终端向重建 RRC连接的小区的控制基站发 送源小区的小区标识、 上述终端在发生上述连接失败前记录的上述源小区 的事件信息、 上述源小区的相邻小区的小区标识和上述终端在发生上述连 接失败前记录的上述相邻小区的事件信息， 上述相邻小区和上述源小区是 异频小区或异***小区。
本发明另一方面还提供另一种小区移动性参数调整方法， 包括： 在终 端在发生连接失败并重建 RRC连接后， 重建 RRC连接的小区的控制基站 接收上述终端上报的信息；上述重建 RRC连接的小区的控制基站向源小区 的控制基站转发上述终端上报的信息； 上述终端上报的信息包括： 上述源 小区的小区标识和上述终端在发生上述连接失败前记录的上述源小区的事 件信息； 或者包括： 上述源小区的相邻小区的小区标识和终端在发生连接 失败前记录的上述相邻小区的事件信息； 或者包括： 上述源小区的小区标 识、 上述终端在发生上述连接失败前记录的上述源小区的事件信息、 上述 源小区的相邻小区的小区标识和终端在发生连接失败前记录的上述相邻小 区的事件信息； 其中， 上述相邻小区和上述源小区是异频小区或异***小 区。
本发明再一方面提供一种终端， 包括： 检测单元， 用于检测终端发生 连接失败； 重建单元， 用于在上述检测单元检测到上述终端发生连接失败 时， 重建无线资源控制 RRC连接； 发送单元， 用于向重建 RRC连接的小 区的控制基站发送源小区的小区标识和上述终端在发生上述连接失败前记 录的上述源小区的事件信息； 或者， 向重建 RRC连接的小区的控制基站发 送上述源小区的相邻小区的小区标识和上述终端在发生上述连接失败前记 录的上述相邻小区的事件信息， 上述相邻小区和上述源小区是异频小区或 异***小区； 或者， 向重建 RRC连接的小区的控制基站发送源小区的小区 标识、 上述终端在发生上述连接失败前记录的上述源小区的事件信息、 上 述源小区的相邻小区的小区标识和上述终端在发生上述连接失败前记录的 上述相邻小区的事件信息， 上述相邻小区和上述源小区是异频小区或异系 统小区。 本发明再一方面还提供一种基站， 包括： 接收单元， 用于在终端在发 生连接失败并重建 RRC连接后， 接收终端上报的信息； 转发单元， 用于向 源小区的控制基站转发上述接收单元接收到的上述终端上报的信息； 上述 终端上报的信息包括： 上述源小区的小区标识和上述终端在发生上述连接 失败前记录的上述源小区的事件信息； 或者包括： 上述源小区的相邻小区 的小区标识和终端在发生连接失败前记录的上述相邻小区的事件信息； 或 者包括： 上述源小区的小区标识、 上述终端在发生上述连接失败前记录的 上述源小区的事件信息、 上述源小区的相邻小区的小区标识和终端在发生 连接失败前记录的上述相邻小区的事件信息； 其中， 上述相邻小区和上述 源小区是异频小区或异***小区。
在上述技术方案中， 当终端发生连接失败时， 该终端重建无线资源控 制 RRC连接， 并向重建 RRC连接的小区的控制基站发送源小区的小区标 识和该终端在发生上述连接失败前记录的上述源小区的事件信息； 或者， 向重建 RRC 连接的小区的控制基站发送与源小区频率不同或通信***不 同的相邻小区的小区标识和上述相邻小区的事件信息； 或者， 向重建 RRC 连接的小区的控制基站发送源小区的小区标识和上述源小区的事件信息， 以及上述相邻小区的小区标识和相邻小区的事件信息，以使该重建 RRC连 接的小区的控制基站将终端上报的上述信息转发给源小区的控制基站， 进 而使该源小区的控制基站可以根据源小区经历的事件和 /或与源小区异频或 异***的相邻小区经历的事件进行移动性参数的调整， 从而提高移动性参 数调整的准确度和终端的切换效率。 附图说明 为了更清楚地说明本发明实施例的技术方案， 下面将对本发明实施例 中所需要使用的附图作一筒单地介绍， 显而易见地， 下面描述中的附图是 本发明的一些实施例， 对于本领域普通技术人员来讲， 在不付出创造性劳 动性的前提下， 还可以根据这些附图获得其他的附图。
图 1为本发明一实施例提供的小区信息上报的方法的流程示意图； 图 2为本发明一实施例提供的小区移动性参数调整方法的流程示意图； 图 3为本发明另一实施例提供的方法的流程示意图； 图 4为本发明又一实施例提供的方法的流程示意图；
图 5为本发明一实施例提供的终端的结构示意图；
图 6为本发明一实施例提供的基站的结构示意图；
图 7为本发明一实施例提供的小区信息上报方法的流程图；
图 8为本发明一实施例提供的小区移动性参数调整方法的流程图； 图 9为本发明另一实施例提供的方法的流程示意图；
图 10为本发明又一实施例提供的方法的流程示意图；
图 11为本发明一实施例提供的终端的结构示意图；
图 12为本发明一实施例提供的基站的结构示意图。 具体实施方式 下面将结合本发明实施例中的附图， 对本发明实施例中的技术方案进 行清楚、 完整地描述， 显然， 下文所描述的实施例是本发明一部分实施例， 而不是全部的实施例。 基于本发明中的实施例， 本领域普通技术人员在没 有作出创造性劳动前提下所获得的所有其他实施例， 都属于本发明保护的 范围。
图 1为本发明提供的小区信息上报方法一个实施例的流程图， 如图 1所 示， 该方法包括以下内容。
5101 , 终端发生连接失败（ connection failure )。
可选地， 上述终端发生的连接失败可以是终端在源小区发生无线链路 失败（ Radio Link Failure, RLF ), 也可以是终端发生切换失败（ Handover Failure, H〇F )。
在本发明各实施例中， 终端 （ terminal ) 可以为用户设备 （ user equipment, UE ), 例如： 无线通信设备， 手持设备（ handheld ), 无绳电 话 ( cordless phone )等。
5102, 该终端重建无线资源控制（ Radio Resource Control, RRC )连 接。
在本实施例中， 终端可以在源小区重建 RRC连接， 也可以在发生切换 失败的切换目标小区重建 RRC连接， 还可以在除上述源小区和上述切换目 标小区之外的第三小区重建 RRC连接。 S103, 该终端向重建 RRC连接的小区的控制基站发送源小区的相邻小 区的小区标识和该终端在发生上述连接失败前记录的该相邻小区的事件信 上述重建 RRC连接的小区可以是发生切换失败的切换目标小区、 或源 小区、 或除上述源小区和上述切换目标小区之外的第三小区。
为方便描述起见， 后续实施例中将 "终端在发生上述连接失败前记录 的该相邻小区的事件信息" 也可称为 "相邻小区的事件信息" ， 源小区的 控制基站也可称为源基站， 切换目标小区的控制基站也可称为切换目标基 站， 第三小区的控制基站也可称为第三基站。
可选地， 上述相邻小区的事件信息包括以下信息之一： 初始状态信息、 满足信号质量门限、 触发时间 （Time to Trigger, TTT )超时、 终端接收到 切换命令。
作为一个可选实施例， 若终端发生的连接失败为 RLF, 那么： 如果在该终端发生 RLF前， 源小区的相邻小区的信号质量未满足预设 的信号质量门限， 则该相邻小区的事件信息为： 初始状态信息； 或者， 如果在该终端发生 RLF前， 源小区的相邻小区的信号质量满足预设的 信号质量门限， 且 TTT未超时， 则所述相邻小区的事件信息为： 满足信号 质量门限； 或者，
如果在该终端发生 RLF前， 源小区的相邻小区的信号质量满足预设的 信号质量门限的时间超过预设的 TTT时长，则所述相邻小区的事件信息为： TTT超时。
作为另一个可选实施例， 若终端发生的连接失败为 HOF, 那么在该终 端发生 HOF时， 如果该终端已接收到源基站发送的切换命令， 则上述相邻 小区的事件信息为： 终端接收到切换命令；
或者， 如果在该终端发生 HOF时， 该终端已向切换目标基站发送前导 消息， 则上述相邻小区的事件信息为： 终端已发送前导； 或者，
如果在该终端发生 HOF时，该终端已接收到切换目标基站返回的前导 响应消息， 则上述相邻小区的事件信息为： 终端已获取前导响应； 或者， 如果在该终端发生 HOF时，该终端已向切换目标基站发送第一条调度 的上行消息， 则上述相邻小区的事件信息为： 终端已发送调度消息； 或者， 如果在该终端发生 HOF时，该终端已接收到切换目标基站返回的沖突 解决指示信息， 则上述相邻小区的事件信息为： 终端已收到沖突解决指示 信息； 或者，
如果在该终端发生 HOF时，该终端已接收到切换目标基站下发的配置 前导信息， 则上述相邻小区的事件信息为： 终端已收到配置前导信息。
上述各实施例中的源小区的相邻小区可以是一个也可以是多个。 例如： 小区 A是源小区， 小区 A的相邻小区可以为小区^ 小区 C、 小区 D和小区 E 中的一个或多个。 下面以小区 A的相邻小区为小区 B、 小区 C、 小区 D和小区 E进行介绍。
终端在发生连接失败前记录的上述各相邻小区的事件信息可以分别为
TTT超时、 满足信号质量门限、 初始状态、 终端接收到切换命令。 作为一个 可选的实施例， 在 S103中终端可以将表 1发送给目标基站。
表 1
Figure imgf000008_0001
通过上述表 1可以看出， 终端在发生 RLF前记录小区 B对应的事件信息 是 TTT超时， 记录小区 C对应的事件信息是满足信号质量门限， 记录小区 D 对应的事件信息是初始状态信息，记录小区 E的事件信息是终端接收到切换 命令。下面以上述表 1为例，举例介绍终端记录相邻小区的事件信息的过程。
终端首先将相邻小区的事件信息设置为初始状态信息， 该初始化信息 也可以被称为该相邻小区的事件信息的初始化状态，例如终端将表 1 中的 4 个相邻小区的事件信息都设置为初始状态信息。
对于小区 D: 在终端发生 RLF前， 如果小区 D—直没有事件发生， 即 小区 D的信号质量门限没有满足预设的信号质量门限， 则终端在发生 RLF 后发送给目标基站的小区 D的事件信息就是初始化信息， 例如表 1 中的小 区 D对应的事件信息。
对于小区 C: 在终端发生 RLF前， 如果终端测得小区 C的信号质量满 足预设的信号质量门限， 且 TTT未超时， 则将小区 C对应的事件信息从初 始状态信息更新为满足信号质量门限。 终端在发生 RLF后发送给目标基站 的小区 C的事件信息就是满足信号质量门限， 例如表 1 中的小区 C对应的 事件信息。
对于小区 B: 在终端发生 RLF前， 如果终端测得小区 B的信号质量满 足预设的信号质量门限， 且 TTT未超时， 则将小区 B对应的事件信息从初 始状态信息更新为满足信号质量门限， 如果小区 B满足预设的信号质量的 门限的时间超过预设的 TTT时长， 即 TTT超时， 则终端再将小区 B对应的 事件信息从满足信号质量门限更新为 TTT超时。终端在发生 RLF后发送给 目标基站的小区 B的事件信息就是 TTT超时，例如表 1 中的小区 B对应的 事件信息。
对于小区 E: 在终端发生 RLF前， 如果终端测得小区 E的信号质量满 足预设的信号质量门限， 且 TTT未超时， 则将小区 E对应的事件信息从初 始状态信息更新为满足信号质量门限； 如果小区 E满足预设的信号质量的 门限的时间超过预设的 TTT时长， 即 TTT超时， 则终端再将小区 E对应的 事件信息从满足信号质量门限更新为 TTT超时； 如果在终端发生 HOF前 已经收到源基站发送的切换命令， 终端再将小区 E对应的事件信息从 TTT 超时更新为终端接收到切换命令。终端在终端发生 HOF后发送给目标基站 的小区 E的事件信息就是终端接收到切换命令， 例如表 1 中的小区 E对应 的事件信息。
从上述终端记录事件信息的过程可以看出， 在发生新事件的时候终端 是用新的事件信息更新原来的事件信息， 因此， 终端在发生 RLF或 HOF 后上报给目标基站的相邻小区的事件信息体现的是相邻小区涉及的最近发 生的事件。
可选地， 上述小区标识可以为小区的物理标识（ Identity, ID ) , 也可 以是全局小区标识 ( Cell Global Identifier, CGI ) , 还可以是物理 ID和 CGI。 上述事件信息可以用事件标识来表示， 例如用数字、 字母、 字符串等任何 形式或组合形式表示， 每种事件具有唯一的事件标识。 例如， 将初始状态 表示为 "0" , 将满足信号质量门限表示为 "1 " , 将 TTT超时表示为 "2" , 将终端接收到切换命令表示为 "3" ； 或者， 将初始状态表示为 "00" , 将 满足信号质量门限表示为 "01 " , 将 TTT超时表示为 "10" , 将终端接收 到切换命令表示为 "1 1 " 。
作为另一可选实施例， 上述终端还可以向目标基站发送源基站下发的 下述参数中的一个或多个： 用于判断是否产生 RLF的定时器 T310, 用于 判断是否启动该定时器的失步指示的次数 N310,用于判断是否终止该定时 器的同步指示的次数 N311 , 无线链路控制层重传最大次数， 前导重传最大 次数。
在本发明各实施例中， 源基站和目标基站可以为演进基站 eNB, 基站 台 （ Base Station, BS ), 节点 B ( Node B ), 接入点 （ access point, AP ) 等。 源基站和目标基站可以是宏基站， 也可以是中型基站， 还可以是微型 基站， 例如家庭基站等。
通过本实施例提供的技术方案， 当终端发生连接失败时，该终端重建 RRC 连接， 并向重建 RRC连接的小区的控制基站发送源小区的相邻小区的小区 标识和该终端在发生上述连接失败前记录的上述相邻小区的事件信息， 以 使该重建 RRC连接的小区的控制基站将上述源小区的相邻小区的小区标识 和该终端在发生上述连接失败前记录的上述相邻小区的事件信息转发给源 基站， 进而使该源基站可以根据相邻小区经历的事件， 调整上述相邻小区 的移动性参数并发送给终端， 进而提高移动性参数调整的准确度和终端的 切换效率。 需要说明的是， 如果重建 RRC连接的小区和源小区属于同一基 站， 即源基站可直接获得上述源小区的相邻小区的小区标识和该终端在发 生上述连接失败前记录的上述相邻小区的事件信息， 并进行相邻小区的移 动参数调整。
图 2为本发明提供的小区移动性参数调整方法的实施例的流程图， 如图 2所示， 该方法包括以下内容。
S201 , 源小区的控制基站获取终端在发生连接失败后上报的该源小区 的相邻小区的小区标识和终端在发生连接失败前记录的该相邻小区的事件 信息。
该 S201中， 源小区的相邻小区的小区标识和终端在发生连接失败前记录 的该相邻小区的事件信息是终端上报给重建 RRC连接的小区的控制基站， 具体上报过程的内容参见图 1所示实施例的内容， 此处不再赘述。
可选地，如果终端在发生连接失败后重建 RRC连接的小区和源小区属 于同一基站， 则在终端重建 RRC连接后， 源小区的控制基站接收终端上报 的该源小区的相邻小区的小区标识和终端在发生连接失败前记录的该相邻 小区的事件信息。如果终端在发生连接失败后重建 RRC连接的小区和源小 区不属于同一基站， 则在终端重建 RRC连接后， 源小区的控制基站接收重 建 RRC 连接的小区的控制基站转发的上述源小区的相邻小区的小区标识 和终端在发生连接失败前记录的该相邻小区的事件信息。
S202, 上述源小区的控制基站根据上述终端在发生连接失败前记录的 上述相邻小区的事件信息， 调整该相邻小区的移动性参数。
例如： 若该相邻小区的事件信息为初始状态信息的数量超过预设门限， 则降低该相邻小区的移动性参数中的信号质量的门限； 若该相邻小区的事 件信息为满足信号质量门限的数量超过预设门限， 则减小该相邻小区的移 动性参数中的 TTT时长。
需要说明的是， 源基站可能收到一个或多个终端上报的相邻小区的事 件信息， 因此， 源基站可以统计一段时间内一个或多个终端发送的相邻小 区的事件信息的情况。 例如： 一段时间内一个终端发送的某相邻小区的事 件信息是初始状态信息， 表示该相邻小区在一段时间内都不满足预设的信 号质量门限， 即无事件发生， 或一段时间内多个终端上报某相邻小区的事 件信息 90%以上都是初始状态信息， 则表示该相邻小区预设的信号质量门 限可能设定得过高， 因此， 源基站可以适当调整该相邻小区预设的信号质 量门限的相关参数， 包括小区特定偏置（〇cn ) , 测量事件偏置（ offset )等， 从而降低该预设的信号质量门限值。 再例如， 如果一段时间内一个终端或 多个终端上报某相邻小区的事件信息 90%以上都是满足预设的信号质量门 限， 则表示该相邻小区的 TTT时长可能过长， 因此， 源基站可以适当缩短 该相邻小区的 TTT时长。 以上仅为源基站调整相邻小区的移动性能参数的 两个具体例子， 但并不以此作为本发明的限制。 可以理解的是， 源基站可 以根据一段时间内一个终端或多个终端上报的相邻小区的事件信息调整相 应相邻小区的移动性能参数， 实现更准确地调整相邻小区的移动性能参数， 从而提高终端的切换效率。
通过本实施例提供的技术方案，源基站通过获取终端在发生连接失败后上 报的源小区的相邻小区的小区标识和该终端在发生上述连接失败前记录的 上述相邻小区的事件信息， 使该源基站可以根据相邻小区的事件信息， 调 整该相邻小区的移动性参数并发送给终端， 进而提高移动性参数调整的准 确度和终端的切换效率。
下面为图 3所示的实施例， 本实施例以终端在接收到源基站发送的切换 命令之前与源基站产生 RLF的场景为例， 进一步详细介绍图 1和图 2所示的 实施例提供的技术方案。 本实施例具体包括以下内容。
5301 , 终端接收源基站发送的测量配置信息， 并根据该测量配置信息 对源小区 （即当前服务小区）和相邻小区进行测量。
终端接收到源基站下发的测量配置信息， 该测量配置信息指示终端对 源小区和相邻小区进行信号质量测量， 该测量配置信息中包括相邻小区的 移动性参数。 上述相邻小区可以是一个， 也可以是多个。 其中， 移动性参 数中可以包括： 信号质量门限， 例如： A3门限， A3门限是一种信号质量门 限， 具体是 3GPP 36.331标准协议中定义的一种测量报告上报事件的门限。 信号质量可以是参考信号接收功率（ Reference Signal Receiving Power, RSRP ) , 或者参考信号接收质量 ( Reference Signal Receiving Quality, RSRQ )等； 移动性参数中还可以包括： TTT时长， 如果相邻小区的信号质 量满足预设的信号质量门限的时间超过该 TTT时长，则终端向源基站上报测 量报告。
其中， 为了筒要描述本发明提供的小区移动性参数调整方法， 本实施 例以相邻小区为小区 1为例进行介绍。 实际上， 终端进行测量的相邻小区可 以为多个。
5302, 终端测量到小区 1的信号质量满足预设的信号质量门限， 启动 TTT, 且 TTT未超时， 将小区 1的小区标识对应的事件信息由初始状态信息 更新为满足信号质量门限。 本实施例中的信号质量门限可以为 A3门限。
其中， 预设的信号质量门限为源基站下发的测量配置信息中指示的预 设门限。
本实施例中， 默认小区 1的小区标识对应的事件信息初始值为初始状态 信息。 当小区 1的信号质量满足预设的信号质量门限时， 终端将小区 1的小 区标识对应的事件信息， 由初始状态信息更新为满足信号质量门限。
如果终端的多个相邻小区的信号质量都满足预设的信号质量门限， 则 终端将各个相邻小区的小区标识对应的事件信息， 都由初始状态信息更新 为满足信号质量门限。
5303, 如果针对小区 1设定的 TTT超时， 即 TTT时间内， 小区 1的信号 质量都满足预设的信号质量门限， 则终端将小区 1的小区标识对应的事件信 息更新为 TTT超时， 终端向源基站上报测量报告。
其中， TTT时长可以为源基站下发的测量配置信息中指示的 TTT时长。
5304, 终端在源小区发生 RLF, 则终端重建 RRC连接， 终端将小区 1 的小区标识和小区 1对应的事件信息上报给重建 RRC连接的小区的控制基 站。 可选的， 终端可以将上述小区 1的小区标识和小区 1对应的事件信息携 带在 RLF报告中上报给重建 RRC连接的小区的控制基站。 上述重建 RRC连 接的小区为可以是源小区， 也可以不是源小区， 本实施例以重建 RRC连接 的小区不是源小区， 且重建 RRC连接的小区和源小区不属于同一基站的场 景为例进行介绍。
本实施例的场景是， 小区 1的信号质量满足预设的信号质量门限的时间 超过 TTT时长之后， 即小区 1对应的事件信息已被更新为 TTT超时， 终端才 在源小区发生 RLF。 因此， 本实施例的 S304中， 终端向重建 RRC连接的小 区的控制基站上报的小区 1的事件信息为 TTT超时。
需要说明的是， 如果小区 1的信号质量还未满足预设的信号质量门限 时， 终端在源小区发生 RLF, 即 S301之后直接执行 S304的情况， 此时小区 1对应的事件信息仍为初始状态信息。这种情况下， S304中终端向重建 RRC 连接的小区的控制基站上报的小区 1的事件信息为初始状态信息。
如果小区 1的信号质量满足设定门限， 但尚未出现 TTT超时情况， 终端 在源基站中产生 RLF (即 S302之后执行 S304的情况） ， 此时， 小区 1对应 的事件信息为满足信号质量门限标识， 这种情况下， S304中终端向重建 RRC连接的小区的控制基站上报的小区 1的事件信息为满足信号质量门限。
进一步的， 终端还可以向重建 RRC连接的小区的控制基站上报源基站 下发的以下信息中的一个或多个： T310 (具体为判断是否产生 RLF的定时 器）、 N310 (连续上报 Qout的次数， 其中 Qout为判断是否产生失步的信号 质量门限）、 无线链路控制 ( Radio link control, RLC )重传最大重传次数, 随机接入信道（ Random Access Channel, RACH )前导最大重传次数等， 以辅助源基站调整相邻小区的移动性能参数。
5305, 重建 RRC连接的小区的控制基站将终端上报的小区 1的小区标 识和小区 1对应的事件信息转发给源基站。
5306, 源基站根据小区 1对应的事件信息调整小区 1的移动性参数。 S306中的调整小区 1的移动性参数的方法可参见图 2所示实施例中的 详细内容， 此处不再赘述。
通过本实施例提供的技术方案，当终端发生 RLF时，该终端重建 RRC连接， 并向重建 RRC连接的小区的控制基站发送源小区的相邻小区的小区标识和 该终端在发生 RLF前记录的上述相邻小区的事件信息。 以使该重建 RRC连 接的小区的控制基站将上述源小区的相邻小区的小区标识和该终端在发生 RLF败前记录的上述相邻小区的事件信息转发给源基站，进而使该源基站可 以根据相邻小区经历的事件， 调整上述相邻小区的移动性参数并发送给终 端。 进而提高移动性参数调整的准确度和终端的切换效率。 需要说明的是， 如果重建 RRC连接的小区和源小区属于同一基站， 即源基站可直接获得上 述源小区的相邻小区的小区标识和该终端在发生上述连接失败前记录的上 述相邻小区的事件信息， 并进行相邻小区的移动参数调整。
图 4为本发明提供的小区移动性参数调整方法再一个实施例的流程图， 如图 4所示， 本实施例与前一实施例的区别在于， 终端在接收到切换命令之 后， 发生 H〇F。 该方法具体包括以下内容。
5401 , 终端接收源基站发送的测量配置信息， 并根据该测量配置信息 对源小区 （即当前服务小区）和相邻小区进行测量。
5402,终端测量到小区 2的信号质量满足预设的信号质量门限（本实施 例中设定门限为 A3门限） ， 则启动 TTT, 且 TTT未超时， 将小区 2的小区 标识对应的事件信息由初始状态信息更新为满足信号质量门限。
5403, 如果针对小区 2设定的 TTT超时， 即 TTT时间内， 小区 2的信号 质量都满足预设的信号质量门限， 则终端将小区 2的小区标识对应的事件信 息更新为 TTT超时， 终端向源基站上报测量报告。
其中， S401 -S403的过程与图 3所示实施例中的 S301 -S303的过程相类 似， 具体可参见图 3所示实施例。
5404, 终端接收到源基站发送的切换命令（例如： HO Command ) , 终端将小区 2对应的事件信息由 TTT超时更新为终端接收到切换命令。
终端接收到切换命令之后， 断开与源基站的连接， 开始与切换目标基 站建立链接。
S405, 终端发生 HOF, 即未成功切换到切换目标基站。
S406, 终端重建 RRC连接， 并在 RLF报告中携带小区 2的小区标识和 小区 2对应的事件信息向重建 RRC连接的控制基站上报。 其中小区 2对应的 事件信息为终端终端接收到切换命令。
本实施例中， 重建 RRC连接的控制基站可以是源基站， 也可是发生切 换失败的切换目标基站， 还可以是除上述源基站和上述切换目标基站以外 的第三基站。 本实施例以重建 RRC连接的控制基站为切换目标基站或第三 基站， 重建 RRC连接的基站与源基站不是同一基站为例进行介绍。
进一步的， 终端还可以向重建 RRC连接的控制基站上报源基站下发的 以下信息中的一个或多个： T310、 N310、 N31 1、 RLC重传最大重传次数， 随机接入前导最大重传次数等， 以辅助源基站调整相邻小区的移动性能参 数。
5407, 上述重建 RRC连接的控制基站将终端上报的小区 1的小区标识 和小区 1对应的事件信息转发给终端的源基站。
5408, 源基站根据小区 2对应的事件信息调整小区 2的移动性参数。 S408中的调整小区 2的移动性参数的方法可参见图 2所示实施例中的 详细内容， 此处不再赘述。
可选地， 终端接收到源基站发送的切换命令之后， 也可以向切换目标 基站发起随机接入或者非随机接入。
终端向切换目标基站发起随机接入（RACH )的过程中， 可选的， 终端 可以在向切换目标基站发送前导消息后， 将小区 2对应的事件信息更新为 终端已发送前导； 终端可以在接收到切换目标基站发送的前导响应消息后， 将小区 2对应的事件信息更新为终端已获取前导响应； 终端可以在向切换 目标基站发送第一条调度的上行消息后， 将小区 2对应的事件信息更新为 终端已发送调度消息； 终端可以在接收到切换目标基站返回的沖突解决指 示信息后， 将小区 2对应的事件信息更新为终端已收到沖突解决指示信息。
作为一种可行的实施方式， 小区 2的上述事件信息可以用标识形式表 示， 例如： 终端已发送前导可以以 "4" 表示， 终端已获取前导响应可以以 "5" 表示， 终端已发送调度消息可以以 "6" 表示， 终端已收到沖突解决 指示信息可以以 "7" 表示。
终端向切换目标基站发起非随机接入的过程中， 终端接收到切换目标 基站下发的配置前导信息， 将小区 2对应的事件信息更新为终端已收到配置 前导信息； 若终端向切换目标基站发送前导， 则将小区 2对应的事件信息更 新为终端已发送前导； 若终端接收到切换目标基站返回的前导响应消息， 则将小区 2对应的事件信息更新为终端已获取前导响应。
相应地， 如果终端上 小区 2的事件信息为终端已发送前导， 或终端已 获取前导响应， 或终端已发送调度消息， 或终端已收到沖突解决标识信息， 或终端已收到配置前导信息， 则源基站可以对小区 2的上行功率进行调整。 通过本实施例提供的技术方案， 当终端发生 HOF时， 该终端重建 RRC连 接， 并向重建 RRC连接的小区的控制基站发送源小区的相邻小区的小区标 识和该终端在发生 HOF前记录的上述相邻小区的事件信息。 以使该重建 RRC连接的小区的控制基站将上述源小区的相邻小区的小区标识和该终端 在发生 HOF败前记录的上述相邻小区的事件信息转发给源基站， 进而使该 源基站可以根据相邻小区经历的事件， 调整上述相邻小区的移动性参数并 发送给终端。 进而提高移动性参数调整的准确度和终端的切换效率。 需要 说明的是， 如果重建 RRC连接的小区和源小区属于同一基站， 即源基站可 直接获得上述源小区的相邻小区的小区标识和该终端在发生上述连接失败 前记录的上述相邻小区的事件信息， 并进行相邻小区的移动参数调整。
本领域普通技术人员可以理解实现上述实施例方法中的全部或部分流 程， 是可以通过计算机程序来指令相关的硬件来完成， 所述的程序可存储 于一计算机可读取存储介质中， 该程序在执行时， 可包括如上述各方法的 实施例的流程。 其中， 所述的存储介质可为磁碟、 光盘、 只读存储记忆体 ( Read-Only Memory , ROM ) 或随机存储记忆体 ( Random Access Memory, RAM )等。
图 5为本发明实施例提供的一种终端的结构示意图， 如图 5所示， 该 终端 50包括： 检测单元 11、 重建单元 12和发送单元 13。
其中，上述检测单元 11用于检测终端发生连接失败；上述重建单元 12 用于在所述检测单元检测到所述终端发生连接失败时， 重建无线资源控制 RRC连接；上述发送单元 13用于向上述重建 RRC连接的小区的控制基站 发送源小区的相邻小区的小区标识和该终端在发生上述连接失败前记录的 该相邻小区的事件信息。
可选地，上述发送单元 13发送的相邻小区的事件信息包括以下信息之 一： 初始状态信息、 满足信号质量门限、 触发时间 TTT超时、 终端接收到 切换命令。 如果上述检测单元 11 检测到的连接失败为该终端在上述源小区发生 RLF, 那么：
( 1 )如果在该终端发生 RLF前， 上述相邻小区的信号质量未满足预 设的信号质量门限， 则上述发送单元 13发送的相邻小区的事件信息为： 初 始状态信息； 或者，
( 2 )如果在该终端发生 RLF前， 上述相邻小区的信号质量满足预设 的信号质量门限， 且触发时间 TTT未超时， 则上述发送单元 13发送的相 邻小区的事件信息为： 满足信号质量门限； 或者，
( 3 )如果在该终端发生 RLF前， 上述相邻小区的信号质量满足预设 的信号质量门限的时间超过预设的 TTT时长， 则上述发送单元 13发送的 相邻小区的事件信息为： TTT超时。
如果上述检测单元 11 检测到的连接失败为所述终端发生切换失败 HOF, 那么：
( 1 )如果该终端已接收到上述源小区的控制基站发送的切换命令， 则 上述发送单元 13发送的相邻小区的事件信息为： 终端接收到切换命令； 或 者
( 2 )如果在所述检测单元 11检测到该终端发生 HOF时， 该终端已向 切换目标小区的控制基站发送前导消息， 则上述发送单元 13发送的相邻小 区的事件信息为： 终端已发送前导； 或者，
( 3 )如果在所述检测单元检测到所述终端发生 HOF时， 该终端已接 收到切换目标小区的控制基站返回的前导响应消息，则上述发送单元 13发 送的相邻小区的事件信息为： 终端已获取前导响应； 或者，
( 4 )如果在上述检测单元 11检测到所述终端发生 HOF时， 该终端已 向切换目标小区的控制基站发送第一条调度的上行消息， 则上述发送单元 13发送的相邻小区的事件信息为： 终端已发送调度消息； 或者，
( 5 )如果在上述检测单元 11检测到所述终端发生 HOF时， 该终端已 接收到切换目标小区的控制基站返回的沖突解决指示信息， 则上述发送单 元 13发送的相邻小区的事件信息为：终端已收到沖突解决指示信息；或者，
( 5 )如果在所述检测单元检测到所述终端发生 HOF时， 所述终端已 接收到切换目标小区的控制基站下发的配置前导信息， 则上述发送单元 13 发送的相邻小区的事件信息为： 终端已收到配置前导信息。 可选地， 上述发送单元 13还用于， 向上述目标小区的控制基站发送上 述源小区的控制基站下发的下述参数的一个或多个： 用于判断是否产生 RLF 的定时器， 用于判断是否启动所述定时器的失步指示的次数， 用于判 断是否终止所述定时器的同步指示的次数， 无线链路控制层重传最大次数， 前导重传最大次数。
本实施例提供的上述终端可以实现如图 1 -4所示方法实施例中终端的 操作内容， 此处不再赘述。
本发明实施例提供的终端， 当发生连接失败时重建 RRC连接， 并向重建 RRC连接的小区的控制基站发送源小区的相邻小区的小区标识和该终端在 发生上述连接失败前记录的上述相邻小区的事件信息。 以使重建 RRC连接 的小区的控制基站将上述源小区的相邻小区的小区标识和该终端在发生上 述连接失败前记录的上述相邻小区的事件信息转发给源基站， 进而使该源 基站可以根据相邻小区经历的事件， 调整上述相邻小区的移动性参数并发 送给终端。 进而提高移动性参数调整的准确度和终端的切换效率。 需要说 明的是， 如果重建 RRC连接的小区和源小区属于同一基站， 即源基站可直 接获得上述源小区的相邻小区的小区标识和该终端在发生上述连接失败前 记录的上述相邻小区的事件信息， 并进行相邻小区的移动参数调整。
图 6为本发明实施例提供的一种基站的结构示意图， 如图 6所示， 该 基站包括： 获取单元 21和调整单元 22。
其中，上述获取单元 21用于获取终端在发生连接失败后上报的源小区 的相邻小区的小区标识和终端在发生连接失败前记录的该相邻小区的事件 信息； 上述调整单元 22用于根据上述获取单元 21获取的上述终端在发生 上述连接失败前记录的上述相邻小区的事件信息， 调整该相邻小区的移动 性参数。
可选地，如果上述源小区和终端在发生连接失败后重建 RRC连接的小 区属于同一基站； 上述获取单元进一步用于： 在该终端重建 RRC连接后， 接收该终端上报的源小区的相邻小区的小区标识和终端在发生连接失败前 记录的所述相邻小区的事件信息。
如果上述源小区和所述终端在发生连接失败后重建 RRC 连接的小区 不属于同一基站； 上述获取单元进一步用于， 在终端重建 RRC连接后， 接 收重建 RRC 连接的小区的控制基站转发的源小区的相邻小区的小区标识 和终端在发生连接失败前记录的所述相邻小区的事件信息。
可选地， 上述获取单元获取的上述相邻小区的事件信息包括以下信息 之一： 初始状态信息、 满足信号质量门限、 触发时间 TTT超时、 终端接收 到切换命令。
作为一个具体地实施例， 上述调整单元 22可具体用于： 若上述相邻小 区的事件信息为初始状态信息的数量超过预设门限， 则降低该相邻小区的 移动性参数中的信号质量的门限； 若上述相邻小区的事件信息为满足信号 质量门限的数量超过预设门限， 则减小该相邻小区移动性参数中的 TTT时 长。
本发明实施例提供的基站为终端的源基站， 与图 2所示本发明实施例 提供的小区移动性参数调整方法实施例相对应， 为该方法实施例的执行设 备， 其具体的执行过程可参见方法实施例， 不再赘述。
通过本实施例提供的技术方案， 源基站通过获取终端在发生连接失败 后上 的相邻小区的小区标识和该终端在发生上述连接失败前记录的上述 相邻小区的事件信息， 使该源小区的控制基站可以根据相邻小区的事件信 息， 调整该相邻小区的移动性参数并发送给终端， 进而提高移动性参数调 整的准确度和终端的切换效率。
图 7为本发明一实施例提供的小区信息上报方法的流程图， 如图 1所 示， 该方法包括以下内容。
5701 , 终端发生连接失败（ connection failure )。
可选地， 上述终端发生的连接失败可以是终端在源小区发生 RLF, 也 可以是终端发生 H〇F。
在本发明各实施例中， 终端 （terminal )可以为 UE, 例如： 无线通信 设备， 手持设备（handheld ), 无绳电话 ( cordless phone )等。
5702, 该终端重建 RRC连接。
在本实施例中， 终端可以在源小区重建 RRC连接， 也可以在切换目标 小区重建 RRC连接，还可以在除上述源小区和上述切换目标小区之外的第 三小区重建 RRC连接。
5703, 该终端向重建 RRC 连接的小区的控制基站发送源小区的小区 标识和该终端在发生连接失败前记录的该源小区的事件信息； 或者， 上述终端向重建 RRC 连接的小区的控制基站发送上述源小区的相邻 小区的小区标识和上述终端在发生上述连接失败前记录的上述相邻小区的 事件信息， 上述相邻小区和上述源小区是异频小区或异***小区； 或者， 上述终端向重建 RRC连接的小区的控制基站发送源小区的小区标识、 上述终端在发生上述连接失败前记录的上述源小区的事件信息、 上述源小 区的相邻小区的小区标识和上述终端在发生上述连接失败前记录的上述相 邻小区的事件信息， 上述相邻小区和上述源小区是异频小区或异***小区。
上述重建 RRC连接的小区可以是发生切换失败的切换目标小区、或源 小区、 或除上述源小区和上述切换目标小区之外的第三小区。
为方便描述起见， 后续实施例中将 "终端在发生上述连接失败前记录 的该源小区的事件信息" 也可称为 "源小区的事件信息"， 将终端在发生上 述连接失败前记录的与源小区异频或异***的相邻小区的事件信息也可称 为 "相邻小区的事件信息"。 源小区的控制基站也可称为源基站， 切换目标 小区的控制基站也可称为切换目标基站， 第三小区的控制基站也可称为第 三基站。
可选地， 上述源小区的事件信息可以包括： 初始状态信息或满足信号 质量门限， 或者 TTT超时。
作为一个可选实施例， 若终端发生的连接失败为 RLF, 那么： 如果在该终端发生 RLF前， 源小区的信号质量未满足预设的信号质量 门限， 则该源小区的事件信息为： 初始状态信息； 或者，
如果在该终端发生 RLF前， 源小区的信号质量满足预设的信号质量门 限， 则所述源小区的事件信息为： 满足信号质量门限； 或者，
如果在该终端发生 RLF前， 源小区的信号质量满足预设的信号质量门 限的时间超过预设的 TTT时长， 则所述源小区的事件信息为： TTT超时。
上述与源小区是异频或异***的相邻小区的事件信息包括以下信息之 一： 初始状态信息、 满足信号质量门限、 TTT超时、 终端接收到切换命令。
作为一个可选实施例，
如果在终端发生 RLF前， 上述相邻小区的信号质量未满足预设的信号 质量门限， 则上述相邻小区的事件信息为： 初始状态信息； 或者，
如果在终端发生 RLF前， 上述相邻小区的信号质量满足预设的信号质 量门限， 但 TTT尚未超时， 则相邻小区的事件信息为： 满足信号质量门限； 如果在终端发生 RLF前， 上述相邻小区的信号质量满足预设的信号质 量门限的时间超过预设的 ΤΤΤ时长，则相邻小区的事件信息为： ΤΤΤ超时。 作为另一个可选实施例， 若终端发生的连接失败为 HOF, 那么在该终端发 生 HOF时， 如果该终端已接收到源基站发送的切换命令， 则上述与源小区 异频或异***的相邻小区的事件信息为： 终端接收到切换命令；
或者， 如果在该终端发生 HOF时， 该终端已向切换目标基站发送前导 消息， 则上述相邻小区的事件信息为： 终端已发送前导； 或者，
如果在该终端发生 HOF时，该终端已接收到切换目标基站返回的前导 响应消息， 则上述相邻小区的事件信息为： 终端已获取前导响应； 或者， 如果在该终端发生 HOF时，该终端已向切换目标基站发送第一条调度 的上行消息， 则上述相邻小区的事件信息为： 终端已发送调度消息； 或者， 如果在该终端发生 HOF时，该终端已接收到切换目标基站返回的沖突 解决指示信息， 则上述相邻小区的事件信息为： 终端已收到沖突解决指示 信息； 或者，
如果在该终端发生 HOF时，该终端已接收到切换目标基站下发的配置 前导信息， 则上述相邻小区的事件信息为： 终端已收到配置前导信息。
上述各实施例中的源小区的异频或异***的相邻小区可以是一个也可 以是多个。 例如： 小区 Α是源小区， 小区 A的异频或异***的相邻小区可 以为小区 ^ 小区 C、 小区 D和小区 E中的一个或多个。 其中， 小区 B、 小区 C、 小区 D以及小区 E均与小区 A的频率不同或通信***不同， 即， 为小区 A的异频或异***小区。 下面以小区 A的相邻小区为小区 B、 小区 C、 小区 D和小区 E进行介绍。
终端在发生连接失败前记录的源小区的事件信息可以是 TTT超时， 源 小区的上述各相邻小区的事件信息可以分别为满足信号质量门限、 初始状 态、 终端接收到切换命令和 TTT超时。 作为一个可选的实施例， 在 S703 中终端可以将表 2发送给目标基站。
表 2
Figure imgf000021_0001
小区 B 满足信号质量门限 小区 C 初始状态信息
小区 D 终端接收到切换命令 小区 E TTT超时
通过上述表 2可以看出， 终端在发生 RLF前记录小区 A (源小区） 的 事件信息是 TTT超时， 记录小区 B对应的事件信息是满足信号质量门限， 记录小区 C对应的事件信息是初始状态信息， 记录小区 D的事件信息是终 端接收到切换命令， 记录小区 E的事件信息是 TTT超时。 下面以上述表 2 为例， 举例介绍终端记录相邻小区的事件信息的过程。
终端首先将源小区和相邻小区的事件信息设置为初始状态信息， 该初 始化信息也可以被称为该源小区和相邻小区的事件信息的初始化状态， 例 如终端将表 2中的 1个源小区和 4个相邻小区的事件信息都设置为初始状 态信息。
对于小区 C: 在终端发生 RLF前， 如果小区 C一直没有事件发生， 即 小区 C的信号质量门限没有满足预设的信号质量门限， 则终端在发生 RLF 后发送给目标基站的小区 C的事件信息就是初始状态信息， 例如表 2中的 小区 C对应的事件信息。
对于小区 B: 则在终端发生 RLF前， 如果终端测得小区 A满足信号质 量门限， 即小区 A的事件信息为满足信号质量门限， 该信号质量门限可以 是 A2门限， 且小区 B满足信号质量门限， 在小区 B与小区 A的频率不同 的实施场景下， 该信号质量门限可以是 A4门限， 在小区 B与小区 A的通 信***不同的实施场景下， 该信号质量门限可以是 B1 门限， 则可以将小区 B对应的事件信息从初始状态信息更新为满足信号质量门限。 终端在发生 RLF后发送给目标基站的小区 B的事件信息就是满足信号质量门限， 例如 表 1 中的小区 B对应的事件信息。
对于源小区， 即小区 A: 在终端发生 RLF前， 如果终端测得小区 A的 信号质量满足预设的信号质量门限， 该信号质量门限可以是 A2门限， 则可 以将小区 A对应的事件信息从初始状态信息更新为满足信号质量门限； 如 果终端发生 RLF前， 小区 A的信号质量满足预设的信号质量门限的时间超 过预设的 TTT时长， 则可以将小区 A对应的事件信息从满足信号质量门限 更新为 TTT超时，终端在发生 RLF后发送给目标基站的小区 Α的事件信息 为 TTT超时， 例如表 2中的小区 A对应的事件信息。
对于小区 D: 在终端发生 RLF前， 如果终端测得小区 D的信号质量满 足预设的信号质量门限， 则将小区 D对应的事件信息从初始状态信息更新 为满足信号质量门限； 如果在终端发生 HOF前已经收到源基站发送的切换 命令， 终端再将小区 D对应的事件信息从满足信号质量门限更新为终端接 收到切换命令。终端在终端发生 HOF后发送给目标基站的小区 D的事件信 息就是终端接收到切换命令， 例如表 2中的小区 D对应的事件信息。
对于小区 E: 在终端发生 RLF前， 如果终端测得小区 E的信号质量已 经满足预设的信号质量门限， 则将小区 E对应的事件信息从初始状态更新 为满足信号质量门限； 如果终端测得小区 E的信号质量已经满足预设的信 号质量门限的时间超过预设的 TTT时长， 则将小区 E对应的事件信息从满 足信号质量门限更新为 TTT时长。终端在发生 RLF后发送给目标基站的小 区 E的事件信息即为 TTT时长， 例如表 2中的小区 E对应的事件信息。
从上述终端记录事件信息的过程可以看出， 在发生新事件的时候终端 是用新的事件信息更新原来的事件信息， 因此， 终端在发生 RLF或 HOF 后上报给目标基站的源小区的事件信息体现的是源小区涉及的最近发生的 事件， 上报给目标基站的相邻小区的事件信息体现的是相邻小区涉及的最 近发生的事件。
可选地， 上述小区标识可以为小区的物理 ID, 也可以是 CGI , 还可以 是物理 ID和 CGL 上述事件信息可以用事件标识来表示， 例如用数字、 字 母、 字符串等任何形式或组合形式表示， 每种事件具有唯一的事件标识。 例如， 将初始状态表示为 "0" , 将满足信号质量门限表示为 "1 " , 将 TTT 超时表示为 "2" , 将终端接收到切换命令表示为 "3" ; 或者， 将初始状态 表示为 "00" , 将满足信号质量门限表示为 "01 " , 将终端接收到切换命令 表示为 "10"。
作为另一可选实施例， 上述终端还可以向目标基站发送源基站下发的 下述参数中的一个或多个： 用于判断是否产生 RLF的定时器 T310, 用于 判断是否启动该定时器的失步指示的次数 N310,用于判断是否终止该定时 器的同步指示的次数 N311 , 无线链路控制层重传最大次数， 前导重传最大 次数。 在本发明各实施例中， 源基站和目标基站可以为演进基站 eNB, BS, Node B, AP 等。 源基站和目标基站可以是宏基站， 也可以是中型基站， 还可以是微型基站， 例如家庭基站等。
通过本实施例提供的技术方案， 当终端发生连接失败时， 该终端重建 RRC连接， 并向重建 RRC连接的小区的控制基站发送源小区的小区标识 和该终端在发生上述连接失败前记录的上述源小区的事件信息； 或者， 向 重建 RRC 连接的小区的控制基站发送与源小区频率不同或通信***不同 的相邻小区的小区标识和上述相邻小区的事件信息； 或者， 向重建 RRC连 接的小区的控制基站发送源小区发送源小区的小区标识和上述源小区的事 件信息， 以及上述相邻小区的小区标识和相邻小区的事件信息， 以使该重 建 RRC连接的小区的控制基站将终端上报的上述信息转发给源基站，进而 使该源基站可以根据源小区经历的事件和 /或与源小区异频或异***的相邻 小区经历的事件进行移动性参数的调整， 从而提高移动性参数调整的准确 度和终端的切换效率。
图 8为本发明一实施例提供的小区移动性参数调整方法的流程图， 如 图 8所示， 该方法包括以下内容。
S801 , 在终端在发生连接失败并重建 RRC连接后， 重建 RRC连接的 小区的控制基站接收上述终端上报的信息。
上述终端上报的信息包括： 上述源小区的小区标识和上述终端在发生 上述连接失败前记录的上述源小区的事件信息； 或者包括： 上述源小区的 相邻小区的小区标识和终端在发生连接失败前记录的上述相邻小区的事件 信息； 或者包括： 上述源小区的小区标识、 上述终端在发生上述连接失败 前记录的上述源小区的事件信息、 上述源小区的相邻小区的小区标识和终 端在发生连接失败前记录的上述相邻小区的事件信息； 其中， 上述相邻小 区和上述源小区是异频小区或异***小区。
该 S801 中，源小区的小区标识和终端在发生连接失败前记录的该源小 区的事件信息是终端上报给重建 RRC连接的小区的控制基站，源小区的相 邻小区的小区标识和终端在发生连接失败前记录的该相邻小区的事件信息 是终端上报给重建 RRC连接的小区的控制基站。
可选的，重建 RRC连接的小区的控制基站接收到的源小区的事件信息 可以包括： 初始状态信息或者满足信号质量门限，或者触发时间 TTT超时。 作为一种可行的实施方式， 上述终端发生连接失败为上述终端在上述 源小区发生无线链路失败 RLF, 贝 |J :
( 1 )如果在上述终端发生 RLF前， 上述源小区的信号质量未满足预 设的信号质量门限， 则终端上报的信息中上述源小区的事件信息为： 初始 状态信息； 或者，
( 2 )如果在上述终端发生 RLF前， 上述源小区的信号质量满足预设 的信号质量门限， 则终端上报的信息中上述源小区的事件信息为： 满足信 号质量门限； 或者，
( 3 )如果在上述终端发生 RLF前， 上述源小区的信号质量满足预设 的信号质量门限的时间超过预设的触发时间 TTT时长， 则终端上报的信息 中上述源小区的事件信息为： TTT超时。
可选的，重建 RRC连接的小区的控制基站接收到的相邻小区的事件信 息可以包括： 以下信息之一： 初始状态信息、 满足信号质量门限、 触发时 间 TTT超时、 终端接收到切换命令。
作为一种可行的实施方式， 上述终端发生连接失败为上述终端在上述 源小区发生无线链路失败 RLF, 贝 |J :
( 1 )如果在上述终端发生 RLF前， 上述相邻小区的信号质量未满足 预设的信号质量门限， 则终端上报的信息中上述相邻小区的事件信息为： 初始状态信息； 或者，
( 2 )如果在上述终端发生 RLF前， 上述相邻小区的信号质量满足预 设的信号质量门限， 则终端上报的信息中上述相邻小区的事件信息为： 满 足信号质量门限； 或者，
( 3 )如果在上述终端发生 RLF前， 上述相邻小区的信号质量满足预 设的信号质量门限的时间超过预设的触发时间 TTT时长， 则终端上报的信 息中上述相邻小区的事件信息为： TTT超时。
作为另一种可行的实施方式， 上述终端发生连接失败为上述终端发生 切换失败 HOF, 贝 |J :
( 1 )在上述终端发生 HOF时， 如果上述终端已接收到上述源小区的 控制基站发送的切换命令， 则终端上报的信息中上述相邻小区的事件信息 为： 终端接收到切换命令。
( 2 )如果在上述终端发生 HOF时， 上述终端已向切换目标小区的控 制基站发送前导消息， 则终端上报的信息中上述相邻小区的事件信息为： 终端已发送前导； 或者，
( 3 )如果在上述终端发生 HOF时， 上述终端已接收到切换目标小区 的控制基站返回的前导响应消息， 则终端上报的信息中上述相邻小区的事 件信息为： 终端已获取前导响应； 或者，
( 4 )如果在上述终端发生 HOF时， 上述终端已向切换目标小区的控 制基站发送第一条调度的上行消息， 则终端上报的信息中上述相邻小区的 事件信息为： 终端已发送调度消息； 或者，
( 5 )如果在上述终端发生 HOF时， 上述终端已接收到切换目标小区 的控制基站返回的沖突解决指示信息， 则终端上报的信息中上述相邻小区 的事件信息为： 终端已收到沖突解决指示信息； 或者，
( 6 )如果在上述终端发生 HOF时， 上述终端已接收到切换目标小区 的控制基站下发的配置前导信息， 则终端上报的信息中上述相邻小区的事 件信息为： 终端已收到配置前导信息。
S802, 上述重建 RRC连接的小区的控制基站向源小区的控制基站转 发上述终端上报的信息。
上述重建 RRC连接的小区的控制基站接收到终端上报的上述信息后， 可以向源小区的控制基站转发上述终端上报的信息， 从而使源小区的控制 基站可以根据终端上报的源小区所经历的事件信息和 /或与源小区异频或异 ***的相邻小区经历的事件进行移动性参数的调整， 从而提高移动性参数 调整的准确度和终端的切换效率。
通过本实施例提供的技术方案，重建 RRC连接的小区的控制基站接收 到终端上报的源小区的小区标识和该终端在发生上述连接失败前记录的上 述源小区的事件信息； 或者， 与源小区频率不同或通信***不同的相邻小 区的小区标识和上述相邻小区的事件信息； 或者， 源小区的小区标识和上 述源小区的事件信息， 以及上述相邻小区的小区标识和相邻小区的事件信 息，重建 RRC连接的小区的控制基站可以将终端上报的上述信息转发给源 小区的控制基站， 进而使该源小区的控制基站可以根据源小区经历的事件 和 /或与源小区异频或异***的相邻小区经历的事件进行移动性参数的调 整， 从而提高移动性参数调整的准确度和终端的切换效率。
本发明还提供了源小区的控制基站接收到重建 RRC 连接的小区的控 制基站转发的终端上报的上述信息后， 对源小区的移动性参数和 /或与源小 区异频或异***的相信小区的移动性参数进行调整的实施例。
例如： 若该源小区的事件信息为初始状态信息的数量超过预设门限， 则源小区的控制基站可以提高该源小区的移动性参数中的信号质量的门 限。
例如： 对于与源小区异频或异***的相邻小区， 若该源小区的事件信 息为满足信号质量门限的数量超过设定门限， 且该相邻小区的事件信息为 初始状态信息的数量超过设定门限， 则源小区的控制基站可以降低该相邻 小区的移动性参数中的信号质量的门限。
需要说明的是， 源基站可能收到一个或多个终端上报的源小区的事件 信息， 因此， 源基站可以统计一段时间内一个或多个终端发送的源小区的 事件信息的情况。 例如： 一段时间内一个终端发送的源小区的事件信息是 初始状态信息， 表示该源小区在一段时间内都不满足预设的信号质量门限， 即无事件发生， 或者若一段时间内多个终端上报源小区的事件信息 90%以 上都是初始状态信息， 则源基站可以适当调整该源小区预设的信号质量门 限的相关参数来提高源小区的信号质量门限； 若一段时间内多个终端上报 的源小区的事件信息大多数为满足信号质量门限， 则一段时间内多个终端 上报的与源小区的频率不相同或通信***不相同的某相邻小区的事件信息 大多数为初始状态信息， 则说明该相邻小区的信号质量门限可能设置的过 高， 因此， 源基站可以适当调整该相邻小区预设的信号质量门限的相关参 数来降低该相邻小区的信号质量门限。 以上仅为源基站调整源小区的移动 性能参数的具体例子， 但并不以此作为本发明的限制。 可以理解的是， 源 基站可以根据一段时间内一个终端或多个终端上报的源小区的事件信息调 整源小区的移动性能参数， 实现更准确地调整源小区的移动性能参数， 从 而提高终端的切换效率。
以上仅为源基站调整源小区的移动性能参数， 和 /或， 调整与源小区频 率不同或通信***不同的相邻小区的移动性能参数的两个具体例子， 但并 不以此作为本发明的限制。
通过本实施例提供的技术方案，重建 RRC连接的小区的控制基站接收 到终端上报的源小区的小区标识和该终端在发生上述连接失败前记录的上 述源小区的事件信息； 或者， 与源小区频率不同或通信***不同的相邻小 区的小区标识和上述相邻小区的事件信息； 或者， 源小区的小区标识和上 述源小区的事件信息， 以及上述相邻小区的小区标识和相邻小区的事件信 息，重建 RRC连接的小区的控制基站可以将终端上报的上述信息转发给源 小区的控制基站， 进而使该源小区的控制基站可以根据源小区经历的事件 对源小区进行移动性参数调整， 还可以根据源小区经历的事件和与源小区 异频或异***的相邻小区经历的事件对上述相邻小区进行移动性参数的调 整， 从而提高移动性参数调整的准确度和终端的切换效率。
下面为图 9所示的实施例， 本实施例以终端在接收到源基站发送的切 换命令之前与源基站产生 RLF的场景为例， 进一步详细介绍图 7和图 8所 示的实施例提供的技术方案。 本实施例中， 以源小区为小区 1 为例， 介绍 终端向重建 RRC 连接的小区的控制基站发送源小区的小区标识和源小区 的事件信息以供源基站根据小区 1对应的事件信息调整小区 1 的移动性参 数的具体过程。 本实施例具体包括以下内容。
5901 , 终端接收源基站发送的第一测量配置信息， 并根据该第一测量 配置信息对源小区 （即当前服务小区） 以及和源小区同频的相邻小区进行 测量。
终端接收到源基站下发的第一测量配置信息， 该第一测量配置信息指 示终端对源小区和同频相邻小区进行信号质量测量， 该第一测量配置信息 中包括源小区和相邻小区的移动性参数。 其中， 移动性参数中可以包括： 信号质量门限，例如： A2门限， A2门限是一种信号质量门限，具体是 3GPP 36.331 标准协议中定义的一种测量报告上报事件的门限。 信号质量可以是 RSRP, 或者 RSRQ等； 移动性参数中还可以包括： TTT时长， 如果源小 区的信号质量在 TTT时长内都满足预设的信号质量门限， 则终端向源基站 上报测量报告。
5902, 终端测量到小区 1的信号质量满足预设的信号质量门限， 将小 区 1的小区标识对应的事件信息由初始状态信息更新为满足信号质量门限。
其中， 预设的信号质量门限为源基站下发的第一测量配置信息中指示 的预设门限， 例如： A2门限。
本实施例中， 默认小区 1 的小区标识对应的事件信息初始值为初始状 态信息。 当小区 1 的信号质量满足预设的信号质量门限时， 终端将小区 1 的小区标识对应的事件信息， 由初始状态信息更新为满足信号质量门限。 5903, 终端测量到小区 1的信号质量已经满足预设的信号质量门限的 时间超过预设的 TTT时长， 将小区 1的小区标识对应的事件信息由满足信 号质量门限更新为 TTT超时， 并上报测量报告。
5904, 基站向终端下发第二测量配置信息， 该第二测量配置信息中包 括用于进行异频或异***频点测量的测量间隙（GAP ), 以及异频或异*** 频点的移动性参数。
5905, 终端根据 S904中的第二测量配置信息对异频或异***的相邻 小区进行测量， 但还没有异频或异***的相邻小区满足测量条件时， 终端 在小区 1发生 RLF, 则终端重建 RRC连接， 终端将小区 1 的小区标识和 小区 1对应的事件信息上报给重建 RRC连接的小区的控制基站。
可选的， 终端可以将上述小区 1 的小区标识和小区 1对应的事件信息 携带在 RLF报告中上报给重建 RRC连接的小区的控制基站。上述重建 RRC 连接的小区为可以是源小区， 也可以不是源小区， 本实施例以重建 RRC连 接的小区不是源小区，且重建 RRC连接的小区和源小区不属于同一基站的 场景为例进行介绍。
本实施例提供的实施场景为： 小区 1 的信号质量满足设定门限超过预 设的 TTT时长， 终端在源基站中产生 RLF, 此时， 小区 1对应的事件信息 为 TTT超时标识， 这种情况下， S905中终端向重建 RRC连接的小区的控 制基站上报的小区 1的事件信息为 TTT超时。
需要说明的是， 如果小区 1 的信号质量还未满足预设的信号质量门限 时， 终端在源小区发生 RLF, 即 S901之后直接执行 S905的情况， 此时小 区 1对应的事件信息仍为初始状态信息。 这种情况下， S905中终端向重建 RRC连接的小区的控制基站上报的小区 1的事件信息为初始状态信息。 如 果小区 1满足信号质量门限， 但 TTT未超时时终端在源小区发生 RLF, 即 S902之后直接执行 S905的情况， 此时小区 1对应的事件信息仍为满足信 号质量门限。
进一步的，终端还可以向重建 RRC连接的小区的控制基站上报源基站 下发的以下信息中的一个或多个： T310 (具体为判断是否产生 RLF的定时 器）、 N310 (连续上报 Qout的次数， 其中 Qout为判断是否产生失步的信 号质量门限）、 RLC重传最大重传次数， RACH前导最大重传次数等， 以辅 助源基站调整相邻小区的移动性能参数。 5906, 重建 RRC连接的小区的控制基站将终端上报的小区 1 的小区 标识和小区 1对应的事件信息转发给源基站。
5907, 源基站根据小区 1对应的事件信息调整小区 1的移动性参数。 例如： 若该源小区的事件信息为初始状态信息的数量超过预设门限， 则提高该源小区的移动性参数中的信号质量的门限。
S907中的调整小区 1的移动性参数的方法还可以参见图 8所示实施例 中的详细内容， 此处不再赘述。
通过本实施例提供的技术方案， 当终端发生 RLF时， 该终端重建 RRC 连接，并向重建 RRC连接的小区的控制基站发送源小区的小区标识和该终 端在发生 RLF前记录的源小区的事件信息。 以使该重建 RRC连接的小区 的控制基站将上述源小区的小区标识和该终端在发生 RLF败前记录的该源 小区的事件信息转发给源基站， 进而使该源基站可以根据源小区经历的事 件， 调整源小区的移动性参数并发送给终端。 进而提高移动性参数调整的 准确度和终端的切换效率。 需要说明的是， 如果重建 RRC连接的小区和源 小区属于同一基站， 即源基站可直接获得上述源小区的小区标识和该终端 在发生上述连接失败前记录的源小区的事件信息， 并进行相邻小区的移动 参数调整。 下面为图 10所示的实施例，本实施例以终端在接收到源基站发送的切 换命令之前在源基站产生 RLF的场景为例， 进一步详细介绍图 7和图 8所 示的实施例提供的技术方案。 本实施例中， 以源小区的一个相邻小区 小区 2为例， 介绍终端向重建 RRC连接的小区的控制基站发送小区 2的小区标 识和小区 2的事件信息以供源基站根据小区 2对应的事件信息调整小区 2 的移动性参数的具体过程。 其中， 小区 2为与源小区异频或者异***的小 区。 本实施例具体包括以下内容。
S1001 ,终端接收源基站发送的第一测量配置信息，并根据第一该测量 配置信息对源小区 （即当前服务小区）， 以及与源小区同频的相邻小区进行 测量。
终端接收到源基站下发的第一测量配置信息， 该第一测量配置信息指 示终端对源小区和相邻小区进行信号质量测量， 该第一测量配置信息中包 括源小区和相邻小区的移动性参数。 其中， 第一测量配置信息中的相邻小 区的移动性参数为与源小区的同频的相邻小区的移动性参数。 上述相邻小 区可以是一个， 也可以是多个。 其中， 移动性参数中可以包括： 信号质量 门限， 例如： 对于与源小区频率相同且通信***相同的相邻小区， 信号质 量门限可以是 A3门限 , A3门限是一种信号质量门限，具体是 3GPP 36.331 标准协议中定义的一种测量报告上报事件的门限。 信号质量可以是 RSRP, 或者 RSRQ等。
对于与源小区同频的相邻小区， 移动性参数中还可以包括： TTT时长， 如果相邻小区的信号质量满足预设的信号质量门限的时间超过该 TTT 时 长， 则终端向源基站上报测量报告。
其中， 为了筒要描述本发明提供的小区移动性参数调整方法， 本实施 例以相邻小区为小区 2为例进行介绍。 实际上， 终端进行测量的相邻小区 可以为多个。
51002,终端测量到源小区的信号质量满足预设的信号质量门限，终端 上报源小区满足信号质量事件。
源小区的信号质量门限可以是， 例如： A2事件。
51003,终端测量到源小区的信号质量已经满足预设的信号质量门限的 时间超过预设的 TTT时长， 将源小区的小区标识对应的事件信息由满足信 号质量门限更新为 TTT超时， 并上报测量报告。
51004,终端接收源基站下发的第二测量配置消息，根据第二测量配置 消息对小区 2进行测量， 该第二测量配置消息包含用于进行异频或异*** 频点测量的时间间隙 （GAP ), 以及异频或异***频点的移动性参数。
需要说明的是， 同一频点下的所有小区的移动性参数相同。 因此， 源 基站可以将异频或异***频点测量的时间间隙和异频或异***频点的移动 性参数携带在第二测量配置消息中发送给终端， 以供终端测量与源小区异 频或异***的相邻小区。
终端接收到的源基站下发的第二测量配置信息中包括的异频或异*** 频点的移动性参数中可以包括信号质量门限， 例如： 对于与源小区频率不 同的相邻小区， 信号质量门限可以是 A4门限； 对于与源小区通信***不同 的相邻小区， 信号质量门限可以是 B1 门限。
如果源小区的信号质量满足预设的信号质量门限， 即， 源小区的 A2门 限， 则触发终端测量与源小区频率不同或者通信***不同的小区 2的信号 质量， 如果源小区的信号质量不满足预设的信号质量门限， 则终端不进行 小区 2的信号质量测量操作。
51005, 终端测量到小区 2 的信号质量满足预设的信号质量门限， 将 小区 2的小区标识对应的事件信息由初始状态信息更新为满足信号质量门 限。
其中，若小区 2为源小区的异频小区，则信号质量门限可以为 A4门限； 若小区 2为与源小区的异***小区， 则信号质量门限可以为 B1 门限。
其中， 预设的信号质量门限为源基站下发的测量配置信息中指示的预 设门限。
本实施例中， 默认小区 2的小区标识对应的事件信息初始值为初始状 态信息。 当小区 2的信号质量满足预设的信号质量门限时， 终端将小区 2 的小区标识对应的事件信息， 由初始状态信息更新为满足信号质量门限。
如果终端的多个相邻小区的信号质量都满足预设的信号质量门限， 则 终端将各个相邻小区的小区标识对应的事件信息， 都由初始状态信息更新 为满足信号质量门限。
51006, 终端向源基站上报小区 2的测量报告。
51007, 终端在源小区发生 RLF, 则终端重建 RRC连接， 终端将小区 2的小区标识和小区 2对应的事件信息上报给重建 RRC连接的小区的控制 基站。
可选的， 终端可以将上述小区 2的小区标识和小区 2对应的事件信息 携带在 RLF报告中上报给重建 RRC连接的小区的控制基站。上述重建 RRC 连接的小区为可以是源小区， 也可以不是源小区， 本实施例以重建 RRC连 接的小区不是源小区，且重建 RRC连接的小区和源小区不属于同一基站的 场景为例进行介绍。
本实施例的场景是， 小区 2的信号质量满足预设的信号质量门限， 即 小区 2对应的事件信息已被更新为满足信号质量门限， 终端才在源小区发 生 RLF。 因此， 本实施例的 S1006中， 终端向重建 RRC连接的小区的控 制基站上报的小区 2的事件信息为满足信号质量门限。
需要说明的是， 如果小区 2的信号质量还未满足预设的信号质量门限 时， 终端在源小区发生 RLF, 即 S1002之后直接执行 S1007的情况， 此 时小区 2对应的事件信息仍为初始状态信息。 这种情况下， S1007中终端 向重建 RRC连接的小区的控制基站上报的小区 2的事件信息为初始状态信 息。 如果小区 2的信号质量满足预设的信号质量门限超过设定的时长 TTT 时长后终端在源小区发生 RLF,则终端向重建 RRC连接的小区的控制基站 上报的小区 2的事件信息为 TTT时长。
进一步的，终端还可以向重建 RRC连接的小区的控制基站上报源基站 下发的以下信息中的一个或多个： T310 (具体为判断是否产生 RLF的定时 器）、 N310 (连续上报 Qout的次数， 其中 Qout为判断是否产生失步的信 号质量门限）、 RLC重传最大重传次数， RACH前导最大重传次数等， 以辅 助源基站调整相邻小区的移动性能参数。
51008, 重建 RRC连接的小区的控制基站将终端上报的小区 2的小区 标识和小区 2对应的事件信息转发给源基站。
51009, 源基站根据源小区以及小区 2对应的事件信息调整小区 2的 移动性参数。
S1009中的调整小区 2的移动性参数的方法可参见前述实施例中的详 细内容， 此处不再赘述。
通过本实施例提供的技术方案， 当终端发生 RLF时， 该终端重建 RRC 连接，并向重建 RRC连接的小区的控制基站发送与源小区异频或异***的 相邻小区的小区标识和该终端在发生 RLF前记录的上述相邻小区的事件信 息。以使该重建 RRC连接的小区的控制基站将上述相邻小区的小区标识和 上述相邻小区的事件信息转发给源基站， 进而使该源基站可以根据源小区 经历的事件和上述相邻小区经历的事件， 调整上述相邻小区的移动性参数 并发送给终端。 进而提高移动性参数调整的准确度和终端的切换效率。 需 要说明的是， 如果重建 RRC连接的小区和源小区属于同一基站， 即源基站 可直接获得上述与源小区频率不同或通信***不同的相邻小区的小区标识 和该终端在发生上述连接失败前记录的上述相邻小区的事件信息， 并进行 相邻小区的移动参数调整。
图 11 为本发明实施例提供的一种终端的结构示意图， 如图 11 所示， 该终端 70包括： 检测单元 11、 重建单元 12和发送单元 13。
其中，上述检测单元 11用于检测终端发生连接失败；上述重建单元 12 用于在上述检测单元检测到上述终端发生连接失败时， 重建无线资源控制 RRC连接；上述发送单元 13用于向上述重建 RRC连接的小区的控制基站 发送源小区的小区标识和上述终端在发生上述连接失败前记录的上述源小 区的事件信息； 或者， 向重建 RRC连接的小区的控制基站发送所述源小区 的相邻小区的小区标识和所述终端在发生所述连接失败前记录的所述相邻 小区的事件信息， 所述相邻小区和所述源小区是异频小区或异***小区； 或者， 向重建 RRC连接的小区的控制基站发送源小区的小区标识、 所述终 端在发生所述连接失败前记录的所述源小区的事件信息、 所述源小区的相 邻小区的小区标识和所述终端在发生所述连接失败前记录的所述相邻小区 的事件信息， 所述相邻小区和所述源小区是异频小区或异***小区。
可选地， 上述发送单元 13发送的上述源小区的事件信息包括： 初始状 态信息、 满足信号质量门限， 或者 TTT超时。
可选地，上述发送单元 13发送的相邻小区的事件信息包括以下信息之 一： 初始状态信息、 满足信号质量门限、 TTT超时、 终端接收到切换命令。
可选地， 如果上述检测单元 11检测到的连接失败为该终端在上述源小 区发生 RLF, 那么：
( 1 )如果在该终端发生 RLF前， 上述源小区的信号质量未满足预设 的信号质量门限， 则上述发送单元 13发送的源小区的事件信息为： 初始状 态信息； 或者，
( 2 )如果在该终端发生 RLF前， 上述源小区的信号质量满足预设的 信号质量门限， 则上述发送单元 13发送的源小区的事件信息为： 满足信号 质量门限； 或者，
( 3 )如果在该终端发生 RLF前， 上述源小区的信号质量已经满足预 设的信号质量门限的时间超过预设的 TTT时长， 则上述发送单元 13发送 的源小区的事件信息为： TTT超时。
可选的， 如果上述检测单元 11检测到的连接失败为该终端在上述源小 区发生 RLF, 那么：
( 1 )如果在该终端发生 RLF前， 上述相邻小区的信号质量未满足预 设的信号质量门限， 则上述发送单元 13发送的相邻小区的事件信息为： 初 始状态信息； 或者，
( 2 )如果在该终端发生 RLF前， 上述相邻小区的信号质量满足预设 的信号质量门限， 则上述发送单元 13发送的相邻小区的事件信息为： 满足 信号质量门限； 或者， ( 3 )如果在该终端发生 RLF前， 上述源小区的信号质量满足预设的 信号质量门限， 且上述相邻小区的信号质量已经满足预设的信号质量门限 的时间超过预设的 TTT时长， 则上述发送单元 13发送的相邻小区的事件 信息为： TTT超时。
如果上述检测单元 11 检测到的连接失败为上述终端发生切换失败 HOF, 那么：
( 1 )如果该终端已接收到上述源小区的控制基站发送的切换命令， 则 上述发送单元 13发送的相邻小区的事件信息为： 终端接收到切换命令； 或 者
( 2 )如果在上述检测单元 11检测到该终端发生 HOF时， 该终端已向 切换目标小区的控制基站发送前导消息， 则上述发送单元 13发送的相邻小 区的事件信息为： 终端已发送前导； 或者，
( 3 )如果在上述检测单元检测到上述终端发生 HOF时， 该终端已接 收到切换目标小区的控制基站返回的前导响应消息，则上述发送单元 13发 送的相邻小区的事件信息为： 终端已获取前导响应； 或者，
( 4 )如果在上述检测单元 11检测到上述终端发生 HOF时， 该终端已 向切换目标小区的控制基站发送第一条调度的上行消息， 则上述发送单元 13发送的相邻小区的事件信息为： 终端已发送调度消息； 或者，
( 5 )如果在上述检测单元 11检测到上述终端发生 HOF时， 该终端已 接收到切换目标小区的控制基站返回的沖突解决指示信息， 则上述发送单 元 13发送的相邻小区的事件信息为：终端已收到沖突解决指示信息；或者，
( 6 )如果在上述检测单元检测到上述终端发生 HOF时， 上述终端已 接收到切换目标小区的控制基站下发的配置前导信息， 则上述发送单元 13 发送的相邻小区的事件信息为： 终端已收到配置前导信息。
可选地， 上述发送单元 13还用于， 向上述目标小区的控制基站发送上 述源小区的控制基站下发的下述参数的一个或多个： 用于判断是否产生 RLF 的定时器， 用于判断是否启动上述定时器的失步指示的次数， 用于判 断是否终止上述定时器的同步指示的次数， 无线链路控制层重传最大次数， 前导重传最大次数。
本实施例提供的上述终端可以实现如图 7-10所示方法实施例中终端的 操作内容， 此处不再赘述。 本发明实施例提供的终端， 当发生连接失败时重建 RRC连接， 并向重 建 RRC 连接的小区的控制基站发送源小区的小区标识和该终端在发生上 述连接失败前记录的上述源小区的事件信息； 或者， 向重建 RRC连接的小 区的控制基站发送与源小区频率不同或通信***不同的相邻小区的小区标 识和上述相邻小区的事件信息； 或者， 向重建 RRC连接的小区的控制基站 发送源小区发送源小区的小区标识和上述源小区的事件信息， 以及上述相 邻小区的小区标识和相邻小区的事件信息，以使该重建 RRC连接的小区的 控制基站将终端上报的上述信息转发给源基站， 进而使该源基站可以根据 源小区经历的事件和 /或与源小区异频或异***的相邻小区经历的事件进行 移动性参数的调整， 从而提高移动性参数调整的准确度和终端的切换效率。
图 12为本发明实施例提供的一种基站的结构示意图， 如图 12所示， 该基站 80包括： 接收单元 21和转发单元 22。
其中， 上述接收单元 21用于在终端在发生连接失败并重建 RRC连接 后， 接收终端上报的信息； 上述转发单元 22用于向源小区的控制基站转发 上述接收单元接收到的上述终端上报的信息； 上述终端上报的信息包括： 上述源小区的小区标识和上述终端在发生上述连接失败前记录的上述源小 区的事件信息； 或者包括： 上述源小区的相邻小区的小区标识和终端在发 生连接失败前记录的上述相邻小区的事件信息； 或者包括： 上述源小区的 小区标识、 上述终端在发生上述连接失败前记录的上述源小区的事件信息、 上述源小区的相邻小区的小区标识和终端在发生连接失败前记录的上述相 邻小区的事件信息； 其中， 上述相邻小区和上述源小区是异频小区或异系 统小区。
可选地， 上述接收单元 21获取的上述源小区的事件信息包括： 初始状 态信息、 满足信号质量门限， 或者 TTT超时。
可选地，上述接收单元 21获取的上述相邻小区的事件信息包括以下信 息之一： 初始状态信息、 满足信号质量门限、 TTT超时、 终端接收到切换 命令。
上述上述上述如果上述终端发生连接失败为上述终端在上述源小区发 生无线链路失败 RLF, 贝 |J :
( 1 )如果在上述终端发生 RLF前， 上述源小区的信号质量未满足预 设的信号质量门限，则上述接收单元 21接收到的上述源小区的事件信息为： 初始状态信息； 或者，
( 2 )如果在上述终端发生 RLF前， 上述源小区的信号质量满足预设 的信号质量门限， 则上述接收单元 21接收到的上述源小区的事件信息为： 满足信号质量门限； 或者，
( 3 )如果在上述终端发生 RLF前， 上述源小区的信号质量满足预设 的信号质量门限的时间超过预设的触发时间 TTT时长，则上述接收单元 21 接收到的上述源小区的事件信息为： TTT超时。
如果终端发生连接失败为上述终端在上述源小区发生无线链路失败 RLF, 则：
( 1 )如果在上述终端发生 RLF前， 上述相邻小区的信号质量未满足 预设的信号质量门限， 则上述接收单元 21接收到的上述相邻小区的事件信 息为： 初始状态信息； 或者，
( 2 )如果在上述终端发生 RLF前， 上述相邻小区的信号质量满足预 设的信号质量门限， 则上述接收单元 21接收到的上述相邻小区的事件信息 为： 满足信号质量门限； 或者，
( 3 )如果在上述终端发生 RLF前， 上述相邻小区的信号质量满足预 设的信号质量门限的时间超过预设的触发时间 TTT时长， 则上述接收单元 21接收到的上述相邻小区的事件信息为： TTT超时。
如果上述终端发生连接失败为上述终端发生切换失败 HOF, 贝 |J :
( 1 )在上述终端发生 HOF时， 如果上述终端已接收到上述源小区的 控制基站发送的切换命令， 则上述接收单元 21接收到的上述相邻小区的事 件信息为： 终端接收到切换命令。
( 2 )如果在上述终端发生 HOF时， 上述终端已向切换目标小区的控 制基站发送前导消息， 则上述接收单元 21接收到的上述相邻小区的事件信 息为： 终端已发送前导； 或者，
( 3 )如果在上述终端发生 HOF时， 上述终端已接收到切换目标小区 的控制基站返回的前导响应消息， 则上述接收单元 21接收到的上述相邻小 区的事件信息为： 终端已获取前导响应； 或者，
( 4 )如果在上述终端发生 HOF时， 上述终端已向切换目标小区的控 制基站发送第一条调度的上行消息， 则上述接收单元 21接收到的上述相邻 小区的事件信息为： 终端已发送调度消息； 或者， ( 5 )如果在上述终端发生 HOF时， 上述终端已接收到切换目标小区 的控制基站返回的沖突解决指示信息， 则上述接收单元 21接收到的上述相 邻小区的事件信息为： 终端已收到沖突解决指示信息； 或者，
( 6 )如果在上述终端发生 HOF时， 上述终端已接收到切换目标小区 的控制基站下发的配置前导信息， 则上述接收单元 21接收到的上述相邻小 区的事件信息为： 终端已收到配置前导信息。
本发明实施例提供的基站为终端的源基站， 与图 8所示本发明实施例 提供的小区移动性参数调整方法实施例相对应， 为该方法实施例的执行设 备， 其具体的执行过程可参见方法实施例， 不再赘述。
通过本实施例提供的技术方案，重建 RRC连接的小区的控制基站接收 到终端上报的源小区的小区标识和该终端在发生上述连接失败前记录的上 述源小区的事件信息； 或者， 与源小区频率不同或通信***不同的相邻小 区的小区标识和上述相邻小区的事件信息； 或者， 源小区的小区标识和上 述源小区的事件信息， 以及上述相邻小区的小区标识和相邻小区的事件信 息，重建 RRC连接的小区的控制基站可以将终端上报的上述信息转发给源 小区的控制基站， 进而使该源小区的控制基站可以根据源小区经历的事件 对源小区进行移动性参数调整， 还可以根据源小区经历的事件和与源小区 异频或异***的相邻小区经历的事件对上述相邻小区进行移动性参数的调 整， 从而提高移动性参数调整的准确度和终端的切换效率。
最后应说明的是： 以上实施例仅用以说明本发明的技术方案， 而非对 其限制； 尽管参照前述实施例对本发明进行了详细的说明， 本领域的普通 技术人员应当理解： 其依然可以对前述各实施例所记载的技术方案进行修 改， 或者对其中部分技术特征进行等同替换； 而这些修改或者替换， 并不 使相应技术方案的本质脱离本发明各实施例技术方案的范围。

Claims

权利要求
1、 一种小区信息上报方法， 其特征在于， 包括：
终端发生连接失败；
所述终端重建无线资源控制 RRC连接；
所述终端向重建 RRC 连接的小区的控制基站发送源小区的相邻小区 的小区标识和所述终端在发生所述连接失败前记录的所述相邻小区的事件 信息。
2、 根据权利要求 1所述的方法， 其特征在于， 所述相邻小区的事件信 息包括以下信息之一： 初始状态信息、 满足信号质量门限、 触发时间 TTT 超时、 终端接收到切换命令。
3、 根据权利要求 1或 2所述的方法， 其特征在于，
所述终端发生连接失败为所述终端在所述源小区发生无线链路失败 RLF。
4、 根据权利要求 3所述的方法， 其特征在于，
如果在所述终端发生无线链路失败前， 所述相邻小区的信号质量未满 足预设的信号质量门限， 则所述相邻小区的事件信息为： 初始状态信息； 或者，
如果在所述终端发生无线链路失败前， 所述相邻小区的信号质量满足 预设的信号质量门限， 且触发时间 TTT未超时， 则所述相邻小区的事件信 息为： 满足信号质量门限； 或者，
如果在所述终端发生无线链路失败前， 所述相邻小区的信号质量满足 预设的信号质量门限的时间超过预设的 TTT时长， 则所述相邻小区的事件 信息为： TTT超时。
5、 根据权利要求 1或 2所述的方法， 其特征在于， 所述终端发生连接 失败为所述终端发生切换失败 H〇F。
6、 根据权利要求 5所述的方法， 其特征在于， 在所述终端发生 HOF 时， 如果所述终端已接收到所述源小区的控制基站发送的切换命令， 则所 述相邻小区的事件信息为： 终端接收到切换命令。
7、 根据权利要求 5所述的方法， 其特征在于，
如果在所述终端发生 HOF时，所述终端已向切换目标小区的控制基站 发送前导消息， 则所述相邻小区的事件信息为： 终端已发送前导； 或者， 如果在所述终端发生 HOF时，所述终端已接收到切换目标小区的控制 基站返回的前导响应消息， 则所述相邻小区的事件信息为： 终端已获取前 导响应； 或者，
如果在所述终端发生 HOF时，所述终端已向切换目标小区的控制基站 发送第一条调度的上行消息， 则所述相邻小区的事件信息为： 终端已发送 调度消息； 或者，
如果在所述终端发生 HOF时，所述终端已接收到切换目标小区的控制 基站返回的沖突解决指示信息， 则所述相邻小区的事件信息为： 终端已收 到沖突解决指示信息； 或者，
如果在所述终端发生 HOF时，所述终端已接收到切换目标小区的控制 基站下发的配置前导信息， 则所述相邻小区的事件信息为： 终端已收到配 置前导信息。
8、 根据权利要求 1所述的方法， 其特征在于， 所述方法还包括： 所述 终端向所述重建 RRC 连接小区的控制基站发送所述源小区的控制基站下 发的下述参数中的一个或多个： 用于判断是否产生 RLF的定时器， 用于判 断是否启动所述定时器的失步指示的次数， 用于判断是否终止所述定时器 的同步指示的次数， 无线链路控制层重传最大次数， 前导重传最大次数。
9、 根据权利要求 1 -8任一项所述的方法， 所述重建 RRC连接的小区 为发生切换失败的切换目标小区、 或源小区、 或除所述源小区和所述切换 目标小区之外的第三小区。
10、 一种小区移动性参数调整方法， 其特征在于， 包括：
源小区的控制基站获取终端在发生连接失败后上报的所述源小区的相 邻小区的小区标识和终端在发生连接失败前记录的所述相邻小区的事件信 所述源小区的控制基站根据所述终端在发生所述连接失败前记录的所 述相邻小区的事件信息， 调整所述相邻小区的移动性参数。
11、 根据权利要求 10所述的方法， 其特征在于， 所述源小区和所述终 端在发生连接失败后重建 RRC连接的小区属于同一基站；
所述源小区的控制基站获取终端在发生连接失败后上报的所述源小区 的相邻小区的小区标识和终端在发生连接失败前记录的所述相邻小区的事 件信息包括： 在所述终端重建 RRC连接后 , 所述源小区的控制基站接收所 述终端上>¾的所述源小区的相邻小区的小区标识和终端在发生连接失败前 记录的所述相邻小区的事件信息。
12、 根据权利要求 10所述的方法， 其特征在于， 所述源小区和所述终 端在发生连接失败后重建 RRC连接的小区不属于同一基站；
所述源小区的控制基站获取终端在发生连接失败后上报的所述源小区 的相邻小区的小区标识和终端在发生连接失败前记录的所述相邻小区的事 件信息包括： 在所述终端重建 RRC连接后， 所述源小区的控制基站接收所 述重建 RRC 连接的小区的控制基站转发的所述源小区的相邻小区的小区 标识和终端在发生连接失败前记录的所述相邻小区的事件信息。
13、 根据权利要求 10-12任一所述的方法， 其特征在于， 所述相邻小 区的事件信息包括以下信息之一： 初始状态信息、 满足信号质量门限、 触 发时间 TTT超时、 终端接收到切换命令。
14、 根据权利要求 13所述的方法， 其特征在于， 所述源小区的控制基 站根据所述终端在发生所述连接失败前记录的所述相邻小区的事件信息， 调整所述相邻小区的移动性参数， 包括：
若所述相邻小区的事件信息为初始状态信息的数量超过预设门限， 则 降低所述相邻小区的移动性参数中的信号质量的门限；
若所述相邻小区的事件信息为满足信号质量门限的数量超过预设门 限， 则减小所述相邻小区的移动性参数中的 TTT时长。
15、 一种终端， 其特征在于， 包括：
检测单元， 用于检测终端发生连接失败；
重建单元， 用于在所述检测单元检测到所述终端发生连接失败时， 重 建无线资源控制 RRC连接； 和
发送单元，用于向重建 RRC连接的小区的控制基站发送源小区的相邻 小区的小区标识和所述终端在发生所述连接失败前记录的所述相邻小区的 事件信息。
16、 根据权利要求 15所述的终端， 其特征在于， 所述发送单元发送的 所述相邻小区的事件信息包括以下信息之一： 初始状态信息、 满足信号质 量门限、 触发时间 TTT超时、 终端接收到切换命令。
17、 根据权利要求 15或 16所述的终端， 其特征在于， 所述检测单元 检测到的连接失败为所述终端在所述源小区发生无线链路失败 RLF。
18、 根据权利要求 17所述的终端， 其特征在于，
如果在所述终端发生所述 RLF前， 所述相邻小区的信号质量未满足预 设的信号质量门限， 则所述发送单元发送的相邻小区的事件信息为： 初始 状态信息； 或者，
如果在所述终端发生所述 RLF前， 所述相邻小区的信号质量满足预设 的信号质量门限， 且触发时间 TTT未超时， 则所述发送单元发送的相邻小 区的事件信息为： 满足信号质量门限； 或者，
如果在所述终端发生所述 RLF前， 所述相邻小区的信号质量满足预设 的信号质量门限的时间超过预设的 TTT时长， 则所述发送单元发送的相邻 小区的事件信息为： TTT超时。
19、 根据权利要求 15或 16所述的终端， 其特征在于， 所述检测单元 检测到的连接失败为所述终端发生切换失败 H〇F。
20、根据权利要求 19所述的终端，其特征在于，在所述终端发生 HOF 时， 如果所述终端已接收到所述源小区的控制基站发送的切换命令， 则所 述发送单元发送的相邻小区的事件信息为： 终端接收到切换命令。
21、 根据权利要求 19所述的终端， 其特征在于， 还包括：
如果在所述检测单元检测到所述终端发生 HOF时，所述终端已向切换 目标小区的控制基站发送前导消息， 则所述发送单元发送的相邻小区的事 件信息为： 终端已发送前导； 或者，
如果在所述检测单元检测到所述终端发生 HOF时，所述终端已接收到 切换目标小区的控制基站返回的前导响应消息， 则所述发送单元发送的相 邻小区的事件信息为： 终端已获取前导响应； 或者，
如果在所述检测单元检测到所述终端发生 HOF时，所述终端已向切换 目标小区的控制基站发送第一条调度的上行消息， 则所述发送单元发送的 相邻小区的事件信息为： 终端已发送调度消息； 或者，
如果在所述检测单元检测到所述终端发生 HOF时，所述终端已接收到 切换目标小区的控制基站返回的沖突解决指示信息， 则所述发送单元发送 的相邻小区的事件信息为： 终端已收到沖突解决指示信息； 或者，
如果在所述检测单元检测到所述终端发生 HOF时，所述终端已接收到 切换目标小区的控制基站下发的配置前导信息， 则所述发送单元发送的相 邻小区的事件信息为： 终端已收到配置前导信息。
22、根据权利要求 15所述的终端，其特征在于，所述发送单元还用于， 向重建 RRC 连接的小区的控制基站发送所述源小区的控制基站下发的下 述参数的一个或多个： 用于判断是否产生 RLF的定时器， 用于判断是否启 动所述定时器的失步指示的次数， 用于判断是否终止所述定时器的同步指 示的次数， 无线链路控制层重传最大次数， 前导重传最大次数。
23、根据权利要求 15-22任一项所述的终端，所述重建 RRC连接的小 区为： 发生切换失败的切换目标小区、 或源小区、 或除所述源小区和所述 切换目标小区之外的第三小区。
24、 一种基站， 其特征在于， 包括：
获取单元， 用于获取终端在发生连接失败后上报的所述源小区的相邻 小区的小区标识和终端在发生连接失败前记录的所述相邻小区的事件信
败前记录的所述相邻小区的事件信息， 调整所述相邻小区的移动性参数。
25、 根据权利要求 24所述的基站， 其特征在于， 所述源小区和所述终 端在发生连接失败后重建 RRC连接的小区属于同一基站；
所述获取单元进一步用于： 在所述终端重建 RRC连接后， 接收所述终 端上报的所述源小区的相邻小区的小区标识和终端在发生连接失败前记录 的所述相邻小区的事件信息。
26、 根据权利要求 24所述的基站， 其特征在于， 所述源小区和所述终 端在发生连接失败后重建 RRC连接的小区不属于同一基站；
所述获取单元进一步用于， 在所述终端重建 RRC连接后， 接收所述重 建 RRC 连接的小区的控制基站转发的所述源小区的相邻小区的小区标识 和终端在发生连接失败前记录的所述相邻小区的事件信息。
27、 根据权利要求 24-26任一所述的基站， 其特征在于， 所述获取单 元获取的所述相邻小区的事件信息包括以下信息之一： 初始状态信息、 满 足信号质量门限、 触发时间 TTT超时、 终端接收到切换命令。
28、 根据权利要求 27所述的基站， 其特征在于， 所述调整单元具体用 于： 若所述相邻小区的事件信息为初始状态信息的数量超过预设门限， 则 降低所述相邻小区的移动性参数中的信号质量的门限； 若所述相邻小区的 事件信息为满足信号质量门限的数量超过预设门限， 则减小所述相邻小区 的移动性参数中的 TTT时长。
29、 一种小区信息上报方法， 其特征在于， 包括：
终端发生连接失败；
所述终端重建无线资源控制 RRC连接；
所述终端向重建 RRC 连接的小区的控制基站发送源小区的小区标识 和所述终端在发生所述连接失败前记录的所述源小区的事件信息； 或者， 所述终端向重建 RRC 连接的小区的控制基站发送所述源小区的相邻 小区的小区标识和所述终端在发生所述连接失败前记录的所述相邻小区的 事件信息， 所述相邻小区和所述源小区是异频小区或异***小区； 或者， 所述终端向重建 RRC连接的小区的控制基站发送源小区的小区标识、 所述终端在发生所述连接失败前记录的所述源小区的事件信息、 所述源小 区的相邻小区的小区标识和所述终端在发生所述连接失败前记录的所述相 邻小区的事件信息， 所述相邻小区和所述源小区是异频小区或异***小区。
30、 根据权利要求 29所述的方法， 其特征在于， 所述源小区的事件信 息包括：初始状态信息，或者满足信号质量门限，或者触发时间 TTT超时。
31、 根据权利要求 29所述的方法， 其特征在于， 所述相邻小区的事件 信息包括以下信息之一：初始状态信息、满足信号质量门限、触发时间 TTT 超时、 终端接收到切换命令。
32、 根据权利要求 29-31任一项所述的方法， 其特征在于，
所述终端发生连接失败为所述终端在所述源小区发生无线链路失败 RLF。
33、 根据权利要求 32所述的方法， 其特征在于，
如果在所述终端发生 RLF前， 所述源小区的信号质量未满足预设的信 号质量门限， 则所述源小区的事件信息为： 初始状态信息； 或者，
如果在所述终端发生 RLF前， 所述源小区的信号质量满足预设的信号 质量门限， 则所述源小区的事件信息为： 满足信号质量门限； 或者，
如果在所述终端发生 RLF前， 所述源小区的信号质量满足预设的信号 质量门限的时间超过预设的触发时间 TTT时长， 则所述源小区的事件信息 为： TTT超时。
34、 根据权利要求 32所述的方法， 其特征在于， 如果在所述终端发生 RLF前， 所述相邻小区的信号质量未满足预设的 信号质量门限， 则所述相邻小区的事件信息为： 初始状态信息； 或者， 如果在所述终端发生 RLF前， 所述相邻小区的信号质量满足预设的信 号质量门限， 则所述相邻小区的事件信息为： 满足信号质量门限； 或者， 如果在所述终端发生 RLF前，所述相邻小区的信号质量满足预设的 信号质量门限的时间超过预设的触发时间 TTT时长， 则所述相邻小区的 事件信息为： TTT超时。
35、 根据权利要求 29-31 任一项所述的方法， 其特征在于， 所述终端 发生连接失败为所述终端发生切换失败 H〇F。
36、根据权利要求 35所述的方法，其特征在于，在所述终端发生 HOF 时， 如果所述终端已接收到所述源小区的控制基站发送的切换命令， 则所 述相邻小区的事件信息为： 终端接收到切换命令。
37、 根据权利要求 35所述的方法， 其特征在于，
如果在所述终端发生 HOF时，所述终端已向切换目标小区的控制基站 发送前导消息， 则所述相邻小区的事件信息为： 终端已发送前导； 或者， 如果在所述终端发生 HOF时，所述终端已接收到切换目标小区的控制 基站返回的前导响应消息， 则所述相邻小区的事件信息为： 终端已获取前 导响应； 或者，
如果在所述终端发生 HOF时，所述终端已向切换目标小区的控制基站 发送第一条调度的上行消息， 则所述相邻小区的事件信息为： 终端已发送 调度消息； 或者，
如果在所述终端发生 HOF时，所述终端已接收到切换目标小区的控制 基站返回的沖突解决指示信息， 则所述相邻小区的事件信息为： 终端已收 到沖突解决指示信息； 或者，
如果在所述终端发生 HOF时，所述终端已接收到切换目标小区的控制 基站下发的配置前导信息， 则所述相邻小区的事件信息为： 终端已收到配 置前导信息。
38、 根据权利要求 29所述的方法， 其特征在于， 所述方法还包括： 所 述终端向所述重建 RRC 连接小区的控制基站发送所述源小区的控制基站 下发的下述参数中的一个或多个： 用于判断是否产生 RLF的定时器， 用于 判断是否启动所述定时器的失步指示的次数， 用于判断是否终止所述定时 器的同步指示的次数， 无线链路控制层重传最大次数， 前导重传最大次数。
39、根据权利要求 29-38任一项所述的方法，所述重建 RRC连接的小 区为发生切换失败的切换目标小区、 或所述源小区、 或除所述源小区和所 述切换目标小区之外的第三小区。
40、 一种小区移动性参数调整方法， 其特征在于， 包括：
在终端在发生连接失败并重建 RRC连接后， 重建 RRC连接的小区的 控制基站接收所述终端上报的信息；
所述重建 RRC 连接的小区的控制基站向源小区的控制基站转发所述 终端上报的信息；
所述终端上报的信息包括： 所述源小区的小区标识和所述终端在发生 所述连接失败前记录的所述源小区的事件信息； 或者包括： 所述源小区的 相邻小区的小区标识和终端在发生连接失败前记录的所述相邻小区的事件 信息； 或者包括： 所述源小区的小区标识、 所述终端在发生所述连接失败 前记录的所述源小区的事件信息、 所述源小区的相邻小区的小区标识和终 端在发生连接失败前记录的所述相邻小区的事件信息； 其中， 所述相邻小 区和所述源小区是异频小区或异***小区。
41、 根据权利要求 40所述的方法， 其特征在于， 所述源小区的事件信 息包括： 初始状态信息，或者满足信号质量门限，或者触发时间 TTT超时。
42、 根据权利要求 40所述的方法， 其特征在于， 所述相邻小区的事件 信息包括以下信息之一：初始状态信息、满足信号质量门限、触发时间 TTT 超时、 终端接收到切换命令。
43、 根据权利要求 40-42任一项所述的方法， 其特征在于，
所述终端发生连接失败为所述终端在所述源小区发生无线链路失败 RLF;
如果在所述终端发生 RLF前， 所述源小区的信号质量未满足预设的信 号质量门限， 则所述源小区的事件信息为： 初始状态信息； 或者，
如果在所述终端发生 RLF前， 所述源小区的信号质量满足预设的信号 质量门限， 则所述源小区的事件信息为： 满足信号质量门限； 或者，
如果在所述终端发生 RLF前， 所述源小区的信号质量满足预设的信号 质量门限的时间超过预设的触发时间 TTT时长， 则所述源小区的事件信息 为： TTT超时。
44、 根据权利要求 40-42任一项所述的方法， 其特征在于， 所述终端 发生连接失败为所述终端在所述源小区发生无线链路失败 RLF;
如果在所述终端发生 RLF前， 所述相邻小区的信号质量未满足预设的 信号质量门限， 则所述相邻小区的事件信息为： 初始状态信息； 或者， 如果在所述终端发生 RLF前， 所述相邻小区的信号质量满足预设的信 号质量门限， 则所述相邻小区的事件信息为： 满足信号质量门限； 或者， 如果在所述终端发生 RLF前， 所述相邻小区的信号质量满足预设的 信号质量门限的时间超过预设的触发时间 TTT时长， 则所述相邻小区的事 件信息为： TTT超时。
45、 根据权利要求 40-42任一项所述的方法， 其特征在于， 所述终端 发生连接失败为所述终端发生切换失败 HOF;
在所述终端发生 HOF时，如果所述终端已接收到所述源小区的控制基 站发送的切换命令， 则所述相邻小区的事件信息为： 终端接收到切换命令。
46、 根据权利要求 40-42任一项所述的方法， 其特征在于， 所述终端 发生连接失败为所述终端发生切换失败 HOF;
如果在所述终端发生 HOF时，所述终端已向切换目标小区的控制基站 发送前导消息， 则所述相邻小区的事件信息为： 终端已发送前导； 或者， 如果在所述终端发生 HOF时，所述终端已接收到切换目标小区的控制 基站返回的前导响应消息， 则所述相邻小区的事件信息为： 终端已获取前 导响应； 或者，
如果在所述终端发生 HOF时，所述终端已向切换目标小区的控制基站 发送第一条调度的上行消息， 则所述相邻小区的事件信息为： 终端已发送 调度消息； 或者，
如果在所述终端发生 HOF时，所述终端已接收到切换目标小区的控制 基站返回的沖突解决指示信息， 则所述相邻小区的事件信息为： 终端已收 到沖突解决指示信息； 或者，
如果在所述终端发生 HOF时，所述终端已接收到切换目标小区的控制 基站下发的配置前导信息， 则所述相邻小区的事件信息为： 终端已收到配 置前导信息。
47、 一种终端， 其特征在于， 包括：
检测单元， 用于检测终端发生连接失败； 重建单元， 用于在所述检测单元检测到所述终端发生连接失败时， 重 建无线资源控制 RRC连接；
发送单元，用于向重建 RRC连接的小区的控制基站发送源小区的小区 标识和所述终端在发生所述连接失败前记录的所述源小区的事件信息； 或 者，向重建 RRC连接的小区的控制基站发送所述源小区的相邻小区的小区 标识和所述终端在发生所述连接失败前记录的所述相邻小区的事件信息， 所述相邻小区和所述源小区是异频小区或异***小区； 或者， 向重建 RRC 连接的小区的控制基站发送源小区的小区标识、 所述终端在发生所述连接 失败前记录的所述源小区的事件信息、 所述源小区的相邻小区的小区标识 和所述终端在发生所述连接失败前记录的所述相邻小区的事件信息； 所述 相邻小区和所述源小区是异频小区或异***小区。
48、 根据权利要求 47所述的终端， 其特征在于， 所述发送单元发送的 所述源小区的事件信息包括： 初始状态信息， 或者满足信号质量门限， 或 者触发时间 TTT超时。
49、 根据权利要求 47所述的终端， 其特征在于， 所述发送单元发送的 所述相邻小区的事件信息包括以下信息之一： 初始状态信息、 满足信号质 量门限、 触发时间 TTT超时、 终端接收到切换命令。
50、 根据权利要求 47-49任一项所述的终端， 其特征在于， 所述检测 单元检测到的连接失败为所述终端在所述源小区发生无线链路失败 RLF。
51、 根据权利要求 50所述的终端， 其特征在于，
如果在所述终端发生 RLF前， 所述源小区的信号质量未满足预设的信 号质量门限， 则所述发送单元发送的所述源小区的事件信息为： 初始状态 信息； 或者，
如果在所述终端发生 RLF前， 所述源小区的信号质量满足预设的信号 质量门限， 则所述发送单元发送的所述源小区的事件信息为： 满足信号质 量门限； 或者，
如果在所述终端发生 RLF前， 所述源小区的信号质量满足预设的信号 质量门限的时间超过预设的触发时间 TTT时长， 则所述发送单元发送的源 小区的事件信息为： TTT超时。
52、 根据权利要求 50所述的终端， 其特征在于，
如果在所述终端发生所述 RLF前， 所述相邻小区的信号质量未满足预 设的信号质量门限， 则所述发送单元发送的相邻小区的事件信息为： 初始 状态信息； 或者，
如果在所述终端发生所述 RLF前， 所述相邻小区的信号质量满足预设 的信号质量门限， 则所述发送单元发送的所述相邻小区的事件信息为： 满 足信号质量门限； 或者，
如果在所述终端发生 RLF前， 所述相邻小区的信号质量满足预设的信 号质量门限的时间超过预设的触发时间 TTT时长， 则所述发送单元发送的 相邻小区的事件信息为： TTT超时。
53、 根据权利要求 47-49任一项所述的终端， 其特征在于， 所述检测 单元检测到的连接失败为所述终端发生切换失败 H〇F。
54、根据权利要求 53所述的终端，其特征在于，在所述终端发生 HOF 时， 如果所述终端已接收到所述源小区的控制基站发送的切换命令， 则所 述发送单元发送的相邻小区的事件信息为： 终端接收到切换命令。
55、 根据权利要求 53所述的终端， 其特征在于，
如果在所述检测单元检测到所述终端发生 HOF时，所述终端已向切换 目标小区的控制基站发送前导消息， 则所述发送单元发送的相邻小区的事 件信息为： 终端已发送前导； 或者，
如果在所述检测单元检测到所述终端发生 HOF时，所述终端已接收到 切换目标小区的控制基站返回的前导响应消息， 则所述发送单元发送的相 邻小区的事件信息为： 终端已获取前导响应； 或者，
如果在所述检测单元检测到所述终端发生 HOF时，所述终端已向切换 目标小区的控制基站发送第一条调度的上行消息， 则所述发送单元发送的 相邻小区的事件信息为： 终端已发送调度消息； 或者，
如果在所述检测单元检测到所述终端发生 HOF时，所述终端已接收到 切换目标小区的控制基站返回的沖突解决指示信息， 则所述发送单元发送 的相邻小区的事件信息为： 终端已收到沖突解决指示信息； 或者，
如果在所述检测单元检测到所述终端发生 HOF时，所述终端已接收到 切换目标小区的控制基站下发的配置前导信息， 则所述发送单元发送的相 邻小区的事件信息为： 终端已收到配置前导信息。
56、根据权利要求 47所述的终端，其特征在于，所述发送单元还用于， 向重建 RRC 连接的小区的控制基站发送所述源小区的控制基站下发的下 述参数的一个或多个： 用于判断是否产生 RLF的定时器， 用于判断是否启 动所述定时器的失步指示的次数， 用于判断是否终止所述定时器的同步指 示的次数， 无线链路控制层重传最大次数， 前导重传最大次数。
57、根据权利要求 47-56任一项所述的终端，所述重建 RRC连接的小 区为： 发生切换失败的切换目标小区、 或所述源小区、 或除所述源小区和 所述切换目标小区之外的第三小区。
58、 一种基站， 其特征在于， 包括：
接收单元， 用于在终端在发生连接失败并与所述基站重建 RRC 连接 后， 接收终端上报的信息； 和
转发单元， 用于向源小区的控制基站转发所述接收单元接收到的所述 终端上报的信息；
所述终端上报的信息包括： 所述源小区的小区标识和所述终端在发生 所述连接失败前记录的所述源小区的事件信息； 或者包括： 所述源小区的 相邻小区的小区标识和终端在发生连接失败前记录的所述相邻小区的事件 信息； 或者包括： 所述源小区的小区标识、 所述终端在发生所述连接失败 前记录的所述源小区的事件信息、 所述源小区的相邻小区的小区标识和终 端在发生连接失败前记录的所述相邻小区的事件信息； 其中， 所述相邻小 区和所述源小区是异频小区或异***小区。
59、 根据权利要求 58所述的基站， 其特征在于， 所述获取单元获取的 所述源小区的事件信息包括： 初始状态信息， 或者满足信号质量门限， 或 者触发时间 TTT超时。
60、 根据权利要求 58所述的基站， 其特征在于， 所述获取单元获取的 所述相邻小区的事件信息包括以下信息之一： 初始状态信息、 满足信号质 量门限、 触发时间 TTT超时、 终端接收到切换命令。
61、 根据权利要求 58-60任一项所述的基站， 其特征在于， 所述终端 发生连接失败为所述终端在所述源小区发生无线链路失败 RLF;
如果在所述终端发生 RLF前， 所述源小区的信号质量未满足预设的信 号质量门限， 则所述接收单元接收到的所述源小区的事件信息为： 初始状 态信息； 或者，
如果在所述终端发生 RLF前， 所述源小区的信号质量满足预设的信号 质量门限， 则所述接收单元接收到的所述源小区的事件信息为： 满足信号 质量门限； 或者，
如果在所述终端发生 RLF前， 所述源小区的信号质量满足预设的信号 质量门限的时间超过预设的触发时间 TTT时长， 则所述接收单元接收到的 所述源小区的事件信息为： TTT超时。
62、 根据权利要求 58-60任一项所述的基站， 其特征在于， 所述终端 发生连接失败为所述终端在所述源小区发生无线链路失败 RLF;
如果在所述终端发生 RLF前， 所述相邻小区的信号质量未满足预设的 信号质量门限， 则所述接收单元接收到的所述相邻小区的事件信息为： 初 始状态信息； 或者，
如果在所述终端发生 RLF前， 所述相邻小区的信号质量满足预设的信 号质量门限， 则所述接收单元接收到的所述相邻小区的事件信息为： 满足 信号质量门限； 或者，
如果在所述终端发生 RLF前， 所述相邻小区的信号质量满足预设的 信号质量门限的时间超过预设的触发时间 TTT时长， 则所述接收单元接收 到的所述相邻小区的事件信息为： TTT超时。
63、 根据权利要求 58-60任一项所述的基站， 其特征在于， 所述终端 发生连接失败为所述终端发生切换失败 HOF;
在所述终端发生 HOF时，如果所述终端已接收到所述源小区的控制基 站发送的切换命令， 则所述接收单元接收到的所述相邻小区的事件信息为： 终端接收到切换命令。
64、 根据权利要求 58-60任一项所述的基站， 其特征在于， 所述终端 发生连接失败为所述终端发生切换失败 HOF;
如果在所述终端发生 HOF时，所述终端已向切换目标小区的控制基站 发送前导消息， 则所述接收单元接收到的所述相邻小区的事件信息为： 终 端已发送前导； 或者，
如果在所述终端发生 HOF时，所述终端已接收到切换目标小区的控制 基站返回的前导响应消息， 则所述接收单元接收到的所述相邻小区的事件 信息为： 终端已获取前导响应； 或者，
如果在所述终端发生 HOF时，所述终端已向切换目标小区的控制基站 发送第一条调度的上行消息， 则所述接收单元接收到的所述相邻小区的事 件信息为： 终端已发送调度消息； 或者， 如果在所述终端发生 HOF时，所述终端已接收到切换目标小区的控制 基站返回的沖突解决指示信息， 则所述接收单元接收到的所述相邻小区的 事件信息为： 终端已收到沖突解决指示信息； 或者，
如果在所述终端发生 HOF时，所述终端已接收到切换目标小区的控制 基站下发的配置前导信息， 则所述接收单元接收到的所述相邻小区的事件 信息为： 终端已收到配置前导信息。
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