WO2013107046A1 - 分析链路失败原因的方法及其装置 - Google Patents

分析链路失败原因的方法及其装置 Download PDF

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Publication number
WO2013107046A1
WO2013107046A1 PCT/CN2012/070673 CN2012070673W WO2013107046A1 WO 2013107046 A1 WO2013107046 A1 WO 2013107046A1 CN 2012070673 W CN2012070673 W CN 2012070673W WO 2013107046 A1 WO2013107046 A1 WO 2013107046A1
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WO
WIPO (PCT)
Prior art keywords
base station
user equipment
link failure
link
identifier
Prior art date
Application number
PCT/CN2012/070673
Other languages
English (en)
French (fr)
Inventor
汪巍崴
李兆俊
常宁娟
徐海博
Original Assignee
富士通株式会社
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 富士通株式会社 filed Critical 富士通株式会社
Priority to JP2014552470A priority Critical patent/JP5858173B2/ja
Priority to KR1020147021360A priority patent/KR20140116180A/ko
Priority to KR1020167013527A priority patent/KR101767354B1/ko
Priority to CN201280054584.XA priority patent/CN103918300B/zh
Priority to KR1020167025726A priority patent/KR101722897B1/ko
Priority to PCT/CN2012/070673 priority patent/WO2013107046A1/zh
Priority to EP12866018.0A priority patent/EP2806676B1/en
Publication of WO2013107046A1 publication Critical patent/WO2013107046A1/zh
Priority to US14/322,292 priority patent/US10064071B2/en
Priority to US15/245,920 priority patent/US10075856B2/en

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W24/00Supervisory, monitoring or testing arrangements
    • H04W24/02Arrangements for optimising operational condition
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L43/00Arrangements for monitoring or testing data switching networks
    • H04L43/10Active monitoring, e.g. heartbeat, ping or trace-route
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W24/00Supervisory, monitoring or testing arrangements
    • H04W24/10Scheduling measurement reports ; Arrangements for measurement reports
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W36/00Hand-off or reselection arrangements
    • H04W36/34Reselection control
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W76/00Connection management
    • H04W76/10Connection setup
    • H04W76/18Management of setup rejection or failure
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W76/00Connection management
    • H04W76/10Connection setup
    • H04W76/19Connection re-establishment
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W36/00Hand-off or reselection arrangements
    • H04W36/24Reselection being triggered by specific parameters
    • H04W36/30Reselection being triggered by specific parameters by measured or perceived connection quality data
    • H04W36/305Handover due to radio link failure

Definitions

  • the present invention relates to the field of communications, and in particular, to a method and apparatus for analyzing a cause of link failure.
  • the link failure report is sent to the network side, and then the network side determines the cause of the failure according to the report.
  • the inventor has found that the prior art has a defect in that the network side determines whether it is an error setting problem or a coverage problem of the handover parameter according to the link failure information provided by the terminal, but the current judgment method cannot determine whether The switch preparation failed, resulting in the network side not being properly optimized.
  • the purpose of the embodiments of the present invention is to provide a method for analyzing the cause of a link failure, a base station, and a user equipment.
  • the method can analyze the link failure caused by the handover preparation failure, so that the network side can optimize the network more accurately.
  • a method for analyzing a cause of a link failure includes: the base station where the user equipment observes that the link fails to receive the identifier information sent by the other base station or the user equipment, and the identifier information And including: an identifier related to the user equipment, and/or an identifier of the user equipment in the base station; when the base station determines that the identifier information is stored in the base station, the base station determines that the link failure is caused by a handover preparation failure.
  • a method for analyzing a cause of a link failure includes: after receiving a connection with a user equipment, the base station receives the identifier information sent by the user equipment, where the identifier information includes: The identifier associated with the user equipment, and/or the identifier of the base station where the user equipment is located when the link failure is observed; and the identifier information is sent to the base station where the user equipment is located when the link failure is observed.
  • a method for analyzing a cause of a link failure includes: when a link failure occurs, the user equipment generates identifier information related to the user equipment when performing a connection reestablishment attempt; After the user equipment successfully establishes a connection with the base station, the user equipment sends the identifier information to the base station, where the identifier information includes: an identifier related to the user equipment, and/or the user equipment observes the link The identifier in the base station where the failure occurred.
  • a base station is provided, where the base station is a base station where a user equipment observes a link failure, and includes:
  • a first receiving unit configured to receive identifier information sent by another base station or the user equipment, where the identifier information includes: an identifier related to the user equipment, and/or the user equipment detects a link failure The identifier in the base station where it is located;
  • a first processing unit configured to: when the base station determines that the identifier information is stored in the base station, determine that the link failure is caused by a handover preparation failure.
  • a base station is provided, where the base station includes:
  • a third receiving unit configured to: after the base station successfully establishes a connection with the user equipment, receive the identifier information sent by the user equipment, where the identifier information includes: an identifier related to the user equipment, and/or the user The identifier of the base station where the device is located when the link fails to be observed;
  • a third sending unit configured to send the identification information to the base station where the user equipment is located when the link failure is observed.
  • a user equipment includes: a sixth processing unit, configured to generate and perform a connection re-establishment attempt when a user equipment fails to generate a link Identification information related to the user equipment;
  • a fourth sending unit configured to send the identifier information to the base station after the connection is successfully established with the base station, where the identifier information includes: an identifier related to the user equipment, and/or the user equipment is in the observed chain The identifier in the base station where the road failed.
  • a method for analyzing a cause of a link failure includes: when a user equipment is to be handed over, a base station where the user equipment is located sends a handover request message to all possible target base stations; And a handover preparation failure message returned by the target base station according to the handover request message; and an indication that the handover preparation fails is sent to the user equipment.
  • a method for analyzing a cause of a link failure includes: receiving, by a user equipment, an indication that a handover preparation failure is sent by a base station where the user equipment is located; after the user equipment link fails After the user equipment establishes a connection with the base station or other base station, the user equipment sends an indication that the handover preparation fails.
  • Another aspect of an embodiment of the present invention provides a method for analyzing a cause of a link failure, the method package After the base station and the user equipment are successfully connected, the base station receives an indication that the handover preparation fails to be sent; and the indication that the handover preparation fails is not sent to the base station where the link failure is observed to the user equipment.
  • a base station is provided, where the base station includes:
  • a fifth sending unit configured to send a handover request message to all possible target base stations when the user equipment wants to switch
  • a fourth receiving unit configured to receive a handover preparation failure message returned by the target base station according to the handover request message
  • a seventh processing unit configured to send an indication that the handover preparation fails to the user equipment.
  • a user equipment includes: a sixth receiving unit, configured to receive an indication that a handover preparation failure sent by a base station where the user equipment is located;
  • an eighth processing unit configured to: after the link fails, the user equipment establishes a connection with the base station or another base station, and sends an indication that the handover preparation fails.
  • a base station is provided, where the base station includes:
  • a seventh receiving unit configured to receive, after the base station successfully connects with the user equipment, an indication that the handover preparation failed to be sent by the user equipment;
  • a ninth processing unit configured to send the indication that the handover preparation fails to or to the base station where the user equipment observes that the link fails.
  • Another aspect according to an embodiment of the present invention provides a computer readable program, wherein when the program is executed in a base station, the program causes the computer to perform the method of analyzing the cause of the link failure as described above in the base station.
  • a storage medium storing a computer readable program, wherein the computer readable program causes a computer to perform a method of analyzing a cause of link failure as described above in a base station.
  • Another aspect according to an embodiment of the present invention provides a computer readable program, wherein when the program is executed in a user device, the program causes the computer to perform the method of analyzing the cause of the link failure as described above in the user device.
  • a storage medium storing a computer readable program, wherein the computer readable program causes a computer to perform a method of analyzing a cause of link failure as described above in a user equipment.
  • the beneficial effects of the embodiment of the present invention are: analyzing the link failure caused by the failure of the handover preparation, Thereby, the network side can optimize the network more accurately, and solve the problems existing in the prior art.
  • Embodiment 1 is a method for analyzing a link failure reason according to Embodiment 1 of the present invention
  • Embodiment 2 is a method for analyzing a link failure reason according to Embodiment 2 of the present invention
  • Embodiment 3 is a method for analyzing a link failure reason according to Embodiment 3 of the present invention.
  • FIG. 4A is a diagram of a method for analyzing a link failure reason according to Embodiment 4 of the present invention.
  • Embodiment 4B is a method for analyzing a link failure reason according to Embodiment 5 of the present invention.
  • 4C is a method for analyzing a link failure reason according to Embodiment 6 of the present invention.
  • FIG. 5 is a flowchart of a process for a user equipment to perform a connection reestablishment attempt with a neighboring base station according to Embodiment 4 of the present invention
  • FIG. 6 is a flowchart of a process for establishing an RRC connection between a user equipment and a base station according to Embodiment 4 of the present invention
  • Figure 8 is a block diagram showing the structure of a base station according to Embodiment 8 of the present invention.
  • Figure 9 is a block diagram showing the structure of a base station according to Embodiment 9 of the present invention.
  • FIG. 10 is a schematic structural diagram of a user equipment according to Embodiment 10 of the present invention.
  • Embodiment 11 is a method of analyzing a link failure reason according to Embodiment 11 of the present invention.
  • FIG. 12 is a flowchart of a method for analyzing a link failure according to Embodiment 12 of the present invention.
  • FIG. 13 is a method of analyzing a link failure reason according to Embodiment 13 of the present invention
  • 14A is a flowchart of analyzing a link failure cause according to Embodiment 14 of the present invention
  • FIG. 14C is a flowchart of analyzing the cause of link failure in Embodiment 16 of the present invention.
  • Figure 15 is a block diagram showing the structure of a base station according to Embodiment 17 of the present invention.
  • FIG. 16 is a schematic diagram showing the structure of a user equipment according to Embodiment 18 of the present invention.
  • Figure 17 is a block diagram showing the configuration of a base station in Embodiment 19 of the present invention.
  • the network side determines whether the handover parameter is incorrectly set or the coverage problem according to the link failure information provided by the terminal.
  • the existing scheme cannot judge that some link failures are caused by the failure of the handover preparation, resulting in an error on the network side. Therefore, the embodiment of the present invention can provide relevant information to the network side, so that the network side can distinguish the link failure caused by the failure of the handover preparation, which can help optimize network performance.
  • Embodiment 1 is a method for analyzing a link failure reason according to Embodiment 1 of the present invention, for a base station where a user equipment UE observes a link failure (the base station is also a base station where the user equipment is located before the user equipment link fails), After the user equipment link fails, if the base station is successfully connected again, the base station is also a base station that successfully establishes a connection with the user equipment.
  • the method includes:
  • Step 101 The user equipment that the UE detects that the link fails to receive the identifier information sent by the other base station or the user equipment, where the identifier information includes: an identifier related to the user equipment, and/or the user equipment is in the base station. Identification
  • the identifier information is information used by the user equipment when performing a connection reestablishment attempt after a link failure
  • the base station After the user equipment link fails, the base station receives the connection after successfully establishing a connection with the base station again.
  • the identification information sent by the user equipment in addition, after the user equipment link fails, and the connection with the other base station is successfully established, the other base station obtains the identification information from the user equipment.
  • the identifier related to the user equipment may be a unique identifier list related to the user equipment, for example, a shortMAC-I list, see 3GPP TS36.331;
  • the identifier of the user equipment in the base station may be a temporary identifier of a cell radio network (C-RNTI, Cel l
  • Radio Network Temporary Identifier
  • the identifier information may be directly sent to the base station by the other base station or the user equipment. In this embodiment, the identifier information may be included in any one of the messages and sent to the base station.
  • the identifier information may be included in the link failure indication message and sent to the base station;
  • the other base station or the user equipment may also include the identifier information in the link failure report (RLF).
  • RLF link failure report
  • the link failure report is included in the link failure indication message and sent to the base station; in this case, the link failure report may include other information, such as a chain, in addition to the foregoing identification information.
  • the measurement information of the local cell and the neighboring cell, the location information of the user equipment, the speed information, and the like are similar to the information included in the prior art, and are not described here.
  • Step 102 When the user equipment that observes that the link fails, the base station determines that the identifier information is stored in the base station, the base station determines that the link failure is caused by the handover preparation failure.
  • the search may be performed in a locally stored information list to see whether the information is stored in the information list.
  • the identification information if it exists, is considered to be caused by the failure of the handover preparation.
  • the base station where the user equipment observes the link failure can use the received identification information and the information stored in advance to determine that the link failure is caused by the handover preparation failure, instead of the handover parameter.
  • the setting problem or the coverage problem or the like is caused, so that the base station can ignore the link failure message, which helps to optimize the network more accurately.
  • Embodiment 2 is a method for analyzing a link failure reason according to Embodiment 2 of the present invention, where a base station that successfully establishes a connection with a user equipment after a link failure of a user equipment UE occurs, the base station is not a base station where the user equipment observes a link failure. It may be a base station or a non-adjacent base station adjacent to the base station where the user equipment observes the link failure.
  • the method includes:
  • Step 201 After successfully establishing a connection with the user equipment, the base station receives the identifier information sent by the user equipment,
  • the identifier information includes: an identifier related to the user equipment, and/or an identifier in the base station where the user equipment observes that the link fails;
  • the identifier information is used by the user equipment to perform a connection reestablishment attempt after the link fails.
  • the user equipment After the link fails, the user equipment performs a connection reestablishment attempt with the base station, and the user equipment
  • the base station performing the connection re-establishment attempt may be any base station, such as the base station where the user equipment observes the link failure, the base station adjacent to the base station where the user equipment observes the link failure, or other base stations not adjacent.
  • Step 202 The base station sends the identifier information to the base station where the user equipment observes that the link fails.
  • the base station may directly send the identifier information to the user equipment to observe the link failure.
  • the base station, or the identifier information is included in the link failure report, and is sent to the base station where the link failure is observed by the user equipment, as described in Embodiment 1, and details are not described herein again;
  • the link failure report may be detected by the link failure indication (RLF Indication) message to the user equipment. Send by base station;
  • the base station where the user equipment observes the link failure can use the obtained identification information and the locally saved information to determine whether the link failure is a failure of the handover preparation, as described in Embodiment 1, and details are not described herein again. .
  • FIG. 3 is a method for analyzing a link failure reason according to Embodiment 3 of the present invention.
  • the user equipment UE may perform a connection reestablishment attempt or establish a connection with any base station, for example, the user equipment observes The base station where the link fails, the base station adjacent to the base station where the user equipment observes the link failure, or other base stations that are not adjacent.
  • the method includes:
  • Step 301 After the link failure occurs, the user equipment generates identifier information related to the user equipment when performing a connection reestablishment attempt.
  • the base station that performs the reestablishment attempt with the user equipment may be any base station, as described above, and details are not described herein again;
  • the base station where the user equipment is located initiates a handover request to all possible target base stations of the user equipment, a suitable target base station cannot be selected, and thus the handover command cannot be sent to the user equipment, so that the user equipment UE Cell selection can be performed, and then a connection reestablishment attempt is made with the selected base station, at the weight
  • the identification information related to the user equipment is generated during the establishment attempt, and the identifier information includes information as described in Embodiments 1 and 2, for example, including shortMAC_I, and/or C-RNTI; wherein, for different user equipments , the shortMAC-I is different; for the same user equipment, the shortMAC-I is different for different target cells;
  • the target base station is a base station adjacent to the base station where the user equipment observes the link failure; wherein the user equipment UE and the base station reestablish a radio resource control (RRC) connection, and the specific process thereof
  • RRC radio resource control
  • Step 302 After the user equipment successfully establishes a connection with the base station, the user equipment sends the identifier information to the base station.
  • the user equipment may perform cell selection and selection after a certain period of time.
  • a base station successfully establishes a connection and the base station that successfully establishes a connection with the user equipment may be any base station, such as the base station where the user equipment observes the link failure, and a base station adjacent to the base station where the user equipment observes the link failure. Or non-adjacent base stations;
  • the manner in which the user equipment sends the identifier information is as described in Embodiments 1 and 2, and the identifier information may be directly sent to the base station by using any message, or the identifier information may be included in the link failure.
  • the indication message is sent to the base station, and the link failure report including the identifier information may be included in the indication message and sent to the base station.
  • the user equipment sends the identifier information to the base station, where the identifier information is information used by the user equipment to perform a reestablishment attempt, so that the base station receives the information.
  • the identifier information may be sent to the base station where the user equipment observes that the link fails, so that the base station where the user equipment observes that the link fails may use the received identification information and pre-stored locally.
  • the information to determine that the link failure is caused by the handover preparation failure, rather than the handover parameter setting problem or the coverage problem, etc., so that the base station can ignore the link failure message, which helps to optimize the network more accurately.
  • the base station where the user equipment UE is located is the base station A.
  • the neighboring base station of the base station A may The base station B and the base station C are included.
  • the number of the neighboring base stations may be more than two, and the analysis process is similar to the case of including two neighboring base stations, where the neighboring base station includes the base station B and the base station.
  • C is an example for explanation.
  • the UE after the link failure of the UE occurs, the UE performs connection reestablishment with the base station B through cell selection. After the connection reestablishment fails, the UE successfully establishes a connection with the base station B through cell selection.
  • a base station that performs a reestablishment connection attempt with the user equipment and successfully establishes a connection it may be any base station, for example, base station A; other base stations adjacent to base station A, such as base station C; not adjacent to base station A Other base stations.
  • Step 401 A user equipment UE sends a measurement report to a base station A where it is located;
  • the user equipment UE when the triggering event occurs, the user equipment UE sends a measurement report to the local base station A; for example, the triggering event is: the difference between the signal quality of the base station B minus the signal quality of the base station A is greater than a certain Threshold value
  • the measurement report may include the measurement result of the local cell, the measurement result of the neighboring cell, and the like, and is similar to the prior art, and details are not described herein again.
  • Step 402, 402 ' when the user equipment UE needs to perform handover, the base station A where the user equipment UE is located will send a handover request to multiple target base stations;
  • the target base station is a base station adjacent to the base station A, such as the base station B and the base station C, and the base station A sends a handover request to the neighboring base station B and the base station C.
  • Step 403, 403 ' after receiving the handover request, the base station B and the base station C return a handover preparation failure message to the base station A.
  • Step 404 After receiving the handover preparation failure message, the base station A records the identifier information of the UE, where the identifier information includes: an identifier related to the UE, and/or an identifier of the UE in the base station A;
  • the base station A may record the identifier information in the identifier information list.
  • the identifier related to the UE may be a unique identifier list related to the UE, for example, a shortMAC-I list, as shown in Table 1. Shown.
  • Each identifier in the list corresponds to a cell of the target base station; the identity of the UE in base station A, for example, may be C-RNTI, may be stored in another list of identification information.
  • Step 405 After the UE link fails, the UE performs a connection reestablishment attempt.
  • an RRC connection re-establishment attempt is performed, for example, a connection re-establishment attempt is performed by the cell selection with the base station B, and the connection re-establishment process is as shown in FIG. 5, which will be described in detail below, and will not be described again here;
  • identification information for the base station B such as shortMAC_I, C-RNTI, is generated, but since there is no context of the UE in the base station B, the connection reestablishment fails.
  • Step 406 The UE successfully establishes an RRC connection with the base station.
  • the UE after the link fails, the UE establishes a connection with the base station after a period of time, for example, establishing a connection with the base station B through cell selection, and the connection establishment process is as shown in FIG. 6, which is described in detail below. , will not repeat them here.
  • Step 407 After the UE and the base station B successfully establish an RRC connection, the UE sends, to the network side (ie, the base station B), the identifier information generated when the connection reestablishment attempt is made when the link fails.
  • the network side ie, the base station B
  • the UE may send the identifier information directly to the base station B by using any message, or may send the identifier information to the base station B in the link failure report;
  • the identifier information is sent to the base station B in the link failure indication message, and the link failure indication message carries a unique identifier related to the UE generated when the connection reestablishment attempt is performed.
  • a unique identifier related to the UE generated when the connection reestablishment attempt is performed For example, shortMAC-I, and/or an identifier used by the UE in base station A where a link failure occurs, such as C-RNTI o
  • Step 408 After receiving the identifier information, the base station B sends the identifier information to the base station A, that is, the base station where the UE fails when the link fails;
  • the base station B sends the identification information to the base station A through a link failure indication message
  • the link failure report including the identifier information may also be included in the link failure indication message and sent to the base station A.
  • Step 409 The base station A receives the link failure indication message sent by the base station B. If it is determined that the identifier information included in the indication message is recorded in the base station A, the base station A ignores the link failure indication.
  • the base station A performs a search in the pre-stored identification information list, and determines whether the identifier information included in the link failure indication exists in the identifier information list. If yes, the link failure of the UE is Caused by a failure in handover preparation, so that the network can be accurately optimized.
  • Step 410 The base station A deletes the identifier information corresponding to the user equipment.
  • the deletion is performed.
  • the identifier related to the UE in the identifier information is the list shown in Table 1
  • the deletion is performed.
  • the base station also deletes the C_RNTI.
  • the list of identification information about the UE recorded by the base station A is also deleted in the following cases, as exemplified below.
  • Example 1 in step 403, 403 ', after all the handover requests related to the UE are rejected, the UE completes a successful handover preparation at the same base station, that is, the base station A, that is, it is sent at the base station A where it is located.
  • the base station side After the handover request, when the target base station (neighboring base station B or C) replies with the handover request reply message, the base station side records the identity list of the UE (as shown in Table 1) and/or the base station where the UE fails the link failure.
  • the identifier used in A is deleted;
  • the method further includes: the base station A sends the handover request to the neighboring base station again; when receiving the handover request reply message returned by the neighboring base station, deleting the The information stored in the base station; wherein, the neighboring base station is a base station B or a base station (:.
  • Example 2 After the identification information is recorded in step 404, when the recorded identification information is stored at the base station A for a certain period of time, the list of identification information about the UE recorded by the base station side (Table 1) and/or the UE is occurring. The identifier used in the base station A where the link fails is deleted;
  • the method further includes: when the storage time of the information stored in the base station A exceeds a predetermined time, the base station A deletes the stored information.
  • Figure 4B shows a method for analyzing the cause of link failure in Embodiment 5 of the present invention.
  • the difference from the embodiment 4 shown in Fig. 4A is the steps 406', 407' and 409', and the other steps are similar to those of the embodiment 4.
  • Step 406 ′ in this embodiment, the user equipment UE link fails, and after a period of time, it establishes a connection with the base station, for example, establishes a connection with the base station A through cell selection, and the connection establishment process is shown in FIG. 6 .
  • the user equipment UE link fails, and after a period of time, it establishes a connection with the base station, for example, establishes a connection with the base station A through cell selection, and the connection establishment process is shown in FIG. 6 .
  • FIG. 6 As shown in the following, a detailed description will be given below, and details are not described herein again.
  • Step 407 ′ after the UE successfully establishes an RRC connection with the base station A, the UE sends the identifier information generated when the connection reestablishment attempt is made when the link failure occurs to the network side (ie, the base station A).
  • Step 409 ′ after receiving the identifier information, the base station A determines that the identifier information included in the indication message has been recorded in the base station A, and the base station A ignores the link failure indication.
  • FIG. 4C is a diagram of a method for analyzing a link failure reason according to Embodiment 6 of the present invention.
  • the difference from the embodiment 4 shown in FIG. 4A is that, in step 406, in the embodiment, the user equipment UE link fails, and after a period of time, it establishes a connection with the base station. For example, establishing a connection with the base station D through cell selection, where the base station D is a base station not adjacent to the base station A, and the connection establishment process and the connection establishment process shown in FIG. Like, no longer repeat here.
  • Step 407 after the UE successfully establishes an RRC connection with the base station D, the UE sends the identifier information generated when the connection reestablishment attempt is made when the link fails, to the network side (ie, the base station D).
  • Step 408 " the base station D is After receiving the identifier information, for example, the identifier information is included in the link failure indication message and sent to the base station A.
  • Other steps are similar to those of Embodiment 4, and are not described herein again.
  • the base station A, the neighboring base station B, and the non-adjacent base station D, which are successfully established with the UE are described as an example.
  • the base station that performs the connection reestablishment attempt with the UE is the neighboring base station B as an example, and the other base stations are similar, and are not described herein again.
  • FIG. 5 is a flowchart of a process of a connection reestablishment attempt by a user equipment and a neighboring base station according to Embodiment 4 of the present invention. As shown in Figure 5, the method includes:
  • Step 501 the UE performs cell selection.
  • Step 502 In step 501, if the UE selects the base station B, the UE generates related information in the RRC connection reestablishment request message sent to the base station B, where the related information includes user identification information for the base station B.
  • the identifier information is shortMAC-I, and the UE identifies the C-RNTI in the base station A.
  • Step 503 The UE sends an RRC connection reestablishment request to the base station B, where the RRC connection reestablishment request includes the generated identifier information.
  • Step 504 because the base station B does not have the context of the UE, the base station B feeds back the RRC connection reestablishment reject message to reject the reestablishment request.
  • FIG. 6 is a flowchart of a process in which a user equipment establishes an RRC connection with a base station according to Embodiment 4 of the present invention. As shown in Figure 6, it includes:
  • Step 600 performing cell selection
  • Step 601 The UE sends an RRC connection request to the selected base station B.
  • Step 602 After receiving the RRC connection request, the base station B returns an RRC connection setup message to the UE.
  • the identifier information may be sent to the base station.
  • the information that is used by the user equipment to perform a re-establishment attempt after the link fails, so that after the base station obtains the identification information, the identifier information may be observed to the user equipment when the link fails.
  • the base station transmits, therefore, the base station can use the received identification information and information stored in advance to determine that the link failure is caused by a handover preparation failure, instead of being caused by a setting problem or a coverage problem of the handover parameter, thereby The base station can ignore the link failure message, which helps to optimize the network more accurately.
  • the base station A can also manage the recorded information, delete redundant information in time, and save the storage space of the base station.
  • the embodiment of the invention further provides a base station and a user equipment, as described in the following embodiments.
  • the method for solving the problem between the base station and the user equipment is similar to the method for analyzing the failure of the link based on the base station and the user equipment. Therefore, the implementation of the base station and the user equipment can refer to the implementation of the method, and the repeated description is not repeated.
  • FIG. 7 is a block diagram showing the structure of a base station according to a seventh embodiment of the present invention.
  • the base station is the base station where the user equipment observes the link failure (the base station is also the base station where the user equipment is located before the user equipment link fails), and the base station may also succeed with the user equipment again after the UE link fails.
  • Establishing a connected base station as shown in FIG. 7, the base station includes: a first receiving unit 701 and a first processing unit 702;
  • the first receiving unit 701 is configured to receive the identifier information sent by the other base station or the user equipment, where the identifier information includes: an identifier related to the user equipment, and/or an identifier in the base station where the user equipment observes that the link fails;
  • the function is as described in step 101 of the embodiment, and the specific identification information is as described in Embodiment 1-4, and details are not described herein again.
  • the first processing unit 702 is configured to determine, when the base station determines that the identifier information is stored in the base station, that the link failure is caused by a handover preparation failure.
  • the manner in which the other base station or the user equipment sends the identifier information is as described in Embodiment 1.
  • the identifier information is included in a link failure indication message, or The identification information is included in the link failure indication message sent in the link failure indication message.
  • the identifier information related to the user equipment may be a unique identifier related to the user equipment, such as shortMAC-I, where the user equipment observes that the link fails.
  • the identifier in the base station may be a C-RNTI; in addition, the identifier information is when the user equipment performs a connection re-establishment attempt.
  • the information used; the base station that performs the connection reestablishment attempt with the user equipment may be any base station, as described in the foregoing embodiment, and details are not described herein again.
  • the first processing unit 702 may perform a search in the locally stored identification information list to see whether the identification information is stored in the identification information list, and if yes, This link failure is caused by a failure to prepare for handover.
  • the base station may further include a storage unit 703 for storing a list of identification information related to the user equipment.
  • the first processing unit 702 ignores the link failure report, so that the base station does not determine the link failure reason as the handover parameter setting. Or coverage issues cause the network side to optimize the network more accurately.
  • the base station can use the received identification information and information stored in advance to determine that the link failure is caused by a handover preparation failure, instead of being caused by a setting problem or a coverage problem of the handover parameter, thereby The base station can ignore the link failure message, which helps to optimize the network more accurately.
  • FIG. 8 is a block diagram showing the structure of a base station according to Embodiment 8 of the present invention.
  • the base station is a base station where the user equipment observes the link failure.
  • the base station may also be a base station that successfully establishes a connection with the user equipment again after the UE link fails.
  • the base station includes:
  • the receiving unit 801, the first processing unit 802, and the storage unit 803 are similar to the embodiment 5, and are not described herein again.
  • the base station may further include: a second processing unit 804, configured to: when the first processing unit 802 determines that the identifier information is pre-existing in the base station, deleting the identifier information stored in the base station .
  • the base station can manage the information stored by it, saving its storage space.
  • the base station may first obtain the pre-stored identification information, that is, when the user equipment needs to be handed over, the base station where the user equipment is located (such as the base station A) simultaneously sends all possible target base stations of the user equipment, that is, the phase.
  • the neighboring base station such as base station B and base station C
  • the base station where it is located will be simultaneously
  • the base station sends a handover request. For example, for each handover request, the base station receives a corresponding handover preparation failure message, and the base station where the user equipment is located (such as base station A in FIG.
  • Information (such as a unique identifier associated with the terminal corresponding to all possible target base stations, such as a short MAC-I list, and/or an identifier of the terminal in base station A, such as C_RNTI).
  • the base station further includes: a first sending unit 805 and a third processing unit 806;
  • the first sending unit 805 is configured to: before the link fails, when the user equipment is to be handed over, the base station sends a handover request to all possible target base stations;
  • the third processing unit 806 is configured to: when receiving the handover preparation failure message returned by the target base station, storing the following identifier information: an identifier related to the user equipment, and/or an identifier of the user equipment in the base station; The information is stored in the storage unit 803 in a list manner.
  • the base station may further include: a unit for sending a handover request to the target base station, and a unit for receiving a handover preparation failure message returned by the neighboring base station according to the handover request, and to the user equipment.
  • the unit that sends the switching command is similar to the prior art and will not be described here.
  • the base station further includes a fourth processing unit 807, where the fourth processing unit 807 is configured to delete the stored identifier information when the storage time of the identifier information stored in the base station exceeds a predetermined time. .
  • the base station before all the handover requests related to the user equipment are rejected before the link fails (the base station receives the corresponding handover preparation failure message for each handover request), the user equipment completes once under the same base station.
  • Successful handover preparation for example, when the base station A in which it is located sends a handover request, the target base station B replies with a handover request reply message
  • the base station further includes: a second transmission unit and a fifth processing unit ( Not shown in the figure), where
  • a second sending unit configured to: after the base station receives the handover preparation failure message returned by the target base station, send a handover request to the neighboring base station; and the fifth processing unit is configured to: when receiving the handover request reply message returned by the target base station, deleting Identification information stored in the base station.
  • the specifically deleted identification information is as described in Embodiments 1-4, and details are not described herein again.
  • the base station can use the received identification information and information stored in advance to determine that the link failure is caused by a handover preparation failure, instead of being caused by a setting problem or a coverage problem of the handover parameter, thereby The base station can ignore the link failure message, which helps to optimize the network more accurately. In addition, it can manage the stored information and save storage space.
  • FIG 9 is a block diagram showing the structure of a base station according to a ninth embodiment of the present invention.
  • the base station is a base station that re-establishes a connection with the UE after the user equipment link fails.
  • the base station may be a neighboring base station of the base station A, such as the base station B and the base station C, or may be the base station A (see Embodiment 7). And 8), may not be adjacent base stations.
  • the base station includes: a third receiving unit 901 and a third sending unit 902.
  • the third receiving unit 901 is configured to receive the user equipment after the base station successfully establishes a connection with the user equipment.
  • the identifier information that is sent where the identifier information includes: an identifier related to the user equipment, and/or an identifier in the base station where the user equipment is located when the link failure is observed, and the identifier information is that the user equipment is The information used in the connection reestablishment attempt after the link fails;
  • the third sending unit 902 is configured to send the identifier information to the base station where the user equipment is located when the link failure is observed.
  • the UE may directly send the identifier information to the base station, and send the identifier information to the link failure indication message.
  • the user equipment may also send the identifier to the base station by using a link failure indication message in the link failure report.
  • the third receiving unit 901 is configured to receive the link failure indication sent by the user equipment. a message, the identifier information in the link failure report is obtained from the message; the third sending unit 902 is configured to report the link failure report that includes the identifier information to the user equipment through the link failure indication message. The base station where the road failed is sent.
  • the base station may further include a unit for establishing a connection with the user equipment, and the process of establishing the connection is similar to the prior art, as described in the embodiment and FIG. 6, and details are not described herein again.
  • the base station may further include a unit for receiving a handover request sent by the base station where the user equipment fails to generate a link, and a unit for returning the handover preparation failure message according to the handover request.
  • the base station may send the identifier information of the user equipment to the base station where the user equipment observes that the link fails, so that the base station where the user equipment observes the link failure uses the identifier information and the The stored information determines whether the handover preparation fails, thereby accurately determining the cause of the link failure, and is beneficial to network performance optimization.
  • FIG. 10 is a block diagram showing the structure of a user equipment according to Embodiment 10 of the present invention.
  • the user equipment includes: a sixth processing unit 1001 and a fourth sending unit 1002;
  • the sixth processing unit 1001 is configured to generate identifier information related to the user equipment when performing a connection reestablishment attempt with the base station that performs the connection reestablishment attempt when the user equipment fails to generate a link, where the identifier information is as in the foregoing embodiment. The description is not repeated here.
  • the fourth sending unit 1002 is configured to send the identifier information to the base station after successfully establishing a connection with the base station, where the identifier information may be sent to the base station by using a link failure indication message, or the identifier information may be included in the chain.
  • the path failure report is sent to the base station by using a link failure indication message, as described in the foregoing embodiment, and details are not described herein again.
  • the base station that performs the connection re-establishment attempt or the connection is successfully established with the user equipment may be any base station, as described in the foregoing embodiment, and details are not described herein again.
  • the user equipment may further include a connection establishing unit for establishing a connection with the other base station, and the process of establishing the connection is similar to the prior art, as described in Embodiment 4 and FIG. 6, and details are not described herein again.
  • the user equipment may further include a connection reconstruction unit, configured to reestablish a connection with the base station A, or a base station adjacent to the base station A or a non-adjacent base station when the user equipment fails to link, and the reconstruction process is
  • a connection reconstruction unit configured to reestablish a connection with the base station A, or a base station adjacent to the base station A or a non-adjacent base station when the user equipment fails to link, and the reconstruction process is The techniques are similar, as described in Embodiment 4 and FIG. 5, and are not described herein again.
  • the identifier information may be sent to the base station, and the base station sends the identifier information to the base station where the user equipment observes that the link fails, so that the user
  • the base station where the device observes the link failure uses the identification information and the information stored therein to determine whether the handover preparation fails, thereby accurately determining the cause of the link failure, which is beneficial to network performance optimization.
  • Figure 11 is a diagram showing the method of analyzing the cause of link failure in Embodiment 11 of the present invention.
  • the method includes:
  • Step 1101 When the user equipment needs to perform handover, the base station where the user equipment is located sends a handover request message to all possible target base stations.
  • a base station initiates a handover request to all possible target base stations of a user equipment (neighboring base stations, for example, base station B and base station C shown in FIGS. 4A-4C), it cannot select a suitable one.
  • the target base station so that the handover command cannot be sent to the user equipment.
  • the base station where the user equipment is located sends a handover request to multiple base stations at the same time;
  • Step 1102 Receive a handover preparation failure message returned by the target base station according to the handover request message.
  • Step 1103 The base station sends an indication that the handover preparation fails to the user equipment.
  • the base station receives a corresponding handover preparation failure message, and the base station where the user equipment is located (such as base station A in FIG. 4A) sends a message to the user equipment. An indication that the switch preparation failed.
  • the user equipment selects a cell and establishes a connection with the base station of the cell.
  • the base station that establishes a connection with the user equipment may be any base station, such as the base station where the user equipment observes the link failure.
  • the method may further include: after the user equipment successfully establishes a connection with the base station, The base station receives an indication that the handover preparation fails to be sent by the user equipment. This step is an optional step.
  • the base station that establishes a connection with the user equipment may also be other base stations (base stations adjacent or not adjacent to the base station).
  • the method may further include: after the user equipment successfully establishes a connection with another base station, the base station receives an indication that the handover preparation fails to be sent by another base station. This step is an optional step.
  • the base station receives a link failure indication sent by the user equipment or the other base station that includes the indication that the handover preparation fails, and the base station ignores The link failure indication.
  • Figure 12 is a diagram showing the method of analyzing the cause of link failure in Embodiment 12 of the present invention.
  • the method includes:
  • Step 1201 The user equipment receives an indication that the handover preparation fails to be sent by the base station where the user equipment is located.
  • Step 1202 After the link fails, the user equipment sends a connection with the base station or other base station, and sends the information to the base station or other base station. The indication that the handover preparation failed.
  • the indication that the handover preparation fails may be sent to the base station or other base station by using a link failure indication message in the link failure report, or may not be included in the link failure report together with the link failure report. It is included in the link failure indication message and sent to the base station or other base station.
  • the method may further include: the user equipment performs a connection reestablishment attempt with the base station, and the connection fails.
  • the base station that performs the connection reestablishment attempt with the user equipment may be the base station where the user equipment observes the link failure, the base station adjacent to the base station where the user equipment observes the link failure, or the non-adjacent base station.
  • the base station where the user equipment is located may send an indication of the handover preparation failure to the user equipment, so that the user equipment sends the handover preparation to the network side (such as the base station B) after successfully establishing an RRC connection with a certain base station.
  • the indication of failure in this way, the network side can determine that the link failure reason is a handover preparation failure, rather than due to handover parameter setting or coverage problem, which is beneficial to network optimization.
  • Figure 13 is a diagram showing the method of analyzing the cause of link failure in Embodiment 13 of the present invention.
  • the method includes:
  • Step 1301 After successfully connecting with the user equipment, receiving an indication that the handover preparation failure sent by the user equipment fails;
  • Step 1302 The indication that the handover preparation fails is not observed or when the link failure is observed to the user equipment. At the base station to send;
  • the indication that the handover preparation fails may be included in the link failure indication, and is not sent to the base station where the user equipment observes that the link fails.
  • the network side (such as the base station B) sends an indication that the handover preparation fails, so that the network side can determine that the link failure reason is the handover preparation failure.
  • the base station sends the indication that the handover preparation fails to the base station where the link failure occurs to the user equipment, and the base station may also send the indication that the handover preparation fails to the base station where the user equipment observes the link failure. .
  • the base station where the user equipment UE is located is the base station A.
  • the neighboring base station of the base station A may include the base station B and the base station C.
  • the number of the neighboring base stations may be more than two, and the analysis process is similar to the case of including two neighboring base stations.
  • the neighboring base station includes the base station B and the base station C as an example for description.
  • the user equipment when the user equipment link fails, the user equipment performs a connection reestablishment attempt with a neighboring base station (such as base station B or C), base station A, or other base station, and the user equipment and the base station fail after the connection reestablishment attempt fails.
  • the connection is successfully established.
  • the base station may be the neighboring base station 8, C, or may be a neighboring base station, or may be the base station A.
  • the user equipment selects a connection reestablishment attempt with the neighboring base station B. And an example of selecting an RRC connection with the base station B will be described.
  • FIG. 14A is a method for analyzing a link failure reason according to Embodiment 14 of the present invention. As shown in FIG. 14A, the method includes:
  • Step 1401 The user equipment UE sends a measurement report to the base station A where it is located.
  • step 401 in FIG. 4A it is similar to step 401 in FIG. 4A, and details are not described herein again;
  • the measurement report may include the measurement result of the current cell, the measurement result of the neighboring cell, and the like, which is similar to the prior art, and is not described herein again.
  • Steps 1402, 1402' when the user equipment UE needs to perform handover, the base station A where the user equipment UE is located will simultaneously send a handover request to multiple target base stations;
  • base station A transmits a handover request to neighboring base station B and base station C.
  • Steps 1403, 1403' after the base station B and the base station C receive the handover request, return a handover preparation failure message to the base station A.
  • Step 1404 After receiving the handover preparation failure message, the base station A sends a handover preparation failure indication to the user equipment.
  • Step 1405 After the link fails, the UE performs a connection reestablishment attempt with the base station.
  • the RRC connection re-establishment is performed, for example, the connection re-establishment attempt is performed with the base station B.
  • the connection re-establishment fails.
  • the specific process refer to step 405 of the embodiment 4A. And FIG. 5, and details are not described herein again.
  • Step 1406 The UE successfully establishes an RRC connection with the base station.
  • the base station that successfully establishes an RRC connection with the UE may be the base station A, the base station B or the C, or another base station.
  • the UE selects to establish a connection with the base station B.
  • step 406 of the embodiment 4A refer to step 406 of the embodiment 4A. And Figure 6, it will not be repeated here.
  • Step 1407 after the UE successfully establishes an RRC connection with the base station B, the UE sends an indication of the link failure to the network side (ie, the base station B).
  • the handover preparation failure indication may be included in the link failure report and sent by the link failure indication message.
  • the handover preparation failure indication may also be included in the link failure indication message.
  • Step 1408 After receiving the indication that the handover preparation fails, the base station B does not send a link failure indication to the base station A.
  • the method includes the following steps: Step 1408 ′, after receiving the indication that the handover preparation fails, the base station B sends the indication that the handover preparation fails to be included in the link failure indication to the base station A.
  • Figure 14B is a diagram showing a method of analyzing the cause of link failure in Embodiment 15 of the present invention.
  • the embodiment 15 is different from the embodiment 14 shown in FIG. 14A in that, in step 1406', the UE selects to establish a connection with the base station A and successfully establishes a connection; in step 1407', the UE prepares for handover. The indication of failure is sent to base station A. This step is optional.
  • Figure 14C is a diagram of a method for analyzing the cause of link failure in Embodiment 16 of the present invention.
  • the embodiment 16 is different from the embodiment 14 shown in FIG. 14A in that, in step 1406", the UE selects to establish a connection with the base station D and successfully establishes a connection; in step 1407", the UE prepares for handover.
  • the indication of failure is sent to base station D.
  • the base station D is not a neighboring base station of the base station A.
  • the base station D does not send an indication that the handover preparation failed to the base station A.
  • optional step 1409 the base station D sends an indication to the base station A that the handover preparation fails.
  • the UE receives the handover preparation failure indication sent by the base station A, and after establishing a connection with a certain base station, sends the indication of the handover preparation failure to the base station, so that the base station receives the finger.
  • the indication that the handover preparation fails may be sent or not sent to the base station where the user equipment fails to generate the link. Therefore, the base station determines that the link failure is caused by the handover preparation failure, instead of the handover parameter. The setting problem or the coverage problem or the like is caused, so that the base station can ignore the link failure message, which helps to optimize the network more accurately.
  • the embodiment of the invention further provides a base station and a user equipment, as described in the following embodiments.
  • the method for solving the problem between the base station and the user equipment is similar to the method for analyzing the failure of the link based on the base station and the user equipment. Therefore, the implementation of the base station and the user equipment can refer to the implementation of the method, and the repeated description is not repeated.
  • FIG. 15 is a block diagram showing the configuration of a base station in Embodiment 17 of the present invention.
  • the base station is the base station where the user equipment is located before the link fails (the base station where the user equipment observes the link failure), such as base station A.
  • the base station includes a fifth transmitting unit 1501, a fourth receiving unit 1502, and a seventh processing unit 1503;
  • the fifth sending unit 1501 is configured to send a handover request message to all possible target base stations when the user equipment needs to switch before the link fails;
  • the fourth receiving unit 1502 is configured to receive a handover preparation failure message returned by the target base station according to the handover request message.
  • the seventh processing unit 1503 is configured to send an indication that the handover preparation fails to the user equipment.
  • the working process of the base station is as described in Embodiment 11 and is not described here.
  • the base station may further include a fifth receiving unit (not shown).
  • the fifth receiving unit is configured to receive an indication that the handover preparation fails to be sent by the other base station after the user equipment successfully establishes a connection with other base stations. If the other base station transmits the indication in the link failure indication at this time, or the indication is included in the link failure report, the base station may ignore the link failure indication.
  • the fifth receiving unit is configured to receive the user equipment after the user equipment successfully establishes a connection with the base station. An indication that the sent handover preparation failed.
  • the fifth receiving unit is an optional component.
  • Figure 16 is a block diagram showing the structure of a user equipment according to Embodiment 18 of the present invention.
  • the user equipment includes: a sixth receiving unit 1601 and an eighth processing unit 1602;
  • the sixth receiving unit 1601 is configured to receive an indication that the handover preparation failure is sent by the base station where the user equipment is located
  • the eighth processing unit 1602 is configured to: after the link fails, after the user equipment establishes a connection with the base station or other base station, And transmitting, to the base station or other base station, the indication that the handover preparation fails; wherein the indication that the handover preparation fails may be sent to another base station in a link failure report.
  • the user equipment may further include a connection establishing unit for establishing a connection with the base station or other base stations, and the process of establishing the connection is similar to the prior art, as described in Embodiment 4 and FIG. No longer.
  • the user equipment may further include a connection re-establishing unit, configured to perform a connection re-establishment attempt with the neighboring base station when the user equipment link fails, and the process of establishing the connection is similar to the prior art, as in Embodiment 4 and As illustrated in Figure 5, it will not be described here.
  • FIG. 17 is a block diagram showing the structure of a base station in Embodiment 15 of the present invention.
  • the base station refers to a base station that successfully establishes a connection with a user equipment, and the base station may be a neighboring base station, such as base station B or C, or may not be the neighboring base station.
  • a seventh receiving unit 1701 and a tenth processing unit 1702 As shown in FIG. 17, a seventh receiving unit 1701 and a tenth processing unit 1702; wherein
  • the seventh receiving unit 1701 is configured to receive, after the base station successfully connects with the user equipment, an indication that the handover preparation failure sent by the user equipment is failed;
  • the ninth processing unit 1702 is configured to send the indication that the handover preparation fails to or to the base station where the user equipment observes that the link fails.
  • the base station may further include a connection establishing unit for establishing a connection with the user equipment, and the process of establishing the connection is similar to the prior art, as described in Embodiment 4 and FIG. 6, and details are not described herein again.
  • the base station A of the UE when the user equipment is to be handed over, sends a handover request to the neighboring base station, and after receiving the handover preparation failure message, sends a handover preparation failure indication to the user terminal, so that the user equipment is After establishing a connection with a certain base station, the link failure report carrying the handover preparation failure indication is sent to the base station, so that after the base station receives the link failure report, the link failure report may be generated to the user equipment.
  • the base station where the link fails is sent or not sent. Therefore, the base station determines that the link failure is caused by the handover preparation failure, instead of the handover parameter setting problem or the coverage problem, so that the base station can ignore the link. Failure messages help to optimize the network more accurately.
  • the embodiment of the present invention further provides a computer readable program, wherein when the program is executed in a base station, the program causes the computer to execute the embodiments 1, 2, 4 to 6, 11, 13, 14 to 16 in the base station The method of analyzing the cause of link failure.
  • Embodiments of the present invention also provide a storage medium storing a computer readable program, wherein the computer readable program causes a computer to perform the embodiments described in Embodiments 1, 2, 4 to 6, 11, 13, 14 to 16 in a base station A method of analyzing the cause of a link failure.
  • the embodiment of the present invention further provides a computer readable program, wherein when the program is executed in a user equipment, the program causes the computer to execute the embodiments described in Embodiments 3, 4, 6, 12, 14 to 16 in the user equipment.
  • a method of analyzing the cause of a link failure is provided.
  • the embodiment of the present invention further provides a storage medium storing a computer readable program, wherein the computer readable program causes the computer to execute the analysis link described in Embodiments 3, 4, 6, 12, 14 to 16 in the user equipment. The method of failure.
  • the above apparatus and method of the present invention may be implemented by hardware, or may be implemented by hardware in combination with software.
  • the present invention relates to a computer readable program that, when executed by a logic component, enables the logic component to implement the apparatus or components described above, or to cause the logic component to implement the various methods described above Or steps.
  • the present invention also relates to a storage medium for storing the above program, such as a hard disk, a magnetic disk, an optical disk, a DVD, a flash memory, and the like.

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Abstract

一种分析链路失败原因的方法、基站和用户设备。该方法包括:用户设备观测到链路失败时所在的基站接收其他基站或该用户设备发送的标识信息,该标识信息包括:与该用户设备有关的标识、和/或该用户设备在该基站中的标识;在该基站确定该标识信息储存在该基站中时,该基站确定链路失败是切换准备失败导致。通过该方法可对由切换准备失败导致的链路失败进行分析,从而使网络侧更加准确地优化网络,解决现有技术中存在的问题。

Description

分析链路失败原因的方法及其装置 技术领域
本发明涉及一种通信领域, 特别涉及一种分析链路失败原因的方法及其装置。
背景技术
在自优化网络 (SON, Self-optimizing Networks ) 中, 当终端设备发生链路失 败后会向网络侧发送链路失败报告, 然后网络侧会根据该报告判定造成失败的原因。
发明人实现本发明的过程中发现现有技术的缺陷在于,网络侧会根据终端提供的 链路失败信息判断出是切换参数的错误设置问题还是覆盖问题,但是目前的判断方法 不能判断出是否因为切换准备失败造成, 从而导致网络侧不能正确优化。
发明内容
本发明实施例的目的在于提供一种分析链路失败原因的方法、 基站和用户设备, 通过该方法可对由切换准备失败导致的链路失败进行分析,从而使网络侧更加准确地 优化网络。
根据本发明实施例的一个方面提供了一种分析链路失败原因的方法, 该方法包 括:用户设备观测到链路失败时所在的基站接收其他基站或该用户设备发送的标识信 息, 该标识信息包括: 与该用户设备有关的标识、 和 /或该用户设备在该基站中的标 识; 在该基站确定该标识信息储存在该基站中时, 该基站确定链路失败是切换准备失 败导致。
根据本发明实施例的另一个方面提供了一种分析链路失败原因的方法,该方法包 括: 基站在与用户设备成功建立连接后接收该用户设备发送的标识信息, 该标识信息 包括: 与该用户设备有关的标识、 和 /或该用户设备在观测到链路失败时所在的基站 中的标识; 将该标识信息向该用户设备在观测到链路失败时所在的基站发送。
根据本发明实施例的另一个方面提供了一种分析链路失败原因的方法,该方法包 括: 用户设备在发生链路失败时, 在进行连接重建尝试时生成与该用户设备有关的标 识信息;在该用户设备与基站成功建立连接后,该用户设备向该基站发送该标识信息, 其中, 该标识信息包括: 与该用户设备有关的标识、 和 /或该用户设备在观测到链路 失败时所在的基站中的标识。
根据本发明实施例的另一个方面提供了一种基站,该基站为用户设备观测到链路 失败时所在的基站, 包括:
第一接收单元, 该第一接收单元用于接收其他基站或该用户设备发送的标识信 息, 该标识信息包括: 与该用户设备有关的标识、 和 /或该用户设备在观测到链路失 败时所在基站中的标识;
第一处理单元, 该第一处理单元用于在该基站确定该标识信息储存在该基站中 时, 确定链路失败是切换准备失败导致。
根据本发明实施例的另一个方面提供了一种基站, 该基站包括:
第三接收单元, 该第三接收单元用于在该基站与用户设备成功建立连接后, 接收 该用户设备发送的标识信息, 该标识信息包括: 与该用户设备有关的标识、 和 /或该 用户设备在观测到链路失败时所在的基站中的标识;
第三发送单元,该第三发送单元用于将该标识信息向该用户设备在观测到链路失 败时所在的基站发送。
根据本发明实施例的另一个方面提供了一种用户设备, 该用户设备包括: 第六处理单元, 该第六处理单元用于在用户设备发生链路失败时, 在进行连接重 建尝试时生成与该用户设备有关的标识信息;
第四发送单元,该第四发送单元用于在与基站成功建立连接后向该基站发送该标 识信息, 该标识信息包括: 与该用户设备有关的标识、 和 /或该用户设备在观测到链 路失败时所在的基站中的标识。
根据本发明实施例的另一个方面提供了一种分析链路失败原因的方法,该方法包 括: 在用户设备要切换时, 该用户设备所在的基站向所有可能的目标基站发送切换请 求消息; 接收到该目标基站根据该切换请求消息返回的切换准备失败消息; 向该用户 设备发送切换准备失败的指示。
根据本发明实施例的另一个方面提供了一种分析链路失败原因的方法,该方法包 括: 用户设备接收该用户设备所在的基站发送的切换准备失败的指示; 在该用户设备 链路失败后, 该用户设备与该基站或其他基站建立连接后, 向该基站或其他基站发送 该切换准备失败的指示。
根据本发明实施例的另一个方面提供了一种分析链路失败原因的方法,该方法包 括: 基站与用户设备成功连接后, 接收该用户设备发送的切换准备失败的指示; 将该 切换准备失败的指示不向或者向用户设备观测到链路失败时所在的基站发送。
根据本发明实施例的另一个方面提供了一种基站, 该基站包括:
第五发送单元, 该第五发送单元用于在用户设备要切换时, 向所有可能的目标基 站发送切换请求消息;
第四接收单元,该第四接收单元用于接收该目标基站根据该切换请求消息返回的 切换准备失败消息;
第七处理单元, 该第七处理单元用于向该用户设备发送切换准备失败的指示。 根据本发明实施例的另一个方面提供了一种用户设备, 该用户设备包括: 第六接收单元,该第六接收单元用于接收该用户设备所在的基站发送的切换准备 失败的指示;
第八处理单元, 该第八处理单元用于在该链路失败, 该用户设备与该基站或其他 基站建立连接后, 向该基站或其他基站发送该切换准备失败的指示。
根据本发明实施例的另一个方面提供了一种基站, 该基站包括:
第七接收单元, 该第七接收单元用于在该基站与该用户设备成功连接后, 接收该 用户设备发送的切换准备失败的指示;
第九处理单元,该第九处理单元用于将该切换准备失败的指示不向或者向用户设 备观测到链路失败时所在的基站发送。
根据本发明实施例的另一个方面提供了一种计算机可读程序,其中当在基站中执 行该程序时, 该程序使得计算机在该基站中执行如上该的分析链路失败原因的方法。
根据本发明实施例的另一个方面提供了一种存储有计算机可读程序的存储介质, 其中该计算机可读程序使得计算机在基站中执行如上该的分析链路失败原因的方法。
根据本发明实施例的另一个方面提供了一种计算机可读程序,其中当在用户设备 中执行该程序时,该程序使得计算机在该用户设备中执行如上该的分析链路失败原因 的方法。
根据本发明实施例的另一个方面提供了一种存储有计算机可读程序的存储介质, 其中该计算机可读程序使得计算机在用户设备中执行如上该的分析链路失败原因的 方法。
本发明实施例的有益效果在于:可对由切换准备失败导致的链路失败进行分析, 从而使网络侧更加准确地优化网络, 解决现有技术中存在的问题。
参照后文的说明和附图, 详细公开了本发明的特定实施方式, 指明了本发明的 原理可以被采用的方式。 应该理解, 本发明的实施方式在范围上并不因而受到限制。 在所附权利要求的精神和条款的范围内, 本发明的实施方式包括许多改变、修改和等 同。
针对一种实施方式描述和 /或示出的特征可以以相同或类似的方式在一个或更 多个其它实施方式中使用, 与其它实施方式中的特征相组合, 或替代其它实施方式中 的特征。
应该强调,术语 "包括 /包含"在本文使用时指特征、整件、步骤或组件的存在, 但并不排除一个或更多个其它特征、 整件、 步骤或组件的存在或附加。
附图说明
从以下结合附图的详细描述中, 本发明实施例的上述以及其他目的、特征和优点 将变得更加显而易见, 在附图中:
图 1是本发明实施例 1的分析链路失败原因的方法;
图 2是本发明实施例 2的分析链路失败原因的方法;
图 3是本发明实施例 3的分析链路失败原因的方法;
图 4A是本发明实施例 4的分析链路失败原因的方法;
图 4B本发明实施例 5的分析链路失败原因的方法;
图 4C本发明实施例 6的分析链路失败原因的方法;
图 5是本发明实施例 4中用户设备与相邻基站进行连接重建尝试的过程流程图; 图 6是本发明实施例 4中用户设备与基站建立 RRC连接的过程流程图; 图 7是本发明实施例 7的基站的构成示意图;
图 8是本发明实施例 8的基站的构成示意图;
图 9是本发明实施例 9的基站的构成示意图;
图 10是本发明实施例 10的用户设备的构成示意图;
图 11是本发明实施例 11的分析链路失败原因的方法;
图 12是本发明实施例 12的分析链路失败原因的方法;
图 13是本发明实施例 13的分析链路失败原因的方法; 图 14A是本发明实施例 14的分析链路失败原因的方法
图 14B是本发明实施例 15的分析链路失败原因的方法
图 14C是本发明实施例 16的分析链路失败原因的方法
图 15是本发明实施例 17的基站构成示意图;
图 16是本发明实施例 18的用户设备构成示意图;
图 17是本发明实施例 19的基站构成示意图。
具体实施方式
下面结合附图对本发明的各种实施方式进行说明。这些实施方式只是示例性的, 不是对本发明的限制。为了使本领域的技术人员能够容易地理解本发明的原理和实施 方式,本发明的实施方式以 SON网络的链路失败原因分析为例进行说明,但可以理解, 本发明并不限于上述系统, 对于涉及链路原因失败的其他系统均适用。
目前, 在现有的方案中, 在用户设备 UE发生链路失败后, 网络侧会根据终端提 供的链路失败信息判断出是切换参数的错误设置问题还是覆盖问题。但是, 现有的方 案不能判断出有些链路失败是因为切换准备失败造成的, 而导致错误的网络侧的优 化。 因此, 本发明实施例可向网络侧提供相关信息, 使得网络侧可分辨出因为切换准 备失败导致的链路失败, 可以帮助网络性能的优化。
下面结合附图对本发明实施例进行详细说明。
图 1是本发明实施例 1的分析链路失败原因的方法, 针对用户设备 UE观测到链 路失败时所在的基站 (该基站也是用户设备链路失败前, 该用户设备所在基站), 此 夕卜, 在该用户设备链路失败后, 如果与该基站再次成功连接后, 则该基站也是与该用 户设备成功建立连接的基站。
如图 1所示, 该方法包括:
步骤 101, 用户设备 UE观测到链路失败时所在的基站接收其他基站或该用户设 备发送的标识信息, 该标识信息包括: 与该用户设备有关的标识、 和 /或该用户设备 在该基站中的标识;
在本实施例中,该标识信息是该用户设备在链路失败后进行连接重建尝试时所使 用的信息;
其中, 在该用户设备链路失败后, 再次与该基站成功建立连接后, 该基站接收该 用户设备发送的标识信息; 此外, 在该用户设备链路失败, 且与该其他基站成功建立 连接后, 该其他基站从该用户设备获得该标识信息。
其中, 与该用户设备有关的标识可以是一个与该用户设备有关的唯一标识列表, 例如为 shortMAC-I列表, 见 3GPP TS36. 331;
此外,该用户设备在该基站中的标识可为小区无线网络临时标识(C-RNTI , Cel l
Radio Network Temporary Identifier);
在本实施例中, 该标识信息可由该其他基站或该用户设备直接向该基站发送, 在 本实施例中, 可将该标识信息包含在任意一个消息中向该基站发送;
例如, 可将该标识信息包含在链路失败指示消息中向该基站发送;
另外, 该其他基站或该用户设备也可以将该标识信息包含在链路失败报告 (RLF
Report ) 中, 将该链路失败报告包含在链路失败指示消息中向该基站发送; 在这种情 况下, 该链路失败报告中除了包括上述标识信息外, 还可包括其他信息, 如链路失败 时本小区和邻居小区的测量信息, 用户设备的位置信息, 速度信息等, 与现有技术中 包含的信息类似, 此处不再赘述。
步骤 102, 该用户设备观测到链路失败时所在的基站确定该标识信息储存在该基 站中时, 该基站确定链路失败是切换准备失败导致;
在本实施例中, 在该基站接收到该标识信息、 或者接收到链路失败报告, 从中获 得标识信息后, 可在本地预先储存的信息列表中进行查找, 看该信息列表中是否储存 有该标识信息, 如果存在, 则认为该链路失败由切换准备失败导致。
由上述实施例可知,用户设备观测到链路失败时所在的基站可利用接收到的标识 信息和预先储存在本地的信息来确定该链路失败是由切换准备失败导致,而不是由切 换参数的设置问题或覆盖问题等导致, 从而该基站可忽略该链路失败消息, 有助于更 加准确地优化网络。
图 2是本发明实施例 2的分析链路失败原因的方法, 针对用户设备 UE发生链路 失败后与用户设备成功建立连接的基站,该基站不是该用户设备观测到链路失败时所 在的基站,可以是该用户设备观测到链路失败时所在的基站相邻的基站或非相邻的基 站。
如图 2所示, 该方法包括:
步骤 201,该基站在与用户设备成功建立连接后接收该用户设备发送的标识信息, 该标识信息包括: 与该用户设备有关的标识、 和 /或该用户设备观测到链路失败时所 在的基站中的标识;
在本实施例中,该标识信息是该用户设备在链路失败后进行连接重建尝试时所使 用的信息, 其中, 该用户设备在链路失败后, 与基站进行连接重建尝试, 与该用户设 备进行连接重建尝试的基站可为任何基站,如该用户设备观测到链路失败时所在的基 站、 与该用户设备观测到链路失败时所在的基站相邻的基站或不相邻的其他基站。
该用户设备发送该标识信息的方式如实施例 1中所述, 此处不再赘述。
步骤 202,该基站将该标识信息向该用户设备观测到链路失败时所在的基站发送; 在本实施例中,该基站可将该标识信息直接发送给用户设备观测到链路失败时所 在的基站,或者将该标识信息包含在链路失败报告中向该用户设备观测到链路失败时 所在的基站发送, 具体如实施例 1中所述, 此处不再赘述;
在本实施例中, 当将该标识信息包含在链路失败报告中发送时, 可通过链路失败 指示 (RLF Indication) 消息将该链路失败报告向该用户设备观测到链路失败时所在 的基站发送;
这样,该用户设备观测到链路失败时所在的基站可利用获得的标识信息和本地保 存的信息确定链路失败是否为切换准备失败导致, 具体如实施例 1中所述, 此处不再 赘述。
图 3是本发明实施例 3的分析链路失败原因的方法, 针对用户设备 UE, 该用户 设备 UE发生链路失败后, 可与任何基站进行连接重建尝试或者建立连接, 如该用户 设备观测到链路失败时所在的基站、与该用户设备观测到链路失败时所在的基站相邻 的基站或不相邻的其他基站。
如图 3所述, 该方法包括:
步骤 301, 用户设备在发生链路失败后, 在进行连接重建尝试时生成与该用户设 备有关的标识信息;
在本实施例中, 与该用户设备进行重建尝试的基站可为任何基站, 如上所述, 此 处不再赘述;
在本实施例中,在用户设备所在的基站向该用户设备所有可能的目标基站发起切 换请求后都无法选择一个合适的目标基站, 从而无法向该用户设备发送切换命令, 这 样, 该用户设备 UE可进行小区选择, 然后与选择的基站进行连接重建尝试, 在该重 建尝试过程中将生成与该用户设备有关的标识信息,该标识信息包含的信息如实施例 1和 2中所述, 例如, 包括 shortMAC_I、和 /或 C-RNTI ; 其中, 对于不同的用户设备, 该 shortMAC-I不同; 对于同一个用户设备, 对于不同的目标小区该 shortMAC-I也不 同;
此外, 该目标基站是与该用户设备观测到链路失败时所在基站相邻的基站; 其中,该用户设备 UE与该基站重建无线资源控制(RRC, Radio Resource Control ) 连接, 其具体的过程与现有技术类似, 在下述实施例中说明, 此处不在赘述。
步骤 302, 该用户设备在与基站成功建立连接后, 向该基站发送该标识信息; 在本实施例中, 该用户设备在重建尝试失败后, 经过一定时间后, 可进行小区选 择, 与选择的一个基站成功建立连接, 与该用户设备成功建立连接的基站可为任何基 站, 如该用户设备观测到链路失败时所在基站, 与该用户设备观测到链路失败时所在 基站相邻的一个基站或非相邻的基站;
在本实施例中, 该用户设备发送该标识信息的方式如实施例 1和 2所述, 即可将 该标识信息通过任意消息直接向该基站发送,也可将该标识信息包含在链路失败指示 消息中向该基站发送,也可以将包含该标识信息的链路失败报告包含在指示消息中向 该基站发送。
由上述实施例可知, 用户设备在与某个基站成功建立连接后, 将标识信息向该基 站发送, 其中该标识信息为该用户设备进行重建尝试时使用的信息, 这样, 在该基站 接收到该标识信息后,可将该标识信息向该用户设备观测到链路失败时所在的基站发 送, 这样, 该用户设备观测到链路失败时所在的基站可利用接收到的标识信息和预先 储存在本地的信息来确定该链路失败是由切换准备失败导致,而不是由切换参数的设 置问题或覆盖问题等导致, 从而该基站可忽略该链路失败消息, 有助于更加准确地优 化网络。
下面通过附图结合具体的场景对本发明实施例的分析链路失败原因的方法进行 说明。 例如, 在用户设备发生链路失败 (即用户设备观测到链路失败时所在的基站) 时, 该用户设备 UE所在的基站为基站 A, 在本实施例中, 该基站 A的相邻基站可包 括基站 B和基站 C, 在实际的网络系统中, 该相邻基站的数量可以多于 2个, 其分析 过程与包含 2个相邻基站的情况类似,这里以相邻基站包含基站 B和基站 C为例进行 说明。 在本实施例中, 对在该 UE发生链路失败后, 该 UE通过小区选择与基站 B进行连 接重建; 在连接重建失败后, 该 UE通过小区选择与基站 B成功建立连接的情况进行 说明。 需要说明的是, 作为与该用户设备进行重建连接尝试和成功建立连接的基站, 可为任何基站, 例如, 基站 A; 与基站 A相邻的其他基站, 如基站 C; 不与基站 A相 邻的其他基站。
图 4A是本发明实施例 4的分析链路失败原因的方法,如图 4A所示,该方法包括: 步骤 401, 用户设备 UE向所在基站 A发送测量报告;
在本实施例中, 在触发事件发生时, 该用户设备 UE向所在基站 A发送测量报告; 例如, 该触发事件为; 基站 B的信号质量减去基站 A的信号质量后的差值大于某个门 限值;
其中, 该测量报告可包括本小区的测量结果, 邻居小区的测量结果等, 与现有技 术类似, 此处不再赘述。
步骤 402, 402 ' , 在该用户设备 UE需要切换时, 该用户设备 UE所在基站 A将 向多个目标基站发送切换请求;
在本实施例中, 该目标基站为与基站 A相邻的基站, 如基站 B和基站 C, 基站 A 向相邻基站 B和基站 C发送切换请求。
步骤 403, 403 ' , 在基站 B和基站 C接收到该切换请求后, 向基站 A返回切换 准备失败消息。
步骤 404, 基站 A接收到该切换准备失败消息后, 记录该 UE的标识信息, 该标 识信息包括: 与该 UE有关的标识、 和 /或该 UE在基站 A中的标识;
在本实施例中, 基站 A可将该标识信息记录在标识信息列表中, 例如, 与该 UE 有关的标识可为一个与该 UE有关的唯一标识列表, 例如, shortMAC-I列表, 如表 1 所示。 该列表中的每个标识对应了目标基站的一个小区; 该 UE在基站 A中的标识, 例如, 可为 C-RNTI可存储在另一个标识信息列表中。
表 1 shortMAC-I列表
shortMAC -I
shortMAC- 11
shortMAC- 12
… 步骤 405, 在该 UE链路失败后, 该 UE进行连接重建尝试;
在本实施例中, 进行 RRC连接重建尝试, 例如, 通过小区选择与基站 B进行连接 重建尝试, 其连接重建过程如图 5所示, 在下面进行详细说明, 此处不再赘述; 在连接重建过程中, 生成针对基站 B的标识信息, 如 shortMAC_I、 C-RNTI , 但 是由于在基站 B中没有该 UE的上下文, 因此, 该连接重建失败。
步骤 406, 该 UE与基站成功建立 RRC连接;
在本实施例中, 该 UE在链路失败后, 经过一段时间, 其与基站建立连接, 例如, 通过小区选择与基站 B建立连接,其连接建立过程如图 6所示,在下面进行详细说明, 此处不再赘述。
步骤 407, 在该 UE与基站 B成功建立 RRC连接后, 该 UE向网络侧 (即基站 B) 发送在发生链路失败时进行连接重建尝试时产生的标识信息;
在本实施例中, 该 UE可通过任何消息将该标识信息直接向基站 B发送, 也可将 该标识信息包含在链路失败报告中向基站 B发送;
在本实施例中,例如,将该标识信息包含在该链路失败指示消息中向基站 B发送, 该链路失败指示消息携带一个在连接重建尝试时生成的一个与该 UE 有关的唯一标 识, 例如 shortMAC-I , 和 /或该 UE 在发生链路失败的基站 A 中使用的标识, 例如 C-RNTI o
步骤 408, 基站 B在接收到该标识信息后, 将该标识信息发送给基站 A, 即该 UE 发生链路失败时所在的基站;
在本实施例中, 基站 B通过链路失败指示消息将该标识信息发送给基站 A;
但也可将包括该标识信息的链路失败报告包含在该链路失败指示消息中发送给 基站 A。
步骤 409, 基站 A接收基站 B发送的链路失败指示消息, 若确定该指示消息中包 含的标识信息已记录在该基站 A中, 则基站 A忽略该链路失败指示;
在本实施例中, 基站 A在预存的标识信息列表中进行查找, 判断该链路失败指示 中包含的标识信息是否存在于该标识信息列表中, 如果存在, 则说明该 UE的链路失 败是由切换准备失败导致, 从而可准确地优化网络。
步骤 410, 基站 A删除其储存该用户设备对应的标识信息;
在本实施例中, 当该标识信息中与该 UE有关的标识为表 1所示的列表时, 则删 除该列表, 当该标识信息中还包括该 UE在基站 A中的标识时, 例如, C-RNTI , 则该 基站还要删除该 C_RNTI。
在本实施例中, 基站 A所记录的关于该 UE的标识信息列表还会在以下情况下删 除, 以下举例说明。
例 1, 在步骤 403, 403 ' 中, 与该 UE有关的所有切换请求都被拒绝后, 该 UE在 相同基站, 即基站 A完成了一次成功的切换准备, 即在其所在的基站 A发送了切换请 求后, 目标基站 (相邻基站 B或 C ) 回复了切换请求答复消息时, 基站侧所记录的关 于该 UE的标识列表 (如表 1 ) 和 /或该 UE在发生链路失败的基站 A中使用的标识被 删除;
这样, 在链路失败前, 在步骤 403, 403 ' 之后, 该方法还包括: 基站 A再次向该 相邻基站发送切换请求; 在接收到该相邻基站返回的切换请求答复消息时, 删除该基 站中存储的该信息; 其中, 该相邻基站为基站 B或基站 (:。
例 2 : 在步骤 404记录该标识信息后, 当记录的标识信息在基站 A处存储了一定 时间后, 基站侧所记录的关于该 UE的标识信息列表 (表 1 ) 和 /或该 UE在发生链路 失败的基站 A中使用的标识被删除;
这样, 该方法还包括: 在基站 A中储存的信息的储存时间超过预定时间时, 基站 A删除储存的该信息。
图 4B本发明实施例 5的分析链路失败原因的方法。 如图 4B所示, 与图 4A所示 的实施例 4的不同之处在于步骤 406 ' 、 步骤 407 ' 和步骤 409 ' , 其他步骤与实施 例 4类似。 其中, 步骤 406 ' , 在本实施例中, 在该用户设备 UE链路失败, 经过一 段时间后, 其与基站建立连接, 例如, 通过小区选择与基站 A建立连接, 其连接建立 过程如图 6所示, 在下面进行详细说明, 此处不再赘述。 步骤 407 ' , 在该 UE与基 站 A成功建立 RRC连接后, 该 UE向网络侧 (即基站 A) 发送在发生链路失败时进行 连接重建尝试时产生的标识信息。 步骤 409 ' , 基站 A在接收到该标识信息后, 若确 定该指示消息中包含的标识信息已记录在该基站 A中,则基站 A忽略该链路失败指示。
图 4C是本发明实施例 6的分析链路失败原因的方法。 如图 4C所示, 与图 4A所 示的实施例 4的不同之处在于,步骤 406 " , 在本实施例中, 在该用户设备 UE链路失 败, 经过一段时间后, 其与基站建立连接, 例如, 通过小区选择与基站 D建立连接, 此时基站 D为与基站 A不相邻的基站,其连接建立过程与图 6所示的连接建立过程类 似, 此处不再赘述。 步骤 407 " , 在该 UE与基站 D成功建立 RRC连接后, 该 UE向网 络侧 (即基站 D ) 发送在发生链路失败时进行连接重建尝试时产生的标识信息。 步骤 408 " , 基站 D在接收到该标识信息后, 例如, 将该标识信息包含在链路失败指示消 息中向基站 A发送。 其他步骤与实施例 4类似, 此处不再赘述。
在上述图 4A至图 4C的实施例中, 以与 UE成功建立连接的基站为基站 A、 相邻 基站 B、 非相邻基站 D为例进行了说明。 此外, 在上述实施例中, 以与 UE进行连接 重建尝试的基站为相邻基站 B为例进行了说明, 对于其他基站情况类似, 此处不再赘 述。
图 5是本发明实施例 4中用户设备与相邻基站进行连接重建尝试的过程流程图。 如图 5所示, 该方法包括:
步骤, 501, 该 UE进行小区选择;
其中, 选择过程如现有技术, 此处不再赘述。
步骤 502, 在步骤 501中, 如果该 UE选择到基站 B, 则该 UE生成向基站 B发送 RRC连接重建请求消息中的相关信息; 其中, 该相关信息包括包括针对基站 B的用户 标识信息;
例如, 该标识信息为 shortMAC-I, UE在基站 A中的标识 C-RNTI。
步骤 503, 该 UE向基站 B发送 RRC连接重建请求, 该 RRC连接重建请求中包括 生成的该标识信息。
步骤 504, 因为基站 B没有该 UE的上下文, 因此, 基站 B反馈 RRC连接重建拒 绝消息来拒绝重建请求。
图 6是本发明实施例 4中用户设备与基站建立 RRC连接的过程流程图。如图 6所 示, 包括:
步骤 600, 进行小区选择;
其中, 选择过程如现有技术, 此处不再赘述。
步骤 601, 该 UE向选定的基站 B发送 RRC连接请求。
步骤 602, 基站 B接收到该 RRC连接请求后, 向该 UE返回 RRC连接建立消息。 步骤 603, 该 UE接收到该 RRC连接建立消息后, 向基站 B发送 RRC连接建立完 成消息, 这样成功建立该 UE与基站 B之间的连接。
由上述实施例可知, 该 UE在与某个基站建立连接后, 可将标识信息向该基站发 送, 该标识信息为该用户设备在链路失败后进行重建尝试时使用的信息, 这样, 在该 基站获得该标识信息后,可将该标识信息向该用户设备观测到链路失败时所在的基站 发送, 因此, 该基站可利用接收到的标识信息和预先储存在本地的信息来确定该链路 失败是由切换准备失败导致, 而不是由切换参数的设置问题或覆盖问题等导致, 从而 该基站可忽略该链路失败消息, 有助于更加准确地优化网络; 此外, 基站 A还可对记 录的信息进行管理, 及时删除冗余的信息, 节省了基站的存储空间。
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步骤是可以 通过程序来指令相关的硬件完成, 所述的程序可以存储于一计算机可读取存储介质 中, 该程序在执行时, 可以包括上述实施例方法中的全部或部分步骤, 所述的存储介 质可以包括: R0M、 RAM, 磁盘、 光盘等。
本发明实施例还提供了一种基站和用户设备, 如下面的实施例所述。 由于该基 站和用户设备解决问题的原理与上述基于基站和用户设备的分析链路失败原因的方 法相似, 因此该基站和用户设备的实施可以参见方法的实施, 重复之处不再赘述。
图 7是本发明实施例 7的基站构成示意图。 该基站为用户设备观测到链路失败 时所在的基站 (该基站也是用户设备链路失败前, 该用户设备所在基站), 该基站也 可以是在 UE链路失败后, 再次与该用户设备成功建立连接的基站, 如图 7所示, 该 基站包括: 第一接收单元 701和第一处理单元 702; 其中,
第一接收单元 701, 用于接收其他基站或用户设备发送的标识信息, 该标识信 息包括: 与该用户设备有关的标识、 和 /或该用户设备观测到链路失败时所在基站中 的标识; 其作用如实施例的步骤 101所述, 具体的标识信息如实施例 1-4所述, 此处 不再赘述。
第一处理单元 702, 用于在该基站确定该标识信息储存在该基站中时, 确定链 路失败是切换准备失败导致。
在本实施例中,该其他基站或用户设备发送该标识信息的方式如实施例 1所述, 例如, 在本实施例中, 将该标识信息包含在链路失败指示消息中发送, 或者将该标识 信息包含在链路失败报告中在链路失败指示消息中发送。
在本实施例中, 该与用户设备有关的标识信息如实施例 1所述, 可为与用户设 备有关的唯一标识, 如 shortMAC-I, 该用户设备在该用户设备观测到链路失败时所 在基站中的标识可为 C-RNTI ; 此外, 该标识信息是该用户设备进行连接重建尝试时 所使用的信息; 与该用户设备进行连接重建尝试的基站可为任意基站, 如上述实施例 所述, 此处不再赘述。
在本实施例中, 第一处理单元 702在接收到该标识信息后, 可在本地预先储存的 标识信息列表中进行查找, 看该标识信息列表中是否储存有该标识信息, 如果存在, 则认为该链路失败由切换准备失败导致。
此外,该基站还可包括存储单元 703,用于储存与用户设备有关的标识信息列表。 在本实施例中, 在基站确定链路失败的原因由切换准备失败导致, 则第一处理单 元 702忽略该链路失败报告, 这样, 该基站不会将链路失败原因确定为是切换参数设 置或覆盖问题导致, 使网络侧更准确地优化网络。
由上述实施例可知,基站可利用接收到的标识信息和预先储存在本地的信息来确 定该链路失败是由切换准备失败导致,而不是由切换参数的设置问题或覆盖问题等导 致, 从而该基站可忽略该链路失败消息, 有助于更加准确地优化网络。
图 8是本发明实施例 8的基站构成示意图。 该基站为用户设备观测到链路失败 时所在的基站, 该基站也可以是在 UE链路失败后, 再次与该用户设备成功建立连接 的基站, 如图 8所示, 该基站包括: 第一接收单元 801、 第一处理单元 802和存储单 元 803, 其作用与实施例 5类似, 此处不再赘述。
如图 8所示, 该基站还可包括: 第二处理单元 804, 第二处理单元 804用于在 第一处理单元 802 确定该标识信息预存在该基站时, 删除该基站中储存的该标识信 息。
这样, 该基站可对其储存的信息进行管理, 节省其存储空间。
在本实施例中, 该基站可先获取预存的标识信息, 即在用户设备需要切换时, 该用户设备所在的基站 (如基站 A) 会同时向该用户设备的所有可能的目标基站, 即 相邻基站 (如基站 B和基站 C) 发起切换请求后都无法选择到一个合适的目标基站且 无法向该用户设备发送切换命令, (当一个用户设备要切换时, 其所在的基站会同时 向多个基站发送切换请求), 例如对于每个切换请求该基站都收到了相应的切换准备 失败消息, 该用户设备所在的基站 (如图 1中的基站 A) 会记录下与该用户设备有关 的标识信息 (如一个与所有可能的目标基站对应的与终端有关的唯一标识, 例如 shortMAC-I列表, 和 /或终端在基站 A中的标识, 例如 C_RNTI )。
这样, 如图 8所示, 该基站还包括: 第一发送单元 805和第三处理单元 806; 其中, 第一发送单元 805, 用于在链路失败前, 在用户设备要切换时, 基站向所有可 能的目标基站发送切换请求;
第三处理单元 806, 用于在接收到该目标基站返回的切换准备失败消息时, 储 存如下标识信息: 与用户设备有关的标识、 和 /或用户设备在基站中的标识; 其中, 可将该信息以列表方式储存在存储单元 803中。
此外, 在本实施例中, 该基站还可包括用于向该目标基站发送切换请求的单元 和用于接收该相邻基站根据该切换请求返回的切换准备失败消息的单元, 以及向该用 户设备发送切换命令的单元, 此部分与现有技术类似, 此处不再赘述。
在本实施例中, 如图 8所示, 该基站还包括第四处理单元 807, 第四处理单元 807用于在基站中储存的标识信息的储存时间超过预定时间时, 删除储存的该标识信 息。
此外, 在链路失败前, 与该用户设备有关的所有切换请求都被拒绝后 (对于每 个切换请求该基站都收到了相应的切换准备失败消息), 该用户设备在相同基站下完 成了一次成功的切换准备(如当其所在的基站 A发送了切换请求后, 目标基站 B回复 了切换请求答复消息), 在这种情况下, 该基站还包括: 第二发送单元和第五处理单 元 (图中未示出), 其中,
第二发送单元, 用于在基站接收到目标基站返回的切换准备失败消息后, 向相 邻基站发送切换请求; 第五处理单元, 用于在接收到目标基站返回的切换请求答复消 息时, 删除基站中存储的标识信息。 在本实施例中, 具体删除的标识信息如实施例 1-4所述, 此处不再赘述。
由上述实施例可知,基站可利用接收到的标识信息和预先储存在本地的信息来确 定该链路失败是由切换准备失败导致,而不是由切换参数的设置问题或覆盖问题等导 致, 从而该基站可忽略该链路失败消息, 有助于更加准确地优化网络; 此外, 还可对 其储存的信息进行管理, 节省存储空间。
图 9是本发明实施例 9的基站构成示意图。该基站为在用户设备链路失败后, 与 该 UE重新建立连接的基站, 例如, 该基站可以是基站 A的相邻基站, 如基站 B和基 站 C, 也可以是基站 A (见实施例 7和 8), 也可以不是相邻基站。
如图 9所示, 该基站包括: 第三接收单元 901和第三发送单元 902; 其中, 第三接收单元 901, 用于在该基站与用户设备成功建立连接后, 接收该用户设备 发送的标识信息, 其中, 该标识信息包括: 与该用户设备有关的标识、 和 /或该用户 设备在观测到链路失败时所在的基站中的标识,且该标识信息是所述用户设备在链路 失败后进行连接重建尝试时所使用的信息;
第三发送单元 902, 用于将该标识信息向该用户设备在观测到链路失败时所在的 基站发送。
在本实施例中, 该 UE可将该标识信息直接发送给该基站, 如将该标识信息包含 在链路失败指示消息中发送;
此外,该用户设备也可将该标识包含在链路失败报告中通过链路失败指示消息发 送给该基站, 在这种情况下, 第三接收单元 901用于接收用户设备发送的链路失败指 示消息, 可从该消息中获得该链路失败报告中的该标识信息; 第三发送单元 902, 用 于将包含该标识信息的链路失败报告通过链路失败指示消息向用户设备在观测到链 路失败时所在的基站发送。
此外, 该基站还可包括用于与该用户设备建立连接的单元, 其建立连接的过程与 现有技术类似, 如实施例和附图 6所述, 此处不再赘述。
此外, 在本实施例中, 该基站还可包括用于接收该用户设备发生链路失败时所在 的基站发送的切换请求的单元, 以及用于根据该切换请求返回切换准备失败消息的单 元。
由上述实施例可知,该基站可将该用户设备的标识信息向该用户设备观测到链路 失败时所在的基站发送,使得该用户设备观测到链路失败时所在的基站利用该标识信 息和其存储的信息确定是否为切换准备失败, 从而准确确定链路失败原因, 有利于网 络性能的优化。
图 10是本发明实施例 10的用户设备的构成示意图。 如图 10所示, 该用户设备 包括: 第六处理单元 1001和第四发送单元 1002; 其中,
第六处理单元 1001, 用于在用户设备发生链路失败时, 在与进行连接重建尝试 的基站进行连接重建尝试时生成与该用户设备有关的标识信息; 其中, 该标识信息如 上述实施例中所述, 此处不再赘述。 第四发送单元 1002, 用于在与基站成功建立连 接后向该基站发送该标识信息; 其中, 可将该标识信息通过链路失败指示消息发送到 该基站,也可将该标识信息包含在链路失败报告中通过链路失败指示消息向该基站发 送, 如上述实施例中所述, 此处不再赘述。 在上述实施例中, 与该用户设备进行连接重建尝试或成功建立连接的基站可为 任意基站, 如上述实施例中所述, 此处不再赘述。
此外, 该用户设备还可包括连接建立单元, 用于与该其他基站建立连接, 其建 立连接的过程与现有技术类似, 如实施例 4和图 6所述, 此处不再赘述。
此外, 该用户设备还可包括连接重建单元, 用于在用户设备发生链路失败时, 与基站 A、 或与基站 A相邻的基站或不相邻的基站重建连接, 其重建过程与现有技术 类似, 如实施例 4和附图 5所述, 此处不再赘述。
由上述实施例可知, 在用户设备与某个基站建立连接后, 可将标识信息向该基 站发送, 该基站将该标识信息向该用户设备观测到链路失败时所在的基站发送, 使得 该用户设备观测到链路失败时所在的基站利用该标识信息和其存储的信息确定是否 为切换准备失败, 从而准确确定链路失败原因, 有利于网络性能的优化。
图 11是本发明实施例 11的分析链路失败原因的方法。 针对链路失败前用户设 备所在基站(也是在用户设备观测到链路失败时该用户设备所在的基站), 如图 11所 示, 该方法包括:
步骤 1101, 在用户设备需要切换时, 用户设备所在的基站向所有可能的目标基 站发送切换请求消息;
在本实施例中, 如果一个基站向一个用户设备的所有可能的目标基站 (相邻基 站, 例如, 图 4A-4C所示的基站 B、 基站 C) 发起切换请求后都无法选择到一个合适 的目标基站, 从而导致无法向该用户设备发送切换命令,(当一个用户设备要切换时, 其所在的基站会同时向多个基站发送切换请求);
步骤 1102, 接收到该目标基站根据该切换请求消息返回的切换准备失败消息; 步骤 1103, 该基站向该用户设备发送切换准备失败的指示。
在本实施例中, 例如, 对于发送的每个切换请求, 该基站都收到了相应的切换 准备失败消息, 该用户设备所在的基站 (如图 4A中的基站 A) 会向该用户设备发送 一个切换准备失败的指示。
在该用户设备链路失败后, 该用户设备会选择小区, 与该小区的基站建立连接, 与该用户设备建立连接的基站可为任意基站,如用户设备观测到链路失败时所在的基 站。
在这种情况下, 该方法还可包括: 在该用户设备与该基站成功建立连接后, 该 基站接收该用户设备发送的该切换准备失败的指示。 该步骤为可选步骤。
此外, 与该用户设备建立连接的基站还可为其他基站 (与该基站相邻或不相邻 的基站)。
在这种情况下, 该方法还可包括: 在该用户设备与其他基站成功建立连接后, 该基站接收其他基站发送的该切换准备失败的指示。 该步骤为可选步骤。
其中, 如果该切换准备失败的指示包含在链路失败指示中向该基站发送, 则该 基站接收该用户设备或该其他基站发送的包含该切换准备失败的指示的链路失败指 示, 该基站忽略该链路失败指示。
图 12是本发明实施例 12的分析链路失败原因的方法。 针对用户设备, 如图 12 所示, 该方法包括:
步骤 1201, 用户设备接收该用户设备所在的基站发送的切换准备失败的指示; 步骤 1202, 在链路失败后, 该用户设备与该基站或其他基站建立连接后, 向该 基站或其他基站发送包括该切换准备失败的指示。
在本实施例中, 该切换准备失败的指示可包含在链路失败报告中通过链路失败 指示消息向该基站或其他基站发送,也可不包含在链路失败报告中与该链路失败报告 一起包含在链路失败指示消息中向该基站或其他基站发送。
此外, 在链路失败后, 在步骤 1202之前, 还可包括: 该用户设备与基站进行连 接重建尝试, 并且连接失败。与该用户设备进行连接重建尝试的基站可以是用户设备 观测到链路失败时所在的基站、与用户设备观测到链路失败时所在的基站相邻的基站 或不相邻的基站。
由上述实施例可知, 该用户设备所在的基站可向该用户设备发送切换准备失败 的指示, 使得该用户设备在与某个基站成功建立 RRC连接后向网络侧 (如基站 B) 发 送该切换准备失败的指示, 这样, 网络侧可确定链路失败原因为切换准备失败, 而不 是由于切换参数设置或覆盖问题导致, 有利于网络优化。
图 13是本发明实施例 13的分析链路失败原因的方法。 针对某个基站, 如图 13 所示, 该方法包括:
步骤 1301, 与用户设备成功连接后, 接收该用户设备发送的切换准备失败的指 示;
步骤 1302, 将该切换准备失败的指示不向或者向用户设备观测到链路失败时所 在的基站发送;
在本实施例中, 可将该切换准备失败的指示包含在链路失败指示中不向用户设 备观测到链路失败时所在的基站发送。
由上述实施例可知,在用户设备在与某个基站成功建立 RRC连接后向网络侧(如 基站 B ) 发送切换准备失败的指示, 这样, 网络侧可确定链路失败原因为切换准备失 败,此时该基站将该切换准备失败的指示不向该用户设备发生链路失败时所在基站发 送, 此外, 该基站也可将该切换准备失败的指示向该用户设备观测到链路失败时所在 基站发送。
下面通过附图结合具体的场景对本发明实施例的分析链路失败原因的方法进行 说明。 例如, 在用户设备发生链路失败 (也是观测到链路失败) 时, 该用户设备 UE 所在的基站为基站 A, 在本实施例中, 该基站 A的相邻基站可包括基站 B和基站 C, 在实际的网络系统中, 该相邻基站的数量可以多于 2个, 其分析过程与包含 2个相邻 基站的情况类似, 这里以相邻基站包含基站 B和基站 C为例进行说明。
在本实施例中,在用户设备链路失败时,该用户设备与相邻基站(如基站 B或 C)、 基站 A或其他基站进行连接重建尝试, 连接重建尝试失败后, 该用户设备与基站成功 建立连接, 该基站可为该相邻基站8、 C, 也可不是相邻基站, 也可为基站 A, 在下述 的实施例中, 以该用户设备选择与相邻基站 B进行连接重建尝试, 以及选择与基站 B 进行 RRC连接为例进行说明。
图 14A是本发明实施例 14的分析链路失败原因的方法, 如图 14A所示, 该方法 包括:
步骤 1401, 用户设备 UE向所在基站 A发送测量报告;
在本实施例中, 与图 4A中的步骤 401类似, 此处不再赘述;
该测量报告可包括本小区的测量结果,邻居小区的测量结果等,与现有技术类似, 此处不再赘述。
步骤 1402, 1402 ' , 在该用户设备 UE需要切换时, 该用户设备 UE所在基站 A 将同时向多个目标基站发送切换请求;
在本实施例中, 基站 A向相邻基站 B和基站 C发送切换请求。
步骤 1403, 1403 ' , 在基站 B和基站 C接收到该切换请求后, 向基站 A返回切 换准备失败消息。 步骤 1404, 基站 A接收到该切换准备失败消息后, 向该用户设备发送切换准备 失败指示。
步骤 1405, 链路失败后, 该 UE与其基站进行连接重建尝试;
在本实施例中, 进行 RRC连接重建, 例如选择与基站 B进行连接重建尝试, 但是 由于在基站 B中没有该 UE的上下文, 因此, 该连接重建失败, 其具体过程参见实施 例 4A的步骤 405和附图 5, 此处不再赘述。
步骤 1406, 该 UE与基站成功建立 RRC连接;
在本实施例中, 与该 UE成功建立 RRC连接的基站可为基站 A, 基站 B或 C, 或者 其他基站, 例如, 该 UE选择与基站 B建立连接, 其具体过程参见实施例 4A的步骤 406和附图 6, 此处不再赘述。
步骤 1407, 在该 UE与基站 B成功建立 RRC连接后, 该 UE向网络侧 (即基站 B) 发送该链路失败的指示;
在本实施例中,可将该切换准备失败指示包含在该链路失败报告中通过链路失败 指示消息发送; 此外, 也可将该切换准备失败指示包含在链路失败指示消息中发送。
步骤 1408, 基站 B在接收到该切换准备失败的指示后, 不向基站 A发送链路失 败指示。
或者在本实施例中, 包括步骤 1408 ' , 基站 B在接收到该切换准备失败的指示 后, 将该切换准备失败的指示包含在链路失败指示中向基站 A发送。
图 14B是本发明实施例 15的分析链路失败原因的方法。该实施例 15与图 14A所 示的实施例 14的不同之处在于, 在步骤 1406 ' 中, 该 UE选择与基站 A建立连接, 并成功建立连接; 在步骤 1407 ' 中, 该 UE将切换准备失败的指示向基站 A发送, 该 步骤可选。
图 14C是本发明实施例 16的分析链路失败原因的方法。该实施例 16与图 14A所 示的实施例 14的不同之处在于, 在步骤 1406 " 中, 该 UE选择与基站 D建立连接, 并成功建立连接; 在步骤 1407 " 中, 该 UE将切换准备失败的指示向基站 D发送。 该 基站 D不是基站 A的相邻基站。 在步骤 1408 " 中, 基站 D不向基站 A发送该切换准 备失败的指示。 此外, 可选步骤 1409, 基站 D向基站 A发送该切换准备失败的指示。
由上述实施例可知, 该 UE接收基站 A发送的切换准备失败指示, 并在与某个基 站建立连接后, 将该切换准备失败的指示向该基站发送, 这样, 在该基站接收到该指 示后,可将该切换准备失败的指示向该用户设备发生链路失败时所在的基站发送或者 不发送, 因此, 该基站确定该链路失败是由切换准备失败导致, 而不是由切换参数的 设置问题或覆盖问题等导致, 从而该基站可忽略该链路失败消息, 有助于更加准确地 优化网络。
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步骤是可以 通过程序来指令相关的硬件完成, 所述的程序可以存储于一计算机可读取存储介质 中, 该程序在执行时, 可以包括上述实施例方法中的全部或部分步骤, 所述的存储介 质可以包括: R0M、 RAM, 磁盘、 光盘等。
本发明实施例还提供了一种基站和用户设备, 如下面的实施例所述。 由于该基 站和用户设备解决问题的原理与上述基于基站和用户设备的分析链路失败原因的方 法相似, 因此该基站和用户设备的实施可以参见方法的实施, 重复之处不再赘述。
图 15是本发明实施例 17的基站构成示意图。 该基站是指链路失败前用户设备 所在基站 (用户设备观测到链路失败时所在的基站), 如基站 A。 如图 15所示, 该基 站包括第五发送单元 1501、 第四接收单元 1502和第七处理单元 1503; 其中,
第五发送单元 1501, 用于在链路失败前, 用户设备需要切换时, 向所有可能的 目标基站发送切换请求消息;
第四接收单元 1502, 用于接收该目标基站根据该切换请求消息返回的切换准备 失败消息;
第七处理单元 1503, 用于向该用户设备发送切换准备失败的指示。
该基站的工作过程如图 11所示的实施例 11所述, 此处不再赘述。
此外, 该基站还可包括第五接收单元(未示出); 其中, 该第五接收单元用于在 该用户设备与其他基站成功建立连接后, 接收该其他基站发送的切换准备失败的指 示。如果此时其他基站将该指示包含在链路失败指示中发送、或者将该指示包含在链 路失败报告中通过链路失败指示发送, 该基站可忽略该链路失败指示。
在另一个实施例中, 在用户设备链路失败后, 在此与该基站成功建立连接的情 况下, 该第五接收单元用于在该用户设备与该基站成功建立连接后, 接收该用户设备 发送的切换准备失败的指示。 在上述实施例中, 该第五接收单元为可选部件。
图 16是本发明实施例 18的用户设备的构成示意图。 如图 16所示, 该用户设备包 括: 第六接收单元 1601和第八处理单元 1602; 其中, 第六接收单元 1601, 用于接收该用户设备所在的基站发送的切换准备失败的指 示; 第八处理单元 1602, 用于在链路失败后, 该用户设备与该基站或其他基站建立 连接后, 向该基站或其他基站发送该切换准备失败的指示; 其中, 该切换准备失败的 指示可包含在链路失败报告中向其他基站发送。
此外, 该用户设备还可包括连接建立单元, 用于建立与该基站或其他基站之间 的连接, 其建立连接的过程与现有技术类似, 如实施例 4和附图 6所述, 此处不再赘 述。
此外, 该用户设备还可包括连接重建单元, 用于在该用户设备链路失败时, 与 该相邻基站进行连接重建尝试, 其建立连接的过程与现有技术类似, 如实施例 4和附 图 5所述, 此处不再赘述。
图 17是本发明实施例 15的基站构成示意图。 该基站是指与用户设备成功建立 连接的基站, 该基站可为相邻基站, 如基站 B或 C, 也可不是该相邻基站。 如图 17 所示, 第七接收单元 1701和第十处理单元 1702; 其中,
第七接收单元 1701, 用于在该基站与该用户设备成功连接后, 接收该用户设备 发送的切换准备失败的指示;
第九处理单元 1702, 用于将该切换准备失败的指示不向或者向用户设备观测到 链路失败时所在的基站发送。
此外, 该基站还可包括连接建立单元, 用于建立与用户设备之间的连接, 其建 立连接的过程与现有技术类似, 如实施例 4和附图 6所述, 此处不再赘述。
由上述实施例可知, 在用户设备要切换时, 该 UE所在基站 A向相邻基站发送切换 请求, 在接收到切换准备失败消息后, 将切换准备失败指示向该用户终端发送, 使得该 用户设备与某个基站建立连接后, 将携带切换准备失败指示的链路失败报告向该基站发 送, 这样, 在该基站接收到该链路失败报告后, 可将该链路失败报告向该用户设备发生 链路失败时所在的基站发送或者不发送, 因此, 该基站确定该链路失败是由切换准备失 败导致, 而不是由切换参数的设置问题或覆盖问题等导致, 从而该基站可忽略该链路失 败消息, 有助于更加准确地优化网络。
本发明实施例还提供一种计算机可读程序, 其中当在基站中执行该程序时, 该 程序使得计算机在该基站中执行实施例 1、 2、 4至 6、 11、 13、 14至 16所述的分析 链路失败原因的方法。 本发明实施例还提供一种存储有计算机可读程序的存储介质, 其中该计算机可 读程序使得计算机在基站中执行实施例 1、 2、 4至 6、 11、 13、 14至 16所述的分析 链路失败原因的方法。
本发明实施例还提供一种计算机可读程序,其中当在用户设备中执行该程序时, 该程序使得计算机在该用户设备中执行实施例 3、 4至 6、 12、 14至 16所述的分析链 路失败原因的方法。
本发明实施例还提供一种存储有计算机可读程序的存储介质, 其中该计算机可 读程序使得计算机在用户设备中执行实施例 3、 4至 6、 12、 14至 16所述的分析链路 失败原因的方法。
本发明以上的装置和方法可以由硬件实现, 也可以由硬件结合软件实现。本发明 涉及这样的计算机可读程序, 当该程序被逻辑部件所执行时, 能够使该逻辑部件实现 上文所述的装置或构成部件, 或使该逻辑部件实现上文所述的各种方法或步骤。本发 明还涉及用于存储以上程序的存储介质, 如硬盘、 磁盘、 光盘、 DVD、 flash 存储器 等。 以上结合具体的实施方式对本发明进行了描述, 但本领域技术人员应该清楚, 这 些描述都是示例性的, 并不是对本发明保护范围的限制。本领域技术人员可以根据本 发明的精神和原理对本发明做出各种变型和修改,这些变型和修改也在本发明的范围 内。

Claims

权 利 要 求 书
1、 一种分析链路失败原因的方法, 所述方法包括:
用户设备观测到链路失败时所在的基站接收其他基站或所述用户设备发送的标 识信息, 所述标识信息包括: 与所述用户设备有关的标识、 和 /或所述用户设备在所 述基站中的标识;
在所述基站确定所述标识信息储存在所述基站中时, 所述基站确定链路失败是 切换准备失败导致。
2、根据权利要求 1所述的方法, 其中, 所述标识信息是所述用户设备在链路失 败后进行连接重建尝试时所使用的信息;
在所述用户设备链路失败后, 再次与所述基站成功建立连接后, 所述基站接收 所述用户设备发送的标识信息;
在所述用户设备链路失败, 且与所述其他基站成功建立连接后, 所述其他基站 从所述用户设备获得所述标识信息。
3、根据权利要求 1或 2所述的方法, 其中, 所述标识信息包含在链路失败报告 中, 所述方法还包括: 所述基站忽略所述链路失败报告。
4、 根据权利要求 1或 2所述的方法, 其中, 所述方法还包括: 删除所述基站中 储存的与所述用户设备对应的标识信息。
5、 根据权利要求 1或 2所述的方法, 其中, 在所述用户设备链路失败之前, 所 述方法还包括:
在所述用户设备要切换时, 所述基站向所有可能的目标基站发送切换请求; 在所述基站接收到所述目标基站返回的切换准备失败消息时, 所述基站储存所 述标识信息。
6、根据权利要求 5所述的方法, 其中, 当所述基站中储存的标识信息的储存时 间超过预定时间时, 所述基站删除储存的所述标识信息。
7、根据权利要求 5所述的方法, 其中, 在所述基站接收到所述目标基站返回的 切换准备失败消息后, 所述方法还包括:
所述基站向所述目标基站发送切换请求;
在接收到至少一个目标基站返回的切换请求答复消息时, 删除所述基站中存储 的所述标识信息。
8、 一种分析链路失败原因的方法, 所述方法包括:
基站在与用户设备成功建立连接后接收所述用户设备发送的标识信息, 所述标 识信息包括: 与所述用户设备有关的标识、 和 /或所述用户设备在观测到链路失败时 所在的基站中的标识;
将所述标识信息向所述用户设备在观测到链路失败时所在的基站发送。
9、根据权利要求 8所述的方法, 其中, 所述标识信息是所述用户设备在链路失 败后进行连接重建尝试时所使用的信息。
10、 一种分析链路失败原因的方法, 所述方法包括:
用户设备在发生链路失败时, 在进行连接重建尝试时生成与所述用户设备有关 的标识信息;
在所述用户设备与基站成功建立连接后, 所述用户设备向所述基站发送所述标 识信息, 其中, 所述标识信息包括: 与所述用户设备有关的标识、 和 /或所述用户设 备在观测到链路失败时所在的基站中的标识。
11、 一种基站, 所述基站为用户设备观测到链路失败时所在的基站, 包括: 第一接收单元, 所述第一接收单元用于接收其他基站或所述用户设备发送的标 识信息, 所述标识信息包括: 与所述用户设备有关的标识、 和 /或所述用户设备在观 测到链路失败时所在基站中的标识;
第一处理单元, 所述第一处理单元用于在所述基站确定所述标识信息储存在所 述基站中时, 确定链路失败是切换准备失败导致。
12、根据权利要求 11所述的基站,其中,所述标识信息包含在链路失败报告中, 所述第一处理单元忽略所述链路失败报告。
13、根据权利要求 11或 12所述的基站, 其中, 所述基站还包括第二处理单元, 所述第二处理单元用于删除所述基站中储存的所述标识信息。
14、 根据权利要求 11或 12所述的基站, 其中, 所述基站还包括:
第一发送单元, 所述第一发送单元用于在所述用户设备链路失败之前, 在所述 用户设备要切换时, 向所有可能的目标基站发送切换请求;
第三处理单元, 所述第三处理单元用于在接收到所述目标基站返回的切换准备 失败消息时, 储存所述标识信息。
15、 根据权利要求 14所述的基站, 其中, 所述基站还包括第四处理单元, 所述 第四处理单元用于在所述基站中储存的标识信息的储存时间超过预定时间时,删除储 存的所述标识信息。
16、 根据权利要求 14所述的基站, 其中, 所述基站还包括:
第二发送单元, 所述第二发送单元用于在接收到所述目标基站返回的切换准备 失败消息后, 向所述目标基站发送切换请求;
第五处理单元, 所述第五处理单元用于在接收到至少一个目标基站返回的切换 请求答复消息时, 删除所述基站中存储的所述标识信息。
17、 一种基站, 所述基站包括:
第三接收单元,所述第三接收单元用于在所述基站与用户设备成功建立连接后, 接收所述用户设备发送的标识信息,所述标识信息包括:与所述用户设备有关的标识、 和 /或所述用户设备在观测到链路失败时所在的基站中的标识;
第三发送单元, 所述第三发送单元用于将所述标识信息向所述用户设备在观测 到链路失败时所在的基站发送。
18、根据权利要求 17所述的基站, 其中, 所述标识信息是所述用户设备在链路 失败后进行连接重建尝试时所使用的信息。
19、 一种用户设备, 所述用户设备包括:
第六处理单元, 所述第六处理单元用于在用户设备发生链路失败时, 在进行连 接重建尝试时生成与所述用户设备有关的标识信息;
第四发送单元, 所述第四发送单元用于在与基站成功建立连接后向所述基站发 送所述标识信息, 所述标识信息包括: 与所述用户设备有关的标识、 和 /或所述用户 设备在观测到链路失败时所在的基站中的标识。
20、 一种分析链路失败原因的方法, 所述方法包括:
在用户设备要切换时, 所述用户设备所在的基站向所有可能的目标基站发送切 换请求消息;
接收到所述目标基站根据所述切换请求消息返回的切换准备失败消息; 向所述用户设备发送切换准备失败的指示。
21、 根据权利要求 20所述的方法, 其中, 在所述用户设备链路失败后, 所述方 法还包括: 在所述用户设备与所述基站或其他基站成功建立连接后, 接收所述用户设备或 所述其他基站发送的所述切换准备失败的指示。
22、 一种分析链路失败原因的方法, 所述方法包括:
用户设备接收所述用户设备所在的基站发送的切换准备失败的指示; 在所述用户设备链路失败后,所述用户设备与所述基站或其他基站建立连接后, 向所述基站或其他基站发送所述切换准备失败的指示。
23、 一种分析链路失败原因的方法, 所述方法包括:
基站与用户设备成功连接后, 接收所述用户设备发送的切换准备失败的指示; 将所述切换准备失败的指示不向或者向用户设备观测到链路失败时所在的基站 发送。
24、 一种基站, 所述基站包括:
第五发送单元, 所述第五发送单元用于在用户设备要切换时, 向所有可能的目 标基站发送切换请求消息;
第四接收单元, 所述第四接收单元用于接收所述目标基站根据所述切换请求消 息返回的切换准备失败消息;
第七处理单元,所述第七处理单元用于向所述用户设备发送切换准备失败的指示。
25、 根据权利要求 24所述的基站, 其中, 所述基站还包括:
第五接收单元, 所述第五接收单元用于在所述用户设备链路失败, 所述用户设 备与所述基站或其他基站成功建立连接后,接收所述用户设备或其他基站发送的所述 切换准备失败的指示。
26、 一种用户设备, 所述用户设备包括:
第六接收单元, 所述第六接收单元用于接收所述用户设备所在的基站发送的切 换准备失败的指示;
第八处理单元, 所述第八处理单元用于在所述链路失败, 所述用户设备与所述 基站或其他基站建立连接后, 向所述基站或其他基站发送所述切换准备失败的指示。
27、 一种基站, 所述基站包括:
第七接收单元,所述第七接收单元用于在所述基站与所述用户设备成功连接后, 接收所述用户设备发送的切换准备失败的指示;
第九处理单元, 所述第九处理单元用于将所述切换准备失败的指示不向或者向 用户设备观测到链路失败时所在的基站发送。
28、 一种计算机可读程序, 其中当在基站中执行所述程序时, 所述程序使得计 算机在所述基站中执行如权利要求 1至 9、 20、 21和 23的任一项权利要求所述的分 析链路失败原因的方法。
29、 一种存储有计算机可读程序的存储介质, 其中所述计算机可读程序使得计 算机在基站中执行如权利要求 1至 9、 20、 21和 23的任一项权利要求所述的分析链 路失败原因的方法。
30、 一种计算机可读程序, 其中当在用户设备中执行所述程序时, 所述程序使 得计算机在所述用户设备中执行如权利要求 10或 22所述的分析链路失败原因的方 法。
31、 一种存储有计算机可读程序的存储介质, 其中所述计算机可读程序使得计 算机在用户设备中执行如权利要求 10或 22所述的分析链路失败原因的方法。
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