WO2012071704A1 - 报告无线链路失败信息的方法、终端设备和基站 - Google Patents

报告无线链路失败信息的方法、终端设备和基站 Download PDF

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Publication number
WO2012071704A1
WO2012071704A1 PCT/CN2010/079271 CN2010079271W WO2012071704A1 WO 2012071704 A1 WO2012071704 A1 WO 2012071704A1 CN 2010079271 W CN2010079271 W CN 2010079271W WO 2012071704 A1 WO2012071704 A1 WO 2012071704A1
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WO
WIPO (PCT)
Prior art keywords
link failure
radio link
terminal device
failure information
carrier
Prior art date
Application number
PCT/CN2010/079271
Other languages
English (en)
French (fr)
Inventor
鲁艳玲
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 KR1020137014210A priority Critical patent/KR20130093654A/ko
Priority to PCT/CN2010/079271 priority patent/WO2012071704A1/zh
Priority to JP2013541168A priority patent/JP2013544474A/ja
Priority to CN201080069958.6A priority patent/CN103190169B/zh
Priority to EP10860147.7A priority patent/EP2648440A1/en
Publication of WO2012071704A1 publication Critical patent/WO2012071704A1/zh
Priority to US13/892,767 priority patent/US20130250857A1/en

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/02—Arrangements for optimising operational condition
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/10—Scheduling measurement reports ; Arrangements for measurement reports
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0083—Determination of parameters used for hand-off, e.g. generation or modification of neighbour cell lists
    • H04W36/00835—Determination of neighbour cell lists
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0083—Determination of parameters used for hand-off, e.g. generation or modification of neighbour cell lists
    • H04W36/00837—Determination of triggering parameters for hand-off
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/18—Management of setup rejection or failure

Definitions

  • the present invention relates to the field of communications, and in particular, to a method, a terminal device, and a base station for reporting radio link failure information. Background technique
  • Radio Link Failure is a transient state of the terminal equipment.
  • an event that triggers a radio link failure may include: the terminal device detects an uplink out-of-synchronization, a random access control layer (MAC: Media Access Control) layer for a period of time There is a problem with the access process or the maximum number of retransmissions is reached at the Radio Link Control (RLC) layer. If any of the above events occur, the link failure is considered to have occurred.
  • the terminal device either enters the idle state, can only listen to the downlink information of the base station, and cannot perform uplink data transmission. Otherwise, the link re-establishment process is initiated, and the link is reestablished with the network side.
  • the radio link fails, that is, there are many specific reasons for triggering the radio link failure event.
  • the following example shows.
  • the terminal device needs to perform handover at a suitable time point when the link situation with the source base station is deteriorated and the link situation with the target base station tends to be better.
  • the terminal device finds that the link at the target base station is not good enough and the radio link fails at the target base station, and at this time, the terminal device also switches back to the source base station or switches to another base station.
  • an overlay "blind spot" will appear.
  • a radio link failure with the source base station may occur before a suitable handover base station is found. If the terminal device moves to a place where it is covered, the terminal device needs to re-establish the link with the base station capable of providing coverage.
  • the determination of the cause of the failure of the wireless link is very important for optimizing the wireless network.
  • the network side fails to analyze the cause of the radio link failure, the network side needs to report the information about the failure of the radio link through the air interface, so that the network side can use the related information to analyze the cause of the failure of the radio link. And take corresponding measures to optimize the network.
  • FIG. 1 is a flowchart of a radio link failure information reported by a terminal device to a network side in a single carrier system.
  • the base station eNB sends a request to the user equipment (UE: User Equipment) to report the latest link measurement report when the radio link fails, and the UE information request message may be sent.
  • the user equipment UE reports the measurement report to the base station by using a UE Information Response message.
  • the measurement report may include the following information:
  • the network side After obtaining the measurement report, the network side analyzes the cause of the failure. If the link fails, not only the link quality between the serving cell and the current serving cell is poor, but also the quality of the link between the adjacent neighboring cells. Poor, it is determined that the link failure may be caused by the coverage blind spot; if the link quality of the serving cell is poor when the link fails, and the link quality with some neighboring cells is better, then It is possible to determine that the link failure is caused by a late switch. In this way, the network side can take corresponding optimization measures according to the above reasons.
  • the analysis result on the network side is:
  • the cause of the failure of the radio link is that the terminal device switches too early or too late, it is determined that there may be a problem in determining the parameter setting of the switching time point during the handover process, according to The analysis results adjust the parameter. For example, if the link quality of the terminal device and the source base station is lower than the preset threshold A and the link quality with the target base station is higher than the preset threshold B, and the state continues after the preset time T, then Through the report of the terminal device, the base station notifies the terminal device to perform handover. If the threshold A is set too low, the switch will be too late, otherwise the switch will be too early.
  • the threshold B is set too high, a too late phenomenon will occur, and vice versa.
  • the same problem occurs in time T. If it is too long, the switching is too late. If it is too short, the switching is too early. In this way, the parameters A, B or T need to be adjusted according to the analysis results.
  • the reason for determining that the radio link fails is that the network has a blind spot, then measures such as adding a base station, increasing the base station transmit power, or adjusting the antenna direction angle are taken to ensure coverage integrity.
  • 2 is a schematic diagram of carrier aggregation.
  • the terminal can work in a bandwidth of up to 100 MHz, and can aggregate 5 carriers, that is, the terminal device can have 5 service carriers in the same cell at the same time.
  • the multiple carriers only one carrier can be the primary carrier, and the rest are the secondary carriers.
  • a carrier with better channel quality is selected as the primary carrier. Therefore, the primary carrier can be changed for each terminal device. If the primary carrier needs to be changed in the same cell, it needs to be completed through a handover process. Therefore, in a multi-carrier system, the case of link switching is more complicated than that of a single carrier.
  • a terminal there are multiple service carriers in the same cell, that is, one primary carrier and one or multiple secondary carriers provide services for the terminal device, so that a wireless link may occur on each carrier. failure.
  • the primary carrier changes and needs to be switched. In these switching processes, there is also a problem that the switching is too late or too early.
  • multi-carrier systems can also have problems covering blind spots.
  • the inventors have found that the prior art has the following disadvantages:
  • the link failure information is still reported by using the method shown in FIG. 1, the related information obtained by the network is obtained on the network side.
  • the cause of failure is analyzed, it may cause the network side to make a mistake, so that the corresponding measures cannot be taken to optimize the network;
  • the terminal device when the handover of the primary carrier of the terminal device occurs, if the handover is too late, the terminal device performs link reconstruction on the target primary carrier (original secondary carrier) after the link failure occurs at the source primary carrier. Since the location of the terminal device may not be at the edge position of the cell when the primary carrier changes, the channel quality with the neighboring cell is also poor, if the terminal device only reports the chain on the source primary carrier when the link fails.
  • target primary carrier original secondary carrier
  • the network side considers that the terminal device performs link reconstruction on another carrier after the link failure occurs on one carrier, and the terminal device and the source host carrier If the link quality and the link quality of the neighboring cell are both poor, the network side determines that the radio link failure may be caused by the coverage blind spot, and the determination is obviously wrong.
  • An object of the embodiments of the present invention is to provide a method for reporting radio link failure information, a terminal device, and a base station, where the terminal device may include a link quality measurement report on a service carrier of a cell where the terminal device is located when a link failure occurs. Transmitting, by the network side, the information reported by the network side to the network side, and the information about the radio link failure information of the secondary carrier in the serving carrier and the link quality measurement report of the neighboring cell of the cell in the service carrier is reported to the network side. Analysis of the cause of link failure, avoiding misjudgment, and solving the problems in the prior art.
  • An aspect of the present invention provides a method for reporting radio link failure information, the method comprising: receiving, by a terminal device, a request for reporting radio link failure information sent by a network side; the terminal device according to the request, the wireless chain The path failure information is reported to the network side, so that the network side performs the analysis of the cause of the radio link failure according to the reported radio link failure information.
  • the radio link failure information includes:
  • the link quality measurement report on the serving carrier of the cell where the terminal device is located the carrier identification information of the secondary carrier in the serving carrier, and the link quality measurement report of the neighboring cell of the cell in which the terminal is located.
  • a method for reporting radio link failure information comprising: transmitting, to a terminal device, a request indicating that the terminal device reports radio link failure information; receiving the terminal device according to the request
  • the returned radio link failure information causes the network side to perform the analysis of the radio link failure reason according to the reported radio link failure information.
  • the radio link failure information includes:
  • the link quality measurement report on the serving carrier of the cell where the terminal device is located the carrier identification information of the secondary carrier in the serving carrier, and the link quality measurement report of the neighboring cell of the cell in which the terminal is located.
  • a terminal device where the terminal device includes:
  • a first receiving unit configured to receive, by the network side, the indication that the terminal device reports the wireless link loss Request for defeating information
  • the first sending unit is configured to report the radio link failure information to the network side according to the request received by the first receiving unit, so that the network side analyzes the cause of the radio link failure according to the reported radio link failure information.
  • the radio link failure information includes: a link quality measurement report on a serving carrier of the cell where the terminal device is located, and a carrier identification information of the secondary carrier in the serving carrier, and a cell in the cell where the link failure occurs. Link quality measurement report for neighboring cells.
  • a base station includes: a second sending unit, configured to send, to the terminal device, a request that the terminal device reports the radio link failure information;
  • radio link fails Information includes:
  • the link quality measurement report on the serving carrier of the cell where the terminal device is located the carrier identification information of the secondary carrier in the serving carrier, and the link quality measurement report of the neighboring cell of the cell in which the terminal is located.
  • a computer readable program wherein when the program is executed in a terminal device, the program causes the computer to execute the above method of reporting wireless link failure information in the terminal device.
  • a storage medium storing a computer readable program, wherein the computer readable program causes a computer to perform the above method of reporting wireless link failure information in a terminal device.
  • a computer readable program wherein when the program is executed in a base station, the program causes a computer to perform the above method of reporting radio link failure information in the base station.
  • a storage medium storing a computer readable program, wherein the computer readable program causes a computer to perform the above method of reporting wireless link failure information in a base station.
  • the terminal device may include, according to the request sent by the network side, the cell where the terminal device is located when the link failure occurs.
  • the internal radio link failure information is reported to the network side, so that the network side obtains a complete link quality measurement report, and uses the reported link quality measurement report to analyze the cause of the radio link failure, thereby avoiding misjudgment and solving There are problems in the prior art.
  • FIG. 1 is a flowchart of a radio link failure information reported by a terminal device to a network side in a single carrier system
  • FIG. 2 is a schematic diagram of carrier aggregation in a carrier aggregation system
  • FIG. 3 is a flowchart of reporting radio link failure information according to Embodiment 1 of the present invention
  • FIG. 4 is a flowchart of reporting radio link failure information according to Embodiment 2 of the present invention
  • FIG. 5 is a report radio chain according to Embodiment 3 of the present invention
  • FIG. 6 is a schematic diagram showing the structure of a terminal device according to Embodiment 4 of the present invention
  • Fig. 7 is a block diagram showing the configuration of a base station according to a fifth embodiment of the present invention.
  • LTE-A Long Term Evaluation Advanced
  • FIG. 3 is a flowchart of a method for reporting radio link failure information according to Embodiment 1 of the present invention. As shown in Figure 3, the method includes:
  • Step 301 The terminal device receives the request for reporting the radio link failure information sent by the network side.
  • Step 302 The terminal device reports the radio link failure information to the network side according to the request, so that the network side performs the radio link failure information according to the reported radio link failure information. Analysis of the cause of the failure of the wireless link; wherein the wireless link failure information includes:
  • the link quality measurement report on the serving carrier of the cell where the terminal device is located the carrier identification information of the secondary carrier in the serving carrier, and the link quality measurement report of the neighboring cell of the cell in which the cell is located.
  • the network side for example, the base station may use the UE Information Request message to send the request; in step 302, after receiving the request, the terminal device returns the wireless link by using the UE Information Response message. Failure information.
  • the network side for example, the base station may use the UE Information Request message to send the request; in step 302, after receiving the request, the terminal device returns the wireless link by using the UE Information Response message. Failure information.
  • the link quality measurement report on the service carrier of the cell where the terminal device is located includes: a link quality measurement report on the service carrier where the radio link fails, and a link failure occurs.
  • the carrier that fails the link may be the primary carrier or the secondary carrier.
  • the base station and the terminal device arbitrarily stipulate the carrier identification information of the primary carrier
  • the wireless link failure information does not include the carrier identification information of the primary carrier, and thus, the link quality measurement report received by the base station does not exist.
  • the base station may determine, according to the agreement, the link quality measurement report as a link measurement report on the primary carrier.
  • the radio link failure information further includes carrier identification information of the primary carrier.
  • the radio link failure information may include: a link quality measurement report on all service carriers of the cell where the terminal device is located, and carrier identification information of all service carriers, and neighboring cells of the cell in which the cell is located when a link failure occurs. Link quality measurement report.
  • the network side can obtain complete radio link failure information by using the foregoing method, and use the link quality measurement report to analyze the cause of the radio link failure, thereby avoiding misjudgment. , solves the problems existing in the prior art.
  • FIG. 4 is a flow chart of a method for reporting radio link failure information according to Embodiment 2 of the present invention. As shown in Figure 4, the method includes:
  • Step 401 The base station sends a request to the terminal device to indicate that the terminal device reports the radio link failure information.
  • Step 402 Receive the radio link failure information that is returned by the terminal device according to the request, and enable the network side to perform the analysis of the radio link failure reason according to the reported radio link failure information.
  • the radio link failure information includes:
  • the link quality measurement report on the serving carrier of the cell where the terminal device is located the carrier identification information of the secondary carrier in the serving carrier, and the link quality measurement report of the neighboring cell of the cell in which the cell is located.
  • the base station may send the request by using a UE Information Request message; in step 402, the terminal device returns a radio link failure message by using a UE Information Response message.
  • the base station may send the request by using a UE Information Request message; in step 402, the terminal device returns a radio link failure message by using a UE Information Response message.
  • the terminal device returns a radio link failure message by using a UE Information Response message.
  • any other message may be used to send the request and return the radio link failure information.
  • the base station may be a base station that is reestablished with the terminal device link.
  • the base station and the terminal device when the base station and the terminal device have previously agreed not to report the primary carrier identification information, when the link quality measurement report received by the base station does not have corresponding carrier identification information, the base station may determine the link quality according to the agreement.
  • the measurement report reports the link measurement on the primary carrier.
  • the radio link failure information may further include carrier identification information of the primary carrier.
  • the radio link failure information may include: a link quality measurement report on all service carriers of the cell where the terminal device is located, and carrier identification information of all service carriers in the cell, and neighboring cells in the cell when the link fails. The link quality measurement report of the cell.
  • the base station when the base station receives the radio link failure information, the base station may directly analyze the cause of the radio link failure according to the radio link failure information.
  • the base station may also send the link quality result to other functional entities on the network side, and the other functional entities analyze the cause of the radio link failure according to the radio link failure information.
  • the method may further include: the base station transmitting the radio link failure information to other functional entities on the network side, and causing other functional entities on the network side to perform the radio link failure reason according to the reported radio link failure information. analysis.
  • the network side can obtain complete radio link failure information, and use the link quality measurement report to analyze the cause of the radio link failure, thereby avoiding misjudgment and solving the present problem.
  • the terminal device can detect whether a link failure occurs in real time, and the network side is also aware of the link failure of the terminal device. After the network side learns that the terminal device fails to generate a link, the network side can Sending, to the terminal device, a request for the terminal device to report the radio link failure information; the terminal device reports the radio link failure information to the network side according to the request, so that the network side performs the link failure according to the radio link failure information.
  • the analysis of the reasons finally leads to the optimization of the network.
  • the following describes a method for reporting radio link failure information in the multi-carrier system, in which the base station instructs the terminal device to report the radio link failure information as an example.
  • FIG. 5 is a flowchart of a method for reporting radio link failure information according to Embodiment 3 of the present invention. As shown in Figure 5, the method includes:
  • Step 501 The base station determines whether the terminal device is required to report the radio link failure information; if the determination result is yes, step 502 is performed; otherwise, the determination is continued;
  • the base station may determine, according to an instruction sent by the network side entity, whether the terminal device reports the radio link failure information, that is, if the instruction sent by the network side entity is received, the terminal device may be required to report the radio link failure information, otherwise It is determined that the terminal device does not need to report the radio link failure information; the network side entity may be the base station itself, or the base station where the radio link fails, or other functional entities on the network side, such as a network management entity.
  • Step 502 in step 501, if the base station determines that the terminal device is required to report the radio link failure information, the base station sends a request message to the terminal device indicating that the terminal device reports the radio link failure information;
  • the request message may be a UE Information Request message.
  • Step 503 The terminal device receives the request message.
  • Step 504 the terminal device determines whether there is a corresponding radio link failure information; if the determination result is yes, step 505 is performed, otherwise step 506 is performed;
  • the terminal device can detect whether a link failure occurs in real time, and the link failure of the network device for the terminal device is also known. However, when a link failure occurs, because the terminal device may take too long between the last measurement before the link failure occurs and the link failure is detected, the measurement is considered invalid for the link failure. There is no corresponding link to measure quality results. Therefore, even if a radio link fails, there may be no corresponding radio link failure information at the terminal device.
  • Step 505 If the result of the determination is yes in step 504, the terminal device returns a response message to the base station, where the response message includes radio link failure information.
  • the response message of the terminal device may be a UE Information Response message.
  • the wireless link failure information may include: when the link fails, the terminal device is located. a link quality measurement report on all service carriers of the cell and carrier identification information of the secondary carrier in all service carriers, and a link quality measurement report of the neighboring cell of the cell in which the cell is located;
  • the radio link failure information may further include carrier identification information of the primary carrier.
  • the radio link failure information may include: a link quality measurement report on all service carriers of the cell where the terminal device is located, and carrier identification information corresponding to all service carriers, and a neighboring cell of the cell in which the cell is located when the link fails. Link quality measurement report.
  • Step 506 In step 504, if the determination result is no, the terminal device does not return a response message to the base station, or returns the response message, but the content of the response message is empty.
  • Step 507 after step 505, the base station determines whether the response message is received within a preset time; if the determination result is yes, step 508 is performed, otherwise step 509 is performed;
  • Step 508 In step 507, if the determination result is yes, the base station performs analysis of the cause of the radio link failure according to the radio link failure information to perform network optimization.
  • Step 509 In step 507, if the result of the determination is no, it is determined that the reception response message fails, and the process ends.
  • the base station is used as a network side entity for performing radio link failure cause analysis.
  • other network side entities such as a network management entity, may be employed to perform the above analysis.
  • it may also include:
  • Step 510 in step 507, if the determination result is yes, the base station connects the wireless link.
  • the failure information is sent to other network side entities, so that the other network side entities use the wireless link failure information for analysis to optimize the network.
  • the network side may send a request to the terminal device to indicate that the terminal device reports the radio link failure information, and the terminal device reports the radio link failure information to the network side according to the request, so that the network side obtains the a carrier identifier, and a link measurement report on all carriers of the cell in which the terminal device is located when the link fails, and a radio link failure report of the link measurement report of the neighboring cell, and according to the radio link failure information
  • the analysis of the cause of the link failure avoids the occurrence of misjudgment, and finally optimizes the network and solves the problems in the prior art.
  • a terminal device fails a link at the source primary carrier, another link is reconstructed. After the link is re-established, if the terminal device reports, according to the network side request, the link measurement quality and the corresponding carrier identification information of all service carriers of the cell in which the link fails, and the link measurement quality of the neighboring cell. If the radio link fails, the network side can determine the cause of the link failure according to the radio link failure information reported by the terminal device:
  • the network side may determine the link failure. It may be caused by a blind spot.
  • the terminal device has poor link measurement quality with all service carriers of the cell in which the link fails, and the link measurement quality with a neighboring cell is good, and the switched primary carrier is adjacent.
  • the cell, the I-network side determines that the link failure may be caused by the inter-cell handover too late.
  • the link measurement quality at the source primary carrier is poor, and the link measurement quality with a certain secondary carrier is good, and the switched primary carrier is still in the original cell, then the link measurement quality of the adjacent cell is Whether it is better, the link failure is most likely caused by intra-cell handover (changing the primary carrier) too late.
  • the network side analyzes the cause of the link failure according to the radio link failure information reported by the terminal device, avoids the occurrence of misjudgment, and finally optimizes the network, and solves the problems in the prior art.
  • the computer readable storage medium may include all or part of the steps in the foregoing embodiment, and the storage medium may include: a ROM, a RAM, a magnetic disk, an optical disk, and the like.
  • the embodiment of the invention further provides a base station and a terminal device, as described in the following embodiments.
  • the principle of the problem is solved by the base station and the terminal device.
  • the implementation of the base station and the terminal device can be implemented by referring to the method.
  • Figure 6 is a block diagram showing the structure of a terminal device according to Embodiment 4 of the present invention. As shown in Figure 6, the terminal device includes a first receiving unit 601 and a first transmitting unit 602;
  • the first receiving unit 601 is configured to receive a request sent by the network side to indicate that the terminal device reports the wireless link failure information
  • the first sending unit 602 is configured to report the radio link failure information to the network side according to the request received by the first receiving unit 601, so that the network side analyzes the cause of the radio link failure according to the reported radio link failure information.
  • the wireless link failure information includes:
  • the link quality measurement report on the serving carrier of the cell where the terminal device is located the carrier identification information of the secondary carrier in the serving carrier, and the link quality measurement report of the neighboring cell of the cell in which the cell is located.
  • the link quality measurement report on the service carrier of the cell where the terminal device is located includes: a link quality measurement report on the service carrier where the radio link fails, and a link failure occurs.
  • the carrier that fails the link may be the primary carrier or the secondary carrier.
  • the base station and the terminal device arbitrarily stipulate the carrier identification information of the primary carrier
  • the wireless link failure information does not include the carrier identification information of the primary carrier, and thus, the link quality measurement report received by the base station does not exist.
  • the base station may determine, according to the agreement, the link quality measurement report as a link measurement report on the primary carrier.
  • the radio link failure information further includes carrier identification information of the primary carrier.
  • the radio link failure information may include: a link quality measurement report on all service carriers of the cell where the terminal device is located, and carrier identification information of all service carriers, and neighboring cells of the cell in which the cell is located when a link failure occurs. Link quality measurement report.
  • the terminal device may further include a storage unit (not shown) for storing the carrier identification information and the radio link failure information.
  • Fig. 7 is a block diagram showing the configuration of a base station according to a fifth embodiment of the present invention.
  • the base station includes: a second sending unit 701 and a second receiving unit 702;
  • the second sending unit 701 is configured to send, to the terminal device, a request that the terminal device reports the wireless link failure information
  • the second receiving unit 702 is configured to receive radio link failure information returned by the terminal device according to the request, and enable the base station to perform radio link failure reason analysis according to the reported radio link failure information;
  • the radio link failure information includes :
  • the link quality measurement report on the serving carrier of the cell where the terminal device is located the carrier identification information of the secondary carrier in the serving carrier, and the link quality measurement report of the neighboring cell of the cell in which the cell is located.
  • the base station may be a base station that is reestablished with the terminal device link.
  • the base station and the terminal device when the base station and the terminal device have previously agreed not to report the primary carrier identification information, when the link quality measurement report received by the base station does not have corresponding carrier identification information, the base station may determine the link quality according to the agreement.
  • the measurement report reports the link measurement on the primary carrier.
  • the radio link failure information may further include carrier identification information of the primary carrier.
  • the radio link failure information may include: a link quality measurement report on all service carriers of the cell where the terminal device is located, and carrier identification information of all service carriers in the cell, and neighboring cells in the cell when the link fails. The link quality measurement report of the cell.
  • the base station can be used as a network side entity to analyze the cause of the failure of the radio link.
  • other entities on the network side can also analyze the cause of the failure of the radio link.
  • the base station may further include: a third sending unit 703, configured to send the radio link failure information to other entities on the network side, so that other entities on the network side use the radio link failure information to analyze the cause of the radio link failure.
  • the network side may send a request to the terminal device to indicate that the terminal device reports the radio link failure information; the terminal device reports the radio link failure information to the network side according to the request, so that the network side
  • the wireless link failure information analyzes the cause of the link failure, avoids the occurrence of misjudgment, and finally optimizes the network and solves the problem.
  • the embodiment of the present invention further provides a computer readable program, wherein when the program is executed in a terminal device, the program causes the computer to execute the report radio link failure information as described in Embodiment 1 in the terminal device.
  • 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 method for reporting wireless link failure information as described in Embodiment 1 in the terminal device.
  • the embodiment of the present invention further provides a computer readable program, wherein the program causes a computer to execute a method for reporting radio link failure information as described in Embodiment 2 in the base station when the program is executed in a base station .
  • the embodiment of the present invention further provides a storage medium storing a computer readable program, wherein the computer readable program causes a computer to perform a method of reporting wireless link failure information as described in Embodiment 2 in a base station.
  • the above apparatus and method of the present invention may be implemented by hardware or 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, or the like.

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  • Mobile Radio Communication Systems (AREA)

Abstract

一种报告无线链路失败信息的方法、终端设备和基站。该方法包括：终端设备接收网络侧发送的上报无线链路失败信息的请求；该终端设备根据该请求将无线链路失败信息上报给该网络侧，使该网络侧根据该终端设备上报的该无线链路失败信息进行无线链路失败原因的分析；该无线链路失败信息包括：发生链路失败时，所述终端设备所在小区的服务载波上的链路质量测量报告和所述服务载波中的辅载波的载波标识信息、以及所在小区的相邻小区的链路质量测量报告。通过本发明实施例，网络侧可获得包括载波标识信息在内的测量报告，从而可避免发生误判，有效地进行无线链路失败原因的分析。

Description

报告无线链路失败信息的方法、 终端设备和基站 技术领域
本发明涉及一种通信领域， 特别涉及一种报告无线链路失败信息的 方法、 终端设备和基站。 背景技术
无线链路失败 （RLF: Radio Link Failure) 是终端设备的一种瞬时状 态。 在长期演进（LTE: Long Term Evaluation)系统中， 触发无线链路失 败的事件可包括： 终端设备在一段时间内检测到上行链路失同步、 介质 访问控制 （MAC: Media Access Control) 层的随机接入过程出现问题或 者在无线链路控制 （RLC: Radio Link Control)层达到最大重传次数。 若 发生任意上述事件， 则认为发生了链路失败。 无线链路失败后， 终端设 备要么进入空闲状态， 只能监听基站下行信息， 不能进行上行数据传输， 要么就要发起链路重建过程， 与网络侧重新建立链路。
无线链路失败， 即触发无线链路失败事件的具体原因较多， 以下举 例说明。
例如， 对于切换过程， 在正常情况下， 终端设备需要在与源基站之 间的链路情况发生恶化、 与目标基站之间的链路情况趋于较好的某个合 适时间点实施切换， 既要避免切换的太晚， 以免在源基站处的链路质量 太差而发生无线链路失败， 又要避免切换的太早， 以免在目标基站处的 链路质量不足够好， 以至于切换过去之后， 该终端设备发现目标基站处 的链路不够好而在目标基站处发生无线链路失败， 这时， 该终端设备还 要切换回源基站或切换到另外一个基站。
再例如， 在运营商进行布网时， 若对某个区域覆盖不够完整， 则将 出现一个覆盖 "盲点"。当终端设备从一个覆盖较好的区域移动到盲点时， 在没有找到合适的切换基站之前， 有可能发生与源基站之间的无线链路 失败。 如该终端设备又移动到有覆盖的地方， 该终端设备需要与能够提 供覆盖的基站重建链路。
对无线链路失败原因的判定对优化无线网络非常重要。 通常在网络 侧进行无线链路失败原因分析， 当网络侧对无线链路失败原因进行分析 时， 需要终端设备通过空口上报无线链路失败的相关信息， 使网络侧利 用该相关信息分析无线链路失败的原因， 并采取相应的措施进行网络优化。
图 1 是在单载波系统中终端设备向网络侧上报无线链路失败信息的 流程图。如图 1所示， 网络侧，通常是基站 eNB向该用户设备（UE: User Equipment) 发送上报在发生无线链路失败时的最近的链路测量报告的请 求， 可通过 UE Information Request消息发送该请求； 该用户设备 UE接 收到该请求后，通过 UE Information Response消息将该测量报告上报该基 站； 其中， 该测量报告中可包括以下信息：
1 ) 发生链路失败的服务小区之间的链路质量； 2 ) 发生链路失败时 的相邻小区的链路质量。
网络侧获得该测量报告后对失败原因进行分析， 若在发生链路失败 时， 不但与当时的服务小区之间的链路质量较差， 而且与周围相邻小区 之间的链路质量也较差， 则判定链路失败有可能由覆盖盲点引起； 若在 发生链路失败时， 与服务小区的链路质量较差， 而与某些相邻小区之间 的链路质量还较好， 则判定链路失败有可能由切换过迟引起。 这样， 网 络侧就可以根据上述原因采取相应的优化措施。
在进行优化时， 若网络侧的分析结果为： 引起无线链路失败的原因 是终端设备切换过早或过迟， 则确定可能是在切换过程中判定切换时间 点的参数设置存在问题， 这样根据分析结果对该参数进行调整。 例如， 若终端设备与源基站的链路质量低于预设的阈值 A而与目标基站之间的 链路质量高于预设的阈值 B , 且这种状态要持续预设时间 T之后， 则通 过该终端设备的报告， 该基站通知该终端设备进行切换。 若阈值 A设置 过低， 则将出现切换过迟的现象， 反之则会出现切换过早的现象。 若阈 值 B设置过高， 则将出现过迟现象， 反之会出现过早现象。 而时间 T也 会出现同样问题， 若过长则出现切换过迟现象， 若过短则出现切换过早 现象。 这样， 需要根据分析结果对参数 A、 B或 T进行调整。
例如， 若网络侧的分析结果为： 判定无线链路失败的原因是网络出 现覆盖盲点， 则采取增加基站、 增加基站发射功率、 或调整天线方向角 等措施来保证覆盖的完整性。 图 2是载波聚合示意图。 在载波聚合 （CA: Carrier Aggregation) 系 统中， 如图 2所示， 终端可以工作在最多 100MHz的带宽内， 可以聚合 5 个载波， 即终端设备在同一小区内可以同时有 5个服务载波。在多个载波 中， 只能有一个载波为主载波， 其余为辅载波。 一般情况下， 选择信道质 量较好的载波作为主载波。 因此， 对于每个终端设备来讲， 主载波是可 以改变的。 若在同一个小区内需要改变主载波， 则需要通过切换过程来 完成。 因此， 在多载波系统下， 链路切换的情况较单载波更为复杂。
例如， 对某个终端来讲， 在同一个小区内有多个服务载波， 即一个 主载波以及一个或多个辅载波为终端设备提供服务， 这样在每个载波上 均有可能发生无线链路失败。 此外， 除了不同小区之间的切换外， 在同 一小区内， 主载波发生改变也需要进行切换。 在这些切换过程中， 同样 存在切换过迟或过早的问题。 同样地， 多载波系统也会存在覆盖盲点的 问题。
因此， 发明人在实现本发明的过程中发现现有技术的缺陷在于： 在 多载波系统中， 若仍然采用图 1 所示的方法上报链路失败信息， 则在网 络侧利用获得上报的相关信息对失败原因进行分析时， 可能导致网络侧 判定失误， 从而不能采取相应的措施进行网络优化；
例如， 在终端设备的主载波改变发生切换时， 若切换过迟， 该终端 设备在源主载波处发生链路失败后又在目标主载波 （原来的辅载波） 进 行链路重建。 由于在发生主载波改变时， 该终端设备位置可能不在小区 的边缘位置， 此时与相邻小区的信道质量也较差， 若该终端设备只报告 在发生链路失败时源主载波上的链路测量质量和相邻小区的链路测量质 量， 则网络侧认为该终端设备在一个载波上发生链路失败之后又在另外 一个载波上进行链路重建， 同时该终端设备与源主载波上的链路质量和 相邻小区的链路质量均较差， 则网络侧判定无线链路失败可能由覆盖盲 点引起， 显然该判定错误。
另外， 在现有技术中也没有提供解决上述问题的办法。
下面列出了对于理解本发明和常规技术有益的文献， 通过引用将它 们并入本文中， 如同在本文中完全阐明了一样。
1、 3GPP TS 36.321 V9.3.0(2010-06) Medium Access Control(MAC) Protocol specification(Release 9).
2、 3GPP TS 36.331 V9.4.0(2010-09) Radio Resource Control (RRC) Protocol specification (Release 9). 发明内容
本发明实施例的目的在于提供一种报告无线链路失败信息的方法、 终端设备和基站， 该终端设备可将包括发生链路失败时， 终端设备所在 小区的服务载波上的链路质量测量报告和所述服务载波中的辅载波的载 波标识信息、 以及所在小区的相邻小区的链路质量测量报告在内的无线 链路失败信息上报给网络侧， 以使网络侧利用上报的信息进行无线链路 失败原因的分析， 避免发生误判， 并解决了现有技术中存在的问题。
根据本发明实施例的一个方面提供了一种报告无线链路失败信息的 方法， 该方法包括： 终端设备接收网络侧发送的上报无线链路失败信息 的请求； 该终端设备根据该请求将无线链路失败信息上报给该网络侧， 使该网络侧根据上报的该无线链路失败信息进行无线链路失败原因的分 析； 其中， 该无线链路失败信息包括：
发生链路失败时， 所述终端设备所在小区的服务载波上的链路质量 测量报告和所述服务载波中的辅载波的载波标识信息、 以及所在小区的 相邻小区的链路质量测量报告。
根据本发明实施例的另一个方面提供了一种报告无线链路失败信息 的方法， 该方法包括： 向终端设备发送指示该终端设备上报无线链路失 败信息的请求； 接收该终端设备根据该请求返回的无线链路失败信息， 使网络侧根据上报的该无线链路失败信息进行无线链路失败原因的分 析； 其中， 该无线链路失败信息包括：
发生链路失败时， 所述终端设备所在小区的服务载波上的链路质量 测量报告和所述服务载波中的辅载波的载波标识信息、 以及所在小区的 相邻小区的链路质量测量报告。
根据本发明实施例的另一个方面提供了一种终端设备， 该终端设备 包括：
第一接收单元， 用于接收网络侧发送的指示终端设备上报无线链路失 败信息的请求；
第一发送单元， 用于根据该第一接收单元接收的该请求将无线链路 失败信息上报给该网络侧， 使该网络侧根据上报的该无线链路失败信息 进行无线链路失败原因的分析；
其中， 该无线链路失败信息包括： 发生链路失败时， 所述终端设备 所在小区的服务载波上的链路质量测量报告和所述服务载波中的辅载波 的载波标识信息、 以及所在小区的相邻小区的链路质量测量报告。
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： 第二发送单元， 用于向终端设备发送指示该终端设备上报无线链路 失败信息的请求；
第二接收单元， 用于接收该终端设备根据该请求返回的无线链路失 败信息， 使该基站根据上报的该无线链路失败信息进行无线链路失败原 因的分析； 其中， 该无线链路失败信息包括：
发生链路失败时， 所述终端设备所在小区的服务载波上的链路质量 测量报告和所述服务载波中的辅载波的载波标识信息、 以及所在小区的 相邻小区的链路质量测量报告。
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 当在终端设备中执行该程序时， 该程序使得计算机在该终端设备中执行 上述报告无线链路失败信息的方法。
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终端设备中执行上述 报告无线链路失败信息的方法。
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 当在基站中执行该程序时， 该程序使得计算机在该基站中执行上述报告 无线链路失败信息的方法。
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上述报告 无线链路失败信息的方法。
本发明实施例的有益效果在于： 在多载波系统中， 该终端设备可根 据网络侧发送的请求， 将包括发生链路失败时， 所述终端设备所在小区 的服务载波上的链路质量测量报告和所述服务载波中的辅载波的载波标 识信息、 以及所在小区的相邻小区的链路质量测量报告。 在内的无线链 路失败信息上报给网络侧， 以使网络侧获得完整的链路质量测量报告， 利用上报的链路质量测量报告进行无线链路失败原因的分析， 避免发生 误判， 并解决了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
图 1 是在单载波系统中终端设备向网络侧上报无线链路失败信息的 流程图；
图 2是载波聚合系统中载波聚合示意图；
图 3是本发明实施例 1的报告无线链路失败信息的流程图； 图 4是本发明实施例 2的报告无线链路失败信息的流程图； 图 5是本发明实施例 3的报告无线链路失败信息的流程图； 图 6是本发明实施例 4的终端设备构成示意图；
图 7是本发明实施例 5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增强的长期演进
(LTE-A: Long Term Evaluation Advanced) 系统中的多载波系统为例进 行介绍， 但是应该理解， 本发明不限于该系统， 可用于任何涉及无线链 路失败发生位置不唯一的系统。
图 3是本发明实施例 1的报告无线链路失败信息的方法流程图。 如 图 3所示， 该方法包括：
步骤 301， 终端设备接收网络侧发送的上报无线链路失败信息的请求; 步骤 302， 该终端设备根据请求将无线链路失败信息上报给网络侧， 使网络侧根据上报的无线链路失败信息进行无线链路失败原因的分析； 其中， 该无线链路失败信息包括：
发生链路失败时， 该终端设备所在小区的服务载波上的链路质量测 量报告和该服务载波中的辅载波的载波标识信息、 以及所在小区的相邻 小区的链路质量测量报告。
在本实施例中，在步骤 301中，网络侧，如基站可采用 UE Information Request消息来发送该请求；在步骤 302中，该终端设备接收到该请求后， 通过 UE Information Response消息返回无线链路失败信息。但不限于上述 消息， 也可采用其他任何的消息来发送请求、 以及返回无线链路失败信息。
在本实施例中， 发生链路失败时， 该终端设备所在小区的服务载波 上的链路质量测量报告包括： 发生无线链路失败的服务载波上的链路质 量测量报告、 以及发生链路失败时小区内的其他服务载波上的链路质量 测量报告。 其中， 发生链路失败的载波可以为主载波， 也可以为辅载波。
在本实施例中， 在基站和终端设备预先约定省略主载波的载波标识 信息时， 上述无线链路失败信息不包括主载波的载波标识信息， 这样， 当基站接收到的链路质量测量报告没有对应的载波标识信息， 则基站可 根据约定确定该链路质量测量报告为主载波上的链路测量报告。
在本实施例中， 在基站与终端设备之间未作约定的情况下， 该无线 链路失败信息还包括主载波的载波标识信息。 这样， 该无线链路失败信 息可包括： 发生链路失败时， 该终端设备所在小区的所有服务载波上的 链路质量测量报告和所有服务载波的载波标识信息、 以及所在小区的相 邻小区的链路质量测量报告。 由上述实施例可知， 在多载波系统中， 通过上述方法可使网络侧获 得完整的无线链路失败信息， 并利用该链路质量测量报告进行无线链路 失败原因的分析， 从而避免发生误判， 解决了现有技术中存在的问题。
图 4是本发明实施例 2的报告无线链路失败信息的方法流程图。 如 图 4所示， 该方法包括：
步骤 401，基站向终端设备发送指示该终端设备上报无线链路失败信 息的请求；
步骤 402，接收该终端设备根据请求返回的无线链路失败信息，使网 络侧根据上报的该无线链路失败信息进行无线链路失败原因的分析； 其 中， 该无线链路失败信息包括：
发生链路失败时， 该终端设备所在小区的服务载波上的链路质量测 量报告和该服务载波中的辅载波的载波标识信息、 以及所在小区的相邻 小区的链路质量测量报告。
在本实施例中， 在步骤 401中， 基站可采用 UE Information Request 消息来发送该请求； 在步骤 402 中， 该终端设备采用 UE Information Response 消息返回无线链路失败信息。 但不限于上述消息， 也可采用其 他任何的消息来发送请求、 以及返回该无线链路失败信息。
在本实施例中， 该基站可为与该终端设备链路重建的基站。
在本实施例中， 在基站和终端设备预先约定不上报主载波标识信息 的情况下， 当基站接收到的链路质量测量报告没有对应的载波标识信息， 则基站可根据约定确定该链路质量测量报告为主载波上的链路测量报告。
在本实施例中， 在基站与终端设备之间未作约定的情况下， 该无线 链路失败信息还可包括主载波的载波标识信息。 这样， 该无线链路失败 信息可包括： 发生链路失败时， 该终端设备所在小区的所有服务载波上 的链路质量测量报告和小区内所有服务载波的载波标识信息、 以及所在 小区的相邻小区的链路质量测量报告。
在本实施例中， 当该基站接收到该无线链路失败信息时， 该基站可 直接根据该无线链路失败信息对无线链路失败原因进行分析。 此外， 该 基站还可将该链路质量结果发送到网络侧其他功能实体， 由其他功能实 体根据该无线链路失败信息对无线链路失败原因进行分析。 这样， 该方法还可包括： 该基站将该无线链路失败信息向网络侧的 其他功能实体发送， 使该网络侧的其他功能实体根据上报的该无线链路 失败信息进行无线链路失败原因的分析。
由上述实施例可知， 在多载波系统中， 网络侧可获得完整的无线链 路失败信息， 并利用该链路质量测量报告进行无线链路失败原因的分析， 从而避免发生误判， 解决了现有技术中存在的问题。
在上述实施例中， 该终端设备可实时检测是否发生链路失败， 且网 络侧对于该终端设备发生的链路失败也是可知的， 在网络侧获知该终端 设备发生链路失败后， 网络侧可向该终端设备发送指示该终端设备上报 无线链路失败信息的请求； 该终端设备根据该请求将上述无线链路失败 信息上报给网络侧， 使得网络侧根据该无线链路失败信息进行链路失败 原因的分析， 最终实现对网络的优化。
以下以多载波系统中， 基站指示终端设备上报无线链路失败信息为 例对报告无线链路失败信息的方法进行详细说明。
图 5是本发明实施例 3的报告无线链路失败信息的方法流程图。 如 图 5所示， 该方法包括：
步骤 501，基站判断是否需要终端设备上报无线链路失败信息；若判 断结果为是， 则执行步骤 502; 否则继续进行判断；
其中， 该基站可根据网络侧实体发送的指令来判断是否需要终端设 备上报无线链路失败信息， 即若接收到网络侧实体发送的指令， 则可确 定需要终端设备上报无线链路失败信息， 否则确定不需要终端设备上报 无线链路失败信息； 该网络侧实体可为该基站本身、 或者为发生无线链 路失败的基站、 或者为网络侧其他功能实体， 如网络管理实体。
步骤 502，在步骤 501中，若基站确定需要终端设备上报无线链路失 败信息， 则该基站向该终端设备发送指示该终端设备上报无线链路失败 信息的请求消息；
其中， 该请求消息可采用 UE Information Request消息。
步骤 503， 该终端设备接收该请求消息；
步骤 504，该终端设备判断是否有对应的无线链路失败信息；若判断 结果为是， 则执行步骤 505， 否则执行步骤 506; 其中， 该终端设备可实时检测是否发生链路失败， 且网络侧对于该 终端设备发生的链路失败也是可知的。 但是， 由于发生链路失败时， 由 于终端设备可能在发生链路失败之前的最后一次测量与监测到链路失败 之间的时间过长，就认为这次测量对于链路失败已经无效，也就没有相应 的链路测量质量结果。 所以， 即便发生了无线链路失败， 但终端设备处 也可能不存在相应的无线链路失败信息。
步骤 505，在步骤 504中判断结果为是， 则该终端设备向该基站返回 响应消息， 该响应消息中包括无线链路失败信息；
其中， 该终端设备的响应消息可采用 UE Information Response消息； 在基站和终端设备预先约定省略主载波的载波标识信息时， 该无线 链路失败信息可包括： 发生链路失败时， 该终端设备所在小区的所有服 务载波上的链路质量测量报告和所有服务载波中的辅载波的载波标识信 息、 以及所在小区的相邻小区的链路质量测量报告；
在基站与终端设备之间未作约定的情况下， 该无线链路失败信息还 可包括主载波的载波标识信息。 这样， 该无线链路失败信息可包括： 发 生链路失败时， 该终端设备所在小区的所有服务载波上的链路质量测量 报告和所有服务载波对应的载波标识信息、 以及所在小区的相邻小区的 链路质量测量报告。
步骤 506， 在步骤 504中， 若判断结果为否， 则该终端设备不向该基 站返回响应消息， 或者返回该响应消息， 但该响应消息中的内容为空。
步骤 507，在步骤 505之后，该基站判断是否在预设时间内接收到该 响应消息； 若判断结果为是， 则执行步骤 508， 否则执行步骤 509;
步骤 508， 在步骤 507中， 若判断结果为是， 则该基站将根据该无线 链路失败信息进行无线链路失败原因的分析， 以进行网络优化。
步骤 509， 在步骤 507中， 若判断结果为否， 则确定接收响应消息失 败， 从而过程结束。
在上述实施例中， 将该基站作为执行无线链路失败原因分析的网络 侧实体， 不仅如此， 还可采用其他网络侧实体， 如网络管理实体来执行 上述分析。 在这种情况下， 如图 5所示， 还可包括：
步骤 510， 在步骤 507中， 若判断结果为是， 则该基站将该无线链路 失败信息向其他网络侧实体发送， 使得该其他网络侧实体利用该无线链 路失败信息进行分析， 以优化网络。
由上述实施例可知， 网络侧可向该终端设备发送指示该终端设备上 报无线链路失败信息的请求； 该终端设备根据该请求将上述无线链路失 败信息上报给网络侧， 使得网络侧获得包括载波标识、 以及发生链路失 败时该终端设备所在小区的所有载波上的链路测量报告、 以及相邻小区 的链路测量报告在内的无线链路失败信息， 并根据该无线链路失败信息 进行链路失败原因的分析， 避免了误判的情况发生， 最终实现对网络的 优化， 解决了现有技术中存在的问题。
在多载波系统中， 当终端设备在源主载波处发生链路失败后又在另 外一个载波进行链路重建。 在链路重建之后， 若终端设备根据网络侧请 求上报包括发生链路失败时所在小区的所有服务载波的链路测量质量和 相应的载波标识信息、 以及相邻小区的链路测量质量在内的无线链路失 败信息， 则网络侧可根据该终端设备上报的无线链路失败信息可以判断 出链路失败的原因：
例如， 若该终端设备与在发生链路失败时所在小区的所有服务载波 的链路测量质量均较差， 与相邻小区的链路测量质量也均较差， 则网络 侧可确定链路失败就可能由覆盖盲点引起。
若该终端设备与在发生链路失败时所在小区的所有服务载波的链路 测量质量均较差， 而与某个相邻小区的链路测量质量较好， 同时切换后 的主载波在相邻小区， 贝 I」网络侧确定链路失败可能由小区间切换太迟引起。
若在源主载波处的链路测量质量较差， 而与某个辅载波的链路测量 质量较好， 同时切换后的主载波还在原来的小区， 那么无论相邻小区的 链路测量质量是否较好， 链路失败极有可能由小区内切换 （改变主载波） 太迟引起。
因此， 网络侧根据终端设备上报的无线链路失败信息进行链路失败 原因的分析， 避免了误判的情况发生， 最终实现对网络的优化， 解决了 现有技术中存在的问题。
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： ROM、 RAM, 磁盘、 光盘等。
本发明实施例还提供了一种基站和终端设备， 如下面的实施例所述。 由于该基站和终端设备解决问题的原理与上述基于基站和终端设备的参 数获取方法相似， 因此该基站和终端设备的实施可以参见方法的实施， 重复之处不再赘述。
图 6是本发明实施例 4的终端设备构成示意图。 如图 6所示， 该终 端设备包括第一接收单元 601和第一发送单元 602;
第一接收单元 601， 用于接收网络侧发送的指示终端设备上报无线链 路失败信息的请求；
第一发送单元 602，用于根据第一接收单元 601接收的该请求将无线 链路失败信息上报给该网络侧， 使该网络侧根据上报的无线链路失败信 息进行无线链路失败原因的分析； 该无线链路失败信息包括：
发生链路失败时， 该终端设备所在小区的服务载波上的链路质量测 量报告和该服务载波中的辅载波的载波标识信息、 以及所在小区的相邻 小区的链路质量测量报告。
在本实施例中， 发生链路失败时， 该终端设备所在小区的服务载波 上的链路质量测量报告包括： 发生无线链路失败的服务载波上的链路质 量测量报告、 以及发生链路失败时小区内的其他服务载波上的链路质量 测量报告。 其中， 发生链路失败的载波可以为主载波， 也可以为辅载波。
在本实施例中， 在基站和终端设备预先约定省略主载波的载波标识 信息时， 上述无线链路失败信息不包括主载波的载波标识信息， 这样， 当基站接收到的链路质量测量报告没有对应的载波标识信息， 则基站可 根据约定确定该链路质量测量报告为主载波上的链路测量报告。
在本实施例中， 在基站与终端设备之间未作约定的情况下， 该无线 链路失败信息还包括主载波的载波标识信息。 这样， 该无线链路失败信 息可包括： 发生链路失败时， 该终端设备所在小区的所有服务载波上的 链路质量测量报告和所有服务载波的载波标识信息、 以及所在小区的相 邻小区的链路质量测量报告。 此外， 该终端设备还可包括存储单元（未示出）， 用于储存上述载波 标识信息和无线链路失败信息。
图 7是本发明实施例 5的基站构成示意图。 如图 7所示， 该基站包 括： 第二发送单元 701和第二接收单元 702; 其中，
第二发送单元 701，用于向终端设备发送指示该终端设备上报无线链 路失败信息的请求；
第二接收单元 702，用于接收该终端设备根据该请求返回的无线链路 失败信息， 使该基站根据上报的无线链路失败信息进行无线链路失败原 因的分析； 该无线链路失败信息包括：
发生链路失败时， 该终端设备所在小区的服务载波上的链路质量测 量报告和该服务载波中的辅载波的载波标识信息、 以及所在小区的相邻 小区的链路质量测量报告。
在本实施例中， 该基站可为与该终端设备链路重建的基站。
在本实施例中， 在基站和终端设备预先约定不上报主载波标识信息 的情况下， 当基站接收到的链路质量测量报告没有对应的载波标识信息， 则基站可根据约定确定该链路质量测量报告为主载波上的链路测量报告。
在本实施例中， 在基站与终端设备之间未作约定的情况下， 该无线 链路失败信息还可包括主载波的载波标识信息。 这样， 该无线链路失败 信息可包括： 发生链路失败时， 该终端设备所在小区的所有服务载波上 的链路质量测量报告和小区内所有服务载波的载波标识信息、 以及所在 小区的相邻小区的链路质量测量报告。
此外， 该基站可作为网络侧实体进行无线链路失败原因的分析， 此 夕卜， 网络侧其他实体也可进行无线链路失败原因的分析。 这样， 该基站 还可包括： 第三发送单元 703， 用于向网络侧其他实体发送该无线链路失 败信息， 使得网络侧其他实体利用该无线链路失败信息分析无线链路失 败原因。
由上述实施例可知， 网络侧可向该终端设备发送指示该终端设备上 报无线链路失败信息的请求； 该终端设备根据该请求将上述无线链路失 败信息上报给网络侧， 使网络侧根据该无线链路失败信息进行链路失败 原因的分析， 避免了误判的情况发生， 最终实现对网络的优化， 解决了 现有技术中存在的问题。
本发明实施例还提供一种计算机可读程序， 其中当在终端设备中执 行所述程序时， 所述程序使得计算机在所述终端设备中执行如实施例 1 所述的报告无线链路失败信息的方法。
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 所述计算机可读程序使得计算机在终端设备中执行如实施例 1 所述的报 告无线链路失败信息的方法。
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实施例 2 所述的报 告无线链路失败信息的方法。
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 所述计算机可读程序使得计算机在基站中执行如实施例 2 所述的报告无 线链路失败信息的方法。
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、 一种报告无线链路失败信息的方法， 包括：
终端设备接收网络侧发送的上报无线链路失败信息的请求； 所述终端设备根据所述请求将无线链路失败信息上报给所述网络 侧， 使所述网络侧根据所述终端设备上报的所述无线链路失败信息进行 无线链路失败原因的分析； 所述无线链路失败信息包括：
发生链路失败时， 终端设备所在小区的服务载波上的链路质量测量 报告和所述服务载波中的辅载波的载波标识信息、 以及所在小区的相邻 小区的链路质量测量报告。
2、 根据权利要求 1所述的方法， 其中， 所述无线链路失败信息还包 括所述服务载波中的主载波的标识信息。
3、 一种报告无线链路失败信息的方法， 包括：
基站向终端设备发送指示所述终端设备上报无线链路失败信息的请求； 接收所述终端设备根据所述请求返回的无线链路失败信息， 使网络 侧根据上报的所述无线链路失败信息进行无线链路失败原因的分析； 其 中， 所述无线链路失败信息包括：
发生链路失败时， 所述终端设备所在小区的服务载波上的链路质量 测量报告和所述服务载波中的辅载波的载波标识信息、 以及所在小区的 相邻小区的链路质量测量报告。
4、 根据权利要求 3所述的方法， 其中， 所述无线链路失败信息还包 括所述服务载波中的主载波的标识信息。
5、 根据权利要求 3或 4所述的方法， 其中， 该方法还包括： 所述基站将所述无线链路失败信息向网络侧其他功能实体发送， 使 所述网络侧其他功能实体根据上报的所述无线链路失败信息进行无线链 路失败原因的分析。
6、 一种终端设备， 包括：
第一接收单元， 用于接收网络侧发送的指示终端设备上报无线链路失 败信息的请求；
第一发送单元， 用于根据所述第一接收单元接收的所述请求将无线 链路失败信息上报给所述网络侧， 使所述网络侧根据上报的所述无线链 路失败信息进行无线链路失败原因的分析； 所述无线链路失败信息包括: 发生链路失败时， 所述终端设备所在小区的服务载波上的链路质量 测量报告和所述服务载波中的辅载波的载波标识信息、 以及所在小区的 相邻小区的链路质量测量报告。
7、 根据权利要求 6所述的终端设备， 其中， 所述无线链路失败信息 还包括所述服务载波中的主载波的标识信息。
8、 一种基站， 包括：
第二发送单元， 用于向终端设备发送指示所述终端设备上报无线链 路失败信息的请求；
第二接收单元， 用于接收所述终端设备根据所述请求返回的无线链 路失败信息， 使所述基站根据上报的所述无线链路失败信息进行无线链 路失败原因的分析； 所述无线链路失败信息包括：
发生链路失败时， 所述终端设备所在小区的服务载波上的链路质量 测量报告和所述服务载波中的辅载波的载波标识信息、 以及所在小区的 相邻小区的链路质量测量报告。
9、 根据权利要求 8所述的基站， 其中， 所述无线链路失败信息还包 括所述服务载波中的主载波的标识信息。
10、 根据权利要求 8或 9所述的基站， 其中， 所述基站还包括： 第 三发送单元， 用于将所述无线链路失败信息向网络侧其他功能实体发送， 使所述网络侧其他功能实体根据上报的所述无线链路失败信息进行无线 链路失败原因的分析。
11、 一种计算机可读程序， 其中当在终端设备中执行所述程序时， 所述程序使得计算机在所述终端设备中执行如权利要求 1或 2所述的报 告无线链路失败信息的方法。
12、 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 程序使得计算机在终端设备中执行如权利要求 1或 2所述的报告无线链 路失败信息的方法。
13、 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 3或 4或 5所述的报告无 线链路失败信息的方法。
14、 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 3或 4或 5所述的报告无线链 路失败信息的方法。
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