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WO2015017975A1 - Procédé et dispositif d'envoi et de réception d'informations d'indication - Google Patents

Procédé et dispositif d'envoi et de réception d'informations d'indication Download PDF

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Publication number
WO2015017975A1
WO2015017975A1 PCT/CN2013/080900 CN2013080900W WO2015017975A1 WO 2015017975 A1 WO2015017975 A1 WO 2015017975A1 CN 2013080900 W CN2013080900 W CN 2013080900W WO 2015017975 A1 WO2015017975 A1 WO 2015017975A1
Authority
WO
WIPO (PCT)
Prior art keywords
base station
cell
indication information
handover
failure
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/CN2013/080900
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English (en)
Chinese (zh)
Inventor
李秉肇
陈燕燕
支玉亮
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Huawei Technologies Co Ltd
Original Assignee
Huawei Technologies Co Ltd
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 Huawei Technologies Co Ltd filed Critical Huawei Technologies Co Ltd
Priority to PCT/CN2013/080900 priority Critical patent/WO2015017975A1/fr
Priority to CN201380001997.6A priority patent/CN105265006B/zh
Priority to CN201910264820.4A priority patent/CN110149731B/zh
Publication of WO2015017975A1 publication Critical patent/WO2015017975A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • 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 embodiments of the present invention relate to the field of communications technologies, and in particular, to a method and an apparatus for transmitting and receiving indication information. Background technique
  • the Chiba phenomenon is a network access failure problem discovered by operators.
  • the essence of the problem is that there is an imbalance between the uplink and downlink signals in the cell coverage.
  • the specific scenarios are as follows: For two base stations deployed on both sides of the river, if the user equipment ( User Equipment, hereinafter referred to as: UE) On the left bank of the river, although the base station on the right side is relatively far away, due to the reflection of the river surface, the signal strength of the signal from the right base station to the UE is still relatively strong, and the UE is based on the downlink signal for cell reselection. The signal strength is chosen. Therefore, the UE will still select the cell to which the right base station belongs when it performs cell reselection near the river bank.
  • User Equipment User Equipment
  • the UE initiates a service at this time, since the UE is far away from the right base station, the uplink signal sent by the UE cannot reach the right base station, so it will occur.
  • the Random Access Channel (RACH) access failed.
  • T300 There is a timer in the UE.
  • the UE starts the timer. Before the timer expires, the UE will always try the RACH access.
  • the timer expires, if the UE still has no access, the UE will Trigger to stop access. If the UE re-initiates the access, the above access procedure will be repeated, but the UE will fail to enter.
  • a handover failure may also occur.
  • a solution in the prior art is that if a UE encounters a T300 timeout in a cell and the access fails, the UE will be disabled, thereby reselecting another cell to initiate a service.
  • the UE may have an access or handover failure.
  • the uplink load of a certain period of time is relatively heavy, and the UE may also cause access or handover failure.
  • the UE cannot distinguish between access or handover failure caused by some reason, so how to effectively identify the occurrence of the cell
  • the reason for the failure of access or handover is a problem that needs to be solved. Summary of the invention
  • the embodiment of the invention provides a method and a device for transmitting and receiving indication information, which can realize that the network side can learn that the access or connection establishment fails in the coverage area, and is controlled by the base station.
  • the UE provides conditions for the behavior after the access or connection establishment fails.
  • the embodiment of the present invention provides a method for sending indication information, including: receiving, by a first base station, a radio link failure RLF report, where the RLF report is sent by a user equipment UE or forwarded by a third base station, where The third base station is a base station that successfully establishes a radio resource control RRC connection with the UE after the UE fails to handover;
  • the first base station compares the RLF report with a preset feature
  • the first base station sends indication information to the second base station, where the second base station learns, according to the indication information, a cell in the second base station.
  • the first base station is a source cell base station in which the handover failure occurs in the UE
  • the second base station is a target handover cell base station in which the UE fails to perform the handover failure.
  • the RLF report includes at least an identifier of the target handover cell and a reason for the handover failure, where the preset feature is: the UE is switched. Failure, and the reason for the handover failure is that the random access channel RACH fails; or,
  • the RLF report includes at least the identifier of the target handover cell and the identifier of the re-establishment target cell, where the preset feature is: the identifier of the re-establishment target cell is the same as the identifier of the target handover cell; or
  • the RLF report includes at least: information about whether the re-establishment is successful, and the preset feature is: re-establishment failure; or
  • the RLF report includes: an identifier of the target handover cell and a channel measurement result of the target handover cell in which the handover failure occurs, the preset feature is: the handover failure of the UE occurs, and the target handover of the handover failure occurs.
  • the channel measurement result of the cell is higher than a predetermined threshold.
  • the indication information includes: the RLF report and/or indicating the second base station
  • the cell is the information of the uplink and downlink unbalanced cell
  • the first base station sending, by the first base station, indication information to the second base station, according to the second base station, according to the And the indicating that the access failure occurs in the cell of the second base station, the first base station sending the RLF report to the second base station, and/or indicating that the cell of the second base station is uplink and downlink
  • the information of the unbalanced cell is used by the second base station to learn, according to the RLF report and/or the information indicating that the cell of the second base station is an uplink and downlink unbalanced cell, the access occurring in the cell of the second base station. Failure situation.
  • the embodiment of the present invention provides a method for receiving indication information, including: receiving, by a second base station, indication information sent by a first base station, where the indication information is after the first base station receives a radio link failure RLF report, Comparing the RLF report with the preset feature, and when the determining that the RLF report is consistent with the preset feature, the RLF report received by the first base station is sent by the user equipment UE or The third base station is forwarded by the third base station, and the third base station is a base station that successfully establishes a radio resource control RRC connection with the UE after the UE fails to handover;
  • the second base station learns, according to the indication information, an access failure situation occurring in a cell of the second base station;
  • the first base station is a source cell base station in which the handover failure occurs in the UE
  • the second base station is a target handover cell base station in which the UE fails to perform the handover failure.
  • the RLF report includes at least an identifier of the target handover cell and a reason for the handover failure, where the preset feature is: the UE is switched. Failure, and the reason for the handover failure is that the random access channel RACH fails; or,
  • the RLF report includes at least the identifier of the target handover cell and the identifier of the re-establishment target cell, where the preset feature is: the identifier of the re-establishment target cell is the same as the identifier of the target handover cell; or
  • the RLF report includes at least: information about whether the re-establishment is successful, and the preset feature is: re-establishment failure; or
  • the RLF report includes: an identifier of the target handover cell and a channel measurement result of the target handover cell in which the handover failure occurs, the preset feature is: the handover failure of the UE occurs, and the target handover of the handover failure occurs.
  • the channel measurement result of the cell is higher than a predetermined threshold.
  • the indication information includes: The RLF reports and/or indicates that the cell of the second base station is information of an uplink and downlink unbalanced cell;
  • the second base station is configured to learn, according to the indication information, an access failure that occurs in a cell of the second base station, including:
  • the second base station learns, according to the RLF report and/or the information indicating that the cell of the second base station is an uplink and downlink unbalanced cell, the access failure situation occurring in the cell of the second base station.
  • the second base station reports, according to the RLF, and/or indicates a cell of the second base station
  • the method further includes:
  • the second base station determines that the first cell of the second base station is an uplink and downlink unbalanced cell, and then broadcasts a notification message. And the UE in the first cell is configured to prohibit the access to the first cell again after the access fails.
  • the embodiment of the present invention provides a method for sending indication information, including: receiving, by a first base station, indication information sent by a user equipment UE, where the indication information includes a cell identifier of a cell in which the UE connection establishment fails, the a base station is a base station to which a cell in which the radio resource control RRC connection is successfully established after the UE connection establishment fails; the first base station belongs to the second cell corresponding to the cell identifier according to the cell identifier The second base station forwards the indication information, where the second base station learns, according to the indication information, a connection establishment failure that occurs in the second cell.
  • the indication information further includes: a total number of times the UE connection establishment fails, or a number of consecutive connection establishment failures of the UE, or The specific reason why the UE connection establishment fails.
  • the method before the first base station receives the indication information sent by the user equipment UE, the method further includes:
  • the first base station receives the first indication message sent by the UE, where the first indication message is used to indicate that: the UE stores the indication information; The first base station requests the UE to send the indication information according to the first indication message.
  • the embodiment of the present invention provides a method for sending indication information, including: after the user equipment UE fails to establish a radio resource control RRC connection, the indication information is recorded, where the indication information includes a cell of the cell in which the UE connection establishment fails.
  • the UE After the UE establishes an RRC connection with the first base station, the UE sends the indication information to the first base station, where the first base station belongs to the second cell corresponding to the cell identifier according to the cell identifier.
  • the second base station forwards the indication information, and is used by the second base station to learn, according to the indication information, a connection establishment failure that occurs in the second cell.
  • the indication information further includes: a total number of times the UE connection establishment fails, or a number of consecutive connection establishment failures of the UE, or The specific reason why the UE connection establishment fails.
  • the method further includes:
  • the UE clears the recorded indication information.
  • the UE sends the indication to the first base station Before the information, it also includes:
  • the UE sends, by the UE, a first indication message to the first base station, where the first indication message is used by the first base station to learn that the UE stores the indication information, and requesting, according to the first indication message, the The UE sends the indication information to the first base station.
  • the embodiment of the present invention provides a method for receiving indication information, including: receiving, by a second base station, indication information that is forwarded by a first base station, where the indication information is sent by the user equipment UE to the first base station, where the indication is The information includes the cell identifier of the cell in which the UE connection establishment fails, and the first base station is a base station to which the cell that successfully establishes the radio resource control RRC connection after the UE connection establishment fails, the second base station Is a base station to which the cell corresponding to the cell identifier belongs;
  • the second base station learns, according to the indication information, a connection establishment failure that occurs in a cell corresponding to the cell identifier.
  • the method further includes:
  • the second base station determines, according to the indication information, that the cell corresponding to the cell identifier is an uplink and downlink unbalanced cell broadcast notification message, and is configured to notify the UE in the cell corresponding to the cell identifier to prohibit reconnection after the access failure. Enter the cell corresponding to the cell identifier.
  • an embodiment of the present invention provides a base station, including:
  • a receiving module configured to receive a radio link failure RLF report, where the RLF report is sent by the user equipment UE or forwarded by the third base station, where the third base station is after the UE handover fails and the UE Successfully establishing a radio resource control RRC connected base station;
  • a processing module configured to compare the RLF report received by the receiving module with a preset feature
  • a sending module configured to: when the processing module determines that the RLF report is consistent with the preset feature, send indication information to the second base station, where the second base station learns the second according to the indication information The access failure occurred in the cell of the base station;
  • the base station is a source cell base station in which the handover failure occurs in the UE, and the second base station is a target handover cell base station in which the UE fails to perform the handover failure.
  • the RLF report includes at least an identifier of the target handover cell and a reason for the handover failure, where the preset feature is: the UE is switched. Failure, and the reason for the handover failure is that the random access channel RACH fails; or,
  • the RLF report includes at least the identifier of the target handover cell and the identifier of the re-establishment target cell, where the preset feature is: the identifier of the re-establishment target cell is the same as the identifier of the target handover cell; or
  • the RLF report includes at least: information about whether the re-establishment is successful, and the preset feature is: re-establishment failure; or
  • the RLF report includes: an identifier of the target handover cell and a channel measurement result of the target handover cell in which the handover failure occurs, the preset feature is: the handover failure of the UE occurs, and the target handover of the handover failure occurs.
  • the channel measurement result of the cell is higher than a predetermined threshold.
  • the indication information includes:
  • the RLF reports and/or indicates that the cell of the second base station is information of an uplink and downlink unbalanced cell
  • the sending module is used to:
  • the cell of the second base station is the information of the uplink and downlink unbalanced cell, and the access failure situation occurring in the cell of the second base station is known.
  • an embodiment of the present invention provides a base station, including:
  • the receiving module is configured to receive the indication information sent by the first base station, where the indication information is that the first base station compares the RLF report with the preset feature after receiving the radio link failure RLF report, when determining the location
  • the RLF report received by the first base station is sent by the user equipment UE or forwarded by the third base station, and the third base station is in the office. Determining, after the UE handover fails, the base station that successfully establishes a radio resource control RRC connection with the UE;
  • a processing module configured to learn, according to the indication information received by the receiving module, an access failure situation occurring in a cell of the second base station;
  • the first base station is a source cell base station in which the handover failure occurs in the UE, and the base station is a target handover cell base station in which the UE fails to perform the handover failure.
  • the RLF report includes at least an identifier of the target handover cell and a reason for the handover failure, where the preset feature is: the UE is switched. Failure, and the reason for the handover failure is that the random access channel RACH fails; or,
  • the RLF report includes at least the identifier of the target handover cell and the identifier of the re-establishment target cell, where the preset feature is: the identifier of the re-establishment target cell is the same as the identifier of the target handover cell; or
  • the RLF report includes at least: information about whether the re-establishment is successful, and the preset feature is: re-establishment failure; or
  • the RLF report includes: an identifier of the target handover cell and a channel measurement result of the target handover cell in which the handover failure occurs, where the preset feature is: the UE fails to perform handover, And the channel measurement result of the target handover cell in which the handover failure occurs is higher than a predetermined threshold.
  • the indication information includes:
  • the RLF reports and/or indicates that the cell of the second base station is information of an uplink and downlink unbalanced cell
  • the processing module is used to:
  • the access failure situation occurring in the cell of the second base station is learned.
  • the processing module is specifically configured to report and/or indicate a cell of the second base station according to the RLF Determining, by the information of the uplink and downlink unbalanced cells, that the first cell of the second base station is an uplink and downlink unbalanced cell;
  • the base station further includes:
  • a sending module configured to: after the processing module determines that the first cell of the second base station is an uplink and downlink unbalanced cell, broadcast a notification message, to notify the UE in the first cell to prohibit reconnection after the access failure Entering the first cell.
  • the eighth aspect of the present invention provides a base station, including:
  • a receiving module configured to receive the indication information sent by the user equipment UE, where the indication information includes a cell identifier of a cell in which the UE connection establishment fails, and the base station successfully establishes a wireless after the UE connection establishment fails
  • the resource controls a base station to which the RRC connected cell belongs
  • a sending module configured to forward the indication information to the second base station to which the second cell corresponding to the cell identifier belongs according to the cell identifier that is included in the indication information that is received by the receiving module, where the indication information is used by the second base station Obtaining, according to the indication information, a connection establishment failure situation occurring in the second cell.
  • the indication information further includes: a total number of times the UE connection establishment fails, or a number of consecutive connection establishment failures of the UE, or The specific reason why the UE connection establishment fails.
  • the receiving module is further configured to: receive the finger sent by the UE Before the information is received, the first indication message sent by the UE is received, where the first indication message is used to indicate that: the UE stores the indication information;
  • the base station further includes:
  • the processing module is configured to request the UE to send the indication information according to the first indication message received by the receiving module.
  • a ninth aspect, the embodiment of the present invention provides a user equipment, including:
  • a recording module configured to: after the RRC connection establishment failure occurs, the indication information is included, where the indication information includes a cell identifier of a cell in which the user equipment UE connection establishment fails; and a sending module, configured to be used in the UE and the first base station After the RRC connection is established, the indication information recorded by the recording module is sent to the first base station, where the first base station belongs to the second base station to which the second cell corresponding to the cell identifier belongs according to the cell identifier. Forwarding the indication information, where the second base station learns, according to the indication information, a connection establishment failure that occurs in the second cell.
  • the indication information further includes: a total number of times that the UE connection establishment fails, or a number of consecutive connection establishment failures of the UE, or The specific reason why the UE connection establishment fails.
  • the method further includes:
  • a clearing module configured to: after the sending module sends the indication information to the first base station, clear the recorded indication information.
  • the transmitting module is further configured to: Before the first base station sends the indication information, the first base station sends a first indication message to the first base station, where the first indication message is used by the first base station to learn that the UE stores the indication information, and according to the The first indication message requests the UE to send the indication information to the first base station.
  • the tenth aspect of the present invention provides a base station, including:
  • a receiving module configured to receive indication information that is forwarded by the first base station, where the indication information is sent by the user equipment UE to the first base station, where the indication information includes a cell identifier of a cell in which the UE connection establishment fails,
  • the first base station is after the UE connection establishment failure and the The UE successfully establishes a base station to which the radio resource control RRC connection belongs, and the base station is a base station to which the cell corresponding to the cell identifier belongs;
  • the obtaining module is configured to learn, according to the indication information received by the receiving module, a connection establishment failure that occurs in a cell corresponding to the cell identifier.
  • the method further includes: a processing module, configured to: obtain, by the learning module, the corresponding cell identifier according to the indication information received by the receiving module After the connection establishment failure occurs in the cell, determining, according to the indication information, that the cell corresponding to the cell identifier is an uplink and downlink unbalanced cell;
  • a sending module configured to: after the processing module determines, according to the indication information, that the cell corresponding to the cell identifier is an uplink and downlink unbalanced cell, the broadcast notification message is used to notify the UE in the cell corresponding to the cell identifier to access After the failure, it is prohibited to access the cell corresponding to the cell identifier again.
  • an embodiment of the present invention provides a base station, including:
  • a receiver configured to receive a radio link failure RLF report, where the RLF report is sent by the user equipment UE or forwarded by the third base station, where the third base station is after the UE handover failure and the UE Successfully establishing a radio resource control RRC connected base station;
  • a processor configured to compare the RLF report received by the receiver with a preset feature
  • a transmitter configured to: when the processor determines that the RLF report is consistent with the preset feature, send indication information to the second base station, where the second base station learns the second according to the indication information The access failure occurred in the cell of the base station;
  • the base station is a source cell base station in which the handover failure occurs in the UE, and the second base station is a target handover cell base station in which the UE fails to perform the handover failure.
  • the RLF report includes at least an identifier of the target handover cell and a reason for the handover failure, where the preset feature is: the UE The handover fails, and the reason for the handover failure is that the random access channel RACH fails; or
  • the RLF report includes at least the identifier of the target handover cell and the identifier of the re-establishment target cell, where the preset feature is: the identifier of the re-establishment target cell is the same as the identifier of the target handover cell; or
  • the RLF report includes at least: information about whether the re-establishment is successful, and the preset feature is: re-establishment failure; or
  • the RLF report includes: an identifier of the target handover cell and a channel measurement result of the target handover cell in which the handover failure occurs, the preset feature is: the handover failure of the UE occurs, and the target handover of the handover failure occurs.
  • the channel measurement result of the cell is higher than a predetermined threshold.
  • the indication information includes:
  • the RLF reports and/or indicates that the cell of the second base station is information of an uplink and downlink unbalanced cell
  • the transmitter is used to:
  • the cell of the second base station is the information of the uplink and downlink unbalanced cell, and the access failure situation occurring in the cell of the second base station is known.
  • an embodiment of the present invention provides a base station, including:
  • the receiver is configured to receive the indication information sent by the first base station, where the indication information is that the first base station compares the RLF report with the preset feature after receiving the radio link failure RLF report, when determining the location
  • the RLF report received by the first base station is sent by the user equipment UE or forwarded by the third base station, and the third base station is in the office. Determining, after the UE handover fails, the base station that successfully establishes a radio resource control RRC connection with the UE;
  • a processor configured to learn, according to the indication information received by the receiver, an access failure situation occurring in a cell of the second base station;
  • the first base station is a source cell base station in which the handover failure occurs in the UE, and the base station is a target handover cell base station in which the UE fails to perform the handover failure.
  • the RLF report includes at least an identifier of the target handover cell and a reason for a handover failure, where the preset feature is: the UE The handover fails, and the reason for the handover failure is that the random access channel RACH fails; or
  • the RLF report includes at least the identifier of the target handover cell and the reestablishment target cell And the preset feature is: the identifier of the re-established target cell is the same as the identifier of the target handover cell; or
  • the RLF report includes at least: information about whether the re-establishment is successful, and the preset feature is: re-establishment failure; or
  • the RLF report includes: an identifier of the target handover cell and a channel measurement result of the target handover cell in which the handover failure occurs, the preset feature is: the handover failure of the UE occurs, and the target handover of the handover failure occurs.
  • the channel measurement result of the cell is higher than a predetermined threshold.
  • the indication information includes:
  • the RLF reports and/or indicates that the cell of the second base station is information of an uplink and downlink unbalanced cell
  • the processor is used to:
  • the access failure situation occurring in the cell of the second base station is learned.
  • the processor is specifically configured to report and/or indicate the second base station according to the RLF
  • the cell is the information of the uplink and downlink unbalanced cell, and determines that the first cell of the second base station is an uplink and downlink unbalanced cell;
  • the base station further includes:
  • a transmitter configured to: after the processor determines that the first cell of the second base station is an uplink and downlink unbalanced cell, broadcast a notification message, to notify the UE in the first cell to prohibit reconnection after the access failure Entering the first cell.
  • a thirteenth aspect, the embodiment of the present invention provides a base station, including:
  • a receiver configured to receive indication information sent by the user equipment UE, where the indication information includes a cell identifier of a cell in which the UE connection establishment fails, and the base station successfully establishes a radio after the UE connection establishment fails
  • the transmitter configured to forward, according to the cell identifier included in the indication information received by the receiver, to the second base station to which the second cell corresponding to the cell identifier belongs
  • the indication information is used by the second base station to learn, according to the indication information, a connection establishment failure situation occurring in the second cell.
  • the indication information further includes: a total number of times the UE connection establishment fails, or a number of consecutive connection establishment failures of the UE, or The specific reason why the UE connection establishment fails.
  • the receiver is further configured to: receive an indication sent by the UE Receiving, by the UE, the first indication message sent by the UE, where the first indication message is used to indicate that: the UE stores the indication information;
  • the base station further includes:
  • a processor configured to request the UE to send the indication information according to the first indication message received by the receiver.
  • the embodiment of the present invention provides a user equipment, including:
  • a processor configured to: after the RRC connection establishment failure of the radio resource control occurs, record indication information, where the indication information includes a cell identifier of a cell in which the user equipment UE connection establishment fails; and a transmitter, where the UE is used in the UE and the first base station After the RRC connection is established, the indication information recorded by the logger is sent to the first base station, where the first base station belongs to the second base station to which the second cell corresponding to the cell identifier belongs according to the cell identifier. Forwarding the indication information, where the second base station learns, according to the indication information, a connection establishment failure that occurs in the second cell.
  • the indication information further includes: a total number of times the UE connection establishment fails, or a number of consecutive connection establishment failures of the UE, or The specific reason why the UE connection establishment fails.
  • the processor is further configured to:
  • the transmitter After the transmitter sends the indication information to the first base station, the recorded indication information is cleared.
  • the first base station Before sending the indication information to the first base station, sending, by the first base station, a first indication message, where the first indication message is used by the first base station to learn that the UE stores the Instructing information, and requesting the UE to send the indication information to the first base station according to the first indication message.
  • an embodiment of the present invention provides a base station, including:
  • a receiver configured to receive indication information that is forwarded by the first base station, where the indication information is sent by the user equipment UE to the first base station, where the indication information includes a cell identifier of a cell in which the UE connection establishment fails,
  • the first base station is a base station to which the cell that the radio resource control RRC connection is successfully established after the UE connection establishment fails, and the base station is a base station to which the cell corresponding to the cell identifier belongs;
  • a processor configured to learn, according to the indication information received by the receiver, a connection establishment failure situation occurring in a cell corresponding to the cell identifier.
  • the processor is further configured to:
  • connection establishment failure in the cell corresponding to the cell identifier is obtained according to the indication information received by the receiver, determining, according to the indication information, that the cell corresponding to the cell identifier is an uplink and downlink unbalanced cell;
  • a transmitter configured to: after the processor determines, according to the indication information, that the cell corresponding to the cell identifier is an uplink and downlink unbalanced cell, to broadcast a notification message, to notify the UE in the cell corresponding to the cell identifier to access After the failure, it is prohibited to access the cell corresponding to the cell identifier again.
  • the RLF report is received by the first base station, and the RLF report is sent by the UE or forwarded by the third base station, and then the first base station reports the RLF and the preset feature.
  • the first base station sends the indication information to the second base station, so that the second base station controls, according to the indication information, the behavior of the UE after the cell access failure included in the second base station.
  • the cell can learn the cause of the access or handover failure in the coverage area of the UE by using the indication information, so as to control the UE to which the cell belongs to control the UE in the cell.
  • the behavior after the entry or failover provides conditions.
  • Embodiment 1 is a flowchart of Embodiment 1 of a method for transmitting indication information according to the present invention
  • Embodiment 1 is a flowchart of Embodiment 1 of a method for receiving indication information according to the present invention
  • Embodiment 3 is a flowchart of Embodiment 2 of a method for transmitting indication information according to the present invention
  • Embodiment 4 is a flowchart of Embodiment 3 of a method for transmitting indication information according to the present invention.
  • FIG. 5 is a flowchart of Embodiment 2 of a method for receiving indication information according to the present invention.
  • Embodiment 1 of a base station is a schematic structural diagram of Embodiment 1 of a base station according to the present invention.
  • Embodiment 7 is a schematic structural diagram of Embodiment 2 of a base station according to the present invention.
  • Embodiment 8 is a schematic structural diagram of Embodiment 3 of a base station according to the present invention.
  • Embodiment 4 of a base station according to the present invention is a schematic structural diagram of Embodiment 4 of a base station according to the present invention.
  • Embodiment 5 of a base station according to the present invention is a schematic structural diagram of Embodiment 5 of a base station according to the present invention.
  • Embodiment 1 is a schematic structural diagram of Embodiment 1 of a user equipment according to the present invention.
  • Embodiment 12 is a schematic structural diagram of Embodiment 2 of a user equipment according to the present invention.
  • FIG. 13 is a schematic structural diagram of Embodiment 6 of a base station according to the present invention.
  • Embodiment 7 of a base station is a schematic structural diagram of Embodiment 7 of a base station according to the present invention.
  • Embodiment 8 of a base station according to the present invention is a schematic structural diagram of Embodiment 8 of a base station according to the present invention.
  • Embodiment 9 of a base station is a schematic structural diagram of Embodiment 9 of a base station according to the present invention.
  • Embodiment 10 of a base station according to the present invention is a schematic structural diagram of Embodiment 10 of a base station according to the present invention.
  • Embodiment 11 of a base station is a schematic structural diagram of Embodiment 11 of a base station according to the present invention.
  • Embodiment 12 of a base station is a schematic structural diagram of Embodiment 12 of a base station according to the present invention.
  • Embodiment 3 of a user equipment according to the present invention is a schematic structural diagram of Embodiment 3 of a user equipment according to the present invention.
  • FIG. 21 is a schematic structural diagram of Embodiment 13 of a base station according to the present invention.
  • FIG. 22 is a schematic structural diagram of Embodiment 14 of a base station according to the present invention. detailed description
  • Embodiment 1 is a flowchart of Embodiment 1 of a method for transmitting an indication information according to the present invention. As shown in FIG. 1, the method in this embodiment may include:
  • the first base station fails to receive a radio link (Radio link failure, hereinafter referred to as:
  • the RLF report reports that the RLF report is sent by the UE or is forwarded by the third base station.
  • the third base station is a base station that successfully establishes a Radio Resource Control (RRC) connection after the UE fails to handover.
  • RRC Radio Resource Control
  • the first base station is a source cell base station where the UE fails to handover
  • the second base station is a target handover cell base station where the UE fails to handover.
  • the RLF report is sent by the UE or forwarded by the third base station.
  • the following describes the transmission of the RLF report by taking the Chiba phenomenon as an example.
  • the first base station is the base station where the cell A is located
  • the second base station is the base station where the cell B is located
  • the UE has a water surface between the cell A, the cell A and the cell B, the cell C and the cell A are adjacent, and the UE works in the cell A. Gradually move closer to cell B.
  • the network needs to switch to the cell B according to the measurement of the downlink signal, and triggers the handover. After the handover trigger, the UE fails to access the random access channel (RACH) in the cell B, and fails to access the switch.
  • RACH random access channel
  • the UE After the handover fails, the UE performs cell selection, selects to cell B, initiates RRC connection re-establishment to cell B, and fails to reestablish.
  • the UE records the RLF report, which includes handover failure and reconstruction failure information. Specifically, the source cell identifier, the target handover cell identifier, the re-establishment target cell identifier, the reason for the handover failure, the channel measurement result of the target handover cell where the handover fails, and/or the information about whether the handover is successful or not may be included.
  • the UE re-selects to the cell C or the cell A, and reports the RLF report. If it is reported to the cell C, the cell C forwards the report to the serving cell A before the failure.
  • the first base station compares the RLF report with the preset feature.
  • the first base station sends the indication information to the second base station, where the second base station learns, according to the indication information, an access failure situation occurring in the cell of the second base station.
  • the RLF report includes at least the identifier of the target handover cell and the reason for the handover failure.
  • the preset feature is: the handover failure of the UE occurs, and the reason for the handover failure is that the RACH fails; or
  • the RLF report includes at least the identifier of the target handover cell and the identifier of the target cell to be reestablished, and the preset feature is: the identifier of the re-establishment target cell is the same as the identifier of the target handover cell; or
  • the RLF report includes at least: information on whether the re-establishment is successful, and the preset characteristics are: re-establishment failure; or,
  • the RLF report includes at least: an identifier of the target handover cell and a channel measurement result of the target handover cell in which the handover failure occurs, and the preset feature is: the handover failure of the UE occurs, and the channel measurement result of the target handover cell in which the handover failure occurs is higher than a predetermined threshold. value.
  • the indication information includes: an RLF report and/or information indicating that the cell of the second base station is an uplink and downlink unbalanced cell.
  • the first base station sends the indication information to the second base station, where the second base station learns, according to the indication information, the access failure that occurs in the cell of the second base station, and specifically includes:
  • the first base station sends an RLF report to the second base station, and/or indicates that the cell of the second base station is the uplink and downlink unbalanced cell, and is used by the second base station to report the uplink and downlink imbalance according to the RLF report and/or the cell indicating the second base station.
  • the information of the cell learns the access failure situation occurring in the cell of the second base station. Specifically, it provides conditions for the second base station to control the behavior of the UE after the access or handover fails. For example, the second base station learns that there is a problem of the Chiba phenomenon in the area covered by the second base station, and can control the behavior of the UE after the access failure, so as to prevent the UE from continuously trying to access after the access failure of the UE.
  • the first base station receives the RLF report, and the RLF report is sent by the UE or forwarded by the third base station, and then the first base station compares the RLF report with the preset feature.
  • the first base station sends the indication information to the second base station, and the second base station may learn, according to the indication information, the access failure situation occurring in the cell of the second base station. Therefore, after the UE accesses or fails to be handed over in a certain cell, the cell can learn the cause of the access or handover failure in the coverage area of the UE by using the indication information, so as to control the UE to which the cell belongs to control the UE in the cell.
  • the behavior after the entry or failover provides conditions.
  • FIG. 2 is a flowchart of Embodiment 1 of the method for receiving information according to the present invention. As shown in FIG. 2, the method in this embodiment may include:
  • the second base station receives the indication information sent by the first base station.
  • the indication information is that the first base station reports the RLF report with a preset special after receiving the RLF report.
  • the RLF report is determined to be consistent with the preset feature
  • the RLF report received by the first base station is sent by the UE or forwarded by the third base station, and the third base station is after the UE handover fails.
  • the UE successfully establishes an RRC connected base station.
  • the first base station is a source cell base station where the UE fails to handover
  • the second base station is a target handover cell base station where the UE fails to handover.
  • the RLF report includes at least the identifier of the target handover cell and the reason for the handover failure.
  • the preset feature is: the handover failure of the UE occurs, and the reason for the handover failure is that the RACH fails; or
  • the RLF report includes at least the identifier of the target handover cell and the identifier of the target cell to be reestablished.
  • the preset feature is: the identifier of the re-establishment target cell is the same as the identifier of the target handover cell; or
  • the RLF report includes at least: information on whether the re-establishment is successful, and the preset characteristics are: re-establishment failure; or,
  • the RLF report includes at least: an identifier of the target handover cell and a channel measurement result of the target handover cell in which the handover failure occurs, and the preset feature is: the handover failure of the UE occurs, and the channel measurement result of the target handover cell in which the handover failure occurs is higher than a predetermined threshold. value.
  • the second base station learns, according to the indication information, an access failure situation occurring in a cell of the second base station.
  • the indication information includes: an RLF report and/or information indicating that the cell of the second base station is an uplink and downlink unbalanced cell.
  • the second base station learns, according to the indication information, the access failure situation occurring in the cell of the second base station, including:
  • the second base station learns the access failure situation occurring in the cell of the second base station according to the RLF report and/or the information indicating that the cell of the second base station is the uplink and downlink unbalanced cell.
  • the second base station After the second base station learns the access failure situation in the cell of the second base station, it can control the behavior of the UE after the access failure, and prevent the UE from continuously trying to access after the cell fails to access, and improve the UE access or handover. s efficiency.
  • the second base station according to the RLF report and/or the information indicating that the cell of the second base station is the uplink and downlink unbalanced cell, determines that the first cell of the second base station is an uplink and downlink unbalanced cell broadcast notification message, and notifies the first cell. The UE is prohibited from accessing the first cell again after the access fails. It should be noted that the notification message is used to notify all UEs in the first cell to prohibit access to the first cell again after the access fails.
  • the target handover cell base station that receives the handover failure of the UE receives the indication information sent by the source cell base station that failed the handover, and then the target handover cell base station learns the access failure occurring in the cell according to the indication information.
  • the cell can learn the cause of the access or handover failure in the coverage area of the UE by using the indication information, so as to control the UE to which the cell belongs to control the UE in the cell.
  • the behavior after the entry or failover provides conditions.
  • FIG. 3 is a flowchart of Embodiment 2 of the method for transmitting the indication information according to the present invention. As shown in FIG. 3, in this embodiment, the method in this embodiment may include:
  • the first base station receives the indication information sent by the UE, where the indication information includes a cell identifier of the cell that the UE is connected to establish a failure.
  • the first base station is a base station to which the UE that successfully establishes an RRC connection after the UE connection establishment fails.
  • the first base station forwards the indication information to the second base station to which the second cell corresponding to the cell identifier belongs according to the cell identifier, and the second base station learns, according to the indication information, the connection establishment failure that occurs in the second cell.
  • the indication information further includes: a total number of times the UE connection establishment fails, or a number of consecutive connection establishment failures of the UE.
  • the indication information may further include: a specific reason for the connection establishment failure, such as not receiving the preamble confirmation, or not receiving the RRC connection establishment confirmation message.
  • the method further includes:
  • the first base station receives the first indication message sent by the UE, where the first indication message is used to indicate that: the UE stores the indication information;
  • the first base station requests the UE to send the indication information according to the indication message.
  • the method for transmitting the indication information provided by the embodiment after receiving the indication information sent by the UE, the base station to which the cell to which the UE successfully establishes the RRC connection after the UE connection establishment fails, and the second corresponding to the cell identifier according to the cell identifier in the indication information
  • the base station to which the cell belongs forwards the indication information, and is used by the second base station to learn, according to the indication information, a connection establishment failure that occurs in the second cell. Therefore, after the UE fails to establish a connection in a certain cell, the cell can learn the cause of the connection establishment failure in the coverage area of the UE by using the indication information, so that the base station to which the cell belongs controls the UE after the connection establishment failure occurs in the cell.
  • the behavior provides the conditions.
  • Embodiment 3 of a method for transmitting indication information according to the present invention, as shown in FIG.
  • the method in this embodiment may include:
  • the UE After the RRC connection setup fails, the UE records the indication information, where the indication information includes a cell identifier or a channel measurement result of the cell in which the UE connection establishment fails.
  • the UE initiates a connection establishment request procedure, starts a timer, and after receiving the RRC connection setup message after the timer expires, considers that the connection establishment fails, and then records the indication information.
  • the UE may record the information corresponding to the last connection establishment failure, or record the corresponding information for each connection establishment failure.
  • the UE may record the total number of connection establishment failures or the number of consecutive connection establishment failures. For example, if the first initiation of the setup request process fails, the second success, the third failure, and the fourth failure, the total number of failed statistics is 3, and the number of consecutive failures is 2.
  • the indication information further includes: a total number of times the UE connection establishment fails or a number of consecutive connection establishment failures of the UE.
  • the RRC connection setup request is sent as follows:
  • the layer 3 (RRC layer) of the UE generates an RRC connection setup request message, starts the T300 timer and sends the buffer to the layer 2, and the layer 2 refers to the Medium Access Control (MAC) layer or the wireless chain. Layer Control (Radio Link Control, RLC) layer.
  • layer 2 receives the RRC connection setup request message, triggers a random access procedure, and sends a preamble sequence request access to the base station. If the acknowledgment of the preamble sequence is received, the RRC connection setup request message in the buffer is sent to the base station (eNB), and then waits for the RRC connection setup acknowledgement message. If the RRC connection setup acknowledgement message is not received after the T300 times out, the RRC connection setup is established. The requesting process failed. If the acknowledgment of the preamble sequence is not received, the preamble sequence is reselected and sent. If the T300 fails to receive the acknowledgment of the preamble sequence, the transmission process of the RRC connection setup request fails.
  • the sending process of the RRC connection setup request after the T300 timeout fails fails to establish an RRC connection establishment failure of the access layer.
  • the access layer no longer initiates an RRC connection setup request, and then waits for the non-access stratum indication. If the non-access stratum indicates that the UE access layer wants to send the RRC connection setup request again, the UE starts T300 again for transmission.
  • the access layer In the LTE system, each time the non-access stratum triggered RRC connection is established, the access layer also triggers only one RRC connection setup failure.
  • UMTS Universal Mobile Telecommunications System
  • the UE may trigger multiple RRC connection setup request procedures at the access layer, and may also trigger multiple RRC connection setup failures.
  • the RRC connection setup failures counted by the present invention are all corresponding to the request of the non-access stratum. Whether the RRC connection establishment fails several times during the RRC connection setup request triggered by the non-access stratum, it is counted as one RRC connection failure. The RRC connection establishment failure counted by the present invention is actually the number of connection establishment failures received by the non-access stratum.
  • the indication information may further include: a specific cause of the connection establishment failure, such as not receiving the preamble confirmation, or not receiving the RRC connection establishment confirmation message.
  • the UE After the UE establishes an RRC connection with the first base station, the UE sends the indication information to the first base station, where the first base station forwards the indication information to the second base station to which the second cell corresponding to the cell identifier belongs according to the cell identifier, and is used by the UE.
  • the base station learns, according to the indication information, a connection establishment failure that occurs in the second cell.
  • the S402 further includes:
  • the UE clears the indication information of the record. After clearing, the UE restarts the calculation of the number of failures. Further, before the sending, by the UE, the indication information to the first base station, the S402 further includes:
  • the UE sends a first indication message to the first base station, where the first indication message is used to indicate that the first base station learns that the UE stores the indication information, and requests the UE to send the indication information to the first base station according to the first indication message.
  • the UE After the RRC connection setup fails, the UE sends the indication information to the first base station, and the UE sends the indication information to the first base station according to the cell identifier. And transmitting, by the second base station to which the second cell corresponding to the cell identifier belongs, the indication information, where the second base station learns, according to the indication information, a connection establishment failure that occurs in the second cell. Therefore, after the UE fails to establish a connection in a certain cell, the cell can learn the cause of the connection establishment failure in the coverage area of the UE by using the indication information, so that the base station to which the cell belongs controls the UE after the connection establishment failure occurs in the cell. The behavior provides the conditions.
  • FIG. 5 is a flowchart of Embodiment 2 of the method for receiving information according to the present invention. As shown in FIG. 5, in this embodiment, the method in this embodiment may include:
  • the second base station receives the indication information that is forwarded by the first base station, where the indication information is sent by the UE to the first base station, where the indication information includes a cell identifier of the cell that the UE connection establishment fails, and the first The base station is a cell that successfully establishes an RRC connection with the UE after the UE connection establishment fails, and the second base station is a base station to which the cell corresponding to the cell identifier belongs.
  • the second base station learns, according to the indication information, a connection establishment failure that occurs in a cell corresponding to the cell identifier.
  • the second base station learns, according to the indication information, that the connection establishment failure occurs in the cell corresponding to the cell identifier, the second base station further includes:
  • the second base station determines, according to the indication information, that the cell corresponding to the cell identifier is an uplink and downlink unbalanced cell broadcast notification message, and is used to notify the UE in the cell corresponding to the cell identifier to prohibit access to the cell corresponding to the cell identifier again after the access failure. .
  • the method for receiving the indication information provided in this embodiment, after receiving the indication information forwarded by the first base station by the second base station, obtains a connection establishment failure condition occurring in the cell corresponding to the cell identifier included in the indication information according to the indication information. Therefore, after the UE fails to establish a connection in a certain cell, the cell can learn the cause of the connection establishment failure in the coverage area of the UE by using the indication information, so that the base station to which the cell belongs controls the UE after the connection establishment failure occurs in the cell. The behavior provides the conditions.
  • FIG. 6 is a schematic structural diagram of Embodiment 1 of a base station according to the present invention.
  • the base station in this embodiment may include: a receiving module 11, a processing module 12, and a sending module 13, where the receiving module 11 is configured to receive an RLF report.
  • the RLF report is sent by the UE or forwarded by the third base station, and the third base station is a base station that successfully establishes an RRC connection with the UE after the UE fails to handover.
  • the processing module 12 is configured to compare the RLF report received by the receiving module 11 with a preset feature.
  • the sending module 13 is configured to: when the processing module 12 determines that the RLF report is consistent with the preset feature, send the indication information to the second base station, where the second base station learns, according to the indication information, an access failure situation occurring in the cell of the second base station.
  • the base station is a source cell base station where the UE fails to handover
  • the second base station is a target handover cell base station where the UE fails to handover.
  • the RLF report includes at least the identifier of the target handover cell and the reason for the handover failure.
  • the preset feature is: the handover failure of the UE occurs, and the reason for the handover failure is that the RACH fails; or
  • the RLF report includes at least the identifier of the target handover cell and the identifier of the re-establishment target cell, and the preset feature is: the identifier of the re-establishment target cell is the same as the identifier of the target handover cell; or the RLF report includes at least: information about whether the re-establishment is successful,
  • the default features are: Re-establishment Lose; or,
  • the RLF report includes at least: an identifier of the target handover cell and a channel measurement result of the target handover cell in which the handover failure occurs, and the preset feature is: the handover failure of the UE occurs, and the channel measurement result of the target handover cell in which the handover failure occurs is higher than a predetermined threshold. value.
  • the indication information includes: an RLF report and/or information indicating that the cell of the second base station is an uplink and downlink unbalanced cell.
  • the sending module 12 is used to:
  • the access failure situation occurring in the cell of the second base station is known.
  • the device in this embodiment may be used to implement the technical solution of the method embodiment shown in FIG. 1.
  • the implementation principle is similar, and details are not described herein again.
  • the base station provided by the embodiment receives the RLF report by the receiving module, and the RLF report is sent by the UE or forwarded by the third base station, and then the sending module compares the RLF report with the preset feature, when determining the RLF report and the pre-determination
  • the indication information is sent to the second base station, and the second base station can learn, according to the indication information, an access failure situation occurring in the cell of the second base station. Therefore, after the UE accesses or fails to be handed over in a certain cell, the cell can learn the cause of the access or handover failure in the coverage area of the UE by using the indication information, so as to control the UE to which the cell belongs to control the UE in the cell.
  • the behavior after the entry or failover provides conditions.
  • FIG. 7 is a schematic structural diagram of Embodiment 2 of a base station according to the present invention.
  • the base station in this embodiment may include: a receiving module 21 and a processing module 22, where the receiving module 21 is configured to receive indication information sent by the first base station.
  • the indication information is that the first base station compares the RLF report with the preset feature after receiving the RLF report, and when the RLF report is determined to be consistent with the preset feature, the RLF report received by the first base station is used by the UE.
  • the third base station is sent by the third base station, and the third base station is a base station that successfully establishes an RRC connection with the UE after the UE fails to handover.
  • the processing module 22 is configured to learn, according to the indication information received by the receiving module 21, an access failure situation occurring in a cell of the second base station.
  • the first base station is a source cell base station where the UE fails to handover, and the base station is a target handover cell base station where the UE fails to handover.
  • the RLF report includes at least the identity of the target handover cell and the reason for the handover failure, and the preset feature.
  • the reason for the failure of the handover of the UE and the failure of the handover is that the RACH fails; or
  • the RLF report includes at least the identifier of the target handover cell and the identifier of the re-establishment target cell, and the preset feature is: the identifier of the re-establishment target cell is the same as the identifier of the target handover cell; or the RLF report includes at least: information about whether the re-establishment is successful, The default characteristics are: re-establishment failure; or,
  • the RLF report includes at least: an identifier of the target handover cell and a channel measurement result of the target handover cell in which the handover failure occurs, and the preset feature is: the handover failure of the UE occurs, and the channel measurement result of the target handover cell in which the handover failure occurs is higher than a predetermined threshold. value.
  • the indication information includes: an RLF report and/or information indicating that the cell of the base station is an uplink and downlink unbalanced cell.
  • the processing module 22 is used to:
  • the access failure situation occurring in the cell of the second base station is obtained.
  • FIG. 8 is a schematic structural diagram of Embodiment 3 of a base station according to the present invention.
  • the base station in this embodiment may further include: a sending module 23, based on the base station shown in FIG.
  • the processing module 22 is specifically configured to determine, according to the RLF report and/or the information indicating that the cell of the second base station is an uplink and a downlink unbalanced cell, the first cell of the second base station is an uplink and downlink unbalanced cell.
  • the sending module 23 is configured to broadcast a notification message after the processing module 22 determines that the first cell of the second base station is an uplink and downlink unbalanced cell, and is configured to notify the UE in the first cell to prohibit access to the first cell again after the access failure.
  • FIG. 7 and FIG. 8 can be used to implement the technical solution of the method embodiment shown in FIG. 2, and the implementation principle and technical effects are similar, and details are not described herein again.
  • the base station provided by the embodiment shown in FIG. 7 and FIG. 8 receives the indication information sent by the source cell base station that has failed the handover by the receiving module, and then the processing module learns the access occurring in the cell of the second base station according to the indication information received by the receiving module. Failure situation. Therefore, after the UE accesses or fails to be handed over in a certain cell, the cell can learn the cause of the access or handover failure in the coverage area of the UE by using the indication information, so as to control the UE to which the cell belongs to control the UE in the cell.
  • the behavior after the entry or failover provides conditions.
  • FIG. 9 is a schematic structural diagram of Embodiment 4 of a base station according to the present invention.
  • the apparatus in this embodiment may include: a receiving module 31 and a sending module 32, where the receiving module 31 is configured to receive The indication information sent by the UE, the indication information includes a cell identifier of a cell in which the UE connection establishment fails, and the base station is a cell that successfully establishes an RRC connection with the UE after the UE connection establishment fails.
  • the sending module 32 is configured to forward the indication information to the base station to which the second cell corresponding to the cell identifier belongs according to the cell identifier included in the indication information received by the receiving module 31, where the second base station learns, according to the indication information, that the connection establishment failure occurs in the second cell. happening.
  • the indication information further includes: a total number of times the UE connection establishment fails, or a number of consecutive connection establishment failures of the UE, or a specific reason for the UE connection establishment failure.
  • the device in this embodiment may be used to implement the technical solution of the method embodiment shown in FIG. 3, and the implementation principle and the technical effect are similar, and details are not described herein again.
  • the base station provided by the embodiment, after receiving the indication information sent by the UE, the sending module forwards the indication information to the base station to which the second cell corresponding to the cell identifier belongs according to the cell identifier in the indication information, and is used by the second base station according to the indication information.
  • the connection establishment failure occurring in the second cell is known. Therefore, after the UE fails to establish a connection in a certain cell, the cell can learn the cause of the connection establishment failure in the coverage area of the UE by using the indication information, so that the base station to which the cell belongs controls the UE after the connection establishment failure occurs in the cell.
  • the behavior provides the conditions.
  • FIG. 10 is a schematic structural diagram of Embodiment 5 of a base station according to the present invention.
  • the base station in this embodiment may further include: a processing module 33, based on the base station shown in FIG.
  • the receiving module 31 is further configured to: before receiving the indication information sent by the UE, receive the first indication message sent by the UE, where the first indication message is used to indicate that the UE stores the indication information.
  • the processing module 33 is configured to request the UE to send the indication information according to the first indication message.
  • the device in this embodiment may be used to implement the technical solution of the method embodiment shown in FIG. 3, and the implementation principle and the technical effect are similar, and details are not described herein again.
  • FIG. 11 is a schematic structural diagram of Embodiment 1 of a user equipment according to the present invention.
  • the user equipment in this embodiment may include: a recording module 41 and a sending module 42, where the recording module 41 is configured to fail to establish an RRC connection. After that, the indication information is recorded, and the indication information includes the cell identifier of the cell that the UE connection establishment fails.
  • the sending module 42 is configured to: after the UE establishes an RRC connection with the first base station, send the indication information recorded by the recording module 41 to the first base station, where the first base station belongs to the second base station to which the second cell corresponding to the cell identifier belongs according to the cell identifier. Forwarding letter And the second base station is configured to learn, according to the indication information, a connection establishment failure situation occurring in the second cell.
  • the indication information further includes: a total number of times the UE connection establishment fails, or a number of consecutive connection establishment failures of the UE, or a specific reason for the UE connection establishment failure.
  • the device in this embodiment may be used to implement the technical solution of the method embodiment shown in FIG. 4, and the implementation principle and the technical effect are similar, and details are not described herein again.
  • the user equipment provided in this embodiment records the indication information after the RRC connection setup fails in the UE by the recording module, and after the UE establishes an RRC connection with the first base station, the sending module sends the indication information to the first base station, where the first base station is used.
  • the second base station that belongs to the second cell to which the cell identifier belongs is forwarded according to the cell identifier, and is used by the second base station to learn, according to the indication information, that the connection establishment failure occurs in the second cell. Therefore, after the UE fails to establish a connection in a certain cell, the cell can learn the cause of the connection establishment failure in the coverage area of the UE by using the indication information, so that the base station to which the cell belongs controls the UE after the connection establishment failure occurs in the cell.
  • the behavior provides the conditions.
  • FIG. 12 is a schematic structural diagram of Embodiment 2 of a user equipment according to the present invention.
  • the user equipment in this embodiment may further include: a clearing module 43 according to the user equipment shown in FIG.
  • the module 43 is configured to clear the recorded indication information after the sending module 42 sends the indication information to the first base station.
  • the sending module 42 is further configured to:
  • the first base station Before sending the indication information to the first base station, sending, by the first base station, a first indication message, where the first indication message is used by the first base station to learn that the UE stores the indication information, and requesting the UE to send an indication to the first base station according to the first indication message. information.
  • FIG. 13 is a schematic structural diagram of Embodiment 6 of a base station according to the present invention.
  • the base station in this embodiment may include: a receiving module 51 and a learning module 52, where the receiving module 51 is configured to receive indication information forwarded by the first base station.
  • the indication information is sent by the UE to the first base station, and the indication information includes the cell identifier of the cell in which the UE connection establishment fails.
  • the first base station is a base station to which the UE that successfully establishes an RRC connection after the UE connection establishment fails, and the base station is a cell. Identify the base station to which the corresponding cell belongs.
  • the learning module 52 is configured to learn, according to the indication information received by the receiving module 51, a connection establishment failure situation occurring in a cell corresponding to the cell identifier.
  • the device of this embodiment may be used to implement the technical solution of the method embodiment shown in FIG. 5,
  • the implementation principle is similar to the technical effect, and will not be described here.
  • the learning module obtains the connection establishment failure condition occurring in the cell corresponding to the cell identifier according to the indication information received by the receiving module. Therefore, after the UE fails to establish a connection in a certain cell, the cell can learn the cause of the connection establishment failure in the coverage area of the UE by using the indication information, so that the base station to which the cell belongs controls the UE after the connection establishment failure occurs in the cell.
  • the behavior provides the conditions.
  • FIG. 14 is a schematic structural diagram of Embodiment 7 of a base station according to the present invention.
  • the base station of this embodiment further includes: a processing module 53 and a sending module 54 on the basis of the base station shown in FIG.
  • the processing module 53 is configured to determine, after the learning module 52, according to the indication information received by the receiving module 51, that the connection establishment failure occurs in the cell corresponding to the cell identifier, and determine, according to the indication information, the cell corresponding to the cell identifier is an uplink and downlink unbalanced cell.
  • the sending module 54 is configured to: after the processing module 53 determines, according to the indication information, that the cell corresponding to the cell identifier is an uplink and downlink unbalanced cell, the broadcast notification message is used to notify the UE in the cell corresponding to the cell identifier to prohibit access to the cell again after the access fails. Identify the corresponding cell.
  • the device of this embodiment may be used to implement the technical solution of the method embodiment shown in FIG. 5, and the implementation principle and the technical effect are similar, and details are not described herein again.
  • FIG. 15 is a schematic structural diagram of Embodiment 8 of a base station according to the present invention.
  • the base station in this embodiment may include: a receiver 61, a processor 62, and a transmitter 63, where the receiver 61 is configured to receive an RLF report.
  • the RLF report is sent by the UE or forwarded by the third base station, and the third base station is a base station that successfully establishes an RRC connection with the UE after the UE fails to handover.
  • the processor 62 is configured to compare the RLF report received by the receiver 61 with a preset feature.
  • the transmitter 63 is configured to: when the processor 62 determines that the RLF report is consistent with the preset feature, send the indication information to the second base station, where the second base station learns, according to the indication information, an access failure condition occurring in the cell of the second base station.
  • the base station is a source cell base station where the UE fails to handover
  • the second base station is a target handover cell base station where the UE fails to handover.
  • the RLF report includes at least the identifier of the target handover cell and the reason for the handover failure.
  • the preset feature is: the handover failure of the UE occurs, and the reason for the handover failure is that the RACH fails; or
  • the RLF report includes at least the identity of the target handover cell and the identity of the re-established target cell,
  • the feature is: re-establishing the identity of the target cell is the same as that of the target handover cell; or
  • the RLF report includes at least: information on whether the re-establishment is successful, and the preset characteristics are: re-establishment failure; or,
  • the RLF report includes at least: an identifier of the target handover cell and a channel measurement result of the target handover cell in which the handover failure occurs, and the preset feature is: the handover failure of the UE occurs, and the channel measurement result of the target handover cell in which the handover failure occurs is higher than a predetermined threshold. value.
  • the indication information includes: an RLF report and/or information indicating that the cell of the second base station is an uplink and downlink unbalanced cell.
  • Transmitter 62 is used to:
  • the access failure situation occurring in the cell of the second base station is known.
  • the device in this embodiment may be used to implement the technical solution of the method embodiment shown in FIG. 1.
  • the implementation principle is similar, and details are not described herein again.
  • the base station receives the RLF report by using the receiver, and the RLF report is sent by the UE or forwarded by the third base station, and then the sender compares the RLF report with the preset feature, when determining the RLF report and the pre-determined
  • the indication information is sent to the second base station, and the second base station can learn, according to the indication information, an access failure situation occurring in the cell of the second base station. Therefore, after the UE accesses or fails to be handed over in a certain cell, the cell can learn the cause of the access or handover failure in the coverage area of the UE by using the indication information, so as to control the UE to which the cell belongs to control the UE in the cell.
  • the behavior after the entry or failover provides conditions.
  • FIG. 16 is a schematic structural diagram of Embodiment 9 of a base station according to the present invention.
  • the base station in this embodiment may include: a receiver 71 and a processor 72, where the receiver 71 is configured to receive indication information sent by the first base station.
  • the indication information is that the first base station compares the RLF report with the preset feature after receiving the RLF report, and when the RLF report is determined to be consistent with the preset feature, the RLF report received by the first base station is performed by the UE.
  • the third base station is sent by the third base station, and the third base station is a base station that successfully establishes an RRC connection with the UE after the UE fails to handover.
  • the processor 72 is configured to learn, according to the indication information received by the receiver 71, an access failure situation occurring in a cell of the second base station.
  • the first base station is a source cell base station where the UE fails to handover, and the base station is a target handover cell base station where the UE fails to handover. Among them, optional:
  • the RLF report includes at least the identifier of the target handover cell and the reason for the handover failure.
  • the preset feature is: the handover failure of the UE occurs, and the reason for the handover failure is that the RACH fails; or
  • the RLF report includes at least the identifier of the target handover cell and the identifier of the target cell to be reestablished.
  • the preset feature is: the identifier of the re-establishment target cell is the same as the identifier of the target handover cell; or
  • the RLF report includes at least: information on whether the re-establishment is successful, and the preset characteristics are: re-establishment failure; or,
  • the RLF report includes at least: an identifier of the target handover cell and a channel measurement result of the target handover cell in which the handover failure occurs, and the preset feature is: the handover failure of the UE occurs, and the channel measurement result of the target handover cell in which the handover failure occurs is higher than a predetermined threshold. value.
  • the indication information includes: an RLF report and/or information indicating that the cell of the base station is an uplink and downlink unbalanced cell.
  • the processor 72 is used to:
  • the access failure situation occurring in the cell of the second base station is obtained.
  • FIG. 17 is a schematic structural diagram of Embodiment 10 of a base station according to the present invention. As shown in FIG. 17, the base station of this embodiment further includes: a transmitter 73, based on the base station shown in FIG.
  • the processor 72 is specifically configured to determine, according to the RLF report and/or the information that the cell of the second base station is the uplink and downlink unbalanced cell, that the first cell of the second base station is an uplink and downlink unbalanced cell.
  • the transmitter 73 is configured to: after the processor 72 determines that the first cell of the second base station is an uplink and downlink unbalanced cell, to broadcast a notification message, to notify the UE in the first cell to prohibit access to the first cell again after the access failure.
  • the device of the embodiment shown in FIG. 16 and FIG. 17 can be used to implement the technical solution of the method embodiment shown in FIG. 2, and the implementation principle and technical effects are similar, and details are not described herein again.
  • the base station provided by the embodiment shown in FIG. 16 and FIG. 17 receives the indication information sent by the source cell base station that fails the handover by the receiver, and then the processor learns the access occurring in the cell of the second base station according to the indication information received by the receiver. Failure situation. Therefore, after the UE accesses or fails to be handed over in a certain cell, the cell can learn the cause of the access or handover failure in the coverage area of the UE by using the indication information, so as to control the UE to which the cell belongs to control the UE in the cell. The behavior after the entry or failover provides conditions.
  • FIG. 18 is a schematic structural diagram of Embodiment 11 of a base station according to the present invention. As shown in FIG.
  • the apparatus in this embodiment may include: a receiver 81 and a transmitter 82, where the receiver 81 is configured to receive indication information sent by the UE.
  • the indication information includes a cell identifier of a cell in which the UE connection establishment fails, and the base station is a cell that successfully establishes an RRC connection with the UE after the UE connection establishment fails.
  • the transmitter 82 is configured to forward the indication information to the base station to which the second cell corresponding to the cell identifier belongs according to the cell identifier included in the indication information received by the receiver 81, where the second base station learns, according to the indication information, that the connection establishment failure occurs in the second cell. happening.
  • the indication information further includes: a total number of times the UE connection establishment fails, or a number of consecutive connection establishment failures of the UE, or a specific reason for the UE connection establishment failure.
  • the device in this embodiment may be used to implement the technical solution of the method embodiment shown in FIG. 3, and the implementation principle and the technical effect are similar, and details are not described herein again.
  • FIG. 19 is a schematic structural diagram of Embodiment 12 of the base station of the present invention. As shown in FIG. 19, the base station of this embodiment is based on the base station shown in FIG. 18. Further, the method further includes: .
  • the receiver 81 is further configured to: before receiving the indication information sent by the UE, receive the first indication message sent by the UE, where the first indication message is used to indicate that the UE stores the indication information.
  • the processor 83 is configured to request the UE to send the indication information according to the first indication message.
  • the device in this embodiment may be used to implement the technical solution of the method embodiment shown in FIG. 3, and the implementation principle and the technical effect are similar, and details are not described herein again.
  • FIG. 20 is a schematic structural diagram of Embodiment 3 of a user equipment according to the present invention.
  • the user equipment in this embodiment may include: a processor 91 and a transmitter 92, where the processor 91 is configured to fail to establish an RRC connection. After that, the indication information is recorded, and the indication information includes a cell identifier of the cell in which the UE connection establishment fails.
  • the transmitter 92 is configured to: after the UE establishes an RRC connection with the first base station, send the indication information recorded by the processor 91 to the first base station, where the first base station is used according to the cell.
  • the second base station that belongs to the second cell to which the cell identifier belongs is forwarded to indicate that the second base station learns the connection establishment failure that occurs in the second cell according to the indication information.
  • the indication information further includes: a total number of times the UE connection establishment fails, or a number of consecutive connection establishment failures of the UE, or a specific reason for the UE connection establishment failure.
  • the processor 91 is further configured to clear the recorded indication information after the transmitter 92 sends the indication information to the first base station.
  • the transmitter 92 is also used to:
  • the first base station Before sending the indication information to the first base station, sending, by the first base station, a first indication message, where the first indication message is used by the first base station to learn that the UE stores the indication information, and requesting the UE to send an indication to the first base station according to the first indication message. information.
  • the device in this embodiment may be used to implement the technical solution of the method embodiment shown in FIG. 4, and the implementation principle and the technical effect are similar, and details are not described herein again.
  • the user equipment after the UE fails to establish an RRC connection, fails to record the indication information, and after the UE establishes an RRC connection with the first base station, the transmitter sends the indication information to the first base station for the first base station.
  • the second base station that belongs to the second cell to which the cell identifier belongs is forwarded according to the cell identifier, and is used by the second base station to learn, according to the indication information, that the connection establishment failure occurs in the second cell. Therefore, after the UE fails to establish a connection in a certain cell, the cell can learn the cause of the connection establishment failure in the coverage area of the UE by using the indication information, so that the base station to which the cell belongs controls the UE after the connection establishment failure occurs in the cell.
  • the behavior provides the conditions.
  • FIG. 21 is a schematic structural diagram of Embodiment 13 of a base station according to the present invention.
  • the base station in this embodiment may include: a receiver 101 and a processor 102, where the receiver 101 is configured to receive an indication forwarded by the first base station.
  • the information indicating that the information is sent by the UE to the first base station, and the indication information includes the cell identifier of the cell in which the UE connection establishment fails.
  • the first base station is a base station to which the UE successfully establishes an RRC connection after the UE connection establishment fails, and the base station is The base station to which the cell corresponding to the cell identifier belongs.
  • the processor 102 is configured to learn, according to the indication information received by the receiver 101, a connection establishment failure condition occurring in a cell corresponding to the cell identifier.
  • the device of this embodiment may be used to implement the technical solution of the method embodiment shown in FIG. 5, and the implementation principle and the technical effect are similar, and details are not described herein again.
  • the base station After receiving the indication information forwarded by the first base station, the base station provided by this embodiment receives the indication information forwarded by the first base station.
  • the processor learns, according to the indication information received by the receiver, a connection establishment failure that occurs in a cell corresponding to the cell identifier. Therefore, after the UE fails to establish a connection in a certain cell, the cell can learn the cause of the connection establishment failure in the coverage area of the UE by using the indication information, so that the base station to which the cell belongs controls the UE after the connection establishment failure occurs in the cell.
  • the behavior provides the conditions.
  • FIG. 22 is a schematic structural diagram of Embodiment 14 of the base station according to the present invention.
  • the base station in this embodiment further includes: a processor 103 and a transmitter 104, based on the base station shown in FIG. 21.
  • the processor 103 is configured to determine, according to the indication information, that the cell corresponding to the cell identifier is an uplink and downlink unbalanced cell, after the connection establishment failure condition occurs in the cell corresponding to the cell identifier, according to the indication information received by the receiver 101.
  • the transmitter 104 is configured to: after the processor 103 determines, according to the indication information, that the cell corresponding to the cell identifier is an uplink and downlink unbalanced cell, the notification message is used to notify the UE in the cell corresponding to the cell identifier that the UE is prohibited from accessing the cell again after the access fails. Identify the corresponding cell.
  • the device of this embodiment may be used to implement the technical solution of the method embodiment shown in FIG. 5, and the implementation principle and the technical effect are similar, and details are not described herein again.
  • the disclosed apparatus and method may be implemented in other manners.
  • the device embodiments described above are merely illustrative.
  • the division of the unit is only a logical function division.
  • there may be another division manner for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored, or not executed.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be in an electrical, mechanical or other form.
  • the units described as separate components may or may not be physically separate, and the components displayed as units may or may not be physical units, i.e., may be located in one place, or may be distributed over multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.
  • each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.
  • the above integrated unit can be implemented in the form of hardware or in the form of hardware plus software functional units.
  • the above-described integrated unit implemented in the form of a software functional unit can be stored in a computer readable storage medium.
  • the software functional unit is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) or a processor to perform the method of various embodiments of the present invention. Part of the steps.
  • the foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, and the like, which can store program codes. medium.

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  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
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Abstract

Des modes de réalisation de la présente invention concernent un procédé et un dispositif d'envoi et de réception d'informations d'indication. Le procédé selon l'invention comprend: la réception, par une première station de base, d'un rapport de fonction de liaison radioélectrique (RLF) associé à une caractéristique prédéfinie, et quand il est déterminé que le rapport RLF est conforme à la caractéristique prédéterminée, l'envoi, par la première station de base, des d'informations d'indication à une seconde station de base de sorte que ladite seconde station de base acquière, en fonction des informations d'indication, une situation d'échec d'accès dans une cellule de la seconde station de base. Le procédé et le dispositif d'envoi et de réception d'informations d'indication selon les modes de réalisation de la présente invention peuvent mettre en œuvre, après qu'un équipement utilisateur (UE) a échec d'accès ou de transfert dans une certaine cellule, l'acquisition par une cellule, en fonction des informations d'indication, de la raison de l'échec d'accès ou de transfert dans la couverture de la cellule, de manière à fournir une condition pour réguler les comportements de l'UE par une station de base à laquelle la cellule appartient après l'échec d'accès ou de transfert de cellule.
PCT/CN2013/080900 2013-08-06 2013-08-06 Procédé et dispositif d'envoi et de réception d'informations d'indication Ceased WO2015017975A1 (fr)

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CN201380001997.6A CN105265006B (zh) 2013-08-06 2013-08-06 指示信息发送与接收方法和装置
CN201910264820.4A CN110149731B (zh) 2013-08-06 2013-08-06 指示信息发送与接收方法和装置

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