Apparatuses, methods and computer program products for identifying handover failure modes

Patent metadata

Field	Value
Publication number	US-2016295462-A1
Application number	US-201315037219-A
Country	US
Kind code	A1
Filing date	Nov 19, 2013
Priority date	Nov 19, 2013
Publication date	Oct 6, 2016
Grant date	—

Abstract

Handover failure modes are identified by logging information associated with at least one of a handover failure or a radio link failure. The information identifies whether or not a user equipment was engaged in an exchange of at least one of data traffic or control traffic with a network at the time that the handover failure or radio link failure occurred. The information is stored in a non-transitory computer-readable medium, and the information is reported to the network. The information is reported using a radio link failure or connection failure information signaling message. The severity of the handover failure or radio link failure is evaluated based upon the information.

First claim

1 - 23 . (canceled)

24 . A method comprising:
logging information associated with at least one of a handover failure or a radio link failure, the information identifying whether or not a user equipment was engaged in an exchange of at least one of data traffic or control traffic with a network at the time that the handover failure or radio link failure occurred; storing the information in a non-transitory computer-readable medium; and reporting the information to the network.

25 . The method of claim 24 wherein the information is included in a radio link failure or connection failure information signaling message, the method further comprising determining whether or not the user equipment was engaged in the exchange of at least one of data traffic or control traffic by performing one or more of: determining a discontinuous reception state; determining a length of time that has elapsed since the user equipment has transmitted or received user data; or monitoring a buffer status.

26 . The method of claim 24 wherein the logging further comprises logging or providing an indication as to one or more of: a length of time that an interruption in the exchange of at least one of data traffic or control traffic was observed at the user equipment or determining whether or not there was an interruption during the exchange of data between the user equipment and the network.

27 . The method of claim 24 wherein the reported information further includes information identifying a signal transmission format being used at the time that the handover failure or radio link failure occurred.

28 . An apparatus comprising one or more processors and one or more memories including computer program code, the one or more memories and the computer program code being configured, with the one or more processors, to cause the apparatus to perform at least:
logging information associated with at least one of a handover failure or a radio link failure, the information identifying whether or not a user equipment was engaged in an exchange of at least one of data traffic or control traffic with a network at the time that the handover failure or radio link failure occurred; storing the information in a non-transitory computer-readable medium; and reporting the information to the network.

29 . The apparatus of claim 28 wherein the information is included in a radio link failure or connection failure information signaling message, the apparatus further performing a determination of whether or not the user equipment was engaged in the exchange of at least one of data traffic or control traffic by performing one or more of: determining a discontinuous reception state; determining a length of time that has elapsed since the user equipment has transmitted or received user data; or monitoring a buffer status.

30 . The apparatus of claim 28 wherein the logging further comprises logging or providing an indication as to one or more of: a length of time that an interruption in the exchange of at least one of data traffic or control traffic was observed at the user equipment or determining whether or not there was an interruption during the exchange of data between the user equipment and the network.

31 . The apparatus of claim 28 wherein the reported information further includes information identifying a signal transmission format being used at the time that the handover failure or radio link failure occurred.

32 . The apparatus of claim 28 , wherein the apparatus is a mobile phone further comprising:
user interface circuitry and user interface software configured to facilitate user control of at least some functions of the mobile phone through use of a display and configured to respond to user input; and a display and display circuitry configured to display at least a portion of a user interface of the mobile phone, the display and display circuitry configured to facilitate user control of at least some functions of the mobile phone.

33 . An apparatus comprising one or more processors and one or more memories including computer program code, the one or more memories and the computer program code being configured, with the one or more processors, to cause the apparatus to perform at least:
receiving logging information associated with at least one of a handover failure or a radio link failure, the information identifying whether or not a user equipment was engaged in an exchange of at least one of data traffic or control traffic with a network at the time that the handover failure or radio link failure occurred; and in response to the received logging information, categorizing the handover failure or the radio link failure based upon a severity of the handover failure or radio link failure.

34 . The apparatus of claim 33 wherein the one or more memories and the computer program code are further configured, with the one or more processors, to perform a grading or evaluation of the radio link failure, wherein the radio link failure is designated as a soft radio link failure in response to a call re-establishment procedure being successful.

35 . The apparatus of claim 33 wherein the one or more memories and the computer program code are further configured, with the one or more processors, to perform a grading or evaluation of the radio link failure, wherein the radio link failure is designated as a soft radio link failure in response to the radio link failure occurring when there is no active exchange of data between the user equipment and the network.

36 . The apparatus of claim 33 , wherein the apparatus is at least one of an eNB or a base station.

Assignees

• Nokia Technologies Oy

Inventors

• Lunden Jari Petteri
• Virtej Elena
• Dalsgaard Lars
• Malkamaki Esa Mikael
• Keskitalo Ilkka
• Koskela Jarkko Tuomo
• Koskinen Jussi-Pekka

Classifications

• H04W88/08

  Access point devices · CPC title

• H04W76/19

  Connection re-establishment · CPC title

• H04W88/02

  Terminal devices · CPC title

• H04W76/28

  Discontinuous transmission [DTX]; Discontinuous reception [DRX] · CPC title

• H04W36/0005 Primary

  Control or signalling for completing the hand-off · CPC title