Method and apparatus for improved reselection during mode transitions
First Claim
1. A method for improved reselection during mode transitions at a user equipment (UE), comprising:
- performing, at the UE, inter-radio access technology (IRAT) cell reselection measurements, wherein the IRAT cell reselection measurements are associated with a cell reselection from a first radio access technology (RAT) to a second RAT;
identifying, at the UE, a switching of the UE from an all priority scheduling mode to a high priority scheduling mode or from a high priority scheduling mode to an all priority scheduling mode, wherein the switching is identified while the IRAT cell reselection measurements are in progress, and wherein the switching is based at least on changes in signal quality of a serving cell of the UE or mobility of the UE;
initiating, at the UE, a mode transition timer at the UE in response to the identification, wherein the mode transition timer is set to a value between zero and less than a first value when the UE is switching from the all priority scheduling mode to the high priority scheduling mode or zero and less than a second value when the UE is switching from the high priority scheduling mode to the all priority scheduling mode, and wherein the first value is set to a value of Thigher priority search and the second value is set to a value of Kcarrier*Tdetect-UTRA as defined in 3GPP Specifications; and
triggering, at the UE, a search for one or more frequencies of the high priority scheduling mode or one or more frequencies of the all priority scheduling mode upon expiration of the mode transition timer.
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Abstract
The present disclosure presents a method and apparatus for improved reselection during mode transitions at a user equipment (UE). For example, the disclosure presents a method for identifying that a user equipment (UE) has started switching from a first priority scheduling mode to a second priority scheduling mode while making measurements for reselection. In addition, such an example method, may include initiating a mode transition timer in response to the identification and triggering a search for one or more frequencies of the second priority scheduling mode upon expiration of the mode transition timer. As such, an improved reselection during mode transitions at UE may be achieved.
19 Citations
12 Claims
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1. A method for improved reselection during mode transitions at a user equipment (UE), comprising:
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performing, at the UE, inter-radio access technology (IRAT) cell reselection measurements, wherein the IRAT cell reselection measurements are associated with a cell reselection from a first radio access technology (RAT) to a second RAT; identifying, at the UE, a switching of the UE from an all priority scheduling mode to a high priority scheduling mode or from a high priority scheduling mode to an all priority scheduling mode, wherein the switching is identified while the IRAT cell reselection measurements are in progress, and wherein the switching is based at least on changes in signal quality of a serving cell of the UE or mobility of the UE; initiating, at the UE, a mode transition timer at the UE in response to the identification, wherein the mode transition timer is set to a value between zero and less than a first value when the UE is switching from the all priority scheduling mode to the high priority scheduling mode or zero and less than a second value when the UE is switching from the high priority scheduling mode to the all priority scheduling mode, and wherein the first value is set to a value of Thigher priority search and the second value is set to a value of Kcarrier*Tdetect-UTRA as defined in 3GPP Specifications; and triggering, at the UE, a search for one or more frequencies of the high priority scheduling mode or one or more frequencies of the all priority scheduling mode upon expiration of the mode transition timer. - View Dependent Claims (2, 9)
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3. A user equipment (UE) for improved reselection during mode transitions at the UE, comprising:
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means for performing inter-radio access technology (IRAT) cell reselection measurements at the UE, wherein the IRAT cell reselection measurements are associated with a cell reselection from a first radio access technology (RAT) to a second RAT; means for identifying a switching of the UE from an all priority scheduling mode to a high priority scheduling mode or from a high priority scheduling mode to an all priority scheduling mode, wherein the switching is initiated while the IRAT cell reselection measurements are in progress, and wherein the switching is based at least on changes in signal quality of a serving cell of the UE or mobility of the UE; means for initiating a mode transition timer at the UE in response to the identification, wherein the mode transition timer is set to a value between zero and less than a first value when the UE is for switching from the all priority scheduling mode to the high priority scheduling mode or zero and less than a second value when the UE is switching from the high priority scheduling mode to the all priority scheduling mode, and wherein the first value is set to a value of Thigher priority search and the second value is set to a value of Kcarrier*Tdetect-UTRA as defined in 3GPP Specifications; and means for triggering a search at the UE for one or more frequencies of the high priority scheduling mode or one or more frequencies of the all priority scheduling mode upon expiration of the mode transition timer. - View Dependent Claims (4, 10)
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5. A non-transitory computer readable medium storing computer executable code for improved reselection during mode transitions, comprising:
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code for performing inter-radio access technology (IRAT) cell reselection measurements, at the UE, wherein the IRAT cell reselection measurements are associated with a cell reselection from a first radio access technology (RAT) to a second RAT; ode for identifying a switching of the UE from an all priority scheduling mode to a high priority scheduling mode or from a high priority scheduling mode to an all priority scheduling mode, wherein the switching is initiated while the IRAT cell reselection measurements are in progress, and wherein the switching is based at least on changes in signal quality of a serving cell of the UE or mobility of the UE; code for initiating a mode transition timer at the UE in response to the identification, wherein the mode transition timer is set to a value between zero and less than a first value when the UE is switching from the all priority scheduling mode to the high priority scheduling mode or zero and less than a second value when the UE is switching from the high priority scheduling mode to the all priority scheduling mode, and wherein the first value is set to a value of Thigher priority search and the second value is set to a value of Kcarrier*Tdetect-UTRA as defined in 3GPP Specifications; and code for triggering a search at the UE for one or more frequencies of the high priority scheduling mode or one or more frequencies of the all priority scheduling mode upon expiration of the mode transition timer. - View Dependent Claims (6, 11)
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7. An user equipment (UE) for improved reselection during mode transitions at the UE, comprising:
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a mode switching component to perform inter-radio access technology (IRAT) cell reselection measurements, wherein the IRAT cell reselection measurements are associated with a cell reselection from a first radio access technology (RAT) to a second RAT; the mode switching component further configured to identify a switching of the UE from an all priority scheduling mode to a high priority scheduling mode or from a high priority scheduling mode to an all priority scheduling mode, wherein the identified is initiated while the IRAT cell reselection measurements are in progress, and wherein the switching is based at least on changes in signal quality of a serving cell of the UE or mobility of the UE; a mode transition timer initiating component to initiate a mode transition timer in response to the identification, wherein the mode transition timer is set to a value between zero and less than a first value when the UE is switching from the all priority scheduling mode to the high priority scheduling mode or zero and less than a second value when switching from the high priority scheduling mode to the all priority scheduling mode, and wherein the first value is set to a value of Thigher priority search and the second value is set to a value of Kcarrier*Tdetect-UTRA as defined in 3GPP Specifications; and a frequency search triggering component to trigger a search for one or more frequencies of the high priority scheduling mode or one or more frequencies of the all priority scheduling mode upon expiration of the mode transition timer. - View Dependent Claims (8, 12)
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Specification