Dynamic RAT selection
First Claim
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1. A method, comprising:
- by a user equipment device (UE) comprising at least one antenna, at least one radio coupled to the at least one antenna for performing wireless cellular communications with a cellular network, and at least one processing element coupled to the at least one radio, wherein the UE is connected to a network using a first radio access technology (RAT), the method comprising;
determining a first resource requirement for communication on the network using the first RAT and a second resource requirement for communication on the network using a second RAT;
triggering a re-selection to the second RAT in response to the UE determining that the second RAT is preferred over the first RAT based, at least in part, on a comparison of the first and second resource requirements; and
based on a determination that the attempt to reselect to the second RAT has failed;
incrementing a reattempt counter;
determining whether the reattempt counter exceeds a predetermined threshold;
reattempting reselection to the second RAT based on determining that the reattempt counter does not exceed the predetermined threshold; and
continuing communication with the network using the first RAT based on determining that the reattempt counter exceeds the predetermined threshold.
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Abstract
According to techniques described herein, a UE (which may be link budget limited) may be connected to a network using a first RAT. The UE may be configured to determine a first resource requirement for communication on the network using the first RAT and a second resource requirement for communication on the network using a second RAT. The UE may be further configured to trigger a re-selection to the second RAT in response to the UE determining that the second RAT is preferred over the first RAT based, at least in part, on a comparison of the first and second resource requirements.
20 Citations
20 Claims
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1. A method, comprising:
by a user equipment device (UE) comprising at least one antenna, at least one radio coupled to the at least one antenna for performing wireless cellular communications with a cellular network, and at least one processing element coupled to the at least one radio, wherein the UE is connected to a network using a first radio access technology (RAT), the method comprising; determining a first resource requirement for communication on the network using the first RAT and a second resource requirement for communication on the network using a second RAT; triggering a re-selection to the second RAT in response to the UE determining that the second RAT is preferred over the first RAT based, at least in part, on a comparison of the first and second resource requirements; and based on a determination that the attempt to reselect to the second RAT has failed; incrementing a reattempt counter; determining whether the reattempt counter exceeds a predetermined threshold; reattempting reselection to the second RAT based on determining that the reattempt counter does not exceed the predetermined threshold; and continuing communication with the network using the first RAT based on determining that the reattempt counter exceeds the predetermined threshold. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. An apparatus configured for implementation within a user equipment (UE), comprising:
one or more processing elements configured to cause the UE to; determine a first resource requirement for communication on a network using a first radio access technology (RAT) and a second resource requirement for communication on the network using a second RAT; trigger a re-selection to the second RAT in response to the UE determining that the second RAT is preferred over the first RAT based, at least in part, on a comparison of the first and second resource requirements; and wherein, based on a determination that the attempt to reselect to the second RAT has failed, the one or more processing elements are further configured to cause the UE to; increment a reattempt counter; determine whether the reattempt counter exceeds a predetermined threshold; reattempt reselection to the second RAT based on determining that the reattempt counter does not exceed the predetermined threshold; and continue communication with the network using the first RAT based on determining that the reattempt counter exceeds the predetermined threshold. - View Dependent Claims (9, 10, 11, 12)
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13. A user equipment (UE), comprising:
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at least one antenna; at least one radio coupled to the at least one antenna for performing wireless cellular communications with a cellular network; and at least one processing element coupled to the at least one radio, wherein the UE is connected to a network using a first radio access technology (RAT), wherein the UE is configured to; determine a first resource requirement for communication on the network using the first RAT and a second resource requirement for communication on the network using a second RAT; trigger a re-selection to the second RAT in response to the UE determining that the second RAT is preferred over the first RAT based, at least in part, on a comparison of the first and second resource requirements; and based on a determination that the attempt to reselect to the second RAT has failed; increment a reattempt counter; determine whether the reattempt counter exceeds a predetermined threshold; reattempt reselection to the second RAT based on determining that the reattempt counter does not exceed the predetermined threshold; and continue communication with the network using the first RAT based on determining that the reattempt counter exceeds the predetermined threshold. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20)
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Specification