EXPLOITING DRX/CDRX PARAMETERS TO CONSERVE POWER DURING AN OBSERVED TIME DIFFERENCE OF ARRIVAL (OTDOA) SESSION
First Claim
1. A method for exploiting discontinuous reception (DRx) parameters to conserve power during an Observed Time Difference of Arrival (OTDOA) measurement session, comprising:
- receiving, at a network server, information related to a DRx configuration associated with a user equipment (UE);
selecting, at the network server, one or more inter-frequency base stations having inter-frequency Positioning Reference Signals (PRS) occasions that coincide with an OFF duration of the DRx configuration associated with the UE; and
transmitting, by the network server to the UE, OTDOA assistance data that includes information related to the inter-frequency PRS occasions that coincide with the OFF duration of the DRx configuration associated with the UE.
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Abstract
Disclosed aspects and embodiments pertain to conserving power usage during an Observed Time Difference of Arrival (OTDOA) measurement session. For example, a server or other network entity may receive information related to a Discontinuous Reception (DRx) or Connected Mode DRx (CDRx) configuration associated with a user equipment (UE) and provide, to the UE, information related to one or more base stations having Positioning Reference Signal (PRS) occasions that coincide with an OFF state associated with the DRx/CDRx configuration. Alternatively and/or additionally, the UE may receive OTDOA assistance information indicating when certain PRS occasions occur and a serving base station or other network entity may provide the UE with a DRx/CDRx configuration having an OFF state that coincides with the PRS occasions. As such, the DRx/CDRx parameters may be exploited to substantially reduce or eliminate measurement gaps and conserve power usage during an OTDOA session.
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Citations
30 Claims
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1. A method for exploiting discontinuous reception (DRx) parameters to conserve power during an Observed Time Difference of Arrival (OTDOA) measurement session, comprising:
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receiving, at a network server, information related to a DRx configuration associated with a user equipment (UE); selecting, at the network server, one or more inter-frequency base stations having inter-frequency Positioning Reference Signals (PRS) occasions that coincide with an OFF duration of the DRx configuration associated with the UE; and transmitting, by the network server to the UE, OTDOA assistance data that includes information related to the inter-frequency PRS occasions that coincide with the OFF duration of the DRx configuration associated with the UE. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. An apparatus, comprising:
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a receiver configured to receive information related to a discontinuous reception (DRx) configuration associated with a user equipment (UE); at least one processor configured to select one or more inter-frequency base stations having inter-frequency Positioning Reference Signals (PRS) occasions that coincide with an OFF duration of the DRx configuration associated with the UE; and a transmitter configured to transmit, to the UE, Observed Time Difference of Arrival (OTDOA) assistance data that includes information related to the inter-frequency PRS occasions that coincide with the OFF duration of the DRx configuration associated with the UE. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
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17. A method for exploiting discontinuous reception (DRx) parameters to conserve power during an Observed Time Difference of Arrival (OTDOA) measurement session, comprising:
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receiving, at a network device serving a user equipment (UE), information related to OTDOA assistance data provided to the UE, wherein the information related to the OTDOA assistance data provided to the UE includes timing associated with one or more inter-frequency Positioning Reference Signals (PRS) occasions; selecting, at the network device, a DRx configuration in which an OFF duration at least partially coincides with the timing associated with the one or more inter-frequency PRS occasions indicated in the OTDOA assistance data; and transmitting, by the network device, one or more parameters related to the selected DRx configuration to the UE such that the one or more inter-frequency PRS occasions are measured during the OFF duration of the DRx configuration. - View Dependent Claims (18, 19, 20, 21, 22, 23)
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24. An apparatus, comprising:
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a receiver configured to receive information related to Observed Time Difference of Arrival (OTDOA) assistance data provided to a user equipment (UE) served by the apparatus, wherein the information related to the OTDOA assistance data provided to the UE includes timing associated with one or more inter-frequency Positioning Reference Signals (PRS) occasions; at least one processor configured to select a discontinuous reception (DRx) configuration in which an OFF duration at least partially coincides with the timing associated with the one or more inter-frequency PRS occasions indicated in the OTDOA assistance data; and a transmitter configured to transmit one or more parameters related to the selected DRx configuration to the UE such that the UE is configured to measure the one or more inter-frequency PRS occasions during the OFF duration of the DRx configuration. - View Dependent Claims (25, 26, 27, 28, 29, 30)
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Specification