Almost-blank subframe-based gapless inter-frequency positioning reference signal measurement in carrier aggregation mode

    公开(公告)号:US10892866B2

    公开(公告)日:2021-01-12

    申请号:US16035570

    申请日:2018-07-13

    Abstract: In an aspect, to perform inter-frequency measurements by a user equipment (UE) in a carrier aggregation mode, the UE receives assistance data identifying one or more reference signal occasions for one or more neighbor cells, receives information identifying one or more subframes during which the one or more neighbor cells do not carry data transmissions, identifies, for a first reference signal occasion of the one or more reference signal occasions, a first subframe of the one or more subframes that overlaps the first reference signal occasion, tunes, during the first subframe, a first active carrier receiver of a plurality of active carrier receivers away from a first frequency on which the first subframe is transmitted to a second frequency on which the first reference signal occasion is transmitted, and measures, by the first active carrier receiver, the first reference signal occasion on the second frequency during the first subframe.

    Opportunistic signal reception for mobile device position location estimation

    公开(公告)号:US10827300B2

    公开(公告)日:2020-11-03

    申请号:US16676782

    申请日:2019-11-07

    Abstract: Techniques are provided to initiate signal transmissions for possible opportunistic reception by a mobile device, and/or to initiate opportunistic reception of signal transmissions for use in mobile device position location estimation. For example, a mobile device may use assistance data to identify a first signal to be transmitted over a first frequency band and a second signal to be transmitted over a second frequency band during a specific period of time. At least a portion of the second frequency band may be outside of the first frequency band. The mobile device subsequently attempts to opportunistically receive at least the first signal and the second signal via a receiver tuned to a reception frequency band that encompasses at least the first frequency band and the second frequency band. The mobile device may then process the opportunistically received signals to obtain measurements corresponding to at least the first and second signals.

    Optimized positioning method for mobile devices

    公开(公告)号:US10652691B2

    公开(公告)日:2020-05-12

    申请号:US16041132

    申请日:2018-07-20

    Abstract: Techniques for determining a position of a mobile device are provided. A method according to these techniques includes obtaining assistance data comprising information for cells associated with a plurality of wireless transmitters of a wireless communications network based on the coarse location of the mobile device, selecting a plurality of the cells from the assistance data, wherein selecting the plurality of cells includes identifying sets of colocated cells and selecting one cell from each of the colocated sets of cells; measuring signals from the plurality of cells to generate positioning signal measurements; and sending the positioning signal measurements to a location server. A colocated set of cells may include a narrowband cell and a non-narrowband cell, and the narrowband wireless cell may comprise a narrowband Internet of Things (NB-IoT) cell and a non-narrowband cell colocated with the NB-IoT cell at an Evolved Node B (eNodeB).

    Method and/or system for scheduling multiple receive chains

    公开(公告)号:US10334527B2

    公开(公告)日:2019-06-25

    申请号:US15675495

    申请日:2017-08-11

    Abstract: Disclosed are devices and processes for processing portions of a downlink signal using multiple receive chains. In one implementation, while message traffic is received at two or more receive chains of a receiver device, an inactivity timing may be initiated following a most recent activity event at the receiver device. Responsive to a request to acquire a portion of a downlink signal at the receiver device following initiation of the inactivity timer, at least one of the two or more receive chains may be scheduled to acquire the portion of the downlink signal. Other, unscheduled receive chains may be transitioned to a lower power state upon expiration of the inactivity timer.

    Dynamic measurement gap configuration for inter-frequency positioning measurements

    公开(公告)号:US10285156B2

    公开(公告)日:2019-05-07

    申请号:US15482813

    申请日:2017-04-09

    Abstract: A method for performing inter-frequency positioning measurements on positioning signals periodically transmitted by at least some of a plurality of cells in a wireless communication network is provided. The method includes receiving, at a mobile device, assistance data that identifies a first neighbor cell the plurality of cells, where the first neighbor cell transmits a first positioning signal. The method also includes obtaining a first cell property of the first neighbor cell. The mobile device then adjusts a duration of a first measurement gap in response to the first cell property. In one aspect, the first measurement gap corresponds to a time period during which the mobile device is to perform positioning measurements of the first positioning signal.

    Mobile device position determination using non-dedicated-frequency nodes

    公开(公告)号:US10154453B2

    公开(公告)日:2018-12-11

    申请号:US15493418

    申请日:2017-04-21

    Abstract: A method includes: receiving, at a mobile device configured for communication using a communication protocol associated with a dedicated frequency band, a first inbound signal from a first node, the first inbound signal having a format in accordance with the communication protocol and having a first frequency that is outside the dedicated frequency band; receiving a second inbound signal, from a second node, having a same format in accordance with the communication protocol as the first inbound signal and having a second frequency in the dedicated frequency band; determining location information for the first node using the first inbound signal; and sending an outbound signal to a location server, the outbound signal including the location information for the first node and a node identifier of the second node, the outbound signal being formatted according to the communication protocol and having a frequency in the dedicated frequency band.

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