Radio-Frequency Front-End Circuit for Location Services and Wireless Communication

    公开(公告)号:US20240380425A1

    公开(公告)日:2024-11-14

    申请号:US18777245

    申请日:2024-07-18

    Applicant: Google LLC

    Abstract: Techniques and apparatuses are described that implement a radio-frequency front-end (RFFE) circuit for location services and wireless communication. In an example aspect, a computing device includes a radio-frequency front-end circuit, which is used to provide location services via a global navigation satellite system and wireless communication via a non-terrestrial network. In one aspect, an architecture of the radio-frequency front-end circuit supports the concurrent reception of signals for location services and wireless communication. This allows location information to be updated for proper timing adjustment during a downlink time interval. At least some components of the radio-frequency front-end circuit have a shared-use and operate on signals that are received for location services as well as signals that are received for wireless communication. In another aspect, the radio-frequency front-end circuit uses a switching circuit to provide a relatively simple and inexpensive means of coexistence management.

    COHERENT FREQUENCY BANDS RECEIVE OPERATION

    公开(公告)号:US20240413961A1

    公开(公告)日:2024-12-12

    申请号:US18702551

    申请日:2021-12-30

    Applicant: Google LLC

    Inventor: Ming Sun Fei He

    Abstract: An example method includes selecting, by a computing device, a plurality of frequency bands for communicating with at least one node of a wireless network, each of the plurality of frequency bands corresponding to a respective communication channel; receiving, by the computing device, a frequency block that encompasses the selected plurality of frequency bands; demodulating, by the computing device and to a baseband domain, the frequency block; and decoding, by the computing device and based on the demodulated frequency block, a respective signal for each of the plurality' of frequency bands.

    Wearable Accessories For Determining Accurate Elevation Information For Navigation

    公开(公告)号:US20230087934A1

    公开(公告)日:2023-03-23

    申请号:US17480763

    申请日:2021-09-21

    Applicant: Google LLC

    Inventor: Ming Sun Fei He

    Abstract: A system and method are provided for data fusion between portable electronic devices and wearable accessories that is used to improve location information, particularly with respect to vertical location. A barometer sensor in a wearable accessory is used to obtain relative accurate height information, and an ultra wide band (UWB) radio is used to determine the distance between the wearable accessory and the portable electronic device. At a second timestamp, a barometer in a wearable device is used to calculate a difference in elevation between the first timestamp and the second timestamp. This measurement, along with a measured distance between the devices, can be used to accurately determine elevation. The wireless accessory and the portable electronic device communicate the obtained height and distance information. Accordingly, accurate navigation signals may be provided, even where multiple levels of roadways overlap, such as in parking garages or complex highway interchanges.

    Concurrent Communication in Multiple TDD Bands

    公开(公告)号:US20210297227A1

    公开(公告)日:2021-09-23

    申请号:US17233075

    申请日:2021-04-16

    Applicant: Google LLC

    Inventor: Ming Sun Fei He

    Abstract: This document describes systems and techniques directed at concurrent communication in multiple time-division duplex (TDD) bands. As new industry standards (e.g., the Fifth Generation New Radio (5G NR) standard) are being implemented, more TDD bands are becoming available for wireless communications. Generally, manufacturers will add additional antenna systems for each TDD band, but this method may become costly and need extra space, which is already limited, within the user device In various aspects, the concurrent communication system includes a radio frequency (RF) modem module configured to operate on multiple TDD bands, which may include bands that are located near each other on the RF spectrum. The concurrent communication system further includes transceiver circuitry with at least one transmission chain and at least four reception chains. The architecture of this system offers an efficient and inexpensive way to communicate on at least two TDD bands concurrently with reduced hardware cost.

    Machine Learning for Predicting Incremental Changes in Session Data

    公开(公告)号:US20240242107A1

    公开(公告)日:2024-07-18

    申请号:US18009439

    申请日:2022-06-24

    Applicant: Google LLC

    CPC classification number: G06N20/00

    Abstract: A computing system and method that can be used for facilitating data processing and system modeling of techniques used to transmit network resources over a communication network. In particular, a machine learning system can execute predictive models for predicting probabilities of user session data based on feature data. For example, the computing system can predict that a user may have a low likelihood of engaging in a particular action (e.g., downloading specified content, completing a transaction, interacting with a specific icon, widget, or application, launching a specific script, or some other specified action) prior to engaging with the network resource but have a high likelihood of engaging in the particular action post engaging with the network resource. In particular, the computing system can provide for generating an incremental label which indicates a probability of how likely a particular user is to change from not engaging in a particular action to engaging in a particular action after engaging with the network resource.

    Adaptive Sounding Reference Signal Mapping for Improved Channel Estimation

    公开(公告)号:US20230421414A1

    公开(公告)日:2023-12-28

    申请号:US18253014

    申请日:2020-12-24

    Applicant: Google LLC

    Inventor: Ming Sun

    CPC classification number: H04L25/0224 H04L5/0051

    Abstract: The present disclosure describes various aspects of adaptive sounding reference signal mapping that a user equipment (UE) implements to improve channel estimation. In aspects, a set of sounding reference signal (SRS) symbols are generated that include at least first and second SRS symbols. An offset for the second SRS symbol is determined based on a difference between a first radio chain and a second radio chain of the UE. The first and second SRS symbols are then mapped to an antenna port of the first radio chain. The UE transmits the first SRS symbol to a base station via the antenna port of the first radio chain and transmits the second SRS symbol to the base station via the antenna port of the first radio chain while the offset is applied to the first radio chain. By so doing, the UE may improve channel estimation for uplink and/or downlink communications.

    Wearable accessories for determining accurate elevation information for navigation

    公开(公告)号:US11933906B2

    公开(公告)日:2024-03-19

    申请号:US17480763

    申请日:2021-09-21

    Applicant: Google LLC

    Inventor: Ming Sun Fei He

    Abstract: A system and method are provided for data fusion between portable electronic devices and wearable accessories that is used to improve location information, particularly with respect to vertical location. A barometer sensor in a wearable accessory is used to obtain relative accurate height information, and an ultra wide band (UWB) radio is used to determine the distance between the wearable accessory and the portable electronic device. At a second timestamp, a barometer in a wearable device is used to calculate a difference in elevation between the first timestamp and the second timestamp. This measurement, along with a measured distance between the devices, can be used to accurately determine elevation. The wireless accessory and the portable electronic device communicate the obtained height and distance information. Accordingly, accurate navigation signals may be provided, even where multiple levels of roadways overlap, such as in parking garages or complex highway interchanges.

    Radio Link Management to Enable Unpaired Receiver Paths of User Equipment

    公开(公告)号:US20230189361A1

    公开(公告)日:2023-06-15

    申请号:US17997233

    申请日:2021-07-14

    Applicant: Google LLC

    Inventor: Ming Sun

    CPC classification number: H04W76/15 H04W8/24 H04W40/248 H04B7/0413 H04B7/0632

    Abstract: The present disclosure describes various aspects of radio link management to enable unpaired receiver paths of user equipment. In some aspects, a modem of a user equipment is coupled with multiple receiver paths that include an unpaired receiver path. To enable use of the unpaired receiver path in various modes of multi-channel communication, a radio link manager of the user equipment modifies configuration information of the modem to add a nonexistent receiver path to a set of receiver path parameters for a frequency band in which the unpaired receiver path is capable of operating. Along with adding the nonexistent receiver path, the radio link manager may also modify the receiver path parameters to enable the unpaired receiver path for the frequency band. The nonexistent receiver path and unpaired receiver path are then exposed for use by the modem to implement one or more multi-channel receive modes for the frequency band.

    Concurrent communication in multiple TDD bands

    公开(公告)号:US11677535B2

    公开(公告)日:2023-06-13

    申请号:US17233075

    申请日:2021-04-16

    Applicant: Google LLC

    Inventor: Ming Sun Fei He

    CPC classification number: H04L5/26 H04B1/44 H04L5/14

    Abstract: This document describes systems and techniques directed at concurrent communication in multiple time-division duplex (TDD) bands. As new industry standards (e.g., the Fifth Generation New Radio (5G NR) standard) are being implemented, more TDD bands are becoming available for wireless communications. Generally, manufacturers will add additional antenna systems for each TDD band, but this method may become costly and need extra space, which is already limited, within the user device In various aspects, the concurrent communication system includes a radio frequency (RF) modem module configured to operate on multiple TDD bands, which may include bands that are located near each other on the RF spectrum. The concurrent communication system further includes transceiver circuitry with at least one transmission chain and at least four reception chains. The architecture of this system offers an efficient and inexpensive way to communicate on at least two TDD bands concurrently with reduced hardware cost.

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