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1. 发明申请

US20210250775A1 RADIO FREQUENCY COEXISTENCE MITIGATIONS WITHIN WIRELESS USER EQUIPMENT HANDSETS 有权
公开(公告)号：US20210250775A1
公开(公告)日：2021-08-12
申请号：US17171915
申请日：2021-02-09
申请人： QUALCOMM Incorporated
发明人： Carl HARDIN , Brian Clarke BANISTER , Shrenik PATEL , Michael KOHLMANN , Liang ZHAO , Le Nguyen LUONG , Tevfik YUCEK , Roland RICK , Shriram GURUMOORTHY , Francis NGAI
IPC分类号： H04W16/14 , H04W4/80 , H04W52/36 , H04W52/24
摘要： A user equipment (UE) includes a first communication component configured to use a first frequency band, such as ultra-wide band (UWB), and a second communication component configured to use an intermediate frequency (IF) band that overlaps with the UWB band, such as an IF millimeter wave (mmWave) band. The second communication component conducts an IF signal along an internal signal conduction line that may interfere with UWB processing. A processor of the UE is configured to detect an indication of such interference, and, in response to the indication of interference, control the second communication component to adjust a characteristic of the IF band signal to mitigate the interference, such as by reducing its signal strength. The amount by which the IF band signal strength is reduced may be controlled to achieve a desired tradeoff between various performance metrics, such as power consumption and quality of service.

2. 发明申请

US20210279126A1 EMPTY DATA PACKET HARD ALIGN 有权
公开(公告)号：US20210279126A1
公开(公告)日：2021-09-09
申请号：US16808275
申请日：2020-03-03
申请人： QUALCOMM Incorporated
发明人： Joel LINSKY , Le Nguyen LUONG
IPC分类号： G06F11/10 , H04W28/06 , H04L1/18
摘要： A wireless device is provided that determines a set of expected packets from a second wireless device, each expected packet of the set of expected packets comprising an expected cyclic redundancy check (CRC) of a set of expected CRCs, receives a packet from the second wireless device, the received packet comprising a header and a first CRC, determines whether a second CRC generated based on the header in the received packet matches the first CRC received in the received packet, determines, when the generated second CRC does not match the first CRC received in the received packet, a third CRC of the set of expected CRCs based on the first CRC, and replaces the received header with a header corresponding to the determined third CRC.

3. 发明申请

US20140098913A1 SYSTEM AND METHOD FOR I-Q IMBALANCE CORRECTION 有权
标题翻译：用于I-Q不平衡校正的系统和方法
公开(公告)号：US20140098913A1
公开(公告)日：2014-04-10
申请号：US13647332
申请日：2012-10-08
申请人： QUALCOMM INCORPORATED
发明人： Daniel Jose FERNANDES BARROS , Le Nguyen LUONG , James Young HURT , Yann LY-GAGNON , Paul James HUSTED
IPC分类号： H04B1/10
CPC分类号： H04B1/1036 , G01S19/235 , H03D3/009 , H03J7/04 , H04B1/1027 , H04L27/2647 , H04L27/3809 , H04L27/3863 , H04L2027/003
摘要： Systems and methods are disclosed for compensating I-Q imbalance in a wireless receiver. The receiver may employ a quadrature downconverter configured to receive an RF signal input and output an in-phase component and a quadrature component at an IF, an IF rotation block configured to downconvert the in-phase and quadrature components to baseband and an I-Q correction block configured to compensate for an I-Q imbalance in the received signal, wherein the I-Q correction block is positioned downstream from the IF rotation block in the signal path. Performing the I-Q correction after conversion to baseband may allow the compensation calculations to operate at a reduced digital rate. Similarly, digitally adjusting the gain of the signal prior to I-Q compensation may reduce the number of bits that are manipulated during the compensation process. These features may represent significant efficiencies as compared to I-Q corrections performed at IF.
摘要翻译：公开了用于补偿无线接收机中的I-Q不平衡的系统和方法。接收机可以采用正交下变频器，其被配置为接收RF信号输入并输出IF的同相分量和正交分量，IF旋转块被配置为将同相和正交分量下变频到基带和IQ校正块被配置为补偿接收信号中的IQ不平衡，其中IQ校正块位于信号路径中的IF旋转块的下游。在转换为基带后执行I-Q校正可能允许补偿计算以降低的数字速率运行。类似地，在I-Q补偿之前数字调整信号的增益可以减少在补偿处理期间被操纵的位数。与IF执行的I-Q校正相比，这些特征可能表现出显着的效率。

4. 发明申请

US20230071554A1 ULTRAWIDEBAND RANGE ACCURACY 有权
公开(公告)号：US20230071554A1
公开(公告)日：2023-03-09
申请号：US17470061
申请日：2021-09-09
申请人： QUALCOMM Incorporated
发明人： Xiaoxin ZHANG , Le Nguyen LUONG , Liang ZHAO , Rishabh RAJ , Ravindra CHAUHAN
IPC分类号： G07C9/00 , H04W76/16
摘要： Techniques are provided for improving ranging accuracy of ultrawideband (UWB) devices. An example method for obtaining a distance measurement with a wireless node includes obtaining a first distance measurement using a first radio link, determining a status of a second radio link in response to the first distance measurement being less than a threshold distance, configuring one or more transceiver parameters associated with the second radio link in response to determining the second radio link is utilizing a non-line of sight path, and obtaining a second distance measurement using the second radio link and the one or more transceiver parameters.

5. 发明申请

US20170238328A1 ACQUISITION THRESHOLD BASED ON SIGNAL STRENGTH 审中-公开
公开(公告)号：US20170238328A1
公开(公告)日：2017-08-17
申请号：US15045137
申请日：2016-02-16
申请人： QUALCOMM Incorporated
发明人： Le Nguyen LUONG , RaviKiran GOPALAN
IPC分类号： H04W72/08 , H04L12/26 , H04W4/00
CPC分类号： H04W72/085 , H04B1/713 , H04L7/042 , H04L43/16 , H04W4/80 , H04W56/008
摘要： Systems and methods pertain to operating a receiver of wireless signals such as Bluetooth or Bluetooth Low Energy (BLE) signals. A correlator is provided to correlate a wireless signal received by the receiver with a device identifier corresponding to a wanted device from which the receiver wants to receive wireless signals, to generate a correlator output. An adaptive acquisition threshold generator generates an adaptive acquisition threshold based on a signal strength of the wireless signal, and a comparator is used to determine if the wireless signal is a wanted signal intended for the receiver, based on a comparison of the correlator output with the adaptive acquisition threshold.

6. 发明申请

US20230099551A1 METHOD AND APPARATUS FOR RELATIVE POSITIONING OF A USER EQUIPMENT IN A VEHICLE 有权
公开(公告)号：US20230099551A1
公开(公告)日：2023-03-30
申请号：US17491506
申请日：2021-09-30
申请人： QUALCOMM Incorporated
发明人： Santosh Kumar GUPTA , Shishir GUPTA , Constantinos Steven BEKIS , Liang ZHAO , Le Nguyen LUONG , Cheng-Han WANG
IPC分类号： B60W50/12 , H04M1/72463 , H04W4/48 , H04W64/00
摘要： The relative position of a user equipment (UE) within a vehicle is determined using angular measurements, such as angle of arrival (AOA), and optionally ranging measurements, with respect to a number of wireless transceivers within the vehicle using wideband signals. The relative position of the UE with respect to a personal zone or the steering wheel may be determined based on known positions of the wireless transceivers. If the UE is determined to be within the personal zone, at least one functionality of the UE is restricted to avoid driver distraction and, optionally, the operation autonomous driving of the vehicle adjusted. If the UE is worn on the driver's wrist the relative position of the UE with respect to the steering wheel may be similarly determined and operation of the vehicle modified if the UE is determined to be outside a threshold distance from the steering wheel.

7. 发明申请

US20210306909A1 LOW POWER TECHNIQUES FOR BLUETOOTH LOW ENERGY IN SCANNING STATE 有权
公开(公告)号：US20210306909A1
公开(公告)日：2021-09-30
申请号：US16832425
申请日：2020-03-27
申请人： QUALCOMM Incorporated
发明人： Seyed Mohammad Ehsan HOSSEINI , Le Nguyen LUONG , Eunmo KANG , Dongsik KIM
IPC分类号： H04W28/06 , H04W8/00 , H04W84/18 , H04W48/16 , H04W4/80 , H04W52/02
摘要： This disclosure provides systems, devices, apparatus, and methods, including computer programs encoded on storage media, related to low power techniques for a BLE device during a scanning state. The BLE device is configured to scan for a preamble of a packet while in a first power mode and detect when a bit of the preamble is received. Upon detecting that the bit of the preamble is received, the BLE device switches from the first power mode to a second power having a higher operating power for the BLE device than the first power mode. The switch in power modes occurs while the preamble is being received or immediately after the preamble is received and before an access address of the packet is received. The BLE device, while in the second power mode, then scans for the access address of the packet.

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