-
公开(公告)号：US11889436B2
公开(公告)日：2024-01-30
申请号：US16995658
申请日：2020-08-17
Applicant: QUALCOMM Incorporated
Inventor： Jay King , Alexander Dorosenco , Muhammad Sayed Khairy Abdelghaffar , Joseph Binamira Soriaga , Carl Hardin , Alexandros Manolakos , James Krysl , Michael Allen Kongelf , Krishna Kiran Mukkavilli , Tingfang Ji , Joseph Patrick Burke
IPC: H04W56/00
CPC classification number: H04W56/0005 , H04W56/004 , H04W56/009
Abstract: The transmission and reception group delay in a front end structure of a mobile device may be determined using closed loop calibration. The closed loop may be a near field radiated closed loop between pairs of antennas in an antenna array of the mobile device. The delay based on time of transmission and time of reception may be measured for a plurality of pairs of antennas, from which the transmit and receive group delay within a single path may be determined. The propagation delay of the signal between antennas may be included in the group delay calibration for increased accuracy. In another implementation, a conducted closed loop, e.g., in the transceiver or in a radio frequency switching network may be used to calibrate the group delay. Pre-characterization of the delay caused by components between the closed loop and antennas may be included in the group delay calibration for increased accuracy.
-
公开(公告)号：US20180124716A1
公开(公告)日：2018-05-03
申请号：US15472943
申请日：2017-03-29
Applicant: QUALCOMM Incorporated
Inventor： Sudarsan Krishnan , Andrei Izotov , Carl Hardin , Vijay Chellappa , Li Gao
IPC: H04W52/52
CPC classification number: H04W52/52 , H03F1/00 , H03F1/0272 , H03F1/3247 , H03F3/19 , H03F3/245 , H03F2200/451 , H04L49/109 , H04Q2213/13199
Abstract: A radio frequency (RF) system including: a modem configured to generate a first set of digital bits and to create an analog RF signal from those digital bits; a power amplifier configured to receive the analog RF signal and to amplify the analog RF signal, the power amplifier including an input for a biasing voltage; a feedback loop configured to sample an output of the power amplifier, generate a second set of digital bits corresponding to the first set of digital bits, digitally process the second set of digital bits to determine a linearity characteristic of the power amplifier, and to adjust the biasing voltage in response to determining the linearity characteristic.
-
公开(公告)号：US11856528B2
公开(公告)日：2023-12-26
申请号：US17572102
申请日：2022-01-10
Applicant: QUALCOMM Incorporated
Inventor： Igor Gutman , Robert Zokaim , Oren Matsrafi , Yehezkel Hadid , Ghaith Shabsigh , Rahul Malik , Carl Hardin , Damin Cao , Michael Lee McCloud
IPC: H04W52/36 , H04B1/04 , H04B1/62 , H04W72/044
CPC classification number: H04W52/36 , H04B1/0475 , H04B1/62 , H04W72/0473 , H04B2001/0425
Abstract: Methods, systems, and devices for wireless communications are described. Some wireless communications systems may support adaptation of digital pre-distortion (DPD) coefficients based on a temperature of a user equipment (UE). The UE may determine a power offset value based on a first temperature value associated with a training procedure for the UE, a second temperature value associated with the UE, and a constant value. The training procedure may be associated with multiple sets of coefficients for the UE. The UE may apply the power offset value to a transmission power level for transmission of a message. The UE may determine a set of coefficients of the multiple sets of coefficients based on the training procedure and the power offset value applied to the transmission power level. The UE may apply the coefficients to a DPD engine of the UE to generate the message for transmission at the transmission power level.
-
公开(公告)号：US20230224825A1
公开(公告)日：2023-07-13
申请号：US17572102
申请日：2022-01-10
Applicant: QUALCOMM Incorporated
Inventor： Igor Gutman , Robert Zokaim , Oren Matsrafi , Yehezkel Hadid , Ghaith Shabsigh , Rahul Malik , Carl Hardin , Damin Cao , Michael Lee McCloud
CPC classification number: H04W52/36 , H04B1/62 , H04B1/0475 , H04W72/0473 , H04B2001/0425
Abstract: Methods, systems, and devices for wireless communications are described. Some wireless communications systems may support adaptation of digital pre-distortion (DPD) coefficients based on a temperature of a user equipment (UE). The UE may determine a power offset value based on a first temperature value associated with a training procedure for the UE, a second temperature value associated with the UE, and a constant value. The training procedure may be associated with multiple sets of coefficients for the UE. The UE may apply the power offset value to a transmission power level for transmission of a message. The UE may determine a set of coefficients of the multiple sets of coefficients based on the training procedure and the power offset value applied to the transmission power level. The UE may apply the coefficients to a DPD engine of the UE to generate the message for transmission at the transmission power level.
-
公开(公告)号：US11711120B1
公开(公告)日：2023-07-25
申请号：US17661460
申请日：2022-04-29
Applicant: QUALCOMM Incorporated
Inventor： Alexander Sverdlov , Igor Gutman , Carl Hardin , Michael Lee McCloud , Robert Zokaim
IPC: H04B7/0426 , H04B7/08 , H04B7/06 , H04B7/0456
CPC classification number: H04B7/043 , H04B7/0465 , H04B7/0639 , H04B7/0857
Abstract: Various aspects of the present disclosure generally relate to wireless communication. A wireless communication device may have an apparatus that aligns the non-linearity between transmit chains of the wireless communication device that are driven by the same digital port. The apparatus may adjust an amplification power out or an amplification saturated power to adjust a ratio between the amplification saturated power and the amplification power out for one or more transmit chains of the wireless communication device. The apparatus may adjust the ratios of transmit chains to align the ratios of the transmit chains for more consistent management of non-linear characteristics of the chain components. Numerous other aspects are described.
-
Patent Agency Ranking
公开(公告)号：US11622281B2
公开(公告)日：2023-04-04
申请号：US17171915
申请日：2021-02-09
Applicant: QUALCOMM Incorporated
Inventor： Carl Hardin , Brian Clarke Banister , Shrenik Patel , Michael Kohlmann , Liang Zhao , Le Nguyen Luong , Tevfik Yucek , Roland Rick , Shriram Gurumoorthy , Francis Ngai
Abstract: 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.
-
公开(公告)号：US20220360283A1
公开(公告)日：2022-11-10
申请号：US17316238
申请日：2021-05-10
Applicant: QUALCOMM Incorporated
Inventor： Igor Gutman , Carl Hardin , Yehezkel Hadid , Robert Zokaim
Abstract: Methods, systems, and devices for wireless communications are described. For example, a transmitting wireless device, such as a user equipment or a base station, may apply a first set of digital pre-distortion (DPD) coefficients to a plurality of antenna elements to form a first transmit beam. The wireless device may determine to switch from using the first transmit beam to using a second transmit beam that is different from the first transmit beam and may apply a second set of DPD coefficients to the plurality of antenna elements to form the second transmit beam, where the second set of DPD coefficients is different from the first set of DPD coefficients. The wireless device may transmit signaling using the second transmit beam based at least in part on applying the second set of DPD coefficients.
-
公开(公告)号：US11996873B2
公开(公告)日：2024-05-28
申请号：US18188047
申请日：2023-03-22
Applicant: QUALCOMM Incorporated
Inventor： Igor Gutman , Carl Hardin , Yehezkel Hadid , Robert Zokaim
CPC classification number: H04B1/0475 , H04B7/0617 , H04B7/0639 , H04B2001/0425
Abstract: Methods, systems, and devices for wireless communications are described. For example, a transmitting wireless device, such as a user equipment or a base station, may apply a first set of digital pre-distortion (DPD) coefficients to a plurality of antenna elements to form a first transmit beam. The wireless device may determine to switch from using the first transmit beam to using a second transmit beam that is different from the first transmit beam and may apply a second set of DPD coefficients to the plurality of antenna elements to form the second transmit beam, where the second set of DPD coefficients is different from the first set of DPD coefficients. The wireless device may transmit signaling using the second transmit beam based at least in part on applying the second set of DPD coefficients.
-
公开(公告)号：US11658692B2
公开(公告)日：2023-05-23
申请号：US17316238
申请日：2021-05-10
Applicant: QUALCOMM Incorporated
Inventor： Igor Gutman , Carl Hardin , Yehezkel Hadid , Robert Zokaim
CPC classification number: H04B1/0475 , H04B7/0617 , H04B2001/0425
Abstract: Methods, systems, and devices for wireless communications are described. For example, a transmitting wireless device, such as a user equipment or a base station, may apply a first set of digital pre-distortion (DPD) coefficients to a plurality of antenna elements to form a first transmit beam. The wireless device may determine to switch from using the first transmit beam to using a second transmit beam that is different from the first transmit beam and may apply a second set of DPD coefficients to the plurality of antenna elements to form the second transmit beam, where the second set of DPD coefficients is different from the first set of DPD coefficients. The wireless device may transmit signaling using the second transmit beam based at least in part on applying the second set of DPD coefficients.
-
公开(公告)号：US11502708B2
公开(公告)日：2022-11-15
申请号：US17230111
申请日：2021-04-14
Applicant: QUALCOMM Incorporated
Inventor： Igor Gutman , Yehezkel Hadid , Carl Hardin , Sang-June Park , Mendel Menachem Aizner , Gideon Shlomo Kutz
Abstract: Certain aspects of the present disclosure provide techniques for training a digital pre-distorter (DPD) using real-time over-the-air transmissions and receptions by a user equipment (UE). A method for training the DPD generally includes transmitting a signal, generated by a transmitter front end, via a first port; sampling the signal, received over the air, at a second port; performing signal processing cleaning (e.g., synchronization, linear over-the-air channel estimation and equalization); calculating coefficients for a DPD; and configuring the DPD with the coefficients, for use in digitally pre-distorting sub sequent transmissions.
-
-
-
-
-
-
-
-
-
Search Results
12
records
(took 0.016 seconds)
