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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.
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公开(公告)号：US11476998B2
公开(公告)日：2022-10-18
申请号：US16937833
申请日：2020-07-24
Applicant: QUALCOMM Incorporated
Inventor： Igor Gutman , Shay Landis , Gideon Shlomo Kutz , Ran Berliner , Alexandros Manolakos , Ariel Yaakov Sagi , Guy Wolf , Sharon Levy
Abstract: Methods, systems, and devices for wireless communication are described. Generally, the described techniques provide for efficiently reporting channel state feedback for a set of subbands. As an example, a user equipment (UE) may receive a set of reference signals on the set of subbands and determine a respective channel quality indicator (CQI) index for each of the set of subbands based on the reference signals. The UE may then transmit indications of CQI indices for different subbands of the set using variable length indications, such as indications that include different numbers of bits. Since, in some examples, a small length or number of bits may be allocated for reporting CQI indices with a high probability of being reported, overhead in a wireless communications system may be reduced.
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公开(公告)号：US11444733B2
公开(公告)日：2022-09-13
申请号：US16942223
申请日：2020-07-29
Applicant: QUALCOMM Incorporated
Inventor： Sharon Levy , Assaf Touboul , Guy Wolf , Igor Gutman
Abstract: Methods, systems, and devices for wireless communications are described. Some systems may support digital post-distortion (DPoD) processing at a base station. In some such systems, a user equipment (UE) may process a data message for transmission, where a resulting signal associated with the data message includes non-linear characteristics that are handled by DPoD on the receiver-side. The non-linear characteristics may cause the signal to leak into out-of-band (OOB) resources, potentially resulting in interference. In some examples, the UE may transmit the data message to the base station in a multi-user system. To support mitigation of non-linear interference on signaling by other UEs, the UE may additionally transmit pilot signals in OOB resources (e.g., in addition to in-band resources) where the non-linearity may be expected to negatively affect other communications. The base station may use the OOB pilot signals to perform channel estimation and interference mitigation.
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公开(公告)号：US11265881B2
公开(公告)日：2022-03-01
申请号：US16668217
申请日：2019-10-30
Applicant: QUALCOMM Incorporated
Inventor： Michael Levitsky , Parisa Cheraghi , Hung Dinh Ly , Heechoon Lee , Igor Gutman
Abstract: Techniques for implicitly configuring resources for radio link monitoring or beam failure detection. An example method generally includes identifying that RLM resources or BFD resources are configured implicitly by at least in part: obtaining TCI states, for PDDCH CORESETs, obtaining an indication that at least one of the TCI states is activated to become an active TCI state of the PDCCH CORESETs, identifying one or more CSI-RS resources configured in the at least one of active TCI states of the PDCCH CORESETs, and if the UE does not support RLM or BFD based on the CSI-RS or the one or more CSI-RS resources are AP or SP, determining a SS block for RLM or BFD that has a QCL relationship with the one or more CSI-RS resources of the at least one of active TCI states; and performing RLM or BFD based on the SS block.
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公开(公告)号：US11245428B2
公开(公告)日：2022-02-08
申请号：US16817338
申请日：2020-03-12
Applicant: QUALCOMM Incorporated
Inventor： Igor Gutman , Michael Levitsky , Assaf Touboul , Ronen Shaked
Abstract: This disclosure provides systems, devices, apparatus and methods, including computer programs encoded on storage media, for a DPD training procedure. A base station may transmit, for a plurality of iterations, a signal to at least one UE through a plurality of transmit chains and with application of DPD. The signal transmitted for each iteration may be transmitted with a BW that extends over a plurality of subcarriers and includes pilots extending over a BW subset that increases in subcarrier size for each iteration. The base station may receive, for each iteration, feedback from the at least one UE based on the transmitted signal and apply DPD to each of the plurality of transmit chains based on the feedback. Accordingly, the base station may transmit to one or more UEs through the plurality of transmit chains and with application of the DPD pilot signals that extend over the entire BW.
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Patent Agency Ranking
76.发明授权公开(公告)号：US11184069B2
公开(公告)日：2021-11-23
申请号：US16946684
申请日：2020-07-01
Applicant: QUALCOMM Incorporated
Inventor： Shay Landis , Igor Gutman , Ran Berliner , Gideon Shlomo Kutz , Assaf Touboul
IPC: H04B7/06 , H04B17/318 , H04W24/08 , H04L5/00
Abstract: In some aspects, a UE may select a first type of antenna for communication with a base station based at least in part on a beam management procedure that uses an RSRP parameter determined using a downlink reference signal associated with a single antenna port; measure a CSI-RS resource for CSF, associated with multiple antenna ports, using a second type of antenna and after selecting the first type of antenna; compare a first spectral efficiency parameter associated with communicating using the first type of antenna and a second spectral efficiency parameter determined based at least in part on measuring the CSI-RS resource for CSF using the second type of antenna; and select one of the first type of antenna or the second type of antenna for subsequent communication with the base station based at least in part on comparing the first spectral efficiency parameter and the second spectral efficiency parameter.
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公开(公告)号：US20210120560A1
公开(公告)日：2021-04-22
申请号：US16659346
申请日：2019-10-21
Applicant: QUALCOMM Incorporated
Inventor： Gideon Shlomo Kutz , David Yunusov , Tal Oved , Shay Landis , Igor Gutman , Ran Berliner
Abstract: Methods, systems, and devices for wireless communications are described. In some systems, a user equipment (UE) may monitor sets of decoding candidates over a search space in each monitoring occasion to detect downlink control transmissions. Such a monitoring process may be resource intensive. To reduce the processing power involved in monitoring the control channel, a UE may measure resources associated with the downlink control channel to obtain a quality metric. The UE may compare the quality metric to one or more thresholds and may perform a decoding process on a set of configured decoding candidates for the downlink control channel based on the comparing. In some cases, if the channel quality is relatively good, the UE may perform a list decoding process using a list size less than a maximum list size or may perform partial data tone processing to reduce the processing complexity for some of the decoding candidates.
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公开(公告)号：US20210105046A1
公开(公告)日：2021-04-08
申请号：US16592666
申请日：2019-10-03
Applicant: QUALCOMM Incorporated
Inventor： Igor Gutman , Gideon Shlomo Kutz , Ronen Greenberger , Assaf Touboul
IPC: H04B7/0408 , H04L5/00 , H04W72/08 , H04W72/02
Abstract: Methods, systems, and devices for wireless communications are described. A wireless device may receive, using a first receive port, a first signal within a first frequency band, where the first receive port may be associated with a first receive beam. The wireless device may also receive, using a second receive port, a second signal within the first frequency band concurrently with receiving the first signal, where the second receive port may be associated with a second receive beam. After receiving the first and second signals, the wireless device may process both signals. Processing the signals may include decoding both of the signals, measuring both of the signals, and/or decoding one of the signals and measuring the other of the signals. To support concurrent reception over multiple receive beams within a single frequency band, the wireless device may employ an idle antenna panel and corresponding receive ports.
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公开(公告)号：US20210050981A1
公开(公告)日：2021-02-18
申请号：US16937833
申请日：2020-07-24
Applicant: QUALCOMM Incorporated
Inventor： Igor Gutman , Shay Landis , Gideon Shlomo Kutz , Ran Berliner , Alexandros Manolakos , Ariel Yaakov Sagi , Guy Wolf , Sharon Levy
Abstract: Methods, systems, and devices for wireless communication are described. Generally, the described techniques provide for efficiently reporting channel state feedback for a set of subbands. As an example, a user equipment (UE) may receive a set of reference signals on the set of subbands and determine a respective channel quality indicator (CQI) index for each of the set of subbands based on the reference signals. The UE may then transmit indications of CQI indices for different subbands of the set using variable length indications, such as indications that include different numbers of bits. Since, in some examples, a small length or number of bits may be allocated for reporting CQI indices with a high probability of being reported, overhead in a wireless communications system may be reduced.
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公开(公告)号：US10348341B2
公开(公告)日：2019-07-09
申请号：US15940258
申请日：2018-03-29
Applicant: QUALCOMM Incorporated
Inventor： Haim Mendel Weissman , Igor Gutman , Joseph Patrick Burke , Vijay Chellappa , Sumit Verma , Paul Draxler
IPC: H04L27/38 , H04B1/04 , H04B17/23 , H04B17/24 , H04B17/309 , H04B17/354 , H04B17/373 , H04L5/00
Abstract: Systems and methods for providing indications about the TX RF non-linear impairments are disclosed. In accordance with some implementations, a first device (UE or base station) estimates EVM indications for the signal and determines if the EVM indications is above a threshold. The first device may transmit the estimated TX non-linearity indications math as AM-AM, AM-PM, Volterra coefficients, and/or other performance metrics to a second device, that transmitted the signal, when it is determined that the EVM indications is above the threshold. Systems and methods for wireless communication impairment correction are also disclosed wherein, in accordance with some implementations, a first device receives estimated TX non-linearity indications such as AM-AM, AM-PM, and/or Volterra coefficients from a second device and performs non-linear correction of a transmit signal for the second receiver device based at least in part on the EVM indications. Other aspects, embodiments, and features are also claimed and described.
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