公开(公告)号：US11374625B2

公开(公告)日：2022-06-28

申请号：US16575313

申请日：2019-09-18

Applicant: QUALCOMM Incorporated

Inventor： Parisa Cheraghi ,  Ahmed Elshafie ,  Alexei Yurievitch Gorokhov

IPC: H04B7/0408 ,  H04B7/0456 ,  H04B7/06 ,  H04B7/08

Abstract: Wireless devices are adapted to facilitate beamforming communications in wireless networks. A wireless device may identify a first beam group with a number of beams equal to a maximum number of allowed beams, and a second beam group with a number of beams less than the maximum number of allowed beams. Channel statistics may be estimated for each of the first beam group and the second beam group, and the second beam group may be selected for communications when the second beam group is determined to have at least substantially equal or greater channel statistics compared to the first beam group. Other aspects, embodiments, and features are also included.

公开(公告)号：US20220200751A1

公开(公告)日：2022-06-23

申请号：US17455194

申请日：2021-11-16

Applicant: QUALCOMM Incorporated

Inventor： Qunfeng He ,  Arvind Vardarajan Santhanam ,  Aamod Khandekar ,  Alexei Yurievitch Gorokhov

IPC: H04L5/00 ,  H04W24/10 ,  H04W24/08

Abstract: Apparatus, methods, and computer program products for serving cell measurement based on CSI-RS RRM are provided. An example apparatus may transmit, to a base station, an indication indicating support for reporting one or more serving cell channel state information reference signal (CSI-RS) radio resource management (RRM) measurements independent of non-serving cell CSI-RS RRM measurements. The example apparatus may receive, from the base station, a configuration of layer 3 measurement resources. The example apparatus may perform, based on the configuration of the layer 3 measurement resources, the one or more serving cell CSI-RS RRM measurements. The example apparatus may transmit, to the base station, the one or more serving cell CSI-RS RRM measurements for a serving cell.

公开(公告)号：US20220182198A1

公开(公告)日：2022-06-09

申请号：US17111916

申请日：2020-12-04

Applicant: QUALCOMM Incorporated

Inventor： James Francis Geekie ,  Mahbod Ghelichi ,  Chun-Hao Hsu ,  Zae Yong Choi ,  Yung-Yih Jian ,  Alexei Yurievitch Gorokhov

IPC: H04L5/00 ,  H04L1/00 ,  H04B7/06

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may be configured to receive a first configuration indicating for the UE to communicate with the base station using a set of receive ports. The UE may transmit, according to the first configuration in a first time interval associated with a first power state of the UE, sounding reference signals (SRSs) on a set of transmit ports corresponding to the set of receive ports. The UE may then communicate using less than all of the set of transmit ports for the SRSs based on determining to operate in a reduced power state. The UE may then receive, based on communicating using less than all of the set of transmit ports for the SRSs, a second configuration indicating for the UE to communicate with the base station using a first subset of receive ports.

公开(公告)号：US11310740B2

公开(公告)日：2022-04-19

申请号：US15831251

申请日：2017-12-04

Applicant: QUALCOMM Incorporated

Inventor： Peter Pui Lok Ang ,  Amir Aminzadeh Gohari ,  Alexei Yurievitch Gorokhov ,  Raghu Narayan Challa ,  Tingfang Ji ,  Krishna Kiran Mukkavilli ,  Ravi Agarwal ,  Joseph Binamira Soriaga ,  Hao Xu

IPC: H04W52/02 ,  H04W76/28 ,  H04W72/04 ,  H04W88/02 ,  H04W88/08

Abstract: Systems and method of embodiments herein operate to conserve battery power of user equipment (UE). Embodiments determine whether waking up a UE receiver would be beneficial and based on the determination, the UE either wakes up the receiver or returns to sleep. Embodiments determine whether to wake up the receiver by performing pre-wake up (PWU) operation which either wakes up the receiver in a low power mode or wakes up the UE's wake up receiver. It may be determined whether a wake up (WU) signal is received during a PWU stage. If a WU signal is received during the PWU stage the UE may perform a full wake up of the receiver. If a WU signal is not received the UE may return to idle mode. In embodiments, WU (Wake Up) DRX cycles are supplemented with a Full DRX (Discontinuous Reception) cycle.

公开(公告)号：US20220104156A1

公开(公告)日：2022-03-31

申请号：US17449449

申请日：2021-09-29

Applicant: QUALCOMM Incorporated

Inventor： Yongjun Kwak ,  Tingfang Ji ,  Juan Montojo ,  Peter Gaal ,  Hwan Joon Kwon ,  Krishna Kiran Mukkavilli ,  Alexei Yurievitch Gorokhov

IPC: H04W56/00 ,  H04W72/04 ,  H04W74/08 ,  H04L27/26

Abstract: An apparatus for wireless communications includes a processor and a memory that includes instructions. The one or more processors are configured to execute the instructions to control reception, from a base station, of a first downlink signal using a first bandwidth amount that is based on a first frequency range associated with a particular signal transmitted by the base station. The one or more processors are further configured to execute the instructions to initiate transmission, to the base station, of a first uplink signal using a second bandwidth amount. The second bandwidth amount is less than the first bandwidth amount, and the second bandwidth amount is based on a second frequency range associated with an uplink channel.

公开(公告)号：US11283540B2

公开(公告)日：2022-03-22

申请号：US16151125

申请日：2018-10-03

Applicant: QUALCOMM Incorporated

Inventor： Bilal Sadiq ,  Muhammad Nazmul Islam ,  Navid Abedini ,  Peter Gaal ,  Alexei Yurievitch Gorokhov

IPC: H04L1/00 ,  H04L5/00 ,  H04W76/11 ,  H04W72/04

Abstract: Aspects herein relate to inter-cell interference randomization between two or more cells. For example, a network entity may determine a cell identifier associated with the network entity and perform at least one of an interleaving, rate-matching, or resource element mapping on at least one codeword based on the cell identifier. The network entity may further communicate with a user equipment (UE) in accordance with performing at least one of the interleaving, rate-matching, or resource element mapping on the at least one codeword. In another example, a UE may receive a message from a network entity on a communication channel and identify a cell identifier associated with the network entity. The UE may further perform at least one of a de-interleaving, de-rate-matching, or resource element de-mapping on the message based on the cell identifier.

公开(公告)号：US11265070B2

公开(公告)日：2022-03-01

申请号：US16749575

申请日：2020-01-22

Applicant: QUALCOMM Incorporated

Inventor： Parisa Cheraghi ,  Veljko Boljanovic ,  Anas Tom ,  Alexei Yurievitch Gorokhov

IPC: H04B7/06 ,  H04B7/08 ,  H04B7/0456 ,  H04L27/26 ,  H04B17/318 ,  H04L5/00

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may perform a digital simulation to determine a precoding matrix indicator (PMI) associated with a digital reception beam. A base station may send, to the UE, a reference signal. The UE may perform a coarse beam search on the reference signal using non-oversampled digital reception beams. The UE may measure the signal strength of the reference signal for each of the non-oversampled digital reception beams and select the non-oversampled digital reception beam with the strongest signal. The UE may perform a refined beam search procedure on the selected beam by using a set of oversampled digital reception beams which correspond to the selected non-oversampled digital reception beam. The UE may determine the PMI associated with the strongest oversampled digital reception beam and send the PMI in a report to the base station.

公开(公告)号：US11044668B2

公开(公告)日：2021-06-22

申请号：US16684965

申请日：2019-11-15

Applicant: QUALCOMM Incorporated

Inventor： Heechoon Lee ,  Yang Yang ,  Tingfang Ji ,  Alexei Yurievitch Gorokhov

IPC: H04W52/02 ,  H04W72/04 ,  H04L5/00

Abstract: Tracking reference signal designs for deployments without continuous reference signal transmission are described. The tracking reference signals may be extended in the frequency domain from a synchronization signal block and may occupy a subset or all of the symbol periods of the synchronization signal block. The tracking reference signals may have the same subcarrier spacing as synchronization signals and may be punctured in the frequency domain. Alternatively, the tracking reference signals may include common control reference signals transmitted periodically with paired reference signals in a data channel. The common control reference signals and paired reference signals may be transmitted regardless of the presence of control or data. For improved tracking after a transition to a connected mode or a long discontinuous reception (DRX) cycle, a slot including tracking reference signals may be repeated or an additional tracking reference signal pattern may be transmitted.

公开(公告)号：US11013019B2

公开(公告)日：2021-05-18

申请号：US16454828

申请日：2019-06-27

Applicant: QUALCOMM Incorporated

Inventor： Rahul Malik ,  Jong Hyeon Park ,  Udara Fernando ,  Alexei Yurievitch Gorokhov ,  Nan Zhang ,  Junsheng Han ,  Scott Hoover ,  Ruhua He

IPC: H04W72/12 ,  H04W76/27 ,  H04W74/08 ,  H04W56/00 ,  H04W72/04 ,  H04L27/36 ,  H04W76/28 ,  H04W68/00 ,  H04W24/10

Abstract: Methods, systems, and devices for wireless communications are described. In some systems, a user equipment (UE) may perform calibration of a transceiver chain to maintain or improve operation of a device or comply with legal or protocol requirements. The UE may receive one or more wireless signals indicating a first set of resources where the first device is scheduled to transmit or receive communications. The UE may calibrate a wireless transceiver chain of the first device in a second set of resources. The second set of resources excludes the first set of resources and includes at least a portion of a third set of resources. The third set of resources are resource in which the first device has an option to transmit or receive communications based on a protocol configuration.

公开(公告)号：US10993254B2

公开(公告)日：2021-04-27

申请号：US16273564

申请日：2019-02-12

Applicant: QUALCOMM Incorporated

Inventor： Peter Pui Lok Ang ,  Peter Gaal ,  Wanshi Chen ,  Alexei Yurievitch Gorokhov ,  Jing Sun ,  Joseph Binamira Soriaga ,  Heechoon Lee

IPC: H04W4/00 ,  H04W72/12 ,  H04L5/00 ,  H04W28/06 ,  H04W72/04

Abstract: Different sets of downlink control information (DCI) fields may be configured for DCI that includes an indication to trigger bandwidth part switching at a user equipment (UE). For example, a UE may receive DCI that triggers the UE to switch operation from a first bandwidth part to a second bandwidth part. The UE may also identify a set of transformable DCI fields and a set of non-transformable DCI fields within the DCI. The UE may then determine updated content of the DCI for application to the second bandwidth part based on whether DCI fields are included in the set of transformable or the set of non-transformable fields. In some cases, the UE may identify a null assignment in the received DCI and may switch its operation from the first bandwidth part to the second bandwidth part based on the null assignment.