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公开(公告)号：US11147072B2
公开(公告)日：2021-10-12
申请号：US16584649
申请日：2019-09-26
Applicant: QUALCOMM incorporated
Abstract: Methods, systems, and devices for wireless communications are described. In some cases, devices such as band limited (BL) or coverage enhancement (CE) user equipment (UE) having limited transmitting and receiving capability may operate using a subset of a system bandwidth of a carrier (e.g., narrowbands). To support frequency hopping or frequency diversity in transmissions, for example, such devices may utilize retuning when a resource allocation moves from a first narrowband to a second narrowband. Retuning, however, may create challenges when transmitting and receiving capability is limited. Aspects of this disclosure may support a flexible starting physical resource block (PRB) for indicating new resource allocations for BL or CE UEs. In some aspects, a UE is disclosed which may retune between consecutive transmission time intervals (TTIs) or subframes, for example, from a first tuning band to a second tuning band (e.g., a newly defined retuning narrowband).
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公开(公告)号：US11116002B2
公开(公告)日：2021-09-07
申请号：US16784803
申请日：2020-02-07
Applicant: QUALCOMM Incorporated
Inventor： Le Liu , Alberto Rico Alvarino , Raghavendra Shyam Ananda
Abstract: Some techniques and apparatuses described herein provide for the determination of a gap for a scheduled communication involving multiple, different TBs. For example, some techniques and apparatuses described herein provide for the determination of a gap between two or more PDSCHs that are scheduled by a same DCI based at least in part on a UE capability, such as a processing time or a processing mode. Some techniques and apparatuses described herein provide for the determination of a gap between a last PDSCH and a next PDCCH based at least in part on the UE capability. The gap(s) may permit the UE to successfully receive and/or decode multiple PDSCHs and/or PDCCHs in view of the limitations imposed by the UE's processing time or processing mode. In this way, efficiency of PDSCH/PDCCH resource utilization may be improved, the likelihood of a failed PDCCH transmission is reduced, and network efficiency is improved.
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公开(公告)号：US20210235407A1
公开(公告)日：2021-07-29
申请号：US17152603
申请日：2021-01-19
Applicant: QUALCOMM Incorporated
Inventor： Xiaoxia Zhang , Alberto Rico Alvarino , Le Liu , Lorenzo Ferrari , Srinivas Yerramalli , Taesang Yoo
Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may be configured with a set of parameters to determine a valid timing advance (TA) to transmit data using preconfigured uplink resources (PUR) during an idle or inactive mode. In some cases, the parameters are one or more TA commands and one or more conditions associated with each TA command. The UE may identify the current condition of the UE and determine whether the current condition of the UE matches one of indicated conditions. The UE may select a TA command based on finding a match and use the TA command to transmit an uplink PUR transmission. Additionally or alternatively, the parameters may be neural network parameters that indicate a neural network model that the UE may use to determine a TA command associated with a valid TA based on the current condition of the UE.
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公开(公告)号：US20210136693A1
公开(公告)日：2021-05-06
申请号：US17086062
申请日：2020-10-30
Applicant: QUALCOMM Incorporated
Inventor： Xiaoxia Zhang , Jing Sun , Le Liu , Alberto Rico Alvarino , Peter Gaal , Tao Luo
IPC: H04W52/02 , H04W76/15 , H04B7/0413
Abstract: Methods, systems, and devices for wireless communications are described. A method for wireless communication at a user equipment (UE) may include: receiving a multicast bandwidth part configuration for multicast communications between a base station and the UE, where the multicast bandwidth part configuration includes a maximum number of multiple-input, multiple-output layers to be used for the multicast communications; establishing a multicast link with the base station for multicast communications; determining to use a reduced number of antennas for multicast reception than the number of antennas used for unicast reception, or determining that the UE is able to decode the multicast communications prior to a remaining portion of the multicast communications; and receiving the multicast communications via the reduced number of antennas, or reducing the radio frequency power prior to completion of a number of repetitions or retransmissions of the multicast communications.
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公开(公告)号：US10980044B2
公开(公告)日：2021-04-13
申请号：US16507286
申请日：2019-07-10
Applicant: QUALCOMM Incorporated
Inventor： Alberto Rico Alvarino , Le Liu
Abstract: Methods, systems, and devices for wireless communications are described for identifying a modulation and coding scheme (MCS) independently of a channel quality indicator (CQI) table that is configured at a user equipment (UE). A rate matching parameter may be determined based on one or more of the MCS or CQI table, which may be used for dimensioning a soft buffer that is used to store received transmissions for decoding. The MCS field may be a six-bit field and may indicate an MCS that exceeds a highest MCS associated with the CQI table. The base station may activate a semi-persistent scheduling (SPS) configuration at the UE through an activation command, and the UE may verify that SPS is activated based on information in a number of different fields of control information which may include the MCS field.
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Patent Agency Ranking
公开(公告)号：US10972246B2
公开(公告)日：2021-04-06
申请号：US16503800
申请日：2019-07-05
Applicant: QUALCOMM Incorporated
Inventor： Alberto Rico Alvarino , Le Liu , Lai Wei , Wanshi Chen
Abstract: Certain aspects of the present disclosure provide apparatus and method for wireless communication. For example, the method generally includes receiving signaling indicating a first subframe configuration, the first subframe configuration corresponding to a subframe with a first number of symbols in an uplink pilot time slot (UpPTS), receiving signaling indicating a second configuration, the second configuration indicating a second number of symbols in the UpPTS, generating a frame comprising the UpPTS having the first number of symbols corresponding to the first subframe configuration, the UpPTS including one or more SRSs corresponding to the second configuration, and transmitting the frame comprising the UpPTS.
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公开(公告)号：US20210099991A1
公开(公告)日：2021-04-01
申请号：US17031869
申请日：2020-09-24
Applicant: QUALCOMM Incorporated
Inventor： Le Liu , Alberto Rico Alvarino , Huilin Xu , Seyedkianoush Hosseini , Peter Pui Lok Ang , Tingfang Ji , Krishna Kiran Mukkavilli
Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may transmit a UE capability message to a base station, the UE capability message including an indication of a UE type, wherein the UE type is associated with at least one of a reduced bandwidth, or a reduced number of antennas, or a combination thereof for the UE. The UE may receive, based at least in part on the UE capability message, a downlink grant for downlink resources for a data transmission in accordance with a resource allocation scheme, wherein the resource allocation scheme is associated with the UE type and a supported bandwidth part of the UE. The UE may monitor a wireless channel based at least in part on the downlink grant. The UE may receive the data transmission based at least in part on the monitoring of the wireless channel.
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公开(公告)号：US10965503B2
公开(公告)日：2021-03-30
申请号：US16370687
申请日：2019-03-29
Applicant: QUALCOMM Incorporated
Inventor： Le Liu , Alberto Rico Alvarino
Abstract: Aspects directed towards wake-up signal (WUS) scrambling sequence design are disclosed. In one example, a time-based scrambling sequence that facilitates a phase shift in time may be generated according to a time parameter associated with a WUS or a paging occasion (PO). A scrambled WUS may be generated by multiplying a WUS base sequence by the time-based scrambling sequence, and subsequently transmitted to at least one scheduled entity. In another example, a scrambled WUS may be received from a scheduling entity. A time-based scrambling sequence associated with the WUS may be identified in which the time-based scrambling sequence facilitates a phase shift in time and corresponds to a time parameter associated with a WUS or a PO. The WUS may be descrambled according to the time-based scrambling sequence. Other aspects, embodiments, and features are also included.
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公开(公告)号：US10945205B2
公开(公告)日：2021-03-09
申请号：US16127155
申请日：2018-09-10
Applicant: QUALCOMM Incorporated
Inventor： Le Liu , Alberto Rico Alvarino , Peter Pui Lok Ang
Abstract: A method, an apparatus, a base station, a user equipment (UE), and a computer program product for wireless communication are provided. The base station may encode a wakeup signal so that a preamble of the wakeup signal indicates whether the wakeup signal is relevant to the UE. The UE may select a technique for detecting the wakeup signal based at least in part on a partial, full, or no synchronization. In some aspects, the wakeup signal may be encoded with a system frame number. In some aspects, wakeup signals for guardband/standalone UEs are provided. Numerous other aspects are provided.
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公开(公告)号：US10924226B2
公开(公告)日：2021-02-16
申请号：US16368670
申请日：2019-03-28
Applicant: QUALCOMM Incorporated
Inventor： Alberto Rico Alvarino , Tae Min Kim , Le Liu , Raghavendra Shyam Ananda , Wanshi Chen , Ayan Sengupta , Srikanth Menon
Abstract: In some aspects, a method for a user equipment (UE) is provided. In some examples, the UE determines a signal quality for communicating with a node. The UE determines a coverage level based on the signal quality, wherein the coverage level indicates resources to be used for communicating with the node. The UE determines a maximum repetition level and a repetition value, based on the coverage level, for communicating with the node. The UE generates a multibit repetition range identifier that indicates the repetition value based on the maximum repetition level. The UE transmits the multibit repetition range identifier.
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