High doppler channel performance enhancement

    公开(公告)号:AU2017254079B2

    公开(公告)日:2021-07-29

    申请号:AU2017254079

    申请日:2017-03-17

    Applicant: QUALCOMM INC

    Abstract: A base station may determine a Doppler metric associated with a wireless channel and a user equipment (UE). The Doppler metric may be determined from received information related to Doppler effects measured by the UE or from directly measured Doppler effects associated with uplink data received from the UE. Based on the determined Doppler metric, the base station may select one or both of a reference signal (RS) density and a channel estimation technique for the wireless channel and associated UE. The base station may transmit an indication of the RS density to the UE. Downlink data bursts and uplink data bursts may include RSs and data according to the indicated RS density. Further, the base station may transmit to the UE, an indication to communicate using the selected wireless channel estimation technique.

    Señalización de un subconjunto de coreset seleccionados en cot

    公开(公告)号:CO2021007561A2

    公开(公告)日:2021-06-21

    申请号:CO2021007561

    申请日:2021-06-10

    Applicant: QUALCOMM INC

    Abstract: RESUMEN Con el fin de superar los problemas que un UE puede enfrentar al determinar CORESET y haces para la comunicación con la estación base durante un COT, se proporciona un método, aparato y medio legible por computadora para que una estación base indique al UE qué CORESET, relaciones QCL, recursos UL y/o relaciones espaciales se seleccionan para un COT. Un UE recibe una indicación de un conjunto de CORESET seleccionados entre una pluralidad de CORESET o un conjunto de relaciones QCL seleccionadas entre una pluralidad de relaciones QCL. El UE determina el conjunto de CORESET de la pluralidad de CORESET o el conjunto de relaciones de QCL de la pluralidad de relaciones de QCL basándose en la indicación recibida. Un UE recibe una indicación de un conjunto de recursos UL o un conjunto de relaciones espaciales. El UE determina el conjunto de recursos UL o el conjunto de relaciones espaciales basándose en la indicación recibida.

    Signaling a subset of coresets selected in cot

    公开(公告)号:AU2019399489A1

    公开(公告)日:2021-06-10

    申请号:AU2019399489

    申请日:2019-10-25

    Applicant: QUALCOMM INC

    Abstract: In order to overcome problems that a UE may face in determining CORESETs and beams for communication with the base station during a COT, a method, apparatus, and computer-readable medium are provided for a base station to indicate to the UE which CORESET(s), QCL relationships, UL resources, and/or spatial relationships are selected for a COT. A UE receives an indication of a set of CORESETs selected from a plurality of CORESETs or a set of QCL relationships selected from a plurality of QCL relationships. The UE determines the set of CORESETs from the plurality of CORESETs or the set of QCL relationships from the plurality of QCL relationships based on the indication received. A UE receives an indication of a set of UL resources or a set of spatial relations. The UE determines the set of UL resources or the set of spatial relations based on the indication received.

    TIMING ADVANCE DESIGN FOR ENHANCED COMPONENT CARRIER

    公开(公告)号:CA3016199C

    公开(公告)日:2021-06-08

    申请号:CA3016199

    申请日:2017-03-31

    Applicant: QUALCOMM INC

    Abstract: Methods, systems, and devices for wireless communication are described. A base station may establish a transmission gap between downlink (DL) and uplink (UL) transmissions on a shared radio frequency (RF) spectrum band using time division duplex (TDD). A length of the gap may be based at least in part on a maximum allowed length of a filler signal corresponding to a coverage area of the base station. To reserve the shared band, a user equipment (UE) may communicate the filler signal for a length of time that is based at least in part on the maximum allowed length and a geographic distance between the UE and the base station. UEs farther from the base station transmit the filler signal of shorter lengths before sending an UL transmission, so that the UL transmissions from different UEs arrive at the same time at the base station regardless of the geographic distance between the UEs.

    Downlink control for demodulation reference signal transmissions

    公开(公告)号:AU2017247162B2

    公开(公告)日:2021-05-27

    申请号:AU2017247162

    申请日:2017-03-14

    Applicant: QUALCOMM INC

    Abstract: The present disclosure provides a unique control region that is mapped to each data region for DL DMRS transmissions. In addition, the present disclosure provides an updated DCI format that may include DL DMRS transmissions. The apparatus may receive a first content during a first TTI. In an aspect, the content may include at least a control region which includes a DMRS. In addition, a location of the DMRS may be defined by either a closed-loop precoding structure or an open-loop precoding structure. Furthermore, the duration of the first TTI may be shorter than 1 ms. The apparatus may demodulate the control region based at least on the DMRS.

    Micro sleep indicator techniques in a wireless communication system

    公开(公告)号:AU2017249001B2

    公开(公告)日:2021-05-20

    申请号:AU2017249001

    申请日:2017-02-23

    Applicant: QUALCOMM INC

    Abstract: A control channel transmission may include information for downlink transmissions, and another control channel, such as a physical micro sleep indicator channel (PMSICH), may include information for uplink transmissions that a user equipment (UE) may use to enter a power-saving micro sleep state. A base station may drop PMSICH transmissions in the event that downlink resources are constrained. A UE that receives a PMSICH transmission may determine an uplink transmission duration, and enter a micro sleep state for all or a portion of the uplink transmission duration.

    GROUP-COMMON CONTROL INFORMATION
    249.
    发明专利

    公开(公告)号:SG11202013151QA

    公开(公告)日:2021-02-25

    申请号:SG11202013151Q

    申请日:2019-07-23

    Applicant: QUALCOMM INC

    Abstract: Methods, systems, and devices for wireless communications are described. A transmission reception point (TRP) may determine a configuration for downlink transmission of group-common control information associated with a plurality of TRPs. The TRP may identify a set of downlink resources allocated for transmission of the group-common control information. A user equipment (UE) may receive the configuration from at least one TRP of the plurality of TRPs. The UE may monitor downlink resources for reception of the group-common information based on the configuration. The TRP may transmit, and the UE may receive, the group-common control information over the downlink resources. The group-common control information may indicate communication parameters for communications between the UE and at least one TRP.

    Channel sensing for independent links

    公开(公告)号:AU2017316284B2

    公开(公告)日:2021-01-14

    申请号:AU2017316284

    申请日:2017-07-26

    Applicant: QUALCOMM INC

    Abstract: Various aspects of the disclosure relate to channel sensing for independent links. In some aspects, the independent links may involve a first device (e.g., a user equipment) communicating via different independent links with different devices (e.g., transmit receive points (TRPs) or sets of TRPs). For example, the first device may communicate with a second device (e.g., a first TRP) via a first link and communicate with a third device (e.g., a second TRP) via a second link. In some scenarios, first channel sensing information may be obtained for the first link and second channel sensing information may be obtained for the second link. In some aspects, a decision of whether to transmit via one or more of the links may be based on the channel sensing on one or more of the links. In some cases, the links may be grouped together as a channel sensing group.

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