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81.
公开(公告)号:US20190110312A1
公开(公告)日:2019-04-11
申请号:US16215360
申请日:2018-12-10
Applicant: QUALCOMM Incorporated
Inventor: Shimman Arvind Patel , Wanshi Chen , Peter Gaal
Abstract: Methods, systems, and devices for wireless communication are described. A user equipment (UE) and a base station may use low latency communications to improve the throughput of a wireless link. To facilitate efficient low latency communication, the UE may send UE-initiated CSI reports in addition to periodic and base station-initiated reports. For example, the UE may, in various examples, send UE-initiated CSI reports using contention based spectrum, using a request-to-transmit, or using a CSI differential (i.e., an indicator of a change in channel conditions). The base station may schedule different UEs for uplink low latency communication by providing resources to each UE for CSI and scheduling requests (SRs) using coherent or non-coherent uplink transmissions. The CSI and SR may also be combined with uplink feedback.
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82.
公开(公告)号:US20190069316A1
公开(公告)日:2019-02-28
申请号:US16158182
申请日:2018-10-11
Applicant: QUALCOMM Incorporated
Inventor: Shimman Arvind Patel , Wanshi Chen , Peter Gaal
Abstract: Methods, systems, and devices for wireless communication are described. A user equipment (UE) and a base station may use low latency communications to improve the throughput of a wireless link. To facilitate efficient low latency communication, the UE may send UE-initiated CSI reports in addition to periodic and base station-initiated reports. For example, the UE may, in various examples, send UE-initiated CSI reports using contention based spectrum, using a request-to-transmit, or using a CSI differential (i.e., an indicator of a change in channel conditions). The base station may schedule different UEs for uplink low latency communication by providing resources to each UE for CSI and scheduling requests (SRs) using coherent or non-coherent uplink transmissions. The CSI and SR may also be combined with uplink feedback.
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公开(公告)号:US20190069288A1
公开(公告)日:2019-02-28
申请号:US16174102
申请日:2018-10-29
Applicant: QUALCOMM Incorporated
Inventor: Wanshi Chen , Peter Gaal , Shimman Arvind Patel , Hao Xu , Juan Montojo , Aleksandar Damnjanovic
CPC classification number: H04W72/0413 , H04L5/0007 , H04L5/0048 , H04L5/0053 , H04W76/27
Abstract: Methods, systems, and devices for wireless communication are described. A wireless device such as a user equipment (UE) or a base station may identify a set of resource element groups (REGs) for low latency communication, and each REG may include a portion of a different resource block (RB) of a set of RBs (e.g., a set of non-contiguous RBs). The device may then map an uplink control channel to the selected REGs and communicate on the uplink control channel accordingly. Reference signals may also be transmitted in the same RBs, and the REGs may be mapped around the resources used for reference signals. In some cases, multiple UEs may transmit uplink control data using the same resources using code division multiplexing (CDM) (e.g., if the control payload is relatively small). In other cases, multiple UEs may be frequency division multiplexed (FDM).
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公开(公告)号:US10182452B2
公开(公告)日:2019-01-15
申请号:US15458293
申请日:2017-03-14
Applicant: QUALCOMM Incorporated
Inventor: Wanshi Chen , Seyedkianoush Hosseini , Peter Gaal , Shimman Arvind Patel , Jing Sun , Hao Xu
Abstract: Various aspects described herein are related to communicating feedback communications received over multiple component carriers (CCs) in wireless communications. The communications can be received from a serving node over the multiple CCs configured in carrier aggregation or multiple connectivity. One or more of the multiple CCs can be determined for transmitting feedback regarding the communications received over at least one CC of the multiple CCs, wherein the one or more of the multiple CCs are selected for transmitting the feedback based at least in part on a transmission time interval (TTI) duration for the at least one CC. Feedback related to receiving the communications from the serving node over the at least one CC can be transmitted over the one or more of the multiple CCs.
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公开(公告)号:US10172130B2
公开(公告)日:2019-01-01
申请号:US15293664
申请日:2016-10-14
Applicant: QUALCOMM Incorporated
Inventor: Wanshi Chen , Durga Prasad Malladi , Peter Gaal , Hao Xu , Shimman Arvind Patel , Juan Montojo , Aleksandar Damnjanovic
Abstract: Methods, systems, and devices for wireless communication are described. A wireless device configured for carrier aggregation may communicate using transport blocks (TBs) mapped according to a wideband configuration that includes resources of multiple component carriers (CCs) within a single, low latency transmission time interval (TTI)—e.g., a TTI that has a shorter duration relative to other TTIs used in the same system. The number of CCs, and thus bandwidth, available for mapping each TB may change dynamically based on the configuration of the CCs. For a CC configured with a control region during a given low latency TTI, a TB sent during that low latency TTI may not be mapped to resources of that CC. In other cases, portions of a CC configured with a control region may be used for wideband configurations. Wideband low latency communications may be used on the uplink or downlink communications, or both.
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公开(公告)号:US20180332624A1
公开(公告)日:2018-11-15
申请号:US15956932
申请日:2018-04-19
Applicant: QUALCOMM Incorporated
Inventor: Shimman Arvind Patel , Wanshi Chen , Seyedkianoush Hosseini , Alberto Rico Alvarino
CPC classification number: H04W74/0833 , H04W72/04 , H04W72/12 , H04W72/1284
Abstract: Methods, systems, and devices for wireless communication are described that provide scheduling request (SR) resources that may be used by a user equipment (UE) to request uplink resources. SR resources may be allocated within random access channel resources, and a UE may use the SR resources to transmit a SR. The random access resources may be allocated in a first duration transmission time interval (TTI) that has a duration that is shorter than a second duration TTI. The SR resources may be a subset of random access preambles associated with the random access resources.
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87.
公开(公告)号:US20180324771A1
公开(公告)日:2018-11-08
申请号:US15969586
申请日:2018-05-02
Applicant: QUALCOMM Incorporated
Inventor: Seyedkianoush Hosseini , Wanshi Chen , Shimman Arvind Patel , Peter Gaal
CPC classification number: H04W72/042 , H04L5/0048 , H04L5/0051 , H04L5/0092 , H04L25/0226 , H04W52/322 , H04W52/325 , H04W72/0446
Abstract: Methods, systems, and devices for wireless communication are described. A base station may transmit an indication of first and second configurations for sounding reference signal (SRS) transmissions during first and second transmission time intervals (TTIs) having different durations. A user equipment (UE) may identify an SRS to be transmitted and determine a configuration for the SRS transmission based on the TTI duration and the received indication of the first and second configurations. The UE may then transmit the SRS based on the configuration. A base station may receive an SRS during a TTI and may determine a channel quality based at least in part on the SRS. Additionally, a device may identify data to transmit during a TTI, determine a number of resource elements available for transmission of the data during a TTI, and determine a transport block size (TBS) for the data transmission based on the available resource elements.
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公开(公告)号:US20180324018A1
公开(公告)日:2018-11-08
申请号:US15953878
申请日:2018-04-16
Applicant: QUALCOMM Incorporated
Inventor: Seyedkianoush Hosseini , Shimman Arvind Patel , Wanshi Chen
CPC classification number: H04L27/2613 , H04L5/0007 , H04L5/0044 , H04L5/0051 , H04L5/0053 , H04W72/042
Abstract: Methods, systems, and devices for wireless communication are described. In some aspects, a user equipment (UE) may identify a resource block set that includes a data region and a control region, wherein the resource block set spans a portion of a system bandwidth in a shortened transmission time interval (sTTI), wherein the sTTI includes three symbols, wherein the control region occupies the three symbols and includes control information for the UE for the sTTI, and wherein the control region and the data region are frequency division multiplexed. The UE may obtain content in the sTTI based at least in part on the control information. Numerous other aspects are provided.
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公开(公告)号:US10122506B2
公开(公告)日:2018-11-06
申请号:US14946448
申请日:2015-11-19
Applicant: QUALCOMM Incorporated
Inventor: Shimman Arvind Patel , Wanshi Chen , Peter Gaal
Abstract: Various aspects described herein relate to wireless communications, including generating a waveform including a combined reference signal and control data signal, the reference signal and the control data signal being phase offset from one another in the waveform, and transmitting the waveform on one resource block in a transmission time interval having a duration that is less than a subframe.
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公开(公告)号:US20180279298A1
公开(公告)日:2018-09-27
申请号:US15933099
申请日:2018-03-22
Applicant: QUALCOMM Incorporated
Inventor: Renqiu Wang , Peter Gaal , Hao Xu , Wanshi Chen , Joseph Binamira Soriaga , Jing Jiang , Yi Huang , Shimman Arvind Patel
IPC: H04W72/04 , H04L5/00 , H04B1/7156 , H04W48/12
CPC classification number: H04W72/0413 , H04B1/713 , H04B1/7156 , H04B2201/698 , H04L1/0026 , H04L1/0027 , H04L1/0031 , H04L5/0051 , H04L5/0053 , H04L5/0092 , H04W48/12 , H04W72/0446 , H04W72/048
Abstract: Methods, systems, and apparatuses for wireless communication are described. In some wireless systems (e.g., new radio (NR) systems), a system may employ fixed or variable length uplink burst regions (e.g., in an uplink-centric slot). The base station may semi-statically or dynamically configure a user equipment (UE) or group of UEs for uplink control channel transmissions within an uplink burst region. In semi-static configuration, the UE may determine the uplink control channel transmission based on values transmitted or indicated via higher-layer signaling or based on default values. In dynamic configuration, the UE may receive an indication of actual resources used by the base station in a physical layer message. The UE may transmit using an uplink control channel transmission based on the indication. In some cases, the base station may allocate code division multiplexing (CDM) groups based on which UEs are semi-statically configured and which are dynamically configured.
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