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公开(公告)号:US10912040B2
公开(公告)日:2021-02-02
申请号:US16218258
申请日:2018-12-12
Applicant: QUALCOMM Incorporated
Inventor: Alessio Marcone , Marco Papaleo , Valentin Alexandru Gheorghiu , Sumant Jayaraman Iyer , Timo Ville Vintola
Abstract: Methods, systems, and devices for wireless communications are described. A base station may determine an emissions mask (e.g., an in-band emission (IBE) mask) for a user equipment (UE) which may be determined based on the total number of UEs scheduled by the base station for uplink transmissions during a same transmission time interval (TTI). The base station may transmit downlink control information (DCI) to the UE indicating the emissions mask. The base station may additionally transmit a grant to the UE allocating resources for the UE based on the UE's position relative to other UEs served by the base station. The UE may receive the DCI and may map the emissions mask to a maximum power reduction (MPR). Based on the MPR, the UE may determine a transmit power and may transmit an uplink transmission to the base station according to the transmission power and the DCI.
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22.
公开(公告)号:US20200322954A1
公开(公告)日:2020-10-08
申请号:US16838877
申请日:2020-04-02
Applicant: QUALCOMM Incorporated
IPC: H04W72/04
Abstract: Various designs for optimization of carrier aggregation (CA) capability signaling are discussed. A user equipment (UE) configured for CA determines to signal supported CA combinations that include a band, the band being one of a first band and a second band. The first band is a superset of the second band. The UE signals the supported CA combinations that include the band to the network. A base station receives a signal indicating the CA combinations supported by the UE that include the band. The base station determines CA combinations that include the first band and CA combinations that include the second band based on the CA combinations received from the UE.
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公开(公告)号:US20200052869A1
公开(公告)日:2020-02-13
申请号:US16535599
申请日:2019-08-08
Applicant: QUALCOMM Incorporated
Inventor: Valentin Alexandru Gheorghiu , Peter Gaal , Timo Ville Vintola
Abstract: Methods, systems, and devices for enhanced carrier aggregation techniques described. For example, component carrier groups including multiple component carriers may be configured. In some cases, each component carrier group may be configured to include 2n component carriers. Also, component carriers may be managed on a per component carrier group basis. In some cases, a single management message may be used to communicate management information for a component carrier group. Similarly, a single control message may be used to communicate control information, such as physical layer parameters, for a component carrier group.
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公开(公告)号:US10470200B2
公开(公告)日:2019-11-05
申请号:US15622877
申请日:2017-06-14
Applicant: QUALCOMM Incorporated
Inventor: Valentin Alexandru Gheorghiu , Sumit Verma , Udara Fernando , Timo Ville Vintola , Peter Gaal
IPC: H04W4/00 , H04W72/12 , H04W72/04 , H04B7/0417 , H04L5/00 , H04W52/14 , H04B7/06 , H04W52/36 , H04B7/0452
Abstract: Low complexity, high order multiple input, multiple output (MIMO) operations are described in which a user equipment (UE), configured with at least one normal performance receiver chain and at least one low-performance, low-complexity diversity receiver chain, signals a capabilities indicator identifying existence of the low-performance diversity receivers. Using the UEs capabilities, a serving base station may schedule uplink and downlink transmissions for the UE to reduce uplink-downlink collisions below a minimum threshold number. The serving base station may also take UE transmit power into consideration for signaling power control or modulation and coding schemes in order to minimize potential interference cause by UE transmissions. For channel state feedback, the UE may provide different channel feedback for uplink-downlink collision subframes and non-collision subframes.
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公开(公告)号:US20190123803A1
公开(公告)日:2019-04-25
申请号:US16167050
申请日:2018-10-22
Applicant: QUALCOMM Incorporated
Inventor: Vasanthan Raghavan , Valentin Alexandru Gheorghiu , Awlok Singh Josan , Jung Ryu , Junyi Li
IPC: H04B7/06 , H04B7/08 , H04B17/318 , H04B7/0426 , H04W72/04
Abstract: Certain aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment may monitor for a beam scanning period indicator from a base station; configure an interval for beam scanning; and beam scan with a set of beams at the interval for beam scanning. In some aspects, a base station may configure an interval for beam scanning by a user equipment; selectively provide, to the user equipment, a beam scanning period indicator identifying the interval for beam scanning; and provide at least one beam from a set of beams in a synchronization codebook to enable the user equipment to perform beam scanning using the interval. Numerous other aspects are provided.
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公开(公告)号:US20190069198A1
公开(公告)日:2019-02-28
申请号:US16055654
申请日:2018-08-06
Applicant: QUALCOMM Incorporated
Inventor: Valentin Alexandru Gheorghiu , Marco Papaleo , Masato Kitazoe
Abstract: Methods, systems, and devices for wireless communications are described. A base station may configure a secondary component carrier (CC) for a user equipment (UE) which is not aligned on a valid channel raster entry. The location of the secondary CC may be indicated based on a reference location relative to another frequency or another CC. The reference location of the secondary CC may be the center of the new CC, an edge of the secondary CC, the position of a subcarrier within the secondary CC, or the position of a resource. In some examples, the reference location of the secondary CC may be indicated relative a currently used CC, an arbitrary channel entry, or an absolute frequency location. In some examples, the relative location may be provided in resource blocks or subcarriers and the subcarrier spacing (SCS). The base station may indicate the width of the secondary CC to the UE.
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公开(公告)号:US10172177B2
公开(公告)日:2019-01-01
申请号:US14251152
申请日:2014-04-11
Applicant: QUALCOMM Incorporated
Inventor: Valentin Alexandru Gheorghiu , Masato Kitazoe , Gavin Bernard Horn
Abstract: Methods, systems, devices, and apparatuses are described for wireless communications in which a wireless device may identify a small cell (e.g., SCell) and establish an independent connection with the small cell based at least in part on selection parameters received from a macro cell (e.g., PCell). The selection parameters may include power and/or quality parameters, as wells as a set of candidate cells from which to make the selection. The macro and small cells may be in communication with each other but need not be associated with the same base station (i.e., are not collocated). Once the small cell connection is established, the device may communicate with both cells concurrently. Available uplink data and/or downlink data may trigger the need for the device to connect with the small cell. For example, the small cell connection may be used to communicate uplink/downlink data associated with certain quality-of-service (QoS) and/or bearer identifier.
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公开(公告)号:US20180338304A1
公开(公告)日:2018-11-22
申请号:US15981858
申请日:2018-05-16
Applicant: QUALCOMM Incorporated
Inventor: Valentin Alexandru Gheorghiu , Heechoon Lee , Marco Papaleo
CPC classification number: H04L5/0091 , H04L5/0007 , H04L5/005
Abstract: Methods, systems, and devices for wireless communication are described. A base station may identify a channel raster associated with a plurality of resource blocks of a channel. The plurality of resource blocks may have an asymmetric relation with respect to the channel raster. The base station may configure, based at least in part on the asymmetric relation, a message to indicate a resource block offset metric that comprises an indication of the channel raster and location information associated with a first resource block of the plurality of resource blocks. The base station may transmit the message to convey the indication of the resource block offset metric.
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公开(公告)号:US20180213512A1
公开(公告)日:2018-07-26
申请号:US15874224
申请日:2018-01-18
Applicant: QUALCOMM Incorporated
Inventor: Jae Ho Ryu , Valentin Alexandru Gheorghiu , Chengjin Zhang
CPC classification number: H04W72/042 , H04L5/001 , H04L5/0098 , H04L27/0006 , H04W16/14 , H04W56/0005 , H04W56/0045 , H04W72/0446 , H04W72/12
Abstract: Methods, systems, and devices for wireless communication are described. A wireless system may support efficient techniques for adding license assisted access (LAA) secondary cells (SCells) to a secondary timing advance group (sTAG). For example, a base station may determine whether to add an LAA SCell to an sTAG based on whether the LAA SCell is a scheduling carrier for a user equipment (UE). That is, the base station may determine whether to add an LAA SCell to an sTAG based on whether a UE scheduled to communicate over the LAA SCell is self-scheduled over the LAA SCell or cross-carrier scheduled over another cell. As such, the wireless system may improve the likelihood that a UE may receive a downlink transmission over an LAA SCell in an sTAG that the UE may use to determine a downlink timing reference for an uplink transmission over the LAA SCell.
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公开(公告)号:US09615336B2
公开(公告)日:2017-04-04
申请号:US14042467
申请日:2013-09-30
Applicant: QUALCOMM Incorporated
Inventor: Madhavan Srinivasan Vajapeyam , Jelena Damnjanovic , Wanshi Chen , Tingfang Ji , Peter Gaal , Valentin Alexandru Gheorghiu
CPC classification number: H04W52/32 , H04W52/146 , H04W52/34 , H04W52/365 , H04W52/367 , H04W52/40
Abstract: Power headroom management in uplink carrier aggregation for connectivity with logically separate cells of a wireless communications system is performed by a network entity, alone or in combination with another network entity, one or more mobile entities, or both. This may include determining an uplink power allocation across at least two independently controlled cells of a wireless communication network for a mobile entity served by at least two independently controlled cells of a wireless communication network, subject to a total PH constraint for uplink transmissions by the mobile entity. A network entity may then manage PH reporting for determining the uplink power allocation by the uplink serving cells, based on the determined uplink power allocation. Managing the PH reporting may be performed by at least one of: explicit coordination between the at least two independently controlled cells, implicit coordination between the at least two independently controlled cells, or configuring PH reporting from the mobile entity by at least one of the at least two independently controlled cells.
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