公开(公告)号：US20180176040A1

公开(公告)日：2018-06-21

申请号：US15841527

申请日：2017-12-14

Applicant: QUALCOMM Incorporated

Inventor： Yongle WU ,  Pengkai ZHAO ,  Supratik BHATTACHARJEE ,  Amir FARAJIDANA ,  Wenshu ZHANG ,  Michael Lee MCCLOUD

IPC: H04L25/02

Abstract: Certain aspects of the present disclosure relate to techniques for estimating a channel using soft-windowing. A user equipment (UE) may determine, based on a cyclic prefix (CP) length of a channel, a timing window for sampling reference signals transmitted on the channel, determine a set of weights to apply to samples obtained within the determined timing window, wherein each weight corresponds to a sample obtained within the determined window, and estimate the channel by applying the weights to the samples.

公开(公告)号：US20150223161A1

公开(公告)日：2015-08-06

申请号：US14606757

申请日：2015-01-27

Applicant: QUALCOMM INCORPORATED

Inventor： Lei XIAO ,  Brian Clarke BANISTER ,  Amir FARAJIDANA ,  Alexei Yurievitch GOROKHOV

IPC: H04W48/20 ,  H04B7/04 ,  H04L5/00

CPC classification number: H04W48/20 ,  H04B7/0417 ,  H04B7/0478 ,  H04L5/0035 ,  H04L5/0057 ,  H04L5/0073 ,  H04W24/10 ,  H04W72/042

Abstract: Certain example embodiments of the present disclosure provide techniques for joint transmission of channel state information reference signals (CSI-RS) from multiple transmission points (TPs) for channel state feedback and/or TP selection. An example method generally includes coordinating with one or more other TPs to jointly transmit a channel state information reference signal (CSI-RS) to a user equipment (UE); signaling a reporting restriction to the UE; receiving precoding matrix indicator (PMI) feedback from the UE based on the jointly transmitted CSI-RS and subject to the reporting restriction; and selecting one or more of the TPs to serve based on the PMI feedback.

Abstract translation: 本公开的某些示例性实施例提供了用于从用于信道状态反馈和/或TP选择的多个传输点（TP））共同传输信道状态信息参考信号（CSI-RS）的技术。 示例性方法通常包括与一个或多个其他TP协调以将信道状态信息参考信号（CSI-RS）联合发送到用户设备（UE）; 向UE发送报告限制; 基于联合发送的CSI-RS接收来自UE的预编码矩阵指示符（PMI）反馈并受到报告限制; 以及基于PMI反馈来选择要服务的一个或多个TP。

公开(公告)号：US20190261328A1

公开(公告)日：2019-08-22

申请号：US16276258

申请日：2019-02-14

Applicant: QUALCOMM Incorporated

Inventor： Seyedkianoush HOSSEINI ,  Shashank MAIYA ,  Amir FARAJIDANA ,  Wenshu ZHANG

IPC: H04W72/04 ,  H04L5/00

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a wireless communication device may identify that a last resource block of a resource allocation for a physical downlink shared channel (PDSCH) is in a last allocable resource block group (RBG); and determine whether one or more additional resource blocks, subsequent to the last resource block, are included in the resource allocation for the PDSCH based at least in part on at least one of a reference signal type associated with the PDSCH, a quantity of the one or more additional resource blocks, or the DCI format associated with the PDSCH. Numerous other aspects are provided.

公开(公告)号：US20190182867A1

公开(公告)日：2019-06-13

申请号：US16279760

申请日：2019-02-19

Applicant: QUALCOMM Incorporated

Inventor： Seyedkianoush HOSSEINI ,  Amir FARAJIDANA ,  Wanshi CHEN

IPC: H04W74/08 ,  H04W52/36 ,  H04W72/04

Abstract: A method, an apparatus, and a computer program product for wireless communication are provided. The apparatus may identify a potential collision between a scheduled legacy transmission time interval (TTI) communication and a scheduled shortened TTI (sTTI) communication, the legacy TTI communication having a legacy TTI duration that is longer than an sTTI duration associated with the sTTI communication. The apparatus may determine whether the legacy TTI communication is within a threshold time of being transmitted. The apparatus may transmit at least one of the sTTI communication, the legacy TTI communication, or any combination thereof, based at least in part on the determination.

公开(公告)号：US20180234226A1

公开(公告)日：2018-08-16

申请号：US15890965

申请日：2018-02-07

Applicant: QUALCOMM Incorporated

Inventor： Seyedkianoush HOSSEINI ,  Amir FARAJIDANA ,  Wanshi CHEN

IPC: H04L5/00 ,  H04L1/18 ,  H04L27/26 ,  H04W72/04

Abstract: The present disclosure relates to reducing control overhead in a wireless communication system. For example, a network entity may determine to transmit data according to a codeword format based on at least one of a transmission time interval (TTI), or a traffic type of the data, or any combination thereof, and configure the data for transmission on a communication channel according to the codeword format. Further, for instance, a user equipment may receive a transmission from a network entity on a downlink communication channel according to a codeword format, and transmit at least one of an acknowledgement (ACK) or a negative acknowledgement (NACK) on an uplink communication channel in response to receiving the transmission from the network entity.

公开(公告)号：US20180007575A1

公开(公告)日：2018-01-04

申请号：US15635547

申请日：2017-06-28

Applicant: QUALCOMM Incorporated

Inventor： Vaibhav SINGHAL ,  Heechoon LEE ,  Alexei Yurievitch GOROKHOV ,  Sarabjot Singh KHANGURA ,  Chengjin ZHANG ,  Amir FARAJIDANA ,  Amir AMINZADEH GOHARI ,  Wenshu ZHANG

IPC: H04W24/08 ,  H04L5/00 ,  H04W72/04

CPC classification number: H04W24/08 ,  H04L5/001 ,  H04L5/0023 ,  H04L5/0048 ,  H04L5/005 ,  H04L5/0057 ,  H04L5/006 ,  H04L5/0085 ,  H04L27/26 ,  H04W24/04 ,  H04W72/042 ,  H04W72/0446 ,  H04W76/15 ,  H04W76/19 ,  Y02D70/00 ,  Y02D70/1242 ,  Y02D70/1262 ,  Y02D70/1264 ,  Y02D70/142 ,  Y02D70/146 ,  Y02D70/23 ,  Y02D70/24

Abstract: In wireless communication networks using carrier aggregation including a secondary component carrier in unlicensed spectrum, a user equipment (UE) may monitor a downlink radio link quality of secondary cells for an event indicating failure of a communication link in the unlicensed spectrum with a secondary cell. The UE detects one or more failure events based on the downlink radio link quality. When a designated set of failure events is detected, the UE declares a failure state on the secondary cell. In response to the failure state, the UE may adjust operations related to the secondary component carrier in the unlicensed spectrum in order to save power and resources.

公开(公告)号：US20150049672A1

公开(公告)日：2015-02-19

申请号：US14459071

申请日：2014-08-13

Applicant: QUALCOMM INCORPORATED

Inventor： Xiliang LUO ,  Brian Clarke BANISTER ,  Shivratna Giri SRINIVASAN ,  Keith William SAINTS ,  Amir AMINZADEH GOHARI ,  Wenshu ZHANG ,  Timothy Paul PALS ,  Ke LIU ,  Alexei Yurievitch GOROKHOV ,  Amir FARAJIDANA

IPC: H04W40/16 ,  H04W40/30

CPC classification number: H04W40/16 ,  H04W36/0088 ,  H04W36/04 ,  H04W36/36 ,  H04W40/30

Abstract: Certain aspects relate to methods and apparatus for avoiding and/or escaping cell range expansion (CRE) in a heterogeneous network (HetNet). A user equipment (UE) may detect the occurrence of one or more conditions while the UE is in a region of cell range expansion (CRE) in which the UE may be handed over from a first cell of a first power class type to a second cell of a second power class type, the second power class type being lower than the first power class type. The UE may take action to stop being served by the second cell or avoid being handed over to the second cell in response to the detection.

Abstract translation: 某些方面涉及用于避免和/或逃避异构网络（HetNet）中的小区范围扩展（CRE）的方法和装置。 用户设备（UE）可以在UE处于其中UE可以从第一功率类型的第一小区切换到小区范围扩展（CRE）的区域中时，检测出一个或多个条件的发生， 第二功率类型的小区，第二功率类型低于第一功率类型。 UE可以采取动作来停止由第二小区服务，或者避免响应于该检测被切换到第二小区。

公开(公告)号：US20200329369A1

公开(公告)日：2020-10-15

申请号：US16798221

申请日：2020-02-21

Applicant: QUALCOMM Incorporated

Inventor： Timothy Paul PALS ,  Alberto RICO ALVARINO ,  Amir FARAJIDANA ,  Honey KAKKAR ,  Parastoo KHEIRKHAH ,  Nitin PANT ,  Umesh PHUYAL ,  Wenshu ZHANG

IPC: H04W8/24 ,  H04B7/0417 ,  H04L1/00

Abstract: Aspects are provided which allow an apparatus to efficiently indicate downgraded band combinations associated with carrier aggregation (CA) to a base station, in which one or more UE capabilities such as the DL MIMO of certain supported band combinations may be downgraded in exchange for other UE capabilities such as FD-MIMO and 256/1024QAM. The apparatus, which may be a UE, receives a request from a base station for information associated with downgraded band combinations and for information corresponding to at least one UE capability associated with each of the downgraded band combinations. After receiving the request, the UE sends, to the base station, information indicating the downgraded band combinations and the at least one UE capability. The UE may thus report downgraded band combinations for a subset of supported band combinations as requested by the base station, thereby minimizing capability reporting of the UE.

公开(公告)号：US20190253229A1

公开(公告)日：2019-08-15

申请号：US16270546

申请日：2019-02-07

Applicant: QUALCOMM Incorporated

Inventor： Seyedkianoush HOSSEINI ,  Amir FARAJIDANA ,  Ahmed Omar Desouky ALI ,  Thiagarajan SIVANADYAN ,  Wenshu ZHANG ,  Pengkai ZHAO

IPC: H04L5/00

CPC classification number: H04L5/0094 ,  H04L5/0007

Abstract: Systems, apparatuses, and methods for computing transport block size (TB S) for channels with shortened transmission time interval (sTTI). An initial size may be determined based on one or more TBS tables. The initial size may be scaled by a factor associated with an sTTI channel. A TBS table is selected based on the one or more TBS tables. The scaled size may be rounded based on the selected TBS table to generate a TBS for the sTTI channel.

公开(公告)号：US20180206258A1

公开(公告)日：2018-07-19

申请号：US15872658

申请日：2018-01-16

Applicant: QUALCOMM Incorporated

Inventor： Seyedkianoush HOSSEINI ,  Amir FARAJIDANA ,  Wanshi CHEN ,  Peter GAAL ,  Brian Clarke BANISTER ,  Aamod KHANDEKAR

IPC: H04W72/12 ,  H04W72/14 ,  H04W28/02

Abstract: A UE may determine a number of resources granted for uplink or downlink communication in a processing window. The resources may include uplink resources or downlink resources and the processing windows may include a predetermined number of subframes. For uplink (UL) transmissions, this may include determining a number of transport block bits, resource blocks, or other resources scheduled in one or more first UL channel grants for a first UL channel, and determining a number of such resources scheduled in a second UL grant for a second UL channel. For downlink (DL) transmissions, the determining may include determining a number of resources received on a first DL channel in each subframe of a set of subframes, and determining a number of resources received on a second DL channel. The determined number of UL or DL resources may be compared to a corresponding threshold which his based on the UE capabilities and processed in accordance a result of the comparison. These and additional aspects are described herein.