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公开(公告)号：US20200221425A1
公开(公告)日：2020-07-09
申请号：US16822842
申请日：2020-03-18
发明人： Wanshi CHEN , Hao XU , Peter GAAL
摘要： Certain aspects of the present disclosure generally relate to wireless communications, and more specifically to managing narrowband regions of system bandwidths for devices with limited communications resources, such as machine type communication(s) (MTC) devices and enhanced MTC (eMTC) devices. An example method generally includes determining a set of downlink (DL) narrowband regions partitioned from a DL system bandwidth, determining a set of uplink (UL) narrowband regions partitioned from an UL system bandwidth, determining a mapping between the set of DL narrowband regions and the set of UL narrowband regions, and communicating with at least a base station (BS) using at least one of the mapped narrowband regions.
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公开(公告)号：US20200186278A1
公开(公告)日：2020-06-11
申请号：US16790453
申请日：2020-02-13
发明人： Alberto RICO ALVARINO , Kapil BHATTAD , Wanshi CHEN , Hao XU
摘要： A method of wireless communication of a user equipment (UE) includes communicating with a base station using a baseline channel code. The UE indicates to the base station, using the baseline channel code, support for an additional channel code that is different than the baseline channel code. The UE receives, from the base station, an indication to operate using the additional channel code. Then, the UE receives a first transmission on first set of resources and a second transmission on a second set of resources from the base station, the first transmission being encoded with the baseline channel code and the second transmission being encoded with the additional channel code.
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公开(公告)号：US20200178189A1
公开(公告)日：2020-06-04
申请号：US16781544
申请日：2020-02-04
发明人： Jing LEI , Hao XU , Peter GAAL , Xiaofeng WANG , Wanshi CHEN , Yongbin WEI , Juan MONTOJO , Alberto RICO ALVARINO
摘要： Aspects of the present disclosure provide techniques for design of synchronization signals for narrowband operation and other clean-slate, OFDM based systems such as enhanced component carrier (eCC) systems. An example method is provided for operations which may be performed by a BS to generate and transmit a dual-layer PSS, and correspondingly, techniques for a UE to detect the dual-layer PSS. The PSS may be generated utilizing a binary code cover and at least one sequence applied to a number of symbols within one or more subframes of a frame.
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公开(公告)号：US20200154356A1
公开(公告)日：2020-05-14
申请号：US16739674
申请日：2020-01-10
发明人： Kapil BHATTAD , Mungal Singh DHANDA , Alberto RICO ALVARINO , Hao XU , Wanshi CHEN , Xiao Feng WANG
摘要： Techniques described herein use a wakeup signal to indicate to a user equipment (UE) whether an upcoming control channel signal resource includes information relevant to the UE. In this way, the UE can wake up to perform complex control channel signal processing only when the control channel includes signals relevant to the UE, thereby conserving battery power and resources of the UE. Such techniques are particularly suited to MTC UEs, NB-IoT UEs, and/or the like, which may communicate with a network only occasionally, and which may be located in remote locations where changing or recharging a battery is difficult.
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公开(公告)号：US20200044808A1
公开(公告)日：2020-02-06
申请号：US16598807
申请日：2019-10-10
摘要： Techniques for signaling dynamic control region for PRACH transmission are described. In an aspect, the disclosure describes a method for receiving, at a user equipment (UE), an indication of a number of control symbols that the UE is to assume when transmitting physical random access channel (PRACH), and transmitting, by the UE, the PRACH over one or more slots based on the number of control symbols. In another aspect, the disclosure describes a method for generating, at a network device, an indication of a number of control symbols that a UE is to assume when transmitting PRACH, transmitting, by the network device, the indication to the UE. A UE and network device configuration as well as apparatuses and computer-readable medium related to these methods are also described.
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66.发明申请公开(公告)号：US20190297611A1
公开(公告)日：2019-09-26
申请号：US16439594
申请日：2019-06-12
发明人： Alberto RICO ALVARINO , Wanshi CHEN , Hao XU
摘要： Various devices, methods, and processes are provided for handling conflicting and/or redundant power control and triggering information for transmitting reference signal(s) such as sounding reference signal (SRS) using carrier aggregation (CA). A user equipment (UE) receives a first downlink control information (DCI) and a second DCI including SRS control information that is in conflict with that of the first DCI, for controlling SRS transmission on a component carrier (CC). The UE determines a resolution to reconcile the conflict between the DCIs. Then the UE can transmit an SRS on the CC in accordance with the resolution.
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公开(公告)号：US20190253180A1
公开(公告)日：2019-08-15
申请号：US16392897
申请日：2019-04-24
发明人： Hao XU , Wanshi CHEN , Tingfang JI , Peter GAAL
CPC分类号： H04L1/0007 , H04L1/0003 , H04L1/0009 , H04L1/1854 , H04L5/0007 , H04L5/0092 , H04L2001/125
摘要： Aspects of the present disclosure provide techniques for enhanced transmission time interval (TTI) bundling design for machine type communications (MTC). A method for wireless communications by a wireless device is provided. The method generally includes determining a mapping of one or more uplink or downlink channels to one or more fixed bundling sizes, wherein each of the one or more fixed bundling sizes indicates a number of transmission time intervals (TTIs) over which a channel should be transmitted and processing transmission of the one or more uplink or downlink channels based on the mapping.
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公开(公告)号：US20190239220A1
公开(公告)日：2019-08-01
申请号：US16369308
申请日：2019-03-29
发明人： Seyed Ali Akbar FAKOORIAN , Alberto RICO ALVARINO , Peter GAAL , Wanshi CHEN , Yongbin WEI , Juan MONTOJO , Renqiu WANG , Hao XU , Xiaofeng WANG
CPC分类号： H04W72/0446 , H04L5/0046 , H04L5/0048 , H04L27/2078
摘要： Aspects of the present disclosure provide techniques for uplink (UL) data channel design. An example method is provided for operations which may be performed by a first apparatus. The example method generally comprises determining a number of pilot symbols to transmit for one or more slots of a first subframe based, at least in part, on a coverage enhancement (CE) level, and transmitting at least one uplink data channel having the determined number of pilot symbols in the one or more slots of the first subframe.
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公开(公告)号：US20190165911A1
公开(公告)日：2019-05-30
申请号：US16259941
申请日：2019-01-28
发明人： Jing LEI , Peter GAAL , Hao XU , Wanshi CHEN , Yongbin WEI , Xiao Feng WANG , Renqiu WANG , Seyed Ali Akbar FAKOORIAN , Madhavan Srinivasan VAJAPEYAM , Alberto RICO ALVARINO , Juan MONTOJO
摘要： Aspects of the present disclosure provide techniques for design of synchronization signals for narrowband operation, which can be used for stand-alone/in-band/guard-band deployment. An example method is provided for operations which may be performed by a base station (BS). The example method generally includes generating a primary synchronization signal (PSS) utilizing a first code sequence and a cover code applied to the first code sequence over a first number of symbols within one or more subframes, generating a secondary synchronization signal (SSS) based on a second code sequence over a second number of symbols within one or more subframes, and transmitting the PSS and the SSS in the first and second subframes to a first type of a user equipment (UE) that communicates on one or more narrowband regions of wider system bandwidth.
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公开(公告)号：US20190141718A9
公开(公告)日：2019-05-09
申请号：US15040794
申请日：2016-02-10
发明人： Hao XU , Renqiu WANG , Peter GAAL , Wanshi CHEN , Yongbin WEI , Madhavan Srinivasan VAJAPEYAM , Valentin Alexandru GHEORGHIU
摘要： Aspects of the present disclosure provided techniques that for wireless communications by a user equipment (UE). An exemplary method, performed by a UE, generally includes determining an additional set of resources to use to enhance measurement of one or more metrics indicative of channel conditions based on measurement of reference signals during a measurement procedure, wherein the additional set of resources are in addition to a defined set of resources used to measure the one or more metrics and performing the measurement procedure based at least on the reference signals, the additional set of resources, and one or more measurement parameters
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