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公开(公告)号：US20180183557A1
公开(公告)日：2018-06-28
申请号：US15850428
申请日：2017-12-21
Applicant: QUALCOMM Incorporated
IPC: H04L5/00
CPC classification number: H04L5/0051 , H04L5/0053 , H04L5/14 , H04L5/1469 , H04W72/042
Abstract: 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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公开(公告)号：US20180132269A1
公开(公告)日：2018-05-10
申请号：US15687388
申请日：2017-08-25
Applicant: QUALCOMM Incorporated
Inventor： Renqiu WANG , Hao XU , Wei ZENG , Seyong PARK , Wanshi CHEN , Peter GAAL , Tingfang JI
CPC classification number: H04W72/1284 , H04B7/0632 , H04L1/0026 , H04L1/0073 , H04L1/1861 , H04L5/0007 , H04L5/001 , H04L5/0048 , H04L5/0051 , H04L5/0055 , H04L5/0057 , H04W52/36 , H04W52/365 , H04W72/0413 , H04W72/0453 , H04W76/27
Abstract: A user equipment (UE) may map a demodulation reference signal (DMRS) sequence to a first symbol in a set of resource blocks (RBs) of an uplink long burst, and the first symbol may occur at the beginning of the uplink long burst. The DMRS sequence may be “front-loaded” in the uplink long burst. The DMRS sequence may be dependent upon RB locations. When the DMRS sequence is mapped to the beginning of an uplink long burst, uplink control information (UCI) may be mapped in a physical uplink shared channel (PUSCH). A UE may map UCI in a PUSCH after the DMRS sequence is mapped to the beginning of the uplink long burst. When the base station receives an uplink long burst including the front-loaded DMRS and the UCI mapped in the PUSCH, the base station may identify the DMRS for channel estimation/interference cancelation of the UCI carried on the PUSCH.
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公开(公告)号：US20180131547A1
公开(公告)日：2018-05-10
申请号：US15711697
申请日：2017-09-21
Applicant: QUALCOMM Incorporated
Inventor： Renqiu WANG , Hao XU , Durga Prasad MALLADI
CPC classification number: H04L27/2602 , H04B1/00 , H04L5/0012 , H04L5/0053 , H04L5/0094 , H04W4/70 , H04W28/18 , H04W74/004 , H04W74/008 , H04W74/0833 , H04W88/08
Abstract: Certain aspects of the present disclosure provide techniques for improving a physical random access channel (PRACH) design, for example, to support larger cell radius for communications in a wireless network. In aspects, a method of wireless communication by a user equipment (UE) is provided. The method generally includes receiving at least one configuration of a plurality of available narrowband physical random access channel (NPRACH) configurations or an indication of one of the plurality of NPRACH configurations. Each of the plurality of NPRACH configurations includes a different combination of at least two of a multi-level frequency hopping patter, cyclic prefix length, symbol group format, or tone spacing for NPRACH signals. The method also includes determining at least one resource within a plurality of available NPRACH resources according to the received configuration(s) or the received indication, and transmitting a NPRACH signal using the determined at least one resource.
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754.发明申请公开(公告)号：US20180131485A1
公开(公告)日：2018-05-10
申请号：US15699687
申请日：2017-09-08
Applicant: QUALCOMM Incorporated
Inventor： Renqiu WANG , Hao XU , Wei ZENG , Seyong PARK , Wanshi CHEN , Peter GAAL , Tingfang JI
Abstract: A first apparatus may determine a demodulation reference signal (DMRS) sequence based on a mother sequence, map the DMRS sequence to at least a first symbol of a set of resource blocks (RBs) in a transmission, and send a DMRS including the mapped DMRS sequence in the at least one symbol of the set of RBs. A second apparatus may receive information associated with resource allocation, determine a granularity based on the information associated with resource allocation, determine resource allocation based at least in part on the granularity, and receive a signal carried on resources corresponding to the resource allocation.
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公开(公告)号：US20180124755A1
公开(公告)日：2018-05-03
申请号：US15797729
申请日：2017-10-30
Applicant: QUALCOMM Incorporated
Inventor： Yi HUANG , Wei ZENG , Hao XU , Renqiu WANG
CPC classification number: H04W72/042 , H04L5/0012 , H04L5/0028 , H04L5/0042 , H04L5/0044 , H04L5/0048 , H04L5/0066 , H04L5/0094 , H04L5/1469 , H04W72/0413
Abstract: Various aspects include a method and an apparatus for receiving a uplink (UL) short burst at an eNB, by determining, at the eNB, one or more tone assignments for one or more channels of the UL short burst, wherein the one or more channels of the UL short burst include a sounding reference signal (SRS), a demodulation reference signal (DMRS), a physical uplink control channel (PUCCH), or a physical uplink shared channel (PUSCH), transmitting the one or more tone assignments to the UE, and receiving the UL short burst from the UE, wherein the UL short burst is generated at the UE based at least on the one or more tone assignments transmitted from the eNB. Methods may include transmitting a uplink (UL) short burst from a user equipment
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Patent Agency Ranking
公开(公告)号：US20180102887A1
公开(公告)日：2018-04-12
申请号：US15457697
申请日：2017-03-13
Applicant: QUALCOMM Incorporated
Inventor： Wanshi CHEN , Peter GAAL , Hao XU , Juan MONTOJO , Tao LUO , Tingfang JI , Naga BHUSHAN
CPC classification number: H04L5/0048 , H04B7/0626 , H04B7/0695 , H04L1/0026 , H04L5/005 , H04L5/0057 , H04W4/70 , H04W24/10 , H04W72/0413
Abstract: The present disclosure describes a method, an apparatus, and a computer readable medium for reporting channel state information (CSI) feedback by a user equipment (UE). For example, the method may include identifying a plurality of reference signal (RS) configurations, determining a preferred RS configuration from the plurality of the RS configurations identified at the UE, and reporting the preferred RS configuration to the node. The present disclosure further includes receiving channel state information (CSI) feedback at a node which includes transmitting a plurality of reference signals to a plurality of user equipments (UEs) and receive a preferred RS configuration from at least a UE of the plurality of the UEs.
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公开(公告)号：US20180097594A1
公开(公告)日：2018-04-05
申请号：US15619086
申请日：2017-06-09
Applicant: QUALCOMM Incorporated
Inventor： Renqiu WANG , Wei ZENG , June NAMGOONG , Hao XU , Peter GAAL
CPC classification number: H04L5/0048 , H04L27/2613 , H04W72/0413
Abstract: Various additional and alternative aspects are described herein. In some aspects, the present disclosure provides a method for wireless communication. The method includes determining at least one RS pattern for allocating a reference signal on an uplink channel and a downlink channel based on one or more transmission factors for transmitting the reference signal, wherein at least a portion of the at least one RS pattern is the same for the uplink channel and the downlink channel. The method further includes transmitting the reference signal using the determined RS pattern.
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公开(公告)号：US20180084452A1
公开(公告)日：2018-03-22
申请号：US15811930
申请日：2017-11-14
Applicant: QUALCOMM Incorporated
Inventor： Miguel GRIOT , Hao XU , Madhavan Srinivasan VAJAPEYAM
CPC classification number: H04W28/0289 , H04L63/205 , H04W4/70 , H04W12/02 , H04W12/04 , H04W12/06 , H04W68/02 , H04W76/12
Abstract: Certain aspects of the present disclosure generally relate to techniques for secure connectionless uplink transmissions by a wireless device. Such techniques may provide for negotiation of an encryption mechanism as part of the setup for connectionless transmissions and subsequent secure connectionless uplink transmissions.
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公开(公告)号：US20180077693A1
公开(公告)日：2018-03-15
申请号：US15818475
申请日：2017-11-20
Applicant: QUALCOMM Incorporated
Inventor： Wanshi CHEN , Hao XU , Juan MONTOJO , Peter GAAL
Abstract: Certain aspects of the present disclosure relate to techniques for reducing the decoding complexity for low cost devices (e.g., low cost UEs). One technique may include simplifying the PDCCH format. This may include generating a compact DCI format for transmitting DCI to a low cost device. The compact DCI format may correspond to at least one standard DCI format used by a regular UE and may comprise a reduced number of bits when compared to the standard DCI format. Another technique may include reducing the number of blind decodes. This technique may include selecting a set of resources for transmitting DCI from a limited set of decoding candidates, such that a receiving low cost device need only perform blind decodes for the limited set of decoding candidates.
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公开(公告)号：US20180049097A1
公开(公告)日：2018-02-15
申请号：US15637618
申请日：2017-06-29
Applicant: QUALCOMM Incorporated
Inventor： Wanshi CHEN , Jing JIANG , Tingfang JI , Peter GAAL , Chong LI , Chih Ping LI , Hao XU , John Edward SMEE
CPC classification number: H04W40/12 , H04L1/0003 , H04L1/1812 , H04L1/1819 , H04L1/1825 , H04L1/1845 , H04L1/1896 , H04W16/32 , H04W72/0406 , H04W72/0446 , H04W88/02
Abstract: Aspects of the present disclosure relate to wireless communications and, more particularly, to linkage of packet transmissions for ultra-reliable low-latency communications (URLLC) in new radio (NR). A method for wireless communications that may be performed by a user equipment (UE) is provided. The method generally includes receiving a current transmission of a packet; determining, based on the current packet transmission, one or more previous transmissions of the packet occurred and at least one parameter associated with the one or more previous transmissions; and combining the current packet transmission with the previous transmissions based, at least in part, on the determination.
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