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公开(公告)号：US20180014251A1
公开(公告)日：2018-01-11
申请号：US15472506
申请日：2017-03-29
Applicant: QUALCOMM Incorporated
Inventor： Sharad SAMBHWANI , Hao XU , Durga Prasad MALLADI
CPC classification number: H04W52/0212 , H04L5/0055 , H04W4/70 , H04W52/0216 , H04W52/0229 , H04W52/0235 , Y02D70/00 , Y02D70/1242 , Y02D70/1262 , Y02D70/142 , Y02D70/144 , Y02D70/162 , Y02D70/20 , Y02D70/21 , Y02D70/24 , Y02D70/26
Abstract: In an aspect of the disclosure, a method, a computer-readable medium, and an apparatus are provided. The apparatus operates in a first power mode with a first DL bandwidth in association with one of a radio resource control (RRC) idle state or an RRC connected state with a base station. The apparatus transitions to a second power mode with a second DL bandwidth less than the first DL bandwidth. Additionally, the apparatus monitors a set of symbols and a set of subcarriers of the second DL bandwidth for an activity indicator from the base station. The apparatus transitions from the second power mode to the first power mode upon receiving the activity indicator from the base station. In an aspect, control information associated with a modulation scheme may be within the set of symbols and the set of subcarriers. The control information may correspond to a particular constellation point.
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公开(公告)号：US20170359820A1
公开(公告)日：2017-12-14
申请号：US15593275
申请日：2017-05-11
Applicant: QUALCOMM Incorporated
Inventor： Peter GAAL , Wanshi CHEN , Hao XU , Alberto RICO ALVARINO
CPC classification number: H04W72/0446 , H04L5/0048 , H04L5/005 , H04L5/0051 , H04L5/0094 , H04L27/261 , H04W4/70 , H04W8/22 , H04W24/08 , H04W72/042 , H04W72/048
Abstract: Aspects of the present disclosure provide techniques and apparatus for determining presence and/or bandwidth of reference signals (RS) in systems that utilize narrowband regions of wider system bandwidth for wireless communications, such as enhanced machine type communication(s) (eMTC) systems and/or narrowband Internet-of-Things (NB-IoT) systems. Aspects provide a method for wireless communications by a user equipment (UE) operating in a narrowband region of a wider system bandwidth. The method generally includes determining at least one of: a presence of one or more RS in a subframe or a bandwidth of the one or more RS, wherein the bandwidth of the one or more RS is greater than or equal to a bandwidth of the narrowband region; and monitoring for the one or more RS in the subframe based on the determination.
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公开(公告)号：US20170359765A1
公开(公告)日：2017-12-14
申请号：US15486158
申请日：2017-04-12
Applicant: QUALCOMM Incorporated
Inventor： Amith Vikram CHINCHOLI , Valentin Alexandru GHEORGHIU , Masato KITAZOE , Hao XU
IPC: H04W36/36 , H04W24/10 , H04W36/00 , H04W56/00 , H04W76/04 , H04W36/30 , H04L12/26 , H04W36/08 , H04L5/00 , H04W76/02 , H04W88/08 , H04W88/02
CPC classification number: H04W36/36 , H04L5/0048 , H04L5/0057 , H04L43/16 , H04W24/10 , H04W36/0088 , H04W36/08 , H04W36/30 , H04W36/305 , H04W56/001 , H04W76/19 , H04W76/27 , H04W76/28 , H04W88/02 , H04W88/08
Abstract: Aspects of the present disclosure provide techniques and apparatus for user equipment initiated handover. Certain aspects include a method for wireless communications by a user equipment (UE) including determining a first signal metric between the UE and a first base station, while the UE has a connection established with the first base station. The method further includes determining a second signal metric between the UE and a second base station, while the UE does not have a connection established with the second base station. The method further includes determining that the second signal metric is stronger than the first signal metric. The method further includes declaring a radio link failure with the first base station based on determining that the second signal metric is stronger than the first signal metric. The method further includes establishing a connection with the second base station.
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公开(公告)号：US20170359161A1
公开(公告)日：2017-12-14
申请号：US15687745
申请日：2017-08-28
Applicant: QUALCOMM Incorporated
Inventor： Juan MONTOJO , Peter GAAL , Wanshi CHEN , Hao XU , Tao LUO
CPC classification number: H04L5/16 , H04L5/0028 , H04L5/0037 , H04L5/0055 , H04L5/006 , H04L5/0085 , H04L5/0092 , H04L5/14 , H04W72/0453 , H04W72/048 , H04W72/10
Abstract: Half-duplex (HD) operations enable low cost implementations of LTE terminals. Traditionally, HD operations may be linked to a particular frequency band which may not allow a mix of full-duplex (FD) and HD terminals in the same frequency band. Therefore, certain aspects of the present disclosure provide techniques for enabling coexistence, in a given frequency band, of HD and FD terminals, by introducing frequency bands designated for HD operation and overlapping existing frequency bands designated for FD operation.
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435.发明申请公开(公告)号：US20170332370A1
公开(公告)日：2017-11-16
申请号：US15498246
申请日：2017-04-26
Applicant: QUALCOMM Incorporated
Inventor： Alberto RICO ALVARINO , Peter GAAL , Hao XU , Wanshi CHEN
CPC classification number: H04W72/0413 , H04L5/001 , H04L5/0048 , H04L5/0098 , H04W8/22 , H04W52/146 , H04W52/44 , H04W52/48 , H04W72/042
Abstract: Aspects of the present disclosure provide procedures for handling interruption due to carrier switching for sounding reference signal transmission and for a carrier switching capability indication. A method by a user equipment (UE) is provided, generally including interrupting communication on a first component carrier (CC) to switch between the first CC and a second CC to transmit an uplink reference signal on the second CC and adjusting one or more parameters of an uplink transmission on the first component carrier to account for the interrupting communication on the second CC. In aspects, another method is provided in which, a UE receives a query from a base station for switching capability information of the UE for one or more carrier aggregation (CA) configurations and, in response to the query, provides an indication to the BS of the switching capability information of the UE for the one or more CA configurations.
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Patent Agency Ranking
436.发明申请公开(公告)号：US20170332357A1
公开(公告)日：2017-11-16
申请号：US15592138
申请日：2017-05-10
Applicant: QUALCOMM Incorporated
Inventor： Hao XU , Jing JIANG , Tingfang JI
CPC classification number: H04W72/042 , H04L1/0013 , H04L5/0048 , H04L5/0053 , H04W4/029 , H04W4/70 , H04W72/005 , H04W72/0453 , H04W72/10 , H04W74/04
Abstract: Certain aspects of the present disclosure relate to methods and apparatus for wireless communication, and more particularly, to coexistence of different radio access technologies (RATs). In certain aspects, the method generally includes receiving a deployment configuration for an in-band mode of operation within system bandwidth of a type of radio access technology (RAT), and operating as if configured to operate within a guard-band of the system bandwidth or in a standalone mode while communicating in the in-band mode.
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公开(公告)号：US20170317816A1
公开(公告)日：2017-11-02
申请号：US15433506
申请日：2017-02-15
Applicant: QUALCOMM Incorporated
Inventor： Jing LEI , Peter GAAL , Hao XU , Wanshi CHEN , Xiao feng WANG
CPC classification number: H04L7/041 , H04J11/0076 , H04J13/0062 , H04J13/10 , H04J13/107 , H04W48/16
Abstract: In order to address the needs of narrow band communication, eNB-based processing and/or UE-based processing is provided to achieve robust detection of cell ID and SFN timing location using NB-SSS. A base station constructs a NB-SSS signal using a root index of a Zadoff-Chu (ZC) sequence, a scrambling code, a cyclic shift or phase ramping sequence, and an interleaving sequence, wherein a combination of the ZC root index, the scrambling code index, the cyclic shift or phase ramping sequence index, and the interleaving sequence index signals information for a cell identifier (e.g., PCID) and frame timing. The ZC sequence used may be a long ZC sequence constructed to span a total number of tones allocated to an SSS sequence or may be a concatenation of multiple ZC sequences, wherein the concatenated ZC sequences span a total number of tones allocated to an SSS sequence.
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438.发明申请公开(公告)号：US20170289829A1
公开(公告)日：2017-10-05
申请号：US15402927
申请日：2017-01-10
Applicant: QUALCOMM Incorporated
Inventor： Alberto RICO ALVARINO , Wanshi CHEN , Peter GAAL , Hao XU , Aitzaz AHMAD
CPC classification number: H04W24/08 , H04B17/309 , H04L1/0026 , H04W4/70 , H04W72/042 , H04W72/0446
Abstract: The present disclosure proposes indicating to the UE a set of CSI reference subframes that may be used in performing a CSI measurement. The set of CSI reference subframes may be measured over multiple frequencies when frequency hopping occurs. In an aspect of the disclosure, a method, a computer-readable medium, and an apparatus are provided. The apparatus may receive information associated with a number of CSI reference subframes to use in performing CSI measurements in a narrowband communication. In addition, the apparatus may monitor subframes on at least two frequency channels including a PDCCH. Further, the apparatus may perform a CSI measurement across the at least two frequency channels based on the information associated with the number of CSI reference subframes.
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公开(公告)号：US20170265168A1
公开(公告)日：2017-09-14
申请号：US15448931
申请日：2017-03-03
Applicant: QUALCOMM Incorporated
Inventor： Renqiu WANG , Hao XU , Peter GAAL , Alberto RICO ALVARINO , Xiao Feng WANG , Seyed Ali Akbar FAKOORIAN , Jing LEI
CPC classification number: H04W72/0453 , H04L1/08 , H04L27/2607 , H04L67/12 , H04L2001/0093 , H04W4/06 , H04W4/70 , H04W72/005 , H04W72/0446 , H04W72/14
Abstract: NB wireless communication involves numerous challenges. A limited frequency dimension may need to be shared by multiple users. At times, large data transmissions, including multiple TBs of data may be transmitted using NB communication, and it may be important that each TB be successfully received by the users. The apparatus may transmit data comprising a plurality of TBs in a narrow band communications system, including repeating a transmission of the plurality of TBs, using any of a number of repetition patterns. The apparatus may use error correction encoding across multiple TBs. The transmission may be a single cell transmission or a multi-cell transmission.
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公开(公告)号：US20170238292A1
公开(公告)日：2017-08-17
申请号：US15428242
申请日：2017-02-09
Applicant: QUALCOMM Incorporated
Inventor： Alberto RICO ALVARINO , Xiao feng WANG , Hao XU , Wanshi CHEN , Peter GAAL , Juan MONTOJO , Seyed Ali Akbar FAKOORIAN
CPC classification number: H04W72/044 , H04L5/0048 , H04W4/00 , H04W4/023 , H04W4/70 , H04W48/00 , H04W48/12 , H04W48/16 , H04W68/005 , H04W74/0833
Abstract: Aspects of the present disclosure provide techniques and apparatus for multiple physical resource block (PRB) operations for narrowband (NB) systems, such as NB internet-of-things (IoT). In one aspect, a method is provided which may be performed by a wireless device such as a user equipment (UE), which may be an NB-IoT device. The method generally includes performing a cell search based on one or more signals received in an anchor RB within a set of RBs available for narrowband communications with a base station (BS); determining a location of at least one additional RB available for the narrowband communications with the BS based on an indication received in the anchor RB; and performing narrowband communications with the BS using at least one of: the anchor RB or the at least one additional resource block.
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