公开(公告)号：US20200313810A1

公开(公告)日：2020-10-01

申请号：US16900871

申请日：2020-06-13

Applicant: QUALCOMM Incorporated

Inventor： Srinivas YERRAMALLI ,  Xiaoxia Zhang ,  Jing Sun

IPC: H04L1/18 ,  H04L1/16 ,  H04L5/00 ,  H04W72/14

Abstract: Methods, systems, and devices for wireless communication are described. A user equipment (UE) may receive a transport block (TB) of data from a network, decode the TB of data, transmit to the network a first acknowledgement based on a result of the decoding, receive a signal from the network that includes an acknowledgement retransmission request and a TB indication that indicates a TB of data to which the acknowledgement retransmission request relates, determine a second acknowledgement based on the acknowledgement retransmission request and the TB indication, and transmit the second acknowledgement to the network.

公开(公告)号：US20190387532A1

公开(公告)日：2019-12-19

申请号：US16432470

申请日：2019-06-05

Applicant: QUALCOMM Incorporated

Inventor： Chih-Hao LIU ,  Srinivas YERRAMALLI ,  Tamer KADOUS

IPC: H04W72/12 ,  H04B1/713

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a base station may schedule a plurality of repetitions of at least one system information block for a plurality of dwells within a hop cycle, wherein a subset of dwells, of the plurality of dwells within the hop cycle, includes a resource allocated for a respective portion of a corresponding repetition of a corresponding system information block of the plurality of repetitions of the at least one system information block. The base station may transmit, during the subset of dwells of the plurality of dwells within the hop cycle, the respective portion of the corresponding repetition of the corresponding system information block or another signal punctured into the respective portion of the corresponding repetition of the corresponding system information block. Numerous other aspects are provided.

公开(公告)号：US20190238219A1

公开(公告)日：2019-08-01

申请号：US16258454

申请日：2019-01-25

Applicant: QUALCOMM Incorporated

Inventor： Chih-Hao LIU ,  Srinivas YERRAMALLI ,  Tamer Adel KADOUS

IPC: H04B7/26 ,  H04L5/14 ,  H04L5/00 ,  H04W72/04 ,  H04W72/12

CPC classification number: H04B7/2656 ,  H04L5/0012 ,  H04L5/14 ,  H04W72/042 ,  H04W72/1215

Abstract: Aspects of the disclosure relate to a dynamic, configurable time division duplex (TDD) frame structure for hopping superframes utilized in narrowband Internet of Things (NB-IOT) wireless communication systems. The configurable frame structure includes an anchor segment residing on a plurality of anchor hopping frequencies and a data segment residing on one of a plurality of non-anchor hopping frequencies. The data segment includes a downlink portion, an uplink portion, and a configurable portion between the downlink control portion and the uplink control portion that may be configured to include at least one of downlink information or uplink information.

公开(公告)号：US20180338299A1

公开(公告)日：2018-11-22

申请号：US16048218

申请日：2018-07-27

Applicant: QUALCOMM Incorporated

Inventor： Chih-Hao LIU ,  Srinivas YERRAMALLI ,  Tamer KADOUS

IPC: H04W68/02 ,  H04W8/00 ,  H04W72/04 ,  H04L5/00 ,  H04W28/04 ,  H04W16/14

CPC classification number: H04W68/02 ,  H04L5/0048 ,  H04W8/005 ,  H04W16/14 ,  H04W28/04 ,  H04W72/0446

Abstract: In an embodiment, an apparatus (e.g., eNB) pages UEs on a shared communication. The apparatus obtains paging message(s) for transmission to UEs with different coverage levels. The apparatus transmits an extended common ePDCCH, followed by a paging ePDCCH, followed by repetitive transmissions of the paging message(s) over a plurality of PDSCH subframes. In a further embodiment, the apparatus obtains first and second sets of paging messages for transmission to different paging groups. The apparatus establishes non-overlapping POWs for the first and second paging groups to avoid a paging ePDCCH collision.

公开(公告)号：US20180332551A1

公开(公告)日：2018-11-15

申请号：US15855442

申请日：2017-12-27

Applicant: QUALCOMM Incorporated

Inventor： Chih-Hao LIU ,  Srinivas YERRAMALLI ,  Tamer KADOUS

IPC: H04W56/00

Abstract: Methods, systems, and devices for wireless communication are described for synchronization for wideband coverage enhancement. A user equipment (UE) may receive a primary synchronization signal (PSS) and a secondary synchronization signal (SSS) in a subframe. In one example, the SSS may be received in a symbol that is after a symbol in which the PSS is received, and after a set of symbols in which a set of other synchronization signals is received. In another example, the PSS may be received in each of a first plurality of consecutive symbols, and the SSS may be received in each of a second plurality of consecutive symbols, wherein the second plurality of consecutive symbols is after the first plurality of consecutive symbols within the subframe. The UE may synchronize with a base station based at least in part on the PSS and the SSS. Numerous other aspects are provided.

公开(公告)号：US20180270818A1

公开(公告)日：2018-09-20

申请号：US15986758

申请日：2018-05-22

Applicant: QUALCOMM Incorporated

Inventor： Srinivas YERRAMALLI ,  Wanshi CHEN ,  Peter GAAL ,  Xiaoxia ZHANG

IPC: H04W72/04 ,  H04W16/14 ,  H04L5/00 ,  H04L1/18

Abstract: In enhanced licensed assisted access (eLAA), providing several approaches to report the CSI measurement may be desirable to provide flexibility in CSI reporting, especially in aperiodic CSI reporting. Further, a difference in using a licensed carrier and an unlicensed carrier may be considered during communication. In addition, assigning different transmit power usage based on different transmission types may be desired. The apparatus may be a user equipment (UE). The apparatus may be a UE. The UE receives a grant for uplink communication. The UE determines a reporting subframe based on the grant. The UE determines whether to select, as a reference subframe, a triggering subframe in which the grant is received or a subframe before the reporting subframe. The UE transmits, in the reporting subframe, channel state information (CSI) measured in the reference subframe.

公开(公告)号：US20180235000A1

公开(公告)日：2018-08-16

申请号：US15955471

申请日：2018-04-17

Applicant: QUALCOMM Incorporated

Inventor： Aleksandar DAMNJANOVIC ,  Tao LUO ,  Srinivas YERRAMALLI ,  Peter GAAL ,  Hao XU ,  Wanshi CHEN

IPC: H04W72/12 ,  H04W72/04 ,  H04W74/00 ,  H04W74/08

Abstract: A method, an apparatus, and a computer program product for wireless communication are provided. A base station transmits a provisional grant uplink assignment to a set of UEs. When a UE receives the provisional grant uplink assignment, the UE performs a clear channel assessment (CCA) operation on a secondary component carrier (SCC) based on the provisional grant UL assignment, the SCC being a contention-based carrier. Then, the UE transmits a schedule request (SR) on the SCC when the CCA operation succeeds. The base station transmits grant confirmation(s) on the SCC in response to the detected SR(s). Once the UE receives a grant confirmation on the SCC in response to the SR, the UE transmits data on the SCC.

公开(公告)号：US20180124776A1

公开(公告)日：2018-05-03

申请号：US15635018

申请日：2017-06-27

Applicant: QUALCOMM Incorporated

Inventor： Srinivas YERRAMALLI ,  Tamer KADOUS ,  Chih-Hao LIU ,  Chirag PATEL ,  Alberto RICO ALVARINO

IPC: H04W72/04 ,  H04L5/00 ,  H04W4/00

Abstract: A method and apparatus for wireless communication in the unlicensed spectrum between an eNB and UEs having different bandwidths, e.g., between a narrowband UE and a wideband eNB. A user equipment apparatus segments an uplink duration in each frame into multiple transmission units for each frequency, wherein a frame comprises an integer number of the transmission units. The apparatus transmits uplink communication based on the multiple transmission units, wherein each transmission unit comprises at least one on period and at least one off period corresponding to each of a plurality of frequencies, wherein during an on period the UE transmits uplink communication on the corresponding frequency and during an off period the UE refrains from transmitting uplink communication on the corresponding frequency. Each transmission unit may comprise multiple on periods and multiple off periods. The on/off periods may be configured by a base station or specified for each frame type.

公开(公告)号：US20180042012A1

公开(公告)日：2018-02-08

申请号：US15461280

申请日：2017-03-16

Applicant: QUALCOMM Incorporated

Inventor： Srinivas YERRAMALLI ,  Wanshi CHEN ,  Peter GAAL ,  Xiaoxia ZHANG

IPC: H04W72/04 ,  H04L5/00 ,  H04W16/14 ,  H04L1/18

CPC classification number: H04W72/0446 ,  H04L1/1861 ,  H04L5/0057 ,  H04W16/14 ,  H04W72/02 ,  H04W72/042

Abstract: In enhanced licensed assisted access (eLAA), providing several approaches to report the CSI measurement may be desirable to provide flexibility in CSI reporting, especially in aperiodic CSI reporting. Further, a difference in using a licensed carrier and an unlicensed carrier may be considered during communication. In addition, assigning different transmit power usage based on different transmission types may be desired. The apparatus may be a user equipment (UE). The apparatus may be a UE. The UE receives a grant for uplink communication. The UE determines a reporting subframe based on the grant. The UE determines whether to select, as a reference subframe, a triggering subframe in which the grant is received or a subframe before the reporting subframe. The UE transmits, in the reporting subframe, channel state information (CSI) measured in the reference subframe.

公开(公告)号：US20180020360A1

公开(公告)日：2018-01-18

申请号：US15610869

申请日：2017-06-01

Applicant: QUALCOMM Incorporated

Inventor： Srinivas YERRAMALLI ,  Alberto RICO ALVARINO ,  Hao XU ,  Wanshi CHEN ,  Juan MONTOJO ,  Yongbin WEI ,  Peter GAAL

IPC: H04W16/14 ,  H04B1/713 ,  H04W56/00 ,  H04B1/7156

CPC classification number: H04W72/0453 ,  H04B1/713 ,  H04B1/7143 ,  H04B1/7156 ,  H04B1/7183 ,  H04B2001/71563 ,  H04L5/001 ,  H04L5/0012 ,  H04L5/0048 ,  H04L5/0098 ,  H04L27/0006 ,  H04L27/2634 ,  H04L27/2655 ,  H04L67/12 ,  H04W16/14 ,  H04W52/143 ,  H04W52/146 ,  H04W52/346 ,  H04W56/00 ,  H04W56/0005 ,  H04W56/0015 ,  H04W72/042 ,  H04W72/0473 ,  H04W74/006 ,  H04W74/085 ,  H04W76/27 ,  H04W76/28 ,  H04W88/08

Abstract: Various aspects of utilizing narrowband internet of things (NB IOT) communication are still under development. According to an aspect of the disclosure, the apparatus may be a user equipment (UE) for wireless communication via narrowband internet of things (NB IOT) in an unlicensed spectrum using frequency hopping and digital modulation. The UE performs a synchronization with a base station via at least one of a licensed spectrum or the unlicensed spectrum. The UE communicates with the base station based on the synchronization.