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公开(公告)号：US20190082403A1
公开(公告)日：2019-03-14
申请号：US16124501
申请日：2018-09-07
Applicant: QUALCOMM Incorporated
Inventor： Heechoon LEE , Tao Luo , Hung Dinh Ly , Muhammad Nazmul Islam , Yang Yang
Abstract: Certain aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment may receive a communication that includes system information, wherein the system information includes information associated with identifying a set of resources that carry synchronization communications, wherein the set of resources is included in a set of potential resources on which synchronization communications can be carried; and perform, based at least in part on a rate matching rule, de-rate matching associated with receiving the system information, wherein the rate matching rule is a rule associated with performing de-rate matching with respect to the set of potential resources. Numerous other aspects are provided.
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公开(公告)号：US20190053320A1
公开(公告)日：2019-02-14
申请号：US16033013
申请日：2018-07-11
Applicant: QUALCOMM Incorporated
Inventor： Muhammad Nazmul Islam , Ashwin Sampath , Sundar Subramanian , Juergen Cezanne , Sumeeth Nagaraja , Jianghong Luo
Abstract: Methods, systems, and devices for wireless communication are described for discontinuous reception (DRX) wake up procedures over millimeter wave (mmW) frequency resources. A base station may use multiple antenna ports to transmit one or more beamformed downlink transmissions to a user equipment (UE). The downlink transmissions may include beam-swept reference signals, and the UE may initiate a wake up procedure prior to a configured DRX-On cycle to receive the reference signals. Based on the reception of the reference signals, the UE may train a set of receive beams and determine a preferred downlink transmit beam. The base station may subsequently transmit at least a portion of a cell radio network temporary identifier (C-RNTI) in a beam-swept manner, and the UE may evaluate the C-RNTI transmission on the preferred transmit beam. The UE may also transmit an uplink response indicating the preferred transmit beam to receive downlink data.
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公开(公告)号：US20190053162A1
公开(公告)日：2019-02-14
申请号：US16042780
申请日：2018-07-23
Applicant: QUALCOMM Incorporated
Inventor： Muhammad Nazmul Islam , Jianghong Luo , Sumeeth Nagaraja , Ashwin Sampath , Sundar Subramanian
Abstract: Methods, systems, and devices for wireless communication are described. A base station may identify that data is available to be transmitted to a user equipment (UE) that is operating in a discontinuous reception mode. The base station may transmit, based at least in part on identifying that the data is available to be transmitted to the UE, a wakeup message to the UE using a first transmit beam. The base station may initiate a beam management procedure based at least in part on identifying that the data is available to be transmitted to the UE, to identify a second transmit beam for the base station to use to transmit the available data to the UE, wherein the second transmit beam comprises a narrower beam width than the first transmit beam.
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公开(公告)号：US10187169B2
公开(公告)日：2019-01-22
申请号：US15270879
申请日：2016-09-20
Applicant: QUALCOMM Incorporated
Inventor： Bilal Sadiq , Tao Luo , Juergen Cezanne , Navid Abedini , Krishna Kiran Mukkavilli , Muhammad Nazmul Islam , Sundar Subramanian , Ashwin Sampath
Abstract: Methods, systems, and devices for wireless communication are described. Some examples provide for identifying a primary synchronization signal (PSS) sequence of a synchronization subframe, determining, for the synchronization subframe, an extended synchronization signal (ESS) sequence based at least in part on the PSS sequence and transmitting the synchronization subframe. Other examples provide for generating an ESS sequence for a synchronization subframe to be communicated to a UE, scrambling the ESS sequence based at least in part on cell-specific information associated with the base station and transmitting, to the UE, the scrambled ESS sequence in the synchronization subframe.
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公开(公告)号：US20180376438A1
公开(公告)日：2018-12-27
申请号：US16008748
申请日：2018-06-14
Applicant: QUALCOMM Incorporated
Inventor： Muhammad Nazmul Islam , Navid Abedini , Junyi Li , Bilal Sadiq , Chinmay Vaze , Sumeeth Nagaraja , Juergen Cezanne
Abstract: Methods, systems, and devices for wireless communication are described. A user equipment (UE) being served by a first cell may receive a synchronization signal (SS) block from the first cell. The UE may also receive an SS block from a second cell. The first cell may determine synchronization assistance information for the second cell and transmit the synchronization assistance information to the UE. The UE may use the synchronization assistance information to determine the index for the SS block from the second cell. For example, the synchronization assistance information may indicate that the UE is to use the index of the SS block from the first cell as the index for the SS block from the second cell. Once the index for the SS block from the second cell is determined, the UE may identify the subframe or slot timing used by the second cell and proceed with cell acquisition.
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Patent Agency Ranking
公开(公告)号：US10159035B2
公开(公告)日：2018-12-18
申请号：US14842679
申请日：2015-09-01
Applicant: QUALCOMM Incorporated
Inventor： Muhammad Nazmul Islam , Sundar Subramanian , Ashwin Sampath , Junyi Li
Abstract: Method, systems, and apparatuses are described for discovery operations in a millimeter wave wireless communication system. A first base station of the millimeter wave wireless communication system may determine a timing parameter and a propagation parameter associated with a second base station of the millimeter wave wireless communication system. The first base station may perform a discovery procedure with the second base station based at least in part on the timing parameter and the propagation parameter. At least a portion of the discovery procedure may be performed wirelessly via the millimeter wave wireless communication system. The first base station may establish a backhaul communication link with the second base station based on the discovery procedure.
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公开(公告)号：US10129052B2
公开(公告)日：2018-11-13
申请号：US15000657
申请日：2016-01-19
Applicant: QUALCOMM Incorporated
Inventor： Sundar Subramanian , Muhammad Nazmul Islam , Juergen Cezanne , Junyi Li , Krishna Kiran Mukkavilli
Abstract: Methods, systems, devices, and apparatuses are described for phase noise estimation. A transmitting device identifies a phase noise metric associated with a receiving device. The phase noise metric provides an indication of the expected phase noise for the receiving device. The transmitting device selects a plurality of pilot tones adjacent to each other and a plurality of null tones for a transmission to the receiving device based on the phase noise metric. The plurality of null tones may be adjacent to and on both sides of the pilot tones in the frequency domain. The transmitting device identifies its own phase noise metric and select the pilot tones adjacent to each other and plurality of null tones in further consideration of its own phase noise metric. The receiving device may use the pilot tones and plurality of adjacent null tones to determine a phase noise estimation for the transmission.
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公开(公告)号：US10111255B2
公开(公告)日：2018-10-23
申请号：US15372059
申请日：2016-12-07
Applicant: QUALCOMM Incorporated
Inventor： Muhammad Nazmul Islam , Tao Luo , Bilal Sadiq , Juergen Cezanne , Junyi Li
Abstract: Methods, systems, and devices for wireless communication are described. A user equipment (UE) may identify a number of beam directions that satisfy a transmission power condition. The UE may select a beam direction for a random access signal by choosing one of the beam directions that satisfies additional criteria, such as transmitting a random access message at the next opportunity. The transmission power may be selected based on a target receive power and a path loss for the selected beam. In some cases, if the sum of the path loss for a beam direction and the target receive power exceeds a maximum transmission power by more than a predetermined amount, the random access signal will not be transmitted using that beam. In some cases, if a response to the random access is not received, a different beam direction may be selected, the transmission power may be increased, or both.
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公开(公告)号：US20180295590A1
公开(公告)日：2018-10-11
申请号：US15934784
申请日：2018-03-23
Applicant: QUALCOMM Incorporated
Inventor： Navid Abedini , Hung Ly , Tao Luo , Bilal Sadiq , Muhammad Nazmul Islam , Sundar Subramanian
CPC classification number: H04W56/001 , H04L5/0048 , H04L5/0051 , H04L5/0064 , H04L5/0091
Abstract: Methods, systems, and devices for wireless communication are described that provide for synchronization signal (SS) blocks in which synchronization signals and broadcast channel transmissions may be transmitted. Broadcast channel transmissions may be demodulated using SS transmissions, reference signal transmissions, or combinations thereof. Broadcast channel transmissions may be transmitted in a subset of SS block time resources, and synchronization signals may be transmitted in another subset of SS block time resources. Reference signals may be transmitted using tones within the broadcast channel time resources, and may be transmitted at a higher density for portions of the broadcast channel transmission bandwidth that are outside of the SS transmission bandwidth. Waveforms for reference signal transmissions, and information provided by reference signal transmissions may be provided.
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610.发明申请公开(公告)号：US20180288737A1
公开(公告)日：2018-10-04
申请号：US15915591
申请日：2018-03-08
Applicant: QUALCOMM Incorporated
Inventor： Muhammad Nazmul Islam
Abstract: Methods, systems, and devices for wireless communication are described. A base station may use quasi co-located antenna ports for transmission of synchronization signal(s)/reference signal(s) and paging signals. For example, the base station may use a first antenna port configuration for transmission of the synchronization/reference signal(s) and a second antenna port configuration for transmission of the paging signal (e.g., paging indicator, paging message, etc.). The base station may transmit an indication of the quasi co-located antenna ports. A user equipment (UE) may receive the synchronization signal and, based on the antenna ports being quasi co-located, receive the paging signal. In some examples, the UE may determine which receive beam to use to receive the paging signal based on the antenna ports being quasi co-located. In some aspects, the UE may use a reference signal transmitted on antenna ports that are quasi co-located with the paging signal antenna ports.
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