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701.
公开(公告)号:US10038528B2
公开(公告)日:2018-07-31
申请号:US14866748
申请日:2015-09-25
Applicant: QUALCOMM Incorporated
Inventor: Jing Jiang , Joseph Binamira Soriaga , Krishna Kiran Mukkavilli , Tingfang Ji , Huilin Xu , Naga Bhushan , Raghuraman Krishnamoorthi , Peter Pui Lok Ang , John Edward Smee
IPC: H04L5/00 , H04L25/02 , H04L12/801 , H04W72/04 , H04L27/26
CPC classification number: H04L5/0048 , H04L5/0026 , H04L5/005 , H04L25/0202 , H04L27/2613 , H04L47/12 , H04W72/0446 , H04W72/0453 , H04W72/0466
Abstract: Systems and techniques are disclosed to reduce pilot overhead by providing common reference signals coded with cover codes that are orthogonal in time and frequency domains. Common reference signals that are coded by cover codes orthogonal in both domains can be de-spread in both the time and frequency domains for improved resolution and larger pull-in windows for both. Also disclosed is semi-uniform pilot spacing in both the frequency and time domains. In a time domain, a first pilot symbol pair is spaced by a first time interval from each other and a second pilot symbol pair is spaced by a second time interval from the first pair, the second interval being greater than the first. In a frequency domain, a first set of pilot symbols is densely placed in a selected frequency band and a second set of pilot symbols is sparsely placed surrounding and including the selected frequency band.
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公开(公告)号:US10003480B2
公开(公告)日:2018-06-19
申请号:US14574149
申请日:2014-12-17
Applicant: QUALCOMM Incorporated
Inventor: Joseph Binamira Soriaga , Tingfang Ji , John Edward Smee , Naga Bhushan , Peter Gaal , Krishna Kiran Mukkavilli , Alexei Yurievitch Gorokhov
CPC classification number: H04L25/03821 , H04J11/0036 , H04L5/0007 , H04L25/03159 , H04L25/03834 , H04L27/2601 , H04L27/2646 , H04W28/20
Abstract: Apparatuses and methods for performing asynchronous multicarrier communications are provided. One such method involves generating, at a first wireless device, a waveform including one or more carriers, shaping the waveform to reduce interference between the waveform and adjacent waveforms, and transmitting, on a spectrum, the shaped waveform asynchronously.
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公开(公告)号:US09967070B2
公开(公告)日:2018-05-08
申请号:US14829060
申请日:2015-08-18
Applicant: QUALCOMM Incorporated
Inventor: Jing Jiang , Joseph Binamira Soriaga , Tingfang Ji , Naga Bhushan , Krishna Kiran Mukkavilli , Peter Gaal , John Edward Smee
IPC: H04L12/26 , H04L5/00 , H04B17/309
CPC classification number: H04L5/0048 , H04B17/309 , H04L5/0007 , H04L5/006 , H04L5/0096
Abstract: Adaptive pilot signaling is disclosed in which resources allocated to pilot symbols are allowed to vary to more closely match channel conditions. User equipments (UEs) may request different pilot configurations depending on channel conditions. In one embodiment, a method includes receiving a first set of pilot symbols using a first number of resource elements during a first transmission time interval (TTI), and receiving a second set of pilot symbols using a second number of resource elements during a second TTI. In the embodiment, the first TTI and the second TTI include the same number of resource elements, and the first number of resource elements is different than the second number of resource elements.
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704.
公开(公告)号:US09936469B2
公开(公告)日:2018-04-03
申请号:US14728756
申请日:2015-06-02
Applicant: QUALCOMM Incorporated
Inventor: Tingfang Ji , Gavin Bernard Horn , John Edward Smee , Joseph Binamira Soriaga , Naga Bhushan , Jing Jiang , Kambiz Azarian Yazdi , Peter Pui Lok Ang , Peter Gaal , Krishna Kiran Mukkavilli , Alexei Yurievitch Gorokhov
CPC classification number: H04W56/0015 , H04L5/0023 , H04L5/0048 , H04L5/005 , H04L5/0051 , H04L5/0053 , H04L5/0058 , H04W4/06 , H04W8/005 , H04W48/14 , H04W56/00 , H04W72/04 , H04W76/20 , H04W76/27 , H04W76/28
Abstract: Methods, systems, and devices are described for wireless communication. In one method, a method of wireless communication at a user equipment (UE) includes receiving a synchronization signal. The synchronization signal may be common to a plurality of cells within a network. The method further includes acquiring a timing of the network based on the synchronization signal, and transmitting a pilot signal in response to acquiring the timing of the network. The pilot signal may identify the UE and be concurrently receivable by the plurality of cells within the network. Other aspects, features, and embodiments are also claimed and described.
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公开(公告)号:US20180077603A1
公开(公告)日:2018-03-15
申请号:US15436531
申请日:2017-02-17
Applicant: QUALCOMM Incorporated
Inventor: Makesh Pravin John Wilson , Tao Luo , Jing Jiang , Sundar Subramanian , Sony Akkarakaran , Atul Maharshi , Krishna Kiran Mukkavilli
Abstract: Methods, systems, and devices for wireless communication are described. A user equipment (UE) may report a phase-noise compensation reference signal (PCRS) configuration to a base station to enable per-UE PCRS signaling. For example, a UE may operate in a wireless communications system using carrier frequencies greater than 6 GHz, which may be affected by phase noise. The UE may accordingly determine a PCRS configuration based on a capability to receive signals. The PCRS configuration may include a resource mapping for one or more PCRS, a number of PCRS ports used for PCRS, a multiplexing scheme for one or more PCRS ports, or the UE's phase noise estimation capability. The UE may then transmit a reporting message including the PCRS configuration to a base station. The base station may use the PCRS configuration for PCRS transmissions to the UE.
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公开(公告)号:US09814058B2
公开(公告)日:2017-11-07
申请号:US15011304
申请日:2016-01-29
Applicant: QUALCOMM Incorporated
Inventor: Jing Jiang , Peter Pui Lok Ang , Tingfang Ji , John Edward Smee , Joseph Binamira Soriaga , Krishna Kiran Mukkavilli
CPC classification number: H04W72/1205 , H04L1/00 , H04L1/1607 , H04L5/0007 , H04L5/0044 , H04L5/0055 , H04L5/1469
Abstract: In an aspect of the disclosure, a method, a computer program product, and an apparatus are provided. The method may be performed by a scheduling entity. The scheduling entity transmits control information in a control portion of the subframe, the control information corresponding to data information within the subframe, transmits the data information in a data portion of the subframe, receives a pilot signal from the set of subordinate entities in a pilot portion of the subframe, and receives an ACK/NACK signal from the set of subordinate entities in an ACK portion of the subframe. The ACK portion is subsequent to the pilot portion of the subframe. The ACK/NACK signal includes acknowledgment information corresponding to the data information. The control portion, the data portion, the pilot portion, and the ACK portion are contained in the same subframe.
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707.
公开(公告)号:US20170280387A1
公开(公告)日:2017-09-28
申请号:US15617960
申请日:2017-06-08
Applicant: QUALCOMM Incorporated
Inventor: Peter Pui Lok Ang , Joseph Patrick Burke , Tingfang Ji , Naga Bhushan , Krishna Kiran Mukkavilli , Joseph Binamira Soriaga , John Edward Smee
CPC classification number: H04W52/0212 , H04L1/0018 , H04W52/0206 , H04W52/0209 , H04W52/0216 , H04W52/028 , H04W72/042 , H04W72/0453 , H04W72/048 , Y02D70/00 , Y02D70/1222 , Y02D70/1242 , Y02D70/1262 , Y02D70/1264 , Y02D70/142 , Y02D70/146
Abstract: Systems, methods, apparatuses, and computer-program products for performing dynamic bandwidth switching between control signals and data signals of differing bandwidths are disclosed. A wireless communication apparatus comprises a memory and a processor coupled to the memory. The processor is configured to transmit a control signal to a user equipment (UE) using a first bandwidth. The processor is further configured to transmit a data signal to the UE using a second bandwidth wider than the first bandwidth. The control signal and the data signal are transmitted over a single carrier frequency. The control signal comprises an indication of a characteristic of the data signal. The data signal is transmitted after the control signal such that the data signal and control signal are separated by a time interval. The time interval is based on at least a switching latency of the UE.
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公开(公告)号:US20170279553A1
公开(公告)日:2017-09-28
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
CPC classification number: H04J11/0073 , H04J11/0069 , H04L25/03866 , H04L27/261 , H04L27/2675 , H04W56/001
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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709.
公开(公告)号:US20170171830A1
公开(公告)日:2017-06-15
申请号:US15445616
申请日:2017-02-28
Applicant: QUALCOMM Incorporated
Inventor: Tingfang Ji , Gavin Bernard Horn , John Edward Smee , Joseph Binamira Soriaga , Naga Bhushan , Jing Jiang , Kambiz Azarian Yazdi , Peter Pui Lok Ang , Peter Gaal , Krishna Kiran Mukkavilli , Alexei Yurievitch Gorokhov
CPC classification number: H04W56/0015 , H04L5/0023 , H04L5/0048 , H04L5/005 , H04L5/0051 , H04L5/0053 , H04L5/0058 , H04W4/06 , H04W8/005 , H04W48/14 , H04W56/00 , H04W72/04 , H04W76/20 , H04W76/27 , H04W76/28
Abstract: Methods, systems, and devices are described for wireless communication. In one method, a method of wireless communication at a user equipment (UE) includes receiving a synchronization signal. The synchronization signal may be common to a plurality of cells within a network. The method further includes acquiring a timing of the network based on the synchronization signal, and transmitting a pilot signal in response to acquiring the timing of the network. The pilot signal may identify the UE and be concurrently receivable by the plurality of cells within the network. Other aspects, features, and embodiments are also claimed and described.
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710.
公开(公告)号:US20170171829A1
公开(公告)日:2017-06-15
申请号:US15445572
申请日:2017-02-28
Applicant: QUALCOMM Incorporated
Inventor: Tingfang Ji , Gavin Bernard Horn , John Edward Smee , Joseph Binamira Soriaga , Naga Bhushan , Jing Jiang , Kambiz Azarian Yazdi , Peter Pui Lok Ang , Peter Gaal , Krishna Kiran Mukkavilli , Alexei Yurievitch Gorokhov
CPC classification number: H04W56/0015 , H04L5/0023 , H04L5/0048 , H04L5/005 , H04L5/0051 , H04L5/0053 , H04L5/0058 , H04W4/06 , H04W8/005 , H04W48/14 , H04W56/00 , H04W72/04 , H04W76/20 , H04W76/27 , H04W76/28
Abstract: Methods, systems, and devices are described for wireless communication. In one method, a method of wireless communication at a user equipment (UE) includes receiving a synchronization signal. The synchronization signal may be common to a plurality of cells within a network. The method further includes acquiring a timing of the network based on the synchronization signal, and transmitting a pilot signal in response to acquiring the timing of the network. The pilot signal may identify the UE and be concurrently receivable by the plurality of cells within the network. Other aspects, features, and embodiments are also claimed and described.
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