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公开(公告)号：US10171216B2
公开(公告)日：2019-01-01
申请号：US15457900
申请日：2017-03-13
Applicant: QUALCOMM Incorporated
Inventor： Shimman Patel , Wanshi Chen , Seyedkianoush Hosseini , Hao Xu , Peter Gaal , Jing Sun
IPC: H04L5/00 , H04B7/06 , H04L1/00 , H04W72/04 , H04W72/14 , H04B7/0452 , H04B7/0413
Abstract: The present disclosure provides a unique control region that is mapped to each data region for DL DMRS transmissions. In addition, the present disclosure provides an updated DCI format that may include DL DMRS transmissions. The apparatus may receive a first content during a first TTI. In an aspect, the content may include at least a control region which includes a DMRS. In addition, a location of the DMRS may be defined by either a closed-loop precoding structure or an open-loop precoding structure. Furthermore, the duration of the first TTI may be shorter than 1 ms. The apparatus may demodulate the control region based at least on the DMRS.
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公开(公告)号：US20180375628A1
公开(公告)日：2018-12-27
申请号：US16015056
申请日：2018-06-21
Applicant: QUALCOMM Incorporated
Inventor： Heechoon Lee , Makesh Pravin John Wilson , Tao Luo , Jing Sun
Abstract: Methods, systems, and devices for wireless communication are described. In some wireless communications systems, a base station may transmit control information to a user equipment (UE) in a control resource set (coreset) of a transmission time interval (TTI). As described herein, the base station may transmit common control information in a common search space (CSS) of the coreset and a UE-specific control information in a UE-specific search space (USS) of the same coreset. In addition, the base station may transmit reference signals in the coreset to allow the UE to perform channel estimation to correctly decode or demodulate the control information in the CSS and USS of the coreset. In some examples, the reference signals transmitted in the CSS and USS of the coreset may include a common sequence for the coreset.
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公开(公告)号：US20180287734A1
公开(公告)日：2018-10-04
申请号：US15943533
申请日：2018-04-02
Applicant: QUALCOMM Incorporated
Inventor： Heechoon Lee , Peter Gaal , Jing Sun , Wanshi Chen
Abstract: Techniques for monitoring for control information in sets of downlink control channel resources are described, where multiple sets of downlink control channel resources may overlap. The described techniques include monitoring for one or more search spaces in a set of downlink control channel resources by rate matching downlink control channel resources independently of other sets of downlink control channel resources. Alternatively, overlapping sets of downlink control channel resources may be rate-matched accounting for reference signals of overlapping sets of downlink control channel resources.
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公开(公告)号：US20180255561A1
公开(公告)日：2018-09-06
申请号：US15906040
申请日：2018-02-27
Applicant: QUALCOMM Incorporated
Inventor： Sanaz Barghi , Jing Sun , Mohammad Naghshvar , Tamer Kadous
IPC: H04W72/12
CPC classification number: H04W72/1231 , H04B7/0408 , H04J11/0026 , H04L1/0026 , H04L1/20 , H04L5/0073 , H04L27/0006 , H04L27/26 , H04W16/14 , H04W16/28 , H04W72/1273 , H04W74/0816
Abstract: Soft channel reservation in shared spectrum networks is discussed. In network areas where multiple wireless nodes, whether from the same or different network operators, share spectrum using a channel reservation signaling form of contention resolution, an aggressor transmitter listens for a neighbor receiver's receiver channel reservation signal to the neighbor transmitter the neighbor receiver is in communication with. The receiver channel reservation signal includes channel condition information that the aggressor transmitter can use to estimate an interference impact at the neighbor receiver should the aggressor transmitter performs its transmissions to its own receivers. Based on whether this estimated interference impact exceeds or remains within a particular threshold, the aggressor transmitter may decide whether or not to back off of its transmissions until a later time.
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公开(公告)号：US20180242315A1
公开(公告)日：2018-08-23
申请号：US15710698
申请日：2017-09-20
Applicant: QUALCOMM Incorporated
Inventor： Jing Sun , Seyedkianoush Hosseini , Jing Jiang
CPC classification number: H04W72/0446 , H04L1/1822 , H04L1/1845 , H04L1/1861 , H04L1/1887 , H04L1/1893 , H04W72/042
Abstract: Techniques are described that provide for generation of a first transport block (TB) that includes a number of code blocks (CBs) that are transmitted to a receiver during a first transmission time interval (TTI) having a first duration, and retransmission of any unsuccessfully received CBs in a second TTI having a duration that is selected from multiple available TTI durations. The second TTI may have a second TTI duration that is shorter than the first TTI duration, and may have CBs only from the first TB. One or more of a time duration or frequency resources of the second TTI may be selected based on the number of CBs that are retransmitted in the second TTI.
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Patent Agency Ranking
公开(公告)号：US20180167848A1
公开(公告)日：2018-06-14
申请号：US15663461
申请日：2017-07-28
Applicant: QUALCOMM Incorporated
Inventor： Jing Lei , Taesang Yoo , Xiaoxia Zhang , Jing Sun , Tamer Kadous
Abstract: Channel reservation systems and methods are disclosed herein, which schedule transmissions on a shared radio medium that is shared by a plurality of licensed network operators. In embodiments, priority access is pre-assigned to the network and the method determines whether to send a transmission based at least on the transmitter's priority class as compared to another transmitter's priority class and to which transmitter the time slot of a signal is dedicated. In embodiments, priority access may not be preassigned to the network and pre-grants may be used in conjunction with CR-Ts and CR-Rs to determine whether a transmitter transmits.
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427.发明申请公开(公告)号：US20180167155A1
公开(公告)日：2018-06-14
申请号：US15891072
申请日：2018-02-07
Applicant: QUALCOMM Incorporated
Abstract: Techniques are described for wireless communication. One method includes searching for a synchronization channel on a first raster point of a frequency raster identified for synchronization channel transmission. The frequency raster includes a plurality of raster points in a radio frequency spectrum. The method also includes identifying a pull-in signal on the first raster point; determining, from the pull-in signal, a second raster point of the frequency raster on which the synchronization channel is transmitted; and receiving the synchronization channel on the second raster point. Another method includes transmitting the pull-in signal and the synchronization channel.
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428.发明申请公开(公告)号：US20180159649A1
公开(公告)日：2018-06-07
申请号：US15828009
申请日：2017-11-30
Applicant: QUALCOMM Incorporated
Abstract: Techniques are described for wireless communication. One method includes searching for a synchronization channel on a first raster point of a frequency raster identified for synchronization channel transmission. The frequency raster includes a plurality of raster points in a radio frequency spectrum. The method also includes identifying a pull-in signal on the first raster point; determining, from the pull-in signal, a second raster point of the frequency raster on which the synchronization channel is transmitted; and receiving the synchronization channel on the second raster point. Another method includes transmitting the pull-in signal and the synchronization channel.
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公开(公告)号：US20180152964A1
公开(公告)日：2018-05-31
申请号：US15824989
申请日：2017-11-28
Applicant: QUALCOMM Incorporated
Inventor： Jing Sun , Tao Luo , Wanshi Chen
CPC classification number: H04W74/006 , H04L5/0007 , H04L5/0053 , H04L5/0092 , H04L7/10 , H04L27/26 , H04L27/2602 , H04L27/2605 , H04L27/2666 , H04W72/042 , H04W72/0446 , H04W72/1252 , H04W72/1273
Abstract: In a radio air interface, a mixed-numerology carrier is one that multiplexes orthogonal frequency division multiplexed (OFDM) waveforms that have different numerologies onto the same carrier. This disclosure provides for a sync signal (SS) enabling channel access for such a mixed-numerology carrier. In one example, a single SS, having a given numerology, supports channel access for a plurality of numerologies on the mixed-numerology carrier. In another example, a plurality of numerologies on the mixed-numerology carrier each has its own respective SS, and a single, common numerology is used for all SS's. In still another example, a plurality of numerologies on the mixed-numerology carrier each has its own respective SS, where each SS has the same numerology as the numerology for which the SS provides channel access.
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430.发明申请公开(公告)号：US20180139772A1
公开(公告)日：2018-05-17
申请号：US15807952
申请日：2017-11-09
Applicant: QUALCOMM Incorporated
Inventor： Ozcan Ozturk , Wanshi Chen , Jing Sun , Shimman Arvind Patel , Seyedkianoush Hosseini
Abstract: Described techniques provide for communications using multiple different transmission time intervals (TTIs) while in a configured DRX mode that allows efficient scheduling and allocation of resources, and relatively efficient power usage at a user equipment (UE). In some cases, two or more available TTIs for transmissions between a base station and a UE may be identified, and a DRX cycle configured based at least in part on the available TTIs. During monitoring periods of a configured DRX cycle for a first TTI, the UE may be configured to monitor for control signal transmissions associated with a different TTI duration. In some cases, resources for a shorter TTI may be allocated using a two-stage grant. In some cases, multiple component carriers may be configured for one or more different TTIs, and one component carrier may be used to cross schedule resources on other component carriers.
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