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411.发明申请公开(公告)号：US20190090231A1
公开(公告)日：2019-03-21
申请号：US16048705
申请日：2018-07-30
Applicant: QUALCOMM Incorporated
Inventor： Xiaoxia Zhang , Kapil Bhattad , Jing Sun , Seyed Ali Akbar Fakoorian
Abstract: Wireless communications systems and methods related to improving multiplexing capability in a frequency spectrum are provided. A first wireless communication device obtains a configuration for communicating a communication signal in a frequency spectrum. The configuration is based on at least a number of wireless communication devices scheduled to communicate in a time period. The configuration indicates resources in the frequency spectrum over the time period and a frequency distribution mode of the resources. The first wireless communication device communicates, with a second wireless communication device, the communication signal in the frequency spectrum during the time period based on the configuration.
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412.发明申请公开(公告)号：US20190059111A1
公开(公告)日：2019-02-21
申请号：US16058678
申请日：2018-08-08
Applicant: QUALCOMM Incorporated
Inventor： Xiaoxia Zhang , Tao Luo , Jing Sun
Abstract: Wireless communications systems and methods related to performing random channel access are provided. A first wireless communication device communicates a random access configuration with a second wireless communication device in a first frequency spectrum. The random access configuration includes information associated with a channel characteristic difference between the first frequency spectrum and the second frequency spectrum. The first wireless communication device communicates a random access signal with the second wireless communication device in the second frequency spectrum based on the random access configuration. The first frequency spectrum is a millimeter wave (mmWav) frequency band. The second frequency spectrum is a non-mmWav frequency band.
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公开(公告)号：US20190037480A1
公开(公告)日：2019-01-31
申请号：US16038888
申请日：2018-07-18
Applicant: QUALCOMM Incorporated
Inventor： Jing Sun , Tao Luo , Xiaoxia Zhang
Abstract: Methods, systems, and devices for wireless communication are described. Some wireless systems may benefit from estimation of location of a user equipment (UE) within the system. Such estimations may be based at least in part on pilot signals received from one or more reference points (e.g., base stations, access points, etc.). However, in some cases, the communication range of the pilot signals may be too small to support location estimation for at least some UEs in the system. Further, the pilot signals may consume time-frequency resources, which may reduce throughput for the system. In accordance with the described techniques, highly detectable pilot signals may coexist with synchronization signal (SS) block transmissions. Such coexistence may improve accuracy of location estimations for some, or all UEs in the system, or otherwise benefit the system.
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公开(公告)号：US20190029040A1
公开(公告)日：2019-01-24
申请号：US16027735
申请日：2018-07-05
Applicant: QUALCOMM Incorporated
Inventor： Jing Sun , Xiaoxia Zhang , Andrei Dragos Radulescu
IPC: H04W74/08 , H04W48/16 , H04B7/0413 , H04W72/04
Abstract: Techniques are described herein for coordinating a random access channel (RACH) procedure with a beam discovery procedure. A timing and configuration of a RACH window may be coordinated with a beam discovery window. By coordinating the two windows, a user equipment (UE) may be configured to use information learned from the beam discovery procedure during the RACH procedure, thereby increasing the likelihood that the RACH procedure is successful. In some cases, the RACH procedure is triggered by the transmission of directional beam reference signals during the beam discovery window. In such cases, the UE determines the timing of the RACH window based at least in part on the receipt of the directional beam reference signals. In some cases, the RACH window is configured using a static configuration relative to the beam discovery window.
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公开(公告)号：US10187864B2
公开(公告)日：2019-01-22
申请号：US15474883
申请日：2017-03-30
Applicant: QUALCOMM Incorporated
Inventor： Taesang Yoo , Juan Montojo , Jing Sun , Zhifei Fan
Abstract: Methods, systems, and devices for wireless communication are described. A base station may establish a transmission gap between downlink (DL) and uplink (UL) transmissions on a shared radio frequency (RF) spectrum band using time division duplex (TDD). A length of the gap may be based at least in part on a maximum allowed length of a filler signal corresponding to a coverage area of the base station. To reserve the shared band, a user equipment (UE) may communicate the filler signal for a length of time that is based at least in part on the maximum allowed length and a geographic distance between the UE and the base station. UEs farther from the base station transmit the filler signal of shorter lengths before sending an UL transmission, so that the UL transmissions from different UEs arrive at the same time at the base station regardless of the geographic distance between the UEs.
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Patent Agency Ranking
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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