公开(公告)号：US20180331788A1

公开(公告)日：2018-11-15

申请号：US15973365

申请日：2018-05-07

Applicant: QUALCOMM Incorporated

Inventor： Hobin KIM ,  Hari SANKAR ,  Alexei Yurievitch GOROKHOV ,  Michael Lee MCCLOUD ,  Joseph Binamira SORIAGA

IPC: H04L1/08 ,  H04L5/00

CPC classification number: H04L1/08 ,  H04L1/007 ,  H04L1/0086 ,  H04L1/1893 ,  H04L5/0046 ,  H04L5/0055 ,  H04W92/10

Abstract: Aspects of the present disclosure relate to retransmissions of data within wireless communication networks. For a retransmission, at least a portion of the encoded bits of an original transmission may be mapped to different bit locations in one or more modulated symbols based on a non-random mapping rule. In some examples, the encoded bits of a symbol may be reversed within the symbol for a retransmission. In other examples, the first and last encoded bits within a symbol may be switched for a retransmission. Other non-random mapping rules, such as a bit location offset, may also be used to map encoded bits to different bit locations in the modulated symbol within a retransmission.

公开(公告)号：US20170048919A1

公开(公告)日：2017-02-16

申请号：US15232672

申请日：2016-08-09

Applicant: QUALCOMM Incorporated

Inventor： Peter GAAL ,  Srinivas YERRAMALLI ,  Durga Prasad MALLADI ,  Yongbin WEI ,  Alexei Yurievitch GOROKHOV ,  Brian BANISTER ,  Michael Lee MCCLOUD ,  Tao LUO ,  Supratik BHATTACHARJEE ,  Chengjin ZHANG ,  Ravi Teja SUKHAVASI

IPC: H04W76/04 ,  H04W72/00 ,  H04W72/14 ,  H04W72/04 ,  H04B7/06

Abstract: Various aspects related to techniques for harmonization between common reference signal (CRS) and demodulation reference signal (DM-RS) based transmission modes (TMs) in unlicensed spectrum are described. In one aspect, a downlink/uplink (DL/UL) subframe configuration may be signaled for each subframe. Information provided by the DL/UL subframe configuration may indicate whether the respective downlink subframe is a single-frequency network (MBSFN) subframe (associated with DM-RS-based TM) or a non-MBSFN subframe (associated with CRS-based TM). In another aspect, periodic as well as aperiodic channel state information (CSI) reporting requests may be supported. In yet another aspect, discontinued reception (DRX) wake ups for unlicensed carriers may be explicitly or implicitly indicated to a user equipment (UE) via a carrier in a licensed spectrum.

Abstract translation: 描述与非许可频谱中的公共参考信号（CRS）和基于解调参考信号（DM-RS）的传输模式（TM）之间的协调技术相关的各个方面。 在一个方面，可以为每个子帧发信号通知下行链路/上行链路（DL / UL）子帧配置。 由DL / UL子帧配置提供的信息可以指示相应的下行链路子帧是单频网络（MBSFN）子帧（与基于DM-RS的TM相关联）还是非MBSFN子帧（与基于CRS的TM相关联） 。 在另一方面，可以支持周期性和非周期性信道状态信息（CSI）报告请求。 在另一方面，可以通过许可频谱中的运营商向用户设备（UE）明确地或隐含地指示用于未授权载体的中断接收（DRX）唤醒。

公开(公告)号：US20240236726A9

公开(公告)日：2024-07-11

申请号：US18047995

申请日：2022-10-19

Applicant: QUALCOMM Incorporated

Inventor： Yongle WU ,  Francesco GATTA ,  Alexei Yurievitch GOROKHOV ,  Hari SANKAR ,  Christos KOMNINAKIS ,  Michael Lee MCCLOUD

IPC: H04W24/08

CPC classification number: H04W24/08

Abstract: A UE may attempt, based on a first mode, to identify a first opportunity within a preconfigured time period for a measurement associated with at least one SCC when the at least one SCC is deactivated at the UE and the measurement associated with the at least one SCC is due based on a scheduling. Based on the first mode, a radio of the UE may not be tuned to the at least one SCC when the at least one SCC is deactivated at the UE and no measurement associated with the at least one SCC is being performed at the UE. The UE may perform, if the first opportunity is identified within the preconfigured time period, the measurement associated with the at least one SCC at the identified first opportunity.

公开(公告)号：US20230417870A1

公开(公告)日：2023-12-28

申请号：US17808745

申请日：2022-06-24

Applicant: QUALCOMM Incorporated

Inventor： Tharun Adithya SRIKRISHNAN ,  Intae KANG ,  Supratik BHATTACHARJEE ,  Christos KOMNINAKIS ,  Michael Lee MCCLOUD ,  Gautham HARIHARAN ,  Minkui LIU ,  Gary John BALLANTYNE

IPC: G01S7/40 ,  G01S13/42

CPC classification number: G01S7/4008 ,  G01S13/42

Abstract: Certain aspects of the present disclosure provide techniques for identifying a minimal, or at least reduced, set of representative calibration paths in radio frequency (RF) circuits and calibrating other calibration paths based on calibration codes used for the representative calibration paths. An example method generally includes receiving a calibration data set including measurements associated with each calibration path of a plurality of calibration paths in an RF circuit. Based on a clustering model and the calibration data set, a plurality of calibration clusters is generated. From each respective calibration cluster of the plurality of calibration clusters, a respective representative calibration path for is selected for the respective calibration cluster. Generally, calibration codes generated for the representative calibration path are applicable to other calibration paths in the calibration cluster. A lookup table is generated associating a respective calibration path with other calibration paths in each respective calibration cluster.

公开(公告)号：US20180351697A1

公开(公告)日：2018-12-06

申请号：US15963474

申请日：2018-04-26

Applicant: QUALCOMM Incorporated

Inventor： Hobin KIM ,  Hari SANKAR ,  Alexei Yurievitch GOROKHOV ,  Michael Lee MCCLOUD ,  Joseph Binamira SORIAGA

IPC: H04L1/00 ,  H03M13/11 ,  H04W28/04

CPC classification number: H04L1/0058

Abstract: A new radio (NR) bit prioritization procedure that may be executed by a UE and a base station is disclosed, resulting in transmission and reception of modulation symbols having prioritized bits. For example, a transmitter may encode a code block using low-density parity-check code to generate a stream of encoded bits. The transmitter may arrange the encoded bits in one or more modulation symbols according to a relative priority of the encoded bits. The highest priority bits may be located in the most significant bits of the modulation symbol, and therefore be less likely to experience errors. A receiver may receive the modulation symbols and reorder the encoded bits according to the coding scheme based on the relative priority prior to decoding the encoded bits. The prioritization of the bits within the modulation symbols may provide improved block error rates over sequential mapping of encoded bits to symbols.

公开(公告)号：US20140241269A1

公开(公告)日：2014-08-28

申请号：US14186953

申请日：2014-02-21

Applicant: QUALCOMM INCORPORATED

Inventor： John Edward SMEE ,  Jean-Marie Quoc Danh TRAN ,  Michael Lee MCCLOUD ,  Peter John BLACK ,  Alexei Yurievitch GOROKHOV

IPC: H04W72/04

CPC classification number: H04W72/042 ,  H04L1/1819 ,  H04L1/1835 ,  H04L1/1845

Abstract: Techniques and apparatus are provided for conditional offload of one or more LLRs or decoded bits. An exemplary electronic device (ED) method includes receiving a transmission of a physical downlink shared channel (PDSCH) having a transport block (TB) comprising at least one code block (CB), performing a cyclic redundancy check (CRC) of the at least one CB, in a memory external to a modem core of the ED, storing a subset of log-likelihood ratios (LLRs) associated with the at least one CB if the at least one CB failed the CRC or decoded bits associated with the at least one CB if the at least one CB passed the CRC, wherein the subset is based on an LLR range of the transmission relative to an LLR range of one or more previous transmissions, and using the stored subset of LLRs or decoded bits to process a re-transmission of the PDSCH.

Abstract translation: 为一个或多个LLR或解码比特的条件卸载提供技术和装置。 示例性电子设备（ED）方法包括接收具有包括至少一个码块（CB）的传输块（TB）的物理下行链路共享信道（PDSCH）的传输，执行至少 一个CB，在ED的调制解调器核心外部的存储器中，如果所述至少一个CB失败了所述CRC或与所述至少一个相关联的解码比特，则存储与所述至少一个CB相关联的对数似然比（LLR）的子集 一个CB，如果所述至少一个CB通过所述CRC，其中所述子集基于所述传输的相对于一个或多个先前传输的LLR范围的LLR范围，并且使用所存储的LLR或解码比特的子集来处理re 发送PDSCH。

公开(公告)号：US20220345987A1

公开(公告)日：2022-10-27

申请号：US17721098

申请日：2022-04-14

Applicant: QUALCOMM Incorporated

Inventor： Thawatt GOPAL ,  Michael Lee MCCLOUD ,  David MALDONADO ,  Joseph David PAULINO ,  Sridhar BANDARU ,  Shriram GURUMOORTHY

IPC: H04W40/24 ,  H04W40/16 ,  H04B17/336 ,  H04L5/00

Abstract: Aspects of the present disclosure relate to wireless communications, and more particularly, to techniques for a UE to determine whether to maintain or remove a radio frequency (RF) path from a set of candidate paths considered for transmit antenna switch diversity (ASDIV). The determination allows the UE to avoid signal loss or degradation in coexisting networks at similar frequency ranges. For example, ASDIV allows two or more antennas to form different input and output ports to establish different RF paths. Coexistent networks, such as wireless wide-area-network (WWAN) and wireless local-area-network (WLAN) may utilize different RF paths to optimize reliability and efficiency. The overlapping of the bands may cause signal attenuation or degradation from at least one of the networks. The present disclosure provides techniques for detecting signal attenuation at least partially caused by overlapping bands and removing an associated RF path to avoid such signal loss or attenuation.

公开(公告)号：US20220231787A1

公开(公告)日：2022-07-21

申请号：US17657938

申请日：2022-04-04

Applicant: QUALCOMM Incorporated

Inventor： Hobin KIM ,  Hari SANKAR ,  Alexei Yurievitch GOROKHOV ,  Michael Lee MCCLOUD ,  Joseph Binamira SORIAGA

IPC: H04L1/00 ,  H03M13/11 ,  H04W28/04

Abstract: A new radio (NR) bit prioritization procedure that may be executed by a UE and a base station is disclosed, resulting in transmission and reception of modulation symbols having prioritized bits. For example, a transmitter may encode a code block using low-density parity-check code to generate a stream of encoded bits. The transmitter may arrange the encoded bits in one or more modulation symbols according to a relative priority of the encoded bits. The highest priority bits may be located in the most significant bits of the modulation symbol, and therefore be less likely to experience errors. A receiver may receive the modulation symbols and reorder the encoded bits according to the coding scheme based on the relative priority prior to decoding the encoded bits. The prioritization of the bits within the modulation symbols may provide improved block error rates over sequential mapping of encoded bits to symbols.

公开(公告)号：US20180176040A1

公开(公告)日：2018-06-21

申请号：US15841527

申请日：2017-12-14

Applicant: QUALCOMM Incorporated

Inventor： Yongle WU ,  Pengkai ZHAO ,  Supratik BHATTACHARJEE ,  Amir FARAJIDANA ,  Wenshu ZHANG ,  Michael Lee MCCLOUD

IPC: H04L25/02

Abstract: Certain aspects of the present disclosure relate to techniques for estimating a channel using soft-windowing. A user equipment (UE) may determine, based on a cyclic prefix (CP) length of a channel, a timing window for sampling reference signals transmitted on the channel, determine a set of weights to apply to samples obtained within the determined timing window, wherein each weight corresponds to a sample obtained within the determined window, and estimate the channel by applying the weights to the samples.

公开(公告)号：US20150282191A1

公开(公告)日：2015-10-01

申请号：US14639058

申请日：2015-03-04

Applicant: QUALCOMM Incorporated

Inventor： Tao LUO ,  Michael Lee MCCLOUD ,  Brian Clarke BANISTER ,  Peter GAAL ,  Aleksandar DAMNJANOVIC ,  Yongbin WEI ,  Hao XU ,  Tingfang JI ,  Siddhartha MALLIK ,  Alexei Yurievitch GOROKHOV ,  Arumugam CHENDAMARAI KANNAN

IPC: H04W72/08 ,  H04L5/00

CPC classification number: H04W72/082 ,  H04B1/7107 ,  H04B7/0632 ,  H04B7/068 ,  H04B7/0684 ,  H04J11/005 ,  H04L1/0026 ,  H04L5/0048 ,  H04W24/10

Abstract: Reported CSI may not reflect non-cancelable CRS interference received from an interfering cell, such as when the CSI is computed when CRS interference is not received. To address the issue, a user equipment (UE) may determine an interference cancelation/suppression efficiency (CSE) associated with canceling/suppressing interference from interfering cells. In addition, based on the determined CSE, a UE may compute CSI such that the CSI reflects the true cancelation efficiency of the UE with respect to interfering cell signals. When computing the CSI based on the determined CSE, the UE may report that the CSI is worse than it is to reflect the UE's true cancelation efficiency with respect to the interfering cell signals.

Abstract translation: 报告的CSI可能不反映从干扰小区接收的不可取消的CRS干扰，例如当没有接收到CRS干扰时计算CSI。 为了解决该问题，用户设备（UE）可以确定与抵消/抑制来自干扰小区的干扰相关联的干扰消除/抑制效率（CSE）。 另外，基于所确定的CSE，UE可以计算CSI，使得CSI相对于干扰小区信号反映UE的真实消除效率。 当基于确定的CSE计算CSI时，UE可以报告CSI比反映UE相对于干扰小区信号的真实消除效率更差。