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    TECHNIQUES FOR CONFIGURING UPLINK CHANNELS IN UNLICENSED RADIO FREQUENCY SPECTRUM BANDS
    281.
    发明申请
    TECHNIQUES FOR CONFIGURING UPLINK CHANNELS IN UNLICENSED RADIO FREQUENCY SPECTRUM BANDS 审中-公开
    在无线电频谱范围内配置上行通道的技术

    公开(公告)号：US20150181589A1

    公开(公告)日：2015-06-25

    申请号：US14503584

    申请日：2014-10-01

    Applicant: QUALCOMM Incorporated

    Inventor： Tao Luo ,  Wanshi Chen ,  Durga Prasad Malladi ,  Yongbin Wei ,  Naga Bhushan ,  Aleksandar Damnjanovic ,  Srinivas Yerramalli ,  Tingfang Ji ,  Hao Xu ,  Peter Gaal

    IPC: H04W72/04 ,  H04B7/04 ,  H04W74/08 ,  H04L5/00

    CPC classification number: H04W72/0413 ,  H04B7/0452 ,  H04B7/0456 ,  H04B7/0604 ,  H04L5/0007 ,  H04L5/001 ,  H04L5/0032 ,  H04L5/0041 ,  H04L5/0044 ,  H04L5/0048 ,  H04L5/0051 ,  H04L5/0053 ,  H04L5/0073 ,  H04L27/0006 ,  H04W16/14 ,  H04W74/0833

    Abstract: Techniques are described for wireless communication. An orthogonal frequency-division multiple access (OFDMA) configuration of an uplink channel is identified for communications in an unlicensed radio frequency spectrum band. An OFDMA waveform is generated based on the identified OFDMA configuration. The OFDMA waveform is communicated in a signal in the unlicensed radio frequency spectrum band. A virtual cell identifier of a first base station may be associated with transmissions between the first base station and a first user equipment (UE). A set of common resource blocks may be identified for transmission of a demodulation reference signal (DM-RS) between the first base station and the first UE. A configuration of an uplink channel may be dynamically selected for uplink communications in an unlicensed radio frequency spectrum band. A waveform may be generated based on the selected configuration. The waveform may be communicated in a signal in the unlicensed radio frequency spectrum band.

    Abstract translation: 技术描述为无线通信。 识别上行链路信道的正交频分多址（OFDMA）配置用于非许可射频频带中的通信。 基于所识别的OFDMA配置生成OFDMA波形。 在非许可射频频带中的信号中传送OFDMA波形。 第一基站的虚拟小区标识符可以与第一基站和第一用户设备（UE）之间的传输相关联。 可以识别一组公共资源块，用于在第一基站和第一UE之间传输解调参考信号（DM-RS）。 可以动态地选择上行链路信道的配置用于未许可的射频频带中的上行链路通信。 可以基于所选择的配置来生成波形。 波形可以在未许可的射频频带中的信号中传送。

    RESOURCE MAPPING TO HANDLE BURSTY INTERFERENCE
    283.
    发明申请
    RESOURCE MAPPING TO HANDLE BURSTY INTERFERENCE 有权
    资源映射来处理破坏性干扰

    公开(公告)号：US20150067435A1

    公开(公告)日：2015-03-05

    申请号：US14471138

    申请日：2014-08-28

    Applicant: QUALCOMM Incorporated

    Inventor： Srinivas Yerramalli ,  Tao Luo ,  Durga Prasad Malladi ,  Naga Bhushan ,  Yongbin Wei ,  Tingfang Ji ,  Aleksandar Damnjanovic ,  Wanshi Chen

    IPC: H04L1/00

    CPC classification number: H04L1/0006 ,  H04L1/0034 ,  H04L1/0071 ,  H04L1/08 ,  H04L1/1893 ,  H04L5/001 ,  H04L5/0044 ,  H04L5/0073 ,  H04L5/1469 ,  H04L27/3488

    Abstract: Resource mapping and coding schemes to handle bursty interference are disclosed that provide for spreading the modulated symbols for one or more transmission code words over more symbols in the time-frequency transmission stream. Certain aspects allow for the modulated symbols to be based on bits from more than one code word. Other aspects also provide for re-mapping code word transmission sequences for re-transmissions based on the number of re-transmissions requested by the receiver. Additional aspects provide for layered coding that uses a lower fixed-size constellation to encode/decode transmissions in a layered manner in order to achieve a larger-size constellation encoding. The layered encoding process allows the transmitter and receiver to use different coding rates for each coding layer. The layered encoding process also allows interference from neighboring cells to be canceled without knowledge of the actual constellation used to code the interfering neighboring signal.

    Abstract translation: 公开了用于处理突发干扰的资源映射和编码方案，其用于在时间 - 频率传输流中通过更多符号将一个或多个传输码字的调制符号扩展。 某些方面允许调制符号基于来自多于一个码字的比特。 其他方面还提供了基于由接收机请求的重传次数来重新映射用于重传的码字传输序列。 另外的方面提供了使用较低固定尺寸星座以分层方式对传输进行编码/解码以便实现较大尺寸星座编码的分层编码。 分层编码过程允许发射机和接收机对每个编码层使用不同的编码速率。 分层编码处理还允许在不知道用于对干扰相邻信号进行编码的实际星座的情况下取消来自相邻小区的干扰。

    COMMON HARQ PROCESSES
    284.
    发明申请
    COMMON HARQ PROCESSES 审中-公开
    通用HARQ过程

    公开(公告)号：US20150055589A1

    公开(公告)日：2015-02-26

    申请号：US14465012

    申请日：2014-08-21

    Applicant: QUALCOMM Incorporated

    Inventor： Srinivas Yerramalli ,  Tao Luo ,  Durga Prasad Malladi ,  Naga Bhushan ,  Wanshi Chen ,  Yongbin Wei

    IPC: H04L5/00 ,  H04L1/16 ,  H04L1/18

    CPC classification number: H04L5/0053 ,  H04L1/1671 ,  H04L1/1812 ,  H04L1/1822 ,  H04L1/1861 ,  H04L1/1887 ,  H04L1/1893 ,  H04L1/1896 ,  H04L5/001 ,  H04L5/0055

    Abstract: A sharing of common hybrid automatic repeat request (HARQ) process space by multiple unlicensed spectrum component carriers is described. Because communication access is not guaranteed over the unlicensed spectrum, a set of component carriers in the unlicensed spectrum is assigned to share a common HARQ process space, such that uplink or downlink data will be transmitted over any one or more of the set of component carriers that clear a clear channel assessment (CCA) check. The receiver then provides a HARQ process response over the same HARQ process space using the grouped component carriers that share that common HARQ process space. Thus, any one or more of the set of component carriers sharing the common HARQ process space may both carry the transmitted data and carry the HARQ process response to the attempted data transmission.

    Abstract translation: 描述了由多个未许可的频谱分量载波共享公共混合自动重传请求（HARQ）处理空间。 由于通信接入不能通过未经许可的频谱得到保证，所以分配非许可频谱中的一组分量载波以共享公共HARQ进程空间，使得上行链路或下行链路数据将通过该组分组载波中的任何一个或多个传输 明确渠道评估（CCA）检查。 然后，接收机使用共享该公共HARQ进程空间的分组分量载波在相同的HARQ进程空间上提供HARQ进程响应。 因此，共享公共HARQ处理空间的一组分量载波中的任何一个或多个可以携带所发射的数据并且对尝试的数据传输携带HARQ过程响应。

    Asynchronous carrier aggregation
    285.
    发明授权
    Asynchronous carrier aggregation 有权

    公开(公告)号：US12289682B2

    公开(公告)日：2025-04-29

    申请号：US18518211

    申请日：2023-11-22

    Applicant: QUALCOMM Incorporated

    Inventor： Srinivas Yerramalli ,  Rahul Malik ,  Tamer Kadous

    IPC: H04W52/02 ,  H04L1/00 ,  H04L5/00 ,  H04L27/26 ,  H04W56/00 ,  H04W72/0446 ,  H04W24/10 ,  H04W72/21

    Abstract: Methods, systems, and devices for wireless communications are described that asynchronous carrier aggregation, including between high frequency band and lower frequency band transmissions. A user equipment (UE) may be configured to monitor transmissions in a first frequency band and a second frequency band. The UE may measure a timing difference between transmissions in the first frequency band and one or more of the transmissions in the second frequency band, and transmit an indication of the timing difference to a base station. The base station may use the timing difference to determine whether the UE is to use asynchronous carrier aggregation. If the base station determines that the UE is to use asynchronous carrier aggregation, the base station may configure the UE to observe at least a minimum amount of delay when conducting uplink signaling via one of the frequency bands.

    Directional channel access using a narrow beam with multiple spatial streams
    287.
    发明授权
    Directional channel access using a narrow beam with multiple spatial streams 有权

    公开(公告)号：US12255720B2

    公开(公告)日：2025-03-18

    申请号：US18516692

    申请日：2023-11-21

    Applicant: QUALCOMM Incorporated

    Inventor： Mohammed Ali Mohammed Hirzallah ,  Arumugam Chendamarai Kannan ,  Srinivas Yerramalli ,  Xiaoxia Zhang

    IPC: H04B7/06 ,  H04B7/0426 ,  H04B17/10

    Abstract: Methods, systems, and devices for wireless communication are described. Aspects of the disclosure describe narrow beam-based channel access that enables a device to communicate in a shared radio frequency spectrum band without performing channel access procedures. Specifically, aspects of the disclosure describe techniques for defining one or more directional beams as a narrow beam, where the relative narrowness of the beam may be determined in the context of interference (e.g., as opposed to being defined from a geometric perspective). For example, a particular beam may be determined to be a narrow beam, and therefore associated with communications in shared radio frequency spectrum bands without channel access procedures, based on one or more metrics and a number of spatial streams associated with the beam. A device may use such narrow beams for communications without channel access procedures in shared radio frequency spectrum bands.

    MACHINE LEARNING (ML)-BASED POSITIONING IN A WIRELESS COMMUNICATION SYSTEM THAT MITIGATES USER EQUIPMENT (UE) CLOCK DRIFT
    289.
    发明申请
    MACHINE LEARNING (ML)-BASED POSITIONING IN A WIRELESS COMMUNICATION SYSTEM THAT MITIGATES USER EQUIPMENT (UE) CLOCK DRIFT 有权

    公开(公告)号：US20250071717A1

    公开(公告)日：2025-02-27

    申请号：US18455289

    申请日：2023-08-24

    Applicant: QUALCOMM Incorporated

    Inventor： Mohammed Ali Mohammed Hirzallah ,  Mohamad Sayed Hassan ,  Srinivas Yerramalli

    IPC: H04W64/00 ,  H04J3/06 ,  H04L5/00

    Abstract: This disclosure provides systems, methods, and devices for wireless communication that support machine learning (ML)-based positioning that mitigates user equipment (UE) clock drift. In some aspects, a UE may receive, from a network entity, positioning configuration that indicates positioning operations to be performed to gather training data to train an ML positioning model to account for UE clock drift. The UE may monitor for positioning reference signals from a transmit/receive point and transmit positioning measurements to a training entity. The positioning measurements may include multiple measurements at a fixed location, or the UE may augment the positioning measurements based on simulated clock drift measurements. Alternatively, the UE may transmit clock drift information with the positioning measurements to the training entity. Alternatively, the UE may utilize a hybrid approach that combines multiple positioning measurements with augmentation or providing clock drift information. Other aspects and features are also claimed and described.

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