公开(公告)号：US20180331727A1

公开(公告)日：2018-11-15

申请号：US15975995

申请日：2018-05-10

Applicant: QUALCOMM Incorporated

Inventor： Makesh Pravin John Wilson ,  Tao Luo ,  Sony Akkarakaran ,  Rahul Malik ,  Kaushik Chakraborty

IPC: H04B7/0408 ,  H04B7/0413 ,  H04B7/06 ,  H04W72/04 ,  H04B7/08

Abstract: Methods, systems, and devices for wireless communication are described. A base station may configure a first sub-band and a second sub-band of a system bandwidth for communication with a user equipment (UE). The base station may determine a spatial quasi co-location (QCL) relationship between the first sub-band and the second sub-band and may transmit signaling to the UE that indicates the determined spatial QCL relationship. Upon receiving the signaling, the UE may derive, based on the indicated spatial QCL relationship, spatial parameters (e.g., beam width, pointing angle, etc.) for communication with the base station via the second sub-band. The spatial parameters may be derived based on spatial parameters used for reception of a downlink transmission from the base station via the first sub-band. Subsequently, the UE may communicate with the base station via the second sub-band using the derived spatial parameters.

公开(公告)号：US20180317225A1

公开(公告)日：2018-11-01

申请号：US15964010

申请日：2018-04-26

Applicant: QUALCOMM Incorporated

Inventor： Sony Akkarakaran ,  Tao Luo ,  Xiao Feng Wang ,  Makesh Pravin John Wilson ,  Sumeeth Nagaraja ,  Kaushik Chakraborty ,  Wooseok Nam ,  Shengbo Chen

IPC: H04W72/04 ,  H04L5/00

Abstract: Methods, systems, and devices for wireless communication are described. The described techniques provide for configuration and transmission of reference signals over aggregated mini-slots by modifying (e.g., extending) transmission time intervals (TTIs) or sharing reference signals across multiple mini-slots. The reference signals may be shared between multiple aggregated mini-slots and a reference signal pattern may be determined based on data payload allocation, modulation coding scheme (MCS), rank, or other factors of the aggregated mini-slots. Data payloads may be scheduled jointly or separately for each mini-slot and may be allocated across a set of aggregated mini-slots.

公开(公告)号：US20180278318A1

公开(公告)日：2018-09-27

申请号：US15887806

申请日：2018-02-02

Applicant: QUALCOMM Incorporated

Inventor： Kaushik Chakraborty ,  Tao Luo ,  Xiao feng Wang ,  Makesh Pravin John Wilson ,  Shengbo Chen

IPC: H04B7/06 ,  H04W52/14

CPC classification number: H04B7/0695 ,  H04B7/024 ,  H04B7/0404 ,  H04B7/0408 ,  H04B7/088 ,  H04W52/146 ,  H04W52/16 ,  H04W52/367 ,  H04W52/42

Abstract: Various aspects of the disclosure relate to managing the transmission of uplink beams. For example, a first apparatus may generate a signal for transmission to a second apparatus. Thereafter, the first apparatus may detect a condition associated with transmitting the signal via a first uplink beam at a first transmission power. The condition may include the first uplink beam exceeding a maximum permissible exposure (MPE) limit. Accordingly, the first apparatus may refrain from transmitting the signal via the first uplink beam based on the at least one condition and transmit the signal to the second apparatus using a second uplink beam different from the first uplink beam.

公开(公告)号：US20180220448A1

公开(公告)日：2018-08-02

申请号：US15883848

申请日：2018-01-30

Applicant: QUALCOMM Incorporated

Inventor： Sony Akkarakaran ,  Tao Luo ,  Sumeeth Nagaraja ,  Makesh Pravin John Wilson ,  Kaushik Chakraborty ,  Xiao Feng Wang ,  Shengbo Chen ,  Wooseok Nam

IPC: H04W72/14 ,  H04W72/04 ,  H04L5/00 ,  H04W74/08

CPC classification number: H04W72/14 ,  H04L5/001 ,  H04L5/0023 ,  H04L5/0044 ,  H04L5/0048 ,  H04L5/0091 ,  H04W16/28 ,  H04W72/0413 ,  H04W72/044 ,  H04W74/0833 ,  H04W88/02 ,  H04W88/08

Abstract: A grant may allocate resources for an uplink transmission by a user equipment (UE) in a system using beamforming, where the resources may be used by the UE to transmit data or control information during a time that a base station is listening in a certain receive beam direction. A UE may be in communication with a base station using beamformed transmissions, and the base station may send a resource grant to the UE for uplink transmissions that correspond to a receive beam direction of a beamsweeping operation. The UE may then transmit data and/or uplink control information to the base station according to the resource grant and when the base station is listening in the corresponding direction. In some examples, the UE may send the uplink transmission to the serving base station, and transmit a random access channel to another base station based on the beamsweeping operation.

公开(公告)号：US20180062811A1

公开(公告)日：2018-03-01

申请号：US15685906

申请日：2017-08-24

Applicant: QUALCOMM Incorporated

Inventor： Sony Akkarakaran ,  Tao Luo ,  Kaushik Chakraborty ,  Sumeeth Nagaraja

IPC: H04L5/00 ,  H04L27/26 ,  H04W72/04 ,  H04W24/10

CPC classification number: H04L5/0048 ,  H04B7/0617 ,  H04B7/0689 ,  H04L1/00 ,  H04L1/0006 ,  H04L5/0007 ,  H04L5/0035 ,  H04L25/0222 ,  H04L27/2605 ,  H04L27/2607 ,  H04L27/2613 ,  H04L27/2636 ,  H04W24/10 ,  H04W72/042

Abstract: Methods, systems, and devices for wireless communication are described. A user equipment (UE) and base station may dynamically update a reference signal pattern, a symbol prefix configuration, or both based on channel propagation conditions such as a delay spread, multipath propagation, or frequency selectivity. In some cases, the UE may measure the channel propagation conditions and send an indication to the base station. The base station may then update the reference signal pattern or symbol prefix configuration accordingly, and send an indication of the new configuration to the UE. In some cases, i.e., for uplink communications, the base station may measure the channel propagation conditions directly, update the reference signal pattern or symbol prefix configuration, and then send a request to the UE to send subsequent reference signals or data communications based on the updated configuration.

公开(公告)号：US20170230863A9

公开(公告)日：2017-08-10

申请号：US13937787

申请日：2013-07-09

Applicant: QUALCOMM Incorporated

Inventor： Soumya Das ,  Kaushik Chakraborty ,  Krishnan Rajamani ,  Ozgur Dural ,  Samir S. Soliman

IPC: H04W28/06

CPC classification number: H04W28/065 ,  H04L1/0088 ,  H04L69/22 ,  H04N21/43637 ,  H04W28/06 ,  H04W28/12

Abstract: Systems and methods for extending header fields are disclosed. The header field may be extended without changing the current size of the header. Reserve bits may be used to indicate the use of an extended header and the extended header may be store in a variety of locations within the frame, including the frame payload or pad bits.

公开(公告)号：US09462600B2

公开(公告)日：2016-10-04

申请号：US14480179

申请日：2014-09-08

Applicant: QUALCOMM Incorporated

Inventor： Ozgur Dural ,  Kaushik Chakraborty ,  Soumya Das ,  Olufunmilola Awoniyi-Oteri ,  Won-ick Lee

IPC: H04W72/12 ,  H04W84/12 ,  H04W88/06

CPC classification number: H04W72/1215 ,  H04W24/08 ,  H04W84/12 ,  H04W88/06

Abstract: A time period associated with each of a plurality of tasks included in a current instance of WWAN data capture/processing by a WLAN processor and a WWAN processor is determined. A total time period comprising the respective time periods of each task is compared to an overall time budget criterion to obtain a comparison outcome. A change in at least one of the tasks based on the comparison outcome is implemented. The change results in an adjustment of the total time period associated with a next instance of WWAN data capture/processing by the WLAN processor and the WWAN processor.

Abstract translation: 确定与WLAN处理器和WWAN处理器的WWAN数据捕获/处理的当前实例中包括的多个任务中的每一个相关联的时间段。 将包括每个任务的各个时间段的总时间段与总体时间预算准则进行比较以获得比较结果。 实现基于比较结果的至少一项任务的改变。 该改变导致与WLAN处理器和WWAN处理器的WWAN数据捕获/处理的下一个实例相关联的总时间段的调整。

公开(公告)号：US09414394B2

公开(公告)日：2016-08-09

申请号：US13964900

申请日：2013-08-12

Applicant: QUALCOMM Incorporated

Inventor： Kaushik Chakraborty ,  Soumya Das ,  Insoo Hwang ,  Bongyong Song

IPC: H04W72/08 ,  H04W16/10 ,  H04W52/24 ,  H04B1/525 ,  H04W84/04 ,  H04W52/14

CPC classification number: H04W72/082 ,  H04B1/525 ,  H04J11/005 ,  H04J11/0069 ,  H04J2211/001 ,  H04W16/10 ,  H04W52/143 ,  H04W52/243 ,  H04W52/245 ,  H04W84/045

Abstract: Techniques for compensating for self-induced interference in a small cell base station are provided. The techniques include detecting control signals from a neighboring base station associated with a wireless communication network, the control signals being transmitted by the neighboring base station at predetermined intervals, and compensating for self-induced interference caused by a transmitter of the small cell base station transmitting during the predetermined intervals in which control signals are received from the neighboring base station and the transmitter of the small cell base station is transmitting data.

Abstract translation: 提供了用于补偿小型基站中的自感应干扰的技术。 这些技术包括检测来自与无线通信网络相关联的相邻基站的控制信号，控制信号由相邻基站以预定间隔发送，并补偿由小蜂窝基站发射的发射机引起的自身干扰 在从相邻基站接收控制信号的预定间隔期间，小小区基站的发射机正在发送数据。

公开(公告)号：US09374727B2

公开(公告)日：2016-06-21

申请号：US14198456

申请日：2014-03-05

Applicant: QUALCOMM Incorporated

Inventor： Ozgur Dural ,  Kaushik Chakraborty ,  Soumya Das ,  Bongyong Song ,  Samir Salib Soliman

IPC: H04W24/08 ,  H04W24/10 ,  H04W84/12 ,  H04B17/21 ,  H04B17/27 ,  H04B17/318

CPC classification number: H04W24/08 ,  H04B17/21 ,  H04B17/27 ,  H04B17/318 ,  H04W24/10 ,  H04W84/12

Abstract: An apparatus for wireless communication obtains a first metric of a cell based on signals received by a WWAN radio tuned to a common frequency, and a second metric of the cell based on signals received by a WLAN radio tuned to the common frequency. The apparatus determines a calibration factor based on the first and second metrics, and performs cell search and cell measurement based on the calibration factor and signals received by the WLAN radio tuned to a target frequency. The common frequency may be a serving frequency of the WWAN, in which case the first and second metrics are one of frequency or power metrics and the calibration factor is one of a frequency offset and a power offset. The common frequency may also be a target frequency for inter-frequency measurements of the WWAN, in which case the calibration factor is based primarily on power measurements.

Abstract translation: 一种用于无线通信的装置基于由调谐到公共频率的WWAN无线电接收的信号获得小区的第一度量，以及基于由调谐到公共频率的WLAN无线电接收的信号的小区的第二度量。 该装置基于第一和第二度量确定校准因子，并且基于校准因子和由调谐到目标频率的WLAN无线电接收的信号执行小区搜索和小区测量。 公共频率可以是WWAN的服务频率，在这种情况下，第一和第二度量是频率或功率度量之一，并且校准因子是频率偏移和功率偏移之一。 共同频率也可以是WWAN的频率间测量的目标频率，在这种情况下，校准因子主要基于功率测量。

公开(公告)号：US09237530B2

公开(公告)日：2016-01-12

申请号：US13673946

申请日：2012-11-09

Applicant: QUALCOMM Incorporated

Inventor： Bongyong Song ,  Kaushik Chakraborty ,  Samir Salib Soliman

IPC: H04W52/24

CPC classification number: H04W52/244

Abstract: A method for wireless communications includes reducing transmission power, by a femto base station, at its radio frequency (RF) transmitter, and cancelling a transmitted data signal of the RF transmitter at its network listen (NL) receiver. The reduction occurs in response to: occurrence of a network listen process; and/or a signal quality of the local macro coverage area exceeding a threshold quality. Additionally or alternatively, the femto base station may detect quality of its macro coverage area, and respond to the signal quality being below the threshold quality by: suspending reduction of transmission power and cancellation of the transmitted data signal; suspending the RF transmitter during transmission gaps assigned to user equipments (UEs); and triggering an NL operation in response to suspension of the RF transmitter, wherein the NL operation occurs within the duration of each of the transmission gaps.

Abstract translation: 一种用于无线通信的方法包括：由毫微微基站在其射频（RF）发射机处降低发射功率，并在其网络监听（NL）接收机处消除RF发射机的发射数据信号。 减少发生在响应于：发生网络监听过程; 和/或本地宏覆盖区域的信号质量超过阈值质量。 另外或替代地，毫微微基站可以检测其宏覆盖区域的质量，并且通过以下方式响应于低于阈值质量的信号质量：暂停发送功率的降低和所发送的数据信号的消除; 在分配给用户设备（UE）的传输间隙期间暂停RF发射机; 并且响应于所述RF发射机的暂停触发NL操作，其中所述NL操作发生在每个所述传输间隙的持续时间内。