公开(公告)号：WO2020159756A1

公开(公告)日：2020-08-06

申请号：PCT/US2020/014477

申请日：2020-01-21

Applicant: QUALCOMM INCORPORATED

Inventor： YERRAMALLI, Srinivas ,  ZHANG, Xiaoxia ,  LUO, Tao ,  CHENDAMARAI KANNAN, Arumugam ,  CHANDE, Vinay ,  JOHN WILSON, Makesh Pravin ,  PARK, Sungwoo ,  NAM, Wooseok

IPC: H04B7/06 ,  H04B7/08

Abstract: Methods, systems, and devices for wireless communication are described. Generally, the described techniques provide for efficiently identifying a receive beam for performing a listen before talk (LBT) procedure in an attempt to gain access to a transmission opportunity (TxOP) in a shared radio frequency spectrum. In particular, a wireless device may select a receive beam that corresponds to one or more transmit beams to be used in a TxOP to perform an LBT procedure in an attempt to gain access to the TxOP. In one example, the wireless device may select a receive beam for performing an LBT procedure based on the energy of each of the transmit beams to be used in a TxOP. In another example, the wireless device may select a receive beam for performing an LBT procedure if the receive beam is quasi co-located with each of the transmit beams to be used in a TxOP.

公开(公告)号：WO2020159726A1

公开(公告)日：2020-08-06

申请号：PCT/US2020/014111

申请日：2020-01-17

Applicant: QUALCOMM INCORPORATED

Inventor： YERRAMALLI, Srinivas ,  ZHANG, Xiaoxia ,  LUO, Tao ,  CHENDAMARAI KANNAN, Arumugam ,  CHANDE, Vinay

IPC: H04W74/08 ,  H04B7/06 ,  H04L27/00 ,  H04B7/0408

Abstract: Methods, systems, and devices for wireless communications are described. Wireless devices operating in an unlicensed radio frequency spectrum band may perform directional listen-before-talk (LBT) procedures to gain access to a channel. In a beam-shrinking scheme for directional LBT, a wireless device may start an LBT procedure using a first beam (e.g., a wide beam). If the clear channel assessment (CCA) fails for the first beam, the device may switch the LBT procedure to a second (e.g., narrower) beam. Depending on the direction of the interference source, the second beam may result in a successful LBT procedure. In a beam sweeping scheme for directional LBT, a wireless device may perform concurrent LBT over multiple narrow beams. If any beam of the set of beams detects frequent or continuous interference, the device may drop that beam from the concurrent LBT procedure.

公开(公告)号：WO2020150104A1

公开(公告)日：2020-07-23

申请号：PCT/US2020/013144

申请日：2020-01-10

Applicant: QUALCOMM INCORPORATED

Inventor： FAN, Zhifei ,  LUO, Tao ,  ZHANG, Xiaoxia ,  CHANDE, Vinay ,  SUN, Jing ,  CHENDAMARAI KANNAN, Arumugam

IPC: H04L5/00 ,  H04W72/04

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive a plurality of downlink grants for a corresponding plurality of data transmissions, wherein each downlink grant identifies resources for receiving the corresponding data transmission and indicates whether the corresponding data transmission comprises a last data transmission for a reporting occasion. The UE may determine, based at least in part on the received downlink grants, that a last downlink grant for the last data transmission associated with the reporting occasion was not received. The UE may transmit a feedback report during the reporting occasion, wherein a format of the feedback report is based at least in part on the last downlink grant for the last data transmission not being received.

公开(公告)号：WO2020146340A2

公开(公告)日：2020-07-16

申请号：PCT/US2020/012525

申请日：2020-01-07

Applicant: QUALCOMM INCORPORATED

Inventor： PARK, Sungwoo ,  JOHN WILSON, Makesh Pravin ,  LUO, Tao ,  SUN, Jing ,  ZHANG, Xiaoxia ,  CHENDAMARAI KANNAN, Arumugam ,  CHANDE, Vinay ,  KHOSHNEVISAN, Mostafa

IPC: H04L25/03

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive, from a first transmit receive point (TRP), a downlink control information (DCI) communication, the UE being included in a multi-TRP configuration with the first TRP and a second TRP. The UE may determine information unique to the first TRP. The information unique to the first TRP may be at least one of associated with the DCI communication or included in the DCI communication. The UE may generate a downlink scrambling sequence initialization code, associated with the first TRP, based at least in part on the information unique to the first TRP. The UE may generate a downlink scrambling sequence, associated with the first TRP, based at least in part on the downlink scrambling sequence initialization code associated with the first TRP. Numerous other aspects are provided.

公开(公告)号：WO2017040721A1

公开(公告)日：2017-03-09

申请号：PCT/US2016/049783

申请日：2016-08-31

Applicant: QUALCOMM INCORPORATED

Inventor： LUO, Tao ,  PATEL, Chirag Sureshbhai ,  GAAL, Peter ,  CHANDE, Vinay ,  VALLIAPPAN, Nachiappan ,  SADEK, Ahmed Kamel

IPC: H04W16/14 ,  H04W16/32 ,  H04W84/04

CPC classification number: H04L5/0048 ,  H04W16/14 ,  H04W16/32 ,  H04W72/0466 ,  H04W72/12 ,  H04W84/042 ,  H04W88/08

Abstract: Techniques for operator identification on a shared communication medium are disclosed. An access point may determine an operator identifier for an operator associated with an access point and configure a set of resource elements to carry an operator identifier reference signal embedded with the operator identifier. The access point may then transmit the operator identifier reference signal using the configured set of resource elements. An access terminal may receive signaling from an access point on a set of resource elements and monitor the signaling for an operator identifier reference signal. The access terminal may then determine an operator identifier for an operator associated with the access point based on the operator identifier reference signal.

Abstract translation: 公开了用于共享通信介质上的操作者识别的技术。 接入点可以确定与接入点相关联的运营商的运营商标识符，并且配置一组资源元素以携带嵌入有运营商标识符的运营商标识符参考信号。 然后，接入点可以使用配置的一组资源元素来发送运营商标识符参考信号。 接入终端可以从一组资源元素上的接入点接收信令，并监视用于操作者标识符参考信号的信令。 然后，接入终端可以基于运营商标识符参考信号来确定与接入点相关联的运营商的运营商标识符。

公开(公告)号：WO2016148845A1

公开(公告)日：2016-09-22

申请号：PCT/US2016/018946

申请日：2016-02-22

Applicant: QUALCOMM INCORPORATED

Inventor： CHANDE, Vinay ,  PATEL, Chirag Sureshbhai ,  KHOSHNEVISAN, Mostafa ,  JI, Tingfang

IPC: H04L5/00

CPC classification number: H04W24/02 ,  H04L1/0002 ,  H04L5/0035 ,  H04L5/0057 ,  H04L5/0058 ,  H04L5/0064 ,  H04L5/0073 ,  H04L5/0087 ,  H04W72/12 ,  H04W88/02 ,  H04W88/08

Abstract: The disclosure provides for an evolved node B (eNB) to provide channel state information resources for wireless communications. The eNB may determine a downlink transmission status for a first user equipment (UE) connected to the eNB. The eNB may adjust a scheduled non-zero power channel state reference signal (NZP CSIRS) transmission from the eNB based on the downlink transmission status. A resource for the scheduled NZP CSI-RS transmission may coincide or be coordinated with, an interference measurement resource of a second UE connected to a second eNB. Adjusting the reference signal transmission may include scaling a transmission power for the reference signal transmission or precoding the NZP CSI-RS based on an expected precoding for downlink user data transmission for the first UE. The eNB may also ignore channel state information reports from the first UE when the eNB has no downlink data for the first UE.

Abstract translation: 本公开提供了演进节点B（eNB）为无线通信提供信道状态信息资源。 eNB可以确定与eNB连接的第一用户设备（UE）的下行链路传输状态。 eNB可以基于下行链路传输状态从eNB调整调度的非零功率信道状态参考信号（NZP CSIRS）传输。 用于调度的NZP CSI-RS传输的资源可以与连接到第二eNB的第二UE的干扰测量资源重合或协调。 调整参考信号传输可以包括基于用于第一UE的下行链路用户数据传输的预期预编码来缩放参考信号传输的发射功率或对NZP CSI-RS进行预编码。 当eNB没有用于第一UE的下行链路数据时，eNB也可以忽略来自第一UE的信道状态信息报告。

公开(公告)号：WO2016048821A1

公开(公告)日：2016-03-31

申请号：PCT/US2015/050916

申请日：2015-09-18

Applicant: QUALCOMM INCORPORATED

Inventor： SCHENK, Andreas Maximilian ,  GARAVAGLIA, Andrea ,  CHANDE, Vinay ,  PATEL, Chirag Sureshbhai

IPC: H04W72/12

CPC classification number: H04W72/085 ,  H04W72/1226

Abstract: Described herein are techniques for link adaptation at an access point enabled for coordinated scheduling. For example, the technique may involve determining a resource-allocation profile (RAP) for the access point, wherein the RAP is based on a set of statistics associated with channel conditions for mobile devices. The technique may involve determining a plurality of link adaptation instances configured for managing interference, each link adaptation instance being associated with an interference condition. The technique may involve for each link adaptation instance, updating the link adaptation instance based on statistics associated with the interference condition.

Abstract translation: 这里描述的是用于在能够协调调度的接入点处的链路自适应的技术。 例如，该技术可以涉及确定接入点的资源分配简档（RAP），其中RAP基于与移动设备的信道条件相关联的一组统计信息。 该技术可以涉及确定被配置用于管理干扰的多个链路自适应实例，每个链路自适应实例与干扰条件相关联。 该技术可以涉及每个链路自适应实例，基于与干扰条件相关联的统计信息来更新链路适配实例。

公开(公告)号：WO2015183575A1

公开(公告)日：2015-12-03

申请号：PCT/US2015/030804

申请日：2015-05-14

Applicant: QUALCOMM INCORPORATED

Inventor： PATEL, Chirag Sureshbhai ,  YAVUZ, Mehmet ,  CHANDE, Vinay ,  KADOUS, Tamer Adel

IPC: H04W72/04 ,  H04W72/08 ,  H04W72/12

CPC classification number: H04W16/18 ,  H04L43/04 ,  H04W24/02 ,  H04W72/0426 ,  H04W72/082 ,  H04W72/1289

Abstract: In a wireless communication system, a cell may perform a method for adapting a long-term or short-term almost blank subframe (ABS) configuration, including determining, by the cell, a current neighbor cell deployment state, and adapting a long- term downlink ABS configuration of the cell based on the current neighbor cell deployment state. The current neighbor cell deployment state may include, for example, a number of neighbor cells, signal strengths of the neighbor cells, or a number of users being served in Cell Range Expansion (CRE), which may be determined using a Neighbor Listen module, receiving measurement reports from UEs, or receiving reports from small cell neighbors via a backhaul. Adapting the long-term downlink ABS configuration of the cell may include increasing a proportion of ABS-vacated resources in proportion to an change in neighbor cell deployment density, increasing neighbor cell signal strength, or increasing number of users served in CRE by neighbor cells.

Abstract translation: 在无线通信系统中，小区可以执行用于适应长期或短期几乎空白子帧（ABS）配置的方法，包括由小区确定当前相邻小区部署状态，并且适应长期 基于当前相邻小区部署状态的小区的下行ABS配置。 当前相邻小区部署状态可以包括例如多个相邻小区，相邻小区的信号强度或者可以使用邻居监听模块确定的小区范围扩展（CRE）中服务的多个用户， 从UE接收测量报告，或通过回程接收来自小型小区邻居的报告。 适应小区的长期下行链路ABS配置可以包括按照相邻小区部署密度的变化，增加邻居小区信号强度或增加邻居小区在CRE中服务的用户数量而增加ABS空闲资源的比例。

公开(公告)号：WO2015148852A1

公开(公告)日：2015-10-01

申请号：PCT/US2015/022836

申请日：2015-03-26

Applicant: QUALCOMM INCORPORATED

Inventor： YAVUZ, Mehmet ,  PATEL, Chirag Sureshbhai ,  KADOUS, Tamer Adel ,  CHANDE, Vinay

IPC: H04W52/02

CPC classification number: H04W72/048 ,  H04B7/0426 ,  H04W28/0221 ,  H04W52/0238 ,  H04W52/0245 ,  H04W52/0277 ,  H04W52/028 ,  H04W88/06 ,  Y02D70/1242 ,  Y02D70/1262 ,  Y02D70/1264 ,  Y02D70/142 ,  Y02D70/146 ,  Y02D70/22

Abstract: A system and method for operation mode adaptation is operable by a network entity that determines channel conditions between the network entity and a second network entity. The network entity determines its hardware constraints and power consumption requirements. The network entity balances data throughput with power consumption for the network entity by selecting a hardware allocation, based at least in part on the channel conditions, the hardware constraints, and the power consumption requirements. In some implementations, the network entity balances data throughput with power consumption for the network entity by selecting an operation mode, based at least in part on the channel conditions, the hardware constraints, and the power consumption requirements.

Abstract translation: 用于操作模式适配的系统和方法由确定网络实体和第二网络实体之间的信道状况的网络实体操作。 网络实体确定其硬件约束和功耗要求。 网络实体至少部分地基于信道条件，硬件约束和功耗要求，通过选择硬件分配来平衡数据吞吐量与网络实体的功耗。 在一些实现中，网络实体至少部分地基于信道条件，硬件约束和功耗要求，通过选择操作模式来平衡数据吞吐量与网络实体的功耗。

公开(公告)号：WO2015057486A2

公开(公告)日：2015-04-23

申请号：PCT/US2014/059876

申请日：2014-10-09

Applicant: QUALCOMM INCORPORATED

Inventor： YAVUZ, Mehmet ,  MESHKATI, Farhad ,  PRAKASH, Rajat ,  CHEN, Tao ,  CHANDE, Vinay

IPC: H04W16/08

CPC classification number: H04W72/0486 ,  H04W16/10 ,  H04W24/02 ,  H04W52/244 ,  H04W52/267 ,  H04W52/343

Abstract: The present disclosure presents a method and an apparatus for optimizing coverage area of a small cell. For example, the disclosure presents a method for estimating an available backhaul capacity of a small cell and determining a target OTA data rate for the small cell based at least on the estimated available backhaul capacity, and changing a coverage area of the small cell based at least on the determined target OTA data rate by. As such, optimizing coverage area of a small cell may be achieved.

Abstract translation: 本公开提出了用于优化小小区的覆盖区域的方法和设备。 例如，本公开提出了一种用于估计小小区的可用回程容量并且至少基于估计的可用回程容量来确定小小区的目标OTA数据速率的方法，并且基于下式来改变小小区的覆盖区域 至少取决于确定的目标OTA数据速率。 因此，可以实现优化小小区覆盖区域。