公开(公告)号：US09867055B2

公开(公告)日：2018-01-09

申请号：US14685051

申请日：2015-04-13

Applicant: QUALCOMM Incorporated

Inventor： Aleksandar Damnjanovic ,  Naga Bhushan ,  Durga Prasad Malladi ,  Yongbin Wei ,  Kiran Kumar Somasundaram ,  Wanshi Chen ,  Peter Gaal ,  Tao Luo ,  Hao Xu

IPC: H04L1/00 ,  H04W16/14 ,  H04W74/08 ,  H04J3/16 ,  H04W72/04

CPC classification number: H04W16/14 ,  H04J3/1694 ,  H04W72/044 ,  H04W74/08

Abstract: Techniques are described for wireless communication. One method includes identifying, by a first transmitter, a first contention access protocol timing for accessing an unlicensed radio frequency spectrum band, and aligning a second contention access protocol timing with the first contention access protocol timing, the second contention access protocol timing being used by the first transmitter for accessing the unlicensed radio frequency spectrum band.

公开(公告)号：US09706572B2

公开(公告)日：2017-07-11

申请号：US14618704

申请日：2015-02-10

Applicant: QUALCOMM Incorporated

Inventor： Naga Bhushan ,  Durga Prasad Malladi ,  Ahmed Kamel Sadek ,  Kiran Kumar Somasundaram ,  Anastasios Stamoulis ,  Aleksandar Damnjanovic ,  Yongbin Wei ,  Dexu Lin

IPC: H04W74/08

CPC classification number: H04W74/08 ,  H04W74/0816

Abstract: Techniques are described for wireless communication. One method includes implementing, at a first node, a first access protocol to contend for access to a wireless communication medium shared by a plurality of nodes; determining whether a triggering event has occurred; and implementing, at the first node, a second access protocol to contend for access to the wireless communication medium based at least in part on a determination that the triggering event has occurred.

公开(公告)号：US09609663B2

公开(公告)日：2017-03-28

申请号：US14068578

申请日：2013-10-31

Applicant: QUALCOMM Incorporated

Inventor： Hao Xu ,  Tingfang Ji ,  Peter Gaal ,  Wanshi Chen ,  Yongbin Wei ,  Kiran Kumar Somasundaram ,  Miguel Griot

IPC: H04W4/00 ,  H04W74/00 ,  H04W52/02 ,  H04W74/08 ,  H04W88/04

CPC classification number: H04W74/002 ,  H04W52/0229 ,  H04W74/0833 ,  H04W88/04 ,  Y02D70/1222 ,  Y02D70/1242 ,  Y02D70/1262 ,  Y02D70/142 ,  Y02D70/146 ,  Y02D70/21

Abstract: Techniques are provided for decoupling uplink and downlink operations. According to certain aspects, a wireless node (e.g., a low power node) may receive, from a base station of a first cell, signaling indicating a random access channel (RACH) configuration for a wireless device. The wireless node may then detect the wireless node performing a RACH detection (based on the RACH configuration) and report the RACH detection and desired UL configuration to the base station of the first cell. The base station of the first cell may then select the wireless node for serving the wireless device for UL operations (e.g., based on the reported RACH detection-and similar reports from other wireless nodes detecting the same RACH procedure).

公开(公告)号：US09531494B2

公开(公告)日：2016-12-27

申请号：US14630216

申请日：2015-02-24

Applicant: QUALCOMM Incorporated

Inventor： Kiran Kumar Somasundaram ,  Dexu Lin ,  Naga Bhushan ,  Aleksandar Damnjanovic ,  Wanshi Chen ,  Peter Gaal ,  Anastasios Stamoulis ,  Gavin Bernard Horn ,  Onkar Dabeer ,  Yongbin Wei ,  Durga Prasad Malladi ,  Tingfang Ji ,  Hao Xu

IPC: H04J11/00 ,  H04L5/00 ,  H04W72/08 ,  H04L1/20

CPC classification number: H04J11/0056 ,  H04L1/20 ,  H04L5/0048 ,  H04W72/082

Abstract: Techniques are described for wireless communication. A first method may include transmitting a reference signal from an access point over a shared spectrum to a user equipment (UE), and receiving a measurement of the reference signal from the UE. A second method may include receiving at a UE over a shared spectrum a reference signal from an access point, and transmitting a measurement of the reference signal to the access point. In each of the first and second methods, the measurement may indicate interference with the shared spectrum from outside of a clear channel assessment (CCA) range of the access point. A third method may include receiving a plurality of reference signal measurements, where each reference signal measurement corresponds to one of a plurality of access points and indicates interference with a shared spectrum from outside of a CCA range of the corresponding access point, and performing channel selection for the plurality of access points based at least in part on the received reference signal measurements.

Abstract translation: 技术描述为无线通信。 第一种方法可以包括通过共享频谱将参考信号从接入点发送到用户设备（UE），以及从UE接收参考信号的测量。 第二种方法可以包括：通过共享频谱在UE处接收来自接入点的参考信号，以及将参考信号的测量值传送到接入点。 在第一和第二方法中的每一个中，测量可以指示从接入点的清晰信道评估（CCA）范围之外的共享频谱的干扰。 第三种方法可以包括接收多个参考信号测量，其中每个参考信号测量对应于多个接入点中的一个，并指示来自相应接入点的CCA范围之外的共享频谱的干扰，并且执行信道选择 至少部分地基于所接收的参考信号测量值对于所述多个接入点。

公开(公告)号：US20160174109A1

公开(公告)日：2016-06-16

申请号：US14968339

申请日：2015-12-14

Applicant: QUALCOMM Incorporated

Inventor： Srinivas Yerramalli ,  Tao Luo ,  Siddhartha Mallik ,  Xiaoxia Zhang ,  Aleksandar Damnjanovic ,  Kiran Kumar Somasundaram

IPC: H04W28/26 ,  H04W72/04 ,  H04W16/14

CPC classification number: H04W28/26 ,  H04W16/14 ,  H04W72/0446 ,  H04W72/1215 ,  H04W74/08

Abstract: Techniques are described for wireless communication. A first method includes contending for access to a first channel of a radio frequency spectrum, and transmitting, upon winning contention for access to the first channel, a first channel reservation indication. The contending may be performed by a first node operating according to a first radio access technology. The first channel reservation indication may be understood by a second node operating according to a second radio access technology.

Abstract translation: 技术描述为无线通信。 第一种方法包括：竞争访问无线频谱的第一信道，并且在获胜争用接入第一信道时发送第一信道预留指示。 竞争可以由根据第一无线电接入技术操作的第一节点执行。 根据第二无线电接入技术操作的第二节点可以理解第一信道预留指示。

公开(公告)号：US20160021661A1

公开(公告)日：2016-01-21

申请号：US14695998

申请日：2015-04-24

Applicant: QUALCOMM Incorporated

Inventor： Srinivas Yerramalli ,  Tao Luo ,  Ravi Teja Sukhavasi ,  Makesh Pravin John Wilson ,  Kiran Kumar Somasundaram ,  Onkar Dabeer ,  Durga Prasad Malladi ,  Naga Bhushan ,  Yongbin Wei ,  Peter Gaal ,  Wanshi Chen ,  Hao Xu ,  Aleksandar Damnjanovic

IPC: H04W72/04 ,  H04B17/309 ,  H04W16/14

Abstract: The present disclosure, for example, relates to one or more techniques for scaling the bandwidth of a carrier. Available sub-channels of an unlicensed radio frequency spectrum band may be determined, and the available sub-channels may be included in the carrier. The available sub-channels may be adjacent or non-adjacent sub-channels. The bandwidth of the carrier may be determined according to which sub-channels are included in the carrier. In this way, the bandwidth of the carrier may be scaled according to the available sub-channels in the unlicensed radio frequency spectrum band.

Abstract translation: 本公开例如涉及用于缩放载波的带宽的一种或多种技术。 可以确定未经许可的射频频带的可用子信道，并且可用的子信道可以被包括在载波中。 可用的子信道可以是相邻或不相邻的子信道。 可以根据哪个子信道被包括在载波中来确定载波的带宽。 以这种方式，可以根据非许可射频频带中的可用子信道来缩放载波的带宽。

公开(公告)号：US20150334744A1

公开(公告)日：2015-11-19

申请号：US14712010

申请日：2015-05-14

Applicant: QUALCOMM Incorporated

Inventor： Tingfang Ji ,  Aleksandar Damnjanovic ,  Gavin Bernard Horn ,  Yongbin Wei ,  Durga Prasad Malladi ,  Naga Bhushan ,  Hao Xu ,  Wanshi Chen ,  Tao Luo ,  Kiran Kumar Somasundaram

IPC: H04W74/08 ,  H04L1/00 ,  H04L5/00 ,  H04W74/00

CPC classification number: H04W74/085 ,  H04L1/0008 ,  H04L5/0007 ,  H04W16/14 ,  H04W74/002 ,  H04W74/0816

Abstract: In one aspect of the disclosure, a method of wireless communication includes receiving, at a transmitter, data for transmission over an unlicensed carrier, calculating, at the transmitter, a first available extended clear channel assessment (ECCA) opportunity of the unlicensed carrier after the receiving, wherein the calculating uses at least network information and a pseudo-random number, performing a clear channel assessment (CCA) check, by the transmitter, on the unlicensed carrier at the first available ECCA opportunity, in response to detecting a clear CCA check, transmitting channel reserving signals, by the transmitter, onto the unlicensed carrier, and in response to failing to detect the clear CCA check, calculating, by the transmitter, a next available ECCA opportunity of the unlicensed carrier using at least the network information and another pseudo-random number.

Abstract translation: 在本公开的一个方面，一种无线通信方法包括在发射机处接收用于通过未经许可的载波进行传输的数据，在所述发射机处，计算未经许可的载波的第一可用的扩展清除信道评估（ECCA）机会， 接收，其中所述计算至少使用网络信息和伪随机数，以响应于检测到明确的CCA检查，在所述第一可用ECCA机会的情况下，由所述发射机在所述未经许可的载体上执行清除信道评估（CCA）检查 由所述发射机将所述信道保留信号发送到所述未许可的载波上，并且响应于未能检测到所述明确的CCA检查，由所述发射机计算所述无许可载波的下一个可用的ECCA机会，使用至少所述网络信息和另一个 伪随机数。

公开(公告)号：US20150319784A1

公开(公告)日：2015-11-05

申请号：US14618704

申请日：2015-02-10

Applicant: QUALCOMM Incorporated

Inventor： Naga Bhushan ,  Durga Prasad Malladi ,  Ahmed Kamel Sadek ,  Kiran Kumar Somasundaram ,  Anastasios Stamoulis ,  Aleksandar Damnjanovic ,  Yongbin Wei ,  Dexu Lin

IPC: H04W74/08

CPC classification number: H04W74/08 ,  H04W74/0816

Abstract: Techniques are described for wireless communication. One method includes implementing, at a first node, a first access protocol to contend for access to a wireless communication medium shared by a plurality of nodes; determining whether a triggering event has occurred; and implementing, at the first node, a second access protocol to contend for access to the wireless communication medium based at least in part on a determination that the triggering event has occurred.

Abstract translation: 技术描述为无线通信。 一种方法包括在第一节点处实施第一接入协议以争取接入由多个节点共享的无线通信介质; 确定触发事件是否发生; 以及至少部分地基于所述触发事件已经发生的确定，在所述第一节点处实施第二接入协议以争夺对所述无线通信介质的接入。

公开(公告)号：US20150110012A1

公开(公告)日：2015-04-23

申请号：US14332633

申请日：2014-07-16

Applicant: QUALCOMM Incorporated

Inventor： Naga Bhushan ,  Durga Prasad Malladi ,  Tao Luo ,  Aleksandar Damnjanovic ,  Kiran Kumar Somasundaram ,  Hao Xu

IPC: H04W72/04

CPC classification number: H04W74/0816 ,  H04W74/08

Abstract: Techniques are described for channel access in a radio frequency spectrum band shared by a number of asynchronous operators. One or more clear channel assessment (CCA) procedures may be used to contend for one or more transmission periods in the radio frequency spectrum band. When the contention is won for one or more transmission periods, a determination may be made as to whether the a number of transmission periods for which contention has been won is equal to or greater than a threshold number of consecutive transmission periods. If the number of transmission periods for which contention has been won is at or above the threshold number, occupancy of the radio frequency spectrum band may be relinquished for a period of time, in order to allow another operator to access the radio frequency spectrum band.

Abstract translation: 描述了由许多异步运算符共享的射频频带中的信道接入技术。 可以使用一个或多个清除信道评估（CCA）过程来争夺无线电频谱带中的一个或多个传输周期。 当在一个或多个发送周期中获胜时，可以确定竞争已经赢得的发送周期的数量是否等于或大于连续发送周期的阈值数。 如果争用争用的发送期间的数量等于或高于阈值数，则可以在一段时间内放弃无线电频谱带的占用，以允许另一操作者访问无线电频谱带。

公开(公告)号：US20140329526A1

公开(公告)日：2014-11-06

申请号：US14270295

申请日：2014-05-05

Applicant: QUALCOMM Incorporated

Inventor： Jay Kumar Sundararajan ,  Manu Sharma ,  Arnaud Meylan ,  Gavin Bernard Horn ,  Kiran Kumar Somasundaram

IPC: H04W72/08 ,  H04W92/02

CPC classification number: H04W36/24 ,  H04W36/00 ,  H04W36/0022 ,  H04W36/0066 ,  H04W36/0083 ,  H04W36/14 ,  H04W88/06 ,  H04W88/10

Abstract: Methods, systems, and devices are described for managing network communication between a UE and network equipment. The communication between the UE and the network equipment may be established over a first radio access technology (RAT) and a second RAT, and a coupling between the first RAT and the second RAT may be identified in the communication between the UE and the network equipment. At least one of a reselection procedure or a handover procedure for at least one of the RATs may be adapted based on the identified coupling between the first RAT and the second RAT.

Abstract translation: 描述了用于管理UE和网络设备之间的网络通信的方法，系统和设备。 UE和网络设备之间的通信可以通过第一无线接入技术（RAT）和第二RAT建立，并且可以在UE和网络设备之间的通信中识别第一RAT与第二RAT之间的耦合 。 可以基于所识别的第一RAT和第二RAT之间的耦合来适配至少一个RAT的重选过程或切换过程中的至少一个。