公开(公告)号：US20160269159A1

公开(公告)日：2016-09-15

申请号：US14866803

申请日：2015-09-25

Applicant: QUALCOMM Incorporated

Inventor： Joseph Binamira Soriaga ,  Jing Jiang ,  Krishna Kiran Mukkavilli ,  Naga Bhushan ,  Tingfang Ji ,  John Edward Smee

IPC: H04L5/00

CPC classification number: H04L5/0048 ,  H04B7/0452 ,  H04B7/0617 ,  H04L5/0051 ,  H04L25/0222 ,  H04L25/0398 ,  H04W72/0446

Abstract: Systems and techniques are disclosed to enhance the efficiency of available bandwidth between UEs and base stations. A UE transmits a sounding reference signal to the base station, which characterizes the uplink channel based on the SRS received and, using reciprocity, applies the channel characterization for the downlink channel. The base station may form the beam to the UE based on the uplink channel information obtained from the SRS. As the downlink channel changes the base station needs updated information to maintain its beamforming, meaning it needs a new SRS. Transmission of the SRS takes resources; to minimize this, the UE or the base station can determine a period during which the downlink channel will predictably remain coherent and set up a schedule for sending SRS. Alternatively, the UE or the base station can determine on demand that the channel is losing coherence and initiate an on demand SRS.

Abstract translation: 公开了系统和技术来增强UE和基站之间可用带宽的效率。 UE向基站发送探测参考信号，该基站基于所接收的SRS来表征上行链路信道，并且利用互易性对下行链路信道应用信道特性。 基站可以基于从SRS获得的上行链路信道信息向UE形成波束。 当下行链路信道改变时，基站需要更新的信息以维持其波束成形，这意味着它需要新的SRS。 SRS的传输需要资源; 为了使其最小化，UE或基站可以确定下行链路信道可预测地保持相干的周期，并且建立用于发送SRS的调度。 或者，UE或基站可以根据需要确定信道正在丢失一致性并且发起按需SRS。

公开(公告)号：US20160269158A1

公开(公告)日：2016-09-15

申请号：US14866794

申请日：2015-09-25

Applicant: QUALCOMM Incorporated

Inventor： Joseph Binamira Soriaga ,  Jing Jiang ,  Krishna Kiran Mukkavilli ,  Naga Bhushan ,  Tingfang Ji ,  John Edward Smee

IPC: H04L5/00 ,  H04W72/04

CPC classification number: H04L5/0048 ,  H04B7/0452 ,  H04B7/0617 ,  H04L5/0051 ,  H04L25/0222 ,  H04L25/0398 ,  H04W72/0446

Abstract: Systems and techniques are disclosed to enhance the efficiency of available bandwidth between UEs and base stations. A UE transmits a sounding reference signal to the base station, which characterizes the uplink channel based on the SRS received and, using reciprocity, applies the channel characterization for the downlink channel. The base station may form the beam to the UE based on the uplink channel information obtained from the SRS. As the downlink channel changes the base station needs updated information to maintain its beamforming, meaning it needs a new SRS. Transmission of the SRS takes resources; to minimize this, the UE or the base station can determine a period during which the downlink channel will predictably remain coherent and set up a schedule for sending SRS. Alternatively, the UE or the base station can determine on demand that the channel is losing coherence and initiate an on demand SRS.

公开(公告)号：US20160269145A1

公开(公告)日：2016-09-15

申请号：US14856491

申请日：2015-09-16

Applicant: QUALCOMM Incorporated

Inventor： Tingfang Ji ,  John Edward Smee ,  Joseph Binamira Soriaga ,  Naga Bhushan ,  Wei Zeng ,  Krishna Kiran Mukkavilli

IPC: H04L1/00 ,  H04L27/26 ,  H04W72/04

CPC classification number: H04L1/0009 ,  H04B1/7107 ,  H04B2201/70701 ,  H04L27/2601 ,  H04W72/0446

Abstract: Wireless communication devices are adapted to facilitate non-orthogonal underlay transmissions. In one example, wireless communication devices can receive a wireless transmission via a particular time and frequency resource, where the wireless transmission includes a first signal employing a modulation associated with orthogonal wireless communication, and a second signal employing a modulation associated with non-orthogonal wireless communication. The wireless communication device can decode the first signal and the second signal. In another example, wireless communication devices may transmit a first signal utilizing a first type of modulation associated with non-orthogonal wireless communication, where the first signal is transmitted over at least a portion of a time and frequency resource scheduled for a second signal from a second wireless communication device, the second signal utilizing a second type of modulation associated with orthogonal wireless communication. Other aspects, embodiments, and features are also included.

Abstract translation: 无线通信设备适于促进非正交底层传输。 在一个示例中，无线通信设备可以经由特定时间和频率资源接收无线传输，其中无线传输包括采用与正交无线通信相关联的调制的第一信号，以及采用与非正交无线 通讯。 无线通信设备可以对第一信号和第二信号进行解码。 在另一个示例中，无线通信设备可以利用与非正交无线通信相关联的第一类型的调制来发送第一信号，其中第一信号通过调度来自第一信号的第二信号的时间和频率资源的至少一部分被发送 第二无线通信设备，所述第二信号利用与正交无线通信相关联的第二类型的调制。 还包括其他方面，实施例和特征。

公开(公告)号：US09426670B2

公开(公告)日：2016-08-23

申请号：US13847709

申请日：2013-03-20

Applicant: QUALCOMM Incorporated

Inventor： Ravi Palanki ,  Alexei Y. Gorokhov ,  Naga Bhushan

IPC: H04B17/00 ,  H04W24/00 ,  H04L1/02 ,  H04W72/08 ,  H04J11/00 ,  H04B17/24 ,  H04B17/345 ,  H04L1/00 ,  H04L5/00 ,  H04W72/04

CPC classification number: H04W24/00 ,  H04B17/24 ,  H04B17/345 ,  H04J11/0053 ,  H04L1/0026 ,  H04L1/0028 ,  H04L1/02 ,  H04L5/0023 ,  H04L5/0035 ,  H04L2001/0092 ,  H04W72/0426 ,  H04W72/085 ,  Y02D70/1222 ,  Y02D70/1242 ,  Y02D70/1262 ,  Y02D70/142 ,  Y02D70/146

Abstract: Systems and methodologies are described herein that facilitate interference measurement and reporting in a network multiple-in-multiple-out (N-MIMO) communication system. As described herein, a network device can measure and report interference corresponding to network nodes outside a designated set of nodes that can cooperatively serve the device. Respective interference reports can additionally identify dominant interfering nodes, correlation between transmit antennas of respective nodes, or the like. Subsequently, respective interference reports can be combined with per-node channel information to manage coordination and scheduling across respective network nodes. As further described herein, interference from a network node can be measured by observing reference and/or synchronization signals from the network node. To aid such observation, respective non-interfering network nodes can define null pilot intervals in which transmission is silenced or otherwise reduced. As additionally described herein, loading information broadcasted by respective interfering network nodes can be identified and utilized in connection with interference calculation.

公开(公告)号：US09398563B2

公开(公告)日：2016-07-19

申请号：US14454530

申请日：2014-08-07

Applicant: QUALCOMM Incorporated

Inventor： Xiaoxia Zhang ,  Durga Prasad Malladi ,  Jun Wang ,  Naga Bhushan

IPC: H04B7/208 ,  H04W72/00 ,  H04W4/06

CPC classification number: H04W72/005 ,  H04W4/06

Abstract: Methods, systems, and devices are described for broadcast signal transmission using a number of nodes in an unlicensed spectrum. A set of nodes may be identified for use in transmission of a broadcast signal, with a first subset of the nodes transmitting the broadcast signal to deliver first content during a first time period, and with a second subset of the nodes transmitting the broadcast signal to deliver second content during a second time period. The first subset of nodes is different than the second subset of nodes. The set of nodes may thus form a single frequency network (SFN) that performs partial SFN operation during the first and second time periods.

Abstract translation: 描述了使用许可频谱中的多个节点的广播信号传输的方法，系统和设备。 可以识别一组节点用于广播信号的传输，节点的第一子集在第一时间周期内传送广播信号以递送第一内容，并且节点的第二子集传送广播信号到 在第二个时间段内提供第二个内容。 节点的第一个子集与节点的第二个子集不同。 因此，该组节点可以形成在第一和第二时间段期间执行部分SFN操作的单频网络（SFN）。

公开(公告)号：US20160157151A1

公开(公告)日：2016-06-02

申请号：US15015906

申请日：2016-02-04

Applicant: QUALCOMM Incorporated

Inventor： Durga Prasad Malladi ,  Yongbin Wei ,  Aleksandar Damnjanovic ,  Naga Bhushan

IPC: H04W36/18 ,  H04W16/32 ,  H04W72/12 ,  H04L5/00 ,  H04W84/04 ,  H04W76/02

CPC classification number: H04W36/18 ,  H04L1/1812 ,  H04L5/001 ,  H04L5/0053 ,  H04L5/0055 ,  H04L5/0057 ,  H04L2001/0092 ,  H04W16/32 ,  H04W72/0453 ,  H04W72/1278 ,  H04W72/1284 ,  H04W84/047 ,  H04W88/02 ,  H04W88/08

Abstract: A communication environment with carrier aggregation (CA) is disclosed in which a UE is configured for communication at a first time with a first network node via a primary component carrier (PCC) and a second network node via a secondary CC (SCC). At a second time, the UE is configured for communication with a third network node via the SCC at a second time. The UE maintains communication with the first network node via the PCC without triggering handover at the UE during the establishing communication with the third network node.

公开(公告)号：US09345047B2

公开(公告)日：2016-05-17

申请号：US14341135

申请日：2014-07-25

Applicant: QUALCOMM Incorporated

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

IPC: H04W74/08 ,  H04W74/00 ,  H04W16/14 ,  H04W72/04 ,  H04W72/06 ,  H04W76/00 ,  H04W28/08 ,  H04W24/02

CPC classification number: H04W74/08 ,  H04W16/14 ,  H04W24/02 ,  H04W28/08 ,  H04W72/0453 ,  H04W72/06 ,  H04W74/006 ,  H04W74/0808 ,  H04W76/00 ,  H04W76/28

Abstract: Techniques are described for wireless communications utilizing multiple clear channel assessment (CCA) procedures for access to a radio frequency spectrum band. A first CCA procedure is performed to determine availability of the radio frequency spectrum band and to contend for use of the radio frequency spectrum band among a number of coordinated operators transmitting on the radio frequency spectrum band. A successful first CCA procedure results in winning the contention for the radio frequency spectrum band for a transmission period that is coordinated among the number of coordinated operators. Upon the successful first CCA procedure, a second CCA procedure is performed during a discontinuous transmission (DTX) period in the transmission period to determine continued availability of the radio frequency spectrum band. The timing of the DTX periods is determined based on timing of radio transmissions having priority use of the radio frequency spectrum band.

Abstract translation: 描述了利用用于接入射频频带的多个清除信道评估（CCA）程序的无线通信技术。 执行第一CCA过程以确定无线电频谱带的可用性，并且在多个在无线电频带上发送的协调运营商中使用无线电频谱带进行竞争。 成功的第一个CCA程序导致在协调运营商的数量之间协调的传输周期中获得无线电频谱带的争用。 在成功的第一CCA过程之后，在传输周期中的不连续传输（DTX）周期期间执行第二CCA过程，以确定射频频带的持续可用性。 基于具有优先使用无线电频谱带的无线电传输的定时确定DTX周期的定时。

公开(公告)号：US20160095120A1

公开(公告)日：2016-03-31

申请号：US14865640

申请日：2015-09-25

Applicant: QUALCOMM Incorporated

Inventor： Peter Gaal ,  Srinivas Yerramalli ,  Durga Prasad Malladi ,  Naga Bhushan ,  Yongbin Wei ,  Tao Luo ,  Hao Xu ,  Wanshi Chen ,  Shimman Arvind Patel ,  Aleksandar Damnjanovic ,  Xiaoxia Zhang

IPC: H04W72/04 ,  H04W16/14 ,  H04W40/24 ,  H04L5/00

CPC classification number: H04W72/0453 ,  H04L1/0071 ,  H04L5/0007 ,  H04L5/001 ,  H04L5/0048 ,  H04L5/0051 ,  H04L5/0053 ,  H04W16/14 ,  H04W40/244 ,  H04W72/0406 ,  H04W74/0816 ,  H04W88/02 ,  H04W88/08

Abstract: Techniques are described for wireless communication. A first method includes winning a contention for access to an unlicensed radio frequency spectrum band, and transmitting at least a portion of a channel usage beacon signal (CUBS) over the unlicensed radio frequency spectrum band. The at least portion of the CUBS is transmitted in a number of frequency interlaces of the unlicensed radio frequency spectrum band. A second method includes winning a contention for access to an unlicensed radio frequency spectrum band; determining whether the contention is won within a threshold time before a next symbol period boundary; and transmitting at least a portion of a CUBS over the unlicensed radio frequency spectrum band. The at least portion of the CUBS is transmitted during a preamble including a fractional period of a first symbol period. The at least portion of the CUBS may be based at least in part on the determining.

Abstract translation: 技术描述为无线通信。 第一种方法包括获得对未经许可的射频频带的访问的争用，以及通过未许可的射频频带发送信道使用信标信号（CUBS）的至少一部分。 CUBS的至少一部分在非许可射频频带的多个频率交织中被发送。 第二种方法包括获得对未经许可的射频频带的访问的竞争; 确定在下一个符号周期边界之前的阈值时间内是否赢得争用; 以及在未经许可的射频频带上发送CUBS的至少一部分。 在包括第一符号周期的分数周期的前导码期间发送CUBS的至少一部分。 CUBS的至少部分可以至少部分地基于确定。

公开(公告)号：US09265047B2

公开(公告)日：2016-02-16

申请号：US13826426

申请日：2013-03-14

Applicant: QUALCOMM Incorporated

Inventor： Siddhartha Mallik ,  Naga Bhushan ,  Aleksandar Damnjanovic ,  Kiran Somasundaram ,  Anastasios Stamoulis

IPC: H04W72/08 ,  H04W24/02 ,  H04W84/04

CPC classification number: H04W72/08 ,  H04W24/02 ,  H04W84/047

Abstract: Aspects of the present disclosure relate to techniques for activating opportunistic relays. A combination of uplink and downlink pilots may be used to switch on user equipment relays (UeNBs) in an effort to make more accurate measurements in an effort to enable handovers. According to aspects of the present disclosure, a relay may evaluate one or more channel conditions, determine whether or not to transmit downlink reference signals to a UE based on the evaluation, and transmit downlink reference signals to the UE based on the determination. According to aspects, a relay may determine a set of resources reserved for transmission of uplink pilots by UEs, monitor the set of resources to detect transmission of uplink pilots, and report, to an eNB, a power at which the uplink pilots were received.

Abstract translation: 本公开的方面涉及激活机会性继电器的技术。 可以使用上行链路和下行链路导频的组合来切换用户设备中继（UeNB），以努力进行更准确的测量以努力实现切换。 根据本公开的方面，中继器可以基于评估来评估一个或多个信道状况，确定是否向UE发送下行链路参考信号，并且基于该确定向UE发送下行链路参考信号。 根据方面，中继器可以确定UE为上行链路导频传输而保留的一组资源，监视资源集合以检测上行链路导频的传输，并向eNB报告上行链路导频接收的功率。

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。