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：US20150334685A1

公开(公告)日：2015-11-19

申请号：US14533954

申请日：2014-11-05

Applicant: QUALCOMM Incorporated

Inventor： Tingfang Ji ,  John Edward Smee ,  Joseph Binamira Soriaga ,  Naga Bhushan ,  Peter Gaal ,  Alexei Yurievitch Gorokhov ,  Krishna Kiran Mukkavilli ,  Michael Alexander Howard ,  Rotem Cooper ,  Peter Ang

IPC: H04W72/04 ,  H04W56/00

CPC classification number: H04W72/1231 ,  H04W56/002 ,  H04W72/042 ,  H04W72/1247 ,  H04W72/1278

Abstract: Aspects of the disclosure provide for a thin control channel structure that can be utilized to enable multiplexing of two or more data transmission formats. For example, a thin control channel may carry information that enables ongoing transmissions utilizing a first, relatively long transmission time interval (TTI) to be punctured, and during the punctured portion of the long TTI, a transmission utilizing a second, relatively short TTI may be inserted. This puncturing is enabled by virtue of a thin channel structure wherein a control channel can carry scheduling information, grants, etc., informing receiving devices of the puncturing that is occurring or will occur. Furthermore, the thin control channel can be utilized to carry other control information, not being limited to puncturing information. Other aspects, embodiments, and features are also claimed and described.

Abstract translation: 本公开的方面提供了可以用于实现两个或多个数据传输格式的多路复用的薄控制信道结构。 例如，薄控制信道可以携带使得能够利用第一个相对长的传输时间间隔（TTI）进行穿孔的信息，并且在长TTI的穿孔部分期间，利用第二相对较短的TTI的传输可以 被插入。 这种打孔是通过细通道结构实现的，其中控制信道可以携带调度信息，授权等，通知接收设备正在发生或将发生的穿孔。 此外，薄控制信道可以用于承载其他控制信息，不限于打孔信息。 还要求和描述其它方面，实施例和特征。

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：US09144036B2

公开(公告)日：2015-09-22

申请号：US13755285

申请日：2013-01-31

Applicant: QUALCOMM Incorporated

Inventor： Alexei Yurievitch Gorokhov ,  Jaber Mohammad Borran ,  Avneesh Agrawal ,  Naga Bhushan ,  Tamer Adel Kadous ,  Ayman Fawzy Naguib

IPC: G08C17/00 ,  H04W52/30 ,  H04L5/00 ,  H04W52/04 ,  H04W72/06

CPC classification number: H04W52/30 ,  H04L5/0007 ,  H04L5/0037 ,  H04L5/0058 ,  H04W52/04 ,  H04W72/06 ,  Y02B30/50

Abstract: Systems and methodologies are described that facilitate mitigating effect of non-linear distortion from a power amplifier on a spectral mask margin. Power limit indications can be analyzed in scheduling mobile devices. Mobile devices with power limits can be scheduled on inner subbands. The power limits can be based at least in part on power amplifier headroom information. Other mobile devices can employ remaining portions of an allocated spectrum. Further, mobile devices can evaluate and establish a power amplifier backoff based upon the subband scheduling.

Abstract translation: 描述了有助于减轻来自功率放大器的非线性失真对光谱掩模余量的影响的系统和方法。 功率限制指示可以在调度移动设备中进行分析。 具有功率限制的移动设备可以在内部子带上进行调度。 功率限制可以至少部分地基于功率放大器余量信息。 其他移动设备可以使用所分配频谱的剩余部分。 此外，移动设备可以基于子带调度来评估和建立功率放大器的退避。

公开(公告)号：US09084240B2

公开(公告)日：2015-07-14

申请号：US14328996

申请日：2014-07-11

Applicant: QUALCOMM Incorporated

Inventor： Renqiu Wang ,  Dung Ngoc Doan ,  Ravi Palanki ,  Naga Bhushan

IPC: H04W72/04 ,  H04W76/02 ,  H04W84/18

CPC classification number: H04W72/04 ,  H04W76/14 ,  H04W84/18

Abstract: Techniques for supporting peer-to-peer (P2P) communication and wide area network (WAN) communication are disclosed. In one aspect, a method operable by a network entity to facilitate peer-to-peer (P2P) communication in a wireless network includes designating a first group of subframes in a wide area network (WAN) uplink (UL) spectrum for WAN communication. The method includes designating a second group of subframes in the WAN UL spectrum for P2P communication. The method further includes allowing P2P mobile entities to use WAN physical layer channels in the second group of subframes to communicate P2P control information and P2P data.

Abstract translation: 公开了用于支持对等（P2P）通信和广域网（WAN）通信的技术。 一方面，由网络实体可操作以促进无线网络中的对等（P2P）通信的方法包括在广域网通信的广域网（WAN）上行链路（UL）频谱中指定第一组子帧。 该方法包括在用于P2P通信的WAN UL频谱中指定第二组子帧。 该方法还包括允许P2P移动实体在第二组子帧中使用WAN物理层信道来传送P2P控制信息和P2P数据。

公开(公告)号：US20150173056A1

公开(公告)日：2015-06-18

申请号：US14565063

申请日：2014-12-09

Applicant: QUALCOMM Incorporated

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

IPC: H04W72/04 ,  H04L5/00

CPC classification number: H04W24/10 ,  H04L5/0048 ,  H04W16/14 ,  H04W72/04 ,  H04W72/0406 ,  H04W74/0808 ,  H04W84/12

Abstract: Channel state information (CSI) feedback in long term evolution (LTE) and LTE-Advanced (LTE-A) networks including unlicensed spectrum is disclosed in which a base station obtains clear channel assessment (CCA) result information from neighboring base stations, either directly or by determining such results from measurement or reports from user equipment (UE) served by the base station. The base station may then generate control signaling based on the CCA result information for transmission to the one or more UEs served by the base station.

Abstract translation: 公开了包括非许可频谱的长期演进（LTE）和LTE-Advanced（LTE-A）网络中的信道状态信息（CSI）反馈，其中基站从邻近基站获得明确的信道评估（CCA）结果信息， 或者通过从由基站服务的用户设备（UE）的测量或报告确定这样的结果。 然后，基站可以基于CCA结果信息来生成控制信令，以便发送给由基站服务的一个或多个UE。

公开(公告)号：US20150156638A1

公开(公告)日：2015-06-04

申请号：US14532266

申请日：2014-11-04

Applicant: QUALCOMM Incorporated

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

IPC: H04W16/14

Abstract: Methods and apparatus for wireless communication are described. A method may include receiving at a user equipment (UE) a number of allocated interlaces for an uplink transmission over a shared spectrum, each of which may include a plurality of non-contiguous resource blocks (RB) of the shared spectrum. In some cases, the number of allocated interlaces is unsupported by joint interlace precoding hardware of the UE and the allocated interlaces may be partitioned into subsets of interlaces which may be a size supported by the joint interlace precoding hardware. Reference signals may be generated for the RBs of the allocated interlaces according to a reference signal sequence based on an ordering of the RBs for the allocated interlaces within the shared spectrum.

Abstract translation: 描述用于无线通信的方法和装置。 一种方法可以包括在用户设备（UE）处接收用于在共享频谱上的上行链路传输的多个分配的交织，其中每一个可以包括共享频谱的多个不连续的资源块（RB）。 在一些情况下，分配的交织的数目不受UE的联合交织预编码硬件的支持，并且所分配的交织可以划分成可以是由联合交错预编码硬件支持的尺寸的交织子集。 可以根据基于参考信号序列的所分配的交织的RB，为共享频谱内所分配的交织的RB的排序生成参考信号。

公开(公告)号：US20150148053A1

公开(公告)日：2015-05-28

申请号：US14552127

申请日：2014-11-24

Applicant: QUALCOMM INCORPORATED

Inventor： Shimman Arvind Patel ,  Tao Luo ,  Naga Bhushan ,  Peter Gaal ,  Hao Xu

IPC: H04W56/00 ,  H04W72/04

CPC classification number: H04W56/001 ,  H04W16/14 ,  H04W28/08 ,  H04W72/0426 ,  H04W72/0446 ,  H04W74/0808 ,  H04W84/042 ,  H04W88/08

Abstract: Methods, systems, and devices are described for wireless communication. One method may include receiving, at a first base station, at least one clear channel assessment (CCA)-exempt transmission (CET) indicating timing information of at least a second base station over a shared spectrum. A timing of the first base station may be adjusted based on the received timing information of the second base station. Another method of wireless communication may include identifying a CCA slot assigned to a first base station for a frame, which may be associated with time synchronization, of a shared spectrum. A CCA may be performed at the identified CCA slot for the frame. When the CCA is successful, a first timing information of the first base station may be selectively transmitted during the frame. When the CCA is unsuccessful, a second timing information of a second base station may be listened for during the frame.

Abstract translation: 描述了用于无线通信的方法，系统和设备。 一种方法可以包括在第一基站处接收指示共享频谱上至少第二基站的定时信息的至少一个清除信道评估（CCA）免除传输（CET）。 可以基于接收到的第二基站的定时信息来调整第一基站的定时。 无线通信的另一种方法可以包括识别为共享频谱的可能与时间同步相关联的帧分配给第一基站的CCA时隙。 可以在所识别的帧的CCA时隙上执行CCA。 当CCA成功时，可以在帧期间选择性地发送第一基站的第一定时信息。 当CCA不成功时，可以在帧期间收听第二基站的第二定时信息。

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：US20150098397A1

公开(公告)日：2015-04-09

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: H04W72/04 ,  H04W28/08 ,  H04W72/06 ,  H04W16/14

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。