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：US20150319021A1

公开(公告)日：2015-11-05

申请号：US14700965

申请日：2015-04-30

Applicant: QUALCOMM Incorporated

Inventor： Feng Xue ,  Tao Luo ,  Yongbin Wei

IPC: H04L27/00 ,  H04W24/08 ,  H04W72/04

Abstract: Aspects described herein relate to modulating control data in wireless communications. First control data for a first device can be modulated in an enhancement layer of a control data resource based at least in part on whether the control data resource includes second control data for a second device, and transmitted over the control data resource. A signal can be received from an access point comprising at least one control data resource. One of a plurality of modulation schemes utilized to modulate the at least one control data resource and an associated layer can be determined. The signal can be demodulated according to the one of the plurality of modulation schemes and the layer to obtain control data in the at least one control data resource.

Abstract translation: 本文描述的方面涉及在无线通信中调制控制数据。 至少部分地基于控制数据资源是否包括用于第二设备的第二控制数据并且通过控制数据资源传输，可以在控制数据资源的增强层中调制用于第一设备的第一控制数据。 可以从包括至少一个控制数据资源的接入点接收信号。 可以确定用于调制至少一个控制数据资源和相关层的多个调制方案之一。 可以根据多个调制方案和该层中的一个调制信号来获得至少一个控制数据资源中的控制数据。

公开(公告)号：US20150270925A1

公开(公告)日：2015-09-24

申请号：US14218198

申请日：2014-03-18

Applicant: QUALCOMM Incorporated

Inventor： Dexu Lin ,  Jelena Damnjanovic ,  Anastasios Stamoulis ,  Yongbin Wei ,  Kiran K. Somasundaram ,  Shi Cong Yang

IPC: H04L1/00 ,  H04W72/04 ,  H04W72/08

CPC classification number: H04L1/0015 ,  H04L1/0003 ,  H04L1/0009

Abstract: A modulation and coding scheme (MCS) is selected for one or more transmissions from a first wireless device to a second wireless device, based at least in part on interference at the second wireless device during a time period. The interference excludes wireless signals present at the second wireless device at first times during the time period when the first wireless device is transmitting and at second times during the time period when the first wireless device detects transmissions.

Abstract translation: 至少部分地基于第一无线设备在一段时间内的第二无线设备的干扰，为从第一无线设备到第二无线设备的一个或多个传输选择调制和编码方案（MCS）。 干扰在第一无线设备正在发送的时间段期间的第一时间排除在第二无线设备处存在的无线信号，并且在第一无线设备检测到传输的时间段期间排除第二时间。

公开(公告)号：US20150237548A1

公开(公告)日：2015-08-20

申请号：US14624787

申请日：2015-02-18

Applicant: QUALCOMM Incorporated

Inventor： Tao Luo ,  Durga Prasad Malladi ,  Xiliang Luo ,  Yongbin Wei

IPC: H04W36/06 ,  H04L5/00

CPC classification number: H04W36/06 ,  H04L5/0076 ,  H04L27/0006

Abstract: Antenna selection and reassignment in multiple radio access technology (RAT) communication systems with unlicensed spectrum is disclosed. Aspects include a user equipment (UE) monitoring for a channel reserving signal in each frame from multiple transmission sources. If no channel reserving signal is detected, then the UE reassigns one or more of the antennas previously assigned to the transmission sources with no activity detected. Additional aspects include base stations that determine a clear channel assessment (CCA) status for each of unlicensed carrier designated for transmission to a UE. The base station will transmit a receive antenna usage adjustment signal to the UE based on the determined CCA status.

Abstract translation: 公开了具有非许可频谱的多个无线电接入技术（RAT）通信系统中的天线选择和重新分配。 方面包括对来自多个传输源的每帧中的信道保留信号进行监视的用户设备（UE）。 如果没有检测到信道保留信号，则UE重新分配先前分配给传输源的一个或多个天线，没有检测到活动。 另外的方面包括为指定用于向UE传输的未授权载体中的每一个确定清楚信道评估（CCA）状态的基站。 基站将基于所确定的CCA状态向UE发送接收天线使用调整信号。

公开(公告)号：US20150181597A1

公开(公告)日：2015-06-25

申请号：US14573577

申请日：2014-12-17

Applicant: QUALCOMM Incorporated

Inventor： Durga Prasad Malladi ,  Yongbin Wei

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

CPC classification number: H04W72/0446 ,  H04J11/00 ,  H04J2011/0009 ,  H04J2011/0013 ,  H04L1/18 ,  H04L5/0007 ,  H04L5/001 ,  H04L5/0037 ,  H04L5/0044 ,  H04L5/0055 ,  H04L5/0076 ,  H04L5/14 ,  H04L27/2602 ,  H04L27/2605 ,  H04L43/0864 ,  H04W16/32 ,  H04W72/0453 ,  H04W74/08

Abstract: Methods, systems, and devices are described for hierarchical communications within a wireless communications system. An eNB and/or a UE may be configured to operate within the wireless communications system which is at least partially defined through a first layer with first layer transmissions having a first subframe type and a second layer with second layer transmissions having a second subframe type. The first subframe type may have a first round trip time (RTT) between transmission and acknowledgment of receipt of the transmission, and the second layer may have a second RTT that is less than the first RTT. Subframes of the first subframe type may be multiplexed with subframes of the second subframe type, such as through time division multiplexing.

Abstract translation: 描述了用于无线通信系统内的分层通信的方法，系统和设备。 eNB和/或UE可以被配置为在无线通信系统内操作，所述无线通信系统至少部分地通过具有第一子帧类型的第一层传输的第一层定义，而具有第二子帧类型的第二层传输的第二层。 第一子帧类型可以在传输和传输的接收确认之间具有第一往返时间（RTT），并且第二层可以具有小于第一RTT的第二RTT。 第一子帧类型的子帧可以与第二子帧类型的子帧复用，例如通过时分复用。

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：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。

公开(公告)号：US20150049709A1

公开(公告)日：2015-02-19

申请号：US14456880

申请日：2014-08-11

Applicant: QUALCOMM Incorporated

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

IPC: H04L5/00 ,  H04W74/08

CPC classification number: H04L5/0055 ,  H04L1/1614 ,  H04L1/1621 ,  H04W16/14 ,  H04W74/0816

Abstract: Methods, systems, devices, and apparatuses are described for wireless communications. In one method, a set of one or more data subframes of a data frame may be transmitted over an unlicensed spectrum, to a user equipment (UE), during a transmission period. A group hybrid automatic repeat request (HARQ) feedback message for a plurality of data subframes including at least one of the data subframes in the set of one or more data subframes may then be received over the unlicensed spectrum, from the UE, during the transmission period. In another method, a set of one or more data subframes of a data frame may be received over an unlicensed spectrum during a transmission period. A group HARQ feedback message for a plurality of data subframes including at least one of the data subframes in the set of one or more data subframes may then be transmitted over the unlicensed spectrum during the transmission period.

Abstract translation: 描述了用于无线通信的方法，系统，设备和设备。 在一种方法中，数据帧的一组或多个数据子帧的集合可以在传输期间通过非授权频谱发送给用户设备（UE）。 然后可以在传输期间从UE在非许可频谱上接收包括一个或多个数据子帧的集合中的至少一个数据子帧的多个数据子帧的组混合自动重传请求（HARQ）反馈消息 期。 在另一种方法中，数据帧的一个或多个数据子帧的集合可以在传输周期期间通过非授权频谱接收。 然后可以在传输周期期间通过未授权的频谱来发送包括一个或多个数据子帧的集合中的至少一个数据子帧的多个数据子帧的组HARQ反馈消息。