公开(公告)号：US20150146680A1

公开(公告)日：2015-05-28

申请号：US14501929

申请日：2014-09-30

Applicant: QUALCOMM Incorporated

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

IPC: H04L5/00 ,  H04W72/06 ,  H04W72/04

CPC classification number: H04L5/0035 ,  H04B7/024 ,  H04B7/0452 ,  H04B7/0608 ,  H04B7/0626 ,  H04J11/0053 ,  H04L5/0053 ,  H04W72/0426 ,  H04W72/0446 ,  H04W72/06 ,  H04W74/0808

Abstract: Techniques are described for downlink coordinated multi-point (CoMP) procedures for access to a contention-based radio frequency spectrum band. A base station performs a contention procedure, such as a clear channel assessment (CCA) procedure, for access to the radio frequency spectrum band. The base station determines whether contention has been won for a time period, and communicates whether or not contention has been won to other base stations in a CoMP cooperating set. Based on the information exchanged between base stations in the CoMP cooperating set, coordinated communications is initiated to a UE with two or more of the base stations in the CoMP cooperating set.

Abstract translation: 描述了用于接入基于争用的射频频带的下行链路协调多点（CoMP）过程的技术。 基站执行竞争程序，例如清除信道评估（CCA）过程，用于接入射频频带。 基站确定是否已经赢了一段时间的争用，并且在CoMP协作集合中通信竞争是否已经被赢得到其他基站。 基于CoMP协作集中的基站之间交换的信息，在具有CoMP协作集中的两个或多个基站的UE发起协调通信。

公开(公告)号：US20150110065A1

公开(公告)日：2015-04-23

申请号：US14518715

申请日：2014-10-20

Applicant: QUALCOMM Incorporated

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

IPC: H04W74/04 ,  H04W72/04

CPC classification number: H04W74/04 ,  H04W16/14 ,  H04W72/0446 ,  H04W74/0808

Abstract: Management of shared transmission resources is disclosed for multiple radio access networks (RANs) sharing access to a finite number of transmission slots. Multiple permutations of slot assignments are configured in which each competing network is assigned a specific slot in each permutation. The sequence of permutations provides a fair distribution of spectrum access by the competing networks, such that in each permutation of the permutation sequence, networks assigned to lower priority slots may be assigned to higher priority slots in later permutations.

Abstract translation: 公开了共享传输资源的管理，用于共享对有限数量的传输时隙的访问的多个无线电接入网络（RAN）。 配置时隙分配的多个排列，其中每个竞争网络在每个排列中被分配特定时隙。 置换序列提供了竞争网络的频谱接入的公平分布，使得在置换序列的每个置换中，分配给较低优先级时隙的网络可以在后面的排列中分配给较高优先级时隙。

公开(公告)号：US09014143B2

公开(公告)日：2015-04-21

申请号：US14181580

申请日：2014-02-14

Applicant: QUALCOMM Incorporated

Inventor： Aleksandar Damnjanovic ,  Durga Prasad Malladi ,  Ajay Gupta ,  Peter Gaal ,  Wanshi Chen ,  Yongbin Wei ,  Tao Luo

IPC: H04W4/00 ,  H04W36/34 ,  H04W74/08 ,  H04W52/02 ,  H04W48/12

CPC classification number: H04W74/006 ,  H04J11/0069 ,  H04L5/0032 ,  H04W36/0077 ,  H04W36/34 ,  H04W48/12 ,  H04W52/0206 ,  H04W74/0833

Abstract: A method, a computer program product, and an apparatus are provided. The apparatus may be a UE. The UE receives an information block from a first base station while camped on a second base station. In an aspect, the information block includes an indication of a random access configuration for performing at least a part of a random access procedure. The UE determines to reselect to the first base station from the second base station. The UE performs at least a part of a random access procedure with the first base station based on the indicated random access configuration to reselect from a second base station to the first base station.

Abstract translation: 提供了一种方法，计算机程序产品和设备。 该装置可以是UE。 UE在第二基站驻留时，从第一基站接收信息块。 在一方面，信息块包括用于执行随机访问过程的至少一部分的随机访问配置的指示。 UE确定从第二基站重新选择到第一基站。 UE基于所指示的随机接入配置，与第一基站进行随机接入过程的至少一部分，以从第二基站重新选择到第一基站。

公开(公告)号：US20150092758A1

公开(公告)日：2015-04-02

申请号：US14489239

申请日：2014-09-17

Applicant: QUALCOMM Incorporated

Inventor： Wanshi Chen ,  Tao Luo ,  Yongbin Wei ,  Durga Prasad Malladi

IPC: H04W16/14 ,  H04W84/12

CPC classification number: H04W16/14 ,  H04W74/0808 ,  H04W84/12 ,  H04W88/02 ,  H04W88/08

Abstract: Methods, systems, apparatuses, and devices are described for wireless communications. In one method, an opportunity may be identified for a first operator to perform a clear channel assessment (CCA) for a shared spectrum. The opportunity may be based on a priority of the first operator with respect to at least one other operator associated with the shared spectrum. The CCA may be performed for the shared spectrum during the identified opportunity to determine whether the shared spectrum is available for a transmission during a transmission interval.

Abstract translation: 描述了用于无线通信的方法，系统，装置和设备。 在一种方法中，可以为第一运营商识别为共享频谱执行清晰信道评估（CCA）的机会。 该机会可以基于第一运营商相对于与共享频谱相关联的至少一个其他运营商的优先级。 可以在所识别的机会期间为共享频谱执行CCA，以确定共享频谱是否可用于传输间隔期间的传输。

公开(公告)号：US20150085797A1

公开(公告)日：2015-03-26

申请号：US14493067

申请日：2014-09-22

Applicant: QUALCOMM Incorporated

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

IPC: H04W74/08 ,  H04J13/10 ,  H04W16/14 ,  H04W72/04 ,  H04J3/16 ,  H04L5/00 ,  H04W74/00

CPC classification number: H04W74/0866 ,  H04J3/16 ,  H04J13/10 ,  H04L5/0041 ,  H04L5/0048 ,  H04L5/0053 ,  H04L5/0094 ,  H04W16/14 ,  H04W72/0453 ,  H04W74/002

Abstract: Uplink waveforms for operating long term evolution (LTE) in an unlicensed band (i.e., long term evolution-unlicensed (LTE-U) communication) are disclosed. Carrier aggregation (CA) and standalone (SA) are disclosed. LTE on the licensed channel may provide both control and data, LTE on the unlicensed channel may provide data. Managing variable transmission time interval (TTI) continuous transmission is disclosed for transmission over multiple subframes of an unlicensed carrier in LTE-U. Listen-before-talk (LBT) requirements of unlicensed carriers provide for additional channel occupancy constraints when scheduling resources for multiple UEs for variable TTI continuous uplink transmissions over multiple subframes. A joint control channel is disclosed that provides control information for all of the potentially available subframes to be scheduled for the uplink transmissions. In addition to management of the variable TTI continuous transmissions, adjustments to uplink signal parameters are also disclosed that address the constraints due to the LBT requirements of unlicensed carriers.

Abstract translation: 公开了用于在未许可频带（即，长期进化 - 未许可（LTE-U）通信）中进行长期演进（LTE）的上行链路波形。 公开了载波聚合（CA）和独立（SA）。 许可频道上的LTE可以提供控制和数据两者，在非许可频道上的LTE可以提供数据。 公开了管理可变传输时间间隔（TTI）连续传输用于在LTE-U中的未许可载波的多个子帧上的传输。 在对多个UE进行可变TTI连续上行链路传输的多个子帧调度资源时，未经许可的载波的听话（LBT）要求提供额外的信道占用约束。 公开了一种联合控制信道，其提供用于针对上行链路传输调度的所有可能可用的子帧的控制信息。 除了可变TTI连续传输的管理之外，还公开了对上行链路信号参数的调整，其解决了由于未授权载波的LBT要求引起的约束。

公开(公告)号：US08989121B2

公开(公告)日：2015-03-24

申请号：US13663912

申请日：2012-10-30

Applicant: QUALCOMM Incorporated

Inventor： Tao Luo ,  Yongbin Wei ,  Peter Gaal ,  Durga Prasad Malladi ,  Wanshi Chen

IPC: H04W4/00 ,  H04W72/04 ,  H04L5/00 ,  H04W72/08 ,  H04L1/00

CPC classification number: H04W72/042 ,  H04L1/0046 ,  H04L5/0048 ,  H04L5/0053 ,  H04L5/0073 ,  H04W72/082

Abstract: Certain aspects of the present disclosure relate to a technique for blindly decoding interfering cell Physical Downlink Control Channel (PDCCH) to acquire interfering cell Physical Downlink Shared Channel (PDSCH) transmission information. A UE may determine, for one or more aggregation levels, sets of CCEs that potentially include the PDCCH, based on available CCEs for each aggregation level and identify a set of decoding candidates based on the determination. Once the decoding candidates are decoded, the UE may perform an error correcting procedure on decoded candidates and prune out unlikely candidates. Likely decoded candidates may be further pruned based on comparison of CRC calculated using information bits only and possible Radio Network Temporary Identifiers (RNTIs). The UE may then interpret content of the PDCCH of the interfering cell based on surviving candidates. The UE may then use the interpreted PDCCH information to determine PDSCH information.

Abstract translation: 本公开的某些方面涉及用于盲目地解码干扰小区物理下行链路控制信道（PDCCH）以获取干扰小区物理下行链路共享信道（PDSCH）传输信息的技术。 基于每个聚合级别的可用CCE，UE可以针对一个或多个聚合级别确定潜在地包括PDCCH的CCE集合，并且基于该确定来识别一组解码候选。 一旦对解码候选进行解码，则UE可以对解码的候选进行纠错处理，并且修剪不太可能的候选者。 可以基于使用仅使用信息比特计算的CRC与可能的无线电网络临时标识符（RNTI）的比较来进一步修剪可能的解码候选。 然后，UE可以基于幸存的候选来解释干扰小区的PDCCH的内容。 然后，UE可以使用经解释的PDCCH信息来确定PDSCH信息。

公开(公告)号：US20150043687A1

公开(公告)日：2015-02-12

申请号：US14453428

申请日：2014-08-06

Applicant: QUALCOMM Incorporated

Inventor： Tao Luo ,  Srinivas Yerramalli ,  Durga Prasad Malladi

IPC: H04B1/00 ,  H04B1/12

CPC classification number: H04B1/006 ,  H04B1/12 ,  H04B1/7107 ,  H04J11/004

Abstract: Techniques are described for wireless communications. In one example, multiple signals including at least a wireless local area network (WLAN) signal and a cellular signal may be received over a bandwidth of an unlicensed radio frequency spectrum band. Digital samples of the signals may be stored in a buffer. At least a portion of the WLAN signal may be reconstructed from the stored digital samples and removed from the stored digital samples before the contents of the buffer are converted to the frequency domain for demodulation and decoding of the cellular signal by a cellular receiver. In another example, multiple signals may be received over a bandwidth of an unlicensed radio frequency spectrum band, and it may be determined whether to apply codeword-level interference cancelation (CWIC) or symbol-level interference cancelation (SLIC) to remove an interference signal in the multiple signals.

Abstract translation: 技术描述为无线通信。 在一个示例中，可以在非许可射频频带的带宽上接收至少包括无线局域网（WLAN）信号和蜂窝信号的多个信号。 信号的数字采样可以存储在缓冲器中。 WLAN信号的至少一部分可以从所存储的数字样本重建，并且在将缓冲器的内容转换为频域以便由蜂窝接收器对蜂窝信号进行解调和解码之前从存储的数字样本中去除。 在另一示例中，可以在非许可射频频带的带宽上接收多个信号，并且可以确定是否应用码字级干扰消除（CWIC）或符号级干扰消除（SLIC）来去除干扰信号 在多个信号中。

公开(公告)号：US20150031382A1

公开(公告)日：2015-01-29

申请号：US14340420

申请日：2014-07-24

Applicant: QUALCOMM Incorporated

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

IPC: H04W68/00 ,  H04W52/02 ,  H04W72/00

CPC classification number: H04W52/0216 ,  H04W48/12 ,  H04W68/025 ,  H04W88/08 ,  Y02D70/00 ,  Y02D70/1242 ,  Y02D70/1262 ,  Y02D70/1264 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/146 ,  Y02D70/21 ,  Y02D70/22 ,  Y02D70/24

Abstract: Methods and apparatus for paging comprise receiving data destined for a UE. The methods and apparatus further comprise determining a short identity for the UE relative to a longer global user equipment identity and identifying a MIB transmission based on a short identity. Moreover, the methods and apparatus comprise activating a bit within a slot of the MIB transmission to indicate that the user equipment listen for a page in order to receive the data and broadcasting the MIB. In other aspects, methods and apparatus for receiving a page comprise entering an idle state while camped on a cell. The methods and apparatus further comprise waking up from the idle state to monitor a slot of a MIB for a paging indication. Moreover, the methods and apparatus comprise recognizing the paging indication in the monitored slot of the MIB, determining a paging window based on correlation information in a SIB and waking up to listen for a page during the paging window.

Abstract translation: 用于寻呼的方法和装置包括接收去往UE的数据。 所述方法和装置还包括相对于较长的全球用户设备标识确定UE的短标识，并且基于短标识识别MIB传输。 此外，所述方法和装置包括激活MIB传输的时隙内的比特，以指示用户设备收听寻呼以便接收数据并广播该MIB。 在其他方面，用于接收页面的方法和装置包括在驻留在小区上时进入空闲状态。 所述方法和装置还包括从空闲状态唤醒以监视用于寻呼指示的MIB的时隙。 此外，所述方法和装置包括识别MIB的监视时隙中的寻呼指示，基于SIB中的相关信息确定寻呼窗口，并且在寻呼窗口期间唤醒以监听寻呼。

公开(公告)号：US20140307675A1

公开(公告)日：2014-10-16

申请号：US14313838

申请日：2014-06-24

Applicant: QUALCOMM Incorporated

Inventor： Hao Xu ,  Durga Prasad Malladi ,  Rachel Wang

IPC: H04L5/00

CPC classification number: H04L5/0051 ,  H04L5/0007 ,  H04L5/0016 ,  H04L5/0039 ,  H04L5/0053 ,  H04L5/0055 ,  H04L27/2613 ,  H04W52/16 ,  H04W52/241 ,  H04W52/325 ,  H04W52/48

Abstract: Techniques for transmitting data and pilot for control information are described. In one aspect, a user equipment (UE) may spread a reference signal sequence with a first orthogonal sequence to obtain multiple pilot sequences. The UE may then send the multiple pilot sequences on multiple subcarriers in multiple symbol periods, one pilot sequence in each symbol period. The UE may modulate the reference signal sequence with control information (e.g., ACK information) to obtain a modulated sequence. The UE may spread the modulated sequence with a second orthogonal sequence to obtain multiple data sequences. The UE may then send the multiple data sequences on the multiple subcarriers in multiple symbol periods for data. In another aspect, the UE may send multiple pilot sequences on multiple subcarriers in multiple symbol periods separated by at least one symbol period, one pilot sequence in each symbol period.

Abstract translation: 描述用于发送数据的技术和用于控制信息的导频。 一方面，用户设备（UE）可以扩展具有第一正交序列的参考信号序列以获得多个导频序列。 然后，UE可以在多个符号周期中的多个子载波上发送多个导频序列，每个符号周期中有一个导频序列。 UE可以用控制信息（例如，ACK信息）来调制参考信号序列以获得调制序列。 UE可以用第二正交序列扩展调制序列以获得多个数据序列。 然后，UE可以在用于数据的多个符号周期中的多个子载波上发送多个数据序列。 在另一方面，UE可以在多个符号周期中的多个子载波上发送多个导频序列，该符号周期由每个符号周期中的至少一个符号周期，一个导频序列隔开。

公开(公告)号：US20140126454A1

公开(公告)日：2014-05-08

申请号：US13787161

申请日：2013-03-06

Applicant: QUALCOMM INCORPORATED

Inventor： Xiaoxia Zhang ,  Durga Prasad Malladi ,  Jun Wang

IPC: H04W4/06

CPC classification number: H04W4/06

Abstract: A method, an apparatus, and a computer program product for wireless communication at a node are provided. The apparatus receives a multicast-broadcast single frequency network (MBSFN) signal transmitted from a base station, decodes the received MBSFN signal, and retrieves at least one source symbol from the decoded MBSFN signal when the node is capable of retrieving a source symbol. The apparatus also generates at least one redundancy version of the MBSFN signal based on the retrieved at least one source symbol and transmits the at least one redundancy version of the MBSFN signal via MBSFN. Generating a redundancy version of the MBSFN signal includes applying forward error correction (FEC) on the retrieved at least one source symbol to generate at least one repair symbol. Thus, a redundancy version of the MBSFN signal includes the at least one repair symbol and a subset of the at least one source symbol.

Abstract translation: 提供了一种用于节点处的无线通信的方法，装置和计算机程序产品。 该装置接收从基站发送的组播广播单频网络（MBSFN）信号，对接收到的MBSFN信号进行解码，并且当节点能够检索到源符号时，从解码的MBSFN信号中检索至少一个源符号。 该装置还基于检索到的至少一个源符号生成MBSFN信号的至少一个冗余版本，并通过MBSFN发送MBSFN信号的至少一个冗余版本。 生成MBSFN信号的冗余版本包括在所检索的至少一个源符号上应用前向纠错（FEC）以生成至少一个修复符号。 因此，MBSFN信号的冗余版本包括至少一个修复符号和至少一个源符号的子集。