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1. 发明申请

WO2009102906A1 APPARATUS AND METHOD FOR SCHEDULING OVER MULTIPLE HOPS 审中-公开
标题翻译：用于调度多个HOPS的装置和方法
公开(公告)号：WO2009102906A1
公开(公告)日：2009-08-20
申请号：PCT/US2009/033978
申请日：2009-02-12
申请人： QUALCOMM Incorporated , HORN, Gavin B. , AGRAWAL, Avneesh , SAMPATH, Ashwin , GOROKHOV, Alexei Y. , BHUSHAN, Naga
发明人： HORN, Gavin B. , AGRAWAL, Avneesh , SAMPATH, Ashwin , GOROKHOV, Alexei Y. , BHUSHAN, Naga
IPC分类号： H04W72/02 , H04W84/18 , H04W40/22
CPC分类号： H04W72/1263 , H04W72/00 , H04W72/04 , H04W72/0486 , H04W84/047 , H04W84/18 , H04W88/04
摘要： Systems and methodologies are described that facilitate scheduling over multiple hops in a wireless communication network. Radio resources can be partitioned into sets of sub-frames that can be allocated statically and/or dynamically. Statically allocated radio resources can be reassigned over time based on the loading on each hop and/or throughput imbalance. In addition, dynamic assignment of sub-frames to each hop can be based on traffic or channel conditions. Moreover, the radio resources can be dynamically allocated in a distributed scheme, wherein a base station controls the scheduling of resources, or a centralized scheme, wherein a relay station controls the scheduling of resources. Furthermore the allocation of radio resources can be transparent or explicit. In the transparent case, the access terminal listens directly to the base station, and the relay station does not transmit control information, such as DL or UL assignments. Conversely, when the allocation of resources is explicit the relay station does transmit control information.
摘要翻译：描述了有助于在无线通信网络中的多跳上进行调度的系统和方法。无线电资源可以被划分成静态和/或动态分配的子帧集合。基于每跳和/或吞吐量不平衡的负载，可以随时间重新分配静态分配的无线电资源。此外，每个跳跃的子帧的动态分配可以基于业务或信道条件。此外，无线电资源可以以分布式方案动态分配，其中基站控制资源的调度或集中式方案，其中中继站控制资源的调度。此外，无线电资源的分配可以是透明或明确的。在透明情况下，接入终端直接监听基站，中继站不发送DL或UL分配等控制信息。相反，当资源分配明确时，中继站确实发送控制信息。

2. 发明申请

WO2009099811A1 INTERFERENCE MANAGEMENT BASED ON ENHANCED PILOT MEASUREMENT REPORTS 审中-公开
标题翻译：基于增强型导航测量报告的干扰管理
公开(公告)号：WO2009099811A1
公开(公告)日：2009-08-13
申请号：PCT/US2009/032161
申请日：2009-01-27
申请人： QUALCOMM Incorporated , AGRAWAL, Avneesh , KHANDEKAR, Aamod D. , BHUSHAN, Naga , GOROKHOV, Alexei Y. , PALANKI, Ravi
发明人： AGRAWAL, Avneesh , KHANDEKAR, Aamod D. , BHUSHAN, Naga , GOROKHOV, Alexei Y. , PALANKI, Ravi
IPC分类号： H04W72/08
CPC分类号： H04W72/082 , H04W24/10
摘要： Techniques for managing interference in a wireless network are described. A base station may receive enhanced pilot measurement reports from user equipments (UEs) and may make an interference management decision based on the received reports. The base station may select a serving base station for a UE based on an enhanced pilot measurement report received from the UE. The base station may determine resources with a low target interference level at a neighbor base station and may avoid scheduling a UE for uplink transmission on the resources. The base station may also determine whether to reserve resources for a neighbor base station based on data performance of the neighbor base station, whether the neighbor base station observes high interference from UEs served by the base station, or whether UEs served by the neighbor base station observe high interference from the base station, which may be determined based on the enhanced pilot measurement reports.
摘要翻译：描述了用于管理无线网络中的干扰的技术。基站可以从用户设备（UE）接收增强的导频测量报告，并且可以基于所接收的报告进行干扰管理决定。基站可以基于从UE接收的增强型导频测量报告来选择用于UE的服务基站。基站可以在相邻基站处确定具有低目标干扰电平的资源，并且可以避免在资源上调度UE用于上行链路传输。基站还可以基于邻近基站的数据性能来确定是否为相邻基站预留资源，邻近基站是否观察到来自基站所服务的UE的高干扰，还是邻居基站服务的UE 观察来自基站的高干扰，其可以基于增强的导频测量报告来确定。

3. 发明申请

WO2009158545A2 BROADCAST-MULTICAST TRANSMISSION WITH RATE ADAPTION 审中-公开
标题翻译：具有速率自适应的广播多播传输
公开(公告)号：WO2009158545A2
公开(公告)日：2009-12-30
申请号：PCT/US2009/048724
申请日：2009-06-25
申请人： QUALCOMM Incorporated , AGRAWAL, Avneesh , GOROKHOV, Alexei Y. , GURELLI, Mehmet I. , BHUSHAN, Naga , AGASHE, Parag A.
发明人： AGRAWAL, Avneesh , GOROKHOV, Alexei Y. , GURELLI, Mehmet I. , BHUSHAN, Naga , AGASHE, Parag A.
IPC分类号： H04L1/00
CPC分类号： H04L1/1692 , H04L1/0026 , H04L1/1671 , H04L1/1861 , H04L1/1887 , H04L2001/0093
摘要： Techniques for supporting broadcast/multiple transmission to multiple terminals with feedback and rate adaptation are described. In an aspect, a combination of HARQ and at least one shared feedback channel may be used to support broadcast/multicast transmission. In one design, a base station may send at least one transmission of a packet to multiple terminals, one transmission at a time. The base station may receive feedback information (e.g., NAK) for the packet from the terminals on the shared feedback channel(s). The base station may determine whether to terminate the packet early and/or may select at least one transmission parameter for another packet based on the feedback information for the packet. In another aspect, a transport format for a broadcast/multicast transmission may be selected based on CQI information from terminals receiving the transmission. The terminals may send CQI information at a slow rate and/or only certain terminals may send CQI information.
摘要翻译：描述了用于支持具有反馈和速率适配的多个终端的广播/多传输的技术。在一方面，可以使用HARQ和至少一个共享反馈信道的组合来支持广播/多播传输。在一种设计中，基站可以向多个终端发送分组的至少一个传输，一次发送一个。基站可以从共享反馈信道上的终端接收针对分组的反馈信息（例如，NAK）。基站可以基于分组的反馈信息来确定是否提前终止分组和/或可以针对另一分组选择至少一个传输参数。在另一方面，可以基于接收到传输的终端的CQI信息来选择用于广播/多播传输的传输格式。终端可以以慢速率发送CQI信息和/或仅某些终端可以发送CQI信息。

4. 发明申请

WO2010141911A3 INTERFERENCE MITIGATION FOR DOWNLINK IN A WIRELESS COMMUNICATION SYSTEM 审中-公开
公开(公告)号：WO2010141911A3
公开(公告)日：2010-12-09
申请号：PCT/US2010/037533
申请日：2010-06-04
申请人： QUALCOMM Incorporated , GOROKHOV, Alexei Y. , AGRAWAL, Avneesh
发明人： GOROKHOV, Alexei Y. , AGRAWAL, Avneesh
IPC分类号： H04B1/707
摘要： Techniques for mitigating interference in a wireless communication system are described. In an aspect, pertinent transmission parameters for a served UE may be sent to at least one interfered UE to support interference mitigation. In one design, information for at least one transmission parameter for a data transmission sent by a first cell (110) to a first UE (120) may be transmitted to at least one UE (122) served by a second cell (112) to enable the at least one UE to perform interference mitigation for the data transmission sent by the first cell to the first UE. The information may be transmitted by either the first cell or the second cell. In another aspect, a cell may send transmission parameters for a UE via a pilot. In yet another aspect, scrambling may be performed by a cell at symbol level to enable an interfered UE to distinguish between modulation symbols of desired and interfering transmissions.

5. 发明申请

WO2010048440A1 METHOD AND APPARATUS FOR ANCHOR CELL DESIGNATION IN NETWORK MIMO 审中-公开
标题翻译：网络MIMO中锚定信元指定的方法和装置
公开(公告)号：WO2010048440A1
公开(公告)日：2010-04-29
申请号：PCT/US2009/061726
申请日：2009-10-22
申请人： QUALCOMM Incorporated , PALANKI, Ravi , GOROKHOV, Alexei Y. , BHUSHAN, Naga
发明人： PALANKI, Ravi , GOROKHOV, Alexei Y. , BHUSHAN, Naga
IPC分类号： H04W36/18 , H04B7/02
CPC分类号： H04W36/0055 , H04L1/0026 , H04L1/1607 , H04L5/0035 , H04W36/18
摘要： Systems and methods that designate a control attachment point(s) during transmission of data in a Coordinated Multipoint (CoMP) system. The control attachment point is represented by an anchor cell to address control signaling and represent a User Equipment's (UE) interaction with the wireless communication system from a perspective of control (e.g., supplying/sending grants to the UE, transmitting/receiving ACKS on the downlink/uplink to the UE, control information (CQI), and the like.) The cells can further engage in backhaul transfer of information therebetween, and dynamic switching/change of anchor point based on criteria such as control loading, channel quality, and the like can further be implemented.
摘要翻译：在协调多点（CoMP）系统中传输数据期间指定控制连接点的系统和方法。控制连接点由锚小区表示以解决控制信令，并且从控制的角度（例如，向UE提供/发送授权，在...上发送/接收ACKS）来表示与无线通信系统的用户设备（UE）交互下行链路/上行链路，控制信息（CQI）等）。小区可以进一步参与其间的信息的回程传输，以及锚点的动态切换/改变，其基于诸如控制加载，信道质量和可以进一步实现。

6. 发明申请

WO2009099810A2 METHOD AND APPARATUS FOR MITIGATING PILOT POLLUTION IN A WIRELESS NETWORK 审中-公开
标题翻译：在无线网络中减轻试点污染的方法和装置
公开(公告)号：WO2009099810A2
公开(公告)日：2009-08-13
申请号：PCT/US2009/032159
申请日：2009-01-27
申请人： QUALCOMM Incorporated , JI, Tingfang , AGRAWAL, Avneesh , GOROKHOV, Alexei Y.
发明人： JI, Tingfang , AGRAWAL, Avneesh , GOROKHOV, Alexei Y.
IPC分类号： H04W40/34
CPC分类号： H04L5/0048 , H04L1/0004 , H04L1/001 , H04L1/0026 , H04L1/1812 , H04L5/0044 , H04L5/005 , H04L5/0053 , H04L5/0057 , H04L5/006 , H04L5/0062 , H04L25/0224 , H04W52/241 , H04W52/243 , H04W52/325 , H04W52/343
摘要： Techniques for mitigating pilot pollution in a wireless network are described. In an aspect, pilot pollution may be mitigated by reducing density and/or transmit power of common pilots whenever possible. A cell may send a common pilot at a first density and a first transmit power level during a first time period and may send the common pilot at a second density and a second transmit power level during a second time period. The second density may be lower than the first density and/or the second transmit power level may be lower than the first transmit power level. Lower density may be achieved by sending the common pilot less frequently, on fewer subcarriers, and/or from fewer antennas. The cell may determine whether to reduce the density and/or transmit power of the common pilot based on network loading, SINRs of terminals, etc. In another aspect, pilot pollution may be mitigated by performing pilot cancellation at a terminal.
摘要翻译：描述了减轻无线网络中导频污染的技术。在一方面，可能通过尽可能减少公共飞行员的密度和/或发射功率来减轻飞行员污染。小区可以在第一时间段期间以第一密度和第一发射功率电平发送公共导频，并且可以在第二时间段期间以第二密度和第二发射功率电平发送公共导频。第二密度可以低于第一密度，和/或第二发射功率电平可能低于第一发射功率电平。较低的密度可以通过在较少的子载波上和/或从更少的天线较少频率地发送公共导频来实现。小区可以基于网络负载，终端的SINR等来确定是否降低公共导频的密度和/或发射功率。另一方面，可以通过在终端执行导频消除来减轻导频污染。

7. 发明申请

WO2010025286A2 DISTRIBUTED DOWNLINK COORDINATED MULTI-POINT (CoMP) FRAMEWORK 审中-公开
标题翻译：分布式下行协调多点（CoMP）框架
公开(公告)号：WO2010025286A2
公开(公告)日：2010-03-04
申请号：PCT/US2009/055238
申请日：2009-08-27
申请人： QUALCOMM Incorporated , GOROKHOV, Alexei Y. , MALLIK, Siddhartha , BHUSHAN, Naga , BARBIERI, Alan
发明人： GOROKHOV, Alexei Y. , MALLIK, Siddhartha , BHUSHAN, Naga , BARBIERI, Alan
IPC分类号： H04B1/38
CPC分类号： H04W24/02 , H04B7/024 , H04B17/382
摘要： Systems and methodologies are described that facilitate dynamically forming clusters in a wireless communication environment. A set of non-overlapping clusters can be formed dynamically over time and in a distributed manner. Each of the clusters can include a set of base stations and a set of mobile devices. The clusters can be yielded based upon a set of local strategies selected by base stations across the network converged upon through message passing. For example, each base station can select a particular local strategy as a function of time based upon network-wide utility estimates respectively conditioned upon implementation of the particular local strategy and disparate possible local strategies that can cover the corresponding base station. Moreover, operation within each of the clusters can be coordinated.
摘要翻译：描述了促进在无线通信环境中动态形成集群的系统和方法。一组不重叠的集群可以随着时间和分布式动态地形成。每个群集可以包括一组基站和一组移动设备。可以基于通过基站通过消息传递收敛的网络选择的一组局部策略来产生群集。例如，基于分别基于特定局部策略的实施和可覆盖相应基站的不同的可能的局部策略的网络范围的效用估计，每个基站可以选择作为时间的函数的特定局部策略。此外，可以协调每个群集内的操作。

8. 发明申请

WO2010048437A3 METHOD AND APPARATUS FOR INTERFERENCE REPORTING IN A N-MIMO COMMUNICATION SYSTEM 审中-公开
公开(公告)号：WO2010048437A3
公开(公告)日：2010-04-29
申请号：PCT/US2009/061723
申请日：2009-10-22
申请人： QUALCOMM INCORPORATED , PALANKI, Ravi , GOROKHOV, Alexei Y. , BHUSHAN, Naga
发明人： PALANKI, Ravi , GOROKHOV, Alexei Y. , BHUSHAN, Naga
IPC分类号： H04L1/00 , H04B7/06 , H04W24/10 , H04W72/04 , H04L5/00
摘要： 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.

9. 发明申请

WO2010080231A1 METHOD AND APPARATUS FOR CHANNEL ESTIMATION USING MULTIPLE DESCRIPTION CODES 审中-公开
标题翻译：使用多种描述码的信道估计的方法和装置
公开(公告)号：WO2010080231A1
公开(公告)日：2010-07-15
申请号：PCT/US2009/066031
申请日：2009-11-29
申请人： QUALCOMM Incorporated , MALLIK, Siddhartha , GOROKHOV, Alexei Y.
发明人： MALLIK, Siddhartha , GOROKHOV, Alexei Y.
IPC分类号： H04L25/02 , H04B7/02 , H04L1/00
CPC分类号： H04L1/0035 , H04B7/0417 , H04B7/0626 , H04B7/0639 , H04L25/0242
摘要： Techniques for using multiple description codes (MDC) for channel feedback to improve channel estimation accuracy are described. A receiver may obtain an initial/ measured channel vector for a communication channel. The receiver may select a codebook in a set of codebooks for quantizing the initial channel vector. Each codebook may include a different set of channel vectors/codewords. Different codebooks may be selected in different reporting intervals. The receiver may select a channel vector in the selected codebook, and the selected channel vector may have (i) a largest correlation with a normalized channel vector or (ii) a smallest distance to the initial channel vector. The receiver may send the selected channel vector and possibly the selected codebook to a transmitter. The transmitter may receive the selected/ reported channel vectors from the receiver in different reporting intervals and may derive a final channel vector for the communication channel based on the reported channel vectors.
摘要翻译：描述了使用多个描述码（MDC）进行信道反馈以提高信道估计精度的技术。接收机可以获得通信信道的初始/测量信道向量。接收机可以在一组码本中选择用于量化初始信道向量的码本。每个码本可以包括不同的信道向量/码字集合。可以在不同的报告间隔中选择不同的码本。接收机可以选择所选码本中的信道向量，并且所选择的信道向量可以具有（i）与归一化信道向量的最大相关性或（ii）到初始信道向量的最小距离。接收机可以将所选择的信道向量和可能的所选码本发送到发射机。发射机可以在不同的报告间隔中从接收机接收所选/报告的信道向量，并且可以基于报告的信道向量导出通信信道的最终信道向量。

10. 发明申请

WO2010040098A3 METHOD AND APPARATUS FOR COOPERATION STRATEGY SELECTION IN A WIRELESS COMMUNICATION SYSTEM 审中-公开
公开(公告)号：WO2010040098A3
公开(公告)日：2010-04-08
申请号：PCT/US2009/059439
申请日：2009-10-02
申请人： QUALCOMM Incorporated , GOROKHOV, Alexei Y. , MALLIK, Siddhartha , BARBIERI, Alan , HOU, Jilei
发明人： GOROKHOV, Alexei Y. , MALLIK, Siddhartha , BARBIERI, Alan , HOU, Jilei
IPC分类号： H04L5/00
摘要： Systems and methodologies are described that facilitate cooperation strategy selection for a network multiple-in-multiple-out (N-MIMO) communication system. As described herein, one or more nodes in a communication system capable of N-MIMO communication can calculate marginal utilities, projected per-user rates, and/or other parameters corresponding to respective associated users. Based on these calculations, respective network nodes can perform user scheduling and selection, cell scheduling and selection, selection of a cooperation strategy (e.g., coordinated silencing, joint transmission, coordinated beamforming, etc.), and/or other operations to provide cooperative communication for respective users. As further described herein, projected rate calculation for a given user can be adjusted based on processing or channel implementation loss associated with the user, interference nulling capability of the user, or other factors. As additionally described herein, these and/or other parameters can be fed back by respective users to a serving network node and/or mandated via system performance requirements.

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