公开(公告)号：WO2011022415A1

公开(公告)日：2011-02-24

申请号：PCT/US2010/045779

申请日：2010-08-17

Applicant: QUALCOMM Incorporated ,  GEIRHOFER, Stefan ,  FARAJIDANA, Amir ,  JI, Tingfang ,  GOROKHOV, Alexei Yurievitch ,  STAMOULIS, Anastasios

Inventor： GEIRHOFER, Stefan ,  FARAJIDANA, Amir ,  JI, Tingfang ,  GOROKHOV, Alexei Yurievitch ,  STAMOULIS, Anastasios

IPC: H04W72/04 ,  H04L1/00

CPC classification number: H04W72/048 ,  H04W72/0413 ,  H04W72/085

Abstract: Techniques for scheduling UEs are described. In one design, a scheduler (e.g., for a cell) may receive channel direction information (CDI) and channel strength information (CSI) from a plurality of UEs. In one design, the CDI from each UE may include at least one eigenvector, and the CSI from each UE may include at least one singular value corresponding to the at least one eigenvector. The scheduler may schedule at least one UE among the plurality of UEs for data transmission based on the CDI and CSI from the plurality of UEs. The scheduler may select the at least one UE based on a metric related to signal-to-leakage ratio (SLR), or spectral efficiency, etc. In one design, the scheduler may evaluate the performance of different sets of UEs to determine whether to schedule one UE for single-user MIMO or multiple UEs for multi-user MIMO.

Abstract translation: 描述用于调度UE的技术。 在一种设计中，调度器（例如，用于小区）可以从多个UE接收信道方向信息（CDI）和信道强度信息（CSI）。 在一种设计中，来自每个UE的CDI可以包括至少一个特征向量，并且来自每个UE的CSI可以包括对应于该至少一个特征向量的至少一个奇异值。 调度器可以基于来自多个UE的CDI和CSI来调度多个UE中的至少一个UE进行数据传输。 调度器可以基于与信号泄漏比（SLR）或频谱效率等相关的度量来选择至少一个UE。在一个设计中，调度器可以评估不同组的UE的性能，以确定是否 将一个UE调度为单用户MIMO或多个UE用于多用户MIMO。

公开(公告)号：WO2009111752A1

公开(公告)日：2009-09-11

申请号：PCT/US2009/036415

申请日：2009-03-06

Applicant: QUALCOMM INCORPORATED ,  GUPTA, Rajarshi ,  STAMOULIS, Anastasios

Inventor： GUPTA, Rajarshi ,  STAMOULIS, Anastasios

IPC: H04W72/08 ,  H04L1/00

CPC classification number: H04W72/0406 ,  H04W72/082

Abstract: An authorization scheme limits the number of nodes that send out resource utilization messages. Here, a first node may determine whether a second node is allowed to transmit a resource utilization message, and send a message to the second node indicative of this determination. The second node may then determine whether to send out a resource utilization message based on the message from the first node and the quality of service associated with receive traffic at the second node. In some aspects, a node that is allowed to transmit a RUM may be identified based on whether the node is expected to be scheduled to use a given resource.

Abstract translation: 授权方案限制了发送资源利用率消息的节点数量。 这里，第一节点可以确定是否允许第二节点发送资源利用消息，并且向第二节点发送指示该确定的消息。 然后，第二节点可以基于来自第一节点的消息和与第二节点处的接收业务相关联的服务质量来确定是否发送资源利用消息。 在一些方面，可以基于该节点是否被调度为使用给定资源来识别被允许发送RUM的节点。

公开(公告)号：WO2009103019A1

公开(公告)日：2009-08-20

申请号：PCT/US2009/034144

申请日：2009-02-13

Applicant: QUALCOMM Incorporated ,  STAMOULIS, Anastasios ,  SAMPATH, Ashwin

Inventor： STAMOULIS, Anastasios ,  SAMPATH, Ashwin

IPC: H04W72/12

CPC classification number: H04W72/1278 ,  H04B7/2606 ,  H04L47/24 ,  H04W28/02 ,  H04W72/12 ,  H04W72/1205 ,  H04W72/1231 ,  H04W84/047

Abstract: Various traffic management techniques may be employed in a multi-hop wireless communication system. For example, a decision to transmit data to another node may be based on whether that node is able to effectively transmit its data. A decision to transmit an interference management message may be based on the amount of data a parent node may transmit. A decision to transmit an interference management message may be based on how effectively data is being transmitted. A weight may be assigned for an interference management message based on a traffic scheduling policy.

Abstract translation: 在多跳无线通信系统中可以采用各种业务管理技术。 例如，将数据发送到另一个节点的决定可以基于该节点是否能够有效地发送其数据。 发送干扰管理消息的决定可以基于父节点可以发送的数据量。 发送干扰管理消息的决定可以基于如何有效地传输数据。 可以基于流量调度策略为干扰管理消息分配权重。

公开(公告)号：WO2009103013A1

公开(公告)日：2009-08-20

申请号：PCT/US2009/034138

申请日：2009-02-13

Applicant: QUALCOMM Incorporated ,  STAMOULIS, Anastasios ,  SAMPATH, Ashwin

Inventor： STAMOULIS, Anastasios ,  SAMPATH, Ashwin

IPC: H04W28/12 ,  H04W72/04

CPC classification number: H04W28/12 ,  H04W84/18

Abstract: Various traffic management techniques may be employed in a multi-hop wireless communication system. For example, a decision to transmit data to another node may be based on whether that node is able to effectively transmit its data. A decision to transmit an interference management message may be based on the amount of data a parent node may transmit. A decision to transmit an interference management message may be based on how effectively data is being transmitted. A weight may be assigned for an interference management message based on a traffic scheduling policy.

Abstract translation: 在多跳无线通信系统中可以采用各种业务管理技术。 例如，将数据发送到另一个节点的决定可以基于该节点是否能够有效地发送其数据。 发送干扰管理消息的决定可以基于父节点可以发送的数据量。 发送干扰管理消息的决定可以基于如何有效地传输数据。 可以基于流量调度策略为干扰管理消息分配权重。

公开(公告)号：WO2006042326A1

公开(公告)日：2006-04-20

申请号：PCT/US2005/037077

申请日：2005-10-12

Applicant: QUALCOMM INCORPORATED ,  STAMOULIS, Anastasios ,  DUNG, Doan ,  MALLADI, Durga

Inventor： STAMOULIS, Anastasios ,  DUNG, Doan ,  MALLADI, Durga

IPC: H04L25/03

CPC classification number: H04L25/03318 ,  H04L25/0226 ,  H04L25/03171 ,  H04L25/03292

Abstract: Techniques for performing data detection and decoding in a manner to account for guard subbands are described. A receiver obtains received pilot symbols for pilot subbands and received data symbols for data subbands. Channel estimates are derived based on the received pilot symbols with zeroed-out pilot subbands filled with zeros. Data detection is performed on the received data symbols with the channel estimates to obtain data symbol estimates. Estimates of noise and estimation errors due to the zeroed-out pilot subbands are derived. LLRs are then computed based on the data symbol estimates, the channel estimates, and the estimates of the noise and estimation errors. The LLRs are deinterleaved and decoded to obtain decoded data.

Abstract translation: 描述了以考虑保护子带的方式执行数据检测和解码的技术。 接收机获得用于导频子带的接收导频符号和用于数据子带的接收数据符号。 基于接收到的导频符号导出信道估计，其中零导频子带填充为零。 对具有信道估计的接收数据符号执行数据检测以获得数据符号估计。 导出由于零零导频子带导致的噪声和估计误差的估计。 然后基于数据符号估计，信道估计以及噪声和估计误差的估计来计算LLR。 LLR被解交织并解码以获得解码数据。

公开(公告)号：WO2005122425A2

公开(公告)日：2005-12-22

申请号：PCT/US2005/019544

申请日：2005-06-03

Applicant: QUALCOMM Incorporated ,  AGRAWAL, Avneesh ,  MALLADI, Durga P. ,  STAMOULIS, Anastasios ,  MANTRAVADI, Ashok ,  MURALI, Ramaswamy

Inventor： AGRAWAL, Avneesh ,  MALLADI, Durga P. ,  STAMOULIS, Anastasios ,  MANTRAVADI, Ashok ,  MURALI, Ramaswamy

IPC: H04B7/00

CPC classification number: H04W88/10 ,  H04B7/2656 ,  H04L1/0083 ,  H04L5/14 ,  H04L27/2602 ,  H04W92/10 ,  Y02D70/1222 ,  Y02D70/1242 ,  Y02D70/1244 ,  Y02D70/21 ,  Y02D70/449

Abstract: Frame structures and transmission techniques for a wireless communication system are described. In one frame structure, a super-frame includes multiple outer-frames, and each outer-frame includes multiple frames, and each frame includes multiple time slots. The time slots in each super-frame are allocated for downlink and uplink and for different radio technologies (e.g., W-CDMA and OFDM) based on loading. Each physical channel is allocated at least one time slot in at least one frame of each outer-frame in the super-frame. An OFDM waveform is generated for each downlink OFDM slot and multiplexed onto the slot. A W-CDMA waveform is generated for each downlink W-CDMA slot and multiplexed onto the slot. A modulated signal is generated for the multiplexed W-CDMA and OFDM waveforms and transmitted on the downlink. Each physical channel is transmitted in bursts. The slot allocation and coding and modulation for each physical channel can change for each super-frame.

Abstract translation: 描述了用于无线通信系统的帧结构和传输技术。 在一帧结构中，超帧包括多个外帧，并且每个外帧包括多个帧，并且每个帧包括多个时隙。 每个超帧中的时隙基于加载被分配用于下行链路和上行链路以及不同的无线电技术（例如，W-CDMA和OFDM）。 每个物理信道在超帧中的每个外帧的至少一个帧中分配至少一个时隙。 为每个下行OFDM时隙生成OFDM波形并复用到时隙上。 为每个下行链路W-CDMA时隙产生W-CDMA波形并复用到该时隙上。 为多路复用的W-CDMA和OFDM波形生成调制信号并在下行链路上发送。 每个物理信道以突发方式传输。 每个物理信道的时隙分配和编码和调制可以针对每个超帧而改变。

公开(公告)号：WO2010008615A1

公开(公告)日：2010-01-21

申请号：PCT/US2009/033260

申请日：2009-02-05

Applicant: QUALCOMM Incorporated ,  CHAKRABARTI, Arnab ,  STAMOULIS, Anastasios ,  LIN, Dexu ,  YAZDI, Kambiz Azarian ,  JI, Tingfang

Inventor： CHAKRABARTI, Arnab ,  STAMOULIS, Anastasios ,  LIN, Dexu ,  YAZDI, Kambiz Azarian ,  JI, Tingfang

IPC: H04W76/02 ,  H04W88/04 ,  H04B7/04

CPC classification number: H04B7/0417 ,  H04B7/063 ,  H04W76/14 ,  H04W88/04

Abstract: Providing for distributed processing for a set of wireless communication devices to implement distributed, multi-antenna communication via one or more of the devices is described herein. By way of example, a relay link can be established between one or more wireless transceivers. The link can be utilized to distribute an indexing parameter to a remote transceiver. The indexing parameter can be employed to identify a set of index-specific instructions configured for a particular wireless node of a network. Based on the instructions and indexing parameter, such transceiver can locally compute and transmit, or receive and decode, a stream of traffic data for the multi-antenna communication. Thus, for instance, a P-P link between UTs can be employed to implement increased throughput and reduced interference benefits of multi-antenna communication for unplanned configurations of mobile devices.

Abstract translation: 本文描述了为一组无线通信设备提供分布式处理以通过一个或多个设备实现分布式多天线通信。 作为示例，可以在一个或多个无线收发器之间建立中继链路。 链路可用于将索引参数分发到远程收发器。 可以采用索引参数来识别为网络的特定无线节点配置的一组索引特定指令。 基于指令和索引参数，这种收发器可以本地计算和发送或接收和解码用于多天线通信的业务数据流。 因此，例如，可以采用UT之间的P-P链路来实现针对移动设备的计划外配置的多天线通信的增加的吞吐量和降低的干扰优点。

公开(公告)号：WO2009134248A1

公开(公告)日：2009-11-05

申请号：PCT/US2008/061910

申请日：2008-04-29

Applicant: QUALCOMM INCORPORATED ,  STAMOULIS, Anastasios ,  GUPTA, Rajarshi

Inventor： STAMOULIS, Anastasios ,  GUPTA, Rajarshi

IPC: H04W72/12

CPC classification number: H04W72/1226 ,  H04L1/0018 ,  H04L1/0026 ,  H04W52/367 ,  H04W72/1278

Abstract: Systems and methods are described that facilitate evaluating conditions of nodes (e.g., access points, access terminals, etc.) in a wireless communication environment having a plurality of carriers to determine a level of disadvantage for a given node relative to other nodes. The node may transmit a resource utilization message (RUM) that represents the level of disadvantage for the node and request other interference nodes to back off on one or more carriers. This would allow frequency reuse if nodes vary the power of transmission for particular carriers, in conjunction with neighboring nodes.

Abstract translation: 描述了有助于在具有多个载波的无线通信环境中评估节点（例如，接入点，接入终端等）的条件以确定给定节点相对于其他节点的不利程度的系统和方法。 节点可以发送表示节点的不利等级的资源利用消息（RUM），并请求其他干扰节点在一个或多个载波上退避。 如果节点相对于相邻节点改变特定载波的传输功率，这将允许频率重用。

公开(公告)号：WO2009120203A1

公开(公告)日：2009-10-01

申请号：PCT/US2008/058520

申请日：2008-03-27

Applicant: QUALCOMM INCORPORATED ,  STAMOULIS, Anastasios ,  SAMPATH, Ashwin ,  ABRAHAM, Santosh

Inventor： STAMOULIS, Anastasios ,  SAMPATH, Ashwin ,  ABRAHAM, Santosh

IPC: H04L12/56 ,  H04W28/12

CPC classification number: H04W52/22 ,  H04L47/10 ,  H04L47/26

Abstract: An adaptable decision parameter is used to determine whether to react to resource utilization messages. The decision parameter may comprise a decision threshold that is adapted based on received resource utilization messages. The decision parameter may comprise a probability that is used to determine whether to react to a received resource utilization message. Such a probability may be based on, for example, one or more channel conditions, the number of interferers seen by a node, the number of received resource utilization messages, or some other form of resource utilization message-related information.

Abstract translation: 使用适应性决定参数来确定是否对资源利用消息做出反应。 决策参数可以包括基于接收到的资源利用消息来适应的决策阈值。 决策参数可以包括用于确定是否对接收到的资源利用消息做出反应的概率。 这样的概率可以基于例如一个或多个信道条件，节点看到的干扰源的数量，接收到的资源利用消息的数量，或某些其他形式的资源利用消息相关信息。

公开(公告)号：WO2009103005A1

公开(公告)日：2009-08-20

申请号：PCT/US2009/034129

申请日：2009-02-13

Applicant: QUALCOMM Incorporated ,  STAMOULIS, Anastasios ,  SAMPATH, Ashwin

Inventor： STAMOULIS, Anastasios ,  SAMPATH, Ashwin

IPC: H04L12/56

CPC classification number: H04W72/0406 ,  H04L47/10 ,  H04L47/14 ,  H04L47/263 ,  H04L47/30 ,  H04W72/04 ,  H04W72/082 ,  H04W72/1252 ,  H04W72/1278 ,  H04W84/20

Abstract: Various traffic management techniques may be employed in a multi-hop wireless communication system. For example, a decision to transmit data to another node may be based on whether that node is able to effectively transmit its data. A decision to transmit an interference management message may be based on the amount of data a parent node may transmit. A decision to transmit an interference management message may be based on how effectively data is being transmitted. A weight may be assigned for an interference management message based on a traffic scheduling policy.

Abstract translation: 在多跳无线通信系统中可以采用各种业务管理技术。 例如，将数据发送到另一个节点的决定可以基于该节点是否能够有效地发送其数据。 发送干扰管理消息的决定可以基于父节点可以发送的数据量。 发送干扰管理消息的决定可以基于如何有效地传输数据。 可以基于流量调度策略为干扰管理消息分配权重。