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1. 发明申请

WO2008112625A1 ENCODING AND DECODING OF LOW DENSITY PARITY CHECK (LDPC ) CODES 审中-公开
标题翻译：编码和解码低密度奇偶校验（LDPC）编码
公开(公告)号：WO2008112625A1
公开(公告)日：2008-09-18
申请号：PCT/US2008/056390
申请日：2008-03-10
申请人： QUALCOMM INCORPORATED , RICHARDSON, Thomas , BHUSHAN, Naga , KHANDEKAR, Aamod
发明人： RICHARDSON, Thomas , BHUSHAN, Naga , KHANDEKAR, Aamod
IPC分类号： H03M13/11
CPC分类号： H03M13/116 , H03M13/1185 , H03M13/1188 , H03M13/6561
摘要： A novel apparatus and method for encoding data using a low density parity check (LDPC) code capable of representation by a bipartite graph are provided. To encode the data, an accumulate chain of a plurality of low degree variable nodes is generated. The accumulate chain is closed to form a loop twice, once using a low degree variable nodes such as a degree two node and once using a higher degree variable node such as a degree three node which is higher than the low degree variable node, where the higher degree variable node comprises a non-loop-closing edge. In one embodiment, the plurality of low degree variable nodes may have the same permutation on each edge, where permutations are used for lifting a small size base graph into the graph of the LDPC code.
摘要翻译：提供了一种使用能够通过二分图表示的低密度奇偶校验（LDPC）码对数据进行编码的新型装置和方法。为了对数据进行编码，生成多个低度可变节点的累加链。累积链关闭以形成循环两次，一次使用诸如二度节点的低度可变节点，并且一旦使用比较低度变量节点高的三级节点的较高级变量节点，其中高度可变节点包括非环路闭合边缘。在一个实施例中，多个低度可变节点可以在每个边缘上具有相同的置换，其中使用排列将小尺寸基本图提升到LDPC码的图中。

2. 发明申请

WO2008092040A2 LDPC ENCODING AND DECODING OF PACKETS OF VARIABLE SIZES 审中-公开
标题翻译：可变尺寸分组的LDPC编码和解码
公开(公告)号：WO2008092040A2
公开(公告)日：2008-07-31
申请号：PCT/US2008/051961
申请日：2008-01-24
申请人： QUALCOMM INCORPORATED , KHANDEKAR,, Aamod , RICHARDSON, Thomas
发明人： KHANDEKAR,, Aamod , RICHARDSON, Thomas
IPC分类号： H03M13/11
CPC分类号： H03M13/116 , H03M13/1137 , H03M13/1185 , H03M13/1188 , H03M13/616 , H03M13/6393 , H03M13/6516 , H04L1/0007 , H04L1/0009 , H04L1/1812
摘要： Techniques to support low density parity check (LDPC) encoding and decoding are described. In an aspect, LDPC encoding and decoding of packets of varying sizes may be supported with a set of base parity check matrices of different dimensions and a set of lifting values of different powers of two. A base parity check matrix G of dimension m B Œn B may be used to encode a packet of k B =n B -m B information bits to obtain a codeword of n B code bits. This base parity check matrix may be "lifted" by a lifting value of L to obtain a lifted parity check matrix H of dimension L⋅m B ŒL⋅n B . The lifted parity check matrix may be used to encode a packet of up to L⋅k B information bits to obtain a codeword of L⋅n B code bits. A wide range of packet sizes may be supported with the set of base parity check matrices and the set of lifting values.
摘要翻译：描述了支持低密度奇偶校验（LDPC）编码和解码的技术。在一方面，可以用不同维度的一组基本奇偶校验矩阵和两个不同功率的提升值的集合来支持不同大小的分组的LDPC编码和解码。可以使用尺寸为m B的基本奇偶校验矩阵G来编码k B = N B B的分组， / SUBB信息比特，以获得n个比特码的码字。该基本奇偶校验矩阵可以通过提升值L“提升”，以获得尺寸为L·m B·B·H B B的提升奇偶校验矩阵H. 提升的奇偶校验矩阵可以用于编码高达L·k个B信息比特的分组，以获得L·n个B个码比特的码字。可以使用一组基本奇偶校验矩阵和提升值集来支持大范围的分组大小。

3. 发明申请

WO2008052202A1 CODING SCHEMES FOR WIRELESS COMMUNICATION TRANSMISSIONS 审中-公开
标题翻译：无线通信传输的编码方案
公开(公告)号：WO2008052202A1
公开(公告)日：2008-05-02
申请号：PCT/US2007/082747
申请日：2007-10-26
申请人： QUALCOMM INCORPORATED , RICHARDSON, Thomas , KHANDEKAR, Aamod
发明人： RICHARDSON, Thomas , KHANDEKAR, Aamod
IPC分类号： H04L1/00 , H04L1/18
CPC分类号： H04L1/0057 , H03M13/1137 , H03M13/116 , H03M13/1185 , H03M13/1194 , H03M13/6306 , H03M13/6362 , H04L1/0009 , H04L1/0068 , H04L1/1819
摘要： Systems and methodologies are described that facilitate transmitting low-density parity-check encoded communications in a wireless communications network and incrementing such codes in response to requests from receiving devices. The LDPC codes can have associated constraints allowing the codes to be error corrected upon receipt. The requests for incremented codes can be in cases of low transmission power or high interference, for example, where the original code can be too error-ridden to properly decode. In this case, additional nodes can be added to current and/or subsequent communications to facilitate adding a more complex constraint to the LDPC code. In this regard, the large codes can require less validly transmitted nodes to predict error-ridden values as the additional constraint renders less ambiguity in possible node value choices.
摘要翻译：描述了有助于在无线通信网络中传送低密度奇偶校验编码通信并响应于来自接收设备的请求递增这些代码的系统和方法。 LDPC码可以具有相关联的约束，允许在接收时对代码进行纠错。递增代码的请求可以是在低发送功率或高干扰的情况下，例如，其中原始代码可能太错误以便正确解码。在这种情况下，可以将附加节点添加到当前和/或后续通信，以便于向LDPC码添加更复杂的约束。在这方面，大代码可能需要较少的有效传输的节点来预测误差值，因为附加约束使可能的节点值选择中的歧义更少。

4. 发明申请

WO2012099997A1 METHODS AND APPARATUS FOR DISTRIBUTED LEARNING OF PARAMETERS OF A FINGERPRINT PREDICTION MAP MODEL 审中-公开
标题翻译：指纹预测地图模型参数分布学习的方法与装置
公开(公告)号：WO2012099997A1
公开(公告)日：2012-07-26
申请号：PCT/US2012/021772
申请日：2012-01-18
申请人： QUALCOMM INCORPORATED , RICHARDSON, Thomas , JOVICIC, Aleksandar , MEASSON, Cyril
发明人： RICHARDSON, Thomas , JOVICIC, Aleksandar , MEASSON, Cyril
IPC分类号： G01S5/02 , G01S5/00
CPC分类号： G01S5/0252 , G01S5/0018 , G01S5/021 , H04W4/029 , H04W4/80
摘要： In accordance with various embodiments, mobile wireless devices which use prediction maps, e.g., RF prediction maps, to determine their location also contribute to the updating and distribution of parameters relating to prediction map generation. After a device determines its location, it uses the signal measurements used in determining the device's location to determine updated parameters which can be used in generating signal prediction maps in the future. The generated parameters are then transmitted to another device for use in generating prediction maps and/or distribution to other devices. In this manner parameters corresponding to a particular location can be updated and distributed without the need for a survey team and/or dedicated equipment. The devices using the prediction map become the devices which also aid in the updating of the parameters used to facilitate generation of a prediction map at some future time. In some embodiments, statistical information corresponding to the updated parameters is also generated and communicated.
摘要翻译：根据各种实施例，使用预测图（例如RF预测图）来确定它们的位置的移动无线设备还有助于与预测图生成有关的参数的更新和分布。在设备确定其位置之后，它使用用于确定设备位置的信号测量来确定将来可用于生成信号预测图的更新参数。所产生的参数然后被发送到另一个设备，以用于生成预测图和/或分发给其他设备。以这种方式，可以更新和分发对应于特定位置的参数，而不需要调查团队和/或专用设备。使用预测图的装置成为也有助于更新用于在将来某个时间产生预测图的参数的装置。在一些实施例中，还生成并传达与更新的参数对应的统计信息。

5. 发明申请

WO2009059130A2 METHOD AND APPARATUS RELATED TO CONTROLLING TRAFFIC IN A WIRELESS COMMUNICATIONS SYSTEM USING SHARED AIR LINK TRAFFIC RESOURCES 审中-公开
标题翻译：使用共享的空中链路交通资源在无线通信系统中控制交通相关的方法和装置
公开(公告)号：WO2009059130A2
公开(公告)日：2009-05-07
申请号：PCT/US2008/081987
申请日：2008-10-31
申请人： QUALCOMM INCORPORATED , LI, Junyi , LAROIA, Rajiv , RICHARDSON, Thomas , WU, Xinzhou
发明人： LI, Junyi , LAROIA, Rajiv , RICHARDSON, Thomas , WU, Xinzhou
IPC分类号： H04W72/10 , H04W74/04
CPC分类号： H04W72/1242 , H04W72/1231 , H04W74/00
摘要： A peer to peer communications system implements scheduling of traffic intervals in a distributed manner utilizing connection priority and interference information. A peer to peer timing structure includes a user scheduling interval, with ordered transmission request and response intervals, and an associated traffic interval. The priority associated with a request of an early interval is higher than the priority of a request of a later interval. A first device, connected to a second device, makes a decision as to whether or not to yield the traffic interval as a function of estimated interference that it will impose on higher priority connection receivers if it transmits during the traffic interval. The second device makes a decision as to whether or not to transmit a positive transmission request response signal as a function of a generated received signal quality value, based on received requests for its own and for higher priority connections
摘要翻译：对等通信系统利用连接优先级和干扰信息，以分布式实现业务间隔调度。对等定时结构包括具有有序传输请求和响应间隔的用户调度间隔以及相关联的业务间隔。与早期间隔的请求相关联的优先级高于稍后间隔的请求的优先级。连接到第二设备的第一设备决定是否产生作为估计干扰的业务间隔的函数，如果它在业务间隔期间发送，则将对其施加在较高优先级的连接接收机上。第二装置基于接收到的对其自身的请求和对于较高优先级的连接决定是否发送作为生成的接收信号质量值的函数的正传输请求响应信号

6. 发明申请

WO2009058152A1 COMMUNICATIONS METHODS AND APPARATUS RELATED TO RATE SCHEDULING AND/OR POWER CONTROL FOR PEER TO PEER DEVICES 审中-公开
标题翻译：与对等设备对等速调频和/或功率控制相关的通信方法和装置
公开(公告)号：WO2009058152A1
公开(公告)日：2009-05-07
申请号：PCT/US2007/083387
申请日：2007-11-01
申请人： QUALCOMM Incorporated , LAROIA, Rajiv , LI, Junyi , RICHARDSON, Thomas , WU, Xinzhou , JOVICIC, Aleksandar
发明人： LAROIA, Rajiv , LI, Junyi , RICHARDSON, Thomas , WU, Xinzhou , JOVICIC, Aleksandar
IPC分类号： H04L12/56
CPC分类号： H04W72/1242 , H04W28/22 , H04W48/08 , H04W52/16 , H04W52/18 , H04W52/267 , H04W72/0473 , H04W72/12 , H04W76/14 , H04W92/18
摘要： Methods and apparatus related to peer to peer communication networks are described. A first peer to peer wireless communications device, having determined to transmit traffic data signals to a second peer to peer wireless communications device, (i) transmits a pilot signal to the second device, (ii) receives a corresponding rate information signal from the second device, and (iii) transmits traffic data to the second device at a rate and/or power level determined based on the received rate information signal. The second peer to peer wireless communications device, which anticipates to subsequently receive traffic signals from the first device, (i) receives a peer to peer pilot signal(s), performs a rate determination as a function of the received pilot signal(s), (iii) generates a rate information signal providing information to be used by the first device in determining a maximum permitted data traffic transmission rate, (iv) and transmits the generated signal to the first device.
摘要翻译：描述了与对等通信网络相关的方法和设备。已经确定将业务数据信号传输到第二对等无线通信设备的第一对等无线通信设备，（i）向第二设备发送导频信号，（ii）从第二设备接收相应的速率信息信号设备，以及（iii）以基于所接收的速率信息信号确定的速率和/或功率电平向第二设备发送业务数据。第二对等无线通信设备预期随后从第一设备接收业务信号，（i）接收点对点导频信号，根据所接收的导频信号执行速率确定，，（iii）产生速率信息信号，提供在确定最大允许数据业务传输速率时由第一设备使用的信息，（iv）并将生成的信号发送到第一设备。

7. 发明申请

WO2009058150A1 COMMUNICATIONS METHOD AND APPARATUS RELATED TO TRAFFIC SCHEDULING AND RATE CONTROL IN A PEER TO PEER COMMUNICATIONS SYSTEM 审中-公开
标题翻译：与同行通信系统相关的交通调度和速率控制相关的通信方法和装置
公开(公告)号：WO2009058150A1
公开(公告)日：2009-05-07
申请号：PCT/US2007/083383
申请日：2007-11-01
申请人： QUALCOMM Incorporated , LAROIA, Rajiv , LI, Junyi , RICHARDSON, Thomas , WU, Xinzhou , JOVICIC, Aleksandar
发明人： LAROIA, Rajiv , LI, Junyi , RICHARDSON, Thomas , WU, Xinzhou , JOVICIC, Aleksandar
IPC分类号： H04L12/56
CPC分类号： H04W72/1242 , H04W28/22 , H04W48/08 , H04W52/16 , H04W52/18 , H04W52/267 , H04W72/0473 , H04W72/12 , H04W76/14 , H04W92/18
摘要： Methods and apparatus related to peer to peer communication networks are described. A peer to peer traffic transmission request is linked to a subsequent traffic transmission interval having a fixed relationship to the transmitted transmission request. In various embodiments, when a first peer to peer device, which has requested a second device for authorization to use a linked subsequent traffic transmission interval, has been granted its request and has decided to transmit traffic during the subsequent traffic interval, the first device transmits a peer to peer pilot and receives a rate information signal, prior to transmitting the traffic signal. In some embodiments, the transmitted pilot signal and the received rate information signal are communicated using corresponding air link resources associated with the traffic interval.
摘要翻译：描述了与对等通信网络相关的方法和设备。对等业务传输请求被链接到与发送的传输请求具有固定关系的后续业务传输间隔。在各种实施例中，当已经请求授权使用链接的后续业务传输间隔的第二设备的第一对等设备已被授予其请求并且已经决定在随后的业务间隔期间传输业务时，第一设备传输对等导频，并在发送业务信号之前接收速率信息信号。在一些实施例中，使用与业务间隔相关联的对应空中链路资源来传送所发送的导频信号和接收的速率信息信号。

8. 发明申请

WO2009009572A2 METHOD AND APPARATUS FOR REUSE OF WAN INFRASTRUCTURE RESOURCES IN A WIRELESS PEER-TO-PEER (P2P) NETWORK 审中-公开
标题翻译：在无线对等（P2P）网络中重用WAN基础设施资源的方法和装置
公开(公告)号：WO2009009572A2
公开(公告)日：2009-01-15
申请号：PCT/US2008/069492
申请日：2008-07-09
申请人： QUALCOMM INCORPORATED , LI, Junyi , WU, Xinzhou , RICHARDSON, Thomas
发明人： LI, Junyi , WU, Xinzhou , RICHARDSON, Thomas
IPC分类号： H04L5/02
CPC分类号： H04W16/14 , H04L5/0007 , H04L5/0033 , H04L5/0039 , H04L5/0048 , H04L5/006 , H04L5/0062 , H04L5/0091 , H04L27/2655 , H04W72/02 , H04W84/04 , H04W84/18
摘要： To make efficient use of a frequency spectrum, a peer-to-peer network shares a wide area network (WAN) frequency spectrum as well as a time-frequency structure of the WAN, where the time-frequency structure includes a set of tones and symbols of an OFDM system. A first wireless terminal monitors the time-frequency structure of the WAN to determine which subsets of tone-symbols are unused for WAN and/or other peer-to-peer connections. Then, the first wireless terminal selects and uses an unused subset of tone-symbols within the time- frequency structure for its peer-to-peer connection with a second wireless terminal.
摘要翻译：为了有效利用频谱，对等网络共享广域网（WAN）频谱以及WAN的时间 - 频率结构，其中时间 - 频率结构包括一组音调和 OFDM系统的符号。第一无线终端监视WAN的时间 - 频率结构以确定用于WAN和/或其他对等连接的音符符号的哪些子集。然后，第一无线终端选择并使用时间 - 频率结构内的未使用的音调符号子集，用于与第二无线终端进行对等连接。

9. 发明申请

WO2009009538A2 TECHNIQUES FOR RECEIVER BEAMFORMING AND YIELDING-THRESHOLD ADJUSTMENTS IN PEER-TO-PEER NETWORKS 审中-公开
标题翻译：对等网络中的接收机波束形成技术和触发阈值调整技术
公开(公告)号：WO2009009538A2
公开(公告)日：2009-01-15
申请号：PCT/US2008/069439
申请日：2008-07-08
申请人： QUALCOMM INCORPORATED , JOVICIC, Aleksandar , RICHARDSON, Thomas , WU, Xinzhous , LI, Junyi
发明人： JOVICIC, Aleksandar , RICHARDSON, Thomas , WU, Xinzhous , LI, Junyi
IPC分类号： H04B7/08
CPC分类号： H04B7/086 , H04L5/0023 , H04L5/0032 , H04L5/0053 , H04W72/08
摘要： To mitigate interference between multiple peer-to-peer devices, transmitter yielding and/or receiver yielding may be performed among devices operating in a peer-to-peer network. Generally, a transmitter device will yield communications on a time slot to a higher priority transmitter device if it will cause unacceptable interference to a higher priority receiver device. Likewise, a receiver device may yield use of the time slot if interference is unacceptably high. Both transmitter and receiver yielding may be improved by use of beamforming at a receiver device. By utilizing beamforming information to make the transmitter and/or receiver yielding decisions, better interference mitigation may be achieved.
摘要翻译：为了减轻多个对等设备之间的干扰，可以在对等网络中运行的设备之间执行发射机的收发和/或接收机的收敛。通常，如果发射机设备将对较高优先级的发射机设备产生对较高优先级的接收机设备的不可接受的干扰，则将在时隙上产生通信。类似地，如果干扰不可接受地高，则接收机设备可以产生使用该时隙。发射机和接收机的收敛都可以通过在接收机设备处使用波束成形来改善。通过利用波束形成信息来使发射机和/或接收机产生决定，可以实现更好的干扰减轻。

10. 发明申请

WO2009009355A3 COMMUNICATION OF IDENTIFIERS FOR PEER DISCOVERY IN A PEER-TO-PEER NETWORK 审中-公开
公开(公告)号：WO2009009355A3
公开(公告)日：2009-01-15
申请号：PCT/US2008/068944
申请日：2008-07-02
申请人： QUALCOMM Incorporated , LI, Junyi , LAROIA, Rajiv , TAVILDAR, Saurabh , RICHARDSON, Thomas , WU, Xinzhou , GROKOP, Leonard H.
发明人： LI, Junyi , LAROIA, Rajiv , TAVILDAR, Saurabh , RICHARDSON, Thomas , WU, Xinzhou , GROKOP, Leonard H.
IPC分类号： H04L5/00
摘要： Systems and methodologies are described that facilitate identifying peers based upon encoded signals during peer discovery in a peer to peer network. For example, direct signaling that partitions a time-frequency resource into a number of segments can be utilized to communicate an identifier within a peer discovery interval; thus, a particular segment selected for transmission can signal a portion of the identifier, while a remainder can be signaled based upon tones communicated within the selected segment. Moreover, a subset of symbols within the resource can be reserved (e.g., unused) to enable identifying and/or correcting timing offset. Further, signaling can be effectuated over a plurality of peer discovery intervals such that partial identifiers communicated during each of the peer discovery intervals can be linked (e.g., based upon overlapping bits and/or bloom filter information).

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