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1. 发明申请

WO2012078785A3 CARRIER SENSE MULTIPLE ACCESS (CSMA) PROTOCOLS FOR POWER LINE COMMUNICATIONS (PLC) 审中-公开
公开(公告)号：WO2012078785A3
公开(公告)日：2012-06-14
申请号：PCT/US2011/063786
申请日：2011-12-07
申请人： TEXAS INSTRUMENTS INCORPORATED , TEXAS INSTRUMENTS JAPAN LIMITED , DU, Shu , LIANG, Robert , LU, Xiaolin
发明人： DU, Shu , LIANG, Robert , LU, Xiaolin
IPC分类号： H04B3/54
摘要： Systems and methods for carrier sense multiple access (CSMA) protocols for power line communications (PLC) are described. A method may include performing a virtual carrier sensing operation and, in response to the virtual carrier sensing operation indicating that a communication channel is idle, calculating a contention window (602). The method may also include performing a physical carrier sensing operation subsequent to the virtual carrier sensing operation, the physical carrier sensing operation based, at least in part, upon the contention window (604). In response to the physical carrier sensing operation indicating that the communication channel is idle, the method may then include transmitting data over the channel (606). Another method may include determining that a transmission is a unicast transmission and that an acknowledgement message has not been received (607, 608). The method may further include incrementing a backoff parameter (609) and repeating one or more carrier sense operations (602, 604).

2. 发明申请

WO2013003742A1 BEACON SELECTION IN COMMUNICATION NETWORKS 审中-公开
标题翻译：通信网络中的BEACON选择
公开(公告)号：WO2013003742A1
公开(公告)日：2013-01-03
申请号：PCT/US2012/044980
申请日：2012-06-29
申请人： TEXAS INSTRUMENTS INCORPORATED , TEXAS INSTRUMENTS JAPAN LIMITED , VIJAYASANKAR, Kumaran , VEDANTHAM, Ramanuja , LIANG, Robert , YIM, Susan , LU, Xiaolin
发明人： VIJAYASANKAR, Kumaran , VEDANTHAM, Ramanuja , LIANG, Robert , YIM, Susan , LU, Xiaolin
IPC分类号： H04B3/54
CPC分类号： H04B3/542 , H04L5/0007 , H04L25/0264
摘要： Systems and methods for beacon selection in communication networks are described. In various implementations, these systems and methods may be applicable to Power Line Communications (PLC). For example, a method may include performing, using a terminal device deployed in a communications network, receiving a beacon transmitted by a switch device within the communications network (805) and, in response to the terminal device having had a previous connection with the switch device, determining a connection time of the previous connection (815). The method may also include performing at least one of: adding the switch device to a blacklist (825) in response to the connection time being smaller than a first threshold value (820), or selecting the switch device for subsequent communication (835) in response to the connection time being greater than a second threshold value (830).
摘要翻译：描述了通信网络中信标选择的系统和方法。在各种实现中，这些系统和方法可以适用于电力线通信（PLC）。例如，一种方法可以包括使用部署在通信网络中的终端设备来执行通信网络（805）内的交换设备发送的信标，以及响应于终端设备已经与交换机之前的连接设备，确定先前连接的连接时间（815）。该方法还可以包括执行以下至少之一：响应于连接时间小于第一阈值（820）将交换设备添加到黑名单（825），或者选择用于后续通信（835）的交换设备对连接时间的响应大于第二阈值（830）。

3. 发明申请

WO2012162691A2 EVENT-BASED KEEP ALIVE TIMES IN COMMUNICATION NETWORKS 审中-公开
标题翻译：在通信网络中基于事件的保持时间
公开(公告)号：WO2012162691A2
公开(公告)日：2012-11-29
申请号：PCT/US2012/039799
申请日：2012-05-29
申请人： TEXAS INSTRUMENTS INCORPORATED , TEXAS INSTRUMENTS JAPAN LIMITED , VIJAYASANKAR, Kumaran , VEDANTHAM, Ramanuja , LU, Xiaolin
发明人： VIJAYASANKAR, Kumaran , VEDANTHAM, Ramanuja , LU, Xiaolin
IPC分类号： H04L29/02 , H04L29/12
CPC分类号： H02J13/0006 , H04L43/0811 , H04L43/10 , H04L47/28 , H04L67/12 , H04L69/28 , H04W84/18 , Y04S40/168
摘要： A method (400) of communicating in a network having a plurality of nodes including a base node (BN), and a plurality of service nodes (SNs) having at least one switch node (SW) and at least one terminal node (TN). The method includes at least one of a) a first SN from the plurality of SNs receiving (401) (i) a data /ALV_B/ACK frame from the BN or (ii) a beacon from the BN or SW, and restarting (402) a first KA timer at the first SN upon (i) or (ii), and b) restarting (403) an ALV_S timer at the BN for the first SN upon receiving a data/ALV S/ACK frame from the first SN.
摘要翻译：一种在具有多个节点的网络中通信的方法（400），所述多个节点包括基本节点（BN）和具有至少一个交换节点（SW）和至少一个终端节点（TN）的多个服务节点（SN）。所述方法包括以下中的至少一个：a）来自所述多个SN的第一SN接收（401）（i）来自所述BN的数据/ ALV_B / ACK帧或（ii）来自所述BN或SW的信标，以及重启（402 ）在（i）或（ii）处的第一SN处的第一KA定时器，以及b）当从第一SN接收到数据/ ALV S / ACK帧时，重新开始（403）在BN处的第一SN的ALV_S定时器。

4. 发明申请

WO2012109336A1 CHANNEL SELECTION IN POWER LINE COMMUNICATIONS 审中-公开
标题翻译：电力线通信中的通道选择
公开(公告)号：WO2012109336A1
公开(公告)日：2012-08-16
申请号：PCT/US2012024307
申请日：2012-02-08
申请人： TEXAS INSTRUMENTS INC , TEXAS INSTRUMENTS JAPAN , DU SHU , DABAK ANAND G , LU XIAOLIN , KIM HAN IL
发明人： DU SHU , DABAK ANAND G , LU XIAOLIN , KIM HAN IL
IPC分类号： H04B3/54 , H04L12/56
CPC分类号： H04B3/54 , H04B3/544 , H04B2203/5408 , H04B2203/5466 , H04B2203/5495 , H04L7/00 , H04L12/10 , H04L43/0823
摘要： Systems and methods for channel selection in power line communications (PLC) are described. In some embodiments, a method may include defining a plurality of frames, each frame having a plurality of time slots (710). The method may also include assembling a pair of beacon and bandscan packets within each of time slot of each frame (720). The method may further include sequentially transmitting each of the frames over a corresponding one of a plurality of different frequency bands (725, 730). In some implementations, each bandscan packet may include a slot index indicating its position within its frame and/or a band index indicating one of the plurality of different frequency bands. In response to having transmitted the plurality of frames, the method may include receiving one or more packets indicating a selection of one or more of the plurality of different frequency bands to be used in subsequent communications (935, 1240).
摘要翻译：描述了电力线通信（PLC）中通道选择的系统和方法。在一些实施例中，方法可以包括定义多个帧，每个帧具有多个时隙（710）。该方法还可以包括在每个帧的每个时隙内组装一对信标和带扫描分组（720）。该方法还可以包括在多个不同频带（725,730）中的相应一个上顺序发送每个帧。在一些实现中，每个带扫描分组可以包括指示其在其帧内的位置的时隙索引和/或指示多个不同频带之一的频带索引。响应于已经发送了多个帧，该方法可以包括接收一个或多个分组，指示将在随后的通信中使用的多个不同频带中的一个或多个的选择（935,1240）。

5. 发明申请

WO2012082744A1 MEDIA ACCESS CONTROL LAYER FOR POWER LINE COMMUNICATIONS 审中-公开
标题翻译：用于电力线通信的媒体接入控制层
公开(公告)号：WO2012082744A1
公开(公告)日：2012-06-21
申请号：PCT/US2011/064655
申请日：2011-12-13
申请人： TEXAS INSTRUMENTS INCORPORATED , TEXAS INSTRUMENTS JAPAN LIMITED , DU, Shu , LU, Xiaolin , VARADARAJAN, Badri, N.
发明人： DU, Shu , LU, Xiaolin , VARADARAJAN, Badri, N.
IPC分类号： H04B3/54 , H04L12/56 , H04L12/413
CPC分类号： A61C17/228 , A46B3/20 , A61C17/3481
摘要： Systems and methods for a media access control (MAC) layer for power line communications (PLC) are described. A method may include receiving packets for transmission, each packet associated with a priority code, each priority code unrelated to its corresponding packet's time or order of arrival (801). The method may also include transmitting a first subset of packets having priority codes higher than priority codes in a second subset, and buffering the packets in the second subset for later transmission (802, 803). Another method may include identifying a link quality indicator (LQI) associated neighboring service nodes, selecting one of the service nodes with highest LQI, and transmitting a promotion needed packet data unit to the selected service node. Yet another method may include communicating an Internet protocol (IP) -based message to a PLC device that excludes mesh header information, fragmentation header information, and/or the IP address of the PLC device.
摘要翻译：描述了用于电力线通信（PLC）的媒体访问控制（MAC）层的系统和方法。一种方法可以包括接收用于传输的分组，与优先级代码相关联的每个分组，与其相应分组的时间或到达顺序无关的每个优先级代码（801）。该方法还可以包括在第二子集中传送具有高于优先级码的优先权码的分组的第一子集，以及缓冲第二子集中的分组用于稍后传输（802,803）。另一种方法可以包括识别相关联的相邻服务节点的链路质量指示符（LQI），选择具有最高LQI的服务节点中的一个，以及将所需的分组数据单元发送到所选择的服务节点。另一种方法可以包括将基于因特网协议（IP）的消息传送到PLC设备，该PLC设备不包括网络报头信息，分段报头信息和/或PLC设备的IP地址。

6. 发明申请

WO2013147920A1 COMMUNICATIONS IN BEACON-ENABLED NETWORKS 审中-公开
标题翻译： BEACON-ENABLED网络中的通信
公开(公告)号：WO2013147920A1
公开(公告)日：2013-10-03
申请号：PCT/US2012/032785
申请日：2012-04-09
申请人： TEXAS INSTRUMENTS INCORPORATED , TEXAS INSTRUMENTS JAPAN LIMITED , VIJAYASANKAR, Kumaran , DU, Shu , DABAK, Anand , VARADARAJAN, Badri , KIM, Han, II , LU, Xiaolin
发明人： VIJAYASANKAR, Kumaran , DU, Shu , DABAK, Anand , VARADARAJAN, Badri , KIM, Han, II , LU, Xiaolin
IPC分类号： H04B3/54
CPC分类号： H04B3/542 , H04L5/0007 , H04L5/0048 , H04L5/0053 , H04L5/0073
摘要： Systems and methods for designing, using, and/or implementing communications in beacon- enabled networks are described. In various implementations, these systems and methods may be applicable to power line communications (PLC). For example, a method (900) may include identifying one of a plurality of orthogonal superframes (905). The identified superframe may include beacon slots and contention access period (CAP) slots. The beacon slots may follow a sequence of two or more frequency subbands, and the CAP slots may follow the same sequence of two or more frequency subbands. Also, the sequence of two or more frequency subbands may be distinct from other sequences of two or more frequency subbands followed by other beacon slots and CAP slots within others of the plurality of available superframes. The method may then include communicating with another device using the identified superframe (910).
摘要翻译：描述了在启用信标的网络中设计，使用和/或实现通信的系统和方法。在各种实现中，这些系统和方法可以应用于电力线通信（PLC）。例如，方法（900）可以包括识别多个正交超帧中的一个（905）。所识别的超帧可以包括信标时隙和竞争接入时隙（CAP）时隙。信标时隙可以遵循两个或更多个频率子带的序列，并且CAP时隙可以遵循两个或更多个频率子带的相同序列。而且，两个或多个频率子带的序列可以与两个或多个频率子带的其他序列不同，后面是多个可用超帧中的其他信标时隙和CAP时隙。该方法然后可以包括使用所识别的超帧与另一设备进行通信（910）。

7. 发明申请

WO2013016271A2 DYNAMIC MEDIUM SWITCH IN CO-LOCATED PLC AND RF NETWORKS 审中-公开
标题翻译：位于同一地点的PLC和射频网络中的动态媒体切换
公开(公告)号：WO2013016271A2
公开(公告)日：2013-01-31
申请号：PCT/US2012/047820
申请日：2012-07-23
申请人： TEXAS INSTRUMENTS INCORPORATED , TEXAS INSTRUMENTS JAPAN LIMITED , SUN, Yanjun , XU, Gang , CHOI, Soon-hyeok , SANDEEP, Bhadra , LU, Xiaolin , XHAFA, Ariton , FU, Minghua , LIANG, Robert, W. , YIM, Susan
发明人： SUN, Yanjun , XU, Gang , CHOI, Soon-hyeok , SANDEEP, Bhadra , LU, Xiaolin , XHAFA, Ariton , FU, Minghua , LIANG, Robert, W. , YIM, Susan
IPC分类号： H04L29/12 , H04B3/54
CPC分类号： H04B3/54 , H04B1/123 , H04B1/401 , H04B3/30 , H04B2203/5441 , H04B2203/5495
摘要： An electronic communication device (202, 204) comprises a first transceiver (206, 210) capable of a bi-directional communication session on a first communication medium (214); a second transceiver (208, 212) capable of a bi-directional communication session on a second communication medium (216); and a control logic (218, 220) coupled to the first transceiver and the second transceiver and capable of implementing a convergence layer, wherein the control logic is configured to receive, from the first transceiver, a first signal; and to cause, in response to the first signal, data received and transmitted as part of a communication session by the first transceiver (206, 210) on the first communication medium (214) instead to be received and transmitted by the second transceiver (208, 212) on the second communication medium (216).
摘要翻译：电子通信设备（202,204）包括能够在第一通信介质（214）上进行双向通信会话的第一收发器（206,210）。能够在第二通信介质（216）上进行双向通信会话的第二收发器（208,212）; 以及耦合到所述第一收发器和所述第二收发器并能够实现汇聚层的控制逻辑（218,220），其中所述控制逻辑被配置为从所述第一收发器接收第一信号; 并且响应于所述第一信号，使得由所述第一通信介质（214）上的所述第一收发器（206,210）作为通信会话的一部分接收和发送的数据改为由所述第二收发器（208）接收和发送，212）在第二通信介质（216）上。

8. 发明申请

WO2012109336A8 CHANNEL SELECTION IN POWER LINE COMMUNICATIONS 审中-公开
公开(公告)号：WO2012109336A8
公开(公告)日：2012-08-16
申请号：PCT/US2012/024307
申请日：2012-02-08
申请人： TEXAS INSTRUMENTS INCORPORATED , TEXAS INSTRUMENTS JAPAN LIMITED , DU, Shu , DABAK, Anand, G. , LU, Xiaolin , KIM, Han, Il
发明人： DU, Shu , DABAK, Anand, G. , LU, Xiaolin , KIM, Han, Il
IPC分类号： H04B3/54 , H04L12/56
摘要： Systems and methods for channel selection in power line communications (PLC) are described. In some embodiments, a method may include defining a plurality of frames, each frame having a plurality of time slots (710). The method may also include assembling a pair of beacon and bandscan packets within each of time slot of each frame (720). The method may further include sequentially transmitting each of the frames over a corresponding one of a plurality of different frequency bands (725, 730). In some implementations, each bandscan packet may include a slot index indicating its position within its frame and/or a band index indicating one of the plurality of different frequency bands. In response to having transmitted the plurality of frames, the method may include receiving one or more packets indicating a selection of one or more of the plurality of different frequency bands to be used in subsequent communications (935, 1240).

9. 发明申请

WO2012078785A2 CARRIER SENSE MULTIPLE ACCESS (CSMA) PROTOCOLS FOR POWER LINE COMMUNICATIONS (PLC) 审中-公开
标题翻译：用于电力线通信的载波侦听多路访问（CSMA）协议（PLC）
公开(公告)号：WO2012078785A2
公开(公告)日：2012-06-14
申请号：PCT/US2011063786
申请日：2011-12-07
申请人： TEXAS INSTRUMENTS INC , TEXAS INSTRUMENTS JAPAN , DU SHU , LIANG ROBERT , LU XIAOLIN
发明人： DU SHU , LIANG ROBERT , LU XIAOLIN
IPC分类号： H04B3/54
CPC分类号： H04B3/542 , H04B2203/5408 , H04B2203/5416
摘要： Systems and methods for carrier sense multiple access (CSMA) protocols for power line communications (PLC) are described. A method may include performing a virtual carrier sensing operation and, in response to the virtual carrier sensing operation indicating that a communication channel is idle, calculating a contention window (602). The method may also include performing a physical carrier sensing operation subsequent to the virtual carrier sensing operation, the physical carrier sensing operation based, at least in part, upon the contention window (604). In response to the physical carrier sensing operation indicating that the communication channel is idle, the method may then include transmitting data over the channel (606). Another method may include determining that a transmission is a unicast transmission and that an acknowledgement message has not been received (607, 608). The method may further include incrementing a backoff parameter (609) and repeating one or more carrier sense operations (602, 604).
摘要翻译：描述了用于电力线通信（PLC）的载波侦听多路访问（CSMA）协议的系统和方法。一种方法可以包括执行虚拟载波侦听操作，并且响应于虚拟载波侦听操作指示通信信道空闲，计算竞争窗口（602）。该方法还可以包括在虚拟载波感测操作之后执行物理载波感测操作，物理载波感测操作至少部分地基于竞争窗口（604）。响应于指示通信信道空闲的物理载波感测操作，该方法可接着包括通过信道发送数据（606）。另一种方法可以包括确定传输是单播传输并且还没有接收到确认消息（607,608）。该方法还可以包括递增退避参数（609）并且重复一个或多个载波侦听操作（602,604）。

10. 发明申请

WO2012075496A2 ROUTING PROTOCOLS FOR POWER LINE COMMUNICATIONS 审中-公开
标题翻译：用于电力线通信的路由协议
公开(公告)号：WO2012075496A2
公开(公告)日：2012-06-07
申请号：PCT/US2011/063303
申请日：2011-12-05
申请人： TEXAS INSTRUMENTS INCORPORATED , TEXAS INSTRUMENTS JAPAN LIMITED , ANANTHAKRISHNAN, Ramachandran , DU, Shu , LU, Xiaolin
发明人： ANANTHAKRISHNAN, Ramachandran , DU, Shu , LU, Xiaolin
IPC分类号： H04L12/28 , H04B3/54 , G01R22/06
CPC分类号： H04L45/54 , H04B3/54 , H04B3/542 , H04B2203/5445 , H04L45/12 , H04L45/34 , H04W40/28
摘要： Systems and methods for routing protocols for power line communications (PLC) are described. A method may include transmitting a one-hop broadcast request to a plurality of PLC devices in a mesh network and receiving a response from each of the devices (601). The method may also include selecting one of the devices as a bootstrapping agent (603), sending a join request to a bootstrapping server through the bootstrapping agent (604), and, in response to successfully joining the network, setting the bootstrapping agent as a next hop toward a bootstrapping server (607). Another method may include maintaining a routing table for a plurality of PLC devices in a mesh network, receiving a join request from a PLC device (604, 605), accepting the request, and updating the table to add a record corresponding to the PLC device; the record setting the bootstrapping agent as a penultimate hop toward the PLC device (606).
摘要翻译：描述了用于电力线通信（PLC）的路由协议的系统和方法。一种方法可以包括向网状网络中的多个PLC设备发送一跳广播请求并从每个设备接收响应（601）。该方法还可以包括将设备中的一个选择为引导代理（603），通过引导代理（604）向引导服务器发送加入请求，并且响应于成功加入网络，将引导代理设置为下一跳到引导服务器（607）。另一种方法可以包括维护网状网络中的多个PLC设备的路由表，从PLC设备接收连接请求（604,605），接受该请求，并更新该表以添加对应于该PLC设备的记录 ; 该记录将引导代理设置为对PLC设备的倒数第二跳（606）。

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