公开(公告)号：US09008152B2

公开(公告)日：2015-04-14

申请号：US14010921

申请日：2013-08-27

申请人： Nokia Corporation

发明人： Krishna C. Garikipati ,  Sayantan Choudhury

IPC分类号： H04B1/00 ,  H04W24/08

CPC分类号： H04L25/0202 ,  H04B7/0417 ,  H04B7/0452 ,  H04B7/063

摘要： Embodiments of the invention provide signaling mechanisms for wireless networks composed of a large number of stations. An example method embodiment comprises: storing, by a wireless device, a prior channel estimate that was previously transmitted to another wireless device in a wireless network; receiving, by the wireless device, a request message from the other device, to determine a distortion between a current channel estimate and the prior channel estimate and compare the determined distortion to a distortion threshold value, the request message being a broadcast request message or a measurement request message and the distortion value being either included in the request message, received in another message, or a preconfigured value; determining, by the wireless device, the distortion between the current channel estimate and the prior channel estimate and comparing the determined distortion to the distortion threshold value; and transmitting, by the wireless device, one or more parallel or sequential messages to the other device, indicating presence of the determined distortion greater than the distortion threshold value or indicating an inability to determine a distortion in channel estimates.

摘要翻译： 本发明的实施例提供了由大量站组成的无线网络的信令机制。 示例性方法实施例包括：由无线设备存储先前在无线网络中发送到另一无线设备的信道估计; 由无线设备接收来自另一设备的请求消息，以确定当前信道估计与先前信道估计之间的失真，并将所确定的失真与失真阈值进行比较，所述请求消息是广播请求消息或 测量请求消息和失真值被包括在请求消息中，在另一个消息中接收，或者是预配置的值; 由无线设备确定当前信道估计与先前信道估计之间的失真并将确定的失真与失真阈值进行比较; 以及由无线设备将一个或多个并行或连续消息发送到另一设备，指示所确定的失真的存在大于失真阈值或指示不能确定信道估计中的失真。

公开(公告)号：US09510369B2

公开(公告)日：2016-11-29

申请号：US14338019

申请日：2014-07-22

申请人： Nokia Corporation

发明人： Hossein Ali Safavi Naeini ,  Chittabrata Ghosh ,  Klaus Franz Doppler ,  Sayantan Choudhury ,  Sumit Roy

IPC分类号： H04W74/08 ,  H04W72/08 ,  H04W52/24 ,  H04W88/08 ,  H04B1/00 ,  H04B15/00 ,  H04W52/34 ,  H04W52/38

CPC分类号： H04W74/0808 ,  H04B1/00 ,  H04B15/00 ,  H04W52/244 ,  H04W52/343 ,  H04W52/38 ,  H04W72/082 ,  H04W88/08

摘要： Methods and apparatus, including computer program products, are provided for sensing and/or transmission coverage adaptation using interference information. In one aspect there is provided a method. The method may include determining, at a node, a degree of interference at the node; receiving, at the node, at least one message from at least one neighboring node, the at least one message including another degree of interference observed at the at least one neighboring node; and adjusting, by the node based on the degree of interference at the node and the at least another degree of interference, at least one of a receiver sensitivity of the node, a clear channel assessment detection range of the node, or a transmit power of the node. Related apparatus, systems, methods, and articles are also described.

摘要翻译： 提供包括计算机程序产品在内的方法和装置用于使用干扰信息进行感测和/或传输覆盖适配。 在一个方面，提供了一种方法。 该方法可以包括在节点处确定节点处的干扰程度; 在所述节点处从至少一个相邻节点接收至少一个消息，所述至少一个消息包括在所述至少一个相邻节点处观察到的另一程度的干扰; 以及基于所述节点的所述干扰程度和所述至少另一个干扰程度，由所述节点调整所述节点的接收机灵敏度，所述节点的清晰信道评估检测范围或所述节点的发射功率中的至少一个 节点。 还描述了相关装置，系统，方法和制品。

公开(公告)号：US09473179B2

公开(公告)日：2016-10-18

申请号：US13740863

申请日：2013-01-14

申请人： NOKIA CORPORATION

发明人： Amitav Mukherjee ,  Sayantan Choudhury

IPC分类号： H03M13/00

CPC分类号： H03M13/6525 ,  H03M13/612

摘要： Methods, apparatuses, and computer program products for signal detection and classification are provided. One method includes detecting, by a station, a presence of a signal and classifying the signal according to type. There may be at least three possibilities for the type of signal. The classifying may include performing a composite hypothesis test, such as a generalized likelihood ratio test (GLRT) for the at least three possibilities.

摘要翻译： 提供了用于信号检测和分类的方法，设备和计算机程序产品。 一种方法包括通过站检测信号的存在并根据类型对信号进行分类。 信号类型可能至少有三种可能性。 分类可以包括对于至少三种可能性执行复合假设检验，例如广义似然比检验（GLRT）。

公开(公告)号：US09344916B2

公开(公告)日：2016-05-17

申请号：US14592462

申请日：2015-01-08

申请人： Nokia Corporation

发明人： Taejoon Kim ,  Sayantan Choudhury ,  Klaus F. Doppler ,  Chittabrata Ghosh ,  Zhong-Yi Jin ,  Esa Tuomaala

IPC分类号： H04W16/14 ,  H04W28/06 ,  H04W74/00 ,  H04W72/04 ,  H04W74/06

CPC分类号： H04W28/06 ,  H04W16/14 ,  H04W72/0466 ,  H04W74/00 ,  H04W74/06

摘要： A first access node of a first network utilizes code sequences, assigned to different user devices, to distinguish at least acknowledgements received in parallel or sequentially from those user devices. The first access node determines from received signaling that a root sequence of the code sequences is in use by a second access node of a second network, then changes that root sequence of the code sequences assigned to the different user devices. In certain examples the access nodes are WLAN access points APs and the acknowledgements are received in response to a group probe/poll. In various embodiments the first AP monitors its neighbors' group probes/polls to learn the root sequences/basic service sets in use in those neighbor networks, or the AP's own stations monitor and send the information in neighbor reports. This latter option can be initiated by the stations themselves, or by the AP.

公开(公告)号：US20150124706A1

公开(公告)日：2015-05-07

申请号：US14592462

申请日：2015-01-08

申请人： Nokia Corporation

发明人： Taejoon Kim ,  Sayantan Choudhury ,  Klaus E. Doppler ,  Chittabrata Ghosh ,  Zhong-Yi Jin ,  Esa Tuomaala

IPC分类号： H04W28/06

CPC分类号： H04W28/06 ,  H04W16/14 ,  H04W72/0466 ,  H04W74/00 ,  H04W74/06

摘要： A first access node of a first network utilizes code sequences, assigned to different user devices, to distinguish at least acknowledgements received in parallel or sequentially from those user devices. The first access node determines from received signaling that a root sequence of the code sequences is in use by a second access node of a second network, then changes that root sequence of the code sequences assigned to the different user devices. In certain examples the access nodes are WLAN access points APs and the acknowledgements are received in response to a group probe/poll. In various embodiments the first AP monitors its neighbors' group probes/polls to learn the root sequences/basic service sets in use in those neighbor networks, or the AP's own stations monitor and send the information in neighbor reports. This latter option can be initiated by the stations themselves, or by the AP.

摘要翻译： 第一网络的第一接入节点利用分配给不同用户设备的代码序列，至少区分并行或顺序接收的确认与那些用户设备。 第一接入节点从接收到的信令确定代码序列的根序列正在由第二网络的第二接入节点使用，然后改变分配给不同用户设备的码序列的根序列。 在某些示例中，接入节点是WLAN接入点AP，并且响应于组探测/轮询接收确认。 在各种实施例中，第一AP监视其邻居的组探测/轮询以学习在这些邻居网络中使用的根序列/基本服务集，或者AP本身的站在邻居报告中监视和发送信息。 后一选项可以由站本身或AP发起。

公开(公告)号：US20150117418A1

公开(公告)日：2015-04-30

申请号：US14064628

申请日：2013-10-28

申请人： Nokia Corporation

发明人： Erika Portela Lopes De Almeida ,  Andre Mendes Cavalcante ,  Fuad Mousse Abinader, JR. ,  Sayantan Choudhury ,  Fabiano Chaves ,  Klaus Franz Doppler

IPC分类号： H04W74/04

CPC分类号： H04W74/02

摘要： There is provided a method, comprising: detecting, by a node of a first wireless network, that at least one overlapping second wireless network is configured to apply contention periods and contention-free periods for communicating with different subsets of devices; detecting that a contention period timing applied by the at least one overlapping second wireless network is not aligned with a contention period timing applied by the node of the first wireless network; and causing a modification of the contention period timing in at least one of the wireless networks in order to have the contention periods to take place at least partly at the same time in each overlapping wireless network.

摘要翻译： 提供了一种方法，包括：由第一无线网络的节点检测至少一个重叠的第二无线网络被配置为应用争用周期和无竞争周期以与不同的设备子集进行通信; 检测由所述至少一个重叠的第二无线网络施加的争用周期定时与由所述第一无线网络的所述节点施加的争用周期定时不一致; 以及在至少一个所述无线网络中引起争用周期定时的修改，以便在每个重叠的无线网络中至少部分地同时发生争用周期。

公开(公告)号：US20150078259A1

公开(公告)日：2015-03-19

申请号：US14026245

申请日：2013-09-13

申请人： Nokia Corporation

发明人： Fuad Mousse Abinader Junior ,  Sayantan Choudhury ,  Fabiano Chaves ,  Andre Mendes Cavalcente ,  Erika Portela Lopes De Almeida ,  Robson Domingos Vieira ,  Klaus Franz Doppler

IPC分类号： H04W24/02 ,  H04W16/14

CPC分类号： H04W24/02 ,  H04W16/14 ,  H04W72/1215

摘要： This document discloses a solution for reducing interference between wireless networks. According to an aspect, a method comprises: acquiring, by an access node of a first wireless network from at least one node of the first wireless network, information on at least one interfering node of a second wireless network; generating, by the access node, mapping information between the node of the first wireless network and said at least one interfering node; and causing, by the access node, transmission of the mapping information to another access node of the second wireless network.

摘要翻译： 本文件公开了一种减少无线网络之间干扰的解决方案。 根据一个方面，一种方法包括：由第一无线网络的至少一个节点的接入节点从第一无线网络的接入节点获取关于第二无线网络的至少一个干扰节点的信息; 由所述接入节点生成所述第一无线网络的所述节点与所述至少一个干扰节点之间的映射信息; 以及由所述接入节点将所述映射信息传输到所述第二无线网络的另一接入节点。

公开(公告)号：US20150071180A1

公开(公告)日：2015-03-12

申请号：US14020348

申请日：2013-09-06

申请人： Nokia Corporation

发明人： Andre Mendes Cavalcante ,  Sayantan Choudhury ,  Fabiano Chaves ,  Esa Juhani Tuomaala ,  Fuad Mousse Abinader Junior ,  Erika Portela Lopes De Almeida ,  Robson Domingos Vieira ,  Klaus Franz Doppler

IPC分类号： H04W72/04

CPC分类号： H04W74/0816

摘要： There is provided a method, comprising: receiving, by a target node of a wireless access network, a signal from a first source node; determining the angular sector in which the first source node is located with respect to the target node; responding to the signal by both transmitting a first message omni-directionally and transmitting a second message directionally towards the angular sector; and establishing a first resource reservation on a frequency channel at least partly on the basis of transmitting the first message and the second message, wherein the first resource reservation is for performing directional data transfer with the first source node.

摘要翻译： 提供了一种方法，包括：由无线接入网络的目标节点接收来自第一源节点的信号; 确定所述第一源节点相对于所述目标节点位于的角扇区; 响应所述信号，通过全方向地发送第一消息并向所述角扇区定向发送第二消息; 以及至少部分地基于发送所述第一消息和所述第二消息在频道上建立第一资源预留，其中所述第一资源预留用于执行与所述第一源节点的方向性数据传输。

公开(公告)号：US09565567B2

公开(公告)日：2017-02-07

申请号：US14211817

申请日：2014-03-14

申请人： Nokia Corporation

发明人： Fabiano de Sousa Chaves ,  Sayantan Choudhury ,  Fuad Mousse Abinader, Jr. ,  Andre Mendes Cavalcante ,  Erika Portela Lopes de Almeida ,  Esa Tuomaala ,  Klaus F. Doppler ,  Mika Kasslin

IPC分类号： H04W16/14 ,  H04W74/08 ,  H04W84/12

CPC分类号： H04W16/14 ,  H04W74/0808 ,  H04W74/0816 ,  H04W84/12

摘要： In one aspect the embodiments of the invention provide a method that includes transmitting a first frame comprising a first type of message from a first node for reception by a second node. The first node is associated with a first wireless communication system and the second node is associated with a second wireless communication system. The first type of message includes a first information element for identifying the second node and a second information element for specifying that the first frame is transmitted to initiate a request for simultaneous transmission by the first node and by the second node. The first frame is also received by a third node that is part of the first wireless communication system. The method further includes receiving from the third node a second frame that includes a second type of message. The second type of message identifies the second node and specifies, based on a measurement performed by the third node on the first frame and a measurement performed by the third node on a third frame transmitted by the second node, whether the request for simultaneous transmission is accepted or is not accepted by the third node. The method further includes transmitting a fourth frame that includes the second type of message from the first node for reception by the second node. The second type of message identifies the second node and specifies that the request for simultaneous transmission was accepted by the third node.

摘要翻译： 在一个方面，本发明的实施例提供了一种方法，其包括从第一节点发送包括第一类型的消息的第一帧以供第二节点接收。 第一节点与第一无线通信系统相关联，第二节点与第二无线通信系统相关联。 第一类型的消息包括用于识别第二节点的第一信息元素和用于指定第一帧被发送的第二信息元素，以发起由第一节点和第二节点同时发送的请求。 第一帧也由作为第一无线通信系统的一部分的第三节点接收。 该方法还包括从第三节点接收包括第二类型消息的第二帧。 第二类型的消息标识第二节点，并且基于由第一帧上的第三节点执行的测量和由第二节点发送的第三帧上由第三节点执行的测量来指定是否同时发送的请求是 接受或不被第三个节点接受。 该方法还包括从第一节点发送包括第二类型消息的第四帧以供第二节点接收。 第二种类型的消息标识第二个节点，并指定第三个节点接受同时发送的请求。

公开(公告)号：US09432854B2

公开(公告)日：2016-08-30

申请号：US14026245

申请日：2013-09-13

申请人： Nokia Corporation

发明人： Fuad Mousse Abinader, Jr. ,  Sayantan Choudhury ,  Fabiano de Sousa Chaves ,  Andre Mendes Cavalcante ,  Erika Portela Lopes de Almeida ,  Robson Domingos Vieira ,  Klaus Franz Doppler

IPC分类号： H04W24/02 ,  H04W72/12 ,  H04W16/14

CPC分类号： H04W24/02 ,  H04W16/14 ,  H04W72/1215

摘要： This document discloses a solution for reducing interference between wireless networks. According to an aspect, a method comprises: acquiring, by an access node of a first wireless network from at least one node of the first wireless network, information on at least one interfering node of a second wireless network; generating, by the access node, mapping information between the node of the first wireless network and said at least one interfering node; and causing, by the access node, transmission of the mapping information to another access node of the second wireless network.

摘要翻译： 本文件公开了一种减少无线网络之间干扰的解决方案。 根据一个方面，一种方法包括：由第一无线网络的至少一个节点的接入节点从第一无线网络的接入节点获取关于第二无线网络的至少一个干扰节点的信息; 由所述接入节点生成所述第一无线网络的所述节点与所述至少一个干扰节点之间的映射信息; 以及由所述接入节点将所述映射信息传输到所述第二无线网络的另一接入节点。