公开(公告)号：US09762421B2

公开(公告)日：2017-09-12

申请号：US14239223

申请日：2012-08-10

申请人： Yuanyuan Li ,  Yeming Tang ,  Wenling Bai ,  Chenggang Jiang ,  Yu Yang ,  Xiaolu Wang ,  Xin Tong

发明人： Yuanyuan Li ,  Yeming Tang ,  Wenling Bai ,  Chenggang Jiang ,  Yu Yang ,  Xiaolu Wang ,  Xin Tong

IPC分类号： H04L27/00 ,  H04W16/14

CPC分类号： H04L27/0006 ,  H04W16/14

摘要： A method and device for determining available spectrums is disclosed in embodiments of the present invention. By applying the technical solution of the embodiments of the present invention, with consideration on the bi-directionality of the interference between wireless communication systems, when introduction of the cognitive system is required, the corresponding frequency will be determined as an available frequency only in the case the incumbent system and the cognitive system can be simultaneously guaranteed to meet the corresponding coexistence criterion among the corresponding frequency and adjacent frequencies thereof, thus ensuring that the determined available frequency band guarantees that the normal operation of the incumbent system is not interfered by the cognitive system while ensuring that the newly-introduced cognitive system can also operate normally without interference of the incumbent system, thereby improving the communication quality of the wireless communication systems.

公开(公告)号：US20150163080A1

公开(公告)日：2015-06-11

申请号：US14239223

申请日：2012-08-10

申请人： Yuanyuan Li ,  Yeming Tang ,  Wenling Bai ,  Chenggang Jiang ,  Yu Yang ,  Xiaolu Wang ,  Xin Tong

发明人： Yuanyuan Li ,  Yeming Tang ,  Wenling Bai ,  Chenggang Jiang ,  Yu Yang ,  Xiaolu Wang ,  Xin Tong

IPC分类号： H04L27/00 ,  H04W16/14

CPC分类号： H04L27/0006 ,  H04W16/14

摘要： A method and device for determining available spectrums is disclosed in embodiments of the present invention. By applying the technical solution of the embodiments of the present invention, with consideration on the bi-directionality of the interference between wireless communication systems, when introduction of the cognitive system is required, the corresponding frequency will be determined as an available frequency only in the case the incumbent system and the cognitive system can be simultaneously guaranteed to meet the corresponding coexistence criterion among the corresponding frequency and adjacent frequencies thereof, thus ensuring that the determined available frequency band guarantees that the normal operation of the incumbent system is not interfered by the cognitive system while ensuring that the newly-introduced cognitive system can also operate normally without interference of the incumbent system, thereby improving the communication quality of the wireless communication systems.

摘要翻译： 在本发明的实施例中公开了一种用于确定可用频谱的方法和装置。 通过应用本发明的实施例的技术方案，考虑到无线通信系统之间的干扰的双向性，当需要引入认知系统时，相应的频率将仅被确定为可用频率 可以同时保证现有系统和认知系统在相应的频率和相邻频率之间达到相应的共存标准，从而确保确定的可用频带保证现有系统的正常运行不受认知干扰 系统，同时确保新引入的认知系统也可以正常工作而不受现任系统的干扰，从而提高无线通信系统的通信质量。

公开(公告)号：US09210726B2

公开(公告)日：2015-12-08

申请号：US14365202

申请日：2012-09-11

申请人： Wenling Bai ,  Zhuo Gao ,  Chenggang Jiang ,  Yuanyuan Li ,  Yu Yang

发明人： Wenling Bai ,  Zhuo Gao ,  Chenggang Jiang ,  Yuanyuan Li ,  Yu Yang

IPC分类号： H04W4/00 ,  H04W74/08 ,  H04W36/00 ,  H04W74/00 ,  H04W36/04

CPC分类号： H04W74/0833 ,  H04B2201/692 ,  H04W36/0055 ,  H04W36/0077 ,  H04W36/04 ,  H04W36/06 ,  H04W74/008 ,  H04W74/085

摘要： Various examples of the present disclosure describe a random access method and device in a CR system. The method includes: generating, by a base station device, a spectrum handover command, wherein the spectrum handover command comprises random access backoff time parameter information; and sending, by the base station device, the spectrum handover command to a user equipment in a cell to instruct the UE to initiate, during a spectrum handover procedure, a random access procedure using the random access backoff time parameter information. According to the various examples of the present disclosure, the random access backoff time parameter information is carried in the spectrum handover command, so that a random access conflict is suppressed during the spectrum handover procedure of the CR system. A large number of UEs that intensively perform random access on a target working frequency are pre-dispersed in time. As such, the delay and the failure probability of the random access on the target working frequency during the spectrum handover procedure are reduced, and thus the failure probability of the spectrum handover and the service interruption time are reduced, so that the user experience of the CR system is improved.

摘要翻译： 本公开的各种示例描述了CR系统中的随机访问方法和设备。 该方法包括：由基站装置生成频谱切换命令，其中频谱切换命令包括随机接入退避时间参数信息; 以及由所述基站装置向所述小区中的用户设备发送所述频谱切换命令，以指示所述UE在频谱切换过程期间使用所述随机接入退避时间参数信息来发起随机接入过程。 根据本公开的各种示例，在频谱切换命令中携带随机接入退避时间参数信息，从而在CR系统的频谱切换过程期间抑制随机接入冲突。 在目标工作频率上集中执行随机访问的大量UE预先分散在时间上。 因此，在频谱切换过程中随机接入对目标工作频率的延迟和故障概率降低，从而降低了频谱切换和业务中断时间的故障概率，使得用户体验 CR系统得到改进。

公开(公告)号：US09282478B2

公开(公告)日：2016-03-08

申请号：US14125083

申请日：2012-03-27

申请人： Chenggang Jiang ,  Yuanyuan Li ,  Wenling Bai ,  Yu Yang

发明人： Chenggang Jiang ,  Yuanyuan Li ,  Wenling Bai ,  Yu Yang

IPC分类号： H04B15/00 ,  H04W24/08 ,  H04W16/14 ,  H04W72/04 ,  H04W72/08

CPC分类号： H04W24/08 ,  H04W16/14 ,  H04W72/0426 ,  H04W72/082

摘要： The embodiments of the present application relate to the technical field of wireless communications, and in particular to a method, system and device for triggering and performing spectrum sensing, used for solving the problem in the prior art that if the sensing period is set too long, a decline of service quality between an authorization system and a cognitive system or even a network paralysis will be caused due to interference; and if the sensing period is set too short, an increase in power consumption of devices and a waste of spectrum resources will be caused. The method for performing spectrum sensing in the embodiments of the present application includes: a sensing node judging whether or not the channel quality has declined to the requirement for performing in-band spectrum sensing; and after determining that the channel quality has declined to the requirement for performing in-band spectrum sensing, the sensing node performing in-band spectrum sensing. By way of applying the embodiments of the present application, the problems of decline of service quality between an authorization system and a cognitive system or even a network paralysis due to interference caused by setting the sensing period too long, or an increase in power consumption of devices and a waste of spectrum resources caused by setting period too short, can be avoided.

摘要翻译： 本申请的实施例涉及无线通信的技术领域，特别涉及一种用于触发和执行频谱感测的方法，系统和设备，用于解决现有技术中的问题，如果感测周期设置得太长 授权系统与认知系统或网络瘫痪之间的服务质量下降将由于干扰而导致; 如果感测周期设定得太短，则会导致设备功耗的增加和频谱资源的浪费。 在本申请的实施例中进行频谱感测的方法包括：感测节点，判断信道质量是否已经下降到执行带内频谱感测的要求; 并且在确定信道质量已经下降到执行带内频谱感测的要求之后，感测节点执行带内频谱感测。 通过应用本申请的实施例，由授权系统和认知系统之间的服务质量下降或者由于设置感测时间过长而导致的网络瘫痪的问题，或增加功耗的增加， 设备浪费频谱资源造成的设置周期太短，可以避免。

公开(公告)号：US20140328325A1

公开(公告)日：2014-11-06

申请号：US14365202

申请日：2012-09-11

申请人： Wenling BAI ,  Zhuo GAO ,  Chenggang JIANG ,  Yuanyuan LI ,  Yu YANG

发明人： Wenling BAI ,  Zhuo GAO ,  Chenggang JIANG ,  Yuanyuan LI ,  Yu YANG

IPC分类号： H04W74/08 ,  H04W36/00 ,  H04W36/04

CPC分类号： H04W74/0833 ,  H04B2201/692 ,  H04W36/0055 ,  H04W36/0077 ,  H04W36/04 ,  H04W36/06 ,  H04W74/008 ,  H04W74/085

摘要： Various examples of the present disclosure describe a random access method and device in a CR system. The method includes: generating, by a base station device, a spectrum handover command, wherein the spectrum handover command comprises random access backoff time parameter information; and sending, by the base station device, the spectrum handover command to a user equipment in a cell to instruct the UE to initiate, during a spectrum handover procedure, a random access procedure using the random access backoff time parameter information. According to the various examples of the present disclosure, the random access backoff time parameter information is carried in the spectrum handover command, so that a random access conflict is suppressed during the spectrum handover procedure of the CR system. A large number of UEs that intensively perform random access on a target working frequency are pre-dispersed in time. As such, the delay and the failure probability of the random access on the target working frequency during the spectrum handover procedure are reduced, and thus the failure probability of the spectrum handover and the service interruption time are reduced, so that the user experience of the CR system is improved.

摘要翻译： 本公开的各种示例描述了CR系统中的随机接入方法和设备。 该方法包括：由基站装置生成频谱切换命令，其中频谱切换命令包括随机接入退避时间参数信息; 以及由所述基站装置向所述小区中的用户设备发送所述频谱切换命令，以指示所述UE在频谱切换过程期间使用所述随机接入退避时间参数信息来发起随机接入过程。 根据本公开的各种示例，在频谱切换命令中携带随机接入退避时间参数信息，从而在CR系统的频谱切换过程期间抑制随机接入冲突。 在目标工作频率上集中执行随机访问的大量UE预先分散在时间上。 因此，在频谱切换过程中随机接入对目标工作频率的延迟和故障概率降低，从而降低了频谱切换和业务中断时间的故障概率，使得用户体验 CR系统得到改进。

公开(公告)号：US09119205B2

公开(公告)日：2015-08-25

申请号：US13701806

申请日：2011-09-28

申请人： Libo Wang ,  Jinling Hu ,  Guojun Xiao ,  Yu Yang ,  Wenling Bai ,  Xueming Pan ,  Qiubin Gao ,  Chenggang Jiang

发明人： Libo Wang ,  Jinling Hu ,  Guojun Xiao ,  Yu Yang ,  Wenling Bai ,  Xueming Pan ,  Qiubin Gao ,  Chenggang Jiang

IPC分类号： H04W72/04 ,  H04W36/06 ,  H04W16/14 ,  H04W48/08 ,  H04W88/08

CPC分类号： H04W72/0453 ,  H04W16/14 ,  H04W36/06 ,  H04W48/08 ,  H04W88/08

摘要： The present application relates to of the communication field and discloses a method, device and system for implementing frequency point switch based on CR. The method comprises: determining, by a cognitive base station, a candidate working frequency point for UE deployed in a cognitive frequency band; then sending to the UE broadcast information which at least carries the candidate working frequency point and instructing the UE to switch from the working frequency point currently used thereby to the candidate working frequency point by way of a frequency point switching command. In this way, the UE deployed in the cognitive frequency band can achieve frequency point switch quickly and accurately according to the instruction from the cognitive base station when an incumbent user accesses the working frequency point currently used by the UE, effectively avoiding interference to the incumbent user and thereby ensuring the service performance and service continuity of the system. The present application also discloses a corresponding device and system.

摘要翻译： 本申请涉及通信领域，并公开了一种基于CR实现频点切换的方法，装置和系统。 该方法包括：由认知基站确定部署在认知频带中的UE的候选工作频点; 然后向UE发送至少携带候选工作频点的广播信息，并且通过频点切换命令指示UE从当前使用的工作频点切换到候选工作频点。 以这种方式，当现有用户访问UE当前使用的工作频率点时，部署在认知频带中的UE可以根据来自认知基站的指令快速准确地进行频点切换，有效地避免对现任用户的干扰 从而确保系统的业务性能和业务连续性。 本申请还公开了相应的设备和系统。

公开(公告)号：US20130190028A1

公开(公告)日：2013-07-25

申请号：US13701806

申请日：2011-09-28

申请人： Libo Wang ,  Jinling Hu ,  Guojun Xiao ,  Yu Yang ,  Wenling Bai ,  Xueming Pan ,  Qiubin Gao ,  Chenggang Jiang

发明人： Libo Wang ,  Jinling Hu ,  Guojun Xiao ,  Yu Yang ,  Wenling Bai ,  Xueming Pan ,  Qiubin Gao ,  Chenggang Jiang

IPC分类号： H04W72/04

CPC分类号： H04W72/0453 ,  H04W16/14 ,  H04W36/06 ,  H04W48/08 ,  H04W88/08

摘要： The present application relates to of the communication field and discloses a method, device and system for implementing frequency point shift based on CR. The method comprises: determining, by a cognitive base station, a candidate working frequency point for UE deployed in a cognitive frequency band; then sending to the UE broadcast information which at least carries the candidate working frequency point and instructing the UE to shift from the working frequency point currently used thereby to the candidate working frequency point by way of a frequency point shift command. In this way, the UE deployed in the cognitive frequency band can achieve frequency point shift quickly and accurately according to the instruction from the cognitive base station when an authorized user accesses the working frequency point currently used by the UE, effectively avoiding interference to the authorized user and thereby ensuring the service performance and service continuity of the system. The present application also discloses a corresponding device and system.

摘要翻译： 本申请涉及通信领域，并公开了一种基于CR实现频点移位的方法，装置和系统。 该方法包括：由认知基站确定部署在认知频带中的UE的候选工作频点; 然后向UE发送至少携带候选工作频点的广播信息，并且通过频点移动命令指示UE从当前使用的工作频点转移到候选工作频点。 以这种方式，当授权用户访问UE当前使用的工作频率点时，部署在认知频带中的UE可以根据来自认知基站的指令来快速准确地实现频点移位，有效地避免对授权的干扰 从而确保系统的业务性能和业务连续性。 本申请还公开了相应的设备和系统。

公开(公告)号：US09071345B2

公开(公告)日：2015-06-30

申请号：US14122618

申请日：2012-03-27

申请人： Wenling Bai ,  Chenggang Jiang ,  Yuanyuan Li ,  Yu Yang

发明人： Wenling Bai ,  Chenggang Jiang ,  Yuanyuan Li ,  Yu Yang

IPC分类号： H04B7/00 ,  H04B1/713 ,  H04W52/02 ,  H04W16/14 ,  H04L27/00 ,  H04L27/26 ,  H04W28/16 ,  H04W84/18 ,  H04B17/27

CPC分类号： H04B1/713 ,  H04B17/27 ,  H04L27/0006 ,  H04L27/2626 ,  H04W16/14 ,  H04W28/16 ,  H04W52/0219 ,  H04W52/0245 ,  H04W84/18 ,  Y02D70/1262 ,  Y02D70/1264 ,  Y02D70/146 ,  Y02D70/164

摘要： The present disclosure provides a method and an apparatus for obtaining an idle spectrum. The method includes: obtaining, by a central management unit, configuration information of a transmitter of an authorized system, and obtaining geographic location information of candidate sense nodes; selecting, by the central management unit, sense nodes from the candidate sense nodes according to the configuration information and the geographic location information, and informing the selected sense nodes to perform spectrum sensing; and receiving, by the central management unit, sensing results of the selected sense nodes, and obtaining information of an idle spectrum according to the sensing results.

摘要翻译： 本公开提供了一种用于获得空闲频谱的方法和装置。 该方法包括：由中央管理单元获取授权系统的发射机的配置信息，并获得候选感知节点的地理位置信息; 根据配置信息和地理位置信息，由中央管理单元选择来自候选感测节点的节点，并通知所选择的感测节点进行频谱感测; 并且由中央管理单元接收所选择的感测节点的感测结果，并且根据感测结果获得空闲频谱的信息。

公开(公告)号：US20140120970A1

公开(公告)日：2014-05-01

申请号：US14125083

申请日：2012-03-27

申请人： Chenggang Jiang ,  Yuanyuan Li ,  Wenling Bai ,  Yu Yang

发明人： Chenggang Jiang ,  Yuanyuan Li ,  Wenling Bai ,  Yu Yang

IPC分类号： H04W24/08

CPC分类号： H04W24/08 ,  H04W16/14 ,  H04W72/0426 ,  H04W72/082

摘要： The embodiments of the present application relate to the technical field of wireless communications, and in particular to a method, system and device for triggering and performing spectrum sensing, used for solving the problem in the prior art that if the sensing period is set too long, a decline of service quality between an authorization system and a cognitive system or even a network paralysis will be caused due to interference; and if the sensing period is set too short, an increase in power consumption of devices and a waste of spectrum resources will be caused. The method for performing spectrum sensing in the embodiments of the present application includes: a sensing node judging whether or not the channel quality has declined to the requirement for performing in-band spectrum sensing; and after determining that the channel quality has declined to the requirement for performing in-band spectrum sensing, the sensing node performing in-band spectrum sensing. By way of applying the embodiments of the present application, the problems of decline of service quality between an authorization system and a cognitive system or even a network paralysis due to interference caused by setting the sensing period too long, or an increase in power consumption of devices and a waste of spectrum resources caused by setting period too short, can be avoided.

摘要翻译： 本申请的实施例涉及无线通信的技术领域，特别涉及一种用于触发和执行频谱感测的方法，系统和设备，用于解决现有技术中的问题，如果感测周期设置得太长 授权系统与认知系统或网络瘫痪之间的服务质量下降将由于干扰而导致; 如果感测周期设定得太短，则会导致设备功耗的增加和频谱资源的浪费。 在本申请的实施例中进行频谱感测的方法包括：感测节点，判断信道质量是否已经下降到执行带内频谱感测的要求; 并且在确定信道质量已经下降到执行带内频谱感测的要求之后，感测节点执行带内频谱感测。 通过应用本申请的实施例，由授权系统和认知系统之间的服务质量下降或者由于设置感测时间过长而导致的网络瘫痪的问题，或增加功耗的增加， 设备浪费频谱资源造成的设置周期太短，可以避免。