公开(公告)号：US10104582B2

公开(公告)日：2018-10-16

申请号：US14456899

申请日：2014-08-11

Applicant: CISCO TECHNOLOGY, INC.

Inventor： Takahito Yoshizawa ,  Indermeet Singh Gandhi ,  Swaminathan A. Anantha ,  Yuyong Zhang

IPC: H04W36/00 ,  H04W36/04 ,  H04W84/04 ,  H04W88/10 ,  H04W92/20

Abstract: In an example, a wireless communication system and apparatuses thereof are described. In an example long-term evolution (LTE) network, a first base station hands over a connection to a second base station. The first base station may be a (femto) home eNodeB (HeNB) or (macro) eNodeB. The second base station may also be a HeNB or eNodeB connected to a different gateway. The first base station may send “Handover Request” on an X2 connection, identifying the gateway that the second base station is connected to as the correct gateway. After sending a “Handover Request Acknowledgement,” the second base station correctly establishes a tunnel to a connected gateway device.

公开(公告)号：US09288804B2

公开(公告)日：2016-03-15

申请号：US14261566

申请日：2014-04-25

Applicant: Cisco Technology, Inc.

Inventor： Takahito Yoshizawa ,  Raymond Kwan

IPC: G01R31/08 ,  H04W72/04

CPC classification number: H04W72/0426 ,  H04L5/0007 ,  H04W72/042 ,  H04W72/0446 ,  H04W72/0486 ,  H04W92/20

Abstract: An example method for facilitating almost blank sub-frame (ABS) based orthogonal resource allocation in a wireless network environment is provided and includes receiving at a serving Evolved Universal Terrestrial Radio Access Network (E-UTRAN) nodeB (eNB), ABS patterns from a plurality of neighboring eNBs in a orthogonal frequency-division multiplexing based network, each neighboring eNB transmitting a separate ABS pattern, setting a maximum duty cycle of physical downlink control channel in a frame to be transmitted by the serving eNB within its serving cell, and computing an optimal ABS pattern at the serving eNB subject to the maximum duty cycle and based on the ABS patterns received from the plurality of neighboring eNBs. In specific embodiments, computing the optimal ABS pattern includes identifying neighboring eNBs transmitting at each sub-frame of the frame, identifying sub-frames transmitted by a least number of neighboring eNBs, and selecting each identified sub-frame for configuring as an ABS.

Abstract translation: 提供了一种用于在无线网络环境中促进几乎空白子帧（ABS）的正交资源分配的示例性方法，并且包括在服务演进的通用陆地无线电接入网络（E-UTRAN）节点B（eNB）处接收来自 在正交频分复用的网络中的多个相邻eNB，每个相邻eNB发送单独的ABS模式，在由服务eNB在其服务小区内发送的帧中设置物理下行链路控制信道的最大占空比，以及计算 在最大占空比下的服务eNB处的最佳ABS模式，并且基于从多个相邻eNB接收到的ABS模式。 在具体实施例中，计算最佳ABS模式包括识别在帧的每个子帧处发送的邻居eNB，识别由最少数量的相邻eNB发送的子帧，并且选择每个识别的子帧以用于配置为ABS。

公开(公告)号：US20150312901A1

公开(公告)日：2015-10-29

申请号：US14261566

申请日：2014-04-25

Applicant: CISCO TECHNOLOGY, INC.

Inventor： Takahito Yoshizawa ,  Raymond Kwan

IPC: H04W72/04

CPC classification number: H04W72/0426 ,  H04L5/0007 ,  H04W72/042 ,  H04W72/0446 ,  H04W72/0486 ,  H04W92/20

Abstract: An example method for facilitating almost blank sub-frame (ABS) based orthogonal resource allocation in a wireless network environment is provided and includes receiving at a serving Evolved Universal Terrestrial Radio Access Network (E-UTRAN) nodeB (eNB), ABS patterns from a plurality of neighboring eNBs in a orthogonal frequency-division multiplexing based network, each neighboring eNB transmitting a separate ABS pattern, setting a maximum duty cycle of physical downlink control channel in a frame to be transmitted by the serving eNB within its serving cell, and computing an optimal ABS pattern at the serving eNB subject to the maximum duty cycle and based on the ABS patterns received from the plurality of neighboring eNBs. In specific embodiments, computing the optimal ABS pattern includes identifying neighboring eNBs transmitting at each sub-frame of the frame, identifying sub-frames transmitted by a least number of neighboring eNBs, and selecting each identified sub-frame for configuring as an ABS.

公开(公告)号：US09398586B2

公开(公告)日：2016-07-19

申请号：US14261812

申请日：2014-04-25

Applicant: Cisco Technology, Inc.

Inventor： Takahito Yoshizawa ,  Raymond Kwan

IPC: G01R31/08 ,  H04W72/04

CPC classification number: H04W72/0426 ,  H04L5/0007 ,  H04W72/042 ,  H04W72/0446 ,  H04W72/0486 ,  H04W92/20

Abstract: An example method for facilitating almost blank sub-frame (ABS) based orthogonal resource allocation in a wireless network environment is provided and includes receiving at a serving Evolved Universal Terrestrial Radio Access Network (E-UTRAN) nodeB (eNB), ABS patterns from a plurality of neighboring eNBs in a orthogonal frequency-division multiplexing based network, each neighboring eNB transmitting a separate ABS pattern, setting a maximum duty cycle of physical downlink control channel in a frame to be transmitted by the serving eNB within its serving cell, and computing an optimal ABS pattern at the serving eNB subject to the maximum duty cycle and based on the ABS patterns received from the plurality of neighboring eNBs. In specific embodiments, computing the optimal ABS pattern includes identifying neighboring eNBs transmitting at each sub-frame of the frame, identifying sub-frames transmitted by a least number of neighboring eNBs, and selecting each identified sub-frame for configuring as an ABS.

公开(公告)号：US10757610B2

公开(公告)日：2020-08-25

申请号：US16058798

申请日：2018-08-08

Applicant: Cisco Technology, Inc.

Inventor： Takahito Yoshizawa ,  Indermeet Singh Gandhi ,  Swaminathan A. Anantha ,  Yuyong Zhang

IPC: H04W36/00 ,  H04W88/10 ,  H04W36/04 ,  H04W84/04 ,  H04W92/20

Abstract: In an example, a wireless communication system and apparatuses thereof are described. In an example long-term evolution (LTE) network, a first base station hands over a connection to a second base station. The first base station may be a (femto) home eNodeB (HeNB) or (macro) eNodeB. The second base station may also be a HeNB or eNodeB connected to a different gateway. The first base station may send “Handover Request” on an X2 connection, identifying the gateway that the second base station is connected to as the correct gateway. After sending a “Handover Request Acknowledgement,” the second base station correctly establishes a tunnel to a connected gateway device.

公开(公告)号：US10039095B2

公开(公告)日：2018-07-31

申请号：US15148602

申请日：2016-05-06

Applicant: CISCO TECHNOLOGY, INC.

Inventor： Takahito Yoshizawa ,  Raymond Kwan

IPC: G01R31/08 ,  H04W72/04 ,  H04L5/00 ,  H04W92/20

CPC classification number: H04W72/0426 ,  H04L5/0007 ,  H04W72/042 ,  H04W72/0446 ,  H04W72/0486 ,  H04W92/20

Abstract: An example method for facilitating almost blank sub-frame (ABS) based orthogonal resource allocation in a wireless network environment is provided and includes receiving at a serving Evolved Universal Terrestrial Radio Access Network (E-UTRAN) nodeB (eNB), ABS patterns from a plurality of neighboring eNBs in a orthogonal frequency-division multiplexing based network, each neighboring eNB transmitting a separate ABS pattern, setting a maximum duty cycle of physical downlink control channel in a frame to be transmitted by the serving eNB within its serving cell, and computing an optimal ABS pattern at the serving eNB subject to the maximum duty cycle and based on the ABS patterns received from the plurality of neighboring eNBs. In specific embodiments, computing the optimal ABS pattern includes identifying neighboring eNBs transmitting at each sub-frame of the frame, identifying sub-frames transmitted by a least number of neighboring eNBs, and selecting each identified sub-frame for configuring as an ABS.

公开(公告)号：US20160255623A1

公开(公告)日：2016-09-01

申请号：US15148602

申请日：2016-05-06

Applicant: CISCO TECHNOLOGY, INC.

Inventor： Takahito Yoshizawa ,  Raymond Kwan

IPC: H04W72/04 ,  H04L5/00

CPC classification number: H04W72/0426 ,  H04L5/0007 ,  H04W72/042 ,  H04W72/0446 ,  H04W72/0486 ,  H04W92/20

Abstract: An example method for facilitating almost blank sub-frame (ABS) based orthogonal resource allocation in a wireless network environment is provided and includes receiving at a serving Evolved Universal Terrestrial Radio Access Network (E-UTRAN) nodeB (eNB), ABS patterns from a plurality of neighboring eNBs in a orthogonal frequency-division multiplexing based network, each neighboring eNB transmitting a separate ABS pattern, setting a maximum duty cycle of physical downlink control channel in a frame to be transmitted by the serving eNB within its serving cell, and computing an optimal ABS pattern at the serving eNB subject to the maximum duty cycle and based on the ABS patterns received from the plurality of neighboring eNBs. In specific embodiments, computing the optimal ABS pattern includes identifying neighboring eNBs transmitting at each sub-frame of the frame, identifying sub-frames transmitted by a least number of neighboring eNBs, and selecting each identified sub-frame for configuring as an ABS.

公开(公告)号：US20160044544A1

公开(公告)日：2016-02-11

申请号：US14456899

申请日：2014-08-11

Applicant: CISCO TECHNOLOGY, INC.

Inventor： Takahito Yoshizawa ,  Indermeet Singh Gandhi ,  Swaminathan A. Anantha ,  Yuyong Zhang

IPC: H04W36/00 ,  H04W36/08 ,  H04W36/14

CPC classification number: H04W36/0016 ,  H04W36/04 ,  H04W84/045 ,  H04W88/10 ,  H04W92/20

Abstract: In an example, a wireless communication system and apparatuses thereof are described. In an example long-term evolution (LTE) network, a first base station hands over a connection to a second base station. The first base station may be a (femto) home eNodeB (HeNB) or (macro) eNodeB. The second base station may also be a HeNB or eNodeB connected to a different gateway. The first base station may send “Handover Request” on an X2 connection, identifying the gateway that the second base station is connected to as the correct gateway. After sending a “Handover Request Acknowledgement,” the second base station correctly establishes a tunnel to a connected gateway device.

Abstract translation: 在一个示例中，描述了无线通信系统及其装置。 在长期演进（LTE）网络的示例中，第一基站切换到第二基站的连接。 第一基站可以是（毫微微）家庭eNodeB（HeNB）或（宏）eNodeB。 第二基站也可以是连接到不同网关的HeNB或eNodeB。 第一基站可以在X2连接上发送“切换请求”，将第二基站连接的网关标识为正确的网关。 在发送“切换请求确认”之后，第二基站正确地建立到连接的网关设备的隧道。

公开(公告)号：US20150312902A1

公开(公告)日：2015-10-29

申请号：US14261812

申请日：2014-04-25

Applicant: Cisco Technology, Inc.

Inventor： Takahito Yoshizawa ,  Raymond Kwan

IPC: H04W72/04

CPC classification number: H04W72/0426 ,  H04L5/0007 ,  H04W72/042 ,  H04W72/0446 ,  H04W72/0486 ,  H04W92/20

Abstract: An example method for facilitating almost blank sub-frame (ABS) based orthogonal resource allocation in a wireless network environment is provided and includes receiving at a serving Evolved Universal Terrestrial Radio Access Network (E-UTRAN) nodeB (eNB), ABS patterns from a plurality of neighboring eNBs in a orthogonal frequency-division multiplexing based network, each neighboring eNB transmitting a separate ABS pattern, setting a maximum duty cycle of physical downlink control channel in a frame to be transmitted by the serving eNB within its serving cell, and computing an optimal ABS pattern at the serving eNB subject to the maximum duty cycle and based on the ABS patterns received from the plurality of neighboring eNBs. In specific embodiments, computing the optimal ABS pattern includes identifying neighboring eNBs transmitting at each sub-frame of the frame, identifying sub-frames transmitted by a least number of neighboring eNBs, and selecting each identified sub-frame for configuring as an ABS.

Abstract translation: 提供了一种用于在无线网络环境中促进几乎空白子帧（ABS）的正交资源分配的示例性方法，并且包括在服务演进的通用陆地无线电接入网络（E-UTRAN）节点B（eNB）处接收来自 在正交频分复用的网络中的多个相邻eNB，每个相邻eNB发送单独的ABS模式，在由服务eNB在其服务小区内发送的帧中设置物理下行链路控制信道的最大占空比，以及计算 在最大占空比下的服务eNB处的最佳ABS模式，并且基于从多个相邻eNB接收到的ABS模式。 在具体实施例中，计算最佳ABS模式包括识别在帧的每个子帧处发送的邻居eNB，识别由最少数量的相邻eNB发送的子帧，并且选择每个识别的子帧以用于配置为ABS。