公开(公告)号：EP1881635A2

公开(公告)日：2008-01-23

申请号：EP07252871.4

申请日：2007-07-19

Applicant: STMicroelectronics, Inc

Inventor： Hu, Wendong

IPC: H04L1/00 ,  H04L12/28 ,  H04Q7/36

CPC classification number: H04W72/0406 ,  H04B7/2606 ,  H04W16/26 ,  H04W84/047

Abstract: A hierarchical WRAN includes a relay station (RS) possessing dual roles. A RS acts from the perspective of a base station (BS) as a consumer premise equipment (CPE) terminal just as any other first tier CPE terminal. Simultaneously, the RS, from the perspective of other second tier CPEs, acts as a BS providing all of the functional capabilities of a BS. The RS includes dual medium access control (MAC) functions in which a first MAC function serves to interface the RS with the BS while the second MAC function serves to interface the RS with the at least one CPE terminal. The RS further includes a convergence layer that maps, at the RS, the first MAC to the second MAC. The dual MAC capability of the RS enables the RS to pipeline frame transmission in both single and multi-channel operations.

Abstract translation: 分级WRAN包括具有双重角色的中继站（RS）。 作为消费者住宅设备（CPE）终端，RS作为任何其他第一层CPE终端从基站（BS）的角度起作用。 同时，从其他第二层CPE的角度看，RS用作提供BS的所有功能能力的BS。 RS包括双介质访问控制（MAC）功能，其中第一MAC功能用于将RS与BS接口，而第二MAC功能用于将RS与至少一个CPE终端进行接口。 RS还包括在RS处将第一MAC映射到第二MAC的会聚层。 RS的双MAC能力使得RS能够在单通道和多通道操作中管线帧传输。

公开(公告)号：EP1944989A1

公开(公告)日：2008-07-16

申请号：EP08150128.0

申请日：2008-01-09

Applicant: STMicroelectronics, Inc

Inventor： Chu, Liwen ,  Hu, Wendong ,  Vlantis, George

IPC: H04Q7/36 ,  H04B1/713 ,  H04B7/26

CPC classification number: H04B1/715 ,  H04B1/7143 ,  H04B2001/7154 ,  H04W84/14

Abstract: A Dynamic Frequency Hopping Community (DFH Community) is formed from a plurality of Wireless Regional Area Network (WRAN) cells wherein each of the plurality of WRAN cells within the DFH Community is a one-hop neighbor of the leader cell. The leader cell sets and distributes a hopping pattern for use among the WRAN cells based on, in part, the number of usable channels and whether a WRAN cell is shared by two groups in the DFH Community.

Abstract translation: 动态跳频共同体（DFH Community）由多个无线区域网（WRAN）小区形成，其中DFH群内的多个WRAN小区中的每一个是前导小区的一跳邻居。 引导单元基于部分可用信道的数量以及DFH小区中的两个组是否共享一个WRAN信元，在WRAN信元之间设置和分配跳频模式以供在WRAN信元之间使用。

公开(公告)号：EP1881635B1

公开(公告)日：2019-08-28

申请号：EP07252871.4

申请日：2007-07-19

Applicant: STMicroelectronics, Inc.

Inventor： Hu, Wendong

IPC: H04B7/26 ,  H04W72/04 ,  H04W16/26 ,  H04W84/04

公开(公告)号：EP1944996A2

公开(公告)日：2008-07-16

申请号：EP08150130.6

申请日：2008-01-09

Applicant: STMicroelectronics, Inc

Inventor： Hu, Wendong

IPC: H04Q7/38

CPC classification number: H04W72/085 ,  H04W16/14 ,  H04W72/082

Abstract: In order to satisfy the conflicting requirements for spectrum sensing and QoS of data transmission, it is highly desirable for a cognitive radio system, e.g. IEEE 802.22 WRAN, to perform spectrum sensing and data transmission simultaneously. Embodiments of the invention address critical issues of self-interference generated from a transmission unit to the co-located sensing unit when the simultaneous sensing and data transmission technique is applied. A number of interference mitigation techniques are described and analyses are given.

Abstract translation: 为了满足数据传输的频谱感测和QoS的冲突要求，非常希望认知无线电系统，例如， IEEE 802.22 WRAN，同时进行频谱感测和数据传输。 当应用同时感测和数据传输技术时，本发明的实施例解决了从传输单元到共处感测单元产生的自干扰的关键问题。 描述了许多干扰减轻技术，并给出了分析。

公开(公告)号：EP1881635A3

公开(公告)日：2013-12-25

申请号：EP07252871.4

申请日：2007-07-19

Applicant: STMicroelectronics, Inc.

Inventor： Hu, Wendong

IPC: H04L1/00 ,  H04L12/28

CPC classification number: H04W72/0406 ,  H04B7/2606 ,  H04W16/26 ,  H04W84/047

Abstract: A hierarchical WRAN includes a relay station (RS) possessing dual roles. A RS acts from the perspective of a base station (BS) as a consumer premise equipment (CPE) terminal just as any other first tier CPE terminal. Simultaneously, the RS, from the perspective of other second tier CPEs, acts as a BS providing all of the functional capabilities of a BS. The RS includes dual medium access control (MAC) functions in which a first MAC function serves to interface the RS with the BS while the second MAC function serves to interface the RS with the at least one CPE terminal. The RS further includes a convergence layer that maps, at the RS, the first MAC to the second MAC. The dual MAC capability of the RS enables the RS to pipeline frame transmission in both single and multi-channel operations.

公开(公告)号：EP1914942B1

公开(公告)日：2011-01-26

申请号：EP07254157.6

申请日：2007-10-19

Applicant: STMicroelectronics, Inc.

Inventor： Chu, Liwen ,  Hu, Wendong ,  Vlantis, George

IPC: H04W16/14

CPC classification number: H04W48/12

公开(公告)号：EP1914942A1

公开(公告)日：2008-04-23

申请号：EP07254157.6

申请日：2007-10-19

Applicant: STMicroelectronics, Inc.

Inventor： Chu, Liwen ,  Hu, Wendong ,  Vlantis, George

IPC: H04L12/28 ,  H04L12/56

CPC classification number: H04W48/12

Abstract: A first base station is associated with a first quiet period, and a second base station is associated with a second quiet period. The quiet periods are coordinated so that an amount of overlap between the quiet periods is acceptable. For example, the quiet periods could be coordinated so that no overlap exists between the quiet periods. During the first quiet period, the first base station and/or an associated device (such as a CPE served by the first base station) performs in-band sensing to detect wireless devices that use a first frequency or channel also used by the first base station. During the second quiet period, the first base station and/or a coordinate device (such as a CPE served by the first base station and assisting the second base station) performs out-band sensing to detect wireless devices that use a second frequency or channel also used by the second base station.

Abstract translation: 第一基站与第一静默周期相关联，以及第二基站与第二静默期相关联。 在静默期是协调的静默周期之间的重叠量，从而做是可以接受的。 例如，静默期可被协调，以便做的安静时间段之间不存在重叠。 在第一静默期间，所述第一基站和/或相关联的设备（搜索由第一基站服务的CPE）执行的带内感测以检测无线设备并使用因此用于由第一基站以第一频率或信道 站。 在第二静默期间，所述第一基站和/或一个坐标设备（搜索由第一基站服务的CPE和协助所述第二基站）执行的带外感测来检测无线设备并使用第二频率或信道 如此使用由所述第二基站。