公开(公告)号：US20030139197A1

公开(公告)日：2003-07-24

申请号：US10292862

申请日：2002-11-12

Applicant: AT&T Corp.

Inventor： Zoran Kostic ,  Kin K. Leung ,  Hujun Yin

IPC: H04Q007/20

CPC classification number: H04W48/20 ,  H04L47/10 ,  H04L47/122 ,  H04L47/14 ,  H04W24/00 ,  H04W28/08 ,  H04W48/08 ,  H04W48/16 ,  H04W84/12 ,  H04W88/08

Abstract: A network having distribution of access point loading includes access points to which mobile stations can associate themselves based upon access point beacon signal levels and loading levels for the various access points. A mobile station receives beacon signals from various access points and determines a signal strength for the received beacon signals. The mobile station also receives access point loading information from the access points. The mobile station associates with an access point based upon the access point beacon signal strengths and the access point loading information.

Abstract translation: 具有接入点负载分布的网络包括基于接入点信标信号电平和各个接入点的负载电平的移动台能够将自身关联的接入点。 移动台从各种接入点接收信标信号，并确定接收的信标信号的信号强度。 移动台还从接入点接收接入点加载信息。 移动台基于接入点信标强度和接入点加载信息与接入点相关联。

公开(公告)号：US20030152058A1

公开(公告)日：2003-08-14

申请号：US10294854

申请日：2002-11-14

Applicant: AT&T Corp.

Inventor： Leonard Joseph Cimini JR. ,  Zoran Kostic ,  Kin K. Leung ,  Hujun Yin

IPC: H04Q007/24

CPC classification number: H04W28/18 ,  H04L1/0002 ,  H04L1/0007 ,  H04L47/10 ,  H04L47/14 ,  H04L47/263 ,  H04L47/36 ,  H04W28/06 ,  H04W28/22 ,  H04W84/12

Abstract: A method for setting and adjusting MAC fragmentation threshold for IEEE 802.11 networks operating at different data rates is presented. The fragmentation threshold is adjusted based on throughput performance, delay constraints and hidden node influence.

公开(公告)号：US20030134642A1

公开(公告)日：2003-07-17

申请号：US10292863

申请日：2002-11-12

Applicant: AT&T Corp.

Inventor： Zoran Kostic ,  Kin K. Leung ,  Hujun Yin

IPC: H04Q007/20

CPC classification number: H04W48/06 ,  H04L5/023 ,  H04L45/24 ,  H04W48/20

Abstract: A network includes access points that admit/terminate mobile station associations based upon the loading level of the access point and/or whether a mobile station can associate with a further access point. Mobile stations transmit information indicative of the access points to which they can associate. The access points determine whether to admit/terminate a mobile station association based upon access point loading.

Abstract translation: 网络包括基于接入点的加载级别和/或移动台是否可以与另外的接入点相关联来接纳/终止移动台关联的接入点。 移动台发送指示他们可以关联的接入点的信息。 接入点确定是否基于接入点加载来允许/终止移动台关联。

公开(公告)号：US20030133427A1

公开(公告)日：2003-07-17

申请号：US10294928

申请日：2002-11-14

Applicant: AT&T Corp.

Inventor： Leonard Joseph Cimini JR. ,  Zoran Kostic ,  Kin K. Leung ,  Hujun Yin

IPC: H04Q007/24

CPC classification number: H04W28/06 ,  H04L1/18 ,  H04L69/324 ,  H04W84/12

Abstract: A method of shaping data packet transmissions by nodes in a wireless network is presented. Each node sets a maximum limit for MAC service data unit size based on data rate so that maximum transmission times for data packet transmissions by all of the nodes are approximately the same.

Abstract translation: 提出了一种通过无线网络中的节点对数据分组传输进行整形的方法。 每个节点基于数据速率设置MAC服务数据单元大小的最大限制，使得所有节点的数据分组传输的最大传输时间大致相同。

公开(公告)号：US20020019233A1

公开(公告)日：2002-02-14

申请号：US09948816

申请日：2001-09-10

Applicant: AT&T Corp., New York, New York

Inventor： Kin K. Leung ,  Li-Chun Wang

IPC: H04Q007/20

CPC classification number: H04W16/12 ,  H04W16/02 ,  H04W16/24 ,  H04W28/16

Abstract: A method and apparatus for a high-capacity cellular network by improved sectorization and interleaved channel assignment is presented. Data transmission over a cellular network is carried out by implementation of a sectorization scheme, called the Narrow-Beam Quad-sector Cell (NBQC) sectorization scheme, and the corresponding Interleaved Channel Assignments (ICA). The NBQC sectorization scheme calls for each cell of a cellular network to be divided into four sectors, with each sector covered by a 60 degree antenna. Use of the NBQC sectorization scheme allows for implementation of the corresponding ICA, in which assignment of transmission channels to each cell is based on a re-use factor of Nnull2. Accordingly, the interleaved channel assignments allow for the use of the transmission channels in cells which are adjacent in the cellular network.

Abstract translation: 提出了一种通过改进的扇区化和交织的信道分配来实现高容量蜂窝网络的方法和装置。 通过实现称为窄波束四分区小区（NBQC）扇区化方案和相应的交织信道分配（ICA）的扇区化方案来实现蜂窝网络上的数据传输。 NBQC扇区化方案要求将蜂窝网络的每个小区划分为四个扇区，每个扇区由60度天线覆盖。 使用NBQC扇区化方案允许实现相应的ICA，其中对每个小区的传输信道的分配基于N = 2的重用因子。 因此，交织的信道分配允许在蜂窝网络中相邻的小区中使用传输信道。