公开(公告)号：DE60215153T2

公开(公告)日：2007-10-25

申请号：DE60215153

申请日：2002-08-21

Applicant: LUCENT TECHNOLOGIES INC

Inventor： CLAUSSEN HOLGER ,  KARIMI REZA HAMID

IPC: H04L1/00 ,  H03M13/25 ,  H03M13/29 ,  H04L1/06 ,  H04L25/06 ,  H04L27/38

Abstract: A radio telecommunications system is provided operative to communicate digital data symbols with multilevel-coded modulation using higher than quadrature phase shift keying (QPSK) in a multiple-input multiple-output (MIMO) transmit environment. The system comprises a transmitter (1) and a receiver (2). The transmitter (1) contains a means to split the data into a first block of more significant bits of symbols and a second block of less significant bits of symbols which are then separately encoded (a,b) and interleaved (c,c') for modulation by a modulator (d). This transmitter performs multilevel-coded modulation to provide a layered encoding scheme that enables unequal error protection for the transmitted bits. The receiver (2) is operative to receive the multilevel-coded modulated signal via multiple-transmit antennas by iterative determination of soft estimates of bits followed by a hard decision as to what bit was intended. The receiver (2) comprises a first processor (3) operative to provide first soft estimates of bits of the received signal, and a second processor (13) operative to decode the first soft estimates and to provide second soft estimates of the bits. The receiver (2) also comprises a first combiner (11') operative to provide adapted first soft estimates to the second processor (13), the adapted first soft estimates of each bit being dependent upon the respective first soft estimate and a respective previous first soft estimate. The receiver (2) also comprises a second combiner (17) operative to provide third soft estimates back to the first processor for subsequent further decoding, the third soft estimates of each bit being dependent upon the respective second soft estimate and a respective previous second soft estimate.

公开(公告)号：DE60206873T2

公开(公告)日：2006-06-14

申请号：DE60206873

申请日：2002-02-14

Applicant: LUCENT TECHNOLOGIES INC

Inventor： CLAUSSEN HOLGER ,  KARIMI REZA

IPC: H04L25/03 ,  H04L1/00 ,  H04L1/06

Abstract: A radio telecommunications receiver (2) operates to receive digital data symbols or bits by iterative determination of soft estimates of symbols or bits followed by a hard decision as to what symbol or bit was intended. The receiver comprises a first processor (3) operative to provide first soft estimates of symbols or bits of the received signal and a second processor (13) operative to decode the first soft estimates and to provide second soft estimates of the symbols or bits. The receiver also comprises a combiner (17) operative to provide third soft estimates back to the first processor for subsequent further decoding, the third soft estimates of each symbol or bit being dependent upon the respective second soft estimate and a respective previous second soft estimate.

公开(公告)号：DE602007002803D1

公开(公告)日：2009-11-26

申请号：DE602007002803

申请日：2007-08-20

Applicant: LUCENT TECHNOLOGIES INC

Inventor： HO LESTER TSE WEE ,  CLAUSSEN HOLGER ,  SAMUEL LOUIS GWYN

IPC: H04W24/02

公开(公告)号：DE60206873D1

公开(公告)日：2005-12-01

申请号：DE60206873

申请日：2002-02-14

Applicant: LUCENT TECHNOLOGIES INC

Inventor： CLAUSSEN HOLGER ,  KARIMI REZA

IPC: H04L1/00 ,  H04L1/06 ,  H04L25/03

Abstract: A radio telecommunications receiver (2) operates to receive digital data symbols or bits by iterative determination of soft estimates of symbols or bits followed by a hard decision as to what symbol or bit was intended. The receiver comprises a first processor (3) operative to provide first soft estimates of symbols or bits of the received signal and a second processor (13) operative to decode the first soft estimates and to provide second soft estimates of the symbols or bits. The receiver also comprises a combiner (17) operative to provide third soft estimates back to the first processor for subsequent further decoding, the third soft estimates of each symbol or bit being dependent upon the respective second soft estimate and a respective previous second soft estimate.

公开(公告)号：DE60215153D1

公开(公告)日：2006-11-16

申请号：DE60215153

申请日：2002-08-21

Applicant: LUCENT TECHNOLOGIES INC

Inventor： CLAUSSEN HOLGER ,  KARIMI REZA HAMID

IPC: H04L1/00 ,  H03M13/25 ,  H03M13/29 ,  H04L1/06 ,  H04L25/06 ,  H04L27/38

Abstract: A radio telecommunications system is provided operative to communicate digital data symbols with multilevel-coded modulation using higher than quadrature phase shift keying (QPSK) in a multiple-input multiple-output (MIMO) transmit environment. The system comprises a transmitter (1) and a receiver (2). The transmitter (1) contains a means to split the data into a first block of more significant bits of symbols and a second block of less significant bits of symbols which are then separately encoded (a,b) and interleaved (c,c') for modulation by a modulator (d). This transmitter performs multilevel-coded modulation to provide a layered encoding scheme that enables unequal error protection for the transmitted bits. The receiver (2) is operative to receive the multilevel-coded modulated signal via multiple-transmit antennas by iterative determination of soft estimates of bits followed by a hard decision as to what bit was intended. The receiver (2) comprises a first processor (3) operative to provide first soft estimates of bits of the received signal, and a second processor (13) operative to decode the first soft estimates and to provide second soft estimates of the bits. The receiver (2) also comprises a first combiner (11') operative to provide adapted first soft estimates to the second processor (13), the adapted first soft estimates of each bit being dependent upon the respective first soft estimate and a respective previous first soft estimate. The receiver (2) also comprises a second combiner (17) operative to provide third soft estimates back to the first processor for subsequent further decoding, the third soft estimates of each bit being dependent upon the respective second soft estimate and a respective previous second soft estimate.

公开(公告)号：WO2008033259A3

公开(公告)日：2008-05-02

申请号：PCT/US2007019486

申请日：2007-09-07

Applicant: LUCENT TECHNOLOGIES INC ,  CLAUSSEN HOLGER ,  HO LESTER TSE WEE ,  SAMUEL LOUIS GWYN

Inventor： CLAUSSEN HOLGER ,  HO LESTER TSE WEE ,  SAMUEL LOUIS GWYN

IPC: H04W36/08 ,  H04W36/14 ,  H04W36/36 ,  H04W48/20

CPC classification number: H04W36/24 ,  H04B17/318 ,  H04B17/382 ,  H04W36/365 ,  H04W84/045

Abstract: A communications system (1) includes an underlay network (2), which a cellular communications network implemented using UMTS technology, and an overlay home cell (8) set up by a user using a base station router (7), or other similar access device. A call may be transferred from the home cell (8) to a cell of the underlay network (2) and vice versa. If these operate at different tariffs, the user may find that handover between them results in extra charges for an on-going call. The user terminal (10) is enabled so as to allow the user to determine if handover should be performed, and thus retain control of costs incurred in making a call. The user terminal (10) may give an alert if there is a risk of imminent handover, allowing the user to take avoiding action if desired, or the user may configure preferences to control under what conditions handover may be performed.

Abstract translation: 通信系统（1）包括使用UMTS技术实现的蜂窝通信网络的底层网络（2）和由用户使用基站路由器（7）建立的覆盖家庭小区（8）或其他类似接入 设备。 呼叫可以从家庭小区（8）传送到底层网络（2）的小区，反之亦然。 如果这些操作在不同的费率下，用户可能会发现它们之间的切换导致正在进行的呼叫的额外费用。 用户终端（10）被启用以允许用户确定是否应当执行切换，并且因此保持对进行呼叫的费用的控制。 如果存在即将发生的切换的风险，则用户终端（10）可以给出警报，允许用户在需要时采取避免动作，或者用户可以配置在什么情况下可以执行切换的控制的偏好。

公开(公告)号：WO2007139680A3

公开(公告)日：2008-04-03

申请号：PCT/US2007011366

申请日：2007-05-11

Applicant: LUCENT TECHNOLOGIES INC ,  CLAUSSEN HOLGER ,  HO LESTER TSE WEE ,  KARIMI HAMID REZA ,  SAMUEL LOUIS GWYN

Inventor： CLAUSSEN HOLGER ,  HO LESTER TSE WEE ,  KARIMI HAMID REZA ,  SAMUEL LOUIS GWYN

IPC: H04W16/32

CPC classification number: H04W52/244 ,  H04W16/32 ,  H04W52/143

Abstract: A transmit power control technique within a wireless communication system includes adjusting a transmit power used by a picocell base station unit based upon a position of the picocell within a macrocell. When a picocell base station unit is located relatively close to a macrocell base station or center of the macrocell, the transmit power of the picocell base station unit is increased to avoid downlink interference from the macrocell base station for mobile stations communicating within the picocell. When a picocell base station unit is located relatively close to an edge of a macrocell, the transmit power of the picocell base station is decreased to avoid interference caused by the picocell base station unit for mobile stations communicating within the macrocell in the vicinity of the picocell. In a disclosed example determined downlink interference levels provide an indication of the position of the picocell within the macrocell and provide an indication of how to automatically adjust the transmit power of the picocell base station unit.

Abstract translation: 无线通信系统内的发射功率控制技术包括：基于微蜂窝小区中的位置来调整微微小区基站单元使用的发射功率。 当微微小区基站单元相对靠近宏小区基站或宏小区的中心位置时，增加微微小区基站单元的发射功率，以避免来自宏小区基站的用于在微微小区内通信的移动站的下行干扰。 当微微小区基站单元位于相对靠近宏小区的边缘时，微微小区基站的发射功率减小，以避免由微微小区基站单元对微微小区附近的宏小区内通信的移动站造成的干扰 。 在公开的示例中，确定的下行链路干扰电平提供微蜂窝在宏小区内的位置的指示，并提供如何自动调整微微小区基站单元的发射功率的指示。

公开(公告)号：WO2008076219A3

公开(公告)日：2008-08-07

申请号：PCT/US2007024847

申请日：2007-12-04

Applicant: LUCENT TECHNOLOGIES INC ,  CLAUSSEN HOLGER ,  HO LESTER T W ,  SAMUEL LOUIS G

Inventor： CLAUSSEN HOLGER ,  HO LESTER T W ,  SAMUEL LOUIS G

IPC: H04B7/005 ,  H04W16/32 ,  H04W52/14

CPC classification number: H04W52/146 ,  H04W16/32 ,  H04W52/244 ,  H04W52/367

Abstract: A method of communicating in a picocell within a macrocell includes automatically setting an uplink transmit power of a mobile station to avoid uplink interference between the picocell and the macrocell. A disclosed example includes determining an allowable interference from the picocell to the macrocell. A path-loss between a mobile station and a macrocell is determined. An uplink transmit power of the mobile station for communicating in the picocell is determined based upon the determined allowable interference and the determined path-loss.

Abstract translation: 在宏小区内的微微小区中通信的方法包括自动设置移动台的上行发射功率，以避免微微小区和宏小区之间的上行干扰。 公开的示例包括确定从微微小区到宏小区的容许干扰。 确定移动站和宏小区之间的路径损耗。 基于所确定的容许干扰和确定的路径损耗来确定用于在微微小区中进行通信的移动站的上行链路发射功率。

公开(公告)号：WO2008066726A3

公开(公告)日：2008-07-31

申请号：PCT/US2007024145

申请日：2007-11-16

Applicant: LUCENT TECHNOLOGIES INC ,  CLAUSSEN HOLGER ,  HO LESTER TSE WEE ,  KENNEDY IRWIN O ,  MA ZHENGXIANG

Inventor： CLAUSSEN HOLGER ,  HO LESTER TSE WEE ,  KENNEDY IRWIN O ,  MA ZHENGXIANG

IPC: H04W36/04 ,  H04W48/12

CPC classification number: H04W36/04 ,  H04W4/06 ,  H04W36/0083 ,  H04W48/12

Abstract: A wireless communication technique provides mobility for a mobile station (52) to communicate with an overlay network device (40), which is within a coverage area (34) of an underlay network device (24), when the mobile station (52) is within a coverage area (42) of both devices. The overlay network device (40) broadcasts at least two downlink channels. A cell code (e.g., a scrambling code or pseudo noise offset) of a first one of the downlink channels identifies an overlay network device (40) exclusively. The mobile station (52) can detect the first downlink channel responsive to an indication of the exclusive cell code from the underlay network device. A second one of the downlink channels allows for subsequent, ongoing communications between the mobile station and the overlay network device.

Abstract translation: 当移动台（52）是移动台（52）时，无线通信技术为移动台（52）提供移动性以与覆盖网络设备（24）的覆盖区域（34）内的覆盖网络设备 在两个设备的覆盖区域（42）内。 覆盖网络设备（40）广播至少两个下行链路信道。 第一个下行链路信道的小区代码（例如，扰码或伪噪声偏移）专门识别覆盖网络设备（40）。 移动台（52）可以响应于来自底层网络设备的专用小区代码的指示来检测第一下行链路信道。 下行链路信道中的第二个允许移动台和覆盖网络设备之间的后续正在进行的通信。

公开(公告)号：WO2007133432A3

公开(公告)日：2008-01-10

申请号：PCT/US2007010326

申请日：2007-04-27

Applicant: LUCENT TECHNOLOGIES INC ,  CLAUSSEN HOLGER ,  HO LESTER TSE WEE ,  KARIMI HAMID REZA ,  SAMUEL LOUIS GWYN

Inventor： CLAUSSEN HOLGER ,  HO LESTER TSE WEE ,  KARIMI HAMID REZA ,  SAMUEL LOUIS GWYN

IPC: H04L12/28 ,  H04W74/08

CPC classification number: H04W72/082 ,  H04B1/10 ,  H04W74/085

Abstract: The present invention provides methods of managing interference in a wireless communication system. The methods may include receiving information indicative of a portion of an interfering signal (120) received by a first wireless communication device, decoding the portion of the interfering signal (120), and providing at least one back-off instruction destined for a second wireless communication device (115) based on the decoded portion of the interfering signal (120).

Abstract translation: 本发明提供了一种管理无线通信系统中的干扰的方法。 所述方法可以包括接收指示由第一无线通信设备接收的干扰信号（120）的一部分的信息，对干扰信号（120）的部分进行解码，以及提供至少一个指向第二无线 通信设备（115）基于干扰信号（120）的解码部分。