公开(公告)号：EP1039656A3

公开(公告)日：2003-10-29

申请号：EP00301872.8

申请日：2000-03-07

Applicant: LUCENT TECHNOLOGIES INC.

Inventor： Jiang, Frances ,  Kamel, Raafat Edward ,  Li, Quinn ,  Salvarani, Alexandro Federico ,  Weaver, Carl Francis

IPC: H04B7/005

CPC classification number: H04W52/265 ,  H04W52/12 ,  H04W52/241 ,  H04W52/267 ,  H04W52/36 ,  H04W52/40

Abstract: A method of controlling the power in a wireless communication system (200). In one embodiment of the invention, a base station (210) determines the information rate of a signal to be transmitted (270) to a mobile station (220), and obtains the variable power control scaling factor (245) based on this information rate. The base station (210) then transmits the variable power control scaling factor (245) to the mobile station (220). The mobile station (220) determines a target signal quality measurement (130) for a received signal (270) from the base station (220), such as a target E b /N 0 (130), and scales the target E b /N 0 (130) by the variable power control scaling factor (245). The mobile station (220) also obtains an information rate scaling factor based on the information rate of the received signal (270), and further scales the target E b /N 0 by this information rate scaling factor. The mobile station (220) then compares the target E b /N 0 (130) to a measured E b /N 0 (160) of the received signal (270). An increase in power of the received signal (270) is requested when the measured E b /N 0 (160) of the received signal (270) is smaller than the scaled E b /N 0 (260). A decrease in power of the received signal (270) is requested when the measured E b /N 0 (160) of the received signal (270) is larger than the scaled E b /N 0 (260). Providing the variable power control scaling factor (245) to the mobile station (220) allows frames having an information rate lower than the full rate to be transmitted at a power even lower than the power of a frame having an information rate equal to the full rate times the information scaling factor.

Abstract translation: 控制无线通信系统（200）的功率的方法。 在本发明的基站的一个实施例（210）确定的地雷的信号的信息速率为反式mitted（270）向移动站（220），并获得所述可变功率控制缩放因子基于该信息速率（245） ， 基站（210）然后将所可变功率控制缩放因子（245）到移动站（220）。 移动站（220）bestimmt的目标信号质量测量（130），用于从所述基站（220）接收到的信号（270）：如的Eb / N0（130）的靶和缩放目标Eb / N0（130 ）由可变功率控制缩放因子（245）。 移动站（220）从而获得基于接收到的信号（270），并且进一步尺度目标Eb / N0的信息速率由该信息率的缩放因子对速率的比例因子信息。 移动站（220），则比较所述目标的Eb / N0（130）连接到测量的Eb / N0的接收信号（270）的（160）。 在接收信号（270）的功率的增加请求当接收到的信号（270）的测得的Eb / N0（160）比所述经缩放的Eb / N0（260）小。 在接收信号（270）的功率的降低请求当接收到的信号（270）的测得的Eb / N0（160）比所述经缩放的Eb / N0（260）大。 提供所述可变功率控制缩放因子（245）到移动站（220）允许具有比全速率较低的信息速率的帧是在一个功率反mitted比具有在信息速率等于全的帧的功率更低 率乘以换算系数的信息。

公开(公告)号：EP1059736A3

公开(公告)日：2003-08-06

申请号：EP00304774.3

申请日：2000-06-06

Applicant: LUCENT TECHNOLOGIES INC.

Inventor： Kumar, Sarath ,  Li, Quinn ,  Wu, Xiao C.

IPC: H04B7/005

CPC classification number: H04W52/143 ,  H04W52/146 ,  H04W52/40 ,  H04W52/50 ,  H04W52/54

Abstract: In a wireless communications system, a base station transmits power control signals (e.g., the power control bits of a power control sub-channel) to a mobile using a forward-link channel that is decoupled from all other signals transmitted from that base station to that mobile. For example, the decoupled forward-link channel may be a common power control channel. The mobile then uses the power control signals received in the decoupled forward-link channel to control its power level for transmitting one or more reverse-link channels to the base station. The ability of base stations to use decoupled forward-link channels in order to transmit their power control signals to a mobile enables a mobile to operate with different active sets for the forward and reverse links. This enables forward-link data traffic to be implemented using a simplex mode, even when the mobile is operating in soft handoff in the reverse link. This in turn greatly reduces the reactivation time involved in transitioning a mobile from the suspended state to the active state, which is particularly desirable for bursty (i.e., intermittent) packet data flow, as opposed to continuous circuit-oriented voice messaging.

公开(公告)号：EP1039656A2

公开(公告)日：2000-09-27

申请号：EP00301872.8

申请日：2000-03-07

Applicant: LUCENT TECHNOLOGIES INC.

Inventor： Jiang, Frances ,  Kamel, Raafat Edward ,  Li, Quinn ,  Salvarani, Alexandro Federico ,  Weaver, Carl Francis

IPC: H04B7/005

CPC classification number: H04W52/265 ,  H04W52/12 ,  H04W52/241 ,  H04W52/267 ,  H04W52/36 ,  H04W52/40

Abstract: A method of controlling the power in a wireless communication system (200). In one embodiment of the invention, a base station (210) determines the information rate of a signal to be transmitted (270) to a mobile station (220), and obtains the variable power control scaling factor (245) based on this information rate. The base station (210) then transmits the variable power control scaling factor (245) to the mobile station (220). The mobile station (220) determines a target signal quality measurement (130) for a received signal (270) from the base station (220), such as a target E b /N 0 (130), and scales the target E b /N 0 (130) by the variable power control scaling factor (245). The mobile station (220) also obtains an information rate scaling factor based on the information rate of the received signal (270), and further scales the target E b /N 0 by this information rate scaling factor. The mobile station (220) then compares the target E b /N 0 (130) to a measured E b /N 0 (160) of the received signal (270). An increase in power of the received signal (270) is requested when the measured E b /N 0 (160) of the received signal (270) is smaller than the scaled E b /N 0 (260). A decrease in power of the received signal (270) is requested when the measured E b /N 0 (160) of the received signal (270) is larger than the scaled E b /N 0 (260). Providing the variable power control scaling factor (245) to the mobile station (220) allows frames having an information rate lower than the full rate to be transmitted at a power even lower than the power of a frame having an information rate equal to the full rate times the information scaling factor.

公开(公告)号：EP1077537A2

公开(公告)日：2001-02-21

申请号：EP00306713.9

申请日：2000-08-07

Applicant: LUCENT TECHNOLOGIES INC.

Inventor： Li, Quinn ,  Ramesh, Nallepilli S.

IPC: H04B7/06 ,  H04B1/707 ,  H04L1/04 ,  H04L27/26 ,  H04B7/12 ,  H04J11/00

CPC classification number: H04L1/0071 ,  H04B1/707 ,  H04B7/06 ,  H04B7/12 ,  H04J13/18 ,  H04L1/004 ,  H04L1/04 ,  H04L1/06

Abstract: A transmitter for wireless communications provides multiple types of orthogonality to improve transmit diversity. Transmit diversity is improved by using both coding and carrier frequency orthogonality. Data to be transmitted is broken into four parallel channels. Two of the channels are transmitted on a first carrier signal and the other two channels are transmitted on a second carrier signal. Channels transmitted on the same carrier signal are provided with orthogonal codes so that they may be separated by a receiver. Channels transmitted on different carrier signals may be encoded with identical orthogonal codes. The modulated carrier signals are then transmitted using at least two antennas, where one antenna is used for each carrier.

Abstract translation: 用于无线通信的发射机提供多种类型的正交性以改善发射分集。 通过使用编码和载波频率正交性来改善发射分集。 要发送的数据被分解成四个并行通道。 两个信道在第一载波信号上发送，另外两个信道在第二载波信号上发送。 在相同载波信号上发射的信道被提供有正交码，使得它们可以被接收机分离。 在不同载波信号上发送的信道可以用相同的正交码进行编码。 然后使用至少两个天线发送调制的载波信号，其中每个载波使用一个天线。

公开(公告)号：EP1077537A3

公开(公告)日：2003-04-16

申请号：EP00306713.9

申请日：2000-08-07

Applicant: LUCENT TECHNOLOGIES INC.

Inventor： Li, Quinn ,  Ramesh, Nallepilli S.

IPC: H04B7/06 ,  H04B1/707 ,  H04L1/04 ,  H04L27/26 ,  H04B7/12 ,  H04J11/00

CPC classification number: H04L1/0071 ,  H04B1/707 ,  H04B7/06 ,  H04B7/12 ,  H04J13/18 ,  H04L1/004 ,  H04L1/04 ,  H04L1/06

Abstract: A transmitter for wireless communications provides multiple types of orthogonality to improve transmit diversity. Transmit diversity is improved by using both coding and carrier frequency orthogonality. Data to be transmitted is broken into four parallel channels. Two of the channels are transmitted on a first carrier signal and the other two channels are transmitted on a second carrier signal. Channels transmitted on the same carrier signal are provided with orthogonal codes so that they may be separated by a receiver. Channels transmitted on different carrier signals may be encoded with identical orthogonal codes. The modulated carrier signals are then transmitted using at least two antennas, where one antenna is used for each carrier.

公开(公告)号：EP1001568B1

公开(公告)日：2002-06-19

申请号：EP99308692.5

申请日：1999-11-02

Applicant: LUCENT TECHNOLOGIES INC.

Inventor： Li, Quinn ,  Ramesh, Nallepilli S.

IPC: H04J13/00 ,  H03K3/84 ,  H04B7/26

CPC classification number: H04J13/10 ,  H04B1/707

公开(公告)号：EP1001568A3

公开(公告)日：2001-01-10

申请号：EP99308692.5

申请日：1999-11-02

Applicant: LUCENT TECHNOLOGIES INC.

Inventor： Li, Quinn ,  Ramesh, Nallepilli S.

IPC: H04J13/00 ,  H03K3/84 ,  H04B7/26

CPC classification number: H04J13/10 ,  H04B1/707

Abstract: A complex spreading and/or scrambling code sequence ("scrambling code sequence") generation system uses a first complex code sequence having at least two components and a second complex code sequence having at least two components. The components of the first complex code sequence are respectively mixed with the corresponding components of the second complex code sequence to generate the complex scrambling code sequence. In doing so, an offset between the components of the complex scrambling code sequence is achieved for the same and/or different users. For example, the complex spreading code sequence generation system can use a long code generator which produces a long code sequence produced from the inner product of a code vector and a user mask. The long code sequence is provided to an I path and a Q path. To produce a complex long code sequence, the long code sequence on the Q path is delayed to produce a second long code sequence on the Q path or a Q component of the complex long code sequence. On the I path, the I long code sequence or the I component of the complex long code sequence is multiplied with an I component of a short code sequence to produce the I component of the complex scrambling code sequence. On the Q path, the Q long code sequence is multiplied with a Q component of the short code sequence to produce the Q component of the complex scrambling code sequence. As such, the offset between the components of the complex scrambling code sequence between different and/or the same user is at least the period of the short code. The complex scrambling code sequence can be used for spreading, scrambling, de-spreading or de-scrambling an information signal.

公开(公告)号：EP1059736B1

公开(公告)日：2009-12-02

申请号：EP00304774.3

申请日：2000-06-06

Applicant: LUCENT TECHNOLOGIES INC.

Inventor： Kumar, Sarath ,  Li, Quinn ,  Wu, Xiao C.

IPC: H04B7/005

CPC classification number: H04W52/143 ,  H04W52/146 ,  H04W52/40 ,  H04W52/50 ,  H04W52/54

公开(公告)号：EP1059736A2

公开(公告)日：2000-12-13

申请号：EP00304774.3

申请日：2000-06-06

Applicant: LUCENT TECHNOLOGIES INC.

Inventor： Kumar, Sarath ,  Li, Quinn ,  Wu, Xiao C.

IPC: H04B7/005

CPC classification number: H04W52/143 ,  H04W52/146 ,  H04W52/40 ,  H04W52/50 ,  H04W52/54

Abstract: In a wireless communications system, a base station transmits power control signals (e.g., the power control bits of a power control sub-channel) to a mobile using a forward-link channel that is decoupled from all other signals transmitted from that base station to that mobile. For example, the decoupled forward-link channel may be a common power control channel. The mobile then uses the power control signals received in the decoupled forward-link channel to control its power level for transmitting one or more reverse-link channels to the base station. The ability of base stations to use decoupled forward-link channels in order to transmit their power control signals to a mobile enables a mobile to operate with different active sets for the forward and reverse links. This enables forward-link data traffic to be implemented using a simplex mode, even when the mobile is operating in soft handoff in the reverse link. This in turn greatly reduces the reactivation time involved in transitioning a mobile from the suspended state to the active state, which is particularly desirable for bursty (i.e., intermittent) packet data flow, as opposed to continuous circuit-oriented voice messaging.

Abstract translation: 在无线通信系统中，基站使用从与该基站发送的所有其他信号分离的前向链路信道向功率控制信号（例如，功率控制子信道的功率控制比特）发送功率控制信号 那个手机。 例如，去耦合的前向链路信道可以是公共功率控制信道。 然后，移动台使用在去耦合的前向链路信道中接收的功率控制信号来控制其功率电平，以将一个或多个反向链路信道发送到基站。 基站使用解耦前向链路信道以便将其功率控制信号发送到移动台的能力使得移动台能够利用用于前向链路和反向链路的不同的活动集来操作。 这使得即使当移动台在反向链路中的软切换中操作时，也可以使用单工模式来实现前向链路数据业务。 这又大大减少了将移动台从暂停状态转换到活动状态所涉及的重新启动时间，这对于突发（即间歇性）分组数据流而言是特别需要的，而不是连续的面向电路的语音消息。

公开(公告)号：EP1001568A2

公开(公告)日：2000-05-17

申请号：EP99308692.5

申请日：1999-11-02

Applicant: LUCENT TECHNOLOGIES INC.

Inventor： Li, Quinn ,  Ramesh, Nallepilli S.

IPC: H04J13/00

CPC classification number: H04J13/10 ,  H04B1/707

Abstract: A complex spreading and/or scrambling code sequence ("scrambling code sequence") generation system uses a first complex code sequence having at least two components and a second complex code sequence having at least two components. The components of the first complex code sequence are respectively mixed with the corresponding components of the second complex code sequence to generate the complex scrambling code sequence. In doing so, an offset between the components of the complex scrambling code sequence is achieved for the same and/or different users. For example, the complex spreading code sequence generation system can use a long code generator which produces a long code sequence produced from the inner product of a code vector and a user mask. The long code sequence is provided to an I path and a Q path. To produce a complex long code sequence, the long code sequence on the Q path is delayed to produce a second long code sequence on the Q path or a Q component of the complex long code sequence. On the I path, the I long code sequence or the I component of the complex long code sequence is multiplied with an I component of a short code sequence to produce the I component of the complex scrambling code sequence. On the Q path, the Q long code sequence is multiplied with a Q component of the short code sequence to produce the Q component of the complex scrambling code sequence. As such, the offset between the components of the complex scrambling code sequence between different and/or the same user is at least the period of the short code. The complex scrambling code sequence can be used for spreading, scrambling, de-spreading or de-scrambling an information signal.

Abstract translation: 复扩展和/或扰码序列（“扰码序列”）生成系统使用具有至少两个分量的第一复码序列和具有至少两个分量的第二复码序列。 第一复编码序列的分量分别与第二复码序列的对应分量混合以产生复数扰码序列。 在这样做时，针对相同和/或不同的用户实现了复杂扰码序列的分量之间的偏移。 例如，复扩展码序列生成系统可以使用长代码生成器，其生成从代码矢量和用户掩码的内积产生的长代码序列。 长码序列被提供给I路径和Q路径。 为了产生复杂的长码序列，Q路径上的长码序列被延迟以在Q路径上产生第二长码序列或复长码序列的Q分量。 在I路径上，复长码序列的I长码序列或I分量与短码序列的I分量相乘以产生复数扰码序列的I分量。 在Q路径上，将Q长码序列与短码序列的Q分量相乘以产生复数扰码序列的Q分量。 这样，不同用户和/或同一用户之间的复合扰码序列的组件之间的偏移量至少是短码的周期。 复数扰码序列可用于扩展，加扰，解扩或解扰信息信号。