公开(公告)号：EP1059823A1

公开(公告)日：2000-12-13

申请号：EP00304769.3

申请日：2000-06-06

Applicant: LUCENT TECHNOLOGIES INC.

Inventor： Kumar, Sarath ,  Nanda, Sanjiv ,  Rubin, Harvey ,  Vitebskiy, Stanislav

IPC: H04Q7/38

CPC classification number: H04W52/143 ,  H04W36/18 ,  H04W52/146 ,  H04W52/40 ,  H04W52/44 ,  H04W52/50

Abstract: A back haul architecture enables efficient primary transfer (i.e., transfer of the designation of primary base station from one base station to another). A frame selection/distribution (FSD) function queues packets of forward-link data -- to which sequence numbers have been assigned --for packet-mode transmission over the back haul only to one base station -- the current primary base station -- where the packets are again queued for over-the-air transmission to the mobile unit. If and when it becomes appropriate to transfer the designation of primary base station to another base station, there may still be packets of data queued at the old primary base station awaiting transmission to the mobile unit. The old primary base station sends a message to the new primary base station indicating a particular sequence number that identifies the remaining packets of forward-link data queued at the old primary base station. The new primary base station then sends a message to the FSD function requesting transmission of those packets of forward-link data corresponding to the particular sequence number. The FSD function then transmits those requested packets of forward-link data to the new primary base station, which queues the requested packets for over-the-air transmission to the mobile unit. In this way, transmission of all of the forward-link data to the mobile unit is enabled without having to transmit the remaining queued packets of forward-link data from the old primary base station to the new primary base station over the back haul, thereby providing an efficient mechanism for primary transfer in wireless communications systems that support forward-link data transmissions only in simplex mode.

Abstract translation: 后向架构能够有效地进行一次传送（即将主基站的指定从一个基站传送到另一个基站）。 帧选择/分配（FSD）功能将前向链路数据的分组（已分配给序列号）排队，用于仅在一个基站上的分组模式传输 - 当前的主基站 - 其中分组再次排队等待空中传输到移动单元。 如果当将主基站的指定转​​移到另一基站变得适当时，则可能仍然存在在旧的主基站等待传输到移动单元的数据分组。 旧的主基站向新的主基站发送消息，指示表示在旧的主基站排队的前向链路数据的剩余分组的特定序列号。 然后，新的主基站向FSD功能发送请求传输与特定序列号对应的前向链路数据的分组的消息。 然后，FSD功能将所请求的前向链路数据分组发送到新的主基站，该主基站将所请求的分组排队到空中传输到移动单元。 以这种方式，可以使得所有前向链路数据向移动单元的传输得以实现，而无需将后续链路数据的剩余排队分组从旧的主基站传输到新的主基站，从而 提供了一种仅在单工模式下支持前向链路数据传输的无线通信系统中的主要传输的有效机制。

公开(公告)号：EP1052798A2

公开(公告)日：2000-11-15

申请号：EP00303276.0

申请日：2000-04-18

Applicant: LUCENT TECHNOLOGIES INC.

Inventor： Khan, Farooq Ullah ,  Knisely, Douglas N. ,  Kumar, Sarath ,  Medapalli, Kameswara Rao ,  Nanda, Sanjiv

IPC: H04L1/18

CPC classification number: H04L1/1825 ,  H04L1/0023 ,  H04L1/165 ,  H04L1/1671 ,  H04L1/1809

Abstract: A variable length sequence number is used to identify data units in a communication channel. The sequence number associated with the most recent data that has been received successfully and the sequence number expected with the next new data message to be received are examined to determine the minimum size sequence number necessary to unambiguously identify to the transmitter incorrectly received data that must be retransmitted in a later message. The receiver provides the transmitter with the sequence number associated with the last successfully received byte of data and the sequence number associated with the next expected byte of data. The receiver communicates this information to the transmitter using a NAK control message. The transmitter then uses the sequence number of the next byte of data to be transmitted and the information received in the control message from the receiver to determine the smallest number of bits necessary to represent the sequence numbers for both data transmissions and the retransmission of data that was not received properly by the receiver.

Abstract translation: 可变长度序列号用于识别通信信道中的数据单元。 检查与已经成功接收的最新数据相关联的序列号以及预期接收到的下一个新数据消息的序列号，以确定明确识别发射机所必需的最小大小序列号，这些数据必须是 在稍后的消息中重传。 接收机向发射机提供与最后成功接收的数据字节相关联的序列号以及与下一个预期数据字节相关联的序列号。 接收机使用NAK控制消息将该信息传送给发射机。 然后，发射机使用要发送的数据的下一字节的序列号和来自接收机的控制消息中接收的信息来确定表示数据传输的序列号所需的最小比特数，并且重传数据的重传 接收器没有正确接收到。

公开(公告)号：EP0899981A3

公开(公告)日：1999-04-14

申请号：EP98306550.9

申请日：1998-08-18

Applicant: LUCENT TECHNOLOGIES INC.

Inventor： Kumar, Sarath ,  Rege, Kiran M. ,  Kuo, Wen-Yi

IPC: H04Q7/38

CPC classification number: H04W36/18

Abstract: The present invention increases the success rate of soft handoffs by enhancing the ability of a mobile-telephone to receive a handoff direction message that identifies the traffic channel being assigned to enable a candidate base station to communicate with the mobile-telephone. Specifically, the aforementioned ability of the mobile-telephone is enhanced by using the candidate base station to transmit the handoff direction message on a communication channel belonging to the candidate base station and being listened to by the mobile-telephone. In situations where signals transmitted from active set base stations have a low signal-to-noise ratio at the mobile-telephone, signals transmitted from the candidate base station may have a higher signal-to-noise ratio at the mobile-telephone. In these situations, the transmission of the HD messages from the candidate base station increases the likelihood that a copy of the handoff direction message will be successfully received by the mobile-telephone, thereby enhancing the success rate of soft handoffs.

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：EP0975186B1

公开(公告)日：2006-05-03

申请号：EP99305506.0

申请日：1999-07-12

Applicant: LUCENT TECHNOLOGIES INC.

Inventor： Kumar, Sarath ,  Nanda, Sanjiv ,  Vitebsky, Stanley

IPC: H04Q7/38

CPC classification number: H04W72/0413 ,  H04B2201/70703 ,  H04W28/20 ,  H04W72/042 ,  H04W72/0453 ,  H04W74/00 ,  H04W74/04 ,  H04W84/042

公开(公告)号：EP0940933A3

公开(公告)日：2002-08-07

申请号：EP99301552.8

申请日：1999-03-02

Applicant: LUCENT TECHNOLOGIES INC.

Inventor： Kumar, Sarath ,  Nanda, Sanjiv ,  Song, Lei

IPC: H04B7/005

CPC classification number: H04W52/221 ,  H04W52/241 ,  H04W52/362

Abstract: A technique for controlling the power with which a wireless terminal transmits is disclosed. One embodiment of the present invention comprises: transmitting a first signal at a first power level; receiving a series of n power control signals, b i-n+1 through b i ; setting a step size based on a measure of dispersion of the n power control signals; and transmitting a second signal at a second power level that is based on the first power level and the step size.

公开(公告)号：EP1052798A3

公开(公告)日：2001-08-16

申请号：EP00303276.0

申请日：2000-04-18

Applicant: LUCENT TECHNOLOGIES INC.

Inventor： Khan, Farooq Ullah ,  Knisely, Douglas N. ,  Kumar, Sarath ,  Medapalli, Kameswara Rao ,  Nanda, Sanjiv

IPC: H04L1/18

CPC classification number: H04L1/1825 ,  H04L1/0023 ,  H04L1/165 ,  H04L1/1671 ,  H04L1/1809

Abstract: A variable length sequence number is used to identify data units in a communication channel. The sequence number associated with the most recent data that has been received successfully and the sequence number expected with the next new data message to be received are examined to determine the minimum size sequence number necessary to unambiguously identify to the transmitter incorrectly received data that must be retransmitted in a later message. The receiver provides the transmitter with the sequence number associated with the last successfully received byte of data and the sequence number associated with the next expected byte of data. The receiver communicates this information to the transmitter using a NAK control message. The transmitter then uses the sequence number of the next byte of data to be transmitted and the information received in the control message from the receiver to determine the smallest number of bits necessary to represent the sequence numbers for both data transmissions and the retransmission of data that was not received properly by the receiver.

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：EP1056238A2

公开(公告)日：2000-11-29

申请号：EP00304059.9

申请日：2000-05-15

Applicant: LUCENT TECHNOLOGIES INC.

Inventor： Cloutier, Joseph E. ,  Knisely, Douglas N. ,  Kumar, Sarath ,  Nanda, Sanjiv

IPC: H04L1/16

CPC classification number: H04L1/0068 ,  H04L1/1642 ,  H04L1/1664 ,  H04L1/1809

Abstract: A method for improving the throughput of a communication system by decreasing the amount of time it takes to retransmit information determined to have been erroneous. Information received by an equipment is decoded and subjected to error detection techniques. The equipment performs a data puncture operation on the received information it is currently transmitting to request a retransmission of such received information.

Abstract translation: 一种用于通过减少重传确定为错误的信息所花费的时间量来改善通信系统的吞吐量的方法。 由设备接收的信息被解码并进行错误检测技术。 设备对其正在发送的接收到的信息执行数据穿孔操作，以请求重传这些接收到的信息。

公开(公告)号：EP0975186A2

公开(公告)日：2000-01-26

申请号：EP99305506.0

申请日：1999-07-12

Applicant: LUCENT TECHNOLOGIES INC.

Inventor： Kumar, Sarath ,  Nanda, Sanjiv ,  Vitebsky, Stanley

IPC: H04Q7/38

CPC classification number: H04W72/0413 ,  H04B2201/70703 ,  H04W28/20 ,  H04W72/042 ,  H04W72/0453 ,  H04W74/00 ,  H04W74/04 ,  H04W84/042

Abstract: Bursts of additional bandwidth (e.g., one or more supplemental channels or a channel having variable bandwidth) is assigned to users (e.g., high-speed data users) in a cellular telecommunication system. A request for assignment of additional bandwidth may be an initial request, a continuation request for an on-going burst, or a retry requests after a previously rejected request. In any case, it is determined whether to grant or reject the request. If the request is rejected, instructions are given to submit a retry request after a specified back-off time. The present invention may be implemented using either an asynchronous approach or a synchronous approach. According to the asynchronous approach, all requests are handled asynchronously. According to the synchronous approach, initial requests are handled asynchronously, but continuation requests and retry requests are handled synchronously at epoch times that coincide with specific time slots.

Abstract translation: 附加带宽的突发（例如，一个或多个补充信道或具有可变带宽的信道）被分配给蜂窝电信系统中的用户（例如，高速数据用户）。 分配附加带宽的请求可以是初始请求，持续突发的继续请求或先前拒绝的请求之后的重试请求。 无论如何，确定是否授予或拒绝该请求。 如果请求被拒绝，则在指定的退货时间之后提供指令以提交重试请求。 本发明可以使用异步方法或同步方法来实现。 根据异步方法，异步处理所有请求。 根据同步方法，初始请求被异步处理，但延续请求和重试请求在与特定时隙一致的时代同步处理。