METHOD AND APPARATUS FOR BEAM SWITCHING IN A WIRELESS COMMUNICATION SYSTEM
    2.
    发明授权
    METHOD AND APPARATUS FOR BEAM SWITCHING IN A WIRELESS COMMUNICATION SYSTEM 有权
    方法和系统波束切换在无线通信系统

    公开(公告)号:EP1295497B1

    公开(公告)日:2007-11-07

    申请号:EP01951086.6

    申请日:2001-06-18

    IPC分类号: H04Q7/36 H04B7/26

    CPC分类号: H04W16/12 H04W16/02

    摘要: In a CDMA data communication system capable of variable rate transmission, utilization of beam switching techniques decreases the average interference caused by transmissions of a base station to subscriber stations within a cell, and in neighboring cells. Base stations utilize multiple transmit antennas, each transmitting signals at controlled amplitudes and phases, to form transmit signal corresponding to sector divisions. Data and reference signals are transmitted along sector division beams that alternate according to fixed time slots in order to increase system capacity and data rates by maximizing carrier-to-interference ratios (C/I) measured at subscriber stations.

    METHOD AND APPARATUS FOR HIGH RATE PACKET DATA TRANSMISSION
    4.
    发明授权
    METHOD AND APPARATUS FOR HIGH RATE PACKET DATA TRANSMISSION 有权
    VERFAHREN UND ANORDNUNG ZURHOCHGESCHWINDIGKEITSÜBERTRAGUNGVON DATENPAKETEN

    公开(公告)号:EP1029419B1

    公开(公告)日:2007-02-14

    申请号:EP98956526.2

    申请日:1998-11-03

    IPC分类号: H04Q7/22

    摘要: In a data communication system capable of variable rate transmission, high rate packet data transmission improves utilization of the forward link and decreases the transmission delay. Data transmission on the forward link is time multiplexed and the base station transmits at the highest data rate supported by the forward link at each time slot to one mobile station. The data rate is determined by the largest C/I measurement of the forward link signals as measured at the mobile station. Upon determination of a data packet received in error, the mobile station transmits a NACK message back to the base station. The NACK message results in retransmission of the data packet received in error. The data packets can be transmitted out of sequence by the use of sequence number to identify each data unit within the data packets.

    摘要翻译: 在能够进行可变速率传输的数据通信系统中,高速率分组数据传输提高了前向链路的利用率并降低了传输延迟。 前向链路上的数据传输被时分复用,并且基站以每个时隙的前向链路支持的最高数据速率发送到一个移动台。 数据速率由移动台测量的前向链路信号的最大C / I测量来确定。 在确定错误地接收到的数据分组时,移动台向基站发送NACK消息。 NACK消息导致错误地接收到的数据分组的重传。 数据包可以通过使用序列号序列发送,以识别数据包内的每个数据单元。

    A METHOD AND SYSTEM FOR MAXIMIZING STANDBY TIME IN MONITORING A CONTROL CHANNEL
    7.
    发明公开
    A METHOD AND SYSTEM FOR MAXIMIZING STANDBY TIME IN MONITORING A CONTROL CHANNEL 有权
    VERFAHREN UND系统ZUR MAXIMIERUNG DER STANDBY-ZEIT BEIMÜBERWACHENEINES KONTROLLKANALS

    公开(公告)号:EP1374612A1

    公开(公告)日:2004-01-02

    申请号:EP02723650.4

    申请日:2002-03-29

    IPC分类号: H04Q7/32 H04Q7/38

    摘要: In a method and system for monitoring a control channel in a telecommunication system, the transmission of the overhead parameters is separated from the transmission of the packets that are directed to an access terminal. Consequently, the access terminal may need to monitor a control channel for a shorter period of time if a current message indicates that the received set of overhead parameters is up to date. In this case, the access terminal with up-to-date overhead parameters may stop monitoring the control channel before the end of a synchronous capsule time period. Otherwise, the access terminal may continue to monitor the control channel until an up-to-date set of overhead parameters is received.

    摘要翻译: 在用于监测电信系统中的控制信道的方法和系统中,开销参数的传输与指向接入终端的分组的传输分离。 因此,如果当前消息指示所接收的一组开销参数是最新的,则接入终端可能需要在更短的时间段内监视控制信道。 在这种情况下,具有最新开销参数的接入终端可以在同步胶囊时间周期结束之前停止监视控制信道。 否则,接入终端可以继续监视控制信道,直到接收到最新的开销参数集合。

    METHOD AND APPARATUS FOR DATA RATE CONTROL IN A COMMUNICATION SYSTEM
    8.
    发明公开
    METHOD AND APPARATUS FOR DATA RATE CONTROL IN A COMMUNICATION SYSTEM 有权
    方法和设备,用于控制通信系统中的数据速率

    公开(公告)号:EP1371165A2

    公开(公告)日:2003-12-17

    申请号:EP02709818.5

    申请日:2002-03-08

    发明人: BENDER, Paul, E.

    IPC分类号: H04L1/00

    CPC分类号: H04W36/16 H04W74/04

    摘要: In a wireless communication system (10) in a method and apparatus for inhibiting data transmissions during a data service outage at the access terminal (16). The access terminal (16) transmits an outage indicator to the access network (12) prior to the outage. A data service outage may be due to a page monitor of the voice portion of the system, or to frequency searching during which the access terminal (AT) is not available to receive data. The access network (12) does not transmit data during the outage. In one embodiment, the indicator is a DR null cover. In an alternate embodiment, the indicator is a DR having a zero data rate.

    METHOD AND APPARATUS FOR CANCELING PILOT INTERFERENCE IN A CDMA COMMUNICATION SYSTEM
    9.
    发明公开
    METHOD AND APPARATUS FOR CANCELING PILOT INTERFERENCE IN A CDMA COMMUNICATION SYSTEM 审中-公开
    用于消除CDMA通信系统中的导频干扰的方法和设备

    公开(公告)号:EP1327311A2

    公开(公告)日:2003-07-16

    申请号:EP01987972.5

    申请日:2001-10-16

    IPC分类号: H04B1/707

    CPC分类号: H04B1/7107

    摘要: Techniques for canceling pilot interference in a wireless (e.g., CDMA) communication system. A received signal typically includes a number of signal instances (i.e., multipaths). For each multipath desired to be processed, the other multipaths act as interference on the desired multipath. If the pilot is generated based on a known data pattern (e.g., all zeros) and covered with a known channelization code (e.g., a Walsh code of zero), then the pilot in an interfering multipath may be estimated as the spreading sequence at a time offset corresponding to the arrival time of that multipath. The pilot interference from each interference multipath may be estimated based on the spreading sequence for the interfering multipath and the despreading sequence for the desired multipath. The total pilot interference from a number of interfering multipaths may be subtracted from the data component in the desired multipath to provide pilot-canceled data having improved performance.

    摘要翻译: 用于消除无线(例如,CDMA)通信系统中的导频干扰的技术。 接收的信号通常包括多个信号实例(即,多路径)。 对于需要处理的每个多路径,其他多路径对期望的多路径起干扰作用。 如果基于已知数据模式(例如,全零)生成导频并且用已知信道化码(例如,零的沃尔什码)覆盖导频,则可以将干扰多径中的导频估计为 时间偏移对应于该多路径的到达时间。 可以基于干扰多径的扩频序列和期望多径的解扩序列来估计来自每个干扰多径的导频干扰。 可以从所需多径中的数据分量中减去来自多个干扰多径的总导频干扰,以提供具有改进性能的导频消除数据。

    INTERFACE BETWEEN STANDARD TERMINAL EQUIPMENT UNIT AND HIGH SPEED WIRELESS LINK
    10.
    发明公开
    INTERFACE BETWEEN STANDARD TERMINAL EQUIPMENT UNIT AND HIGH SPEED WIRELESS LINK 审中-公开
    接口标准,终端和更快的DRATHLOSVERBINDUNG BETWEEN

    公开(公告)号:EP1116359A2

    公开(公告)日:2001-07-18

    申请号:EP99969558.8

    申请日:1999-09-17

    IPC分类号: H04L12/28

    摘要: A system provides wireless data service. The system includes a wireless modem (42) configured to be coupled to a terminal equipment unit (40) over a wireline broadcast medium (56). A network unit (58) is coupled to the wireless modem (42) over a wireless link connection. A network remote server (60) is coupled to the network unit (58). The network remote server (60) provides IP address information in response to terminal equipment unit address request messages for terminal equipment units (40) coupled to the network unit (58). In addition, a local server (52) is couple to the wireless modem (42). The local server (52) provides IP address information in response to terminal equipment unit (40) address request messages from terminal equipment units (40) coupled to the wireline broadcast medium.