METHOD AND APPARATUS FOR IRAT MEASUREMENT WHEN IN TD-SCDMA CONNECTED MODE
    1.
    发明申请
    METHOD AND APPARATUS FOR IRAT MEASUREMENT WHEN IN TD-SCDMA CONNECTED MODE 审中-公开
    TD-SCDMA连接模式下IRAT测量的方法和装置

    公开(公告)号:US20130223428A1

    公开(公告)日:2013-08-29

    申请号:US13407680

    申请日:2012-02-28

    IPC分类号: H04W24/00

    CPC分类号: H04W36/0088 H04W36/14

    摘要: When a user equipment (UE) is operating in connected mode in a Time Division-Synchronous Code Division Multiple Access (TD-SCDMA) network all time slots may be allocated to communications, leaving insufficient time for the UE to perform measurement of neighboring radio access technologies (RATs). The UE may select one out of every N number of transmit time intervals (TTIs) to halt regular communication and reserve that TTI for purposes of inter-RAT measurement.

    摘要翻译: 当用户设备(UE)在时分同步码分多址(TD-SCDMA)网络中以连接方式工作时,可将所有时隙分配给通信,留下足够的时间使UE执行相邻无线电接入的测量 技术(RAT)。 UE可以选择每N个传输时间间隔(TTI)中的一个来停止常规通信,并为了RAT间测量的目的而保留该TTI。

    IRAT MEASUREMENT METHOD WHEN IN TD-SCDMA CONNECTED MODE
    2.
    发明申请
    IRAT MEASUREMENT METHOD WHEN IN TD-SCDMA CONNECTED MODE 审中-公开
    TD-SCDMA连接模式下的IRAT测量方法

    公开(公告)号:US20130223239A1

    公开(公告)日:2013-08-29

    申请号:US13407652

    申请日:2012-02-28

    IPC分类号: H04W24/10

    CPC分类号: H04W36/0088

    摘要: When a user equipment (UE) is operating in connected mode in a Time Division-Synchronous Code Division Multiple Access (TD-SCDMA) network all time slots may be allocated to communications, leaving insufficient time for the UE to perform measurement of neighboring radio access technologies (RATs). When the UE moves out of TD-SCDMA coverage, it may report to the base station and receive an instruction to switch into time division multiplexing (TDM) mode and to perform inter-RAT measurement while in TDM mode.

    摘要翻译: 当用户设备(UE)在时分同步码分多址(TD-SCDMA)网络中以连接方式工作时,可将所有时隙分配给通信,留下足够的时间使UE执行相邻无线电接入的测量 技术(RAT)。 当UE移出TD-SCDMA覆盖范围时,它可以向基站报告并接收切换到时分复用(TDM)模式的指令,并且在TDM模式下执行RAT间测量。

    Short Random Access Channel (RACH) Disabling in TDD-LTE
    6.
    发明申请
    Short Random Access Channel (RACH) Disabling in TDD-LTE 有权
    TDD-LTE中的短随机接入信道(RACH)禁止

    公开(公告)号:US20130201885A1

    公开(公告)日:2013-08-08

    申请号:US13364652

    申请日:2012-02-02

    IPC分类号: H04J3/00

    CPC分类号: H04W72/082 H04W74/08

    摘要: In TDD-LTE wireless systems, an additional fourth preamble for the random access channel, called short RACH, may be used. If short RACH signaling is to be used, the random access preamble is transmitted in the uplink pilot time slot (UpPTS) field in the special subframe. The location of the uplink pilot time slot (UpPTS) is next to a downlink subframe. Therefore, interference from neighbor base stations may interfere with the short RACH preamble within the uplink pilot time slot. The interference to the short RACH will prevent the eNodeB from detecting the short RACH preamble and thus prevent the UE from accessing the network. An interference level on an Uplink Pilot Time Slot (UpPTS) may be measured and when the interference level exceeds a threshold value a User Equipment (UE) is instructed to disable short Random Access Channel (RACH) signaling. The UE may then be instructed to enable normal RACH. When the interference level falls below the threshold value the UE is instructed to resume short RACH signaling

    摘要翻译: 在TDD-LTE无线系统中,可以使用称为短RACH的随机接入信道的另外的第四前同步码。 如果要使用短的RACH信令,则在特殊子帧中的上行链路导频时隙(UpPTS)字段中发送随机接入前导码。 上行链路导频时隙(UpPTS)的位置在下行子帧的旁边。 因此,来自相邻基站的干扰可能干扰上行链路导频时隙内的短RACH前导码。 对短RACH的干扰将阻止eNodeB检测短RACH前同步码,从而防止UE接入网络。 可以测量上行链路导频时隙(UpPTS)上的干扰电平,并且当干扰电平超过阈值时,指示用户设备(UE)禁用短随机接入信道(RACH)信令。 然后可以指示UE启用正常的RACH。 当干扰电平低于阈值时,UE被指示恢复短的RACH信令

    CALL RECOVERY IN TD-SCDMA HANDOVER FAILURE
    7.
    发明申请
    CALL RECOVERY IN TD-SCDMA HANDOVER FAILURE 审中-公开
    TD-SCDMA切换失败中的呼叫恢复

    公开(公告)号:US20130176866A1

    公开(公告)日:2013-07-11

    申请号:US13344441

    申请日:2012-01-05

    IPC分类号: H04W24/00 H04W36/00

    摘要: A method of wireless communication includes measuring and recording a path loss of a first downlink signal from a source base station, prior to attempting handoff from the source base station to a target base station. The path loss of a second downlink signal from the source base station is measured after unsuccessful handoff from the source base station to the target base station. A UE communicates with the source base station, after unsuccessful handoff, using an uplink timing corresponding to an uplink timing recorded prior to attempting handoff when a difference between the path loss of the first downlink signal and the path loss of the second downlink signal fails to meet a threshold value. A new uplink timing is used when the difference meets the threshold value.

    摘要翻译: 一种无线通信方法包括在尝试从源基站到目标基站的切换之前测量并记录来自源基站的第一下行链路信号的路径损耗。 在从源基站到目标基站的切换不成功之后,测量来自源基站的第二下行链路信号的路径损耗。 在第一下行链路信号的路径损耗与第二下行链路信号的路径损耗之间的差异不成立时,UE在切换不成功之后,使用对应于在尝试切换之前记录的上行链路定时的上行链路定时,与源基站通信, 满足阈值。 当差值满足阈值时,使用新的上行链路定时。

    METHOD AND APPARATUS FOR BALANCING LOAD AND REDUCING CALL BLOCKING IN A TD-SCDMA SYSTEM
    8.
    发明申请
    METHOD AND APPARATUS FOR BALANCING LOAD AND REDUCING CALL BLOCKING IN A TD-SCDMA SYSTEM 审中-公开
    用于平衡负载并减少TD-SCDMA系统中的呼叫阻塞的方法和装置

    公开(公告)号:US20130028081A1

    公开(公告)日:2013-01-31

    申请号:US13359167

    申请日:2012-01-26

    IPC分类号: H04W28/08 H04W36/22 H04W48/20

    CPC分类号: H04W48/20 H04W36/30

    摘要: A method, an apparatus, and a computer program product for wireless communication are provided in connection with providing a process for balancing loads and reducing call blocking in a TD-SCDMA network. In one example, a user equipment (UE) is equipped to obtain a received signal code power (RSCP) value and a load factor value for each of one or more cells. The UE may be further equipped to rank the one or more cells based on a cell selection value derived from both the RSCP value and the load factor value and select a serving cell from the ranked one or more cells.

    摘要翻译: 提供一种用于无线通信的方法,装置和计算机程序产品,用于提供用于平衡负载并减少TD-SCDMA网络中的呼叫阻塞的过程。 在一个示例中,用户设备(UE)被配备为获得一个或多个小区中的每一个的接收信号码功率(RSCP)值和负载因子值。 UE可以进一步配备为基于从RSCP值和负载因子值两者导出的小区选择值对一个或多个小区进行排序,并从排序的一个或多个小区中选择服务小区。

    Short random access channel (RACH) disabling in TDD-LTE
    10.
    发明授权
    Short random access channel (RACH) disabling in TDD-LTE 有权
    在TDD-LTE中的短随机接入信道(RACH)禁用

    公开(公告)号:US08873435B2

    公开(公告)日:2014-10-28

    申请号:US13364652

    申请日:2012-02-02

    IPC分类号: H04J3/00

    CPC分类号: H04W72/082 H04W74/08

    摘要: In TDD-LTE wireless systems, an additional fourth preamble for the random access channel, called short RACH, may be used. If short RACH signaling is to be used, the random access preamble is transmitted in the uplink pilot time slot (UpPTS) field in the special subframe. The location of the uplink pilot time slot (UpPTS) is next to a downlink subframe. Therefore, interference from neighbor base stations may interfere with the short RACH preamble within the uplink pilot time slot. The interference to the short RACH will prevent the eNodeB from detecting the short RACH preamble and thus prevent the UE from accessing the network. An interference level on an Uplink Pilot Time Slot (UpPTS) may be measured and when the interference level exceeds a threshold value a User Equipment (UE) is instructed to disable short Random Access Channel (RACH) signaling. The UE may then be instructed to enable normal RACH. When the interference level falls below the threshold value the UE is instructed to resume short RACH signaling.

    摘要翻译: 在TDD-LTE无线系统中,可以使用称为短RACH的随机接入信道的另外的第四前同步码。 如果要使用短的RACH信令,则在特殊子帧中的上行链路导频时隙(UpPTS)字段中发送随机接入前导码。 上行链路导频时隙(UpPTS)的位置在下行子帧的旁边。 因此,来自相邻基站的干扰可能干扰上行链路导频时隙内的短RACH前导码。 对短RACH的干扰将阻止eNodeB检测短RACH前同步码,从而防止UE接入网络。 可以测量上行链路导频时隙(UpPTS)上的干扰电平,并且当干扰电平超过阈值时,指示用户设备(UE)禁用短随机接入信道(RACH)信令。 然后可以指示UE启用正常的RACH。 当干扰电平低于阈值时,UE被指示恢复短的RACH信令。