101.
    发明专利
    未知

    公开(公告)号:BR9702091A

    公开(公告)日:1999-07-20

    申请号:BR9702091

    申请日:1997-01-03

    Applicant: MOTOROLA INC

    Abstract: Power control in a spread spectrum communication system takes place by determining a speed of a remote unit (405) and assigning as a power-control threshold a target threshold based on the determined speed (410). An instantaneous threshold value is created (415) based on frame-quality information and the target threshold. An energy of a power-control group transmitted (430) from a remote unit is compared to the instantaneous threshold value and a power-adjustment command is determined. The power-adjustment command is transmitted to the remote unit instructing the remote unit to adjust its power accordingly.

    METHOD OF CONTROLLING A COMMUNICATION SYSTEM

    公开(公告)号:CA2234228A1

    公开(公告)日:1998-02-19

    申请号:CA2234228

    申请日:1997-07-01

    Applicant: MOTOROLA INC

    Abstract: A code division multiple access (CDMA) communication system (100) has improv ed control by accurately characterizing coverage and loading parameters related to the CDMA communication system (100). To accurately characterize coverage and loading parameters related to the CDMA communication system, parameter meshes corresponding to parameters of the CDMA communication system are generated. The parameter meshes are evaluated, either individually or in combination, to provide comprehensive information regarding the performance of the CDMA communication system. Based on the results of the evaluation, a controller (113) within the CDMA communication system (100) controls the parameters to improve call quality, loading, etc. of the CDMA communication system (100).

    METHOD AND APPARATUS FOR POWER CONTROL OF A FIRST CHANNEL BASED ON A SIGNAL QUALITY OF A SECOND CHANNEL

    公开(公告)号:CA2229815A1

    公开(公告)日:1998-01-08

    申请号:CA2229815

    申请日:1997-03-27

    Applicant: MOTOROLA INC

    Abstract: Power control in a spread-spectrum communication system takes place by determining origination power of a traffic channel based on a number of active demodulators and pilot channel signal quality (610). Once origination transmit power is determined and call origination takes place, the transmit power is reduced at a first rate when a time is less than a time for all active demodulators to be established (615), otherwise the transmit power is reduced at a second rate (621). After all active demodulators have been acquired power control takes place by receiving a Power Measurement Report Message (PMRM) or a Pilot Strength Measurement Message (PSMM), determining a signal quality metric existing at the remote unit based on the PMRM or PSMM, and adjusting transmit power based on the signal quality metric (645).

    106.
    发明专利
    未知

    公开(公告)号:FI965185A

    公开(公告)日:1996-12-20

    申请号:FI965185

    申请日:1996-12-20

    Applicant: MOTOROLA INC

    Abstract: A method and apparatus for understanding information relating to communication system performance, including the dynamic nature of the system is provided. Elements of the system are represented (102, 110) as various shapes (30, 32, 40) defined by an number of different parameters on a display device (24). The shapes are characterized by a number of defining parameters and these defining parameters have an association with performance characteristics or performance parameters of the system element. As performance parameter data changes with time, e.g., during system operation, the defining parameters are altered such that the shape representing the system element is modified (106, 114). In this manner a large number of system elements and associated performance characteristics and the time varying nature thereof can be readily displayed to aid the system operator.

    107.
    发明专利
    未知

    公开(公告)号:FI960966A

    公开(公告)日:1996-03-01

    申请号:FI960966

    申请日:1996-03-01

    Applicant: MOTOROLA INC

    Abstract: An efficient apparatus for performing frequency conversion from a final IF frequency to a baseband frequency is described. A counter (401) generates two logical signals G1 (402) and G2 (403) which are passed to an exclusive-OR gate (404) and a multiplexer (406). When a control signal (411) is deasserted, multiplexer (406) passes signal G1 to I1 and signal G2 to I2; when control signal (411) is asserted, multiplexer (406) passes binary signal G1 to I2 (410) and signal G2 to I1 (407). Similarly, multiplexer (405) swaps its input real and imaginary samples when the output of exclusive-OR gate (404) is asserted; otherwise, it performs no operation on its input samples. Signals I1 (407) and I2 (410) are used to control arithmetic inverters (408) and (409) respectively. When the controlling signal for either inverter is asserted, the inverter performs arithmetic inversion, otherwise it performs no operation.

    METHOD AND SYSTEM FOR SELECTIVE USE OF CONTROL CHANNEL ELEMENT BASED IMPLICIT POINTING
    108.
    发明申请
    METHOD AND SYSTEM FOR SELECTIVE USE OF CONTROL CHANNEL ELEMENT BASED IMPLICIT POINTING 审中-公开
    基于控制信道单元的隐式指向选择方法和系统

    公开(公告)号:WO2009026018A2

    公开(公告)日:2009-02-26

    申请号:PCT/US2008072750

    申请日:2008-08-11

    Abstract: A method for selective use of control channel element (CCE)-based implicit pointing. The method includes the step of determining whether a number of multiple user elements (UE) within a multi-user multiple-input multiple-output (MU-MIMO) group is greater than the number of resource blocks allocated to the MU-MIMO group. If the number of UEs in the MU-MIMO group is greater than the number of resource blocks allocated to the MU-MIMO group, the method further includes transmitting to each of the UEs of the MU-MIMO group acknowledgements on acknowledgement channels within a first acknowledgement bank and acknowledgements on acknowledgement channels within a second acknowledgement bank. A first portion of the UEs of the MU-MIMO group receives the acknowledgements on the acknowledgement channels within the first acknowledgement bank and a second portion of the UEs of MU-MIMO group receives the acknowledgements on the acknowledgement channels within the second acknowledgement bank.

    Abstract translation: 一种选择性使用基于控制信道单元(CCE)的隐式指向的方法。 该方法包括确定多用户多输入多输出(MU-MIMO)组内的多个用户元素(UE)的数量是否大于分配给MU-MIMO组的资源块的数量的步骤。 如果MU-MIMO组中的UE的数量大于分配给MU-MIMO组的资源块的数量,则该方法还包括向MU-MIMO组中的每个UE发送确认信道上的确认, 确认银行以及第二确认银行内确认渠道上的确认。 MU-MIMO组的UE的第一部分在第一确认银行内的确认信道上接收确认,而MU-MIMO组的第二部分UE在第二确认银行内的确认信道上接收确认。

    ALLOCATION OF CONTROL CHANNEL FOR RADIO RESOURCE ASSIGNMENT IN WIRELESS COMMUNICATION SYSTEMS
    109.
    发明申请
    ALLOCATION OF CONTROL CHANNEL FOR RADIO RESOURCE ASSIGNMENT IN WIRELESS COMMUNICATION SYSTEMS 审中-公开
    无线通信系统中无线电资源分配的控制信道分配

    公开(公告)号:WO2008042513A2

    公开(公告)日:2008-04-10

    申请号:PCT/US2007076468

    申请日:2007-08-22

    CPC classification number: H04W72/042

    Abstract: A wireless communication device for receiving a frame (200) corresponding to a transmission time interval, the frame having a control channel (210) including at least two control channel elements (212, 214) and an embedded bit sequence, the location of which indicates a portion of the control channel used for radio resource assignment, wherein the portion of the control channel used for radio resource assignment may be less than the entire control channel of the frame having the embedded bit sequence, and wherein the at least two frames may use different portions of the control channel for radio resource assignment.

    Abstract translation: 一种无线通信设备,用于接收对应于传输时间间隔的帧(200),所述帧具有包括至少两个控制信道单元(212,214)的控制信道(210)和嵌入的比特序列,其位置指示 所述控制信道的一部分用于无线电资源分配,其中用于无线电资源分配的所述控制信道的所述部分可以小于具有所述嵌入的比特序列的所述帧的整个控制信道,并且其中所述至少两个帧可以使用 控制信道的不同部分用于无线资源分配。

    METHOD AND APPARATUS FOR A SYNCHRONIZATION CHANNEL IN AN OFDMA SYSTEM
    110.
    发明申请
    METHOD AND APPARATUS FOR A SYNCHRONIZATION CHANNEL IN AN OFDMA SYSTEM 审中-公开
    用于OFDMA系统中的同步信道的方法和设备

    公开(公告)号:WO2007092693A3

    公开(公告)日:2007-12-27

    申请号:PCT/US2007061180

    申请日:2007-01-27

    Abstract: A method and apparatus is provided for transmitting an orthogonal frequency domain multiple access (OFDMA) signal including a synchronization channel signal transmitted within a localized portion of a bandwidth of the OFDMA signal (818), the synchronization channel signal having predetermined time domain symmetry within the localized portion of the bandwidth (816). The synchronization channel signal enables an initial acquisition and cell search method with low computational load which provides OFDMA symbol timing detection and frequency error detection by differential processing of sequence elements of the synchronization channel signal (1112) and frame boundary detection and cell specific information detection (1114) in an OFDMA system supporting multiple system bandwidths, both synchronized and un-synchronized systems, a large cell index and an OFDMA symbol structure with both short and long cyclic prefix length.

    Abstract translation: 提供了用于发送包括在OFDMA信号的带宽的局部部分内发送的同步信道信号的正交频域多址(OFDMA)信号(818)的方法和设备,所述同步信道信号在所述OFDMA信号 带宽的本地化部分(816)。 同步信道信号实现具有低计算负荷的初始捕获和小区搜索方法,其通过对同步信道信号(1112)的序列元素进行差分处理来提供OFDMA码元定时检测和频率误差检测,并且帧边界检测和小区特定信息检测( 1114)在OFDMA系统中支持多系统带宽,同步和非同步系统,大小区索引和具有短和长循环前缀长度的OFDMA符号结构。

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