Method and apparatus for time efficient retransmission using symbol accumulation
    3.
    发明授权
    Method and apparatus for time efficient retransmission using symbol accumulation 有权
    对于有效的重发的方法和设备装置Symbolakkumulierung

    公开(公告)号:EP1720278B1

    公开(公告)日:2013-07-03

    申请号:EP06118269.7

    申请日:1998-11-12

    IPC分类号: H04L1/18

    摘要: In a method for efficient retransmission of data, symbol accumulation is used to retransmit a packet received in error at a lower energy-per-bit level concurrently in the same frame with a new packet. The destination device receives the data transmission and retransmission, demodulates the signal, and separates the received data into the new and retransmitted packet. The destination device then accumulates the energy of the retransmitted packet with the energy already accumulated for the packet received in error and decodes the accumulated packet. The accumulation of the additional energy provided by the subsequent retransmissions improves the probability of a correct decoding. The throughput rate can be improved since the packet received in error is retransmitted concurrently with the transmission of the new data packet. The capacity is maximized since the retransmission of the packet received in error is at a lower energy level than that of the new packet. The method includes puncturing the code symbols of a data packet for transmission in accordance with a first puncturing pattern. If decoding of the punctured transmitted packet of data is unsuccessful, a negative acknowledgement is received at the source device and the code symbols of the data packet are then punctured in accordance with a second pattern for transmission in response to the receipt of the negative acknowledgement.

    Transport format combination selection for compressed mode in a W-CDMA system
    5.
    发明授权
    Transport format combination selection for compressed mode in a W-CDMA system 有权
    传输格式组合选择用于在W-CDMA系统压缩模式

    公开(公告)号:EP1871016B1

    公开(公告)日:2011-03-23

    申请号:EP07117442.9

    申请日:2002-11-12

    IPC分类号: H04B7/005

    摘要: Techniques for determining valid (i.e., supported) TFCs from among all configured TFCs for normal and compressed modes. These techniques maintain sufficient historical information such that 'TFC qualification' may be accurately performed. In a first scheme, Tx_power_requirement states are maintained for different combinations of each TFC. One combination is applicable for each TFC at each TFC interval, and valid TFCs are determined from applicable combinations in the proper state(s). In a second scheme, two Tx_power_requirement states are maintained for each TFC for the normal and compressed modes. In a third scheme, a single Tx_power_requirement state is maintained for each TFC for both modes based on a particular relative power requirement. In a fourth scheme, Tx_power_requirement states are maintained for a set of relative 'bins' that cover the total range of required transmit power for all TFCs. And in a fifth scheme, a set of relative power requirement thresholds are maintained.

    Dynamic channel configuration in a cellular radio network
    7.
    发明公开
    Dynamic channel configuration in a cellular radio network 有权
    蜂窝无线网络中的动态信道配置

    公开(公告)号:EP1801993A1

    公开(公告)日:2007-06-27

    申请号:EP07007460.4

    申请日:2003-02-19

    IPC分类号: H04B1/713 H04B1/707

    摘要: Method and apparatus for determining a transmission configuration for a dedicated channel in a wireless communication system. In one embodiment, an optimum configuration is determined based on minimizing Peak-to-Average Ratio (PAR) of the channel. The configuration is defined as a transmission pair of transmission branch and spreading code. The transmission branch may be the In-Phase (I) branch or the Quadrature (Q) branch. PAR analysis may be performed off-line to determine the optimum configuration. In operation, if the spreading code of the optimum configuration is used by another channel, the next best optimum code is used.

    摘要翻译: 用于确定无线通信系统中专用信道的传输配置的方法和设备。 在一个实施例中,基于最小化信道的峰均比(PAR)来确定最佳配置。 该配置被定义为传输分支和扩展码的传输对。 传输分支可以是同相(I)分支或正交(Q)分支。 PAR分析可以离线执行以确定最佳配置。 在操作中,如果最佳配置的扩频码被另一个信道使用,则使用下一个最佳的最佳码。

    METHOD AND APPARATUS FOR DATA SYMBOL AND CONTROL SYMBOL MULTIPLEXING

    公开(公告)号:EP3525381A1

    公开(公告)日:2019-08-14

    申请号:EP18212356.2

    申请日:2007-09-04

    摘要: System (s) and method (s) are provided for transmitting data code Symbols and control code symbols spanning disparate transmission time intervals in the uplink. Data and control symbols that overlap in time-domain within a transmission time interval are- multiplexed and transmitted employing resources scheduled for data transmission (1030), whereas data and control code symbols that are not multiplexed are transmitted in respective allocated resources (1040). Multiplexing in conjunction with localized and distributed resource scheduling preserves the single-carrier characteristics of a single-carrier frequency division multiple access system.

    Method and Apparatus for Controlling Transmit Power of Multiple Channels in a CDMA Communication System
    10.
    发明公开
    Method and Apparatus for Controlling Transmit Power of Multiple Channels in a CDMA Communication System 审中-公开
    用于控制在一个CDMA通信系统的多个信道的发射功率的方法和设备

    公开(公告)号:EP2408241A2

    公开(公告)日:2012-01-18

    申请号:EP11185301.6

    申请日:2002-02-15

    摘要: Techniques to support independent power control of multiple channels in CDMA systems (e.g., a W-CDMA system) that define a single power control feedback steam on the uplink, which is to be used for downlink power control. In one aspect, the single feedback stream is 'time shared' among multiple channels requiring individual power control. Various time-sharing schemes may be used to implement multiple (substantially parallel) feedback substreams based on the single feedback stream, and different combination of feedback rates may also be achieved for the substreams. Each feedback substream may be assigned to, and used for power control of, a respective channel. In another aspect, multiple feedback substreams are implemented based on multiple fields in newly defined slot formats.

    摘要翻译: 技术,以支持在CDMA系统中的多个通道(E. G.,一个W-CDMA系统)的独立的功率控制没有在上行链路上定义单个功率控制反馈蒸汽,所有这些将被用于下行链路功率控制。 在一个方面,所述单个反馈流是多个通道需要个别功率控制之间的共享时间'。 各种分时方案可被用于实现多个(基本上平行的)反馈子基于所述单个反馈流,因此反馈速率的不同组合,可以实现为子流。 每个反馈子流可被分配给,并且用于,一个信道respectivement功率控制。 在另一个方面,多个反馈子是基于新定义的时隙格式的多个字段执行。