Superposition coding in a wireless communication system

    公开(公告)号:US20060171347A1

    公开(公告)日:2006-08-03

    申请号:US11046267

    申请日:2005-01-28

    CPC分类号: H04W72/1263 H04W28/18

    摘要: A system to communicate a superposition coded packet from a base station to a plurality of remote stations. At the base station, from a list of user candidates for superposition coding a most deserving user may be determined. Those user candidates with a requested data rate less than that of the most deserving user may be eliminated. A superposition coded packet may be compiled from the remaining user candidates. On receipt, the most deserving user may process the superposition coded packet by assuming a predetermined power allocation. Further, if a user successfully in decodes early, power may be re-allocated to another user.

    Apparatus and method for transmit power savings
    3.
    发明授权
    Apparatus and method for transmit power savings 有权
    用于传输功率节省的装置和方法

    公开(公告)号:US08416725B2

    公开(公告)日:2013-04-09

    申请号:US12703144

    申请日:2010-02-09

    IPC分类号: G08C17/00

    摘要: An apparatus and method for transmit power savings comprising determining a rate of a previous frame; determining if a current frame is an ALWAYS-ON frame, wherein the current frame temporally succeeds the previous frame; and either ignoring every other reverse link power control (RLPC) bits received on a forward power control subchannel (F-PCSCH) or applying every RLPC bits received on the F-PCSCH. In one aspect, the apparatus and method for transmit power savings comprising using a rate determination algorithm (RDA) to determine a rate of a previous frame; detecting a pilot gating pattern at the end of the previous frame; comparing the rate of the previous frame to a threshold; determining if a current frame is an ALWAYS-ON frame; and declaring the current frame to be a 0 bps frame and puncturing the F-PCSCH to a predetermined frequency.

    摘要翻译: 一种用于发射功率节省的装置和方法,包括:确定先前帧的速率; 确定当前帧是否是一个ALWAYS-ON帧,其中当前帧在时间上成功接收前一帧; 并且忽略在正向功率控制子信道(F-PCSCH)上接收的每个其他反向链路功率控制(RLPC)比特,或者应用在F-PCSCH上接收的每个RLPC比特。 一方面,用于传输功率节省的装置和方法包括使用速率确定算法(RDA)来确定先前帧的速率; 在前一帧结束时检测导频门控模式; 将前一帧的速率与阈值进行比较; 确定当前帧是否是始发帧; 并且将当前帧声明为0bps帧并将F-PCSCH打孔到预定频率。

    APPARATUS AND METHOD FOR CONTROLLING REVERSE LINK INTERFERENCE AMONG ACCESS TERMINALS IN WIRELESS COMMUNICATIONS
    4.
    发明申请
    APPARATUS AND METHOD FOR CONTROLLING REVERSE LINK INTERFERENCE AMONG ACCESS TERMINALS IN WIRELESS COMMUNICATIONS 有权
    用于控制无线通信中接入终端的反向链路干扰的装置和方法

    公开(公告)号:US20080032734A1

    公开(公告)日:2008-02-07

    申请号:US11870278

    申请日:2007-10-10

    IPC分类号: H04Q7/20 H04B17/00

    摘要: In a wireless communication system, an apparatus and a method are provided for controlling reverse link interference among access terminals that are power controlled by a sector of a base station. In an embodiment, the maximum effective noise power spectral density is used as a parameter for controlling the level of reverse link loading, by setting a reverse activity bit (RAB) to signal the access terminals to reduce their data rates in order to minimize interference between the access terminals if the maximum effective noise power spectral density is above a predetermined threshold.

    摘要翻译: 在无线通信系统中,提供了一种用于控制由基站的扇区进行功率控制的接入终端之间的反向链路干扰的装置和方法。 在一个实施例中,最大有效噪声功率谱密度用作控制反向链路负载水平的参数,通过设置反向活动比特(RAB)来向接入终端发信号以减小它们的数据速率,以便最小化干扰 如果最大有效噪声功率谱密度高于预定阈值,则接入终端。

    METHOD AND APPARATUS FOR A CONTROL CHANNEL POWER ALLOCATION IN A COMMUNICATION SYSTEM
    5.
    发明申请
    METHOD AND APPARATUS FOR A CONTROL CHANNEL POWER ALLOCATION IN A COMMUNICATION SYSTEM 失效
    用于通信系统中控制信道功率分配的方法和装置

    公开(公告)号:US20070127407A1

    公开(公告)日:2007-06-07

    申请号:US11670837

    申请日:2007-02-02

    IPC分类号: H04B7/185

    摘要: An apparatus and a method for a control channel power allocation in a communication system are disclosed. The method of control channel power allocation in an embodiment includes sorting a plurality of access terminals in an order of increasing required medium access control (MAC) channel power into a plurality of bins, sorting the access terminals with equal required MAC channel power in an order of decreasing forward link signal to interference and noise ratio (FL_SINR) if two or more access terminals have equal required MAC channel power, and determining total available ARQ power based upon total MAC channel power, total power allocated to reverse power control (RPC) channels, and total power allocated to reverse activity bit (RAB) channels.

    摘要翻译: 公开了一种用于通信系统中的控制信道功率分配的装置和方法。 一个实施例中的控制信道功率分配的方法包括按照将所需的媒体接入控制(MAC)信道功率增加到多个小区中的顺序对多个接入终端进行排序,按照相同的所需MAC信道功率对接入终端进行排序 如果两个或多个接入终端具有相等的所需MAC信道功率,则基于总MAC信道功率,分配给反向功率控制(RPC)信道的总功率确定总可用ARQ功率,从而将前向链路信号降低到干扰和噪声比(FL_SINR) ,以及分配给反向活动位(RAB)通道的总功率。

    Multi-carrier, multi-flow, reverse link medium access control for a communication system
    6.
    发明申请
    Multi-carrier, multi-flow, reverse link medium access control for a communication system 审中-公开
    用于通信系统的多载波,多流量,反向链路介质访问控制

    公开(公告)号:US20060203724A1

    公开(公告)日:2006-09-14

    申请号:US11371274

    申请日:2006-03-07

    摘要: The present method and apparatus comprises a communication element comprising a MAC layer that is configured for wireless communication within a sector, wherein said communication element comprises a transmitter, a receiver operably connected to the transmitter, a processor operably connected to the transmitter and the receiver, and memory operably connected to the processor, wherein the communication element is adapted to police data flow, whereby a peak data outflow constraint is applied for each flow across all assigned carriers, select a carrier from a plurality of the assigned carriers for the data flow, and control flow access, whereby a potential allowed transmission power for the data flow on the carrier is determined.

    摘要翻译: 本发明的方法和装置包括通信元件,其包括配置用于扇区内的无线通信的MAC层,其中所述通信元件包括发射机,可操作地连接到发射机的接收机,可操作地连接到发射机和接收机的处理器, 以及存储器,其可操作地连接到所述处理器,其中所述通信元件适于警告数据流,由此针对跨所有分配的载波的每个流应用峰值数据流出约束,从所述数据流的多个所分配的载波中选择载波, 并且控制流量访问,由此确定载体上的数据流的潜在的允许传输功率。

    Asymmetric mode of operation in multi-carrier communication systems
    7.
    发明申请
    Asymmetric mode of operation in multi-carrier communication systems 有权
    多载波通信系统中的不对称操作模式

    公开(公告)号:US20070060165A1

    公开(公告)日:2007-03-15

    申请号:US11486513

    申请日:2006-07-13

    IPC分类号: H04Q7/20

    CPC分类号: H04B7/264 H04L1/16 H04L5/023

    摘要: A method and system for providing asymmetric modes of operation in multi-carrier wireless communication systems. A method may assign a long code mask (LCM) to an information channel associated with a plurality of forward link carriers to transmit data from an access network to an access terminal; and multiplex the information channel on a reverse link carrier. The information channel may include one of data source channel (DSC), data rate control (DRC) and acknowledgment (ACK) information, and the multiplexing may be code division multiplexing (CDM). The AN may instruct the AT on whether to multiplex the DSC information based on feedback from the AT. The method may further offset the ACK information on the reverse link to reduce the reverse link peak to average, CDM the information channel on an I-branch and on a Q-branch, and transmit the code division multiplexed information channel on the reverse link carrier.

    摘要翻译: 一种用于在多载波无线通信系统中提供不对称操作模式的方法和系统。 方法可以将长码掩码(LCM)分配给与多个前向链路载波相关联的信息信道,以将数据从接入网络传输到接入终端; 并在反向链路载波上复用信息信道。 信息信道可以包括数据源信道(DSC),数据速率控制(DRC)和确认(ACK)信息之一,并且复用可以是码分复用(CDM)。 AN可以根据AT的反馈来指示AT是否复用DSC信息。 该方法还可以抵消反向链路上的ACK信息,以减少反向链路峰值平均,CDM在I分支和Q分支上的信道,并在反向链路载波上发送码分多路复用信息信道 。

    Method and system for a data transmission in a communication system
    8.
    发明申请
    Method and system for a data transmission in a communication system 有权
    通信系统中数据传输的方法和系统

    公开(公告)号:US20060291389A1

    公开(公告)日:2006-12-28

    申请号:US11512881

    申请日:2006-08-29

    IPC分类号: H04L12/26 H04L12/56

    摘要: Methods and apparatus for a data transmission in a communication system are disclosed. Each of a subset of plural access terminals desiring to transmit user data in an interval transmits a request to transmit in the interval to an access network. The access network makes a decision to schedule at least one of the subset of the plural access terminals to transmit in the interval in accordance with the request. At least one access point of the access network transmits the decision to the plural access terminals.

    摘要翻译: 公开了一种在通信系统中进行数据传输的方法和装置。 期望在间隔中发送用户数据的多个接入终端的子集中的每一个将间隔中的发送请求发送到接入网络。 所述接入网络作出决定,按照所述请求,在所述间隔内调度所述多个接入终端的所述子集中的至少一个进行发送。 接入网的至少一个接入点将决定发送到多个接入终端。

    Preamble miss detection in transmission of multi-slot packets
    10.
    发明申请
    Preamble miss detection in transmission of multi-slot packets 失效
    在多时隙分组传输中的前导码错误检测

    公开(公告)号:US20060109810A1

    公开(公告)日:2006-05-25

    申请号:US10997271

    申请日:2004-11-24

    IPC分类号: H04Q7/00

    CPC分类号: H04L1/1819

    摘要: A communication system (100) transmits data packets from a sender (120A) to a receiver (130A) using hybrid automatic repeat request processes. The sender redundantly encodes each packet, divides the packet into subpackets, and sends the subpackets to the receiver in a time-interlaced manner. When the receiver returns a positive acknowledgement of a subpacket using an acknowledgement channel, the sender terminates transmission of the subpackets. The sender interprets the signals on the acknowledgement channel using a metric resulting from correlation of the signals with positive and negative acknowledgement symbols. The sender interprets low correlation of the acknowledgement channel signal with both positive and negative acknowledgement symbols as a preamble miss, and terminates transmission of the subpackets. After termination, the packet may be rescheduled for transmission. Early termination of packet transmission after a preamble miss improves bandwidth utilization and decreases latency of the packet with the missed preamble.

    摘要翻译: 通信系统(100)使用混合自动重复请求过程将数据分组从发送器(120A)发送到接收机(130A)。 发送方对每个数据包进行冗余编码,将数据包划分为子数据包,并以时间间隔方式将子数据包发送给接收方。 当接收方使用确认信道返回子包的肯定确认时,发送方终止子数据包的传输。 发送者使用由信号与正和负确认符号的相关产生的度量来确认确认信道上的信号。 发送方解释确认信道信号与正和负确认符号的低相关性作为前导码缺失,并终止子分组的传输。 终止之后,可以重新安排分组以进行传输。 前导码丢失后的数据包传输的提前终止提高了带宽利用率并降低了丢失前导码的数据包的等待时间。