Alternate channel for carrying selected message types

    公开(公告)号:US20060018293A1

    公开(公告)日:2006-01-26

    申请号:US11235725

    申请日:2005-09-26

    IPC分类号: H04B7/212

    摘要: In an illustrative embodiment of the present invention, a channel is allocated to carry messages from each of multiple subscriber units to a base station. Selected messages generated by a subscriber unit that would otherwise be transmitted over an assigned reverse link traffic channel are instead encoded and transmitted to the base station over a shared reverse link channel. Preferably, the shared reverse link channel is time-slotted and each subscriber unit transmits information to the base station in an assigned time slot so that the base station receiving the messages can identify from which subscriber unit a message is sent. Certain bits in a time slot of the shared channel as set by a subscriber unit can be used to communicate a particular message to the base station. For instance, a single bit that is transmitted in a time slot can be encoded to transmit a substitute message from one of the multiple subscriber units to a base station, where the setting of the bit itself indicates a message type.

    Application specific traffic optimization in a wireless link
    2.
    发明申请
    Application specific traffic optimization in a wireless link 有权
    无线链路中的应用特定流量优化

    公开(公告)号:US20050265246A1

    公开(公告)日:2005-12-01

    申请号:US11193587

    申请日:2005-07-29

    摘要: A packet data system such as a TCP/IP network transmits packets containing a variety of data types along links in the network. Packets are transmitted in a stream between nodes interconnected by the links, which conform to a transport layer protocol such as TCP, UDP, and RSTP, and include wireless links, which transmit packets using a radio frequency (RF) medium. Typical protocols, however, are usually developed to optimize throughput and minimize data error and loss over wired links, and do not lend themselves well to a wireless link. By examining the data in a packet, performance characteristics such as a port number are determined. The performance characteristics indicate the application type, and therefore, the data type, of the packets carried on the connection. Since certain data types, such as streaming audio and video, are more loss tolerant, determination of the data type is used to compute link control parameters for the wireless link that are optimal to the type of data being transmitted over the link.

    摘要翻译: 诸如TCP / IP网络的分组数据系统沿着网络中的链路发送包含各种数据类型的分组。 分组在通过链路互连的节点之间的流中传输,所述链路符合诸如TCP,UDP和RSTP之类的传输层协议,并且包括使用射频(RF)介质传输分组的无线链路。 然而,通常开发典型的协议是为了优化吞吐量,并通过有线链路最小化数据错误和损失,并且不适合于无线链路。 通过检查数据包中的数据,确定端口号等性能特征。 性能特征表示连接上携带的分组的应用类型,因此表示数据类型。 由于诸如流音频和视频之类的某些数据类型具有更大的容错能力,所以使用数据类型的确定来计算无线链路的链路控制参数,这些链路控制参数对于通过链路传输的数据类型是最佳的。

    Network based media enhancement function based on an identifier
    3.
    发明授权
    Network based media enhancement function based on an identifier 有权
    基于网络的媒体增强功能,基于标识符

    公开(公告)号:US09020621B1

    公开(公告)日:2015-04-28

    申请号:US12948515

    申请日:2010-11-17

    IPC分类号: G06F17/00 H04R5/04 H04R25/00

    摘要: A network based processing element for processing audio information improves the understanding of speech or music for intended listeners based on an identifier. The processing involves performing a media enhancement function, where a parameter affecting the utilization or performance aspects of the media enhancement function are dependent upon the identifier. A “media enhancement server” (MES) is included, whereby the audio of a telephone call, video call, multimedia program or other stream to be heard by a specific listener is processed using a personalized audio enhancement parameter to enhance the audio signal such that the listener will enjoy a benefit, such as better comprehension of the information, reduced listening effort, and more listening comfort during the call. The personalized parameters are stored and retrieved based upon the identifier, and used within the MES. The audio portion of the call or stream could be speech, music, or a combination.

    摘要翻译: 用于处理音频信息的基于网络的处理元件基于标识符改善对于预期听众的语音或音乐的理解。 该处理涉及执行媒体增强功能,其中影响媒体增强功能的利用或性能方面的参数取决于标识符。 包括“媒体增强服务器”(MES),由此使用个性化音频增强参数来处理要由特定收听者听到的电话呼叫,视频呼叫,多媒体节目或其他流的音频,以增强音频信号,使得 听众将享受到更好的理解信息,减少听力,以及更多的聆听舒适性。 基于标识符存储和检索个性化参数,并在MES中使用。 呼叫或流的音频部分可以是语音,音乐或组合。

    Reverse link correlation filter in wireless communication systems
    4.
    发明申请
    Reverse link correlation filter in wireless communication systems 失效
    无线通信系统中的反向链路相关滤波器

    公开(公告)号:US20080075150A1

    公开(公告)日:2008-03-27

    申请号:US11901571

    申请日:2007-09-17

    IPC分类号: H04B1/69

    摘要: A single, common correlation filter (CF) core is provided in a receiver for recovery of data from received code division multiple access (CDMA) signals. Signals are received over CDMA channels with different data rates, where the received signals include user information such as pilot and data symbols that have been spread according to different despreading rates including tier 1, tier 2 and tier 3 rates, where tier 1 is the smallest despreading rate. The received signal is correlated at the smallest despreading rate in the correlation filter (CF) by time multiplexing delayed versions of the pseudorandom noise (PN) code. The correlated information is then demultiplexed and pilot-aided QPSK demodulated. The demodulated information is summed at the proper integer multiple of the tier 1 rate to achieve tier 2 and tier 3 despreading rates. According to an embodiment, the three strongest multipaths components in terms of the received power are selected in a window or time period for optimal information recovery.

    摘要翻译: 在接收机中提供单个公共相关滤波器(CF)核,用于从接收的码分多址(CDMA)信号中恢复数据。 在具有不同数据速率的CDMA信道上接收信号,其中所接收的信号包括诸如导频和数据符号之类的用户信息,所述导频和数据符号根据不同的解扩速率(包括层1,层2和层3速率)进行扩展,其中层1是最小的 解散率。 接收到的信号通过伪随机噪声(PN)码的延迟版本的时间复用以相关滤波器(CF)中的最小解扩频率相关。 然后将相关信息解复用并导频辅助QPSK解调。 解调信息以1级速率的适当整数倍相加,以实现2级和3级解扩速率。 根据实施例,在用于最佳信息恢复的窗口或时间段中选择关于接收功率的三个最强多径分量。

    Coded reverse link messages for closed-loop power control of forward link control messages
    7.
    发明申请
    Coded reverse link messages for closed-loop power control of forward link control messages 审中-公开
    用于前向链路控制消息的闭环功率控制的编码反向链路消息

    公开(公告)号:US20070206542A1

    公开(公告)日:2007-09-06

    申请号:US11799155

    申请日:2007-05-01

    申请人: James Proctor

    发明人: James Proctor

    IPC分类号: H04B7/216

    摘要: Multiple field units in a CDMA system are synchronized for communication with a base station using shared forward and reverse link channels. In an illustrative embodiment, each field unit is assigned a time slot in a forward link channel to receive messages from the base station. Likewise, each field unit is assigned a time slot on a common reverse link channel for transmitting messages to the base station. Timing alignment and power level control among each of many field units and the base station is achieved by analyzing coded transmissions received at the base station in a corresponding time slot as transmitted by each field unit. The codes may be orthogonal, pseudonoise (PN), or other codes. The power level of forward control channel messages can thus be individually controlled. In this way, minimal resources are deployed to maintain communication and precise synchronization between a base station and each of multiple users, minimizing collisions between field units transmitting in adjacent time slots on the reverse link.

    摘要翻译: CDMA系统中的多个场单元被同步,以使用共享的前向和反向链路信道与基站进行通信。 在说明性实施例中,每个现场单元在前向链路信道中分配时隙以从基站接收消息。 类似地,每个现场单元在公共反向链路信道上分配一个时隙,用于向基站发送消息。 通过分析在每个场单元发送的相应时隙中在基站处接收的编码传输来实现许多场单元和基站中的每一个中的定时对准和功率电平控制。 代码可以是正交,伪噪声(PN)或其他代码。 因此,可以单独控制前向控制信道消息的功率级别。 以这种方式,部署最小资源以维持基站与多个用户中的每一个之间的通信和精确同步,从而最小化在反向链路上的相邻时隙中发送的现场单元之间的冲突。

    Control message management in physical layer repeater
    8.
    发明申请
    Control message management in physical layer repeater 有权
    物理层中继器控制消息管理

    公开(公告)号:US20070025486A1

    公开(公告)日:2007-02-01

    申请号:US11448155

    申请日:2006-06-07

    IPC分类号: H04L7/00

    CPC分类号: H04B7/2606 H04B7/15535

    摘要: A repeater is configured to selectively generate and transmit control message packets between wireless stations on both a transmit side and a receive side of the repeater. The repeater manages and manipulates an end to end protocol of the control message packets in a manner that does not change media access control (MAC) addresses of the end to end protocol so as to achieve a network objective, such as preventing other transmitters from transmitting while the repeater repeats a signal from its receive side to its transmit side. The control message management is applicable to analog signal repeaters as well as digital repeaters, such as symbol to symbol or packet to packet repeaters, in which physical layer control message management is performed.

    摘要翻译: 中继器被配置为在中继器的发送侧和接收侧上的无线站之间选择性地生成和发送控制消息分组。 中继器以不改变端到端协议的媒体访问控制(MAC)地址的方式管理和操纵控制消息分组的端到端协议,以便实现网络目的,例如防止其他发射机发射 而中继器将从其接收侧向其发送侧的信号重复。 控制消息管理适用于模拟信号中继器以及数字中继器,例如符号到符号或数据包到分组中继器,其中执行物理层控制消息管理。

    Maintenance link using active/standby request channels

    公开(公告)号:US20060274711A1

    公开(公告)日:2006-12-07

    申请号:US11486531

    申请日:2006-07-14

    IPC分类号: H04B7/216

    CPC分类号: H04W56/0085 H04B7/2637

    摘要: Multiple field units in a CDMA system are synchronized for communication with a base station using shared forward and reverse link channels. In an illustrative embodiment, each field unit is assigned a time slot in a forward link channel to receive messages from the base station. Likewise, each field unit is assigned a time slot on a common reverse link channel for transmitting messages to the base station. Timing alignment and power level control among each of many field units and the base station is achieved by analyzing messages received at the base station in a corresponding time slot as transmitted by each field unit. Thereafter, a message is transmitted from the base station in a corresponding time slot to a particular field unit for adjusting its timing or power level so that future messages transmitted from the field unit are received in the appropriate time slot at the base station at a desired power level. In this way, minimal resources are deployed to maintain communication and precise synchronization between a base station and each of multiple users, minimizing collisions between field units transmitting in adjacent time slots on the reverse link. This method reduces the frequency a field unit must rely on the use of a slotted aloha random access channel according to IS-95.