PROTOCOL HEADER COMPRESSION
    2.
    发明申请
    PROTOCOL HEADER COMPRESSION 审中-公开
    协议头压缩

    公开(公告)号:WO0207323A3

    公开(公告)日:2002-09-06

    申请号:PCT/SE0101493

    申请日:2001-06-28

    Abstract: In packet communications that employ header compression/decompression, the computational complexity of checksum generation can be reduced by re-using static checksum information associated with header bits (S) that do not change from header to header. The static checksum information can be used together with information about header bits (T) that do change from header to header, in order to generate a desired checksum (CS). The checksum can then be used to verify a reconstructed header (17) produced from a compressed header by a header decompressor.

    Abstract translation: 在采用报头压缩/解压缩的分组通信中,可以通过重新使用与从报头到报头不改变的报头比特(S)相关联的静态校验和信息来减少校验和生成的计算复杂度。 静态校验和信息可以与关于从头到头改变的头比特(T)的信息一起使用,以便生成期望的校验和(CS)。 然后可以使用校验和来验证由标题解压缩器从压缩报头产生的重建报头(17)。

    EFFICIENT IN-BAND SIGNALING FOR DISCONTINUOUS TRANSMISSION AND CONFIGURATION CHANGES IN ADAPTIVE MULTI-RATE COMMUNICATIONS SYSTEMS
    3.
    发明申请
    EFFICIENT IN-BAND SIGNALING FOR DISCONTINUOUS TRANSMISSION AND CONFIGURATION CHANGES IN ADAPTIVE MULTI-RATE COMMUNICATIONS SYSTEMS 审中-公开
    用于不连续传输的高效带内信号和自适应多速率通信系统中的配置更改

    公开(公告)号:WO0031996A3

    公开(公告)日:2000-08-10

    申请号:PCT/SE9902178

    申请日:1999-11-24

    CPC classification number: H04B7/2656 H04J3/17 H04Q11/04 H04W76/048

    Abstract: Techniques for discontinuous transmission (DTX) and fast in-band signaling of configuration changes and protocol messages in speech communications systems provide cost efficiency in terms of radio transmission capacity, in terms of fixed line transmission, and in terms of implementation effort. An exemplary method for performing discontinuous transmission (DTX) in a communications system in which source data is interleaved for transmission from a first component in the system to a second component in the system includes the steps of detecting periods of source data inactivity, and transmitting silence descriptor (SID) frames from the first to the second component during the periods of source data inactivity, certain of the transmitted SID frames being interleaved using a different interleaving algorithm as compared to that used for source data. For example, the source data can be block diagonally interleaved, and certain of the SID frames can be block interleaved. An exemplary method for effecting configuration changes in a communications system includes the step of transmitting an escape frame in place of a speech data frame, the escape frame including a gross bit pattern to distinguish the escape frame from speech data frames and conveying a configuration change indication. The escape frame can further include a data field to indicate a particular configuration change to be made. For example, where the communications system is an AMR system, an escape frame can be used to change an active codec mode set. Alternatively, an escape frame can be used to change a phase of codec information.

    Abstract translation: 用于不连续传输(DTX)的技术和语音通信系统中的配置改变和协议消息的快速带内信令在无线电传输容量方面,在固定线路传输方面以及在实施方面方面提供了成本效率。 在其中源数据被交织用于从系统中的第一组件传输到系统中的第二组件的通信系统中执行不连续传输(DTX)的示例性方法包括以下步骤:检测源数据不活动的周期,以及传输静音 在源数据不活动期间,从第一分量到第二分量的描述符(SID)帧,使用与用于源数据的交织算法相比较,使用不同的交织算法来交织某些发送的SID帧。 例如,源数据可以是对角交错的块,并且某些SID帧可以被块交织。 用于实现通信系统中的配置改变的示例性方法包括发送转义帧代替语音数据帧的步骤,逃逸帧包括总比特模式以区分逃生帧与语音数据帧,并传送配置改变指示 。 逃生框架还可以包括用于指示要进行的特定配置更改的数据字段。 例如,在通信系统是AMR系统的情况下,可以使用转义帧来改变活动的编解码器模式集合。 或者,可以使用转义帧来改变编解码器信息的相位。

    METHOD AND APPARATUS FOR DISTRIBUTING COMMANDS TO A PLURALITY OF CIRCUIT BLOCKS
    4.
    发明申请
    METHOD AND APPARATUS FOR DISTRIBUTING COMMANDS TO A PLURALITY OF CIRCUIT BLOCKS 审中-公开
    分配给多个电路块的命令的方法和装置

    公开(公告)号:WO9963417A2

    公开(公告)日:1999-12-09

    申请号:PCT/SE9900847

    申请日:1999-05-18

    CPC classification number: G06F9/3842 G06F9/3853 G06F9/3885

    Abstract: A command memory stores commands in memory words. Each command has a label field and an action field. The commands are consolidated to reduce the amount of information stored in the command memory. A control unit interprets the commands and restores the order that was removed by the consolidation. The control unit arranges the action fields as commands in a control word based on information in the label field. When the commands are compressed in the command memory, commands that are not performed in parallel can be stored in the same memory word. Commands that are performed in parallel can be stored in different memory words. The order of the commands in the control word is determined by information in the label field, such as whether the command is performed in parallel with a preceding command. Groups of commands that are decoded to form time-sensitive control words or control words that are the target of jump commands are aligned with a memory word boundary so that the commands forming the control word can be read during a single clock cycle. The group of commands can be aligned with a memory word boundary by inserting a special code or an illegal command in the previous memory word. Commands can be positioned within a group of commands so as to further reduce the size of the command memory. If a conditional command is the first command in a group of commands, the condition applies to all the commands in the group. If a conditional command is not the first command in a command sequence, the condition applies to only the immediately preceding command.

    Abstract translation: 命令存储器将命令存储在存储器字中。 每个命令都有一个标签字段和一个动作字段。 这些命令被合并以减少存储在命令存储器中的信息量。 控制单元解释命令并恢复由合并移除的顺序。 控制单元基于标签字段中的信息将动作字段作为命令排列在控制字中。 当命令在命令存储器中被压缩时,并行执行的命令可以存储在同一个存储器字中。 并行执行的命令可以存储在不同的内存字中。 控制字中的命令的顺序由标签字段中的信息确定,例如该命令是否与先前的命令并行执行。 被解码以形成作为跳转命令的目标的时间敏感控制字或控制字的命令组与存储器字边界对齐,使得可以在单个时钟周期期间读取形成控制字的命令。 通过在前一个存储器字中插入特殊代码或非法命令,可以将命令组与存储器字边界对齐。 命令可以位于一组命令中,以进一步减小命令存储器的大小。 如果条件命令是命令组中的第一个命令,则该条件适用于组中的所有命令。 如果条件命令不是命令序列中的第一个命令,则该条件仅适用于紧接在前的命令。

Patent Agency Ranking