公开(公告)号：AT432584T

公开(公告)日：2009-06-15

申请号：AT03104137

申请日：2003-11-10

Applicant: MOTOROLA INC

Inventor： DOLGOV KONSTANTIN ,  FRANDSEN SVEND ,  JAKOBSEN KEN ,  PEDERSEN KRISTIAN ,  BLOMBERG HANS

IPC: H04L29/12 ,  H04L12/28 ,  H04L12/56 ,  H04W4/00 ,  H04W84/08

Abstract: A method of communicating information in a communication system wherein a fixed host (162) is operably coupled to a communication network (350) via a gateway general packet radio server (GPRS) service node (GGSN) (174). The method includes the steps of transmitting (450) a message to the GGSN (174), by the fixed host (162), which is preferably a console. The message is sent using a GPRS transport protocol tunnel and includes an access point name (APN). The message requests (455) an Internet Protocol address relating to the APN, from a database (410). The method includes transmitting (460, 465) the Internet Protocol address from said database to the fixed host (162), and the fixed host (162) initiates a communication session (425) with the communication network (350) using the Internet Protocol address. A communication system and fixed host for use in the method are also provided. In this manner, a fixed host such as a console is able to obtain IP address information without requiring maintaining two (or multiple) IP addresses belonging to two (or multiple) different IP spaces that the fixed host communicates with.

公开(公告)号：WO2008021705A2

公开(公告)日：2008-02-21

申请号：PCT/US2007074700

申请日：2007-07-30

Applicant: MOTOROLA INC ,  PEDERSEN IB FORDSMAND ,  BLOMBERG HANS ,  SVENNINGSEN NIELS

Inventor： PEDERSEN IB FORDSMAND ,  BLOMBERG HANS ,  SVENNINGSEN NIELS

IPC: H04Q7/32

CPC classification number: H04B1/0475

Abstract: An RF (radio frequency) transmitter (100) includes: a forward path (102); an RF power amplifier (126); a feedback path (104), coupled from the power amplifier to the forward path to form a linearising loop; an RF power meter (135) for measuring an output power level of an RF signal produced by the power amplifier and for providing a signal indicating the output power level and a processor (101) for applying periodically to the forward path in a training mode of the transmitter a training signal including an I component including a first ramped waveform portion (405) and a Q component including a second ramped waveform portion (411), and for sampling the signal indicating output power level to find minima corresponding to optimal positions on the first and second ramped waveform portions and for issuing correction signals indicating corresponding DC offset adjustment levels to be applied in an operational mode.

Abstract translation: RF（射频）发射机（100）包括：前向路径（102）; RF功率放大器（126）; 反馈路径（104），其从功率放大器耦合到前向路径以形成线性化环路; RF功率计（135），用于测量由功率放大器产生的RF信号的输出功率电平，并提供指示输出功率电平的信号;以及处理器（101），用于以训练模式 所述发射机包括包括第一斜坡波形部分（405）和包括第二斜坡波形部分（411）的Q分量的I分量的训练信号，并且用于对指示输出功率电平的信号进行采样以找到对应于最佳位置的最小值 第一和第二斜坡波形部分，并且用于发出指示在操作模式中应用的对应的DC偏移调整水平的校正信号。