DEVICES AND METHOD FOR DIFFUSING SYMBOLS IN COMMUNICATION SYSTEM

    公开(公告)号:JP2002261654A

    公开(公告)日:2002-09-13

    申请号:JP2002035546

    申请日:2002-02-13

    Applicant: MOTOROLA INC

    Abstract: PROBLEM TO BE SOLVED: To provide devices and a method of transmission designed to reduce the error occurrence in a communication system. SOLUTION: A diffuser (216) is provided with a code generator (301) and an exclusive OR circuit (303). As a good example of how this invention works, the code generator (301) generates a code having length and value which are dependent on the current transmission rate. Then, this code XORs with the coming data stream to generate diffused data.

    2.
    发明专利
    未知

    公开(公告)号:DE60218176T2

    公开(公告)日:2007-06-21

    申请号:DE60218176

    申请日:2002-06-28

    Applicant: MOTOROLA INC

    Abstract: To address the need for dispatch in a CDMA communication system, each mobile unit ( 309, 319 ) and CBSC ( 301, 311 ) involved in a call are allowed to establish an independent RLP session between them. Each session contains its own unique RLP sequence numbers that are not shared. Reverse link sequence numbers are passed from the source CBSC ( 301, 311 ) (serving the "talking" mobile) to the target CBSC(s) ( 301, 311 ) (serving the "listening" mobiles). However, instead of being directly used by the target CBSC(s) ( 301, 311 ) for its forward link RLP sequence number, the sequence numbers passed to the CBSC ( 301, 311 ) is translated to the existing target CBSCs ( 301, 311 ) current RLP sequence numbers.

    3.
    发明专利
    未知

    公开(公告)号:DE69907160T2

    公开(公告)日:2003-10-23

    申请号:DE69907160

    申请日:1999-02-04

    Applicant: MOTOROLA INC

    Abstract: The present invention provides a method for determining a need to retransmit a message that includes a user frame from a base station (104) in a communication system (100). A signaling message is inserted into the user frame. The user frame is transmitted from the base station (104) and received at a mobile unit (102). The mobile unit (102) transmits an erasure indicator bit to indicate that the user frame was received by the mobile unit (102). The base station (104) receives the erasure indicator bit. It is then determined, based at least in part upon the erasure indicator bit, whether the signaling message was accurately transmitted by the base station (104) and received by the mobile unit (102). If the signaling message was not accurately transmitted and received, the base station (104) will retrieve the stored signaling message and retransmit the signaling message to the mobile unit (102).

    METHOD AND APPARATUS FOR POWER CONTROL ON A DISCONTINUOUS TRANSMISSION CHANNEL IN A CDMA SYSTEM
    4.
    发明申请
    METHOD AND APPARATUS FOR POWER CONTROL ON A DISCONTINUOUS TRANSMISSION CHANNEL IN A CDMA SYSTEM 审中-公开
    CDMA系统中不连续传输信道功率控制的方法与装置

    公开(公告)号:WO2004051871A3

    公开(公告)日:2004-11-04

    申请号:PCT/US0338136

    申请日:2003-11-25

    Applicant: MOTOROLA INC

    CPC classification number: H04W52/325 H04W52/12 H04W52/20

    Abstract: A wireless communications system and methods therein uses information, such as frame sequence numbers to improve DCCH or SCH power control. The system includes a base transceiver station (BTS) (14) with a frame type determinator (32) for determining whether the recovered data frames are good, erased, or non-transmitted data frames. A selector distribution unit (SDU) (16) includes a frame type verification processing block (36) for verifying that the frame type determinations made by the frame type determinator are correct based on the sequence numbers from received good data frames, and a power control block (38) for transmitting subscriber device power control information based on frame type determination verifications made by the verification processing block.

    TRANSMISSION SCHEME WITHIN A COMMUNICATION SYSTEM
    5.
    发明申请
    TRANSMISSION SCHEME WITHIN A COMMUNICATION SYSTEM 审中-公开
    通信系统内的传输方案

    公开(公告)号:WO03013047A3

    公开(公告)日:2003-05-30

    申请号:PCT/US0220546

    申请日:2002-06-28

    Applicant: MOTOROLA INC

    CPC classification number: H04L1/165 H04L1/1809 H04L1/1874 H04L2001/0092

    Abstract: To address the need for dispatch in a CDMA communication system, each mobile unit (309, 319) and CBSC (301, 311) involved in a call are allowed to establish an independent RLP session between them. Each session contains its own unique RLP sequence numbers that are not shared. Reverse link sequence numbers are passed from the source CBSC (301, 311) (serving the "talking" mobile) to the target CBSC(s) (301, 311) (serving the "listening" mobiles). However, instead of being directly used by the target CBSC(s) (301, 311) for its forward link RLP sequence number, the sequence numbers passed to the CBSC (301, 311) is translated to the existing target CBSCs (301, 311) current RLP sequence numbers.

    Abstract translation: 为了解决CDMA通信系统中的调度需求,允许呼叫中涉及的每个移动单元(309,319)和CBSC(301,311)在它们之间建立独立的RLP会话。 每个会话都包含不共享的唯一RLP序列号。 反向链路序列号从源CBSC(301,311)(服务于“通话”移动台)传送到目标CBSC(301,311)(服务于“收听”移动台)。 然而,不是由目标CBSC(301,311)直接使用其前向链路RLP序列号,而是将传递给CBSC(301,311)的序列号转换成现有目标CBSC(301,311) )当前RLP序列号。

    6.
    发明专利
    未知

    公开(公告)号:SE0103616L

    公开(公告)日:2001-10-31

    申请号:SE0103616

    申请日:2001-10-31

    Applicant: MOTOROLA INC

    Abstract: In a data transmitter having a data encoder, an encoder mode is detected. Thereafter, an excluded codeword output by the encoder operating in the encoder mode is identified. Next, a selected bit in the excluded codeword caused to have a predetermined value to produce a non-excluded codeword. Finally, the excluded codeword is substituted with the non-excluded codeword, wherein the non-excluded codeword is selected to mitigate effects of a decoding error in a receiver associated with the excluded codeword.

    7.
    发明专利
    未知

    公开(公告)号:DE69907160D1

    公开(公告)日:2003-05-28

    申请号:DE69907160

    申请日:1999-02-04

    Applicant: MOTOROLA INC

    Abstract: The present invention provides a method for determining a need to retransmit a message that includes a user frame from a base station (104) in a communication system (100). A signaling message is inserted into the user frame. The user frame is transmitted from the base station (104) and received at a mobile unit (102). The mobile unit (102) transmits an erasure indicator bit to indicate that the user frame was received by the mobile unit (102). The base station (104) receives the erasure indicator bit. It is then determined, based at least in part upon the erasure indicator bit, whether the signaling message was accurately transmitted by the base station (104) and received by the mobile unit (102). If the signaling message was not accurately transmitted and received, the base station (104) will retrieve the stored signaling message and retransmit the signaling message to the mobile unit (102).

    8.
    发明专利
    未知

    公开(公告)号:SE0103616D0

    公开(公告)日:2001-10-31

    申请号:SE0103616

    申请日:2001-10-31

    Applicant: MOTOROLA INC

    Abstract: In a data transmitter having a data encoder, an encoder mode is detected. Thereafter, an excluded codeword output by the encoder operating in the encoder mode is identified. Next, a selected bit in the excluded codeword caused to have a predetermined value to produce a non-excluded codeword. Finally, the excluded codeword is substituted with the non-excluded codeword, wherein the non-excluded codeword is selected to mitigate effects of a decoding error in a receiver associated with the excluded codeword.

    METHOD AND APPARATUS IN A WIRELESS COMMUNICATION SYSTEM
    9.
    发明公开
    METHOD AND APPARATUS IN A WIRELESS COMMUNICATION SYSTEM 审中-公开
    方法和设备进行无线传输新闻

    公开(公告)号:EP1197022A4

    公开(公告)日:2004-09-15

    申请号:EP00923542

    申请日:2000-04-19

    Applicant: MOTOROLA INC

    CPC classification number: H04W4/00 H04L1/1809 H04L2001/0092

    Abstract: A method and apparatus in a communication system includes establishing a communication link between a first and second mobile communication resources (111, 114) via a series of land-based communication resources (121, 131, 132, 124) which have a first and last ((121, 131), (132, 125)) land-based communication resources. The first and second mobiles (111, 114) have a first and last wireless connection (161, 164) respectively. The first mobile (111) transmits in sequence sequentially numbered packets of data via the first wireless connection (161) to the first land-based communication resource (121, 131). A detecting communication resource, including one of the land-based communication resources (121, 131, 132, 124), detects reception of out of sequence packets of data, and transmits out of sequence the sequentially numbered packets of data to communication resources subsequent in series to the detecting communication resource including the second mobile (114) via the last wireless connection (164).

    METHOD FOR DETERMINING A NEED TO RETRANSMIT A MESSAGE IN A COMMUNICATION SYSTEM
    10.
    发明公开
    METHOD FOR DETERMINING A NEED TO RETRANSMIT A MESSAGE IN A COMMUNICATION SYSTEM 有权
    方法确定的消息再次发送NEED

    公开(公告)号:EP1058922A4

    公开(公告)日:2001-09-12

    申请号:EP99905741

    申请日:1999-02-04

    Applicant: MOTOROLA INC

    CPC classification number: H04L1/1692 H04L1/1657 H04L1/18

    Abstract: The present invention provides a method for determining a need to retransmit a message that includes a user frame from a base station (104) in a communication system (100). A signaling message is inserted into the user frame. The user frame is transmitted from the base station (104) and received at a mobile unit (102). The mobile unit (102) transmits an erasure indicator bit to indicate that the user frame was received by the mobile unit (102). The base station (104) receives the erasure indicator bit. It is then determined, based at least in part upon the erasure indicator bit, whether the signaling message was accurately transmitted by the base station (104) and received by the mobile unit (102). If the signaling message was not accurately transmitted and received, the base station (104) will retrieve the stored signaling message and retransmit the signaling message to the mobile unit (102).

Patent Agency Ranking