公开(公告)号：AT425610T

公开(公告)日：2009-03-15

申请号：AT01971876

申请日：2001-08-06

Applicant: MOTOROLA INC

Inventor： GIBBS JONATHAN ,  AFTELAK STEPHEN ,  BADEN CHARLOTTE

IPC: H04L12/28 ,  H04L12/54

公开(公告)号：GB2391440A

公开(公告)日：2004-02-04

申请号：GB0217729

申请日：2002-07-31

Applicant: MOTOROLA INC

Inventor： GIBBS JONATHAN ALASTAIR ,  AFTELAK STEPHEN

IPC: G10L19/005 ,  H04L1/00 ,  G10L19/00

Abstract: A speech communication unit comprises a speech encoder capable of representing an input speech signal, e.g. from microphone 202. The speech encoder is coupled to a main transmission path (281), for transmitting a number of speech frames to a speech decoder, and a virtual transmission path (282) for transmitting one or more references for a number of speech frames transmitted in the transmission path (281). The one or more references identify an alternative speech frame within the number of speech frames transmitted on the transmission path (281) to be used as a replacement frame when a frame is received including an error. A suitable alternative speech frame is one that exhibits a similar characteristic to the frame to be replaced, based on evaluation of a minimum weighted error. The speech communication unit provides the advantage that a more accurate replacement frame mechanism is provided, thereby reducing the risk of undesirable artefacts being audible in recovered speech frames.

公开(公告)号：DE60202206D1

公开(公告)日：2005-01-13

申请号：DE60202206

申请日：2002-02-25

Applicant: MOTOROLA INC

Inventor： O'NEILL RORIE ,  AFTELAK STEPHEN ,  BENSON MAYA

IPC: H04B7/26

Abstract: A method of allocating timeslots between uplink and downlink communication in a cellular communication system (10) is described. The method comprises: for consecutive time division multiple access, TDMA, frames comprising the timeslots, allocating a first selection of the timeslots to uplink communication in each of a plurality of cells (101,201) and allocating a second selection of the timeslots to downlink communiction in each of the plurality of cells (101,201); and, when the number of timeslots of each frame to be allocated to uplink communication rather than downlink is different for different cells (101,201), varying the allocation of at least some of the uplink and downlink timeslots in a random or pseudo-random sequence in each cell (101, 201).

公开(公告)号：AT284585T

公开(公告)日：2004-12-15

申请号：AT02719958

申请日：2002-02-25

Applicant: MOTOROLA INC

Inventor： O'NEILL RORIE ,  AFTELAK STEPHEN ,  BENSON MAYA

IPC: H04B7/26

Abstract: A method of allocating timeslots between uplink and downlink communication in a cellular communication system (10) is described. The method comprises: for consecutive time division multiple access, TDMA, frames comprising the timeslots, allocating a first selection of the timeslots to uplink communication in each of a plurality of cells (101,201) and allocating a second selection of the timeslots to downlink communiction in each of the plurality of cells (101,201); and, when the number of timeslots of each frame to be allocated to uplink communication rather than downlink is different for different cells (101,201), varying the allocation of at least some of the uplink and downlink timeslots in a random or pseudo-random sequence in each cell (101, 201).

公开(公告)号：AU2003240644A1

公开(公告)日：2004-02-25

申请号：AU2003240644

申请日：2003-05-12

Applicant: MOTOROLA INC

Inventor： GIBBS JONATHAN ALASTAIR ,  AFTELAK STEPHEN

IPC: G10L19/005 ,  H04L1/00 ,  G10L19/06

Abstract: A speech communication unit comprises a speech encoder capable of representing an input speech signal, e.g. from microphone 202. The speech encoder is coupled to a main transmission path (281), for transmitting a number of speech frames to a speech decoder, and a virtual transmission path (282) for transmitting one or more references for a number of speech frames transmitted in the transmission path (281). The one or more references identify an alternative speech frame within the number of speech frames transmitted on the transmission path (281) to be used as a replacement frame when a frame is received including an error. A suitable alternative speech frame is one that exhibits a similar characteristic to the frame to be replaced, based on evaluation of a minimum weighted error. The speech communication unit provides the advantage that a more accurate replacement frame mechanism is provided, thereby reducing the risk of undesirable artefacts being audible in recovered speech frames.

公开(公告)号：DE60202206T2

公开(公告)日：2005-04-14

申请号：DE60202206

申请日：2002-02-25

Applicant: MOTOROLA INC

Inventor： O'NEILL RORIE ,  AFTELAK STEPHEN ,  BENSON MAYA

IPC: H04B7/26

Abstract: A method of allocating timeslots between uplink and downlink communication in a cellular communication system (10) is described. The method comprises: for consecutive time division multiple access, TDMA, frames comprising the timeslots, allocating a first selection of the timeslots to uplink communication in each of a plurality of cells (101,201) and allocating a second selection of the timeslots to downlink communiction in each of the plurality of cells (101,201); and, when the number of timeslots of each frame to be allocated to uplink communication rather than downlink is different for different cells (101,201), varying the allocation of at least some of the uplink and downlink timeslots in a random or pseudo-random sequence in each cell (101, 201).

公开(公告)号：GB2380914B

公开(公告)日：2005-02-23

申请号：GB0124677

申请日：2001-10-13

Applicant: MOTOROLA INC

Inventor： BARRETT STEPHEN JOHN ,  LOPES LUIS ,  AFTELAK STEPHEN

IPC: H03M13/27 ,  H04B7/26

公开(公告)号：GB2391440B

公开(公告)日：2005-02-16

申请号：GB0217729

申请日：2002-07-31

Applicant: MOTOROLA INC

Inventor： GIBBS JONATHAN ALASTAIR ,  AFTELAK STEPHEN

IPC: G10L19/005 ,  H04L1/00 ,  G10L19/00

Abstract: A speech communication unit comprises a speech encoder capable of representing an input speech signal, e.g. from microphone 202. The speech encoder is coupled to a main transmission path (281), for transmitting a number of speech frames to a speech decoder, and a virtual transmission path (282) for transmitting one or more references for a number of speech frames transmitted in the transmission path (281). The one or more references identify an alternative speech frame within the number of speech frames transmitted on the transmission path (281) to be used as a replacement frame when a frame is received including an error. A suitable alternative speech frame is one that exhibits a similar characteristic to the frame to be replaced, based on evaluation of a minimum weighted error. The speech communication unit provides the advantage that a more accurate replacement frame mechanism is provided, thereby reducing the risk of undesirable artefacts being audible in recovered speech frames.

公开(公告)号：GB2380914A

公开(公告)日：2003-04-16

申请号：GB0124677

申请日：2001-10-13

Applicant: MOTOROLA INC

Inventor： BARRETT STEPHEN JOHN ,  LOPES LUIS ,  AFTELAK STEPHEN

IPC: H03M13/27 ,  H04B7/26

Abstract: A cellular network architecture (12, 13) supports multiple interleaving intervals on the air interface (21) whilst permitting efficient backhaul (14) dimensioning by performing channel coding (15) and bit interleaving (17) operations in a radio network controller, RNC (12). Further improvements are provided by the inclusion of a compressor (25) in the RNC (12) which reduces the number of data bits to be transported over the backhaul link (14). De-compression apparatus (27) located in a node B (13) re-constitutes the original data stream for onward transmission over an air interface (21) to a user equipment (20).

公开(公告)号：WO02098021A3

公开(公告)日：2003-03-20

申请号：PCT/EP0202142

申请日：2002-02-25

Applicant: MOTOROLA INC ,  O'NEILL RORIE ,  AFTELAK STEPHEN ,  BENSON MAYA

Inventor： O'NEILL RORIE ,  AFTELAK STEPHEN ,  BENSON MAYA

IPC: H04B7/26

CPC classification number: H04B7/2656

Abstract: A method of allocating timeslots between uplink and downlink communication in a cellular communication system (10) is described. The method comprises: for consecutive time division multiplex access, TDMA, frames comprising the timeslots, allocating a first selection of the timeslots to uplink communication in each of a plurality of cells (101,201) and allocating a second selection of the timeslots to downlink communiction in each of the plurality of cells (101,201); and, when the number of timeslots of each frame to be allocated to uplink communication rather than downlink is different for different cells (101,201), varying the allocation of at least some of the uplink and downlink timeslots in a random or pseudo-random sequence in each cell (101, 201).

Abstract translation: 描述在蜂窝通信系统（10）中在上行链路和下行链路通信之间分配时隙的方法。 该方法包括：对于连续的时分复用接入TDMA，包括时隙的帧，在多个小区（101,201）中的每一个小区（101,201）中分配时隙的第一选择到上行链路通信，并将时隙的第二选择分配给下行链路通信 所述多个单元（101,201）中的每一个; 并且当对于不同的小区（101,201）分配给上行链路通信而不是下行链路的每个帧的时隙的数量不同时，以随机或伪随机序列中的至少一些上行链路和下行链路时隙的分配改变 每个单元（101,201）。