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公开(公告)号：DE112006002491T5
公开(公告)日：2008-07-10
申请号：DE112006002491
申请日：2006-06-30
Applicant: MOTOROLA INC
Inventor： WANG FAN , GHOSH AMITAVA , RATASUK RAPEEPAT , WHINNETT NICK W , XIAO WEIMIN
IPC: H04L12/26
Abstract: A method to provide a nominal best effort data rate based on a Quality of Service (QoS) requirement of a user data connection, the method comprising assigning ( 105 ) a service priority based on the QoS requirement, and assigning ( 110 ) the nominal best effort data rate for the service priority using a predetermined function. Further, it comprises of a method to determine a scheduling priority value for a user data connection by providing a relative fairness. Furthermore, the method comprises a method to satisfy a delay requirement for a delay sensitive data connection through a scheduling.
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公开(公告)号：GB2430844B
公开(公告)日：2008-01-02
申请号：GB0520099
申请日：2005-10-03
Applicant: MOTOROLA INC
Inventor： WHINNETT NICK W
Abstract: In a Discrete Fourier Transform-Spread Orthogonal Frequency Division Multiplex (DFT-SOFDM) transmitter for Evolved-UMTS Terrestrial Radio Access (E-UTRA) signals, each of two cascaded phase rotators 203 and 205 multiply an incoming complex Binary Phase Shift Keyed (BPSK) symbol by some complex value in accordance with different phase rotation constraints in order to prevent transmitters aligning in the In phase/Quadrature (IQ) domain. For example, 203 could output a pi/2 BPSK modulated signal by multiplying by a j, 1, j, 1, ... sequence, which 205 then multiplied by a j, j, j, 1, 1, 1, -1, -1, -1 ... scrambling code, reducing alignment interference and the required amplifier back-off. The symbols are then converted to groups (101) and directly coupled to an M-point DFT (105), without being mapped to constellation as in prior art (103), before entering an N>M-point inverse DFT (107) to retrieve a time domain signal.
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公开(公告)号：GB2430844A
公开(公告)日：2007-04-04
申请号：GB0520099
申请日：2005-10-03
Applicant: MOTOROLA INC
Inventor： WHINNETT NICK W
Abstract: In a Discrete Fourier Transform-Spread Orthogonal Frequency Division Multiplex (DFT-SOFDM) transmitter for Evolved-UMTS Terrestrial Radio Access (E-UTRA) signals, each of two cascaded phase rotators 203 and 205 multiply an incoming complex Binary Phase Shift Keyed (BPSK) symbol by some complex value in accordance with different phase rotation constraints in order to prevent transmitters aligning in the In phase/Quadrature (IQ) domain. For example, 203 could output a pi/2 BPSK modulated signal by multiplying by a j, 1, j, 1, ... sequence, which 205 then multiplied by a j, j, j, 1, 1, 1, -1, -1, -1 ... scrambling code, reducing alignment interference and the required amplifier back-off. The symbols are then converted to groups (101) and directly coupled to an M-point DFT (105), without being mapped to constellation as in prior art (103), before entering an N>M-point inverse DFT (107) to retrieve a time domain signal.
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Patent Agency Ranking
公开(公告)号：CA2535424A1
公开(公告)日：2005-03-10
申请号：CA2535424
申请日：2004-08-23
Applicant: MOTOROLA INC
Inventor： LOVE ROBERT T , GHOSH AMITAVA , WHINNETT NICK W
Abstract: During a random access communication opportunity (12), user equipment (20) utilizes either or both of an adaptive modulation and coding-based communication protocol (26) and an HARQ-based communication protocol (27) to achieve improved performance. This can avoid the need to establish dedicated channels (13) to support the required communications. In one embodiment, a plurality of adaptive modulation and coding-based communication protocols ar e provided with a given protocol being selected as a function of one or more governing criteria. For example, the protocol can be selected as a function of a quality condition of the communication path, as a function of a memory buffer, and so forth.
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公开(公告)号：GB2465926A
公开(公告)日：2010-06-09
申请号：GB201004967
申请日：2006-06-30
Applicant: MOTOROLA INC
Inventor： WHINNETT NICK W , XIAO WEIMIN , WANG FAN , GHOSH AMITAVA , RATASUK RAPEEPAT
Abstract: A method to determine a scheduling priority value for a user data connection, the method comprising: determining an instantaneous data rate achievable for the user data connection based on a channel quality; determining a normalized average throughput for the user data connection, the normalized average throughput being a first ratio of an average throughput of the user data connection, with respect to a nominal best effort data rate assigned to the user data connection; calculating the scheduling priority value being a second ratio of the instantaneous data rate controlled by a first mathematical index, with the normalized average throughput controlled by a second mathematical index, the first mathematical index and the second mathematical index being used to control a scheduling fairness.
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公开(公告)号：GB2444001A
公开(公告)日：2008-05-21
申请号：GB0804399
申请日：2006-06-30
Applicant: MOTOROLA INC
Inventor： WANG FAN , GHOSH AMITAVA , RATASUK RAPEEPAT , WHINNETT NICK W , XIAO WEIMIN
Abstract: A method to provide a nominal best effort data rate based on a Quality of Service (QoS) requirement of a user data connection, the method comprising assigning (105) a service priority based on the QoS requirement, and assigning (110) the nominal best effort data rate for the service priority using a predetermined function. Further, it comprises of a method to determine a scheduling priority value for a user data connection by providing a relative fairness. Furthermore, the method comprises a method to satisfy a delay requirement for a delay sensitive data connection through a scheduling.
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公开(公告)号：GB2432751B
公开(公告)日：2007-11-14
申请号：GB0524240
申请日：2005-11-28
Applicant: MOTOROLA INC
Inventor： WHINNETT NICK W , PADFIELD DAVID C
Abstract: A base station (103) operates a hybrid retransmission scheme for a communication to a first subscriber unit (101) over a communication channel of an air interface of a cellular communication system. The base station (103) comprises a retransmission parameter controller (209) which sets a transmission parameter, such as a transmit power or an error correcting scheme, for a transmission of the communication in response to an operating point for the retransmission scheme. A CQI processor (203) determines a channel quality indication for the communication channel and a variation processor (205) determines a variation measure of a variation of the channel quality indication. The variation measure can for example be a rate of change. An operating point controller (207) sets the operating point in response to the variation measure. The invention may allow improved setting of transmission parameters for initial transmissions thereby providing higher throughput, reduced resource consumption and reduced delay.
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公开(公告)号：GB2432751A
公开(公告)日：2007-05-30
申请号：GB0524240
申请日：2005-11-28
Applicant: MOTOROLA INC
Inventor： WHINNETT NICK W , PADFIELD DAVID C
Abstract: A base station (103) operates a hybrid retransmission scheme for a communication to a first subscriber unit (101) over a communication channel of an air interface of a cellular communication system. The base station (103) comprises a retransmission parameter controller (209) which sets a transmission parameter, such as a transmit power or an error correcting scheme, for a transmission of the communication in response to an operating point for the retransmission scheme. A CQI processor (203) determines a channel quality indication for the communication channel and a variation processor (205) determines a variation measure of a variation of the channel quality indication. The variation measure can for example be a rate of change. An operating point controller (207) sets the operating point in response to the variation measure. The invention may allow improved setting of transmission parameters for initial transmissions thereby providing higher throughput, reduced resource consumption and reduced delay.
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