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公开(公告)号:DE60130418D1
公开(公告)日:2007-10-25
申请号:DE60130418
申请日:2001-03-12
Applicant: MOTOROLA INC
Inventor: CUDAK MARK , GHOSH AMITAVA , CLASSON BRIAN K , LOVE ROBERT T , JALLOUL LOUAY , NIKIDES ROBERT S
IPC: G06F15/16 , H04J3/00 , H04J3/16 , H04L1/00 , H04L1/16 , H04L1/18 , H04L12/28 , H04L12/56 , H04W16/14 , H04W28/14 , H04W36/08 , H04W36/18 , H04W36/30 , H04W36/38 , H04W48/20 , H04W72/12
Abstract: A mobile station (402) selects (1802) a preferred cell site for transmitting a frame of data to be sent subsequently to the mobile station. A base station (602) of the preferred cell site schedules (1804) a transmission of the frame of data, wherein parameters for the transmission are determined by the base station from recently-measured channel and interference information. Thereafter, the base station sends (1806) the frame of data from the preferred cell site; and an active set of base stations associated with the mobile station at ones of a plurality of cell sites synchronize (1808) their data queues to reflect the transmission of the frame of data.
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公开(公告)号:CA2573876A1
公开(公告)日:2007-07-18
申请号:CA2573876
申请日:2007-01-12
Applicant: MOTOROLA INC
Inventor: SUN YAKUN , GHOSH AMITAVA , RATASUK RAPEEPAT , LOVE ROBERT T , XIAO WEIMIN
Abstract: To address the need for a resource allocation scheme that results in a bette r tradeoff between cell-edge performance and overall spectral efficiency, a communication system (100) is provided that allocates uplink transmit power to user equipment (UEs) (102, 104) based on a fractional power control scheme (300). In another embodiment, since the cell-edge users are also likely to be power limited, the communication system may implement a minimized uplink transmission bandwidth resource allocation scheme (404, 406, 408, 410, 412, 414) that may work with the fractional power control scheme to achieve a level of performance desired fo r uplink transmissions in 3GPP (Third Generation Partnership Project) and 3GPP2 Evolution communication systems.
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公开(公告)号:FI20060539A
公开(公告)日:2006-12-11
申请号:FI20060539
申请日:2006-06-01
Applicant: MOTOROLA INC
Inventor: REVEL AGNES M , BURBIDGE RICHARD C , FABIEN JEAN-AICARD , LOVE ROBERT T
IPC: H04B20060101 , H04W28/12 , H04W36/02 , H04W72/12
Abstract: A mobile wireless communication terminal and a method therein including a message generation entity communicably coupled to a transmitter of a wireless transceiver, the message generation entity generating a scheduling information message for transmission by the transmitter in response to a serving cell change notification message received by a receiver, wherein the scheduling information message is indicative of resources required to schedule a transmission by the mobile wireless communication terminal.
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公开(公告)号:BRPI0409975A
公开(公告)日:2006-05-09
申请号:BRPI0409975
申请日:2004-04-22
Applicant: MOTOROLA INC
Inventor: LOVE ROBERT T , GHOSH AMITAVA , KUCHIBHOTLA RAVI , STEWART KENNETH A , WHINNETT NICHOLAS
Abstract: A method for rate selection by a communication device for enhanced uplink during soft handoff in a wireless communication system includes a first step of receiving information from a scheduler. This information can include one or more of scheduling, a rate limit, a power margin limit, and a persistence. A next step includes determining a data rate for an enhanced uplink during soft handoff using the information. A next step includes transmitting to a serving base station on an enhanced uplink channel at the data rate determined from the determining step.
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95.
公开(公告)号:CA2365634C
公开(公告)日:2006-03-28
申请号:CA2365634
申请日:2001-01-05
Applicant: MOTOROLA INC
Inventor: JALLOUL LOUAY A , CUDAK MARK C , CLASSON BRIAN K , GHOSH AMITAVA , LOVE ROBERT T
Abstract: A mobile station (110) selects an initial data rate for communication betwee n base station (107) and mobile station (110). Mobile station (110) communicat es the selected initial data rate to base station (107) through uplink (112). Base station (107) determines a difference level of interference condition experienced by mobile station (107) between a time when the initial data rat e was selected by mobile station (110) and a time when base station (107) prepares to communicate to mobile station (110). Base station (107) selects a final data rate for transmission from base station (107) to mobile station (110) based on the determined difference level of interference condition. As such, the initial data rate may be modified to the final data rate while maximizing the down link capacity.
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公开(公告)号:FI20051093A
公开(公告)日:2006-01-03
申请号:FI20051093
申请日:2005-10-28
Applicant: MOTOROLA INC
Inventor: KUCHIBHOTLA RAVI , LOVE ROBERT T
Abstract: A method for using buffer occupancy in uplink scheduling for a communication device includes a first step of sending buffer occupancy information and a time stamp indicating a last transmission opportunity provided to the communication device to an active set base stations. A next step includes utilizing the buffer occupancy information and time stamp to adjust a scheduling fairness setting for the communication device. A next step includes receiving scheduling information from a scheduler in accordance with the scheduling fairness setting. A next step includes transmitting on an uplink channel in accordance with the scheduling information.
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公开(公告)号:FI20051049A0
公开(公告)日:2005-10-18
申请号:FI20051049
申请日:2005-10-18
Applicant: MOTOROLA INC
Inventor: KUCHIBHOTLA RAVI , LOVE ROBERT T
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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:CA2533829A1
公开(公告)日:2005-03-03
申请号:CA2533829
申请日:2004-06-28
Applicant: MOTOROLA INC
Inventor: RATASUK RAPEEPAT , WHINNETT NICHOLAS W , GHOSH AMITAVA , LOVE ROBERT T
IPC: H04B7/005
Abstract: The present invention relates to methods of operation of a communication device and to corresponding communication devices. In particular the inventi on relates to a first method of operation of a communication device, wherein so me pilot bits associated with data bits are transmitted with a power at least partly dependent on the data rate at which the data bits are transmitted. At the base station, power control is carried out only on pilot bits with constant power, whereas channel estimation is carried out on all pilot bits.
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100.
公开(公告)号:AU4963201A
公开(公告)日:2001-10-30
申请号:AU4963201
申请日:2001-03-30
Applicant: MOTOROLA INC
Inventor: LOVE ROBERT T , CLASSON BRIAN K , GHOSH AMITAVA , JALLOUL LOUAY A , CUDAK MARK C
Abstract: Separate forward dedicated and shared control channels are provided in a spread-spectrum communication. The forward dedicated control channel is used to communicate persistent control information and point to the shared control channel when further intermittent control information concerning transmission of data to a mobile station needs to be communicated. The use of a dedicated control channel for only necessary persistent control information, while only pointing to a shared control channel when it is needed, affords more efficient utilization of system resources.
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