公开(公告)号：DE60208681D1

公开(公告)日：2006-04-06

申请号：DE60208681

申请日：2002-07-02

Applicant: QUALCOMM INC

Inventor： CHEN TAO ,  LEUNG K ,  TIEDEMANN G ,  SINNARAJAH REGULAN

IPC: H04L1/16 ,  H04L1/00 ,  H04L1/18

Abstract: An apparatus for providing frame re-transmission in a broadcast communication system. Frame re-transmission is accomplished only when a predetermined number of negative acknowledgement messages are received with respect to one or more data frames. The predetermined number may vary in accordance with various operating parameters, such as the latency of the transmission and/or the number of wireless communication devices currently receiving a broadcast transmission.

公开(公告)号：DE69832805D1

公开(公告)日：2006-01-19

申请号：DE69832805

申请日：1998-09-16

Applicant: QUALCOMM INC

Inventor： REZAIIFAR RAMIN ,  JOU YU-CHEUN ,  TIEDEMANN G

IPC: E06C1/32 ,  E06C7/08 ,  E06C7/46 ,  E06C7/48 ,  H04B7/185 ,  H04B7/26 ,  H04J1/00 ,  H04W36/18 ,  H04W48/12 ,  H04W52/02 ,  H04W72/04 ,  H04W72/12 ,  H04W76/04

Abstract: In a channel structure for use in communication systems, two sets of physical channels, one for the forward link (50) and another for the reverse link (52), are utilized to facilitate communication of a variety of logical channels. The physical channels comprise data and control channels. In the exemplary embodiment, the data channels comprise fundamental channels which are used to transmit voice traffic, data traffic, high speed data, and other overhead information and supplemental channels which are used to transmit high speed data. The fundamental channels can be released when the remote stations are idle to more fully utilize the available capacity. The control channels are used to transmit paging and control messages and scheduling information.

公开(公告)号：DE69733254T2

公开(公告)日：2006-01-19

申请号：DE69733254

申请日：1997-06-06

Applicant: QUALCOMM INC

Inventor： TIEDEMANN G

IPC: H04B7/26 ,  H04W36/18 ,  H04W48/10 ,  H04W48/20

Abstract: A method and apparatus which permits handoffs while the mobile station is in the system access state. This is achieved by providing for channel assignment messages to be sent over the paging channel of a plurality of base stations, which increases the probability of one of the messages getting through. In addition, this assures the mobile station will be able handoff to a different base station and have a traffic channel allocated to it on the new base station without delay. In addition, a method and apparatus which permits the mobile station to be directly assigned into a soft handoff state upon traffic channel assignment.

公开(公告)号：DE69734652D1

公开(公告)日：2005-12-22

申请号：DE69734652

申请日：1997-05-28

Applicant: QUALCOMM INC

Inventor： TIEDEMANN G ,  JOU YU-CHEUN ,  ODENWALDER P

IPC: H04B7/26 ,  H04L69/14 ,  H04W28/18 ,  H04Q7/38

Abstract: The present invention is a method and apparatus for transmitting a high rate data packet in a CDMA communication system. The transmission system transmits a first channel assignment message indicating the at least one additional channel that will be used to support the high rate data packet. The first channel assignment message is sent in advance of the onset of high rate data communications. In addition the present invention provides within the first frame of high rate data a duplicate channel assignment message. A remote receiver uses the channel assignment messages to initialize its demodulation elements to receive the additional information carried on the at least one additional channel.

公开(公告)号：DE69633672T2

公开(公告)日：2005-10-20

申请号：DE69633672

申请日：1996-08-07

Applicant: QUALCOMM INC

Inventor： WEAVER A ,  BAYLEY GWAIN ,  TIEDEMANN G ,  GILHOUSEN S

IPC: H04W36/14 ,  H04Q7/38

公开(公告)号：DE69733890D1

公开(公告)日：2005-09-08

申请号：DE69733890

申请日：1997-06-11

Applicant: QUALCOMM INC

Inventor： GROB S ,  TIEDEMANN G ,  KUDRIMOTI ABHIJIT

IPC: H04L9/12 ,  H04B7/26 ,  H04J3/06 ,  H04L7/00 ,  H04L9/18 ,  H04Q7/32 ,  H04Q7/38 ,  H04L1/00 ,  H04Q7/22 ,  H04K1/00

Abstract: Synchronization and bit count integrity of a synchronous data stream is preserved end to end even as it is transmitted via a medium which does not preserve the synchronous nature of the synchronous data stream. A terminal equipment unit produces a constant rate bit stream which is provided to a communications unit. The communications unit produces first, second, and third data frames comprising, respectively, first, second, and third set of bits from the constant rate bit stream and first, second, and third length fields. The first, second, and third data frames are transmitted to a base unit which places the first set of bits from the first frame into a queue. A set of fill bits equal to the maximum number of bits contained in any frame is then placed into the queue. The base unit then determines the number of bits in the second set of bits of the third data frame, based on the first length field value and the third length field value. The base unit overwrites excess fill bits in the queue with the third set of bits. The number of excess fill bits is equal to the difference between the maximum possible number of bits which may be contained in any frame and the number of bits in the second set of bits.

公开(公告)号：DE60019137D1

公开(公告)日：2005-05-04

申请号：DE60019137

申请日：2000-08-11

Applicant: QUALCOMM INC

Inventor： SARKAR SANDIP ,  TIEDEMANN G ,  ODENWALDER P

IPC: H04B7/005 ,  H04B7/26 ,  H04W24/00 ,  H04W36/00 ,  H04W36/14 ,  H04W52/08 ,  H04W52/12 ,  H04W52/22 ,  H04W52/24 ,  H04W52/28 ,  H04W52/40 ,  H04W52/48 ,  H04W72/06 ,  H04Q7/38

Abstract: The structure of a time-multiplexed physical channel is used to time inter-frequency or inter-system search excursions. A mobile station that receives an instruction to perform a search excursion prepares for the search excursion by detecting the first radio frame of a message frame. Transport format combination indicator bits are extracted from the first radio frame and stored. After the search excursion is performed, the mobile station recalls the stored indicator bits and uses the indicator bits to decode other radio frames of the message frame.

公开(公告)号：DE69633672D1

公开(公告)日：2004-11-25

申请号：DE69633672

申请日：1996-08-07

Applicant: QUALCOMM INC

Inventor： WEAVER A ,  BAYLEY GWAIN ,  TIEDEMANN G ,  GILHOUSEN S

IPC: H04W36/14 ,  H04Q7/38

公开(公告)号：DE69533224D1

公开(公告)日：2004-08-05

申请号：DE69533224

申请日：1995-07-05

Applicant: QUALCOMM INC

Inventor： TIEDEMANN G

IPC: H04B20060101 ,  H04B7/005 ,  H04B7/26

Abstract: The power control process of the present invention enables a base station communicating over a forward packet channel to a mobile radio to control the power of the mobile radio transmitting over a reverse packet channel to the base station. The base station maintains a maximum energy per bit to total interference spectral density ratio threshold for the reverse channel as well as a desired threshold that results in a low frame error rate. By comparing each radiotelephone's estimated energy per bit to total interference spectral density ratio to the desired and maximum thresholds, power control commands to increase or decrease the radiotelephone's transmit power are generated depending on the outcome of the comparison.

公开(公告)号：DE69934706T2

公开(公告)日：2007-10-18

申请号：DE69934706

申请日：1999-10-12

Applicant: QUALCOMM INC

Inventor： BUTLER K ,  ZHANG HAITAO ,  TIEDEMANN G ,  ZOU QIUZHEN ,  SIH C ,  AGRAWAL AVNEESH

IPC: H04W24/02 ,  H04B1/7075 ,  H04B1/7077 ,  H04B1/7115 ,  H04W52/02

Abstract: A novel and improved method for performing paging is described. In one embodiment of the invention a searcher is used to detect spread spectrum signals. Samples received RF signals are stored in a sample buffer. During standby mode, the samples are gathered during paging slots assigned to the mobile. A set of searches are performed on the samples, and if pilot signals are detected additional demodulation is performed to detect paging messages. The resulting set of demodulation data may be combined to increase detection. After a page message has been detected, additional demodulation resources may be activated to processes more complete page messages, or other information channels. In one embodiment of the invention, the searcher includes a demodulator to perform quick page detection without the use of finger elements to reduce idle mode power consumption.