TIME DIVISION MULTIPLE ACCESS COMMUNICATION SYSTEM

    公开(公告)号:JP2000004208A

    公开(公告)日:2000-01-07

    申请号:JP5634799

    申请日:1999-03-04

    Abstract: PROBLEM TO BE SOLVED: To obtain an efficient power controllable communication system by making each user terminal extract data from its allocated time slot in those frames indicating that a slot includes data in accordance with setup information and a user packet flag. SOLUTION: A dedicated downlink channel time frame comprises, for instance, sixteen time slots. Downlink data is transmitted through a data channel in a repetition time frame and downlink setup information is transmitted through a control channel because a user terminal shows from which time slot data should be extracted. Each frame of a data channel includes a user packet flag that indicates whether or not each time slot in a frame includes data. Each user terminal extracts data from its allocated time slot in those frames in accordance with setup information and a user packet flag.

    TRANSMITTING METHOD OF DATA IN CDMA SYSTEM

    公开(公告)号:JP2000115861A

    公开(公告)日:2000-04-21

    申请号:JP28397399

    申请日:1999-10-05

    Abstract: PROBLEM TO BE SOLVED: To minimize addition of an overhead and to minimize the need to change the structure of a physical layer by multiplexing plural packet data users to one downlink shared channel. SOLUTION: A multiplexer 26 is provided in an MAC sublayer 4a and inputs respective transport blocks from respective user data streams on signal lines 12a, 12b, and 12c. The multiplexer 26 multiplexes the transport blocks which are received from the all user data streams in a corresponding time frame into one signal on a signal line 28. Thus, a single piece of signal data, including the transport blocks for all the user in a certain time frame, is inputted to an encoding block 14d, a rate matching block 16d and an interleaving block 18d, and these process the multiplexed transport blocks.

    PACKET EXCHANGE COMMUNICATION SYSTEM AND METHOD FOR PACKET EXCHANGE COMMUNICATION

    公开(公告)号:JP2000091987A

    公开(公告)日:2000-03-31

    申请号:JP21262899

    申请日:1999-07-27

    Abstract: PROBLEM TO BE SOLVED: To provide high speed closed loop power control in W-CDMA communication. SOLUTION: A packet switched communication system where a station uses a down-link communication channel in communication with at least one user is provided and the down-link communication channel is divided into plural frames. Each frame has plural data packets each data packet is sent to a prescribed user and has transmission power control information of the user. At least one data packet in each frame has transmission power control information of at least another user in this communication system. This system can be provided with a null user packet. This differs from the prescribed packet provided with transmission power control information of at least one user in this communication system.

    4.
    发明专利
    未知

    公开(公告)号:BR9904390A

    公开(公告)日:2000-09-05

    申请号:BR9904390

    申请日:1999-10-01

    Abstract: There is disclosed a method of transmitting data in a code division multiple access system, comprising the steps of: outputting data blocks associated with a plurality of respective users in a plurality of corresponding data streams, the data blocks of each data stream being arranged in successive time frames of a constant, predetermined length; and multiplexing the data blocks on all the data streams for each given time frame. A communications system including circuitry for utilising such a method is also disclosed.

    COMMUNICATIONS SYSTEMS
    6.
    发明专利

    公开(公告)号:CA2273529A1

    公开(公告)日:2000-01-28

    申请号:CA2273529

    申请日:1999-06-03

    Abstract: The invention described is a packet switched communications system in which a station communicates with at least one user over downlink communication channel, the downlink communication channel being divided into a plurality of frames and each flame including a plurality of data packets. Each data packet is directed to a predetermined user and includes transmission power control information for said user. An extended transmission power control information field is provided in at least one data packet in every frame, which includes transmission power control information for at least one other user of the communication system.

    7.
    发明专利
    未知

    公开(公告)号:DE60035481T2

    公开(公告)日:2008-03-20

    申请号:DE60035481

    申请日:2000-01-19

    Abstract: According to the present invention there is further provided radio resource allocation apparatus for allocating radio resources for transmission of signals along a plurality of channels to and from a node, the node comprising a transmitter/receiver for transmitting and receiving signals to and from the node and a channel selection device for selecting the channels along which different signal transmissions are to be routed, and a channel allocation device for controlling the allocation of channels by the channel selection device, the channel selection device comprising first means responsive to incoming signal transmissions passing through the node to produce a data rate signal, a bit energy to noise power ratio signal and a classification signal, second means responsive to the output of the first means to generate a maximum load parameter signal and third means responsive to an output from the channel selection device providing channel status indications and to the output of the first and second means to process the received signals in accordance with a predetermined algorithm and to feed the channel selection device with channel selection signals accordingly, wherein the algorithm of the third means includes resolving the capacity equation alpha current - alpha new ≤ alpha max = 100% - eta , where alpha current is the current load of node as given by the sum of the resource consumption of all services that are served by the node, alpha new is the additional load capacity required of the node, alpha max is the maximum load which the node is capable of and eta is a reserve safety factor, whereby if the capacity boundary of the equation is exceeded, the generation of said channel selection signals is inhibited and a resource consumption negotiation takes place following which the capacity equation is again resolved, when the boundaries imposed by the capacity equation are not exceeded, the channel selection signals are transmitted to the channel selection device.

    9.
    发明专利
    未知

    公开(公告)号:DE69832878T2

    公开(公告)日:2006-08-03

    申请号:DE69832878

    申请日:1998-10-05

    Abstract: There is disclosed a method of transmitting data in a code division multiple access system, comprising the steps of: outputting data blocks associated with a plurality of respective users in a plurality of corresponding data streams, the data blocks of each data stream being arranged in successive time frames of a constant, predetermined length; and multiplexing the data blocks on all the data streams for each given time frame. A communications system including circuitry for utilising such a method is also disclosed.

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