METHOD FOR OBTAINING SYSTEM ACCESS TO WIRELESS COMMUNICATIONS SYSTEM

    公开(公告)号:JP2000152343A

    公开(公告)日:2000-05-30

    申请号:JP31972399

    申请日:1999-11-10

    Abstract: PROBLEM TO BE SOLVED: To provide a method for reducing the collision amount of access messages on a random access channel(RACH) in an opposite direction by a plurality of mobile stations which are about to obtain simultaneous accesses in the wireless communications system. SOLUTION: A probe message, shorter than an access message in place of the access message, is transmitted through a RACH. The period of use for the RACH by the transmission of the probe message is shorter than that by the transmission of the access message, and the chances for collision with other probe messages can be reduced. Then the access message is sent through a traffic channel or a control channel designated by a base station receiving the probe signal. Alternative method offer data burst being transmitted trough a designated traffic channel or control channel.

    PRELIMINARY MESSAGING PROTOCOL FOR STARTING POSITIONING

    公开(公告)号:JP2000197097A

    公开(公告)日:2000-07-14

    申请号:JP35553999

    申请日:1999-12-15

    Abstract: PROBLEM TO BE SOLVED: To provide a messaging protocol to start a positioning function, independently of the current call processing state of a mobile object. SOLUTION: When a mobile object is in a mobile object idle state, in a system access state or in a traffic channel state, a serving base station or the mobile object transmits a positioning request. A messaging protocol describes how a positioning function is started, when the mobile object is resident in any of various call processing states and used to identify a messaging required between a serving base station and the mobile object. Then the mobile object transmits a positioning trial message to the base station. The positioning trial message is formatted according to positioning parameter data and includes at least one positioning probe with a mobile object identification number or a probe number. The base station discriminates the position of the mobile object on the basis of the positioning trial.

    3.
    发明专利
    未知

    公开(公告)号:ID25748A

    公开(公告)日:2000-11-02

    申请号:ID991040

    申请日:1999-11-11

    Abstract: Disclosed is a method for significantly reducing the amount of collisions of access messages on reverse link Random Access Channels (RACH) by multiple mobile-stations attempting to gain system access concurrently, thereby greatly improving access performance in wireless communications system using existing multiple access schemes. The improvement is achieved by transmitting a probe message instead of an access message over the RACH, wherein the probe message is shorter in length than the access message. Transmission of the probe messages utilizes less of the RACH than the longer access messages, thereby reducing the chance of collisions with other probe messages. The access message is subsequently sent on a traffic channel or a control channel designated by a base station receiving the probe message. Alternately, a data burst is transmitted over the designated traffic channel or control channel.

    Quick assignment method for multiple access schemes

    公开(公告)号:AU5830599A

    公开(公告)日:2000-05-18

    申请号:AU5830599

    申请日:1999-11-05

    Abstract: Disclosed is a method for significantly reducing the amount of collisions of access messages on reverse link Random Access Channels (RACH) by multiple mobile-stations attempting to gain system access concurrently, thereby greatly improving access performance in wireless communications system using existing multiple access schemes. The improvement is achieved by transmitting a probe message instead of an access message over the RACH, wherein the probe message is shorter in length than the access message. Transmission of the probe messages utilizes less of the RACH than the longer access messages, thereby reducing the chance of collisions with other probe messages. The access message is subsequently sent on a traffic channel or a control channel designated by a base station receiving the probe message. Alternately, a data burst is transmitted over the designated traffic channel or control channel.

    QUICK ASSIGNMENT METHOD FOR MULTIPLE ACCESS SCHEMES

    公开(公告)号:CA2282979A1

    公开(公告)日:2000-05-12

    申请号:CA2282979

    申请日:1999-09-22

    Abstract: Disclosed is a method for significantly reducing the amount of collisions of access messages on reverse link Random Access Channels (RACH) by multiple mobilestations attempting to gain system access concurrently, thereby greatly improving access performance in wireless communications system using existing multiple access schemes. The improvement is achieved by transmitting a probe message instead of an access message over the RACH, wherein the probe message is shorter in length than the access message. Transmission of the probe messages utilizes less of the RACH than the longer access messages, thereby reducing the chance of collisions with other probe messages. The access message is subsequently sent on a traffic channel or a control channel designated by a base station receiving the probe message. Alternately, a data burst is transmitted over the designated traffic channel or control channel.

    6.
    发明专利
    未知

    公开(公告)号:BR9906121A

    公开(公告)日:2000-08-15

    申请号:BR9906121

    申请日:1999-11-03

    Abstract: Disclosed is a method for significantly reducing the amount of collisions of access messages on reverse link Random Access Channels (RACH) by multiple mobile-stations attempting to gain system access concurrently, thereby greatly improving access performance in wireless communications system using existing multiple access schemes. The improvement is achieved by transmitting a probe message instead of an access message over the RACH, wherein the probe message is shorter in length than the access message. Transmission of the probe messages utilizes less of the RACH than the longer access messages, thereby reducing the chance of collisions with other probe messages. The access message is subsequently sent on a traffic channel or a control channel designated by a base station receiving the probe message. Alternately, a data burst is transmitted over the designated traffic channel or control channel.

    Precursive messaging protocol for initiating position location

    公开(公告)号:AU6439299A

    公开(公告)日:2000-06-22

    申请号:AU6439299

    申请日:1999-12-08

    Abstract: The messaging protocol modifies current CDMA systems to initiate a position location function while providing minimal interference to the system and preserving battery life. There are circumstances when a mobile position location may need to be performed when the mobile 40 is in a mobile idle state, a system access state or a traffic channel state. These location requests can come from a serving base station or from the mobile. In addition, for certain location services, the position of the mobile may have to be located periodically. The messaging protocol describes how the position location function is to be initiated when the mobile is in various call processing states and identifies the messaging needed between the serving base station and the mobile. The serving base station transmits a location order message that includes location parameter data to the mobile. The mobile then transmits a location attempt message to the base station. The location attempt message is formatted according to the location parameter data and includes at least one location probe having the mobile identification number or a probe number. The CDMA system then determines the position of the mobile based on the location attempt.

    PRECURSIVE MESSAGING PROTOCOL FOR INITIATING POSITION LOCATION

    公开(公告)号:CA2289048A1

    公开(公告)日:2000-06-15

    申请号:CA2289048

    申请日:1999-11-08

    Abstract: The messaging protocol modifies current CDMA systems to initiate a position location function while providing minimal interference to the system and preserving battery life. There are circumstances when a mobile position location may need to be performed when the mobile 40 is in a mobile idle state, a system access state or a traffic channel state. These location requests can come from a serving base station or from the mobile. In addition, for certain location services, the position of the mobile may have to be located periodically. The messaging protocol describes how the position location function is to be initiated when the mobile is in various call processing states and identifies the messaging needed between the serving base station and the mobile. The serving base station transmits a location order message that includes location parameter data to the mobile. The mobile then transmits a location attempt message to the base station. The location attempt message is formatted according to the location parameter data and includes at least one location probe having the mobile identification number or a probe number. The CDMA system then determines the position of the mobile based on the location attempt.

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