Abstract: A wireless communication system and its test method capable of executing a test of the wireless communication apparatus from a remote place by using a terminal generally used in wireless communication systems are implemented with a low-cost configuration and a simple procedure. A terminal obtained by installing a test AP on a general terminal that is used in general wireless communication systems and that can execute APs via a communication network is placed in a coverage area of a wireless communication apparatus. A maintenance center for the wireless communication system activates the terminal. The terminal executes the test AP and conducts communication with the maintenance center by using control signals and test signals for testing wireless communication system. A test is executed by measuring an actual communication state of the wireless communication system.

Abstract: A radio communication terminal, being used in a radio communication systems in which the transmission rate varies depending on radio wave conditions and communication statuses of other users, comprises a reception module which receives packets transmitted by a base station in an idle state of the radio communication terminal, a signal processing module which estimates a transmission rate available in communication based on the packets received by the reception module, and a display module which displays information indicating the transmission rate estimated by the signal processing module.

Abstract: To improve efficiency of a radio section while reducing a no-communication period in the case of handoff in communication used DRC and DSC signals. A communication connection apparatus (BS) 200 provided in a communication system accumulates data transmitted from the communication control apparatus (BSC) 300. In a state in which a DSC signal from a communication terminal (AT) 100 designates an owed BS, when a DRC indication from the AT 100 is switched from another BS to the owned BS, the BS 200 transmits data received from the BSC 300 last to the AT 100 out of the data accumulated in the BS 200. Consequently, missing data is requested from the BS 200 at a handoff destination in accordance with a retransmission request function existing in the AT 100. Moreover, retransmission processing for data by a retransmission request message is performed in the BS 200.

Abstract: Terminals #1 to #3 which have already been connected and a terminal #4 which wants to make a new connection send packets to a base station in that order. The base station queues the packets from the terminals #1 to #3 at a non-priority queue and the packet from the terminal #4 at a priority queue. For example, a predetermined amount of packets from a new connection is queued at the priority queue. Packets in the priority queue are dequeued with priority. Therefore, the packet sent from the terminal #4 is first sent to a base-station controller, and then the packets sent from the terminals #1 to #3 are sent to the base-station controller. As a result, the base-station controller first receives the packet sent from the terminal #4, and the period of time required for the terminal #4 to establish a connection is reduced.

Abstract: A wireless communication system and its test method capable of executing a test of the wireless communication apparatus from a remote place by using a terminal generally used in wireless communication systems are implemented with a low-cost configuration and a simple procedure. A terminal obtained by installing a test AP on a general terminal that is used in general wireless communication systems and that can execute APs via a communication network is placed in a coverage area of a wireless communication apparatus. A maintenance center for the wireless communication system activates the terminal. The terminal executes the test AP and conducts communication with the maintenance center by using control signals and test signals for testing wireless communication system. A test is executed by measuring an actual communication state of the wireless communication system.

Abstract: A wireless communication system and its test method capable of executing a test of the wireless communication apparatus from a remote place by using a terminal generally used in wireless communication systems are implemented with a low-cost configuration and a simple procedure. A terminal obtained by installing a test AP on a general terminal that is used in general wireless communication systems and that can execute APs via a communication network is placed in a coverage area of a wireless communication apparatus. A maintenance center for the wireless communication system activates the terminal. The terminal executes the test AP and conducts communication with the maintenance center by using control signals and test signals for testing wireless communication system. A test is executed by measuring an actual communication state of the wireless communication system.

Abstract: A radio communication terminal, being used in a radio communication systems in which the transmission rate varies depending on radio wave conditions and communication statuses of other users, comprises a reception module which receives packets transmitted by a base station in an idle state of the radio communication terminal, a signal processing module which estimates a transmission rate available in communication based on the packets received by the reception module, and a display module which displays information indicating the transmission rate estimated by the signal processing module.

Abstract: A radio communication terminal, being used in a radio communication systems in which the transmission rate varies depending on radio wave conditions and communication statuses of other users, comprises a reception module which receives packets transmitted by a base station in an idle state of the radio communication terminal, a signal processing module which estimates a transmission rate available in communication based on the packets received by the reception module, and a display module which displays information indicating the transmission rate estimated by the signal processing module.

Abstract: To improve efficiency of a radio section while reducing a no-communication period in the case of Handoff in communication used DRC and DSC signals. A communication connection apparatus (BS) 200 provided in a communication system accumulates data transmitted from the communication control apparatus (BSC) 300. In a state in which a DSC signal from a communication terminal (AT) 100 designates the own BS, when a DRC indication from the AT 100 is switched from another BS to the own BS, the BS 200 transmits data received from the BSC 300 last to the AT 100 out of the data accumulated in the BS 200. Consequently, missing data is requested from the BS 200 at a Handoff destination in, accordance with a retransmission request function existing in the AT 100. Moreover, retransmission processing for data by a retransmission request message is performed in the BS 200.

Abstract: Terminals #1 to #3 which have already been connected and a terminal #4 which wants to make a new connection send packets to a base station in that order. The base station queues the packets from the terminals #1 to #3 at a non-priority queue and the packet from the terminal #4 at a priority queue. For example, a predetermined amount of packets from a new connection is queued at the priority queue. Packets in the priority queue are dequeued with priority. Therefore, the packet sent from the terminal #4 is first sent to a base-station controller, and then the packets sent from the terminals #1 to #3 are sent to the base-station controller. As a result, the base-station controller first receives the packet sent from the terminal #4, and the period of time required for the terminal #4 to establish a connection is reduced.

Abstract: A wireless communication apparatus for communicating with a base station is provided with the function of specifying the type of an application from header information of an IP packet issued by the application, searching for a set of radio parameters for assuring a Quality of Service (QoS) required by the application from a conversion table having been prepared beforehand, and automatically setting up a new session based on the set of radio parameters.

Abstract: In data communication using radio communication, an inactivity timer value is changed according to various states, so that an unused time of a communication channel in a non-communication time is decreased, and channel use efficiency is raised. A unit for judging an application of packet data to be transmitted and received by a radio base station 408/a radio base station controller 405 is provided, or an inactivity timer value is set through a port number in TCP/UDP header and a traffic pattern and according to a communication content, and the set inactivity timer value is used to control a change from a connected state to a dormant state.

Abstract: In a mobile communication system in which a plurality of base stations are connected to a communication network via a packet transfer node and a transmission rate of a forward link radio channel between a base station and a mobile station dynamically changes, each of the base stations designates a packet transmission rate in accordance with the status of a radio channel of each of mobile stations under control for the packet transmission node, and the packet control node transfers packets destined for each of mobile stations to the base station at the designated transfer rate.

Abstract: A wireless communication system and its test method capable of executing a test of the wireless communication apparatus from a remote place by using a terminal generally used in wireless communication systems are implemented with a low-cost configuration and a simple procedure. A terminal obtained by installing a test AP on a general terminal that is used in general wireless communication systems and that can execute APs via a communication network is placed in a coverage area of a wireless communication apparatus. A maintenance center for the wireless communication system activates the terminal. The terminal executes the test AP and conducts communication with the maintenance center by using control signals and test signals for testing wireless communication system. A test is executed by measuring an actual communication state of the wireless communication system.

Abstract: A radio communication terminal, being used in a radio communication systems in which the transmission rate varies depending on radio wave conditions and communication statuses of other users, comprises a reception module which receives packets transmitted by a base station in an idle state of the radio communication terminal, a signal processing module which estimates a transmission rate available in communication based on the packets received by the reception module, and a display module which displays information indicating the transmission rate estimated by the signal processing module.

Abstract: In data communication using radio communication, an inactivity timer value is changed according to various states, so that an unused time of a communication channel in a non-communication time is decreased, and channel use efficiency is raised. A unit for judging an application of packet data to be transmitted and received by a radio base station 408/a radio base station controller 405 is provided, or an inactivity timer value is set through a port number in TCP/UDP header and a traffic pattern and according to a communication content, and the set inactivity timer value is used to control a change from a connected state to a dormant state.

Abstract: In a mobile communication system in which a plurality of base stations are connected to a communication network via a packet transfer node and a transmission rate of a forward link radio channel between a base station and a mobile station dynamically changes, each of the base stations designates a packet transmission rate in accordance with the status of a radio channel of each of mobile stations under control for the packet transmission node, and the packet control node transfers packets destined for each of mobile stations to the base station at the designated transfer rate.