摘要:
A communication system includes an exchange, one or a plurality of telephones connected to the exchange via a telephone circuit network, and one or a plurality of computers connected to the exchange at least via the telephone circuit network. Among those telephones and computers, a first telephone is correlated with a first computer. The first telephone sends the first computer a first call reception state report indicating a call reception state of the first telephone via a first route. When receiving the first call reception state report, the first computer sends the exchange a prescribed telephone circuit control instruction for a call directed to the first telephone. When receiving the prescribed telephone circuit control instruction, the exchange performs a telephone circuit control for the call directed to the first telephone according to the prescribed telephone circuit control instruction.
摘要:
There are a wireless access network comprising a radio network gateway apparatus (101), radio access network control apparatus (102a), (102b) and a base stations (103a), (103b) and a terminal (104) accommodated in the wireless access network and when the terminal (104) enters into a new cell B, a packet data is transmitted from the source radio access network control apparatus (102a) to the target radio access network control apparatus (102b). Further, when the terminal (104) switches the radio access network control apparatus (102) with which the terminal (104) communicates, the target radio access network control apparatus (102b) switches a transmission line of a data to be transmitted to the terminal (104) from a wireless data to a packet data in the source radio access network control apparatus (102a), and from the source packet data to a target packet data in a synchronized manner at each timing. This reduces traffic which occurs when switching a radio access network control apparatus to be communicated while the terminal moves between cells and prevent packet interruption in a wireless access network providing packet transmission service.
摘要:
A corresponding table between a number of a cell and a main base station (102) accommodating the cell is prepared in a node (wireless network control apparatus (101) or main base station (102)) within a radio access network. When a terminal (104) is moved and enters an overlapped area of cells (a) and (b) from an original cell (a), in the case that a main base station (102a) to which the terminal (104) was connected in the cell (a) can accommodate the cell (b) that the terminal (104) has entered, the sub base station (103b) is connected to the main base station (102a), and site diversity is performed in the main base station (102a). Thus, when site diversity is performed between main base stations in a radio access network using a base station in which a baseband processing section is separated from a radio transmission/reception section, traffic flowing between the wireless network control apparatus and the base station is reduced.
摘要:
Based on traffic that includes a plurality of types of calls and varies with time, resources are located efficiently in a base transceiver station that has a plurality of cards that perform baseband signal processing, and prevention of the occurrence of call loss is contrived. There are provided signal processing cards that perform baseband signal processing and so forth, a radio resource monitoring section that monitors the state of signal processing cards, a radio resource control section that performs signal processing card resource allocation and shifting, and a traffic recording section that records the traffic generated in different time periods; and call loss when accommodating a most frequently generated call in each time period can be prevented by, as far as possible, determining a threshold value for the number of vacant resources from the call that is to be accommodated, activating relocation processing when the number of vacant resources in the base transceiver station becomes lower than the threshold value, and varying the threshold value based on the number of required resources of the most frequently generated calls in each time period.
摘要:
A radio network controller which includes radio resource administration means for administrating a state of the use of radio resource, rack information administration means for administrating a state of the use of resource at base band signal processing unit in base transceiver station, and control means for selecting a call frequency used in base transceiver station and allocating it to a certain rack of base band signal processing unit. In the above configuration, a percentage of loss calls which occurred due to an insufficiency of empty amount with the radio resource, or of empty amount with the base band resource, can be lowered.
摘要:
A base transceiver station enabling increases in the number of calls that can be accommodated at the same time. In the apparatus, each of signal processing cards 103-1 to 103-M has a predetermined number of resources to perform baseband processing on a call. Group creating section 108 compares the number of required resources of a call with a predetermined number, and sorts the call to a group corresponding to a result of the comparison. Resource control section 104 allocates a call to connect to either of signal processing cards 103-1 to 103-M. Further, resource control section 104 reallocates the call to another signal processing card of signal processing cards 103-1 to 103-M, according to the group to which the call, allocated to either of signal processing cards 103-1 to 103-M, is sorted.
摘要:
A base station apparatus 102 is provided with a terminal state management section 107 that manages the state as to whether a communication terminal apparatus 101 which belongs to the cell covered by the own apparatus is in communication or waiting for a call, a decision section 1051 that decides whether the communication terminal apparatus 101 is stationary or moving and a resource reservation allocation section 1052 that allocates reservations of resources according to the respective numbers of moving terminal apparatuses and stationary terminal apparatuses calculated based on the decision result, and performs state management according to the actual state of the communication terminal apparatus 101 and allocates resources to the respective moving terminal apparatuses and stationary terminal apparatuses appropriately.
摘要:
A table identifying a correspondence between a cell and a main base station accommodating the cell is prepared in a node (wireless network control apparatus or main base station) within a radio access network. When a terminal is moved and enters an overlapped area of cells (a) and (b) from an original cell (a), where a main base station (to which the terminal was connected in the cell (a) can accommodate the cell (b) that the terminal has entered, the sub base station is connected to the main base station, and site diversity is performed in the main base station. When site diversity is performed between main base stations in a radio access network using a base station in which a baseband processing section is separated from a radio transmission/reception section, traffic flowing between the wireless network control apparatus and the base station is reduced.
摘要:
A radio base station device (3) comprises: a call processing control unit for transferring a signaling control signal, and transmitting a failure detection packet to a plurality of transmission paths (5) connected to a radio network controller so as to detect failure of each of the transmission paths (5); a baseband signal processing unit for transferring a user data control signal; a channel management table storing a currently set up channel and a transmission path used by the channel, as being associated with each other; and a channel management control unit for, in response to detection of failure of a transmission path (5) by the call processing control unit, receiving information indicating a state of each of the transmission paths from the call processing control unit, changing a currently set up channel to a transmission path (5) having no failure detected, and notifying the call processing control unit and the baseband signal processing unit of an address related to the transmission path (5) to which the currently set up channel is changed. Consequently, upon failure of an IP transmission path, the IP transmission path can be changed without interruption of voice and disconnection of a call at the time of failure.
摘要:
It is an object to achieve both improvements in system capacity and load distribution, by allocating resources so as not to generate the call loss as possible. A protected call is set, the resource allocating scheme is varied according to the resource state of each card, call allocating processing is performed to distribute loads at the low traffic time, while being performed to use up as possible resources of a card with a high in-use rate at the high traffic time, and it is thereby possible to obtain the advantageous effect of using resources with high efficiency to enable the load distribution over signal processing cards without generating the call loss as possible.