1. A method for real time trunk member allocation, the method comprising:
monitoring traffic volume between a local switch and a first remote switch;
determining that traffic volume between the local switch and the first remote switch justifies allocating additional trunk resources between the local switch and the first remote switch;
dynamically selecting a first trunk member between the local switch and the first remote switch;
dynamically negotiating a first bearer path between the local switch and the first remote switch through a first set of bearer resources including a dynamically allocatable bearer resource in response to the determined justification;
associating the negotiated first bearer path to the first selected trunk member; and,
marking the selected first trunk member as available for use.
2. The method for real time trunk member allocation of claim 1 further comprising:
determining that the traffic volume between the local switch and the first remote switch no longer justifies allocating the additional trunk resources between the local switch and the first remote switch;
marking the first selected trunk member as unavailable for use; and,
dynamically tearing down the first bearer path associated with the first selected trunk member, thereby freeing the dynamically allocatable bearer resource for dynamic reallocation.
3. The method for real time trunk member allocation of claim 2 further comprising:
monitoring traffic volume between the local switch and a second remote switch;
determining that the traffic volume between the local switch and the second remote switch justifies allocating additional trunk resources between the local switch and the second remote switch;
dynamically selecting a second trunk member between the local switch and the second remote switch;
dynamically negotiating a second bearer path between the local switch and the second remote switch through a second set of bearer resources including the dynamically allocatable resource;
associating the negotiated second path to the second selected trunk member; and,
marking the negotiated second trunk member as available for use.
4. The method for real time trunk member allocation of claim 3 further comprising:
determining that the traffic volume between the local switch and the second remote switch no longer justifies allocating the additional trunk resources between the local switch and the second remote switch;
marking the negotiated second trunk member as unavailable for use; and,
dynamically tearing down the associated second bearer path, thereby freeing the trunk resource for dynamic reallocation.
5. The method for real time bearer resource allocation of claim 1 wherein dynamically negotiating a first bearer path comprises:
transmitting a message requesting the establishment of a switch-to-switch call through the dynamically allocatable bearer resource.
6. The method for real time bearer resource allocation of claim 5 wherein transmitting a message requesting the establishment of a switch to switch call comprises:
transmitting a first ISUP IAM message including a directory number associated with the remote switch.
7. The method for real time bearer resource allocation of claim 5 wherein transmitting a message requesting the establishment of a switch to switch call comprises:
transmitting a first ISUP IAM message including a directory number associated with the remote switch and associated with a real time trunk allocation function.
8. The method for real time bearer resource allocation of claim 5 wherein transmitting a message requesting the establishment of a switch to switch call comprises:
transmitting a SIP INVITE message including an address designating the remote switch.
9. The method for real time bearer resource allocation of claim 5 wherein transmitting a message requesting the establishment of a switch to switch call comprises
transmitting a BICC IAM message including an address designating the remote switch.
10. The method for real time bearer resource allocation of claim 9 wherein transmitting a message requesting the establishment of a switch to switch call comprises
transmitting an ATM UNI SETUP message.
11. The method for real time trunk member allocation of claim 1 wherein marking the negotiated first member as available for use comprises:
transmitting an ISUP UBL message
12. A system operative to dynamically manage a trunk member, the apparatus comprising:
a bearer layer signaling network;
a switching element connected to a bearer resource and a plurality of additional bearer resources and the bearer layer signaling network;
a database associating each of the additional trunk members with at least one remote switch, the database also associating the switching element with a trunk member label identifying the trunk member and a status parameter;
a bearer layer communications element operative to transmit and receive signaling messages to and from a bearer layer signaling network, the signaling messages communicating information related to a switch state of the switching element;
a call layer communications element operative to transmit and receive signaling messages to and from a remote switch, the signaling messages communicating information related to values of the status parameters; and,
an information processor connected to the database, the bearer layer communications element and the call layer communications element, the information processor being operative to send andor receive a message to andor from a remote switch through services of the bearer layer or call layer communications element the message being associated with the trunk member label, and control the switching element through services of the bearer layer communications element to associate or disassociate the trunk member to or from one of the additional bearer resources.
13. The system of claim 12 further comprising:
a traffic monitor operative to monitor a traffic load on a plurality of trunk members;
wherein the information processor is further connected to the traffic monitor, the information processor being operative to receive a traffic report from the traffic monitor and determine if a traffic load on one or more trunk resources is above a threshold and, if the traffic load is above the threshold, select a trunk member to use; select the bearer resource to share the traffic load of the one or more trunk resources, send one or more messages to a remote switch associated with the one or more trunk resources and to network elements associated with a bearer path between the local switch and the remote switch, the one or more messages including a trunk member label associated with the remote switch, the one or more messages directing the remote switch and the network elements to establish the bearer path through the bearer resource, the switching element and at least one of the additional bearer resources, andor directing the remote switch to update a status parameter of the trunk member to a value of active or unblocked.
14. The system of claim 13 wherein the information processor is further operative to receive the traffic report from the traffic monitor and determine if the traffic load on the plurality of resources is below a second threshold and if the traffic load is below the second threshold, selecting the trunk member to be removed from the plurality of trunk members, send one or more messages to the remote switch and any network elements associated with the path between the local switch and the remote switch, the one or more messages including the trunk member label associated with the remote switch andor directing the remote switch to change the status parameter associated with the trunk member associated with the remote switch to an in-active or blocked state, and directing the switching element and the network elements associated with the bearer path to disconnect the bearer resource and the at least one additional bearer resource from the path.
15. The system of claim 12 wherein the information processor is further operative to receive a message from a remote switch of the at least one remote switches through the services of the call layer communications element, the message including a label associated with the trunk member and directing the information processor to change the status parameter associated with the trunk resource to a value of active or unblocked.
16. The system of claim 15 wherein the information processor is further operative to receive a message from the remote switch of the at least one remote switches through the services of the call level communications element, the message including a label of the trunk member and directing the information processor to change the status parameter associated with the trunk member to a value of in-active or blocked.
17. The system of claim 12 where in the information processor is operative to send andor receive a ISUP IAM or REL message to andor from a remote switch through services of the bearer layer communications element, the message being associated with the bearer resource, and control the switching element to connect or disconnect the bearer resource to one of the additional bearer resources as at least part of a path to the remote switch.
18. The system of claim 12 where in the information processor is operative to send andor receive a SIP INVITE or BYE message to andor from a remote switch through services of the bearer layer communications element, the message being associated with the bearer resource, and control the switching element to connect or disconnect the bearer resource to one of the additional bearer resources as at least part of a path to the remote switch.
19. The system of claim 12 where in the information processor is operative to send andor receive a BICC IAM or REL message to andor from a remote switch through services of the bearer layer communications element, the message being associated with the bearer resource, and control the switching element to connect or disconnect the bearer resource to one of the additional bearer resources as at least part of a path to the remote switch.
20. The system of claim 19 where in the information processor is operative to send andor receive a ATM UNI SETUP message to andor from a remote switch through services of the bearer layer communications element, the message being associated with the bearer resource.
21. A system for real time trunk member allocation, the system comprising:
means for monitoring traffic volume between a local switch and a first remote switch;
means for determining that traffic volume between the local switch and the first remote switch justifies allocating additional trunk resources between the local switch and the first remote switch;
means for selecting a first trunk member between the first local switch and the first remote switch;
means for dynamically negotiating a first bearer path between the first local switch and the first remote switch through a first set of bearer resources including a dynamically allocatable bearer resource in response to the determined justification;
means for associating the first selected trunk member to the negotiated first bearer path; and,
means for marking the selected first trunk member as available for use.
22. The system for real time trunk member allocation of claim 21 further comprising:
means for determining that the traffic volume between the local switch and the first remote switch no longer justifies allocating the additional trunk resources between the local switch and the first remote switch;
means for marking the negotiated first trunk member as unavailable for use; and,
means for dynamically tearing down the first bearer path, thereby freeing the dynamically allocatable bearer resource for dynamic reallocation.
23. The system for real time trunk member allocation of claim 22 further comprising:
means for monitoring traffic volume between the local switch and a second remote switch;
means for determining that the traffic volume between the local switch and the second remote switch justifies allocating additional trunk resources between the local switch and the second remote switch;
means for selecting a second trunk member between the local switch and the second remote switch;
means for dynamically negotiating a second bearer path between the local switch and the second remote switch through a second set of bearer resources including the dynamically allocatable resource;
means for associating the second selected trunk member to the negotiated second bearer path; and,
means for marking the selected second trunk member as available for use.
24. The system for real time trunk member allocation of claim 23 further comprising:
means for determining that the traffic volume between the local switch and the second remote switch no longer justifies allocating the additional trunk resources between the local switch and the second remote switch;
means for marking the negotiated second trunk member as unavailable for use; and,
means for dynamically tearing down the second bearer path, thereby freeing the dynamically allocatable bearer resource for dynamic reallocation.
25. The system for real time trunk member allocation of claim 21 wherein the means for dynamically negotiating a first bearer path comprises:
means for transmitting a message requesting the establishment of a switch to switch call through the dynamically allocatable bearer resource.
26. The system for real time trunk member allocation of claim 25 wherein the means for transmitting a message requesting the establishment of a switch-to-switch call comprises:
means for transmitting a first ISUP IAM message including a directory number associated with the remote switch.
27. The system for real time trunk member allocation of claim 25 wherein the means for transmitting a message requesting the establishment of a switch-to-switch call comprises:
means for transmitting a first ISUP IAM message including a directory number associated with the remote switch and associated with a real time trunk allocation function.
28. The system for real time trunk member allocation of claim 25 wherein the means for transmitting a message requesting the establishment of a switch-to-switch call comprises:
means for transmitting a SIP INVITE message including an address designating the remote switch.
29. The system for real time trunk member allocation of claim 25 wherein the means for transmitting a message requesting the establishment of a switch-to-switch call comprises
means for transmitting a BICC IAM message including an address designating the remote switch.
30. The system for real time trunk member allocation of claim 29 wherein the means for transmitting a message requesting the establishment of a switch-to-switch call comprises
means for transmitting a ATM UNI SETUP message.
31. A method for dynamic trunk member allocation, the method comprising:
monitoring traffic volume between a local switch and a first remote switch;
determining that traffic volume between the local switch and the first remote switch justifies allocating additional trunk resources between the local switch and the first remote switch;
placing a switch to switch call between the local switch and the first remote switch; and,
transmitting an ISUP UBL message in association with a CIC number related to the member, thereby marking a first member as available for use.
32. The method for dynamic trunk member allocation of claim 31 further comprising:
determining that the traffic volume between the local switch and the first remote switch no longer justifies allocating the additional trunk resources between the local switch and the first remote switch;
transmitting an ISUP BLO message in association with the CIC number related to the member, thereby marking the first member as unavailable for use; and,
dynamically tearing down the first bearer path, thereby freeing the dynamically allocatable bearer resource for dynamic reallocation.
33. The method for dynamic trunk member allocation of claim 31 further comprising:
monitoring traffic volume between the local switch and a second remote switch;
determining that the traffic volume between the local switch and the second remote switch justifies allocating additional trunk resources between the local switch and the second remote switch;
placing a switch to switch call between the local switch and the second remote switch; and,
transmitting an ISUP UBL message in association with a CIC number related to the member, thereby marking a second member as available for use.
34. The method for dynamic trunk member allocation of claim 31 wherein placing a switch to switch call between the local switch and the first remote switch comprises transmitting an ISUP IAM message from the local switch to the first remote switch or to an intervening network element, the ISUP IAM message including a directory number of the remote switch and a CIC number associated with the member.
35. The method for dynamic trunk member allocation of claim 31 wherein placing a switch to switch call between the local switch and the first remote switch comprises transmitting an SIP INVITE message from the local switch to the first remote switch, the SIP INVITE message including a network address of the remote switch and a CIC number associated with the member.
36. The method for dynamic trunk member allocation of claim 31 wherein placing a switch to switch call between the local switch and the first remote switch comprises transmitting an BICC IAM message from the local switch to the first remote switch, the BICC IAM message including a network address of the remote switch and a CIC number associated with the member.
37. The method for dynamic trunk member allocation of claim 31 wherein placing a switch to switch call between the local switch and the first remote switch comprises transmitting an BICC IAM message from the local switch to the first remote switch, the BICC IAM message including a network address of the remote switch and an ATM address associated with the resource.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. A magnetic resonance imaging apparatus for imaging a coronary artery, said apparatus comprising:
a pulse sequence generating unit which, in conjunction with magnetic gradient and RF field generating units,
repeatedly executes and applies a data acquisition MRI pulse sequence at least twice using the same phase encoding increment on a subject to be imaged;
a data acquiring unit which acquires plural sets of MRI data respectively corresponding to said repeated MRI pulse sequences using the same phase encoding increment;
a heartbeat information acquiring unit which acquires heartbeat information of the subject concerning a first heartbeat and a second later occurring heartbeat;
said pulse sequence generating unit using the first heartbeat information to trigger the data acquisition MRI pulse sequence within a predetermined cardiac time phase;
an extracting unit which selects subsets of said plural sets of MRI data based on a predetermined cardiac time phase of the acquired second heartbeat information and from respectively corresponding time ranges by a predetermined interval measured after data acquisition backward in time from a reference cardiac time phase determined by the second heartbeat information; and
a reconstructing unit which reconstructs an image of the patient’s heart tissue during a predetermined cardiac time phase even if the heart rate of the patient changes by reconstructing an image from the selected subsets of MRI data.
2. An apparatus according to claim 1, wherein: the reconstructing unit reconstructs a three-dimensional image by using the selected subsets of MRI data.
3. An apparatus according to claim 1, wherein: the extracting unit selects subsets of MRI data from two sets of MRI data that have been acquired in successive adjacent time spans in the time domain.
4. An apparatus according to claim 1, wherein:
the pulse sequence generating unit continuously generates the data acquisition pulse sequences.
5. An apparatus according to claim 1, further comprising an adjusting unit which adjusts the predetermined interval on the basis of biometric information of the subject.
6. An apparatus according to claim 5, wherein:
the biometric information represents the time occurrence of a heartbeat.
7. An apparatus according to claim 5, wherein:
the reconstructing unit reconstructs cine images respectively corresponding to each of different cardiac time phases, and
the adjusting unit adjusts the predetermined interval so as to include a cardiac time phase corresponding to a user-selected one of said cine images.
8. An apparatus according to claim 5, wherein:
the extracting unit selects subsets of MRI data for each of different predetermined intervals,
the reconstructing unit reconstructs a plurality of reference images from said selected subsets of MRI data for each of different predefined intervals, and
the adjusting unit adjusts the predetermined interval so as to include MRI data corresponding to a user-selected one of said reference images.
9. An apparatus according to claim 5, which further comprises a calculating unit which calculates a heartbeat stop interval in one heartbeat cycle from heartbeat information of the subject, and in which:
the extracting unit selects subsets of acquired different MRI data sets when the predetermined interval does not overlap the heartbeat stop interval,
the reconstructing unit reconstructs a plurality of reference images from the selected subsets of different MRI data sets, and
the adjusting unit adjusts the predetermined interval so as to include acquired MRI data corresponding to a user-selected one of said reference images.
10. An apparatus according to claim 5, which further comprises a designating unit which designates a heartbeat stop interval in one heartbeat cycle of the subject based on a cine image of the subject acquired in advance or on an input from the user, and in which:
the extracting unit selects subsets of acquired different MRI data sets when the predetermined interval does not overlap the heartbeat stop interval,
the reconstructing unit reconstructs a plurality of reference images from the selected subsets of different MRI data sets, and
the adjusting unit adjusts the predetermined interval so as to include acquired MRI data corresponding to a user-selected one of said reference images.
11. An apparatus according to claim 1, wherein the extracting unit selects subsets of MRI data preferentially at data acquisition times closest to a predetermined cardiac time phase.
12. An apparatus according to claim 1, wherein:
the pulse sequence generating unit executes repetitive generation of a data acquisition pulse sequence based on the same phase encoding increment for a period of time longer than at least an average heartbeat time of the subject.
13. An apparatus according to claim 1, wherein:
the extracting unit selects subsets of MRI data and rearranges time sequences of said selected subsets of data to provide a complete composite set of MRI data from a reference time but having a continuous phase encoding increment.
14. A magnetic resonance imaging apparatus control method for imaging a coronary artery, said method, comprising:
repeatedly executing a data acquisition MRI pulse sequence using the same phase encoding increments on a subject to be imaged;
acquiring plural sets of MRI data respectively corresponding to said repeated MRI pulse sequences using the same phase encoding increments;
acquiring heartbeat information of the subject concerning a first heartbeat and a second later occurring heartbeat;
using said first heartbeat information to trigger the repeated execution of said MRI pulse sequence;
selecting subsets of said plural sets of MRI data based on a predetermined cardiac time phase of the acquired second heartbeat information and from respectively corresponding time ranges by a predetermined interval measured after data acquisition backward in time from a reference cardiac time phase determined by the second heartbeat information; and
reconstructing an image of the patient’s heart tissue during a predetermined cardiac time phase even if the heart rate of the patient changes from the selected subsets of MRI data.