MESSAGE DISTRIBUTION SYSTEM, DISTRIBUTION SEQUENCE DETERMINATION DEVICE, DISTRIBUTION SEQUENCE DETERMINATION METHOD, AND DISTRIBUTION SEQUENCE DETERMINATION PROGRAM

• US 20150334175A1
• Filed: 10/11/2013
• Published: 11/19/2015
• Est. Priority Date: 01/11/2013
• Status: Active Grant

• Current Assignee: NEC Corporation
• Original Assignee: NEC Corporation
• Inventors: SHIROSHIMA, Takahiro, ONISHI, Takeo
• Granted Patent: US 9,967,323 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: H04L 47/24 Traffic characterised by specific attributes, e.g. priority or QoS
• CPC Class Codes: H04L 47/74 measures in reaction to resource unavailability
• CPC Class Codes: H04L 47/822 Collecting or measuring resource availability data
• CPC Class Codes: H04L 67/10 in which an application is distributed across nodes in the network software deployment G06F8/60; multiprogramming arrangements G06F9/46
• CPC Class Codes: H04W 76/27 Transitions between radio resource control [RRC] states
• CPC Class Codes: H04W 76/28 Discontinuous transmission [DTX]; Discontinuous reception [DRX]

Abstract

In order to reduce wasteful delays occurring when a mobile terminal whose RRC state is a state wherein communication is possible transfers in a temporarily stopped state, a distribution sequence determination device, which determines the distribution sequence for push messages transmitted to each of multiple terminals, determines the distribution sequence on the basis of whether each of the multiple terminals is in a state wherein communication is possible or is in a temporarily stopped state, so as to transmit the push messages to each of the multiple terminals in a distribution sequence in which terminals in a state wherein communication is possible are given priority over terminals in the temporarily stopped state.

Claims

1. A distribution sequence determination device, comprising:

a terminal state determination unit that acquires information whether each of a plurality of terminals to which a message is transmitted is in a state wherein communication is possible or in a temporarily stopped state; and

a distribution sequence control unit that determines a distribution sequence for the message on the basis of the information so as to transmit the message to each of a plurality of the terminals in a sequence in which the terminal in the state wherein communication is possible is given priority over the terminal in the temporarily stopped state.

2. The distribution sequence determination device according to claim 1, wherein:

the distribution sequence control unit determines the distribution sequence so as to transmit the message to each of the plurality of the terminals in a sequence in which among a plurality of the terminals in the state wherein communication is possible, the terminal whose allowable no communication period required for changing the state from the state wherein communication is possible to the temporarily stopped state is short is given priority over the terminal whose allowable no communication period is long.

3. The distribution sequence determination device according to claim 2, wherein

the distribution sequence control unit determines the distribution sequence so as to transmit the message to each of the plurality of the terminals in a sequence in which the highest priority is given to the terminal whose state is the state wherein communication is possible and whose allowable no communication period is not known.

4. The distribution sequence determination device according to claim 2, wherein

the distribution sequence control unit determines the distribution sequence so as to transmit the message to each of the plurality of the terminals in a sequence in which with respect to the terminal whose state is the state wherein communication is possible and whose allowable no communication period is not known, a length of the allowable no communication period is set to a predetermined length and the terminal whose allowable no communication period is short is given priority over the terminal whose allowable no communication period is long.

5. The distribution sequence determination device according to claim 2, wherein

the allowable no communication period is an estimated period.

6. The distribution sequence determination device according to claim 5, wherein

the allowable no communication period is a period estimated on the basis of at least time at which the terminal ends the last communication.

7. The distribution sequence determination device according to claim 2, wherein

the allowable no communication period is defined as a period obtained by subtracting a period of time from a start time of the non communication transition preparation period to a current time from the non communication transition preparation period that is a no communication period required for changing the state from the state wherein communication is possible to the temporarily stopped state.

8. A message distribution system comprising a distribution sequence determination device and a network device, wherein

the distribution sequence determination device is the distribution sequence determination device according to claim 1 and

the network device distributes a message to a terminal according to a distribution sequence determined by the distribution sequence determination device.

9. A distribution sequence determination, comprising:

acquiring information whether each of a plurality of terminals to which a message is transmitted is in a state wherein communication is possible or in a temporarily stopped state; and

determining distribution sequence on the basis of the information so as to transmit the push message to each of a plurality of the terminals in a sequence in which the terminal in the state wherein communication is possible is given priority over the terminal in the temporarily stopped state.

10. A non-transitory computer readable medium storing a distribution sequence determination program which causes a computer to function as

terminal state determination unit that acquires information whether each of a plurality of terminals to which a message is transmitted is in a state wherein communication is possible or in a temporarily stopped state;

and

distribution sequence control unit that determines a distribution sequence on the basis of the information so as to transmit the message to each of a plurality of the terminals in a sequence in which the terminal in the state wherein communication is possible is given priority over the terminal in the temporarily stopped state.