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Communication control method and wireless base station

A wireless base station and communication control technology, applied in wireless communication, electrical components, network data management, etc., can solve the problem of consuming wireless resources of the base station, and achieve the effect of preventing consumption and increasing the efficiency of switching opportunities

Inactive Publication Date: 2015-11-25
MITSUBISHI ELECTRIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At this time, there is a problem that when the base station closest to the mobile station assumes the cellular network management function every time the mobile station moves, a control packet for transferring the context of the mobile station is generated, and radio resources between base stations are consumed.

Method used

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  • Communication control method and wireless base station
  • Communication control method and wireless base station
  • Communication control method and wireless base station

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0034] figure 1 It is a diagram showing an example of a multi-hop cellular network (multi-hop cellular wireless system) to which the communication control method of the present invention is applied. This system includes a gateway 1 , wireless base stations 2A, 2B, 2C, 2D, and a wireless mobile station 3 .

[0035] exist figure 1 Among them, the gateway 1 has a connection interface with the core network, and relays traffic between the multi-hop cellular network and the core network. The wireless base stations 2A to 2D perform wireless relay between the gateway 1 and the wireless mobile station 3 in order to send data transmitted from the wireless mobile station 3 to the gateway 1 and to transmit data transmitted from the gateway 1 to the wireless mobile station 3 . In addition, each radio base station has a cellular network management function for performing radio resource management and mobility management on the radio mobile station 3 . However, for a wireless mobile stati...

Embodiment approach 2

[0071] Next, a communication control method according to Embodiment 2 will be described. In Embodiment 1, the control operation in the case where there is a single (fixed) gateway communicating with the core network was described, but in this embodiment, an operation example in the case where there are multiple gateways and switching occurs with handover will be described. In the data forwarding path, the gateway is also switched.

[0072] Figure 7 It is a diagram showing an example of a multi-hop cellular network to which the communication control method of Embodiment 2 is applied. This system includes gateways 1X and 1Y, a plurality of wireless base stations 2 ( 2A, 2B, 2C, 2D), and wireless mobile stations 3 . In addition, these constituent elements have the same internal structure as each constituent element described in the first embodiment. That is, the structures of gateways 1X and 1Y become figure 2 In the configuration shown, the configurations of the wireless b...

Embodiment approach 3

[0091] Next, a communication control method according to Embodiment 3 will be described. In this embodiment, as in the first embodiment, the operation in the case where the switching operation of the gateway does not occur when switching the data transfer path will be described.

[0092] Figure 9 It is a diagram showing an example of a multi-hop cellular network to which the communication control method of Embodiment 3 is applied. The system includes a gateway 1 , a plurality of wireless base stations 2 ( 2A, 2B, 2C, 2D), and a wireless mobile station 3 . In addition, these constituent elements have the same internal structure as each constituent element described in the first embodiment. However, the control operation at the time of handover of the wireless mobile station 3 is the same as that described in Embodiment 1 (see Figure 5 as well as Figure 6 ) are partially different.

[0093] In addition, in Figure 9 , used in the description of Embodiment 1 figure 1 Si...

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Abstract

The present invention provides a communication control method executed in a multi-hop cellular network including at least one gateway and a plurality of radio base stations, the communication control method including: a first radio base station that is performing the radio resource management and the movement management concerning a radio mobile station requesting, when the first radio base station determines that it is necessary to switch a connection destination of the radio mobile station, a second radio base station at a handover destination to perform handover processing and instructing the radio mobile station (a handover execution mobile station) to perform handover to the second radio base station; and the second radio base station determining, based on the number of times of transfer until a signal transmitted from the first radio base station reaches the own station, whether to change the radio base station that performs the radio resource management and the movement management concerning the handover execution mobile station.

Description

technical field [0001] The present invention relates to a communication control method and a wireless base station used in a multi-hop cellular wireless system formed by ad hoc network technology. Background technique [0002] As a method of transmitting data transmitted from a transmitting terminal to a receiving terminal that cannot perform direct wireless communication by performing multi-hop forwarding by other wireless communication terminals, there is a technique called an ad hoc network. In an ad hoc network, it is known to use routing protocols such as DSR (Dynamic Source Routing, Dynamic Source Routing) and AODV (Adhoc On-Demand Distance Vector, Adhoc On-Demand Distance Vector) between wireless communication terminals constituting the network, thereby establishing The technology of the path between (for example, refer to Non-Patent Document 1). [0003] On the other hand, in the packet switching control standardized in 3GPP (3rd Generation Partnership Project, 3rd ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W36/00H04W8/08
CPCH04W36/30H04W36/0005H04W36/0016H04W36/0066H04W36/0072H04W36/0083H04W36/08H04W36/00837H04W36/0085
Inventor 青山哲也高塚雄也
Owner MITSUBISHI ELECTRIC CORP
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