Method and apparatus of quick route setting-up

Abstract

The invention discloses a fast route setup method, comprising the steps of: A. destination node receives route request packet and packs the routing information carried in the route request packet into a corresponding route reply packet to source node of route request packet; and B. judging whether to be able to transmit the route reply packet: if yes, transmitting the route reply information-carrying packet through intermediate node to the source node and otherwise returning to the step A. And it also provides a fast routing establishing device. When receiving the first route request packet from the source node, the destination node waits for a period of time or collects a certain number of route request packets and packs the collected routing information into the same route reply packet and returns the route reply packet to the source node, thus reducing the number of routing control packets, reducing collision of routing control packets at MAC layer and speeding up routing establishment.

Description

technical field [0001] The invention relates to routing technology, in particular to a method and device for establishing a fast route. Background technique [0002] Common mobile networks usually appear in the form of cellular networks or wireless local area networks. In the cellular network, the communication between the mobile terminals must be completed through the transfer of the base station and the mobile switch; in the wireless local area network, the mobile terminal is connected to the existing fixed network through the wireless access point. At the same time, new mobile communication technologies such as Bluetooth and HomeRF are also emerging. These mobile networks and wireless communication technologies are supplements and developments to fixed wired networks. They also require the support of fixed infrastructure, and generally adopt centralized control methods. But in some special application environments or emergency situations, the mobile communication networ...

AI Technical Summary

Problems solved by technology

[0018] In the process of route establishment, since the sending of packets in the Ad hoc network is carried out by broadcasting, and the time for the source node, intermediate node and destination node to send RREQ packets or RREP packets and propagate in the air is relatively concentrated, Therefore, a large number of RREP packets and RREQ packets collide in the MAC layer, and the retransmission caused by the collision greatly affects the speed of route establishment.

Moreover, the number of packets related to routing control in the Ad hoc network is very large, so the speed of routing establishment is further slowed down.

Images