Method of implementing transmission of wireless PHS packet data

A data transmission and wireless packet technology, applied in the field of PHS wireless packet data transmission, can solve the problem of no impact on transmission, achieve low cost and increase bandwidth

Inactive Publication Date: 2009-05-06
LINKAGE SYST INTEGRATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The purpose of the present invention is to utilize the technology of group exchange to realize the wireless data transmission of PHS, has solved following problem: as improving bandwidth: can provide the bandwidth more than 128Kb / s for the user; Share through channel resource: a plurality of users can share wireless channel to carry out data Transmission; Eliminate the impact of handover on wireless data transmission during movement; Base station switching during user movement will not have any impact on data transmission; Always online: it can automatically release channel resources when the user has no data transmission; When there is data transmission, automatically apply for channel resources to realize the always-on function

Method used

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  • Method of implementing transmission of wireless PHS packet data
  • Method of implementing transmission of wireless PHS packet data
  • Method of implementing transmission of wireless PHS packet data

Examples

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Embodiment

[0079] 1). In the following examples, every two PHS base stations are connected through svc.

[0080] 2). In the following example, base station router1 and router2 are both connected to router through svc, but router1 and router2 are not directly connected through svc. The serial ports of these three base stations run RIP routing protocol, using the concept of sub-interface. Because of the use of sub-interfaces, both router1 and router2 have learned the path to access the LAN of the other party. If the sub-interface is not used, router1 and router2 will not learn the route to the LAN of the other party.

[0081] Subinterfaces are multiple virtual interfaces on a physical interface, and can be used to connect multiple networks on the same physical interface. We know that in order to avoid routing loops, the base station supports the splithorizon rule, which only allows routing updates to be distributed to other interfaces of the base station, and will not redistribute routing ...

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Abstract

This invention realizes the PHS wireless dividing data transmission method, which uses X.25 agreement to realize dividing by use of multiple channels to point PPP to adapt PHS wireless dividing data; mobile adapting module is located between the PPP and X.25 SVC virtual circuit by isolation; in the terminal mobile process, switching from A to B with MAL layer released by the virtual circuit; in the process, the MAL layer using new SVC to take place of old SVC to ensure upper layer connection of PPP.

Description

technical field [0001] The invention relates to a method for PHS wireless packet data transmission. Background technique [0002] PHS data communication technology was first commercially used in 1997, supporting single-channel 32Kb / s unrestricted data communication, which belongs to circuit-type data services. In 1999, the PHS air interface standard RCR STD-28 Ver 3.0 was passed, enabling PHS to realize 64Kb / s unrestricted data services by bundling two air service channels. [0003] Due to the large space interference of wireless transmission, time extension, and small base station coverage (PHS adopts micro-cell technology, generally between 200-500m), the data transmission error rate is high, frequent switching, and poor transmission quality. In order to improve data throughput, the PHS Internet Access Forum was established in October 1995, and a unified PHS data transmission control protocol - PIAFS PHS Internet Access Protocol (PIAFS) was formulated in April 1996. [0...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L29/06H04L12/56H04L12/721
Inventor 顾恺顾杰智勇
Owner LINKAGE SYST INTEGRATION
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