Method for distributing link bandwidth in communication network

Abstract

The invention discloses a link circuit distribution method in a communication network, which comprises comparing the size of residual bandwidth and request bandwidth of existing service to distribute bandwidth of link circuit according to residual bandwidth of the existing link circuit after link circuit which can do bandwidth distribution is chosen, wherein the steps of calculating residual bandwidth of existing link circuit comprises utilizing total bandwidth to subtract occupancy bandwidth of optimum grades which are not lower than existing service request on existing link circuit. Since the invention distributes link circuit bandwidth in communication network according to optimum grade information of service request, which utilizes the occupancy bandwidth of optimum grades which are not lower than existing service request on existing link circuit and is subtracted by the total bandwidth to be existing bandwidth to distribute, link circuit bandwidth in communication network is firstly distributed to services whose optimum is higher, the bandwidth firstly tries to be distributed to important and urgent service requests whose optimum grades are higher, and the utilization ratio of bandwidth is higher.

Description

technical field [0001] The invention relates to bandwidth management technology in the field of communication, and more specifically, relates to a link bandwidth allocation method in a communication network. Background technique [0002] In a communication network, in order to support the establishment of a link, it is often necessary to allocate a part of the bandwidth specially. Take the link bandwidth allocation in the CDMA mobile communication system as an example: for all the specific calls of the supported services, the CDMA base station system must allocate the corresponding base station controller (Base Station Controller, referred to as BSC) and base transceiver station (Base Station Controller). Transceiver System (abbreviated as BTS) between the base station controller and base transceiver station (Abis Interface-theinterface of BSC--BTS, abbreviated as ABIS port) link part of the bandwidth to support the establishment of the call link. [0003] The existing meth...

AI Technical Summary

Problems solved by technology

This allocation method is completely allocated according to the order of service requests. Because in the communication network, the priority levels of service requests are different, this allocation method often makes some important and urgent service requests with higher priority The bandwidth cannot be allocated in a timely manner, and some secondary, non-urgent, and low-priority service requests occupy a large amount of bandwidth because of their earlier request time; even some low-priority services are dependent on For the above-mentioned high-priority services, these services occupy a large amount of bandwidth due to their earlier request time, and wait for the completion of the high-priority services they depend on; The request time is late, the request for bandwidth allocation fails, and the next allocation will be made when the bandwidth is sufficient; this leads to the fact that there is obviously enough link bandwidth, but the bandwidth cannot be allocated because of the initial service, and the subsequent service cannot be allocated after the bandwidth is occupied. Complete, affecting the communication efficiency of the entire communication network

[0004] Since there is no good bandwidth allocation method among the links, some links are congested, and there are some links with low usage rate, and the load among the links is unbalanced. The bandwidth resource of the link, the utilization rate of the bandwidth resource of the whole link is low

Due to the small capacity of the previous CDMA base station system, the link bandwidth of the ABIS port is relatively abundant, the problems of unbalanced load among links and low utilization of bandwidth resources are not prominent, but with the rapid development of the capacity of the CDMA base station system The expansion of the link bandwidth of the abundant ABIS port in the past is becoming more and more tense. Therefore, how to strengthen the scheduling management of the link bandwidth of the ABIS port and allocate the bandwidth of the link more reasonably becomes more and more important and urgent.

[0005] In addition, due to the maturity and wider application of other new access systems (such as satellite, Ethernet, optical fiber communication or microwave communication, etc.) in the ABIS port link except E1 connection, the links of different link systems The allocation of bandwidth is carried out separately, and there is no good method for uniformly allocating the link bandwidth of the ABIS port under the coexistence of multiple link standards

Images