Method of distributing ABIS interface band width resource

Abstract

The present invention provides a piezoelectric transducer (200) that includes at least two poled piezoelectric regions (220, 230) disposed in a side-by-side arrangement and connected in series with the poling directions reversed through the series connection, meaning that the "north pole" of one region is connected to the "south pole" of an adjacent region. The at least two regions can be within the same piece of piezoelectric material (210), or can be separate pieces of piezoelectric material. Transducers of the present invention may be particularly suited to detecting vibrations such as bending waves in a plate. For example, transducers of the present invention may be affixed to a surface of a plate and used to detect vibrations caused by or affected by touches to the plate to determine information related to the touches, such as touch position.

Description

technical field [0001] The invention relates to the technical field of Code Multiple Access (CDMA), in particular to a method for allocating bandwidth resources of an ABIS interface. Background technique [0002] In the CDMA system, the interface between the Base Station Controller (BSC) and the Base Transceiver Station (BTS) is called the ABIS interface, and the ABIS interface can use E1 / T1 mode for transmission. In the CDMA1X system, the ABIS interface is often reused as an asynchronous transfer mode (ATM), and the connection between the BSC and the BTS is realized in the form of a permanent virtual channel (PVC). [0003] figure 1 Shown is a schematic diagram of the transmission content within the ABIS interface. The contents transmitted in the ABIS interface between BSC and BTS include: business and signaling. Among them, services include data services and voice services, etc.; signaling includes: signaling used to transmit paging channel processes and access channel ...

AI Technical Summary

Problems solved by technology

[0009] The defect of the above method is that if some or some calls are established at the beginning, due to the less data traffic, the SCH channel for transmitting data services is not applied, and within a period of time after the call is established, due to the data traffic The SCH channel is established again due to the increase of traffic, the resources occupied by the SCH channel are not counted within the occupied range by the bandwidth management module. The consumed resource of is inconsistent

This may lead to the result that the resources of a certain PVC have actually been allocated, but the bandwidth management module still allocates new calls to this PVC, so that the established calls are dropped

[0010] In the prior art, no matter whether the resources of the ABIS interface are managed or not, there are the following defects: the subsequent voice service may occupy the bandwidth resource of the voice service that has already established a connection, thereby causing call drop; It is not considered separately from the data service. When the data service occupies too much bandwidth resources, the voice service cannot be accessed. When the voice service takes up too much bandwidth resources, the resource bandwidth in the ABIS interface cannot be allocated for the data service.

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