A kind of method and device for adjusting voice code rate

Abstract

The invention provides a method for coordinating the voice service AMR rate and the number of voice services provided by a cell in a trunking service, a core network and a base station. A base station cell sets a suggested value of the voice service AMR rate according to the RB resource serve rate occupation ratio threshold of a GBR service. The cell only builds a voice bearer not higher than the suggested value, and for an AMR rate that exceeds the suggested value, feedback to a core network fails; and the core network maintains the suggested value of the voice service AMR rate of the cell according to a GBR service rate change of the cell and a response of the cell to building of a voice service bearer, and adjusts the voice service AMR rate of the cell according to the suggested value. Coordination of the voice service AMR rate and the GBR service of the cell is realized, thereby ensuring a balance between the quality and the number of voice services.

Description

technical field [0001] The invention relates to the field of communication technology, in particular to a method and device for adjusting a speech code rate. Background technique [0002] In the trunking communication system, the air interface resources of the base station are limited, and the transmission capacity of the air interface is also limited. Therefore, the higher the transmission rate of a single user, the fewer users the base station can support. Currently, an adaptive multi-rate (Adaptive Multi-Rate, AMR) voice standard is used in trunking communication systems for voice transmission. The higher the bit rate of AMR, the better the voice quality. Therefore, it is up to the terminal to select the AMR rate suitable for itself, which can guarantee the best voice quality, but this will limit the number of user accesses. [0003] In the prior art, the administrator configures a unified AMR code rate in the core network equipment, so as to realize the same AMR code r...

AI Technical Summary

Problems solved by technology

[0004] It is labor-intensive to determine the number of voice users in the current trunking communication system through the administrator, and the unified AMR code rate configured has a certain lag, which is difficult to meet the actual needs of the network. On the other hand, because terminals pass through different base stations To access the core network, some base stations may have a large number of terminal accesses, and some base stations may have a small number of terminal accesses. The use of a unified AMR code rate in the entire trunking communication system will lead to unbalanced resource utilization.

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