BSSGP
BSSGP is a protocol used in the GPRS mobile packet data system. It denotes Base Station System GPRS Protocol. It transfers information between two GPRS entities SGSN and BSS over a BSSGP Virtual Connection (BVC). This protocol provides radio-related quality of service and routing information that is required to transmit user data between a BSS and an SGSN. It does not carry out any form of error correction.
BSSGP is used to handle the flow control between SGSN and BSS. The flow control mechanism implemented in SGSN node, only for GSM, is used to prevent congestion and loss of data due to overload in the BSS. This mechanism controls the flow from the SGSN to the BSS but not in the uplink direction.
The primary functions of BSSGP include:
- Provision by an SGSN to a BSS of a radio related information used by the RLC/MAC function in the download link.
- Provision by a BSS to an SGSN of radio related information derived from the RLC/MAC function in the uplink.
- Provision of functionality to enable two physically distinct nodes, an SGSN, a BSS, to operate node management control functions (QoS, flow control).
It is specified in 3GPP TS 48.018.
Sources and credits
This article is adapted from the Wikipedia article “BSSGP”, written by its contributors and licensed under CC BY-SA 4.0. Fathomly has changed the layout, removed citation markers, navigation and maintenance notices, and adjusted punctuation. This adapted version is shared under the same license. For references, see the original article.
Images, from Wikimedia Commons:
- BSSGP.jpg by David E Cooper, CC BY-SA 4.0
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