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Feedback-Based Typing of Transport Networks

A technology of transmission network and communication transmission network, which is applied in the field of feedback-based classification of transmission network, and can solve the problems of inability to provide relative service differentiation, static classification rate mechanism that cannot handle traffic mixing, and service differentiation.

Inactive Publication Date: 2018-04-17
TELEFON AB LM ERICSSON (PUBL)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, relative service differentiation cannot be provided in all cases using static green rates
Specifically, the static profiling rate mechanism can only handle bottleneck capacity changes in per-bearer resource sharing to a limited extent by using more colors
Also, the static profiling rate mechanism cannot handle all traffic mixes in a per-bearer resource share
This means that existing mechanisms cannot provide very effective relative service differentiation

Method used

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  • Feedback-Based Typing of Transport Networks
  • Feedback-Based Typing of Transport Networks
  • Feedback-Based Typing of Transport Networks

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0023] Embodiments described herein apply per-bearer bandwidth profiling to control resource sharing among bearers carrying different services. The embodiments use a "color" typing scheme of the type described above.

[0024] figure 2 is a schematic diagram of TN 212 using bandwidth profiling for each of the two bearers, with figure 1 Similar to that shown. An example is an LTE system with two bearers 202 , 204 each carrying data packets between the PDN-GW 206 and the eNodeB 208 via the S-GW 210 and through the TN 212 . Such as figure 1 As in the above, the bearers 202 and 204 are designated as the S5 / S8 bearers 202a and 204a between the PDN-GW 206 and the S-GW 210, the S1 bearers 202b and 204b on the TN 212 from the S-GW 210, and the wireless network outside the eNodeB 208 Bearers 202c, 204c. Each bearer is assigned a bandwidth profiler: profiler 214 for bearer 202 and profiler 216 for bearer 204 . Each bearer also has a "green" rate (CIR) computation module 214 a , 21...

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Abstract

The invention provides a method of transmitting data packets over a communication transport network. The data packet is carried by multiple bearers, and each bearer carries a data packet related to a different service among the multiple services. In the method, for each bearer, independently of the other bearers, bandwidth profiling is applied to the bearer's data packets to identify and mark the data packets in each bearer that comply with the determined maximum information rate for that bearer. The data packets are forwarded for transmission over the transport network. If there is not enough bandwidth available in the transmission network for the transmission of all data packets, the data packets which are not identified by the profiling as matching are discarded and thus not transmitted via the transmission network. Data packets of the bearers transported over the transport network are monitored to determine whether there is any loss of data packets that should have been transported over the transport network, indicating congestion in the transport network. Based on the monitoring, a maximum information rate of the bearer is adjusted.

Description

technical field [0001] The present invention relates to improvements in the handling of data communications sent over a transport network. Background technique [0002] The transport network TN is used to carry data signals between a radio base station RBS (such as a NodeB or eNodeB in a 3G long-term evolution LTE network) and a serving gateway S-GW or a packet data gateway PDN-GW. TNs may be operated by mobile network operators or third-party transport providers. In the latter case, there is a Service Level Agreement (SLA) between the mobile and transport operators. With the introduction of 3G and 4G technologies, digital data communication is increasing rapidly, and TN may frequently become the bottleneck of the entire data transmission process. Accordingly, various systems and methods have been proposed to improve or prioritize the manner in which bearer transport data packets are handled. [0003] Service differentiation in the radio access network RAN ​​is a compleme...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W28/02H04L12/813H04L47/20
CPCH04L47/263H04W28/0257H04L47/20H04W28/0247H04W28/082H04L43/0882H04L47/11H04L47/745H04W28/0236
Inventor 亚诺什·汉玛托斯鲍拉日·彼得·盖罗吉尔维斯特·纳达斯桑德尔·拉茨
Owner TELEFON AB LM ERICSSON (PUBL)