Supercharge Your Innovation With Domain-Expert AI Agents!

Transfer of algorithm parameters during handover of mobile station between radio network subsystems

A wireless network and subsystem technology, which is applied in the field of algorithm parameter transmission during handover of a mobile station between wireless network subsystems to achieve the effect of saving resources and facilitating real-time connection

Inactive Publication Date: 2003-03-12
NOKIA TECHNOLOGLES OY
View PDF0 Cites 26 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

2) Signaling messaging does not use user plane protocol, because signaling messaging has an independent protocol, so the differen

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Transfer of algorithm parameters during handover of mobile station between radio network subsystems
  • Transfer of algorithm parameters during handover of mobile station between radio network subsystems
  • Transfer of algorithm parameters during handover of mobile station between radio network subsystems

Examples

Experimental program
Comparison scheme
Effect test

Example

Example 1

Fig. 3 shows an example of negotiation of header compression (HC) parameters. When the mobile station uses the UE CAPAPBILITY INFORMATION (UE capability information) message to connect to the network RRC, and inform the SRNC about the header compression (HC) method and its parameters that the UE can use. This information is left to the network to update and take care of.

After comparing the network's own and these receiving parameters, the network makes a decision on the HC method to be used, taking into account the needs of QoS. Therefore, it is possible to choose the most probable HC method (in other words, the method of the first configuration can be selected as the real-time service optimization method or not according to QoS requirements). After the network makes its decision to configure its compressor, it uses the RRC message RADIO BEARER SETUP (Figure 4) or RADIO BEARER RECONFIGURATION (Figure 5) to configure the algorithm of the compressor in the UE. Related par...

Example

Example 2

In addition, when the mobile station uses the UE CAPAPBILITY INFORMATION message of Figure 3 to connect to the network RRC, it notifies SRNC_RNC about the required header compression (HC) method and related parameters that the UE can use. This information is left to the network for updates and care.

The network selects the methods that can be supported according to the methods it supports and the methods supported by the UE. After that, the network can simultaneously send the parameters of all supported methods to the UE by using a message. This means that both the network and the UE know which methods can be supported. In this case, OPT tables representing different packet types of different methods are similarly generated at both ends. This information transmission can be performed by using the RRC message RADIO BEARER SETUP (radio bearer setup) as shown in FIG. 4 or RADIO BEARER RECONFIGURATION (radio bearer reconfiguration) as shown in FIG. 5. At the same time, noti...

Example

Example 3:

It is also possible that the network informs the UE about the methods it supports when connecting to the network and in the case of SRNS relocation after the SRNC_relocation_Commit message. In this case, the UE uses some signaling based on RADIO BEARER SETUP (Figure 4) and RADIO BEARER RECONFIGURATION (Figure 5) to start sending compressor parameters and follow example 1 or 2. Start the compressor generation process, the difference is that the UE sends configuration messages and the network receives these messages.

The current (prior art) solution in GPRS is to perform XID negotiation again when the location of the SGSN changes (handover between SGSNs). This negotiation is needed because the SNDCP and LLC protocols are in the SGSN and the new SGSN does not know the old XID parameters (and they may not be applicable). Perform XID negotiation for some (most but not all) LLC and SNDCP parameters, such as header compression parameters.

However, this method is not very sui...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

Instead of renegotiating parameters relating to an optimization algorithm previously negotiated between a mobile station and a target radio network subsystem during connection handover of the mobile station from a source radio network subsystem, prestored parameters are transferred instead between the source radio network subsystem and the target radio network subsystem either directly over an existing Iur interface or via a core network over an Iu interface.

Description

technical field Second and third generation cellular packet systems Background of the invention As shown in Figure 13, in the Global System for Mobile Telecommunications / General Packet Radio Service (GSM / GPRS) network architecture, there are various architectural elements related to known data protocol stacks, including Mobile Station (MS), including Base Transceiver Station (BTS) and Base Station Subsystem (BSS) of Base Station Controller (BSC), Serving GPRS Support Node (SGSN) and Gateway GPRS Support Node (GGSN). MS and SGSN share the Subnetwork Dependent Convergence Protocol (SNDCP) layer and peer Logical Link Control (LLC) in the user plane. A typical GPRS negotiation required between a mobile station and a peer entity in some fixed network equipment is an Exchange Identity or XID negotiation, where so called L3CE (Layer 3 Compatibility Entity) parameters are agreed. The UMTS packet network architecture is very similar to GPRS, except that some units and interfaces ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): H04L12/56H04W36/12
CPCH04W36/12
Inventor J·舒梅基H·卡利奥K·阿马瓦尔拉J·卡利奥库于A·托鲁宁
Owner NOKIA TECHNOLOGLES OY
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com