Radio network control

Abstract

A first session is established for a first mobile access terminal (AT) on a first radio network controller (RNC) via a first radio node (RN). A first traffic channel is established between the first mobile access terminal (AT) and the first radio network controller (RNC). A first plurality of packets are sent and received over the first traffic channel. The first plurality of packets travel between a first radio node (RN) and the first radio network controller (RNC) without passing through a second radio network controller (RNC). The first traffic channel is maintained as the first access terminal moves from a coverage area of the first radio node (AT) to a coverage area of a second radio node (RN). A second plurality of packets travel between the second radio node (RN) and the first radio network controller (RNC) without passing through another radio network controller. In a radio access network, multiple radio network controllers are connected to several radio nodes using a network.

Description

technical field [0001] The present invention relates to wireless network control. Background technique [0002] High Data Rate (HDR) is an emerging mobile wireless access technology that enables anywhere, anytime access to personal broadband Internet services (see P. Bender, et al., "CDMA / HDR: A Bandwidth-Efficient High-Speed Wireless Data Service for Nomadic Users", IEEE Communications Magazine, July 2000, and 3GPP2, "Draft Baseline Text for 1xEV-DO," August 21, 2000 (P. Bender et al. "CDMA (Code Division Multiple Access) / HDR: For Mobile Bandwidth Efficient High-Speed ​​Wireless Data Service for Users", IEEE (Institute of Electrical and Electronics Engineers) Communications Magazine, July 2000, 3GPP2, "Draft Reference Text for 1xEV-DO", August 21, 2000)). HDR, developed by Qualcomm, is an air interface optimized for IP packet data services that can use only (1X)1.25MHz of spectrum to provide shared forward speed up to 2.46Mbit / s per sector Link transfer rate. With CDMA20...

AI Technical Summary

Problems solved by technology

Without such session transfers, each handover between RNCs would result in new and long-running session establishments, occupying previous over-the-air resources, and causing delays

When the RNC's coverage area is small, dormant handoffs occur frequently, resulting in overuse of airlink resources (for new UATI allocations), additional processing by the RNC to implement session transfers, and additional processing by the RNC and PDSN to reallocate A10 connections

Images