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Method and arrangement for improved handover by muting interfering nodes

A technology that interferes with nodes and mutes noise. It is applied in the field of communication systems and can solve problems such as low cost and difficulty in obtaining robustness.

Active Publication Date: 2008-03-12
TELEFON AB LM ERICSSON (PUBL)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] For the aforementioned reasons, handover is easier and less expensive to implement and uses fewer resources, but it is difficult to obtain the necessary robustness, especially in current state-of-the-art networks

Method used

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  • Method and arrangement for improved handover by muting interfering nodes
  • Method and arrangement for improved handover by muting interfering nodes
  • Method and arrangement for improved handover by muting interfering nodes

Examples

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Embodiment Construction

[0058] For purposes of illustration, the invention will be described below primarily in the context of intra-cell handover of circuit-switched (CS) traffic in a Global System for Mobile Communications (GSM) system. However, use in other types of systems, such as those using Orthogonal Frequency Division Multiplexing (OFDM), or for inter-cell handover, or for use with handover or cell re- Optional use of Packet Switched (PS) communications. For simplicity, all types of cell changes during an active session are hereinafter referred to as "handovers".

[0059] Consider the situation shown in Figure 1. The system comprises a GSM mobile unit MU in communication with a serving base station BS1 in cell A. Meanwhile, the mobile unit MU is moving from the cell A where the serving base station BS1 is located to the cell B where the candidate base station BS2 is located. In the illustrated system, two base stations BS, BS2 are associated with a common base station controller BSC: howe...

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PUM

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Abstract

A method which improves the switching signaling in the telecommunication system includes muting the one or a plurality of main disturbing small region (S1) and harmonizing the muting with the actual switching signaling to temporarily reinforce the wireless surrounding of the user executing the switching signaling.

Description

technical field [0001] The present invention relates generally to communication systems, and more particularly to methods and apparatus for improving handover in such systems. Background technique [0002] The ability to manage user mobility without service interruption is an essential requirement for cellular networks. Particularly susceptible are so-called handover or handoff procedures, in which, in the middle of an active session, a user's communication link is transferred from one (or more) base station(s) to one (or more) other base station(s) . The purpose of the handover procedure is to preserve an ongoing call or session when moving from one cell to another. [0003] The handover procedure can be "soft handover" (wherein multiple base stations of an active set maintain simultaneous connections with a given user and base stations are added or removed from the active set as the radio environment changes) or "hard handover" (wherein A single serving base station tra...

Claims

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Application Information

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IPC IPC(8): H04Q7/38H04W36/08H04W36/20
CPCH04W36/0055H04W72/082H04W36/0058H04W72/541
Inventor S·克莱格
Owner TELEFON AB LM ERICSSON (PUBL)
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