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Method and apparatus for eliminating interference from closed user groups

A technology that closes user groups and cells, and is used in wireless communication, access restriction, network topology, etc.

Active Publication Date: 2015-08-12
INTERDIGITAL PATENT HLDG INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, said solution results in a large number of cell reselections to other frequencies

Method used

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  • Method and apparatus for eliminating interference from closed user groups
  • Method and apparatus for eliminating interference from closed user groups
  • Method and apparatus for eliminating interference from closed user groups

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Embodiment

[0047] CLAIMS 1. A method for a wireless transmit / receive unit (WTRU) to cancel interference caused by a closed subscriber group cell (CSG), the method comprising:

[0048] The cell with the best level detected is an unsuitable CSG cell.

[0049] 2. According to the method described in embodiment 1, the method also includes:

[0050] Priority to cover frequencies used by the best class non-suitable CSG cells.

[0051] 3. The method according to any one of the preceding embodiments, the method further comprising:

[0052] The WTRU is allowed to reselect to another cell on at least one of another frequency or radio access technology (RAT).

[0053] 4. The method according to any one of the preceding embodiments, wherein the covering further comprises setting an unsuitable CSG cell frequency as a lower priority frequency.

[0054] 5. The method according to any one of the preceding embodiments, wherein the covering further includes setting the frequency priority of the unsuita...

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Abstract

Method and apparatus are disclosed for avoiding interference from transmissions coming from a home Node B, a home evolved Node B (HeNB) or closed subscriber group (CSG) cells when a wireless transmit receive unit (WTRU) is moving through a dense deployment of CSG cells.

Description

[0001] Cross References to Related Applications [0002] This application claims the benefit of U.S. Provisional Application No. 61 / 170,973, filed April 20, 2009, and U.S. Provisional Application No. 61 / 171,721, filed April 22, 2009, which are incorporated herein by reference. application, as fully set forth herein. technical field [0003] This application relates to wireless communications. Background technique [0004] Home Evolved Node B (H(e)NB) and Home Node B (HNB) (collectively HNB) have been introduced in Long Term Evolution (LTE) and Universal Mobile Telecommunications System (UMTS), respectively, as part of an effort to provide Improved spectral efficiency, reduced latency, better utilization of radio resources for faster user experience and richer applications and lower priced services. HNB provides users with access to network services in a very small service area, such as a home or a small office area. Users (such as individuals or organizations) can deploy ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W36/20
CPCH04W48/18H04W84/045H04W36/04H04W48/20H04W36/08H04W36/20H04W48/02H04W36/34H04W36/14H04W36/06
Inventor P·马里内尔D·帕尼R·迪吉罗拉墨J·L·格鲁
Owner INTERDIGITAL PATENT HLDG INC