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Method and radio base station for effective spectrum utilization

A radio base station, spectrum technology, used in wireless communications, electrical components, access restrictions, etc.

Inactive Publication Date: 2009-11-11
TELEFON AB LM ERICSSON (PUBL)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] The problem with traditional cellular deployments as described above is that traditional cellular deployments only provide a rigid framework within which operators can apply their cellular networks

Method used

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  • Method and radio base station for effective spectrum utilization
  • Method and radio base station for effective spectrum utilization
  • Method and radio base station for effective spectrum utilization

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Embodiment approach

[0086] Although the invention is primarily intended to be implemented in LTE or other systems based on OFDM radio access, the invention can also be implemented in systems based on other radio access technologies such as CDMA.

[0087] The second network sharing the frequency zone 2 may be another cellular network based on another radio access technology or based on the same radio access technology as the network comprising the first cell C1.

[0088] The radio network sharing frequency zone 2 (FZ2) can also be non-cellular, eg a radio broadcast network based on DVB or DVB-H technology. Broadcast networks may have downlink transmissions scheduled well in advance of transmissions. available from the GSM system via a similar Figure 13 The link in link 21 notifies the first network of the broadcast schedule. The broadcast network is also able to broadcast at a predefined time a scheduled transmission that will take place in the future, usually a TV program planned for a differe...

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PUM

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Abstract

The present invention relates to radio communication in a cellular network and in particular to the sharing of a frequency spectrum with another network. The object is to enable robust communication in the shared band. The solution is to allocate a third band for communication in a cell. A L1 / L2 control channel may be transmitted in the third band only, whereas data can be transmitted in the shared band. The L1 / L2 control channel support the data communication in the shared band. The invention relates to a method and a radio base station.

Description

technical field [0001] The present invention relates to cellular radio communications and in particular to two methods of efficient spectrum utilization. The invention also relates to a radio base station adapted to perform one of these two methods. Background technique [0002] In traditional cellular network designs, a range of contiguous radio frequencies (called carriers) are allocated to a single radio network. use figure 1 This is depicted on the frequency axis in , where carrier 1 from frequency f1 to frequency f2 is allocated to cellular network 1 and carrier 2 from frequency f3 to frequency f4 is allocated to cellular network 2 . Between these two carriers, a guard band is usually included in order to reduce spurious emissions between the cellular networks. These spurious emissions are seen by the network into which they are transmitted as interference that may degrade system performance. [0003] In cellular network design, critical information, such as control...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W48/12
CPCH04W48/12H04W16/16H04W16/14
Inventor 埃里克·韦斯特伯格安德里亚·奥尔松斯特凡·帕克瓦尔托比亚斯·廷德费尔特汉内斯·埃克斯特伦
Owner TELEFON AB LM ERICSSON (PUBL)