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Interference Mitigation on Uplink Control Channels in Heterogeneous Networks

A technology of link control channel and channel quality indication, applied in the direction of wireless communication, electrical components, etc., to achieve the effects of robust transmission/reception, improved efficiency, and effective resource allocation

Inactive Publication Date: 2016-03-02
TELEFON AB LM ERICSSON (PUBL)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In this way, the uplink interference to the control channel of the victim HeNB is reduced, but at the cost of utilizing the full uplink bandwidth

Method used

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  • Interference Mitigation on Uplink Control Channels in Heterogeneous Networks
  • Interference Mitigation on Uplink Control Channels in Heterogeneous Networks
  • Interference Mitigation on Uplink Control Channels in Heterogeneous Networks

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Embodiment Construction

[0041] Throughout the following description, similar reference numerals have been used, where applicable, to designate similar elements, parts, items or features.

[0042] figure 1 A schematic overview of an exemplary radio communication system 100 in which the present solution can be implemented is shown. The radio communication system 100 includes a radio network node 110 , a network node 140 , a further radio network node 150 , a communication device 160 and a further communication device 170 . The two communication devices 160 , 170 are each managed by the radio network node and the further radio network node 110 , 150 . Interface X2 is established between radio network node 110 and further radio network node 150 . Interface S1 is established between radio network node 110 and network node 140 . Other interfaces may also be used to transfer information between the radio network nodes and the network node. Furthermore, the radio network node comprises an Uplink Control ...

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Abstract

An uplink control channel resource management module (120, 130) called "UMM" is provided and used in the UMM to assign an uplink control channel resource called "UCCHR" to the radio network node 110 for use in the radio network node A method in an uplink control channel between (110) and a communication device (160). The UMM obtains (210) resource allocation information called "RAI" and generates (220) a resource allocation command called "RAC" based on the RAI. The RAC indicates the UCCHR to be used by the radio network node. Furthermore, the UMM provides (230) the RAC to the radio network node (110). Related methods and nodes enabling UMM to assign UCCHR are also provided.

Description

technical field [0001] The invention relates to methods and arrangements in a radio communication system. In particular, the present invention relates to a method for assigning uplink control channel resources and an uplink control channel management module and related methods and nodes in a radio communication system. Background technique [0002] In 3GPP (3rd Generation Partnership Project) there has been a lot of activity during the past year related to heterogeneous networks, so-called hetnets. Hetnet deployments may be characterized in that such systems contain different access points with different downlink output power levels. In addition, a heterogeneous network is composed of various access points such as macro eNBs, micro / pico eNBs, relays, femto / home eNBs, and the like. [0003] It is generally assumed that a micro / pico eNB (or base station) has the same functionality as a macro eNB, but that the micro / pico eNB uses lower output power than the macro eNB. Relays...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W72/12
CPCH04W72/20
Inventor P.莫贝格J.贝格斯特伦M.施塔廷G.米尔德
Owner TELEFON AB LM ERICSSON (PUBL)
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