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Communication resource management

A communication resource and resource manager technology, applied in the field of resource utilization adjustment schemes, can solve problems such as small overhead costs

Active Publication Date: 2012-12-12
TELEFON AB LM ERICSSON (PUBL)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The cyclic extension is usually discarded in the receiver terminal, so it is associated with an overhead cost that should be kept as small as possible

Method used

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  • Communication resource management
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Embodiment Construction

[0041]Throughout the drawings, the same reference numerals will be used for corresponding or similar elements.

[0042] The present invention relates to communication resource management in radio-based communication systems and discloses local dynamic adjustment of semi-persistent scheduling schemes in such systems.

[0043] figure 1 A part of a communication system or network 1 according to the invention is shown schematically. The communication system 1 comprises a plurality of transmitter nodes or base stations 10 , 15 communicating with connected user terminals, represented as mobile terminals 20 , 25 in the figure. According to the invention, the transmitter node 10, 15 may communicate to the user terminal 20, 25 at least two different types of information or data defined in terms of the manner in which data is sent to the user terminal 20,25.

[0044] A first type of information is so-called multi-node association information, which is sent by at least two transmitter ...

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Abstract

The invention involves management of communication resources (40, 45) in a network (1) utilizing multi-node-adapted resources (40) for transmission of multi-node-associated information and single-node-adapted resources (45) for transmission of single-node-associated information. A default resource allocation (60) specifying, for all transmitter nodes (10, 15) in the network (1), when the respective resource type is available for usage is defined. A subset (10) of the nodes in the network (1) estimates an expected amount of multi and / or single-node-associated information to be transmitted by the node subset (10). The default resource allocation (60) is then dynamically adjusted, for the node subset (10), based on the estimated expected information amount, implying that the physical resources (40, 45) defined by the default time structure (60) are dynamically shared in the frequency domain. According to the adjusted default resource allocation (65), a multi / single-node-adapted resource (40) will be allocated for transmission, by the node subset (10), of single / multi-node-associated information.

Description

technical field [0001] The present invention relates generally to communication resource management in radio communication systems, and more particularly to regulation schemes for defining resource utilization in such systems. Background technique [0002] Orthogonal Frequency Division Multiplexing (OFDM) is considered as a leading candidate technology for fourth generation and super third generation (S3G) radio access systems. This selection is based in part on efficient utilization of available bandwidth compared to other multiplexing techniques. In OFDM, the available bandwidth is subdivided into many narrow bandwidth subcarriers. These subcarriers are orthogonal to each other, allowing them to be packed closer together and providing greater spectral efficiency than standard frequency division multiplexing (FDM). Each user may be assigned a number of subcarriers in which to transmit its data, allowing multiple data symbols to be transmitted in parallel. In other words,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W16/10H04L12/56G06F15/173H04L12/54H04W4/06H04W16/02H04W16/12H04W72/04
CPCH04L47/12H04H20/42H04L47/14H04L12/5695H04W16/02H04H20/67H04L47/824H04W4/06H04W28/16H04W72/04H04W16/10H04W16/12H04L47/806H04L47/15H04L47/762H04L5/023H04L47/83H04L47/70H04W8/04
Inventor P·弗伦格
Owner TELEFON AB LM ERICSSON (PUBL)