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Routing node and terminal for an FDD communication network and method for operating them

A technology for forwarding nodes and terminal equipment, which is used in radio transmission systems, electrical components, transmission systems, etc.

Inactive Publication Date: 2010-12-15
NOKIA NETWORKS OY +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the following problem arises when using multi-hop forwarding nodes, especially in so-called frequency-division duplex (FDD) operation: Unlike base stations and terminal devices of the network, multi-hop forwarding nodes must be able to operate in both frequency bands To receive and send
However, since it is impossible for a multi-hop forwarding node to simultaneously transmit and receive on the same frequency band, problems may arise when communicating with such a multi-hop forwarding node

Method used

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  • Routing node and terminal for an FDD communication network and method for operating them
  • Routing node and terminal for an FDD communication network and method for operating them

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Embodiment Construction

[0032] FIG. 1 shows a schematic diagram of a communication network 100 . In FIG. 1 , the communication network has a base station 101 , a multi-hop forwarding node 102 and a terminal device, such as a mobile phone 103 . In practice such a communication network has many base stations, forwarding nodes and terminal devices, but these are not shown in Fig. 1 in order to maintain clarity. Also schematically indicate two modes in Fig. 1, namely the first mode 104 and the second mode 105, wherein the first mode 104 is equivalent to the communication between the multi-hop forwarding node 102 and the terminal equipment 103, and the second mode 105 corresponds to the communication between the multi-hop forwarding node 102 and the base station 101 . In each of these communications, two frequencies are used in the FDD network, which is indicated schematically by arrow 106 . In this case, the multi-hop forwarding node 102 receives transmissions from the terminal device at the first freq...

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Abstract

One exemplary aspect of the invention provides a routing node for an FDD communication network, which node has a node receiving apparatus, which is set up in such a manner that it can be used to receive signals from a terminal at a first frequency, and a node transmitting apparatus which is set up in such a manner that it can be used to transmit signals to the terminal at a second frequency. In this case, the routing node is set up in such a manner that it can transmit an indication signal to the terminal, which signal indicates whether the routing node can receive signals at the first frequency at a given point in time.

Description

technical field [0001] The invention relates to a forwarding node and a terminal device of an FDD communication network. The invention also relates to a method for operating forwarding nodes and terminal devices of an FDD communication network. Among other things, the invention relates to a program element and a computer-readable medium. Background technique [0002] For mobile wireless networks such as 3GPP LTE (Long Time Evolution, long-term development) currently awaiting standardization, it is considered to use so-called multi-hop forwarding nodes. Such a multi-hop forwarding node provides the means to achieve the necessary coverage when expanding the system without incurring high costs for a fixed network connection per access node. Furthermore, since an improved signal-to-noise ratio (SNR) can be achieved, the forwarding by means of forwarding nodes leads to an increase in the capacity of the network, ie more connections can be maintained within the network. [0003...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B7/155
CPCH04B7/15557
Inventor R·哈尔夫曼T·豪斯坦A·伊宾W·泽瓦斯
Owner NOKIA NETWORKS OY