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Method for saving energy of network in LTE system

A network and energy-saving state technology, applied in the direction of network topology, energy-saving ICT, energy consumption reduction, etc., can solve the problem that the network cannot restore the energy-saving state to the working state, so as to meet the energy-saving requirements without affecting, ensure network coverage, and meet network capacity requirements Effect

Active Publication Date: 2010-06-16
ZTE CORP
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Problems solved by technology

[0005] In view of this, the main purpose of the present invention is to provide a method for network energy saving under the LTE system, which is used to solve the technical problem that the network cannot recover from the energy saving state to the working state in time according to the network capacity situation in the existing LTE ad hoc network environment , in order to achieve the above object, the technical solution of the present invention is achieved like this:

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  • Method for saving energy of network in LTE system
  • Method for saving energy of network in LTE system
  • Method for saving energy of network in LTE system

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Embodiment Construction

[0036] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0037] The first specific embodiment of the present invention is as follows figure 1 , the network includes base station 1 and base station 2, cell A belongs to base station 1, cell B belongs to base station 2, and cell A and cell B are neighbors. The specific steps are as follows:

[0038] 1. Both cell A and cell B work normally, and there is an X2 connection between base station 1 and base station 2;

[0039] 2. According to the energy saving requirements of cell A, when the energy saving shutdown conditions are met, for example, the number of users in the current cell decreases to a certain extent, cell A enters the energy saving mode (for example, the cell carrier frequency is turned off), and informs the surrounding neighbor...

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Abstract

The invention discloses a method for saving the energy of a network in a long term evolution mobile communication system and solving the technical problem that the network can not recover from an energy-saving state to a working state in time according to network capacity conditions under an environment of the traditional LTE ad hoc network. In the invention, a certain cell in the energy-saving state can notify a neighbour cell that the cell is in the energy-saving state through an expanded X2 interface message; and when the neighbour cell generates congestion or overload, the neighbour cell notifies the cell in the energy-saving state through an newly increased energy-saving recovery indication message or an expanded X2 interface load indication message. By adopting the method, the cell in the energy-saving state can carry out energy-saving recovery operation in time according to the congestion or overload state of the peripheral neighbour cell when the neighbour cell generates the congestion or the overload so as to ensure network coverage and meet the requirements of network capacity, and the technical effects of meeting the energy-saving requirements of operators without influencing network quality are achieved.

Description

technical field [0001] The present invention relates to a wireless cellular mobile communication system, and in particular, to a method for network energy saving in a Long Term Evolution (LTE) mobile communication system. Background technique [0002] In the public standard version 36300-800 of 3GPP, it is described that the LTE (Long Term Evolution, Long Term Evolution) network consists of E-UTRAN (Evolved Universal Terrestrial Radio Access Network, Evolved Universal Terrestrial Radio Access Network) base station eNB (Evolved NodeB) and It is composed of EPC (Evolved Packet Core), and the network is flattened. The EUTRAN includes a set of eNBs connected to the EPC through the S1 interface, and the eNBs can be connected through the X2 interface. S1 and X2 are logical interfaces. One EPC can manage one or more eNBs, one eNB can also be controlled by multiple EPCs, and one eNB can manage one or more cells. [0003] SON (Self-Organized Network, ad hoc network) is a technolog...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W84/10H04W74/02
CPCY02B60/50H04W52/0206Y02D30/70
Inventor 高音费腾
Owner ZTE CORP
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