Method, system and device for broadcasting system information

A system information and capability information technology, applied in the fields of systems and devices, and system information broadcasting methods, can solve the problems of LTE and LTE-A terminals being unable to read broadcast messages correctly, so as to reduce the large overhead of physical resources and ensure forwarding and the effect of backward compatibility

Active Publication Date: 2010-03-31
DATANG MOBILE COMM EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to at least solve one of the above-mentioned technical defects, especially solve the technical defects that LTE and LTE-A terminals in the prior art cannot correctly read broadcast messages

Method used

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  • Method, system and device for broadcasting system information
  • Method, system and device for broadcasting system information
  • Method, system and device for broadcasting system information

Examples

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Embodiment Construction

[0036] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

[0037] In an embodiment of the present invention, by dividing physical resources, each carrier bears the BCH channel and the SCH channel of the LTE-A system, so that for the carriers visible to both the LTE system and the LTE-A system terminals, It not only bears the BCH channel and SCH channel of the LTE system, but also bears the BCH channel and SCH channel of the LTE-A system, so that LTE and LTE-A terminals can correctly read broadcast messages.

[0038] The BCH carries a variety of system information necessary for the terminals in t...

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PUM

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Abstract

The invention provides a method for broadcasting system information, which comprises the following steps: a base station transmits a broadcast message within the frequency band of a long-term evolution broadband system (LTE-A), wherein at least one carrier wave within the LTE-A frequency band is visible for both long-term evolution (LTE) terminals and LTE-A terminals, a synchronous channel (SCH) of the LTE-A system and an SCH of the LTE system are configured in the carrier wave, and the carrier wave also carries the system information of the LTE-A system and the LTE system; and the terminal carries out down time-frequency synchronization with the base station according to own capacity information and acquires the corresponding system information. By utilizing the method for broadcasting system information in the invention, both the LTE terminals and the LTE-A terminals can correctly read the broadcast message, thereby ensuring the forward compatibility and the backward compatibility.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to a method, system and device for broadcasting system information. Background technique [0002] In the long-term evolution broadband mobile communication system, such as the LTE-Advanced system (referred to as the LTE-A system in this paper), it is necessary to provide a higher peak rate through a larger transmission bandwidth to meet the needs of users. The current research tends to A method to provide greater transmission bandwidth is to aggregate multiple contiguous or non-contiguous existing frequency bands. Each of the contiguous or non-contiguous frequency bands aggregated together is called a carrier, such as figure 1 As shown, it is a schematic diagram of carrier aggregation in the prior art. In this figure, the available frequency bands of the LTE-A system are aggregated from four frequency bands (carriers), and carriers 1 to 3 are visible to LTE terminals...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W48/10H04W56/00
Inventor 潘学明索士强丁昱肖国军
Owner DATANG MOBILE COMM EQUIP CO LTD
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