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Method of configuring physical resources for PBCH based on DM-RS demodulation

A DM-RS and physical resource block technology, applied in the field of DM-RS-based demodulation, can solve the problem of unavailable network assistance

Active Publication Date: 2014-10-15
ALCATEL LUCENT SHANGHAI BELL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Also, for the standalone new carrier type, network assistance from the macro cell for initial access is also not available

Method used

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  • Method of configuring physical resources for PBCH based on DM-RS demodulation
  • Method of configuring physical resources for PBCH based on DM-RS demodulation
  • Method of configuring physical resources for PBCH based on DM-RS demodulation

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Embodiment Construction

[0036] figure 1 It shows a manner of allocating physical resources for PBCH on physical resource block pairs in a communication environment based on a new independent carrier type according to an embodiment of the present invention. figure 2 It shows a manner of allocating resource elements used for PBCH on physical resource block pairs in a communication environment based on a new independent carrier type according to another embodiment of the present invention.

[0037] Here, PBCH transmission will still use the central 6 physical resource block pairs. exist figure 1 and figure 2 Proposed two ways of configuring resource elements of the new PBCH using different OFDM symbols in the subframe. However, the period of the PBCH is still the same as that of the traditional PBCH, and is mapped to the first subframe of each radio frame, and is repeated every 40 ms. In addition, the same as the traditional PBCH, in the frequency domain, the central 72 subcarriers (6 physical res...

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Abstract

The invention provides a method of configuring physical resources for a PBCH based on DM-RS demodulation in a communication environment based on an independent new carrier type, and a method for performing DM-RS-based demodulation on the PBCH and a common search space. According to the optimal embodiment of the invention, the PBCH at least comprises common search space configuration information which is used for assisting user equipment to confirm intervals of physical resource block pairs used by common search space of an independent new carrier type community in which the user equipment is located. Besides, on the physical resource block pairs, resource elements used by the PBCH are distributed on OFDM symbols in which the DM-RS is located, or the resource elements used by the PBCH are distributed on the OFDM symbols in which the DM-RS is located or on the OFDM symbols adjacent to the OFDM symbols in which the DM-RS is located. The scheme that DM-RS-based demodulation is provided for the independent new carrier type is realized, and support is provided for acquisition of common search space at initial access of the user equipment.

Description

technical field [0001] The present invention relates to mobile communication technology, in particular to a method for configuring physical resources for PBCH demodulated based on DM-RS in a communication environment based on an independent new carrier type, a method for PBCH and public search space based on DM-RS demodulation method of demodulation. Background technique [0002] In Release 11 and future Release 12 of LTE-Advanced, a new carrier type (New Carrier Type, NCT) is introduced to improve spectrum efficiency, heterogeneous network support and power saving without restricting backward compatibility. For newly designed new carrier types, this means that some traditional channels (such as common reference signal CRS, physical broadcast channel PBCH, synchronization channel, etc.) can be removed or partially removed to achieve more effective frequency efficiency. Currently, there are two issues for this proposal in RAN1, one is a non-standalone NCT, which has overlapp...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L27/26H04W72/04
Inventor 蒋琦刘铮
Owner ALCATEL LUCENT SHANGHAI BELL CO LTD