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Resource unit mapping method and device

A resource unit and mapping module technology, applied in electrical components, wireless communication, etc., can solve the problems of occupying a large number of logic resources, storage resources and slow mapping speed, so as to improve the mapping efficiency, reduce the occupation of system logic resources, and reduce cumbersome operations. Effect

Active Publication Date: 2011-05-25
ZTE CORP
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AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is to provide a method and device for resource unit mapping, which overcomes the defects in the prior art that a large number of logic resources and storage resources are occupied and the mapping speed is slow

Method used

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Examples

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no. 1 example

[0049] The first embodiment of the present invention, such as figure 2 As shown, a resource unit mapping method includes the following specific steps:

[0050] Step s101, classify RS, PS, SS and PBCH as the first type of physical channels and signals, and transmit them to the first port of the dual-port RAM through the first multiplexer, and further, pass the RS and PBCH through the third multiplexer The selector is transmitted to the first multiplexer.

[0051] Step s102, classify PDSCH, PDCCH, PHICH and PCFICH as the second type of physical channels and signals, and transmit them to the second port of the dual-port RAM through the second multiplexer, and further, pass the PDCCH, PHICH and PCFICH through the fourth The multiplexer is transmitted to the second multiplexer.

[0052] It should be noted that there is no strict sequence between step s101 and step s102 and can be performed simultaneously.

[0053] Step s103: Realize the unified setting of downlink resource grid data to z...

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Abstract

The invention discloses a resource unit mapping method and device. The method comprises the following steps: dividing each physical channel and signals into two types, and transmitting to two ports of a dual-port RAM (Random-Access Memory) through a multi-path selector; uniformly setting the downlink resource grid data to be zero by uniformly resetting the dual-port RAM; traversaling all symbols in each subframe in a time domain, and simultaneously mapping the two types of physical channel and signals in the frequency domain of each symbol. The device comprises a multi-path selection module, a control signal providing module and a dual-port mapping module. Compared with the prior art, the resource mapping pattern is calculated for a downlink resource grid without occupying a great deal oflogic resources; and the two-path data can be processed simultaneously through the two ports of the dual-port RAM, thereby the mapping efficiency is further improved.

Description

Technical field [0001] The present invention relates to the field of wireless communication technology, and in particular to a method and device for resource unit mapping. Background technique [0002] The wireless communication system based on OFDMA (Orthogonal Frequency Division Multiple Access) / SC-FDMA (Single Carrier-Frequency Division Multiple Access) mode can flexibly perform resource allocation in the frequency domain. Allocation and scheduling, multiplexing the "data blocks" from multiple channels, that is, mapping them in a shared data channel. [0003] Taking the downlink physical resource mapping of the physical layer of the LTE (Long Term Evolution) system based on OFDMA as an example, the following physical channels and signals of the LTE system are classified according to the downlink physical resource mapping and scheduling mechanism: PDSCH (Physical Downlink Shared Channel, Physical downlink shared channel), PBCH (Physical Broadcast Channel, physical downlink broad...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W72/04
Inventor 徐宏毅左忠卫鲁宜彬
Owner ZTE CORP
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