Resource mapping method and device in downlink control channel

A technology of controlling channels and mapping methods, which is applied in the field of communication, can solve problems such as data sequence incompatibility, and achieve the effect of avoiding caching, reducing storage and delay pressure

Inactive Publication Date: 2011-12-07
ZTE CORP
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Problems solved by technology

[0005] The present invention is proposed for the problem that the order of the subcarriers does not correspond to the data order of the PDCCH, so that all the data of the PDCCH must be buffered in advance. Therefore, the main purpose of the present invention is to provide a kind of resource mapping in the downlink control channel Method and device to solve the above problems

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  • Resource mapping method and device in downlink control channel
  • Resource mapping method and device in downlink control channel
  • Resource mapping method and device in downlink control channel

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Embodiment Construction

[0025] It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0026] figure 1 It is a flowchart of a method for mapping resources in a downlink control channel according to an embodiment of the present invention. Include the following steps:

[0027] Step S102, sort the REGs in the downlink control channel.

[0028] Step S104, using the mapping address of the PCFICH data in the downlink control channel and the mapping address of the PHICH data in the downlink control channel to assign sorted sequence numbers to the PDCCH data in the downlink control channel.

[0029] Step S106, according to the order of the sequence numbers, acquire the data in the downlink control channel corresponding to the sequence number, so as to realize the resource mapping in t...

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Abstract

The invention discloses a method and a device for mapping resource in a downlink control channel. The method comprises the following steps: sorting REG (Resource Element Group) in the downlink control channel; using the mapping address of PCFICH (Physical Control Format Indicator Channel) data in the downlink control channel and the mapping address of PHICH (Physical Hybrid Automatic Repeat Indicator Channel) data in the downlink control channel; endowing a sorted serial number to the PDCCH (Physical Download Control Channel) data in the downlink control channel; and according to the sequence of the serial number, obtaining the data in the downlink control channel corresponding to the serial number so as to map the resource in the downlink control channel. According to the method disclosed by the invention, the PDCCH data is cached, storage and time delay pressure are lowered.

Description

technical field [0001] The present invention relates to the communication field, in particular to a resource mapping method and device in a downlink control channel. Background technique [0002] According to the 3rd Generation Partnership Project (3rd Generation Partnership Project, referred to as 3GPP) long-term evolution (Long-Term Evolution, referred to as LTE) physical layer protocol, the downlink transmission signal adopts Orthogonal Frequency Division Multiplexing, Abbreviated as OFDM) technology, each physical resource message on a symbol is carried by mutually orthogonal signals, and these physical resource messages must be mapped in a resource grid in advance, and the smallest unit of the resource grid is a resource element ( Resource Element, referred to as RE), each RE carries a valid data message. [0003] LTE downlink control channel refers to PBCH, physical control format indicator channel (Physical Control Format Indicator Channel, referred to as PCFICH), ph...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W72/04H04L27/26
CPCH04L5/0007H04L1/1893H04W72/042H04L5/0053H04W72/23
Inventor 韩敏刚马杰
Owner ZTE CORP
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