Resource mapping method and apparatus thereof

A technology of resource mapping and resource blocks, which is applied to devices dedicated to transmitters, devices dedicated to receivers, transmission modification based on link quality, etc., can solve problems such as loss of accuracy and affect blind detection at the receiving end, and achieve Conducive to the effect of blind inspection

Active Publication Date: 2018-10-09
HUAWEI TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] In fact, when the fixed-point bit width is small, the above-mentioned power balance method has computational overhead, and the accuracy will be lost during the power balance calculation process, which will affect the blind detection at the receiving end.

Method used

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  • Resource mapping method and apparatus thereof
  • Resource mapping method and apparatus thereof
  • Resource mapping method and apparatus thereof

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Experimental program
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Embodiment Construction

[0061] The specific embodiments of the present application will be further described in detail below in conjunction with the accompanying drawings.

[0062] image 3 It is the basic process of wireless communication. At the sending end, the source is sent out after sequentially undergoing source coding, channel coding, rate matching and modulation mapping. At the receiving end, the destination is output through demapping and demodulation, derate matching, channel decoding and source decoding in sequence. Polar codes can be used for channel coding and decoding. Since the code length of the original Polar code (mother code) is an integer power of 2, it is necessary to implement a Polar code with any code length through rate matching in practical applications. The sending end performs rate matching after channel encoding to achieve any target code length, and at the receiving end, de-rate matching is performed before channel decoding. It should be noted that the basic process o...

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Abstract

The application discloses a resource mapping method and an apparatus thereof. The method includes steps: a network device performs nested structure mapping on a modulation symbol set to obtain a firstresource block, wherein the modulation symbol set carries downlink control information corresponding to each user equipment in at least one piece of user equipment, and modulation symbols, loaded onthe first resource block, of the same user equipment are continuous; the network device reconstructs the first resource block to obtain a second resource block, wherein modulation symbols, loaded on the second resource block, of the same user equipment are non-continuous; and the network device maps the second resource block to a time frequency resource so that the user equipment obtains the modulation symbol set according to the time frequency resource. By employing the method and the apparatus thereof, a receiving terminal can find symbol pairs with similar signal to noise ratios at candidate positions of the same aggregation level without calculation, and the blind detection of the receiving terminal is facilitated.

Description

technical field [0001] The present application relates to the technical field of communications, and in particular to a resource mapping method and device thereof. Background technique [0002] Currently, in wireless communication protocols, the encoding method of downlink control information (English: Downlink Control Information, abbreviated: DCI) of a new air interface (English: New Radio, abbreviated: NR) has been determined to be a polar (Polar) code. A nested structure (English: nested structure) is proposed in the Physical Downlink Control Channel (English: Physical Downlink Control Channel, abbreviated: PDCCH) of NR, which has the same resource element (English: Resource Element, abbreviated: RE) that will appear in The characteristics in different aggregation levels (English: Aggregation Level, AL for short) and the number of candidate positions (English: candidate) included in different aggregation levels are different. [0003] At present, a PDCCH blind detection...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L1/00
CPCH04L1/0038H04L5/0037H04L5/0042H04L5/0053H04L5/0094H04L1/0013H04L1/0033
Inventor 罗禾佳皇甫幼睿陈莹戴胜辰李榕
Owner HUAWEI TECH CO LTD
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