Frequency band resource allocation instruction method in frequency division multiple access sending mode

A resource allocation and transmission method technology, which is applied in the direction of multiple use of transmission paths, transmission path separation devices, digital transmission systems, etc., can solve the problems of loss flexibility, resource waste, and large scheduling units, so as to improve scheduling accuracy, The effect of improving flexibility and saving signaling overhead

Inactive Publication Date: 2016-11-16
ZTE WAVETONE SCI & TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The first method has a large scheduling unit, which inevitably leads to waste of resources for terminals with a small amount of information
Although the scheduling accuracy of the second method reaches 1RB, it loses a certain degree of allocation flexibility.

Method used

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  • Frequency band resource allocation instruction method in frequency division multiple access sending mode
  • Frequency band resource allocation instruction method in frequency division multiple access sending mode
  • Frequency band resource allocation instruction method in frequency division multiple access sending mode

Examples

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Embodiment

[0027] There are a total of 30 RBs under the system bandwidth, and there are many options for sub-channel division. For example, it can be divided into 5 sub-channels, each sub-channel contains 6 RBs, or 6 sub-channels, each sub-channel contains 5 RBs; 3 sub-channels, each sub-channel contains 10 RBs. RBs or 10 subchannels each containing 3 RBs, etc. To divide several sub-channels specifically, conditions such as the total number of RBs, the number of sub-carriers contained in RBs, and signaling overhead need to be considered comprehensively. Here, the division of 4 sub-channels includes 8 RBs, and the last sub-channel includes 6 RBs as an example for illustration. The first 4 bits of the resource allocation signaling are "sub-channel selection indication bitmap", and the last 8 bits are "sub-channel RB selection indication bitmap", 12 bits in total. If each bit of the resource allocation signaling indicates the selection of one RB, 30 bits of signaling overhead are required,...

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Abstract

The invention discloses a frequency band resource allocation instruction method in a frequency division multiple access sending mode. The method comprises the steps of carrying out sub-channel division on transmission bandwidth, and instructing a method for scheduled frequency band location through two parts of bitmap instruction fields; generating a resource allocation instruction signal for each terminal after a sending node determines frequency band locations allocated to each piece of terminal data; and determining the frequency band locations for bearing the data by the terminal through reading of the resource allocation instruction signals, and obtaining data to carry out follow-up related operations. According to the method, all bits of the resource allocation signals are used for bitmap instructions, the resource allocation flexibility is greatly improved, the scheduling precision is improved, the signal overhead is reduced, the signal structure is simple, and the calculation complexity is low.

Description

technical field [0001] The invention relates to a frequency band resource allocation indication method in a frequency division multiple access transmission mode, and belongs to the technical field of wireless communication. Background technique [0002] In the Orthogonal Frequency Division Multiple Access (OFDMA) transmission mode, the system needs to allocate subcarriers to bear and transmit data of different users at the same time, so as to realize the goal of simultaneously serving multiple scheduled users. In order for the terminal to accurately receive the data delivered by the sending node, the sending node needs to notify the terminal in advance of the frequency band location of its data. The terminal obtains the information by interpreting the resource allocation signaling in the control information delivered by the sending node. [0003] The design of resource allocation signaling needs to be able to indicate continuous or discontinuous allocation of data in the fr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L5/00H04W72/04
CPCH04L5/0007H04L5/0094H04W72/20
Inventor 何世文张国玉王海明洪伟张军江华
Owner ZTE WAVETONE SCI & TECH
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