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A bit information processing method, device and system

A technology of an information processing device and an information processing method, which is applied in the communication field and can solve problems such as waste of subcarrier capacity resources

Active Publication Date: 2017-11-17
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This interaction method can reduce the amount of data transmitted when exchanging bit tables to a certain extent, but the actual number of bits that can be carried by each subcarrier in a subcarrier group may be different. According to the above interaction method, the lowest bit needs to be selected. The number is used as the number of bits carried by each subcarrier in the subcarrier group, so that the subcarriers that can carry more bits need to follow the low principle, resulting in a waste of subcarrier capacity resources

Method used

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  • A bit information processing method, device and system
  • A bit information processing method, device and system
  • A bit information processing method, device and system

Examples

Experimental program
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Effect test

Embodiment 1

[0054] Embodiment 1 of the present invention provides a bit information processing method, such as image 3 shown, including:

[0055] S101: Determine respectively the number of bits carried by each subcarrier cluster in the used frequency spectrum.

[0056] Specifically, in the OFDM system, when the receiving-end network device and the sending-end network device perform information interaction, in the process of allocating different information bits to each subcarrier in the commonly used frequency spectrum, the bit allocation may be performed in units of each subcarrier, It is also possible to allocate several subcarriers as a minimum allocation unit, the subcarriers in each minimum allocation unit carry the same number of bits, and each minimum allocation unit has the same number of subcarriers, so in the embodiment of the present invention In the following, bit allocation is performed in units of subcarrier clusters, where a subcarrier cluster includes at least one subcar...

Embodiment 2

[0065] Embodiment 2 of the present invention will describe the bit information interaction process involved in Embodiment 1 in detail in combination with practical applications.

[0066] When determining the number of bits that each subcarrier cluster can carry in S101, it can be calculated according to the actual network environment. For example, in the case of point-to-point network transmission, the number of bits that each subcarrier cluster can carry can be determined according to the signal-to-noise ratio (SNR) of the received signal. For example, according to the signal-to-noise ratio (SNR) of the received signal and Shannon's theorem, the network equipment at the receiving end or the network equipment at the transmitting end determine the number of bits that each subcarrier cluster in the frequency spectrum used by the system can carry. In the case of point-to-multipoint network transmission, the network device that is currently processing bit information can determine ...

Embodiment 3

[0080] Based on the bit information processing method involved in the above embodiments, Embodiment 3 of the present invention provides a bit information processing device, such as Figure 10 As shown, the bit information processing device includes: a determination unit 10, a grouping unit 11 and a sending unit 12, wherein:

[0081] The determination unit 10 is configured to respectively determine the number of bits carried by each subcarrier cluster in the spectrum used, wherein the subcarrier cluster contains at least one subcarrier, and send the determined number of bits carried by each subcarrier cluster to the grouping unit 11;

[0082] The grouping unit 11 is configured to receive the number of bits carried by each subcarrier cluster sent by the determination unit 10, and use the subcarrier clusters in the frequency spectrum according to the subcarrier cluster index of each subcarrier cluster and the determined number of bits carried by each subcarrier cluster. Carrier c...

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PUM

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Abstract

The embodiment of the present invention discloses a bit information processing method, device and system, so as to reduce the amount of transmitted data and avoid the waste of sub-carrier capacity resources when performing bit table interaction. In the embodiment of the present invention, the number of bits carried by each subcarrier cluster in the frequency spectrum is respectively determined; according to the subcarrier cluster index of each subcarrier cluster and the determined number of bits carried by each subcarrier cluster, the subcarrier clusters in the frequency spectrum are used. Grouping to obtain several subcarrier groups, where the subcarrier cluster indexes of each subcarrier cluster in each subcarrier group are continuous and carry the same number of bits; for each subcarrier group obtained, the bit information carried by it is sent to the peer network device , to complete the interaction of the bit table. Through the present invention, the amount of data transmission can be reduced, and resource waste can be avoided.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to a bit information processing method, device and system. Background technique [0002] In multi-carrier communication systems such as OFDM (Orthogonal Frequency Division Multiplexing, Orthogonal Frequency Division Multiplexing), in order to simplify the realization of the system, the same modulation mode is used on each sub-channel or carrier, but if there are individual poor sub-channels or carriers , it will lead to deterioration of system bit error performance, so how to reasonably allocate the information carrying capacity of each sub-channel or carrier according to the channel conditions of each sub-channel or carrier becomes a key issue. [0003] Adaptive technology is applied in the OFDM system, and different information bits are allocated to each subcarrier in each OFDM symbol period according to the instantaneous characteristics of the channel, and the corr...

Claims

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Application Information

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IPC IPC(8): H04L27/26
CPCH04L5/0094H04L5/0046
Inventor 孙方林
Owner HUAWEI TECH CO LTD