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Source channel decoding method, device and terminal equipment

A technology of channel decoding and decoding method, applied in the field of decoding method, device and terminal equipment of source channel, can solve the limitation of decoding performance, not fully utilizing the correlation of source channel, and it is difficult to optimize the performance of separation design system, etc. problem, to achieve the effect of enhancing the channel decoding effect, improving the communication quality, and extending the communication distance

Active Publication Date: 2016-08-17
FUJITSU CONNECTED TECH LTD
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  • Description
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Problems solved by technology

[0008] However, in a specific environment, it is difficult to optimize the system performance of the separation design, so that the separation principle is still subject to many constraints and restrictions in many practical application environments.
The separate source channel codec model does not take full advantage of the correlation between source channels. Although the implementation is simple, the decoding performance is limited

Method used

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  • Source channel decoding method, device and terminal equipment
  • Source channel decoding method, device and terminal equipment
  • Source channel decoding method, device and terminal equipment

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Embodiment 1

[0036] An embodiment of the present invention provides a method for decoding a source channel, figure 1 is a schematic flowchart of a decoding method in an embodiment of the present invention. Such as figure 1 As shown, the decoding method includes:

[0037] Step 101, receiving data transmitted through the channel; wherein the data is encoded at a low rate when the channel condition is bad;

[0038] Step 102, using the statistical information of the information source to determine the prior probability of channel decoding, and performing information source-channel joint decoding on the data.

[0039] In this embodiment, the decoding method can be applied to a terminal device, such as a cordless phone. However, the present invention is not limited thereto, and specific application scenarios may be determined according to actual conditions.

[0040] In this embodiment, the current channel environment can be obtained from the channel feedback data. When the channel condition ...

Embodiment 2

[0090] An embodiment of the present invention provides a source channel decoding device, and the same content as that in Embodiment 1 will not be repeated here.

[0091] Figure 7 is a schematic diagram of the structure of a decoding device according to an embodiment of the present invention. Such as Figure 7 As shown, the decoding device 700 includes: a receiving unit 701 and a decoding unit 702; for other parts of the decoding device 700, reference may be made to the prior art, which will not be repeated here.

[0092] Among them, the receiving unit 701 receives the data transmitted through the channel; wherein the data is encoded at a low rate when the channel condition is not good; the decoding unit 702 uses the statistical information of the source to determine the prior probability of channel decoding, and the data Perform source channel joint decoding.

[0093] Figure 8 It is a schematic diagram of the structure of the decoding unit of the embodiment of the presen...

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Abstract

Embodiments of the present invention provide a source channel decoding method, device and terminal equipment. The decoding method includes: receiving data transmitted through a channel; wherein the data is encoded at a low rate when the channel condition is bad; using the statistical information of the information source to determine the prior probability of channel decoding, and performing Source channel joint decoding. Through the embodiments of the present invention, the channel decoding effect can be enhanced, the communication distance can be extended under the same channel condition, or the communication quality can be improved under the same distance condition.

Description

technical field [0001] The present invention relates to the communication field, in particular to a decoding method, device and terminal equipment of an information source channel. Background technique [0002] In the communication system, the ideal goal of personal communication is to ensure that anyone can communicate in any way anytime and anywhere. To achieve this goal, it is necessary to combine the wired fixed network with the wireless mobile network, use the wired fixed network with extensive geographical coverage as the basic transmission system, and introduce the functions of location registration, handover, roaming and other functions of the mobile network to form a network. A super-capacity, economical and flexible personal communication network. [0003] Cordless telephones are developed on the basis of ordinary wired telephones. The handle of the ordinary wired telephone is equipped with a transmitter and a receiver, which are connected with the landline with ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L1/00
Inventor 张翼周华吴建明高迪赵晓群
Owner FUJITSU CONNECTED TECH LTD
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