CRC (Cyclic Redundancy Check) control method and equipment

A control method and controller technology, applied in the communication field, can solve problems such as waste of bandwidth resources, achieve the effects of avoiding bandwidth occupation, saving communication and processing resources, and ensuring service reliability

Inactive Publication Date: 2011-10-19
DATANG MOBILE COMM EQUIP CO LTD
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0009] Embodiments of the present invention provide a CRC control method and device to solve the problem of wasting bandwidth resources caused by having to carry CRC fields in the prior art

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  • CRC (Cyclic Redundancy Check) control method and equipment
  • CRC (Cyclic Redundancy Check) control method and equipment
  • CRC (Cyclic Redundancy Check) control method and equipment

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Embodiment Construction

[0038] As mentioned in the background art, the downlink service in the HSDPA and HSPA+ system is a high-speed service, and the processing load of the sender and the receiver of the FP protocol unit is heavy. Moreover, the Iub port (interface between RNC and Node B in TD-SCDMA) is wired transmission, and the reliability of transmission is very high. It is not necessary to carry CRC16 check in every FP frame.

[0039] In 3GPP 25.435 Ra10 and its previous protocols, the payload CRC16 field in the downlink FP frame of HSDPA and HSPA+ is mandatory and cannot be dynamically controlled. Even if the transmission of the Iub port is very stable, it still needs to carry the CRC16 field, which wastes the transmission bandwidth of the Iub port and increases the load of the sender-receiver to check and calculate the CRC16 field, resulting in Iub port bandwidth and sender-receiver Waste of processing power.

[0040] The present invention is aimed at the above-mentioned problem, in conjuncti...

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Abstract

The embodiment of the invention discloses a CRC (Cyclic Redundancy Check) control method and equipment. By adopting the technical scheme in the embodiment of the invention, the opening of CRC can be determined according to whether the BLER (Block Error Ratio) of the downlink data achieves the prearranged BLER threshold; therefore, whether the CRC is carried out and whether the CRC fields are carried in the FP frame can be determined according to the practical situation of the data transmission in the system, thus avoiding the bandwidth of the interface between the base station and the RNC (Radio Network Controller) to be occupied owning to the CRC fields carried in the FP frame under the situation of low service transmission error rate, and avoiding the processing burden owning to the analysis of CRC fields, thereby saving communication and processing resources on the basis of ensuring the service reliability.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to a CRC control method and equipment. Background technique [0002] In the existing technical solutions, the FP (frame protocol, frame protocol) frame structure stipulated in 3GPP 25.435 Ra10 and its previous agreements includes three types, such as Figure 1 to Figure 3 As shown, they are schematic diagrams of HS-DSCH (High-Speed ​​Downlink Shared Channel, high-speed downlink shared channel) DATA (data) FRAME (frame) TYPE (type) 1 structure in the prior art, and HS-DSCH DATA FRAME The schematic diagram of TYPE 2 structure, and the schematic diagram of HS-DSCH DATA FRAME TYPE 3 structure. [0003] Among them, the FP frame structure Type1 exists from the R5 protocol version, and Type2 and Type3 appear from the protocol version after HSPA+ (Enhanced High Speed ​​Packet Access, enhanced high-speed packet access). [0004] The extended field of New IE Flags (new informa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L1/00
Inventor 孙军帅王锐
Owner DATANG MOBILE COMM EQUIP CO LTD
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