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Method and device for CRC (Cyclic Redundancy Check) control through HS-DSCH (High-Speed Downlink Shared Channel) instruction

A command and signaling technology, which is applied in the field of CRC control through HS-DSCH commands, can solve problems such as waste of bandwidth resources, and achieve the effects of avoiding bandwidth occupation and saving communication and processing resources

Inactive Publication Date: 2011-10-05
DATANG MOBILE COMM EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Embodiments of the present invention provide a method and device for CRC control through HS-DSCH commands, which solves the problem of wasting bandwidth resources caused by carrying CRC fields in the prior art

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  • Method and device for CRC (Cyclic Redundancy Check) control through HS-DSCH (High-Speed Downlink Shared Channel) instruction
  • Method and device for CRC (Cyclic Redundancy Check) control through HS-DSCH (High-Speed Downlink Shared Channel) instruction
  • Method and device for CRC (Cyclic Redundancy Check) control through HS-DSCH (High-Speed Downlink Shared Channel) instruction

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Embodiment Construction

[0028] 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.

[0029] 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.

[0030] Aiming at the above problems, the present invention proposes a technical so...

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Abstract

The embodiment of the invention discloses a method and device for CRC (Cyclic Redundancy Check) control through an HS-DSCH (High-Speed Downlink Shared Channel) instruction. By applying the technical scheme provided by the embodiment of the invention, an RNC (Radio Network Controller) can determine whether to open CRC according to a preset rule or a received configuration signaling and identifies whether an FP (Frame Protocol) frame contains a CRC field through the HS-DSCH instruction so that a base station performs CRC processing according to the CRC field when the FP frame contains the CRC field. Therefore, whether to carry out CRC field transmission and CRC processing is flexibly configured between the RNC and the base station, the bandwidth occupation of an interface between the base station and the RNC caused by carrying the CRC field in the FP frame and processing load caused by analyzing the CRC field are avoided, and communication and processing recourses are saved.

Description

technical field [0001] The invention relates to the field of communication technology, in particular to a method and equipment for CRC control through HS-DSCH commands. 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] In the protocol, the check...

Claims

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Application Information

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IPC IPC(8): H04L1/00
Inventor 孙军帅王锐陈宇明
Owner DATANG MOBILE COMM EQUIP CO LTD