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Method for transmitting data packet in mobile communication system

A mobile communication system and data packet technology, which is applied in the field of data packet transmission in mobile communication systems, can solve the problems of reduced data transmission efficiency and complex processing, and achieve the effect of occupying less physical transmission resources and improving data transmission efficiency

Inactive Publication Date: 2012-11-21
福建先创通信有限公司
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  • Abstract
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  • Claims
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Problems solved by technology

However, because embedded signaling needs to occupy physical transmission resources, it will result in lower data transmission efficiency and more complex processing

Method used

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  • Method for transmitting data packet in mobile communication system
  • Method for transmitting data packet in mobile communication system
  • Method for transmitting data packet in mobile communication system

Examples

Experimental program
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Embodiment Construction

[0028] The present invention will be further described below through specific embodiments.

[0029] refer to image 3 , Figure 4 and Figure 5 , a method for sending data packets in a mobile communication system, segmenting a service data unit SDU and processing it to generate one or more protocol data units PDUs, and then dividing the PDUs into byte-aligned segments that can be allocated in just one wireless frame One or multiple transmission blocks of the same length transmitted by physical channel resources, when the data payload of the last segment is not enough to fill the entire segment, add padding bits at the end of the segment, so that the length of the segment is the same as The other segments are the same, and a unified data packet header is used to indicate the transmission format of these transmission blocks. Specifically include the following steps:

[0030] ① Segment the service data unit SDU;

[0031] ② Add CRC to SDU segment to generate PDU;

[0032] ③ ...

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Abstract

The invention discloses a method for transmitting a data packet in a mobile communication system, which comprises the following steps: segmenting a service data unit (SDU) and processing the segmented SDU to generate one or more protocol data units (PDUs); aligning the PDUs in bytes and dividing the PDUS into one or more transmission blocks of the same length which can be just transmitted by physical channel resources allocated in a radio frame respectively; and when the data payloads of the last segment are insufficient to fill the whole segment, filling bits at the tail of the segment to make the segment as long as other segments, and indicating the transmission formats of the transmission blocks by using a uniform data packet header. When the method is applied to the data packet transmission in the mobile communication system, particularly a narrow-band communication system, complete data transmission can be completed by less indication information, less physical transmission resources are occupied, and the data transmission efficiency can be improved effectively.

Description

technical field [0001] The invention relates to the technical field of mobile communication, in particular to a method for transmitting data packets in a mobile communication system. Background technique [0002] In the digital mobile communication system, in addition to supporting traditional voice communication, data communication is also supported. Since the length of the data packet is generally variable, and the delay requirement is not as high as that of the voice service, the transmission method is different from the voice transmission and needs to be considered separately. For high-level data packets, when the physical resources provided by the physical layer are not enough to transmit the entire data packet each time, the data packet needs to be segmented. When segmenting the data packet, not every segment may exactly match the physical layer. The provided transmission bit length, so padding bits need to be added to some segments. For the transmission of variable-...

Claims

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Application Information

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IPC IPC(8): H04L1/00H04L1/16
Inventor 吴松程履帮
Owner 福建先创通信有限公司
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