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Protocol data unit (PDU) pack generation method and apparatus

A protocol data unit and data packet technology, applied in wireless network protocols, electrical components, connection management, etc., can solve the problems of high header overhead and large length occupied by data packet headers.

Active Publication Date: 2017-05-10
BEIJING XIAOMI MOBILE SOFTWARE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In related technologies, the length occupied by the data packet header of the PDU packet is relatively large, that is, the header overhead required to be consumed is relatively large

Method used

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  • Protocol data unit (PDU) pack generation method and apparatus
  • Protocol data unit (PDU) pack generation method and apparatus
  • Protocol data unit (PDU) pack generation method and apparatus

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Embodiment Construction

[0082] The exemplary embodiments will be described in detail here, and examples thereof are shown in the accompanying drawings. When the following description refers to the accompanying drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The implementation manners described in the following exemplary embodiments do not represent all implementation manners consistent with the present disclosure. Rather, they are only examples of devices and methods consistent with some aspects of the present disclosure as detailed in the appended claims.

[0083] In order to facilitate understanding, a brief introduction to the implementation environment involved in each embodiment of the present disclosure is first given.

[0084] In LTE, when the sender sends data to the receiver, please refer to figure 1 , The RLC layer of the sender can receive SDU packets from the PDCP layer, and because the RLC layer and the MAC layer interact t...

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Abstract

The invention discloses a protocol data unit pack generation method and apparatus, and belongs to the mobile communication technology field. The method comprises the steps of acquiring a service data unit (SDU) pack; processing the SDU pack according to the size of a preset data pack; generating a PDU pack data pack head and a data segment according to the processing result, wherein, the data pack head and the data segment comprise the PDU pack. A segment indicating FI segment and an RF segment are omitted and a preset segment is contained in the data pack head, wherein, the preset segment comprises otehre segments besides FI segment and the RF segment for redefinition in a common data pack head, or a newly added target segment, and the segment length of the newly added target segment is smaller than the total length of the FI segment and the RF segment. According to the invention, the expense for generating the data pack head is reduced, so that the FI segment can be directly omitted or keeping the target segment short while omitting the FI segment. In this way, the data pack head length is reduced, and the data pack head expense is saved.

Description

Technical field [0001] The present disclosure relates to the field of mobile communication technology, and in particular to a method and device for generating PDU packets. Background technique [0002] In LTE (Long Term Evolution, Long Term Evolution), the RLC layer (radio link control, radio link control) is in the PDCP (Packet Data Convergence Protocol, packet data convergence protocol) layer and MAC (Media Access Control, medium access control) layer At the same time, the data packet exchanged between the RLC layer and the PDCP layer is called SDU (Service Data Unit, service data unit) packet, and the data packet exchanged between the RLC layer and the MAC layer is called PDU (Packet Data Unit, protocol data unit). package. [0003] In actual implementation, the MAC layer will specify the size of the PDU packet. Normally, the size of the SDU packet received by the RLC layer is not equal to the size of the PDU packet specified by the MAC layer. Therefore, the RLC layer will trea...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L29/06H04L29/08H04W80/02H04L47/43
CPCH04L69/03H04L69/324H04W80/02H04L69/22H04W28/065H04B17/26H04L69/161H04W76/27H04L65/40
Inventor 江小威
Owner BEIJING XIAOMI MOBILE SOFTWARE CO LTD
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