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Business processing method and device

A technology for business processing and sending time slots, applied in the field of communications to save system resources

Active Publication Date: 2014-06-11
DATANG GOHIGH INTELLIGENT & CONNECTED TECH (CHONGQING) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0016] The embodiment of the present invention provides a service processing method and device to solve the problem of how to transmit data when the maximum transmission delay corresponding to a data packet sent by the upper layer is greater than the system preset frame period in the existing time slot MAC technology package problem

Method used

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  • Business processing method and device

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0061] refer to Image 6 As shown, when the two-level cache method is not used, the business processing flow is:

[0062] Step 600: Receive a data packet sent by the upper layer, and obtain the maximum sending delay corresponding to the data packet.

[0063] In the embodiment of the present invention, a preset frame period is 100 ms, and a frame includes 100 time slots, that is, each time slot corresponds to a duration of 1 ms, and the number of time slots is 0 to 99. The maximum transmission delay corresponding to a certain service data packet and packet interval are both 500ms. When a data packet sent by the upper layer is received, the maximum sending delay corresponding to the data packet is 500ms, which is 5 times the frame period.

[0064] Step 610: Determine whether the above-mentioned maximum transmission delay is equal to the frame period, and if so, execute step 620; otherwise, execute step 630.

[0065] Step 620: In a frame starting from the current moment, accordi...

Embodiment 2

[0071] refer to Figure 7 As shown, when the two-level cache method is used, the business processing flow is:

[0072] Step 700: Receive a data packet sent by the upper layer, and obtain the maximum sending delay corresponding to the data packet.

[0073] In the embodiment of the present invention, a preset frame period is 100 ms, and a frame includes 100 time slots, that is, each time slot corresponds to a duration of 1 ms, and the number of time slots is 0 to 99. The maximum transmission delay corresponding to a certain service data packet and packet interval are both 500ms. When a data packet sent by the upper layer is received, the maximum sending delay corresponding to the data packet is 500ms, which is 5 times the frame period.

[0074] Step 710: Put the above data packet into the first-level cache.

[0075] When the data packet arrives, the data packet is first saved in the first-level cache.

[0076] Step 720: Judging whether the above-mentioned maximum transmissio...

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Abstract

The invention discloses a business processing method and device, and aims to solve the problems that when a maximum delay corresponding to a data packet sent by a high level is more than a frame period, a time slot needs to be chosen among multiple frames and serves as a transmitting time slot of the data packet, and the system resource is wasted. The method comprises the following steps that: a data packet transmitted by the high level is received; a maximum transmission delay corresponding to the data packet is obtained; if the maximum transmission delay is larger than one frame period, a frame is randomly selected in a time range from a current time to completion of the maximum transmission delay corresponding to the data packet; when the selected frame starts, one time slot in the selected frame is selected as a transmission time slot of the data packet; and in the transmission time slot, the data packet is transmitted. With adoption of the technical scheme of the invention, in the plurality of frames corresponding to the maximum transmission delay, one time slot in one frame is selected as the transmission time slot of the data packet; and the data packet is sent in the selected time slot, so that the system resource is saved.

Description

technical field [0001] The present invention relates to the technical field of communications, in particular to a service processing method and device. Background technique [0002] With the development of vehicle-road cooperative communication system and the gradual maturity of mobile ad hoc network technology, in order to realize real-time, dynamic and intelligent management of vehicles, Dedicated Short Range Communications (Dedicated Short Range Communications, DSRC) protocol. DSRC organically connects vehicles with vehicles, vehicles and roadside information collection equipment through two-way transmission of information, and supports point-to-point and point-to-multipoint communication. [0003] In the current international research, the main communication technology used in the vehicle-road cooperative communication system is 802.11p technology, and its MAC (Medium Access Control; Media Access Control) layer resource allocation algorithm adopts CSMA / CA (Carrier Sense...

Claims

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Application Information

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IPC IPC(8): H04L1/00
Inventor 房家奕冯媛李凤赵丽赵毅
Owner DATANG GOHIGH INTELLIGENT & CONNECTED TECH (CHONGQING) CO LTD