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Method and device for retransmitting enhanced mobile broadband (eMBB) service data, base station and user equipment

A technology for business data and mobile broadband, applied in digital transmission systems, transmission systems, using return channels for error prevention/detection, etc., can solve problems such as increasing data block error rate, reducing available time-frequency resources, and affecting system performance

Active Publication Date: 2018-10-09
BEIJING SPREADTRUM HI TECH COMM TECH CO LTD
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Problems solved by technology

[0006] The automatic retransmission mode retransmits eMBB service data preempted by the URLLC service in eMBB time slot 1 in the initial part of eMBB time slot 2. When the initial part of eMBB time slot 2 is used to retransmit For eMBB service data, the available time-frequency resources of the eMBB service data prepared in advance on eMBB slot 2 are reduced. At this time, the bit rate of the data needs to be increased to transmit in a shorter time. Increase the block error rate of data, which seriously affects system performance

Method used

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  • Method and device for retransmitting enhanced mobile broadband (eMBB) service data, base station and user equipment
  • Method and device for retransmitting enhanced mobile broadband (eMBB) service data, base station and user equipment
  • Method and device for retransmitting enhanced mobile broadband (eMBB) service data, base station and user equipment

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Embodiment Construction

[0069] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is only some embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0070] An embodiment of the present invention provides a method for retransmitting enhanced mobile broadband service data, the method is applied to a base station, such as image 3 As shown, the method includes:

[0071] S31. Determine the threshold value of the URLLC service preempting the time slot.

[0072] S32. Send the threshold value ...

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Abstract

The invention provides a method and device for retransmitting enhanced mobile broadband (eMBB) service data, a base station and user equipment. At the base station side, the method comprises the stepsof determining a threshold value of a preemption time slot of an URLLC (Ultra Reliability and Low Latency Communication) service; transmitting the threshold value to the UE; when eMBB service data transmitted to the UE in the current eMBB time slot is preempted by the URLLC service, determining an URLLC time slot preempted by the URLLC service in the current eMBB time slot according to the arrival time of the URLLC service, the data processing delay of the URLLC service and the URLLC time slot length; determining to retransmit the eMBB time slot occupied by the eMBB service data preempted bythe URLLC service according to the URLLC time slot preempted by the URLLC service and the threshold value of the preemption time slot of the URLLC service; and retransmitting the eMBB service data preempted by the URLLC service to the UE in the determined eMBB time slot occupied by retransmitting the eMBB service data preempted by the URLLC service. According to the invention, the eMBB time slot for retransmitting the eMBB service data can be adaptively selected, so that the original eMBB service data in the eMBB time slot is ensured to be normally transmitted.

Description

technical field [0001] The present invention relates to the technical field of wireless communication, in particular to a retransmission method, device, base station and user equipment for enhanced mobile broadband service data. Background technique [0002] eMBB (enhanced Mobile Broadband) and URLLC (Ultra Reliability and Low Latency Communication) are two 5G application scenarios defined by 3GPP (3rd Generation Partnership Project). Among them, the URLLC service has very strict requirements on delay and reliability. In order to meet this requirement, a large bandwidth needs to be allocated to the URLLC service, so that the URLLC service can complete highly reliable transmission within the strict delay requirement. Because the URLLC service is bursty, if all the bandwidth is only allocated to the URLLC service, spectrum resources will be seriously wasted when no URLLC service arrives, resulting in low spectrum resource utilization. In order to improve spectrum resource ut...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W72/04H04L1/18
CPCH04L1/1867H04W72/0446H04W72/53
Inventor 张飒徐伟杰
Owner BEIJING SPREADTRUM HI TECH COMM TECH CO LTD
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