Service preemption method and device and base station

A business and business data technology, applied in the field of communication, can solve the problems of increased URLLC business delay, lower meaning, URLLC can not be preempted, etc., to achieve the effect of guaranteed performance, reduced impact, and small delay impact

Active Publication Date: 2018-10-09
SPREADTRUM COMM (SHANGHAI) CO LTD
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  • Abstract
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Problems solved by technology

[0004] However, the disadvantage of the existing solution is that there may be multiple sets of reference signals in the actual eMBB UE, for example, a reference signal for data demodulation (Demodulation reference signal, DMRS), a reference signal for phase noise (Phasetracking reference signal, PT-RS), Channel state information reference signal (CSI-RS)
If URLLC avoids scheduling on all symbols where RS is located, then URLLC may have few optional symbols, resulting in URLLC being unable to preempt, causing URLLC service delays to increase, and reducing the significance of introducing preemption behavior itself.
In addition, resources not used to transmit RS can be preempted by URLLC, so URLLC needs to know the RS configuration of the current eMBB user; for URLLC, additional signaling overhead is required, making the reception opaque

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  • Service preemption method and device and base station
  • Service preemption method and device and base station
  • Service preemption method and device and base station

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Embodiment Construction

[0033]As mentioned in the background, the disadvantage of the existing solution is that there may be multiple sets of reference signals in the actual eMBB UE, for example, a reference signal for data demodulation (Demodulation reference signal, DMRS), a reference signal for phase noise (Phase tracking reference signal , PT-RS), channel state information reference signal (Channel state information reference signal, CSI-RS). If URLLC avoids scheduling on all symbols where RSs are located, then URLLC may have few optional symbols, resulting in URLLC being unable to preempt, causing URLLC service delay to increase, and reducing the significance of introducing the preemption behavior itself. In addition, resources not used for transmitting RS can be preempted by URLLC, so URLLC needs to know the RS configuration of the current eMBB user; for URLLC, additional signaling overhead is required, making the reception opaque.

[0034] In the technical solution of the present invention, by...

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Abstract

The invention relates to a service preemption method and device and a base station. The service preemption method comprises the steps of when a URLLC (Ultra-reliable low-latency communication) servicepreempts an eMBB (Enhance mobile broad-band) service, scheduling the URLLC service to preempt on symbol resources beyond a preemption prohibition symbol set within each downlink unit transmission unit of the eMBB service, wherein the preemption prohibition symbol set is preconfigured; and transmitting URLLC service data by using the preempted symbol resources. The technical scheme of the invention can reduce influences imposed on the performance of the eMBB service by URLLC service preemption.

Description

technical field [0001] The present invention relates to the technical field of communications, in particular to a service preemption method, device and base station. Background technique [0002] In downlink transmission, the burst ultra-reliable low-latency communication (URLLC) service can occupy the resources used by the ongoing enhanced mobile broadband (Enhance mobile broadband-band, eMBB) service to ensure time delay request. The preemption (preemption) of the eMBB service by the URLLC service will affect the eMBB service. [0003] In the prior art, solutions for eMBB services being preempted by URLLC services are mainly limited to simulation. In the simulation, when some symbols in the eMBB downlink data are preempted by the URLLC service, if there is no resource preemption indication, the eMBB user equipment (User Equipment, UE) mistakenly regards the URLLC data as its own data for demodulation, causing serious performance problems Deterioration; if there is a res...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W72/04H04W72/12
CPCH04W72/1263H04W72/53H04W72/535
Inventor 黄甦张飒
Owner SPREADTRUM COMM (SHANGHAI) CO LTD
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