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Method and device for wireless communication

A wireless communication and soft information technology, applied in the field of communication, which can solve the problems of strict delay requirements and inability to wait for the completion of eMBB service data transmission.

Active Publication Date: 2021-01-05
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When URLLC service data arrives at the mobile communication network at random, the strict delay requirements make it impossible to wait for the currently scheduled eMBB service data transmission to complete

Method used

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  • Method and device for wireless communication
  • Method and device for wireless communication
  • Method and device for wireless communication

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0076] The mode of embedding the reissued data into the data of the next scheduling unit at the receiving end

[0077] Such as Figures 2A-2E In the schematic diagram of the data structure, an eMBB time slot (for example, the sth slot) sent to the common terminal 102 includes an eMBB control field (eMBB control), an eMBB data field (eMBB data), URLLC mini-slot (URLLC mini-slot). The URLLC mini-slot further includes a URLLC control domain (URLLC control) and a URLLC data domain (URLLC data). Certainly, the URLLC control domain may also be called the PDCCH corresponding to the mini-slot, or mini-PDCCH for short.

[0078] An eMBB control field (eMBB control) and an eMBB data field (eMBB data) are included in a subsequent eMBB time slot (for example, the s+t slot) sent to the common terminal 102 . Wherein, in the eMBBdata in the s+t slot, on the time-frequency resources that are at the same relative position or related (or the same relative shape) as the URLLC mini-slot in the ...

example 2

[0088] Example 2. Reference Figure 2B , eMBB frequency selection scheduling

[0089] In the eMBB frequency selection scheduling method, the transmission data for a terminal device (or user) can be scheduled on different frequency domain resources in different slots, such as Figure 2B As shown, the frequency domain resource of slot s+t is different from that of slot s. In the embodiment of the present invention, the relative time-frequency position of the eMBB reissue (retransmission) data in the normally scheduled eMBB slot is the same (or has the same shape) as the relative time-frequency position of the previously punctured URLLC mini-slot. For its content, please refer to Figure 2B And the aforementioned descriptions about the same or related positions.

example 3

[0090] Example 3. Reference Figure 2C , eMBB adaptive scheduling

[0091] In the eMBB adaptive scheduling mode, for different eMBB transmission times, the size of frequency domain resources to be scheduled may be different. Even for reissued (retransmitted) data in a certain eMBB process, if adaptive HARQ is used, the size of the frequency domain resource during retransmission may be different. In this case, starting from the frequency domain start position of the eMBB service, the relative time domain position can also be kept the same.

[0092] exist Figure 2C In the manner shown, the eMBB control channel part in the eMBB slot s+t indicates the time-frequency resource where the reissued (retransmitted) data is located.

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PUM

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Abstract

A method for wireless communication, comprising: determining a scheduled first time-frequency resource, wherein the first time-frequency resource is scheduled to be used by a sending end to send first data, and the repeated time-frequency resource in the first time-frequency resource The allocated time-frequency resources are scheduled for sending the second data; the transmitting end transmits the second data on the re-allocated time-frequency resources, and the remaining first time-frequency resources other than the re-allocated time-frequency resources sending part of the first data on resources; the sending end uses the reissued time-frequency resource determined according to the reallocated time-frequency resource in the second time-frequency resource to send the first data due to the second The remainder of the data occupied but not sent.

Description

technical field [0001] Embodiments of the present invention relate to the field of communication, and more specifically, to a method and device for wireless communication. Background technique [0002] At present, according to the requirements of the International Telecommunication Union (ITU) for future communication systems, the air interface in the future communication system needs to support various services, such as: enhanced mobile broadband (Enhanced Mobile Broadband, eMBB) services, extremely high reliability Low-latency communication (Ultra-reliable LowLatency Communication, URLLC) business, massive machine-type communication (Massive machine-type communication, Massive MTC) business, etc. [0003] eMBB services mainly include ultra-high-definition video, augmented reality AR, virtual reality VR, etc., and are characterized by a large amount of transmitted data and a high transmission rate. The URLLC service is mainly used for industrial control in the Internet of ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W72/04H04W72/12
CPCH04W72/1263H04W72/20H04W72/0446H04L5/0037H04L5/0007H04L5/0044H04W72/044H04W72/12H04W72/535H04W72/23
Inventor 董朋朋彭金磷杜白张鹏
Owner HUAWEI TECH CO LTD
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