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Resource selection processing method and device and terminal

A resource selection and processing method technology, applied in the field of device and terminal, and resource selection processing method, can solve the problem that the perception mechanism cannot meet the power saving requirements of NR-V2X service transmission

Active Publication Date: 2021-01-22
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

[0005] The present invention provides a processing method, device and terminal for resource selection, which solves the problem that the existing partial sensing mechanism cannot meet the power saving requirements of NR-V2X service transmission

Method used

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  • Resource selection processing method and device and terminal
  • Resource selection processing method and device and terminal
  • Resource selection processing method and device and terminal

Examples

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no. 1 example

[0069] Such as figure 2 As shown, the embodiment of the present invention provides a resource selection processing method, which specifically includes the following steps:

[0070] Step 11: Determine N candidate resource groups in the time domain in the resource selection window, wherein the time domain interval between adjacent candidate resource groups is greater than or equal to the maximum hybrid automatic repeat request round-trip delay (max HARQ RTT); N is the number of transmissions of the service package, N≥1; each of the candidate resource groups corresponds to one transmission of the service package;

[0071] In this step, the resource selection window is the time period from n+T1 to n+T2, where n is the generation time of the next transmission block TB (service packet), 0≤T 1 ≤T proc,1 ,T proc,1 Indicates the transmission processing delay of the user equipment UE, T 2min ≤T 2 ≤D i ,T 2min T configured for upper layers 2 minimum value of D i is the maximum ...

example 1

[0090] Example 1: see image 3 , which shows the max HARQ gap configuration mode when the PSFCH period=1 and K=2.

[0091] Wherein, when the PSFCH period is 1, each time slot has a PSFCH, and the max HARQ gap is only related to the minimum time delay K of the HARQ feedback. When the value of K is 2, the HARQ gap of data packets transmitted on any slot is 2, and the max HARQ gap is also 2; similarly, when the value of K is 3, the max HARQ gap is 3.

example 2

[0092] Example 2: see Figure 4 , which shows the max HARQ gap configuration mode when the PSFCH period=2 and K=2.

[0093] Wherein, when the PSFCH period is 2, not every slot has PSFCH, and the max HARQ gap is related to the minimum delay K of HARQ feedback and the position of data packet transmission in each PSFCH period.

[0094] When the value of K is 2, the data packet transmitted on the first slot of each PSFCH period has a HARQ gap of 3, and the data packet transmitted on the second slot of each PSFCH period has a HARQ gap of 2. Therefore, the max HARQ gap is 3;

[0095] When the value of K is 3, the data packet transmitted on the first slot of each PSFCH period has a HARQ gap of 3, and the data packet transmitted on the second slot of each PSFCH period has a HARQ gap of 4. So the max HARQ gap is 4.

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Abstract

The invention provides a resource selection processing method, device and terminal, and the method comprises the steps: determining N candidate resource groups in a time domain in a resource selectionwindow, and enabling the time domain interval between the adjacent candidate resource groups to be greater than or equal to the maximum round-trip time delay of a hybrid automatic repeat request, wherein N is the transmission frequency of the service packet and is greater than or equal to 1; each candidate resource group corresponds to one-time transmission of the service packet; executing a partof sensing periods of resource sensing in a resource sensing window, and executing channel monitoring on time periods corresponding to the N candidate resource groups; and respectively selecting transmission resources for the service packet in the N candidate resource groups of the resource selection window according to a monitoring result. According to the scheme of the invention, the power consumption of the UE can be reduced on the basis of satisfying the service transmission reliability.

Description

technical field [0001] The present invention relates to the field of communication technologies, and in particular to a resource selection processing method, device and terminal. Background technique [0002] At present, V2X (Vehicle-to-Everything, Vehicle-to-Everything) technology is continuously receiving support from the ecosystem. 3GPP R14 LTE V2X introduces new features to support portable terminals (P-UE). Considering the power consumption problem caused by the continuous reception of the P-UE, the premise of the 3GPP standard design is to assume that the application layer of the P-UE does not need to continuously receive the PC5 V2X messages of other UEs, that is, the P-UE only sends but not receives, so as to save electricity purpose. [0003] The sensing process of P-UE is partial sensing, such as figure 1 It is a schematic diagram of the partial sensing mechanism. The P-UE determines the positions of Y subframes in the resource selection window by itself accordi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W4/40H04W52/02H04L1/16
CPCH04W4/40H04W52/0219H04L1/1607Y02D30/50Y02D30/70
Inventor 温小然赵锐
Owner DATANG GOHIGH INTELLIGENT & CONNECTED TECH (CHONGQING) CO LTD
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