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Resource determination method and communication equipment

A resource determination and resource technology, applied in the field of communications, can solve problems such as inconsistencies in understanding, and achieve the effect of ensuring appropriateness and improving accuracy.

Active Publication Date: 2021-07-16
VIVO MOBILE COMM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] Embodiments of the present invention provide a resource determination method and communication equipment to solve the problem in the prior art that the terminal and the control node may have inconsistent understanding of uplink channel resources

Method used

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  • Resource determination method and communication equipment
  • Resource determination method and communication equipment
  • Resource determination method and communication equipment

Examples

Experimental program
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Effect test

example 1

[0115] Example 1, there is a timing offset offset between the Sidelink timing and the Uu timing.

[0116] Suppose offset=0.5 Sidelink time slots=0.5 UL time slots; DCI schedules two Sidelink transmissions and K=N=2; Uplink subcarrier spacing (UL SCS)=Sidelink subcarrier spacing (Sidelink SCS)=30kHz.

[0117] According to the base station timing, the time slot corresponding to y2=2 (30kHz time slot) is time slot 1, and according to the Sidelink timing, the time slot corresponding to y2=2 is time slot 1', such as figure 2 As shown, it can be seen that the positions of slot 1 and slot 1' are different. The terminal actually thinks that the PUCCH cannot be sent earlier than time slot 1'. Since the PUCCH resource is a Uu resource, the PUCCH resource actually used for sidelink HARQ-ACK information feedback should be one of the following:

[0118] An available Uu slot or UL slot that overlaps with slot 1' and is not earlier than slot 1';

[0119] Alternatively, the latest availabl...

example 2

[0123] Example 2, there is a timing offset offset between the Sidelink timing and the Uu timing.

[0124] Suppose offset=0.5Sidelink time slot=0.25UL time slot; DCI schedules two Sidelink transmissions and K=N=2; Uplink subcarrier spacing (UL SCS)=15kHz, Sidelink subcarrier spacing (SidelinkSCS)=30kHz.

[0125] According to the base station timing y2=1 (15kHz time slot), the corresponding time slot is time slot 1, and according to the Sidelink timing y2=1 corresponding time slot is time slot 1', such as image 3 As shown, it can be seen that the positions of slot 1 and slot 1' are different. Therefore, the PUCCH resources actually used for sidelink HARQ-ACK information feedback should be one of the following situations:

[0126] An available Uu slot or UL slot that overlaps with slot 1' and is not earlier than slot 1';

[0127] Alternatively, the latest available Uu slot or UL slot not earlier than slot 1';

[0128] Or, corresponding to T PSFCH_Uu +2+ceil(0.5)=T PSFCH_Uu ...

example 3

[0134] Example 3, there is a timing offset offset between the Sidelink timing and the Uu timing.

[0135] Suppose offset=0.75Sidelink time slot=1.5UL time slot; DCI schedules two Sidelink transmissions and K=N=2; Uplink subcarrier spacing (UL SCS)=30kHz, Sidelink subcarrier spacing (SidelinkSCS)=15kHz.

[0136] The time slot corresponding to the base station timing y2=4 (30kHz) is time slot 1, and the time slot corresponding to Sidelink timing y2=4 is time slot 1', such as Figure 4 As shown, it can be seen that the positions of slot 1 and slot 1' are different. Therefore, the PUCCH resources actually used for sidelink HARQ-ACK information feedback should be one of the following situations:

[0137] An available Uu slot or UL slot that overlaps with slot 1' and is not earlier than slot 1';

[0138] Alternatively, the latest available Uu slot or UL slot not earlier than slot 1';

[0139] Or, corresponding to T PSFCH_Uu +2+ceil(0.75)=T PSFCH_UuThe latest available Uu time s...

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Abstract

Provided are a resource determination method and a communication device, and the method comprises the steps: determining a time domain resource of a target uplink channel according to a time interval y2 and a first time domain position of a physical side link feedback channel (PSFCH), or according to the time interval y2 and a second time domain position of the PSFCH, wherein the time interval y2 is a time interval between the PSFCH and a target uplink channel. According to the embodiment of the invention, the method can realize consistent understanding of the terminal and the control node on the time domain resource of the target uplink channel, thereby ensuring the suitability of resource allocation of the control node on the target uplink channel, and improving the accuracy of determining the resource of the target uplink channel by the terminal.

Description

technical field [0001] The present invention relates to the field of communication technologies, in particular to a method for determining resources and a communication device. Background technique [0002] Sidelink (direct link or sidelink) terminals can communicate with other terminals on Sidelink, and these terminals are usually vehicles, roadside units (Road Site Unit, RSU), mobile phones, etc. that support Sidelink technology. [0003] When the user performs Sidelink transmission (sending or receiving), it will be based on the timing of the selected synchronization reference source (synchronization reference source) or also known as the synchronization reference (synchronization reference) or timing reference (timing reference). The user's synchronization The source may be a base station, a global navigation satellite system (Global Navigation Satellite System, GNSS), timing generated by its own local clock, or timing provided by other devices. Sidelink resources may b...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L1/18H04L5/00H04W72/04
CPCH04L1/1812H04L5/0055H04W72/0446H04W76/14H04L27/26025H04L27/2602H04W72/02H04L1/1861H04L1/1854H04L1/1896H04L1/1893H04W72/20H04W72/23
Inventor 刘思綦纪子超
Owner VIVO MOBILE COMM CO LTD
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