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Methods for efficient signaling in v2x communications

A channel and signal technology, applied in the field of effective signaling in V2X communication, to achieve the effect of improving operation efficiency and saving wireless resources

Active Publication Date: 2019-04-16
TELEFON AB LM ERICSSON (PUBL)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This problem is made worse by the fact that within its allocation UE may need to divide its RBs for transmission of control information and data
Furthermore, the overhead allocated according to the SA signaling data is challenging and should be kept as compact as possible

Method used

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  • Methods for efficient signaling in v2x communications
  • Methods for efficient signaling in v2x communications
  • Methods for efficient signaling in v2x communications

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0095] Embodiment 1. A method for controlling radio resources for data transmission by a transmitting user equipment UE (100), the method comprising:

[0096] determining (400, 502) a transmission bandwidth for said data transmission;

[0097] determining (402, 500) allocated bandwidth; and

[0098] A scheduling assignment is sent (404, 504) to a receiving UE, the scheduling assignment indicating a number or set of subchannels within the assigned bandwidth.

Embodiment 2

[0099] Embodiment 2. The method according to embodiment 1, wherein determining (400, 502) the transmission bandwidth comprises:

[0100] The transmission bandwidth is determined (400) based on an allowed discrete Fourier transform size.

Embodiment 3

[0101] Embodiment 3. The method according to embodiment 1 or 2, wherein determining (402, 500) the allocated bandwidth comprises:

[0102] The allocated bandwidth is determined (402) based on the transmission bandwidth using defined rules.

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PUM

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Abstract

Various operations that can be performed by a transmitting UE to schedule radio frequency resources for use in a data transmission are presented. The transmitting UE determines the transmission bandwidth, subject to certain restrictions, such as allowed DFT sizes for the UE for a data transmission. The determination may be performed through autonomous resource selection operations and / or may be performed using information received through signaling received from the network node as part of a scheduling grant. The UE further determines the ALLOCATED BANDWIDTH. The ALLOCATED BANDWIDTH can be determined based on the TRANSMISSION BANDWIDTH, which has been determined, using a defined rule. Furthermore, the UE generates and transmits toward a receiving UE a scheduling assignment (SA) that indicates the number or the set of subchannels that are within, and conform to, the ALLOCATED BANDWIDTH which was determined. The UE can then perform the data transmission using the SA indicated number or set of subchannels. Corresponding operations and methods are presented for a receiving UE.

Description

technical field [0001] The present disclosure relates to methods for resource management for wireless communication between user equipments, operation of network nodes and user equipments. Background technique [0002] During Release 12, the LTE standard has been extended with support for device-to-device (D2D) (specified "sidelink") features for commercial and public safety applications. Some applications supported by Release 12 LTE are device discovery, where a device can sense the proximity of another device and an associated application by broadcasting and detecting discovery messages carrying device and application identification. Another application involves direct communication over physical channels that terminate directly between devices. [0003] D2D communication can be extended to support vehicle-to-X (V2X) communication, which includes any combination of direct communication between vehicles, pedestrian-carried devices, and infrastructure-mounted devices. V2X ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L5/00H04W72/00H04W92/16H04W8/00
CPCH04W4/40H04W4/70H04W72/0453H04W72/21H04L5/0044H04L5/0064H04L5/0094H04W8/005H04W4/46H04L5/0053H04W92/16H04W72/20H04L5/0007H04L5/0037H04W72/02
Inventor S·索伦蒂诺R·布拉斯科塞拉诺H·多
Owner TELEFON AB LM ERICSSON (PUBL)
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