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Failure recovery of sidelink with beamforming

A fault recovery, side chain technology, applied in the direction of radio transmission system, electrical components, connection management, etc., can solve problems such as faults, tracking and aligning mobile Tx and Rx beam difficulties, communication link blocking, etc.

Pending Publication Date: 2021-08-17
NOKIA TECHNOLOGLES OY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Even with this modification, it is difficult to track and align the beams of moving Tx and Rx when the vehicle is moving fast
[0005] Another challenge in the mmWave frequency band is the high penetration loss, making the communication link between two vehicles easily blocked by buildings and objects from other vehicles
Therefore, the established side link between vehicles may suffer from radio link failure due to misalignment of beams and / or presence of obstacles between Tx and Rx, causing channel conditions to change abruptly from line-of-sight (LOS) to Change to non-line-of-sight (NLOS)

Method used

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  • Failure recovery of sidelink with beamforming
  • Failure recovery of sidelink with beamforming
  • Failure recovery of sidelink with beamforming

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Embodiment Construction

[0030] As discussed in 3GPP TS 36.300 and TS 38.300, the radio link failure recovery process in long-term evolution (LTE) or new radio (NR) technology can vary from radio resource control (RRC) of the appropriate cell on the UU Interface. Re-establishment of the connection is performed, and the radio link between the user equipment and the base station is re-established using the existing user equipment context (if available). However, the wireless link fault recovery scheme specified for the UU interface may not be suitable for solving the problem of wireless link failure caused by the unsatisfaction and / or transmitting and receiving user equipment due to transmitting and receiving beams.

[0031] The initial beam alignment, beam tracking, and / or beam recovery can facilitate beam operation by utilizing edge information such as a basic security message (BSM), and the edge information can include position, speed, acceleration, heading, and prediction path. The higher level base...

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Abstract

According to a first embodiment, a method may include transmitting, by a first user equipment, at least one sidelink failure indication using at least one sidelink failure recovery-specific configuration. The method may further include receiving, by the first user equipment, at least one sidelink failure response. The method may further include determining, by the first user equipment, at least one source-specific sidelink recovery mode associated with the at least one sidelink failure recovery-specific configuration.

Description

[0001] Cross-reference [0002] This application claims the rights of US Provisional Application No. 62 / 773,797, filed on November 30, 2018. The entire contents of the above applications are incorporated herein by reference. Technical field [0003] Some embodiments may involve a wireless communication system. For example, some embodiments can relate to side link fault recovery. Background technique [0004] To support applications such as Vehicle Platooning, extended sensors and / or other advanced driving capabilities, the Third Generation Partnership Program (3GPP) can support various side link frequency ranges (FRs, including FR1 and FR2. Such applications may require high data rates, such as sharing video streams between mobile vehicles. The millimeter wave band in FR2 provides a wide bandwidth for high data rate transmission, and is considered to be a candidate band for side link operations, especially for those who require high data rates. However, the millimeter wave ba...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W76/19H04W88/08
CPCH04W76/19H04W88/08H04B7/088H04W92/18
Inventor 于玲V·范潘李泽宪
Owner NOKIA TECHNOLOGLES OY
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