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Secondary cell beam recovery

A technology of secondary cells and beams, applied in the directions of location diversity, wireless communication, diversity/multi-antenna systems, etc.

Pending Publication Date: 2020-12-22
NOKIA TECH OY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] However, challenges arise in beam failure recovery techniques involving cross-carrier reference signals, where the primary cell and one or more secondary cells operate with different beam failure detection reference signals

Method used

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  • Secondary cell beam recovery
  • Secondary cell beam recovery
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Embodiment Construction

[0032]The features, structures, or characteristics of certain embodiments described throughout the specification can be combined in any suitable manner in one or more embodiments. For example, throughout the specification, the use of the phrases "certain embodiments", "some embodiments", "other embodiments" or other similar language refers to the fact that a particular feature, structure, or characteristic described in conjunction with the embodiment can be Included in at least one embodiment of the present invention. Therefore, throughout the specification, the appearances of the phrases "in some embodiments", "in some embodiments", "in other embodiments" or other similar language do not necessarily all refer to the same set of embodiments, and the description The features, structures or characteristics of can be combined in any suitable manner in one or more embodiments.

[0033]Certain embodiments contained herein can provide clear technical advantages. For example, some embodiments...

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Abstract

According to a first embodiment, a method may include determining, by user equipment, that a secondary cell beam failure has occurred at a medium access control layer. The method may further include determining, by the user equipment, one or more other secondary cell candidates based on at least candidate beam measurements of a primary cell. The method may further include transmitting, by the userequipment, one or more data packets related to one or more selected other secondary cell candidates.

Description

[0001]Cross references to related applications [0002]This application claims the benefit of U.S. Provisional Application No. 62 / 669,719 filed on May 10, 2018. The entire content of the above cited application is incorporated herein by reference.Background technique[0003]field:[0004]Certain embodiments may involve wireless communication systems. For example, some embodiments may involve beamforming techniques for secondary cells.[0005]Description of related fields:[0006]Random access channel (RACH) procedures such as contention-free random access (CFRA) or contention-based random access (CBRA) can be initiated by user equipment (UE) for beam failure recovery technology on the primary cell. Beam failure recovery technology (also known as link reconfiguration) can restore broken link connections. For example, the beam failure recovery process can detect when one or more service control channel (PDCCH) links are in a failure condition and need to be restored. In order to recover the fai...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W76/18H04B7/06H04B7/08H04W24/02H04W72/04H04W74/08
CPCH04W76/19H04W76/15H04B7/0695H04B7/022H04W74/0838H04W24/04H04W24/08H04W24/10H04W72/232H04B17/336H04B17/328H04B7/06964H04L5/0053H04W16/28H04W74/02H04W74/0833H04W80/02
Inventor T·科斯克拉S·图尔蒂南J·凯科南M·埃内斯库S·阿科拉J·卡加莱南
Owner NOKIA TECH OY