Beam receiving failure reporting method, user equipment, medium and system

A technology of user equipment and beam, which is applied in the field of communication, can solve the problems of configuring dedicated preambles, waste of PUCCH resources, UE cannot notify the base station in time, and achieve the effect of improving the success rate

Active Publication Date: 2019-07-16
SPREADTRUM COMM (SHANGHAI) CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the PRACH is not configured, a dedicated preamble cannot be configured for the UE to notify the base station that the beam reception fails, so when the beam reception failure occurs, the UE cannot notify the base station in time, which may cause call drop and the communication on the SCell cannot be restored in time, affecting the service of the UE quality
If an implementation sc

Method used

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  • Beam receiving failure reporting method, user equipment, medium and system
  • Beam receiving failure reporting method, user equipment, medium and system
  • Beam receiving failure reporting method, user equipment, medium and system

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Embodiment Construction

[0030] For SCell, when PRACH is not configured, a dedicated preamble cannot be configured for the UE to notify the base station of beam reception failure. Therefore, when a beam reception failure occurs, the UE cannot notify the base station in time, which may cause call drop and affect the service quality of the UE. If an implementation scheme similar to that of PCell is adopted, PRACH needs to be configured for each SCell. When the number of SCells is large, PRACH resources will be wasted and network deployment will be affected. If the beam reception failure is reported through the PCell measurement report, the overhead of the PCell PUCCH will be increased, resulting in waste of PUCCH resources.

[0031] In the embodiment of the present invention, the identifier of the secondary cell where the beam reception fails and the identifier of the corresponding beam candidate are encapsulated into a MAC layer control factor, and the MAC layer control factor is sent to the base statio...

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Abstract

The invention discloses a beam receiving failure reporting method, user equipment, a medium and a system. The reporting method for the beam receiving failure comprises the following steps: acquiring an auxiliary cell identifier with the beam receiving failure; selecting other beams as candidate beams in the auxiliary cell where the beam receiving failure occurs; packaging the identification of thesecondary cell with the beam receiving failure and the identification of the candidate beam into an MAC layer control factor, and sending the MAC layer control factor to a base station through othercells which are a main cell, a main secondary cell or other secondary cells without the beam receiving failure. By applying the scheme, under the condition that a PRACH (Physical Random Access Channel) and a PUCCH (Physical Uplink Control Channel) are not occupied, the secondary cell identifier with the beam receiving failure and the corresponding alternative beam can be reported to the base station.

Description

technical field [0001] The embodiments of the present invention relate to the communication field, and in particular to a method for reporting failure of beam reception, user equipment, medium and system. Background technique [0002] In a 5G New Radio (New Radio, NR) system, a cell (Cell) may be composed of multiple beams (Beam). When a cell includes multiple beams, each beam broadcasts its corresponding synchronization signal block (Synchronization Signal BLOCK, SS BLOCK), and the synchronization signal block carries the synchronization signal block index (SSBLOCK INDEX), and the user equipment (User Equipment) passes Synchronization signal blocks are received for downlink synchronization, and synchronization signal blocks corresponding to different beams carry different synchronization signal block indexes. When the UE moves in the cell, it selects the beam to switch according to the measurement of the synchronization signal block. [0003] For carrier aggregation, a ba...

Claims

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Application Information

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IPC IPC(8): H04W72/04H04W16/28
CPCH04W72/046H04W16/28H04W72/21H04W72/04H04B7/0695H04B7/063H04W76/19H04W76/15
Inventor 顾祥新邓云
Owner SPREADTRUM COMM (SHANGHAI) CO LTD
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