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System and method for beam failure recovery

A fault recovery and beam technology, applied in transmission systems, radio transmission systems, diversity/multi-antenna systems, etc., to reduce communication overhead and improve efficiency

Active Publication Date: 2020-03-06
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, path loss is an important issue

Method used

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  • System and method for beam failure recovery
  • System and method for beam failure recovery
  • System and method for beam failure recovery

Examples

Experimental program
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Embodiment Construction

[0042] The making and using of the present exemplary embodiments are discussed in detail below. It should be appreciated, however, that the present disclosure provides many applicable inventive concepts that can be embodied in a wide variety of specific contexts. The specific embodiments discussed are merely illustrative of specific ways to make and use the various embodiments, and do not limit the scope of the invention.

[0043] figure 1 An exemplary wireless communication system 100 is shown. The communication system 100 includes an access node 105 serving user equipment (user equipment, UE) 115 . In the first mode of operation, communications to and from UE 115 pass through access node 105 . In the second mode of operation, communications to and from the UE 115 do not go through the access node 105, but the access node 105 typically allocates resources for the UE 115 to communicate with. An access node can also generally be called an evolved NodeB (evolvedNodeB, eNB), ...

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Abstract

A method for operating a user equipment (UE) includes detecting a failure of a first link between the UE and an access node, and based thereon, detecting a second link between the UE and the access node, sending, to the access node, a beam failure recovery request (BFRQ) on one or more physical random access channel (PRACH) resources associated a third link conveying a reference signal, wherein the third link and the second link are quasi co-located (QCLed), wherein the BFRQ includes a group identifier associated with a UE group including the UE, and monitoring one or more PRACH response opportunities associated with the one or more PRACH resources for a beam failure recovery response (BFRP).

Description

[0001] This application claims priority to a prior application to U.S. Nonprovisional Patent Application No. 15 / 836,444, filed December 8, 2017, entitled "System and Method for Beam Fault Recovery," which in turn claims Priority Claim to U.S. Provisional Patent Application No. 62 / 544,457, filed August 11, 2017, entitled "System and Method for Beam Fault Recovery," the entire contents of which are set forth in Incorporated into this text by way of introduction. technical field [0002] The present invention relates generally to a system and method for digital communications, and in particular embodiments, to a system and method for beam failure recovery. Background technique [0003] One possible deployment scenario for the fifth generation (5G) New Radio (NR) system architecture uses high frequency (HF) (6 gigahertz (GHz) and higher frequencies, such as mm millimeter wavelength (mmWave)) operating frequency to utilize greater available bandwidth and less interference than w...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B7/08
CPCH04W74/0833H04L5/0048H04L5/0053H04B7/0695H04B7/088H04W4/08H04W76/19H04W72/51H04W76/18H04W72/046H04W74/08
Inventor 夏鹏飞权荣训刘斌
Owner HUAWEI TECH CO LTD