Devices, methods and computer programs for two-way beam failure recovery in wireless communications

A method, wherein the method is applied to a network node device or an apparatus applicable in the network node device, the method comprising:

• receiving, from a client device by a network node device, a downlink beam failure recovery request, wherein the downlink beam failure recovery request indicates at least one new downlink candidate beam determined to replace at least one failed downlink beam;
• detecting, by the network node device, at least one failed uplink beam while receiving the downlink beam failure recovery request from the client device;
• determining, by the network node device, according to reception of the downlink beam failure recovery request from the client device, at least one new uplink candidate beam to replace the detected at least one failed uplink beam;
• generating, by the network node device, uplink redirection information indicating the determined at least one new uplink candidate beam;
• generating, by the network node device, a response comprising the generated uplink redirection information;
• and
• transmitting, by the network node device, the generated response to the client device.

An apparatus, wherein the apparatus comprises a client device or is applicable in the client device, the apparatus comprising:

• at least one processor;
• and
• one or more memories coupled to the at least one processor and storing programming instructions for execution by the at least one processor to:
• transmit, to a network node device, a generated downlink beam failure recovery request, wherein the generated downlink beam failure recovery request indicates at least one new downlink candidate beam determined to replace at least one failed downlink beam;
• and
• receive, from the network node device, a response to the transmitted downlink beam failure recovery request, the response comprising uplink redirection information indicating at least one new uplink candidate beam determined to replace at least one failed uplink beam according to reception of the generated downlink beam failure recovery request from the client device.