Radio Network Node, User Equipment (UE) and Methods Performed in a Wireless Communication Network

Patent metadata

Field	Value
Publication number	US-2022361237-A1
Application number	US-202017764580-A
Country	US
Kind code	A1
Filing date	Sep 29, 2020
Priority date	Oct 3, 2019
Publication date	Nov 10, 2022
Grant date	—

Abstract

Embodiments herein relate e.g. to a method performed by a UE ( 10 ) for managing monitoring of a control channel for transmissions from a radio network node ( 12 ). The UE activates, upon detection of a triggering event occurrence, a timer, wherein the triggering event occurrence comprises transmitting a scheduling request and/or receiving a RAR. The UE further initiates, upon expiry of the timer, a monitoring of a control channel for one or more transmissions from the radio network node.

First claim

1 - 18 . (canceled)

19 . A method performed by a user equipment (UE) for managing monitoring of a control channel from a radio network node, the method comprising:
activating, upon detection of a triggering event occurrence, a timer, wherein the triggering event occurrence comprises transmitting a scheduling request, receiving a random access response (RAR), and sending a physical uplink shared channel (PUSCH) message scheduled by a RAR grant; and initiating, upon expiry of the timer, a monitoring of the control channel for one or more transmissions from the radio network node.

20 . The method according to claim 19 , wherein the timer is a first timer in case of transmission of the scheduling request, and/or a second timer upon reception, from the radio network node, of the RAR for a Random Access Preamble not selected by a MAC entity among a contention-based Random Access Preamble, or upon sending the PUSCH message scheduled by the RAR grant.

21 . The method according to claim 19 , wherein the timer defines an interval allowing the UE not to monitor the control channel, wherein the control channel is a physical downlink control channel (PDCCH).

22 . The method according to claim 19 , wherein the UE continues monitoring the control channel during another timer that is triggered upon initiating the monitoring of the control channel.

23 . The method according to claim 19 , wherein the UE is informed of a round trip time (RTT) to the radio network node, and the timer is based on the RTT.

24 . The method according to claim 19 , further comprising:
receiving a configuration for configuring the UE to apply the timer, wherein the configuration indicates a value of the timer, a timer to use and/or a round trip time (RTT) between the radio network node and the UE.

25 . A method performed by a radio network node for handling monitoring of a control channel in a wireless communication network, the method comprising:
transmitting a configuration for configuring a UE to apply a timer to delay monitoring of the control channel by the UE, the delay accounting for a round trip time (RTT) between the radio network node and the UE, wherein the configuration indicates a value of the timer, a timer to use and/or the RTT between the radio network node and the UE.

26 . The method according to claim 25 , wherein the configuration comprises information regarding one or more of: one or more timers; which timer to use; the value of the one or more timers; the RTT between the radio network node and the UE; and/or timer or timer value of another timer indicating an interval for monitoring the control channel.

27 . A user equipment (UE) for managing monitoring of a control channel from a radio network node, wherein the UE is configured to:
activate, upon detection of a triggering event occurrence, a timer, wherein the triggering event occurrence comprises transmitting a scheduling request, receiving a random access response (RAR), and sending a physical uplink shared channel (PUSCH) message scheduled by a RAR grant; and initiate, upon expiry of the timer, a monitoring of the control channel for one or more transmissions from the radio network node.

28 . The UE according to claim 27 , wherein the timer is a first timer in case of transmission of a scheduling request, and/or a second timer upon reception, from the radio network node, of the RAR for a Random Access Preamble not selected by a MAC entity among a contention-based Random Access Preamble, or upon sending the PUSCH message scheduled by the RAR grant.

29 . The UE according to claim 27 , wherein the timer defines an interval allowing the UE not to monitor the control channel, wherein the control channel is a physical downlink control channel (PDCCH).

30 . The UE according to claim 27 , wherein the UE is configured to continue monitoring the control channel during another timer that is triggered upon initiating the monitoring of the control channel.

31 . The UE according to claim 27 , wherein the UE is informed of a round trip time (RTT) to the radio network node, and the timer is based on the RTT.

32 . The UE according to claim 27 , wherein the UE is configured to:
receive a configuration for configuring the UE to apply the timer, wherein the configuration indicates a value of the timer, a timer to use and/or a round trip time (RTT) between the radio network node and the UE.

33 . A radio network node for handling monitoring of a control channel in a wireless communication network, wherein the radio network node is configured to:
transmit a configuration for configuring a user equipment (UE) to apply a timer to delay monitoring of the control channel by the UE, the delay accounting for a round trip time (RTT) between the radio network node and the UE, wherein the configuration indicates a value of the timer, a timer to use and/or the RTT between the radio network node and the UE.

34 . The radio network node according to claim 33 , wherein the configuration comprises information regarding one or more of: one or more timers; which timer to use; value of the one or more timers; RTT between the radio network node and the UE; and/or timer or timer value of another timer indicating interval for monitoring the control channel.

35 . A method of operation by a User Equipment (UE) with respect to a radio network node of a wireless communication network, the method comprising:
delaying monitoring of a control channel for an expected transmission from the radio network node, according to a monitoring delay that accounts for a Round Trip Time (RTT) between the UE and the radio network node; and commencing monitoring of the control channel upon expiry of the monitoring delay.

Assignees

• Ericsson Telefon Ab L M

Inventors

• Hofström Björn
• Sedin Jonas
• Määttänen Helka-Liina
• Lin Xingqin

Classifications

• H04W72/23

  in the downlink direction of a wireless link, i.e. towards a terminal · CPC title

• H04L5/0053 Primary

  Allocation of signalling, i.e. of overhead other than pilot signals · CPC title

• H04W74/006 Primary

  in the downlink, i.e. towards the terminal · CPC title

• H04L5/0078

  Timing of allocation · CPC title

• H04W52/0216

  using a pre-established activity schedule, e.g. traffic indication frame · CPC title