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Method and apparatus for requesting resource for control element transmission in a wireless communication system

專利號
US11159979B2
公開日期
2021-10-26
申請人
ASUSTek Computer Inc.（TW Taipei）
發(fā)明人
Wei-Yu Chen; Richard Lee-Chee Kuo; Li-Chih Tseng
IPC分類
H04W28/02; H04W72/04; H04W72/12; H04W72/08; H04L5/00; H04L12/835; H04W72/10
技術(shù)領(lǐng)域
sr,ue,numerology,bsr,mac,sidelink,tti,uplink,channel,control
地域： Taipei

摘要

A method and apparatus are disclosed from the perspective of a UE, wherein the UE is allocated with multiple SR configurations by a network node. In one embodiment, the method includes the UE triggering a MAC control element if a timer expires. The method also includes the UE triggering a SR for the MAC control element. The method also includes the UE transmitting the SR based on a first SR configuration of the multiple SR configurations, wherein the first SR configuration is associated with a highest priority logical channel having data available for transmission when the MAC control element is triggered.

說明書

Option 4 (Monitoring control channel(s) responsible for scheduling the largest or smallest numerology related to SR configuration(s) with triggered SR and/or the multiple bits setting of the last SR transmission of each SR configuration)—In this option, the UE always monitors either largest or smallest numerology. The largest or smallest numerology could be limited to those numerologies informed by SR transmission. The network (e.g. base station) will share the same understanding and schedule based on the same rule. By limiting number of control channels for monitoring, the power consumption could be reduced.

Moreover, since the UE may have multiple control channels for different numerologies, the UE may monitor other control channel which are not largest or smallest based on conditions other than SR transmission. The conditions other than SR transmission could be one or multiple options listed below:

  • 1. DurationTimer is running
  • 2. drx-InactivityTimer is running
  • 3. drx-RetransmissionTimer is running
  • 4. drx-ULRetransmissionTimer is running
  • 5. ContentionResolutionTimer is running
  • 6. An uplink grant for a pending HARQ retransmission can occur and there is data in the corresponding HARQ buffer for synchronous HARQ process
  • 7. A PDCCH indicating a new transmission addressed to the C-RNTI of the MAC entity has not been received after successful reception of a Random Access Response for the preamble not selected by the MAC entity.
  • 8. A sidelink grant for a pending HARQ (re-)transmission can occur.

權(quán)利要求

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