Methods for multi-sim ue connected mode operation

Patent metadata

Field	Value
Publication number	US-12160913-B2
Application number	US-202017776654-A
Country	US
Kind code	B2
Filing date	Nov 13, 2020
Priority date	Nov 13, 2019
Publication date	Dec 3, 2024
Grant date	Dec 3, 2024

Abstract

Methods and apparatuses are described herein for multi-subscriber identification module (SIM) connected mode operation. In one embodiment, a wireless communications device may receive, from an access stratum interface, a request access to the receiver chain during a receiving opportunity. The wireless communications device may determine that the receiver chain is available during the receiving opportunity. The wireless communications device may send a response indicating access is granted to cause the access stratum interface to receive a downlink transmission during the receiving opportunity. The wireless communications device may receive, from the access stratum interface, a second request for a transmitter chain during a transmitting opportunity. The wireless communications device may determine that the transmitter chain is available during the transmitting opportunity. The wireless communications device may send a second response indicating access is granted to enable the access stratum interface to transmit an uplink transmission during the transmitting opportunity.

First claim

What is claimed is:

1. A wireless transmit/receive unit (WTRU), the WTRU comprising:
a receiver configured to receive downlink information indicating one or more of: a first receive (RX) opportunity (RXOP), a first RX capability, a second RXOP, or a second RX capability;
based on the downlink information, the WTRU further configured to establish one or more of: a first connection with a first network of a first subscriber identity module (SIM), or a second connection with a second network of a second SIM;
the WTRU further configured to perform one or more of: a first reception from the first network or a second reception from the second network; and
a transmitter configured to send, to the first network or second network, in response to a missed first RXOP or a missed second RXOP, an indication of adapted behavior of a Medium Access Control (MAC) layer interface.

2. The WTRU of claim 1 , wherein the transmitter is further configured to:
signal, to the first network, a first RX capability, or
signal, to the second network, a second RX capability;
wherein the first RX capability or the second RX capability indicate one or more of: a number or receivers for reception from the first network or the second network, a DownLink (DL) Multiple Input Multiple Output (MIMO) capability, a DL carrier aggregation (CA) capability, or a DL BandWidth part (BWP) operation capability.

3. The WTRU of claim 1 , wherein a receiver or transmitter chain is shared across the first network and the second network.

4. The WTRU of claim 3 , wherein the sharing of the receiver or transmitter chain is based on adapting one or more MAC counters or timers in response to the missed first RXOP or the missed second RXOP.

5. The WTRU of claim 1 , wherein the indication provides information indicating a type of adapted behavior.

6. The WTRU of claim 5 , wherein the type of adapted behavior comprises adapting one or more MAC counters in response to the missed first RXOP or the missed second RXOP, wherein the adapted one or more MAC counters are incremented to avoid declaring failure prematurely.

7. The WTRU of claim 5 , wherein the type of adapted MAC behavior comprises:
adapting one or more MAC timers in response to the missed first RXOP or the missed second RXOP, wherein the adapted one or more MAC timers are extended to avoid declaring failure prematurely.

8. The WTRU of claim 1 , wherein the transmitter is further configured to send, to one or more upper layers, an indication of a reception failure when a number of RXOP misses exceeds a threshold.

9. The WTRU of claim 1 , wherein the WTRU comprises a MAC layer comprising a common MAC layer interface and a dedicated MAC layer interface, wherein the dedicated MAC layer interface is associated with the first SIM or the second SIM and the common MAC layer interface is shared across both the first SIM and the second SIM.

10. A wireless transmit/receive unit (WTRU), the WTRU comprising:
a receiver configured to receive uplink information indicating one or more of: a first transmit (TX) opportunity (TXOP) or a second TXOP;
based on the uplink information, the WTRU further configured to establish one or more of: a first connection with a first network of a first subscriber identity module (SIM), or a second connection with a second network of a second SIM;
the WTRU further configured to perform one or more of: a first transmission to the first network or a second transmission to the second network; and
a transmitter configured to send, to the first network or second network, in response to a missed first TXOP or a missed second TXOP, an indication of adapted behavior of a Medium Access Control (MAC) layer interface.

11. The WTRU of claim 10 , wherein a receiver or transmitter chain is shared across the first network and the second network.

12. The WTRU of claim 11 , wherein the sharing of the receiver or transmitter chain is based on adapting one or more MAC counters or timers in response to the missed first TXOP or the missed second TXOP.

13. The WTRU of claim 10 , wherein the indication provides information indicating a type of adapted behavior.

14. The WTRU of claim 13 , wherein the type of adapted behavior comprises adapting one or more MAC counters in response to the missed first TXOP or the missed second TXOP, wherein the adapted one or more MAC counters are incremented to avoid declaring failure prematurely.

15. The WTRU of claim 13 , wherein the type of adapted behavior comprises:
adapting one or more MAC timers in response to the missed first TXOP or the missed second TXOP, wherein the adapted one or more MAC timers are extended to avoid declaring failure prematurely.

16. The WTRU of claim 13 , wherein the type of adapted behavior comprises:
delaying performing a random access resource selection procedure until after a backoff time, wherein the backoff time is same or greater than a duration of time that a transmitter chain is busy.

17. The WTRU of claim 10 , wherein the transmitter is further configured to send, to one or more upper layers, an indication of a transmission failure when a number of TXOP misses exceeds a threshold.

18. The WTRU of claim 10 , wherein the WTRU comprises a MAC layer comprising a common MAC layer interface and a dedicated MAC layer interface, wherein the dedicated MAC layer interface is associated with the first SIM or the second SIM and the common MAC layer interface is shared across both the first SIM and the second SIM.

19. The WTRU of claim 1 , wherein the transmitter is further configured to:
signal, to the first network, a first TX capability, or
signal, to the second network, a second TX capability;
wherein the first TX capability or the second TX capability indicate one or more of: a number of transmitters for transmission to the first network or the second network, an Uplink (UL) MIMO capability, an UL CA capability, an UL BWP operation capability, or a power budget allocated for transmission to the first network or second network.

20. A method for use in a wireless transmit/receive unit (WTRU), the method comprising:
receiving downlink information indicating one or more of: a first receive (RX) opportunity (RXOP) or a second RXOP;
receiving uplink information indicating one or more of: a first transmit (TX) opportunity (TXOP) or a second TXOP;
based on the downlink information or the uplink information, establishing one or more of: a first connection with a first network of a first subscriber identity module (SIM), or a second connection with a second network of a second SIM;
performing one or more of: a first reception from the first network, a first transmission to the first network, a second reception from the second network, or a second transmission to the second network; and
sending, to the first network or second network, in response to a missed first RXOP, a missed second RXOP, a missed first TXOP, or a missed second TXOP, an indication of adapted behavior of a Medium Access Control (MAC) layer interface.

Assignees

• Interdigital Patent Holdings Inc

Inventors

• Adjakple Pascal
• Murray Joseph
• Starsinic Michael
• Di Girolamo Rocco
• Chen Zhuo
• Ly Quang

Classifications

• H04W8/24

  Transfer of terminal data · CPC title

• H04W76/27

  Transitions between radio resource control [RRC] states · CPC title

• H04W76/25

  Maintenance of established connections · CPC title

• H04W76/20

  Manipulation of established connections · CPC title

• H04W76/15 Primary

  Setup of multiple wireless link connections · CPC title