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EP-4241486-B1 - SELECTIVE DEVICE SWITCHING OF FIFTH GENERATION (5G) MODE

EP4241486B1EP 4241486 B1EP4241486 B1EP 4241486B1EP-4241486-B1

Inventors

  • YANG, Jaehyeuk
  • XU, XIN
  • SHI, YONGSHENG

Dates

Publication Date
20260506
Application Date
20211202

Claims (13)

  1. A computing system-implemented method, the method being executed by a computing system within or associated with a device and comprising: determining (606) a status of an Internet Protocol Multimedia Subsystem, IMS, registration on the device; determining (608) an extent of cellular coverage for the device, said determining the extent of cellular coverage for the device comprising: determining whether or not cellular data is disabled, or determining whether or not Voice over New Radio, VoNR, or Video over New Radio, ViNR, is supported in cellular coverage; and selectively disabling (610) a Fifth Generation, 5G, mode of the device based on the status of the IMS registration or the extent of cellular coverage, characterized in that the computer-implemented method further comprises selectively enabling the 5G mode in response to: a level of battery on the device being above a threshold, or WiFi being unavailable while cellular data is on; and any of: the device being in an idle mode; a screen of the device being off; an LTE System Information Block 24, SIB24, being present; and the device refraining from foreground scanning of 5G cells while enabling the 5G mode.
  2. The computing system-implemented method of claim 1, wherein the 5G mode of the device comprises a 5G New Radio Standalone, NR SA, mode.
  3. The computing system-implemented method of claim 1, wherein the selectively disabling (610) comprises: disabling the 5G mode of the device in response to a Wireless Fidelity, Wi-Fi, connection on the device being available and the IMS being registered over a wireless network.
  4. The computing system-implemented method of claim 1, wherein the selectively disabling (610) comprises: disabling the 5G mode in response to the cellular coverage being disabled and VoNR or ViNR being unsupported on the device or on a network through which the device exchanges data.
  5. The computing system-implemented method of claim 1, wherein the selectively disabling (610) comprises: disabling the 5G mode in response to the IMS being registered over WiFi and the device currently participating in an active call session over a wireless network.
  6. The computing system-implemented method of claim 1, wherein the selectively disabling (610) comprises: disabling the 5G mode in response to: the device currently participating in an active call session, via Voice Over WiFi, VoWiFi; and the VoWiFi session being handed over to a Long-Term Evolution, LTE, mode.
  7. The computing system-implemented method of claim 1, wherein the selectively disabling (610) comprises: disabling the 5G mode in response to: the device currently participating in an active call session, via VoWiFi or via Voice Over LTE, VoLTE; and VoNR being unsupported by the cellular coverage, preferably, the computer-implemented method further comprises determining a presence of the active call session based on an IMS call setup being in progress.
  8. The computing system-implemented method of claim 1, wherein the device being in an idle mode is determined in response to a Radio Resource Control, RRC, connection being released by the LTE network.
  9. A computing system (600) within or associated with a device, the computing system (600) comprising: one or more processors (602); and a memory storing instructions that, when executed by the one or more processors (602), cause the computing system to: determine a status of an IMS registration on the device; determine an extent of cellular coverage for the device, said determining the extent of cellular coverage for the device comprising: determining whether or not cellular data is disabled, or determining whether or not VoNR, or ViNR is supported in cellular coverage; and selectively disable a 5G mode of the device based on the status of the IMS registration or the extent of cellular coverage, characterized in that the instructions, when executed by the one or more processors (602), further cause the computing system to selectively enable the 5G mode in response to: a level of battery on the device being above a threshold, or WiFi being unavailable while cellular data is on; and any of: the device being in an idle mode; a screen of the device being off; an LTE SIB24 being present; and the device refraining from foreground scanning of 5G cells while enabling the 5G mode.
  10. The computing system (600) of claim 9, wherein the selectively disabling comprises: disabling the 5G mode of the device in response to a Wi-Fi connection on the device being available and the IMS being registered over a wireless network.
  11. The computing system (600) of claim 9, wherein the selectively disabling comprises: disabling the 5G mode in response to the cellular coverage being disabled and Voice over VoNR being unsupported on the device or on a network through which the device exchanges data; disabling the 5G mode in response to the IMS being registered over WiFi and the device currently participating in an active call session over a wireless network; disabling the 5G mode in response to: the device currently participating in an active call session, via VoWiFi; and the VoWiFi session being handed over to a LTE mode; or disabling the 5G mode in response to: the device currently participating in an active call session, via VoWiFi or via VoLTE; and VoNR being unsupported by the cellular coverage.
  12. A non-transitory storage medium (604) storing instructions that, when executed by at least one processor (602) of a computing system (600) within or associated with a device, cause the computing system (600) to perform a method comprising: determining (606) a status of an IMS registration on the device; determining (608) an extent of cellular coverage for the device, said determining the extent of cellular coverage for the device comprising: determining whether or not cellular data is disabled, or determining whether or not VoNR, or ViNR is supported in cellular coverage; and selectively disabling (610) a 5G mode of the device based on the status of the IMS registration or the extent of cellular coverage, characterized in that the method further comprises selectively enabling the 5G mode in response to: a level of battery on the device being above a threshold, or WiFi being unavailable while cellular data is on; and any of: the device being in an idle mode; a screen of the device being off; an LTE SIB24 being present; and the device refraining from foreground scanning of 5G cells while enabling the 5G mode.
  13. The non-transitory storage medium of claim 12, wherein the selectively disabling comprises: disabling the 5G mode of the device in response to a Wi-Fi connection on the device being available and the IMS being registered over a wireless network; or disabling the 5G mode in response to the cellular coverage being disabled and VoNR being unsupported on the device or on a network through which the device exchanges data.

Description

Background A first release of a 5G (fifth-generation) standard, 5G New Radio (NR), was completed in mid-2018 and defined some of the physical layer 5G specifications. 5G NR leverages some features of the existing 4G (fourth-generation) LTE (Long Term Evolution) core network. Similar to LTE, NR relies on an IMS (Internet Protocol Multimedia Subsystem) platform which utilizes RTP (Real Time Protocol) to carry multimedia signals such as audio and video. Compared to the previous generation standard, 5G improves technical aspects, including increasing frequency range 1 (FR1), increasing frequency range 2 (FR2), also known as mmWave, increasing channel bandwidths for a single component carrier (CC), increasing a maximum number of permitted component carriers, increasing subcarrier spacing, increasing slot length, reducing latency, and deploying a common modulation scheme for both uplink and downlink. However, one drawback that may occur is call dropping during an attempted handover from a Voice Over LTE (VoLTE) or Voice over Wireless Fidelity (VoWiFi) to 5G NR. The call dropping may be attributed at least in part to dropping of RTP packets. For example, US patent publication No. 2020344630A1 discloses a method for managing new radio (NR) communication in an electronic device, including receiving, from a base station, configuration information for an event B1-NR measurement, indicating a trigger threshold value for triggering the electronic device to transmit a B1-NR measurement report, periodically monitoring at least one condition of the electronic device, upon receiving the configuration information, and restricting at least one of NR capability and NR measurements of the electronic device, when the monitored at least one condition of the electronic device is satisfied. Summary The invention is defined by the claims. A first aspect of the invention comprises a computing system - implemented method as set forth in claim 1. A second aspect of the invention comprises a computing system as set forth in claim 9. A third aspect of the invention comprises a non-transitory storage medium as set forth in claim 12. Some preferred embodiments are defined in the dependent claims. Various examples of the present disclosure can include computing systems, methods, and non-transitory computer readable media configured to execute instructions that, when executed by one or more processors, cause a computing system to determine a status of an Internet Protocol Multimedia Subsystem, IMS, registration on a device, determine an extent of cellular coverage for the device, and selectively disable a 5G mode of the device based on the status of the IMS registration or the extent of cellular coverage. Thereby, the determining the extent of cellular coverage for the device comprises determining whether or not cellular data is disabled, or determining whether or not Voice over New Radio, VoNR, or Video over New Radio, ViNR, is supported in cellular coverage.. The instructions that, when executed by one or more processors, further cause the computing system to selectively enable the 5G mode in response to: 1) a level of battery on the device being above a threshold or 2) WiFi being unavailable while cellular data is on, and any of 1) the device being in an idle mode, 2) a screen of the device being off, 3) a LTE System Information Block 24, SIB24, being present, and 4) the device refraining from foreground scanning of 5G cells while enabling the 5G mode. In some examples, the 5G mode of the device includes a 5G New Radio Standalone, NR SA, mode. In some examples, the selective disabling includes disabling the 5G mode of the device in response to a Wi-Fi connection on the device being available and the IMS being registered over a wireless network. In some examples, the selective disabling includes disabling the 5G mode in response to the cellular coverage being disabled and Voice over New Radio, VoNR, or Video over New Radio, ViNR, being unsupported on the device or on a network through which the device exchanges data. In some examples, the selective disabling includes disabling the 5G mode in response to the IMS being registered over WiFi and the device currently participating in an active call session over a wireless network. In some examples, the selective disabling includes disabling the 5G mode in response to the device currently participating in an active call session, via Voice Over WiFi, VoWiFi; and the VoWiFi session being handed over to a LTE mode. In some examples, the selective disabling includes disabling the 5G mode in response to the device currently participating in an active call session, via VoWiFi) or via Voice Over LTE, VoLTE; and VoNR being unsupported by the cellular coverage. In some examples, the instructions that, when executed by one or more processors, further cause the computing system to determine a presence of the active call session based on an IMS call setup being in progress. In some examples, the device bein