A communication apparatus comprises a radio transceiver and a modem processor. The radio transceiver is configured to transmit or receive wireless signals in a wireless network. The modem processor is coupled to the radio transceiver and configured to perform operations comprising: connecting to a first network device via a first communication link in a first frequency band; predicting a handover according to at least one of at least one measurement result or location information; connecting to a second network device via a second communication link in a second frequency band, after predicting the handover; performing the handover from the first network device to a third network device, to stop connecting to the first network device and to connect to the third network device via the first communication link in the first frequency band; and stopping connecting to the second network device, after performing the handover.

Methods and devices related to a cellular signal mesh network are described. In an example, a method can include determining, via a processing resource of a first computing device, whether a cellular signal of the first computing device is below a threshold cellular signal, transmitting from the first computing device to a second computing device first signaling including data representing a request for operational data of the second computing device in response to determining that the cellular signal of the first computing device is below the threshold cellular signal, receiving from the second computing device second signaling comprising the operational data of the second computing device, and transmitting from the first computing device to the second computing device third signaling including data representing at least one of: a voice call, a video call, or a message in response to receiving the second signaling comprising the operational data.

Methods, systems, and devices for wireless communications are described. A user equipment (UE) may establish multiple wireless connections, such as a wireless connection for a first subscriber identity module (SIM) and a wireless connection for a second SIM, that share time-frequency resources. The UE may communicate data packets with another device during a communication session on the wireless connection for the first SIM. The UE may determine to pause the communication session for a duration based on receiving an indication from the other UE or based on a user input to pause communication. The UE may communicate data packets on the wireless connection for the second SIM for at least a portion of the duration using the shared time-frequency resources based on pausing the communication session.

The present invention discloses methods and systems for selecting at least one SIM card for data communication at a wireless communication device which is capable of housing a plurality of SIM cards. When a switching condition is satisfied, the wireless communication device selects a second SIM card group, and disconnects one or more connections established using any non-second group SIM card. Non-second group SIM cards are SIM cards that are not in the second SIM card group. A selected SIM card from the second SIM card group is then used for data communications. The steps are repeated until (i) the switching condition is no longer satisfied, (ii) no more SIM cards selected from the second SIM card group can be used for data communications or (iii) no more connection is made using non-second group SIM cards.

A method for communication processing, applied to a terminal device having installed therein multiple subscriber identity module (SIM) cards including a data primary card and a data secondary card each supporting a New Radio (NR) communication function, includes: conducting statistics on cell information of cells supporting the NR communication function; and determining, according to the cell information, whether a cell to which the data secondary card is registered is a cell supporting the NR communication function, and in response to the cell to which the data secondary card is registered being the cell supporting the NR communication function, enabling the NR communication function of the data secondary card and controlling the data secondary card to perform cell measurement.

A registration method, includes: obtaining, in a process in which a preset application downloads data through a communication radio frequency link, a remaining online duration of an electronic device registered in the Internet protocol multimedia subsystem; obtaining a data demand of the preset application in a case that the remaining online duration is greater than a first preset duration and less than a second preset duration, where the first preset duration is greater than or equal to a duration required for the electronic device to re-register in the Internet protocol multimedia subsystem; and performing, in a case that the data demand is less than a preset data demand, re-registration in the Internet protocol multimedia subsystem through the communication radio frequency link.

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.

The present disclosure relates to methods and apparatuses. According to some embodiments of the disclosure, a method includes: selecting a first subscriber identity module from a plurality of subscriber identity modules of a user equipment; and transmitting a resume request message via the first subscriber identity module, wherein the resume request message comprises first radio access network (RAN)-based notification area (RNA) update information associated with the first subscriber identity module and second RNA update information associated with a second subscriber identity module of the plurality of subscriber identity modules.

Wireless communications systems and methods related to downlink performance of a UE in a wireless communication network are provided. For example, method of wireless communication performed by a user equipment (UE), the method comprising determining a level of interference to a reference signal received from a serving base station operating a first radio access technology (RAT) and switching, based on the determined level of interference, a radio access technology mode preference of the UE to a second RAT, the second RAT being different from the first RAT. Other features are also claimed and described.

User circuitry within a wireless User Equipment (“UE”) that may utilize multiple subscriber identity module (“SIM”) profiles activates two or more SIM profiles to be active simultaneously. The user circuitry transfers service requests for wireless data services using the SIM profiles to network circuitry. The wireless data services may have different slice service types over different operating frequency bands of different target cells. The network circuitry wirelessly exchanges data with wireless access nodes associated with the target cells over the operating frequency bands to establish packet data unit sessions comprising the slice service types using the respective SIM profiles such that multiple packet data unit sessions are active using multiple SIM profiles simultaneously. Various applications may be mapped to the appropriate SIM profile and packet data unit session based on the respective provisioned slice characteristics matching the respective application requirements.