DYNAMIC UPLINK TX DC SUB-CARRIER LOCATION REPORTING

    公开(公告)号:WO2022082615A1

    公开(公告)日:2022-04-28

    申请号:PCT/CN2020/122870

    申请日:2020-10-22

    Applicant: APPLE INC.

    Abstract: Methods for wireless communications by user equipment (UE) are described. Reporting UL Tx DC sub-carrier location information may include decoding a radio resource control (RRC) message received from a base station. The RRC message may comprise a configuration for dynamically reporting uplink (UL) transmit (Tx) direct current (DC) sub-carrier location information. A change associated with at least one previous UL Tx DC sub-carrier location may be determined to have occurred, thereby creating at least one new UL Tx DC sub-carrier location. In response to determining the change, a medium access control (MAC) control element (MAC CE) may be encoded for transmission to the base station. The MAC CE may include information corresponding to the at least one new UL Tx DC sub-carrier location.

    DYNAMIC UPLINK TX DC SUB-CARRIER LOCATION REPORTING

    公开(公告)号:WO2022082615A8

    公开(公告)日:2022-04-28

    申请号:PCT/CN2020/122870

    申请日:2020-10-22

    Applicant: APPLE INC.

    Abstract: Methods for wireless communications by user equipment (UE) are described. Reporting UL Tx DC sub-carrier location information may include decoding a radio resource control (RRC) message received from a base station. The RRC message may comprise a configuration for dynamically reporting uplink (UL) transmit (Tx) direct current (DC) sub-carrier location information. A change associated with at least one previous UL Tx DC sub-carrier location may be determined to have occurred, thereby creating at least one new UL Tx DC sub-carrier location. In response to determining the change, a medium access control (MAC) control element (MAC CE) may be encoded for transmission to the base station. The MAC CE may include information corresponding to the at least one new UL Tx DC sub-carrier location.

    METHODS FOR MITIGATING COEXISTENCE OF UNCOORDINATED WIRELESS SYSTEMS VIA SIDELINK, NON-TRANSITORY COMPUTER-READABLE MEDIUM AND USER EQUIPMENT

    公开(公告)号:EP4340523A1

    公开(公告)日:2024-03-20

    申请号:EP23196473.5

    申请日:2023-09-11

    Applicant: Apple Inc.

    Abstract: User equipment may transmit and receive wireless signals to and from communication networks. However, in close proximity, transmission signals from a first user equipment may interfere with wireless signals received by a second user equipment. In certain instances, the user equipment may establish a session via peer-to-peer technologies and coordinate timing for communication with the networks. For example, the user equipment may establish a sidelink having a frequency different from a frequency used for communication with the networks. The user equipment may prioritize communication to a first communication network over a second communications network or vice versa. The user equipment may also designate a network connector and relay communication with the networks through the network connector. Additionally or alternatively, the user equipment may share the task of determining a global position. Accordingly, the user equipment may reduce or eliminate signal interference and preserve battery power.

    UE SIGNAL TO INTERFERENCE POWER RATIO DETECTION FOR NETWORK SCHEDULING ASSISTANCE

    公开(公告)号:EP4280482A2

    公开(公告)日:2023-11-22

    申请号:EP23200684.1

    申请日:2022-05-13

    Applicant: Apple Inc.

    Abstract: Embodiments disclosed herein relate to techniques for measuring and/or detecting a signal-to-interference ratio (SIR) of a received signal at a user equipment (UE). The received signal may include a desired signal, co-channel interference, adjacent channel interference, and an in-band blocker. The UE may filter (e.g., remove) the various interferences and in-band blocker. The UE may determine or measure a power (or Received Signal Strength Indicator (RSSI)) of the desired signal and a power (or RSSI) of the co-channel interference separately because the desired signal and the co-channel interference overlap in frequency. To do so, the UE may determine a total power of the received signal including the desired signal and co-channel interference. The UE may receive the desired signal again while an uplink transmission is deactivated (and thus without the interference). The UE may then calculate the SIR based on the total power and the power of the desired signal.

    SYSTEMS AND METHODS FOR DE-CORRELATING CODED SIGNALS IN DUAL PORT TRANSMISSIONS

    公开(公告)号:EP4156561A1

    公开(公告)日:2023-03-29

    申请号:EP22176442.6

    申请日:2022-05-31

    Applicant: Apple Inc.

    Abstract: User equipment (UE) applies a first code division multiplex access (CDMA) code to a baseband signal to generate a first signal, and a second CDMA code to the baseband signal to generate a second signal. The UE then transmits the first signal to a receiving device via a first antenna, and the second signal to the receiving device via a second antenna. The receiving device receives the first and second signals as a combined signal at an antenna, and extracts the first signal from the combined signal using the first CDMA code, and extracts the second signal from the combined signal using the second CDMA code. The CDMA codes may be real-valued or complex-valued. In some embodiments, the UE may separate the baseband signals into first and second portions, and transmit the first portion as part of the first signal and the second portion as part of the second signal.

    SYSTEMS AND METHODS FOR BROADCAST SIGNAL UTILIZATION TO IMPROVE MOBILE BROADBAND SERVICES

    公开(公告)号:EP4503738A1

    公开(公告)日:2025-02-05

    申请号:EP24190095.0

    申请日:2024-07-22

    Applicant: Apple Inc.

    Abstract: A broadcast service network (separate from a cellular network) includes broadcast service signal (BSS) nodes that broadcast signals to receivers of user equipment (UE). The BSS may provide broadcast service information to user equipment, such as the emergency notifications, even when the user equipment is out of range of the cellular network. Further, the broadcast service signals may provide information that improves the user equipment's search and access time for connecting to the cellular network (e.g., a cellular service station) and/or that assists the user equipment in locating a nearby region of cellular network coverage. In addition, the BSS may be wake-up signals configured to activate the receiver when the receiver is in a sleep or inactive mode. In some embodiments, the BSS may be pointer signals configured to direct the user equipment to a broadcast service channel to receive the broadcast service information.

    SYSTEMS AND METHODS FOR SUPPORTING EVOLVING BAND REGULATIONS

    公开(公告)号:EP4311285A1

    公开(公告)日:2024-01-24

    申请号:EP23200044.8

    申请日:2023-03-29

    Applicant: Apple Inc.

    Abstract: A base station sends system information to user equipment based on the user equipment detecting network coverage provided by the base station. The system information may include one or more network signaling flags indicative of a legacy regulation and an updated regulation (or a legacy version of a regulation and an updated version of the regulation) for operating on a frequency band. The user equipment transmits an indication to the base station as to whether it supports the legacy regulation and/or the updated regulation. The base station configures uplink and/or downlink resources on the frequency band for the user equipment based on the regulation indicated. The user equipment and the base station then communicate using the configured resources on the frequency band.

    UE SIGNAL TO INTERFERENCE POWER RATIO DETECTION FOR NETWORK SCHEDULING ASSISTANCE

    公开(公告)号:EP4280482A3

    公开(公告)日:2024-01-24

    申请号:EP23200684.1

    申请日:2022-05-13

    Applicant: Apple Inc.

    Abstract: Embodiments disclosed herein relate to techniques for measuring and/or detecting a signal-to-interference ratio (SIR) of a received signal at a user equipment (UE). The received signal may include a desired signal, co-channel interference, adjacent channel interference, and an in-band blocker. The UE may filter (e.g., remove) the various interferences and in-band blocker. The UE may determine or measure a power (or Received Signal Strength Indicator (RSSI)) of the desired signal and a power (or RSSI) of the co-channel interference separately because the desired signal and the co-channel interference overlap in frequency. To do so, the UE may determine a total power of the received signal including the desired signal and co-channel interference. The UE may receive the desired signal again while an uplink transmission is deactivated (and thus without the interference). The UE may then calculate the SIR based on the total power and the power of the desired signal.

    SYSTEMS AND METHODS FOR SUPPORTING EVOLVING BAND REGULATIONS

    公开(公告)号:EP4266722A1

    公开(公告)日:2023-10-25

    申请号:EP23165053.2

    申请日:2023-03-29

    Applicant: Apple Inc.

    Abstract: A base station sends system information to user equipment based on the user equipment detecting network coverage provided by the base station. The system information may include one or more network signaling flags indicative of a legacy regulation and an updated regulation (or a legacy version of a regulation and an updated version of the regulation) for operating on a frequency band. The user equipment transmits an indication to the base station as to whether it supports the legacy regulation and/or the updated regulation. The base station configures uplink and/or downlink resources on the frequency band for the user equipment based on the regulation indicated. The user equipment and the base station then communicate using the configured resources on the frequency band.

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