A semiconductor integrated circuit for a radio communication terminal sequentially uses a plurality of frequency channels by instructions from a hopping frequency decision unit to receive packet data by a reception unit. When the integrated circuit cannot detect the head of the packet data in reception operations, the integrated circuit cannot receive packet data should be received originally then assumes that the received packet data is a packet error. And the integrated circuit calculates packet error rates for each frequency channel on the basis of the number of times of reception operations performed for each frequency channel and of the number of times of packet errors to estimate channel qualities by using the packet error rates.

A semiconductor integrated circuit for a radio communication terminal sequentially uses a plurality of frequency channels by instructions from a hopping frequency decision unit to receive packet data by a reception unit. When the integrated circuit cannot detect the head of the packet data in reception operations, the integrated circuit cannot receive packet data should be received originally then assumes that the received packet data is a packet error. And the integrated circuit calculates packet error rates for each frequency channel on the basis of the number of times of reception operations performed for each frequency channel and of the number of times of packet errors to estimate channel qualities by using the packet error rates.

A communication method between a master and a device, the master transmits in a subcycle a received condition message (RCM) for an immediately prior subcycle, wherein the RCM is an ACK when a transmission from the device in the preceding subcycle was correctly received and the RCM is a NACK when a transmission from the device in the preceding subcycle was not correctly received, comprising: including in each transmitted condition message a current priority data acknowledgement flag (CPDAF), the CPDAF being transmitted set in each condition message for each subcycle of an offset cycle after the master correctly received in a current cycle a priority data message, the offset cycle being defined as the second and subsequent subcycles of a current cycle and the first subcycle of a next cycle, the CPDAF being transmitted as cleared otherwise.

A communication method between a master and a device, the master transmits in a subcycle a received condition message (RCM) for an immediately prior subcycle, wherein the RCM is an ACK when a transmission from the device in the preceding subcycle was correctly received and the RCM is a NACK when a transmission from the device in the preceding subcycle was not correctly received, comprising: including in each transmitted condition message a current priority data acknowledgement flag (CPDAF), the CPDAF being transmitted set in each condition message for each subcycle of an offset cycle after the master correctly received in a current cycle a priority data message, the offset cycle being defined as the second and subsequent subcycles of a current cycle and the first subcycle of a next cycle, the CPDAF being transmitted as cleared otherwise.

An electronic device and method for wireless communication, and a computer-readable storage medium; the electronic device comprises: a processing circuit, which is configured to: acquire radio resource control (RRC) signaling from a base station, the RRC signaling comprising configuration information used by a user equipment (UE) for a frequency hopping operation during broadband uplink transmission on an unlicensed frequency band, and the UE switching between multiple sub-bands in the broadband by using the frequency hopping operation so as to execute uplink transmission; and acquire downlink control information from the base station, the downlink control information comprising activation information for the frequency hopping operation.

A system and method for a tamper-resistant network is disclosed. The system includes a primary network hub (PNH) having a PNH transceiver and a PNH microcontroller. The PNH microcontroller has long range spread spectrum frequency hopping (SSFH) firmware, a plurality of frequency hopping sequences, and PNH tamper firmware. The system also includes a peripheral device (PD) having a PD transceiver, a PD tamper circuit, and a PD microcontroller. The PD microcontroller includes the long range SSFH firmware, the plurality of frequency hopping sequences, and PD tamper firmware. The PD communicates to the PNH that it is compromised, and the PNH deactivates the PD and an associated frequency hopping signal.

A system and method for a tamper-resistant network is disclosed. The system includes a primary network hub (PNH) having a PNH transceiver and a PNH microcontroller. The PNH microcontroller has long range spread spectrum frequency hopping (SSFH) firmware, a plurality of frequency hopping sequences, and PNH tamper firmware. The system also includes a peripheral device (PD) having a PD transceiver, a PD tamper circuit, and a PD microcontroller. The PD microcontroller includes the long range SSFH firmware, the plurality of frequency hopping sequences, and PD tamper firmware. The PD communicates to the PNH that it is compromised, and the PNH deactivates the PD and an associated frequency hopping signal.

Techniques providing opportunistic frequency switching for frame based equipment (FBE), such as may be configured to minimize opportunistic frequency switching delay in FBE new radio (NR) unlicensed (NR-U) networks and/or to provide frequency diversity FBE access based on offset sequences of medium sensing occasions for the carrier frequencies are disclosed. Within the FBE mode network, a base station may configure a pattern of sensing locations in each frame for each frequency transmission unit of the plurality of frequency transmission units, wherein an inter-unit delay of sensing locations between a first frequency transmission unit and a next adjacent frequency transmission unit and between a last frequency transmission unit and the first frequency transmission unit is a fixed duration. Opportunistic frequency switching of embodiments may utilize the medium sensing locations for opportunistically switching between a sequence of the frequency transmission units for implementing frequency diversity FBE access.

Techniques providing opportunistic frequency switching for frame based equipment (FBE), such as may be configured to minimize opportunistic frequency switching delay in FBE new radio (NR) unlicensed (NR-U) networks and/or to provide frequency diversity FBE access based on offset sequences of medium sensing occasions for the carrier frequencies are disclosed. Within the FBE mode network, a base station may configure a pattern of sensing locations in each frame for each frequency transmission unit of the plurality of frequency transmission units, wherein an inter-unit delay of sensing locations between a first frequency transmission unit and a next adjacent frequency transmission unit and between a last frequency transmission unit and the first frequency transmission unit is a fixed duration. Opportunistic frequency switching of embodiments may utilize the medium sensing locations for opportunistically switching between a sequence of the frequency transmission units for implementing frequency diversity FBE access.

A method and an apparatus are provided for transmitting and receiving uplink data in a wireless communication system. A method includes transmitting first information on hopping, the first information on hopping indicating that one of inter-subframe hopping and intra-subframe hopping is configured; transmitting second information on hopping; determining whether mirroring is applied or not based on a packet transmission number, if the second information on hopping indicates that a predefined hopping pattern is enabled; identifying a resource for receiving the uplink data based on the determination as to whether the mirroring is applied or not; and receiving the uplink data using the identified resource.