A frequency hopping device is co-located with a set of frequency hopping devices, and includes a controller that is configured to identify from a plurality of channels, first and second sets of channels that are available and unavailable for an adaptive frequency hopping (AFH) operation associated with the frequency hopping device, respectively. The controller is further configured to assign a lowest priority level to each channel of the second set of channels, an intermediate priority level to each channel of the first set of channels that is to be utilized by the set of frequency hopping devices, and a highest priority level to each remaining channel of the first set of channels. Further, the controller is configured to generate an AFH map based on a number of channels that have the highest priority level, and execute the AFH operation based on the AFH map.

A frequency hopping configuration method can be applied to a base station. The base station can configure at least one bandwidth part BWP for a terminal. The method can include: configuring a frequency hopping rule for each configured BWP; when the terminal is instructed to perform uplink transmission hopping, determining, according to the configured hopping rule, a hopping rule corresponding to a BWP currently being used by the terminal; and sending the corresponding hopping rule to the terminal, such that the terminal determines a second frequency domain resource position after frequency hopping has been performed according to the corresponding frequency hopping rule and a first frequency domain resource position prior to performing frequency hopping, and performs uplink transmission at the second frequency domain resource position.

Methods, apparatus, and processor-readable storage media for generating a frequency hopping arrangement are provided herein. An example computer-implemented method includes determining a starting frequency channel for a frequency hopping arrangement to be used in a communication session by a group of devices; calculating a frequency channel step value based at least in part on a predetermined required minimum number of frequency channels; and selecting the frequency channel values to be used in the communication session by iterating through frequency channel values for the useable frequency channels at intervals of a random frequency channel selection offset value until a number of frequency channel values equal to the frequency channel step value are selected.

A system and method is provided for improving signal quality in communications among fully wireless systems including a host device in wireless communication with a primary accessory which further wirelessly communicates with a secondary accessory. The host device generates information for use by the primary accessory in determining which channels have interference and should be avoided. The information may include an adaptive frequency hopping (AFH) channel map for communications between the host and the primary device, from which the primary device can infer which frequency bands have interference and generate a second AFH map for communications between the primary accessory and the secondary accessory accordingly. In other examples the information includes the second AFH map generated by the host, for example, based on an out-of-band scan. In further examples, the information includes an indication of channels used by recognized nearby access points.

A communications node operable to communicate with another communications node over a communications channel having a plurality of frequency resources, the communications node includes data defining a division of the communications channel into a plurality of contiguous sub-bands each having N frequency resources, wherein each frequency resource in a sub-band has a corresponding frequency resource in each of the other sub-bands, data defining an initial allocation of the frequency resources, a resource determination module operable to apply a frequency shift to the initially allocated frequency resources in accordance with a frequency hopping sequence to determine frequency resources to use for communicating information with the other communications node, wherein the frequency shift applied moves the initially allocated frequency resources to corresponding frequency resources in another sub-band, a transceiver for communicating information with the other communications node using the determined frequency resource.

A novel and useful acknowledgement and adaptive frequency hopping mechanism for use in wireless communication systems such as IO-Link Wireless. One or two additional acknowledgement bits are added to packet transmissions. One is a current acknowledgment bit which indicates whether a packet was successfully received anytime during the current cycle. The second bit is a previous acknowledgment bit which indicates whether packets were received successfully anytime during the previous cycle. An adaptive hopping table is constructed using a greedy algorithm which chooses frequencies with the best PER for transmission of higher priority packets, while equalizing the PER products across cycles. A last resort frequency mechanism further improves transmission success by switching to a better performing channel for the last subcycle when previous attempts to transmit a high priority packet have failed.

The present application relates to wireless communications suitable for smart manufacturing and industrial automation. In particular, the application proposes a wireless communication device (UE) and a network device (BS), in particular suitable for cyclic communication. The BS is configured to provide a first information defining a hopping sequence to a UE, and to provide a second information to the UE defining when the hopping sequence should be repeated, in particular periodically repeated. The UE is accordingly configured to receive the first information from the BS, and to receive the second information from the BS. The hopping sequence specifies at least two spatial resources and/or at least two radio resources, which the UE is configured to use for transmissions to and/or from the BS.

Embodiments provide a transmission method of wireless transmission of data within a communication system (e.g. a sensor network or telemetry system). The system includes a step of transmitting the data while using at least two time hopping patterns and/or frequency hopping patterns, a second pattern of the at least two patterns being a time- and/or frequency-shifted version of a first pattern of the at least two patterns.

A system and method is provided for improving signal quality in communications among fully wireless systems including a host device in wireless communication with a primary accessory which further wirelessly communicates with a secondary accessory. The host device generates information for use by the primary accessory in determining which channels have interference and should be avoided. The information may include an adaptive frequency hopping (AFH) channel map for communications between the host and the primary device, from which the primary device can infer which frequency bands have interference and generate a second AFH map for communications between the primary accessory and the secondary accessory accordingly. In other examples the information includes the second AFH map generated by the host, for example, based on an out-of-band scan. In further examples, the information includes an indication of channels used by recognized nearby access points.

A wireless communication device as an embodiment of the present invention is a wireless communication device for performing wireless communications with communication partners while switching channels to be used for each time slot, and includes a storage, an updater, a determinator, and a communicator. The storage stores pre-generated scheduling data indicating channels that can be used in each time slot. The updater determines whether or not each channel included in the scheduling data is usable, and registers the channel determined as unusable on a blacklist. The determinator determines the channel to be used in each time slot on the basis of the scheduling data and the blacklist. The communicator performs wireless communications with a communication partner by using the channel determined in each time slot.