Patent classifications
H04W28/0236
Efficient transmission of a response signal for a random access preamble transmitted from legacy or extension carrier capable devices
In order to provide a transmission device and transmission method with which a response signal for random access preamble transmitted from a preamble transmission device is efficiently transmitted, setting unit in base station sets a first resource candidate group, which enables terminal capable of receiving a latch response transmitted by demodulation reference signal (DMRS) transmission to be selected, and a second resource candidate group, which enables terminal incapable of receiving a latch response transmitted by DMRS transmission but capable of receiving a latch response transmitted by cell-specific reference signal (CRS) transmission to be selected. Control unit selects DMRS transmission as the latch response transmission method when a resource in which latch preamble has been received is included in the first candidate group, but selects CRS transmission as the latch response transmission method when the resource is included in the second resource candidate group.
MULTI-CHANNEL TIME-DIVISION MULTIPLEXING ACCESS METHODS AND SYSTEMS
Devices, systems and methods for high-utilization low-latency multi-channel time-division multiplexing access (TDMA) are described. One example method for wireless communication includes performing, in a first time interval of a time-division multiple access (TDMA) slot, a transmission of a first data unit over a first logical channel of the plurality of logical channels, refraining from transmitting, subsequent to a completion of the transmission of the first data unit, for a second time interval immediately after the first time interval, and performing (N−1) transmissions in (N−1) time intervals for each data unit of (N−1) subsequent data units in the TDMA slot, such that a transmission of an nth data unit of the (N−1) subsequent data units is performed over an nth logical channel of the plurality of logical channels.
TECHNIQUES FOR OPERATING IN ACCORDANCE WITH A DUAL NETWORKING MODE FOR STEERING, SWITCHING AND SPLITTING TRAFFIC
Methods, systems, and devices for wireless communications are described. A user equipment (UE) may monitor one or more first conditions pertaining to non-cellular communications between the UE and a non-cellular network while the UE is operating in a dual networking mode for steering, switching, or splitting traffic (e.g., an access traffic steering, switching, and splitting (ATSSS) mode) between the non-cellular network and a cellular network. The UE may predict an availability status of at least the non-cellular network based on at least one of the one or more first conditions. In some cases, the UE may determine whether to change dual networking modes based on the availability status and may communicate in accordance with the same or a different dual networking mode using at least one of the cellular network, the non-cellular network, or a combination thereof based on the prediction.
WIRELESS SPECTRUM SHARING DATABASE
A spectrum management database and server provides measurement and modeling of RF (Radio Frequency) cloud interference in near real-time results for efficient utilization of the precious spectrum. This shared spectrum defines a scarce resource shared among all wireless devices of the universe in frequency, time, and space. Near real-time forecasting of the RF cloud interference is beneficial in pursuit of a path to the optimal utilization of spectrum and a liberated spectrum management. A spectrum management server gathers interference information including bandwidth ranges and locations from a plurality of deployed devices, receives requests for bandwidth, and satisfies the request by allocating a non-interfering bandwidth at a requesting location based on the stored indications
Method and system for multi-channel beaconing in a time slotted channel hopping network
A method for multi-channel beaconing in a network comprising for each network node of a plurality of network nodes: determining a link or a pseudo random sequence of links that identifies when and on what channel the network node is scheduled to transmit beacons; receiving the schedule for when and on which channel the network node should listen for beacons from one or more neighbor nodes of the plurality of network nodes; transmitting beacons based the established schedule; and listening for beacons from one or more neighbor nodes based on the schedule received from these neighbor nodes.
Communication link selection for non-RSRP based association in wireless industrial internet-of-things
Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a network node may receive an indication of a first set of parameters that corresponds to a direct communication link between an industrial internet-of-things (IIoT) device and a first controller; receive an indication of a second set of parameters that corresponds to an indirect communication link between the IIoT device and the first controller through a second controller; and schedule a communication on at least one of the direct communication link or the indirect communication link based at least in part on the first set of parameters and the second set of parameters. Numerous other aspects are provided.
Interference detection, signaling, and mitigation techniques for low latency transmissions
Generally, the described techniques provide for a base station transmitting an indication of a set of one or more available channels to a user equipment (UE). The base station may transmit to the UE a first downlink burst using a first channel and a first frame period. In some cases, the base station may detect interference associated with the first downlink burst, for example, by performing a listen-before-talk (LBT) procedure or through an interference management resources (IMR) procedure in which the base station transmits reference signal signals to the UE that the UE may use to return a report on measured interference. If the base station detects interference, the base station may transmit to the UE an instruction to switch to a second channel and a second frame period, where the second channel may be selected from the set of one or more available channels.
Multi-hop communication techniques
Systems and methods configured for supporting multi-hop communications are described. Embodiments provide unavailable packet signaling by a base station aiding a multi-hop communication link. For example, the base station may transmit a predetermined “unavailable” message (e.g., an explicit and affirmatively transmitted message having predetermined content and/or format transmitted according to the schedule of the failed message) when an uplink data transmission in a multi-hop communication link fails or is otherwise currently unavailable. The unavailable packet signaling may be provided in association with a semi-persistent scheduling (SPS) and control channel scheduled retransmission technique, such as for supporting Internet of things (IoT), such as industrial Internet of things (IIoT), traffic. Other aspects and features are also claimed and described.
Geographic routing based on 5G network slice availability
Various arrangements for performing navigation based on characteristics of a cellular network are provided. A quality of experience (QoE) level required for a wireless service to be performed for a networked device may be determined. A current location and a destination for a vehicle may be determined. A wireless network coverage area map may be accessed that maps network performance characteristics for the cellular network across a geographic region. A navigation route from the current location to the destination based on the wireless network coverage area map and the determined QoE may be determined. The determined navigational route may be output to a navigation system.
Traffic distribution control for wireless hybrid access networks
An apparatus which is able to communicate based on at least two communication methods, wherein each communication method is configured to communicate with access networks by using at least one subflow, acquires (S41) information from at least one of the communication methods for at least one of the subflows and provides (S42) the information to a subflow control entity at a higher layer of the apparatus. Based on the information, the subflow control entity evaluates (S43) whether a change will occur in the at least one of the subflows. In case the change is evaluated to occur in the at least one of the subflows, the subflow control entity evaluates (S44) when the change will occur, and evaluates (S45) whether the change evaluated to occur impacts a specific requirement of delivering packets by using the at least one of the subflows. In case the change is evaluated to impact the specific requirement, the subflow control entity changes (S46) usage of the subflows for delivering packets.