Patent classifications
H04L5/0012
METHODS AND APPARATUS FOR SUB-BAND-BASED PDCCH HOPPING IN WIRELESS COMMUNICATION
An approach for wireless communications to support reduced capability New Radio (NR) with larger available control resource sets (CORESET) bandwidths. Examples include a frequency-hopping CORESET with a predefined hopping pattern configured by higher layers, such as RRC signaling or MAC Control Element (CE) on a per CORESET per UE or purely per UE basis. Frequency hopping patterns for CORESET transmissions include the use of PRBs for CORESETs that are mirrored with respect to the central frequency of active bandwidth part (BWP), and the use of a random parameter to step through the frequency pattern. The sub-band location of the physical downlink shared channel that is scheduled by the physical downlink control channel may be indicated using the DCI format, or may be based on a last slot for PDCCH transmission.
METHOD AND APPARATUS FOR RANDOM ACCESS
A method for random access performed by a terminal device comprises determining an association between random access resource and shared channel resource for a request message for a random access procedure, based at least on whether a frequency hopping is enabled for the shared channel resource, or when a frequency hopping is enabled for the shared channel resource; and transmitting, to a network node, the request message according to the association. An association between random access resource and shared channel resource of signaling transmissions in a random access procedure can be configured flexibly and efficiently.
CLEAR CHANNEL ASSESSMENT (CCA) ENABLED NARROWBAND (NB) COMMUNICATIONS
This disclosure provides systems, methods and apparatus for clear channel assessment (CCA) enabled narrowband (NB) communications. In some implementations, a device is configured to associate with an NB channel (such as a Bluetooth channel), perform a CCA to assess whether the NB channel is clear, and transmit on the NB channel when clear. If the NB channel is not clear, the device may prevent transmitting on the NB channel. The device may prevent avoiding the NB channel after the first time that the NB channel is not clear. If the NB channel remains not clear (such as over a number of CCAs for the NB channel), the device may avoid the NB channel by removing the NB channel for FH for an amount of time. In some implementations, the device may be configured to perform frame based equipment (FBE) CCAs for one or more NB channels.
Techniques for radio link failure recovery during bandwidth part hopping
Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive a bandwidth part (BWP) hopping configuration indicating a set of hops for a BWP of the UE. The UE may identify a radio link failure (RLF) during a time period configured by the set of hops. The UE may disable the BWP hopping configuration based at least in part on identifying the RLF. The UE may initiate a random access procedure on a BWP that is associated with the random access procedure. Numerous other aspects are described.
Method for transmitting and receiving feedback information, and terminal therefor
A method by which a terminal transmits feedback information comprises the steps of: determining, in predetermined resource units for receiving the broadcast information in a broadcast resource region, whether broadcast information collides; selecting a first shared resource in a shared resource region corresponding to a first broadcast resource in which the conflict occurs in the broadcast resource region, on the basis of a pre-defined mapping rule of the broadcast resource region and the shared resource region; and transmitting, in the selected first shared resource, feedback information including information on the occurrence of the collision, wherein the broadcast resource region is a resource region, which is defined so as to transmit or receive the broadcast information, and the shared resource region can be determined as a resource region shared between a plurality of terminals. The UE is capable of communicating with at least one of another UE, a UE related to an autonomous driving vehicle, a base station or a network.
User terminal and radio communication method
A terminal is disclosed including a processor that, if group hopping of a sequence used in an uplink control channel is enabled, determines a group number based on a slot number and a frequency hopping index; and a transmitter that transmits the uplink control channel, to which the sequence corresponding to the group number is applied. In other aspects, a radio communication method and a base station are also disclosed.
Terminal, radio communication method, base station, and system
A terminal is disclosed including a transmitter that transmits a demodulation reference signal for an uplink control channel; a receiver that receives: frequency hopping information indicating that frequency hopping of the uplink control channel is enabled, and information regarding a resource block index corresponding to a first frequency hop and a resource block index corresponding to a second frequency hop; and a processor that determines a sequence of the demodulation reference signal based on the frequency hopping information regardless of whether a distance between the first frequency hop and the second frequency hop is zero. In other aspects, a radio communication method, a base station, and a system are also disclosed.
METHOD FOR DETERMINING UPLINK RESOURCE AND COMMUNICATIONS DEVICE
A method for determining an uplink resource and a communications device are provided. The method includes determining a target uplink channel based on at least one target resource. The target resource includes a resource pool, a subchannel, a Bandwidth Part (BWP), or a carrier.
METHOD AND DEVICE FOR SOUNDING REFERENCE SIGNAL FLEXIBILITY ENHANCEMENT
Presented are systems and methods for sounding reference signal (SRS) flexibility enhancement. A wireless communication device may receive a configuration of a plurality of SRS parameter sets from a wireless communication node. The plurality of SRS parameter sets may each be associated with a corresponding downlink control information (DCI) related information. The wireless communication device may receive a DCI from the wireless communication node. For a SRS transmission, the wireless communication device may identify a first SRS parameter set associated with first DCI related information identified by the DCI, from the plurality of SRS parameter sets.
Beam Determination Procedures in Radio Systems
An example method includes receiving, by a wireless device, downlink control information (DCI). The DCI may schedule transport blocks (TBs) via physical downlink shared channels (PDSCHs) at a first slot and a second slot. The DCI may also indicate a first transmission configuration indicator (TCI) state for reception of the TBs. The method may also include receiving, based on a second TCI state, a first TB, of the TBs, at the first slot. The method may also include receiving, based on the first TCI state, the second TB, of the TBs, at the second slot in response to a time difference between the first slot and the second slot being larger than a time gap.