Patent classifications
H04W74/004
TERMINAL
A terminal including: a control unit configured to determine a position of a PUSCH resource to be used in a first step in a two step random access procedure based on a relative position with respect to a position of a preamble resource; and a transmission unit configured to transmit a message of the first step using the preamble resource and the PUSCH resource.
TECHNIQUES FOR CONFIGURING RANDOM ACCESS OCCASIONS IN WIRELESS COMMUNICATIONS
Aspects described herein relate to configuring and selecting preamble and payload occasions for performing two-step random access procedures. Configurations on preamble occasions, payload occasions, association pattern between the occasions and synchronization signal block (SSB) beams, and the rules for selecting preamble and payload occasions for random access message transmission can be determined by the network and signaled to user equipment (UE). Based on the configurations and rules, UE can measure the link level quality and select possible preamble and payload occasions for one or more SSB beams achieving a threshold signal quality. Sets of one or more preamble occasions and one or more payload occasions can be further determined based on whether the preamble and payload occasion(s) can achieve a threshold transmission latency. The one or more preamble occasions and one or more payload occasions can be used to transmit random access messages in the two-step random access procedure.
Method and apparatus for transmitting and receiving signal in wireless communication system
A method and apparatus for transmitting and receiving a signal in a wireless communication system, according to an embodiment of the present invention, comprise: iteratively mapping a PUCCH sequence to each of resource blocks (RBs) within an interlace; and transmitting a PUCCH on the interlace, wherein a phase shift (PS) value of the PUCCH sequence may be changed on the basis of an RB index of each of the RBs.
Random Access Procedures Using Repetition
Wireless communications may be used for repetition of one or more transmissions. At least some wireless devices may use and/or require different quantities of repetitions of one or more transmissions based on one or more factors such as received signal strength and/or other channel condition(s). The quantity of repetitions may be less than or equal to a maximum quantity of repetitions that may be indicated by a base station.
BEAM MANAGEMENT FOR DIRECT AND INDIRECT LINKS
Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a base station may receive a random access channel (RACH) message. The base station may determine, based at least in part on the RACH message, whether the RACH message was transmitted directly to the base station by a user equipment (UE) or whether the RACH message was relayed from the UE to the base station via a millimeter wave repeater. The base station may perform a beam management procedure based at least in part on the determination. Numerous other aspects are provided.
Methods and Apparatuses for COT Sharing in Unlicensed Spectrum
A user equipment (UE) may transmit a configured-grant uplink control information (CG-UCI) to a base station during a channel occupancy time (COT) initiated by the UE in a shared spectrum, the CG-UCI comprising COT sharing information, the COT sharing information indicating, at least, an index value corresponding to a combination of: an indication of an offset to a beginning of a downlink transmission opportunity during the COT; an indication of a duration of the downlink transmission opportunity during the COT; and an indication of a channel access priority class (CAPC) value used by the UE to initiate the COT. The base station may transmit a downlink transmission to the UE within the downlink transmission opportunity and in accordance with the COT sharing information in the transmitted CG-UCI. Apparatuses are also disclosed.
RANDOM ACCESS IN COMMUNICATION SYSTEM
Embodiments of the present disclosure relate to random access in a communication system. A first device determines whether a contention-free random access resource is allocated from a second device for a first random access type. In accordance with a determination that the contention-free random access resource is allocated, the first device compares a target transport block size corresponding to the contention-free random access resource with a first transport block size configured for a first group of preambles available for the first random access type, and performs random access to the second device based on a result of the comparison.
UPLINK CONTROL RECEIVING METHOD, UPLINK CONTROL SENDING METHOD, BASE STATION, USER EQUIPMENT, AND STORAGE MEDIUM
Provided are an uplink control receiving method, an uplink control sending method, a base station, a user equipment, and a storage medium. The method includes: specifying a beam direction used for sending an uplink control in an orthogonal frequency division multiplexing (OFDM) symbol in which the uplink control is located in a transmission unit, and receiving the uplink control according to the specified beam direction used by the uplink control; wherein the specifying the beam direction used for sending the uplink control in the OFDM symbol in which the uplink control is located in the transmission unit comprises: using by default all or at least one of beam directions used for transmitting uplink data in a previous transmission unit as the beam direction used for transmitting the uplink control, wherein the previous transmission unit refers to a transmission unit before the transmission unit.
TERMINAL AND COMMUNICATION METHOD
A terminal includes a reception unit configured to receive control information including information for allocating a plurality of uplink transmissions, from a base station, a control unit configured to identify a parameter applied to the plurality of uplinks, based on the control information, and a transmission unit configured to transmit the plurality of uplinks to the base station by applying the identified parameter to the plurality of uplinks.
METHOD FOR PROCESSING RANDOM ACCESS PROCEDURE, AND TERMINAL DEVICE
The present application relates to a method for processing a random access procedure and a terminal device. The method is applied to a terminal device. In a non-contention random access procedure satisfying a predetermined condition, upon receipt of a random access response (RAR), if there is no data to be uplink transmitted, then no uplink transmission is performed. The embodiments of the present application are able to reduce unnecessary uplink transmission interference without affecting a random access procedure.