Abstract: Various embodiments of the present disclosure provide methods and apparatuses for determining radio network temporary identifier (RNTI) in a two-step random access procedure. A method of a terminal device, comprising: determining a request message for random access, wherein the request message comprises a preamble and a physical uplink shared channel, PUSCH, message and the PUSCH message is determined based on a first radio network temporary identity, RNTI; transmitting the request message; and obtaining a response message for random access based on a second RNTI, wherein the first RNTI and the second RNTI are the same or different.

Abstract: Various embodiments of the present disclosure provide a method for TBoMS transmission. The method which may be performed by a terminal device comprises encoding with low density parity check (LDPC) base graph on each code block (CB) of a Transport Block over Multiple Slots (TboMS), wherein the TBoMS comprises multiple slots; and performing rate matching on the LDPC code for each of the multiple slots of the TBoMS, wherein a time unit of the rate matching is per slot in the TBoMS, and wherein the TBoMS comprises one or more CBs.

Abstract: A system and method for providing time domain allocations in a communication system. In an embodiment, an apparatus operable in a communication system and including processing circuitry is configured to receive an indication of a time domain allocation in downlink control information associated with a radio network temporary identifier (“RNTI”) identifying the apparatus, and employ the time domain allocation associated with the RNTI for transmissions associated with the apparatus. In another embodiment, an apparatus operable in a communication system and including processing circuitry is configured to associate a time domain allocation with a RNTI identifying a user equipment, and provide an indication of the time domain allocation in downlink control information to allow the user equipment to employ the time domain allocation associated with the RNTI for transmissions associated therewith.

Abstract: Methods, a base station, and a terminal device for a two-step random access procedure are disclosed. The base station transmits a signalling message indicating a waveform of a physical uplink shared channel (PUSCH) without including a waveform of a preamble which is to be used for a message A in the two-step random access procedure, through an air interface. The base station receives the message A using the waveform of the PUSCH through the air interface in the two-step random access procedure.

Abstract: Systems and methods are disclosed for frequency hopping schemes that are compatible with joint channel estimation. In one embodiment, a method implemented in a User Equipment (UE) comprises determining a value of a hopping index for a first set of N consecutive slots, wherein the N is an integer greater than 1, and after the N consecutive slots, incrementing the value of the hopping index for a second set of N consecutive slots. The method further comprises, for an uplink slot within the second set of N consecutive slots, determining a set of physical resource blocks (PRBs) in which to transmit a physical channel from a set of frequency offsets according to the value of the hopping index for the second set of slots and transmitting the physical uplink channel in the selected set of PRBs in the uplink slot.

Abstract: The present disclosure generally relates to the field of wireless communication and, more particularly, to techniques for enabling uplink scheduling. According to one aspect, there is provided a method, implemented in a wireless device, the method comprising determining whether an uplink transmission is for Physical Uplink Shared Channel (PUSCH) repetition or Transport Block processing over Multi-Slot PUSCH (TBoMS) based on a field in a Time Domain Resource Allocation (TDRA) list, and transmitting the uplink transmission in accordance with the determination.

Abstract: The embodiments herein relate to timing advance offset for uplink/downlink switching in New Radio (NR). In one embodiment, there proposes a method in a wireless communication device, comprising: determining a timing advance (TA) offset for uplink/downlink switching, wherein the TA offset is at least based on the time offset requirement for uplink/downlink switching in different scenarios used in communication between the wireless communication device and a network node; applying the determined TA offset in the uplink communication from the wireless communication device to the network node. With embodiments herein, uplink/downlink switching time for NR is defined.

Abstract: According to some embodiments, a method performed by a wireless device for transmitting multiple layers of an uplink physical channel comprises transmitting to a network node an indication of a capability to operate according to a first mode of operation and a second mode of operation. In the first mode a codebook subset comprises precoding matrices with at most one non-zero elements per column, and in the second mode the codebook subset comprises precoding matrices with at most two non-zero elements per column. The codebook subset is in a codebook for use when transform precoding of a physical channel is disabled. The method further comprises receiving a configuration from the network node for a selected mode of operation, and transmitting the physical channel using transform precoding and, at least when transmitting with two layers, using the codebook subset comprising the precoding matrices of the selected mode.

Abstract: The present disclosure is related to a UE, a network node, and methods for uplink transmission with multiple codewords. A method at a UE for UL or DL transmission comprises: receiving, from a network node, a first message for scheduling UL or DL transmission with one or multiple codewords; and performing, with the network node, the UL or DL transmission at least partially based on the first message.

Abstract: The present disclosure is related to a UE, a network node, and methods for uplink transmission with extended uplink reference signal resources. A method at a UE for uplink transmission comprises: receiving, from one or more network nodes, at least one first message indicating at least one of uplink reference signal resources that are configured at the UE and/or indicating an antenna port configuration with up to more than 4 DMRS ports, the number of the configured uplink reference signal resources being up to more than 4 and/or the number of uplink reference signal ports per uplink reference signal resource being up to more than 4; and performing, with at least one of the network nodes, uplink transmission at least partially based on the at least one uplink reference signal resource that is indicated and/or the antenna port configuration that is indicated.

Abstract: The present disclosure is related to a UE, a network node, and methods for uplink transmission with multiple codewords. The method at a UE for uplink transmission with multiple codewords comprises: performing, with one or more network nodes, an uplink transmission with multiple codewords. The method at a network node for uplink transmission with multiple codewords from a UE comprises: performing, with the UE, an uplink transmission with multiple codewords.

Abstract: According to some embodiments, a method is performed by a network node for semi-persistently scheduled transmission. pattern for multiple transport block (TB) transmission. The method comprises generating a time domain pattern information indicating a time domain pattern for a multiple transport block (TB) transmission. The method further comprises sending the time domain pattern information to a wireless device. The time domain pattern information may include a bitmap to indicate the time domain pattern for the semi-persistently scheduled data transmission. Each data transmission may occur periodically according to a previously 10 provided configuration.

Abstract: A method for communications is proposed. The method may comprise receiving a signaling message from a network node. The signaling message may indicate a subcarrier spacing numerology for a synchronization signal transmission. The method may further comprise determining the subcarrier spacing numerology, based at least in part on the signaling message.

Abstract: The embodiments herein relate to time domain resource allocation for PUSCH transmission. In one embodiment, there proposes a method in a wireless communication device for Random Access (RA), comprising: transmitting a preamble on Physical Random Access Channel (PRACH); receiving a Random Access Response (RAR) message; transmitting, on Physical Uplink Shared Channel (PUSCH), a message for terminal identification (Msg3), wherein the time resource allocation of Msg3 is different than the time resource allocation of other message to be transmitted on the PUSCH (normal PUSCH). The embodiments herein can support flexible time resource allocation configuration for Msg3, and at the same time, the signaling overhead in RAR/DCI for indicating the time resource allocation of PUSCH carrying Msg3 can be reduced.

Abstract: Methods and apparatuses are disclosed for PUSCH resource selection in 2-step random access (RA). In one embodiment, a wireless device is configured to receive a two-step RA configuration having: a first resource allocation for a PUSCH transmission of a first message, msgA, of the two-step RA procedure, the first resource allocation for the PUSCH transmission of the msgA being associated with a first set of preambles; and a second resource allocation for the PUSCH transmission of the msgA associated with a second set of preambles; select one of the first and second resource allocation and the associated one of the first and second set of preambles based on the two-step RA configuration and a payload size of the PUSCH transmission of the msgA; and transmit the PUSCH transmission of the msgA using the selected one of the first and second resource allocation.

Abstract: Embodiments herein relate to, for example, a method performed by a UE for handling communication in a wireless communications network. The UE determines a first preamble from a group of preambles out of one or more groups of preambles, wherein the group of preambles is selected based on whether one or more conditions, associated with the group, are fulfilled or not. The UE transmit a PRACH transmission using the determined first preamble.

Abstract: Embodiments include methods for user equipment (UE) random access to a cell in a wireless network. Such methods include selecting one of a plurality of available random-access preambles and mapping the selected random-access preamble to one of a plurality of available physical uplink shared channel (PUSCH) resource units (PRUs) based on a mapping constraint. In the mapping constraint, one or more of the available PRUs are not used for the mapping and an integer number of the available random-access preambles are mapped to each of the available PRUs that are used for the mapping. Such methods also include transmitting the selected random-access preamble on a random access channel (RACH) and transmitting a data message on the PRU mapped to the selected random-access preamble. Other embodiments include complementary methods for a network node, as well as UEs and network nodes configured to perform such methods.

Abstract: Methods and apparatuses for random access. A method performed by a terminal device comprises determining a random access procedure to be performed, the random access procedure being one of a two-step random access procedure and a four-step random access procedure, and transmitting a request message for random access in the determined random access procedure.

Abstract: The present disclosure is related to a UE, a network node, and methods for feature based random access. A method at a UE for performing a random access (RA) procedure with a network node comprises: transmitting, to the network node, a first message comprising a physical random access channel (PRACH) preamble to initiate the RA procedure: receiving, from the network node, a second message in response to the first message: determining whether a feature is to be performed or not at least partially based on at least one of the second message, a configuration at the UE, and a capability of the UE; and transmitting, to the network node, a third message with or without the feature performed depending on a result of the determination.

Abstract: According to a surveying and mapping instrument and method for a wide-area spatial channel map through multi-unmanned aerial vehicle (UAV) cooperation, a measurement signal emission unit generates and emits a measurement signal, a measurement signal multi-UAV cooperative receiving unit receives the measurement signal transmitted through a wireless channel, extracts an effective multipath component from the measurement signal, and frames the effective multipath component and corresponding time and location information for storage, and transmits stored channel data to a channel data fusion processing unit offline, and the channel data fusion processing unit fuses the channel data in terms of space, time, and frequency dimensions, and completes missing channel data to construct a complete wide-area spatial channel map.