Abstract: Various embodiments of the present disclosure provide a method for random access. The method which may be performed by a terminal device comprises determining a scrambling configuration for uplink shared channel transmission to a network node in a two-step contention-free random access procedure. The method further comprises transmitting an uplink shared channel to the network node in the two-step contention-free random access procedure, according to the determined scrambling configuration. According to various embodiments of the present disclosure, the initialization of a scrambling sequence may be determined or configured for the uplink shared channel transmission in a two-step contention-free random access procedure in a flexible and efficient way, so that the performance of the random access procedure can be improved.

Abstract: The present disclosure described systems and methods for providing OTT services to a UE. An exemplary OTT-providing host computer includes a transceiver, a processor, and memory collective configured to provide the OTT service by initiating transmission of user data to the UE. To transmit the user data from the host computer to the wireless device, a network node sends a first control message for assigning a PDSCH, the first control message comprising a first MCS indication as described. The network node sends to the wireless device a second control message for assigning a PDSCH, the second control message comprising a second MCS indication as described. The network node transmits the user data thereafter.

Abstract: The present disclosure provides a method (400) in a network device. The method (400) includes: transmitting (410), to a terminal device, Downlink Control Information, DCI, addressed to a Random Access-Radio Network Temporary Identity, RA-RNTI, of the terminal device, the DCI containing an indication of a System Frame Number, SFN.

Abstract: A method in a terminal device. The method includes determining a DeModulation Reference Signal (DMRS) configuration for a Physical Uplink Shared Channel (PUSCH) and transmitting to a network device the PUSCH using the DMRS configuration along with a preamble, in a random access message.

Abstract: A method for synchronization in a wireless system. In the method, a physical broadcast channel (PBCH) includes one or more bits, wherein the one or more bits indicate additional system information when a frequency of the wireless system is within a frequency range up to a predefined frequency and indicate a location of a slot group in a synchronization signal burst set when the frequency of the wireless system is above the predefined frequency, and wherein the slot group comprises at least one synchronization signal block and the synchronization signal burst set includes the slot group.

Abstract: Various embodiments of the present disclosure provide a method for random access. The method which may be performed by a terminal device includes determining a random access occasion based at least in part on random access configuration information for a non-terrestrial network. The method further includes transmitting a preamble to a network node in the non-terrestrial network, according to the determined random access occasion.

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: A UE is provided with a dedicated preamble for use in a two-step random access procedure, as well as dedicated, contention-free PUSCH transmission resources for the PUSCH part of msgA. In one embodiment, the base station transmits a partial PUSCH msgA configuration to the UE using dedicated RRC signaling. In another embodiment, the base station transmits a resource index to the UE indicative of a dedicated PUSCH resource for a msgA transmission via dedicated RRC signaling.

Abstract: Various embodiments of the present disclosure provide a method for random access. The method which may be performed by a terminal device comprises determining a interlace configuration for uplink shared channel transmission to a network node in a two-step contention-free random access procedure. The method further comprises performing the uplink shared channel transmission to the network node in the two-step contention-free random access procedure, according to the determined interlace configuration. According to some embodiments of the present disclosure, the interlaced resource allocation for uplink shared channel transmission may be configured for a two-step contention-free random access procedure in a flexible and efficient way, so that the performance of the random access procedure can be improved.

Abstract: An IAB node performs a method for determining a periodicity of a SSB and/or a RMSI for use in an IAB backhaul link. The method may comprise one or more of: using a predetermined periodicity value; determining a periodicity value based on at least one different parameter; receiving a signaling message indicating a periodicity value and using the indicated periodicity value for the IAB backhaul link; and selecting a periodicity value from a plurality of permitted periodicity values.

Abstract: Methods, a terminal device and a base station for random access procedure are disclosed. According to an embodiment, the terminal device determines a frequency hopping configuration for transmission of one or more physical uplink shared channels (PUSCHs) in a request message for random access. The terminal device transmits the one or more PUSCHs in the request message based on the frequency hopping configuration. The request message at least comprises a physical random access channel (PRACH) preamble and the one or more PUSCHs.

Abstract: A method and a receiver device are disclosed for channel estimation of a broadcast channel. According to an embodiment, the receiver device determines a first channel estimation of demodulation reference signal (DMRS) from a transmitter device. The receiver device determines a second channel estimation of one or more synchronization related reference signals from the transmitter device. The receiver device determines a final channel estimation of a broadcast channel from the transmitter device based at least on the first and second channel estimations.

Abstract: The disclosure provides a wireless communication device and a method and apparatus for processing voice data. The wireless communication device includes: a radio frequency chip and a computing power chip. The radio frequency chip includes: a first processor and a radio frequency transceiver. The radio frequency chip and the computing power chip are connected via a preset communication interface, so that the first processor communicates with a second processor in the computing power chip, wherein the second processor is configured to: perform a processing of decoding data received by the radio frequency transceiver and encoding data to be sent for the radio frequency transceiver to send. The computing power chip is provided in the wireless communication device, and a codec with a good processing effect is supported by the second processor, thus the effect of the encoding or decoding processing may be improved.

Abstract: Operation in unlicensed spectrum requires Clear Channel Assessment (CCA), where a transmitter must monitor the channel before transmitting, to ensure it is free. An exception is a brief gap that allows for Rx/Tx turn-around, so that an ACK can be transmitted following reception, without performing a new CCA. NR introduces a 2-step Random Access (RA) procedure, where MsgA includes both a PRACH and a PUSCH transmission. To minimize CCA delays in unlicensed spectrum, only those RACH opportunities (ROs) and PUSCH opportunities (POs) that result in a very small delay between the PRACH and PUSCH transmissions of MsgA should be employed. RO configurations are defined for LTE 4-step RA. Embodiments provides methods for selecting which of these be may be shared for 2-step RA, for selecting which should be used in case of collisions, for selecting ROs and POs when the configurations are not shared, and for communicating RO configurations to UEs.

Abstract: Various embodiments of the present disclosure provide a method for random access. The method which may be performed by a terminal device comprises determining whether the terminal device is capable of reporting channel state information to a network node in a random access procedure. In accordance with an exemplary embodiment, the method further comprises transmitting an uplink message to the network node in the random access procedure to indicate a result of the determination.

Abstract: A method performed by a wireless device for determining an identity of the wireless device, MsgB RNTI, in a wireless communications network during a random access procedure is provided. The wireless device transmits a random access preamble on a RACH at a random access occasion. It also transmits a message on a PUSCH that corresponds to the random access preamble. Further, the wireless device determines an MsgB RNTI as the sum of a first identity, RA-RNTI, and an offset that is an integer greater than 1, wherein the RA-RNTI is based on a sum comprising terms corresponding to at least the index of a first OFDM symbol, the index of a frequency resource, and the index of a first time slot that identifies the time/frequency resources of the random access occasion.

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: 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: Various embodiments of the present disclosure provide a method for random access. The method which may be performed by a network node comprises determining configuration information for a contention free preamble in a random access occasion, based at least in part on mapping between synchronization signal and physical broadcast channel blocks and preambles for two-step random access in the random access occasion. The contention free preamble is applicable for the two-step random access. The method further comprises transmitting the configuration information to a terminal device. According to some embodiments of the present disclosure, an association between signaling transmissions in a two-step random access procedure can be configured flexibly and efficiently.

Abstract: 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.