21 results about "Automatic repeat request" patented technology

A wireless transmit / receive unit (WTRU) is configured to receive configuration information. The configuration information comprises an indication of a sidelink hybrid automatic repeat request (HARQ) round trip time (RTT) timer and a sidelink HARQ retransmission timer. The WTRU is configured to start the HARQ RTT timer based on whether the WTRU is configured with resources for a physical uplink control channel (PUCCH) for reporting sidelink HARQ feedback. The WTRU is configured to start the sidelink HARQ RTT timer after an end of a corresponding PUCCH transmission that includes SL HARQ feedback, on a condition that the WTRU is configured with resources for the PUCCH transmission. The WTRU is configured to start the sidelink HARQ RTT timer following a reception of a downlink control information that schedules a sidelink transmission, on a condition that the WTRU is not configured with PUCCH resources.

Provided is an information processing device that includes an acquisition unit that acquires information about sidelink communication. The information processing device further includes a determination unit that determines whether to enable feedback related to a data automatic repeat request in the sidelink communication based on the information about the sidelink communication.

Systems and methods for providing a seamless automatic repeat request (ARQ) stream are provided. The system can include a plurality of streaming servers, a load balancer, and an ARQ streaming service.

According to an embodiment of the disclosure, a method of operating a transmitting device in a wireless communication system includes obtaining a plurality of radio link control (RLC) data protocol data units (PDUs) in an RLC entity; generating an automatic repeat request (ARQ) PDU corresponding to an RLC data PDU set including at least one of the plurality of RLC data PDUs based on a resource allocation in the RLC entity; transmitting, from a medium access control (MAC) layer, a first MAC PDU generated based on the RLC data PDU set and the ARQ PDU to a receiving device through a lower layer; and receiving a status PDU associated with the RLC data PDU set when a certain condition is satisfied, wherein the ARQ PDU includes information for processing an operation related to the RLC data PDU set.

A configuration method and apparatus for a control channel, and a communications device are provided. When a first control channel schedules a plurality of data channels, the method includes: establishing a second control channel; and performing hybrid automatic repeat request acknowledgement codebook processing on at least one of the data channels based on the second control channel.

A method for determining sidelink feedback information and a communication device are disclosed. The method includes: determining sidelink hybrid automatic repeat request SL HARQ feedback information based on a target physical sidelink feedback channel PSFCH resource set associated with a target uplink channel, where the target PSFCH resource set is determined based on a target time interval, where the target time interval is a spacing between the target uplink channel and a PSFCH.

Procedures, methods, apparatuses, systems, devices, and computer program products are provided for dual phase hybrid automatic repeat request (HARQ) feedback. Wireless transmit / receive unit (WTRU) methods and systems include receiving, from a wireless network, first control information and determining that the first control information indicates an initial transmission opportunity in a downlink direction for a HARQ process. The methods and systems further include determining that a previous transport block (TB) associated with the HARQ process was not successfully decoded, and based on the determining, generating and transmitting second control information to the wireless network indicating that the TB was not successfully decoded.

The present disclosure relates to a 5G or 6G communication system for supporting higher data transmission rates. According to an embodiment of the present disclosure, a method performed by a terminal in a communication system is provided. The method performed by the terminal comprises the steps of: receiving, from a base station, logical channel configuration information that includes first information about an available hybrid automatic repeat request (HARQ) mode corresponding to a logical channel, and serving cell configuration information that includes second information about an available HARQ mode for each HARQ process ID; performing a logical channel prioritization procedure on the basis of the first information and the second information; and transmitting uplink data to the base station on the basis of the result of the logical channel prioritization procedure.

Procedures, methods, apparatuses, systems, devices, and computer program products are provided for dual phase hybrid automatic repeat request (HARQ) feedback. Wireless transmit / receive unit (WTRU) methods and systems include receiving, from a wireless network, first control information and determining that the first control information indicates an initial transmission opportunity in a downlink direction for a HARQ process. The methods and systems further include determining that a previous transport block (TB) associated with the HARQ process was not successfully decoded, and based on the determining, generating and transmitting second control information to the wireless network indicating that the TB was not successfully decoded.

The disclosure relates to a 5th generation (5G) or 6th generation (6G) communication system for supporting a higher data transmission rate. A method and device for transmitting hybrid automatic repeat request acknowledgement (HARQ-ACK) information are provided. The method includes receiving, from a base station (BS), downlink control information (DCI) scheduling one or more multicast physical downlink shared channels (PDSCHs), wherein the DCI includes a downlink assignment indication (DAI) associated with the one or more multicast PDSCHs, receiving, from the BS, the one or more multicast PDSCHs based on the DCI, in case that a number of hybrid automatic repeat request-acknowledgement (HARQ-ACK) bits for the one or more multicast PDSCHs is one, transmitting, to the BS, a first physical uplink control channel (PUCCH) resource including a NACK (negative acknowledgement) value, and in case that the number of HARQ-ACK bits for the one or more multicast PDSCHs is more than one, transmitting, to the BS, a second PUCCH resource among configured PUCCH resources according to the number of the HARQ-ACK bits.

Various embodiments of the present disclosure provide a method for multicast communication. The method, which can be implemented by a terminal device, comprises receiving, from a network node, a first downlink channel comprising a first downlink assignment index. The first downlink channel is associated with a first service of the terminal device. The method further comprises determining, according to an association between the first downlink channel and the first service, that the first downlink assignment index is for the first service. According to various embodiments of the present disclosure, hybrid automatic repeat request feedback can be efficiently and flexibly implemented for different services (e.g. multicast and unicast services).

This disclosure provides methods, devices and systems for generating packet preambles. Some implementations more specifically relate to preamble designs for special cases such as, for example, full-bandwidth multi-user multiple-input multiple-output (MU-MIMO), single-user (SU) preamble puncturing, hybrid automatic repeat request (HARQ), and multi-AP coordination. Multi-AP coordination may refer to coordinated beamforming (CoBF), joint transmission (JT), or coordinated orthogonal frequency division multiple access (C-OFDMA). Additionally, or alternatively, some implementations more specifically relate to preamble designs that accommodate signal fields of different cases.

Disclosed is a base station in a wireless communication system. Each base station in wireless communication comprises: a communication module; and a processor. The processor generates a hybrid automatic repeat request (HARQ)-ACK codebook comprising one or more bits and indicating whether or not reception of a channel or signal is successful, and transmits the HARQ-ACK codebook to the base station.

Example embodiments of the present disclosure relate to dynamic (de)activation of hybrid automatic repeat request (HARQ). A method includes receiving, from a second apparatus, at least two sets of parameters, each set of parameters corresponding to a particular state of a hybrid error correction and retransmission process; switching, in response to at least one criterion being met, the state of the hybrid error correction and retransmission process from one particular state to another particular state; and applying the set of parameters corresponding to the state to which the first apparatus switches.

In one aspect, a method of wireless communication includes receiving, by a user equipment (UE), a sidelink transmission in a first slot of an unlicensed channel. The method also includes performing, by the UE, a Channel Access (CA) operation for a hybrid automatic repeat request (HARQ) feedback transmission in a second slot for the sidelink transmission, where the second slot is one of multiple slots configured for HARQ feedback for the sidelink transmission. The method further includes transmitting, by the UE, HARQ feedback transmission in the second slot based on successfully performing the CA operation. Other aspects and features are also claimed and described.

Apparatuses, methods, and systems are disclosed for transmitting a prioritized transport block. One method includes determining, at a user equipment, a first priority corresponding to a first transport block associated with a first hybrid automatic repeat request process pending for retransmission on a configured uplink grant resource. The method includes determining a second priority corresponding to an initial transmission on the configured uplink grant resource of a second transport block associated with a second hybrid automatic repeat request process. The method includes selecting the second hybrid automatic repeat request process and transmitting the initial transmission of the second transport block on the configured uplink grant resource before retransmitting the first transport block.

This invention provides a method for processing hybrid automatic repeat request feedback and a user equipment thereof. The method includes: receiving hybrid automatic repeat request configuration information in an Internet of Things (IoT) network via the user equipment, wherein the user equipment is configured with one or more hybrid automatic repeat request processes, and wherein the hybrid automatic repeat request configuration information includes one or more IoT hybrid automatic repeat request information fields; determining the enabled / disabled state of hybrid automatic repeat request feedback for each hybrid automatic repeat request process based on the hybrid automatic repeat request configuration information; and executing a hybrid automatic repeat request feedback enabling / disabling process for each hybrid automatic repeat request process based on the hybrid automatic repeat request configuration information.

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive, from a base station, an indication to multiplex a deferred hybrid automatic repeat request (HARQ) feedback for a semi-persistent scheduling (SPS) downlink communication with a physical uplink shared channel (PUSCH) communication. The UE may transmit, to the base station, the deferred HARQ feedback for the SPS downlink communication multiplexed with the PUSCH communication. Numerous other aspects are described.

Example embodiments of the present disclosure are directed to dynamic (de) activation of Hybrid Automatic Repeat reQuest (HARQ). A method comprises receiving, from a second apparatus, at least two sets of parameters, each set of parameters corresponding to a specific state of a hybrid error correction and retransmission process; in response to at least one criterion is met, switching the state of the hybrid error correction and retransmission process from one specific state to another specific state; and applying the set of parameters corresponding to the state to which the first apparatus switched to.