Provided are an information transmission and receiving method and device, a storage medium and an electronic apparatus. The information transmission method includes: transmitting at least two pieces of the following information in a multiplexing manner on a physical channel: channel state information (CSI), first control information or data information. The first control information includes at least one of: hybrid automatic retransmission request acknowledgement (HARQ-ACK) information or scheduling request (SR) information.

An operation method of a first terminal in a communication system is provided. The method includes transmitting first SCI to a second terminal, the first SCI including one or more information elements among information indicating time resource(s) for sidelink communication, information indicating frequency resource(s) for the sidelink communication, information indicating a periodicity of physical resources for the sidelink communication, and information indicating an MCS for the sidelink communication. Second SCI is transmitted to the second terminal, the second SCI including information for an HARQ feedback operation and information indicating an NDI. The method further includes performing the sidelink communication with the second terminal based on the first SCI and the second SCI associated with the first SCI.

The disclosure provides a method and a device in a User Equipment (UE) and a base station supporting random access. The UE first transmits a first radio signal, and then receives a second radio signal. A first bit block is used for generating the first radio signal, the first bit block includes a positive integer number of bits, the first bit block carries a first identifier and a first data block, the first bit block lacks a field used for indicating RRC connection request cause information, a field used for indicating RRC connection reestablishment request cause information or a field used for indicating RRC connection resume request cause information compared with a Msg3, the first data block includes a positive integer number of higher-layer bits, the second radio signal carries a second identifier. The first identifier is equal to the second identifier.

Methods and apparatuses are provided in a wireless communication system. Configuration information regarding a hybrid automatic repeat and request-acknowledgement (HARQ-ACK) retransmission is received from a base station (BS) via higher layer signaling. Downlink control information (DCI) is received from the BS. An offset for the HARQ-ACK retransmission is identified as a value of a modulation and coding scheme (MCS) field included in the DCI, based on the configuration information. The HARQ-ACK retransmission is performed on a slot identified based on the offset.

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a transmitter device may transmit, to a receiver device, an initial message associated with a communication using a first code rate. The transmitter device may receive, from the receiver device, first feedback information indicating that the communication was not successfully decoded by the receiver device. The transmitter device may transmit, to the receiver device based at least in part on the reception of the first feedback information, one or more retransmissions associated with the communication including a first retransmission, wherein the first retransmission includes a first number of bits to lower an effective code rate of the communication to a second code rate. The transmitter device may receive, from the receiver device, second feedback information indicating that the communication was successfully decoded by the receiver device. Numerous other aspects are described.

The present disclosure relates to enabling and disabling of codewords in multi-subframe grants. In particular, dynamic and subframe based enabling/disabling of codewords is enabled even if other control parameters including the resource allocation is performed for multiple subframes. For instance, signal from a scheduling entity to a scheduled entity comprises control information including the resource grant common for multiple subframes and a plurality of codewords for each subframe, and a codeword indication indicating enabling or disabling of one or more codewords for each of the multiple subframes. For each subframe it is determined whether a codeword from the plurality of codewords in said subframes is enabled or disabled according to the codeword indication and/or which codeword is enabled or disabled. The indication of enabling and disabling may alternatively be done by using modulation and coding scheme indicator values which are not associated with a particular modulation and coding scheme.

A wireless device receives a radio resource control message comprising an aperiodic sounding reference signal (SRS) subframe parameter. A downlink control information is received. The downlink control information indicates uplink resources in a plurality of scheduled consecutive subframes for transmission of transport blocks by the wireless device and triggers an SRS transmission in a subframe of the plurality of scheduled consecutive subframes. The SRS is transmitted in the subframe. A position of the subframe in the plurality of scheduled consecutive subframes is determined based on the aperiodic SRS subframe parameter.

Disclosed in the present application are a data transmission method and a communication device. The method includes: obtaining transmission parameters for transmitting a transport block, wherein the transmission parameters comprise Modulation and Coding Scheme (MCS), a Physical Resource Block (PRB) number, and PRB resource overhead information; determining a Transport Block Size (TBS) for the transport block according to the transmission parameters; and transmitting the transport block or receiving the transport block according to the TBS; wherein the PRB resource overhead information is determined based on at least one of: Demodulation Reference Signal (DMRS), Channel State Information-Reference Signals (CSI-RS), and control channel information.

Methods and apparatus for communicating and utilizing persistent allocation of resources are described herein. A base station may allocate persistent resources to a client station, and may associate the client station or persistent resource allocation with a particular shared NACK channel. The base station may monitor the NACK channel for a NACK indicating a map error. The base station may monitor the resource allocation to implicitly determine a map error. The base station may resend one or more persistent resource allocation information elements in response to the NACK or implicit error determination. A client station having a persistent resource allocation may monitor persistent resource allocation information elements in map messages and/or may indicate failure to receive a persistent resource allocation information element in a NACK message on a shared NACK channel.

A base station may transmit one or more configuration parameters for a cell. The one or more configuration parameters may indicate a periodic resource configuration. The periodic resource configuration may be activatable by predetermined values of: a hybrid automatic repeat request process identifier (HARQ ID) field of a first downlink control information (DCI) format; and a redundancy version (RV) field of the first DCI format. The base station may transmit a DCI based on a second DCI format without at least one of the HARQ ID field or the RV field. The base station may activate the periodic resource configuration based on: a size of the HARQ ID field of the DCI and/or the RV field of the DCI being zero; and the periodic resource configuration being in an inactive state.