A method and an apparatus for uplink transmission in a communication system. An operation method of a terminal includes: receiving, from a base station, first SFI information indicating n flexible symbol(s); receiving, from the base station, second SFI information re-indicating m symbol(s) of the n flexible symbol(s) as uplink (UL) symbol(s); and transmitting an SRS to the base station through the m symbol(s) re-indicated as a UL symbol among the n flexible symbol(s) indicated as a flexible symbol. Therefore, performance of the communication system can be improved.

A wireless communication system is provided. The wireless communication system includes a first cell configured to communicate with a second cell and a terminal. The first cell includes a processor configured to control the first cell to: select one of a plurality of scheduling modes related to rate matching of physical downlink shared channels (PDSCHs) based on control information exchanged with the second cell; and transmit a first PDSCH to the terminal according to the selected scheduling mode while the second cell transmits a second PDSCH to the terminal according to the selected mode. The terminal is configured to perform processing on the first PDSCH and the second PDSCH based on the selected scheduling mode.

For multiplexing control information in a physical uplink data channel, a user equipment (UE) includes receiving a configuration for a first set of values and receiving a downlink control information (DCI) format scheduling a transmission of a physical uplink shared data channel (PUSCH) over a set of resource elements (REs) and including a field providing an index. The method further includes determining a first value from the first set of values based on the index, determining a first subset of REs from the set of REs, for multiplexing first uplink control information (UCI), based on the first value, and transmitting the first UCI in the PUSCH.

Methods, systems, and devices for wireless communications are described. An access point (AP) may transmit, to a second AP and during a first portion of a transmission opportunity (TxOP), a request to participate in a multi-user (MU) transmission. The AP may receive, from the second AP and during the first portion of the TxOP, an indication of intent to participate in the MU transmission during the second portion of the TxOP, the indication of intent including a resource request of the second AP for participation in the MU transmission. The AP may transmit, during an initial period of the second portion of the TxOP, a trigger signal to the second AP indicating a set of one or more resources for the second AP during the MU transmission. The AP may participate, in conjunction with the second AP and during the second portion of the TxOP, in the MU transmission.

The present disclosure relates to a mobile terminal, a system and respective methods. The user equipment receives plural PDCCHs from each of plural TRPs within a single TTI, and decodes plural DCIs respectively carried on the received plural PDCCHs from each of the plural TRPs. All of the decoded plural DCIs from each of the plural TRPs are respectively scheduling plural PDSCH receptions or plural PUSCH transmissions on different ones of the plural TRPs. And all of the plural PDSCH receptions or plural PUSCH transmission are scheduled such that one of the decoded plural DCIs from each of the plural TRPs is scheduling a same one PDSCH reception or a same one PUSCH transmission on a same one of the plural TRPs. The user equipment receives or transmits same data in the respectively scheduled plural PDSCH receptions from or PUSCH transmission to each of the plural TRPs.

A method of operating a first infrastructure equipment of a wireless communications network comprising a core network part, the first infrastructure equipment, a second infrastructure equipment acting as a backhaul relay node between the first infrastructure equipment and the core network part, and a downstream wireless communications device. The method comprising receiving from the second infrastructure equipment an indication of a first set of communications resources, allocating resource elements of the first set of communications resources for receiving first data for transmission to the core network part from the downstream wireless communications device, and receiving second data transmitted by the second infrastructure equipment on one or more resource elements within a second set of communications resources, the second set of communications resources different from the first set of communications resources.

A communication technique for convergence between a 5th-Generation (5G) communication system for supporting higher data rates beyond a 4th-Generation (4G) system and a technology for Internet of Things (IoT), and a system thereof, are provided. The communication technique and system may be applied to intelligent services (for example, smart homes, smart buildings, smart cities, smart cars or connected cars, health care, digital education, retail businesses, security and safety related services, etc.) based on the 5G communication technology and the IoT-related technology. A method and apparatus for determining a channel access procedure in a wireless communication system are provided.

Asynchronous multi-point transmission techniques for MIMO networks are provided. An example method comprises receiving, by a device comprising a processor, a first data signal from a first TP device of a wireless communication network, wherein the first data signal comprises first code-word information generated based on a data. The method further comprises receiving, by the device, a second data signal from a second TP device of the wireless communication network, wherein the second data signal comprises second code-word generated based on the data, wherein the first code-word information and the second-code word information are different, and wherein the first TP device and the second TP device are geographically separated by a threshold distance. The device can further process the first data signal and the second data signal to generate a unified data signal representative of the data.

In an aspect, a UE detects a collision between at least one symbol among first and second sets of symbols of respective SRS-M and SRS-P configurations. The UE selects one of the SRS-M configuration and the SRS-P configuration for transmission on the at least one detected collision symbol, and transmits an SRS transmission in accordance with the selected SRS configuration on the at least one detected collision symbol. In another aspect, a BS transmits configuration of a SRS-M-P, and receives an SRS-M-P transmission from a UE in accordance with the SRS-M-P configuration on at least one symbol.

Methods, systems, and devices for wireless communications are described. A user equipment (UE) may perform a transmission detection procedure on each base station before combining control information. The UE may use demodulation reference signals (DMRS) as a detection mechanism. If the UE detects a DMRS from a base station, the UE may determine that a control resource set associated with the base station is valid for combining. If the UE does not detect DMRS from the base station, the UE may refrain from combining control information from the base station. In another example, base stations that pass a listen-before-talk (LBT) pr6ocedure may transmit a preamble before transmitting control information. A preamble may carry a preamble sequence associated with a specific control resource set. The UE may identify a preamble sequence and determine that the corresponding control resource set is valid for control information combining.