Methods and systems for transmitting uplink control information and feedback are disclosed for carrier aggregation systems. A user equipment device may be configured to transmit uplink control information and other feedback for several downlink component carriers using one or more uplink component carriers. The user equipment device may be configured to transmit such data using a physical uplink control channel rather than a physical uplink shared channel. The user equipment device may be configured to determine the uplink control information and feedback data that is to be transmitted, the physical uplink control channel resources to be used to transmit the uplink control information and feedback data, and how the uplink control information and feedback data may be transmitted over the physical uplink control channel.

Provided is a method for performing transmission of an uplink channel in a wireless communication system, the method being performed by a terminal and comprising the steps of: receiving a system information block 1 (SIB1) from a base station; transmitting a preamble for a random access procedure to the base station; receiving a random access response (RAR) to the preamble from the base station; and transmitting a PUSCH to the base station on the basis of the random access response.

Various aspects described herein relate to techniques for frequency hopping for a wideband allocation in wireless communications. A wideband allocation of resources for transmitting uplink wireless communications can be determined, as well as a frequency hopping offset related to one or more narrowbands for transmitting uplink wireless communications. In addition, it can be determined whether to apply the frequency hopping offset to the wideband allocation in communicating data. The data can be communicated over resources related to the wideband allocation with the frequency hopping offset applied communicating, based on determining to apply the frequency hopping offset.

In a wireless communication method, base stations having an identical number of channels for receiving narrowband modulation (UNB) are divided into groups. Data transmission channels of all base stations have identical time and frequency characteristics. All subscribers split into groups are periodically sent messages with subscriber group numbers by all the base stations. When a group number of a corresponding subscriber coincides with a group number in a message received by the subscriber, all the subscribers of the group send response messages to the base stations using UNB, wherein response messages are sent sequentially from all subgroups of subscribers of the group, and subscribers of a subgroup send response messages on different frequencies. The base stations receive the response messages on all frequencies corresponding to subscribers, decode the messages and generate a database of response messages, which can be used for generating subsequent messages with corresponding subscriber group numbers.

A terminal is disclosed including a processor that assumes a position of an additional demodulation reference signal (DMRS) based on a value corresponding to whether frequency hopping is enabled or disabled; and a transmitter that transmits the additional DMRS according to an allocation duration of an uplink shared channel (PUSCH). In other aspects, a radio communication method and a base station are also disclosed.

This application relates to enhanced coverage communication using a physical uplink control channel (PUCCH). PUCCH puncturing may be performed in relation to frequency hopping.

Methods and systems for transmitting uplink control information and feedback are disclosed for carrier aggregation systems. A user equipment device may be configured to transmit uplink control information and other feedback for several downlink component carriers using one or more uplink component carriers. The user equipment device may be configured to transmit such data using a physical uplink control channel rather than a physical uplink shared channel. The user equipment device may be configured to determine the uplink control information and feedback data that is to be transmitted, the physical uplink control channel resources to be used to transmit the uplink control information and feedback data, and how the uplink control information and feedback data may be transmitted over the physical uplink control channel.

Methods and systems for transmitting uplink control information and feedback are disclosed for carrier aggregation systems. A user equipment device may be configured to transmit uplink control information and other feedback for several downlink component carriers using one or more uplink component carriers. The user equipment device may be configured to transmit such data using a physical uplink control channel rather than a physical uplink shared channel. The user equipment device may be configured to determine the uplink control information and feedback data that is to be transmitted, the physical uplink control channel resources to be used to transmit the uplink control information and feedback data, and how the uplink control information and feedback data may be transmitted over the physical uplink control channel.

In a wireless communication method, base stations having an identical number of channels for receiving narrowband modulation (UNB) are divided into groups. Data transmission channels of all base stations have identical time and frequency characteristics. All subscribers split into groups are periodically sent messages with subscriber group numbers by all the base stations. When a group number of a corresponding subscriber coincides with a group number in a message received by the subscriber, all the subscribers of the group send response messages to the base stations using UNB, wherein response messages are sent sequentially from all subgroups of subscribers of the group, and subscribers of a subgroup send response messages on different frequencies. The base stations receive the response messages on all frequencies corresponding to subscribers, decode the messages and generate a database of response messages, which can be used for generating subsequent messages with corresponding subscriber group numbers.

The present invention relates to a method for transmitting a physical uplink control channel, the method comprising: determining a sequence hopping pattern on the basis of a frequency hopping index determined based on whether or not frequency hopping is configured in a slot; and transmitting a first PUCCH including a demodulation reference signal to which the determined sequence hopping pattern is applied, or a second PUCCH to which the determined sequence hopping pattern is applied.