Abstract:
An apparatus and method are provided for transmitting Uplink Control Information (UCI) over a Physical Uplink Control CHannel (PUCCH) in a communication system. A method includes acquiring, by a user equipment (UE), from a base station, information for a PUCCH format, the information indicating at least one of a first PUCCH format associated with more than one resource block or a second PUCCH format associated with one resource block; generating, by the UE, UCI to be transmitted; modulating, by the UE, the UCI by using quadrature phase shift keying (QPSK); performing, by the UE, an inverse Fourier transform (IFT) operation on the modulated UCI; and transmitting, by the UE, the inverse Fourier transformed UCI on the PUCCH format by using a part of symbols in a slot. The PUCCH format is selected among the first PUCCH format and the second PUCCH format based on a number of at least one bit of the UCI.
Abstract:
An apparatus and method are provided for transmitting Uplink Control Information (UCI) over a Physical Uplink Control CHannel (PUCCH) in a communication system. A method includes acquiring, by a user equipment (UE), from a base station, information for a PUCCH format, the information indicating one of a first PUCCH format associated with more than one resource block or a second PUCCH format associated with one resource block; generating, by the UE, UCI to be transmitted; modulating, by the UE, the UCI by using quadrature phase shift keying (QPSK); performing, by the UE, an inverse Fourier transform (IFT) operation on the modulated UCI; and transmitting, by the UE, the inverse Fourier transformed UCI using the PUCCH format based on the information for the PUCCH format.
Abstract:
A method and an apparatus for scheduling data in a wireless communication system are provided. The method includes checking first control information in a first subframe, checking a first block including second control information and first data based on the first control information in the first subframe, and decoding the first data based on the second control information in the first subframe. The first control information includes resource allocation information related to the first block, and the second control information includes one of channel state information about the first data, or resource allocation information related to a second block in a second subframe.
Abstract:
A 5th Generation (5G) or pre-5G communication system for supporting higher data transmission rates beyond 4th Generation (4G) communication systems such as long term evolution (LTE) systems. A method for transmitting download control information in a communication system is provided. The method includes configuring the control information indicating at least one control channel element (CCE) including at least one resource element group (REG) unit interleaved based on the interleaving information indicated by a higher layer signaling; and transmitting, to a user equipment (UE), the configured control information.
Abstract:
Methods and apparatus are described for a User Equipment (UE) with reduced processing capabilities (e.g., Machine Type Communication (MTC) UE) to transmit and receive signaling are provided. The Downlink Control Information (DCI) formats scheduling a transmission of a Physical Uplink Shared CHannel (PUSCH) or a reception of a Physical Downlink Shared CHannel (PDSCH) are designed and have a smaller size than respective DCI formats for conventional UEs. DCI formats scheduling PUSCHs to or PDSCHs for a group of MTC UEs are also designed and can have a same size as DCI formats scheduling PUSCH or PDSCH for an individual MTC UE.
Abstract:
An apparatus and method are provided for a mobile communication system. The method includes receiving a signal; determining location information of at least one symbol group; and acquiring the at least one symbol group, to which an orthogonal sequence is applied, from the signal, based on the location information. The at least one symbol group is mapped to one of a first antenna set and a second antenna set based on the a symbol group index and a physical hybrid automatic repeat request indicator channel (PHICH) group index.
Abstract:
Methods and apparatus are described for User Equipment (UE) to concurrently transmit Uplink Control Information (UCI) and data information to a Node B. The Node B can configure the UE to transmit UCI together with data information in a Physical Uplink Shared CHannel (PUSCH) or separate from data information in a Physical Uplink Control CHannel (PUCCH). The UE may also determine whether to transmit UCI together with data information in the PUSCH or separate from data information in the PUCCH based on criteria involving a ratio of PUSCH resources for UCI transmission over the total PUSCH resources, a Modulation and Coding Scheme (MCS) for the data information, an absolute power difference between PUCCH and PUSCH transmissions, whether the PUSCH transmission uses frequency hopping, and/or whether spatial multiplexing is used for the data transmission.
Abstract:
A method and apparatus are provided for receiving ACK/NACK information by a base station. The method includes transmitting data and control information to at least one UE, the control information being transmitted on a downlink control channel including at least one CCE; transmitting information related to cyclic shift values of a sequence used for transmission of the ACK/NACK information in an RB, wherein the ACK/NACK information and CQI are multiplexed in the RB; checking a resource for reception of ACK/NACK information mapped to the at least one CCE based on the information related to cyclic shift values and a mapping rule between CCEs and a resource for reception of the ACK/NACK information, wherein the resource for reception of the ACK/NACK information is identified by a cyclic shift index, an orthogonal sequence index, and a resource block index; and receiving the ACK/NACK information for the transmitted data using the checked resource.
Abstract:
Methods and apparatuses are provided for wireless communication. Control symbols are mapped to a plurality of resource element groups (REGs) which is not assigned to a physical channel format indication channel (PCFICH) or a physical hybrid automatic repeat request indicator channel (PHICH). The mapped control symbols are transmitted on a packet dedicated control channel (PDCCH). A number of a plurality of resource elements (REs) in each of the REGs depends on an index of an orthogonal frequency division multiplexing (OFDM) symbol and a number of configured reference signals. A number of the REGs in a physical resource block (PRB) on an OFDM symbol depends on the index of the OFDM symbol and the number of configured reference signals.
Abstract:
Methods and apparatuses are provided for wireless communication. Control symbols are mapped to a plurality of resource element groups (REGs) which is not assigned to a physical channel format indication channel (PCFICH) or a physical hybrid automatic repeat request indicator channel (PHICH). The REGs are allocated based on a time first manner. The mapped control symbols are transmitted on a packet dedicated control channel (PDCCH). A number of a plurality of resource elements (REs) in each of the REGs depends on an index of an orthogonal frequency division multiplexing (OFDM) symbol and a number of configured reference signals.