Method and apparatus for sharing frequency resources between mobile communication providers in wireless communication system
摘要
說明書
In the LTE system, scheduling information for downlink data or uplink data is transmitted from a base station to a UE through DCI. DCI may be defined in several formats. The base station is operated by applying thereto a DCI format determined in advance according to whether the scheduling information is for uplink data or downlink data, whether the DCI is compact DCI having a small amount of control information, whether spatial multiplexing using multiple antennas is applied, whether the DCI is DCI for power control, or the like. For example, DCI format 1, which is scheduling control information for downlink data, is configured to include at least the following control information.
resource allocation type 0/1 flag: indicates whether a resource allocation method is type 0 or type 1. The type 0 method instructs to allocate resources in units of resource block groups (RBGs) by applying a bitmap method. In the LTE system, a basic unit of scheduling is a resource block (RB) represented by time and frequency domain resources, and an RBG includes a plurality of RBs and is used as a basic unit of scheduling in the type 0 method. The type 1 method instructs to assign a certain RB within an RBG.
resource block assignment: indicates RB allocated for data transmission. A resource to be expressed is determined according to a system bandwidth and a resource allocation method.
modulation and coding scheme (MCS): indicates a modulation method used for data transmission and the size of a transport block which is data to be transmitted.
HARQ process number: notifies a process number of a hybrid automatic repeat request (HARQ).
new data indicator: indicates whether the HARQ is initially transmitted or retransmitted.
redundancy version: indicates a redundancy version of the HARQ.
