Scheduling method and device in wireless communication system providing broadband service
The present disclosure relates to a communication technique in which a 5G communication system for supporting more high data transmission rate after a 4G system converges with an IoT technology, and a system thereof. The present disclosure may be applied to intelligent services (e.g., smart hole, smart building, smart city, smart car or connected car, healthcare, digital education, retail business, security and safety-related services) based on a 5G communication technology and an IoT-related technology. The present disclosure provides a method for data scheduling of a base station in a mobile communication system supporting broadband transmission and reception, thereby supporting efficient use of radio resources. A method for communication of a terminal in a wireless communication system according to an embodiment of the present disclosure may include receiving control information corresponding to a broadband transmission mode through a first bandwidth, and receiving downlink data having, as a maximum bandwidth, a bandwidth expanded as much as a second bandwidth from the first bandwidth, based on the control information.
1. A method for communication of a terminal in a wireless communication system, the method comprising:
receiving a configuration message including configuration information of a broadband transmission mode from a first cell;
receiving control information corresponding to the broadband transmission mode through a first bandwidth of the first cell, the control information including allocated resource information for the first cell and a second cell having a second bandwidth in the broadband transmission mode;
receiving downlink data through the first bandwidth of the first cell and the second bandwidth of the second cell based on the control information,
wherein the configuration information of the broadband transmission mode includes downlink data mapping information of the second cell that includes information on whether at least one of a physical broadcast channel and a synchronization signal is transmitted in the second cell.
2. The method of claim 1 , wherein at least one of the following is satisfied:
a maximum bandwidth is a bandwidth expanded as much as the second bandwidth of the second cell from the first bandwidth of the first cell,
the configuration information of the broadband transmission mode further includes at least one of downlink bandwidth information of the second cell, and data scrambling information of the second cell,
the downlink bandwidth information of the second cell includes second bandwidth information,
the downlink data mapping information of the second cell further includes at least one of information of a symbol in which mapping of a downlink data channel starts in the second cell, information on whether the downlink data channel is mapped according to a channel transmitting a control field indicator in the second cell, and
the data scrambling information of the second cell includes information on whether data scrambling is independently performed in the second cell, or whether data scrambling in the second cell is performed together with the first cell.
3. The method of claim 1 , wherein at least one of the following is satisfied:
the control information includes resource block allocation control information indicating a resource block allocated for transmission of the downlink data,
a size of the resource block allocation control information is determined based on at least one of the maximum bandwidth and a resource allocation method, and
the resource allocation method includes a method of determining a unit of resource allocation based on the number of cells corresponding to the expanded bandwidth.
4. The method of claim 1 , wherein the downlink data is mapped dividedly in the first and second bandwidths, or continuously mapped across the maximum bandwidth, or the downlink data is mapped to a control channel transmission period in the second bandwidth.
5. A method for communication of a base station in a wireless communication system, the method comprising:
connecting to a terminal by a first cell;
transmitting a configuration message including configuration information of a broadband transmission mode to the terminal through the first cell;
transmitting control information corresponding to the broadband transmission mode through a first bandwidth of the first cell, the control information including allocated resource information for the first cell and a second cell having a second bandwidth in the broadband transmission mode; and
transmitting downlink data through the first bandwidth of the first cell and the second bandwidth of the second cell, to the terminal, based on the control information,
wherein the configuration information of the broadband transmission mode includes downlink data mapping information of the second cell that includes information on whether at least one of a physical broadcast channel and a synchronization signal is transmitted in the second cell.
6. The method of claim 5 , wherein at least one of the following is satisfied:
a maximum bandwidth is a bandwidth expanded as much as the second bandwidth of the second cell from the first bandwidth of the first cell,
the configuration information of the broadband transmission mode further includes at least one of downlink bandwidth information of the second cell, and data scrambling information of the second cell,
the downlink bandwidth information of the second cell includes second bandwidth information,
the downlink data mapping information of the second cell further includes at least one of information of a symbol in which mapping of a downlink data channel starts in the second cell, information on whether the downlink data channel is mapped according to a channel transmitting a control field indicator in the second cell, and
the data scrambling information of the second cell includes information on whether data scrambling is independently performed in the second cell, or whether data scrambling in the second cell is performed together with the first cell.
7. The method of claim 5 , wherein at least one of the following is satisfied:
the control information includes resource block allocation control information indicating a resource block allocated for transmission of the downlink data,
a size of the resource block allocation control information is determined based on at least one of the maximum bandwidth and a resource allocation method,
the resource allocation method includes a method of determining a unit of resource allocation based on the number of cells corresponding to the expanded bandwidth, and
the downlink data is mapped dividedly in the first and second bandwidths or continuously mapped across the maximum bandwidth, or mapped to a control channel transmission period in the second bandwidth.
8. A terminal in a wireless communication system, the terminal comprising:
a transceiver configured to transmit and receive a signal; and
a controller configured to connect to a first cell and perform a control to:
receive a configuration message including configuration information of a broadband transmission mode from the first cell,
receive control information corresponding to the broadband transmission mode through a first bandwidth of the first cell, the control information including allocated resource information for the first cell and a second cell having a second bandwidth in the broadband transmission mode, and
receive downlink data through the first bandwidth of the first cell and the second bandwidth of the second cell based on the control information,
wherein the configuration information of the broadband transmission mode includes downlink data mapping information of the second cell that includes information on whether at least one of a physical broadcast channel and a synchronization signal is transmitted in the second cell.
9. The terminal of claim 8 , wherein at least one of the following is satisfied:
a maximum bandwidth is a bandwidth expanded as much as the second bandwidth of the second cell from the first bandwidth of the first cell,
the configuration information of the broadband transmission mode further includes at least one of downlink bandwidth information of the second cell and data scrambling information of the second cell,
the downlink bandwidth information of the second cell includes second bandwidth information,
the downlink data mapping information of the second cell further includes at least one of information of a symbol in which mapping of a downlink data channel starts in the second cell, and information on whether the downlink data channel is mapped according to a channel transmitting a control field indicator in the second cell, and
the data scrambling information of the second cell includes information on whether data scrambling is independently performed in the second cell, or whether data scrambling in the second cell is performed together with the first cell.
10. The terminal of claim 8 , wherein at least one of the following is satisfied:
the control information includes resource block allocation control information indicating a resource block allocated for transmission of the downlink data,
a size of the resource block allocation control information is determined based on at least one of the maximum bandwidth and a resource allocation method, and
the resource allocation method includes a method of determining a unit of resource allocation based on the number of cells corresponding to the expanded bandwidth.
11. The terminal of claim 8 , wherein the downlink data is mapped dividedly in the first and second bandwidths, or continuously mapped across the maximum bandwidth, or the downlink data is mapped to a control channel transmission period in the second bandwidth.
12. A base station in a wireless communication system, the base station comprising:
a transceiver configured to transmit and receive a signal; and
a controller configured to connect to a first cell and perform a control to:
connect to a terminal by the first cell,
transmit a configuration message including configuration information of a broadband transmission mode from the first cell,
transmit control information corresponding to the broadband transmission mode to the terminal through a first bandwidth of the first cell, the control information including allocated resource information for the first cell and a second cell having a second bandwidth in the broadband transmission mode, and
transmit downlink data through the first bandwidth of the first cell and the second bandwidth of the second cell, to the terminal, based on the control information,
wherein the configuration information of the broadband transmission mode includes downlink data mapping information of the second cell that includes information on whether at least one of a physical broadcast channel and a synchronization signal is transmitted in the second cell.
13. The base station of claim 12 , wherein at least one of the following is satisfied:
a maximum bandwidth is a bandwidth expanded as much as the second bandwidth of the second cell from the first bandwidth of the first cell,
the configuration information of the broadband transmission mode further includes at least one of downlink bandwidth information of the second cell and data scrambling information of the second cell,
the downlink bandwidth information of the second cell includes second bandwidth information,
the downlink data mapping information of the second cell further includes at least one of information of a symbol in which mapping of a downlink data channel starts in the second cell, information on whether the downlink data channel is mapped according to a channel transmitting a control field indicator in the second cell, and
the data scrambling information of the second cell includes information on whether data scrambling is independently performed in the second cell, or whether data scrambling in the second cell is performed together with the first cell.
14. The base station of claim 12 , wherein at least one of the following is satisfied:
the control information includes resource block allocation control information indicating a resource block allocated for transmission of the downlink data,
a size of the resource block allocation control information is determined based on at least one of the maximum bandwidth and a resource allocation method, and
the resource allocation method includes a method of determining a unit of resource allocation based on the number of cells corresponding to the expanded bandwidth.
15. The base station of claim 12 , wherein the downlink data is mapped dividedly in the first and second bandwidths or continuously mapped across the maximum bandwidth, or mapped to a control channel transmission period in the second bandwidth.