Method and apparatus for transmitting and receiving signal through beamforming in communication system
The present disclosure relates to a communication method and system for converging a 5th-Generation (5G) communication system for supporting higher data rates beyond a 4th-Generation (4G) system with a technology for Internet of Things (IoT). The present disclosure may be applied to intelligent services based on the 5G communication technology and the IoT-related technology, such as smart home, smart building, smart city, smart car, connected car, health care, digital education, smart retail, security and safety services. A signal transmission and reception method implemented by a terminal of a mobile communication system is provided. The terminal receives first information including a request for beam related information from a base station and transmits second information including the beam related information based on the first information to the base station. The terminal changes at least one of a Tx beam or a Rx beam associated with the base station, based on the first information and the second information.
1. A signal transmission and reception method of a terminal of a mobile communication system, the method comprising:
receiving, from a base station, first information including a request associated with a beam of the terminal;
transmitting, to the base station, second information associated with the beam in response to the first information;
identifying at least one of a transmitting (Tx) beam or a receiving (Rx) beam of the terminal associated with the base station based on the first information and the second information; and
applying the identified at least one of the Tx beam or the Rx beam in response to the receiving of the first information or in response to the transmitting of the second information.
2. The method of claim 1 ,
wherein the first information includes beam change indication information of the terminal, and
wherein the applying of the identified at least one of the Tx beam or the Rx beam comprises:
applying the identified at least one of the Tx beam or the Rx beam of the terminal associated with the base station based on whether the beam change indication information indicates a beam change.
3. The method of claim 2 ,
wherein the first information includes channel information associated with the beam of the terminal, and
wherein the identifying of the at least one of the Tx beam or the Rx beam comprises:
identifying the at least one of the Tx beam or the Rx beam of the terminal associated with the base station based on the channel information.
4. The method of claim 1 , further comprising:
receiving, from the base station, a response to the second information at a first subframe,
wherein the identified at least one of the Tx beam or the Rx beam is applied at a second subframe, and
wherein information on a relation between the first subframe and the second subframe is received through the first information or a higher layer message.
5. A signal transmission and reception method of a base station of a mobile communication system, the method comprising:
transmitting, to a terminal, first information including a request associated with a beam of the terminal;
receiving, from the terminal, second information associated with the beam in response to the first information;
identifying at least one of a transmitting (Tx) beam or a receiving (Rx) beam of the base station associated with the terminal, based on the first information and the second information; and
applying the identified at least one of the Tx beam or the Rx beam in response to the transmitting of the first information or in response to the receiving of the second information.
6. The method of claim 5 , wherein the first information includes beam change indication information of the base station, and
wherein the applying of the identified at least one of the Tx beam or the Rx beam comprises:
applying the identified Tx beam or the Rx beam of the base station associated with the terminal based on whether the beam change indication information indicates a beam change.
7. The method of claim 6 ,
further comprising:
transmitting, to the terminal, a response to the second information at a first subframe,
wherein the identified at least one of the Tx beam or the Rx beam is applied at a second subframe,
wherein information on a relation between the first subframe and the second subframe is transmitted through the first information or a higher layer message,
wherein the first information includes channel information associated with the beam of the base station, and
wherein the identifying of the at least one of the Tx beam or the Rx beam comprises: identifying the at least one of the Tx beam or the Rx beam of the base station associated with the terminal based on the channel information.
8. A terminal of a mobile communication system, the terminal comprising:
a transceiver; and
at least one processor coupled with the transceiver and configured to:
receive, from a base station, first information including a request associated with a beam of the terminal,
transmit, to the base station, second information associated with the beam in response to the first information,
identify at least one of a transmitting (Tx) beam or a receiving (Rx) beam of the terminal associated with the base station based on the first information and the second information, and
apply the identified at least one of the Tx beam or the Rx beam in response to the receiving of the first information or in response to the transmitting of the second information.
9. The terminal of claim 8 , wherein the first information includes beam change indication information of the terminal, and
wherein the at least one processor is further configured to:
apply the identified at least one of the Tx beam or the Rx beam of the terminal associated with the base station based on whether the beam change indication information indicates a beam change.
10. The terminal of claim 9 ,
wherein the first information includes channel information associated with the beam of the terminal, and
wherein the at least one processor is further configured to:
identify the at least one of a the Tx beam or the Rx beam of the terminal associated with the base station based on the channel information.
11. The terminal of claim 8 ,
wherein the at least one processor is further configured to:
receive, from the base station, a response to the second information at a first subframe,
wherein the identified at least one of the Tx beam or the Rx beam is applied at a second subframe, and
wherein information on a relation between the first subframe and the second subframe is received through the first information or a higher layer message.
12. A base station of a mobile communication system, the base station comprising:
a transceiver; and
at least one processor coupled with the transceiver and configured to:
transmit, to a terminal, first information including a request associated with a beam of the terminal,
receive, from the terminal, second information associated with the beam in response to the first information,
identifying at least one of a transmitting (Tx) beam or a receiving (Rx) beam of the base station associated with the terminal based on the first information and the second information, and
apply the identified at least one of the Tx beam or the Rx beam in response to the transmitting of the first information or in response to the receiving of the second information.
13. The base station of claim 12 , wherein the first information includes beam change indication information of the base station,
wherein the first information includes channel information associated with the beam of the base station, and
wherein the at least one processor is further configured to:
identify the at least one of the Tx beam or the Rx beam of the base station associated with the terminal based on the channel information.
14. The base station of claim 12 , wherein the second information includes beam change indication information of the terminal, and
wherein the at least one processor is further configured to apply the identified at least one of the Tx beam or the Rx beam of the base station associated with the terminal based on whether the beam change indication information indicates a beam change.
15. The base station of claim 12 , wherein the processor is further configured to:
transmit, to the terminal, a response to the second information at a first subframe,
wherein the identified at least one of the Tx beam or the Rx beam is applied at a second subframe, and
wherein information on a relation between the first subframe and the second subframe is transmitted through the first information or a higher layer message.