Method and apparatus for transmitting and receiving scheduling requests
A communication method and system for converging a 5 th -Generation (5G) communication system for supporting higher data rates beyond a 4 th -Generation (4G) system with a technology for Internet of Things (IoT) are provided. 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 method and apparatus of activating/deactivating cells with scalable transmission time intervals (TTIs) is disclosed.
1. A method performed by a terminal in a communication system, the method comprising:
receiving, from a base station, a control message including first configuration information for a first scheduling request (SR) and second configuration information for a second SR, wherein the first configuration information corresponds to a priority, a subcarrier spacing, and a transmission time interval (TTI) and the second configuration information corresponds to a priority, a subcarrier spacing, and a TTI;
identifying that a buffer status report (BSR) is triggered;
in case that the BSR triggers the first SR and a first counter corresponding to the first SR is lower than a first configured value, transmitting, to the base station, the first SR based on the first configuration information and increasing the first counter by 1, wherein the first configuration information indicates a time and frequency resource for the first SR and a periodicity for the first SR; and
in case that the BSR triggers the second SR and a second counter corresponding to the second SR is lower than a second configured value, transmitting, to the base station, the second SR based on the second configuration information and increasing the second counter by 1, wherein the second configuration information indicates a time and frequency resource for the second SR and a periodicity for the second SR,
wherein, in case that the first SR is triggered and no other SRs are pending corresponding to the first SR, the first counter is set to 0,
wherein, in case that the second SR is triggered and no other SRs are pending corresponding to the second SR, the second counter is set to 0,
wherein, in case that the first counter is equal to the first configured value, a random access procedure is performed on the base station, and
wherein, in case that the second counter is equal to the second configured value, a random access procedure is performed on the base station.
2. The method of claim 1 , wherein the periodicity for the first SR and the periodicity for the second SR are different from each other.
3. The method of claim 1 ,
wherein a first logical channel is mapped to the first configuration information,
wherein a second logical channel is mapped to the second configuration information, and
wherein the identifying that the BSR is triggered comprises identifying a logical channel to which the BSR corresponds.
4. The method of claim 1 , wherein the time and frequency resource for the first SR and the time and frequency resource for the second SR include physical layer resources on a physical uplink control channel (PUCCH).
5. A terminal in a communication system, the terminal comprising:
a transceiver; and
a controller configured to:
receive, from a base station via the transceiver, a control message including first configuration information for a first scheduling request (SR) and second configuration information for a second SR, wherein the first configuration information corresponds to a priority, a subcarrier spacing, and a transmission time interval (TTI) and the second configuration information corresponds to a priority, a subcarrier spacing, and a TTI,
identify that a buffer status report (BSR) is triggered,
in case that the BSR triggers the first SR and a first counter corresponding to the first SR is lower than a first configured value, transmit, to the base station via the transceiver, the first SR based on the first configuration information and increase the first counter by 1, wherein the first configuration information indicates a time and frequency resource for the first SR and a periodicity for the first SR, and
in case that the BSR triggers the second SR and a second counter corresponding to the second SR is lower than a second configured value, transmit, to the base station via the transceiver, the second SR based on the second configuration information and increase the second counter by 1, wherein the second configuration information indicates a time and frequency resource for the second SR and a periodicity for the second SR,
wherein, in case that the first SR is triggered and no other SRs are pending corresponding to the first SR, the first counter is set to 0,
wherein, in case that the second SR is triggered and no other SRs are pending corresponding to the second SR, the second counter is set to 0,
wherein, in case that the first counter is equal to the first configured value, a random access procedure is performed on the base station, and
wherein, in case that the second counter is equal to the second configured value, a random access procedure is performed on the base station.
6. The terminal of claim 5 , wherein the periodicity for the first SR and the periodicity for the second SR are different from each other.
7. The terminal of claim 5 ,
wherein a first logical channel is mapped to the first configuration information,
wherein a second logical channel is mapped to the second configuration information, and
wherein the controller is configured to identify a logical channel to which the BSR corresponds.
8. The terminal of claim 5 , wherein the time and frequency resource for the first SR and the time and frequency resource for the second SR include physical layer resources on a physical uplink control channel (PUCCH).
9. A method performed by a base station in a communication system, the method comprising:
transmitting, to a terminal, a control message including first configuration information for a first scheduling request (SR), and second configuration information for a second SR, wherein the first configuration information corresponds to a priority, a subcarrier spacing, and a transmission time interval (TTI) and the second configuration information corresponds to a priority, a subcarrier spacing, and a TTI;
in case that a buffer status report (BSR) triggers the first SR and a first counter corresponding to the first SR is lower than a first configured value, receiving, from the terminal, the first SR based on the first configuration information, the first counter being incremented by 1 based on the first SR, wherein the first configuration information indicates a time and frequency resource for the first SR and a periodicity for the first SR; and
in case that the triggered BSR triggers the second SR and a second counter corresponding to the second SR is lower than a second configured value, receiving, from the terminal, the second SR based on the second configuration information, the second counter being incremented by 1 based on the second SR, wherein the second configuration information indicates a time and frequency resource for the second SR and a periodicity for the second SR,
wherein, in case that the first SR is triggered and no other SRs are pending corresponding to the first SR, the first counter is set to 0,
wherein, in case that the second SR is triggered and no other SRs are pending corresponding to the second SR, the second counter is set to 0,
wherein, in case that the first counter is equal to the first configured value, a random access procedure is performed with the terminal, and
wherein, in case that the second counter is equal to the second configured value, a random access procedure is performed with the terminal.
10. The method of claim 9 , wherein the periodicity for the first SR and the periodicity for the second SR are different from each other.
11. The method of claim 9 ,
wherein a first logical channel is mapped to the first configuration information,
wherein a second logical channel is mapped to the second configuration information, and
wherein the logical channel to which the BSR corresponds is identified.
12. The method of claim 9 , wherein the time and frequency resource for the first SR and the time and frequency resource for the second SR include physical layer resources on a physical uplink control channel (PUCCH).
13. A base station in a communication system, the base station comprising:
a transceiver; and
a controller configured to:
transmit, to a terminal via the transceiver, a control message including first configuration information for a first scheduling request (SR) and; second configuration information for a second SR, wherein the first configuration information corresponds to a priority, a subcarrier spacing, and a transmission time interval (TTI) and the second configuration information corresponds to a priority, a subcarrier spacing, and a TTI,
in case that a buffer status report (BSR) triggers the first SR and a first counter corresponding to the first SR is lower than a first configured value, receive, from the terminal via the transceiver, the first SR based on the first configuration information, the first counter being incremented by 1 based on the first SR, wherein the first configuration information indicates a time and frequency resource for the first SR and a periodicity for the first SR, and
in case that the BSR triggers the second SR and a second counter corresponding to the second SR is lower than a second configured value, receive, from the terminal via the transceiver, the second SR based on the second configuration information, the second counter being incremented by 1 based on the second SR, wherein the second configuration information indicates a time and frequency resource for the second SR and a periodicity for the second SR,
wherein, in case that the first SR is triggered and no other SRs are pending corresponding to the first SR, the first counter is set to 0,
wherein, in case that the second SR is triggered and no other SRs are pending corresponding to the second SR, the second counter is set to 0,
wherein, in case that the first counter is equal to the first configured value, a random access procedure is performed with the terminal, and
wherein, in case that the second counter is equal to the second configured value, a random access procedure is performed with the terminal.
14. The base station of claim 13 , wherein the periodicity for the first SR and the periodicity for the second SR are different from each other.
15. The base station of claim 13 ,
wherein a first logical channel is mapped to the first configuration information,
wherein a second logical channel is mapped to the second configuration information, and
wherein the logical channel to which the BSR corresponds is identified.
16. The base station of claim 13 , wherein the time and frequency resource for the first SR and the time and frequency resource for the second SR include physical layer resources on a physical uplink control channel (PUCCH).