Methods and apparatuses for configuring a control resource set in a wireless communication system
View Patent ↗Methods and apparatuses for configuring a control resource set and a search space corresponding thereto in a wireless communication system, the method including transmitting a configuration of a control resource set and transmitting a control channel on the control resource set in accordance with the configuration of the control resource set. The control resource set is in a control region including time and frequency resources. The configuration of the control resource set includes: an indication of a starting symbol of the search space in the control resource set, an indication of a number of symbols of the control resource set, an indication of physical resource blocks (PRBs) in the control resource set, and an indication of CCE to resource element group (REG) mapping.
1. A method for configuring a control resource set and a search space corresponding thereto in a wireless communication system, comprising:
transmitting an indication of a starting symbol of the search space in the control resource set, an indication of a number of symbols of the control resource set and an indication of control channel element (CCE) to resource element group (REG) mapping of the control resource set, wherein the control resource set is in a control region including time and frequency resources; and
transmitting a control channel on the control resource set in accordance with the indication of the starting symbol of the search space in the control resource set and the indication of the number of symbols of the control resource set;
wherein a configuration of the control resource set includes an indication of physical resource block (PRB) bundling in the control resource set, the indication of PRB bundling includes a size of a PRB bundle, the size of a PRB bundle is 6;
wherein the control resource set is a first control resource set, and the search space is a first search space, the first control resource set and a second control resource set are overlapped, the CCE to REG mapping of the first control resource set is a first mapping mode, the CCE to REG mapping of the second control resource is a second mapping mode;
when the first mapping mode is time first, the second mapping mode is frequency first and when the first mapping mode is frequency first, the second mapping mode is time first.
2. The method of claim 1 , wherein the configuration of the control resource set further includes at least one of following:
an indication of REG/CCE mapping to physical resource elements,
an indication of a transmit diversity scheme,
an indication of reference signal allocation, or
any combination thereof.
3. The method of claim 1 , wherein the CCE to REG mapping includes a localized mapping or a distributed mapping.
4. The method of claim 1 , further comprising:
transmitting a configuration of the second control resource set,
wherein transmitting the control channel includes transmitting one or more control channels according to the configuration of the first control resource set, the configuration of the second resource set, or both of the configurations of the first and second control resource sets.
5. The method of claim 1 , further comprising transmitting
an indication of physical resource blocks (PRBs) in the control resource set.
6. A method for a user device in a wireless communication system, comprising:
receiving an indication of a starting symbol of a search space in a control resource set, an indication of a number of symbols of the control resource set and an indication of control channel element (CCE) to resource element group (REG) mapping of the control resource set, wherein the control resource set is in a control region including time and frequency resources; and
detecting a control channel on the control resource set in accordance with the indication of the starting symbol of the search space in the control resource set and the indication of the number of symbols of the control resource set;
wherein a configuration of the control resource set includes an indication of physical resource block (PRB) bundling in the control resource set, the indication of PRB bundling includes a size of a PRB bundle, the size of a PRB bundle is 6;
wherein the control resource set is a first control resource set, and the search space is a first search space, the first control resource set and a second control resource set are overlapped, the CCE to REG mapping of the first control resource set is a first mapping mode, the CCE to REG mapping of the second control resource is a second mapping mode;
when the first mapping mode is time first, the second mapping mode is frequency first and when the first mapping mode is frequency first, the second mapping mode is time first.
7. The method of claim 6 , wherein the configuration of the control resource set further includes at least one of following:
an indication of REG/CCE mapping to physical resource elements,
an indication of a transmit diversity scheme,
an indication of reference signal allocation, or
any combination thereof.
8. The method of claim 6 , wherein the CCE to REG mapping includes a localized mapping or a distributed mapping.
9. The method of claim 6 , further comprising:
receiving a configuration of the second control resource set,
wherein detecting the control channel includes detecting one or more control channels according to the configuration of the first control resource set, the configuration of the second resource set, or both of the configurations of the first and second control resource sets.
10. The method of claim 6 , further comprising receiving
an indication of physical resource blocks (PRBs) in the control resource set.
11. A network apparatus, comprising:
a memory storing instructions; and
a processor communicatively coupled to the memory,
wherein the instructions, when executed by the processor, cause the network apparatus to perform operations including:
transmitting an indication of a starting symbol of the search space in the control resource set, an indication of a number of symbols of the control resource set and an indication of control channel element (CCE) to resource element group (REG) mapping of the control resource set, wherein the control resource set is in a control region including time and frequency resources; and
transmit a control channel on the control resource set according to the indication of the starting symbol of the search space in the control resource set and the indication of the number of symbols of the control resource set;
wherein a configuration of the control resource set includes an indication of physical resource block (PRB) bundling in the control resource set, the indication of PRB bundling includes a size of a PRB bundle, the size of a PRB bundle is 6;
wherein the control resource set is a first control resource set, and the search space is a first search space, the first control resource set and a second control resource set are overlapped, the CCE to REG mapping of the first control resource set is a first mapping mode, the CCE to REG mapping of the second control resource is a second mapping mode;
when the first mapping mode is time first, the second mapping mode is frequency first and when the first mapping mode is frequency first, the second mapping mode is time first.
12. The apparatus of claim 11 , wherein the configuration of the control resource set further includes at least one of following:
an indication of REG/CCE mapping to physical resource elements,
an indication of a transmit diversity scheme,
an indication of reference signal allocation, or
any combination thereof.
13. The network apparatus of claim 11 , wherein the CCE to REG mapping includes a localized mapping or a distributed mapping.
14. The network apparatus of claim 11 , wherein the operations performed by the processor further comprise:
transmitting a configuration of the second control resource set,
wherein transmitting the control channel includes transmitting one or more control channels according to the configuration of the first control resource set, the configuration of the second resource set, or both of the configurations of the first and second control resource sets.
15. The apparatus of claim 11 , wherein the operations performed by the processor further comprise transmitting
an indication of physical resource blocks (PRBs) in the control resource set.
16. A user device, comprising:
a memory storing instructions; and
a processor communicatively coupled to the memory,
wherein the instructions, when executed by the processor, cause the processor to perform operations including:
receiving an indication of a starting symbol of a search space in a control resource set, an indication of a number of symbols of the control resource set and an indication of control channel element (CCE) to resource element group (REG) mapping of the control resource set, wherein the control resource set is in a control region including time and frequency resources; and
detecting a control channel on the control resource set in accordance with the indication of the starting symbol of the search space in the control resource set and the indication of the number of symbols of the control resource set;
wherein a configuration of the control resource set includes an indication of physical resource block (PRB) bundling in the control resource set, the indication of PRB bundling includes a size of a PRB bundle, the size of a PRB bundle is 6;
wherein the control resource set is a first control resource set, and the search space is a first search space, the first control resource set and a second control resource set are overlapped, the CCE to REG mapping of the first control resource set is a first mapping mode, the CCE to REG mapping of the second control resource is a second mapping mode;
when the first mapping mode is time first, the second mapping mode is frequency first and when the first mapping mode is frequency first, the second mapping mode is time first.
17. The user device of claim 16 , wherein the configuration of the control resource set further includes at least one of following:
an indication of REG/CCE mapping to physical resource elements,
an indication of a transmit diversity scheme,
an indication of reference signal allocation, or
any combination thereof.
18. The user device of claim 16 , wherein the CCE to REG mapping includes a localized mapping or a distributed mapping.
19. The user device of claim 16 , wherein the operations performed by the processor further comprise:
receiving a configuration of the second control resource set,
wherein detecting the control channel includes detecting one or more control channels according to the configuration of the first control resource set, the configuration of the second resource set, or both of the configurations of the first and second control resource sets.
20. The user device of claim 16 , wherein operations performed by the processor further comprise receiving:
an indication of physical resource blocks (PRBs) in the control resource set.