Control information transmission method, transmit end, and receive end
Embodiments of the present invention provide a control information transmission method, a transmit end, and a receive end. The method includes: determining, by the transmit end, a first time domain resource used for sending scheduled data and a second time domain resource used for sending control information of the scheduled data in a transmission period, where the second time domain resource is a subset of the first time domain resource; and sending, by the transmit end, the control information on the second time domain resource, where the control information includes a parameter used to instruct the receive end to receive the scheduled data. Using the present invention can improve a success rate of data detection, shorten a transmission delay, and further improve reliability of a communications system.
1. A control information transmission method, comprising:
determining, by a control information receiving apparatus, a first time domain resource of first-type control information and scheduled data of the first-type control information;
wherein the first time domain resource of first-type control information comprises a first start subframe determined by selecting from at least one candidate offset value;
determining, by the control information receiving apparatus, a second time domain resource of second-type control information and scheduled data of a second-type control information;
wherein the second time domain resource of second-type control information comprises a second start subframe determined by the start subframe of the first time domain resource of first-type control information;
determining, by the control information receiving apparatus, the start subframe of the second time domain resource of the second-type control information according to the at least one candidate offset value, and a time domain location of scheduled data of the second-type control information, and wherein a frequency domain location of scheduled data of the second-type control information is indicated by an indicator in the second-type control information;
wherein the indicator further identifies a service type and a service priority;
when the control information receiving apparatus detects the second-type control information and the scheduled data in the first time domain resource, receiving the scheduled data of the second-type control information according to the second-type control information, via the frequency domain location and the time domain location;
wherein the frequency domain resource set is determined by a carrier identifier of a carrier in which the control information is located, and wherein the carrier identifier is used as an input variable for a function for determining the frequency domain location of the second-type control information;
when the control information receiving apparatus detects the second-type control information and the scheduled data in the first time domain resource, determining whether the second-type control information or the scheduled data of the second-type control information meets a preset condition; and
when the second-type control information or the scheduled data of the second-type control information meets the preset condition, performing, by the control information receiving apparatus, the step of receiving the scheduled data of the second-type control information according to the second-type control information, and
wherein the preset condition comprises a priority of the scheduled data of the second-type control information is higher than a priority of the scheduled data of the first-type control information.
2. The method according to claim 1 , wherein:
the preset condition further comprises at least one of the following conditions:
an urgency of the scheduled data or delay tolerance;
a data type of the scheduled data of the second-type control information is a triggering event, and a data type of the scheduled data of the first-type control information is a periodic event; or
a transmission period of the second time domain resource is not greater than a transmission period of the first time domain resource.
3. The method according to claim 1 , wherein the second-type control information comprises at least one of the following information:
priority indication information of the scheduled data of the second-type control information;
data type indication information of the scheduled data of the second-type control information, wherein the data type indication information is used to indicate whether the scheduled data of the second-type control information is event-triggered; or
transmission period indication information of the scheduled data of the second-type control information.
4. The method according to claim 1 , further comprising:
when the control information receiving apparatus is receiving the first-type control information and the scheduled data of the first-type control information when detecting the second-type control information and the scheduled data in the first time domain resource, discarding or stopping receiving the first-type control information and the scheduled data of the first-type control information.
5. The method according to claim 1 , wherein:
the first time domain resource comprises J child time domain resource groups, and each child time domain resource group comprises at least one child time domain resource, wherein J is a positive integer not less than 1.
6. A control information transmitting apparatus, comprising:
a storage medium to store a computer program; and
computer hardware to execute the computer program to implement:
a processor, configured to determine a first time domain resource of first-type control information and scheduled data of the first-type control information, wherein the first time domain resource of first-type control information comprises a first start subframe, wherein the start subframe selects from at least one candidate offset value;
wherein the processor is further configured to determine a second time domain resource of second-type control information and scheduled data of the second-type control information, wherein the second time domain resource of second-type control information comprises a second start subframe according to the first start subframe;
wherein the processor is further configured to determine whether the second-type control information or the scheduled data of the second-type control information meets a preset condition;
wherein the processor is further configured to determine, via the second time domain resource, a time domain location of scheduled data of the second-type control information, and wherein a frequency domain location of scheduled data of the second-type control information is further indicated by an indicator in the second-type control information; and
wherein the indicator further identifies at least one of: a service type, a service priority, or a packet size of the scheduled data; and
a transmitter, configured to: when the second-type control information or the scheduled data of the second-type control information meets the preset condition, send the second-type control information and the scheduled data of the second-type control information in the first time domain resource, via the determined time domain location and frequency domain location,
wherein the frequency domain resource set is determined by a carrier identifier of a carrier in which the control information is located, and wherein the carrier identifier is used as an input variable for a function for determining the frequency domain location of the second-type control information;
and
wherein the preset condition comprises a priority of the scheduled data of the second-type control information is higher than a priority of the scheduled data of the first-type control information.
7. The control information transmitting apparatus according to claim 6 , wherein:
the preset condition further comprises at least one of the following conditions:
an urgency of the scheduled data or delay tolerance;
a data type of the scheduled data of the second-type control information is a triggering event, and a data type of the scheduled data of the first-type control information is a periodic event; or
a transmission period of the second time domain resource is not greater than a transmission period of the first time domain resource.
8. The control information transmitting apparatus according to claim 6 , wherein:
the second-type control information comprises at least one of the following information:
priority indication information of the scheduled data of the second-type control information;
data type indication information of the scheduled data of the second-type control information, wherein the data type indication information is used to indicate whether the scheduled data of the second-type control information is event-triggered; or
transmission period indication information of the scheduled data of the second-type control information.
9. The control information transmitting apparatus according to claim 6 , wherein:
the transmitter is configured to:
send the second-type control information and the scheduled data of the second-type control information after a current transmission period of the first time domain resource ends; or
send the second-type control information and the scheduled data of the second-type control information in a current transmission period of the first time domain resource.
10. The control information transmitting apparatus according to claim 6 , wherein after completely sending the second-type control information and the scheduled data of the second-type control information, the transmitter is further configured to:
continue to send the first-type control information and/or the scheduled data of the first-type control information in the first time domain resource; or
resend the first-type control information and/or the scheduled data of the first-type control information in the first time domain resource.
11. The control information transmitting apparatus according to claim 6 , wherein:
the first time domain resource comprises J child time domain resource groups, and each child time domain resource group comprises at least one child time domain resource, wherein J is a positive integer not less than 1.
12. The control information transmitting apparatus according to claim 11 , wherein the transmitter is configured to:
send the second-type control information and the scheduled data of the second-type control information in at least two child time domain resource groups.
13. A control information transmitting apparatus, comprising:
a storage medium to store a computer program; and
computer hardware to execute the computer program to implement:
a processor, configured to determine a first time domain resource of first-type control information and scheduled data of the first-type control information, wherein the first time domain resource of first-type control information comprises a first start subframe;
wherein the processor is further configured to determine the first start subframe selecting from at least one candidate offset value; and
wherein the processor is further configured to determine a second time domain resource of second-type control information and scheduled data of the second-type control information wherein the second time domain resource of second-type control information comprises a second start subframe according to the first start subframe;
a receiving module, configured to:
determine the second start subframe of the second time domain resource of the second-type control information according to the selected candidate offset value, and a time domain location of scheduled data of the second-type control information, wherein a frequency domain of scheduled data of the second-type control information location is indicated by an indicator in the second-type control information;
wherein the frequency domain resource set is determined by a carrier identifier of a carrier in which the control information is located, and wherein the carrier identifier is used as an input variable for a function for determining the frequency domain location of the second-type control information;
wherein the indicator further identifies at least one of: a service type, a service priority, or a packet size of the scheduled data;
when the control information transmitting apparatus detects the second-type control information and the scheduled data in the first time domain resource, receive, at the determined time domain location and frequency domain location, the scheduled data of the second-type control information according to the second-type control information, and
when the control information transmitting apparatus detects the second-type control information and the scheduled data in the first time domain resource, determine whether the second-type control information or the scheduled data of the second-type control information meets a preset condition; and when the second-type control information or the scheduled data of the second-type control information meets the preset condition, receive the scheduled data of the second-type control information according to the second-type control information,
wherein the preset condition comprises a priority of the scheduled data of the second-type control information is higher than a priority of the scheduled data of the first-type control information.
14. The control information transmitting apparatus according to claim 13 , wherein:
the preset condition further comprises at least one of the following conditions:
an urgency of the scheduled data or delay tolerance;
a data type of the scheduled data of the second-type control information is a triggering event, and a data type of the scheduled data of the first-type control information is a periodic event; or
a transmission period of the second time domain resource is not greater than a transmission period of the first time domain resource.
15. The control information transmitting apparatus according to claim 13 , wherein the second-type control information comprises at least one of the following information:
priority indication information of the scheduled data of the second-type control information;
data type indication information of the scheduled data of the second-type control information, wherein the data type indication information is used to indicate whether the scheduled data of the second-type control information is event-triggered; or
transmission period indication information of the scheduled data of the second-type control information.
16. The control information transmitting apparatus according to claim 13 , wherein:
the receiving module is further configured to:
when the control information transmitting apparatus is receiving the first-type control information and the scheduled data of the first-type control information when detecting the second-type control information and the scheduled data in the first time domain resource, discard or stop receiving the first-type control information and the scheduled data of the first-type control information.
17. The control information transmitting apparatus according to claim 13 , wherein:
the first time domain resource comprises J child time domain resource groups, and each child time domain resource group comprises at least one child time domain resource, wherein J is a positive integer not less than 1.
18. The method according to claim 1 , wherein the second time domain resource is a subset of a first time domain resource.
19. The method according to claim 1 , wherein the higher priority of the scheduled data of the second-type control information is further corresponding to at least one of the following: more urgent second-type control information, a shorter transmission delay of the second-type control information.
20. The control information transmitting apparatus according to claim 6 , wherein the second time domain resource is a subset of a first time domain resource.
21. The control information transmitting apparatus according to claim 6 , wherein the higher priority of the scheduled data of the second-type control information is further corresponding to at least one of the following: more urgent second-type control information, a shorter transmission delay of the second-type control information.
22. The control information transmitting apparatus according to claim 6 , wherein when the second-type control information is completely sent, the control information transmitting apparatus may further continue to send the first-type control information and/or the scheduled data of the first-type control information in the first time domain resource, or resend the first-type control information and/or the scheduled data of the first-type control information in the first time domain resource.
23. The control information transmitting apparatus according to claim 13 , wherein the second time domain resource is a subset of a first time domain resource.
24. The control information transmitting apparatus according to claim 13 , wherein the higher priority of the scheduled data of the second-type control information is further corresponding to at least one of the following: more urgent second-type control information, a shorter transmission delay of the second-type control information.