Signal transmission method, terminal device, and network device
地域：
Guangdong
摘要
The present disclosure discloses an example signal transmission method and an example terminal device. One example signal transmission method includes monitoring, by a terminal device and based on a size of first downlink control information (DCI), the first DCI and second DCI that are sent by a network device, where the first DCI is carried on a power saving signal shared by a plurality of terminal devices including the terminal device, and the second DCI is carried on a terminal device specific power saving signal. It is determined by the terminal device and based on at least one of the first DCI or the second DCI, whether to monitor a data channel in a first time period.
說明書
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This application is a continuation of International Application No. PCT/CN2020/089208, filed on May 8, 2020, which claims priority to Chinese Patent Application No. 201910391324.5, filed on May 12, 2019. The disclosures of the aforementioned applications are hereby incorporated by reference in their entireties.
This application relates to the communication field, and more specifically, to a signal transmission method, a terminal device, and a network device.
This application provides a signal transmission method, a terminal device, and a network device, to reduce complexity of monitoring a power saving signal by user equipment.
According to a first aspect, this application provides a signal transmission method. The method includes: A terminal device monitors, based on a size of first downlink control information (DCI), the first DCI and second DCI that are sent by a network device, where the first DCI is carried on a power saving signal shared by a plurality of terminal devices including the terminal device, and the second DCI is carried on a terminal device specific power saving signal; and the terminal device determines, based on the detected first DCI and/or the detected second DCI, whether to monitor a data channel in a first time period.
In the foregoing technical solution, the terminal device may simultaneously monitor the two types of DCI: the first DCI and the second DCI based on the size of the first DCI, and does not need to separately monitor the first DCI and the second DCI, so that complexity of monitoring the power saving signals by the terminal device can be reduced.
權(quán)利要求
What is claimed is:1. A signal transmission method, comprising:monitoring, by a terminal device and based on a size of first downlink control information (DCI), the first DCI and second DCI that are sent by a network device, wherein the first DCI is carried on a power saving signal shared by a plurality of terminal devices comprising the terminal device, and the second DCI is carried on a terminal device specific power saving signal, wherein the first DCI comprises a first information block, and an information field in the first information block corresponds to the terminal device among the plurality of terminal devices, and the information field in the first information block indicates a status value that corresponds to a combination of status values of a plurality of information fields in the second DCI; and determining, by the terminal device and based on at least one of the first DCI or the second DCI, whether to monitor a data channel in a first time period. 2. The method according to claim 1 , wherein the size of the first DCI is the same as a size of the second DCI. 3. The method according to claim 2 , wherein when the size n1 of the first DCI is greater than a quantity n2 of information bits of the second DCI, both the size of the first DCI and the size of the second DCI are n2, and (n2-n1) bits in the second DCI are padding bits. 4. The method according to claim 2 , wherein when the size n1 of the first DCI is less than a quantity n2 of information bits of the second DCI, both the size of the first DCI and the size of the second DCI are n1, and the second DCI is n1 information bits of the n2 information bits of the second DCI. 5. The method according to claim 1 , wherein the first DCI comprises more than one information block, each of the more than one information block comprises at least one information field, and different information blocks of the more than one information block indicate respective parameters used by different terminal devices to monitor respective data channels in the first time period; andthe more than one information block comprises the first information block, and an information field in the first information block indicates a parameter used by the terminal device to monitor a data channel in the first time period. 6. The method according to claim 5 , wherein information fields comprised in at least two of the more than one information block are different. 7. The method according to claim 1 , wherein when the first DCI is a first bit sequence value, the first DCI comprises indication that the plurality of terminal devices monitor respective data channels in the first time period. 8. The method according to claim 1 , wherein monitoring of the first DCI and monitoring of the second DCI are performed in a same control resource set (CORESET). 9. The method according to claim 1 , wherein monitoring of the first DCI and monitoring of the second DCI are performed on a candidate control channel resource in a same search space set. 10. The method according to claim 1 , wherein the plurality of information fields comprise a bandwidth part identifier (BWP ID) information field, a cross-slot or same-slot information field, a trigger reference signal (RS) resource indicator information field, and a carrier transmission indicator information field. 11. A terminal device, comprising:one or more processors; and a non-transitory computer readable medium storing a program to be executed by the one or more processors, wherein the program comprises instructions that cause the terminal device to perform operations comprising:monitoring, based on a size of first downlink control information (DCI), the first DCI and second DCI that are sent by a network device, wherein the first DCI is carried on a power saving signal shared by a plurality of terminal devices comprising the terminal device, and the second DCI is carried on a terminal device specific power saving signal, wherein the first DCI comprises a first information block, and an information field in the first information block corresponds to the terminal device among the plurality of terminal devices, and the information field in the first information block indicates a status value that corresponds to a combination of status values of a plurality of information fields in the second DCI; and determining, based on at least one of the first DCI or the second DCI, whether to monitor a data channel in a first time period. 12. The terminal device according to claim 11 , wherein the size of the first DCI is the same as a size of the second DCI. 13. The terminal device according to claim 12 , wherein when the size n1 of the first DCI is greater than a quantity n2 of information bits of the second DCI, both the size of the first DCI and the size of the second DCI are n2, and (n2?n1) bits in the second DCI are padding bits. 14. The terminal device according to claim 12 , wherein when the size n1 of the first DCI is less than a quantity n2 of information bits of the second DCI, both the size of the first DCI and the size of the second DCI are n1, and the second DCI is n1 information bits of the n2 information bits of the second DCI. 15. The terminal device according to claim 11 , wherein the first DCI comprises more than one information block, each of the more than one information block comprises at least one information field, and different information blocks of the more than one information block indicate respective parameters used by different terminal devices to monitor respective data channels in the first time period; andthe more than one information block comprises the first information block, and an information field in the first information block indicates a parameter used by the terminal device to monitor a data channel in the first time period. 16. The terminal device according to claim 15 , wherein information fields comprised in at least two of the more than one information block are different. 17. The terminal device according to claim 11 , wherein when the first DCI is a first bit sequence value, the first DCI comprises indication that the plurality of terminal devices monitor respective data channels in the first time period. 18. The terminal device according to claim 11 , wherein monitoring of the first DCI and monitoring of the second DCI are performed in a same control resource set (CORESET) or on a candidate control channel resource in a same search space set. 19. A non-transitory, computer-readable medium storing one or more instructions executable by a computer system to perform operations comprising:monitoring, by a terminal device and based on a size of first downlink control information (DCI), the first DCI and second DCI that are sent by a network device, wherein the first DCI is carried on a power saving signal shared by a plurality of terminal devices comprising the terminal device, and the second DCI is carried on a terminal device specific power saving signal, wherein the first DCI comprises a first information block, and an information field in the first information block corresponds to the terminal device among the plurality of terminal devices, and the information field in the first information block indicates a status value that corresponds to a combination of status values of a plurality of information fields in the second DCI; and determining, by the terminal device and based on at least one of the first DCI or the second DCI, whether to monitor a data channel in a first time period.
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