Communication method and apparatus
Embodiments of this application provide example communication methods and apparatuses. One example method includes receiving, by a terminal device, N pieces of first information in N separate transmissions, where N is an integer greater than 1. The terminal device can then determine second information or transmission information of the second information based on at least a part of the N pieces of first information, where each of the N pieces of first information includes M bits, and M is an integer greater than or equal to 1.
1. A communication method, comprising:
receiving, by a terminal device, N pieces of first information in N separate transmissions, wherein Nis an integer greater than 1;
determining, by the terminal device, second information or transmission information of the second information based on at least a part of the N pieces of the first information, wherein each of the N pieces of the first information comprises M bits, and M is an integer greater than or equal to 1;
receiving, by the terminal device, a first system information;
receiving, by the terminal device, downlink control information (DCI) based on the first system information; and
determining, by the terminal device, transmission information of second system information based on the DCI, wherein the transmission information of the second system information comprises at least one of a quantity of repeated transmissions of the second system information, a quantity of repeated transmissions or continuous scheduling time of scheduling information of the second system information, frequency domain resource information of the second system information, or time domain resource information of the second system information, and wherein at least one of:
the frequency domain resource information comprises bandwidth part (BWP) information, wherein the BWP information indicates a BWP in which the second system information is located; or
the time domain resource information indicates at least one of the following information:
a time domain position of the second system information;
whether the second system information is continuously scheduled, periodically scheduled, or scheduled according to a preset rule in time domain; or
scheduling duration or a scheduling periodicity of the second system information in time domain.
2. The communication method according to claim 1 , wherein the determining, by the terminal device, second information or transmission information of the second information based on at least a part of the N pieces of the first information comprises:
determining, by the terminal device, the second information or the transmission information of the second information based on some or all bits in the received N pieces of the first information.
3. The communication method according to claim 1 , wherein the transmission information of the second information comprises at least one of the following information:
a quantity of repeated transmissions of the second information, a quantity of repeated transmissions of scheduling information of the second information, frequency domain resource information of the second information, or time domain resource information of the second information.
4. The communication method according to claim 3 , wherein at least one of:
the frequency domain resource information comprises bandwidth part (BWP) information, wherein the BWP information indicates a BWP in which the second information is located; or
the time domain resource information indicates at least one of the following information:
a time domain position of the second information;
whether the second information is continuously scheduled, periodically scheduled, or scheduled according to a preset rule in time domain; or
scheduling duration or a scheduling periodicity of the second information in time domain.
5. The communication method according to claim 2 , wherein the determining, by the terminal device, the second information or the transmission information of the second information based on some or all bits in the received N pieces of the first information comprises:
determining, by the terminal device, a second bit in the received N pieces of the first information based on a first bit in the received N pieces of the first information, wherein the first bit indicates location information of the second bit; and
determining, by the terminal device, the second information or the transmission information of the second information based on the second bit.
6. The communication method according to claim 1 , wherein:
each of the N pieces of the first information is carried in a master information block (MIB), and the second information is a system information block (SIB1); or
each of the N pieces of the first information is carried in an SIB1, and the second information is other system information (OSI).
7. A communication method, comprising:
receiving, by a terminal device, first system information, wherein the first system information comprises indication information;
determining, by the terminal device, transmission information of second system information based on the indication information, wherein a type of the terminal device corresponds to the transmission information of the second system information, and the transmission information of the second system information comprises at least one of a quantity of repeated transmissions of the second system information, a quantity of repeated transmissions of scheduling information of the second system information, frequency domain resource information of the second system information, or time domain resource information of the second system information;
receiving, by the terminal device, third system information;
receiving, by the terminal device, downlink control information (DCI) based on the third system information; and
determining, by the terminal device, transmission information of fourth system information based on the DCI, wherein the transmission information of the fourth system information comprises at least one of a quantity of repeated transmissions of the fourth system information, a quantity of repeated transmissions or continuous scheduling time of scheduling information of the fourth system information, frequency domain resource information of the fourth system information, or time domain resource information of the fourth system information, and wherein at least one of:
the frequency domain resource information comprises bandwidth part (BWP) information, wherein the BWP information indicates a BWP in which the fourth system information is located; or
the time domain resource information indicates at least one of the following information:
a time domain position of the fourth system information;
whether the fourth system information is continuously scheduled, periodically scheduled, or scheduled according to a preset rule in time domain; or
scheduling duration or a scheduling periodicity of the fourth system information in time domain.
8. The communication method according to claim 7 , wherein the type of the terminal device comprises one or more of the following types:
user equipment, a wearable device, an active Internet of Things (IoT) device, or a passive IoT device used in an enhanced mobile broadband (eMBB) communication system, a narrowband (NB) communication system, an IoT communication system, a massive machine-type communication (mMTC) system, or a lightweight new radio (NR) communication system.
9. The communication method according to claim 7 , wherein at least one of:
the frequency domain resource information comprises bandwidth part (BWP) information, wherein the BWP information indicates a BWP in which the second system information is located; or
the time domain resource information indicates at least one of the following information:
a time domain position of the second system information;
whether the second system information is continuously scheduled, periodically scheduled, or scheduled according to a preset rule in time domain; or
scheduling duration or a scheduling periodicity of the second system information in time domain.
10. The communication method according to claim 7 , wherein:
the first system information is a master information block (MIB), and the second system information is a system information block (SIB1); or
the first system information is an SIB1, and the second system information is other system information (OSI).
11. The communication method according to claim 7 , wherein the determining, by the terminal device, transmission information of fourth system information based on the DCI comprises:
determining, by the terminal device, the transmission information of the fourth system information based on at least one bit comprised in the DCI.
12. The communication method according to claim 7 , wherein:
the third system information is a master information block (MIB), and the fourth system information is a system information block (SIB1); or
the third system information is an SIB1, and the fourth system information is other system information (OSI).
13. A communication apparatus, comprising:
at least one processor; and
one or more memories coupled to the at least one processor and storing programming instructions for execution by the at least one processor to:
receive N pieces of first information in N separate transmissions, wherein N is an integer greater than 1;
determine second information or transmission information of the second information based on at least a part of the N pieces of the first information, wherein each of the N pieces of the first information comprises M bits, and M is an integer greater than or equal to 1;
receive a first system information;
receive downlink control information (DCI) based on the first system information; and
determine transmission information of second system information based on the DCI, wherein the transmission information of the second system information comprises at least one of a quantity of repeated transmissions of the second system information, a quantity of repeated transmissions or continuous scheduling time of scheduling information of the second system information, frequency domain resource information of the second system information, or time domain resource information of the second system information, and wherein at least one of:
the frequency domain resource information comprises bandwidth part (BWP) information, wherein the BWP information indicates a BWP in which the second system information is located; or
the time domain resource information indicates at least one of the following information:
a time domain position of the second system information;
whether the second system information is continuously scheduled, periodically scheduled, or scheduled according to a preset rule in time domain; or
scheduling duration or a scheduling periodicity of the second system information in time domain.
14. The communication apparatus according to claim 13 , wherein the programming instructions are for execution by the at least one processor to:
determine the second information or the transmission information of the second information based on some or all bits in the received N pieces of the first information.
15. The communication apparatus according to claim 13 , wherein the transmission information of the second information comprises at least one of the following information:
a quantity of repeated transmissions of the second information, a quantity of repeated transmissions of scheduling information of the second information, frequency domain resource information of the second information, or time domain resource information of the second information.
16. The communication apparatus according to claim 15 , wherein at least one of:
the frequency domain resource information comprises bandwidth part (BWP) information, wherein the BWP information indicates a BWP in which the second information is located; or
the time domain resource information indicates at least one of the following information:
a time domain position of the second information;
whether the second information is continuously scheduled, periodically scheduled, or scheduled according to a preset rule in time domain; or
scheduling duration or a scheduling periodicity of the second information in time domain.
17. The communication apparatus according to claim 14 , wherein the programming instructions are for execution by the at least one processor to:
determine a second bit in the received N pieces of the first information based on a first bit in the received N pieces of the first information, wherein the first bit indicates location information of the second bit; and
determine the second information or the transmission information of the second information based on the second bit.
18. The communication apparatus according to claim 13 , wherein:
each of the N pieces of the first information is carried in a master information block (MIB), and the second information is a system information block (SIB1); or
each of the N pieces of the first information is carried in an SIB1, and the second information is other system information (OSI).