Communication method and device
Embodiments of this application provide a communication method and a device. The communication method and the device may be used in the field of a communication technology that supports a reduced capability terminal device, for example, weak-capability UE or MTC UE. The method includes: A first network device determines that a type of a first terminal device is a first type. The first network device sends a handover request message. The handover request message includes first indication information. The first indication information includes identifier information of the first type. The first network device receives a handover acknowledgment message or a handover preparation failure message.
1. A method, comprising:
generating a system message, wherein, if the system message comprises second indication information, the second indication information indicates a first type, wherein the first type is a first type of a terminal device, wherein a terminal device of the first type is a reduced capability (REDCAP) terminal device, wherein the second indication information indicates whether a cell of a network device allows the terminal device of the first type to perform intra-frequency reselection, and wherein if the system message does not comprise the second indication information, the system message indicates that camping on a cell of the network device is not allowed for a REDCAP terminal device; and
sending the system message by the network device to the terminal device.
2. The method according to claim 1 , wherein the system message is a system information block SIB1.
3. The method according to claim 1 , wherein a bandwidth supported by the reduced capability terminal devices is less than 20 MHz, and a peak data rate supported by the reduced capability terminal devices is in a range of 5 Mb/s to 10 Mb/s.
4. The method according to claim 1 , wherein a value of the second indication information indicates that the intra-frequency reselection is allowed or not allowed.
5. A method, comprising:
receiving a system message from a network device, wherein,
if the system message comprises the second indication information, the second indication information indicates a first type, wherein the first type is a first type of a terminal device, wherein a terminal device of the first type is a reduced capability (REDCAP) terminal device, determining, based on the second indication information, whether allow the terminal device of the first type to perform intra-frequency reselection; and
if the system message does not comprise the second indication information, determining that camping on a cell of the network device is not allowed for a REDCAP terminal device.
6. The method according to claim 5 , wherein the system message is a system information block SIB1.
7. The method according to claim 5 , further comprising:
determining that camping on a cell of the network device is allowed in response to the second indication information indicating that the cell of the network device allows terminal devices of the first type to camp on the cell of the network device; and
determining that camping on a cell of the network device is not allowed in response to the second indication information indicating that the cell of the network device does not allow terminal devices of the first type to camp on the cell of the network device.
8. The method according to claim 5 , wherein a value of the second indication information indicates that the intra-frequency reselection is allowed or not allowed.
9. An apparatus, comprising:
one or more processors; and
a non-transitory memory configured to store program instructions that are executable by the one or more processors;
wherein when executed by the one or more processors, the program instructions cause the apparatus to perform:
generating a system message, wherein, if the system message comprises second indication information, the second indication information indicates a first type, wherein the first type is a first type of a terminal device, wherein a terminal device of the first type is a reduced capability (REDCAP) terminal device, wherein the second indication information indicates whether a cell of a network device allows the terminal device of the first type to perform intra-frequency reselection, and wherein, if the system message does not comprise the second indication information, the system message indicates that camping on a cell of the network device is not allowed for a REDCAP terminal device; and
sending the system message to the terminal device.
10. The apparatus according to claim 9 , wherein the system message is a system information block SIB1.
11. The apparatus according to claim 9 , wherein a bandwidth supported by the reduced capability terminal devices is less than 20 MHz, and a peak data rate supported by the reduced capability terminal devices is in a range of 5 Mb/s to 10 Mb/s.
12. The apparatus according to claim 9 , wherein a value of the second indication information indicates that the intra-frequency reselection is allowed or not allowed.
13. An apparatus, comprising:
one or more processors; and
a non-transitory memory configured to store program instructions;
wherein when executed by the one or more processors, the program instructions cause the apparatus to perform:
receiving a system message from a network device, wherein, if the system message comprises second indication information, the second indication information indicates a first type, wherein the first type is a first type of a terminal device, wherein a terminal device of the first type is a reduced capability (REDCAP) terminal device, determining, based on the second indication information whether allow the terminal device of the first type to perform intra-frequency reselection; and
if the system message does not comprise the second indication information, determining that camping on a cell of the network device is not allowed for a REDCAP terminal device.
14. The apparatus according to claim 13 , wherein the system message is a system information block SIB1.
15. The apparatus according to claim 13 , further comprising:
determining that camping on a cell of the network device is allowed in response to the second indication information indicating that the cell of the network device allows terminal devices of the first type to camp on the cell of the network device; and
determining that camping on a cell of the network device is not allowed in response to the second indication information indicating that the cell of the network device does not allow terminal devices of the first type to camp on the cell of the network device.
16. The apparatus according to claim 13 , wherein a value of the second indication information indicates that the intra-frequency reselection is allowed or not allowed.