TECHNICAL FIELD

This application relates to the field of communications technologies, and in particular, to an information processing method and a terminal device.

BACKGROUND

During a discussion on a current fifth-generation (5th-Generation, 5G) mobile communications technology, coexistence of a new radio (New Radio, NR) carrier and a long term evolution (Long Term Evolution, LTE) carrier is a to-be-standardized topic. The international telecommunication union (International Telecommunication Union, ITU) defines three types of application scenarios for 5G and future mobile communications systems: enhanced mobile broadband (enhanced Mobile Broadband, eMBB), ultra-reliable and low latency communications (Ultra Reliable and Low Latency Communications, URLLC), and massive machine type communication (massive Machine Type Communications, mMTC).

Different services have different requirements for a mobile communications system. How to better support all data transmission requirements of a plurality of different services is a technical problem that needs to be resolved in a current 5G mobile communications system. For example, how to support both a URLLC service and an eMBB service is one of discussion hot topics of the current 5G mobile communications system. In a scenario in which the URLLC service and the eMBB service coexist, a base station needs to reserve some resources for a common control area of the eMBB service, and these resources reserved by the base stations are unavailable to UE of the URLLC service. For example, in an application scenario in which LTE and NR coexist, the base station needs to send a cell reference signal (Cell Reference Signal, CRS) on some symbols in an LTE system, and therefore resources for sending the CRS are the resources reserved by the base station in an NR system.

In conclusion, a specific solution to how a base station side and a terminal side determine these reserved resources is not provided in the prior art, and consequently indicating the reserved resources becomes a to-be-resolved problem.

SUMMARY

Embodiments provide an information processing method and a terminal device, so that a network device can indicate a reserved resource, and the terminal device can process the reserved resource.

To resolve the foregoing technical problem, various embodiments provide the following technical solutions.

According to a first aspect, an embodiment provides an information indication method. The method includes: determining, by a network device, a resource type of a reserved resource, where different resource types of the reserved resource are corresponding to different receiving and processing manners of a terminal device; generating, by the network device, configuration information of the reserved resource, where the configuration information is used to indicate type information of the resource type; and sending, by the network device, the configuration information of the reserved resource to the terminal device.

In this embodiment, the network device may configure the resource type of the reserved resource, and the network device sends the configuration information of the reserved resource to the terminal device, so that the network device can indicate the type of the reserved resource to the terminal device, and the terminal device can parse the configuration information of the reserved resource, to determine a receiving and processing manner used by the terminal device. In this embodiment, the network device may indicate the resource type of the reserved resource by using the configuration information of the reserved resource, so as to implement processing manners of the network device and the terminal device for the reserved resource.

In some embodiments, different resource types of the reserved resource are corresponding to different radio frequency processing manners of the terminal device. The terminal device may use the different radio frequency processing manners for the different resource types indicated by the network device. For example, the terminal device determines that quantities of radio frequency filters used for the different resource types are different, or the terminal device determines whether to perform radio frequency receiving at a specific frequency or some frequencies for the different resource types.

In some embodiments, the determining, by a network device, a resource type of a reserved resource includes: determining, by the network device, that the resource type of the reserved resource is a first-type reserved resource or a second-type reserved resource. In this embodiment, the resource type of the reserved resource includes at least the first-type reserved resource or the second-type reserved resource. For example, the network device first determines that the resource type of the reserved resource is the first-type reserved resource. For another example, the network device first determines that the resource type of the reserved resource is the second-type reserved resource. Then, the network device may clearly distinguish the different resource types of the reserved resource by determining the first-type reserved resource and the second-type reserved resource.

In some embodiments, the determining, by the network device, that the resource type of the reserved resource is a first-type reserved resource or a second-type reserved resource includes: receiving, by the network device, capability information of the terminal device that is reported by the terminal device; and determining, by the network device based on the capability information of the terminal device, that the resource type of the reserved resource is the first-type reserved resource or the second-type reserved resource. In this embodiment, the terminal device may report the capability information of the terminal device to the network device by using a wireless network. The network device receives the capability information of the terminal device, the network device parses the capability information to determine a terminal capability of the terminal device, and the network device determines, based on the terminal capability of the terminal device, a resource type that matches the terminal capability, so that the network device can determine a specific resource type of the reserved resource based on the capability information of the terminal device.

In some embodiments, the capability information of the terminal device includes at least one of the following information: information about a quantity of radio frequency filters supported by the terminal device, information about a center frequency of a radio frequency filter, information about a bandwidth supported by a radio frequency filter, and information about whether the terminal device has a frequency domain windowing capability.

In some embodiments, the determining, by the network device, that the resource type of the reserved resource is a first-type reserved resource or a second-type reserved resource includes: obtaining, by the network device, interference measurement information of the reserved resource; determining, by the network device based on the interference measurement information, an interference intensity corresponding to the reserved resource; and determining, by the network device based on the interference intensity corresponding to the reserved resource, that the resource type of the reserved resource is the first-type reserved resource or the second-type reserved resource. In this embodiment, the network device may obtain the interference measurement information of the reserved resource. The interference measurement information obtained by the network device may be obtained in an uplink interference measurement process, or may be obtained in a downlink interference measurement process. A detailed interference measurement process is not limited herein. After the network device obtains the interference measurement information, the network device may set an interference intensity threshold, to determine the interference intensity corresponding to the reserved resource, so as to determine, by using a level of the interference intensity, that an interference type of the reserved resource is a high interference type or a low interference type.

In some embodiments, the first-type reserved resource includes a radio frequency RF-level reserved resource, and the second-type reserved resource includes a baseband BB-level reserved resource; or the first-type reserved resource includes a high interference-type reserved resource, and the second-type reserved resource includes a low interference-type reserved resource.

In some embodiments, the sending, by the network device, the configuration information of the reserved resource to the terminal device includes: sending, by the network device, radio resource control RRC signaling to the terminal device; and when a state of a first information element IE in the RRC signaling is a first state, indicating the first-type reserved resource, or when a state of a first IE in the RRC signaling is a second state, indicating the second-type reserved resource. In this embodiment, the network device may indicate the configuration information of the reserved resource by using the RRC signaling. For example, the network device configures the first IE in the RRC signaling, and the first IE has a plurality of states. For example, the first IE may include the first state and the second state, and different states may indicate different types of reserved resources.

In some embodiments, the sending, by the network device, the configuration information of the reserved resource to the terminal device includes: sending, by the network device, downlink control information DCI to the terminal device; and when a state of a first field in the DCI is a third state, indicating the first-type reserved resource, or when a state of a first field in the DCI is a fourth state, indicating the second-type reserved resource. In this embodiment, the network device may indicate the configuration information of the reserved resource by using the DCI. For example, the network device configures the first field in the DCI, and the first field has a plurality of states. For example, the first field may include the third state and the fourth state, and different states may indicate different types of reserved resources.

In some embodiments, the sending, by the network device, the configuration information of the reserved resource to the terminal device includes: sending, by the network device, the configuration information of the reserved resource to the terminal device by using a system message, where the system message may include a master information block MIB, remaining minimum system information RMSI, or other system information SI. In this embodiment, the network device may indicate the configuration information of the reserved resource to the terminal device by using the system message, so that the terminal device can parse the system message, to obtain the configuration information of the reserved resource that is indicated by the network device.

In some embodiments, the method further includes: sending, by the network device, configuration information for shutdown to the terminal device, where the configuration information for shutdown is used to indicate whether the network device performs a shutdown behavior. In this embodiment, the network device may perform the shutdown behavior on some symbols. The shutdown behavior means that when there is no data on some time domain symbols that needs to be sent by a base station, the network device shuts down a power amplifier on these symbols, so as to reduce system power consumption. A smaller cell service load contributes to better power saving. The network device may indicate, to the terminal device by using the configuration information for shutdown, whether the network device performs the shutdown behavior.

In some embodiments, the method further includes: sending, by the network device, phase configuration information to the terminal device, where the phase configuration information is used to indicate whether an adjacent transmission phase is continuous. The adjacent transmission phase is a phase between adjacent data channels, or a phase between adjacent pilots, or a phase between a data channel and a pilot that are adjacent. The network device may indicate, to the terminal device by using the phase configuration information, whether the adjacent transmission phase is continuous, so that the terminal device can determine, by using the phase configuration information, whether joint estimation can be performed.

In some embodiments, the reserved resource is a time-frequency resource that is reserved by the network device for another terminal device having a different device type from the terminal device.

In some embodiments, the method further includes: determining, by the network device, a frequency domain location of the reserved resource, where in this implementation scenario, the configuration information of the reserved resource is further used to indicate the frequency domain location of the reserved resource.

According to a second aspect, an embodiment provides an information indication method, including: receiving, by a terminal device, configuration information of a reserved resource that is sent by a network device; determining, by the terminal device, a resource type of the reserved resource based on the configuration information of the reserved resource; and determining, by the terminal device, a receiving and processing manner on the reserved resource based on the resource type.

In this embodiment, the terminal device may receive the configuration information of the reserved resource that is sent by the network device, and then the terminal device parses the configuration information of the reserved resource, to determine the receiving and processing manner used by the terminal device. In this embodiment, the network device may indicate the resource type of the reserved resource by using the configuration information of the reserved resource, so as to implement processing manners of the network device and the terminal device for the reserved resource.

In some embodiments, the determining, by the terminal device, a receiving and processing manner on the reserved resource based on the resource type includes: determining, by the terminal device, a radio frequency processing manner on the reserved resource based on the resource type. In this embodiment, different resource types of the reserved resource are corresponding to different radio frequency processing manners of the terminal device. The terminal device may use the different radio frequency processing manners for the different resource types indicated by the network device. For example, the terminal device determines that quantities of radio frequency filters used for the different resource types are different, or the terminal device determines whether to perform radio frequency receiving at a specific frequency or some frequencies for the different resource types, or bandwidths of radio frequency filters used by the terminal device are different.

In some embodiments, the receiving, by a terminal device, configuration information of a reserved resource that is sent by a network device includes: receiving, by the terminal device, radio resource control RRC signaling sent by the network device; parsing, by the terminal device, a first information element IE in the RRC signaling; and when a state of the first IE is a first state, determining that the reserved resource is a first-type reserved resource, or when a state of the first IE is a second state, determining, by the terminal device, that the reserved resource is a second-type reserved resource. In this embodiment, the network device may indicate the configuration information of the reserved resource by using the RRC signaling. For example, the network device configures the first IE in the RRC signaling, and the first IE has a plurality of states. For example, the first IE may include the first state and the second state, and different states may indicate different types of reserved resources.

In some embodiments, the receiving, by a terminal device, configuration information of a reserved resource that is sent by a network device includes: receiving, by the terminal device, downlink control information DCI sent by the network device; and the determining, by the terminal device, a resource type of the reserved resource based on the configuration information of the reserved resource includes: parsing, by the terminal device, a first field in the DCI; and when a state of the first field is a third state, determining that the reserved resource is the first-type reserved resource, or when a state of the first field is a fourth state, determining that the reserved resource is the second-type reserved resource. In this embodiment, the network device may indicate the configuration information of the reserved resource by using the DCI. For example, the network device configures the first field in the DCI, and the first field has a plurality of states. For example, the first field may include the third state and the fourth state, and different states may indicate different types of reserved resources.

In some embodiments, the receiving, by a terminal device, configuration information of a reserved resource that is sent by a network device includes: receiving, by the terminal device, a system message sent by the network device, where the system message may include a master information block MIB, remaining minimum system information RMSI, or another system information block SIB; and parsing, by the terminal device, the system message, to obtain the configuration information of the reserved resource. In this embodiment, the network device may indicate the configuration information of the reserved resource to the terminal device by using the system message, so that the terminal device can parse the system message, to obtain the configuration information of the reserved resource that is indicated by the network device.

In some embodiments, before the receiving, by a terminal device, configuration information of a reserved resource that is sent by a network device, the method further includes: reporting, by the terminal device, capability information of the terminal device to the network device.

In some embodiments, the method further includes: receiving, by the terminal device, configuration information for shutdown sent by the network device; and determining, by the terminal device based on the configuration information for shutdown, whether the network device performs a shutdown behavior. In this embodiment, the network device may perform the shutdown behavior on some symbols. The shutdown behavior means that when there is no data on some time domain symbols that needs to be sent by a base station, the network device shuts down a power amplifier on these symbols, so as to reduce system power consumption. A smaller cell service load contributes to better power saving. The network device may indicate, to the terminal device by using the configuration information for shutdown, whether the network device performs the shutdown behavior.

In some embodiments, the method further includes: receiving, by the terminal device, phase configuration information sent by the network device; and determining, by the terminal device based on the phase configuration information, whether an adjacent transmission phase is continuous. The adjacent transmission phase is a phase between adjacent data channels, or a phase between adjacent pilots, or a phase between a data channel and a pilot that are adjacent. The network device may indicate, to the terminal device by using the phase configuration information, whether the adjacent transmission phase is continuous, so that the terminal device can determine, by using the phase configuration information, whether joint estimation can be performed.

In some embodiments, the reserved resource is a time-frequency resource that is reserved by the network device for another terminal device having a different device type from the terminal device.

In some embodiments, the method further includes: determining, by the terminal device based on the configuration information of the reserved resource, a frequency domain location of the reserved resource. In this embodiment, when the network device determines the resource type of the reserved resource, the network device may further determine the frequency domain location of the reserved resource, and the configuration information of the reserved resource that is generated by the network device may indicate both type information of the resource type and the frequency domain location of the reserved resource.

According to a third aspect, an embodiment provides a network device. The network device includes: a resource type determining module, configured to determine that a resource type of a reserved resource is a first-type reserved resource or a second-type reserved resource, where different resource types of the reserved resource are corresponding to different radio frequency processing manners of a terminal device; a configuration information generation module, configured to generate configuration information of the reserved resource, where the configuration information is used to indicate type information of the resource type; and a sending module, configured to send the configuration information of the reserved resource to the terminal device.

In some embodiments, the resource type determining module includes: a capability information receiving module, configured to receive capability information of the terminal device that is reported by the terminal device, where the capability information of the terminal device includes at least one of the following information: information about a quantity of radio frequency filters supported by the terminal device, information about a center frequency of a radio frequency filter, information about a bandwidth supported by a radio frequency filter, and information about whether the terminal device has a frequency domain windowing capability; and a first resource type determining submodule, configured to determine, based on the capability information of the terminal device, that the resource type of the reserved resource is the first-type reserved resource or the second-type reserved resource.

In some embodiments, the resource type determining module includes: an interference measurement information obtaining module, configured to obtain interference measurement information of the reserved resource; an interference intensity determining module, configured to determine, based on the interference measurement information, an interference intensity corresponding to the reserved resource; and a second resource type determining submodule, configured to determine, based on the interference intensity corresponding to the reserved resource, that the resource type of the reserved resource is the first-type reserved resource or the second-type reserved resource.

In some embodiments, the sending module is specifically configured to: send radio resource control RRC signaling to the terminal device; and when a state of a first information element IE in the RRC signaling is a first state, indicate the first-type reserved resource, or when a state of a first IE in the RRC signaling is a second state, indicate the second-type reserved resource.

In some embodiments, the sending module is specifically configured to: send downlink control information DCI to the terminal device; and when a state of a first field in the DCI is a third state, indicate the first-type reserved resource, or when a state of a first field in the DCI is a fourth state, indicate the second-type reserved resource.

In some embodiments, the first-type reserved resource includes a radio frequency RF-level reserved resource, and the second-type reserved resource includes a baseband BB-level reserved resource; or the first-type reserved resource includes a high interference-type reserved resource, and the second-type reserved resource includes a low interference-type reserved resource.

In some embodiments, the sending module is further configured to send configuration information for shutdown to the terminal device, where the configuration information for shutdown is used to indicate whether the network device performs a shutdown behavior.

In some embodiments, the sending module is further configured to send phase configuration information to the terminal device, where the phase configuration information is used to indicate whether an adjacent transmission phase is continuous.

In some embodiments, the reserved resource is a time-frequency resource that is reserved by the network device for another terminal device having a different device type from the terminal device.

In the third aspect of this application, composition modules of the network device may further perform the steps described in the first aspect and the possible implementations. For details, refer to the descriptions in the first aspect and the possible implementations.

According to a fourth aspect, an embodiment provides a terminal device, including: a receiving module, configured to receive configuration information of a reserved resource that is sent by a network device; a configuration information parsing module, configured to determine, based on the configuration information of the reserved resource, that a resource type of the reserved resource is a first-type reserved resource or a second-type reserved resource; and a radio frequency processing manner determining module, configured to determine a radio frequency processing manner on the reserved resource based on the resource type.

In a possible design of the fourth aspect of this application, the receiving module is specifically configured to receive radio resource control RRC signaling sent by the network device; and the configuration information parsing module is specifically configured to: parse a first information element IE in the RRC signaling; and when a state of the first IE is a first state, determine that the reserved resource is the first-type reserved resource, or when a state of the first IE is a second state, determine that the reserved resource is the second-type reserved resource.

In a possible design of the fourth aspect of this application, the receiving module is specifically configured to receive downlink control information DCI sent by the network device; and the configuration information parsing module is specifically configured to: parse a first field in the DCI; and when a state of the first field is a third state, determine that the reserved resource is the first-type reserved resource, or when a state of the first field is a fourth state, determine that the reserved resource is the second-type reserved resource.

In a possible design of the fourth aspect of this application, the first-type reserved resource includes a radio frequency RF-level reserved resource, and the second-type reserved resource includes a baseband BB-level reserved resource; or the first-type reserved resource includes a high interference-type reserved resource, and the second-type reserved resource includes a low interference-type reserved resource.

In a possible design of the fourth aspect of this application, the terminal device further includes a sending module, where the sending module is configured to: before the receiving module receives the configuration information of the reserved resource that is sent by the network device, report capability information of the terminal device to the network device.

In a possible design of the fourth aspect of this application, the receiving module is further configured to receive configuration information for shutdown sent by the network device; and the configuration information parsing module is further configured to determine, based on the configuration information for shutdown, whether the network device performs a shutdown behavior.

In a possible design of the fourth aspect of this application, the receiving module is further configured to receive phase configuration information sent by the network device; and the configuration information parsing module is further configured to determine, based on the phase configuration information, whether an adjacent transmission phase is continuous.

In a possible design of the fourth aspect of this application, the reserved resource is a time-frequency resource that is reserved by the network device for another terminal device having a different device type from the terminal device.

In the fourth aspect of this application, composition modules of the terminal device may further perform the steps described in the second aspect and the possible implementations. For details, refer to the descriptions in the second aspect and the possible implementations.

According to a fifth aspect, an embodiment further provides a terminal device. The terminal device includes a processor, a memory, a transmitter, and a receiver, where

the receiver is configured to receive configuration information of a reserved resource that is sent by a network device;

the memory is configured to store data and instructions of the receiver and the processor; and

the processor is configured to: determine, based on the configuration information of the reserved resource, that a resource type of the reserved resource is a first-type reserved resource or a second-type reserved resource; and determine a radio frequency processing manner on the reserved resource based on the resource type.

In a possible design of the fifth aspect of this application, the receiver is specifically configured to receive radio resource control RRC signaling sent by the network device; and

the processor is specifically configured to: parse a first information element IE in the RRC signaling; and when a state of the first IE is a first state, determine that the reserved resource is the first-type reserved resource, or when a state of the first IE is a second state, determine that the reserved resource is the second-type reserved resource.

In a possible design of the fifth aspect of this application, the receiver is specifically configured to receive downlink control information DCI sent by the network device; and

the processor is specifically configured to: parse a first field in the DCI; and when a state of the first field is a third state, determine that the reserved resource is the first-type reserved resource, or when a state of the first field is a fourth state, determine that the reserved resource is the second-type reserved resource.

In a possible design of the fifth aspect of this application, the first-type reserved resource stored in the memory includes a radio frequency RF-level reserved resource, and the second-type reserved resource includes a baseband BB-level reserved resource; or the first-type reserved resource includes a high interference-type reserved resource, and the second-type reserved resource includes a low interference-type reserved resource.

In a possible design of the fifth aspect of this application, the transmitter is configured to: before the receiver receives the configuration information of the reserved resource that is sent by the network device, report capability information of the terminal device to the network device.

In a possible design of the fifth aspect of this application, the capability information of the terminal device that is stored in the memory includes at least one of the following information: information about a quantity of radio frequency filters supported by the terminal device, information about a center frequency of a radio frequency filter, information about a bandwidth supported by a radio frequency filter, and information about whether the terminal device has a frequency domain windowing capability.

In a possible design of the fifth aspect of this application, the receiver is further configured to receive configuration information for shutdown sent by the network device; and

the processor is further configured to determine, based on the configuration information for shutdown, whether the network device performs a shutdown behavior.

In a possible design of the fifth aspect of this application, the receiver is further configured to receive phase configuration information sent by the network device; and

the processor is further configured to determine, based on the phase configuration information, whether an adjacent transmission phase is continuous.

In a possible design of the fifth aspect of this application, the reserved resource stored in the memory is a time-frequency resource that is reserved by the network device for another terminal device having a different device type from the terminal device.

According to a sixth aspect, an embodiment provides a communications apparatus. The communications apparatus may include an entity such as a terminal device or a chip, and the communications apparatus includes a processor and a memory. The memory is configured to store an instruction, and the processor is configured to execute the instruction in the memory, so that the communications apparatus performs the method in the first aspect or the second aspect.

According to a seventh aspect, an embodiment provides a computer readable storage medium, where the computer-readable storage medium stores an instruction, and when the instruction runs on a computer, the computer performs the method in the foregoing aspects.

According to an eighth aspect, an embodiment provides a computer program product including an instruction, where when the instruction runs on a computer, the computer performs the method in the foregoing aspects.

