CN111385858A

CN111385858A - Communication method and communication device

Info

Publication number: CN111385858A
Application number: CN201910263512.XA
Authority: CN
Inventors: 薛丽霞; 布莱恩·克拉松; 张旭; 陈铮
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2018-12-29
Filing date: 2019-04-02
Publication date: 2020-07-07
Anticipated expiration: 2039-04-02
Also published as: CN111385858B

Abstract

The application provides a communication method and a communication device, wherein the communication method comprises the following steps: determining a first time domain resource, wherein the time interval between the first time domain resource and a second time domain resource is greater than or equal to a first threshold value; sending a first Physical Downlink Control Channel (PDCCH) to the terminal equipment on the second time domain resource, wherein the first PDCCH is used for indicating the first time domain resource; and transmitting a first signal to the terminal equipment on the first time domain resource. The communication method can ensure that the terminal equipment normally receives downlink signals while saving electricity, thereby leading the terminal equipment to reasonably save electricity.

Description

Communication method and communication device

Technical Field

The present application relates to the field of communications, and more particularly, to a communication method and a communication apparatus.

Background

In release 15(release 15) of the fifth generation mobile communication system (the 5th generation, 5G), cross-slot scheduling (cross-slot scheduling) of a Physical Downlink Shared Channel (PDSCH) has been made available, i.e., a Physical Downlink Control Channel (PDCCH) may be located in a different time slot from its scheduled PDSCH.

Cross-slot scheduling is more conducive to power saving for terminal equipment (UE) than simultaneous slot scheduling. For example, for the simultaneous slot scheduling, during the PDCCH decoding (i.e. before decoding and decoding the DCI), the UE cannot know whether the data in the period of time is scheduled, so that the downlink data receiving buffer in the period of time must be buffered, and front end modules such as a radio frequency module are kept open, and accordingly, the UE consumes more energy; for the cross-time-slot scheduling, the UE can know whether the time slot has scheduling in advance by at least one time slot, and if the time slot has no scheduling, the UE can close the front-end modules such as the downlink data radio frequency and the downlink data receiving buffer to save power.

However, there may be some special cases, for example, the PDCCH may trigger an aperiodic channel state information reference signal (a-CSI-RS), and thus the UE needs to receive the a-CSI-RS; alternatively, at some PDCCH detection occasions (monitoring occasion), the UE needs to detect the first system message block (SIB 1), the random access response (ra), or the terminal equipment collision resolution identity (tei — rs). In these cases, the UE needs to receive downlink data in the timeslot, which is not favorable for power saving of the UE.

Disclosure of Invention

The application provides a communication method and a communication device, which can ensure that terminal equipment normally receives downlink signals while saving power, so that the terminal equipment reasonably saves power.

In a first aspect, a communication method is provided, including: determining a first time domain resource, wherein the time interval between the first time domain resource and a second time domain resource is greater than or equal to a first threshold value; sending a first Physical Downlink Control Channel (PDCCH) to the terminal equipment on the second time domain resource, wherein the first PDCCH is used for indicating the first time domain resource; and transmitting a first signal to the terminal equipment on the first time domain resource.

According to the communication method in the embodiment of the application, the first signal is sent to the terminal device on the first time domain resource, and because the time interval between the first time domain resource and the second time domain resource is greater than or equal to a first threshold, the terminal device can be in a power saving mode at the time interval between the first time domain resource and the second time domain resource, or at least in a power saving mode at the time after the first time domain resource in the time slot where the first time domain resource is located, so that the terminal device can be ensured to normally receive the downlink signal while saving power, and the terminal device can reasonably save power.

In one possible implementation, before the determining the first time domain resource, the communication method further includes: sending first information to the terminal device, wherein the first information is used for updating a plurality of first parameters of the first time domain resources; wherein the first time domain resource is determined by one of the updated first parameters.

In a possible implementation manner, the first parameter is a slot offset, and the slot offset is a number of slots in which the first time domain resource is offset with respect to the second time domain resource.

In one possible implementation, the first information is one of: the updated slot offset, the difference between the updated slot offset and the original slot offset, and the first threshold.

In one possible implementation, the communication method further includes: and sending the first threshold value to the terminal equipment.

In one possible implementation, the communication method further includes: and sending second information to the terminal device, where the second information is used to indicate that the number of time slots in which the first time domain resource is shifted relative to the second time domain resource is greater than or equal to the first threshold, or to indicate that the terminal device is in a power saving mode in a time slot between the first time domain resource and the second time domain resource, or to indicate that the terminal device is in a power saving mode at least in a time after the first time domain resource in the time slot in which the first time domain resource is located.

In one possible implementation, the communication method further includes: receiving power saving request signaling from the terminal device; transmitting at least one of the first information, the first threshold, and the second information to the terminal device in response to the power saving request signaling.

In a possible implementation manner, the first signal is carried in a physical downlink shared channel PDSCH.

In one possible implementation, the first signal is a first system information block SIB1, a random access response, or a terminal equipment collision resolution identity.

In one possible implementation, the first signal is an aperiodic channel state information reference signal a-CSI-RS.

In one possible implementation, the communication method further includes: receiving type information or capability information of the terminal equipment from the terminal equipment; and determining the first threshold value according to the type information or the capability information.

In a second aspect, a communication method is provided, including: receiving a first Physical Downlink Control Channel (PDCCH) sent by network equipment on a second time domain resource; determining a first time domain resource according to the first PDCCH, wherein the time interval between the first time domain resource and the second time domain resource is greater than or equal to a first threshold value; and receiving a first signal transmitted by the network equipment on the first time domain resource.

According to the communication method in the embodiment of the application, a first physical downlink control channel PDCCH sent by network equipment is received on a second time domain resource, a first signal sent by the network equipment is received on a first time domain resource, the time interval between the first time domain resource and the second time domain resource is greater than or equal to a first threshold value, and the terminal equipment can be in a power-saving mode at the time interval between the first time domain resource and the second time domain resource or at least can be in the power-saving mode in the time after the first time domain resource in the time slot where the first time domain resource is located, so that the terminal equipment can be ensured to normally receive downlink signals while saving power, and the terminal equipment can reasonably save power.

In a possible implementation manner, before the receiving, on the second time domain resource, the first physical downlink control channel PDCCH sent by the network device, the communication method further includes: receiving first information sent by the network device, wherein the first information is used for updating a plurality of first parameters of the first time domain resources; wherein the first time domain resource is determined by one of the updated first parameters.

In one possible implementation, the communication method further includes: receiving the first threshold value sent by the network equipment.

In one possible implementation, the communication method further includes: receiving second information sent by the network device, where the second information is used to indicate that the number of time slots in which the first time domain resource is shifted relative to the second time domain resource is greater than or equal to the first threshold, or to indicate that the terminal device is in a power saving mode in a time slot between the first time domain resource and the second time domain resource, or at least in a power saving mode in a time slot in which the first time domain resource is located after the first time domain resource, or to indicate that the terminal device is in a power saving mode in a time slot in which the first time domain resource is located at least after the first time domain resource.

In one possible implementation, the communication method further includes: sending a power saving request signaling to the network device, where the power saving request signaling is used to trigger the network device to send at least one of the first information, the first threshold, and the second information.

In one possible implementation, the communication method further includes: sending the type information or the capability information of the terminal equipment to the network equipment; the type information or the capability information is used for informing the network equipment to determine the first threshold value according to the type information or the capability information.

In a third aspect, a communication method is provided, including: determining a first time domain resource, the first time domain resource being one of the candidate first time domain resources, the number of time slots of each candidate first time domain resource that is offset with respect to a second time domain resource being greater than or equal to a first threshold; sending a first Physical Downlink Control Channel (PDCCH) to the terminal equipment on the second time domain resource, wherein the first PDCCH is used for indicating the first time domain resource; and transmitting a first signal to the terminal equipment on the first time domain resource.

According to the communication method in the embodiment of the application, a first time domain resource used for sending a first signal is determined among a plurality of candidate first time domain resources, the first signal is sent to the terminal device on the first time domain resource, and because the number of time slots of the first time domain resource offset relative to a second time domain resource is greater than or equal to a first threshold, the terminal device can be in a power saving mode in a time slot between the first time domain resource and the second time domain resource or can be in a power saving mode at least in a time after the first time domain resource in the time slot in which the first time domain resource is located, the terminal device can be guaranteed to normally receive a downlink signal while saving power, and therefore the terminal device can reasonably save power.

In one possible implementation, the determining a plurality of candidate first time domain resources includes: determining the plurality of candidate first time domain resources according to first configuration information, the first configuration information being predefined; or sending the first configuration information to the terminal equipment; wherein the first configuration information is used to indicate the candidate first time domain resources, and the first configuration information includes a slot offset of each candidate first time domain resource, where the slot offset is a number of slots of the candidate first time domain resource that are offset with respect to the second time domain resource.

In one possible implementation, the communication method further includes: the network equipment receives power saving request signaling from the terminal equipment; determining a first time domain resource for transmitting a first signal among the plurality of candidate first time domain resources in response to the power saving request message.

In one possible implementation, the communication method further includes: and sending third information to the terminal equipment, wherein the third information is used for indicating that the terminal equipment is in a power saving mode in a time slot between the first time domain resource and the second time domain resource or at least in a time after the first time domain resource in the time slot where the first time domain resource is located.

In a fourth aspect, a communication method is provided, including: receiving a first Physical Downlink Control Channel (PDCCH) sent by network equipment on a second time domain resource; determining a first time domain resource according to the first PDCCH, wherein the number of time slots of the first time domain resource which is deviated relative to the second time domain resource is larger than or equal to a first threshold value; and receiving a first signal transmitted by the network equipment on the first time domain resource.

According to the communication method in the embodiment of the application, a first Physical Downlink Control Channel (PDCCH) sent by network equipment is received on a second time domain resource, a first signal sent by the network equipment is received on a first time domain resource, the number of time slots of the first time domain resource which are deviated relative to a second time domain resource is larger than or equal to a first threshold, and the terminal equipment can be in a power saving mode in the time slot between the first time domain resource and the second time domain resource or at least can be in a power saving mode in the time behind the first time domain resource in the time slot where the first time domain resource is located, so that the terminal equipment can be ensured to normally receive downlink signals while saving power, and the terminal equipment can reasonably save power.

In a possible implementation manner, the determining a first time domain resource according to the first PDCCH includes: determining the first time domain resource according to first configuration information and the first PDCCH; wherein the first configuration information is predefined or received from the network device, the first configuration information indicating the plurality of candidate first time domain resources, the first configuration information including a slot offset for each candidate first time domain resource, the slot offset being a number of slots of the candidate first time domain resource that are offset with respect to the second time domain resource.

In one possible implementation, the communication method further includes: and sending the type information or the capability information of the terminal equipment to the network equipment.

In one possible implementation, the communication method further includes: sending a power saving request signaling to the network device, the power saving request signaling being used for triggering the network device to determine a first time domain resource used for sending a first signal among the plurality of candidate first time domain resources.

In one possible implementation, the communication method further includes: and receiving third information from the network equipment, wherein the third information is used for indicating that the terminal equipment is in a power saving mode in a time slot between the first time domain resource and the second time domain resource or at least in a time after the first time domain resource in the time slot in which the first time domain resource is located.

In a fifth aspect, a communication apparatus is provided, where the apparatus may be a network device or a chip within the network device. The apparatus may include a processing unit and a transceiver unit. When the apparatus is a network device, the processing unit may be a processor, and the transceiving unit may be a transceiver; the network device may further include a storage unit, which may be a memory; the storage unit is configured to store instructions, and the processing unit executes the instructions stored by the storage unit to enable the network device to perform the method of the first aspect or any one of the possible implementation manners. When the apparatus is a chip within a network device, the processing unit may be a processor, and the transceiving unit may be an input/output interface, a pin, a circuit, or the like; the processing unit executes instructions stored in a storage unit (e.g., a register, a cache, etc.) within the chip or a storage unit (e.g., a read-only memory, a random access memory, etc.) external to the chip within the network device, so as to cause the network device to perform the method of the first aspect or any one of the possible implementations.

In a sixth aspect, a communication apparatus is provided, which may be a terminal device or a chip in the terminal device. The apparatus may include a processing unit and a transceiver unit. When the apparatus is a terminal device, the processing unit may be a processor, and the transceiving unit may be a transceiver; the terminal device may further include a storage unit, which may be a memory; the storage unit is configured to store instructions, and the processing unit executes the instructions stored by the storage unit to enable the terminal device to execute the instructions of the method in the second aspect or any one of the possible implementation manners. When the apparatus is a chip in a terminal device, the processing unit may be a processor, and the transceiving unit may be an input/output interface, a pin, a circuit, or the like; the processing unit executes instructions stored by a storage unit, which may be a storage unit within the chip (e.g., a register, a cache, etc.) or a storage unit external to the chip within the terminal device (e.g., a read-only memory, a random access memory, etc.), so as to cause the terminal device to execute the instructions of the method of the second aspect or any one of the possible implementations.

In a seventh aspect, a communication apparatus is provided, where the apparatus may be a network device or a chip in the network device. The apparatus may include a processing unit and a transceiver unit. When the apparatus is a network device, the processing unit may be a processor, and the transceiving unit may be a transceiver; the network device may further include a storage unit, which may be a memory; the storage unit is configured to store instructions, and the processing unit executes the instructions stored by the storage unit to cause the network device to execute the instructions of the method in the third aspect or any one of the possible implementation manners. When the apparatus is a chip within a network device, the processing unit may be a processor, and the transceiving unit may be an input/output interface, a pin, a circuit, or the like; the processing unit executes instructions stored by a storage unit, which may be a storage unit (e.g., register, cache, etc.) within the chip or a storage unit (e.g., read-only memory, random access memory, etc.) external to the chip, so as to cause the network device to execute the instructions of the method in the third aspect or any one of the possible implementations.

In an eighth aspect, a communication apparatus is provided, which may be a terminal device or a chip in the terminal device. The apparatus may include a processing unit and a transceiver unit. When the apparatus is a terminal device, the processing unit may be a processor, and the transceiving unit may be a transceiver; the terminal device may further include a storage unit, which may be a memory; the storage unit is configured to store instructions, and the processing unit executes the instructions stored by the storage unit to enable the terminal device to execute the instructions of the method in the fourth aspect or any one of the possible implementation manners. When the apparatus is a chip in a terminal device, the processing unit may be a processor, and the transceiving unit may be an input/output interface, a pin, a circuit, or the like; the processing unit executes instructions stored by a storage unit, which may be a storage unit (e.g. register, cache, etc.) within the chip or a storage unit (e.g. read-only memory, random access memory, etc.) external to the chip, so as to cause the terminal device to execute the instructions of the method of the fourth aspect or any one of its possible implementations.

In a ninth aspect, the present application provides a computer-readable storage medium. The computer readable storage medium has stored therein program code for execution by the communication device. The program code comprises instructions for carrying out the method of the first aspect or any one of its possible implementations.

In a tenth aspect, the present application provides a computer-readable storage medium. The computer readable storage medium has stored therein program code for execution by the communication device. The program code comprises instructions for carrying out the method of the second aspect or any one of its possible implementations.

In an eleventh aspect, the present application provides a computer-readable storage medium. The computer readable storage medium has stored therein program code for execution by the communication device. The program code comprises instructions for carrying out the method of the third aspect or any one of its possible implementations.

In a twelfth aspect, the present application provides a computer-readable storage medium. The computer readable storage medium has stored therein program code for execution by the communication device. The program code comprises instructions for carrying out the method of the fourth aspect or any one of its possible implementations.

In a thirteenth aspect, the present application provides a computer program product containing instructions. The computer program product, when run on a communication apparatus, causes the apparatus to perform the method of the first aspect or any one of its possible implementations.

In a fourteenth aspect, the present application provides a computer program product containing instructions. The computer program product, when run on a communication apparatus, causes the apparatus to perform the method of the second aspect or any one of its possible implementations.

In a fifteenth aspect, the present application provides a computer program product containing instructions. The computer program product, when run on a communication apparatus, causes the apparatus to perform the method of the third aspect or any one of its possible implementations.

In a sixteenth aspect, the present application provides a computer program product comprising instructions. The computer program product, when run on a communication apparatus, causes the apparatus to perform the method of the fourth aspect or any one of its possible implementations.

In a seventeenth aspect, the present application provides a communication method, comprising: determining a plurality of allocation modes of time domain resources for transmitting a physical downlink data channel (PDSCH); determining a first time domain resource, wherein the first time domain resource corresponds to a first allocation mode, the first allocation mode is one of the allocation modes, the time slot offset of the first time domain resource and a second time domain resource is greater than or equal to a second threshold, and the second threshold is an integer greater than 0; sending a first Physical Downlink Control Channel (PDCCH) to a plurality of terminal devices on the second time domain resource, wherein the first PDCCH is used for indicating the first time domain resource; transmitting a first PDSCH to the plurality of terminal devices on the first time domain resources.

In one possible implementation manner, the determining the first time domain resource includes: the plurality of allocation manners are protocol predefined; or after the determining the plurality of allocation manners of the first time domain resources, the communication method further includes: sending the plurality of allocation modes to the plurality of terminal devices; and the time slot offset in each of the multiple allocation manners is the time slot offset of the time domain resource corresponding to the allocation manner relative to the second time domain resource.

In one possible implementation manner, the determining the first time domain resource includes: when the time slot offset in the first allocation mode is smaller than the second threshold, taking the second threshold as the time slot offset of the first time domain resource and the second time domain resource, and determining the first time domain resource according to the second threshold, the second time domain resource and other parameters except the time slot offset in the first allocation mode; and/or when the time slot offset in the first allocation mode is greater than or equal to the second threshold, determining the first time domain resource according to the second time domain resource and the first allocation mode.

In one possible implementation, the communication method further includes: and sending the second threshold value to the plurality of terminal devices through a system message.

In one possible implementation, the communication method further includes: and sending second information to the plurality of terminal devices, wherein the second information is used for indicating that the number of the time slots of the first time domain resource which is offset relative to the second time domain resource is greater than or equal to the second threshold value.

In a possible implementation manner, the message carried in the first PDSCH is a system message or a paging message.

In one possible implementation, the communication method further includes: receiving type information or capability information of the plurality of terminal devices from the plurality of terminal devices; and determining the second threshold value according to the type information or the capability information.

In an eighteenth aspect, a communication method is provided, including: acquiring various allocation modes of time domain resources for transmitting a physical downlink data channel (PDSCH); receiving a first Physical Downlink Control Channel (PDCCH) sent by network equipment on a second time domain resource; determining a first time domain resource according to the first PDCCH and a first allocation mode, wherein the first allocation mode is one of the allocation modes, the time slot offset between the first time domain resource and the second time domain resource is greater than or equal to a second threshold value, and the second threshold value is an integer greater than 0; and receiving a first physical downlink data channel (PDSCH) sent by the network equipment on the first time domain resource.

In one possible implementation, the plurality of allocation manners are protocol predefined or received from the network device; and the time slot offset in each of the multiple allocation manners is the time slot offset of the time domain resource corresponding to the allocation manner relative to the second time domain resource.

In one possible implementation manner, the determining a first time domain resource according to the first PDCCH and a first allocation formula includes: when the time slot offset between the first time domain resource and the second time domain resource indicated by the first PDCCH is smaller than the second threshold, taking the second threshold as the time slot offset between the first time domain resource and the second time domain resource, and determining the first time domain resource according to the second threshold, the second time domain resource and other parameters except the time slot offset in the first allocation mode; and/or when the time slot offset between the first time domain resource indicated by the first PDCCH and the second time domain resource is greater than or equal to the second threshold, determining the first time domain resource according to the second time domain resource and the first allocation mode.

In one possible implementation, the communication method further includes: and receiving the second threshold value sent by the network equipment through a system message.

In one possible implementation, the communication method further includes: receiving second information sent by the network device, where the second information is used to indicate that the number of time slots of the first time domain resource offset from the second time domain resource is greater than or equal to the second threshold.

In one possible implementation, the communication method further includes: sending the type information or the capability information of the terminal equipment to the network equipment; wherein the type information or the capability information is used for informing the network device to determine the second threshold according to the type information or the capability information.

In a nineteenth aspect, there is provided a communication apparatus comprising: a determining module, configured to determine multiple allocation manners of time domain resources for sending a physical downlink data channel PDSCH; the determining module is further configured to determine a first time domain resource, where the first time domain resource corresponds to a first allocation manner, the first allocation manner is one of the multiple allocation manners, a timeslot offset between the first time domain resource and a second time domain resource is greater than or equal to a second threshold, and the second threshold is an integer greater than 0; a sending module, configured to send a first physical downlink control channel PDCCH to a plurality of terminal devices on the second time domain resource, where the first PDCCH is used to indicate the first time domain resource; the transmitting module is further configured to transmit the first PDSCH to the plurality of terminal devices on the first time domain resource.

In one possible implementation, the plurality of allocation manners are protocol predefined; or the sending module is further configured to: sending the plurality of allocation modes to the plurality of terminal devices; and the time slot offset in each of the multiple allocation manners is the time slot offset of the time domain resource corresponding to the allocation manner relative to the second time domain resource.

In a possible implementation manner, the determining module is specifically configured to: when the time slot offset in the first allocation mode is smaller than the second threshold, taking the second threshold as the time slot offset of the first time domain resource and the second time domain resource, and determining the first time domain resource according to the second threshold, the second time domain resource and other parameters except the time slot offset in the first allocation mode; and/or the determining module is specifically configured to: and when the time slot offset in the first allocation mode is greater than or equal to the second threshold, determining the first time domain resource according to the second time domain resource and the first allocation mode.

In one possible implementation manner, the sending module is further configured to: and sending the second threshold value to the plurality of terminal devices through a system message.

In one possible implementation manner, the sending module is further configured to: and sending second information to the plurality of terminal devices, wherein the second information is used for indicating that the number of the time slots of the first time domain resource which is offset relative to the second time domain resource is greater than or equal to the second threshold value.

In one possible implementation manner, the communication apparatus further includes a receiving module configured to: receiving type information or capability information of the plurality of terminal devices from the plurality of terminal devices; the determining module is further configured to determine the second threshold according to the type information or the capability information.

In a twentieth aspect, there is provided a communication apparatus comprising: the system comprises a determining module, a transmitting module and a receiving module, wherein the determining module is used for acquiring various allocation modes of time domain resources used for transmitting a physical downlink data channel (PDSCH); a sending module, configured to receive, on a second time domain resource, a first physical downlink control channel PDCCH sent by a network device; the determining module is further configured to determine a first time domain resource according to the first PDCCH and a first allocation formula, where the first allocation formula is one of the multiple allocation formulas, a time slot offset between the first time domain resource and the second time domain resource is greater than or equal to a second threshold, and the second threshold is an integer greater than 0; the sending module is further configured to receive, on the first time domain resource, a first physical downlink data channel PDSCH sent by the network device.

In a possible implementation manner, the determining module is specifically configured to: when the time slot offset between the first time domain resource and the second time domain resource indicated by the first PDCCH is smaller than the second threshold, taking the second threshold as the time slot offset between the first time domain resource and the second time domain resource, and determining the first time domain resource according to the second threshold, the second time domain resource and other parameters except the time slot offset in the first allocation mode; and/or the determining module is specifically configured to: and when the time slot offset between the first time domain resource indicated by the first PDCCH and the second time domain resource is greater than or equal to the second threshold, determining the first time domain resource according to the second time domain resource and the first allocation mode.

In one possible implementation manner, the communication apparatus further includes a receiving module configured to: and receiving the second threshold value sent by the network equipment through a system message.

In one possible implementation manner, the receiving module is further configured to: receiving second information sent by the network device, where the second information is used to indicate that the number of time slots of the first time domain resource offset from the second time domain resource is greater than or equal to the second threshold.

In one possible implementation manner, the sending module is further configured to: sending the type information or the capability information of the terminal equipment to the network equipment; wherein the type information or the capability information is used for informing the network device to determine the second threshold according to the type information or the capability information.

According to the communication method in the embodiment of the application, the first signal is sent to the terminal device on the first time domain resource, and because the time interval between the first time domain resource and the second time domain resource is greater than or equal to a first threshold, the terminal device can be in a power saving mode at the time interval between the first time domain resource and the second time domain resource, or at least can be in a power saving mode at the time after the first time domain resource in the time slot where the first time domain resource is located, so that the terminal device can be ensured to normally receive the downlink signal while saving power, and the terminal device can reasonably save power.

Drawings

Fig. 1 is a schematic architecture diagram of a communication system to which the communication method of the embodiment of the present application can be applied.

Fig. 2 is a schematic block diagram of a communication method according to an embodiment of the present application.

Fig. 3 is a schematic flow chart of a communication method according to an embodiment of the present application.

Fig. 4 is a schematic flow chart of a communication method according to another embodiment of the present application.

Fig. 5 is a schematic flow chart of a communication method according to another embodiment of the present application.

Fig. 6 is a schematic configuration diagram of a communication apparatus according to an embodiment of the present application.

Fig. 7 is a schematic configuration diagram of a communication apparatus according to another embodiment of the present application.

Fig. 8 is a schematic configuration diagram of a communication apparatus according to another embodiment of the present application.

Fig. 9 is a schematic configuration diagram of a communication apparatus according to another embodiment of the present application.

Fig. 10 is a schematic configuration diagram of a communication apparatus according to another embodiment of the present application.

Fig. 11 is a schematic configuration diagram of a communication apparatus according to another embodiment of the present application.

Detailed Description

The technical solution in the present application will be described below with reference to the accompanying drawings.

The technical scheme of the embodiment of the application can be applied to various communication systems, for example: a global system for mobile communications (GSM) system, a Code Division Multiple Access (CDMA) system, a Wideband Code Division Multiple Access (WCDMA) system, a General Packet Radio Service (GPRS), a long term evolution (long term evolution, LTE) system, a LTE Frequency Division Duplex (FDD) system, a LTE Time Division Duplex (TDD), a Universal Mobile Telecommunications System (UMTS), a Worldwide Interoperability for Microwave Access (WiMAX) communication system, a future fifth generation (5G) or New Radio (NR) system, and the like.

A terminal device in this embodiment may refer to a User Equipment (UE), an access terminal, a subscriber unit, a subscriber station, a mobile station, a remote terminal, a mobile device, a user terminal, a wireless communication device, a user agent, or a user equipment. The terminal device may also be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), a handheld device with wireless communication function, a computing device or other processing device connected to a wireless modem, a vehicle-mounted device, a wearable device, a terminal device in a future 5G network or a terminal device in a future evolved Public Land Mobile Network (PLMN), and the like, which is not limited in this embodiment.

The network device in this embodiment may be a device for communicating with a terminal device, where the network device may be a Base Transceiver Station (BTS) in a global system for mobile communications (GSM) system or a Code Division Multiple Access (CDMA) system, may also be a base station (NodeB) in a Wideband Code Division Multiple Access (WCDMA) system, may also be an evolved NodeB (eNB) or eNodeB) in an LTE system, may also be a wireless controller in a Cloud Radio Access Network (CRAN) scenario, or may be a relay station, an access point, a vehicle-mounted device, a wearable device, a network device in a future 5G network, or a network device in a future evolved PLMN network, and the like, and the present embodiment is not limited.

In the embodiment of the application, the terminal device or the network device includes a hardware layer, an operating system layer running on the hardware layer, and an application layer running on the operating system layer. The hardware layer includes hardware such as a Central Processing Unit (CPU), a Memory Management Unit (MMU), and a memory (also referred to as a main memory). The operating system may be any one or more computer operating systems that implement business processing through processes (processes), such as a Linux operating system, a Unix operating system, an Android operating system, an iOS operating system, or a windows operating system. The application layer comprises applications such as a browser, an address list, word processing software, instant messaging software and the like. Furthermore, the embodiment of the present application does not particularly limit the specific structure of the execution main body of the method provided by the embodiment of the present application, as long as the communication can be performed according to the method provided by the embodiment of the present application by running the program recorded with the code of the method provided by the embodiment of the present application, for example, the execution main body of the method provided by the embodiment of the present application may be a terminal device or a network device, or a functional module capable of calling the program and executing the program in the terminal device or the network device.

In addition, various aspects or features of the present application may be implemented as a method, apparatus, or article of manufacture using standard programming and/or engineering techniques. The term "article of manufacture" as used herein is intended to encompass a computer program accessible from any computer-readable device, carrier, or media. For example, computer-readable media can include but are not limited to magnetic storage devices (e.g., hard disk, floppy disk, magnetic strips, etc.), optical disks (e.g., Compact Disk (CD), Digital Versatile Disk (DVD), etc.), smart cards, and flash memory devices (e.g., erasable programmable read-only memory (EPROM), card, stick, or key drive, etc.). In addition, various storage media described herein can represent one or more devices and/or other machine-readable media for storing information. The term "machine-readable medium" can include, without being limited to, wireless channels and various other media capable of storing, containing, and/or carrying instruction(s) and/or data.

Fig. 1 is an exemplary architecture diagram of a communication system 100 of one embodiment of the present application. The method in the embodiment of the present application may be applied to the communication system 100 shown in fig. 1. It should be understood that more or fewer network devices or terminal devices may be included in the communication system 100 to which the methods of the embodiments of the present application may be applied.

The network device or the terminal device in fig. 1 may be hardware, or may be functionally divided software, or a combination of the two. The network devices or terminal devices in fig. 1 may communicate with each other through other devices or network elements.

In the communication system 100 shown in fig. 1, a network device 110 and terminal devices 101 to 106 constitute one communication system 100. In the communication system 100, the network device 110 may transmit downlink data to the terminal devices 101 to 106, and of course, the terminal devices 101 to 106 may transmit uplink data to the network device 110. It should be understood that terminal devices 101-106 may be, for example, cellular phones, smart phones, laptops, handheld communication devices, handheld computing devices, satellite radios, global positioning systems, PDAs, and/or any other suitable device for communicating over wireless communication system 100.

The communication system 100 may be a PLMN network, a Device-to-Device (D2D) network, a Machine-to-Machine (M2M) network, an internet of things (IoT) network, or other networks.

The terminal devices 104 to 106 may form a communication system. In the communication system, the terminal device 105 may transmit downlink data to the terminal device 104 or the terminal device 106.

In a wireless communication system, data or information may be carried over time-frequency resources, which may include resources in the time domain and resources in the frequency domain. The resource in the time domain may include one or more time domain units.

One time domain unit may be one symbol, or one mini-slot (slot), or one subframe (subframe), where the duration of one subframe in the time domain may be 1 millisecond (ms), one slot may be composed of 7 or 14 symbols, and one mini-slot may include at least one symbol (e.g., 2 symbols or 7 symbols or 14 symbols, or any number of symbols less than or equal to 14 symbols).

In the embodiments of the present application, "data" or "information" may be understood as bits generated after an information block is coded, or "data" or "information" may be understood as modulation symbols generated after the information block is coded and modulated.

The communication method of the present application may be used for the transmission of various types of services, which may include, for example, but are not limited to: a. ultra reliable and ultra low latency (URLLC) traffic; b. enhanced mobile internet service (eMBB) service. Specifically, the international telecommunications union-radio communications commission (ITU-R) defines a future 5G application scenario, which may include eMBB and URLLC, and defines the capability requirements for a 5G network from 8 dimensions, such as throughput, latency, connection density, and spectral efficiency increase. The eMBB service mainly requires a high rate, a wide coverage, a transmission delay, and mobility. The main requirements of URLLC service are very high reliability, very low mobility and transmission delay, which generally requires that the wireless air interface reaches 99.999% of transmission reliability within 1 millisecond (ms).

In a wireless communication system, the scheduling scheme of the PDSCH is dynamically indicated by Downlink Control Information (DCI). For example, a 4-bit (bit) time domain resource allocation (time resource allocation) field may be included in the DCI, which may dynamically indicate one of 16 PDSCH time domain resources. Optionally, the 16 PDSCH time domain resources may be configured semi-statically by the network device, or preset or specified in a protocol.

The existing wireless communication system can support two scheduling modes, namely, a simultaneous slot scheduling mode and a cross-slot scheduling mode.

The simultaneous slot scheduling refers to that a Physical Downlink Control Channel (PDCCH) and a Physical Downlink Shared Channel (PDSCH) scheduled by the PDCCH or other downlink signals are located in the same time slot. As shown in fig. 2, in the case of no data scheduling, for the same-slot scheduling, the terminal device cannot know whether the data in the period of time is scheduled during PDCCH decoding (i.e. before decoding to obtain DCI), so that it is necessary to buffer the downlink data receiving buffer in the period of time and keep the front-end modules such as the radio frequency modules open, and accordingly, the terminal device consumes more energy.

The cross-slot scheduling refers to that the PDCCH and the PDSCH or other downlink signals scheduled by the PDCCH are positioned in different time slots. As shown in fig. 2, under the condition of no data scheduling, for the cross-timeslot scheduling, the terminal device may know that the timeslot is not scheduled at least one timeslot in advance, and at this time, the terminal device may close the front-end modules such as the downlink data radio frequency and the downlink data receiving buffer to save power.

The PDSCH time domain resource may include a K0 parameter, where the K0 parameter may indicate the number of time slots between the PDCCH resource and the PDSCH resource scheduled by the PDCCH, or the number of time slots between the PDSCH resource scheduled by the PDCCH resource and offset from the PDCCH. Here, if the PDCCH resource or the PDSCH resource occupies more than one slot, the number of slots apart/offset is calculated according to the first slot therein. For example, if a PDCCH resource occupies a time slot n and a PDSCH resource scheduled by the PDCCH resource occupies a time slot n +3, the number of time slots between the PDCCH resource and the PDSCH resource is 3, and K0 is 3. For another example, if a PDCCH resource occupies a time slot n and a PDSCH resource scheduled by the PDCCH resource occupies a time slot n +2 and a time slot n +3, the number of time slots between the PDCCH resource and the PDSCH resource is 2, and K0 is 2.

For example, K0 ═ 0 may indicate that the PDCCH resources are in the same time slot as the PDSCH resources scheduled by the PDCCH, such as the simultaneous slot scheduling in fig. 2. K0>0 may represent cross-slot scheduling, e.g., K0 ═ 1 may represent that PDCCH resources are one slot away from PDSCH resources scheduled by the PDCCH, as in cross-slot scheduling in fig. 2; accordingly, K0-2 may indicate that a PDCCH resource is two slots away from a PDSCH resource scheduled by the PDCCH.

In this application, the network device may configure the K0 parameter in the PDSCH time domain resource to satisfy: k0> 0. At this time, the terminal device may know in advance that the scheduling is the cross-slot scheduling before decoding the DCI, so that the front-end module such as the downlink data radio frequency and the downlink data receiving buffer may be closed to save power.

However, during the communication process, there may be some special cases, for example, the PDCCH may trigger an aperiodic channel state information reference signal (a-CSI-RS), and accordingly, the terminal device needs to receive the a-CSI-RS; alternatively, at some PDCCH detection occasions (monitongcasing), the terminal device needs to detect the first system message block (SIB 1), the random access response, or the terminal device collision resolution identity. In these cases, the terminal device needs to receive downlink data in the time slot, which is not favorable for saving power of the terminal device.

Therefore, the embodiment of the present application provides a communication method, which can ensure that a terminal device normally receives downlink signals while saving power, so that the terminal device reasonably saves power.

Fig. 3 is a schematic flow chart of a communication method according to an embodiment of the present application. It should be understood that fig. 3 shows steps or operations of a communication method, but these steps or operations are only examples, and other operations or variations of the operations in fig. 3 may be performed by the embodiments of the present application, or not all the steps need to be performed, or the steps may be performed in other orders.

S310, the network device determines a first time domain resource, and the time interval between the first time domain resource and a second time domain resource is greater than or equal to a first threshold.

As an example, the first threshold may be a time duration for the terminal device to decode the PDCCH. Alternatively, the first threshold may be greater than a time duration for decoding the PDCCH by the terminal device. Optionally, the first threshold may be predefined, for example, the first threshold may be protocol-specified.

Optionally, the network device may determine the time domain resource according to the second time domain resource; when the time interval between the time domain resource and the second time domain resource is smaller than the first threshold, the network device uses the first threshold as the time interval between the first time domain resource and the second time domain resource, and determines the first time domain resource according to the second time domain resource.

Alternatively, the network device may determine the time domain resource according to the second time domain resource; and when the time interval between the time domain resource and the second time domain resource is greater than or equal to the first threshold, the network equipment takes the determined time domain resource as the first time domain resource.

In an embodiment of the present application, the network device may determine a plurality of candidate first time domain resources.

Wherein a time interval between at least a portion of the candidate first time domain resources of the plurality of candidate first time domain resources and the second time domain resource may be less than the first threshold. Here, the time interval refers to a time interval between an end symbol of the second time domain resource and a start symbol of the first time domain resource, i.e., a time from after the end symbol of the second time domain resource to before the start symbol of the first time domain resource. The first threshold may be the number of slots or the number of Orthogonal Frequency Division Multiplexing (OFDM) symbols, or a combination of the two (for example, the first threshold may be a certain number of slots and a certain number of symbols), or may be an absolute time.

It should be appreciated that, as an example, the network device may determine the plurality of candidate first time domain resources based on the first configuration information. The first configuration information may be predefined, for example, the first configuration information may be protocol-specified.

As another example, after determining the plurality of candidate first time domain resources, the network device may also send first configuration information to the terminal device.

Here, the first configuration information is used to indicate the plurality of candidate first time domain resources. Optionally, the first configuration information may include a slot offset of each candidate first time domain resource, or include indication information of a slot offset of each candidate first time domain resource. The slot offset is the number of slots in which the candidate first time domain resource is offset relative to the second time domain resource. Here, the slot offset has a similar meaning to the aforementioned K0.

Accordingly, the terminal device may receive the first configuration information.

In this embodiment, the terminal device may send type (category) information or capability (capability) information of the terminal device.

Accordingly, the network device may receive type information or capability information of the terminal device.

In this embodiment, the network device may determine the first threshold according to the type information or the capability information.

Optionally, the type information of the terminal device may be associated with a first threshold. For example, different types of terminal devices may correspond to different first thresholds, and after receiving the type information of the terminal device, the network device may determine the first threshold according to the type information.

Alternatively, the capability information of the terminal device may be associated with a first threshold. For example, different capability levels of the terminal device may correspond to different first thresholds, and after receiving the capability information of the terminal device, the network device may determine the first thresholds according to the capability information.

In this embodiment, the terminal device may send a time duration for decoding the PDCCH by the terminal device.

Optionally, the terminal device may report, by using a capability, a time duration for the terminal device to decode the PDCCH. That is, the terminal device may send a time duration for decoding the PDCCH by the terminal device when sending the capability information of the terminal device.

Or, the terminal device may send a duration range of the decoded PDCCH supported by the terminal device.

Accordingly, the network device may receive a length of time for decoding the PDCCH by the terminal device or a length range of the decoded PDCCH supported by the terminal device.

In this embodiment, the first signal may be an aperiodic channel state information reference signal a-CSI-RS, a first system information block SIB1, a random access response, or a terminal equipment collision resolution identity.

Optionally, if the first signal is an a-CSI-RS, the timeslot offset of the candidate first time domain resources configured by the network device for the terminal device may be one or more of 0, 1, 2, 3, and 4.

In this embodiment of the present application, if the first signal is a first system information block SIB1, a random access response, or a terminal equipment collision resolution identifier, the first signal may be carried in a physical downlink shared channel PDSCH.

Optionally, if the first signal is SIB1, a random access response, or a terminal device collision resolution identity, the candidate first time domain resources may be as shown in table 1, table 2, or table 3 below. It should be understood that the plurality of candidate first time domain resources may be all time domain resources in table 1, table 2, or table 3 below. Alternatively, the candidate first time domain resources configured by the network device for the terminal device may be partial time domain resources in table 1, table 2, or table 3 below.

Table 1 default PDSCH time domain resource allocation pattern a

Table 2 default PDSCH time domain resource allocation pattern B

Table 3 default PDSCH time domain resource allocation method C

S320, the network device sends a first PDCCH on the second time domain resource, where the first PDCCH is used to instruct to send the first signal on the first time domain resource. Accordingly, the terminal device receives the first PDCCH on the second time domain resource.

Here, the first PDCCH may be used to schedule or trigger the first signal. If the first signal is an a-CSI-RS, the first PDCCH may trigger the a-CSI-RS. If the first signal is a first system information block SIB1, a random access response, or a terminal equipment collision resolution identity, which is carried in a PDSCH, the first PDCCH is used to schedule the PDSCH.

S330, the terminal equipment determines a first time domain resource according to the first PDCCH.

Optionally, the terminal device may determine the first time domain resource according to the first PDCCH and the first configuration information. As previously mentioned, the first configuration information may be predefined or may be received from the network device.

Optionally, when the slot offset between the first time domain resource and the second time domain resource indicated by the first PDCCH is smaller than the first threshold, the network device may use the first threshold as the slot offset between the first time domain resource and the second time domain resource, and determine the first time domain resource according to the second time domain resource and the first threshold.

Or, when the slot offset between the first time domain resource indicated by the first PDCCH and the second time domain resource is greater than or equal to the first threshold, the network device may determine the first time domain resource according to the second time domain resource.

S340, the network device transmits the first signal on the first time domain resource. Accordingly, the terminal device receives the first signal on the first time domain resource.

In this embodiment, the number of time slots in which the first time domain resource is offset with respect to the second time domain resource is greater than or equal to a first threshold, and therefore, the terminal device may be in a power saving mode before receiving the first signal.

Optionally, that the terminal device is in the power saving mode may mean that the terminal device is in a sleep mode. Or, the terminal device being in the power saving mode may refer to the terminal device being in a micro sleep mode or a light sleep mode. For example, in the sleep or light sleep mode, the terminal device may turn off the downlink receiving related module, such as a front end receiving module such as a radio frequency module, a downlink data buffering module, and the like, so as to achieve the purpose of saving power.

As an example, the number of time slots of the first time domain resource offset relative to the second time domain resource may be greater than or equal to a first threshold by:

the first method is as follows:

first, it needs to be ensured that the number of time slots of at least one candidate first time domain resource in the plurality of candidate first time domain resources, which is offset with respect to the second time domain resource, is greater than or equal to the first threshold, and the number of time slots of the remaining candidate first time domain resources, which is offset with respect to the second time domain resource, may be less than the first threshold.

In this case, the network device may directly determine, as the first time domain resource, a candidate first time domain resource, among the plurality of candidate first time domain resources, for which the number of time slots shifted with respect to the second time domain resource is greater than or equal to the first threshold.

For example, when the timeslot offsets of the candidate first time domain resources configured for the terminal device by the network device are 0, 1, 2, 3, 4, the network device may configure an RRC parameter CSI-AperiodicTriggerStateList for the terminal device such that the number of timeslots of an earliest a-CSI-RS among one or more a-CSI-RSs corresponding to at least one parameter CSI-AperiodicTriggerStateList from a PDCCH triggering the one or more a-CSI-RSs is 1, 2, 3, 4, so that the number of timeslots of the first time domain resource offset from the second time domain resource is greater than or equal to the first threshold. Wherein the one or more A-CSI-RSs may include CSI-RSs for interference measurement.

The second method comprises the following steps:

the network device may send first information for updating a first parameter of a plurality of candidate first time domain resources of the first time domain resources. Here, among the plurality of candidate first time domain resources, the first parameters of all candidate first time domain resources may be updated, or only the first parameters of the updated part of candidate first time domain resources may be updated.

Accordingly, the terminal device may receive the first information, and determine a first time domain resource according to the first configuration information, the first information, and the first PDCCH.

In a possible implementation manner, the network device may update a candidate first time domain resource first parameter, of the plurality of candidate first time domain resources, whose time interval with the second time domain resource (i.e., the time domain resource occupied by the PDCCH scheduling these time domain resources) is smaller than the first threshold, so that the time interval between the updated candidate first time domain resource and the second time domain resource is greater than or equal to the first threshold.

Accordingly, the network device may determine the first time domain resource for transmitting the first signal among the updated plurality of candidate first time domain resources. It should be understood that here, "updating" is considered to describe the entirety of the plurality of candidate first time domain resources, i.e. the network device determines that the alternative of the first time domain resource is not limited to the candidate first time domain resource that is actually updated, but includes the first time domain resource that is actually updated and the first time domain resource that does not need to be updated.

It should be understood that although described using "update," the terminal device and the network device may not actually update the first configuration information. For example, after determining which candidate first time domain resource is indicated by the first PDCCH, the terminal device may determine the first time domain resource according to the first information and other information of the candidate first time domain resource except for the slot offset; the network device may take into account the previously transmitted first information when determining which candidate first time domain resource the first PDCCH indicates. Of course, the terminal device and the network device may also actually update the first configuration information, for example, update table 1, table 2, and table 3.

Optionally, the first parameter is a slot offset, and the slot offset is the number of slots in which the candidate first time domain resource is offset with respect to the second time domain resource.

For example, when the first signal is SIB1, the candidate first time domain resources may be table 1, table 2, or table 3, where for example, the network device may update the time domain resource marked with "1" in table 1, and make K0 greater than or equal to 1, so that the time interval between the time domain resource and the second time domain resource is greater than or equal to the first threshold.

Optionally, the first information may be an updated slot offset. Here, the first information may be only the updated slot offset of the candidate first time domain resource that needs to be updated, or may be the slot offset of all candidate first time domain resources, and in this case, the first information includes the updated slot offset of the candidate first time domain resource that needs to be updated and the slot offset of the candidate first time domain resource that does not need to be updated.

Alternatively, the first information may be a difference between the updated slot offset and the original slot offset. Here, the first information may be only a difference between the updated slot offset of the candidate first time domain resource to be updated and the original slot offset, or may be a difference between the slot offsets of all the candidate first time domain resources and the original slot offset, and in this case, in the first information, other positions are filled with 0 in addition to the difference between the updated slot offset of the candidate first time domain resource to be updated and the original slot offset.

Alternatively, the first information may be the first threshold. As an example, the terminal device may determine, after determining which candidate first time domain resource is indicated by the first PDCCH, whether a time interval between the indicated candidate first time domain resource and the second PDCCH is greater than or equal to the first threshold, determine, if the time interval is greater than the first threshold, the indicated candidate first time domain resource as the first time domain resource, and if the time interval is less than the first threshold, determine the first time domain resource as a time domain resource whose other parameter is the same as the indicated candidate first time domain resource but whose time interval is equal to the second time domain resource. Or, after determining which candidate first time domain resource is indicated by the first PDCCH, the terminal device may directly determine the first time domain resource as a time domain resource whose other parameter is the same as the indicated candidate first time domain resource but whose time interval with the second time domain resource is the first threshold.

The third method comprises the following steps:

the network device may send second information, where the second information is used to indicate that the number of time slots of the first time domain resource offset with respect to the second time domain resource is greater than or equal to the first threshold, or to indicate that the terminal device is in a power saving mode in a time slot between the first time domain resource and the second time domain resource, or to indicate that the terminal device is in a power saving mode at least in a time after the first time domain resource in the time slot in which the first time domain resource is located.

Accordingly, the terminal device may receive the second information.

That is, if the terminal device receives the second information, the terminal device may determine that the number of time slots of the first time domain resource offset from the second time domain resource is greater than or equal to the first threshold.

In the embodiment of the present application, the network device may configure a wake-up signal or configure a sleep-entering signal. Optionally, the first information may be a message configuring the wake-up signal or a message configuring the sleep entry signal. That is, if the terminal device receives the message configuring the wake-up signal or the message configuring the sleep entry signal, the terminal device may determine that the number of slots of the first time domain resource that are offset from the second time domain resource is greater than or equal to the first threshold.

For example, if the RRC parameter pdsch-ConfigCommon configured by the network device for the terminal device includes a pdsch-timedomainallclositionslist parameter, the network device may send the second information. Accordingly, the terminal device may receive the second information. If the terminal device receives the second information, the terminal device may consider that, when the first signal is a random access response or a terminal device collision resolution flag, the number of time slots of the first time domain resource that are offset with respect to the second time domain resource is greater than or equal to the first threshold.

Or, if the RRC parameter pdsch-ConfigCommon configured by the network device for the terminal device does not include the pdsch-timedomainallclositionslist parameter, the network device may send the second information. Accordingly, the terminal device may receive the second information. If the terminal device receives the second information, the terminal device may consider that, when the first signal is a random access response or a terminal device collision resolution flag, the number of time slots of the first time domain resource that are offset with respect to the second time domain resource is greater than or equal to the first threshold.

It is to be understood that the above means may be combined with each other arbitrarily. For example, after receiving the second information, the terminal device may determine the first time domain resource according to the first threshold value as described in manner two.

In addition, the terminal may determine the timeslot offset of the first time domain resource according to a predefined rule after receiving the second message. For example, the terminal device may update the time domain offset K0 of each candidate first time domain resource to K0+1, or update the time domain offset K0 of the candidate first time domain resource with the time domain offset of 0 to K0+ 1.

In this embodiment, the terminal device may send a power saving request signaling. Alternatively, the terminal device may transmit the power saving request signaling through Radio Resource Control (RRC) signaling. For example, the terminal device may send the power saving request signaling through a UEAssistanceInformation message in RRC signaling.

Accordingly, the network device may receive the power save request signaling.

The receiving of the power saving request signalling may occur before the network device determines the first time domain resource, but this does not mean that the network device needs to wait for the power saving request signalling to determine the resource to send the signal to the terminal device.

In this embodiment, the network device may send the first information and/or the second information in response to the power saving request signaling. That is, the network device may send the first information and/or the second information after receiving the power saving request signaling.

Accordingly, the terminal device may receive the first information and/or the second information.

Fig. 4 is a schematic flow chart of a communication method according to an embodiment of the present application. It should be understood that fig. 4 shows steps or operations of a communication method, but these steps or operations are only examples, and other operations or variations of the operations in fig. 4 may also be performed by the embodiments of the present application, or not all the steps need to be performed, or the steps may be performed in other orders.

S410, the network device determines a plurality of candidate first time domain resources.

Wherein a number of time slots of all candidate first time domain resources of the plurality of candidate first time domain resources that are offset relative to the second time domain resource is greater than or equal to the first threshold.

It is to be understood that the plurality of candidate first time domain resources may be predefined, e.g. the plurality of candidate first time domain resources may be protocol specified.

In this embodiment, the network device may further send first configuration information, where the first configuration information is used to indicate the candidate first time domain resources, and the first configuration information may include a slot offset of each candidate first time domain resource, where the slot offset is a number of slots of the candidate first time domain resource that are offset with respect to the second time domain resource.

Optionally, the first configuration information may be used to indicate a slot offset of the candidate first time domain resource.

S420, the network device determines a first time domain resource, where the first time domain resource is one of the candidate first time domain resources, and the number of time slots of each candidate first time domain resource shifted from the second time domain resource is greater than or equal to a first threshold.

The first threshold may be a time duration for the terminal device to decode the PDCCH. Alternatively, the first threshold may be greater than a time duration for decoding the PDCCH by the terminal device. Optionally, the first threshold may be predefined, for example, the first threshold may be protocol-specified.

In this embodiment, the terminal device may send type information or capability information of the terminal device.

Optionally, if the first signal is an a-CSI-RS, the timeslot offset of the candidate first time domain resources configured by the network device for the terminal device may be one or more of 1, 2, 3, and 4. The time slot offset may represent the number of time slots between the a-CSI-RS scheduled by the network device and the PDCCH triggering the a-CSI-RS, and the time slot offset may be represented by K0.

For example, the network device may configure an RRC parameter CSI-AperiodicTriggerStateList for the terminal device, such that the number of slots of an earliest a-CSI-RS among one or more a-CSI-RSs corresponding to at least one parameter CSI-AperiodicTriggerStateList from a PDCCH triggering the one or more a-CSI-RSs may be one or more of 1, 2, 3, and 4, such that the number of slots of the first time domain resource offset with respect to the second time domain resource is greater than or equal to the first threshold. Wherein the one or more A-CSI-RSs may include CSI-RSs for interference measurement.

Optionally, if the first signal is SIB1, the candidate first time domain resources configured by the network device for the terminal device may be as shown in table 1, table 2, or table 3. It should be understood that the timeslot offset in each of the above tables may be the timeslot offset K0, and the candidate first time domain resources configured by the network device for the terminal device may be all the time domain resources in table 1, table 2, or table 3. Alternatively, the candidate first time domain resources configured by the network device for the terminal device may be partial time domain resources in table 1, table 2, or table 3.

Optionally, if the first signal is a random access response or a terminal device collision resolution identifier, the candidate first time domain resources configured by the network device for the terminal device may be as shown in table 1 above. It should be understood that the candidate first time domain resources configured by the network device for the terminal device may be all the time domain resources in table 1 above. Alternatively, the candidate first time domain resources configured by the network device for the terminal device may be partial time domain resources in table 1.

Optionally, if the plurality of candidate first time domain resources include time domain resources whose number of time slots shifted relative to the second time domain resource is smaller than the first threshold, a value larger than 0 may be added to the time slot shift amount K0 corresponding to each candidate first time domain resource, or 1 may be added to the time slot shift amount K0 corresponding to each candidate first time domain resource, so that the number of time slots shifted relative to the second time domain resource of all the candidate first time domain resources in the plurality of candidate first time domain resources is greater than or equal to the first threshold.

Optionally, when the first signal is a random access response or a terminal device collision resolution identifier, the candidate first time domain resources may be time domain resources configured by the network device.

Accordingly, the network device may receive the power save request signaling.

Optionally, the network device may determine, after receiving the power saving request signaling, a first time domain resource for transmitting a first signal among the candidate first time domain resources.

S430, the network device sends a first PDCCH on the second time domain resource, and the first PDCCH is used for indicating that the first signal is sent on the first time domain resource. Accordingly, the terminal device receives the first PDCCH on the second time domain resource.

In this embodiment of the present application, the network device may send third information, where the third information may be used to indicate that the terminal device is in a power saving mode in a time slot between the first time domain resource and the second time domain resource, or at least in a time after the first time domain resource in the time slot where the first time domain resource is located.

Accordingly, the terminal device may receive the third information.

In the embodiment of the present application, the network device may configure a wake-up signal or configure a sleep-entering signal. If the terminal device receives the message for configuring the wake-up signal or the message for configuring the sleep signal, the terminal device may be in a power saving mode in a time slot between the first time domain resource and the second time domain resource, or may be in the power saving mode at least in a time after the first time domain resource in the time slot in which the first time domain resource is located.

In this embodiment, if a pdsch-ConfigCommon configured by a network device for a terminal device includes a pdsch-timedomainallclositionslist parameter, the number of time slots of all candidate first time domain resources of the candidate first time domain resources configured by the network device for the terminal device, which are offset from the second time domain resource, may be greater than or equal to the first threshold. That is, at this time, the terminal device may consider that the number of slots in which the first time domain resource is offset with respect to the second time domain resource is greater than or equal to the first threshold.

Alternatively, if the RRC parameter pdsch-ConfigCommon configured by the network device for the terminal device does not include the pdsch-timedomainallclositionlist parameter, the candidate first time domain resources configured by the network device for the terminal device may be all or part of the time domain resources of the time slot offset K0 in table 1. Optionally, if the plurality of candidate first time domain resources include time domain resources whose number of time slots shifted from the second time domain resource is smaller than the first threshold, a value larger than 0 may be added to the time slot shift amount K0 corresponding to each candidate first time domain resource, or 1 may be added to the time slot shift amount K0 corresponding to each candidate first time domain resource. That is, at this time, the terminal device may consider that the number of slots in which the first time domain resource is offset with respect to the second time domain resource is greater than or equal to the first threshold.

S440, the terminal device determines a first time domain resource according to the first PDCCH.

S450, the network device transmits a first signal on the first time domain resource. Accordingly, the terminal device receives the first signal on the first time domain resource.

Optionally, that the terminal device is in the power saving mode may mean that the terminal device is in a sleep mode. Or, the terminal device being in the power saving mode may refer to the terminal device being in a micro sleep mode or a light sleep mode.

Fig. 5 is a schematic flow chart of a communication method according to an embodiment of the present application. It should be understood that fig. 5 shows steps or operations of a communication method, but these steps or operations are only examples, and other operations or variations of the operations in fig. 5 may also be performed by the embodiments of the present application, or not all the steps need to be performed, or the steps may be performed in other orders.

S510, the network device determines multiple allocation manners for transmitting time domain resources of the PDSCH.

Wherein the plurality of allocation manners may be protocol predefined. Or, the multiple allocation manners are received by the terminal device from the network device.

In this embodiment of the present application, the network device may further send the multiple allocation manners, and a timeslot offset in each of the multiple allocation manners is a timeslot offset of the time domain resource corresponding to the allocation manner with respect to the second time domain resource.

Specifically, the network device may send the multiple allocation manners to multiple terminal devices through an RRC message.

The various dispensing modes may be as shown in table 1, table 2 or table 3. It should be understood that the plurality of allocation manners may be all the time domain resources in table 1, table 2, or table 3. Or, the candidate first time domain resource patterns configured for the terminal device by the multiple allocation manners may be partial time domain resources in table 1, table 2, or table 3. Alternatively, the multiple allocation manners configured by the network device for the terminal device may also be not limited to table 1, table 2, or table 3, and may also be other predefined or configured tables for PDSCH time domain resource allocation by the network device, which is not limited in this embodiment of the present application.

S520, the network device determines a first time domain resource, the first time domain resource corresponds to a first allocation mode, the first allocation mode is one of the allocation modes, and a time slot offset between the first time domain resource and a second time domain resource is greater than or equal to a second threshold.

Alternatively, the second threshold may be an integer greater than 0. Further, the second threshold may be 1.

In this embodiment of the present application, when the timeslot offset in the first allocation manner is smaller than the second threshold, the second threshold is used as the timeslot offset between the first time domain resource and the second time domain resource, and the network device may determine the first time domain resource according to the second threshold, the second time domain resource, and other parameters except the timeslot offset in the first allocation manner.

Similarly, when the timeslot offset in the first allocation manner is greater than or equal to the second threshold, the network device may determine the first time domain resource according to the second time domain resource and the first allocation manner.

Optionally, the network device may send the second threshold to a plurality of terminal devices through a system message or an RRC message.

Optionally, the communication method may further include the network device receiving type information or capability information of the plurality of terminal devices from the plurality of terminal devices, and determining the second threshold according to the type information or the capability information.

Alternatively, the plurality of terminal devices may be located in the same cell of the network device. The same cell of the network device may refer to a cell served by the network device, or, in other words, a cell belonging to the network device.

In other words, the second threshold may be a cell-level configuration parameter, the second threshold being the same for all terminal devices in the same cell of the network device.

Optionally, the network device may further send second information to the plurality of terminal devices, where the second information is used to indicate that the number of time slots of the first time domain resource that is offset with respect to the second time domain resource is greater than or equal to the second threshold.

S530, the network device sends a first PDCCH to a plurality of terminal devices on the second time domain resource, where the first PDCCH is used to indicate the first time domain resource.

Wherein the first time domain resource indicated by the first PDCCH may be a broadcast (broadcast) type PDSCH time domain resource.

And S540, the terminal device determines a first time domain resource according to the first PDCCH and a first allocation mode, the first allocation mode is one of the allocation modes, and the time slot offset between the first time domain resource and the second time domain resource is greater than or equal to a second threshold value.

Optionally, a timeslot offset in each of the multiple allocation manners is a timeslot offset of the time domain resource corresponding to the allocation manner with respect to the second time domain resource.

Alternatively, the plurality of distribution manners may be part or all of table 1, table 2 or table 3.

Optionally, when the time slot offset between the first time domain resource and the second time domain resource indicated by the first PDCCH is smaller than the second threshold, the second threshold is used as the time slot offset between the first time domain resource and the second time domain resource, and the network device may determine the first time domain resource according to the second threshold, the second time domain resource, and other parameters except the time slot offset in the first allocation manner; or

Similarly, when the slot offset between the first time domain resource indicated by the first PDCCH and the second time domain resource is greater than or equal to the second threshold, the network device may determine the first time domain resource according to the second time domain resource and the first allocation manner.

S550, the network device sends the first PDSCH to the plurality of terminal devices on the first time domain resource.

Wherein, the message carried in the first PDSCH may be a system message or a paging message.

In the embodiment of the present application, the network device sends the first PDSCH to the multiple terminal devices in the same cell in the first time domain resource, which can avoid sending the first PDSCH to the multiple terminal devices multiple times in different time domain resource locations of the network device, thereby avoiding resource waste. Meanwhile, the time interval between the first PDSCH and the PDCCH for scheduling the first PDSCH is greater than or equal to the second threshold, so that the cross-time-slot scheduling between the network equipment and the terminal equipment can be realized, and the power consumption of the terminal equipment can be further saved.

Fig. 6 is a schematic block diagram of a communication apparatus 600 according to an embodiment of the present application. It should be understood that communication apparatus 600 is merely an example. The apparatus of the embodiments of the present application may also include other modules or units, or include modules similar in function to the respective modules in fig. 6, or not include all the modules in fig. 6.

A determining module 510, configured to determine a first time domain resource, where a time interval between the first time domain resource and a second time domain resource is greater than or equal to a first threshold;

a sending module 520, configured to send a first physical downlink control channel PDCCH to the terminal device on the second time domain resource, where the first PDCCH is used to indicate the first time domain resource;

the sending module 520 is further configured to send a first signal to the terminal device on the first time domain resource.

Optionally, the sending module 520 is further configured to send first information to the terminal device, where the first information is used to update a plurality of first parameters of the first time domain resource; wherein the first time domain resource is determined by one of the updated first parameters.

Optionally, the first parameter is a slot offset, and the slot offset is the number of slots in which the first time domain resource is offset with respect to the second time domain resource.

Optionally, the first information is one of: the updated slot offset, the difference between the updated slot offset and the original slot offset, and the first threshold.

Optionally, the sending module 520 is further configured to send, to the terminal device, second information, where the second information is used to indicate that the number of time slots in which the first time domain resource is shifted relative to the second time domain resource is greater than or equal to the first threshold, or to indicate that the terminal device is in a power saving mode in a time slot between the first time domain resource and the second time domain resource, or to indicate that the terminal device is in the power saving mode at least in a time after the first time domain resource in the time slot in which the first time domain resource is located.

Optionally, the communications apparatus 500 further includes a receiving module 530, configured to receive a power saving request signaling from the terminal device; the sending module 520 is further configured to send at least one of the first information and the second information to the terminal device in response to the power saving request signaling.

Optionally, the first signal is a first system information block SIB1, a random access response, or a terminal equipment collision resolution identity.

Optionally, the first signal is an aperiodic channel state information reference signal a-CSI-RS.

Optionally, the receiving module 530 is further configured to receive type information or capability information of the terminal device from the terminal device; the determining module 510 is further configured to determine the first threshold according to the type information or the capability information.

Fig. 7 is a schematic block diagram of a communication apparatus 600 according to an embodiment of the present application. It should be understood that communication apparatus 600 is merely an example. The apparatus of the embodiments of the present application may also include other modules or units, or include modules similar in function to the respective modules in fig. 7, or not include all the modules in fig. 7.

A receiving module 610, configured to receive a first physical downlink control channel PDCCH sent by a network device on a second time domain resource;

a determining module 620, configured to determine a first time domain resource according to the first PDCCH, where a time interval between the first time domain resource and the second time domain resource is greater than or equal to a first threshold;

a sending module 630, configured to receive, on the first time domain resource, a first signal sent by the network device.

Optionally, the receiving module 610 is further configured to receive first information sent by the network device, where the first information is used to update a plurality of first parameters of the first time domain resource; wherein the first time domain resource is determined by one of the updated first parameters.

Optionally, the receiving module 610 is further configured to receive second information sent by the network device, where the second information is used to indicate that the number of time slots of the first time domain resource offset from the second time domain resource is greater than or equal to the first threshold, or is used to indicate that the communication apparatus is in a power saving mode in a time slot between the first time domain resource and the second time domain resource, or is used to indicate that the terminal device is in a power saving mode at least in a time after the first time domain resource in the time slot in which the first time domain resource is located.

Optionally, the sending module 630 is further configured to send a power saving request signaling to the network device, where the power saving request signaling is used to trigger the network device to send at least one of the first information, the first threshold, and the second information.

Optionally, the sending module 630 is further configured to send type information or capability information of the communication apparatus to the network device; wherein the type information or the capability information is used for informing the network device to determine the first threshold according to the type information or the capability information.

Fig. 8 is a schematic block diagram of a communication apparatus 700 according to an embodiment of the present application. It should be understood that communication apparatus 700 is merely an example. The apparatus of the embodiments of the present application may also include other modules or units, or include modules having functions similar to those of the respective modules in fig. 8, or not include all the modules in fig. 8.

A determining module 710 for determining a plurality of candidate first time domain resources;

the determining module 710 is further configured to determine a first time domain resource, where the first time domain resource is one of the candidate first time domain resources, and a number of time slots of each candidate first time domain resource, which are shifted with respect to the second time domain resource, is greater than or equal to a first threshold;

a sending module 720, configured to send a first physical downlink control channel PDCCH to the terminal device on the second time domain resource, where the first PDCCH is used to indicate the first time domain resource;

the sending module 720 is further configured to send a first signal to the terminal device on the first time domain resource.

Optionally, the determining module 710 is specifically configured to determine the candidate first time domain resources according to first configuration information, where the first configuration information is predefined; or the sending module 720 is further configured to send the first configuration information to the terminal device; wherein the first configuration information is used to indicate the candidate first time domain resources, and the first configuration information includes a slot offset of each candidate first time domain resource, where the slot offset is a number of slots of the candidate first time domain resource that are offset with respect to the second time domain resource.

Optionally, the first signal is carried in a physical downlink shared channel PDSCH.

Optionally, the communication apparatus 700 further includes a receiving module 730, further configured to receive type information or capability information of the terminal device from the terminal device; the determining module 710 is further configured to determine the first threshold according to the type information or the capability information.

Optionally, the receiving module 730 is further configured to receive a power saving request signaling from the terminal device; the determining module 710 is further configured to determine a first time domain resource for transmitting a first signal among the plurality of candidate first time domain resources in response to the power saving request message.

Optionally, the sending module 720 is further configured to send first information to the terminal device, where the first information is used to indicate that the terminal device is in a power saving mode in a time slot between the first time domain resource and the second time domain resource, or at least in a time after the first time domain resource in the time slot where the first time domain resource is located.

Fig. 9 is a schematic block diagram of a communication apparatus 800 according to an embodiment of the present application. It should be understood that communication apparatus 800 is merely an example. The apparatus of the embodiments of the present application may also include other modules or units, or include modules having functions similar to those of the respective modules in fig. 9, or not include all the modules in fig. 9.

A receiving module 810, configured to receive, on a second time domain resource, a first physical downlink control channel PDCCH sent by a network device;

a determining module 820, configured to determine a first time domain resource according to the first PDCCH, where the number of time slots of the first time domain resource offset from the second time domain resource is greater than or equal to a first threshold;

a sending module 830, configured to receive a first signal sent by the network device on the first time domain resource.

Optionally, the determining module 820 is specifically configured to determine the first time domain resource according to first configuration information and the first PDCCH; wherein the first configuration information is predefined or received from the network device, the first configuration information indicating the plurality of candidate first time domain resources, the first configuration information including a slot offset for each candidate first time domain resource, the slot offset being a number of slots of the candidate first time domain resource that are offset with respect to the second time domain resource.

Optionally, the sending module 830 is further configured to send type information or capability information of the communication apparatus to the network device; wherein the type information or the capability information is used for informing the network device to determine the first threshold according to the type information or the capability information.

Optionally, the sending module 830 is further configured to send, to the network device, a power saving request signaling, where the power saving request signaling is used to trigger the network device to determine, among the candidate first time domain resources, a first time domain resource used for sending the first signal.

Optionally, the receiving module 810 is further configured to receive, from the network device, first information, where the first information is used to indicate that the communication apparatus is in a power saving mode in a time slot between the first time domain resource and the second time domain resource, or at least in a time period after the first time domain resource in the time slot in which the first time domain resource is located.

Fig. 11 is a schematic block diagram of a communication apparatus 1000 according to an embodiment of the present application. It should be understood that communication apparatus 1000 is merely an example. The apparatus of the embodiments of the present application may also include other modules or units, or include modules having functions similar to those of the respective modules in fig. 11, or not include all the modules in fig. 11.

In one possible design, the communication apparatus 1000 may correspond to the network device in fig. 5, and may be, for example, a network device or a chip configured in the network device. Communications apparatus 1000 is capable of performing the various steps performed by the network device in fig. 5.

A determining module 1010, configured to determine multiple allocation manners of time domain resources for sending a physical downlink data channel PDSCH;

the determining module 1010 is further configured to determine a first time domain resource, where the first time domain resource corresponds to a first allocation manner, the first allocation manner is one of the multiple allocation manners, a timeslot offset between the first time domain resource and a second time domain resource is greater than or equal to a second threshold, and the second threshold is an integer greater than 0;

a sending module 1020, configured to send a first physical downlink control channel PDCCH to the plurality of terminal devices on the second time domain resource, where the first PDCCH is used to indicate the first time domain resource;

the transmitting module 1020 is further configured to transmit the first PDSCH to the plurality of terminal devices on the first time domain resources.

Optionally, the plurality of allocation manners are protocol predefined; or the sending module 1020 is further configured to: sending the plurality of allocation modes to the plurality of terminal devices; and the time slot offset in each of the multiple allocation manners is the time slot offset of the time domain resource corresponding to the allocation manner relative to the second time domain resource.

Optionally, the determining module 1010 is specifically configured to: when the time slot offset in the first allocation mode is smaller than the second threshold, taking the second threshold as the time slot offset of the first time domain resource and the second time domain resource, and determining the first time domain resource according to the second threshold, the second time domain resource and other parameters except the time slot offset in the first allocation mode; and/or the determining module 1010 is specifically configured to: and when the time slot offset in the first allocation mode is greater than or equal to the second threshold, determining the first time domain resource according to the second time domain resource and the first allocation mode.

Optionally, the sending module 1020 is further configured to: and sending the second threshold value to the plurality of terminal devices through a system message.

Optionally, the sending module 1020 is further configured to: and sending second information to the plurality of terminal devices, wherein the second information is used for indicating that the number of the time slots of the first time domain resource which is offset relative to the second time domain resource is greater than or equal to the second threshold value.

Optionally, the message carried in the first PDSCH is a system message or a paging message.

Optionally, the communications apparatus 1000 further includes a receiving module 1030 configured to: receiving type information or capability information of the plurality of terminal devices from the plurality of terminal devices; the determining module 1010 is further configured to determine the second threshold according to the type information or the capability information.

In another possible design, the communication apparatus 1000 may correspond to the terminal device in fig. 5, and may be the terminal device or a chip configured in the terminal device, for example. The communication apparatus 1000 is capable of executing the respective steps performed by the terminal device in fig. 5.

A determining module 1010, configured to acquire multiple allocation manners of time domain resources for sending a physical downlink data channel PDSCH;

a sending module 1020, configured to receive, on a second time domain resource, a first physical downlink control channel PDCCH sent by a network device;

the determining module 1010 is further configured to determine a first time domain resource according to the first PDCCH and a first allocation formula, where the first allocation formula is one of the multiple allocation formulas, a time slot offset between the first time domain resource and the second time domain resource is greater than or equal to a second threshold, and the second threshold is an integer greater than 0;

the sending module 1020 is further configured to receive, on the first time domain resource, a first physical downlink data channel PDSCH sent by the network device.

Optionally, the plurality of allocation manners are protocol predefined or received from the network device; and the time slot offset in each of the multiple allocation manners is the time slot offset of the time domain resource corresponding to the allocation manner relative to the second time domain resource.

Optionally, the determining module 1010 is specifically configured to: when the time slot offset between the first time domain resource and the second time domain resource indicated by the first PDCCH is smaller than the second threshold, taking the second threshold as the time slot offset between the first time domain resource and the second time domain resource, and determining the first time domain resource according to the second threshold, the second time domain resource and other parameters except the time slot offset in the first allocation mode; and/or the determining module 1010 is specifically configured to: and when the time slot offset between the first time domain resource indicated by the first PDCCH and the second time domain resource is greater than or equal to the second threshold, determining the first time domain resource according to the second time domain resource and the first allocation mode.

Optionally, the communications apparatus further includes a receiving module 1030 configured to: and receiving the second threshold value sent by the network equipment through a system message.

Optionally, the receiving module 1030 is further configured to: receiving second information sent by the network device, where the second information is used to indicate that the number of time slots of the first time domain resource offset from the second time domain resource is greater than or equal to the second threshold.

Optionally, the sending module 1020 is further configured to: sending the type information or the capability information of the terminal equipment to the network equipment; wherein the type information or the capability information is used for informing the network device to determine the second threshold according to the type information or the capability information.

Fig. 10 is a schematic structural diagram of a communication apparatus 900 according to an embodiment of the present application. It should be understood that the communication apparatus 900 shown in fig. 10 is only an example, and the communication apparatus 900 of the embodiment of the present application may further include other modules or units, or include modules having functions similar to those of the respective modules in fig. 10.

The communication device 900 may include one or more processors 910, one or more memories 920, a receiver 930, and a transmitter 940. The receiver 930 and the transmitter 940 may be integrated together, referred to as a transceiver. The memory 920 is used for storing program codes executed by the processor 910. The memory 920 may be integrated into the processor 910, or the processor 910 may be coupled to one or more memories 920 for fetching instructions from the memories 920.

In one embodiment, the processor 910 may be configured to implement the operations or steps that the determining module 510 in fig. 6 can implement, the receiver 930 may be configured to implement the operations or steps that the receiving module 530 in fig. 6 can implement, and the transmitter 940 may be configured to implement the operations or steps that the transmitting module 520 in fig. 6 can implement.

In another embodiment, the processor 910 may be configured to implement the operations or steps that can be implemented by the determining module 620 in fig. 7, the receiver 930 may be configured to implement the operations or steps that can be implemented by the receiving module 610 in fig. 7, and the transmitter 940 may be configured to implement the operations or steps that can be implemented by the transmitting module 630 in fig. 7.

In another embodiment, the processor 910 may be configured to implement the operations or steps that the determining module 710 in fig. 8 can implement, the receiver 930 may be configured to implement the operations or steps that the receiving module 730 in fig. 8 can implement, and the transmitter 940 may be configured to implement the operations or steps that the transmitting module 720 in fig. 8 can implement.

In another embodiment, the processor 910 may be configured to implement the operations or steps that the determining module 820 in fig. 9 can implement, the receiver 930 may be configured to implement the operations or steps that the receiving module 810 in fig. 9 can implement, and the transmitter 940 may be configured to implement the operations or steps that the transmitting module 830 in fig. 9 can implement.

In another embodiment, the processor 910 may be configured to implement the operations or steps that the determining module 1010 in fig. 11 can implement, the receiver 930 may be configured to implement the operations or steps that the receiving module 1030 in fig. 11 can implement, and the transmitter 940 may be configured to implement the operations or steps that the transmitting module 1020 in fig. 11 can implement.

It should be understood that the processor in the embodiments of the present application may be a Central Processing Unit (CPU), and the processor may also be other general-purpose processors, Digital Signal Processors (DSPs), Application Specific Integrated Circuits (ASICs), Field Programmable Gate Arrays (FPGAs) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, and the like. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.

It will also be appreciated that the memory in the embodiments of the subject application can be either volatile memory or nonvolatile memory, or can include both volatile and nonvolatile memory. The non-volatile memory may be a read-only memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an electrically Erasable EPROM (EEPROM), or a flash memory. Volatile memory can be Random Access Memory (RAM), which acts as external cache memory. By way of example, but not limitation, many forms of Random Access Memory (RAM) are available, such as Static RAM (SRAM), Dynamic RAM (DRAM), Synchronous DRAM (SDRAM), double data rate SDRAM (DDR SDRAM), Enhanced SDRAM (ESDRAM), synchronous DRAM (SLDRAM), and direct bus RAM (DR RAM).

The above embodiments may be implemented in whole or in part by software, hardware, firmware, or any combination thereof. When implemented in software, the above-described embodiments may be implemented in whole or in part in the form of a computer program product. The computer program product comprises one or more computer instructions or computer programs. The procedures or functions according to the embodiments of the present application are wholly or partially generated when the computer instructions or the computer program are loaded or executed on a computer. The computer may be a general purpose computer, a special purpose computer, a network of computers, or other programmable device. The computer instructions may be stored on a computer readable storage medium or transmitted from one computer readable storage medium to another computer readable storage medium, for example, the computer instructions may be transmitted from one website, computer, server, or data center to another website, computer, server, or data center by wire (e.g., infrared, wireless, microwave, etc.). The computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device such as a server, data center, etc. that contains one or more collections of available media. The usable medium may be a magnetic medium (e.g., floppy disk, hard disk, magnetic tape), an optical medium (e.g., DVD), or a semiconductor medium. The semiconductor medium may be a solid state disk.

It should be understood that the term "and/or" herein is merely one type of association relationship that describes an associated object, meaning that three relationships may exist, e.g., a and/or B may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.

It should be understood that, in the various embodiments of the present application, the sequence numbers of the above-mentioned processes do not mean the execution sequence, and the execution sequence of each process should be determined by its function and inherent logic, and should not constitute any limitation to the implementation process of the embodiments of the present application.

Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.

It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.

In the several embodiments provided in the present application, it should be understood that the disclosed system, apparatus and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.

The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.

In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit.

The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present application or portions thereof that substantially contribute to the prior art may be embodied in the form of a software product stored in a storage medium and including instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: various media capable of storing program codes, such as a usb disk, a removable hard disk, a read-only memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.

The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A method of communication, comprising:

determining a first time domain resource, wherein the time interval between the first time domain resource and a second time domain resource is greater than or equal to a first threshold value;

sending a first Physical Downlink Control Channel (PDCCH) to the terminal equipment on the second time domain resource, wherein the first PDCCH is used for indicating the first time domain resource;

and transmitting a first signal to the terminal equipment on the first time domain resource.

2. The communication method according to claim 1, wherein prior to said determining the first time domain resource, the communication method further comprises:

sending first information to the terminal device, wherein the first information is used for updating a plurality of first parameters of the first time domain resources;

wherein the first time domain resource is determined by one of the updated first parameters.

3. The communication method of claim 2, wherein the first parameter is a slot offset, and wherein the slot offset is a number of slots of the first time domain resource offset relative to the second time domain resource.

4. The communication method according to claim 2, wherein the first information is one of: the updated slot offset, the difference between the updated slot offset and the original slot offset, and the first threshold.

5. The communication method according to any of claims 1 to 4, wherein the determining the first time domain resource comprises:

determining time domain resources according to the second time domain resources;

when the time interval between the time domain resource and the second time domain resource is smaller than the first threshold, determining the first time domain resource by taking the first threshold as the time interval between the first time domain resource and the second time domain resource; or

And when the time interval between the time domain resource and the second time domain resource is greater than or equal to the first threshold value, taking the time domain resource as the first time domain resource.

6. The communication method according to any one of claims 1 to 5, characterized in that the communication method further comprises:

and sending second information to the terminal device, where the second information is used to indicate that the number of time slots in which the first time domain resource is shifted relative to the second time domain resource is greater than or equal to the first threshold, or to indicate that the terminal device is in a power saving mode in a time slot between the first time domain resource and the second time domain resource, or to indicate that the terminal device is in a power saving mode at least in a time after the first time domain resource in the time slot in which the first time domain resource is located.

7. The communication method according to any one of claims 2 to 6, characterized in that the communication method further comprises:

receiving power saving request signaling from the terminal device;

transmitting at least one of the first information and the second information to the terminal device in response to the power saving request signaling.

8. The communication method according to any of claims 1 to 7, wherein the first signal is a first system information block, SIB1, a random access response or a terminal equipment collision resolution identity.

9. The communication method according to any of claims 1 to 7, wherein the first signal is an aperiodic channel state information reference signal, A-CSI-RS.

10. The communication method according to any one of claims 1 to 9, characterized in that the communication method further comprises:

receiving type information or capability information of the terminal equipment from the terminal equipment;

and determining the first threshold value according to the type information or the capability information.

11. A method of communication, comprising:

receiving a first Physical Downlink Control Channel (PDCCH) sent by network equipment on a second time domain resource;

determining a first time domain resource according to the first PDCCH, wherein the time interval between the first time domain resource and the second time domain resource is greater than or equal to a first threshold value;

and receiving a first signal transmitted by the network equipment on the first time domain resource.

12. The communication method according to claim 11, wherein before the receiving the first physical downlink control channel PDCCH sent by the network device on the second time domain resource, the communication method further comprises:

receiving first information sent by the network device, wherein the first information is used for updating a plurality of first parameters of the first time domain resources;

13. The communications method of claim 12, wherein the first parameter is a slot offset, and wherein the slot offset is a number of slots of the first time domain resource that are offset relative to the second time domain resource.

14. The communication method according to claim 12, wherein the first information is one of: the updated slot offset, the difference between the updated slot offset and the original slot offset, and the first threshold.

15. The communication method according to claim 11 or 14, wherein the determining the first time domain resource according to the first PDCCH comprises:

when the time interval between the first time domain resource and the second time domain resource indicated by the first PDCCH is smaller than the first threshold, taking the first threshold as the time interval between the first time domain resource and the second time domain resource, and determining the first time domain resource according to the second time domain resource; or

When the time interval between the first time domain resource indicated by the first PDCCH and the second time domain resource is larger than or equal to the first threshold value, determining the first time domain resource according to the second time domain resource.

16. The communication method according to any one of claims 11 to 15, characterized in that the communication method further comprises:

receiving second information sent by the network device, where the second information is used to indicate that the number of time slots in which the first time domain resource is shifted relative to the second time domain resource is greater than or equal to the first threshold, or is used to indicate that the terminal device is in a power saving mode in a time slot between the first time domain resource and the second time domain resource, or is used to indicate that the terminal device is in a power saving mode at least in a time after the first time domain resource in the time slot in which the first time domain resource is located.

17. The communication method according to any one of claims 12 to 16, characterized in that the communication method further comprises:

sending a power saving request signaling to the network device, where the power saving request signaling is used to trigger the network device to send at least one of the first information, the first threshold, and the second information.

18. Communication method according to any of the claims 11 to 17, wherein said first signal is a first system information block, SIB1, a random access response or a terminal equipment collision resolution identity.

19. The communication method according to any of claims 11 to 17, wherein the first signal is an aperiodic channel state information reference signal, a-CSI-RS.

20. The communication method according to any one of claims 11 to 19, characterized in that the communication method further comprises:

sending the type information or the capability information of the terminal equipment to the network equipment;

wherein the type information or the capability information is used for informing the network device to determine the first threshold according to the type information or the capability information.

21. A communications apparatus, comprising:

a determining module, configured to determine a first time domain resource, where a time interval between the first time domain resource and a second time domain resource is greater than or equal to a first threshold;

a sending module, configured to send a first physical downlink control channel PDCCH to the terminal device on the second time domain resource, where the first PDCCH is used to indicate the first time domain resource;

the sending module is further configured to send a first signal to the terminal device on the first time domain resource.

22. The communications apparatus of claim 21, wherein the sending module is further configured to send first information to the terminal device, the first information being used to update a plurality of first parameters of the first time domain resources; wherein the first time domain resource is determined by one of the updated first parameters.

23. The communications apparatus of claim 22, wherein the first parameter is a slot offset, and wherein the slot offset is a number of slots of the first time domain resource that are offset relative to the second time domain resource.

24. The communications apparatus as claimed in claim 22, wherein the first information is one of: the updated slot offset, the difference between the updated slot offset and the original slot offset, and the first threshold.

25. The communications apparatus according to any of claims 21 to 24, wherein the determining module is specifically configured to determine a time domain resource from the second time domain resource; when the time interval between the time domain resource and the second time domain resource is smaller than the first threshold, the time interval determining module is configured to determine the first time domain resource by using the first threshold as the time interval between the first time domain resource and the second time domain resource; or

And when the time interval between the time domain resource and the second time domain resource is greater than or equal to the first threshold, the time domain resource is used as the first time domain resource.

26. The apparatus of any one of claims 21 to 25, wherein the sending module is further configured to send second information to the terminal device, where the second information is used to indicate that the number of time slots of the first time domain resource that is offset from the second time domain resource is greater than or equal to the first threshold, or is used to indicate that a time slot of the terminal device between the first time domain resource and the second time domain resource is in a power saving mode, or is used to indicate that the terminal device is in the power saving mode at least in a time after the first time domain resource in the time slot of the first time domain resource.

27. The apparatus according to claims 22 to 26, wherein the apparatus further comprises a receiving module configured to receive a power saving request signaling from the terminal device; the sending module is further configured to send at least one of the first information and the second information to the terminal device in response to the power saving request signaling.

28. A communication apparatus according to any of claims 21 to 27, wherein the first signal is a first system information block, SIB1, a random access response or a terminal device collision resolution identity.

29. The communications apparatus of any of claims 21-27, wherein the first signal is an aperiodic channel state information reference signal, a-CSI-RS.

30. The apparatus according to any of claims 21 to 29, wherein the receiving module is further configured to receive type information or capability information of the terminal device from the terminal device; the determining module is further configured to determine the first threshold according to the type information or the capability information.

31. A communications apparatus, comprising:

a receiving module, configured to receive, on a second time domain resource, a first physical downlink control channel PDCCH sent by a network device;

a determining module, configured to determine a first time domain resource according to the first PDCCH, where a time interval between the first time domain resource and the second time domain resource is greater than or equal to a first threshold;

a sending module, configured to receive, on the first time domain resource, a first signal sent by the network device.

32. The communications apparatus of claim 31, wherein the receiving module is further configured to receive first information sent by the network device, and the first information is used to update a plurality of first parameters of the first time domain resource; wherein the first time domain resource is determined by one of the updated first parameters.

33. The communications apparatus of claim 32, wherein the first parameter is a slot offset, and wherein the slot offset is a number of slots of the first time domain resource that are offset relative to the second time domain resource.

34. The communications apparatus as claimed in claim 32, wherein the first information is one of: the updated slot offset, the difference between the updated slot offset and the original slot offset, and the first threshold.

35. The communications apparatus according to any one of claims 31 to 34, wherein when the time interval between the first time domain resource and the second time domain resource indicated by the first PDCCH is smaller than the first threshold, the determining module is specifically configured to determine the first time domain resource according to the second time domain resource by taking the first threshold as the time interval between the first time domain resource and the second time domain resource; or when a time interval between the first time domain resource indicated by the first PDCCH and the second time domain resource is greater than or equal to the first threshold, the determining module is specifically configured to determine the first time domain resource according to the second time domain resource.

36. The communications apparatus according to any one of claims 31 to 35, wherein the receiving module is further configured to receive second information sent by the network device, where the second information is used to indicate that the number of time slots of the first time domain resource that is offset from the second time domain resource is greater than or equal to the first threshold, or is used to indicate that the communications apparatus is in a power saving mode in a time slot between the first time domain resource and the second time domain resource, or is used to indicate that the terminal device is in the power saving mode at least in a time after the first time domain resource in the time slot in which the first time domain resource is located.

37. The communications apparatus of any one of claims 32 to 36, wherein the sending module is further configured to send power saving request signaling to the network device, the power saving request signaling being configured to trigger the network device to send at least one of the first information, a first threshold, and the second information.

38. A communication apparatus as claimed in any of claims 31 to 37, wherein the first signal is a first system information block, SIB1, a random access response or a terminal device collision resolution identity.

39. The communications apparatus of any of claims 31-37, wherein the first signal is an aperiodic channel state information reference signal, a-CSI-RS.

40. The apparatus according to any of claims 31 to 39, wherein the sending module is further configured to send type information or capability information of the communication apparatus to the network device; wherein the type information or the capability information is used for informing the network device to determine the first threshold according to the type information or the capability information.

41. A method of communication, comprising:

determining a plurality of allocation modes of time domain resources for transmitting a physical downlink data channel (PDSCH);

determining a first time domain resource, wherein the first time domain resource corresponds to a first allocation mode, the first allocation mode is one of the allocation modes, the time slot offset of the first time domain resource and a second time domain resource is greater than or equal to a second threshold, and the second threshold is an integer greater than 0;

sending a first Physical Downlink Control Channel (PDCCH) to a plurality of terminal devices on the second time domain resource, wherein the first PDCCH is used for indicating the first time domain resource;

transmitting a first PDSCH to the plurality of terminal devices on the first time domain resources.

42. The communication method according to claim 41, wherein the determining multiple allocation manners of time domain resources for transmitting PDSCH comprises:

the plurality of allocation manners are protocol predefined; or

After the determining the plurality of allocation manners of the first time domain resources, the communication method further includes:

sending the plurality of allocation modes to the plurality of terminal devices;

and the time slot offset in each of the multiple allocation manners is the time slot offset of the time domain resource corresponding to the allocation manner relative to the second time domain resource.

43. The communication method according to claim 41 or 42, wherein the determining the first time domain resource comprises:

when the time slot offset in the first allocation mode is smaller than the second threshold, taking the second threshold as the time slot offset of the first time domain resource and the second time domain resource, and determining the first time domain resource according to the second threshold, the second time domain resource and other parameters except the time slot offset in the first allocation mode; and/or

And when the time slot offset in the first allocation mode is greater than or equal to the second threshold, determining the first time domain resource according to the second time domain resource and the first allocation mode.

44. The communication method according to any one of claims 41 to 43, further comprising:

and sending the second threshold value to the plurality of terminal devices through a system message.

45. A method of communicating according to any of claims 41 to 44, further comprising:

and sending second information to the plurality of terminal devices, wherein the second information is used for indicating that the number of the time slots of the first time domain resource which is offset relative to the second time domain resource is greater than or equal to the second threshold value.

46. The communication method according to any of claims 41 to 45, wherein the messages carried in the first PDSCH are system messages or paging messages.

47. A method of communicating according to any of claims 41 to 46, further comprising:

receiving type information or capability information of the plurality of terminal devices from the plurality of terminal devices;

and determining the second threshold value according to the type information or the capability information.

48. A method of communication, comprising:

acquiring various allocation modes of time domain resources for transmitting a physical downlink data channel (PDSCH);

determining a first time domain resource according to the first PDCCH and a first allocation mode, wherein the first allocation mode is one of the allocation modes, the time slot offset between the first time domain resource and the second time domain resource is greater than or equal to a second threshold value, and the second threshold value is an integer greater than 0;

and receiving a first physical downlink data channel (PDSCH) sent by the network equipment on the first time domain resource.

49. The communication method according to claim 48, wherein the plurality of allocation manners are protocol predefined or received from the network device;

50. The method according to claim 48 or 49, wherein the determining the first time domain resource according to the first PDCCH and the first allocation formula comprises:

when the time slot offset between the first time domain resource and the second time domain resource indicated by the first PDCCH is smaller than the second threshold, taking the second threshold as the time slot offset between the first time domain resource and the second time domain resource, and determining the first time domain resource according to the second threshold, the second time domain resource and other parameters except the time slot offset in the first allocation mode; and/or

And when the time slot offset between the first time domain resource indicated by the first PDCCH and the second time domain resource is greater than or equal to the second threshold, determining the first time domain resource according to the second time domain resource and the first allocation mode.

51. The communication method according to any one of claims 48 to 50, further comprising:

and receiving the second threshold value sent by the network equipment through a system message.

52. The communication method according to any one of claims 48 to 51, further comprising:

receiving second information sent by the network device, where the second information is used to indicate that the number of time slots of the first time domain resource offset from the second time domain resource is greater than or equal to the second threshold.

53. The method of communicating according to any one of claims 48 to 52 wherein the message carried in the first PDSCH is a system message or a paging message.

54. A method of communicating according to any of claims 48 to 53, further comprising:

wherein the type information or the capability information is used for informing the network device to determine the second threshold according to the type information or the capability information.

55. A communication apparatus for performing the communication method according to any one of claims 41 to 54.

56. A computer-readable storage medium having stored therein program code for execution by a communication apparatus, the program code comprising instructions for performing the communication method of any one of claims 1 to 20 or 41 to 54.

57. A communications apparatus comprising a processor and a storage medium, the storage medium storing instructions that, when executed by the processor, cause the processor to perform a communications method according to any one of claims 1 to 20 or 41 to 54.