Communication method, device and storage medium

Abstract

Embodiments of the present application provide a communication method, apparatus, and storage medium relating to the field of communications. The method includes: a terminal device receiving first information from a network device, the first information being used to indicate transmission direction information and / or service load information; and the terminal device receiving downlink control information (DCI) from the network device based on the first information. Using the first information, the network device can configure a DCI transmission method based on the characteristics of the terminal device's service to be transmitted, thereby reducing the terminal device's blind detection complexity for DCI of different formats and types, reducing the terminal device's energy consumption, and improving the communication efficiency of the communication system.

Description

Technical Field

[0001] The present application relates to the field of mobile communication technologies, and in particular to a communication method, device, and storage medium. Background Art

[0002] In the new radio (NR) system, the interaction information between network equipment and terminal equipment is carried through physical channels, wherein the data sent by the network equipment is usually carried by the physical downlink shared channel (PDSCH), and the PDSCH is usually scheduled by the downlink control information (DCI) carried by the physical downlink control channel (PDCCH). Accordingly, the terminal equipment determines the frequency domain range for transmission with the network equipment based on the pre-configured bandwidth portion, and receives the DCI from the network equipment based on the control resource set (CORESET) and search space (SS) in the BWP, and then receives the service data scheduled by the DCI. Similarly, the network equipment also schedules the terminal equipment to send data through the DCI, and the data sent by the terminal equipment is usually carried by the physical uplink shared channel (PUSCH). Network equipment can send DCI of different formats to schedule terminal devices. Therefore, terminal devices need to detect DCI of different formats. For example, the format of DCI used to schedule PUSCH is different from the format of DCI used to schedule PDSCH, or the format of predefined DCI is different from the format of DCI based on terminal-specific configuration. DCI of different formats often has different sizes. The more DCI of different sizes that terminal devices need to detect, the higher the complexity of DCI detection, the greater the energy consumption, and the lower the efficiency.

[0003] At present, vertical industries are becoming increasingly mature, and high-speed, low-latency, and wide-connection communication services are increasing. In order to meet the increasingly high transmission needs of communication services, how to improve communication efficiency and save energy consumption of terminal equipment has become a technical problem that needs to be solved urgently. Summary of the Invention

[0004] The embodiments of the present application provide a communication method, apparatus, and storage medium for reducing the complexity of DCI detection by terminal devices during communication, improving DCI detection efficiency, reducing energy consumption of network devices and terminal devices, and improving communication efficiency and resource utilization.

[0005] In a first aspect, a communication method is provided, which includes: receiving first information from a network device, where the first information is used to indicate transmission direction information and / or service load information; and receiving downlink control information DCI from the network device based on the first information.

[0006] The method may be performed by a first communication device, which may be a communication device or a communication device capable of supporting the communication device to implement the functions required by the method, such as a chip. Exemplarily, the first communication device is a terminal device, or a chip configured in the terminal device to implement the functions of the terminal device, or other components configured to implement the functions of the terminal device. In the following description, the first communication device is assumed to be a terminal device.

[0007] The terminal device receives the first information from the network device, and then determines the transmission direction information and / or service load information. Through the first information, the terminal device can adjust the method of receiving DCI to realize DCI transmission according to the characteristics of the service to be transmitted, thereby meeting service needs while reducing the consumption of blind detection DCI.

[0008] In an optional implementation manner, the transmission direction information indicates at least one of the following:

[0009] a first transmission direction state, used to indicate that the DCI size of the second format is aligned to the DCI size of the first format;

[0010] A second transmission direction state, used to indicate that the terminal device only receives the DCI in the first format;

[0011] a third transmission direction state, configured to indicate that the DCI size of the first format is aligned to the DCI size of the second format;

[0012] a fourth transmission direction state, used to indicate that the terminal device only receives DCI in the second format;

[0013] a default transmission direction state, used to instruct the terminal device to receive the DCI in the first format and the DCI in the second format;

[0014] The DCI in the first format is DCI for scheduling uplink transmission, and the DCI in the second format is DCI for scheduling downlink transmission.

[0015] Based on the transmission direction indication information, the network device can indicate the size alignment method or detection of the first format DCI and / or the second format DCI, and then the terminal device adjusts the method of receiving the first format DCI and / or the second format DCI, simplifying the blind detection complexity of DCI, and the terminal device can determine the restoration of normal DCI transmission through the default transmission direction state to suit services with different transmission characteristics.

[0016] In an optional embodiment, the alignment method includes zero padding and truncation.

[0017] In an optional embodiment, when the first information indicates the second transmission direction state, the DCI in the first format does not include a DCI format indication field; and / or, when the first information indicates the fourth transmission direction state, the DCI in the second format does not include a DCI format indication field.

[0018] When the service to be transmitted includes only uplink service or only downlink service, the terminal device can detect only the DCI of the first format or only the DCI of the second format. In this case, the terminal device only detects DCI of one format, and the field originally used to indicate the DCI format can be omitted or reused to save indication overhead, reduce DCI load, and improve DCI transmission reliability.

[0019] In an optional implementation manner, the traffic load information indicates at least one of the following:

[0020] A first load state, used to indicate that the service load of the terminal device is heavy;

[0021] The second load state is used to indicate that the service load of the terminal device is light.

[0022] The service load information may be used to indicate the size of the service volume to be transmitted by the terminal device.

[0023] In an optional embodiment, when the terminal device is in the first load state, the terminal device only detects the first type of DCI, or detects the first type of DCI in the search space corresponding to the second type of DCI; and / or, when the terminal device is in the second load state, the terminal device only detects the second type of DCI, or detects the second type of DCI in the search space corresponding to the first type of DCI; and / or, when the terminal device is in the default load state, the terminal device detects the first type of DCI in the search space corresponding to the first type of DCI, and / or, detects the second type of DCI in the search space corresponding to the second type of DCI; wherein the format of the first type of DCI is different from that of the second type of DCI, and the indication field included in the second type of DCI and the size of the indication field are predefined.

[0024] The terminal device can determine to detect the first type of DCI and / or the second type of DCI based on the service load information, wherein the service load information is used to indicate the size of the service volume to be transmitted by the terminal device. That is to say, for the first load state, it can be understood that when the service volume to be transmitted by the terminal device is large, the terminal device and the network device can detect the first type of DCI in the spare search space, and the spare search space is, for example, the search space of the second type of DCI, thereby improving the transmission rate and optimizing the user experience. For the second load state, it can be understood that when the service volume to be transmitted by the terminal device is small, the network device can reduce the frequency of blind detection of DCI by the terminal device by increasing the period of the search space, or avoid unnecessary detection of the first type of DCI, thereby saving communication resources and energy consumption of the terminal device. The default load state is used to indicate the restoration to the original transmission state. Through the first information, the network device can improve the DCI scheduling performance without reconfiguring the SS of the terminal device, and schedule the terminal device to transmit a larger TB in more PDCCH detection opportunities, thereby meeting the transmission requirements of the terminal device in the overload state, improving the user experience, and saving the signaling consumption of the network device for SS reconfiguration. Moreover, when the traffic volume to be transmitted is not large, the network equipment can still flexibly schedule the terminal equipment through the first type of DCI, which is conducive to coping with sudden traffic and saves power consumption and the signaling overhead of SS reconfiguration of the network equipment.

[0025] In an optional implementation, receiving DCI from the network device according to the first information includes: receiving DCI from the network device according to the first information within a valid time.

[0026] By limiting the effective time of the first information, the first information effective at different time periods can be configured according to the characteristics of the service to be transmitted, thereby adjusting the DCI transmission mode more flexibly.

[0027] In an optional implementation, the effective time is determined according to effective time indication information from the network device.

[0028] In an optional implementation manner, the validity time indication information indicates at least one of a period, a duration, and an initial offset, wherein:

[0029] The period is the period of the effective time;

[0030] The duration is the length of time during which the effective time is in one cycle;

[0031] The initial offset is the offset between the starting time of the effective time in a cycle and the starting time of the cycle in which the effective time belongs.

[0032] In an optional implementation, the method further includes: sending transmission characteristic information to the network device, where the transmission characteristic information is used to indicate characteristics of the service to be transmitted by the terminal device.

[0033] In an optional implementation, the first information is carried in a radio resource control RRC message, or in a media access control element MAC CE.

[0034] The terminal device can report the characteristics of the service to be transmitted by sending transmission characteristic information to the network device, so that the network device can determine the first information based on the subsequent service transmission characteristics of the terminal device, thereby better improving the user experience.

[0035] In an optional implementation, the first information is further used to indicate how the SPS resources are used.

[0036] It can be understood that the first information not only indicates how the terminal device detects DCI, but also indicates the use or release of SPS resources by the terminal device, or the terminal device determines how to use SPS resources based on the transmission direction state and / or service load state indicated by the first information. By indicating the use of SPS resources with the first information, the terminal device can better use SPS resources according to the characteristics of the service to be transmitted, thereby reducing system consumption.

[0037] In an optional implementation, the terminal device may determine the transmission direction information, service load information, and SPS resource usage information through the first information, thereby maximizing the utilization rate of the indication message.

[0038] In a second aspect, a second communication method is provided, which includes: sending first information to a terminal device, where the first information is used to indicate transmission direction information and / or service load information; and sending downlink control information DCI to the terminal device.

[0039] The method may be performed by a second communication device, which may be a communication device or a communication device capable of supporting the communication device in implementing the functions required by the method, such as a chip. Exemplarily, the second communication device is a network device, or a chip configured within the network device for implementing the functions of the network device, or other component for implementing the functions of the network device. The following description assumes that the second communication device is a network device.

[0040] The network device can use the first information to indicate the terminal device's transmission direction information and / or service load information, and send DCI to the terminal device based on the DCI transmission method indicated by the first information. Using the first information, the network device can adjust the DCI transmission method based on the characteristics of the service to be transmitted, thereby improving the user experience and saving DCI transmission consumption.

[0041] In an optional implementation manner, the transmission direction information indicates at least one of the following:

[0042] a first transmission direction state, used to indicate that the DCI size of the second format is aligned to the DCI size of the first format;

[0043] A second transmission direction state, used to indicate that the terminal device only receives the DCI in the first format;

[0044] a third transmission direction state, configured to indicate that the DCI size of the first format is aligned to the DCI size of the second format;

[0045] a fourth transmission direction state, used to indicate that the terminal device only receives DCI in the second format;

[0046] a default transmission direction state, used to instruct the terminal device to receive the DCI in the first format and the DCI in the second format;

[0047] The DCI in the first format is DCI for scheduling uplink transmission, and the DCI in the second format is DCI for scheduling downlink transmission.

[0048] Based on the transmission direction indication information, the network device can indicate the size alignment or detection of the first format DCI and / or the second format DCI, and then adjust the transmission method of the first format DCI and / or the second format DCI, simplify the blind detection complexity of DCI, and can instruct the terminal device to resume normal DCI transmission through the default transmission direction state to suit services with different transmission characteristics.

[0049] In an optional embodiment, the alignment method includes zero padding and truncation.

[0050] In an optional embodiment, when the first information indicates the second transmission direction state, the DCI in the first format does not include a DCI format indication field; and / or, when the first information indicates the fourth transmission direction state, the DCI in the second format does not include a DCI format indication field.

[0051] When the service to be transmitted includes only uplink service or only downlink service, the network device may only send DCI in the first format or only detect DCI in the second format. In this case, the network device only transmits DCI in one format, and the field originally used to indicate the DCI format can be omitted or reused to save indication overhead, reduce DCI load, and improve DCI transmission reliability.

[0052] In an optional implementation manner, the traffic load information indicates at least one of the following:

[0053] A first load state, used to indicate that the service load of the terminal device is heavy;

[0054] The second load state is used to indicate that the service load of the terminal device is light.

[0055] The service load information may be used to indicate the size of the service volume to be transmitted by the terminal device.

[0056] In an optional embodiment, when the first information indicates the first load state, the network device only sends the first type of DCI, or sends the first type of DCI in the search space corresponding to the second type of DCI; and / or, when the first information indicates the second load state, the network device only sends the second type of DCI, or sends the second type of DCI in the search space corresponding to the first type of DCI; and / or, when the first information indicates the default load state, the network device sends the first type of DCI in the search space corresponding to the first type of DCI, and / or, sends the second type of DCI in the search space corresponding to the second type of DCI; wherein the format of the first type of DCI is different from that of the second type of DCI, and the indication field included in the second type of DCI and the size of the indication field are predefined.

[0057] The network device can indicate the transmission mode of the first type of DCI and / or the second type of DCI based on the service load information, wherein the service load information is used to indicate the size of the service volume to be transmitted by the terminal device. That is to say, for the first load state, it can be understood that when the service volume to be transmitted by the terminal device is large, the terminal device and the network device can detect the first type of DCI in the spare search space, and the spare search space is, for example, the search space of the second type of DCI, thereby improving the transmission rate and optimizing the user experience. For the second load state, it can be understood that when the service volume to be transmitted by the terminal device is small, the network device can reduce the frequency of blind detection of DCI by the terminal device by increasing the period of the search space, or avoid unnecessary detection of the first type of DCI, thereby saving communication resources and energy consumption of the terminal device. The default load state is used to indicate the restoration to the original transmission state. Through the first information, the network device can improve the DCI scheduling performance without reconfiguring the SS of the terminal device, and schedule the terminal device to transmit a larger TB in more PDCCH detection opportunities, thereby meeting the transmission requirements of the terminal device in the overload state, improving the user experience, and saving the signaling consumption of the network device for SS reconfiguration. Moreover, when the traffic volume to be transmitted is not large, the network equipment can still flexibly schedule the terminal equipment through the first type of DCI, which is conducive to coping with sudden traffic and saves power consumption and the signaling overhead of SS reconfiguration of the network equipment.

[0058] In an optional implementation, sending downlink control information DCI to the terminal device includes: sending downlink control information DCI to the terminal device within an effective time.

[0059] By limiting the effective time of the first information, the first information effective at different time periods can be configured according to the characteristics of the service to be transmitted, thereby adjusting the DCI transmission mode more flexibly.

[0060] In an optional implementation, the effective time is determined according to effective time indication information from the network device.

[0061] In an optional implementation manner, the validity time indication information indicates at least one of a period, a duration, and an initial offset, wherein:

[0062] The period is the period of the effective time;

[0063] The duration is the length of time during which the effective time is in one cycle;

[0064] The initial offset is the offset between the starting time of the effective time in a cycle and the starting time of the cycle in which the effective time belongs.

[0065] In an optional implementation, the method further includes: receiving transmission characteristic information from the terminal device, where the transmission characteristic information is used to indicate characteristics of the service to be transmitted by the terminal device.

[0066] In an optional implementation, the first information is carried in a radio resource control RRC message, or in a media access control element MAC CE.

[0067] The network device can determine the characteristics of the service to be transmitted by receiving transmission characteristic information from the terminal device, and then determine the first information, thereby better improving the user experience.

[0068] In an optional implementation, the first information is further used to indicate how the SPS resources are used.

[0069] It can be understood that the first information not only indicates how the terminal device detects DCI, but also indicates how the terminal device uses or releases SPS resources, or the network device uses the first information to indicate how the terminal device uses SPS resources. By indicating the use of SPS resources with the first information, the signaling overhead of the network device instructing the terminal device to release resources through DCI or RRC reconfiguration messages can be saved, thereby reducing system consumption.

[0070] In an optional implementation, the network device may simultaneously indicate the transmission direction information, the service load information, and the SPS resource usage information through the first information, thereby maximizing the utilization rate of the indication message.

[0071] In a third aspect, a third communication method is provided, comprising: receiving second information from a network device, where the second information is used to indicate how SPS resources are used; and using the SPS resources for transmission according to the second information.

[0072] The method may be performed by a third communication device, which may be a communication device or a communication device capable of supporting the communication device in implementing the functions required by the method, such as a chip. Exemplarily, the third communication device is a terminal device, or a chip configured in the terminal device for implementing the functions of the terminal device, or other component for implementing the functions of the terminal device. The following description assumes that the third communication device is a terminal device.

[0073] SPS resources are periodic resources. When SPS resources are valid, terminal devices only need to use SPS resources for transmission according to the configuration of high-level signaling, without the need for DCI scheduling. Due to the scheduling-free feature of SPS resources, SPS transmission can be used for low-latency transmission or for long-term, continuous transmission, thereby improving communication efficiency. Network equipment can determine whether it is necessary to instruct the terminal device to release a certain type of SPS resource based on the characteristics of the service to be transmitted by the terminal device, or to release all SPS resources and make more resources available to other terminal devices, thereby achieving flexible scheduling of the communication system.

[0074] In an optional implementation manner, the second information may indicate at least one of the following:

[0075] The first indication information is used to instruct the terminal device to release, deactivate or not apply the DL SPS resource;

[0076] The second indication information is used to instruct the terminal device to release, deactivate or not apply the UL configuredgrant resource;

[0077] The third indication information is used to instruct the terminal device to release, deactivate or not apply the DL SPS resources and UL configured grant resources;

[0078] The default indication information is used to instruct the terminal device to activate or apply DL SPS resources and UL configured grant resources.

[0079] In an optional embodiment, the second information is determined based on the characteristics of the service to be transmitted by the terminal device, wherein the “release or not apply” can be understood as deactivating or releasing resources. Since SPS resources are periodic transmission resources configured by the network device for the terminal device, when the network device determines that data will not be transmitted through the DL SPS resources in the next period of time, the terminal device does not need to receive downlink data through the DL SPS resources, and therefore the DL SPS resources can be released to save transmission resources of the downlink control channel. Releasing resources can also be understood as not applying the resources for transmission. Similarly, the network device can instruct the terminal device to release or deactivate the UL configured grant resources based on the characteristics of the service to be transmitted by the terminal device, so as to improve the overall resource utilization of the communication system.

[0080] In an optional implementation, the method further includes receiving a transmission feature request from a network device, for instructing the terminal device to report the transmission feature information.

[0081] In an optional implementation, the method further includes sending transmission characteristic information to the network device, where the transmission characteristic information is used to indicate characteristics of the service to be transmitted by the terminal device.

[0082] The network device and the terminal device can implement the interaction of the service feature information to be transmitted by the terminal device, so that the network device can more accurately optimize the use of SPS resources according to the service features and improve the resource utilization of the communication system.

[0083] In an optional implementation, the method further includes determining an effective time of the second information.

[0084] In an optional implementation, the method further includes receiving valid time indication information from the network device. The correspondence between the valid time indication information and the second information can be one-to-one or one-to-many.

[0085] In an optional implementation manner, the validity time indication information indicates at least one of a period, a duration, and an initial offset, wherein:

[0086] The period is the period of the effective time;

[0087] The duration is the length of time during which the effective time is in one cycle;

[0088] The initial offset is the offset between the starting time of the effective time in a cycle and the starting time of the cycle in which the effective time belongs.

[0089] In an optional implementation, the second information is carried in a radio resource control RRC message, or in a media access control element MAC CE.

[0090] According to the communication method provided in the embodiment of the present application, the terminal device can determine the transmission method of the SPS resource through the second information, thereby improving resource utilization; the network device can send the first information and the second information to the terminal device according to the characteristics to be transmitted of the terminal device. Furthermore, the effective time of the first information and / or the second information can be configured through the effective time indication information, thereby realizing flexible control of the communication transmission of the terminal device according to the service characteristics, optimizing the user experience while improving the resource utilization of the communication system.

[0091] In a fourth aspect, a fourth communication method is provided, which includes: sending second information to a terminal device, where the second information is used to indicate how SPS resources are used; and using the SPS resources for transmission according to the second information.

[0092] The method may be performed by a fourth communication device, which may be a communication device or a communication device capable of supporting the communication device in implementing the functions required by the method, such as a chip. Exemplarily, the fourth communication device is a network device, or a chip configured within the network device for implementing the functions of the network device, or other component for implementing the functions of the network device. The following description assumes that the fourth communication device is a network device.

[0093] SPS resources are periodic resources. When SPS resources are valid, network devices only need to configure the transmission method of SPS resources through high-layer signaling, without the need for DCI scheduling. Due to the scheduling-free nature of SPS resources, SPS transmission can be used for low-latency transmission or for long-term, continuous transmission, thereby improving communication efficiency. Network devices can determine whether to instruct terminal devices to release a certain type of SPS resource or release all SPS resources based on the characteristics of the service to be transmitted by the terminal device, thereby freeing up more resources for other terminal devices and achieving flexible scheduling of the communication system.

[0094] In an optional implementation manner, the second information may indicate at least one of the following:

[0095] The first indication information is used to instruct the terminal device to release, deactivate or not apply the DL SPS resource;

[0096] The second indication information is used to instruct the terminal device to release, deactivate or not apply the UL configuredgrant resource;

[0097] The third indication information is used to instruct the terminal device to release, deactivate or not apply the DL SPS resources and UL configured grant resources;

[0098] The default indication information is used to instruct the terminal device to activate or apply DL SPS resources and UL configured grant resources.

[0099] In an optional embodiment, the second information is determined based on the characteristics of the service to be transmitted by the terminal device, wherein the “release or not apply” can be understood as deactivating or releasing resources. Since SPS resources are periodic transmission resources configured by the network device for the terminal device, when the network device determines that data will not be transmitted through the DL SPS resources in the next period of time, the terminal device does not need to receive downlink data through the DL SPS resources, and therefore the DL SPS resources can be released to save transmission resources of the downlink control channel. Releasing resources can also be understood as not applying the resources for transmission. Similarly, the network device can instruct the terminal device to release or deactivate the UL configured grant resources based on the characteristics of the service to be transmitted by the terminal device, so as to improve the overall resource utilization of the communication system.

[0100] In an optional implementation, the method further includes sending a transmission feature request to the terminal device, for instructing the terminal device to report the transmission feature information.

[0101] In an optional implementation, the method further includes receiving transmission characteristic information from the terminal device, where the transmission characteristic information is used to indicate characteristics of a service to be transmitted by the terminal device.

[0102] The network device and the terminal device can implement the interaction of the service feature information to be transmitted by the terminal device, so that the network device can more accurately optimize the use of SPS resources according to the service features and improve the resource utilization of the communication system.

[0103] In an optional implementation, the method further includes determining an effective time of the second information.

[0104] In an optional implementation, the method further includes sending valid time indication information to the terminal device. The correspondence between the valid time indication information and the second information can be one-to-one or one-to-many.

[0105] In an optional implementation manner, the validity time indication information indicates at least one of a period, a duration, and an initial offset, wherein:

[0106] The period is the period of the effective time;

[0107] The duration is the length of time during which the effective time is in one cycle;

[0108] The initial offset is the offset between the starting time of the effective time in a cycle and the starting time of the cycle in which the effective time belongs.

[0109] In an optional implementation, the second information is carried in a radio resource control RRC message, or in a media access control element MAC CE.

[0110] According to the communication method provided in the embodiment of the present application, the network device can improve resource utilization by instructing the terminal device to use SPS resources through the second information; the network device can send the first information and the second information to the terminal device according to the characteristics to be transmitted of the terminal device. Furthermore, the effective time of the first information and / or the second information can be configured through the effective time indication information, so as to realize flexible control of the communication transmission of the terminal device according to the service characteristics, optimize the user experience and improve the resource utilization of the communication system.

[0111] In a fifth aspect, a communication device is provided, for example, the communication device is the first communication device described above. The first communication device is configured to perform the method described in the first aspect or any possible embodiment. Specifically, the first communication device may include modules configured to perform the method described in the first aspect or any possible embodiment, for example, a processing module and a transceiver module. Exemplarily, the transceiver module may include a transmitting module and a receiving module. The transmitting module and the receiving module may be different functional modules, or they may be the same functional module but capable of performing different functions. Exemplarily, the first communication device is a communication device, or a chip or other component provided in a communication device. Exemplarily, the communication device is a network device. Below, the first communication device is taken as an example of a terminal device. For example, the transceiver module may be implemented using a transceiver, and the processing module may be implemented using a processor. Alternatively, the transmitting module may be implemented using a transmitter, and the receiving module may be implemented using a receiver. The transmitter and receiver may be different functional modules, or they may be the same functional module but capable of performing different functions. If the first communication device is a communication device, the transceiver may be implemented, for example, using an antenna, feeder, codec, etc. within the communication device. Alternatively, if the first communication device is a chip provided in a communication device, then the transceiver (or transmitter and receiver) is, for example, a communication interface in the chip, which is connected to a radio frequency transceiver component in the communication device to transmit and receive information via the radio frequency transceiver component. In the introduction to the fifth aspect, the first communication device is still described as a terminal device, and the processing module and the transceiver module are used as examples.

[0112] in,

[0113] The transceiver module receives first information from a network device, where the first information is used to indicate transmission direction information and / or service load information;

[0114] The processing module is configured to receive downlink control information DCI from the network device according to the first information through the transceiver module.

[0115] In an optional implementation manner, the transmission direction information indicates at least one of the following:

[0116] a first transmission direction state, used to indicate that the DCI size of the second format is aligned to the DCI size of the first format;

[0117] A second transmission direction state, used to indicate that the terminal device only receives the DCI in the first format;

[0118] a third transmission direction state, configured to indicate that the DCI size of the first format is aligned to the DCI size of the second format;

[0119] a fourth transmission direction state, used to indicate that the terminal device only receives DCI in the second format;

[0120] a default transmission direction state, used to instruct the terminal device to receive the DCI in the first format and the DCI in the second format;

[0121] The DCI in the first format is DCI for scheduling uplink transmission, and the DCI in the second format is DCI for scheduling downlink transmission.

[0122] In an optional embodiment, the alignment method includes zero padding and truncation.

[0123] In an optional embodiment, when the first information indicates the second transmission direction state, the DCI in the first format does not include a DCI format indication field; and / or, when the first information indicates the fourth transmission direction state, the DCI in the second format does not include a DCI format indication field.

[0124] In an optional implementation manner, the traffic load information indicates at least one of the following:

[0125] A first load state, used to indicate that the service load of the terminal device is heavy;

[0126] The second load state is used to indicate that the service load of the terminal device is light.

[0127] The service load information may be used to indicate the size of the service volume to be transmitted by the terminal device.

[0128] In an optional embodiment, when the communication device is in the first load state, the transceiver module only detects the first type of DCI, or detects the first type of DCI in the search space corresponding to the second type of DCI; and / or, when the communication device is in the second load state, the transceiver module only detects the second type of DCI, or detects the second type of DCI in the search space corresponding to the first type of DCI; and / or, when the communication device is in the default load state, the transceiver module detects the first type of DCI in the search space corresponding to the first type of DCI, and / or, detects the second type of DCI in the search space corresponding to the second type of DCI; wherein the format of the first type of DCI is different from that of the second type of DCI, and the indication field included in the second type of DCI and the size of the indication field are predefined.

[0129] In an optional implementation, the transceiver module is configured to receive DCI from the network device according to the first information within the effective time.

[0130] In an optional implementation, the effective time is determined according to effective time indication information from the network device.

[0131] In an optional implementation manner, the validity time indication information indicates at least one of a period, a duration, and an initial offset, wherein:

[0132] The period is the period of the effective time;

[0133] The duration is the length of time during which the effective time is in one cycle;

[0134] The initial offset is the offset between the starting time of the effective time in a cycle and the starting time of the cycle in which the effective time belongs.

[0135] In an optional implementation, the transceiver module is further configured to send transmission characteristic information to the network device, where the transmission characteristic information is used to indicate characteristics of the service to be transmitted of the terminal device.

[0136] In an optional implementation, the first information is carried in a radio resource control RRC message, or in a media access control element MAC CE.

[0137] In an optional implementation, the first information is further used to indicate how the SPS resources are used.

[0138] In an optional implementation, the processing module may determine transmission direction information, service load information, and SPS resource usage information through the first information, thereby maximizing the indication message utilization rate.

[0139] Regarding the technical effects brought about by the fifth aspect or various optional implementations, reference may be made to the introduction to the technical effects of the first aspect or corresponding implementations.

[0140] In a sixth aspect, a communication device is provided, for example, the second communication device as described above. The second communication device is configured to perform the method described in the second aspect or any possible embodiment. Specifically, the second communication device may include modules for performing the method described in the second aspect or any possible embodiment, for example, a processing module and a transceiver module. Exemplarily, the transceiver module may include a transmitting module and a receiving module. The transmitting module and the receiving module may be different functional modules, or they may be the same functional module but capable of performing different functions. Exemplarily, the second communication device is a communication device, or a chip or other component provided in the communication device. Exemplarily, the communication device is a network device. Below, the second communication device is used as an example. For example, the transceiver module may be implemented using a transceiver, and the processing module may be implemented using a processor. Alternatively, the transmitting module may be implemented using a transmitter, and the receiving module may be implemented using a receiver. The transmitter and receiver may be different functional modules, or they may be the same functional module but capable of performing different functions. If the second communication device is a communication device, the transceiver may be implemented, for example, using an antenna, feeder, codec, etc. within the communication device. Alternatively, if the second communication device is a chip provided in a communication device, then the transceiver (or transmitter and receiver) is, for example, a communication interface in the chip, which is connected to a radio frequency transceiver component in the communication device to transmit and receive information via the radio frequency transceiver component. In the introduction to the sixth aspect, the second communication device is still described as a terminal device, and the processing module and the transceiver module are used as examples.

[0141] in,

[0142] The transceiver module sends first information to the terminal device, where the first information is used to indicate transmission direction information and / or service load information;

[0143] The transceiver module is also used to send downlink control information DCI to the terminal device.

[0144] In an optional implementation, the processing module is used to determine the first information.

[0145] In an optional implementation manner, the transmission direction information indicates at least one of the following:

[0146] a first transmission direction state, used to indicate that the DCI size of the second format is aligned to the DCI size of the first format;

[0147] A second transmission direction state, used to indicate that the terminal device only receives the DCI in the first format;

[0148] a third transmission direction state, configured to indicate that the DCI size of the first format is aligned to the DCI size of the second format;

[0149] a fourth transmission direction state, used to indicate that the terminal device only receives DCI in the second format;

[0150] a default transmission direction state, used to instruct the terminal device to receive the DCI in the first format and the DCI in the second format;

[0151] The DCI in the first format is DCI for scheduling uplink transmission, and the DCI in the second format is DCI for scheduling downlink transmission.

[0152] In an optional embodiment, the alignment method includes zero padding and truncation.

[0153] In an optional embodiment, when the first information indicates the second transmission direction state, the DCI in the first format does not include a DCI format indication field; and / or, when the first information indicates the fourth transmission direction state, the DCI in the second format does not include a DCI format indication field.

[0154] In an optional implementation manner, the traffic load information indicates at least one of the following:

[0155] A first load state, used to indicate that the service load of the terminal device is heavy;

[0156] The second load state is used to indicate that the service load of the terminal device is light.

[0157] In an optional embodiment, when the first information indicates the first load state, the transceiver module only sends the first type of DCI, or sends the first type of DCI in the search space corresponding to the second type of DCI; and / or, when the first information indicates the second load state, the transceiver module only sends the second type of DCI, or sends the second type of DCI in the search space corresponding to the first type of DCI; and / or, when the first information indicates the default load state, the transceiver module sends the first type of DCI in the search space corresponding to the first type of DCI, and / or, sends the second type of DCI in the search space corresponding to the second type of DCI; wherein the format of the first type of DCI is different from that of the second type of DCI, and the indication field included in the second type of DCI and the size of the indication field are predefined.

[0158] In an optional implementation, sending downlink control information DCI to the terminal device includes: sending downlink control information DCI to the terminal device within an effective time.

[0159] In an optional implementation, the effective time is determined according to effective time indication information from the network device.

[0160] In an optional implementation manner, the validity time indication information indicates at least one of a period, a duration, and an initial offset, wherein:

[0161] The period is the period of the effective time;

[0162] The duration is the length of time during which the effective time is in one cycle;

[0163] The initial offset is the offset between the starting time of the effective time in a cycle and the starting time of the cycle in which the effective time belongs.

[0164] In an optional implementation, the method further includes: receiving transmission characteristic information from the terminal device, where the transmission characteristic information is used to indicate characteristics of the service to be transmitted by the terminal device.

[0165] In an optional implementation, the first information is carried in a radio resource control RRC message, or in a media access control element MAC CE.

[0166] In an optional implementation, the first information is further used to indicate how the SPS resources are used.

[0167] Regarding the technical effects brought about by the sixth aspect or various optional implementations, reference may be made to the introduction to the technical effects of the second aspect or corresponding implementations.

[0168] In a seventh aspect, a communication device is provided, for example, the third communication device described above. The third communication device is configured to perform the method described in the third aspect or any possible embodiment. Specifically, the third communication device may include modules configured to perform the method described in the third aspect or any possible embodiment, for example, a processing module and a transceiver module. Exemplarily, the transceiver module may include a transmitting module and a receiving module. The transmitting module and the receiving module may be different functional modules, or they may be the same functional module but capable of performing different functions. Exemplarily, the third communication device is a communication device, or a chip or other component provided in a communication device. Exemplarily, the communication device is a terminal device. Below, the third communication device is used as an example. For example, the transceiver module may be implemented using a transceiver, and the processing module may be implemented using a processor. Alternatively, the transmitting module may be implemented using a transmitter, and the receiving module may be implemented using a receiver. The transmitter and receiver may be different functional modules, or they may be the same functional module but capable of performing different functions. If the third communication device is a communication device, the transceiver may be implemented, for example, using an antenna, feeder, codec, etc. within the communication device. Alternatively, if the third communication device is a chip provided in a communication device, then the transceiver (or transmitter and receiver) is, for example, a communication interface in the chip, which is connected to a radio frequency transceiver component in the communication device to transmit and receive information via the radio frequency transceiver component. In the introduction to the seventh aspect, the third communication device is still described as a terminal device, and the processing module and the transceiver module are used as examples.

[0169] in,

[0170] The transceiver module is configured to receive second information from a network device, where the second information is used to indicate a usage mode of the SPS resource;

[0171] The processing module is configured to transmit the second information using SPS resources through the transceiver module.

[0172] In an optional implementation manner, the second information may indicate at least one of the following:

[0173] The first indication information is used to instruct the terminal device to release, deactivate or not apply the DL SPS resource;

[0174] The second indication information is used to instruct the terminal device to release, deactivate or not apply the UL configuredgrant resource;

[0175] The third indication information is used to instruct the terminal device to release, deactivate or not apply the DL SPS resources and UL configured grant resources;

[0176] The default indication information is used to instruct the terminal device to activate or apply DL SPS resources and UL configured grant resources.

[0177] In an optional implementation, the second information is determined according to characteristics of the service to be transmitted by the terminal device.

[0178] In an optional implementation, the transceiver module is further configured to receive a transmission feature request from a network device, and to instruct the terminal device to report the transmission feature information.

[0179] In an optional implementation, the transceiver module is further configured to send transmission characteristic information to the network device, where the transmission characteristic information is used to indicate characteristics of a service to be transmitted by the terminal device.

[0180] In an optional implementation, the processing module is further configured to determine an effective time of the second information.

[0181] In an optional implementation, the transceiver module is further configured to receive valid time indication information from a network device. The correspondence between the valid time indication information and the second information can be one-to-one or one-to-many.

[0182] In an optional implementation manner, the validity time indication information indicates at least one of a period, a duration, and an initial offset, wherein:

[0183] The period is the period of the effective time;

[0184] The duration is the length of time during which the effective time is in one cycle;

[0185] The initial offset is the offset between the starting time of the effective time in a cycle and the starting time of the cycle in which the effective time belongs.

[0186] In an optional implementation, the second information is carried in a radio resource control RRC message, or in a media access control element MAC CE.

[0187] Regarding the technical effects brought about by the seventh aspect or various optional implementations, reference may be made to the introduction to the technical effects of the third aspect or corresponding implementations.

[0188] In an eighth aspect, a communication device is provided, for example, the fourth communication device described above. The fourth communication device is configured to perform the method described in the fourth aspect or any possible embodiment. Specifically, the fourth communication device may include modules configured to perform the method described in the fourth aspect or any possible embodiment, for example, a processing module and a transceiver module. Exemplarily, the transceiver module may include a transmitting module and a receiving module. The transmitting module and the receiving module may be different functional modules, or they may be the same functional module but capable of performing different functions. Exemplarily, the fourth communication device is a communication device, or a chip or other component provided in a communication device. Exemplarily, the communication device is a network device. Below, the fourth communication device is used as an example. For example, the transceiver module may be implemented using a transceiver, and the processing module may be implemented using a processor. Alternatively, the transmitting module may be implemented using a transmitter, and the receiving module may be implemented using a receiver. The transmitter and receiver may be different functional modules, or they may be the same functional module but capable of performing different functions. If the fourth communication device is a communication device, the transceiver may be implemented, for example, using an antenna, feeder, codec, etc. within the communication device. Alternatively, if the fourth communication device is a chip provided in a communication device, then the transceiver (or transmitter and receiver) is, for example, a communication interface in the chip, which is connected to a radio frequency transceiver component in the communication device to transmit and receive information via the radio frequency transceiver component. In the description of the eighth aspect, the fourth communication device is still described as a terminal device, and the processing module and the transceiver module are used as examples.

[0189] in,

[0190] The transceiver module is configured to receive and send second information to the terminal device, where the second information is used to indicate a usage mode of the SPS resource;

[0191] The processing module is further configured to transmit the second information using SPS resources through the transceiver module.

[0192] In an optional implementation manner, the second information may indicate at least one of the following:

[0193] The first indication information is used to instruct the terminal device to release, deactivate or not apply the DL SPS resource;

[0194] The second indication information is used to instruct the terminal device to release, deactivate or not apply the UL configuredgrant resource;

[0195] The third indication information is used to instruct the terminal device to release, deactivate or not apply the DL SPS resources and UL configured grant resources;

[0196] The default indication information is used to instruct the terminal device to activate or apply DL SPS resources and UL configured grant resources.

[0197] In an optional implementation, the transceiver module is further configured to send a transmission feature request to the terminal device, to instruct the terminal device to report the transmission feature information.

[0198] In an optional implementation, the transceiver module is further configured to receive transmission characteristic information from a terminal device, where the transmission characteristic information is used to indicate characteristics of a service to be transmitted by the terminal device.

[0199] In an optional implementation, the processing module is further configured to determine an effective time of the second information.

[0200] In an optional implementation, the transceiver module is further configured to send valid time indication information to the terminal device. The correspondence between the valid time indication information and the second information can be one-to-one or one-to-many.

[0201] In an optional implementation manner, the validity time indication information indicates at least one of a period, a duration, and an initial offset, wherein:

[0202] The period is the period of the effective time;

[0203] The duration is the length of time during which the effective time is in one cycle;

[0204] The initial offset is the offset between the starting time of the effective time in a cycle and the starting time of the cycle in which the effective time belongs.

[0205] In an optional implementation, the second information is carried in a radio resource control RRC message, or in a media access control element MAC CE.

[0206] Regarding the technical effects brought about by the eighth aspect or various optional implementations, reference may be made to the introduction to the technical effects of the fourth aspect or corresponding implementations.

[0207] In a ninth aspect, a communication device is provided, which is, for example, the first communication device as described above. The communication device includes a processor. Optionally, it may also include a memory for storing computer instructions. The processor and the memory are coupled to each other to implement the method described in the first aspect or various possible implementations. Alternatively, the first communication device may not include a memory, and the memory may be located outside the first communication device. Optionally, the first communication device may also include a communication interface for communicating with other devices or equipment. The processor, the memory, and the communication interface are coupled to each other to implement the method described in the first aspect or various possible implementations. For example, when the processor executes the computer instructions stored in the memory, the first communication device executes the method in the first aspect or any one of the possible implementations. Exemplarily, the first communication device is a communication device, or a chip or other component provided in a communication device. Exemplarily, the communication device is a terminal device.

[0208] If the first communication device is a communication device, the communication interface is implemented, for example, by a transceiver (or transmitter and receiver) in the communication device, for example, the transceiver is implemented by an antenna, a feeder, and a codec in the communication device. Alternatively, if the first communication device is a chip provided in the communication device, the communication interface is, for example, an input / output interface of the chip, such as an input / output pin, etc., which is connected to a radio frequency transceiver component in the communication device to implement information transmission and reception through the radio frequency transceiver component.

[0209] In a tenth aspect, a communication device is provided, which is, for example, the second communication device as described above. The communication device includes a processor. Optionally, it may also include a memory for storing computer instructions. The processor and the memory are coupled to each other to implement the method described in the second aspect or various possible implementations. Alternatively, the second communication device may not include a memory, and the memory may be located outside the second communication device. Optionally, the second communication device may also include a communication interface for communicating with other devices or equipment. The processor, the memory, and the communication interface are coupled to each other to implement the method described in the second aspect or various possible implementations. For example, when the processor executes the computer instructions stored in the memory, the second communication device executes the method in the second aspect or any one of the possible implementations. Exemplarily, the second communication device is a communication device, or a chip or other component provided in a communication device. Exemplarily, the communication device is a network device.

[0210] If the second communication device is a communication device, the communication interface is implemented, for example, by a transceiver (or transmitter and receiver) in the communication device, for example, the transceiver is implemented by an antenna, a feeder, and a codec in the communication device. Alternatively, if the second communication device is a chip provided in the communication device, the communication interface is, for example, an input / output interface of the chip, such as an input / output pin, etc., which is connected to a radio frequency transceiver component in the communication device to implement information transmission and reception through the radio frequency transceiver component.

[0211] In an eleventh aspect, a communication device is provided, which is, for example, the third communication device described above. The communication device includes a processor. Optionally, it may also include a memory for storing computer instructions. The processor and the memory are coupled to each other to implement the method described in the third aspect or various possible implementations. Alternatively, the third communication device may not include a memory, and the memory may be located outside the third communication device. Optionally, the third communication device may also include a communication interface for communicating with other devices or equipment. The processor, the memory, and the communication interface are coupled to each other to implement the method described in the third aspect or various possible implementations. For example, when the processor executes the computer instructions stored in the memory, the third communication device executes the method in the third aspect or any one of the possible implementations. Exemplarily, the third communication device is a communication device, or a chip or other component provided in a communication device. Exemplarily, the communication device is a terminal device.

[0212] If the third communication device is a communication device, the communication interface is implemented, for example, by a transceiver (or transmitter and receiver) in the communication device. For example, the transceiver is implemented by an antenna, a feeder, and a codec in the communication device. Alternatively, if the third communication device is a chip provided in the communication device, the communication interface is, for example, an input / output interface of the chip, such as an input / output pin, etc. This communication interface is connected to a radio frequency transceiver component in the communication device to implement information transmission and reception through the radio frequency transceiver component.

[0213] In a twelfth aspect, a communication device is provided, which is, for example, the fourth communication device as described above. The communication device includes a processor. Optionally, it may also include a memory for storing computer instructions. The processor and the memory are coupled to each other to implement the method described in the fourth aspect or various possible implementations. Alternatively, the fourth communication device may not include a memory, and the memory may be located outside the fourth communication device. Optionally, the fourth communication device may also include a communication interface for communicating with other devices or equipment. The processor, the memory, and the communication interface are coupled to each other to implement the method described in the fourth aspect or various possible implementations. For example, when the processor executes the computer instructions stored in the memory, the fourth communication device executes the method in the fourth aspect or any one of the possible implementations. Exemplarily, the fourth communication device is a communication device, or a chip or other component provided in a communication device. Exemplarily, the communication device is a network device.

[0214] If the fourth communication device is a communication device, the communication interface is implemented, for example, by a transceiver (or transmitter and receiver) in the communication device, for example, the transceiver is implemented by an antenna, a feeder, and a codec in the communication device. Alternatively, if the fourth communication device is a chip provided in the communication device, the communication interface is, for example, an input / output interface of the chip, such as an input / output pin, etc., which is connected to a radio frequency transceiver component in the communication device to implement information transmission and reception through the radio frequency transceiver component.

[0215] In a thirteenth aspect, a chip is provided, comprising a processor and a communication interface, wherein the processor is coupled to the communication interface and is used to implement the method provided in the first aspect or any optional embodiment.

[0216] Optionally, the chip may further include a memory. For example, the processor may read and execute a software program stored in the memory to implement the method provided in the first aspect or any one of the optional embodiments. Alternatively, the memory may not be included in the chip but may be located external to the chip. In this case, the processor may read and execute a software program stored in the external memory to implement the method provided in the first aspect or any one of the optional embodiments.

[0217] In a fourteenth aspect, a chip is provided, comprising a processor and a communication interface, wherein the processor is coupled to the communication interface and is used to implement the method provided in the above-mentioned second aspect or any optional embodiment.

[0218] Optionally, the chip may further include a memory. For example, the processor may read and execute a software program stored in the memory to implement the method provided in the second aspect or any one of the optional embodiments. Alternatively, the memory may not be included in the chip but may be located external to the chip. In this case, the processor may read and execute a software program stored in the external memory to implement the method provided in the second aspect or any one of the optional embodiments.

[0219] In the fifteenth aspect, a chip is provided, comprising a processor and a communication interface, wherein the processor is coupled to the communication interface and is used to implement the method provided in the third aspect or any optional embodiment.

[0220] Optionally, the chip may further include a memory. For example, the processor may read and execute a software program stored in the memory to implement the method provided in the third aspect or any one of the optional embodiments. Alternatively, the memory may not be included in the chip but may be located external to the chip. In this case, the processor may read and execute a software program stored in the external memory to implement the method provided in the third aspect or any one of the optional embodiments.

[0221] In the sixteenth aspect, a chip is provided, comprising a processor and a communication interface, wherein the processor is coupled to the communication interface and is used to implement the method provided in the fourth aspect or any optional embodiment.

[0222] Optionally, the chip may further include a memory. For example, the processor may read and execute a software program stored in the memory to implement the method provided in the fourth aspect or any one of the optional embodiments. Alternatively, the memory may not be included in the chip but may be located external to the chip. In this case, the processor may read and execute a software program stored in the external memory to implement the method provided in the fourth aspect or any one of the optional embodiments.

[0223] In the seventeenth aspect, a communication system is provided, which includes the communication device described in the fifth aspect, the seventh aspect, the ninth aspect, the eleventh aspect, the thirteenth aspect or the fifteenth aspect, and the communication device described in the sixth aspect, the eighth aspect, the tenth aspect, the twelfth aspect, the fourteenth aspect or the sixteenth aspect.

[0224] In the eighteenth aspect, a computer-readable storage medium is provided, wherein the computer-readable storage medium is used to store computer instructions. When the computer instructions are executed on a computer, the computer executes the method described in the first aspect or any possible embodiment.

[0225] In the nineteenth aspect, a computer-readable storage medium is provided, wherein the computer-readable storage medium is used to store computer instructions. When the computer instructions are executed on a computer, the computer executes the method described in the second aspect or any possible embodiment.

[0226] In the twentieth aspect, a computer-readable storage medium is provided, wherein the computer-readable storage medium is used to store computer instructions. When the computer instructions are executed on a computer, the computer executes the method described in the third aspect or any possible embodiment.

[0227] In the twenty-first aspect, a computer-readable storage medium is provided, wherein the computer-readable storage medium is used to store computer instructions. When the computer instructions are executed on a computer, the computer executes the method described in the fourth aspect or any possible embodiment.

[0228] In the twenty-second aspect, a computer program product comprising instructions is provided, wherein the computer program product is used to store computer instructions. When the computer instructions are run on a computer, the computer is enabled to execute the method described in the above-mentioned first aspect or any possible implementation method.

[0229] In the twenty-third aspect, a computer program product comprising instructions is provided, wherein the computer program product is used to store computer instructions. When the computer instructions are run on a computer, the computer is enabled to execute the method described in the above-mentioned second aspect or any possible implementation method.

[0230] In the twenty-fourth aspect, a computer program product comprising instructions is provided, wherein the computer program product is used to store computer instructions, and when the computer instructions are run on a computer, the computer is enabled to execute the method described in the third aspect or any possible implementation method.

[0231] In aspect 25, a computer program product comprising instructions is provided, wherein the computer program product is used to store computer instructions, and when the computer instructions are run on a computer, the computer is enabled to execute the method described in aspect 4 or any possible implementation method.

[0232] In an embodiment of the present application, through the first information and / or the second information, the network device and the terminal device can adjust the DCI transmission mode and / or the SPS resource usage mode according to the characteristics of the service to be transmitted by the terminal device to improve communication efficiency and communication resource utilization. BRIEF DESCRIPTION OF THE DRAWINGS

[0233] Figure 1Schematic diagram of detecting DCI for terminal equipment;

[0234] Figure 2 A schematic diagram of an application scenario of an embodiment of the present application;

[0235] Figure 3 A flow chart of a communication method provided in an embodiment of the present application;

[0236] Figures 4A to 4C Three schematic diagrams of receiving DCI according to first information in an embodiment of the present application;

[0237] Figure 5A-5B Two flow charts of the communication method provided in the embodiments of the present application;

[0238] Figure 6 A flowchart of another communication method provided in an embodiment of the present application;

[0239] Figure 7 A schematic block diagram of a network device provided in an embodiment of the present application;

[0240] Figure 8 A schematic block diagram of a terminal device provided in an embodiment of the present application;

[0241] Figure 9 A schematic block diagram of a communication device provided in an embodiment of the present application;

[0242] Figure 10 Another schematic block diagram of a communication device provided in an embodiment of the present application;

[0243] Figure 11 Another schematic block diagram of a communication device provided in an embodiment of the present application;

[0244] Figure 12 Another schematic block diagram of a communication device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0245] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the embodiments of the present application will be further described in detail below with reference to the accompanying drawings.

[0246] Below, some terms used in the embodiments of the present application are explained to facilitate understanding by those skilled in the art.

[0247] 1) Terminal devices, including devices that provide voice and / or data connectivity to users. Specifically, these devices may provide voice, data, or both. Examples include handheld devices with wireless connectivity or processing devices connected to a wireless modem. These devices may communicate with the core network via a radio access network (RAN), exchanging voice or data with the RAN, or both. The terminal device may include user equipment (UE), wireless terminal device, mobile terminal device, device-to-device (D2D) terminal device, vehicle to everything (V2X) terminal device, machine-to-machine / machine-type communications (M2M / MTC) terminal device, Internet of Things (IoT) terminal device, light terminal device (light UE), reduced capability UE (REDCAP UE), subscriber unit (subscriber unit), subscriber station (subscriber station), mobile station (mobile station), remote station (remote station), access point (AP), remote terminal (remote terminal), access terminal (access terminal), user terminal (user terminal), user agent (user agent), or user device, etc. For example, it may include a mobile phone (or so-called "cellular" phone), a computer with a mobile terminal device, a portable, pocket-sized, handheld, or computer-built-in mobile device, etc. For example, personal communication service (PCS) phones, cordless phones, session initiation protocol (SIP) phones, wireless local loop (WLL) stations, personal digital assistants (PDAs), and other devices. Also included are constrained devices, such as those with low power consumption, limited storage capacity, or limited computing power.Examples include barcodes, radio frequency identification (RFID), sensors, global positioning systems (GPS), laser scanners, and other information sensing devices.

[0248] As an example and not a limitation, in the embodiments of the present application, the terminal device may also be a wearable device. Wearable devices may also be referred to as wearable smart devices or smart wearable devices, etc., which are a general term for wearable devices that are intelligently designed and developed using wearable technology for daily wear, such as glasses, gloves, watches, clothing, and shoes. A wearable device is a portable device that is worn directly on the body or integrated into the user's clothes or accessories. Wearable devices are not only hardware devices, but also achieve powerful functions through software support, data interaction, and cloud interaction. Broadly speaking, wearable smart devices include those that are fully functional, large in size, and can achieve complete or partial functions without relying on smartphones, such as smart watches or smart glasses, etc., as well as those that only focus on a certain type of application function and need to be used in conjunction with other devices such as smartphones, such as various smart bracelets, smart helmets, and smart jewelry for vital sign monitoring.

[0249] As an example and not a limitation, in the embodiment of the present application, the terminal device may also be an industrial sensor or a video surveillance terminal device.

[0250] The various terminal devices introduced above, if located on a vehicle (eg, placed in or installed in a vehicle), can be considered as vehicle-mounted terminal devices, which are also called on-board units (OBUs).

[0251] In the embodiment of the present application, the terminal device may further include a relay. Alternatively, it can be understood that anything that can communicate data with a base station can be considered a terminal device.

[0252] In the embodiments of the present application, the device for implementing the function of the terminal device can be a terminal device, or a device capable of supporting the terminal device to implement the function, such as a chip system, which can be installed in the terminal device. In the embodiments of the present application, the chip system can be composed of a chip, or it can include a chip and other discrete devices. In the technical solutions provided in the embodiments of the present application, the technical solutions provided in the embodiments of the present application are described by taking the terminal device as an example in which the device for implementing the function of the terminal is a terminal device.

[0253] 2) Network equipment, including, for example, access network (AN) equipment, such as a base station (e.g., access point), which can refer to a device in an access network that communicates with a wireless terminal device over the air interface through one or more cells, or, for example, a network device in a vehicle-to-everything (V2X) technology is a roadside unit (RSU). The base station can be used to convert received air frames to and from IP packets, acting as a router between the terminal device and the rest of the access network, where the rest of the access network may include an IP network. The RSU can be a fixed infrastructure entity that supports V2X applications and can exchange messages with other entities that support V2X applications. The network equipment can also coordinate attribute management of the air interface. For example, the network device may include an evolved base station (NodeB or eNB or e-NodeB, evolutionary Node B) in a long term evolution (LTE) system or long term evolution-advanced (LTE-A), or may also include a next generation node B (gNB) in a fifth generation mobile communication technology (5G) NR system (also referred to as an NR system) or may also include a centralized unit (CU) and a distributed unit (DU) in a cloud radio access network (Cloud RAN) system, but the embodiments of the present application are not limited thereto.

[0254] The network device may also include a core network device, such as an access and mobility management function (AMF) or a user plane function (UPF). Because the embodiments of the present application mainly involve access network devices, the network devices described herein refer to access network devices unless otherwise specified.

[0255] In the embodiments of the present application, the apparatus for implementing the function of the network device may be the network device, or may be a device capable of supporting the network device in implementing the function, such as a chip system, which may be installed in the network device. In the technical solutions provided in the embodiments of the present application, the technical solutions provided in the embodiments of the present application are described by taking the network device as an example.

[0256] 3) Bandwidth part (BWP): multiple physical resource blocks that are continuous in the frequency domain, generally configured by the network equipment for the terminal equipment. The terminal equipment receives or sends data within the BWP. Taking control resource transmission as an example, a BWP includes at least one control resource set, and the frequency domain resources included in the control resource set do not exceed the multiple physical resource blocks included in the BWP in the frequency domain. The LTE system is scheduled based on the carrier granularity in the frequency domain. It can be understood that data is scheduled and transmitted based on each carrier. In order to flexibly support the different bandwidth capabilities of different types of terminal equipment, the NR system introduces the concept of BWP, which divides a part of the bandwidth area for the terminal equipment within the carrier. The terminal equipment only needs to work on at least one BWP within a carrier configured by the network equipment, without having to understand the width of the entire carrier. The BWP is a subset of the system carrier bandwidth, and the multiple bandwidth areas can overlap in the frequency domain. The network device can activate one of the downlink / uplink bandwidth areas for the terminal device from the configured bandwidth area, transmit PDSCH and PDCCH to the terminal device in the activated downlink bandwidth area, and the terminal device transmits the uplink shared channel (physical uplink shared channel, PUSCH) to the network in the activated uplink bandwidth area. For example, the carrier is 100MHz, and the BWP1 configured for UE1 is 100MHz, which is equivalent to UE1 receiving data within the entire carrier range, while UE2 is configured to work on a 40MHz BWP2 within the carrier. Then UE2 only needs to receive data within the corresponding BWP2, and does not need to pay attention to scheduling and data transmission outside BWP2.

[0257] 4) Control Resource Set (CORESET): The frequency subbands and time symbols occupied in a BWP indicate the channel location in the frequency domain and are used to control channel transmission. The time domain resources of a CORESET can be continuous or discontinuous. For example, a CORESET occupies 12 RBs in a BWP and has a time domain length of two consecutive time domain symbols.

[0258] 5) Search space (SS): It can also be called search space set (SS set). For the convenience of expression, the expression of search space or search space set will be simplified to search space. The monitoring period and the specific time domain symbol timing in a specific time slot within a period indicate the position of the channel in the time domain. The time domain scheduling of the NR system is more flexible than that of the LTE system. The NR system supports flexible scheduling of multiple symbol lengths within one time slot. For example, the transmission time interval (TTI) can be 2 time domain symbols or 14 time domain symbols, and the SS is used to configure the monitoring period of the channel, which can be combined with the CORESET to receive the channel. For example, if the SS is configured for 5 time slots, the terminal device searches for the channel in the corresponding CORESET every 5 time slots.

[0259] 6) PDCCH detection

[0260] In the NR system, the network device can configure the BWP for the terminal device through the radio resource control (RRC) message and interact with the terminal device in the BWP. The BWP can be regarded as the frequency domain range for the network device and the terminal device to transmit information. Furthermore, the network device can configure the CORESET and SS for the terminal device and send the PDCCH to the terminal device during the detection opportunity composed of the CORESET and SS. The CORESET is used to determine the time-frequency resource pattern for PDCCH detection, while the SS is used to determine the period, time point, and DCI format of PDCCH detection. The PDCCH carries downlink control information (DCI), so the terminal device can detect DCI based on the CORESET and SS. The detection of PDCCH can also be called DCI detection, or blind detection of DCI.

[0261] It should be noted that the network device can configure different detection timings for DCIs of different formats, for example Figure 1As shown, the network device configures user-specific search space (UE-specific SS, USS) #1 and USS #2, and both correspond to CORESET #1; and the network device configures the terminal device to detect DCI formats 0_0 and 1_0 in USS #1 (identified by formats0-0-And-1-0), and the DCI formats 0_1 and 1_1 in USS #2 (identified by formats0-1-And-1-1). The terminal device performs PDCCH detection in the time-frequency resource set determined by "USS #1 + CORESET #1", and the detection objects are DCI format 0_0 and DCI format 1_0. In addition, the UE will also perform PDCCH detection in the time-frequency resource set determined by "USS #2 + CORESET #1", and the detection objects are DCI format 0_1 ​​and DCI format 1_1.

[0262] Among them, DCI format 0_0 is the DCI for scheduling PUSCH, DCI format 1_0 is the DCI for scheduling PDSCH; DCI format 0_1 ​​is the DCI for scheduling PUSCH, and DCI format 1_1 is the DCI for scheduling PDSCH.

[0263] 7) DCI size alignment

[0264] In NR, the sizes of the DCI for scheduling PUSCH and the DCI for scheduling PDSCH are aligned so that DCIs of different formats have the same number of bits. This can reduce the computational complexity and the complexity of UE detection of DCI. For example:

[0265] (a) In the common search space (CSS), DCI format 0_0 is aligned with DCI format 1_0.

[0266] (b) In the user-specific search space (UE-specific SS, USS), between DCI format 0_0 and DCI format 1_0, padding bits (such as "0") are always added to the smaller DCI format until it becomes the same as the larger DCI format.

[0267] (c) In the user-specific search space (UE-specific SS, USS), between DCI format 0_0 and DCI format 1_0, padding bits (such as "0") are always added to the smaller DCI format until it is the same as the larger DCI format.

[0268] In an embodiment of the present application, the "size alignment" refers to determining the number of bits of another second DCI based on the number of bits of a first DCI. For example, the network device sends the second DCI based on the size of the first DCI, and correspondingly, the terminal device detects the second DCI based on the size of the first DCI. "Size alignment" can also be understood as adjusting the DCI size, or as aligning the DCI sizes. For the sake of simplicity, it is referred to as alignment.

[0269] 8) Semi-persistent transmission

[0270] Semi-persistent transmission, also known as semi-persistent scheduling (SPS), means that network devices configure periodic transmission resources for terminal devices. In these periodic resources, terminal devices can transmit data without being scheduled through DCI. These resources include:

[0271] (a) Downlink semi-persistent scheduling (DL SPS): The network device configures periodic downlink resources for the terminal device. This is activated (the resources become valid) or deactivated (the resources become invalid) through a DCI. The terminal device can only perform downlink transmission when the resources are valid.

[0272] (b) UL configured grant type 1: The network device configures uplink periodic resources for the terminal device. Once configured, the resources are valid and do not require DCI activation / deactivation. The validity and invalidity of the resources can only be changed through RRC reconfiguration, for example, releasing the resources through RRC reconfiguration.

[0273] (c) UL configured grant type 2: The network device configures uplink periodic resources for the terminal device; activation / deactivation is performed through a DCI; the terminal device can only perform uplink transmission when the resources are valid.

[0274] For the sake of simplicity, they are collectively referred to as SPS in the embodiments of this application.

[0275] 9) Fallback DCI and non-fallback DCI

[0276] Fallback DCI refers to DCI that does not rely on user-specific (UE-specific) high-layer signaling configuration, in which the domain definition and domain size are usually pre-defined by the standard, or determined based on cell common parameters. Cell common parameters can be, for example, parameter information broadcast by network equipment through system information. Therefore, the TB scheduled by fallback DCI is smaller and the scheduling capability is relatively weak, for example, DCI format 0_0 and DCI format 1_0. Non-fallback DCI refers to DCI configured based on user-specific high-layer signaling, in which the domain definition and domain size can be determined by user-specific RRC configuration, so the scheduling capability is stronger, for example, DCI format 0_1 ​​and DCI format 1_1.

[0277] 10) "At least one" means one or more, and "more" means two or more. "And / or" describes the association relationship of the associated objects, indicating that three relationships may exist. For example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone, where A and B can be singular or plural. The character " / " generally indicates that the objects associated with each other are in an "or" relationship. "At least one of the following items" or similar expressions refers to any combination of these more than ten items, including any combination of single or plural items. For example, at least one of a, b, or c can mean: a, b, c, ab, ac, bc, or abc, where a, b, c can be single or plural.

[0278] Furthermore, unless otherwise specified, ordinal numbers such as "first" and "second" in the embodiments of this application are used to distinguish multiple objects and are not used to define the order, timing, priority, or importance of multiple objects. For example, the first wake-up signal and the second wake-up signal are only used to distinguish different wake-up signals and do not indicate differences in the content, priority, transmission order, or importance of the two wake-up signals.

[0279] The above introduces some concepts involved in the embodiments of the present application. The following introduces the technical features of the embodiments of the present application.

[0280] In NR systems, to further reduce terminal energy consumption and communication complexity, a lightweight terminal, also known as reduced capability user equipment (REDCAP UE), is proposed. Application scenarios of the lightweight terminal include the following:

[0281] (a) Industrial sensor network: The transmission service is mainly uplink (UL), and the service has obvious regularity.

[0282] (b) Video surveillance: UL accounts for an absolute proportion of transmission services, and the business volume remains stable for a long time.

[0283] (c) Wearable devices: Both downlink (DL) and UL transmission services exist, and the transmission traffic volume is large (for example, video calls in smart watches).

[0284] Terminal devices in different application scenarios have different frequencies of uplink or downlink transmission. It can be seen that if the REDCAP UE is scheduled according to the method in the prior art, the UE may perform unnecessary DCI format detection, resulting in an unnecessary increase in the number of detections and a waste of energy consumption. For idle SPS resources, if they are not released through DCI deactivation / RRC reconfiguration, it will cause a waste of resources. If the network equipment sends DCI / RRC signaling to the widely deployed REDCAP UEs one by one, it will cause a large amount of downlink transmission resource overhead.

[0285] In view of this, a technical solution of an embodiment of the present application is provided. In an embodiment of the present application, a network device can configure service feature indication information for a terminal device through first information. The terminal device can adjust the DCI detection method based on the first information to improve the detection efficiency of the DCI, or the terminal device can adjust the use of SPS resources based on the first information to improve the resource utilization of the communication system. For the network device, the DCI size can be aligned according to the configuration of the first information, reducing transmission consumption and improving the resource utilization of the communication system.

[0286] The technical solutions provided in the embodiments of the present application can be applied to the fourth generation mobile communication technology (the 4th generation, 4G) system, such as the LTE system, or can be applied to the 5G system, such as the NR system, or can also be applied to the next generation mobile communication system or other similar communication systems, as long as there is an entity that can initiate paging to another entity, and there is no specific limitation. In addition, in the introduction process of the embodiments of the present application, the air interface communication process between the network device and the terminal device is used as an example. In fact, the technical solutions provided in the embodiments of the present application can also be applied to the sidelink (SL), as long as one terminal device can initiate paging to another terminal device. For example, the technical solution provided in the embodiments of the present application can be applied to device-to-device (D2D) scenarios, which can be NR D2D scenarios or LTE D2D scenarios, etc., or can be applied to vehicle-to-everything (V2X) scenarios, which can be NR V2X scenarios or LTE V2X scenarios, etc. For example, it can be applied to vehicle networks, such as V2X, LTE-V, vehicle-to-vehicle (V2V), etc., or can be used in intelligent driving, intelligent connected vehicles and other fields.

[0287] See Figure 2 , is an application scenario of the embodiment of this application. Figure 2 In the present invention, the network device serves the terminal device through wireless transmission. The terminal device can receive the PDCCH and the DCI carried by the PDCCH from the network device.

[0288] Figure 2 The network device in the embodiment is, for example, a base station. Among them, the base station corresponds to different devices in different systems. For example, in a 4G system, it can correspond to a base station in 4G, such as eNB, and in a 5G system, it can correspond to a base station in 5G, such as gNB. Of course, the technical solution provided in the embodiment of the present application can also be applied to future mobile communication systems, so Figure 2 The network equipment in the figure can also correspond to the access network equipment in the future mobile communication system. Figure 2 Taking the network device as a base station as an example, in fact, referring to the previous introduction, the network device can also be RSU and other devices. In addition, Figure 2 The terminal device in the example is a mobile phone. In fact, according to the introduction to the terminal device in the previous article, it can be known that the terminal device in the embodiment of the present application is not limited to a mobile phone.

[0289] Example 1

[0290] The embodiment of the present application provides a communication method. For the sake of convenience, the following text takes the method executed by a network device and a terminal device as an example. Figure 2 The network architecture shown in the figure is taken as an example, therefore, the network devices described below can be Figure 2 The network devices in the network architecture shown in the figure, the terminal devices described below can be Figure 2 The terminal device in the network architecture shown in FIG. Figure 3 As shown, the communication method provided in the embodiment of the present application includes step S301 and step S302:

[0291] S301. A network device sends first information to a terminal device, where the first information is used to indicate transmission direction information and / or service load information. Correspondingly, the terminal device receives the first information from the network device.

[0292] S302. The network device sends downlink control information DCI to the terminal device. Correspondingly, the terminal device receives the DCI from the network device according to the first information.

[0293] Optionally, the method further includes step S303: the terminal device uses SPS resources for transmission according to the first information.

[0294] The network device indicates the transmission characteristic indication information to the terminal device through the first information, which includes transmission direction information and / or service load information, and then the terminal device can align the DCI size and perform DCI detection according to the transmission characteristic indication information. That is to say, the network device can configure the corresponding transmission characteristic indication information according to the characteristics of the service to be transmitted by the terminal device, reduce the complexity of transmitting DCI, and improve communication efficiency and resource utilization.

[0295] For step S301, the network device sends first information to the terminal device, where the first information is used to indicate transmission direction information and / or service load information; accordingly, the terminal device receives the first information from the network device.

[0296] The transmission direction information indicates characteristic information of DCI transmission, and is used to instruct the terminal device to detect DCI according to the transmission characteristics of the DCI. Specifically, the transmission direction information may indicate at least one of the following states:

[0297] a first transmission direction state, used to indicate that the DCI size of the second format is aligned to the DCI size of the first format;

[0298] A second transmission direction state, used to indicate that the terminal device only receives the DCI in the first format;

[0299] a third transmission direction state, configured to indicate that the DCI size of the first format is aligned to the DCI size of the second format;

[0300] a fourth transmission direction state, used to indicate that the terminal device only receives DCI in the second format;

[0301] The default transmission direction state is used to indicate that the terminal device receives the DCI in the first format and the DCI in the second format.

[0302] The first format DCI is DCI for scheduling uplink transmission, and the second format DCI is DCI for scheduling downlink transmission. Specifically, the first format DCI is DCI for scheduling PUSCH, and the second format DCI is DCI for scheduling PDSCH. For example, the first format DCI is DCI format 0_1 ​​or DCI format 0_0, and the second format DCI is DCI format 1_0 or DCI format 1_1.

[0303] That is to say, the terminal device adjusts the blind detection of the first format DCI and the second format DCI according to the transmission direction information. Through the first information, the network device and the terminal device can agree on the transmission characteristics of the DCI. For example, when the service to be transmitted by the terminal device is mainly uplink service, the network device can indicate the first transmission direction state, and then the terminal device will adjust the size of the DCI scheduled for downlink transmission based on the DCI scheduled for uplink transmission, thereby giving priority to ensuring the reception accuracy of the first format DCI, simplifying the detection complexity, and improving communication efficiency. For another example, when the service to be transmitted by the terminal device is all uplink service, the network device can indicate the second transmission direction state, and the terminal device only receives the DCI in the first format, and does not need to receive the DCI in the second format. Accordingly, the network device can no longer send the DCI in the second format, thereby improving communication efficiency while improving the resource utilization of the communication system.

[0304] In one possible design, the alignment method includes zero padding and truncation. For example, the network device indicates a first transmission direction state to the terminal device, indicating that the size of the DCI in the second format is aligned to the size of the DCI in the first format. When the size of the DCI in the first format is larger than the size of the DCI in the second format, the DCI in the second format can be padded with zeros to make the size of the DCI in the second format equal to the size of the DCI in the first format; when the size of the DCI in the first format is smaller than the size of the DCI in the second format, the DCI in the second format can be truncated to make the size of the DCI in the second format equal to the size of the DCI in the first format. Zero padding and truncation can quickly achieve alignment of the two formats of DCI. The meanings of the first to fourth transmission direction states will be introduced in detail below.

[0305] The first transmission direction state refers to a state in which transmission scheduling is mainly performed through the first format DCI. Specifically, the network device adjusts the size of the second format DCI according to the size of the first format DCI, or in other words, aligns the size of the second format DCI to the size of the first format DCI. For example, when the size of the second format DCI is larger than the size of the first format DCI, the high Q bits of one or more indicator fields in the second format DCI are truncated, where Q is a positive integer, until the size of the second format DCI is the same as the size of the first format DCI, thereby avoiding filling redundant bits into the first format DCI and improving the transmission reliability of the first format DCI; when the size of the second format DCI is smaller than the size of the first format DCI, the network device fills P padding bits into the second format DCI, for example, filling with the symbol '0', until the size of the second format DCI is the same as the size of the first format DCI, thereby avoiding truncating the first format DCI and ensuring the scheduling accuracy of the first format DCI. Accordingly, the terminal device can detect the first and second formats of DCI according to the first transmission direction state, and the size of the first format DCI shall prevail during the detection. Compared with the existing technology, in USS, the alignment method between the DCI for scheduling uplink transmission and scheduling downlink transmission always aligns the smaller DCI with the larger DCI. For terminal devices with more uplink services, there are more DCIs for scheduling uplink transmission (i.e., the first format DCI). Therefore, the first format DCI can be used as the main format, and the size of the second format DCI can be aligned with the size of the first format DCI, thereby ensuring the transmission reliability and scheduling accuracy of the first format DCI, and thus ensuring the performance of the uplink transmission.

[0306] The second transmission direction state refers to a state in which scheduling is performed only through the first format DCI and the second format DCI is not sent or received. For example, when the services to be transmitted by the terminal device are all uplink services, the network device only sends the first format DCI. Accordingly, the terminal device only needs to detect the first format DCI and does not need to detect the second format DCI. Further, optionally, the first format DCI may not include a DCI format indication field, and the DCI format indication field is used to indicate the format of the DCI, that is, to indicate whether the format of the DCI is the first format or the second format; when the first information indicates the second transmission state, by not including the DCI format indication field in the first format DCI, or multiplexing the DCI format indication field to indicate other information, the payload quantity of the first DCI can be reduced and the transmission reliability of the DCI can be improved.

[0307] For example, the first transmission direction state or the second transmission direction state can be applied to industrial sensor networks. In this application scenario, there are a large number of industrial sensor terminals that are used to transmit the converted electrical signal information to network devices. Therefore, their to-be-transmitted services are mainly uplink transmission. Through the first transmission direction state, in the industrial sensor network, the terminal devices and network devices can prioritize the transmission reliability and scheduling accuracy of the first format DCI, ensuring the transmission quality of the uplink services, while reducing the complexity of detecting DCI and improving communication efficiency. Through the second transmission direction state, in the industrial sensor network, the terminal devices and network devices can only receive and send the first format DCI, saving the transmission resources of the second format DCI.

[0308] The third transmission direction state refers to a state in which transmission scheduling is mainly performed through the second format DCI. Specifically, the network device adjusts the size of the first format DCI according to the size of the second format DCI, or in other words, aligns the size of the first format DCI to the size of the second format DCI. Accordingly, the terminal device can detect the first format and the second format DCI according to the third transmission direction state, and the size of the second format DCI shall prevail during the detection. For details, please refer to the relevant description of the first transmission direction state above.

[0309] The fourth transmission direction state refers to a state in which scheduling is performed only through the second format DCI, and the first format DCI is not sent or received. For example, when the services to be transmitted by the terminal device are all downlink services, the network device only sends the second format DCI. Accordingly, the terminal device only needs to detect the second format DCI, and does not need to detect the first format DCI. Further, optionally, the second format DCI may not include a DCI format indication field, and the DCI format indication field is used to indicate the format of the DCI, that is, to indicate whether the format of the DCI is the first format or the second format; when the first information indicates the fourth transmission state, by not including the DCI format indication field in the second format DCI, or multiplexing the DCI format indication field to indicate other information, the payload quantity of the second DCI can be reduced, and the transmission reliability of the DCI can be improved.

[0310] The default transmission direction state can be used to instruct the terminal device to resume the detection mode and fall back to the transmission state before the adjustment through the first to fourth transmission direction states. It can be understood as being used to instruct the terminal device to no longer apply the first to fourth transmission direction state information indicated previously, and to resume the state applied by the prior art. For example, the network device sends first transmission direction information to the terminal device to indicate the second transmission direction state. The terminal device, according to its instruction, only receives DCI of the first format and does not receive DCI of the second format; the network device sends second transmission direction information to the terminal device to indicate the default transmission direction state. The terminal device no longer applies the second transmission direction state and resumes receiving DCI of both formats, detecting the first format DCI according to the definition of the first format DCI and detecting the second format DCI according to the definition of the second format DCI. That is, through the default transmission direction state, the network device can roll back the DCI transmission mode of the terminal device by changing the first information when the service characteristics change.

[0311] In one possible implementation, the transmission direction information is indicated by multiple bits or fields. For example, five bit values ​​are predefined to indicate the first to fourth transmission direction states and the default transmission direction state, and the transmission characteristics of the DCI in each state are defined. The terminal device can determine the corresponding transmission direction state information according to the bit value, and then receive the DCI according to the transmission characteristics. For another example, the transmission direction information is indicated by multiple states or values ​​of a field. For example, a 3-bit field is predefined. The 3-bit field can represent 8 states such as "000, 001, 010, ... 111", and 5 of the states are defined to indicate the first to fourth transmission direction states and the default transmission direction state. The terminal device can determine the corresponding transmission direction state information according to the value of the field, and then receive the DCI according to the transmission characteristics.

[0312] By indicating the transmission direction information through the first information, the DCI transmission method can be adjusted according to the directionality of the service to be transmitted by the terminal device, thereby improving communication efficiency and optimizing user experience.

[0313] The service load information includes at least one of the following:

[0314] a first load state, where the first load state may be used to indicate that the service load of the terminal device is heavy;

[0315] a second load state, where the second load state may be used to indicate that the service load of the terminal device is light;

[0316] The default load status is used to indicate that the service load of the terminal device is normal and no additional adjustment is required to the DCI transmission method.

[0317] It should be noted that the first load state and the second load state are determined based on the load information of the service to be transmitted by the terminal device, or in other words, the first load state and the second load state are used to indicate the time-frequency resources for DCI transmission, but it does not mean that the first load state and the second load state are used to indicate specific load information.

[0318] Optionally, corresponding to different service load information, the network device may transmit DCI using different time-frequency resources, specifically in the following situations:

[0319] When the terminal device is in the first load state, the terminal device only detects the first type of DCI, or detects the first type of DCI in the search space corresponding to the second type of DCI; and / or,

[0320] When the terminal device is in the second load state, the terminal device only detects the second type of DCI, or detects the second type of DCI in the search space corresponding to the first type of DCI; and / or,

[0321] When the terminal device is in a default load state, the terminal device detects the first type of DCI in the search space corresponding to the first type of DCI, and / or detects the second type of DCI in the search space corresponding to the second type of DCI.

[0322] It should be noted that the network device can configure the parameter information of the search space through high-layer signaling, including the DCI format detected in the search space. When the network device configures the terminal device to detect only the first type of DCI and not the second type of DCI, the default load state instructs the terminal device to detect the first type of DCI in the search space corresponding to the first type of DCI. That is, the default load state is used to indicate the restoration to the original transmission state, and the terminal device will not receive additional second type of DCI. For the first load state, it can be understood that when the terminal device has a large amount of business to be transmitted, the terminal device and the network device can detect the first type of DCI in the spare search space, and the spare search space is, for example, the search space of the second type of DCI, thereby improving the transmission rate and optimizing the user experience. For the second load state, it can be understood that when the terminal device has a small amount of business to be transmitted, the network device can reduce the frequency of blind detection of DCI by the terminal device by increasing the period of the search space, or avoid unnecessary detection of the first type of DCI, thereby saving communication resources and energy consumption of the terminal device.

[0323] Among them, the formats of the first type of DCI and the second type of DCI are different, the indication field included in the second type of DCI and the size of the indication field are predefined and do not depend on the high-level configuration specific to the user equipment. For example, the first type of DCI is non-fallback DCI, and the second type of DCI is fallback DCI.

[0324] When the amount of business to be transmitted by the terminal device is large, the network device can schedule as large a transmission block (TB) as possible each time it schedules the transmission of the terminal device. In order to schedule a larger TB, the network device may need to instruct the terminal device to use a higher modulation order, or need to instruct the terminal device to perform more accurate channel measurement and reporting, thereby consuming a large amount of spectrum resources and causing spectrum resource tension. In the communication method provided in the embodiment of the present application, when the amount of business to be transmitted by the terminal device is large, the network device and the terminal device can schedule PUSCH and / or PDSCH by transmitting non-fallback DCI. The non-fallback DCI can be used to indicate a higher modulation order, instruct the terminal device to measure and report the channel state, and instruct the terminal device to use a reference signal port for multi-user multiple-input multiple-output (MU-MIMO) transmission. That is, when the terminal device is in the first load state, the terminal device only detects the first type of DCI, or detects the first type of DCI in the search space corresponding to the second type of DCI. For example Figure 4AAs shown, the network device only schedules PUSCH and / or PDSCH through the first type of DCI, so the terminal device only needs to receive the first type of DCI. For another example, the network device transmits the first type of DCI in the SS corresponding to the second type of DCI (hereinafter referred to as the second SS), such as Figure 4B As shown, the first type of DCI is transmitted in both the SS corresponding to the first type of DCI (hereinafter referred to as the first SS) and the second SS. As a result, the network device can improve the DCI scheduling performance without reconfiguring the SS of the terminal device, and schedule the terminal device to transmit a larger TB in more PDCCH detection opportunities, thereby meeting the transmission requirements of the terminal device in an overloaded state, improving the user experience, and saving the signaling consumption of the network device for SS reconfiguration.

[0325] Correspondingly, when the amount of transmission to be transmitted by the terminal device is small, it can be scheduled through the second type of DCI, that is, when the terminal device is in the second load state, the terminal device only detects the second type of DCI, or detects the second type of DCI in the search space corresponding to the first type of DCI. For example, the network device only schedules PUSCH and / or PDSCH through the second type of DCI, then the terminal device only needs to receive the second type of DCI, saving the power consumption of DCI detection. For another example, the network device also sends the second type of DCI in the first SS. The indication field in the fallback DCI does not depend on the UE-specific high-level configuration. The second type of DCI has fewer bits and is more reliable in transmission. Therefore, it is used to schedule small TBs. While meeting the service transmission requirements, it can improve the transmission reliability of DCI and save the terminal device's blind detection consumption and the signaling overhead of the network device for SS reconfiguration. In another possible implementation, the network device can transmit the first type of DCI only in the first SS, that is, the terminal device only detects the first type of DCI. Through this transmission mode, even if the terminal device has a small amount of business to be transmitted, the network device can still flexibly schedule the terminal device through the first type of DCI, which is conducive to coping with sudden business and saves power consumption and the signaling overhead of SS reconfiguration of the network device.

[0326] The default load state is similar to the default transmission direction state, and is used to instruct the terminal device to resume detection mode and fall back to the transmission state before adjustment through the first load state and / or the second load state. It can be understood as being used to instruct the terminal device to no longer apply the first load state and / or the second load state information indicated previously, and to resume the state of application of the prior art. For example, the network device sends first load state information to the terminal device to indicate the first load state, and the terminal device only detects the first type of DCI according to its indication and does not receive the second type of DCI; the network device sends second load state information to the terminal device to indicate the default load state, and the terminal device no longer applies the first load state and resumes receiving the second type of DCI. In other words, through the default load state, the network device can roll back the DCI transmission mode of the terminal device by changing the first information when the service characteristics change.

[0327] When the first information includes transmission direction information and service load information, the network device and the terminal device simultaneously apply the instructions of the transmission direction information and the service load information to adjust the DCI transmission mode. Figure 4C A method for transmitting first information is shown, where the first information includes transmission direction information and service load information, wherein the transmission direction information is used to indicate the first transmission direction state, and the service load information is used to indicate the first load state. A network device sends a first type of DCI in a second SS and aligns the second format DCI with the first format DCI. Accordingly, a terminal device detects the first type of DCI in the second SS and receives the first format DCI and the second format DCI based on the size of the first format DCI. By combining the transmission direction information and service load information, the DCI transmission method can be better adjusted according to service feature information, thereby improving communication efficiency and reducing resource utilization.

[0328] In one possible implementation, the transmission direction information and the traffic load information may be jointly indicated. For example, the first information may include a 3-bit indication field, with the eight different states of the field representing the combination of the transmission direction indication information and the traffic load indication information, as shown in Table 1. It should be noted that Table 1 is only an example of a joint indication method; other combinations of transmission direction states and traffic load states are possible, and the present invention is not limited thereto.

[0329] Table 1 Example of first information indicating transmission direction information and traffic load information

[0330] state First Information state First Information 000 First transmission direction state+first load state 100 First transmission direction state + second load state 001 Second transmission direction state+first load state 101 The third transmission direction state + the second load state 010 The third transmission direction state+the first load state 110 Default transmission direction status + default load status 011 Fourth transmission direction state + first load state 111 Reserved state (not used)

[0331] Optional, such as Figure 5AAs shown, before step S301, step S3011 is also included: the terminal device reports transmission characteristic information to the network device, and the transmission characteristic information indicates the characteristics of the service to be transmitted by the terminal device, for example, it may include information on the transmission direction, and / or information on the service load. After the network device receives the transmission characteristic information from the terminal device, it can determine the characteristics of the service to be transmitted by the terminal device, and then determine the first information based on the service characteristics. Optionally, before step S3011, step S3010 is also included: the network device sends a transmission characteristic request to the terminal device, for instructing the terminal device to report the transmission characteristic information. Alternatively, S3010 is: the network device sends capability information to the terminal device, and the capability information is used to indicate that the network device supports adjusting the DCI sending mode according to the characteristics of the service to be transmitted by the terminal device. After the terminal device receives the capability information, step S3011 can be performed, wherein the capability information can be sent via a broadcast or multicast message, and then the network device can send the capability information to multiple terminal devices via one broadcast or multicast message, saving signaling overhead. Through steps S3010 and S3011, the network device and the terminal device can realize the interaction of the service feature information to be transmitted by the terminal device, so that the network device can more accurately optimize the DCI transmission method according to the service features, improve the user experience, and improve the communication efficiency of the communication system.

[0332] It should be noted that step S301 and steps S3010-S3011 can be sent multiple times. By sending the first information multiple times, the network device can change the transmission characteristic indication information according to the real-time business characteristics. When the business characteristics of the terminal device change, the network device can agree on a new DCI transmission method with the terminal device by changing the indication of the first information, thereby realizing flexible adjustment of the scheduling method according to the business characteristics and improving the communication efficiency of the terminal device.

[0333] Optional, such as Figure 5BAs shown, before step S302, step S3021 is also included: the terminal device determines the effective time of the first information. That is, step S302 is that the terminal device receives the DCI from the network device according to the first information within the effective time. When the effective time is exceeded, the terminal device can revert to the method of detecting DCI in the prior art, or the terminal device can also revert to the previous method of detecting DCI. Specifically, when the effective time indication information comes from the network device, or the effective time is predefined by the standard, or the effective time is preconfigured. Further optionally, before step S3021, step S3020 is also included: the network device sends the effective time indication information to the terminal device. The terminal device determines the effective time of the first information according to the effective time indication information, that is, the effective time is determined according to the effective time indication information from the network device. Wherein, the effective time information may include at least one of the effective period, the effective duration and the effective time initial offset. The period is the period of the effective time; the duration is the length of the effective time in a period; the initial offset is the offset between the starting moment of the effective time in a period and the starting moment of the period in which the effective time is located. It should be noted that the effective time indication information can also be carried in the same message as the first information, that is, step S3020 and step S301 are the same step. Through steps S3020 and S3021, the network device can configure the effective time of the first information for the terminal device, and the terminal device can apply the first information according to the effective time to avoid the situation where the service characteristics have changed, but the old transmission characteristic indication information is still in effect, thereby improving the configuration flexibility of the first information and optimizing the user experience. For the network device, by reasonably configuring the effective time indication information, there is no need to send additional signaling to instruct the terminal device to switch the transmission characteristic information, thereby reducing signaling consumption. Furthermore, when the network device sends at least one first information, the at least one first information may correspond to at least one effective time information. For example, the network device may configure effective time information for the terminal device through effective time indication information. The effective time information may correspond one-to-one with at least one first information. That is, the network device may configure different first information in different time periods, or one effective time information may correspond to multiple first information. That is, multiple first information may be effective within the same effective time. For example, the base station sends first information 1 to the user equipment (UE), and the effective time corresponding to the first information 1 is the first time period. The first information 1 indicates the first transmission direction state. That is, the base station instructs the UE to receive DCI according to the first transmission direction state within the first time period.For example, the base station also sends the first information 2 corresponding to the second time period to the UE, and the first information 2 indicates the first load state. Then, the UE will receive DCI according to the first transmission direction state in the first time period, and receive DCI according to the first load state in the second time period. The network device can simultaneously indicate the transmission direction information and / or service load information of a specific time period, and can also indicate multiple different time periods and service transmission characteristic information in each time period. Through different configuration methods of the effective time information, the transmission method can be adjusted more flexibly according to the service characteristics of the terminal device to optimize the user experience.

[0334] The above describes the content of the first information and the application of the network device and the terminal device. Next, the sending method of the first information is described in detail. Specifically, the first information can be carried in a radio resource control RRC message or in a media access control element MAC CE.

[0335] In a first possible implementation, the network device may configure the first information for the terminal device through user-specific high-layer signaling, for example, the first information is carried in an RRC message. Specifically, the network device sends an RRC message to the terminal device, and the RRC message carries at least one first information. Optionally, the at least one first information may correspond to at least one effective time information. For the configuration of the effective time information, please refer to the relevant instructions in step S3020 above. When the network device sends effective time indication information to the terminal device, the at least one effective time indication information may be carried in the same message as the at least one first information, or may be carried in a different message. Accordingly, the terminal device receives the RRC message from the network device and determines the first information.

[0336] In a second possible implementation, the network device may transmit the first information to the terminal device via a media access control element (MAC CE). Specifically, the network device sends a MAC CE to the terminal device, which includes the first information 1. It can also be understood that the network device activates the first information via the MAC CE. After receiving the MAC CE, the terminal device determines the first information 1 and receives the DCI according to the service transmission characteristics indicated by the first information 1. There are two ways for the terminal device to determine whether the first information 1 is invalid. In the first case, the network device also configures the effective time information corresponding to the first information 1 for the terminal device. The configuration method can refer to the relevant instructions in step S3020 above. Specifically, the MAC CE can be carried on the PDSCH. For example, when the first information indicates the second transmission direction state, the terminal device no longer receives the DCI scheduling the PDSCH after applying the first information. In this case, the terminal device can be instructed to stop applying the first information by configuring the effective time for the second information. In the second case, the network device may send a new MAC CE to the terminal device, which carries new first information 2 and is used to instruct the terminal device to receive DCI according to the new service transmission characteristics. Alternatively, the new MAC CE is used to instruct the terminal device to stop applying the first information 1. After receiving the DCI, the terminal device can restore to the transmission state before applying the first information 1. This can be understood as the new MAC CE being used to instruct the terminal device to deactivate the first information 1. Compared with reconfiguring the first information through high-layer signaling, the MAC CE has higher transmission efficiency and does not need to be configured with effective time information. The first information can be dynamically activated and deactivated only through the MAC CE, thereby improving the flexibility of the communication system.

[0337] In a third possible implementation, the network device may configure at least one first information for the terminal device through high-layer signaling, such as first information 1 and first information 2, and then activate or deactivate one of the at least one first information through MAC CE. For example, the base station sends an RRC message to the UE, which carries N first information, including first information 1, first information 2, ... first information N. The base station sends a MAC CE to the UE to indicate the activation of the first information 1, then the UE receives DCI according to the transmission characteristics indicated by the activated first information 1, and the base station may send a MAC CE to the UE to indicate that the activated first information is updated from the first information 1 to the first information 2, then the UE receives DCI according to the transmission characteristics indicated by the newly activated first information 2, and then the base station sends a MAC CE to the UE to indicate the deactivation of the first information 2, then the UE stops applying the first information. Through the combined application of high-layer signaling and MAC CE, the network device can configure the service feature information only once, and then flexibly enable the first information through MAC CE, thereby achieving high-efficiency and low-consumption transmission control.

[0338] In a fourth possible implementation, the network device may transmit the first information to the terminal device via a first DCI. Specifically, the first DCI is carried on the PDCCH. The first DCI used to carry the first information may be a DCI for scheduling the PDSCH or PUSCH, or a UE-specific DCI, or a DCI used to indicate other information, such as DCI format 2_6 indicating UE energy-saving information, or a DCI dedicated to indicating the first information. Transmitting the first information via the first DCI may also be understood as activating the first information via the first DCI. For example, the network device sends the first DCI to the terminal device, which includes the first information 1. After receiving the first DCI, the terminal device determines the first information 1 and receives subsequent DCIs based on the service transmission characteristics indicated by the first information 1. There are two ways for the terminal device to determine whether the first information 1 is invalid: configuring the corresponding effective time information, or instructing the terminal device to stop applying the first information via a second DCI. For detailed descriptions of these two methods, please refer to the application method of MAC CE in the "second possible implementation" above. Compared with reconfiguring the first information via high-layer signaling or MAC CE, the first DCI has the highest transmission efficiency, the fastest effectiveness, and the best flexibility, thereby improving the communication efficiency of the communication system.

[0339] It can be understood that the embodiments of the present application can realize flexible transmission of the first information through the above four possible implementations, and for each activation, update and deactivation of the first information, the first information can include at least one of the transmission direction information and the service load information, thereby realizing flexible and dynamic control of the DCI transmission mode according to the service characteristics, improving the communication efficiency and resource utilization of the communication system, and optimizing the user experience.

[0340] For step S303: the terminal device uses the SPS resources for transmission according to the first information. The first information is used to indicate the transmission direction state and / or the service load state. It can be understood that the first information not only indicates the method for the terminal device to detect the DCI, but also indicates the use or release of the SPS resources by the terminal device, or the terminal device determines the use method of the SPS resources according to the transmission direction state and / or service load state indicated by the first information.

[0341] Specifically, Table 2 is an example of the first information indicating that the terminal device detects the DCI method and the SPS resource usage method. When the first information indicates that the service to be transmitted by the terminal device is in the first transmission direction state (more uplink services) or the second transmission direction state (only uplink services), the first information not only instructs the terminal device to align the second format DCI size to the size of the first format DCI or only detect the first format DCI when detecting DCI, but also instructs the terminal device to release DL SPS resources. Similarly, when the first information indicates that the service to be transmitted by the terminal device is in the third transmission direction state (more downlink services) or the fourth transmission direction state (only downlink services), the first information not only instructs the terminal device to align the first format DCI size to the size of the second format DCI or only detect the second format DCI when detecting DCI, but also instructs the terminal device to release UL configured grant resources. Table 3 is another example of the first information indicating that the terminal device detects the DCI mode and the SPS resource usage mode. When the first information indicates that the service load information of the terminal device is the first load state (heavy load state), the first information not only indicates how the terminal device detects the DCI, but also instructs the terminal device to activate the DL SPS resources and UL configured grant resources. When the first information indicates that the service load information of the terminal device is the second load state (light load state), the first information not only indicates that the terminal device only detects the second type of DCI, or detects the second type of DCI in the search space corresponding to the first type of DCI, but also instructs the terminal device to release / deactivate the DL SPS resources and UL configured grant resources. It should be noted that when the first information indicates the transmission direction state information and the service load information, the use of the DL SPS resources or the UL configured grant resources should meet the instructions in Table 2 and Table 3 at the same time, that is, when the transmission direction state and the service load state both indicate that the SPS resources can be used, the terminal device can use the SPS resources. For example, when the first information indicates a first transmission direction state and a first load state, the terminal device will deactivate DL SPS resources and may use / activate UL configured grant resources; when the first information indicates a third transmission direction state and a second load state, the terminal device will deactivate DL SPS resources and UL configured grant resources. By indicating the use of SPS resources through the first information, the signaling overhead of the network device instructing the terminal device to release resources through a DCI or RRC reconfiguration message can be saved, thereby reducing system consumption.

[0342] Table 2: Example of first information indicating DCI transmission and SPS resource usage

[0343]

[0344] Table 3: Example of first information indicating DCI transmission and SPS resource usage

[0345]

[0346] It can be understood that the network device can simultaneously indicate the transmission direction information, service load information and SPS resource usage information through the first information, thereby maximizing the utilization rate of the indication message, and improving the communication efficiency of the communication system while adjusting the transmission mode according to the characteristics of the service to be transmitted by the terminal device. For example, as shown in Table 1, the first information can be a 3-bit indication field, and the 8 different states of the field can respectively represent the combination of transmission direction indication information and service load indication information. At the same time, the SPS resource application method can be determined in combination with Table 2 and Table 3. In one possible implementation, when the SPS resource is valid in the SPS resource application mode corresponding to the transmission direction indication information and is also valid in the SPS resource application mode corresponding to the service load indication information, it can be determined that this type of SPS resource is valid. For example, when the indication field is 000, the SPS resource application method corresponding to the first transmission direction state is that the DL SPS resource is invalid and the UL configured grant resource is valid, and the SPS resource application method corresponding to the first load state is that both the DL SPS resource and the UL configured grant resource are valid. Therefore, it can be determined that when the indication field is 000, the SPS resource application method is that only the UL configured grant resource is valid. Through the communication method provided in the embodiment of the present application, the network device can indicate the transmission direction indication information, service load indication information and SPS resource application method through a field, so as to flexibly adjust the communication method according to the characteristics of the service to be transmitted by the terminal device, save signaling overhead and improve communication efficiency.

[0347] In one possible implementation, the standard predefines the correspondence between the characteristics of the transmission service and the DCI transmission mode and the SPS resource usage mode, such as shown in Table 2 and Table 3. Then the first information only needs to indicate the characteristics of the service to be transmitted (transmission direction information and / or service load information). The terminal device can determine the DCI transmission mode and the SPS resource usage mode based on the first information, which can explain the transmission consumption of the control signaling and improve communication efficiency. In another possible implementation, the DCI transmission mode and the SPS resource usage mode are indicated separately. It can be understood that the first information is only used to indicate the DCI transmission mode, and the SPS resource usage mode is indicated by the second information. For specific implementation, please refer to the relevant instructions in Example 2.

[0348] Through the communication method provided by this application, the network device can indicate the characteristics of the service to be transmitted through the first information, including transmission direction information and / or service load information, wherein the first information can also be used to indicate the DCI transmission mode and the SPS resource usage mode; accordingly, after receiving the first information, the terminal device detects the DCI according to the first information, and / or uses the SPS resources according to the first information. Through a piece of first information, the network device and the terminal device can exchange the DCI transmission mode and the SPS resource usage mode, and then adjust the communication mode according to the service transmission characteristics, while optimizing the user experience and improving the resource utilization and communication efficiency of the communication system.

[0349] Example 2

[0350] In the previous embodiment, it was explained that the network device can indicate the method of transmitting DCI through the first information, wherein the first information includes transmission direction information and / or service load information. At the same time, the first information can also be used to indicate the SPS resource usage method, as described above. The DCI transmission method and the SPS resource usage method can also be indicated separately, thereby more flexibly indicating the communication transmission of the terminal device. The communication method provided in this embodiment will illustrate how to indicate the usage method of SPS resources through the second information. It should be noted that Example 2 can be applied independently or in combination with Example 1. For ease of introduction, in the following, the method is performed by a network device and a terminal device as an example. Because this embodiment is based on the application Figure 2 The network architecture shown in the figure is taken as an example, therefore, the network devices described below can be Figure 2 The network devices in the network architecture shown in the figure, the terminal devices described below can be Figure 2 The terminal device in the network architecture shown in FIG. Figure 6 The communication method provided in the embodiment of the present application includes steps S601 and S602:

[0351] S601. The network device sends second information to the terminal device, where the second information is used to indicate how SPS resources are used. Correspondingly, the terminal device receives the second information from the network device.

[0352] S602. The terminal device uses SPS resources for transmission according to the second information.

[0353] SPS resources are periodic resources. When SPS resources are valid, terminal devices only need to use SPS resources for transmission according to the configuration of high-level signaling, without the need for DCI scheduling. Due to the scheduling-free feature of SPS resources, SPS transmission can be used for low-latency transmission or for long-term, continuous transmission, thereby improving communication efficiency. Network equipment can determine whether it is necessary to instruct the terminal device to release a certain type of SPS resource based on the characteristics of the service to be transmitted by the terminal device, or to release all SPS resources and make more resources available to other terminal devices, thereby achieving flexible scheduling of the communication system.

[0354] For step S601, the network device sends second information to the terminal device, where the second information is used to indicate how the SPS resources are used; correspondingly, the terminal device receives the second information from the network device.

[0355] The second information is used to indicate how the terminal device uses the SPS resources. Specifically, the second information may indicate at least one of the following:

[0356] The first indication information is used to instruct the terminal device to release, deactivate or not apply the DL SPS resource;

[0357] The second indication information is used to instruct the terminal device to release, deactivate or not apply the UL configuredgrant resource;

[0358] The third indication information is used to instruct the terminal device to release, deactivate or not apply the DL SPS resources and UL configured grant resources;

[0359] The default indication information is used to instruct the terminal device to activate or apply DL SPS resources and UL configured grant resources.

[0360] Optionally, the second information is determined based on the characteristics of the service to be transmitted by the terminal device, wherein the “release or not apply” can be understood as deactivating or releasing resources. Since SPS resources are periodic transmission resources configured by the network device for the terminal device, when the network device determines that data will not be transmitted through the DL SPS resources in the next period of time, the terminal device does not need to receive downlink data through the DL SPS resources, and therefore the DL SPS resources can be released to save transmission resources of the downlink control channel. Releasing resources can also be understood as not applying the resources for transmission. Similarly, the network device can instruct the terminal device to release or deactivate the UL configured grant resources based on the characteristics of the service to be transmitted by the terminal device, so as to improve the overall resource utilization of the communication system.

[0361] Optionally, before step S601, step S6011 is also included: the terminal device sends transmission characteristic information to the network device, and the transmission characteristic information is used to indicate the characteristics of the service to be transmitted by the terminal device. For example, further, the network device can determine the second information based on the transmission characteristic information from the terminal device. Optionally, before step S6011, step S6010 is also included: the network device sends a transmission characteristic request to the terminal device, used to instruct the terminal device to report the transmission characteristic information. Alternatively, S6010 is: the network device sends capability information to the terminal device, and the capability information is used to indicate that the network device supports adjusting the usage of SPS resources according to the characteristics of the service to be transmitted by the terminal device. After receiving the capability information, the terminal device can proceed to step S6011. For the specific implementation of steps S6010 and S6011, please refer to the relevant instructions in steps S3010 and S3011. Through steps S6010 and S6011, the network device and the terminal device can realize the interaction of the characteristic information of the service to be transmitted by the terminal device, so that the network device can more accurately optimize the usage of SPS resources according to the service characteristics, thereby improving the resource utilization of the communication system.

[0362] It should be noted that step S601 and steps S6010-S6011 can be sent multiple times. By sending the second information multiple times, the network device can change the indication information for using SPS resources according to real-time business characteristics, thereby realizing flexible adjustment of the scheduling method according to business characteristics and improving the communication efficiency of the terminal device.

[0363] Optionally, before step S602, step S6021 is also included: the terminal device determines the effective time of the second information. That is, step S602 is for the terminal device to determine the use of SPS transmission resources according to the second information within the effective time. When the effective time is exceeded, the terminal device can resume using the original SPS resources, or the terminal device can also resume to the SPS usage state indicated by the network device last time. Specifically, when the effective time indication information comes from the network device, or the effective time is predefined by the standard, or the effective time is preconfigured. Further optionally, before step S6021, step S6020 is also included: the network device sends the effective time indication information to the terminal device. The correspondence between the effective time indication information and the second information can be one-to-one or one-to-many. For the specific implementation of step S6021 and step S6020, please refer to the relevant instructions in step S3021 and step S3020. For the sake of brevity, they will not be repeated here.

[0364] In a possible implementation, the network device may indicate the first information and the second information at the same time. Specifically, the network device sends the first information and the second information to the terminal device, the first information is used to indicate the DCI transmission mode, and the second information is used to indicate the terminal device's use mode for SPS resources. The terminal device receives DCI according to the first information and uses SPS resources according to the second information. For example, when the base station determines that the UE's to-be-transmitted services are all uplink services, the base station may send the first information to the UE to indicate the second transmission direction state, and send the second information to instruct the terminal device to release, deactivate or not apply DL SPS resources. After receiving the first information and the second information, the UE may release the DL SPS resources and only receive the DCI in the first format, that is, the UE no longer needs to detect the second format DCI, and no longer occupies the DL SPS resources, freeing up more resources for other terminal devices. Through the communication method provided in this application, the network device can flexibly instruct the terminal device how to apply SPS resources according to business needs. The network device may send the first information and the second information to the terminal device, respectively used to instruct the terminal device how to perform DCI detection and use SPS resources. It should be noted that the first information and the second information may be carried in the same message or different messages.

[0365] In one possible design, the effective time of the first information and the effective time of the second information are the same. Furthermore, the effective time of the first information and the effective time of the second information can be indicated by the same effective time indication information. Specifically, the network device sends a first message to the terminal device, the first message includes the first information and the second information, and the first effective time indication information, the first effective time indication information is used to indicate the effective time of the first information and the second information. After receiving the first message, the terminal device determines the first effective time according to the first effective time indication information, and within the first effective time, receives DCI according to the first information and uses SPS resources according to the second information.

[0366] The second information may be carried in a radio resource control RRC message or in a media access control element MAC CE. Regarding the sending method of the second information, reference may be made to the four possible implementations of the first information sending method in embodiment 1, which will not be repeated here.

[0367] According to the communication method provided in the embodiment of the present application, the network device can improve resource utilization by instructing the terminal device to use SPS resources through the second information; the network device can send the first information and the second information to the terminal device according to the characteristics to be transmitted of the terminal device. Furthermore, the effective time of the first information and / or the second information can be configured through the effective time indication information, so as to realize flexible control of the communication transmission of the terminal device according to the service characteristics, optimize the user experience and improve the resource utilization of the communication system.

[0368] Figure 7 This is a schematic block diagram of a communication device 700 provided in an embodiment of the present application. Exemplarily, the communication device 700 is, for example, a network device 700.

[0369] The network device 700 includes a processing module 710 and a transceiver module 720. Exemplarily, the network device 700 may be a network device, or a chip used in a network device, or other combined devices, components, etc. having the functions of the aforementioned network device. When the network device 700 is a network device, the transceiver module 720 may be a transceiver, which may include an antenna and a radio frequency circuit, etc., and the processing module 710 may be a processor, such as a baseband processor, which may include one or more central processing units (CPUs). When the network device 700 is a component having the functions of the aforementioned network device, the transceiver module 720 may be a radio frequency unit, and the processing module 710 may be a processor, such as a baseband processor. When the network device 700 is a chip system, the transceiver module 720 may be the input and output interface of the chip (such as a baseband chip), and the processing module 710 may be the processor of the chip system, which may include one or more central processing units. It should be understood that the processing module 710 in the embodiments of the present application may be implemented by a processor or processor-related circuit components, and the transceiver module 720 may be implemented by a transceiver or transceiver-related circuit components.

[0370] For example, the processing module 710 can be used to perform Figure 3 or Figure 6 All operations except transceiver operations performed by the network device in the illustrated embodiment, and / or other processes used to support the technology described herein. Figure 3 or Figure 6 All receiving operations performed by the network device in the illustrated embodiment, such as S301 - S302 and S601 - S602 , and / or other processes for supporting the technology described herein.

[0371] In addition, the transceiver module 720 may be a functional module that can perform both sending and receiving operations. For example, the transceiver module 720 may be used to perform Figure 3In the embodiment shown, all sending operations and receiving operations performed by the network device, for example, when performing a sending operation, the transceiver module 720 can be considered as a sending module, and when performing a receiving operation, the transceiver module 720 can be considered as a receiving module; or, the transceiver module 720 can also be two functional modules, and the transceiver module 720 can be regarded as a general term for the two functional modules, which are a sending module and a receiving module respectively. The sending module is used to complete the sending operation, for example, the sending module can be used to perform Figure 3 or Figure 6 In any of the embodiments shown, the receiving module is used to perform all the sending operations performed by the network device, for example, the receiving module can be used to perform Figure 3 or Figure 6 The illustrated embodiment shows all receive operations performed by the network device.

[0372] For example, the transceiver module 720 is used to send first information and / or second information, where the first information is used to indicate transmission direction information and / or service load information, and the second information is used to indicate how the SPS resources are used.

[0373] The transceiver module 720 can also be used to send DCI to the terminal device.

[0374] As an optional implementation manner, the transmission direction information indicates at least one of the following:

[0375] a first transmission direction state, used to indicate that the DCI size of the second format is aligned to the DCI size of the first format;

[0376] A second transmission direction state, used to indicate that the terminal device only receives the DCI in the first format;

[0377] a third transmission direction state, configured to indicate that the DCI size of the first format is aligned to the DCI size of the second format;

[0378] a fourth transmission direction state, used to indicate that the terminal device only receives DCI in the second format;

[0379] a default transmission direction state, used to instruct the terminal device to receive the DCI in the first format and the DCI in the second format;

[0380] The DCI in the first format is DCI for scheduling uplink transmission, and the DCI in the second format is DCI for scheduling downlink transmission.

[0381] As an optional implementation, the alignment method includes zero padding and truncation.

[0382] As an optional implementation manner, the traffic load information indicates at least one of the following:

[0383] A first load state, used to indicate that the service load of the terminal device is heavy;

[0384] The second load state is used to indicate that the service load of the terminal device is light.

[0385] As an optional implementation manner, when the first information indicates the second transmission direction state, the DCI in the first format does not include a DCI format indication field; and / or

[0386] When the first information indicates the fourth transmission direction state, the DCI in the second format does not include a DCI format indication field.

[0387] As an optional implementation manner, the traffic load information indicates at least one of the following:

[0388] A first load state, used to indicate that the service load of the terminal device is heavy;

[0389] The second load state is used to indicate that the service load of the terminal device is light.

[0390] As an optional implementation,

[0391] When the first information indicates the first load state, the network device sends only the first type of DCI, or sends the first type of DCI in the search space corresponding to the second type of DCI; and / or,

[0392] When the first information indicates the second load state, the network device sends only the second type of DCI, or sends the second type of DCI in the search space corresponding to the first type of DCI; and / or,

[0393] When the first information indicates a default load state, the network device sends the first type of DCI in the search space corresponding to the first type of DCI, and / or sends the second type of DCI in the search space corresponding to the second type of DCI;

[0394] The formats of the first type of DCI and the second type of DCI are different, and the indication field included in the second type of DCI and the size of the indication field are predefined.

[0395] As an optional implementation, the transceiver module 720 is further configured to send valid time indication information to the terminal device. The valid time indication information may indicate at least one of a period, a duration, and an initial offset, wherein:

[0396] The period is the period of the effective time;

[0397] The duration is the length of time during which the effective time is in one cycle;

[0398] The initial offset is the offset between the starting time of the effective time in a cycle and the starting time of the cycle in which the effective time belongs.

[0399] As an optional implementation manner, the first information is carried in a radio resource control RRC message, or carried in a media access control control element MAC CE.

[0400] Figure 8 This is a schematic block diagram of a communication device 800 provided in an embodiment of the present application. Exemplarily, the communication device 800 is, for example, a terminal device 800.

[0401] The terminal device 800 includes a processing module 810 and a transceiver module 820. Exemplarily, the terminal device 800 may be a network device, or a chip used in a terminal device, or other combined devices, components, etc. having the above-mentioned terminal device functions. When the terminal device 800 is a terminal device, the transceiver module 820 may be a transceiver, which may include an antenna and a radio frequency circuit, etc., and the processing module 810 may be a processor, such as a baseband processor, which may include one or more central processing units (CPUs). When the terminal device 800 is a component having the above-mentioned terminal device functions, the transceiver module 820 may be a radio frequency unit, and the processing module 810 may be a processor, such as a baseband processor. When the terminal device 800 is a chip system, the transceiver module 820 may be the input and output interface of the chip (such as a baseband chip), and the processing module 810 may be the processor of the chip system, which may include one or more central processing units. It should be understood that the processing module 810 in the embodiments of the present application may be implemented by a processor or processor-related circuit components, and the transceiver module 820 may be implemented by a transceiver or transceiver-related circuit components.

[0402] For example, the processing module 810 can be used to perform Figure 3 or Figure 6 In the embodiment shown, all operations performed by the terminal device except the transceiver operation, such as S602, and / or other processes used to support the technology described herein. The transceiver module 820 can be used to perform Figure 3 or Figure 6 All receiving operations performed by the terminal device in the illustrated embodiment, such as S301-S302, S601 and / or other processes for supporting the technology described herein.

[0403] In addition, the transceiver module 820 may be a functional module that can perform both sending and receiving operations. For example, the transceiver module 820 may be used to perform Figure 3 or Figure 6 In the embodiment shown, all sending operations and receiving operations performed by the terminal device, for example, when performing a sending operation, the transceiver module 820 can be considered as a sending module, and when performing a receiving operation, the transceiver module 820 can be considered as a receiving module; or, the transceiver module 820 can also be two functional modules, and the transceiver module 820 can be regarded as a general term for the two functional modules, which are a sending module and a receiving module respectively. The sending module is used to complete the sending operation, for example, the sending module can be used to perform Figure 3 or Figure 6 In any of the embodiments shown, the receiving module is used to perform all the sending operations performed by the terminal device, for example, the receiving module can be used to perform Figure 3 or Figure 6 The embodiment shown shows all receiving operations performed by the terminal device.

[0404] For example, the transceiver module 820 is configured to receive first information and / or second information, where the first information is used to indicate transmission direction information and / or service load information, and the second information is used to indicate a usage mode of the SPS resource;

[0405] The processing module 810 is configured to detect DCI through the transceiver module 820 .

[0406] As an optional implementation manner, the transmission direction information indicates at least one of the following:

[0407] a first transmission direction state, used to indicate that the DCI size of the second format is aligned to the DCI size of the first format;

[0408] A second transmission direction state, used to indicate that the terminal device only receives the DCI in the first format;

[0409] a third transmission direction state, configured to indicate that the DCI size of the first format is aligned to the DCI size of the second format;

[0410] a fourth transmission direction state, used to indicate that the terminal device only receives DCI in the second format;

[0411] a default transmission direction state, used to instruct the terminal device to receive the DCI in the first format and the DCI in the second format;

[0412] The DCI in the first format is DCI for scheduling uplink transmission, and the DCI in the second format is DCI for scheduling downlink transmission.

[0413] As an optional implementation, the alignment method includes zero padding and truncation.

[0414] As an optional implementation manner, the traffic load information indicates at least one of the following:

[0415] A first load state, used to indicate that the service load of the terminal device is heavy;

[0416] The second load state is used to indicate that the service load of the terminal device is light.

[0417] As an optional implementation manner, when the first information indicates the second transmission direction state, the DCI in the first format does not include a DCI format indication field; and / or

[0418] When the first information indicates the fourth transmission direction state, the DCI in the second format does not include a DCI format indication field.

[0419] As an optional implementation manner, the traffic load information indicates at least one of the following:

[0420] A first load state, used to indicate that the service load of the terminal device is heavy;

[0421] The second load state is used to indicate that the service load of the terminal device is light.

[0422] As an optional implementation manner, when the terminal device is in the first load state, the terminal device only detects the first type of DCI, or detects the first type of DCI in the search space corresponding to the second type of DCI; and / or,

[0423] When the terminal device is in the second load state, the terminal device only detects the second type of DCI, or detects the second type of DCI in the search space corresponding to the first type of DCI; and / or,

[0424] When the terminal device is in a default load state, the terminal device detects the first type of DCI in a search space corresponding to the first type of DCI, and / or detects the second type of DCI in a search space corresponding to the second type of DCI;

[0425] The formats of the first type of DCI and the second type of DCI are different, and the indication field included in the second type of DCI and the size of the indication field are predefined.

[0426] As an optional implementation, the transceiver module 820 is further configured to receive valid time indication information from the network device. The valid time indication information may indicate at least one of a period, a duration, and an initial offset, wherein:

[0427] The period is the period of the effective time;

[0428] The duration is the length of time during which the effective time is in one cycle;

[0429] The initial offset is the offset between the starting time of the effective time in a cycle and the starting time of the cycle in which the effective time belongs.

[0430] As an optional implementation manner, the first information is carried in a radio resource control RRC message, or in a media access control control element MAC CE.

[0431] The present application also provides a communication device, which can be a terminal device or a circuit, and can be used to execute the actions executed by the terminal device in the above method embodiment.

[0432] When the communication device is a terminal device, Figure 9 The following is a simplified schematic diagram of the terminal device. Figure 9 In this article, the terminal device is a mobile phone. Figure 9 As shown, the terminal device includes a processor, a memory, a radio frequency circuit, an antenna, and input and output devices. The processor is mainly used to process communication protocols and communication data, as well as to control the terminal device, execute software programs, process software program data, etc. The memory is mainly used to store software programs and data. The radio frequency circuit is mainly used to convert baseband signals into radio frequency signals and process radio frequency signals. The antenna is mainly used to transmit and receive radio frequency signals in the form of electromagnetic waves. Input and output devices, such as touch screens, displays, keyboards, etc., are mainly used to receive data input by users and output data to users. It should be noted that some types of terminal devices may not have input and output devices.

[0433] When data needs to be sent, the processor performs baseband processing on the data to be sent and outputs the baseband signal to the RF circuit. The RF circuit performs RF processing on the baseband signal and then transmits the RF signal to the outside in the form of electromagnetic waves through the antenna. When data is sent to the terminal device, the RF circuit receives the RF signal through the antenna, converts the RF signal into a baseband signal, and outputs the baseband signal to the processor. The processor converts the baseband signal into data and processes the data. For the sake of explanation, Figure 9Only one memory and processor are shown. In actual terminal device products, one or more processors and one or more memories may exist. Memory may also be referred to as a storage medium or storage device. The memory may be provided independently of the processor or integrated with the processor, and this is not limited in the embodiments of the present application.

[0434] In the embodiment of the present application, the antenna and radio frequency circuit with transceiver functions can be regarded as the transceiver unit of the terminal device (the transceiver unit can be a functional unit that can realize the sending function and the receiving function; or the transceiver unit can also include two functional units, namely a receiving unit that can realize the receiving function and a sending unit that can realize the sending function), and the processor with processing function can be regarded as the processing unit of the terminal device. Figure 9 As shown, the terminal device includes a transceiver unit 910 and a processing unit 920. The transceiver unit may also be referred to as a transceiver, transceiver, or transceiver device. The processing unit may also be referred to as a processor, processing board, processing module, or processing device. Optionally, the device in the transceiver unit 910 that implements the receiving function may be considered a receiving unit, and the device in the transceiver unit 910 that implements the transmitting function may be considered a transmitting unit. That is, the transceiver unit 910 includes a receiving unit and a transmitting unit. The transceiver unit may also be referred to as a transceiver, transceiver, or transceiver circuit. The receiving unit may also be referred to as a receiver, receiver, or receiving circuit. The transmitting unit may also be referred to as a transmitter, transmitter, or transmitting circuit.

[0435] It should be understood that the transceiver unit 910 is used to perform sending and receiving operations on the terminal device side in the above method embodiment, and the processing unit 920 is used to perform other operations on the terminal device except the sending and receiving operations in the above method embodiment.

[0436] For example, in one implementation, the processing unit 920 may be configured to execute Figure 3 or Figure 6 In the embodiment shown, all operations except the transceiver operation performed by the terminal device, such as S602, and / or other processes used to support the technology described herein. The transceiver unit 910 can be used to perform Figure 3 or Figure 6 All receiving operations performed by the terminal device in the illustrated embodiment, such as S301 to S302 and S601, and / or other processes for supporting the technology described herein.

[0437] When the communication device is a chip-type device or circuit, the device may include a transceiver unit and a processing unit, wherein the transceiver unit may be an input / output circuit and / or a communication interface; and the processing unit may be an integrated processor, microprocessor, or integrated circuit.

[0438] When the communication device in this embodiment is a terminal device, you can refer to Figure 10 As an example, the device can perform similar Figure 8 The function of the processing module 810 is Figure 10 The device includes a processor 1010, a sending data processor 1020, and a receiving data processor 1030. The processing module 810 in the above embodiment can be Figure 10 The processor 1010 in the embodiment can be used to perform the corresponding functions; the transceiver module 820 in the embodiment can be used to perform the corresponding functions; Figure 10 The sending data processor 1020 and / or receiving data processor 1030 in the embodiment of the present invention complete the corresponding functions. Figure 10 A channel encoder and a channel decoder are shown in FIG. 1 , but it can be understood that these modules do not constitute a limitative description of this embodiment and are merely illustrative.

[0439] Figure 11 Another form of this embodiment is shown. The processing device 1100 includes modules such as a modulation subsystem, a central processing subsystem, and a peripheral subsystem. The communication device in this embodiment can serve as the modulation subsystem therein. Specifically, the modulation subsystem may include a processor 1103 and an interface 1104. The processor 1103 performs the functions of the above-mentioned processing module 810, and the interface 1104 performs the functions of the above-mentioned transceiver module 820. As another variation, the modulation subsystem includes a memory 1106, a processor 1103, and a program stored on the memory 1106 and executable on the processor. When the processor 1103 executes the program, the method on the terminal device side in the above-mentioned method embodiment is implemented. It should be noted that the memory 1106 may be non-volatile or volatile, and may be located inside the modulation subsystem or in the processing device 1100, as long as the memory 1106 can be connected to the processor 1103.

[0440] When the device in the embodiment of the present application is a network device, the device can be as follows Figure 12 As shown. The device 1200 includes one or more radio frequency units, such as a remote radio unit (RRU) 1210 and one or more baseband units (BBU) (also called digital units, DU) 1220. The RRU 1210 can be called a transceiver module, which can include a sending module and a receiving module, or the transceiver module can be a module that can realize sending and receiving functions. The transceiver module can be connected to Figure 71210 corresponds to the transceiver module 720 in the . Optionally, the transceiver module can also be called a transceiver, a transceiver circuit, or a transceiver, etc., and can include at least one antenna 1211 and a radio frequency unit 1212. The RRU 1210 portion is mainly used for transmitting and receiving radio frequency signals and converting radio frequency signals into baseband signals, for example, for sending indication information to terminal devices. The BBU 1210 portion is mainly used for baseband processing, controlling the base station, etc. The RRU 1210 and BBU 1220 can be physically arranged together or physically separated, that is, a distributed base station.

[0441] The BBU 1220 is the control center of the base station, which can also be called a processing module. Figure 7 The processing module 710 in the embodiment corresponds to the baseband processing module 710, which is mainly used to perform baseband processing functions such as channel coding, multiplexing, modulation, spread spectrum, etc. For example, the BBU (processing module) can be used to control the base station to execute the operation process of the network device in the above method embodiment, for example, to generate the above indication information.

[0442] In one example, the BBU 1220 may be composed of one or more single boards, and the multiple single boards may jointly support a wireless access network with a single access standard (such as an LTE network), or may separately support wireless access networks with different access standards (such as an LTE network, a 5G network, or other networks). The BBU 1220 also includes a memory 1221 and a processor 1222. The memory 1221 is used to store necessary instructions and data. The processor 1222 is used to control the base station to perform necessary actions, such as controlling the base station to execute the operation process of the network device in the above method embodiment. The memory 1221 and the processor 1222 may serve one or more single boards. That is, a memory and a processor may be separately set on each single board. Alternatively, multiple single boards may share the same memory and processor. In addition, necessary circuits may also be provided on each single board.

[0443] The embodiment of the present application provides a communication system. The first communication system may include the above Figure 3 The terminal device involved in the embodiment shown, and Figure 3 or Figure 6 The network devices involved in the embodiment shown are terminal devices such as Figure 8 The terminal device 800 in the network device is, for example, Figure 7 The network device 700 in FIG.

[0444] The embodiment of the present application further provides a computer-readable storage medium, wherein the computer-readable storage medium stores a computer program, and when the computer program is executed by a computer, the computer can implement the method provided in the embodiment of the above method. Figure 3 or Figure 6 The process related to the network device in the embodiment shown.

[0445] The embodiment of the present application further provides a computer-readable storage medium for storing a computer program. When the computer program is executed by a computer, the computer can implement the method provided in the embodiment of the method. Figure 3 or Figure 6 The process related to the terminal device in the embodiment shown.

[0446] The embodiment of the present application further provides a computer program product, which is used to store a computer program. When the computer program is executed by a computer, the computer can implement the method provided in the embodiment of the above method. Figure 3 or Figure 6 The process related to the network device in the embodiment shown.

[0447] The embodiment of the present application further provides a computer program product, which is used to store a computer program. When the computer program is executed by a computer, the computer can implement the method provided in the embodiment of the above method. Figure 3 or Figure 6 The process related to the terminal device in the embodiment shown.

[0448] It should be understood that the processor mentioned in the embodiments of the present application may be a CPU, or may 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, etc. The general-purpose processor may be a microprocessor or any conventional processor, etc.

[0449] It should also be understood that the memory mentioned in the embodiments of the present application may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memories. Among them, the non-volatile memory may be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), or a flash memory. The volatile memory may be a random access memory (RAM), which is used as an external cache. By way of example and not limitation, many forms of RAM are available, such as static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double data rate synchronous dynamic random access memory (DDR SDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous link dynamic random access memory (SLDRAM), and direct rambus RAM (DR RAM).

[0450] It should be noted that when the processor is a general-purpose processor, DSP, ASIC, FPGA or other programmable logic device, discrete gate or transistor logic device, discrete hardware component, the memory (storage module) is integrated into the processor.

[0451] It should be noted that the memory described herein is intended to include, but not be limited to, these and any other suitable types of memory.

[0452] It should be understood that in the various embodiments of the present application, the size of the serial numbers of the above-mentioned processes does not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.

[0453] Those skilled in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application.

[0454] Those skilled in the art will clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0455] In the several embodiments provided in this application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. For example, the device embodiments described above are merely schematic. For example, the division of the units is merely a logical function division. In actual implementation, there may be other division methods, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0456] The units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed across multiple network units. Some or all of these units may be selected to achieve the purpose of this embodiment according to actual needs.

[0457] In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0458] If the functions are implemented in the form of software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application, or the part that contributes to the prior art, or the part of the technical solution, can be embodied in the form of a software product. The computer software product is stored in a storage medium and includes several instructions for enabling a computer device (which can be a personal computer, server, or network device, etc.) to perform all or part of the steps of the method described in each embodiment of the present application. The aforementioned computer-readable storage medium can be any available medium that can be accessed by a computer. By way of example and not limitation, computer-readable media may include random access memory (RAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), compact disc read-only memory (CD-ROM), universal serial bus flash disk, mobile hard disk, or other optical disk storage, magnetic disk storage media or other magnetic storage devices, or any other medium that can be used to carry or store desired program code in the form of instructions or data structures and can be accessed by a computer.

[0459] The above description is merely a specific embodiment of the present application, but the scope of protection of the embodiments of the present application is not limited thereto. Any person skilled in the art can easily conceive of changes or substitutions within the technical scope disclosed in the embodiments of the present application, and such changes or substitutions should be included in the scope of protection of the embodiments of the present application. Therefore, the scope of protection of the embodiments of the present application should be based on the scope of protection of the claims.

Claims

1. A communication method, characterized in that: The method is applicable to a terminal device and includes: receiving first information from a network device, where the first information is used to indicate transmission direction information and / or service load information, where the service load information is used to indicate a size of a service volume to be transmitted by the terminal device; receiving downlink control information DCI from the network device according to the first information; The transmission direction information indicates at least one of the following: a first transmission direction state, used to indicate that the DCI size of the second format is aligned to the DCI size of the first format; A second transmission direction state is used to indicate that the terminal device only receives the DCI in the first format, and the DCI in the first format does not include a DCI format indication field; a third transmission direction state, configured to indicate that the DCI size of the first format is aligned to the DCI size of the second format; A fourth transmission direction state is used to indicate that the terminal device only receives the DCI in the second format, and the DCI in the second format does not include a DCI format indication field; a default transmission direction state, used to instruct the terminal device to receive the DCI in the first format and the DCI in the second format; The DCI in the first format is DCI for scheduling uplink transmission, and the DCI in the second format is DCI for scheduling downlink transmission.

2. The method according to claim 1, characterized in that The alignment methods include zero padding and truncation.

3. The method according to claim 1 or 2, characterized in that The traffic load information indicates at least one of the following: A first load state, used to indicate that the service load of the terminal device is heavy; The second load state is used to indicate that the service load of the terminal device is light.

4. The method according to claim 3, characterized in that When the terminal device is in the first load state, the terminal device only detects the first type of DCI, or detects the first type of DCI in the search space corresponding to the second type of DCI; and / or, When the terminal device is in the second load state, the terminal device only detects the second type of DCI, or detects the second type of DCI in the search space corresponding to the first type of DCI; and / or, When the terminal device is in a default load state, the terminal device detects the first type of DCI in a search space corresponding to the first type of DCI, and / or detects the second type of DCI in a search space corresponding to the second type of DCI; The formats of the first type of DCI and the second type of DCI are different, and the indication field included in the second type of DCI and the size of the indication field are predefined.

5. The method according to claim 1 or 2, characterized in that Receiving DCI from the network device according to the first information includes: Within the effective time, DCI is received from the network device according to the first information.

6. The method according to claim 5, characterized in that The method further comprises: The effective time is determined according to the effective time indication information from the network device.

7. The method according to claim 6, characterized in that The valid time indication information indicates at least one of a period, a duration, and an initial offset, wherein: The period is the period of the effective time; The duration is the length of time during which the effective time is in one cycle; The initial offset is the offset between the starting time of the effective time in a cycle and the starting time of the cycle in which the effective time belongs.

8. The method according to claim 1 or 2, characterized in that The method further comprises: Transmission characteristic information is sent to the network device, where the transmission characteristic information is used to indicate the characteristics of the service to be transmitted by the terminal device.

9. The method according to claim 1 or 2, characterized in that include: The first information is carried in a radio resource control RRC message, or in a media access control control element MAC CE.

10. A communication method, characterized in that: The method is applicable to a network device, including: Sending first information to a terminal device, where the first information is used to indicate transmission direction information and / or service load information, where the service load information is used to indicate a size of a service volume to be transmitted by the terminal device; Sending downlink control information DCI to the terminal device; The transmission direction information indicates at least one of the following: a first transmission direction state, used to indicate that the DCI size of the second format is aligned to the DCI size of the first format; A second transmission direction state is used to indicate that the terminal device only receives the DCI in the first format, and the DCI in the first format does not include a DCI format indication field; a third transmission direction state, configured to indicate that the DCI size of the first format is aligned to the DCI size of the second format; A fourth transmission direction state is used to indicate that the terminal device only receives the DCI in the second format, and the DCI in the second format does not include a DCI format indication field; a default transmission direction state, used to instruct the terminal device to receive the DCI in the first format and the DCI in the second format; The DCI in the first format is DCI for scheduling uplink transmission, and the DCI in the second format is DCI for scheduling downlink transmission.

11. The method according to claim 10, characterized in that The alignment methods include zero padding and truncation.

12. The method according to claim 10 or 11, characterized in that The traffic load information indicates at least one of the following: A first load state, used to indicate that the service load of the terminal device is heavy; The second load state is used to indicate that the service load of the terminal device is light.

13. The method according to claim 12, characterized in that When the first information indicates the first load state, the network device sends only the first type of DCI, or sends the first type of DCI in the search space corresponding to the second type of DCI; and / or, When the first information indicates the second load state, the network device sends only the second type of DCI, or sends the second type of DCI in the search space corresponding to the first type of DCI; and / or, When the first information indicates a default load state, the network device sends the first type of DCI in the search space corresponding to the first type of DCI, and / or sends the second type of DCI in the search space corresponding to the second type of DCI; The formats of the first type of DCI and the second type of DCI are different, and the indication field included in the second type of DCI and the size of the indication field are predefined.

14. The method according to claim 10 or 11, characterized in that Sending downlink control information DCI to the terminal device, including: Within the effective time, downlink control information DCI is sent to the terminal device.

15. The method according to claim 14, characterized in that The method further comprises: Sending valid time indication information to the terminal device, where the valid time indication information is used to determine the effective time.

16. The method according to claim 15, characterized in that The valid time indication information indicates at least one of a period, a duration, and an initial offset, wherein: The period is the period of the effective time; The duration is the length of time during which the effective time is in one cycle; The initial offset is the offset between the starting time of the effective time in a cycle and the starting time of the cycle in which the effective time belongs.

17. The method according to claim 10 or 11, characterized in that The method further comprises: Receive transmission characteristic information from the terminal device, where the transmission characteristic information is used to indicate characteristics of a service to be transmitted by the terminal device.

18. The method according to claim 10 or 11, characterized in that include: The first information is carried in a radio resource control RRC message, or in a media access control control element MAC CE.

19. A communication device comprising at least one processor and a communication interface, characterized in that: The communication interface is connected to the at least one processor, and the communication interface is used to obtain a program or instruction. When the program or instruction is executed by the processor, the communication method according to any one of claims 1 to 9 is implemented.

20. A communication device comprising at least one processor and a communication interface, characterized in that: The communication interface is connected to the at least one processor, and the communication interface is used to obtain a program or instruction. When the program or instruction is executed by the processor, the communication method according to any one of claims 10 to 18 is implemented.

21. A readable storage medium, characterized in that The method comprises a program or an instruction, and when the program or the instruction is executed by a computer, the communication method according to any one of claims 1 to 9 is implemented, or the communication method according to any one of claims 10 to 18 is implemented.

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