CN113329495B - Communication method and device - Google Patents

Communication method and device Download PDF

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Publication number
CN113329495B
CN113329495B CN202010132596.6A CN202010132596A CN113329495B CN 113329495 B CN113329495 B CN 113329495B CN 202010132596 A CN202010132596 A CN 202010132596A CN 113329495 B CN113329495 B CN 113329495B
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uplink transmission
time domain
time
scheduling period
uplink
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CN113329495A (en
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花梦
铁晓磊
李峰
袁锋
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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Priority to CN202010132596.6A priority Critical patent/CN113329495B/en
Priority to PCT/CN2020/140977 priority patent/WO2021169579A1/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
    • H04W16/02—Resource partitioning among network components, e.g. reuse partitioning
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0446—Resources in time domain, e.g. slots or frames
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal

Abstract

A communication method and device, the method includes: the terminal device receives at least one piece of scheduling information of first uplink transmission from the network device, and according to the scheduling information, the terminal device can judge whether the interval duration between the time domain starting position of the first scheduling period and the time domain ending position of the last uplink transmission of the previous scheduling period is greater than or equal to a first time threshold value, and when the judgment result is yes, the terminal device determines the transmission parameter of the uplink transmission in the first scheduling period according to the frequency domain resource information of the uplink transmission scheduled in the first scheduling period, wherein the transmission parameter comprises at least one of a center frequency and a data sampling rate, so that the uplink transmission is sent by adopting the transmission parameter in the first scheduling period. The method is used for realizing that the terminal equipment determines the transmission parameters according to the time-frequency resource information of the uplink transmission in the scheduling period, avoiding adopting the transmission parameters of one activated BWP to send the uplink transmission and being beneficial to saving the power consumption of the terminal equipment.

Description

Communication method and device
Technical Field
The present application relates to the field of communications technologies, and in particular, to a communication method and apparatus.
Background
In the third generation partnership project (3) rd generation partnership project, 3GPP) of the fifth generation mobile communication technology (the 5 th generation, 5G) New Radio (NR) systems, the concept of bandwidth part (BWP) is introduced. The introduction of BWP, which is advantageous to control the cost and power consumption of the terminal device, is a key technology in 5G. Between the performance, cost and flexibility of the terminal device, flexible configuration and processing can be performed through the BWP concept, so that the 5G system is very flexible in configuration of bandwidth.
In the prior art, for a terminal device, up to 4 BWPs can be configured on each carrier for a cellular link, and only one BWP can be activated on one carrier at the same time. At present, in an active BWP, a terminal device always performs uplink transmission according to a fixed central frequency and a fixed data sampling rate, mainly because when the central frequency or the sampling rate changes, Radio Frequency (RF) parameter reconfiguration needs to be performed, and therefore a certain RF interruption time is generated, and the quality and reliability of communication cannot be guaranteed. However, this results in that even though the uplink signal to be transmitted only needs to occupy a small portion of bandwidth on the active BWP, the terminal device still transmits the uplink signal using the fixed center frequency and data sampling rate, and thus, the transmission method has a problem that the power consumption of the terminal device is large.
Disclosure of Invention
The application provides a communication method and apparatus, which are used for enabling a terminal device to determine a transmission parameter according to time-frequency resource information of uplink transmission in a scheduling period, and avoiding transmitting the uplink transmission by using the transmission parameter of an activated BWP or an activated carrier, thereby being beneficial to saving power consumption of the terminal device side.
In a first aspect, an embodiment of the present application provides a communication method, where the method is applied to a network device, and includes:
the network equipment determines at least one piece of scheduling information, wherein the scheduling information is used for indicating time-frequency resource information of at least one uplink transmission scheduled in a first scheduling period. Wherein the at least one piece of scheduling information determined by the network device satisfies the following condition: an interval duration between a time domain starting position of the first scheduling period and a time domain ending position of the last uplink transmission of a previous scheduling period is greater than or equal to a first time threshold, and/or an interval duration between a time domain ending position of the last uplink transmission of at least one uplink transmission scheduled by the first scheduling period and a time domain starting position of a next scheduling period is greater than or equal to the first time threshold, and uplink transmission of the terminal equipment is not scheduled within the interval duration; the network device then sends scheduling information to the terminal device and receives at least one uplink transmission from the terminal device.
In the embodiment of the application, the terminal device determines the transmission parameter according to the time-frequency resource information of the uplink transmission in the scheduling period, so that the uplink transmission is prevented from being sent by using the transmission parameter of one activated BWP or one activated carrier, which is beneficial to saving the power consumption of the terminal device. When there are multiple scheduling periods, the terminal device may determine different transmission parameters, such as a center frequency and a data sampling rate, for uplink transmission in different scheduling periods, respectively, so as to implement that uplink transmission in different scheduling periods respectively adopts different center frequencies and data sampling rates.
In a possible embodiment, the network device may further send at least one higher layer signaling to the terminal device, where the at least one higher layer signaling is used to configure the first scheduling period and/or the first time length threshold. In another possible implementation, the first scheduling period and/or the first time threshold may be specified by a protocol.
In a possible embodiment, the at least one scheduling information determined by the network device may further satisfy the following condition: the interval duration between the time domain ending position of the time domain resource bearing the scheduling information and the time domain starting position of the first scheduling period is greater than or equal to a second duration threshold. In this way, the terminal device can realize enough time for center frequency switching and/or data sampling rate switching. Wherein the second duration threshold is related to at least one of: the terminal equipment analyzes the reference time length required by the physical downlink control channel, the time length required by the position switching of the center frequency of the uplink transmission, the time length required by the data sampling rate switching of the uplink transmission, or the preparation time length required by the sending uplink transmission of the terminal equipment.
In one possible embodiment, the first duration threshold is related to at least one of the following factors: the time length required for switching the position of the center frequency of the uplink transmission, the time length required for switching the data sampling rate of the uplink transmission, or the preparation time length required for sending the uplink transmission by the terminal equipment. Typically, the second duration threshold is greater than or equal to the first duration threshold. In one possible implementation, the second duration threshold and the first duration threshold are the same threshold.
In a second aspect, an embodiment of the present application provides a communication method, which may be executed by a terminal device, and includes:
when the network device sends the scheduling information to the terminal device according to the method shown in the first aspect, the terminal device may receive scheduling information of at least one first uplink transmission, where the scheduling information of the at least one first uplink transmission is used to indicate time-frequency resource information of at least one first uplink transmission scheduled in the first scheduling period. The terminal equipment determines at least one transmission parameter of first uplink transmission in a first scheduling period according to the maximum frequency and the minimum frequency, wherein the transmission parameter comprises at least one of a center frequency and a data sampling rate; and then the terminal equipment sends at least one first uplink transmission in the first scheduling period by adopting the transmission parameters in the first scheduling period.
In the embodiment of the present application, for an active BWP or an active carrier, the terminal device does not send all uplink transmissions with a fixed center frequency and a fixed data sampling rate, and uplink transmissions in different scheduling periods may use different center frequencies and different data sampling rates for transmission, which is beneficial to saving power consumption on the terminal device side, thereby improving performance of the terminal device.
In a possible embodiment, if the terminal device further receives scheduling information of at least one downlink transmission, the scheduling information of the at least one downlink transmission is used to indicate frequency domain resource information of the at least one downlink transmission scheduled in the first scheduling period; the terminal device determines at least one transmission parameter of the first uplink transmission in the first scheduling period according to the maximum frequency and the minimum frequency of the at least one first uplink transmission scheduled in the first scheduling period in the frequency domain, and the maximum frequency and the minimum frequency of the at least one downlink transmission scheduled in the first scheduling period in the frequency domain.
In one possible embodiment, when the uplink transmission scheduled by the network device in the first scheduling period further satisfies the following condition, at least one first uplink transmission in the first scheduling period comprises a first part of uplink transmission and a second part of uplink transmission; the terminal device may further determine, according to at least one piece of frequency domain resource information of the first uplink transmission scheduled in the first scheduling period, a first transmission parameter of the first uplink transmission in the first scheduling period and a second transmission parameter of the second uplink transmission in the first scheduling period; and then the terminal equipment sends the first part of uplink transmission by adopting the first transmission parameter in the first scheduling period, and sends the second part of uplink transmission by adopting the second transmission parameter in the first scheduling period.
It should be noted that the terminal device may also divide uplink transmission in one scheduling period into three parts or more, which is not limited in this embodiment of the present application. The method is beneficial to further saving the power consumption of the terminal equipment side, thereby improving the performance of the terminal equipment.
In the embodiment of the application, the method is beneficial to further saving the power consumption of the terminal equipment side, so that the performance of the terminal equipment is improved.
In a third aspect, an embodiment of the present application provides a communication method, which may be executed by a terminal device, and includes:
the terminal device receives scheduling information of at least one first uplink transmission from the network device, wherein the scheduling information of the at least one first uplink transmission is used for indicating time-frequency resource information of the at least one first uplink transmission scheduled in the first scheduling period.
Further, the terminal device determines whether the first interval duration and/or the second interval duration is greater than or equal to a first time threshold, where the first interval duration is an interval duration between a time domain starting position of the first scheduling period and a time domain ending position of a last uplink transmission of a previous scheduling period, and/or the second interval duration is an interval duration between a time domain ending position of a last uplink transmission in at least one first uplink transmission scheduled by the first scheduling period and a time domain starting position of a next scheduling period. If so, the terminal device determines at least one transmission parameter of the first uplink transmission in the first scheduling period according to the frequency domain resource information of the at least one first uplink transmission scheduled in the first scheduling period, wherein the transmission parameter comprises at least one of a center frequency and a data sampling rate; and transmitting at least one first uplink transmission in the first scheduling period by adopting the transmission parameters in the first scheduling period. Otherwise, the terminal device determines that the transmission parameter of at least one first uplink transmission in the first scheduling period is the transmission parameter of the activated uplink bandwidth part BWP or the activated uplink carrier; and transmitting at least one first uplink transmission in the first scheduling period by using the activated uplink BWP or the transmission parameters of the activated uplink carrier in the first scheduling period.
In the embodiment of the present application, for an active BWP or an active carrier, the terminal device does not send all uplink transmissions with a fixed center frequency and a data sampling rate, and uplink transmissions in different scheduling periods may use different center frequencies for transmission, which is beneficial to saving power consumption on the terminal device side, thereby improving the performance of the terminal device.
In a possible embodiment, the terminal device may further determine a center frequency or a data sampling rate of at least one first uplink transmission in the first scheduling period according to the maximum frequency and the minimum frequency.
In a possible embodiment, if the terminal device further receives scheduling information of at least one downlink transmission, since the scheduling information of at least one downlink transmission is used to indicate frequency domain resource information of at least one downlink transmission scheduled in the first scheduling period, the terminal device may determine a transmission parameter of at least one first uplink transmission in the first scheduling period according to a maximum frequency and a minimum frequency of at least one first uplink transmission scheduled in the first scheduling period in a frequency domain, and a maximum frequency and a minimum frequency of at least one downlink transmission scheduled in the first scheduling period in a frequency domain.
In one possible embodiment, when the uplink transmission scheduled by the network device for the first scheduling period further satisfies the following condition: when the first uplink transmission in the first scheduling period is divided into at least two adjacent parts in time domain, aiming at the first part uplink transmission and the second part uplink transmission which are adjacent in any two time domains; and the time interval between the time domain starting position of the second part of uplink transmission and the time domain ending position of the first part of uplink transmission is greater than or equal to a first time threshold. The terminal equipment determines a first transmission parameter of a first part of uplink transmission and a second transmission parameter of a second part of uplink transmission in a first scheduling period according to frequency domain resource information of at least one first uplink transmission scheduled in the first scheduling period; and then, in a first scheduling period, sending a first part of uplink transmission by adopting the first transmission parameter, and in the first scheduling period, sending a second part of uplink transmission by adopting the second transmission parameter.
It should be noted that at least one uplink transmission in one scheduling period may include at least two partial uplink transmissions. Without loss of generality, the first partial uplink transmission and the second partial uplink transmission are any two time-domain adjacent portions in the at least two partial uplink transmissions, and this is not limited in this embodiment of the application. Compared with the foregoing method embodiment, in the foregoing method embodiment, assuming that the data sampling rate B0 of the uplink transmission in the first scheduling period is the data sampling rate B1 and the data sampling rate B2 corresponding to the two partial uplink transmissions determined by the method are B1 and B2, where B1 and B2 may be all or partially smaller than B0, and the smaller the data sampling rate is, the smaller the power consumption of the terminal device is, which may help further save the power consumption at the terminal device side, thereby improving the performance of the terminal device.
In the embodiment of the application, the method is beneficial to further saving the power consumption of the terminal equipment side, so that the performance of the terminal equipment is improved.
In a possible embodiment, whether the transmission in the first scheduling period satisfies a condition that an interval duration between a time domain end position of a time domain resource carrying scheduling information of at least one first uplink transmission and a time domain start position of the first scheduling period is greater than or equal to a second duration threshold. It should be noted that the second duration threshold and the first duration threshold may be the same threshold.
In a possible embodiment, the terminal device may further receive at least one higher layer signaling from the network device, where the at least one higher layer signaling is used for configuring the first scheduling period and/or the first time length threshold. In another possible implementation, the first scheduling period and/or the first time threshold may be specified by a protocol.
In a fourth aspect, an embodiment of the present application provides a communication method, where the method is applied to a network device, and the method includes:
the network equipment determines at least one piece of first scheduling information, wherein the at least one piece of first scheduling information is used for indicating time-frequency resource information of M uplink transmissions; the M uplink transmissions correspond to N uplink transmission groups, and in two adjacent uplink transmissions of a time domain in a first uplink transmission group in the N uplink transmission groups, the interval between the time domain ending position of the previous uplink transmission and the time domain starting position of the next uplink transmission is smaller than a first time length threshold value; and/or the interval duration between the earliest position of the first uplink transmission group in the time domain and the latest position of the previous uplink transmission group adjacent to the time domain in the time domain is greater than or equal to the first time length threshold, and/or the interval duration between the latest position of the first uplink transmission group in the time domain and the earliest position of the next uplink transmission group adjacent to the time domain in the time domain is greater than or equal to the first time length threshold. The network device then sends at least one first scheduling information to the terminal device and receives M uplink transmissions from the terminal device.
In the embodiment of the present application, for an active BWP or an active carrier, the terminal device does not send all uplink transmissions with a fixed center frequency and a fixed data sampling rate, and different uplink transmission groups may use different center frequencies for transmission, which is helpful for saving power consumption on the terminal device side, thereby improving the performance of the terminal device.
In a possible embodiment, the network device may further send at least one higher layer signaling to the terminal device, where the at least one higher layer signaling is used to configure the first scheduling period, the first duration threshold, the second duration threshold, and the like. In another possible implementation, the first scheduling period and/or the first time threshold may be specified by a protocol.
In a possible embodiment, the at least one scheduling information determined by the network device may further satisfy the following condition: and the interval duration between the time domain ending position of the time domain resource bearing the scheduling information and the time domain starting position of the first scheduling period is greater than or equal to a second duration threshold. In this way, the terminal device can realize enough time for center frequency switching. Wherein the second duration threshold is related to at least one of: the terminal equipment analyzes the reference time length required by the physical downlink control channel, the time length required by the position switching of the center frequency of the uplink transmission, the time length required by the data sampling rate switching of the uplink transmission, or the preparation time length required by the sending uplink transmission of the terminal equipment.
In one possible embodiment, the first duration threshold is related to at least one of the following factors: the time length required for switching the position of the center frequency of the uplink transmission, the time length required for switching the data sampling rate of the uplink transmission, or the preparation time length required for sending the uplink transmission by the terminal equipment. Typically, the second duration threshold is greater than or equal to the first duration threshold. In one possible implementation, the second duration threshold and the first duration threshold are the same threshold.
In a fifth aspect, an embodiment of the present application provides a communication method, which may be executed by a terminal device, and includes:
when the network device sends at least one first scheduling information to the terminal device according to the method in the fourth aspect, the terminal device receives the at least one first scheduling information, and the at least one first scheduling information is used to indicate time-frequency resource information of M uplink transmissions; the terminal equipment determines N uplink transmission groups corresponding to M uplink transmissions, and then determines a first transmission parameter according to time-frequency resource information of the uplink transmission in a first uplink transmission group in the N uplink transmission groups, wherein the first uplink transmission group comprises at least one uplink transmission; and finally, sending uplink transmission in the first uplink transmission group by adopting a first transmission parameter, wherein M and N are positive integers, and M is more than or equal to N and more than or equal to 1.
In the embodiment of the present application, for an active BWP or an active carrier, the terminal device does not send all uplink transmissions with a fixed center frequency and a fixed data sampling rate, and different uplink transmission groups may use different center frequencies for transmission, which is helpful for saving power consumption on the terminal device side, thereby improving the performance of the terminal device.
In a possible embodiment, the terminal device may determine a transmission parameter of at least one first uplink transmission in the first scheduling period according to the maximum frequency and the minimum frequency, where the transmission parameter includes at least one of a data sampling rate and a center frequency.
In a possible embodiment, if the terminal device further receives scheduling information of at least one downlink transmission, the scheduling information of the at least one downlink transmission is used to indicate frequency domain resource information of the at least one downlink transmission scheduled in the first scheduling period; the terminal device determines a transmission parameter of the first uplink transmission group according to the maximum frequency and the minimum frequency of the first uplink transmission group in the frequency domain and the maximum frequency and the minimum frequency of at least one downlink transmission in the frequency domain, wherein the transmission parameter includes at least one of a data sampling rate and a center frequency.
In a sixth aspect, an embodiment of the present application provides a communication method, which may be executed by a terminal device, and includes:
and when the bandwidths of all uplink transmissions scheduled by the scheduling information received by the terminal equipment within the third duration threshold are less than or equal to the first bandwidth threshold, the terminal equipment executes the first mode. The first mode includes:
after receiving at least one piece of first scheduling information, when uplink transmission in a first uplink transmission group meets at least one of the following conditions, determining N uplink transmission groups corresponding to M uplink transmissions, wherein the at least one piece of first scheduling information is used for indicating time-frequency resource information of the M uplink transmissions, M and N are positive integers, and M is greater than or equal to N and is greater than or equal to 1. Then, the terminal equipment determines a first transmission parameter according to the time-frequency resource information of uplink transmission in a first uplink transmission group in the N uplink transmission groups, wherein the first uplink transmission group comprises at least one uplink transmission, and finally, the terminal equipment sends the uplink transmission in the first uplink transmission group by adopting the first transmission parameter;
wherein the at least one condition comprises: in two adjacent uplink transmissions in a time domain in a first uplink transmission group, the interval between the time domain end position of the previous uplink transmission and the time domain start position of the next uplink transmission is less than a first time threshold value; and/or the interval duration between the earliest position of the first uplink transmission group in the time domain and the latest position of the previous uplink transmission group adjacent to the time domain in the time domain is greater than or equal to a first time length threshold, and/or the interval duration between the latest position of the first uplink transmission group in the time domain and the earliest position of the next uplink transmission group adjacent to the time domain in the time domain is greater than or equal to the first time length threshold.
In this embodiment, for an activated BWP or an activated carrier, the terminal device does not send all uplink transmissions with a fixed center frequency and a fixed data sampling rate, but determines a transmission parameter corresponding to an uplink transmission group according to time-frequency resource information corresponding to the uplink transmission group, where the transmission parameter, for example, the data sampling rate, is usually smaller than a bandwidth of the activated BWP or the activated carrier, and the smaller the data sampling rate, the smaller the power consumption of the terminal device is, which is helpful for saving the power consumption on the terminal device side, thereby improving the performance of the terminal device.
In a possible embodiment, the terminal device determines a maximum frequency and a minimum frequency of uplink transmission in the first uplink transmission group in a frequency domain, and then determines a first transmission parameter corresponding to the first uplink transmission group according to the maximum frequency and the minimum frequency.
In a possible embodiment, the first uplink transmission group scheduled by the network device further satisfies the following condition a, where the condition a includes: the time domain ending position of the time domain resource of the first scheduling information corresponding to the first uplink transmission group is before the first time domain position, the interval duration between the time domain ending position of the time domain resource of the first scheduling information and the first time domain position is greater than or equal to a second duration threshold, the first scheduling information is used for indicating the time frequency resource information of uplink transmission in the first uplink transmission group, and the first time domain position is the earliest position of the first uplink transmission group in the time domain. Alternatively, condition a includes: aiming at the first uplink transmission group, the time domain ending position of the time domain resource of the at least one second scheduling information is behind the first time domain position, and the at least one second scheduling information is used for indicating the time frequency resource information of the last L uplink transmissions in the time domain in the first uplink transmission group; the frequency domain range of uplink transmission scheduled by at least one piece of second scheduling information is between the maximum frequency and the minimum frequency of uplink transmission in the first uplink transmission group, and the interval between the time domain end position of the last uplink transmission in the time domain in the first uplink transmission group and the earliest position of the next uplink transmission group adjacent to the time domain in the time domain is greater than or equal to a first time length threshold value.
In a possible embodiment, when the bandwidths of all uplink transmissions scheduled by T consecutive scheduling information received by the terminal device are greater than the second bandwidth threshold, the terminal device executes a second mode, where the second mode is an uplink transmission scheduled by the scheduling information received after the transmission parameter corresponding to the activated uplink BWP or the activated uplink carrier is adopted, and T is a positive integer.
In a seventh aspect, the present application provides a communication apparatus, which may be a terminal device or a chip disposed inside the terminal device. The communication device has a function of implementing the first aspect, for example, the communication device includes a module or a unit or a means (means) corresponding to the step of executing the first aspect, and the function or the unit or the means may be implemented by software, or implemented by hardware executing corresponding software.
In one possible design, the communication apparatus includes a processing unit, a communication unit, wherein the communication unit may be configured to send and receive signals to and from other apparatuses to implement communication between the communication apparatus and the other apparatuses, for example, the communication unit is configured to receive first information from a network device; the processing unit may be adapted to perform some internal operations of the communication device. The functions performed by the processing unit, the communication unit may correspond to the steps involved in the above aspects of the terminal device.
In one possible design, the communication device includes a processor, and may further include a transceiver, and the transceiver is configured to transmit and receive signals, and the processor executes the program instructions to implement the method in any possible design or implementation manner of the first aspect. Wherein the communications apparatus can further comprise one or more memories for coupling with the processor. The one or more memories may be integrated with the processor or separate from the processor, which is not limited in this application. The memory may hold the necessary computer programs or instructions to implement the functions referred to in the first aspect above. The processor may execute computer programs or instructions stored by the memory, which when executed, cause the communication apparatus to implement the method in any possible design or implementation referred to by the terminal device in the aspects described above.
In one possible design, the communication device includes a processor and a memory, and the memory can store the necessary computer programs or instructions for implementing the functions of the first aspect described above. The processor may execute computer programs or instructions stored by the memory which, when executed, cause the communication apparatus to implement the method in any possible design or implementation referred to by the terminal device in the aspects above.
In one possible design, the communication device includes at least one processor and an interface circuit, where the at least one processor is configured to communicate with other devices through the interface circuit and to perform the method performed by the terminal device in any of the possible designs or implementations of the first aspect.
In an eighth aspect, the present application provides a communication apparatus, which may be a network device or a chip disposed inside the network device. The communication device has a function of implementing the network device, for example, the communication device includes a module, a unit, or a means corresponding to the step of executing the second aspect, and the function, the unit, or the means may be implemented by software, hardware, or hardware.
In one possible design, the communication apparatus includes a processing unit, a communication unit, wherein the communication unit may be configured to send and receive signals to and from the communication apparatus to implement communication between the communication apparatus and other apparatuses, for example, the communication unit is configured to send at least one higher layer signaling to the terminal device; the processing unit may be adapted to perform some internal operations of the communication device. The functions performed by the processing unit and the communication unit may correspond to the steps involved in the network device aspect described above.
In one possible design, the communication device includes a processor, and may further include a transceiver for transceiving signals, and the processor executes the program instructions to perform the method in any possible design or implementation manner of the second aspect. Wherein the communications apparatus can further include one or more memories for coupling with the processor. The one or more memories may be integrated with the processor or separate from the processor, which is not limited in this application. The memory may hold the necessary computer programs or instructions to implement the functions referred to in the second aspect above. The processor may execute a computer program or instructions stored by the memory that, when executed, cause the communication device to implement the method in any possible design or implementation of the network equipment aspect described above.
In one possible design, the communication device comprises a processor and a memory, which may hold the necessary computer programs or instructions to implement the functionality referred to in the second aspect above. The processor may execute computer programs or instructions stored by the memory that, when executed, cause the communication apparatus to implement the method of any possible design or implementation of the network device aspects described above.
In one possible design, the communication device includes at least one processor and an interface circuit, where the at least one processor is configured to communicate with other devices through the interface circuit and to perform the method in any possible design or implementation of the network apparatus aspect described above.
In a ninth aspect, the present application provides a computer-readable storage medium having computer-readable instructions stored thereon which, when read and executed by a computer, cause the computer to perform the method of any one of the possible designs of the above aspects.
In a tenth aspect, the present application provides a computer program product which, when read and executed by a computer, causes the computer to perform the method of any one of the possible designs of the various aspects described above.
In an eleventh aspect, the present application provides a chip comprising a processor coupled with a memory for reading and executing a software program stored in the memory to implement the method in any one of the possible designs of the above aspects.
Drawings
Fig. 1A is a schematic diagram of scheduling multiple uplink transmissions in an uplink-enabled BWP according to an embodiment of the present application;
fig. 1B is a schematic diagram of an internal component structure of a terminal device according to an embodiment of the present application;
fig. 2 is a schematic diagram of a communication system suitable for use in the communication method of the embodiment of the present application;
fig. 3 is a schematic diagram of a communication method according to an embodiment of the present application;
fig. 4A to fig. 4E are schematic diagrams illustrating a transmission method of uplink transmission according to an embodiment of the present application;
fig. 5 is a schematic diagram of another communication method provided in the embodiment of the present application;
fig. 6 is a schematic diagram of another communication method provided in the embodiment of the present application;
fig. 7A to fig. 7C are schematic diagrams illustrating a transmission method of uplink transmission according to an embodiment of the present application;
fig. 8 is a schematic diagram of another communication method provided in the embodiment of the present application;
fig. 9 is a schematic structural diagram of a communication device according to an embodiment of the present application;
fig. 10 is a schematic structural diagram of a communication device according to an embodiment of the present application;
fig. 11 is a schematic structural diagram of a communication device according to an embodiment of the present application.
Detailed Description
The technical scheme in the application is described in the following with the accompanying drawings of the specification.
It should be understood that the technical solution in the embodiment of the present application may be applied to a 5G communication system, and may even be applied to a communication system after 5G in the future, and the embodiment of the present application does not limit this.
The terminal device referred to in this embodiment may be a device that provides voice and/or data connectivity to a user, and may also be referred to as a User Equipment (UE), a Mobile Station (MS), a Mobile Terminal (MT), or the like. Such as a handheld device, a vehicle-mounted device, etc., having a wireless connection function. Currently, some examples of terminal devices are: a mobile phone (mobile phone), a tablet computer, a notebook computer, a palm top computer, a Mobile Internet Device (MID), a wearable device, a Virtual Reality (VR) device, an Augmented Reality (AR) device, a wireless terminal in industrial control (industrial control), a wireless terminal in self driving (self driving), a wireless terminal in remote surgery (remote medical supply), a wireless terminal in smart grid (smart grid), a wireless terminal in transportation safety (smart security), a wireless terminal in city (smart city), a wireless terminal in home (smart home), and the like.
The network device in the embodiment of the present application may refer to a device in a wireless network, for example, a Radio Access Network (RAN) node (or device) that accesses a terminal device to the wireless network, which may also be referred to as a base station. Currently, some examples of RAN nodes are: a Node B (gnb) that continues to evolve, a Transmission Reception Point (TRP), an evolved Node B (eNB), a Radio Network Controller (RNC), a Node B (NB), a Base Station Controller (BSC), a Base Transceiver Station (BTS), a home base station (e.g., home evolved Node B, or home Node B, HNB), a Base Band Unit (BBU), or a wireless fidelity (Wifi) access point (access point, AP). In addition, in one network configuration, the RAN may include a Centralized Unit (CU) node and a Distributed Unit (DU) node. The structure separates the protocol layers of the eNB in a Long Term Evolution (LTE) system, the functions of part of the protocol layers are put in the CU for centralized control, the functions of the rest part or all the protocol layers are distributed in the DU, and the DU is controlled by the CU in a centralized manner.
A Core Network (CN) device related in the embodiment of the present application. The CN device corresponds to different devices in different communication systems, for example, corresponds to a Serving GPRS Support Node (SGSN) or a Gateway GPRS Support Node (GGSN) in a 3G system, corresponds to a Mobility Management Entity (MME) or a serving gateway (S-GW) in a 4G system, and corresponds to a Core network related device (for example, NG-Core) of a 5G system in the 5G system.
In order to facilitate understanding of the present application, some terms in the present application will be explained first.
1) Carrier bandwidth refers to the frequency bandwidth of one carrier, which may also be referred to as a carrier for short. For example, the carrier bandwidth of the NR system may be one of 10MHz, 15MHz, 20MHz, 50MHz, 100MHz, 200MHz, 400MHz, and the like.
2) BWP, is the concept of 5G NR, i.e. network devices and terminal devices occupy a part of the bandwidth of a certain cell. Mainly because the bandwidth of one carrier of 5G can be large, e.g. 200MHz or 400 MHz. It should be noted that the bandwidth of one carrier is a bandwidth of each Component Carrier (CC) in a single base station Carrier Aggregation (CA) or Dual Connectivity (DC) scenario. Some end devices do not support this large bandwidth and therefore the network device may configure BWP, e.g., 20MHz, to the end device, and the end device may communicate with the network device over the 20MHz BWP.
BWP is supported in either Frequency Division Duplexing (FDD) or Time Division Duplexing (TDD) systems. BWPs may be divided into downlink BWPs (DL BWPs) and uplink BWPs (UL BWPs), where a network device may configure a plurality of DL BWPs and a plurality of UL BWPs for a terminal device, and activate at least one DL BWP and at least one UL BWP, and the terminal device receives downlink transmissions sent by the network device on the activated DL BWPs (i.e., active DL BWPs), where the downlink transmissions include, but are not limited to: downlink control signaling, downlink data; the terminal device sends uplink transmission on the activated UL BWP, where the uplink transmission includes but is not limited to: uplink control signaling, uplink data; the uplink control signaling may include a Scheduling Request (SR), a Sounding Reference Signal (SRs), Channel State Information (CSI)/Channel Quality Indicator (CQI) feedback, a demodulation reference signal (DMRS), a phase-tracking reference channel (PTRS), and a Sounding Reference Signal (SRs).
The BWP parameters include numerology parameters, which refer to subcarrier spacing, and parameters such as symbol length and Cyclic Prefix (CP) length corresponding to the subcarrier spacing.
In TDD systems, DL BWP and UL BWP of a terminal device are switched in pairs, i.e. once DL BWP is switched, UL BWP is also automatically switched to the pre-paired UL BWP. In FDD systems, however, the DL BWP handover and UL BWP handover of the UE are decoupled, not paired.
3) Active BWP is to convert BWP from an inactive state to an active state, and may also be understood as to convert an inoperable BWP to an operable BWP. Accordingly, "deactivating" BWP, which may also be described as performing deactivation of BWP, refers to converting BWP from an active state to an inactive state, which may also be understood as converting workable BWP to unworkable BWP.
4) The active state may refer to an operable state. BWP is in an active state, which means that the BWP is in a state in which it is operable, e.g., a state in which signal transmission or reception can be implemented. The inactive state, which is a concept corresponding to the active state, may refer to an inoperable state. The BWP being in the inactive state means that the BWP is in an inoperable state, for example, the BWP in the inactive state cannot implement signaling or receiving.
5) The active BWP is an active BWP, and may be understood as a BWP capable of transmitting or receiving a signal. The inactive BWP is a concept corresponding to the active BWP, and refers to the BWP in the inactive state, and may also be understood as a BWP that cannot transmit or receive a signal.
6) And a BWP switch (switch) for switching the active BWP. In the existing 3GPP NR 15 standard, when a terminal device operates in a cell, there is only one active DL BWP and only one active UL BWP. But the active BWP may be changed from one BWP to another BWP, which is called BWP handover. For example, the network device configures two DL BWPs, DLBWP1 and DL BWP2, for the terminal device. The DL BWP activated by the terminal device is DL BWP1, at which time the network device may send a BWP switch indication (the switch indication is downlink control information carried on one PDCCH), and cause the DL BWP of the terminal device to switch to DL BWP 2. Likewise, the network device may also instruct the terminal device to perform handover with UL BWP activated, also via PDCCH.
7) The uplink channel in NR includes: a Physical Uplink Shared Channel (PUSCH), a Physical Uplink Control Channel (PUCCH), and a Physical Random Access Channel (PRACH).
8) In NR, PUSCH transmission is divided into three types: (1) a PUSCH transmission based on dynamic scheduling; (2) configuration permission (Configured grant) Type 1: receiving a high-level configuration without receiving a physical-level indication, referred to as a configured uplink grant in a protocol; (3) configuration permission (Configured grant) Type 2: the physical layer indicates the activation or deactivation of the DCI after receiving the higher layer configuration, which is referred to as "configured uplink grant based on L1 signaling" in the protocol. For the first PUSCH transmission, the terminal equipment receives uplink scheduling once and performs PUSCH transmission once; for the second PUSCH transmission, some semi-persistent resources are configured in the high layer, and if uplink data need to be sent, the terminal equipment can use the resources to send the PUSCH, and if no uplink data need to be sent, the terminal equipment does not send the data; for the third PUSCH transmission, the higher layer configures some semi-persistent resources, which are then activated and deactivated by physical layer signaling, the activation behavior is similar to the second PUSCH transmission, and these resources cannot be used without activation or deactivation.
9) A cell is described from the perspective of resource management or mobility management by a higher layer (e.g., a protocol layer above a physical layer such as an RRC layer, a Medium Access Control (MAC) layer, etc.). The coverage area of each network device may be divided into one or more cells. In NR R15, a cell may be configured with one downlink carrier and optionally also with at least one uplink carrier. One BWP is a fractional bandwidth on a certain carrier of one cell. A cell is a generic name, and for a terminal device, a cell serving the terminal device is referred to as a serving cell. The cell referred to in this application may also be a serving cell.
10) And the scheduling mode of the network equipment in the NR standard R15 is as follows: when the network device schedules the terminal device to receive downlink data or schedules the terminal device to transmit uplink data, the network device first transmits scheduling information (physical downlink control channel, PDCCH)) to the terminal device, where the scheduling information indicates transmission parameters of a PDSCH (downlink data) or a Physical Uplink Shared Channel (PUSCH) (uplink data), and the transmission parameters include time-frequency resource positions of the PDSCH/PUSCH. Specifically, the time domain resource position includes a time slot where the PDSCH/PUSCH is located, a starting position and a length of a symbol occupied by the PDSCH/PUSCH in the time slot, and the frequency domain resource position includes a maximum frequency and a minimum frequency of a bandwidth occupied by the PDSCH/PUSCH, and a bandwidth size.
11) The terms "system" and "network" in the embodiments of the present application may be used interchangeably. "at least one" means one or more, "a plurality" means two or more. "and/or" describes the association relationship of the associated objects, meaning that there may be three relationships, e.g., a and/or B, which may mean: a alone, A and B together, and B alone, wherein A and B may be singular or plural. The character "/" generally indicates that the former and latter associated objects are in an "or" relationship. "at least one of the following" or similar expressions refer to any combination of these items, including any combination of the singular or plural items. For example, at least one (one) of a, b, or c, may represent: a, b, c, a-b, a-c, b-c, or a-b-c, wherein a, b, c may be single or multiple.
And, unless stated to the contrary, the embodiments of the present application refer to the ordinal numbers "first", "second", etc., for distinguishing a plurality of objects, and do not limit the sequence, timing, priority, or importance of the plurality of objects. For example, the first signal and the second signal are used only for distinguishing different signals, and do not indicate differences in the contents, priorities, transmission orders, importance levels, and the like of the two signals.
12) In the description of the present application, unless otherwise indicated, "plurality" means two or more, and other terms are similar. "and/or" describes the association relationship of the associated object, indicating that there may be three relationships, for example, a and/or B, which may indicate: a exists alone, A and B exist simultaneously, and B exists alone. The character "/" generally indicates that the former and latter associated objects are in an "or" relationship.
13) The terms "network" and "system" are often used interchangeably, but are understood by those skilled in the art. Information (information), signal (signal), message (message), channel (channel) may sometimes be mixed, it should be noted that the intended meaning is consistent when the distinction is not emphasized.
Currently, as shown in fig. 1A, a plurality of uplink transmissions are scheduled in one uplink active BWP, and different uplink transmissions occupy different bandwidths, but the terminal device determines a center frequency (also called Direct Current (DC) position) and a data sampling rate based on the size of the active BWP. The data sampling rate of the uplink transmission refers to the sampling rate of the digital domain signal before being converted into the analog domain signal, and in order to avoid aliasing, the data sampling rate needs to be greater than or equal to the data bandwidth of the uplink transmission (the frequency domain interval between the highest frequency and the lowest frequency). Currently, the data sampling rate is typically greater than the bandwidth of the active BWP. For example, when the bandwidth of the BWP is 10MHz, the data sampling rate may be 15.36 MHz; the data sampling rate may be 30.72MHz with a BWP bandwidth of 20 MHz.
The reason why the terminal device always sends uplink transmission according to the fixed central frequency f0 and the data sampling rate in an active BWP is that when the central frequency changes, the terminal device needs to re-lock the phase-locked loop or switch the analog low-pass filter mode, and along with the processes of software scheduling and configuration revocation, the processes need a certain time duration, which is assumed to be the first time duration threshold T 0 . As shown in fig. 1A, it is assumed that the terminal device uses the center frequency f0 to send the first uplink transmission, and uses the center frequency f1 to send the second uplink transmission, and if the interval duration T between the two different uplink transmissions is smaller than the first time threshold T 0 This may result in the second uplink transmission in fig. 1A being unable to be sent normally.
It can be seen that, currently, in an active BWP, a terminal device transmits all scheduled uplink transmissions in the BWP using a fixed center frequency and data sampling rate, regardless of whether the frequency domain location and bandwidth size of the scheduled uplink transmissions are different. However, this is disadvantageous for saving power consumption of the terminal device. Specifically, in general, a baseband integrated circuit (BBIC) chip and a Radio Frequency Integrated Circuit (RFIC) chip are provided in the terminal device, and the RFIC chip includes three parts, namely a digital front-end (DFE), a digital-to-analog converter (DAC) and an analog front-end (AFE), as shown in fig. 1B. The sampling rate of the digital domain signals transmitted on the interface of the BBIC and the RFIC is the data sampling rate of the uplink transmission. It can also be understood that the sampling rate of the digital domain signal before the DAC is the data sampling rate of the uplink transmission. When the terminal device performs uplink transmission by using a fixed central frequency and a data sampling rate, the two chips are in a working state, the RFIC and the BBIC consume power, wherein the power consumption of the RFIC is greater than that of the BBIC, and the power consumption of the RFIC and the BBIC can be reduced by using the variable central frequency and the variable data sampling rate, so that the terminal device transmits all scheduled uplink transmissions in a BWP by using the fixed central frequency and the data sampling rate, which is not favorable for saving the power consumption of the terminal device.
Based on the above technical problem analysis, an embodiment of the present invention provides a communication method for implementing cluster transmission of uplink transmissions scheduled in an active BWP, where different clusters may use different central frequencies and data sampling rates for uplink transmissions, and a terminal device ensures that an interval duration between different clusters is longer than a duration required for switching the central frequencies (e.g., the first duration threshold), so that not only normal transmission of uplink transmissions is ensured, but also power consumption of the terminal device is saved.
Please refer to fig. 2, which is a diagram illustrating a communication system to which an embodiment of the present invention is applicable. As shown in fig. 2, the terminal device 230 may access a wireless network to acquire services of the internet through the wireless network or communicate with other terminal devices through the wireless network. The wireless network includes a network device 210 and a core network device 220, wherein the network device 210 is used for accessing the terminal device 230 to the wireless network, and the core network device 220 is used for managing the terminal device and providing a gateway for communicating with the internet. It should be understood that the network architecture shown in fig. 2 is only described as including two terminal devices 230, but the embodiment of the present application is not limited thereto, for example, more terminal devices 130 may also be included in the network architecture; similarly, more network devices 210 may be included in the network architecture, and other devices may also be included.
It is to be understood that the network architecture applied by the solution in the embodiment of the present application may be a 5G NR network architecture, and certainly may also be a network architecture newly added in the future. The names of the network device and the terminal device related in the embodiment of the present application may be names of corresponding functions in a wireless communication network, for example, in an NR system, the network device may be a gNB, a TRP, or the like, and the terminal device may be a UE, an MS, or the like. In the embodiment of the present application, a 5G NR network architecture is taken as an example for description.
The following describes in detail how the terminal device performs the process of sending uplink transmission in a cluster manner with reference to the drawings.
Example one
Fig. 3 is a flowchart illustrating a communication method according to an embodiment of the present application, where the method may include the following steps.
Step 301, the network device determines at least one piece of scheduling information, where the at least one piece of scheduling information is used to indicate time-frequency resource information of at least one uplink transmission scheduled in a first scheduling period.
The scheduling information may be carried in a signaling sent by the network device to the terminal device. The signaling in the embodiment of the present application may be one or more of Radio Resource Control (RRC) signaling, Medium Access Control (MAC) Control Element (CE), or physical layer signaling, where the physical layer signaling may be Downlink Control Information (DCI).
Wherein the uplink transmission scheduled by the at least one piece of scheduling information satisfies at least one of a first condition and a second condition:
the first condition is that: the time interval between the time domain starting position of the first scheduling cycle and the time domain ending position of the last uplink transmission of the previous scheduling cycle is more than or equal to a first time threshold, or the time interval between the time domain starting position of the first scheduling cycle and the time domain ending position of the last uplink transmission of the previous scheduling cycle is more than the first time threshold. It should be noted that the time domain start position may refer to a start position of a time domain start symbol, the time domain end position refers to an end position of a time domain end symbol, and the symbol may refer to an occupied Orthogonal Frequency Division Multiplexing (OFDM) symbol.
Exemplarily, as shown in fig. 4A, it is assumed that the first scheduling period refers to a period P between T1 and T3 in fig. 4A, the time domain start position of the first scheduling period is T1, the time domain end position of the last uplink transmission of the previous scheduling period is T0, and the interval duration T1 between T0 and T1 is greater than or equal to the first duration threshold T0.
The second condition is that: the time interval between the time domain end position of the last uplink transmission in the at least one uplink transmission scheduled by the first scheduling period and the time domain start position of the next scheduling period is greater than or equal to the first time threshold, or the time interval between the time domain end position of the last uplink transmission in the at least one uplink transmission scheduled by the first scheduling period and the time domain start position of the next scheduling period is greater than the first time threshold. And not scheduling the uplink transmission of the terminal equipment in the interval duration.
Illustratively, as shown in fig. 4A, the time domain end position of the last uplink transmission in the at least one uplink transmission scheduled by the first scheduling period is T2, the time domain start position of the next scheduling period is T3, and the interval duration T2 between T2 and T3 is greater than or equal to the first duration threshold T0.
It should be noted that, before the network device performs step 301, the network device may further send at least one higher layer signaling to the terminal device, where the at least one higher layer signaling may be used to configure the size of the scheduling period (e.g., period P shown in fig. 4A), the first duration threshold (e.g., T0 shown in fig. 4A), and the second duration threshold (e.g., T0 shown in fig. 4C) μ ) The first time threshold is used to indicate the time required for switching the center frequency, etc. Wherein the first duration threshold is related to at least one of: the time length required for switching the position of the center frequency of the uplink transmission, the time length required for switching the data sampling rate of the uplink transmission, or the preparation time length required for sending the uplink transmission by the terminal equipment. Wherein the second duration threshold is related to at least one of: the terminal equipment analyzes the reference time length required by the PDCCH, the time length required by the position switching of the center frequency of the uplink transmission, the time length required by the bandwidth switching of the center frequency of the uplink transmission, or the preparation time length required by the sending of the uplink transmission of the terminal equipment. Typically, the second duration threshold is greater than or equal to the first duration threshold, or the second duration threshold is greater than the first duration threshold. That is to say, the second duration threshold is based on the first duration threshold, and the reference duration required for the terminal device to analyze the PDCCH needs to be increasedIt should be noted that the second duration threshold and the first duration threshold may be the same threshold. It should be noted that, the network device may send a high-level signaling, such as an RRC signaling, to the terminal device once, and configure the period P, the first duration threshold, and the second duration threshold in the high-level signaling; or, the network device may also send a plurality of times of high layer signaling, for example, RRC signaling, to the terminal device, where the high layer signaling sent at different times respectively configures the period P, the first duration threshold, and the second duration threshold.
Step 302, the network device sends the at least one piece of scheduling information to the terminal device.
Step 303, the terminal device receives the at least one piece of scheduling information.
Step 304, the terminal device determines a maximum frequency and a minimum frequency of the at least one uplink transmission scheduled in the first scheduling period in the frequency domain, and determines at least one first uplink transmission parameter in the first scheduling period according to the maximum frequency and the minimum frequency, where the transmission parameter includes at least one of a center frequency and a data sampling rate.
Specifically, the terminal device may determine the center frequency and the data sampling rate in any one of the following manners.
In the first mode, the terminal device determines the maximum frequency and the minimum frequency of at least one uplink transmission scheduled in the first scheduling period in the frequency domain, and then the terminal device determines the center frequency of at least one uplink transmission in the first scheduling period according to the maximum frequency and the minimum frequency.
Illustratively, continuing with FIG. 4A, assume that the first scheduling period refers to the period P between t1 and t3 in FIG. 4A, and the maximum frequency of three uplink transmissions scheduled by the first scheduling period is f H The minimum frequency of the three uplink transmissions scheduled by the first scheduling period is f L Thus the terminal device is according to f H And f L Determining the center frequency of three uplink transmissions in the scheduling period as (f) H -f L ) The terminal equipment can determine that the data sampling rate of three uplink transmissions in the scheduling period is greater than or equal to (f) H -f L ) E.g. data sampling rate of 30.72 x 2 n MHz, wherein n is of satisfying 30.72 x 2 n ≥(f H -f L ) Is the smallest integer of (a).
In a second way, in a possible embodiment, if the terminal device further receives scheduling information of at least one downlink transmission from the network device, the scheduling information of the at least one downlink transmission is used to indicate frequency domain resource information of the at least one downlink transmission scheduled in the first scheduling period. Since the center frequency of the uplink transmission is related not only to the scheduling information of the uplink transmission but also to the scheduling information of the downlink transmission in the TDD mode, the terminal device may determine the center frequency of at least one uplink transmission in the first scheduling period according to the maximum frequency and the minimum frequency of at least one first uplink transmission scheduled in the first scheduling period in the frequency domain, and the maximum frequency and the minimum frequency of at least one downlink transmission scheduled in the first scheduling period in the frequency domain.
Exemplarily, as shown in fig. 4B, assuming that the first scheduling period refers to a period P between t1 and t3, and one black transport block shown in fig. 4B corresponds to downlink transmission, the maximum frequency of the downlink transmission is f H ', and the minimum frequency of the downlink transmission is f L ' since the maximum frequency of three uplink transmissions scheduled by the first scheduling period is known to be f H The minimum frequency of the three uplink transmissions scheduled by the first scheduling period is f L Thus the terminal device is according to f H ' and f L Determining the center frequency of three uplink transmissions in the scheduling period as (f) H ’-f L ) And/2, determining that the data sampling rate of three uplink transmissions in the scheduling period is greater than or equal to (f) H ’-f L ) E.g. 30.72 x 2 n MHz, wherein n is 30.72 x 2 n ≥(f H ’-f L ) The smallest integer of (c).
Step 305, the terminal device sends at least one uplink transmission in the first scheduling period by using the transmission parameter in the first scheduling period.
In other words, the uplink transmission in the first scheduling period is regarded as a cluster of uplink transmissions by the terminal device, and the terminal device transmits the cluster of uplink transmissions by using the center frequency. Similarly, the uplink transmission in each scheduling period is regarded as a cluster of uplink transmissions by the terminal device, and the terminal device sends each cluster of uplink transmissions by using the corresponding center frequency and data sampling rate.
Step 306, the network device receives the at least one first uplink transmission.
In the above embodiment, for an active BWP or an active carrier, the terminal device does not transmit all uplink transmissions with a fixed center frequency and a fixed data sampling rate, and uplink transmissions in different scheduling periods may transmit with different center frequencies and different data sampling rates, which is beneficial to saving power consumption on the terminal device side, thereby improving performance of the terminal device.
In a possible embodiment, based on the foregoing method embodiment, in step 302, when the network device sends the at least one piece of scheduling information for uplink transmission to the terminal device, the network device determines that an interval duration between a time domain end position of a time domain resource carrying the at least one piece of scheduling information for uplink transmission and a first time domain position is greater than a second duration threshold, where the first time domain position is a time domain start position of a first scheduling period.
For example, as shown in fig. 4C, assuming that the first scheduling period refers to a period P between T1 and T3, a time domain start position of the first scheduling period is T1, and a time domain end position of a time domain resource carrying the at least one uplink transmission scheduling information is T4, an interval duration T3 between T4 and T1 is greater than or equal to the second duration threshold T3 μ 。
In another possible embodiment, based on the foregoing method embodiment, in step 302, when the network device sends the scheduling information of the at least one uplink transmission to the terminal device, the time domain end position of the time domain resource that carries the scheduling information of the at least one uplink transmission may have one or more pieces of scheduling information is after the first time domain position. The L (L > 0) uplink transmissions scheduled by the one or more scheduling information also need to satisfy at least one condition for the terminal device to determine the transmission parameter of the at least one uplink transmission in the first scheduling period according to the above method. The specific conditions include:
the first condition is as follows: the frequency domain ranges of the L uplink transmissions fall between the maximum and minimum frequencies determined by the above method. It should be noted that the frequency domain range here includes two end values of the maximum frequency and the minimum frequency.
And a second condition: the interval duration between the time domain end position of the L uplink transmissions and the earliest position of the next uplink transmission group in the time domain adjacent to the time domain still needs to be greater than or equal to a first duration threshold T0; or, the interval duration between the time domain end position of the L uplink transmissions and the earliest position of the time domain adjacent last uplink transmission group in the time domain still needs to be greater than the first duration threshold T0.
Illustratively, as shown in fig. 4D, it is assumed that the first scheduling period refers to a period P between t1 and t3, the time domain start position of the first scheduling period is t1, the time domain end position of the time domain resource of the scheduling information of the fourth uplink transmission (black-filled uplink transport block in fig. 4C) in the period is t5, t5 may be after t1, but the frequency domain range of the fourth uplink transmission falls within [ f H ,f L ]And the interval duration T4 between the time domain end positions T6 and T3 of the fourth transmission still needs to be greater than or equal to T0.
In a possible implementation, when the first uplink transmission in the first scheduling period is divided into at least two portions adjacent in time domain, and the uplink transmission of any two portions adjacent in time domain satisfies the following setting condition, the terminal device may determine the transmission parameter of the uplink transmission of each portion according to the above method, that is, at least one of the center frequency and the data sampling rate, and then the uplink transmissions of different portions may use different transmission parameters for transmission. Specifically, for any two adjacent time domain first part uplink transmissions and second part uplink transmissions, the interval duration between the time domain starting position of the second part uplink transmissions and the time domain ending position of the first part uplink transmissions is greater than or equal to a first time threshold, or the interval duration between the time domain starting position of the second part uplink transmissions and the time domain ending position of the first part uplink transmissions is greater than the first time threshold. The terminal equipment determines at least one of a first central frequency and a first data sampling rate of a first part of uplink transmission and at least one of a second central frequency and a second data sampling rate of a second part of uplink transmission in a first scheduling period according to frequency domain resource information of at least one uplink transmission scheduled in the first scheduling period, then the terminal equipment sends the first part of uplink transmission by adopting the first central frequency or the first data sampling rate in the first scheduling period, and sends the second part of uplink transmission by adopting the second central frequency or the second data sampling rate in the first scheduling period.
It should be noted that the uplink transmission in one scheduling period may be divided into three parts or more, which is not limited in this embodiment of the present application. Compared with the foregoing method embodiment, in the foregoing method embodiment, assuming that the data sampling rate B0 of the uplink transmission in the first scheduling period is the data sampling rate B1 and the data sampling rate B2 corresponding to the two partial uplink transmissions determined by the method are B1 and B2, where B1 and B2 may be all or partially smaller than B0, and the smaller the data sampling rate is, the smaller the power consumption of the terminal device is, which may help further save the power consumption at the terminal device side, thereby improving the performance of the terminal device.
Exemplarily, as shown in fig. 4E, it is assumed that the first scheduling period refers to a period P between T1 and T3, the time domain starting position of the time domain resource of the scheduling information of the second uplink transmission (the slashed filled uplink transmission block in fig. 4E) in the period is T5, the time domain starting position of the time domain resource of the scheduling information of the third uplink transmission (the black filled uplink transmission block in fig. 4E) in the period is T6, if the interval duration T3 between T5 and T6 is greater than or equal to the first time threshold T0, the terminal device may divide the uplink transmission in the first scheduling period into two parts, wherein the first part of uplink transmission is the first two uplink transmissions, the second part of uplink transmission is the third uplink transmission, the terminal device determines the center frequency of the first part of uplink transmission to be f1, the terminal device determines the center frequency of the second part of uplink transmission to be f2, and the terminal equipment transmits the first part of uplink transmission by adopting f1 in the first scheduling period, and transmits the second part of uplink transmission by adopting f2 in the first scheduling period. The method can be helpful for further saving the power consumption of the terminal equipment side, thereby improving the performance of the terminal equipment.
Example two
Fig. 5 is a flowchart illustrating a communication method according to an embodiment of the present application, where the method may include the following steps.
Step 501, the network device sends at least one uplink transmission scheduling information to the terminal device.
The scheduling information may be carried in a signaling sent by the network device to the terminal device. The signaling may be one or more of RRC signaling, MAC CE, or physical layer signaling, where the physical layer signaling may be DCI.
Step 502, the terminal device receives the scheduling information of the at least one uplink transmission.
Step 503, the terminal device determines whether at least one of the first interval duration and the second interval duration is greater than or equal to the first duration threshold, or the terminal device determines whether at least one of the first interval duration and the second interval duration is greater than the first duration threshold, if so, the terminal device executes step 504a and step 505 a; if not, i.e. in case two, the terminal device executes 504b and 505 b.
The first interval duration is an interval duration between a time domain starting position of the first scheduling period and a time domain ending position of the last uplink transmission of the previous scheduling period. The second interval duration is an interval duration between a time domain end position of a last uplink transmission in at least one first uplink transmission scheduled by the first scheduling period and a time domain start position of a next scheduling period.
Under the first possible condition, the terminal device determines whether the first interval duration is greater than or equal to a first duration threshold, or the terminal device determines whether the first interval duration is greater than the first duration threshold.
Under the second possible condition, the terminal device determines whether the duration of the second interval is greater than or equal to the first duration threshold, or the terminal device determines whether the duration of the second interval is greater than the first duration threshold.
In a third possible case, the terminal device determines whether the first interval duration and the second interval duration are greater than or equal to a first duration threshold, or the terminal device determines whether the first interval duration and the second interval duration are greater than the first duration threshold.
For example, referring to fig. 4A, for the first possible case, if the first scheduling period is the first scheduling period, the interval duration may refer to T1, that is, the interval duration between T0 and T1, that is, the terminal device determines whether T1 is greater than or equal to T0; for the second possible case, if the first scheduling period is the last scheduling period, the interval duration may refer to T2, that is, the interval duration between T2 and T3, that is, the terminal device determines whether T2 is greater than or equal to T0; in a third possible case, if the first scheduling period is a scheduling period between the first scheduling period and the last scheduling period (except the first scheduling period and the last scheduling period), the interval duration may refer to T1 and T2, that is, the terminal device determines whether both T1 and T2 are greater than or equal to T0.
The first time threshold is used to indicate the time required for switching the center frequency. Wherein the first duration threshold is related to at least one of: the time length required for switching the position of the center frequency of the uplink transmission, the time length required for switching the data sampling rate of the uplink transmission, or the preparation time length required for sending the uplink transmission by the terminal equipment.
Situation one
Step 504a, if yes, the terminal device determines, according to the frequency domain resource information of the at least one uplink transmission scheduled in the first scheduling period, a transmission parameter of the at least one uplink transmission in the first scheduling period, where the transmission parameter includes at least one of a center frequency and a data sampling rate.
Specifically, the terminal device may determine the center frequency and the data sampling rate in any one of the following manners.
In the first mode, the terminal device determines the maximum frequency and the minimum frequency of at least one first uplink transmission scheduled in the first scheduling period in the frequency domain, and then the terminal device determines the center frequency of at least one uplink transmission in the first scheduling period according to the maximum frequency and the minimum frequency.
Illustratively, continuing with fig. 4A, assume that the first scheduling period refers to the period P between t1 and t3 in fig. 4A, and the minimum frequency of three uplink transmissions scheduled by the first scheduling period is f H The minimum frequency of the three uplink transmissions scheduled by the first scheduling period is f L Thus the terminal device is according to f H And f L Determining the center frequency of three uplink transmissions in the scheduling period as (f) H -f L ) The terminal equipment can determine that the data sampling rate of three uplink transmissions in the scheduling period is greater than or equal to (f) H -f L ) E.g. data sampling rate of 30.72 x 2 n MHz, wherein n is 30.72 x 2 n ≥(f H -f L ) Is the smallest integer of (a).
In a second mode, if the terminal device further receives at least one piece of scheduling information of downlink transmission from the network device, the at least one piece of scheduling information of downlink transmission is used to indicate frequency domain resource information of at least one piece of downlink transmission scheduled in the first scheduling period. Since the center frequency of the uplink transmission is related not only to the scheduling information of the uplink transmission but also to the scheduling information of the downlink transmission in the TDD mode, the terminal device may determine the center frequency of at least one uplink transmission in the first scheduling period according to the maximum frequency and the minimum frequency of at least one first uplink transmission scheduled in the first scheduling period in the frequency domain, and the maximum frequency and the minimum frequency of at least one downlink transmission scheduled in the first scheduling period in the frequency domain.
Illustratively, as shown in fig. 4B, assuming that the first scheduling period refers to a period P between t1 and t3 in fig. 4A, and one black transport block shown in fig. 4B corresponds to downlink transmission, the maximum frequency of the downlink transmission is f H ', and the minimum frequency of the downlink transmission is f L ' since the maximum frequency of three uplink transmissions scheduled by the first scheduling period is known to be f H The first isThe minimum frequency of three uplink transmissions scheduled by a scheduling period is f L Thus the terminal device is according to f H ' and f L Determining the center frequency of three uplink transmissions in the scheduling period as (f) H ’-f L ) 2; the terminal equipment determines that the data sampling rate of three uplink transmissions in the scheduling period is greater than or equal to (f) H ’-f L ) E.g. 30.72 x 2 n MHz, wherein n is of satisfying 30.72 x 2 n ≥(f H ’-f L ) The smallest integer of (c).
Step 505a, the terminal device sends at least one uplink transmission in the first scheduling period by using the transmission parameter in the first scheduling period.
Illustratively, in connection with FIG. 4A, the terminal device employs (f) H ’-f L ) And/2, sending the uplink transmission in the first scheduling period.
Situation two
Step 504b, if the terminal device determines that the duration of the first interval is smaller than the first duration threshold, and/or the duration of the second interval is smaller than the first duration threshold, the terminal device determines that the center frequency of at least one uplink transmission in the first scheduling period is the activated uplink BWP or the center frequency of the activated uplink carrier, and/or determines that the data sampling rate of at least one uplink transmission in the first scheduling period is the data sampling rate of the activated uplink BWP or the activated uplink carrier.
Exemplarily, in connection with fig. 4A, the center frequency of the activated uplink BWP or the activated uplink carrier is f0, and the terminal device sends the uplink transmission in the first scheduling period using f 0.
Step 505b, the terminal device sends at least one first uplink transmission in the first scheduling period by using the transmission parameter in the first scheduling period.
Step 506, the network device receives the at least one first uplink transmission.
In the embodiment of the present application, for an active BWP or an active carrier, the terminal device does not transmit all uplink transmissions with a fixed center frequency and a fixed data sampling rate, and uplink transmissions in different scheduling periods may transmit with different center frequencies and different data sampling rates, which is beneficial to saving power consumption on the terminal device side, thereby improving the performance of the terminal device.
In a possible embodiment, based on the method embodiment shown in fig. 5, in step 503, when the network device sends the at least one uplink transmission scheduling information to the terminal device, the network device further needs to determine that an interval duration between a time domain end position of the time domain resource carrying the at least one uplink transmission scheduling information and a first time domain position is greater than or equal to a second duration threshold, where the first time domain position is a time domain start position of a first scheduling period, or the network device further needs to determine that an interval duration between the time domain end position of the time domain resource carrying the at least one uplink transmission scheduling information and the first time domain position is greater than the second duration threshold. The terminal device can then calculate the transmission parameters in the manner shown in case one above.
Wherein the second duration threshold is related to at least one of: the terminal equipment analyzes the reference time length required by the PDCCH, the time length required by the position switching of the center frequency of the uploading transmission, the time length required by the data sampling rate switching of the uplink transmission, or the preparation time length required by the sending of the uplink transmission of the terminal equipment. Typically, the second duration threshold is greater than or equal to the first duration threshold. That is to say, the second duration threshold is based on the first duration threshold, and the reference duration required by the terminal device to analyze the PDCCH needs to be increased, where it should be noted that the second duration threshold and the first duration threshold may be the same threshold.
For example, as shown in fig. 4C, assuming that the first scheduling period refers to a period P between T1 and T3, a time domain start position of the first scheduling period is T1, and a time domain end position of a time domain resource carrying the scheduling information of the at least one first uplink transmission is T4, when the terminal device determines that an interval duration T3 between T4 and T1 is greater than or equal to a second duration threshold T3 μ And T1 is more than or equal to T0, and T2 is more than or equal to T0, the terminal equipment determines the center frequency according to the maximum frequency and the minimum frequency of the three uplink transmissions in the period P.
In another possible embodiment, based on the method embodiment shown in fig. 5, in step 302, when the network device sends the scheduling information of the at least one uplink transmission to the terminal device, the time domain end position of the time domain resource carrying the scheduling information of the at least one uplink transmission may have one or more pieces of scheduling information is after the first time domain position. The terminal device further needs to determine the transmission parameter of at least one uplink transmission in the first scheduling period according to the above method when it is determined that L (L > 0) uplink transmissions scheduled by the one or more scheduling information still satisfy at least one of the following conditions. The specific conditions include:
the first condition is as follows: the frequency domain ranges of the L uplink transmissions fall between the maximum and minimum frequencies determined by the above method. It should be noted that the frequency domain range here includes two end values of the maximum frequency and the minimum frequency.
And a second condition: the interval duration between the time domain end position of the L uplink transmissions and the earliest position of the time domain adjacent last uplink transmission group in the time domain still needs to be greater than or equal to the first time threshold T0.
Illustratively, as shown in fig. 4D, it is assumed that the first scheduling period refers to a period P between t1 and t3 in fig. 4A, the time domain start position of the first scheduling period is t1, the time domain end position of the time domain resource of the scheduling information of the fourth uplink transmission (black-filled uplink transport block in fig. 4C) in the period is t5, t5 may be after t1, but the frequency domain range of the fourth uplink transmission falls within [ f H ,f L ]And the interval duration T4 between the time domain end positions T6 and T3 of the fourth transmission still needs to be greater than or equal to T0.
In a possible implementation, based on the method embodiment shown in fig. 5, after step 502 is executed, the terminal device may further divide the received uplink transmission into multiple parts, where the uplink transmissions of the multiple parts need to meet the setting condition, the terminal device may determine the transmission parameter of the uplink transmission of each part according to the foregoing method, and then the terminal device may transmit the uplink transmission of the corresponding part by using different transmission parameters.
Specifically, for dividing uplink transmission in the first scheduling period into a first part of uplink transmission and a second part of uplink transmission, an interval duration between a time domain starting position of the second part of uplink transmission and a time domain ending position of the first part of uplink transmission is greater than or equal to a first time threshold, or an interval duration between a time domain starting position of the second part of uplink transmission and a time domain ending position of the first part of uplink transmission is greater than the first time threshold. The terminal equipment determines a first transmission parameter of a first part of uplink transmission in a first scheduling period according to frequency domain resource information of at least one first uplink transmission scheduled in the first scheduling period, wherein the first transmission parameter comprises at least one of a first central frequency and a first data sampling rate, and a second transmission parameter of a second part of uplink transmission, wherein the second transmission parameter comprises at least one of a second central frequency and a second data sampling rate, then the terminal equipment sends the first part of uplink transmission by using the first central frequency in the first scheduling period, and sends the second part of uplink transmission by using the second central frequency in the first scheduling period.
It should be noted that the terminal device may also divide uplink transmission in one scheduling period into three parts or more, which is not limited in this embodiment of the present application. The method is beneficial to further saving the power consumption of the terminal equipment side, thereby improving the performance of the terminal equipment.
Illustratively, as shown in fig. 4E, assuming that the first scheduling period refers to a period P between T1 and T3, the time domain starting position of the time domain resource of the scheduling information of the second uplink transmission (the uplink transmission block filled with the slash in fig. 4E) in the period is T5, the time domain starting position of the time domain resource of the scheduling information of the third uplink transmission (the uplink transmission block filled with the black in fig. 4E) in the period is T6, if the interval duration T3 between T5 and T6 is greater than or equal to the first time threshold T0, the terminal device may divide the uplink transmission in the first scheduling period into two parts, wherein the first part of uplink transmission is the first two uplink transmissions, the second part of uplink transmission is the third uplink transmission, the terminal device determines the center frequency of the first part of uplink transmission to be f1, the terminal device determines the center frequency of the second part of uplink transmission to be f2, and the terminal equipment transmits the first part of uplink transmission by adopting f1 in the first scheduling period, and transmits the second part of uplink transmission by adopting f2 in the first scheduling period. The method can be helpful for further saving the power consumption of the terminal equipment side, thereby improving the performance of the terminal equipment.
EXAMPLE III
As shown in fig. 6, if the network device does not configure the scheduling period for the terminal device, the terminal device may group uplink transmissions according to the received scheduling information, so as to send uplink transmissions of different groups using different transmission parameters. The communication method provided by the embodiment of the application can also be applied to terminal equipment, and the method can comprise the following steps.
Step 601, the network device determines at least one first scheduling information, where the at least one first scheduling information is used to indicate time-frequency resource information of M uplink transmissions.
Wherein, assuming that M uplink transmissions correspond to N uplink transmission groups, M and N are positive integers, and M is greater than or equal to N and greater than or equal to 1, the network device may determine, for any one uplink transmission group, that is, the first uplink transmission group, that the uplink transmission scheduled by the at least one piece of first scheduling information satisfies at least one of the following conditions:
the first condition is that: in two adjacent uplink transmissions in a time domain in a first uplink transmission group in the N uplink transmission groups, the interval duration between the time domain ending position of the previous uplink transmission and the time domain starting position of the next uplink transmission is less than a first time threshold.
For example, as shown in fig. 7A, assuming that the first transmission group includes two uplink transmissions between T3 and T4 in the figure, the interval time length T4 between the two uplink transmissions is smaller than the first time length threshold T0.
A second condition: the time length of the interval between the earliest position of the first uplink transmission group in the time domain and the latest position of the previous uplink transmission group adjacent to the time domain in the time domain is larger than or equal to a first time length threshold value, or the time length of the interval between the earliest position of the first uplink transmission group in the time domain and the latest position of the previous uplink transmission group adjacent to the time domain in the time domain is larger than the first time length threshold value.
Illustratively, as shown in fig. 7A, it is assumed that the first transmission group includes two uplink transmissions between T3 and T4 in the figure, the earliest position of the first uplink transmission group in the time domain is T3, the latest position of the previous uplink transmission group adjacent to the time domain in the time domain is T2, and the interval duration T3 between T2 and T3 is greater than or equal to the first time threshold T0.
A third condition: the interval duration between the latest position of the first uplink transmission group in the time domain and the earliest position of the next uplink transmission group adjacent to the time domain in the time domain is more than or equal to the first time length threshold, or the interval duration between the latest position of the first uplink transmission group in the time domain and the earliest position of the next uplink transmission group adjacent to the time domain in the time domain is more than the first time length threshold.
Illustratively, as shown in fig. 7A, it is assumed that the first transmission group includes three uplink transmissions between T0' and T0 in the figure, the latest position of the first uplink transmission group in the time domain is T0, the earliest position of the next uplink transmission group adjacent to the time domain in the time domain is T1, and the interval duration T2 between T0 and T1 is greater than or equal to the first time threshold T0.
It should be noted that, before the network device performs step 601, the network device may further send at least one higher layer signaling to the terminal device, where the at least one higher layer signaling may be used to configure a first duration threshold (e.g., T0 shown in fig. 7A), and the first duration threshold is used to indicate a duration required for the center frequency handover, and so on. Wherein the first duration threshold is related to at least one of: the time length required by position switching of the center frequency of uplink transmission, the time length required by data sampling rate switching of uplink transmission, or the time length required by preparation for sending uplink transmission by the terminal equipment.
Step 602, the network device sends the at least one first scheduling information to the terminal device.
Step 603, the terminal device receives the at least one first scheduling information.
Step 604, the terminal device determines N uplink transmission groups corresponding to the M uplink transmissions, and determines a first transmission parameter according to time-frequency resource information of uplink transmission in a first uplink transmission group of the N uplink transmission groups, where the first transmission includes at least one of a first center frequency and a first data sampling rate.
Specifically, the terminal device may determine the first transmission parameter in any one of the following manners.
In the first mode, the terminal device determines the maximum frequency and the minimum frequency of the uplink transmission in the first uplink transmission group in the frequency domain, and then the terminal device determines the first center frequency according to the maximum frequency and the minimum frequency.
Illustratively, continuing with FIG. 7A, assume that the first uplink transmission group includes two uplink transmissions between t3 and t4 in FIG. 7A, the maximum frequency of the two uplink transmissions being f H And a minimum frequency of f L Thus the terminal device is according to f H And f L Determining a first center frequency (f) corresponding to the first uplink transmission group H -f L ) 2; the terminal equipment determines that the data sampling rate of three uplink transmissions in the scheduling period is greater than or equal to (f) H -f L ) E.g. data sampling rate of 30.72 x 2 n MHz, wherein n is 30.72 x 2 n ≥(f H -f L ) Is the smallest integer of (a).
In a second mode, if the terminal device further receives at least one piece of scheduling information of downlink transmission from the network device, the at least one piece of scheduling information of downlink transmission is used to indicate U (U is a positive integer) pieces of scheduling information of downlink transmission. In the TDD mode, if there are V (positive integer of V ≦ U) downlink transmissions whose time-frequency ranges fall within the time-frequency range of the first uplink transmission group, the terminal device may determine the first center frequency corresponding to the first uplink transmission group according to the maximum frequency and the minimum frequency of the first uplink transmission group in the frequency domain, and the maximum frequency and the minimum frequency of the V downlink transmissions in the frequency domain.
Exemplarily, as shown in fig. 7B, it is assumed that the first uplink transmission group includes two uplink transmissions between t3 and t4 in the figure, and the time-frequency range of the first uplink transmission group is [ t3, t4 ]]If one black transmission block shown in fig. 7B corresponds to downlink transmission, the maximum frequency of the downlink transmission is f H ' and the minimum frequency of the downlink transmission isf L ', since the maximum frequency corresponding to the first uplink transmission group is f H The minimum frequency corresponding to the first uplink transmission group is f L Thus the terminal device is according to f H ' and f L Determining a first center frequency (f) corresponding to the first uplink transmission group H ’-f L ) 2; the terminal equipment determines that the data sampling rate of three uplink transmissions in the scheduling period is greater than or equal to (f) H ’-f L ) For example, 30.72 x 2 n MHz, wherein n is 30.72 x 2 n ≥(f H ’-f L ) Is the smallest integer of (a).
Step 605, the terminal device sends the uplink transmission in the first uplink transmission group by using the first transmission parameter.
In other words, the uplink transmission in the first uplink transmission group is regarded as a cluster of uplink transmissions by the terminal device, and the terminal device sends the cluster of uplink transmissions by using the first transmission parameter. Similarly, other uplink transmission groups are also regarded as a cluster of uplink transmissions by the terminal device, and the terminal device sends each cluster of uplink transmissions by using the transmission parameters corresponding to the uplink transmissions.
In step 606, the network device receives M uplink transmissions.
In the above embodiment, for an active BWP or an active carrier, the terminal device does not send all uplink transmissions with a fixed center frequency and a fixed data sampling rate, and different uplink transmission groups may use different center frequencies and different data sampling rates for transmission, which is beneficial to saving power consumption on the terminal device side, thereby improving the performance of the terminal device.
In a possible embodiment, based on the method embodiment, in step 601, when the network device sends the at least one piece of first scheduling information to the terminal device, the network device determines that an interval duration between a time domain end position of a time domain resource carrying the scheduling information of the uplink transmission group and a first time domain position is greater than or equal to a second duration threshold, or the network device determines that an interval duration between a time domain end position of a time domain resource carrying the scheduling information of the uplink transmission group and a first time domain position is greater than a second duration threshold, where the first time domain position is a time domain start position of the first uplink transmission group.
Wherein the second duration threshold is related to at least one of: the terminal equipment analyzes the reference time length required by the PDCCH, the time length required by the position switching of the center frequency of the uplink transmission, the time length required by the data sampling rate switching of the uplink transmission, or the preparation time length required by the sending of the uplink transmission of the terminal equipment. Typically, the second duration threshold is greater than or equal to the first duration threshold. That is to say, the second duration threshold is based on the first duration threshold, and the reference duration required by the terminal device to analyze the PDCCH needs to be increased, where it should be noted that the second duration threshold and the first duration threshold may be the same threshold.
For example, as shown in fig. 7A, assuming that the first transmission group includes two uplink transmissions between T3 and T4 in the figure, the earliest position of the first uplink transmission group in the time domain is T3, and the time domain end position of the time domain resource carrying the scheduling information of the first uplink transmission group is T5, the interval duration T5 between T5 and T3 is greater than or equal to the second duration threshold T5 μ 。
In another possible embodiment, based on the foregoing method embodiment, in step 601, when the network device sends the at least one piece of first scheduling information to the terminal device, the time domain end position of the time domain resource carrying the scheduling information of the first uplink transmission group, where there are one or more pieces of scheduling information, may be after the first time domain position. The L (L > 0) uplink transmissions scheduled by the one or more scheduling information also need to satisfy at least one of the following conditions I and II, so that the terminal device can determine the first transmission parameter corresponding to the first uplink transmission group according to the above method. The specific conditions comprise:
condition I: the frequency domain ranges of the L uplink transmissions fall between the maximum and minimum frequencies determined by the above method. It should be noted that the frequency domain range here includes two end values of the maximum frequency and the minimum frequency.
Condition II: the time duration of the interval between the time domain end position of the L uplink transmissions and the earliest position of the time domain adjacent last uplink transmission group in the time domain still needs to be greater than or equal to the first time threshold T0, or the time duration of the interval between the time domain end position of the L uplink transmissions and the earliest position of the time domain adjacent last uplink transmission group in the time domain still needs to be greater than the first time threshold T0.
Exemplarily, as shown in fig. 7C, it is assumed that the first uplink transmission group includes two uplink transmissions between t3 and t4 in the figure, the time domain start position of the first uplink transmission group is t3, the time domain end position of the time domain resource carrying the scheduling information of the first uplink transmission group is t5, t5 is after t3, and the frequency domain range of the scheduled uplink transmission falls within [ f [ H ,f L ]And the interval duration T6 between the time domain end positions T4 and T6 of the scheduled uplink transmission still needs to be greater than or equal to T0, where T6 is the time domain start position of the next uplink transmission group.
Example four
As shown in fig. 8, if the network device does not configure the scheduling period for the terminal device, the terminal device may group uplink transmissions according to the received scheduling information, so as to send uplink transmissions of different groups using different transmission parameters. The communication method provided by the embodiment of the application can also be applied to terminal equipment, and the method can comprise the following steps.
Step 801, the network device sends at least one piece of scheduling information to the terminal device.
Step 802, the terminal device receives at least one piece of scheduling information.
In step 803, when the bandwidths of all uplink transmissions scheduled by the scheduling information received within the third duration threshold are less than or equal to the first bandwidth threshold, the terminal device executes a first mode, where the first mode includes the following steps 804 to 809.
Step 804, the terminal device receives at least one first scheduling information from the network device, where the at least one first scheduling information is used to indicate time-frequency resource information of M uplink transmissions.
Step 805, the terminal device determines N uplink transmission groups corresponding to M uplink transmissions, where, assuming that M uplink transmissions correspond to N uplink transmission groups, M and N are positive integers, and M is greater than or equal to N and greater than or equal to 1, for any one uplink transmission group, that is, a first uplink transmission group, the terminal device determines whether the first uplink transmission group satisfies at least one of the following conditions a, B, and C, if so, then step 806a to step 807a are continuously executed, otherwise, that is, in case two, step 806B to step 807B are executed.
Condition a: in two adjacent uplink transmissions in a time domain in a first uplink transmission group in the N uplink transmission groups, the interval duration between the time domain ending position of the previous uplink transmission and the time domain starting position of the next uplink transmission is less than a first time threshold.
For example, as shown in fig. 7A, assuming that the first transmission group includes two uplink transmissions between T3 and T4 in the figure, the interval duration T4 between the two uplink transmissions is smaller than the first duration threshold T0.
Condition B: the time length of the interval between the earliest position of the first uplink transmission group in the time domain and the latest position of the previous uplink transmission group adjacent to the time domain in the time domain is more than or equal to a first time length threshold, or the time length of the interval between the earliest position of the first uplink transmission group in the time domain and the latest position of the previous uplink transmission group adjacent to the time domain in the time domain is more than the first time length threshold.
Illustratively, as shown in fig. 7A, it is assumed that the first transmission group includes two uplink transmissions between T3 and T4 in the figure, the earliest position of the first uplink transmission group in the time domain is T3, the latest position of the previous uplink transmission group adjacent to the time domain in the time domain is T2, and the interval duration T3 between T2 and T3 is greater than or equal to the first time threshold T0.
Condition C: the interval duration between the latest position of the first uplink transmission group in the time domain and the earliest position of the next uplink transmission group adjacent to the time domain in the time domain is greater than or equal to the first time threshold.
Illustratively, as shown in fig. 7A, it is assumed that the first transmission group includes three uplink transmissions between T0' and T0 in the figure, the latest position of the first uplink transmission group in the time domain is T0, the earliest position of the next uplink transmission group adjacent to the time domain in the time domain is T1, and the interval duration T2 between T0 and T1 is greater than or equal to the first time threshold T0.
It should be noted that, before the network device performs step 801, the network device may further send at least one higher layer signaling to the terminal device, where the at least one higher layer signaling may be used to configure a first time threshold (e.g., T0 shown in fig. 4A), and the first time threshold is used to indicate a time duration required for the center frequency handover, etc. Wherein the first duration threshold is related to at least one of: the time length required for switching the position of the center frequency of the uplink transmission, the time length required for switching the data sampling rate of the uplink transmission, or the preparation time length required for sending the uplink transmission by the terminal equipment.
Situation one
Step 806a, the terminal device determines a first transmission parameter according to time-frequency resource information of uplink transmission in a first uplink transmission group of the N uplink transmission groups, where the first transmission parameter includes at least one of a first center frequency and a first data sampling rate.
Specifically, the terminal device may determine the first center frequency and the first data sampling rate by using the first method or the second method in step 504a of the third embodiment, which is not repeated herein.
In step 807a, the terminal device sends the uplink transmission in the first uplink transmission group by using the first transmission parameter.
Situation two
Step 806b, if the terminal device does not satisfy any of the above conditions a to C, the terminal device determines that the first center frequency of the first uplink transmission group is the activated uplink BWP or the center frequency of the activated uplink carrier, and/or the terminal device determines that the first data sampling rate of the first uplink transmission group is the activated uplink BWP or the data sampling rate of the activated uplink carrier.
Exemplarily, in connection with fig. 7A, the center frequency of the activated uplink BWP or the activated uplink carrier is f0, and the terminal device sends the uplink transmission in the first scheduling period using f 0.
In step 807b, the terminal device sends the uplink transmission in the first uplink transmission group by using the first transmission parameter.
Step 808, the network device receives the uplink transmission in the first uplink transmission group.
In the embodiment of the present application, for an active BWP or an active carrier, a terminal device does not send all uplink transmissions with a fixed center frequency and a fixed data sampling rate, and different uplink transmission groups may use different center frequencies and different data sampling rates for transmission, which is beneficial to saving power consumption on the terminal device side, thereby improving the performance of the terminal device.
Optionally, in a possible embodiment, the method may perform the following steps 809 to 810:
step 809, the terminal device receives the T pieces of scheduling information.
Step 810, when the bandwidths of all uplink transmissions scheduled by the received consecutive T scheduling information are greater than a second bandwidth threshold, the terminal device switches from the first mode to execute a second mode, where the second mode is an uplink transmission scheduled by the scheduling information received after being sent by using the activated uplink BWP or the center frequency corresponding to the activated uplink carrier, and T is a positive integer.
In a possible embodiment, based on the above method embodiment, in step 806, the terminal device needs to determine whether the terminal device satisfies condition D in addition to determining whether the first uplink transmission group satisfies condition a, condition B, and condition C, that is, the terminal device determines whether any one of condition a, condition B, and condition C is satisfied, and satisfies condition D.
The first method is as follows: condition D: the network device determines that the interval duration between the time domain ending position of the time domain resource bearing the scheduling information of the first uplink transmission group and the first time domain position is larger than or equal to a second duration threshold, or the network device determines that the interval duration between the time domain ending position of the time domain resource bearing the scheduling information of the first uplink transmission group and the first time domain position is larger than the second duration threshold, wherein the first time domain position refers to the time domain starting position of the first uplink transmission group.
Wherein the second duration threshold is related to at least one of: the terminal equipment analyzes the reference time length required by the PDCCH, the time length required by the position switching of the center frequency of the uplink transmission, the time length required by the data sampling rate switching of the uplink transmission, or the preparation time length required by the sending of the uplink transmission of the terminal equipment. Typically, the second duration threshold is greater than or equal to the first duration threshold. That is to say, the second duration threshold is based on the first duration threshold, and the reference duration required by the terminal device to analyze the PDCCH needs to be increased, where it should be noted that the second duration threshold and the first duration threshold may be the same threshold.
Exemplarily, as shown in fig. 7A, assuming that the first transmission group includes two uplink transmissions between T3 and T4 in the figure, the earliest position of the first uplink transmission group in the time domain is T3, and the time domain end position of the time domain resource carrying the scheduling information of the first uplink transmission group is T5, the interval duration T5 between T5 and T3 is greater than or equal to the second duration threshold T5 μ 。
The second method comprises the following steps: the condition D is: the scheduling information carrying the first uplink transmission group may have one or more time domain end positions of the time domain resources of the scheduling information after the first time domain position. The L (L > 0) uplink transmissions scheduled by the one or more scheduling information also need to satisfy at least one of the following conditions I and II, so that the terminal device can determine the first transmission parameter corresponding to the first uplink transmission group according to the above method. The specific conditions include:
condition I: the frequency domain ranges of the L uplink transmissions fall between the maximum and minimum frequencies determined by the above method. It should be noted that the frequency domain range here includes two end values of the maximum frequency and the minimum frequency.
Condition II: the interval duration between the time domain end positions of the L uplink transmissions and the earliest position of the next uplink transmission group in the time domain adjacent to the time domain still needs to be greater than or equal to the first time threshold T0, or the interval duration between the time domain end positions of the L uplink transmissions and the earliest position of the next uplink transmission group in the time domain adjacent to the time domain still needs to be greater than the first time threshold T0.
For example, as shown in fig. 7C, it is assumed that the first uplink transmission group includes two uplink transmissions between t3 and t4 in the figure, the time domain start position of the first uplink transmission group is t3, and the scheduling information of the first uplink transmission group is carriedThe time domain end position of the time domain resource is t5, t5 is after t3, and the frequency domain range of the scheduled uplink transmission falls within [ f [ ] H ,f L ]And the interval duration T6 between the time domain end positions T4 and T6 of the scheduled uplink transmission still needs to be greater than or equal to T0, where T6 is the time domain start position of the next uplink transmission group.
For the first to fourth embodiments, it should be noted that: (1) the first embodiment and the fourth embodiment may be implemented separately in different scenarios, or may be implemented in the same scenario in combination, or different solutions involved in different embodiments may also be implemented in combination (for example, part or all of the solutions involved in the first embodiment may be implemented in combination with the third embodiment), which is not limited specifically.
(2) The step number of each flowchart described in this embodiment of the present application is only one example of an execution flow, and does not limit the execution sequence of the steps, and there is no strict execution sequence between steps that have no time sequence dependency relationship between them in this embodiment of the present application.
The above-mentioned scheme provided by the embodiment of the present application is introduced mainly from the perspective of interaction between a network device and a terminal device. It is understood that, in order to implement the above functions, the network device or the terminal device may include a corresponding hardware structure and/or software module for performing each function. Those of skill in the art will readily appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as hardware or combinations of hardware and computer software. Whether a function is performed as hardware or computer software drives hardware depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.
In the embodiment of the present application, the terminal device and the network device may be divided into the functional units according to the above method examples, for example, each functional unit may be divided corresponding to each function, or two or more functions may be integrated into one unit. The integrated unit may be implemented in the form of hardware, or may also be implemented in the form of a software functional unit.
In case of integrated units, fig. 9 shows a possible exemplary block diagram of the apparatus involved in the embodiments of the present application. As shown in fig. 9, the apparatus 900 may include: a processing unit 902 and a communication unit 903. The processing unit 902 is used for controlling and managing the operation of the apparatus 900. The communication unit 903 is used to support communication of the apparatus 900 with other devices. Optionally, the communication unit 903, also referred to as a transceiving unit, may comprise a receiving unit and/or a transmitting unit for performing receiving and transmitting operations, respectively. The apparatus 900 may further comprise a storage unit 901 for storing program codes and/or data of the apparatus 900.
The apparatus 900 may be the terminal device in any of the above embodiments, or may also be a chip disposed in the terminal device. Processing unit 902 may enable apparatus 900 to perform the actions of the terminal device in the above method examples. Alternatively, the processing unit 902 mainly performs internal actions of the terminal device in the method example, and the communication unit 903 may support communication between the apparatus 900 and the network device.
The apparatus 900 may be the network device in any of the above embodiments, or may also be a chip disposed in the network device. The processing unit 902 may enable the apparatus 900 to perform the actions of the network device in the above method examples. Alternatively, the processing unit 902 mainly performs internal actions of the network device in the method example, and the communication unit 903 may support communication between the apparatus 900 and the network device. For example, processing unit 902 may be used to perform internal actions of the network device in the method example; the communication unit 903 may be used to perform step 501 of fig. 5.
It should be understood that the division of the units in the above apparatus is only a division of logical functions, and the actual implementation may be wholly or partially integrated into one physical entity or may be physically separated. And the units in the device can be realized in the form of software called by the processing element; or can be implemented in the form of hardware; part of the units can also be realized in the form of software called by a processing element, and part of the units can be realized in the form of hardware. For example, each unit may be a processing element separately set up, or may be implemented by being integrated into a chip of the apparatus, or may be stored in a memory in the form of a program, and a function of the unit may be called and executed by a processing element of the apparatus. In addition, all or part of the units can be integrated together or can be independently realized. The processing element described herein may in turn be a processor, which may be an integrated circuit having signal processing capabilities. In the implementation process, the steps of the method or the units above may be implemented by integrated logic circuits of hardware in a processor element or in a form called by software through the processor element.
In one example, the units in any of the above apparatus may be one or more integrated circuits configured to implement the above method, for example: one or more Application Specific Integrated Circuits (ASICs), or one or more microprocessors (DSPs), or one or more Field Programmable Gate Arrays (FPGAs), or a combination of at least two of these Integrated Circuit forms. For another example, when a unit in a device may be implemented in the form of a processing element scheduler, the processing element may be a processor, such as a Central Processing Unit (CPU), or other processor capable of invoking a program. As another example, these units may be integrated together and implemented in the form of a system-on-a-chip (SOC).
The above unit for receiving is an interface circuit of the apparatus for receiving signals from other apparatuses. For example, when the device is implemented in the form of a chip, the receiving unit is an interface circuit for the chip to receive signals from other chips or devices. The above unit for transmitting is an interface circuit of the apparatus for transmitting a signal to other apparatuses. For example, when the device is implemented in the form of a chip, the transmission unit is an interface circuit for the chip to transmit a signal to other chips or devices.
Please refer to fig. 10, which is a schematic structural diagram of a terminal device according to an embodiment of the present application. It may be the terminal device in the above embodiment, for implementing the operation of the terminal device in the above embodiment. As shown in fig. 10, the terminal device includes: an antenna 1010, a radio frequency part 1020, a signal processing part 1030. The antenna 1010 is connected to the radio frequency part 1020. In the downlink direction, the rf section 1020 receives information transmitted by the network device through the antenna 1010, and transmits the information transmitted by the network device to the signal processing section 1030 for processing. In the uplink direction, the signal processing part 1030 processes the information of the terminal device and sends the information to the radio frequency part 1020, and the radio frequency part 1020 processes the information of the terminal device and sends the information to the network device through the antenna 1010.
The signal processing section 1030 may include a modem subsystem for implementing processing of each communication protocol layer of data; the system also comprises a central processing subsystem used for realizing the processing of the operating system and the application layer of the terminal equipment.
Modem subsystem may include one or more processing elements 1031, including, for example, a master CPU and other integrated circuits. The modem subsystem may also include a memory element 1032 and an interface circuit 1033. The storage element 1032 is used to store data and programs, but a program for executing the method executed by the terminal device in the above method may not be stored in the storage element 1032, but may be stored in a memory outside the modem subsystem, and the modem subsystem is loaded for use at the time of use. The interface circuit 1033 is used to communicate with other subsystems.
The modem subsystem may be implemented by a chip comprising at least one processing element for performing the steps of any of the methods performed by the terminal equipment above, and interface circuitry for communicating with other devices. In one implementation, the unit for the terminal device to implement each step in the above method may be implemented in the form of a processing element scheduler, for example, an apparatus for the terminal device includes a processing element and a storage element, and the processing element calls a program stored in the storage element to execute the method executed by the terminal device in the above method embodiment. The memory elements may be memory elements with the processing elements on the same chip, i.e. on-chip memory elements.
In another implementation, the program for performing the method performed by the terminal device in the above method may be a memory element on a different chip than the processing element, i.e. an off-chip memory element. At this time, the processing element calls or loads a program from the off-chip storage element onto the on-chip storage element to call and execute the method executed by the terminal device in the above method embodiment.
In yet another implementation, the unit of the terminal device for implementing the steps of the above method may be configured as one or more processing elements disposed on the modem subsystem, where the processing elements may be integrated circuits, for example: one or more ASICs, or one or more DSPs, or one or more FPGAs, or a combination of these types of integrated circuits. These integrated circuits may be integrated together to form a chip.
The units of the terminal device for realizing the steps of the method can be integrated together and realized in the form of SOC, and the SOC chip is used for realizing the method. At least one processing element and a storage element can be integrated in the chip, and the processing element calls the stored program of the storage element to realize the method executed by the terminal equipment; or, at least one integrated circuit may be integrated in the chip, so as to implement the method executed by the above terminal device; alternatively, the above implementation modes may be combined, the functions of the partial units are implemented in the form of a processing element calling program, and the functions of the partial units are implemented in the form of an integrated circuit.
It is seen that the above apparatus for a terminal device may comprise at least one processing element and interface circuitry, wherein the at least one processing element is configured to perform the method performed by any one of the terminal devices provided by the above method embodiments. The processing element may: namely, the method calls the program stored in the storage element to execute part or all of the steps executed by the terminal equipment; it is also possible in a second way: that is, part or all of the steps executed by the terminal device are executed by integrated logic circuits of hardware in the processor element in combination with instructions; of course, some or all of the steps performed by the terminal device may be performed in combination with the first manner and the second manner.
The processing elements herein, like those described above, may be implemented by a processor, and the functions of the processing elements may be the same as those of the processing unit described in fig. 9. Illustratively, the processing element may be a general-purpose processor, such as a CPU, and may also be one or more integrated circuits configured to implement the above methods, such as: one or more ASICs, or one or more microprocessors DSP, or one or more FPGAs, etc., or a combination of at least two of these integrated circuit forms. The memory elements may be implemented by memory, and the function of the memory elements may be the same as that of the memory cells described in fig. 9. The memory element may be implemented by a memory, and the function of the memory element may be the same as that of the memory cell described in fig. 9. The storage element may be a single memory or a combination of memories.
The terminal device shown in fig. 10 can implement the processes related to the terminal device in the method embodiments illustrated in fig. 3, 5, 6 or 8. The operations and/or functions of the modules in the terminal device shown in fig. 10 are respectively for implementing the corresponding flows in the above method embodiments. Specifically, reference may be made to the description of the above method embodiments, and the detailed description is appropriately omitted herein to avoid redundancy.
Please refer to fig. 11, which is a schematic structural diagram of a network device according to an embodiment of the present application. For implementing the operation of the network device in the above embodiments. As shown in fig. 11, the network device includes: antenna 1101, radio frequency device 1102, baseband device 1103. Antenna 1101 is connected to radio frequency device 1102. In the uplink direction, the rf device 1102 receives information sent by the terminal device through the antenna 1101, and sends the information sent by the terminal device to the baseband device 1103 for processing. In the downlink direction, the baseband device 1103 processes the information of the terminal device and sends the information to the rf device 1102, and the rf device 1102 processes the information of the terminal device and sends the processed information to the terminal device through the antenna 1101.
The baseband device 1103 may include one or more processing elements 11031, including, for example, a host CPU and other integrated circuits. In addition, the baseband device 1103 may further include a storage element 11032 and an interface 11033, where the storage element 11032 is used to store programs and data; the interface 11033 is used for exchanging information with the rf device 1102, and is, for example, a Common Public Radio Interface (CPRI). The above means for a network device may be located on the baseband apparatus 1103, for example, the above means for a network device may be a chip on the baseband apparatus 1103, the chip comprising at least one processing element and interface circuitry, wherein the processing element is configured to perform the steps of any one of the methods performed by the above network device, and the interface circuitry is configured to communicate with other devices. In one implementation, the unit of the network device for implementing the steps in the above method may be implemented in the form of a processing element scheduler, for example, an apparatus for the network device includes a processing element and a storage element, and the processing element calls a program stored in the storage element to execute the method executed by the network device in the above method embodiment. The memory elements may be memory elements on the same chip as the processing element, i.e. on-chip memory elements, or may be memory elements on a different chip than the processing element, i.e. off-chip memory elements.
In another implementation, the unit of the network device for implementing the steps of the above method may be configured as one or more processing elements, which are disposed on the baseband apparatus, where the processing elements may be integrated circuits, for example: one or more ASICs, or one or more DSPs, or one or more FPGAs, or a combination of these types of integrated circuits. These integrated circuits may be integrated together to form a chip.
The units of the network device implementing the steps of the above method may be integrated together and implemented in the form of a system-on-a-chip (SOC), for example, a baseband device including the SOC chip for implementing the above method. At least one processing element and a storage element can be integrated in the chip, and the method executed by the network equipment is realized in the form that the processing element calls the stored program of the storage element; or, at least one integrated circuit may be integrated in the chip, for implementing the method executed by the above network device; alternatively, the above implementation modes may be combined, the functions of the partial units are implemented in the form of a processing element calling program, and the functions of the partial units are implemented in the form of an integrated circuit.
It is seen that the above apparatus for a network device may comprise at least one processing element and interface circuitry, wherein the at least one processing element is configured to perform the method performed by any one of the network devices provided by the above method embodiments. The processing element may: namely, calling the program stored in the storage element to execute part or all of the steps executed by the network equipment; it is also possible in a second way: that is, some or all of the steps performed by the network device are performed by integrated logic circuitry of hardware in the processor element in combination with the instructions; of course, some or all of the steps performed by the above network device may also be performed in combination with the first manner and the second manner.
The processing elements herein, like those described above, may be implemented by a processor, and the functions of the processing elements may be the same as those of the processing unit described in fig. 10. Illustratively, the processing element may be a general-purpose processor, such as a CPU, and may also be one or more integrated circuits configured to implement the above methods, such as: one or more ASICs, or one or more microprocessors DSP, or one or more FPGAs, etc., or a combination of at least two of these integrated circuit forms. The memory element may be implemented by a memory, and the function of the memory element may be the same as that of the memory cell described in fig. 9. The memory element may be implemented by a memory, and the function of the memory element may be the same as that of the memory cell described in fig. 9. The storage element may be a single memory or a combination of memories.
The network device shown in fig. 11 can implement the processes related to the network device in the above method embodiments. The operations and/or functions of the respective modules in the network device shown in fig. 11 are respectively for implementing the corresponding flows in the above-described method embodiments. Specifically, reference may be made to the description of the above method embodiments, and the detailed description is appropriately omitted herein to avoid redundancy.
As will be appreciated by one skilled in the art, embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to the application. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present application without departing from the spirit and scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is intended to include such modifications and variations as well.

Claims (33)

1. A communication method, wherein the method is applied to a terminal device, and comprises:
receiving scheduling information of at least one first uplink transmission, wherein the scheduling information of the at least one first uplink transmission is used for indicating time-frequency resource information of the at least one first uplink transmission scheduled in a first scheduling period;
determining whether a first interval duration and/or a second interval duration is greater than or equal to a first time threshold, wherein the first interval duration is an interval duration between a time domain starting position of the first scheduling period and a time domain ending position of a last uplink transmission of a previous scheduling period, and/or the second interval duration is an interval duration between a time domain ending position of a last uplink transmission in at least one first uplink transmission scheduled by the first scheduling period and a time domain starting position of a next scheduling period;
if yes, determining at least one transmission parameter of the first uplink transmission in the first scheduling period according to the frequency domain resource information of the scheduled at least one first uplink transmission in the first scheduling period, wherein the transmission parameter comprises at least one of a center frequency and a data sampling rate;
transmitting at least one first uplink transmission in the first scheduling period by using the transmission parameter in the first scheduling period;
the scheduled time-frequency resource information of uplink transmission in the first scheduling period and the previous scheduling period corresponds to the same bandwidth part BWP; and/or the scheduled time-frequency resource information of the uplink transmission in the first scheduling period and the next scheduling period corresponds to the same BWP.
2. A communication method, wherein the method is applied to a terminal device, and comprises:
receiving scheduling information of at least one first uplink transmission, wherein the scheduling information of the at least one first uplink transmission is used for indicating time-frequency resource information of at least one first uplink transmission scheduled in a first scheduling period;
determining a maximum frequency and a minimum frequency of at least one first uplink transmission scheduled in the first scheduling period in a frequency domain;
determining at least one transmission parameter of first uplink transmission in the first scheduling period according to the maximum frequency and the minimum frequency, wherein the transmission parameter comprises at least one of a center frequency and a data sampling rate;
transmitting at least one first uplink transmission in the first scheduling period by using the transmission parameter in the first scheduling period;
wherein, the interval duration between the time domain starting position of the first scheduling cycle and the time domain ending position of the last uplink transmission of the previous scheduling cycle is greater than or equal to a first time threshold, and/or the interval duration between the time domain ending position of the last uplink transmission of at least one first uplink transmission scheduled by the first scheduling cycle and the time domain starting position of the next scheduling cycle is greater than or equal to the first time threshold;
the time-frequency resource information of the scheduled uplink transmission in the first scheduling period and the previous scheduling period corresponds to the same bandwidth part BWP; and/or the scheduled time-frequency resource information of the uplink transmission in the first scheduling period and the next scheduling period corresponds to the same BWP.
3. The method according to claim 1, wherein the determining the transmission parameter of the at least one first uplink transmission in the first scheduling period according to the frequency domain resource information of the at least one first uplink transmission scheduled in the first scheduling period comprises:
determining a maximum frequency and a minimum frequency of at least one first uplink transmission scheduled in the first scheduling period in a frequency domain;
and determining at least one transmission parameter of first uplink transmission in the first scheduling period according to the maximum frequency and the minimum frequency.
4. A method according to claim 2 or 3, characterized in that the method further comprises:
receiving scheduling information of at least one downlink transmission, where the scheduling information of at least one downlink transmission is used to indicate frequency domain resource information of at least one downlink transmission scheduled in the first scheduling period;
determining at least one transmission parameter of first uplink transmission in the first scheduling period according to the maximum frequency and the minimum frequency, further comprising:
and determining a transmission parameter of at least one first uplink transmission in the first scheduling period according to the maximum frequency and the minimum frequency of at least one first uplink transmission scheduled in the first scheduling period on the frequency domain, and the maximum frequency and the minimum frequency of at least one downlink transmission scheduled in the first scheduling period on the frequency domain.
5. The method of claim 1 or 2, wherein at least one first uplink transmission in the first scheduling period comprises a first part of uplink transmission and a second part of uplink transmission; the time interval between the time domain starting position of the second part of uplink transmission and the time domain ending position of the first part of uplink transmission is greater than or equal to the first time threshold;
determining a maximum frequency and a minimum frequency of at least one first uplink transmission in the first scheduling period in a frequency domain, including:
determining a first transmission parameter of a first part of uplink transmission and a second transmission parameter of a second part of uplink transmission in the first scheduling period according to the frequency domain resource information of at least one first uplink transmission scheduled in the first scheduling period;
transmitting at least one first uplink transmission in the first scheduling period by using the transmission parameter in the first scheduling period, including:
and sending the first part of uplink transmission by adopting the first transmission parameter in the first scheduling period, and sending the second part of uplink transmission by adopting the second transmission parameter in the first scheduling period.
6. The method of claim 1, further comprising:
when the first interval duration and/or the second interval duration is smaller than a first time threshold, determining that at least one first uplink transmission parameter in the first scheduling period is an activated uplink bandwidth part (BWP) or an activated uplink carrier transmission parameter;
and transmitting at least one first uplink transmission in the first scheduling period by using the activated uplink BWP or the transmission parameters of the activated uplink carrier in the first scheduling period.
7. The method of claim 1 or 2, further comprising:
and the interval duration between the time domain ending position of the time domain resource bearing the scheduling information of the at least one first uplink transmission and the time domain starting position of the first scheduling period is greater than or equal to a second duration threshold.
8. The method of claim 7, further comprising:
receiving at least one higher layer signaling, where the at least one higher layer signaling is used to configure at least one of the first scheduling period, the first duration threshold, and the second duration threshold.
9. The method of any of claims 2 to 8, wherein the first duration threshold is related to at least one of: the time length required for switching the position of the center frequency of the uplink transmission, the time length required for switching the data sampling rate of the uplink transmission, or the time length required for preparing the uplink transmission sent by the terminal equipment.
10. The method of claim 8, wherein the second duration threshold is related to at least one of: the terminal equipment analyzes the reference time length required by the physical downlink control channel, the position switching time length of the center frequency of uplink transmission, the data sampling rate switching time length of uplink transmission, or the preparation time length required by the sending uplink transmission of the terminal equipment.
11. A method of communication, the method being applicable to a terminal device, the terminal device being in a first mode, the first mode comprising:
receiving at least one first scheduling information, wherein the at least one first scheduling information is used for indicating time-frequency resource information of M uplink transmissions;
determining N uplink transmission groups corresponding to the M uplink transmissions, wherein M and N are positive integers, and M is more than or equal to N and is more than or equal to 1;
determining a first transmission parameter according to time-frequency resource information of uplink transmission in a first uplink transmission group of the N uplink transmission groups, wherein the first uplink transmission group comprises at least one uplink transmission, and the first transmission parameter comprises at least one of a center frequency and a data sampling rate;
sending uplink transmission in the first uplink transmission group by using the first transmission parameter;
in two adjacent uplink transmissions in the time domain in the first uplink transmission group, the interval between the time domain end position of the previous uplink transmission and the time domain start position of the next uplink transmission is less than a first time length threshold; and/or the interval duration between the earliest position of the first uplink transmission group in the time domain and the latest position of the previous uplink transmission group adjacent to the time domain in the time domain is greater than or equal to the first time length threshold, and/or the interval duration between the latest position of the first uplink transmission group in the time domain and the earliest position of the next uplink transmission group adjacent to the time domain in the time domain is greater than or equal to the first time length threshold;
the time-frequency resource information of the scheduled uplink transmission in the first uplink transmission group and the previous uplink transmission group corresponds to the same bandwidth part BWP; and/or the time-frequency resource information of the scheduled uplink transmission in the first uplink transmission group and the next uplink transmission group corresponds to the same BWP.
12. The method of claim 11, wherein determining the first transmission parameter according to the time-frequency resource information of the uplink transmission in the first uplink transmission group of the N uplink transmission groups comprises:
determining a maximum frequency and a minimum frequency of uplink transmission in the first uplink transmission group on a frequency domain;
and determining a first transmission parameter corresponding to the first uplink transmission group according to the maximum frequency and the minimum frequency.
13. The method of claim 11,
the time domain ending position of the time domain resource of the first scheduling information corresponding to the first uplink transmission group is before a first time domain position, and the interval duration between the time domain ending position of the time domain resource of the first scheduling information and the first time domain position is greater than or equal to a second duration threshold, the first scheduling information is used for indicating the time frequency resource information of uplink transmission in the first uplink transmission group, and the first time domain position is the earliest position of the first uplink transmission group in the time domain.
14. The method of claim 13,
for the first uplink transmission group, a time domain end position of a time domain resource of at least one second scheduling information is behind the first time domain position, and the at least one second scheduling information is used for indicating time frequency resource information of last L uplink transmissions in a time domain in the first uplink transmission group; the frequency domain range of the uplink transmission scheduled by the at least one second scheduling information falls between the maximum frequency and the minimum frequency of the uplink transmission in the first uplink transmission group, and L is a positive integer;
and the interval between the time domain end position of the last uplink transmission in the time domain in the first uplink transmission group and the earliest position of the next uplink transmission group adjacent to the time domain in the time domain is greater than or equal to the first time length threshold.
15. The method of claim 11, further comprising:
and receiving scheduling information within a third time threshold, and executing the first mode when the bandwidths of all uplink transmissions scheduled by the scheduling information received within the third time threshold are less than or equal to a first bandwidth threshold.
16. The method of claim 11, further comprising:
and when the bandwidth of all uplink transmissions scheduled by the received continuous T scheduling information is greater than a second bandwidth threshold, executing a second mode, wherein the second mode is the uplink transmission scheduled by the received scheduling information after the transmission parameters corresponding to the activated uplink BWP or the activated uplink carrier are adopted for transmission, and T is a positive integer.
17. The method of any of claims 11 to 16, wherein the first duration threshold is related to at least one of: the time length required for switching the position of the center frequency of the uplink transmission, the time length required for switching the data sampling rate of the uplink transmission, or the time length required for preparing the uplink transmission sent by the terminal equipment.
18. The method of claim 13, wherein the second duration threshold is related to at least one of: the terminal equipment analyzes the reference time length required by the physical downlink control channel, the position switching time length of the center frequency of uplink transmission, the data sampling rate switching time length of uplink transmission, or the preparation time length required by the sending uplink transmission of the terminal equipment.
19. A communication method, wherein the method is applied to a network device, and comprises:
determining scheduling information indicating time-frequency resource information of at least one uplink transmission scheduled in a first scheduling period, the time-frequency resource information of the at least one uplink transmission is used for determining transmission parameters of the terminal equipment for transmitting the at least one uplink transmission, and the transmission parameters comprise at least one of a center frequency and a data sampling rate, wherein, the interval duration between the time domain starting position of the first scheduling cycle and the time domain ending position of the last uplink transmission in the previous scheduling cycle is greater than or equal to a first time threshold, and/or an interval duration between a time domain ending position of a last uplink transmission in at least one uplink transmission scheduled by the first scheduling period and a time domain starting position in a next scheduling period is greater than or equal to the first time threshold, and the uplink transmission of the terminal device is not scheduled in the interval duration;
the scheduled time-frequency resource information of uplink transmission in the first scheduling period and the previous scheduling period corresponds to the same bandwidth part BWP; and/or the scheduled time-frequency resource information of the uplink transmission in the first scheduling period and the next scheduling period corresponds to the same BWP;
transmitting the scheduling information;
receiving the at least one uplink transmission.
20. The method of claim 19, further comprising:
and the interval duration between the time domain ending position of the time domain resource bearing the scheduling information and the time domain starting position of the first scheduling period is greater than or equal to a second duration threshold.
21. The method of claim 20, further comprising:
and sending at least one high-layer signaling, where the at least one high-layer signaling is used to configure at least one of the first scheduling period, the first duration threshold, and the second duration threshold.
22. The method of any one of claims 19 to 21, wherein the first duration threshold is related to at least one of: the time length required by position switching of the center frequency of uplink transmission, the time length required by switching of the data sampling rate of uplink transmission, or the time length required by sending uplink transmission by the terminal equipment.
23. The method of claim 21, wherein the second duration threshold is related to at least one of: the terminal equipment analyzes the reference time length required by the physical downlink control channel, the position switching time length of the center frequency of uplink transmission, the data sampling rate switching time length of uplink transmission, or the preparation time length required by the sending uplink transmission of the terminal equipment.
24. A communication method, wherein the method is applied to a network device, and comprises:
determining at least one first scheduling information, wherein the at least one first scheduling information is used for indicating time-frequency resource information of M uplink transmissions; the M uplink transmissions correspond to N uplink transmission groups, and time-frequency resource information of uplink transmissions in a first uplink transmission group in the N uplink transmission groups is used to determine a first transmission parameter for a terminal device to transmit uplink transmissions in the first uplink transmission group, where the first transmission parameter includes at least one of a center frequency and a data sampling rate; in two adjacent uplink transmissions in a time domain in a first uplink transmission group in the N uplink transmission groups, the interval between the time domain ending position of the previous uplink transmission and the time domain starting position of the next uplink transmission is less than a first time length threshold; and/or the interval duration between the earliest position of the first uplink transmission group in the time domain and the latest position of the previous uplink transmission group adjacent to the time domain in the time domain is greater than or equal to the first time length threshold, and/or the interval duration between the latest position of the first uplink transmission group in the time domain and the earliest position of the next uplink transmission group adjacent to the time domain in the time domain is greater than or equal to the first time length threshold;
the time-frequency resource information of the scheduled uplink transmission in the first uplink transmission group and the previous uplink transmission group corresponds to the same bandwidth part BWP; and/or the scheduled time-frequency resource information of the uplink transmission in the first uplink transmission group and the next uplink transmission group corresponds to the same BWP;
transmitting the at least one first scheduling information;
receiving the M uplink transmissions.
25. The method of claim 24,
the time domain ending position of the time domain resource of the first scheduling information corresponding to the first uplink transmission group is before a first time domain position, and the interval duration between the time domain ending position of the time domain resource of the first scheduling information and the first time domain position is greater than or equal to a second duration threshold, the first scheduling information is used for indicating the time frequency resource information of uplink transmission in the first uplink transmission group, and the first time domain position is the earliest position of the first uplink transmission group in the time domain.
26. The method of claim 25,
for the first uplink transmission group, a time domain end position of a time domain resource of at least one second scheduling information is behind the first time domain position, and the at least one second scheduling information is used for indicating time frequency resource information of last L uplink transmissions in a time domain in the first uplink transmission group; the frequency domain range of the uplink transmission scheduled by the at least one second scheduling information falls between the maximum frequency and the minimum frequency of the uplink transmission in the first uplink transmission group, and L is a positive integer;
and the interval between the time domain end position of the last uplink transmission in the time domain in the first uplink transmission group and the earliest position of the next uplink transmission group adjacent to the time domain in the time domain is greater than or equal to the first time length threshold.
27. The method of any one of claims 24 to 26, wherein the first duration threshold is related to at least one of: the time length required for switching the position of the center frequency of the uplink transmission, the time length required for switching the data sampling rate of the uplink transmission, or the time length required for preparing the uplink transmission sent by the terminal equipment.
28. The method of claim 25, wherein the second duration threshold is related to at least one of: the terminal equipment analyzes the reference time length required by the physical downlink control channel, the position switching time length of the center frequency of uplink transmission, the data sampling rate switching time length of uplink transmission, or the preparation time length required by the sending uplink transmission of the terminal equipment.
29. A communication method, wherein the method is applied to a network device, and comprises:
determining at least one piece of scheduling information, where the at least one piece of scheduling information is used to indicate time-frequency resource information of at least one uplink transmission scheduled in a first scheduling period, where the time-frequency resource information of the at least one uplink transmission is used to determine a transmission parameter for a terminal device to transmit the at least one uplink transmission, the transmission parameter includes at least one of a center frequency and a data sampling rate, and an interval duration between a time domain end position of a time domain resource carrying the scheduling information and a time domain start position of the first scheduling period is greater than or equal to a second duration threshold;
transmitting the scheduling information;
receiving the at least one uplink transmission;
the time duration of the interval between the time domain starting position of the first scheduling period and the time domain ending position of the last uplink transmission of the previous scheduling period is greater than or equal to a first time duration threshold, and/or the time duration of the interval between the time domain ending position of the last uplink transmission of at least one first uplink transmission scheduled by the first scheduling period and the time domain starting position of the next scheduling period is greater than or equal to the first time duration threshold;
the time-frequency resource information of the scheduled uplink transmission in the first scheduling period and the previous scheduling period corresponds to the same bandwidth part BWP; and/or the scheduled time-frequency resource information of the uplink transmission in the first scheduling period and the next scheduling period corresponds to the same BWP.
30. A communications device comprising at least one processor coupled to a memory, the at least one processor configured to read and execute a program stored in the memory to cause the device to perform the method of any of claims 1-10 or 11-18.
31. A communications apparatus comprising at least one processor coupled to a memory, the at least one processor configured to read and execute a program stored in the memory to cause the apparatus to perform the method of any of claims 19-23 or 24-28 or 29.
32. A chip coupled to a memory for reading and executing program instructions stored in the memory to implement the method of any one of claims 1-29.
33. A computer-readable storage medium having stored thereon computer instructions which, when executed on a computer, cause the computer to perform the method of any one of claims 1-29.
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