CN110752902A - Information transmission method, network equipment and terminal equipment - Google Patents

Information transmission method, network equipment and terminal equipment Download PDF

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Publication number
CN110752902A
CN110752902A CN201810817326.1A CN201810817326A CN110752902A CN 110752902 A CN110752902 A CN 110752902A CN 201810817326 A CN201810817326 A CN 201810817326A CN 110752902 A CN110752902 A CN 110752902A
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China
Prior art keywords
indication information
parameter indication
transmission parameter
transmission
unlicensed
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CN201810817326.1A
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CN110752902B (en
Inventor
刘显达
刘鹍鹏
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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Priority to CN201810817326.1A priority Critical patent/CN110752902B/en
Priority to PCT/CN2019/095444 priority patent/WO2020019982A1/en
Publication of CN110752902A publication Critical patent/CN110752902A/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • 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
    • H04W72/12—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

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

A method for transmitting information, a network device and a terminal device are provided. The network equipment sends first resource information and first transmission parameter indication information to the terminal equipment, wherein the first resource information is used for indicating a plurality of first authorization-free resources so as to indicate the terminal equipment that the first transmission mode is used for sending data on the plurality of first authorization-free resources, and sends second transmission parameter indication information to the terminal equipment so as to reconfigure the second transmission mode for the terminal equipment, so that the terminal equipment sends the data on the plurality of first authorization-free resources by using the second transmission mode, and the reliability of data transmission is improved.

Description

Information transmission method, network equipment and terminal equipment
Technical Field
The present application relates to the field of communications, and more particularly, to a method, a network device, and a terminal device for transmitting information.
Background
In the unlicensed transmission mechanism, a base station configures a periodic unlicensed resource for a terminal device in advance through a high-level signaling, and transmits a transmission mode (including information such as a demodulation reference signal (DMRS)) of a Physical Uplink Shared Channel (PUSCH) on the unlicensed resource, including a port of a demodulation reference signal (DMRS), a number of transmission layers, a precoding scheme, and a Modulation and Coding Scheme (MCS)). When a User Equipment (UE) has a data packet, it does not need to request network resources from the base station, and can directly use pre-allocated authorization-free resources and a configured sending method to send the data packet to the base station. Meanwhile, for each (transmission block, TB), the base station may configure the number K of its repeated transmissions, which are on consecutive time units, and adopt the same transmission mode. The UE determines the size of the TB transmitted each time according to the number of Resource Elements (REs) occupied by the unlicensed resource and the configured transmission mode.
The prior art ensures the reliability of data transmission through a mechanism of repeating transmission for K times. But for the following scenario: in a first scenario, a transmitting antenna of the UE is instantaneously shielded or the UE rotates, in a second scenario, the UE generates a large interference on the time-frequency resource with the UE of the UE/the UE of the neighboring cell that is a multi-user (MU) pair, and if a fixed transmitting manner is adopted, the PUSCH repeatedly transmitted by the UE cannot be correctly received and demodulated, thereby causing a waste of network resources and reducing the efficiency of data transmission. Therefore, a scheme for improving the reliability of data transmission is required.
Disclosure of Invention
The application provides an information transmission method, network equipment and terminal equipment, and the second transmission parameter indication information indicates the terminal equipment to send data by using a second transmission mode, so that the reliability of data transmission is improved.
In a first aspect, a method for transmitting information is provided, including:
the method comprises the steps that network equipment sends configuration information to terminal equipment, wherein the configuration information comprises first resource information and first transmission parameter indication information, the first resource information is used for indicating a plurality of first authorization-free resources, any two first authorization-free resources adjacent to each other in a time domain are separated by X time units, each first authorization-free resource in the first authorization-free resources occupies Y time units in the time domain, and the first transmission parameter indication information is used for indicating the terminal equipment to send data on the first authorization-free resources by using a first transmission mode, wherein X is a positive integer, and Y is a positive integer;
the network device sends a first signaling to the terminal device at a first time, the first signaling includes second transmission parameter indication information, the first time is located in one of Y time units occupied by an nth first unlicensed resource, the nth first unlicensed resource belongs to the plurality of first unlicensed resources, the second transmission parameter indication information is used for indicating the terminal device to send data on at least one first unlicensed resource starting from N + K1 first unlicensed resources to use a second transmission mode, the N + K1 first unlicensed resource starting from at least one first unlicensed resource belongs to the plurality of first unlicensed resources, where N is a positive integer, and K1 is a positive integer.
In this embodiment of the present application, a network device sends a first signaling to a terminal device, where the first signaling includes second transmission parameter indication information, so that the terminal device starts to send data using a transmission mode indicated by the second transmission parameter indication information on a nearest unlicensed resource configured by the network device.
In an optional implementation, the method further includes:
the network device sends a second signaling to the terminal device at a second time, the second signaling includes third transmission parameter indication information, the second time is located in one of Y time units occupied by an mth first unlicensed resource, the mth first unlicensed resource belongs to the multiple first unlicensed resources, the third transmission parameter indication information is used for indicating the terminal device to send data on at least one first unlicensed resource started by an M + K2 first unlicensed resource to use a third transmission mode, the at least one first unlicensed resource started by the M + K2 first unlicensed resource belongs to the multiple first unlicensed resources, wherein M is a positive integer, M > N, and K2 is a positive integer.
Here, the third transmission parameter indication information sent by the network device through the second signaling may be understood as: after the second transmission parameter indication information is sent through the first signaling, the network device sends third transmission parameter indication information to the terminal device again, so that the terminal device sends data by using the transmission mode indicated by the third transmission parameter indication information after receiving the second signaling sent by the network device.
In an optional implementation manner, the configuration information further includes second resource information and fourth transmission parameter indication information, where the second resource information is used to indicate a plurality of second unlicensed resources, any two of the plurality of second unlicensed resources are separated by X 'time units in a time domain, the plurality of second unlicensed resources include Y' time units in the time domain, and the fourth transmission parameter indication information is used to indicate that the terminal device sends data on the plurality of second unlicensed resources using a fourth transmission mode;
wherein the plurality of first unlicensed resources and the plurality of second unlicensed resources occupy different time units in a time domain.
Optionally, the method further comprises:
the network device sends a third signaling to the terminal device at a third time, the third signaling includes fifth transmission parameter indication information, the third time is located in one of Y' time units occupied by a first second unlicensed resource, the first second unlicensed resource belongs to the second unlicensed resources, the second transmission parameter indication information is used for indicating the terminal device to send data on at least one second unlicensed resource starting from a + B second unlicensed resources to use a fifth transmission mode, the at least one second unlicensed resource starting from the a + B second unlicensed resources belongs to the second unlicensed resources, wherein a is a positive integer, and B is a positive integer.
Therefore, the network device can inform the terminal device in an implicit way: the transmission parameter indication information indicates to which unlicensed resource the transmission mode is. Specifically, the method comprises the following steps: if the terminal device receives the first signaling in the time unit of the first authorization-free resource, the second transmission mode indicated by the second transmission parameter indication information in the first signaling is considered to be directed to the first authorization-free resource; and if the third signaling is received in the time unit in the second unlicensed resource, the fifth transmission mode indicated by the fifth transmission parameter indication information in the third signaling is considered to be directed to the second unlicensed resource.
Optionally, the first transmission parameter indication information includes at least one of the following parameters: reference signal resource selection information, the number of transmission layers, a transmission precoding matrix, spatial transmission filtering information, antenna port information, a modulation and coding scheme MCS and a redundancy version RV;
the second transmission parameter indication information includes at least one of the parameters included in the first transmission parameter indication information.
Optionally, the configuration information is carried in radio resource control RRC signaling, and the first signaling is carried in downlink control information DCI.
In a second aspect, a method for transmitting information is provided, including:
the method comprises the steps that a terminal device receives configuration information from a network device, wherein the configuration information comprises first resource information and first transmission parameter indication information, the first resource information is used for indicating a plurality of first authorization-free resources, any two first authorization-free resources adjacent to each other in a time domain are separated by X time units, each first authorization-free resource in the plurality of first authorization-free resources occupies Y time units in the time domain, and the first transmission parameter indication information is used for indicating the terminal device to send data on the first authorization-free resources to use a first transmission mode, wherein X is a positive integer, and Y is a positive integer;
the terminal device receives a first signaling from the network device at a first time, where the first signaling includes second transmission parameter indication information, the first time is located in one of Y time units occupied by an nth first unlicensed resource, the nth first unlicensed resource belongs to the multiple first unlicensed resources, the second transmission parameter indication information is used to indicate that the terminal device sends data on at least one first unlicensed resource starting from N + K1 to use a second transmission mode, and the at least one first unlicensed resource starting from N + K1 belongs to the multiple first unlicensed resources, where N is a positive integer and K1 is a positive integer;
and the terminal equipment transmits data on at least one first authorization-free resource starting from the (N + K1) th first authorization-free resource by using the second transmission mode.
In this embodiment of the present application, the terminal device receives the first signaling from the network device, where the first signaling includes the second transmission parameter indication information, so that the terminal device starts to send data using the transmission mode indicated by the second transmission parameter indication information on the nearest one of the unlicensed resources configured by the network device.
In an optional implementation, the method further includes:
the terminal device receives a second signaling from the network device at a second time, where the second signaling includes third transmission parameter indication information, the second time is located in one of Y time units occupied by an mth first unlicensed resource, the mth first unlicensed resource belongs to the multiple first unlicensed resources, the third transmission parameter indication information is used to indicate that the terminal device sends data on at least one first unlicensed resource starting from an M + K2-th first unlicensed resource, using a third transmission mode, and the at least one first unlicensed resource starting from the M + K2-th first unlicensed resource belongs to the multiple first unlicensed resources, where M is a positive integer, M > N, and K2 is a positive integer;
and the terminal equipment transmits data on at least one first authorization-free resource starting from the M + K2 th first authorization-free resource by using a third transmission mode.
Here, the third transmission parameter indication information may be understood as: after the second transmission parameter indication information is sent through the first signaling, the network device sends third transmission parameter indication information to the terminal device again, so that the terminal device sends data by using the transmission mode indicated by the third transmission parameter indication information after receiving the second signaling sent by the network device.
In an optional implementation manner, the receiving, by the terminal device, the first signaling from the network device at the first time includes:
the terminal device detects the first signaling only in Y time units occupied by at least one first authorization-free resource in the plurality of first authorization-free resources, and receives the second transmission parameter indication information from the network device at the first time in the Y time units occupied by the Nth first authorization-free resource.
Therefore, the terminal device may not detect the time unit outside the Y time units occupied by the first license-exempt resource, and thus may reduce overhead.
In an optional implementation manner, the configuration information further includes second resource information and fourth transmission parameter indication information, where the second resource information is used to indicate a plurality of second unlicensed resources, any two of the plurality of second unlicensed resources are separated by X 'time units in a time domain, the plurality of second unlicensed resources include Y' time units in the time domain, and the fourth transmission parameter indication information is used to indicate that the terminal device sends data on the plurality of second unlicensed resources using a fourth transmission mode;
wherein the plurality of first unlicensed resources and the plurality of second unlicensed resources occupy different time units in a time domain.
Optionally, the first transmission parameter indication information includes at least one of the following fields: reference signal resource selection information, the number of transmission layers, a transmission precoding matrix, spatial transmission filtering information, antenna port information, a modulation and coding scheme MCS and a redundancy version RV;
the second transmission parameter indication information includes at least one of fields of the first transmission mode.
Optionally, the configuration information is carried in radio resource control RRC signaling, and the first signaling is carried in downlink control information DCI.
In a third aspect, a method for transmitting information is provided, including:
the method comprises the steps that a network device sends first resource information and K pieces of first transmission parameter indication information to a terminal device, wherein the first resource information is used for indicating G pieces of first authorization-free resources, any two pieces of first authorization-free resources adjacent to each other in a time domain are separated by X time units, each first authorization-free resource in the G pieces of first authorization-free resources occupies Y time units in the time domain, and each piece of first transmission parameter indication information in the K pieces of first transmission parameter indication information is used for indicating the terminal device to send data on the first authorization-free resources to use a first transmission mode, wherein K is an integer larger than 1, G is an integer larger than 1, X is a positive integer, and Y is a positive integer;
the network equipment receives an uplink reference signal at the Nth moment;
and the network equipment receives data in an L-th first authorization-free resource which is nearest after the nth + M moment by adopting a transmission mode indicated by kth first transmission parameter indication information, wherein the kth first transmission parameter indication information is determined according to the uplink reference signal received at the nth moment, and K belongs to [1, K ], and L belongs to [1, G ].
In the embodiment of the application, the network device determines the kth first transmission parameter indication information based on the uplink reference signal received at the nth time by using the K first transmission parameter indication information for the terminal device, so that the data is received in the transmission mode indicated by the kth first transmission parameter indication information on the L-th first unlicensed resource closest to the nth + M time, which is favorable for improving the reliability of data transmission.
In an optional implementation manner, the first transmission parameter indication information includes at least one of the following parameters: reference signal resource selection information, the number of transmission layers, a transmission precoding matrix, spatial transmission filtering information and antenna port information;
the method further comprises the following steps: the network device sends H pieces of second transmission parameter indication information to the terminal device, wherein each piece of second transmission parameter indication information in the H pieces of second transmission parameter indication information is used for indicating one or more of the following parameters: modulation and coding scheme MCS, redundancy version RV;
the method for receiving, by the network device, data on an lth first unlicensed resource after the nth + M time by using the transmission mode indicated by the kth first transmission parameter indication information includes:
and the network device receives data on the L-th first license-exempt resource after the N + M time by adopting the transmission mode indicated by the k-th first transmission parameter indication information and the parameter indicated by the H-th second transmission parameter indication information, wherein the H-th second transmission parameter indication information is determined according to the uplink reference signal received at the N time, and H belongs to [1, H ].
Therefore, the network device may send H pieces of second transmission parameter indication information to the terminal device, and determine an H-th piece of second transmission parameter indication information from the H pieces of second transmission parameter indication information, so as to receive data based on the transmission mode indicated by the k-th piece of first transmission parameter indication information and the parameter indicated by the H-th piece of second transmission parameter indication information.
In an optional implementation, the method further includes:
the network device sends J pieces of third transmission parameter indication information to the terminal device, wherein each piece of the J pieces of third transmission parameter indication information is used for indicating at least one piece of first transmission parameter indication information and one piece of second transmission parameter indication information associated with the at least one piece of first transmission parameter indication information, or each piece of the J pieces of third transmission parameter indication information is used for indicating one piece of first transmission parameter indication information and at least one piece of second transmission parameter indication information associated with the one piece of first transmission parameter indication information;
the network device determines, according to the uplink reference signal received at the nth time, jth third transmission parameter indication information, where the jth third transmission parameter indication information is used to indicate that the kth first transmission parameter indication information is associated with the ith second transmission parameter indication information, where the ith second transmission parameter indication information or the kth first transmission parameter indication information is determined according to the jth third transmission parameter indication information, and J ∈ [1, J ].
Here, the first transmission parameter indication information and the second transmission parameter indication information have an association relationship. The network device may send J pieces of third transmission instruction information to the terminal device, and determine J pieces of third transmission parameter instruction information in the J pieces of third transmission instruction information, so that the J pieces of third transmission parameter instruction information are used to indicate, when receiving data: the kth first transmission parameter indication information and the h second transmission parameter indication information.
In an optional implementation manner, each of the K pieces of first transmission parameter indication information includes transmission layer number indication information, where the transmission layer numbers indicated by the transmission layer number indication information in each piece of first transmission parameter indication information are different from each other.
In a fourth aspect, a method of transmitting information is provided, including:
a terminal device receives first resource information and K first transmission parameter indication information from a network device, wherein the first resource information is used for indicating G first authorization-free resources, any two first authorization-free resources adjacent to each other in a time domain are separated by X time units, each first authorization-free resource in the G first authorization-free resources occupies Y time units in the time domain, and each first transmission parameter indication information in the K first transmission parameter indication information is used for indicating the terminal device to transmit data on the first authorization-free resources to use a first transmission mode, wherein K is an integer greater than 1, G is an integer greater than 1, X is a positive integer, and Y is a positive integer;
the terminal equipment receives a downlink reference signal at a time P;
and the terminal equipment transmits data on the nearest Lth first authorization-free resource after the time P + M by adopting a transmission mode indicated by the kth first transmission parameter indication information, wherein the kth first transmission parameter indication information is determined according to the downlink reference signal received at the time P, and K belongs to [1, K ], and L belongs to [1, G ].
In the embodiment of the application, the terminal device receives K pieces of first transmission parameter indication information sent by the network device, and determines the kth piece of first transmission parameter indication information based on the downlink reference signal received at the pth time, so that the data is received on the nearest lth first unlicensed resource after the pth + M time by using the transmission mode indicated by the kth piece of first transmission parameter indication information, which is favorable for improving the reliability of data transmission.
In an optional implementation manner, the first transmission parameter indication information includes at least one of the following parameters: reference signal resource selection information, the number of transmission layers, a transmission precoding matrix, spatial transmission filtering information and antenna port information;
the method further comprises the following steps:
the terminal device receives H pieces of second transmission parameter indication information from the network device, wherein each piece of second transmission parameter indication information in the H pieces of second transmission parameter indication information is used for indicating one or more of the following parameters: modulation and coding scheme MCS, redundancy version RV;
the method for sending data by the terminal device on the lth first unlicensed resource after the P + M time by using the transmission mode indicated by the kth first transmission parameter indication information includes:
and the terminal equipment transmits data on the L-th first authorization-free resource after the P + M time by adopting the transmission mode indicated by the k-th first transmission parameter indication information and the parameter indicated by the H-th second transmission parameter indication information, wherein the H-th second transmission parameter indication information is determined according to the downlink reference signal received at the N time, and H belongs to [1, H ].
Therefore, the terminal device receives the H pieces of second transmission parameter indication information sent by the network device, and determines the H-th piece of second transmission parameter indication information from the H pieces of second transmission parameter indication information, so as to receive data based on the transmission mode indicated by the k-th piece of first transmission parameter indication information and the parameter indicated by the H-th piece of second transmission parameter indication information.
In an optional implementation, the method further includes:
the terminal device receives J pieces of third transmission parameter indication information from the network device, wherein each piece of the J pieces of third transmission parameter indication information is used for indicating one piece of first transmission parameter indication information and second transmission parameter indication information associated with the one piece of first transmission parameter indication information, or each piece of the J pieces of third transmission parameter indication information is used for indicating one piece of first transmission parameter indication information and at least one piece of second transmission parameter indication information associated with the one piece of first transmission parameter indication information;
the terminal device determines jth third transmission parameter indication information according to the downlink reference signal received at the pth time, where the jth third transmission parameter indication information is used to indicate that the kth first transmission parameter indication information is associated with the ith second transmission parameter indication information, where the ith second transmission parameter indication information or the kth first transmission parameter indication information is determined according to the jth third transmission parameter indication information, and J belongs to [1, J ].
Therefore, the first transmission parameter indication information and the second transmission parameter indication information have an association relationship. The terminal device determines jth third transmission parameter indication information according to J third transmission indication information by receiving J third transmission indication information sent by the network device, so that the jth third transmission parameter indication information is used for indicating when data is sent: the kth first transmission parameter indication information and the h second transmission parameter indication information.
In an optional implementation manner, each of the K pieces of first transmission parameter indication information includes transmission layer number indication information, where the transmission layer numbers indicated by the transmission layer number indication information in each piece of first transmission parameter indication information are different from each other.
In a fifth aspect, a communication apparatus is provided, which may be an apparatus for a network device, or may be a chip or a circuit, and is configured to perform the method in the first aspect or any possible implementation manner of the first aspect. Specifically, the communication device may be implemented by hardware, or may be implemented by hardware executing corresponding software.
In some possible implementations, the communication device includes means for performing the method of the first aspect or any possible implementation of the first aspect.
In some possible implementations, the communication device includes: a processor and a memory; the memory is configured to store instructions, and when the communication apparatus is operated, the processor executes the instructions stored in the memory to enable the communication apparatus to perform the communication method in the first aspect or any implementation method of the first aspect. It should be noted that the memory may be integrated into the processor or may be independent from the processor.
In some possible implementations, the communication device includes a processor, which is configured to couple with a memory, read instructions in the memory, and execute the method for transmitting information in any of the above-mentioned first aspect or the implementation methods of the first aspect according to the instructions.
A sixth aspect provides a communication apparatus, which is a terminal device and may also be a chip or a circuit, for performing the method of the second aspect or any possible implementation manner of the second aspect. Specifically, the communication device may be implemented by hardware, or may be implemented by hardware executing corresponding software.
In some possible implementations, the communication device includes means for performing the method of the second aspect or any possible implementation of the second aspect.
In some possible implementations, the communication device includes: a processor and a memory; the memory is configured to store instructions, and when the communication apparatus is operated, the processor executes the instructions stored in the memory to enable the communication apparatus to perform the communication method in any implementation method of the second aspect or the second aspect. It should be noted that the memory may be integrated into the processor or may be independent from the processor.
In some possible implementations, the communication device includes a processor, which is configured to couple with a memory, read instructions in the memory, and execute the method for transmitting information in any implementation method of the second aspect or the second aspect according to the instructions.
In a seventh aspect, a communication apparatus is provided, which may be an apparatus for a network device, and may also be a chip or a circuit, and is configured to perform the method in the third aspect or any possible implementation manner of the third aspect. Specifically, the communication device may be implemented by hardware, or may be implemented by hardware executing corresponding software.
In some possible implementations, the communication device includes means for performing the method of the third aspect or any possible implementation of the third aspect.
In some possible implementations, the communication device includes: a processor and a memory; the memory is configured to store instructions, and when the communication apparatus is operated, the processor executes the instructions stored in the memory to cause the communication apparatus to perform a communication method in any implementation method of the third aspect or the third aspect. It should be noted that the memory may be integrated into the processor or may be independent from the processor.
In some possible implementations, the communication device includes a processor, which is configured to couple with a memory, and read instructions in the memory and execute the method for transmitting information in any implementation method of the third aspect or the third aspect according to the instructions.
In an eighth aspect, a communication device is provided, which may be a device for a terminal equipment, or may be a chip or a circuit, and is configured to perform the method in the fourth aspect or any possible implementation manner of the fourth aspect. Specifically, the communication device may be implemented by hardware, or may be implemented by hardware executing corresponding software.
In some possible implementations, the communication device includes means for performing the method of the fourth aspect or any possible implementation of the fourth aspect.
In some possible implementations, the communication device includes: a processor and a memory; the memory is configured to store instructions, and when the communication apparatus is running, the processor executes the instructions stored in the memory to enable the communication apparatus to perform the communication method in any implementation method of the fourth aspect or the fourth aspect. It should be noted that the memory may be integrated into the processor or may be independent from the processor.
In some possible implementations, the communication device includes a processor, which is configured to couple with a memory, read instructions in the memory, and execute the method for transmitting information in any implementation method of the fourth aspect or the fourth aspect according to the instructions.
In a ninth aspect, there is provided a computer-readable storage medium storing a program for causing a communication apparatus to execute any of the above aspects, and any of its various implementations, a method of transmitting information.
In a tenth aspect, the present application also provides a computer program product containing instructions which, when run on a computer, cause the computer to perform a method of transmitting information according to any of the above aspects.
In an eleventh aspect, the present application further provides a system, where the system includes a network device, and the network device is configured to perform the steps performed by the network device in any of the methods of the first aspect and the first aspect.
In some possible implementations, the system may further include a terminal device, and the terminal device may be configured to perform the steps performed by the terminal device in any one of the methods of the second aspect and the second aspect.
In some possible implementations, the system may further include other devices and the like that interact with the terminal device and/or the network device of the embodiments of the present application.
In a twelfth aspect, the present application further provides a system, where the system includes a network device, and the network device is configured to perform the steps performed by the network device in any one of the methods in the third aspect and the fourth aspect.
In some possible implementations, the system may further include a terminal device, and the terminal device may be configured to perform the steps performed by the terminal device in any one of the methods of the fourth aspect and the fourth aspect.
In some possible implementations, the system may further include other devices and the like that interact with the terminal device and/or the network device of the embodiments of the present application.
In a thirteenth aspect, a chip system is provided, which includes a processor connected to a memory, and the processor is configured to call and execute a computer program from the memory, so that a communication device in which the chip system is installed executes any one of the above aspects and possible implementation methods. The memory may be located inside the system-on-chip or outside the system-on-chip.
Drawings
Fig. 1 is an architecture diagram of a mobile communication system to which an embodiment of the present application is applied.
Fig. 2 is a schematic interaction diagram of a method of transmitting information according to an embodiment of the application.
Fig. 3 is a diagram illustrating an example of an unlicensed resource according to an embodiment of the present application.
Fig. 4 is a diagram illustrating another example of an unlicensed resource according to an embodiment of the present application.
Fig. 5 is a diagram illustrating yet another example of an unlicensed resource according to an embodiment of the present application.
FIG. 6 is a schematic diagram of an example according to an embodiment of the present application.
Fig. 7 is a schematic interaction diagram of a method of transferring information according to another embodiment of the present application.
Fig. 8 is a schematic block diagram of a network device according to an embodiment of the present application.
Fig. 9 is a schematic structural diagram of a network device according to an embodiment of the present application.
Fig. 10 is a schematic block diagram of a terminal device according to an embodiment of the present application.
Fig. 11 is a schematic configuration diagram of a terminal device according to another embodiment of the present application.
Fig. 12 is a schematic block diagram of a network device according to another embodiment of the present application.
Fig. 13 is a schematic block diagram of a network device according to another embodiment of the present application.
Fig. 14 is a schematic block diagram of a terminal device according to another embodiment of the present application.
Fig. 15 is a schematic configuration diagram of a terminal device according to another embodiment of the present application.
Fig. 16 is a schematic block diagram of a communication device provided in an embodiment of the present application.
Fig. 17 is another schematic block diagram of a communication device provided in an embodiment of the present application.
Fig. 18 is a further schematic block diagram of a communication device according to an embodiment of the present application.
Detailed Description
The technical solution in the present application will be described below with reference to the accompanying drawings.
In the embodiments of the present application, "a plurality" may be understood as "at least two"; "plurality" is to be understood as "at least two".
The technical scheme of the embodiment of the application can be applied to various communication systems, for example: a global system for mobile communications (GSM) system, a Code Division Multiple Access (CDMA) system, a Wideband Code Division Multiple Access (WCDMA) system, a General Packet Radio Service (GPRS), a long term evolution (long term evolution, LTE) system, a LTE Frequency Division Duplex (FDD) system, a LTE Time Division Duplex (TDD), a Universal Mobile Telecommunications System (UMTS), a Worldwide Interoperability for Microwave Access (WiMAX) communication system, a future fifth generation (5G) or New Radio (NR) system, and the like.
Fig. 1 is an architecture diagram of a mobile communication system to which an embodiment of the present application is applied. As shown in fig. 1, the mobile communication system includes a core network device 110, a radio access network device 120, and at least one terminal device (e.g., a terminal device 130 and a terminal device 140 in fig. 1). The terminal equipment is connected with the wireless access network equipment in a wireless mode, and the wireless access network equipment is connected with the core network equipment in a wireless or wired mode. The core network device and the radio access network device may be separate physical devices, or the function of the core network device and the logical function of the radio access network device may be integrated on the same physical device, or a physical device may be integrated with a part of the function of the core network device and a part of the function of the radio access network device. The terminal equipment may be fixed or mobile. It should be understood that fig. 1 is only a schematic diagram, and that other network devices, such as a wireless relay device and a wireless backhaul device (not shown in fig. 1), may also be included in the communication system. The embodiments of the present application do not limit the number of core network devices, radio access network devices, and terminal devices included in the mobile communication system.
The radio access network device (also referred to as a network device) is an access device in which a terminal device is wirelessly accessed into the mobile communication system, and may be a base station (BTS) in a global system for mobile communications GSM (global system for mobile communications) system or a code division multiple access CDMA (code division multiple access) system, a base station (NodeB, NB) in a wideband code division multiple access WCDMA system, an evolved node b (eNB, or eNodeB) in an LTE system, a wireless controller in a Cloud Radio Access Network (CRAN) scenario, or the network device may be a relay station, an access point, a vehicle-mounted device, a wearable device, a network device in a future 5G network, a network device in a future evolved PLMN network, or the like, and the embodiment of the present application is not limited.
The Terminal device may also be referred to as a Terminal, a User Equipment (UE), a Mobile Station (MS), a Mobile Terminal (MT), and the like. The terminal device may be a mobile phone (mobile phone), a tablet computer (Pad), a computer with a wireless transceiving function, a Virtual Reality (VR) terminal device, an Augmented Reality (AR) terminal device, a wireless terminal in industrial control (industrial control), a wireless terminal in unmanned 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 (transportation safety), a wireless terminal in smart city (smart city), a wireless terminal in home (smart home), and the like.
The wireless access network equipment and the terminal equipment can be deployed on land, including indoors or outdoors, and are handheld or vehicle-mounted; can also be deployed on the water surface; it may also be deployed on airborne airplanes, balloons and satellite vehicles. The embodiment of the application does not limit the application scenarios of the wireless access network device and the terminal device.
The embodiments of the present application may be applicable to downlink signal transmission, may also be applicable to uplink signal transmission, and may also be applicable to device-to-device (D2D) signal transmission. For downlink signal transmission, the sending device is a radio access network device, and the corresponding receiving device is a terminal device. For uplink signal transmission, the transmitting device is a terminal device, and the corresponding receiving device is a radio access network device. For D2D signaling, the sending device is a terminal device and the corresponding receiving device is also a terminal device. The embodiment of the present application does not limit the transmission direction of the signal.
The radio access network device and the terminal device, and the terminal device may communicate via a licensed spectrum (licensed spectrum), may communicate via an unlicensed spectrum (unlicensed spectrum), and may communicate via both the licensed spectrum and the unlicensed spectrum. The radio access network device and the terminal device may communicate with each other through a frequency spectrum of less than 6 gigahertz (GHz), may communicate through a frequency spectrum of more than 6GHz, and may communicate using both a frequency spectrum of less than 6GHz and a frequency spectrum of more than 6 GHz. The embodiments of the present application do not limit the spectrum resources used between the radio access network device and the terminal device.
In the embodiment of the application, the terminal device or the network device includes a hardware layer, an operating system layer running on the hardware layer, and an application layer running on the operating system layer. The hardware layer includes hardware such as a Central Processing Unit (CPU), a Memory Management Unit (MMU), and a memory (also referred to as a main memory). The operating system may be any one or more computer operating systems that implement business processing through processes (processes), such as a Linux operating system, a Unix operating system, an Android operating system, an iOS operating system, or a windows operating system. The application layer comprises applications such as a browser, an address list, word processing software, instant messaging software and the like. Furthermore, the embodiment of the present application does not particularly limit the specific structure of the execution main body of the method provided by the embodiment of the present application, as long as the communication can be performed according to the method provided by the embodiment of the present application by running the program recorded with the code of the method provided by the embodiment of the present application, for example, the execution main body of the method provided by the embodiment of the present application may be a terminal device or a network device, or a functional module capable of calling the program and executing the program in the terminal device or the network device.
In addition, various aspects or features of the present application may be implemented as a method, apparatus, or article of manufacture using standard programming and/or engineering techniques. The term "article of manufacture" as used herein is intended to encompass a computer program accessible from any computer-readable device, carrier, or media. For example, computer-readable media can include but are not limited to magnetic storage devices (e.g., hard disk, floppy disk, magnetic strips, etc.), optical disks (e.g., Compact Disk (CD), Digital Versatile Disk (DVD), etc.), smart cards, and flash memory devices (e.g., erasable programmable read-only memory (EPROM), card, stick, or key drive, etc.). In addition, various storage media described herein can represent one or more devices and/or other machine-readable media for storing information. The term "machine-readable medium" can include, without being limited to, wireless channels and various other media capable of storing, containing, and/or carrying instruction(s) and/or data.
The method for transmitting information according to the embodiment of the present application will be described in detail below with reference to fig. 2 to 7.
Fig. 2 shows a schematic interaction diagram of a method 200 of transferring information according to an embodiment of the application. For example, the terminal device in the method 200 may be a terminal device in fig. 1 (such as the terminal device 130 or the terminal device 140 in fig. 1), and the network device may be the radio access network device 120 in fig. 1. As shown in fig. 2, the method 200 includes:
s210, the network equipment sends configuration information to the terminal equipment. Correspondingly, the terminal device receives the configuration information from the network device.
The configuration information includes first resource information and first transmission parameter indication information, the first resource information is used for indicating a plurality of first unlicensed resources, any two of the plurality of first unlicensed resources are separated by X time units from adjacent first unlicensed resources in a time domain, each of the plurality of first unlicensed resources occupies Y time units in the time domain, the first transmission parameter indication information is used for indicating the terminal device to send data on the plurality of first unlicensed resources to use a first transmission mode, where X is a positive integer or X ═ 0, and Y is a positive integer. X ═ 0 indicates that two first grant-free resources adjacent in the time domain are contiguous in the time domain, and X >0 indicates that two first grant-free resources adjacent in the time domain are noncontiguous in the time domain.
Optionally, the configuration information is carried in Radio Resource Control (RRC) signaling. Alternatively, the configuration information may be transmitted by a broadcast signal.
It is to be understood that the plurality of first unlicensed resources described above are periodic resources.
The above-mentioned X time units may be understood as a period of the plurality of first unlicensed resources, and the Y time units may be understood as a time unit included or occupied by each first unlicensed resource in a time domain. Alternatively, the X + Y time units may be understood as a plurality of periods of the first unlicensed resource. It should be understood that the granularity of the time unit may be a Slot, millisecond (ms), subframe (subframe) or Orthogonal Frequency Division Multiplexing (OFDM) symbol, Mini-Slot (Mini-Slot), etc.
Optionally, each of the first grant-free resources includes Y consecutive time units, where each of the time units is a time unit used for uplink transmission, or each of the time units is a time unit mainly used for uplink transmission, that is, the number of OFDM symbols used for uplink transmission is greater than the number of OFDM symbols used for downlink transmission.
Specifically, the time domain positions occupied by the plurality of first unlicensed resources are notified to the terminal device through the first resource information in the RRC signaling, where the first resource information may include a period of the time domain positions occupied by the first unlicensed resources (the period may be one or more time units, such as one or more time slots, milliseconds (ms), subframes (subframes), Mini-slots (Mini-slots), or OFDM symbols, and the like, for example, when the granularity of the period is ms, the period may be configured to be 5ms, 10ms, 15ms, 20ms …, and a starting time domain (such as a starting OFDM symbol) position and a length of the occupied time domain (such as the number of OFDM symbols) of the first unlicensed resources in each time unit. Through the first resource information, the size and the position of the time unit occupied by the first unlicensed resources can be completely determined.
When the terminal equipment uses a first authorization-free resource to send certain uplink data, the uplink data can be repeatedly sent in each time unit of Y time units occupied by the first authorization-free resource; or all time units in the Y time units occupied by the first unlicensed resource are used to transmit the uplink data together, which is not limited in the present invention.
S220, the network device sends a first signaling to the terminal device at the first time. Correspondingly, the terminal device receives the first signaling from the network device at the first time.
The first signaling comprises second transmission parameter indication information, the first time is located in one of Y time units occupied by the nth first unlicensed resource, the nth first unlicensed resource belongs to the plurality of first unlicensed resources, the second transmission parameter indication information is used for indicating that the terminal device sends data to use a second transmission mode on at least one first unlicensed resource starting from the N + K1 th first unlicensed resource, the N + K1 th first unlicensed resource starts from the plurality of first unlicensed resources, wherein N is a positive integer, and K1 is a positive integer.
Optionally, the first time may be a time period or a time, which is not limited to this. The time unit occupied by the first time may be a time unit in the first unlicensed resource. That is, the time unit of the first time may be the same as the time unit of the first unlicensed resource. Optionally, the size of the first time may be the size of one or more time units, for example, when the time unit is a slot, the first time is a certain slot or a certain plurality of slots, or the size of the first time may also be one or more sub-time units, the length of the sub-time unit is less than the length of the time unit, for example, when the size of the time unit is a slot, the sub-time unit may be an OFDM symbol, or the first time may be the first 1, the first 2, or the first 3 OFDM symbols in a certain slot.
Optionally, the first transmission parameter indication information comprises at least one of the following parameters (or fields): the method comprises the following steps of transmitting layer number, a transmission precoding matrix, spatial transmission filtering information, antenna port information, a modulation and coding scheme MCS and a redundancy version RV; the second transmission parameter indication information includes at least one of the parameters included in the first transmission parameter indication information.
The transmission layer number is used for indicating the number of data streams transmitted simultaneously, and the rank characteristic of a channel is represented; the transmission pre-coding matrix is used for indicating a phase weighted value among a plurality of sending antennas of the terminal equipment when data are transmitted; the spatial transmission filtering information is used for indicating spatial beam information of transmission data or analog beam information; the antenna port information is used for indicating that different demodulation reference signal (DMRS) orthogonal ports (usually, time domain, frequency domain, and space domain orthogonal modes) are used by the paired users; the modulation and coding scheme MCS and Redundancy Version (RV) are used to indicate the modulation and coding scheme of the data bits transmitted by the terminal equipment.
Correspondingly, the first transmission mode corresponding to the first transmission parameter indication information includes: the method comprises the steps of adopting a {1,2,3,4} layer data transmission scheme, adopting different precoding matrixes to carry out phase weighting between antenna ports, adopting different sending beams, adopting Single User (SU) transmission or multi-user (MU) transmission, and adopting different modulation orders and code rate transmission.
The parameter included in the first transmission parameter indication information is used for indicating a first transmission mode, and the parameter included in the second transmission parameter indication information is used for indicating a second transmission mode.
Optionally, the first transmission mode and the second transmission mode are different. Specifically, the first transmission parameter indication information and the second transmission parameter indication information may include the same parameter types, such as the number of transmission layers, transmission precoding matrices, spatial transmission filtering information, antenna port information, modulation and coding scheme MCS, and redundancy version RV parameters, but values indicated by one or more parameters or indicated information are different, so as to ensure that the first transmission mode and the second transmission mode are different, for example, the first transmission parameter indication information includes a precoding matrix corresponding to precoding matrix #0 indicated by the precoding matrix indication information, and the second transmission parameter indication information includes a precoding matrix corresponding to precoding matrix #1 indicated by the precoding matrix indication information; or, the second transmission parameter indication information includes part of the parameter types included in the first transmission parameter indication information, for example, the first transmission parameter indication information includes the number of transmission layers, transmission precoding matrix, spatial transmission filtering information, antenna port information, modulation and coding scheme MCS, and redundancy version RV parameter, and the first transmission parameter indication information includes the number of transmission layers, transmission precoding matrix parameter, and the value indicated by one or more of the parameters or the indicated information is different, so as to ensure the difference between the first transmission mode and the second transmission mode, for example, the first transmission parameter indication information includes the precoding matrix corresponding to precoding matrix #0 indicated by the precoding matrix indication information, and the second transmission parameter indication information includes the precoding matrix corresponding to precoding matrix #1 indicated by the precoding matrix indication information, that is, the precoding matrix #0 and the precoding matrix #1 are different transmission schemes.
S230, the terminal device sends data on at least one first unlicensed resource starting from the N + K1 th first unlicensed resource by using the second transmission mode. Correspondingly, the network device receives data on at least one first unlicensed resource starting from the N + K1 th first unlicensed resource or at least one first unlicensed resource starting from the first time closest to the first time after the first time + K1' time units using the second transmission mode. Wherein K1 and K1' are positive integers. When the first time occupies a plurality of time units, the data may be received from at least one first unlicensed resource starting from a first unlicensed resource closest to the first time after the first time occupies the first time unit + K1 ', or from at least one first unlicensed resource starting from a first unlicensed resource closest to the first time after the last time occupied time unit + K1', which is not limited in the embodiments of the present application.
Specifically, the terminal device transmits data on the first unlicensed resource before N + K1 by using the first transmission scheme, that is, before the terminal device detects Downlink Control Information (DCI) indicating a data transmission scheme on the first unlicensed resource, the transmission scheme used for transmitting data on the first unlicensed resource is determined according to the first transmission scheme configured by the higher layer signaling. When the terminal device blindly detects the second transmission parameter indication information at the first time and successfully receives the second transmission parameter indication information, the effective starting time of the second transmission mode indicated by the second transmission parameter indication information is as follows: a starting time domain location of a nearest first unlicensed resource of the plurality of first unlicensed resources after the first time. That is, after receiving the second transmission parameter indication information, the terminal device starts to transmit data using the transmission mode indicated by the second transmission parameter indication information on the latest one of the first unlicensed resources configured by the network device. Further, after the validation start time, the terminal device on the first unlicensed resource will also send data in the transmission mode indicated by the second transmission parameter indication information. Compared with the prior art in which the first transmission mode is always used for transmitting data, the embodiment of the application reconfigures the second transmission mode for the terminal device through the second transmission parameter indication information, and is favorable for improving the reliability of data transmission.
Optionally, the K1 may be determined according to the processing capability of the terminal device for data transmission, and the terminal device may report the processing capability of the terminal device for data to the network device. Because the second transmission parameter indication information may include information such as MCS, RV, and the like, the terminal device needs to perform coding modulation on a Transport Block (TB) according to the second transmission parameter indication information, and processing time required by the coding modulation operation may need to be determined according to processing capability of the terminal device on data.
Optionally, the K1 may also be determined according to the demodulation and decoding capability of the terminal device on the data, and the terminal device may report the demodulation and decoding capability of the terminal device on the data to the network device. Since the demodulation and decoding of the control information by the terminal device depends on the computing power of the processor and the arithmetic unit of the terminal device, the processing time required for the demodulation and decoding operation may need to be determined according to the demodulation and decoding capability of the terminal device on the data.
Optionally, as another embodiment, if the demodulation and decoding capability of the terminal device for the data is strong enough, for example, when K1 is less than h symbols (h is a threshold value, and a value is related to the demodulation and decoding capability of the terminal device for the data), after receiving DCI for indicating a transmission mode, the terminal device may transmit the data on the current first grant-free resource by using the transmission mode indicated by the DCI, for example, by using a precoding matrix indicated by the DCI.
Optionally, the first signaling is carried in downlink control information DCI, that is, the network device may send the second transmission parameter indication information to the terminal device through DCI signaling.
Specifically, the DCI format carrying the first signaling corresponding to the second transmission parameter indication information may multiplex a DCI format indicating authorized transmission. Optionally, the DCI format indicating the grant transmission includes not only the parameter included in the first transmission parameter indication information, but also a time-frequency resource allocation parameter, where the time-frequency resource allocation parameter in the DCI indicates the frequency domain RB number and/or RB position occupied by the transmission PUSCH, the time domain slot number and/or slot position occupied by the transmission PUSCH, and the OFDM symbol number and/or position occupied by the slot. That is, the DCI for indicating the unlicensed transmission and the DCI format for indicating the authorized transmission may be the same. The DCI format refers to bit field information included in the DCI and a bit length of the DCI, that is, a field type, a number, and a bit width of the DCI for indicating the transmission method of the license-exempt resource are respectively the same as a field type, a number, and a bit width of the DCI for indicating the transmission method of the license resource, where the bit width refers to a bit number of the DCI. Since the DCI for indicating the grant transmission includes the time-frequency resource indication field (the time-frequency resource indication field is used to indicate the time-frequency resource location information sent by the PUSCH), the DCI for the unlicensed transmission multiplexing grant transmission means that the DCI can indicate to update the time-frequency resource occupied by the PUSCH for the subsequent unlicensed transmission, and the resource utilization rate of the unlicensed transmission is more flexible and efficient. Correspondingly, the terminal device determines whether the DCI is used for indicating the transmission mode on the authorization-free PUSCH or is used for indicating the transmission mode on the authorization-free PUSCH by blind detecting the DCI in a specific time unit, and determines whether the DCI is the DCI for indicating switching of the transmission mode on the authorization-free PUSCH or the time-frequency resource of the PUSCH for scheduling of the authorization transmission and indicating the corresponding transmission mode by detecting the time domain position of the DCI without newly adding a DCI format, so that the complexity of blind detection of the terminal device is reduced. Specifically, when the terminal device blindly detects that the time domain position of the DCI is within the time unit occupied by the first authorization-free resource, the terminal device determines that the DCI is a transmission mode for instructing to switch to transmit data on the first authorization-free resource; when the terminal equipment blindly detects that the time domain position of the DCI is outside the time unit occupied by the first authorization-free resource, the terminal equipment judges that the DCI is a time-frequency resource of a PUSCH for scheduling other authorization transmission and indicates a corresponding transmission mode.
In this embodiment of the application, optionally, when the first signaling is sent by using DCI, a New Data Indication (NDI) field may be carried in the DCI to indicate whether data is a first-transmitted data packet or a retransmitted data packet, for example, the NDI may indicate that the terminal device retransmits the data by using the second transmission method on at least one first unlicensed resource starting from the N + K1-th first unlicensed resource. It should be understood that, when the second signaling or the third signaling referred to hereinafter is transmitted using DCI, the NDI field may also be carried to indicate whether the data is a first transmission data packet or a retransmission data packet, which is not limited in this embodiment of the present application.
Optionally, the time units occupied by the first unlicensed resources include time units for downlink transmission and time units for uplink transmission. Specifically, for example, one or more specific time units in the time units occupied by the first unlicensed resources in the plurality of first unlicensed resources are time units for downlink transmission, and the remaining time units in the time units occupied by the first unlicensed resources are time units for uplink transmission. For example, each first grant-free resource occupies Y slots or subframes in a time domain, where 1 slot or subframe of the Y slots or subframes is used for transmission of downlink data and control signaling, and in addition, the remaining slots or subframes of the Y slots or subframes are used for uplink data transmission. As shown in fig. 3, the multiple unlicensed resources include unlicensed resource n1, unlicensed resource n2, and unlicensed resource n3, each of which includes 4 slots. Wherein, the first slot in the license-free resource n1 is used for downlink transmission, and the last three slots are used for uplink transmission; the third slot in the license-exempt resource n2 is used for downlink transmission, and the first slot, the second slot and the fourth slot are used for uplink transmission. Optionally, there is also a case where: the time units occupied by the unlicensed resource are all used for uplink transmission, for example, all 4 slots of the unlicensed resource n3 in fig. 3 are used for uplink transmission. For example, the network device may send DCI signaling using the first slot in the unlicensed resource n 1. As another example, the network device may send DCI signaling using the third slot in the unlicensed resource n 2.
For another example, when the granularity of the time unit is slot or subframe, each time unit in the time unit occupied by the first unlicensed resources includes a sub-time unit for uplink transmission and a sub-time unit for downlink transmission. For example, each first grant-free resource occupies Y slots or subframes in a time domain, where each slot or subframe of the Y slots or subframes includes at least 1 OFDM symbol for downlink control signaling transmission, and in addition, the remaining OFDM symbols in each slot or subframe are used for uplink data transmission. As shown in fig. 4, the multiple unlicensed resources include unlicensed resource n1, unlicensed resource n2, and unlicensed resource n3, each of which includes 4 slots. There are sub-time units for uplink transmission and sub-time units for downlink transmission in each slot. Alternatively, the sub time unit may be an OFDM symbol. For example, the network device may send DCI signaling using the sub-time unit of the first slot in the unlicensed resource n 1. For another example, the network device may send DCI signaling using a sub-time unit of the third slot in the unlicensed resource n 2.
For another example, when the granularity of the time unit is slot or subframe, a sub-time unit for uplink transmission and a sub-time unit for downlink transmission are included in a part of the time units occupied by the first unlicensed resources, and only a sub-time unit for uplink transmission is included in the remaining time units. For example, each first grant-free resource occupies Y slots or subframes in a time domain, where each slot or subframe of the Y1 slots or subframes includes at least 1 OFDM symbol for downlink control signaling transmission, in addition, the remaining OFDM symbols in each slot or subframe are used for uplink data transmission, and each slot or subframe of the Y2 slots or subframes only includes an OFDM symbol for uplink transmission. As shown in fig. 5, the multiple unlicensed resources include unlicensed resource n1, unlicensed resource n2, and unlicensed resource n3, each of which includes 4 slots. A sub-time unit for uplink transmission and a sub-time unit for downlink transmission exist in a first slot in the license-exempt resource n1, and only the sub-time unit for uplink transmission exists in second to fourth slots; there are sub-time units for uplink transmission and sub-time units for downlink transmission in the third slot in the unlicensed resource n2, and only sub-time units for uplink transmission are included in the first, second, and fourth slots. Alternatively, the sub time unit may be an OFDM symbol. For example, the network device may send DCI signaling using the sub-time unit of the first slot in the unlicensed resource n 1. For another example, the network device may send DCI signaling using a sub-time unit of the third slot in the unlicensed resource n 2.
Optionally, the first signaling including the second transmission parameter indication information may adopt an existing DCI format for authorized transmission, and the second transmission parameter indication information may carry a time-frequency resource indication field. For example, when all bits in a frequency domain resource allocation field in DCI detected by a terminal device in a certain time unit indicate 0, the terminal device may assume some other fields in the DCI, such as fields for indicating transmission modes, for example, reference signal resource selection information, the number of transmission layers, a transmission precoding matrix, spatial transmission filtering information, antenna port information, a modulation and coding scheme MCS, and a redundancy version RV, are used to indicate a transmission mode in which the UE transmits data on subsequent unlicensed resources, but are not used to indicate data scheduling for licensed transmission; or, when all bits in a time domain resource allocation field in DCI detected by a terminal device in a certain time unit indicate 0, the terminal device may assume some other fields in the DCI, such as fields for indicating transmission modes, for example, reference signal resource selection information, a number of transmission layers, a transmission precoding matrix, spatial transmission filtering information, antenna port information, a modulation and coding scheme MCS, and a redundancy version RV, to indicate a transmission mode in which the UE transmits data on subsequent unlicensed resources, but not to indicate data scheduling for licensed transmission; or, when all bits in the time domain and frequency domain resource allocation fields in the DCI detected by the terminal device in a certain time unit indicate 0, the terminal device may assume some other fields in the DCI, such as fields for indicating transmission modes, for example, reference signal resource selection information, the number of transmission layers, a transmission precoding matrix, spatial transmission filtering information, antenna port information, a modulation and coding scheme MCS, and a redundancy version RV, to indicate the transmission mode in which the UE transmits data on the subsequent grant-free resources, but not to indicate data scheduling for grant transmission. By adopting the method, a new DCI format does not need to be introduced to indicate the authorization-free resource transmission mode, and the complexity of blind detection of DCI by the terminal equipment can be reduced.
Or, optionally, a new DCI format may be introduced for the first signaling, and the difference from the existing DCI format for grant transmission is that the new DCI format does not include a time-frequency resource indication field, and may also not include a reference signal trigger field, and is dedicated to indicating a transmission mode used by the UE for transmitting data on the grant-free resource. This may reduce the overhead of DCI signaling. At this time, the UE determines the type of the DCI according to the time unit in which the blindly detected DCI is located, specifically, when the UE detects the DCI in the time unit in which the first unlicensed resource is located, assume that the DCI format is the new DCI format (dedicated to instruct to switch the transmission scheme used for transmitting data on the unlicensed resource), and when the UE detects the DCI outside the time unit in which the first unlicensed resource is located, assume that the DCI format is the DCI format used for the licensed resource scheduling.
Optionally, only the time unit for uplink transmission is included in the time unit occupied by the first unlicensed resources. Specifically, the network device may only transmit DCI in a time unit for downlink transmission in a time unit other than the time unit occupied by the first unlicensed resources. At this time, the terminal device can only detect the DCI in the time unit for downlink transmission in the time unit other than the time unit occupied by the plurality of first grant-free resources. At this time, if the interval between the last time unit for downlink transmission after the time unit occupied by the N-1 st first unlicensed resource and the start position of the time unit occupied by the nth first unlicensed resource is greater than or equal to M time units, the first time is in the last time unit for downlink transmission after the time unit occupied by the N-1 st first unlicensed resource, where the N-1 st first unlicensed resource is the last first unlicensed resource before the nth first unlicensed resource, M may be determined according to the decoding capability and PUSCH encoding capability of the UE, and may be based on reporting of the UE capability and signaling high-level configuration.
Optionally, the method 200 may further include:
the network device sends a second signaling to the terminal device at a second time, the second signaling includes third transmission parameter indication information, the second time is located in one of Y time units occupied by an mth first unlicensed resource, the mth first unlicensed resource belongs to the multiple first unlicensed resources, the third transmission parameter indication information is used for indicating the terminal device to send data on at least one first unlicensed resource started by the M + K2 first unlicensed resources to use a third transmission mode, the third transmission mode is different from the second transmission mode, at least one first unlicensed resource started by the M + K2 first unlicensed resources belongs to the multiple first unlicensed resources, where M is a positive integer, and M > N, and K2 is a positive integer.
Before the M + K1 th first unlicensed resource, the UE transmits data on the first unlicensed resource by adopting the transmission mode indicated by the second transmission parameter indication information, and after the M + K2 th first unlicensed resource, the UE transmits data on the first unlicensed resource by adopting the transmission mode indicated by the third transmission parameter indication information.
Alternatively, K1 and K2 may be the same or different, and are not limited thereto.
Optionally, the second signaling may be carried in downlink control information DCI, that is, the network device may send the third transmission parameter indication information to the terminal device through DCI signaling. Here, the third transmission parameter indication information sent by the network device through the second signaling may be understood as: and after the second transmission parameter indication information is sent through the first signaling, the network equipment sends third transmission parameter indication information to the terminal equipment again. The second transmission parameter indication and the third transmission parameter indication are used for indicating a transmission mode adopted by the UE for sending data on the first authorization-free resource.
Optionally, the third transmission parameter indication information may include: at least one parameter type among the parameters included in the first transmission parameter indication information is different from that among the parameters included in the second transmission parameter indication information. For example, assuming that the parameters included in the first transmission parameter indication information are a set, the parameters included in the second transmission parameter indication information may be considered as a first subset in the set, and the parameters included in the third transmission parameter indication information may also be a second subset in the set, where the first subset and the second subset are at least partially different.
Optionally, the third transmission mode may be different from the second transmission mode. Optionally, the second transmission parameter indication information and the third transmission parameter indication information may include the same parameter types, such as the number of transmission layers, transmission precoding matrix, spatial transmission filtering information, antenna port information, modulation and coding scheme MCS, and redundancy version RV parameter, but values indicated by one or more parameters or indicated information are different, so as to ensure that the third transmission mode may be different from the second transmission mode, for example, the second transmission parameter indication information includes a precoding matrix corresponding to precoding matrix #1 indicated by the precoding matrix indication information, and the third transmission parameter indication information includes a precoding matrix corresponding to precoding matrix #2 indicated by the precoding matrix indication information, or for example, the second transmission parameter indication information and the third transmission parameter indication information have the same field, the information comprises redundancy version RV information, wherein the redundancy version RV information in the second transmission parameter indication information is RV1, and the redundancy version RV information in the third transmission parameter indication information is RV 3; or, the third transmission parameter indication information includes a parameter type included in part of the second transmission parameter indication information, for example, the second transmission parameter indication information includes a number of transmission layers, a transmission precoding matrix, spatial transmission filtering information, antenna port information, a modulation and coding scheme MCS, and a redundancy version RV parameter, and the third transmission parameter indication information comprises the number of transmission layers, a transmission precoding matrix parameter, and wherein the values indicated by one or more parameters or the indicated information are different, thereby ensuring that the third transmission mode can be different from the second transmission mode, for example, the second transmission parameter indication information comprises a precoding matrix corresponding to the precoding matrix #1 indicated by the precoding matrix indication information, and the third transmission parameter indication information includes a precoding matrix corresponding to precoding matrix #2 indicated by the precoding matrix indication information. It should be understood that, taking the second signaling as an example for description herein, on the subsequent first unlicensed resource, the network device may further send a signaling to the terminal device to indicate a transmission mode of the terminal device, which is not limited in this embodiment of the present application.
To facilitate understanding by those skilled in the art, the description herein is made in conjunction with the example of fig. 6. For example, fig. 6 shows a schematic diagram of an example according to an embodiment of the present application. As shown in fig. 6, the network device configures, in advance, an unlicensed time-frequency resource with 4 retransmissions (including TB #1, TB #2, TB #3, …, etc., and a precoding matrix #0 (the first transmission parameter indication information mentioned above) for the terminal device through RRC signaling, where a period of the unlicensed time-frequency resource is 9ms, that is, X + Y is 9 ms. Next, the network device obtains channel information by measuring the SRS, and instructs the terminal device to adopt the precoding matrix #1 (the second transmission parameter indication information described above) when transmitting the PUSCH by DCI signaling (a time unit in TB #1 in which the time occupied for transmitting the DCI signaling is located). If the terminal device obtains the uplink data packet at this time, the terminal device transmits the PUSCH with the precoding matrix #1 while transmitting TB #1 and TB # 2. After that, the terminal device detects the precoding matrix #2 (the third transmission parameter indication information described above) transmitted by the network device through the DCI in the time unit in TB #2, and transmits the PUSCH by using the precoding matrix #2 when transmitting TB # 3.
In this embodiment, there is also a case where the network device configures multiple sets of transmission resources for the terminal device, that is, in addition to the first unlicensed resource, a second unlicensed resource, …, and so on, may also be configured. If the network device configures multiple sets of unauthorized resources for the terminal device, the first signaling may also carry identification information of the first unauthorized resource (the identification information may specifically be an index or an identifier for identifying the unauthorized resource), that is, the terminal device is made to know that the transmission mode indicated by the second transmission parameter indication information is for the first unauthorized resource by displaying the indication mode. For example, the identification information of the unlicensed resource is a field, and each state in the field indicates one or more unlicensed resources, such as: the field is 2 bits, the field value of "00" represents the first license-exempt resource, the field value of "01" represents the second license-exempt resource, and the field value of "10" represents the first license-exempt and the second license-exempt resource. Correspondingly, for example, when the UE decodes to determine that the field indicates '00', the transmission parameter indication information in the field indicates that the second transmission mode is used for transmitting data on the first unlicensed resource, and when the UE decodes "10", the transmission parameter indication information in the field indicates that the fifth transmission mode is used for transmitting data on the second unlicensed resource.
Optionally, the configuration information further includes second resource information and fourth transmission parameter indication information, where the second resource information is used to indicate a plurality of second unlicensed resources, any two of the plurality of second unlicensed resources are separated by X 'time units in a time domain, the plurality of second unlicensed resources include Y' time units in the time domain, and the fourth transmission parameter indication information is used to indicate that the terminal device sends data on the plurality of second unlicensed resources using a fourth transmission mode;
wherein the plurality of first unlicensed resources and the plurality of second unlicensed resources occupy different time units in a time domain. Alternatively, occupying different time units may be understood as occupying different absolute positions.
Optionally, the X 'may be the same as or different from the X in the foregoing, and similarly, the Y' may be the same as or different from the Y in the foregoing, which is not limited.
That is to say, the network device may carry, in the configuration information, related information of multiple sets of unlicensed resources, for example, second resource information used to indicate a second unlicensed resource, and fourth transmission parameter indication information used to indicate a transmission mode used by the terminal device to send data on the multiple second unlicensed resources.
Optionally, the method 200 further comprises:
the network device sends a third signaling to the terminal device at a third time, the third signaling includes fifth transmission parameter indication information, the third time is located in one of Y' time units occupied by a first second unlicensed resource, the first second unlicensed resource belongs to the second unlicensed resources, the second transmission parameter indication information is used for indicating the terminal device to send data on at least one second unlicensed resource starting from a + B second unlicensed resources to use a fifth transmission mode, the at least one second unlicensed resource starting from the a + B second unlicensed resources belongs to the second unlicensed resources, wherein a is a positive integer, and B is a positive integer.
Correspondingly, the terminal equipment receives the third signaling at a third time; and transmitting data on at least one second unlicensed resource from the A + B th second unlicensed resource using the fifth transmission mode.
It should be noted that the multiple first unlicensed resources and the multiple second unlicensed resources may occupy different time units in the time domain, and if the terminal device receives the first signaling in the time unit in the first unlicensed resources, it is considered that the second transmission mode indicated by the second transmission parameter indication information in the first signaling is for the first unlicensed resources; if the third signaling is received in the time unit in the second unlicensed resource, it is considered that the fifth transmission mode indicated by the fifth transmission parameter indication information in the third signaling is for the second unlicensed resource, that is, the network device may inform the terminal device in an implicit mode: the transmission parameter indication information sent on a certain unlicensed resource indicates that the transmission mode indicated by the transmission parameter indication information is for the unlicensed resource.
Optionally, the multiple first unlicensed resources and the multiple second unlicensed resources may occupy partially overlapping time units in a time domain, and if the terminal device receives a first signaling in the time unit where the first unlicensed resources and the second unlicensed resources overlap, it is considered that a second transmission mode indicated by the second transmission parameter indication information in the first signaling is for the first unlicensed resources and the second unlicensed resources.
Optionally, the fourth transmission parameter indication information includes at least one of the following parameters: the method comprises the following steps of transmitting layer number, a transmission precoding matrix, spatial transmission filtering information, antenna port information, a modulation and coding scheme MCS and a redundancy version RV;
the fifth transmission parameter indication information includes at least one of the parameters included in the fourth transmission parameter indication information.
Similarly, the fourth transmission method is different from the fifth transmission method, and for the specific explanation, reference may be made to the description of the first transmission method and the second transmission method, which is not described herein again.
Therefore, through the above manner, the network device may send the transmission parameter indication information of multiple sets of the authorization-exempt resources to the terminal device, so that the terminal device sends data on the corresponding authorization-exempt resources based on the transmission manner indicated by the transmission parameter indication information.
The embodiment of the application also provides another information transmission method. In this embodiment, a network device configures, by using a high-level signaling, multiple pieces of transmission parameter indication information for a terminal device, where each piece of transmission parameter indication information is used to indicate a transmission mode in which the terminal device sends data on multiple first license-free resources, and each piece of transmission parameter indication information may include information such as a precoding matrix indication and a number of transmission layers. Based on the reciprocity of the uplink and downlink channels (i.e. the uplink channel and the downlink channel are completely correlated or symmetric, i.e. the terminal device obtains downlink channel information based on the downlink channel covariance matrix or the signal receiving power obtained by the downlink reference signal, the terminal device obtains the uplink channel covariance matrix by solving the conjugate transpose of the downlink channel covariance matrix or directly obtains the uplink channel information by the downlink signal receiving power according to the channel reciprocity), both the network device and the terminal device can determine the optimal transmission mode of the current transmission based on the real-time channel measurement.
Fig. 7 shows a schematic interaction diagram of a method 400 of transferring information according to an embodiment of the application. For example, the terminal device in the method 400 may be a terminal device in fig. 1 (such as the terminal device 130 or the terminal device 140 in fig. 1), and the network device may be the radio access network device 120 in fig. 1. As shown in fig. 7, the method 400 includes:
s410, the network equipment sends configuration information to the terminal equipment. Correspondingly, the terminal device receives configuration information from the network device.
The configuration information includes first resource information and K first transmission parameter indication information, where the first resource information is used to indicate G first unlicensed resources, any two of the G first unlicensed resources are separated by X time units from the first unlicensed resources adjacent to each other in the time domain, each of the G first unlicensed resources occupies Y time units in the time domain, each of the K first transmission parameter indication information is used to indicate the terminal device to transmit data on the first unlicensed resources using a first transmission mode, where K is an integer greater than 1, G is an integer greater than 1, X is a positive integer, and Y is a positive integer.
It should be understood that the above G is introduced for convenience of description. In the configuration information, the value of G may not be included, and in this case, G is equivalent to a plurality of meanings.
Optionally, the configuration information is carried in RRC signaling. Alternatively, the configuration information may be transmitted through a broadcast signal.
Optionally, the configuration information further includes reference signal resource configuration information, which specifically includes: a configuration parameter of a Sounding Reference Signal (SRS) resource for a network device to obtain uplink channel information, and a configuration parameter of a CSI reference signal (CSI-RS) resource for a terminal device to obtain downlink channel information. Optionally, the configuration parameters of the Sounding Reference Signal (SRS) resource for the network device to acquire the uplink channel information may include: port number, transmission bandwidth, frequency hopping bandwidth, transmission power, occupied OFDM symbols, transmission period and offset, etc. Correspondingly, the terminal device may transmit the SRS on the SRS resource according to the configuration parameter of the SRS resource. Optionally, the configuration parameters of a CSI reference signal (CSI-RS) resource for the terminal device to acquire the downlink channel information may include: the terminal device may receive the CSI-RS on the CSI-RS resource according to the configuration parameters of the CSI-RS resource, such as the number of ports, the transmission bandwidth, the REs occupied in one RB, the transmission period, and the offset.
Optionally, the first transmission parameter indication information includes at least one of the following parameters: the number of transmission layers, transmission precoding matrix, spatial transmission filtering information, and antenna port information.
Optionally, the first transmission mode further includes a power control parameter, where the power control parameter is used to indicate a transmission power used by the terminal device to transmit the PUSCH.
S420, the network device receives the uplink reference signal at the nth time.
S430, the terminal equipment receives the downlink reference signal at the P-th time.
Here, the relationship between the nth time and the pth time is not limited, as long as it is ensured that the terminal device determines, through the downlink reference signal at the pth time, the transmission method indicated by the kth first transmission parameter indication information to transmit data on the lth first unlicensed resource, and the network device determines, through the uplink reference signal at the nth time, the transmission method indicated by the kth first transmission parameter indication information to receive data on the lth first unlicensed resource.
Alternatively, the uplink reference signal and the downlink reference signal may be in the same time unit, that is, the nth time and the pth time may be in the same time unit. Or, optionally, the uplink reference signal and the downlink reference signal may also be separated by several time units in the time domain, that is, the nth time and the pth time may be separated by several time units. Optionally, if the nth time and the pth time are separated by several time units in the time domain, the determination of the separated time units also needs to be selected according to the following condition, that is: and the network equipment determines to adopt the transmission mode indicated by the kth first transmission parameter indication information through the uplink reference signal at the Nth moment, and receives data on the Lth first authorization-free resource.
And S440, the terminal equipment sends data on the L-th first authorization-free resource after the P + M time by adopting the transmission mode indicated by the K-th first transmission parameter indication information, wherein K belongs to [1, K ], the K-th first transmission parameter indication information is determined by the terminal equipment according to the downlink reference signal received at the P time, and L belongs to [1, G ], and M is a positive integer.
Correspondingly, the network device receives data in an L-th first unlicensed resource after the N + M time by using a transmission mode indicated by kth first transmission parameter indication information, where the kth first transmission parameter indication information is determined by the network device according to the uplink reference signal received at the N time, and K belongs to [1, K ], and M is a positive integer.
It should be understood that, here, the first L-th unlicensed resource is taken as an example for description, and actually, if the terminal device does not determine a first transmission parameter indication information again for sending subsequent data, the data may be sent on the L + 1-th first unlicensed resource by using the transmission mode indicated by the kth first transmission parameter indication information, which is not limited to this, and accordingly, the network device may also receive data on the L + 1-th first unlicensed resource by using the transmission mode indicated by the kth first transmission parameter indication information.
Optionally, the downlink reference signal may include a CSI-RS.
Optionally, the uplink reference signal may include an SRS or UL DM-RS, etc.
For the terminal device, the pth time may be understood as: and the terminal equipment receives the downlink reference signal (such as CSI-RS) according to the time of M time units before the starting time unit included in the Lth first unlicensed resource and the time of the latest unlicensed resource.
Specifically, for data transmitted on the lth first unlicensed resource, the terminal device determines, according to a downlink reference signal (e.g., CSI-RS) received on a CSI-RS resource on a latest time unit (the time unit is the pth time) M time units before a starting time unit included in the lth first unlicensed resource, one piece of first transmission parameter indication information (e.g., the kth first transmission parameter indication information) from the plurality of pieces of first transmission parameter indication information, where the kth first transmission parameter indication information is used for the terminal device to transmit data (e.g., PUSCH) on the lth first unlicensed resource.
For the network device, the nth time may be understood as: and the network device receives the uplink reference signal (such as the SRS) according to M time units before the start time unit included in the lth first unlicensed resource and on the nearest time unit of the unlicensed resource.
Specifically, the network device determines, according to the SRS received on the SRS resource M time units before the starting time unit included in the lth first unlicensed resource, which is the latest time unit (the time unit is the nth time), one first transmission parameter indication information (for example, the kth first transmission parameter indication information), such as the kth first transmission parameter indication information, from the plurality of first transmission parameter indication information, where the first transmission parameter indication information is used for receiving data (for example, PUSCH) on the lth first unlicensed resource.
Specifically, after receiving the K pieces of first transmission parameter indication information, the terminal device may perform channel measurement based on the downlink reference signal at the P-th time to determine one piece of first transmission parameter indication information from the K pieces of first transmission parameter indication information, where a transmission parameter indicated by the first transmission parameter indication information is optimal for current transmission, that is, the transmission parameter is most matched with the current channel state. And the terminal equipment uses the determined first transmission parameter indication information to send the subsequent data until the terminal equipment determines a first transmission parameter indication information again to send the subsequent data. Here, the terminal device may obtain a channel matrix through the downlink reference Signal, determine an eigenvector corresponding to the channel matrix by applying, for example, an eigenvalue decomposition algorithm to the channel matrix, and determine a most preferable rank and precoding matrix from the K pieces of first transmission parameter indication information based on the eigenvector, or determine an equivalent Signal to interference plus Noise Ratio (SINR) corresponding to the K pieces of first transmission parameter indication information based on the K pieces of first transmission parameter indication information and the channel information, thereby determining the most preferable rank and precoding matrix.
Correspondingly, based on reciprocity of uplink and downlink channels, the network device determines one piece of first transmission parameter indication information from the K pieces of first transmission parameter indication information based on the uplink reference signal at the nth time, where the transmission parameter indicated by the first transmission parameter indication information is optimal, and receives data using the optimal transmission parameter.
That is to say, the network device determines the transmission mode used for transmitting the PUSCH on the lth first unlicensed resource after the nth + M time based on the channel measurement result at the nth time; and the terminal equipment determines the transmission mode adopted by the transmission of the PUSCH on the Lth first authorization-free resource after the P + M time based on the channel measurement result at the P time. Specifically, for example, the network device determines the channel information through a periodic SRS transmitted by the terminal device. Meanwhile, the terminal device determines channel information through the periodic CSI-RS sent by the network device, where the periodic SRS and the periodic CSI-RS need to be sent as simultaneously as possible and transmission modes are guaranteed to be consistent, where the transmission modes are consistent and include: the power adopted by the terminal equipment for sending the periodic SRS and the power adopted by the network equipment for sending the periodic CSI-RS are kept consistent; the frequency domain bandwidth occupied by the terminal device for sending the periodic SRS and the network device for sending the periodic CSI-RS (which may also include occupied time units, such as slot …) is kept consistent; the Spatial domain transmission filter (Spatial domain transmission filter) used by the terminal device to transmit the periodic SRS is kept consistent with the Spatial QCL used by the network device to transmit the periodic CSI-RS, that is, the SRS transmission beam and the CSI-RS transmission beam are kept consistent.
Optionally, the method 400 further comprises:
the network device sends H pieces of second transmission parameter indication information to the terminal device, wherein each piece of second transmission parameter indication information in the H pieces of second transmission parameter indication information is used for indicating one or more of the following parameters: modulation and coding scheme MCS, redundancy version RV; correspondingly, the terminal equipment receives the H pieces of second transmission parameter indication information. Optionally, the H second transmission parameter indication information may be carried in RRC signaling.
The method for receiving, by the network device, data on an lth first unlicensed resource after the nth + M time by using the transmission mode indicated by the kth first transmission parameter indication information includes:
and the network device receives data on the L-th first license-exempt resource after the N + M time by adopting the transmission mode indicated by the k-th first transmission parameter indication information and the parameter indicated by the H-th second transmission parameter indication information, wherein the H-th second transmission parameter indication information is determined according to the uplink reference signal received at the N time, and H belongs to [1, H ].
Correspondingly, the terminal device sends data on the lth first unlicensed resource after the P + M time by using the transmission mode indicated by the kth first transmission parameter indication information and the parameter indicated by the H-th second transmission parameter indication information, where the H-th second transmission parameter indication information is determined according to the downlink reference signal received at the nth time, and H ∈ [1, H ].
Wherein H e [1, H ] indicates that the H-th can be one of H second transmission parameter indication information.
Specifically, the network device may further send H pieces of second transmission parameter indication information to the terminal device. The network device may further determine, based on the uplink reference signal received at the nth time, one piece of second transmission parameter indication information, for example, an H-th second transmission parameter indication information, from among the H pieces of second transmission parameter indication information, and receive data according to a parameter indicated by the H-th second transmission parameter indication information and a transmission mode indicated by the k-th first transmission parameter indication information.
For example, if the second transmission parameter indication information indicates an MCS, the network device configures K first transmission parameter indication information for the terminal device through high-level signaling, and each transmission parameter indication information may be associated with one MCS. If the terminal equipment determines a piece of first transmission parameter indication information based on periodic CSI-RS measurement, and the first transmission parameter indication information indicates the optimal precoding and the optimal number of transmission layers, the MCS adopted by the terminal equipment to send the PUSCH is the MCS associated with the optimal precoding and the optimal number of transmission layers.
Optionally, since the network device does not know the size of the data packet to be transmitted by the terminal device in advance, the embodiment of the present application assumes that the terminal device does not determine its MCS based on the size of the data packet to be transmitted and the time-frequency resource of uplink transmission, but only determines the transmission mode (including the MCS) based on the reference signal measurement configured by the network device. Specifically, SINR levels corresponding to each MCS may be predefined, and the terminal device determines the current SINR level based on the measurement of the downlink reference signal, so as to determine the MCS. Optionally, the SINR level may also be configured by the network device through higher layer signaling. Optionally, the level of MCS corresponding to SINR may be network device configured or protocol predefined.
Optionally, the method 400 further comprises:
the network device sends J pieces of third transmission parameter indication information to the terminal device, wherein each piece of the J pieces of third transmission parameter indication information is used for indicating at least one piece of first transmission parameter indication information and one piece of second transmission parameter indication information associated with the at least one piece of first transmission parameter indication information, or each piece of the J pieces of third transmission parameter indication information is used for indicating one piece of first transmission parameter indication information and at least one piece of second transmission parameter indication information associated with the one piece of first transmission parameter indication information;
the network device determines, according to the uplink reference signal received at the nth time, jth third transmission parameter indication information, where the jth third transmission parameter indication information is used to indicate that the kth first transmission parameter indication information is associated with the ith second transmission parameter indication information, where the ith second transmission parameter indication information or the kth first transmission parameter indication information is determined according to the jth third transmission parameter indication information, and J ∈ [1, J ].
Optionally, the J third transmission parameter indication information may be carried in RRC signaling. J e [1, J ] indicates that the jth can be one of J.
Specifically, J pieces of third transmission parameter indication information may be sent to the terminal device before the network device sends H pieces of second transmission parameter indication information to the terminal device. The network device may determine, based on J pieces of third transmission parameter indication information, J pieces of third transmission parameter indication information according to the uplink reference signal received at the nth time, where the J pieces of third transmission parameter indication information indicate that the kth piece of first transmission parameter indication information is associated with the h piece of second transmission parameter indication information. That is, after obtaining the jth third transmission parameter indication information, the network device may obtain not only the kth first transmission parameter indication information but also the h second transmission parameter indication information.
Alternatively, a third transmission parameter indication information may indicate that a first transmission parameter indication information is associated with a second transmission parameter indication information, or may indicate that a plurality of first transmission parameter indication information is associated with a second transmission parameter indication information, or may indicate that a first transmission parameter indication information is associated with a plurality of second transmission parameter indication information, which is not limited thereto.
Correspondingly, the terminal device may determine, based on J pieces of third transmission parameter indication information, a jth piece of third transmission parameter indication information according to the downlink reference signal received at the pth time, where the jth piece of third transmission parameter indication information indicates that the kth piece of first transmission parameter indication information is associated with the h piece of second transmission parameter indication information. That is, after obtaining the jth third transmission parameter indication information, the terminal device may obtain not only the kth first transmission parameter indication information but also the h second transmission parameter indication information.
The third transmission parameter indication information is described in connection with the example in table 1 below, and as shown in table 1, one third transmission parameter indication information may indicate that one first transmission parameter indication information is associated with one second transmission parameter indication information. It should be understood that table 1 is only used for describing an example that one first transmission parameter indication information is associated with one second transmission parameter indication information, and does not limit the embodiments of the present application, that is, one first transmission parameter indication information may also be associated with a plurality of second transmission parameter indication information, or a plurality of first transmission parameter indication information may be associated with one second transmission parameter indication information.
TABLE 1
Figure BDA0001740633310000221
Figure BDA0001740633310000231
Wherein, in Table 1, IMCSThe specific meaning of (c) can be determined according to table 2, which is an example of a table of MCS index values for 64 QAM. It should be understood that the description is made only by way of example in table 2, and the scope of the embodiments of the present application is not limited thereto, i.e. I in table 1MCSThe specific meaning of (a) can also be determined based on other reasonable means. As shown in Table 2 below, IMCSThe value of (2) can be determined according to the modulation order, the target code rate and the spectrum efficiency. Here, specific explanations of the terms referred to in table 2 can be referred to the descriptions in the prior art, and are not repeated here for brevity.
TABLE 2
Figure BDA0001740633310000232
Wherein, the specific meaning of the precoding matrix index in table 1 can be determined according to table 3 or table 4. Table 3 shows an example of a correspondence relationship between a precoding matrix index and a precoding matrix in one layer transmission. Here, specific explanations of the terms referred to in table 3 and table 4 can be referred to the description in the prior art, and are not repeated here for brevity.
TABLE 3
Figure BDA0001740633310000241
TABLE 4
Figure BDA0001740633310000242
It should be understood that, here, only table 3 and table 4 are used as examples for description, and in a specific implementation, the precoding matrix index in table 1 may also be determined by using a corresponding relationship between other precoding matrix indexes and precoding matrices, which is not limited in this embodiment of the present application.
Optionally, each of the K pieces of first transmission parameter indication information includes transmission layer number indication information, where the transmission layer numbers indicated by the transmission layer number indication information in each piece of first transmission parameter indication information are different from each other. Specifically, if the first transmission parameter indicates the precoding and the number of transmission layers indicated by the information, each of the precoding and the number of transmission layers indicated by the plurality of transmission parameter indicates different numbers of transmission layers, so as to ensure that MCS results calculated by the terminal device and the network device are as consistent as possible. This is because, the implementation algorithms of the terminal device and the network device for channel estimation are different, and there is a deviation between the channel obtained by the terminal device through the downlink reference signal and the channel obtained by the network device through the uplink reference signal, which may cause a deviation between the channel information determined by the terminal device and the channel information determined by the network device. If the number of transmission layers of each candidate configuration in the plurality of sets of pre-coding and transmission layer numbers which are defined to be configured in advance is different, the difference between the candidate configurations can be opened as far as possible, and therefore mismatching of the transmission modes of the most preferable PUSCH transmission selected by the terminal equipment and the network equipment can be avoided as far as possible.
Optionally, the network device may configure two-stage periodic SRS resources for the terminal device, where the first-stage periodic SRS resource is an SRS resource with a long period that is not precoded, and the first-stage periodic SRS resource is used for the network device to determine precoding and transmission layer number information indicated by a high-level signaling; the second-stage SRS resource is a short-period precoded SRS resource and is used for determining a periodic PUSCH transmission mode. And the period of the second-stage SRS resource and the period of the CSI-RS resource are the same as the period configuration of the PUSCH resource.
It should be understood that the various aspects of the embodiments of the present application can be reasonably combined and explained, and the explanation or explanation of the various terms appearing in the embodiments can be mutually referred to or explained in the various embodiments, which is not limited.
It should also be understood that, in the various embodiments of the present application, the sequence numbers of the above-mentioned processes do not mean the execution sequence, and the execution sequence of each process should be determined by its function and inherent logic, and should not constitute any limitation to the implementation process of the embodiments of the present application.
It should also be understood that, in the embodiments of the present application, the numbers "first", "second", …, etc. are introduced only for distinguishing different objects, such as different "unlicensed resources", or different "transmission parameter indication information", or different "transmission modes", etc., and do not limit the embodiments of the present application.
The present embodiments also provide an apparatus for implementing any one of the above methods, for example, an apparatus is provided that includes a unit (or means) for implementing each step performed by a terminal in any one of the above methods. For another example, another apparatus is also provided, which includes means for performing each step performed by a network device in any one of the above methods.
The method for transmitting information according to the embodiment of the present application is described in detail above with reference to fig. 1 to 7. An apparatus for transmitting information according to an embodiment of the present application will be described in detail with reference to fig. 8 to 18. It should be understood that the technical features described in the method embodiments are equally applicable to the following apparatus embodiments.
Fig. 8 shows a schematic block diagram of a network device 800 according to an embodiment of the application. As shown in fig. 8, the network device 800 includes:
a sending module 810, configured to send configuration information to a terminal device, where the configuration information includes first resource information and first transmission parameter indication information, the first resource information is used to indicate multiple first unlicensed resources, any two of the multiple first unlicensed resources are separated by X time units from adjacent first unlicensed resources in a time domain, each of the multiple first unlicensed resources occupies Y time units in the time domain, and the first transmission parameter indication information is used to indicate the terminal device to send data on the first unlicensed resources using a first transmission mode, where X is a positive integer and Y is a positive integer;
the sending module 810 is further configured to send a first signaling to the terminal device at a first time, where the first signaling includes second transmission parameter indication information, the first time is located in one of Y time units occupied by an nth first unlicensed resource, the nth first unlicensed resource belongs to the plurality of first unlicensed resources, the second transmission parameter indication information is used to indicate that the terminal device sends data on at least one first unlicensed resource starting from N + K1-th first unlicensed resources using a second transmission mode, the at least one first unlicensed resource starting from N + K1-th first unlicensed resources belongs to the plurality of first unlicensed resources, where N is a positive integer, and K1 is a positive integer.
Optionally, the network device 800 may further include a receiving module, configured to receive data sent by the terminal device on at least one first unlicensed resource starting from the N + K1 th first unlicensed resource using the second transmission manner.
Optionally, the sending module 810 is further configured to:
and sending a second signaling to the terminal device at a second time, where the second signaling includes third transmission parameter indication information, the second time is located in one of Y time units occupied by an mth first unlicensed resource, the mth first unlicensed resource belongs to the multiple first unlicensed resources, the third transmission parameter indication information is used to indicate that the terminal device sends data on at least one first unlicensed resource started by an M + K2-th first unlicensed resource to use a third transmission mode, the M + K2-th first unlicensed resource started by the M + K2-th first unlicensed resource belongs to the multiple first unlicensed resources, where M is a positive integer, M > N, and K2 is a positive integer.
Optionally, the configuration information further includes second resource information and fourth transmission parameter indication information, where the second resource information is used to indicate a plurality of second unlicensed resources, any two of the plurality of second unlicensed resources are separated by X 'time units in a time domain, the plurality of second unlicensed resources include Y' time units in the time domain, and the fourth transmission parameter indication information is used to indicate that the terminal device sends data on the plurality of second unlicensed resources using a fourth transmission mode;
wherein the plurality of first unlicensed resources and the plurality of second unlicensed resources occupy different time units in a time domain.
Optionally, the first transmission parameter indication information includes at least one of the following parameters: reference signal resource selection information, the number of transmission layers, a transmission precoding matrix, spatial transmission filtering information, antenna port information, a modulation and coding scheme MCS and a redundancy version RV;
the second transmission parameter indication information includes at least one of the parameters included in the first transmission parameter indication information.
Optionally, the configuration information is carried in radio resource control RRC signaling, and the first signaling is carried in downlink control information DCI.
It should be understood that the network device 800 according to the embodiment of the present application may correspond to a method on the network device side in the foregoing method embodiment (e.g., the method 200 in fig. 2), and the foregoing and other management operations and/or functions of each module in the network device 800 are respectively for implementing corresponding steps of each foregoing method, so that beneficial effects in the foregoing method embodiment may also be implemented, and for brevity, no further description is provided here.
Fig. 9 shows a schematic block diagram of a network device 900 according to an embodiment of the application. As shown in fig. 9, the network device 900 includes:
a processor 901, a memory 902, and a transceiver 903.
The processor 901, memory 902 and transceiver 903 communicate with each other, passing control and/or data signals, over the internal connection paths. In one possible design, the processor 901, the memory 902, and the transceiver 903 may be implemented by chips. The memory 902 may store program codes, and the processor 901 calls the program codes stored by the memory 902 to implement the corresponding functions of the network device.
The transceiver 903 is configured to: sending configuration information to a terminal device, where the configuration information includes first resource information and first transmission parameter indication information, the first resource information is used to indicate multiple first unlicensed resources, any two of the multiple first unlicensed resources are separated by X time units from adjacent first unlicensed resources in a time domain, each of the multiple first unlicensed resources occupies Y time units in the time domain, and the first transmission parameter indication information is used to indicate that the terminal device sends data on the first unlicensed resources using a first transmission mode, where X is a positive integer and Y is a positive integer; the first signaling comprises second transmission parameter indication information, the first time is located in one of Y time units occupied by the nth first unlicensed resource, the nth first unlicensed resource belongs to the plurality of first unlicensed resources, the second transmission parameter indication information is used for indicating the terminal device to transmit data on at least one first unlicensed resource starting from the N + K1 th first unlicensed resource to use a second transmission mode, the N + K1 th first unlicensed resource starts from the plurality of first unlicensed resources to belong to the plurality of first unlicensed resources, wherein N is a positive integer, and K1 is a positive integer.
Fig. 10 shows a schematic block diagram of a terminal device 1000 according to an embodiment of the application. As shown in fig. 10, the terminal device 1000 includes:
a receiving module 1010, configured to receive configuration information from a network device, where the configuration information includes first resource information and first transmission parameter indication information, the first resource information is used to indicate multiple first unlicensed resources, any two of the multiple first unlicensed resources are separated by X time units from adjacent first unlicensed resources in a time domain, each of the multiple first unlicensed resources occupies Y time units in the time domain, and the first transmission parameter indication information is used to indicate a first transmission mode used by the terminal device to send data on the first unlicensed resources, where X is a positive integer and Y is a positive integer;
the receiving module 1010 is further configured to receive a first signaling from the network device at a first time, where the first signaling includes second transmission parameter indication information, the first time is located in one of Y time units occupied by an nth first unlicensed resource, the nth first unlicensed resource belongs to the first unlicensed resources, the second transmission parameter indication information is used to indicate that the terminal device sends data on at least one first unlicensed resource starting from an N + K1, using a second transmission manner, and the at least one first unlicensed resource starting from the N + K1 belongs to the first unlicensed resources, where N is a positive integer and K1 is a positive integer;
a sending module 1020, configured to send data on at least one first unlicensed resource starting from the N + K1 th first unlicensed resource using the second transmission mode.
Optionally, the receiving module 1010 is further configured to:
receiving a second signaling from the network device at a second time, where the second signaling includes third transmission parameter indication information, the second time is located in one of Y time units occupied by an mth first unlicensed resource, the mth first unlicensed resource belongs to the multiple first unlicensed resources, the third transmission parameter indication information is used to indicate that the terminal device sends data on at least one first unlicensed resource starting from an M + K2-th first unlicensed resource, so as to use a third transmission mode, and the at least one first unlicensed resource starting from the M + K2-th first unlicensed resource belongs to the multiple first unlicensed resources, where M is a positive integer, and M > N, and K2 is a positive integer;
the sending module 1020 is further configured to: and transmitting data on at least one first license-exempt resource starting from the M + K2 th first license-exempt resource by using the third transmission mode.
Optionally, the sending module 1020 is specifically configured to:
detecting first signaling only in Y time units occupied by at least one first authorization-free resource in the plurality of first authorization-free resources, and receiving second transmission parameter indication information from the network equipment at the first time in the Y time units occupied by the Nth first authorization-free resource.
Optionally, the configuration information further includes second resource information and fourth transmission parameter indication information, where the second resource information is used to indicate a plurality of second unlicensed resources, any two of the plurality of second unlicensed resources are separated by X 'time units in a time domain, the plurality of second unlicensed resources include Y' time units in the time domain, and the fourth transmission parameter indication information is used to indicate that the terminal device sends data on the plurality of second unlicensed resources using a fourth transmission mode;
wherein the plurality of first unlicensed resources and the plurality of second unlicensed resources occupy different time units in a time domain.
Optionally, the first transmission parameter indication information includes at least one of the following fields: reference signal resource selection information, the number of transmission layers, a transmission precoding matrix, spatial transmission filtering information, antenna port information, a modulation and coding scheme MCS and a redundancy version RV;
the second transmission parameter indication information includes at least one of fields of the first transmission mode.
Optionally, the configuration information is carried in radio resource control RRC signaling, and the first signaling is carried in downlink control information DCI.
It should be understood that the terminal device 1000 according to the embodiment of the present application may correspond to a method on the terminal device side in the foregoing method embodiment (for example, the method 200 in fig. 2), and the foregoing and other management operations and/or functions of each module in the terminal device 1000 are respectively for implementing corresponding steps of each foregoing method, so that beneficial effects in the foregoing method embodiment may also be implemented, and for brevity, no further description is provided here.
Fig. 11 shows a schematic block diagram of a terminal device 1100 according to an embodiment of the present application. As shown in fig. 11, the terminal device 1100 includes:
a processor 1101, a memory 1102, and a transceiver 1103.
The processor 1101, memory 1102, and transceiver 1103 communicate with each other, passing control and/or data signals, over the internal connection paths. In one possible design, the processor 1101, the memory 1102, and the transceiver 1103 may be implemented by a chip. The memory 1102 may store program codes, and the processor 1101 calls the program codes stored in the memory 1102 to realize the corresponding functions of the terminal device.
The transceiver 1103 is configured to: receiving configuration information from a network device, where the configuration information includes first resource information and first transmission parameter indication information, the first resource information is used to indicate multiple first unlicensed resources, any two of the multiple first unlicensed resources are separated by X time units from adjacent first unlicensed resources in a time domain, each of the multiple first unlicensed resources occupies Y time units in the time domain, and the first transmission parameter indication information is used to indicate that a terminal device sends data on the first unlicensed resources to use a first transmission mode, where X is a positive integer and Y is a positive integer;
the transceiver 1103 is further configured to receive, at a first time, a first signaling from the network device, where the first signaling includes second transmission parameter indication information, the first time is located in one of Y time units occupied by an nth first unlicensed resource, where the nth first unlicensed resource belongs to the first unlicensed resources, and the second transmission parameter indication information is used to indicate that the terminal device sends data on at least one first unlicensed resource starting from an N + K1, where the at least one first unlicensed resource starting from the N + K1 belongs to the first unlicensed resources, where N is a positive integer and K1 is a positive integer;
the transceiver 1103 is further configured to transmit data on at least one first unlicensed resource starting from the N + K1 th first unlicensed resource using the second transmission mode.
The transceiver 1103 may include a receiver for performing a receiving function and a transmitter for performing a transmitting function.
Fig. 12 shows a schematic block diagram of a network device 1200 according to an embodiment of the application. As shown in fig. 12, the network device 1200 includes:
a sending module 1210, configured to send first resource information and K first transmission parameter indication information to a terminal device, where the first resource information is used to indicate G first unlicensed resources, any two of the G first unlicensed resources are separated by X time units from first unlicensed resources that are adjacent in a time domain, each of the G first unlicensed resources occupies Y time units in the time domain, and each of the K first transmission parameter indication information is used to indicate the terminal device to send data on the first unlicensed resources using a first transmission mode, where K is an integer greater than 1, G is an integer greater than 1, X is a positive integer, and Y is a positive integer;
a receiving module 1220, configured to receive an uplink reference signal at an nth time;
the receiving module 1220 is further configured to receive data in a transmission manner indicated by kth first transmission parameter indication information on an lth first unlicensed resource that is closest after the nth + M time, where the kth first transmission parameter indication information is determined according to the uplink reference signal received at the nth time, and K belongs to [1, K ], and L belongs to [1, G ].
Optionally, the first transmission parameter indication information includes at least one of: reference signal resource selection information, the number of transmission layers, a transmission precoding matrix, spatial transmission filtering information and antenna port information;
the sending module 1210 is further configured to:
sending H pieces of second transmission parameter indication information to the terminal device, wherein each piece of the H pieces of second transmission parameter indication information is used for indicating one or more of the following: modulation and coding scheme MCS, redundancy version RV;
the receiving module 1220 is specifically configured to:
and the network device receives data on the L-th first license-exempt resource after the N + M time by adopting the transmission mode indicated by the k-th first transmission parameter indication information and the parameter indicated by the H-th second transmission parameter indication information, wherein the H-th second transmission parameter indication information is determined according to the uplink reference signal received at the N time, and H belongs to [1, H ].
Optionally, the sending module 1210 is further configured to:
sending J third transmission parameter indication information to the terminal device, where each of the J third transmission parameter indication information is used to indicate at least one first transmission parameter indication information and one second transmission parameter indication information associated with the at least one first transmission parameter indication information, or each of the J third transmission parameter indication information is used to indicate one first transmission parameter indication information and at least one second transmission parameter indication information associated with the one first transmission parameter indication information;
the network device further includes:
a determining module, configured to determine a jth third transmission parameter indication information according to the uplink reference signal received at the nth time, where the jth third transmission parameter indication information is used to indicate that the kth first transmission parameter indication information is associated with the h second transmission parameter indication information, where the h second transmission parameter indication information or the kth first transmission parameter indication information is determined according to the jth third transmission parameter indication information, and J e [1, J ].
Optionally, each of the K pieces of first transmission parameter indication information includes transmission layer number indication information, where the transmission layer numbers indicated by the transmission layer number indication information in each of the K pieces of first transmission parameter indication information are different from each other.
It should be understood that the network device 1200 according to the embodiment of the present application may correspond to a method on the network device side in the foregoing method embodiment (for example, the method 400 in fig. 7), and the foregoing and other management operations and/or functions of each module in the network device 1200 are respectively for implementing corresponding steps of each foregoing method, so that beneficial effects in the foregoing method embodiment may also be implemented, and for brevity, no repeated description is provided here.
Fig. 13 shows a schematic block diagram of a network device 1300 according to an embodiment of the present application. As shown in fig. 13, the network device 1300 includes:
a processor 1301, a memory 1302, and a transceiver 1303.
The processor 1301, the memory 1302 and the transceiver 1303 communicate with each other via internal connection paths to transfer control and/or data signals. In one possible design, the processor 1301, the memory 1302, and the transceiver 1303 may be implemented by chips. The memory 1302 may store program code, and the processor 1301 invokes the program code stored in the memory 1302 to implement the corresponding functions of the network device.
The transceiver 1303 is configured to: the resource allocation method comprises the steps of sending first resource information and K pieces of first transmission parameter indication information to a terminal device, wherein the first resource information is used for indicating G pieces of first authorization-free resources, any two adjacent first authorization-free resources in the G pieces of first authorization-free resources are separated by X time units in a time domain, each first authorization-free resource in the G pieces of first authorization-free resources occupies Y time units in the time domain, and each piece of first transmission parameter indication information in the K pieces of first transmission parameter indication information is used for indicating the terminal device to send data on the first authorization-free resources to use a first transmission mode, wherein K is an integer larger than 1, G is an integer larger than 1, X is a positive integer, and Y is a positive integer;
the transceiver 1303 is further configured to receive an uplink reference signal at an nth time;
the transceiver 1303 is further configured to receive data on an L-th first unlicensed resource that is nearest after the nth + M time by using a transmission manner indicated by kth first transmission parameter indication information, where the kth first transmission parameter indication information is determined according to the uplink reference signal received at the nth time, and K belongs to [1, K ], and L belongs to [1, G ].
The transceiver 1303 may include a receiver and a transmitter, wherein the receiver is used for implementing a receiving function, and the transmitter is used for implementing a transmitting function.
Fig. 14 shows a schematic block diagram of a terminal device 1400 according to an embodiment of the application. As shown in fig. 14, the terminal device 1400 includes:
a receiving module 1410, configured to receive first resource information and K first transmission parameter indication information from a network device, where the first resource information is used to indicate G first unlicensed resources, any two of the G first unlicensed resources are separated by X time units in a time domain, each of the G first unlicensed resources occupies Y time units in the time domain, and each of the K first transmission parameter indication information is used to indicate a terminal device to send data on the first unlicensed resources using a first transmission mode, where K is an integer greater than 1, G is an integer greater than 1, X is a positive integer, and Y is a positive integer;
the receiving module 1410 is further configured to receive a downlink reference signal at a time point P;
a sending module 1420, configured to send data on the latest lth first unlicensed resource after the P + M time by using the transmission mode indicated by the kth first transmission parameter indication information, where the kth first transmission parameter indication information is determined according to the downlink reference signal received at the P time, and K belongs to [1, K ], and L belongs to [1, G ].
Optionally, the first transmission parameter indication information includes at least one of: reference signal resource selection information, the number of transmission layers, a transmission precoding matrix, spatial transmission filtering information and antenna port information;
the receiving module 1410 is further configured to: receiving H pieces of second transmission parameter indication information from the network device, wherein each piece of the H pieces of second transmission parameter indication information is used for indicating one or more of the following parameters: modulation and coding scheme MCS, redundancy version RV;
wherein the sending module 1420 is specifically configured to:
and transmitting data on the L-th first unlicensed resource after the P + M time by using the transmission mode indicated by the kth first transmission parameter indication information and the parameter indicated by the H-th second transmission parameter indication information, wherein the H-th second transmission parameter indication information is determined according to the downlink reference signal received at the N time, and H belongs to [1, H ].
Optionally, the receiving module 1410 is further configured to:
receiving J third transmission parameter indication information from the network device, wherein each of the J third transmission parameter indication information is used for indicating one first transmission parameter indication information and second transmission parameter indication information associated with the one first transmission parameter indication information, or each of the J third transmission parameter indication information is used for indicating one first transmission parameter indication information and at least one second transmission parameter indication information associated with the one first transmission parameter indication information;
the terminal device 1400 further includes:
a determining module, configured to determine jth third transmission parameter indication information according to the downlink reference signal received at the pth time, where the jth third transmission parameter indication information is used to indicate that the kth first transmission parameter indication information is associated with the h second transmission parameter indication information, where the h second transmission parameter indication information or the kth first transmission parameter indication information is determined according to the jth third transmission parameter indication information, and J e [1, J ].
Optionally, each of the K pieces of first transmission parameter indication information includes transmission layer number indication information, where the transmission layer numbers indicated by the transmission layer number indication information in each of the K pieces of first transmission parameter indication information are different from each other.
It should be understood that the terminal device 1400 according to the embodiment of the present application may correspond to the method on the terminal device side in the foregoing method embodiment (e.g., the method 400 in fig. 7), and the above and other management operations and/or functions of each module in the terminal device 1400 are respectively for implementing corresponding steps of each foregoing method, so that beneficial effects in the foregoing method embodiment may also be implemented, and for brevity, no further description is provided here.
Fig. 15 shows a schematic configuration diagram of a terminal apparatus 1500 according to an embodiment of the present application. As shown in fig. 15, the terminal apparatus 1500 includes:
a processor 1501, memory 1502, and a transceiver 1503.
The processor 1501, the memory 1502, and the transceiver 1503 communicate with each other via internal connection paths to transfer control and/or data signals. In one possible design, the processor 1501, the memory 1502, and the transceiver 1503 may be implemented by chips. The memory 1502 may store program codes, and the processor 1501 calls the program codes stored by the memory 1502 to implement the corresponding functions of the terminal device.
The transceiver 1503 is configured to: the first resource information is used for indicating G first unlicensed resources, any two of the G first unlicensed resources are separated by X time units in a time domain, each of the G first unlicensed resources occupies Y time units in the time domain, and each of the K first transmission parameter indication information is used for indicating the terminal device to transmit data on the first unlicensed resources using a first transmission mode, where K is an integer greater than 1, G is an integer greater than 1, X is a positive integer, and Y is a positive integer;
the transceiver 1503 is further configured to receive a downlink reference signal at a time point P;
the transceiver 1503 is further configured to transmit data in a transmission manner indicated by kth first transmission parameter indication information on an lth first unlicensed resource that is closest after the P + M time, where the kth first transmission parameter indication information is determined according to the downlink reference signal received at the P time, and K belongs to [1, K ], and L belongs to [1, G ].
The transceiver 1503 described above may include a receiver for implementing a receiving function and a transmitter for implementing a transmitting function.
The embodiment of the application also provides a communication device, and the communication device can be terminal equipment or a circuit. The communication device may be configured to perform the actions performed by the terminal device in the above-described method embodiments.
When the communication apparatus is a terminal device, fig. 16 shows a schematic structural diagram of a simplified terminal device. For ease of understanding and illustration, in fig. 16, the terminal device is exemplified by a mobile phone. As shown in fig. 16, the terminal device includes a processor, a memory, a radio frequency circuit, an antenna, and an input-output device. The processor is mainly used for processing communication protocols and communication data, controlling the terminal equipment, executing software programs, processing data of the software programs and the like. The memory is used primarily for storing software programs and data. The radio frequency circuit is mainly used for converting baseband signals and radio frequency signals and processing the radio frequency signals. The antenna is mainly used for receiving and transmitting radio frequency signals in the form of electromagnetic waves. Input and output devices, such as touch screens, display screens, keyboards, etc., are used primarily for receiving data input by a user and for outputting data to the user. It should be noted that some kinds of terminal devices may not have input/output devices.
When data needs to be sent, the processor performs baseband processing on the data to be sent and outputs baseband signals to the radio frequency circuit, and the radio frequency circuit performs radio frequency processing on the baseband signals and sends the radio frequency signals to the outside in the form of electromagnetic waves through the antenna. When data is sent to the terminal equipment, the radio frequency circuit receives radio frequency signals through the antenna, converts the radio frequency signals into baseband signals and outputs the baseband signals to the processor, and the processor converts the baseband signals into the data and processes the data. For ease of illustration, only one memory and processor are shown in FIG. 16. In an actual end device product, there may be one or more processors and one or more memories. The memory may also be referred to as a storage medium or a storage device, etc. The memory may be provided independently of the processor, or may be integrated with the processor, which is not limited in this embodiment.
In the embodiment of the present application, the antenna and the radio frequency circuit having the transceiving function may be regarded as a transceiving unit of the terminal device, and the processor having the processing function may be regarded as a processing unit of the terminal device. As shown in fig. 16, the terminal device includes a transceiving unit 1610 and a processing unit 1620. A transceiver unit may also be referred to as a transceiver, a transceiving device, etc. A processing unit may also be referred to as a processor, a processing board, a processing module, a processing device, or the like. Alternatively, a device for implementing a receiving function in the transceiving unit 1610 may be regarded as a receiving unit, and a device for implementing a transmitting function in the transceiving unit 1610 may be regarded as a transmitting unit, that is, the transceiving unit 1610 includes a receiving unit and a transmitting unit. A transceiver unit may also sometimes be referred to as a transceiver, transceiving circuitry, or the like. A receiving unit may also be referred to as a receiver, a receiving circuit, or the like. A transmitting unit may also sometimes be referred to as a transmitter, or a transmitting circuit, etc.
It should be understood that the transceiving unit 1610 is configured to perform the transmitting operation and the receiving operation on the terminal device side in the above method embodiments, and the processing unit 1620 is configured to perform other operations besides the transceiving operation on the terminal device in the above method embodiments.
For example, in one implementation, the transceiver 1610 is configured to perform receiving operations of the terminal device side in S210 and S220 in fig. 2, and a transmitting action of the terminal device side in S230, and/or the transceiver 1610 is further configured to perform other transceiving steps of the terminal device side in the embodiment of the present application. The processing unit 1620 is configured to execute other processing steps on the terminal device side in this embodiment of the application.
For another example, in another implementation manner, the transceiver 1610 is configured to perform receiving actions on the terminal device side in S410 and S430 in fig. 7, and transmitting operations on the terminal device side in S420 and S440, and/or the transceiver 1620 is further configured to perform other transceiving steps on the terminal device side in this embodiment of the present application. The processing unit 1620 is configured to execute other processing steps on the terminal device side in this embodiment.
When the communication device is a chip, the chip includes a transceiver unit and a processing unit. The transceiver unit can be an input/output circuit and a communication interface; the processing unit is a processor or a microprocessor or an integrated circuit integrated on the chip.
When the communication device in this embodiment is a terminal device, reference may be made to the device shown in fig. 17. As an example, the device may perform functions similar to processor 1102 of FIG. 11 or processor 1502 of FIG. 15. In fig. 17, the apparatus includes a processor 1710, a transmit data processor 1720, and a receive data processor 1730. The receiving module 1010 and the transmitting module 1020 in the above embodiments may be the transmitting data processor 1720 in fig. 17, or the receiving module 1410 and the transmitting module 1420 may be the transmitting data processor 1720 and/or the receiving data processor 1730 in fig. 17. Although fig. 17 shows a channel encoder, a channel decoder, a symbol generation module, and a channel estimation module, it is understood that these modules are not limited to the embodiment and are only schematic.
Fig. 18 shows another form of the present embodiment. The processing device 1800 includes modules such as a modulation subsystem, a central processing subsystem, and peripheral subsystems. The communication device in this embodiment may serve as a modulation subsystem therein. In particular, the modulation subsystem may include a processor 1803 and an interface 1804. Wherein the interface 1804 performs the functions of the receiving module 1010 and the sending module 1020, or performs the functions of the receiving module 1410 and the sending module 1420. As another variation, the modulation subsystem includes a memory 1806, a processor 1803, and a program stored in the memory 1806 and executable on the processor, and the processor 1803 executes the program to implement the method on the terminal device side in the above method embodiment. It is noted that the memory 1806 may be non-volatile or volatile, and may be located within the modulation subsystem or within the processing device 1800, as long as the memory 1806 is coupled to the processor 1803.
As another form of the present embodiment, there is provided a computer-readable storage medium having stored thereon instructions that, when executed, perform the method on the terminal device side in the above-described method embodiments.
As another form of the present embodiment, there is provided a computer program product containing instructions that, when executed, perform the method on the terminal device side in the above-described method embodiments.
The method disclosed in the embodiments of the present application may be applied to a processor, or may be implemented by a processor. The processor may be an integrated circuit chip having signal processing capabilities. In implementation, the steps of the above method embodiments may be performed by integrated logic circuits of hardware in a processor or instructions in the form of software. The Processor may be a general purpose Processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), an off-the-shelf programmable Gate Array (FPGA) or other programmable logic device, a discrete Gate or transistor logic device, a discrete hardware component, a system on chip (SoC), a Central Processing Unit (CPU), a Network Processor (NP), a Digital Signal Processor (DSP), a Microcontroller (MCU), a programmable logic controller (PLD), or other Integrated chip. The various methods, steps, and logic blocks disclosed in the embodiments of the present application may be implemented or performed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of the method disclosed in connection with the embodiments of the present application may be directly implemented by a hardware decoding processor, or implemented by a combination of hardware and software modules in the decoding processor. The software module may be located in ram, flash memory, rom, prom, or eprom, registers, etc. storage media as is well known in the art. The storage medium is located in a memory, and a processor reads information in the memory and completes the steps of the method in combination with hardware of the processor.
It will be appreciated that the memory in the embodiments of the subject application can be either volatile memory or nonvolatile memory, or can include both volatile and nonvolatile memory. The non-volatile memory may be a read-only memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an electrically Erasable EPROM (EEPROM), or a flash memory. Volatile memory can be Random Access Memory (RAM), which acts as external cache memory. By way of example, but not limitation, many forms of RAM are available, such as Static Random Access Memory (SRAM), Dynamic Random Access Memory (DRAM), Synchronous Dynamic Random Access Memory (SDRAM), double data rate SDRAM, enhanced SDRAM, SLDRAM, Synchronous Link DRAM (SLDRAM), and direct rambus RAM (DR RAM). It should be noted that the memory of the systems and methods described herein is intended to comprise, without being limited to, these and any other suitable types of memory.
Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.
It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
In the several embodiments provided in the present application, it should be understood that the disclosed system, apparatus and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit.
The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present application or portions thereof that substantially contribute to the prior art may be embodied in the form of a software product stored in a storage medium and including instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: various media capable of storing program codes, such as a U disk, a removable hard disk, a read-only memory ROM, a random access memory RAM, a magnetic disk, or an optical disk.
The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims (31)

1. A method of transmitting information, comprising:
the method comprises the steps that network equipment sends configuration information to terminal equipment, wherein the configuration information comprises first resource information and first transmission parameter indication information, the first resource information is used for indicating a plurality of first authorization-free resources, any two first authorization-free resources adjacent to each other in a time domain are separated by X time units, each first authorization-free resource in the first authorization-free resources occupies Y time units in the time domain, and the first transmission parameter indication information is used for indicating the terminal equipment to send data on the first authorization-free resources by using a first transmission mode, wherein X is a positive integer, and Y is a positive integer;
the network device sends a first signaling to the terminal device at a first time, the first signaling includes second transmission parameter indication information, the first time is located in one of Y time units occupied by an nth first unlicensed resource, the nth first unlicensed resource belongs to the plurality of first unlicensed resources, the second transmission parameter indication information is used for indicating the terminal device to send data on at least one first unlicensed resource starting from N + K1 first unlicensed resources to use a second transmission mode, the N + K1 first unlicensed resource starting from at least one first unlicensed resource belongs to the plurality of first unlicensed resources, where N is a positive integer, and K1 is a positive integer.
2. The method of claim 1, further comprising:
the network device sends a second signaling to the terminal device at a second time, the second signaling includes third transmission parameter indication information, the second time is located in one of Y time units occupied by an mth first unlicensed resource, the mth first unlicensed resource belongs to the multiple first unlicensed resources, the third transmission parameter indication information is used for indicating the terminal device to send data on at least one first unlicensed resource started by an M + K2 first unlicensed resource to use a third transmission mode, the at least one first unlicensed resource started by the M + K2 first unlicensed resource belongs to the multiple first unlicensed resources, wherein M is a positive integer, M > N, and K2 is a positive integer.
3. The method according to claim 1 or 2, wherein the configuration information further includes second resource information and fourth transmission parameter indication information, the second resource information is used to indicate a plurality of second unlicensed resources, any two of the plurality of second unlicensed resources are separated by X 'time units, the plurality of second unlicensed resources include Y' time units, and the fourth transmission parameter indication information is used to indicate that the terminal device transmits data on the plurality of second unlicensed resources using a fourth transmission mode;
wherein the plurality of first unlicensed resources and the plurality of second unlicensed resources occupy different time units in a time domain.
4. The method according to any of claims 1 to 3, wherein the first transmission parameter indication information comprises at least one of the following parameters: reference signal resource selection information, the number of transmission layers, a transmission precoding matrix, spatial transmission filtering information, antenna port information, a modulation and coding scheme MCS and a redundancy version RV;
the second transmission parameter indication information includes at least one of the parameters included in the first transmission parameter indication information.
5. The method according to any of claims 1 to 4, wherein the configuration information is carried in radio resource control, RRC, signaling and the first signaling is carried in Downlink control information, DCI.
6. A method of transmitting information, comprising:
the method comprises the steps that a terminal device receives configuration information from a network device, wherein the configuration information comprises first resource information and first transmission parameter indication information, the first resource information is used for indicating a plurality of first authorization-free resources, any two first authorization-free resources adjacent to each other in a time domain are separated by X time units, each first authorization-free resource in the plurality of first authorization-free resources occupies Y time units in the time domain, and the first transmission parameter indication information is used for indicating the terminal device to send data on the first authorization-free resources to use a first transmission mode, wherein X is a positive integer, and Y is a positive integer;
the terminal device receives a first signaling from the network device at a first time, where the first signaling includes second transmission parameter indication information, the first time is located in one of Y time units occupied by an nth first unlicensed resource, the nth first unlicensed resource belongs to the multiple first unlicensed resources, the second transmission parameter indication information is used to indicate that the terminal device sends data on at least one first unlicensed resource starting from N + K1 to use a second transmission mode, and the at least one first unlicensed resource starting from N + K1 belongs to the multiple first unlicensed resources, where N is a positive integer and K1 is a positive integer;
and the terminal equipment transmits data on at least one first authorization-free resource starting from the (N + K1) th first authorization-free resource by using the second transmission mode.
7. The method of claim 6, further comprising:
the terminal device receives a second signaling from the network device at a second time, where the second signaling includes third transmission parameter indication information, the second time is located in one of Y time units occupied by an mth first unlicensed resource, the mth first unlicensed resource belongs to the multiple first unlicensed resources, the third transmission parameter indication information is used to indicate that the terminal device sends data on at least one first unlicensed resource starting from an M + K2-th first unlicensed resource, using a third transmission mode, and the at least one first unlicensed resource starting from the M + K2-th first unlicensed resource belongs to the multiple first unlicensed resources, where M is a positive integer, M > N, and K2 is a positive integer;
and the terminal equipment transmits data on at least one first authorization-free resource starting from the M + K2 th first authorization-free resource by using a third transmission mode.
8. The method of claim 6 or 7, wherein the terminal device receives the first signaling from the network device at the first time, comprising:
the terminal device detects the first signaling only in Y time units occupied by at least one first authorization-free resource in the plurality of first authorization-free resources, and receives the second transmission parameter indication information from the network device at the first time in the Y time units occupied by the Nth first authorization-free resource.
9. The method according to any one of claims 6 to 8, wherein the configuration information further includes second resource information and fourth transmission parameter indication information, the second resource information is used to indicate a plurality of second unlicensed resources, any two of the plurality of second unlicensed resources are separated by X 'time units, the plurality of second unlicensed resources include Y' time units in the time domain, and the fourth transmission parameter indication information is used to indicate that the terminal device transmits data on the plurality of second unlicensed resources using a fourth transmission mode;
wherein the plurality of first unlicensed resources and the plurality of second unlicensed resources occupy different time units in a time domain.
10. The method according to any of claims 6 to 9, wherein the first transmission parameter indication information comprises at least one of: reference signal resource selection information, the number of transmission layers, a transmission precoding matrix, spatial transmission filtering information, antenna port information, a modulation and coding scheme MCS and a redundancy version RV;
the second transmission parameter indication information includes at least one of the first transmission modes.
11. A method of transmitting information, comprising:
the method comprises the steps that a network device sends first resource information and K pieces of first transmission parameter indication information to a terminal device, wherein the first resource information is used for indicating G pieces of first authorization-free resources, any two pieces of first authorization-free resources adjacent to each other in a time domain are separated by X time units, each first authorization-free resource in the G pieces of first authorization-free resources occupies Y time units in the time domain, and each piece of first transmission parameter indication information in the K pieces of first transmission parameter indication information is used for indicating the terminal device to send data on the first authorization-free resources to use a first transmission mode, wherein K is an integer larger than 1, G is an integer larger than 1, X is a positive integer, and Y is a positive integer;
the network equipment receives an uplink reference signal at the Nth moment;
and the network equipment receives data in an L-th first authorization-free resource which is nearest after the nth + M moment by adopting a transmission mode indicated by kth first transmission parameter indication information, wherein the kth first transmission parameter indication information is determined according to the uplink reference signal received at the nth moment, and K belongs to [1, K ], and L belongs to [1, G ].
12. The method of claim 11, wherein the first transmission parameter indication information comprises at least one of the following parameters: reference signal resource selection information, the number of transmission layers, a transmission precoding matrix, spatial transmission filtering information and antenna port information;
the method further comprises the following steps:
the network device sends H pieces of second transmission parameter indication information to the terminal device, wherein each piece of second transmission parameter indication information in the H pieces of second transmission parameter indication information is used for indicating one or more of the following parameters: modulation and coding scheme MCS, redundancy version RV;
the method for receiving, by the network device, data on an lth first unlicensed resource after the nth + M time by using the transmission mode indicated by the kth first transmission parameter indication information includes:
and the network device receives data on the L-th first license-exempt resource after the N + M time by adopting the transmission mode indicated by the k-th first transmission parameter indication information and the parameter indicated by the H-th second transmission parameter indication information, wherein the H-th second transmission parameter indication information is determined according to the uplink reference signal received at the N time, and H belongs to [1, H ].
13. The method of claim 12, further comprising:
the network device sends J pieces of third transmission parameter indication information to the terminal device, wherein each piece of the J pieces of third transmission parameter indication information is used for indicating at least one piece of first transmission parameter indication information and one piece of second transmission parameter indication information associated with the at least one piece of first transmission parameter indication information, or each piece of the J pieces of third transmission parameter indication information is used for indicating one piece of first transmission parameter indication information and at least one piece of second transmission parameter indication information associated with the one piece of first transmission parameter indication information;
the network device determines, according to the uplink reference signal received at the nth time, jth third transmission parameter indication information, where the jth third transmission parameter indication information is used to indicate that the kth first transmission parameter indication information is associated with the ith second transmission parameter indication information, where the ith second transmission parameter indication information or the kth first transmission parameter indication information is determined according to the jth third transmission parameter indication information, and J ∈ [1, J ].
14. The method according to any one of claims 11 to 13, wherein each of the K first transmission parameter indication information comprises transmission layer number indication information, and the transmission layer numbers indicated by the transmission layer number indication information in each of the K first transmission parameter indication information are different from each other.
15. A method of transmitting information, comprising:
a terminal device receives first resource information and K first transmission parameter indication information from a network device, wherein the first resource information is used for indicating G first authorization-free resources, any two first authorization-free resources adjacent to each other in a time domain are separated by X time units, each first authorization-free resource in the G first authorization-free resources occupies Y time units in the time domain, and each first transmission parameter indication information in the K first transmission parameter indication information is used for indicating the terminal device to transmit data on the first authorization-free resources to use a first transmission mode, wherein K is an integer greater than 1, G is an integer greater than 1, X is a positive integer, and Y is a positive integer;
the terminal equipment receives a downlink reference signal at a time P;
and the terminal equipment transmits data on the nearest Lth first authorization-free resource after the time P + M by adopting a transmission mode indicated by the kth first transmission parameter indication information, wherein the kth first transmission parameter indication information is determined according to the downlink reference signal received at the time P, and K belongs to [1, K ], and L belongs to [1, G ].
16. The method of claim 15, wherein the first transmission parameter indication information comprises at least one of the following parameters: reference signal resource selection information, the number of transmission layers, a transmission precoding matrix, spatial transmission filtering information and antenna port information;
the method further comprises the following steps:
the terminal device receives H pieces of second transmission parameter indication information from the network device, wherein each piece of second transmission parameter indication information in the H pieces of second transmission parameter indication information is used for indicating one or more of the following parameters: modulation and coding scheme MCS, redundancy version RV;
the method for sending data by the terminal device on the lth first unlicensed resource after the P + M time by using the transmission mode indicated by the kth first transmission parameter indication information includes:
and the terminal equipment transmits data on the L-th first authorization-free resource after the P + M time by adopting the transmission mode indicated by the k-th first transmission parameter indication information and the parameter indicated by the H-th second transmission parameter indication information, wherein the H-th second transmission parameter indication information is determined according to the downlink reference signal received at the N time, and H belongs to [1, H ].
17. The method of claim 16, further comprising:
the terminal device receives J pieces of third transmission parameter indication information from the network device, wherein each piece of the J pieces of third transmission parameter indication information is used for indicating one piece of first transmission parameter indication information and second transmission parameter indication information associated with the one piece of first transmission parameter indication information, or each piece of the J pieces of third transmission parameter indication information is used for indicating one piece of first transmission parameter indication information and at least one piece of second transmission parameter indication information associated with the one piece of first transmission parameter indication information;
the terminal device determines jth third transmission parameter indication information according to the downlink reference signal received at the pth time, where the jth third transmission parameter indication information is used to indicate that the kth first transmission parameter indication information is associated with the ith second transmission parameter indication information, where the ith second transmission parameter indication information or the kth first transmission parameter indication information is determined according to the jth third transmission parameter indication information, and J belongs to [1, J ].
18. The method according to any of claims 15 to 17, wherein each of the K first transmission parameter indication information comprises transmission layer number indication information, and the transmission layer numbers indicated by the transmission layer number indication information in each of the K first transmission parameter indication information are different from each other.
19. A network device, comprising:
a sending module, configured to send configuration information to a terminal device, where the configuration information includes first resource information and first transmission parameter indication information, the first resource information is used to indicate multiple first unlicensed resources, any two of the multiple first unlicensed resources are separated by X time units from adjacent first unlicensed resources in a time domain, each of the multiple first unlicensed resources occupies Y time units in the time domain, and the first transmission parameter indication information is used to indicate the terminal device to send data on the first unlicensed resources using a first transmission mode, where X is a positive integer and Y is a positive integer;
the sending module is further configured to send a first signaling to the terminal device at a first time, where the first signaling includes second transmission parameter indication information, the first time is located in one of Y time units occupied by an nth first unlicensed resource, the nth first unlicensed resource belongs to the plurality of first unlicensed resources, the second transmission parameter indication information is used to indicate that the terminal device sends data on at least one first unlicensed resource starting from N + K1-th first unlicensed resources using a second transmission mode, the at least one first unlicensed resource starting from N + K1-th first unlicensed resources belongs to the plurality of first unlicensed resources, where N is a positive integer, and K1 is a positive integer.
20. The network device of claim 19, wherein the sending module is further configured to:
and sending a second signaling to the terminal device at a second time, where the second signaling includes third transmission parameter indication information, the second time is located in one of Y time units occupied by an mth first unlicensed resource, the mth first unlicensed resource belongs to the multiple first unlicensed resources, the third transmission parameter indication information is used to indicate that the terminal device sends data on at least one first unlicensed resource started by an M + K2-th first unlicensed resource to use a third transmission mode, the M + K2-th first unlicensed resource started by the M + K2-th first unlicensed resource belongs to the multiple first unlicensed resources, where M is a positive integer, M > N, and K2 is a positive integer.
21. The network device according to claim 19 or 20, wherein the configuration information further includes second resource information and fourth transmission parameter indication information, the second resource information is used to indicate a plurality of second unlicensed resources, any two of the plurality of second unlicensed resources are separated by X 'time units, the plurality of second unlicensed resources include Y' time units, and the fourth transmission parameter indication information is used to indicate that the terminal device transmits data on the plurality of second unlicensed resources using a fourth transmission mode;
wherein the plurality of first unlicensed resources and the plurality of second unlicensed resources occupy different time units in a time domain.
22. A terminal device, comprising:
a receiving module, configured to receive configuration information from a network device, where the configuration information includes first resource information and first transmission parameter indication information, the first resource information is used to indicate multiple first unlicensed resources, any two of the multiple first unlicensed resources are separated by X time units from adjacent first unlicensed resources in a time domain, each of the multiple first unlicensed resources occupies Y time units in the time domain, and the first transmission parameter indication information is used to indicate a first transmission mode used by the terminal device to send data on the first unlicensed resources, where X is a positive integer and Y is a positive integer;
the receiving module is further configured to receive a first signaling from the network device at a first time, where the first signaling includes second transmission parameter indication information, the first time is located in one of Y time units occupied by an nth first unlicensed resource, the nth first unlicensed resource belongs to the multiple first unlicensed resources, the second transmission parameter indication information is used to indicate that the terminal device sends data on at least one first unlicensed resource starting from an N + K1 to use a second transmission mode, the at least one first unlicensed resource starting from the N + K1 belongs to the multiple first unlicensed resources, where N is a positive integer, and K1 is a positive integer;
a sending module, configured to send data on at least one first unlicensed resource starting from the N + K1 th first unlicensed resource using the second transmission mode.
23. The terminal device of claim 22, wherein the receiving module is further configured to:
receiving a second signaling from the network device at a second time, where the second signaling includes third transmission parameter indication information, the second time is located in one of Y time units occupied by an mth first unlicensed resource, the mth first unlicensed resource belongs to the multiple first unlicensed resources, the third transmission parameter indication information is used to indicate that the terminal device sends data on at least one first unlicensed resource starting from an M + K2-th first unlicensed resource, so as to use a third transmission mode, and the at least one first unlicensed resource starting from the M + K2-th first unlicensed resource belongs to the multiple first unlicensed resources, where M is a positive integer, and M > N, and K2 is a positive integer;
the sending module is further configured to: and transmitting data on at least one first license-exempt resource starting from the M + K2 th first license-exempt resource by using the third transmission mode.
24. The terminal device according to claim 22 or 23, wherein the receiving module is specifically configured to:
detecting first signaling in Y time units occupied by at least one first authorization-free resource in the plurality of first authorization-free resources, and receiving second transmission parameter indication information from the network equipment at the first time in the Y time units occupied by the Nth first authorization-free resource.
25. The terminal device according to any one of claims 22 to 24, wherein the configuration information further includes second resource information and fourth transmission parameter indication information, the second resource information is used to indicate a plurality of second unlicensed resources, any two of the plurality of second unlicensed resources are separated by X 'time units, the plurality of second unlicensed resources include Y' time units in the time domain, and the fourth transmission parameter indication information is used to indicate that the terminal device transmits data on the plurality of second unlicensed resources using a fourth transmission mode;
wherein the plurality of first unlicensed resources and the plurality of second unlicensed resources occupy different time units in a time domain.
26. A network device, comprising:
a sending module, configured to send first resource information and K first transmission parameter indication information to a terminal device, where the first resource information is used to indicate G first unlicensed resources, any two of the G first unlicensed resources are separated by X time units from first unlicensed resources that are adjacent in a time domain, each of the G first unlicensed resources occupies Y time units in the time domain, and each of the K first transmission parameter indication information is used to indicate the terminal device to send data on the first unlicensed resources using a first transmission mode, where K is an integer greater than 1, G is an integer greater than 1, X is a positive integer, and Y is a positive integer;
a receiving module, configured to receive an uplink reference signal at an nth time;
the receiving module is further configured to receive data in a transmission manner indicated by kth first transmission parameter indication information on an L-th first unlicensed resource that is closest after the nth + M time, where the kth first transmission parameter indication information is determined according to an uplink reference signal received at the nth time, and K belongs to [1, K ], and L belongs to [1, G ].
27. The network device of claim 26, wherein the first transmission parameter indication information comprises at least one of the following parameters: reference signal resource selection information, the number of transmission layers, a transmission precoding matrix, spatial transmission filtering information and antenna port information;
the sending module is further configured to:
sending H pieces of second transmission parameter indication information to the terminal device, wherein each piece of the H pieces of second transmission parameter indication information is used for indicating one or more of the following parameters: modulation and coding scheme MCS, redundancy version RV;
wherein the receiving module is specifically configured to: and receiving data on the L-th first unlicensed resource after the N + M time by using the transmission mode indicated by the kth first transmission parameter indication information and the parameter indicated by the H-th second transmission parameter indication information, wherein the H-th second transmission parameter indication information is determined according to the uplink reference signal received at the N time, and H belongs to [1, H ].
28. The network device of claim 27, wherein the sending module is further configured to:
sending J third transmission parameter indication information to the terminal device, where each of the J third transmission parameter indication information is used to indicate at least one first transmission parameter indication information and one second transmission parameter indication information associated with the at least one first transmission parameter indication information, or each of the J third transmission parameter indication information is used to indicate one first transmission parameter indication information and at least one second transmission parameter indication information associated with the one first transmission parameter indication information;
the network device further includes:
a determining module, configured to determine a jth third transmission parameter indication information according to the uplink reference signal received at the nth time, where the jth third transmission parameter indication information is used to indicate that the kth first transmission parameter indication information is associated with the h second transmission parameter indication information, where the h second transmission parameter indication information or the kth first transmission parameter indication information is determined according to the jth third transmission parameter indication information, and J e [1, J ].
29. A terminal device, comprising:
a receiving module, configured to receive first resource information and K first transmission parameter indication information from a network device, where the first resource information is used to indicate G first unlicensed resources, any two of the G first unlicensed resources are separated by X time units from a first unlicensed resource that is adjacent to the first unlicensed resource in a time domain, each of the G first unlicensed resources occupies Y time units in the time domain, and each of the K first transmission parameter indication information is used to indicate a terminal device to transmit data on the first unlicensed resource to use a first transmission mode, where K is an integer greater than 1, G is an integer greater than 1, X is a positive integer, and Y is a positive integer;
the receiving module is further configured to receive a downlink reference signal at a pth time;
a sending module, configured to send data in a transmission manner indicated by kth first transmission parameter indication information on an lth first unlicensed resource that is closest after the P + M time, where the kth first transmission parameter indication information is determined according to a downlink reference signal received at the P time, and K belongs to [1, K ], and L belongs to [1, G ].
30. The terminal device according to claim 29, wherein the first transmission parameter indication information comprises at least one of the following parameters: reference signal resource selection information, the number of transmission layers, a transmission precoding matrix, spatial transmission filtering information and antenna port information;
the receiving module is further configured to: receiving H pieces of second transmission parameter indication information from the network device, wherein each piece of the H pieces of second transmission parameter indication information is used for indicating one or more of the following parameters: modulation and coding scheme MCS, redundancy version RV;
wherein the sending module is specifically configured to:
and transmitting data on the L-th first unlicensed resource after the P + M time by using the transmission mode indicated by the kth first transmission parameter indication information and the parameter indicated by the H-th second transmission parameter indication information, wherein the H-th second transmission parameter indication information is determined according to the downlink reference signal received at the N time, and H belongs to [1, H ].
31. The terminal device of claim 30, wherein the receiving module is further configured to:
receiving J third transmission parameter indication information from the network device, wherein each of the J third transmission parameter indication information is used for indicating one first transmission parameter indication information and second transmission parameter indication information associated with the one first transmission parameter indication information, or each of the J third transmission parameter indication information is used for indicating one first transmission parameter indication information and at least one second transmission parameter indication information associated with the one first transmission parameter indication information;
the terminal device further includes:
a determining module, configured to determine jth third transmission parameter indication information according to the downlink reference signal received at the pth time, where the jth third transmission parameter indication information is used to indicate that the kth first transmission parameter indication information is associated with the h second transmission parameter indication information, where the h second transmission parameter indication information or the kth first transmission parameter indication information is determined according to the jth third transmission parameter indication information, and J e [1, J ].
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