CN114902762A - Communication method and device - Google Patents

Communication method and device Download PDF

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Publication number
CN114902762A
CN114902762A CN202080085249.0A CN202080085249A CN114902762A CN 114902762 A CN114902762 A CN 114902762A CN 202080085249 A CN202080085249 A CN 202080085249A CN 114902762 A CN114902762 A CN 114902762A
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China
Prior art keywords
control channel
channel
time domain
control
domain offset
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CN202080085249.0A
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Chinese (zh)
Inventor
方昀
陈文洪
史志华
黄莹沛
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Guangdong Oppo Mobile Telecommunications Corp Ltd
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Guangdong Oppo Mobile Telecommunications Corp Ltd
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/04Wireless resource allocation
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/12Wireless traffic scheduling

Abstract

The invention provides a communication method and a device, wherein the method comprises the following steps: the network device sends a plurality of control channels to the terminal device, the terminal device receives at least one control channel of the plurality of control channels, and the plurality of control channels schedule the same physical channel. By the method, the plurality of control channels sent by the network equipment all have the same physical channel, so that the physical channels indicated by the plurality of control channels can be ensured to have the same resource allocation.

Description

Communication method and device Technical Field
The present invention relates to the field of communications technologies, and in particular, to a communication method and apparatus.
Background
In a wireless communication system, a terminal device may obtain information such as a physical resource location occupied by Downlink Control Information (DCI) and a resource size occupied by the DCI by blind detecting a Physical Downlink Control Channel (PDCCH).
When the control channel schedules the corresponding channel, the time domain resource of the corresponding channel is obtained by adding a certain offset to the time domain resource when the control channel is transmitted. In the related art, if a control channel is transmitted separately, the channel scheduled by the control channel is uniquely determined.
However, when the control channels are transmitted for multiple times, if multiple control channels schedule the same scheduled channel, it cannot be guaranteed that the physical channels indicated by multiple control channels have the same resource allocation.
Disclosure of Invention
Embodiments of the present invention provide a communication method and apparatus, so as to solve the problem that, in the prior art, when multiple control channels schedule the same scheduled channel, it cannot be guaranteed that physical channels indicated by the multiple control channels have the same resource allocation.
A first aspect of the present invention provides a communication method, including:
receiving at least one control channel of a plurality of control channels transmitted by a network device, the plurality of control channels scheduling the same physical channel.
In an optional embodiment, starting positions of time domain resources of at least two transmitted control channels of the plurality of control channels are different.
In an optional embodiment, the method further comprises:
detecting at least one of the plurality of control channels.
In an optional embodiment, the detecting at least one of the plurality of control channels includes:
and detecting a first control channel in the at least one control channel, and acquiring time domain resources of the first control channel.
In an optional embodiment, the method further comprises:
a first time domain offset of a control channel to a scheduled channel is determined based on the first control channel.
In an optional embodiment, the determining a first time domain offset of a control channel to a scheduled channel includes:
a first time domain offset from a starting position of a control channel to a starting position of a scheduling channel is determined.
In an optional embodiment, the determining a first time domain offset of the control channel to the scheduled channel includes:
a first time domain offset from a symbol corresponding to a starting position of the control channel to a symbol of the scheduling channel is determined.
In an optional embodiment, the determining a first time domain offset of the control channel to the scheduled channel includes:
a first time domain offset is determined from a time slot in which the control channel is located to a time slot in which the scheduled channel is located.
In an alternative embodiment, the unit of the first time domain offset is an orthogonal frequency division multiplexing multi-carrier modulation symbol or a time slot.
In an alternative embodiment, the plurality of control channels are transmitted repeatedly.
In an optional embodiment, the first time domain offset is a time domain offset from a second control channel to a scheduled channel, and the second control channel is one of the plurality of control channels that are repeatedly transmitted.
In an optional embodiment, the second control channel and the first control channel are control channels for repeated transmission.
In an alternative embodiment, the second control channel is indicated by a network device.
In an alternative embodiment, the second control channel is the earliest transmitted control channel or the latest transmitted control channel or any control channel in the middle among the plurality of control channels of the repeated transmission.
In an optional embodiment, the network device dynamically indicates or statically indicates or pre-configures the second control channel.
In an optional embodiment, the method further comprises:
and determining a second time domain offset according to the first control channel and the second control channel, wherein the second time domain offset is the time domain offset from the first control channel to the second control channel.
In an optional embodiment, the time domain offset of the first control channel to the second control channel includes:
and the time domain offset from the starting position of the first control channel to the starting position of the second control channel or the time domain offset from the time slot in which the first control channel is positioned to the time slot in which the second control channel is positioned.
In an optional embodiment, the method further comprises:
and determining the time domain position of the scheduled channel according to the first time domain offset, the second time domain offset and the time domain resource of the first control channel.
In an optional embodiment, the first time domain offset is a time domain offset of the first control channel to a scheduled channel.
In an optional implementation manner, the first time domain offset is a time domain offset from a third control channel to a scheduled channel, and a starting transmission position of the third control channel is different from that of the first control channel.
In an optional embodiment, the method further comprises:
and determining the time domain position of the scheduled channel according to the first time domain offset and the time domain resource of the first control channel.
In an optional embodiment, the detecting at least one of the plurality of control channels includes:
and detecting the at least one control channel at the corresponding moment of the at least one control channel according to the state of the transmission configuration indication configured by the network equipment.
In an optional implementation manner, the control channel is a downlink control channel PDCCH or an uplink control channel PUCCH.
In an optional implementation manner, the channel scheduled by the control channel is a physical downlink shared channel PDSCH or a physical uplink shared channel PUSCH or a physical uplink control channel PUCCH.
In an optional embodiment, the PUCCH is used to carry ACK/NACK information of the PDSCH.
In an optional embodiment, the method further comprises:
and receiving or transmitting the channel scheduled by the control channel at the position of the time domain resource of the channel scheduled by the control channel.
In an alternative embodiment, the control channel is associated with a first identifier, and the first identifier is associated with a first time interval, where the first time interval is a time interval from the receiving time of the plurality of control channels to the corresponding scheduled channel.
In an optional implementation manner, if the first identifiers associated with the multiple control channels are different, at least one of the first time intervals is smaller than a first threshold value and at least one of the first time intervals is larger than the first threshold value.
In an optional implementation manner, if at least one of the first time intervals is smaller than the first threshold and at least one of the first time intervals is larger than the first threshold, the first identifiers associated with the multiple control channels are the same.
In an optional embodiment, the first identifier is a control resource set identifier or a control resource set pool identifier.
In an optional embodiment, the network device dynamically indicates or statically indicates or pre-configures the first identifier.
In an optional implementation manner, the first threshold is determined by the network device configuration or by the terminal device reporting.
A second aspect of the present invention provides a communication method, including:
transmitting a plurality of control channels to a terminal device, the plurality of control channels scheduling a same physical channel.
In an optional embodiment, starting positions of time domain resources of at least two transmitted control channels of the plurality of control channels are different.
In an optional implementation manner, the sending multiple control channels to the terminal device includes:
transmitting the plurality of control channels to the terminal device via at least one transmission configuration indication.
In an optional implementation manner, the control channel is a downlink control channel PDCCH or an uplink control channel PUCCH.
In an optional implementation manner, the channel scheduled by the control channel is a physical downlink shared channel PDSCH or a physical uplink shared channel PUSCH or a physical uplink control channel PUCCH.
In an optional embodiment, the PUCCH is used to carry ACK/NACK information of the PDSCH.
In an alternative embodiment, the control channel is associated with a first identifier, and the first identifier is associated with a first time interval, where the first time interval is a time interval from the receiving time of the plurality of control channels to the corresponding scheduled channel.
In an optional implementation manner, if the first identifications associated with the plurality of control channels are the same, the plurality of control channels are configured such that at least one of the first time intervals is smaller than a first threshold value and at least one of the first time intervals is larger than the first threshold value.
In an optional implementation manner, if the first identifiers associated with the multiple control channels are different, the multiple control channels are configured such that the first time intervals are all greater than the first threshold value or the first time intervals are all smaller than the first threshold value.
In an optional embodiment, the first identifier is a control resource set identifier or a control resource set pool identifier.
In an alternative embodiment, the network device dynamically indicates or statically indicates or pre-configures the first identifier.
In an optional implementation manner, the first threshold is determined through network device configuration or through terminal device reporting.
A third aspect of the present invention provides a communication apparatus comprising: a receiving module, configured to receive at least one control channel of multiple control channels sent by a network device, where the multiple control channels schedule a same physical channel.
In an optional embodiment, starting positions of time domain resources of at least two transmitted control channels of the plurality of control channels are different.
In an alternative embodiment, the apparatus further comprises:
a processing module to detect at least one of the plurality of control channels.
In an optional implementation manner, the processing module is specifically configured to detect a first control channel in the at least one control channel, and acquire a time domain resource of the first control channel.
In an optional implementation manner, the processing module is further configured to determine a first time domain offset from the control channel to the scheduled channel according to the first control channel.
In an optional implementation manner, the processing module is specifically configured to determine a first time domain offset from a starting position of the control channel to a starting position of the scheduling channel.
In an optional implementation manner, the processing module is specifically configured to determine a first time domain offset from a symbol corresponding to a starting position of the control channel to a symbol of the scheduling channel.
In an optional implementation manner, the processing module is specifically configured to determine a first time domain offset from a time slot in which the control channel is located to a time slot in which the scheduled channel is located.
In an alternative embodiment, the unit of the first time domain offset is an orthogonal frequency division multiplexing multi-carrier modulation symbol or a time slot.
In an alternative embodiment, the plurality of control channels are transmitted repeatedly.
In an optional embodiment, the first time domain offset is a time domain offset from a second control channel to a scheduled channel, and the second control channel is one of the plurality of control channels that are repeatedly transmitted.
In an optional embodiment, the second control channel and the first control channel are control channels for repeated transmission.
In an alternative embodiment, the second control channel is indicated by a network device.
In an optional embodiment, the second control channel is the earliest transmitted control channel or the latest transmitted control channel or any control channel in the middle among the plurality of control channels of the repeated transmission.
In an optional embodiment, the network device dynamically indicates or statically indicates or pre-configures the second control channel.
In an optional implementation manner, the processing module is further configured to determine a second time domain offset according to the first control channel and the second control channel, where the second time domain offset is a time domain offset from the first control channel to the second control channel.
In an optional embodiment, the time domain offset of the first control channel to the second control channel includes:
and the time domain offset from the starting position of the first control channel to the starting position of the second control channel or the time domain offset from the time slot in which the first control channel is positioned to the time slot in which the second control channel is positioned.
In an optional implementation manner, the processing module is further configured to determine a time domain position of the scheduled channel according to the first time domain offset, the second time domain offset, and the time domain resource of the first control channel.
In an optional embodiment, the first time domain offset is a time domain offset of the first control channel to a scheduled channel.
In an optional implementation manner, the first time domain offset is a time domain offset from a third control channel to a scheduled channel, and a starting transmission position of the third control channel is different from that of the first control channel.
In an optional implementation manner, the processing module is further configured to determine a time domain position of the scheduled channel according to the first time domain offset and the time domain resource of the first control channel.
In an optional implementation manner, the processing module is specifically configured to detect the at least one control channel at a time corresponding to the at least one control channel according to a state of the transmission configuration indication configured by the network device.
In an optional implementation manner, the control channel is a downlink control channel PDCCH or an uplink control channel PUCCH.
In an optional implementation manner, the channel scheduled by the control channel is a physical downlink shared channel PDSCH or a physical uplink shared channel PUSCH or a physical uplink control channel PUCCH.
In an optional embodiment, the PUCCH is used to carry ACK/NACK information of the PDSCH.
In an optional embodiment, the apparatus further comprises: and the transmission module is used for receiving or transmitting the channel scheduled by the control channel at the position of the time domain resource of the channel scheduled by the control channel.
In an optional embodiment, the control channel is associated with a first identifier, and the first identifier is associated with a first time interval, where the first time interval is a time interval from the multiple control channels to the receiving time of the corresponding scheduled channel.
In an optional implementation manner, if the first identifiers associated with the multiple control channels are different, at least one of the first time intervals is smaller than a first threshold value and at least one of the first time intervals is larger than the first threshold value.
In an optional implementation manner, if at least one of the first time intervals is smaller than the first threshold and at least one of the first time intervals is larger than the first threshold, the first identifiers associated with the multiple control channels are the same.
In an optional embodiment, the first identifier is a control resource set identifier or a control resource set pool identifier.
In an optional embodiment, the network device dynamically indicates or statically indicates or pre-configures the first identifier.
In an optional implementation manner, the first threshold is determined by the network device configuration or by the terminal device reporting.
A fourth aspect of the present invention provides a communication apparatus comprising: a sending module, configured to send multiple control channels to a terminal device, where the multiple control channels schedule the same physical channel.
In an optional embodiment, starting positions of time domain resources of at least two transmitted control channels of the plurality of control channels are different.
In an optional implementation manner, the sending module is specifically configured to transmit the plurality of control channels to the terminal device through at least one transmission configuration indication.
In an optional implementation manner, the control channel is a downlink control channel PDCCH or an uplink control channel PUCCH.
In an optional implementation manner, the channel scheduled by the control channel is a physical downlink shared channel PDSCH or a physical uplink shared channel PUSCH or a physical uplink control channel PUCCH.
In an optional embodiment, the PUCCH is used to carry ACK/NACK information of the PDSCH.
In an alternative embodiment, the apparatus as in any one of claims 77-79, wherein the control channel is associated with a first identifier, and the first identifier is associated with a first time interval, and the first time interval is a time interval from a receiving time of the plurality of control channels to a corresponding scheduled channel.
In an optional implementation manner, if the first identifications associated with the plurality of control channels are the same, the plurality of control channels are configured such that at least one of the first time intervals is smaller than a first threshold value and at least one of the first time intervals is larger than the first threshold value.
In an optional implementation manner, if the first identifiers associated with the multiple control channels are different, the multiple control channels are configured such that the first time intervals are all greater than the first threshold value or the first time intervals are all smaller than the first threshold value.
In an optional embodiment, the first identifier is a control resource set identifier or a control resource set pool identifier.
In an alternative embodiment, the network device dynamically indicates or statically indicates or pre-configures the first identifier.
In an optional implementation manner, the first threshold is determined through network device configuration or through terminal device reporting.
A fifth aspect of the present invention provides a terminal device, including: a processor, a memory, a transmitter, and a receiver; the transmitter and the receiver are coupled to the processor, the processor controlling the transmitting action of the transmitter, the processor controlling the receiving action of the receiver;
wherein the memory is configured to store computer executable program code, the program code comprising information; the information, when executed by the processor, causes the network device to perform the communication method as provided by the various possible embodiments of the first aspect.
A sixth aspect of the present invention provides a network device, where the terminal device includes: a processor, a memory, a transmitter, and a receiver; the transmitter and the receiver are coupled to the processor, the processor controlling the transmitting action of the transmitter, the processor controlling the receiving action of the receiver;
wherein the memory is configured to store computer executable program code, the program code comprising information; when the processor executes the information, the information causes the terminal device to perform the communication method as provided by the embodiments of the second aspect.
A seventh aspect of the present invention provides a chip comprising: and the processor is used for calling and running the computer program from the memory so that the device provided with the chip executes the communication method provided by the implementation mode of the first aspect.
An eighth aspect of the present invention provides a chip comprising: a processor for calling and running the computer program from the memory so that the device on which the chip is installed performs the communication method provided by the embodiment of the second aspect.
A ninth aspect of the present invention provides a computer-readable storage medium for storing a computer program that causes a computer to execute the communication method provided by the implementation manner of the first aspect.
A tenth aspect of the present invention provides a computer-readable storage medium for storing a computer program for causing a computer to execute the communication method as provided by the embodiment of the second aspect.
An eleventh aspect of the present invention provides a computer program product comprising computer program information for causing a computer to perform the communication method as provided by the embodiments of the first aspect.
A twelfth aspect of the present invention provides a computer program product comprising computer program information to make a computer execute the communication method as provided by the embodiments of the second aspect.
A thirteenth aspect of the present invention provides a computer program that causes a computer to execute the communication method provided in the embodiments of the first aspect.
A fourteenth aspect of the present invention provides a computer program that causes a computer to execute the communication method provided in the embodiment of the second aspect.
In the communication method and apparatus provided in the embodiments of the present invention, a network device sends a plurality of control channels to a terminal device, the terminal device receives at least one control channel of the plurality of control channels, and the plurality of control channels schedule the same physical channel. By the method, the plurality of control channels sent by the network equipment all have the same physical channel, so that the physical channels indicated by the plurality of control channels can be ensured to have the same resource allocation.
Drawings
In order to more clearly illustrate the technical solutions of the present invention or the prior art, the following briefly introduces the drawings needed to be used in the description of the embodiments or the prior art, and obviously, the drawings in the following description are some embodiments of the present invention, and those skilled in the art can obtain other drawings according to the drawings without inventive labor.
Fig. 1 is a schematic view of a communication method according to an embodiment of the present disclosure;
fig. 2 is a signaling interaction diagram of a communication method according to an embodiment of the present application;
fig. 3 is a signaling interaction diagram of another communication method according to an embodiment of the present application;
fig. 4 is a signaling interaction diagram of another communication method according to an embodiment of the present application;
fig. 5 is a schematic structural diagram of a communication device according to an embodiment of the present application;
fig. 6 is a schematic structural diagram of another communication device according to an embodiment of the present application;
fig. 7 is a schematic structural diagram of a terminal device according to an embodiment of the present application;
fig. 8 is a schematic structural diagram of a network device according to an embodiment of the present application.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The names appearing in the present application are explained first below.
A downlink control channel (PDCCH) is a set of physical resource elements (rbs) and is used for carrying scheduling and other control information.
The transmission configuration indication (TCI state) is a system for reducing the hybrid use of automatic repeat-request (ARQ) and Forward Error Correction (FEC) codes in most packet transmission systems.
In a wireless communication system, a terminal device may obtain information such as a physical resource location occupied by Downlink Control Information (DCI) and a resource size occupied by DCI by blind busy detection of a Physical Downlink Control Channel (PDCCH).
When the control channel schedules the corresponding channel, the time domain resource of the corresponding channel is obtained by adding a certain offset to the time domain resource when the control channel is transmitted. In the related art, if a control channel is transmitted separately, the channel scheduled by the control channel is uniquely determined.
However, when the control channels are transmitted for multiple times, if multiple control channels schedule the same scheduled channel, it cannot be guaranteed that the physical channels indicated by the multiple control channels have the same resource allocation.
In order to solve the above problem, in the present application, multiple control channels sent by a network device are set as physical channels which are the same in scheduling, and due to the fact that the scheduled channels are the same, it is further achieved that the physical channels indicated by the multiple control channels have the same resource allocation when the multiple control channels schedule the same scheduled channel.
Fig. 1 is a scene schematic diagram of a communication method according to an embodiment of the present application. As shown in fig. 1, a terminal device 101 and a network device 102 communicate with each other, and the terminal device 101 receives at least one control channel of a plurality of control channels sent by the network device 102, and may further obtain a time domain resource of a first control channel and determine a time domain position of a scheduled channel. Because the multiple control channels sent by the network device 102 are set to schedule the same physical channel, it is further achieved that the physical channels indicated by the multiple control channels have the same resource allocation when the multiple control channels schedule the same scheduled channel.
The number of the terminal devices 101 and the number of the network devices 102 included in the communication system are not limited in the embodiment of the present application.
The Terminal 101 may also be referred to as a Terminal, a User Equipment (UE), a Mobile Station (MS), a Mobile Terminal (MT), or the like. The terminal device 102 may be a mobile phone (mobile phone), a tablet (pad), a computer with 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 self driving (self driving), a wireless terminal in remote surgery (remote medical supply), a wireless terminal in smart grid (smart grid), a wireless terminal in smart home (smart home), and the like.
Network device 102, which can be, for example, a base station or various wireless access points, or can refer to a device in an access network that communicates over the air-interface, through one or more sectors, with user devices. The base station may be configured to interconvert received air frames and IP packets as a router between the wireless terminal and the rest of the access network, which may include an Internet Protocol (IP) network. The base station may also coordinate management of attributes for the air interface. For example, the base station may be a Base Transceiver Station (BTS) in global system for mobile communications (GSM) or Code Division Multiple Access (CDMA), a base station (NodeB, NB) in Wideband Code Division Multiple Access (WCDMA), an evolved node b (eNB or eNodeB) in Long Term Evolution (LTE), a relay station or an Access point, or a base station gNB in a future 5G network, and the like, which are not limited herein.
It should be noted that the communication method in the embodiment of the present application may be applied to various communication systems, and the implementation of the present application is not limited to a communication system that can be used, and may be an NR communication system, or may be another communication system.
It should be noted that the application scenario shown in fig. 1 is only one available scenario of the present application, and the present application may also be applied to any other scenario that requires multiple control channels to be transmitted.
The following describes the technical solutions of the embodiments of the present application in detail with specific embodiments, taking network devices and terminal devices as examples. The following several specific embodiments may be combined with each other, and details of the same or similar concepts or processes may not be repeated in some embodiments.
Fig. 2 is a signaling interaction diagram of a communication method according to an embodiment of the present application. The embodiment relates to a process of how a terminal device and a network device interact. As shown in fig. 2, the method includes:
s201, the terminal device receives at least one control channel in a plurality of control channels sent by the network device, and the plurality of control channels schedule the same physical channel.
The terminal device may receive one of the multiple control channels sent by the network device, may also receive a part of the multiple control channels sent by the network device, and may also receive all the control channels sent by the network device, which is not limited in this embodiment of the present application.
In some embodiments, the starting position of the time domain resource of the at least two transmitted control channels of the plurality of control channels is different.
The embodiment of the present application is also not limited to the type of the control channel, and may be, for example, a PDCCH. Correspondingly, the embodiment of the present application also does not limit the type of the channel scheduled by the control channel, and for example, the channel scheduled by the control channel is a Physical Downlink Shared Channel (PDSCH) or a Physical Uplink Shared Channel (PUSCH) or a Physical Uplink Control Channel (PUCCH).
In some embodiments, if the channel scheduled by the control channel is PUCCH, the PUCCH is used to carry positive Acknowledgement (ACK)/Negative Acknowledgement (NACK) information of the PDSCH.
In an optional implementation manner, after receiving the at least one of the plurality of control channels, the terminal device may detect the at least one of the plurality of control channels. For example, the terminal device may detect only one control channel, may detect some of a plurality of control channels, and may detect all of the plurality of control channels. In some embodiments, the terminal device may stop detecting after detecting a control channel.
In some embodiments, the network device may transmit the plurality of control channels to the terminal device via at least one transmission configuration indication.
In this application, since the plurality of control channels transmitted by the network device schedule the same physical channel, the physical channels indicated by the plurality of control channels have the same resource allocation.
In an alternative embodiment, the control channel is associated with a first identifier, and the first identifier is associated with a first time interval, where the first time interval is a time interval from the multiple control channels to the receiving time of the corresponding scheduled channel.
For example, if the first identifiers associated with the plurality of control channels are the same, the plurality of control channels are configured such that at least one first time interval is smaller than a first threshold value and at least one first time interval is larger than the first threshold value.
For example, if the first identifiers associated with the multiple control channels are different, the multiple control channels are configured such that the first time intervals are all greater than a first threshold value or the first time intervals are all less than the first threshold value.
The first identifier is a control resource set identifier or a control resource set pool identifier. The network device dynamically indicates or statically indicates or pre-configures the first identifier. The first threshold value is determined through network equipment configuration or through terminal equipment reporting.
In the communication method and apparatus provided in the embodiment of the present application, a network device sends a plurality of control channels to a terminal device, the terminal device receives at least one control channel of the plurality of control channels, and the plurality of control channels schedule the same physical channel. By the method, the plurality of control channels sent by the network equipment all have the same physical channel, so that the physical channels indicated by the plurality of control channels can be ensured to have the same resource allocation.
On the basis of the above embodiment, if the network device sends multiple control channels to the terminal device, correspondingly, multiple time domain resources transmitted by the control channels exist, and the terminal device cannot determine the positions of the time domain resources of the channels scheduled by the control channels. Two ways how the terminal device determines the location of the time domain resources of the channel scheduled by the control channel are provided below.
Fig. 3 is a signaling interaction diagram of another communication method according to an embodiment of the present application. As shown in fig. 3, on the basis of the above embodiment, the method includes:
s301, the terminal device receives at least one control channel in a plurality of control channels sent by the network device, and the plurality of control channels schedule the same physical channel.
The terminology, technical effects, technical features, and alternative embodiments of S301 can be understood with reference to S201 shown in fig. 2, and repeated descriptions will not be repeated here.
S302, the terminal device detects a first control channel in at least one control channel, and obtains time domain resources of the first control channel.
In this step, after the terminal device receives a first control channel of the multiple control channels sent by the network device, the first control system computer may be detected, so as to obtain the time domain resource of the first control channel.
It should be noted that, if the terminal device receives only one first control channel, only the control channel is detected, and if the terminal device receives a plurality of first control channels, all the received first control channels are detected.
In an optional implementation manner, the network device detects the at least one control channel at a time corresponding to the at least one control channel according to a state of the transmission configuration indication configured by the network device.
The embodiment of the present application does not limit how to demodulate the first control channel, and any detection mode of the control channel may be adopted. In some embodiments, detecting the first control channel of the at least one control channel may specifically be demodulating the first control channel of the at least one control channel.
For example, the terminal device may set the channel filtering parameter using the tc state indicated by the network device to correctly demodulate the first control channel.
S303, the terminal device determines a first time domain offset from the control channel to the scheduled channel according to the first control channel.
In this application, after acquiring the time domain resource of the first control channel, the terminal device may determine, according to the first control channel, a first time domain offset from the control channel to the scheduled channel.
In the embodiment of the present application, how to determine the first time domain offset from the control channel to the scheduled channel is not limited, and for example, the terminal device determines the first time domain offset from the start position of the control channel to the start position of the scheduled channel. Illustratively, the terminal device determines a first time domain offset from a symbol corresponding to a starting position of the control channel to a symbol of the scheduling channel. Illustratively, the terminal device determines a first time domain offset from a slot in which the control channel is located to a slot (slot) in which the scheduled channel is located.
Wherein, the unit of the first time domain offset is an orthogonal frequency division multiplexing multi-carrier modulation symbol or a time slot.
In some embodiments, the first time domain offset is a time domain offset of a second control channel to the scheduled channel, the second control channel being one of a plurality of control channels of the repeated transmission.
Wherein multiple control channels are transmitted repeatedly. Accordingly, the second control channel and the first control channel are control channels that are repeatedly transmitted.
In some embodiments, the second control channel is indicated by the network device. In some embodiments, the second control channel is the earliest transmitted control channel or the latest transmitted control channel or any control channel in between of the plurality of control channels that are repeatedly transmitted. In some embodiments, the network device dynamically indicates or statically indicates or pre-configures the second control channel.
S304, the terminal device determines a second time domain offset according to the first control channel and the second control channel, wherein the second time domain offset is the time domain offset from the first control channel to the second control channel.
In this step, a first time domain offset from the control channel to the scheduled channel is determined at the terminal device, and a second time domain offset may be determined according to the first control channel and the second control channel.
In an optional embodiment, the time domain shifting of the first control channel to the second control channel includes: the time domain offset from the starting position of the first control channel to the starting position of the second control channel or the time domain offset from the time slot of the first control channel to the time slot of the second control channel.
S305, the terminal device determines the time domain position of the scheduled channel according to the first time domain offset, the second time domain offset and the time domain resource of the first control channel.
In this step, after the device in the terminal determines the first time domain offset and the second time domain offset, the time domain position of the scheduled channel may be determined according to the first time domain offset, the second time domain offset, and the time domain resource of the first control channel.
Illustratively, the second control channel, the first control channel, and the scheduling channel are transmitted at t0, t1, and t2, respectively, t2-t0 can be determined by the first time domain offset, and t1-t0 can be determined by the second time domain offset, so that the time domain position t2 of the scheduled channel is (t2-t0) - (t1-t 0).
In an alternative embodiment, the terminal device receives or transmits the channel scheduled by the control channel at the position of the time domain resource of the channel scheduled by the control channel.
In the communication method provided by the embodiment of the present application, the terminal device receives at least one control channel of a plurality of control channels sent by the network device, and the plurality of control channels schedule the same physical channel. Then, the terminal device detects a first control channel in the at least one control channel, and acquires a time domain resource of the first control channel. The terminal device determines a first time domain offset of the control channel to the scheduled channel according to the first control channel. And the terminal equipment determines a second time domain offset according to the first control channel and the second control channel, wherein the second time domain offset is the time domain offset from the first control channel to the second control channel. And the terminal equipment determines the time domain position of the scheduled channel according to the first time domain offset, the second time domain offset and the time domain resource of the first control channel. By this way, if the network device sends multiple control channels, the terminal device can determine the position of the time domain resource of the channel scheduled by the control channel through any one of the multiple control channels, so that the terminal device can receive or transmit the channel scheduled by the repeated control channel at the correct time domain position.
On the basis of the above embodiments, another way of determining the location of the time domain resources of the channel scheduled by the control channel is provided below. Fig. 4 is a signaling interaction diagram of another communication method according to an embodiment of the present application. As shown in fig. 4, on the basis of the above embodiment, the method includes:
s401, the terminal equipment receives at least one control channel in a plurality of control channels sent by the network equipment, and the plurality of control channels schedule the same physical channel.
S402, the terminal device detects a first control channel in at least one control channel and obtains time domain resources of the first control channel.
Technical terms, technical effects, technical features, and alternative embodiments of S401 to S402 can be understood with reference to S301 to S302 shown in fig. 2, and repeated descriptions thereof will not be repeated here.
S403, the terminal device determines a first time domain offset from the control channel to the scheduled channel according to the first control channel.
In an alternative embodiment, the first time domain offset is a time domain offset of the first control channel to the scheduled channel.
In another alternative embodiment, the first time domain offset is a time domain offset from a third control channel to a scheduled channel, and the third control channel and the first control channel have different starting transmission positions.
S404, the terminal equipment determines the time domain position of the scheduled channel according to the first time domain offset and the time domain resource of the first control channel.
In this step, after determining the first time domain offset from the control channel to the scheduled channel, the terminal device may determine the time domain position of the scheduled channel according to the first time domain offset and the time domain resource of the first control channel.
Illustratively, the first control channel, the scheduled channel, and the third control channel are transmitted at time t0, time t1, and time t2, respectively. When the time domain resource at the time point t0 is known, and if the first time domain offset is t1-t0, the corresponding position t1 of the scheduled channel is (t1-t0) -t 0; if the first time domain offset is t2-t1, the corresponding position t1 of the scheduled channel is (t2-t0) - (t2-t1) + t 0.
In an alternative embodiment, the terminal device may receive or transmit the channel scheduled by the control channel at the location of the time domain resource of the channel scheduled by the control channel.
In the communication method provided in the embodiment of the present application, the terminal device receives at least one control channel of multiple control channels sent by the network device, and the multiple control channels schedule the same physical channel. The terminal equipment detects a first control channel in at least one control channel and obtains time domain resources of the first control channel. The terminal device determines a first time domain offset of the control channel to the scheduled channel according to the first control channel. And determining the time domain position of the scheduled channel according to the first time domain offset and the time domain resource of the first control channel. By this way, if the network device sends multiple control channels, the terminal device can determine the position of the time domain resource of the channel scheduled by the control channel through any one of the multiple control channels, so that the terminal device can receive or transmit the channel scheduled by the repeated control channel at the correct time domain position.
Those of ordinary skill in the art will understand that: all or part of the steps for implementing the method embodiments may be implemented by hardware related to program information, the program may be stored in a computer readable storage medium, and the program executes the steps including the method embodiments when executed; and the aforementioned storage medium includes: various media that can store program codes, such as ROM, RAM, magnetic or optical disks.
Fig. 5 is a schematic structural diagram of a communication device according to an embodiment of the present application. The communication means may be implemented by software, hardware, or a combination of both to execute the above-described communication method on the terminal device side. As shown in fig. 5, the communication apparatus 500 includes: a storage module 501, a receiving module 502, a processing module 503 and a transmitting module 504.
The storage module 501 is used for storing computer programs;
a receiving module 502, configured to receive at least one control channel of multiple control channels sent by a network device, where the multiple control channels schedule a same physical channel.
In an alternative embodiment, the starting positions of the time domain resources of at least two transmitted control channels of the plurality of control channels are different.
In an alternative embodiment, the apparatus further comprises:
a processing module 503 is configured to detect at least one control channel of a plurality of control channels.
In an optional implementation manner, the processing module 503 is specifically configured to detect a first control channel in the at least one control channel, and acquire a time domain resource of the first control channel.
In an optional embodiment, the processing module 503 is further configured to determine a first time domain offset from the control channel to the scheduled channel according to the first control channel.
In an alternative embodiment, the processing module 503 is specifically configured to determine a first time domain offset from a starting position of the control channel to a starting position of the scheduling channel.
In an optional implementation, the processing module 503 is specifically configured to determine a first time domain offset from a symbol corresponding to a starting position of the control channel to a symbol of the scheduling channel.
In an alternative embodiment, the processing module 503 is specifically configured to determine a first time domain offset from a time slot in which the control channel is located to a time slot in which the scheduled channel is located.
In an alternative embodiment, the unit of the first time domain offset is an orthogonal frequency division multiplexing multi-carrier modulation symbol or a time slot.
In an alternative embodiment, multiple control channels are transmitted repeatedly.
In an alternative embodiment, the first time domain offset is a time domain offset from the second control channel to the scheduled channel, and the second control channel is one of a plurality of control channels that are repeatedly transmitted.
In an alternative embodiment, the second control channel and the first control channel are control channels that are repeatedly transmitted.
In an alternative embodiment, the second control channel is indicated by the network device.
In an alternative embodiment, the second control channel is the earliest control channel or the latest control channel or any control channel in the middle among a plurality of control channels which are repeatedly transmitted.
In an alternative embodiment, the network device dynamically indicates or statically indicates or pre-configures the second control channel.
In an optional implementation manner, the processing module 503 is further configured to determine a second time domain offset according to the first control channel and the second control channel, where the second time domain offset is a time domain offset from the first control channel to the second control channel.
In an optional embodiment, the time domain shifting of the first control channel to the second control channel includes:
the time domain offset from the starting position of the first control channel to the starting position of the second control channel or the time domain offset from the time slot in which the first control channel is positioned to the time slot in which the second control channel is positioned.
In an optional implementation manner, the processing module 503 is further configured to determine a time domain position of the scheduled channel according to the first time domain offset, the second time domain offset, and the time domain resource of the first control channel.
In an alternative embodiment, the first time domain offset is a time domain offset of the first control channel to the scheduled channel.
In an alternative embodiment, the first time domain offset is a time domain offset from a third control channel to a scheduled channel, and starting transmission positions of the third control channel and the first control channel are different.
In an optional implementation manner, the processing module 503 is further configured to determine a time domain position of the scheduled channel according to the first time domain offset and the time domain resource of the first control channel.
In an optional implementation manner, the processing module 503 is specifically configured to detect at least one control channel at a time corresponding to the at least one control channel according to a state of a transmission configuration indication configured by the network device.
In an optional implementation manner, the control channel is a downlink control channel PDCCH or an uplink control channel PUCCH.
In an optional implementation manner, the channel scheduled by the control channel is a physical downlink shared channel PDSCH or a physical uplink shared channel PUSCH or a physical uplink control channel PUCCH.
In an alternative embodiment, the PUCCH is used to carry ACK/NACK information for the PDSCH.
In an optional embodiment, the apparatus further comprises: and the transmission module is used for receiving or transmitting the channel scheduled by the control channel at the position of the time domain resource of the channel scheduled by the control channel.
In an alternative embodiment, the control channel is associated with a first identifier, and the first identifier is associated with a first time interval, where the first time interval is a time interval from a plurality of control channels to a receiving time of a corresponding scheduled channel.
In an optional implementation manner, if the first identifiers associated with the multiple control channels are different, the at least one first time interval is smaller than a first threshold and the at least one first time interval is larger than the first threshold.
In an optional embodiment, if the at least one first time interval is smaller than a first threshold and the at least one first time interval is greater than the first threshold, the first identifiers associated with the multiple control channels are the same.
In an optional embodiment, the first identifier is a control resource set identifier or a control resource set pool identifier.
In an alternative embodiment, the network device dynamically indicates or statically indicates or pre-configures the first identifier.
In an optional implementation manner, the first threshold is determined through network device configuration or through terminal device reporting.
The communication apparatus provided in the embodiment of the present application may perform the actions of the communication method on the terminal device side in the foregoing method embodiments, and the implementation principle and the technical effect are similar, which are not described herein again.
Fig. 6 is a schematic structural diagram of another communication device according to an embodiment of the present application. The communication apparatus may be implemented by software, hardware, or a combination of both to execute the communication method on the network device side described above. As shown in fig. 6, the communication apparatus 600 includes: a storage module 601 and a sending module 602;
the storage module 601 is used for storing computer programs;
a sending module 602, configured to send multiple control channels to a terminal device, where the multiple control channels schedule a same physical channel.
In an alternative embodiment, the starting positions of the time domain resources of at least two transmitted control channels in the plurality of control channels are different.
In an optional implementation manner, the sending module 602 is specifically configured to transmit a plurality of control channels to the terminal device through at least one transmission configuration indication.
In an optional implementation manner, the control channel is a downlink control channel PDCCH or an uplink control channel PUCCH.
In an optional implementation manner, the channel scheduled by the control channel is a physical downlink shared channel PDSCH or a physical uplink shared channel PUSCH or a physical uplink control channel PUCCH.
In an alternative embodiment, the PUCCH is used to carry ACK/NACK information for the PDSCH.
In an alternative embodiment, the control channel is associated with a first identifier, and the first identifier is associated with a first time interval, where the first time interval is a time interval from a plurality of control channels to a receiving time of a corresponding scheduled channel.
In an optional embodiment, if the first identifiers associated with the multiple control channels are the same, the multiple control channels are configured such that at least one first time interval is smaller than a first threshold and at least one first time interval is larger than the first threshold.
In an optional implementation manner, if the first identifiers associated with the multiple control channels are different, the multiple control channels are configured such that the first time intervals are all greater than a first threshold value or the first time intervals are all smaller than the first threshold value.
In an optional embodiment, the first identifier is a control resource set identifier or a control resource set pool identifier.
In an alternative embodiment, the network device dynamically indicates or statically indicates or pre-configures the first identifier.
In an optional implementation manner, the first threshold is determined through network device configuration or through terminal device reporting.
The communication apparatus provided in the embodiment of the present application may perform the actions of the communication method on the network device side in the foregoing method embodiments, and the implementation principle and the technical effect are similar, which are not described herein again.
Fig. 7 is a schematic structural diagram of a terminal device according to an embodiment of the present application. As shown in fig. 7, the terminal device may include: a processor 71 (e.g., a CPU), a memory 72, a receiver 73, and a transmitter 74; the receiver 73 and the transmitter 74 are coupled to the processor 71, the processor 71 controlling the receiving action of the receiver 73 and the processor 71 controlling the transmitting action of the transmitter 74. The memory 72 may comprise a high-speed RAM memory, and may also include a non-volatile memory NVM, such as at least one disk memory, in which various information may be stored for performing various processing functions and implementing the method steps of the embodiments of the present application. Optionally, the terminal device according to the embodiment of the present application may further include: a power supply 75, a communication bus 76, and a communication port 77. The receiver 73 and the transmitter 74 may be integrated in a transceiver of the terminal device, or may be separate transceiving antennas on the terminal device. The communication bus 76 is used to enable communication connections between the elements. The communication port 77 is used for connection and communication between the terminal device and other peripherals.
In the embodiment of the present application, the memory 72 is used for storing computer executable program codes, and the program codes include information; when the processor 71 executes the information, the information causes the processor 71 to execute the processing action of the terminal device in the foregoing method embodiment, causes the transmitter 74 to execute the transmitting action of the terminal device in the foregoing method embodiment, and causes the receiver 73 to execute the receiving action of the terminal device in the foregoing method embodiment, which has similar implementation principles and technical effects, and is not described herein again.
Fig. 8 is a schematic structural diagram of a network device according to an embodiment of the present application. As shown in fig. 8, the access network device may include: a processor 81 (e.g., CPU) and memory 82; the memory 82 may comprise a high-speed RAM memory, and may also include a non-volatile memory NVM, such as at least one disk memory, in which various information may be stored for performing various processing functions and implementing the method steps of the embodiments of the present application. Optionally, the network device according to the embodiment of the present application may further include: a power supply 85, a communication bus 86, and a communication port 87. The communication bus 86 is used to enable communication connections between the elements. The communication port 87 is used for connection communication between the network device and other peripherals.
In the embodiment of the present application, the memory 82 is used for storing computer executable program codes, and the program codes include information; when the processor 81 executes the information, the information enables the processor 81 to execute the processing actions of the network device in the above method embodiments, which have similar implementation principles and technical effects, and are not described herein again.
The embodiment of the present application further provides a communication system, which includes a terminal device and a network device, where the terminal device executes the communication method on the terminal device side, and the access network device executes the communication method on the network device side.
The embodiment of the application also provides a chip which comprises a processor and an interface. Wherein the interface is used for inputting and outputting data or instructions processed by the processor. The processor is configured to perform the methods provided in the above method embodiments. The chip can be applied to terminal equipment and network equipment.
The present invention also provides a computer-readable storage medium, which may include: various media capable of storing program codes, such as a usb disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, are specifically, the computer-readable storage medium stores program information, and the program information is used for the communication method of the terminal device side or the communication method of the network device side.
The embodiment of the present application also provides a program, which is used to execute the communication method on the terminal device side or the communication method on the network device side provided in the above method embodiments when executed by a processor.
The present application further provides a program product, such as a computer-readable storage medium, where instructions are stored, and when the program product runs on a computer, the program product causes the computer to execute the communication method on the terminal device side or the communication method on the network device side provided in the foregoing method embodiments.
In the above embodiments, the implementation may be wholly or partially realized by software, hardware, firmware, or any combination thereof. When implemented in software, may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. The procedures or functions according to the embodiments of the invention are generated in whole or in part when the computer program instructions are loaded and executed on a computer. The computer may be a general purpose computer, a special purpose computer, a network of computers, or other programmable device. The computer instructions may be stored in a computer readable storage medium or transmitted from one computer readable storage medium to another, for example, the computer instructions may be transmitted from one website, computer, server, or data center to another website, computer, server, or data center by wire (e.g., coaxial cable, fiber optic, Digital Subscriber Line (DSL)) or wirelessly (e.g., infrared, wireless, microwave, etc.). The computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device, such as a server, a data center, etc., that incorporates one or more of the available media. The usable medium may be a magnetic medium (e.g., floppy Disk, hard Disk, magnetic tape), an optical medium (e.g., DVD), or a semiconductor medium (e.g., Solid State Disk (SSD)), among others.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.

Claims (94)

  1. A method of communication, comprising:
    receiving at least one control channel of a plurality of control channels transmitted by a network device, the plurality of control channels scheduling the same physical channel.
  2. The method of claim 1, wherein starting positions of time domain resources of at least two transmitted control channels of the plurality of control channels are different.
  3. The method of claim 1, further comprising:
    detecting at least one of the plurality of control channels.
  4. The method of claim 3, wherein the detecting at least one of the plurality of control channels comprises:
    and detecting a first control channel in the at least one control channel, and acquiring time domain resources of the first control channel.
  5. The method of claim 4, further comprising:
    a first time domain offset of a control channel to a scheduled channel is determined based on the first control channel.
  6. The method of claim 5, wherein determining the first time domain offset of the control channel to the scheduled channel comprises:
    a first time domain offset from a starting position of a control channel to a starting position of a scheduling channel is determined.
  7. The method of claim 5, wherein determining the first time domain offset of the control channel from the scheduled channel comprises:
    a first time domain offset from a symbol corresponding to a starting position of the control channel to a symbol of the scheduling channel is determined.
  8. The method of claim 5, wherein determining the first time domain offset of the control channel to the scheduled channel comprises:
    a first time domain offset is determined from a time slot in which the control channel is located to a time slot in which the scheduled channel is located.
  9. The method of claim 5, wherein the first time domain offset is in units of Orthogonal Frequency Division Multiplexing (OFDM) multicarrier modulation symbols or time slots.
  10. The method of claim 5, wherein the plurality of control channels are transmitted repeatedly.
  11. The method of claim 10, wherein the first time domain offset is a time domain offset of a second control channel to a scheduled channel, and wherein the second control channel is one of the plurality of control channels that is repeatedly transmitted.
  12. The method of claim 11, wherein the second control channel and the first control channel are control channels that are repeatedly transmitted.
  13. The method of claim 12, wherein the second control channel is indicated by a network device.
  14. The method of claim 11, wherein the second control channel is an earliest transmitted control channel or a latest transmitted control channel or any intermediate control channel among the plurality of control channels of the repeated transmission.
  15. The method of claim 11, wherein the network device dynamically indicates or statically indicates or pre-configures the second control channel.
  16. The method of claim 11, further comprising:
    and determining a second time domain offset according to the first control channel and the second control channel, wherein the second time domain offset is the time domain offset from the first control channel to the second control channel.
  17. The method of claim 16, wherein the time-domain shifting of the first control channel to the second control channel comprises:
    and the time domain offset from the starting position of the first control channel to the starting position of the second control channel or the time domain offset from the time slot in which the first control channel is positioned to the time slot in which the second control channel is positioned.
  18. The method of claim 17, further comprising:
    and determining the time domain position of the scheduled channel according to the first time domain offset, the second time domain offset and the time domain resource of the first control channel.
  19. The method of claim 5, wherein the first time domain offset is a time domain offset of the first control channel to a scheduled channel.
  20. The method of claim 5, wherein the first time domain offset is a time domain offset from a third control channel to a scheduled channel, and wherein the third control channel and the first control channel have different starting transmission positions.
  21. The method according to claim 19 or 20, further comprising:
    and determining the time domain position of the scheduled channel according to the first time domain offset and the time domain resource of the first control channel.
  22. The method according to any of claims 4-20, wherein said detecting at least one of said plurality of control channels comprises:
    and detecting the at least one control channel at the corresponding moment of the at least one control channel according to the state of the transmission configuration indication configured by the network equipment.
  23. The method according to any of claims 1-20, wherein the control channel is a downlink control channel, PDCCH, or an uplink control channel, PUCCH.
  24. The method according to any of the claims 23, wherein the scheduled channel of the control channel is a physical downlink shared channel, PDSCH, or a physical uplink shared channel, PUSCH, or a physical uplink control channel, PUCCH.
  25. The method of claim 24, wherein the PUCCH is used to carry ACK/NACK information for the PDSCH.
  26. The method of claim 21, further comprising:
    and receiving or transmitting the channel scheduled by the control channel at the position of the time domain resource of the channel scheduled by the control channel.
  27. The method of any of claims 1-20, wherein the control channel has associated therewith a first indicator, wherein the first indicator is associated with a first time interval, and wherein the first time interval is a time interval from a reception time of the plurality of control channels to a corresponding scheduled channel.
  28. The method of claim 27, wherein at least one of the first time intervals is less than a first threshold value and at least one of the first time intervals is greater than the first threshold value if the first identifiers associated with the plurality of control channels are different.
  29. The method of claim 28, wherein the first identities associated with the plurality of control channels are the same if at least one of the first time intervals is less than the first threshold value and at least one of the first time intervals is greater than the first threshold value.
  30. The method of claim 27, wherein the first identifier is a control resource set identifier or a control resource set pool identifier.
  31. The method of claim 27, wherein the network device dynamically indicates or statically indicates or pre-configures the first identifier.
  32. The method of claim 28, wherein the first threshold is determined by the network device configuration or by a terminal device reporting.
  33. A method of communication, comprising:
    transmitting a plurality of control channels to a terminal device, the plurality of control channels scheduling a same physical channel.
  34. The method of claim 33, wherein starting positions of time domain resources of at least two transmitted control channels of the plurality of control channels are different.
  35. The method of claim 33, wherein the sending a plurality of control channels to a terminal device comprises:
    transmitting the plurality of control channels to the terminal device via at least one transmission control indication.
  36. The method according to any of claims 33-35, wherein the control channel is a downlink control channel, PDCCH, or an uplink control channel, PUCCH.
  37. The method according to any of the claims 36, wherein the scheduled channel of the control channel is a physical downlink shared channel, PDSCH, or a physical uplink shared channel, PUSCH, or a physical uplink control channel, PUCCH.
  38. The method of any of claim 37, wherein the PUCCH is used to carry ACK/NACK information for the PDSCH.
  39. The method of any of claims 33-35, wherein the control channel has associated therewith a first indicator, wherein the first indicator is associated with a first time interval, and wherein the first time interval is a time interval from a reception time of the plurality of control channels to a corresponding scheduled channel.
  40. The method of claim 39, wherein if the first identifications associated with the plurality of control channels are the same, the plurality of control channels are configured such that at least one of the first time intervals is less than a first threshold value and at least one of the first time intervals is greater than the first threshold value.
  41. The method of claim 40, wherein if the first identifications associated with the plurality of control channels are different, the plurality of control channels are configured such that the first time intervals are all greater than the first threshold value or the first time intervals are all less than the first threshold value.
  42. The method of claim 39, wherein the first identifier is a control resource set identifier or a control resource set pool identifier.
  43. The method of claim 39, wherein a network device dynamically indicates or statically indicates or pre-configures the first identifier.
  44. The method of claim 41, wherein the first threshold value is determined by network device configuration or terminal device reporting.
  45. A communications apparatus, comprising:
    a receiving module, configured to receive at least one control channel of multiple control channels sent by a network device, where the multiple control channels schedule a same physical channel.
  46. The apparatus of claim 45, wherein starting positions of time domain resources of at least two transmitted control channels of the plurality of control channels are different.
  47. The apparatus of claim 45, further comprising:
    a processing module to detect at least one of the plurality of control channels.
  48. The apparatus of claim 47, wherein the processing module is specifically configured to detect a first control channel of the at least one control channel, and obtain time domain resources of the first control channel.
  49. The apparatus of claim 48, wherein the processing module is further configured to determine a first time domain offset of a control channel to a scheduled channel according to the first control channel.
  50. The apparatus of claim 49, wherein the processing module is specifically configured to determine a first time domain offset from a starting position of a control channel to a starting position of a scheduling channel.
  51. The apparatus of claim 49, wherein the processing module is specifically configured to determine a first time domain offset from a symbol corresponding to a starting position of the control channel to a symbol of the scheduling channel.
  52. The apparatus of claim 49, wherein the processing module is specifically configured to determine a first time domain offset from a time slot in which the control channel is located to a time slot in which the scheduled channel is located.
  53. The apparatus of claim 49, wherein the first time domain offset is in units of Orthogonal Frequency Division Multiplexing (OFDM) multicarrier modulation symbols or time slots.
  54. The apparatus of claim 49, wherein the plurality of control channels are transmitted repeatedly.
  55. The apparatus of claim 54, wherein the first time domain offset is a time domain offset of a second control channel to a scheduled channel, and wherein the second control channel is one of the plurality of control channels that is repeatedly transmitted.
  56. The apparatus of claim 55, wherein the second control channel and the first control channel are repeatedly transmitted control channels.
  57. The apparatus of claim 55, wherein the second control channel is indicated by a network device.
  58. The apparatus of claim 55, wherein the second control channel is an earliest transmitted control channel or a latest transmitted control channel or any intermediate control channel among the plurality of control channels of the repeated transmission.
  59. The apparatus of claim 55, wherein the network device dynamically indicates or statically indicates or pre-configures the second control channel.
  60. The apparatus of claim 55, wherein the processing module is further configured to determine a second time domain offset from the first control channel and the second control channel, and wherein the second time domain offset is a time domain offset from the first control channel to the second control channel.
  61. The apparatus of claim 60, wherein the time domain shifting of the first control channel to the second control channel comprises:
    and the time domain offset from the starting position of the first control channel to the starting position of the second control channel or the time domain offset from the time slot in which the first control channel is positioned to the time slot in which the second control channel is positioned.
  62. The apparatus of claim 61, wherein the processing module is further configured to determine a time domain location of the scheduled channel according to the first time domain offset, the second time domain offset, and a time domain resource of the first control channel.
  63. The apparatus of claim 49, wherein the first time domain offset is a time domain offset of the first control channel to a scheduled channel.
  64. The apparatus of claim 49, wherein the first time domain offset is a time domain offset from a third control channel to a scheduled channel, and wherein the third control channel and the first control channel have different starting transmission positions.
  65. The apparatus of claim 63 or 64, wherein the processing module is further configured to determine the time domain position of the scheduled channel according to the first time domain offset and the time domain resource of the first control channel.
  66. The apparatus according to any of claims 48 to 64, wherein the processing module is specifically configured to detect the at least one control channel at a time corresponding to the at least one control channel according to a status of a transmission configuration indication configured by the network device.
  67. The apparatus according to any of claims 45-64, wherein the control channel is a Downlink control channel, PDCCH, or an uplink control channel, PUCCH.
  68. The apparatus according to claim 67, wherein the scheduled channel of the control channel is a Physical Downlink Shared Channel (PDSCH) or a Physical Uplink Shared Channel (PUSCH) or a Physical Uplink Control Channel (PUCCH).
  69. The apparatus of claim 68, wherein the PUCCH is used to carry acknowledgement/negative acknowledgement (ACK/NACK) information for the PDSCH.
  70. The apparatus of claim 65, further comprising: and the transmission module is used for receiving or transmitting the channel scheduled by the control channel at the position of the time domain resource of the channel scheduled by the control channel.
  71. The apparatus of any of claims 45-64, wherein the control channels have associated therewith a first indicator, wherein the first indicator is associated with a first time interval, and wherein the first time interval is a time interval from a reception time of the plurality of control channels to a corresponding scheduled channel.
  72. The apparatus as claimed in claim 71, wherein if the first identifiers associated with the plurality of control channels are different, at least one of the first time intervals is less than a first threshold value and at least one of the first time intervals is greater than the first threshold value.
  73. The apparatus of claim 72, wherein the first identities associated with the plurality of control channels are the same if at least one of the first time intervals is less than the first threshold value and at least one of the first time intervals is greater than the first threshold value.
  74. The apparatus of claim 71, wherein the first identifier is a control resource set identifier or a control resource set pool identifier.
  75. The apparatus of claim 71, wherein the network device dynamically indicates or statically indicates or pre-configures the first identifier.
  76. The apparatus of claim 72, wherein the first threshold is determined by the network device configuration or by a terminal device reporting.
  77. A communications apparatus, comprising:
    a sending module, configured to send multiple control channels to a terminal device, where the multiple control channels schedule the same physical channel.
  78. The apparatus of claim 77, wherein starting positions of time domain resources of at least two transmitted control channels of the plurality of control channels are different.
  79. The apparatus of claim 77, wherein the sending module is specifically configured to transmit the plurality of control channels to the terminal device via at least one transmission configuration indication.
  80. The apparatus according to any of claims 77-79, wherein the control channel is a downlink control channel, PDCCH, or an uplink control channel, PUCCH.
  81. The apparatus according to claim 80, wherein the scheduled channel of the control channel is a Physical Downlink Shared Channel (PDSCH) or a Physical Uplink Shared Channel (PUSCH) or a Physical Uplink Control Channel (PUCCH).
  82. The apparatus of any of claims 81, wherein the PUCCH is used to carry acknowledgement/negative acknowledgement (ACK/NACK) information for the PDSCH.
  83. The apparatus of any of claims 77-79, wherein the control channels have associated therewith a first indicator, wherein the first indicator is associated with a first time interval, and wherein the first time interval is a time interval from a reception time of the plurality of control channels to a corresponding scheduled channel.
  84. The apparatus as claimed in claim 83, wherein if the first identifications associated with the plurality of control channels are the same, the plurality of control channels are configured such that at least one of the first time intervals is less than a first threshold value and at least one of the first time intervals is greater than the first threshold value.
  85. The apparatus of claim 84, wherein the plurality of control channels are configured such that the first time intervals are all greater than the first threshold value or the first time intervals are all less than the first threshold value if the first identifications of the plurality of control channel associations are different.
  86. The apparatus of claim 83, wherein the first identifier is a control resource set identifier or a control resource set pool identifier.
  87. The apparatus of claim 83, wherein a network device dynamically indicates or statically indicates or pre-configures the first identifier.
  88. The apparatus of claim 85, wherein the first threshold is determined through network device configuration or through terminal device reporting.
  89. A terminal device, comprising: a processor, a memory, a transmitter, and a receiver;
    the memory is used for storing a computer program, and the processor is used for calling and running the computer program stored in the memory and executing the method according to any one of claims 1-26;
    the transmitter is used for executing the transmitting action of the terminal equipment, and the receiver is used for executing the receiving action of the terminal equipment.
  90. A network device, comprising: a processor, a memory, a transmitter, and a receiver;
    the memory is used for storing a computer program, and the processor is used for calling and running the computer program stored in the memory and executing the method according to any one of claims 27-32;
    the transmitter is used for executing the sending action of the network equipment, and the receiver is used for executing the receiving action of the network equipment.
  91. A chip, comprising: a processor for calling and running a computer program from a memory so that a device on which the chip is installed performs the method of any one of claims 1-26.
  92. A computer-readable storage medium for storing a computer program which causes a computer to perform the method of any one of claims 27-32.
  93. A computer program product comprising computer program information to make a computer execute the method according to any of claims 1-32.
  94. A computer program, characterized in that the computer program causes a computer to perform the method according to any of claims 1-32.
CN202080085249.0A 2020-02-18 2020-02-18 Communication method and device Pending CN114902762A (en)

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CN108631969B (en) * 2017-03-21 2021-01-15 中国移动通信有限公司研究院 Indication information sending method, indication information receiving method, base station and terminal
US10716133B2 (en) * 2017-09-08 2020-07-14 Apple Inc. Enhancement of performance of ultra-reliable low-latency communication
US11026257B2 (en) * 2018-06-29 2021-06-01 Qualcomm Incorporated PDCCH with repetition
CN110535596B (en) * 2018-11-02 2022-07-12 中兴通讯股份有限公司 Control channel detection method, control channel detection device, information element transmission method, information element transmission device, information element transmission equipment and medium

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