CN114071501A - Downlink transmission method, downlink transmission device, terminal and network side equipment - Google Patents
Downlink transmission method, downlink transmission device, terminal and network side equipment Download PDFInfo
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- CN114071501A CN114071501A CN202010779345.7A CN202010779345A CN114071501A CN 114071501 A CN114071501 A CN 114071501A CN 202010779345 A CN202010779345 A CN 202010779345A CN 114071501 A CN114071501 A CN 114071501A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/02—Arrangements for optimising operational condition
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/02—Power saving arrangements
- H04W52/0209—Power saving arrangements in terminal devices
- H04W52/0261—Power saving arrangements in terminal devices managing power supply demand, e.g. depending on battery level
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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Abstract
The application discloses a downlink transmission method, a downlink transmission device, a terminal and network side equipment, and belongs to the technical field of communication. The downlink transmission method of the terminal comprises the following steps: ignoring a first downlink resource and/or ignoring an uplink feedback corresponding to the first downlink resource, where the first downlink resource is a resource in a downlink semi-persistent resource configured by a network side device, and the first downlink resource is determined by a preconfigured first condition or first indication information sent by the network side device. In the application, the terminal can ignore the first downlink resource in the downlink semi-persistent resource or the uplink feedback corresponding to the first downlink resource according to the pre-configured condition or the indication information of the network side device, so that the terminal does not need to receive all downlink transmissions and provide all downlink transmission feedback information, thereby saving the electric energy of the terminal and saving the uplink feedback resource.
Description
Technical Field
The present application belongs to the field of communication technology, and in particular, relates to a downlink transmission method, a downlink transmission apparatus, a terminal, and a network side device.
Background
In the prior art, for downlink transmission of a service in a specific period, since data arrival time may change, a network side needs to configure multiple downlink transmission resources in each period, and a terminal needs to receive all downlink transmissions and provide related feedback information. However, the plurality of downlink transmission resources do not actually have data transmission, which results in higher power consumption of the terminal and waste of uplink feedback resources.
Disclosure of Invention
An object of the embodiments of the present application is to provide a downlink transmission method, a downlink transmission apparatus, a terminal, and a network side device, which can solve the problems of high power consumption and uplink feedback resource waste caused by the terminal needing to receive all downlink transmissions and provide related feedback information.
In order to solve the technical problem, the present application is implemented as follows:
in a first aspect, a downlink transmission method is provided, which is applied to a terminal and includes:
ignoring a first downlink resource and/or ignoring an uplink feedback corresponding to the first downlink resource, where the first downlink resource is a resource in a downlink semi-persistent resource configured by a network side device, and the first downlink resource is determined by a preconfigured first condition or first indication information sent by the network side device.
In a second aspect, a downlink transmission apparatus is provided, which is applied to a terminal, and includes:
the control module is configured to ignore a first downlink resource and/or ignore an uplink feedback corresponding to the first downlink resource, where the first downlink resource is a resource in a downlink semi-persistent resource configured by a network side device, and the first downlink resource is determined by a preconfigured first condition or first indication information sent by the network side device.
In a third aspect, a downlink transmission method is provided, which is applied to a network side device, and includes:
the method includes the steps of pre-configuring a first condition or sending first indication information to a terminal, wherein the first condition or the first indication information is used for indicating the terminal to ignore a first downlink resource and/or ignore uplink feedback corresponding to the first downlink resource, and the first downlink resource is a resource in downlink semi-persistent resources configured by network side equipment.
In a fourth aspect, a downlink transmission apparatus is provided, which is applied to a network side device, and includes:
an execution module, configured to pre-configure a first condition or send first indication information to a terminal, where the first condition or the first indication information is used to indicate the terminal to ignore a first downlink resource and/or ignore an uplink feedback corresponding to the first downlink resource, and the first downlink resource is a resource in downlink semi-persistent resources configured by the network side device.
In a fifth aspect, there is provided a terminal comprising a processor, a memory, and a program or instructions stored on the memory and executable on the processor, which when executed by the processor, performs the steps of the method according to the first aspect.
In a sixth aspect, a network-side device is provided, which comprises a processor, a memory, and a program or instructions stored on the memory and executable on the processor, and when executed by the processor, the program or instructions implement the steps of the method according to the third aspect.
In a seventh aspect, there is provided a readable storage medium on which a program or instructions are stored, which program or instructions, when executed by a processor, implement the steps of the method according to the first aspect, or implement the steps of the method according to the third aspect.
In an eighth aspect, a chip is provided, where the chip includes a processor and a communication interface, where the communication interface is coupled to the processor, and the processor is configured to execute a network-side device program or instruction, implement the method according to the first aspect, or implement the method according to the third aspect.
In the embodiment of the application, the terminal may ignore the first downlink resource in the downlink semi-persistent resource or the uplink feedback corresponding to the first downlink resource according to the preconfigured condition or the indication information of the network side device, so that the terminal does not need to receive all downlink transmissions and does not need to provide all downlink transmission feedback information, thereby saving the power of the terminal and saving the uplink feedback resource.
Drawings
FIG. 1 is a block diagram of a wireless communication system to which embodiments of the present application are applicable;
fig. 2 is a flowchart of a downlink transmission method according to an embodiment of the present application;
fig. 3 is a structural diagram of a downlink transmission apparatus according to an embodiment of the present application;
fig. 4 is a flowchart of a downlink transmission method according to an embodiment of the present application;
fig. 5 is a structural diagram of a downlink transmission apparatus according to an embodiment of the present application;
fig. 6 is a block diagram of a communication device provided in an embodiment of the present application;
fig. 7 is a hardware structure diagram of a network side device according to an embodiment of the present application;
fig. 8 is a hardware configuration diagram of a terminal according to an embodiment of the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some, but not all, embodiments of the present application. 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 application.
The terms first, second and the like in the description and in the claims of the present application are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used are interchangeable under appropriate circumstances such that embodiments of the application can be practiced in sequences other than those illustrated or described herein, and the terms "first" and "second" used herein generally do not denote any order, nor do they denote any order, for example, the first object may be one or more. In addition, "and/or" in the specification and the claims means at least one of connected objects, and a character "/" generally means that a preceding and succeeding related objects are in an "or" relationship.
It is noted that the techniques described in the embodiments of the present application are not limited to Long Term Evolution (LTE)/LTE Evolution (LTE-Advanced) systems, but may also be used in other wireless communication systems, such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), Single-carrier Frequency-Division Multiple Access (SC-FDMA), and other systems. The terms "system" and "network" in the embodiments of the present application are often used interchangeably, and the described techniques can be used for both the above-mentioned systems and radio technologies, as well as for other systems and radio technologies. However, the following description describes a New Radio (NR) system for purposes of example, and NR terminology is used in much of the description below, although the techniques may also be applied to applications other than NR system applications, such as 6th Generation (6G) communication systems.
Fig. 1 shows a block diagram of a wireless communication system to which embodiments of the present application are applicable. The wireless communication system includes a terminal 11 and a network-side device 12. Wherein, the terminal 11 may also be called as a terminal Device or a User Equipment (UE), the terminal 11 may be a Mobile phone, a Tablet Personal Computer (Tablet Personal Computer), a Laptop Computer (Laptop Computer) or a notebook Computer, a Personal Digital Assistant (PDA), a palmtop Computer, a netbook, a super-Mobile Personal Computer (UMPC), a Mobile Internet Device (MID), a Wearable Device (Wearable Device) or a vehicle-mounted Device (VUE), a pedestrian terminal (PUE), and other terminal side devices, the Wearable Device includes: bracelets, earphones, glasses and the like. It should be noted that the embodiment of the present application does not limit the specific type of the terminal 11. The network-side device 12 may be a Base Station or a core network, where the Base Station may be referred to as a node B, an evolved node B, an access Point, a Base Transceiver Station (BTS), a radio Base Station, a radio Transceiver, a Basic Service Set (BSS), an Extended Service Set (ESS), a node B, an evolved node B (eNB), a home node B, a WLAN access Point, a WiFi node, a Transmit Receiving Point (TRP), or some other suitable terminology in the field, as long as the same technical effect is achieved, the Base Station is not limited to a specific technical vocabulary, and it should be noted that, in the embodiment of the present application, only the Base Station in the NR system is taken as an example, but a specific type of the Base Station is not limited.
The downlink transmission method, the downlink transmission apparatus, the terminal and the network side device provided in the embodiments of the present application are described in detail below with reference to the accompanying drawings through specific embodiments and application scenarios thereof.
Fig. 2 is a flowchart of a downlink transmission method provided in an embodiment of the present application, and as shown in fig. 2, the downlink transmission method is applied to a terminal, and the method includes the following steps:
step 201: ignoring a first downlink resource and/or ignoring an uplink feedback corresponding to the first downlink resource, where the first downlink resource is a resource in a downlink semi-persistent resource configured by a network side device, and the first downlink resource is determined by a preconfigured first condition or first indication information sent by the network side device.
The foregoing ignoring of the first downlink resource may be understood as not receiving a downlink channel of the first downlink resource, and may also be understood as discarding downlink data of the first downlink resource. The ignoring of the uplink feedback corresponding to the first downlink resource may be understood as not sending the uplink feedback information corresponding to the first downlink resource to the network side device.
Before this step, the network side device may send first indication information to the terminal, and the terminal receives the first indication information sent by the network side device, where the first indication information is used to indicate the terminal to ignore the first downlink resource and/or ignore an uplink feedback corresponding to the first downlink resource. The network side device may also pre-configure a first condition, where the first condition is used to instruct the terminal to ignore the first downlink resource and/or ignore the uplink feedback corresponding to the first downlink resource. The first condition may also be agreed upon by a protocol, i.e. the first condition is preconfigured by the protocol.
Before this step, the network side device may further send downlink Semi-Persistent resource configuration information to the terminal, and the terminal receives the downlink Semi-Persistent resource configuration information issued by the network side device, where the downlink Semi-Persistent resource configuration information is used to configure a downlink Semi-Persistent resource, such as a Semi-Persistent Scheduling (SPS) resource, for the terminal, and the downlink Semi-Persistent resource configuration information is, for example, SPS configuration information.
The first indication information may be carried in the downlink semi-persistent resource allocation information, the downlink semi-persistent resource allocation information may be carried in the first indication information, and the first indication information and the downlink semi-persistent resource allocation information may be two independent information, which is not limited in this embodiment of the present application.
After receiving the Downlink semi-persistent resource configuration information, the terminal may receive a corresponding Downlink data Channel and feed back an Uplink Control Channel under the condition that the Downlink semi-persistent resource is activated, for example, the terminal may receive a Physical Downlink Shared Channel (PDSCH), and for example, the terminal may send Hybrid Automatic Repeat reQuest (HARQ) feedback through a Physical Uplink Control Channel (PUCCH).
In addition, the terminal may determine, according to the first condition or the first indication information, the first downlink resource that may be ignored and/or the uplink feedback corresponding to the first downlink resource that may be ignored, so that the terminal may not need to receive a downlink channel in the first downlink resource, may discard downlink data of the first downlink resource, or may not need to send uplink feedback information corresponding to the first downlink resource.
In the embodiment of the application, the terminal may ignore the first downlink resource in the downlink semi-persistent resource or the uplink feedback corresponding to the first downlink resource according to the preconfigured condition or the indication information of the network side device, so that the terminal does not need to receive all downlink transmissions and does not need to provide all downlink transmission feedback information, thereby saving the electric energy of the terminal and saving the uplink feedback resource.
Optionally, the first downlink resource is a downlink resource for receiving a specific downlink service.
For example, the network side device may configure the downlink resources given by SPS configuration-1 and SPS configuration-2 as the reception of downlink data for MBS service-1.
Optionally, the first downlink resource is one or more downlink resources in a specific resource group.
Optionally, the specific resource group includes at least one of:
sending N downlink resources of the same resource sending period, wherein N is an integer greater than or equal to 1;
m downlink resources of different resource sending periods, wherein M is an integer greater than 1;
and K resources are used for sending the downlink resources of the period, wherein K is an integer greater than or equal to 1.
In this embodiment, the specific resource group may include N downlink resources of the same resource transmission period, for example, the resource period of SPS configuration-1 is 10ms, the resource positions are slot-1(slot numbers are 1 to 10, and each slot is 1ms), the resource period of SPS configuration-2 is 10ms, and the resource positions are slot-2, then the SPS resources of slot-1 and slot-2 may be configured as the specific SPS resource group. For another example, the resource period of SPS configuration-1 is 10ms, and the resource locations are slot-1 and slot-2, then the SPS resources of slot-1 and slot-2 can be configured as a specific SPS resource group.
The specific resource group may further include M downlink resources of different resource transmission periods, for example, the resource period of SPS configuration-1 is 10ms, the resource positions are slot-1(slot numbers are 1-10, each slot is 1ms), the resource period of SPS configuration-2 is 20ms, and the resource positions are slot-2, so that the resource period of SPS configuration-2 may be used as the period of the specific SPS resource group, that is, SPS resources of slot-1 and slot-2 may be configured as the specific SPS resource group every 20 ms.
The specific resource group may further include downlink resources of K resource transmission periods, for example, SPS resources of 2 periods may be configured as the specific SPS resource group, where 2 SPS resources of period 1 and period 2 are the 1 st SPS resource group, and 2 SPS resources of period 3 and period 4 are the 2 nd SPS resource group.
Optionally, the resources of the specific resource group are configured through one or more resource configuration signaling.
For the case that the first downlink resource is multiple downlink resources in a specific resource group, the multiple downlink resources may be configured by one or more resource configuration signaling, for example, 1 SPS configuration signaling may configure multiple SPS resources of 1 period, and for example, multiple SPS configuration signaling may configure multiple SPS resources of the same (or different) period.
Optionally, the first indication information is used to indicate at least one of the following:
ignoring the first downlink resource;
the first downlink resource is preempted;
ignoring uplink feedback corresponding to the first downlink resource;
and preempting an uplink feedback channel corresponding to the first downlink resource.
In this embodiment, the first indication Information may be used to indicate that the terminal ignores the first Downlink resource, that is, ignores to receive the specific Downlink data channel, for example, the first indication Information may be Downlink Control Information (DCI) which is used to indicate that a plurality of SPS Downlink data channels in 1 SPS resource group are ignored.
The first indication information may also be used to indicate that the first downlink resource is preempted, i.e., that a specific downlink data channel is preempted, for example, the first indication information may be DCI, which is used to indicate that a plurality of SPS downlink data channels in the 1 SPS resource group are preempted.
For the first indication information, the terminal may be understood to ignore the first downlink resource according to the first indication information, and may also be understood to ignore the uplink feedback corresponding to the first downlink resource according to the first indication information. That is, the "first indication information indicating to ignore the first downlink resource" may be the same as the "first indication information indicating to ignore the uplink feedback corresponding to the first downlink resource".
In addition, the first indication information may also be used to indicate to ignore uplink feedback corresponding to the first downlink resource, for example, the first indication information may be DCI, which is used to indicate to ignore uplink feedback corresponding to multiple SPS downlink data channels in 1 SPS resource group. The first indication information may also be used to indicate that the uplink feedback channel corresponding to the first downlink resource is preempted, for example, the first indication information may be DCI, and is used to indicate that the uplink feedback channel corresponding to a plurality of SPS downlink data channels in 1 SPS resource group is preempted.
Optionally, the first indication information includes at least one of:
the number of the first downstream resources;
a time location of the first downlink resource.
In this embodiment, the first indication information may be used to indicate the number of ignored (or preempted) downlink data channels, for example, 5 PDSCH resources in 1 SPS resource group, and the first indication information is used to indicate to ignore 3 resources.
The first indication information may also be used to indicate a time position of the downlink data channel to be ignored (or preempted), for example, the first indication information is used to indicate to ignore SPS resources of x consecutive periods from the indicated time position.
The first indication information may also be used to indicate the number and time position of the omitted (or preempted) downlink data channels, for example, the first indication information is used to indicate that 3 SPS resources consecutive from the indicated time position are omitted, and for example, there are 5 PDSCH resources in 1 SPS resource group, and the first indication information is used to indicate that all subsequent SPS resources in the SPS resource group from the indicated time position are omitted.
Optionally, the first condition includes at least one of:
ignoring the first downlink resource at a preconfigured first time location;
ignoring the first downlink resource if first data is received;
ignoring the first downlink resource if a first preset amount of data is received;
ignoring the first downlink resource if a first measurement value of a measurement signal is less than or equal to a first threshold value;
ignoring the first downlink resource if a second measurement value of the measurement signal is greater than or equal to a second threshold value;
ignoring uplink feedback of the first downlink resource at a preconfigured second time location;
ignoring uplink feedback of the first downlink resource if no second data is received;
ignoring uplink feedback of the first downlink resource if a second preset amount of data is not received;
ignoring uplink feedback of the first downlink resource if a third measurement value of the measurement signal is less than or equal to a third threshold value;
ignoring uplink feedback of the first downlink resource if a fourth measurement value of the measurement signal is greater than or equal to a fourth threshold value.
In this embodiment, the first condition may refer to ignoring the first downlink resource at a pre-configured time location, e.g., ignoring n (e.g., 1) SPS downlink data channels every m (e.g., 3) cycles.
The first condition may also refer to ignoring reception of a specific downlink data channel if specific data is received, e.g., the terminal may ignore the first downlink resource if the terminal successfully receives downlink data in 1 SPS resource group.
The first condition may also refer to ignoring reception of a particular downlink data channel if a particular amount of data is received, e.g., if the terminal successfully receives x downlink data in 1 set of SPS resources, the terminal may ignore the first downlink resource.
The first condition may also refer to ignoring reception of the specific downlink data channel in a case where the first measurement value of the measurement signal is less than or equal to a threshold value configured by the network side device. The first measurement value may be, for example, Reference Signal Received Power (RSRP), Reference Signal Received Quality (RSRQ), and Signal to Interference plus Noise Ratio (SINR).
The first condition may also refer to ignoring reception of the specific downlink data channel in a case where the second measurement value of the measurement signal is greater than or equal to a threshold value configured by the network side device. The second measurement value may be, for example, a Received Signal Strength Indicator (RSSI), a Channel Occupancy Rate (CR), and a Channel Busy Rate (CBR).
For the first condition, the terminal may be understood to ignore the first downlink resource according to the first condition, and may also be understood to ignore the uplink feedback corresponding to the first downlink resource according to the first condition. That is, the above-mentioned "first condition for indicating to ignore the first downlink resource" may be the same as "first condition for indicating to ignore uplink feedback corresponding to the first downlink resource".
Additionally, the first condition may also refer to ignoring uplink feedback for sending a particular downlink data channel at a pre-configured time location, e.g., ignoring uplink feedback for n (e.g., 1) SPS downlink data channels every m (e.g., 3) cycles.
The first condition may also refer to ignoring uplink feedback corresponding to the transmission of the specific downlink data channel if the specific data is not received, for example, if the terminal does not successfully receive downlink data in 1 SPS downlink data channel, the terminal may ignore uplink feedback corresponding to the SPS downlink data channel.
The first condition may also refer to ignoring reception of a specific downlink data channel if a specific amount of data is not received, for example, if the terminal does not receive x downlink data in 1 SPS resource group, the terminal may ignore uplink feedback corresponding to a subsequent SPS downlink data channel in the SPS resource group.
The first condition may also refer to ignoring uplink feedback corresponding to sending the specific downlink data channel when the third measurement value of the measurement signal is less than or equal to a threshold value configured by the network side device. The third measurement value may be RSRP, RSRQ, SINR, for example.
The first condition may also refer to ignoring uplink feedback corresponding to sending the specific downlink data channel when the fourth measurement value of the measurement signal is greater than or equal to the threshold value configured by the network side device. The fourth measurement value may be RSSI, CR, CBR, for example.
Through the embodiment, the terminal can ignore the receiving of the downlink data channel and the feedback sending of the uplink control channel in the specific downlink resource, so that the receiving of the downlink data channel and the sending of the uplink control channel are saved when the network side equipment has no data sending or the channel quality is poor, and the effect of saving power of the terminal is achieved.
In the embodiment of the application, the terminal may ignore the first downlink resource in the downlink semi-persistent resource or the uplink feedback corresponding to the first downlink resource according to the preconfigured condition or the indication information of the network side device, so that the terminal does not need to receive all downlink transmissions and does not need to provide all downlink transmission feedback information, thereby saving the power of the terminal and saving the uplink feedback resource.
It should be noted that, in the downlink transmission method provided in the embodiment of the present application, the execution main body may be a downlink transmission apparatus, or a control module in the downlink transmission apparatus for executing the downlink transmission method. In the embodiment of the present application, a downlink transmission apparatus executing a downlink transmission method is taken as an example to describe the downlink transmission apparatus provided in the embodiment of the present application.
Fig. 3 is a structural diagram of a downlink transmission apparatus according to an embodiment of the present application, and as shown in fig. 3, a downlink transmission apparatus 300 is applied to a terminal, and the downlink transmission apparatus 300 includes:
a control module 301, configured to ignore a first downlink resource and/or ignore an uplink feedback corresponding to the first downlink resource, where the first downlink resource is a resource in a downlink semi-persistent resource configured by a network side device, and the first downlink resource is determined by a preconfigured first condition or first indication information sent by the network side device.
Optionally, the control module 301 is specifically configured to at least one of:
not receiving a downlink channel of the first downlink resource;
and discarding the downlink data of the first downlink resource.
Optionally, the control module 301 is specifically configured to:
and not sending the uplink feedback information corresponding to the first downlink resource to the network side equipment.
Optionally, the first indication information is used to indicate at least one of the following:
ignoring the first downlink resource;
the first downlink resource is preempted;
ignoring uplink feedback corresponding to the first downlink resource;
and preempting an uplink feedback channel corresponding to the first downlink resource.
Optionally, the first indication information includes at least one of:
the number of the first downstream resources;
a time location of the first downlink resource.
Optionally, the first condition includes at least one of:
ignoring the first downlink resource at a preconfigured first time location;
ignoring the first downlink resource if first data is received;
ignoring the first downlink resource if a first preset amount of data is received;
ignoring the first downlink resource if a first measurement value of a measurement signal is less than or equal to a first threshold value;
ignoring the first downlink resource if a second measurement value of the measurement signal is greater than or equal to a second threshold value;
ignoring uplink feedback of the first downlink resource at a preconfigured second time location;
ignoring uplink feedback of the first downlink resource if no second data is received;
ignoring uplink feedback of the first downlink resource if a second preset amount of data is not received;
ignoring uplink feedback of the first downlink resource if a third measurement value of the measurement signal is less than or equal to a third threshold value;
ignoring uplink feedback of the first downlink resource if a fourth measurement value of the measurement signal is greater than or equal to a fourth threshold value.
Optionally, the first downlink resource is one or more downlink resources in a specific resource group.
Optionally, the specific resource group includes at least one of:
sending N downlink resources of the same resource sending period, wherein N is an integer greater than or equal to 1;
m downlink resources of different resource sending periods, wherein M is an integer greater than 1;
and K resources are used for sending the downlink resources of the period, wherein K is an integer greater than or equal to 1.
Optionally, the resources of the specific resource group are configured through one or more resource configuration signaling.
Optionally, the first downlink resource is a downlink resource for receiving a specific downlink service.
The downlink transmission apparatus in the embodiment of the present application may be an apparatus, or may be a component, an integrated circuit, or a chip in a terminal. The device can be a mobile terminal or a non-mobile terminal. By way of example, the mobile terminal may include, but is not limited to, the above-listed type of terminal 11, and the non-mobile terminal may be a server, a Network Attached Storage (NAS), a Personal Computer (PC), a Television (TV), a teller machine, a kiosk, or the like, and the embodiments of the present application are not limited in particular.
The downlink transmission apparatus in the embodiment of the present application may be an apparatus having an operating system. The operating system may be an Android operating system (Android), an iOS operating system, or other possible operating systems, which is not specifically limited in the embodiments of the present application.
The downlink transmission apparatus provided in the embodiment of the present application can implement each process implemented by the method embodiment of fig. 2, and achieve the same technical effect, and for avoiding repetition, details are not described here again.
Fig. 4 is a flowchart of a downlink transmission method provided in an embodiment of the present application, and as shown in fig. 4, the downlink transmission method is applied to a network side device, and the method includes the following steps:
step 401: the method includes the steps of pre-configuring a first condition or sending first indication information to a terminal, wherein the first condition or the first indication information is used for indicating the terminal to ignore a first downlink resource and/or ignore uplink feedback corresponding to the first downlink resource, and the first downlink resource is a resource in downlink semi-persistent resources configured by network side equipment.
Optionally, the ignoring the first downlink resource includes at least one of:
not receiving a downlink channel of the first downlink resource;
and discarding the downlink data of the first downlink resource.
Optionally, the ignoring the uplink feedback corresponding to the first downlink resource includes:
and not sending the uplink feedback information corresponding to the first downlink resource to the network side equipment.
Optionally, the first indication information is used to indicate at least one of the following:
ignoring the first downlink resource;
the first downlink resource is preempted;
ignoring uplink feedback corresponding to the first downlink resource;
and preempting an uplink feedback channel corresponding to the first downlink resource.
Optionally, the first indication information includes at least one of:
the number of the first downstream resources;
a time location of the first downlink resource.
Optionally, the first condition includes at least one of:
ignoring the first downlink resource at a preconfigured first time location;
ignoring the first downlink resource if first data is received;
ignoring the first downlink resource if a first preset amount of data is received;
ignoring the first downlink resource if a first measurement value of a measurement signal is less than or equal to a first threshold value;
ignoring the first downlink resource if a second measurement value of the measurement signal is greater than or equal to a second threshold value;
ignoring uplink feedback of the first downlink resource at a preconfigured second time location;
ignoring uplink feedback of the first downlink resource if no second data is received;
ignoring uplink feedback of the first downlink resource if a second preset amount of data is not received;
ignoring uplink feedback of the first downlink resource if a third measurement value of the measurement signal is less than or equal to a third threshold value;
ignoring uplink feedback of the first downlink resource if a fourth measurement value of the measurement signal is greater than or equal to a fourth threshold value.
Optionally, the first downlink resource is one or more downlink resources in a specific resource group.
Optionally, the specific resource group includes at least one of:
sending N downlink resources of the same resource sending period, wherein N is an integer greater than or equal to 1;
m downlink resources of different resource sending periods, wherein M is an integer greater than 1;
and K resources are used for sending the downlink resources of the period, wherein K is an integer greater than or equal to 1.
Optionally, the resources of the specific resource group are configured through one or more resource configuration signaling.
Optionally, the first downlink resource is a downlink resource for receiving a specific downlink service.
It should be noted that, the relevant implementation manner and the relevant description in the method embodiment of fig. 2 may be applied to the embodiment of the present application, and achieve the same technical effect, and are not described herein again to avoid repetition.
It should be noted that, in the downlink transmission method provided in the embodiment of the present application, the execution main body may be a downlink transmission apparatus, or a control module in the downlink transmission apparatus for executing the downlink transmission method. In the embodiment of the present application, a downlink transmission apparatus executing a downlink transmission method is taken as an example to describe the downlink transmission apparatus provided in the embodiment of the present application.
Fig. 5 is a structural diagram of a downlink transmission apparatus according to an embodiment of the present application, and as shown in fig. 5, a downlink transmission apparatus 500 is applied to a network side device, where the downlink transmission apparatus 500 includes:
an executing module 501, configured to pre-configure a first condition or send first indication information to a terminal, where the first condition or the first indication information is used to indicate the terminal to ignore a first downlink resource and/or ignore an uplink feedback corresponding to the first downlink resource, and the first downlink resource is a resource in downlink semi-persistent resources configured by the network side device.
Optionally, the first indication information is used to indicate at least one of the following:
ignoring the first downlink resource;
the first downlink resource is preempted;
ignoring uplink feedback corresponding to the first downlink resource;
and preempting an uplink feedback channel corresponding to the first downlink resource.
Optionally, the first indication information includes at least one of:
the number of the first downstream resources;
a time location of the first downlink resource.
Optionally, the first condition includes at least one of:
ignoring the first downlink resource at a preconfigured first time location;
ignoring the first downlink resource if first data is received;
ignoring the first downlink resource if a first preset amount of data is received;
ignoring the first downlink resource if a first measurement value of a measurement signal is less than or equal to a first threshold value;
ignoring the first downlink resource if a second measurement value of the measurement signal is greater than or equal to a second threshold value;
ignoring uplink feedback of the first downlink resource at a preconfigured second time location;
ignoring uplink feedback of the first downlink resource if no second data is received;
ignoring uplink feedback of the first downlink resource if a second preset amount of data is not received;
ignoring uplink feedback of the first downlink resource if a third measurement value of the measurement signal is less than or equal to a third threshold value;
ignoring uplink feedback of the first downlink resource if a fourth measurement value of the measurement signal is greater than or equal to a fourth threshold value.
Optionally, the ignoring the first downlink resource includes at least one of:
not receiving a downlink channel of the first downlink resource;
and discarding the downlink data of the first downlink resource.
Optionally, the ignoring the uplink feedback corresponding to the first downlink resource includes:
and not sending the uplink feedback information corresponding to the first downlink resource to the network side equipment.
Optionally, the first downlink resource is one or more downlink resources in a specific resource group.
Optionally, the specific resource group includes at least one of:
sending N downlink resources of the same resource sending period, wherein N is an integer greater than or equal to 1;
m downlink resources of different resource sending periods, wherein M is an integer greater than 1;
and K resources are used for sending the downlink resources of the period, wherein K is an integer greater than or equal to 1.
Optionally, the resources of the specific resource group are configured through one or more resource configuration signaling.
Optionally, the first downlink resource is a downlink resource for receiving a specific downlink service.
The downlink transmission apparatus provided in the embodiment of the present application can implement each process implemented by the method embodiment of fig. 4, and achieve the same technical effect, and for avoiding repetition, details are not described here again.
As shown in fig. 6, an embodiment of the present application further provides a communication device 600, which includes a processor 601, a memory 602, and a program or an instruction stored in the memory 602 and executable on the processor 601, for example, when the communication device 600 is a terminal, the program or the instruction is executed by the processor 601 to implement the processes of the downlink transmission method embodiment, and the same technical effect can be achieved. When the communication device 600 is a network-side device, the program or the instructions are executed by the processor 601 to implement the processes of the downlink transmission method embodiment, and the same technical effect can be achieved.
The embodiment of the application also provides network side equipment. As shown in fig. 7, the network-side device 700 includes: an antenna 71, a radio frequency device 72, a baseband device 73. The antenna 71 is connected to a radio frequency device 72. In the uplink direction, the rf device 72 receives information via the antenna 71 and sends the received information to the baseband device 73 for processing. In the downlink direction, the baseband device 73 processes information to be transmitted and transmits the information to the rf device 72, and the rf device 72 processes the received information and transmits the processed information through the antenna 71.
The above-mentioned band processing means may be located in the baseband device 73, and the method performed by the network side device in the above embodiment may be implemented in the baseband device 73, where the baseband device 73 includes a processor 74 and a memory 75.
The baseband device 73 may include, for example, at least one baseband board, on which a plurality of chips are disposed, as shown in fig. 7, wherein one of the chips, for example, the processor 74, is connected to the memory 75 to call up the program in the memory 75 to perform the network device operation shown in the above method embodiment.
The baseband device 73 may further include a network interface 76, such as a Common Public Radio Interface (CPRI), for exchanging information with the radio frequency device 72.
Specifically, the network side device of the embodiment of the present invention further includes: the instructions or programs stored in the memory 75 and capable of being executed on the processor 74, and the processor 74 calls the instructions or programs in the memory 75 to execute the method executed by each module shown in fig. 5, and achieve the same technical effect, and are not described herein in detail to avoid repetition.
Fig. 8 is a schematic diagram of a hardware structure of a terminal for implementing the embodiment of the present application.
The terminal 1000 includes, but is not limited to: a radio frequency unit 1001, a network module 1002, an audio output unit 1003, an input unit 1004, a sensor 1005, a display unit 1006, a user input unit 1007, an interface unit 1008, a memory 1009, and a processor 1010.
Those skilled in the art will appreciate that terminal 1000 can also include a power supply (e.g., a battery) for powering the various components, which can be logically coupled to processor 1010 via a power management system to provide management of charging, discharging, and power consumption via the power management system. The terminal structure shown in fig. 8 does not constitute a limitation of the terminal, and the terminal may include more or less components than those shown, or combine some components, or have a different arrangement of components, and thus will not be described again.
It should be understood that in the embodiment of the present application, the input Unit 1004 may include a Graphics Processing Unit (GPU) 10041 and a microphone 10042, and the Graphics Processing Unit 10041 processes image data of still pictures or videos obtained by an image capturing device (such as a camera) in a video capturing mode or an image capturing mode. The display unit 1006 may include a display panel 10061, and the display panel 10061 may be configured in the form of a liquid crystal display, an organic light emitting diode, or the like. The user input unit 1007 includes a touch panel 10071 and other input devices 10072. The touch panel 10071 is also referred to as a touch screen. The touch panel 10071 may include two parts, a touch detection device and a touch controller. Other input devices 10072 may include, but are not limited to, a physical keyboard, function keys (e.g., volume control keys, switch keys, etc.), a trackball, a mouse, and a joystick, which are not described in detail herein.
In this embodiment of the application, the radio frequency unit 1001 receives downlink data from a network side device and then processes the downlink data to the processor 1010; in addition, the uplink data is sent to the network side equipment. In general, radio frequency unit 1001 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like.
The memory 1009 may be used to store software programs or instructions and various data. The memory 1009 may mainly include a program or instruction storage area and a data storage area, wherein the program or instruction storage area may store an operating system, an application program or instruction (such as a sound playing function, an image playing function, and the like) required for at least one function, and the like. Further, the Memory 1009 may include a high-speed random access Memory and may also include a nonvolatile Memory, where the nonvolatile Memory may be a Read-Only Memory (ROM), a Programmable ROM (PROM), an Erasable Programmable PROM (EPROM), an Electrically Erasable Programmable ROM (EEPROM), or a flash Memory. Such as at least one magnetic disk storage device, flash memory device, or other non-volatile solid state storage device.
Wherein, the processor 1010 is configured to:
ignoring a first downlink resource and/or ignoring an uplink feedback corresponding to the first downlink resource, where the first downlink resource is a resource in a downlink semi-persistent resource configured by a network side device, and the first downlink resource is determined by a preconfigured first condition or first indication information sent by the network side device.
Optionally, the processor 1010 is further configured to at least one of:
not receiving a downlink channel of the first downlink resource;
and discarding the downlink data of the first downlink resource.
Optionally, the processor 1010 is further configured to:
and not sending the uplink feedback information corresponding to the first downlink resource to the network side equipment.
Optionally, the first indication information is used to indicate at least one of the following:
ignoring the first downlink resource;
the first downlink resource is preempted;
ignoring uplink feedback corresponding to the first downlink resource;
and preempting an uplink feedback channel corresponding to the first downlink resource.
Optionally, the first indication information includes at least one of:
the number of the first downstream resources;
a time location of the first downlink resource.
Optionally, the first condition includes at least one of:
ignoring the first downlink resource at a preconfigured first time location;
ignoring the first downlink resource if first data is received;
ignoring the first downlink resource if a first preset amount of data is received;
ignoring the first downlink resource if a first measurement value of a measurement signal is less than or equal to a first threshold value;
ignoring the first downlink resource if a second measurement value of the measurement signal is greater than or equal to a second threshold value;
ignoring uplink feedback of the first downlink resource at a preconfigured second time location;
ignoring uplink feedback of the first downlink resource if no second data is received;
ignoring uplink feedback of the first downlink resource if a second preset amount of data is not received;
ignoring uplink feedback of the first downlink resource if a third measurement value of the measurement signal is less than or equal to a third threshold value;
ignoring uplink feedback of the first downlink resource if a fourth measurement value of the measurement signal is greater than or equal to a fourth threshold value.
Optionally, the first downlink resource is one or more downlink resources in a specific resource group.
Optionally, the specific resource group includes at least one of:
sending N downlink resources of the same resource sending period, wherein N is an integer greater than or equal to 1;
m downlink resources of different resource sending periods, wherein M is an integer greater than 1;
and K resources are used for sending the downlink resources of the period, wherein K is an integer greater than or equal to 1.
Optionally, the resources of the specific resource group are configured through one or more resource configuration signaling.
Optionally, the first downlink resource is a downlink resource for receiving a specific downlink service.
In the embodiment of the application, the terminal may ignore the first downlink resource in the downlink semi-persistent resource or the uplink feedback corresponding to the first downlink resource according to the preconfigured condition or the indication information of the network side device, so that the terminal does not need to receive all downlink transmissions and does not need to provide all downlink transmission feedback information, thereby saving the power of the terminal and saving the uplink feedback resource.
An embodiment of the present application further provides a readable storage medium, where a program or an instruction is stored on the readable storage medium, and the program or the instruction, when executed by a processor, implements each process of the foregoing downlink transmission method embodiment, or implements each process of the foregoing downlink transmission method embodiment, and can achieve the same technical effect, and in order to avoid repetition, details are not repeated here.
Wherein, the processor is the processor in the terminal described in the above embodiment. The readable storage medium includes a computer readable storage medium, such as a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and so on.
The embodiment of the present application further provides a chip, where the chip includes a processor and a communication interface, the communication interface is coupled to the processor, and the processor is configured to run a program or an instruction to implement each process of the downlink transmission method embodiment, or to implement each process of the downlink transmission method embodiment, and may achieve the same technical effect, and in order to avoid repetition, the details are not repeated here.
It should be understood that the chips mentioned in the embodiments of the present application may also be referred to as a system-on-chip, a system-on-chip or a system-on-chip, etc.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element. Further, it should be noted that the scope of the methods and apparatus of the embodiments of the present application is not limited to performing the functions in the order illustrated or discussed, but may include performing the functions in a substantially simultaneous manner or in a reverse order based on the functions involved, e.g., the methods described may be performed in an order different than that described, and various steps may be added, omitted, or combined. In addition, features described with reference to certain examples may be combined in other examples.
Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solutions of the present application may be embodied in the form of a software product, which is stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk) and includes instructions for enabling a terminal (such as a mobile phone, a computer, a server, an air conditioner, or a network device) to execute the method according to the embodiments of the present application.
While the present embodiments have been described with reference to the accompanying drawings, it is to be understood that the invention is not limited to the precise embodiments described above, which are meant to be illustrative and not restrictive, and that various changes may be made therein by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (30)
1. A downlink transmission method is applied to a terminal, and is characterized by comprising the following steps:
ignoring a first downlink resource and/or ignoring an uplink feedback corresponding to the first downlink resource, where the first downlink resource is a resource in a downlink semi-persistent resource configured by a network side device, and the first downlink resource is determined by a preconfigured first condition or first indication information sent by the network side device.
2. The method of claim 1, wherein ignoring the first downlink resource comprises at least one of:
not receiving a downlink channel of the first downlink resource;
and discarding the downlink data of the first downlink resource.
3. The method of claim 1, wherein the ignoring the uplink feedback corresponding to the first downlink resource comprises:
and not sending the uplink feedback information corresponding to the first downlink resource to the network side equipment.
4. The method of claim 1, wherein the first indication information is used for indicating at least one of the following:
ignoring the first downlink resource;
the first downlink resource is preempted;
ignoring uplink feedback corresponding to the first downlink resource;
and preempting an uplink feedback channel corresponding to the first downlink resource.
5. The method of claim 1, wherein the first indication information comprises at least one of:
the number of the first downstream resources;
a time location of the first downlink resource.
6. The method of claim 1, wherein the first condition comprises at least one of:
ignoring the first downlink resource at a preconfigured first time location;
ignoring the first downlink resource if first data is received;
ignoring the first downlink resource if a first preset amount of data is received;
ignoring the first downlink resource if a first measurement value of a measurement signal is less than or equal to a first threshold value;
ignoring the first downlink resource if a second measurement value of the measurement signal is greater than or equal to a second threshold value;
ignoring uplink feedback of the first downlink resource at a preconfigured second time location;
ignoring uplink feedback of the first downlink resource if no second data is received;
ignoring uplink feedback of the first downlink resource if a second preset amount of data is not received;
ignoring uplink feedback of the first downlink resource if a third measurement value of the measurement signal is less than or equal to a third threshold value;
ignoring uplink feedback of the first downlink resource if a fourth measurement value of the measurement signal is greater than or equal to a fourth threshold value.
7. The method of claim 1, wherein the first downlink resource is one or more downlink resources in a particular resource group.
8. The method of claim 7, wherein the particular resource group comprises at least one of:
sending N downlink resources of the same resource sending period, wherein N is an integer greater than or equal to 1;
m downlink resources of different resource sending periods, wherein M is an integer greater than 1;
and K resources are used for sending the downlink resources of the period, wherein K is an integer greater than or equal to 1.
9. The method of claim 7, wherein the resources of the particular resource group are configured via one or more resource configuration signaling.
10. The method of claim 1, wherein the first downlink resource is a downlink resource for receiving a specific downlink service.
11. A downlink transmission apparatus applied to a terminal, comprising:
the control module is configured to ignore a first downlink resource and/or ignore an uplink feedback corresponding to the first downlink resource, where the first downlink resource is a resource in a downlink semi-persistent resource configured by a network side device, and the first downlink resource is determined by a preconfigured first condition or first indication information sent by the network side device.
12. The apparatus of claim 11, wherein the control module is specifically configured to at least one of:
not receiving a downlink channel of the first downlink resource;
and discarding the downlink data of the first downlink resource.
13. The apparatus of claim 11, wherein the control module is specifically configured to:
and not sending the uplink feedback information corresponding to the first downlink resource to the network side equipment.
14. A downlink transmission method is applied to network side equipment, and is characterized by comprising the following steps:
the method includes the steps of pre-configuring a first condition or sending first indication information to a terminal, wherein the first condition or the first indication information is used for indicating the terminal to ignore a first downlink resource and/or ignore uplink feedback corresponding to the first downlink resource, and the first downlink resource is a resource in downlink semi-persistent resources configured by network side equipment.
15. The method of claim 14, wherein ignoring the first downlink resource comprises at least one of:
not receiving a downlink channel of the first downlink resource;
and discarding the downlink data of the first downlink resource.
16. The method of claim 14, wherein the ignoring the uplink feedback corresponding to the first downlink resource comprises:
and not sending the uplink feedback information corresponding to the first downlink resource to the network side equipment.
17. The method of claim 14, wherein the first indication information is used for indicating at least one of the following:
ignoring the first downlink resource;
the first downlink resource is preempted;
ignoring uplink feedback corresponding to the first downlink resource;
and preempting an uplink feedback channel corresponding to the first downlink resource.
18. The method of claim 14, wherein the first indication information comprises at least one of:
the number of the first downstream resources;
a time location of the first downlink resource.
19. The method of claim 14, wherein the first condition comprises at least one of:
ignoring the first downlink resource at a preconfigured first time location;
ignoring the first downlink resource if first data is received;
ignoring the first downlink resource if a first preset amount of data is received;
ignoring the first downlink resource if a first measurement value of a measurement signal is less than or equal to a first threshold value;
ignoring the first downlink resource if a second measurement value of the measurement signal is greater than or equal to a second threshold value;
ignoring uplink feedback of the first downlink resource at a preconfigured second time location;
ignoring uplink feedback of the first downlink resource if no second data is received;
ignoring uplink feedback of the first downlink resource if a second preset amount of data is not received;
ignoring uplink feedback of the first downlink resource if a third measurement value of the measurement signal is less than or equal to a third threshold value;
ignoring uplink feedback of the first downlink resource if a fourth measurement value of the measurement signal is greater than or equal to a fourth threshold value.
20. The method of claim 14, wherein the first downlink resource is one or more downlink resources in a particular resource group.
21. The method of claim 20, wherein the particular resource group comprises at least one of:
sending N downlink resources of the same resource sending period, wherein N is an integer greater than or equal to 1;
m downlink resources of different resource sending periods, wherein M is an integer greater than 1;
and K resources are used for sending the downlink resources of the period, wherein K is an integer greater than or equal to 1.
22. The method of claim 20, wherein the resources of the particular resource group are configured via one or more resource configuration signaling.
23. The method of claim 14, wherein the first downlink resource is a downlink resource for receiving a specific downlink service.
24. A downlink transmission device is applied to a network side device, and comprises:
an execution module, configured to pre-configure a first condition or send first indication information to a terminal, where the first condition or the first indication information is used to indicate the terminal to ignore a first downlink resource and/or ignore an uplink feedback corresponding to the first downlink resource, and the first downlink resource is a resource in downlink semi-persistent resources configured by the network side device.
25. The apparatus of claim 24, wherein the first indication information is used for indicating at least one of:
ignoring the first downlink resource;
the first downlink resource is preempted;
ignoring uplink feedback corresponding to the first downlink resource;
and preempting an uplink feedback channel corresponding to the first downlink resource.
26. The apparatus of claim 24, wherein the first indication information comprises at least one of:
the number of the first downstream resources;
a time location of the first downlink resource.
27. The apparatus of claim 24, wherein the first condition comprises at least one of:
ignoring the first downlink resource at a preconfigured first time location;
ignoring the first downlink resource if first data is received;
ignoring the first downlink resource if a first preset amount of data is received;
ignoring the first downlink resource if a first measurement value of a measurement signal is less than or equal to a first threshold value;
ignoring the first downlink resource if a second measurement value of the measurement signal is greater than or equal to a second threshold value;
ignoring uplink feedback of the first downlink resource at a preconfigured second time location;
ignoring uplink feedback of the first downlink resource if no second data is received;
ignoring uplink feedback of the first downlink resource if a second preset amount of data is not received;
ignoring uplink feedback of the first downlink resource if a third measurement value of the measurement signal is less than or equal to a third threshold value;
ignoring uplink feedback of the first downlink resource if a fourth measurement value of the measurement signal is greater than or equal to a fourth threshold value.
28. A terminal comprising a processor, a memory, and a program or instructions stored on the memory and executable on the processor, the program or instructions when executed by the processor implementing the steps of the downlink transmission method according to any one of claims 1 to 10.
29. A network-side device comprising a processor, a memory, and a program or instructions stored on the memory and executable on the processor, wherein the program or instructions, when executed by the processor, implement the steps of the downlink transmission method according to any one of claims 14 to 23.
30. A readable storage medium, on which a program or instructions are stored, which, when executed by the processor, implement the downlink transmission method according to any one of claims 1 to 10, or implement the downlink transmission method according to any one of claims 14 to 23.
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| CN202010779345.7A CN114071501A (en) | 2020-08-05 | 2020-08-05 | Downlink transmission method, downlink transmission device, terminal and network side equipment |
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| CN202010779345.7A CN114071501A (en) | 2020-08-05 | 2020-08-05 | Downlink transmission method, downlink transmission device, terminal and network side equipment |
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