CN111106912A - Auxiliary cell control method, network side equipment and terminal - Google Patents
Auxiliary cell control method, network side equipment and terminal Download PDFInfo
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- CN111106912A CN111106912A CN201811271536.1A CN201811271536A CN111106912A CN 111106912 A CN111106912 A CN 111106912A CN 201811271536 A CN201811271536 A CN 201811271536A CN 111106912 A CN111106912 A CN 111106912A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/0091—Signaling for the administration of the divided path
- H04L5/0096—Indication of changes in allocation
- H04L5/0098—Signalling of the activation or deactivation of component carriers, subcarriers or frequency bands
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
- H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
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Abstract
The invention provides a control method of an auxiliary cell, network side equipment and a terminal, wherein the control method of the auxiliary cell comprises the following steps: and sending a Physical Downlink Control Channel (PDCCH), wherein the PDCCH carries Downlink Control Information (DCI), and the DCI comprises first indication information and is used for indicating a terminal to activate or deactivate a target secondary cell. The secondary cell control method provided by the embodiment of the invention can shorten the time for activating or deactivating the secondary cell.
Description
Technical Field
The present invention relates to the field of mobile communication technologies, and in particular, to a secondary cell control method, a network side device, and a terminal.
Background
Activation or Deactivation mechanism of SCell (Secondary Cell) in NR (New Radio) is implemented in combination with MAC (Media Access Control) CE (Control Element) and SCell Deactivation Timer, wherein the Deactivation Timer can only deactivate SCell.
Currently, in NR CA (Carrier Aggregation), SCell is activated or deactivated based on MAC CE. When an SCell is activated, a UE (User Equipment) needs to turn on a radio frequency channel and a baseband process according to the activated SCell bandwidth. Since the UE is scheduled sparsely on the SCell than on the PCell (PrimaryCell), it will result in a shorter proportion of time actually scheduled on the SCell. Therefore, low density scheduling on the SCell may result in large energy consumption for UE processing at radio frequency and baseband.
In addition, in the process of activating or deactivating the SCell based on the MAC CE, the network side device transmits the indication information for activating or deactivating the SCell through a PDSCH (Physical Downlink Shared Channel), and the UE can receive the information transmitted through the PDSCH after the UE needs to complete decoding of the PDCCH (Physical Downlink Control Channel), so as to find the indication information in the corresponding PDSCH and perform activation or deactivation of the SCell according to the indication information.
Therefore, the method for activating or deactivating the secondary cell in the prior art has the disadvantage of long time.
Disclosure of Invention
The embodiment of the invention provides a secondary cell control method, network side equipment and a terminal, and aims to solve the problem that the time for activating or deactivating a secondary cell is long in the secondary cell control method in the related art.
In order to solve the technical problems, the invention adopts the following technical scheme:
in a first aspect, an embodiment of the present invention provides a secondary cell control method, where the secondary cell control method is used for a network side device, and the secondary cell control method includes:
and sending a Physical Downlink Control Channel (PDCCH), wherein the PDCCH carries Downlink Control Information (DCI), and the DCI comprises first indication information and is used for indicating a terminal to activate or deactivate a target secondary cell.
In a second aspect, an embodiment of the present invention provides a secondary cell control method, used for a terminal, where the secondary cell control method includes:
receiving a Physical Downlink Control Channel (PDCCH), wherein the PDCCH carries Downlink Control Information (DCI), and the DCI comprises first indication information and is used for indicating a terminal to activate or deactivate a target secondary cell;
activating or deactivating the target secondary cell.
In a third aspect, an embodiment of the present invention provides a network-side device, including a first processor and a first transceiver:
the first transceiver is configured to send a physical downlink control channel PDCCH, where the PDCCH carries downlink control information DCI, and the DCI includes first indication information and is used to indicate a terminal to activate or deactivate a target secondary cell.
In a fourth aspect, an embodiment of the present invention provides a terminal, including a second processor and a third transceiver:
the third transceiver is configured to receive a physical downlink control channel PDCCH, where the PDCCH carries downlink control information DCI, where the DCI includes first indication information and is used to indicate a terminal to activate or deactivate a target secondary cell;
the second processor is configured to activate or deactivate the target secondary cell.
In a fifth aspect, an embodiment of the present invention provides a communication device, which includes a third processor, a memory, and a first computer program stored in the memory and being executable on the third processor, where the first computer program, when executed by the third processor, implements the steps of the secondary cell control method according to the first aspect described above, or implements the steps of the secondary cell control method according to the second aspect described above.
In a sixth aspect, an embodiment of the present invention provides a computer-readable storage medium, on which a second computer program is stored, where the second computer program, when executed by a third processor, implements the steps of the secondary cell control method according to the first aspect described above; or the steps of the secondary cell control method of the second aspect as described above.
In the embodiment of the present invention, the indication Information for indicating the terminal to activate or deactivate the target secondary cell is carried in DCI (Downlink Control Information) of the PDCCH, and the terminal can activate or deactivate the target secondary cell according to the received indication Information carried in the PDCCH, thereby shortening the time for activating or deactivating the target secondary cell.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a flowchart of a secondary cell control method for a network side device according to an embodiment of the present invention;
fig. 2 is a flowchart of a secondary cell control method for a terminal according to an embodiment of the present invention;
fig. 3 is a structural diagram of a first network-side device according to an embodiment of the present invention;
fig. 4 is a structural diagram of a second network-side device according to an embodiment of the present invention;
fig. 5 is a structural diagram of a first terminal according to an embodiment of the present invention;
fig. 6 is a structural diagram of a second terminal according to an embodiment of the present invention;
fig. 7 is a block diagram of a communication device according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, 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.
Fig. 1 is a flowchart of a secondary cell control method for a network side device according to an embodiment of the present invention. The method is applied to the network side equipment. As shown in fig. 1, the secondary cell control method includes:
It should be noted that the DCI may include first indication information of one or more terminals, and may also include indication information of one or more secondary cells.
Under the condition that the DCI includes first indication information (also referred to as activation or deactivation indication information) of multiple terminals, after each terminal receives the DCI, the terminal may find, according to a position, in the DCI, of the first indication information of each terminal predefined by a protocol or configured by a high-level signaling, the first indication information corresponding to the terminal from the DCI, and perform corresponding operation of activating or deactivating a target secondary cell according to the corresponding first indication information.
The following illustrates an application scenario of the method according to the embodiment of the present invention.
Situation one
In case one, each terminal has its own default secondary cell, and the network side may simultaneously implement control of the default secondary cells of multiple terminals through one DCI, which is described in detail below.
For example: and if 0 in the first indication information indicates that the secondary cell is deactivated, and 1 indicates that the secondary cell is activated, taking 4 terminals as an example, the DCI includes the first indication information of the 4 terminals, and if the 4 terminals receive the indication information 1101 in the DCI, the first terminal in the 4 terminals is selected. The second terminal and the fourth terminal activate respective default auxiliary cells, and the third terminal deactivates the default auxiliary cells.
The position of the respective first indication information for each terminal in the DCI information may be predefined by a protocol or signaled by a higher layer.
Situation two
In case two, the terminal has multiple secondary cells, and the network side may simultaneously implement activation or deactivation of the multiple secondary cells through one DCI, for example, as follows.
For example: the SCell activation or deactivation indication information length of the DCI format is predefined by a protocol to be N bits, where N may be a numerical value predefined by the protocol, or the number of secondary cells that can be subjected to carrier aggregation at most by the terminal, or the number of secondary cells that can be subjected to carrier aggregation configured for the terminal by a higher layer signaling. For any terminal, the N bits correspond to the N auxiliary cells one by one, and each bit indicates the activation or deactivation state of the corresponding auxiliary cell. For example, a certain UE, which may have at most 4 scells aggregated with carriers, needs 4 bits. Each bit indicates the activation or deactivation status of 1 SCell, respectively. The higher layer signaling configures its 4-bit position in the DCI format.
For example: and 0 in the first indication information indicates to deactivate the secondary cell, 1 indicates to activate the secondary cell, and assuming that the terminal has N secondary cells, and N is equal to 4, at this time, the DCI includes the indication information: 0010, 4 bits respectively correspond to the first secondary cell, the second secondary cell, the third secondary cell and the fourth secondary cell, and then the target terminal deactivates the first secondary cell, the second secondary cell and the fourth secondary cell and activates the third secondary cell after receiving the indication information.
Of course, if the first secondary cell, the second secondary cell, and the fourth secondary cell are originally in the deactivated state, the deactivated state may be maintained unchanged.
The above scheme may also be used for switching secondary cells, and if the current first secondary cell, second secondary cell, and third secondary cell are in a deactivated state, and the fourth secondary cell is in an activated state, the received DCI includes indication information: 0010, deactivating the fourth secondary cell and activating the third secondary cell.
Situation three
In case three, each terminal has a plurality of respective secondary cells, and the network side may simultaneously implement control of the plurality of secondary cells of the plurality of terminals through one DCI, for example, as follows.
Assuming simultaneous control is requiredM terminals are manufactured, and the number of auxiliary cells corresponding to the ith terminal is NiIf N is included in DCI1+N2+…+NMThe indication information of (1).
After each terminal receives the DCI carried by the PDCCH, it may find the first indication information belonging to itself from the DCI according to protocol predefinition or high-level signaling notification, etc.
After each terminal determines the respective first indication information, the processing rule is the same as that in case two, and the description is not repeated here.
In this step, the indication information for activating or deactivating the target secondary cell is transmitted in the PDCCH, so that the terminal can directly acquire the indication information for activating or deactivating the target secondary cell from the DCI carried in the PDCCH after receiving the PDCCH, thereby achieving the effect of quickly responding to the activation or deactivation of the target secondary cell. And the UE can activate or deactivate the SCell after the UE needs to execute the steps of receiving the PDCCH, decoding the PDCCH, receiving and searching the indicating information carried by the PDSCH and the like without carrying the indicating information for activating or deactivating the SCell through the PDSCH as in the prior art. Therefore, the secondary cell control method provided by the embodiment of the invention can overcome the defects of complex process and long time for activating or deactivating the SCell in the prior art.
Meanwhile, in the prior art, the MAC CE is carried on the PDSCH physical channel for transmission and needs ACK/NACK feedback, so the effective time delay of one MAC CE is 10ms, and the UE also needs to consume the energy consumption of radio frequency and baseband processing within the effective time. In the embodiment of the invention, the rapid deactivation operation can be directly carried out according to the first indication information transmitted by the PDCCH, so that the deactivation speed is further reduced. With the development of the technology, the bandwidth configured by the network-side device is wider and wider, and in order to meet different requirements, the BWP technology divides the system bandwidth into multiple BWPs, and the terminal may select some or all BWPs for data transmission as needed.
As an optional implementation manner, in a specific embodiment of the present invention, the DCI further includes second indication information, which is used to instruct the terminal to activate or deactivate a target BWP (Bandwidth Part) in the target secondary cell.
That is, the second indication information corresponds to scells, and the length of the second indication information for each SCell may be the length of the BWP indicator within the SCell. Wherein the BWP indicator length may be a value predefined by a protocol or a logarithm of the number of BWPs within an SCell configured for the UE by higher layer signaling
Wherein n isBWPIs the number of BWPs within the SCell.
Taking the example that the SCell includes 8 BWPs, the length of the second indication information is 3 bits, which can describe each BWP.
In addition, the location of the second indication information of the terminal in the DCI may also be predefined by a protocol or signaled by a higher layer.
In the above manner, the length of the SCell activation or deactivation indication information corresponding to one terminal is N bit, and the SCell activation or deactivation indication information includes two parts:
a first part, the length of which is the number M of SCells corresponding to the terminal; and
and a second part, the sum of the BWP indicator lengths of the M scells, for indicating the target BWP.
That is, for a certain UE, its N bits are divided into M shares, one bit in each share indicates the activation or deactivation state of the corresponding SCell, and the remaining bits indicate which BWP is activated.
In this embodiment, the DCI carried by the PDCCH includes the second indication information indicating activation or deactivation of the BWP, so that activation or deactivation of the BWP can be performed quickly.
In the embodiment of the present invention, the indication information for indicating the terminal to activate or deactivate the target secondary cell is carried in the DCI of the PDCCH, and the terminal can activate or deactivate the target secondary cell according to the received indication information carried in the PDCCH. Thereby increasing the speed of activating or deactivating the target secondary cell.
As an optional implementation manner, after the PDCCH is transmitted, the method further includes the following steps:
under the condition that the first indication information indicates that the terminal activates the target secondary cell, transmitting a PDCCH and/or a PDSCH in the target secondary cell after a first time point or a second time point or a third time point;
the first time point is a time point at which a time interval from a time point at which the PDCCH is transmitted is equal to a first time interval D1;
the second time point is a time point when the network side equipment receives the ACK corresponding to the PDCCH;
the third time point is a time point at which a time interval from the second time point is equal to a second time interval D2.
Wherein, the D1 or D2 can be predefined by a protocol or reported by the terminal.
Specifically, the D1 may be reported by the terminal device through capability information, which indicates that after the network side device sends the PDCCH carrying the activated target secondary cell, the terminal device needs to receive the PDCCH, or receive the PDSCH, or send the PUSCH (Physical Uplink Shared Channel) on the activated secondary cell at a certain interval. Therefore, after the network side device sends the PDCCH carrying the activated target secondary cell, the PDCCH and/or the PDSCH are sent at an interval D1, so as to avoid sending the PDCCH and/or the PDSCH in the target secondary cell under the condition that the terminal is not ready yet, and avoid unnecessary transmission.
In addition, in the specific embodiment of the present invention, the UE may also perform HARQ (Hybrid Automatic Repeat Request) feedback after receiving the PDCCH carrying the SCell activation or deactivation information. If the UE receives the PDCCH carrying the SCell activation or deactivation information, the UE feeds back 1-bit ACK (Acknowledgement), otherwise feeds back 1-bit NACK (Negative Acknowledgement), and requires the network side device to retransmit the activation or deactivation information. In case that the UE feeds back HARQ-ACK, D2 denotes: time spaced between time point a (the time point at which the UE sends HARQ-ACK feedback for the PDCCH carrying SCell activation or deactivation indication information) and time point B (the time point at which the UE may receive the PDCCH or receive the PDSCH or send the PUSCH earliest on the newly activated SCell).
For example: the base station sends a PDCCH indicating that its SCell is activated or deactivated to a certain UE in slot n, and the UE activates SCell #1 according to the PDCCH. The UE originally needs to feed back the HARQ-ACK on the PUCCH resource on the time slot n + 2. The PUCCH resource is the PUCCH/PUSCH resource closest to the PDCCH carrying the SCell activation or deactivation information, and the processing time of the PDCCH and/or the PDSCH of the UE is satisfied, so that the PUCCH resource of the UE in the n +2 time slot is HARQ feedback of the PDCCH for the SCell activation or deactivation information. And adding the HARQ feedback bit of the PDCCH for activating or deactivating the SCell to the last bit of the HARQ-ACK information bit fed back on the PUCCH resource. The base station can only transmit PDCCH on SCell #1 after time n +2+ D2, or schedule SCell # 1.
The time point for sending the PDCCH may be described by a time slot, that is, a time slot in which a resource carrying the PDCCH is located.
In addition, the time point when the ACK is received may also be described by using a time slot, that is, a time slot in which a resource of the PDCCH or the PDSCH in which the ACK is carried is located.
The units of D1 and D2 may be slots, or may be units of other time domain resources, such as symbols.
D1 and D2 indicate that the time interval between the terminal not expecting the network side to transmit the PDCCH carrying DCI and the base station to transmit the PDCCH or transmit the PDSCH or the UE to transmit the PUSCH on the activated Scell is less than D1/D2.
In the embodiment of the invention, the indication information for indicating the terminal to activate or deactivate the target secondary cell is carried in the DCI of the PDCCH, so that the terminal can activate or deactivate the target secondary cell according to the received indication information carried in the PDCCH, thereby shortening the time for activating or deactivating the target secondary cell.
Fig. 2 is a flowchart of a secondary cell control method for a terminal according to an embodiment of the present invention, where the method is used for the terminal. As shown in fig. 2, the secondary cell control method includes:
The PDCCH and the first indication information received by the terminal are, as shown in fig. 1, the PDCCH and the first indication information sent by the network side device in the embodiment.
In this step, the terminal activates or deactivates the target secondary cell according to the first indication information in the PDCCH, so as to achieve the effect of quickly activating or deactivating the target secondary cell.
Optionally, the DCI further includes second indication information for indicating the terminal to activate or deactivate the target BWP in the target secondary cell;
the step 202 specifically includes:
activating or deactivating the target BWP in the target secondary cell.
The second indication information received by the terminal is the second indication information sent by the network side device in the embodiment shown in fig. 1.
Optionally, the position of the first indication information and/or the second indication information in the DCI is configured by protocol predefined or higher layer signaling.
Optionally, the secondary cell control method further includes:
under the condition that the received first indication information indicates that the terminal activates the target secondary cell, detecting a PDCCH and/or receiving a PDSCH and/or transmitting a PUSCH on the target secondary cell after a fourth time point or a fifth time point or a sixth time point;
the fourth time point is a time point at which a time interval from a time point at which the PDCCH is received is equal to a third time interval D3;
the fifth time point is a time point when the terminal sends the ACK corresponding to the PDCCH;
the sixth time point is a time point at which a time interval from the fifth time point is equal to a fourth time interval D4.
Optionally, the D3 or D4 is predefined by a protocol or reported by the terminal.
It should be noted that D3 may be the same time interval as D1 in the embodiment shown in fig. 1, and D4 may be the same time interval as D2 in the embodiment shown in fig. 1.
In addition, the fourth time point may be the same time point as the first time point in the embodiment shown in fig. 1, the fifth time point may be the same time point as the second time point in the embodiment shown in fig. 1, and the sixth time point may be the same time point as the third time point in the embodiment shown in fig. 1, that is, the network side device transmits the PDCCH in the time slot n, and the terminal receives the PDCCH in the time slot n.
As an optional implementation manner, after the terminal receives the PDCCH, the method further includes:
and transmitting first HARQ-ACK information corresponding to the PDCCH.
If the terminal receives the PDCCH, an acknowledgement character ACK is fed back to network side equipment, and if the PDCCH is not received, a negative character NACK is fed back to the network side equipment. And the network side equipment can determine that the terminal has received the PDCCH according to the HARQ-ACK information fed back by the terminal.
Optionally, the target transmission resource for transmitting the first HARQ-ACK information is: in the initial resource set, uplink transmission resources with the minimum time interval with the time point of receiving the PDCCH are obtained;
the initial set of resources is: in the uplink transmission resources allocated or indicated for the terminal, after the time point of the PDCCH is received, the time interval between the time point of the PDCCH and the time point of the PDCCH is greater than a transmission resource with a first duration or a second duration, the first duration is a value predefined by a protocol or PDSCH processing time of the terminal, and the second duration is PUSCH preparation time of the terminal.
Since the terminal may need to perform the steps of receiving, decoding, searching, determining, and the like before transmitting the resource, a certain PDSCH processing time or PUSCH preparation time is required.
In this embodiment, transmission resources greater than the first duration or the second duration are taken as the initial resource set, so that each transmission resource in the initial resource set can be transmitted only when the terminal has completed PDSCH processing or PUSCH preparation. In addition, the uplink transmission resource with the minimum transmission time interval with the PDCCH in the initial resource set is selected, and the first HARQ-ACK information can be transmitted as soon as possible after the terminal completes PDSCH processing or PUSCH preparation, so as to reduce time loss.
For example: the number of uplink transmission resources allocated by the terminal is 3, wherein the transmission time interval between the first transmission resource and the PDCCH is less than the first duration or the second duration, so that the first transmission resource is excluded. In addition, if the transmission time interval between the second transmission resource and the PDCCH and the transmission time interval between the third transmission resource and the PDCCH are greater than the first time length or the second time length, and the transmission time interval between the second transmission resource and the PDCCH is minimum, the second transmission resource is selected to transmit the first HARQ-ACK information.
Optionally, the position of the first HARQ-ACK information in the HARQ-ACK codebook is predefined by a protocol.
It should be noted that, in addition to the first HARQ-ACK information, the HARQ-ACK codebook may further include other HARQ-ACK information. Therefore, the position of the first HARQ-ACK information in the HARQ-ACK codebook can be predefined through a protocol, so that the network side equipment can accurately identify the first HARQ-ACK information.
For example: the HARQ-ACK codebook in which the first HARQ-ACK information is located further includes: second HARQ-ACK information corresponding to a PDSCH and/or third HARQ-ACK information corresponding to a PDSCH (Semi-Persistent Scheduling) release, the first HARQ-ACK information being agreed by a protocol to be located at a start position or an end position of the HARQ-ACK codebook.
In the embodiment of the invention, a method for controlling an auxiliary cell applied to a terminal is provided, wherein the terminal receives a PDCCH, the PDCCH carries DCI, and the DCI comprises first indication information used for indicating the terminal to activate or deactivate a target auxiliary cell; activating or deactivating the target secondary cell. Therefore, the steps of receiving the PDSCH after receiving and decoding the PDCCH, searching for activation or deactivation indication information from the PDSCH and the like which need to be carried out in the process of activating or deactivating the secondary cell based on the MAC CE are avoided, and the problem of low speed of activating or deactivating the secondary cell in the prior art is solved.
Fig. 3 is a structural diagram of a first network-side device according to an embodiment of the present invention. As shown in fig. 3, the network-side device 300 includes a first processor 301 and a first transceiver 302:
the first transceiver 302 is configured to send a physical downlink control channel PDCCH, where the PDCCH carries downlink control information DCI, and the DCI includes first indication information, and is used to indicate a terminal to activate or deactivate a target secondary cell.
The first processor 301 may generate DCI information.
Optionally, the DCI further includes second indication information for indicating the terminal to activate or deactivate the target BWP in the target secondary cell.
Optionally, the position of the first indication information and/or the second indication information of the terminal in the DCI is notified by protocol predefined or higher layer signaling.
Optionally, the network-side device 300 further includes:
a second transceiver, configured to transmit a PDCCH and/or a PDSCH in a target secondary cell after a first time point, a second time point, or a third time point, if the first indication information indicates that the terminal activates the target secondary cell;
the first time point is a time point at which a time interval from a time point at which the PDCCH is transmitted is equal to a first time interval D1;
the second time point is a time point when the network side equipment receives the ACK corresponding to the PDCCH;
the third time point is a time point at which a time interval from the second time point is equal to a second time interval D2.
The first transceiver 302 and the second transceiver may be the same transceiver.
Optionally, the D1 or D2 is predefined by a protocol or reported by the terminal.
The first network side device provided in the embodiment of the present invention can implement each step executed by the network side device in the secondary cell control method shown in fig. 1, and can obtain the same beneficial effect, and for avoiding repetition, details are not described here again.
Referring to fig. 4, a structural diagram of a second network-side device according to an embodiment of the present invention is shown in fig. 4, where the second network-side device includes:
the first sending module 401 is configured to send a physical downlink control channel PDCCH, where the PDCCH carries downlink control information DCI, and the DCI includes first indication information, and is used to indicate a terminal to activate or deactivate a target secondary cell.
Optionally, the DCI further includes second indication information for indicating the terminal to activate or deactivate the target BWP in the target secondary cell.
Optionally, the position of the first indication information and/or the second indication information of the terminal in the DCI is notified by protocol predefined or higher layer signaling.
Optionally, the second network-side device further includes:
a second sending module, configured to send the PDCCH and/or PDSCH in the target secondary cell after the first time point, the second time point, or the third time point when the first indication information indicates that the terminal activates the target secondary cell;
the first time point is a time point at which a time interval from a time point at which the PDCCH is transmitted is equal to a first time interval D1;
the second time point is a time point when the network side equipment receives the ACK corresponding to the PDCCH;
the third time point is a time point at which a time interval from the second time point is equal to a second time interval D2.
Optionally, the D1 or D2 is predefined by a protocol or reported by the terminal.
The second network side device provided in the embodiment of the present invention can implement each step executed by the network side device in the secondary cell control method shown in fig. 1, and can obtain the same beneficial effect, and is not described herein again to avoid repetition.
Referring to fig. 5, which is a structural diagram of a first terminal according to an embodiment of the present invention, as shown in fig. 5, the terminal 500 includes a second processor 501 and a third transceiver 502:
a third transceiver 502, configured to receive a physical downlink control channel PDCCH, where the PDCCH carries downlink control information DCI, where the DCI includes first indication information, and is used to indicate a terminal to activate or deactivate a target secondary cell;
a second processor 501, configured to activate or deactivate the target secondary cell.
Optionally, the DCI further includes second indication information for indicating the terminal to activate or deactivate the target BWP in the target secondary cell;
a second processor 501 is configured to activate or deactivate the target BWP in the target secondary cell.
Optionally, the position of the first indication information and/or the second indication information in the DCI is configured by protocol predefined or higher layer signaling.
Optionally, the terminal 500 further includes:
a fourth transceiver, configured to detect a PDCCH and/or receive a physical downlink shared channel PDSCH and/or send a physical uplink shared channel PUSCH on the target secondary cell after a fourth time point, a fifth time point, or a sixth time point, when the first indication information is received to indicate that the terminal activates the target secondary cell;
the fourth time point is a time point at which a time interval from a time point at which the PDCCH is received is equal to a third time interval D3;
the fifth time point is a time point when the terminal sends an Acknowledgement (ACK) corresponding to the PDCCH;
the sixth time point is a time point at which a time interval from the fifth time point is equal to a fourth time interval D4.
Optionally, the D3 or D4 is predefined by a protocol or reported by the terminal.
Optionally, the terminal 500 further includes:
and the fifth transceiver is used for transmitting the first HARQ-ACK information corresponding to the PDCCH.
Optionally, the target transmission resource for transmitting the first HARQ-ACK information is: in the initial resource set, uplink transmission resources with the minimum time interval with the time point of receiving the PDCCH are obtained;
the initial set of resources is: in the uplink transmission resources allocated or indicated for the terminal, after the time point of the PDCCH is received, the time interval between the time point of the PDCCH and the time point of the PDCCH is greater than a transmission resource with a first duration or a second duration, the first duration is a value predefined by a protocol or PDSCH processing time of the terminal, and the second duration is PUSCH preparation time of the terminal.
The third transceiver 502, the fourth transceiver, and the fifth transceiver may be the same transceiver.
Optionally, the position of the first HARQ-ACK information in the HARQ-ACK codebook is predefined by a protocol.
Optionally, the HARQ-ACK codebook in which the first HARQ-ACK information is located further includes: second HARQ-ACK information corresponding to the PDSCH and/or third HARQ-ACK information corresponding to the SPS PDSCH release, the first HARQ-ACK information being located at a start position or an end position of the HARQ-ACK codebook.
The first terminal provided in the embodiment of the present invention can implement each step executed by the terminal in the secondary cell control method shown in fig. 2, and can obtain the same beneficial effect, and is not described herein again to avoid repetition.
Referring to fig. 6, which is a structural diagram of a second terminal according to an embodiment of the present invention, as shown in fig. 6, the terminal 600 includes:
a receiving module 601, configured to receive a physical downlink control channel PDCCH, where the PDCCH carries downlink control information DCI, where the DCI includes first indication information, and is used to indicate a terminal to activate or deactivate a target secondary cell;
an executing module 602, configured to activate or deactivate the target secondary cell.
Optionally, the DCI further includes second indication information for indicating the terminal to activate or deactivate the target BWP in the target secondary cell;
the execution module 602 is specifically configured to:
activating or deactivating the target BWP in the target secondary cell.
Optionally, the position of the first indication information and/or the second indication information in the DCI is configured by protocol predefined or higher layer signaling.
Optionally, the terminal 600 further includes:
a transceiver module, configured to detect a PDCCH and/or receive a physical downlink shared channel PDSCH and/or send a physical uplink shared channel PUSCH on the target secondary cell after a fourth time point, a fifth time point, or a sixth time point, when the first indication information is received to indicate that the terminal activates the target secondary cell;
the fourth time point is a time point at which a time interval from a time point at which the PDCCH is received is equal to a third time interval D3;
the fifth time point is a time point when the terminal sends an Acknowledgement (ACK) corresponding to the PDCCH;
the sixth time point is a time point at which a time interval from the fifth time point is equal to a fourth time interval D4.
Optionally, the D3 or D4 is predefined by a protocol or reported by the terminal.
Optionally, the terminal 700 further includes:
and the transmission module is used for transmitting the first HARQ-ACK information corresponding to the PDCCH.
Optionally, the target transmission resource for transmitting the first HARQ-ACK information is: in the initial resource set, uplink transmission resources with the minimum time interval with the time point of receiving the PDCCH are obtained;
the initial set of resources is: in the uplink transmission resources allocated or indicated for the terminal, after the time point of the PDCCH is received, the time interval between the time point of the PDCCH and the time point of the PDCCH is greater than a transmission resource with a first duration or a second duration, the first duration is a value predefined by a protocol or PDSCH processing time of the terminal, and the second duration is PUSCH preparation time of the terminal.
It should be noted that the receiving module, the transceiver module and the transmission module may be the same transceiver.
Optionally, the position of the first HARQ-ACK information in the HARQ-ACK codebook is predefined by a protocol.
Optionally, the HARQ-ACK codebook in which the first HARQ-ACK information is located further includes: second HARQ-ACK information corresponding to the PDSCH and/or third HARQ-ACK information corresponding to the SPS PDSCH release, the first HARQ-ACK information being located at a start position or an end position of the HARQ-ACK codebook.
The second terminal provided in the embodiment of the present invention can implement each step executed by the terminal in the secondary cell control method shown in fig. 2, and can obtain the same beneficial effect, and is not described herein again to avoid repetition.
Referring to fig. 7, which is a structural diagram of a communication device according to an embodiment of the present invention, as shown in fig. 7, the communication device includes: a third processor 701, a memory 702, and a first computer program 7021 stored in the memory 702 and operable on the third processor 701, where the first computer program 7021, when executed by the third processor 701, implements any step in the method embodiment corresponding to fig. 1 or fig. 2 and achieves the same beneficial effect, and details are not repeated here.
Those skilled in the art will appreciate that all or part of the steps of the method described above can be implemented by hardware associated with program instructions, and the program can be stored in a computer readable medium. An embodiment of the present invention further provides a computer storage medium, where a second computer program is stored in the computer readable storage medium, and when the second computer program is executed by a third processor, the steps of the secondary cell control method shown in fig. 1 or fig. 2 are implemented, and the same beneficial effects can be achieved, and are not described herein again to avoid repetition.
In the several embodiments provided in the present application, it should be understood that the disclosed method and apparatus may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the modules is merely a logical division, and in actual implementation, there may be other divisions, for example, multiple modules or components may be combined or integrated into another system, or some features may be omitted, or not implemented. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or modules, and may be in an electrical, mechanical or other form.
The integrated module implemented in the form of a software functional module may be stored in a computer-readable storage medium. The software functional module is stored in a storage medium and includes several instructions to enable a computer device (which may be a personal computer, a server, or a network device) to execute some steps of the method for determining qos parameters according to various embodiments of the present invention. And the aforementioned storage medium includes: 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.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (30)
1. A secondary cell control method is used for network side equipment, and is characterized in that the secondary cell control method comprises the following steps:
and sending a Physical Downlink Control Channel (PDCCH), wherein the PDCCH carries Downlink Control Information (DCI), and the DCI comprises first indication information and is used for indicating a terminal to activate or deactivate a target secondary cell.
2. The secondary cell control method of claim 1, wherein the DCI further includes second indication information for indicating the terminal to activate or deactivate the target bandwidth part BWP in the target secondary cell.
3. The secondary cell control method according to claim 1 or 2, wherein the position of the first indication information and/or the second indication information of the terminal in the DCI is signaled by a protocol predefined or a higher layer signaling.
4. The secondary cell control method according to claim 1 or 2, wherein after transmitting the PDCCH, the method further comprises:
under the condition that the first indication information indicates that the terminal activates the target secondary cell, sending a PDCCH and/or a PDSCH in the target secondary cell after a first time point, a second time point or a third time point;
the first time point is a time point at which a time interval from a time point at which the PDCCH is transmitted is equal to a first time interval D1;
the second time point is a time point when the network side equipment receives the acknowledgement ACK corresponding to the PDCCH;
the third time point is a time point at which a time interval from the second time point is equal to a second time interval D2.
5. The secondary cell control method of claim 4, wherein the D1 or D2 is predefined by a protocol or reported by the terminal.
6. A secondary cell control method is used for a terminal, and is characterized in that the secondary cell control method comprises the following steps:
receiving a Physical Downlink Control Channel (PDCCH), wherein the PDCCH carries Downlink Control Information (DCI), and the DCI comprises first indication information and is used for indicating a terminal to activate or deactivate a target secondary cell;
activating or deactivating the target secondary cell.
7. The secondary cell control method according to claim 6, wherein the DCI further includes second indication information for indicating the terminal to activate or deactivate the target bandwidth part BWP in the target secondary cell;
the activating or deactivating the target secondary cell specifically includes:
activating or deactivating the target BWP in the target secondary cell.
8. The secondary cell control method according to claim 6 or 7, wherein the position of the first indication information and/or the second indication information in the DCI is configured by protocol predefining or higher layer signaling.
9. The secondary cell control method according to claim 6 or 7, further comprising:
under the condition that the first indication information is received to indicate that the terminal activates the target secondary cell, after a fourth time point, a fifth time point or a sixth time point, detecting a PDCCH on the target secondary cell and/or receiving a Physical Downlink Shared Channel (PDSCH) and/or sending a Physical Uplink Shared Channel (PUSCH);
the fourth time point is a time point at which a time interval from a time point at which the PDCCH is received is equal to a third time interval D3;
the fifth time point is a time point when the terminal sends an Acknowledgement (ACK) corresponding to the PDCCH;
the sixth time point is a time point at which a time interval from the fifth time point is equal to a fourth time interval D4.
10. The secondary cell control method of claim 9, wherein the D3 or D4 is predefined by a protocol or reported by the terminal.
11. The secondary cell control method according to claim 9, wherein after the terminal receives the PDCCH, the method further comprises:
and transmitting first hybrid automatic repeat request-acknowledgement HARQ-ACK information corresponding to the PDCCH.
12. The secondary cell control method of claim 11, wherein:
the target transmission resource for transmitting the first HARQ-ACK information is as follows: in the initial resource set, uplink transmission resources with the minimum time interval with the time point of receiving the PDCCH are obtained;
the initial set of resources is: in the uplink transmission resources allocated or indicated for the terminal, after the time point of the PDCCH is received, the time interval between the time point of the PDCCH and the time point of the PDCCH is greater than a transmission resource with a first duration or a second duration, the first duration is a value predefined by a protocol or PDSCH processing time of the terminal, and the second duration is PUSCH preparation time of the terminal.
13. The secondary cell control method of claim 11, wherein the position of the first HARQ-ACK information in a HARQ-ACK codebook is predefined by a protocol.
14. The secondary cell control method of claim 11, wherein the HARQ-ACK codebook in which the first HARQ-ACK information is located further comprises: second HARQ-ACK information corresponding to the PDSCH and/or third HARQ-ACK information corresponding to semi-persistent scheduling (SPS) PDSCH release, wherein the first HARQ-ACK information is positioned at the starting position or the ending position of the HARQ-ACK codebook.
15. A network-side device, comprising a first processor and a first transceiver:
the first transceiver is configured to send a physical downlink control channel PDCCH, where the PDCCH carries downlink control information DCI, and the DCI includes first indication information and is used to indicate a terminal to activate or deactivate a target secondary cell.
16. The network-side device of claim 15, wherein the DCI further includes second indication information for indicating the terminal to activate or deactivate the target bandwidth part BWP in the target secondary cell.
17. The network-side device according to claim 15 or 16, wherein a position of the first indication information and/or the second indication information of the terminal in the DCI is signaled by a protocol predefined or a higher layer signaling.
18. The network-side device according to claim 15 or 16, further comprising:
a second transceiver, configured to send a PDCCH and/or a PDSCH in a target secondary cell after a first time point, a second time point, or a third time point when the first indication information indicates that the terminal activates the target secondary cell;
the first time point is a time point at which a time interval from a time point at which the PDCCH is transmitted is equal to a first time interval D1;
the second time point is a time point when the network side equipment receives the acknowledgement ACK corresponding to the PDCCH;
the third time point is a time point at which a time interval from the second time point is equal to a second time interval D2.
19. The network-side device of claim 18, wherein the D1 or D2 is predefined by a protocol or reported by the terminal.
20. A terminal, comprising a first processor and a third transceiver:
the third transceiver is configured to receive a physical downlink control channel PDCCH, where the PDCCH carries downlink control information DCI, where the DCI includes first indication information and is used to indicate a terminal to activate or deactivate a target secondary cell;
the first processor is configured to activate or deactivate the target secondary cell.
21. The terminal of claim 20, wherein the DCI further includes second indication information for indicating the terminal to activate or deactivate a target bandwidth part BWP in the target secondary cell;
the processor is configured to activate or deactivate the target BWP in the target secondary cell.
22. The terminal according to claim 20 or 21, wherein the position of the first indication information and/or the second indication information in the DCI is configured by protocol predefining or higher layer signaling.
23. The terminal according to claim 20 or 21, further comprising:
a fourth transceiver, configured to detect a PDCCH and/or receive a physical downlink shared channel PDSCH and/or send a physical uplink shared channel PUSCH on the target secondary cell after a fourth time point, a fifth time point, or a sixth time point, when the first indication information is received to indicate that the terminal activates the target secondary cell;
the fourth time point is a time point at which a time interval from a time point at which the PDCCH is received is equal to a third time interval D3;
the fifth time point is a time point when the terminal sends an Acknowledgement (ACK) corresponding to the PDCCH;
the sixth time point is a time point at which a time interval from the fifth time point is equal to a fourth time interval D4.
24. The terminal of claim 23, wherein the D3 or D4 is predefined by a protocol or reported by the terminal.
25. The terminal of claim 23, further comprising:
and the fifth transceiver is used for transmitting first hybrid automatic repeat request-acknowledgement (HARQ-ACK) information corresponding to the PDCCH.
26. The terminal of claim 25,
the target transmission resource for transmitting the first HARQ-ACK information is as follows: in the initial resource set, uplink transmission resources with the minimum time interval with the time point of receiving the PDCCH are obtained;
the initial set of resources is: in the uplink transmission resources allocated or indicated for the terminal, after the time point of the PDCCH is received, the time interval between the time point of the PDCCH and the time point of the PDCCH is greater than a transmission resource with a first duration or a second duration, the first duration is a value predefined by a protocol or PDSCH processing time of the terminal, and the second duration is PUSCH preparation time of the terminal.
27. The terminal of claim 25, wherein the position of the first HARQ-ACK information in a HARQ-ACK codebook is predefined by a protocol.
28. The terminal of claim 25, wherein the HARQ-ACK codebook in which the first HARQ-ACK information is located further comprises: second HARQ-ACK information corresponding to the PDSCH and/or third HARQ-ACK information corresponding to semi-persistent scheduling (SPS) PDSCH release, wherein the first HARQ-ACK information is positioned at the starting position or the ending position of the HARQ-ACK codebook.
29. A communication device comprising a third processor, a memory and a first computer program stored on the memory and executable on the third processor, the first computer program, when executed by the third processor, implementing the steps of the secondary cell control method as claimed in any one of claims 1 to 5 or implementing the steps of the secondary cell control method as claimed in any one of claims 6 to 14.
30. A computer-readable storage medium, characterized in that the computer-readable storage medium has stored thereon a second computer program which, when being executed by a third processor, carries out the steps of the secondary cell control method according to any one of claims 1 to 5; or the steps of a secondary cell control method as claimed in any of claims 6 to 14.
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| CN201811271536.1A CN111106912A (en) | 2018-10-29 | 2018-10-29 | Auxiliary cell control method, network side equipment and terminal |
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| CN201811271536.1A CN111106912A (en) | 2018-10-29 | 2018-10-29 | Auxiliary cell control method, network side equipment and terminal |
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