WO2020063377A1 - 下行控制信道传输方法、终端和网络侧设备 - Google Patents
下行控制信道传输方法、终端和网络侧设备 Download PDFInfo
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- WO2020063377A1 WO2020063377A1 PCT/CN2019/105895 CN2019105895W WO2020063377A1 WO 2020063377 A1 WO2020063377 A1 WO 2020063377A1 CN 2019105895 W CN2019105895 W CN 2019105895W WO 2020063377 A1 WO2020063377 A1 WO 2020063377A1
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- coreset
- downlink control
- control channel
- coresets
- target
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- 238000000034 method Methods 0.000 title claims abstract description 48
- 238000012544 monitoring process Methods 0.000 claims description 49
- 230000005540 biological transmission Effects 0.000 claims description 27
- 238000004590 computer program Methods 0.000 claims description 10
- 238000001514 detection method Methods 0.000 claims description 8
- 230000006399 behavior Effects 0.000 description 9
- 238000010586 diagram Methods 0.000 description 8
- 238000005516 engineering process Methods 0.000 description 4
- 230000006870 function Effects 0.000 description 4
- 238000004891 communication Methods 0.000 description 3
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 238000007726 management method Methods 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010295 mobile communication Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000013468 resource allocation Methods 0.000 description 1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
- H04W16/24—Cell structures
- H04W16/28—Cell structures using beam steering
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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
- H04L5/0001—Arrangements for dividing the transmission path
- H04L5/0014—Three-dimensional division
- H04L5/0023—Time-frequency-space
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/08—Testing, supervising or monitoring using real traffic
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/02—Selection of wireless resources by user or terminal
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
- H04W72/044—Wireless resource allocation based on the type of the allocated resource
- H04W72/046—Wireless resource allocation based on the type of the allocated resource the resource being in the space domain, e.g. beams
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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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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W74/00—Wireless channel access
- H04W74/08—Non-scheduled access, e.g. ALOHA
- H04W74/0808—Non-scheduled access, e.g. ALOHA using carrier sensing, e.g. carrier sense multiple access [CSMA]
- H04W74/0816—Non-scheduled access, e.g. ALOHA using carrier sensing, e.g. carrier sense multiple access [CSMA] with collision avoidance
Definitions
- the present disclosure relates to the field of communication technologies, and in particular, to a downlink control channel transmission method, a terminal, and a network-side device.
- the 5G (5th-Generation, fifth-generation mobile communication technology) system introduces the concept of CORESET (control-resource set).
- the time domain resource of CORESET consists of 1 to 3 OFDM (Orthogonal Frequency, Division, Multiplexing, Orthogonal). (Frequency division multiplexing technology) symbol composition, in the frequency domain, a 45-bit bitmap (bitmap) is used to indicate continuous or discrete multiple resource groups with six consecutive RBs (resource blocks) as the granularity.
- the resource allocation is very flexible. Search spaces with different listening periods are transmitted in the same or different CORESETs.
- Each CORESET can be independently configured with a beam direction, that is, different CORESETs can be configured with different beam directions (that is, Type-D QCL).
- the terminal When CORESETs configured with different beam directions overlap (or overlap) in the configured resources, and search spaces belonging to different CORESETs collide on the same PDCCH (Physical Downlink Control Channel), the terminal only Can receive data in the direction of a beam, but at this time the behavior of the base station and the terminal is not clearly defined.
- PDCCH Physical Downlink Control Channel
- the embodiments of the present disclosure provide a downlink control channel transmission method, a terminal, and a network-side device, which are used to solve the problem that the behaviors of the base station and the terminal are not clearly defined when the physical resources of the CORESETs configured with different beam directions overlap.
- some embodiments of the present disclosure provide a downlink control channel transmission method, which is applied to a terminal and includes:
- a target CORESET is selected from the different CORESETs according to the type of the conflicting search space, and the monitoring times conflict is
- the monitoring time is the same and the resources configured by the different CORESETs overlap, or the time interval for the monitoring time is less than a specified threshold
- the selecting a target CORESET from the different CORESETs according to a type of a search space in which the conflict occurs includes:
- the selecting a target CORESET from the different CORESETs according to a type of a search space in which the conflict occurs includes:
- a CORESET having the lowest number is selected as the target CORESET from at least two CORESETs transmitting the common search space.
- the selecting a target CORESET from the different CORESETs according to a type of a search space in which the conflict occurs includes:
- a CORESET having the lowest number is selected from the different CORESETs as the target CORESET.
- the detecting and receiving a downlink control channel according to a beam direction of the target CORESET includes:
- each of the different CORESETs detecting and receiving a downlink control channel according to a beam direction of the target CORESET;
- the downlink control channel is detected and received only in the target CORESET according to the beam direction of the target CORESET, and the downlink control channel is not detected in other CORESETs other than the target CORESET among the different CORESETs.
- some embodiments of the present disclosure further provide a downlink control channel transmission method, which is applied to a network-side device, including:
- the time of sending the downlink control channel conflicts is that the time of sending the downlink control channel is the same and the resources configured by the different CORESETs overlap, or , The time interval for sending the downlink control channel is less than the specified threshold;
- the selecting a target CORESET from the different CORESETs according to the types of search spaces in which the different CORESETs conflict includes:
- the selecting a target CORESET from the different CORESETs according to the types of search spaces in which the different CORESETs conflict includes:
- a CORESET having the lowest number is selected as the target CORESET from at least two CORESETs transmitting the common search space.
- the selecting a target CORESET from the different CORESETs according to the types of search spaces in which the different CORESETs conflict includes:
- a CORESET having the lowest number is selected from the different CORESETs as the target CORESET.
- the sending a downlink control channel according to a beam direction of the target CORESET includes:
- a downlink control channel is sent according to a beam direction of the target CORESET;
- the downlink control channel is sent only in the target CORESET according to its beam direction, and the downlink control channel is not sent in other CORESETs other than the target CORESET in the different CORESETs.
- some embodiments of the present disclosure further provide a terminal, including:
- the first target CORESET determining module is configured to select a target from the different CORESETs according to the type of the conflicting search space when the listening times of the search spaces transmitted in different control resource sets CORESET with different beam directions are configured to conflict.
- CORESET where the listening time conflicts are the same listening time and the resources configured by the different CORESETs overlap, or the time interval of the listening time is less than a specified threshold;
- the detection and reception module is configured to detect and receive a downlink control channel according to a beam direction of the target CORESET.
- the first target CORESET determination module includes:
- a first determining unit is configured to determine to transmit a CORESET of the common search space as the target CORESET when only one of the conflicting search spaces is a common search space.
- the first target CORESET determination module includes:
- a second determining unit configured to: when at least two of the conflicting search spaces are common search spaces, select a CORESET having the lowest number from the at least two CORESETs transmitting the common search space as the target CORESET .
- the first target CORESET determination module includes:
- a third determining unit is configured to select a CORESET having the lowest number from the different CORESETs as the target CORESET when the conflicting search spaces are all dedicated search spaces.
- the detecting and receiving module includes:
- a first detection and receiving unit configured to detect and receive a downlink control channel in the different CORESETs in accordance with a beam direction of the target CORESET;
- a second detection and receiving unit configured to detect and receive a downlink control channel only in the target CORESET according to a beam direction of the target CORESET, and not to detect downlink in other CORESETs other than the target CORESET among the different CORESETs Control channel.
- some embodiments of the present disclosure further provide a network-side device, including:
- a sending module configured to select a target CORESET from the different CORESETs when different CORESETs configured with different beam directions need to transmit a downlink control channel at a time, and select a target CORESET from the different CORESETs, and Sending a downlink control channel according to the beam direction of the target CORESET, or sending downlink control channels according to their respective beam directions in the different CORESETs;
- the conflict in the timing of sending the downlink control channel is that the timing of sending the downlink control channel is the same and the resources configured by the different CORESETs overlap, or that the time interval for sending the downlink control channel is less than a specified threshold.
- the sending module includes:
- a fourth determining unit is configured to determine to transmit a CORESET of the public search space as the target CORESET when only one of the conflicting search spaces is a public search space.
- the sending module includes:
- a fifth determining unit configured to: when at least two of the conflicting search spaces are common search spaces, select a CORESET having the lowest number from the at least two CORESETs transmitting the common search space as the target CORESET .
- the sending module includes:
- a sixth determining unit is configured to select a CORESET having the lowest number from the different CORESETs as the target CORESET when the conflicting search spaces are all dedicated search spaces.
- the sending module includes:
- a first sending unit configured to send a downlink control channel in the different CORESETs according to a beam direction of the target CORESET;
- the second sending unit is configured to send the downlink control channel only in the target CORESET according to its beam direction, and not to send the downlink control channel in the CORESET other than the target CORESET among the different CORESETs.
- some embodiments of the present disclosure further provide a terminal, including a transceiver, a memory, a processor, and a computer program stored on the memory and executable on the processor.
- the processor is configured to select a target CORESET from the different CORESETs according to the type of the conflicting search space when a listening time of a search space transmitted in different control resource sets CORESET configured with different beam directions conflicts,
- the conflict at the monitoring time is that the monitoring time is the same and the resources configured by the different CORESETs overlap, or that the time interval of the monitoring time is less than a specified threshold;
- the transceiver is configured to detect and receive a downlink control channel according to a beam direction of the target CORESET.
- the processor is configured to, when only one of the conflicting search spaces is a common search space, determine to transmit a CORESET of the common search space as the target CORESET.
- the processor is configured to, when at least two of the conflicting search spaces are common search spaces, select a CORESET having the lowest number from at least two CORESETs transmitting the common search space as The target CORESET.
- the processor is configured to select a CORESET having the lowest number from the different CORESETs as the target CORESET when the conflicting search spaces are all dedicated search spaces.
- the transceiver is configured to detect and receive a downlink control channel in the different CORESETs in accordance with the beam direction of the target CORESET; or only in accordance with the beam of the target CORESET in the target CORESET The direction detects and receives the downlink control channel, and does not detect the downlink control channel in the CORESET other than the target CORESET among the different CORESETs.
- some embodiments of the present disclosure further provide a network-side device, including a transceiver, a memory, a processor, and a computer program stored on the memory and executable on the processor.
- the processor is configured to select a target CORESET from the different CORESETs when different CORESETs configured with different beam directions need to transmit downlink control channels at a time according to a type of a search space in which the different CORESETs conflict.
- the transceiver is configured to send a downlink control channel according to a beam direction of the target CORESET; or
- the transceiver is configured to send a downlink control channel according to a respective beam direction in each of the different CORESETs when a conflict occurs when different CORESETs configured with different beam directions need to transmit a downlink control channel;
- the conflict in the timing of sending the downlink control channel is that the timing of sending the downlink control channel is the same and the resources configured by the different CORESETs overlap, or that the time interval for sending the downlink control channel is less than a specified threshold.
- the processor is configured to, when only one of the conflicting search spaces is a common search space, determine to transmit a CORESET of the common search space as the target CORESET.
- the processor is configured to, when at least two of the conflicting search spaces are common search spaces, select a CORESET having the lowest number from at least two CORESETs transmitting the common search space as The target CORESET.
- the processor is configured to select a CORESET having the lowest number from the different CORESETs as the target CORESET when the conflicting search spaces are all dedicated search spaces.
- the transceiver is configured to send a downlink control channel in the different CORESETs according to a beam direction of the target CORESET; or send a downlink control channel only in the target CORESET according to a beam direction thereof, And do not send a downlink control channel in the CORESET other than the target CORESET among the different CORESETs.
- some embodiments of the present disclosure further provide a computer-readable storage medium having stored thereon a computer program that, when executed by a processor, implements steps in any one of the above-mentioned downlink control channel transmission methods.
- a target is selected from the different CORESETs according to the type of the conflicting search space.
- CORESET and detects and receives a downlink control channel according to the beam direction of the target CORESET, the conflicts in the listening time are the same listening time and the resources configured by the different CORESETs overlap, or the time interval between the listening times is less than a specified threshold .
- FIG. 1 is a schematic flowchart of a downlink control channel transmission method applied to a terminal in some embodiments of the present disclosure
- FIG. 2 is a schematic flowchart of a downlink control channel transmission method applied to a network-side device in some embodiments of the present disclosure
- FIG. 3 is a schematic structural diagram of a terminal according to some embodiments of the present disclosure.
- FIG. 4 is a schematic structural diagram of a network side device in some embodiments of the present disclosure.
- FIG. 5 is a schematic structural diagram of a terminal in some embodiments of the present disclosure.
- FIG. 6 is a schematic structural diagram of a network-side device in some embodiments of the present disclosure.
- FIG. 1 is a schematic flowchart of a downlink control channel transmission method provided by some embodiments of the present disclosure. The method is applied to a terminal and includes steps 11 and 12.
- Step 11 When the monitoring time of the search space transmitted in different control resource sets (CORESET) configured with different beam directions conflicts, according to the type of the search space (SS) that conflicts, the different CORESET Select the target CORESET in the conflict, the conflict at the monitoring time is the same monitoring time and the resources configured by the different CORESETs overlap, or the time interval of the monitoring time is less than a specified threshold;
- CORESET control resource sets
- Step 12 Detect and receive a downlink control channel according to the beam direction of the target CORESET.
- the listening time of the search space transmitted in different control resource sets CORESET configured with different beam directions conflicts, according to the type of the search space in which the conflict occurs, A target CORESET is selected among different CORESETs, and a downlink control channel is detected and received according to a beam direction of the target CORESET.
- the conflicts in the monitoring time are the same monitoring time and the different CORESETs have overlapping resources or the time interval is less than Specify the threshold.
- the selecting a target CORESET from the different CORESETs according to the type of the search space where the conflict occurs includes:
- the terminal when the terminal monitors multiple search spaces transmitted in different CORESETs at the same monitoring time or two monitoring times with a time interval less than a specified threshold, the terminal preferentially receives the common search space, that is, it is determined to occur A CORESET corresponding to a common search space in the conflicting search space is used as the target CORESET, and a downlink control channel is detected and received according to a beam direction of the target CORESET.
- selecting the target CORESET from the different CORESETs according to the type of the search space where the conflict occurs includes:
- a CORESET having the lowest number is selected as the target CORESET from at least two CORESETs transmitting the common search space.
- selecting the target CORESET from the different CORESETs according to the type of the search space where the conflict occurs includes:
- a CORESET with the lowest number is selected from the different CORESETs as the target CORESET.
- detecting and receiving a downlink control channel according to the beam direction of the target CORESET includes:
- each of the different CORESETs detecting and receiving a downlink control channel according to a beam direction of the target CORESET;
- the downlink control channel is detected and received only in the target CORESET according to the beam direction of the target CORESET, and the downlink control channel is not detected in other CORESETs other than the target CORESET among the different CORESETs.
- FIG. 2 is a schematic flowchart of a method for transmitting a downlink control channel according to some embodiments of the present disclosure.
- the method is applied to a network-side device, and includes step 21.
- Step 21 When different CORESETs configured with different beam directions need to transmit a downlink control channel, the time of sending the downlink control channel conflicts is that the time of sending the downlink control channel is the same and the resources of the different CORESET configurations have Overlap, or the time interval for sending the downlink control channel is less than a specified threshold,
- a target CORESET is selected, and a downlink control channel is sent according to a beam direction of the target CORESET, or a downlink control channel is sent in each of the different CORESETs according to a respective beam direction.
- the conflicts in the timing of sending the downlink control channel may be that the timings of sending the downlink control channel are the same and the different CORESETs overlap in configured resources, or the time interval is less than a specified threshold.
- the network-side device may be a base station.
- the selecting a target CORESET from the different CORESETs according to the types of search spaces that conflict in the different CORESETs includes:
- different CORESETs configured with different beam directions need to transmit downlink control channels at the same time (the resources configured for different CORESETs overlap) or at two adjacent times with a time interval less than a specified threshold.
- the base station preferentially transmits the common search space, that is, determines the CORESET corresponding to the common search space in the conflicting search space as the target CORESET, and sends a downlink control channel according to the beam direction of the target CORESET.
- selecting the target CORESET from the different CORESETs according to the types of search spaces in which the different CORESETs conflict includes:
- a CORESET having the lowest number is selected as the target CORESET from at least two CORESETs transmitting the common search space.
- selecting the target CORESET from the different CORESETs according to the types of search spaces in which the different CORESETs conflict includes:
- a CORESET having the lowest number is selected from the different CORESETs as the target CORESET.
- sending the downlink control channel according to the beam direction of the target CORESET includes:
- a downlink control channel is sent according to a beam direction of the target CORESET;
- the downlink control channel is sent only in the target CORESET according to its beam direction, and the downlink control channel is not sent in other CORESETs other than the target CORESET in the different CORESETs.
- Some embodiments of the present disclosure provide a downlink control channel transmission method, as follows:
- the base station configures two CORESETs for the terminal (such as UE1), namely CORESET # 1 and CORESET # 2, and configures different beam directions.
- CORESET # 1 corresponds to the beam direction beam # 1
- CORESET # 2 corresponds to the beam direction.
- beam # 2 the downlink control channels transmitted in CORESET # 1 are transmitted on beam # 1
- the downlink control channels transmitted in CORESET # 2 are transmitted on beam # 2.
- three search spaces ⁇ USS # 3, USS # 4, USS # 5 ⁇ are configured on CORESET # 1
- two search spaces ⁇ CSS # 1 USS # 2 ⁇ are configured on CORESET # 2.
- the terminal detects and receives the downlink control channel according to the beam direction (beam # 2) of the CORESET # 2 where the CSS # 1 is transmitted.
- the terminal detects and receives the downlink control channel in CORESET # 1 according to beam # 2; or, the terminal does not monitor (detect) the downlink control channel in CORESET # 1.
- the base station sends a downlink control channel according to the beam direction (beam # 2) of CORESET # 2 where CSS # 1 is transmitted.
- the base station sends a downlink control channel according to beam # 2 in CORESET # 1; or the base station does not send a downlink control channel in CORESET # 1.
- Some embodiments of the present disclosure provide a downlink control channel transmission method, as follows:
- the base station configures two CORESETs for the terminal (such as UE1), namely CORESET # 1 and CORESET # 2, and configures different beam directions, for example, CORESET # 1 corresponds to the beam direction beam # 1, and CORESET # 2 corresponds to the beam Direction beam # 2. That is, the downlink control channels transmitted in CORESET # 1 are transmitted on beam # 1, and the downlink control channels transmitted in CORESET # 2 are transmitted on beam # 2. Assume that three search spaces ⁇ CSS # 3, USS # 4, USS # 5 ⁇ are configured on CORESET # 1, and two search spaces ⁇ CSS # 1, USS # 2 ⁇ are configured on CORESET # 2.
- the base station and the terminal determine how to send and receive the downlink control channel at the listening time according to the following rules:
- the terminal detects and receives the downlink control channel according to the beam direction (beam # 1) of the CORESET # 1 (the lowest number).
- the terminal detects and receives the downlink control channel according to beam # 1 in CORESET # 2; or, the terminal does not monitor (detect) the downlink control channel in CORESET # 2.
- the base station sends a downlink control channel according to the beam direction (beam # 1) of CORESET # 1.
- the base station sends the downlink control channel according to beam # 1 in CORESET # 2; or the base station does not send the downlink control channel in CORESET # 2.
- Some embodiments of the present disclosure provide a downlink control channel transmission method, as follows:
- the base station configures two CORESETs for the terminal (such as UE1), namely CORESET # 1 and CORESET # 2, and configures different beam directions, for example, CORESET # 1 corresponds to the beam direction beam # 1, and CORESET # 2 corresponds to the beam Direction beam # 2. That is, the downlink control channels transmitted in CORESET # 1 are transmitted on beam # 1, and the downlink control channels transmitted in CORESET # 2 are transmitted on beam # 2. Assume that three search spaces ⁇ CSS # 3, USS # 4, USS # 5 ⁇ are configured on CORESET # 1, and two search spaces ⁇ CSS # 1, USS # 2 ⁇ are configured on CORESET # 2.
- the base station and the terminal determine how to send and receive the downlink control channel at the listening time according to the following rules:
- the terminal detects and receives the downlink control channel according to the beam direction (beam # 1) of the CORESET # 1 (the lowest number).
- the terminal detects and receives the downlink control channel according to beam # 1 in CORESET # 2; or, the terminal does not monitor (detect) the downlink control channel in CORESET # 2.
- the base station sends a downlink control channel according to the beam direction (beam # 1) of CORESET # 1.
- the base station sends the downlink control channel according to beam # 1 in CORESET # 2; or the base station does not send the downlink control channel in CORESET # 2.
- Some embodiments of the present disclosure provide a downlink control channel transmission method, as follows:
- the base station configures two CORESETs for the terminal (such as UE1), namely CORESET # 1 and CORESET # 2, and configures different beam directions, for example, CORESET # 1 corresponds to the beam direction beam # 1, and CORESET # 2 corresponds to the beam Direction beam # 2. That is, the downlink control channels transmitted in CORESET # 1 are transmitted on beam # 1, and the downlink control channels transmitted in CORESET # 2 are transmitted on beam # 2. Assume that three ⁇ USS # 3, USS # 4, USS # 5 ⁇ are configured on CORESET # 1, and two search spaces ⁇ CSS # 1, USS # 2 ⁇ are configured on CORESET # 2.
- the base station and the terminal follow the rules below Determine how to send and receive downlink control channels at this monitoring time (including monitoring time # 1 and monitoring time # 2):
- the terminal detects and receives the downlink control channel according to the beam direction (beam # 2) of the transmitted CORESET # 2 of CSS # 1.
- the terminal detects and receives the downlink control channel in CORESET # 1 according to beam # 2; or, the terminal does not monitor (detect) the downlink control channel in CORESET # 1.
- the base station sends a downlink control channel according to the beam direction (beam # 2) of CORESET # 2 where CSS # 1 is transmitted.
- the base station sends a downlink control channel according to beam # 2 in CORESET # 1; or the base station does not send a downlink control channel in CORESET # 1.
- Some embodiments of the present disclosure provide a downlink control channel transmission method, as follows:
- CORESET # 1 corresponds to the beam direction beam # 1
- CORESET # 2 corresponds to the beam direction.
- beam # 2 the downlink control channels transmitted in CORESET # 1 are transmitted on beam # 1
- the downlink control channels transmitted in CORESET # 2 are transmitted on beam # 2.
- three ⁇ CSS # 3, USS # 4, USS # 5 ⁇ are configured on CORESET # 1, and two search spaces ⁇ CSS # 1, USS # 2 ⁇ are configured on CORESET # 2.
- the network side and the terminal side determine how to send and receive the downlink control channel at the listening time (including monitoring time # 1 and monitoring time # 2) according to the following rules:
- the terminal detects and receives the downlink control channel according to the beam direction (beam # 1) of the CORESET # 1 (the lowest number).
- the terminal detects and receives the downlink control channel according to beam # 1 in CORESET # 2; or, the terminal does not monitor (detect) the downlink control channel in CORESET # 2.
- the base station sends a downlink control channel according to the beam direction (beam # 1) of CORESET # 1.
- the base station sends the downlink control channel according to beam # 1 in CORESET # 2; or the base station does not send the downlink control channel in CORESET # 2.
- Some embodiments of the present disclosure provide a downlink control channel transmission method, as follows:
- CORESET # 1 corresponds to the beam direction beam # 1
- CORESET # 2 corresponds to the beam direction.
- beam # 2 the downlink control channels transmitted in CORESET # 1 are transmitted on beam # 1
- the downlink control channels transmitted in CORESET # 2 are transmitted on beam # 2.
- three ⁇ CSS # 3, USS # 4, USS # 5 ⁇ are configured on CORESET # 1, and two search spaces ⁇ CSS # 1, USS # 2 ⁇ are configured on CORESET # 2.
- the network side and the terminal side determine how to send and receive the downlink control channel at the listening time (including monitoring time # 1 and monitoring time # 2) according to the following rules:
- the terminal detects and receives the downlink control channel according to the beam direction (beam # 1) of the CORESET # 1 (the lowest number).
- the terminal detects and receives the downlink control channel according to beam # 1 in CORESET # 2; or, the terminal does not monitor (detect) the downlink control channel in CORESET # 2.
- the base station sends a downlink control channel according to the beam direction (beam # 1) of CORESET # 1.
- the base station sends the downlink control channel according to beam # 1 in CORESET # 2; or the base station does not send the downlink control channel in CORESET # 2.
- FIG. 3 is a schematic structural diagram of a terminal provided by some embodiments of the present disclosure.
- the terminal 30 includes:
- a first target CORESET determination module 31 is configured to select from different CORESETs according to the types of conflicting search spaces when the listening times of the search spaces transmitted in different control resource sets CORESET configured with different beam directions conflict.
- the conflict at the monitoring time is the same monitoring time and the resources configured by the different CORESETs overlap, or the time interval of the monitoring time is less than a specified threshold;
- the detecting and receiving module 32 is configured to detect and receive a downlink control channel according to a beam direction of the target CORESET.
- a target is selected from the different CORESETs according to the type of the conflicting search space.
- CORESET and detects and receives a downlink control channel according to the beam direction of the target CORESET, the conflicts in the listening time are the same listening time and the resources configured by the different CORESETs overlap, or the time interval between the listening times is less than a specified threshold .
- the first target CORESET determination module 31 includes:
- a first determining unit is configured to determine to transmit a CORESET of the common search space as the target CORESET when only one of the conflicting search spaces is a common search space.
- the first target CORESET determination module 31 includes:
- a second determining unit configured to: when at least two of the conflicting search spaces are common search spaces, select a CORESET having the lowest number from the at least two CORESETs transmitting the common search space as the target CORESET .
- the first target CORESET determination module 31 includes:
- a third determining unit is configured to select a CORESET having the lowest number from the different CORESETs as the target CORESET when the conflicting search spaces are all dedicated search spaces.
- the detecting and receiving module 32 includes:
- a first detection and receiving unit configured to detect and receive a downlink control channel in the different CORESETs in accordance with a beam direction of the target CORESET;
- a second detection and receiving unit configured to detect and receive a downlink control channel only in the target CORESET according to a beam direction of the target CORESET, and not to detect downlink in other CORESETs other than the target CORESET among the different CORESETs Control channel.
- Some embodiments of the present disclosure are product embodiments corresponding to the method embodiment shown in FIG. 1 described above, and therefore are not described herein again. For details, refer to the embodiment shown in FIG. 1 described above.
- FIG. 4 is a schematic structural diagram of a network-side device according to some embodiments of the present disclosure.
- the network-side device 40 includes:
- a sending module 41 is configured to select a target CORESET from among the different CORESETs when a conflict occurs when different CORESETs configured with different beam directions need to transmit downlink control channels, And sending a downlink control channel according to the beam direction of the target CORESET, or sending downlink control channels according to the respective beam directions in the different CORESETs;
- the conflict in the timing of sending the downlink control channel is that the timing of sending the downlink control channel is the same and the resources of the different CORESET configurations overlap, or that the time interval for sending the downlink control channel is less than a specified threshold.
- a target CORESET is selected, and a downlink control channel is sent according to a beam direction of the target CORESET, or a downlink control channel is sent in each of the different CORESETs according to a respective beam direction.
- the conflicts in the timing of sending the downlink control channel may be that the timings of sending the downlink control channel are the same and the different CORESETs overlap in configured resources, or the time interval is less than a specified threshold.
- the sending module 41 includes:
- a fourth determining unit is configured to determine to transmit a CORESET of the public search space as the target CORESET when only one of the conflicting search spaces is a public search space.
- the sending module 41 includes:
- a fifth determining unit configured to: when at least two of the conflicting search spaces are common search spaces, select a CORESET having the lowest number from the at least two CORESETs transmitting the common search space as the target CORESET .
- the sending module 41 includes:
- a sixth determining unit is configured to select a CORESET having the lowest number from the different CORESETs as the target CORESET when the conflicting search spaces are all dedicated search spaces.
- the sending module 41 includes:
- a first sending unit configured to send a downlink control channel in the different CORESETs according to a beam direction of the target CORESET;
- the second sending unit is configured to send the downlink control channel only in the target CORESET according to its beam direction, and not to send the downlink control channel in the CORESET other than the target CORESET among the different CORESETs.
- Some embodiments of the present disclosure are product embodiments corresponding to the method embodiment shown in FIG. 2 described above, so they are not repeated here. For details, please refer to the embodiment shown in FIG. 2 described above.
- FIG. 5 is a schematic structural diagram of a terminal provided by some embodiments of the present disclosure.
- the terminal 50 includes a transceiver 51, a processor 52, a memory 53, and stored in the memory 53 and can be stored in the memory 53.
- a computer program running on the processor 52 wherein:
- the processor 52 is configured to select a target CORESET from the different CORESETs according to the type of the conflicting search space when the listening times of the search spaces transmitted in different control resource sets CORESET configured with different beam directions conflict.
- the conflict at the monitoring time is that the monitoring time is the same and the resources configured by the different CORESETs overlap, or that the time interval of the monitoring time is less than a specified threshold;
- the transceiver 51 is configured to detect and receive a downlink control channel according to a beam direction of the target CORESET.
- the transceiver 51 may be used to receive and send data under the control of the processor 52.
- the bus architecture may include any number of interconnected buses and bridges, and one or more processors specifically represented by the processor 52 and various circuits of the memory represented by the memory 53 are linked together.
- the bus architecture can also link various other circuits such as peripherals, voltage regulators, and power management circuits, which are well known in the art, so they are not described further herein.
- the bus interface provides an interface.
- the transceiver 51 may be a plurality of elements, including a transmitter and a receiver, providing a unit for communicating with various other devices on a transmission medium.
- the processor 52 is responsible for managing the bus architecture and general processing, and the memory 53 may store data used by the processor 52 when performing operations.
- the memory 53 is not limited to the terminal, and the memory 53 and the processor 52 may be separated and located in different geographical locations.
- the processor 52 is configured to determine to transmit a CORESET of the common search space as the target CORESET when only one of the conflicting search spaces is a common search space.
- the processor 52 is configured to select a CORESET having the lowest number from at least two CORESETs transmitting the common search space when at least two of the conflicting search spaces are common search spaces. As the target CORESET.
- the processor 52 is configured to select a CORESET having the lowest number from the different CORESETs as the target CORESET when the conflicting search spaces are all dedicated search spaces.
- the transceiver 51 is configured to detect and receive a downlink control channel in the different CORESETs in accordance with the beam direction of the target CORESET; or only in the target CORESET according to the target CORESET.
- the beam direction detects and receives the downlink control channel, and does not detect the downlink control channel in the CORESET other than the target CORESET among the different CORESETs.
- FIG. 6 is a schematic structural diagram of a network-side device according to some embodiments of the present disclosure.
- the network-side device 60 includes a transceiver 61, a processor 62, a memory 63, and stored in the memory 63.
- a computer program executable on the processor 62 wherein:
- the processor 62 is configured to select a target from the different CORESETs according to a type of a search space where conflicts occur in different CORESETs when different CORESETs configured with different beam directions need to transmit downlink control channels.
- CORESET; the transceiver 61 is configured to send a downlink control channel according to a beam direction of the target CORESET; or
- the transceiver 61 is configured to transmit downlink control channels according to respective beam directions in the different CORESETs when conflicts occur when different CORESETs configured with different beam directions need to transmit downlink control channels;
- the conflict in the timing of sending the downlink control channel may be that the timing of sending the downlink control channel is the same and the resources configured by the different CORESETs overlap, or that the time interval for sending the downlink control channel is less than a specified threshold.
- the transceiver 61 may be used to receive and send data under the control of the processor 62.
- the bus architecture may include any number of interconnected buses and bridges, and one or more processors specifically represented by the processor 62 and various circuits of the memory represented by the memory 63 are linked together.
- the bus architecture can also link various other circuits such as peripherals, voltage regulators, and power management circuits, which are well known in the art, so they are not described further herein.
- the bus interface provides an interface.
- the transceiver 61 may be a plurality of elements, including a transmitter and a receiver, providing a unit for communicating with various other devices on a transmission medium.
- the processor 62 is responsible for managing the bus architecture and general processing, and the memory 63 may store data used by the processor 900 when performing operations.
- the memory 63 is not limited to only the network-side device, and the memory 63 and the processor 62 may be separated and located in different geographical locations.
- the processor 62 is configured to, when only one of the conflicting search spaces is a common search space, determine to transmit a CORESET of the common search space as the target CORESET.
- the processor 62 is configured to select a CORESET having the lowest number from at least two CORESETs transmitting the common search space when at least two of the conflicting search spaces are common search spaces. As the target CORESET.
- the processor 62 is configured to select a CORESET having the lowest number from the different CORESETs as the target CORESET when the conflicting search spaces are all dedicated search spaces.
- the transceiver 61 is configured to send a downlink control channel according to a beam direction of the target CORESET in the different CORESETs; or send a downlink control channel according to a beam direction of the target CORESET only. , And do not send a downlink control channel in the CORESET other than the target CORESET among the different CORESETs.
- Some embodiments of the present disclosure provide a computer-readable storage medium having stored thereon a computer program that, when executed by a processor, implements steps in any one of the above-mentioned downlink control channel transmission methods.
- a processor executes instructions to implement steps in any one of the above-mentioned downlink control channel transmission methods.
- steps in any one of the above-mentioned downlink control channel transmission methods please refer to the description of the method steps in the corresponding embodiments above.
- the disclosed methods and devices may be implemented in other ways.
- the device embodiments described above are only schematic.
- the division of the modules and units is only a logical function division.
- the combination can either be integrated into another system, or some features can be ignored or not implemented.
- the displayed or discussed mutual coupling or direct coupling or communication connection may be indirect coupling or communication connection through some interfaces, devices or units, which may be electrical, mechanical or other forms.
- each functional unit in each embodiment of the present disclosure may be integrated into one processing unit, or each unit may be separately physically included, or two or more units may be integrated into one unit.
- the above integrated unit may be implemented in the form of hardware, or in the form of hardware plus software functional units.
- the above integrated unit implemented in the form of a software functional unit may be stored in a computer-readable storage medium.
- the above software functional unit is stored in a storage medium and includes several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute a part of a method for processing an information data block according to various embodiments of the present disclosure. step.
- the foregoing storage media include: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, etc. The medium.
- the embodiments described in the embodiments of the present disclosure may be implemented by hardware, software, firmware, middleware, microcode, or a combination thereof.
- the processing unit can be implemented in one or more application-specific integrated circuits (ASICs), digital signal processors (DSP), digital signal processing devices (DSPD), programmable Programmable Logic Device (PLD), Field-Programmable Gate Array (FPGA), general-purpose processor, controller, microcontroller, microprocessor, other for performing functions described in this disclosure Electronic unit or combination thereof.
- ASICs application-specific integrated circuits
- DSP digital signal processors
- DSPD digital signal processing devices
- PLD programmable Programmable Logic Device
- FPGA Field-Programmable Gate Array
- controller microcontroller
- microprocessor other for performing functions described in this disclosure Electronic unit or combination thereof.
- the technology described in the embodiments of the present disclosure may be implemented by modules (such as procedures, functions, and the like) that perform the functions described in the embodiments of the present disclosure.
- Software codes may be stored in a memory and executed by a processor.
- the memory may be implemented in the processor or external to the processor.
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Abstract
Description
Claims (31)
- 一种下行控制信道传输方法,应用于终端,包括:当配置了不同波束方向的不同控制资源集CORESET内传输的搜索空间的监听时刻发生冲突时,根据发生冲突的搜索空间的类型,从所述不同CORESET中选择目标CORESET,所述监听时刻发生冲突为监听时刻相同且所述不同CORESET配置的资源有重叠,或者,为监听时刻的时间间隔小于指定门限;以及按照所述目标CORESET的波束方向检测并接收下行控制信道。
- 根据权利要求1所述的下行控制信道传输方法,其中,所述根据发生冲突的搜索空间的类型,从所述不同CORESET中选择目标CORESET包括:当所述发生冲突的搜索空间中只有一个是公共搜索空间时,确定传输所述公共搜索空间的CORESET作为所述目标CORESET。
- 根据权利要求1所述的下行控制信道传输方法,其中,所述根据发生冲突的搜索空间的类型,从所述不同CORESET中选择目标CORESET包括:当所述发生冲突的搜索空间中有至少两个是公共搜索空间时,从传输所述公共搜索空间的至少两个CORESET中选择具有最低编号的CORESET作为所述目标CORESET。
- 根据权利要求1所述的下行控制信道传输方法,其中,所述根据发生冲突的搜索空间的类型,从所述不同CORESET中选择目标CORESET包括:当所述发生冲突的搜索空间均是专用搜索空间时,从所述不同CORESET中选择具有最低编号的CORESET作为所述目标CORESET。
- 根据权利要求1-4任一项所述的下行控制信道传输方法,其中,所述按照所述目标CORESET的波束方向检测并接收下行控制信道包括:在所述不同CORESET内,均按照所述目标CORESET的波束方向检测并接收下行控制信道;或者,只在所述目标CORESET内按照所述目标CORESET的波束方向检测并接收下行控制信道,且不在所述不同CORESET中的除所述目标CORESET以外的其他CORESET内检测下行控制信道。
- 一种下行控制信道传输方法,应用于网络侧设备,包括:当配置了不同波束方向的不同CORESET需要发送下行控制信道的时刻发生冲突时,所述发送下行控制信道的时刻发生冲突为发送下行控制信道的时刻相同且所述不同CORESET配置的资源有重叠,或者,为发送下行控制信道的时间间隔小于指定门限,根据所述不同CORESET内发生冲突的搜索空间的类型,从所述不同CORESET中选择目标CORESET,并按照所述目标CORESET的波束方向发送下行控制信道;或者,在所述不同CORESET内分别按照各自的波束方向发送下行控制信道。
- 根据权利要求6所述的下行控制信道传输方法,其中,所述根据所述不同CORESET内发生冲突的搜索空间的类型,从所述不同CORESET中选择目标CORESET包括:当所述发生冲突的搜索空间中只有一个是公共搜索空间时,确定传输所述公共搜索空间的CORESET作为所述目标CORESET。
- 根据权利要求6所述的下行控制信道传输方法,其中,所述根据所述不同CORESET内发生冲突的搜索空间的类型,从所述不同CORESET中选择目标CORESET包括:当所述发生冲突的搜索空间中有至少两个是公共搜索空间时,从传输所述公共搜索空间的至少两个CORESET中选择具有最低编号的CORESET作为所述目标CORESET。
- 根据权利要求6所述的下行控制信道传输方法,其中,所述根据所述不同CORESET内发生冲突的搜索空间的类型,从所述不同CORESET中选择目标CORESET包括:当所述发生冲突的搜索空间均是专用搜索空间时,从所述不同CORESET中选择具有最低编号的CORESET作为所述目标CORESET。
- 根据权利要求6-9中任一项所述的下行控制信道传输方法,其中,所述按照所述目标CORESET的波束方向发送下行控制信道包括:在所述不同CORESET内,均按照所述目标CORESET的波束方向发送下行控制信道;或者,只在所述目标CORESET内按照其波束方向发送下行控制信道,且不在所述不同CORESET中的除所述目标CORESET以外的其他CORESET内发送下行控制信道。
- 一种终端,包括:第一目标CORESET确定模块,用于当配置了不同波束方向的不同控制资源集CORESET内传输的搜索空间的监听时刻发生冲突时,根据发生冲突的搜索空间的类型,从所述不同CORESET中选择目标CORESET,所述监听时刻发生冲突为监听时刻相同且所述不同CORESET配置的资源有重叠,或者,为监听时刻的时间间隔小于指定门限;以及检测并接收模块,用于按照所述目标CORESET的波束方向检测并接收下行控制信道。
- 根据权利要求11所述的终端,其中,所述第一目标CORESET确定模块包括:第一确定单元,用于当所述发生冲突的搜索空间中只有一个是公共搜索空间时,确定传输所述公共搜索空间的CORESET作为所述目标CORESET。
- 根据权利要求11所述的终端,其中,所述第一目标CORESET确定模块包括:第二确定单元,用于当所述发生冲突的搜索空间中有至少两个是公共搜索空间时,从传输所述公共搜索空间的至少两个CORESET中 选择具有最低编号的CORESET作为所述目标CORESET。
- 根据权利要求11所述的终端,其中,所述第一目标CORESET确定模块包括:第三确定单元,用于当所述发生冲突的搜索空间均是专用搜索空间时,从所述不同CORESET中选择具有最低编号的CORESET作为所述目标CORESET。
- 根据权利要求11-14任一项所述的终端,其中,所述检测并接收模块包括:第一检测接收单元,用于在所述不同CORESET内,均按照所述目标CORESET的波束方向检测并接收下行控制信道;或者,第二检测接收单元,用于只在所述目标CORESET内按照所述目标CORESET的波束方向检测并接收下行控制信道,且不在所述不同CORESET中的除所述目标CORESET以外的其他CORESET内检测下行控制信道。
- 一种网络侧设备,包括:发送模块,用于当配置了不同波束方向的不同CORESET需要发送下行控制信道的时刻发生冲突时,根据所述不同CORESET内发生冲突的搜索空间的类型,从所述不同CORESET中选择目标CORESET,并按照所述目标CORESET的波束方向发送下行控制信道,或者,在所述不同CORESET内分别按照各自的波束方向发送下行控制信道;其中,所述发送下行控制信道的时刻发生冲突为发送下行控制信道的时刻相同且所述不同CORESET配置的资源有重叠,或者,为发送下行控制信道的时间间隔小于指定门限。
- 根据权利要求16所述的网络侧设备,其中,所述发送模块包括:第四确定单元,用于当所述发生冲突的搜索空间中只有一个是公共搜索空间时,确定传输所述公共搜索空间的CORESET作为所述目标CORESET。
- 根据权利要求16所述的网络侧设备,其中,所述发送模块包括:第五确定单元,用于当所述发生冲突的搜索空间中有至少两个是公共搜索空间时,从传输所述公共搜索空间的至少两个CORESET中选择具有最低编号的CORESET作为所述目标CORESET。
- 根据权利要求16所述的网络侧设备,其中,所述发送模块包括:第六确定单元,用于当所述发生冲突的搜索空间均是专用搜索空间时,从所述不同CORESET中选择具有最低编号的CORESET作为所述目标CORESET。
- 根据权利要求16-19中任一项所述的网络侧设备,其中,所述发送模块包括:第一发送单元,用于在所述不同CORESET内,均按照所述目标CORESET的波束方向发送下行控制信道;或者,第二发送单元,用于只在所述目标CORESET内按照其波束方向发送下行控制信道,且不在所述不同CORESET中的除所述目标CORESET以外的其他CORESET内发送下行控制信道。
- 一种终端,包括收发机、存储器、处理器及存储在所述存储器上并可在所述处理器上运行的计算机程序,其中,所述处理器,用于当配置了不同波束方向的不同控制资源集CORESET内传输的搜索空间的监听时刻发生冲突时,根据发生冲突的搜索空间的类型,从所述不同CORESET中选择目标CORESET,所述监听时刻发生冲突为监听时刻相同且所述不同CORESET配置的资源有重叠,或者,为监听时刻的时间间隔小于指定门限;以及所述收发机,用于按照所述目标CORESET的波束方向检测并接收下行控制信道。
- 根据权利要求21所述的终端,其中,所述处理器,用于当所述发生冲突的搜索空间中只有一个是公共搜索空间时,确定传输所述公共搜索空间的CORESET作为所述目标CORESET。
- 根据权利要求21所述的终端,其中,所述处理器,用于当所述发生冲突的搜索空间中有至少两个是公共搜索空间时,从传输所述公共搜索空间的至少两个CORESET中选择具有最低编号的CORESET作为所述目标CORESET。
- 根据权利要求21所述的终端,其中,所述处理器,用于当所述发生冲突的搜索空间均是专用搜索空间时,从所述不同CORESET中选择具有最低编号的CORESET作为所述目标CORESET。
- 根据权利要求21-24任一项所述的终端,其中,所述收发机,用于在所述不同CORESET内,均按照所述目标CORESET的波束方向检测并接收下行控制信道;或者,只在所述目标CORESET内按照所述目标CORESET的波束方向检测并接收下行控制信道,且不在所述不同CORESET中的除所述目标CORESET以外的其他CORESET内检测下行控制信道。
- 一种网络侧设备,包括收发机、存储器、处理器及存储在所述存储器上并可在所述处理器上运行的计算机程序,其中,所述处理器,用于当配置了不同波束方向的不同CORESET需要发送下行控制信道的时刻发生冲突时,根据所述不同CORESET内发生冲突的搜索空间的类型,从所述不同CORESET中选择目标CORESET;所述收发机,用于按照所述目标CORESET的波束方向发送下行控制信道;或者,所述收发机,用于当配置了不同波束方向的不同CORESET需要发送下行控制信道的时刻发生冲突时,在所述不同CORESET内分别按照各自的波束方向发送下行控制信道;其中,所述发送下行控制信道的时刻发生冲突为发送下行控制信道的时刻相同且所述不同CORESET配置的资源有重叠,或者,为发送下行控制信道的时间间隔小于指定门限。
- 根据权利要求26所述的网络侧设备,其中,所述处理器,用于当所述发生冲突的搜索空间中只有一个是公共搜索空间时,确定 传输所述公共搜索空间的CORESET作为所述目标CORESET。
- 根据权利要求26所述的网络侧设备,其中,所述处理器,用于当所述发生冲突的搜索空间中有至少两个是公共搜索空间时,从传输所述公共搜索空间的至少两个CORESET中选择具有最低编号的CORESET作为所述目标CORESET。
- 根据权利要求26所述的网络侧设备,其中,所述处理器,用于当所述发生冲突的搜索空间均是专用搜索空间时,从所述不同CORESET中选择具有最低编号的CORESET作为所述目标CORESET。
- 根据权利要求26-29中任一项所述的网络侧设备,其中,所述收发机,用于在所述不同CORESET内,均按照所述目标CORESET的波束方向发送下行控制信道;或者,只在所述目标CORESET内按照其波束方向发送下行控制信道,且不在所述不同CORESET中的除所述目标CORESET以外的其他CORESET内发送下行控制信道。
- 一种计算机可读存储介质,其上存储有计算机程序,其中,该计算机程序被处理器执行时实现如权利要求1至10中任一项所述的下行控制信道传输方法中的步骤。
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EP19864617.6A EP3860296B1 (en) | 2018-09-28 | 2019-09-16 | Method for transmitting downlink control channel, terminal and network side device |
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