CN108632840A - Configuration method, base station and the terminal device of Beam resources - Google Patents
Configuration method, base station and the terminal device of Beam resources Download PDFInfo
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- CN108632840A CN108632840A CN201710184868.5A CN201710184868A CN108632840A CN 108632840 A CN108632840 A CN 108632840A CN 201710184868 A CN201710184868 A CN 201710184868A CN 108632840 A CN108632840 A CN 108632840A
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- wave beam
- time slot
- terminal device
- base station
- control signaling
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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
- 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
- H04W72/0446—Resources in time domain, e.g. slots or frames
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/12—Wireless traffic scheduling
- H04W72/1263—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows
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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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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
This application provides a kind of configuration method of Beam resources, base station and terminal device, this method to include：Base station determines that the beam information of at least one wave beam used in the signal transmitted in a time slot, beam information include wave beam mark and time-domain position of the wave beam in the time slot；Base station sends descending control signaling in time slot, and descending control signaling includes the beam information of at least one wave beam.In the application, the beam information that base station is used by determining the signal transmitted in a time slot, the beam information includes the mark and time-domain position of at least one wave beam, and transmission includes the descending control signaling of the beam information, be capable of the time-domain resource of the dynamically corresponding wave beam of configurating terminal device, so as to promoted base station schedules terminals equipment Beam resources flexibility.Simultaneously, additionally it is possible to reduce the number of terminal device blind Detecting PDCCH.
Description
Technical field
This application involves the communications fields, and the configuration method more particularly, to Beam resources, base station and terminal are set
It is standby.
Background technology
(New Radio, NR) system of newly eating dishes without rice or wine can introduce higher carrier frequency.Due to high carrier frequency path loss compared with
Greatly, high carrier frequency signal is in the decline bigger of free space, the cell content of the base station with high carrier frequency in wireless access system
Easily there is covering cavity.It is required to meet covering, the base station in wireless access system needs to send in different times multiple
Directional beam ensures that multiple wave beam can cover entire sector.Terminal device in the sector can detect that base station is logical
The signal of wave beam transmission is crossed, as shown in Figure 1.
Since different wave beams interior in different times may be sent, in order to reduce the end being in different beams covering
End equipment receives the time delay of data in corresponding wave beam, introduces mini-slot (mini-slot) in NR system high-frequency section scenes, and one
May include multiple mini-slot in a time slot (slot), if the sending duration scheduling unit of each wave beam is mini-
Slot, it will reduce the time delay that the terminal device in different beams coverage area receives data in corresponding wave beam.
In general, base station can be the mini- that the corresponding wave beam of the semi-static instruction of each terminal device occupies by high-level signaling
The candidate time-domain position of slot, but which limit the flexibilities that Beam resources are dispatched in base station.
Invention content
The application provides a kind of configuration method of Beam resources, base station and terminal device, can promote base station schedules terminals
The flexibility of the Beam resources of equipment.
In a first aspect, a kind of configuration method of Beam resources is provided, the method includes：
Base station determines the beam information of at least one wave beam used in the signal transmitted in a time slot, the wave beam letter
Breath includes wave beam mark and time-domain position of the wave beam in the time slot；
The base station sends descending control signaling in the time slot, and the descending control signaling includes described at least one
The beam information of wave beam.
In the embodiment of the present invention, the beam information that base station is used by determining the signal transmitted in a time slot, the wave beam
Information includes the mark and time-domain position of at least one wave beam, and transmission includes the descending control signaling of the beam information, can
The dynamically time-domain resource of the corresponding wave beam of configurating terminal device, so as to promote the Beam resources of base station schedules terminals equipment
Flexibility.
Meanwhile UE is needed according to candidate's time-domain position blind Detecting Physical Downlink Control Channel in the prior art
(Physical Downlink Control Channel, PDCCH), blind examination number is more.In the embodiment of the present invention, terminal is set
The time-domain position of the standby wave beam that can be configured by descending control signaling according to base station detects the PDCCH sent by the wave beam,
So as to reduce the number of terminal device blind Detecting PDCCH.
It should be noted that the signal transmitted in a time slot can be data-signal and/or control signal.
In some possible realization methods, the base station sends descending control signaling in the time slot and includes：
The base station sends a descending control signaling in the time slot, the descending control signaling include it is described at least
The beam information of one wave beam.
Base station can be just that the multiple terminal devices in cell configure respectively simultaneously by a descending control signaling in this way
The running time-frequency resource of corresponding wave beam can reduce signaling overheads.
In some possible realization methods, at least one wave beam is multiple wave beams, and the base station is in the time slot
Interior transmission descending control signaling includes：
The base station sends each of multiple descending control signalings, the multiple descending control signaling in the time slot
Descending control signaling includes the beam information of a wave beam in the multiple wave beam, the multiple descending control signaling with it is described
Multiple wave beams correspond.
Base station can be different beam configuration running time-frequency resources by different descending control signalings in this way, to Beam resources
Configuration it is more flexible.
In some possible realization methods, the time slot includes at least one control channel, the multiple downlink control
Signaling bear is at least one control channel, and the control channel where each descending control signaling is according to corresponding
The wave beam mark scrambling of wave beam.In this way, terminal device would know that downlink in the control channel by demodulating the control channel
Whether control signaling indicates the time-domain resource of itself corresponding wave beam.
Optionally, which can be PDCCH.
In the prior art, in order to distinguish the PDCCH for corresponding to different beams, wave beam corresponds to searching for PDCCH
The PDCCH sent by the wave beam can be mapped in the resource in search space by rope space, base station, and terminal device is according to right
The wave beam the answered PDCCH that blind Detecting is sent by the wave beam in corresponding search space.In order to enable terminal device can be examined
The PDCCH sent by its corresponding wave beam is measured, base station needs entire search space partition to be multiple sub- search spaces, and
For the reserved corresponding sub- search space of each candidate beam, on the one hand, even if base station does not send some candidate beam, but still
The resource for needing to reserve its corresponding sub- search space for the candidate beam reduces so as to cause the utilization rate of resource；Another party
Face, due to needing that sub- search space is respectively configured for multiple candidate beams, this will cause empty for the son search of each beam configuration
Between capacity it is limited.And in the embodiment of the present invention, scrambling PDCCH is identified using wave beam, terminal device is according to corresponding wave beam mark
Knowledge demodulates PDCCH, without reserving the resource of search space for each candidate beam, can improve the utilization rate of resource；
On the other hand, the embodiment of the present invention is without dividing entire search space, but each wave beam shares entire search space,
So as to improve each wave beam search space capacity.
In some possible realization methods, the time slot includes multiple mini-slot, when each wave beam occupies described
The time-domain position of at least one mini-slot in gap, each wave beam is position of the mini-slot of each wave beam occupancy in the time slot
It sets.Here, the signal transmitted in the time slot can be data-signal and/or control signal.Optionally, the time domain of each wave beam
Position is the relative position in mini-slot region of the mini-slot of each wave beam occupancy in the time slot.Terminal device can be pre-
First know the distribution of the mini-slot region and the mini-slot in the mini-slot region.
In some possible realization methods, each wave beam occupies one or more OFDM symbols, the time domain of each wave beam
Position is position of the OFDM symbol of each wave beam occupancy in the time slot.Here, the signal transmitted in the time slot is control
Signal processed.Optionally, the time-domain position of each wave beam is OFDM symbol of the OFDM symbol of each wave beam occupancy in the time slot
Relative position in number location candidate set.Terminal device can know the OFDM symbol location candidate set in advance.
In some possible realization methods, the time-domain position for the wave beam that each descending control signaling includes is to pass through
Bitmap indicates.
In some possible realization methods, the beam information further includes the frequency domain resource information of wave beam.The wave beam
Frequency domain resource information can indicate wave beam occupy frequency domain resource position.
In some possible realization methods, the method further includes：
The base station determines the corresponding wave beam mark of each terminal device in cell at least one terminal device, described
Each terminal device is in the coverage area of the wave beam of corresponding wave beam mark instruction；
The base station sends a notification message, and notifies the corresponding wave beam mark of at least one terminal device.
The corresponding wave beam mark of terminal device in cell can be allocated to terminal device by base station in this way.
Second aspect provides a kind of configuration method of Beam resources, the method includes：
Terminal device receives the descending control signaling of base station transmission in a time slot, and the descending control signaling includes institute
The beam information of at least one wave beam used in the signal transmitted in time slot is stated, the beam information includes wave beam mark and wave
Time-domain position of the beam in the time slot；
The terminal device obtains the corresponding wave beam mark of the terminal device, and the terminal device is in corresponding wave beam
In the coverage area for identifying the wave beam of instruction；
The terminal device determines the end according to the beam information of corresponding wave beam mark and at least one wave beam
The time-domain position of the corresponding wave beam of end equipment.
In the embodiment of the present invention, by including that the signal transmitted in a time slot uses at least in descending control signaling
The beam information of one wave beam can dynamically be made by the signal transmitted in the terminal equipment configuration time slot in a time slot
The time-domain resource of wave beam, so as to promoted base station schedules terminals equipment Beam resources flexibility.Simultaneously, additionally it is possible to
Reduce the number of terminal device blind Detecting PDCCH.
In some possible realization methods, the terminal device receives the downlink control of base station transmission in a time slot
Signaling includes：
The terminal device receives the descending control signaling that the base station is sent, the downlink control in the time slot
Signaling processed includes the beam information of at least one wave beam.
Base station can be just that the multiple terminal devices in cell configure respectively simultaneously by a descending control signaling in this way
The running time-frequency resource of corresponding wave beam can reduce signaling overheads.
In some possible realization methods, at least one wave beam is multiple wave beams, and the terminal device is at one
The descending control signaling that base station is sent is received in time slot includes：
The terminal device receives multiple descending control signalings that the base station is sent in the time slot, under the multiple
Each descending control signaling in row control signaling includes the beam information of a wave beam in the multiple wave beam, the multiple
Descending control signaling is corresponded with the multiple wave beam.
Base station can be different beam configuration running time-frequency resources by different descending control signalings in this way, to Beam resources
Configuration it is more flexible.
In some possible realization methods, the time slot includes at least one control channel, the multiple downlink control
Signaling bear is at least one control channel, and the control channel where each descending control signaling is according to corresponding
The wave beam mark scrambling of wave beam.In this way, terminal device would know that downlink in the control channel by demodulating the control channel
Whether control signaling indicates the time-domain resource of itself corresponding wave beam.
In some possible realization methods, the time slot includes multiple mini-slot, when each wave beam occupies described
The time-domain position of at least one mini-slot in gap, each wave beam is position of the mini-slot of each wave beam occupancy in the time slot
It sets.Here, the signal transmitted in the time slot can be data-signal and/or control signal.Optionally, the time domain of each wave beam
Position is the relative position in mini-slot region of the mini-slot of each wave beam occupancy in the time slot.The mini-slot region
It is preconfigured.
In some possible realization methods, each wave beam occupies one or more OFDM symbols, the time domain of each wave beam
Position is position of the OFDM symbol of each wave beam occupancy in the time slot.Here, the signal transmitted in the time slot is control
Signal processed.Optionally, the time-domain position of each wave beam is OFDM symbol of the OFDM symbol of each wave beam occupancy in the time slot
Relative position in number location candidate set.The OFDM symbol location candidate set is preconfigured.
In some possible realization methods, the time-domain position for the wave beam that each descending control signaling includes is to pass through
Bitmap indicates.
In some possible realization methods, the beam information further includes the frequency domain resource information of wave beam.
In some possible realization methods, the terminal device obtains corresponding wave beam mark and includes：
The terminal device receives the notification message that the base station is sent, and the notification message includes the terminal device pair
The wave beam mark answered.
It should be noted that terminal device can also use other modes to obtain corresponding wave beam mark, the present invention is implemented
Example does not limit this.
The third aspect, provides a kind of base station, and the base station is any of the above-described for realizing first aspect or first aspect
Method described in the possible realization method of kind.
Specifically, the base station may include any possible realization side for executing first aspect or first aspect
The unit of method described in formula.
Fourth aspect, provides a kind of terminal device, and the terminal device is for realizing second aspect or second aspect
Method described in any of the above-described kind of possible realization method.
Specifically, the terminal device may include any possible reality for executing second aspect or second aspect
The unit of method described in existing mode.
5th aspect, provides a kind of base station, including processor, transmitter and memory, the processor, the transmission
Device and the memory are communicated by internal connecting path, and for storing instruction, the processor is used for the memory
Execute the instruction of memory storage, and the execution of the instruction to being stored in the memory makes the base station execute the
Method described in any possible realization method of one side or first aspect.
6th aspect, provides a kind of terminal device, including processor, receiver, memory and bus system, the place
Reason device, the receiver and the memory are communicated by internal connecting path, the memory for storing instruction, institute
Instruction of the processor for executing the memory storage is stated, and the execution of the instruction to being stored in the memory makes institute
State the method described in any possible realization method of terminal device execution second aspect or second aspect.
7th aspect, provides a kind of computer readable storage medium, which has program,
The program makes base station execute the method described in any possible realization method of above-mentioned first aspect or first aspect.
Eighth aspect provides a kind of computer readable storage medium, which has program,
The program makes terminal device execute the method described in any possible realization method of above-mentioned second aspect or second aspect.
Description of the drawings
Fig. 1 is the schematic diagram of the wave beam in cell；
Fig. 2 is the schematic flow chart of the configuration method of Beam resources according to the ... of the embodiment of the present invention；
Fig. 3 is the structural schematic diagram of mini-slot；
Fig. 4 is the schematic diagram of the time-domain position of wave beam used in the signal of transmission in 1 time slot；
Fig. 5 is another structural schematic diagram of mini-slot；
Fig. 6 is another schematic diagram of the time-domain position of wave beam used in the signal of transmission in 1 time slot；
Fig. 7 is the structural schematic diagram of base station according to the ... of the embodiment of the present invention；
Fig. 8 is the structural schematic diagram of base station according to another embodiment of the present invention；
Fig. 9 is the structural schematic diagram of terminal device according to the ... of the embodiment of the present invention；
Figure 10 is the structural schematic diagram of terminal device according to another embodiment of the present invention.
Specific implementation mode
Below in conjunction with attached drawing, the technical solution in the application is described.
It should be understood that in embodiments of the present invention, terminal device be also referred to as user equipment (User Equipment,
UE), mobile station (Mobile Station, MS), mobile terminal (Mobile Terminal) etc., which can be through wirelessly connecing
Networking (Radio Access Network, RAN) is communicated with one or more core nets, for example, terminal can be mobile
Phone (or being " honeycomb " phone), the computer etc. with communication function, for example, terminal device can also be portable, sleeve
Precious formula, hand-held, built-in computer or vehicle-mounted mobile device.
It should be understood that in embodiments of the present invention, term "and/or" is only a kind of incidence relation of description affiliated partner,
Indicate may exist three kinds of relationships.For example, A and/or B, can indicate：Individualism A, exists simultaneously A and B, individualism B this
Three kinds of situations.In addition, character "/" herein, it is a kind of relationship of "or" to typically represent forward-backward correlation object.
Fig. 2 is the schematic flow chart of the configuration method of Beam resources according to the ... of the embodiment of the present invention.Method packet shown in Fig. 2
Include following content.
210, base station determines the beam information of at least one wave beam used in the signal transmitted in a time slot, the wave beam
Information includes wave beam mark and time-domain position of the wave beam in the time slot.
The beam information of one wave beam includes the time-domain position of the wave beam mark and the wave beam of the wave beam in the time slot, more
The beam information of a wave beam includes the wave beam mark and time-domain position of multiple wave beam in the time slot of multiple wave beam.It is different
The mark of wave beam and time-domain position difference.
Base station can be that the terminal device in cell is pre-configured with or the corresponding wave beam of dynamic configuration identifies in advance
(Beam ID).It base station can also be according to the running time-frequency resource (such as PDSCH resources) scheduled in the terminal device in beam coverage
Size, configure the time-domain position of the wave beam, i.e. the occupied mini-slot of the wave beam (mini-slot) or orthogonal frequency division multiplexing
The position of (Orthogonal Frequency Division Multiplexing, OFDM) symbol；Alternatively, base station can be with root
According to the PDCCH resource in beam coverage to be scheduled in terminal device, the time-domain position of wave beam is configured.
220, base station sends descending control signaling in the time slot, which includes the wave of at least one wave beam
Beam information.Correspondingly, terminal device receives the descending control signaling.
230, terminal device obtains corresponding wave beam mark, and terminal device is in the covering of the wave beam of wave beam mark instruction
In range.It should be understood that the corresponding wave beam mark of multiple terminal devices in the coverage area in same wave beam is identical.
240, after terminal device receives the descending control signaling of base station transmission, according to corresponding wave beam mark and under
The beam information at least one wave beam that row control signaling includes, determines the time-domain position of corresponding wave beam.
After terminal device determines the time-domain position of corresponding wave beam, letter is received on the time-domain position in the time slot
Number, such as PDCCH signals, the number of blind Detecting PDCCH can be reduced in this way.
For example, the descending control signaling can be Downlink Control Information (Downlink Control Information,
DCI), but the embodiment of the present invention does not limit this.
In the embodiment of the present invention, by including that the signal transmitted in a time slot uses at least in descending control signaling
The beam information of one wave beam can dynamically be made by the signal transmitted in the terminal equipment configuration time slot in a time slot
The time-domain resource of wave beam, so as to promoted base station schedules terminals equipment Beam resources flexibility.Simultaneously, additionally it is possible to
Reduce the number of terminal device blind Detecting PDCCH.
As shown in figure 3, may include multiple mini-slot in a slot.It should be noted that a slot in Fig. 3
The duration of interior multiple mini-slot differs, but the embodiment of the present invention does not limit this, multiple in a slot
The duration of mini-slot in mini-slot can also be in an identical or slot multiple mini-slot in part
The duration of mini-slot can be identical.It should be noted that only can be for 7 OFDM with the time domain length of a slot in Fig. 3
For symbol lengths, the time domain length of a slot can also be 14 OFDM symbol length.In the example of Fig. 3, different the moon
Shadow shape illustrates different mini-slot.For example, diagonal line hatches illustrate mini-slot 1, it is 2 OFDM symbol length, grid
Shade illustrates mini-slot 2, is 1 OFDM symbol length, and dot-hatched illustrates mini-slot 3, is that 3 OFDM symbols are long
Degree.
In addition, each wave beam can occupy one or more mini-slot in the time domain, or each wave beam is in the time domain
One or more OFDM symbols can also be occupied.It is illustrated in figure 4 multiple wave beams used in the signal transmitted in a time slot
Time-domain position in the time slot.Base station can determine the wave beam according to the demand of the terminal device in the coverage area of wave beam
Time-domain position.In the example of Fig. 4, different shadow shapes illustrate the different time domain position of different wave beams.For example, oblique line is cloudy
The time-domain position that shadow signal wave beam 1 occupies in a slot, the time-domain position that grid shade signal wave beam 2 occupies in a slot, point
The time-domain position that shape shade signal wave beam 3 occupies in a slot.
In some embodiments, the frequency domain resource of each wave beam can be preconfigured or predefined.
In some embodiments, beam information can also include the frequency domain resource information of wave beam.Base station passes through transmission in this way
Downlink Control Information not only can be with the time-domain resource of dynamic configuration wave beam, can be with the frequency domain resource of dynamic configuration wave beam, Neng Goujin
One step promotes the flexibility of base station scheduling Beam resources.Terminal device is by demodulating descending control signaling, you can knows under physics
The frequency domain position of the shared channel (Physical Downlink Shared Channel, PDSCH) of row.
The frequency domain resource information of wave beam can indicate the position for the frequency domain resource that the wave beam occupies.Such as the frequency domain money of wave beam
Source information can indicate one section of continuous resource block (Resource Block, RB) on frequency domain.Specifically, the frequency domain of the wave beam
Resource may include the position of starting RB, and the quantity of continuous RB.
In some embodiments, before 220, method shown in Fig. 2 can also include：
Base station determines the corresponding wave beam mark of each terminal device in cell at least one terminal device, each terminal
Equipment is located in the coverage area of the wave beam of corresponding wave beam mark instruction；
Base station sends a notification message, and notifies the corresponding wave beam mark of at least one terminal device.
Correspondingly, terminal device obtains corresponding wave beam mark and includes in 230：Terminal device receives the notice that base station is sent
Message obtains corresponding wave beam according to the notification message and identifies.Base station can be by the corresponding wave of terminal device in cell in this way
Beam identification is allocated to terminal device.
Optionally, base station can be sent a notification message by way of broadcast, the notification message include in cell at least
The corresponding wave beam mark of one terminal device.Terminal device in cell can receive the notification message, such energy
Enough save the expense of base station.
Optionally, each terminal device that base station can also be into cell sends a notification message, and the terminal is notified to set respectively
The mark of standby corresponding wave beam.
It should be noted that terminal device can also use other modes to obtain corresponding wave beam mark, the present invention is real
Example is applied not limit this.For example, it is also possible to store corresponding wave beam mark in terminal device in advance, terminal device can be from
Corresponding wave beam mark is obtained in memory.
It should be understood that it is the terminal equipment configuration in cell that base station, which can send one or more descending control signalings, in 220
The beam information of wave beam used in the signal transmitted in one time slot.
In some embodiments, base station sends a descending control signaling in 220, which includes the time slot
The beam information of multiple wave beams used in the signal of interior transmission.Base station can be just small by a descending control signaling in this way
Multiple terminal devices in area configure the running time-frequency resource of corresponding wave beam simultaneously, can reduce signaling overheads.
For example, a public Physical Downlink Control Channel (common can be arranged in the public control area of slot
PDCCH), the DCI of the common PDCCH include the mark of multiple wave beams used in the signal that transmits in a slot and when
Domain position.That is, the common PDCCH may include wave beam identification information field, time-domain resource information field and frequency domain resource
Information field.Wherein, wave beam identification information carry multiple wave beams wave beam mark, time-domain resource information field carry multiple wave beams when
The instruction information of domain position, frequency domain resource information field carry the instruction information of the frequency domain position of multiple wave beams.
In further embodiments, base station sends multiple descending control signalings in 220, wherein each descending control signaling packet
Include the beam information of a wave beam.The running time-frequency resource of different beams is respectively configured using different descending control signalings.Terminal
After equipment receives a descending control signaling, if the wave beam that the descending control signaling includes identifies wave beam corresponding with itself
Mark is different, then terminal device can abandon the descending control signaling, until the wave beam that the descending control signaling received includes
Mark is identical as itself corresponding wave beam mark, and then terminal device can further get the time domain money of corresponding wave beam
Source and/or frequency domain resource.Optionally, a time slot includes at least one control channel, and multiple descending control signalings are carried on this
In at least one control channel, the control channel where each descending control signaling can be identified according to corresponding wave beam to be scrambled.
After terminal device receives descending control signaling, identified to the control channel where descending control signaling using corresponding wave beam
It is demodulated, if demodulating successfully, means the descending control signaling for configuring the corresponding Beam resources of the terminal device；If
Demodulate unsuccessful, then terminal device can abandon the control channel where the descending control signaling, continue to demodulate other downlink controls
Control channel where signaling processed.
In the prior art, in order to distinguish the PDCCH for corresponding to different beams, wave beam corresponds to searching for PDCCH
The PDCCH sent by the wave beam can be mapped in the resource in search space by rope space, base station, and terminal device is according to right
The wave beam the answered PDCCH that blind Detecting is sent by the wave beam in corresponding search space.In order to enable terminal device can be examined
The PDCCH sent by its corresponding wave beam is measured, base station needs entire search space partition to be multiple sub- search spaces, and
For the reserved corresponding sub- search space of each candidate beam, on the one hand, even if base station does not send some candidate beam, but still
The resource for needing to reserve its corresponding sub- search space for the candidate beam reduces so as to cause the utilization rate of resource；Another party
Face, due to needing that sub- search space is respectively configured for multiple candidate beams, this will cause empty for the son search of each beam configuration
Between capacity it is limited.And in the embodiment of the present invention, scrambling PDCCH is identified using wave beam, terminal device is according to corresponding wave beam mark
Knowledge demodulates PDCCH, without reserving the resource of search space for each candidate beam, can improve the utilization rate of resource；
On the other hand, the embodiment of the present invention is without dividing entire search space, but each wave beam shares entire search space,
So as to improve each wave beam search space capacity.
Optionally, the time-domain position of wave beam used in the signal transmitted in a slot can be what the wave beam occupied
The relative position in mini-slot regions of the mini-slot in the slot.It is alternatively possible to be disappeared by high-level signaling or system
Breath is semi-statically configured the maximum quantity of the wave beam of schedulable in a slot, then the quantity for the Beam ID that DCI includes be less than or
Equal to the maximum quantity, the areas mini-slot in a slot can also be semi-statically configured by high-level signaling or system message
Domain position and mini-slot structures.The mini- that can be semi-statically configured by high-level signaling or system message in a slot
The distribution of slot.In this way, the time-domain position of wave beam can only indicate what the wave beam in a slot occupied in descending control signaling
Mini-slot advantageously reduces the ratio special open of descending control signaling in this way in the relative position in the regions mini-slot of the slot
Pin.Fig. 5 show the distribution schematic diagram of the mini-slot in a slot.As shown in fig. 5, it is assumed that a slot includes 14
OFDM symbol, the 3rd OFDM symbol to the 14th OFDM symbol in the slot is the regions mini-slot, the areas mini-slot
Include 5 mini-slot in domain, the length of this 5 mini-slot is respectively 2,2,3,2,3 OFDM symbols.
Optionally, the time-domain position of the wave beam in descending control signaling can use bitmap (bitmap) to indicate.For example, 1
Mini-slot that multiple wave beams that the signal transmitted in slot uses respectively occupy due to wave beam 1 as shown in fig. 6, occupied
Mini-slot is located at the 1st and the 4th position in the regions mini-slot, therefore the time-domain position of wave beam 1 can use bitmap table
10010 are shown as, wherein " 1 " indicates the position for the mini-slot that wave beam 1 occupies.Similarly, the time-domain position of wave beam 2 can use position
Chart is shown as 01000, and the time-domain position of wave beam 3 can be expressed as 00101 with bitmap.
In the embodiment of the present invention, mini-slot in a slot is semi-statically configured by high-level signaling or system message
Distribution, then with bitmap indicate the signal transmitted in the slot used in wave beam occupy mini-slot relative position, have
Conducive to the overhead bit for the DCI for reducing common PDCCH.
Being semi-statically configured here refer to：When the validity of the distribution of mini-slot in one slot is maintained one section
Between after, reinform the distribution of the mini-slot in one slot of terminal device；Alternatively, notice terminal is set at a time interval
The distribution of mini-slot in a standby slot；Alternatively, notifying one, terminal device again in certain specified event triggerings
The distribution of mini-slot in slot.
It should be noted that in the embodiment of the present invention, base station can not also be semi-statically configured a slot to terminal device
The distribution of interior mini-slot, but directly indicate that the signal that transmits uses in a slot wave beam occupies to terminal device
Positions of the mini-slot in the slot.If still using bitmap to indicate the time-domain position of wave beam at this time, not due to terminal device
Know the distribution of the mini-slot in a slot, therefore the bitmap needs the time-domain position for indicating wave beam in entire slot
The position of the OFDM symbol of occupancy.Still by taking wave beam shown in Fig. 6 as an example, it is assumed that " 1 " indicates the mini- that wave beam 1 occupies in bitmap
The position of slot, since the mini-slot that wave beam 1 occupies is located at the 3rd, the 4th, the 10th and the 11st OFDM in slot
Symbol, therefore the time-domain position of wave beam 1 can be expressed as 00110000011000 with bitmap.Similarly, the time-domain position of wave beam 2 can
It is expressed as 00001100000000 with bitmap, the time-domain position of wave beam 3 can be expressed as 00000011100111 with bitmap.
In some embodiments, the time-domain position of each wave beam is position of the OFDM symbol of each wave beam occupancy in time slot
It sets.Optionally, position of the OFDM symbol that wave beam occupies in time slot can also be indicated with bitmap.For example, it is assumed that in bitmap " 1 "
The position for the OFDM that wave beam occupies is indicated, if a wave beam occupies the 1st, the 5th and the 12nd OFDM in a slot
Symbol, then the time-domain position of the wave beam can be expressed as 10001000000100 with bitmap.
Optionally, it can also be semi-statically configured by high-level signaling or system message in a time slot and be possibly used for transmission wave
The location candidate set of the OFDM symbol of beam, in this way, the time-domain position in descending control signaling can be indicated only in a slot
Relative position of the OFMD symbols in the location candidate set that occupies of wave beam, advantageously reduce descending control signaling in this way
Overhead bit.For example, it is assumed that " 1 " indicates positions of the OFDM of wave beam occupancy in location candidate set in bitmap, it is used for transmission
The location candidate set of the OFDM symbol of wave beam is { the 1st, the 3rd, the 5th, the 6th, the 12nd }, if a wave beam accounts for
With the 1st, the 5th and the 12nd OFDM symbol in a slot, then the time-domain position of the wave beam can be expressed as with bitmap
10101.Being semi-statically configured here is similar with being semi-statically configured of being mentioned above, and details are not described herein.
Described above is the configuration methods of Beam resources according to the ... of the embodiment of the present invention, are retouched below in conjunction with Fig. 7 to Figure 10
State base station according to the ... of the embodiment of the present invention and terminal device.
Fig. 7 is the structural schematic diagram of base station 700 according to the ... of the embodiment of the present invention.As shown in fig. 7, base station 700 may include
Processing unit 710 and transmission unit 720.
Processing unit 710 is used to determine the wave beam letter of at least one wave beam used in the signal transmitted in a time slot
Breath, beam information include wave beam mark and time-domain position of the wave beam in the time slot；Transmission unit 720 in time slot for sending
Descending control signaling, descending control signaling include the beam information at least one wave beam that processing unit 710 determines.
The base station of the embodiment of the present invention is used by the signal transmitted in one time slot of carrying in descending control signaling
The beam information of at least one wave beam can be dynamically the signal transmitted in the terminal equipment configuration time slot in a time slot
The time-domain resource of used wave beam, so as to promoted base station schedules terminals equipment Beam resources flexibility.Meanwhile also
The number of terminal device blind Detecting PDCCH can be reduced.
Optionally, transmission unit 720 is specifically used for, and a descending control signaling, descending control signaling are sent in time slot
Include the beam information of at least one wave beam.
Optionally, at least one wave beam is multiple wave beams, and transmission unit 720 is specifically used for, sent in time slot it is multiple under
Row control signaling, each descending control signaling in multiple descending control signalings include the wave beam of a wave beam in multiple wave beams
Information, multiple descending control signalings are corresponded with multiple wave beams.
Optionally, processing unit 710 is additionally operable to, and determines each terminal device pair at least one terminal device in cell
The wave beam mark answered, each terminal device are in the coverage area of the wave beam of corresponding wave beam mark instruction；Transmission unit 720
It is additionally operable to, notifies the corresponding wave beam mark of at least one terminal device.
It should be understood that base station 700 according to the ... of the embodiment of the present invention can correspond to Beam resources according to the ... of the embodiment of the present invention
Base station in configuration method, and above and other operation and/or function of each unit in base station 700 is respectively in order to realize
The corresponding flow of method shown in Fig. 2, for sake of simplicity, details are not described herein.
Fig. 8 show the structural schematic diagram of base station 800 according to another embodiment of the present invention.As shown in figure 8, base station 800
Including processor 810, transmitter 820 and memory 830, processor 810, transmitter 820 and memory 830 are connected by inside
Access communicates, and transmits control signal and/or data-signal.For storing instruction, which uses the memory 830
In the instruction for executing the memory 830 storage.Transmitter 820 is used to issue the number of delivering letters in the control of processor 810.
Specifically, transmitter 820 for realizing the transmission unit 720 in base station 700 shown in Fig. 7 function.Processor
810 for realizing the processing unit 710 in base station 700 shown in Fig. 7 function, be succinct, details are not described herein.
It should be understood that base station 800 according to the ... of the embodiment of the present invention can correspond to Beam resources according to the ... of the embodiment of the present invention
Base station in configuration method and base station according to the ... of the embodiment of the present invention 700, and each unit in base station 800 above-mentioned and its
Its operation and/or function is respectively in order to realize that method shown in Fig. 2 obtains corresponding flow, for sake of simplicity, details are not described herein.
Fig. 9 is the structural schematic diagram of terminal device 900 according to the ... of the embodiment of the present invention.As shown in figure 9, terminal device 900
Including receiving unit 910 and processing unit 920.
The descending control signaling that receiving unit 910 is sent for receiving base station in a time slot, descending control signaling packet
The beam information of at least one wave beam used in the signal transmitted in time slot is included, beam information includes that wave beam mark and wave beam exist
Time-domain position in the time slot；For obtaining the corresponding wave beam mark of terminal device, terminal device is in be corresponded to processing unit 920
Wave beam mark instruction wave beam coverage area in；Processing unit 920 is additionally operable to, and is identified and is received according to corresponding wave beam and is single
The beam information of at least one of the descending control signaling that member 910 receives wave beam, determines the corresponding wave beam of terminal device
Time-domain position.
The terminal device of the embodiment of the present invention can be transmitted from being obtained in a time slot in the descending control signaling received
The beam information of at least one wave beam that uses of signal so that base station can be dynamically in one time slot of terminal equipment configuration
The time-domain resource of wave beam used in the signal of transmission, so as to promoted base station schedules terminals equipment Beam resources it is flexible
Property.Simultaneously, additionally it is possible to reduce the number of terminal device blind Detecting PDCCH.
Optionally, receiving unit 910 is specifically used for, and the descending control signaling that base station is sent is received in time slot, under
Row control signaling includes the beam information of at least one wave beam.
Optionally, at least one wave beam is multiple wave beams, and receiving unit 910 is specifically used for, and base station hair is received in time slot
The multiple descending control signalings sent, each descending control signaling in multiple descending control signalings include one in multiple wave beams
The beam information of wave beam, multiple descending control signalings are corresponded with multiple wave beams.
Optionally, receiving unit 910 is additionally operable to, and receives the notification message that base station is sent, notification message includes terminal device
Corresponding wave beam mark；Processing unit 920 is additionally operable to, and corresponding wave is obtained from the notification message that receiving unit 910 receives
Beam identification.
It should be understood that terminal device 900 according to the ... of the embodiment of the present invention can correspond to wave beam money according to the ... of the embodiment of the present invention
Terminal device in the configuration method in source, and above and other operation and/or function of each unit in terminal device 900
Respectively in order to realize the corresponding flow of method shown in Fig. 2, for sake of simplicity, details are not described herein.
Figure 10 show the structural schematic diagram of terminal device 1000 according to another embodiment of the present invention.As shown in Figure 10,
Terminal device 1000 includes processor 1010, receiver 1020 and memory 1030, processor 1010, receiver 1020 and storage
Device 1030 is communicated by internal connecting path, transmits control signal and/or data-signal.The memory 1030 is for storing
Instruction, the processor 1010 are used to execute the instruction of the memory 830 storage.Receiver 1020 is used for the control in processor 1010
System is lower to receive signal.
Specifically, receiver 1020 for realizing the receiving unit 910 in terminal device 900 shown in Fig. 9 function.Place
Device 1010 is managed for realizing the function of the processing unit 920 in terminal device 900 shown in Fig. 9, is succinct, no longer goes to live in the household of one's in-laws on getting married herein
It states.
It should be understood that terminal device 1000 according to the ... of the embodiment of the present invention can correspond to wave beam money according to the ... of the embodiment of the present invention
Terminal device in the configuration method in source and terminal device according to the ... of the embodiment of the present invention 900, and in terminal device 1000
Above and other operation and/or function of each unit respectively in order to realize that method shown in Fig. 2 obtains corresponding flow, for sake of simplicity,
Details are not described herein.
Those of ordinary skill in the art may realize that lists described in conjunction with the examples disclosed in the embodiments of the present disclosure
Member and algorithm steps can be realized with the combination of electronic hardware or computer software and electronic hardware.These functions are actually
It is implemented in hardware or software, depends on the specific application and design constraint of technical solution.Professional technician
Each specific application can be used different methods to achieve the described function, but this realization is it is not considered that exceed
Scope of the present application.
It is apparent to those skilled in the art that for convenience and simplicity of description, the system of foregoing description,
The specific work process of device and unit, can refer to corresponding processes in the foregoing method embodiment, and details are not described herein.
In several embodiments provided herein, it should be understood that disclosed systems, devices and methods, it can be with
It realizes by another way.For example, the apparatus embodiments described above are merely exemplary, for example, the unit
It divides, only a kind of division of logic function, formula that in actual implementation, there may be another division manner, such as multiple units or component
It can be combined or can be integrated into another system, or some features can be ignored or not executed.Another point, it is shown or
The mutual coupling, direct-coupling or communication connection discussed can be the indirect coupling by some interfaces, device or unit
It closes or communicates to connect, can be electrical, machinery or other forms.
The unit illustrated as separating component may or may not be physically separated, aobvious as unit
The component shown may or may not be physical unit, you can be located at a place, or may be distributed over multiple
In network element.Some or all of unit therein can be selected according to the actual needs to realize the mesh of this embodiment scheme
's.
In addition, each functional unit in each embodiment of the present invention can be integrated in a processing unit, it can also
It is that each unit physically exists alone, it can also be during two or more units be integrated in one unit.
It, can be with if the function is realized in the form of SFU software functional unit and when sold or used as an independent product
It is stored in a computer read/write memory medium.Based on this understanding, the technical solution sheet of each embodiment of the present invention
The part of the part that contributes to existing technology or the technical solution can body in the form of software products in other words in matter
Reveal and, which is stored in a storage medium, including some instructions are with so that a computer is set
Standby (can be personal computer, server or the network equipment etc.) executes the whole of each embodiment the method for the present invention
Or part steps.And storage medium above-mentioned includes：USB flash disk, mobile hard disk, read-only memory (Read-Only Memory,
ROM), random access memory (Random Access Memory, RAM), magnetic disc or CD etc. are various can store program
The medium of code.
The above, the only specific implementation mode of the application, but the protection domain of the application is not limited thereto, it is any
Those familiar with the art can easily think of the change or the replacement in the technical scope that the application discloses, and should all contain
It covers within the protection domain of the application.Therefore, the protection domain of the application shall be subject to the protection scope of the claim.
Claims (36)
1. a kind of configuration method of Beam resources, which is characterized in that including：
Base station determines the beam information of at least one wave beam used in the signal transmitted in a time slot, the beam information packet
Include wave beam mark and time-domain position of the wave beam in the time slot；
The base station sends descending control signaling in the time slot, and the descending control signaling includes at least one wave beam
Beam information.
2. according to the method described in claim 1, it is characterized in that, the base station sends descending control signaling in the time slot
Including：
The base station sends a descending control signaling in the time slot, and the descending control signaling includes described at least one
The beam information of wave beam.
3. according to the method described in claim 1, it is characterized in that, at least one wave beam be multiple wave beams, the base station
Descending control signaling is sent in the time slot includes：
The base station sends multiple descending control signalings in the time slot, each downlink in the multiple descending control signaling
Control signaling includes the beam information of a wave beam in the multiple wave beam, the multiple descending control signaling with it is the multiple
Wave beam corresponds.
4. described more according to the method described in claim 3, it is characterized in that, the time slot includes at least one control channel
A descending control signaling is carried at least one control channel, the control channel where each descending control signaling
It is identified and is scrambled according to the wave beam of corresponding wave beam.
5. method according to claim 1 to 4, which is characterized in that the time slot includes multiple mini-slot, often
A wave beam occupies at least one mini-slot in the time slot, and the time-domain position of each wave beam is the mini-slot that each wave beam occupies
Position in the time slot.
6. method according to claim 1 to 4, which is characterized in that each wave beam occupies in the time slot
At least one orthogonal frequency division multiplex OFDM symbol, the time-domain position of each wave beam are the OFDM symbol that occupies of each wave beam described
Position in time slot.
7. method according to claim 5 or 6, which is characterized in that the wave beam that each descending control signaling includes
Time-domain position is indicated by bitmap.
8. method according to any one of claim 1 to 7, which is characterized in that the beam information further includes wave beam
Frequency domain resource information.
9. method according to any one of claim 1 to 8, which is characterized in that further include：
The base station determines the corresponding wave beam mark of each terminal device in cell at least one terminal device, described each
Terminal device is in the coverage area of the wave beam of corresponding wave beam mark instruction；
The base station sends a notification message, and notifies the corresponding wave beam mark of at least one terminal device.
10. a kind of configuration method of Beam resources, which is characterized in that including：
Terminal device receives the descending control signaling of base station transmission in a time slot, when the descending control signaling includes described
The beam information of at least one wave beam used in the signal transmitted in gap, the beam information include that wave beam mark and wave beam exist
Time-domain position in the time slot；
The terminal device obtains the corresponding wave beam mark of the terminal device, and the terminal device is in corresponding wave beam mark
In the coverage area of the wave beam of instruction；
The terminal device determines that the terminal is set according to the beam information of corresponding wave beam mark and at least one wave beam
The time-domain position of standby corresponding wave beam.
11. according to the method described in claim 10, it is characterized in that, the terminal device receives base station hair in a time slot
The descending control signaling sent includes：
The terminal device receives the descending control signaling that the base station is sent, the downlink control letter in the time slot
Order includes the beam information of at least one wave beam.
12. according to the method described in claim 10, it is characterized in that, at least one wave beam be multiple wave beams, the end
End equipment receives the descending control signaling that base station is sent in a time slot：
The terminal device receives multiple descending control signalings that the base station is sent, the multiple downlink control in the time slot
Each descending control signaling in signaling processed includes the beam information of a wave beam in the multiple wave beam, the multiple downlink
Control signaling is corresponded with the multiple wave beam.
13. according to the method for claim 13, which is characterized in that the time slot includes at least one control channel, described
Multiple descending control signalings are carried at least one control channel, the control letter where each descending control signaling
Road is identified according to the wave beam of corresponding wave beam and is scrambled.
14. the method according to any one of claim 10 to 13, which is characterized in that when the time slot includes multiple micro-
Gap, each wave beam occupy at least one mini-slot in the time slot, and the time-domain position of each wave beam is what each wave beam occupied
Position of the mini-slot in the time slot.
15. the method according to any one of claim 10 to 13, which is characterized in that each wave beam occupies in the time slot
At least one orthogonal frequency division multiplex OFDM symbol, the OFDM symbol that the time-domain position of each wave beam occupies for each wave beam is in institute
State the position in time slot.
16. the method according to claims 14 or 15, which is characterized in that the wave beam that each descending control signaling includes
Time-domain position indicated by bitmap.
17. the method according to any one of claim 10 to 16, which is characterized in that the beam information further includes wave beam
Frequency domain resource information.
18. the method according to any one of claim 10 to 17, which is characterized in that the terminal device obtains corresponding
Wave beam identifies：
The terminal device receives the notification message that the base station is sent, and the notification message includes that the terminal device is corresponding
Wave beam identifies.
19. a kind of base station, which is characterized in that including：
Processing unit, the beam information for determining at least one wave beam used in the signal transmitted in a time slot are described
Beam information includes wave beam mark and time-domain position of the wave beam in the time slot；
Transmission unit, for sending descending control signaling in the time slot, the descending control signaling includes that the processing is single
The beam information at least one wave beam that member determines.
20. base station methods according to claim 19, which is characterized in that
The transmission unit is specifically used for, and a descending control signaling, the descending control signaling packet are sent in the time slot
Include the beam information of at least one wave beam.
21. base station according to claim 19, which is characterized in that at least one wave beam is multiple wave beams,
The transmission unit is specifically used for, and multiple descending control signalings, the multiple downlink control letter are sent in the time slot
Each descending control signaling in order includes the beam information of a wave beam in the multiple wave beam, the multiple downlink control
Signaling is corresponded with the multiple wave beam.
22. base station according to claim 21, which is characterized in that the time slot includes at least one control channel, described
Multiple descending control signalings are carried at least one control channel, the control letter where each descending control signaling
Road is identified according to the wave beam of corresponding wave beam and is scrambled.
23. the base station according to any one of claim 19 to 22, which is characterized in that when the time slot includes multiple micro-
Gap, each wave beam occupy at least one mini-slot in the time slot, and the time-domain position of each wave beam is what each wave beam occupied
Position of the mini-slot in the time slot.
24. the base station according to any one of claim 19 to 22, which is characterized in that each wave beam occupies in the time slot
At least one orthogonal frequency division multiplex OFDM symbol, the OFDM symbol that the time-domain position of each wave beam occupies for each wave beam is in institute
State the position in time slot.
25. the base station according to claim 23 or 24, which is characterized in that the wave beam that each descending control signaling includes
Time-domain position indicated by bitmap.
26. the base station according to any one of claim 19 to 25, which is characterized in that the beam information further includes wave beam
Frequency domain resource information.
27. the base station according to any one of claim 19 to 26, which is characterized in that
The processing unit is additionally operable to, and determines the corresponding wave beam mark of each terminal device in cell at least one terminal device
Know, each terminal device is in the coverage area of the wave beam of corresponding wave beam mark instruction；
The transmission unit is additionally operable to, and notifies the corresponding wave beam mark of at least one terminal device.
28. a kind of terminal device, which is characterized in that including：
Receiving unit, the descending control signaling sent for receiving base station in a time slot, the descending control signaling include
The beam information of at least one wave beam used in the signal transmitted in the time slot, the beam information include wave beam mark and
Time-domain position of the wave beam in the time slot；
Processing unit, for obtaining the corresponding wave beam mark of the terminal device, the terminal device is in corresponding wave beam mark
In the coverage area for knowing the wave beam of instruction；
The processing unit is additionally operable to, and the downlink received according to corresponding wave beam mark and the receiving unit controls letter
The beam information of at least one wave beam in order, determines the time-domain position of the corresponding wave beam of the terminal device.
29. terminal device according to claim 28, which is characterized in that
The receiving unit is specifically used for, and the descending control signaling that the base station is sent is received in the time slot, described
Descending control signaling includes the beam information of at least one wave beam.
30. terminal device according to claim 28, which is characterized in that at least one wave beam is multiple wave beams, institute
It states receiving unit to be specifically used for, multiple descending control signalings that the base station is sent is received in the time slot, under the multiple
Each descending control signaling in row control signaling includes the beam information of a wave beam in the multiple wave beam, the multiple
Descending control signaling is corresponded with the multiple wave beam.
31. terminal device according to claim 30, which is characterized in that the time slot includes at least one control channel,
The multiple descending control signaling is carried at least one control channel, the control where each descending control signaling
Channel processed is identified according to the wave beam of corresponding wave beam and is scrambled.
32. the terminal device according to any one of claim 28 to 31, which is characterized in that the time slot includes multiple micro-
Time slot, each wave beam occupy at least one mini-slot in the time slot, and the time-domain position of each wave beam occupies for each wave beam
Position of the mini-slot in the time slot.
33. the terminal device according to any one of claim 28 to 31, which is characterized in that when each wave beam occupies described
At least one orthogonal frequency division multiplex OFDM symbol in gap, the time-domain position of each wave beam are the OFDM symbol that each wave beam occupies
Position in the time slot.
34. the terminal device according to claim 32 or 33, which is characterized in that each descending control signaling includes
The time-domain position of wave beam is indicated by bitmap.
35. the terminal device according to any one of claim 28 to 34, which is characterized in that the beam information further includes
The frequency domain resource information of wave beam.
36. the terminal device according to any one of claim 28 to 34, which is characterized in that
The receiving unit is additionally operable to, and receives the notification message that the base station is sent, the notification message includes that the terminal is set
Standby corresponding wave beam identifies；
The processing unit is additionally operable to, and corresponding wave beam mark is obtained in the notification message received from the receiving unit
Know.
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| CN111757475A (en) * | 2019-03-28 | 2020-10-09 | 华为技术有限公司 | Method and communication device for updating beam |
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