CN106937388A - Method and apparatus for configuring subframe - Google Patents
Method and apparatus for configuring subframe Download PDFInfo
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- CN106937388A CN106937388A CN201511027984.3A CN201511027984A CN106937388A CN 106937388 A CN106937388 A CN 106937388A CN 201511027984 A CN201511027984 A CN 201511027984A CN 106937388 A CN106937388 A CN 106937388A
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- subframe
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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
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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
Abstract
Embodiment of the disclosure provides a kind of method and apparatus for configuring subframe.In one embodiment of the disclosure, the method includes：By sub-frame configuration into the subframe that can act as uplink and the subframe of downlink transfer；And using at least one of descending control domain, downlink data domain, upload control domain and upstream data domain, subframe is configured.The unified subframe structure proposed by embodiment of the disclosure, the method for configuring subframe structure can simplify the expense of original frame configuration and signaling.Additionally, the dynamic sub-frame configuration based on instantaneous traffic adaptation can also provide more preferable flexibility.
Description
Technical field
Embodiment of the disclosure is related to the communication technology, more particularly to a kind of side for configuring subframe
Method and device.
Background technology
5G physical layers are devoted to providing high performance data transfer rate and the cost and power of reduction disappear
Consumption [1].As described in document [2], the substantial amounts of MIMO of cell, high frequency band and intensive
Arrangement will be the high performance requirements for meeting 5G major technique.Additionally, the system expandability,
The flexibility of uplink and downlink ability and the optimization of non-paired frequency spectrum is kept to use for 5G
Concept is also very important.Additionally, except traditional user equipment-base station (UE-eNB)
Outside access, increasing various new links start what is communicated between appearance, such as eNB
The link of the device-to-device from backhaul link and without infrastructure.
This requirement based on 5G, it is contemplated that the inexpensive high efficiency of tdd mode and its
Vast non-paired frequency spectrum, tdd mode can be utilized to be had great for following 5G schemes
Advantage.The use of tdd mode is also allowed using the channel reciprocity between uplink and downlink, to subtract
Small feedback spending.This is also advantageous that for the MIMO technology for needing substantial amounts of channel condition information
's.
However, in the current LTE/LTE-Advanced systems of Release 8 to Release 12
In system, although at the same support fdd mode and tdd mode, but fdd mode compared to
Tdd mode is main dual-mode.Tdd mode is greatly coordinated towards fdd mode,
And the degree for being exclusively used in the optimization of TDD has been minimized.Specifically, subframe structure
Design is optimized for FDD, rather than TDD.When using the optimization for being traditionally used for FDD
Subframe structure when, in tdd mode, any behaviour that shakes hands between UE and eNB
The time for making (such as primary data scheduling, the two-way time (RRT) of HARQ procedure) is long
Degree will extend, and be highly dependent upon uplink/downlink ratio.Therefore, this can not realize future
The RRT of 5G technologies is the requirement of 1ms.
The content of the invention
For technical problem present in prior art, embodiment of the disclosure is matched somebody with somebody there is provided one kind
The method for putting the subframe for TDD, to ensure the requirement of 5G.
According to the first aspect of the disclosure, it is proposed that a kind of side for configuring subframe in a base station
Method, including：By the sub-frame configuration into the subframe and downlink transfer that can act as uplink
Subframe；And using descending control domain, downlink data domain, upload control domain and upstream data
At least one of domain, configures to the subframe.
According to one embodiment of the disclosure, using descending control domain, downlink data domain, up
Control domain and at least one of upstream data domain, carrying out configuration to the subframe includes：Institute
Configurating downlink domain and the first up domain in subframe are stated, wherein the descending domain includes the descending control
Domain processed and at least one of the downlink data domain, and the first up domain include it is described on
Row control domain and at least one of the upstream data domain；And in the descending domain and described
A protection interval is configured between one up domain.
Here, configuring a protection interval, Ye Ji between the downlink and uplink conversion of subframe
A protection interval is configured between descending domain and up domain.In this embodiment, descending domain can be with
Including descending control domain and downlink data domain at least one.
According to one embodiment of the disclosure, using descending control domain, downlink data domain, up
Control domain and at least one of upstream data domain, carrying out configuration to the subframe includes：Institute
The end for stating subframe configures the upload control domain.The collocating uplink in subframe in this embodiment
The position of control domain is defined.
In an alternative embodiment of the disclosure, using descending control domain, downlink data domain,
Upload control domain and at least one of upstream data domain, carrying out configuration to the subframe includes：
The second up domain is configured in the subframe, wherein the second up domain includes the up control
Domain processed and the upstream data domain；And wherein match somebody with somebody at the edge of the bandwidth in the described second up domain
The upload control domain is put, and the remainder of the bandwidth in the described second up domain configures institute
State upstream data domain.Upload control domain and upstream data domain are included to up domain in this embodiment
In the case of both, one kind is defined to the collocating uplink control domain in subframe and upstream data domain
Implementation method.
According to one embodiment of the disclosure, using descending control domain, downlink data domain, up
Control domain and at least one of upstream data domain, carrying out configuration to the subframe includes：Institute
State configurating downlink domain in subframe, wherein the descending domain include the descending control domain and it is described under
At least one of row data field；And methods described also includes：Selected from the descending domain many
Individual resource element, for transmission downlink demodulation reference signal, wherein selected multiple resources
Element is continuous in the descending domain.Here, one can be selected for example in descending domain
OFDM symbol, and by all resource elements related to the OFDM (i.e. in whole band
Resource element on width) for transmitting downlink demodulation reference signal.
Alternatively, using descending control domain, downlink data domain, upload control domain and upper line number
According at least one of domain, carrying out configuration to the subframe includes：The configurating downlink in the subframe
Domain, wherein the descending domain includes at least the one of the descending control domain and the downlink data domain
It is individual；And methods described also includes：Multiple resource elements are selected from the descending domain, with
For transmitting downlink demodulation reference signal, wherein in selected multiple resource elements at least one
Part is discrete in the descending domain.Here, these resource elements can be as needed
It is dispersed in descending domain.
According to one embodiment of the disclosure, when the descending domain include the descending control domain and
During the downlink data domain, methods described also includes：The descending control domain is descending with described
Data field is configured to share the downlink demodulation reference signal.So as to further save resources
Expense.
According to one embodiment of the disclosure, using descending control domain, downlink data domain, up
Control domain and at least one of upstream data domain, carrying out configuration to the subframe includes：Institute
The first up domain of configuration in subframe is stated, wherein the first up domain includes the upload control domain
With at least one of the upstream data domain；And methods described also includes：From described first
Multiple resource elements are selected in row domain, for transmission uplink demodulation reference signal, wherein selected
The multiple resource elements selected are continuous in the described first up domain.Here, can for example exist
An OFDM symbol is selected in up domain, and by all resources related to the OFDM
Element (resource element i.e. over the whole width) is used to transmit uplink demodulation reference signal.
Alternatively, using descending control domain, downlink data domain, upload control domain and upper line number
According at least one of domain, carrying out configuration to the subframe includes：First is configured in the subframe
Up domain, wherein the first up domain includes the upload control domain and the upstream data domain
At least one；And methods described also includes：Multiple moneys are selected from the described first up domain
Source element, for transmission uplink demodulation reference signal, wherein selected multiple resource elements
In at least a portion be discrete in the described first up domain.Here, these resource elements
Element can be dispersed in up domain as needed.
According to one embodiment of the disclosure, when the described first up domain includes the upload control
When domain and the upstream data domain, methods described also includes：By the upload control domain with it is described
Upstream data configuration of territory is to share the uplink demodulation reference signal.So as to further saving
Resource overhead.
According to one embodiment of the disclosure, methods described also includes selecting many from the subframe
Individual resource element, for scheduling detection reference signal, wherein selected multiple resource elements
It is continuous in the subframe.Here, can for example by with the end of the subframe
The related all resource elements of OFDM symbol are configured for dispatching detection reference signal.Substitute
Ground, it is also possible to multiple resource elements are selected from the subframe, for scheduling detection with reference to letter
Number, wherein at least a portion in selected multiple resource elements is non-company in the subframe
Continuous.Here, these resource elements can be dispersed in subframe as needed.
According to one embodiment of the disclosure, methods described is also included based on the business for needing transmission
Type and/or data volume configure the length of subframe and/or the form/type of subframe pattern.
According to one embodiment of the disclosure, methods described also includes configuration subframe pattern, wherein
The subframe pattern is made up of at least one sub-frame configuration, and each sub-frame configuration is respectively suitable for one
Individual subframe, and the sub-frame configuration indicate domain that the length of the subframe, the subframe includes,
And the length in each domain that includes of the subframe or the relative length in each domain.
In this embodiment, by abovementioned steps to the result of sub-frame configuration, it is corresponding to be adapted to
The form of sub-frame configuration of subframe reflect.Also, will at least one subframe configuration group into
Subframe pattern.Therefore, the subframe pattern will reflect at least one of a period of time subframe
Configuration result.
According to one embodiment of the disclosure, methods described also includes：Sent to user equipment and controlled
Signaling processed, it indicates the subframe pattern, the effective time of the subframe pattern and the subframe
The mark of the sub-frame configuration in pattern.
According to one embodiment of the disclosure, methods described also includes：When needing to update the son
When frame pattern and/or sub-frame configuration, another control signaling is sent to the user equipment, its instruction
Updated subframe pattern, the effective time of the updated subframe pattern and described it is updated over
Subframe pattern in sub-frame configuration mark.
According to one embodiment of the disclosure, the control signaling and/or another control signaling
Including physical layer signaling and high-level signaling.
According to one embodiment of the disclosure, based on predetermined condition, to the subframe pattern and/
Or sub-frame configuration is configured.
According to one embodiment of the disclosure, the predetermined condition include it is following at least one
：Desired uplink/downlink ratio；The amount of current uplink service and downlink business；And need
The type of the message of transmission.
According to the second aspect of the disclosure, it is proposed that a kind of dress for configuring subframe in a base station
Put, described device includes：First dispensing unit, for by the sub-frame configuration into can act as
The subframe of uplink and the subframe of downlink transfer；And second dispensing unit, under utilization
At least one of row control domain, downlink data domain, upload control domain and upstream data domain,
The subframe is configured.
By embodiment of the disclosure, it is new to be that uplink and downlink transfer are uniformly proposed
Subframe structure, without repartitioning sub-frame of uplink and descending sub frame.
In one embodiment of the disclosure, in a subframe, the subframe structure can include
Any one of descending control domain, downlink data domain, upload control domain and upstream data domain.Cause
This, uplink/downlink ratio is adapted to without adjusting the frame structure of radio frames, and it is possible thereby to save
Go the extra signaling of some other frame structure based on radio frames.For example, in the disclosure will
Will not relate to constitute radio frames this set with multiple sub-frame of uplink, descending sub frame and special subframe
Mode.
Therefore, unified subframe structure, the configuration subframe knot for being proposed by embodiment of the disclosure
The method of structure can simplify the expense of original frame configuration and signaling.Additionally, being based on instantaneous industry
The dynamic sub-frame configuration of adaptation of being engaged in can also provide more preferable flexibility.
Various aspects of the disclosure will be more clear by the explanation of embodiment in detail below
It is clear.
Brief description of the drawings
Retouched with reference to the detailed of being made to non-limiting example of being made of the following drawings by reading
State, the other features, objects and advantages of embodiment of the disclosure will become more apparent：
Fig. 1 show the one embodiment according to the disclosure for configuring subframe in a base station
Method flow diagram；
Fig. 2 shows the structural representation of the subframe of the one embodiment according to the disclosure；
Fig. 3 shows the structural representation of the subframe of another embodiment according to the disclosure；
Fig. 4 shows the structural representation of the subframe according to another embodiment of the disclosure；With
And
Fig. 5 show the one embodiment according to the disclosure for configuring subframe in a base station
The schematic diagram of device.
In figure, through different diagrams, same or similar reference represents identical or phase
Corresponding part or feature.
Specific embodiment
For uplink and downlink propose a kind of being suitable to for unification in one embodiment of the disclosure
The subframe structure of TDD, to meet the requirement of 5G concepts.According to one embodiment of the disclosure,
Based on sub-frame configuration, each subframe include it is following in one or more：Descending control domain, under
Row data field, upload control domain and upstream data domain.Additionally, there is provided various sub-frame configurations,
Its subframe for corresponding to the length with different domains and/or domain respectively, so that subframe/subframe
Configuration can be adapted to for example different uplink/downlink ratios.This adaptation mode, compared to existing
Realize that desired uplink/downlink ratio will be cleverer in technology by distinguishing uplink/downlink subframe
It is living.
Optionally, in addition sub-frame configuration and its effective time can also be indicated by signaling, and
/ or the subframe pattern that is made up of at least one sub-frame configuration and its effective time.Therefore, it can root
Subframe pattern/the configuration in the effect time is dynamically configured with according to such as service needed.This subframe
The advantage of structure is at least that no longer need the configuration in frame-layer face, and will simplify frame configuration and phase
The signaling of pass.It is further possible to more effectively be adapted to (instantaneous based on instantaneous traffic
Traffic adaptation) realize dynamic sub-frame configuration.
Fig. 1 show the one embodiment according to the disclosure for configuring subframe in a base station
Method flow diagram.It is different that Fig. 2 to Fig. 4 then respectively illustrates in accordance with an embodiment of the present disclosure
The structural representation of subframe.Come in detail below in reference to method flow Fig. 1 and Fig. 2 to Fig. 4
Illustrate the disclosure.
As shown in figure 1, in step S101, by sub-frame configuration into can act as uplink
Subframe and downlink transfer subframe.Herein a subframe is defined to can act as up biography
Defeated subframe and the subframe of downlink transfer.And no longer as being in the prior art defined to only subframe
The subframe that can act as uplink or the subframe that can be only used to downlink transfer.
Then, in step s 102, using descending control domain, downlink data domain, up control
Domain processed and at least one of upstream data domain, configures to subframe.
Specifically, in embodiment of the disclosure, subframe can include it is following in one
Or it is multinomial：Descending control domain, downlink data domain, upload control domain and upstream data domain.Wherein,
Descending control domain is used to transmit various Downlink Control Information, and downlink data domain is used to transmit lower line number
According to upload control domain is used to transmit various ascending control informations, and upstream data domain is used to transmit
Row data.
Specifically, for example in can be by determining whether to be configured in a subframe aforementioned four domain
One or more, and if configuration, it is determined that the relative length in each domain, come advantageously
Uplink/downlink ratio is very sensitively adjusted.Then, by regulation after a subframe in
Configuration result presented in the form of sub-frame configuration (be discussed further below).And thus, it is possible to
It is determined that the various sub-frame configurations with different descending/up ratios.
For example in millimeter-wave communication system, due to the number of the OFDM symbol in a subframe
Amount is much larger than the quantity of the OFDM symbol in LTE/LTE-A, therefore based on up-lower industry
Descending/up ratio for being engaged in changing in a sub- frame in will become more sensitive/more effective.
Specifically, can for example configure only there is descending control domain and downlink data domain subframe,
Only with the subframe in downlink data domain, the subframe with upload control domain and upstream data domain, with
And only there is the subframe in upstream data domain.It is in fact possible to according to predetermined condition/needs come in real time
Any combination in configuration aforementioned four domain.And each different types of sub-frame configuration will be including above-mentioned
Any combination in these domains.
For example if it is desired to uplink/downlink ratio increase, then will set upload control domain and/or on
Row data field, cancels descending control domain and/or downlink data domain.Up control can also for example be increased
Domain processed and/or the length in upstream data domain, reduce the length in descending control domain and/or downlink data domain
Degree.And it is more to work as uplink service, when downlink business is relatively fewer, it is also possible to carry out above-mentioned similar
Operation.
Additionally, in one embodiment of the disclosure, for some specific occasions, can be only
Support the sub-frame configuration with descending control domain or upload control domain.Or, can assume that for
Subframe with various domains, such as the sub-frame configuration with descending control domain and downlink data domain,
Or the sub-frame configuration with upload control domain and upstream data domain, data field be all it is idle, no
Use.
According to some embodiments of the present disclosure, the selection in the domain in sub-frame configuration/mono- subframe and its
He matches in the design of system, or is also the type of the message for adapting to needs transmission
's.
Principle of the invention, in order to ensure for a new UE's or asynchronous UE
Master sync signal (Primary Synchronization Signal, PSS) and auxiliary synchronous signals
The correct transmission of (Secondary Synchronization Signal, SSS), should be at each
Subframe of the configuration with descending domain in lock in time section.The descending domain includes descending control domain with
At least one of row data field.Additionally, for Physical Broadcast Channel (PBCH), it is also desirable to full
Sufficient above-mentioned requirements.
Additionally, to the transmission of Physical Random Access Channel (PRACH).In order to meet it
Correct transmission, should periodically configure the subframe with up domain is used for provide
The distribution of the running time-frequency resource of PRACH.Here, up domain includes upload control domain and upper line number
According at least one of domain.
And for beep-page message, then the subframe with descending domain should be configured come in ensureing time domain
Paging cycle and paging subframe.
Alternatively, in one embodiment of the disclosure, a cycle for subframe also can be to match somebody with somebody
Put, to meet the delay requirement of different business.For example, the cycle of subframe is configurable to
0.2ms, 0.5ms or 1ms etc..This can also be matched somebody with somebody by various different sub-frame configurations
Put.Without as being all in the prior art to be defined as fixed length.Therefore in the reality of the disclosure
In applying example, not the radio frames concept with regular time length, such as LTE/LTE-A
In 10ms.
Optionally, in addition, come downwards between up transition period inserts a protection in subframe
Every to compensate the transmission delay of the downlink transfer to different UE.Namely it is supreme in descending domain
A protection interval is inserted between row domain.In view of in this embodiment, up domain includes upper
Row control domain and at least one of upstream data domain, and descending domain includes descending control domain and descending
At least one of data field.It may be thus possible, for example, to following situations occur：Upload control domain with
Configuration protection interval between descending control domain, configures between upload control domain and downlink data domain
Protection interval, the configuration protection interval between upstream data domain and descending control domain, in upper line number
It is spaced according to configuration protection between domain and downlink data domain.
Due to can be by similar to the time preposition process in LTE/LTE-Advanced systems
Uplink to compensate to different UE postpones, therefore during down conversion is gone upward to,
Protection interval need not be inserted.
Alternatively, in embodiment of the disclosure, a sub-frame configuration or subframe can also be configured
The effective time of pattern.One subframe pattern is made up of at least one sub-frame configuration.Therefore, one
Individual subframe pattern can indicate the sub-frame configuration of at least one continuous subframe.It is effective by setting
Time, further such that the scheme of embodiment of the disclosure no longer has regular time length
10ms in frame concept, such as LTE/LTE-A.
Thus, the subframe energy of the foundation embodiment of the disclosure with different descending/descending ratios
Instantaneous traffic change is enough provided, therefore does not need frame structure.Further, can be without frame-layer
The control information in face.Such as support eIMIA in LTE/LTE-A.Thus for service adaptation more
There is provided flexibility.
In the optional embodiment of the disclosure, the content of sub-frame configuration can include：Subframe is long
Degree；Included domain in the subframe, such as descending control domain, downlink data domain, upload control domain
With upstream data domain；And ratio and/or the length in each domain between the different domain in the subframe
Degree.Thus, can determine how a subframe configures by sub-frame configuration.And it is one
Individual sub-frame configuration also distributes corresponding mark.
For subframe pattern, for example：Simplest pattern can be：In the effective of subframe pattern
A kind of sub-frame configuration is repeated in time.Alternatively, one can be given within an effective time
Pattern with various sub-frame configurations.
Alternatively, subframe pattern can be for example defined by the form of subframe bit map, or
Correspondingly pre-configured different subframe pattern identification.
After above-mentioned all configurations have been carried out, according to an optional embodiment of the disclosure,
Method in Fig. 1 also includes sending a control signaling to UE.The control signaling indicates subframe
The mark of the sub-frame configuration in pattern, the effective time of subframe pattern and subframe pattern.As above institute
State, subframe pattern can be indicated by way of the mark of subframe bit map and/or subframe pattern
Case.In the case where subframe pattern only includes a sub-frame configuration, the effective time of subframe pattern
Namely effective time of sub-frame configuration.
And ought such as uplink/downlink ratio need change, or uplink/downlink sub-carriers change
When, when needing to update again subframe pattern/sub-frame configuration so as to cause, then base station will update corresponding
Subframe pattern/sub-frame configuration, and send another control signaling.Certainly, foregoing effective
After time expires, base station can also send another control signaling to indicate new subframe pattern
/ sub-frame configuration.
According to one embodiment of the disclosure, above-mentioned each control signaling can be by with physical layer
Signalling format is configured.This can provide and rapidly configure.Minimum setup time section can be with
It is a subframe.Such as Downlink Control Information can be placed on the descending control area in a subframe
In.For effective time more than a situation of TTI, sub-frame configuration/subframe pattern can be put
In first Downlink Control Information of subframe of time period.Thus, the Downlink Control Information is also
The scheduling of many subframes can be carried out, for example, the sub-frame configuration of book frame is not only indicated, after also indicating that
The sub-frame configuration of continuous multiple subframe.
Alternatively, foregoing each control signaling can be configured by high-level signaling form.
This for example goes for the scene of slower business change.
In another embodiment of the disclosure, foregoing each control signaling can be by physical layer
The mode that signaling is combined with high-level signaling is transmitted.For example, by using high-level signaling by son
The corresponding relation and/or subframe of the mark (or subframe bit map) of frame pattern and subframe pattern
Configuration is sent to UE with the corresponding relation of the mark of sub-frame configuration.And believed by using physical layer
The mark of sub-frame configuration and/or the mark of subframe pattern that order will be currently configured are sent to UE.By
This, UE determines to be suitable to each height by above-mentioned physical layer signaling is combined with the combination of high-level signaling
Subframe pattern/the sub-frame configuration of frame.In this embodiment, believed with high-rise by physical layer signaling
The combination of order avoids excessive burden on a kind of signaling format.
UE will determine one or more in effective time after control signaling is received
How subframe configures, and then with base station carries out uplink/downlink transmission.
Further, after UE receives another control signaling for indicating to update,
How one or more subframes for determining to update are configured, and is correspondingly carried out with base station
Uplink/downlink is transmitted.
It is specifically described below in reference to Fig. 2 to 4.In Fig. 2 to 4, a subframe quilt
It is configured to descending control domain, downlink data domain, upload control domain and upstream data domain, and
And descending domain includes descending control domain, downlink data domain, up domain includes upload control domain and upper
Row data field.
Here, Fig. 2 and 3 shows two kinds of embodiments of basic subframe structure.In Fig. 2 and
Respectively be configured with 3 descending control domain, downlink data domain, upload control domain, upstream data domain with
And protection interval.
Position configuration for upload control domain/PUCCH, in embodiment of the disclosure, carries
Two schemes are gone out:
A) scheme 1：Upload control domain is located at the end in subframe.As shown in Figure 2.The program
It is particularly well-suited to：Upstream data is less or only exists upload control in a up domain for subframe
The situation in domain.
B) scheme 2：In the edge collocating uplink control domain of the bandwidth in up domain, bandwidth its
Upstream data domain is put in remaining part distribution, as shown in Figure 3.In this scenario, following spies can be provided
Property：
I. can support to carry out frequency hopping at the edge of time slot, so as to provide frequency diversity.
Ii. the resource in upload control domain is distributed at the edge of bandwidth by being combined with frequency hopping can
Think that for example control signaling provides maximized frequency diversity.Thereby, it is possible to avoid frequency from selecting
Selecting property declines, and enhances the robustness of communication.
Iii. the edge of the resource allocation in upload control domain to bandwidth uplink spectrum is not interfered with into.
Therefore, this can be implemented as single UE and distributes the transmission spectrum of non-constant width, and therefore keep
To low papr (PAPR) characteristic of UE transmission.
Scheme 1 and scheme 2 can be based on the quantity of upstream data and control signaling mutually to assist
Make.When needing to dispatch substantial amounts of UE data, scheme 2 will be optional.Thereby, it is possible to
Neatly determine resource allocation by the data of the PUCCH at band edge.And work as up
When data are less or PUCCH is only that ascending control information is dispatched, upload control domain/PUCCH
Distribution can follow scheme 1, to save the consumption of upper control signaling.
According to the optional embodiment of the disclosure, during being configured to subframe, may be used also
With to various reference signals, position configures in subframe.
How it is in subframe to various reference signals hereafter by with the subframe structure based on Fig. 2
What is configured illustrates.Certainly, above-mentioned example is only schematical, those skilled in the art
Member is it should be understood that the concrete configuration hereafter to for example various reference signals is readily adaptable for use in remaining
Type subframe is configured, the subframe structure of such as Fig. 3.
As shown in figure 4, according to one embodiment of the disclosure, uplink demodulation reference signal
(uplink demodulation reference signal, UL DMRS) and downstream modulation are with reference to letter
Number (downlink demodulation reference signal, DL DMRS) can alternatively divide
It is not inserted between upload control domain and upstream data domain, and in descending control domain and lower line number
According between domain.
By above-mentioned setting, UL DMRS and DL DMRS can be shared, for it is descending/
The demodulation of upload control and data signaling；So that the channel estimation of control channel and data channel is more
Plus it is accurate；And save the load of reference signal.
Specifically, the configuration of the particular location for UL/DL DMRS, the one of the disclosure
In individual embodiment, UL/DL DMRS can be distributed in following positions：In whole bandwidth
On discrete resource element in OFDM symbol.Namely the resource element that UL DMRS take
Element at least partly discontinuous can be dispersed in up domain.And the resource that DL DMRS take
Element at least partly discontinuous can also be dispersed in descending domain.
Alternatively, UL/DL DMRS are it can also be provided that take continuous resource element, namely
Bar shaped as shown in Figure 4.The whole OFDM that these resource elements are located at whole bandwidth is accorded with
On number.Namely in up domain, select all resources related to one or more OFDM
Element, and use it for UL DMRS transmission.And in descending domain, select and one or many
Individual OFDM related all resource elements, and use it for DL DMRS transmission.
It will be understood by those of skill in the art that for other kinds of sub-frame configuration, such as one
Individual subframe only includes upload control domain or the only situation including upstream data domain, it is also possible to UL
DMRS carries out above-mentioned continuous or discrete configuration.Similarly, in a subframe for example only
Including descending control domain or only including downlink data domain, it is also possible to DL DMRS are carried out above-mentioned
Continuous or discrete configuration.
Additionally, as shown in Figure 4, further it is shown that detection reference signal (sounding reference
Signal, SRS) in the position of subframe.
Alternatively, detection reference signal is dispatched in the end of subframe and over the whole width
(sounding reference signal, SRS).Now, the resource element occupied by SRS is
Continuously (as shown in Figure 4).Alternatively, it is also possible to equally using discrete mode,
Multiple resource elements are selected i.e. from subframe, for scheduling detection reference signal, wherein selected
At least a portion in the multiple resource elements selected is discrete in subframe.Namely at some
SRS is dispatched on subband.
By above-mentioned setting so that base station can estimate the uplink channel status on different frequency.
Then, the scheduler of base station for example can distribute Resource Block using the estimation of these channel status,
To improve the instantaneous mass of up PUSCH transmission.
Additionally, in the case of being also configured with various reference signals in subframe, foregoing subframe
Configuration will also include the information of position of the various reference signals in subframe, and by foregoing
Various control signalings are sent to UE from base station.Also, UE also will obtain son according to control signaling
The configuration of frame, so as to carry out corresponding uplink/downlink communication with base station.
Fig. 5 show the one embodiment according to the disclosure for configuring subframe in a base station
The schematic diagram of device.The device 50 includes：First dispensing unit 501, for by the subframe
It is configured to be used as the subframe of uplink and the subframe of downlink transfer；And second configuration it is single
Unit, for using descending control domain, downlink data domain, upload control domain and upstream data domain
At least one of, configuration 502 is carried out to the subframe.
It should be noted that above-described embodiment is only exemplary, rather than limitation of this disclosure.
Any technical scheme without departing substantially from disclosure spirit all should be fallen within the protection domain of the disclosure,
This includes that, using the different technologies feature for occurring in different embodiments, installation method can be carried out
Combination, to obtain beneficial effect.Additionally, any reference in claim should not be regarded
Claim involved by limitation；" including " word is not excluded for other claims or explanation
Exempt from device or the step listed in book.
Bibliography
[1]P.Mogensen et al.,“5G small cell optimized radio design”,in the proc.Globecom
2013,International workshop on emerging techniques for LTE-Advanced and Beyond
4G。
[2]P.Mogensen et al.,“B4G local area:high level requirements and system design”,in
the proc.Globecom 2012,International workshop on emerging techniques for
LTE-Advanced and Beyond 4G。
Claims (20)
1. a kind of method for configuring subframe in a base station, including：
By the sub-frame configuration into the subframe that can act as uplink and the subframe of downlink transfer；
And
Using descending control domain, downlink data domain, upload control domain and upstream data domain extremely
It is few one, the subframe is configured.
2. method according to claim 1, wherein using descending control domain, downlink data
At least one of domain, upload control domain and upstream data domain, configuration bag is carried out to the subframe
Include：
Configurating downlink domain and the first up domain in the subframe, wherein the descending domain includes institute
State at least one of descending control domain and the downlink data domain, and the first up domain bag
Include at least one of the upload control domain and the upstream data domain；And
A protection interval is configured between the descending domain and the first up domain.
3. method according to claim 1, wherein using descending control domain, downlink data
At least one of domain, upload control domain and upstream data domain, configuration bag is carried out to the subframe
Include：
The upload control domain is configured in the end of the subframe.
4. method according to claim 1, wherein using descending control domain, downlink data
At least one of domain, upload control domain and upstream data domain, configuration bag is carried out to the subframe
Include：
The second up domain is configured in the subframe, wherein the second up domain is included on described
Row control domain and the upstream data domain；And
The upload control domain wherein is configured at the edge of the bandwidth in the described second up domain, and
The upstream data domain is configured in the remainder of the bandwidth in the described second up domain.
5. method according to claim 1, wherein using descending control domain, downlink data
At least one of domain, upload control domain and upstream data domain, configuration bag is carried out to the subframe
Include：
The configurating downlink domain in the subframe, wherein the descending domain includes the descending control domain
With at least one of the downlink data domain；And
Methods described also includes：
Multiple resource elements are selected from the descending domain, for transmission downstream modulation ginseng
Signal is examined, wherein selected multiple resource elements are continuous in the descending domain.
6. method according to claim 1, wherein using descending control domain, downlink data
At least one of domain, upload control domain and upstream data domain, configuration bag is carried out to the subframe
Include：
The configurating downlink domain in the subframe, wherein the descending domain includes the descending control domain
With at least one of the downlink data domain；And
Methods described also includes：
Multiple resource elements are selected from the descending domain, for transmission downstream modulation ginseng
Signal is examined, wherein at least a portion in selected multiple resource elements is in the descending domain
It is discrete.
7. the method according to claim 5 or 6, wherein when the descending domain include it is described
When descending control domain and the downlink data domain, methods described also includes：
It is to share the downstream modulation by the descending control domain and the downlink data configuration of territory
Reference signal.
8. method according to claim 1, wherein using descending control domain, downlink data
At least one of domain, upload control domain and upstream data domain, configuration bag is carried out to the subframe
Include：
The first up domain is configured in the subframe, wherein the first up domain is included on described
Row control domain and at least one of the upstream data domain；And
Methods described also includes：
Multiple resource elements are selected from the described first up domain, for transmitting up solution
Reference signal is adjusted, wherein selected multiple resource elements are continuous in the described first up domain
's.
9. method according to claim 1, wherein using descending control domain, downlink data
At least one of domain, upload control domain and upstream data domain, configuration bag is carried out to the subframe
Include：
The first up domain is configured in the subframe, wherein the first up domain is included on described
Row control domain and at least one of the upstream data domain；And
Methods described also includes：
Multiple resource elements are selected from the described first up domain, for transmitting up solution
Reference signal is adjusted, wherein at least a portion in selected multiple resource elements is described first
It is discrete in up domain.
10. method according to claim 8 or claim 9, wherein when the described first up domain bag
When including the upload control domain and the upstream data domain, methods described also includes：
It is to share the uplink demodulation by the upload control domain and the upstream data configuration of territory
Reference signal.
11. methods according to claim 1, also include：
Multiple resource elements are selected from the subframe, for scheduling detection reference signal, its
Selected in multiple resource elements be continuous in the subframe；Or
Multiple resource elements are selected from the subframe, for scheduling detection reference signal, its
Selected in multiple resource elements at least a portion be discrete in the subframe.
12. methods according to claim 1, also include：
The length of the subframe is configured based on the type and/or data volume of the business for needing transmission.
13. methods according to claim 12, also include：
Configuration subframe pattern, wherein the subframe pattern case is made up of at least one sub-frame configuration, often
Individual sub-frame configuration is respectively suitable for a subframe, and the sub-frame configuration indicates the subframe
The length or described in each domain that the domain and the subframe that length, the subframe include include
The relative length in each domain.
14. methods according to claim 13, also include：
Sent control signaling to user equipment, it indicates the subframe pattern, the subframe pattern
Effective time and the subframe pattern in sub-frame configuration mark.
15. methods according to claim 14, also include：
When needing to update the subframe pattern and/or sub-frame configuration, sent to the user equipment
Another control signaling, it indicates updated subframe pattern, the updated subframe pattern
The mark of the sub-frame configuration in effective time and the updated subframe pattern.
16. methods according to claim 14, wherein the control signaling and/or described
Another control signaling includes physical layer signaling, high-level signaling or the physical layer signaling and described
The combination of high-level signaling.
17. methods according to claim 13, also include：
Based on predetermined condition, the subframe pattern and/or the sub-frame configuration are configured.
18. methods according to claim 17, wherein the predetermined condition include it is following in
At least one：
Desired uplink/downlink ratio；
The amount of current uplink service and downlink business；And
Need the type of the message of transmission.
19. methods according to claim 17, wherein,
When the message for needing transmission is master sync signal, auxiliary synchronous signals and/or Physical Broadcast Channel
When, then configuration has the son in descending domain in the lock in time section of the base station and user equipment
Frame, wherein the descending domain includes at least the one of the descending control domain and the downlink data domain
It is individual；
When the message for needing transmission is Physical Random Access Channel, then periodically configuration has
The subframe in up domain, wherein the up domain includes the upload control domain and the upstream data
At least one of domain；And/or
When the message for needing transmission is beep-page message, subframe of the configuration with descending domain, wherein
The descending domain includes at least one of the descending control domain and the downlink data domain.
A kind of 20. devices for configuring subframe in a base station, described device includes：
First dispensing unit, for by the sub-frame configuration into the subframe that can act as uplink
With the subframe of downlink transfer；And
Second dispensing unit, for using descending control domain, downlink data domain, upload control domain
At least one of and upstream data domain, the subframe is configured.
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| WO2019028797A1 (en) * | 2017-08-10 | 2019-02-14 | 华为技术有限公司 | Uplink control signaling transmission method, terminal device and base station |
| CN109644115A (en) * | 2018-11-23 | 2019-04-16 | 北京小米移动软件有限公司 | Transmission method and device based on direct connected link |
| CN111918334A (en) * | 2019-05-07 | 2020-11-10 | 海能达通信股份有限公司 | Communication method and system |
| WO2021098556A1 (en) * | 2019-11-22 | 2021-05-27 | Huawei Technologies Co., Ltd. | Frame structures for wireless communication |
| CN114868350A (en) * | 2019-12-27 | 2022-08-05 | 高通股份有限公司 | DMRS allocation in subband full duplex |
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| US20100009695A1 (en) * | 2008-07-08 | 2010-01-14 | Tae Soo Kwon | Communication system to perform lending and/or borrowing of a radio resource |
| CN103188028A (en) * | 2011-12-29 | 2013-07-03 | 中国移动通信集团广西有限公司 | Signal interference method and signal interference device |
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| US20100009695A1 (en) * | 2008-07-08 | 2010-01-14 | Tae Soo Kwon | Communication system to perform lending and/or borrowing of a radio resource |
| CN103188028A (en) * | 2011-12-29 | 2013-07-03 | 中国移动通信集团广西有限公司 | Signal interference method and signal interference device |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2019028797A1 (en) * | 2017-08-10 | 2019-02-14 | 华为技术有限公司 | Uplink control signaling transmission method, terminal device and base station |
| CN109644115A (en) * | 2018-11-23 | 2019-04-16 | 北京小米移动软件有限公司 | Transmission method and device based on direct connected link |
| CN109644115B (en) * | 2018-11-23 | 2021-12-03 | 北京小米移动软件有限公司 | Transmission method and device based on direct link |
| CN111918334A (en) * | 2019-05-07 | 2020-11-10 | 海能达通信股份有限公司 | Communication method and system |
| CN111918334B (en) * | 2019-05-07 | 2023-10-17 | 海能达通信股份有限公司 | Communication method and system |
| WO2021098556A1 (en) * | 2019-11-22 | 2021-05-27 | Huawei Technologies Co., Ltd. | Frame structures for wireless communication |
| US11888787B2 (en) | 2019-11-22 | 2024-01-30 | Huawei Technologies Co., Ltd. | Frame structures for wireless communication |
| CN114868350A (en) * | 2019-12-27 | 2022-08-05 | 高通股份有限公司 | DMRS allocation in subband full duplex |
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| CN106937388B (en) | 2022-01-25 |
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