CN103944666B - Subframe configuration method and equipment - Google Patents
Subframe configuration method and equipment Download PDFInfo
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- CN103944666B CN103944666B CN201310020284.6A CN201310020284A CN103944666B CN 103944666 B CN103944666 B CN 103944666B CN 201310020284 A CN201310020284 A CN 201310020284A CN 103944666 B CN103944666 B CN 103944666B
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Abstract
Embodiments of the present invention disclose a kind of subframe configuration method and equipment.At least one downlink subframe configurations that the subframe configuration method can include would be possible to be reconfigured into the downlink subframe for uplink sub-frames are uplink rate matching subframe, wherein uplink rate matching subframe transmitted in orthogonal frequency division multiplex OFDM mode, and uplink rate matching subframe in first or the first two OFDM symbol be not used in up-link transmission.Embodiments of the present invention can avoid UE DL from measuring because DL subframe is reconfigured into the influence disturbed for UL subframe by UL, so that the problem of solving UE backward compatibility by carrying out adaptability configuration to the DL subframe for being possible to be reconfigured into for UL subframe.
Description
Technical field
Embodiments of the present invention are related to communication technical field, and relate more specifically to subframe configuration method and equipment.
Background technology
In current time division duplex (TDD) Long Term Evolution (LTE)/senior long term evolution (LTE-A) system, believe via system
Breath block 1 (SIB1) configures to transmit TDD.The frame structure of seven kinds of TDD configurations as shown in table 1 is defined in existing LTE protocol：
Table 1
Wherein, D represents downlink (DL) subframe, and S represents special (S) subframe, and U represents up-link (UL) subframe.It is logical
Often, S subframes can be used for DL transmission, therefore for the sake of simplicity, " S " subframe can also be considered as " D " subframe.
With the change of uplink downlink business, it can be configured with periodic variation TDD.If for example, current UL business
Significantly more than configuration #0, can be defined as TDD configurations by DL business.Next, with the increase of DL business, configuration #0 may nothing
Method meets demand again, can be changed into TDD configurations to configure #2.The current SIB1 minimal modifications cycle is 640ms, and this possibly can not
Match with the transient change of business.It is therefore proposed the dynamic TDD UL-DL configuration that the cycle is shorter, so as to rapider
Ground is made a response to business change, and this shorter time scale shows better performance.Once (such as eNB) determines for base station
Surely TDD configurations are changed, it needs to send signaling with higher frequency, to notify the TDD reconfigured to configure to user equipment (UE).Root
According to the regulation of current LTE protocol, version 12 (Rel-12) and the UE of version can support this cycle shorter to match somebody with somebody again later
Put, and traditional Rel-8 to Rel-11 UE can not support this reconfigure.
According to Current standards, UE needs cell reference signals (the CRS)/channel state information reference signals transmitted based on DL
(CSI-RS) measurement such as radio link monitoring (RLM)/RRM (RRM), CQI (CQI) is carried out.Such as
Fruit configures DL subframe by dynamic TDD UL-DL and is reconfigured into as UL subframe, then tradition Rel-8 to Rel-11 UE will be because of
There is no CRS/CSI/RS to transmit in new UL subframe and cause the measurement such as RLM/RRM, CQI inaccurate.
In LTE Rel-10, the measurement of limitation subframe is introduced for enhancement type district interference coordination (eICIC), its
In some DL subframes (i.e. subframe #0, #1, #5 and #6) are regularly configured for the subframe that UE is measured, so as to solve
For Rel-10 and later version UE backward compatibility issues.However, Rel-8 and Rel-9 UE does not support this configuration, because
This still has backward compatibility issues for Rel-8 and Rel-9 UE.
The content of the invention
For the defect of prior art, embodiments of the present invention provide a kind of subframe configuration method and equipment.
There is provided a kind of subframe configuration method according to the first aspect of the invention.This method includes would be possible to be re-equipped
At least one downlink subframe configurations in the downlink subframe of uplink sub-frames are set to match for uplink rate
Subframe, wherein uplink rate matching subframe are transmitted in orthogonal frequency division multiplex OFDM mode, and uplink rate is matched
First in subframe or the first two OFDM symbol are not used in up-link transmission.
In one embodiment, first of subframe is matched to uplink rate or the first two OFDM symbol is beaten
Hole, so that it is not used in up-link transmission.
In one embodiment, and then first or the first two OFDM symbol in uplink rate matching subframe
Configuration protection period afterwards.
In one embodiment, at least one OFDM symbol after protective time slot is configured to carry out up-link
Transmission.
In one embodiment, the length of protective time slot is configured with less than to the length of an OFDM symbol.
In one embodiment, the uplink sub-frames that will not be changed after reconfiguring are configured to standard uplink
Way frame.
There is provided a kind of subframe configuration method according to the second aspect of the invention.This method includes would be possible to be re-equipped
At least one downlink subframe configurations being set in the downlink subframe of uplink sub-frames are multicast broadcast single frequency network
MBSFN sub-frame.
In one embodiment, first of MBSFN sub-frame or the first two OFDM symbol are arranged for controlling for signal
With the downlink transmission of reference signal.
In one embodiment, the uplink sub-frames that will not be changed after reconfiguring are configured to standard uplink
Way frame.
There is provided a kind of subframe configuration method according to the third aspect of the invention we.This method includes would be possible to be re-equipped
At least one the downlink subframe fixed configurations being set in the downlink subframe of uplink sub-frames are for reference signal
The downlink subframe of transmission so that at least one downlink subframe will not be reconfigured into be up when dynamic frame is configured
Link subframe.
In one embodiment, the downlink subframe fixed configurations during present frame is configured are to be passed for reference signal
Defeated downlink subframe so that the downlink subframe when carrying out dynamic frame configuration in present frame configuration will not be reconfigured into
For uplink sub-frames.
In one embodiment, UE discontinuous reception DRX period is set and the duration is waken up so that described
The downlink subframe waken up in the duration in DRX cycle is downlink for reference signal transmission by fixed configurations
Subframe, so as to will not be reconfigured into as uplink sub-frames by the downlink subframe of fixed configurations when dynamic frame is configured.
In one embodiment, DRX cycle is set to the length of a frame or field, or its integral multiple length.
There is provided a kind of sub-frame configuration equipment according to the fourth aspect of the invention.The equipment includes uplink rate
With subframe configuration device, it is configured as would be possible to be reconfigured into the downlink subframe for uplink sub-frames at least
One downlink subframe configurations is that uplink rate matches subframe, wherein uplink rate matching subframe in an ofdm fashion
Transmission, and uplink rate matching subframe in first or the first two OFDM symbol be not used in up-link transmission.
In one embodiment, uplink rate matching sub-frame configuration device is additionally configured to uplink rate
Match first in subframe or the first two OFDM symbol is punched, so that it is not used in up-link transmission.
In one embodiment, uplink rate matching sub-frame configuration device is additionally configured in uplink rate
Match in subframe the configuration protection period after and then first or the first two OFDM symbol.
In one embodiment, uplink rate matching sub-frame configuration device is additionally configured to after protective time slot
At least one OFDM symbol be configured to carry out up-link transmission.
In one embodiment, uplink rate matching sub-frame configuration device is additionally configured to the length of protective time slot
Degree is configured with less than the length of an OFDM symbol.
In one embodiment, the equipment also includes standard uplink sub-frame configuration device, and it is configured as weight
Standard uplink subframe is configured to the uplink sub-frames that will not change are postponed.
There is provided a kind of sub-frame configuration equipment according to the fifth aspect of the invention.The equipment includes MBSFN sub-frame and configures dress
Put, it is configured as at least one downlink that would be possible to be reconfigured into the downlink subframe for uplink sub-frames
Sub-frame configuration is MBSFN sub-frame.
In one embodiment, MBSFN sub-frame configuration device is additionally configured to first of MBSFN sub-frame or preceding two
Individual OFDM symbol is configured to the downlink transmission of reference signal.
In one embodiment, the equipment also includes standard uplink sub-frame configuration device, and it is configured as weight
Standard uplink subframe is configured to the uplink sub-frames that will not change are postponed.
There is provided a kind of sub-frame configuration equipment according to the sixth aspect of the invention.The equipment is matched somebody with somebody including downlink subframe
Put device, its be configured as would be possible to being reconfigured into the downlink subframe for uplink sub-frames at least one is descending
Link subframe fixed configurations are downlink subframe for reference signal transmission so that when dynamic frame is configured this at least one
Downlink subframe will not be reconfigured into as uplink sub-frames.
In one embodiment, downlink subframe configurations device is additionally configured to the descending chain during present frame is configured
Way frame fixed configurations are the downlink subframe for reference signal transmission so that when carrying out dynamic frame configuration, present frame is matched somebody with somebody
Downlink subframe in putting will not be reconfigured into as uplink sub-frames.
In one embodiment, the equipment also includes DRX cycle setting device, and it is configured as DRX weeks that sets UE
Phase and wake up the duration so that downlink subframe configurations device by DRX cycle wake up the duration in descending chain
Way frame fixed configurations are the downlink subframe for reference signal transmission, so that when dynamic frame is configured by fixed configurations
Downlink subframe will not be reconfigured into as uplink sub-frames.
In one embodiment, DRX cycle sets device to be additionally configured to DRX cycle being set to a frame or field
Length, or its integral multiple length.
Embodiments of the present invention, can by carrying out adaptability configuration to the DL subframe for being possible to be reconfigured into for UL subframe
Measured with the DL for avoiding UE because DL subframe is reconfigured into the influence disturbed for UL subframe by UL, so that it is simultaneous backward to solve UE
The problem of appearance.
Brief description of the drawings
With reference to accompanying drawing and with reference to described further below, feature, advantage and other aspects of each embodiment of the invention will become
Obtain more obvious.In the accompanying drawings, same or analogous reference represents same or analogous element, wherein：
Fig. 1 shows the flow chart of the subframe configuration method 100 according to an embodiment of the invention；
Fig. 2 shows the example of the structure of existing MBSFN sub-frame；
Fig. 3 shows the example arrangement of the UL rate-matched subframes according to an embodiment of the invention；
Fig. 4 shows the flow chart of subframe configuration method 400 according to another implementation of the invention；
Fig. 5 shows the flow chart of the subframe configuration method 500 of the further embodiment according to the present invention；
Fig. 6 (a) and Fig. 6 (b) show DRX cycle according to the embodiment of the present invention and wake up showing for duration
Example；
Fig. 7 shows the block diagram of the sub-frame configuration equipment 700 according to an embodiment of the invention；
Fig. 8 shows the block diagram of sub-frame configuration equipment 800 according to another implementation of the invention；And
Fig. 9 shows the block diagram of the sub-frame configuration equipment 900 of the further embodiment according to the present invention.
Embodiment
Embodiments of the present invention are explained in more detail and illustrated below in conjunction with accompanying drawing.It should be appreciated that this
Being given for example only property of the drawings and the embodiments effect of invention, is not intended to limit protection scope of the present invention.
Flow chart and block diagram in accompanying drawing, it is illustrated that the possibility according to the method and apparatus of various embodiments of the invention is real
Existing architectural framework, function and operation.At this point, each square frame in flow chart or block diagram can represent module, a journey
A part for sequence section or code a, part for the module, program segment or code is used to realize regulation comprising one or more
Logic function executable instruction.It should also be noted that in some realizations alternately, the function of being marked in square frame
The order marked in accompanying drawing is can be differently configured to occur.For example, two square frames succeedingly represented can essentially be substantially parallel
Ground is performed, and they can also be performed in the opposite order sometimes, and this is depending on involved function.It is also noted that block diagram
And/or the combination of each square frame in flow chart and the square frame in block diagram and/or flow chart, work(as defined in execution can be used
Can or the special hardware based system of operation realize, or can be with the combination of specialized hardware and computer instruction come reality
It is existing.
The embodiments of the present invention are described in detail in an illustrative manner below in conjunction with the accompanying drawings.
Fig. 1 shows the flow chart of the subframe configuration method 100 according to an embodiment of the invention.The present invention's should
A kind of new subframe structure, i.e. UL rate-matcheds subframe are proposed in embodiment.UL rate-matcheds subframe is based on existing many
Broadcast broadcast single frequency network (MBSFN) subframe.
It is known just to define MBSFN sub-frame in LTE first version.As its name suggests, the initial purposes of MBSFN sub-frame is
Support MBSFN transmission.As shown in Fig. 2 existing MBSFN sub-frame includes one or two long OFDM (OFDM) symbols
It is MBSFN regions after control area, control area, the structure and content in MBSFN regions depend on the purposes of MBSFN sub-frame.
According to LTE protocol, the UE of Rel-8 and later version can be received to the transmission in the control area of MBSFN sub-frame, and
The UE of the transmission, which can not be received, will simply ignore these transmission.Moreover, according to LTE protocol, Rel-8/9UE will not be right
The transmission in MBSFN regions is made a response.
The subframe configuration method 100 and UL speed according to an embodiment of the invention are described referring to Fig. 1
With subframe.As shown in figure 1, after method 100 starts, in step S101, it would be possible to be reconfigured into the DL subframe for UL subframe
In at least one DL subframe be configured to UL rate-matched subframes, wherein UL rate-matcheds subframe is transmitted in an ofdm fashion, and
First in UL rate-matched subframes or the first two OFDM symbol are not used in UL transmission.In one embodiment, Ke Yigen
The number for being configured as the subframe of UL rate-matched subframes is determined with system configuration according to reconfiguring.
Fig. 3 shows the example format of the UL rate-matched subframes according to an embodiment of the invention.Such as Fig. 3 institutes
Show, first of UL rate-matched subframes or the first two symbol correspond to the control area of MBSFN sub-frame.
As it was noted above, Rel-8/9UE can be received to the transmission in the control area of MBSFN sub-frame, so can
The reference signal measured for UE is sent with the resource unit by the control area of MBSFN sub-frame.If Advanced Edition
UE UL transmission is carried out during the control area transmission, then can cause severe jamming to Rel-8/9UE measurement.Therefore, root
According to embodiments of the present invention, first in UL rate-matched subframes or the first two OFDM symbol are not configured to carry out UL
Transmission.Because Rel-8/9UE can only receive the transmission of the control area of MBSFN sub-frame, UL rate-matcheds as described above
UL transmission in subframe will not be interfered to Rel-8/9UE measurement.
, can be when entering Mobile state TDD UL-DL configurations, it is to avoid DL subframe according to this subframe configuration method of the present invention
Become to interfere traditional UE DL measurement operations after UL subframe.
In one embodiment, first or the first two OFDM subframe of UL rate-matched subframes are punched, with
It is set to be not used in UL transmission.
In one embodiment, and then match somebody with somebody in UL rate-matched subframes after first or the first two OFDM symbol
Put protective time slot.As shown in figure 3, in UL rate-matched subframes, it is after back to back first or the first two OFDM symbol
Protective time slot.
Because inevitably there is time delay in DL transmitting procedures, so if the UE of Advanced Edition is and then previous
UL transmission is carried out after to two OFDM symbols, then eNB reception can be interfered.Therefore, in previous to two OFDM symbols
Protective time slot is set to be necessary after number.
In one embodiment, at least one OFDM symbol after protective time slot is configured to carry out UL transmission.
As shown in figure 3, the resource in UL rate-matched subframes after protective time slot is used for transmitting uplink data
In one embodiment, the length of protective time slot can be determined based on different cell environments.For example, can root
The length is determined according to radius of society.It may occur to persons skilled in the art that can be according to the configuration protection period in existing S subframes
Mode configure the length of the protective time slot in UL rate-matched subframes.In one embodiment, can be by protective time slot
Length be configured with less than the length of an OFDM symbol, so as to reserve more resources for UL transmission.
In one embodiment, the UL subframe that will not be changed after can reconfiguring is configured to standard UL subframe.
Above-mentioned subframe configuration method can be performed at network element (such as eNB) place.Now can be by UL rate-matcheds
The configuration information of frame is supplied to UE in reconfiguration information or by channel signaling by eNB.
Alternatively, above-mentioned subframe configuration method can also be performed at terminal (such as UE) place.For example, UE can be according to SIB1
TDD configurations and dynamic TDD UL-DL configure the TDD that may reconfigure configure judge which DL subframe be possible to be reconfigured into as
UL subframe, and correspondingly configure UL rate-matched subframes.Identical configuration rule can be used at eNB and UE, thus
Extra signaling is not needed to carry out transmitting configuration information.
Fig. 4 shows the flow chart of subframe configuration method 400 according to another implementation of the invention.
As shown in figure 4, after method 400 starts, in step S401, it would be possible to be reconfigured into the DL subframe for UL subframe
In at least one DL subframe be configured to MBSFN sub-frame.
As it was previously stated, Rel-8/9UE can be received to the transmission in the control area of MBSFN sub-frame.If be directed to
The UL of Advanced Edition by may potentially be changed into from DL subframe UL subframe sub-frame configuration be set forth herein UL rate-matcheds
Subframe, then these sub-frame configurations are MBSFN sub-frame in traditional UE by pin, and DL subframe can be avoided to become after UL subframe to traditional UE
DL measurement operation interfere, so as to solve traditional UE backward compatibility issues.
Below by taking existing LTE protocol as an example, illustrate the mode for configuring MBSFN sub-frame.According to the regulation of agreement, in TDD
In, subframe #0, #1, #5 and #6 as shown in table 1 can not be configured as MBSFN sub-frame, and being so left remaining six subframe can
Using the candidate as MBSFN sub-frame.When entering Mobile state TDD UL-DL and reconfiguring, only subframe #3, #4, #7, #8 and #9 is possible to
It is changed into UL from DL, so these subframes can be configured as MBSFN sub-frame.However, it may occur to persons skilled in the art that this hair
Bright embodiment and the concrete regulation for being limited to above-mentioned LTE protocol, but can apply to exist any MBSFN sub-frame candidate with
And in the case of any TDD configurations.
Equally, as described in method 100, it can be determined to be configured as MBSFN according to UL business demands and system configuration
The number of the subframe of frame.
In an embodiment of the invention, first of MBSFN sub-frame or the first two OFDM symbol are configured to
The DL transmission of reference signal.That is, eNB normally can send reference signal on the control area of MBSFN sub-frame.Phase
Ying Di, traditional UE perform measurement based on the reference signal transmitted on the control area.In this case, due at this to two
There is no UL operations in individual OFDM symbol, influenceed so tradition UE will not be disturbed by UL.
Equally, in one embodiment, the UL subframe that will not be changed after can reconfiguring is configured to standard UL
Subframe.
Subframe configuration method 400 equally can both have been performed at network element, can also be performed in end.Implement
Mode is similar with described in method 100, will not be repeated here.
Fig. 5 shows the flow chart of the subframe configuration method 500 of the further embodiment according to the present invention.
As shown in figure 5, after method 500 starts, in step S501, it would be possible to be reconfigured into the DL subframe for UL subframe
In at least one DL subframe fixed configurations be DL subframe for reference signal transmission so that described in when dynamic frame is configured extremely
A few downlink subframe will not be reconfigured into as uplink sub-frames.
In one embodiment, the TDD with reference to shown in table 1 configures #1, and subframe #4＆#9 is regularly configured for
The DL subframe of reference signal transmission.So, these DL subframes cannot be reconfigured into as UL subframe, thus will not be to user survey
Amount operation is interfered.Equally, it may occur to persons skilled in the art that embodiments of the present invention and being limited to shown in table 1
TDD is configured, but any TDD can be used to configure.
Because according to the embodiment of the present invention, some subframes are DL subframe by fixed configurations, so dynamic TDD UL-
The TDD configurations that DL configurations may be reconfigured can be correspondingly restricted.It is the chosen feelings of the subframe of DL subframe in fixed configurations
Under condition, the configuration set that may be reconfigured include DL subframe set it is identical with the DL subframe set of fixed configurations or fixation match somebody with somebody
The configuration of the superset for the DL subframe set put, to avoid the UL interference of the DL measurements to traditional UE.For example, what if SIB1 was transmitted
Configuration is configuration #1, then subframe #4＆#9 can be regularly configured for the DL subframe of reference signal transmission.So, Gu
Surely the DL subframe configured is subframe #0, #4, #5 and #9 }.Because configuring #1, #2, #4 and #5 DL subframe set with configuration #1's
Sub-frame set is identical, or configuration #1 DL subframe set superset, it is possible that TDD to reconfigure set be { #1, #2, #
4, #5 }.
In an embodiment of the invention, the downlink subframe fixed configurations during present frame can be configured are use
In the downlink subframe of reference signal transmission so that the downlink subframe when carrying out dynamic frame configuration in present frame configuration
It will not be reconfigured into as uplink sub-frames.For example, TDD configurations can be fixed as to some configuration, for example, configure #1.
In an embodiment of the invention, when UE discontinuous reception (DRX) cycle can be set and waking up lasting
Between so that the DL subframe waken up in the duration in DRX cycle is DL for reference signal transmission by fixed configurations
Frame, so as to will not be reconfigured into as UL subframe by the DL subframe of fixed configurations when dynamic frame is configured.
Generally, UE saves the power of battery using DRX.In a DRX cycle, UE intercepts net within the wake-up duration
Network, and its receiver is then closed in other times, into energy-saving mode.
According to the embodiment of the present invention, it will not be reconfigured into as UL subframe waking up DL subframe in the duration, thus
UE DL measurements will not be disturbed by UL, can normally be performed.And in the other times of DRX cycle, because UE receiver
It is closed, so any interference will not also be produced by being changed into UL subframe even if DL subframe.
DRX cycle according to the embodiment of the present invention is described referring to Fig. 6 (a) and Fig. 6 (b) and wakes up the duration
Example.
As shown in Fig. 6 (a), if the TDD configurations transmitted by SIB1, which are configuration #2, traditional UE, will use the TDD always
Configuration, is reconfigured until by SIB1 signalings to it.If however, the UE of Rel-11 and later version supports the time
The shorter dynamic TDD UL-DL of yardstick are reconfigured, then are configured according to the TDD shown in table 1, and subframe #3, #8, #4 and/or #9 can be with
Changed based on business and be changed into UL subframe.Assuming that because the increase TDD configurations of UL business are changed into #0, such subframe #3, #4, #8 and #9
UL subframe is changed into from DL subframe.In this case, if tradition UE performs the survey such as RRM/RLM, CQI also in these subframes
Amount, then measurement can be disturbed by serious UL, so as to cause the measurement statistical value reported to eNB inaccurate.
According to an embodiment of the invention, shown in such as Fig. 6 (a), DRX cycle is set to 5ms, the wake-up duration sets
For 2ms so that fixed to keep constant DL subframe (such as subframe #0, #1, #5 and #6) to be comprised in the wake-up duration, and
And the subframe (such as subframe #3, #4, #8 and #9) for being changed into UL subframe from DL subframe is comprised in the other times of DRX cycle.
So, because other times of the UE by its receiver in DRX cycle are closed, therefore UE will not be in and may be held in the subframe of change
Row DL is measured, so as to avoid the generation of above-mentioned disturbed condition.
Fig. 6 (b) shows DRX cycle and wakes up another example of duration.In Fig. 6 (b), pass through dynamic TDD
UL-DL is reconfigured, and TDD configurations are changed into configuring #2 from configuration #5.Now, in order to avoid UE measurement disturbed by UL, DRX cycle and
The wake-up duration is separately arranged as 10ms and 3ms.
Equally, it will be appreciated by those skilled in the art that embodiments of the present invention and be limited to the TDD shown in table 1 configuration,
But can apply in the case of using any TDD configurations.
The DRX cycle shown in Fig. 6 (a) and Fig. 6 (b) is respectively set to the length of field and a frame, or its integral multiple
Length.However, this is only example, it will be appreciated by those skilled in the art that DRX cycle and wake-up duration can roots
Set according to possible TDD configurations.
Equally, subframe configuration method 500 can both be performed at network element (such as eNB) place, can also be at terminal (such as UE)
Place is performed.If performed at eNB, DL subframe configuration information can be included in reconfiguration information or be believed by channel
Make, DRX cycle configuration information by channel signaling is supplied to UE by eNB.If performed at UE, UE can be according to SIB1
TDD configurations and dynamic TDD UL-DL configure the TDD that may reconfigure configure judge which DL subframe be possible to be reconfigured into as
UL subframe, and correspondingly configured.It is also possible to identical configuration rule be used at eNB and UE, so as to be required for
Extra signaling carrys out transmitting configuration information.
The equipment for illustrating to be able to carry out the above method 100,400 and 500 with reference now to Fig. 7 to Fig. 9.
Fig. 7 shows the block diagram of the sub-frame configuration equipment 700 according to an embodiment of the invention.
Equipment 700 as shown in Figure 7 includes UL rate-matched sub-frame configurations device 701, its be configured as would be possible to by
Reconfigure at least one DL subframe in the DL subframe for UL subframe and be configured to UL rate-matched subframes, wherein UL rate-matcheds
Frame is transmitted in an ofdm fashion, and first in UL rate-matched subframes or the first two OFDM symbol are not used in UL transmission.
In one embodiment, UL rate-matcheds sub-frame configuration device 701 is additionally configured to UL rate-matched subframes
First or the first two OFDM subframe punched so that its be not used in UL transmission.
In one embodiment, UL rate-matcheds sub-frame configuration device 701 is additionally configured in UL rate-matched subframes
In and then configuration protection period after first or the first two OFDM symbol.
In one embodiment, UL rate-matcheds sub-frame configuration device 701 is additionally configured to after protective time slot
At least one OFDM symbol is configured to carry out UL transmission.
In one embodiment, UL rate-matcheds sub-frame configuration device 701 is additionally configured to the length of protective time slot
It is configured with less than the length of an OFDM symbol.
In one embodiment, equipment 700 also includes standard UL subframe configuration device 702, and it is configured as again matching somebody with somebody
The UL subframe that postponing to change is configured to standard UL subframe.
Fig. 8 shows the block diagram of sub-frame configuration equipment 800 according to another implementation of the invention.
Equipment 800 as shown in Figure 8 includes MBSFN sub-frame configuration device 801, and it is configured as would be possible to be reconfigured into
MBSFN sub-frame is configured to at least one DL subframe in the DL subframe of UL subframe.
In one embodiment, MBSFN sub-frame configuration device 801 be additionally configured to first of MBSFN sub-frame or
The first two OFDM symbol is configured to the DL transmission of reference signal.
In one embodiment, equipment 800 also includes standard UL subframe configuration device 802, and it is configured as again matching somebody with somebody
The UL subframe that postponing to change is configured to standard UL subframe.
Fig. 9 shows the block diagram of the sub-frame configuration equipment 900 of the further embodiment according to the present invention.
Equipment 900 as shown in Figure 9 includes DL subframe configuration device 901, its be configured as would be possible to being reconfigured into for
At least one DL subframe fixed configurations in the DL subframe of UL subframe are the DL subframe for reference signal transmission so that in dynamic
At least one DL subframe will not be reconfigured into as UL subframe when frame is configured.
In one embodiment, downlink subframe configurations device 901 is additionally configured to the DL during present frame is configured
Subframe fixed configurations are the DL subframe for reference signal transmission so that the DL when carrying out dynamic frame configuration in present frame configuration
Subframe will not be reconfigured into as UL subframe.
In one embodiment, equipment 900 also includes DRX cycle setting device 902, and it is configured as DRX weeks of UE
Phase and wake up the duration so that downlink subframe configurations device 901 by DRX cycle wake up the duration in DL
Frame fixed configurations are the UL subframe for reference signal transmission, so that will not by the DL subframe of fixed configurations when dynamic frame is configured
It is reconfigured into as UL subframe.
In one embodiment, DRX cycle sets device 902 to be additionally configured to DRX cycle being set to a frame or half
The length of frame, or its integral multiple length.
It should be appreciated that the method for each device respectively with being described with reference to Fig. 1, Fig. 4 and Fig. 5 described in equipment 700 to 900
100th, 400 is corresponding with each step in 500.Thus, it is same above with respect to Fig. 1, Fig. 4 and Fig. 5 operation described and feature
The device suitable for equipment 700 to 900 and wherein included, detail is repeated no more.
It is also understood that equipment 700 to 900 can both realize that in a network element, such as base station can also be realized at end
In end, such as user equipment (UE).In embodiments of the present invention, base station can be macrocell base stations, microcell base station, family
Front yard base station or relay base station etc..UE can be various types of terminals, such as mobile phone, personal digital assistant (PDA), portable
Computer etc..
It should also be understood that, although embodiments of the present invention with TDD LTE protocols as an example, still the invention is not restricted to
This communication system, but can apply to because UL-DL is reconfigured and causes any TDD systems for there are UE backward compatibility issues
In system.For example, can apply in the system of the support agreement mutually compatible with each versions of TDD LTE, or any other TDD logical
In letter system.
Equipment 700 to 900 sharp can be realized in various manners.For example, in some embodiments, it is possible to use software
And/or firmware module is realized.In addition it is also possible to be realized using hardware module.It is currently known or in the future exploitation other
Mode is also feasible, and the scope of the present invention is not limited in this respect.
It should be noted that the method disclosed in embodiments of the present invention can be in software, hardware or software and hardware
Combination in realize.Hardware components can be realized using special logic；Software section can be stored in memory, by appropriate
Instruction execution system (such as microprocessor, personal computer or large scale computer) perform.In some embodiments, it is of the invention
It is embodied as software, it includes but is not limited to firmware, resident software, microcode etc..
Moreover, can also take can the meter that accesses of or computer-readable medium available from computer for embodiments of the present invention
The form of calculation machine program product, these media provide program code for computer or any instruction execution system are used or and its
It is used in combination.For the purpose of description, computer be can use or computer-readable mechanism can be any tangible device, and it can be wrapped
Contain, store, communicating, propagating or transmission procedure is with by the use or in connection of instruction execution system, device or equipment.
Medium can be electric, magnetic, light, electromagnetism, ultrared or semiconductor system (or device or device)
Or propagation medium.The example of computer-readable medium include semiconductor or solid-state memory, tape, removable computer diskette,
Random access storage device (RAM), read-only storage (ROM), hard disk and CD.The example of current CD includes compact disk-read-only
Memory (CD-ROM), compact disk-read/write (CD-R/W) and DVD.
It should be noted that in order that embodiments of the present invention are easier to understand, above description is eliminated for this area
Technical staff for be known and for embodiments of the present invention realizations be likely necessary more more specifically
Ins and outs.The specification for providing the present invention is in order to illustrate and describe, rather than for exhaustive or limit the invention to institute
Disclosed form.For one of ordinary skill in the art, many modifications and changes are all possible.
Therefore, it is to preferably explain the principle and its practical application of the present invention, and make to select and describe embodiment
Those of ordinary skill in the art understand that on the premise of essence of the present invention is not departed from, all modifications and modification are each fallen within by right
It is required that within the protection scope of the present invention limited.
Claims (6)
1. a kind of subframe configuration method, including：
The discontinuous reception DRX period of user equipment (UE) is set and the duration is waken up；And
When would be possible to be reconfigured into wake-up in the downlink subframe for uplink sub-frames in the DRX cycle and continuing
At least one interior downlink subframe fixed configurations are the downlink subframe for reference signal transmission so that in dynamic
At least one downlink subframe described in when frame is configured will not be reconfigured into as uplink sub-frames.
2. according to the method described in claim 1, in addition to：
Downlink subframe fixed configurations during present frame is configured are the downlink subframe for reference signal transmission so that
Downlink subframe when carrying out dynamic frame configuration in the present frame configuration will not be reconfigured into as uplink sub-frames.
3. according to the method described in claim 1, wherein the DRX cycle is arranged to the length of a frame or field, or its is whole
The length of several times.
4. a kind of sub-frame configuration equipment, including：
DRX cycle sets device, is configured as setting the discontinuous reception DRX period of user equipment (UE) and wakes up the duration；
And
Downlink subframe configurations device, is configured as would be possible to be reconfigured into the downlink subframe for uplink sub-frames
In in the DRX cycle wake up the duration at least one downlink subframe fixed configurations be for reference signal
The downlink subframe of transmission so that at least one downlink subframe described in when dynamic frame is configured will not be reconfigured into be upper
Uplink subframe.
5. equipment according to claim 4, wherein the downlink subframe configurations device is additionally configured to present frame
Downlink subframe fixed configurations in configuration are the downlink subframe for reference signal transmission so that carrying out dynamic frame
Downlink subframe during configuration in the present frame configuration will not be reconfigured into as uplink sub-frames.
6. equipment according to claim 4, wherein DRX cycle set device to be additionally configured to set the DRX cycle
For the length of the length of a frame or field, or its integral multiple.
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| CN201310020284.6A CN103944666B (en) | 2013-01-18 | 2013-01-18 | Subframe configuration method and equipment |
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| CN201310020284.6A CN103944666B (en) | 2013-01-18 | 2013-01-18 | Subframe configuration method and equipment |
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| CN103944666B true CN103944666B (en) | 2017-10-31 |
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Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102724688A (en) * | 2011-03-30 | 2012-10-10 | 华为技术有限公司 | Method and apparatus for measuring carrier |
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| US7046702B2 (en) * | 2002-03-07 | 2006-05-16 | Telefonaktiebolaget Lm Ericsson (Publ) | Radio resource control signaling for physical layer configuration changes |
| US7873710B2 (en) * | 2007-02-06 | 2011-01-18 | 5O9, Inc. | Contextual data communication platform |
| US8855062B2 (en) * | 2009-05-28 | 2014-10-07 | Qualcomm Incorporated | Dynamic selection of subframe formats in a wireless network |
| US8649337B2 (en) * | 2009-06-19 | 2014-02-11 | Qualcomm Incorporated | Control channel design for dynamic sub-frame selection |
| CN102271016B (en) * | 2010-06-07 | 2015-09-23 | 上海无线通信研究中心 | A kind of collocation method of novel TDD HARQ UL Un subframe |
| US9344246B2 (en) * | 2010-10-08 | 2016-05-17 | Qualcomm Incorporated | Reference signal configuration and relay downlink control channel |
| EP2676508B1 (en) * | 2011-02-14 | 2017-12-27 | Telefonaktiebolaget LM Ericsson (publ) | Harq handling at relay node reconfiguration |
| CN107819554B (en) * | 2011-03-23 | 2020-06-26 | Lg电子株式会社 | Retransmission method of dynamic subframe setting in wireless communication system and apparatus therefor |
| CN108811141B (en) * | 2011-03-31 | 2023-10-24 | 华为技术有限公司 | Subframe configuration method, base station and user equipment in time division duplex system |
| US8797924B2 (en) * | 2011-05-06 | 2014-08-05 | Innovative Sonic Corporation | Method and apparatus to improve discontinuous reception (DRX) operation for TDD (time division duplex) and FDD (frequency division duplex) mode in carrier aggregation (CA) |
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| CN102724688A (en) * | 2011-03-30 | 2012-10-10 | 华为技术有限公司 | Method and apparatus for measuring carrier |
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Address after: 201206 Shanghai, Pudong Jinqiao Ning Bridge Road, No. 388, No. Patentee after: Shanghai NOKIA Baer Limited by Share Ltd Address before: 201206 Shanghai, Pudong Jinqiao Ning Bridge Road, No. 388, No. Patentee before: Shanghai Alcatel-Lucent Co., Ltd. |