CN103427968B - A kind of management method and system of subframe in time-division duplex system - Google Patents
A kind of management method and system of subframe in time-division duplex system Download PDFInfo
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Abstract
The present invention provides the management method and system of a kind of subframe in time-division duplex system.The method, comprising: downlink subframe of the base station in radio frames does not send public reference signal CRS and/or channel state information reference signals CSI-RS.By not sending CRS and/or CSI-RS signal in configurating downlink subframe, reduce the occupied resource of metrical information, effectively increase the transfer resource of transmission downlink data, the ability that enhancing base station down data are sent achievees the purpose that make full use of radio channel resource.
Description
Technical field
The present invention relates to the communications field more particularly to the management methods and system of a kind of subframe in time-division duplex system.
Background technique
In time division duplex (Time Division Duplex, abbreviation TDD) system or long term evolution (Long Term
Evolution, abbreviation LTE) system TDD operating mode in, due between uplink service and downlink business using the time-division
The mode of multiplexing, so the ascending-descending subframes configuration of TDD system is not one-to-one relationship.According to uplink and downlink service rate
Difference be corresponding with 7 kinds of subframe configuration formats described in the following table 1:
Table 1
Wherein, " D " indicates the subframe for being exclusively used in downlink transfer, and " U " indicates the subframe for being exclusively used in uplink, and " S " is indicated
For descending pilot frequency time slot (DwPTS, Downlink Pilot Time Slot), protection interval (GP, Guard Period) and
The special subframe in these three domains uplink pilot time slot (UpPTS, Uplink Pilot Time Slot).
Downlink subframe is used for transmission downlink business, and sub-frame of uplink is used for transmission uplink service, each uplink-downlink configuration is all
A kind of ability of system transmission uplink and downlink portfolio is corresponded to.From table 1 it follows that the strongest subframe of downlink business ability is matched
Setting is configuration 5, and corresponding uplink and downlink service rate ratio is 1: 9.The strongest sub-frame configuration of uplink service ability is configuration 0, right
The uplink and downlink service rate ratio answered is 3: 2.System is once it is determined that any in 7 kinds of sub-frame configurations fixed given in above-mentioned table
It is a kind of, it will to send ascending-descending subframes, the corresponding hair of system under the premise of sub-frame configuration is constant according to determining sub-frame configuration
It is also determining for serving the ability of downlink traffic.
But it under the premise of sub-frame configuration is given, if the range of the portfolio dynamic change of uplink and downlink is larger, is giving
In the fixed time, the sub-frame configuration in original system cannot reasonably adapt to new business demand, therefore in order to reasonable
Using channel resource, meet the needs of uplink and downlink service dynamic variation, it can be right in the case where original sub-frame configuration is constant
Its original configuration can wherein be changed with the subframe of dynamic configuration, thus change the ascending-descending subframes number in a radio frames,
Achieve the purpose that dynamic configuration uplink and downlink portfolio.
Summary of the invention
The present invention provides the management method and system of a kind of subframe in time-division duplex system, technical problems to be solved be as
What increases down channel resources.
In order to solve the above technical problems, the present invention provides the following technical scheme that
The management method of subframe in a kind of TDD system, comprising:
Downlink subframe of the base station in radio frames does not send public reference signal CRS and/or channel state information with reference to letter
Number CSI-RS.
Preferably, the method also has a characteristic that the downlink subframe is that base station configures in the period one to described
It is capable of the sub-frame configuration of flexible configuration in radio frames to obtain after downlink subframe.
Preferably, the method also has a characteristic that the subframe for capableing of flexible configuration is in the different configuration periods
Radio frames in be located at same position, and the subframe that signal transmission direction is different, the signal transmission direction is upstream or downstream
Or do not transmit signal.
Preferably, the method also has a characteristic that
The configuration period is the duration of n radio frames, and wherein n is the integer more than or equal to 1.
Preferably, the method also has a characteristic that
User equipment (UE) by from base station receive one include configuration cycle information high-level signaling obtain configuration the period when
It is long, alternatively, UE obtains the duration in configuration period from the broadcast message of base station.
Preferably, the method also has a characteristic that
If the configuration period is the duration of multiple radio frames, it is located in all radio frames in the same configuration period
The subframe for capableing of flexible configuration of same position is all sub-frame of uplink or is all downlink subframe.
Preferably, the method also has a characteristic that
Base station is configured to the subframe for capableing of flexible configuration and j-th of configuration of downlink subframe within i-th of configuration period
The subframe for capableing of flexible configuration that downlink subframe is configured in period is identical or different, and wherein i and j is more than or equal to 1
Integer, and i ≠ j.
Preferably, the method also has a characteristic that UE is that obtain in radio frames by following either type being capable of spirit
The subframe of configuration living is downlink subframe:
Mode one: UE obtains the position of downlink subframe by receiving the high-level signaling of base station configuration；
Wherein, information entrained by the high-level signaling is a kind of new sub-frame configuration of base station notice UE, wherein new son
Frame configuration and the sub-frame configuration in previous configuration period are identical or different；Alternatively, information entrained by the high-level signaling is to be used for
The information of indicating downlink subframe position；
Mode two: UE determines that current subframe is downlink subframe by blind Detecting.
Preferably, the method also has a characteristic that
Do not send CRS and/or CSI-RS downlink subframe be the radio frames in can flexible configuration downlink subframe in
It is some or all of.
Preferably, the method also have a characteristic that the method also includes:
The base station send one be used to indicate not the downlink subframe send the high-level signaling of CRS and/or CSI-RS to
UE；Alternatively, base station is fixed not to send CRS and/or CSI-RS in the downlink subframe.
Preferably, the method also has a characteristic that
In the increase in demand for detecting downlink resource, base station reconfigure the ascending-descending subframes in radio frames position and
Number, and do not send when the subframe for capableing of flexible configuration is configured to downlink subframe by base station public reference signal CRS and/or
Channel state information reference signals CSI-RS.
Preferably, the method also has a characteristic that the base station will be capable of flexible configuration in a configuration period
Sub-frame configuration is after downlink subframe, further includes:
It will be originally intended to send the transmission of public reference signal and/or channel state information reference signals in the downlink subframe
Resource sends downlink service data.
The management system of subframe in a kind of TDD system, including base station, wherein the base station includes:
Configuration device does not send public reference signal CRS and/or channel status for configuring the downlink subframe in radio frames
Information reference signal CSI-RS.
Preferably, the system also has a characteristic that the downlink subframe is that base station configures in the period one to described
It is capable of the sub-frame configuration of flexible configuration in radio frames to obtain after downlink subframe.
Preferably, the system also has a characteristic that the subframe for capableing of flexible configuration is in the different configuration periods
Radio frames in be located at same position, and the subframe that signal transmission direction is different, the signal transmission direction is upstream or downstream
Or do not transmit signal.
Preferably, the system also has a characteristic that
The configuration period is the duration of n radio frames, and wherein n is the integer more than or equal to 1.
Preferably, the system also has a characteristic that the system also includes UE, wherein the UE, comprising:
Reception device, for obtaining the configuration period by receiving the high-level signaling including configuration cycle information from base station
Duration, alternatively, obtaining the duration in configuration period from the broadcast message of base station.
Preferably, the system also has a characteristic that
If the configuration period is the duration of multiple radio frames, it is located in all radio frames in the same configuration period
The subframe for capableing of flexible configuration of same position is all sub-frame of uplink or is all downlink subframe.
Preferably, the system also has a characteristic that
Base station is configured to the subframe for capableing of flexible configuration and j-th of configuration of downlink subframe within i-th of configuration period
The subframe for capableing of flexible configuration that downlink subframe is configured in period is identical or different, and wherein i and j is more than or equal to 1
Integer, and i ≠ j.
Preferably, the system also has a characteristic that the UE further include:
Acquisition device, the subframe for obtaining capableing of flexible configuration in radio frames by following either type is downlink subframe
:
Mode one: UE obtains the position of downlink subframe by receiving the high-level signaling of base station configuration；
Wherein, information entrained by the high-level signaling is a kind of new sub-frame configuration of base station notice UE, wherein new son
Frame configuration and the sub-frame configuration in previous configuration period are identical or different；Alternatively, information entrained by the high-level signaling is to be used for
The information of indicating downlink subframe position；
Mode two: UE determines that current subframe is downlink subframe by blind Detecting.
Preferably, the system also has a characteristic that
Do not send CRS and/or CSI-RS downlink subframe be the radio frames in can flexible configuration downlink subframe in
It is some or all of.
Preferably, the system also has a characteristic that the base station further include:
It notifies device, does not believe in the high level that the downlink subframe sends CRS and/or CSI-RS for sending one and being used to indicate
It enables to UE.
Preferably, the system also has a characteristic that
The configuration device, it is upper and lower in radio frames for reconfiguring in the increase in demand for detecting downlink resource
The position of row subframe and number, and do not send public ginseng when the subframe for capableing of flexible configuration is configured to downlink subframe by base station
Examine signal and/or channel state information reference signals.
Preferably, the system also has a characteristic that the base station further include:
Sending device is connected with the configuration device, sends common reference letter for will be originally intended in the downlink subframe
Number and/or channel state information reference signals transfer resource send downlink service data.
By not sending CRS and/or CSI-RS signal in configurating downlink subframe, reduce the occupied money of metrical information
Source, effectively increases the transfer resource of transmission downlink data, and the ability that enhancing base station down data are sent reaches and makes full use of nothing
The purpose of line channel resource.
Detailed description of the invention
Fig. 1 is that the configuration period is 10ms in the present invention and the initial sub-frame configuration of TDD system is the schematic diagram 1 for configuring 0；
Fig. 2 is that the configuration period is 10ms in the present invention and the initial sub-frame configuration of TDD system is the schematic diagram 2 for configuring 0；
Fig. 3 is that the configuration period is 10ms in the present invention and the initial sub-frame configuration of TDD system is the schematic diagram 1 for configuring 1；
Fig. 4 is that the configuration period is 10ms in the present invention and the initial sub-frame configuration of TDD system is the schematic diagram 2 for configuring 1；
Fig. 5 is that the configuration period is 10ms in the present invention and the initial sub-frame configuration of TDD system is the schematic diagram 1 for configuring 3；
Fig. 6 is that the configuration period is 10ms in the present invention and the initial sub-frame configuration of TDD system is the schematic diagram 2 for configuring 3；
Fig. 7 is that the configuration period is 200ms in the present invention and the initial sub-frame configuration of TDD system is the schematic diagram 1 for configuring 0；
Fig. 8 is that the configuration period is 200ms in the present invention and the initial sub-frame configuration of TDD system is the schematic diagram 2 for configuring 0；
Fig. 9 is that the configuration period is 200ms in the present invention and the initial sub-frame configuration of TDD system is the schematic diagram 1 for configuring 1；
Figure 10 is that the configuration period is 200ms in the present invention and the initial sub-frame configuration of TDD system is the schematic diagram 2 for configuring 1；
Figure 11 is that the configuration period is 200ms in the present invention and the initial sub-frame configuration of TDD system is the schematic diagram 1 for configuring 3；
Figure 12 is that the configuration period is 200ms in the present invention and the initial sub-frame configuration of TDD system is the schematic diagram 2 for configuring 3；
Figure 13 is that the configuration period is 640ms in the present invention and the initial sub-frame configuration of TDD system is the schematic diagram 1 for configuring 0；
Figure 14 is that the configuration period is 640ms in the present invention and the initial sub-frame configuration of TDD system is the schematic diagram 2 for configuring 0；
Figure 15 is that the configuration period is 640ms in the present invention and the initial sub-frame configuration of TDD system is the schematic diagram 1 for configuring 1；
Figure 16 is that the configuration period is 640ms in the present invention and the initial sub-frame configuration of TDD system is the schematic diagram 2 for configuring 1；
Figure 17 is that the configuration period is 640ms in the present invention and the initial sub-frame configuration of TDD system is the schematic diagram 1 for configuring 3；
Figure 18 is that the configuration period is 640ms in the present invention and the initial sub-frame configuration of TDD system is the schematic diagram 2 for configuring 3；
Figure 19 is the flow diagram of the management method embodiment of subframe in time-division duplex system provided by the invention.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, right below in conjunction with the accompanying drawings and the specific embodiments
The present invention is described in further detail.It should be noted that in the absence of conflict, embodiment and implementation in the application
Feature in example can mutual any combination.
In tdd systems, because certain subframes can be flexible in the radio frames included in a configuration period
Configuration, when these subframes are flexibly configured to downlink subframe, increases the ability of downlink data transmission.The special needle of the present invention
The scene of downlink subframe is configured to by base station to the subframe of flexibly configurable in TDD system, proposes not row subframe in these lower
The upper method for sending CRS and/or CSI-RS, takes full advantage of down channel resources, achievees the purpose that improve data throughout.
To facilitate the understanding of the present invention, the present invention will be further elaborated combined with specific embodiments below.
Firstly the need of explanation, the downlink subframe for not sending CRS and/or CSI-RS is to configure the wireless of periods different
It is located at same position, and the subframe that signal transmission direction can be different in frame.The signal transmission direction be upstream or downstream or
Do not transmit signal.Only when it is downlink subframe that base station is by therein certain or whole sub-frame configurations, go in these lower
CRS and/or CSI-RS is not sent in the part subframe of subframe or whole subframes.
Wherein the downlink subframe of base station side configuration be according to a configuration period, can be with by the configuration in the configuration period
Change ascending-descending subframes number in radio frames, so being configured to the subframe of downlink subframe in this configuration period in upper configuration week
Phase may also be downlink subframe, but be also possible to as sub-frame of uplink.
Embodiment 1
The present embodiment is radio frames, that is, 10ms scene for the configuration period, wherein the configuration period is a radio frames
Duration.Wherein the configuration period can have base station to notify by a high-level signaling to UE.
Base station is configured to the subframe for capableing of flexible configuration and j-th of configuration of downlink subframe within i-th of configuration period
The subframe for capableing of flexible configuration that downlink subframe is configured in period is identical or different, wherein i and be whole more than or equal to 1
Number, and i ≠ j.
Embodiment 1-1
The present embodiment is the scene for configuring 0 for the initial sub-frame configuration of radio frames, as shown in Figure 1.
One radio frames of TDD system include 10 subframes, also, the number of 10 subframes is successively subframe 0, subframe
1 ..., subframe 9.Wherein subframe 3, subframe 4, subframe 8 and subframe 9 are to be capable of the subframe of flexible configuration, although that is, in standard agreement
Explicitly defining the subframe is downlink subframe or sub-frame of uplink, but these subframes can be by its original son of base station configuration change
Frame characteristic is referred to as this subframe to be capable of the subframe of flexible configuration herein.
Within the previous configuration period, the sub-frame configuration of radio frames is configuration 0, i.e. DSUUUDSUUU.Match previous
Setting subframe 3 in the period, subframe 4, subframe 8 and subframe 9 is sub-frame of uplink.Within this configuration period, base station is by subframe 3, subframe
4, subframe 8 and subframe 9 are each configured to downlink subframe, and the frame structure with the radio frames postponed is DSUDDDSUDD, i.e., existing standard
The sub-frame configuration 2 that middle frame structure defines.Base station by high-level signaling notify UE sub-frame configuration this period be configuration 2, UE according to
This signals the sub-frame configuration for obtaining this period, i.e., in this configuration period, the frame structure of radio frames is DSUDDDSUDD.
It can thus be seen that base station is configured to the son for capableing of flexible configuration of downlink subframe within i-th of configuration period
Frame and the subframe for capableing of flexible configuration that downlink subframe is configured in j-th of configuration period are different, and wherein i and j are
Integer more than or equal to 1, and i ≠ j.
In addition, the information for not sending CRS and/or CSI-RS on the position of subframe 3, subframe 4, subframe 8 and subframe 9 can also
To be notified by a high-level signaling to UE.Certainly, base station side can also be fixed does not send on downlink subframe, i.e. the fixation is not sent out
Sending is that base station side and terminal side are defaulted, and since regulation does not send CRS and/or CSI-RS, UE is without to above-mentioned signal
It is detected.
Certainly, which subframe by base station is configured to downlink subframe in a radio frames, and UE can also be by receiving in subframe
In the process, show which subframe is downlink subframe by blind Detecting.
Embodiment 1-2
The present embodiment is the scene for configuring 0 for the initial sub-frame configuration of radio frames, as shown in Figure 2.
One radio frames of TDD system include 10 subframes, also, the number of 10 subframes is successively subframe 0, subframe
1 ..., subframe 9.Wherein subframe 3, subframe 4, subframe 8 and subframe 9 are to be capable of the subframe of flexible configuration.
Within the previous configuration period, the sub-frame configuration of radio frames is configuration 0, i.e. DSUUUDSUUU.Match previous
Setting subframe 3 in the period, subframe 4, subframe 8 and subframe 9 is sub-frame of uplink.Within this configuration period, base station configures subframe 4 and son
Frame 9 is downlink subframe, and notifies UE within this period, and subframe 0, subframe 4, subframe 5 and subframe 9 are downlink subframe, i.e. this configuration
In period, the frame structure of radio frames is DSUUDDSUUD.
Base station by the information for not sending CRS and/or CSI-RS in subframe 4 and subframe 9 by a high-level signaling notify to
UE。
Embodiment 1-3
The present embodiment is the scene for configuring 1 for the initial sub-frame configuration of radio frames, as shown in Figure 3.
One radio frames of TDD system include 10 subframes, also, the number of 10 subframes is successively subframe 0, subframe
1 ..., subframe 9.Wherein subframe 3 and subframe 8 are to be capable of the subframe of flexible configuration.
Within the previous configuration period, the sub-frame configuration of radio frames is configuration 1, i.e. DSUUDDSUUD.Match previous
Setting subframe 3 and subframe 8 in the period is sub-frame of uplink.Within this configuration period, subframe 3 and subframe 8 are configured downlink by base station
Subframe, the frame structure with the radio frames postponed are DSUDDDSUDD, i.e., the sub-frame configuration 2 that frame structure defines in existing standard.Base
It stands and notifies UE sub-frame configuration in the subframe that this period is that 2, UE of configuration signals to obtain this period according to this by high-level signaling
Configuration, i.e., in this configuration period, the frame structure of radio frames is DSUDDDSUDD.
Base station by the information for not sending CRS and/or CSI-RS in subframe 3 and subframe 8 by a high-level signaling notify to
UE。
Embodiment 1-4
The present embodiment is the scene for configuring 1 for the initial sub-frame configuration of radio frames, as shown in Figure 4.
One radio frames of TDD system include 10 subframes, also, the number of 10 subframes is successively subframe 0, subframe
1 ..., subframe 9.Wherein subframe 3 and subframe 8 are to be capable of the subframe of flexible configuration.
Within the previous configuration period, the sub-frame configuration of radio frames is configuration 1, i.e. DSUUDDSUUD.Match previous
Setting subframe 3 and subframe 8 in the period is sub-frame of uplink.Within this configuration period, it is downlink subframe that base station, which configures subframe 3, and is led to
UE is known within this period, subframe 0, subframe 3, subframe 4, subframe 5 and subframe 9 are downlink subframe, i.e., in this configuration period, radio frames
Frame structure be DSUDDDSUUD.
Base station notifies the information for not sending CRS and/or CSI-RS in subframe 3 to UE by a high-level signaling.
Embodiment 1-5
The present embodiment is the scene for configuring 3 for the initial sub-frame configuration of radio frames, as shown in Figure 5.
One radio frames of TDD system include 10 subframes, also, the number of 10 subframes is successively subframe 0, subframe
1 ..., subframe 9.Wherein subframe 3 and subframe 4 are to be capable of the subframe of flexible configuration.
Within the previous configuration period, the sub-frame configuration of radio frames is configuration 3, i.e. DSUUUDDDDD.Match previous
Setting subframe 3 and subframe 4 in the period is sub-frame of uplink.Within this configuration period, subframe 3 and subframe 4 are configured downlink by base station
Subframe, the frame structure with the radio frames postponed are DSUDDDDDDD, i.e., the sub-frame configuration 5 that frame structure defines in existing standard.Base
It stands and notifies UE sub-frame configuration in the subframe that this period is that 5, UE of configuration signals to obtain this period according to this by high-level signaling
Configuration, i.e., in this configuration period, the frame structure of radio frames is DSUDDDDDDD.
Base station by the information for not sending CRS and/or CSI-RS in subframe 3 and subframe 4 by a high-level signaling notify to
UE。
Embodiment 1-6
The present embodiment is the scene for configuring 3 for the initial sub-frame configuration of radio frames, as shown in Figure 6.
One radio frames of TDD system include 10 subframes, also, the number of 10 subframes is successively subframe 0, subframe
1 ..., subframe 9.Wherein subframe 3 and subframe 4 are to be capable of the subframe of flexible configuration.
Within the previous configuration period, the sub-frame configuration of radio frames is configuration 3, i.e. DSUUUDDDDD.Match previous
Setting subframe 3 and subframe 4 in the period is sub-frame of uplink.Within this configuration period, it is downlink subframe that base station, which configures subframe 4, and is led to
UE is known within this period, and subframe 0, subframe 4, subframe 5, subframe 6, subframe 7, subframe 8 and subframe 9 are downlink subframe, i.e. this configuration
In period, the frame structure of radio frames is DSUUDDDDDD.
Base station notifies the information for not sending CRS and/or CSI-RS in subframe 4 to UE by a high-level signaling.
Embodiment 2
The present embodiment is duration, that is, 200ms scene of 20 radio frames for the configuration period.
If the configuration period is the duration of multiple radio frames, it is located in all radio frames in the same configuration period
The subframe for capableing of flexible configuration of same position is all sub-frame of uplink or is all downlink subframe.For example, the same configuration period
N-th of subframe is downlink subframe in each frame of 20 interior radio frames, and m-th of subframe is sub-frame of uplink, wherein m and n
For 0 to 9 integer, and m is not equal to n.
Embodiment 2-1
The present embodiment is the scene for configuring 0 for the initial sub-frame configuration of radio frames, as shown in Figure 7.
One radio frames of TDD system include 10 subframes, also, the number of 10 subframes is successively subframe 0, subframe
1 ..., subframe 9.Wherein subframe 3, subframe 4, subframe 8 and subframe 9 are to be capable of the subframe of flexible configuration.
Within the previous configuration period, the sub-frame configuration of 20 radio frames is configuration 0, i.e., the frame structure of each radio frames
It is DSUUUDSUUU.On subframe 3, subframe 4, subframe 8 and subframe 9 be in a radio frames i.e. within the previous configuration period
Row subframe.Within this configuration period, subframe 3, subframe 4, subframe 8 and subframe 9 are configured downlink subframe by base station, with the nothing postponed
The frame structure of line frame is DSUDDDSUDD, i.e., the sub-frame configuration 2 that frame structure defines in existing standard.Base station is logical by high-level signaling
Know UE sub-frame configuration in the sub-frame configuration that this period is that 2, UE of configuration signals to obtain this period according to this, i.e. this configuration period
Interior, the frame structure of each radio frames is DSUDDDSUDD.
Base station will not be sent on the position of the subframe 3 of each radio frames in 20 radio frames, subframe 4, subframe 8 and subframe 9
The information of CRS and/or CSI-RS is notified by a high-level signaling to UE.
Embodiment 2-2
The present embodiment is the scene for configuring 0 for the initial sub-frame configuration of radio frames, as shown in Figure 8.
One radio frames of TDD system include 10 subframes, also, the number of 10 subframes is successively subframe 0, subframe
1 ..., subframe 9.Wherein subframe 3, subframe 4, subframe 8 and subframe 9 are to be capable of the subframe of flexible configuration.
Within the previous configuration period, the sub-frame configuration of 20 radio frames is configuration 0, i.e., the frame structure of each radio frames
It is DSUUUDSUUU, i.e., subframe 3, subframe 4, subframe 8 and subframe 9 are sub-frame of uplink within the previous configuration period.At this
It configuring in the period, it is downlink subframe that base station, which configures subframe 4 and subframe 9 in each radio frames, and subframe 3 and subframe 8 are sub-frame of uplink,
And notifying UE within this period, subframe 0, subframe 4, subframe 5 and subframe 9 are downlink subframe, i.e., each wireless in this configuration period
The frame structure of frame is DSUUDDSUUD.Certainly, the mode of downlink subframe position is notified to be not limited to this, it can also be by uplink
The position of frame, downlink subframe and special subframe is notified to UE.To sum up, as long as notice can allow UE to obtain downlink subframe position
The information set.For example, notifying the position of sub-frame of uplink and special subframe in a radio frames, UE can be obtained according to exclusion
Other subframes in radio frames other than above-mentioned position are downlink subframe out.
Base station by a high-level signaling by the subframe 4 of each radio frames in 20 radio frames and the position of subframe 9 not
CRS and/or CSI-RS is sent to notify by high-level signaling to UE.
Embodiment 2-3
The present embodiment is the scene for configuring 1 for the initial sub-frame configuration of radio frames, as shown in Figure 9.
One radio frames of TDD system include 10 subframes, also, the number of 10 subframes is successively subframe 0, subframe
1 ..., subframe 9.Wherein subframe 3 and subframe 8 are to be capable of the subframe of flexible configuration.
Within the previous configuration period, the sub-frame configuration of 20 radio frames is configuration 1, i.e., the frame structure of each radio frames
It is DSUUDDSUUD, i.e., subframe 3 and subframe 8 are sub-frame of uplink in each radio frames within the previous configuration period.At this
It configures in the period, it is downlink subframe, the frame structure with the radio frames postponed that base station, which configures subframe 3 and subframe 8 in each radio frames,
It is DSUDDDSUDD, i.e., the sub-frame configuration 2 that frame structure defines in existing standard.Base station notifies UE sub-frame configuration by high-level signaling
It is the sub-frame configuration for configuring 2, UE and signaling to obtain this period according to this in this period, i.e., in this configuration period, 20 wireless
The frame structure of frame is DSUDDDSUDD.
Base station will not send CRS in the subframe 3 and subframe 8 of each radio frames in 20 radio frames by a high-level signaling
And/or the information of CSI-RS is notified by a high-level signaling to UE.
Embodiment 2-4
The present embodiment is the scene for configuring 1 for the initial sub-frame configuration of radio frames, as shown in Figure 10.
One radio frames of TDD system include 10 subframes, also, the number of 10 subframes is successively subframe 0, subframe
1 ..., subframe 9.Wherein subframe 3 and subframe 8 are to be capable of the subframe of flexible configuration.
Within the previous configuration period, the sub-frame configuration of 20 radio frames is configuration 1, i.e., the frame structure of each radio frames
It is DSUUDDSUUD, i.e., subframe 3 and subframe 8 are sub-frame of uplink in each radio frames within the previous configuration period.At this
It configures in the period, it is downlink subframe that base station, which configures subframe 3 in each radio frames, and notifies UE within this period, subframe 0, subframe
3, subframe 4, subframe 5 and subframe 9 are downlink subframe, i.e., in this configuration period, the frame structure of 20 radio frames is
DSUDDDSUUD。
Base station will not send CRS and/or CSI- in the subframe 3 of each radio frames in 20 radio frames by a high-level signaling
The information of RS is notified by a high-level signaling to UE.
Embodiment 2-5
The present embodiment is the scene for configuring 3 for the initial sub-frame configuration of radio frames, as shown in figure 11.
One radio frames of TDD system include 10 subframes, also, the number of 10 subframes is successively subframe 0, subframe
1 ..., subframe 9.Wherein subframe 3 and subframe 4 are to be capable of the subframe of flexible configuration.
Within the previous configuration period, the sub-frame configuration of 20 radio frames is configuration 3, i.e., the frame structure of each radio frames
It is DSUUUDDDDD, i.e., subframe 3 and subframe 4 are sub-frame of uplink in each radio frames within the previous configuration period.At this
It configures in the period, it is downlink subframe, the frame structure with the radio frames postponed that base station, which configures subframe 3 and subframe 4 in each radio frames,
It is DSUDDDDDDD, i.e., the sub-frame configuration 5 that frame structure defines in existing standard.Base station notifies UE sub-frame configuration by high-level signaling
It is the sub-frame configuration for configuring 5, UE and signaling to obtain this period according to this in this period, i.e., in this configuration period, 20 wireless
The frame structure of frame is DSUDDDDDDD.
Base station will not send CRS in the subframe 3 and subframe 4 of each radio frames in 20 radio frames by a high-level signaling
And/or the information of CSI-RS is notified by a high-level signaling to UE.
Embodiment 2-6
The present embodiment is the scene for configuring 3 for the initial sub-frame configuration of radio frames, as shown in figure 12.
One radio frames of TDD system include 10 subframes, also, the number of 10 subframes is successively subframe 0, subframe
1 ..., subframe 9.Wherein subframe 3 and subframe 4 are to be capable of the subframe of flexible configuration.
Within the previous configuration period, the sub-frame configuration of 20 radio frames is configuration 3, i.e., the frame structure of each radio frames
It is DSUUUDDDDD, i.e., subframe 3 and subframe 4 are sub-frame of uplink in each radio frames within the previous configuration period.At this
It configures in the period, it is downlink subframe that base station, which configures subframe 4 in each radio frames, and notifies UE within this period, subframe 0, subframe
4, subframe 5, subframe 6, subframe 7, subframe 8 and subframe 9 are downlink subframe, i.e., in this configuration period, the frame structure of 20 radio frames
It is DSUUDDDDDD.
Base station will not send CRS and/or CSI- in the subframe 4 of each radio frames in 20 radio frames by a high-level signaling
The information of RS is notified by a high-level signaling to UE.
Embodiment 3
The present embodiment is 64 radio frames, that is, 640ms scenes for the configuration period.
Embodiment 3-1
The present embodiment is the scene for configuring 0 for the initial sub-frame configuration of radio frames, as shown in figure 13.
One radio frames of TDD system include 10 subframes, also, the number of 10 subframes is successively subframe 0, subframe
1 ..., subframe 9.Wherein subframe 3, subframe 4, subframe 8 and subframe 9 are to be capable of the subframe of flexible configuration.
Within the previous configuration period, the sub-frame configuration of 64 radio frames is configuration 0, i.e., the frame structure of each radio frames
It is DSUUUDSUUU, i.e., within the previous configuration period in each radio frames on subframe 3, subframe 4, subframe 8 and subframe 9 be
Row subframe.Within this configuration period, it is downlink subframe that base station, which configures subframe 3, subframe 4, subframe 8 and subframe 9 in each radio frames,
Frame structure with the radio frames postponed is DSUDDDSUDD, i.e., the sub-frame configuration 2 that frame structure defines in existing standard.Base station passes through
High-level signaling notifies UE sub-frame configuration in the sub-frame configuration that this period is that 2, UE of configuration signals to obtain this period according to this, i.e.,
In this configuration period, the frame structure of 64 radio frames is DSUDDDSUDD.
Base station will not send CRS in the subframe 3 and subframe 8 of each radio frames in 64 radio frames by a high-level signaling
And/or the information of CSI-RS is notified by a high-level signaling to UE.
Embodiment 3-2
The present embodiment is the scene for configuring 0 for the initial sub-frame configuration of radio frames, as shown in figure 14.
One radio frames of TDD system include 10 subframes, also, the number of 10 subframes is successively subframe 0, subframe
1 ..., subframe 9.Wherein subframe 3, subframe 4, subframe 8 and subframe 9 are to be capable of the subframe of flexible configuration.
Within the previous configuration period, the sub-frame configuration of 64 radio frames is configuration 0, i.e., the frame structure of each radio frames
It is DSUUUDSUUU, i.e., within the previous configuration period in each radio frames on subframe 3, subframe 4, subframe 8 and subframe 9 be
Row subframe.Within this configuration period, it is downlink subframe, subframe 3 and subframe 8 that base station, which configures subframe 4 and subframe 9 in each radio frames,
For sub-frame of uplink, and notify UE within this period, subframe 0, subframe 4, subframe 5 and subframe 9 are downlink subframe, i.e. this configuration period
Interior, the frame structure of 64 radio frames is DSUUDDSUUD.
Base station will not send CRS in the subframe 4 and subframe 9 of each radio frames in 64 radio frames by a high-level signaling
And/or the information of CSI-RS is notified by a high-level signaling to UE.
Embodiment 3-3
The present embodiment is the scene for configuring 1 for the initial sub-frame configuration of radio frames, as shown in figure 15.
One radio frames of TDD system include 10 subframes, also, the number of 10 subframes is successively subframe 0, subframe
1 ..., subframe 9.Wherein subframe 3 and subframe 8 are to be capable of the subframe of flexible configuration.
Within the previous configuration period, the sub-frame configuration of 64 radio frames is configuration 1, i.e., the frame structure of each radio frames
It is DSUUDDSUUD, i.e., subframe 3 and subframe 8 are sub-frame of uplink in each radio frames within the previous configuration period.At this
It configures in the period, it is downlink subframe, the frame structure with the radio frames postponed that base station, which configures subframe 3 and subframe 8 in each radio frames,
It is DSUDDDSUDD, i.e., the sub-frame configuration 2 that frame structure defines in existing standard.Base station notifies UE sub-frame configuration by high-level signaling
It is the sub-frame configuration for configuring 2, UE and signaling to obtain this period according to this in this period, i.e., in this configuration period, 64 wireless
The frame structure of frame is DSUDDDSUDD.
Base station will not send CRS in the subframe 3 and subframe 8 of each radio frames in 64 radio frames by a high-level signaling
And/or the information of CSI-RS is notified by a high-level signaling to UE.
Embodiment 3-4
The present embodiment is the scene for configuring 1 for the initial sub-frame configuration of radio frames, as shown in figure 16.
One radio frames of TDD system include 10 subframes, also, the number of 10 subframes is successively subframe 0, subframe
1 ..., subframe 9.Wherein subframe 3 and subframe 8 are to be capable of the subframe of flexible configuration.
Within the previous configuration period, the sub-frame configuration of 64 radio frames is configuration 1, i.e., the frame structure of each radio frames
It is that subframe 3 and subframe 8 are sub-frame of uplink to DSUUDDSUUD in each radio frames within the previous configuration period.In this configuration
In period, it is downlink subframe that base station, which configures subframe 3 in each radio frames, and notifies UE within this period, subframe 0, subframe 3, son
Frame 4, subframe 5 and subframe 9 are downlink subframe, i.e., in this configuration period, the frame structure of 64 radio frames is DSUDDDSUUD.
Base station will not send CRS and/or CSI- in the subframe 3 of each radio frames in 64 radio frames by a high-level signaling
The information of RS is notified by a high-level signaling to UE.
Embodiment 3-5
The present embodiment is the scene for configuring 3 for the initial sub-frame configuration of radio frames, as shown in figure 17.
One radio frames of TDD system include 10 subframes, also, the number of 10 subframes is successively subframe 0, subframe
1 ..., subframe 9.Wherein subframe 3 and subframe 4 are to be capable of the subframe of flexible configuration.
Within the previous configuration period, the sub-frame configuration of 64 radio frames is configuration 3, i.e., the frame structure of each radio frames
It is DSUUUDDDDD, i.e., within the previous configuration period in each radio frames on subframe 3, subframe 4, subframe 8 and subframe 9 be
Row subframe.Within this configuration period, it is downlink subframe that base station, which configures subframe 3 and subframe 4 in each radio frames, wireless with what is postponed
The frame structure of frame is DSUDDDDDDD, i.e., the sub-frame configuration 5 that frame structure defines in existing standard.Base station is notified by high-level signaling
UE sub-frame configuration is the sub-frame configuration for configuring 5, UE and signaling to obtain this period according to this, i.e. this configuration period in this period
Interior, the frame structure of 64 radio frames is DSUDDDDDDD.
Base station will not send CRS in the subframe 3 and subframe 4 of each radio frames in 64 radio frames by a high-level signaling
And/or the information of CSI-RS is notified by a high-level signaling to UE.
Embodiment 3-6
The present embodiment is the scene for configuring 3 for the initial sub-frame configuration of radio frames, as shown in figure 18.
One radio frames of TDD system include 10 subframes, also, the number of 10 subframes is successively subframe 0, subframe
1 ..., subframe 9.Wherein subframe 3 and subframe 4 are to be capable of the subframe of flexible configuration.
Within the previous configuration period, the sub-frame configuration of 64 radio frames is configuration 3, i.e., the frame structure of each radio frames
It is DSUUUDDDDD, i.e., within the previous configuration period in each radio frames on subframe 3, subframe 4, subframe 8 and subframe 9 be
Row subframe.Within this configuration period, it is downlink subframe that base station, which configures subframe 4 in each radio frames, and notifies UE within this period,
Subframe 0, subframe 4, subframe 5, subframe 6, subframe 7, subframe 8 and subframe 9 are downlink subframe, i.e., in this configuration period, 64 wireless
The frame structure of frame is DSUUDDDDDD.
Base station will not send CRS and/or CSI- in the subframe 4 of each radio frames in 64 radio frames by a high-level signaling
The information of RS is notified by a high-level signaling to UE.
Embodiment 4
As shown in figure 19, the present invention provides a kind of management method of subframe in time-division duplex system, comprising:
Step 401, in the increase in demand for detecting downlink resource, base station reconfigures the ascending-descending subframes in radio frames
Position and number, and do not send public reference signal when the subframe for capableing of flexible configuration is configured to downlink subframe by base station
CRS and/or channel state information reference signals CSI-RS；
Step 402 will be originally intended to send public reference signal and/or channel state information with reference to letter in the downlink subframe
Number transfer resource send downlink service data.
By not sending CRS and/or CSI-RS signal in configurating downlink subframe, reduce the occupied money of metrical information
Source, effectively increases the transfer resource of transmission downlink data, and the ability that enhancing base station down data are sent reaches and makes full use of nothing
The purpose of line channel resource.
Those of ordinary skill in the art will appreciate that computer journey can be used in all or part of the steps of above-described embodiment
Sequence process realizes that the computer program can be stored in a computer readable storage medium, the computer program exists
(such as system, unit, device) executes on corresponding hardware platform, when being executed, include the steps that embodiment of the method it
One or combinations thereof.
Optionally, integrated circuit can be used also to realize in all or part of the steps of above-described embodiment, these steps can
To be fabricated to integrated circuit modules one by one respectively, or make multiple modules or steps in them to single integrated electricity
Road module is realized.In this way, the present invention is not limited to any specific hardware and softwares to combine.
Each device/functional module/functional unit in above-described embodiment, which can be adopted, is realized with general computing device realization, it
Can be concentrated on a single computing device, can also be distributed over a network of multiple computing devices.
Each device/functional module/functional unit in above-described embodiment realized in the form of software function module and as
Independent product when selling or using, can store in a computer readable storage medium.Computer mentioned above
Read/write memory medium can be read-only memory, disk or CD etc..
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any
Those familiar with the art in the technical scope disclosed by the present invention, can easily think of the change or the replacement, and should all contain
Lid is within protection scope of the present invention.Therefore, protection scope of the present invention should be subject to protection scope described in claim.
Claims (24)
1. the management method of subframe in a kind of TDD system characterized by comprising
Downlink subframe of the base station in radio frames does not send channel state information reference signals CSI-RS, or, base station is in radio frames
In downlink subframe do not send public reference signal CRS and CSI-RS.
2. the method according to claim 1, wherein the downlink subframe configures in the period one to institute for base station
State that be capable of the sub-frame configuration of flexible configuration in radio frames be to obtain after downlink subframe.
3. according to the method described in claim 2, it is characterized in that, the subframe for capableing of flexible configuration is in different configuration weeks
Be located at same position, and the subframe that signal transmission direction is different in the radio frames of phase, the signal transmission direction be uplink or under
Row does not transmit signal.
4. according to the method in claim 2 or 3, it is characterised in that:
The configuration period is the duration of n radio frames, and wherein n is the integer more than or equal to 1.
5. according to the method in claim 2 or 3, which is characterized in that user equipment (UE) includes matching by receiving one from base station
The high-level signaling for setting cycle information obtains the duration in configuration period, alternatively, UE obtains the configuration period from the broadcast message of base station
Duration.
6. according to the method described in claim 4, it is characterized by:
If the configuration period is the duration of multiple radio frames, positioned at identical in all radio frames in the same configuration period
The subframe for capableing of flexible configuration of position is all sub-frame of uplink or is all downlink subframe.
7. according to the method described in claim 2, it is characterized by:
Base station be configured within i-th of configuration period downlink subframe the subframe for capableing of flexible configuration and j-th of configuration period
The subframe for capableing of flexible configuration for being inside configured to downlink subframe is identical or different, and wherein i and j is the integer more than or equal to 1,
And i ≠ j.
8. the method according to claim 1, wherein UE is that obtained by following either type can in radio frames
The subframe of flexible configuration is downlink subframe:
Mode one: UE obtains the position of downlink subframe by receiving the high-level signaling of base station configuration；
Wherein, information entrained by the high-level signaling is a kind of new sub-frame configuration of base station notice UE, wherein new subframe is matched
It sets identical or different with the sub-frame configuration in previous configuration period；Alternatively, information entrained by the high-level signaling is to be used to indicate
The information of downlink subframe position；
Mode two: UE determines that current subframe is downlink subframe by blind Detecting.
9. according to the method described in claim 1, it is characterized by:
The downlink subframe for not sending CSI-RS or not sending CRS and CSI-RS is downlink of energy flexible configuration in the radio frames
It is some or all of in frame.
10. according to claim 1 or method described in 9, which is characterized in that the method also includes:
The base station sends one and is used to indicate in downlink subframe transmission CSI-RS or not in downlink subframe transmission CRS
High-level signaling with CSI-RS is to UE；Alternatively, base station is fixed CSI-RS is not sent in the downlink subframe or fixed not described
Downlink subframe sends CRS and CSI-RS.
11. according to the method described in claim 2, it is characterized by:
In the increase in demand for detecting downlink resource, base station reconfigures the position sum number of the ascending-descending subframes in radio frames
Mesh, and while not sending when the subframe for capableing of flexible configuration is configured to downlink subframe by base station CSI-RS or downlink subframe, is not sent out
Send CRS and CSI-RS.
12. the method according to claim 1, wherein the base station can will flexibly match in a configuration period
The sub-frame configuration set is after downlink subframe, further includes:
It will be originally intended to send CSI-RS in the downlink subframe or send the transfer resource transmission downlink business number of CRS and CSI-RS
According to.
13. the management system of subframe in a kind of TDD system, which is characterized in that including base station, wherein the base station is wrapped
It includes:
Configuration device does not send channel state information reference signals CSI-RS for configuring the downlink subframe in radio frames, or, matching
It sets the downlink subframe in radio frames and does not send public reference signal CRS and CSI-RS.
14. system according to claim 13, which is characterized in that the downlink subframe is that base station is right within a configuration period
It is capable of the sub-frame configuration of flexible configuration in the radio frames to obtain after downlink subframe.
15. system according to claim 14, which is characterized in that the subframe for capableing of flexible configuration is in different configurations
Be located at same position, and the subframe that signal transmission direction is different in the radio frames in period, the signal transmission direction be uplink or
Downlink does not transmit signal.
16. system according to claim 14 or 15, it is characterised in that:
The configuration period is the duration of n radio frames, and wherein n is the integer more than or equal to 1.
17. system according to claim 14 or 15, which is characterized in that the system also includes UE, wherein the UE, packet
It includes:
Reception device, for by from base station receive one include configuration cycle information high-level signaling obtain configuration the period when
It is long, alternatively, obtaining the duration in configuration period from the broadcast message of base station.
18. system according to claim 16, it is characterised in that:
If the configuration period is the duration of multiple radio frames, positioned at identical in all radio frames in the same configuration period
The subframe for capableing of flexible configuration of position is all sub-frame of uplink or is all downlink subframe.
19. system according to claim 14, it is characterised in that:
Base station be configured within i-th of configuration period downlink subframe the subframe for capableing of flexible configuration and j-th of configuration period
The subframe for capableing of flexible configuration for being inside configured to downlink subframe is identical or different, and wherein i and j is the integer more than or equal to 1,
And i ≠ j.
20. system according to claim 13, which is characterized in that further include UE, the UE includes:
Acquisition device, the subframe for obtaining capableing of flexible configuration in radio frames by following either type is downlink subframe:
Mode one: UE obtains the position of downlink subframe by receiving the high-level signaling of base station configuration；
Wherein, information entrained by the high-level signaling is a kind of new sub-frame configuration of base station notice UE, wherein new subframe is matched
It sets identical or different with the sub-frame configuration in previous configuration period；Alternatively, information entrained by the high-level signaling is to be used to indicate
The information of downlink subframe position；
Mode two: UE determines that current subframe is downlink subframe by blind Detecting.
21. system according to claim 13, it is characterised in that:
The downlink subframe for not sending CSI-RS or not sending CRS and CSI-RS is downlink of energy flexible configuration in the radio frames
It is some or all of in frame.
22. system described in 3 or 21 according to claim 1, which is characterized in that the base station further include:
It notifies device, is used to indicate for sending one in downlink subframe transmission CSI-RS or not in downlink subframe hair
Send the high-level signaling of CRS and CSI-RS to UE.
23. system according to claim 14, it is characterised in that:
The configuration device, in the increase in demand for detecting downlink resource, reconfiguring of the uplink and downlink in radio frames
The position of frame and number, and do not send when the subframe for capableing of flexible configuration is configured to downlink subframe by base station CSI-RS or under
CRS and CSI-RS are not sent when row subframe.
24. system according to claim 13, which is characterized in that the base station further include:
Sending device is connected with the configuration device, for will be originally intended to send CSI-RS in the downlink subframe or send CRS
Downlink service data is sent with the transfer resource of CSI-RS.
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| JP6704940B2 (en) | 2015-05-27 | 2020-06-03 | 華為技術有限公司Ｈｕａｗｅｉ Ｔｅｃｈｎｏｌｏｇｉｅｓ Ｃｏ．，Ｌｔｄ． | Downlink information transmission method, base station, and user equipment |
| US10476583B2 (en) * | 2015-08-13 | 2019-11-12 | Viasat, Inc. | Managed time division duplexed baseband signaling |
| US10958404B2 (en) | 2015-11-06 | 2021-03-23 | Qualcomm Incorporated | Discovery reference signal configuration and scrambling in licensed-assisted access |
| CN107231657A (en) * | 2016-03-24 | 2017-10-03 | 西安中兴新软件有限责任公司 | A kind of method for transmitting signals and device |
| EP3501221A4 (en) * | 2016-09-07 | 2020-04-15 | MediaTek Inc. | Dynamic tdd design, methods and apparatus thereof |
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| CN101926214A (en) * | 2008-03-24 | 2010-12-22 | 中兴通讯美国公司 | Dynamic adjustment and signaling of downlink/uplink allocation ratio in LTE/TDD systems |
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| CN103378963A (en) * | 2012-04-27 | 2013-10-30 | 北京三星通信技术研究有限公司 | Method and device for supporting TDD system to change duplex directions of subframes flexibly |
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| CN102223604B (en) * | 2010-04-16 | 2013-11-06 | 中兴通讯股份有限公司 | Subframe configuring method and system |
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| CN102196580A (en) * | 2011-06-22 | 2011-09-21 | 新邮通信设备有限公司 | Method for dynamically configurating TDD (Time Division Duplex) base station uplink and downlink subframe scale |
| CN103378963A (en) * | 2012-04-27 | 2013-10-30 | 北京三星通信技术研究有限公司 | Method and device for supporting TDD system to change duplex directions of subframes flexibly |
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