CN104025643A - Downlink transmission control method, user equipment, and network device - Google Patents
Downlink transmission control method, user equipment, and network device Download PDFInfo
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- CN104025643A CN104025643A CN201280007717.8A CN201280007717A CN104025643A CN 104025643 A CN104025643 A CN 104025643A CN 201280007717 A CN201280007717 A CN 201280007717A CN 104025643 A CN104025643 A CN 104025643A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/0091—Signaling for the administration of the divided path
- H04L5/0094—Indication of how sub-channels of the path are allocated
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0032—Distributed allocation, i.e. involving a plurality of allocating devices, each making partial allocation
- H04L5/0035—Resource allocation in a cooperative multipoint environment
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/10—Scheduling measurement reports ; Arrangements for measurement reports
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Abstract
Embodiments of the present invention relate to a downlink transmission control method, a user equipment, and a network device. The downlink transmission control method comprises: receiving at least two reference signals sent by a network device for measurement; acquiring at least two groups of channel statistics information according to the at least two reference signals for measurement; receiving control signaling sent by the network device, the control signal carrying information for indicating a reference signal for demodulation; and determining, from the at least two groups of channel statistics information, a group of channel statistics information corresponding to the information that is carried in the control signaling and is used for indicating the reference signal for demodulation. According to the embodiments of the present invention, channel statistics information used when a downlink signal is demodulated is notified to the UE through the information indicating the reference signal for demodulation, thereby saving signaling overhead.
Description
Downlink transmission control method, user equipment and technical field of network equipment
The present embodiments relate to wireless communication field, more specifically to downlink transmission control method, user equipment and the network equipment.Background technology
In current network service, employ heterogeneous network technologies and CoMP (Coordinated Multiple Point transmission/reception, coordinate multipoint transmission/reception) technology so that UE (User Equipment, user equipment）It may be communicated from the different network equipments.For example in heterogeneous network, the network equipment 1 and the network equipment 2 have different transmit powers, therefore a just different coverages of correspondence, and the coverage of the network equipment 1 covers the coverage of the network equipment 2.If UE2 is serviced by the network equipment 2, when the network equipment 2 sends a signal to UE2, if the network equipment 1 uses identical resource（Such as identical Physical Resource Block）UE1 is sent a signal to, because UE2 is same within the coverage of the network equipment 1, then the signal that the network equipment 1 is sent can cause strong jamming to the UE2 signals for receiving the network equipment 2.When the network equipment 2 sends a signal to UE2, strong jamming will not be caused to the UE2 signals for receiving the network equipment 2 if the network equipment 1 does not send signal.Therefore, for UE2, the strong jamming that there is the network equipment 1 has been occurred as soon as and in the absence of such strongly disturbing situation, because the interference of both of these case is different, two kinds of channel statistical informations is just corresponded to respectively.
Another example is that under CoMP scenes, the network equipment 1 and the network equipment 2 have different transmit powers, therefore a just different coverages of correspondence, and the coverage of the network equipment 1 covers the coverage of the network equipment 2.If at the first moment, the network equipment 1 sends downstream signal to UE and the network equipment 2 is not sent.At the second moment, the network equipment 2 sends downstream signal to UE and the network equipment 1 is not sent；Or, the network equipment 1 and the network equipment 2 send downstream signal to UE simultaneously.For these situations, due to the corresponding different transmission source of downstream signal that UE is received, different channel statistical informations are equally corresponded to.
In these application scenarios, the side for determining scheduling scheme is the network equipment, and the network equipment is not required to the scene residing for UE notifying UE, therefore UE is not aware that and use what channel statistical information to demodulate the downstream signal received.The content of the invention
The embodiment of the present invention proposes a kind of downlink transmission control method, and channel statistical information used in UE is indicated using reference for demodulation signal, can significantly save signaling consumption.
In a first aspect, the embodiment of the present invention proposes a kind of downlink transmission control method, methods described includes：Receive at least two reference signal for measuring that the network equipment is sent；
At least two groups channel statistical informations are obtained according to the reference signal that described at least two are used to measure；The control signaling that the network equipment is sent is received, wherein the control signaling carries the information for indicating reference for demodulation signal；
From at least two channel statistical information, it is determined that the corresponding one group of channel statistical information of the information of the instruction reference for demodulation signal with being carried in the control signaling.
With reference to first aspect, in the first possible implementation, described from least two channel statistical information, it is determined that before the corresponding channel statistical information of the information of the instruction reference for demodulation signal with being carried in the control signaling, methods described includes：
Obtain the corresponding relation of the information and the channel statistical information for indicating reference for demodulation signal；
It is described from least two groups channel statistical informations, it is determined that the corresponding one group of channel statistical information of the information of the instruction reference for demodulation signal with being carried in the control signaling, is specifically included：According to the corresponding relation, from least two groups channel statistical informations, it is determined that the corresponding one group of channel statistical information of the information of the instruction reference for demodulation signal with being carried in the control signaling.
It is described to obtain at least two groups channel statistical informations according to described at least two reference signals for being used to measure in second of possible implementation with reference to the first possible implementation of first aspect or first aspect, including：
Receive the first signaling that the network equipment is sent, wherein described first signaling carries the first configured information, and the reference signal that first configured information is used for instruction user equipment UE and is used to measure according to all or part of obtains at least two groups channel statistical informations.
With reference to first aspect or first and second kinds of possible implementations of first aspect, in the third possible implementation, first configured information is used to indicate that the UE is used to obtain the number of the reference signal for being used to measure used in the channel statistical information.
With reference to first aspect or first aspect first to the third possible implementation, in the 4th kind of possible implementation, the reference signal for being used to measure is numbered by signal identification, first signaling carries the second configured information, second configured information includes the signal identification, for indicating
It is used to the reference signal of measurement described in the signal identifications of the UE in second configured information is corresponding obtain the channel statistical information.
With reference to first aspect or first to fourth kind of possible implementation of first aspect, in the 5th kind of possible implementation, it is used for the corresponding relation of information and the reference signal for being used to measure for indicating reference for demodulation signal described in the acquisition, including：
The second signaling that the network equipment is sent is received, wherein second signaling carries the information for indicating the corresponding relation.
With reference to first aspect or first to the 5th kind of possible implementation of first aspect, in the 6th kind of possible implementation, it is used for the corresponding relation of information and the reference signal for being used to measure for indicating reference for demodulation signal described in the acquisition, including：
Obtain the corresponding relation for being used to indicate the information and the channel statistical information of reference for demodulation signal being preset in UE.
With reference to first aspect or first to the 6th kind of possible implementation of first aspect, in the 7th kind of possible implementation, described from least two groups channel statistical informations, it is determined that before the corresponding one group of channel statistical information of the information of the instruction reference for demodulation signal with being carried in the control signaling, methods described also includes：
Receive the 3rd signaling that the network equipment is sent, wherein described 3rd signaling includes enable instruction, wherein described enable instruction is used to indicate the UE from least two groups channel statistical informations, it is determined that the corresponding one group of channel statistical information of the information of the instruction reference for demodulation signal with being carried in the control signaling.
Second aspect, the embodiment of the present invention proposes a kind of downlink transmission control method, and methods described includes：At least two reference signals for being used to measure are sent to user equipment (UE), so that the UE obtains at least two groups channel statistical informations according to described at least two reference signals for being used to measure；
Sent control signaling to the UE, wherein described control signaling carries the information for indicating reference for demodulation signal, the wherein described information for indicating reference for demodulation signal is used to indicate the UE from least two groups channel statistical informations, it is determined that the corresponding one group of channel statistical information of the information of the instruction reference for demodulation signal with being carried in the control signaling.
With reference to second aspect, in the first possible implementation, it is described sent control signaling to the UE before, methods described also includes：
The first signaling is sent to the UE, wherein first signaling carries the first configured information, first configured information is used to indicate that the UE is used for the reference signal measured according to all or part of
Obtain at least two groups channel statistical informations.
With reference to the first possible implementation of second aspect or second aspect, in second of possible implementation, first configured information is used to indicate that the UE is used to obtain the number of the reference signal for being used to measure used in the channel statistical information.
With reference to second aspect or first and second kinds of possible implementations of second aspect, in the third possible implementation, methods described also includes：
The second signaling is sent to the UE, wherein second signaling carries the 3rd information, the 3rd information is used for corresponding relation of the information with the channel statistical information for indicating reference for demodulation signal.
With reference to second aspect or second aspect first to the third possible implementation, in the 4th kind of possible implementation, it is described send the second signaling to the UE before, methods described also includes：The 3rd signaling is sent to the UE, wherein described 3rd signaling includes enable instruction, wherein the enable instruction obtains the channel statistical information for the 3rd information for indicating the UE receptions second signaling and being carried according to second signaling.
The third aspect, the embodiment of the present invention proposes a kind of user equipment, and the user equipment includes：Receiving unit, for receiving at least two of the network equipment transmission reference signals for being used to measure；Acquiring unit, for obtaining at least two groups channel statistical informations according to described at least two reference signals for being used to measure；
The receiving unit is additionally operable to receive the control signaling that the network equipment is sent, wherein the control signaling carries the information for indicating reference for demodulation signal；
Determining unit, for from least two channel statistical information, it is determined that the corresponding one group of channel statistical information of the information of the instruction reference for demodulation signal with being carried in the control signaling.
With reference to the third aspect, in the first possible implementation, the acquiring unit is additionally operable to obtain the information and the corresponding relation of the channel statistical information of the instruction reference for demodulation signal,
The determining unit is additionally operable to according to the corresponding relation, from least two groups channel statistical informations, it is determined that the corresponding one group of channel statistical information of the information of the instruction reference for demodulation signal with being carried in the control signaling.
Fourth aspect, the embodiment of the present invention proposes a kind of network equipment, and the network equipment includes：Transmitting element, for sending the reference signal for being at least used to measure to user equipment (UE), so that the UE obtains at least two groups channel statistical informations according to described at least two reference signals for being used to measure；The transmitting element is additionally operable to send control signaling to the UE, wherein the control signaling carries the information for indicating reference for demodulation signal, wherein the information for indicating reference for demodulation signal
For indicating the UE from least two groups channel statistical informations, it is determined that the corresponding one group of channel statistical information of the information of the instruction reference for demodulation signal with being carried in the control signaling；
Processing unit, for determining to indicate the information of reference for demodulation signal and the corresponding relation of the channel statistical information,
The transmitting element is additionally operable to send the second signaling to the UE, wherein second signaling carries the 3rd information, the 3rd information is used for corresponding relation of the information with the channel statistical information for indicating the reference for demodulation signal.
According to embodiments of the present invention, by indicating the information of reference for demodulation signal, channel statistical information used, saves signaling consumption when notifying demodulation downstream signal to UE.Brief description of the drawings
Technical scheme in order to illustrate the embodiments of the present invention more clearly, cylinder will be made to the required accompanying drawing used in embodiment or description of the prior art below singly to introduce, apparently, drawings in the following description are only some embodiments of the present invention, for those of ordinary skill in the art, on the premise of not paying creative work, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is the schematic flow diagram of downlink transmission control method according to embodiments of the present invention；
Fig. 2 is the schematic flow diagram of method according to embodiments of the present invention；
Fig. 3 is the schematic configuration diagram of user equipment according to embodiments of the present invention；
Fig. 4 is the schematic configuration diagram of the network equipment according to embodiments of the present invention.Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is a part of embodiment of the invention, rather than whole embodiments.Based on the embodiment in the present invention, the every other embodiment that those of ordinary skill in the art are obtained under the premise of creative work is not made belongs to the scope of protection of the invention.
In embodiments of the present invention, base station (Base Station, cylinder claims BS), access point be can be implemented as to the UE network equipments for sending downstream signal（Access Point, cylinder claims AP), far-end wireless device (Remote Radio Equipment, cylinder claims RRE), distal end radio port（Remote Radio Head, cylinder claims RRH), remote radio units（Remote Radio Unit, cylinder claims RRU), via node（Relay node) etc..The relation of the network equipment and cell is not limited, and can be the one or more cells of network equipment correspondence or the one or more network equipments of cell correspondence.
Fig. 1 is the schematic flow diagram of downlink transmission control method according to embodiments of the present invention.As shown in figure 1, method 100 includes：
110:Receive at least two reference signal for measuring that the network equipment is sent；
120:At least two groups channel statistical informations are obtained according to the reference signal that described at least two are used to measure；
130:The control signaling that the network equipment is sent is received, wherein the control signaling carries the information for indicating reference for demodulation signal；
140:From at least two groups channel statistical informations, it is determined that the corresponding one group of channel statistical information of the information of the instruction reference for demodulation signal with being carried in the control signaling.In signal demodulating process, UE needs the reference signal for being used to measure sent according to the network equipment to obtain channel statistical information.
The reference signal for being used to measure described here is for example including CSI-RS (Channel Status Information Reference Signal, channel state information reference signals), CRS (Common Reference Signal, public reference signal）Deng the embodiment of the present invention is not limited the reference signal for measurement.In describing below, illustrated as an example with CSI-RS.
Channel statistical information described here, can include delay spread information, Doppler spread information, timing offset information, frequency offset information, Signal to Interference plus Noise Ratio information, interference covariance information and power language information of channel etc..In the demodulating process of downstream signal, at least one of item of these channel statistical informations may be according to circumstances needed to use.It will be understood by those skilled in the art that can obtain one group of channel statistical information according to a measuring reference signals, this group of channel statistical information can include at least one of these above-mentioned channel statistical informations.
Reference for demodulation signal described here is for example including DMRS (Demodulation Reference Signal, demodulated reference signal), CRS (Common Reference Signal, public reference signal）Deng of the invention reference for demodulation signal not to be limited.In the following description, illustrated by taking DMRS as an example.
After UE receives multiple CSI-RS, voluntarily all or part of CSI-RS can be measured, to obtain multigroup channel statistical information.
Alternatively, UE can measure CSI-RS according to the instruction of the network equipment, to obtain multigroup channel statistical information.For example, step 120 can be implemented as：UE receives the first signaling that the network equipment is sent, wherein the first signaling carries the first configured information, first configured information is used to indicate UE roots
At least two groups channel statistical informations are obtained according to all or part of reference signal for being used to measure.For example, UE receives 3 CSI-RS of network equipment transmission, the first configured information that then UE is received in the first signaling that the network equipment is sent, the first signaling indicates UE measurements all 3 CSI-RS, to obtain 3 groups of channel statistical informations；Or indicate that UE measures 2 CSI-RS, to obtain 2 groups of channel statistical informations.
Optionally, under a kind of application scenarios, the reference signal for being used to measure that UE is received is numbered by signal identification, and such as UE receives 4 CSI-RS, represents this four CSI-RS using 00,01,10,11 as signal identification respectively.In this case, the second configured information can be included in first signaling, second configured information includes the signal identification, and the channel statistical information is obtained for indicating the corresponding reference signal for being used for measurement of the signal identifications of the UE in second configured information.For example, the second configured information can include signal identification 00,11, represent that the network equipment indicates UE by measuring the 1st and the 4th CSI-RS to obtain channel statistical information.
Hereafter, when needing to be demodulated downstream signal, in step 130, UE receives the control signaling of network equipment transmission, the control signaling carries the information for indicating reference for demodulation signal, and such as control signaling carries the information for indicating DMRS.According to embodiments of the present invention, the information for indicating DMRS can be PDCCH (the Physical Downlink Control Channel, Physical Downlink Control Channel that the network equipment is sent to UE）Included in DMRS bits value.The value of the bit for example can serve to indicate that UE according to the default initial value for calculating DMRS sequence or the parameter for determining initialization value.UE can utilize default sequence to calculate DMRS according to the values of DMRS bits.
In embodiments of the present invention, for indicating that the information of reference for demodulation signal is additionally operable to notice
UE demodulates the channel statistical information that should be used during downstream signal.For example, UE can be according to another default formula, according to the information for indicating reference for demodulation signal, for example according to the value of DMRS bits in PDCCH, from at least two groups channel statistical informations, it is determined that the corresponding one group of channel statistical information of the information of the instruction reference for demodulation signal with being carried in the control signaling, such as determine one group of channel statistical information corresponding with the value of DMRS bits.
Alternatively, for indicating that the information of reference for demodulation signal and the corresponding relation of the channel statistical information can be preset in the network equipment and UE, such as value of DMRS bits and CSI-RS corresponding relation are default in the network device, the corresponding relation for indicating the information of reference for demodulation signal and the reference signal for being used to measure is known, it is possible to know the corresponding channel statistical information of information of the instruction reference for demodulation signal with being carried in the control signaling.For example, when DMRS bits value is 0, represent to obtain channel statistical information using first CSI-RS, and
DMRS bits value is that 1 expression obtains channel statistical information using second CSI-RS.
Alternatively, the network equipment can notify the UE corresponding relations by signaling.In this case, before step 140, UE can receive the second signaling of network equipment transmission, wherein second signaling carries the information for indicating the corresponding relation.For example, the information for indicating the corresponding relation can be the value of 1 indication bit, such as indication bit value is 0, when expression DMRS bits value is 0, channel statistical information is obtained using first CSI-RS, and DMRS bits value obtains channel statistical information when being 1 using second CSI-RS；And the indication bit value is 1, when to represent DMRS bits values be 0, channel statistical information is obtained using the 2nd CSI-RS, and DMRS bits value obtains channel statistical information when being 1 using the 1st CSI-RS.
According to embodiments of the present invention, due to the change and infrequently of network structure, thereby indicate that the corresponding relation between DMRS information and CSI-RS, the channel statistical information corresponding to the value of DMRS bits need not frequently change in other words, i.e. above-mentioned first, second signaling need not frequently be sent, but be multiplexed the DMRS bits in PDCCH to determine to demodulate the channel statistical information used in downstream signal, it save considerably signaling consumption.
Alternatively, the network equipment can use the method 100 of the embodiment of the present invention by signaling UE, or not use this method.Method 100 can include step：UE receives the 3rd signaling that the network equipment is sent, wherein described 3rd signaling includes enable instruction, wherein described enable instruction is used to indicate the UE from least two groups channel statistical informations, it is determined that the corresponding channel statistical information of the information of the instruction reference for demodulation signal with being carried in the control signaling.
For example in specific application scenarios, for the heterogeneous network that background section example is stated, the network equipment 2 can send 2 groups of CSI-RS to UE, (network equipment 1 also sends signal to wherein the 1st group corresponding strongly disturbing Τ (Transmission Time Interval, Transmission Time Interval) by the network equipment 1 in these Τ）；By the strongly disturbing Τ of the network equipment 1, (network equipment 1 does not send signal to 2nd group of correspondence in these Τ）.UE is able to obtain by strong jamming and not by two groups of channel statistical informations in strongly disturbing scene according to this 2 groups of CSI-RS.So, the network equipment 2 sends PDCCH to UE, when indicating DMRS information for UE, it can also indicate that UE uses the 1st or the 2nd group of corresponding channel statistical information of CSI-RS by instruction DMRS information, if such as network equipment 2 sends PDCCH in n-th of TTI to UE, in the TTI, the network equipment 1 also send signal, therefore the network equipment 2 can just indicate that UE uses the 1st group of corresponding channel statistical information of CSI-RS, i.e. channel statistical information in the case of strong jamming in the DMRS information that PDCCH includes；If the network equipment 2 sends PDCCH, in the Τ, network in (n+1)th Τ to UE
Equipment 1 does not send signal, therefore the network equipment 2 can just indicate UE using the 2nd group of corresponding channel statistical information of CSI-RS in the DMRS configured informations that PDCCH includes, i.e., in the absence of the channel statistical information in the case of strongly disturbing.Thus, by the method for the embodiment of the present invention, ensure that UE and PDSCH (Physical Downlink Shared Channel, Physical Downlink Shared Channel that the network equipment 2 is sent are demodulated using suitable channel statistical information）, so as to ensure that demodulation performance.
Again for example for the CoMP scenes that example in background technology is stated, the network equipment can send 2 groups of CSI-RS to UE, wherein the 1st group is sent from the network equipment 1 to UE, the 2nd group is sent from the network equipment 2 to UE.If the network equipment 1 sends PDSCH in n-th of Τ to UE, therefore just DMRS information can be utilized to indicate that UE uses the 1st group of corresponding channel statistical information of CSI-RS in PDCCH；If the network equipment 2 sends PDSCH in n-th of Τ to UE, therefore just DMRS information can be utilized to indicate that UE uses the 2nd group of corresponding channel statistical information of CSI-RS in PDCCH.Thus, by the method for the embodiment of the present invention, ensure that UE and the PDSCH that the network equipment is sent is demodulated using suitable channel statistical information, so as to ensure that demodulation performance.Or, the network equipment can send 2 groups of CSI-RS to UE, wherein the 1st group is sent from the network equipment 1 to UE, the 2nd group is sent to UE jointly from the network equipment 1 and the network equipment 2.If the network equipment 1 sends PDSCH in n-th of Τ to UE, DMRS information can be utilized to indicate that UE uses the 1st group of corresponding channel statistical information of CSI-RS in PDCCH；If the network equipment 1 and the network equipment 2 send PDSCH in n-th of TTI to UE, therefore just DMRS information can be utilized to indicate that UE uses the 2nd group of corresponding channel statistical information of CSI-RS in PDCCH.Thus, the PDSCH that the network equipment is sent is demodulated using suitable channel condition information with it, ensuring that UE, so as to ensure that demodulation performance.
Above is from UE angle, the method for illustrating the embodiment of the present invention implements process.Below from the angle of the network equipment, the method that the embodiment of the present invention is expanded on further implements process.
Fig. 2 is the schematic flow diagram of method according to embodiments of the present invention.As shown in Fig. 2 method 200 includes：
210:At least two reference signals for being used to measure are sent to user equipment (UE), so that the UE obtains at least two groups channel statistical informations according to described at least two reference signals for being used to measure；
220:Sent control signaling to the UE, wherein described control signaling carries the information for indicating reference for demodulation signal, the wherein described information for indicating reference for demodulation signal is used to indicate the UE from least two groups channel statistical informations, it is determined that the corresponding one group of channel statistical information of the information of the instruction reference for demodulation signal with being carried in the control signaling.
According to embodiments of the present invention, it is described sent control signaling to the UE before, methods described 200 also includes：
The first signaling is sent to the UE, wherein first signaling carries the first configured information, first configured information is used to indicate that reference signals of the UE for measuring according to all or part of obtains at least two groups channel statistical informations.
According to embodiments of the present invention, first configured information is used to indicate that the UE is used to obtain the number of the reference signal for being used to measure used in the channel statistical information.
According to embodiments of the present invention, the reference signal for being used to measure is numbered by signal identification, first signaling carries the second configured information, second configured information includes the signal identification, and the channel statistical information is obtained for indicating the UE ^ according to the corresponding reference signal for being used to measure of the signal identification in second configured information.
According to embodiments of the present invention, methods described 200 also includes：
The second signaling is sent to the UE, wherein second signaling carries the 3rd information, the 3rd information is used for corresponding relation of the information with the channel statistical information for indicating reference for demodulation signal.
According to embodiments of the present invention, before second signaling of transmission to the UE, methods described 200 also includes：
The 3rd signaling is sent to the UE, wherein described 3rd signaling includes enable instruction, wherein being used to indicating that the UE to receive second signaling and the 3rd information that is carried according to second signaling obtains the channel statistical information in the enable instruction.
According to embodiments of the present invention, the reference signal for being used to measure includes channel state information reference signals CSI-RS or public reference signal CRS.
According to embodiments of the present invention, the reference for demodulation signal includes demodulated reference signal DMRS or public reference signal CRS.
According to embodiments of the present invention, the information for being used to indicate reference for demodulation signal includes generation according to embodiments of the present invention, and the channel statistical information includes at least one of following：Delay spread information, Doppler spread information, timing offset information, frequency offset information, Signal to Interference plus Noise Ratio information, interference covariance information and the power language information of channel.
According to embodiments of the present invention, by indicating the information of reference for demodulation signal, channel statistical information used, saves signaling consumption when notifying demodulation downstream signal to UE.
The embodiment of the present invention also proposed the user equipment and network for realizing the inventive method embodiment
Equipment.
Fig. 3 is the schematic configuration diagram of user equipment according to embodiments of the present invention.As shown in figure 3, user equipment 300 includes：
Receiving unit 310, for receiving at least two of the network equipment transmission reference signals for being used to measure；Acquiring unit 320, for obtaining at least two groups channel statistical informations according to described at least two reference signals for being used to measure；
The receiving unit 310 is additionally operable to receive the control signaling that the network equipment is sent, wherein the control signaling carries the information for indicating reference for demodulation signal；
Determining unit 330, for from least two channel statistical information, it is determined that the corresponding one group of channel statistical information of the information of the instruction reference for demodulation signal with being carried in the control signaling.
According to embodiments of the present invention, the acquiring unit 320 is additionally operable to obtain the information and the corresponding relation of the channel statistical information of the instruction reference for demodulation signal,
The determining unit 330 is additionally operable to according to the corresponding relation, from least two groups channel statistical informations, it is determined that the corresponding one group of channel statistical information of the information of the instruction reference for demodulation signal with being carried in the control signaling.
According to embodiments of the present invention, the acquiring unit 320 is additionally operable to receive the first signaling that the network equipment is sent, wherein described first signaling carries the first configured information, and the reference signal that first configured information is used for instruction user equipment UE and is used to measure according to all or part of obtains at least two groups channel statistical informations.
According to embodiments of the present invention, first configured information is used to indicate that the UE is used to obtain the number of the reference signal for being used to measure used in the channel statistical information.
According to embodiments of the present invention, the reference signal for being used to measure is numbered by signal identification, first signaling carries the second configured information, second configured information includes the signal identification, and the channel statistical information is obtained for indicating the UE ^ according to the corresponding reference signal for being used to measure of the signal identification in second configured information.
According to embodiments of the present invention, the acquiring unit 320 is additionally operable to receive the second signaling that the network equipment is sent, wherein second signaling carries the information for indicating the corresponding relation.
According to embodiments of the present invention, the acquiring unit 320 is additionally operable to obtain corresponding relation of the information with the channel statistical information for the instruction reference for demodulation signal being preset in UE.
According to embodiments of the present invention, the determining unit 330 is additionally operable to receive the network equipment is sent the 3rd
Signaling, wherein described 3rd signaling includes enable instruction, wherein described enable instruction is used to indicate the UE from least two groups channel statistical informations, it is determined that the corresponding one group of channel statistical information of the information of the instruction reference for demodulation signal with being carried in the control signaling.
Fig. 4 is the schematic configuration diagram of the network equipment according to embodiments of the present invention.As shown in figure 4, the network equipment 400 includes：
Transmitting element 410, for sending the reference signal for being at least used to measure to user equipment (UE), so that the UE obtains at least two groups channel statistical informations according to described at least two reference signals for being used to measure；
The transmitting element 410 is additionally operable to send control signaling to the UE, wherein described control signaling carries the information for indicating reference for demodulation signal, the wherein described information for indicating reference for demodulation signal is used to indicate the UE from least two groups channel statistical informations, it is determined that the corresponding one group of channel statistical information of the information of the instruction reference for demodulation signal with being carried in the control signaling；Processing unit 420, for determining to indicate the information of reference for demodulation signal and the corresponding relation of the channel statistical information,
The transmitting element 410 is additionally operable to send the second signaling to the UE, wherein second signaling carries the 3rd information, the 3rd information is used for corresponding relation of the information with the channel statistical information for indicating the reference for demodulation signal.In the corresponding relation.
According to embodiments of the present invention, the transmitting element 410 is additionally operable to send the first signaling to the UE, wherein described first signaling carries the first configured information, and first configured information is used to indicate that reference signals of the UE for measuring according to all or part of obtains at least two groups channel statistical informations.
According to embodiments of the present invention, the transmitting element 410 is additionally operable to send the 3rd signaling to the UE, wherein described 3rd signaling includes enable instruction, wherein the enable instruction obtains the channel statistical information for the 3rd information for indicating the UE receptions second signaling and being carried according to second signaling.
Fig. 5 is a kind of structural representation of user equipment provided in an embodiment of the present invention.As illustrated, user equipment 500-as include at least one processor 510, such as CPU, at least one port 520, memory 530, and at least one communication bus 540.Communication bus 540 is used to realize the connection communication between these devices.Processor 510 is used to perform the executable module stored in memory 530, such as computer program；User equipment optionally includes user interface 550, including but not limited to display, key
Disk and pointing device, such as mouse, trace ball（Trackball), touch-sensitive plate or touch sensitive display screen.Memory 530 may include high-speed RAM memory, it is also possible to also including nonvolatile memory (non-volatile memory), for example, at least one magnetic disk storage.The communication connection of the user equipment and at least one network equipment is realized by least one port 520.
In some embodiments, memory 530 stores following element, can perform module either data structure or their subset, or their superset：
Operating system 532, comprising various system programs, for realizing various basic businesses and handling hardware based task；
Application module 534, comprising various application programs, for realizing various applied business.
Include but is not limited to receiving unit in application module 534（310), acquiring unit（320), determining unit (330).
The corresponding units implemented in embodiment shown in Figure 3 of each unit, will not be described here in application module 532.
Fig. 6 is a kind of structural representation of the network equipment provided in an embodiment of the present invention.As illustrated, the network equipment 600-as include at least one processor 610, such as CPU, at least one port 620, memory 630, and at least one communication bus 640.Communication bus 640 is used for the computer program for realizing these devices；User equipment optionally includes user interface 650, including but not limited to display, keyboard and pointing device, such as mouse, trace ball（Trackball), touch-sensitive plate or touch sensitive display screen.Memory 630 may include high-speed RAM memory, it is also possible to also including nonvolatile memory
(non-volatile memory), for example, at least one disk person's of depositing device.The communication connection of the network equipment and at least one user equipment is realized by least one port 620.
In some embodiments, memory 630 stores following element, can perform module either data structure or their subset, or their superset：
Operating system 632, comprising various system programs, for realizing various basic businesses and handling hardware based task；
Application module 634, comprising various application programs, for realizing various applied business.
Include but is not limited to transmitting element in application module 634（410), processing unit（420 ) .The corresponding units implemented in embodiment shown in Figure 4 of each unit, will not be described here in application module 632.
Those of ordinary skill in the art are it is to be appreciated that with reference to each of the embodiments described herein description
The unit and algorithm steps of example, can be realized with the combination of electronic hardware or computer software and electronic hardware.These functions are performed with hardware or software mode actually, depending on the application-specific and design constraint of technical scheme.Professional and technical personnel can realize described function to each specific application using distinct methods, but this realization is it is not considered that beyond the scope of this invention.
It is apparent to those skilled in the art that, the specific work process of the system of foregoing description, device and unit clean for the convenience and cylinder of description may be referred to the corresponding process in preceding method embodiment, will not be repeated here.
In several embodiments provided herein, it should be understood that disclosed systems, devices and methods, it can realize by another way.For example, device embodiment described above is only schematical, for example, the division of the unit, it is only a kind of division of logic function, there can be other dividing mode when actually realizing, such as multiple units or component can combine or be desirably integrated into another system, or some features can be ignored, or do not perform.Another, it, by some interfaces, the INDIRECT COUPLING or communication connection of device or unit, can be electrical, machinery or other forms that shown or discussed coupling or direct-coupling or communication connection each other, which can be,.
The unit illustrated as separating component can be or may not be physically separate, and the part shown as unit can be or may not be physical location, you can with positioned at a place, or can also be distributed on multiple NEs.Some or all of unit therein can be selected to realize the purpose of this embodiment scheme according to the actual needs.
In addition, each functional unit in each of the invention embodiment can be integrated in a processing unit or unit is individually physically present, can also two or more units it is integrated in a unit.
If the function is realized using in the form of SFU software functional unit and as independent production marketing or in use, can be stored in a computer read/write memory medium.Understood based on such, the part or the part of the technical scheme that technical scheme substantially contributes to prior art in other words can be embodied in the form of software product, the computer software product is stored in a storage medium, including some instructions are to cause a computer equipment（Can be personal computer, server, or network equipment etc.）Perform all or part of step of each embodiment methods described of the invention.And foregoing storage medium includes：USB flash disk, mobile hard disk, read-only storage（ROM, Read-Only Memory), random access memory（RAM, Random Access Memory), magnetic disc or CD etc. are various can be with the medium of store program codes.
The foregoing is only a specific embodiment of the invention, but protection scope of the present invention is not limited to
In this, any one skilled in the art the invention discloses technical scope in, change or replacement can be readily occurred in, should be all included within the scope of the present invention.Therefore, protection scope of the present invention described should be defined by scope of the claims.
Claims (25)
- Claim1. a kind of downlink transmission control method, it is characterised in that methods described includes：Receive at least two reference signal for measuring that the network equipment is sent；At least two groups channel statistical informations are obtained according to the reference signal that described at least two are used to measure；The control signaling that the network equipment is sent is received, wherein the control signaling carries the information for indicating reference for demodulation signal；From at least two channel statistical information, it is determined that the corresponding one group of channel statistical information of the information of the instruction reference for demodulation signal with being carried in the control signaling.2. the method as described in claim 1, it is characterized in that, described from least two channel statistical information, it is determined that before the corresponding channel statistical information of the information of the instruction reference for demodulation signal with being carried in the control signaling, methods described includes：Obtain the corresponding relation of the information and the channel statistical information for indicating reference for demodulation signal；It is described from least two groups channel statistical informations, it is determined that the corresponding one group of channel statistical information of the information of the instruction reference for demodulation signal with being carried in the control signaling, is specifically included：According to the corresponding relation, from least two groups channel statistical informations, it is determined that the corresponding one group of channel statistical information of the information of the instruction reference for demodulation signal with being carried in the control signaling.3. method as claimed in claim 1 or 2, it is characterised in thatIt is described to obtain at least two groups channel statistical informations according to described at least two reference signals for being used to measure, including：Receive the first signaling that the network equipment is sent, wherein described first signaling carries the first configured information, and the reference signal that first configured information is used for instruction user equipment UE and is used to measure according to all or part of obtains at least two groups channel statistical informations.4. method as claimed in claim 3, it is characterised in thatFirst configured information is used to indicate that the UE is used to obtain the number of the reference signal for being used to measure used in the channel statistical information.5. method as claimed in claim 3, it is characterised in thatThe reference signal for being used to measure is numbered by signal identification, first signaling carries the second configured information, second configured information includes the signal identification, is obtained for indicating the corresponding reference signal for being used for measurement of the signal identifications of the UE in second configured information The channel statistical information.6. method as claimed in claim 2, it is characterised in thatIt is used for the corresponding relation of information and the reference signal for being used to measure for indicating reference for demodulation signal described in the acquisition, including：The second signaling that the network equipment is sent is received, wherein second signaling carries the information for indicating the corresponding relation.7. method as claimed in claim 2, it is characterised in thatIt is used for corresponding relation of the information with the channel statistical information for indicating reference for demodulation signal described in the acquisition, including：Obtain the corresponding relation for being used to indicate the information and the channel statistical information of reference for demodulation signal being preset in UE.8. the method as described in any one of claim 1 to 5, it is characterised in thatDescribed from least two groups channel statistical informations, it is determined that before the corresponding one group of channel statistical information of the information of the instruction reference for demodulation signal with being carried in the control signaling, methods described also includes：Receive the 3rd signaling that the network equipment is sent, wherein described 3rd signaling includes enable instruction, wherein described enable instruction is used to indicate the UE from least two groups channel statistical informations, it is determined that the corresponding one group of channel statistical information of the information of the instruction reference for demodulation signal with being carried in the control signaling.9. the method as described in any one of claim 1 to 8, it is characterised in thatThe reference signal for being used to measure includes channel state information reference signals CSI-RS or public reference signal CRS.10. the method as described in any one of claim 1 to 9, it is characterised in thatThe reference for demodulation signal includes demodulated reference signal DMRS or public reference signal CRS.11. method as claimed in claim 10, it is characterised in thatThe information for being used to indicate reference for demodulation signal includes the initialization value of sequence used in generation DMRS or determines the parameter of the initialization value.12. the method as described in any one of claim 1 to 11, it is characterised in that the channel statistical information includes at least one of following：Delay spread information, Doppler spread information, timing offset information, frequency offset information, Signal to Interference plus Noise Ratio information, interference covariance information and the power language information of channel.13. a kind of downlink transmission control method, it is characterised in that methods described includes：At least two reference signals for being used to measure are sent to user equipment (UE), so that the UE obtains at least two groups channel statistical informations according to described at least two reference signals for being used to measure；Sent control signaling to the UE, wherein described control signaling carries the information for indicating reference for demodulation signal, the wherein described information for indicating reference for demodulation signal is used to indicate the UE from least two groups channel statistical informations, it is determined that the corresponding one group of channel statistical information of the information of the instruction reference for demodulation signal with being carried in the control signaling.14. method as claimed in claim 13, it is characterised in thatIt is described sent control signaling to the UE before, methods described also includes：The first signaling is sent to the UE, wherein first signaling carries the first configured information, first configured information is used to indicate that reference signals of the UE for measuring according to all or part of obtains at least two groups channel statistical informations.15. method as claimed in claim 14, it is characterised in thatFirst configured information is used to indicate that the UE is used to obtain the number of the reference signal for being used to measure used in the channel statistical information.16. method as claimed in claim 14, it is characterised in thatThe reference signal for being used to measure is numbered by signal identification, first signaling carries the second configured information, second configured information includes the signal identification, and the channel statistical information is obtained for indicating the corresponding reference signal for being used for measurement of the signal identifications of the UE in second configured information.17. the method as described in claim 13 or 14, it is characterised in that methods described also includes：The second signaling is sent to the UE, wherein second signaling carries the 3rd information, the 3rd information is used for corresponding relation of the information with the channel statistical information for indicating reference for demodulation signal.18. method as claimed in claim 17, it is characterised in thatBefore second signaling of transmission to the UE, methods described also includes：The 3rd signaling is sent to the UE, wherein described 3rd signaling includes enable instruction, wherein the enable instruction obtains the channel statistical information for the 3rd information for indicating the UE receptions second signaling and being carried according to second signaling.19. the method as described in any one of claim 13 to 18, it is characterised in thatThe reference signal for being used to measure includes channel state information reference signals CSI-RS or public reference signal CRS.20. the method as described in any one of claim 13 to 19, it is characterised in thatThe reference for demodulation signal includes demodulated reference signal DMRS or public reference signal CRS.21. method as claimed in claim 20, it is characterised in thatThe information for indicating reference for demodulation signal includes the initialization value of sequence used in generation DMRS or determines the parameter of the initialization value.22. the method as described in any one of claim 13 to 21, it is characterised in that the channel statistical information includes at least one of following：Delay spread information, Doppler spread information, timing offset information, frequency offset information, Signal to Interference plus Noise Ratio information, interference covariance information and the power language information of channel.23. a kind of user equipment, it is characterised in that the user equipment includes：Receiving unit, for receiving at least two of the network equipment transmission reference signals for being used to measure；Acquiring unit, for obtaining at least two groups channel statistical informations according to described at least two reference signals for being used to measure；The receiving unit is additionally operable to receive the control signaling that the network equipment is sent, wherein the control signaling carries the information for indicating reference for demodulation signal；Determining unit, for from least two groups channel statistical informations, it is determined that the corresponding one group of channel statistical information of the information of the instruction reference for demodulation signal with being carried in the control signaling.24. user equipment as claimed in claim 20, it is characterised in thatThe acquiring unit is additionally operable to obtain the information and the corresponding relation of the channel statistical information of the instruction reference for demodulation signal,The determining unit is additionally operable to according to the corresponding relation, from least two groups channel statistical informations, it is determined that the corresponding one group of channel statistical information of the information of the instruction reference for demodulation signal with being carried in the control signaling.25. a kind of network equipment, it is characterised in that the network equipment includes：Transmitting element, for sending the reference signal for being at least used to measure to user equipment (UE), so that the UE obtains at least two groups channel statistical informations according to described at least two reference signals for being used to measure；The transmitting element is additionally operable to send control signaling to the UE, wherein described control signaling carries the information for indicating reference for demodulation signal, the wherein described information for indicating reference for demodulation signal is used to indicate the UE from least two groups channel statistical informations, it is determined that the corresponding one group of channel statistical information of the information of the instruction reference for demodulation signal with being carried in the control signaling；Processing unit, for determining to indicate that the information of reference for demodulation signal is believed with the channel statistical The corresponding relation of breath,The transmitting element is additionally operable to send the second signaling to the UE, wherein second signaling carries the 3rd information, the 3rd information is used for corresponding relation of the information with the channel statistical information for indicating the reference for demodulation signal.
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