CN106034360A - Multi-user superposition transmission method and apparatus thereof - Google Patents
Multi-user superposition transmission method and apparatus thereof Download PDFInfo
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Abstract
The invention discloses a multi-user superposition transmission method and an apparatus thereof. In an embodiment, the method comprises the following steps that step 1, UE receives a first signaling and respectively receives K1 dynamic signalings according to K1 groups of auxiliary information, wherein the K1 groups of auxiliary information are indicated by the first signaling, and the K1 groups of auxiliary information correspond to the K1 dynamic signaling respectively; step 2, according to scheduling information in the K1 dynamic signalings, receiving K1 wireless signals respectively, and according to scheduling information of the first signaling, receiving a first wireless signal, wherein a time-frequency resource occupied by each wireless signal of the K1 wireless signals is completely or partially superimposed with a time-frequency resource occupied by the first wireless signal. In the invention, a condition of repeated transmissions of the same group of scheduling information is avoided, and an air-interface resource is saved. In addition, a number of times of performing BD by the UE is reduced.
Description
Technical field
The present invention relates to the scheme of dispatch in wireless communication system, particularly relate to based on for a long time
Evolution (LTE-Long Term Evolution) for multi-user's superposition (Superposition)
The method and apparatus of descending scheduling signaling.
Background technology
Traditional 3GPP (3rd Generation Partner Project, third generation affiliate
Project) in cellular system, the downstream wireless signals of multi-user is by { TDM (Time Division
Multiplexing, time division multiplex), FDM (Frequency Division Multiplexing,
Frequency division multiplexing), CDM (Code Division Multiplexing, code division multiplexing) in one
Plant or various ways realizes.3GPP R (Release, version) 13 introduces one newly
Research topic (RP-150496), i.e. descending multi-user superposition, its essence is to utilize transmit power
The different downstream wireless signals distinguishing two users.Said two user generally includes a nearly use
Family (i.e. distance base station is near) and a remote user (i.e. distance base station is remote), base station is to use near
First signal at family distributes relatively low transmit power, is that the secondary signal for remote user is distributed simultaneously
Higher transmit power.Remote user directly demodulates secondary signal and (will work as at noise by the first signal
Reason), and first nearly user demodulates secondary signal and (possesses lower in view of nearly user user farther out
Path loss, successfully decoded probability is the highest), then from receiving removal secondary signal signal
Impact obtain residual signal, residual signal decoding is obtained the first signal, here it is SIC
(Successive Interference Cancellation, successive interference cancellation) algorithm.
In order to perform SIC, nearly user need to obtain the schedule information of the first signal and secondary signal-
And far user has only to obtain the schedule information of secondary signal.In traditional LTE dynamic dispatching, use
Family is according at PDCCH, (Physical Downlink Control Channel, physical down controls
Channel) or the DCI of the middle transmission of EPDCCH (Enhanced PDCCH, the PDCCH of enhancing)
(Downlink Control Information, Downlink Control Information) obtains PDSCH (Physical
Downlink Shared Channel, Physical Downlink Control Channel) schedule information.Therefore,
One intuitively idea be that base station sends the first signal and secondary signal in the DCI for nearly user
Schedule information, and the DCI for remote user sends the schedule information of secondary signal.
Summary of the invention
Inventor is found by research, and above-mentioned method intuitively may face following problem:
-. the schedule information of secondary signal have sent twice, reduces efficiency of transmission
-. for possible payload size (the Payload Size, i.e. information of the DCI of nearly user
Bit number) may be more.The payload size of DCI is determined by DCI format, i.e. for nearly user's
The payload size of DCI is not only affected by the scheduling form of the first signal, is also used by for remote
The impact of the DCI format at family.The most possible payload size can cause BD (Blind Decoding,
Blind decoding) increase of number of times, and then increase the complexity of UE.
Inventor, by further study show that, the running time-frequency resource that nearly user is scheduled there may be
The remote user of more than one is scheduled (being non-superimposed between remote user), and in order to perform SIC, pin
To the schedule information that may include in the DCI of nearly user for multiple remote users.Thus enter one
Step is degrading the problems referred to above.
For the problems referred to above, the invention provides solution.It should be noted that do not conflicting
In the case of, the embodiment in the UE of the application and the feature in embodiment may apply in base station,
Vice versa.Further, in the case of not conflicting, in embodiments herein and embodiment
Feature can arbitrarily be mutually combined.
The invention discloses a kind of method in UE supporting multi-user's superposition, wherein, including as follows
Step:
-step A. receives the first signaling, receives K1 dynamically letter respectively according to K1 group auxiliary information
Order.Described K1 group auxiliary information is indicated by the first signaling, described K1 group auxiliary information and described K1
Individual dynamic signaling one_to_one corresponding, described auxiliary information includes that { signaling identifies, and PDCCH/EPDCCH marks
Know position, time-frequency location, signaling format } in one or more
It is individual wireless that-step B. receives K1 respectively according to the schedule information in described K1 dynamic signaling
Signal, receives the first wireless signal according to the schedule information of the first signaling.
Wherein, the running time-frequency resource shared by each wireless signal in described K1 wireless signal and
Running time-frequency resource shared by first wireless signal is the most overlapping, and described K1 is positive integer.
First signaling and described K1 dynamic signaling are all physical layer signalings.If described K1 is more than 1,
Described K1 wireless signal is pairwise orthogonal on running time-frequency resource.
The essence of above-mentioned aspect is, first UE to receive multiple physical layer signaling, then could receive
Wireless signal.Above-mentioned essence has run counter to the common knowledge in existing Cellular Networks, because the plurality of thing
Reason layer signaling has 1 can not be properly received may result in UE and cannot receive downstream wireless signals.
Inventor is found by research, and above-mentioned common knowledge is no longer set up in multi-user's superposition scene, because of
Being properly received the probability for the given DCI for remote user for nearly user, to be greater than remote user correct
Receive the probability of described given DCI.
As an embodiment, described signaling mark for determine corresponding dynamic signaling { CRC disturbs
Code, the specific search volume of PDCCH UE, the specific search volume of EPDCCH UE } in one
Or it is multiple.
As an embodiment, described signaling mark is RNTI (Radio Network Temporary
Identity, the tentative mark of wireless network).
As an embodiment, SIC algorithm is used to obtain first for described K1 wireless signal
Wireless signal.As an embodiment, it is characterized in that of said method, also comprise the steps:
First wireless signal transfer is given high level by-step C., abandons described K1 wireless signal.
Owing to described K1 dynamic signaling does not needs to obtain additionally for described UE, described UE
Information (the most described K1 group auxiliary information) after could receive described K1 dynamic signaling.Enter
One step, the extra information required for PDCCH and EPDCCH, described UE is probably not
With.Therefore:
As an embodiment, if described PDCCH/EPDCCH flag be the first state (0 or
1), time, corresponding dynamic signaling transmit on PDCCH, the described auxiliary information of correspondence be for
PDCCH.If described PDCCH/EPDCCH flag is the state contrary with the first state, corresponding
Dynamic signaling transmit on EPDCCH, corresponding described auxiliary information is for EPDCCH.
In traditional LTE, UE (for the payload size that each is possible) determines DCI by BD
Shared PDCCH or EPDCCH.And BD time too much number may increase false-alarm probability,
And described time-frequency location in described auxiliary information and described signaling lattice show and can reduce UE for described
BD number performed by K1 dynamic signaling.
In traditional LTE, base station is that UE configures current TM (transmission mode) by high-level signaling,
Whether DCI includes CIF (Carrier Indicator Field, carrier wave instructions field), in DCI
Whether include that SRS (Sounding Reference Signal, interception reference signal) contour level is believed
Breath, UE can determine that the payload size of given DCI format according to described auxiliary information.And in the present invention,
UE is iff knowing the payload size of described K1 dynamic signaling, and does not knows the described of correspondence
High-level signaling, UE possibly cannot determine DCI format, the payload size of multiple DCI format i.e. occurs
The scene of conflict.One method is to configure high-level signaling in need by high-level signaling by UE.
But the method may bring substantial amounts of redundancy expense.Inventor is found by research, when first
Wireless signal is that (Demodulation Reference Signal, demodulation is with reference to letter based on DMRS
Number) transmission time, described K1 wireless signal also can only be transmission based on DMRS, otherwise institute
Target UE stating K1 wireless signal cannot perform rate-matched, or described K1 for DMRS
The target UE incompatible tradition UE of individual wireless signal.And DCI format of based on DMRS does not haves
The scene of payload size conflict.Therefore:
Concrete, according to an aspect of the present invention, it is characterised in that the first wireless signal be by
DMRS antenna port sends, and described UE supposes that described K1 wireless signal is all by DMRS antenna
Port sends.
As an embodiment, described auxiliary information does not include described signaling format, and described UE is blind to be translated
Code determines described signaling format.Above-mentioned aspect can effectively reduce the payload size of the first signaling.
When the first wireless signal is that (Cell Reference Signal, cell reference is believed based on CRS
Number) transmission time, each wireless signal in described K1 wireless signal is based on
The transmission of CRS or transmission based on DMRS.Now, the scene of described payload size conflict can
Can occur.Therefore:
Concrete, according to an aspect of the present invention, it is characterised in that the first wireless signal be by
CRS antenna port sends, and described auxiliary information includes described signaling format.
As an embodiment, described UE supposes that each in described K1 wireless signal is wireless
Signal is to be sent by DMRS antenna port or by the CRS antenna identical with the first wireless signal
Port sends.
As an embodiment, described UE performs to determine corresponding dynamic signaling according to described form
Possible payload size, and then perform decoded operation, described possible payload size be a kind of or
Multiple.
Concrete, according to an aspect of the present invention, it is characterised in that described step A also includes
Following steps:
-step A1. receives the first high-level signaling and determines K3 EPDCCH-PRB-set.
Wherein, for target dynamic signaling, the described time-frequency location in respective secondary supplementary information include with
At least one lower:
-the first index. target EPDCCH-PRB-set is in described K3 EPDCCH-PRB-set
Index
-the second index. the EPDCCH candidate that described target dynamic signaling takies is in described target
Index in EPDCCH-PRB-set.
Described target dynamic signaling be in described K1 dynamic signaling on EPDCCH transmission each
Individual dynamic signaling, belonging to the EPDCCH candidate that described target dynamic signaling takies
EPDCCH-PRB-set, described K3 are positive integers.
Second index can additionally reduce by BD number, but may increase the payload size of the first signaling.
As an embodiment, the first high-level signaling is RRC signaling.As an embodiment, institute
Stating K3 EPDCCH-PRB-set is that specifically (the i.e. first high-level signaling is only to present sub-frame for subframe
Effectively), or sub-frame set specific (specific sub-frame set is only had by the i.e. first high-level signaling
Effect).As an embodiment, the described time-frequency in described target dynamic signaling respective secondary supplementary information
The EPDCCH candidate that position also indicates described target dynamic signaling to take is distributed
(Distributed) the most centralized (Localized).
As an embodiment, described K3 is more than 2.
As an embodiment, described K3 EPDCCH-PRB-set shares identical being used for
EPDCCH resource mapping parameters, described EPDCCH resource mapping parameters instruction EPDCCH RE
(Resource Element, resource particle) should perform rate-matched (to avoid accounting for when mapping
With) RE.As a sub-embodiment, described K3 EPDCCH-PRB-set includes
Pdsch-Start-r11, crs-PortsCount-r11, crs-PortsCount-r11,
csi-RS-ConfigZPId-r11}。
Concrete, according to an aspect of the present invention, it is characterised in that for given dynamic signaling,
Described time-frequency location in respective secondary supplementary information includes that the PDCCH that described given dynamic signaling takies exists
Index in target PDCCH candidate collection, described target PDCCH candidate collection is existed by described UE
All PDCCH candidate institutes group of monitoring in the transmission subframe of described given dynamic signaling and transmission carrier wave
Become.Wherein, transmit on PDCCH during described given dynamic signaling is described K1 dynamic signaling
Each dynamic signaling.
Concrete, according to an aspect of the present invention, it is characterised in that described step A also includes
Following steps:
-step A2. receives the second high-level signaling and determines that the first integer, the first integer are used for generating
The initial value of DMRS sequence, the initial value of described DMRS sequence is believed by the first signaling and described K1 group
In order, all signalings transmitted on EPDCCH are shared.
As an embodiment, the first integer is less than the nonnegative integer of 504.As an enforcement
Example, the initial value of described DMRS sequence and the mapping relations of the first integer reuse DMRS in EPDCCH
The initial value of pseudo random sequence generator and high-level signaling dmrs-ScramblingSequenceInt
Mapping relations between the integer configured, it may be assumed that
Above-mentioned aspect forces described K1 dynamic signaling and the first signaling to use identical EPDCCH
DMRS sequence, advantage is reduction of the payload size of the first signaling.
Concrete, according to an aspect of the present invention, it is characterised in that described step A also includes
Following steps:
-step A3. receives the 3rd high-level signaling and determines the second integer set, in the second integer set
Including multiple integer elements different from each other.
Wherein, described K1 group auxiliary information also includes DMRS in all or part of auxiliary information
Association integer, described DMRS association integer is for generating at the beginning of the DMRS sequence of corresponding dynamic signaling
Initial value, described DMRS association integer index in the second integer set is indicated by the first signaling.
As an embodiment, described integer element is less than the nonnegative integer of 504.
As an embodiment, the initial value of described DMRS sequence associates with corresponding described DMRS
The mapping relations of integer reuse initial value and the high level of DMRS pseudo random sequence generator in EPDCCH
Mapping relations between the integer that signaling dmrs-ScramblingSequenceInt is configured.
Above-mentioned aspect makes described K1 dynamic signaling and the first signaling may use variable
EPDCCH DMRS sequence, cost is the increase in the payload size of the first signaling.
The invention discloses a kind of method in base station supporting multi-user's superposition, wherein, including such as
Lower step:
-step A. sends the first signaling and K1 dynamic signaling.First signaling indicate K1 group auxiliary
Supplementary information.Described K1 group auxiliary information and described K1 dynamic signaling one_to_one corresponding, described auxiliary
Information includes one or more in { signaling identifies, time-frequency location, signaling format }
-step B. sends K1 wireless signal and the first wireless signal.
Wherein, the first signaling includes the schedule information of the first wireless signal, dynamically believes for described K1
Schedule information in order is respectively used to dispatch described K1 wireless signal.Described K1 wireless signal
In the running time-frequency resource shared by each wireless signal and time-frequency shared by the first wireless signal
Resource is the most overlapping, and described K1 is positive integer.First signaling and described K1 are individual dynamically
Signaling is all physical layer signaling.Described signaling format includes { whether including CIF, if include SRS
Request, DCI format, transmission mode } in one or more.If described K1 is more than 1,
Described K1 wireless signal is pairwise orthogonal on running time-frequency resource.
As an embodiment, occur when described DCI format is different with described transmission mode.
Concrete, according to an aspect of the present invention, it is characterised in that the first wireless signal be by
DMRS antenna port sends, and described UE supposes that described K1 wireless signal is all by DMRS antenna
Port sends.
As an embodiment, described auxiliary information does not include described signaling format, and described UE is blind to be translated
Code determines described signaling format.
As an embodiment, the first wireless signal is to be sent by DMRS antenna port, described dynamically
Signaling is the DCI format { one in 2B, 2C}.
Concrete, according to an aspect of the present invention, it is characterised in that the first wireless signal be by
CRS antenna port sends, and described auxiliary information includes described signaling format.
As an embodiment, the first wireless signal is to be sent by CRS antenna port, described dynamic letter
Order is DCI format { 1,1A, 1B, 1C, 1D, 2, the one in 2A, 2B, 2C}.
Concrete, according to an aspect of the present invention, it is characterised in that described step A also includes
Following steps:
-step A1. sends the first high-level signaling K3 EPDCCH-PRB-set of instruction.
Wherein, for target dynamic signaling, the described time-frequency location in respective secondary supplementary information include with
At least one lower:
-the first index. target EPDCCH-PRB-set is in described K3 EPDCCH-PRB-set
Index
-the second index. the EPDCCH candidate that described target dynamic signaling takies is in described target
Index in EPDCCH-PRB-set.
Described target dynamic signaling be in described K1 dynamic signaling on EPDCCH transmission each
Individual dynamic signaling, belonging to the EPDCCH candidate that described target dynamic signaling takies
EPDCCH-PRB-set, described K3 are positive integers.
Concrete, according to an aspect of the present invention, it is characterised in that for given dynamic signaling,
Described time-frequency location in respective secondary supplementary information includes that the PDCCH that described given dynamic signaling takies exists
Index in target PDCCH candidate collection, described target PDCCH candidate collection is by the first signaling
Target UE is all PDCCH of monitoring in the transmission subframe and transmission carrier wave of described given dynamic signaling
Candidate is formed.Wherein, at PDCCH during described given dynamic signaling is described K1 dynamic signaling
Each dynamic signaling of upper transmission
Concrete, according to an aspect of the present invention, it is characterised in that described step A also includes
Following steps:
-step A2. sends the second high-level signaling and indicates the first integer, the first integer to be used for generating
The initial value of DMRS sequence, the initial value of described DMRS sequence is believed by the first signaling and described K1 group
In order, all signalings transmitted on EPDCCH are shared.
Concrete, according to an aspect of the present invention, it is characterised in that described step A also includes
Following steps:
-step A3. sends the 3rd high-level signaling and indicates the second integer set, in the second integer set
Including multiple integer elements different from each other.
Wherein, described K1 group auxiliary information also includes DMRS in all or part of auxiliary information
Association integer, described DMRS association integer is for generating at the beginning of the DMRS sequence of corresponding dynamic signaling
Initial value, described DMRS association integer index in the second integer set is indicated by the first signaling.
The invention discloses a kind of subscriber equipment supporting multi-user's superposition, wherein, including such as lower mold
Block:
First module: for receiving the first signaling, receive K1 respectively according to K1 group auxiliary information
Dynamic signaling.Described K1 group auxiliary information is indicated by the first signaling, described K1 group auxiliary information and
Described K1 dynamic signaling one_to_one corresponding, described auxiliary information include signaling identify, time-frequency location,
Signaling format } in one or more
Second module: for receiving K1 respectively according to the schedule information in described K1 dynamic signaling
Individual wireless signal, receives the first wireless signal according to the schedule information of the first signaling.
Wherein, the running time-frequency resource shared by each wireless signal in described K1 wireless signal
The most overlapping with the running time-frequency resource shared by the first wireless signal, described K1 is the most whole
Number.First signaling and described K1 dynamic signaling are all physical layer signalings.Described signaling format bag
Include in { whether including CIF, if include SRS request, DCI format, transmission mode }
Or it is multiple.If described K1 is more than 1, described K1 wireless signal is two on running time-frequency resource
Pairwise orthogonal.
The invention discloses a kind of base station equipment supporting multi-user's superposition, wherein, including such as lower mold
Block:
First module: for sending the first signaling and K1 dynamic signaling.First signaling indicates
K1 group auxiliary information.Described K1 group auxiliary information and described K1 dynamic signaling one_to_one corresponding, institute
State that auxiliary information includes in { signaling identifies, time-frequency location, signaling format } one or more
Second module: be used for sending K1 wireless signal and the first wireless signal.
Wherein, the first signaling includes the schedule information of the first wireless signal, dynamically believes for described K1
Schedule information in order is respectively used to dispatch described K1 wireless signal.Described K1 wireless signal
In the running time-frequency resource shared by each wireless signal and time-frequency shared by the first wireless signal
Resource is the most overlapping, and described K1 is positive integer.First signaling and described K1 are individual dynamically
Signaling is all physical layer signaling.Described signaling format includes { whether including CIF, if include SRS
Request, DCI format, transmission mode } in one or more.If described K1 is more than 1,
Described K1 wireless signal is pairwise orthogonal on running time-frequency resource.
Comparing existing public technology, the present invention has a following technical advantage:
-. avoid the repeatedly transmission of same group scheduling information, save interface-free resources
-. reduce UE and perform the number of times of BD, reduce the complexity of UE, avoided simultaneously
The false-alarm that BD time many numbers causes increases.
Accompanying drawing explanation
The detailed description that non-limiting example is made made with reference to the following drawings by reading, this
The other features, objects and advantages of invention will become more apparent:
Fig. 1 shows the scheduling flow of descending multi-user superposition according to an embodiment of the invention
Figure；
Fig. 2 shows that the first signaling according to an embodiment of the invention indicates one group of auxiliary information
Schematic diagram；
Fig. 3 shows that the resource distribution of descending multi-user superposition according to an embodiment of the invention is shown
It is intended to；
Fig. 4 shows the structured flowchart of the processing means in UE according to an embodiment of the invention；
Fig. 5 shows the structural frames of the processing means in base station according to an embodiment of the invention
Figure；
Detailed description of the invention
Below in conjunction with accompanying drawing, technical scheme is described in further detail, needs explanation
It is that, in the case of not conflicting, the feature in embodiments herein and embodiment can be the most mutual
Combination.
Embodiment 1
Embodiment 1 illustrates the scheduling flow figure of descending multi-user superposition, as shown in Figure 1.Accompanying drawing
In 1, base station N1 is the maintenance base station of the Serving cell of UE U2, and wherein the step in square frame F1 is
Optional step.
ForBase station N1, send the first signaling and K1 dynamic signaling in step s 11.First letter
Order indicates K1 group auxiliary information.Described K1 group auxiliary information and described K1 dynamic signaling one
One is corresponding.Send K1 wireless signal and the first wireless signal in step s 13.ForUE U2,
Receive the first signaling in the step s 21, receive K1 dynamically letter respectively according to K1 group auxiliary information
Order.K1 is received respectively according to the schedule information in described K1 dynamic signaling in step S23
Wireless signal, receives the first wireless signal according to the schedule information of the first signaling.
In embodiment 1, the first signaling includes the schedule information of the first wireless signal, described K1
Schedule information in dynamic signaling is respectively used to dispatch described K1 wireless signal.Described K1 nothing
Shared by the running time-frequency resource shared by each wireless signal in line signal and the first wireless signal
Running time-frequency resource the most overlapping, described K1 is positive integer.First signaling and described K1
Individual dynamic signaling is all physical layer signaling.If described K1 is more than 1, described K1 wireless signal
It running time-frequency resource is pairwise orthogonal.
As the sub-embodiment 1 of embodiment 1, described auxiliary information includes that { signaling identifies, time-frequency position
Put, signaling format }.Described signaling format includes { whether including CIF, DCI format or transmission mould
Formula }.
As the sub-embodiment 2 of embodiment 1, base station N1 sends the first high-rise letter in step s 12
Order K3 EPDCCH-PRB-set of instruction.UE U2 receives the first high-level signaling in step S22.
Wherein, for target dynamic signaling, respective secondary supplementary information includes at least one of:
-the first index. target EPDCCH-PRB-set is in described K3 EPDCCH-PRB-set
Index
-the second index. the EPDCCH candidate that described target dynamic signaling takies is in described target
Index in EPDCCH-PRB-set.
Described target dynamic signaling be in described K1 dynamic signaling on EPDCCH transmission each
Individual dynamic signaling, belonging to the EPDCCH candidate that described target dynamic signaling takies
EPDCCH-PRB-set, described K3 are positive integers.
As the sub-embodiment 3 of embodiment 1, described K1 is 1 or 2.
As the sub-embodiment 4 of embodiment 1, the auxiliary letter of packet in the middle part of described K1 group auxiliary information
Breath includes { signaling identifies, time-frequency location, signaling format }, and the auxiliary information of part group includes { letter
Order mark, signaling format }.
As the sub-embodiment 5 of embodiment 1, if the first wireless signal is by DMRS antenna end
Mouth sends, and described UE supposes that described K1 wireless signal is all to be sent by DMRS antenna port,
Described auxiliary information does not include described signaling format.If the first wireless signal is by CRS antenna end
Mouth sends, and described auxiliary information includes described signaling format.
Embodiment 2
Embodiment 2 illustrates the first signaling and indicates the schematic diagram of one group of auxiliary information, as shown in Figure 2.
Accompanying drawing 2 illustrates the information mapping in the first signaling of one group of auxiliary, it is not excluded that the first signaling instruction
Many group auxiliary information.
In embodiment 2, one group of auxiliary information includes { signaling identifies, time-frequency location, signaling format },
{ the first territory, the second territory, the 3rd territory } being respectively mapped in the first signaling.
As the sub-embodiment 1 of embodiment 2, described signaling mark is RNTI, and the first territory is comprised
Bit number less than 16, the mapping between the first territory and RNTI is configured by high-level signaling.Book is real
Execute example and can effectively reduce the payload size of the first signaling.
As the sub-embodiment 2 of embodiment 2, the bit number in the second territory corresponding for EPDCCH is more than
The bit number in the second territory corresponding for PDCCH.
As the sub-embodiment 3 of embodiment 2, if the transmission carrier wave of the first wireless signal is FDD
Carrier wave, the bit number in the 3rd territory is { in 2,3,4,5,6}.
Embodiment 3
Embodiment 3 illustrates the resource distribution schematic diagram of descending multi-user superposition, as shown in Figure 3.
In embodiment 3, first base station sends the first signaling and 2 dynamic signalings.In first signaling
Indicate 2 groups of auxiliary information.Described 2 groups of auxiliary information and described 2 dynamic signaling one_to_one corresponding.
Then base station sends 2 wireless signals (the i.e. second wireless signal and the 3rd wireless signal) and first
Wireless signal.First UE receives the first signaling, receives described respectively according to described 2 groups of auxiliary information
2 dynamic signalings.Then UE receives respectively according to the schedule information in described 2 dynamic signalings
Two wireless signals and the 3rd wireless signal, then eliminate the second wireless signal and the from receiving signal
After the component of three wireless signals, the schedule information further according to the first signaling receives the first wireless signal.
In embodiment 3, the first signaling includes the schedule information of the first wireless signal, and described 2 are moved
Schedule information in state signaling is respectively used to dispatch described 2 wireless signals.Described 2 wireless communication
The running time-frequency resource shared by each wireless signal in number and the frequency shared by the first wireless signal
Territory resource part is overlapping.First signaling and described 2 dynamic signalings are all physical layer signalings.Second
Wireless signal and the 3rd wireless signal are orthogonal in frequency domain resource.Second wireless signal and the 3rd
The power spectral density of wireless signal is more than the power spectral density of the first wireless signal.
Embodiment 4
Embodiment 4 illustrates the structured flowchart of the processing means in a UE, as shown in Figure 4.Attached
In Fig. 4, UE processing means 200 is mainly made up of receiver module 201 and receiver module 202.
Receiver module 201, for receiving the first signaling, receives K1 respectively according to K1 group auxiliary information
Individual dynamic signaling.Described K1 group auxiliary information is indicated by the first signaling, described K1 group auxiliary information
With described K1 dynamic signaling one_to_one corresponding, described auxiliary information includes that { signaling identifies, time-frequency position
Put, signaling format }.Receiver module 202 is for believing according to the scheduling in described K1 dynamic signaling
Breath receives K1 wireless signal respectively, receives the first wireless communication according to the schedule information of the first signaling
Number.
The time-frequency shared by each wireless signal in embodiment 4, in described K1 wireless signal
Running time-frequency resource shared by resource and the first wireless signal is the most overlapping, and described K1 is
Positive integer.First signaling and described K1 dynamic signaling contribute to the DCI of scheduling downstream transmission.
Described signaling format includes { whether including CIF, if include SRS request, DCI format, transmission
Pattern } in one or more.If described K1 is more than 1, described K1 wireless signal time
Frequently it is pairwise orthogonal in resource.
As the sub-embodiment 1 of embodiment 4, receiver module 201 is additionally operable to one below:
-. receive the second high-level signaling and determine that the first integer, the first integer are used for generating DMRS sequence
Initial value, the initial value of described DMRS sequence is by all in the first signaling and described K1 group signaling
On EPDCCH, the signaling of transmission is shared.
-. receiving the 3rd high-level signaling and determine the second integer set, the second integer set includes many
Individual integer element different from each other.Wherein, corresponding EPDCCH in described K1 group auxiliary information
Auxiliary information in also include that DMRS associates integer, described DMRS association integer is used for generating corresponding
The initial value of the DMRS sequence of dynamic signaling, described DMRS association integer is in the second integer set
Index indicated by the first signaling.
As the sub-embodiment 1 of embodiment 4, the first signaling is new DCI format, described dynamic letter
Order is DCI format { 1,1A, 1B, 1C, 1D, 2, the one in 2A, 2B, 2C, 2D}.
Embodiment 5
Embodiment 5 illustrates the structured flowchart of the processing means in a base station, as shown in Figure 5.
In accompanying drawing 5, base station processing means 300 is mainly made up of sending module 301 and sending module 302.
Sending module 301 is for sending the first signaling and K1 dynamic signaling.First signaling indicates
K1 group auxiliary information.Described K1 group auxiliary information and described K1 dynamic signaling one_to_one corresponding.Send out
Send module 302 for sending K1 wireless signal and the first wireless signal.
In embodiment 5, the first signaling includes the schedule information of the first wireless signal, and described K1 dynamic
Schedule information in state signaling is respectively used to dispatch described K1 wireless signal.Described K1 wireless
Shared by the running time-frequency resource shared by each wireless signal in signal and the first wireless signal
Running time-frequency resource is the most overlapping, and described K1 is positive integer.First signaling and described K1 are individual
Dynamic signaling contributes to the DCI of scheduling downstream transmission.If described K1 is more than 1, described K1
Individual wireless signal is non-overlapping copies two-by-two on running time-frequency resource.
As the sub-embodiment 1 of embodiment 5, sending module 301 is additionally operable to send the instruction of RRC signaling
K3 EPDCCH-PRB-set.Wherein, in described K1 dynamic signaling on EPDCCH
The target dynamic signaling of transmission, respective secondary supplementary information includes the first index, and the most described target dynamic is believed
The EPDCCH-PRB-set belonging to order index in described K3 EPDCCH-PRB-set.Right
The given dynamic signaling transmitted on PDCCH in described K1 dynamic signaling, assists letter accordingly
Breath includes PDCCH that described given dynamic signaling the takies rope in target PDCCH candidate collection
Drawing, described target PDCCH candidate collection is given dynamically letter by target UE of the first signaling described
In the transmission subframe of order and transmission carrier wave, all PDCCH candidates of monitoring are formed.
One of ordinary skill in the art will appreciate that all or part of step in said method is permissible
Instructing related hardware by program to complete, described program can be stored in computer-readable storage medium
In matter, such as read only memory, hard disk or CD etc..Optionally, above-described embodiment whole or
Part steps can also use one or more integrated circuit to realize.Accordingly, above-mentioned enforcement
Each modular unit in example, can use example, in hardware to realize, it is also possible to by software function module
Form realizes, and the application is not limited to the combination of the software and hardware of any particular form.In the present invention
UE include but not limited to the Wireless Telecom Equipments such as mobile phone, panel computer, notebook, card of surfing Internet.
Base station in the present invention includes but not limited to macrocell base stations, microcell base station, Home eNodeB, in
Continue the Wireless Telecom Equipments such as base station.
The above, only presently preferred embodiments of the present invention, it is not intended to limit the present invention's
Protection domain.All within the spirit and principles in the present invention, any amendment made, equivalent,
Improve, should be included within the scope of the present invention.
Claims (16)
1. support the method in the UE of multi-user's superposition, wherein, comprise the steps:
-step A. receives the first signaling, receives K1 dynamically letter respectively according to K1 group auxiliary information
Order.Described K1 group auxiliary information is indicated by the first signaling, described K1 group auxiliary information and described K1
Individual dynamic signaling one_to_one corresponding, described auxiliary information includes that { signaling identifies, time-frequency location, signaling
Form } in one or more
It is individual wireless that-step B. receives K1 respectively according to the schedule information in described K1 dynamic signaling
Signal, receives the first wireless signal according to the schedule information of the first signaling.
Wherein, the running time-frequency resource shared by each wireless signal in described K1 wireless signal
The most overlapping with the running time-frequency resource shared by the first wireless signal, described K1 is the most whole
Number.First signaling and described K1 dynamic signaling are all physical layer signalings.Described signaling format bag
Include in { whether including CIF, if include SRS request, DCI format, transmission mode }
Or it is multiple.If described K1 is more than 1, described K1 wireless signal is two on running time-frequency resource
Pairwise orthogonal.
Method the most according to claim 1, it is characterised in that the first wireless signal be by
DMRS antenna port sends, and described UE supposes that described K1 wireless signal is all by DMRS antenna
Port sends.
Method the most according to claim 1, it is characterised in that the first wireless signal be by
CRS antenna port sends, and described auxiliary information includes described signaling format.
Method the most according to claim 1, it is characterised in that described step A also includes
Following steps:
-step A1. receives the first high-level signaling and determines K3 EPDCCH-PRB-set.
Wherein, for target dynamic signaling, the described time-frequency location in respective secondary supplementary information include with
At least one lower:
-the first index. target EPDCCH-PRB-set is in described K3 EPDCCH-PRB-set
Index
-the second index. the EPDCCH candidate that described target dynamic signaling takies is in described target
Index in EPDCCH-PRB-set.
Described target dynamic signaling be in described K1 dynamic signaling on EPDCCH transmission each
Individual dynamic signaling, belonging to the EPDCCH candidate that described target dynamic signaling takies
EPDCCH-PRB-set, described K3 are positive integers.
5. according to the method described in claim Isosorbide-5-Nitrae, it is characterised in that for given dynamically letter
Order, the described time-frequency location in respective secondary supplementary information includes what described given dynamic signaling took
PDCCH index in target PDCCH candidate collection, described target PDCCH candidate collection is by institute
State UE all PDCCH of monitoring in the transmission subframe of described given dynamic signaling and transmission carrier wave
Candidate is formed.Wherein, at PDCCH during described given dynamic signaling is described K1 dynamic signaling
Each dynamic signaling of upper transmission.
Method the most according to claim 1, it is characterised in that described step A also includes
Following steps:
-step A2. receives the second high-level signaling and determines that the first integer, the first integer are used for generating
The initial value of DMRS sequence, the initial value of described DMRS sequence is believed by the first signaling and described K1 group
In order, all signalings transmitted on EPDCCH are shared.
Method the most according to claim 1, it is characterised in that described step A also includes
Following steps:
-step A3. receives the 3rd high-level signaling and determines the second integer set, in the second integer set
Including multiple integer elements different from each other.
Wherein, described K1 group auxiliary information also includes DMRS in all or part of auxiliary information
Association integer, described DMRS association integer is for generating at the beginning of the DMRS sequence of corresponding dynamic signaling
Initial value, described DMRS association integer index in the second integer set is indicated by the first signaling.
8. support the method in the base station of multi-user's superposition, wherein, comprise the steps:
-step A. sends the first signaling and K1 dynamic signaling.First signaling indicate K1 group auxiliary
Supplementary information.Described K1 group auxiliary information and described K1 dynamic signaling one_to_one corresponding, described auxiliary
Information includes one or more in { signaling identifies, time-frequency location, signaling format }
-step B. sends K1 wireless signal and the first wireless signal.
Wherein, the first signaling includes the schedule information of the first wireless signal, dynamically believes for described K1
Schedule information in order is respectively used to dispatch described K1 wireless signal.Described K1 wireless signal
In the running time-frequency resource shared by each wireless signal and time-frequency shared by the first wireless signal
Resource is the most overlapping, and described K1 is positive integer.First signaling and described K1 are individual dynamically
Signaling is all physical layer signaling.Described signaling format includes { whether including CIF, if include SRS
Request, DCI format, transmission mode } in one or more.If described K1 is more than 1,
Described K1 wireless signal is pairwise orthogonal on running time-frequency resource.
Method the most according to claim 8, it is characterised in that the first wireless signal be by
DMRS antenna port sends, and described UE supposes that described K1 wireless signal is all by DMRS antenna
Port sends.
Method the most according to claim 8, it is characterised in that the first wireless signal be by
CRS antenna port sends, and described auxiliary information includes described signaling format.
11. methods according to claim 8, it is characterised in that described step A also includes
Following steps:
-step A1. sends the first high-level signaling K3 EPDCCH-PRB-set of instruction.
Wherein, for target dynamic signaling, the described time-frequency location in respective secondary supplementary information include with
At least one lower:
-the first index. target EPDCCH-PRB-set is in described K3 EPDCCH-PRB-set
Index
-the second index. the EPDCCH candidate that described target dynamic signaling takies is in described target
Index in EPDCCH-PRB-set.
Described target dynamic signaling be in described K1 dynamic signaling on EPDCCH transmission each
Individual dynamic signaling, belonging to the EPDCCH candidate that described target dynamic signaling takies
EPDCCH-PRB-set, described K3 are positive integers.
12. according to Claim 8, the method described in 11, it is characterised in that for given dynamic
Signaling, the described time-frequency location in respective secondary supplementary information includes what described given dynamic signaling took
PDCCH index in target PDCCH candidate collection, described target PDCCH candidate collection is by
Target UE of one signaling is monitoring in the transmission subframe and transmission carrier wave of described given dynamic signaling
All PDCCH candidates are formed.Wherein, described given dynamic signaling is described K1 dynamically letter
Each dynamic signaling transmitted on PDCCH in order.
13. methods according to claim 8, it is characterised in that described step A also includes
Following steps:
-step A2. sends the second high-level signaling and indicates the first integer, the first integer to be used for generating
The initial value of DMRS sequence, the initial value of described DMRS sequence is believed by the first signaling and described K1 group
In order, all signalings transmitted on EPDCCH are shared.
14. methods according to claim 8, it is characterised in that described step A also includes
Following steps:
-step A3. sends the 3rd high-level signaling and indicates the second integer set, in the second integer set
Including multiple integer elements different from each other.
Wherein, described K1 group auxiliary information also includes DMRS in all or part of auxiliary information
Association integer, described DMRS association integer is for generating at the beginning of the DMRS sequence of corresponding dynamic signaling
Initial value, described DMRS association integer index in the second integer set is indicated by the first signaling.
15. 1 kinds of subscriber equipmenies supporting multi-user's superposition, wherein, including such as lower module:
First module: for receiving the first signaling, receive K1 respectively according to K1 group auxiliary information
Dynamic signaling.Described K1 group auxiliary information is indicated by the first signaling, described K1 group auxiliary information and
Described K1 dynamic signaling one_to_one corresponding, described auxiliary information include signaling identify, time-frequency location,
Signaling format } in one or more
Second module: for receiving K1 respectively according to the schedule information in described K1 dynamic signaling
Individual wireless signal, receives the first wireless signal according to the schedule information of the first signaling.
Wherein, the running time-frequency resource shared by each wireless signal in described K1 wireless signal
The most overlapping with the running time-frequency resource shared by the first wireless signal, described K1 is the most whole
Number.First signaling and described K1 dynamic signaling are all physical layer signalings.Described signaling format bag
Include in { whether including CIF, if include SRS request, DCI format, transmission mode }
Or it is multiple.If described K1 is more than 1, described K1 wireless signal is two on running time-frequency resource
Pairwise orthogonal.
16. 1 kinds of base station equipments supporting multi-user's superposition, wherein, including such as lower module:
First module: for sending the first signaling and K1 dynamic signaling.First signaling indicates
K1 group auxiliary information.Described K1 group auxiliary information and described K1 dynamic signaling one_to_one corresponding, institute
State that auxiliary information includes in { signaling identifies, time-frequency location, signaling format } one or more
Second module: be used for sending K1 wireless signal and the first wireless signal.
Wherein, the first signaling includes the schedule information of the first wireless signal, dynamically believes for described K1
Schedule information in order is respectively used to dispatch described K1 wireless signal.Described K1 wireless signal
In the running time-frequency resource shared by each wireless signal and time-frequency shared by the first wireless signal
Resource is the most overlapping, and described K1 is positive integer.First signaling and described K1 are individual dynamically
Signaling is all physical layer signaling.Described signaling format includes { whether including CIF, if include SRS
Request, DCI format, transmission mode } in one or more.If described K1 is more than 1,
Described K1 wireless signal is pairwise orthogonal on running time-frequency resource.
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| PCT/CN2016/076608 WO2016146073A1 (en) | 2015-03-17 | 2016-03-17 | Ue supporting multi-user superposition, method and device of base station |
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| CN201510117203.3A CN106034360B (en) | 2015-03-17 | 2015-03-17 | Multi-user superposition transmission method and device |
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| CN110138429A (en) * | 2018-02-09 | 2019-08-16 | 上海朗帛通信技术有限公司 | A kind of user equipment that be used to wirelessly communicate, the method and apparatus in base station |
| CN110138429B (en) * | 2018-02-09 | 2022-03-29 | 上海朗帛通信技术有限公司 | Method and device used in user equipment and base station for wireless communication |
| CN111769928A (en) * | 2018-03-21 | 2020-10-13 | 上海朗帛通信技术有限公司 | Method and device used in user equipment and base station for wireless communication |
| CN110300452A (en) * | 2018-03-21 | 2019-10-01 | 上海朗帛通信技术有限公司 | A kind of user equipment that be used to wirelessly communicate, the method and apparatus in base station |
| US11382070B2 (en) | 2018-03-21 | 2022-07-05 | Shanghai Langbo Communication Technology Company Limited | Method and device in UE and base station used for wireless communication |
| CN110300452B (en) * | 2018-03-21 | 2020-06-30 | 上海朗帛通信技术有限公司 | Method and device used in user equipment and base station for wireless communication |
| CN111769928B (en) * | 2018-03-21 | 2023-05-23 | 荣耀终端有限公司 | User equipment, method and device in base station for wireless communication |
| US11722997B2 (en) | 2018-03-21 | 2023-08-08 | Honor Device Co., Ltd. | Method and device in UE and base station used for wireless communication |
| CN110366191A (en) * | 2018-04-09 | 2019-10-22 | 上海朗帛通信技术有限公司 | A kind of user equipment that be used to wirelessly communicate, the method and apparatus in base station |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2016146073A1 (en) | 2016-09-22 |
| CN106034360B (en) | 2020-04-10 |
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