CN101594174A - Support method and the base station of uplink network MIMO - Google Patents
Support method and the base station of uplink network MIMO Download PDFInfo
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Abstract
The invention provides method and the base station of supporting uplink network MIMO.Comprise according to the method in a kind of base station of the present invention: the subscriber equipment of serving for this base station, receive subscriber signal from the one or more subscriber equipmenies that comprise this subscriber equipment, and determine the channel condition information between this base station and the described one or more subscriber equipment; From being at least one other base stations reception subscriber signals and corresponding channel condition information of this subscriber equipment collaboration services; And the subscriber signal that itself receives according to this base station and determined channel condition information and the subscriber signal and the respective channel state information that receive from described at least one other base station, described subscriber signal is carried out joint detection and decoding, with the data of this subscriber equipment of obtaining to be served from this base station.
Description
Technical field
The present invention relates to distributed network architecture, more specifically, relate to a kind of method and base station of supporting uplink network multiple-input and multiple-output (MIMO).
Background technology
As everyone knows, for the communication system in future, as cellular system, main capacity limit is caused by presence of intercell interference.Verified, network multiple-input and multiple-output (MIMO) scheme is suitable for overcoming in the grid and is limited by the spectrum efficiency that common-channel interference caused.
In network MIMO, the thought of uplink network MIMO is that group of base stations is with the cooperation mode received signal.Can carry out uplink network MIMO by between a plurality of base stations, using joint detection and decoding, this need be between the base station of cooperating sharing users message and channel condition information.
Yet the current network architecture can not network enabled MIMO technology.In the prior art, relevant logical description how to realize the network MIMO technology has only been proposed, can be with reference to list of references 1 and 2.The basic thought of network MIMO is, to all baseband signals that receives, can carry out collaborative process.As shown in Figure 1, each user U1, U2, U3 or U4 provide service by a plurality of base station BS 1～BS4 cooperations.At present, most prior art focuses on the discussion of this technology itself and performance thereof, how logic function is not mapped in the real network entity but offer some clarification on.There is a central location (as shown in Figure 2) in nearly hypothesis in the list of references 1, and it knows the instant mimo channel of all users that is used to carry out collaborative process.Therefore, adopt this method, radio frequency (RF) front-end processing is just carried out in the base station, and the baseband signal that quantizes is sent to central location, to carry out joint-detection.
This framework has following shortcoming:
(1) this centralized approach has high requirement for the ability of central location, because all processing are all finished in central location; Especially when cooperative base station quantity increased, situation was more severe.When central unit breaks down, will cause whole network MIMO unavailable.
(2) this and the current network architecture are inconsistent.In current Long Term Evolution (LTE) system, always there is serving BS, it is responsible for signaling and connects foundation and modification.But in above-mentioned framework, the base station will lose the serving BS function, because as mentioned above, the base station is just as the RF front end.
List of references
[1]H.Huang，A.Hottinen，M.Shafi，P.J.Smith，M.Trivellato，and?R.Valenzuela，“System?Aspects?and?Performance?of?MIMO?in?CellularNetworks，”IEEE?Trans.Wireless?Commun.，Oct.2007
[2]Venkatesan，Sivarama，“Coordinating?Base?Stations?for?Greater?UplinkSpectral?Efficiency?in?a?Cellular?Network，”IEEE?International?Symposium?onPersonal，Indoor?and?Mobile?Radio?Communications，Sept.2007
Summary of the invention
In view of the above problems, be desirable to provide a kind of method and base station of supporting uplink network multiple-input and multiple-output (MIMO) technology.
According to an aspect of the present invention, method in a kind of base station is provided, comprise: the subscriber equipment of serving for this base station, receive subscriber signal from the one or more subscriber equipmenies that comprise this subscriber equipment, and determine the channel condition information between this base station and the described one or more subscriber equipment; From being at least one other base stations reception subscriber signals and corresponding channel condition information of this subscriber equipment collaboration services; And the subscriber signal that itself receives according to this base station and determined channel condition information and the subscriber signal and the respective channel state information that receive from described at least one other base station, described subscriber signal is carried out joint detection and decoding, with the data of this subscriber equipment of obtaining to be served from this base station.
Preferably, if the signal that receives from described other base stations is the detection signal that obtains after by described other base stations subscriber signal being detected, then can be according to the detection signal that receives, the regeneration subscriber signal, and the subscriber signal that the subscriber signal of regeneration and this base station itself receive carried out joint detection and decoding.
Preferably, this method can also comprise: the data that obtain are sent to corresponding gateway in the communication network.
Preferably, subscriber signal is carried out joint detection and decoding can comprise from the step of the data of subscriber equipment obtaining: subscriber signal is detected and decodes, obtain media interviews control (MAC) layer data; And the MAC layer data is carried out the upper strata handle, to obtain the IP grouping.
Preferably, this method can also comprise: according to the joint detection and decoding result, this subscriber equipment of serving to this base station sends acknowledgement/non-acknowledgement (ACK/NACK) message.
According to a further aspect in the invention, method in a kind of base station is provided, comprise: for the subscriber equipment of this base station institute collaboration services, receive subscriber signal from the one or more subscriber equipmenies that comprise this subscriber equipment, and determine the channel condition information between this base station and the described one or more subscriber equipment; Provide described subscriber signal and described channel condition information to another base station that service is provided for this base station.
Preferably, this method can also comprise: the subscriber signal that receives is quantized, and the signal that quantizes is sent to described another base station with determined channel condition information.
Preferably, this method can also comprise: the subscriber signal that receives is detected obtaining detection signal, and detection signal is sent to described another base station with determined channel condition information.
According to another aspect of the invention, base station in a kind of communication network is provided, comprise that channel condition information determines device, R-T unit and processing unit, wherein, the subscriber equipment of serving for this base station, described R-T unit receives subscriber signal from the one or more subscriber equipmenies that comprise this subscriber equipment, described channel condition information determines that device determines the channel condition information between this base station and the described one or more subscriber equipment, described R-T unit is from being at least one other base stations reception subscriber signals and corresponding channel condition information of this subscriber equipment collaboration services, and described processing unit is determined channel condition information that device is determined and subscriber signal and the respective channel state information that receives from described at least one other base station according to subscriber signal and described channel condition information that the R-T unit of this base station itself receives, described subscriber signal is carried out joint detection and decoding, with the data of this subscriber equipment of obtaining to be served from this base station.
Preferably, this base station can also comprise the regeneration device, under the situation of the detection signal that described regeneration device obtains after the subscriber signal that receives from described other base stations is by described other base stations subscriber signal to be detected, according to the detection signal regeneration subscriber signal that receives.
Preferably, can the data that obtain be sent to corresponding gateway in the communication network by R-T unit.
Preferably, processing unit obtains media interviews control (MAC) layer data by subscriber signal being detected and decoding; And the MAC layer data is carried out the upper strata handle, to obtain the IP grouping.
Preferably, processing unit can be according to the joint detection and decoding result, and this subscriber equipment of serving to this base station by R-T unit sends ACK/NACK message.
In accordance with a further aspect of the present invention, base station in a kind of communication network is provided, comprise that channel condition information determines device, R-T unit and processing unit, wherein, subscriber equipment for this base station institute collaboration services, described R-T unit receives subscriber signal from the one or more subscriber equipmenies that comprise this subscriber equipment, described channel condition information determines that device determines the channel condition information between this base station and the described one or more subscriber equipment, and described processing unit sends to another base station that service is provided for this subscriber equipment with described subscriber signal and described channel condition information by R-T unit.
Preferably, processing unit can quantize the subscriber signal that receives, and by R-T unit the signal that quantizes is sent to described another base station with determined channel condition information.
Preferably, processing unit can detect the subscriber signal that receives obtaining detection signal, and by R-T unit detection signal is sent to described another base station with determined channel condition information.
A kind of distributed network architecture of supporting uplink network MIMO can be realized in the method according to this invention and base station, this distributed network architecture flexibility height, and lower to the requirement of the complexity of base station and ability, thus be easy to realize.In addition, this framework is consistent with current LTE system architecture.And, in this framework, have only serving BS to be responsible for data are detected and decode, it is carried out upper strata processing and forwarding and provide ACK/NACK feeding back, thereby be simply and effectively.
Description of drawings
According to the specific descriptions below in conjunction with accompanying drawing, above-mentioned and other purposes of the present invention, feature and advantage will be more clear.In the accompanying drawings:
Fig. 1 shows the concept map according to the network MIMO of prior art;
Fig. 2 shows the communication system concept map according to the network enabled MIMO of prior art;
Fig. 3 shows the schematic diagram according to single user network MIMO of the embodiment of the invention;
Fig. 4 shows the schematic diagram of single according to another embodiment of the present invention user network MIMO;
Fig. 5 shows the schematic diagram of multiple-user network MIMO according to another embodiment of the present invention; And
Fig. 6 shows the schematic diagram of multiple-user network MIMO according to another embodiment of the present invention.
Embodiment
Below, describe embodiments of the invention with reference to the accompanying drawings in detail.Described embodiment only is for the example illustrative purposes, but not limits the scope of the invention.
For the present invention clearly is described, will describe respectively: (1) single user network MIMO at two kinds of situations; (2) multiple-user network MIMO.
Single user network MIMO
Single user network MIMO is meant that a plurality of base stations provide the situation of service for a subscriber equipment cooperation.
Fig. 3 shows the schematic diagram according to single user network MIMO of the embodiment of the invention.As shown in Figure 3, the communication system 10 that is used to implement according to network MIMO of the present invention comprises: user equipment (UE) 1; The base station BS 1, the BS2 that communicate with user equipment (UE) 1; And with base station BS 1, the corresponding gateway GW1 of BS2, GW2.
In Fig. 3, only show a subscriber equipment and two base stations and corresponding gateway.But, it will be understood by those of skill in the art that communication system of the present invention is not limited to this configuration certainly, but can comprise a plurality of subscriber equipmenies and a plurality of base station.In this manual, only be with two base station BSs 1 and BS2 be sole user's equipment UE 1 cooperation service is provided is example, the situation of single user network MIMO of the present invention is described.
User equipment (UE) 1 can " be seen " at least two base station BSs 1 and BS2 in the network of this system.In the present embodiment, for example, base station BS 1 is the serving BS that service is provided for user equipment (UE) 1, and base station BS 2 is cooperative base station that collaboration services is provided for user equipment (UE) 1.Determining of serving BS, cooperative base station is known, for example, can wait and determines according to scheduling and resource allocation.Because this and purport of the present invention have nothing to do, and are not described in detail at this.
The base station can be from the subscriber equipment received signal, and determines the channel condition information between itself and the subscriber equipment.Determining of this status channel information is known to those skilled in the art, no longer is described in detail at this.Particularly, serving BS BS1 can receive subscriber signal from user equipment (UE) 1, and determines the channel condition information h11 between itself and the user equipment (UE) 1; Cooperative base station BS2 can receive subscriber signal from user equipment (UE) 1, and determines the channel condition information h12 between itself and the user equipment (UE) 1.
Cooperative base station as user equipment (UE) 1, base station BS 2 is after receiving subscriber signal, can quantize subscriber signal,, then this quantized signal r2 be sent to the serving BS BS1 of user equipment (UE) 1 with determined channel condition information h12 to obtain quantized signal r2.At this, the purpose that quantizes is to reduce transinformation.
Now, in serving BS BS1, have the subscriber signal that himself receives from subscriber equipment and the channel condition information h11 between determined BS1 and the UE1 and the subscriber signal r2 that receives from cooperative base station BS2 and the channel condition information h12 between BS2 and the UE1.So, in serving BS BS1, can be according to channel condition information h11 and h12, the subscriber signal that himself is received and carry out joint detection and decoding from the subscriber signal that cooperative base station BS2 receives is to obtain the data of user UE1.Principle and method that this MIMO detects are known to those skilled in the art, are not described in detail at this, with the understanding of the present invention of avoiding confusion.
After joint detection and decoding, according to the result, serving BS BS1 can send acknowledgement/non-acknowledgement (ACK/NACK) message ACK1/NACK1 to user equipment (UE) 1.In addition, if subscriber signal is correctly decoded, can in serving BS BS1, obtain media interviews control (MAC) protocol Data Unit (PDU) so, and the processing that can further carry out the upper strata (for example, the base station can comprise physical layer (PHY), MAC layer (MAC), wireless link key-course (RLC) and packet data convergence protocol layer (PDCP), as shown in Figure 3).Afterwards, the IP grouping is sent to corresponding gateway GW1.
Can see, in the above-described embodiments, for user equipment (UE) 1, by among its serving BS BS1 its data being detected and decoding, obtain MAC layer data (MAC PDU), it is carried out upper strata (rlc layer) handle and transmit, and send the ACK/NACK feedback to user equipment (UE) 1.Thereby, no longer need the central location in the conventional art.
In addition,, therefore, compare, can reduce to send the delay of ACK/NACK message with conventional art owing to not being in central location, to finish decoding at serving BS.
In the above-described embodiments, cooperative base station BS2 is forwarded to serving BS BS1 with quantized signal r2, in serving BS BS1 subscriber signal is carried out joint-detection.Alternatively, cooperative base station BS2 can also detect subscriber signal, and the detection signal that obtains is sent to serving BS BS1, to realize distributed processing, reduces the communication bandwidth requirement between the base station.
Fig. 4 shows the schematic diagram of single according to another embodiment of the present invention user network MIMO.The Reference numeral identical with Fig. 3 represented identical parts among Fig. 4.Except cooperative base station BS2 with detection signal
But not quantized signal r2 sends to outside the serving BS BS1, and the embodiment of Fig. 4 is substantially the same with the embodiment of Fig. 3.Below, the difference between them is only described.
Cooperative base station BS2 detects earlier subscriber signal after user equipment (UE) 1 receives subscriber signal, thereby obtains detection signal
Afterwards, cooperative base station BS2 is with detection signal
Send to serving BS BS1 together with channel condition information h12.Serving BS can use this detection signal
Come the regeneration received signal
Can be used to finish network MIMO then handles.
Multiple-user network MIMO
Multiple-user network MIMO is meant the situation that service is provided for a plurality of subscriber equipment cooperations simultaneously by a plurality of base stations.Network MIMO is the vague generalization of multiple-user network MIMO.
Fig. 5 shows the schematic diagram of multiple-user network MIMO according to another embodiment of the present invention.As shown in Figure 5, be used to implement communication system 10 ' comprising according to network MIMO of the present invention: user equipment (UE) 1 ', UE2 '; Base station BS 1 ', BS2 '; And with base station BS 1 ', the corresponding gateway GW1 ' of BS2 ', GW2 '.
In Fig. 5, only show two subscriber equipmenies and two base stations and corresponding gateway.But, it will be understood by those of skill in the art that communication system of the present invention is not limited to this configuration certainly, but can comprise a plurality of subscriber equipmenies and a plurality of base station.In this manual, only be with two base station BSs 1 ' and BS2 ' for two user equipment (UE)s 1 ' and UE2 ' cooperation provide the service be example, the situation of multiple-user network MIMO of the present invention is described.
User equipment (UE) 1 ' in the network of this system can " be seen " at least two base station BSs 1 ' and BS2 '.In the present embodiment, for example, base station BS 1 ' be is the user equipment (UE) 1 ' serving BS of service is provided, and user equipment (UE) 1 ' the provide cooperative base station of collaboration services is provided for and base station BS 2 ' be.In addition, user equipment (UE) 2 ' in the network of this system also can " be seen " base station BS 1 ' and BS2 '.In the present embodiment, for example, base station BS 2 ' be is the user equipment (UE) 2 ' serving BS of service is provided, and user equipment (UE) 2 ' the provide cooperative base station of collaboration services is provided for and base station BS 1 ' be.
Under situation shown in Figure 5, base station BS 1 ' be user equipment (UE) 1 ' serving BS be again simultaneously user equipment (UE) 2 ' cooperative base station; And base station BS 2 ' be user equipment (UE) 2 ' serving BS be simultaneously user equipment (UE) 1 ' cooperative base station.But it may be noted that and the invention is not restricted to this configuration.For example, be not be base station BS 1 ' but other base station (not shown) be user equipment (UE) 2 ' cooperative base station; Perhaps, be not be BS2 ' but other base station (not shown) be user equipment (UE) 1 ' cooperative base station.Such situation is conspicuous to those skilled in the art, and the present invention certainly is applied to these situations.
Equally, the base station can be from the subscriber equipment received signal, and determines the channel condition information between itself and the subscriber equipment.
Particularly, for user equipment (UE) 1 ' for, its serving BS BS1 ' can be from user equipment (UE) 1 ' and user equipment (UE) 2 ' receive subscriber signal (with the quantized signal r1 ' that obtains after this signal quantization), and determine itself and user equipment (UE) 1 ' between channel condition information h11 ' with and and user equipment (UE) 2 ' between channel condition information h21 '; Its cooperative base station BS2 ' can be from user equipment (UE) 2 ' and user equipment (UE) 1 ' receive subscriber signal (with the quantized signal r2 ' that obtains after this signal quantization), and determine itself and user equipment (UE) 2 ' between channel condition information h22 ' with and and user equipment (UE) 1 ' between channel condition information h12 '.
In the above-described embodiments, base station BS 1 ' with BS2 ' all from two identical user equipment (UE)s 1 ' and UE2 ' received signal.But the present invention is not limited thereto.As mentioned above, base station BS 1 ' can receive signal from different subscriber equipmenies with BS2 ', the present invention can certainly be applied to such situation.
As user equipment (UE) 1 ' cooperative base station, base station BS 2 ' with quantized signal r2 ' with determined state information h22 ' and h12 ' send to user equipment (UE) 1 ' serving BS BS1 '.
Now, user equipment (UE) 1 ' serving BS BS1 ' in, the subscriber signal r2 ' and channel condition information h22 ' and h12 ' that have the subscriber signal that himself receives from subscriber equipment and determined channel condition information h11 ' and h21 ' and receive from cooperative base station BS2 '.So, user equipment (UE) 1 ' serving BS BS1 ' in, can be according to channel condition information h11 ' and h21 ' and h22 ' and h12 ', the subscriber signal that himself is received and carry out joint detection and decoding from the subscriber signal that cooperative base station BS2 receives is to obtain the data of user UE1 '.
After joint detection and decoding, according to the result, serving BS BS1 ' can be to user equipment (UE) 1 ' transmission ACK/NACK message ACK1/NACK1 '.In addition, if subscriber signal is correctly decoded, can in serving BS BS1 ', obtain MAC PDU so, and can further carry out the processing on upper strata.Afterwards, the IP grouping is sent to corresponding gateway GW1 '.
Similarly, for user equipment (UE) 2 ' for, its serving BS BS2 ' can be from user equipment (UE) 2 ' and user equipment (UE) 1 ' receive subscriber signal (with the quantized signal r2 ' that obtains after this signal quantization), and determine itself and user equipment (UE) 2 ' between channel condition information h22 ' with and and user equipment (UE) 1 ' between channel condition information h12 '; Its cooperative base station BS1 ' can be from user equipment (UE) 1 ' and user equipment (UE) 2 ' receive subscriber signal (with the quantized signal r1 ' that obtains after this signal quantization), and determine itself and user equipment (UE) 1 ' between channel condition information h11 ' with and and user equipment (UE) 2 ' between channel condition information h21 '.
As user equipment (UE) 2 ' cooperative base station, base station BS 1 ' with quantized signal r1 ' with determined channel condition information h11 ' and h21 ' send to user equipment (UE) 2 ' serving BS BS2 '.
Now, user equipment (UE) 2 ' serving BS BS2 ' in, the signal r1 ' and channel condition information h11 ' and h21 ' that have the signal that himself receives from subscriber equipment and determined channel condition information h22 ' and h12 ' and receive from cooperative base station BS1 '.So, user equipment (UE) 2 ' serving BS BS2 ' in, can be according to channel condition information h22 ' and h12 ' and h11 ' and h21 ', the signal that himself is received and carry out joint detection and decoding from the signal that cooperative base station BS1 ' receives is to obtain the data of user UE2 '.
After joint detection and decoding, according to the result, serving BS BS2 ' can be to user equipment (UE) 2 ' transmission ACK/NACK message ACK2/NACK2 '.In addition, if subscriber signal is correctly decoded, can in serving BS BS2 ', obtain MAC PDU so, and can further carry out the processing on upper strata.Afterwards, the IP grouping is sent to corresponding gateway GW2 '.
Can see, in the above-described embodiments, can realize the effect that can reach embodiment illustrated in fig. 3 equally.That is, do not need to use central location, in the serving BS of subscriber equipment, subscriber signal detected and decode and further handle, and send the ACK/NACK feedback, thereby can reduce to send the delay of ACK/NACK message to subscriber equipment.
Similarly, in the embodiment shown in fig. 5, can implement distributed processing equally.
Fig. 6 shows the schematic diagram of multiple-user network MIMO according to another embodiment of the present invention.The Reference numeral identical with Fig. 5 represented identical parts among Fig. 6.Except cooperative base station BS1 '/BS2 ' with the detection signal vector
But not quantized signal r1 '/r2 ' sends to outside serving BS BS2 '/BS1 ', and the embodiment of Fig. 6 is substantially the same with the embodiment of Fig. 5.Below, the difference between them is only described.
User equipment (UE) 2 ' cooperative base station BS1 ' from user equipment (UE) 1 ' and after UE2 ' receives subscriber signal, subscriber signal is detected earlier, thereby obtain the detection signal vector
Afterwards, user equipment (UE) 2 ' cooperative base station BS1 ' with the detection signal vector
With channel condition information h11 ' and h21 ' send to user equipment (UE) 2 ' serving BS BS2 '.User equipment (UE) 2 ' serving BS BS2 ' can use this detection signal vector then
Come the regeneration received signal, can be used to finish network MIMO then and handle.
Equally, user equipment (UE) 1 ' cooperative base station BS2 ' from user equipment (UE) 2 ' and after UE1 ' receives subscriber signal, subscriber signal is detected earlier, thereby obtain the detection signal vector
Afterwards, user equipment (UE) 1 ' cooperative base station BS2 ' with the detection signal vector
With channel condition information h22 ' and h12 ' send to user equipment (UE) 1 ' serving BS BS1 '.User equipment (UE) 1 ' serving BS BS1 ' can use this detection signal vector then
Come the regeneration received signal, can be used to finish network MIMO then and handle.
Embodiment among Fig. 6 can realize the effect that can reach embodiment illustrated in fig. 4 equally.That is, can reduce the communication bandwidth requirement between the base station.
In addition, according to above description as can be known, can comprise according to base station of the present invention: R-T unit, be used for and subscriber equipment/other base stations between receive and send messages, for example receive subscriber signal from subscriber equipment, and from/to other base station reception/transmitting channel state informations; Channel condition information is determined device, is used for the channel condition information between definite and the subscriber equipment; And processing unit, be used for carrying out the present invention's various processing, for example carry out joint detection and decoding, to Signal Processing etc.In addition, the base station for example can also comprise the regeneration device, so that according to detection signal regeneration subscriber signal.Although these devices are also not shown in the accompanying drawings, those skilled in the art should be appreciated that these devices and its implementation.
More than describe embodiments of the invention with reference to the accompanying drawings.But, should be appreciated that describing these embodiment only is for the present invention is described, and do not really want to limit the present invention.Do not break away from spirit of the present invention and principle, it may occur to persons skilled in the art that multiple modification and replacement to these embodiment, these modifications and replacement should drop within the scope of the invention of claims qualification.
Claims (16)
1. the method in the base station comprises:
The subscriber equipment of serving for this base station,
Receive subscriber signal from the one or more subscriber equipmenies that comprise this subscriber equipment, and determine the channel condition information between this base station and the described one or more subscriber equipment;
From being at least one other base stations reception subscriber signals and corresponding channel condition information of this subscriber equipment collaboration services; And
Subscriber signal that itself receives according to this base station and determined channel condition information and the subscriber signal and the respective channel state information that receive from described at least one other base station, described subscriber signal is carried out joint detection and decoding, with the data of this subscriber equipment of obtaining to be served from this base station.
2. method according to claim 1 also comprises:
If the signal that receives from described other base stations is the detection signal that obtains after by described other base stations subscriber signal being detected, then according to the detection signal that receives, the regeneration subscriber signal, and the subscriber signal that the subscriber signal of regeneration and this base station itself receive carried out joint detection and decoding.
3. method according to claim 1 and 2 also comprises:
The data that obtain are sent to corresponding gateway in the communication network.
4. according to the described method of one of claim 1～3, wherein, subscriber signal is carried out joint detection and decoding, comprises with the step of acquisition from the data of this subscriber equipment:
Subscriber signal is detected and decodes, obtain media interviews control MAC layer data; And
The MAC layer data is carried out the upper strata handle, to obtain the IP grouping.
5. according to the described method of one of claim 1～3, also comprise:
According to the joint detection and decoding result, this subscriber equipment of serving to this base station sends acknowledgement/non-acknowledgement message.
6. the method in the base station comprises:
For the subscriber equipment of this base station institute collaboration services,
Receive subscriber signal from the one or more subscriber equipmenies that comprise this subscriber equipment, and determine the channel condition information between this base station and the described one or more subscriber equipment;
Provide described subscriber signal and described channel condition information to another base station that service is provided for this base station.
7. method according to claim 6 also comprises:
The subscriber signal that receives is quantized, and the signal that quantizes is sent to described another base station with determined channel condition information.
8. method according to claim 6 also comprises:
The subscriber signal that receives is detected obtaining detection signal, and detection signal is sent to described another base station with determined channel condition information.
9. the base station in the communication network comprises that channel condition information determines device, R-T unit and processing unit, wherein,
The subscriber equipment of serving for this base station,
Described R-T unit receives subscriber signal from the one or more subscriber equipmenies that comprise this subscriber equipment,
Described channel condition information determines that device determines the channel condition information between this base station and the described one or more subscriber equipment,
Described R-T unit is from being that at least one other base stations of this subscriber equipment collaboration services receive subscriber signals and corresponding channel condition information, and
Described processing unit is determined channel condition information that device is determined and subscriber signal and the respective channel state information that receives from described at least one other base station according to subscriber signal and described channel condition information that the R-T unit of this base station itself receives, described subscriber signal is carried out joint detection and decoding, with the data of this subscriber equipment of obtaining to be served from this base station.
10. base station according to claim 9, also comprise the regeneration device, under the situation of the detection signal that described regeneration device obtains after the subscriber signal that receives from described other base stations is by described other base stations subscriber signal to be detected, according to the detection signal regeneration subscriber signal that receives.
11., wherein, the data that obtain are sent to corresponding gateway in the communication network by R-T unit according to claim 9 or 10 described base stations.
12. according to the described base station of one of claim 9～11, wherein,
Described processing unit obtains media interviews control MAC layer data by subscriber signal being detected and decoding; And the MAC layer data is carried out the upper strata handle, to obtain the IP grouping.
13. according to the described base station of one of claim 9～11, wherein,
Described processing unit is according to the joint detection and decoding result, and this subscriber equipment of serving to this base station by R-T unit sends acknowledgement/non-acknowledgement message.
14. the base station in the communication network comprises that channel condition information determines device, R-T unit and processing unit, wherein,
For the subscriber equipment of this base station institute collaboration services,
Described R-T unit receives subscriber signal from the one or more subscriber equipmenies that comprise this subscriber equipment,
Described channel condition information determines that device determines the channel condition information between this base station and the described one or more subscriber equipment, and
Described processing unit sends to another base station that service is provided for this subscriber equipment with described subscriber signal and described channel condition information by R-T unit.
15. base station according to claim 14, wherein,
Described processing unit quantizes the subscriber signal that receives, and by R-T unit the signal that quantizes is sent to described another base station with determined channel condition information.
16. base station according to claim 14, wherein,
Described processing unit detects obtaining detection signal the subscriber signal that receives, and by R-T unit detection signal is sent to described another base station with determined channel condition information.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012155635A1 (en) * | 2011-08-19 | 2012-11-22 | 中兴通讯股份有限公司 | Extension device, base station and networking method thereof, and antenna feeder sharing system |
| CN103002480A (en) * | 2011-09-09 | 2013-03-27 | 上海贝尔股份有限公司 | Distributed type collaborative detecting method and distributed type collaborative detecting equipment for uplink baseband signals |
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| CN102137517B (en) * | 2010-01-21 | 2015-06-10 | 中兴通讯股份有限公司 | Method and system for realizing collaborative multiple point (CoMP) data transmission/reception |
| CN103299671A (en) * | 2011-03-10 | 2013-09-11 | 株式会社Ntt都科摩 | Method for coordinated multipoint (CoMP) transmission/reception in wireless communication networks with reconfiguration capability |
| CN103299671B (en) * | 2011-03-10 | 2016-11-09 | 株式会社Ntt都科摩 | There is multi-point cooperative (CoMP) transmitting/method of reseptance in the cordless communication network of re-configurability |
| WO2012155635A1 (en) * | 2011-08-19 | 2012-11-22 | 中兴通讯股份有限公司 | Extension device, base station and networking method thereof, and antenna feeder sharing system |
| CN102958067A (en) * | 2011-08-19 | 2013-03-06 | 中兴通讯股份有限公司 | Extending device, base stations, networking method of base stations and shared antenna feeder system |
| CN102958067B (en) * | 2011-08-19 | 2016-08-31 | 南京中兴新软件有限责任公司 | A kind of base station and network-building method thereof and shared antenna-feedback system |
| CN103002480A (en) * | 2011-09-09 | 2013-03-27 | 上海贝尔股份有限公司 | Distributed type collaborative detecting method and distributed type collaborative detecting equipment for uplink baseband signals |
| CN103002480B (en) * | 2011-09-09 | 2016-04-13 | 上海贝尔股份有限公司 | Uplink baseband signal distributions formula collaborative detection method and equipment |
| CN105516030A (en) * | 2014-09-22 | 2016-04-20 | 普天信息技术有限公司 | Method for multi-user joint detection in coordinated multi-point transmission system and base station |
| CN105516030B (en) * | 2014-09-22 | 2018-07-13 | 普天信息技术有限公司 | Multi-user combined detection method and base station in cooperative multicast system |
| CN106169983A (en) * | 2015-05-20 | 2016-11-30 | 恩智浦有限公司 | Use the signal transacting of quantification symbol |
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