CN101594174B - Method and base station for supporting uplink network multiple input multiple output (MIMO) - Google Patents
Method and base station for supporting uplink network multiple input multiple output (MIMO) Download PDFInfo
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- CN101594174B CN101594174B CN200810038424.1A CN200810038424A CN101594174B CN 101594174 B CN101594174 B CN 101594174B CN 200810038424 A CN200810038424 A CN 200810038424A CN 101594174 B CN101594174 B CN 101594174B
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Abstract
The invention provides a method and a base station for supporting uplink network multiple input multiple output (MIMO). The method in the base station comprises the following steps: receiving a user signal from one or a plurality of user equipment containing the user equipment served by the base station and confirming channel state information between the base station and one or a plurality of user equipment; receiving the user signal and the corresponding channel state information from at least one of other base stations cooperatively serving the user equipment; and detecting and decoding the user signal together according to the user signal and the confirmed channel state information which are received by the based station and the user signal and the corresponding channel state information received from at least one of other base stations so as to obtain the data of the user equipment served by the 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 following communication system, 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 the spectrum efficiency being caused by common-channel interference in grid and limits.
In network MIMO, the thought of uplink network MIMO is, group of base stations receives signal with cooperation mode.Can be by carry out uplink network MIMO with joint detection and decoding between multiple base stations, this need to be between the base station cooperating sharing users message and channel condition information.
But the current network architecture can not network enabled MIMO technology.In the prior art, the logical description about how realizing network MIMO technology is only proposed, can be with reference to list of references 1 and 2.The basic thought of network MIMO is, to all baseband signals that receive, can carry out collaborative process.As shown in Figure 1, each user U1, U2, U3 or U4 provide service by multiple 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 mapped in real network entity but do not clearly state.In list of references 1 there is a central location (as shown in Figure 2) in nearly hypothesis, and it knows the instant mimo channel of all users for carrying out collaborative process.Therefore, adopt in this way, radio frequency (RF) front-end processing is just carried out in base station, and the baseband signal of quantification 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 all complete in central location; Especially in the time that cooperative base station quantity increases, situation is more severe.In the time that central location 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 presence service base station, it is responsible for signaling and connects foundation and amendment.But in above-mentioned framework, base station will lose serving BS function, because as mentioned above, base station is just as 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, a kind of method in 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 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 itself receiving 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 to joint detection and decoding, to obtain the data of this subscriber equipment of being served from this base station.
Preferably, if the signal receiving from described other base stations is the detection signal obtaining subscriber signal being detected by described other base stations, can be according to the detection signal receiving, regeneration subscriber signal, and the subscriber signal that the subscriber signal of regeneration and this base station are received itself carries out joint detection and decoding.
Preferably, the method can also comprise: the data that obtain are sent to corresponding gateway in communication network.
Preferably, subscriber signal being carried out to joint detection and decoding can comprise from the step of the data of subscriber equipment with acquisition: subscriber signal is detected and decoded, obtain media interviews control (MAC) layer data; And MAC layer data is carried out to upper strata processing, to obtain IP grouping.
Preferably, the method can also comprise: according to 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, a kind of method in 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 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, the method can also comprise: the subscriber signal receiving is quantized, and the signal of quantification is sent to together with determined channel condition information to described another base station.
Preferably, the method can also comprise: the subscriber signal receiving is detected to obtain detection signal, and detection signal is sent to together with determined channel condition information to described another base station.
According to another aspect of the invention, base station in a kind of communication network is provided, comprise channel condition information determining 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 determining device is determined the channel condition information between this base station and 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 the subscriber signal that receives according to the R-T unit of this base station itself of described processing unit and the definite channel condition information of described channel condition information determining device and subscriber signal and the respective channel state information receiving from described at least one other base station, described subscriber signal is carried out to joint detection and decoding, to obtain the data of this subscriber equipment of being served from this base station.
Preferably, this base station can also comprise regeneration device, described regeneration device is the detection signal obtaining subscriber signal being detected by described other base stations, according to the detection signal regeneration subscriber signal receiving at the subscriber signal receiving from described other base stations.
Preferably, can the data of acquisition be sent to corresponding gateway in communication network by R-T unit.
Preferably, processing unit, by subscriber signal being detected and decoding, obtains media interviews control (MAC) layer data; And MAC layer data is carried out to upper strata processing, to obtain IP grouping.
Preferably, processing unit can be according to 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 channel condition information determining 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 determining device is determined the channel condition information between this base station and described one or more subscriber equipment, and described subscriber signal and described channel condition information are sent to another base station that service is provided for this subscriber equipment by R-T unit by described processing unit.
Preferably, processing unit can quantize the subscriber signal receiving, and by R-T unit, the signal of quantification is sent to together with determined channel condition information to described another base station.
Preferably, processing unit can detect to obtain detection signal to the subscriber signal receiving, and by R-T unit, detection signal is sent to together with determined channel condition information to described another base station.
The method according to this invention and base station, can realize a kind of distributed network architecture of supporting uplink network MIMO, and this distributed network architecture flexibility is high, and the requirement of complexity to base station and ability is lower, thereby be easy to realize.In addition, this framework is consistent with current LTE system architecture.And, in this framework, only have serving BS to be responsible for data detect and decode to, it is carried out upper strata processing forwarding and provides ACK/NACK feedback, because of but effectively simple.
Brief description of the drawings
According to the specific descriptions below in conjunction with accompanying drawing, above-mentioned and other objects of the present invention, feature and advantage will be more clear.In the accompanying drawings:
Fig. 1 shows according to the concept map of 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 according to the schematic diagram of the alone family network MIMO of the embodiment of the present invention;
Fig. 4 shows the schematic diagram of alone according to another embodiment of the present invention family 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 with reference to the accompanying drawings embodiments of the invention in detail.Described embodiment is only the object for example explanation, but not limits the scope of the invention.
For the present invention is clearly described, will describe respectively for two kinds of situations: (1) alone family network MIMO; (2) multiple-user network MIMO.
alone family network MIMO
Alone family network MIMO refers to that multiple base stations provide the situation of service for a subscriber equipment cooperates.
Fig. 3 shows according to the schematic diagram of the alone family network MIMO of the embodiment of the present invention.As shown in Figure 3, comprise according to the communication system 10 of network MIMO of the present invention for implementing: user equipment (UE) 1; The base station BS 1, the BS2 that communicate with user equipment (UE) 1; And gateway GW1, the GW2 corresponding with base station BS 1, BS2.
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 multiple subscriber equipmenies and multiple base station.In this manual, be only to provide service as example taking two base station BSs 1 and BS2 as sole user's equipment UE 1 cooperates, the situation of alone family of the present invention network MIMO 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 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.The definite of serving BS, cooperative base station is known, for example, can determine according to scheduling and resource distribution etc.Because this and purport of the present invention are irrelevant, be not described in detail at this.
Base station can receive signal from subscriber equipment, and determines the channel condition information between itself and subscriber equipment.Determining of this status channel information is known to those skilled in the art, is no longer 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 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 user equipment (UE) 1.
As the cooperative base station of user equipment (UE) 1, base station BS 2 is receiving after subscriber signal, can quantize subscriber signal, to obtain quantized signal r2, then this quantized signal r2 be sent to together with determined channel condition information h12 to the serving BS BS1 of user equipment (UE) 1.At this, the object quantizing is to reduce transinformation.
Now, in serving BS BS1, there is the channel condition information h12 between channel condition information h11 and the subscriber signal r2 receiving from cooperative base station BS2 and BS2 and the UE1 between subscriber signal and determined BS1 and the UE1 himself receiving from subscriber equipment.So, in serving BS BS1, can be according to channel condition information h11 and h12, the subscriber signal that himself is received and the subscriber signal receiving from cooperative base station BS2 carry out joint detection and decoding, 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, with the understanding of the present invention of avoiding confusion at this.
After joint detection and decoding, according to 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 so media interviews control (MAC) protocol Data Unit (PDU), and the processing that can further carry out upper strata (for example, 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, IP grouping is sent to corresponding gateway GW1.
Can see, in the above-described embodiments, for user equipment (UE) 1, by in its serving BS BS1, its data being detected and decoded, obtain MAC layer data (MAC PDU), it is carried out to upper strata (rlc layer) and process and forward, and send ACK/NACK feedback to user equipment (UE) 1.Thereby, no longer need the central location in conventional art.
In addition, owing to not being to complete decoding in central location at serving BS, therefore, compared with conventional art, can reduce to send the delay of ACK/NACK message.
In the above-described embodiments, quantized signal r2 is forwarded to serving BS BS1 by cooperative base station BS2, in serving BS BS1, subscriber signal carried out to joint-detection.Alternatively, cooperative base station BS2 can also detect subscriber signal, and the detection signal obtaining is sent to serving BS BS1, to realize distributed processing, reduces the communication bandwidth requirement between base station.
Fig. 4 shows the schematic diagram of alone according to another embodiment of the present invention family network MIMO.In Fig. 4, the Reference numeral identical with Fig. 3 represents identical parts.Except cooperative base station BS2 is by detection signal
but not quantized signal r2 sends to outside serving BS BS1, 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, after user equipment (UE) 1 receives subscriber signal, first detects subscriber signal, thereby obtains detection signal
afterwards, cooperative base station BS2 is by detection signal
send to serving BS BS1 together with channel condition information h12.Serving BS can use this detection signal
carry out regeneration and receive signal
then can be for completing network MIMO processing.
multiple-user network MIMO
Multiple-user network MIMO refers to the situation that service is provided for multiple subscriber equipment cooperations by multiple base stations simultaneously.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, for implementing communication system 10 according to network MIMO of the present invention ' comprising: user equipment (UE) 1 ', UE2 '; Base station BS 1 ', BS2 '; And with base station BS 1 ', corresponding gateway GW1 ', the GW2 ' of BS2 '.
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 multiple subscriber equipmenies and multiple base station.In this manual, be only taking two base station BSs 1 ' and BS2 ' as two user equipment (UE)s 1 ' and UE2 ' cooperation provide service as 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 " see " 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 base station BS 2 ' be is user equipment (UE) 1 ' the provide cooperative base station of collaboration services.In addition, user equipment (UE) 2 ' in the network of this system, also can " see " 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 base station BS 1 ' be is user equipment (UE) 2 ' the provide cooperative base station of collaboration services.
Shown in Fig. 5 in the situation that, 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 base station BS 1 ' but other base station (not shown) be user equipment (UE) 2 ' cooperative base station; Or, be not BS2 ' but other base station (not shown) be user equipment (UE) 1 ' cooperative base station.Such situation is apparent to those skilled in the art, and the present invention can be applied to these situations certainly.
Equally, base station can receive signal from subscriber equipment, and determines the channel condition information between itself and 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 (by the quantized signal r1 ' obtaining 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 (by the quantized signal r2 ' obtaining 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 ' and BS2 ' all from two identical user equipment (UE)s 1 ' and UE2 ' reception signal.But the present invention is not limited thereto.As mentioned above, base station BS 1 ' and BS2 ' can receive signal from different subscriber equipmenies, the present invention can certainly be applied to such situation.
As user equipment (UE) 1 ' cooperative base station, base station BS 2 ' by quantized signal r2 ' and determined state information h22 ' send to together with h12 ' 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 there is 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 the subscriber signal receiving from cooperative base station BS2 carry out joint detection and decoding, to obtain the data of user UE1 '.
After joint detection and decoding, according to 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 so MAC PDU, and can further carry out the processing on upper strata.Afterwards, 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 (by the quantized signal r2 ' obtaining 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 (by the quantized signal r1 ' obtaining 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 ' by quantized signal r1 ' and determined channel condition information h11 ' send to together with h21 ' 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 there is 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 the signal receiving from cooperative base station BS1 ' carry out joint detection and decoding, to obtain the data of user UE2 '.
After joint detection and decoding, according to 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 so MAC PDU, and can further carry out the processing on upper strata.Afterwards, IP grouping is sent to corresponding gateway GW2 '.
Can see, in the above-described embodiments, can realize equally the effect that can reach embodiment illustrated in fig. 3.That is, do not need to use central location, in the serving BS of subscriber equipment, subscriber signal detected and decode and further process, and sending ACK/NACK feedback to subscriber equipment, thereby can reduce to send the delay of ACK/NACK message.
Similarly, in the embodiment shown in fig. 5, can implement equally distributed processing.
Fig. 6 shows the schematic diagram of multiple-user network MIMO according to another embodiment of the present invention.In Fig. 6, the Reference numeral identical with Fig. 5 represents identical parts.Except cooperative base station BS1 '/BS2 ' is by detection signal vector
but not quantized signal r1 '/r2 ' sends to outside serving BS BS2 '/BS1 ', 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 first detected, thereby obtain detection signal vector
.Afterwards, user equipment (UE) 2 ' cooperative base station BS1 ' by detection signal vector
with channel condition information h11 ' send to together with h21 ' user equipment (UE) 2 ' serving BS BS2 '.User equipment (UE) 2 ' serving BS BS2 ' then can use this detection signal vector
carry out regeneration and receive signal, then can be for completing network MIMO processing.
Equally, user equipment (UE) 1 ' cooperative base station BS2 ' from user equipment (UE) 2 ' and after UE1 ' receives subscriber signal, subscriber signal is first detected, thereby obtain detection signal vector
afterwards, user equipment (UE) 1 ' cooperative base station BS2 ' by detection signal vector
with channel condition information h22 ' send to together with h12 ' user equipment (UE) 1 ' serving BS BS1 '.User equipment (UE) 1 ' serving BS BS1 ' then can use this detection signal vector
carry out regeneration and receive signal, then can be for completing network MIMO processing.
Embodiment in Fig. 6 can realize the effect that can reach embodiment illustrated in fig. 4 equally., can reduce the communication bandwidth requirement between base station.
In addition, known according to above description, can comprise according to base station of the present invention: R-T unit, 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 determining device, for determining the channel condition information between subscriber equipment; And processing unit, for carrying out the present invention's various processing, for example, carry out joint detection and decoding, the processing to signal etc.In addition, base station for example can also comprise 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 is only used to illustrate the present invention, and do not really want to limit the present invention.These amendments and replacement do not depart from spirit of the present invention and principle, it may occur to persons skilled in the art that multiple amendment and replacement to these embodiment, within should drop on the scope of the invention of claims restriction.
Claims (16)
1. the method in 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 described one or more subscriber equipment;
From receive subscriber signal and the corresponding channel condition information of this subscriber equipment at least one other base station of this subscriber equipment collaboration services; And
The corresponding described channel condition information receiving according to the determined channel condition information in this base station itself and from described at least one other base station, the described subscriber signal of the described subscriber signal of this subscriber equipment that this base station is received itself and this equipment of receiving from described at least one other base station carries out joint detection and decoding, to obtain the data of this subscriber equipment of being served from this base station.
2. method according to claim 1, also comprises:
If the signal receiving from described other base stations is the detection signal obtaining subscriber signal being detected by described other base stations, according to the detection signal receiving, regeneration subscriber signal, and the subscriber signal that the subscriber signal of regeneration and this base station are received itself carries 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 communication network.
4. method according to claim 1 and 2, wherein, carries out joint detection and decoding to subscriber signal, comprises to obtain from the step of the data of this subscriber equipment:
Subscriber signal is detected and decoded, obtain media interviews control MAC layer data: and
MAC layer data is carried out to upper strata processing, to obtain IP grouping.
5. method according to claim 1 and 2, also comprises:
According to joint detection and decoding result, this subscriber equipment of serving to this base station sends acknowledgement/non-acknowledgement message.
6. the method in base station, comprising:
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 described one or more subscriber equipment;
Subscriber signal and the described channel condition information of this subscriber equipment are provided to another base station that service is provided for this subscriber equipment, so that by described another base station based on itself determined channel condition information and the described channel condition information that provided by described base station, the subscriber signal of the subscriber signal of this subscriber equipment that itself is received and this subscriber equipment of being provided by described base station carries out joint detection and decoding, thereby obtains the data from this subscriber equipment.
7. method according to claim 6, also comprises:
The subscriber signal receiving is quantized, and the signal of quantification is sent to together with determined channel condition information to described another base station.
8. method according to claim 6, also comprises:
The subscriber signal receiving is detected to obtain detection signal, and detection signal is sent to together with determined channel condition information to described another base station.
9. the base station in communication network, comprises channel condition information determining 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 determining device is determined the channel condition information between this base station and described one or more subscriber equipment,
Described R-T unit is from receive subscriber signal and the corresponding channel condition information of this subscriber equipment at least one other base station of this subscriber equipment collaboration services, and
The corresponding described channel condition information that the described channel condition information that described processing unit is determined according to described channel condition information determining device and described R-T unit receive from described at least one other base station, the subscriber signal of the subscriber signal that the R-T unit of this base station itself is received and this subscriber equipment of receiving from least one other base station carries out joint detection and decoding, to obtain the data of this subscriber equipment of being served from this base station.
10. base station according to claim 9, also comprise regeneration device, described regeneration device is the detection signal obtaining subscriber signal being detected by described other base stations, according to the detection signal regeneration subscriber signal receiving at the subscriber signal receiving from described other base stations.
11. according to the base station described in claim 9 or 10, wherein, by R-T unit, the data of acquisition is sent to corresponding gateway in communication network.
12. according to the base station described in claim 9 or 10, wherein,
Described processing unit, by subscriber signal being detected and decoding, obtains media interviews control MAC layer data; And MAC layer data is carried out to upper strata processing, to obtain IP grouping.
13. according to the base station described in claim 9 or 10, wherein,
Described processing unit is according to joint detection and decoding result, and this subscriber equipment of serving to this base station by R-T unit sends acknowledgement/non-acknowledgement message.
Base station in 14. 1 kinds of communication networks, comprises channel condition information determining 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 determining device is determined the channel condition information between this base station and described one or more subscriber equipment, and
The subscriber signal of this subscriber equipment and described channel condition information are sent to another base station that service is provided for this subscriber equipment by R-T unit by described processing unit, so that by described another base station based on itself determined channel condition information and the described channel condition information that sent by described processing unit, the subscriber signal of the subscriber signal of this subscriber equipment that itself is received and this subscriber equipment of being sent by described processing unit carries out joint detection and decoding, thereby obtains the data from this subscriber equipment.
15. base stations according to claim 14, wherein,
Described processing unit quantizes the subscriber signal receiving, and by R-T unit, the signal of quantification is sent to together with determined channel condition information to described another base station.
16. base stations according to claim 14, wherein,
Described processing unit detects to obtain detection signal to the subscriber signal receiving, and by R-T unit, detection signal is sent to together with determined channel condition information to described another base station.
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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 |
| EP2498530A1 (en) * | 2011-03-10 | 2012-09-12 | NTT DoCoMo, Inc. | Method for coordinated multipoint (CoMP) transmission/reception in wireless communication networks with reconfiguration capability |
| 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 |
| 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 |
| 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 |
| EP3096479A1 (en) * | 2015-05-20 | 2016-11-23 | Nxp B.V. | Signal processing using quantized symbols |
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