CN101789811B - Method for information interaction and data processing in communication system, system and base station - Google Patents
Method for information interaction and data processing in communication system, system and base station Download PDFInfo
- Publication number
- CN101789811B CN101789811B CN 200910045887 CN200910045887A CN101789811B CN 101789811 B CN101789811 B CN 101789811B CN 200910045887 CN200910045887 CN 200910045887 CN 200910045887 A CN200910045887 A CN 200910045887A CN 101789811 B CN101789811 B CN 101789811B
- Authority
- CN
- China
- Prior art keywords
- terminal equipment
- base station
- corresponding terminal
- serving
- data
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Mobile Radio Communication Systems (AREA)
Abstract
The invention provides a method for information interaction and data processing in a communication system which supports the multi-input and multi-output (MIMO) of an uplink. In the method, each of the multiple base stations respectively receives data signals from at least one terminal device, and obtains the signal channel state information between the base station and the at least one terminal device, wherein one of the base stations is used as the service base station of the corresponding terminal device of the at least one terminal device; the rest base stations are used as the auxiliary base stations except the service base station of the corresponding terminal device; one of the plurality of base stations is selected and used as a processing base station; the selected base station is used for joint detection and decoding according to the data signals of the at least one terminal device and received by each of the plurality of base stations, and according to the obtained signal channel state information between the base station and the at least one terminal device, so as to obtain the data of a media access control MAC layer and from the at least one terminal device.
Description
Technical field
The present invention relates to wireless communication field, more specifically, relate to a kind of method, system and base station of in the communication system of support uplink network MIMO (multiple-input and multiple-output), carrying out information interaction and data processing, can utilize the centralized network structure of support uplink network MIMO to realize detection and the decoding of data-signal, the method and system are particularly suitable for advanced IMT (IMT-advanced) (international mobile communication) system.
Background technology
As is known, presence of intercell interference is the main cause that causes the capacity limit in the future cellular system.Network MIMO has proved the effective technology that a kind of up link at cellular network overcomes the spectrum efficiency restriction that is brought by common-channel interference.The main thought of network MIMO is that the sending and receiving signal is come according to the mode of cooperation in a plurality of base stations.On up link, can utilize the joint detection and decoding of striding a plurality of base stations to carry out network MIMO, this need to share signal and the channel condition information that receives between a plurality of base stations.Current network configuration can not network enabled MIMO function, therefore, needs to propose the up link network MIMO that a kind of new centralized network structure is supported the IMT AS.
At present also do not support the network configuration of the network MIMO in the existing system, and only exist about how realizing the logical description of network MIMO technology.The basic thought of up link network MIMO is to process collaboratively all base station signals that receive as shown in Figure 1.Most of documents are only emphasized this technology and performance, but are not clearly explained how logic function is mapped to real network.
Document 1 (" System Aspects andPerformance of MIMO in Cellular Networks " IEEE Trans.WirelessCommun., Oct.2007 that the people such as H.Huang, A.Hottinen, M.Shafi, P.J.Smith, M.Trivellato and R.Valenzuela write) has only been supposed the centralized unit (referring to Fig. 2) that has the instantaneous mimo channel of all users of knowing to carry out collaborative process.Therefore, by this method, these base stations are only carried out the RF front-end processing and quantized base band signal are sent to central location and carry out joint-detection.This structure has two defectives: 1) this centralized approach has very high requirement to the capacity of central location, realizes at central location because all are processed all, and particularly the quantity along with cooperative base station increases; And 2) itself and Exist Network Structure are inconsistent.In current LTE (Long Term Evolution) system, always exist and be responsible for the serving BS NodeB that signaling connects foundation and revises, but in said structure, the base station will lose serving BS NodeB function.
Summary of the invention
For the defects that overcomes prior art has proposed the present invention.The objective of the invention is to propose a kind of method, system and base station that information interaction and data are processed of in the communication system of support uplink network MIMO, carrying out, can utilize the centralized network structure of support uplink network MIMO to realize detection and the decoding of data-signal.
According to the present invention, a kind of method of carrying out information interaction and data processing in the communication system of support uplink network multiple-input and multiple-output MIMO has been proposed, comprise: each in a plurality of base stations is respectively from least one terminal equipment reception of data signal, and obtain channel condition information between this base station and described at least one terminal equipment, one of wherein said a plurality of base stations are as the serving BS of the corresponding terminal equipment at least one terminal equipment, and all the other base stations are as the cooperative base station outside the serving BS of described corresponding terminal equipment; Select one of described a plurality of base stations as processing the base station; And selected processing base station is according to carrying out joint detection and decoding by the channel condition information between the data-signal of each at least one the received terminal equipment in a plurality of base stations and this base station that obtains and described at least one terminal equipment, to obtain to come from the media access control MAC layer data of described at least one terminal equipment.
Preferably, the channel condition information between this base station that obtains and described at least one terminal equipment is estimated to obtain by pilot tone.
Preferably, in other base stations in a plurality of base stations except selected processing base station each is sent to the channel condition information between the data-signal of at least one received terminal equipment and this base station that obtains and described at least one terminal equipment and processes the base station, in order to carry out joint detection and decoding.
Preferably, by selection, predefined order or product algorithm carry out processing the selection of base station at random.
Preferably, if selected processing base station is the serving BS of corresponding terminal equipment but not cooperative base station, in the situation that the MAC of corresponding terminal equipment layer data is correctly decoded, then described serving BS will turn back to for the affirmative acknowledgement ACK of described corresponding terminal equipment described corresponding terminal equipment.
Preferably, if selected processing base station is the serving BS of corresponding terminal equipment but not cooperative base station, in the situation that the MAC of corresponding terminal equipment layer data is not correctly decoded, then described serving BS will turn back to for the negative response NACK of described corresponding terminal equipment described corresponding terminal equipment.
Preferably, described serving BS carries out upper layer operation to the MAC layer data of described corresponding terminal equipment, thereby transmits upper layer data to gateway.
Preferably, if selected processing base station is not the serving BS of corresponding terminal equipment but cooperative base station, in the situation that the MAC of corresponding terminal equipment layer data is correctly decoded, the serving BS that described processing base station will be sent to described corresponding terminal equipment for MAC layer data and the affirmative acknowledgement ACK of described corresponding terminal equipment.
Preferably, if selected processing base station is not the serving BS of corresponding terminal equipment but cooperative base station, in the situation that the MAC of corresponding terminal equipment layer data is not correctly decoded, described processing base station will be sent to for the negative response NACK of described corresponding terminal equipment the serving BS of described corresponding terminal equipment.
Preferably, described serving BS will turn back to described corresponding terminal equipment from processing the affirmative acknowledgement ACK for described corresponding terminal equipment that the base station send.
Preferably, described serving BS carries out upper layer operation to the MAC layer data for described corresponding terminal equipment that sends from described processing base station, thereby transmits upper layer data to gateway.
Preferably, described serving BS will turn back to described corresponding terminal equipment from processing the negative response NACK that the base station send.
Preferably, described upper strata is operating as Radio Link control rlc layer operation and packet data convergence protocol PCDP layer operation, and described upper layer data is IP protocol Data Unit PDU.
Preferably, described MAC layer data is Medium Access Control (MAC) Protocol Data Unit PDU.
Preferably, described communication system is IMT-Advanced IMT system.
In addition, according to the present invention, proposed a kind of system that carries out information interaction and data processing in the communication system of support uplink network multiple-input and multiple-output MIMO, comprising: at least one terminal equipment is used for sending data-signals to a plurality of base stations; And a plurality of base stations, in described a plurality of base station each is respectively from least one terminal equipment reception of data signal, and obtain channel condition information between this base station and described at least one terminal equipment, one of wherein said a plurality of base stations are as the serving BS of the corresponding terminal equipment at least one terminal equipment, and all the other base stations are as the cooperative base station outside the serving BS of described corresponding terminal equipment; Wherein, select one of described a plurality of base stations as processing the base station, and selected processing base station is according to carrying out joint detection and decoding by the channel condition information between the data-signal of each at least one the received terminal equipment in a plurality of base stations and this base station that obtains and described at least one terminal equipment, to obtain to come from the media access control MAC layer data of described at least one terminal equipment.
In addition, according to the present invention, a kind of processing base station in the communication system of support uplink network multiple-input and multiple-output MIMO has been proposed, comprise: receiving system, be used for from least one terminal equipment reception of data signal, and from least one other base station each receives the channel condition information between the data-signal of at least one terminal equipment and each and described at least one terminal equipment in described at least one other base station; Channel condition information is determined device, is used for obtaining the channel condition information between this base station and described at least one terminal equipment; And processing unit, be used for according to utilizing receiving system from the received data-signal of described at least one terminal equipment by this base station, and utilize this base station that channel condition information determines that device obtains and the channel condition information between described at least one terminal equipment, and by the data-signal of receiving system each at least one terminal equipment that receives from least one other base station, and the channel condition information between each and described at least one terminal equipment in described at least one other base station carries out joint detection and decoding, to obtain to come from the media access control MAC layer data of described at least one terminal equipment.
Preferably, this processes the base station as the serving BS of the corresponding terminal equipment in described at least one terminal equipment.
Preferably, this processing base station is not the serving BS of the corresponding terminal equipment in described at least one terminal equipment, but as the cooperative base station of described corresponding terminal equipment.
In addition, according to the present invention, a kind of method of carrying out information interaction and data processing in the communication system of support uplink network multiple-input and multiple-output MIMO has been proposed, comprise: each in a plurality of base stations is respectively from least one terminal equipment reception of data signal, and obtain channel condition information between this base station and described at least one terminal equipment, one of wherein said a plurality of base stations are as the serving BS of the corresponding terminal equipment at least one terminal equipment, and all the other base stations are as the cooperative base station outside the serving BS of described corresponding terminal equipment; In described a plurality of base station each is sent to the processing base station with data-signal and the channel condition information between this base station and described at least one terminal equipment of at least one received terminal equipment; And process the base station and carry out joint detection and decoding according to the data-signal of each at least one terminal equipment that sends from described a plurality of base stations and the channel condition information between this base station that obtains and described at least one terminal equipment, to obtain to come from the media access control MAC layer data of described at least one terminal equipment.
Preferably, in the situation that the MAC of corresponding terminal equipment layer data is correctly decoded, the serving BS that described processing base station will be sent to described corresponding terminal equipment for MAC layer data and the affirmative acknowledgement ACK of described corresponding terminal equipment, and by this serving BS this affirmative acknowledgement ACK is turned back to described corresponding terminal equipment.
Preferably, in the situation that the MAC of corresponding terminal equipment layer data is not correctly decoded, described processing base station will be sent to for the negative response NACK of this corresponding terminal equipment the serving BS of described corresponding terminal equipment, and by this serving BS this negative response NACK be turned back to described corresponding terminal equipment.
In addition, according to the present invention, proposed a kind of system that carries out information interaction and data processing in the communication system of support uplink network multiple-input and multiple-output MIMO, comprising: at least one terminal equipment is used for sending data-signals to a plurality of base stations; A plurality of base stations, in a plurality of base stations each is respectively from least one terminal equipment reception of data signal, and obtain channel condition information between this base station and described at least one terminal equipment, one of wherein said a plurality of base stations are as the serving BS of the corresponding terminal equipment at least one terminal equipment, and all the other base stations are as the cooperative base station outside the serving BS of described corresponding terminal equipment, and each data-signal with at least one received terminal equipment in described a plurality of base station, and the channel condition information between this base station and described at least one terminal equipment is sent to the processing base station; And processing base station, be used for basis and carry out joint detection and decoding from the data-signal of each at least one terminal equipment that sends of described a plurality of base stations and the channel condition information between this base station that obtains and described at least one terminal equipment, to obtain to come from the media access control MAC layer data of described at least one terminal equipment.
In addition, according to the present invention, a kind of processing base station in the communication system of support uplink network multiple-input and multiple-output MIMO has been proposed, comprise: receiving system is used for receiving channel condition information between the data-signal of at least one terminal equipment and each and described at least one terminal equipment described a plurality of base station from each of a plurality of base stations; And processing unit, carry out joint detection and decoding according to the channel condition information between the data-signal of each at least one terminal equipment that receives from a plurality of base stations and each and described at least one terminal equipment in described a plurality of base station, to obtain to come from the media access control MAC layer data of described at least one terminal equipment.
Preferably, described processing base station is another base station except a plurality of base stations.
Description of drawings
Below in conjunction with the detailed description of preferred embodiment of accompanying drawing to adopting, above-mentioned purpose of the present invention, advantage and feature will become apparent by reference, wherein:
Fig. 1 is the schematic diagram for explanation network MIMO technology;
Fig. 2 shows the schematic diagram of logical construction of centralized processing of the network MIMO of prior art;
Fig. 3 shows according to the schematic diagram of the network configuration of the up link network MIMO of first embodiment of the invention (SU-MIMO scene, base station 1 is as processing the base station);
Fig. 4 shows according to the schematic diagram of the network configuration of the up link network MIMO of first embodiment of the invention (SU-MIMO scene, base station 2 is as processing the base station);
Fig. 5 shows according to the schematic diagram of the network configuration of the up link network MIMO of first embodiment of the invention (MU-MIMO scene, base station 2 is as processing the base station);
Fig. 6 shows the flow chart according to the method for carrying out information interaction and data processing of first embodiment of the invention;
Fig. 7 shows the block diagram according to the processing base station of first embodiment of the invention;
Fig. 8 shows according to the schematic diagram of the network configuration of the up link network MIMO of second embodiment of the invention (SU-MIMO scene, base station 3 is as processing the base station);
Fig. 9 shows according to the schematic diagram of the network configuration of the up link network MIMO of second embodiment of the invention (MU-MIMO scene, base station 3 is as processing the base station);
Figure 10 shows the flow chart according to the method for carrying out information interaction and data processing of second embodiment of the invention; And
Figure 11 shows the block diagram according to the processing base station of second embodiment of the invention.
Embodiment
The present invention program's main thought comprise following some:
1) proposes the centralized network structure and come the support uplink network MIMO;
2) in this application by detection and the decoding of carrying out data in the base station that is called as " processing base station ";
3) if processing the base station is not cooperative base station, transmit data and the channel condition information that is used for the network MIMO processing from cooperative base station to processing the base station;
4) if processing the base station is not serving BS, transmit data and the channel condition information that is used for the network MIMO processing from serving BS to processing the base station;
5) finish joint detection and decoding by processing in the base station, that is, MAC (media access control) layer data MAC PDU (protocol Data Unit) should only derive in processing the base station;
6) transmit MAC layer data and ACK (affirmative acknowledgement)/NACK (negative response) from processing the base station to the serving BS of terminal equipment UE;
7) finish the upper layer operation of MAC PDU at serving BS, for example RLC (Radio Link control) layer operation and PDCP (packet data convergence protocol) layer operation transmit data I P (Internet Protocol) PDU from serving BS to gateway;
8) only transmit ACK/NACK information from serving BS to UE;
9) in the present invention, the mechanism which base station is defined as processing the base station can be flexibly, specifically can be in such a way:
A) at random system of selection;
B) according to predefined order;
C) by such as product algorithms such as multi-cell scheduling algorithms.
The scheme of first embodiment of the invention is described in two kinds of scenes below in conjunction with accompanying drawing 3 to 8.
Scheme 1:SU-network MIMO (alone family network MIMO)
This network MIMO only is applied to alone family.User of a plurality of base station services.Shown in Fig. 3 and 4, with a user's the terminal equipment that utilizes two base stations as example: base station 1 is the serving BS of this terminal equipment, and base station 2 is cooperative base station.
Two base stations can receive signal from this terminal equipment, and will carry out the joint detection and decoding to the data of this terminal equipment.H11 is the channel condition information between this terminal equipment and the base station 1, h12 is the channel condition information between this terminal equipment and the base station 2, r1 is the data-signal that 1 place receives from this terminal equipment in the base station, and r2 is the data-signal that 2 places receive from this terminal equipment in the base station.Here, channel condition information h11 and h12 are that 1 and 2 places obtain by modes such as pilot tone estimations in the base station respectively.
As shown in Figure 3, if the processing base station of determining is base station 1,2 (cooperative base station) are sent to base station 1 (processing base station) from the base station for data-signal r2 that then will 2 places receive in the base station and channel condition information h12.Process 1 place, base station, carrying out joint detection and decoding according to data-signal r1 and r2 and channel condition information h11 and h12, to obtain the MAC PDU of this portable terminal.If these data are correctly decoded, then return ACK to this terminal equipment and reply, and 1 place carries out the upper strata processing to resulting MAC PDU in the base station, then will process the IP grouping that obtains by the upper strata and be sent to gateway from this base station 1 as serving BS.If these data are not correctly decoded, then return NACK to this terminal equipment and reply.In this case because this processings base station also is serving BS 1, thereby unnecessary to the base station 2 transmission ACK/NACK and MAC PDU.
As shown in Figure 4, if the processing base station of determining is base station 2,1 (serving BS) is sent to base station 2 (processing base station) from the base station for data-signal r1 that then will 1 place receives in the base station and channel condition information h11.Process 2 places, base station, carrying out joint detection and decoding according to data-signal r1 and r2 and channel condition information h11 and h12, to obtain the MAC PDU of this portable terminal.If these data are correctly decoded, then reply and resulting MAC PDU to the serving BS 1 transmission ACK as this terminal equipment from processing base station 2.Then, 1 returns ACK to this terminal equipment and replys from the base station, and at serving BS 1 place of this terminal equipment to the 2 MAC PDU that send carry out the upper strata and process from the base station, then will process the IP that obtains by the upper strata and divide into groups to be sent to gateway from this base station 1.If these data are not correctly decoded, then the 1 transmission NACK of the serving BS from processing base station 2 to this terminal equipment replys, and returns NACK by this base station 1 to this terminal equipment and reply.In this case, because this processings base station serving BS that is not this portable terminal but cooperative base station, thereby need to be from processing base station 2 to cooperative base station 1 transmission ACK/NACK and the MAC PDU as the serving BS of this portable terminal.
Can see that therefrom serving BS being become process the base station is method for optimizing in SU-network MIMO scene, because do not need to transmit from other base stations to serving BS ACK/NACK and MACPDU.When determining to process the base station, can consider this principle with high priority.But Specific Principles can be flexibly, and is not limited to this.
Scheme 2:MU-network MIMO (multiple-user network MIMO)
The MU-network MIMO is the scene of being served simultaneously a plurality of users by a plurality of base stations.
As shown in Figure 5, adopt the terminal equipment of two users with two base stations as example, base station 1 is the serving BS of terminal equipment 1 and base station 2 is serving BSs of terminal equipment 2.
Two base stations 1 and 2 all can receive signals from two terminal equipments, then carry out joint detection and decoding to the data from terminal equipment.H11 is the channel condition information between terminal equipment 1 and the base station 1, h22 is the channel condition information between terminal equipment 2 and the base station 2, h12 is the channel condition information between terminal equipment 1 and the base station 2, h21 is the channel condition information between terminal equipment 2 and the base station 1, r1 is the data-signal from two terminal equipments 1 and 2 that 1 place receives in the base station, and r2 is the data-signal from two terminal equipments 1 and 2 that 2 places receive in the base station.Here, base station 2 is defined as processing the base station, and the data-signal r1 at 1 place, base station and channel information h11 and h21 1 are sent to and process base station 2 from the base station.Process 2 places, base station, carrying out joint detection and decoding according to data-signal r1 and r2 and channel condition information h11 and h12, to obtain to come from respectively the MAC PDU of terminal equipment 1 and 2.
If come from that the MAC PDU of terminal equipment 2 is correctly decoded and because the serving BS that this processing base station 2 also is terminal equipment 2, then will be replied for the ACK of this terminal equipment 2 by base station 2 and turn back to this terminal equipment 2, and 2 places carry out the upper strata processing to correct decoded MAC PDU in the base station, then will process the IP grouping that obtains by the upper strata and be sent to gateway from this base station 2.Correctly do not decoded if come from the MAC PDU of terminal equipment 2, then return NACK from this base station 2 to this terminal equipment 2 and reply.
In addition, if come from that the MAC PDU of terminal equipment 1 is correctly decoded and owing to process the serving BS of base station 2 and non-terminal equipment 1 but cooperative base station, then will reply 2 base stations 1 that are sent to as the serving BS of this terminal equipment 1 from the base station for MAC PDU and the ACK after being correctly decoded of this terminal equipment 1.Then, 1 returns ACK to this terminal equipment 1 and replys from the base station, and then 1 place will process the IP that obtains by the upper strata and divide into groups to be sent to gateway from this base station 1 the 2 MAC PDU that send carry out the upper strata and process from the base station in the base station.Correctly do not decoded if come from the MACPDU of terminal equipment 1, then reply to transmitting NACK as the base station 1 of the serving BS of this terminal equipment 1 from processing base station 2, and return NACK by this base station 1 to this terminal equipment and reply.
Fig. 6 shows the flow chart according to the method for carrying out information interaction and data processing of the embodiment of the invention.
As shown in Figure 6, according to the present invention, in step 601, in a plurality of base stations each is respectively from least one terminal equipment reception of data signal, and obtain channel condition information between this base station and described at least one terminal equipment, one of wherein said a plurality of base stations are as the serving BS of the corresponding terminal equipment at least one terminal equipment, and all the other base stations are as the cooperative base station outside the serving BS of described corresponding terminal equipment.In step 603, select one of described a plurality of base stations as processing the base station.In step 605, selected processing base station is according to carrying out joint detection and decoding by the channel condition information between the data-signal of each at least one the received terminal equipment in a plurality of base stations and this base station that obtains and described at least one terminal equipment, to obtain to come from the media access control MAC layer data of described at least one terminal equipment.
If selected processing base station is the serving BS of corresponding terminal equipment but not cooperative base station, in the situation that the MAC of corresponding terminal equipment layer data is correctly decoded, then described serving BS will turn back to for the affirmative acknowledgement ACK of described corresponding terminal equipment described corresponding terminal equipment.Described serving BS carries out upper layer operation to the MAC layer data of described corresponding terminal equipment, thereby transmits upper layer data to gateway.If selected processing base station is the serving BS of corresponding terminal equipment but not cooperative base station, in the situation that the MAC of corresponding terminal equipment layer data is not correctly decoded, then described serving BS will turn back to for the negative response NACK of described corresponding terminal equipment described corresponding terminal equipment.
In addition, if selected processing base station is not the serving BS of corresponding terminal equipment but cooperative base station, in the situation that the MAC of corresponding terminal equipment layer data is correctly decoded, the serving BS that described processing base station will be sent to described corresponding terminal equipment for MAC layer data and the affirmative acknowledgement ACK of described corresponding terminal equipment.The affirmative acknowledgement ACK for described corresponding terminal equipment that described serving BS will send from the processing base station turns back to described corresponding terminal equipment.Described serving BS also carries out upper layer operation to the MAC layer data for described corresponding terminal equipment that sends from described processing base station, thereby transmits upper layer data to gateway.If selected processing base station is not the serving BS of corresponding terminal equipment but cooperative base station, in the situation that the MAC of corresponding terminal equipment layer data is not correctly decoded, described processing base station will be sent to for the negative response NACK of described corresponding terminal equipment the serving BS of described corresponding terminal equipment.The negative response NACK that described serving BS will send from the processing base station turns back to described corresponding terminal equipment.
Fig. 7 shows the block diagram according to the processing base station of first embodiment of the invention.
As shown in Figure 7, the treatment in accordance with the present invention base station comprises that receiving system 701, channel condition information determine device 703 and processing unit 705.Receiving system 701 can be from least one terminal equipment reception of data signal, and from least one other base station each receives the channel condition information between the data-signal of at least one terminal equipment and each and described at least one terminal equipment in described at least one other base station.Channel condition information determines that device 703 can obtain the channel condition information between this base station and described at least one terminal equipment.Processing unit 705 can be according to utilized receiving system from the received data-signal of described at least one terminal equipment by this base station, and utilize this base station that channel condition information determines that device obtains and the channel condition information between described at least one terminal equipment, and by the data-signal of receiving system each at least one terminal equipment that receives from least one other base station, and the channel condition information between each and described at least one terminal equipment in described at least one other base station carries out joint detection and decoding, to obtain to come from the media access control MAC layer data of described at least one terminal equipment.
To Figure 11 the second embodiment of the present invention is described below with reference to Fig. 8.Different from the first embodiment, in a second embodiment, the data-signal that a plurality of base stations will receive from terminal equipment and channel condition information send to be processed the base station and processes, process here the base station and not as the first embodiment like that from the terminal equipment reception of data signal but with respect to self-existent base station, a plurality of base stations.
The below also is described respectively in connection with alone family network MIMO (as shown in Figure 8) and multiple-user network MIMO (as shown in Figure 9).
Scheme 1:SU-network MIMO (alone family network MIMO)
As shown in Figure 8, base station 1 and 2 is cooperative base station, and base station 3 is for processing the base station, and base station 1 is the serving BS of the terminal equipment at the alone family shown in the figure, and base station 2 is cooperative base station.
Two base stations 1 and 2 can be respectively from this terminal equipment reception of data signal, and will be by the joint detection and decoding of processing base station 3 and carrying out the data of this terminal equipment.H11 is the channel condition information between this terminal equipment and the base station 1, h12 is the channel condition information between this terminal equipment and the base station 2, r1 is the data-signal that 1 place receives from this terminal equipment in the base station, and r2 is the data-signal that 2 places receive from this terminal equipment in the base station.Here, channel condition information h11 and h12 are that 1 and 2 places obtain by modes such as pilot tone estimations in the base station respectively.
Serving BS 1 is sent to processing base station 3 with data-signal r1 and channel condition information h11, and cooperative base station 2 is sent to processing base station 3 with data-signal r2 and channel condition information h12.Process base station 3 and carry out joint detection and decoding according to data-signal r1 and r2 and channel condition information h11 and h12, to obtain the MAC PDU of this portable terminal.
If these data are correctly decoded, then the serving BS 1 of base station 3 to this terminal equipment transmits MAC PDU and ACK replys by processing, and by serving BS 1 this ACK replied and to return to this portable terminal.1 place also carries out the upper strata processing to resulting MAC PDU in the base station, then will process the IP grouping that obtains by the upper strata and be sent to gateway from this serving BS 1.If these data are not correctly decoded, then return to this portable terminal by processing that the serving BS 1 of base station 3 to this terminal equipment transmits that NACK replys and by serving BS 1 this NACK being replied.In this case, because base station 2 is not the serving BS of this terminal equipment but cooperative base station, thereby unnecessaryly 2 transmit ACK/NACK and MAC PDU to the base station.
Scheme 2:MU-network MIMO (multiple-user network MIMO)
As shown in Figure 9, adopt the terminal equipment of two users with two base stations as example, base station 1 is the serving BS of terminal equipment 1 and base station 2 is serving BSs of terminal equipment 2, and base station 3 is to process the base station.
Two base stations 1 and 2 all can receive signals from two terminal equipments.H11 is the channel condition information between terminal equipment 1 and the base station 1, h22 is the channel condition information between terminal equipment 2 and the base station 2, h12 is the channel condition information between terminal equipment 1 and the base station 2, h21 is the channel condition information between terminal equipment 2 and the base station 1, r1 is the data-signal from two terminal equipments 1 and 2 that 1 place receives in the base station, and r2 is the data-signal from two terminal equipments 1 and 2 that 2 places receive in the base station.
In this case, the data-signal r1 at 1 place, base station and channel information h11 and h21 be sent to process base station 3, and the data-signal r2 at 2 places, base station and channel information h12 and h22 be sent to process base station 3.Process 3 places, base station, carrying out joint detection and decoding according to data-signal r1 and r2 and channel condition information h11 and h12, to obtain to come from respectively the MAC PDU of terminal equipment 1 and 2.
If coming from the MAC PDU of terminal equipment 2 is correctly decoded, then will reply the serving BS 2 that is sent to as this terminal equipment 2 with MAC PDU and ACK by processing base station 3, and will be replied for the ACK of this terminal equipment 2 by base station 2 and turn back to this terminal equipment 2.2 places also carry out the upper strata processing to correct decoded MAC PDU in the base station, then will process the IP grouping that obtains by the upper strata and be sent to gateway from this base station 2.Correctly do not decoded if come from the MAC PDU of terminal equipment 2, then from processing base station 3 NACK is replied the serving BS 2 that is sent to as this terminal equipment 2, and return NACK by serving BS 2 to this terminal equipment 2 and reply.
In addition, if coming from the MAC PDU of terminal equipment 1 is correctly decoded, then by processing base station 3 MAC PDU and ACK are replied the serving BS 1 that is sent to as this terminal equipment 1, and will be replied for the ACK of this terminal equipment 1 by base station 1 and turn back to this terminal equipment 1.1 place also carries out the upper strata processing to correct decoded MAC PDU in the base station, then will process the IP grouping that obtains by the upper strata and be sent to gateway from this base station 1.Correctly do not decoded if come from the MAC PDU of terminal equipment 1, then from processing base station 3 NACK is replied the serving BS 1 that is sent to as this terminal equipment 1, and return NACK by serving BS 1 to this terminal equipment 1 and reply.
Figure 10 shows the flow chart according to the method for carrying out information interaction and data processing of second embodiment of the invention.
As shown in figure 10, according to the present invention, in step 1001, in a plurality of base stations each is respectively from least one terminal equipment reception of data signal, and obtain channel condition information between this base station and described at least one terminal equipment, one of wherein said a plurality of base stations are as the serving BS of the corresponding terminal equipment at least one terminal equipment, and all the other base stations are as the cooperative base station outside the serving BS of described corresponding terminal equipment.In step 1003, each in described a plurality of base stations is sent to the processing base station with data-signal and the channel condition information between this base station and described at least one terminal equipment of at least one received terminal equipment.In step 1005, process the base station and carry out joint detection and decoding according to the data-signal of each at least one terminal equipment that sends from described a plurality of base stations and the channel condition information between this base station that obtains and described at least one terminal equipment, to obtain to come from the media access control MAC layer data of described at least one terminal equipment.
In the situation that the MAC of corresponding terminal equipment layer data is correctly decoded, the serving BS that described processing base station will be sent to described corresponding terminal equipment for MAC layer data and the affirmative acknowledgement ACK of described corresponding terminal equipment, and by this serving BS this affirmative acknowledgement ACK is turned back to described corresponding terminal equipment.This serving BS also carries out upper layer operation to the MAC layer data for described corresponding terminal equipment that receives from the processing base station, thereby transmits upper layer data to gateway.In the situation that the MAC of corresponding terminal equipment layer data is not correctly decoded, described processing base station will be sent to for the negative response NACK of this corresponding terminal equipment the serving BS of described corresponding terminal equipment, and by this serving BS this negative response NACK be turned back to described corresponding terminal equipment.
Figure 11 shows the block diagram according to the processing base station of second embodiment of the invention.
As shown in figure 11, the treatment in accordance with the present invention base station comprises receiving system 1101 and processing unit 1103.Receiving system 1101 can be from a plurality of base stations each receive channel condition information between the data-signal of at least one terminal equipment and each and described at least one terminal equipment in described a plurality of base station.Processing unit 1103 can carry out joint detection and decoding according to the channel condition information between the data-signal of each at least one terminal equipment that receives from a plurality of base stations and each and described at least one terminal equipment in described a plurality of base station, to obtain to come from the media access control MAC layer data of described at least one terminal equipment.
It is pointed out that said structure according to the present invention is suitable for the many antennas scene at terminal equipment and base station place, more than only have an antenna at terminal equipment and place, base station example only be illustrative.
The new centralized network structure that is used for the support uplink network MIMO proposed by the invention is suitable for later mobile communication system.
Mainly considered in the present invention the structure of support uplink network MIMO, owing to need to carry out Combined Treatment to the data that receive from different base stations, the present invention includes and select which base station as the principle of processing the base station and finish correlated process for the combination of up link network MIMO.
Thus, according to the present invention, proposed new concentrating structure, and this structure is the practicable network configuration of network enabled MIMO.In the present invention, definite mechanism of processing the base station is flexibly.Any base station all can be selected as processing the base station, this process base station between can the balance different base station the processing capacity requirement and the base station between the transmission bandwidth utilance.In addition, this structure and the centralized configuration shown in Figure 2 capacity that compares the base station has lower requirement.In addition, this structure is simply and clearly, and all base stations know all which base station is served as and process the base station, and will receive signal accordingly and channel condition information sends them to.Detection and the decoding of these data is responsible in this processing base station, and this structure and current LTE systems compliant.
Although below show the present invention in conjunction with the preferred embodiments of the present invention, one skilled in the art will appreciate that in the situation that does not break away from the spirit and scope of the present invention, can carry out various modifications, replacement and change to the present invention.Therefore, the present invention should not limited by above-described embodiment, and should be limited by claims and equivalent thereof.
Claims (51)
1. one kind is carried out the method that information interaction and data are processed in the communication system of support uplink network multiple-input and multiple-output MIMO, comprising:
In a plurality of base stations each is respectively from least one terminal equipment reception of data signal, and obtain channel condition information between this base station and described at least one terminal equipment, the serving BS as the corresponding terminal equipment at least one terminal equipment of wherein said a plurality of base station, and all the other base stations are as the cooperative base station outside the serving BS of described corresponding terminal equipment;
Select one of described a plurality of base stations as processing the base station; And
Selected processing base station is according to carrying out joint detection and decoding by the channel condition information between the data-signal of each at least one the received terminal equipment in a plurality of base stations and this base station that obtains and described at least one terminal equipment, to obtain to come from the media access control MAC layer data of described at least one terminal equipment.
2. method according to claim 1 is characterized in that this base station and the channel condition information between described at least one terminal equipment that obtain obtain by the pilot tone estimation.
3. method according to claim 1, it is characterized in that in other base stations in a plurality of base stations except selected processing base station each is sent to the channel condition information between the data-signal of at least one received terminal equipment and this base station that obtains and described at least one terminal equipment processes the base station, in order to carry out joint detection and decoding.
4. method according to claim 1 is characterized in that by selection, predefined order or product algorithm carry out processing the selection of base station at random.
5. method according to claim 1, it is characterized in that if selected processing base station is the serving BS of corresponding terminal equipment but not cooperative base station, in the situation that the MAC of corresponding terminal equipment layer data is correctly decoded, then described serving BS will turn back to for the affirmative acknowledgement ACK of described corresponding terminal equipment described corresponding terminal equipment.
6. method according to claim 1, it is characterized in that if selected processing base station is the serving BS of corresponding terminal equipment but not cooperative base station, in the situation that the MCA of corresponding terminal equipment layer data is not correctly decoded, then described serving BS will turn back to for the negative response NACK of described corresponding terminal equipment described corresponding terminal equipment.
7. method according to claim 5 is characterized in that described serving BS carries out upper layer operation to the MAC layer data of described corresponding terminal equipment, thereby transmits upper layer data to gateway.
8. method according to claim 1, it is characterized in that if selected processing base station is not the serving BS of corresponding terminal equipment but cooperative base station, in the situation that the MAC of corresponding terminal equipment layer data is correctly decoded, the serving BS that described processing base station will be sent to described corresponding terminal equipment for MAC layer data and the affirmative acknowledgement ACK of described corresponding terminal equipment.
9. method according to claim 1, it is characterized in that if selected processing base station is not the serving BS of corresponding terminal equipment but cooperative base station, in the situation that the MAC of corresponding terminal equipment layer data is not correctly decoded, described processing base station will be sent to for the negative response NACK of described corresponding terminal equipment the serving BS of described corresponding terminal equipment.
10. method according to claim 8 is characterized in that the affirmative acknowledgement ACK for described corresponding terminal equipment that described serving BS will send from the processing base station turns back to described corresponding terminal equipment.
11. method according to claim 8 is characterized in that described serving BS carries out upper layer operation to the MAC layer data for described corresponding terminal equipment that sends from described processing base station, thereby transmits upper layer data to gateway.
12. method according to claim 9 is characterized in that the negative response NACK that described serving BS will send from the processing base station turns back to described corresponding terminal equipment.
13. according to claim 7 or 11 described methods, it is characterized in that described upper strata is operating as Radio Link control rlc layer operation and packet data convergence protocol PCDP layer operation, and described upper layer data is IP protocol Data Unit PDU.
14. method according to claim 1 is characterized in that described MAC layer data is Medium Access Control (MAC) Protocol Data Unit PDU.
15. method according to claim 1 is characterized in that described communication system is IMT-Advanced IMT system.
16. a system that carries out information interaction and data processing in the communication system of support uplink network multiple-input and multiple-output MIMO comprises:
At least one terminal equipment is used for sending data-signal to a plurality of base stations; And
A plurality of base stations, in described a plurality of base station each is respectively from least one terminal equipment reception of data signal, and obtain channel condition information between this base station and described at least one terminal equipment, one of wherein said a plurality of base stations are as the serving BS of the corresponding terminal equipment at least one terminal equipment, and all the other base stations are as the cooperative base station outside the serving BS of described corresponding terminal equipment;
Wherein, select one of described a plurality of base stations as processing the base station, and selected processing base station is according to carrying out joint detection and decoding by the channel condition information between the data-signal of each at least one the received terminal equipment in a plurality of base stations and this base station that obtains and described at least one terminal equipment, to obtain to come from the media access control MAC layer data of described at least one terminal equipment.
17. the channel condition information between this base station that system according to claim 16, its feature obtain and described at least one terminal equipment is estimated to obtain by pilot tone.
18. system according to claim 16, it is characterized in that in other base stations in a plurality of base stations except selected processing base station each is sent to the channel condition information between the data-signal of at least one received terminal equipment and this base station that obtains and described at least one terminal equipment processes the base station, in order to carry out joint detection and decoding.
19. system according to claim 16 is characterized in that by selection, predefined order or product algorithm carry out processing the selection of base station at random.
20. system according to claim 16, it is characterized in that if selected processing base station is the serving BS of corresponding terminal equipment but not cooperative base station, in the situation that the MAC of corresponding terminal equipment layer data is correctly decoded, then described serving BS will turn back to for the affirmative acknowledgement ACK of described corresponding terminal equipment described corresponding terminal equipment.
21. system according to claim 16, it is characterized in that if selected processing base station is the serving BS of corresponding terminal equipment but not cooperative base station, in the situation that the MAC of corresponding terminal equipment layer data is not correctly decoded, then described serving BS will turn back to for the negative response NACK of described corresponding terminal equipment described corresponding terminal equipment.
22. system according to claim 20 is characterized in that described serving BS carries out upper layer operation to the MAC layer data of described corresponding terminal equipment, thereby transmits upper layer data to gateway.
23. system according to claim 16, it is characterized in that if selected processing base station is not the serving BS of corresponding terminal equipment but cooperative base station, in the situation that the MAC of corresponding terminal equipment layer data is correctly decoded, the serving BS that described processing base station will be sent to described corresponding terminal equipment for MAC layer data and the affirmative acknowledgement ACK of described corresponding terminal equipment.
24. system according to claim 16, it is characterized in that if selected processing base station is not the serving BS of corresponding terminal equipment but cooperative base station, in the situation that the MAC of corresponding terminal equipment layer data is not correctly decoded, described processing base station will be sent to for the negative response NACK of described corresponding terminal equipment the serving BS of described corresponding terminal equipment.
25. system according to claim 23 is characterized in that the affirmative acknowledgement ACK for described corresponding terminal equipment that described serving BS will send from the processing base station turns back to described corresponding terminal equipment.
26. system according to claim 23 is characterized in that described serving BS carries out upper layer operation to the MAC layer data for described corresponding terminal equipment that sends from described processing base station, thereby transmits upper layer data to gateway.
27. system according to claim 24 is characterized in that the negative response NACK that described serving BS will send from the processing base station turns back to described corresponding terminal equipment.
28. according to claim 22 or 26 described systems, it is characterized in that described upper strata is operating as Radio Link control rlc layer operation and packet data convergence protocol PCDP layer operation, and described upper layer data is IP protocol Data Unit PDU.
29. system according to claim 16 is characterized in that described MAC layer data is Medium Access Control (MAC) Protocol Data Unit PDU.
30. system according to claim 16 is characterized in that described communication system is IMT-Advanced IMT system.
31. the processing base station in the communication system of support uplink network multiple-input and multiple-output MIMO comprises:
Receiving system, be used for from least one terminal equipment reception of data signal, and from least one other base station each receives the channel condition information between the data-signal of at least one terminal equipment and each and described at least one terminal equipment in described at least one other base station;
Channel condition information is determined device, is used for obtaining the channel condition information between this base station and described at least one terminal equipment; And
Processing unit, be used for according to utilizing receiving system from the received data-signal of described at least one terminal equipment by this base station, and utilize this base station that channel condition information determines that device obtains and the channel condition information between described at least one terminal equipment, and by the data-signal of receiving system each at least one terminal equipment that receives from least one other base station, and the channel condition information between each and described at least one terminal equipment in described at least one other base station carries out joint detection and decoding, to obtain to come from the media access control MAC layer data of described at least one terminal equipment.
32. base station according to claim 31 is characterized in that this processing base station is as the serving BS of the corresponding terminal equipment in described at least one terminal equipment.
33. base station according to claim 31 is characterized in that this processing base station is not the serving BS of the corresponding terminal equipment in described at least one terminal equipment, but as the cooperative base station of described corresponding terminal equipment.
34. a method of carrying out information interaction and data processing in the communication system of support uplink network multiple-input and multiple-output MIMO comprises:
In a plurality of base stations each is respectively from least one terminal equipment reception of data signal, and obtain channel condition information between this base station and described at least one terminal equipment, one of wherein said a plurality of base stations are as the serving BS of the corresponding terminal equipment at least one terminal equipment, and all the other base stations are as the cooperative base station outside the serving BS of described corresponding terminal equipment;
In described a plurality of base station each is sent to the processing base station with data-signal and the channel condition information between this base station and described at least one terminal equipment of at least one received terminal equipment; And
Process the base station and carry out joint detection and decoding according to the data-signal of each at least one terminal equipment that sends from described a plurality of base stations and the channel condition information between this base station that obtains and described at least one terminal equipment, to obtain to come from the media access control MAC layer data of described at least one terminal equipment.
35. method according to claim 34, the channel condition information of its feature between this base station that obtains and described at least one terminal equipment estimated to obtain by pilot tone.
36. method according to claim 34, it is characterized in that in the situation that the MAC of corresponding terminal equipment layer data is correctly decoded, the serving BS that described processing base station will be sent to described corresponding terminal equipment for MAC layer data and the affirmative acknowledgement ACK of described corresponding terminal equipment, and by this serving BS this affirmative acknowledgement ACK is turned back to described corresponding terminal equipment.
37. method according to claim 34, it is characterized in that in the situation that the MAC of corresponding terminal equipment layer data is not correctly decoded, described processing base station will be sent to for the negative response NACK of this corresponding terminal equipment the serving BS of described corresponding terminal equipment, and by this serving BS this negative response NACK be turned back to described corresponding terminal equipment.
38. method according to claim 36 is characterized in that this serving BS carries out upper layer operation to the MAC layer data for described corresponding terminal equipment that receives from the processing base station, thereby transmits upper layer data to gateway.
39. described method it is characterized in that described upper strata is operating as Radio Link control rlc layer operation and packet data convergence protocol PCDP layer operation, and described upper layer data is IP protocol Data Unit PDU according to claim 38.
40. method according to claim 34 is characterized in that described MAC layer data is Medium Access Control (MAC) Protocol Data Unit PDU.
41. method according to claim 34 is characterized in that described communication system is IMT-Advanced IMT system.
42. a system that carries out information interaction and data processing in the communication system of support uplink network multiple-input and multiple-output MIMO comprises:
At least one terminal equipment is used for sending data-signal to a plurality of base stations;
A plurality of base stations, in a plurality of base stations each is respectively from least one terminal equipment reception of data signal, and obtain channel condition information between this base station and described at least one terminal equipment, one of wherein said a plurality of base stations are as the serving BS of the corresponding terminal equipment at least one terminal equipment, and all the other base stations are as the cooperative base station outside the serving BS of described corresponding terminal equipment, and each data-signal with at least one received terminal equipment in described a plurality of base station, and the channel condition information between this base station and described at least one terminal equipment is sent to the processing base station; And
Process the base station, be used for basis and carry out joint detection and decoding from the data-signal of each at least one terminal equipment that sends of described a plurality of base stations and the channel condition information between this base station that obtains and described at least one terminal equipment, to obtain to come from the media access control MAC layer data of described at least one terminal equipment.
43. described system according to claim 42, the channel condition information of its feature between this base station that obtains and described at least one terminal equipment estimated to obtain by pilot tone.
44. described system according to claim 42, it is characterized in that in the situation that the MAC of corresponding terminal equipment layer data is correctly decoded, the serving BS that described processing base station will be sent to described corresponding terminal equipment for MAC layer data and the affirmative acknowledgement ACK of described corresponding terminal equipment, and by this serving BS this affirmative acknowledgement ACK is turned back to described corresponding terminal equipment.
45. described system according to claim 42, it is characterized in that in the situation that the MAC of corresponding terminal equipment layer data is not correctly decoded, described processing base station will be sent to for the negative response NACK of this corresponding terminal equipment the serving BS of described corresponding terminal equipment, and by this serving BS this negative response NACK be turned back to described corresponding terminal equipment.
46. described system is characterized in that this serving BS carries out upper layer operation to the MAC layer data for described corresponding terminal equipment that receives from the processing base station, thereby transmits upper layer data to gateway according to claim 44.
47. described system it is characterized in that described upper strata is operating as Radio Link control rlc layer operation and packet data convergence protocol PCDP layer operation, and described upper layer data is IP protocol Data Unit PDU according to claim 46.
48. described system is characterized in that described MAC layer data is Medium Access Control (MAC) Protocol Data Unit PDU according to claim 47.
49. described system is characterized in that described communication system is IMT-Advanced IMT system according to claim 42.
50. the processing base station in the communication system of support uplink network multiple-input and multiple-output MIMO comprises:
Receiving system is used for receiving channel condition information between the data-signal of at least one terminal equipment and each and described at least one terminal equipment described a plurality of base station from each of a plurality of base stations; And
Processing unit, carry out joint detection and decoding according to the channel condition information between the data-signal of each at least one terminal equipment that receives from a plurality of base stations and each and described at least one terminal equipment in described a plurality of base station, to obtain to come from the media access control MAC layer data of described at least one terminal equipment.
51. described base station is characterized in that described processing base station is another base station except a plurality of base stations according to claim 50.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910045887 CN101789811B (en) | 2009-01-22 | 2009-01-22 | Method for information interaction and data processing in communication system, system and base station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910045887 CN101789811B (en) | 2009-01-22 | 2009-01-22 | Method for information interaction and data processing in communication system, system and base station |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101789811A CN101789811A (en) | 2010-07-28 |
| CN101789811B true CN101789811B (en) | 2013-03-27 |
Family
ID=42532888
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200910045887 Active CN101789811B (en) | 2009-01-22 | 2009-01-22 | Method for information interaction and data processing in communication system, system and base station |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101789811B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102404787B (en) * | 2010-09-15 | 2014-07-09 | 华为技术有限公司 | Signal transmission method, base stations and system |
| WO2014100947A1 (en) * | 2012-12-24 | 2014-07-03 | 华为技术有限公司 | Communication processing method, device and system for uplink and downlink separation |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101047486A (en) * | 2006-06-23 | 2007-10-03 | 华为技术有限公司 | Interference detection method |
-
2009
- 2009-01-22 CN CN 200910045887 patent/CN101789811B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101047486A (en) * | 2006-06-23 | 2007-10-03 | 华为技术有限公司 | Interference detection method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101789811A (en) | 2010-07-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| AU2018215660A1 (en) | Multi-site mimo communications system with hybrid beamforming in L1-split architecture | |
| CN110268778A (en) | Downlink data transmission method, device and storage medium | |
| US11626904B2 (en) | Method and device for multi-antenna transmission in user equipment (UE) and base station | |
| KR20140009552A (en) | Method for receiving uplink radio frequency signals in a radio communication system, master unit and slave unit thereof | |
| US11895050B2 (en) | Method and device in nodes used for wireless communication | |
| CN114731605A (en) | Apparatus and method for relaying a service registration event via an E2 interface in a wireless access network communication system | |
| US11418242B2 (en) | Method and device for multi-antenna transmission in UE and base station | |
| WO2019154259A1 (en) | Wireless communication method and device in base station and user equipment | |
| CN110401516B (en) | Method and device used in first node and base station for wireless communication | |
| CN101594174B (en) | Method and base station for supporting uplink network multiple input multiple output (MIMO) | |
| US20140213275A1 (en) | Methods of Performing Radio Resource Management, Network Node, Mobile Device, Base Station, and Wireless Communication System Using the Same Methods | |
| CN115190579A (en) | Method and device used for wireless communication | |
| CN110049558B (en) | Method and device in communication node for wireless communication | |
| CN112423318B (en) | Method and apparatus in a node used for wireless communication | |
| CN101789811B (en) | Method for information interaction and data processing in communication system, system and base station | |
| CN110167166B (en) | Method and device for wireless communication in base station and user equipment | |
| US11304198B2 (en) | Packet data convergence protocol traffic monitoring | |
| CN113395764B (en) | Method and apparatus in a node used for wireless communication | |
| CN112399581B (en) | Method and apparatus in a node used for wireless communication | |
| CN117395629A (en) | Method and device for relay transmission | |
| CN115088225B (en) | Beam indication method and device | |
| CN113573274B (en) | Method and apparatus in a node for wireless communication | |
| CN113965960B (en) | Method and device for relaying wireless communication through sidelink | |
| WO2024099240A1 (en) | Method and device for node used for wireless communication | |
| US20240147507A1 (en) | Interference cancellation capability awareness for sidelink communications |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 201206 Pudong New Area, Nanjing Road, No. 388, Shanghai Patentee after: Shanghai NOKIA Baer Limited by Share Ltd Address before: 201206 Pudong New Area, Nanjing Road, No. 388, Shanghai Patentee before: Shanghai Alcatel-Lucent Co., Ltd. |
|
| CP01 | Change in the name or title of a patent holder |