CN102111212B - Method and system for notifying MU-MIMO capacity of terminal - Google Patents

Method and system for notifying MU-MIMO capacity of terminal Download PDF

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Publication number
CN102111212B
CN102111212B CN200910215549.1A CN200910215549A CN102111212B CN 102111212 B CN102111212 B CN 102111212B CN 200910215549 A CN200910215549 A CN 200910215549A CN 102111212 B CN102111212 B CN 102111212B
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terminal
mimo
message
rrc
network controller
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CN102111212A (en
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黄春
黄河
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ZTE Corp
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ZTE Corp
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Priority to PCT/CN2010/073973 priority patent/WO2010148979A1/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • H04W8/22—Processing or transfer of terminal data, e.g. status or physical capabilities
    • H04W8/24—Transfer of terminal data

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  • Databases & Information Systems (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

The invention discloses a method and a system for notifying the multiple users-multiple input and multiple output (MU-MIMO) capacity of a terminal. The method comprises the following steps that: the terminal sends a radio resource control (RRC) message to a radio network controller (RNC), wherein the RRC message carries the MU-MIMO capacity information of the terminal; the RNC analyzes the RRC message and acquires the MU-MIMO capacity of the terminal; and the RNC notifies the MU-MIMO capacity, obtained by analyzing, of the terminal to a Node B through a user interface. By using the method and the system, the MU-MIMO capacity of the terminal can be carried to the Node B by the RNC, so that the Node B can acquire the MU-MIMO capacity of the terminal for matching a plurality of users supporting the MU-MIMO capacity; therefore, a function of transmitting a plurality of data streams to the plurality of the users at the same time is realized.

Description

The Notification Method of MU-MIMO capacity of terminal and system
Technical field
The present invention relates to the communications field, in particular to a kind of Notification Method and system of MU-MIMO capacity of terminal.
Background technology
SU-MIMO (Single User MIMO (Multiple Input and Multiple Output, multiple-input and multiple-output)) technology is that a user sends two data flow simultaneously, can improve the peak throughput at alone family, in order to support SU-MIMO technology, the realization of terminal has been proposed to higher requirement, comprised and need to support the new special default midamble method of salary distribution, increase buffer memory to support more process and to support stronger joint detection algorithm etc.
Compare with SU-MIMO technology, MU-MIMO (multiuser MIMO) sends a plurality of data flow for a plurality of users simultaneously, utilize MU-MIMO technology to realize SDMA (Space Division Multiple Access, space division multiple access), can improve community average user throughput.From terminal angle, UE only needs single antenna to receive a data flow.MU-MIMO technology not only can be applied in descending, can also be applied in up direction equally.Terminal only need to be supported the new special default midamble method of salary distribution.Compare the requirement of SU-MIMO technology to terminal, MU-MIMO more simply, easily realizes.
But still do not have at present method by the MU-MIMO informing capability of terminal to network side, thereby network side just cannot know whether terminal supports MU-MIMO finally cannot realize MU-MIMO function like this.
Summary of the invention
Main purpose of the present invention is to provide a kind of Notification Method and system of MU-MIMO capacity of terminal, at least to address the above problem.
According to an aspect of the present invention, provide a kind of Notification Method of MU-MIMO capacity of terminal, having comprised: terminal has sent radio resource control RRC message to radio network controller, and wherein, RRC message carries the MU-MIMO ability information of terminal; Radio network controller is resolved RRC message and is got the MU-MIMO ability of terminal; The MU-MIMO informing capability of the terminal that radio network controller obtains parsing by user's face is to base station.
Preferably, RRC message is that request message is set up in RRC connection, terminal sends radio resource control RRC message and comprises to radio network controller: terminal sends RRC connection and sets up request message to base station, and wherein, the MU-MIMO ability information that carries terminal in request message is set up in RRC connection; Base station connects and sets up request message packing and send to radio network controller by user's face the RRC receiving.
Preferably, RRC message is RRC connection setup complete message, terminal sends radio resource control RRC message and comprises to radio network controller: terminal sends RRC connection setup complete message to base station, wherein, carries the MU-MIMO ability information of terminal in RRC connection setup complete message; Base station is to the RRC connection setup complete message packing receiving and send to radio network controller by user's face.
Preferably, base station sends to radio network controller by the RRC message receiving by enhancement type special channel Frame Protocol E-DCH FP frame.
Preferably, MU-MIMO ability information is for representing whether terminal supports MU-MIMO or for representing whether terminal supports special midamble code allocation model.
The MU-MIMO informing capability of the terminal that preferably, radio network controller obtains parsing by user's face comprises to base station: the MU-MIMO informing capability of the terminal that radio network controller obtains parsing by high-speed downlink shared channel Frame Protocol HS-DSCH FP type2 frame is to base station.
According to a further aspect in the invention, provide a kind of reporting system of MU-MIMO capacity of terminal, having comprised:
Terminal, for sending radio resource control RRC message to radio network controller, wherein, RRC message carries the MU-MIMO ability information of terminal;
Radio network controller, for resolving RRC message and getting the MU-MIMO ability of terminal; Also for the MU-MIMO informing capability of the terminal that parsing obtained by user's face to base station.
Preferably, RRC message is that request message is set up in RRC connection,
Terminal comprises: the first sending module, for sending RRC connection, set up request message to base station, and wherein, the MU-MIMO ability information that carries terminal in request message is set up in RRC connection;
Base station comprises:
The second receiver module, request message is set up in the RRC sending for receiving terminal connection; Also, for receiving the HS-DSCH FP type2 frame from radio network controller, in HS-DSCH FP type2 frame, carry the MU-MIMO ability information of terminal;
The second sending module, connects and sets up request message packing and the E-DCH FP frame by user's face sends to radio network controller for RRC that the second receiver module is received.
Preferably, RRC message is RRC connection setup complete message,
Terminal comprises: the first sending module, for sending RRC connection setup complete message to base station, wherein, carries the MU-MIMO ability information of terminal in RRC connection setup complete message;
Base station comprises:
The second receiver module, the RRC connection setup complete message sending for receiving terminal; Also, for receiving the HS-DSCH FP type2 frame from radio network controller, in HS-DSCH FP type2 frame, carry the MU-MIMO ability information of terminal;
The second sending module, sends to radio network controller for RRC connection setup complete message packing that the second receiver module is received the E-DCH FP frame by user's face.
Preferably, radio network controller comprises:
Parsing module, for resolving RRC message and getting the MU-MIMO ability of terminal;
The 3rd sending module, for the MU-MIMO informing capability of parsing module being resolved to the terminal obtain by HS-DSCH FP type2 frame to base station;
The 3rd receiver module, for receiving the E-DCH FP frame from base station, includes RRC message in E-DCH FP frame.
By the present invention, in the RRC message at terminal and RNC, special this RRC message can be that request message or RRC connection setup complete message are set up in the RRC connection that terminal is initiated to RNC, terminal carries MU-MIMO ability to RNC, RNC resolves after RRC message is obtained MU-MIMO capacity of terminal and by user's face, the MU-MIMO ability of terminal is carried to NodeB, at user's face RNC, by HS-DSCH FP TYPE2, MU-MIMO ability is carried to NodeB especially, having solved terminal in correlation technique cannot carry MU-MIMO ability to network side, thereby cannot realize the problem of MU-MIMO function, and then can make RNC that MU-MIMO capacity of terminal is carried to NodeB by user's face, make NodeB can know the MU-MIMO ability of terminal and then be user's pairing of a plurality of support MU-MIMO abilities, be embodied as the function that a plurality of users send a plurality of data flow (being MU-MIMO) simultaneously.
Accompanying drawing explanation
Accompanying drawing described herein is used to provide a further understanding of the present invention, forms the application's a part, and schematic description and description of the present invention is used for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is according to the flow chart of the Notification Method of the MU-MIMO capacity of terminal of the embodiment of the present invention;
Fig. 2 is according to the schematic diagram of the reporting system of the MU-MIMO capacity of terminal of the embodiment of the present invention;
Fig. 3 is the frame structure schematic diagram of the HS-DSCH FP TPYE2 frame that carried terminal MU-MIMO ability is indicated according to the preferred embodiment of the invention;
Fig. 4 is according to the flow chart of the Notification Method of the MU-MIMO capacity of terminal of the preferred embodiment of the present invention one;
Fig. 5 is according to the flow chart of the Notification Method of the MU-MIMO capacity of terminal of the preferred embodiment of the present invention two.
Embodiment
Hereinafter with reference to accompanying drawing, also describe the present invention in detail in conjunction with the embodiments.It should be noted that, in the situation that not conflicting, embodiment and the feature in embodiment in the application can combine mutually.
Fig. 1 is according to the flow chart of the Notification Method of the MU-MIMO capacity of terminal of the embodiment of the present invention, comprises the following steps:
Step S102, terminal sends RRC message to radio network controller, and wherein, RRC message carries the MU-MIMO ability information of terminal;
Step S104, radio network controller is resolved RRC message and is got the MU-MIMO ability of terminal;
Step S106, the MU-MIMO informing capability of the terminal that radio network controller obtains parsing by user's face is to base station.
This embodiment is due to (the Radio Resource Control of the RRC at terminal and RNC, Radio Resource control) in message, terminal carries MU-MIMO ability to RNC, RNC resolves after RRC message is obtained MU-MIMO capacity of terminal and by user's face, the MU-MIMO ability of terminal is carried to NodeB, having solved terminal in correlation technique cannot carry MU-MIMO ability to NodeB, thereby cannot realize the problem of MU-MIMO function.Use this embodiment can make RNC that MU-MIMO capacity of terminal is carried to NodeB by user's face, thereby make NodeB can know the MU-MIMO ability of terminal and then be a plurality of users pairing, the user who is embodied as a plurality of support MU-MIMO abilities sends the function of a plurality of data flow (being MU-MIMO) simultaneously.
The method is also applicable to support the special midamble code method of salary distribution simultaneously.
Preferably, as shown in Figure 4, RRC message is that request message is set up in RRC connection, and step S102 comprises: terminal sends RRC connection and sets up request message to base station, and wherein, the MU-MIMO ability information that carries terminal in request message is set up in RRC connection; Base station connects and sets up request message packing and send to radio network controller by user's face the RRC receiving.
Preferably, as shown in Figure 5, RRC message is RRC connection setup complete message, and step S102 comprises: terminal sends RRC connection setup complete message to base station, wherein, carries the MU-MIMO ability information of terminal in RRC connection setup complete message; Base station is to the RRC connection setup complete message packing receiving and send to radio network controller by user's face.
Wherein, as shown in Figure 4 and Figure 5, base station by the RRC message receiving (RRC connect set up request message or RRC connection setup complete message) by user's face for example E-DCH FP frame send to radio network controller.
Preferably, MU-MIMO ability information is used for representing whether terminal supports MU-MIMO, and this MU-MIMO ability information can be MU-MIMO ability indication information element as shown in table 1:
Table 1:MU-MIMO ability indication information element
information Element/Group name (information unit/group name) need (whether needing) type and reference (type and reference value) semantics description (semantic description) version (version)
mU-MIMO Indicator (indication of MU-MIMO ability) oP (optional) enumeration type or 1bit integer type, when default, reference value can be got TRUE or 1 this cell is for 1.28 Mcps TDD.For example: TRUE (or 1) represents that UE supports MU-MIMO; FALSE (or 0) represents that UE does not support MU-MIMO rEL-9
Preferably, as shown in Figure 4 and Figure 5, step S 106 comprises: the MU-MIMO informing capability of radio network controller by user's face terminal that for example HS-DSCH FP type2 frame obtains parsing is to base station.
Above preferred embodiment provides two specific embodiments of the Notification Method of MU-MIMO capacity of terminal.At the RRC of terminal and RNC, be connected in the request of foundation or RRC connection setup complete message, terminal carries MU-MIMO ability to RNC, and RNC resolves after RRC message is obtained MU-MIMO capacity of terminal and by user's face, for example adopts HS-DSCH FP type2 frame that the MU-MIMO ability of terminal is carried to NodeB again.
Fig. 2 is according to the schematic diagram of the reporting system of the MU-MIMO capacity of terminal of the embodiment of the present invention, and this reporting system comprises:
Terminal 10, for sending radio resource control RRC message to radio network controller 20, wherein, RRC message carries the MU-MIMO ability information of terminal;
Radio network controller 20, for resolving RRC message and getting the MU-MIMO ability of terminal 10; Also for the MU-MIMO informing capability of the terminal that parsing obtained by user's face to base station 30.
This embodiment is due to (the Radio Resource Control of the RRC at terminal and RNC, Radio Resource control) in message, terminal carries MU-MIMO ability to RNC, RNC resolves after RRC message is obtained MU-MIMO capacity of terminal and by user's face, the MU-MIMO ability of terminal is carried to NodeB, having solved terminal in correlation technique cannot carry MU-MIMO ability to NodeB, thereby cannot realize the problem of MU-MIMO function.Use this embodiment can make MU-MIMO capacity of terminal carry to NodeB by user's face, thereby make NodeB can know the MU-MIMO ability of terminal and then be user's pairing of a plurality of support MU-MIMO abilities, be embodied as the function that a plurality of users send a plurality of data flow (being MU-MIMO) simultaneously.
Preferably, when RRC message is that RRC connects while setting up request message,
Terminal 10 comprises: the first sending module 101, for sending RRC connection, set up request message to base station 30, and wherein, the MU-MIMO ability information that carries terminal in request message is set up in RRC connection;
Base station 30 comprises:
The second receiver module 301, request message is set up in the RRC connection sending for receiving terminal 10; Also, for receiving the HS-DSCH FP type2 frame from radio network controller 20, in this HS-DSCH FP type2 frame, carry the MU-MIMO ability information of terminal; The frame structure of HS-DSCH FP type2 frame as shown in Figure 3.
The second sending module 302, connects and sets up request message packing and the E-DCH FP frame by user's face sends to radio network controller 20 for RRC that the second receiver module 301 is received.
Radio network controller 20 comprises:
Parsing module 201, for resolving RRC message and getting the MU-MIMO ability of terminal;
The 3rd sending module 202, for the MU-MIMO informing capability of parsing module 201 being resolved to the terminal obtaining by HS-DSCH FP type2 frame to base station 30;
The 3rd receiver module 203, for receiving the E-DCH FP frame from base station 30, includes RRC message in this E-DCH FP frame.
Preferably, when RRC message is RRC connection setup complete message,
Terminal 10 comprises: the first sending module 101, and for sending RRC connection setup complete message to base station 30, wherein, the MU-MIMO ability information that carries terminal in request message is set up in RRC connection;
Base station 30 comprises:
The second receiver module 301, request message is set up in the RRC connection sending for receiving terminal 10; Also, for receiving the HS-DSCH FP type2 frame from radio network controller 20, in this HS-DSCH FP type2 frame, carry the MU-MIMO ability information of terminal; The frame structure of HS-DSCH FP type2 frame as shown in Figure 3;
The second sending module 302, connects and sets up request message packing and the E-DCH FP frame by user's face sends to radio network controller 20 for RRC that the second receiver module 301 is received.
Radio network controller 20 comprises:
Parsing module 201, for resolving RRC message and getting the MU-MIMO ability of terminal;
The 3rd sending module 202, for the MU-MIMO informing capability of parsing module 201 being resolved to the terminal obtaining by HS-DSCH FP type2 frame to base station 30;
The 3rd receiver module 203, for receiving the E-DCH FP frame from base station 30, includes RRC message in this E-DCH FP frame.
Above preferred embodiment provides two specific embodiments of the reporting system of MU-MIMO capacity of terminal.At the RRC of terminal and RNC, be connected in the request of foundation or RRC connection setup complete message, terminal carries MU-MIMO ability to RNC, and RNC resolves after RRC message is obtained MU-MIMO capacity of terminal and by user's face, for example adopts HS-SCCH FP type2 frame that the MU-MIMO ability of terminal is carried to NodeB again.
Preferred embodiment one:
Fig. 4 is the flow chart to the Notification Method of MU-MIMO ability in CELL_FACH state transition process according to the terminal of the preferred embodiment of the present invention one, comprises the following steps:
Step 402, terminal (UE) is initiated RRC to network side and is connected and set up request message, RRC connect set up request message in by the MU-MIMO capability reporting of terminal to network side, MU-MIMO ability indication information element is in Table 1;
Step 404, NodeB receives after request message is set up in RRC connection and packs and pass through user's face for example by E-DCH FP (Enhanced-Dedicated Channel FrameProtocol, enhancement type special channel Frame Protocol) frame is set up request message by the RRC connection that carries MU-MIMO capacity of terminal and is sent to RNC, now packs and carries out according to E-DCH FP frame structure;
Step 406, RNC receives E-DCH FP frame data and parsing RRC wherein connects the MU-MIMO ability that request message obtains terminal of setting up, and by user's face for example HS-DSCH FP type2 (High-Speed Downlink Shared Channel FrameProtocol, high-speed downlink shared channel Frame Protocol) frame MU-MIMO capacity of terminal is notified to NodeB.Wherein, the frame structure of HS-DSCH FP type2 frame as shown in Figure 3, the frame structure of this HS-DSCH FP type2 frame comprises frame head (Header), information carrying (Payload), in information carrying, comprise again n onesize PDU ((Protocol DataUnit, protocol Data Unit)) piece: first piece in onesize PDU piece (Firstblock of PDUs with the same size) is to n the piece (nth block of PDUs with the same size) in onesize PDU piece.Carry the idle bit position that takies frame head for the MU-MIMO Indicator that represents MU-MIMO capacity of terminal.
Preferred implementation two:
Fig. 5 is the flow chart to the Notification Method of MU-MIMO ability in CELL FACH state transition process according to the terminal of the preferred embodiment of the present invention two, comprises the following steps:
Step 502, terminal is initiated RRC connection setup complete message to network side, in RRC connection setup complete message by the MU-MIMO capability reporting of terminal to network side, MU-MIMO ability indication information element is in Table 1;
Step 504, NodeB packs and for example by E-DCH FP frame, the RRC connection setup complete message that carries MU-MIMO capacity of terminal is sent to RNC by user's face after receiving RRC connection setup complete message, now packs and carries out according to E-DCH FP frame structure;
Step 506, RNC receives E-DCH FP frame data and resolves the MU-MIMO ability that RRC connection setup complete message wherein obtains terminal, and by user's face for example HS-DSCH FP type2 frame MU-MIMO capacity of terminal is notified to NodeB.The frame structure of HS-DSCH FP type2 frame as shown in Figure 3.
As can be seen from the above description, the present invention has realized following technique effect:
In the RRC message at terminal and RNC, terminal carries MU-MIMO ability to RNC, RNC resolves after RRC message is obtained MU-MIMO capacity of terminal and by user's face, the MU-MIMO ability of terminal is carried to NodeB, having solved terminal in correlation technique cannot carry MU-MIMO ability to NodeB, thereby cannot realize the problem of MU-MIMO function, and then can make RNC that MU-MIMO capacity of terminal is carried to NodeB by user's face, make NodeB can know the MU-MIMO ability of terminal and then be user's pairing of a plurality of support MU-MIMO abilities, be embodied as the function that a plurality of users send a plurality of data flow (being MU-MIMO) simultaneously.
Obviously, those skilled in the art should be understood that, above-mentioned each module of the present invention or each step can realize with general calculation element, they can concentrate on single calculation element, or be distributed on the network that a plurality of calculation elements form, alternatively, they can be realized with the executable program code of calculation element, thereby, they can be stored in storage device and be carried out by calculation element, and in some cases, can carry out shown or described step with the order being different from herein, or they are made into respectively to each integrated circuit modules, or a plurality of modules in them or step are made into single integrated circuit module to be realized.Like this, the present invention is not restricted to any specific hardware and software combination.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.

Claims (8)

1. a Notification Method for terminal multi-user multiple-input and multiple-output MU-MIMO ability, is characterized in that, comprising:
Terminal sends radio resource control RRC message to radio network controller, and wherein, described RRC message carries the MU-MIMO ability information of described terminal;
Described radio network controller is resolved described RRC message and is got the MU-MIMO ability of described terminal;
The MU-MIMO informing capability of the described terminal that described radio network controller obtains parsing by user's face is to base station;
The MU-MIMO informing capability of the described terminal that wherein, described radio network controller obtains parsing by user's face comprises to base station: the MU-MIMO informing capability of the described terminal that described radio network controller obtains parsing by high-speed downlink shared channel Frame Protocol HS-DSCH FP type2 frame is given described base station.
2. method according to claim 1, is characterized in that, described RRC message is that request message is set up in RRC connection, and terminal sends radio resource control RRC message and comprises to radio network controller:
Described terminal sends RRC connection and sets up request message to base station, and wherein, the MU-MIMO ability information that carries described terminal in request message is set up in described RRC connection;
Described base station connects and sets up request message packing and send to described radio network controller by user's face the described RRC receiving.
3. method according to claim 1, is characterized in that, described RRC message is RRC connection setup complete message, and terminal sends radio resource control RRC message and comprises to radio network controller:
Described terminal sends RRC connection setup complete message to base station, wherein, carries the MU-MIMO ability information of described terminal in described RRC connection setup complete message;
Described base station is to the described RRC connection setup complete message packing receiving and send to described radio network controller by user's face.
4. according to the method in claim 2 or 3, it is characterized in that, described base station sends to described radio network controller by the RRC message receiving by enhancement type special channel Frame Protocol E-DCH FP frame.
5. method according to claim 1, is characterized in that, described MU-MIMO ability information is for representing whether terminal supports MU-MIMO or for representing whether terminal supports special midamble code allocation model.
6. a reporting system for MU-MIMO capacity of terminal, is characterized in that, comprising:
Terminal, for sending radio resource control RRC message to radio network controller, wherein, described RRC message carries the MU-MIMO ability information of described terminal;
Described radio network controller, for resolving described RRC message and getting the MU-MIMO ability of described terminal; Also for the MU-MIMO informing capability of the described terminal that parsing obtained by user's face to base station;
Wherein, described radio network controller comprises: parsing module, for resolving described RRC message and getting the MU-MIMO ability of described terminal; The 3rd sending module, for the MU-MIMO informing capability of described parsing module being resolved to the described terminal obtaining by HS-DSCH FP type2 frame to described base station; The 3rd receiver module, for receiving the E-DCH FP frame from described base station, includes RRC message in described E-DCH FP frame.
7. system according to claim 6, is characterized in that, described RRC message is that request message is set up in RRC connection,
Described terminal comprises: the first sending module, for sending RRC connection, set up request message to base station, and wherein, the MU-MIMO ability information that carries described terminal in request message is set up in described RRC connection;
Described base station comprises:
The second receiver module, sets up request message for receiving the described RRC connection of described terminal transmission; Also, for receiving the HS-DSCH FP type2 frame from described radio network controller, in described HS-DSCH FP type2 frame, carry the MU-MIMO ability information of described terminal;
The second sending module, connects and sets up request message packing and the E-DCH FP frame by user's face sends to described radio network controller for the described RRC that described the second receiver module is received.
8. system according to claim 6, is characterized in that, described RRC message is RRC connection setup complete message,
Described terminal comprises: the first sending module, for sending RRC connection setup complete message to base station, wherein, carries the MU-MIMO ability information of described terminal in described RRC connection setup complete message;
Described base station comprises:
The second receiver module, the described RRC connection setup complete message sending for receiving described terminal; Also, for receiving the HS-DSCH FP type2 frame from described radio network controller, in described HS-DSCH FP type2 frame, carry the MU-MIMO ability information of described terminal;
The second sending module, sends to described radio network controller for described RRC connection setup complete message packing that described the second receiver module is received the E-DCH FP frame by user's face.
CN200910215549.1A 2009-12-24 2009-12-24 Method and system for notifying MU-MIMO capacity of terminal Expired - Fee Related CN102111212B (en)

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