CN106571859A

CN106571859A - MIMO transmission method and apparatus

Info

Publication number: CN106571859A
Application number: CN201510650192.5A
Authority: CN
Inventors: 易雄书
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2015-10-09
Filing date: 2015-10-09
Publication date: 2017-04-19
Anticipated expiration: 2035-10-09
Also published as: CN106571859B

Abstract

The invention relates to the technical field of wireless communication, especially to a multiple-input-multiple-output (MIMO) transmission method and apparatus, so that problems that many interference parts exist in MIMO signals sent to UE and the number of UE connectable to the system is limited because MIMO transmission is carried out through all receiving channels supported by the UE can be solved. The method comprises: a network side device determines receiving channel configuration information for UE, wherein the receiving channel configuration information is used for indicating receiving channels for selective receiving of an MIMO signal by UE and the number of the receiving channel is smaller than the number of receiving channels supported by the UE; and the receiving channel configuration information is sent to the UE and an MIMO signal is sent to the UE based on the receiving channel configuration information.

Description

A kind of multiple-input and multiple-output MIMO transmission method and device

Technical field

The present invention relates to wireless communication technology field, more particularly to a kind of MIMO transmission method and device.

Background technology

Extensive MIMO technique (Massive Multiple-Input Multiple-Output, Massive MIMO) be apply Long Term Evolution (Long Term Evolution, LTE) and the 5th generation without One of key technology of line communication system (5th Generation Wireless Systems, 5G).The technology Spectrum efficiency can be substantially improved, helps operator to greatest extent using site and frequency spectrum resource is had, significantly Improve covering and the capacity of wireless network.Massive MIMO coordinate by using large-scale antenna array Advanced Digital Signal Processing, can form narrow beam, so as to reduce multiple users on identical running time-frequency resource Interference between equipment (User Equipment, UE), improves power system capacity and attachable UE numbers.

UE is commonly equipped with 1 transmission channel and 2 receiving channels, with the raising of UE tenabilities, Also begin to emerge in multitude equipped with the UE of 4 receiving channels, such as high-end customer terminal unit (Customer Premise Equipment, CPE).UE can be supported using itself when the reception of MIMO signal is carried out All receiving channels received, correspondingly, network equipment can based on UE support all receptions lead to Road, determines the MIMO signal for being sent to UE.UE utilizes multiple receiving channels, it is possible to obtain larger Performance gain, so as to lift Consumer's Experience.

Under Massive mimo systems, multi-user's MIMO technique is depended on (Multi-User Multiple-Input Multiple-Output, MU-MIMO) brings user's spatial multiplexing gain, So as to improve power system capacity and attachable UE numbers.In this case, if each UE is using more Receiving channel, the interference component in the MIMO signal that each UE is received can also be greatly increased；In addition, As the transmission resource that UE sends detection reference signal (Sounding Reference Signal, SRS) is Limited, the increase of UE receiving channel numbers, it will limit the attachable UE numbers of system.

The content of the invention

The embodiment of the present invention provides a kind of MIMO transmission method and device, to solve to prop up according to UE The all receiving channels held are deposited in causing the MIMO signal for be sent to UE carrying out MIMO transmission In more interference component, and the problem of the attachable UE numbers of system will be limited.

A kind of first aspect, there is provided multiple-input and multiple-output MIMO transmission method, including：

Network equipment determines receiving channel configuration information for user equipment (UE)；The receiving channel matches somebody with somebody confidence Cease for indicating that the UE selects to receive the receiving channel of the sent MIMO signal of the network equipment, The receiving channel number that the number of the receiving channel is supported less than the UE；

The receiving channel configuration information is sent to the UE by the network equipment；

The network equipment is based on the receiving channel configuration information, sends MIMO signal to the UE.

With reference in a first aspect, in the first possible implementation, the receiving channel configuration information includes At least one in following information：

The network equipment is the information of the receiving channel that the UE is selected；

The receiving channel number that the UE can be selected.

With reference to the first possible implementation of first aspect, in second possible implementation, institute The information for stating receiving channel includes：The pilot frequency port number of the UE corresponding with the receiving channel.

With reference in a first aspect, or first aspect the first or second possible implementation, at the third In possible implementation, before the network equipment determines receiving channel configuration information for UE, also wrap Include：

The network equipment receives the UE and distinguishes corresponding transmission channel in the multiple receiving channels supported The uplink reference signals of upper transmission；

The network equipment determines receiving channel configuration information for user equipment (UE), including：

Received signal strength of the network equipment based on the uplink reference signals for receiving, it is determined that described Receiving channel configuration information.

With reference in a first aspect, or any one in the first～tri- kind of possible implementation of first aspect can Can implementation, in the 4th kind of possible implementation, the network equipment is by the receiving channel Configuration information is sent to the UE, including：

The network equipment is matched for the UE；

After the successful matching, the receiving channel configuration information is sent to described by the network equipment UE；Wherein, the UE of successful matching can support forming multiuser wave beam MUBF transmission modes；

The network equipment is based on the receiving channel configuration information, sends MIMO signal to the UE, Including：

The network equipment is based on the receiving channel configuration information, under MUBF transmission modes, to The UE sends the MIMO signal.

With reference to the 4th kind of possible implementation of first aspect, in the 5th kind of possible implementation, institute State network equipment and match for the UE, including：

The network equipment distinguishes corresponding transmission channel in the receiving channel for selecting based on the UE The uplink reference signals of upper transmission, determine the single user wave beam forming SUBF weights of the UE；

The descending measurement that SUBF weights and the UE of the network equipment based on the UE are reported Information, is that the UE is matched；

The network equipment is based on the receiving channel configuration information, under MUBF transmission modes, to The UE sends the MIMO signal, including：

The UE's that the network equipment is determined according to the receiving channel configuration information based on the UE SUBF weights and the SUBF weights with other UE of UE pairings, determine the MUBF of the UE Weights；

The network equipment based on a determination that the UE MUBF weights, to sent MIMO Signal is sent to the UE after being weighted.

A kind of second aspect, there is provided multiple-input and multiple-output MIMO transmission method, including：

User equipment (UE) receives the receiving channel configuration information that network equipment sends；The receiving channel is matched somebody with somebody Confidence is ceased for indicating that the UE selects the reception for receiving the sent MIMO signal of the network equipment to lead to Road, the number of the receiving channel is less than the receiving channel number that the UE is supported；

The UE is based on the receiving channel configuration information, in the multiple receiving channels supported from the UE Select for receiving the receiving channel of the sent MIMO signal of the network equipment；

The UE receives the MIMO letters that the network equipment sends based on the receiving channel for selecting Number.

With reference to second aspect, in the first possible implementation, the receiving channel configuration information includes At least one in following information：

Receiving channel number N that the UE can be selected, N are the positive integer more than or equal to 1.

With reference to the first possible implementation of second aspect, in second possible implementation, institute The information for stating receiving channel includes：The pilot frequency port number of the UE corresponding with the receiving channel.

With reference to the first possible implementation of second aspect, in the third possible implementation, if The receiving channel configuration information includes receiving channel number N that the UE can be selected, then the UE Based on the receiving channel configuration information, select for receiving in the multiple receiving channels supported from the UE The receiving channel of the sent MIMO signal of the network equipment, including：

Received signal strengths of the UE based on the reception downlink reference signal in the plurality of receiving channel, N number of receiving channel is selected in the multiple receiving channels supported from the UE.

With reference to second aspect, or any one in the first～tri- kind of possible implementation of second aspect can The implementation of energy, in the 4th kind of possible implementation, the UE is configured based on the receiving channel Information, selects to be sent for receiving the network equipment in the multiple receiving channels supported from the UE After the receiving channel of MIMO signal, also include：

The UE is in the receiving channel for receiving the sent MIMO signal of the network equipment point On not corresponding transmission channel, uplink reference signals are sent.

With reference to the 4th kind of possible implementation of second aspect, in the 5th kind of possible implementation,

If the UE can support for and meanwhile send upward signal transmission channel number be less than the use In the number of the receiving channel for receiving the sent MIMO signal of the network equipment,

Then the UE is in the receiving channel for receiving the sent MIMO signal of the network equipment On the corresponding transmission channel of difference, uplink reference signals are sent, including：

The UE is sent for receiving the network equipment described by carrying out antenna switching The receiving channel of MIMO signal is distinguished on corresponding transmission channel, sends uplink reference signals.

A kind of third aspect, there is provided multiple-input and multiple-output MIMO transmission device, including：

Processing unit, for determining receiving channel configuration information for user equipment (UE)；The receiving channel is matched somebody with somebody Confidence is ceased for indicating that the UE selects to receive the receiving channel of the sent MIMO signal of described device, institute The number of receiving channel is stated less than the receiving channel number that the UE is supported；

Transmit-Receive Unit, for the receiving channel configuration information that the processing unit determines is sent to the UE, And the receiving channel configuration information is based on, MIMO signal is sent to the UE.

With reference to the third aspect, in the first possible implementation, the receiving channel configuration information includes At least one in following information：

The processing unit is the information of the receiving channel that the UE is selected；

The receiving channel number that the UE can be selected.

With reference to the first possible implementation of the third aspect, in second possible implementation, institute The information for stating receiving channel includes：The pilot frequency port number of the UE corresponding with the receiving channel.

With reference to the third aspect, or the first or second possible implementation of the third aspect, at the third In possible implementation, the Transmit-Receive Unit is additionally operable to：It is that UE determines that reception is logical in the processing unit Before road configuration information, receive the UE and distinguish on corresponding transmission channel in the multiple receiving channels supported The uplink reference signals of transmission；

The processing unit specifically for：The uplink reference signals received based on the Transmit-Receive Unit are connect Signal intensity is received, the receiving channel configuration information is determined.

With reference to the third aspect, or any one in the first～tri- kind of possible implementation of the third aspect can The implementation of energy, in the 4th kind of possible implementation, the processing unit is additionally operable to：

It is determined that after the receiving channel configuration information, being the UE pairings；

The Transmit-Receive Unit specifically for：

After the successful matching, the receiving channel configuration information is sent to into the UE, and is based on institute Receiving channel configuration information is stated, and under MUBF transmission modes, the MIMO letters is sent to the UE Number；Wherein, the UE of successful matching can support forming multiuser wave beam MUBF transmission modes.

With reference to the 4th kind of possible implementation of the third aspect, in the 5th kind of possible implementation, institute Processing unit is stated specifically for matching for the UE according to following steps：

The up ginseng sent on corresponding transmission channel is distinguished based on the UE in the receiving channel for selecting Signal is examined, the single user wave beam forming SUBF weights of the UE are determined；SUBF based on the UE The descending metrical information that weights and the UE are reported, is that the UE is matched；

The processing unit is additionally operable to：According to the receiving channel configuration information based on the UE determines The SUBF weights of UE and the SUBF weights with other UE of UE pairings, determine the UE's MUBF weights；

The Transmit-Receive Unit specifically for：The MUBF weights of the UE determined based on the processing unit, The UE is sent to after being weighted to sent MIMO signal.

A kind of fourth aspect, there is provided multiple-input and multiple-output MIMO transmission device, including：

Transmit-Receive Unit, is sent to the receiving channel configuration information of user equipment (UE) for receiving network equipment； The receiving channel configuration information is used to indicate that the UE selects the reception network equipment to be sent The receiving channel of MIMO signal, the number of the receiving channel is less than the receiving channel that the UE is supported Number；

Processing unit, for the receiving channel configuration information received based on the Transmit-Receive Unit, from described Select for receiving the sent MIMO signal of the network equipment in multiple receiving channels that UE is supported Receiving channel；Based on the receiving channel for selecting, the MIMO letters that the network equipment sends are received Number.

With reference to fourth aspect, in the first possible implementation, the receiving channel configuration information includes At least one in following information：

With reference to the first possible implementation of fourth aspect, in second possible implementation, institute The information for stating receiving channel includes：The pilot frequency port number of the UE corresponding with the receiving channel.

With reference to the first possible implementation of fourth aspect, in the third possible implementation, if The receiving channel configuration information includes receiving channel number N that the UE can be selected, then the process Unit specifically for：

Based on the received signal strength that downlink reference signal is received in the plurality of receiving channel, from described N number of receiving channel is selected in multiple receiving channels that UE is supported.

With reference to fourth aspect, or any one in the first～tri- kind of possible implementation of fourth aspect can The implementation of energy, in the 4th kind of possible implementation, the Transmit-Receive Unit is additionally operable to：

For receiving the sent MIMO signal of the network equipment described in selecting in the processing unit Receiving channel distinguish on corresponding transmission channel, send uplink reference signals.

With reference to the 4th kind of possible implementation of fourth aspect, in the 5th kind of possible implementation,

Then the Transmit-Receive Unit specifically for：

By carrying out antenna switching, described for receiving the sent MIMO signal of the network equipment Receiving channel distinguish on corresponding transmission channel, send uplink reference signals.

In terms of 5th, there is provided a kind of network equipment for MIMO transmission, including：Processor, deposit Reservoir and bus；The memory storage execute instruction, when the network equipment runs, the process Pass through bus communication between device and the memorizer so that the following execute instruction of the computing device：

Receiving channel configuration information is determined for user equipment (UE)；The receiving channel configuration information is used to indicate The UE selects the receiving channel for receiving the sent MIMO signal of network equipment, the receiving channel The receiving channel number that number is supported less than the UE；

The receiving channel configuration information is sent to into the UE；

Based on the receiving channel configuration information, MIMO signal is sent to the UE.

In terms of the 5th, in the first possible implementation, the receiving channel configuration information includes At least one in following information：

The information of the receiving channel selected for the UE；

The receiving channel number that the UE can be selected.

With reference to the first the possible implementation in terms of the 5th, in second possible implementation, institute The information for stating receiving channel includes：The pilot frequency port number of the UE corresponding with the receiving channel.

In terms of the 5th, or the first in terms of the 5th or second possible implementation, at the third It is in possible implementation, in the execute instruction of the computing device, described to determine reception for UE Before channel configuration information, also include：Receive the UE corresponding in the multiple receiving channel difference supported The uplink reference signals sent on transmission channel；

It is described to determine receiving channel configuration information for user equipment (UE), including：

Based on the received signal strength of the uplink reference signals for receiving, determine that the receiving channel matches somebody with somebody confidence Breath.

In terms of the 5th, or any one in the first～tri- kind of possible implementation in terms of the 5th can The implementation of energy, in the 4th kind of possible implementation, the execute instruction of the computing device In, it is described that the receiving channel configuration information is sent to into the UE, including：

Match for the UE；

After the successful matching, the receiving channel configuration information is sent to into the UE；Wherein, match somebody with somebody Forming multiuser wave beam MUBF transmission modes can be supported to successful UE；

It is described that MIMO signal is sent to the UE based on the receiving channel configuration information, including：

Based on the receiving channel configuration information, under MUBF transmission modes, send described to the UE MIMO signal.

With reference to the 4th kind of possible implementation in terms of the 5th, in the 5th kind of possible implementation, institute State in the execute instruction of computing device, it is described to match for the UE, including：

The up ginseng sent on corresponding transmission channel is distinguished based on the UE in the receiving channel for selecting Signal is examined, the single user wave beam forming SUBF weights of the UE are determined；

The descending metrical information that SUBF weights and the UE based on the UE are reported, is the UE Matched；

It is described based on the receiving channel configuration information, under MUBF transmission modes, to the UE send The MIMO signal, including：

According to based on the UE receiving channel configuration information determine the UE SUBF weights and with The SUBF weights of other UE of the UE pairings, determine the MUBF weights of the UE；

Based on a determination that the UE MUBF weights, after being weighted to sent MIMO signal It is sent to the UE.

In terms of 6th, there is provided a kind of user equipment (UE) for MIMO transmission, including：Processor, deposit Reservoir and bus；The memory storage execute instruction, when the user equipment runs, the processor Pass through bus communication between the memorizer so that the following execute instruction of the computing device：

Receive the receiving channel configuration information that network equipment is sent to UE；The receiving channel configuration information For indicating that the UE selects to receive the receiving channel of the sent MIMO signal of the network equipment, institute The number of receiving channel is stated less than the receiving channel number that the UE is supported；

Based on the receiving channel configuration information, select to be used in the multiple receiving channels supported from the UE Receive the receiving channel of the sent MIMO signal of the network equipment；

Based on the receiving channel for selecting, the MIMO signal that the network equipment sends is received.

In terms of the 6th, in the first possible implementation, the receiving channel configuration information includes At least one in following information：

With reference to the first the possible implementation in terms of the 6th, in second possible implementation, institute The information for stating receiving channel includes：The pilot frequency port number of the UE corresponding with the receiving channel.

With reference to the first the possible implementation in terms of the 6th, in the third possible implementation, if The receiving channel configuration information includes receiving channel number N that the UE can be selected, then the process It is in the execute instruction that device is performed, described based on the receiving channel configuration information, support from the UE Multiple receiving channels in select for receive the sent MIMO signal of the network equipment reception lead to Road, including：

In terms of the 6th, or any one in the first～tri- kind of possible implementation in terms of the 6th can The implementation of energy, in the 4th kind of possible implementation, the execute instruction of the computing device In, it is described based on the receiving channel configuration information, select in the multiple receiving channels supported from the UE After receiving the receiving channel of the sent MIMO signal of the network equipment, also include：

Corresponded in the receiving channel for receiving the sent MIMO signal of the network equipment respectively Transmission channel on, send uplink reference signals.

With reference to the 4th kind of possible implementation in terms of the 6th, in the 5th kind of possible implementation,

Then in the execute instruction of the computing device, described for receiving the network equipment institute The receiving channel for sending MIMO signal is distinguished on corresponding transmission channel, sends uplink reference signals, bag Include：

Using such scheme, network equipment can indicate that UE selects the part receiving channel supported to carry out down Row is received, and such that it is able to reduce interference component present in the MIMO signal for being sent to UE, and is increased and is Unite attachable UE numbers.

Description of the drawings

Fig. 1 is 10 structural representation of mimo transmission system provided in an embodiment of the present invention；

The MIMO transmission method flow chart that Fig. 2 is provided for one embodiment of the invention；

The MIMO transmission method flow chart that Fig. 3 is provided for another embodiment of the application；

Fig. 4 is MIMO transmission apparatus structure schematic diagram provided in an embodiment of the present invention；

The MIMO transmission apparatus structure schematic diagram that Fig. 5 is provided for another embodiment of the present invention；

Fig. 6 is 60 structural representation of network equipment provided in an embodiment of the present invention；

70 structural representation of user equipment (UE) that Fig. 7 is provided for another embodiment of the present invention.

Specific embodiment

As shown in figure 1, being 10 structural representation of mimo transmission system provided in an embodiment of the present invention, wrap Include：

Network equipment 11, for determining receiving channel configuration information for user equipment (UE) 12, by what is determined Receiving channel configuration information is sent to UE12, and based on a determination that receiving channel configuration information, to UE12 Send MIMO signal；The receiving channel configuration information is used to indicate that the UE selects to receive the network The receiving channel of the sent MIMO signal of side apparatus, the number of the receiving channel are supported less than the UE Receiving channel number；

UE 12, for based on the receiving channel configuration information for receiving, from multiple receptions that the UE is supported Select in passage for receiving the receiving channel of the sent MIMO signal of the network equipment, and be based on The receiving channel of selection, receives the MIMO signal that network equipment 11 sends.

In Massive MIMO transmissions, if each UE is using more receiving channel, each UE connects Interference component in the MIMO signal of receipts can also be greatly increased, this is because under MU-MIMO scenes, In order to improve multi-user transmission performance, it is generally directed to each UE and sends a data flow, so, network side Equipment for UE calculate forming multiuser wave beam (Multi-User Beamforming, MUBF) weights when, The corresponding single user wave beam forming (Single-User of this data flow in channel matrix can be selected only Beamforming, SUBF) weights carry out the calculating of MUBF weights, without considering in channel matrix Other the SUBF weights for existing, the interference component of the MIMO signal for causing to be sent to UE are very big.Except this Outside, each UE is required on the transmission channel of the antenna corresponding to each receiving channel at itself, is sent out Detection reference signal (Sounding Reference Signal, SRS) is sent, is carried out down in order to network equipment Row channel estimation, and the transmission resource of SRS is limited, the increase of UE receiving channel numbers, it will limit The attachable UE numbers of system processed.

Based on the problems referred to above, in embodiments of the present invention, network equipment can indicate that UE selects what is supported Part receiving channel carries out downlink reception, such that it is able to reduce present in the MIMO signal for being sent to UE Interference component, and increase the attachable UE numbers of system.

The embodiment of the present invention is described in further detail with reference to Figure of description.

As shown in Fig. 2 the MIMO transmission method flow chart provided for one embodiment of the invention, including with Lower step：

S201：Network equipment determines receiving channel configuration information for UE；The receiving channel configuration information For indicating that the UE selects to receive the receiving channel of the sent MIMO signal of the network equipment, institute The number of receiving channel is stated less than the receiving channel number that the UE is supported.

Before the step is performed, network equipment can carry out channel correcting first, to carry out wave beam forming (Beamforming, BF) is ready.

Here, receiving channel configuration information can include：Network equipment is the receiving channel that UE is selected One or two in both receiving channel numbers that information and UE can be selected, specifically, network side sets It is standby the receiving channel to be indicated using the pilot frequency port number of the UE corresponding to each receiving channel, than Such as, the SRS pilot frequency ports number of UE include 1 and 2, if the receiving channel configuration information indicates SRS pilot tones Port numbers 1, then UE only corresponding to SRS pilot frequency ports number 1 receiving channel (receiving channel with should Pilot frequency port number correspondence the same antenna) on carry out downlink reception.Network equipment is that the reception that UE is selected is led to The total number of all receiving channels that the number in road is supported less than the UE.

In specific implementation process, network equipment can determine what the UE should be used for each UE Receiving channel.Specifically, receiving channel can be randomly choosed for UE, it is also possible to based on what is sent to UE The received signal strength of uplink reference signals (such as SRS), is that UE selects receiving channel；The reception of selection The number of passage can be default, it is also possible to what network equipment determined.Or, network equipment also may be used With number N that receiving channel is determined as UE only, network equipment and UE are each according to receiving to square signal Received signal strength determining this N number of receiving channel；In this manner, network equipment is determined N number of receiving channels for being used of UE, it is identical with N number of receiving channel that the UE is determined.

Network equipment in the embodiment of the present application can be specifically base station.

S202：The receiving channel configuration information of determination is sent to the UE by network equipment.

S203：Network equipment is based on the receiving channel configuration information, sends MIMO letters to the UE Number.

The MIMO signal being related in the embodiment of the present application is primarily referred to as the MIMO signal of user class, namely Downlink service data is transmitted to UE using MIMO method.

Due to the embodiment of the present application be mainly used in MUBF transmission modes (for SUBF transmission modes, If reducing the receiving channel quantity of UE, it will reduce performance gain), in specific implementation process, network Side apparatus it is determined that need to carry out UE MU-MIMO transmission, namely can be determined using MUBF biographies After defeated pattern, then the receiving channel configuration information is sent to UE, however, it is determined that need to carry out UE SU-MIMO is transmitted, namely is determined using SUBF transmission modes, then can be logical without sending the reception Road configuration information, UE can carry out downlink reception based on its all receiving channel supported.

Network equipment, can be default at each after it is determined that needing to carry out MU-MIMO transmission to UE In dispatching cycle (such as 10ms), the receiving channel configuration information is sent to UE；Or, it is determined that When needing the receiving channel configuration information for updating the UE, the receiving channel after updating is sent to the UE Configuration information；Or, the receiving channel configuration information and MIMO signal are sent jointly to into the UE, UE after receiving channel configuration information is received, according to the receiving channel configuration information, selects to receive MIMO The receiving channel of signal, that is, carrying out the detection of MIMO signal using the receiving channel of selection.

S204：Receiving channel configuration informations of the UE based on reception, from multiple receiving channels that the UE is supported It is middle to select for receiving the receiving channel of the sent MIMO signal of the network equipment.

S205：UE receives the MIMO signal that network equipment sends based on the receiving channel for selecting.

Here, UE directly can receive MU-MIMO in N number of receiving channel that network equipment is indicated Signal, it is also possible to be primarily based on receiving channel number N of network equipment instruction, with reference to multiple what is supported The received signal strength of downlink reference signal is received in receiving channel, from multiple receiving channels that the UE is supported Middle to select N number of receiving channel, N is the positive integer more than or equal to 1.Here downlink reference signal can be with It is cell specific reference signal (Cell-Specific Reference Signal, CRS), or channel status letter Breath reference signal (Channel State Information-Reference Signal, CSI-RS) etc..

The embodiment of the present application is described further below by an another embodiment.

As shown in figure 3, the MIMO transmission method flow chart provided for another embodiment of the present invention, including Following steps：

S301：Network equipment receives UE and distinguishes on corresponding transmission channel in the multiple receiving channels supported The uplink reference signals of transmission.

Here uplink reference signals can specifically refer to SRS.

S302：Reception of the network equipment based on the corresponding uplink reference signals of each receiving channel of UE is believed Number intensity, is that UE determines receiving channel configuration information；The receiving channel configuration information is described for indicating UE selects the receiving channel for receiving the sent MIMO signal of the network equipment, the receiving channel The receiving channel number that number is supported less than the UE.

In specific implementation process, network equipment can distinguish corresponding SRS based on each receiving channel Received signal strength, determines the receiving channel configuration information.Such as, receiving channel configuration information is concrete The information of receiving channel is indicated, network equipment can adopt Reference Signal Received Power (Reference Signal Receiving Power, RSRP) weighing received signal strength, will be RSRP larger N number of SRS transmission channels respectively corresponding receiving channel be defined as the UE and need the N number of reception for using to lead to Road.

S303：Network equipment is distinguished on corresponding transmission channel in the receiving channel for selecting based on the UE The uplink reference signals of transmission, determine the SUBF weights of the UE.

In this step, network equipment is directed at least one receiving channel selected for UE, based on this extremely SRS of few receiving channel respectively on corresponding transmission channel carries out down channel estimation, and based on carrying out Down channel is estimated, is SUBF weights of the UE calculating under at least one receiving channel for selecting, namely Partial channel knowledge based on the UE for selecting calculates SUBF weights.

S304：The descending survey that SUBF weights and the UE of the network equipment based on the UE are reported Amount information, is that the UE is matched.

In this step, network equipment can be according to the descending metrical information of UE feedbacks, such as channel quality Indicate (Channel Quality Indicator, CQI), channel be lost instruction (Rank Indication, RI), Pre-coding matrix instruction (Precoding Matrix Indicator, PMI) etc., is combined into the SUBF of UE calculating Weights, are matched for the UE based on default pairing criterion, such as based on peak transfer rate criterion, The UE higher with speed is matched.If UE and other any UE matched after and speed all Speed when individually transmitting less than each UE before pairing, then do not matched the UE with other UE.It is false Make network equipment and fail for UE pairings, then execution step S305, otherwise execution step S306.

S305：After network equipment is UE pairing failures, connect in all of support based on the UE The SRS sent on passage is received, the SUBF weights of the UE is determined, and is treated based on the SUBF weights The MIMO signal of transmission is sent to the UE after being weighted.

In specific implementation process, if network equipment is UE pairing failures, SUBF can be selected to pass Defeated pattern sends MIMO signal to UE, under SUBF transmission modes, in order to improve transmission performance, base The calculating of SUBF weights is carried out in whole channel informations of UE, and sends MIMO signal.Such case Under do not carry out the transmission of receiving channel configuration information, whole receiving channels that UE is supported using itself receive bases In the MIMO signal of SUBF transmission modes transmission.

This branch stops after S305 has been performed.

S306：After network equipment is UE successful matchings, configured according to the receiving channel based on the UE The SUBF weights of the UE that information determines and the SUBF weights with other UE of UE pairings, Determine the MUBF weights of the UE, then perform S307.

Here, the UE of successful matching can support MUBF transmission modes, it should be noted that pairing exists UE together can be two, it is also possible to more than two.In the step, based on each UE being paired together SUBF weights, calculate the MUBF weights of each UE.

S307：The receiving channel configuration information is sent to the UE by network equipment, and based on a determination that The UE MUBF weights, the UE is sent to after being weighted to sent MIMO signal, Then perform S308.

In the step, network equipment can be using the receiving channel configuration information for determining as to be sent The Downlink Control Information of MIMO signal, sends jointly to UE with the MIMO signal after weighting.

In being embodied as, network equipment can pass through broadcast signaling or proprietary signaling and send reception to UE Channel configuration information, can pass through Physical Downlink Control Channel (Physical Downlink Control Channel, PDCCH) the receiving channel configuration information is sent to UE, it is also possible to by Radio Resource control System (Radio Resource Control, RRC) signaling sends the receiving channel configuration information to UE.

S308：UE is based on the receiving channel configuration information, in the multiple receiving channels supported from the UE Select for receiving the receiving channel of the sent MIMO signal of the network equipment.

In being embodied as, if directly indicating what is selected in network equipment receiving channel configuration information The information of receiving channel, such as indicates SRS pilot frequency ports number, then can directly select SRS pilot tones end Receiving channel corresponding to slogan；If receiving channel configuration information indicates the receiving channel that UE can be selected Number N, then UE can be based on the reception signal that downlink reference signal is received in the plurality of receiving channel Intensity, selects N number of receiving channel in the multiple receiving channels supported from itself, such as strong according to signal is received Degree selects received signal strength in N number of receiving channel of front N names by by force to weak order.

S309：UE receives the MIMO signal that the network equipment sends based on the receiving channel for selecting.

Alternatively, after S309, UE can be sent for receiving the network equipment what is selected The receiving channel of MIMO signal is distinguished on corresponding transmission channel, sends uplink reference signals；Certainly, UE Still can also distinguish in whole receiving channels uplink reference signals are sent on corresponding transmission channel.This In, the receiving channel with corresponding relation and transmission channel share identical antenna.

For whether UE is needed in the transmission channel corresponding to the receiving channel of part, namely send out on some antennas Uplink reference signals, such as SRS are sent, in addition to considering the needs of MUBF, in addition it is also necessary to consider uplink service The scheduling of resource.Such as, if terminal is supported to send uplink business data on a transmission channel, at two Downlink service data is received in receiving channel, if now degenerate to UE receiving in a receiving channel MIMO signal, it is also possible to while UE is degenerated to sends SRS on a transmission channel, so just Transmission with uplink business data matches.But if terminal supports industry is sent on two transmission channels Business data, receive downlink service data, in two receiving channels if now degenerate to UE connecing at one Receive and MIMO signal is received on passage, in order to preferably carry out ascending resource scheduling, it is also possible to send out at two Penetrate, so as to measure Signal to Interference plus Noise Ratio (Signal to Interference plus Noise Ratio, The information such as SINR), network equipment when SUBF weights are calculated can a selected section transmission channel ( The corresponding transmission channel of at least one receiving channel for selecting) on the SRS that sends carry out channel and estimate Meter.Certainly, in order to save SRS resource, support that more UE connect number, it is also possible to consider appropriate sacrifice Part uplink service performance.

In being embodied as, as network equipment needs the channel for obtaining at least one receiving channel to estimate Meter information, when the UE can support for and meanwhile send upward signal transmission channel number be less than institute State for receiving the number of the receiving channel of the sent MIMO signal of the network equipment, UE can lead to Crossing carries out antenna switching, in the reception for receiving the sent MIMO signal of the network equipment Passage is distinguished on corresponding transmission channel, sends uplink reference signals.Such as, be UE determine for connecing The number for receiving the receiving channel of the sent MIMO signal of the network equipment is 2, the use that UE is supported There was only 1 in the transmission channel number for sending uplink reference signals simultaneously, then can be on two antennas in turn The transmission of uplink reference signals is carried out, so that network equipment obtains the channel-estimation information of 2 receiving channels.

Based on same inventive concept, a kind of and MIMO transmission method pair in the embodiment of the present invention, is additionally provided The MIMO transmission device answered, due to the MIMO of the principle and the embodiment of the present invention of the device solve problem Transmission method is similar, therefore the enforcement of the device may refer to the enforcement of method, repeats part and repeats no more.

As shown in figure 4, be MIMO transmission apparatus structure schematic diagram provided in an embodiment of the present invention, including：

Processing unit 41, for determining receiving channel configuration information for user equipment (UE)；The receiving channel Configuration information is used for the receiving channel for indicating the sent MIMO signal of the UE selections reception described device, The receiving channel number that the number of the receiving channel is supported less than the UE；

Transmit-Receive Unit 42, the receiving channel configuration information for the processing unit 41 is determined are sent to institute UE is stated, and is based on the receiving channel configuration information, MIMO signal is sent to the UE.

Alternatively, the receiving channel configuration information includes at least one in following information：

The processing unit 41 is the information of the receiving channel that the UE is selected；

The receiving channel number that the UE can be selected.

Alternatively, the information of the receiving channel includes：The UE's corresponding with the receiving channel leads Frequency port numbers.

Alternatively, the Transmit-Receive Unit 42 is additionally operable to：It is that UE determines that reception is logical in the processing unit 41 Before road configuration information, receive the UE and distinguish on corresponding transmission channel in the multiple receiving channels supported The uplink reference signals of transmission；

The processing unit 41 specifically for：The described up reference letter received based on the Transmit-Receive Unit 42 Number received signal strength, determine the receiving channel configuration information.

Alternatively, the processing unit 41 is additionally operable to：

The Transmit-Receive Unit 42 specifically for：

Alternatively, the processing unit 41 is specifically for matching for the UE according to following steps：

The processing unit 41 is additionally operable to：Determined according to the receiving channel configuration information based on the UE The SUBF weights of the UE and the SUBF weights with other UE of UE pairings, it is determined that described The MUBF weights of UE；

The Transmit-Receive Unit specifically for：The MUBF of the UE determined based on the processing unit 41 Weights, are sent to the UE after being weighted to sent MIMO signal.

As shown in figure 5, the MIMO transmission apparatus structure schematic diagram provided for another embodiment of the present invention, Including：

Transmit-Receive Unit 51, is sent to the receiving channel configuration information of UE for receiving network equipment；It is described Receiving channel configuration information is used to indicate that the UE selects to receive the sent MIMO letters of the network equipment Number receiving channel, the number of the receiving channel is less than the receiving channel number that the UE is supported；

Processing unit 52, for the receiving channel configuration information received based on the Transmit-Receive Unit 51, Select for receiving the sent MIMO of the network equipment in the multiple receiving channels supported from the UE The receiving channel of signal；Based on the receiving channel for selecting, receive what the network equipment sent MIMO signal.

Alternatively, if the receiving channel configuration information includes the receiving channel number that the UE can be selected N, then the processing unit 52 specifically for：

Alternatively, the Transmit-Receive Unit 51 is additionally operable to：

Believe for receiving the sent MIMO of the network equipment described in selecting in the processing unit 52 Number receiving channel distinguish on corresponding transmission channel, send uplink reference signals.

Alternatively, if the UE can support for and meanwhile send upward signal transmission channel number it is little In the number for receiving the receiving channel of the sent MIMO signal of the network equipment,

Then the Transmit-Receive Unit 51 specifically for：

The device of Fig. 4 and Fig. 5 is worked in coordination all method and steps being able to carry out in Fig. 2 and Fig. 3 embodiments.

As shown in fig. 6, be 60 structural representation of network equipment provided in an embodiment of the present invention, including： Processor 61, memorizer 62 and bus 63；The memorizer 62 stores execute instruction, when the network When side apparatus 60 run, communicated by bus 63 between the processor 61 and the memorizer 62, made Obtain the processor 61 and perform following execute instruction：

Receiving channel configuration information is determined for user equipment (UE)；The receiving channel configuration information is used to indicate The UE selects the receiving channel for receiving 60 sent MIMO signal of network equipment, the reception to lead to The receiving channel number that the number in road is supported less than the UE；

The receiving channel configuration information is sent to into the UE；

The information of the receiving channel selected for the UE；

The receiving channel number that the UE can be selected.

Alternatively, it is in the execute instruction that the processor 61 is performed, described to determine that reception is logical for UE Before road configuration information, also include：Receive the UE corresponding is distinguished in the multiple receiving channels supported Penetrate the uplink reference signals sent on passage；

Alternatively, it is in the execute instruction that the processor 61 is performed, described that the receiving channel is matched somebody with somebody Confidence breath is sent to the UE, including：

Match for the UE；

It is alternatively, in the execute instruction that the processor 61 is performed, described to match for the UE, Including：

As shown in fig. 7,70 structural representation of user equipment (UE) provided for yet another embodiment of the invention, bag Include：Processor 71, memorizer 72 and bus 73；The memorizer 72 stores execute instruction, when described When user equipment 70 runs, communicated by bus 73 between the processor 71 and the memorizer 72, So that the processor 71 performs following execute instruction：

Alternatively, if the receiving channel configuration information includes the receiving channel number that the UE can be selected N, then it is in the execute instruction that the processor 71 is performed, described based on the receiving channel configuration information, Select for receiving the sent MIMO of the network equipment in the multiple receiving channels supported from the UE The receiving channel of signal, including：

Alternatively, it is in the execute instruction that the processor 71 is performed, described based on the receiving channel Configuration information, selects for receiving the network equipment institute in the multiple receiving channels supported from the UE After sending the receiving channel of MIMO signal, also include：

In the execute instruction that then processor 71 is performed, set for receiving the network side described The receiving channel of standby sent MIMO signal is distinguished on corresponding transmission channel, sends uplink reference signals, Including：

Those skilled in the art are it should be appreciated that embodiments of the invention can be provided as method, system or meter Calculation machine program product.Therefore, the present invention can be using complete hardware embodiment, complete software embodiment or knot The form of the embodiment in terms of conjunction software and hardware.And, the present invention can be using wherein wrapping at one or more Computer-usable storage medium containing computer usable program code (including but not limited to disk memory, CD-ROM, optical memory etc.) on the form of computer program implemented.

The present invention be with reference to method according to embodiments of the present invention, device (system), and computer program produce The flow chart and/or block diagram of product is describing.It should be understood that can by computer program instructions flowchart and / or block diagram in each flow process and/or square frame and flow chart and/or the flow process in block diagram and/ Or the combination of square frame.These computer program instructions can be provided to general purpose computer, special-purpose computer, embedded The processor of formula datatron or other programmable data processing devices is producing a machine so that by calculating The instruction of the computing device of machine or other programmable data processing devices is produced for realizing in flow chart one The device of the function of specifying in individual flow process or one square frame of multiple flow processs and/or block diagram or multiple square frames.

These computer program instructions may be alternatively stored in and computer or other programmable datas process can be guided to set In the standby computer-readable memory for working in a specific way so that be stored in the computer-readable memory Instruction produce and include the manufacture of command device, command device realization is in one flow process or multiple of flow chart The function of specifying in one square frame of flow process and/or block diagram or multiple square frames.

These computer program instructions can be also loaded in computer or other programmable data processing devices, made Obtain and series of operation steps is performed on computer or other programmable devices to produce computer implemented place Reason, so as to the instruction performed on computer or other programmable devices is provided for realizing in flow chart one The step of function of specifying in flow process or one square frame of multiple flow processs and/or block diagram or multiple square frames.

, but those skilled in the art once know base although preferred embodiments of the present invention have been described This creative concept, then can make other change and modification to these embodiments.So, appended right will Ask and be intended to be construed to include preferred embodiment and fall into the had altered of the scope of the invention and change.

Obviously, those skilled in the art can carry out various changes and modification without deviating from this to the present invention Bright spirit and scope.So, if the present invention these modification and modification belong to the claims in the present invention and Within the scope of its equivalent technologies, then the present invention is also intended to comprising these changes and modification.

Claims

1. a kind of multiple-input and multiple-output MIMO transmission method, it is characterised in that the method includes：

The network equipment is based on the receiving channel configuration information, sends the MIMO to the UE Signal.

2. the method for claim 1, it is characterised in that the receiving channel configuration information includes At least one in following information：

The receiving channel number that the UE can be selected.

3. method as claimed in claim 2, it is characterised in that the information of the receiving channel includes： The pilot frequency port number of the UE corresponding with the receiving channel.

4. the method as described in claims 1 to 3 is arbitrary, it is characterised in that the network equipment is UE Before determining receiving channel configuration information, also include：

5. the method as described in Claims 1 to 4 is arbitrary, it is characterised in that the network equipment is by institute State receiving channel configuration information and be sent to the UE, including：

The network equipment is matched for the UE；

6. method as claimed in claim 5, it is characterised in that the network equipment is the UE Pairing, including：

7. a kind of multiple-input and multiple-output MIMO transmission method, it is characterised in that the method includes：

The UE based on described in selecting for receiving connecing for the sent MIMO signal of the network equipment Passage is received, the MIMO signal that the network equipment sends is received.

8. method as claimed in claim 7, it is characterised in that the receiving channel configuration information includes At least one in following information：

9. method as claimed in claim 8, it is characterised in that the information of the receiving channel includes： The pilot frequency port number of the UE corresponding with the receiving channel.

10. method as claimed in claim 8, it is characterised in that if the receiving channel configuration information bag Receiving channel number N that the UE can be selected is included, then the UE matches somebody with somebody confidence based on the receiving channel Breath, selects to be sent for receiving the network equipment in the multiple receiving channels supported from the UE The receiving channel of MIMO signal, including：

11. methods as described in claim 7～10 is arbitrary, it is characterised in that the UE is based on described Receiving channel configuration information, selects for receiving the network in the multiple receiving channels supported from the UE After the receiving channel of the sent MIMO signal of side apparatus, also include：

12. methods as claimed in claim 11, it is characterised in that

13. a kind of multiple-input and multiple-output MIMO transmission devices, it is characterised in that the device includes：

Transmit-Receive Unit, for the receiving channel configuration information that the processing unit determines is sent to the UE, And the receiving channel configuration information is based on, the MIMO signal is sent to the UE.

14. devices as claimed in claim 13, it is characterised in that the receiving channel configuration information bag Include at least one in following information：

The receiving channel number that the UE can be selected.

15. devices as claimed in claim 14, it is characterised in that the information of the receiving channel includes： The pilot frequency port number of the UE corresponding with the receiving channel.

16. devices as described in claim 13～15 is arbitrary, it is characterised in that the Transmit-Receive Unit is also used In：Before the processing unit determines receiving channel configuration information for UE, receive the UE and supporting Multiple receiving channels distinguish the uplink reference signals sent on corresponding transmission channel；

17. devices as described in claim 13～16 is arbitrary, it is characterised in that the processing unit is also used In：

The Transmit-Receive Unit specifically for：

18. devices as claimed in claim 17, it is characterised in that the processing unit is specifically for root Match for the UE according to following steps：

19. a kind of multiple-input and multiple-output MIMO transmission devices, it is characterised in that the device includes：

Processing unit, for the receiving channel configuration information received based on the Transmit-Receive Unit, from described Select for receiving the sent MIMO signal of the network equipment in multiple receiving channels that UE is supported Receiving channel；Based on described in selecting for receiving connecing for the sent MIMO signal of the network equipment Passage is received, the MIMO signal that the network equipment sends is received.

20. devices as claimed in claim 19, it is characterised in that the receiving channel configuration information bag Include at least one in following information：

21. devices as claimed in claim 20, it is characterised in that the information of the receiving channel includes： The pilot frequency port number of the UE corresponding with the receiving channel.

22. devices as claimed in claim 20, it is characterised in that if the receiving channel configuration information Including receiving channel number N that the UE can be selected, then the processing unit specifically for：

23. devices as described in claim 19～22 is arbitrary, it is characterised in that the Transmit-Receive Unit is also used In：

24. devices as claimed in claim 23, it is characterised in that

Then the processing unit is additionally operable to carry out antenna switching, so as to the Transmit-Receive Unit described for receiving The receiving channel of the sent MIMO signal of the network equipment is distinguished on corresponding transmission channel, sends Uplink reference signals.