CN105612777B

CN105612777B - Measure method, user equipment and the transmitting terminal of channel quality

Info

Publication number: CN105612777B
Application number: CN201480000299.9A
Authority: CN
Inventors: 温容慧; 周明宇; 孙伟
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2014-03-28
Filing date: 2014-03-28
Publication date: 2019-03-26
Anticipated expiration: 2034-03-28
Also published as: WO2015143690A1; CN105612777A

Abstract

The invention discloses a kind of method, user equipment and transmitting terminals for measuring channel quality.This method comprises: the first UE receives the first reference signal that transmitting terminal is sent；First UE according to first reference signal determine the transmitting terminal to the first UE channel first kind channel quality；First UE receives the second reference signal that the 2nd UE is sent, wherein the 2nd UE is the neighbouring UE of the first UE；First UE according to first reference signal and second reference signal determine the transmitting terminal to the first UE channel the second class channel quality, wherein, which indicates using the 2nd UE as the channel quality of the channel of transmitting terminal when interference source to the first UE；First UE sends the first kind channel quality and the second class channel quality to the transmitting terminal.Method, user equipment and the transmitting terminal of the measurement channel quality of the embodiment of the present invention, can be improved transmission quality.

Description

Measure method, user equipment and the transmitting terminal of channel quality

Technical field

The present invention relates to the communications fields, and more particularly, to method, user equipment and the transmission of measurement channel quality End

Background technique

Long term evolution (Long Term Evolution, LTE) system supports time division duplex (Time Division Duplex, TDD) and frequency division duplex (Frequency Division Duplex, FDD) mode.But as what flow needed climbs It rises, frequency spectrum resource seems growing tension, therefore constantly has new technology to introduce to improve the utilization rate of existing resource.

Upstream and downstream bandwidth is equal in FDD system, but uplink and downlink portfolio is not necessarily symmetrical, and downlink business is generally big In uplink service, this results in the waste of resource.It can dynamically be utilized now with the big website of technical support downlink business demand Idle upstream band transmits downlink data, to make full use of resource.However, the cell of surrounding may still keep original frequency band Resource transmission direction causes neighboring area signal sending direction different.If in neighboring community's fringe region, belonging to different community User equipment (User Equipment, UE) signal transmission direction is different.Since two UE are closer, uplink signal is sent The UE that downlink signal is received in UE docking has strong jamming generation.

LTE TDD system can be according to the variation of the business demand of uplink and downlink, dynamic or semi-static adjustment uplink and downlink resource Proportion, i.e., " dynamic TDD system ".In dynamic TDD system, equally exists in synchronization, neighboring community's fringe region, belongs to not It is different with the UE signal transmission direction of cell.

When adjacent cell transmission direction difference, the user of downlink signal is received, is sent uplink signal user by adjacent area Interference.The distance between intensity and user of adjacent area user interference and interfere the transmission power of user related.In general, distance The closer user emission power in base station is lower, and the distance apart from adjacent area user also farther out, the user of downlink signal is received to adjacent area It interferes smaller；Apart from base station, user farther out's transmission power is higher, and the distance apart from adjacent area user is also relatively close, under receiving to adjacent area User's interference of row signal is larger；Especially, edge region sends the user of uplink signal for being in same edge region Downlink reception user interference strength it is very big.When adjacent cell transmission direction is identical, user measures down channel quality, interference Source is neighbor base station, it is believed that disturbance fluctuation very little.When adjacent area transmission direction difference, if according to adjacent cell transmission direction Identical situation measurement, the channel quality measured may there are relatively large deviations with actual channel quality, and then when leading to scheduling The modulation of use and coding strategy (Modulation and Coding Scheme, MCS) inaccuracy, to influence to transmit matter Amount.

Summary of the invention

The embodiment of the invention provides a kind of method, user equipment and transmitting terminals for measuring channel quality, can be improved biography Transmission quality.

In a first aspect, providing a kind of method for measuring channel quality, comprising:

First UE receives the first reference signal that transmitting terminal is sent；

First UE according to first reference signal determine the transmitting terminal to the first UE channel first kind channel matter Amount；

First UE receives the second reference signal that the 2nd UE is sent, wherein the 2nd UE is the neighbouring UE of the first UE；

First UE according to first reference signal and second reference signal determine the transmitting terminal to the first UE letter The second class channel quality in road, wherein the second class channel quality expression is arrived the 2nd UE as transmitting terminal when interference source The channel quality of the channel of first UE；

First UE sends the first kind channel quality and the second class channel quality to the transmitting terminal.

With reference to first aspect, in the first possible implementation, second that the 2nd UE is sent is received in the first UE Before reference signal, this method further include:

First UE obtains the reference signal information of the 2nd UE；

First UE receives the second reference signal that the 2nd UE is sent, comprising:

First UE receives second reference signal according to the reference signal information of the 2nd UE.

The possible implementation of with reference to first aspect the first, in the second possible implementation, the first UE According to the reference signal information of the 2nd UE, second reference signal is received, comprising:

First UE is according to the reference signal information of the 2nd UE, in the sending instant of second reference signal, this Second reference signal is received on the corresponding subband of two reference signals；

First UE according to first reference signal and second reference signal determine the transmitting terminal to the first UE letter The second class channel quality in road, comprising:

First UE according to first reference signal and second reference signal determine the transmitting terminal to the first UE letter The the second class channel quality of road on the sending instant subband.

First with reference to first aspect or two kind of possible implementation, in the third possible implementation, this One UE obtains the reference signal information of the 2nd UE, comprising:

First UE receives the reference signal information for the 2nd UE that base station is sent.

Any possible realization with reference to first aspect or in the first to three kind of possible implementation of first aspect Mode, in the fourth possible implementation, before the second reference signal that the first UE receives that the 2nd UE is sent, the party Method further include:

First UE receive base station send two class channel quality of report notice, the notice be used to indicate the first UE to The transmitting terminal sends the first kind channel quality and the second class channel quality.

Second aspect provides a kind of method for measuring channel quality, comprising:

Transmitting terminal sends the first reference signal to the first UE；

The transmitting terminal receive the first UE transmission the transmitting terminal to the first UE channel first kind channel quality with Second class channel quality, wherein the first kind channel quality determines by the first UE according to first reference signal, second class Channel quality is determined that second reference signal is by the 2nd UE by the first UE according to first reference signal and the second reference signal It sends, the 2nd UE is the neighbouring UE of the first UE, which indicates to be somebody's turn to do using the 2nd UE as when interference source Transmitting terminal to the first UE channel channel quality；

The transmitting terminal sends data to the first UE according to the first kind channel quality or the second class channel quality.

In conjunction with second aspect, in the first possible implementation, in the transmitting terminal according to the first kind channel quality Or before the second class channel quality sends data to the first UE, this method further include:

The transmitting terminal obtains the scheduling information of the 2nd UE；

The transmitting terminal sends data, packet to the first UE according to the first kind channel quality or the second class channel quality It includes:

The transmitting terminal is selected according to the scheduling information of the 2nd UE according to the first kind channel quality or the second class channel Quality sends data to the first UE.

In conjunction with the first possible implementation of second aspect, in the second possible implementation, the transmitting terminal According to the scheduling information of the 2nd UE, selection is sent out according to the first kind channel quality or the second class channel quality to the first UE Send data, comprising:

If the 2nd UE sends data when the transmitting terminal sends data to the first UE, then the transmitting terminal according to this Two class channel qualities determine that modulation and coding strategy send data to the first UE；Alternatively,

If the 2nd UE does not send data, then the transmitting terminal is according to this when the transmitting terminal sends data to the first UE First kind channel quality determines that modulation and coding strategy send data to the first UE.

In conjunction with the first of second aspect or two kind of possible implementation, in the third possible implementation, the hair Sending end obtains the scheduling information of the 2nd UE, comprising:

The scheduling information for the 2nd UE that the serving BS that the transmitting terminal receives the 2nd UE is sent.

In conjunction with any possible realization in the first to three kind of possible implementation of second aspect or second aspect Mode, in the fourth possible implementation, the transmitting terminal are the serving BS of the first UE；

This method further include:

The transmitting terminal sends the reference signal information of the 2nd UE to the first UE, and the reference signal information of the 2nd UE is used Second reference signal is received according to the reference signal information of the 2nd UE in the first UE.

In conjunction with any possible realization in the possible implementation of first to fourth of second aspect or second aspect kind Mode, in a fifth possible implementation, the transmitting terminal are the serving BS of the first UE；

This method further include:

The transmitting terminal to the first UE send report two class channel qualities notice, the notice be used to indicate the first UE to The transmitting terminal sends the first kind channel quality and the second class channel quality.

The third aspect provides a kind of UE, comprising:

Receiving module, for receiving the first reference signal of transmitting terminal transmission, and the second ginseng that the 2nd UE of reception is sent Examine signal, wherein the 2nd UE is the neighbouring UE of the UE；

Determining module, for according to first reference signal determine the transmitting terminal to the UE channel first kind channel matter Amount, and according to first reference signal and second reference signal determine the transmitting terminal to the UE channel the second class channel Quality, wherein the second class channel quality is indicated using the 2nd UE as the letter of the channel of transmitting terminal when interference source to the UE Road quality；

Sending module, for sending the first kind channel quality and the second class channel quality to the transmitting terminal.

In conjunction with the third aspect, in the first possible implementation, the UE further include:

Module is obtained, for obtaining the reference signal information of the 2nd UE；

The receiving module is specifically used for the reference signal information according to the 2nd UE, receives second reference signal.

In conjunction with the first possible implementation of the third aspect, in the second possible implementation, the reception mould Block is specifically used for the reference signal information according to the 2nd UE, in the sending instant of second reference signal, in second reference Second reference signal is received on the corresponding subband of signal；

The determining module be specifically used for being determined according to first reference signal and second reference signal transmitting terminal to this The the second class channel quality of the channel of first UE on the sending instant subband.

In conjunction with the first of the third aspect or two kind of possible implementation, in the third possible implementation, this is connect Receive the reference signal information that module is also used to receive the 2nd UE of base station transmission；

The acquisition module is specifically used for obtaining the reference signal information of received 2nd UE of the receiving module.

In conjunction with any possible realization in the first to three kind of possible implementation of the third aspect or the third aspect Mode, in the fourth possible implementation, the receiving module are also used to receive the two class channel quality of report of base station transmission Notice, which is used to indicate the UE and sends the first kind channel quality and the second class channel quality to the transmitting terminal.

Fourth aspect provides a kind of transmitting terminal, comprising:

Sending module sends the first reference signal with to the first user equipment (UE)；

Receiving module, for receive the first UE transmission the transmitting terminal to the first UE channel first kind channel matter Amount and the second class channel quality, wherein the first kind channel quality determines by the first UE according to first reference signal, this Two class channel qualities are determined that second reference signal is by by the first UE according to first reference signal and the second reference signal Two UE are sent, and the 2nd UE is the neighbouring UE of the first UE, which indicates using the 2nd UE as interference source When the transmitting terminal to the first UE channel channel quality；

The sending module is also used to be sent according to the first kind channel quality or the second class channel quality to the first UE Data.

In conjunction with fourth aspect, in the first possible implementation, the transmitting terminal further include:

Module is obtained, for obtaining the scheduling information of the 2nd UE；

The sending module is specifically used for the scheduling information according to the 2nd UE, and selection is according to the first kind channel quality or is somebody's turn to do Second class channel quality sends data to the first UE.

In conjunction with the first possible implementation of fourth aspect, in the second possible implementation, the transmission mould Block is specifically used for,

If the 2nd UE sends data when sending data to the first UE, then determined according to the second class channel quality Modulation and coding strategy to the first UE send data；Alternatively,

If the 2nd UE does not send data, then true according to the first kind channel quality when sending data to the first UE System of setting the tone and coding strategy send data to the first UE.

In conjunction with the first of fourth aspect or two kind of possible implementation, in the third possible implementation, this is connect The scheduling information for the 2nd UE that the serving BS that receipts module is also used to receive the 2nd UE is sent；

The acquisition module is specifically used for obtaining the scheduling information of received 2nd UE of the receiving module.

In conjunction with any possible realization in the first to three kind of possible implementation of fourth aspect or fourth aspect Mode, in the fourth possible implementation, the transmitting terminal are the serving BS of the first UE；

The sending module is also used to send the reference signal information of the 2nd UE, the reference letter of the 2nd UE to the first UE Number information receives second reference signal according to the reference signal information of the 2nd UE for the first UE.

In conjunction with any possible realization in the possible implementation of first to fourth of fourth aspect or fourth aspect kind Mode, in a fifth possible implementation, the transmitting terminal are the serving BS of the first UE；

The sending module is also used to send the notice of two class channel qualities of report to the first UE, which is used to indicate this First UE sends the first kind channel quality and the second class channel quality to the transmitting terminal.

Based on the above-mentioned technical proposal, the embodiment of the present invention determines first by the first reference signal sent according to transmitting terminal Class channel quality, and the second class channel quality is determined according to the second reference signal that the first reference signal and neighbouring UE are sent, it can To obtain accurate channel quality, transmission quality can be improved.

Detailed description of the invention

In order to illustrate the technical solution of the embodiments of the present invention more clearly, will make below to required in the embodiment of the present invention Attached drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings other Attached drawing.

Figure 1A to Fig. 1 D is can be using the schematic diagram of the scene of the embodiment of the present invention.

Fig. 2 is the schematic flow chart of the method for the measurement channel quality of one embodiment of the invention.

Fig. 3 is the schematic diagram of the method for the channel quality of the measurement corresponding subband of the embodiment of the present invention.

Fig. 4 is the schematic flow chart of the method for the measurement channel quality of another embodiment of the present invention.

Fig. 5 is the schematic block diagram of the UE of one embodiment of the invention.

Fig. 6 is the schematic block diagram of the transmitting terminal of one embodiment of the invention.

Fig. 7 is the structural schematic diagram of the UE of another embodiment of the present invention.

Fig. 8 is the structural schematic diagram of the transmitting terminal of another embodiment of the present invention.

Specific embodiment

Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete Site preparation description, it is clear that described embodiment is a part of the embodiments of the present invention, rather than whole embodiments.Based on this hair Embodiment in bright, those of ordinary skill in the art's every other reality obtained without creative labor Example is applied, all should belong to the scope of protection of the invention.

The technical solution of the embodiment of the present invention can be applied to the different system of transmission direction of neighboring community or adjacent UE.

For example, Figure 1A to Fig. 1 D is can be using the schematic diagram of the scene of the embodiment of the present invention.

In figure 1A, the UE102 that base station 104 services is located at the fringe region of the cell of base station 104, and apart from base station 103 The UE101 of service is closer, i.e. UE102 is the neighbouring UE of UE101.In the transmission direction difference of UE101 and UE102, for example, Synchronization, UE101 receive the downlink signal that base station 103 is sent, and UE102 sends uplink signal to base station 104, and UE102 is sent Uplink signal can to UE101 receive downlink signal interfere.

In fig. ib, base station 113 and base station 114 are adjacent, and UE111 is located at the fringe region of the cell of base station 113, UE112 Positioned at the fringe region of the cell of base station 114, UE111 is closer with UE112, each other adjacent to UE.UE111's and UE112 When transmission direction difference, for example, in synchronization, UE111 receives the downlink signal that base station 113 is sent, and UE112 is to base station 114 Uplink signal is sent, the uplink signal that UE112 is sent can receive downlink signal to UE111 and interfere.

In fig. 1 c, base station 123 is full duplex base station, that is, base station 123 can be in its overlay area simultaneously in identical money Two different users of random schedule on source.For example, base station 123 sends downlink information to UE121 with frequency f1, dispatch simultaneously UE122 sends uplink information to base station 123 with frequency f1, then the uplink signal that UE122 is sent may will affect under UE121 demodulation Row signal.

In Fig. 1 D, UE131 and UE133 are device-to-device (Device to Device, D2D) user.UE131 and When uplink band sends signal mutually, neighbouring UE132 sends uplink signal and can make to communication between UE131 and UE133 UE133 At interference.UE131 and UE133 can receive downlink signal to UE132 and interfere when band downlink sends signal mutually.

In embodiments of the present invention, user equipment (User Equipment, UE) can be referred to as terminal (Terminal), move Dynamic platform (Mobile Station, MS), mobile terminal (Mobile Terminal) etc., which can be through wireless access Net (Radio Access Network, RAN) is communicated with one or more core nets, for example, user equipment can be shifting Mobile phone (or be " cellular phone "), computer with mobile terminal etc., for example, user equipment can also be it is portable, Pocket, hand-held, built-in computer or vehicle-mounted mobile device, they exchange voice and/or number with wireless access network According to.

In embodiments of the present invention, base station can be base station (the Base Transceiver in GSM or CDMA Station, BTS), it is also possible to the base station (NodeB, NB) in WCDMA, can also be the evolved base station in LTE (Evolutional Node B, ENB or e-NodeB), the present invention does not limit.But for convenience of description, following embodiments will be with It is illustrated for base station and user equipment (UE).

Fig. 2 shows the schematic flow charts of the method 200 of measurement channel quality according to an embodiment of the present invention.Such as Fig. 2 Shown, this method 200 includes:

S210, the first UE receive the first reference signal that transmitting terminal is sent；

S220, the first UE according to first reference signal determine the transmitting terminal to the first UE channel the first kind believe Road quality；

S230, the first UE receive the second reference signal that the 2nd UE is sent, wherein the 2nd UE is the neighbour of the first UE Nearly UE；

S240, the first UE determine the transmitting terminal to the first UE according to first reference signal and second reference signal Channel the second class channel quality, wherein the second class channel quality indicate using the 2nd UE as transmission when interference source Hold the channel quality of the channel of the first UE；

S250, the first UE send the first kind channel quality and the second class channel quality to the transmitting terminal.

In embodiments of the present invention, the first UE of executing subject of this method 200 is the UE for needing to receive the data of transmitting terminal. For example, the first UE can be the UE131 in UE121 the or Fig. 1 D in UE111, Fig. 1 C in UE101, Figure 1B in Figure 1A, phase The transmitting terminal answered be base station 103, base station 113, base station 123 or UE133, corresponding 2nd UE be UE102, UE112, UE122 or UE132。

In embodiments of the present invention, first kind channel quality indicates that the reference signal sent according only to transmitting terminal (is expressed as First reference signal) determine channel quality；2nd UE (neighbouring UE) is used as interference source by the expression of the second class channel quality, according to The channel quality that the reference signal (being expressed as the second reference signal) that first reference signal and the 2nd UE are sent determines.2nd UE is The signal of the neighbouring UE of first UE, i.e. the 2nd UE send that the signal of the first UE can be received and interfere.

In embodiments of the present invention, the first UE in addition to the first reference signal sent according to transmitting terminal determine the transmitting terminal to Outside the first kind channel quality of the channel of first UE, also reception the 2nd UE send the second reference signal, and according to this first Reference signal and second reference signal determine the transmitting terminal to the first UE channel the second class channel quality, then, this First UE sends the first kind channel quality and the second class channel quality to the transmitting terminal.Number is received to the first UE in the 2nd UE In the case where according to interference, the second class channel quality is more acurrate.Transmitting terminal can be according to different situations, using first kind channel matter Amount or the second class channel quality, which determine, sends the MCS that data use, to improve transmission quality.

Therefore, the method for the measurement channel quality of the embodiment of the present invention is believed by the first reference sent according to transmitting terminal It number determines first kind channel quality, and determines that the second class is believed according to the second reference signal that the first reference signal and neighbouring UE are sent Road quality, available accurate channel quality, can be improved transmission quality.

In embodiments of the present invention, optionally, before the second reference signal that the first UE receives that the 2nd UE is sent, the party Method 200 further include:

First UE obtains the reference signal information of the 2nd UE；

The reference signal of 2nd UE can be detection reference signal (the Sounding Reference of the 2nd UE transmission Signal, SRS).It should be understood that the reference signal of the 2nd UE is also possible to other reference signals of the 2nd UE transmission, the present invention couple This is not limited.The reference signal information of 2nd UE include: reference signal starting resource position, comb teeth, cyclic shift, the period or Frequency parameter etc..First UE first obtains the reference signal information of the 2nd UE, further according to the reference signal information of the 2nd UE, receives the The second reference signal that two UE are sent.

In embodiments of the present invention, optionally, the first UE obtains the reference signal information of the 2nd UE, comprising:

Specifically, the first UE obtains the reference signal information of the 2nd UE from serving BS.Have in the first UE and the 2nd UE In the case where common serving BS, which can directly transmit the reference signal information of the 2nd UE to the first UE.Example Such as, in the scene shown in Fig. 1 C, base station 123 obtains the reference information signal of UE122, and by the reference signal information of UE122 It is sent to UE121；In the scene shown in Fig. 1 D, base station 134 obtains the reference information signal of UE132, and by the reference of UE132 Signal message is sent to UE131.

In the case where the first UE and the 2nd UE uncommon serving BS, the serving BS of the first UE can be from second The serving BS of UE receives the reference signal information of the 2nd UE, then the reference signal information of the 2nd UE is sent to the first UE.Example Such as, in the scene shown in Figure 1B, base station 123 receives the reference signal information of UE112 from base station 124, by the reference of UE112 Signal message is sent to UE111.

In scene shown in figure 1A, base station 103 and base station 104 can send signal, therefore, base station 104 to UE101 The reference signal information of UE102 directly can be sent to UE101, the reference signal information of UE102 can also be sent to base It stands 103, then the reference signal information of UE102 is sent to UE101 by base station 103.

In embodiments of the present invention, optionally, before the reference signal information for obtaining the 2nd UE, base station first determines second UE.In other words, base station determination may receive the UE that data interfere to the first UE.Optionally, in the first UE and possible In the case that 2nd UE has common serving BS, which can determine the 2nd UE；In the first UE and possible second In the case where UE uncommon serving BS, the serving BS of possible 2nd UE can determine the 2nd UE.

By taking scene shown in figure 1A as an example, base station 104 determines downlink transfer (the UE101 reception base station 103 to base station 103 The data of transmission) it may cause the UE of interference.If some UE in the cell of base station 104 may make the cell of base station 103 At interference, then it can determine whether that it should be in the cell of the fringe region of the cell of base station 104 and neighbor base station 103.Base station 104 can The adjacent area Reference Signal Received Power (Reference Signal Receiving Power, RSRP) reported according to UE determines should Whether UE can be interference UE.For example, the RSRP for the base station 103 that UE is measured is greater than the base station 104 that a certain thresholding or UE are measured The RSRP difference of RSRP and base station 103 is less than a certain threshold value, then determines that the UE is the interference source of the cell of base station 103, i.e., really It is set to the 2nd UE.

In embodiments of the present invention, optionally, the first UE is according to the reference signal information of the 2nd UE, receive this second Reference signal, comprising:

First UE is according to the reference signal information of the 2nd UE, in the sending instant of second reference signal, this Second reference signal is received on the corresponding subband of two reference signals.

In this case, the first UE determines that the transmitting terminal arrives according to first reference signal and second reference signal Second class channel quality of the channel of the first UE, comprising:

Specifically, the second reference signal that the 2nd UE is sent may be meeting frequency hopping, each moment only takes up lesser Bandwidth, thus the first UE need according to the 2nd UE frequency parameter the second reference signal sending instant on corresponding subband The second reference signal of the 2nd UE transmission is received, then using the 2nd UE as interference source, is determined in the sending instant in the subband On the second class channel quality.

For example, as shown in figure 3, at the moment 1, the first UE is according to the reference signal of the 2nd UE (UE1 and UE2) obtained in advance Information measures the second reference signal on corresponding subband (subband 1, subband 2, subband 3), and determines therefrom that this 3 subbands Second class channel quality；

At the moment 2, the second reference signal of the first UE measurement on subband 2, and determine therefrom that the second class channel of subband 2 Quality；

At the moment 3, the first UE measures the second reference signal on subband 3, subband 6, subband 7, and determines therefrom that this 3 Second class channel quality of subband.

Optionally, the first UE is when determining the second class channel quality, the first reference signal of used transmitting terminal transmission It can be current measurement reception, be also possible to store after other receptions.

Optionally, the subband width of the second class channel quality of the first UE measurement and report meets the bandwidth of the second reference signal Design.

By taking SRS as an example, due to the multiple that the transmitted bandwidth of SRS is 4 resource blocks (Resource Block, RB), therefore the The subband width of the second class channel quality of one UE measurement and report will meet the bandwidth Design (multiple of 4RB) of SRS.

In the present embodiment, base station notifies that the first UE is measured and two class channel qualities of report, the first UE are led to based on base station Know and receives the second reference signal and determine the second class channel quality.

It should be understood that base station can not also send above-mentioned notice to the first UE, in this case, the first UE can received After the reference signal information of the 2nd UE sent to base station, receives the second reference signal and determine the second class channel quality.

First UE determines the second class channel using the 2nd UE as interference source, according to the first reference signal and the second reference signal Quality.After obtaining first kind channel quality and the second class channel quality, the first UE is to the sender report first kind channel matter Amount and the second class channel quality.Optionally, the first UE can be reported or regular reporting after each measurement.It is multiple having In the case where the more a subbands of 2nd UE, it can be reported according to the sequence made an appointment.

Transmitting terminal updates corresponding letter after the first kind channel quality and the second class channel quality for receiving the first UE report Road quality.For example, transmitting terminal is joined according to the frequency hopping of the 2nd UE when the first UE reports the second class channel quality of multiple subbands Number, updates the channel quality of respective sub-bands.

Whether transmitting terminal sends data according to the 2nd UE, using first kind channel quality when sending data to the first UE Or second class channel quality determine to the first UE and send the MCS that uses of data.

For example, if the transmitting terminal to the first UE send data when, the 2nd UE send data, then the transmitting terminal according to The second class channel quality determines that MCS sends data to the first UE.If, should when the transmitting terminal sends data to the first UE 2nd UE does not send data, then the transmitting terminal determines that MCS sends data to the first UE according to the first kind channel quality.This Sample, in the case where the 2nd UE interferes the first UE to receive data, the first UE also can accurately receive the data of transmitting terminal.

The method of the measurement channel quality of the embodiment of the present invention, is determined by the first reference signal sent according to transmitting terminal First kind channel quality, and the second class channel matter is determined according to the second reference signal that the first reference signal and neighbouring UE are sent Amount, available accurate channel quality make transmitting terminal send data according to accurate channel quality, so as to improve transmission Quality.

The method that measurement channel quality according to an embodiment of the present invention is described in detail from the angle of the first UE above, below The method for describing measurement channel quality according to an embodiment of the present invention from the angle of transmitting terminal.

Fig. 4 shows the schematic flow chart of the method 400 of measurement channel quality according to an embodiment of the present invention.Such as Fig. 4 Shown, this method 400 includes:

S410, transmitting terminal send the first reference signal to the first UE；

S420, the transmitting terminal receive the first UE transmission the transmitting terminal to the first UE channel first kind channel matter Amount and the second class channel quality, wherein the first kind channel quality determines by the first UE according to first reference signal, this Two class channel qualities are determined that second reference signal is by by the first UE according to first reference signal and the second reference signal Two UE are sent, and the 2nd UE is the neighbouring UE of the first UE, which indicates using the 2nd UE as interference source When the transmitting terminal to the first UE channel channel quality；

S430, the transmitting terminal send number to the first UE according to the first kind channel quality or the second class channel quality According to.

In embodiments of the present invention, the executing subject transmitting terminal of this method 400 is the equipment for sending data to the first UE.Example Such as, the first UE can be the UE131 in UE121 the or Fig. 1 D in UE111, Fig. 1 C in UE101, Figure 1B in Figure 1A, accordingly Transmitting terminal be base station 103, base station 113, base station 123 or UE133, corresponding 2nd UE be UE102, UE112, UE122 or UE132。

In embodiments of the present invention, transmitting terminal receives the first kind channel quality and the second class channel matter that the first UE is sent Amount.First kind channel quality is determined that the second class channel quality is by by the first UE according to the first reference signal that transmitting terminal is sent One UE is determined according to the second reference signal that the first reference signal and the 2nd UE are sent.Transmitting terminal is sending data to the first UE When, data can be sent to the first UE according to first kind channel quality or the second class channel quality according to different situations.

Therefore, the method for the measurement channel quality of the embodiment of the present invention, by reception the first UE transmission according to transmitting terminal The first kind channel quality that determines of the first reference signal and according to the first reference signal and neighbouring UE send second with reference to believing Number the second determining class channel quality can send data to the first UE according to accurate channel quality, pass so as to improve Transmission quality.

In embodiments of the present invention, optionally, in the case where the transmitting terminal is the serving BS of the first UE, this method 400 further include:

Transmitting terminal can be the serving BS (such as scene shown in Figure 1A, Figure 1B and Fig. 1 C) of the first UE, or The UE (such as scene shown in Fig. 1 D) of D2D communication is carried out with the first UE.

In the case where transmitting terminal is the serving BS of the first UE, transmitting terminal sends the reference signal of the 2nd UE to the first UE Information；In the case where transmitting terminal is not the serving BS of the first UE, the first UE obtains the reference of the 2nd UE from its serving BS Signal message.

The reference signal of 2nd UE can be the SRS of the 2nd UE transmission.It should be understood that the reference signal of the 2nd UE is also possible to Other reference signals that 2nd UE is sent, the present invention do not limit this.The reference signal information of 2nd UE includes: reference signal Starting resource position, comb teeth, cyclic shift, period or frequency parameter etc..

In the case where transmitting terminal is the serving BS of the first UE, transmitting terminal (base station) notifies the first UE to measure and report two Class channel quality；In the case where transmitting terminal is not the serving BS of the first UE, the serving BS of the first UE notifies the first UE to survey Two class channel qualities of amount and report.First UE receives the second reference signal based on the notice and determines the second class channel quality.

First UE determines first kind channel quality according to the first reference signal.First UE is using the 2nd UE as interference source, root The second class channel quality is determined according to the first reference signal and the second reference signal.Obtaining first kind channel quality and the second class letter After road quality, the first UE is to the sender report first kind channel quality and the second class channel quality.Transmitting terminal receives After first kind channel quality and the second class channel quality that one UE is sent, according to first kind channel quality or the second class channel quality Data are sent to the first UE.

In embodiments of the present invention, optionally, in the transmitting terminal according to the first kind channel quality or the second class channel Before quality sends data to the first UE, this method 400 further include:

The transmitting terminal obtains the scheduling information of the 2nd UE；

Specifically, the first kind channel quality and second that transmitting terminal is reported according to the scheduling information of the 2nd UE and the first UE Class channel quality sends data to the first UE.For example, if the 2nd UE is sent when the transmitting terminal sends data to the first UE Data, then the transmitting terminal determines that modulation and coding strategy send data to the first UE according to the second class channel quality.If When the transmitting terminal sends data to the first UE, the 2nd UE does not send data, then the transmitting terminal is according to the first kind channel matter Amount determines that modulation and coding strategy send data to the first UE.That is, transmitting terminal to the first UE send data when, if 2nd UE is sending data, then is determined according to the second class channel quality to the first UE and send the MCS that data use, and using should MCS sends data to the first UE；If the 2nd UE does not send data, is determined according to first kind channel quality to the first UE and sent The MCS that data use, and data are sent to the first UE using the MCS.

It in embodiments of the present invention, should if transmitting terminal is the serving BS (such as scene shown in Fig. 1 C) of the 2nd UE Transmitting terminal can directly acquire the scheduling information of the 2nd UE.If the transmitting terminal be not the 2nd UE serving BS (such as Figure 1A, Scene shown in Figure 1B and Fig. 1 D), then the tune for the 2nd UE that the serving BS that the transmitting terminal can receive the 2nd UE is sent Spend information, that is to say, that the transmitting terminal can obtain the scheduling information of the 2nd UE from the serving BS of the 2nd UE.

It should be understood that in embodiments of the present invention, interaction and correlation properties, function between each equipment of the first side UE description Deng to send the description of end side it is corresponding, for sake of simplicity, details are not described herein.

The method of the measurement channel quality of the embodiment of the present invention, by reception the first UE transmission according to the first of transmitting terminal The first kind channel quality and determined according to the second reference signal that the first reference signal and neighbouring UE are sent that reference signal determines The second class channel quality, can according to accurate channel quality to the first UE send data, so as to improve transmission quality.

It should be understood that in various embodiments of the present invention, magnitude of the sequence numbers of the above procedures are not meant to execute suitable Sequence it is successive, the execution of each process sequence should be determined by its function and internal logic, the implementation without coping with the embodiment of the present invention Process constitutes any restriction.

The method of above-detailed measurement channel quality according to an embodiment of the present invention, is described below according to this hair The UE and transmitting terminal of bright embodiment.

Fig. 5 shows the schematic block diagram of UE500 according to an embodiment of the present invention.As shown in figure 5, the UE500 includes:

Receiving module 510, for receiving the first reference signal of transmitting terminal transmission, and the second of reception the 2nd UE transmission Reference signal, wherein the 2nd UE is the neighbouring UE of the UE；

Determining module 520, for according to first reference signal determine the transmitting terminal to the UE channel the first kind believe Road quality, and according to first reference signal and second reference signal determine the transmitting terminal to the UE channel the second class Channel quality, wherein the second class channel quality is indicated using the 2nd UE as transmitting terminal when interference source to the channel of the UE Channel quality；

Sending module 530, for sending the first kind channel quality and the second class channel quality to the transmitting terminal.

The UE of the embodiment of the present invention determines first kind channel quality by the first reference signal sent according to transmitting terminal, And the second class channel quality is determined according to the second reference signal that the first reference signal and neighbouring UE are sent, it is available accurate Channel quality can be improved transmission quality.

In embodiments of the present invention, optionally, the UE500 further include:

The receiving module 510 is specifically used for the reference signal information according to the 2nd UE, receives second reference signal.

In embodiments of the present invention, optionally, which is specifically used for being believed according to the reference signal of the 2nd UE Breath, in the sending instant of second reference signal, receives second reference signal on the corresponding subband of the second reference signal；

The determining module 520 is specifically used for determining that the transmitting terminal arrives according to first reference signal and second reference signal The the second class channel quality of the channel of first UE on the sending instant subband.

In embodiments of the present invention, optionally, which is also used to receive the ginseng of the 2nd UE of base station transmission Examine signal message；

The acquisition module is specifically used for obtaining the reference signal information of received 2nd UE of the receiving module 510.

In embodiments of the present invention, optionally, which is also used to receive the two class channel of report of base station transmission The notice of quality, the notice are used to indicate the UE and send the first kind channel quality and the second class channel matter to the transmitting terminal Amount.

UE500 according to an embodiment of the present invention can correspond in the method for measurement channel quality according to an embodiment of the present invention The first UE, and above and other operation and/or function of the modules in UE500 is respectively for aforementioned each method Corresponding process, for sake of simplicity, details are not described herein.

Fig. 6 shows the schematic block diagram of transmitting terminal 600 according to an embodiment of the present invention.As shown in fig. 6, the transmitting terminal 600 include:

Sending module 610 sends the first reference signal with to the first user equipment (UE)；

Receiving module 620, for receive the first UE transmission the transmitting terminal to the first UE channel the first kind believe Road quality and the second class channel quality, wherein the first kind channel quality determines by the first UE according to first reference signal, The second class channel quality determines by the first UE according to first reference signal and the second reference signal, second reference signal It is sent by the 2nd UE, the 2nd UE is the neighbouring UE of the first UE, which indicates using the 2nd UE as dry When disturbing source the transmitting terminal to the first UE channel channel quality；

The sending module 610 is also used to be sent out according to the first kind channel quality or the second class channel quality to the first UE Send data.

The transmitting terminal of the embodiment of the present invention, by receiving determining according to the first reference signal of transmitting terminal for the first UE transmission First kind channel quality and the second class channel for being determined according to the second reference signal that the first reference signal and neighbouring UE are sent Quality can send data to the first UE according to accurate channel quality, so as to improve transmission quality.

In embodiments of the present invention, optionally, the transmitting terminal 600 further include:

Module is obtained, for obtaining the scheduling information of the 2nd UE；

The sending module 610 is specifically used for the scheduling information according to the 2nd UE, selects according to the first kind channel quality Or the second class channel quality sends data to the first UE.

In embodiments of the present invention, optionally, which is specifically used for,

In embodiments of the present invention, optionally, the serving BS which is also used to receive the 2nd UE is sent The 2nd UE scheduling information；

The acquisition module is specifically used for obtaining the scheduling information of received 2nd UE of the receiving module 620.

In embodiments of the present invention, optionally, which is the serving BS of the first UE；

The sending module 610 is also used to send the reference signal information of the 2nd UE, the ginseng of the 2nd UE to the first UE It examines signal message and second reference signal is received according to the reference signal information of the 2nd UE for the first UE.

The sending module 610 is also used to send the notice of two class channel qualities of report to the first UE, and the notice is for referring to Show that the first UE sends the first kind channel quality and the second class channel quality to the transmitting terminal.

Transmitting terminal 600 according to an embodiment of the present invention can correspond to the side of measurement channel quality according to an embodiment of the present invention Transmitting terminal in method, and above and other operation and/or function of the modules in transmitting terminal 600 is respectively in order to aforementioned each The corresponding process of a method, for sake of simplicity, details are not described herein.

Fig. 7 shows the structure of the UE of another embodiment of the present invention offer, including at least one processor 702 (such as CPU), at least one network interface 705 or other communication interfaces, memory 706 and at least one communication bus 703, are used for Realize the connection communication between these components.Processor 702 is used to execute the executable module stored in memory 706, such as Computer program.Memory 706 may include high-speed random access memory (RAM:Random Access Memory), can also It can further include non-labile memory (non-volatile memory), for example, at least a magnetic disk storage.By at least One network interface 705 (can be wired or wireless) realizes the communication connection between at least one other network element.

In some embodiments, memory 706 stores program 7061, and processor 702 executes program 7061, for holding The following operation of row:

The first reference signal that transmitting terminal is sent is received by network interface；

According to first reference signal determine the transmitting terminal to the UE channel first kind channel quality；

The second reference signal that the 2nd UE is sent is received by network interface, wherein the 2nd UE is the neighbouring UE of the UE；

Believed according to the second class of channel that first reference signal and second reference signal determine the transmitting terminal to the UE Road quality, wherein the second class channel quality is indicated using the 2nd UE as the channel of transmitting terminal when interference source to the UE Channel quality；

The first kind channel quality and the second class channel quality are sent to the transmitting terminal by network interface.

Optionally, which is also used to obtain the reference signal information of the 2nd UE；

The processor is specifically used for the reference signal information according to the 2nd UE, receives second reference signal.

Optionally, which is specifically used for the reference signal information according to the 2nd UE, in second reference signal Sending instant receives second reference signal on the corresponding subband of the second reference signal；

According to first reference signal and second reference signal determine the transmitting terminal to the UE channel in the transmission Carve the second class channel quality on the subband.

Optionally, the reference signal which is specifically used for receiving the 2nd UE that base station is sent by network interface is believed Breath.

Optionally, which is also used to receive the logical of the two class channel quality of report that base station is sent by network interface Know, which is used to indicate the UE and sends the first kind channel quality and the second class channel quality to the transmitting terminal.

It can be seen that the embodiment of the present invention by sending out according to transmitting terminal from above technical scheme provided in an embodiment of the present invention The first reference signal sent determines first kind channel quality, and is believed according to the second reference that the first reference signal and neighbouring UE are sent Number determine the second class channel quality, available accurate channel quality can be improved transmission quality.

Fig. 8 shows the structure of the transmitting terminal of another embodiment of the present invention offer, including at least one processor 802 (such as CPU), at least one network interface 805 or other communication interfaces, memory 806 and at least one communication bus 803, for realizing the connection communication between these components.Processor 802 is for executing the executable mould stored in memory 806 Block, such as computer program.Memory 806 may include high-speed random access memory (RAM:Random Access Memory), it is also possible to further include non-labile memory (non-volatile memory), a for example, at least disk is deposited Reservoir.It is realized between at least one other network element by least one network interface 805 (can be wired or wireless) Communication connection.

In some embodiments, memory 806 stores program 8061, and processor 802 executes program 8061, for holding The following operation of row:

The first reference signal is sent to the first UE by network interface；

By network interface receive the first UE transmission the transmitting terminal to the first UE channel first kind channel matter Amount and the second class channel quality, wherein the first kind channel quality determines by the first UE according to first reference signal, this Two class channel qualities are determined that second reference signal is by by the first UE according to first reference signal and the second reference signal Two UE are sent, and the 2nd UE is the neighbouring UE of the first UE, which indicates using the 2nd UE as interference source When the transmitting terminal to the first UE channel channel quality；

Data are sent to the first UE by network interface according to the first kind channel quality or the second class channel quality.

Optionally, which is also used to obtain the scheduling information of the 2nd UE；

The processor is specifically used for according to the scheduling information of the 2nd UE, selection according to the first kind channel quality or this Two class channel qualities send data to the first UE.

Optionally, which is specifically used for, if the 2nd UE is sent when the transmitting terminal sends data to the first UE Data then determine that modulation and coding strategy send data to the first UE according to the second class channel quality；Alternatively,

If the 2nd UE does not send data, then is believed according to the first kind when the transmitting terminal sends data to the first UE Road quality determines that modulation and coding strategy send data to the first UE.

Optionally, which is specifically used for receiving the scheduling letter of the 2nd UE of the serving BS transmission of the 2nd UE Breath.

Optionally, which is the serving BS of the first UE；

The processor is also used to send the reference signal information of the 2nd UE to the first UE by network interface, this second The reference signal information of UE receives second reference signal according to the reference signal information of the 2nd UE for the first UE.

Optionally, which is the serving BS of the first UE；

The processor is also used to send the notice of two class channel qualities of report, the notice to the first UE by network interface It is used to indicate the first UE and sends the first kind channel quality and the second class channel quality to the transmitting terminal.

It can be seen that the embodiment of the present invention by receiving the first UE hair from above technical scheme provided in an embodiment of the present invention That send sends out according to the first kind channel quality of the first reference signal of transmitting terminal determination and according to the first reference signal and neighbouring UE The second class channel quality that the second reference signal sent determines can send data to the first UE according to accurate channel quality, So as to improve transmission quality.

It should be understood that in embodiments of the present invention, term "and/or" is only a kind of incidence relation for describing affiliated partner, Indicate may exist three kinds of relationships.For example, A and/or B, can indicate: individualism A exists simultaneously A and B, individualism B this Three kinds of situations.In addition, character "/" herein, typicallys represent the relationship that forward-backward correlation object is a kind of "or".

Those of ordinary skill in the art may be aware that list described in conjunction with the examples disclosed in the embodiments of the present disclosure Member and algorithm steps, can be realized with electronic hardware, computer software, or a combination of the two, in order to clearly demonstrate hardware With the interchangeability of software, each exemplary composition and step are generally described according to function in the above description.This A little functions are implemented in hardware or software actually, the specific application and design constraint depending on technical solution.Specially Industry technical staff can use different methods to achieve the described function each specific application, but this realization is not It is considered as beyond the scope of this invention.

It is apparent to those skilled in the art that for convenience of description and succinctly, foregoing description is The specific work process of system, device and unit, can refer to corresponding processes in the foregoing method embodiment, details are not described herein.

In several embodiments provided herein, it should be understood that disclosed systems, devices and methods, it can be with It realizes by another way.For example, the apparatus embodiments described above are merely exemplary, for example, the unit It divides, only a kind of logical function partition, there may be another division manner in actual implementation, such as multiple units or components It can be combined or can be integrated into another system, or some features can be ignored or not executed.In addition, shown or beg for Opinion mutual coupling, direct-coupling or communication connection can be through some interfaces, the INDIRECT COUPLING of device or unit Or communication connection, it is also possible to electricity, mechanical or other form connections.

The unit as illustrated by the separation member may or may not be physically separated, aobvious as unit The component shown may or may not be physical unit, it can and it is in one place, or may be distributed over multiple In network unit.Some or all of unit therein can be selected to realize the embodiment of the present invention according to the actual needs Purpose.

It, can also be in addition, the functional units in various embodiments of the present invention may be integrated into one processing unit It is that each unit physically exists alone, is also possible to two or more units and is integrated in one unit.It is above-mentioned integrated Unit both can take the form of hardware realization, can also realize in the form of software functional units.

If the integrated unit is realized in the form of SFU software functional unit and sells or use as independent product When, it can store in a computer readable storage medium.Based on this understanding, technical solution of the present invention is substantially The all or part of the part that contributes to existing technology or the technical solution can be in the form of software products in other words It embodies, which is stored in a storage medium, including some instructions are used so that a computer Equipment (can be personal computer, server or the network equipment etc.) executes the complete of each embodiment the method for the present invention Portion or part steps.And storage medium above-mentioned includes: USB flash disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), magnetic or disk etc. are various can store journey The medium of sequence code.

The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any Those familiar with the art in the technical scope disclosed by the present invention, can readily occur in various equivalent modifications or replace It changes, these modifications or substitutions should be covered by the protection scope of the present invention.Therefore, protection scope of the present invention should be with right It is required that protection scope subject to.

Claims

1. a kind of method for measuring channel quality characterized by comprising

First user equipment (UE) receives the first reference signal that transmitting terminal is sent；

First UE determines that the first kind of channel of the transmitting terminal to the first UE is believed according to first reference signal Road quality；

First UE receives the second reference signal that the 2nd UE is sent, wherein the 2nd UE is the neighbouring of the first UE UE；

First UE determines the transmitting terminal to described first according to first reference signal and second reference signal Second class channel quality of the channel of UE, wherein the second class channel quality is indicated using the 2nd UE as when interference source The transmitting terminal to the first UE channel channel quality；

2. the method according to claim 1, wherein receiving the second reference that the 2nd UE is sent in the first UE Before signal, the method also includes:

First UE obtains the reference signal information of the 2nd UE；

3. according to the method described in claim 2, it is characterized in that, the first UE believes according to the reference signal of the 2nd UE Breath receives second reference signal, comprising:

First UE is according to the reference signal information of the 2nd UE, in the sending instant of second reference signal, in institute It states and receives second reference signal on the corresponding subband of the second reference signal；

First UE determines the transmitting terminal to described first according to first reference signal and second reference signal Second class channel quality of the channel of UE, comprising:

First UE determines the transmitting terminal to described first according to first reference signal and second reference signal The second class channel quality of the channel of UE on the subband described in the sending instant.

4. according to the method in claim 2 or 3, which is characterized in that the first UE obtains the reference letter of the 2nd UE Number information, comprising:

5. method according to claim 1 to 4, which is characterized in that receive the 2nd UE hair in the first UE Before the second reference signal sent, the method also includes:

First UE receives the notice for the two class channel quality of report that base station is sent, and the notice is used to indicate the first UE The first kind channel quality and the second class channel quality are sent to the transmitting terminal.

6. a kind of method for measuring channel quality characterized by comprising

Transmitting terminal sends the first reference signal to the first user equipment (UE)；

The transmitting terminal receives the first kind channel matter of channel of the transmitting terminal of the first UE transmission to the first UE Amount and the second class channel quality, wherein the first kind channel quality is true according to first reference signal by the first UE Fixed, the second class channel quality is determined by the first UE according to first reference signal and the second reference signal, described Second reference signal is sent by the 2nd UE, and the 2nd UE is the neighbouring UE of the first UE, the second class channel quality table Show the channel quality of the channel using the 2nd UE as transmitting terminal described when interference source to the first UE；

7. according to the method described in claim 6, it is characterized in that, the transmitting terminal according to the first kind channel quality or Before the second class channel quality sends data to the first UE, the method also includes:

The transmitting terminal obtains the scheduling information of the 2nd UE；

The transmitting terminal sends data to the first UE according to the first kind channel quality or the second class channel quality, Include:

The transmitting terminal is selected according to the scheduling information of the 2nd UE according to the first kind channel quality or second class Channel quality sends data to the first UE.

8. the method according to the description of claim 7 is characterized in that scheduling information of the transmitting terminal according to the 2nd UE, Selection sends data to the first UE according to the first kind channel quality or the second class channel quality, comprising:

If the 2nd UE sends data when the transmitting terminal sends data to the first UE, then the transmitting terminal according to The second class channel quality determines that modulation and coding strategy send data to the first UE；Alternatively,

If the 2nd UE does not send data, then the transmitting terminal root when the transmitting terminal sends data to the first UE Determine that modulation and coding strategy send data to the first UE according to the first kind channel quality.

9. method according to claim 7 or 8, which is characterized in that the transmitting terminal obtains the scheduling letter of the 2nd UE Breath, comprising:

10. method according to any one of claims 6 to 9, which is characterized in that the transmitting terminal is the first UE's Serving BS；

The method also includes:

The transmitting terminal sends the reference signal information of the 2nd UE, the reference signal letter of the 2nd UE to the first UE Breath receives second reference signal according to the reference signal information of the 2nd UE for the first UE.

11. the method according to any one of claim 6 to 10, which is characterized in that the transmitting terminal is the first UE Serving BS；

The method also includes:

The transmitting terminal sends the notice of two class channel qualities of report to the first UE, and the notice is used to indicate described first UE sends the first kind channel quality and the second class channel quality to the transmitting terminal.

12. a kind of user equipment (UE) characterized by comprising

Receiving module, for receiving the first reference signal of transmitting terminal transmission, and the second reference letter that the 2nd UE of reception is sent Number, wherein the 2nd UE is the neighbouring UE of the UE；

Determining module, for determining the first kind channel of channel of the transmitting terminal to the UE according to first reference signal Quality, and according to first reference signal and second reference signal determine the transmitting terminal to the UE channel Second class channel quality, wherein the second class channel quality is indicated using the 2nd UE as transmitting terminal described when interference source To the channel quality of the channel of the UE；

13. UE according to claim 12, which is characterized in that the UE further include:

14. UE according to claim 13, which is characterized in that the receiving module is specifically used for according to the 2nd UE's Reference signal information receives on the corresponding subband of second reference signal in the sending instant of second reference signal Second reference signal；

The determining module is specifically used for determining the transmitting terminal according to first reference signal and second reference signal To the second class channel quality of the channel on the subband described in the sending instant of the UE.

15. UE described in 3 or 14 according to claim 1, which is characterized in that the receiving module is also used to receive base station transmission The reference signal information of 2nd UE；

The module that obtains is specifically used for obtaining the reference signal information of received 2nd UE of receiving module.

16. UE described in any one of 2 to 15 according to claim 1, which is characterized in that the receiving module is also used to receive base Stand send two class channel quality of report notice, it is described notice be used to indicate the UE to the transmitting terminal send described first Class channel quality and the second class channel quality.

17. a kind of transmitting terminal characterized by comprising

Receiving module, for receiving the first kind channel of channel of the transmitting terminal of the first UE transmission to the first UE Quality and the second class channel quality, wherein the first kind channel quality is by the first UE according to first reference signal It determines, the second class channel quality is determined by the first UE according to first reference signal and the second reference signal, institute It states the second reference signal to be sent by the 2nd UE, the 2nd UE is the neighbouring UE of the first UE, the second class channel quality Indicate the channel quality of the channel using the 2nd UE as transmitting terminal described when interference source to the first UE；

The sending module is also used to according to the first kind channel quality or the second class channel quality to the first UE Send data.

18. transmitting terminal according to claim 17, which is characterized in that the transmitting terminal further include:

Module is obtained, for obtaining the scheduling information of the 2nd UE；

The sending module is specifically used for according to the scheduling information of the 2nd UE, selection according to the first kind channel quality or The second class channel quality sends data to the first UE.

19. transmitting terminal according to claim 18, which is characterized in that the sending module is specifically used for,

If the 2nd UE sends data, then true according to the second class channel quality when sending data to the first UE System of setting the tone and coding strategy send data to the first UE；Alternatively,

If the 2nd UE does not send data, then according to the first kind channel quality when sending data to the first UE Determine that modulation and coding strategy send data to the first UE.

20. transmitting terminal described in 8 or 19 according to claim 1, which is characterized in that the receiving module is also used to receive described The scheduling information for the 2nd UE that the serving BS of two UE is sent；

The module that obtains is specifically used for obtaining the scheduling information of received 2nd UE of receiving module.

21. transmitting terminal described in any one of 7 to 20 according to claim 1, which is characterized in that the transmitting terminal is described first The serving BS of UE；

The sending module is also used to send the reference signal information of the 2nd UE, the ginseng of the 2nd UE to the first UE It examines signal message and second reference signal is received according to the reference signal information of the 2nd UE for the first UE.

22. transmitting terminal described in any one of 7 to 21 according to claim 1, which is characterized in that the transmitting terminal is described first The serving BS of UE；

The sending module is also used to send the notice of two class channel qualities of report to the first UE, and the notice is used to indicate First UE sends the first kind channel quality and the second class channel quality to the transmitting terminal.