CN104038308A

CN104038308A - Channel quality indicator adjusting method and base station

Info

Publication number: CN104038308A
Application number: CN201310070452.2A
Authority: CN
Inventors: 张盼; 李铮铮; 李海朝; 高秀娟
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2013-03-06
Filing date: 2013-03-06
Publication date: 2014-09-10
Anticipated expiration: 2033-03-06
Also published as: WO2014135091A1; CN104038308B

Abstract

The invention discloses a channel quality indicator adjusting method and a base station, which belong to the technical field of communication. The method comprises the following steps: determining downlink scheduling attributes of a user; performing downlink scheduling on the user and receiving uplink information fed back by the user, wherein the uplink information includes a channel quality indicator CQI and a downlink data packet transmission acknowledgement indicator; getting the packet error rate corresponding to each scheduling attribute according to the scheduling attribute of the user and the downlink data packet transmission acknowledgement indicator; and getting the CQI adjustment value according to each scheduling attribute according to the packet error rate, the received CQI and the historical CQI value of the scheduling attribute.

Description

Adjust method and the base station of channel quality indication

Technical field

The present invention relates to communication technical field, particularly a kind of method and base station of adjusting channel quality indication.

Background technology

In existing communication system, base station is during to user's transmitted signal, need to select suitable modulation coding mode for user according to down channel quality.In concrete implementation, user is by reporting CQI(ChannelQuality Indicator, channel quality indication) carry out the down channel quality measured for base station indicating user; During due to user equipment to report CQI, there is a fixed response time, and CQI measure based on public guide frequency and the data channel of base station actual schedule there is certain otherness, base station side need to be carried out certain adjustment to the CQI reporting, to mate actual down channel; Base station is mapped as corresponding MCS(Modulation and Coding Scheme, modulation coding mode after the CQI of user feedback is adjusted); Base station adopts this MCS to send downlink data packet to user.When base station selected MCS mates with down channel, downlink channel transmission efficiency is maximum.

In existing alone family scheduling, base station is independent dispatched users on each TTI, and on each running time-frequency resource, only dispatch a user, its CQI adjustment scheme is: this user's Packet Error Ratio is added up in base station, when Packet Error Ratio is greater than when threshold value is set, illustrate that the current Channel Modulation coded system of choosing is higher than actual channel quality, need suitably to reduce current CQI value; When Packet Error Ratio is less than when threshold value is set, illustrate that the current Channel Modulation coded system of choosing is lower than actual channel quality, now need suitably to increase current CQI value.When down channel quality is stablized, base station is carried out the adjustment of a period of time according to the method described above, makes the Channel Modulation coded system of base station scheduling be matched with gradually down channel quality.The statistical method of Packet Error Ratio is: base station is calculated the number of data packets of error of transmission in a period of time and always transmitted number-of-packet object ratio.Wherein whether packet transmits correctly, is to receive the ACK(Acknowledgement that user feeds back on sub-frame of uplink, positive acknowledgement by base station) or NACK(Negative Acknowledgement, Negative Acknowledgement) indication acquisition.At LTE(Long Term Evolution, long evolving system)-TDD(Time Division Duplexing, time division duplex) in, when the ACK of a plurality of descending sub frames or NACK feed back on same sub-frame of uplink, can adopt TDD ACK or NACK bundling(binding) or TDD ACK or NACK multiplexing(multiplexing) feedback system.The basic operation process of TDD ACK or NACK bundling feedback system is: user carries out logical “and” operation to ACK or the NACK of one or more descending sub frames in TDD ACK or NACK bundling feedback binding set in each code word, at corresponding sub-frame of uplink, user, for each code word feedback 1Bit information, is used for representing all correct or whole errors of transmission of transmission of one or more descending sub frames in binding set.

But the development along with the communication technology, there is multi-user technology, can support MU(Multi-UserMIMO, multi-user)-MIMO(Multiple Input Multiple Output, multiple-input and multiple-output) and MU-BF(Beam Forming, beam shaping) transmission technology, it can carry out a plurality of users' transfer of data on identical running time-frequency resource simultaneously.While matching the differences such as the number of plies and pairing object due to user in a plurality of users' transfer of data, subscriber signal power and the difference that is disturbed, so user's down channel quality can fluctuate thereupon.In the situation that down channel quality fluctuates, original in the just existence inefficacy to a certain extent in multi-subscriber dispatching of the CQI method of adjustment in the scheduling of alone family, can not guarantee the accuracy that in multi-subscriber dispatching, CQI adjusts.

Summary of the invention

In order to improve the accuracy that under multi-user technology, CQI adjusts, in the embodiment of the present invention, provide a kind of method and base station of adjusting channel quality indication.Described technical scheme is as follows:

First aspect, a kind of method of adjusting channel quality indication is provided, described method comprises: the descending scheduling attribute of determining user, described user is carried out to descending scheduling, and receive the uplink information of described user feedback, wherein, described uplink information comprises: channel quality indicator (CQI) and the indication of downlink data packet acknowledge; According to every kind of scheduling attribute of described user and the indication of described downlink data packet acknowledge, obtain described every kind of Packet Error Ratio corresponding to scheduling attribute; According to described Packet Error Ratio, described in the historical CQI value of the CQI that receives and described every kind of scheduling attribute, obtain described every kind and dispatch CQI adjusted value corresponding to attribute.

In the possible execution mode of the first of first aspect, described definite user's descending scheduling attribute, comprising:

When in the set of described downlink data packet acknowledge indication bundled feedback and described binding, descending sub frame number is greater than 1, each descending scheduling subframe in the set of described binding is all set to the scheduling attribute of specified type, makes to only include in the information of described reporting of user the uplink information corresponding to scheduling attribute of described specified type.

Described downlink data packet acknowledge indication comprises: positive acknowledgement ACK or Negative Acknowledgement NACK, described NACK is used to indicate descending sub frame in the set of described binding, and all transmission is correct, the descending sub frame that described ACK is used to indicate in the set of described binding all transmits correctly

Described according to every kind of scheduling attribute of described user and the indication of described downlink data packet acknowledge, obtain described every kind of Packet Error Ratio corresponding to scheduling attribute, comprising:

Described ACK or NACK are added up, obtain the Packet Error Ratio corresponding to scheduling attribute of described specified type.

In the possible execution mode of the second of first aspect, described definite user's descending scheduling attribute, comprising:

When in the set of described downlink data packet acknowledge indication bundled feedback and described binding, descending sub frame number is greater than 1, the scheduling attribute of each the descending scheduling subframe in the set of described binding is set, wherein, the scheduling attribute of described each descending scheduling subframe is different.

In the third possibility execution mode of the possible execution mode of the second of first aspect, described downlink data packet acknowledge indication comprises: ACK or NACK, described NACK is used to indicate descending sub frame in the set of described binding, and all transmission is correct, the descending sub frame that described ACK is used to indicate in the set of described binding all transmits correctly

According to preset rules, described every kind of NACK corresponding to scheduling attribute is carried out to different countings and process, to obtain described every kind of Packet Error Ratio corresponding to scheduling attribute.

In the 4th kind of possibility execution mode of the possible execution mode of the second of first aspect, described downlink data packet acknowledge indication comprises: ACK or NACK or the 3rd indication information, described the 3rd indication information is used to indicate all errors of transmission of descending sub frame in the set of described binding, described NACK is used to indicate the equal error of transmission of descending sub frame in the set of described binding, the descending sub frame that described ACK is used to indicate in the set of described binding all transmits correctly

When described uplink information comprises described NACK, described user's NACK corresponding to difference scheduling attribute carried out to identical counting and process, obtain described every kind of Packet Error Ratio corresponding to scheduling attribute;

When described uplink information comprises described the 3rd indication information, according to preset rules, NACK corresponding to described different scheduling attribute carried out to different countings and process, obtain described every kind of Packet Error Ratio corresponding to scheduling attribute.

In conjunction with first aspect or at the possible execution mode of the first of first aspect or in the possible execution mode of the second of first aspect or the third possibility execution mode or the 4th kind of possible execution mode at the possible execution mode of the second of first aspect at the possible execution mode of the second of first aspect, described according to described Packet Error Ratio, described in the historical CQI value of the CQI that receives and described every kind of scheduling attribute, obtain described every kind of CQI adjusted value corresponding to scheduling attribute, comprising:

According to described Packet Error Ratio, the described CQI receiving is adjusted, obtain every kind of current C QI value corresponding to scheduling attribute;

Current C QI value corresponding to described every kind of scheduling attribute and the historical CQI value of every kind of scheduling attribute are carried out to filtering processing, obtain the adjusted value of described CQI.

The beneficial effect that the technical scheme that the embodiment of the present invention provides is brought is: the descending scheduling attribute of determining user, user is carried out to descending scheduling, and receive the uplink information of described user feedback, wherein, described uplink information comprises: channel quality indicator (CQI) and the indication of downlink data packet acknowledge; According to every kind of scheduling attribute of described user and the indication of described downlink data packet acknowledge, obtain described every kind of Packet Error Ratio corresponding to scheduling attribute; According to described Packet Error Ratio, described in the historical CQI value of the CQI that receives and described every kind of scheduling attribute, obtain described every kind and dispatch CQI adjusted value corresponding to attribute.Thereby the CQI realizing for different user scheduling attribute adjusts, and improves the accuracy that under multi-user technology, CQI adjusts.

Second aspect, a kind of method of adjusting channel quality indication is provided, described method comprises: the descending scheduling attribute of determining user, described user is carried out to descending scheduling, and receive the uplink information of described user feedback, wherein, described uplink information comprises: channel quality indicator (CQI) and positive acknowledgement ACK or Negative Acknowledgement NACK; The described ACK receiving or NACK are added up to the Packet Error Ratio of the scheduling attribute that obtains the first specified type; According to described Packet Error Ratio, described in the historical CQI value of scheduling attribute of the CQI that receives and described the first specified type, obtain the CQI adjusted value corresponding to scheduling attribute of described the first specified type; According to CQI adjusted value corresponding to the scheduling attribute of described the first specified type, the scheduling attribute of described the first specified type and the scheduling attribute of the second specified type, obtain the CQI adjusted value corresponding to scheduling attribute of described the second specified type.

In the possible execution mode of the first of second aspect, described according to described Packet Error Ratio, described in the historical CQI value of scheduling attribute of the CQI that receives and described the first specified type, CQI adjusted value corresponding to scheduling attribute that obtains described the first specified type, comprising:

According to described Packet Error Ratio, the described CQI receiving is adjusted, obtain the current C QI value of the scheduling attribute of described the first specified type;

Historical CQI value to the scheduling attribute of the current C QI value of the scheduling attribute of described the first specified type and described the first specified type is carried out filtering processing, obtains the CQI adjusted value corresponding to scheduling attribute of described the first specified type.

In conjunction with second aspect, or in the second possibility execution mode of the possible execution mode of the first of second aspect, described according to CQI adjusted value corresponding to the scheduling attribute of described the first specified type, the scheduling attribute of described the first specified type and the scheduling attribute of the second specified type, CQI adjusted value corresponding to scheduling attribute that obtains described the second specified type, comprising:

According to the scheduling attribute of the scheduling attribute of described the first specified type and the second specified type, calculate the fixed value of the CQI that the scheduling attribute of described the second specified type is corresponding;

According to CQI adjusted value corresponding to the scheduling attribute of described the first specified type and described fixed value, obtain the CQI adjusted value corresponding to scheduling attribute of described the second specified type.

The beneficial effect that the technical scheme that the embodiment of the present invention provides is brought is: the descending scheduling attribute of determining user, user is carried out to descending scheduling, and receive the uplink information of described user feedback, wherein, described uplink information comprises: channel quality indicator (CQI) and positive acknowledgement ACK or Negative Acknowledgement NACK; The described ACK receiving or NACK are added up to the Packet Error Ratio of the scheduling attribute that obtains the first specified type; According to described Packet Error Ratio, described in the historical CQI value of scheduling attribute of the CQI that receives and described the first specified type, obtain the CQI adjusted value corresponding to scheduling attribute of described the first specified type; According to CQI adjusted value corresponding to the scheduling attribute of described the first specified type, the scheduling attribute of described the first specified type and the scheduling attribute of the second specified type, obtain the CQI adjusted value corresponding to scheduling attribute of described the second specified type.Thereby the CQI realizing for different user MU scheduling attribute adjusts, and improves the accuracy that under multi-user technology, CQI adjusts.

The third aspect, provides a kind of base station, and described base station comprises:

Scheduler module, for determining user's descending scheduling attribute, carries out descending scheduling to described user, and receives the uplink information of described user feedback, and wherein, described uplink information comprises: channel quality indicator (CQI) and the indication of downlink data packet acknowledge;

Packet Error Ratio acquisition module, for according to every kind of scheduling attribute of described user and the indication of described downlink data packet acknowledge, obtains described every kind of Packet Error Ratio corresponding to scheduling attribute;

Adjusted value acquisition module, for according to described Packet Error Ratio, described in the historical CQI value of the CQI that receives and described every kind of scheduling attribute, obtain described every kind and dispatch CQI adjusted value corresponding to attribute.

In the possible execution mode of the first of the third aspect, described scheduler module, comprising:

The first setting unit, when indicating when described downlink data packet acknowledge in the set of bundled feedback and described binding that descending sub frame number is greater than 1, each descending scheduling subframe in the set of described binding is all set to the scheduling attribute of specified type, makes to only include in the information of described reporting of user the uplink information corresponding to scheduling attribute of described specified type.

Described Packet Error Ratio acquisition module specifically for:

In the possible execution mode of the second of the third aspect, described scheduler module, comprising:

The second setting unit, when indicating when described downlink data packet acknowledge in the set of bundled feedback and described binding that descending sub frame number is greater than 1, the scheduling attribute of each the descending scheduling subframe in the set of described binding is set, wherein, the scheduling attribute of described each descending scheduling subframe is different.

In the third possible execution mode of the possible execution mode of the second of the third aspect, described downlink data packet acknowledge indication comprises: ACK or NACK, described NACK is used to indicate descending sub frame in the set of described binding, and all transmission is correct, the descending sub frame that described ACK is used to indicate in the set of described binding all transmits correctly

Described Packet Error Ratio acquisition module, specifically for:

In the 4th kind of possible execution mode of the possible execution mode of the second of the third aspect, described downlink data packet acknowledge indication comprises: ACK or NACK or the 3rd indication information, described the 3rd indication information is used to indicate all errors of transmission of descending sub frame in the set of described binding, described NACK is used to indicate the equal error of transmission of descending sub frame in the set of described binding, the descending sub frame that described ACK is used to indicate in the set of described binding all transmits correctly

Described Packet Error Ratio acquisition module specifically for:

In conjunction with the third aspect, or at the possible execution mode of the first of the third aspect or in the possible execution mode of the second of the third aspect or the third possibility execution mode or the 4th kind of possible execution mode at the possible execution mode of the second of the third aspect at the possible execution mode of the second of the third aspect, described adjusted value acquisition module, comprising:

The first acquiring unit, for the described CQI receiving being adjusted according to described Packet Error Ratio, obtains every kind of current C QI value corresponding to scheduling attribute;

Second acquisition unit, for current C QI value corresponding to described every kind of scheduling attribute and the historical CQI value of every kind of scheduling attribute are carried out to filtering processing, obtains the adjusted value of described CQI.

Fourth aspect, provides a kind of base station, and described base station comprises:

Scheduler module, for determining user's descending scheduling attribute, carries out descending scheduling to described user, and receives the uplink information of user feedback, and wherein, described uplink information comprises: channel quality indicator (CQI) and positive acknowledgement ACK or Negative Acknowledgement NACK;

Packet Error Ratio acquisition module, for adding up the Packet Error Ratio of the scheduling attribute that obtains the first specified type to the described ACK receiving or NACK;

The first acquisition module, for according to described Packet Error Ratio, described in the historical CQI value of scheduling attribute of the CQI that receives and described the first specified type, obtain the CQI adjusted value corresponding to scheduling attribute of described the first specified type;

The second acquisition module, for according to CQI adjusted value corresponding to the scheduling attribute of described the first specified type, the scheduling attribute of described the first specified type and the scheduling attribute of the second specified type, obtain the CQI adjusted value corresponding to scheduling attribute of described the second specified type.

In the possible execution mode of the first of fourth aspect, described the first acquisition module, comprising:

The first acquiring unit, for the described CQI receiving being adjusted according to described Packet Error Ratio, obtains the current C QI value of the scheduling attribute of described the first specified type;

Second acquisition unit, carries out filtering processing for the historical CQI value of the current C QI value of the scheduling attribute to described the first specified type and the scheduling attribute of described the first specified type, obtains the CQI adjusted value corresponding to scheduling attribute of described the first specified type.

In conjunction with fourth aspect, or in the possible execution mode of the second of fourth aspect, described the second acquisition module, comprising:

The 3rd acquiring unit, for according to the scheduling attribute of the scheduling attribute of described the first specified type and the second specified type, calculates the fixed value of the CQI that the scheduling attribute of described the second specified type is corresponding;

The 4th acquiring unit, for obtaining the CQI adjusted value corresponding to scheduling attribute of described the second specified type according to CQI adjusted value corresponding to the scheduling attribute of described the first specified type and described fixed value.

Accompanying drawing explanation

In order to be illustrated more clearly in the technical scheme in the embodiment of the present invention, below the accompanying drawing of required use during embodiment is described is briefly described, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.

Fig. 1 is a kind of method flow diagram of adjusting channel quality indication providing in the embodiment of the present invention;

Fig. 2 is that the another kind providing in the embodiment of the present invention is adjusted the method flow diagram that channel quality is indicated;

Fig. 3 is that the another kind providing in the embodiment of the present invention is adjusted the method flow diagram that channel quality is indicated;

Fig. 4 is that the another kind providing in the embodiment of the present invention is adjusted the method flow diagram that channel quality is indicated;

Fig. 5 is that the another kind providing in the embodiment of the present invention is adjusted the method flow diagram that channel quality is indicated;

Fig. 6 is that the another kind providing in the embodiment of the present invention is adjusted the method flow diagram that channel quality is indicated;

Fig. 7 is the structural representation of a kind of base station of providing in the embodiment of the present invention;

Fig. 8 is the structural representation of the another kind of base station that provides in the embodiment of the present invention;

Fig. 9 is the structural representation of a kind of base station of providing in the embodiment of the present invention;

Figure 10 is the structural representation of the another kind of base station that provides in the embodiment of the present invention;

Figure 11 is the structural representation of the another kind of base station that provides in the embodiment of the present invention;

Figure 12 is the structural representation of the another kind of base station that provides in the embodiment of the present invention.

Embodiment

For making the object, technical solutions and advantages of the present invention clearer, below in conjunction with accompanying drawing, embodiment of the present invention is described further in detail.

Referring to Fig. 1, a kind of method of adjusting channel quality indication is provided in the present embodiment, comprising:

101, the descending scheduling attribute of determining user, carries out descending scheduling to user, and receives the uplink information of described user feedback, and wherein, described uplink information comprises: channel quality indicator (CQI) and the indication of downlink data packet acknowledge;

102,, according to every kind of scheduling attribute of described user and the indication of described downlink data packet acknowledge, obtain described every kind of Packet Error Ratio corresponding to scheduling attribute;

103, according to described Packet Error Ratio, described in the historical CQI value of the CQI that receives and described every kind of scheduling attribute, obtain described every kind and dispatch CQI adjusted value corresponding to attribute.

Alternatively, described definite user's descending scheduling attribute, comprising:

Alternatively, described downlink data packet acknowledge indication comprises: positive acknowledgement ACK or Negative Acknowledgement NACK, described NACK is used to indicate descending sub frame in the set of described binding, and all transmission is correct, and the descending sub frame that described ACK is used to indicate in the set of described binding all transmits correctly

Correspondingly, described according to every kind of scheduling attribute of described user and the indication of described downlink data packet acknowledge, obtain described every kind of Packet Error Ratio corresponding to scheduling attribute, comprising:

Alternatively, described downlink data packet acknowledge indication comprises: ACK or NACK, described NACK is used to indicate descending sub frame in the set of described binding, and all transmission is correct, and the descending sub frame that described ACK is used to indicate in the set of described binding all transmits correctly

Alternatively, described downlink data packet acknowledge indication comprises: ACK or NACK or the 3rd indication information, described the 3rd indication information is used to indicate all errors of transmission of descending sub frame in the set of described binding, described NACK is used to indicate the equal error of transmission of descending sub frame in the set of described binding, the descending sub frame that described ACK is used to indicate in the set of described binding all transmits correctly

Wherein, described according to described Packet Error Ratio, described in the historical CQI value of the CQI that receives and described every kind of scheduling attribute, obtain described every kind and dispatch CQI adjusted value corresponding to attribute, comprising:

The beneficial effect of the present embodiment is: determine user's descending scheduling attribute, user is carried out to descending scheduling, and receive the uplink information of described user feedback, wherein, described uplink information comprises: channel quality indicator (CQI) and the indication of downlink data packet acknowledge; According to every kind of scheduling attribute of described user and the indication of described downlink data packet acknowledge, obtain described every kind of Packet Error Ratio corresponding to scheduling attribute; According to described Packet Error Ratio, described in the historical CQI value of the CQI that receives and described every kind of scheduling attribute, obtain described every kind and dispatch CQI adjusted value corresponding to attribute.Thereby the CQI realizing for different user scheduling attribute adjusts, and improves the accuracy that under multi-user technology, CQI adjusts.

Referring to Fig. 2, the method for another kind of adjustment channel quality indication is provided in another embodiment of the present invention, comprising:

201, the descending scheduling attribute of determining user, carries out descending scheduling to user, and receives the uplink information of described user feedback, and wherein, described uplink information comprises: channel quality indicator (CQI) and positive acknowledgement ACK or Negative Acknowledgement NACK;

202, the described ACK receiving or NACK are added up the Packet Error Ratio of the scheduling attribute that obtains the first specified type;

203, according to described Packet Error Ratio, described in the historical CQI value of scheduling attribute of the CQI that receives and described the first specified type, obtain the CQI adjusted value corresponding to scheduling attribute of described the first specified type;

204,, according to CQI adjusted value corresponding to the scheduling attribute of described the first specified type, the scheduling attribute of described the first specified type and the scheduling attribute of the second specified type, obtain the CQI adjusted value corresponding to scheduling attribute of described the second specified type.

Wherein, described according to described Packet Error Ratio, described in the historical CQI value of scheduling attribute of the CQI that receives and described the first specified type, obtain the CQI adjusted value corresponding to scheduling attribute of described the first specified type, comprising:

Wherein, described according to CQI adjusted value corresponding to the scheduling attribute of described the first specified type, the scheduling attribute of described the first specified type and the scheduling attribute of the second specified type, obtain the CQI adjusted value corresponding to scheduling attribute of described the second specified type, comprising:

The beneficial effect of the present embodiment is: the descending scheduling attribute of determining user, user is carried out to descending scheduling, and receive the uplink information of described user feedback, wherein, described uplink information comprises: channel quality indicator (CQI) and positive acknowledgement ACK or Negative Acknowledgement NACK; The described ACK receiving or NACK are added up to the Packet Error Ratio of the scheduling attribute that obtains the first specified type; According to described Packet Error Ratio, described in the historical CQI value of scheduling attribute of the CQI that receives and described the first specified type, obtain the CQI adjusted value corresponding to scheduling attribute of described the first specified type; According to CQI adjusted value corresponding to the scheduling attribute of described the first specified type, the scheduling attribute of described the first specified type and the scheduling attribute of the second specified type, obtain the CQI adjusted value corresponding to scheduling attribute of described the second specified type.Thereby the CQI realizing for different user MU scheduling attribute adjusts, and improves the accuracy that under multi-user technology, CQI adjusts.

A kind of method of adjusting channel quality indication is provided in the embodiment of the present invention, in the present embodiment, base station has defined multiple user's scheduling attribute for user, scheduling attribute can define according to space division multiplexing attribute: at multi-user MU(Multi-User MIMO) scheduling in, user is matched to the number of plies, and pairing object etc. is defined as user's scheduling attribute; In the scheduling of coordinated multipoint transmission COMP (Coordinate Multi-point), user's scheduling attribute will be defined as for the community number of user collaboration etc.For example, in linear predictive coding multilayer pairing (at least 1 layer), according to total pairing number of plies and the CU number of plies on running time-frequency resource, define the total number of plies of a kind of user MU scheduling attribute: MuSchMode1[] [the CU number of plies]; In nonlinear precoding, according to total pairing number of plies and the CU number of plies and customer traffic position on running time-frequency resource, define the total number of plies of a kind of user MU scheduling attribute: MuSchMode2[] [the CU number of plies] [customer traffic position]; At multi-user association, send MU-JT(Multi-User MIMO Joint Transmission) in, according to total pairing number of plies and the CU number of plies on cooperation cell attribute and running time-frequency resource, define a kind of multi-user MU-JT scheduling attribute: MuJtSchMode[cooperation cell number] [total number of plies] [the CU number of plies].More while base station is overlapped and is adjusted rear CQI values for user safeguards according to every kind of scheduling attribute of user.When LTE-TDD adopts TDD ACK or NACK bundling feeding back ACK or NACK, in the binding set of regulation TDD ACK or NACK bundling feedback, descending sub frame only allows to exist a kind of user's scheduling attribute; And statistics and the CQI adjustment of Packet Error Ratio are carried out respectively in base station for every kind of user's scheduling attribute.

Referring to Fig. 3, method flow comprises:

301, the descending scheduling attribute of determining user, carries out descending scheduling to user.

In this step, when in the set of described downlink data packet acknowledge indication bundled feedback and described binding, descending sub frame number is greater than 1, in the descending sub frame set of binding, carry out combined dispatching, in the set of binding, each descending scheduling subframe is set to the scheduling attribute of specified type, comprise: in the MU of LTE-TDD scheduling, each descending scheduling constantly base station is determined the scheduling attribute of specified type for user, for example: MuSchMode1[2] [1] (is linear predictive coding MU, and total number of plies is 2, wherein 1 layer of this CU); If descending sub frame number is greater than 1 in the set of binding, in the descending sub frame set of binding, carry out combined dispatching, and the scheduling attribute MuSchMode1[2 that is specified type by the scheduling setup of attribute of all descending sub frames in binding set] [1].Thereby guarantee that the feedback of downlink data packet acknowledge indication is only for a kind of user MU scheduling attribute.Wherein, the indication of downlink data packet acknowledge comprises: positive acknowledgement ACK or Negative Acknowledgement NACK, described NACK is used to indicate descending sub frame in the set of described binding, and all transmission is correct, and the descending sub frame that described ACK is used to indicate in the set of described binding all transmits correctly

In the present embodiment, base station can be according to down channel quality and channel relevancy etc. for user determines a kind of scheduling attribute, and its detailed process similarly to the prior art, repeats no more this present embodiment.

302, receive the uplink information of user feedback.

In this step, user measures down channel and downlink data packet is detected to backward base station feedback information, and wherein, feedback information includes but not limited to: whether down channel quality indication CQI and downlink data packet transmit correct indication ACK or NACK etc.This feedback information only includes the uplink information of the scheduling attribute of specified type.

303, according to the scheduling attribute of specified type, described ACK or NACK are added up, obtain the Packet Error Ratio corresponding to scheduling attribute of specified type.

In this step, because limit user's scheduling attribute in advance base station, in the information of user feedback, only include the information of this specified type scheduling attribute, so described ACK or NACK are added up according to every kind of scheduling attribute of described user, obtain described every kind of Packet Error Ratio corresponding to scheduling attribute, comprise: described ACK or NACK are added up, obtain the Packet Error Ratio corresponding to scheduling attribute of specified type.

304, according to described Packet Error Ratio, the described CQI receiving is adjusted, obtain every kind of current C QI value corresponding to scheduling attribute.

In this step, through adding up and obtain after Packet Error Ratio after a while, Packet Error Ratio and threshold value are compared, so that the CQI receiving is adjusted, obtain the current C QI value corresponding to scheduling attribute of specified type.Detailed process wherein similarly to the prior art, to repeating no more in this embodiment of the present invention.

305, the historical CQI value of the scheduling attribute of current C QI value corresponding to the scheduling attribute of described specified type and specified type is carried out to filtering processing, obtain the adjusted value of CQI.

In the present embodiment, in base station side, safeguarded the historical CQI value of every kind of scheduling attribute, after obtaining current C QI value, historical CQI value to the scheduling attribute of current C QI value corresponding to the scheduling attribute of specified type and specified type is carried out the adjusted value that filtering obtains CQI, base station side is preserved this adjusted value simultaneously, adjusts the historical CQI value of CQI using this adjusted value as next time.

In the present embodiment, after obtaining the adjusted value of CQI, base station side is mapped as MCS by the adjusted value of CQI, carries out the transmission of downlink data packet.

Wherein, step 304-305 be concrete carry out according to described Packet Error Ratio, described in the CQI that receives and the historical CQI value of described every kind of scheduling attribute, obtain described every kind of process of dispatching the CQI adjusted value that attribute is corresponding.

For making those skilled in the art more clearly understand the present invention, be now exemplified below:

As shown in table 1, ACK or NACK feedback timetable under the different proportionings of TDD are provided:

Table 1

The TDD proportioning 1 of take in table 1 describes as example: correctly whether the packet of the ACK on sub-frame of uplink TTI7 or NACK feedback representation descending sub frame TTI0 and TTI1 transmission.Now TTI0 and TTI1 are defined as to descending sub frame in the binding set of TTI7, and in binding set, descending sub frame number is greater than 1.When in adopting TDD ACK or NACK bundling feedback and binding set, descending sub frame number is greater than 1, on TTI0 and TTI1, carry out combined dispatching, for user determines a kind of scheduling attribute, restricted T TI0 is consistent with the scheduling attribute on TTI1, thereby the feedback of guaranteeing TDD ACK or NACK bundling is only for a kind of user MU scheduling attribute.

The beneficial effect of the present embodiment is: the historical CQI adjusted value of base station different scheduling attributes for user safeguards, and when carrying out descending scheduling, in TDD ACK or NACK bundling binding set, each descending scheduling subframe is set to the scheduling attribute of specified type, ACK or NACK the scheduling attribute for this specified type that user is reported at corresponding sub-frame of uplink.Base station can be the scheduling statistics of attributes Packet Error Ratio of specified type like this, and according to described Packet Error Ratio, described in the historical CQI value of the CQI that receives and described every kind of scheduling attribute, obtain described every kind and dispatch CQI adjusted value corresponding to attribute.Thereby the CQI realizing for different user scheduling attribute adjusts, and improves the accuracy that under multi-user technology, CQI adjusts.

In another embodiment of the present invention, provide the method for another kind of adjustment channel quality indication, the NACK differentiated treatment to TDD ACK or NACK bundling feedback in MU.Concrete, base station is that each MU scheduling attribute of user is safeguarded CQI value after a historical adjustment, when in adopting TDD ACK or NACKbundling feedback and binding set, descending sub frame number is greater than 1, by the NACK differentiated treatment to feedback, the CQI realizing for different user MU scheduling attribute adjusts.Referring to Fig. 4, comprising:

401, the descending scheduling attribute of determining user, carries out descending scheduling to user, receives the information of user feedback.

In the present embodiment, when user is carried out to descending scheduling, when in the set of described downlink data packet acknowledge indication bundled feedback and described binding, descending sub frame number is greater than 1, in the descending sub frame set of binding, carry out combined dispatching, and the scheduling attribute of each the descending scheduling subframe in the set of described binding is set, wherein, do not limit the scheduling attribute of descending sub frame in binding set, the user of the descending sub frame of each binding dispatches attribute can be different.User measures down channel and downlink data packet is detected to backward base station side feedback information, wherein, feedback information includes but not limited to: descending CQI and downlink data packet acknowledge indication ACK or NACK etc., described NACK is used to indicate descending sub frame in the set of described binding, and all transmission is correct, and the descending sub frame that described ACK is used to indicate in the set of described binding all transmits correctly.

In the present embodiment, the ACK of user feedback or NACK comprise that ACK or the NACK of different scheduling attributes carry out the end value after logical “and” operation.

402, according to preset rules, described every kind of NACK corresponding to scheduling attribute is carried out to different countings and process, to obtain described every kind of Packet Error Ratio corresponding to scheduling attribute.

In the present embodiment, in TDD ACK or NACK bundling feedback binding set, descending sub frame comprises a plurality of scheduling attributes, so described NACK is added up according to every kind of scheduling attribute of described user, obtain described every kind of Packet Error Ratio corresponding to scheduling attribute, comprise: according to preset rules, described every kind of NACK corresponding to scheduling attribute is carried out to different countings and process, to obtain described every kind of Packet Error Ratio corresponding to scheduling attribute.In the present embodiment, set in advance the cumulative rule of the NACK that different scheduling attributes are corresponding, to realize the differentiated treatment to NACK feedback, for example: the descending sub frame of TDD ACK or NACK bundling feedback binding set exists two kinds of Mu scheduling attribute MuSchMode1[1 of same user] [1] (number of plies of always matching is 1,1 layer of this CU) and MuSchMode1[2] [1] (number of plies of always matching is 2,1 layer of this CU).User feedback NACK, receive after this NACK base station, to dispatch attribute MuSchMode1[1] Packet Error Ratio of [1] the cumulative a (a<1) of NACK counter in calculating, to dispatch attribute MuSchMode1[2] Packet Error Ratio of [1] the cumulative b (b=1) of NACK counter in calculating, make to dispatch attribute MuSchMode1[1] CQI of [1] adjusts and is slower than scheduling attribute MuSchMode1[2] CQI of [1] adjusts.

403, according to described Packet Error Ratio, the described CQI receiving is adjusted, obtain every kind of current C QI value corresponding to scheduling attribute.

404, current C QI value corresponding to described every kind of scheduling attribute and the historical CQI value of every kind of scheduling attribute are carried out to filtering processing, obtain the adjusted value of CQI.

In the present embodiment, in base station side, safeguarded the historical CQI value of every kind of scheduling attribute, after obtaining current C QI value, every kind of corresponding current C QI value and every kind of historical CQI value of dispatching attribute of scheduling attribute is carried out to the adjusted value that filtering obtains CQI, base station side is preserved this adjusted value simultaneously, adjusts the historical CQI value of CQI using this adjusted value as next time.

Wherein, step 403-404 be concrete carry out according to described Packet Error Ratio, described in the CQI that receives and the historical CQI value of described every kind of scheduling attribute, obtain described every kind of process of dispatching the CQI adjusted value that attribute is corresponding.

The beneficial effect of the present embodiment is: the historical CQI adjusted value of base station different scheduling attributes for user safeguards, and when carrying out descending scheduling, restricted T DD ACK or NACK bundling feedback are not bound the scheduling attribute of each descending scheduling subframe in set; After receiving user's feedback, different scheduling attributes is carried out to different NACK countings and process, obtain described every kind of Packet Error Ratio corresponding to scheduling attribute; According to described Packet Error Ratio, described in the historical CQI value of the CQI that receives and described every kind of scheduling attribute, obtain described every kind of CQI adjusted value corresponding to scheduling attribute, thereby the CQI realizing for different user MU scheduling attribute adjusts, and improves the accuracy that under multi-user technology, CQI adjusts.

The method of another kind of adjustment channel quality indication is provided in another embodiment of the present invention, on the one hand, CQI value after the historical adjustment of each MU scheduling attribute maintenance that base station is user; On the other hand, when in adopting TDD ACK or NACK bundling feedback and binding set, descending sub frame number is greater than 1, increase by the 3rd indication information, described the 3rd indication information is used to indicate not all errors of transmission of descending sub frame in TDD ACK or NACK bundling feedback binding set, and described NACK is used to indicate the equal error of transmission of described descending sub frame number.

Referring to Fig. 5, concrete method flow comprises:

501, the descending scheduling attribute of determining user, carries out descending scheduling to user, receives the uplink information of user feedback.

In the present embodiment, when in the set of described downlink data packet acknowledge indication bundled feedback and described binding, descending sub frame number is greater than 1, in the descending sub frame set of binding, carry out combined dispatching, and the scheduling attribute of each the descending scheduling subframe in the set of described binding is set, wherein, do not limit the scheduling attribute of the descending sub frame of binding in descending scheduling, in each binding set, the scheduling attribute of descending sub frame can be different, user measures down channel and downlink data packet is detected to backward base station side feedback information, wherein, feedback information includes but not limited to: channel quality indicator (CQI) and the indication of downlink data packet acknowledge etc., wherein the indication of downlink data packet acknowledge comprises: ACK or NACK or the 3rd indication information.Wherein, when in adopting TDD ACK or NACK bundling feedback and binding set, descending sub frame number is greater than 1, when user feedback ACK or NACK, if the packet testing result of all subframes is transmission correctly in binding set, user is to base station feedback ACK; If the packet testing result of all subframes is error of transmission in binding set, user is to base station feedback NACK; If the packet testing result of all subframes has transmission correctly and 2 kinds of states of error of transmission in binding set, user is to base station feedback the 3rd indication information.

502, judge in described uplink information and whether comprise and if so, perform step 503 by the 3rd indication information, otherwise execution step 504.

In this step, base station receives that user adopts after TDD ACK or NACK bundling feedack, this uplink information is analyzed, according to comprising different information carry out different operations.When know user feedback be the 3rd indication information time, execution step 503, for different user MU scheduling attribute, carrying out different NACK countings processes, when know user feedback when the NACK, execution step 504, carries out identical NACK counting to different user MU scheduling attribute MuSchMode and processes.

503, according to preset rules, NACK corresponding to described different scheduling attribute carried out to different countings and process, obtain described every kind of Packet Error Ratio corresponding to scheduling attribute.

In the present embodiment, set in advance the counting rule of the NACK that different scheduling attributes are corresponding, when receiving the 3rd indication information, NACK corresponding to different scheduling attributes carried out to different countings to be processed, for example: two kinds of Mu scheduling attribute MuSchMode1[1 that have same user in descending scheduling subframe corresponding to the NACK of ACK or NACK binding internal feedback] [1] (number of plies of always matching is 1, 1 layer of this CU) and MuSchMode1[2] [1] (number of plies of always matching is 2, 1 layer of this CU), receive after the 3rd indication information for ACK or NACK bundled feedback base station, will be for scheduling attribute MuSchMode1[1] Packet Error Ratio of [1] the cumulative a of NACK counter in calculating, wherein a<1 can be set, will be for scheduling attribute MuSchMode1[2] Packet Error Ratio of [1] the cumulative b of NACK counter in calculating, b=1 can be set, make to dispatch attribute MuSchMode[1] CQI of [1] adjusts and is slower than scheduling attribute MuSchMode[2] CQI of [1] adjusts.In the present embodiment, the value of a and b is not specifically limited.

504, described user's NACK corresponding to difference scheduling attribute carried out to identical counting and process, obtain described every kind of Packet Error Ratio corresponding to scheduling attribute.

In the present embodiment, different scheduling attributes are set identical to receiving the cumulative rule of NACK, after receiving NACK, all scheduling attributes are carried out to identical NACK accumulation process, for example all cumulative 1.

505, according to described Packet Error Ratio, the described CQI receiving is adjusted, obtain every kind of current C QI value corresponding to scheduling attribute.

In this step, through adding up and obtain after Packet Error Ratio after a while, Packet Error Ratio and threshold value are compared, so that the CQI receiving is adjusted, obtain every kind of current C QI value corresponding to scheduling attribute.Detailed process wherein similarly to the prior art, to repeating no more in this embodiment of the present invention.

506, according to the historical CQI value of current C QI value corresponding to described every kind of scheduling attribute and every kind of scheduling attribute, obtain the adjusted value of CQI.

Wherein, step 505-506 be concrete carry out according to described Packet Error Ratio, described in the CQI that receives and the historical CQI value of described every kind of scheduling attribute, obtain described every kind of process of dispatching the CQI adjusted value that attribute is corresponding.

The beneficial effect of the present embodiment comprises: the historical CQI adjusted value of base station different scheduling attributes for user safeguards, when descending sub frame number is greater than 1 in adopting TDD ACK or NACK bundling feedback and binding set, on the ACK of user feedback or NACK attribute, increase by the 3rd indication information; When carrying out descending scheduling, do not limit the scheduling attribute of each descending scheduling subframe of binding; After receiving user's feedback, according to the NACK receiving or the 3rd indication information, difference scheduling attribute is carried out to different NACK counting processing, obtain described every kind of Packet Error Ratio corresponding to scheduling attribute; According to described Packet Error Ratio, described in the historical CQI value of the CQI that receives and described every kind of scheduling attribute, obtain described every kind of CQI adjusted value corresponding to scheduling attribute, thereby the CQI realizing for different user MU scheduling attribute adjusts, and improves the accuracy that under multi-user technology, CQI adjusts.

The method of another kind of adjustment channel quality indication is provided in another embodiment of the present invention, in the present embodiment, only safeguard the historical CQI value of the first specified type scheduling attribute, the CQI adjusted value of all the other scheduling attributes of user is processed acquisition by the CQI adjusted value of the first specified type scheduling attribute to described.

Referring to Fig. 6, method flow comprises:

601, the descending scheduling attribute of determining user, carries out descending scheduling to described user, and receives the uplink information of user feedback, and the described ACK receiving or NACK are added up, and obtains the Packet Error Ratio corresponding to scheduling attribute of the first specified type.

In the present embodiment, when user is carried out to descending scheduling, when in the set of described downlink data packet acknowledge indication bundled feedback and described binding, descending sub frame number is greater than 1, in the descending sub frame set of binding, carry out combined dispatching, and the scheduling attribute of each the descending scheduling subframe in the set of described binding is set, wherein, the scheduling attribute that does not limit descending sub frame in TDD ACK in descending scheduling or NACK bundling binding set, the scheduling attribute of the descending sub frame of each binding can be different.User measures down channel and downlink data packet is detected to backward base station side feedback information, wherein, feedback information includes but not limited to: channel quality indicator (CQI) and downlink data packet acknowledge indication ACK or NACK etc., described NACK is used to indicate descending sub frame in the set of described binding, and all transmission is correct, and the descending sub frame that described ACK is used to indicate in the set of described binding all transmits correctly.

The first specified type in the present embodiment is included as user and specifies a kind of scheduling attribute, base station is after receiving the NACK of user feedback, according to user's the first specified type scheduling attribute, NACK is added up, obtain Packet Error Ratio corresponding to user's the first specified type scheduling attribute.Wherein, the scheduling attribute of the first specified type can be that alone family scheduling attribute can be also that multi-subscriber dispatching attribute is not specifically limited this present embodiment.

602, according to described Packet Error Ratio, the described CQI receiving is adjusted, obtain the current C QI value of the scheduling attribute of described the first specified type.

In this step, through adding up and obtain after Packet Error Ratio after a while, Packet Error Ratio and threshold value are compared, so that the CQI receiving is adjusted, obtain the current C QI value corresponding to scheduling attribute of the first specified type.Detailed process wherein similarly to the prior art, to repeating no more in this embodiment of the present invention.

603, according to the historical CQI value of the scheduling attribute of the current C QI value of the scheduling attribute of described the first specified type and described the first specified type, the described CQI receiving is adjusted, obtain the CQI adjusted value corresponding to scheduling attribute of described the first specified type.

In the present embodiment, in base station side, safeguarded the historical CQI value of user's the first specified type, after obtaining current C QI value, the historical CQI value of the scheduling attribute of current C QI value corresponding to the scheduling attribute of the first specified type and the first specified type is carried out to the adjusted value that filtering obtains the CQI that the scheduling attribute of the first specified type is corresponding, base station side is preserved this adjusted value simultaneously, adjusts the historical CQI value of CQI using this adjusted value as next time.

Wherein, step 502-503 be concrete carry out according to described Packet Error Ratio, described in the historical CQI value of scheduling attribute of the CQI that receives and described the first specified type, obtain the process of the CQI adjusted value that the scheduling attribute of described the first specified type is corresponding.

604,, according to CQI adjusted value corresponding to the scheduling attribute of described the first specified type, the scheduling attribute of the first specified type and the scheduling attribute of the second specified type, obtain the CQI adjusted value corresponding to scheduling attribute of described the second specified type.

In the present embodiment, according to CQI adjusted value corresponding to the scheduling attribute of described the first specified type, the scheduling attribute of the first specified type and the scheduling attribute of the second specified type, obtain the CQI adjusted value corresponding to scheduling attribute of described the second specified type, comprise: according to the scheduling attribute of the scheduling attribute of described the first specified type and the second specified type, calculate the fixed value of the CQI that the scheduling attribute of described the second specified type is corresponding; According to CQI adjusted value corresponding to the scheduling attribute of described the first specified type and described fixed value, obtain the CQI adjusted value corresponding to scheduling attribute of described the second specified type.For example, on the basis of CQI adjusted value corresponding to the scheduling attribute of described the first specified type, deduct a fixed value, obtain the CQI adjusted value of the scheduling attribute of the second specified type.Described fixed value can be by the scheduling attribute of the second specified type and the scheduling attribute of the first specified type the conversion acquisitions such as signal power losses amount, correlation, this present embodiment is not specifically limited.

In the present embodiment, after the CQI adjusted value of scheduling attribute that obtains the second specified type, base station is mapped as MCS by the adjusted value of CQI, carries out the transmission of downlink data packet.

The beneficial effect of the present embodiment comprises: base station side is only safeguarded the historical CQI value that the scheduling attribute of the first specified type is corresponding, after receiving user's feedback, according to the ACK of feedback or NACK Packet Error Ratio corresponding to scheduling attribute of adding up the first specified type, according to described Packet Error Ratio, described in the historical CQI value of scheduling attribute of the CQI that receives and described the first specified type, obtain the CQI adjusted value corresponding to scheduling attribute of described the first specified type; According to the scheduling attribute of CQI adjusted value corresponding to the scheduling attribute of described the first specified type and the second specified type, obtain the CQI adjusted value corresponding to scheduling attribute of described the second specified type.Thereby the CQI realizing for different user MU scheduling attribute adjusts, and improves the accuracy that under multi-user technology, CQI adjusts.

Referring to Fig. 7, a kind of base station is provided in another embodiment of the present invention, comprising: scheduler module 701, Packet Error Ratio acquisition module 702 and adjusted value acquisition module 703.

Scheduler module 701, for determining user's descending scheduling attribute, carries out descending scheduling to described user, and receives the uplink information of described user feedback, and wherein, described uplink information comprises: channel quality indicator (CQI) and the indication of downlink data packet acknowledge;

Packet Error Ratio acquisition module 702, for according to every kind of scheduling attribute of described user and the indication of described downlink data packet acknowledge, obtains described every kind of Packet Error Ratio corresponding to scheduling attribute;

Adjusted value acquisition module 703, for according to described Packet Error Ratio, described in the historical CQI value of the CQI that receives and described every kind of scheduling attribute, obtain described every kind and dispatch CQI adjusted value corresponding to attribute.

Alternatively, referring to Fig. 8, described scheduler module 701, comprising:

The first setting unit 701a, when indicating when described downlink data packet acknowledge in the set of bundled feedback and described binding that descending sub frame number is greater than 1, each descending scheduling subframe in the set of described binding is all set to the scheduling attribute of specified type, makes to only include in the information of described reporting of user the uplink information corresponding to scheduling attribute of described specified type.

Correspondingly, described Packet Error Ratio acquisition module 702 specifically for:

Alternatively, referring to Fig. 8, described scheduler module 701, comprising:

The second setting unit 701b, when indicating when described downlink data packet acknowledge in the set of bundled feedback and described binding that descending sub frame number is greater than 1, the scheduling attribute of each the descending scheduling subframe in the set of described binding is set, wherein, the scheduling attribute of described each descending scheduling subframe is different.

Correspondingly, described Packet Error Ratio acquisition module 702, specifically for:

Referring to Fig. 8, preferably, described adjusted value acquisition module 703, comprising:

The first acquiring unit 703a, for the described CQI receiving being adjusted according to described Packet Error Ratio, obtains every kind of current C QI value corresponding to scheduling attribute;

Second acquisition unit 703b, for current C QI value corresponding to described every kind of scheduling attribute and the historical CQI value of every kind of scheduling attribute are carried out to filtering processing, obtains the adjusted value of described CQI.

Referring to Fig. 9, another kind of base station is provided in another embodiment of the present invention, comprising: scheduler module 801, Packet Error Ratio acquisition module 802, the first acquisition modules 803 and the second acquisition module 804.

Scheduler module 801, for determining user's descending scheduling attribute, carries out descending scheduling to described user, and receives the uplink information of user feedback, and wherein, described uplink information comprises: channel quality indicator (CQI) and positive acknowledgement ACK or Negative Acknowledgement NACK;

Packet Error Ratio acquisition module 802, for adding up the Packet Error Ratio of the scheduling attribute that obtains the first specified type to the described ACK receiving or NACK;

The first acquisition module 803, for according to described Packet Error Ratio, described in the historical CQI value of scheduling attribute of the CQI that receives and described the first specified type, obtain the CQI adjusted value corresponding to scheduling attribute of described the first specified type;

The second acquisition module 804, for according to CQI adjusted value corresponding to the scheduling attribute of described the first specified type, the scheduling attribute of described the first specified type and the scheduling attribute of the second specified type, obtain the CQI adjusted value corresponding to scheduling attribute of described the second specified type.

Referring to Figure 10, described the first acquisition module 803, comprising:

The first acquiring unit 803a, for the described CQI receiving being adjusted according to described Packet Error Ratio, obtains the current C QI value of the scheduling attribute of described the first specified type;

Second acquisition unit 803b, carries out filtering processing for the historical CQI value of the current C QI value of the scheduling attribute to described the first specified type and the scheduling attribute of described the first specified type, obtains the CQI adjusted value corresponding to scheduling attribute of described the first specified type.

Referring to Figure 10, described the second acquisition module 804, comprising:

The 3rd acquiring unit 804a, for according to the scheduling attribute of the scheduling attribute of described the first specified type and the second specified type, calculates the fixed value of the CQI that the scheduling attribute of described the second specified type is corresponding;

The 4th acquiring unit 804b, for obtaining the CQI adjusted value corresponding to scheduling attribute of described the second specified type according to CQI adjusted value corresponding to the scheduling attribute of described the first specified type and described fixed value.

It should be noted that: the base station providing in above-described embodiment, only the division with above-mentioned each functional module is illustrated, in practical application, can above-mentioned functions be distributed and by different functional modules, completed as required, the internal structure that is about to base station is divided into different functional modules, to complete all or part of function described above.

In addition, the embodiment of the method for the base station providing in above-described embodiment and channel quality adjustment belongs to same design, and its specific implementation process refers to embodiment of the method, repeats no more here.

Referring to Figure 11, a kind of base station is also provided in another embodiment of the present invention, described base station comprises processor 901 and memory 902;

Described memory 902, for storing the historical CQI value of every kind of scheduling attribute;

Described processor 901, for determining user's descending scheduling attribute, carries out descending scheduling to described user, and receives the uplink information of described user feedback, and wherein, described uplink information comprises: channel quality indicator (CQI) and the indication of downlink data packet acknowledge; According to every kind of scheduling attribute of described user and the indication of described downlink data packet acknowledge, obtain described every kind of Packet Error Ratio corresponding to scheduling attribute; According to described Packet Error Ratio, described in the historical CQI value of the CQI that receives and described every kind of scheduling attribute, obtain described every kind and dispatch CQI adjusted value corresponding to attribute.

Referring to Figure 12, another kind of base station is provided in another embodiment of the present invention, comprising: memory 1001 and processor 1002.

Described memory 1001, for storing the historical CQI value of every kind of scheduling attribute;

Described processor 1002, for determining user's descending scheduling attribute, described user is carried out to descending scheduling, and receive the uplink information of described user feedback, wherein, described uplink information comprises: channel quality indicator (CQI) and positive acknowledgement ACK or Negative Acknowledgement NACK; The described ACK receiving or NACK are added up to the Packet Error Ratio of the scheduling attribute that obtains the first specified type; According to described Packet Error Ratio, described in the historical CQI value of scheduling attribute of the CQI that receives and described the first specified type, obtain the CQI adjusted value corresponding to scheduling attribute of described the first specified type; According to CQI adjusted value corresponding to the scheduling attribute of described the first specified type, the scheduling attribute of described the first specified type and the scheduling attribute of the second specified type, obtain the CQI adjusted value corresponding to scheduling attribute of described the second specified type.

The invention described above embodiment sequence number, just to describing, does not represent the quality of embodiment.

One of ordinary skill in the art will appreciate that all or part of step that realizes above-described embodiment can complete by hardware, also can come the hardware that instruction is relevant to complete by program, described program can be stored in a kind of computer-readable recording medium, the above-mentioned storage medium of mentioning can be read-only memory, disk or CD etc.

The foregoing is only preferred embodiment of the present invention, in order to limit the present invention, within the spirit and principles in the present invention not all, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.

Claims

1. a method of adjusting channel quality indication, is characterized in that, described method comprises:

The descending scheduling attribute of determining user, carries out descending scheduling to described user, and receives the uplink information of described user feedback, and wherein, described uplink information comprises: channel quality indicator (CQI) and the indication of downlink data packet acknowledge;

According to every kind of scheduling attribute of described user and the indication of described downlink data packet acknowledge, obtain described every kind of Packet Error Ratio corresponding to scheduling attribute;

According to described Packet Error Ratio, described in the historical CQI value of the CQI that receives and described every kind of scheduling attribute, obtain described every kind and dispatch CQI adjusted value corresponding to attribute.

2. method according to claim 1, is characterized in that, described definite user's descending scheduling attribute, comprising:

3. method according to claim 2, it is characterized in that, described downlink data packet acknowledge indication comprises: positive acknowledgement ACK or Negative Acknowledgement NACK, described NACK is used to indicate descending sub frame in the set of described binding, and all transmission is correct, the descending sub frame that described ACK is used to indicate in the set of described binding all transmits correctly

4. method according to claim 1, is characterized in that, described definite user's descending scheduling attribute, comprising:

5. method according to claim 4, it is characterized in that, described downlink data packet acknowledge indication comprises: ACK or NACK, described NACK is used to indicate descending sub frame in the set of described binding, and all transmission is correct, the descending sub frame that described ACK is used to indicate in the set of described binding all transmits correctly

6. method according to claim 4, it is characterized in that, described downlink data packet acknowledge indication comprises: ACK or NACK or the 3rd indication information, described the 3rd indication information is used to indicate all errors of transmission of descending sub frame in the set of described binding, described NACK is used to indicate the equal error of transmission of descending sub frame in the set of described binding, the descending sub frame that described ACK is used to indicate in the set of described binding all transmits correctly

7. according to the method described in claim 1-6 any one, it is characterized in that, described according to described Packet Error Ratio, described in the historical CQI value of the CQI that receives and described every kind of scheduling attribute, obtain described every kind and dispatch CQI adjusted value corresponding to attribute, comprising:

8. a method of adjusting channel quality indication, is characterized in that, described method comprises:

The descending scheduling attribute of determining user, carries out descending scheduling to described user, and receives the uplink information of described user feedback, and wherein, described uplink information comprises: channel quality indicator (CQI) and positive acknowledgement ACK or Negative Acknowledgement NACK;

The described ACK receiving or NACK are added up to the Packet Error Ratio of the scheduling attribute that obtains the first specified type;

According to described Packet Error Ratio, described in the historical CQI value of scheduling attribute of the CQI that receives and described the first specified type, obtain the CQI adjusted value corresponding to scheduling attribute of described the first specified type;

According to CQI adjusted value corresponding to the scheduling attribute of described the first specified type, the scheduling attribute of described the first specified type and the scheduling attribute of the second specified type, obtain the CQI adjusted value corresponding to scheduling attribute of described the second specified type.

9. method according to claim 8, it is characterized in that, described according to described Packet Error Ratio, described in the historical CQI value of scheduling attribute of the CQI that receives and described the first specified type, obtain the CQI adjusted value corresponding to scheduling attribute of described the first specified type, comprising:

10. method according to claim 8 or claim 9, it is characterized in that, described according to CQI adjusted value corresponding to the scheduling attribute of described the first specified type, the scheduling attribute of described the first specified type and the scheduling attribute of the second specified type, CQI adjusted value corresponding to scheduling attribute that obtains described the second specified type, comprising:

11. 1 kinds of base stations, is characterized in that, described base station comprises:

12. base stations according to claim 11, is characterized in that, described scheduler module, comprising:

13. base stations according to claim 12, it is characterized in that, described downlink data packet acknowledge indication comprises: positive acknowledgement ACK or Negative Acknowledgement NACK, described NACK is used to indicate descending sub frame in the set of described binding, and all transmission is correct, the descending sub frame that described ACK is used to indicate in the set of described binding all transmits correctly

Described Packet Error Ratio acquisition module specifically for:

14. base stations according to claim 11, is characterized in that, described scheduler module, comprising:

15. base stations according to claim 14, it is characterized in that, described downlink data packet acknowledge indication comprises: ACK or NACK, described NACK is used to indicate descending sub frame in the set of described binding, and all transmission is correct, the descending sub frame that described ACK is used to indicate in the set of described binding all transmits correctly

Described Packet Error Ratio acquisition module, specifically for:

16. base stations according to claim 14, it is characterized in that, described downlink data packet acknowledge indication comprises: ACK or NACK or the 3rd indication information, described the 3rd indication information is used to indicate all errors of transmission of descending sub frame in the set of described binding, described NACK is used to indicate the equal error of transmission of descending sub frame in the set of described binding, the descending sub frame that described ACK is used to indicate in the set of described binding all transmits correctly

Described Packet Error Ratio acquisition module specifically for:

17. according to the base station described in claim 11-16 any one, it is characterized in that, described adjusted value acquisition module, comprising:

18. 1 kinds of base stations, is characterized in that, described base station comprises:

19. base stations according to claim 18, is characterized in that, described the first acquisition module, comprising:

20. according to the base station described in claim 18 or 19, it is characterized in that, described the second acquisition module, comprising: