CN102045817A - Method and device for self-adaptively pairing uplink multi-input/multi-output - Google Patents

Abstract

The invention discloses a method and device for self-adaptively pairing uplink multi-input/multi-output (MIMO) and solves the problems of poor pairing efficiency, poor chain path stability and low data transmission reliability in the traditional mode. The method comprises the following steps of: determining a terminal to be paired according to the capability of the user terminal for executing the MIMO and retransmitting information of a hybrid automatic retransmitting request (HARQ) of the user terminal when an event for triggering the pairing is received and the paired period reaches; determining a second terminal to be paired, which is paired with the terminal to be paired and pairing according to an uplink modulation coding index (UIUC) value and paired information of the terminal to be paired; and determining whether to split the pair of the terminal to be paired according to the retransmitting information of the HARQ when the terminal to be paired is paired and the pair splitting period reaches. With the technical scheme disclosed by the invention, the pairing efficiency and the success rate can be improved and the reliability for data transmission can be improved.

Description

A kind of up multiple input multiple output adaptive matching method and device

Technical field

The present invention relates to the communications field, relate in particular to a kind of based on ascending HARQ (Hybrid Automatic Repeat reQuest, promptly mix automatic repeat requests) Uplink MIMO (Multiple Input Multiple Output, multiple-input and multiple-output) self adaptation matching method and device thereof.

Background technology

The MIMO technology is one of key technology of physical layer in OFDMA (Orthogonal Frequency Division Multiple Access, the OFDM) system.In mimo system, the signal S (k) that signal source produces is through being launched by many antennas behind the space-time code, received by many antennas of receiving terminal afterwards through wireless channel, receiving terminal carries out recovering original S (k) signal after the space-time decoding to this signal that receives.

The MIMO technology suppresses channel fading by utilizing many antennas, it does as a whole being optimized with multipath antenna channel and emission, reception, thereby improving the message capacity and the availability of frequency spectrum, is a kind of signal to be bordering on optimum spatial domain and time domain combined diversity, interference cancellation treatment technology.

Uplink MIMO claims virtual MIMO again, in the prior art, because the size of travelling carriage generally can't satisfy the demand of many antennas, as in the 2.5GHz frequency range, wavelength is 12cm, 3 wavelength are 36cm, mobile portable antennas increases can cause rolling up of cost and power consumption, therefore, generally an antenna is set at travelling carriage, use the Uplink MIMO technology as needs, need cooperate by a plurality of terminals and use the Uplink MIMO technology, as shown in Figure 1, use the Uplink MIMO technology by two terminal cooperations, these two terminals are used a transmit antennas separately, use identical running time-frequency resource, data at each terminal all adopt non-MIMO pattern that it is encoded, interweave, modulation and mapping, the data subcarrier after will modulate again sends to the base station according to protocol code after in pairs, is received the signal of these two terminals transmissions by many antennas of base station.

Realize that by two or more terminal cooperations the mode of Uplink MIMO technology is called matching method, the self adaptation pairing refers to match by the suitable a plurality of MS (user terminal) of adaptive selection, at present, matching method is mainly enforceable two MS that choose, these two MS that select are matched, carry out the Uplink MIMO technology by the MS after the pairing again, though prior art can realize pairing to a certain extent, but because it is to match by enforceable, therefore, by this kind mode, when two improper pairings of MS that are used to match of choosing, use these two MS cooperations to carry out in the Uplink MIMO technical process, still use this that MS is carried out the Uplink MIMO technology in the time of may taking place to worsen because of channel condition and cause the transfer of data problem of unstable, as, when transfer of data is unstable, then may be owing to there not being timely separation of copulating moth to cause the problem of off-grid; Therefore, the MS matching method that uses of prior art carries out that Uplink MIMO exists that following defective: MS pairing validity is low, link stability is poor, data transmission credibility difference and system uplink throughput are lower etc.

The HARQ technology is meant, channel condition better, packet when once transmission can successfully be transmitted, do not need to retransmit this packet; When channel condition was relatively poor, packet may need to retransmit and repeatedly could successfully transmit, if also successfully transmission when the number of times that packet retransmits surpasses predefined maximum retransmission, then with this data packet discarding.In the prior art, when adopting HARQ mechanism transmits data packets, it is as follows to estimate good Yu the bad mode of channel condition: the quantity of data packets of transmission success in the statistics one-period (i.e. data packet number by a transmission success and all pass through the quantity of data packets sum of re-transmission transmission success), and the total quantity (this total quantity equates with the total degree one-tenth of transmission) of transmission success and unsuccessful packet in the statistics one-period, the transmission success quantity of data packets that again statistics is obtained and the ratio of total quantity are as judging good Yu the bad foundation of channel condition, good more as the big more channel condition of ratio, on the contrary poor more.Describe the quantity of data packets that how to obtain transmission success in the one-period and the total quantity of data packets for transmission in detail with a concrete example below: setting maximum retransmission is 4, do not consider the size of packet, suppose in the HARQ measurement period, quantity of data packets by a transmission success is n1, the quantity of data packets of back transmission success is n2 by retransmitting once, by retransmit twice the back transmission success quantity of data packets be n3, by the quantity of data packets that retransmits transmission success after three times is n4, by the quantity of data packets that retransmits transmission success after four times is n5, by the quantity of data packets that retransmits unsuccessful transmission after four times is n6, and it is as follows with transmits data packets total quantity N2 then to add up the data packet number N1 (the follow-up effective data packets that is called) that obtains transmission success:

N ₁=n ₁+ n ₂+ n ₃+ n ₄+ n ₅Formula (1)

N2=n ₁* 1+n ₂* 2+n ₃* 3+n ₄* 4+n ₅* 5+n ₆* 5 formulas (2)

Further, in order to improve the accuracy of statistics, also can consider the size of packet at above-mentioned example, in the HARQ cycle statistics, quantity of data packets by a transmission success is n1, and the size of this incremental data bag is followed successively by m1 (1), m1 (2) ... m1 (n1); The quantity of data packets of back transmission success is n2 by retransmitting once, and the size of this incremental data bag is followed successively by m2 (1), m2 (2) ... m2 (n2); By retransmit twice the back transmission success quantity of data packets be n3, the size of this incremental data bag is followed successively by m3 (1), m3 (2) ... m3 (n3); By the quantity of data packets that retransmits transmission success after three times is n4, and the size of this incremental data bag is followed successively by m4 (1), m4 (2) ... m4 (n4); By the quantity of data packets that retransmits transmission success after four times is n5, and the size of this incremental data bag is followed successively by m5 (1), m5 (2) ... m5 (n5); By the quantity of data packets that retransmits unsuccessful transmission after four times is n6, and the size of this incremental data bag is m6 (1), m6 (2) successively ... m6 (n6); Then effectively wrap number and the overall budget number is as follows:

N ₁＝[m ₁₍₁₎+m ₁₍₂₎+...+m _1(n1)]+[m ₂₍₁₎+m ₂₍₂₎+...+m _2(n2)]+[m ₃₍₁₎+m ₃₍₂₎+...+m _3(n3)]+

Formula (3)

[m ₄₍₁₎+m ₄₍₂₎+...+m _4(n4)]+[m ₅₍₁₎+m ₅₍₂₎+...+m _5(n5)]

N ₂＝[m ₁₍₁₎+m ₁₍₂₎+...+m _1(n1)]+[m ₂₍₁₎+m ₂₍₂₎+...+m _2(n2)]×2+[m ₃₍₁₎+m ₃₍₂₎+...+m _3(n3)]×3+

Formula (4)

[m ₄₍₁₎+m ₄₍₂₎+...+m _4(n4)]×4+[m ₅₍₁₎+m ₅₍₂₎+...+m _5(n5)]×5+[m ₆₍₁₎+m ₆₍₂₎+...+m _6(n6)]×5

Summary of the invention

The embodiment of the invention provides a kind of Uplink MIMO self adaptation matching method and device, adopt existing matching method to match when carrying out Uplink MIMO in the prior art to solve and cause matching that validity is poor, link stability difference and the lower problem of data transmission credibility.

A kind of up multiple-input and multiple-output MIMO self adaptation matching method comprises:

After receiving the incident that is used to trigger pairing and pairing cycle when arriving, carry out MIMO ability and mix automatic repeat requests HARQ retransmission information according to each user terminal, determine terminal to be paired;

According to the UIUC value and the unpaired message thereof of terminal to be paired, determine and be used for second terminal to be paired of matching with this terminal to be paired, and match;

After terminal to be paired pairing and separation of copulating moth cycle when arriving, according to the HARQ retransmission information of the terminal to be paired after matching, determine whether described terminal to be paired is carried out the separation of copulating moth processing.

A kind of up multiple-input and multiple-output MIMO self adaptation contrast means comprises time cycle trigger module, terminal deciding module to be paired, terminal matching module and separation of copulating moth processing module, wherein:

The time cycle trigger module is used for after receiving the incident that is used to trigger pairing and pairing cycle when arriving, and starts described terminal deciding module to be paired; And, in described terminal matching module each terminal to be paired is matched back and separation of copulating moth cycle when arriving, start the separation of copulating moth processing module;

Terminal deciding module to be paired is used for carrying out the MIMO ability and mixing automatic repeat requests HARQ retransmission information according to each user terminal, determines terminal to be paired;

The terminal matching module is used for up modulating-coding index UIUC value and unpaired message thereof according to terminal to be paired, determines to be used for second terminal to be paired of matching with this terminal to be paired, and matches;

The separation of copulating moth processing module is used for after terminal to be paired pairing and separation of copulating moth cycle when arriving, and according to the HARQ retransmission information of the terminal to be paired after the pairing, determines whether described terminal to be paired is carried out the separation of copulating moth processing.

In the embodiment of the invention, determine terminal to be paired, determine the second pairing terminal with its pairing and pairing according to the UIUC value of terminal to be paired and unpaired message thereof according to the MIMO ability and the HARQ retransmission information thereof of each user terminal; After terminal to be paired pairing and separation of copulating moth cycle when arriving,, determine whether this terminal to be paired is carried out the separation of copulating moth processing according to the HARQ retransmission information of the terminal to be paired after the pairing.Adopt technical solution of the present invention, on the one hand, because terminal to be paired is all determined according to each user terminal MIMO ability and HARQ retransmission information thereof, therefore guaranteed that terminal to be paired is the good pairing ability user terminal that has that selects, and, determine two terminals to be paired of pairing according to the UIUC value, thereby further improved pairing validity and success rate; On the other hand, after pairing, also need to determine whether that according to the HARQ retransmission information of terminal to be paired the terminal to be paired of pairing is carried out separation of copulating moth to be handled, thereby two terminals that are not suitable for matching can be carried out separation of copulating moth, after pairing, carry out Uplink MIMO and cause data transmission credibility difference and the low problem of system uplink throughput with two terminals avoiding improper pairing.

Description of drawings

Fig. 1 is the structural representation that two user terminals of available technology adopting are realized the Uplink MIMO technology;

Fig. 2 is the general flow chart of Uplink MIMO self adaptation pairing in the embodiment of the invention;

Fig. 3 is a Uplink MIMO self adaptation pairing flow chart in the embodiment of the invention;

Fig. 4 is a Uplink MIMO self adaptation separation of copulating moth flow chart in the embodiment of the invention;

Fig. 5 is not suitable for matching the flow chart of tabulation for process user terminal in the embodiment of the invention;

Fig. 6 is the structural representation of Uplink MIMO self adaptation contrast means in the embodiment of the invention.

Embodiment

Uplink MIMO is a kind of spatial multiplexing mode, and the correlation between two user terminals of execution Uplink MIMO is comparatively close, if before these two user terminals pairings, can calculate these two user terminals pairings correlation between it afterwards, it is zero then can selecting correlation or two less user terminals of correlation match, can improve pairing validity and success rate rate in this way, but also there is not technology can estimate two correlations after the terminal pairing at present, therefore, in order to improve pairing validity, success rate, and adopt existing matching method when carrying out Uplink MIMO in the solution prior art and the validity that causes matching is poor, the problem that link stability difference and data transmission credibility are lower, the embodiment of the invention provides a kind of self adaptation matching method, adopts the mode based on HARQ mechanism to realize the self adaptation pairing.

Below in conjunction with Figure of description the embodiment of the invention is described in detail.

Referring to Fig. 2, be the general flow chart of Uplink MIMO self adaptation pairing in the embodiment of the invention, this flow process comprises step:

Step 201, receive after the incident that is used to trigger pairing and pairing cycle of setting when arriving, carry out Uplink MIMO ability and HARQ retransmission information thereof, determine terminal to be paired according to each user terminal.

In this step, if user terminal is to have the not pairing user terminal of carrying out the Uplink MIMO ability, and when from the HARQ retransmission information of user terminal, determining packet total quantity that this user terminal sends surpassing first threshold in the pairing cycle, determine that then this user terminal is a terminal to be paired.

Step 202, at each terminal to be paired, with one of them terminal to be paired (representing with MS1) is example, UIUC (Uplink Interval Usage Code according to MS1, up modulating-coding index) value and unpaired message thereof, determine and be used for second terminal to be paired (representing) of matching with this MS1 with MS2, and pairing, Uplink MIMO is carried out in the pairing back.

In this step, the mode of determining second terminal to be paired is: choose a UIUC value and equate with the UIUC value of MS1 from other terminals to be paired, and, and should terminal to be paired be defined as second terminal to be paired not in the terminal to be paired in tabulating of being not suitable for of MS1 correspondence; Perhaps, the difference of choosing the UIUC value of a UIUC value and described terminal to be paired from other terminals to be paired is lower than the fluctuation threshold value of setting, and, and should terminal to be paired be defined as second terminal to be paired not in the terminal to be paired in tabulating of being not suitable for of MS1 correspondence.

Step 203, after MS1 pairing and separation of copulating moth cycle when arriving, according to MS1 and the corresponding respectively HARQ retransmission information of MS2, determine whether MS1 and MS2 are carried out the separation of copulating moth processing.

In this step, it is as follows to determine whether that MS1 and MS2 are carried out the mode that separation of copulating moth handles: determine that according to the HARQ retransmission information of MS1 MS1 sends the total quantity N2 of successful data packet number N1 and transmission packet at separation of copulating moth in the cycle, determine that according to the HARQ retransmission information of MS2 MS2 sends successful data packet number N3 and the total quantity N4 that sends packet at separation of copulating moth in the cycle, if N2 is or/and N4 when being lower than predefined second threshold value, then carries out the separation of copulating moth processing to this MS1 and MS2; If N2 and N4 are during more than or equal to predefined second threshold value, and N1/N2 and N3/N4 are higher than the proportion threshold value of setting, determine that then not needing that MS1, MS2 are carried out separation of copulating moth handles,, determine that then MS1, MS2 are carried out separation of copulating moth to be handled if N1/N2 is or/and N3/N4 is lower than the proportion threshold value of setting.

Preferably, if determine above-mentioned MS1 and MS2 are carried out separation of copulating moth when handling, for fear of when next or several pairing cycle arrive, attempt MS1 and MS2 again and match trial and cause the lower problem of matching efficiency, above-mentioned flow process also comprises:

Step 204, the sign of this MS2 is added into being not suitable in the pairing tabulation of MS1 correspondence, and the sign of MS1 is added into MS2 is pairing to be not suitable in the pairing tabulation.

Preferably, for adapting to the variation of network environment, at two terminals that are not suitable for matching before some, after after a while, the pairing of carrying out is once more between the two attempted, to guarantee that terminal to be paired has more optional pairing object, the part or all of content that is not suitable in the assortment table of each terminal correspondence to be paired to be deleted, above-mentioned flow process also comprises:

Step 205, after receiving the incident that is used to trigger pairing and be not suitable for the paired row list processing cycle when arriving, will have the pairing part or all of content deletion that is not suitable for matching in the tabulation of the user terminal of carrying out the Uplink MIMO ability; Be not suitable for the paired row list processing cycle greater than the pairing cycle.

With a concrete example pairing flow process in the technical solution of the present invention is made a more detailed description below, this example process as shown in Figure 3.

Referring to Fig. 3, be Uplink MIMO self adaptation pairing flow chart in the embodiment of the invention, this flow process is at each user terminal in the base station, and this flow process comprises step:

Step 300～301, as pairing cycle (the follow-up T that is called ₁When the cycle) arriving, judge whether the base station starts the pairing triggering and enable, if then execution in step 302, otherwise process ends.

In this step, base station initiated triggering enables and can realize in the following manner: can set the period of time T that triggers pairing by timer ₁(every T ₁Frame is a time cycle), timer started the pairing triggering and enabled when arriving each time cycle.

Step 302, judge whether this user terminal (representing with MS1) has the ability of carrying out Uplink MIMO, if having, then execution in step 303, otherwise, process ends.

In this step, each user terminal all needs to carry out capability negotiation when access base station, carry out the flag bit that the Uplink MIMO ability is revised user terminal according to whether having, as, flag bit is that 0 this user terminal of expression does not have the MIMO of execution ability, flag bit is that 1 this user terminal of expression has the MIMO of execution ability, and the mode of qualification is varied.Can determine according to the user terminal flag bit whether this user terminal has the MIMO of execution ability.

Step 303～304, judge whether this MS 1 matches, if, process ends then; If not, then determine that according to the HARQ retransmission information of this MS1 correspondence this MS1 is at T ₁The packet total quantity N that sends in cycle, and judge whether this N surpasses predefined threshold value N _m, if surpass, then execution in step 305, otherwise process ends.

In this step, determine that according to the HARQ retransmission information MS1 is at T ₁The mode of the total quantity N of transmission packet is as follows in cycle: if set maximum transmission times is M, determines that then MS1 is at T ₁The total quantity N of transmits data packets is in cycle:

$N=\underset{i=1}{\overset{M}{\mathrm{\Σ}}}(n_i\×i)+n_{M^{\′}}\×M$ Formula (5)

In the formula (5), N is that MS1 is at T ₁The total quantity of transmits data packets in cycle, the maximum transmission times of M for setting, n _iBe the quantity of data packets of MS1 by i transmission ability transmission success, n _{M '}Be quantity of data packets by unsuccessful transmission after M the transmission.

Preferably, if need to consider the size of packet, determine that MS1 is at T ₁The total quantity N of transmits data packets is in cycle:

$N=\underset{i=1}{\overset{M}{\mathrm{\Σ}}}(i\×\underset{j=1}{\overset{n_i}{\mathrm{\Σ}}}\left(m_{i\left(j\right)}\right))+M\×\underset{k=1}{\overset{n_{M^{\′}}}{\mathrm{\Σ}}}\left(m_k\right)$ Formula (6)

In the formula (6), N is that MS1 is at T ₁The total quantity of transmits data packets in cycle, the maximum transmission times of M for setting, n _iBe the data packet number of MS1 by i transmission ability transmission success, m _{I (j)}Be the size by j packet in the packet of i transmission ability transmission success, n _{M '}Be the quantity of data packets by unsuccessful transmission after M the transmission, m _kBe size by k packet in the packet of unsuccessful transmission after i the transmission.

Step 305, determine that this MS1 is a terminal to be paired, in this base station, choose the user terminal that satisfies condition in other terminals to be paired as the user terminal (representing) that matches with this MS1 with MS2, if can choose MS2, then execution in step 306, otherwise execution in step 307.

In this step, condition comprises: (1) user terminal is the current terminal unpaired to be paired of carrying out the Uplink MIMO ability that has; (2) the UIUC value of this user terminal equates with the UIUC value of MS2, or the difference of the UIUC value of MS1 and MS2 is in predefined fluctuation range; (3) MS1 and MS2 be not each other in corresponding being not suitable in the pairing tabulation of the other side.

Step 306, MS2 and this MS1 that selects matched, match processing, and by MS1 after the pairing and MS2 execution Uplink MIMO.

In this step, pairing is handled and to be comprised: the pairing flag bit to MS1 and MS2 is configured that (as matching flag bit is 0 respectively, represent that then this user terminal does not match, the pairing flag bit is that 1 this user terminal of expression matches), fill in the matching table information of MS1 and MS2 respectively, MS1 after restriction is matched, the UIUC value of MS2 is constant, by existing power control module according to MS1, MS2 UIUC value is separately adjusted corresponding MS1, the transmitting power of MS2, control CINR (the Carrier Interference Noise Ratio of MS1 and MS2 respectively, the carrier-in-interference noise ratio) at corresponding PCCI (the PCCINR Reference of separately UIUC value, power control reference value) in the scope, and the difference of CINR value that keeps both is in predefined CINR fluctuation range.

Step 307, with the statistical information zero clearing of MS1 and MS2.

In this step, statistical information comprises frame period statistical information, HARQ retransmission information etc.

Step 308, process ends.

Separation of copulating moth processing procedure in the clearer description technical solution of the present invention is described in detail the separation of copulating moth processing procedure with an idiographic flow below, and this flow process as shown in Figure 4.

Referring to Fig. 4, be Uplink MIMO self adaptation separation of copulating moth flow chart in the embodiment of the invention, at each user terminal in the base station, this flow process comprises step:

Step 401, monitoring base station start pairing and trigger and enable and the separation of copulating moth cycle (is used period T ₂Expression, every T ₂Frame is an one-period) arrive.

Step 402, judge whether user terminal (representing with MS1) has and carry out the Uplink MIMO ability that if having, then execution in step 403; Otherwise, process ends.

Step 403～404, judge whether this MS1 matches, if not, process ends then; Otherwise, determine that according to the HARQ retransmission information of this MS1 correspondence this MS1 is at T ₂Send successful data packet number N in cycle ₁With the packet total quantity N that sends ₂, and the band that matches with this MS1 pairing terminal (representing with MS2) is at T ₂Send successful data packet number N in cycle ₃With the packet total quantity N that sends ₄

In this step, determine that MS1, MS2 are at T ₂The packet total quantity that sends in cycle can calculate according to aforementioned formula (5) or formula (6), and can obtain according to following formula (7) for sending successful data packet number:

$N_1=\underset{i=1}{\overset{M}{\mathrm{\Σ}}}{n}_i$ Formula (7)

In the formula (7), N ₁For MS1 at T ₂Send successful data packet number in cycle, M is a maximum transmission times, n _iBe quantity of data packets by i transmission ability transmission success.

Preferably, if need to consider the size of packet, calculating the successful data packet number of transmission can calculate by following formula (8):

$N_1=\underset{i=1}{\overset{M}{\mathrm{\Σ}}}\left(\underset{j=1}{\overset{n_i}{\mathrm{\Σ}}}\left(m_{i\left(j\right)}\right)\right)$ Formula (8)

In the formula (8), N ₁For MS1 at T ₂Send successful data packet number in cycle, M is a maximum transmission times, n _iBe the quantity of data packets by i transmission ability transmission success, m _{I (j)}For transmitting the just size of j packet of transmission success by i time.

Step 405, judgment data bag total quantity N ₂Or N ₄Whether be lower than threshold value N _mIf,, then execution in step 407; Otherwise, execution in step 406.

Step 406, judgement N ₁/ N ₂Or N ₃/ N ₄Whether be lower than predefined ratio thresholding, if then execution in step 407; Otherwise, execution in step 408.

Ratio thresholding in this step is set according to network condition, sets by surveying as needs.

Step 407, this MS1 and MS2 are carried out separation of copulating moth handle, be added into respectively with MS1 with the sign of the user terminal MS2 of its pairing that the other side is pairing to be not suitable in the pairing tabulation.

In this step, separation of copulating moth also comprises handling: empty the MS1 matching table corresponding with MS2 respectively, cancellation is to the UIUC restriction of MS1 and MS2, respectively the transmitting power of MS1 and MS2 is adjusted into transmitting power separately before the pairing, revise respectively MS1, MS2 the pairing flag bit (as the pairing flag bit is 0, represent that then this user terminal does not match, the pairing flag bit is that 1 this user terminal of expression matches, and changes the flag bit 1 of this MS1, MS2 into 0).

Step 408, empty the separation of copulating moth statistical information of MS1 and MS2.

In this step, the separation of copulating moth statistical information comprises frame statistical information, T ₂The HARQ retransmission information of MS1, MS2 in cycle is (as user terminal at T ₂Send the total quantity of the packet of successful data packet number and transmission in cycle) etc.

Step 409, process ends.

Preferably, for adapting to the variation of network environment, at two user terminals that are not suitable for matching, after a period of time after carrying out the separation of copulating moth processing, perhaps both suitable pairings can be matched, to guarantee that terminal to be paired has more optional pairing object, the part or all of content that is not suitable in the assortment table of each user terminal in the base station is deleted.

With a concrete example flow process that content in the tabulation deletes that is not suitable for matching to the user terminal correspondence in the embodiment of the invention is described in detail below, this flow process as shown in Figure 5.

Referring to Fig. 5, for process user terminal correspondence in the embodiment of the invention be not suitable for matching the flow chart of list content, preestablish the base station initiated cycle that empties flow process to be set at T ₃(every T ₃Frame is an one-period, sets T ₃Much larger than T ₁), this flow process comprises step:

Step 500～501, handle period T when the matching table of setting that is not suitable for ₃During arrival, judge whether the base station has started the pairing triggering and enabled, if, execution in step 502; Otherwise, execution in step 504, process ends.

Step 502, determine and have the user terminal of carrying out the Uplink MIMO ability in the base station.

In this step, can determine user terminal, and from the base station, navigate to the user terminal that respectively has execution Uplink MIMO ability according to the sign of this user terminal according to the flag bit of user terminal with execution Uplink MIMO ability.

Step 503, the pairing all or part of content deletion that is not suitable for matching in tabulating of terminal that will have execution Uplink MIMO ability in the base station.

Step 504, process ends.

Based on the identical design of above-mentioned flow process, the embodiment of the invention also provides a kind of Uplink MIMO self adaptation contrast means, and this installs as shown in Figure 6.

Referring to Fig. 6, be the structural representation of Uplink MIMO self adaptation contrast means in the embodiment of the invention, this device comprises time cycle trigger module 61, terminal deciding module to be paired 62, terminal matching module 63 and separation of copulating moth processing module 64, wherein:

Time cycle trigger module 61 is used for after receiving the incident that is used to trigger pairing and pairing cycle when arriving, and starts terminal deciding module 62 to be paired; And, match back and separation of copulating moth cycle when arriving in 63 pairs of each terminals to be paired of terminal matching module, start separation of copulating moth processing module 64.

Terminal deciding module 62 to be paired is used for carrying out MIMO ability and HARQ retransmission information thereof according to each user terminal, determines terminal to be paired.

The mode that terminal deciding module 62 to be paired is determined terminal to be paired is as follows: if user terminal is to have the not pairing user terminal of carrying out the Uplink MIMO ability, and determine the packet total quantity that this user terminal sends according to the HARQ retransmission information of this user terminal in the pairing cycle and surpass first threshold, determine that then this user terminal is a terminal to be paired.

Terminal matching module 63 is used for up modulating-coding index UIUC value and unpaired message thereof according to terminal to be paired, determines to be used for second terminal to be paired of matching with this terminal to be paired, and matches.

The mode that terminal matching module 63 is determined second terminal to be paired is as follows: choose from other terminals to be paired that a UIUC value equates with the UIUC value of this terminal to be paired and not this terminal to be paired be not suitable for matching the terminal to be paired of tabulation, and should terminal to be paired be defined as second terminal to be paired; Perhaps, the difference of from other terminals to be paired, choosing the UIUC value of a UIUC value and described terminal to be paired be lower than the fluctuation threshold value of setting and not this terminal to be paired be not suitable for matching the terminal to be paired of tabulation, and should terminal to be paired be defined as second terminal to be paired.

Separation of copulating moth processing module 64 is used for after terminal to be paired pairing and separation of copulating moth cycle when arriving, and according to the HARQ retransmission information of the terminal to be paired after the pairing, determines whether described terminal to be paired is carried out the separation of copulating moth processing.

It is as follows that separation of copulating moth processing module 64 determines whether that this terminal to be paired is carried out the mode that separation of copulating moth handles: determine that according to the HARQ retransmission information of MS1 MS1 sends the total quantity N2 of successful data packet number N1 and transmission packet at separation of copulating moth in the cycle, determine that according to the HARQ retransmission information of MS2 MS2 sends successful data packet number N3 and the total quantity N4 that sends packet at separation of copulating moth in the cycle, if N2 is or/and N4 when being lower than predefined second threshold value, then carries out the separation of copulating moth processing to this MS1 and MS2; If N2 and N4 are during more than or equal to predefined second threshold value, and N1/N2 and N3/N4 are higher than the proportion threshold value of setting, determine that then not needing that MS1, MS2 are carried out separation of copulating moth handles,, determine that then MS1, MS2 are carried out separation of copulating moth to be handled if N1/N2 is or/and N3/N4 is lower than the proportion threshold value of setting.

The mode unanimity that the mode that separation of copulating moth processing module 64 is determined N1, N2, N3, N4 is described in the flow process does not as described above repeat them here.

Preferably, for avoiding when next pairing cycle arrives, once more should terminal to be paired and this second terminal to be paired match trial, improve matching efficiency and success rate, separation of copulating moth processing module 64 is determining that to this terminal to be paired carries out after separation of copulating moth handles, the sign of this terminal to be paired is added into second terminal to be paired is pairing to be not suitable in the pairing tabulation, and the sign of this second terminal to be paired is added into this terminal to be paired is pairing to be not suitable in the pairing tabulation.

Preferably, in order better to improve the optional scope of pairing of terminal to be paired, said apparatus also comprises and is not suitable for matching table processing module 65;

Described time cycle trigger module 61 is after receiving the incident that is used to trigger pairing and be not suitable for the paired row list processing cycle when arriving, and triggers the described paired row table handing module 65 that is not suitable for;

Be not suitable for matching table processing module 65, be used for when receiving trigger event, to have the pairing part or all of content deletion that is not suitable for matching in tabulating of the user terminal of carrying out the Uplink MIMO ability, be not suitable for the paired row list processing cycle greater than the described pairing cycle.

Time cycle trigger module 61 can be divided into by function:

First trigger element 611 is used for after receiving the incident that is used to trigger pairing and pairing cycle when arriving, and starts terminal deciding module 62 to be paired.

Second trigger element 612 is used for matching back and separation of copulating moth cycle when arriving in 63 pairs of each terminals to be paired of terminal matching module, starts separation of copulating moth processing module 64.

The 3rd trigger element 613 is used for after receiving the incident that is used to trigger pairing and is not suitable for the paired row list processing cycle when arriving, and triggers being not suitable for paired row table handing module 65.

Separation of copulating moth processing module 64 can be divided into by function:

Data packet number determining unit 641 determines that according to the HARQ retransmission information of this terminal to be paired this terminal to be paired sends successful data packet number N at separation of copulating moth in the cycle ₁With the total quantity N that sends packet ₂, and according to determining that with the HARQ retransmission information of second terminal to be paired of this terminal to be paired pairing this terminal to be paired sends successful data packet number N at separation of copulating moth in the cycle ₃With the total quantity N that sends packet ₄

Separation of copulating moth determining unit 642 is used for the N that determines according to the data packet number determining unit ₁, N ₂, N ₃, N ₄Determine and whether this terminal to be paired is carried out the separation of copulating moth processing.

Separation of copulating moth determining unit 642 determines whether this terminal to be paired is carried out mode that separation of copulating moth handles as previously mentioned, does not repeat them here.

Adding device 643, determine to this that in separation of copulating moth determining unit 642 terminal to be paired carries out after separation of copulating moth handles, the sign of this terminal to be paired is added into second terminal to be paired is pairing to be not suitable in the pairing tabulation, and the sign of second terminal to be paired is added into this terminal to be paired is pairing to be not suitable in the pairing tabulation.

In the embodiment of the invention, on the one hand, because terminal to be paired is all determined according to each user terminal MIMO ability and HARQ retransmission information thereof, therefore guaranteed that terminal to be paired is the good pairing ability user terminal that has that selects, and, determine two terminals to be paired of pairing according to the UIUC value, thereby further improved pairing validity and success rate; On the other hand, after pairing, also need to determine whether that according to the HARQ retransmission information of terminal to be paired the terminal to be paired of pairing is carried out separation of copulating moth to be handled, thereby two terminals that are not suitable for matching can be carried out separation of copulating moth, after pairing, carry out Uplink MIMO and cause data transmission credibility difference and the low problem of system uplink throughput with two terminals avoiding improper pairing; Again on the one hand, the pairing terminal is carried out separation of copulating moth when handling determining, two terminals of pairing are written to respectively the other side is pairing to be not suitable in the pairing tabulation, attempt the matching efficiency that is caused and be paired into the low problem of power to avoid again these two terminals being matched in a short time, thereby further improve pairing validity and success rate.

Obviously, those skilled in the art can carry out various changes and modification to the present invention and not break away from the spirit and scope of the present invention.Like this, if of the present invention these are revised and modification belongs within the scope of claim of the present invention and equivalent technologies thereof, then the present invention also is intended to comprise these changes and modification interior.

Claims (20)

1. a up multiple-input and multiple-output MIMO self adaptation matching method is characterized in that, comprising:

After receiving the incident that is used to trigger pairing and pairing cycle when arriving, carry out MIMO ability and mix automatic repeat requests HARQ retransmission information according to each user terminal, determine terminal to be paired;

According to the up modulating-coding index UIUC value and the unpaired message thereof of terminal to be paired, determine and be used for second terminal to be paired of matching with this terminal to be paired, and match;

After described terminal to be paired pairing and separation of copulating moth cycle when arriving,, determine whether described terminal to be paired is carried out the separation of copulating moth processing according to the HARQ retransmission information of described terminal to be paired.

2. the method for claim 1, it is characterized in that, describedly determine terminal to be paired, be specially: if user terminal is to have the not pairing user terminal of carrying out the Uplink MIMO ability, and determine the packet total quantity that this user terminal sends according to the HARQ retransmission information of this user terminal in the pairing cycle and surpass first threshold, determine that then this user terminal is a terminal to be paired.

3. the method for claim 1, it is characterized in that, be provided with the corresponding pairing tabulation that is not suitable for for each has the user terminal of carrying out the Uplink MIMO ability, describedly be not suitable for matching the sign that tabulation is used to store the user terminal that is not suitable for matching with described terminal to be paired;

Determine and be used for second terminal to be paired of matching with described terminal to be paired, be specially: the UIUC value of choosing a UIUC value and described terminal to be paired from other terminals to be paired equates and the terminal to be paired in tabulation is matched in corresponding being not suitable for of described terminal to be paired not, and should terminal to be paired be defined as second terminal to be paired; Perhaps, from other terminals to be paired, choose a UIUC value and the difference of the UIUC value of described terminal to be paired and be lower than the fluctuation threshold value of setting and the terminal to be paired in tabulation is matched in corresponding being not suitable for of described terminal to be paired not, and should terminal to be paired be defined as described second terminal to be paired.

4. method as claimed in claim 3, it is characterized in that, determine described terminal to be paired is carried out after separation of copulating moth handles, also comprise: the sign of described terminal to be paired is added into described second terminal to be paired is pairing to be not suitable in the pairing tabulation, and sign that will described second terminal to be paired is added into, and described terminal to be paired is pairing to be not suitable for during pairing tabulates.

5. as claim 3 or 4 described methods, it is characterized in that, also comprise: receive after the incident that is used to trigger pairing and be not suitable for the paired row list processing cycle when arriving, will have the pairing part or all of content deletion that is not suitable for matching in the tabulation of the user terminal of carrying out the Uplink MIMO ability; Describedly be not suitable for the paired row list processing cycle greater than the described pairing cycle.

6. the method for claim 1 is characterized in that, described determining whether carried out the separation of copulating moth processing to described terminal to be paired, is specially:

Determine that according to the HARQ retransmission information of described terminal to be paired described terminal to be paired sends packet at separation of copulating moth in the cycle total quantity is higher than the ratio that second threshold value and this terminal to be paired send successful data packet number and the total quantity of transmission packet and is higher than proportion threshold value, and, determine that according to the HARQ retransmission information of described second terminal to be paired described second terminal to be paired when separation of copulating moth sends ratio that the packet total quantity is higher than described second threshold value and sends successful data packet number and the total quantity that sends packet and is higher than described proportion threshold value in the cycle, then determines this terminal to be paired not to be carried out the separation of copulating moth processing; Otherwise, determine that this terminal to be paired is carried out separation of copulating moth to be handled.

7. method as claimed in claim 6 is characterized in that, determines that described terminal to be paired sends successful data packet number at separation of copulating moth in the cycle, obtain by following formula:

$N_1=\underset{i=1}{\overset{M}{\mathrm{\Σ}}}{n}_i$

In the formula, N ₁For described terminal to be paired sends successful data packet number at separation of copulating moth in the cycle, the maximum transmission times of M for setting, n _iBe the data packet number of described terminal to be paired by i transmission transmission success.

8. method as claimed in claim 6 is characterized in that, determines that described terminal to be paired sends successful data packet number at separation of copulating moth in the cycle, obtain by following formula:

$N_1=\underset{i=1}{\overset{M}{\mathrm{\Σ}}}\left(\underset{j=1}{\overset{n_i}{\mathrm{\Σ}}}\left(m_{i\left(j\right)}\right)\right)$

In the formula, N ₁For described terminal to be paired sends successful data packet number at separation of copulating moth in the cycle, the maximum transmission times of M for setting, n _iBe the quantity of data packets of described terminal to be paired by i transmission transmission success; m _{I (j)}For passing through to transmit for i time the size of j packet of transmission success.

9. as claim 7 or 8 described methods, it is characterized in that, determine that described terminal to be paired sends the total quantity of packet at separation of copulating moth in the cycle, obtain by following formula:

$N_2=\underset{i=1}{\overset{M}{\mathrm{\Σ}}}(n_i\×i)+n_{M^{\′}}\×M$

In the formula, N ₂Be the total quantity of described user terminal to be paired, the maximum transmission times of M for setting, n in separation of copulating moth transmits data packets in the cycle _iBe the quantity of data packets of described terminal to be paired by i transmission ability transmission success, n _{M '}Be the quantity of data packets of described terminal to be paired by unsuccessful transmission after M the transmission.

10. as claim 7 or 8 described methods, it is characterized in that, determine that described terminal to be paired sends the total quantity of packet at separation of copulating moth in the cycle, obtain by following formula:

$N_2=\underset{i=1}{\overset{M}{\mathrm{\Σ}}}(i\×\underset{j=1}{\overset{n_i}{\mathrm{\Σ}}}\left(m_{i\left(j\right)}\right))+M\×\underset{k=1}{\overset{n_{M^{\′}}}{\mathrm{\Σ}}}\left(m_k\right)$

In the formula, N ₂Be the total quantity of described terminal to be paired, the maximum transmission times of M for setting, n in separation of copulating moth transmits data packets in the cycle _iBe the data packet number of described terminal to be paired by i transmission ability transmission success, m _{I (j)}Be the size by j packet in the packet of i transmission ability transmission success, n _{M '}Be the quantity of data packets by unsuccessful transmission after M the transmission, m _kBe size by k packet in the packet of unsuccessful transmission after i the transmission.

11. a up multiple-input and multiple-output MIMO self adaptation contrast means is characterized in that, comprises time cycle trigger module, terminal deciding module to be paired, terminal matching module and separation of copulating moth processing module, wherein:

The time cycle trigger module is used for after receiving the incident that is used to trigger pairing and pairing cycle when arriving, and starts described terminal deciding module to be paired; And, in described terminal matching module each terminal to be paired is matched back and separation of copulating moth cycle when arriving, start the separation of copulating moth processing module;

Terminal deciding module to be paired is used for carrying out the MIMO ability and mixing automatic repeat requests HARQ retransmission information according to each user terminal, determines terminal to be paired;

The terminal matching module is used for up modulating-coding index UIUC value and unpaired message thereof according to terminal to be paired, determines to be used for second terminal to be paired of matching with this terminal to be paired, and matches;

The separation of copulating moth processing module is used for after described terminal to be paired pairing and separation of copulating moth cycle when arriving, and according to the HARQ retransmission information of described terminal to be paired, determines whether described terminal to be paired is carried out the separation of copulating moth processing.

12. device as claimed in claim 11, it is characterized in that, described terminal deciding module to be paired is determined terminal to be paired, be specially: if user terminal is to have the not pairing user terminal of carrying out the Uplink MIMO ability, and determine the packet total quantity that this user terminal sends according to the HARQ retransmission information of this user terminal in the pairing cycle and surpass first threshold, determine that then this user terminal is a terminal to be paired.

13. device as claimed in claim 11, it is characterized in that, have the user terminal of carrying out the Uplink MIMO ability at each and be provided with the corresponding pairing tabulation that is not suitable for, describedly be not suitable for matching the sign that tabulation is used to store the user terminal that is not suitable for matching with described terminal to be paired;

Described terminal matching module is determined and is used for second terminal to be paired of matching with described terminal to be paired, be specially: from other terminals to be paired, choose the terminal to be paired that a UIUC value equates with the UIUC value of described terminal to be paired, and should terminal to be paired be defined as second terminal to be paired; Perhaps, the difference of choosing the UIUC value of a UIUC value and described terminal to be paired from other terminals to be paired is lower than the terminal to be paired of the fluctuation threshold value of setting, and should terminal to be paired be defined as described second terminal to be paired.

14. device as claimed in claim 13, it is characterized in that, described separation of copulating moth processing module is further used for, after determining that described terminal to be paired being carried out separation of copulating moth handles, the sign of described terminal to be paired is added into described second terminal to be paired is pairing to be not suitable in the pairing tabulation, and sign that will described second terminal to be paired is added into, and described terminal to be paired is pairing to be not suitable for during pairing tabulates.

15. as claim 13 or 14 described devices, it is characterized in that, also comprise being not suitable for the matching table processing module;

Described time cycle trigger module is further used for, and after receiving the incident that is used to trigger pairing and be not suitable for the paired row list processing cycle when arriving, triggers the described paired row table handing module that is not suitable for;

Be not suitable for the matching table processing module, be used for when receiving trigger event, will have the pairing part or all of content deletion that is not suitable for matching in tabulating of the user terminal of carrying out the Uplink MIMO ability; Describedly be not suitable for the paired row list processing cycle greater than the described pairing cycle.

16. device as claimed in claim 11 is characterized in that, described separation of copulating moth processing module determines whether that described terminal to be paired is carried out separation of copulating moth to be handled, and is specially:

Determine that according to the HARQ retransmission information of described terminal to be paired described terminal to be paired sends packet at separation of copulating moth in the cycle total quantity is higher than the ratio that second threshold value and this terminal to be paired send successful data packet number and the total quantity of transmission packet and is higher than proportion threshold value, and, determine that according to the HARQ retransmission information of described second terminal to be paired described second terminal to be paired when separation of copulating moth sends ratio that the packet total quantity is higher than second threshold value and sends successful data packet number and the total quantity that sends packet and is higher than described proportion threshold value in the cycle, then determines this terminal to be paired not to be carried out the separation of copulating moth processing; Otherwise, determine that this terminal to be paired is carried out separation of copulating moth to be handled.

17. device as claimed in claim 16 is characterized in that, described separation of copulating moth processing module determines that described terminal to be paired sends successful data packet number at separation of copulating moth in the cycle, obtain by following formula:

$N_1=\underset{i=1}{\overset{M}{\mathrm{\Σ}}}{n}_i$

In the formula, N ₁For described terminal to be paired sends successful data packet number at separation of copulating moth in the cycle, the maximum transmission times of M for setting, n _iBe the data packet number of described terminal to be paired by i transmission transmission success.

18. device as claimed in claim 16 is characterized in that, described separation of copulating moth processing module determines that described terminal to be paired sends successful data packet number at separation of copulating moth in the cycle, obtain by following formula:

$N_1=\underset{i=1}{\overset{M}{\mathrm{\Σ}}}\left(\underset{j=1}{\overset{n_i}{\mathrm{\Σ}}}\left(m_{i\left(j\right)}\right)\right)$

In the formula, N ₁For described terminal to be paired sends successful data packet number at separation of copulating moth in the cycle, the maximum transmission times of M for setting, n _iBe the quantity of data packets of described terminal to be paired by i transmission transmission success; m _{I (j)}For passing through to transmit for i time the size of j packet of transmission success.

19., it is characterized in that described separation of copulating moth processing module determines that described terminal to be paired sends the total quantity of packet at separation of copulating moth in the cycle, obtain by following formula as claim 17 or 18 described devices:

$N_2=\underset{i=1}{\overset{M}{\mathrm{\Σ}}}(n_i\×i)+n_{M^{\′}}\×M$

In the formula, N ₂Be the total quantity of described user terminal to be paired, the maximum transmission times of M for setting, n in separation of copulating moth transmits data packets in the cycle _iBe the quantity of data packets of described terminal to be paired by i transmission ability transmission success, n _{M '}Be the quantity of data packets of described terminal to be paired by unsuccessful transmission after M the transmission.

20., it is characterized in that described separation of copulating moth processing module determines that described terminal to be paired sends the total quantity of packet at separation of copulating moth in the cycle, obtain by following formula as claim 17 or 18 described devices:

$N_2=\underset{i=1}{\overset{M}{\mathrm{\Σ}}}(i\×\underset{j=1}{\overset{n_i}{\mathrm{\Σ}}}\left(m_{i\left(j\right)}\right))+M\×\underset{k=1}{\overset{n_{M^{\′}}}{\mathrm{\Σ}}}\left(m_k\right)$

In the formula, N ₂Be the total quantity of described terminal to be paired, the maximum transmission times of M for setting, n in separation of copulating moth transmits data packets in the cycle _iBe the data packet number of described terminal to be paired by i transmission ability transmission success, m _{I (j)}Be the size by j packet in the packet of i transmission ability transmission success, n _{M '}Be the quantity of data packets by unsuccessful transmission after M the transmission, m _kBe size by k packet in the packet of unsuccessful transmission after i the transmission.

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