CN103891186A - Method and device for acquiring channel quality indicator value - Google Patents

Abstract

Embodiments of the present invention provide a method and a device for acquiring a channel quality indicator (CQI) value. The method comprises: acquiring a signal to interference plus noise ratio (SINR) and a multiple input multiple output (MIMO) mode of a user, the MIMO mode comprising a single-user multiple input multiple output (SU-MIMO) mode or a multi-user multiple input multiple output (MU-MIMO) mode; acquiring, according to the MIMO mode, an outer loop link adaptation (OLLA) adjustment amount corresponding to the MIMO mode of the user; and acquiring a CQI value of the user according to the SINR and the OLLA adjustment amount of the user. In the embodiments of the present invention, a base station distinguishes a specific MIMO mode of a user, and acquires an OLLA adjustment amount corresponding to the MIMO mode for each MIMO mode of the user, wherein the OLLA adjustment amount of the SINR has small fluctuation, so that the corresponding CQI value acquired according to the OLLA adjustment amount and the like has small changes, and a suitable modulation mode and a suitable coding rate can be selected to eliminate negative gains of user throughout.

Description

The acquisition methods of channel quality indicated value and device

Technical field

The embodiment of the present invention relates to wireless communication technology, relates in particular to a kind of acquisition methods and device of channel quality indicated value.

Background technology

Along with the development of wireless communication technology, industrial quarters and academia all, constantly go to improve the availability of frequency spectrum of whole network from dimensions such as time domain, frequency domain, He Ma territories, spatial domain, excavate potential gain.Wherein, multiple-input and multiple-output (Multiple Input Multiple Output, MIMO) method is a kind of under the prerequisite of transmitting power that does not increase transmitter, effectively improves the method for the availability of frequency spectrum.But the distance between the antenna of transmitting terminal and the antenna of receiving terminal is restricting the lifting of correlation and the spatial domain spectrum efficiency of mimo channel matrix self, and the factor such as size and cost of receiving terminal terminal itself also restricts the application of traditional MIMO method.

Multiuser MIMO (Multi-User MIMO, MU-MIMO) refers to the method that takies same channel transport service after two or more users match.In the method, the state of each pairing delivery of user traffic is dynamic change, and, in same Transmission Time Interval (Transmission Time Interval, TTI), user is dynamic change in MU-MIMO or SU-MIMO.

But, in multi-user MIMO system, if the spatial coherence of channel is higher between the user of pairing, in the time that time-domain is dynamically carried out MU-MIMO pairing transmission, can make Signal Interference and Noise Ratio (the Signal to Interference plus Noise Ratio of prior art, SINR) outer shroud link circuit self-adapting (Outer Loop Link Adaptation, OLLA) adjustment amount fluctuates very large, and then cause channel quality to indicate (Channel Quality Index, fluctuating CQI) is also very large, causes the negative gain of user throughput.

Summary of the invention

The invention provides a kind of acquisition methods and device of channel quality indicated value, when between the user who matches with solution, the spatial coherence of channel is higher, the concrete transmission state of not distinguishing user makes the OLLA adjustment amount of SINR fluctuate very large and then cause fluctuating of CQI also very large, causes the problem of the negative gain of user throughput.

First aspect, the embodiment of the present invention provides a kind of acquisition methods of channel quality indicated value, comprising:

Obtain user's Signal Interference and Noise Ratio and described user's multiple-input and multiple-output MIMO pattern, described MIMO pattern comprises alone family multiple-input and multiple-output SU-MIMO pattern or multi-user's multiple-input and multiple-output MU-MIMO pattern;

According to described MIMO pattern, obtain the outer shroud link circuit self-adapting OLLA adjustment amount corresponding with described user's described MIMO pattern;

According to described user's described Signal Interference and Noise Ratio and described OLLA adjustment amount, obtain described user's channel quality indicated value.

In the possible implementation of the first aspect first, described according to described MIMO pattern, before obtaining the OLLA adjustment amount corresponding with described user's described MIMO pattern, also comprise:

Obtain described user's transmitting state information, described transmitting state information is for showing the correct or error of transmission of described user's the transmission of packet;

Described according to described MIMO pattern, obtain the OLLA adjustment amount corresponding with described user's described MIMO pattern, comprising:

According to described transmitting state information and described MIMO pattern, obtain the OLLA adjustment amount corresponding with described transmitting state information and described MIMO pattern: if described user in described SU-MIMO pattern, obtains the OLLA adjustment amount corresponding with described SU-MIMO pattern and described transmitting state information; If described user in described MU-MIMO pattern, obtains the OLLA adjustment amount corresponding with described MU-MIMO pattern and described transmitting state information.

In conjunction with the possible implementation of the first of first aspect, in the possible implementation of the second, described according to described transmitting state information and described MIMO pattern, obtain the OLLA adjustment amount corresponding with described transmitting state information and described MIMO pattern, comprising:

Obtain OLLA adjustment amount corresponding to described MIMO pattern by mode independently; Or, obtain OLLA adjustment amount corresponding to described MIMO pattern by the mode of intersecting, wherein, described independently mode is only to use OLLA corresponding to described MIMO pattern to adjust parameter, and the mode of described intersection is that OLLA corresponding to the different MIMO patterns of cross-reference adjusts parameter.

In conjunction with the possible implementation of the second of first aspect, in the third possible implementation, described according to described transmitting state information and described MIMO pattern, obtain the OLLA adjustment amount corresponding with described transmitting state information and described MIMO pattern, be specially:

If being SU-MIMO pattern and described transmitting state information, described MIMO pattern shows that transmission is correct, obtains described OLLA adjustment amount according to following formula:

Δ' _{SINR_SU-MIMO}=Δ _{SINR_SU-MIMO}+S _SU-MIMO×BLER _{T_SU-MIMO}；

Show error of transmission if described MIMO pattern is SU-MIMO pattern and described transmitting state information, obtain described OLLA adjustment amount according to following formula:

Δ’ _{SINR_SU-MIMO}=Δ _{SINR_SU-MIMO}-S _SU-MIMO×（1.0-BLER _{T_SU-MIMO}）；

If being MU-MIMO pattern and described transmitting state information, described MIMO pattern shows that transmission is correct, obtains described OLLA adjustment amount according to following formula:

Δ' _{SINR_MU-MIMO}=Δ _{SINR_MU-MIMO}+S _MU-MIMO×BLER _{T_MU-MIMO}；

Show error of transmission if described MIMO pattern is MU-MIMO pattern and described transmitting state information, obtain described OLLA adjustment amount according to following formula:

Δ’ _{SINR_MU-MIMO}=Δ _{SINR_MU-MIMO}-S _MU-MIMO×（1.0-BLER _{T_MU-MIMO}）；

Wherein, target Block Error Rate corresponding to SU-MIMO pattern is BLER _{t_SU-MIMO}, target Block Error Rate corresponding to MU-MIMO pattern is BLER _{t_MU-MIMO}, and 0.0<BLER _{t_SU-MIMO}<1,0.0<BLER _{t_MU-MIMO}<1; Signal Interference and Noise Ratio adjustment amount corresponding to SU-MIMO pattern is Δ _{sINR_SU-MIMO}, Signal Interference and Noise Ratio adjustment amount corresponding to MU-MIMO pattern is Δ _{sINR_MU-MIMO}; Step-length corresponding to SU-MIMO pattern is S _sU-MIMO, step-length corresponding to MU-MIMO pattern is S _mU-MIMO; OLLA adjustment amount corresponding to SU-MIMO pattern is Δ ' _{sINR_SU-MIMO}, OLLA adjustment amount corresponding to MU-MIMO pattern is Δ ' _{sINR_MU-MIMO}.

In conjunction with the possible implementation of the second of first aspect, in the 4th kind of possible implementation, described according to described transmitting state information and described MIMO pattern, obtain the OLLA adjustment amount corresponding with described transmitting state information and described MIMO pattern, be specially:

If being SU-MIMO pattern and described transmitting state information, described MIMO pattern shows that transmission is correct, obtains described OLLA adjustment amount according to following formula:

${\mathrm{\&Delta;}}_{\mathrm{SINR}\_\mathrm{SU}-\mathrm{MIMO}}^{\&prime;}={\mathrm{\&Delta;}}_{\mathrm{SINR}\_\mathrm{SU}-\mathrm{MIMO}}+S_{\mathrm{SU}-\mathrm{MIMO}}\&times;{\mathrm{BLER}}_{T\_\mathrm{SU}-\mathrm{MIMO}}+\&PartialD;\&times;{\mathrm{\&Delta;}}_{\mathrm{SINR}\_\mathrm{MU}-\mathrm{MIMO}};$

Show error of transmission if described MIMO pattern is SU-MIMO pattern and described transmitting state information, obtain described OLLA adjustment amount according to following formula:

${\mathrm{\&Delta;}}_{\mathrm{SINR}\_\mathrm{SU}-\mathrm{MIMO}}^{\&prime;}={\mathrm{\&Delta;}}_{\mathrm{SINR}\_\mathrm{SU}-\mathrm{MIMO}}-S_{\mathrm{SU}-\mathrm{MIMO}}\&times;(1.0-{\mathrm{BLER}}_{T\_\mathrm{SU}-\mathrm{MIMO}})+\&PartialD;\&times;{\mathrm{\&Delta;}}_{\mathrm{SINR}\_\mathrm{MU}-\mathrm{MIMO}};$

If being MU-MIMO pattern and described transmitting state information, described MIMO pattern shows that transmission is correct, obtains described OLLA adjustment amount according to following formula:

${\mathrm{\&Delta;}}_{\mathrm{SINR}\_\mathrm{MU}-\mathrm{MIMO}}^{\&prime;}={\mathrm{\&Delta;}}_{\mathrm{SINR}\_\mathrm{MU}-\mathrm{MIMO}}+S_{\mathrm{MU}-\mathrm{MIMO}}\&times;{\mathrm{BLER}}_{T\_\mathrm{SU}-\mathrm{MIMO}}+\&PartialD;\&times;{\mathrm{\&Delta;}}_{\mathrm{SINR}\_\mathrm{SU}-\mathrm{MIMO}};$

Show error of transmission if described MIMO pattern is MU-MIMO pattern and described transmitting state information, obtain described OLLA adjustment amount according to following formula:

${\mathrm{\&Delta;}}_{\mathrm{SINR}\_\mathrm{MU}-\mathrm{MIMO}}^{\&prime;}={\mathrm{\&Delta;}}_{\mathrm{SINR}\_\mathrm{MU}-\mathrm{MIMO}}-S_{\mathrm{MU}-\mathrm{MIMO}}\&times;(1.0-{\mathrm{BLER}}_{T\_\mathrm{MU}-\mathrm{MIMO}})+\&PartialD;\&times;{\mathrm{\&Delta;}}_{\mathrm{SINR}\_\mathrm{SU}-\mathrm{MIMO}};$

Wherein, target Block Error Rate corresponding to SU-MIMO pattern is BLER _{t_SU-MIMO}, target Block Error Rate corresponding to MU-MIMO pattern is BLER _{t_MU-MIMO}, and 0.0<BLER _{t_SU-MIMO}<1,0.0<BLER _{t_MU-MIMO}<1; Signal Interference and Noise Ratio adjustment amount corresponding to SU-MIMO pattern is Δ _{sINR_SU-MIMO}, Signal Interference and Noise Ratio adjustment amount corresponding to MU-MIMO pattern is Δ _{sINR_MU-MIMO}; Step-length corresponding to SU-MIMO pattern is S _sU-MIMO, step-length corresponding to MU-MIMO pattern is S _mU-MIMO; OLLA adjustment amount corresponding to SU-MIMO pattern is Δ ' _{sINR_SU-MIMO}, OLLA adjustment amount corresponding to MU-MIMO pattern is Δ ' _{sINR_MU-MIMO},

for adjusting the factor, and

Second aspect, the embodiment of the present invention provides a kind of acquisition device of channel quality indicated value, comprising:

The first acquisition module, for obtaining user's Signal Interference and Noise Ratio and described user's multiple-input and multiple-output MIMO pattern, described MIMO pattern comprises alone family multiple-input and multiple-output SU-MIMO pattern or multi-user's multiple-input and multiple-output MU-MIMO pattern;

The second acquisition module, for the described MIMO pattern getting according to described the first acquisition module, obtains the outer shroud link circuit self-adapting OLLA adjustment amount corresponding with described user's described MIMO pattern;

The 3rd acquisition module, the described OLLA adjustment amount getting for the described Signal Interference and Noise Ratio that gets according to described the first acquisition module and described the second acquisition module, obtains described user's channel quality indicated value.

In the possible implementation of the first aspect second, described device also comprises:

The 4th acquisition module, for obtaining described user's transmitting state information, described transmitting state information is for showing the correct or error of transmission of described user's the transmission of packet;

Described the second acquisition module, the described MIMO pattern also getting for the described transmitting state information that gets according to described the 4th acquisition module and described the first acquisition module, obtain the OLLA adjustment amount corresponding with described transmitting state information and described MIMO pattern: if described user in described SU-MIMO pattern, obtains the OLLA adjustment amount corresponding with described SU-MIMO pattern and described transmitting state information; If described user in described MU-MIMO pattern, obtains the OLLA adjustment amount corresponding with described MU-MIMO pattern and described transmitting state information.

In conjunction with the possible implementation of the first of second aspect, in the possible implementation of the second, described the second acquisition module, also for:

Obtain OLLA adjustment amount corresponding to described MIMO pattern by mode independently; Or, obtain OLLA adjustment amount corresponding to described MIMO pattern by the mode of intersecting, wherein, described independently mode is only to use OLLA corresponding to described MIMO pattern to adjust parameter, and the mode of described intersection is that OLLA corresponding to the different MIMO patterns of cross-reference adjusts parameter.

In conjunction with the possible implementation of the second of second aspect, in the third possible implementation, described the second acquisition module, specifically for:

If being SU-MIMO pattern and described transmitting state information, described MIMO pattern shows that transmission is correct, obtains described OLLA adjustment amount according to following formula:

Δ' _{SINR_SU-MIMO}=Δ _{SINR_SU-MIMO}+S _SU-MIMO×BLER _{T_SU-MIMO}；

Show error of transmission if described MIMO pattern is SU-MIMO pattern and described transmitting state information, obtain described OLLA adjustment amount according to following formula:

Δ’ _{SINR_SU-MIMO}=Δ _{SINR_SU-MIMO}-S _SU-MIMO×（1.0-BLER _{T_SU-MIMO}）；

If being MU-MIMO pattern and described transmitting state information, described MIMO pattern shows that transmission is correct, obtains described OLLA adjustment amount according to following formula:

Δ' _{SINR_MU-MIMO}=Δ _{SINR_MU-MIMO}+S _MU-MIMO×BLER _{T_MU-MIMO}；

Show error of transmission if described MIMO pattern is MU-MIMO pattern and described transmitting state information, obtain described OLLA adjustment amount according to following formula:

Δ’ _{SINR_MU-MIMO}=Δ _{SINR_MU-MIMO}-S _MU-MIMO×（1.0-BLER _{T_MU-MIMO}）；

Wherein, target Block Error Rate corresponding to SU-MIMO pattern is BLER _{t_SU-MIMO}, target Block Error Rate corresponding to MU-MIMO pattern is BLER _{t_MU-MIMO}, and 0.0<BLER _{t_SU-MIMO}<1,0.0<BLER _{t_MU-MIMO}<1; Signal Interference and Noise Ratio adjustment amount corresponding to SU-MIMO pattern is Δ _{sINR_SU-MIMO}, Signal Interference and Noise Ratio adjustment amount corresponding to MU-MIMO pattern is Δ _{sINR_MU-MIMO}; Step-length corresponding to SU-MIMO pattern is S _sU-MIMO, step-length corresponding to MU-MIMO pattern is S _mU-MIMO; OLLA adjustment amount corresponding to SU-MIMO pattern is Δ ' _{sINR_SU-MIMO}, OLLA adjustment amount corresponding to MU-MIMO pattern is Δ ' _{sINR_MU-MIMO}.

In conjunction with the possible implementation of the second of second aspect, in the 4th kind of possible implementation, described the second acquisition module, specifically for:

If being SU-MIMO pattern and described transmitting state information, described MIMO pattern shows that transmission is correct, obtains described OLLA adjustment amount according to following formula:

${\mathrm{\&Delta;}}_{\mathrm{SINR}\_\mathrm{SU}-\mathrm{MIMO}}^{\&prime;}={\mathrm{\&Delta;}}_{\mathrm{SINR}\_\mathrm{SU}-\mathrm{MIMO}}+S_{\mathrm{SU}-\mathrm{MIMO}}\&times;{\mathrm{BLER}}_{T\_\mathrm{SU}-\mathrm{MIMO}}+\&PartialD;\&times;{\mathrm{\&Delta;}}_{\mathrm{SINR}\_\mathrm{MU}-\mathrm{MIMO}};$

Show error of transmission if described MIMO pattern is SU-MIMO pattern and described transmitting state information, obtain described OLLA adjustment amount according to following formula:

${\mathrm{\&Delta;}}_{\mathrm{SINR}\_\mathrm{SU}-\mathrm{MIMO}}^{\&prime;}={\mathrm{\&Delta;}}_{\mathrm{SINR}\_\mathrm{SU}-\mathrm{MIMO}}-S_{\mathrm{SU}-\mathrm{MIMO}}\&times;(1.0-{\mathrm{BLER}}_{T\_\mathrm{SU}-\mathrm{MIMO}})+\&PartialD;\&times;{\mathrm{\&Delta;}}_{\mathrm{SINR}\_\mathrm{MU}-\mathrm{MIMO}};$

If being MU-MIMO pattern and described transmitting state information, described MIMO pattern shows that transmission is correct, obtains described OLLA adjustment amount according to following formula:

${\mathrm{\&Delta;}}_{\mathrm{SINR}\_\mathrm{MU}-\mathrm{MIMO}}^{\&prime;}={\mathrm{\&Delta;}}_{\mathrm{SINR}\_\mathrm{MU}-\mathrm{MIMO}}+S_{\mathrm{MU}-\mathrm{MIMO}}\&times;{\mathrm{BLER}}_{T\_\mathrm{SU}-\mathrm{MIMO}}+\&PartialD;\&times;{\mathrm{\&Delta;}}_{\mathrm{SINR}\_\mathrm{SU}-\mathrm{MIMO}};$

Show error of transmission if described MIMO pattern is MU-MIMO pattern and described transmitting state information, obtain described OLLA adjustment amount according to following formula:

${\mathrm{\&Delta;}}_{\mathrm{SINR}\_\mathrm{MU}-\mathrm{MIMO}}^{\&prime;}={\mathrm{\&Delta;}}_{\mathrm{SINR}\_\mathrm{MU}-\mathrm{MIMO}}-S_{\mathrm{MU}-\mathrm{MIMO}}\&times;(1.0-{\mathrm{BLER}}_{T\_\mathrm{MU}-\mathrm{MIMO}})+\&PartialD;\&times;{\mathrm{\&Delta;}}_{\mathrm{SINR}\_\mathrm{SU}-\mathrm{MIMO}};$

Wherein, target Block Error Rate corresponding to SU-MIMO pattern is BLER _{t_SU-MIMO}, target Block Error Rate corresponding to MU-MIMO pattern is BLER _{t_MU-MIMO}, and 0.0<BLER _{t_SU-MIMO}<1,0.0<BLER _{t_MU-MIMO}<1; Signal Interference and Noise Ratio adjustment amount corresponding to SU-MIMO pattern is Δ _{sINR_SU-MIMO}, Signal Interference and Noise Ratio adjustment amount corresponding to MU-MIMO pattern is Δ _{sINR_MU-MIMO}; Step-length corresponding to SU-MIMO pattern is S _sU-MIMO, step-length corresponding to MU-MIMO pattern is S _mU-MIMO; OLLA adjustment amount corresponding to SU-MIMO pattern is Δ ' _{sINR_SU-MIMO}, OLLA adjustment amount corresponding to MU-MIMO pattern is Δ ' _{sINR_MU-MIMO},

for adjusting the factor, and

The 3rd aspect, the embodiment of the present invention provides a kind of acquisition device of channel quality indicated value, comprises memory and processor, described memory store instruction, described processor is carried out described instruction, for:

Obtain user's Signal Interference and Noise Ratio and described user's multiple-input and multiple-output MIMO pattern, described MIMO pattern comprises alone family multiple-input and multiple-output SU-MIMO pattern or multi-user's multiple-input and multiple-output MU-MIMO pattern, according to described MIMO pattern, obtain the outer shroud link circuit self-adapting OLLA adjustment amount corresponding with described user's described MIMO pattern, according to described user's described Signal Interference and Noise Ratio and described OLLA adjustment amount, obtain described user's channel quality indicated value.

In the possible implementation of the first aspect the 3rd, described processor is carried out described instruction, also for:

Obtain described user's transmitting state information, described transmitting state information is for showing the correct or error of transmission of described user's the transmission of packet, according to described transmitting state information and described MIMO pattern, obtain the OLLA adjustment amount corresponding with described transmitting state information and described MIMO pattern: if described user in described SU-MIMO pattern, obtains the OLLA adjustment amount corresponding with described SU-MIMO pattern and described transmitting state information; If described user in described MU-MIMO pattern, obtains the OLLA adjustment amount corresponding with described MU-MIMO pattern and described transmitting state information.

In conjunction with the possible implementation of the first of the 3rd aspect, in the possible implementation of the second, described processor is carried out described instruction, also for:

Obtain OLLA adjustment amount corresponding to described MIMO pattern by mode independently; Or, obtain OLLA adjustment amount corresponding to described MIMO pattern by the mode of intersecting, wherein, described independently mode is only to use OLLA corresponding to described MIMO pattern to adjust parameter, and the mode of described intersection is that OLLA corresponding to the different MIMO patterns of cross-reference adjusts parameter.

In conjunction with the possible implementation of the second of the 3rd aspect, in the third possible implementation, described processor is carried out described instruction, specifically for:

If being SU-MIMO pattern and described transmitting state information, described MIMO pattern shows that transmission is correct, obtains described OLLA adjustment amount according to following formula:

Δ' _{SINR_SU-MIMO}=Δ _{SINR_SU-MIMO}+S _SU-MIMO×BLER _{T_SU-MIMO}；

Show error of transmission if described MIMO pattern is SU-MIMO pattern and described transmitting state information, obtain described OLLA adjustment amount according to following formula:

Δ’ _{SINR_SU-MIMO}=Δ _{SINR_SU-MIMO}-S _SU-MIMO×（1.0-BLER _{T_SU-MIMO}）；

If being MU-MIMO pattern and described transmitting state information, described MIMO pattern shows that transmission is correct, obtains described OLLA adjustment amount according to following formula:

Δ' _{SINR_MU-MIMO}=Δ _{SINR_MU-MIMO}+S _MU-MIMO×BLER _{T_MU-MIMO}；

Show error of transmission if described MIMO pattern is MU-MIMO pattern and described transmitting state information, obtain described OLLA adjustment amount according to following formula:

Δ’ _{SINR_MU-MIMO}=Δ _{SINR_MU-MIMO}-S _MU-MIMO×（1.0-BLER _{T_MU-MIMO}）；

Wherein, target Block Error Rate corresponding to SU-MIMO pattern is BLER _{t_SU-MIMO}, target Block Error Rate corresponding to MU-MIMO pattern is BLER _{t_MU-MIMO}, and 0.0<BLER _{t_SU-MIMO}<1,0.0<BLER _{t_MU-MIMO}<1; Signal Interference and Noise Ratio adjustment amount corresponding to SU-MIMO pattern is Δ _{sINR_SU-MIMO}, Signal Interference and Noise Ratio adjustment amount corresponding to MU-MIMO pattern is Δ _{sINR_MU-MIMO}; Step-length corresponding to SU-MIMO pattern is S _sU-MIMO, step-length corresponding to MU-MIMO pattern is S _mU-MIMO; OLLA adjustment amount corresponding to SU-MIMO pattern is Δ ' _{sINR_SU-MIMO}, OLLA adjustment amount corresponding to MU-MIMO pattern is Δ ' _{sINR_MU-MIMO}.

In conjunction with the possible implementation of the second of the 3rd aspect, in the 4th kind of possible implementation, described processor is carried out described instruction, specifically for:

If being SU-MIMO pattern and described transmitting state information, described MIMO pattern shows that transmission is correct, obtains described OLLA adjustment amount according to following formula:

${\mathrm{\&Delta;}}_{\mathrm{SINR}\_\mathrm{SU}-\mathrm{MIMO}}^{\&prime;}={\mathrm{\&Delta;}}_{\mathrm{SINR}\_\mathrm{SU}-\mathrm{MIMO}}+S_{\mathrm{SU}-\mathrm{MIMO}}\&times;{\mathrm{BLER}}_{T\_\mathrm{SU}-\mathrm{MIMO}}+\&PartialD;\&times;{\mathrm{\&Delta;}}_{\mathrm{SINR}\_\mathrm{MU}-\mathrm{MIMO}};$

Show error of transmission if described MIMO pattern is SU-MIMO pattern and described transmitting state information, obtain described OLLA adjustment amount according to following formula:

${\mathrm{\&Delta;}}_{\mathrm{SINR}\_\mathrm{SU}-\mathrm{MIMO}}^{\&prime;}={\mathrm{\&Delta;}}_{\mathrm{SINR}\_\mathrm{SU}-\mathrm{MIMO}}-S_{\mathrm{SU}-\mathrm{MIMO}}\&times;(1.0-{\mathrm{BLER}}_{T\_\mathrm{SU}-\mathrm{MIMO}})+\&PartialD;\&times;{\mathrm{\&Delta;}}_{\mathrm{SINR}\_\mathrm{MU}-\mathrm{MIMO}};$

If being MU-MIMO pattern and described transmitting state information, described MIMO pattern shows that transmission is correct, obtains described OLLA adjustment amount according to following formula:

${\mathrm{\&Delta;}}_{\mathrm{SINR}\_\mathrm{MU}-\mathrm{MIMO}}^{\&prime;}={\mathrm{\&Delta;}}_{\mathrm{SINR}\_\mathrm{MU}-\mathrm{MIMO}}+S_{\mathrm{MU}-\mathrm{MIMO}}\&times;{\mathrm{BLER}}_{T\_\mathrm{SU}-\mathrm{MIMO}}+\&PartialD;\&times;{\mathrm{\&Delta;}}_{\mathrm{SINR}\_\mathrm{SU}-\mathrm{MIMO}};$

Show error of transmission if described MIMO pattern is MU-MIMO pattern and described transmitting state information, obtain described OLLA adjustment amount according to following formula:

${\mathrm{\&Delta;}}_{\mathrm{SINR}\_\mathrm{MU}-\mathrm{MIMO}}^{\&prime;}={\mathrm{\&Delta;}}_{\mathrm{SINR}\_\mathrm{MU}-\mathrm{MIMO}}-S_{\mathrm{MU}-\mathrm{MIMO}}\&times;(1.0-{\mathrm{BLER}}_{T\_\mathrm{MU}-\mathrm{MIMO}})+\&PartialD;\&times;{\mathrm{\&Delta;}}_{\mathrm{SINR}\_\mathrm{SU}-\mathrm{MIMO}};$

Wherein, target Block Error Rate corresponding to SU-MIMO pattern is BLER _{t_SU-MIMO}, target Block Error Rate corresponding to MU-MIMO pattern is BLER _{t_MU-MIMO}, and 0.0<BLER _{t_SU-MIMO}<1,0.0<BLER _{t_MU-MIMO}<1; Signal Interference and Noise Ratio adjustment amount corresponding to SU-MIMO pattern is Δ _{sINR_SU-MIMO}, Signal Interference and Noise Ratio adjustment amount corresponding to MU-MIMO pattern is Δ _{sINR_MU-MIMO}; Step-length corresponding to SU-MIMO pattern is S _sU-MIMO, step-length corresponding to MU-MIMO pattern is S _mU-MIMO; OLLA adjustment amount corresponding to SU-MIMO pattern is Δ ' _{sINR_SU-MIMO}, OLLA adjustment amount corresponding to MU-MIMO pattern is Δ ' _{sINR_MU-MIMO},

for adjusting the factor, and

The acquisition methods of the channel quality indicated value that the embodiment of the present invention provides and device, by obtain user SINR and and judge this user's MIMO pattern, obtain the OLLA adjustment amount corresponding with this MIMO pattern according to MIMO pattern, then according to the SINR and the OLLA adjustment amount that get, obtain this user's CQI value.The acquisition methods of the channel quality indicated value that the embodiment of the present invention provides, the concrete MIMO pattern of user is distinguished in base station, each MIMO pattern for user is obtained the OLLA adjustment amount corresponding with this MIMO pattern, the fluctuation of the OLLA adjustment amount of SINR is less, make the variation of the corresponding CQI value of obtaining according to this OLLA adjustment amount etc. also less, and then select suitable modulation system and code rate to eliminate the negative gain of user throughput.

Accompanying drawing explanation

In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is 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 the flow chart of the acquisition methods embodiment mono-of channel quality indicated value of the present invention;

Fig. 2 is the flow chart of the acquisition methods embodiment bis-of channel quality indicated value of the present invention;

Fig. 3 is the flow chart of the acquisition methods embodiment tri-of channel quality indicated value of the present invention;

Fig. 4 is that in channel quality indicated value acquisition methods of the present invention, Block Error Rate is the mapping schematic diagram of CQI value and Signal Interference and Noise Ratio and the OLLA adjustment amount sum of 0.1 o'clock;

Fig. 5 is the flow chart of the acquisition methods embodiment tetra-of channel quality indicated value of the present invention;

The configuration diagram of the acquisition device embodiment mono-of Fig. 6 channel quality indicated value of the present invention;

The configuration diagram of the acquisition device embodiment bis-of Fig. 7 channel quality indicated value of the present invention;

The configuration diagram of the acquisition device embodiment tri-of Fig. 8 channel quality indicated value of the present invention.

Embodiment

For making object, technical scheme and the advantage of the embodiment of the present invention clearer, below in conjunction with the accompanying drawing in the embodiment of the present invention, technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment in the present invention, those of ordinary skills, not making the every other embodiment obtaining under creative work prerequisite, belong to the scope of protection of the invention.

Fig. 1 is the flow chart of the acquisition methods embodiment mono-of channel quality indicated value of the present invention.As shown in Figure 1, the method comprises:

Step 101: obtain user's Signal Interference and Noise Ratio and user's multiple-input and multiple-output MIMO pattern, MIMO pattern comprises alone family multiple-input and multiple-output SU-MIMO pattern or multi-user's multiple-input and multiple-output MU-MIMO pattern.

Base station obtains this user's Signal Interference and Noise Ratio.Wherein, SINR obtains by measuring measuring reference signals (Sound Reference Signal, SRS), demodulated pilot signal (Demodulation Reference Signal, DMRS) or transmission channel being carried out to the processing such as filtering.

In addition, the service condition according to user to transmission channel etc., base station judges this user's MIMO pattern.For example, belong to same user if the data flow in same time/frequency source block in transmission channel is judged in base station, this user is in alone family multiple-input and multiple-output SU-MIMO pattern; Otherwise this user is in multi-user's multiple-input and multiple-output MU-MIMO pattern.

It should be noted that, above-mentioned base station obtains user's Signal Interference and Noise Ratio and judges that the order of user's MIMO pattern can carry out at random, there is no strict restriction.

Step 102: according to MIMO pattern, obtain the OLLA adjustment amount corresponding with user's MIMO pattern.

In this step, base station, according to getting user MIMO pattern, obtains the OLLA adjustment amount corresponding with MIMO pattern.For example, base station can, according to the target Block Error Rate corresponding with this MIMO pattern, Signal Interference and Noise Ratio adjustment amount and step-length, obtain the OLLA adjustment amount corresponding with this MIMO pattern.

Step 103: according to Signal Interference and Noise Ratio and OLLA adjustment amount, obtain user's channel quality indicated value.

CQI concordance list, according to the Signal Interference and Noise Ratio and the OLLA adjustment amount that get, is searched to find corresponding signal quality indication (Channel Quality Index, CQI) value by look-up table in base station.Agreement regulation, CQI value has 15 kinds, and each CQI value is the index value in CQI indexed table, the corresponding a kind of modulation system of each index value and a kind of code rate.Concrete, can be referring to table 1, the CQI concordance list that table 1 provides for the embodiment of the present invention.

Table 1CQI concordance list

CQI index	Modulation system	Code rate
			1	QPSK	0.1523
2	QPSK	0.2344
			3	QPSK	0.377
4	QPSK	0.6016
			5	QPSK	0.877
6	QPSK	1.1758
			7	16QAM	1.4766
8	16QAM	1.9141
			9	16QAM	2.4063
10	64QAM	2.7305
			11	64QAM	3.3223
12	64QAM	3.9023
			13	64QAM	4.5234
14	64QAM	5.1152
			15	64QAM	5.5547

As shown in table 1, in 15, modulation system corresponding to CQI value comprises orthogonal phase shift modulation (Quadrature Phase Shift Keying, QPSK), 16 quadrature amplitude modulation (16Quadrature Amplitude Modulation, 16QAM) and 64 quadrature amplitude modulation (64Quadrature Amplitude Modulation, 64QAM), and the corresponding a kind of code rate of each index value.That is to say, can get corresponding modulation system and code rate after getting corresponding CQI value.

The acquisition methods of the channel quality indicated value that the present embodiment provides, by obtain user SINR and and judge this user's MIMO pattern, obtain the OLLA adjustment amount corresponding with this MIMO pattern according to MIMO pattern, then according to the SINR and the OLLA adjustment amount that get, obtain this user's CQI value.The acquisition methods of the channel quality indicated value that the present embodiment provides, the concrete MIMO pattern of user is distinguished in base station, each MIMO pattern for user is obtained the OLLA adjustment amount corresponding with this MIMO pattern, the fluctuation of the OLLA adjustment amount of SINR is less, make the variation of the corresponding CQI value of obtaining according to this OLLA adjustment amount etc. also less, and then select suitable modulation system and code rate to eliminate the negative gain of user throughput.

In the acquisition methods embodiment bis-of channel quality indicated value of the present invention, before base station obtains the OLLA adjustment amount corresponding with user's MIMO pattern according to MIMO pattern, also comprise: the transmitting state information that obtains user, transmitting state information is for showing the correct or error of transmission of user's the transmission of packet, concrete, please refer to Fig. 2.

Fig. 2 is the flow chart of the acquisition methods embodiment bis-of channel quality indicated value of the present invention.As shown in Figure 2, the method comprises:

Step 201: base station obtains user's SINR and transmitting state information.

Base station obtains user's SINR and transmitting state information, and wherein, transmitting state information is for showing the correct or error of transmission of the transmission of this user data package.For example, obtain this user's first biography cyclic redundancy check (CRC) (Cyclic Redundancy Check, CRC) historical information, judge according to the historical information of CRC whether user data package transmits correct or error of transmission, for example continuous N time CRC is correct, judges that user data package transmission is correct, and user's transmission state is correct, otherwise judge user data package error of transmission, user's transmission state is mistake.Judge according to the historical information of CRC whether user data package is transmitted correctly or the error of transmission embodiment of the present invention does not limit.

Step 202: base station judges that the current MIMO pattern of user is SU-MIMO pattern or MU-MIMO pattern.

Concrete, can, referring to Fig. 1 step 101, repeat no more herein.

Step 203: base station obtains user's OLLA adjustment amount corresponding to SU-MIMO pattern.

If user is judged in SU-MIMO pattern in base station, obtain the OLLA adjustment amount corresponding with user's SU-MIMO pattern and transmitting state information.

Step 204: base station obtains user's CQI corresponding to SU-MIMO pattern according to SINR and OLLA adjustment amount.

Step 205: base station obtains user's OLLA adjustment amount corresponding to MU-MIMO pattern.

If user is judged in MU-MIMO pattern in base station, obtain the OLLA adjustment amount corresponding with user's MU-MIMO pattern and transmitting state information.

Step 206: base station obtains user's CQI corresponding to MU-MIMO pattern according to SINR and OLLA adjustment amount.

It should be noted that, in the present embodiment, base station obtains user's Signal Interference and Noise Ratio, transmitting state information and judges that the order of user's MIMO pattern can carry out at random, there is no strict restriction.Getting after user's MIMO pattern and transmitting state information, according to transmitting state information and MIMO pattern, obtain the OLLA adjustment amount corresponding with transmitting state information and MIMO pattern.That is, if user in SU-MIMO pattern, obtains the OLLA adjustment amount corresponding with SU-MIMO pattern; Otherwise, obtain the OLLA adjustment amount corresponding with MU-MIMO pattern.

Concrete, according to user's transmitting state information and MIMO pattern, obtain the OLLA adjustment amount corresponding with this transmitting state information and this MIMO pattern, can obtain OLLA adjustment amount corresponding to MIMO pattern or obtain OLLA adjustment amount corresponding to MIMO pattern by the mode of intersecting by mode independently.

Independently mode, only OLLA corresponding to user's MIMO pattern of living in adjusts parameter, the OLLA corresponding according to the SINR getting, transmitting state information and this MIMO pattern adjusts parameter, as Block Error Rate, Signal Interference and Noise Ratio adjustment amount and default step-length etc. are obtained the OLLA adjustment amount of this MIMO pattern and then obtain CQI value, for example, and take MIMO pattern as MU-MIMO pattern is as example, adopt when independently mode is obtained OLLA adjustment amount, only use OLLA corresponding to MU-MIMO pattern to adjust parameter.

The mode of intersecting, OLLA corresponding to the different MIMO patterns of user adjusts parameter.The mode of intersecting not only considers that OLLA corresponding to user's MIMO pattern of living in adjusts parameter, also need to consider that OLLA corresponding to another kind of MIMO pattern adjusts parameter, for example, take MIMO pattern as MU-MIMO pattern is as example, while adopting the mode of intersecting to obtain OLLA adjustment amount, not only use for OLLA corresponding to MU-MIMO pattern and adjust parameter, also will use OLLA corresponding to SU-MIMO pattern and adjust parameter.In the mode of intersecting, parameter is adjusted according to OLLA corresponding to the SINR, transmitting state information, this MIMO pattern that get in base station, as Block Error Rate, Signal Interference and Noise Ratio adjustment amount and default step-length etc., and OLLA adjustment parameter corresponding to another MIMO pattern, as Signal Interference and Noise Ratio adjustment amount etc. obtains the OLLA adjustment amount of this MIMO pattern and then obtains CQI value.It should be noted that, anyly adjust parameter by OLLA corresponding to the different MIMO patterns of cross-reference and carry out obtaining of OLLA adjustment amount and can think the mode of intersecting.Below, for these two kinds of modes, the present invention is described in detail for example.

Fig. 3 is the flow chart of the acquisition methods embodiment tri-of channel quality indicated value of the present invention.In the present embodiment, base station obtains user's the corresponding OLLA adjustment amount of each MIMO pattern by mode independently.As shown in Figure 3, the method comprises:

Step 301: base station obtains user's SINR and transmitting state information.

Step 302: base station judges that the current MIMO pattern of user is SU-MIMO pattern or MU-MIMO pattern.

Concrete, step 301 and step 302 can be referring to steps 101 in Fig. 1 embodiment mono-, and the execution of step 301 and step 302 there is no strict order, and step 302 both can be carried out also and can after step 302, carry out before step 301.

Step 303: base station adopts independent mode to obtain user's OLLA adjustment amount corresponding to SU-MIMO pattern.

In this step, it is alone family multiple-input and multiple-output SU-MIMO pattern that the current MIMO pattern of user is judged in base station, and transmitting state information to be shown to be transmission correct, obtain OLLA adjustment amount according to following formula:

Δ' _{SINR_SU-MIMO}=Δ _{SINR_SU-MIMO}+S _SU-MIMO×BLER _{T_SU-MIMO}；

Otherwise, be alone family multiple-input and multiple-output SU-MIMO pattern in the current MIMO pattern of user, and transmitting state information is while being shown to be error of transmission, obtains OLLA adjustment amount according to following formula:

Δ’ _{SINR_SU-MIMO}=Δ _{SINR_SU-MIMO}-S _SU-MIMO×（1.0-BLER _{T_SU-MIMO}）；

Wherein, BLER _{t_SU-MIMO}for Block Error Rate corresponding to SU-MIMO pattern, and 0.0<BLER _{t_SU-MIMO}<1, Δ _{sINR_SU-MIMO}for, the Signal Interference and Noise Ratio adjustment amount that SU-MIMO pattern is corresponding; Δ ' _{sINR_SU-MIMO}for OLLA adjustment amount corresponding to SU-MIMO pattern; S _sU-MIMOfor the corresponding default step-length of SU-MIMO pattern.

Step 304: base station obtains user's CQI corresponding to SU-MIMO pattern according to SINR and OLLA adjustment amount.

Concrete, can, referring to step 103, repeat no more herein.

Step 305: base station adopts independent mode to obtain user's OLLA adjustment amount corresponding to MU-MIMO pattern.

In this step, it is multi-user's multiple-input and multiple-output MU-MIMO pattern that the current MIMO pattern of user is judged in base station, and transmitting state information to be shown to be transmission correct, obtain OLLA adjustment amount according to following formula:

Δ' _{SINR_MU-MIMO}=Δ _{SINR_MU-MIMO}+S _MU-MIMO×BLER _{T_MU-MIMO}；

Otherwise, be multi-user's multiple-input and multiple-output MU-MIMO pattern in the current MIMO pattern of user, and transmitting state information is while being shown to be error of transmission, obtains OLLA adjustment amount according to following formula:

Δ’ _{SINR_MU-MIMO}=Δ _{SINR_MU-MIMO}-S _MU-MIMO×（1.0-BLER _{T_MU-MIMO}）；

Wherein, BLER _{t_MU-MIMO}for Block Error Rate corresponding to MU-MIMO pattern, and 0.0<BLER _{t_MU-MIMO}<1, Δ _{sINR_MU-MIMO}for, the Signal Interference and Noise Ratio adjustment amount that MU-MIMO pattern is corresponding; Δ ' _{sINR_MU-MIMO}for OLLA adjustment amount corresponding to MU-MIMO pattern, S _mU-MIMOfor the corresponding default step-length of MU-MIMO pattern.

Step 306: base station obtains user's CQI corresponding to MU-MIMO pattern according to SINR and OLLA adjustment amount.

Concrete, can, referring to Fig. 1 step 103, repeat no more herein.

In LTE communication network, (Additive White Gaussian Noise, AWGN) channel take transmission channel as additive white Gaussian noise, Block Error Rate is 0.1 for example, the relation of CQI value and Signal Interference and Noise Ratio can be with reference to Fig. 4.Fig. 4 is that in channel quality indicated value acquisition methods of the present invention, Block Error Rate is the mapping schematic diagram of CQI value and Signal Interference and Noise Ratio and the OLLA adjustment amount sum of 0.1 o'clock, and abscissa represents Signal Interference and Noise Ratio and OLLA adjustment amount sum, and ordinate represents CQI.In the present embodiment, the initial Signal Interference and Noise Ratio getting and OLLA adjustment amount sum are removed to search Fig. 4 as abscissa and inquired about corresponding CQI value.

For example, suppose the initial SINR=12.0dB that gets, the transmitting state information CRC of the SU-MIMO pattern getting _sU-MIMOfor correctly, the transmitting state information CRC of the MU-MIMO pattern getting _mU-MIMOfor mistake; In default adjustment parameter, BLER _{t_SU-MIMO}=BLER _{t_MU-MIMO}=0.1, S _sU-MIMO=0.2dB, S _mU-MIMO=0.4dB, Δ _{sINR_SU-MIMO}=1.2dB, Δ _{sINR_MU-MIMO}=-0.8dB.In the time that base station is judged user in SU-MIMO pattern, due to CRC _sU-MIMOfor correctly, Δ ' _{sINR_SU-MIMO}=Δ _{sINR_SU-MIMO}+ S _sU-MIMO× BLER _{t_SU-MIMO}=1.22dB, now, initial SINR and OLLA adjustment amount sum are SINR+ Δ ' _{sINR_SU-MIMO}=13.22dB, please refer to Fig. 4, SINR+ Δ ' _{sINR_SU-MIMO}as abscissa, corresponding ordinate is between CQI11～CQI12, and according to downward selection principle, selected CQI is 11, and then can obtain according to table 1, and now selected modulation system is 64QAM, and code rate is 3.3223bit/s/Hz.

In like manner, in the time that base station is judged user in MU-MIMO pattern, due to CRC _mU-MIMOfor mistake, Δ ' _{sINR_MU-MIMO}=Δ _{sINR_MU-MIMO}-S _mU-MIMO× (1.0-BLER _{t_MU-MIMO}the 1.16dB of)=-, now, initial SINR and OLLA adjustment amount sum are SINR+ Δ ' _{sINR_MU-MIMO}=12dB-1.16dB=10.8dB.Please refer to again Fig. 4, SINR+ Δ ' _{sINR_MU-MIMO}as abscissa, corresponding ordinate is between CQI10～CQI11, and according to downward selection principle, selected CQI is 10, and then can obtain according to table 1, and now selected modulation system is 64QAM, and code rate is 2.7305bit/s/Hz.

It should be noted that, the present embodiment be select downwards CQI be example the present invention will be described, but the present invention is as restriction, in other execution mode, can be also to take upwards to select CQI or compromise to select the mode of CQI.

In the present embodiment, the concrete MIMO pattern of user is distinguished in base station, be that the fluctuation of each MIMO pattern OLLA adjustment amount of obtaining corresponding OLLA adjustment amount SINR is less by mode independently, make the variation of the corresponding CQI value of obtaining according to this OLLA adjustment amount etc. also less, and then select suitable modulation system and code rate to eliminate the negative gain of user throughput.

Fig. 5 is the flow chart of the acquisition methods embodiment tetra-of channel quality indicated value of the present invention.In the present embodiment, base station obtains user's the corresponding OLLA adjustment amount of each MIMO pattern by the mode of intersecting.As shown in Figure 5, the method comprises:

Step 501: base station obtains user's SINR and transmitting state information.

Step 502: base station judges that the current MIMO pattern of user is SU-MIMO pattern or MU-MIMO pattern.

Concrete, step 501 and step 502 can be referring to steps 101 in Fig. 1 embodiment mono-, and the execution of step 501 and step 502 there is no strict order, and step 502 both can be carried out also and can after step 502, carry out before step 501.

Step 503: base station adopts interleaved mode to obtain user's OLLA adjustment amount corresponding to SU-MIMO pattern.

In this step, it is alone family multiple-input and multiple-output SU-MIMO pattern that the current MIMO pattern of user is judged in base station, and transmitting state information to be shown to be transmission correct, obtain OLLA adjustment amount according to following formula:

${\mathrm{\&Delta;}}_{\mathrm{SINR}\_\mathrm{SU}-\mathrm{MIMO}}^{\&prime;}={\mathrm{\&Delta;}}_{\mathrm{SINR}\_\mathrm{SU}-\mathrm{MIMO}}+S_{\mathrm{SU}-\mathrm{MIMO}}\&times;{\mathrm{BLER}}_{T\_\mathrm{SU}-\mathrm{MIMO}}+\&PartialD;\&times;{\mathrm{\&Delta;}}_{\mathrm{SINR}\_\mathrm{MU}-\mathrm{MIMO}};$

Otherwise, be alone family multiple-input and multiple-output SU-MIMO in the current MIMO pattern of user, and transmitting state information is while being shown to be error of transmission, obtains OLLA adjustment amount according to following formula:

${\mathrm{\&Delta;}}_{\mathrm{SINR}\_\mathrm{SU}-\mathrm{MIMO}}^{\&prime;}={\mathrm{\&Delta;}}_{\mathrm{SINR}\_\mathrm{SU}-\mathrm{MIMO}}-S_{\mathrm{SU}-\mathrm{MIMO}}\&times;(1.0-{\mathrm{BLER}}_{T\_\mathrm{SU}-\mathrm{MIMO}})+\&PartialD;\&times;{\mathrm{\&Delta;}}_{\mathrm{SINR}\_\mathrm{MU}-\mathrm{MIMO}};$

Wherein, BLER _{t_SU-MIMO}for Block Error Rate corresponding to SU-MIMO pattern, and 0.0<BLER _{t_SU-MIMO}<1, Δ _{sINR_SU-MIMO}for Signal Interference and Noise Ratio adjustment amount corresponding to SU-MIMO pattern, Δ _{sINR_MU-MIMO}for Signal Interference and Noise Ratio adjustment amount corresponding to MU-MIMO pattern; Δ ' _{sINR_SU-MIMO}for OLLA adjustment amount corresponding to SU-MIMO pattern; S _sU-MIMOfor the corresponding default step-length of SU-MIMO pattern,

for adjusting the factor,

Step 504: base station obtains user's CQI corresponding to SU-MIMO pattern according to SINR and OLLA adjustment amount.

Concrete, can, referring to step 103, repeat no more herein.

Step 505: base station adopts interleaved mode to obtain user's OLLA adjustment amount corresponding to MU-MIMO pattern.

In this step, it is multi-user's multiple-input and multiple-output MU-MIMO pattern that the current MIMO pattern of user is judged in base station, and transmitting state information to be shown to be transmission correct, obtain OLLA adjustment amount according to following formula:

${\mathrm{\&Delta;}}_{\mathrm{SINR}\_\mathrm{MU}-\mathrm{MIMO}}^{\&prime;}={\mathrm{\&Delta;}}_{\mathrm{SINR}\_\mathrm{MU}-\mathrm{MIMO}}+S_{\mathrm{MU}-\mathrm{MIMO}}\&times;{\mathrm{BLER}}_{T\_\mathrm{SU}-\mathrm{MIMO}}+\&PartialD;\&times;{\mathrm{\&Delta;}}_{\mathrm{SINR}\_\mathrm{SU}-\mathrm{MIMO}};$

Otherwise, be alone family multiple-input and multiple-output MU-MIMO in the current MIMO pattern of user, and transmitting state information is while being shown to be error of transmission, obtains OLLA adjustment amount according to following formula:

${\mathrm{\&Delta;}}_{\mathrm{SINR}\_\mathrm{MU}-\mathrm{MIMO}}^{\&prime;}={\mathrm{\&Delta;}}_{\mathrm{SINR}\_\mathrm{MU}-\mathrm{MIMO}}-S_{\mathrm{MU}-\mathrm{MIMO}}\&times;(1.0-{\mathrm{BLER}}_{T\_\mathrm{MU}-\mathrm{MIMO}})+\&PartialD;\&times;{\mathrm{\&Delta;}}_{\mathrm{SINR}\_\mathrm{SU}-\mathrm{MIMO}};$

Wherein, BLER _{t_MU-MIMO}for Block Error Rate corresponding to MU-MIMO pattern, and 0.0<BLER _{t_MU-MIMO}<1, Δ _{sINR_SU-MIMO}for Signal Interference and Noise Ratio adjustment amount corresponding to SU-MIMO pattern, Δ _{sINR_MU-MIMO}for, the Signal Interference and Noise Ratio adjustment amount that MU-MIMO pattern is corresponding; Δ ' _{sINR_MU-MIMO}for OLLA adjustment amount corresponding to MU-MIMO pattern, S _mU-MIMOfor the corresponding default step-length of MU-MIMO pattern,

for adjusting the factor,

Step 506: base station obtains CQI corresponding to user MU-MIMO pattern according to SINR and OLLA adjustment amount.

Concrete, can, referring to step 103, repeat no more herein.

For example, in above-described embodiment, suppose the initial SINR=12.0dB that gets, the transmitting state information CRC of the SU-MIMO pattern getting _sU-MIMOfor correctly, the transmitting state information CRC of the MU-MIMO pattern getting _mU-MIMOfor mistake; In default adjustment parameter, BLER _{t_SU-MIMO}=BLER _{t_MU-MIMO}=0.1, S _sU-MIMO=0.2dB, S _mU-MIMO=0.4dB, Δ _{sINR_SU-MIMO}=1.2dB, Δ _{sINR_MU-MIMO}=-0.8dB, in the time that base station is judged user in SU-MIMO pattern, due to CRC _sU-MIMOfor correctly, ${\mathrm{\&Delta;}}_{\mathrm{SINR}\_\mathrm{MU}-\mathrm{MIMO}}^{\&prime;}={\mathrm{\&Delta;}}_{\mathrm{SINR}\_\mathrm{MU}-\mathrm{MIMO}}+S_{\mathrm{MU}-\mathrm{MIMO}}\&times;{\mathrm{BLER}}_{T\_\mathrm{SU}-\mathrm{MIMO}}+\&PartialD;\&times;{\mathrm{\&Delta;}}_{\mathrm{SINR}\_\mathrm{SU}-\mathrm{MIMO}}=1.14\mathrm{dB},$ Now, initial SINR and OLLA adjustment amount sum be SINR+ Δ ' _{sINR_SU-MIMO}=12.0dB+1.14dB=13.14dB, please refer to Fig. 4, SINR+ Δ ' _{sINR_SU-MIMO}as abscissa, corresponding ordinate is between CQI11～CQI12, and according to downward selection principle, selected CQI is 11, and then can obtain according to table 1, and now selected modulation system is 64QAM, and code rate is 3.3223bit/s/Hz.

In like manner, when user is judged when for MU-MIMO pattern, due to CRC in base station _mU-MIMOfor mistake, ${\mathrm{\&Delta;}}_{\mathrm{SINR}\_\mathrm{MU}-\mathrm{MIMO}}^{\&prime;}={\mathrm{\&Delta;}}_{\mathrm{SINR}\_\mathrm{MU}-\mathrm{MIMO}}-S_{\mathrm{MU}-\mathrm{MIMO}}\&times;(1.0-{\mathrm{BLER}}_{T\_\mathrm{MU}-\mathrm{MIMO}})+\&PartialD;\&times;{\mathrm{\&Delta;}}_{\mathrm{SINR}\_\mathrm{SU}-\mathrm{MIMO}}=-1.04\mathrm{dB},$ Now, initial SINR and OLLA adjustment amount sum be SINR+ Δ ' _{sINR_MU-MIMO}=12dB-1.04dB=10.96dB.Please refer to again Fig. 4, SINR+ Δ ' _{sINR_MU-MIMO}as abscissa, corresponding ordinate is between CQI10～CQI11, and according to downward selection principle, selected CQI is 10, and then can obtain according to table 1, and now selected modulation system is 64QAM, and code rate is 2.7405bit/s/Hz.

It should be noted that, the present embodiment be select downwards CQI be example the present invention will be described, but the present invention is as restriction, in other execution mode, can be also to take upwards to select CQI or compromise to select the mode of CQI.

In the present embodiment, the concrete MIMO pattern of user is distinguished in base station, be that the fluctuation of each MIMO pattern OLLA adjustment amount of obtaining corresponding OLLA adjustment amount SINR is less by the mode of intersecting, make the variation of the corresponding CQI value of obtaining according to this OLLA adjustment amount etc. also less, and then select suitable modulation system and code rate to eliminate the negative gain of user throughput.

The structural representation of the acquisition device embodiment mono-of Fig. 6 channel quality indicated value of the present invention.As shown in Figure 6, the device of the present embodiment can comprise: the first acquisition module 11, the second acquisition module 12 and the 3rd acquisition module 13.

The first acquisition module 11, for obtaining user's Signal Interference and Noise Ratio and user's multiple-input and multiple-output MIMO pattern, MIMO pattern comprises alone family multiple-input and multiple-output SU-MIMO pattern or multi-user's multiple-input and multiple-output MU-MIMO pattern;

The second acquisition module 12, for the MIMO pattern getting according to the first acquisition module 11, obtains the outer shroud link circuit self-adapting OLLA adjustment amount corresponding with user's MIMO pattern;

The 3rd acquisition module 13, the OLLA adjustment amount getting for the Signal Interference and Noise Ratio that gets according to the first acquisition module 11 and the second acquisition module 12, obtains user's channel quality indicated value.

The device of the present embodiment, can be for the technical scheme of embodiment of the method shown in execution graph 1, and it realizes principle and technique effect is similar, repeats no more herein.

The acquisition device of the channel quality indicated value that the present embodiment provides, by the first acquisition module obtain user SINR and and judge this user's MIMO pattern, the second acquisition module obtains the OLLA adjustment amount corresponding with this MIMO pattern according to MIMO pattern, then the OLLA adjustment amount that the SINR that the 3rd acquisition module gets according to the first acquisition module and the second acquisition module get, obtains this user's CQI value.The acquisition device of the channel quality indicated value that the present embodiment provides, the concrete MIMO pattern of user is distinguished in base station, each MIMO pattern for user is obtained the OLLA adjustment amount corresponding with this MIMO pattern, the fluctuation of the OLLA adjustment amount of SINR is less, make the variation of the corresponding CQI value of obtaining according to this OLLA adjustment amount etc. also less, and then select suitable modulation system and code rate to eliminate the negative gain of user throughput.

The structural representation of the acquisition device embodiment bis-of Fig. 7 channel quality indicated value of the present invention.As shown in Figure 7, the device of the present embodiment, on the basis of Fig. 5 shown device, further can also comprise:

The 4th acquisition module 14, for obtaining user's transmitting state information, transmitting state information is for showing the correct or error of transmission of user's the transmission of packet;

The second acquisition module 12, the MIMO pattern also getting for the transmitting state information that gets according to the 4th acquisition module 14 and the first acquisition module 11, obtain the OLLA adjustment amount corresponding with transmitting state information and MIMO pattern: if user in SU-MIMO pattern, obtains the OLLA adjustment amount corresponding with SU-MIMO pattern and transmitting state information; If user, in described MU-MIMO pattern, obtains the OLLA adjustment amount corresponding with MU-MIMO pattern and transmitting state information.

The device of the present embodiment, can be for the technical scheme of manner of execution embodiment bis-, and it realizes principle and technique effect is similar, repeats no more herein.

Further, the second acquisition module 12, also for: obtain OLLA adjustment amount corresponding to MIMO pattern by mode independently; Or, obtain OLLA adjustment amount corresponding to MIMO pattern by the mode of intersecting, wherein, independently mode is only to use OLLA corresponding to MIMO pattern to adjust parameter, the mode of intersection is that OLLA corresponding to the different MIMO patterns of cross-reference adjusts parameter.

Further, the second acquisition module 12, specifically for:

If being SU-MIMO pattern and transmitting state information, MIMO pattern shows that transmission is correct, obtains OLLA adjustment amount according to following formula:

Δ' _{SINR_SU-MIMO}=Δ _{SINR_SU-MIMO}+S _SU-MIMO×BLER _{T_SU-MIMO}；

Show error of transmission if MIMO pattern is SU-MIMO pattern and transmitting state information, obtain OLLA adjustment amount according to following formula:

Δ’ _{SINR_SU-MIMO}=Δ _{SINR_SU-MIMO}-S _SU-MIMO×（1.0-BLER _{T_SU-MIMO}）；

If being MU-MIMO pattern and transmitting state information, MIMO pattern shows that transmission is correct, obtains OLLA adjustment amount according to following formula:

Δ' _{SINR_MU-MIMO}=Δ _{SINR_MU-MIMO}+S _MU-MIMO×BLER _{T_MU-MIMO}；

Show error of transmission if MIMO pattern is MU-MIMO pattern and transmitting state information, obtain OLLA adjustment amount according to following formula:

Δ’ _{SINR_MU-MIMO}=Δ _{SINR_MU-MIMO}-S _MU-MIMO×（1.0-BLER _{T_MU-MIMO}）；

Wherein, target Block Error Rate corresponding to SU-MIMO pattern is BLER _{t_SU-MIMO}, target Block Error Rate corresponding to MU-MIMO pattern is BLER _{t_MU-MIMO}, and 0.0<BLER _{t_SU-MIMO}<1,0.0<BLER _{t_MU-MIMO}<1; Signal Interference and Noise Ratio adjustment amount corresponding to SU-MIMO pattern is Δ _{sINR_SU-MIMO}, Signal Interference and Noise Ratio adjustment amount corresponding to MU-MIMO pattern is Δ _{sINR_MU-MIMO}; Step-length corresponding to SU-MIMO pattern is S _sU-MIMO, step-length corresponding to MU-MIMO pattern is S _mU-MIMO; OLLA adjustment amount corresponding to SU-MIMO pattern is Δ ' _{sINR_SU-MIMO}, OLLA adjustment amount corresponding to MU-MIMO pattern is Δ ' _{sINR_MU-MIMO}.

Further, the second acquisition module 12, specifically for:

If being SU-MIMO pattern and transmitting state information, MIMO pattern shows that transmission is correct, obtains OLLA adjustment amount according to following formula:

${\mathrm{\&Delta;}}_{\mathrm{SINR}\_\mathrm{SU}-\mathrm{MIMO}}^{\&prime;}={\mathrm{\&Delta;}}_{\mathrm{SINR}\_\mathrm{SU}-\mathrm{MIMO}}+S_{\mathrm{SU}-\mathrm{MIMO}}\&times;{\mathrm{BLER}}_{T\_\mathrm{SU}-\mathrm{MIMO}}+\&PartialD;\&times;{\mathrm{\&Delta;}}_{\mathrm{SINR}\_\mathrm{MU}-\mathrm{MIMO}};$

Show error of transmission if MIMO pattern is SU-MIMO pattern and transmitting state information, obtain OLLA adjustment amount according to following formula:

${\mathrm{\&Delta;}}_{\mathrm{SINR}\_\mathrm{SU}-\mathrm{MIMO}}^{\&prime;}={\mathrm{\&Delta;}}_{\mathrm{SINR}\_\mathrm{SU}-\mathrm{MIMO}}-S_{\mathrm{SU}-\mathrm{MIMO}}\&times;(1.0-{\mathrm{BLER}}_{T\_\mathrm{SU}-\mathrm{MIMO}})+\&PartialD;\&times;{\mathrm{\&Delta;}}_{\mathrm{SINR}\_\mathrm{MU}-\mathrm{MIMO}};$

If being MU-MIMO pattern and transmitting state information, MIMO pattern shows that transmission is correct, obtains OLLA adjustment amount according to following formula:

${\mathrm{\&Delta;}}_{\mathrm{SINR}\_\mathrm{MU}-\mathrm{MIMO}}^{\&prime;}={\mathrm{\&Delta;}}_{\mathrm{SINR}\_\mathrm{MU}-\mathrm{MIMO}}+S_{\mathrm{MU}-\mathrm{MIMO}}\&times;{\mathrm{BLER}}_{T\_\mathrm{SU}-\mathrm{MIMO}}+\&PartialD;\&times;{\mathrm{\&Delta;}}_{\mathrm{SINR}\_\mathrm{SU}-\mathrm{MIMO}};$

Show error of transmission if MIMO pattern is MU-MIMO pattern and transmitting state information, obtain OLLA adjustment amount according to following formula:

${\mathrm{\&Delta;}}_{\mathrm{SINR}\_\mathrm{MU}-\mathrm{MIMO}}^{\&prime;}={\mathrm{\&Delta;}}_{\mathrm{SINR}\_\mathrm{MU}-\mathrm{MIMO}}-S_{\mathrm{MU}-\mathrm{MIMO}}\&times;(1.0-{\mathrm{BLER}}_{T\_\mathrm{MU}-\mathrm{MIMO}})+\&PartialD;\&times;{\mathrm{\&Delta;}}_{\mathrm{SINR}\_\mathrm{SU}-\mathrm{MIMO}};$

Wherein, target Block Error Rate corresponding to SU-MIMO pattern is BLER _{t_SU-MIMO}, target Block Error Rate corresponding to MU-MIMO pattern is BLER _{t_MU-MIMO}, and 0.0<BLER _{t_SU-MIMO}<1,0.0<BLER _{t_MU-MIMO}<1; Signal Interference and Noise Ratio adjustment amount corresponding to SU-MIMO pattern is Δ _{sINR_SU-MIMO}, Signal Interference and Noise Ratio adjustment amount corresponding to MU-MIMO pattern is Δ _{sINR_MU-MIMO}; Step-length corresponding to SU-MIMO pattern is S _sU-MIMO, step-length corresponding to MU-MIMO pattern is S _mU-MIMO; OLLA adjustment amount corresponding to SU-MIMO pattern is Δ ' _{sINR_SU-MIMO}, OLLA adjustment amount corresponding to MU-MIMO pattern is Δ ' _{sINR_MU-MIMO},

for adjusting the factor, and

The structural representation of the acquisition device embodiment tri-of Fig. 8 channel quality indicated value of the present invention.As shown in Figure 8, the acquisition device 800 of the channel quality indicated value of the present embodiment comprises at least one processor 801 and at least one memory 805.Further, the acquisition device 800 of channel quality indicated value can also comprise at least one communication bus 802 and at least one network interface 804 or other user interfaces 803.Communication bus 802 is for realizing the connection communication between each device, and network interface 804 or other user interfaces 803 are in order to receive various signals etc.Memory 805 may comprise high-speed RAM memory, also may also comprise nonvolatile memory (English is non-volatile memory, NVM), for example at least one magnetic disc store.Memory 805 stores instruction, and processor 801 is carried out described instruction and is used for:

Obtain user's Signal Interference and Noise Ratio and user's multiple-input and multiple-output MIMO pattern, MIMO pattern comprises alone family multiple-input and multiple-output SU-MIMO pattern or multi-user's multiple-input and multiple-output MU-MIMO pattern, according to MIMO pattern, obtain the outer shroud link circuit self-adapting OLLA adjustment amount corresponding with user's MIMO pattern, according to user's Signal Interference and Noise Ratio and OLLA adjustment amount, obtain user's channel quality indicated value.

The acquisition device of the channel quality indicated value that the present embodiment provides, by processor obtain user SINR and and judge this user's MIMO pattern, obtain the OLLA adjustment amount corresponding with this MIMO pattern according to MIMO pattern, then according to the SINR and the OLLA adjustment amount that get, obtain this user's CQI value.The acquisition device of the channel quality indicated value that the present embodiment provides, distinguish the concrete transmission state of user, obtain the OLLA adjustment amount corresponding with this transmission state for each transmission state, the fluctuation of the OLLA adjustment amount of SINR is less, make the variation of the corresponding CQI value of obtaining according to this OLLA adjustment amount etc. also less, and then select suitable modulation system and code rate to eliminate the negative gain of user throughput.

Further, processor 801 is carried out described instruction, also for:

Obtain user's transmitting state information, transmitting state information is for showing the correct or error of transmission of user's the transmission of packet, according to transmitting state information and MIMO pattern, obtain the OLLA adjustment amount corresponding with transmitting state information and MIMO pattern: if user in SU-MIMO pattern, obtains the OLLA adjustment amount corresponding with SU-MIMO pattern and transmitting state information; If user in MU-MIMO pattern, obtains the OLLA adjustment amount corresponding with MU-MIMO pattern and transmitting state information.

Processor 801 is carried out described instruction, also for: obtain OLLA adjustment amount corresponding to MIMO pattern by mode independently; Or, obtain OLLA adjustment amount corresponding to MIMO pattern by the mode of intersecting, wherein, independently mode is only to use OLLA corresponding to MIMO pattern to adjust parameter, the mode of intersection is that OLLA corresponding to the different MIMO patterns of cross-reference adjusts parameter.

Further, processor 801 is carried out described instruction, specifically for:

If being SU-MIMO pattern and transmitting state information, MIMO pattern shows that transmission is correct, obtains OLLA adjustment amount according to following formula:

Δ' _{SINR_SU-MIMO}=Δ _{SINR_SU-MIMO}+S _SU-MIMO×BLER _{T_SU-MIMO}；

Show error of transmission if MIMO pattern is SU-MIMO pattern and transmitting state information, obtain OLLA adjustment amount according to following formula:

Δ’ _{SINR_SU-MIMO}=Δ _{SINR_SU-MIMO}-S _SU-MIMO×（1.0-BLER _{T_SU-MIMO}）；

If being MU-MIMO pattern and transmitting state information, MIMO pattern shows that transmission is correct, obtains OLLA adjustment amount according to following formula:

Δ' _{SINR_MU-MIMO}=Δ _{SINR_MU-MIMO}+S _MU-MIMO×BLER _{T_MU-MIMO}；

Show error of transmission if MIMO pattern is MU-MIMO pattern and transmitting state information, obtain OLLA adjustment amount according to following formula:

Δ’ _{SINR_MU-MIMO}=Δ _{SINR_MU-MIMO}-S _MU-MIMO×（1.0-BLER _{T_MU-MIMO}）；

Wherein, target Block Error Rate corresponding to SU-MIMO pattern is BLER _{t_SU-MIMO}, target Block Error Rate corresponding to MU-MIMO pattern is BLER _{t_MU-MIMO}, and 0.0<BLER _{t_SU-MIMO}<1,0.0<BLER _{t_MU-MIMO}<1; Signal Interference and Noise Ratio adjustment amount corresponding to SU-MIMO pattern is Δ _{sINR_SU-MIMO}, Signal Interference and Noise Ratio adjustment amount corresponding to MU-MIMO pattern is Δ _{sINR_MU-MIMO}; Step-length corresponding to SU-MIMO pattern is S _sU-MIMO, step-length corresponding to MU-MIMO pattern is S _mU-MIMO; OLLA adjustment amount corresponding to SU-MIMO pattern is Δ ' _{sINR_SU-MIMO}, OLLA adjustment amount corresponding to MU-MIMO pattern is Δ ' _{sINR_MU-MIMO}.

Further, processor 801 is carried out described instruction, specifically for:

If being SU-MIMO pattern and transmitting state information, MIMO pattern shows that transmission is correct, obtains OLLA adjustment amount according to following formula:

${\mathrm{\&Delta;}}_{\mathrm{SINR}\_\mathrm{SU}-\mathrm{MIMO}}^{\&prime;}={\mathrm{\&Delta;}}_{\mathrm{SINR}\_\mathrm{SU}-\mathrm{MIMO}}+S_{\mathrm{SU}-\mathrm{MIMO}}\&times;{\mathrm{BLER}}_{T\_\mathrm{SU}-\mathrm{MIMO}}+\&PartialD;\&times;{\mathrm{\&Delta;}}_{\mathrm{SINR}\_\mathrm{MU}-\mathrm{MIMO}};$

Show error of transmission if MIMO pattern is SU-MIMO pattern and transmitting state information, obtain OLLA adjustment amount according to following formula:

${\mathrm{\&Delta;}}_{\mathrm{SINR}\_\mathrm{SU}-\mathrm{MIMO}}^{\&prime;}={\mathrm{\&Delta;}}_{\mathrm{SINR}\_\mathrm{SU}-\mathrm{MIMO}}-S_{\mathrm{SU}-\mathrm{MIMO}}\&times;(1.0-{\mathrm{BLER}}_{T\_\mathrm{SU}-\mathrm{MIMO}})+\&PartialD;\&times;{\mathrm{\&Delta;}}_{\mathrm{SINR}\_\mathrm{MU}-\mathrm{MIMO}};$

If being MU-MIMO pattern and transmitting state information, MIMO pattern shows that transmission is correct, obtains OLLA adjustment amount according to following formula:

${\mathrm{\&Delta;}}_{\mathrm{SINR}\_\mathrm{MU}-\mathrm{MIMO}}^{\&prime;}={\mathrm{\&Delta;}}_{\mathrm{SINR}\_\mathrm{MU}-\mathrm{MIMO}}+S_{\mathrm{MU}-\mathrm{MIMO}}\&times;{\mathrm{BLER}}_{T\_\mathrm{SU}-\mathrm{MIMO}}+\&PartialD;\&times;{\mathrm{\&Delta;}}_{\mathrm{SINR}\_\mathrm{SU}-\mathrm{MIMO}};$

Show error of transmission if MIMO pattern is MU-MIMO pattern and transmitting state information, obtain OLLA adjustment amount according to following formula:

${\mathrm{\&Delta;}}_{\mathrm{SINR}\_\mathrm{MU}-\mathrm{MIMO}}^{\&prime;}={\mathrm{\&Delta;}}_{\mathrm{SINR}\_\mathrm{MU}-\mathrm{MIMO}}-S_{\mathrm{MU}-\mathrm{MIMO}}\&times;(1.0-{\mathrm{BLER}}_{T\_\mathrm{MU}-\mathrm{MIMO}})+\&PartialD;\&times;{\mathrm{\&Delta;}}_{\mathrm{SINR}\_\mathrm{SU}-\mathrm{MIMO}};$

Wherein, target Block Error Rate corresponding to SU-MIMO pattern is BLER _{t_SU-MIMO}, target Block Error Rate corresponding to MU-MIMO pattern is BLER _{t_MU-MIMO}, and 0.0<BLER _{t_SU-MIMO}<1,0.0<BLER _{t_MU-MIMO}<1; Signal Interference and Noise Ratio adjustment amount corresponding to SU-MIMO pattern is Δ _{sINR_SU-MIMO}, Signal Interference and Noise Ratio adjustment amount corresponding to MU-MIMO pattern is Δ _{sINR_MU-MIMO}; Step-length corresponding to SU-MIMO pattern is S _sU-MIMO, step-length corresponding to MU-MIMO pattern is S _mU-MIMO; OLLA adjustment amount corresponding to SU-MIMO pattern is Δ ' _{sINR_SU-MIMO}, OLLA adjustment amount corresponding to MU-MIMO pattern is Δ ' _{sINR_MU-MIMO}, for adjusting the factor, and

The acquisition methods of the channel quality indicated value that the embodiment of the present invention provides and device, by obtaining user's SINR and the historical information of CRC in Transmission Time Interval and judging this user's transmission state, according to default, corresponding with transmission state target Block Error Rate, Signal Interference and Noise Ratio adjustment amount and step-length, according to default rule, obtain OLLA adjustment amount corresponding to each transmission state and CRC historical information, then according to the SINR and the OLLA adjustment amount that get, obtain this user's CQI value.The acquisition methods of the channel quality indicated value that the present embodiment provides, distinguish the concrete transmission state of user, obtain the OLLA adjustment amount corresponding with this transmission state for each transmission state, the fluctuation of the OLLA adjustment amount of SINR is less, make the variation of the corresponding CQI value of obtaining according to this OLLA adjustment amount etc. also less, and then select suitable modulation system and code rate to eliminate the negative gain of user throughput.

It should be noted that, technical scheme of the present invention, can be applied to various communication systems, for example: global system for mobile communications (Global System for Mobile Communications, GSM), code division multiple access (Code Division Multiple Access, CDMA) system, Wideband Code Division Multiple Access (WCDMA) (Wideband Code Division Multiple Access, WCDMA) system, Long Term Evolution (Long Term Evolution, LTE) system etc.; Base station, can be the base station (Base Transceiver Station, BTS) in CDMA, can be also the base station NodeB in WCDMA, can also be the evolved base station (Evolutional Node B, eNB or eNodeB) in LTE, and the present invention does not limit.

In several embodiment provided by the present invention, should be understood that disclosed apparatus and method can realize by another way.For example, device embodiment described above is only schematic, for example, the division of described unit, be only that a kind of logic function is divided, when actual realization, can have other dividing mode, for example multiple unit or assembly can in conjunction with or can be integrated into another system, or some features can ignore, or do not carry out.Another point, shown or discussed coupling each other or direct-coupling or communication connection can be by some interfaces, indirect coupling or the communication connection of device or unit can be electrically, machinery or other form.

The described unit as separating component explanation can or can not be also physically to separate, and the parts that show as unit can be or can not be also physical locations, can be positioned at a place, or also can be distributed in multiple network element.Can select according to the actual needs some or all of unit wherein to realize the object of the present embodiment scheme.

In addition, the each functional unit in each embodiment of the present invention can be integrated in a processing unit, can be also that the independent physics of unit exists, and also can be integrated in a unit two or more unit.Above-mentioned integrated unit both can adopt the form of hardware to realize, and the form that also can adopt hardware to add SFU software functional unit realizes.

The integrated unit that the above-mentioned form with SFU software functional unit realizes, can be stored in a computer read/write memory medium.Above-mentioned SFU software functional unit is stored in a storage medium, comprise that some instructions (can be personal computers in order to make a computer equipment, server, or the network equipment etc.) or processor (processor) carry out the part steps of method described in each embodiment of the present invention.And aforesaid storage medium comprises: various media that can be program code stored such as USB flash disk, portable hard drive, read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), magnetic disc or CDs.

Those skilled in the art can be well understood to, for convenience and simplicity of description, only be illustrated with the division of above-mentioned each functional module, in practical application, can above-mentioned functions be distributed and completed by different functional modules as required, be divided into different functional modules by the internal structure of device, to complete all or part of function described above.The specific works process of the device of foregoing description, can, with reference to the corresponding process in preceding method embodiment, not repeat them here.

Finally it should be noted that: above each embodiment, only in order to technical scheme of the present invention to be described, is not intended to limit; Although the present invention is had been described in detail with reference to aforementioned each embodiment, those of ordinary skill in the art is to be understood that: its technical scheme that still can record aforementioned each embodiment is modified, or some or all of technical characterictic is wherein equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution depart from the scope of various embodiments of the present invention technical scheme.

Claims (15)

1. an acquisition methods for channel quality indicated value, is characterized in that, comprising:

Obtain user's Signal Interference and Noise Ratio and described user's multiple-input and multiple-output MIMO pattern, described MIMO pattern comprises alone family multiple-input and multiple-output SU-MIMO pattern or multi-user's multiple-input and multiple-output MU-MIMO pattern;

According to described MIMO pattern, obtain the outer shroud link circuit self-adapting OLLA adjustment amount corresponding with described user's described MIMO pattern;

According to described user's described Signal Interference and Noise Ratio and described OLLA adjustment amount, obtain described user's channel quality indicated value.

2. method according to claim 1, is characterized in that, described according to described MIMO pattern, before obtaining the OLLA adjustment amount corresponding with described user's described MIMO pattern, also comprises:

Obtain described user's transmitting state information, described transmitting state information is for showing the correct or error of transmission of described user's the transmission of packet;

Described according to described MIMO pattern, obtain the OLLA adjustment amount corresponding with described user's described MIMO pattern, comprising:

According to described transmitting state information and described MIMO pattern, obtain the OLLA adjustment amount corresponding with described transmitting state information and described MIMO pattern: if described user in described SU-MIMO pattern, obtains the OLLA adjustment amount corresponding with described SU-MIMO pattern and described transmitting state information; If described user in described MU-MIMO pattern, obtains the OLLA adjustment amount corresponding with described MU-MIMO pattern and described transmitting state information.

3. method according to claim 2, is characterized in that, described according to described transmitting state information and described MIMO pattern, obtains the OLLA adjustment amount corresponding with described transmitting state information and described MIMO pattern, comprising:

Obtain OLLA adjustment amount corresponding to described MIMO pattern by mode independently; Or, obtain OLLA adjustment amount corresponding to described MIMO pattern by the mode of intersecting, wherein, described independently mode is only to use OLLA corresponding to described MIMO pattern to adjust parameter, and the mode of described intersection is that OLLA corresponding to the different MIMO patterns of cross-reference adjusts parameter.

4. method according to claim 3, is characterized in that, describedly obtains OLLA adjustment amount corresponding to described MIMO pattern by mode independently, is specially following either type or its combination:

If being SU-MIMO pattern and described transmitting state information, described MIMO pattern shows that transmission is correct, obtains described OLLA adjustment amount according to following formula:

Δ' _{SINR_SU-MIMO}=Δ _{SINR_SU-MIMO}+S _SU-MIMO×BLER _{T_SU-MIMO}；

Show error of transmission if described MIMO pattern is SU-MIMO pattern and described transmitting state information, obtain described OLLA adjustment amount according to following formula:

Δ’ _{SINR_SU-MIMO}=Δ _{SINR_SU-MIMO}-S _SU-MIMO×（1.0-BLER _{T_SU-MIMO}）；

If being MU-MIMO pattern and described transmitting state information, described MIMO pattern shows that transmission is correct, obtains described OLLA adjustment amount according to following formula:

Δ' _{SINR_MU-MIMO}=Δ _{SINR_MU-MIMO}+S _MU-MIMO×BLER _{T_MU-MIMO}；

Show error of transmission if described MIMO pattern is MU-MIMO pattern and described transmitting state information, obtain described OLLA adjustment amount according to following formula:

Δ’ _{SINR_MU-MIMO}=Δ _{SINR_MU-MIMO}-S _MU-MIMO×（1.0-BLER _{T_MU-MIMO}）；

Wherein, target Block Error Rate corresponding to SU-MIMO pattern is BLER _{t_SU-MIMO}, target Block Error Rate corresponding to MU-MIMO pattern is BLER _{t_MU-MIMO}, and 0.0<BLER _{t_SU-MIMO}<1,0.0<BLER _{t_MU-MIMO}<1; Signal Interference and Noise Ratio adjustment amount corresponding to SU-MIMO pattern is Δ _{sINR_SU-MIMO}, Signal Interference and Noise Ratio adjustment amount corresponding to MU-MIMO pattern is Δ _{sINR_MU-MIMO}; Step-length corresponding to SU-MIMO pattern is S _sU-MIMO, step-length corresponding to MU-MIMO pattern is S _mU-MIMO; OLLA adjustment amount corresponding to SU-MIMO pattern is Δ ' _{sINR_SU-MIMO}, OLLA adjustment amount corresponding to MU-MIMO pattern is Δ ' _{sINR_MU-MIMO}.

5. method according to claim 3, is characterized in that, the described mode by intersection is obtained OLLA adjustment amount corresponding to described MIMO pattern, is specially following either type or its combination:

If being SU-MIMO pattern and described transmitting state information, described MIMO pattern shows that transmission is correct, obtains described OLLA adjustment amount according to following formula:

${\mathrm{\&Delta;}}_{\mathrm{SINR}\_\mathrm{SU}-\mathrm{MIMO}}^{\&prime;}={\mathrm{\&Delta;}}_{\mathrm{SINR}\_\mathrm{SU}-\mathrm{MIMO}}+S_{\mathrm{SU}-\mathrm{MIMO}}\&times;{\mathrm{BLER}}_{T\_\mathrm{SU}-\mathrm{MIMO}}+\&PartialD;\&times;{\mathrm{\&Delta;}}_{\mathrm{SINR}\_\mathrm{MU}-\mathrm{MIMO}};$

Show error of transmission if described MIMO pattern is SU-MIMO pattern and described transmitting state information, obtain described OLLA adjustment amount according to following formula:

${\mathrm{\&Delta;}}_{\mathrm{SINR}\_\mathrm{SU}-\mathrm{MIMO}}^{\&prime;}={\mathrm{\&Delta;}}_{\mathrm{SINR}\_\mathrm{SU}-\mathrm{MIMO}}-S_{\mathrm{SU}-\mathrm{MIMO}}\&times;(1.0-{\mathrm{BLER}}_{T\_\mathrm{SU}-\mathrm{MIMO}})+\&PartialD;\&times;{\mathrm{\&Delta;}}_{\mathrm{SINR}\_\mathrm{MU}-\mathrm{MIMO}};$

If being MU-MIMO pattern and described transmitting state information, described MIMO pattern shows that transmission is correct, obtains described OLLA adjustment amount according to following formula:

${\mathrm{\&Delta;}}_{\mathrm{SINR}\_\mathrm{MU}-\mathrm{MIMO}}^{\&prime;}={\mathrm{\&Delta;}}_{\mathrm{SINR}\_\mathrm{MU}-\mathrm{MIMO}}+S_{\mathrm{MU}-\mathrm{MIMO}}\&times;{\mathrm{BLER}}_{T\_\mathrm{SU}-\mathrm{MIMO}}+\&PartialD;\&times;{\mathrm{\&Delta;}}_{\mathrm{SINR}\_\mathrm{SU}-\mathrm{MIMO}};$

Show error of transmission if described MIMO pattern is MU-MIMO pattern and described transmitting state information, obtain described OLLA adjustment amount according to following formula:

${\mathrm{\&Delta;}}_{\mathrm{SINR}\_\mathrm{MU}-\mathrm{MIMO}}^{\&prime;}={\mathrm{\&Delta;}}_{\mathrm{SINR}\_\mathrm{MU}-\mathrm{MIMO}}-S_{\mathrm{MU}-\mathrm{MIMO}}\&times;(1.0-{\mathrm{BLER}}_{T\_\mathrm{MU}-\mathrm{MIMO}})+\&PartialD;\&times;{\mathrm{\&Delta;}}_{\mathrm{SINR}\_\mathrm{SU}-\mathrm{MIMO}};$

Wherein, target Block Error Rate corresponding to SU-MIMO pattern is BLER _{t_SU-MIMO}, target Block Error Rate corresponding to MU-MIMO pattern is BLER _{t_MU-MIMO}, and 0.0<BLER _{t_SU-MIMO}<1,0.0<BLER _{t_MU-MIMO}<1; Signal Interference and Noise Ratio adjustment amount corresponding to SU-MIMO pattern is Δ _{sINR_SU-MIMO}, Signal Interference and Noise Ratio adjustment amount corresponding to MU-MIMO pattern is Δ _{sINR_MU-MIMO}; Step-length corresponding to SU-MIMO pattern is S _sU-MIMO, step-length corresponding to MU-MIMO pattern is S _mU-MIMO; OLLA adjustment amount corresponding to SU-MIMO pattern is Δ ' _{sINR_SU-MIMO}, OLLA adjustment amount corresponding to MU-MIMO pattern is Δ ' _{sINR_MU-MIMO},

for adjusting the factor, and

6. an acquisition device for channel quality indicated value, is characterized in that, comprising:

The first acquisition module, for obtaining user's Signal Interference and Noise Ratio and described user's multiple-input and multiple-output MIMO pattern, described MIMO pattern comprises alone family multiple-input and multiple-output SU-MIMO pattern or multi-user's multiple-input and multiple-output MU-MIMO pattern;

The second acquisition module, for the described MIMO pattern getting according to described the first acquisition module, obtains the outer shroud link circuit self-adapting OLLA adjustment amount corresponding with described user's described MIMO pattern;

The 3rd acquisition module, the described OLLA adjustment amount getting for the described Signal Interference and Noise Ratio that gets according to described the first acquisition module and described the second acquisition module, obtains described user's channel quality indicated value.

7. device according to claim 6, is characterized in that, also comprises:

The 4th acquisition module, for obtaining described user's transmitting state information, described transmitting state information is for showing the correct or error of transmission of described user's the transmission of packet;

Described the second acquisition module, the described MIMO pattern also getting for the described transmitting state information that gets according to described the 4th acquisition module and described the first acquisition module, obtain the OLLA adjustment amount corresponding with described transmitting state information and described MIMO pattern: if described user in described SU-MIMO pattern, obtains the OLLA adjustment amount corresponding with described SU-MIMO pattern and described transmitting state information; If described user in described MU-MIMO pattern, obtains the OLLA adjustment amount corresponding with described MU-MIMO pattern and described transmitting state information.

8. device according to claim 7, is characterized in that, described the second acquisition module, also for:

Obtain OLLA adjustment amount corresponding to described MIMO pattern by mode independently; Or, obtain OLLA adjustment amount corresponding to described MIMO pattern by the mode of intersecting, wherein, described independently mode is only to use OLLA corresponding to described MIMO pattern to adjust parameter, and the mode of described intersection is that OLLA corresponding to the different MIMO patterns of cross-reference adjusts parameter.

9. device according to claim 8, is characterized in that, described the second acquisition module, specifically for:

If being SU-MIMO pattern and described transmitting state information, described MIMO pattern shows that transmission is correct, obtains described OLLA adjustment amount according to following formula:

Δ' _{SINR_SU-MIMO}=Δ _{SINR_SU-MIMO}+S _SU-MIMO×BLER _{T_SU-MIMO}；

Show error of transmission if described MIMO pattern is SU-MIMO pattern and described transmitting state information, obtain described OLLA adjustment amount according to following formula:

Δ’ _{SINR_SU-MIMO}=Δ _{SINR_SU-MIMO}-S _SU-MIMO×（1.0-BLER _{T_SU-MIMO}）；

If being MU-MIMO pattern and described transmitting state information, described MIMO pattern shows that transmission is correct, obtains described OLLA adjustment amount according to following formula:

Δ' _{SINR_MU-MIMO}=Δ _{SINR_MU-MIMO}+S _MU-MIMO×BLER _{T_MU-MIMO}；

Show error of transmission if described MIMO pattern is MU-MIMO pattern and described transmitting state information, obtain described OLLA adjustment amount according to following formula:

Δ’ _{SINR_MU-MIMO}=Δ _{SINR_MU-MIMO}-S _MU-MIMO×（1.0-BLER _{T_MU-MIMO}）；

Wherein, target Block Error Rate corresponding to SU-MIMO pattern is BLER _{t_SU-MIMO}, target Block Error Rate corresponding to MU-MIMO pattern is BLER _{t_MU-MIMO}, and 0.0<BLER _{t_SU-MIMO}<1,0.0<BLER _{t_MU-MIMO}<1; Signal Interference and Noise Ratio adjustment amount corresponding to SU-MIMO pattern is Δ _{sINR_SU-MIMO}, Signal Interference and Noise Ratio adjustment amount corresponding to MU-MIMO pattern is Δ _{sINR_MU-MIMO}; Step-length corresponding to SU-MIMO pattern is S _sU-MIMO, step-length corresponding to MU-MIMO pattern is S _mU-MIMO; OLLA adjustment amount corresponding to SU-MIMO pattern is Δ ' _{sINR_SU-MIMO}, OLLA adjustment amount corresponding to MU-MIMO pattern is Δ ' _{sINR_MU-MIMO}.

10. device according to claim 8, is characterized in that, described the second acquisition module, specifically for:

If being SU-MIMO pattern and described transmitting state information, described MIMO pattern shows that transmission is correct, obtains described OLLA adjustment amount according to following formula:

${\mathrm{\&Delta;}}_{\mathrm{SINR}\_\mathrm{SU}-\mathrm{MIMO}}^{\&prime;}={\mathrm{\&Delta;}}_{\mathrm{SINR}\_\mathrm{SU}-\mathrm{MIMO}}+S_{\mathrm{SU}-\mathrm{MIMO}}\&times;{\mathrm{BLER}}_{T\_\mathrm{SU}-\mathrm{MIMO}}+\&PartialD;\&times;{\mathrm{\&Delta;}}_{\mathrm{SINR}\_\mathrm{MU}-\mathrm{MIMO}};$

Show error of transmission if described MIMO pattern is SU-MIMO pattern and described transmitting state information, obtain described OLLA adjustment amount according to following formula:

${\mathrm{\&Delta;}}_{\mathrm{SINR}\_\mathrm{SU}-\mathrm{MIMO}}^{\&prime;}={\mathrm{\&Delta;}}_{\mathrm{SINR}\_\mathrm{SU}-\mathrm{MIMO}}-S_{\mathrm{SU}-\mathrm{MIMO}}\&times;(1.0-{\mathrm{BLER}}_{T\_\mathrm{SU}-\mathrm{MIMO}})+\&PartialD;\&times;{\mathrm{\&Delta;}}_{\mathrm{SINR}\_\mathrm{MU}-\mathrm{MIMO}};$

If being MU-MIMO pattern and described transmitting state information, described MIMO pattern shows that transmission is correct, obtains described OLLA adjustment amount according to following formula:

${\mathrm{\&Delta;}}_{\mathrm{SINR}\_\mathrm{MU}-\mathrm{MIMO}}^{\&prime;}={\mathrm{\&Delta;}}_{\mathrm{SINR}\_\mathrm{MU}-\mathrm{MIMO}}+S_{\mathrm{MU}-\mathrm{MIMO}}\&times;{\mathrm{BLER}}_{T\_\mathrm{SU}-\mathrm{MIMO}}+\&PartialD;\&times;{\mathrm{\&Delta;}}_{\mathrm{SINR}\_\mathrm{SU}-\mathrm{MIMO}};$

Show error of transmission if described MIMO pattern is MU-MIMO pattern and described transmitting state information, obtain described OLLA adjustment amount according to following formula:

${\mathrm{\&Delta;}}_{\mathrm{SINR}\_\mathrm{MU}-\mathrm{MIMO}}^{\&prime;}={\mathrm{\&Delta;}}_{\mathrm{SINR}\_\mathrm{MU}-\mathrm{MIMO}}-S_{\mathrm{MU}-\mathrm{MIMO}}\&times;(1.0-{\mathrm{BLER}}_{T\_\mathrm{MU}-\mathrm{MIMO}})+\&PartialD;\&times;{\mathrm{\&Delta;}}_{\mathrm{SINR}\_\mathrm{SU}-\mathrm{MIMO}};$

Wherein, target Block Error Rate corresponding to SU-MIMO pattern is BLER _{t_SU-MIMO}, target Block Error Rate corresponding to MU-MIMO pattern is BLER _{t_MU-MIMO}, and 0.0<BLER _{t_SU-MIMO}<1,0.0<BLER _{t_MU-MIMO}<1; Signal Interference and Noise Ratio adjustment amount corresponding to SU-MIMO pattern is Δ _{sINR_SU-MIMO}, Signal Interference and Noise Ratio adjustment amount corresponding to MU-MIMO pattern is Δ _{sINR_MU-MIMO}; Step-length corresponding to SU-MIMO pattern is S _sU-MIMO, step-length corresponding to MU-MIMO pattern is S _mU-MIMO; OLLA adjustment amount corresponding to SU-MIMO pattern is Δ ' _{sINR_SU-MIMO}, OLLA adjustment amount corresponding to MU-MIMO pattern is Δ ' _{sINR_MU-MIMO},

for adjusting the factor, and

The acquisition device of 11. 1 kinds of channel quality indicated values, is characterized in that, comprises memory and processor, described memory store instruction, and described processor is carried out described instruction, for:

Obtain user's Signal Interference and Noise Ratio and described user's multiple-input and multiple-output MIMO pattern, described MIMO pattern comprises alone family multiple-input and multiple-output SU-MIMO pattern or multi-user's multiple-input and multiple-output MU-MIMO pattern, according to described MIMO pattern, obtain the outer shroud link circuit self-adapting OLLA adjustment amount corresponding with described user's described MIMO pattern, according to described user's described Signal Interference and Noise Ratio and described OLLA adjustment amount, obtain described user's channel quality indicated value.

12. devices according to claim 11, is characterized in that, described processor is carried out described instruction, also for:

Obtain described user's transmitting state information, described transmitting state information is for showing the correct or error of transmission of described user's the transmission of packet, according to described transmitting state information and described MIMO pattern, obtain the OLLA adjustment amount corresponding with described transmitting state information and described MIMO pattern: if described user in described SU-MIMO pattern, obtains the OLLA adjustment amount corresponding with described SU-MIMO pattern and described transmitting state information; If described user in described MU-MIMO pattern, obtains the OLLA adjustment amount corresponding with described MU-MIMO pattern and described transmitting state information.

13. devices according to claim 12, is characterized in that, described processor is carried out described instruction, also for:

Obtain OLLA adjustment amount corresponding to described MIMO pattern by mode independently; Or, obtain OLLA adjustment amount corresponding to described MIMO pattern by the mode of intersecting, wherein, described independently mode is only to use OLLA corresponding to described MIMO pattern to adjust parameter, and the mode of described intersection is that OLLA corresponding to the different MIMO patterns of cross-reference adjusts parameter.

14. device according to claim 13, is characterized in that, described processor is carried out described instruction, specifically for:

If being SU-MIMO pattern and described transmitting state information, described MIMO pattern shows that transmission is correct, obtains described OLLA adjustment amount according to following formula:

Δ' _{SINR_SU-MIMO}=Δ _{SINR_SU-MIMO}+S _SU-MIMO×BLER _{T_SU-MIMO}；

Show error of transmission if described MIMO pattern is SU-MIMO pattern and described transmitting state information, obtain described OLLA adjustment amount according to following formula:

Δ’ _{SINR_SU-MIMO}=Δ _{SINR_SU-MIMO}-S _SU-MIMO×（1.0-BLER _{T_SU-MIMO}）；

If being MU-MIMO pattern and described transmitting state information, described MIMO pattern shows that transmission is correct, obtains described OLLA adjustment amount according to following formula:

Δ' _{SINR_MU-MIMO}=Δ _{SINR_MU-MIMO}+S _MU-MIMO×BLER _{T_MU-MIMO}；

Show error of transmission if described MIMO pattern is MU-MIMO pattern and described transmitting state information, obtain described OLLA adjustment amount according to following formula:

Δ’ _{SINR_MU-MIMO}=Δ _{SINR_MU-MIMO}-S _MU-MIMO×（1.0-BLER _{T_MU-MIMO}）；

Wherein, target Block Error Rate corresponding to SU-MIMO pattern is BLER _{t_SU-MIMO}, target Block Error Rate corresponding to MU-MIMO pattern is BLER _{t_MU-MIMO}, and 0.0<BLER _{t_SU-MIMO}<1,0.0<BLER _{t_MU-MIMO}<1; Signal Interference and Noise Ratio adjustment amount corresponding to SU-MIMO pattern is Δ _{sINR_SU-MIMO}, Signal Interference and Noise Ratio adjustment amount corresponding to MU-MIMO pattern is Δ _{sINR_MU-MIMO}; Step-length corresponding to SU-MIMO pattern is S _sU-MIMO, step-length corresponding to MU-MIMO pattern is S _mU-MIMO; OLLA adjustment amount corresponding to SU-MIMO pattern is Δ ' _{sINR_SU-MIMO}, OLLA adjustment amount corresponding to MU-MIMO pattern is Δ ' _{sINR_MU-MIMO}.

15. device according to claim 13, is characterized in that, described processor is carried out described instruction, specifically for:

If being SU-MIMO pattern and described transmitting state information, described MIMO pattern shows that transmission is correct, obtains described OLLA adjustment amount according to following formula:

${\mathrm{\&Delta;}}_{\mathrm{SINR}\_\mathrm{SU}-\mathrm{MIMO}}^{\&prime;}={\mathrm{\&Delta;}}_{\mathrm{SINR}\_\mathrm{SU}-\mathrm{MIMO}}+S_{\mathrm{SU}-\mathrm{MIMO}}\&times;{\mathrm{BLER}}_{T\_\mathrm{SU}-\mathrm{MIMO}}+\&PartialD;\&times;{\mathrm{\&Delta;}}_{\mathrm{SINR}\_\mathrm{MU}-\mathrm{MIMO}};$

Show error of transmission if described MIMO pattern is SU-MIMO pattern and described transmitting state information, obtain described OLLA adjustment amount according to following formula:

${\mathrm{\&Delta;}}_{\mathrm{SINR}\_\mathrm{SU}-\mathrm{MIMO}}^{\&prime;}={\mathrm{\&Delta;}}_{\mathrm{SINR}\_\mathrm{SU}-\mathrm{MIMO}}-S_{\mathrm{SU}-\mathrm{MIMO}}\&times;(1.0-{\mathrm{BLER}}_{T\_\mathrm{SU}-\mathrm{MIMO}})+\&PartialD;\&times;{\mathrm{\&Delta;}}_{\mathrm{SINR}\_\mathrm{MU}-\mathrm{MIMO}};$

If being MU-MIMO pattern and described transmitting state information, described MIMO pattern shows that transmission is correct, obtains described OLLA adjustment amount according to following formula:

${\mathrm{\&Delta;}}_{\mathrm{SINR}\_\mathrm{MU}-\mathrm{MIMO}}^{\&prime;}={\mathrm{\&Delta;}}_{\mathrm{SINR}\_\mathrm{MU}-\mathrm{MIMO}}+S_{\mathrm{MU}-\mathrm{MIMO}}\&times;{\mathrm{BLER}}_{T\_\mathrm{SU}-\mathrm{MIMO}}+\&PartialD;\&times;{\mathrm{\&Delta;}}_{\mathrm{SINR}\_\mathrm{SU}-\mathrm{MIMO}};$

Show error of transmission if described MIMO pattern is MU-MIMO pattern and described transmitting state information, obtain described OLLA adjustment amount according to following formula:

${\mathrm{\&Delta;}}_{\mathrm{SINR}\_\mathrm{MU}-\mathrm{MIMO}}^{\&prime;}={\mathrm{\&Delta;}}_{\mathrm{SINR}\_\mathrm{MU}-\mathrm{MIMO}}-S_{\mathrm{MU}-\mathrm{MIMO}}\&times;(1.0-{\mathrm{BLER}}_{T\_\mathrm{MU}-\mathrm{MIMO}})+\&PartialD;\&times;{\mathrm{\&Delta;}}_{\mathrm{SINR}\_\mathrm{SU}-\mathrm{MIMO}};$

Wherein, target Block Error Rate corresponding to SU-MIMO pattern is BLER _{t_SU-MIMO}, target Block Error Rate corresponding to MU-MIMO pattern is BLER _{t_MU-MIMO}, and 0.0<BLER _{t_SU-MIMO}<1,0.0<BLER _{t_MU-MIMO}<1; Signal Interference and Noise Ratio adjustment amount corresponding to SU-MIMO pattern is Δ _{sINR_SU-MIMO}, Signal Interference and Noise Ratio adjustment amount corresponding to MU-MIMO pattern is Δ _{sINR_MU-MIMO}; Step-length corresponding to SU-MIMO pattern is S _sU-MIMO, step-length corresponding to MU-MIMO pattern is S _mU-MIMO; OLLA adjustment amount corresponding to SU-MIMO pattern is Δ ' _{sINR_SU-MIMO}, OLLA adjustment amount corresponding to MU-MIMO pattern is Δ ' _{sINR_MU-MIMO}, for adjusting the factor, and

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